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=-18.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_IN_DEF_DKIM_WL 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 E0FD1C433DB for ; Thu, 11 Mar 2021 15:05:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 91C9864F9C for ; Thu, 11 Mar 2021 15:05:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233985AbhCKPEe (ORCPT ); Thu, 11 Mar 2021 10:04:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38744 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233998AbhCKPEd (ORCPT ); Thu, 11 Mar 2021 10:04:33 -0500 Received: from mail-qv1-xf31.google.com (mail-qv1-xf31.google.com [IPv6:2607:f8b0:4864:20::f31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5613C061574 for ; Thu, 11 Mar 2021 07:04:32 -0800 (PST) Received: by mail-qv1-xf31.google.com with SMTP id t16so2671319qvr.12 for ; Thu, 11 Mar 2021 07:04:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=WakET1rjxsh//Y4Rmd8Mn44mJORH/q+MwdmfAIdQY+k=; b=uGhMxmvLjWSovhgLvlatANcpWPE3z2dbKkhlViFu1VJ7u0KZmtnoF3Fym/FUqe0gwb m7tTTzeVR45EvJymGG4r2eUTJb3nf7pHe3b/1KSGtf/d/Zrm2/kuzbFBA/12YgMH8fSM 32qkgDkXzUmDpOlnVluldNcGJOVHHaRSfAAKArwRYZQa3wmheKZVyJGBO3d10kUtsZ1/ usqaEsQU1APxfbRJl/cAe39Olo+ClwhOL1ifgNzeAMCXA6LIWb2v9PGPYlnER7CFRWKk tmwfk2AeLDZZUv37poGYNIP4KkuWXsXxuYS53VDdl07JLHM9MLiecevAFaGwwPAPUKAW jAoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=WakET1rjxsh//Y4Rmd8Mn44mJORH/q+MwdmfAIdQY+k=; b=CvHP1cHR7UFpR2xR18LuuPNgZuFDim5RauPpbq99/4KdFOxlrEWteVgmBNyexcNJzp bx6DkSKjmThAJmrblSufgJkYxx22oU4qvYmnG6vY6v8FJJfljB1AvMQ99CcpYr13dw96 DLtBUlP4kmbCeHCtW3g38lC9oKrNkIpnhN30+r1bEr+ll8JhS0ea5Oxs7uoDFWinBqxN nf33OMAcId4M8KGZE88HgY1tf+J7YwvBKzaBAdf2V/EjLV8Xitwed1Y7V140YhcOO1eh grUPysQa3b1/IYzKIeL2ea77qR9GK058WVg2+11UfwlZSqPiU+2wNg84WfBdb8iiHMnp Zp1A== X-Gm-Message-State: AOAM531sIVL4ZUYhFwRjgAXsd/x1starWtyS0LBumxciOZOz55MFeo0Y QFQ1gN9oBdTNcDKbTna8R8pRZdXiQYWitwTYZgI6uw== X-Google-Smtp-Source: ABdhPJy6VEkgnbgU77XCqgJEiMGNGn0VanbYIb3RigS2EIMQ49bn18bPTv2jQJjdf2SYuQOvNileJ6H+AOA/9q0WrNc= X-Received: by 2002:ad4:50d0:: with SMTP id e16mr7976110qvq.37.1615475071764; Thu, 11 Mar 2021 07:04:31 -0800 (PST) MIME-Version: 1.0 References: <0000000000002954fa05b02468d7@google.com> <000000000000e287c905bd4101dc@google.com> In-Reply-To: <000000000000e287c905bd4101dc@google.com> From: Dmitry Vyukov Date: Thu, 11 Mar 2021 16:04:19 +0100 Message-ID: Subject: Re: [syzbot] KASAN: slab-out-of-bounds Read in squashfs_get_id To: syzbot Cc: Andrew Morton , Fox Chen , Greg Kroah-Hartman , LKML , phillip@squashfs.org.uk, syzkaller-bugs , Linus Torvalds Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 11, 2021 at 12:23 PM syzbot wrote: > > syzbot suspects this issue was fixed by commit: > > commit e812cbbbbbb15adbbbee176baa1e8bda53059bf0 > Author: Phillip Lougher > Date: Tue Feb 9 21:41:50 2021 +0000 > > squashfs: avoid out of bounds writes in decompressors > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11bfa48ad00000 > start commit: cd796ed3 Merge tag 'trace-v5.10-rc7' of git://git.kernel.o.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=59df2a4dced5f928 > dashboard link: https://syzkaller.appspot.com/bug?extid=8e28bba73ed1772a6802 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1138f80f500000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=125e080f500000 > > If the result looks correct, please mark the issue as fixed by replying with: > > #syz fix: squashfs: avoid out of bounds writes in decompressors > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection Looks reasonable: #syz fix: squashfs: avoid out of bounds writes in decompressors