FAILED: patch "[PATCH] ksmbd: allow write with FILE_APPEND_DATA" failed to apply to 5.15-stable tree

FAILED: patch "[PATCH] ksmbd: allow write with FILE_APPEND_DATA" failed to apply to 5.15-stable tree

[gregkh]

The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 2fb9b5dc80cabcee636a6ccd020740dd925b4580
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2024100133-crablike-static-40ed@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..

Possible dependencies:

2fb9b5dc80ca ("ksmbd: allow write with FILE_APPEND_DATA")
38c8a9a52082 ("smb: move client and server files to common directory fs/smb")
abdb1742a312 ("cifs: get rid of mount options string parsing")
9fd29a5bae6e ("cifs: use fs_context for automounts")
369c1634cc7a ("ksmbd: don't open-code %pD")
5dd8ce24667a ("cifs: missing directory in MAINTAINERS file")
332019e23a51 ("Merge tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 2fb9b5dc80cabcee636a6ccd020740dd925b4580 Mon Sep 17 00:00:00 2001
From: Namjae Jeon <linkinjeon@kernel.org>
Date: Tue, 3 Sep 2024 20:26:33 +0900
Subject: [PATCH] ksmbd: allow write with FILE_APPEND_DATA

Windows client write with FILE_APPEND_DATA when using git.
ksmbd should allow write it with this flags.

Z:\test>git commit -m "test"
fatal: cannot update the ref 'HEAD': unable to append to
 '.git/logs/HEAD': Bad file descriptor

Fixes: 0626e6641f6b ("cifsd: add server handler for central processing and tranport layers")
Cc: stable@vger.kernel.org # v5.15+
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

diff --git a/fs/smb/server/vfs.c b/fs/smb/server/vfs.c
index 9e859ba010cf..19900625d5d2 100644
--- a/fs/smb/server/vfs.c
+++ b/fs/smb/server/vfs.c
@@ -496,7 +496,7 @@ int ksmbd_vfs_write(struct ksmbd_work *work, struct ksmbd_file *fp,
 	int err = 0;
 
 	if (work->conn->connection_type) {
-		if (!(fp->daccess & FILE_WRITE_DATA_LE)) {
+		if (!(fp->daccess & (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE))) {
 			pr_err("no right to write(%pD)\n", fp->filp);
 			err = -EACCES;
 			goto out;