Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:56439 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752323AbcIRHy1 (ORCPT ); Sun, 18 Sep 2016 03:54:27 -0400 From: Kalle Valo To: Greg KH Cc: Christian Lamparter , Christian Lamparter , linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, b43-dev@lists.infradead.org, Nicolai Stange , Ben Greear , Larry Finger Subject: Re: [PATCH 2/4] carl9170: fix debugfs crashes References: <48411543620969bebb37a1a9ea7b8f451cdfdd31.1474140477.git.chunkeey@gmail.com> <20160917214539.GA28379@kroah.com> Date: Sun, 18 Sep 2016 10:54:18 +0300 In-Reply-To: <20160917214539.GA28379@kroah.com> (Greg KH's message of "Sat, 17 Sep 2016 23:45:39 +0200") Message-ID: <87d1k17idx.fsf@kamboji.qca.qualcomm.com> (sfid-20160918_095435_253686_CC2ECFD8) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: Greg KH writes: > On Sat, Sep 17, 2016 at 09:43:02PM +0200, Christian Lamparter wrote: >> Ben Greear reported: >> > I see lots of instability as soon as I load up the carl9710 NIC. >> > My application is going to be poking at it's debugfs files... >> > >> > BUG: KASAN: slab-out-of-bounds in carl9170_debugfs_read+0xd5/0x2a0 >> > [carl9170] at addr ffff8801bc1208b0 >> > Read of size 8 by task btserver/5888 >> > ======================================================================= >> > BUG kmalloc-256 (Tainted: G W ): kasan: bad access detected >> > ----------------------------------------------------------------------- >> > >> > INFO: Allocated in seq_open+0x50/0x100 age=2690 cpu=2 pid=772 >> >... >> >> This breakage was caused by the introduction of intermediate >> fops in debugfs by commit 9fd4dcece43a >> ("debugfs: prevent access to possibly dead file_operations at file open") > > Because of this, these should all be backported to 4.7-stable, and > 4.8-stable, right? Via which tree should these go, Greg's or mine? -- Kalle Valo