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: 12021 Comm: syz.6.1782 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:ffffc90003bbfbd0 EFLAGS: 00010206
RAX: 0000000000000005 RBX: ffff8880311061c0 RCX: dffffc0000000000
RDX: ffff88802cb93d00 RSI: 0000000004000000 RDI: 0000000002000000
RBP: 0000000000000028 R08: ffffffff8fc2d477 R09: 1ffffffff1f85a8e
R10: dffffc0000000000 R11: ffffffff823a4220 R12: ffff88805c6c5c50
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88807bbc6c40
FS:  0000000000000000(0000) GS:ffff888125a03000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd596db3f98 CR3: 000000000e13a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000002000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 task_work_run+0x1d4/0x260 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6c5/0x2310 kernel/exit.c:971
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1121
 x64_sys_call+0x2210/0x2210 arch/x86/include/generated/asm/syscalls_64.h:232
 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: 0033:0x7fd598b8f749
Code: Unable to access opcode bytes at 0x7fd598b8f71f.
RSP: 002b:00007fff320613b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007fd598b8f749
RDX: 00007fd598b46c47 RSI: 0000000000000000 RDI: 000000000000000b
RBP: 0000000000000003 R08: 00007fff32061857 R09: 000000000000000b
R10: 00007fd598de5fa0 R11: 0000000000000246 R12: 00007fd598de627c
R13: 00007fd598de6270 R14: 00000000000010b4 R15: 0000000000000002
 </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:ffffc90003bbfbd0 EFLAGS: 00010206
RAX: 0000000000000005 RBX: ffff8880311061c0 RCX: dffffc0000000000
RDX: ffff88802cb93d00 RSI: 0000000004000000 RDI: 0000000002000000
RBP: 0000000000000028 R08: ffffffff8fc2d477 R09: 1ffffffff1f85a8e
R10: dffffc0000000000 R11: ffffffff823a4220 R12: ffff88805c6c5c50
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88807bbc6c40
FS:  0000000000000000(0000) GS:ffff888125a03000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3f9ea6 CR3: 0000000032c6a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000002000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
----------------
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