Commit a65c2342 authored Dec 25, 2012 by Thomas Jarosch Committed by Arnaldo Carvalho de Melo Jan 24, 2013

perf tools: Fix possible (unlikely) buffer overflow



cppcheck reported:
[tools/perf/util/sysfs.c:50]: (error) Width 4096 given in format string
(no. 1) is larger than destination buffer 'sysfs_mountpoint[4096]',
use %4095s to prevent overflowing it

-> All other places in the kernel that use STR(PATH_MAX)
   have a buffer size of PATH_MAX + 1.

Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Link: http://lkml.kernel.org/r/50D9D30B.8090002@intra2net.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 31160d7f

tools/perf/util/sysfs.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -8,7 +8,7 @@ static const char * const sysfs_known_mountpoints[] = {
		};

		static int sysfs_found;
		char sysfs_mountpoint[PATH_MAX];
		char sysfs_mountpoint[PATH_MAX + 1];

		static int sysfs_valid_mountpoint(const char *sysfs)
		{