kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 2571 Comm: udevd Not tainted 4.20.0-rc1-next-20181107+ #107
kasan: CONFIG_KASAN_INLINE enabled
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567
Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40
RSP: 0018:ffff8801d274f880 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d
RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb
RBP: ffff8801d274fa60 R08: ffff88018c988280 R09: ffffed003b5c5b67
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801cbdc8540
R13: ffff8801d274f8f8 R14: 1ffff1003a4e9f13 R15: dffffc0000000000
kasan: CONFIG_KASAN_INLINE enabled
FS:  00007f405b25b7a0(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000a40021 CR3: 00000001009b0000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
FAULT_FLAG_ALLOW_RETRY missing 70
kasan: GPF could be caused by NULL-ptr deref or user memory access
 locks_remove_file+0x148/0x5c0 fs/locks.c:2607
 __fput+0x2f0/0xa70 fs/file_table.c:271
 ____fput+0x15/0x20 fs/file_table.c:312
 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f405a9632b0
Code: 40 75 0b 31 c0 48 83 c4 08 e9 0c ff ff ff 48 8d 3d c5 32 08 00 e8 c0 07 02 00 83 3d 45 a3 2b 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ce 8a 01 00 48 89 04 24
RSP: 002b:00007ffd17662f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000001ec2250 RCX: 00007f405a9632b0
RDX: 00007ffd176661a0 RSI: 0000000000000002 RDI: 0000000000000007
RBP: 0000000000625500 R08: 00007ffd1779f0b0 R09: 00007ffd1779f080
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd17663020
R13: 0000000000000001 R14: 00007ffd17662fb4 R15: 0000000001ec2250
Modules linked in:
general protection fault: 0000 [#2] PREEMPT SMP KASAN
CPU: 0 PID: 4348 Comm: udevd Tainted: G      D           4.20.0-rc1-next-20181107+ #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567
Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40
RSP: 0018:ffff8801b8bf7880 EFLAGS: 00010202
---[ end trace ee0b20e255d0b1f5 ]---
RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d
RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb
RBP: ffff8801b8bf7a60 R08: ffff8801d3a10100 R09: ffffed0037da4c2a
R10: ffffed0037da4c2a R11: ffff8801bed26153 R12: ffff8801a8d3d7c0
R13: ffff8801b8bf78f8 R14: 1ffff1003717ef13 R15: dffffc0000000000
FS:  00007f405b25b7a0(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001680 CR3: 00000001c3598000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40
RSP: 0018:ffff8801d274f880 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d
 locks_remove_file+0x148/0x5c0 fs/locks.c:2607
RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb
RBP: ffff8801d274fa60 R08: ffff88018c988280 R09: ffffed003b5c5b67
 __fput+0x2f0/0xa70 fs/file_table.c:271
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801cbdc8540
R13: ffff8801d274f8f8 R14: 1ffff1003a4e9f13 R15: dffffc0000000000
 ____fput+0x15/0x20 fs/file_table.c:312
FS:  00007f405b25b7a0(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
CR2: 0000000000707158 CR3: 00000001009b0000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f405a9632b0