syzbot

pvrusb2: Invalid read control endpoint
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URB ffff88802a666200 submitted while active
WARNING: drivers/usb/core/urb.c:380 at usb_submit_urb+0x15fa/0x1910 drivers/usb/core/urb.c:380, CPU#1: pvrusb2-context/2489
Modules linked in:
CPU: 1 UID: 0 PID: 2489 Comm: pvrusb2-context Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:usb_submit_urb+0x15fd/0x1910 drivers/usb/core/urb.c:380
Code: 00 48 8b 04 24 48 8b 90 b0 00 00 00 e9 73 ff ff ff bb ed ff ff ff e9 be f2 ff ff e8 4d d8 b8 fa 48 8d 3d 56 54 96 09 48 89 de <67> 48 0f b9 3a bb f0 ff ff ff e9 a0 f2 ff ff c7 44 24 30 00 00 00
RSP: 0018:ffffc9000e05ed68 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802a666200 RCX: ffffffff8828bb41
RDX: ffff88802f890000 RSI: ffff88802a666200 RDI: ffffffff90e616d0
RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000c0008200 R14: ffff8880381b4000 R15: ffff888038775628
FS:  0000000000000000(0000) GS:ffff8880d644a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f84638436d4 CR3: 0000000033d32000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 pvr2_send_request_ex+0x7ed/0x1ea0 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3676
 pvr2_send_request+0x3a/0x50 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3824
 pvr2_i2c_read+0x20c/0x670 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:130
 pvr2_i2c_basic_op+0xa4/0x100 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:172
 pvr2_i2c_xfer+0x380/0xb50 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:445
 __i2c_transfer+0x5d9/0x17f0 drivers/i2c/i2c-core-base.c:2261
 i2c_smbus_xfer_emulated+0x22a/0x10e0 drivers/i2c/i2c-core-smbus.c:470
 __i2c_smbus_xfer+0x5b7/0x1080 drivers/i2c/i2c-core-smbus.c:608
 i2c_smbus_xfer+0x185/0x3c0 drivers/i2c/i2c-core-smbus.c:546
 i2c_smbus_read_byte_data+0x135/0x1e0 drivers/i2c/i2c-core-smbus.c:143
 saa711x_detect_chip drivers/media/i2c/saa7115.c:1710 [inline]
 saa711x_probe+0x1e1/0x870 drivers/media/i2c/saa7115.c:1816
 i2c_device_probe+0x658/0xd10 drivers/i2c/i2c-core-base.c:592
 call_driver_probe drivers/base/dd.c:583 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:661
 __driver_probe_device+0x1de/0x400 drivers/base/dd.c:803
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:833
 __device_attach_driver+0x1ff/0x3e0 drivers/base/dd.c:961
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1033
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1088
 bus_probe_device+0x64/0x160 drivers/base/bus.c:574
 device_add+0x11d9/0x1950 drivers/base/core.c:3689
 i2c_new_client_device+0x660/0xd30 drivers/i2c/i2c-core-base.c:1019
 v4l2_i2c_new_subdev_board+0xb6/0x2b0 drivers/media/v4l2-core/v4l2-i2c.c:81
 v4l2_i2c_new_subdev+0x13e/0x190 drivers/media/v4l2-core/v4l2-i2c.c:136
 pvr2_hdw_load_subdev drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2022 [inline]
 pvr2_hdw_load_modules drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2074 [inline]
 pvr2_hdw_setup_low drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2155 [inline]
 pvr2_hdw_setup drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2261 [inline]
 pvr2_hdw_initialize+0x2158/0x3710 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338
 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline]
 pvr2_context_thread_func+0x253/0x920 drivers/media/usb/pvrusb2/pvrusb2-context.c:158
 kthread+0x370/0x450 kernel/kthread.c:467
 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 48 8b             	add    %cl,-0x75(%rax)
   3:	04 24                	add    $0x24,%al
   5:	48 8b 90 b0 00 00 00 	mov    0xb0(%rax),%rdx
   c:	e9 73 ff ff ff       	jmp    0xffffff84
  11:	bb ed ff ff ff       	mov    $0xffffffed,%ebx
  16:	e9 be f2 ff ff       	jmp    0xfffff2d9
  1b:	e8 4d d8 b8 fa       	call   0xfab8d86d
  20:	48 8d 3d 56 54 96 09 	lea    0x9965456(%rip),%rdi        # 0x996547d
  27:	48 89 de             	mov    %rbx,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	bb f0 ff ff ff       	mov    $0xfffffff0,%ebx
  34:	e9 a0 f2 ff ff       	jmp    0xfffff2d9
  39:	c7                   	.byte 0xc7
  3a:	44 24 30             	rex.R and $0x30,%al
  3d:	00 00                	add    %al,(%rax)