loop2: detected capacity change from 0 to 32768
ocfs2: Mounting device (7,2) 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: 7438 Comm: syz.2.573 Not tainted 5.15.178-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+0x3409/0x5eb0 fs/ocfs2/dir.c:4288
Code: 41 fe e9 4c cf ff ff e8 65 62 41 fe e9 46 01 00 00 e8 5b 62 41 fe 48 8b 54 24 20 48 8d 7a 08 48 8d 5a 09 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 e7 24 00 00 4c 8b 6c 24 68 4c 2b ac 24
RSP: 0018:ffffc9000324eae0 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000080000
RDX: 0000000000000000 RSI: 0000000000002377 RDI: 0000000000000008
RBP: ffffc9000324f310 R08: ffffffff833ef617 R09: ffffffff833f4ee3
R10: 0000000000000002 R11: ffff88802c343b80 R12: dffffc0000000000
R13: ffff88807281b2c8 R14: ffff88805a05a018 R15: ffff88805fea4178
FS:  00007f44a5f626c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7adf3d1f98 CR3: 000000005784d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_mknod+0xd84/0x2cd0 fs/ocfs2/namei.c:294
 ocfs2_create+0x194/0x430 fs/ocfs2/namei.c:674
 lookup_open fs/namei.c:3462 [inline]
 open_last_lookups fs/namei.c:3532 [inline]
 path_openat+0x130a/0x2f20 fs/namei.c:3739
 do_filp_open+0x21c/0x460 fs/namei.c:3769
 do_sys_openat2+0x13b/0x4f0 fs/open.c:1253
 do_sys_open fs/open.c:1269 [inline]
 __do_sys_openat fs/open.c:1285 [inline]
 __se_sys_openat fs/open.c:1280 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1280
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f44a80f8de9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f44a5f62038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f44a8311fa0 RCX: 00007f44a80f8de9
RDX: 0000000000000042 RSI: 0000400000000040 RDI: ffffffffffffff9c
RBP: 00007f44a817a2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f44a8311fa0 R15: 00007fff756b6278
 </TASK>
Modules linked in:
---[ end trace 5a0a4a66bcb94216 ]---
RIP: 0010:ocfs2_find_dir_space_id fs/ocfs2/dir.c:3408 [inline]
RIP: 0010:ocfs2_prepare_dir_for_insert+0x3409/0x5eb0 fs/ocfs2/dir.c:4288
Code: 41 fe e9 4c cf ff ff e8 65 62 41 fe e9 46 01 00 00 e8 5b 62 41 fe 48 8b 54 24 20 48 8d 7a 08 48 8d 5a 09 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 e7 24 00 00 4c 8b 6c 24 68 4c 2b ac 24
RSP: 0018:ffffc9000324eae0 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000080000
RDX: 0000000000000000 RSI: 0000000000002377 RDI: 0000000000000008
RBP: ffffc9000324f310 R08: ffffffff833ef617 R09: ffffffff833f4ee3
R10: 0000000000000002 R11: ffff88802c343b80 R12: dffffc0000000000
R13: ffff88807281b2c8 R14: ffff88805a05a018 R15: ffff88805fea4178
FS:  00007f44a5f626c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f06ba446178 CR3: 000000005784d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	41 fe                	rex.B (bad)
   2:	e9 4c cf ff ff       	jmp    0xffffcf53
   7:	e8 65 62 41 fe       	call   0xfe416271
   c:	e9 46 01 00 00       	jmp    0x157
  11:	e8 5b 62 41 fe       	call   0xfe416271
  16:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  1b:	48 8d 7a 08          	lea    0x8(%rdx),%rdi
  1f:	48 8d 5a 09          	lea    0x9(%rdx),%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 e7 24 00 00    	jne    0x251e
  37:	4c 8b 6c 24 68       	mov    0x68(%rsp),%r13
  3c:	4c                   	rex.WR
  3d:	2b                   	.byte 0x2b
  3e:	ac                   	lods   %ds:(%rsi),%al
  3f:	24                   	.byte 0x24