RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 00000000004b5e76
R13: 00007fbdd9c07b48 R14: 00000000004b5e86 R15: 0000000000000000
------------[ cut here ]------------
kernel BUG at fs/notify/dnotify/dnotify.c:131!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 6671 Comm: syz-executor6 Not tainted 4.13.0-rc6+ #47
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801b7f8a500 task.stack: ffff8801b3250000
RIP: 0010:dnotify_free_mark+0x4b/0x60 fs/notify/dnotify/dnotify.c:131
RSP: 0018:ffff8801b3257b20 EFLAGS: 00010212
RAX: 0000000000010000 RBX: ffff8801d1d61d80 RCX: ffffc900041e8000
RDX: 000000000000e798 RSI: ffffffff81ba24ab RDI: ffff8801d1d61df8
RBP: ffff8801b3257b28 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff8737e8e0 R11: 0000000000000000 R12: ffff8801d1d61d80
R13: ffffffff85be0060 R14: ffff8801b3257c60 R15: 0000000000000000
FS:  00007fbdd9c08700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020502ffc CR3: 00000001ca5c5000 CR4: 00000000001406e0
DR0: 0000000020000008 DR1: 0000000020000008 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 fsnotify_final_mark_destroy+0x7d/0xc0 fs/notify/mark.c:202
 fsnotify_put_mark+0x469/0x730 fs/notify/mark.c:215
 fcntl_dirnotify+0xa12/0xb90 fs/notify/dnotify/dnotify.c:371
 do_fcntl+0x9e0/0x1050 fs/fcntl.c:412
 SYSC_fcntl fs/fcntl.c:462 [inline]
 SyS_fcntl+0xd6/0x110 fs/fcntl.c:447
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x4512e9
RSP: 002b:00007fbdd9c07c08 EFLAGS: 00000216 ORIG_RAX: 0000000000000048
RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 00000000004512e9
RDX: 000000000000001a RSI: 0000000000000402 RDI: 000000000000001a
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 00000000004b5e76
R13: 00007fbdd9c07b48 R14: 00000000004b5e86 R15: 0000000000000000
Code: ea 03 80 3c 02 00 75 25 48 83 7b 78 00 75 17 e8 8c d4 b3 ff 48 8b 3d 95 7d 64 04 48 89 de e8 1d 5c e6 ff 5b 5d c3 e8 75 d4 b3 ff <0f> 0b e8 9e 97 e6 ff eb d4 66 90 66 2e 0f 1f 84 00 00 00 00 00 
RIP: dnotify_free_mark+0x4b/0x60 fs/notify/dnotify/dnotify.c:131 RSP: ffff8801b3257b20
---[ end trace 6fc4b1b3c4f88060 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..