Oops: general protection fault, probably for non-canonical address 0xdffffc01849b8fec: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: probably user-memory-access in range [0x0000000c24dc7f60-0x0000000c24dc7f67]
CPU: 1 PID: 7378 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240418-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:hook_inode_free_security+0x5b/0xb0 security/landlock/fs.c:1203
Code: 8a fd 48 8b 1b 48 c7 c0 e4 9e d9 8d 48 c1 e8 03 42 0f b6 04 30 84 c0 75 3e 48 63 05 93 9d 68 09 48 01 c3 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 b6 ac 8a fd 48 83 3b 00 75 0d e8
RSP: 0018:ffffc9000a1d79a8 EFLAGS: 00010202
RAX: 00000001849b8fec RBX: 0000000c24dc7f60 RCX: ffff88806679bc00
RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff88806aca96b0
RBP: ffffffff8c0200c0 R08: ffffffff8213ecc5 R09: 1ffff1100d5952e7
R10: dffffc0000000000 R11: ffffffff84710100 R12: dffffc0000000000
R13: 1ffff1100d59530b R14: dffffc0000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d92a000 CR3: 000000007e630000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 security_inode_free+0x48/0xd0 security/security.c:1613
 __destroy_inode+0x2d9/0x650 fs/inode.c:286
 destroy_inode fs/inode.c:309 [inline]
 evict+0x521/0x630 fs/inode.c:682
 dispose_list fs/inode.c:700 [inline]
 evict_inodes+0x5f9/0x690 fs/inode.c:750
 generic_shutdown_super+0x9d/0x2d0 fs/super.c:627
 kill_block_super+0x44/0x90 fs/super.c:1676
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267
 task_work_run+0x24f/0x310 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa1b/0x27e0 kernel/exit.c:877
 do_group_exit+0x207/0x2c0 kernel/exit.c:1026
 __do_sys_exit_group kernel/exit.c:1037 [inline]
 __se_sys_exit_group kernel/exit.c:1035 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1035
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2a73e7dea9
Code: Unable to access opcode bytes at 0x7f2a73e7de7f.
RSP: 002b:00007ffdb9764778 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f2a73ec93de RCX: 00007f2a73e7dea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000074 R08: 00007ffdb9762515 R09: 00007ffdb9765a30
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdb9765a30
R13: 00007f2a73ec93b9 R14: 000000000003a49c R15: 000000000000001c
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hook_inode_free_security+0x5b/0xb0 security/landlock/fs.c:1203
Code: 8a fd 48 8b 1b 48 c7 c0 e4 9e d9 8d 48 c1 e8 03 42 0f b6 04 30 84 c0 75 3e 48 63 05 93 9d 68 09 48 01 c3 48 89 d8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 df e8 b6 ac 8a fd 48 83 3b 00 75 0d e8
RSP: 0018:ffffc9000a1d79a8 EFLAGS: 00010202
RAX: 00000001849b8fec RBX: 0000000c24dc7f60 RCX: ffff88806679bc00
RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff88806aca96b0
RBP: ffffffff8c0200c0 R08: ffffffff8213ecc5 R09: 1ffff1100d5952e7
R10: dffffc0000000000 R11: ffffffff84710100 R12: dffffc0000000000
R13: 1ffff1100d59530b R14: dffffc0000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7bd33bd000 CR3: 000000007e630000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	8a fd                	mov    %ch,%bh
   2:	48 8b 1b             	mov    (%rbx),%rbx
   5:	48 c7 c0 e4 9e d9 8d 	mov    $0xffffffff8dd99ee4,%rax
   c:	48 c1 e8 03          	shr    $0x3,%rax
  10:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax
  15:	84 c0                	test   %al,%al
  17:	75 3e                	jne    0x57
  19:	48 63 05 93 9d 68 09 	movslq 0x9689d93(%rip),%rax        # 0x9689db3
  20:	48 01 c3             	add    %rax,%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 b6 ac 8a fd       	call   0xfd8aacef
  39:	48 83 3b 00          	cmpq   $0x0,(%rbx)
  3d:	75 0d                	jne    0x4c
  3f:	e8                   	.byte 0xe8