ocfs2: Mounting device (7,3) on (node local, slot 0) with writeback data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/uptodate.c:509!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6898 Comm: syz.3.138 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170 fs/ocfs2/uptodate.c:509
Code: 80 3c 20 00 74 08 4c 89 f7 e8 f3 0e 72 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 0d 20 4c 1c e8 68 5e 0c fe 90 <0f> 0b e8 60 5e 0c fe 90 0f 0b e8 58 5e 0c fe 90 0f 0b e8 50 5e 0c
RSP: 0018:ffffc90003046588 EFLAGS: 00010287
RAX: ffffffff83b3e5a8 RBX: ffff88806a92c130 RCX: 0000000000080000
RDX: ffffc9000d10a000 RSI: 00000000000007c8 RDI: 00000000000007c9
RBP: 0000000000000001 R08: ffffffff8f9e1877 R09: 1ffffffff1f3c30e
R10: dffffc0000000000 R11: fffffbfff1f3c30f R12: 1ffff92000608ce4
R13: dffffc0000000000 R14: ffff88806a8fa000 R15: ffff88806a8fa000
FS:  00007f555935d6c0(0000) GS:ffff888125e0b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefd15b2fb8 CR3: 0000000075800000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ocfs2_extend_dir+0x1172/0x4870 fs/ocfs2/dir.c:3309
 ocfs2_prepare_dx_dir_for_insert fs/ocfs2/dir.c:4232 [inline]
 ocfs2_prepare_dir_for_insert+0x3d7b/0x5450 fs/ocfs2/dir.c:4288
 ocfs2_mknod+0x819/0x2050 fs/ocfs2/namei.c:297
 ocfs2_create+0x1a5/0x440 fs/ocfs2/namei.c:676
 lookup_open fs/namei.c:3796 [inline]
 open_last_lookups fs/namei.c:3895 [inline]
 path_openat+0x14f4/0x3830 fs/namei.c:4131
 do_filp_open+0x1fa/0x410 fs/namei.c:4161
 do_sys_openat2+0x121/0x1c0 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1463
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f555858eec9
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:00007f555935d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f55587e5fa0 RCX: 00007f555858eec9
RDX: 000000000006b142 RSI: 0000200000004400 RDI: ffffffffffffff9c
RBP: 00007f5558611f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f55587e6038 R14: 00007f55587e5fa0 R15: 00007ffc55774b88
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170 fs/ocfs2/uptodate.c:509
Code: 80 3c 20 00 74 08 4c 89 f7 e8 f3 0e 72 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 0d 20 4c 1c e8 68 5e 0c fe 90 <0f> 0b e8 60 5e 0c fe 90 0f 0b e8 58 5e 0c fe 90 0f 0b e8 50 5e 0c
RSP: 0018:ffffc90003046588 EFLAGS: 00010287
RAX: ffffffff83b3e5a8 RBX: ffff88806a92c130 RCX: 0000000000080000
RDX: ffffc9000d10a000 RSI: 00000000000007c8 RDI: 00000000000007c9
RBP: 0000000000000001 R08: ffffffff8f9e1877 R09: 1ffffffff1f3c30e
R10: dffffc0000000000 R11: fffffbfff1f3c30f R12: 1ffff92000608ce4
R13: dffffc0000000000 R14: ffff88806a8fa000 R15: ffff88806a8fa000
FS:  00007f555935d6c0(0000) GS:ffff888125e0b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a66b6a000 CR3: 0000000075800000 CR4: 00000000003526f0