[PATCH 3/4] rt-tests: deadline_tests: fix stack buffer flow

Kurt Kanzenbach
2019-04-04T13:48:45Z

The appended string is actually longer than 14 characters. Use strlen() to
compute the correct length like the other functions do.

Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
---
src/sched_deadline/deadline_test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sched_deadline/deadline_test.c b/src/sched_deadline/deadline_test.c
index b213c206559c..4826557d0624 100644
--- a/src/sched_deadline/deadline_test.c
+++ b/src/sched_deadline/deadline_test.c
@@ -435,7 +435,7 @@ static void setup_ftrace_marker(void)
{
struct stat st;
const char *debugfs = find_debugfs();
- char files[strlen(debugfs) + 14];
+ char files[strlen(debugfs) + strlen("/tracing/trace_marker") + 1];
int ret;

if (strlen(debugfs) == 0)
--
2.11.0