------------[ cut here ]------------
kernel BUG at fs/ocfs2/uptodate.c:509!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6728 Comm: syz.4.95 Tainted: G        W           syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:ocfs2_set_new_buffer_uptodate+0[  174.987382][ T6728] 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 73 b4 79 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc 66 90 e8 78 7f 1a fe 90 <0f> 0b e8 70 7f 1a fe 90 0f 0b e8 68 7f 1a fe 90 0f 0b e8 60 7f 1a
RSP: 0018:ffffc90004116548 EFLAGS: 00010287
RAX: ffffffff83a3dcc8 RBX: ffff88803df91ac0 RCX: 0000000000080000
RDX: ffffc9000de3b000 RSI: 00000000000006dc RDI: 00000000000006dd
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1e3a807 R12: 1ffff92000822cdc
R13: dffffc0000000000 R14: ffff88805db48a68 R15: ffff88805db48a68
FS:  00007f79abfee6c0(0000) GS:ffff8881269c4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79ab766d58 CR3: 000000003accc000 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:3708 [inline]
 open_last_lookups fs/namei.c:3807 [inline]
 path_openat+0x14fd/0x3840 fs/namei.c:4043
 do_filp_open+0x1fa/0x410 fs/namei.c:4073
 do_sys_openat2+0x121/0x1c0 fs/open.c:1435
 do_sys_open fs/open.c:1450 [inline]
 __do_sys_openat fs/open.c:1466 [inline]
 __se_sys_openat fs/open.c:1461 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1461
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f79add8ebe9
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:00007f79abfee038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f79adfb5fa0 RCX: 00007f79add8ebe9
RDX: 0000000000000042 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007f79ade11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f79adfb6038 R14: 00007f79adfb5fa0 R15: 00007fffa893f058
 </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 73 b4 79 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc 66 90 e8 78 7f 1a fe 90 <0f> 0b e8 70 7f 1a fe 90 0f 0b e8 68 7f 1a fe 90 0f 0b e8 60 7f 1a
RSP: 0018:ffffc90004116548 EFLAGS: 00010287
RAX: ffffffff83a3dcc8 RBX: ffff88803df91ac0 RCX: 0000000000080000
RDX: ffffc9000de3b000 RSI: 00000000000006dc RDI: 00000000000006dd
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1e3a807 R12: 1ffff92000822cdc
R13: dffffc0000000000 R14: ffff88805db48a68 R15: ffff88805db48a68
FS:  00007f79abfee6c0(0000) GS:ffff8881269c4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79ab766d58 CR3: 000000003accc000 CR4: 00000000003526f0