R13: 000000000000001e R14: 00007f46ed1c86d4 R15: ffffffffffffffff
------------[ 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: 32386 Comm: syz-executor4 Not tainted 4.14.0-rc5+ #143
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c4914500 task.stack: ffff8801aa818000
RIP: 0010:dnotify_free_mark+0x4b/0x60 fs/notify/dnotify/dnotify.c:131
RSP: 0018:ffff8801aa81f9d8 EFLAGS: 00010212
RAX: 0000000000010000 RBX: ffff8801cf892c00 RCX: ffffc90002b5d000
RDX: 000000000000de5c RSI: ffffffff81bc4d8b RDI: ffff8801cf892c78
RBP: ffff8801aa81f9e0 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff87080aa0 R11: 0000000000000000 R12: ffff8801cf892c00
R13: ffffffff84f23f20 R14: ffff8801aa81fb18 R15: 0000000000000000
FS:  00007f46ed1c8700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004d48e4 CR3: 00000001c1cff000 CR4: 00000000001406e0
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
 do_syscall_64+0x26c/0x8d0 arch/x86/entry/common.c:287
 entry_SYSCALL64_slow_path+0x25/0x25
RIP: 0033:0x452719
RSP: 002b:00007f46ed1c7be8 EFLAGS: 00000212 ORIG_RAX: 0000000000000048
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452719
RDX: 000000000000001c RSI: 0000000000000402 RDI: 000000000000001b
RBP: 0000000000000077 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006eebc8
R13: 000000000000001e R14: 00007f46ed1c86d4 R15: ffffffffffffffff
Code: ea 03 80 3c 02 00 75 25 48 83 7b 78 00 75 17 e8 ac 70 b1 ff 48 8b 3d 95 a7 5e 04 48 89 de e8 bd fa e5 ff 5b 5d c3 e8 95 70 b1 ff <0f> 0b e8 2e 36 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: ffff8801aa81f9d8
---[ end trace e1914dd1bd34df1a ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..