RDX: ffffffffffffffff RSI: 0000000000000402 RDI: 0000000000000016
RBP: 0000000000000770 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 00000000004b7478
R13: 0000000000000017 R14: 0000000000000016 R15: 0000000000000402
------------[ 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: 0 PID: 21500 Comm: syz-executor6 Not tainted 4.13.0+ #80
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c86fa240 task.stack: ffff8801c08d8000
RIP: 0010:dnotify_free_mark+0x51/0x60 fs/notify/dnotify/dnotify.c:131
RSP: 0018:ffff8801c08df9d8 EFLAGS: 00010246
RAX: 0000000000010000 RBX: ffff88019f584ed8 RCX: ffffc90003ffd000
RDX: 0000000000010000 RSI: ffffffff81bc4ec1 RDI: ffff88019f584f58
RBP: ffff8801c08df9e0 R08: ffff8801c08df430 R09: 0000000000000000
R10: ffffffff870a8e40 R11: 0000000000000000 R12: ffff88019f584ed8
R13: ffffffff84f23c60 R14: ffff8801c08dfb18 R15: 0000000000000000
FS:  00007f84fb441700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004da584 CR3: 00000001c74a3000 CR4: 00000000001426f0
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
 do_syscall_64+0x26c/0x8c0 arch/x86/entry/common.c:287
 entry_SYSCALL64_slow_path+0x25/0x25
RIP: 0033:0x451e59
RSP: 002b:00007f84fb440c08 EFLAGS: 00000216 ORIG_RAX: 0000000000000048
RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 0000000000451e59
RDX: ffffffffffffffff RSI: 0000000000000402 RDI: 0000000000000016
RBP: 0000000000000770 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000216 R12: 00000000004b7478
R13: 0000000000000017 R14: 0000000000000016 R15: 0000000000000402
Code: 3c 02 00 75 28 48 83 bb 80 00 00 00 00 75 17 e8 a6 82 b1 ff 48 8b 3d 3f c6 60 04 48 89 de e8 37 f9 e5 ff 5b 5d c3 e8 8f 82 b1 ff <0f> 0b e8 a8 34 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: ffff8801c08df9d8
---[ end trace 443194c7b5eb264e ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..