Re: [syzbot] KASAN: use-after-free Read in tipc_recvmsg

a fix already posted in tipc-discussion:

diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 9b0b311c7ec1..b0dd183a4dbc 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c

@@ -1973,10 +1973,12 @@ static int tipc_recvmsg(struct socket *sock,

struct msghdr *m,
                tipc_node_distr_xmit(sock_net(sk), &xmitq);
        }

-       if (!skb_cb->bytes_read)
-               tsk_advance_rx_queue(sk);
+       if (skb_cb->bytes_read)
+               goto exit;
+
+       tsk_advance_rx_queue(sk);

-       if (likely(!connected) || skb_cb->bytes_read)
+       if (likely(!connected))
                goto exit;