diff --git a/samples/seccomp/bpf-fancy.c b/samples/seccomp/bpf-fancy.c
index 8eb483aaec465efcc1f40c70a8c76d179eb094a2..e8b24f443709dd04a3df7c541e26075b12bb1048 100644
--- a/samples/seccomp/bpf-fancy.c
+++ b/samples/seccomp/bpf-fancy.c
@@ -25,7 +25,9 @@
 
 int main(int argc, char **argv)
 {
-	struct bpf_labels l;
+	struct bpf_labels l = {
+		.count = 0,
+	};
 	static const char msg1[] = "Please type something: ";
 	static const char msg2[] = "You typed: ";
 	char buf[256];
diff --git a/samples/seccomp/bpf-helper.c b/samples/seccomp/bpf-helper.c
index 579cfe3318862f360cc45cd440db633e6c6f0664..05cb4d5ff9f5bef632baa98eb687f1781dcb5e5e 100644
--- a/samples/seccomp/bpf-helper.c
+++ b/samples/seccomp/bpf-helper.c
@@ -10,6 +10,7 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 
 #include "bpf-helper.h"
@@ -63,6 +64,11 @@ __u32 seccomp_bpf_label(struct bpf_labels *labels, const char *label)
 {
 	struct __bpf_label *begin = labels->labels, *end;
 	int id;
+
+	if (labels->count == BPF_LABELS_MAX) {
+		fprintf(stderr, "Too many labels\n");
+		exit(1);
+	}
 	if (labels->count == 0) {
 		begin->label = label;
 		begin->location = 0xffffffff;