------------[ cut here ]------------ usb 5-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0 WARNING: drivers/usb/core/urb.c:414 at usb_submit_urb+0x105c/0x18d0 drivers/usb/core/urb.c:412, CPU#0: syz.0.0/5337 Modules linked in: CPU: 0 UID: 0 PID: 5337 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:usb_submit_urb+0x111c/0x18d0 drivers/usb/core/urb.c:412 Code: b8 00 00 00 00 00 fc ff df 0f b6 44 05 00 84 c0 0f 85 a7 05 00 00 45 0f b6 45 00 48 8b 3c 24 48 8b 74 24 20 4c 89 fa 44 89 f1 <67> 48 0f b9 3a 49 bf 00 00 00 00 00 fc ff df e9 b7 f2 ff ff 89 e9 RSP: 0018:ffffc9000d94f680 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880114e1300 RCX: 0000000080000280 RDX: ffff888043bedce0 RSI: ffffffff8c141b40 RDI: ffffffff8f8f0680 RBP: 1ffff11000077910 R08: 00000000000000c0 R09: 0000000000000000 R10: ffffc9000d94f780 R11: fffff52001b29efc R12: ffff88801162c100 R13: ffff8880003bc880 R14: 0000000080000280 R15: ffff888043bedce0 FS: 00007f519a3e56c0(0000) GS:ffff88808d416000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f519a3e3fb8 CR3: 00000000429c6000 CR4: 0000000000352ef0 Call Trace: usb_start_wait_urb+0x115/0x4f0 drivers/usb/core/message.c:59 usb_internal_control_msg drivers/usb/core/message.c:103 [inline] usb_control_msg+0x232/0x3e0 drivers/usb/core/message.c:154 dtv5100_i2c_msg+0x231/0x2f0 drivers/media/usb/dvb-usb/dtv5100.c:65 dtv5100_i2c_xfer+0x1a4/0x3c0 drivers/media/usb/dvb-usb/dtv5100.c:91 __i2c_transfer+0x79a/0x1f00 drivers/i2c/i2c-core-base.c:-1 i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:470 [inline] __i2c_smbus_xfer+0xf5d/0x1e20 drivers/i2c/i2c-core-smbus.c:608 i2c_smbus_xfer+0x1f4/0x310 drivers/i2c/i2c-core-smbus.c:546 i2cdev_ioctl_smbus+0x3db/0x750 drivers/i2c/i2c-dev.c:389 i2cdev_ioctl+0x5d3/0x820 drivers/i2c/i2c-dev.c:478 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f519958f7c9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f519a3e5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f51997e6090 RCX: 00007f519958f7c9 RDX: 00002000000001c0 RSI: 0000000000000720 RDI: 0000000000000007 RBP: 00007f5199613f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f51997e6128 R14: 00007f51997e6090 R15: 00007ffe46fce858 ---------------- Code disassembly (best guess): 0: b8 00 00 00 00 mov $0x0,%eax 5: 00 fc add %bh,%ah 7: ff (bad) 8: df 0f fisttps (%rdi) a: b6 44 mov $0x44,%dh c: 05 00 84 c0 0f add $0xfc08400,%eax 11: 85 a7 05 00 00 45 test %esp,0x45000005(%rdi) 17: 0f b6 45 00 movzbl 0x0(%rbp),%eax 1b: 48 8b 3c 24 mov (%rsp),%rdi 1f: 48 8b 74 24 20 mov 0x20(%rsp),%rsi 24: 4c 89 fa mov %r15,%rdx 27: 44 89 f1 mov %r14d,%ecx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 36: fc ff df 39: e9 b7 f2 ff ff jmp 0xfffff2f5 3e: 89 e9 mov %ebp,%ecx