syzbot

pvrusb2: Invalid read control endpoint
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URB ffff888032bd4c00 submitted while active
WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x7b/0x18b0 drivers/usb/core/urb.c:379, CPU#0: pvrusb2-context/2344
Modules linked in:
CPU: 0 UID: 0 PID: 2344 Comm: pvrusb2-context Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/27/2026
RIP: 0010:usb_submit_urb+0x7e/0x18b0 drivers/usb/core/urb.c:379
Code: 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 27 57 f9 fa 49 83 3e 00 74 40 e8 5c 1c 8f fa 48 8d 3d 85 44 e8 08 48 89 de <67> 48 0f b9 3a b8 f0 ff ff ff eb 11 e8 41 1c 8f fa eb 05 e8 3a 1c
RSP: 0018:ffffc90006246a48 EFLAGS: 00010293
RAX: ffffffff87368154 RBX: ffff888032bd4c00 RCX: ffff88802bebdb80
RDX: 0000000000000000 RSI: ffff888032bd4c00 RDI: ffffffff901ec5e0
RBP: ffffc90006246ca0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff2023197 R12: 0000000000000cc0
R13: ffff888030e195f8 R14: ffff888032bd4c08 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125463000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6eeee1de9c CR3: 000000000e54c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 pvr2_send_request_ex+0xc66/0x21b0 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3674
 pvr2_send_request+0x38/0x50 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3822
 pvr2_i2c_read drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:130 [inline]
 pvr2_i2c_basic_op+0x446/0x930 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:172
 pvr2_i2c_xfer+0x9e3/0xda0 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:445
 __i2c_transfer+0x79a/0x2020 drivers/i2c/i2c-core-base.c:-1
 i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:470 [inline]
 __i2c_smbus_xfer+0xfca/0x1f70 drivers/i2c/i2c-core-smbus.c:608
 i2c_smbus_xfer+0x1f4/0x310 drivers/i2c/i2c-core-smbus.c:546
 i2c_smbus_read_byte_data+0x113/0x1e0 drivers/i2c/i2c-core-smbus.c:143
 saa711x_detect_chip drivers/media/i2c/saa7115.c:1710 [inline]
 saa711x_probe+0x1d0/0x15a0 drivers/media/i2c/saa7115.c:1816
 i2c_device_probe+0x894/0xc00 drivers/i2c/i2c-core-base.c:592
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x267/0xaf0 drivers/base/dd.c:661
 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:803
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:833
 __device_attach_driver+0x279/0x430 drivers/base/dd.c:961
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c5/0x450 drivers/base/dd.c:1033
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1088
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:574
 device_add+0x7b6/0xb70 drivers/base/core.c:3689
 i2c_new_client_device+0xa1f/0x1160 drivers/i2c/i2c-core-base.c:1019
 v4l2_i2c_new_subdev_board+0x86/0x250 drivers/media/v4l2-core/v4l2-i2c.c:81
 v4l2_i2c_new_subdev+0x167/0x210 drivers/media/v4l2-core/v4l2-i2c.c:136
 pvr2_hdw_load_subdev drivers/media/usb/pvrusb2/pvrusb2-hdw.c:-1 [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+0xe80/0x3c50 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338
 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline]
 pvr2_context_thread_func+0x490/0xb40 drivers/media/usb/pvrusb2/pvrusb2-context.c:158
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 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:	89 f0                	mov    %esi,%eax
   2:	48 c1 e8 03          	shr    $0x3,%rax
   6:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
   b:	74 08                	je     0x15
   d:	4c 89 f7             	mov    %r14,%rdi
  10:	e8 27 57 f9 fa       	call   0xfaf9573c
  15:	49 83 3e 00          	cmpq   $0x0,(%r14)
  19:	74 40                	je     0x5b
  1b:	e8 5c 1c 8f fa       	call   0xfa8f1c7c
  20:	48 8d 3d 85 44 e8 08 	lea    0x8e84485(%rip),%rdi        # 0x8e844ac
  27:	48 89 de             	mov    %rbx,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	b8 f0 ff ff ff       	mov    $0xfffffff0,%eax
  34:	eb 11                	jmp    0x47
  36:	e8 41 1c 8f fa       	call   0xfa8f1c7c
  3b:	eb 05                	jmp    0x42
  3d:	e8                   	.byte 0xe8
  3e:	3a                   	.byte 0x3a
  3f:	1c                   	.byte 0x1c