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[209.132.180.67]) by mx.google.com with ESMTP id c26si18926190edc.416.2019.11.20.07.28.40; Wed, 20 Nov 2019 07:29:04 -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 S1729499AbfKTMBB (ORCPT + 99 others); Wed, 20 Nov 2019 07:01:01 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:54314 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729037AbfKTMBB (ORCPT ); Wed, 20 Nov 2019 07:01:01 -0500 Received: by mail-il1-f198.google.com with SMTP id t67so22263425ill.21 for ; Wed, 20 Nov 2019 04:01:00 -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=ukGeEFjZg7Kbee1zzEtl/Q1DuM+LvaagxRP8dEWk9kY=; b=h0iLyz+XuHL1R49EPmXLP0Mvb0O5YERjIkx0m8VnIqxHSxcV5KUvD4D8nY2losPwHE N7p0KcgUI4j5UYXnYkx4YMj2LovWctMcEfgfwensK6aGiaLYCqF2gkl1tNHWHTcWDcuc 2xS5WzHxrqY5al1bN8bbSc5oYHiEQPXkaaMJ9PjooFihMUFTN2V23AQHzfc0e6sUKquy jqkgzBSaWpQvgIr8cVuRrymCvP0jjMOnaP4h0C37juXpmeoHjLXgBtQrihDtgXsPEQq3 a4dxn4WxgZ81Yy29M4BB6KficwznMBAIvLK97YW8geJDOlpuPl+kwfMQGfKIiqwTaVGc Tu/g== X-Gm-Message-State: APjAAAV59bb+evUSIbYbF+W1uOxlmq5/iS0XNEZ6MSkNZqLWBevEqFuS jld0sxu1jCodyt1ws0de8nbxkhxfUdmuSHx59WFhdsIfdmWJ MIME-Version: 1.0 X-Received: by 2002:a92:dccd:: with SMTP id b13mr2778086ilr.160.1574251260647; Wed, 20 Nov 2019 04:01:00 -0800 (PST) Date: Wed, 20 Nov 2019 04:01:00 -0800 In-Reply-To: <0000000000006ad6030574fead2e@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002da08e0597c5efbd@google.com> Subject: Re: possible deadlock in mon_bin_vma_fault From: syzbot To: arnd@arndb.de, gregkh@linuxfoundation.org, jrdr.linux@gmail.com, keescook@chromium.org, kstewart@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, viro@zeniv.linux.org.uk, zaitcev@redhat.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 46eb14a6e1585d99c1b9f58d0e7389082a5f466b Author: Pete Zaitcev Date: Mon Jan 8 21:46:41 2018 +0000 USB: fix usbmon BUG trigger bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14deb012e00000 start commit: 58c3f14f Merge tag 'riscv-for-linus-4.19-rc2' of git://git.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=16deb012e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=12deb012e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=531a917630d2a492 dashboard link: https://syzkaller.appspot.com/bug?extid=56f9673bb4cdcbeb0e92 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13dca13e400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17cbe492400000 Reported-by: syzbot+56f9673bb4cdcbeb0e92@syzkaller.appspotmail.com Fixes: 46eb14a6e158 ("USB: fix usbmon BUG trigger") For information about bisection process see: https://goo.gl/tpsmEJ#bisection