------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1443!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted 6.16.0-rc3-syzkaller-00121-gf02769e7f272 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1443 [inline]
RIP: 0010:ocfs2_claim_suballoc_bits+0x243c/0x2450 fs/ocfs2/suballoc.c:1996
Code: c2 fb ff ff e8 75 fc 19 fe 90 0f 0b e8 6d fc 19 fe 90 0f 0b e8 65 fc 19 fe 90 0f 0b e8 5d fc 19 fe 90 0f 0b e8 55 fc 19 fe 90 <0f> 0b e8 4d fc 19 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000f686400 EFLAGS: 00010293
RAX: ffffffff83a6521b RBX: 0000000000000000 RCX: ffff888000f50000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000f686690 R08: ffffc9000f686700 R09: 0000000000000000
R10: ffffc9000f686700 R11: fffff52001ed0ce5 R12: ffff88801ed3dc08
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11003da7b81
FS:  00007ff49cb0f6c0(0000) GS:ffff88808d250000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff48fc7fc00 CR3: 0000000043e50000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_claim_metadata+0x178/0x4c0 fs/ocfs2/suballoc.c:2082
 ocfs2_dx_dir_attach_index+0x1c1/0xd90 fs/ocfs2/dir.c:2325
 ocfs2_expand_inline_dir fs/ocfs2/dir.c:3017 [inline]
 ocfs2_extend_dir+0x3994/0x4870 fs/ocfs2/dir.c:3199
 ocfs2_prepare_dir_for_insert+0x2fe8/0x5450 fs/ocfs2/dir.c:4304
 ocfs2_mknod+0x819/0x2050 fs/ocfs2/namei.c:294
 ocfs2_create+0x1a5/0x440 fs/ocfs2/namei.c:673
 vfs_create+0x24b/0x400 fs/namei.c:3414
 do_mknodat+0x3c6/0x4d0 fs/namei.c:4294
 __do_sys_mknod fs/namei.c:4327 [inline]
 __se_sys_mknod fs/namei.c:4325 [inline]
 __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4325
 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: 0033:0x7ff49bd8e929
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:00007ff49cb0f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007ff49bfb6080 RCX: 00007ff49bd8e929
RDX: 0000000000000701 RSI: 0000000000000000 RDI: 0000200000000000
RBP: 00007ff49be10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff49bfb6080 R15: 00007ffd258a8d48
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1443 [inline]
RIP: 0010:ocfs2_claim_suballoc_bits+0x243c/0x2450 fs/ocfs2/suballoc.c:1996
Code: c2 fb ff ff e8 75 fc 19 fe 90 0f 0b e8 6d fc 19 fe 90 0f 0b e8 65 fc 19 fe 90 0f 0b e8 5d fc 19 fe 90 0f 0b e8 55 fc 19 fe 90 <0f> 0b e8 4d fc 19 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000f686400 EFLAGS: 00010293
RAX: ffffffff83a6521b RBX: 0000000000000000 RCX: ffff888000f50000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000f686690 R08: ffffc9000f686700 R09: 0000000000000000
R10: ffffc9000f686700 R11: fffff52001ed0ce5 R12: ffff88801ed3dc08
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11003da7b81
FS:  00007ff49cb0f6c0(0000) GS:ffff88808d250000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000043e50000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400