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lkdtm: Test VMAP_STACK allocates leading/trailing guard pages
authorKees Cook <keescook@chromium.org>
Fri, 4 Aug 2017 20:04:21 +0000 (13:04 -0700)
committerKees Cook <keescook@chromium.org>
Fri, 4 Aug 2017 20:04:21 +0000 (13:04 -0700)
commit7b25a85c9d9f796c5be7ad3fb8b9553d3e2ed958
tree8917e901a8728c16f8e848227fbd6e3601019830tree | snapshot (tar.gz zip)
parentc7fea48876773603721f545f8c1a2f894291ef85commit | diff
lkdtm: Test VMAP_STACK allocates leading/trailing guard pages

Two new tests STACK_GUARD_PAGE_LEADING and STACK_GUARD_PAGE_TRAILING
attempt to read the byte before and after, respectively, of the current
stack frame, which should fault.

Signed-off-by: Kees Cook <keescook@chromium.org>
drivers/misc/lkdtm.h diff | blob | blame | history
drivers/misc/lkdtm_bugs.c diff | blob | blame | history
drivers/misc/lkdtm_core.c diff | blob | blame | history