From: Steve French <stfrench@microsoft.com>
Date: Sat, 7 Dec 2019 17:38:22 -0600
Subject: [PATCH] smb3: improve check for when we send the security descriptor
context on create
Git-commit: 231e2a0ba56733c95cb77d8920e76502b2134e72
References: bsc#1144333
Patch-mainline: v5.5-rc1
We had cases in the previous patch where we were sending the security
descriptor context on SMB3 open (file create) in cases when we hadn't
mounted with with "modefromsid" mount option.
Add check for that mount flag before calling ad_sd_context in
open init.
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Acked-by: Paulo Alcantara <palcantara@suse.de>
---
fs/cifs/smb2pdu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index b77643e02157..0ab6b1200288 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2630,6 +2630,8 @@ SMB2_open_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, __u8 *oplock,
}
if ((oparms->disposition != FILE_OPEN) &&
+ (oparms->cifs_sb) &&
+ (oparms->cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MODE_FROM_SID) &&
(oparms->mode != ACL_NO_MODE)) {
if (n_iov > 2) {
struct create_context *ccontext =
--
2.25.1