samples/bpf: Fix a resource leak

[ Upstream commit f3ef531 ] The opened file should be closed in show_sockopts(), otherwise resource leak will occur that this problem was discovered by reading code Signed-off-by: Zhu Jun <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Link: https://lore.kernel.org/bpf/[email protected] Signed-off-by: Sasha Levin <[email protected]>
tombl · Dec 14, 2024 · 039daf6 · 039daf6
1 parent 77f1682
commit 039daf6
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/samples/bpf/test_cgrp2_sock.c b/samples/bpf/test_cgrp2_sock.c
@@ -178,8 +178,10 @@ static int show_sockopts(int family)
 		return 1;
 	}
 
-	if (get_bind_to_device(sd, name, sizeof(name)) < 0)
+	if (get_bind_to_device(sd, name, sizeof(name)) < 0) {
+		close(sd);
 		return 1;
+	}
 
 	mark = get_somark(sd);
 	prio = get_priority(sd);