linux-kernel - WARNING in usb_submit

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Message-ID: <94eb2c1fae04f3526c055d66d147@google.com>
Date:   Tue, 07 Nov 2017 08:11:13 -0800
From:   syzbot 
        <bot+50d191d34989b5aa28596b0a2cb20c96f3ca4650@...kaller.appspotmail.com>
To:     felipe.balbi@...ux.intel.com, gregkh@...uxfoundation.org,
        krinkin.m.u@...il.com, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        tiwai@...e.de, vskrishn@...eaurora.org
Subject: WARNING in usb_submit_urb

Hello,

syzkaller hit the following crash on  
36ef71cae353f88fd6e095e2aaa3e5953af1685d
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
compiler: gcc (GCC) 7.1.1 20170620
.config is attached
Raw console output is attached.
C reproducer is attached
syzkaller reproducer is attached. See https://goo.gl/kgGztJ
for information about syzkaller reproducers


------------[ cut here ]------------
WARNING: CPU: 3 PID: 2986 at drivers/usb/core/urb.c:498  
usb_submit_urb+0xeb9/0x10f0 drivers/usb/core/urb.c:497
Kernel panic - not syncing: panic_on_warn set ...

CPU: 3 PID: 2986 Comm: syzkaller630695 Not tainted  
4.14.0-rc5-next-20171018+ #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
  __dump_stack lib/dump_stack.c:16 [inline]
  dump_stack+0x194/0x257 lib/dump_stack.c:52
  panic+0x1e4/0x41c kernel/panic.c:183
  __warn+0x1c4/0x1e0 kernel/panic.c:546
  report_bug+0x211/0x2d0 lib/bug.c:183
  fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:177
  do_trap_no_signal arch/x86/kernel/traps.c:211 [inline]
  do_trap+0x260/0x390 arch/x86/kernel/traps.c:260
  do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:297
  do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:310
  invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:905
RIP: 0010:usb_submit_urb+0xeb9/0x10f0 drivers/usb/core/urb.c:497
RSP: 0018:ffff880039ddf3f0 EFLAGS: 00010286
RAX: 0000000000000022 RBX: ffff88006ab64f00 RCX: 0000000000000000
RDX: 0000000000000022 RSI: 1ffff100073bbe3e RDI: ffffed00073bbe72
RBP: ffff880039ddf448 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: ffff88006b5d72c0 R15: 000000000000007f
  proc_do_submiturb+0x1f53/0x3860 drivers/usb/core/devio.c:1778
  proc_submiturb_compat+0x528/0x7e0 drivers/usb/core/devio.c:1999
  usbdev_do_ioctl+0x1632/0x3670 drivers/usb/core/devio.c:2475
  usbdev_ioctl+0x25/0x30 drivers/usb/core/devio.c:2552
  vfs_ioctl fs/ioctl.c:45 [inline]
  do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:685
  SYSC_ioctl fs/ioctl.c:700 [inline]
  SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691
  entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x439089
RSP: 002b:00007ffd7d8a88b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000439089
RDX: 0000000020274ffa RSI: 00000000802c550a RDI: 0000000000000003
RBP: 0000000000000082 R08: 00000000000000fb R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000401ce0 R14: 0000000000401d70 R15: 0000000000000000
Dumping ftrace buffer:
    (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..


---
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See https://goo.gl/tpsmEJ for details.
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