From d275880abce9ac66cb842af828fbc2b1ba8082a0 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Mon, 17 May 2021 08:50:11 -0400 Subject: SUNRPC: Fix Oops in xs_tcp_send_request() when transport is disconnected If a disconnection occurs while we're trying to reply to a server callback, then we may end up calling xs_tcp_send_request() with a NULL value for transport->inet, which trips up the call to tcp_sock_set_cork(). Fixes: d737e5d41870 ("SUNRPC: Set TCP_CORK until the transmit queue is empty") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust --- net/sunrpc/xprtsock.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/sunrpc') diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 47aa47a2b07c..316d04945587 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -1010,6 +1010,8 @@ static int xs_tcp_send_request(struct rpc_rqst *req) kernel_sock_shutdown(transport->sock, SHUT_RDWR); return -ENOTCONN; } + if (!transport->inet) + return -ENOTCONN; xs_pktdump("packet data:", req->rq_svec->iov_base, -- cgit v1.2.3