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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 24B5FC38A24 for ; Thu, 7 May 2020 08:23:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F38272078C for ; Thu, 7 May 2020 08:23:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588839820; bh=lO99hYKc327tJIds5lglufIkKhv7kNMeB7LuejbJZ3o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=jsgbb9ENd0gdH0uMAOCgLhMSo4b5z9fHgGOPCGCRl5i4148D218n7tdS8Z7xrqotv nFnxj1rznopCqCZAXmvGnfwOCHoFX70ONZphfA3fkVvB697J4uQBlqq+G2hV5LhbtO hcniK3QPSZYiHisiQHD7i2Zon6zfDGn+vTMcH20U= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726575AbgEGIXj (ORCPT ); Thu, 7 May 2020 04:23:39 -0400 Received: from mail.kernel.org ([198.145.29.99]:39254 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725862AbgEGIXi (ORCPT ); Thu, 7 May 2020 04:23:38 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 009E92073A; Thu, 7 May 2020 08:23:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588839818; bh=lO99hYKc327tJIds5lglufIkKhv7kNMeB7LuejbJZ3o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=EDeTWn3l2J1cfzbkF+ah1A84Sx22VmW7ca5mL79RHkM+xbNdaur8OeBhRdwcVVnRx rTt2f4Ng+/Y5wzdve7MG6TZnr7inIu9KD/7M9gvuEKF8onAVODdLLyqOZE62mgRJ3r YQHyqd7qYiV4yp2rtUlwRm7x+sMMMjFSZ4s1tFHI= Date: Thu, 7 May 2020 10:23:36 +0200 From: Greg Kroah-Hartman To: butt3rflyh4ck Cc: security@kernel.org, syzkaller , tiwai@suse.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: Re: KASAN: use-after-free Write in snd_rawmidi_kernel_write1 Message-ID: <20200507082336.GG1024567@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 07, 2020 at 03:54:34PM +0800, 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 > > I test the reproducer in linux-5.7-rc4 and crash too. Same as the other email, patches are best, thansk! greg k-h