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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, 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 5C026C4360F for ; Wed, 27 Mar 2019 20:10:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 346CE2147C for ; Wed, 27 Mar 2019 20:10:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729032AbfC0UKE (ORCPT ); Wed, 27 Mar 2019 16:10:04 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:46880 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728843AbfC0UKC (ORCPT ); Wed, 27 Mar 2019 16:10:02 -0400 Received: by mail-io1-f71.google.com with SMTP id k5so14045108ioh.13 for ; Wed, 27 Mar 2019 13:10:01 -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=M9LZ+bMimI4PbDOfuBNIBaRlNMQDprLBDf38mjJfhKc=; b=evWRrkRt/f6LQYZkXTuZqQWNnDJ9dC2d2qVXrkfjIzTR95Kg4nWv4bu8sPXiY8Ngne cQmk7XFbH+46Ny3mKe76WvCJZF4AnrgjiEHtsXMLRLZQZwqdfUC065TNCi4s7hPvs6jK z4ENnqdYQSPAMZHFoBR8eGUPiaQA25gLTNYCZt2G0SmUBfT74po+lmwVdQhz5CHLDsb3 EOOo1qmYxTQ88JVVSwNji2vFpTdO87mkMIvsxbIBRA3uIZG11YGWkTHk7jxLHzqOdxVa JD2GyxPobn1DNu3GYSqPfEV8v+zvbp85fQYgdk5ZGyNhu7IQp66PRjIOjFRVfJdCSBlY X7gw== X-Gm-Message-State: APjAAAUFlNIsz9sL44MQhTCm08Mqb0NOatMqIWYkZIjHhhbqMlOqJh45 Y+OXk2I1ROCLD26Y1Pw9B9OStcu6NxOdUiZb3m89zotFlIy/ X-Google-Smtp-Source: APXvYqyDAf4ploxQXeYfC+CFYQgbOcopu+jJ1sXdRok24pSP1DcDyVjvzKS+bGYT+67jK4ftl65L/WTLJk3QASrrZ0jfVnqyzKD5 MIME-Version: 1.0 X-Received: by 2002:a24:2704:: with SMTP id g4mr1307352ita.36.1553717401059; Wed, 27 Mar 2019 13:10:01 -0700 (PDT) Date: Wed, 27 Mar 2019 13:10:01 -0700 In-Reply-To: <00000000000051ee78057cc4d98f@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c58fcf058519059e@google.com> Subject: Re: general protection fault in put_pid From: syzbot To: akpm@linux-foundation.org, clm@fb.com, dan.carpenter@oracle.com, dave@stgolabs.net, dhowells@redhat.com, dsterba@suse.com, dvyukov@google.com, ebiederm@xmission.com, jbacik@fb.com, ktkhai@virtuozzo.com, ktsanaktsidis@zendesk.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, manfred@colorfullife.com, mhocko@suse.com, nborisov@suse.com, penguin-kernel@I-love.SAKURA.ne.jp, penguin-kernel@i-love.sakura.ne.jp, rppt@linux.vnet.ibm.com, sfr@canb.auug.org.au, shakeelb@google.com, syzkaller-bugs@googlegroups.com, vdavydov.dev@gmail.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit b9b8a41adeff5666b402996020b698504c927353 Author: Dan Carpenter Date: Mon Aug 20 08:25:33 2018 +0000 btrfs: use after free in btrfs_quota_enable bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14155a1f200000 start commit: f5d58277 Merge branch 'for-linus' of git://git.kernel.org/.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=16155a1f200000 console output: https://syzkaller.appspot.com/x/log.txt?x=12155a1f200000 kernel config: https://syzkaller.appspot.com/x/.config?x=c8970c89a0efbb23 dashboard link: https://syzkaller.appspot.com/bug?extid=1145ec2e23165570c3ac syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16803afb400000 Reported-by: syzbot+1145ec2e23165570c3ac@syzkaller.appspotmail.com Fixes: b9b8a41adeff ("btrfs: use after free in btrfs_quota_enable") For information about bisection process see: https://goo.gl/tpsmEJ#bisection