iSulad/0013-Add-parameter-check-to-path.patch

From 45824723bf3968a1106089fb0572ad6a593ac62e Mon Sep 17 00:00:00 2001
From: zhongtao <taozh97@163.com>
Date: Mon, 17 Oct 2022 15:15:49 +0800
Subject: [PATCH 13/43] Add parameter check to path

Signed-off-by: zhongtao <taozh97@163.com>
---
 src/utils/cutils/path.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/utils/cutils/path.c b/src/utils/cutils/path.c
index 79cd7af6..5a743632 100644
--- a/src/utils/cutils/path.c
+++ b/src/utils/cutils/path.c
@@ -733,6 +733,12 @@ int util_realpath_in_scope(const char *rootfs, const char *path, char **real_pat
     char cleaned[PATH_MAX] = { 0 };
     char *tmp = NULL;
 
+    if (rootfs == NULL || path == NULL || real_path == NULL) {
+        ERROR("Null parameter");
+        ret = -1;
+        goto out;
+    }
+
     int nret = snprintf(full_path, sizeof(full_path), "%s%s", rootfs, path);
     if (nret < 0 || (size_t)nret >= sizeof(full_path)) {
         ERROR("sprintf error: %s", strerror(errno));
-- 
2.25.1