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: 3 PID: 24043 Comm: syz-executor0 Not tainted 4.14.0-rc8-next-20171109+ #11 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 task: ffff8800679b2140 task.stack: ffff8800674a8000 RIP: 0010:__lock_acquire+0x227/0x4770 kernel/locking/lockdep.c:3388 RSP: 0018:ffff8800674aeb68 EFLAGS: 00010006 RAX: 0004800700000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 1ffff100059cce70 RSI: 0000000000000000 RDI: ffff88002ce67380 RBP: ffff8800674af070 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff8744dce0 R12: ffff8800679b2140 R13: 0000000000000000 R14: 0000000000000001 R15: ffff88002ce67378 FS: 00007f981c98b700(0000) GS:ffff88007fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020d6dff8 CR3: 000000002ba7b000 CR4: 00000000000026e0 DR0: 0000000020001008 DR1: 0000000020001000 DR2: 0000000000000080 DR3: 0000000000000005 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:159 destroy_async_on_interface+0x136/0x530 drivers/usb/core/devio.c:656 driver_disconnect+0xdd/0x140 drivers/usb/core/devio.c:702 usb_unbind_interface+0x229/0xb00 drivers/usb/core/driver.c:423 __device_release_driver drivers/base/dd.c:870 [inline] device_release_driver_internal+0x52a/0x600 drivers/base/dd.c:903 device_release_driver+0x19/0x20 drivers/base/dd.c:928 usb_driver_release_interface+0x138/0x160 drivers/usb/core/driver.c:604 proc_disconnect_claim+0x221/0x380 drivers/usb/core/devio.c:2269 usbdev_do_ioctl+0x16a5/0x3670 drivers/usb/core/devio.c:2511 usbdev_ioctl+0x25/0x30 drivers/usb/core/devio.c:2539 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:00007f981c98abd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f981c98b6cc RCX: 0000000000447c99 RDX: 000000002021c000 RSI: 000000008108551b RDI: 0000000000000013 RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000008670 R14: 00000000006ec710 R15: 00007f981c98b700 Code: ff ff e8 6d 3f ff ff 48 85 c0 44 8b 95 a8 fb ff ff 8b 8d a0 fb ff ff 44 8b 8d 98 fb ff ff 4c 8b 9d 90 fb ff ff 0f 84 23 0b 00 00 ff 80 38 01 00 00 49 8d bc 24 80 08 00 00 48 ba 00 00 00 00 RIP: __lock_acquire+0x227/0x4770 kernel/locking/lockdep.c:3388 RSP: ffff8800674aeb68 ---[ end trace 6cb2e55d610695ed ]---