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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 5AE36C432C0 for ; Wed, 20 Nov 2019 12:01:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3D8C922444 for ; Wed, 20 Nov 2019 12:01:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729495AbfKTMBB (ORCPT ); Wed, 20 Nov 2019 07:01:01 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:54434 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729050AbfKTMBB (ORCPT ); Wed, 20 Nov 2019 07:01:01 -0500 Received: by mail-io1-f69.google.com with SMTP id f66so7834758ioa.21 for ; Wed, 20 Nov 2019 04:01:01 -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=ukGeEFjZg7Kbee1zzEtl/Q1DuM+LvaagxRP8dEWk9kY=; b=MUCofUzY3oJ2jIGvqa6kuhuNxz6OfjIAw042j70ei8fMM5+Qsx6Cag23WsOovu7heQ hbLYGebWLqo72G4VhyJQpAsxIknJosYN9Sl1diqdrU/7YlJ2icalmIXEw1kOsQJqgR9c vTHZKkbXpMeuTdDvMHGvdu9b+KbLdvIpSl/nn54AnhgCXhNaPj+tuNe0glvOBi0UJXph xiOs1KEthopQK+va0OFmCss2cfD89EcR5o8eC+uRz8MhI5eIwIgMPzf1iafBDczKqx8K VmpYO2XRVa8MFit2LorTGV2ksrp6lXifswy1Q7rUZSI4y6UPJz1fb6mVecJu4UEcnFej 2m0g== X-Gm-Message-State: APjAAAU92TgtrgxkaL7qpy/gJpYwqboTzXLp+ZWNlNOdhD0GJgxcx+1c jNLEJoLwzvX5S5I1QKYGGSq2IbCHm07SgLMrF9SjBjbzT8Jp X-Google-Smtp-Source: APXvYqzEZF16qz+QeJoyw8OIWF/W+6iZXGY/pQaxuMo4inRh3rtqbw5coAxc5p3e6qtT1rQV7R3VziSrh7PkIvdMKmeoAWxAkumI 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-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@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