Patch "rxrpc: The mutex lock returned by rxrpc_accept_call() needs releasing" has been added to the 4.14-stable tree

Patch "rxrpc: The mutex lock returned by rxrpc_accept_call() needs releasing" has been added to the 4.14-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    rxrpc: The mutex lock returned by rxrpc_accept_call() needs releasing

to the 4.14-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:
     rxrpc-the-mutex-lock-returned-by-rxrpc_accept_call-needs-releasing.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Thu Feb  1 13:45:42 CET 2018
From: David Howells <dhowells@redhat.com>
Date: Fri, 24 Nov 2017 10:18:40 +0000
Subject: rxrpc: The mutex lock returned by rxrpc_accept_call() needs releasing

From: David Howells <dhowells@redhat.com>


[ Upstream commit 03a6c82218b9a87014b2c6c4e178294fdc8ebd8a ]

The caller of rxrpc_accept_call() must release the lock on call->user_mutex
returned by that function.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/rxrpc/sendmsg.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -563,8 +563,8 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *
 		/* The socket is now unlocked. */
 		if (IS_ERR(call))
 			return PTR_ERR(call);
-		rxrpc_put_call(call, rxrpc_call_put);
-		return 0;
+		ret = 0;
+		goto out_put_unlock;
 	}
 
 	call = rxrpc_find_call_by_user_ID(rx, p.user_call_ID);
@@ -633,6 +633,7 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *
 		ret = rxrpc_send_data(rx, call, msg, len, NULL);
 	}
 
+out_put_unlock:
 	mutex_unlock(&call->user_mutex);
 error_put:
 	rxrpc_put_call(call, rxrpc_call_put);


Patches currently in stable-queue which might be from dhowells@redhat.com are

queue-4.14/rxrpc-the-mutex-lock-returned-by-rxrpc_accept_call-needs-releasing.patch
queue-4.14/rxrpc-provide-a-different-lockdep-key-for-call-user_mutex-for-kernel-calls.patch
queue-4.14/rxrpc-fix-service-endpoint-expiry.patch