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 1195FC7618B for ; Thu, 25 Jul 2019 12:08:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DFC17218F0 for ; Thu, 25 Jul 2019 12:08:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728140AbfGYMIH (ORCPT ); Thu, 25 Jul 2019 08:08:07 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:43672 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726851AbfGYMIH (ORCPT ); Thu, 25 Jul 2019 08:08:07 -0400 Received: by mail-io1-f71.google.com with SMTP id q26so54619338ioi.10 for ; Thu, 25 Jul 2019 05:08:06 -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:message-id:subject:from:to; bh=5iOWbFmUgbFmOQl+e0WLrg0Wm3wQuk+35UzAKIvZNcs=; b=AMio+aaFBOJ1zXIpFBPqfhegZaZIq16qsA/E7cqTFe0aE3808mTsrwVt/Hews9alkQ SDnbBQknnnmnWCTfsqhn/Zge6a8Y2VGE2PWuNmJ3v1f/Zm/JdgFihZj1j8dQeE8jAwgN ZvTKOCs9QWHNI/c/ylQB5wf7KzBEUd5Azzjup+5Fgaa42Ok7Ij2Y99RsdJoz2IW3E8vn ASdFADNiIS9p1Ci50FjYakageDR/4DrpcERkPR2QGrCVJvqlk4jGdVcmXFz3XRguilhE dpFi1ZBkYEbp31tGBh2byrlUa1vkVJy7a4BLdsJ9qoPIEozN+hQTlqrVPurgKOfrqjc5 PdCg== X-Gm-Message-State: APjAAAWkPsAXdB7YJqFY7yLPuiG4mPwibp/lzFu0lkOU+3GQWs0gU8DD 5kk48gz6k+aB20ScuNVoYc+129ulhl31/Yy4oLtU6odubpS6 X-Google-Smtp-Source: APXvYqwx/xWAbPxZtcDcyUsUFHrVA31iLlD3g/mgUsUOn851tRPVS6iJnokHo4oF1zXEoKoidChsmXBwAr1JLsmxfLLd7bNTSxAk MIME-Version: 1.0 X-Received: by 2002:a02:c80d:: with SMTP id p13mr5363029jao.59.1564056486183; Thu, 25 Jul 2019 05:08:06 -0700 (PDT) Date: Thu, 25 Jul 2019 05:08:06 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000448f5a058e804752@google.com> Subject: WARNING in __uwb_rc_neh_rm From: syzbot To: alexios.zavras@intel.com, allison@lohutok.net, andreyknvl@google.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, rfontana@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de 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 found the following crash on: HEAD commit: 6a3599ce usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan.git usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=17eb58cc600000 kernel config: https://syzkaller.appspot.com/x/.config?x=700ca426ab83faae dashboard link: https://syzkaller.appspot.com/bug?extid=c44bb3aca1a5e07c76df compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ebb65c600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d95382600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+c44bb3aca1a5e07c76df@syzkaller.appspotmail.com ------------[ cut here ]------------ list_del corruption, ffff8881d0a03130->next is LIST_POISON1 (dead000000000100) WARNING: CPU: 0 PID: 5 at lib/list_debug.c:45 __list_del_entry_valid+0xd3/0x170 lib/list_debug.c:45 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.2.0-rc6+ #15 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 panic+0x292/0x6c9 kernel/panic.c:219 __warn.cold+0x20/0x4b kernel/panic.c:576 report_bug+0x262/0x2a0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:272 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:986 RIP: 0010:__list_del_entry_valid+0xd3/0x170 lib/list_debug.c:45 Code: 93 00 00 00 49 8b 55 08 48 39 f2 75 51 b8 01 00 00 00 48 83 c4 08 41 5c 41 5d c3 4c 89 ea 48 c7 c7 40 0b ba 85 e8 c8 d1 33 ff <0f> 0b 48 83 c4 08 31 c0 41 5c 41 5d c3 4c 89 e2 48 c7 c7 a0 0b ba RSP: 0018:ffff8881d9dc6d80 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffff8881d0a030c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103b3b8da2 RBP: 0000000000000000 R08: ffff8881d9d8e000 R09: 0000000000000008 R10: fffffbfff0d5dc9c R11: ffffffff86aee4e3 R12: dead000000000200 R13: dead000000000100 R14: ffff8881d3eab830 R15: 00000000ffffffb9 __list_del_entry include/linux/list.h:117 [inline] list_del include/linux/list.h:125 [inline] __uwb_rc_neh_rm+0xc5/0x220 drivers/uwb/neh.c:243 uwb_rc_neh_rm+0x30/0x60 drivers/uwb/neh.c:259 uwb_rc_cmd_async+0x29a/0x310 drivers/uwb/reset.c:93 __uwb_rc_cmd+0x10f/0x1e0 drivers/uwb/reset.c:171 uwb_rc_cmd+0xc2/0x130 drivers/uwb/reset.c:220 uwb_rc_reset+0x15e/0x218 drivers/uwb/reset.c:292 uwb_rc_setup+0x84/0x320 drivers/uwb/lc-rc.c:282 uwb_rc_add+0x246/0x42f drivers/uwb/lc-rc.c:351 hwarc_probe+0x3ce/0x980 drivers/uwb/hwa-rc.c:843 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361 really_probe+0x281/0x660 drivers/base/dd.c:509 driver_probe_device+0x104/0x210 drivers/base/dd.c:670 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:777 bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:843 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2111 usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210 usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266 really_probe+0x281/0x660 drivers/base/dd.c:509 driver_probe_device+0x104/0x210 drivers/base/dd.c:670 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:777 bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:843 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2111 usb_new_device.cold+0x6a4/0xe61 drivers/usb/core/hub.c:2536 hub_port_connect drivers/usb/core/hub.c:5098 [inline] hub_port_connect_change drivers/usb/core/hub.c:5213 [inline] port_event drivers/usb/core/hub.c:5359 [inline] hub_event+0x1abd/0x3550 drivers/usb/core/hub.c:5441 process_one_work+0x905/0x1570 kernel/workqueue.c:2269 worker_thread+0x96/0xe20 kernel/workqueue.c:2415 kthread+0x30b/0x410 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches