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bpf: remove mark access for SK_SKB program types
[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / tools / testing / selftests / bpf / test_verifier.c
1 /*
2 * Testsuite for eBPF verifier
3 *
4 * Copyright (c) 2014 PLUMgrid, http://plumgrid.com
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
9 */
10
11 #include <endian.h>
12 #include <asm/types.h>
13 #include <linux/types.h>
14 #include <stdint.h>
15 #include <stdio.h>
16 #include <stdlib.h>
17 #include <unistd.h>
18 #include <errno.h>
19 #include <string.h>
20 #include <stddef.h>
21 #include <stdbool.h>
22 #include <sched.h>
23
24 #include <sys/capability.h>
25 #include <sys/resource.h>
26
27 #include <linux/unistd.h>
28 #include <linux/filter.h>
29 #include <linux/bpf_perf_event.h>
30 #include <linux/bpf.h>
31
32 #include <bpf/bpf.h>
33
34 #ifdef HAVE_GENHDR
35 # include "autoconf.h"
36 #else
37 # if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__)
38 # define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1
39 # endif
40 #endif
41
42 #include "../../../include/linux/filter.h"
43
44 #ifndef ARRAY_SIZE
45 # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
46 #endif
47
48 #define MAX_INSNS 512
49 #define MAX_FIXUPS 8
50 #define MAX_NR_MAPS 4
51
52 #define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS (1 << 0)
53 #define F_LOAD_WITH_STRICT_ALIGNMENT (1 << 1)
54
55 struct bpf_test {
56 const char *descr;
57 struct bpf_insn insns[MAX_INSNS];
58 int fixup_map1[MAX_FIXUPS];
59 int fixup_map2[MAX_FIXUPS];
60 int fixup_prog[MAX_FIXUPS];
61 int fixup_map_in_map[MAX_FIXUPS];
62 const char *errstr;
63 const char *errstr_unpriv;
64 enum {
65 UNDEF,
66 ACCEPT,
67 REJECT
68 } result, result_unpriv;
69 enum bpf_prog_type prog_type;
70 uint8_t flags;
71 };
72
73 /* Note we want this to be 64 bit aligned so that the end of our array is
74 * actually the end of the structure.
75 */
76 #define MAX_ENTRIES 11
77
78 struct test_val {
79 unsigned int index;
80 int foo[MAX_ENTRIES];
81 };
82
83 static struct bpf_test tests[] = {
84 {
85 "add+sub+mul",
86 .insns = {
87 BPF_MOV64_IMM(BPF_REG_1, 1),
88 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2),
89 BPF_MOV64_IMM(BPF_REG_2, 3),
90 BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2),
91 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1),
92 BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3),
93 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
94 BPF_EXIT_INSN(),
95 },
96 .result = ACCEPT,
97 },
98 {
99 "unreachable",
100 .insns = {
101 BPF_EXIT_INSN(),
102 BPF_EXIT_INSN(),
103 },
104 .errstr = "unreachable",
105 .result = REJECT,
106 },
107 {
108 "unreachable2",
109 .insns = {
110 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
111 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
112 BPF_EXIT_INSN(),
113 },
114 .errstr = "unreachable",
115 .result = REJECT,
116 },
117 {
118 "out of range jump",
119 .insns = {
120 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
121 BPF_EXIT_INSN(),
122 },
123 .errstr = "jump out of range",
124 .result = REJECT,
125 },
126 {
127 "out of range jump2",
128 .insns = {
129 BPF_JMP_IMM(BPF_JA, 0, 0, -2),
130 BPF_EXIT_INSN(),
131 },
132 .errstr = "jump out of range",
133 .result = REJECT,
134 },
135 {
136 "test1 ld_imm64",
137 .insns = {
138 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
139 BPF_LD_IMM64(BPF_REG_0, 0),
140 BPF_LD_IMM64(BPF_REG_0, 0),
141 BPF_LD_IMM64(BPF_REG_0, 1),
142 BPF_LD_IMM64(BPF_REG_0, 1),
143 BPF_MOV64_IMM(BPF_REG_0, 2),
144 BPF_EXIT_INSN(),
145 },
146 .errstr = "invalid BPF_LD_IMM insn",
147 .errstr_unpriv = "R1 pointer comparison",
148 .result = REJECT,
149 },
150 {
151 "test2 ld_imm64",
152 .insns = {
153 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
154 BPF_LD_IMM64(BPF_REG_0, 0),
155 BPF_LD_IMM64(BPF_REG_0, 0),
156 BPF_LD_IMM64(BPF_REG_0, 1),
157 BPF_LD_IMM64(BPF_REG_0, 1),
158 BPF_EXIT_INSN(),
159 },
160 .errstr = "invalid BPF_LD_IMM insn",
161 .errstr_unpriv = "R1 pointer comparison",
162 .result = REJECT,
163 },
164 {
165 "test3 ld_imm64",
166 .insns = {
167 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
168 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
169 BPF_LD_IMM64(BPF_REG_0, 0),
170 BPF_LD_IMM64(BPF_REG_0, 0),
171 BPF_LD_IMM64(BPF_REG_0, 1),
172 BPF_LD_IMM64(BPF_REG_0, 1),
173 BPF_EXIT_INSN(),
174 },
175 .errstr = "invalid bpf_ld_imm64 insn",
176 .result = REJECT,
177 },
178 {
179 "test4 ld_imm64",
180 .insns = {
181 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
182 BPF_EXIT_INSN(),
183 },
184 .errstr = "invalid bpf_ld_imm64 insn",
185 .result = REJECT,
186 },
187 {
188 "test5 ld_imm64",
189 .insns = {
190 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
191 },
192 .errstr = "invalid bpf_ld_imm64 insn",
193 .result = REJECT,
194 },
195 {
196 "test6 ld_imm64",
197 .insns = {
198 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
199 BPF_RAW_INSN(0, 0, 0, 0, 0),
200 BPF_EXIT_INSN(),
201 },
202 .result = ACCEPT,
203 },
204 {
205 "test7 ld_imm64",
206 .insns = {
207 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
208 BPF_RAW_INSN(0, 0, 0, 0, 1),
209 BPF_EXIT_INSN(),
210 },
211 .result = ACCEPT,
212 },
213 {
214 "test8 ld_imm64",
215 .insns = {
216 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 1, 1),
217 BPF_RAW_INSN(0, 0, 0, 0, 1),
218 BPF_EXIT_INSN(),
219 },
220 .errstr = "uses reserved fields",
221 .result = REJECT,
222 },
223 {
224 "test9 ld_imm64",
225 .insns = {
226 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
227 BPF_RAW_INSN(0, 0, 0, 1, 1),
228 BPF_EXIT_INSN(),
229 },
230 .errstr = "invalid bpf_ld_imm64 insn",
231 .result = REJECT,
232 },
233 {
234 "test10 ld_imm64",
235 .insns = {
236 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
237 BPF_RAW_INSN(0, BPF_REG_1, 0, 0, 1),
238 BPF_EXIT_INSN(),
239 },
240 .errstr = "invalid bpf_ld_imm64 insn",
241 .result = REJECT,
242 },
243 {
244 "test11 ld_imm64",
245 .insns = {
246 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
247 BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
248 BPF_EXIT_INSN(),
249 },
250 .errstr = "invalid bpf_ld_imm64 insn",
251 .result = REJECT,
252 },
253 {
254 "test12 ld_imm64",
255 .insns = {
256 BPF_MOV64_IMM(BPF_REG_1, 0),
257 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
258 BPF_RAW_INSN(0, 0, 0, 0, 1),
259 BPF_EXIT_INSN(),
260 },
261 .errstr = "not pointing to valid bpf_map",
262 .result = REJECT,
263 },
264 {
265 "test13 ld_imm64",
266 .insns = {
267 BPF_MOV64_IMM(BPF_REG_1, 0),
268 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
269 BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
270 BPF_EXIT_INSN(),
271 },
272 .errstr = "invalid bpf_ld_imm64 insn",
273 .result = REJECT,
274 },
275 {
276 "no bpf_exit",
277 .insns = {
278 BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2),
279 },
280 .errstr = "jump out of range",
281 .result = REJECT,
282 },
283 {
284 "loop (back-edge)",
285 .insns = {
286 BPF_JMP_IMM(BPF_JA, 0, 0, -1),
287 BPF_EXIT_INSN(),
288 },
289 .errstr = "back-edge",
290 .result = REJECT,
291 },
292 {
293 "loop2 (back-edge)",
294 .insns = {
295 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
296 BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
297 BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
298 BPF_JMP_IMM(BPF_JA, 0, 0, -4),
299 BPF_EXIT_INSN(),
300 },
301 .errstr = "back-edge",
302 .result = REJECT,
303 },
304 {
305 "conditional loop",
306 .insns = {
307 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
308 BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
309 BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
310 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3),
311 BPF_EXIT_INSN(),
312 },
313 .errstr = "back-edge",
314 .result = REJECT,
315 },
316 {
317 "read uninitialized register",
318 .insns = {
319 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
320 BPF_EXIT_INSN(),
321 },
322 .errstr = "R2 !read_ok",
323 .result = REJECT,
324 },
325 {
326 "read invalid register",
327 .insns = {
328 BPF_MOV64_REG(BPF_REG_0, -1),
329 BPF_EXIT_INSN(),
330 },
331 .errstr = "R15 is invalid",
332 .result = REJECT,
333 },
334 {
335 "program doesn't init R0 before exit",
336 .insns = {
337 BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
338 BPF_EXIT_INSN(),
339 },
340 .errstr = "R0 !read_ok",
341 .result = REJECT,
342 },
343 {
344 "program doesn't init R0 before exit in all branches",
345 .insns = {
346 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
347 BPF_MOV64_IMM(BPF_REG_0, 1),
348 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
349 BPF_EXIT_INSN(),
350 },
351 .errstr = "R0 !read_ok",
352 .errstr_unpriv = "R1 pointer comparison",
353 .result = REJECT,
354 },
355 {
356 "stack out of bounds",
357 .insns = {
358 BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0),
359 BPF_EXIT_INSN(),
360 },
361 .errstr = "invalid stack",
362 .result = REJECT,
363 },
364 {
365 "invalid call insn1",
366 .insns = {
367 BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0),
368 BPF_EXIT_INSN(),
369 },
370 .errstr = "BPF_CALL uses reserved",
371 .result = REJECT,
372 },
373 {
374 "invalid call insn2",
375 .insns = {
376 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0),
377 BPF_EXIT_INSN(),
378 },
379 .errstr = "BPF_CALL uses reserved",
380 .result = REJECT,
381 },
382 {
383 "invalid function call",
384 .insns = {
385 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567),
386 BPF_EXIT_INSN(),
387 },
388 .errstr = "invalid func unknown#1234567",
389 .result = REJECT,
390 },
391 {
392 "uninitialized stack1",
393 .insns = {
394 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
395 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
396 BPF_LD_MAP_FD(BPF_REG_1, 0),
397 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
398 BPF_FUNC_map_lookup_elem),
399 BPF_EXIT_INSN(),
400 },
401 .fixup_map1 = { 2 },
402 .errstr = "invalid indirect read from stack",
403 .result = REJECT,
404 },
405 {
406 "uninitialized stack2",
407 .insns = {
408 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
409 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8),
410 BPF_EXIT_INSN(),
411 },
412 .errstr = "invalid read from stack",
413 .result = REJECT,
414 },
415 {
416 "invalid fp arithmetic",
417 /* If this gets ever changed, make sure JITs can deal with it. */
418 .insns = {
419 BPF_MOV64_IMM(BPF_REG_0, 0),
420 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
421 BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 8),
422 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
423 BPF_EXIT_INSN(),
424 },
425 .errstr_unpriv = "R1 subtraction from stack pointer",
426 .result_unpriv = REJECT,
427 .errstr = "R1 invalid mem access",
428 .result = REJECT,
429 },
430 {
431 "non-invalid fp arithmetic",
432 .insns = {
433 BPF_MOV64_IMM(BPF_REG_0, 0),
434 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
435 BPF_EXIT_INSN(),
436 },
437 .result = ACCEPT,
438 },
439 {
440 "invalid argument register",
441 .insns = {
442 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
443 BPF_FUNC_get_cgroup_classid),
444 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
445 BPF_FUNC_get_cgroup_classid),
446 BPF_EXIT_INSN(),
447 },
448 .errstr = "R1 !read_ok",
449 .result = REJECT,
450 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
451 },
452 {
453 "non-invalid argument register",
454 .insns = {
455 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
456 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
457 BPF_FUNC_get_cgroup_classid),
458 BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6),
459 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
460 BPF_FUNC_get_cgroup_classid),
461 BPF_EXIT_INSN(),
462 },
463 .result = ACCEPT,
464 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
465 },
466 {
467 "check valid spill/fill",
468 .insns = {
469 /* spill R1(ctx) into stack */
470 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
471 /* fill it back into R2 */
472 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8),
473 /* should be able to access R0 = *(R2 + 8) */
474 /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */
475 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
476 BPF_EXIT_INSN(),
477 },
478 .errstr_unpriv = "R0 leaks addr",
479 .result = ACCEPT,
480 .result_unpriv = REJECT,
481 },
482 {
483 "check valid spill/fill, skb mark",
484 .insns = {
485 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
486 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
487 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
488 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
489 offsetof(struct __sk_buff, mark)),
490 BPF_EXIT_INSN(),
491 },
492 .result = ACCEPT,
493 .result_unpriv = ACCEPT,
494 },
495 {
496 "check corrupted spill/fill",
497 .insns = {
498 /* spill R1(ctx) into stack */
499 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
500 /* mess up with R1 pointer on stack */
501 BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23),
502 /* fill back into R0 should fail */
503 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
504 BPF_EXIT_INSN(),
505 },
506 .errstr_unpriv = "attempt to corrupt spilled",
507 .errstr = "corrupted spill",
508 .result = REJECT,
509 },
510 {
511 "invalid src register in STX",
512 .insns = {
513 BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1),
514 BPF_EXIT_INSN(),
515 },
516 .errstr = "R15 is invalid",
517 .result = REJECT,
518 },
519 {
520 "invalid dst register in STX",
521 .insns = {
522 BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1),
523 BPF_EXIT_INSN(),
524 },
525 .errstr = "R14 is invalid",
526 .result = REJECT,
527 },
528 {
529 "invalid dst register in ST",
530 .insns = {
531 BPF_ST_MEM(BPF_B, 14, -1, -1),
532 BPF_EXIT_INSN(),
533 },
534 .errstr = "R14 is invalid",
535 .result = REJECT,
536 },
537 {
538 "invalid src register in LDX",
539 .insns = {
540 BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0),
541 BPF_EXIT_INSN(),
542 },
543 .errstr = "R12 is invalid",
544 .result = REJECT,
545 },
546 {
547 "invalid dst register in LDX",
548 .insns = {
549 BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0),
550 BPF_EXIT_INSN(),
551 },
552 .errstr = "R11 is invalid",
553 .result = REJECT,
554 },
555 {
556 "junk insn",
557 .insns = {
558 BPF_RAW_INSN(0, 0, 0, 0, 0),
559 BPF_EXIT_INSN(),
560 },
561 .errstr = "invalid BPF_LD_IMM",
562 .result = REJECT,
563 },
564 {
565 "junk insn2",
566 .insns = {
567 BPF_RAW_INSN(1, 0, 0, 0, 0),
568 BPF_EXIT_INSN(),
569 },
570 .errstr = "BPF_LDX uses reserved fields",
571 .result = REJECT,
572 },
573 {
574 "junk insn3",
575 .insns = {
576 BPF_RAW_INSN(-1, 0, 0, 0, 0),
577 BPF_EXIT_INSN(),
578 },
579 .errstr = "invalid BPF_ALU opcode f0",
580 .result = REJECT,
581 },
582 {
583 "junk insn4",
584 .insns = {
585 BPF_RAW_INSN(-1, -1, -1, -1, -1),
586 BPF_EXIT_INSN(),
587 },
588 .errstr = "invalid BPF_ALU opcode f0",
589 .result = REJECT,
590 },
591 {
592 "junk insn5",
593 .insns = {
594 BPF_RAW_INSN(0x7f, -1, -1, -1, -1),
595 BPF_EXIT_INSN(),
596 },
597 .errstr = "BPF_ALU uses reserved fields",
598 .result = REJECT,
599 },
600 {
601 "misaligned read from stack",
602 .insns = {
603 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
604 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4),
605 BPF_EXIT_INSN(),
606 },
607 .errstr = "misaligned stack access",
608 .result = REJECT,
609 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
610 },
611 {
612 "invalid map_fd for function call",
613 .insns = {
614 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
615 BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10),
616 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
617 BPF_LD_MAP_FD(BPF_REG_1, 0),
618 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
619 BPF_FUNC_map_delete_elem),
620 BPF_EXIT_INSN(),
621 },
622 .errstr = "fd 0 is not pointing to valid bpf_map",
623 .result = REJECT,
624 },
625 {
626 "don't check return value before access",
627 .insns = {
628 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
629 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
630 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
631 BPF_LD_MAP_FD(BPF_REG_1, 0),
632 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
633 BPF_FUNC_map_lookup_elem),
634 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
635 BPF_EXIT_INSN(),
636 },
637 .fixup_map1 = { 3 },
638 .errstr = "R0 invalid mem access 'map_value_or_null'",
639 .result = REJECT,
640 },
641 {
642 "access memory with incorrect alignment",
643 .insns = {
644 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
645 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
646 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
647 BPF_LD_MAP_FD(BPF_REG_1, 0),
648 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
649 BPF_FUNC_map_lookup_elem),
650 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
651 BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0),
652 BPF_EXIT_INSN(),
653 },
654 .fixup_map1 = { 3 },
655 .errstr = "misaligned value access",
656 .result = REJECT,
657 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
658 },
659 {
660 "sometimes access memory with incorrect alignment",
661 .insns = {
662 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
663 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
664 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
665 BPF_LD_MAP_FD(BPF_REG_1, 0),
666 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
667 BPF_FUNC_map_lookup_elem),
668 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
669 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
670 BPF_EXIT_INSN(),
671 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1),
672 BPF_EXIT_INSN(),
673 },
674 .fixup_map1 = { 3 },
675 .errstr = "R0 invalid mem access",
676 .errstr_unpriv = "R0 leaks addr",
677 .result = REJECT,
678 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
679 },
680 {
681 "jump test 1",
682 .insns = {
683 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
684 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
685 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
686 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
687 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
688 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1),
689 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1),
690 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2),
691 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1),
692 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3),
693 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
694 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4),
695 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
696 BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5),
697 BPF_MOV64_IMM(BPF_REG_0, 0),
698 BPF_EXIT_INSN(),
699 },
700 .errstr_unpriv = "R1 pointer comparison",
701 .result_unpriv = REJECT,
702 .result = ACCEPT,
703 },
704 {
705 "jump test 2",
706 .insns = {
707 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
708 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
709 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
710 BPF_JMP_IMM(BPF_JA, 0, 0, 14),
711 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
712 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
713 BPF_JMP_IMM(BPF_JA, 0, 0, 11),
714 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2),
715 BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
716 BPF_JMP_IMM(BPF_JA, 0, 0, 8),
717 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
718 BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
719 BPF_JMP_IMM(BPF_JA, 0, 0, 5),
720 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2),
721 BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
722 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
723 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
724 BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
725 BPF_MOV64_IMM(BPF_REG_0, 0),
726 BPF_EXIT_INSN(),
727 },
728 .errstr_unpriv = "R1 pointer comparison",
729 .result_unpriv = REJECT,
730 .result = ACCEPT,
731 },
732 {
733 "jump test 3",
734 .insns = {
735 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
736 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
737 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
738 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
739 BPF_JMP_IMM(BPF_JA, 0, 0, 19),
740 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3),
741 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
742 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
743 BPF_JMP_IMM(BPF_JA, 0, 0, 15),
744 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3),
745 BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
746 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
747 BPF_JMP_IMM(BPF_JA, 0, 0, 11),
748 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3),
749 BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
750 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40),
751 BPF_JMP_IMM(BPF_JA, 0, 0, 7),
752 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3),
753 BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
754 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48),
755 BPF_JMP_IMM(BPF_JA, 0, 0, 3),
756 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0),
757 BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
758 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56),
759 BPF_LD_MAP_FD(BPF_REG_1, 0),
760 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
761 BPF_FUNC_map_delete_elem),
762 BPF_EXIT_INSN(),
763 },
764 .fixup_map1 = { 24 },
765 .errstr_unpriv = "R1 pointer comparison",
766 .result_unpriv = REJECT,
767 .result = ACCEPT,
768 },
769 {
770 "jump test 4",
771 .insns = {
772 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
773 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
774 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
775 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
776 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
777 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
778 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
779 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
780 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
781 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
782 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
783 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
784 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
785 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
786 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
787 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
788 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
789 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
790 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
791 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
792 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
793 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
794 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
795 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
796 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
797 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
798 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
799 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
800 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
801 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
802 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
803 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
804 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
805 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
806 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
807 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
808 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
809 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
810 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
811 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
812 BPF_MOV64_IMM(BPF_REG_0, 0),
813 BPF_EXIT_INSN(),
814 },
815 .errstr_unpriv = "R1 pointer comparison",
816 .result_unpriv = REJECT,
817 .result = ACCEPT,
818 },
819 {
820 "jump test 5",
821 .insns = {
822 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
823 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
824 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
825 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
826 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
827 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
828 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
829 BPF_MOV64_IMM(BPF_REG_0, 0),
830 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
831 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
832 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
833 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
834 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
835 BPF_MOV64_IMM(BPF_REG_0, 0),
836 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
837 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
838 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
839 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
840 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
841 BPF_MOV64_IMM(BPF_REG_0, 0),
842 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
843 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
844 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
845 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
846 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
847 BPF_MOV64_IMM(BPF_REG_0, 0),
848 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
849 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
850 BPF_JMP_IMM(BPF_JA, 0, 0, 2),
851 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
852 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
853 BPF_MOV64_IMM(BPF_REG_0, 0),
854 BPF_EXIT_INSN(),
855 },
856 .errstr_unpriv = "R1 pointer comparison",
857 .result_unpriv = REJECT,
858 .result = ACCEPT,
859 },
860 {
861 "access skb fields ok",
862 .insns = {
863 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
864 offsetof(struct __sk_buff, len)),
865 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
866 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
867 offsetof(struct __sk_buff, mark)),
868 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
869 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
870 offsetof(struct __sk_buff, pkt_type)),
871 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
872 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
873 offsetof(struct __sk_buff, queue_mapping)),
874 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
875 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
876 offsetof(struct __sk_buff, protocol)),
877 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
878 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
879 offsetof(struct __sk_buff, vlan_present)),
880 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
881 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
882 offsetof(struct __sk_buff, vlan_tci)),
883 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
884 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
885 offsetof(struct __sk_buff, napi_id)),
886 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
887 BPF_EXIT_INSN(),
888 },
889 .result = ACCEPT,
890 },
891 {
892 "access skb fields bad1",
893 .insns = {
894 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4),
895 BPF_EXIT_INSN(),
896 },
897 .errstr = "invalid bpf_context access",
898 .result = REJECT,
899 },
900 {
901 "access skb fields bad2",
902 .insns = {
903 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9),
904 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
905 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
906 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
907 BPF_LD_MAP_FD(BPF_REG_1, 0),
908 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
909 BPF_FUNC_map_lookup_elem),
910 BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
911 BPF_EXIT_INSN(),
912 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
913 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
914 offsetof(struct __sk_buff, pkt_type)),
915 BPF_EXIT_INSN(),
916 },
917 .fixup_map1 = { 4 },
918 .errstr = "different pointers",
919 .errstr_unpriv = "R1 pointer comparison",
920 .result = REJECT,
921 },
922 {
923 "access skb fields bad3",
924 .insns = {
925 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
926 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
927 offsetof(struct __sk_buff, pkt_type)),
928 BPF_EXIT_INSN(),
929 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
930 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
931 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
932 BPF_LD_MAP_FD(BPF_REG_1, 0),
933 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
934 BPF_FUNC_map_lookup_elem),
935 BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
936 BPF_EXIT_INSN(),
937 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
938 BPF_JMP_IMM(BPF_JA, 0, 0, -12),
939 },
940 .fixup_map1 = { 6 },
941 .errstr = "different pointers",
942 .errstr_unpriv = "R1 pointer comparison",
943 .result = REJECT,
944 },
945 {
946 "access skb fields bad4",
947 .insns = {
948 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3),
949 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
950 offsetof(struct __sk_buff, len)),
951 BPF_MOV64_IMM(BPF_REG_0, 0),
952 BPF_EXIT_INSN(),
953 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
954 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
955 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
956 BPF_LD_MAP_FD(BPF_REG_1, 0),
957 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
958 BPF_FUNC_map_lookup_elem),
959 BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
960 BPF_EXIT_INSN(),
961 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
962 BPF_JMP_IMM(BPF_JA, 0, 0, -13),
963 },
964 .fixup_map1 = { 7 },
965 .errstr = "different pointers",
966 .errstr_unpriv = "R1 pointer comparison",
967 .result = REJECT,
968 },
969 {
970 "invalid access __sk_buff family",
971 .insns = {
972 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
973 offsetof(struct __sk_buff, family)),
974 BPF_EXIT_INSN(),
975 },
976 .errstr = "invalid bpf_context access",
977 .result = REJECT,
978 },
979 {
980 "invalid access __sk_buff remote_ip4",
981 .insns = {
982 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
983 offsetof(struct __sk_buff, remote_ip4)),
984 BPF_EXIT_INSN(),
985 },
986 .errstr = "invalid bpf_context access",
987 .result = REJECT,
988 },
989 {
990 "invalid access __sk_buff local_ip4",
991 .insns = {
992 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
993 offsetof(struct __sk_buff, local_ip4)),
994 BPF_EXIT_INSN(),
995 },
996 .errstr = "invalid bpf_context access",
997 .result = REJECT,
998 },
999 {
1000 "invalid access __sk_buff remote_ip6",
1001 .insns = {
1002 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1003 offsetof(struct __sk_buff, remote_ip6)),
1004 BPF_EXIT_INSN(),
1005 },
1006 .errstr = "invalid bpf_context access",
1007 .result = REJECT,
1008 },
1009 {
1010 "invalid access __sk_buff local_ip6",
1011 .insns = {
1012 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1013 offsetof(struct __sk_buff, local_ip6)),
1014 BPF_EXIT_INSN(),
1015 },
1016 .errstr = "invalid bpf_context access",
1017 .result = REJECT,
1018 },
1019 {
1020 "invalid access __sk_buff remote_port",
1021 .insns = {
1022 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1023 offsetof(struct __sk_buff, remote_port)),
1024 BPF_EXIT_INSN(),
1025 },
1026 .errstr = "invalid bpf_context access",
1027 .result = REJECT,
1028 },
1029 {
1030 "invalid access __sk_buff remote_port",
1031 .insns = {
1032 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1033 offsetof(struct __sk_buff, local_port)),
1034 BPF_EXIT_INSN(),
1035 },
1036 .errstr = "invalid bpf_context access",
1037 .result = REJECT,
1038 },
1039 {
1040 "valid access __sk_buff family",
1041 .insns = {
1042 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1043 offsetof(struct __sk_buff, family)),
1044 BPF_EXIT_INSN(),
1045 },
1046 .result = ACCEPT,
1047 .prog_type = BPF_PROG_TYPE_SK_SKB,
1048 },
1049 {
1050 "valid access __sk_buff remote_ip4",
1051 .insns = {
1052 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1053 offsetof(struct __sk_buff, remote_ip4)),
1054 BPF_EXIT_INSN(),
1055 },
1056 .result = ACCEPT,
1057 .prog_type = BPF_PROG_TYPE_SK_SKB,
1058 },
1059 {
1060 "valid access __sk_buff local_ip4",
1061 .insns = {
1062 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1063 offsetof(struct __sk_buff, local_ip4)),
1064 BPF_EXIT_INSN(),
1065 },
1066 .result = ACCEPT,
1067 .prog_type = BPF_PROG_TYPE_SK_SKB,
1068 },
1069 {
1070 "valid access __sk_buff remote_ip6",
1071 .insns = {
1072 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1073 offsetof(struct __sk_buff, remote_ip6[0])),
1074 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1075 offsetof(struct __sk_buff, remote_ip6[1])),
1076 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1077 offsetof(struct __sk_buff, remote_ip6[2])),
1078 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1079 offsetof(struct __sk_buff, remote_ip6[3])),
1080 BPF_EXIT_INSN(),
1081 },
1082 .result = ACCEPT,
1083 .prog_type = BPF_PROG_TYPE_SK_SKB,
1084 },
1085 {
1086 "valid access __sk_buff local_ip6",
1087 .insns = {
1088 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1089 offsetof(struct __sk_buff, local_ip6[0])),
1090 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1091 offsetof(struct __sk_buff, local_ip6[1])),
1092 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1093 offsetof(struct __sk_buff, local_ip6[2])),
1094 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1095 offsetof(struct __sk_buff, local_ip6[3])),
1096 BPF_EXIT_INSN(),
1097 },
1098 .result = ACCEPT,
1099 .prog_type = BPF_PROG_TYPE_SK_SKB,
1100 },
1101 {
1102 "valid access __sk_buff remote_port",
1103 .insns = {
1104 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1105 offsetof(struct __sk_buff, remote_port)),
1106 BPF_EXIT_INSN(),
1107 },
1108 .result = ACCEPT,
1109 .prog_type = BPF_PROG_TYPE_SK_SKB,
1110 },
1111 {
1112 "valid access __sk_buff remote_port",
1113 .insns = {
1114 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1115 offsetof(struct __sk_buff, local_port)),
1116 BPF_EXIT_INSN(),
1117 },
1118 .result = ACCEPT,
1119 .prog_type = BPF_PROG_TYPE_SK_SKB,
1120 },
1121 {
1122 "invalid access of tc_classid for SK_SKB",
1123 .insns = {
1124 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1125 offsetof(struct __sk_buff, tc_classid)),
1126 BPF_EXIT_INSN(),
1127 },
1128 .result = REJECT,
1129 .prog_type = BPF_PROG_TYPE_SK_SKB,
1130 .errstr = "invalid bpf_context access",
1131 },
1132 {
1133 "invalid access of skb->mark for SK_SKB",
1134 .insns = {
1135 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1136 offsetof(struct __sk_buff, mark)),
1137 BPF_EXIT_INSN(),
1138 },
1139 .result = REJECT,
1140 .prog_type = BPF_PROG_TYPE_SK_SKB,
1141 .errstr = "invalid bpf_context access",
1142 },
1143 {
1144 "check skb->mark is not writeable by SK_SKB",
1145 .insns = {
1146 BPF_MOV64_IMM(BPF_REG_0, 0),
1147 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1148 offsetof(struct __sk_buff, mark)),
1149 BPF_EXIT_INSN(),
1150 },
1151 .result = REJECT,
1152 .prog_type = BPF_PROG_TYPE_SK_SKB,
1153 .errstr = "invalid bpf_context access",
1154 },
1155 {
1156 "check skb->tc_index is writeable by SK_SKB",
1157 .insns = {
1158 BPF_MOV64_IMM(BPF_REG_0, 0),
1159 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1160 offsetof(struct __sk_buff, tc_index)),
1161 BPF_EXIT_INSN(),
1162 },
1163 .result = ACCEPT,
1164 .prog_type = BPF_PROG_TYPE_SK_SKB,
1165 },
1166 {
1167 "check skb->priority is writeable by SK_SKB",
1168 .insns = {
1169 BPF_MOV64_IMM(BPF_REG_0, 0),
1170 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1171 offsetof(struct __sk_buff, priority)),
1172 BPF_EXIT_INSN(),
1173 },
1174 .result = ACCEPT,
1175 .prog_type = BPF_PROG_TYPE_SK_SKB,
1176 },
1177 {
1178 "direct packet read for SK_SKB",
1179 .insns = {
1180 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
1181 offsetof(struct __sk_buff, data)),
1182 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
1183 offsetof(struct __sk_buff, data_end)),
1184 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
1185 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
1186 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
1187 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
1188 BPF_MOV64_IMM(BPF_REG_0, 0),
1189 BPF_EXIT_INSN(),
1190 },
1191 .result = ACCEPT,
1192 .prog_type = BPF_PROG_TYPE_SK_SKB,
1193 },
1194 {
1195 "direct packet write for SK_SKB",
1196 .insns = {
1197 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
1198 offsetof(struct __sk_buff, data)),
1199 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
1200 offsetof(struct __sk_buff, data_end)),
1201 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
1202 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
1203 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
1204 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
1205 BPF_MOV64_IMM(BPF_REG_0, 0),
1206 BPF_EXIT_INSN(),
1207 },
1208 .result = ACCEPT,
1209 .prog_type = BPF_PROG_TYPE_SK_SKB,
1210 },
1211 {
1212 "overlapping checks for direct packet access SK_SKB",
1213 .insns = {
1214 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
1215 offsetof(struct __sk_buff, data)),
1216 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
1217 offsetof(struct __sk_buff, data_end)),
1218 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
1219 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
1220 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4),
1221 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
1222 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
1223 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
1224 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6),
1225 BPF_MOV64_IMM(BPF_REG_0, 0),
1226 BPF_EXIT_INSN(),
1227 },
1228 .result = ACCEPT,
1229 .prog_type = BPF_PROG_TYPE_SK_SKB,
1230 },
1231 {
1232 "check skb->mark is not writeable by sockets",
1233 .insns = {
1234 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
1235 offsetof(struct __sk_buff, mark)),
1236 BPF_EXIT_INSN(),
1237 },
1238 .errstr = "invalid bpf_context access",
1239 .errstr_unpriv = "R1 leaks addr",
1240 .result = REJECT,
1241 },
1242 {
1243 "check skb->tc_index is not writeable by sockets",
1244 .insns = {
1245 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
1246 offsetof(struct __sk_buff, tc_index)),
1247 BPF_EXIT_INSN(),
1248 },
1249 .errstr = "invalid bpf_context access",
1250 .errstr_unpriv = "R1 leaks addr",
1251 .result = REJECT,
1252 },
1253 {
1254 "check cb access: byte",
1255 .insns = {
1256 BPF_MOV64_IMM(BPF_REG_0, 0),
1257 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1258 offsetof(struct __sk_buff, cb[0])),
1259 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1260 offsetof(struct __sk_buff, cb[0]) + 1),
1261 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1262 offsetof(struct __sk_buff, cb[0]) + 2),
1263 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1264 offsetof(struct __sk_buff, cb[0]) + 3),
1265 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1266 offsetof(struct __sk_buff, cb[1])),
1267 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1268 offsetof(struct __sk_buff, cb[1]) + 1),
1269 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1270 offsetof(struct __sk_buff, cb[1]) + 2),
1271 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1272 offsetof(struct __sk_buff, cb[1]) + 3),
1273 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1274 offsetof(struct __sk_buff, cb[2])),
1275 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1276 offsetof(struct __sk_buff, cb[2]) + 1),
1277 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1278 offsetof(struct __sk_buff, cb[2]) + 2),
1279 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1280 offsetof(struct __sk_buff, cb[2]) + 3),
1281 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1282 offsetof(struct __sk_buff, cb[3])),
1283 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1284 offsetof(struct __sk_buff, cb[3]) + 1),
1285 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1286 offsetof(struct __sk_buff, cb[3]) + 2),
1287 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1288 offsetof(struct __sk_buff, cb[3]) + 3),
1289 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1290 offsetof(struct __sk_buff, cb[4])),
1291 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1292 offsetof(struct __sk_buff, cb[4]) + 1),
1293 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1294 offsetof(struct __sk_buff, cb[4]) + 2),
1295 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1296 offsetof(struct __sk_buff, cb[4]) + 3),
1297 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1298 offsetof(struct __sk_buff, cb[0])),
1299 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1300 offsetof(struct __sk_buff, cb[0]) + 1),
1301 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1302 offsetof(struct __sk_buff, cb[0]) + 2),
1303 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1304 offsetof(struct __sk_buff, cb[0]) + 3),
1305 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1306 offsetof(struct __sk_buff, cb[1])),
1307 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1308 offsetof(struct __sk_buff, cb[1]) + 1),
1309 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1310 offsetof(struct __sk_buff, cb[1]) + 2),
1311 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1312 offsetof(struct __sk_buff, cb[1]) + 3),
1313 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1314 offsetof(struct __sk_buff, cb[2])),
1315 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1316 offsetof(struct __sk_buff, cb[2]) + 1),
1317 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1318 offsetof(struct __sk_buff, cb[2]) + 2),
1319 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1320 offsetof(struct __sk_buff, cb[2]) + 3),
1321 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1322 offsetof(struct __sk_buff, cb[3])),
1323 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1324 offsetof(struct __sk_buff, cb[3]) + 1),
1325 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1326 offsetof(struct __sk_buff, cb[3]) + 2),
1327 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1328 offsetof(struct __sk_buff, cb[3]) + 3),
1329 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1330 offsetof(struct __sk_buff, cb[4])),
1331 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1332 offsetof(struct __sk_buff, cb[4]) + 1),
1333 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1334 offsetof(struct __sk_buff, cb[4]) + 2),
1335 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1336 offsetof(struct __sk_buff, cb[4]) + 3),
1337 BPF_EXIT_INSN(),
1338 },
1339 .result = ACCEPT,
1340 },
1341 {
1342 "__sk_buff->hash, offset 0, byte store not permitted",
1343 .insns = {
1344 BPF_MOV64_IMM(BPF_REG_0, 0),
1345 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1346 offsetof(struct __sk_buff, hash)),
1347 BPF_EXIT_INSN(),
1348 },
1349 .errstr = "invalid bpf_context access",
1350 .result = REJECT,
1351 },
1352 {
1353 "__sk_buff->tc_index, offset 3, byte store not permitted",
1354 .insns = {
1355 BPF_MOV64_IMM(BPF_REG_0, 0),
1356 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1357 offsetof(struct __sk_buff, tc_index) + 3),
1358 BPF_EXIT_INSN(),
1359 },
1360 .errstr = "invalid bpf_context access",
1361 .result = REJECT,
1362 },
1363 {
1364 "check skb->hash byte load permitted",
1365 .insns = {
1366 BPF_MOV64_IMM(BPF_REG_0, 0),
1367 #if __BYTE_ORDER == __LITTLE_ENDIAN
1368 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1369 offsetof(struct __sk_buff, hash)),
1370 #else
1371 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1372 offsetof(struct __sk_buff, hash) + 3),
1373 #endif
1374 BPF_EXIT_INSN(),
1375 },
1376 .result = ACCEPT,
1377 },
1378 {
1379 "check skb->hash byte load not permitted 1",
1380 .insns = {
1381 BPF_MOV64_IMM(BPF_REG_0, 0),
1382 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1383 offsetof(struct __sk_buff, hash) + 1),
1384 BPF_EXIT_INSN(),
1385 },
1386 .errstr = "invalid bpf_context access",
1387 .result = REJECT,
1388 },
1389 {
1390 "check skb->hash byte load not permitted 2",
1391 .insns = {
1392 BPF_MOV64_IMM(BPF_REG_0, 0),
1393 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1394 offsetof(struct __sk_buff, hash) + 2),
1395 BPF_EXIT_INSN(),
1396 },
1397 .errstr = "invalid bpf_context access",
1398 .result = REJECT,
1399 },
1400 {
1401 "check skb->hash byte load not permitted 3",
1402 .insns = {
1403 BPF_MOV64_IMM(BPF_REG_0, 0),
1404 #if __BYTE_ORDER == __LITTLE_ENDIAN
1405 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1406 offsetof(struct __sk_buff, hash) + 3),
1407 #else
1408 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
1409 offsetof(struct __sk_buff, hash)),
1410 #endif
1411 BPF_EXIT_INSN(),
1412 },
1413 .errstr = "invalid bpf_context access",
1414 .result = REJECT,
1415 },
1416 {
1417 "check cb access: byte, wrong type",
1418 .insns = {
1419 BPF_MOV64_IMM(BPF_REG_0, 0),
1420 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
1421 offsetof(struct __sk_buff, cb[0])),
1422 BPF_EXIT_INSN(),
1423 },
1424 .errstr = "invalid bpf_context access",
1425 .result = REJECT,
1426 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
1427 },
1428 {
1429 "check cb access: half",
1430 .insns = {
1431 BPF_MOV64_IMM(BPF_REG_0, 0),
1432 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1433 offsetof(struct __sk_buff, cb[0])),
1434 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1435 offsetof(struct __sk_buff, cb[0]) + 2),
1436 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1437 offsetof(struct __sk_buff, cb[1])),
1438 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1439 offsetof(struct __sk_buff, cb[1]) + 2),
1440 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1441 offsetof(struct __sk_buff, cb[2])),
1442 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1443 offsetof(struct __sk_buff, cb[2]) + 2),
1444 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1445 offsetof(struct __sk_buff, cb[3])),
1446 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1447 offsetof(struct __sk_buff, cb[3]) + 2),
1448 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1449 offsetof(struct __sk_buff, cb[4])),
1450 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1451 offsetof(struct __sk_buff, cb[4]) + 2),
1452 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1453 offsetof(struct __sk_buff, cb[0])),
1454 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1455 offsetof(struct __sk_buff, cb[0]) + 2),
1456 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1457 offsetof(struct __sk_buff, cb[1])),
1458 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1459 offsetof(struct __sk_buff, cb[1]) + 2),
1460 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1461 offsetof(struct __sk_buff, cb[2])),
1462 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1463 offsetof(struct __sk_buff, cb[2]) + 2),
1464 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1465 offsetof(struct __sk_buff, cb[3])),
1466 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1467 offsetof(struct __sk_buff, cb[3]) + 2),
1468 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1469 offsetof(struct __sk_buff, cb[4])),
1470 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1471 offsetof(struct __sk_buff, cb[4]) + 2),
1472 BPF_EXIT_INSN(),
1473 },
1474 .result = ACCEPT,
1475 },
1476 {
1477 "check cb access: half, unaligned",
1478 .insns = {
1479 BPF_MOV64_IMM(BPF_REG_0, 0),
1480 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1481 offsetof(struct __sk_buff, cb[0]) + 1),
1482 BPF_EXIT_INSN(),
1483 },
1484 .errstr = "misaligned context access",
1485 .result = REJECT,
1486 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1487 },
1488 {
1489 "check __sk_buff->hash, offset 0, half store not permitted",
1490 .insns = {
1491 BPF_MOV64_IMM(BPF_REG_0, 0),
1492 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1493 offsetof(struct __sk_buff, hash)),
1494 BPF_EXIT_INSN(),
1495 },
1496 .errstr = "invalid bpf_context access",
1497 .result = REJECT,
1498 },
1499 {
1500 "check __sk_buff->tc_index, offset 2, half store not permitted",
1501 .insns = {
1502 BPF_MOV64_IMM(BPF_REG_0, 0),
1503 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1504 offsetof(struct __sk_buff, tc_index) + 2),
1505 BPF_EXIT_INSN(),
1506 },
1507 .errstr = "invalid bpf_context access",
1508 .result = REJECT,
1509 },
1510 {
1511 "check skb->hash half load permitted",
1512 .insns = {
1513 BPF_MOV64_IMM(BPF_REG_0, 0),
1514 #if __BYTE_ORDER == __LITTLE_ENDIAN
1515 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1516 offsetof(struct __sk_buff, hash)),
1517 #else
1518 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1519 offsetof(struct __sk_buff, hash) + 2),
1520 #endif
1521 BPF_EXIT_INSN(),
1522 },
1523 .result = ACCEPT,
1524 },
1525 {
1526 "check skb->hash half load not permitted",
1527 .insns = {
1528 BPF_MOV64_IMM(BPF_REG_0, 0),
1529 #if __BYTE_ORDER == __LITTLE_ENDIAN
1530 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1531 offsetof(struct __sk_buff, hash) + 2),
1532 #else
1533 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
1534 offsetof(struct __sk_buff, hash)),
1535 #endif
1536 BPF_EXIT_INSN(),
1537 },
1538 .errstr = "invalid bpf_context access",
1539 .result = REJECT,
1540 },
1541 {
1542 "check cb access: half, wrong type",
1543 .insns = {
1544 BPF_MOV64_IMM(BPF_REG_0, 0),
1545 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
1546 offsetof(struct __sk_buff, cb[0])),
1547 BPF_EXIT_INSN(),
1548 },
1549 .errstr = "invalid bpf_context access",
1550 .result = REJECT,
1551 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
1552 },
1553 {
1554 "check cb access: word",
1555 .insns = {
1556 BPF_MOV64_IMM(BPF_REG_0, 0),
1557 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1558 offsetof(struct __sk_buff, cb[0])),
1559 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1560 offsetof(struct __sk_buff, cb[1])),
1561 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1562 offsetof(struct __sk_buff, cb[2])),
1563 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1564 offsetof(struct __sk_buff, cb[3])),
1565 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1566 offsetof(struct __sk_buff, cb[4])),
1567 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1568 offsetof(struct __sk_buff, cb[0])),
1569 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1570 offsetof(struct __sk_buff, cb[1])),
1571 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1572 offsetof(struct __sk_buff, cb[2])),
1573 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1574 offsetof(struct __sk_buff, cb[3])),
1575 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1576 offsetof(struct __sk_buff, cb[4])),
1577 BPF_EXIT_INSN(),
1578 },
1579 .result = ACCEPT,
1580 },
1581 {
1582 "check cb access: word, unaligned 1",
1583 .insns = {
1584 BPF_MOV64_IMM(BPF_REG_0, 0),
1585 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1586 offsetof(struct __sk_buff, cb[0]) + 2),
1587 BPF_EXIT_INSN(),
1588 },
1589 .errstr = "misaligned context access",
1590 .result = REJECT,
1591 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1592 },
1593 {
1594 "check cb access: word, unaligned 2",
1595 .insns = {
1596 BPF_MOV64_IMM(BPF_REG_0, 0),
1597 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1598 offsetof(struct __sk_buff, cb[4]) + 1),
1599 BPF_EXIT_INSN(),
1600 },
1601 .errstr = "misaligned context access",
1602 .result = REJECT,
1603 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1604 },
1605 {
1606 "check cb access: word, unaligned 3",
1607 .insns = {
1608 BPF_MOV64_IMM(BPF_REG_0, 0),
1609 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1610 offsetof(struct __sk_buff, cb[4]) + 2),
1611 BPF_EXIT_INSN(),
1612 },
1613 .errstr = "misaligned context access",
1614 .result = REJECT,
1615 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1616 },
1617 {
1618 "check cb access: word, unaligned 4",
1619 .insns = {
1620 BPF_MOV64_IMM(BPF_REG_0, 0),
1621 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1622 offsetof(struct __sk_buff, cb[4]) + 3),
1623 BPF_EXIT_INSN(),
1624 },
1625 .errstr = "misaligned context access",
1626 .result = REJECT,
1627 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1628 },
1629 {
1630 "check cb access: double",
1631 .insns = {
1632 BPF_MOV64_IMM(BPF_REG_0, 0),
1633 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1634 offsetof(struct __sk_buff, cb[0])),
1635 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1636 offsetof(struct __sk_buff, cb[2])),
1637 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
1638 offsetof(struct __sk_buff, cb[0])),
1639 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
1640 offsetof(struct __sk_buff, cb[2])),
1641 BPF_EXIT_INSN(),
1642 },
1643 .result = ACCEPT,
1644 },
1645 {
1646 "check cb access: double, unaligned 1",
1647 .insns = {
1648 BPF_MOV64_IMM(BPF_REG_0, 0),
1649 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1650 offsetof(struct __sk_buff, cb[1])),
1651 BPF_EXIT_INSN(),
1652 },
1653 .errstr = "misaligned context access",
1654 .result = REJECT,
1655 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1656 },
1657 {
1658 "check cb access: double, unaligned 2",
1659 .insns = {
1660 BPF_MOV64_IMM(BPF_REG_0, 0),
1661 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1662 offsetof(struct __sk_buff, cb[3])),
1663 BPF_EXIT_INSN(),
1664 },
1665 .errstr = "misaligned context access",
1666 .result = REJECT,
1667 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1668 },
1669 {
1670 "check cb access: double, oob 1",
1671 .insns = {
1672 BPF_MOV64_IMM(BPF_REG_0, 0),
1673 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1674 offsetof(struct __sk_buff, cb[4])),
1675 BPF_EXIT_INSN(),
1676 },
1677 .errstr = "invalid bpf_context access",
1678 .result = REJECT,
1679 },
1680 {
1681 "check cb access: double, oob 2",
1682 .insns = {
1683 BPF_MOV64_IMM(BPF_REG_0, 0),
1684 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
1685 offsetof(struct __sk_buff, cb[4])),
1686 BPF_EXIT_INSN(),
1687 },
1688 .errstr = "invalid bpf_context access",
1689 .result = REJECT,
1690 },
1691 {
1692 "check __sk_buff->ifindex dw store not permitted",
1693 .insns = {
1694 BPF_MOV64_IMM(BPF_REG_0, 0),
1695 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1696 offsetof(struct __sk_buff, ifindex)),
1697 BPF_EXIT_INSN(),
1698 },
1699 .errstr = "invalid bpf_context access",
1700 .result = REJECT,
1701 },
1702 {
1703 "check __sk_buff->ifindex dw load not permitted",
1704 .insns = {
1705 BPF_MOV64_IMM(BPF_REG_0, 0),
1706 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
1707 offsetof(struct __sk_buff, ifindex)),
1708 BPF_EXIT_INSN(),
1709 },
1710 .errstr = "invalid bpf_context access",
1711 .result = REJECT,
1712 },
1713 {
1714 "check cb access: double, wrong type",
1715 .insns = {
1716 BPF_MOV64_IMM(BPF_REG_0, 0),
1717 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
1718 offsetof(struct __sk_buff, cb[0])),
1719 BPF_EXIT_INSN(),
1720 },
1721 .errstr = "invalid bpf_context access",
1722 .result = REJECT,
1723 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
1724 },
1725 {
1726 "check out of range skb->cb access",
1727 .insns = {
1728 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1729 offsetof(struct __sk_buff, cb[0]) + 256),
1730 BPF_EXIT_INSN(),
1731 },
1732 .errstr = "invalid bpf_context access",
1733 .errstr_unpriv = "",
1734 .result = REJECT,
1735 .prog_type = BPF_PROG_TYPE_SCHED_ACT,
1736 },
1737 {
1738 "write skb fields from socket prog",
1739 .insns = {
1740 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1741 offsetof(struct __sk_buff, cb[4])),
1742 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
1743 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1744 offsetof(struct __sk_buff, mark)),
1745 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1746 offsetof(struct __sk_buff, tc_index)),
1747 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
1748 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
1749 offsetof(struct __sk_buff, cb[0])),
1750 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
1751 offsetof(struct __sk_buff, cb[2])),
1752 BPF_EXIT_INSN(),
1753 },
1754 .result = ACCEPT,
1755 .errstr_unpriv = "R1 leaks addr",
1756 .result_unpriv = REJECT,
1757 },
1758 {
1759 "write skb fields from tc_cls_act prog",
1760 .insns = {
1761 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1762 offsetof(struct __sk_buff, cb[0])),
1763 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1764 offsetof(struct __sk_buff, mark)),
1765 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
1766 offsetof(struct __sk_buff, tc_index)),
1767 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1768 offsetof(struct __sk_buff, tc_index)),
1769 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
1770 offsetof(struct __sk_buff, cb[3])),
1771 BPF_EXIT_INSN(),
1772 },
1773 .errstr_unpriv = "",
1774 .result_unpriv = REJECT,
1775 .result = ACCEPT,
1776 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
1777 },
1778 {
1779 "PTR_TO_STACK store/load",
1780 .insns = {
1781 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1782 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10),
1783 BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c),
1784 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2),
1785 BPF_EXIT_INSN(),
1786 },
1787 .result = ACCEPT,
1788 },
1789 {
1790 "PTR_TO_STACK store/load - bad alignment on off",
1791 .insns = {
1792 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1793 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
1794 BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c),
1795 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2),
1796 BPF_EXIT_INSN(),
1797 },
1798 .result = REJECT,
1799 .errstr = "misaligned stack access off (0x0; 0x0)+-8+2 size 8",
1800 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1801 },
1802 {
1803 "PTR_TO_STACK store/load - bad alignment on reg",
1804 .insns = {
1805 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1806 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10),
1807 BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
1808 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
1809 BPF_EXIT_INSN(),
1810 },
1811 .result = REJECT,
1812 .errstr = "misaligned stack access off (0x0; 0x0)+-10+8 size 8",
1813 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
1814 },
1815 {
1816 "PTR_TO_STACK store/load - out of bounds low",
1817 .insns = {
1818 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1819 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000),
1820 BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
1821 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
1822 BPF_EXIT_INSN(),
1823 },
1824 .result = REJECT,
1825 .errstr = "invalid stack off=-79992 size=8",
1826 },
1827 {
1828 "PTR_TO_STACK store/load - out of bounds high",
1829 .insns = {
1830 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1831 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
1832 BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c),
1833 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
1834 BPF_EXIT_INSN(),
1835 },
1836 .result = REJECT,
1837 .errstr = "invalid stack off=0 size=8",
1838 },
1839 {
1840 "unpriv: return pointer",
1841 .insns = {
1842 BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
1843 BPF_EXIT_INSN(),
1844 },
1845 .result = ACCEPT,
1846 .result_unpriv = REJECT,
1847 .errstr_unpriv = "R0 leaks addr",
1848 },
1849 {
1850 "unpriv: add const to pointer",
1851 .insns = {
1852 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
1853 BPF_MOV64_IMM(BPF_REG_0, 0),
1854 BPF_EXIT_INSN(),
1855 },
1856 .result = ACCEPT,
1857 },
1858 {
1859 "unpriv: add pointer to pointer",
1860 .insns = {
1861 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10),
1862 BPF_MOV64_IMM(BPF_REG_0, 0),
1863 BPF_EXIT_INSN(),
1864 },
1865 .result = ACCEPT,
1866 .result_unpriv = REJECT,
1867 .errstr_unpriv = "R1 pointer += pointer",
1868 },
1869 {
1870 "unpriv: neg pointer",
1871 .insns = {
1872 BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0),
1873 BPF_MOV64_IMM(BPF_REG_0, 0),
1874 BPF_EXIT_INSN(),
1875 },
1876 .result = ACCEPT,
1877 .result_unpriv = REJECT,
1878 .errstr_unpriv = "R1 pointer arithmetic",
1879 },
1880 {
1881 "unpriv: cmp pointer with const",
1882 .insns = {
1883 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
1884 BPF_MOV64_IMM(BPF_REG_0, 0),
1885 BPF_EXIT_INSN(),
1886 },
1887 .result = ACCEPT,
1888 .result_unpriv = REJECT,
1889 .errstr_unpriv = "R1 pointer comparison",
1890 },
1891 {
1892 "unpriv: cmp pointer with pointer",
1893 .insns = {
1894 BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
1895 BPF_MOV64_IMM(BPF_REG_0, 0),
1896 BPF_EXIT_INSN(),
1897 },
1898 .result = ACCEPT,
1899 .result_unpriv = REJECT,
1900 .errstr_unpriv = "R10 pointer comparison",
1901 },
1902 {
1903 "unpriv: check that printk is disallowed",
1904 .insns = {
1905 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
1906 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
1907 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
1908 BPF_MOV64_IMM(BPF_REG_2, 8),
1909 BPF_MOV64_REG(BPF_REG_3, BPF_REG_1),
1910 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
1911 BPF_FUNC_trace_printk),
1912 BPF_MOV64_IMM(BPF_REG_0, 0),
1913 BPF_EXIT_INSN(),
1914 },
1915 .errstr_unpriv = "unknown func bpf_trace_printk#6",
1916 .result_unpriv = REJECT,
1917 .result = ACCEPT,
1918 },
1919 {
1920 "unpriv: pass pointer to helper function",
1921 .insns = {
1922 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
1923 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
1924 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
1925 BPF_LD_MAP_FD(BPF_REG_1, 0),
1926 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
1927 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
1928 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
1929 BPF_FUNC_map_update_elem),
1930 BPF_MOV64_IMM(BPF_REG_0, 0),
1931 BPF_EXIT_INSN(),
1932 },
1933 .fixup_map1 = { 3 },
1934 .errstr_unpriv = "R4 leaks addr",
1935 .result_unpriv = REJECT,
1936 .result = ACCEPT,
1937 },
1938 {
1939 "unpriv: indirectly pass pointer on stack to helper function",
1940 .insns = {
1941 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
1942 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
1943 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
1944 BPF_LD_MAP_FD(BPF_REG_1, 0),
1945 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
1946 BPF_FUNC_map_lookup_elem),
1947 BPF_MOV64_IMM(BPF_REG_0, 0),
1948 BPF_EXIT_INSN(),
1949 },
1950 .fixup_map1 = { 3 },
1951 .errstr = "invalid indirect read from stack off -8+0 size 8",
1952 .result = REJECT,
1953 },
1954 {
1955 "unpriv: mangle pointer on stack 1",
1956 .insns = {
1957 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
1958 BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0),
1959 BPF_MOV64_IMM(BPF_REG_0, 0),
1960 BPF_EXIT_INSN(),
1961 },
1962 .errstr_unpriv = "attempt to corrupt spilled",
1963 .result_unpriv = REJECT,
1964 .result = ACCEPT,
1965 },
1966 {
1967 "unpriv: mangle pointer on stack 2",
1968 .insns = {
1969 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
1970 BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0),
1971 BPF_MOV64_IMM(BPF_REG_0, 0),
1972 BPF_EXIT_INSN(),
1973 },
1974 .errstr_unpriv = "attempt to corrupt spilled",
1975 .result_unpriv = REJECT,
1976 .result = ACCEPT,
1977 },
1978 {
1979 "unpriv: read pointer from stack in small chunks",
1980 .insns = {
1981 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8),
1982 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8),
1983 BPF_MOV64_IMM(BPF_REG_0, 0),
1984 BPF_EXIT_INSN(),
1985 },
1986 .errstr = "invalid size",
1987 .result = REJECT,
1988 },
1989 {
1990 "unpriv: write pointer into ctx",
1991 .insns = {
1992 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0),
1993 BPF_MOV64_IMM(BPF_REG_0, 0),
1994 BPF_EXIT_INSN(),
1995 },
1996 .errstr_unpriv = "R1 leaks addr",
1997 .result_unpriv = REJECT,
1998 .errstr = "invalid bpf_context access",
1999 .result = REJECT,
2000 },
2001 {
2002 "unpriv: spill/fill of ctx",
2003 .insns = {
2004 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2005 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2006 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2007 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2008 BPF_MOV64_IMM(BPF_REG_0, 0),
2009 BPF_EXIT_INSN(),
2010 },
2011 .result = ACCEPT,
2012 },
2013 {
2014 "unpriv: spill/fill of ctx 2",
2015 .insns = {
2016 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2017 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2018 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2019 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2020 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2021 BPF_FUNC_get_hash_recalc),
2022 BPF_EXIT_INSN(),
2023 },
2024 .result = ACCEPT,
2025 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2026 },
2027 {
2028 "unpriv: spill/fill of ctx 3",
2029 .insns = {
2030 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2031 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2032 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2033 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0),
2034 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2035 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2036 BPF_FUNC_get_hash_recalc),
2037 BPF_EXIT_INSN(),
2038 },
2039 .result = REJECT,
2040 .errstr = "R1 type=fp expected=ctx",
2041 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2042 },
2043 {
2044 "unpriv: spill/fill of ctx 4",
2045 .insns = {
2046 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2047 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2048 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2049 BPF_MOV64_IMM(BPF_REG_0, 1),
2050 BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10,
2051 BPF_REG_0, -8, 0),
2052 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2053 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2054 BPF_FUNC_get_hash_recalc),
2055 BPF_EXIT_INSN(),
2056 },
2057 .result = REJECT,
2058 .errstr = "R1 type=inv expected=ctx",
2059 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2060 },
2061 {
2062 "unpriv: spill/fill of different pointers stx",
2063 .insns = {
2064 BPF_MOV64_IMM(BPF_REG_3, 42),
2065 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2066 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2067 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
2068 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
2069 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
2070 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0),
2071 BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
2072 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2073 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2074 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
2075 offsetof(struct __sk_buff, mark)),
2076 BPF_MOV64_IMM(BPF_REG_0, 0),
2077 BPF_EXIT_INSN(),
2078 },
2079 .result = REJECT,
2080 .errstr = "same insn cannot be used with different pointers",
2081 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2082 },
2083 {
2084 "unpriv: spill/fill of different pointers ldx",
2085 .insns = {
2086 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2087 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2088 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
2089 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
2090 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2,
2091 -(__s32)offsetof(struct bpf_perf_event_data,
2092 sample_period) - 8),
2093 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0),
2094 BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
2095 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2096 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0),
2097 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1,
2098 offsetof(struct bpf_perf_event_data,
2099 sample_period)),
2100 BPF_MOV64_IMM(BPF_REG_0, 0),
2101 BPF_EXIT_INSN(),
2102 },
2103 .result = REJECT,
2104 .errstr = "same insn cannot be used with different pointers",
2105 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
2106 },
2107 {
2108 "unpriv: write pointer into map elem value",
2109 .insns = {
2110 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
2111 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
2112 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
2113 BPF_LD_MAP_FD(BPF_REG_1, 0),
2114 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2115 BPF_FUNC_map_lookup_elem),
2116 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
2117 BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
2118 BPF_EXIT_INSN(),
2119 },
2120 .fixup_map1 = { 3 },
2121 .errstr_unpriv = "R0 leaks addr",
2122 .result_unpriv = REJECT,
2123 .result = ACCEPT,
2124 },
2125 {
2126 "unpriv: partial copy of pointer",
2127 .insns = {
2128 BPF_MOV32_REG(BPF_REG_1, BPF_REG_10),
2129 BPF_MOV64_IMM(BPF_REG_0, 0),
2130 BPF_EXIT_INSN(),
2131 },
2132 .errstr_unpriv = "R10 partial copy",
2133 .result_unpriv = REJECT,
2134 .result = ACCEPT,
2135 },
2136 {
2137 "unpriv: pass pointer to tail_call",
2138 .insns = {
2139 BPF_MOV64_REG(BPF_REG_3, BPF_REG_1),
2140 BPF_LD_MAP_FD(BPF_REG_2, 0),
2141 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2142 BPF_FUNC_tail_call),
2143 BPF_MOV64_IMM(BPF_REG_0, 0),
2144 BPF_EXIT_INSN(),
2145 },
2146 .fixup_prog = { 1 },
2147 .errstr_unpriv = "R3 leaks addr into helper",
2148 .result_unpriv = REJECT,
2149 .result = ACCEPT,
2150 },
2151 {
2152 "unpriv: cmp map pointer with zero",
2153 .insns = {
2154 BPF_MOV64_IMM(BPF_REG_1, 0),
2155 BPF_LD_MAP_FD(BPF_REG_1, 0),
2156 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
2157 BPF_MOV64_IMM(BPF_REG_0, 0),
2158 BPF_EXIT_INSN(),
2159 },
2160 .fixup_map1 = { 1 },
2161 .errstr_unpriv = "R1 pointer comparison",
2162 .result_unpriv = REJECT,
2163 .result = ACCEPT,
2164 },
2165 {
2166 "unpriv: write into frame pointer",
2167 .insns = {
2168 BPF_MOV64_REG(BPF_REG_10, BPF_REG_1),
2169 BPF_MOV64_IMM(BPF_REG_0, 0),
2170 BPF_EXIT_INSN(),
2171 },
2172 .errstr = "frame pointer is read only",
2173 .result = REJECT,
2174 },
2175 {
2176 "unpriv: spill/fill frame pointer",
2177 .insns = {
2178 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2179 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2180 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0),
2181 BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0),
2182 BPF_MOV64_IMM(BPF_REG_0, 0),
2183 BPF_EXIT_INSN(),
2184 },
2185 .errstr = "frame pointer is read only",
2186 .result = REJECT,
2187 },
2188 {
2189 "unpriv: cmp of frame pointer",
2190 .insns = {
2191 BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0),
2192 BPF_MOV64_IMM(BPF_REG_0, 0),
2193 BPF_EXIT_INSN(),
2194 },
2195 .errstr_unpriv = "R10 pointer comparison",
2196 .result_unpriv = REJECT,
2197 .result = ACCEPT,
2198 },
2199 {
2200 "unpriv: adding of fp",
2201 .insns = {
2202 BPF_MOV64_IMM(BPF_REG_0, 0),
2203 BPF_MOV64_IMM(BPF_REG_1, 0),
2204 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10),
2205 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
2206 BPF_EXIT_INSN(),
2207 },
2208 .result = ACCEPT,
2209 },
2210 {
2211 "unpriv: cmp of stack pointer",
2212 .insns = {
2213 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
2214 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
2215 BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0),
2216 BPF_MOV64_IMM(BPF_REG_0, 0),
2217 BPF_EXIT_INSN(),
2218 },
2219 .errstr_unpriv = "R2 pointer comparison",
2220 .result_unpriv = REJECT,
2221 .result = ACCEPT,
2222 },
2223 {
2224 "stack pointer arithmetic",
2225 .insns = {
2226 BPF_MOV64_IMM(BPF_REG_1, 4),
2227 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
2228 BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
2229 BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10),
2230 BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10),
2231 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
2232 BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_1),
2233 BPF_ST_MEM(0, BPF_REG_2, 4, 0),
2234 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
2235 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
2236 BPF_ST_MEM(0, BPF_REG_2, 4, 0),
2237 BPF_MOV64_IMM(BPF_REG_0, 0),
2238 BPF_EXIT_INSN(),
2239 },
2240 .result = ACCEPT,
2241 },
2242 {
2243 "raw_stack: no skb_load_bytes",
2244 .insns = {
2245 BPF_MOV64_IMM(BPF_REG_2, 4),
2246 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2247 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2248 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2249 BPF_MOV64_IMM(BPF_REG_4, 8),
2250 /* Call to skb_load_bytes() omitted. */
2251 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2252 BPF_EXIT_INSN(),
2253 },
2254 .result = REJECT,
2255 .errstr = "invalid read from stack off -8+0 size 8",
2256 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2257 },
2258 {
2259 "raw_stack: skb_load_bytes, negative len",
2260 .insns = {
2261 BPF_MOV64_IMM(BPF_REG_2, 4),
2262 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2263 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2264 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2265 BPF_MOV64_IMM(BPF_REG_4, -8),
2266 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2267 BPF_FUNC_skb_load_bytes),
2268 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2269 BPF_EXIT_INSN(),
2270 },
2271 .result = REJECT,
2272 .errstr = "R4 min value is negative",
2273 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2274 },
2275 {
2276 "raw_stack: skb_load_bytes, negative len 2",
2277 .insns = {
2278 BPF_MOV64_IMM(BPF_REG_2, 4),
2279 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2280 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2281 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2282 BPF_MOV64_IMM(BPF_REG_4, ~0),
2283 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2284 BPF_FUNC_skb_load_bytes),
2285 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2286 BPF_EXIT_INSN(),
2287 },
2288 .result = REJECT,
2289 .errstr = "R4 min value is negative",
2290 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2291 },
2292 {
2293 "raw_stack: skb_load_bytes, zero len",
2294 .insns = {
2295 BPF_MOV64_IMM(BPF_REG_2, 4),
2296 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2297 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2298 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2299 BPF_MOV64_IMM(BPF_REG_4, 0),
2300 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2301 BPF_FUNC_skb_load_bytes),
2302 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2303 BPF_EXIT_INSN(),
2304 },
2305 .result = REJECT,
2306 .errstr = "invalid stack type R3",
2307 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2308 },
2309 {
2310 "raw_stack: skb_load_bytes, no init",
2311 .insns = {
2312 BPF_MOV64_IMM(BPF_REG_2, 4),
2313 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2314 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2315 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2316 BPF_MOV64_IMM(BPF_REG_4, 8),
2317 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2318 BPF_FUNC_skb_load_bytes),
2319 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2320 BPF_EXIT_INSN(),
2321 },
2322 .result = ACCEPT,
2323 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2324 },
2325 {
2326 "raw_stack: skb_load_bytes, init",
2327 .insns = {
2328 BPF_MOV64_IMM(BPF_REG_2, 4),
2329 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2330 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2331 BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe),
2332 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2333 BPF_MOV64_IMM(BPF_REG_4, 8),
2334 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2335 BPF_FUNC_skb_load_bytes),
2336 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2337 BPF_EXIT_INSN(),
2338 },
2339 .result = ACCEPT,
2340 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2341 },
2342 {
2343 "raw_stack: skb_load_bytes, spilled regs around bounds",
2344 .insns = {
2345 BPF_MOV64_IMM(BPF_REG_2, 4),
2346 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2347 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
2348 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
2349 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
2350 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2351 BPF_MOV64_IMM(BPF_REG_4, 8),
2352 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2353 BPF_FUNC_skb_load_bytes),
2354 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
2355 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
2356 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
2357 offsetof(struct __sk_buff, mark)),
2358 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
2359 offsetof(struct __sk_buff, priority)),
2360 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
2361 BPF_EXIT_INSN(),
2362 },
2363 .result = ACCEPT,
2364 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2365 },
2366 {
2367 "raw_stack: skb_load_bytes, spilled regs corruption",
2368 .insns = {
2369 BPF_MOV64_IMM(BPF_REG_2, 4),
2370 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2371 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8),
2372 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2373 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2374 BPF_MOV64_IMM(BPF_REG_4, 8),
2375 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2376 BPF_FUNC_skb_load_bytes),
2377 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2378 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
2379 offsetof(struct __sk_buff, mark)),
2380 BPF_EXIT_INSN(),
2381 },
2382 .result = REJECT,
2383 .errstr = "R0 invalid mem access 'inv'",
2384 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2385 },
2386 {
2387 "raw_stack: skb_load_bytes, spilled regs corruption 2",
2388 .insns = {
2389 BPF_MOV64_IMM(BPF_REG_2, 4),
2390 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2391 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
2392 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
2393 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2394 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
2395 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2396 BPF_MOV64_IMM(BPF_REG_4, 8),
2397 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2398 BPF_FUNC_skb_load_bytes),
2399 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
2400 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
2401 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0),
2402 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
2403 offsetof(struct __sk_buff, mark)),
2404 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
2405 offsetof(struct __sk_buff, priority)),
2406 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
2407 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3,
2408 offsetof(struct __sk_buff, pkt_type)),
2409 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
2410 BPF_EXIT_INSN(),
2411 },
2412 .result = REJECT,
2413 .errstr = "R3 invalid mem access 'inv'",
2414 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2415 },
2416 {
2417 "raw_stack: skb_load_bytes, spilled regs + data",
2418 .insns = {
2419 BPF_MOV64_IMM(BPF_REG_2, 4),
2420 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2421 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16),
2422 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8),
2423 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
2424 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8),
2425 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2426 BPF_MOV64_IMM(BPF_REG_4, 8),
2427 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2428 BPF_FUNC_skb_load_bytes),
2429 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8),
2430 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8),
2431 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0),
2432 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
2433 offsetof(struct __sk_buff, mark)),
2434 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2,
2435 offsetof(struct __sk_buff, priority)),
2436 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
2437 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
2438 BPF_EXIT_INSN(),
2439 },
2440 .result = ACCEPT,
2441 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2442 },
2443 {
2444 "raw_stack: skb_load_bytes, invalid access 1",
2445 .insns = {
2446 BPF_MOV64_IMM(BPF_REG_2, 4),
2447 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2448 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513),
2449 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2450 BPF_MOV64_IMM(BPF_REG_4, 8),
2451 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2452 BPF_FUNC_skb_load_bytes),
2453 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2454 BPF_EXIT_INSN(),
2455 },
2456 .result = REJECT,
2457 .errstr = "invalid stack type R3 off=-513 access_size=8",
2458 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2459 },
2460 {
2461 "raw_stack: skb_load_bytes, invalid access 2",
2462 .insns = {
2463 BPF_MOV64_IMM(BPF_REG_2, 4),
2464 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2465 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
2466 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2467 BPF_MOV64_IMM(BPF_REG_4, 8),
2468 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2469 BPF_FUNC_skb_load_bytes),
2470 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2471 BPF_EXIT_INSN(),
2472 },
2473 .result = REJECT,
2474 .errstr = "invalid stack type R3 off=-1 access_size=8",
2475 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2476 },
2477 {
2478 "raw_stack: skb_load_bytes, invalid access 3",
2479 .insns = {
2480 BPF_MOV64_IMM(BPF_REG_2, 4),
2481 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2482 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff),
2483 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2484 BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
2485 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2486 BPF_FUNC_skb_load_bytes),
2487 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2488 BPF_EXIT_INSN(),
2489 },
2490 .result = REJECT,
2491 .errstr = "R4 min value is negative",
2492 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2493 },
2494 {
2495 "raw_stack: skb_load_bytes, invalid access 4",
2496 .insns = {
2497 BPF_MOV64_IMM(BPF_REG_2, 4),
2498 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2499 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1),
2500 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2501 BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
2502 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2503 BPF_FUNC_skb_load_bytes),
2504 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2505 BPF_EXIT_INSN(),
2506 },
2507 .result = REJECT,
2508 .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'",
2509 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2510 },
2511 {
2512 "raw_stack: skb_load_bytes, invalid access 5",
2513 .insns = {
2514 BPF_MOV64_IMM(BPF_REG_2, 4),
2515 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2516 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
2517 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2518 BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff),
2519 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2520 BPF_FUNC_skb_load_bytes),
2521 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2522 BPF_EXIT_INSN(),
2523 },
2524 .result = REJECT,
2525 .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'",
2526 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2527 },
2528 {
2529 "raw_stack: skb_load_bytes, invalid access 6",
2530 .insns = {
2531 BPF_MOV64_IMM(BPF_REG_2, 4),
2532 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2533 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
2534 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2535 BPF_MOV64_IMM(BPF_REG_4, 0),
2536 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2537 BPF_FUNC_skb_load_bytes),
2538 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2539 BPF_EXIT_INSN(),
2540 },
2541 .result = REJECT,
2542 .errstr = "invalid stack type R3 off=-512 access_size=0",
2543 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2544 },
2545 {
2546 "raw_stack: skb_load_bytes, large access",
2547 .insns = {
2548 BPF_MOV64_IMM(BPF_REG_2, 4),
2549 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10),
2550 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512),
2551 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
2552 BPF_MOV64_IMM(BPF_REG_4, 512),
2553 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
2554 BPF_FUNC_skb_load_bytes),
2555 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
2556 BPF_EXIT_INSN(),
2557 },
2558 .result = ACCEPT,
2559 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2560 },
2561 {
2562 "direct packet access: test1",
2563 .insns = {
2564 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2565 offsetof(struct __sk_buff, data)),
2566 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2567 offsetof(struct __sk_buff, data_end)),
2568 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2569 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2570 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2571 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2572 BPF_MOV64_IMM(BPF_REG_0, 0),
2573 BPF_EXIT_INSN(),
2574 },
2575 .result = ACCEPT,
2576 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2577 },
2578 {
2579 "direct packet access: test2",
2580 .insns = {
2581 BPF_MOV64_IMM(BPF_REG_0, 1),
2582 BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,
2583 offsetof(struct __sk_buff, data_end)),
2584 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2585 offsetof(struct __sk_buff, data)),
2586 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
2587 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
2588 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15),
2589 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7),
2590 BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12),
2591 BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14),
2592 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2593 offsetof(struct __sk_buff, data)),
2594 BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4),
2595 BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
2596 BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 49),
2597 BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 49),
2598 BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
2599 BPF_MOV64_REG(BPF_REG_2, BPF_REG_3),
2600 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
2601 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
2602 offsetof(struct __sk_buff, data_end)),
2603 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
2604 BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4),
2605 BPF_MOV64_IMM(BPF_REG_0, 0),
2606 BPF_EXIT_INSN(),
2607 },
2608 .result = ACCEPT,
2609 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2610 },
2611 {
2612 "direct packet access: test3",
2613 .insns = {
2614 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2615 offsetof(struct __sk_buff, data)),
2616 BPF_MOV64_IMM(BPF_REG_0, 0),
2617 BPF_EXIT_INSN(),
2618 },
2619 .errstr = "invalid bpf_context access off=76",
2620 .result = REJECT,
2621 .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
2622 },
2623 {
2624 "direct packet access: test4 (write)",
2625 .insns = {
2626 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2627 offsetof(struct __sk_buff, data)),
2628 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2629 offsetof(struct __sk_buff, data_end)),
2630 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2631 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2632 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2633 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
2634 BPF_MOV64_IMM(BPF_REG_0, 0),
2635 BPF_EXIT_INSN(),
2636 },
2637 .result = ACCEPT,
2638 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2639 },
2640 {
2641 "direct packet access: test5 (pkt_end >= reg, good access)",
2642 .insns = {
2643 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2644 offsetof(struct __sk_buff, data)),
2645 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2646 offsetof(struct __sk_buff, data_end)),
2647 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2648 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2649 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2),
2650 BPF_MOV64_IMM(BPF_REG_0, 1),
2651 BPF_EXIT_INSN(),
2652 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2653 BPF_MOV64_IMM(BPF_REG_0, 0),
2654 BPF_EXIT_INSN(),
2655 },
2656 .result = ACCEPT,
2657 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2658 },
2659 {
2660 "direct packet access: test6 (pkt_end >= reg, bad access)",
2661 .insns = {
2662 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2663 offsetof(struct __sk_buff, data)),
2664 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2665 offsetof(struct __sk_buff, data_end)),
2666 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2667 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2668 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3),
2669 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2670 BPF_MOV64_IMM(BPF_REG_0, 1),
2671 BPF_EXIT_INSN(),
2672 BPF_MOV64_IMM(BPF_REG_0, 0),
2673 BPF_EXIT_INSN(),
2674 },
2675 .errstr = "invalid access to packet",
2676 .result = REJECT,
2677 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2678 },
2679 {
2680 "direct packet access: test7 (pkt_end >= reg, both accesses)",
2681 .insns = {
2682 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2683 offsetof(struct __sk_buff, data)),
2684 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2685 offsetof(struct __sk_buff, data_end)),
2686 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2687 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2688 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3),
2689 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2690 BPF_MOV64_IMM(BPF_REG_0, 1),
2691 BPF_EXIT_INSN(),
2692 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2693 BPF_MOV64_IMM(BPF_REG_0, 0),
2694 BPF_EXIT_INSN(),
2695 },
2696 .errstr = "invalid access to packet",
2697 .result = REJECT,
2698 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2699 },
2700 {
2701 "direct packet access: test8 (double test, variant 1)",
2702 .insns = {
2703 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2704 offsetof(struct __sk_buff, data)),
2705 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2706 offsetof(struct __sk_buff, data_end)),
2707 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2708 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2709 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4),
2710 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2711 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2712 BPF_MOV64_IMM(BPF_REG_0, 1),
2713 BPF_EXIT_INSN(),
2714 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2715 BPF_MOV64_IMM(BPF_REG_0, 0),
2716 BPF_EXIT_INSN(),
2717 },
2718 .result = ACCEPT,
2719 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2720 },
2721 {
2722 "direct packet access: test9 (double test, variant 2)",
2723 .insns = {
2724 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2725 offsetof(struct __sk_buff, data)),
2726 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2727 offsetof(struct __sk_buff, data_end)),
2728 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2729 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2730 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2),
2731 BPF_MOV64_IMM(BPF_REG_0, 1),
2732 BPF_EXIT_INSN(),
2733 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2734 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2735 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
2736 BPF_MOV64_IMM(BPF_REG_0, 0),
2737 BPF_EXIT_INSN(),
2738 },
2739 .result = ACCEPT,
2740 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2741 },
2742 {
2743 "direct packet access: test10 (write invalid)",
2744 .insns = {
2745 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2746 offsetof(struct __sk_buff, data)),
2747 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2748 offsetof(struct __sk_buff, data_end)),
2749 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2750 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2751 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
2752 BPF_MOV64_IMM(BPF_REG_0, 0),
2753 BPF_EXIT_INSN(),
2754 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
2755 BPF_MOV64_IMM(BPF_REG_0, 0),
2756 BPF_EXIT_INSN(),
2757 },
2758 .errstr = "invalid access to packet",
2759 .result = REJECT,
2760 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2761 },
2762 {
2763 "direct packet access: test11 (shift, good access)",
2764 .insns = {
2765 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2766 offsetof(struct __sk_buff, data)),
2767 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2768 offsetof(struct __sk_buff, data_end)),
2769 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2770 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
2771 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8),
2772 BPF_MOV64_IMM(BPF_REG_3, 144),
2773 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
2774 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23),
2775 BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3),
2776 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
2777 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
2778 BPF_MOV64_IMM(BPF_REG_0, 1),
2779 BPF_EXIT_INSN(),
2780 BPF_MOV64_IMM(BPF_REG_0, 0),
2781 BPF_EXIT_INSN(),
2782 },
2783 .result = ACCEPT,
2784 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2785 },
2786 {
2787 "direct packet access: test12 (and, good access)",
2788 .insns = {
2789 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2790 offsetof(struct __sk_buff, data)),
2791 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2792 offsetof(struct __sk_buff, data_end)),
2793 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2794 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
2795 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8),
2796 BPF_MOV64_IMM(BPF_REG_3, 144),
2797 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
2798 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23),
2799 BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15),
2800 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
2801 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
2802 BPF_MOV64_IMM(BPF_REG_0, 1),
2803 BPF_EXIT_INSN(),
2804 BPF_MOV64_IMM(BPF_REG_0, 0),
2805 BPF_EXIT_INSN(),
2806 },
2807 .result = ACCEPT,
2808 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2809 },
2810 {
2811 "direct packet access: test13 (branches, good access)",
2812 .insns = {
2813 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2814 offsetof(struct __sk_buff, data)),
2815 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2816 offsetof(struct __sk_buff, data_end)),
2817 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2818 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
2819 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13),
2820 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2821 offsetof(struct __sk_buff, mark)),
2822 BPF_MOV64_IMM(BPF_REG_4, 1),
2823 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2),
2824 BPF_MOV64_IMM(BPF_REG_3, 14),
2825 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
2826 BPF_MOV64_IMM(BPF_REG_3, 24),
2827 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
2828 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23),
2829 BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15),
2830 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
2831 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
2832 BPF_MOV64_IMM(BPF_REG_0, 1),
2833 BPF_EXIT_INSN(),
2834 BPF_MOV64_IMM(BPF_REG_0, 0),
2835 BPF_EXIT_INSN(),
2836 },
2837 .result = ACCEPT,
2838 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2839 },
2840 {
2841 "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)",
2842 .insns = {
2843 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2844 offsetof(struct __sk_buff, data)),
2845 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2846 offsetof(struct __sk_buff, data_end)),
2847 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2848 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22),
2849 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7),
2850 BPF_MOV64_IMM(BPF_REG_5, 12),
2851 BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4),
2852 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
2853 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
2854 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0),
2855 BPF_MOV64_IMM(BPF_REG_0, 1),
2856 BPF_EXIT_INSN(),
2857 BPF_MOV64_IMM(BPF_REG_0, 0),
2858 BPF_EXIT_INSN(),
2859 },
2860 .result = ACCEPT,
2861 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2862 },
2863 {
2864 "direct packet access: test15 (spill with xadd)",
2865 .insns = {
2866 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2867 offsetof(struct __sk_buff, data)),
2868 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2869 offsetof(struct __sk_buff, data_end)),
2870 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2871 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2872 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8),
2873 BPF_MOV64_IMM(BPF_REG_5, 4096),
2874 BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
2875 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
2876 BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
2877 BPF_STX_XADD(BPF_DW, BPF_REG_4, BPF_REG_5, 0),
2878 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
2879 BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0),
2880 BPF_MOV64_IMM(BPF_REG_0, 0),
2881 BPF_EXIT_INSN(),
2882 },
2883 .errstr = "R2 invalid mem access 'inv'",
2884 .result = REJECT,
2885 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2886 },
2887 {
2888 "direct packet access: test16 (arith on data_end)",
2889 .insns = {
2890 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2891 offsetof(struct __sk_buff, data)),
2892 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2893 offsetof(struct __sk_buff, data_end)),
2894 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2895 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2896 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 16),
2897 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2898 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
2899 BPF_MOV64_IMM(BPF_REG_0, 0),
2900 BPF_EXIT_INSN(),
2901 },
2902 .errstr = "invalid access to packet",
2903 .result = REJECT,
2904 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2905 },
2906 {
2907 "direct packet access: test17 (pruning, alignment)",
2908 .insns = {
2909 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2910 offsetof(struct __sk_buff, data)),
2911 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2912 offsetof(struct __sk_buff, data_end)),
2913 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
2914 offsetof(struct __sk_buff, mark)),
2915 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2916 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 14),
2917 BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 1, 4),
2918 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2919 BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, -4),
2920 BPF_MOV64_IMM(BPF_REG_0, 0),
2921 BPF_EXIT_INSN(),
2922 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
2923 BPF_JMP_A(-6),
2924 },
2925 .errstr = "misaligned packet access off 2+(0x0; 0x0)+15+-4 size 4",
2926 .result = REJECT,
2927 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2928 .flags = F_LOAD_WITH_STRICT_ALIGNMENT,
2929 },
2930 {
2931 "direct packet access: test18 (imm += pkt_ptr, 1)",
2932 .insns = {
2933 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2934 offsetof(struct __sk_buff, data)),
2935 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2936 offsetof(struct __sk_buff, data_end)),
2937 BPF_MOV64_IMM(BPF_REG_0, 8),
2938 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
2939 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
2940 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
2941 BPF_MOV64_IMM(BPF_REG_0, 0),
2942 BPF_EXIT_INSN(),
2943 },
2944 .result = ACCEPT,
2945 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2946 },
2947 {
2948 "direct packet access: test19 (imm += pkt_ptr, 2)",
2949 .insns = {
2950 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2951 offsetof(struct __sk_buff, data)),
2952 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2953 offsetof(struct __sk_buff, data_end)),
2954 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2955 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2956 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
2957 BPF_MOV64_IMM(BPF_REG_4, 4),
2958 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
2959 BPF_STX_MEM(BPF_B, BPF_REG_4, BPF_REG_4, 0),
2960 BPF_MOV64_IMM(BPF_REG_0, 0),
2961 BPF_EXIT_INSN(),
2962 },
2963 .result = ACCEPT,
2964 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2965 },
2966 {
2967 "direct packet access: test20 (x += pkt_ptr, 1)",
2968 .insns = {
2969 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2970 offsetof(struct __sk_buff, data)),
2971 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2972 offsetof(struct __sk_buff, data_end)),
2973 BPF_MOV64_IMM(BPF_REG_0, 0xffffffff),
2974 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
2975 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
2976 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0x7fff),
2977 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
2978 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
2979 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
2980 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1),
2981 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
2982 BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0),
2983 BPF_MOV64_IMM(BPF_REG_0, 0),
2984 BPF_EXIT_INSN(),
2985 },
2986 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
2987 .result = ACCEPT,
2988 },
2989 {
2990 "direct packet access: test21 (x += pkt_ptr, 2)",
2991 .insns = {
2992 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
2993 offsetof(struct __sk_buff, data)),
2994 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
2995 offsetof(struct __sk_buff, data_end)),
2996 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
2997 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
2998 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 9),
2999 BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
3000 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -8),
3001 BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
3002 BPF_ALU64_IMM(BPF_AND, BPF_REG_4, 0x7fff),
3003 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
3004 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
3005 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1),
3006 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1),
3007 BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0),
3008 BPF_MOV64_IMM(BPF_REG_0, 0),
3009 BPF_EXIT_INSN(),
3010 },
3011 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3012 .result = ACCEPT,
3013 },
3014 {
3015 "direct packet access: test22 (x += pkt_ptr, 3)",
3016 .insns = {
3017 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3018 offsetof(struct __sk_buff, data)),
3019 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3020 offsetof(struct __sk_buff, data_end)),
3021 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3022 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3023 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8),
3024 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_3, -16),
3025 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_10, -16),
3026 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 11),
3027 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8),
3028 BPF_MOV64_IMM(BPF_REG_4, 0xffffffff),
3029 BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_4, -8),
3030 BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
3031 BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 49),
3032 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2),
3033 BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
3034 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
3035 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
3036 BPF_MOV64_IMM(BPF_REG_2, 1),
3037 BPF_STX_MEM(BPF_H, BPF_REG_4, BPF_REG_2, 0),
3038 BPF_MOV64_IMM(BPF_REG_0, 0),
3039 BPF_EXIT_INSN(),
3040 },
3041 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3042 .result = ACCEPT,
3043 },
3044 {
3045 "direct packet access: test23 (x += pkt_ptr, 4)",
3046 .insns = {
3047 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3048 offsetof(struct __sk_buff, data)),
3049 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3050 offsetof(struct __sk_buff, data_end)),
3051 BPF_MOV64_IMM(BPF_REG_0, 0xffffffff),
3052 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
3053 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
3054 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffff),
3055 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3056 BPF_MOV64_IMM(BPF_REG_0, 31),
3057 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4),
3058 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
3059 BPF_MOV64_REG(BPF_REG_5, BPF_REG_0),
3060 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0xffff - 1),
3061 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
3062 BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0),
3063 BPF_MOV64_IMM(BPF_REG_0, 0),
3064 BPF_EXIT_INSN(),
3065 },
3066 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3067 .result = REJECT,
3068 .errstr = "invalid access to packet, off=0 size=8, R5(id=1,off=0,r=0)",
3069 },
3070 {
3071 "direct packet access: test24 (x += pkt_ptr, 5)",
3072 .insns = {
3073 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3074 offsetof(struct __sk_buff, data)),
3075 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3076 offsetof(struct __sk_buff, data_end)),
3077 BPF_MOV64_IMM(BPF_REG_0, 0xffffffff),
3078 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
3079 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
3080 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xff),
3081 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3082 BPF_MOV64_IMM(BPF_REG_0, 64),
3083 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4),
3084 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
3085 BPF_MOV64_REG(BPF_REG_5, BPF_REG_0),
3086 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7fff - 1),
3087 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
3088 BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0),
3089 BPF_MOV64_IMM(BPF_REG_0, 0),
3090 BPF_EXIT_INSN(),
3091 },
3092 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3093 .result = ACCEPT,
3094 },
3095 {
3096 "direct packet access: test25 (marking on <, good access)",
3097 .insns = {
3098 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3099 offsetof(struct __sk_buff, data)),
3100 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3101 offsetof(struct __sk_buff, data_end)),
3102 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3103 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3104 BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 2),
3105 BPF_MOV64_IMM(BPF_REG_0, 0),
3106 BPF_EXIT_INSN(),
3107 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
3108 BPF_JMP_IMM(BPF_JA, 0, 0, -4),
3109 },
3110 .result = ACCEPT,
3111 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3112 },
3113 {
3114 "direct packet access: test26 (marking on <, bad access)",
3115 .insns = {
3116 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3117 offsetof(struct __sk_buff, data)),
3118 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3119 offsetof(struct __sk_buff, data_end)),
3120 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3121 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3122 BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 3),
3123 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
3124 BPF_MOV64_IMM(BPF_REG_0, 0),
3125 BPF_EXIT_INSN(),
3126 BPF_JMP_IMM(BPF_JA, 0, 0, -3),
3127 },
3128 .result = REJECT,
3129 .errstr = "invalid access to packet",
3130 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3131 },
3132 {
3133 "direct packet access: test27 (marking on <=, good access)",
3134 .insns = {
3135 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3136 offsetof(struct __sk_buff, data)),
3137 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3138 offsetof(struct __sk_buff, data_end)),
3139 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3140 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3141 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 1),
3142 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
3143 BPF_MOV64_IMM(BPF_REG_0, 1),
3144 BPF_EXIT_INSN(),
3145 },
3146 .result = ACCEPT,
3147 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3148 },
3149 {
3150 "direct packet access: test28 (marking on <=, bad access)",
3151 .insns = {
3152 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3153 offsetof(struct __sk_buff, data)),
3154 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3155 offsetof(struct __sk_buff, data_end)),
3156 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
3157 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
3158 BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 2),
3159 BPF_MOV64_IMM(BPF_REG_0, 1),
3160 BPF_EXIT_INSN(),
3161 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
3162 BPF_JMP_IMM(BPF_JA, 0, 0, -4),
3163 },
3164 .result = REJECT,
3165 .errstr = "invalid access to packet",
3166 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3167 },
3168 {
3169 "helper access to packet: test1, valid packet_ptr range",
3170 .insns = {
3171 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3172 offsetof(struct xdp_md, data)),
3173 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3174 offsetof(struct xdp_md, data_end)),
3175 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
3176 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
3177 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
3178 BPF_LD_MAP_FD(BPF_REG_1, 0),
3179 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
3180 BPF_MOV64_IMM(BPF_REG_4, 0),
3181 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3182 BPF_FUNC_map_update_elem),
3183 BPF_MOV64_IMM(BPF_REG_0, 0),
3184 BPF_EXIT_INSN(),
3185 },
3186 .fixup_map1 = { 5 },
3187 .result_unpriv = ACCEPT,
3188 .result = ACCEPT,
3189 .prog_type = BPF_PROG_TYPE_XDP,
3190 },
3191 {
3192 "helper access to packet: test2, unchecked packet_ptr",
3193 .insns = {
3194 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3195 offsetof(struct xdp_md, data)),
3196 BPF_LD_MAP_FD(BPF_REG_1, 0),
3197 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3198 BPF_FUNC_map_lookup_elem),
3199 BPF_MOV64_IMM(BPF_REG_0, 0),
3200 BPF_EXIT_INSN(),
3201 },
3202 .fixup_map1 = { 1 },
3203 .result = REJECT,
3204 .errstr = "invalid access to packet",
3205 .prog_type = BPF_PROG_TYPE_XDP,
3206 },
3207 {
3208 "helper access to packet: test3, variable add",
3209 .insns = {
3210 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3211 offsetof(struct xdp_md, data)),
3212 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3213 offsetof(struct xdp_md, data_end)),
3214 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3215 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
3216 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10),
3217 BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
3218 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3219 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
3220 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
3221 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
3222 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
3223 BPF_LD_MAP_FD(BPF_REG_1, 0),
3224 BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
3225 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3226 BPF_FUNC_map_lookup_elem),
3227 BPF_MOV64_IMM(BPF_REG_0, 0),
3228 BPF_EXIT_INSN(),
3229 },
3230 .fixup_map1 = { 11 },
3231 .result = ACCEPT,
3232 .prog_type = BPF_PROG_TYPE_XDP,
3233 },
3234 {
3235 "helper access to packet: test4, packet_ptr with bad range",
3236 .insns = {
3237 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3238 offsetof(struct xdp_md, data)),
3239 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3240 offsetof(struct xdp_md, data_end)),
3241 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3242 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
3243 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
3244 BPF_MOV64_IMM(BPF_REG_0, 0),
3245 BPF_EXIT_INSN(),
3246 BPF_LD_MAP_FD(BPF_REG_1, 0),
3247 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3248 BPF_FUNC_map_lookup_elem),
3249 BPF_MOV64_IMM(BPF_REG_0, 0),
3250 BPF_EXIT_INSN(),
3251 },
3252 .fixup_map1 = { 7 },
3253 .result = REJECT,
3254 .errstr = "invalid access to packet",
3255 .prog_type = BPF_PROG_TYPE_XDP,
3256 },
3257 {
3258 "helper access to packet: test5, packet_ptr with too short range",
3259 .insns = {
3260 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3261 offsetof(struct xdp_md, data)),
3262 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3263 offsetof(struct xdp_md, data_end)),
3264 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
3265 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3266 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
3267 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
3268 BPF_LD_MAP_FD(BPF_REG_1, 0),
3269 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3270 BPF_FUNC_map_lookup_elem),
3271 BPF_MOV64_IMM(BPF_REG_0, 0),
3272 BPF_EXIT_INSN(),
3273 },
3274 .fixup_map1 = { 6 },
3275 .result = REJECT,
3276 .errstr = "invalid access to packet",
3277 .prog_type = BPF_PROG_TYPE_XDP,
3278 },
3279 {
3280 "helper access to packet: test6, cls valid packet_ptr range",
3281 .insns = {
3282 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3283 offsetof(struct __sk_buff, data)),
3284 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3285 offsetof(struct __sk_buff, data_end)),
3286 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
3287 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
3288 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5),
3289 BPF_LD_MAP_FD(BPF_REG_1, 0),
3290 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
3291 BPF_MOV64_IMM(BPF_REG_4, 0),
3292 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3293 BPF_FUNC_map_update_elem),
3294 BPF_MOV64_IMM(BPF_REG_0, 0),
3295 BPF_EXIT_INSN(),
3296 },
3297 .fixup_map1 = { 5 },
3298 .result = ACCEPT,
3299 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3300 },
3301 {
3302 "helper access to packet: test7, cls unchecked packet_ptr",
3303 .insns = {
3304 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3305 offsetof(struct __sk_buff, data)),
3306 BPF_LD_MAP_FD(BPF_REG_1, 0),
3307 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3308 BPF_FUNC_map_lookup_elem),
3309 BPF_MOV64_IMM(BPF_REG_0, 0),
3310 BPF_EXIT_INSN(),
3311 },
3312 .fixup_map1 = { 1 },
3313 .result = REJECT,
3314 .errstr = "invalid access to packet",
3315 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3316 },
3317 {
3318 "helper access to packet: test8, cls variable add",
3319 .insns = {
3320 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3321 offsetof(struct __sk_buff, data)),
3322 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3323 offsetof(struct __sk_buff, data_end)),
3324 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3325 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
3326 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10),
3327 BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0),
3328 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3329 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5),
3330 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4),
3331 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8),
3332 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4),
3333 BPF_LD_MAP_FD(BPF_REG_1, 0),
3334 BPF_MOV64_REG(BPF_REG_2, BPF_REG_4),
3335 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3336 BPF_FUNC_map_lookup_elem),
3337 BPF_MOV64_IMM(BPF_REG_0, 0),
3338 BPF_EXIT_INSN(),
3339 },
3340 .fixup_map1 = { 11 },
3341 .result = ACCEPT,
3342 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3343 },
3344 {
3345 "helper access to packet: test9, cls packet_ptr with bad range",
3346 .insns = {
3347 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3348 offsetof(struct __sk_buff, data)),
3349 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3350 offsetof(struct __sk_buff, data_end)),
3351 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3352 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
3353 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2),
3354 BPF_MOV64_IMM(BPF_REG_0, 0),
3355 BPF_EXIT_INSN(),
3356 BPF_LD_MAP_FD(BPF_REG_1, 0),
3357 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3358 BPF_FUNC_map_lookup_elem),
3359 BPF_MOV64_IMM(BPF_REG_0, 0),
3360 BPF_EXIT_INSN(),
3361 },
3362 .fixup_map1 = { 7 },
3363 .result = REJECT,
3364 .errstr = "invalid access to packet",
3365 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3366 },
3367 {
3368 "helper access to packet: test10, cls packet_ptr with too short range",
3369 .insns = {
3370 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
3371 offsetof(struct __sk_buff, data)),
3372 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
3373 offsetof(struct __sk_buff, data_end)),
3374 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
3375 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
3376 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7),
3377 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3),
3378 BPF_LD_MAP_FD(BPF_REG_1, 0),
3379 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3380 BPF_FUNC_map_lookup_elem),
3381 BPF_MOV64_IMM(BPF_REG_0, 0),
3382 BPF_EXIT_INSN(),
3383 },
3384 .fixup_map1 = { 6 },
3385 .result = REJECT,
3386 .errstr = "invalid access to packet",
3387 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3388 },
3389 {
3390 "helper access to packet: test11, cls unsuitable helper 1",
3391 .insns = {
3392 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3393 offsetof(struct __sk_buff, data)),
3394 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3395 offsetof(struct __sk_buff, data_end)),
3396 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3397 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
3398 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7),
3399 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4),
3400 BPF_MOV64_IMM(BPF_REG_2, 0),
3401 BPF_MOV64_IMM(BPF_REG_4, 42),
3402 BPF_MOV64_IMM(BPF_REG_5, 0),
3403 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3404 BPF_FUNC_skb_store_bytes),
3405 BPF_MOV64_IMM(BPF_REG_0, 0),
3406 BPF_EXIT_INSN(),
3407 },
3408 .result = REJECT,
3409 .errstr = "helper access to the packet",
3410 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3411 },
3412 {
3413 "helper access to packet: test12, cls unsuitable helper 2",
3414 .insns = {
3415 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3416 offsetof(struct __sk_buff, data)),
3417 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3418 offsetof(struct __sk_buff, data_end)),
3419 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6),
3420 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8),
3421 BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3),
3422 BPF_MOV64_IMM(BPF_REG_2, 0),
3423 BPF_MOV64_IMM(BPF_REG_4, 4),
3424 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3425 BPF_FUNC_skb_load_bytes),
3426 BPF_MOV64_IMM(BPF_REG_0, 0),
3427 BPF_EXIT_INSN(),
3428 },
3429 .result = REJECT,
3430 .errstr = "helper access to the packet",
3431 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3432 },
3433 {
3434 "helper access to packet: test13, cls helper ok",
3435 .insns = {
3436 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3437 offsetof(struct __sk_buff, data)),
3438 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3439 offsetof(struct __sk_buff, data_end)),
3440 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3441 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3442 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3443 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3444 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3445 BPF_MOV64_IMM(BPF_REG_2, 4),
3446 BPF_MOV64_IMM(BPF_REG_3, 0),
3447 BPF_MOV64_IMM(BPF_REG_4, 0),
3448 BPF_MOV64_IMM(BPF_REG_5, 0),
3449 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3450 BPF_FUNC_csum_diff),
3451 BPF_MOV64_IMM(BPF_REG_0, 0),
3452 BPF_EXIT_INSN(),
3453 },
3454 .result = ACCEPT,
3455 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3456 },
3457 {
3458 "helper access to packet: test14, cls helper ok sub",
3459 .insns = {
3460 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3461 offsetof(struct __sk_buff, data)),
3462 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3463 offsetof(struct __sk_buff, data_end)),
3464 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3465 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3466 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3467 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3468 BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4),
3469 BPF_MOV64_IMM(BPF_REG_2, 4),
3470 BPF_MOV64_IMM(BPF_REG_3, 0),
3471 BPF_MOV64_IMM(BPF_REG_4, 0),
3472 BPF_MOV64_IMM(BPF_REG_5, 0),
3473 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3474 BPF_FUNC_csum_diff),
3475 BPF_MOV64_IMM(BPF_REG_0, 0),
3476 BPF_EXIT_INSN(),
3477 },
3478 .result = ACCEPT,
3479 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3480 },
3481 {
3482 "helper access to packet: test15, cls helper fail sub",
3483 .insns = {
3484 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3485 offsetof(struct __sk_buff, data)),
3486 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3487 offsetof(struct __sk_buff, data_end)),
3488 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3489 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3490 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3491 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3492 BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 12),
3493 BPF_MOV64_IMM(BPF_REG_2, 4),
3494 BPF_MOV64_IMM(BPF_REG_3, 0),
3495 BPF_MOV64_IMM(BPF_REG_4, 0),
3496 BPF_MOV64_IMM(BPF_REG_5, 0),
3497 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3498 BPF_FUNC_csum_diff),
3499 BPF_MOV64_IMM(BPF_REG_0, 0),
3500 BPF_EXIT_INSN(),
3501 },
3502 .result = REJECT,
3503 .errstr = "invalid access to packet",
3504 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3505 },
3506 {
3507 "helper access to packet: test16, cls helper fail range 1",
3508 .insns = {
3509 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3510 offsetof(struct __sk_buff, data)),
3511 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3512 offsetof(struct __sk_buff, data_end)),
3513 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3514 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3515 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3516 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3517 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3518 BPF_MOV64_IMM(BPF_REG_2, 8),
3519 BPF_MOV64_IMM(BPF_REG_3, 0),
3520 BPF_MOV64_IMM(BPF_REG_4, 0),
3521 BPF_MOV64_IMM(BPF_REG_5, 0),
3522 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3523 BPF_FUNC_csum_diff),
3524 BPF_MOV64_IMM(BPF_REG_0, 0),
3525 BPF_EXIT_INSN(),
3526 },
3527 .result = REJECT,
3528 .errstr = "invalid access to packet",
3529 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3530 },
3531 {
3532 "helper access to packet: test17, cls helper fail range 2",
3533 .insns = {
3534 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3535 offsetof(struct __sk_buff, data)),
3536 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3537 offsetof(struct __sk_buff, data_end)),
3538 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3539 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3540 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3541 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3542 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3543 BPF_MOV64_IMM(BPF_REG_2, -9),
3544 BPF_MOV64_IMM(BPF_REG_3, 0),
3545 BPF_MOV64_IMM(BPF_REG_4, 0),
3546 BPF_MOV64_IMM(BPF_REG_5, 0),
3547 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3548 BPF_FUNC_csum_diff),
3549 BPF_MOV64_IMM(BPF_REG_0, 0),
3550 BPF_EXIT_INSN(),
3551 },
3552 .result = REJECT,
3553 .errstr = "R2 min value is negative",
3554 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3555 },
3556 {
3557 "helper access to packet: test18, cls helper fail range 3",
3558 .insns = {
3559 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3560 offsetof(struct __sk_buff, data)),
3561 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3562 offsetof(struct __sk_buff, data_end)),
3563 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3564 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3565 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3566 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3567 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3568 BPF_MOV64_IMM(BPF_REG_2, ~0),
3569 BPF_MOV64_IMM(BPF_REG_3, 0),
3570 BPF_MOV64_IMM(BPF_REG_4, 0),
3571 BPF_MOV64_IMM(BPF_REG_5, 0),
3572 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3573 BPF_FUNC_csum_diff),
3574 BPF_MOV64_IMM(BPF_REG_0, 0),
3575 BPF_EXIT_INSN(),
3576 },
3577 .result = REJECT,
3578 .errstr = "R2 min value is negative",
3579 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3580 },
3581 {
3582 "helper access to packet: test19, cls helper fail range zero",
3583 .insns = {
3584 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3585 offsetof(struct __sk_buff, data)),
3586 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3587 offsetof(struct __sk_buff, data_end)),
3588 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3589 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3590 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3591 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3592 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3593 BPF_MOV64_IMM(BPF_REG_2, 0),
3594 BPF_MOV64_IMM(BPF_REG_3, 0),
3595 BPF_MOV64_IMM(BPF_REG_4, 0),
3596 BPF_MOV64_IMM(BPF_REG_5, 0),
3597 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3598 BPF_FUNC_csum_diff),
3599 BPF_MOV64_IMM(BPF_REG_0, 0),
3600 BPF_EXIT_INSN(),
3601 },
3602 .result = REJECT,
3603 .errstr = "invalid access to packet",
3604 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3605 },
3606 {
3607 "helper access to packet: test20, pkt end as input",
3608 .insns = {
3609 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3610 offsetof(struct __sk_buff, data)),
3611 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3612 offsetof(struct __sk_buff, data_end)),
3613 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3614 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3615 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3616 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3617 BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
3618 BPF_MOV64_IMM(BPF_REG_2, 4),
3619 BPF_MOV64_IMM(BPF_REG_3, 0),
3620 BPF_MOV64_IMM(BPF_REG_4, 0),
3621 BPF_MOV64_IMM(BPF_REG_5, 0),
3622 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3623 BPF_FUNC_csum_diff),
3624 BPF_MOV64_IMM(BPF_REG_0, 0),
3625 BPF_EXIT_INSN(),
3626 },
3627 .result = REJECT,
3628 .errstr = "R1 type=pkt_end expected=fp",
3629 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3630 },
3631 {
3632 "helper access to packet: test21, wrong reg",
3633 .insns = {
3634 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
3635 offsetof(struct __sk_buff, data)),
3636 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
3637 offsetof(struct __sk_buff, data_end)),
3638 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
3639 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
3640 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7),
3641 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6),
3642 BPF_MOV64_IMM(BPF_REG_2, 4),
3643 BPF_MOV64_IMM(BPF_REG_3, 0),
3644 BPF_MOV64_IMM(BPF_REG_4, 0),
3645 BPF_MOV64_IMM(BPF_REG_5, 0),
3646 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3647 BPF_FUNC_csum_diff),
3648 BPF_MOV64_IMM(BPF_REG_0, 0),
3649 BPF_EXIT_INSN(),
3650 },
3651 .result = REJECT,
3652 .errstr = "invalid access to packet",
3653 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
3654 },
3655 {
3656 "valid map access into an array with a constant",
3657 .insns = {
3658 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3659 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3660 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3661 BPF_LD_MAP_FD(BPF_REG_1, 0),
3662 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3663 BPF_FUNC_map_lookup_elem),
3664 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3665 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3666 offsetof(struct test_val, foo)),
3667 BPF_EXIT_INSN(),
3668 },
3669 .fixup_map2 = { 3 },
3670 .errstr_unpriv = "R0 leaks addr",
3671 .result_unpriv = REJECT,
3672 .result = ACCEPT,
3673 },
3674 {
3675 "valid map access into an array with a register",
3676 .insns = {
3677 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3678 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3679 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3680 BPF_LD_MAP_FD(BPF_REG_1, 0),
3681 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3682 BPF_FUNC_map_lookup_elem),
3683 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
3684 BPF_MOV64_IMM(BPF_REG_1, 4),
3685 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
3686 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3687 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3688 offsetof(struct test_val, foo)),
3689 BPF_EXIT_INSN(),
3690 },
3691 .fixup_map2 = { 3 },
3692 .errstr_unpriv = "R0 leaks addr",
3693 .result_unpriv = REJECT,
3694 .result = ACCEPT,
3695 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3696 },
3697 {
3698 "valid map access into an array with a variable",
3699 .insns = {
3700 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3701 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3702 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3703 BPF_LD_MAP_FD(BPF_REG_1, 0),
3704 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3705 BPF_FUNC_map_lookup_elem),
3706 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
3707 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
3708 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3),
3709 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
3710 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3711 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3712 offsetof(struct test_val, foo)),
3713 BPF_EXIT_INSN(),
3714 },
3715 .fixup_map2 = { 3 },
3716 .errstr_unpriv = "R0 leaks addr",
3717 .result_unpriv = REJECT,
3718 .result = ACCEPT,
3719 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3720 },
3721 {
3722 "valid map access into an array with a signed variable",
3723 .insns = {
3724 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3725 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3726 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3727 BPF_LD_MAP_FD(BPF_REG_1, 0),
3728 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3729 BPF_FUNC_map_lookup_elem),
3730 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
3731 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
3732 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1),
3733 BPF_MOV32_IMM(BPF_REG_1, 0),
3734 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
3735 BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
3736 BPF_MOV32_IMM(BPF_REG_1, 0),
3737 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
3738 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3739 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3740 offsetof(struct test_val, foo)),
3741 BPF_EXIT_INSN(),
3742 },
3743 .fixup_map2 = { 3 },
3744 .errstr_unpriv = "R0 leaks addr",
3745 .result_unpriv = REJECT,
3746 .result = ACCEPT,
3747 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3748 },
3749 {
3750 "invalid map access into an array with a constant",
3751 .insns = {
3752 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3753 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3754 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3755 BPF_LD_MAP_FD(BPF_REG_1, 0),
3756 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3757 BPF_FUNC_map_lookup_elem),
3758 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3759 BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2,
3760 offsetof(struct test_val, foo)),
3761 BPF_EXIT_INSN(),
3762 },
3763 .fixup_map2 = { 3 },
3764 .errstr = "invalid access to map value, value_size=48 off=48 size=8",
3765 .result = REJECT,
3766 },
3767 {
3768 "invalid map access into an array with a register",
3769 .insns = {
3770 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3771 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3772 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3773 BPF_LD_MAP_FD(BPF_REG_1, 0),
3774 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3775 BPF_FUNC_map_lookup_elem),
3776 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
3777 BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1),
3778 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
3779 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3780 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3781 offsetof(struct test_val, foo)),
3782 BPF_EXIT_INSN(),
3783 },
3784 .fixup_map2 = { 3 },
3785 .errstr = "R0 min value is outside of the array range",
3786 .result = REJECT,
3787 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3788 },
3789 {
3790 "invalid map access into an array with a variable",
3791 .insns = {
3792 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3793 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3794 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3795 BPF_LD_MAP_FD(BPF_REG_1, 0),
3796 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3797 BPF_FUNC_map_lookup_elem),
3798 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
3799 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
3800 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
3801 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3802 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3803 offsetof(struct test_val, foo)),
3804 BPF_EXIT_INSN(),
3805 },
3806 .fixup_map2 = { 3 },
3807 .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map",
3808 .result = REJECT,
3809 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3810 },
3811 {
3812 "invalid map access into an array with no floor check",
3813 .insns = {
3814 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3815 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3816 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3817 BPF_LD_MAP_FD(BPF_REG_1, 0),
3818 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3819 BPF_FUNC_map_lookup_elem),
3820 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
3821 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
3822 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
3823 BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
3824 BPF_MOV32_IMM(BPF_REG_1, 0),
3825 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
3826 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3827 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3828 offsetof(struct test_val, foo)),
3829 BPF_EXIT_INSN(),
3830 },
3831 .fixup_map2 = { 3 },
3832 .errstr_unpriv = "R0 leaks addr",
3833 .errstr = "R0 unbounded memory access",
3834 .result_unpriv = REJECT,
3835 .result = REJECT,
3836 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3837 },
3838 {
3839 "invalid map access into an array with a invalid max check",
3840 .insns = {
3841 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3842 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3843 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3844 BPF_LD_MAP_FD(BPF_REG_1, 0),
3845 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3846 BPF_FUNC_map_lookup_elem),
3847 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
3848 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
3849 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1),
3850 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
3851 BPF_MOV32_IMM(BPF_REG_1, 0),
3852 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
3853 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
3854 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
3855 offsetof(struct test_val, foo)),
3856 BPF_EXIT_INSN(),
3857 },
3858 .fixup_map2 = { 3 },
3859 .errstr_unpriv = "R0 leaks addr",
3860 .errstr = "invalid access to map value, value_size=48 off=44 size=8",
3861 .result_unpriv = REJECT,
3862 .result = REJECT,
3863 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3864 },
3865 {
3866 "invalid map access into an array with a invalid max check",
3867 .insns = {
3868 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3869 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3870 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3871 BPF_LD_MAP_FD(BPF_REG_1, 0),
3872 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3873 BPF_FUNC_map_lookup_elem),
3874 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
3875 BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
3876 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
3877 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3878 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3879 BPF_LD_MAP_FD(BPF_REG_1, 0),
3880 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3881 BPF_FUNC_map_lookup_elem),
3882 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
3883 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
3884 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0,
3885 offsetof(struct test_val, foo)),
3886 BPF_EXIT_INSN(),
3887 },
3888 .fixup_map2 = { 3, 11 },
3889 .errstr_unpriv = "R0 pointer += pointer",
3890 .errstr = "R0 invalid mem access 'inv'",
3891 .result_unpriv = REJECT,
3892 .result = REJECT,
3893 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
3894 },
3895 {
3896 "multiple registers share map_lookup_elem result",
3897 .insns = {
3898 BPF_MOV64_IMM(BPF_REG_1, 10),
3899 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3900 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3901 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3902 BPF_LD_MAP_FD(BPF_REG_1, 0),
3903 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3904 BPF_FUNC_map_lookup_elem),
3905 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3906 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3907 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3908 BPF_EXIT_INSN(),
3909 },
3910 .fixup_map1 = { 4 },
3911 .result = ACCEPT,
3912 .prog_type = BPF_PROG_TYPE_SCHED_CLS
3913 },
3914 {
3915 "alu ops on ptr_to_map_value_or_null, 1",
3916 .insns = {
3917 BPF_MOV64_IMM(BPF_REG_1, 10),
3918 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3919 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3920 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3921 BPF_LD_MAP_FD(BPF_REG_1, 0),
3922 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3923 BPF_FUNC_map_lookup_elem),
3924 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3925 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -2),
3926 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2),
3927 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3928 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3929 BPF_EXIT_INSN(),
3930 },
3931 .fixup_map1 = { 4 },
3932 .errstr = "R4 invalid mem access",
3933 .result = REJECT,
3934 .prog_type = BPF_PROG_TYPE_SCHED_CLS
3935 },
3936 {
3937 "alu ops on ptr_to_map_value_or_null, 2",
3938 .insns = {
3939 BPF_MOV64_IMM(BPF_REG_1, 10),
3940 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3941 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3942 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3943 BPF_LD_MAP_FD(BPF_REG_1, 0),
3944 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3945 BPF_FUNC_map_lookup_elem),
3946 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3947 BPF_ALU64_IMM(BPF_AND, BPF_REG_4, -1),
3948 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3949 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3950 BPF_EXIT_INSN(),
3951 },
3952 .fixup_map1 = { 4 },
3953 .errstr = "R4 invalid mem access",
3954 .result = REJECT,
3955 .prog_type = BPF_PROG_TYPE_SCHED_CLS
3956 },
3957 {
3958 "alu ops on ptr_to_map_value_or_null, 3",
3959 .insns = {
3960 BPF_MOV64_IMM(BPF_REG_1, 10),
3961 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3962 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3963 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3964 BPF_LD_MAP_FD(BPF_REG_1, 0),
3965 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3966 BPF_FUNC_map_lookup_elem),
3967 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3968 BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 1),
3969 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3970 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3971 BPF_EXIT_INSN(),
3972 },
3973 .fixup_map1 = { 4 },
3974 .errstr = "R4 invalid mem access",
3975 .result = REJECT,
3976 .prog_type = BPF_PROG_TYPE_SCHED_CLS
3977 },
3978 {
3979 "invalid memory access with multiple map_lookup_elem calls",
3980 .insns = {
3981 BPF_MOV64_IMM(BPF_REG_1, 10),
3982 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
3983 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
3984 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
3985 BPF_LD_MAP_FD(BPF_REG_1, 0),
3986 BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
3987 BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
3988 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3989 BPF_FUNC_map_lookup_elem),
3990 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
3991 BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
3992 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
3993 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
3994 BPF_FUNC_map_lookup_elem),
3995 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
3996 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
3997 BPF_EXIT_INSN(),
3998 },
3999 .fixup_map1 = { 4 },
4000 .result = REJECT,
4001 .errstr = "R4 !read_ok",
4002 .prog_type = BPF_PROG_TYPE_SCHED_CLS
4003 },
4004 {
4005 "valid indirect map_lookup_elem access with 2nd lookup in branch",
4006 .insns = {
4007 BPF_MOV64_IMM(BPF_REG_1, 10),
4008 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
4009 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4010 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4011 BPF_LD_MAP_FD(BPF_REG_1, 0),
4012 BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
4013 BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
4014 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
4015 BPF_FUNC_map_lookup_elem),
4016 BPF_MOV64_IMM(BPF_REG_2, 10),
4017 BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3),
4018 BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
4019 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
4020 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
4021 BPF_FUNC_map_lookup_elem),
4022 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0),
4023 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
4024 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0),
4025 BPF_EXIT_INSN(),
4026 },
4027 .fixup_map1 = { 4 },
4028 .result = ACCEPT,
4029 .prog_type = BPF_PROG_TYPE_SCHED_CLS
4030 },
4031 {
4032 "invalid map access from else condition",
4033 .insns = {
4034 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
4035 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4036 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4037 BPF_LD_MAP_FD(BPF_REG_1, 0),
4038 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
4039 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4040 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
4041 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1),
4042 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
4043 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
4044 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
4045 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)),
4046 BPF_EXIT_INSN(),
4047 },
4048 .fixup_map2 = { 3 },
4049 .errstr = "R0 unbounded memory access",
4050 .result = REJECT,
4051 .errstr_unpriv = "R0 leaks addr",
4052 .result_unpriv = REJECT,
4053 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
4054 },
4055 {
4056 "constant register |= constant should keep constant type",
4057 .insns = {
4058 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
4059 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
4060 BPF_MOV64_IMM(BPF_REG_2, 34),
4061 BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13),
4062 BPF_MOV64_IMM(BPF_REG_3, 0),
4063 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4064 BPF_EXIT_INSN(),
4065 },
4066 .result = ACCEPT,
4067 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4068 },
4069 {
4070 "constant register |= constant should not bypass stack boundary checks",
4071 .insns = {
4072 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
4073 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
4074 BPF_MOV64_IMM(BPF_REG_2, 34),
4075 BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24),
4076 BPF_MOV64_IMM(BPF_REG_3, 0),
4077 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4078 BPF_EXIT_INSN(),
4079 },
4080 .errstr = "invalid stack type R1 off=-48 access_size=58",
4081 .result = REJECT,
4082 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4083 },
4084 {
4085 "constant register |= constant register should keep constant type",
4086 .insns = {
4087 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
4088 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
4089 BPF_MOV64_IMM(BPF_REG_2, 34),
4090 BPF_MOV64_IMM(BPF_REG_4, 13),
4091 BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),
4092 BPF_MOV64_IMM(BPF_REG_3, 0),
4093 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4094 BPF_EXIT_INSN(),
4095 },
4096 .result = ACCEPT,
4097 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4098 },
4099 {
4100 "constant register |= constant register should not bypass stack boundary checks",
4101 .insns = {
4102 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
4103 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48),
4104 BPF_MOV64_IMM(BPF_REG_2, 34),
4105 BPF_MOV64_IMM(BPF_REG_4, 24),
4106 BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4),
4107 BPF_MOV64_IMM(BPF_REG_3, 0),
4108 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4109 BPF_EXIT_INSN(),
4110 },
4111 .errstr = "invalid stack type R1 off=-48 access_size=58",
4112 .result = REJECT,
4113 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4114 },
4115 {
4116 "invalid direct packet write for LWT_IN",
4117 .insns = {
4118 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4119 offsetof(struct __sk_buff, data)),
4120 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4121 offsetof(struct __sk_buff, data_end)),
4122 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4123 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4124 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4125 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
4126 BPF_MOV64_IMM(BPF_REG_0, 0),
4127 BPF_EXIT_INSN(),
4128 },
4129 .errstr = "cannot write into packet",
4130 .result = REJECT,
4131 .prog_type = BPF_PROG_TYPE_LWT_IN,
4132 },
4133 {
4134 "invalid direct packet write for LWT_OUT",
4135 .insns = {
4136 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4137 offsetof(struct __sk_buff, data)),
4138 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4139 offsetof(struct __sk_buff, data_end)),
4140 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4141 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4142 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4143 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
4144 BPF_MOV64_IMM(BPF_REG_0, 0),
4145 BPF_EXIT_INSN(),
4146 },
4147 .errstr = "cannot write into packet",
4148 .result = REJECT,
4149 .prog_type = BPF_PROG_TYPE_LWT_OUT,
4150 },
4151 {
4152 "direct packet write for LWT_XMIT",
4153 .insns = {
4154 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4155 offsetof(struct __sk_buff, data)),
4156 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4157 offsetof(struct __sk_buff, data_end)),
4158 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4159 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4160 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4161 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
4162 BPF_MOV64_IMM(BPF_REG_0, 0),
4163 BPF_EXIT_INSN(),
4164 },
4165 .result = ACCEPT,
4166 .prog_type = BPF_PROG_TYPE_LWT_XMIT,
4167 },
4168 {
4169 "direct packet read for LWT_IN",
4170 .insns = {
4171 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4172 offsetof(struct __sk_buff, data)),
4173 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4174 offsetof(struct __sk_buff, data_end)),
4175 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4176 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4177 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4178 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
4179 BPF_MOV64_IMM(BPF_REG_0, 0),
4180 BPF_EXIT_INSN(),
4181 },
4182 .result = ACCEPT,
4183 .prog_type = BPF_PROG_TYPE_LWT_IN,
4184 },
4185 {
4186 "direct packet read for LWT_OUT",
4187 .insns = {
4188 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4189 offsetof(struct __sk_buff, data)),
4190 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4191 offsetof(struct __sk_buff, data_end)),
4192 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4193 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4194 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4195 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
4196 BPF_MOV64_IMM(BPF_REG_0, 0),
4197 BPF_EXIT_INSN(),
4198 },
4199 .result = ACCEPT,
4200 .prog_type = BPF_PROG_TYPE_LWT_OUT,
4201 },
4202 {
4203 "direct packet read for LWT_XMIT",
4204 .insns = {
4205 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4206 offsetof(struct __sk_buff, data)),
4207 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4208 offsetof(struct __sk_buff, data_end)),
4209 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4210 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4211 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
4212 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
4213 BPF_MOV64_IMM(BPF_REG_0, 0),
4214 BPF_EXIT_INSN(),
4215 },
4216 .result = ACCEPT,
4217 .prog_type = BPF_PROG_TYPE_LWT_XMIT,
4218 },
4219 {
4220 "overlapping checks for direct packet access",
4221 .insns = {
4222 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
4223 offsetof(struct __sk_buff, data)),
4224 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
4225 offsetof(struct __sk_buff, data_end)),
4226 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
4227 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
4228 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4),
4229 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
4230 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
4231 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
4232 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6),
4233 BPF_MOV64_IMM(BPF_REG_0, 0),
4234 BPF_EXIT_INSN(),
4235 },
4236 .result = ACCEPT,
4237 .prog_type = BPF_PROG_TYPE_LWT_XMIT,
4238 },
4239 {
4240 "invalid access of tc_classid for LWT_IN",
4241 .insns = {
4242 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
4243 offsetof(struct __sk_buff, tc_classid)),
4244 BPF_EXIT_INSN(),
4245 },
4246 .result = REJECT,
4247 .errstr = "invalid bpf_context access",
4248 },
4249 {
4250 "invalid access of tc_classid for LWT_OUT",
4251 .insns = {
4252 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
4253 offsetof(struct __sk_buff, tc_classid)),
4254 BPF_EXIT_INSN(),
4255 },
4256 .result = REJECT,
4257 .errstr = "invalid bpf_context access",
4258 },
4259 {
4260 "invalid access of tc_classid for LWT_XMIT",
4261 .insns = {
4262 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
4263 offsetof(struct __sk_buff, tc_classid)),
4264 BPF_EXIT_INSN(),
4265 },
4266 .result = REJECT,
4267 .errstr = "invalid bpf_context access",
4268 },
4269 {
4270 "leak pointer into ctx 1",
4271 .insns = {
4272 BPF_MOV64_IMM(BPF_REG_0, 0),
4273 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
4274 offsetof(struct __sk_buff, cb[0])),
4275 BPF_LD_MAP_FD(BPF_REG_2, 0),
4276 BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_2,
4277 offsetof(struct __sk_buff, cb[0])),
4278 BPF_EXIT_INSN(),
4279 },
4280 .fixup_map1 = { 2 },
4281 .errstr_unpriv = "R2 leaks addr into mem",
4282 .result_unpriv = REJECT,
4283 .result = ACCEPT,
4284 },
4285 {
4286 "leak pointer into ctx 2",
4287 .insns = {
4288 BPF_MOV64_IMM(BPF_REG_0, 0),
4289 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
4290 offsetof(struct __sk_buff, cb[0])),
4291 BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_10,
4292 offsetof(struct __sk_buff, cb[0])),
4293 BPF_EXIT_INSN(),
4294 },
4295 .errstr_unpriv = "R10 leaks addr into mem",
4296 .result_unpriv = REJECT,
4297 .result = ACCEPT,
4298 },
4299 {
4300 "leak pointer into ctx 3",
4301 .insns = {
4302 BPF_MOV64_IMM(BPF_REG_0, 0),
4303 BPF_LD_MAP_FD(BPF_REG_2, 0),
4304 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2,
4305 offsetof(struct __sk_buff, cb[0])),
4306 BPF_EXIT_INSN(),
4307 },
4308 .fixup_map1 = { 1 },
4309 .errstr_unpriv = "R2 leaks addr into ctx",
4310 .result_unpriv = REJECT,
4311 .result = ACCEPT,
4312 },
4313 {
4314 "leak pointer into map val",
4315 .insns = {
4316 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
4317 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
4318 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4319 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4320 BPF_LD_MAP_FD(BPF_REG_1, 0),
4321 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
4322 BPF_FUNC_map_lookup_elem),
4323 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
4324 BPF_MOV64_IMM(BPF_REG_3, 0),
4325 BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
4326 BPF_STX_XADD(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
4327 BPF_MOV64_IMM(BPF_REG_0, 0),
4328 BPF_EXIT_INSN(),
4329 },
4330 .fixup_map1 = { 4 },
4331 .errstr_unpriv = "R6 leaks addr into mem",
4332 .result_unpriv = REJECT,
4333 .result = ACCEPT,
4334 },
4335 {
4336 "helper access to map: full range",
4337 .insns = {
4338 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4339 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4340 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4341 BPF_LD_MAP_FD(BPF_REG_1, 0),
4342 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4343 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4344 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4345 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
4346 BPF_MOV64_IMM(BPF_REG_3, 0),
4347 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4348 BPF_EXIT_INSN(),
4349 },
4350 .fixup_map2 = { 3 },
4351 .result = ACCEPT,
4352 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4353 },
4354 {
4355 "helper access to map: partial range",
4356 .insns = {
4357 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4358 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4359 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4360 BPF_LD_MAP_FD(BPF_REG_1, 0),
4361 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4362 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4363 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4364 BPF_MOV64_IMM(BPF_REG_2, 8),
4365 BPF_MOV64_IMM(BPF_REG_3, 0),
4366 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4367 BPF_EXIT_INSN(),
4368 },
4369 .fixup_map2 = { 3 },
4370 .result = ACCEPT,
4371 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4372 },
4373 {
4374 "helper access to map: empty range",
4375 .insns = {
4376 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4377 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4378 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4379 BPF_LD_MAP_FD(BPF_REG_1, 0),
4380 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4381 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4382 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4383 BPF_MOV64_IMM(BPF_REG_2, 0),
4384 BPF_MOV64_IMM(BPF_REG_3, 0),
4385 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4386 BPF_EXIT_INSN(),
4387 },
4388 .fixup_map2 = { 3 },
4389 .errstr = "invalid access to map value, value_size=48 off=0 size=0",
4390 .result = REJECT,
4391 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4392 },
4393 {
4394 "helper access to map: out-of-bound range",
4395 .insns = {
4396 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4397 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4398 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4399 BPF_LD_MAP_FD(BPF_REG_1, 0),
4400 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4401 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4402 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4403 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8),
4404 BPF_MOV64_IMM(BPF_REG_3, 0),
4405 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4406 BPF_EXIT_INSN(),
4407 },
4408 .fixup_map2 = { 3 },
4409 .errstr = "invalid access to map value, value_size=48 off=0 size=56",
4410 .result = REJECT,
4411 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4412 },
4413 {
4414 "helper access to map: negative range",
4415 .insns = {
4416 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4417 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4418 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4419 BPF_LD_MAP_FD(BPF_REG_1, 0),
4420 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4421 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4422 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4423 BPF_MOV64_IMM(BPF_REG_2, -8),
4424 BPF_MOV64_IMM(BPF_REG_3, 0),
4425 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4426 BPF_EXIT_INSN(),
4427 },
4428 .fixup_map2 = { 3 },
4429 .errstr = "R2 min value is negative",
4430 .result = REJECT,
4431 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4432 },
4433 {
4434 "helper access to adjusted map (via const imm): full range",
4435 .insns = {
4436 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4437 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4438 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4439 BPF_LD_MAP_FD(BPF_REG_1, 0),
4440 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4441 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4442 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4443 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4444 offsetof(struct test_val, foo)),
4445 BPF_MOV64_IMM(BPF_REG_2,
4446 sizeof(struct test_val) -
4447 offsetof(struct test_val, foo)),
4448 BPF_MOV64_IMM(BPF_REG_3, 0),
4449 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4450 BPF_EXIT_INSN(),
4451 },
4452 .fixup_map2 = { 3 },
4453 .result = ACCEPT,
4454 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4455 },
4456 {
4457 "helper access to adjusted map (via const imm): partial range",
4458 .insns = {
4459 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4460 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4461 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4462 BPF_LD_MAP_FD(BPF_REG_1, 0),
4463 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4464 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4465 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4466 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4467 offsetof(struct test_val, foo)),
4468 BPF_MOV64_IMM(BPF_REG_2, 8),
4469 BPF_MOV64_IMM(BPF_REG_3, 0),
4470 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4471 BPF_EXIT_INSN(),
4472 },
4473 .fixup_map2 = { 3 },
4474 .result = ACCEPT,
4475 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4476 },
4477 {
4478 "helper access to adjusted map (via const imm): empty range",
4479 .insns = {
4480 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4481 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4482 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4483 BPF_LD_MAP_FD(BPF_REG_1, 0),
4484 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4485 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4486 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4487 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4488 offsetof(struct test_val, foo)),
4489 BPF_MOV64_IMM(BPF_REG_2, 0),
4490 BPF_MOV64_IMM(BPF_REG_3, 0),
4491 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4492 BPF_EXIT_INSN(),
4493 },
4494 .fixup_map2 = { 3 },
4495 .errstr = "invalid access to map value, value_size=48 off=4 size=0",
4496 .result = REJECT,
4497 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4498 },
4499 {
4500 "helper access to adjusted map (via const imm): out-of-bound range",
4501 .insns = {
4502 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4503 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4504 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4505 BPF_LD_MAP_FD(BPF_REG_1, 0),
4506 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4507 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4508 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4509 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4510 offsetof(struct test_val, foo)),
4511 BPF_MOV64_IMM(BPF_REG_2,
4512 sizeof(struct test_val) -
4513 offsetof(struct test_val, foo) + 8),
4514 BPF_MOV64_IMM(BPF_REG_3, 0),
4515 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4516 BPF_EXIT_INSN(),
4517 },
4518 .fixup_map2 = { 3 },
4519 .errstr = "invalid access to map value, value_size=48 off=4 size=52",
4520 .result = REJECT,
4521 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4522 },
4523 {
4524 "helper access to adjusted map (via const imm): negative range (> adjustment)",
4525 .insns = {
4526 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4527 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4528 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4529 BPF_LD_MAP_FD(BPF_REG_1, 0),
4530 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4531 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4532 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4533 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4534 offsetof(struct test_val, foo)),
4535 BPF_MOV64_IMM(BPF_REG_2, -8),
4536 BPF_MOV64_IMM(BPF_REG_3, 0),
4537 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4538 BPF_EXIT_INSN(),
4539 },
4540 .fixup_map2 = { 3 },
4541 .errstr = "R2 min value is negative",
4542 .result = REJECT,
4543 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4544 },
4545 {
4546 "helper access to adjusted map (via const imm): negative range (< adjustment)",
4547 .insns = {
4548 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4549 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4550 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4551 BPF_LD_MAP_FD(BPF_REG_1, 0),
4552 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4553 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
4554 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4555 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
4556 offsetof(struct test_val, foo)),
4557 BPF_MOV64_IMM(BPF_REG_2, -1),
4558 BPF_MOV64_IMM(BPF_REG_3, 0),
4559 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4560 BPF_EXIT_INSN(),
4561 },
4562 .fixup_map2 = { 3 },
4563 .errstr = "R2 min value is negative",
4564 .result = REJECT,
4565 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4566 },
4567 {
4568 "helper access to adjusted map (via const reg): full range",
4569 .insns = {
4570 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4571 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4572 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4573 BPF_LD_MAP_FD(BPF_REG_1, 0),
4574 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4575 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4576 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4577 BPF_MOV64_IMM(BPF_REG_3,
4578 offsetof(struct test_val, foo)),
4579 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4580 BPF_MOV64_IMM(BPF_REG_2,
4581 sizeof(struct test_val) -
4582 offsetof(struct test_val, foo)),
4583 BPF_MOV64_IMM(BPF_REG_3, 0),
4584 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4585 BPF_EXIT_INSN(),
4586 },
4587 .fixup_map2 = { 3 },
4588 .result = ACCEPT,
4589 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4590 },
4591 {
4592 "helper access to adjusted map (via const reg): partial range",
4593 .insns = {
4594 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4595 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4596 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4597 BPF_LD_MAP_FD(BPF_REG_1, 0),
4598 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4599 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4600 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4601 BPF_MOV64_IMM(BPF_REG_3,
4602 offsetof(struct test_val, foo)),
4603 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4604 BPF_MOV64_IMM(BPF_REG_2, 8),
4605 BPF_MOV64_IMM(BPF_REG_3, 0),
4606 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4607 BPF_EXIT_INSN(),
4608 },
4609 .fixup_map2 = { 3 },
4610 .result = ACCEPT,
4611 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4612 },
4613 {
4614 "helper access to adjusted map (via const reg): empty range",
4615 .insns = {
4616 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4617 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4618 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4619 BPF_LD_MAP_FD(BPF_REG_1, 0),
4620 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4621 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4622 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4623 BPF_MOV64_IMM(BPF_REG_3, 0),
4624 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4625 BPF_MOV64_IMM(BPF_REG_2, 0),
4626 BPF_MOV64_IMM(BPF_REG_3, 0),
4627 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4628 BPF_EXIT_INSN(),
4629 },
4630 .fixup_map2 = { 3 },
4631 .errstr = "R1 min value is outside of the array range",
4632 .result = REJECT,
4633 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4634 },
4635 {
4636 "helper access to adjusted map (via const reg): out-of-bound range",
4637 .insns = {
4638 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4639 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4640 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4641 BPF_LD_MAP_FD(BPF_REG_1, 0),
4642 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4643 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4644 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4645 BPF_MOV64_IMM(BPF_REG_3,
4646 offsetof(struct test_val, foo)),
4647 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4648 BPF_MOV64_IMM(BPF_REG_2,
4649 sizeof(struct test_val) -
4650 offsetof(struct test_val, foo) + 8),
4651 BPF_MOV64_IMM(BPF_REG_3, 0),
4652 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4653 BPF_EXIT_INSN(),
4654 },
4655 .fixup_map2 = { 3 },
4656 .errstr = "invalid access to map value, value_size=48 off=4 size=52",
4657 .result = REJECT,
4658 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4659 },
4660 {
4661 "helper access to adjusted map (via const reg): negative range (> adjustment)",
4662 .insns = {
4663 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4664 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4665 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4666 BPF_LD_MAP_FD(BPF_REG_1, 0),
4667 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4668 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4669 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4670 BPF_MOV64_IMM(BPF_REG_3,
4671 offsetof(struct test_val, foo)),
4672 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4673 BPF_MOV64_IMM(BPF_REG_2, -8),
4674 BPF_MOV64_IMM(BPF_REG_3, 0),
4675 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4676 BPF_EXIT_INSN(),
4677 },
4678 .fixup_map2 = { 3 },
4679 .errstr = "R2 min value is negative",
4680 .result = REJECT,
4681 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4682 },
4683 {
4684 "helper access to adjusted map (via const reg): negative range (< adjustment)",
4685 .insns = {
4686 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4687 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4688 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4689 BPF_LD_MAP_FD(BPF_REG_1, 0),
4690 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4691 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4692 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4693 BPF_MOV64_IMM(BPF_REG_3,
4694 offsetof(struct test_val, foo)),
4695 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4696 BPF_MOV64_IMM(BPF_REG_2, -1),
4697 BPF_MOV64_IMM(BPF_REG_3, 0),
4698 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4699 BPF_EXIT_INSN(),
4700 },
4701 .fixup_map2 = { 3 },
4702 .errstr = "R2 min value is negative",
4703 .result = REJECT,
4704 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4705 },
4706 {
4707 "helper access to adjusted map (via variable): full range",
4708 .insns = {
4709 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4710 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4711 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4712 BPF_LD_MAP_FD(BPF_REG_1, 0),
4713 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4714 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
4715 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4716 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4717 BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
4718 offsetof(struct test_val, foo), 4),
4719 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4720 BPF_MOV64_IMM(BPF_REG_2,
4721 sizeof(struct test_val) -
4722 offsetof(struct test_val, foo)),
4723 BPF_MOV64_IMM(BPF_REG_3, 0),
4724 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4725 BPF_EXIT_INSN(),
4726 },
4727 .fixup_map2 = { 3 },
4728 .result = ACCEPT,
4729 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4730 },
4731 {
4732 "helper access to adjusted map (via variable): partial range",
4733 .insns = {
4734 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4735 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4736 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4737 BPF_LD_MAP_FD(BPF_REG_1, 0),
4738 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4739 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
4740 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4741 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4742 BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
4743 offsetof(struct test_val, foo), 4),
4744 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4745 BPF_MOV64_IMM(BPF_REG_2, 8),
4746 BPF_MOV64_IMM(BPF_REG_3, 0),
4747 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4748 BPF_EXIT_INSN(),
4749 },
4750 .fixup_map2 = { 3 },
4751 .result = ACCEPT,
4752 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4753 },
4754 {
4755 "helper access to adjusted map (via variable): empty range",
4756 .insns = {
4757 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4758 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4759 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4760 BPF_LD_MAP_FD(BPF_REG_1, 0),
4761 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4762 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
4763 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4764 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4765 BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
4766 offsetof(struct test_val, foo), 4),
4767 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4768 BPF_MOV64_IMM(BPF_REG_2, 0),
4769 BPF_MOV64_IMM(BPF_REG_3, 0),
4770 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4771 BPF_EXIT_INSN(),
4772 },
4773 .fixup_map2 = { 3 },
4774 .errstr = "R1 min value is outside of the array range",
4775 .result = REJECT,
4776 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4777 },
4778 {
4779 "helper access to adjusted map (via variable): no max check",
4780 .insns = {
4781 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4782 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4783 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4784 BPF_LD_MAP_FD(BPF_REG_1, 0),
4785 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4786 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
4787 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4788 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4789 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4790 BPF_MOV64_IMM(BPF_REG_2, 1),
4791 BPF_MOV64_IMM(BPF_REG_3, 0),
4792 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4793 BPF_EXIT_INSN(),
4794 },
4795 .fixup_map2 = { 3 },
4796 .errstr = "R1 unbounded memory access",
4797 .result = REJECT,
4798 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4799 },
4800 {
4801 "helper access to adjusted map (via variable): wrong max check",
4802 .insns = {
4803 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4804 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4805 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4806 BPF_LD_MAP_FD(BPF_REG_1, 0),
4807 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4808 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
4809 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4810 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4811 BPF_JMP_IMM(BPF_JGT, BPF_REG_3,
4812 offsetof(struct test_val, foo), 4),
4813 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4814 BPF_MOV64_IMM(BPF_REG_2,
4815 sizeof(struct test_val) -
4816 offsetof(struct test_val, foo) + 1),
4817 BPF_MOV64_IMM(BPF_REG_3, 0),
4818 BPF_EMIT_CALL(BPF_FUNC_probe_read),
4819 BPF_EXIT_INSN(),
4820 },
4821 .fixup_map2 = { 3 },
4822 .errstr = "invalid access to map value, value_size=48 off=4 size=45",
4823 .result = REJECT,
4824 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4825 },
4826 {
4827 "helper access to map: bounds check using <, good access",
4828 .insns = {
4829 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4830 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4831 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4832 BPF_LD_MAP_FD(BPF_REG_1, 0),
4833 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4834 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4835 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4836 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4837 BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 2),
4838 BPF_MOV64_IMM(BPF_REG_0, 0),
4839 BPF_EXIT_INSN(),
4840 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4841 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4842 BPF_MOV64_IMM(BPF_REG_0, 0),
4843 BPF_EXIT_INSN(),
4844 },
4845 .fixup_map2 = { 3 },
4846 .result = ACCEPT,
4847 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4848 },
4849 {
4850 "helper access to map: bounds check using <, bad access",
4851 .insns = {
4852 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4853 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4854 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4855 BPF_LD_MAP_FD(BPF_REG_1, 0),
4856 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4857 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4858 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4859 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4860 BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 4),
4861 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4862 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4863 BPF_MOV64_IMM(BPF_REG_0, 0),
4864 BPF_EXIT_INSN(),
4865 BPF_MOV64_IMM(BPF_REG_0, 0),
4866 BPF_EXIT_INSN(),
4867 },
4868 .fixup_map2 = { 3 },
4869 .result = REJECT,
4870 .errstr = "R1 unbounded memory access",
4871 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4872 },
4873 {
4874 "helper access to map: bounds check using <=, good access",
4875 .insns = {
4876 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4877 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4878 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4879 BPF_LD_MAP_FD(BPF_REG_1, 0),
4880 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4881 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4882 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4883 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4884 BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 2),
4885 BPF_MOV64_IMM(BPF_REG_0, 0),
4886 BPF_EXIT_INSN(),
4887 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4888 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4889 BPF_MOV64_IMM(BPF_REG_0, 0),
4890 BPF_EXIT_INSN(),
4891 },
4892 .fixup_map2 = { 3 },
4893 .result = ACCEPT,
4894 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4895 },
4896 {
4897 "helper access to map: bounds check using <=, bad access",
4898 .insns = {
4899 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4900 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4901 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4902 BPF_LD_MAP_FD(BPF_REG_1, 0),
4903 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4904 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4905 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4906 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4907 BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 4),
4908 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4909 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4910 BPF_MOV64_IMM(BPF_REG_0, 0),
4911 BPF_EXIT_INSN(),
4912 BPF_MOV64_IMM(BPF_REG_0, 0),
4913 BPF_EXIT_INSN(),
4914 },
4915 .fixup_map2 = { 3 },
4916 .result = REJECT,
4917 .errstr = "R1 unbounded memory access",
4918 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4919 },
4920 {
4921 "helper access to map: bounds check using s<, good access",
4922 .insns = {
4923 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4924 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4925 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4926 BPF_LD_MAP_FD(BPF_REG_1, 0),
4927 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4928 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4929 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4930 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4931 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2),
4932 BPF_MOV64_IMM(BPF_REG_0, 0),
4933 BPF_EXIT_INSN(),
4934 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 0, -3),
4935 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4936 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4937 BPF_MOV64_IMM(BPF_REG_0, 0),
4938 BPF_EXIT_INSN(),
4939 },
4940 .fixup_map2 = { 3 },
4941 .result = ACCEPT,
4942 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4943 },
4944 {
4945 "helper access to map: bounds check using s<, good access 2",
4946 .insns = {
4947 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4948 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4949 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4950 BPF_LD_MAP_FD(BPF_REG_1, 0),
4951 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4952 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4953 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4954 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
4955 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2),
4956 BPF_MOV64_IMM(BPF_REG_0, 0),
4957 BPF_EXIT_INSN(),
4958 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3),
4959 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4960 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4961 BPF_MOV64_IMM(BPF_REG_0, 0),
4962 BPF_EXIT_INSN(),
4963 },
4964 .fixup_map2 = { 3 },
4965 .result = ACCEPT,
4966 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4967 },
4968 {
4969 "helper access to map: bounds check using s<, bad access",
4970 .insns = {
4971 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4972 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4973 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4974 BPF_LD_MAP_FD(BPF_REG_1, 0),
4975 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
4976 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
4977 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
4978 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
4979 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2),
4980 BPF_MOV64_IMM(BPF_REG_0, 0),
4981 BPF_EXIT_INSN(),
4982 BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3),
4983 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
4984 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
4985 BPF_MOV64_IMM(BPF_REG_0, 0),
4986 BPF_EXIT_INSN(),
4987 },
4988 .fixup_map2 = { 3 },
4989 .result = REJECT,
4990 .errstr = "R1 min value is negative",
4991 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
4992 },
4993 {
4994 "helper access to map: bounds check using s<=, good access",
4995 .insns = {
4996 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
4997 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
4998 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
4999 BPF_LD_MAP_FD(BPF_REG_1, 0),
5000 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5001 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
5002 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5003 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
5004 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2),
5005 BPF_MOV64_IMM(BPF_REG_0, 0),
5006 BPF_EXIT_INSN(),
5007 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 0, -3),
5008 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
5009 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
5010 BPF_MOV64_IMM(BPF_REG_0, 0),
5011 BPF_EXIT_INSN(),
5012 },
5013 .fixup_map2 = { 3 },
5014 .result = ACCEPT,
5015 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5016 },
5017 {
5018 "helper access to map: bounds check using s<=, good access 2",
5019 .insns = {
5020 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5021 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5022 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5023 BPF_LD_MAP_FD(BPF_REG_1, 0),
5024 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5025 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
5026 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5027 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
5028 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2),
5029 BPF_MOV64_IMM(BPF_REG_0, 0),
5030 BPF_EXIT_INSN(),
5031 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3),
5032 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
5033 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
5034 BPF_MOV64_IMM(BPF_REG_0, 0),
5035 BPF_EXIT_INSN(),
5036 },
5037 .fixup_map2 = { 3 },
5038 .result = ACCEPT,
5039 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5040 },
5041 {
5042 "helper access to map: bounds check using s<=, bad access",
5043 .insns = {
5044 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5045 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5046 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5047 BPF_LD_MAP_FD(BPF_REG_1, 0),
5048 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5049 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
5050 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5051 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
5052 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2),
5053 BPF_MOV64_IMM(BPF_REG_0, 0),
5054 BPF_EXIT_INSN(),
5055 BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3),
5056 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3),
5057 BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0),
5058 BPF_MOV64_IMM(BPF_REG_0, 0),
5059 BPF_EXIT_INSN(),
5060 },
5061 .fixup_map2 = { 3 },
5062 .result = REJECT,
5063 .errstr = "R1 min value is negative",
5064 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5065 },
5066 {
5067 "map element value is preserved across register spilling",
5068 .insns = {
5069 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5070 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5071 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5072 BPF_LD_MAP_FD(BPF_REG_1, 0),
5073 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5074 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
5075 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
5076 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5077 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184),
5078 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
5079 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
5080 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
5081 BPF_EXIT_INSN(),
5082 },
5083 .fixup_map2 = { 3 },
5084 .errstr_unpriv = "R0 leaks addr",
5085 .result = ACCEPT,
5086 .result_unpriv = REJECT,
5087 },
5088 {
5089 "map element value or null is marked on register spilling",
5090 .insns = {
5091 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5092 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5093 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5094 BPF_LD_MAP_FD(BPF_REG_1, 0),
5095 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5096 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5097 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152),
5098 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
5099 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5100 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
5101 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
5102 BPF_EXIT_INSN(),
5103 },
5104 .fixup_map2 = { 3 },
5105 .errstr_unpriv = "R0 leaks addr",
5106 .result = ACCEPT,
5107 .result_unpriv = REJECT,
5108 },
5109 {
5110 "map element value store of cleared call register",
5111 .insns = {
5112 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5113 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5114 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5115 BPF_LD_MAP_FD(BPF_REG_1, 0),
5116 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5117 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
5118 BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
5119 BPF_EXIT_INSN(),
5120 },
5121 .fixup_map2 = { 3 },
5122 .errstr_unpriv = "R1 !read_ok",
5123 .errstr = "R1 !read_ok",
5124 .result = REJECT,
5125 .result_unpriv = REJECT,
5126 },
5127 {
5128 "map element value with unaligned store",
5129 .insns = {
5130 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5131 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5132 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5133 BPF_LD_MAP_FD(BPF_REG_1, 0),
5134 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5135 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17),
5136 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
5137 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
5138 BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43),
5139 BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44),
5140 BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
5141 BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32),
5142 BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33),
5143 BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34),
5144 BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5),
5145 BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22),
5146 BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23),
5147 BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24),
5148 BPF_MOV64_REG(BPF_REG_7, BPF_REG_8),
5149 BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3),
5150 BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22),
5151 BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23),
5152 BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24),
5153 BPF_EXIT_INSN(),
5154 },
5155 .fixup_map2 = { 3 },
5156 .errstr_unpriv = "R0 leaks addr",
5157 .result = ACCEPT,
5158 .result_unpriv = REJECT,
5159 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5160 },
5161 {
5162 "map element value with unaligned load",
5163 .insns = {
5164 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5165 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5166 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5167 BPF_LD_MAP_FD(BPF_REG_1, 0),
5168 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5169 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
5170 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
5171 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9),
5172 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3),
5173 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
5174 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2),
5175 BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
5176 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0),
5177 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2),
5178 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5),
5179 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
5180 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4),
5181 BPF_EXIT_INSN(),
5182 },
5183 .fixup_map2 = { 3 },
5184 .errstr_unpriv = "R0 leaks addr",
5185 .result = ACCEPT,
5186 .result_unpriv = REJECT,
5187 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5188 },
5189 {
5190 "map element value illegal alu op, 1",
5191 .insns = {
5192 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5193 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5194 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5195 BPF_LD_MAP_FD(BPF_REG_1, 0),
5196 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5197 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5198 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8),
5199 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5200 BPF_EXIT_INSN(),
5201 },
5202 .fixup_map2 = { 3 },
5203 .errstr_unpriv = "R0 bitwise operator &= on pointer",
5204 .errstr = "invalid mem access 'inv'",
5205 .result = REJECT,
5206 .result_unpriv = REJECT,
5207 },
5208 {
5209 "map element value illegal alu op, 2",
5210 .insns = {
5211 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5212 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5213 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5214 BPF_LD_MAP_FD(BPF_REG_1, 0),
5215 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5216 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5217 BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0),
5218 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5219 BPF_EXIT_INSN(),
5220 },
5221 .fixup_map2 = { 3 },
5222 .errstr_unpriv = "R0 32-bit pointer arithmetic prohibited",
5223 .errstr = "invalid mem access 'inv'",
5224 .result = REJECT,
5225 .result_unpriv = REJECT,
5226 },
5227 {
5228 "map element value illegal alu op, 3",
5229 .insns = {
5230 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5231 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5232 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5233 BPF_LD_MAP_FD(BPF_REG_1, 0),
5234 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5235 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5236 BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42),
5237 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5238 BPF_EXIT_INSN(),
5239 },
5240 .fixup_map2 = { 3 },
5241 .errstr_unpriv = "R0 pointer arithmetic with /= operator",
5242 .errstr = "invalid mem access 'inv'",
5243 .result = REJECT,
5244 .result_unpriv = REJECT,
5245 },
5246 {
5247 "map element value illegal alu op, 4",
5248 .insns = {
5249 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5250 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5251 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5252 BPF_LD_MAP_FD(BPF_REG_1, 0),
5253 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5254 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
5255 BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64),
5256 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5257 BPF_EXIT_INSN(),
5258 },
5259 .fixup_map2 = { 3 },
5260 .errstr_unpriv = "R0 pointer arithmetic prohibited",
5261 .errstr = "invalid mem access 'inv'",
5262 .result = REJECT,
5263 .result_unpriv = REJECT,
5264 },
5265 {
5266 "map element value illegal alu op, 5",
5267 .insns = {
5268 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5269 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5270 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5271 BPF_LD_MAP_FD(BPF_REG_1, 0),
5272 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5273 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
5274 BPF_MOV64_IMM(BPF_REG_3, 4096),
5275 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5276 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5277 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
5278 BPF_STX_XADD(BPF_DW, BPF_REG_2, BPF_REG_3, 0),
5279 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0),
5280 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22),
5281 BPF_EXIT_INSN(),
5282 },
5283 .fixup_map2 = { 3 },
5284 .errstr = "R0 invalid mem access 'inv'",
5285 .result = REJECT,
5286 },
5287 {
5288 "map element value is preserved across register spilling",
5289 .insns = {
5290 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5291 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5292 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5293 BPF_LD_MAP_FD(BPF_REG_1, 0),
5294 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5295 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
5296 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0,
5297 offsetof(struct test_val, foo)),
5298 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
5299 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5300 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184),
5301 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
5302 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0),
5303 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42),
5304 BPF_EXIT_INSN(),
5305 },
5306 .fixup_map2 = { 3 },
5307 .errstr_unpriv = "R0 leaks addr",
5308 .result = ACCEPT,
5309 .result_unpriv = REJECT,
5310 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5311 },
5312 {
5313 "helper access to variable memory: stack, bitwise AND + JMP, correct bounds",
5314 .insns = {
5315 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5316 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5317 BPF_MOV64_IMM(BPF_REG_0, 0),
5318 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5319 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5320 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5321 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5322 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
5323 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5324 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5325 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5326 BPF_MOV64_IMM(BPF_REG_2, 16),
5327 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5328 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5329 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
5330 BPF_MOV64_IMM(BPF_REG_4, 0),
5331 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5332 BPF_MOV64_IMM(BPF_REG_3, 0),
5333 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5334 BPF_MOV64_IMM(BPF_REG_0, 0),
5335 BPF_EXIT_INSN(),
5336 },
5337 .result = ACCEPT,
5338 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5339 },
5340 {
5341 "helper access to variable memory: stack, bitwise AND, zero included",
5342 .insns = {
5343 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5344 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5345 BPF_MOV64_IMM(BPF_REG_2, 16),
5346 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5347 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5348 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
5349 BPF_MOV64_IMM(BPF_REG_3, 0),
5350 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5351 BPF_EXIT_INSN(),
5352 },
5353 .errstr = "invalid stack type R1 off=-64 access_size=0",
5354 .result = REJECT,
5355 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5356 },
5357 {
5358 "helper access to variable memory: stack, bitwise AND + JMP, wrong max",
5359 .insns = {
5360 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5361 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5362 BPF_MOV64_IMM(BPF_REG_2, 16),
5363 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5364 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5365 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65),
5366 BPF_MOV64_IMM(BPF_REG_4, 0),
5367 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5368 BPF_MOV64_IMM(BPF_REG_3, 0),
5369 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5370 BPF_MOV64_IMM(BPF_REG_0, 0),
5371 BPF_EXIT_INSN(),
5372 },
5373 .errstr = "invalid stack type R1 off=-64 access_size=65",
5374 .result = REJECT,
5375 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5376 },
5377 {
5378 "helper access to variable memory: stack, JMP, correct bounds",
5379 .insns = {
5380 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5381 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5382 BPF_MOV64_IMM(BPF_REG_0, 0),
5383 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5384 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5385 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5386 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5387 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
5388 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5389 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5390 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5391 BPF_MOV64_IMM(BPF_REG_2, 16),
5392 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5393 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5394 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4),
5395 BPF_MOV64_IMM(BPF_REG_4, 0),
5396 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5397 BPF_MOV64_IMM(BPF_REG_3, 0),
5398 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5399 BPF_MOV64_IMM(BPF_REG_0, 0),
5400 BPF_EXIT_INSN(),
5401 },
5402 .result = ACCEPT,
5403 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5404 },
5405 {
5406 "helper access to variable memory: stack, JMP (signed), correct bounds",
5407 .insns = {
5408 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5409 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5410 BPF_MOV64_IMM(BPF_REG_0, 0),
5411 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5412 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5413 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5414 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5415 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
5416 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5417 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5418 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5419 BPF_MOV64_IMM(BPF_REG_2, 16),
5420 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5421 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5422 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4),
5423 BPF_MOV64_IMM(BPF_REG_4, 0),
5424 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5425 BPF_MOV64_IMM(BPF_REG_3, 0),
5426 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5427 BPF_MOV64_IMM(BPF_REG_0, 0),
5428 BPF_EXIT_INSN(),
5429 },
5430 .result = ACCEPT,
5431 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5432 },
5433 {
5434 "helper access to variable memory: stack, JMP, bounds + offset",
5435 .insns = {
5436 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5437 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5438 BPF_MOV64_IMM(BPF_REG_2, 16),
5439 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5440 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5441 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5),
5442 BPF_MOV64_IMM(BPF_REG_4, 0),
5443 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3),
5444 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
5445 BPF_MOV64_IMM(BPF_REG_3, 0),
5446 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5447 BPF_MOV64_IMM(BPF_REG_0, 0),
5448 BPF_EXIT_INSN(),
5449 },
5450 .errstr = "invalid stack type R1 off=-64 access_size=65",
5451 .result = REJECT,
5452 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5453 },
5454 {
5455 "helper access to variable memory: stack, JMP, wrong max",
5456 .insns = {
5457 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5458 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5459 BPF_MOV64_IMM(BPF_REG_2, 16),
5460 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5461 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5462 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4),
5463 BPF_MOV64_IMM(BPF_REG_4, 0),
5464 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5465 BPF_MOV64_IMM(BPF_REG_3, 0),
5466 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5467 BPF_MOV64_IMM(BPF_REG_0, 0),
5468 BPF_EXIT_INSN(),
5469 },
5470 .errstr = "invalid stack type R1 off=-64 access_size=65",
5471 .result = REJECT,
5472 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5473 },
5474 {
5475 "helper access to variable memory: stack, JMP, no max check",
5476 .insns = {
5477 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5478 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5479 BPF_MOV64_IMM(BPF_REG_2, 16),
5480 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5481 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5482 BPF_MOV64_IMM(BPF_REG_4, 0),
5483 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2),
5484 BPF_MOV64_IMM(BPF_REG_3, 0),
5485 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5486 BPF_MOV64_IMM(BPF_REG_0, 0),
5487 BPF_EXIT_INSN(),
5488 },
5489 /* because max wasn't checked, signed min is negative */
5490 .errstr = "R2 min value is negative, either use unsigned or 'var &= const'",
5491 .result = REJECT,
5492 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5493 },
5494 {
5495 "helper access to variable memory: stack, JMP, no min check",
5496 .insns = {
5497 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5498 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5499 BPF_MOV64_IMM(BPF_REG_2, 16),
5500 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5501 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5502 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3),
5503 BPF_MOV64_IMM(BPF_REG_3, 0),
5504 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5505 BPF_MOV64_IMM(BPF_REG_0, 0),
5506 BPF_EXIT_INSN(),
5507 },
5508 .errstr = "invalid stack type R1 off=-64 access_size=0",
5509 .result = REJECT,
5510 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5511 },
5512 {
5513 "helper access to variable memory: stack, JMP (signed), no min check",
5514 .insns = {
5515 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5516 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5517 BPF_MOV64_IMM(BPF_REG_2, 16),
5518 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128),
5519 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128),
5520 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3),
5521 BPF_MOV64_IMM(BPF_REG_3, 0),
5522 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5523 BPF_MOV64_IMM(BPF_REG_0, 0),
5524 BPF_EXIT_INSN(),
5525 },
5526 .errstr = "R2 min value is negative",
5527 .result = REJECT,
5528 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5529 },
5530 {
5531 "helper access to variable memory: map, JMP, correct bounds",
5532 .insns = {
5533 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5534 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5535 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5536 BPF_LD_MAP_FD(BPF_REG_1, 0),
5537 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5538 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
5539 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5540 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
5541 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5542 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5543 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
5544 sizeof(struct test_val), 4),
5545 BPF_MOV64_IMM(BPF_REG_4, 0),
5546 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5547 BPF_MOV64_IMM(BPF_REG_3, 0),
5548 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5549 BPF_MOV64_IMM(BPF_REG_0, 0),
5550 BPF_EXIT_INSN(),
5551 },
5552 .fixup_map2 = { 3 },
5553 .result = ACCEPT,
5554 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5555 },
5556 {
5557 "helper access to variable memory: map, JMP, wrong max",
5558 .insns = {
5559 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5560 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5561 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5562 BPF_LD_MAP_FD(BPF_REG_1, 0),
5563 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5564 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
5565 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5566 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
5567 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5568 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5569 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
5570 sizeof(struct test_val) + 1, 4),
5571 BPF_MOV64_IMM(BPF_REG_4, 0),
5572 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5573 BPF_MOV64_IMM(BPF_REG_3, 0),
5574 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5575 BPF_MOV64_IMM(BPF_REG_0, 0),
5576 BPF_EXIT_INSN(),
5577 },
5578 .fixup_map2 = { 3 },
5579 .errstr = "invalid access to map value, value_size=48 off=0 size=49",
5580 .result = REJECT,
5581 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5582 },
5583 {
5584 "helper access to variable memory: map adjusted, JMP, correct bounds",
5585 .insns = {
5586 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5587 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5588 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5589 BPF_LD_MAP_FD(BPF_REG_1, 0),
5590 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5591 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
5592 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5593 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20),
5594 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
5595 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5596 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5597 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
5598 sizeof(struct test_val) - 20, 4),
5599 BPF_MOV64_IMM(BPF_REG_4, 0),
5600 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5601 BPF_MOV64_IMM(BPF_REG_3, 0),
5602 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5603 BPF_MOV64_IMM(BPF_REG_0, 0),
5604 BPF_EXIT_INSN(),
5605 },
5606 .fixup_map2 = { 3 },
5607 .result = ACCEPT,
5608 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5609 },
5610 {
5611 "helper access to variable memory: map adjusted, JMP, wrong max",
5612 .insns = {
5613 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5614 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5615 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
5616 BPF_LD_MAP_FD(BPF_REG_1, 0),
5617 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
5618 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11),
5619 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5620 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20),
5621 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)),
5622 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5623 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5624 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2,
5625 sizeof(struct test_val) - 19, 4),
5626 BPF_MOV64_IMM(BPF_REG_4, 0),
5627 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2),
5628 BPF_MOV64_IMM(BPF_REG_3, 0),
5629 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5630 BPF_MOV64_IMM(BPF_REG_0, 0),
5631 BPF_EXIT_INSN(),
5632 },
5633 .fixup_map2 = { 3 },
5634 .errstr = "R1 min value is outside of the array range",
5635 .result = REJECT,
5636 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5637 },
5638 {
5639 "helper access to variable memory: size = 0 allowed on NULL",
5640 .insns = {
5641 BPF_MOV64_IMM(BPF_REG_1, 0),
5642 BPF_MOV64_IMM(BPF_REG_2, 0),
5643 BPF_MOV64_IMM(BPF_REG_3, 0),
5644 BPF_MOV64_IMM(BPF_REG_4, 0),
5645 BPF_MOV64_IMM(BPF_REG_5, 0),
5646 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5647 BPF_EXIT_INSN(),
5648 },
5649 .result = ACCEPT,
5650 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5651 },
5652 {
5653 "helper access to variable memory: size > 0 not allowed on NULL",
5654 .insns = {
5655 BPF_MOV64_IMM(BPF_REG_1, 0),
5656 BPF_MOV64_IMM(BPF_REG_2, 0),
5657 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5658 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5659 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64),
5660 BPF_MOV64_IMM(BPF_REG_3, 0),
5661 BPF_MOV64_IMM(BPF_REG_4, 0),
5662 BPF_MOV64_IMM(BPF_REG_5, 0),
5663 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5664 BPF_EXIT_INSN(),
5665 },
5666 .errstr = "R1 type=inv expected=fp",
5667 .result = REJECT,
5668 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5669 },
5670 {
5671 "helper access to variable memory: size = 0 not allowed on != NULL",
5672 .insns = {
5673 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5674 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
5675 BPF_MOV64_IMM(BPF_REG_2, 0),
5676 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0),
5677 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8),
5678 BPF_MOV64_IMM(BPF_REG_3, 0),
5679 BPF_MOV64_IMM(BPF_REG_4, 0),
5680 BPF_MOV64_IMM(BPF_REG_5, 0),
5681 BPF_EMIT_CALL(BPF_FUNC_csum_diff),
5682 BPF_EXIT_INSN(),
5683 },
5684 .errstr = "invalid stack type R1 off=-8 access_size=0",
5685 .result = REJECT,
5686 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
5687 },
5688 {
5689 "helper access to variable memory: 8 bytes leak",
5690 .insns = {
5691 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5692 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5693 BPF_MOV64_IMM(BPF_REG_0, 0),
5694 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5695 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5696 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5697 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5698 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5699 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5700 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5701 BPF_MOV64_IMM(BPF_REG_2, 0),
5702 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128),
5703 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128),
5704 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63),
5705 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
5706 BPF_MOV64_IMM(BPF_REG_3, 0),
5707 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5708 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
5709 BPF_EXIT_INSN(),
5710 },
5711 .errstr = "invalid indirect read from stack off -64+32 size 64",
5712 .result = REJECT,
5713 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5714 },
5715 {
5716 "helper access to variable memory: 8 bytes no leak (init memory)",
5717 .insns = {
5718 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
5719 BPF_MOV64_IMM(BPF_REG_0, 0),
5720 BPF_MOV64_IMM(BPF_REG_0, 0),
5721 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64),
5722 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56),
5723 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48),
5724 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40),
5725 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32),
5726 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24),
5727 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16),
5728 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
5729 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64),
5730 BPF_MOV64_IMM(BPF_REG_2, 0),
5731 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32),
5732 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32),
5733 BPF_MOV64_IMM(BPF_REG_3, 0),
5734 BPF_EMIT_CALL(BPF_FUNC_probe_read),
5735 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
5736 BPF_EXIT_INSN(),
5737 },
5738 .result = ACCEPT,
5739 .prog_type = BPF_PROG_TYPE_TRACEPOINT,
5740 },
5741 {
5742 "invalid and of negative number",
5743 .insns = {
5744 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
5745 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5746 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5747 BPF_LD_MAP_FD(BPF_REG_1, 0),
5748 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5749 BPF_FUNC_map_lookup_elem),
5750 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
5751 BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
5752 BPF_ALU64_IMM(BPF_AND, BPF_REG_1, -4),
5753 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2),
5754 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
5755 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
5756 offsetof(struct test_val, foo)),
5757 BPF_EXIT_INSN(),
5758 },
5759 .fixup_map2 = { 3 },
5760 .errstr = "R0 max value is outside of the array range",
5761 .result = REJECT,
5762 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5763 },
5764 {
5765 "invalid range check",
5766 .insns = {
5767 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
5768 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5769 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
5770 BPF_LD_MAP_FD(BPF_REG_1, 0),
5771 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5772 BPF_FUNC_map_lookup_elem),
5773 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 12),
5774 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
5775 BPF_MOV64_IMM(BPF_REG_9, 1),
5776 BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2),
5777 BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1),
5778 BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1),
5779 BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1),
5780 BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1),
5781 BPF_MOV32_IMM(BPF_REG_3, 1),
5782 BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9),
5783 BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000),
5784 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3),
5785 BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0),
5786 BPF_MOV64_REG(BPF_REG_0, 0),
5787 BPF_EXIT_INSN(),
5788 },
5789 .fixup_map2 = { 3 },
5790 .errstr = "R0 max value is outside of the array range",
5791 .result = REJECT,
5792 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
5793 },
5794 {
5795 "map in map access",
5796 .insns = {
5797 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5798 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5799 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5800 BPF_LD_MAP_FD(BPF_REG_1, 0),
5801 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5802 BPF_FUNC_map_lookup_elem),
5803 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5),
5804 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5805 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5806 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5807 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5808 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5809 BPF_FUNC_map_lookup_elem),
5810 BPF_MOV64_REG(BPF_REG_0, 0),
5811 BPF_EXIT_INSN(),
5812 },
5813 .fixup_map_in_map = { 3 },
5814 .result = ACCEPT,
5815 },
5816 {
5817 "invalid inner map pointer",
5818 .insns = {
5819 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5820 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5821 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5822 BPF_LD_MAP_FD(BPF_REG_1, 0),
5823 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5824 BPF_FUNC_map_lookup_elem),
5825 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
5826 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5827 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5828 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5829 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5830 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
5831 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5832 BPF_FUNC_map_lookup_elem),
5833 BPF_MOV64_REG(BPF_REG_0, 0),
5834 BPF_EXIT_INSN(),
5835 },
5836 .fixup_map_in_map = { 3 },
5837 .errstr = "R1 type=inv expected=map_ptr",
5838 .errstr_unpriv = "R1 pointer arithmetic on CONST_PTR_TO_MAP prohibited",
5839 .result = REJECT,
5840 },
5841 {
5842 "forgot null checking on the inner map pointer",
5843 .insns = {
5844 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5845 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5846 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5847 BPF_LD_MAP_FD(BPF_REG_1, 0),
5848 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5849 BPF_FUNC_map_lookup_elem),
5850 BPF_ST_MEM(0, BPF_REG_10, -4, 0),
5851 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
5852 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
5853 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
5854 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
5855 BPF_FUNC_map_lookup_elem),
5856 BPF_MOV64_REG(BPF_REG_0, 0),
5857 BPF_EXIT_INSN(),
5858 },
5859 .fixup_map_in_map = { 3 },
5860 .errstr = "R1 type=map_value_or_null expected=map_ptr",
5861 .result = REJECT,
5862 },
5863 {
5864 "ld_abs: check calling conv, r1",
5865 .insns = {
5866 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5867 BPF_MOV64_IMM(BPF_REG_1, 0),
5868 BPF_LD_ABS(BPF_W, -0x200000),
5869 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
5870 BPF_EXIT_INSN(),
5871 },
5872 .errstr = "R1 !read_ok",
5873 .result = REJECT,
5874 },
5875 {
5876 "ld_abs: check calling conv, r2",
5877 .insns = {
5878 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5879 BPF_MOV64_IMM(BPF_REG_2, 0),
5880 BPF_LD_ABS(BPF_W, -0x200000),
5881 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
5882 BPF_EXIT_INSN(),
5883 },
5884 .errstr = "R2 !read_ok",
5885 .result = REJECT,
5886 },
5887 {
5888 "ld_abs: check calling conv, r3",
5889 .insns = {
5890 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5891 BPF_MOV64_IMM(BPF_REG_3, 0),
5892 BPF_LD_ABS(BPF_W, -0x200000),
5893 BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
5894 BPF_EXIT_INSN(),
5895 },
5896 .errstr = "R3 !read_ok",
5897 .result = REJECT,
5898 },
5899 {
5900 "ld_abs: check calling conv, r4",
5901 .insns = {
5902 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5903 BPF_MOV64_IMM(BPF_REG_4, 0),
5904 BPF_LD_ABS(BPF_W, -0x200000),
5905 BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
5906 BPF_EXIT_INSN(),
5907 },
5908 .errstr = "R4 !read_ok",
5909 .result = REJECT,
5910 },
5911 {
5912 "ld_abs: check calling conv, r5",
5913 .insns = {
5914 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5915 BPF_MOV64_IMM(BPF_REG_5, 0),
5916 BPF_LD_ABS(BPF_W, -0x200000),
5917 BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
5918 BPF_EXIT_INSN(),
5919 },
5920 .errstr = "R5 !read_ok",
5921 .result = REJECT,
5922 },
5923 {
5924 "ld_abs: check calling conv, r7",
5925 .insns = {
5926 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5927 BPF_MOV64_IMM(BPF_REG_7, 0),
5928 BPF_LD_ABS(BPF_W, -0x200000),
5929 BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
5930 BPF_EXIT_INSN(),
5931 },
5932 .result = ACCEPT,
5933 },
5934 {
5935 "ld_ind: check calling conv, r1",
5936 .insns = {
5937 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5938 BPF_MOV64_IMM(BPF_REG_1, 1),
5939 BPF_LD_IND(BPF_W, BPF_REG_1, -0x200000),
5940 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
5941 BPF_EXIT_INSN(),
5942 },
5943 .errstr = "R1 !read_ok",
5944 .result = REJECT,
5945 },
5946 {
5947 "ld_ind: check calling conv, r2",
5948 .insns = {
5949 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5950 BPF_MOV64_IMM(BPF_REG_2, 1),
5951 BPF_LD_IND(BPF_W, BPF_REG_2, -0x200000),
5952 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
5953 BPF_EXIT_INSN(),
5954 },
5955 .errstr = "R2 !read_ok",
5956 .result = REJECT,
5957 },
5958 {
5959 "ld_ind: check calling conv, r3",
5960 .insns = {
5961 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5962 BPF_MOV64_IMM(BPF_REG_3, 1),
5963 BPF_LD_IND(BPF_W, BPF_REG_3, -0x200000),
5964 BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
5965 BPF_EXIT_INSN(),
5966 },
5967 .errstr = "R3 !read_ok",
5968 .result = REJECT,
5969 },
5970 {
5971 "ld_ind: check calling conv, r4",
5972 .insns = {
5973 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5974 BPF_MOV64_IMM(BPF_REG_4, 1),
5975 BPF_LD_IND(BPF_W, BPF_REG_4, -0x200000),
5976 BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
5977 BPF_EXIT_INSN(),
5978 },
5979 .errstr = "R4 !read_ok",
5980 .result = REJECT,
5981 },
5982 {
5983 "ld_ind: check calling conv, r5",
5984 .insns = {
5985 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5986 BPF_MOV64_IMM(BPF_REG_5, 1),
5987 BPF_LD_IND(BPF_W, BPF_REG_5, -0x200000),
5988 BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
5989 BPF_EXIT_INSN(),
5990 },
5991 .errstr = "R5 !read_ok",
5992 .result = REJECT,
5993 },
5994 {
5995 "ld_ind: check calling conv, r7",
5996 .insns = {
5997 BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
5998 BPF_MOV64_IMM(BPF_REG_7, 1),
5999 BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000),
6000 BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
6001 BPF_EXIT_INSN(),
6002 },
6003 .result = ACCEPT,
6004 },
6005 {
6006 "check bpf_perf_event_data->sample_period byte load permitted",
6007 .insns = {
6008 BPF_MOV64_IMM(BPF_REG_0, 0),
6009 #if __BYTE_ORDER == __LITTLE_ENDIAN
6010 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
6011 offsetof(struct bpf_perf_event_data, sample_period)),
6012 #else
6013 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
6014 offsetof(struct bpf_perf_event_data, sample_period) + 7),
6015 #endif
6016 BPF_EXIT_INSN(),
6017 },
6018 .result = ACCEPT,
6019 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
6020 },
6021 {
6022 "check bpf_perf_event_data->sample_period half load permitted",
6023 .insns = {
6024 BPF_MOV64_IMM(BPF_REG_0, 0),
6025 #if __BYTE_ORDER == __LITTLE_ENDIAN
6026 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6027 offsetof(struct bpf_perf_event_data, sample_period)),
6028 #else
6029 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6030 offsetof(struct bpf_perf_event_data, sample_period) + 6),
6031 #endif
6032 BPF_EXIT_INSN(),
6033 },
6034 .result = ACCEPT,
6035 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
6036 },
6037 {
6038 "check bpf_perf_event_data->sample_period word load permitted",
6039 .insns = {
6040 BPF_MOV64_IMM(BPF_REG_0, 0),
6041 #if __BYTE_ORDER == __LITTLE_ENDIAN
6042 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
6043 offsetof(struct bpf_perf_event_data, sample_period)),
6044 #else
6045 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
6046 offsetof(struct bpf_perf_event_data, sample_period) + 4),
6047 #endif
6048 BPF_EXIT_INSN(),
6049 },
6050 .result = ACCEPT,
6051 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
6052 },
6053 {
6054 "check bpf_perf_event_data->sample_period dword load permitted",
6055 .insns = {
6056 BPF_MOV64_IMM(BPF_REG_0, 0),
6057 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
6058 offsetof(struct bpf_perf_event_data, sample_period)),
6059 BPF_EXIT_INSN(),
6060 },
6061 .result = ACCEPT,
6062 .prog_type = BPF_PROG_TYPE_PERF_EVENT,
6063 },
6064 {
6065 "check skb->data half load not permitted",
6066 .insns = {
6067 BPF_MOV64_IMM(BPF_REG_0, 0),
6068 #if __BYTE_ORDER == __LITTLE_ENDIAN
6069 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6070 offsetof(struct __sk_buff, data)),
6071 #else
6072 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6073 offsetof(struct __sk_buff, data) + 2),
6074 #endif
6075 BPF_EXIT_INSN(),
6076 },
6077 .result = REJECT,
6078 .errstr = "invalid bpf_context access",
6079 },
6080 {
6081 "check skb->tc_classid half load not permitted for lwt prog",
6082 .insns = {
6083 BPF_MOV64_IMM(BPF_REG_0, 0),
6084 #if __BYTE_ORDER == __LITTLE_ENDIAN
6085 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6086 offsetof(struct __sk_buff, tc_classid)),
6087 #else
6088 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
6089 offsetof(struct __sk_buff, tc_classid) + 2),
6090 #endif
6091 BPF_EXIT_INSN(),
6092 },
6093 .result = REJECT,
6094 .errstr = "invalid bpf_context access",
6095 .prog_type = BPF_PROG_TYPE_LWT_IN,
6096 },
6097 {
6098 "bounds checks mixing signed and unsigned, positive bounds",
6099 .insns = {
6100 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6101 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6102 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6103 BPF_LD_MAP_FD(BPF_REG_1, 0),
6104 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6105 BPF_FUNC_map_lookup_elem),
6106 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
6107 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6108 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6109 BPF_MOV64_IMM(BPF_REG_2, 2),
6110 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 3),
6111 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 4, 2),
6112 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6113 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6114 BPF_MOV64_IMM(BPF_REG_0, 0),
6115 BPF_EXIT_INSN(),
6116 },
6117 .fixup_map1 = { 3 },
6118 .errstr = "R0 min value is negative",
6119 .result = REJECT,
6120 },
6121 {
6122 "bounds checks mixing signed and unsigned",
6123 .insns = {
6124 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6125 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6126 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6127 BPF_LD_MAP_FD(BPF_REG_1, 0),
6128 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6129 BPF_FUNC_map_lookup_elem),
6130 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
6131 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6132 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6133 BPF_MOV64_IMM(BPF_REG_2, -1),
6134 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
6135 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6136 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6137 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6138 BPF_MOV64_IMM(BPF_REG_0, 0),
6139 BPF_EXIT_INSN(),
6140 },
6141 .fixup_map1 = { 3 },
6142 .errstr = "R0 min value is negative",
6143 .result = REJECT,
6144 },
6145 {
6146 "bounds checks mixing signed and unsigned, variant 2",
6147 .insns = {
6148 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6149 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6150 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6151 BPF_LD_MAP_FD(BPF_REG_1, 0),
6152 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6153 BPF_FUNC_map_lookup_elem),
6154 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6155 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6156 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6157 BPF_MOV64_IMM(BPF_REG_2, -1),
6158 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
6159 BPF_MOV64_IMM(BPF_REG_8, 0),
6160 BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_1),
6161 BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
6162 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
6163 BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
6164 BPF_MOV64_IMM(BPF_REG_0, 0),
6165 BPF_EXIT_INSN(),
6166 },
6167 .fixup_map1 = { 3 },
6168 .errstr = "R8 invalid mem access 'inv'",
6169 .result = REJECT,
6170 },
6171 {
6172 "bounds checks mixing signed and unsigned, variant 3",
6173 .insns = {
6174 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6175 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6176 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6177 BPF_LD_MAP_FD(BPF_REG_1, 0),
6178 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6179 BPF_FUNC_map_lookup_elem),
6180 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
6181 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6182 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6183 BPF_MOV64_IMM(BPF_REG_2, -1),
6184 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 4),
6185 BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
6186 BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2),
6187 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8),
6188 BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
6189 BPF_MOV64_IMM(BPF_REG_0, 0),
6190 BPF_EXIT_INSN(),
6191 },
6192 .fixup_map1 = { 3 },
6193 .errstr = "R8 invalid mem access 'inv'",
6194 .result = REJECT,
6195 },
6196 {
6197 "bounds checks mixing signed and unsigned, variant 4",
6198 .insns = {
6199 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6200 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6201 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6202 BPF_LD_MAP_FD(BPF_REG_1, 0),
6203 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6204 BPF_FUNC_map_lookup_elem),
6205 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
6206 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6207 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6208 BPF_MOV64_IMM(BPF_REG_2, 1),
6209 BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2),
6210 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6211 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6212 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6213 BPF_MOV64_IMM(BPF_REG_0, 0),
6214 BPF_EXIT_INSN(),
6215 },
6216 .fixup_map1 = { 3 },
6217 .result = ACCEPT,
6218 },
6219 {
6220 "bounds checks mixing signed and unsigned, variant 5",
6221 .insns = {
6222 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6223 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6224 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6225 BPF_LD_MAP_FD(BPF_REG_1, 0),
6226 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6227 BPF_FUNC_map_lookup_elem),
6228 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6229 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6230 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6231 BPF_MOV64_IMM(BPF_REG_2, -1),
6232 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5),
6233 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 4),
6234 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4),
6235 BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1),
6236 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6237 BPF_MOV64_IMM(BPF_REG_0, 0),
6238 BPF_EXIT_INSN(),
6239 },
6240 .fixup_map1 = { 3 },
6241 .errstr = "R0 min value is negative",
6242 .result = REJECT,
6243 },
6244 {
6245 "bounds checks mixing signed and unsigned, variant 6",
6246 .insns = {
6247 BPF_MOV64_IMM(BPF_REG_2, 0),
6248 BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
6249 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -512),
6250 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6251 BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -16),
6252 BPF_MOV64_IMM(BPF_REG_6, -1),
6253 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_6, 5),
6254 BPF_JMP_IMM(BPF_JSGT, BPF_REG_4, 1, 4),
6255 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1),
6256 BPF_MOV64_IMM(BPF_REG_5, 0),
6257 BPF_ST_MEM(BPF_H, BPF_REG_10, -512, 0),
6258 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6259 BPF_FUNC_skb_load_bytes),
6260 BPF_MOV64_IMM(BPF_REG_0, 0),
6261 BPF_EXIT_INSN(),
6262 },
6263 .errstr = "R4 min value is negative, either use unsigned",
6264 .result = REJECT,
6265 },
6266 {
6267 "bounds checks mixing signed and unsigned, variant 7",
6268 .insns = {
6269 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6270 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6271 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6272 BPF_LD_MAP_FD(BPF_REG_1, 0),
6273 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6274 BPF_FUNC_map_lookup_elem),
6275 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7),
6276 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6277 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6278 BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024),
6279 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3),
6280 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6281 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6282 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6283 BPF_MOV64_IMM(BPF_REG_0, 0),
6284 BPF_EXIT_INSN(),
6285 },
6286 .fixup_map1 = { 3 },
6287 .result = ACCEPT,
6288 },
6289 {
6290 "bounds checks mixing signed and unsigned, variant 8",
6291 .insns = {
6292 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6293 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6294 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6295 BPF_LD_MAP_FD(BPF_REG_1, 0),
6296 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6297 BPF_FUNC_map_lookup_elem),
6298 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6299 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6300 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6301 BPF_MOV64_IMM(BPF_REG_2, -1),
6302 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
6303 BPF_MOV64_IMM(BPF_REG_0, 0),
6304 BPF_EXIT_INSN(),
6305 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6306 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6307 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6308 BPF_MOV64_IMM(BPF_REG_0, 0),
6309 BPF_EXIT_INSN(),
6310 },
6311 .fixup_map1 = { 3 },
6312 .errstr = "R0 min value is negative",
6313 .result = REJECT,
6314 },
6315 {
6316 "bounds checks mixing signed and unsigned, variant 9",
6317 .insns = {
6318 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6319 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6320 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6321 BPF_LD_MAP_FD(BPF_REG_1, 0),
6322 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6323 BPF_FUNC_map_lookup_elem),
6324 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
6325 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6326 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6327 BPF_LD_IMM64(BPF_REG_2, -9223372036854775808ULL),
6328 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
6329 BPF_MOV64_IMM(BPF_REG_0, 0),
6330 BPF_EXIT_INSN(),
6331 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6332 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6333 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6334 BPF_MOV64_IMM(BPF_REG_0, 0),
6335 BPF_EXIT_INSN(),
6336 },
6337 .fixup_map1 = { 3 },
6338 .result = ACCEPT,
6339 },
6340 {
6341 "bounds checks mixing signed and unsigned, variant 10",
6342 .insns = {
6343 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6344 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6345 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6346 BPF_LD_MAP_FD(BPF_REG_1, 0),
6347 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6348 BPF_FUNC_map_lookup_elem),
6349 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6350 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6351 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6352 BPF_MOV64_IMM(BPF_REG_2, 0),
6353 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2),
6354 BPF_MOV64_IMM(BPF_REG_0, 0),
6355 BPF_EXIT_INSN(),
6356 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6357 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6358 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6359 BPF_MOV64_IMM(BPF_REG_0, 0),
6360 BPF_EXIT_INSN(),
6361 },
6362 .fixup_map1 = { 3 },
6363 .errstr = "R0 min value is negative",
6364 .result = REJECT,
6365 },
6366 {
6367 "bounds checks mixing signed and unsigned, variant 11",
6368 .insns = {
6369 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6370 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6371 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6372 BPF_LD_MAP_FD(BPF_REG_1, 0),
6373 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6374 BPF_FUNC_map_lookup_elem),
6375 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6376 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6377 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6378 BPF_MOV64_IMM(BPF_REG_2, -1),
6379 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
6380 /* Dead branch. */
6381 BPF_MOV64_IMM(BPF_REG_0, 0),
6382 BPF_EXIT_INSN(),
6383 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6384 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6385 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6386 BPF_MOV64_IMM(BPF_REG_0, 0),
6387 BPF_EXIT_INSN(),
6388 },
6389 .fixup_map1 = { 3 },
6390 .errstr = "R0 min value is negative",
6391 .result = REJECT,
6392 },
6393 {
6394 "bounds checks mixing signed and unsigned, variant 12",
6395 .insns = {
6396 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6397 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6398 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6399 BPF_LD_MAP_FD(BPF_REG_1, 0),
6400 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6401 BPF_FUNC_map_lookup_elem),
6402 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6403 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6404 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6405 BPF_MOV64_IMM(BPF_REG_2, -6),
6406 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
6407 BPF_MOV64_IMM(BPF_REG_0, 0),
6408 BPF_EXIT_INSN(),
6409 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6410 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6411 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6412 BPF_MOV64_IMM(BPF_REG_0, 0),
6413 BPF_EXIT_INSN(),
6414 },
6415 .fixup_map1 = { 3 },
6416 .errstr = "R0 min value is negative",
6417 .result = REJECT,
6418 },
6419 {
6420 "bounds checks mixing signed and unsigned, variant 13",
6421 .insns = {
6422 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6423 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6424 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6425 BPF_LD_MAP_FD(BPF_REG_1, 0),
6426 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6427 BPF_FUNC_map_lookup_elem),
6428 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
6429 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6430 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6431 BPF_MOV64_IMM(BPF_REG_2, 2),
6432 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
6433 BPF_MOV64_IMM(BPF_REG_7, 1),
6434 BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 0, 2),
6435 BPF_MOV64_IMM(BPF_REG_0, 0),
6436 BPF_EXIT_INSN(),
6437 BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_1),
6438 BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 4, 2),
6439 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_7),
6440 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6441 BPF_MOV64_IMM(BPF_REG_0, 0),
6442 BPF_EXIT_INSN(),
6443 },
6444 .fixup_map1 = { 3 },
6445 .errstr = "R0 min value is negative",
6446 .result = REJECT,
6447 },
6448 {
6449 "bounds checks mixing signed and unsigned, variant 14",
6450 .insns = {
6451 BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_1,
6452 offsetof(struct __sk_buff, mark)),
6453 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6454 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6455 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6456 BPF_LD_MAP_FD(BPF_REG_1, 0),
6457 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6458 BPF_FUNC_map_lookup_elem),
6459 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
6460 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6461 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6462 BPF_MOV64_IMM(BPF_REG_2, -1),
6463 BPF_MOV64_IMM(BPF_REG_8, 2),
6464 BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 42, 6),
6465 BPF_JMP_REG(BPF_JSGT, BPF_REG_8, BPF_REG_1, 3),
6466 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2),
6467 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6468 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6469 BPF_MOV64_IMM(BPF_REG_0, 0),
6470 BPF_EXIT_INSN(),
6471 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, -3),
6472 BPF_JMP_IMM(BPF_JA, 0, 0, -7),
6473 },
6474 .fixup_map1 = { 4 },
6475 .errstr = "R0 min value is negative",
6476 .result = REJECT,
6477 },
6478 {
6479 "bounds checks mixing signed and unsigned, variant 15",
6480 .insns = {
6481 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6482 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6483 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6484 BPF_LD_MAP_FD(BPF_REG_1, 0),
6485 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6486 BPF_FUNC_map_lookup_elem),
6487 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
6488 BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8),
6489 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16),
6490 BPF_MOV64_IMM(BPF_REG_2, -6),
6491 BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2),
6492 BPF_MOV64_IMM(BPF_REG_0, 0),
6493 BPF_EXIT_INSN(),
6494 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6495 BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 1, 2),
6496 BPF_MOV64_IMM(BPF_REG_0, 0),
6497 BPF_EXIT_INSN(),
6498 BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
6499 BPF_MOV64_IMM(BPF_REG_0, 0),
6500 BPF_EXIT_INSN(),
6501 },
6502 .fixup_map1 = { 3 },
6503 .errstr_unpriv = "R0 pointer comparison prohibited",
6504 .errstr = "R0 min value is negative",
6505 .result = REJECT,
6506 .result_unpriv = REJECT,
6507 },
6508 {
6509 "subtraction bounds (map value) variant 1",
6510 .insns = {
6511 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6512 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6513 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6514 BPF_LD_MAP_FD(BPF_REG_1, 0),
6515 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6516 BPF_FUNC_map_lookup_elem),
6517 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
6518 BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
6519 BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 7),
6520 BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1),
6521 BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 5),
6522 BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3),
6523 BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 56),
6524 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6525 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
6526 BPF_EXIT_INSN(),
6527 BPF_MOV64_IMM(BPF_REG_0, 0),
6528 BPF_EXIT_INSN(),
6529 },
6530 .fixup_map1 = { 3 },
6531 .errstr = "R0 max value is outside of the array range",
6532 .result = REJECT,
6533 },
6534 {
6535 "subtraction bounds (map value) variant 2",
6536 .insns = {
6537 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6538 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6539 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6540 BPF_LD_MAP_FD(BPF_REG_1, 0),
6541 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6542 BPF_FUNC_map_lookup_elem),
6543 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
6544 BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
6545 BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 6),
6546 BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1),
6547 BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 4),
6548 BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3),
6549 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6550 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
6551 BPF_EXIT_INSN(),
6552 BPF_MOV64_IMM(BPF_REG_0, 0),
6553 BPF_EXIT_INSN(),
6554 },
6555 .fixup_map1 = { 3 },
6556 .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.",
6557 .result = REJECT,
6558 },
6559 {
6560 "variable-offset ctx access",
6561 .insns = {
6562 /* Get an unknown value */
6563 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
6564 /* Make it small and 4-byte aligned */
6565 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
6566 /* add it to skb. We now have either &skb->len or
6567 * &skb->pkt_type, but we don't know which
6568 */
6569 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
6570 /* dereference it */
6571 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
6572 BPF_EXIT_INSN(),
6573 },
6574 .errstr = "variable ctx access var_off=(0x0; 0x4)",
6575 .result = REJECT,
6576 .prog_type = BPF_PROG_TYPE_LWT_IN,
6577 },
6578 {
6579 "variable-offset stack access",
6580 .insns = {
6581 /* Fill the top 8 bytes of the stack */
6582 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6583 /* Get an unknown value */
6584 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
6585 /* Make it small and 4-byte aligned */
6586 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4),
6587 BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 8),
6588 /* add it to fp. We now have either fp-4 or fp-8, but
6589 * we don't know which
6590 */
6591 BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10),
6592 /* dereference it */
6593 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 0),
6594 BPF_EXIT_INSN(),
6595 },
6596 .errstr = "variable stack access var_off=(0xfffffffffffffff8; 0x4)",
6597 .result = REJECT,
6598 .prog_type = BPF_PROG_TYPE_LWT_IN,
6599 },
6600 {
6601 "liveness pruning and write screening",
6602 .insns = {
6603 /* Get an unknown value */
6604 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
6605 /* branch conditions teach us nothing about R2 */
6606 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
6607 BPF_MOV64_IMM(BPF_REG_0, 0),
6608 BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
6609 BPF_MOV64_IMM(BPF_REG_0, 0),
6610 BPF_EXIT_INSN(),
6611 },
6612 .errstr = "R0 !read_ok",
6613 .result = REJECT,
6614 .prog_type = BPF_PROG_TYPE_LWT_IN,
6615 },
6616 {
6617 "varlen_map_value_access pruning",
6618 .insns = {
6619 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
6620 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
6621 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
6622 BPF_LD_MAP_FD(BPF_REG_1, 0),
6623 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
6624 BPF_FUNC_map_lookup_elem),
6625 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8),
6626 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
6627 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES),
6628 BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1),
6629 BPF_MOV32_IMM(BPF_REG_1, 0),
6630 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2),
6631 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
6632 BPF_JMP_IMM(BPF_JA, 0, 0, 0),
6633 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0,
6634 offsetof(struct test_val, foo)),
6635 BPF_EXIT_INSN(),
6636 },
6637 .fixup_map2 = { 3 },
6638 .errstr_unpriv = "R0 leaks addr",
6639 .errstr = "R0 unbounded memory access",
6640 .result_unpriv = REJECT,
6641 .result = REJECT,
6642 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
6643 },
6644 {
6645 "invalid 64-bit BPF_END",
6646 .insns = {
6647 BPF_MOV32_IMM(BPF_REG_0, 0),
6648 {
6649 .code = BPF_ALU64 | BPF_END | BPF_TO_LE,
6650 .dst_reg = BPF_REG_0,
6651 .src_reg = 0,
6652 .off = 0,
6653 .imm = 32,
6654 },
6655 BPF_EXIT_INSN(),
6656 },
6657 .errstr = "BPF_END uses reserved fields",
6658 .result = REJECT,
6659 },
6660 {
6661 "arithmetic ops make PTR_TO_CTX unusable",
6662 .insns = {
6663 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
6664 offsetof(struct __sk_buff, data) -
6665 offsetof(struct __sk_buff, mark)),
6666 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
6667 offsetof(struct __sk_buff, mark)),
6668 BPF_EXIT_INSN(),
6669 },
6670 .errstr = "dereference of modified ctx ptr R1 off=68+8, ctx+const is allowed, ctx+const+const is not",
6671 .result = REJECT,
6672 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
6673 },
6674 };
6675
6676 static int probe_filter_length(const struct bpf_insn *fp)
6677 {
6678 int len;
6679
6680 for (len = MAX_INSNS - 1; len > 0; --len)
6681 if (fp[len].code != 0 || fp[len].imm != 0)
6682 break;
6683 return len + 1;
6684 }
6685
6686 static int create_map(uint32_t size_value, uint32_t max_elem)
6687 {
6688 int fd;
6689
6690 fd = bpf_create_map(BPF_MAP_TYPE_HASH, sizeof(long long),
6691 size_value, max_elem, BPF_F_NO_PREALLOC);
6692 if (fd < 0)
6693 printf("Failed to create hash map '%s'!\n", strerror(errno));
6694
6695 return fd;
6696 }
6697
6698 static int create_prog_array(void)
6699 {
6700 int fd;
6701
6702 fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int),
6703 sizeof(int), 4, 0);
6704 if (fd < 0)
6705 printf("Failed to create prog array '%s'!\n", strerror(errno));
6706
6707 return fd;
6708 }
6709
6710 static int create_map_in_map(void)
6711 {
6712 int inner_map_fd, outer_map_fd;
6713
6714 inner_map_fd = bpf_create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
6715 sizeof(int), 1, 0);
6716 if (inner_map_fd < 0) {
6717 printf("Failed to create array '%s'!\n", strerror(errno));
6718 return inner_map_fd;
6719 }
6720
6721 outer_map_fd = bpf_create_map_in_map(BPF_MAP_TYPE_ARRAY_OF_MAPS,
6722 sizeof(int), inner_map_fd, 1, 0);
6723 if (outer_map_fd < 0)
6724 printf("Failed to create array of maps '%s'!\n",
6725 strerror(errno));
6726
6727 close(inner_map_fd);
6728
6729 return outer_map_fd;
6730 }
6731
6732 static char bpf_vlog[32768];
6733
6734 static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog,
6735 int *map_fds)
6736 {
6737 int *fixup_map1 = test->fixup_map1;
6738 int *fixup_map2 = test->fixup_map2;
6739 int *fixup_prog = test->fixup_prog;
6740 int *fixup_map_in_map = test->fixup_map_in_map;
6741
6742 /* Allocating HTs with 1 elem is fine here, since we only test
6743 * for verifier and not do a runtime lookup, so the only thing
6744 * that really matters is value size in this case.
6745 */
6746 if (*fixup_map1) {
6747 map_fds[0] = create_map(sizeof(long long), 1);
6748 do {
6749 prog[*fixup_map1].imm = map_fds[0];
6750 fixup_map1++;
6751 } while (*fixup_map1);
6752 }
6753
6754 if (*fixup_map2) {
6755 map_fds[1] = create_map(sizeof(struct test_val), 1);
6756 do {
6757 prog[*fixup_map2].imm = map_fds[1];
6758 fixup_map2++;
6759 } while (*fixup_map2);
6760 }
6761
6762 if (*fixup_prog) {
6763 map_fds[2] = create_prog_array();
6764 do {
6765 prog[*fixup_prog].imm = map_fds[2];
6766 fixup_prog++;
6767 } while (*fixup_prog);
6768 }
6769
6770 if (*fixup_map_in_map) {
6771 map_fds[3] = create_map_in_map();
6772 do {
6773 prog[*fixup_map_in_map].imm = map_fds[3];
6774 fixup_map_in_map++;
6775 } while (*fixup_map_in_map);
6776 }
6777 }
6778
6779 static void do_test_single(struct bpf_test *test, bool unpriv,
6780 int *passes, int *errors)
6781 {
6782 int fd_prog, expected_ret, reject_from_alignment;
6783 struct bpf_insn *prog = test->insns;
6784 int prog_len = probe_filter_length(prog);
6785 int prog_type = test->prog_type;
6786 int map_fds[MAX_NR_MAPS];
6787 const char *expected_err;
6788 int i;
6789
6790 for (i = 0; i < MAX_NR_MAPS; i++)
6791 map_fds[i] = -1;
6792
6793 do_test_fixup(test, prog, map_fds);
6794
6795 fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER,
6796 prog, prog_len, test->flags & F_LOAD_WITH_STRICT_ALIGNMENT,
6797 "GPL", 0, bpf_vlog, sizeof(bpf_vlog), 1);
6798
6799 expected_ret = unpriv && test->result_unpriv != UNDEF ?
6800 test->result_unpriv : test->result;
6801 expected_err = unpriv && test->errstr_unpriv ?
6802 test->errstr_unpriv : test->errstr;
6803
6804 reject_from_alignment = fd_prog < 0 &&
6805 (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS) &&
6806 strstr(bpf_vlog, "Unknown alignment.");
6807 #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
6808 if (reject_from_alignment) {
6809 printf("FAIL\nFailed due to alignment despite having efficient unaligned access: '%s'!\n",
6810 strerror(errno));
6811 goto fail_log;
6812 }
6813 #endif
6814 if (expected_ret == ACCEPT) {
6815 if (fd_prog < 0 && !reject_from_alignment) {
6816 printf("FAIL\nFailed to load prog '%s'!\n",
6817 strerror(errno));
6818 goto fail_log;
6819 }
6820 } else {
6821 if (fd_prog >= 0) {
6822 printf("FAIL\nUnexpected success to load!\n");
6823 goto fail_log;
6824 }
6825 if (!strstr(bpf_vlog, expected_err) && !reject_from_alignment) {
6826 printf("FAIL\nUnexpected error message!\n");
6827 goto fail_log;
6828 }
6829 }
6830
6831 (*passes)++;
6832 printf("OK%s\n", reject_from_alignment ?
6833 " (NOTE: reject due to unknown alignment)" : "");
6834 close_fds:
6835 close(fd_prog);
6836 for (i = 0; i < MAX_NR_MAPS; i++)
6837 close(map_fds[i]);
6838 sched_yield();
6839 return;
6840 fail_log:
6841 (*errors)++;
6842 printf("%s", bpf_vlog);
6843 goto close_fds;
6844 }
6845
6846 static bool is_admin(void)
6847 {
6848 cap_t caps;
6849 cap_flag_value_t sysadmin = CAP_CLEAR;
6850 const cap_value_t cap_val = CAP_SYS_ADMIN;
6851
6852 #ifdef CAP_IS_SUPPORTED
6853 if (!CAP_IS_SUPPORTED(CAP_SETFCAP)) {
6854 perror("cap_get_flag");
6855 return false;
6856 }
6857 #endif
6858 caps = cap_get_proc();
6859 if (!caps) {
6860 perror("cap_get_proc");
6861 return false;
6862 }
6863 if (cap_get_flag(caps, cap_val, CAP_EFFECTIVE, &sysadmin))
6864 perror("cap_get_flag");
6865 if (cap_free(caps))
6866 perror("cap_free");
6867 return (sysadmin == CAP_SET);
6868 }
6869
6870 static int set_admin(bool admin)
6871 {
6872 cap_t caps;
6873 const cap_value_t cap_val = CAP_SYS_ADMIN;
6874 int ret = -1;
6875
6876 caps = cap_get_proc();
6877 if (!caps) {
6878 perror("cap_get_proc");
6879 return -1;
6880 }
6881 if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_val,
6882 admin ? CAP_SET : CAP_CLEAR)) {
6883 perror("cap_set_flag");
6884 goto out;
6885 }
6886 if (cap_set_proc(caps)) {
6887 perror("cap_set_proc");
6888 goto out;
6889 }
6890 ret = 0;
6891 out:
6892 if (cap_free(caps))
6893 perror("cap_free");
6894 return ret;
6895 }
6896
6897 static int do_test(bool unpriv, unsigned int from, unsigned int to)
6898 {
6899 int i, passes = 0, errors = 0;
6900
6901 for (i = from; i < to; i++) {
6902 struct bpf_test *test = &tests[i];
6903
6904 /* Program types that are not supported by non-root we
6905 * skip right away.
6906 */
6907 if (!test->prog_type) {
6908 if (!unpriv)
6909 set_admin(false);
6910 printf("#%d/u %s ", i, test->descr);
6911 do_test_single(test, true, &passes, &errors);
6912 if (!unpriv)
6913 set_admin(true);
6914 }
6915
6916 if (!unpriv) {
6917 printf("#%d/p %s ", i, test->descr);
6918 do_test_single(test, false, &passes, &errors);
6919 }
6920 }
6921
6922 printf("Summary: %d PASSED, %d FAILED\n", passes, errors);
6923 return errors ? EXIT_FAILURE : EXIT_SUCCESS;
6924 }
6925
6926 int main(int argc, char **argv)
6927 {
6928 struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY };
6929 struct rlimit rlim = { 1 << 20, 1 << 20 };
6930 unsigned int from = 0, to = ARRAY_SIZE(tests);
6931 bool unpriv = !is_admin();
6932
6933 if (argc == 3) {
6934 unsigned int l = atoi(argv[argc - 2]);
6935 unsigned int u = atoi(argv[argc - 1]);
6936
6937 if (l < to && u < to) {
6938 from = l;
6939 to = u + 1;
6940 }
6941 } else if (argc == 2) {
6942 unsigned int t = atoi(argv[argc - 1]);
6943
6944 if (t < to) {
6945 from = t;
6946 to = t + 1;
6947 }
6948 }
6949
6950 setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf);
6951 return do_test(unpriv, from, to);
6952 }