------------[ cut here ]------------
kernel BUG at fs/ocfs2/alloc.c:5581!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5357 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_remove_extent+0x1ecf/0x2020 fs/ocfs2/alloc.c:5581
Code: fa ff ff 48 8b 4c 24 08 80 e1 07 fe c1 38 c1 0f 8c 95 fa ff ff 48 8b 7c 24 08 e8 6c f6 8c fe e9 86 fa ff ff e8 c2 fa 27 fe 90 <0f> 0b f3 0f 1e fa 44 89 6c 24 10 65 8b 1d a3 cd 29 0f bf 07 00 00
RSP: 0018:ffffc9000d386840 EFLAGS: 00010293
RAX: ffffffff8397c27e RBX: ffffc9000d387038 RCX: ffff888033204880
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008
RBP: ffffc9000d386b90 R08: ffff888033204880 R09: 0000000000000006
R10: 00000000fffffffc R11: 0000000000000000 R12: 1ffff1100a79e89a
R13: 0000000000000008 R14: ffff888053cf44d0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37f05b3000 CR3: 0000000051156000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_remove_btree_range+0xdef/0x1540 fs/ocfs2/alloc.c:5778
 ocfs2_commit_truncate+0xb64/0x21d0 fs/ocfs2/alloc.c:7373
 ocfs2_truncate_for_delete fs/ocfs2/inode.c:699 [inline]
 ocfs2_wipe_inode fs/ocfs2/inode.c:866 [inline]
 ocfs2_delete_inode fs/ocfs2/inode.c:1155 [inline]
 ocfs2_evict_inode+0x1138/0x4100 fs/ocfs2/inode.c:1295
 evict+0x504/0x9c0 fs/inode.c:810
 ocfs2_dentry_iput+0x247/0x370 fs/ocfs2/dcache.c:407
 __dentry_kill+0x209/0x660 fs/dcache.c:669
 dput+0x19f/0x2b0 fs/dcache.c:911
 __fput+0x68e/0xa70 fs/file_table.c:476
 task_work_run+0x1d1/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:961
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102
 __do_sys_exit_group kernel/exit.c:1113 [inline]
 __se_sys_exit_group kernel/exit.c:1111 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 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: 0033:0x7f9092f8eec9
Code: Unable to access opcode bytes at 0x7f9092f8ee9f.
RSP: 002b:00007ffdb943d318 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9092f8eec9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000003 R08: 00000014b943d40f R09: 00007f90931b1280
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f90931b1280 R14: 0000000000000003 R15: 00007ffdb943d3d0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_remove_extent+0x1ecf/0x2020 fs/ocfs2/alloc.c:5581
Code: fa ff ff 48 8b 4c 24 08 80 e1 07 fe c1 38 c1 0f 8c 95 fa ff ff 48 8b 7c 24 08 e8 6c f6 8c fe e9 86 fa ff ff e8 c2 fa 27 fe 90 <0f> 0b f3 0f 1e fa 44 89 6c 24 10 65 8b 1d a3 cd 29 0f bf 07 00 00
RSP: 0018:ffffc9000d386840 EFLAGS: 00010293
RAX: ffffffff8397c27e RBX: ffffc9000d387038 RCX: ffff888033204880
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008
RBP: ffffc9000d386b90 R08: ffff888033204880 R09: 0000000000000006
R10: 00000000fffffffc R11: 0000000000000000 R12: 1ffff1100a79e89a
R13: 0000000000000008 R14: ffff888053cf44d0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055dd129a8168 CR3: 000000001141b000 CR4: 0000000000352ef0