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[209.132.180.67]) by mx.google.com with ESMTP id g22si24769359pfh.219.2019.07.28.17.39.13; Sun, 28 Jul 2019 17:39:30 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726429AbfG2AiF (ORCPT + 99 others); Sun, 28 Jul 2019 20:38:05 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:45441 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726276AbfG2AiB (ORCPT ); Sun, 28 Jul 2019 20:38:01 -0400 Received: by mail-io1-f70.google.com with SMTP id e20so65394761ioe.12 for ; Sun, 28 Jul 2019 17:38:01 -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=P/bfC/9DYsjpqYrAz/GLNeevsKIsGM5ry8dJO/L9Ihk=; b=fwGbijWyk21hktHDVCfeslAZSHjhNnooeoq1S4kUCSY5eQ6V4ZuzHmbAJ1xXpApsD8 tYmwVWBoE5/fIGTihbC4CVG0FL5xHD1Fdhi/NPmdUgbGLi+OOivwNiCjWeDrSm4H8zip YoFNEg78WcG3kyRFsaUhAPNm4Sx3++ZT3B9F+ydYsG30D2Hl9fYGLElQoGettTpsjIJx 947a6i5rs8NSA9NQfj+SIv3AK6qpkLIWCPKrfOfmHQ8lbUI875b2vRvPscQITdQ8oTjy 3Syj3oYNQ9DrgYjdAE6GmhisqerMV6JR9NGA1a4XOh+9UuB2yoK4mvu97ofx4x1QkNTS y1pw== X-Gm-Message-State: APjAAAWJWwP/GziXj5nqPgPFbyf7QBsje00ur451ynuG3lKvG3DIOyHt o8AV3byAs6JELnC6owdDcwhPqqsVBkgsiTHmd0K5URGGTIUZ MIME-Version: 1.0 X-Received: by 2002:a05:6638:40c:: with SMTP id q12mr81494815jap.17.1564360680847; Sun, 28 Jul 2019 17:38:00 -0700 (PDT) Date: Sun, 28 Jul 2019 17:38:00 -0700 In-Reply-To: <000000000000c75fb7058ba0c0e4@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000aec4ec058ec71a3d@google.com> Subject: Re: memory leak in bio_copy_user_iov From: syzbot To: agk@redhat.com, axboe@kernel.dk, coreteam@netfilter.org, davem@davemloft.net, dm-devel@redhat.com, hdanton@sina.com, kaber@trash.net, kadlec@blackhole.kfki.hu, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, shli@kernel.org, snitzer@redhat.com, syzkaller-bugs@googlegroups.com 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 664820265d70a759dceca87b6eb200cd2b93cda8 Author: Mike Snitzer Date: Thu Feb 18 20:44:39 2016 +0000 dm: do not return target from dm_get_live_table_for_ioctl() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13f4eb64600000 start commit: 0011572c Merge branch 'for-5.2-fixes' of git://git.kernel... git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=100ceb64600000 console output: https://syzkaller.appspot.com/x/log.txt?x=17f4eb64600000 kernel config: https://syzkaller.appspot.com/x/.config?x=cb38d33cd06d8d48 dashboard link: https://syzkaller.appspot.com/bug?extid=03e5c8ebd22cc6c3a8cb syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13244221a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=117b2432a00000 Reported-by: syzbot+03e5c8ebd22cc6c3a8cb@syzkaller.appspotmail.com Fixes: 664820265d70 ("dm: do not return target from dm_get_live_table_for_ioctl()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection