From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:41906 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932067AbdA3Nwo (ORCPT ); Mon, 30 Jan 2017 08:52:44 -0500 Subject: Patch "IB/rxe: Prevent from completer to operate on non valid QP" has been added to the 4.9-stable tree To: yonatanc@mellanox.com, dledford@redhat.com, gregkh@linuxfoundation.org, leon@kernel.org, monis@mellanox.com Cc: , From: Date: Mon, 30 Jan 2017 14:52:49 +0100 Message-ID: <148578436985221@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/rxe: Prevent from completer to operate on non valid QP to the 4.9-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-rxe-prevent-from-completer-to-operate-on-non-valid-qp.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 2d4b21e0a2913612274a69a3ba1bfee4cffc6e77 Mon Sep 17 00:00:00 2001 From: Yonatan Cohen Date: Thu, 19 Jan 2017 15:25:59 +0200 Subject: IB/rxe: Prevent from completer to operate on non valid QP From: Yonatan Cohen commit 2d4b21e0a2913612274a69a3ba1bfee4cffc6e77 upstream. On UD QP completer tasklet is scheduled for each packet sent. If it is followed by a destroy_qp(), the kernel panic will happen as the completer tries to operate on a destroyed QP. Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: Yonatan Cohen Reviewed-by: Moni Shoua Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/sw/rxe/rxe_qp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/drivers/infiniband/sw/rxe/rxe_qp.c +++ b/drivers/infiniband/sw/rxe/rxe_qp.c @@ -813,8 +813,7 @@ void rxe_qp_destroy(struct rxe_qp *qp) del_timer_sync(&qp->rnr_nak_timer); rxe_cleanup_task(&qp->req.task); - if (qp_type(qp) == IB_QPT_RC) - rxe_cleanup_task(&qp->comp.task); + rxe_cleanup_task(&qp->comp.task); /* flush out any receive wr's or pending requests */ __rxe_do_task(&qp->req.task); Patches currently in stable-queue which might be from yonatanc@mellanox.com are queue-4.9/ib-rxe-prevent-from-completer-to-operate-on-non-valid-qp.patch