This is a note to let you know that I've just added the patch titled
cifs: fix missed refcounting of ipc tcon
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cifs-fix-missed-refcounting-of-ipc-tcon.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 65de262a209da0951eb9bc60b3b7faf3bbffa38a Mon Sep 17 00:00:00 2001
From: Paulo Alcantara <pc@xxxxxx>
Date: Thu, 2 Dec 2021 15:29:35 -0300
Subject: cifs: fix missed refcounting of ipc tcon
From: Paulo Alcantara <pc@xxxxxx>
commit 65de262a209da0951eb9bc60b3b7faf3bbffa38a upstream.
Fix missed refcounting of IPC tcon used for getting domain-based DFS
root referrals. We want to keep it alive as long as mount is active
and can be refreshed. For standalone DFS root referrals it wouldn't
be a problem as the client ends up having an IPC tcon for both mount
and cache.
Fixes: c88f7dcd6d64 ("cifs: support nested dfs links over reconnect")
Signed-off-by: Paulo Alcantara (SUSE) <pc@xxxxxx>
Reviewed-by: Enzo Matsumiya <ematsumiya@xxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/cifs/connect.c | 1 +
1 file changed, 1 insertion(+)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3390,6 +3390,7 @@ static int connect_dfs_root(struct mount
*/
mount_put_conns(mnt_ctx);
mount_get_dfs_conns(mnt_ctx);
+ set_root_ses(mnt_ctx);
full_path = build_unc_path_to_root(ctx, cifs_sb, true);
if (IS_ERR(full_path))
Patches currently in stable-queue which might be from pc@xxxxxx are
queue-5.15/cifs-introduce-new-helper-for-cifs_reconnect.patch
queue-5.15/cifs-support-nested-dfs-links-over-reconnect.patch
queue-5.15/cifs-fix-missed-refcounting-of-ipc-tcon.patch
queue-5.15/cifs-fix-connections-leak-when-tlink-setup-failed.patch
queue-5.15/cifs-split-out-dfs-code-from-cifs_reconnect.patch
