Messages in this thread Patch in this message | | | From | cgel.zte@gmail ... | Subject | [PATCH linu-next] samples/bpf: use absolute path for dd | Date | Thu, 22 Sep 2022 09:02:31 +0000 |
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From: Xu Panda <xu.panda@zte.com.cn>
Not using absolute path when invoking dd can lead to serious security issues.
Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Xu Panda <xu.panda@zte.com.cn> --- samples/bpf/trace_event_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/samples/bpf/trace_event_user.c b/samples/bpf/trace_event_user.c index 9664749bf618..d841918accc9 100644 --- a/samples/bpf/trace_event_user.c +++ b/samples/bpf/trace_event_user.c @@ -126,7 +126,7 @@ static void print_stacks(void)
static inline int generate_load(void) { - if (system("dd if=/dev/zero of=/dev/null count=5000k status=none") < 0) { + if (system("/usr/bin/dd if=/dev/zero of=/dev/null count=5000k status=none") < 0) { printf("failed to generate some load with dd: %s\n", strerror(errno)); return -1; } -- 2.15.2
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