------------[ cut here ]------------ usb 5-1: BOGUS control dir, pipe 80006880 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#3: syz.9.8727/1754 Modules linked in: CPU: 3 UID: 0 PID: 1754 Comm: syz.9.8727 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 d5 8b fa 4c 89 e7 e8 5b 10 dc fe 48 89 c6 48 8d 3d 31 75 b2 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 d5 8b fa 89 ee bf ff 00 00 00 RSP: 0000:ffffc90020747740 EFLAGS: 00010283 RAX: ffffffff8ca5d6a0 RBX: ffff88806edde200 RCX: 0000000080006880 RDX: ffff88804c31e0e0 RSI: ffffffff8ca5d6a0 RDI: ffffffff912fcc40 RBP: ffff888026f1e058 R08: 00000000000000c0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888026f1e0b0 R13: ffff8880703b5360 R14: ffff8880703b5366 R15: ffff8880703b5367 FS: 0000000000000000(0000) GS:ffff888096ef5000(0063) knlGS:00000000f54a6b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f515875e CR3: 000000005fd3a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000000f010e DR6: 00000000ffff0ff0 DR7: 0000000000000400 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+0x5d9/0x1740 drivers/i2c/i2c-core-base.c:2287 i2c_transfer+0x15f/0x380 drivers/i2c/i2c-core-base.c:2343 i2c_transfer_buffer_flags+0x10c/0x190 drivers/i2c/i2c-core-base.c:2371 i2c_master_send include/linux/i2c.h:109 [inline] i2cdev_write+0x11e/0x240 drivers/i2c/i2c-dev.c:183 do_loop_readv_writev fs/read_write.c:851 [inline] do_loop_readv_writev fs/read_write.c:836 [inline] vfs_writev+0x5ed/0xdd0 fs/read_write.c:1060 do_pwritev+0x1ac/0x270 fs/read_write.c:1154 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0xe7/0x970 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7fe6fec Code: Unable to access opcode bytes at 0xf7fe6fc2. RSP: 002b:00000000f54a650c EFLAGS: 00000292 ORIG_RAX: 000000000000014e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000080000500 RDX: 0000000000000001 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 d5 8b fa call 0xfa8bd56d a: 4c 89 e7 mov %r12,%rdi d: e8 5b 10 dc fe call 0xfedc106d 12: 48 89 c6 mov %rax,%rsi 15: 48 8d 3d 31 75 b2 09 lea 0x9b27531(%rip),%rdi # 0x9b2754d 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 d5 8b fa call 0xfa8bd56d 39: 89 ee mov %ebp,%esi 3b: bf ff 00 00 00 mov $0xff,%edi