loop0: detected capacity change from 0 to 32768
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1443!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #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 89 11 fe 90 0f 0b e8 6d 89 11 fe 90 0f 0b e8 65 89 11 fe 90 0f 0b e8 5d 89 11 fe 90 0f 0b e8 55 89 11 fe 90 <0f> 0b e8 4d 89 11 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000d4be520 EFLAGS: 00010287
RAX: ffffffff83ae89fb RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc90020802000 RSI: 00000000000053e6 RDI: 00000000000053e7
RBP: ffffc9000d4be7b0 R08: ffffc9000d4be820 R09: 0000000000000000
R10: ffffc9000d4be820 R11: fffff52001a97d09 R12: ffff888041076908
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff1100820ed21
FS:  00007fb7d138e6c0(0000) GS:ffff88808d72d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb7ca1bd000 CR3: 0000000042d01000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_claim_metadata+0x178/0x4c0 fs/ocfs2/suballoc.c:2082
 ocfs2_dx_dir_attach_index+0x1c1/0xd90 fs/ocfs2/dir.c:2333
 ocfs2_expand_inline_dir fs/ocfs2/dir.c:3025 [inline]
 ocfs2_extend_dir+0x3994/0x4870 fs/ocfs2/dir.c:3207
 ocfs2_prepare_dir_for_insert+0x2fe8/0x5450 fs/ocfs2/dir.c:4312
 ocfs2_symlink+0xaa4/0x23e0 fs/ocfs2/namei.c:1875
 vfs_symlink+0x143/0x2f0 fs/namei.c:4817
 do_symlinkat+0x1b1/0x3f0 fs/namei.c:4843
 __do_sys_symlink fs/namei.c:4864 [inline]
 __se_sys_symlink fs/namei.c:4862 [inline]
 __x64_sys_symlink+0x7a/0x90 fs/namei.c:4862
 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: 0033:0x7fb7d5f8f7c9
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:00007fb7d138e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 00007fb7d61e6360 RCX: 00007fb7d5f8f7c9
RDX: 0000000000000000 RSI: 0000200000000800 RDI: 0000200000000540
RBP: 00007fb7d6013f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb7d61e63f8 R14: 00007fb7d61e6360 R15: 00007fffaf8eaa68
 </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 89 11 fe 90 0f 0b e8 6d 89 11 fe 90 0f 0b e8 65 89 11 fe 90 0f 0b e8 5d 89 11 fe 90 0f 0b e8 55 89 11 fe 90 <0f> 0b e8 4d 89 11 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000d4be520 EFLAGS: 00010287
RAX: ffffffff83ae89fb RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc90020802000 RSI: 00000000000053e6 RDI: 00000000000053e7
RBP: ffffc9000d4be7b0 R08: ffffc9000d4be820 R09: 0000000000000000
R10: ffffc9000d4be820 R11: fffff52001a97d09 R12: ffff888041076908
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff1100820ed21
FS:  00007fb7d138e6c0(0000) GS:ffff88808d72d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb7d0347fc8 CR3: 0000000042d01000 CR4: 0000000000352ef0