pvrusb2: Invalid read control endpoint ------------[ cut here ]------------ URB ffff88810b767d00 submitted while active WARNING: drivers/usb/core/urb.c:380 at 0x0, CPU#0: pvrusb2-context/1307 Modules linked in: CPU: 0 UID: 0 PID: 1307 Comm: pvrusb2-context Not tainted syzkaller #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:usb_submit_urb+0x15a3/0x1970 drivers/usb/core/urb.c:380 Code: 4b 03 00 00 48 8b 04 24 48 8b 90 b0 00 00 00 eb 91 bb ed ff ff ff e9 07 f3 ff ff e8 97 f5 c5 fc 48 8d 3d 50 45 f0 05 48 89 de <67> 48 0f b9 3a bb f0 ff ff ff e9 e9 f2 ff ff e8 79 f5 c5 fc 0f 1f RSP: 0018:ffffc90001d6ed20 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88810b767d00 RCX: ffffffff8591e3bf RDX: ffff8881103d8000 RSI: ffff88810b767d00 RDI: ffffffff8aaa3c30 RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8881103d8aa8 R12: 0000000000000000 R13: 00000000c0008200 R14: ffff888122cd9000 R15: ffff888120d05610 FS: 0000000000000000(0000) GS:ffff888268bf5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fda1b821e9c CR3: 00000000090a6000 CR4: 00000000003506f0 Call Trace: pvr2_send_request_ex+0x7eb/0x1ef0 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3676 pvr2_send_request+0x3a/0x50 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3819 pvr2_i2c_read+0x203/0x6d0 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:130 pvr2_i2c_basic_op+0xcf/0xf0 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:172 pvr2_i2c_xfer+0x380/0xfd0 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:445 __i2c_transfer+0x6b6/0x2100 drivers/i2c/i2c-core-base.c:2261 i2c_smbus_xfer_emulated+0x230/0x1210 drivers/i2c/i2c-core-smbus.c:470 __i2c_smbus_xfer drivers/i2c/i2c-core-smbus.c:608 [inline] __i2c_smbus_xfer+0x836/0xf60 drivers/i2c/i2c-core-smbus.c:554 i2c_smbus_xfer drivers/i2c/i2c-core-smbus.c:546 [inline] i2c_smbus_xfer+0x200/0x3c0 drivers/i2c/i2c-core-smbus.c:536 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+0x234/0x20b0 drivers/media/i2c/saa7115.c:1816 i2c_device_probe+0x66e/0xd90 drivers/i2c/i2c-core-base.c:592 call_driver_probe drivers/base/dd.c:581 [inline] really_probe+0x241/0xb20 drivers/base/dd.c:659 __driver_probe_device+0x1de/0x470 drivers/base/dd.c:801 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x1df/0x350 drivers/base/dd.c:959 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500 __device_attach+0x1e4/0x4e0 drivers/base/dd.c:1031 device_initial_probe+0xaa/0xc0 drivers/base/dd.c:1086 bus_probe_device+0x64/0x150 drivers/base/bus.c:574 device_add+0x116e/0x1980 drivers/base/core.c:3689 i2c_new_client_device+0x660/0xed0 drivers/i2c/i2c-core-base.c:1019 v4l2_i2c_new_subdev_board+0xb6/0x300 drivers/media/v4l2-core/v4l2-i2c.c:81 v4l2_i2c_new_subdev+0x14f/0x1c0 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+0x28d0/0x4510 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline] pvr2_context_thread_func+0x253/0x9b0 drivers/media/usb/pvrusb2/pvrusb2-context.c:158 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x74f/0xa30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 ---------------- Code disassembly (best guess): 0: 4b 03 00 rex.WXB add (%r8),%rax 3: 00 48 8b add %cl,-0x75(%rax) 6: 04 24 add $0x24,%al 8: 48 8b 90 b0 00 00 00 mov 0xb0(%rax),%rdx f: eb 91 jmp 0xffffffa2 11: bb ed ff ff ff mov $0xffffffed,%ebx 16: e9 07 f3 ff ff jmp 0xfffff322 1b: e8 97 f5 c5 fc call 0xfcc5f5b7 20: 48 8d 3d 50 45 f0 05 lea 0x5f04550(%rip),%rdi # 0x5f04577 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 e9 f2 ff ff jmp 0xfffff322 39: e8 79 f5 c5 fc call 0xfcc5f5b7 3e: 0f .byte 0xf 3f: 1f (bad)