Commit 98bd8d05 authored Jul 03, 2013 by Chen Gang Committed by Linus Torvalds Jul 03, 2013

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>

parent 760033c4

arch/frv/kernel/setup.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);