From: roel kluin <roel.kluin@gmail.com>
Date: Fri, 31 Jul 2009 03:43:59 +0000 (+0000)
Subject: mISDN: Read buffer overflow
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9bfdac94c78faf68ce038d5c45a385927f2667ce;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

mISDN: Read buffer overflow

Check whether index is within bounds before testing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 990e6a7e6674..0ebce046ade4 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -1480,7 +1480,7 @@ l1oip_init(void)
 		return -ENOMEM;
 
 	l1oip_cnt = 0;
-	while (type[l1oip_cnt] && l1oip_cnt < MAX_CARDS) {
+	while (l1oip_cnt < MAX_CARDS && type[l1oip_cnt]) {
 		switch (type[l1oip_cnt] & 0xff) {
 		case 1:
 			pri = 0;