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,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 2AEF1C4CECD for ; Tue, 17 Sep 2019 12:42:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F30B32067B for ; Tue, 17 Sep 2019 12:42:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728301AbfIQMmC (ORCPT ); Tue, 17 Sep 2019 08:42:02 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:57057 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727930AbfIQMmB (ORCPT ); Tue, 17 Sep 2019 08:42:01 -0400 Received: by mail-io1-f69.google.com with SMTP id n8so5458814ioh.23 for ; Tue, 17 Sep 2019 05:42:01 -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=EOWzZyfbf2PsTOR2XuGeTftz+ncATtL0MNUCtRnpmSE=; b=HOwbY1fv8Iytd5Pr900wCMRLgS8V5PIH3FXIKUc0XOfGKUFXSoewVBpZwWOEMsV8Ir g/+eEqq7Cn5/5ppXsmXis+YjLc8/XUEphTYkKr1uFvwxOL8CdSHuY1lTyz/gnlU9Tdqu eDJWbr63N1kCxPDsSgDVxUYriSew0qQco7AdmWcOxEyJPvd30aRpuGmFRvYqEanCmHg0 ALyBNWPrExkNqe1NToNI84aeihIymdYv1DxLkT2fdKIaiwCyDsdu8vNDF2Qn5GURd/iW TOeUOx3xHk/II8/cuGvw3oHD7dF5rsKap2kC0kzCKEMpFCfJnP6b6m5jMHEezcVPJey1 xz5w== X-Gm-Message-State: APjAAAVIxxpff2b5BWJzeiOKsbv+3SNIXz+rSdEcLSoMttnYvD88AhZu bsgox3zi4rZaoD3e2pKoZYSW/lpryKmJgu7ZFB3eevnToZmy X-Google-Smtp-Source: APXvYqzfRJsy4y4ZMCY6Mkee25knrYvCZLxgAfloFJDI8xdlPzlKgTLAQ5ybhad6fxJZizScV+KNKJwvEqz8clvlRI56Mwn4rm3U MIME-Version: 1.0 X-Received: by 2002:a02:a617:: with SMTP id c23mr3095128jam.14.1568724121126; Tue, 17 Sep 2019 05:42:01 -0700 (PDT) Date: Tue, 17 Sep 2019 05:42:01 -0700 In-Reply-To: <20190917122404.GA29364@localhost> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fda29f0592bf0b95@google.com> Subject: Re: possible deadlock in usb_deregister_dev (2) From: syzbot To: andreyknvl@google.com, gregkh@linuxfoundation.org, johan@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, oneukum@suse.com, stern@rowland.harvard.edu, 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 Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+f9549f5ee8a5416f0b95@syzkaller.appspotmail.com Tested on: commit: f0df5c1b usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan.git kernel config: https://syzkaller.appspot.com/x/.config?x=5c6633fa4ed00be5 dashboard link: https://syzkaller.appspot.com/bug?extid=f9549f5ee8a5416f0b95 compiler: gcc (GCC) 9.0.0 20181231 (experimental) patch: https://syzkaller.appspot.com/x/patch.diff?x=16753b2d600000 Note: testing is done by a robot and is best-effort only.