------------[ cut here ]------------ usb 8-1: BOGUS control dir, pipe 80001980 doesn't match bRequestType c0 WARNING: drivers/usb/core/urb.c:411 at usb_submit_urb+0x15ff/0x19b0 drivers/usb/core/urb.c:411, CPU#0: syz.3.2148/17718 Modules linked in: CPU: 0 UID: 0 PID: 17718 Comm: syz.3.2148 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP 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+0x160d/0x19b0 drivers/usb/core/urb.c:411 Code: 48 89 54 24 40 e8 63 4a 7e fa 4c 89 e7 e8 fb f4 da fe 48 89 c6 48 8d 3d 01 91 c5 09 44 8b 44 24 20 8b 4c 24 30 48 8b 54 24 40 <67> 48 0f b9 3a e9 28 ed ff ff e8 34 4a 7e fa 89 ee bf ff 00 00 00 RSP: 0018:ffffc90006b2f630 EFLAGS: 00010283 RAX: ffffffff8cc85e40 RBX: ffff88806bac5800 RCX: 0000000080001980 RDX: ffff88806e45fda0 RSI: ffffffff8cc85e40 RDI: ffffffff9152a880 RBP: ffff8880226ef058 R08: 00000000000000c0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880226ef0b0 R13: ffff88804ce33820 R14: ffff88804ce33826 R15: ffff88804ce33827 FS: 0000000000000000(0000) GS:ffff888096960000(0063) knlGS:00000000f54a6b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00007f2b5711fee0 CR3: 000000005cc05000 CR4: 0000000000352ef0 Call Trace: usb_start_wait_urb+0x10e/0x580 drivers/usb/core/message.c:62 usb_internal_control_msg drivers/usb/core/message.c:117 [inline] usb_control_msg+0x328/0x4b0 drivers/usb/core/message.c:167 dtv5100_i2c_msg+0x1be/0x340 drivers/media/usb/dvb-usb/dtv5100.c:65 dtv5100_i2c_xfer+0x131/0x3d0 drivers/media/usb/dvb-usb/dtv5100.c:91 __i2c_transfer+0x5d4/0x1740 drivers/i2c/i2c-core-base.c:2294 i2c_smbus_xfer_emulated+0x235/0x1110 drivers/i2c/i2c-core-smbus.c:471 __i2c_smbus_xfer+0x612/0x10f0 drivers/i2c/i2c-core-smbus.c:621 i2c_smbus_xfer+0x17e/0x3c0 drivers/i2c/i2c-core-smbus.c:547 i2cdev_ioctl_smbus+0x389/0xac0 drivers/i2c/i2c-dev.c:389 compat_i2cdev_ioctl+0x439/0x540 drivers/i2c/i2c-dev.c:585 __do_compat_sys_ioctl fs/ioctl.c:695 [inline] __se_compat_sys_ioctl fs/ioctl.c:638 [inline] __ia32_compat_sys_ioctl+0x2cf/0x360 fs/ioctl.c:638 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline] __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7fe5fec Code: Unable to access opcode bytes at 0xf7fe5fc2. RSP: 002b:00000000f54a650c EFLAGS: 00000292 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 0000000000000720 RDX: 0000000080000140 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 48 89 54 24 40 mov %rdx,0x40(%rsp) 5: e8 63 4a 7e fa call 0xfa7e4a6d a: 4c 89 e7 mov %r12,%rdi d: e8 fb f4 da fe call 0xfedaf50d 12: 48 89 c6 mov %rax,%rsi 15: 48 8d 3d 01 91 c5 09 lea 0x9c59101(%rip),%rdi # 0x9c5911d 1c: 44 8b 44 24 20 mov 0x20(%rsp),%r8d 21: 8b 4c 24 30 mov 0x30(%rsp),%ecx 25: 48 8b 54 24 40 mov 0x40(%rsp),%rdx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e9 28 ed ff ff jmp 0xffffed5c 34: e8 34 4a 7e fa call 0xfa7e4a6d 39: 89 ee mov %ebp,%esi 3b: bf ff 00 00 00 mov $0xff,%edi