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[2620:137:e000::1:20]) by mx.google.com with ESMTP id u11-20020a056a00124b00b0056befaa95a1si596729pfi.50.2022.11.24.00.23.59; Thu, 24 Nov 2022 00:24:10 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20210112 header.b=hcvgfywr; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229719AbiKXIIk (ORCPT + 87 others); Thu, 24 Nov 2022 03:08:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55860 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229712AbiKXIIi (ORCPT ); Thu, 24 Nov 2022 03:08:38 -0500 Received: from mail-yb1-xb2c.google.com (mail-yb1-xb2c.google.com [IPv6:2607:f8b0:4864:20::b2c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2296397344 for ; Thu, 24 Nov 2022 00:08:37 -0800 (PST) Received: by mail-yb1-xb2c.google.com with SMTP id 189so336625ybe.8 for ; Thu, 24 Nov 2022 00:08:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=1H8eACwsPHCorcFfJu+1RNheIDT08lbVO89iT+IwrnE=; b=hcvgfywrs5CNQciRKRok+L2IOwPt9pTi98wn0IlvOxeiwBYuar9JGTQ2hv4dCeko7M ZBp13zhDouAH4H5ECU0rGau8v+fdckbM7MJ9GpMrCJImdG9wrE3G3Rn/B2lXzeZj4Aqa i9Ocixhl+jm3HmWdBvG29olLeMYvewUdacS45whUJ0/oeDIcjU7ZRgkx/XHIIc7oCjcr UwrhwSKungivUzxn29AlDs3wEtz5pe4aSHNPOqX/xAdFHlVHvOqkUU3+KgWzlPcw3cjD 3bprMUoOubz2SOrxrtB8biAA5z2xwfZ0bl4gqJR2HqGhPAGYHNBH6I5qy2mawLlHTHjh A0GA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=1H8eACwsPHCorcFfJu+1RNheIDT08lbVO89iT+IwrnE=; b=DYmZk9xrWuOwsZgNztUViul2lmtN5L7QqcS/F8ahLgEn/VTEgJp3tAq4zpD8BIWgbF XQ84mi/etrNXX47qzinHE6/dXJzINCZ8f9z1x68D43ba1s0AJouGaP40Ay/A3YntTW7T bNGlv8rl3pdEZoeD6eOfgWTDiLoSmgPRF6gx+3vqf+tXYPXhbu6hm7Ogyp2K8rZqNB3a 6AH5m95/tfrLGlqB8tcsAjw9r2THhCMV85zG4MLL1v/O9c27a4wTAll9Bxw6BDhVdjx9 DaUPGOTcGIlWApIboNzorIW5C0ZK1/EOZ9QBCx+bF0rEwAY7Xt1P5OQ2wKKyNySmpDuz s0ng== X-Gm-Message-State: ANoB5pnL0ruw7rHg9jV4lvvMED8/dO/XeJ1GiFCQ5CeHRvf/TmAWdhkf 5v0Nr864teNlcSJsCSoftHkq7HMIwOtuM11qJrZHfT/nY1s= X-Received: by 2002:a5b:b43:0:b0:6de:1554:867b with SMTP id b3-20020a5b0b43000000b006de1554867bmr11396138ybr.16.1669277316282; Thu, 24 Nov 2022 00:08:36 -0800 (PST) MIME-Version: 1.0 References: <00000000000063536805ee0769d8@google.com> <20221122043504.GR3600936@dread.disaster.area> In-Reply-To: <20221122043504.GR3600936@dread.disaster.area> From: Marco Elver Date: Thu, 24 Nov 2022 09:07:59 +0100 Message-ID: Subject: Re: [syzbot] kernel BUG in assfail To: Dave Chinner Cc: syzbot , djwong@kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-17.6 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, ENV_AND_HDR_SPF_MATCH,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, USER_IN_DEF_DKIM_WL,USER_IN_DEF_SPF_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org #syz invalid On Tue, 22 Nov 2022 at 05:35, Dave Chinner wrote: ... > Turn off CONFIG_XFS_DEBUG, and this failure will return > -EFSCORRUPTED as expected because syzbot fed it a corrupt log. THe > mount will simply fail as you'd expect given the malicious > corruption that syzbot has performed. > > If syzbot is going to maliciously corrupt XFS filesytsems and then > try to abuse them, then syzbot has two choices. Either: > > 1. do not enable CONFIG_XFS_DEBUG; or We've disabled CONFIG_XFS_DEBUG - reports like this should no longer be sent. Thanks, -- Marco