ocfs2: Mounting device (7,4) on (node local, slot 0) with ordered data mode.
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 5923 Comm: syz.4.362 Not tainted 6.1.128-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:ocfs2_find_dir_space_id fs/ocfs2/dir.c:3408 [inline]
RIP: 0010:ocfs2_prepare_dir_for_insert+0x36ad/0x6120 fs/ocfs2/dir.c:4288
Code: 23 fe e9 8d 06 00 00 e8 31 ef 23 fe e9 31 03 00 00 e8 27 ef 23 fe 4c 8b 64 24 38 49 8d 7e 08 49 8d 5e 09 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 b8 24 00 00 4c 2b 64 24 18 48 89 d8 48
RSP: 0018:ffffc9000ceb6f40 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000080000
RDX: ffffc9000d77a000 RSI: 000000000000a3a8 RDI: 0000000000000008
RBP: ffffc9000ceb7770 R08: ffffffff836673cb R09: ffffffff8366cf41
R10: 0000000000000002 R11: ffff888028501dc0 R12: 00000001000001c0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802aa340f8
FS:  00007fc91dfe16c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faf78f07784 CR3: 000000004ed4f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_mknod+0xdeb/0x2e20 fs/ocfs2/namei.c:294
 ocfs2_mkdir+0x1c0/0x4e0 fs/ocfs2/namei.c:657
 vfs_mkdir+0x3b6/0x590 fs/namei.c:4106
 do_mkdirat+0x225/0x360 fs/namei.c:4131
 __do_sys_mkdirat fs/namei.c:4146 [inline]
 __se_sys_mkdirat fs/namei.c:4144 [inline]
 __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4144
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fc91d18b657
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 02 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:00007fc91dfe0e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fc91dfe0ef0 RCX: 00007fc91d18b657
RDX: 00000000000001ff RSI: 00004000000000c0 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00004000000000c0
R13: 00007fc91dfe0eb0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_find_dir_space_id fs/ocfs2/dir.c:3408 [inline]
RIP: 0010:ocfs2_prepare_dir_for_insert+0x36ad/0x6120 fs/ocfs2/dir.c:4288
Code: 23 fe e9 8d 06 00 00 e8 31 ef 23 fe e9 31 03 00 00 e8 27 ef 23 fe 4c 8b 64 24 38 49 8d 7e 08 49 8d 5e 09 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 b8 24 00 00 4c 2b 64 24 18 48 89 d8 48
RSP: 0018:ffffc9000ceb6f40 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000080000
RDX: ffffc9000d77a000 RSI: 000000000000a3a8 RDI: 0000000000000008
RBP: ffffc9000ceb7770 R08: ffffffff836673cb R09: ffffffff8366cf41
R10: 0000000000000002 R11: ffff888028501dc0 R12: 00000001000001c0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802aa340f8
FS:  00007fc91dfe16c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559e3fa04138 CR3: 000000004ed4f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	23 fe                	and    %esi,%edi
   2:	e9 8d 06 00 00       	jmp    0x694
   7:	e8 31 ef 23 fe       	call   0xfe23ef3d
   c:	e9 31 03 00 00       	jmp    0x342
  11:	e8 27 ef 23 fe       	call   0xfe23ef3d
  16:	4c 8b 64 24 38       	mov    0x38(%rsp),%r12
  1b:	49 8d 7e 08          	lea    0x8(%r14),%rdi
  1f:	49 8d 5e 09          	lea    0x9(%r14),%rbx
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 b8 24 00 00    	jne    0x24ef
  37:	4c 2b 64 24 18       	sub    0x18(%rsp),%r12
  3c:	48 89 d8             	mov    %rbx,%rax
  3f:	48                   	rex.W