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[209.132.180.67]) by mx.google.com with ESMTP id f6si4248051ejx.0.2019.11.25.01.40.49; Mon, 25 Nov 2019 01:41:12 -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 S1727252AbfKYJiC (ORCPT + 99 others); Mon, 25 Nov 2019 04:38:02 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:35154 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727052AbfKYJiC (ORCPT ); Mon, 25 Nov 2019 04:38:02 -0500 Received: by mail-io1-f69.google.com with SMTP id x10so5565198iob.2 for ; Mon, 25 Nov 2019 01:38:01 -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=fG9KqHLE4B6rJrt8WSTq/ExbnesyYPEwEQQKonf+qKA=; b=pIcLQ7mcvHYoVrvgb1WyE0WOL27umzyP+0uFtI1lhDC2wUMKVaORdvFnkIrruJlRPc OUl3qeUQjlz2EiLO/s3EBgm2iQcf74gYWpnnjiFYkmXPgnEMEap19DOSXXzqho87v4If fOTi87n1cXgZAHHTsh2Q4RLvVIcoSRPQEgxFLIpRti/6wujsUQ0zSJxwd/HFXTj6mRcu ox3jtBJ6Oy4YrXEnl8sqg3pSCFQRO9eYofUXo36ZxNPZ95gCS7rn/OPv61S27/dW8vVF pZJpcqt05cAttCzWO3GbfYeYKeQ5R/1VXvW4kQkxqKrpoxhTTa1g0KvovSdmR8fPQkMo wNuA== X-Gm-Message-State: APjAAAW6J3Z+g2evKbk6nkmTIM5JlqfsQdLECU6ivrICcNq7VcMWnyA1 OHOwmc8NQAL62sWjT0gM2qnyaaOuJsbXSsjhtSYygPVZxf+6 MIME-Version: 1.0 X-Received: by 2002:a5d:9909:: with SMTP id x9mr9533544iol.93.1574674681278; Mon, 25 Nov 2019 01:38:01 -0800 (PST) Date: Mon, 25 Nov 2019 01:38:01 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000003b7c305982885e3@google.com> Subject: Re: INFO: rcu detected stall in hub_event From: syzbot To: andreyknvl@google.com, benjamin.tissoires@redhat.com, jikos@kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, 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 but the reproducer still triggered crash: BUG: found invalid parent_idx microsoft 0003:045E:07DA.0001: Field 0 ffff8881c0e00000 maxusage 4899 microsoft 0003:045E:07DA.0001: Usage 72 ffff8881c0e00730 microsoft 0003:045E:07DA.0001: collection 0 ffff8881d91be200 type 0 parent 0 microsoft 0003:045E:07DA.0001: BUG: found invalid parent_idx microsoft 0003:045E:07DA.0001: Start report ffff8881cb82e000 maxfield 1 microsoft 0003:045E:07DA.0001: Field 0 ffff8881c0e00000 maxusage 4899 microsoft 0003:045E:07DA.0001: Usage 72 ffff8881c0e00730 microsoft 0003:045E:07DA.0001: collection 0 ffff8881d91be200 type 0 parent 0 microsoft 0003:045E:07DA.0001: BUG: found invalid parent_idx microsoft 0003:045E:07DA.0001: No inputs registered, leaving microsoft 0003:045E:07DA.0001: hidraw0: USB HID v0.00 Device [HID 045e:07da] on usb-dummy_hcd.5-1/input0 microsoft 0003:045E:07DA.0001: no inputs found microsoft 0003:045E:07DA.0001: could not initialize ff, continuing anyway usb 6-1: USB disconnect, device number 3 Tested on: commit: 46178223 usb: gadget: add raw-gadget interface git tree: https://github.com/google/kasan.git console output: https://syzkaller.appspot.com/x/log.txt?x=14bb93cee00000 kernel config: https://syzkaller.appspot.com/x/.config?x=99c88c44660624e7 dashboard link: https://syzkaller.appspot.com/bug?extid=ec5f884c4a135aa0dbb9 compiler: gcc (GCC) 9.0.0 20181231 (experimental) patch: https://syzkaller.appspot.com/x/patch.diff?x=11c28d5ee00000