shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 02:21:52 +09:00
Code Issues Packages Projects Releases Wiki Activity

ksmbd: fix unexpectedly changed path in ksmbd_vfs_kern_path_locked

Browse Source 
[ Upstream commit 2ac538e40278a2c0c051cca81bcaafc547d61372 ]

When `ksmbd_vfs_kern_path_locked` met an error and it is not the last
entry, it will exit without restoring changed path buffer. But later this
buffer may be used as the filename for creation.

Fixes: c5a709f08d40 ("ksmbd: handle caseless file creation")
Signed-off-by: He Wang <xw897002528@gmail.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
He Wang
2025-01-06 03:39:54 +00:00
committed by Greg Kroah-Hartman
parent aabe47cf5a
commit 13e41c58c7
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
fs/smb/server/vfs.c
View File

@@ -1249,6 +1249,8 @@ int ksmbd_vfs_kern_path_locked(struct ksmbd_work *work, char *name,
filepath,
flags,
path);
if (!is_last)
next[0] = '/';
if (err)
goto out2;
else if (is_last)
@@ -1256,7 +1258,6 @@ int ksmbd_vfs_kern_path_locked(struct ksmbd_work *work, char *name,
path_put(parent_path);
*parent_path = *path;
next[0] = '/';
remain_len -= filename_len + 1;
}