loop2: detected capacity change from 0 to 32768
ocfs2: Mounting device (7,2) 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: 7428 Comm: syz.2.223 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
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 63 29 76 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc cc cc e8 48 06 14 fe 90 <0f> 0b e8 40 06 14 fe 90 0f 0b e8 38 06 14 fe 90 0f 0b e8 30 06 14
RSP: 0018:ffffc900041e6628 EFLAGS: 00010293
RAX: ffffffff83ac0748 RBX: ffff88805d295d80 RCX: ffff88802d275ac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1db484f R12: 1ffff9200083ccf8
R13: dffffc0000000000 R14: ffff88806443e6f0 R15: ffff88806443e6f0
FS:  00007f0e3a2966c0(0000) GS:ffff888126e5a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000030106000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ocfs2_extend_dir+0x115b/0x4850 fs/ocfs2/dir.c:3309
 ocfs2_prepare_dx_dir_for_insert fs/ocfs2/dir.c:4232 [inline]
 ocfs2_prepare_dir_for_insert+0x3d4e/0x5420 fs/ocfs2/dir.c:4288
 ocfs2_rename+0x18f6/0x3930 fs/ocfs2/namei.c:1481
 vfs_rename+0xbb6/0xee0 fs/namei.c:5929
 do_renameat2+0x538/0x8f0 fs/namei.c:6047
 __do_sys_rename fs/namei.c:6090 [inline]
 __se_sys_rename fs/namei.c:6088 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:6088
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e3c02f749
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:00007f0e3a296038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f0e3c285fa0 RCX: 00007f0e3c02f749
RDX: 0000000000000000 RSI: 0000200000000a40 RDI: 0000200000000100
RBP: 00007f0e3c0b3f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0e3c286038 R14: 00007f0e3c285fa0 R15: 00007ffd7a331ca8
 </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 63 29 76 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc cc cc e8 48 06 14 fe 90 <0f> 0b e8 40 06 14 fe 90 0f 0b e8 38 06 14 fe 90 0f 0b e8 30 06 14
RSP: 0018:ffffc900041e6628 EFLAGS: 00010293
RAX: ffffffff83ac0748 RBX: ffff88805d295d80 RCX: ffff88802d275ac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1db484f R12: 1ffff9200083ccf8
R13: dffffc0000000000 R14: ffff88806443e6f0 R15: ffff88806443e6f0
FS:  00007f0e3a2966c0(0000) GS:ffff888126e5a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000030106000 CR4: 00000000003526f0