RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 18623 at security/landlock/domain.h:133 landlock_free_hierarchy_details security/landlock/domain.h:133 [inline]
WARNING: CPU: 0 PID: 18623 at security/landlock/domain.h:133 landlock_put_hierarchy security/landlock/domain.h:168 [inline]
WARNING: CPU: 0 PID: 18623 at security/landlock/domain.h:133 free_ruleset+0x1f3/0x250 security/landlock/ruleset.c:490
Modules linked in:
CPU: 0 UID: 0 PID: 18623 Comm: syz.0.3661 Not tainted 6.15.0-rc2-syzkaller-00488-g6fea5fabd332 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:landlock_free_hierarchy_details security/landlock/domain.h:133 [inline]
RIP: 0010:landlock_put_hierarchy security/landlock/domain.h:168 [inline]
RIP: 0010:free_ruleset+0x1f3/0x250 security/landlock/ruleset.c:490
Code: 89 ff e8 50 55 6c fd 49 8b 1f 4c 89 ff e8 15 b3 60 fd 48 85 db 74 36 e8 5b 1b 02 fd 49 89 df e9 34 ff ff ff e8 4e 1b 02 fd 90 <0f> 0b 90 eb c2 e8 43 1b 02 fd eb 1c bf 01 00 00 00 89 ee e8 75 1f
RSP: 0018:ffffc9000eb17da8 EFLAGS: 00010293
RAX: ffffffff84c0a1d2 RBX: 0000000000000000 RCX: ffff888020ac1e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff110063e5ce4 R08: ffffffff84c1ad6f R09: 1ffff110063e5ce1
R10: dffffc0000000000 R11: ffffed10063e5ce2 R12: ffff888031f2e720
R13: dffffc0000000000 R14: ffff8880355b7200 R15: ffff888031f2e700
FS:  0000000000000000(0000) GS:ffff888124f9a000(0063) knlGS:00000000f505db40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7fa55c0 CR3: 000000006ba94000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000000000000fffa
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 landlock_put_ruleset security/landlock/ruleset.c:498 [inline]
 __free_landlock_put_ruleset security/landlock/ruleset.h:200 [inline]
 landlock_merge_ruleset+0x6d8/0x900 security/landlock/ruleset.c:577
 __do_sys_landlock_restrict_self security/landlock/syscalls.c:549 [inline]
 __se_sys_landlock_restrict_self+0x2ce/0x7d0 security/landlock/syscalls.c:479
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x34/0x80 arch/x86/entry/syscall_32.c:331
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf706d539
Code: 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f505d55c EFLAGS: 00000206 ORIG_RAX: 00000000000001be
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   4:	10 07                	adc    %al,(%rdi)
   6:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   a:	10 08                	adc    %cl,(%rax)
   c:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  20:	00 51 52             	add    %dl,0x52(%rcx)
  23:	55                   	push   %rbp
  24:	89 e5                	mov    %esp,%ebp
  26:	0f 34                	sysenter
  28:	cd 80                	int    $0x80
* 2a:	5d                   	pop    %rbp <-- trapping instruction
  2b:	5a                   	pop    %rdx
  2c:	59                   	pop    %rcx
  2d:	c3                   	ret
  2e:	90                   	nop
  2f:	90                   	nop
  30:	90                   	nop
  31:	90                   	nop
  32:	90                   	nop
  33:	90                   	nop
  34:	90                   	nop
  35:	90                   	nop
  36:	90                   	nop
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop