pvrusb2: Invalid read control endpoint ------------[ cut here ]------------ URB ffff888029df7f00 submitted while active WARNING: drivers/usb/core/urb.c:380 at usb_submit_urb+0x7b/0x18d0 drivers/usb/core/urb.c:380, 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 10/25/2025 RIP: 0010:usb_submit_urb+0x7e/0x18d0 drivers/usb/core/urb.c:380 Code: 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 07 70 1d fb 49 83 3e 00 74 40 e8 7c c7 b6 fa 48 8d 3d 55 69 c5 08 48 89 de <67> 48 0f b9 3a b8 f0 ff ff ff eb 11 e8 61 c7 b6 fa eb 05 e8 5a c7 RSP: 0018:ffffc900054868a0 EFLAGS: 00010293 RAX: ffffffff870b30e4 RBX: ffff888029df7f00 RCX: ffff88802ae80000 RDX: 0000000000000000 RSI: ffff888029df7f00 RDI: ffffffff8fd09a40 RBP: ffffc90005486b00 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f87a0f R12: 0000000000000cc0 R13: ffff888060b815f8 R14: ffff888029df7f08 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881259dc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f782f1cde9c CR3: 0000000072f24000 CR4: 00000000003526f0 Call Trace: pvr2_send_request_ex+0xc2a/0x2030 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3676 pvr2_send_request+0x38/0x50 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3819 pvr2_i2c_read drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:130 [inline] pvr2_i2c_basic_op+0x44e/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+0x871/0x2110 drivers/i2c/i2c-core-base.c:-1 i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:470 [inline] __i2c_smbus_xfer+0xf80/0x1e40 drivers/i2c/i2c-core-smbus.c:608 i2c_smbus_xfer+0x275/0x3c0 drivers/i2c/i2c-core-smbus.c:546 i2c_smbus_read_byte_data+0xfe/0x1c0 drivers/i2c/i2c-core-smbus.c:143 saa711x_detect_chip drivers/media/i2c/saa7115.c:1710 [inline] saa711x_probe+0x1c1/0x1570 drivers/media/i2c/saa7115.c:1816 i2c_device_probe+0x87e/0xc00 drivers/i2c/i2c-core-base.c:592 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0xad0 drivers/base/dd.c:659 __driver_probe_device+0x18c/0x320 drivers/base/dd.c:801 driver_probe_device+0x4f/0x240 drivers/base/dd.c:831 __device_attach_driver+0x279/0x430 drivers/base/dd.c:959 bus_for_each_drv+0x251/0x2e0 drivers/base/bus.c:500 __device_attach+0x2b8/0x430 drivers/base/dd.c:1031 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1086 bus_probe_device+0x12a/0x220 drivers/base/bus.c:574 device_add+0x7b6/0xb80 drivers/base/core.c:3689 i2c_new_client_device+0xa11/0x1150 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+0x14a/0x1e0 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+0xe18/0x3ac0 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline] pvr2_context_thread_func+0x487/0xaf0 drivers/media/usb/pvrusb2/pvrusb2-context.c:158 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 ---------------- 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 07 70 1d fb call 0xfb1d701c 15: 49 83 3e 00 cmpq $0x0,(%r14) 19: 74 40 je 0x5b 1b: e8 7c c7 b6 fa call 0xfab6c79c 20: 48 8d 3d 55 69 c5 08 lea 0x8c56955(%rip),%rdi # 0x8c5697c 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 61 c7 b6 fa call 0xfab6c79c 3b: eb 05 jmp 0x42 3d: e8 .byte 0xe8 3e: 5a pop %rdx 3f: c7 .byte 0xc7