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.
overlayfs: failed to create directory ./file0/work (errno: 28); mounting read-only
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:1443!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5361 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 45 c7 16 fe 90 0f 0b e8 3d c7 16 fe 90 0f 0b e8 35 c7 16 fe 90 0f 0b e8 2d c7 16 fe 90 0f 0b e8 25 c7 16 fe 90 <0f> 0b e8 1d c7 16 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000d426760 EFLAGS: 00010287
RAX: ffffffff83a9078b RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc9000e042000 RSI: 0000000000002ac9 RDI: 0000000000002aca
RBP: ffffc9000d4269f0 R08: ffffc9000d426a80 R09: 0000000000000003
R10: 0000000000000005 R11: 0000000000000002 R12: ffff888011a36e88
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11002346dd1
FS:  00007f6e91dc46c0(0000) GS:ffff88808d00a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 00000000434bc000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __ocfs2_claim_clusters+0x303/0x8f0 fs/ocfs2/suballoc.c:2421
 ocfs2_claim_clusters fs/ocfs2/suballoc.c:2458 [inline]
 ocfs2_block_group_alloc_contig fs/ocfs2/suballoc.c:432 [inline]
 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:699 [inline]
 ocfs2_reserve_suballoc_bits+0xf1e/0x4640 fs/ocfs2/suballoc.c:834
 ocfs2_reserve_new_metadata_blocks+0x403/0x940 fs/ocfs2/suballoc.c:984
 ocfs2_init_xattr_set_ctxt+0x307/0x700 fs/ocfs2/xattr.c:3277
 ocfs2_xattr_set+0xb70/0x11f0 fs/ocfs2/xattr.c:3634
 __vfs_setxattr+0x43c/0x480 fs/xattr.c:200
 __vfs_setxattr_noperm+0x12d/0x660 fs/xattr.c:234
 vfs_setxattr+0x16b/0x2f0 fs/xattr.c:321
 ovl_do_setxattr fs/overlayfs/overlayfs.h:317 [inline]
 ovl_setxattr fs/overlayfs/overlayfs.h:329 [inline]
 ovl_init_uuid_xattr+0x53d/0x910 fs/overlayfs/util.c:834
 ovl_fill_super+0x2a48/0x35b0 fs/overlayfs/super.c:1430
 vfs_get_super fs/super.c:1325 [inline]
 get_tree_nodev+0xbb/0x150 fs/super.c:1344
 vfs_get_tree+0x8f/0x2b0 fs/super.c:1815
 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808
 do_mount fs/namespace.c:4136 [inline]
 __do_sys_mount fs/namespace.c:4347 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4324
 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: 0033:0x7f6e90f8eba9
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:00007f6e91dc4038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6e911d5fa0 RCX: 00007f6e90f8eba9
RDX: 0000200000000000 RSI: 0000200000000080 RDI: 0000000000000000
RBP: 00007f6e91011e19 R08: 0000200000000200 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6e911d6038 R14: 00007f6e911d5fa0 R15: 00007ffe4c097a98
 </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 45 c7 16 fe 90 0f 0b e8 3d c7 16 fe 90 0f 0b e8 35 c7 16 fe 90 0f 0b e8 2d c7 16 fe 90 0f 0b e8 25 c7 16 fe 90 <0f> 0b e8 1d c7 16 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc9000d426760 EFLAGS: 00010287
RAX: ffffffff83a9078b RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc9000e042000 RSI: 0000000000002ac9 RDI: 0000000000002aca
RBP: ffffc9000d4269f0 R08: ffffc9000d426a80 R09: 0000000000000003
R10: 0000000000000005 R11: 0000000000000002 R12: ffff888011a36e88
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11002346dd1
FS:  00007f6e91dc46c0(0000) GS:ffff88808d00a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e91da2fc8 CR3: 00000000434bc000 CR4: 0000000000352ef0