------------[ cut here ]------------ usb 9-1: BOGUS control dir, pipe 80000e80 doesn't match bRequestType c0 WARNING: drivers/usb/core/urb.c:412 at usb_submit_urb+0x153e/0x1970 drivers/usb/core/urb.c:412, CPU#1: syz.3.1697/10751 Modules linked in: CPU: 1 UID: 0 PID: 10751 Comm: syz.3.1697 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~bpo12+1 04/01/2014 RIP: 0010:usb_submit_urb+0x1549/0x1970 drivers/usb/core/urb.c:412 Code: 30 48 89 7c 24 38 e8 26 1d aa fa 48 8b 7c 24 38 e8 dc 7f d0 fe 48 89 c6 48 8d 3d 92 a0 80 09 48 8b 54 24 30 45 89 e8 44 89 f9 <67> 48 0f b9 3a e9 fd ed ff ff 48 89 7c 24 30 e8 f3 1c aa fa 48 8b RSP: 0018:ffffc900079b7950 EFLAGS: 00010283 RAX: ffffffff8c5456a0 RBX: ffff8880267acf00 RCX: 0000000080000e80 RDX: ffff888073778240 RSI: ffffffff8c5456a0 RDI: ffffffff9094e540 RBP: ffff888025a8a058 R08: 00000000000000c0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88806c210780 R13: 00000000000000c0 R14: 0000000000000001 R15: 0000000080000e80 FS: 0000000000000000(0000) GS:ffff8880977f8000(0063) knlGS:00000000f5496b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000800bd01c CR3: 000000001364a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000001 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: usb_start_wait_urb+0x104/0x4e0 drivers/usb/core/message.c:59 usb_internal_control_msg drivers/usb/core/message.c:103 [inline] usb_control_msg+0x326/0x4a0 drivers/usb/core/message.c:154 dtv5100_i2c_msg+0x1fa/0x360 drivers/media/usb/dvb-usb/dtv5100.c:65 dtv5100_i2c_xfer+0x1e0/0x420 drivers/media/usb/dvb-usb/dtv5100.c:91 __i2c_transfer+0x6b6/0x2100 drivers/i2c/i2c-core-base.c:2261 i2c_transfer drivers/i2c/i2c-core-base.c:2317 [inline] i2c_transfer+0x1da/0x380 drivers/i2c/i2c-core-base.c:2293 i2cdev_ioctl_rdwr+0x373/0x710 drivers/i2c/i2c-dev.c:306 compat_i2cdev_ioctl+0x464/0x530 drivers/i2c/i2c-dev.c:575 __do_compat_sys_ioctl fs/ioctl.c:695 [inline] __se_compat_sys_ioctl fs/ioctl.c:638 [inline] __ia32_compat_sys_ioctl+0x242/0x370 fs/ioctl.c:638 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0xe8/0x680 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7fa3579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f549655c EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000707 RDX: 0000000080000080 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 89 7c 24 38 mov %rdi,0x38(%rsp) 5: e8 26 1d aa fa call 0xfaaa1d30 a: 48 8b 7c 24 38 mov 0x38(%rsp),%rdi f: e8 dc 7f d0 fe call 0xfed07ff0 14: 48 89 c6 mov %rax,%rsi 17: 48 8d 3d 92 a0 80 09 lea 0x980a092(%rip),%rdi # 0x980a0b0 1e: 48 8b 54 24 30 mov 0x30(%rsp),%rdx 23: 45 89 e8 mov %r13d,%r8d 26: 44 89 f9 mov %r15d,%ecx * 29: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2e: e9 fd ed ff ff jmp 0xffffee30 33: 48 89 7c 24 30 mov %rdi,0x30(%rsp) 38: e8 f3 1c aa fa call 0xfaaa1d30 3d: 48 rex.W 3e: 8b .byte 0x8b