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=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 6E916C73C46 for ; Tue, 9 Jul 2019 12:27:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 50BA0216E3 for ; Tue, 9 Jul 2019 12:27:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726961AbfGIM1K (ORCPT ); Tue, 9 Jul 2019 08:27:10 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:50009 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726780AbfGIM1J (ORCPT ); Tue, 9 Jul 2019 08:27:09 -0400 Received: by mail-io1-f71.google.com with SMTP id x24so22857263ioh.16 for ; Tue, 09 Jul 2019 05:27:09 -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=wGE+pCqM9U0ThSNlShzZqZmZ/rkFAVz8zcYOE/85xRI=; b=Bsqom3s1NUBU2ypJgQ2zICM0rNF4+WV7F/wkjgjo5Vwb5PVIziU3sja5GqZEV99s8k omySuaPTmlfYMZfZp+qhBEtFCK6kCmxYU50RynsF6b31Rom8aXgToTkODCNhSYHsr/YF FpZINQ5ST0r7fJnhfVcYV+kwOAaqSTJxeH3wxFizgzM9RIyROqil2yr9Qc8YzQGSyZ8O U3MrIQWT5AJbwtainzG+4m43ZtIe0z/+xdaP0zzoy1PImLwasupFLgmJcPHpysj/L4WX 56IK0DwBTeRQR4CaU9nhBncUeN9MsqkAzzt90RVMfahiSGuHpDDgAxwG7L5cE2ilJiuv H2RA== X-Gm-Message-State: APjAAAVQb7oCvm36AwCtVIuyxw0vED0Z7YZHC95fUZiT5CkdQ36N7MZo WlpUAUupyakcc4nDpy4BngEkaI/VbY3oJ3aBknAK4F2NsMcI X-Google-Smtp-Source: APXvYqyJduRQ0pZSIv4d/Cm75e5pIKiDdbVdx0Z+vvh/sHEoBoIiKAz5RHZbmnGKqpg5iiPceGBd55nVJrN/8kZ2+tL6lAyx6i2Q MIME-Version: 1.0 X-Received: by 2002:a5e:881a:: with SMTP id l26mr7422864ioj.185.1562675228577; Tue, 09 Jul 2019 05:27:08 -0700 (PDT) Date: Tue, 09 Jul 2019 05:27:08 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e617ad058d3eade5@google.com> Subject: WARNING in vmk80xx_write_packet/usb_submit_urb From: syzbot To: andreyknvl@google.com, gregkh@linuxfoundation.org, gustavo@embeddedor.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.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 Hello, syzbot found the following crash on: HEAD commit: 7829a896 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=160f6aaba00000 kernel config: https://syzkaller.appspot.com/x/.config?x=f6d4561982f71f63 dashboard link: https://syzkaller.appspot.com/bug?extid=5205eb2f17de3e01946e compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11b8dc15a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10d8cbb3a00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+5205eb2f17de3e01946e@syzkaller.appspotmail.com usb 1-1: config 0 interface 104 altsetting 0 bulk endpoint 0x2 has invalid maxpacket 1 usb 1-1: New USB device found, idVendor=10cf, idProduct=5502, bcdDevice=32.ff usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? ------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 1 PID: 22 at drivers/usb/core/urb.c:477 usb_submit_urb+0x1188/0x13b0 drivers/usb/core/urb.c:477 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.2.0-rc6+ #13 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:usb_submit_urb+0x1188/0x13b0 drivers/usb/core/urb.c:477 Code: 4d 85 ed 74 2c e8 78 db e8 fd 4c 89 f7 e8 a0 36 13 ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 80 23 1a 86 e8 03 a0 be fd <0f> 0b e9 20 f4 ff ff e8 4c db e8 fd 4c 89 f2 48 b8 00 00 00 00 00 RSP: 0018:ffff8881d9f8eff8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103b3f1df1 RBP: ffff8881d9ae5a50 R08: ffff8881d9e63000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8881d3801e88 R14: ffff8881cf0391a0 R15: ffff8881d9ae5800 usb_start_wait_urb+0x108/0x2b0 drivers/usb/core/message.c:57 usb_bulk_msg+0x228/0x550 drivers/usb/core/message.c:253 vmk80xx_write_packet+0x1df/0x260 drivers/staging/comedi/drivers/vmk80xx.c:213 vmk80xx_reset_device drivers/staging/comedi/drivers/vmk80xx.c:226 [inline] vmk80xx_auto_attach+0x13b1/0x17c0 drivers/staging/comedi/drivers/vmk80xx.c:814 comedi_auto_config+0x16e/0x250 drivers/staging/comedi/drivers.c:1067 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+0x8c1/0x1016 drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x1ada/0x3590 drivers/usb/core/hub.c:5432 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