Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
CPU: 0 UID: 0 PID: 5931 Comm: syz.3.9 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:fsnotify_parent include/linux/fsnotify.h:81 [inline]
RIP: 0010:fsnotify_path include/linux/fsnotify.h:113 [inline]
RIP: 0010:fsnotify_file include/linux/fsnotify.h:127 [inline]
RIP: 0010:fsnotify_close include/linux/fsnotify.h:457 [inline]
RIP: 0010:__fput+0x1b5/0xa70 fs/file_table.c:454
Code: fc ff df 80 3c 08 00 74 08 4c 89 e7 e8 b4 0d ee ff 4d 8b 34 24 49 8d 6e 28 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 8d 0d ee ff 41 bc 60 06 00 00 4c 03
RSP: 0018:ffffc900045dfd90 EFLAGS: 00010206
RAX: 0000000000000005 RBX: ffff888030955340 RCX: dffffc0000000000
RDX: ffff88802ee73d00 RSI: 0000000004000000 RDI: 0000000002000000
RBP: 0000000000000028 R08: ffffc900045dfe47 R09: 1ffff920008bbfc8
R10: dffffc0000000000 R11: fffff520008bbfc9 R12: ffff888031cc5c50
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888143ee1480
FS:  00007f56963f76c0(0000) GS:ffff888125a03000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f69c9bbfa90 CR3: 000000007db4c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 fput_close_sync+0x113/0x220 fs/file_table.c:573
 __do_sys_close fs/open.c:1573 [inline]
 __se_sys_close fs/open.c:1558 [inline]
 __x64_sys_close+0x7f/0x110 fs/open.c:1558
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f569558f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f56963f7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007f56957e5fa0 RCX: 00007f569558f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f5695613f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f56957e6038 R14: 00007f56957e5fa0 R15: 00007ffde63c3658
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:fsnotify_parent include/linux/fsnotify.h:81 [inline]
RIP: 0010:fsnotify_path include/linux/fsnotify.h:113 [inline]
RIP: 0010:fsnotify_file include/linux/fsnotify.h:127 [inline]
RIP: 0010:fsnotify_close include/linux/fsnotify.h:457 [inline]
RIP: 0010:__fput+0x1b5/0xa70 fs/file_table.c:454
Code: fc ff df 80 3c 08 00 74 08 4c 89 e7 e8 b4 0d ee ff 4d 8b 34 24 49 8d 6e 28 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 ef e8 8d 0d ee ff 41 bc 60 06 00 00 4c 03
RSP: 0018:ffffc900045dfd90 EFLAGS: 00010206
RAX: 0000000000000005 RBX: ffff888030955340 RCX: dffffc0000000000
RDX: ffff88802ee73d00 RSI: 0000000004000000 RDI: 0000000002000000
RBP: 0000000000000028 R08: ffffc900045dfe47 R09: 1ffff920008bbfc8
R10: dffffc0000000000 R11: fffff520008bbfc9 R12: ffff888031cc5c50
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888143ee1480
FS:  00007f56963f76c0(0000) GS:ffff888125b03000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f69c9bb7f98 CR3: 000000007db4c000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	df 80 3c 08 00 74    	filds  0x7400083c(%rax)
   6:	08 4c 89 e7          	or     %cl,-0x19(%rcx,%rcx,4)
   a:	e8 b4 0d ee ff       	call   0xffee0dc3
   f:	4d 8b 34 24          	mov    (%r12),%r14
  13:	49 8d 6e 28          	lea    0x28(%r14),%rbp
  17:	48 89 e8             	mov    %rbp,%rax
  1a:	48 c1 e8 03          	shr    $0x3,%rax
  1e:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  25:	fc ff df
* 28:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2c:	74 08                	je     0x36
  2e:	48 89 ef             	mov    %rbp,%rdi
  31:	e8 8d 0d ee ff       	call   0xffee0dc3
  36:	41 bc 60 06 00 00    	mov    $0x660,%r12d
  3c:	4c                   	rex.WR
  3d:	03                   	.byte 0x3