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 writeback data mode.
loop0: detected capacity change from 32768 to 0
loop0: detected capacity change from 0 to 32767
OCFS2: ERROR (device loop0): int ocfs2_validate_inode_block(struct super_block *, struct buffer_head *): Invalid dinode #17058: signature = 
On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted.
OCFS2: File system is now read-only.
(syz.0.0,5326,0):ocfs2_assign_bh:2417 ERROR: status = -30
(syz.0.0,5326,0):ocfs2_inode_lock_full_nested:2512 ERROR: status = -30
(syz.0.0,5326,0):ocfs2_inode_lock_tracker:2694 ERROR: status = -30
(syz.0.0,5326,0):ocfs2_xattr_get:1335 ERROR: status = -30
------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:804!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted 6.14.0-rc6-syzkaller-00205-g3571e8b091f4 #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_reserve_suballoc_bits+0x4798/0x4e70 fs/ocfs2/suballoc.c:804
Code: e1 07 80 c1 03 38 c1 0f 8c 75 dd ff ff 48 8d bc 24 b0 01 00 00 e8 a8 4f 62 fe e9 63 dd ff ff e8 6e f6 41 08 e8 19 09 fb fd 90 <0f> 0b e8 11 09 fb fd 48 c7 c7 a0 0a 04 8f 48 8b 74 24 20 48 89 da
RSP: 0018:ffffc9000dd1ef00 EFLAGS: 00010283
RAX: ffffffff83c6d6b7 RBX: 00000000ffffffff RCX: 0000000000100000
RDX: ffffc9000e0a9000 RSI: 0000000000003701 RDI: 0000000000003702
RBP: ffffc9000dd1f3f0 R08: ffffffff83c69195 R09: 1ffffffff2079f4e
R10: dffffc0000000000 R11: fffffbfff2079f4f R12: 1ffff92001ba3e60
R13: ffff8880123f5a00 R14: ffff88803f65ae00 R15: dffffc0000000000
FS:  00007f3190ec46c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3190ec2fb8 CR3: 0000000043ec4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_reserve_cluster_bitmap_bits fs/ocfs2/suballoc.c:1132 [inline]
 ocfs2_reserve_clusters_with_limit+0x3dd/0xb60 fs/ocfs2/suballoc.c:1177
 ocfs2_convert_inline_data_to_extents+0x29d/0x1800 fs/ocfs2/alloc.c:7089
 ocfs2_extend_file+0x339/0x5b0 fs/ocfs2/file.c:1084
 ocfs2_setattr+0xad2/0x1ef0 fs/ocfs2/file.c:1214
 notify_change+0xbca/0xe90 fs/attr.c:552
 do_truncate+0x220/0x310 fs/open.c:65
 do_ftruncate+0x4a1/0x540 fs/open.c:192
 do_sys_ftruncate fs/open.c:207 [inline]
 __do_sys_ftruncate fs/open.c:212 [inline]
 __se_sys_ftruncate fs/open.c:210 [inline]
 __x64_sys_ftruncate+0x94/0xf0 fs/open.c:210
 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: 0033:0x7f318ff8d169
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:00007f3190ec4038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f31901a5fa0 RCX: 00007f318ff8d169
RDX: 0000000000000000 RSI: 0000000002007ffc RDI: 0000000000000007
RBP: 00007f319000e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f31901a5fa0 R15: 00007ffc282abad8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_reserve_suballoc_bits+0x4798/0x4e70 fs/ocfs2/suballoc.c:804
Code: e1 07 80 c1 03 38 c1 0f 8c 75 dd ff ff 48 8d bc 24 b0 01 00 00 e8 a8 4f 62 fe e9 63 dd ff ff e8 6e f6 41 08 e8 19 09 fb fd 90 <0f> 0b e8 11 09 fb fd 48 c7 c7 a0 0a 04 8f 48 8b 74 24 20 48 89 da
RSP: 0018:ffffc9000dd1ef00 EFLAGS: 00010283
RAX: ffffffff83c6d6b7 RBX: 00000000ffffffff RCX: 0000000000100000
RDX: ffffc9000e0a9000 RSI: 0000000000003701 RDI: 0000000000003702
RBP: ffffc9000dd1f3f0 R08: ffffffff83c69195 R09: 1ffffffff2079f4e
R10: dffffc0000000000 R11: fffffbfff2079f4f R12: 1ffff92001ba3e60
R13: ffff8880123f5a00 R14: ffff88803f65ae00 R15: dffffc0000000000
FS:  00007f3190ec46c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3190ec2fb8 CR3: 0000000043ec4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400