korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-29 14:05:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

ksmbd: fix uninitialized pointer read in ksmbd_vfs_rename()

Browse Source 
[ Upstream commit 48b47f0caa ]

Uninitialized rd.delegated_inode can be used in vfs_rename().
Fix this by setting rd.delegated_inode to NULL to avoid the uninitialized
read.

Fixes: 74d7970feb ("ksmbd: fix racy issue from using ->d_parent and ->d_name")
Reported-by: Coverity Scan <scan-admin@coverity.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Namjae Jeon 2023-12-19 00:33:53 +09:00 committed by Greg Kroah-Hartman
parent b36295c17f
commit ea799dd275
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
fs/ksmbd/vfs.c
View File

@ -743,6 +743,7 @@ retry:
rd.new_dir = new_path.dentry->d_inode,
rd.new_dentry = new_dentry,
rd.flags = flags,
rd.delegated_inode = NULL,
err = vfs_rename(&rd);
if (err)
ksmbd_debug(VFS, "vfs_rename failed err %d\n", err);