syz[   74.715716][ T5296] Bluetooth: hci0: command tx timeout
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:1441!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5312 Comm: syz.0.0 Not tainted 6.15.0-rc4-syzkaller-00051-g7a13c14ee59d #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:1441 [inline]
RIP: 0010:ocfs2_claim_suballoc_bits+0x21d9/0x2310 fs/ocfs2/suballoc.c:1982
Code: 38 fb ff ff e8 f8 6a 1e fe 90 0f 0b e8 f0 6a 1e fe 90 0f 0b e8 e8 6a 1e fe 90 0f 0b e8 e0 6a 1e fe 90 0f 0b e8 d8 6a 1e fe 90 <0f> 0b e8 d0 6a 1e fe 90 0f 0b f3 0f 1e fa 4d 89 f4 65 8b 1d a3 ea
RSP: 0018:ffffc9000d54f160 EFLAGS: 00010287
RAX: ffffffff83a15578 RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc9000e0a2000 RSI: 000000000000031c RDI: 000000000000031d
RBP: ffffc9000d54f3f0 R08: ffffc9000d54f460 R09: 0000000000000000
R10: ffffc9000d54f460 R11: fffff52001aa9e91 R12: ffff88805322f200
R13: ffff88804221bc88 R14: 0000000000000001 R15: dffffc0000000000
FS:  00007fccb8a096c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fccac9ff000 CR3: 00000000415c1000 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:2057
 ocfs2_create_refcount_tree+0x54f/0x1250 fs/ocfs2/refcounttree.c:591
 ocfs2_reflink_remap_blocks+0x2ea/0x1930 fs/ocfs2/refcounttree.c:4646
 ocfs2_remap_file_range+0x4b7/0x730 fs/ocfs2/file.c:2740
 vfs_copy_file_range+0xd53/0x1310 fs/read_write.c:1589
 __do_sys_copy_file_range fs/read_write.c:1675 [inline]
 __se_sys_copy_file_range+0x319/0x460 fs/read_write.c:1642
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fccb7b8e969
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:00007fccb8a09038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007fccb7db5fa0 RCX: 00007fccb7b8e969
RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007fccb7c10ab1 R08: 0000020000000008 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fccb7db5fa0 R15: 00007ffe851a0de8
 </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+0x21d9/0x2310 fs/ocfs2/suballoc.c:1982
Code: 38 fb ff ff e8 f8 6a 1e fe 90 0f 0b e8 f0 6a 1e fe 90 0f 0b e8 e8 6a 1e fe 90 0f 0b e8 e0 6a 1e fe 90 0f 0b e8 d8 6a 1e fe 90 <0f> 0b e8 d0 6a 1e fe 90 0f 0b f3 0f 1e fa 4d 89 f4 65 8b 1d a3 ea
RSP: 0018:ffffc9000d54f160 EFLAGS: 00010287
RAX: ffffffff83a15578 RBX: 0000000000000000 RCX: 0000000000100000
RDX: ffffc9000e0a2000 RSI: 000000000000031c RDI: 000000000000031d
RBP: ffffc9000d54f3f0 R08: ffffc9000d54f460 R09: 0000000000000000
R10: ffffc9000d54f460 R11: fffff52001aa9e91 R12: ffff88805322f200
R13: ffff88804221bc88 R14: 0000000000000001 R15: dffffc0000000000
FS:  00007fccb8a096c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000180 CR3: 00000000415c1000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400