This is a note to let you know that I've just added the patch titled cifs: Fix oops due to uncleared server->smbd_conn in reconnect to the 4.19-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-oops-due-to-uncleared-server-smbd_conn-in-reconnect.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From b7ab9161cf5ddc42a288edf9d1a61f3bdffe17c7 Mon Sep 17 00:00:00 2001 From: David Howells <dhowells@xxxxxxxxxx> Date: Wed, 25 Jan 2023 14:02:13 +0000 Subject: cifs: Fix oops due to uncleared server->smbd_conn in reconnect From: David Howells <dhowells@xxxxxxxxxx> commit b7ab9161cf5ddc42a288edf9d1a61f3bdffe17c7 upstream. In smbd_destroy(), clear the server->smbd_conn pointer after freeing the smbd_connection struct that it points to so that reconnection doesn't get confused. Fixes: 8ef130f9ec27 ("CIFS: SMBD: Implement function to destroy a SMB Direct connection") Cc: stable@xxxxxxxxxxxxxxx Reviewed-by: Paulo Alcantara (SUSE) <pc@xxxxxx> Acked-by: Tom Talpey <tom@xxxxxxxxxx> Signed-off-by: David Howells <dhowells@xxxxxxxxxx> Cc: Long Li <longli@xxxxxxxxxxxxx> Cc: Pavel Shilovsky <piastryyy@xxxxxxxxx> Cc: Ronnie Sahlberg <lsahlber@xxxxxxxxxx> Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/cifs/smbdirect.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/cifs/smbdirect.c +++ b/fs/cifs/smbdirect.c @@ -1493,6 +1493,7 @@ void smbd_destroy(struct smbd_connection destroy_workqueue(info->workqueue); log_rdma_event(INFO, "rdma session destroyed\n"); kfree(info); + server->smbd_conn = NULL; } /* Patches currently in stable-queue which might be from dhowells@xxxxxxxxxx are queue-4.19/cifs-fix-oops-due-to-uncleared-server-smbd_conn-in-reconnect.patch