BUG: unable to handle kernel paging request at 000000360000001b
PGD 18e837067 P4D 18e837067 PUD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9036 Comm: syz-executor3 Not tainted 4.20.0-rc1-next-20181107+ #107
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kasan: CONFIG_KASAN_INLINE enabled
RIP: 0010:0x360000001b
Code: Bad RIP value.
RSP: 0018:ffff88017d5deeb8 EFLAGS: 00010293
RAX: ffff880187d72080 RBX: 000000360000001b RCX: ffffffff81ed555d
RDX: 0000000000000000 RSI: ffffffff81ed5c9e RDI: ffff88017d5def38
RBP: ffff88017d5df0a0 R08: ffff880187d72080 R09: ffffed003b5c5b67
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801d7fdf340
R13: ffff88017d5def38 R14: 1ffff1002fabbddb R15: dffffc0000000000
kasan: GPF could be caused by NULL-ptr deref or user memory access
FS:  00007fa259581700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000035fffffff1 CR3: 000000018e838000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 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
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x1ad1/0x26d0 kernel/exit.c:867
 do_group_exit+0x177/0x440 kernel/exit.c:970
 get_signal+0x8a8/0x1970 kernel/signal.c:2517
 do_signal+0x9c/0x21c0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 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: 0033:0x457569
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fa259580c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: 0000000000000005 RBX: 0000000000000004 RCX: 0000000000457569
RDX: 0000000000000000 RSI: 0000000020000240 RDI: ffffffffffffff9c
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa2595816d4
R13: 00000000004c2ef4 R14: 00000000004d48d0 R15: 00000000ffffffff
Modules linked in:
CR2: 000000360000001b
---[ end trace deba1a57bfc051da ]---
general protection fault: 0000 [#2] PREEMPT SMP KASAN
CPU: 1 PID: 9051 Comm: syz-executor3 Tainted: G      D           4.20.0-rc1-next-20181107+ #107
RIP: 0010:0x360000001b
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Code: Bad RIP value.
RIP: 0010:__x86_indirect_thunk_rbx+0x10/0x20 arch/x86/lib/retpoline.S:33
RSP: 0018:ffff88017d5deeb8 EFLAGS: 00010293
Code: 90 0f ae e8 eb f9 48 89 04 24 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 1c 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3
RAX: ffff880187d72080 RBX: 000000360000001b RCX: ffffffff81ed555d
RSP: 0018:ffff880187b96f38 EFLAGS: 00010293
RDX: 0000000000000000 RSI: ffffffff81ed5c9e RDI: ffff88017d5def38
RAX: ffff880187fc40c0 RBX: 894cdffffc000000 RCX: ffffffff81ed555d
RBP: ffff88017d5df0a0 R08: ffff880187d72080 R09: ffffed003b5c5b67
RDX: 0000000000000000 RSI: ffffffff81ed5c9e RDI: ffff880187b96fc0
RBP: ffff880187b97128 R08: ffff880187fc40c0 R09: fffffbfff1322588
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801d7fdf340
R10: fffffbfff1322588 R11: ffffffff89912c43 R12: ffff8801d3587a40
R13: ffff88017d5def38 R14: 1ffff1002fabbddb R15: dffffc0000000000
R13: ffff880187b96fc0 R14: 1ffff10030f72dec R15: dffffc0000000000
FS:  00007fa259581700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
FS:  00007fa259581700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000035fffffff1 CR3: 000000018e838000 CR4: 00000000001406f0
CR2: 0000001b2c024000 CR3: 00000001c7fda000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400