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-r.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.
commit 77d73d651718ff284353c818277eecbc5fa4eb2a
Author: David Howells <dhowells@xxxxxxxxxx>
Date: Wed Jan 25 14:02:13 2023 +0000
cifs: Fix oops due to uncleared server->smbd_conn in reconnect
[ Upstream commit b7ab9161cf5ddc42a288edf9d1a61f3bdffe17c7 ]
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: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index c839ff9d4965..591cd5c70432 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -1576,6 +1576,7 @@ void smbd_destroy(struct TCP_Server_Info *server)
destroy_workqueue(info->workqueue);
log_rdma_event(INFO, "rdma session destroyed\n");
kfree(info);
+ server->smbd_conn = NULL;
}
/*
