From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32FBFC282C4 for ; Mon, 4 Feb 2019 15:44:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F03742082E for ; Mon, 4 Feb 2019 15:44:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549295099; bh=Tqq63KHR1L5a/FblZUZ1ZutrZM3taAjUqirbU2Ff/Uo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=V5CotGguIbe3SP966D1fZyL2u7LMz/pUObB6ur5Z69yE7ERfjYWol51bd3iEWo+hN uSmCqlCNhhz2F3WcpmMLCATPxT6cLCszzKTja9KvX1+vYacCZ0Brd8r5FCEqid4/qC mpuMU9rWo+aQ+dSYFc9gcItz3Td52f7vjJQQ3xAg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729654AbfBDPo6 (ORCPT ); Mon, 4 Feb 2019 10:44:58 -0500 Received: from mail.kernel.org ([198.145.29.99]:58082 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729432AbfBDPo6 (ORCPT ); Mon, 4 Feb 2019 10:44:58 -0500 Received: from localhost (unknown [62.119.166.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AEC212082E; Mon, 4 Feb 2019 15:44:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1549295097; bh=Tqq63KHR1L5a/FblZUZ1ZutrZM3taAjUqirbU2Ff/Uo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JuACUFTzOypNZ/0EaFnUQrZsMmqrNLqo7ZsdihckPB/lMzIEqpFNaQcPyrRsOGij/ 8n8wzEZXUh6g5O5VkhKcvDsZagV+Dgza5W2g+jW6yUBfro7VbKeEg5ruOmVOULYF0T c0D4IJ5vBMaawsOSIaXhGjn/YwNVVqi/U9ij4f5A= Date: Mon, 4 Feb 2019 16:44:54 +0100 From: Greg KH To: Mike Marciniszyn Cc: stable@vger.kernel.org, linux-rdma@vger.kernel.org, stable-commits@vger.kernel.org Subject: Re: [PATCH] IB/{hfi1,qib}: Add limit test for RC/UC send via loopback Message-ID: <20190204154454.GB14330@kroah.com> References: <20190204153639.2555.41856.stgit@scvm10.sc.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190204153639.2555.41856.stgit@scvm10.sc.intel.com> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Mon, Feb 04, 2019 at 07:36:42AM -0800, Mike Marciniszyn wrote: > Upstream commit 09ce351dff8e7636af0beb72cd4a86c3904a0500. > > Fix potential memory corruption and panic in loopback for > IB_WR_SEND varaiants. > > The code blindly assumes the posted length will fit in the > fetched rwqe, which is not a valid assumption. > > Fix by adding a limit test, and triggering the appropriate > send completion and putting the QP in an error state. This > mimics the handling for non-loopback QPs. > > [ported to older kernels where the loopback was in each driver] > > Cc: #v4.9+ > Fixes: 7724105686e7 ("IB/hfi1: add driver files") > Reviewed-by: Michael J. Ruhl > Signed-off-by: Mike Marciniszyn > --- > drivers/infiniband/hw/hfi1/ruc.c | 7 ++++++- > drivers/infiniband/hw/qib/qib_ruc.c | 7 ++++++- > 2 files changed, 12 insertions(+), 2 deletions(-) What stable kernel(s) is this backport for? thanks, greg k-h