pvrusb2: Invalid read control endpoint ------------[ cut here ]------------ URB ffff888034253100 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/2490 Modules linked in: CPU: 1 UID: 0 PID: 2490 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 5d df c8 fa 48 8d 3d 06 b9 85 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:ffffc9000e46ecf8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888034253100 RCX: ffffffff881616a1 RDX: ffff88802e824980 RSI: ffff888034253100 RDI: ffffffff90c3d510 RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 00000000c0008200 R14: ffff888035897000 R15: ffff888029431628 FS: 0000000000000000(0000) GS:ffff8880d66d9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f16c26dc3a0 CR3: 000000003399f000 CR4: 0000000000352ef0 Call Trace: pvr2_send_request_ex+0x7ed/0x1cb0 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3676 pvr2_send_request+0x3a/0x50 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3819 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+0x5e1/0x1610 drivers/i2c/i2c-core-base.c:2261 i2c_smbus_xfer_emulated+0x22a/0x10e0 drivers/i2c/i2c-core-smbus.c:470 __i2c_smbus_xfer+0x5b7/0xf10 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+0x1df/0x340 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+0x3b3/0x730 kernel/kthread.c:463 ret_from_fork+0x754/0xaf0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 ---------------- 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 5d df c8 fa call 0xfac8df7d 20: 48 8d 3d 06 b9 85 09 lea 0x985b906(%rip),%rdi # 0x985b92d 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)