From: Daniel Wagner <wagi@monom.org>
To: Clark Williams <williams@redhat.com>, John Kacur <jkacur@redhat.com>
Cc: linux-rt-users@vger.kernel.org, Daniel Wagner <wagi@monom.org>
Subject: [PATCH rt-tests v0 4/4] deadline_test: Increase buffer to avoid overflow
Date: Fri, 16 Aug 2019 08:42:04 +0200 [thread overview]
Message-ID: <20190816064204.6339-5-wagi@monom.org> (raw)
In-Reply-To: <20190816064204.6339-1-wagi@monom.org>
Increase the size of the char buffer. gcc 9.1.1 reports:
src/sched_deadline/deadline_test.c:1803:24: warning: ‘%d’ directive writing between 1 and 11 bytes into a region of size 10 [-Wformat-overflow=]
1803 | sprintf(setcpu_buf, "%d", cpu_count - 1);
| ^~
src/sched_deadline/deadline_test.c:1803:23: note: directive argument in the range [-2147483648, 2147483646]
1803 | sprintf(setcpu_buf, "%d", cpu_count - 1);
| ^~~~
src/sched_deadline/deadline_test.c:1803:3: note: ‘sprintf’ output between 2 and 12 bytes into a destination of size 10
1803 | sprintf(setcpu_buf, "%d", cpu_count - 1);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Daniel Wagner <wagi@monom.org>
---
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 e2898de328bb..5b5f40dbb74d 100644
--- a/src/sched_deadline/deadline_test.c
+++ b/src/sched_deadline/deadline_test.c
@@ -1795,7 +1795,7 @@ int main (int argc, char **argv)
/* -b has us bind to the last CPU. */
if (!all_cpus && !setcpu) {
- setcpu_buf = malloc(10);
+ setcpu_buf = malloc(12);
if (!setcpu_buf) {
perror("malloc");
exit(-1);
--
2.21.0
prev parent reply other threads:[~2019-08-16 6:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-16 6:42 [PATCH rt-tests v0 0/4] Fix gcc warning Daniel Wagner
2019-08-16 6:42 ` [PATCH rt-tests v0 1/4] pmqtest: Increase buffer to avoid overflow Daniel Wagner
2019-08-16 15:41 ` Sebastian Andrzej Siewior
2019-08-19 6:34 ` Daniel Wagner
2019-08-16 6:42 ` [PATCH rt-tests v0 2/4] sigwaittest: " Daniel Wagner
2019-08-16 6:42 ` [PATCH rt-tests v0 3/4] svsematest: " Daniel Wagner
2019-08-16 6:42 ` Daniel Wagner [this message]
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