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authorChen Gang <gang.chen@asianux.com>2013-07-03 15:04:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:41 -0700
commit98bd8d05ea5798ff3179ee33f0ca2789722ecc5a (patch)
tree370a982aa598bdf50f31ab0f3b3cccba62143ddc
parent760033c45e8aa13c9e02530da7274edc624c7689 (diff)
downloadlinux-98bd8d05ea5798ff3179ee33f0ca2789722ecc5a.tar.gz
arch/frv/kernel/setup.c: use strncmp() instead of memcmp()
'cmdline' is a NUL terminated string, when its length < 4, memcmp() will cause memory access out of boundary. So use strncmp() instead of memcmp(). Signed-off-by: Chen Gang <gang.chen@asianux.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/frv/kernel/setup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/frv/kernel/setup.c b/arch/frv/kernel/setup.c
index f78f8cb4409..ae3a6706419 100644
--- a/arch/frv/kernel/setup.c
+++ b/arch/frv/kernel/setup.c
@@ -735,7 +735,7 @@ static void __init parse_cmdline_early(char *cmdline)
/* "mem=XXX[kKmM]" sets SDRAM size to <mem>, overriding the value we worked
* out from the SDRAM controller mask register
*/
- if (!memcmp(cmdline, "mem=", 4)) {
+ if (!strncmp(cmdline, "mem=", 4)) {
unsigned long long mem_size;
mem_size = memparse(cmdline + 4, &cmdline);