From 8e6f3f1bfb45a1de9247a3ff5361811a8df8c895 Mon Sep 17 00:00:00 2001
From: Far <yesiyuan2@huawei.com>
Date: Tue, 11 Jan 2022 16:03:17 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8Dfutime=E6=8F=90?=
 =?UTF-8?q?=E7=A4=BA=E9=94=99=E8=AF=AF22=E7=9A=84BUG?=
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调用futime时，系统调用接口函数直接使用了file结构体的f_path字段，该字段在退出前被错误地释放了。
避免该问题需要拷贝一份路径

Signed-off-by: Far <yesiyuan2@huawei.com>
Change-Id: Ic0f8e608363da3ed15e252a3f91c46e8397c245e
---
 syscall/fs_syscall.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/syscall/fs_syscall.c b/syscall/fs_syscall.c
index 55ddf8cd..6977469d 100644
--- a/syscall/fs_syscall.c
+++ b/syscall/fs_syscall.c
@@ -118,7 +118,10 @@ static int GetFullpathNull(int fd, const char *path, char **filePath)
         if (ret < 0) {
             return -get_errno();
         }
-        fullPath = file->f_path;
+        fullPath = strdup(file->f_path);
+        if (fullPath == NULL) {
+            ret = -ENOMEM;
+        }
     } else {
         ret = GetFullpath(fd, path, &fullPath);
         if (ret < 0) {