linux-kernel - WARNING in ati_remote_sendpacket/usb_submit

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Message-ID: <000000000000d16cc7058e589afa@google.com>
Date:   Tue, 23 Jul 2019 05:48:09 -0700
From:   syzbot <syzbot+998261c2ae5932458f6c@...kaller.appspotmail.com>
To:     andreyknvl@...gle.com, gregkh@...uxfoundation.org,
        gustavo@...eddedor.com, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: WARNING in ati_remote_sendpacket/usb_submit_urb

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=14a3cf4c600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=700ca426ab83faae
dashboard link: https://syzkaller.appspot.com/bug?extid=998261c2ae5932458f6c
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12bb21f4600000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15cf5c64600000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+998261c2ae5932458f6c@...kaller.appspotmail.com

usb 1-1: config 0 interface 7 altsetting 0 endpoint 0xF has invalid  
maxpacket 368, setting to 64
usb 1-1: New USB device found, idVendor=0bc7, idProduct=0003,  
bcdDevice=2f.f7
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: 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+ #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:usb_submit_urb+0x1188/0x13b0 /drivers/usb/core/urb.c:477
Code: 4d 85 ed 74 2c e8 f8 d3 f4 fd 4c 89 f7 e8 a0 51 1c ff 41 89 d8 44 89  
e1 4c 89 ea 48 89 c6 48 c7 c7 00 0e f7 85 e8 83 98 ca fd <0f> 0b e9 20 f4  
ff ff e8 cc d3 f4 fd 4c 89 f2 48 b8 00 00 00 00 00
RSP: 0018:ffff8881d9eff130 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8127ef3d RDI: ffffed103b3dfe18
RBP: ffff8881d40c7150 R08: ffff8881d9e36000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffff8881c7bb6450 R14: ffff8881d05d3c20 R15: ffff8881d409da00
  ati_remote_sendpacket+0x1ee/0x540 /drivers/media/rc/ati_remote.c:416
  ati_remote_initialize /drivers/media/rc/ati_remote.c:797 [inline]
  ati_remote_probe+0x1254/0x1fda /drivers/media/rc/ati_remote.c:889
  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..


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