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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 07637C433F5 for ; Tue, 7 Sep 2021 06:51:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DAAC160E8B for ; Tue, 7 Sep 2021 06:51:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234934AbhIGGwO (ORCPT ); Tue, 7 Sep 2021 02:52:14 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:34659 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234831AbhIGGwN (ORCPT ); Tue, 7 Sep 2021 02:52:13 -0400 Received: by mail-il1-f199.google.com with SMTP id d17-20020a9287510000b0290223c9088c96so5469261ilm.1 for ; Mon, 06 Sep 2021 23:51:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=bQd9Yn1U78LI0fg5YUZ8e9dnmnC6+HnT8KD9nGnx8JU=; b=TYSrHQyRtafOee2TI9xo49qtxm3T9bhFxGqpekah0+PH8dBaPkO+UqN9WAVcUgl5Ki Dqqqy8HbXIvBNqLVZzG6HwZHpz1DoAvMrLtfRUpFf/9vraVl6k0jR1yBa2AkX/IGFPK0 HH8ld+rV2EVAZTr1luGOt0HwoNDvS2ih+kn3+LotE9B4FEl4zsJ6vGHeDhfa6A31xmYV lmotUwT1CyBA3dGdz41CcC6kdXEkkmW8U3Xp+Ni7DNDZa4/AH0wDC9qPMpRH0qykI5kO KziKzEz3+sRiecai1vdfsu72bkNzOYUagtI+yxszOWHaWCno/OxBK8A3u9s30FfBx3/G KmOA== X-Gm-Message-State: AOAM530Exe1eXTRzmB2XHcWNYK1PNUrlPEd7N2hAIE4MB+vzia9Vh/r1 ymSoKMnblA8HYjEQbok45jb1AOL1c1U/C99MB/CmGw4Tu/lk X-Google-Smtp-Source: ABdhPJyeUmZ77BzmFV6pTkT9Wvawnx2OaFZU5c3skKh+qRRWvRHB3C05eZo7fTlP2AYnx5kDHHj5zeGxsKLKjX/w3mvetoc6Vl5/ MIME-Version: 1.0 X-Received: by 2002:a6b:fb0b:: with SMTP id h11mr12845176iog.59.1630997467748; Mon, 06 Sep 2021 23:51:07 -0700 (PDT) Date: Mon, 06 Sep 2021 23:51:07 -0700 In-Reply-To: <000000000000bb5f8605c697fd87@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b1e03005cb6230b5@google.com> Subject: Re: [syzbot] KASAN: use-after-free Write in get_ucounts From: syzbot To: ebiederm@xmission.com, legion@kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit 345daff2e994ee844d6a609c37f085695fbb4c4d Author: Alexey Gladkov Date: Tue Jul 27 15:24:18 2021 +0000 ucounts: Fix race condition between alloc_ucounts and put_ucounts bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1378d0ed300000 start commit: d5ad8ec3cfb5 Merge tag 'media/v5.14-2' of git://git.kernel.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=702bfdfbf389c324 dashboard link: https://syzkaller.appspot.com/bug?extid=8c3af233123df0578a5c syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16fedec6300000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: ucounts: Fix race condition between alloc_ucounts and put_ucounts For information about bisection process see: https://goo.gl/tpsmEJ#bisection