Commit 4b28876e78fd for kernel

commit 4b28876e78fd60979afa91fd2ec6ad9cc8b7a6d0
Author: David Howells <dhowells@redhat.com>
Date:   Wed Jun 24 17:38:09 2026 +0100

    rxrpc: Fix leak of connection from OOB challenge

    Fix leak of connection object from OOB challenge queue when response is
    provided by userspace.

    Fixes: 5800b1cf3fd8 ("rxrpc: Allow CHALLENGEs to the passed to the app for a RESPONSE")
    Link: https://sashiko.dev/#/patchset/20260609140911.838677-1-dhowells%40redhat.com
    Signed-off-by: David Howells <dhowells@redhat.com>
    cc: Marc Dionne <marc.dionne@auristor.com>
    cc: Simon Horman <horms@kernel.org>
    cc: linux-afs@lists.infradead.org
    cc: stable@kernel.org
    Link: https://patch.msgid.link/20260624163819.3017002-3-dhowells@redhat.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/rxrpc/oob.c b/net/rxrpc/oob.c
index 05ca9c1faa57..3318c8bd82ad 100644
--- a/net/rxrpc/oob.c
+++ b/net/rxrpc/oob.c
@@ -210,6 +210,11 @@ static int rxrpc_respond_to_oob(struct rxrpc_sock *rx,
 		break;
 	}

+	switch (skb->mark) {
+	case RXRPC_OOB_CHALLENGE:
+		rxrpc_put_connection(sp->chall.conn, rxrpc_conn_put_oob);
+		break;
+	}
 	rxrpc_free_skb(skb, rxrpc_skb_put_oob);
 	return ret;
 }