mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-01-13 09:22:35 -05:00
Code Issues Packages Projects Releases Wiki Activity

ksmbd: fix NULL pointer dereference in smb2_get_info_filesystem()

Browse Source 
If share is , share->path is NULL and it cause NULL pointer
dereference issue.

Cc: stable@vger.kernel.org
Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-20479
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Namjae Jeon
2023-05-03 08:38:33 +09:00
committed by Steve French
parent 6d7cb549c2
commit 3ac00a2ab6
1 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
fs/ksmbd/smb2pdu.c
View File

@@ -4885,6 +4885,9 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
int rc = 0, len;
int fs_infoclass_size = 0;
if (!share->path)
return -EIO;
rc = kern_path(share->path, LOOKUP_NO_SYMLINKS, &path);
if (rc) {
pr_err("cannot create vfs path\n");