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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 1CB83C7618B for ; Wed, 24 Jul 2019 15:56:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E36EA229ED for ; Wed, 24 Jul 2019 15:56:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563983812; bh=12LnO1zLg3IFpmcf+NtP7mIwEGWEv48GYpjHYKoDGFg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=EHXArPYEXalMQOMDdxmxvLY8uqDwvoyJuWOLndOpslENWUGKvGSaSQ1TxLKGjYoKR fcpV3Dpb+yOl/pwM2qXIKcwYeieP1CBb0VjsNjVQz8C/CE5aVlhTYZvjgawx/bONvv SrqKCst+51hlvUwV6wdBJMGjJSuLyid2fdt+pK5A= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727256AbfGXP4v (ORCPT ); Wed, 24 Jul 2019 11:56:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:58328 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726856AbfGXP4u (ORCPT ); Wed, 24 Jul 2019 11:56:50 -0400 Received: from sol.localdomain (c-24-5-143-220.hsd1.ca.comcast.net [24.5.143.220]) (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 4FA5A2083B; Wed, 24 Jul 2019 15:56:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563983809; bh=12LnO1zLg3IFpmcf+NtP7mIwEGWEv48GYpjHYKoDGFg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=0/Dmnc1SZWcqxH3mQyg0EYG/JbNv5Rz9eP65F0tlfUhq5mgV/MNgAfDL8whbnT9z6 Rwkm6Aed6Q9E9oFdoEGEPusYpEQNIrj5ZHcl3/lG1u7gDnAJGHIcU7NQwPkxSB2feP DFwIpgPiBVqJwtnCIukOEGanwN4f7pZB4LUAjDY8= Date: Wed, 24 Jul 2019 08:56:47 -0700 From: Eric Biggers To: Takashi Iwai Cc: alsa-devel@alsa-project.org, Jaroslav Kysela , Takashi Iwai , syzkaller-bugs@googlegroups.com, linux-kernel@vger.kernel.org Subject: Re: Reminder: 1 open syzbot bug in sound subsystem Message-ID: <20190724155647.GA673@sol.localdomain> Mail-Followup-To: Takashi Iwai , alsa-devel@alsa-project.org, Jaroslav Kysela , Takashi Iwai , syzkaller-bugs@googlegroups.com, linux-kernel@vger.kernel.org References: <20190724024723.GI643@sol.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 24, 2019 at 09:08:26AM +0200, Takashi Iwai wrote: > On Wed, 24 Jul 2019 04:47:23 +0200, > Eric Biggers wrote: > > > > [This email was generated by a script. Let me know if you have any suggestions > > to make it better, or if you want it re-generated with the latest status.] > > > > Of the currently open syzbot reports against the upstream kernel, I've manually > > marked 1 of them as possibly being a bug in the sound subsystem. > > > > If you believe this bug is no longer valid, please close the syzbot report by > > sending a '#syz fix', '#syz dup', or '#syz invalid' command in reply to the > > original thread, as explained at https://goo.gl/tpsmEJ#status > > > > If you believe I misattributed this bug to the sound subsystem, please let me > > know, and if possible forward the report to the correct people or mailing list. > > > > Here is the bug: > > > > -------------------------------------------------------------------------------- > > Title: KASAN: use-after-free Read in wake_up_if_idle > > Last occurred: 131 days ago > > Reported: 267 days ago > > Branches: Mainline and others > > Dashboard link: https://syzkaller.appspot.com/bug?id=b1e300cd7b124fc83dd4199d4d1df26310111b0f > > Original thread: https://lkml.kernel.org/lkml/00000000000066ab7105795f245e@google.com/T/#u > > This one doesn't look like a bug that is directly related with the > sound stuff. Although it was triggered from a sound ioctl, UAF is > seen rather in a notifier chain of other component. > > > thanks, > > Takashi > Okay, I'm not sure what to do with this bug though. I'll mark it as unknown subsystem for now. By the way, thanks for addressing all the syzbot reports in the sound subsystem! - Eric