Received: by 2002:a25:23cc:0:0:0:0:0 with SMTP id j195csp532249ybj; Thu, 7 May 2020 01:25:43 -0700 (PDT) X-Google-Smtp-Source: APiQypIXyOBkuvUUuLt4Db2BxFNEkG4uZhZspnbXC5LvVnpLPi0067D8dMdzg6hJXZABrPXl/DpQ X-Received: by 2002:a17:906:1690:: with SMTP id s16mr10113086ejd.339.1588839943257; Thu, 07 May 2020 01:25:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1588839943; cv=none; d=google.com; s=arc-20160816; b=cSUS1DGZHjq42oUR6zmA2mZaPl+n90iam6aSzkbbJHOeqCSdxuklzTxEUF1uwI9Jwh g8gyoAl0IQLwfIwgJrGQikui81Y916je0qkqdz9ESD06A7h2cN339yKqirqijNZy788l eWMSE/pJD2xgyt9+eVeohl/svdiqh0o55BvpEAS50U+Y4ygejo9YMU5Q3FMXROwqwqrS AOK8k5HoDLSTcgbwSRswNR5gH1ZXIYVqAWl/eK31JrcKatwPxsY3RxZD4w3NmWLWPVPu d4qKoGUF16a1y9V8MzwyuTvsumjLRvhtFZO9NWEuCOxtXlUjp205BEvfcr0dEpFWxhj0 k3uQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=m2oFiBPjNk1INVG7PfHk2CXDY5TUbZdRjhbMiygjNsY=; b=qv96otnstgtPsVb1TUrSMsIpzMPJn0x4JGdbZqNxzqcpumKCoI9nDgK0RgktNSkoMd TFRKGdTPHOXn6M/uqltUuBsBd9lqBgWoPgZBrEfv5hkFnjQfb3/zuNMVIkq+AcyOpGjt t99URAQBz3ApRo0JU6bjP0hNBgU0jeOK4Zf5JMg5ijLb3LSMAGRmK1kkWOCRnNZmIttb xGnacZe32w9dIXWf8PBmlToN7Y9efGY2OWJiYiGHVT0PWqTZejSOO6gVAJiOMp47+Kfq Qt9SArPNeNhE+vPsR943D0piCYNDzqtNQPMVfPTn4i/i82ZTZ2pDS0pfFU0pz9CMwesc 74Jw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=EDeTWn3l; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id n8si990374edo.572.2020.05.07.01.25.19; Thu, 07 May 2020 01:25:43 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=EDeTWn3l; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726542AbgEGIXj (ORCPT + 99 others); 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