hid-generic 0000:0000:0000.0002: item fetching failed at offset 0/1
hid-generic: probe of 0000:0000:0000.0002 failed with error -22
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
audit: type=1804 audit(1577688943.625:104): pid=11280 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.2" name="/root/syzkaller-testdir219779840/syzkaller.9ThvyC/85/bus" dev="sda1" ino=17128 res=1
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 7062 Comm: syz-executor.0 Not tainted 4.14.160-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880864a6100 task.stack: ffff8880864a8000
RIP: 0010:kobject_uevent_env+0xa1/0xc23 lib/kobject_uevent.c:350
RSP: 0018:ffff8880864afb60 EFLAGS: 00010286
RAX: dffffc0000000000 RBX: 0000000000000002 RCX: 1ffff11010c94d2e
RDX: 0000000000000014 RSI: 0000000000000002 RDI: ffffffff8770dd50
RBP: ffff8880864afbe0 R08: ffff8880864a6100 R09: 0000000000000003
R10: 0000000000000000 R11: ffff8880864a6100 R12: 00000000000000a0
R13: 0000000000000002 R14: ffff8880960b16c0 R15: 00000000000000a0
audit: type=1804 audit(1577688943.625:105): pid=11257 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir219779840/syzkaller.9ThvyC/85/bus" dev="sda1" ino=17128 res=1
FS:  00000000014ad940(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200f107f CR3: 0000000097306000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_clr_fd+0x4a7/0xae0 drivers/block/loop.c:1059
 __lo_release drivers/block/loop.c:1650 [inline]
 lo_release+0x112/0x1b0 drivers/block/loop.c:1668
 __blkdev_put+0x434/0x7f0 fs/block_dev.c:1791
 blkdev_put+0x88/0x510 fs/block_dev.c:1856
 kill_block_super+0xbd/0xf0 fs/super.c:1164
 deactivate_locked_super+0x74/0xe0 fs/super.c:319
 deactivate_super fs/super.c:350 [inline]
 deactivate_super+0x85/0xa0 fs/super.c:346
 cleanup_mnt+0xb2/0x150 fs/namespace.c:1183
 __cleanup_mnt+0x16/0x20 fs/namespace.c:1190
 task_work_run+0x114/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1da/0x220 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4bc/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45d347
RSP: 002b:00007ffdeb6ff7e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000045d347
RDX: 0000000000403720 RSI: 0000000000000002 RDI: 00007ffdeb6ff890
RBP: 00000000000001de R08: 0000000000000000 R09: 000000000000000b
R10: 0000000000000005 R11: 0000000000000206 R12: 00007ffdeb700920
R13: 00000000014ae940 R14: 0000000000000000 R15: 00007ffdeb700920
Code: fa 83 e2 07 38 d0 7f 09 84 c0 74 05 e8 8f da 28 fb 41 80 4f 3c 08 e8 c5 4c fe fa 4c 89 fa b8 ff ff 37 00 48 c1 ea 03 48 c1 e0 2a <80> 3c 02 00 74 08 4c 89 ff e8 27 da 28 fb 49 8b 37 48 c7 c1 40 
RIP: kobject_uevent_env+0xa1/0xc23 lib/kobject_uevent.c:350 RSP: ffff8880864afb60
audit: type=1804 audit(1577688943.625:106): pid=11280 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir219779840/syzkaller.9ThvyC/85/bus" dev="sda1" ino=17128 res=1
---[ end trace 435bfee6402a9334 ]---
kobject: 'tunl0' (ffff888046b35330): kobject_add_internal: parent: 'net', set: 'devices'