diff options
| author | Tommi Rantala <[email protected]> | 2017-03-22 15:06:21 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2017-03-27 15:35:56 -0300 |
| commit | 0e6ba11511aef91ba8e2528ddc681d88922d7b0b (patch) | |
| tree | bfd066a73068f97059534cd3965a29a6041ea2ed | |
| parent | 5a2342111c68e623e27ee7ea3d0492d8dad6bda0 (diff) | |
perf tests: Do not assume that readlink() returns a null terminated string
Ensure that the string in buf is null terminated.
Signed-off-by: Tommi Rantala <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| -rw-r--r-- | tools/perf/tests/sdt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/tests/sdt.c b/tools/perf/tests/sdt.c index f59d210e1baf..26e5b7a0b839 100644 --- a/tools/perf/tests/sdt.c +++ b/tools/perf/tests/sdt.c @@ -43,7 +43,7 @@ static char *get_self_path(void) { char *buf = calloc(PATH_MAX, sizeof(char)); - if (buf && readlink("/proc/self/exe", buf, PATH_MAX) < 0) { + if (buf && readlink("/proc/self/exe", buf, PATH_MAX - 1) < 0) { pr_debug("Failed to get correct path of perf\n"); free(buf); return NULL; |