From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Amrani, Ram" , Sagi Grimberg , Doug Ledford Subject: [PATCH 4.9 11/47] iser-target: Fix possible use-after-free in connection establishment error Date: Mon, 22 Jan 2018 09:45:22 +0100 Message-Id: <20180122083926.487823166@linuxfoundation.org> In-Reply-To: <20180122083925.568134913@linuxfoundation.org> References: <20180122083925.568134913@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sagi Grimberg commit cd52cb26e7ead5093635e98e07e221e4df482d34 upstream. In case we fail to establish the connection we must drain our pre-posted login recieve work request before continuing safely with connection teardown. Fixes: a060b5629ab0 ("IB/core: generic RDMA READ/WRITE API") Reported-by: Amrani, Ram Signed-off-by: Sagi Grimberg Signed-off-by: Doug Ledford Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/ulp/isert/ib_isert.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -747,6 +747,7 @@ isert_connect_error(struct rdma_cm_id *c { struct isert_conn *isert_conn = cma_id->qp->qp_context; + ib_drain_qp(isert_conn->qp); list_del_init(&isert_conn->node); isert_conn->cm_id = NULL; isert_put_conn(isert_conn);