------------[ cut here ]------------
kernel BUG at fs/ocfs2/alloc.c:5581!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6038 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 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 ef 8a fe e9 86 fa ff ff e8 22 4e 25 fe 90 <0f> 0b f3 0f 1e fa 44 89 6c 24 10 65 8b 1d 23 33 27 0f bf 07 00 00
RSP: 0018:ffffc90002b36620 EFLAGS: 00010293
RAX: ffffffff839b0cfe RBX: ffffc90002b36e18 RCX: ffff888022619d00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000007
RBP: ffffc90002b36970 R08: ffff888022619d00 R09: 0000000000000006
R10: 00000000fffffffc R11: 0000000000000000 R12: 1ffff1102374d49a
R13: 0000000000000007 R14: ffff88811ba6a4d0 R15: dffffc0000000000
FS:  00007fd4ba7b36c0(0000) GS:ffff8880b83fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c002b1042b CR3: 000000010f4e2000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ocfs2_remove_btree_range+0xdef/0x1540 fs/ocfs2/alloc.c:5778
 ocfs2_commit_truncate+0xb64/0x21d0 fs/ocfs2/alloc.c:7372
 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+0x1d4/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x6b5/0x2300 kernel/exit.c:966
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
 get_signal+0x1285/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:40 [inline]
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 irqentry_exit_to_user_mode+0x7e/0x110 kernel/entry/common.c:73
 exc_page_fault+0xab/0x100 arch/x86/mm/fault.c:1535
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fd4b998ec31
Code: Unable to access opcode bytes at 0x7fd4b998ec07.
RSP: 002b:fffffffffffffe70 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fd4b9bd5fa0 RCX: 00007fd4b998ec29
RDX: 0000000000000000 RSI: fffffffffffffe70 RDI: 0000000000000000
RBP: 00007fd4b9a11e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd4b9bd6038 R14: 00007fd4b9bd5fa0 R15: 00007fff3bf18f38
 </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 ef 8a fe e9 86 fa ff ff e8 22 4e 25 fe 90 <0f> 0b f3 0f 1e fa 44 89 6c 24 10 65 8b 1d 23 33 27 0f bf 07 00 00
RSP: 0018:ffffc90002b36620 EFLAGS: 00010293
RAX: ffffffff839b0cfe RBX: ffffc90002b36e18 RCX: ffff888022619d00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000007
RBP: ffffc90002b36970 R08: ffff888022619d00 R09: 0000000000000006
R10: 00000000fffffffc R11: 0000000000000000 R12: 1ffff1102374d49a
R13: 0000000000000007 R14: ffff88811ba6a4d0 R15: dffffc0000000000
FS:  00007fd4ba7b36c0(0000) GS:ffff8880b83fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005638a868c008 CR3: 000000010ef0c000 CR4: 00000000000006f0
