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[209.132.180.67]) by mx.google.com with ESMTP id b3si13325681edn.202.2019.11.17.18.18.09; Sun, 17 Nov 2019 18:18:35 -0800 (PST) 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 S1726435AbfKRCOC (ORCPT + 99 others); Sun, 17 Nov 2019 21:14:02 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:46204 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726316AbfKRCOC (ORCPT ); Sun, 17 Nov 2019 21:14:02 -0500 Received: by mail-il1-f198.google.com with SMTP id i74so15065088ild.13 for ; Sun, 17 Nov 2019 18:14:01 -0800 (PST) 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=0hJK8rPWOFUddMB0lJimGQDZPQJFXDrAgb0buhY0TvU=; b=DiDh5/YbTnZ0yaPsiMRC1v6sPcBkSYzjW6THiOGzso6VPeoypYd028EQehMXbV0QEO EXQTCgndkkNqDABgDHTQW7S0H1ALCWze1GIPKRjzjbGtqVCkWEN2ruwVoeufs1/LHDzY 8AKjl8WTp0zw0j/K9ijnj3dA+ITj3oztprYE9D3PbWjM1oDyUMIY4r43H7OFOkDPem/M 1el2hz/ankMgz7eYNK52ye2qYsk6Pw6SFHODmcpAniQoo6bOqQ/mUBMj8Ja/HlOiUAZi hnPnwnpPtiIv+ZpZSTn3KavyNTjeS1DFktJwE5NqDVbstz3XU5KyRTvjVq0C3zsf2kaR NkEg== X-Gm-Message-State: APjAAAVa2XUwcM7i9D5m9qZxdDOMitzsm0jjZeYyAOCbfzg+TyhpQ6ml hNpX0aHC8zYoGEqgknXxF7DThptQb7h26MPJJ2h/RxSFh2Pz MIME-Version: 1.0 X-Received: by 2002:a92:660e:: with SMTP id a14mr13677440ilc.235.1574043241343; Sun, 17 Nov 2019 18:14:01 -0800 (PST) Date: Sun, 17 Nov 2019 18:14:01 -0800 In-Reply-To: <00000000000044cbf80576baaecd@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000042f41905979580cc@google.com> Subject: Re: possible deadlock in path_openat From: syzbot To: amir73il@gmail.com, ast@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-unionfs@vger.kernel.org, miklos@szeredi.hu, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk 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 8e54cadab447dae779f80f79c87cbeaea9594f60 Author: Al Viro Date: Sun Nov 27 01:05:42 2016 +0000 fix default_file_splice_read() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=108f4416e00000 start commit: 6d906f99 Merge tag 'arm64-fixes' of git://git.kernel.org/p.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=128f4416e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=148f4416e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=856fc6d0fbbeede9 dashboard link: https://syzkaller.appspot.com/bug?extid=a55ccfc8a853d3cff213 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101767b7200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13c15013200000 Reported-by: syzbot+a55ccfc8a853d3cff213@syzkaller.appspotmail.com Fixes: 8e54cadab447 ("fix default_file_splice_read()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection