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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 F23FBC3524C for ; Mon, 3 Feb 2020 06:43:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CDDA92082F for ; Mon, 3 Feb 2020 06:43:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727567AbgBCGn6 (ORCPT ); Mon, 3 Feb 2020 01:43:58 -0500 Received: from mx2.suse.de ([195.135.220.15]:36234 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726045AbgBCGn5 (ORCPT ); Mon, 3 Feb 2020 01:43:57 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 9B041AD5D; Mon, 3 Feb 2020 06:43:55 +0000 (UTC) Date: Mon, 03 Feb 2020 07:43:54 +0100 Message-ID: From: Takashi Iwai To: Hillf Danton Cc: syzbot , alsa-devel-owner@alsa-project.org, alsa-devel@alsa-project.org, arnd@arndb.de, baolin.wang@linaro.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, perex@perex.cz, stable-commits@vger.kernel.org, stable@vger.kernel.org, syzkaller-bugs@googlegroups.com, tiwai@suse.com Subject: Re: KASAN: use-after-free Read in snd_timer_resolution In-Reply-To: <20200203055122.18020-1-hdanton@sina.com> References: <000000000000729d74059c30ddff@google.com> <20200203055122.18020-1-hdanton@sina.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 03 Feb 2020 06:51:22 +0100, Hillf Danton wrote: > > > Sun, 02 Feb 2020 04:56:10 -0800 (PST) > > syzbot has found a reproducer for the following crash on: > > > > HEAD commit: 2747d5fd Add linux-next specific files for 20200116 This looks like a fairly old head, and missing the fix that is already included in 5.5 release: 60adcfde92fa40fcb2dbf7cc52f9b096e0cd109a ALSA: seq: Fix racy access for queue timer in proc read thanks, Takashi