diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index f0ca69f888fa..b1cb501fb577 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -9638,7 +9638,7 @@ static int check_reg_const_str(struct bpf_verifier_env *env,
 	}
 
 	str_ptr = (char *)(long)(map_addr);
-	if (!strnchr(str_ptr + map_off, map->value_size - map_off, 0)) {
+	if (!strnchr(str_ptr, map->value_size - map_off, 0)) {
 		verbose(env, "string is not zero-terminated\n");
 		return -EINVAL;
 	}