------------[ cut here ]------------ usb 14-1: BOGUS control dir, pipe 80003980 doesn't match bRequestType c0 WARNING: CPU: 3 PID: 20397 at drivers/usb/core/urb.c:411 usb_submit_urb+0x13a7/0x1770 drivers/usb/core/urb.c:411 Modules linked in: CPU: 3 UID: 0 PID: 20397 Comm: syz.6.4433 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+0x13a7/0x1770 drivers/usb/core/urb.c:411 Code: e8 3e 9d c0 fa 48 8b 7c 24 40 e8 74 7d d4 fe 48 8b 54 24 30 45 89 e8 44 89 f9 48 89 c6 48 c7 c7 60 e0 2d 8c e8 fa 77 7f fa 90 <0f> 0b 90 90 e9 a0 ef ff ff e8 0b 9d c0 fa 0f b6 2d a6 34 4f 09 31 RSP: 0018:ffffc9000e5ff958 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888043bc3000 RCX: ffffc9000d592000 RDX: 0000000000080000 RSI: ffffffff81796535 RDI: 0000000000000001 RBP: ffff88801fbf8058 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880607bd2a0 R13: 00000000000000c0 R14: 0000000000000001 R15: 0000000080003980 FS: 0000000000000000(0000) GS:ffff888097f66000(0063) knlGS:00000000f5406b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000034b23ffc CR3: 000000004eff2000 CR4: 0000000000352ef0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: usb_start_wait_urb+0x104/0x4b0 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+0x1d8/0x320 drivers/media/usb/dvb-usb/dtv5100.c:60 dtv5100_i2c_xfer+0x1e0/0x420 drivers/media/usb/dvb-usb/dtv5100.c:86 __i2c_transfer+0x6b3/0x2190 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+0x7c/0x300 arch/x86/entry/syscall_32.c:306 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7f14579 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:00000000f540655c EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000707 RDX: 0000000080000040 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), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi