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=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS 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 BFC2CC38A2A for ; Thu, 7 May 2020 09:50:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A54A2207DD for ; Thu, 7 May 2020 09:50:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726268AbgEGJuT (ORCPT ); Thu, 7 May 2020 05:50:19 -0400 Received: from mx2.suse.de ([195.135.220.15]:58738 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725848AbgEGJuT (ORCPT ); Thu, 7 May 2020 05:50:19 -0400 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 27B7DAFF3; Thu, 7 May 2020 09:50:21 +0000 (UTC) Date: Thu, 07 May 2020 11:50:18 +0200 Message-ID: From: Takashi Iwai To: butt3rflyh4ck Cc: security@kernel.org, syzkaller , tiwai@suse.com, Greg Kroah-Hartman , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: Re: KASAN: use-after-free Write in snd_rawmidi_kernel_write1 In-Reply-To: References: 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=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 07 May 2020 09:54:34 +0200, butt3rflyh4ck wrote: > > I report a bug (in linux-5.7-rc1) found by syzkaller. > > kernel config:  > https://github.com/butterflyhack/syzkaller-fuzz/blob/master/v5.7.0-rc1.config > reproducer:  > https://github.com/butterflyhack/syzkaller-fuzz/blob/master/repro.cprog Is this report different from your another one? https://lore.kernel.org/r/CAFcO6XMGT42wFBxEa01Ee5Msuecm+WiXnn4rc-VWkC4vTzycPg@mail.gmail.com thanks, Takashi