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kernel BUG at fs/ocfs2/aops.c:1159!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5323 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_write_cluster fs/ocfs2/aops.c:1159 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 fs/ocfs2/aops.c:1219
Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 78 f5 74 8d ba 6a 04 00 00 48 c7 c1 40 ee aa 8b e8 28 51 1b 00 90 0f 0b e8 10 fd 1f fe 90 <0f> 0b e8 08 fd 1f fe 90 0f 0b e8 00 fd 1f fe 90 0f 0b e8 f8 fc 1f
RSP: 0018:ffffc9000d50ee60 EFLAGS: 00010287
RAX: ffffffff83a01920 RBX: ffff8880114ba014 RCX: 0000000000100000
RDX: ffffc9000e65b000 RSI: 000000000000095f RDI: 0000000000000960
RBP: ffffc9000d50f190 R08: ffff888050d5c023 R09: 1ffff1100a1ab804
R10: dffffc0000000000 R11: ffffed100a1ab805 R12: ffff888041110000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880114ba014
FS:  00007f45b73f56c0(0000) GS:ffff88808d732000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ac86505168 CR3: 0000000041393000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x31a3/0x4340 fs/ocfs2/aops.c:1796
 ocfs2_write_begin+0x1bb/0x310 fs/ocfs2/aops.c:1884
 generic_perform_write+0x2c5/0x900 mm/filemap.c:4242
 ocfs2_file_write_iter+0x157a/0x1d10 fs/ocfs2/file.c:2469
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x5c9/0xb30 fs/read_write.c:686
 ksys_write+0x145/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f45baf8f6c9
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:00007f45b73f5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f45bb1e6090 RCX: 00007f45baf8f6c9
RDX: 000000000000fea7 RSI: 0000200000000200 RDI: 0000000000000007
RBP: 00007f45bb011f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f45bb1e6128 R14: 00007f45bb1e6090 R15: 00007ffedff24d48
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1159 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 fs/ocfs2/aops.c:1219
Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 78 f5 74 8d ba 6a 04 00 00 48 c7 c1 40 ee aa 8b e8 28 51 1b 00 90 0f 0b e8 10 fd 1f fe 90 <0f> 0b e8 08 fd 1f fe 90 0f 0b e8 00 fd 1f fe 90 0f 0b e8 f8 fc 1f
RSP: 0018:ffffc9000d50ee60 EFLAGS: 00010287
RAX: ffffffff83a01920 RBX: ffff8880114ba014 RCX: 0000000000100000
RDX: ffffc9000e65b000 RSI: 000000000000095f RDI: 0000000000000960
RBP: ffffc9000d50f190 R08: ffff888050d5c023 R09: 1ffff1100a1ab804
R10: dffffc0000000000 R11: ffffed100a1ab805 R12: ffff888041110000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880114ba014
FS:  00007f45b73f56c0(0000) GS:ffff88808d732000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000041393000 CR4: 0000000000352ef0