On Mon, 19 Aug 2019, Daniel Wagner wrote:
> 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@xxxxxxxxx>
> ---
> 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
>
Signed-off-by: John Kacur <jkacur@xxxxxxxxxx>
