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=-11.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 EABF9C433ED for ; Mon, 17 May 2021 10:08:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C3DEE6128A for ; Mon, 17 May 2021 10:08:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236260AbhEQKJV (ORCPT ); Mon, 17 May 2021 06:09:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:55106 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231658AbhEQKJV (ORCPT ); Mon, 17 May 2021 06:09:21 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 555F8611CA; Mon, 17 May 2021 10:08:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1621246085; bh=VFT5apLbfhc0dDJC9HhR1pYRGnwB4pdUBgycStr+hwY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=YAaWxQjzqUFxPQABYA1A6C8gLYcxxnkaBIv5Rrd/49WUgAGkfiV/04OSDVlkt3Rs0 XfyI08tJzdTFuNa4pDN0Z4tS0u3S4PV5d6g/DEyc/Kg1pxrKwD51MBxD3krWt1jcYa RDQMgKi39ct5l2OP/cmxs8iq4fK+uywgzc1fk6E4oGvWjED3qFJBxalu4c2iuKWPLj CRi7FjhtZ3Wd2P3cm02dAljdie9ofQTXUlW6d2rSK2B3y6Iq0PXZyXxqm9Z9DutvKW 9VJl9kLBHJ6QjmhEA9V95cXMr/bUPZp9UuzscZtJawZl7JFZVm33g5teFERWcH9N3w soe1S9Ha1NFVA== Received: from johan by xi.lan with local (Exim 4.94.2) (envelope-from ) id 1liaAN-0006K9-AM; Mon, 17 May 2021 12:08:03 +0200 Date: Mon, 17 May 2021 12:08:03 +0200 From: Johan Hovold To: syzbot Cc: benjamin.tissoires@redhat.com, jikos@kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, rydberg@bitmath.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] general protection fault in magicmouse_remove Message-ID: References: <000000000000b5a0af05c28368b4@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000b5a0af05c28368b4@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org On Mon, May 17, 2021 at 02:42:16AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: d665ea6e Merge tag 'for-linus-5.13-rc1' of git://git.kerne.. > git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing > console output: https://syzkaller.appspot.com/x/log.txt?x=11afac45d00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f635d6ce17da8a68 > dashboard link: https://syzkaller.appspot.com/bug?extid=ee6f6e2e68886ca256a8 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16d48069d00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12023fa9d00000 > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+ee6f6e2e68886ca256a8@syzkaller.appspotmail.com > > usb 1-1: New USB device found, idVendor=05ac, idProduct=0265, bcdDevice= 0.40 > usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 > usb 1-1: config 0 descriptor?? > usb 1-1: USB disconnect, device number 2 > general protection fault, probably for non-canonical address 0xdffffc000000002b: 0000 [#1] SMP KASAN > KASAN: null-ptr-deref in range [0x0000000000000158-0x000000000000015f] > CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.12.0-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Workqueue: usb_hub_wq hub_event > RIP: 0010:timer_is_static_object+0x20/0x90 kernel/time/timer.c:625 > Code: 84 00 00 00 00 00 0f 1f 40 00 41 54 53 48 89 fb e8 d5 86 10 00 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 4f 45 31 e4 48 83 7b 08 00 74 0c e8 ab 86 10 00 44 > RSP: 0018:ffffc9000007f330 EFLAGS: 00010006 > RAX: dffffc0000000000 RBX: 0000000000000150 RCX: 0000000000000000 > RDX: 000000000000002b RSI: ffffffff8130663b RDI: 0000000000000158 > RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff8a5c35ab > R10: fffffbfff14b86b5 R11: 0000000000000000 R12: dffffc0000000000 > R13: ffffffff86090c00 R14: 0000000000000150 R15: 1ffff9200000fe6b > FS: 0000000000000000(0000) GS:ffff8881f6a00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00000000004ba438 CR3: 00000001097bb000 CR4: 00000000001506f0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > debug_object_assert_init lib/debugobjects.c:886 [inline] > debug_object_assert_init+0x1df/0x2e0 lib/debugobjects.c:861 > debug_timer_assert_init kernel/time/timer.c:737 [inline] > debug_assert_init kernel/time/timer.c:782 [inline] > del_timer+0x6d/0x110 kernel/time/timer.c:1202 > try_to_grab_pending+0x6d/0xd0 kernel/workqueue.c:1252 > __cancel_work_timer+0xa6/0x570 kernel/workqueue.c:3098 > magicmouse_remove+0x3a/0x50 drivers/hid/hid-magicmouse.c:782 For the record, fixed here: https://lore.kernel.org/r/20210517100430.20509-1-johan@kernel.org Johan