------------[ cut here ]------------
kernel BUG at fs/ocfs2/suballoc.c:2902!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5317 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 04/01/2014
RIP: 0010:_ocfs2_free_suballoc_bits+0x24f9/0x2760 fs/ocfs2/suballoc.c:2902
Code: fe e9 84 f3 ff ff e8 86 15 f2 fd 48 c7 c7 a0 b6 ef 8e 48 8b 74 24 38 4c 89 e2 e8 d2 0b 22 01 e9 8e f3 ff ff e8 68 15 f2 fd 90 <0f> 0b e8 60 15 f2 fd 90 0f 0b 65 8b 1d 4a c4 6b 0f bf 07 00 00 00
RSP: 0018:ffffc90005a06800 EFLAGS: 00010283
RAX: ffffffff83d42bd8 RBX: 0000000000000001 RCX: 0000000000100000
RDX: ffffc90021003000 RSI: 000000000004011e RDI: 000000000004011f
RBP: ffffc90005a06a68 R08: 0000000000000008 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff2065a5f R12: ffff888054092488
R13: 1ffff1100a812491 R14: 1ffff92000b40d14 R15: ffff88804d947e00
FS:  00007fd331bd46c0(0000) GS:ffff88808c821000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055590950fb30 CR3: 0000000012b82000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 _ocfs2_free_clusters+0x5c6/0xa80 fs/ocfs2/suballoc.c:3020
 ocfs2_replay_truncate_records fs/ocfs2/alloc.c:5988 [inline]
 __ocfs2_flush_truncate_log+0x762/0x1230 fs/ocfs2/alloc.c:6071
 ocfs2_remove_btree_range+0x724/0x15f0 fs/ocfs2/alloc.c:5762
 ocfs2_commit_truncate+0xc60/0x2560 fs/ocfs2/alloc.c:7383
 ocfs2_truncate_file+0xdc9/0x14b0 fs/ocfs2/file.c:515
 ocfs2_setattr+0x1641/0x1d10 fs/ocfs2/file.c:1224
 notify_change+0xbba/0xea0 fs/attr.c:556
 do_truncate+0x1c2/0x250 fs/open.c:68
 handle_truncate fs/namei.c:4305 [inline]
 do_open fs/namei.c:4704 [inline]
 path_openat+0x2fed/0x3830 fs/namei.c:4859
 do_file_open+0x23e/0x4a0 fs/namei.c:4888
 do_sys_openat2+0x115/0x200 fs/open.c:1395
 do_sys_open fs/open.c:1401 [inline]
 __do_sys_creat fs/open.c:1479 [inline]
 __se_sys_creat fs/open.c:1473 [inline]
 __x64_sys_creat+0x8f/0xc0 fs/open.c:1473
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd33579ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd331bd3fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fd335a16090 RCX: 00007fd33579ce59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000e00
RBP: 00007fd335832e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd335a16128 R14: 00007fd335a16090 R15: 00007ffcd4d5df98
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:_ocfs2_free_suballoc_bits+0x24f9/0x2760 fs/ocfs2/suballoc.c:2902
Code: fe e9 84 f3 ff ff e8 86 15 f2 fd 48 c7 c7 a0 b6 ef 8e 48 8b 74 24 38 4c 89 e2 e8 d2 0b 22 01 e9 8e f3 ff ff e8 68 15 f2 fd 90 <0f> 0b e8 60 15 f2 fd 90 0f 0b 65 8b 1d 4a c4 6b 0f bf 07 00 00 00
RSP: 0018:ffffc90005a06800 EFLAGS: 00010283
RAX: ffffffff83d42bd8 RBX: 0000000000000001 RCX: 0000000000100000
RDX: ffffc90021003000 RSI: 000000000004011e RDI: 000000000004011f
RBP: ffffc90005a06a68 R08: 0000000000000008 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff2065a5f R12: ffff888054092488
R13: 1ffff1100a812491 R14: 1ffff92000b40d14 R15: ffff88804d947e00
FS:  00007fd331bd46c0(0000) GS:ffff88808c821000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055590950fb30 CR3: 0000000012b82000 CR4: 0000000000352ef0