kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 2 PID: 12689 Comm: syz-executor2 Not tainted 4.14.0-rc8-next-20171110+ #12
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
task: ffff880027f980c0 task.stack: ffff880020c78000
RIP: 0010:usb_find_alt_setting+0x38/0x310 drivers/usb/core/usb.c:231
RSP: 0018:ffff880020c7f610 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff83bf4473
RDX: 0000000000000000 RSI: ffffc90000bbc000 RDI: 0000000000000004
RBP: ffff880020c7f650 R08: ffffed000418fee2 R09: ffffed000418fee2
R10: 0000000000000003 R11: ffffed000418fee1 R12: ffff88007c1d2c40
R13: 00000000000000fd R14: 00000000000007fd R15: 0000000000000000
FS:  00007fdbd461b700(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f885a3dedb8 CR3: 0000000025828000 CR4: 00000000000006e0
DR0: 0000000020000000 DR1: 0000000020001020 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 check_ctrlrecip+0xf3/0x290 drivers/usb/core/devio.c:831
 proc_control+0x13f/0xe30 drivers/usb/core/devio.c:1078
 usbdev_do_ioctl+0x2097/0x3670 drivers/usb/core/devio.c:2396
 usbdev_ioctl+0x25/0x30 drivers/usb/core/devio.c:2553
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:686
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x447c99
RSP: 002b:00007fdbd461abd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fdbd461b6cc RCX: 0000000000447c99
RDX: 000000002003dffa RSI: 00000000c0185500 RDI: 0000000000000016
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000086a0 R14: 00000000006ec740 R15: 00007fdbd461b700
Code: 89 d5 53 48 89 fb 48 83 ec 18 48 89 7d c8 89 75 d0 e8 2d 3c b0 fd 48 8d 7b 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 a1 02 00 
RIP: usb_find_alt_setting+0x38/0x310 drivers/usb/core/usb.c:231 RSP: ffff880020c7f610
---[ end trace 8f9af110000c3d4f ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
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Kernel Offset: disabled
Rebooting in 86400 seconds..