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.
=======================================================
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1441!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5108 Comm: syz.0.0 Not tainted 6.11.0-rc7-syzkaller-00133-ge936e7d4a83b #0
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:1441 [inline]
RIP: 0010:ocfs2_claim_suballoc_bits+0x240c/0x2570 fs/ocfs2/suballoc.c:1982
Code: 7a 9b 03 fe 90 0f 0b e8 72 9b 03 fe 90 0f 0b e8 6a 9b 03 fe 90 0f 0b e8 62 9b 03 fe 90 0f 0b e8 1a b8 29 08 e8 55 9b 03 fe 90 <0f> 0b e8 4d 9b 03 fe 90 0f 0b f3 0f 1e fa 65 8b 1d 9b e5 73 7c bf
RSP: 0018:ffffc90002eaf2c0 EFLAGS: 00010283
RAX: ffffffff838ff15b RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000b6da000 RSI: 0000000000014ec3 RDI: 0000000000014ec4
RBP: ffffc90002eaf570 R08: ffffffff838fdc45 R09: 0000000000000000
R10: ffffc90002eaf600 R11: fffff520005d5ec5 R12: dffffc0000000000
R13: ffff888035091488 R14: ffff88800e484400 R15: 0000000000000002
FS:  00007f1f22a476c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ceecb3c000 CR3: 000000003d884000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_claim_new_inode+0x338/0x870 fs/ocfs2/suballoc.c:2267
 ocfs2_mknod_locked+0x17a/0x3b0 fs/ocfs2/namei.c:633
 ocfs2_mknod+0x17d4/0x2b40 fs/ocfs2/namei.c:379
 vfs_mknod+0x36d/0x3b0 fs/namei.c:4088
 do_mknodat+0x3ec/0x5b0
 __do_sys_mknodat fs/namei.c:4166 [inline]
 __se_sys_mknodat fs/namei.c:4163 [inline]
 __x64_sys_mknodat+0xa7/0xc0 fs/namei.c:4163
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1f21b7def9
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:00007f1f22a47038 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 00007f1f21d35f80 RCX: 00007f1f21b7def9
RDX: f0b9ce0949ff22d3 RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007f1f21bf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000701 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1f21d35f80 R15: 00007ffe4dbc5818
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_find_victim_chain fs/ocfs2/suballoc.c:1441 [inline]
RIP: 0010:ocfs2_claim_suballoc_bits+0x240c/0x2570 fs/ocfs2/suballoc.c:1982
Code: 7a 9b 03 fe 90 0f 0b e8 72 9b 03 fe 90 0f 0b e8 6a 9b 03 fe 90 0f 0b e8 62 9b 03 fe 90 0f 0b e8 1a b8 29 08 e8 55 9b 03 fe 90 <0f> 0b e8 4d 9b 03 fe 90 0f 0b f3 0f 1e fa 65 8b 1d 9b e5 73 7c bf
RSP: 0018:ffffc90002eaf2c0 EFLAGS: 00010283
RAX: ffffffff838ff15b RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000b6da000 RSI: 0000000000014ec3 RDI: 0000000000014ec4
RBP: ffffc90002eaf570 R08: ffffffff838fdc45 R09: 0000000000000000
R10: ffffc90002eaf600 R11: fffff520005d5ec5 R12: dffffc0000000000
R13: ffff888035091488 R14: ffff88800e484400 R15: 0000000000000002
FS:  00007f1f22a476c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffad4baf5eb CR3: 000000003d884000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400