From 2ba57e55053ef824379e278e6054c2e8465ced62 Mon Sep 17 00:00:00 2001
From: hw_llm <liu.limin@huawei.com>
Date: Fri, 23 Aug 2024 10:27:18 +0800
Subject: [PATCH] =?UTF-8?q?cherry=20pick=20a058649=20from=20https://gitee.?=
 =?UTF-8?q?com/hw=5Fllm/kernel=5Fliteos=5Fa/pulls/1215=20Description:=20sy?=
 =?UTF-8?q?scall=20SysExecve=20=E6=89=A7=E8=A1=8C=E6=BC=8F=E6=B4=9E?=
 =?UTF-8?q?=E4=BF=AE=E5=A4=8D=20IssueNo:=20https://gitee.com/openharmony/k?=
 =?UTF-8?q?ernel=5Fliteos=5Fa/issues/IALXZ5=20Feature=20Or=20Bugfix:=20Bug?=
 =?UTF-8?q?fix=20Binary=20Source:=20No=20Signed-off-by:=20hw=5Fllm=20<liu.?=
 =?UTF-8?q?limin@huawei.com>?=
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---
 syscall/fs_syscall.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/syscall/fs_syscall.c b/syscall/fs_syscall.c
index eec9b5b4..d680cb22 100644
--- a/syscall/fs_syscall.c
+++ b/syscall/fs_syscall.c
@@ -641,6 +641,9 @@ OUT:
 #ifdef LOSCFG_KERNEL_DYNLOAD
 int SysExecve(const char *fileName, char *const *argv, char *const *envp)
 {
+    if (!LOS_IsUserAddress((vaddr_t)(UINTPTR)fileName)) {
+        return -EFAULT;
+    }
     return LOS_DoExecveFile(fileName, argv, envp);
 }
 #endif