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 D308FC433FE for ; Wed, 8 Dec 2021 11:42:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229811AbhLHLpk (ORCPT ); Wed, 8 Dec 2021 06:45:40 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:55135 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230194AbhLHLpi (ORCPT ); Wed, 8 Dec 2021 06:45:38 -0500 Received: by mail-io1-f69.google.com with SMTP id s8-20020a056602168800b005e96bba1363so2682517iow.21 for ; Wed, 08 Dec 2021 03:42:07 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=Cq6WGSsbkGm+8nb0ThhxOfOvaLP7AJDIkLOefXvz+uY=; b=IgwOYVFmUwCbHV5tn+DBgYqvoSNHj9Dbz/hp18cK0JXVkOEX7v1pCxiz7K9FxFgzgo cWD0bMAUWj2SIw2WpHSnWxWylhwZWV5FOHoPQZa5FkhtZD3mhi4czXAonXX3Hxr4v/xp SzcS+GAPoiMXJq2/7+pegGZEyuypuZ5uguHaejnil5OTCkV6EVCJQvGmxrcZahEhX1++ zhXfDO7GJQEms6K/52LAmsATRaUm1U26kiOO2+XK1TmAPpPDBkuwJjjCaNmlhfBWKlx4 jfuutzyboeEwk0G3jhPKBStg8LHZq/29LRYVMnvJX6ASjCo9TLSww01BNxM/SLM9nFlS lPYQ== X-Gm-Message-State: AOAM530Gwwecni9uCezq9NSPJ5h0v2ixsHXw3I+cCNe9X91q26aMiG0A AUyDSr36438gAYbs6RE33z+njGDhejBIFGnh1Yry92LVP+15 X-Google-Smtp-Source: ABdhPJwVt0d41ihAPgHJSWd2jTx09ZIGqhhiiwLHhb7EM/SNMaXiiIcGIJu7NzZd8ctmftWz5j+uDKa8fHXt14xKFWf6ThkIW5+i MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1ca6:: with SMTP id x6mr6098073ill.214.1638963726877; Wed, 08 Dec 2021 03:42:06 -0800 (PST) Date: Wed, 08 Dec 2021 03:42:06 -0800 In-Reply-To: <0000000000007f2f5405d1bfe618@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bd8a5505d2a0faee@google.com> Subject: Re: [syzbot] possible deadlock in blkdev_put (2) From: syzbot To: axboe@kernel.dk, coreteam@netfilter.org, davem@davemloft.net, dsahern@kernel.org, fw@strlen.de, kadlec@netfilter.org, kuba@kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, penguin-kernel@I-love.SAKURA.ne.jp, syzkaller-bugs@googlegroups.com, yoshfuji@linux-ipv6.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit f9006acc8dfe59e25aa75729728ac57a8d84fc32 Author: Florian Westphal Date: Wed Apr 21 07:51:08 2021 +0000 netfilter: arp_tables: pass table pointer via nf_hook_ops bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12500ae5b00000 start commit: 04fe99a8d936 Add linux-next specific files for 20211207 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=11500ae5b00000 console output: https://syzkaller.appspot.com/x/log.txt?x=16500ae5b00000 kernel config: https://syzkaller.appspot.com/x/.config?x=4589399873466942 dashboard link: https://syzkaller.appspot.com/bug?extid=643e4ce4b6ad1347d372 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11bb96ceb00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15ad1badb00000 Reported-by: syzbot+643e4ce4b6ad1347d372@syzkaller.appspotmail.com Fixes: f9006acc8dfe ("netfilter: arp_tables: pass table pointer via nf_hook_ops") For information about bisection process see: https://goo.gl/tpsmEJ#bisection