Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 UID: 0 PID: 9720 Comm: syz-executor Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ocfs2_find_dir_space_id fs/ocfs2/dir.c:3407 [inline]
RIP: 0010:ocfs2_prepare_dir_for_insert+0x32ed/0x5c40 fs/ocfs2/dir.c:4271
Code: 00 00 e8 f6 97 11 fe e9 ba 06 00 00 e8 ec 97 11 fe e9 4f 01 00 00 e8 e2 97 11 fe 49 8d 7f 08 49 8d 5f 09 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 bd 23 00 00 48 89 d8 48 c1 e8 03 42 0f
RSP: 0018:ffffc9000c86ef00 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000009 RCX: ffff88802f62da00
RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000008
RBP: ffffc9000c86f710 R08: ffffffff83ad5f8b R09: ffffffff83adb6a7
R10: 0000000000000002 R11: ffff88802f62da00 R12: dffffc0000000000
R13: ffff88805e7f4178 R14: 00000000000001c0 R15: 0000000000000000
FS:  00005555833c6500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555833f1648 CR3: 000000004ee62000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __ocfs2_prepare_orphan_dir+0x146/0x310 fs/ocfs2/namei.c:2177
 ocfs2_prepare_orphan_dir+0x193/0x4d0 fs/ocfs2/namei.c:2222
 ocfs2_unlink+0x9de/0x1c80 fs/ocfs2/namei.c:960
 vfs_rmdir+0x3a3/0x510 fs/namei.c:4394
 do_rmdir+0x3b5/0x580 fs/namei.c:4453
 __do_sys_unlinkat fs/namei.c:4629 [inline]
 __se_sys_unlinkat fs/namei.c:4623 [inline]
 __x64_sys_unlinkat+0xde/0xf0 fs/namei.c:4623
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa4ea185307
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 07 01 00 00 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:00007ffe71cc6538 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007fa4ea185307
RDX: 0000000000000200 RSI: 00007ffe71cc76e0 RDI: 00000000ffffff9c
RBP: 00007fa4ea2018f4 R08: 00005555833e966b R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000207 R12: 00007ffe71cc76e0
R13: 00007fa4ea2018f4 R14: 00007ffe71cc9890 R15: 0000000000000051
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_find_dir_space_id fs/ocfs2/dir.c:3407 [inline]
RIP: 0010:ocfs2_prepare_dir_for_insert+0x32ed/0x5c40 fs/ocfs2/dir.c:4271
Code: 00 00 e8 f6 97 11 fe e9 ba 06 00 00 e8 ec 97 11 fe e9 4f 01 00 00 e8 e2 97 11 fe 49 8d 7f 08 49 8d 5f 09 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 bd 23 00 00 48 89 d8 48 c1 e8 03 42 0f
RSP: 0018:ffffc9000c86ef00 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000009 RCX: ffff88802f62da00
RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000008
RBP: ffffc9000c86f710 R08: ffffffff83ad5f8b R09: ffffffff83adb6a7
R10: 0000000000000002 R11: ffff88802f62da00 R12: dffffc0000000000
R13: ffff88805e7f4178 R14: 00000000000001c0 R15: 0000000000000000
FS:  00005555833c6500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f071bd47ab8 CR3: 000000004ee62000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	e8 f6 97 11 fe       	call   0xfe1197fd
   7:	e9 ba 06 00 00       	jmp    0x6c6
   c:	e8 ec 97 11 fe       	call   0xfe1197fd
  11:	e9 4f 01 00 00       	jmp    0x165
  16:	e8 e2 97 11 fe       	call   0xfe1197fd
  1b:	49 8d 7f 08          	lea    0x8(%r15),%rdi
  1f:	49 8d 5f 09          	lea    0x9(%r15),%rbx
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 bd 23 00 00    	jne    0x23f4
  37:	48 89 d8             	mov    %rbx,%rax
  3a:	48 c1 e8 03          	shr    $0x3,%rax
  3e:	42                   	rex.X
  3f:	0f                   	.byte 0xf