Messages in this thread Patch in this message | | | From | Tommi Rantala <> | Subject | [PATCH 3/6] perf tests: do not assume that readlink() returns a null terminated string | Date | Wed, 22 Mar 2017 15:06:21 +0200 |
| |
Ensure that the string in buf is null terminated.
Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com> --- tools/perf/tests/sdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/tests/sdt.c b/tools/perf/tests/sdt.c index f59d210..121949a 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; -- 2.9.3
| |