------------[ cut here ]------------ usb 5-1: BOGUS control dir, pipe 80001d80 doesn't match bRequestType c0 WARNING: drivers/usb/core/urb.c:411 at usb_submit_urb+0x1573/0x1910 drivers/usb/core/urb.c:411, CPU#1: syz.1.2235/11166 Modules linked in: CPU: 1 UID: 0 PID: 11166 Comm: syz.1.2235 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+0x157e/0x1910 drivers/usb/core/urb.c:411 Code: d2 74 5d 48 89 54 24 40 e8 ff f2 b8 fa 4c 89 ef e8 57 ab de fe 48 89 c6 48 8d 3d 3d 90 97 09 48 8b 54 24 40 45 89 f8 44 89 f1 <67> 48 0f b9 3a e9 c7 ed ff ff e8 d3 f2 b8 fa 89 ee bf ff 00 00 00 RSP: 0018:ffffc90004bcf630 EFLAGS: 00010287 RAX: ffffffff8c80f520 RBX: ffff888013ad2a00 RCX: 0000000080001d80 RDX: ffff888012f939a0 RSI: ffffffff8c80f520 RDI: ffffffff90e6e1f0 RBP: ffff888026b33058 R08: 00000000000000c0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880299e84c0 R13: ffff888026b330b0 R14: 0000000080001d80 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff888097240000(0063) knlGS:00000000f547db40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000000c3a3f1d CR3: 000000004bf7a000 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+0x5d9/0x17f0 drivers/i2c/i2c-core-base.c:2261 i2c_smbus_xfer_emulated+0x22a/0x10e0 drivers/i2c/i2c-core-smbus.c:470 __i2c_smbus_xfer+0x5b7/0x1080 drivers/i2c/i2c-core-smbus.c:608 i2c_smbus_xfer+0x185/0x3c0 drivers/i2c/i2c-core-smbus.c:546 i2cdev_ioctl_smbus+0x4b9/0xac0 drivers/i2c/i2c-dev.c:356 compat_i2cdev_ioctl+0x439/0x540 drivers/i2c/i2c-dev.c:584 __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:83 [inline] __do_fast_syscall_32+0xe3/0x8c0 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: 0023:0xf708ef6c Code: d2 74 05 c1 e8 0c 89 02 8b 5d fc 31 c0 c9 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 2e 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 58 b8 RSP: 002b:00000000f547d50c EFLAGS: 00000292 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000720 RDX: 00000000800000c0 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: d2 74 5d 48 shlb %cl,0x48(%rbp,%rbx,2) 4: 89 54 24 40 mov %edx,0x40(%rsp) 8: e8 ff f2 b8 fa call 0xfab8f30c d: 4c 89 ef mov %r13,%rdi 10: e8 57 ab de fe call 0xfedeab6c 15: 48 89 c6 mov %rax,%rsi 18: 48 8d 3d 3d 90 97 09 lea 0x997903d(%rip),%rdi # 0x997905c 1f: 48 8b 54 24 40 mov 0x40(%rsp),%rdx 24: 45 89 f8 mov %r15d,%r8d 27: 44 89 f1 mov %r14d,%ecx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e9 c7 ed ff ff jmp 0xffffedfb 34: e8 d3 f2 b8 fa call 0xfab8f30c 39: 89 ee mov %ebp,%esi 3b: bf ff 00 00 00 mov $0xff,%edi