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=-5.7 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 E7AC0C0651F for ; Thu, 4 Jul 2019 14:09:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C5CAB218A0 for ; Thu, 4 Jul 2019 14:09:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727382AbfGDOJH (ORCPT ); Thu, 4 Jul 2019 10:09:07 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:44510 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727229AbfGDOJG (ORCPT ); Thu, 4 Jul 2019 10:09:06 -0400 Received: by mail-io1-f70.google.com with SMTP id s9so3329936iob.11 for ; Thu, 04 Jul 2019 07:09:06 -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:in-reply-to:message-id:subject :from:to; bh=ihONyH8UAyP8YEt7eORDaqs5Q56aaulsoMnZyH6j0Ek=; b=p6IZyJzMVInVA2RFBJrlqAtRU+cquCx5SbMyomokdRoOE6sP+IdvJ/kOBitLtgydI4 bB9rn8NP3JMbQtHRkISd87Cvu3/gRSE25SWue6fBPEIAOXwo0mcMBlifDdXZD/jnbo5k nXxDH45qCA+Z9FTeQpQxtgK5U10a1/qFTISBbBlgDO6bJXYlCRVmjdj58GYgd2pFHKbA Er/Ay51Ks1FPejMSA/H1Qk6P/LC/iUr7emHmLP9HI5yo97WLjdf9MtYK6rKX3JL6aH5+ w7kSuFaULJLXf2rxjPf1njw7akZjOCKnwA0zacNEVBeP+r4jsQw2BFPf+fY7ZTOV9O/h HqcQ== X-Gm-Message-State: APjAAAV51DEuKCLeJ/BW8QgUvdG0xEvGrEk2HA1OwiBnYCnOL4oKXS1B iWAT78Bqe8pUE1nLFJbgeley/HPzF//SzKcVfuNmuwk+45fA X-Google-Smtp-Source: APXvYqzzTMgKs5gdQbfrqCY/mlGs0xnXZ9P+2aRYZ+z7FjaeXEihcDHvIMKMCU2+fqjMo4FHvgULPwB0CeLYufrWziX6K6g/zDFD MIME-Version: 1.0 X-Received: by 2002:a02:22c6:: with SMTP id o189mr4144787jao.35.1562249345637; Thu, 04 Jul 2019 07:09:05 -0700 (PDT) Date: Thu, 04 Jul 2019 07:09:05 -0700 In-Reply-To: <000000000000a0b1df058cb460c8@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004c2556058cdb850c@google.com> Subject: Re: WARNING in sisusb_send_bulk_msg/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-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has found a reproducer for 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=12e5bf93a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=f6d4561982f71f63 dashboard link: https://syzkaller.appspot.com/bug?extid=23be03b56c5259385d79 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11effc85a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172189aba00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+23be03b56c5259385d79@syzkaller.appspotmail.com usb 1-1: string descriptor 0 read error: -22 usb 1-1: New USB device found, idVendor=0711, idProduct=0550, bcdDevice=da.7e usb 1-1: New USB device strings: Mfr=37, Product=1, SerialNumber=1 usb 1-1: USB2VGA dongle found at address 2 usb 1-1: Allocated 8 output buffers ------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 1 PID: 21 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: 21 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:ffff8881d9efed28 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103b3dfd97 RBP: ffff8881d09bbb80 R08: ffff8881d9e36000 R09: ffffed103b665d30 R10: ffffed103b665d2f R11: ffff8881db32e97f R12: 0000000000000003 R13: ffff8881ccdd79a8 R14: ffff8881d03711a0 R15: ffff8881d9449000 sisusb_bulkout_msg drivers/usb/misc/sisusbvga/sisusb.c:238 [inline] sisusb_send_bulk_msg.constprop.0+0x88a/0x1030 drivers/usb/misc/sisusbvga/sisusb.c:393 sisusb_send_bridge_packet.constprop.0+0x11c/0x240 drivers/usb/misc/sisusbvga/sisusb.c:581 sisusb_do_init_gfxdevice+0x8a/0x450 drivers/usb/misc/sisusbvga/sisusb.c:2137 sisusb_init_gfxdevice+0xe0/0x18d0 drivers/usb/misc/sisusbvga/sisusb.c:2237 sisusb_probe+0x924/0xbcb drivers/usb/misc/sisusbvga/sisusb.c:3122 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..