From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:47696 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754595AbcKUQb6 (ORCPT ); Mon, 21 Nov 2016 11:31:58 -0500 Subject: Patch "IB/mlx5: Fix NULL pointer dereference on debug print" has been added to the 4.8-stable tree To: eli@mellanox.com, dledford@redhat.com, gregkh@linuxfoundation.org, leon@kernel.org, maorg@mellanox.com, yishaih@mellanox.com Cc: , From: Date: Mon, 21 Nov 2016 17:29:33 +0100 Message-ID: <14797457731532@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled IB/mlx5: Fix NULL pointer dereference on debug print to the 4.8-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: ib-mlx5-fix-null-pointer-dereference-on-debug-print.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From a1ab8402d15d2305d2315d96ec3294bfdf16587e Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Thu, 27 Oct 2016 16:36:46 +0300 Subject: IB/mlx5: Fix NULL pointer dereference on debug print From: Eli Cohen commit a1ab8402d15d2305d2315d96ec3294bfdf16587e upstream. For XRC QP CQs may not exist. Check before attempting dereference. Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters') Signed-off-by: Eli Cohen Signed-off-by: Maor Gottlieb Reviewed-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/mlx5/qp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -2037,8 +2037,8 @@ struct ib_qp *mlx5_ib_create_qp(struct i mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n", qp->ibqp.qp_num, qp->trans_qp.base.mqp.qpn, - to_mcq(init_attr->recv_cq)->mcq.cqn, - to_mcq(init_attr->send_cq)->mcq.cqn); + init_attr->recv_cq ? to_mcq(init_attr->recv_cq)->mcq.cqn : -1, + init_attr->send_cq ? to_mcq(init_attr->send_cq)->mcq.cqn : -1); qp->trans_qp.xrcdn = xrcdn; Patches currently in stable-queue which might be from eli@mellanox.com are queue-4.8/ib-mlx5-fix-fatal-error-dispatching.patch queue-4.8/ib-mlx5-fix-null-pointer-dereference-on-debug-print.patch