RDX: 0000000000000008 RSI: 0000000000000402 RDI: 0000000000000013
RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b7480
R13: 00007f01c9defb58 R14: 00000000004b7490 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: 17835 Comm: syz-executor6 Not tainted 4.14.0-rc4-next-20171009+ #33
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ca65a5c0 task.stack: ffff8801d60b0000
RIP: 0010:dnotify_free_mark+0x51/0x60 fs/notify/dnotify/dnotify.c:131
RSP: 0018:ffff8801d60b7b20 EFLAGS: 00010212
RAX: 000000000000abf8 RBX: ffff8801d7c430c8 RCX: ffffc90003be5000
RDX: 0000000000010000 RSI: ffffffff81be1891 RDI: ffff8801d7c43148
RBP: ffff8801d60b7b28 R08: ffff8801d60b7578 R09: 0000000000000000
R10: ffffffff86e71a60 R11: 0000000000000000 R12: ffff8801d7c430c8
R13: ffffffff84f26820 R14: ffff8801d60b7c60 R15: 0000000000000000
FS:  00007f01c9df0700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004d4944 CR3: 00000001cf6df000 CR4: 00000000001406e0
DR0: 0000000020000000 DR1: 0000000020000000 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+0xa24/0xba0 fs/notify/dnotify/dnotify.c:371
 do_fcntl+0x9f5/0x1060 fs/fcntl.c:412
 SYSC_fcntl fs/fcntl.c:462 [inline]
 SyS_fcntl+0xdc/0x120 fs/fcntl.c:447
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x452779
RSP: 002b:00007f01c9defbe8 EFLAGS: 00000212 ORIG_RAX: 0000000000000048
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452779
RDX: 0000000000000008 RSI: 0000000000000402 RDI: 0000000000000013
RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b7480
R13: 00007f01c9defb58 R14: 00000000004b7490 R15: 0000000000000000
Code: 3c 02 00 75 28 48 83 bb 80 00 00 00 00 75 17 e8 d6 00 b1 ff 48 8b 3d 0f d0 3b 04 48 89 de e8 27 fa e5 ff 5b 5d c3 e8 bf 00 b1 ff <0f> 0b e8 b8 35 e6 ff eb d1 66 0f 1f 44 00 00 55 48 89 e5 41 57 
RIP: dnotify_free_mark+0x51/0x60 fs/notify/dnotify/dnotify.c:131 RSP: ffff8801d60b7b20
---[ end trace 5b2e50b2669609e9 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled