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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3184E748E6 for ; Sat, 30 Sep 2023 20:35:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231603AbjI3Ufn (ORCPT ); Sat, 30 Sep 2023 16:35:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41752 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231124AbjI3Ufl (ORCPT ); Sat, 30 Sep 2023 16:35:41 -0400 Received: from mail-oo1-xc41.google.com (mail-oo1-xc41.google.com [IPv6:2607:f8b0:4864:20::c41]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E9D4DD for ; Sat, 30 Sep 2023 13:35:39 -0700 (PDT) Received: by mail-oo1-xc41.google.com with SMTP id 006d021491bc7-57bab8676f9so5842483eaf.3 for ; Sat, 30 Sep 2023 13:35:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1696106138; x=1696710938; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=q9xYfZBQImKsyGrauSkx40CmvbMShT//GSfSxiyP5zE=; b=Ye1YXWGhPBAEgxH8F7NwQJfHX5pchAHb9kgSKo+qBWuvEkdXpVJPqa7RpnmHnCef0w 6ApazzzAQJ29LS1KLjHDUU1Yoozz8lvzbwj+VdNf8TkWvjh0B6z/3NMZeSaaFCRDH9im ts+YC8WjjISa8Rg46ZbZJWa277QGHiZdrUX+4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696106138; x=1696710938; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=q9xYfZBQImKsyGrauSkx40CmvbMShT//GSfSxiyP5zE=; b=eAG/yJwSVyYqj0hKVLLSXxVVnoHaDkbFe+DDUz6yscQ8cZgV51iv8CAycNYMp0iugz nAbeAJ+9YyHBrzV58uuMFnBCs6CP0155YYlZZv4J4wKxRBeU0nmkRG8SfruTn+T0bulj z3qKiXeC/2sV9sTzJ2eEapp98JRG/4hiLZu8y4LZHRacFbRnw/VYecmhaT4yqO6bWKW5 4Zi2sCK32H5uPkjzigp1FKcE7aok7iorovYRaQsu0cdhj+CwbqvVVKJLfbG2ShotlrH1 cn8krYARORlRlnwK733nE+w4fhB6ahnpQOp8iu18Qf6f7a8ESbM6B2tYJZFfg7vKDJkK 9FIA== X-Gm-Message-State: AOJu0YwhKLgoSmsLlhXzt/NVaAXZLsEv/mBjBUUutALSC27IBMCv3dW6 ajFfUb/1fVaOmTzDEcH0HlH6cQ== X-Google-Smtp-Source: AGHT+IES6FCR6Oc6pFQSlN7yRWa0cm//27qrbGfY1PvU67WmpoTEAmenT310bfviix1NiTa1MWHqJQ== X-Received: by 2002:a05:6358:718b:b0:143:7a89:a8e8 with SMTP id t11-20020a056358718b00b001437a89a8e8mr8441521rwt.10.1696106138275; Sat, 30 Sep 2023 13:35:38 -0700 (PDT) Received: from www.outflux.net (198-0-35-241-static.hfc.comcastbusiness.net. [198.0.35.241]) by smtp.gmail.com with ESMTPSA id t14-20020a056a0021ce00b0068bc461b68fsm16653273pfj.204.2023.09.30.13.35.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 30 Sep 2023 13:35:37 -0700 (PDT) Date: Sat, 30 Sep 2023 13:35:32 -0700 From: Kees Cook To: syzbot Cc: chandan.babu@oracle.com, david@fromorbit.com, djwong@kernel.org, ebiggers@kernel.org, hch@lst.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, mukattreyee@gmail.com, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [xfs?] UBSAN: array-index-out-of-bounds in xfs_attr3_leaf_add_work Message-ID: <202309301334.FA4D7752@keescook> References: <0000000000001c8edb05fe518644@google.com> <0000000000003c16100606974653@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000003c16100606974653@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Sep 30, 2023 at 10:57:28AM -0700, syzbot wrote: > syzbot suspects this issue was fixed by commit: > > commit a49bbce58ea90b14d4cb1d00681023a8606955f2 > Author: Darrick J. Wong > Date: Mon Jul 10 16:12:20 2023 +0000 > > xfs: convert flex-array declarations in xfs attr leaf blocks > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12eef28a680000 > start commit: f8566aa4f176 Merge tag 'x86-urgent-2023-07-01' of git://gi.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=3f27fb02fc20d955 > dashboard link: https://syzkaller.appspot.com/bug?extid=510dcbdc6befa1e6b2f6 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1652938f280000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14c10c40a80000 > > If the result looks correct, please mark the issue as fixed by replying with: Yup, that tracks. :) #syz fix: xfs: convert flex-array declarations in xfs attr leaf blocks -Kees > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection -- Kees Cook