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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: 5332 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_write_cluster fs/ocfs2/aops.c:1159 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1db4/0x1de0 fs/ocfs2/aops.c:1219
Code: 00 48 c7 c6 b0 81 f4 8d ba 6a 04 00 00 48 c7 c1 e0 ed 11 8c e8 cd fd 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 3d b6 0a fe 90 <0f> 0b e8 35 b6 0a fe 90 0f 0b e8 2d b6 0a fe 90 0f 0b e8 25 b6 0a
RSP: 0018:ffffc9000e35ee60 EFLAGS: 00010246
RAX: ffffffff83bae513 RBX: ffff88800016e014 RCX: 0000000000100000
RDX: ffffc90021003000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: ffffc9000e35f190 R08: ffff88805644b1e3 R09: 1ffff1100ac8963c
R10: dffffc0000000000 R11: ffffed100ac8963d R12: ffff88803a84c000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88800016e014
FS:  00007f7fb58926c0(0000) GS:ffff88808ca59000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000005ff000 CR3: 0000000032d9d000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x3316/0x41e0 fs/ocfs2/aops.c:1795
 ocfs2_write_begin+0x1c5/0x320 fs/ocfs2/aops.c:1883
 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4314
 ocfs2_file_write_iter+0x1663/0x1ed0 fs/ocfs2/file.c:2476
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x61d/0xb90 fs/read_write.c:688
 ksys_write+0x150/0x270 fs/read_write.c:740
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7fb499c799
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:00007f7fb5892028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7fb4c16270 RCX: 00007f7fb499c799
RDX: 000000000208e24b RSI: 0000200000000000 RDI: 0000000000000008
RBP: 00007f7fb4a32bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7fb4c16308 R14: 00007f7fb4c16270 R15: 00007fffa051f9d8
 </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+0x1db4/0x1de0 fs/ocfs2/aops.c:1219
Code: 00 48 c7 c6 b0 81 f4 8d ba 6a 04 00 00 48 c7 c1 e0 ed 11 8c e8 cd fd 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 3d b6 0a fe 90 <0f> 0b e8 35 b6 0a fe 90 0f 0b e8 2d b6 0a fe 90 0f 0b e8 25 b6 0a
RSP: 0018:ffffc9000e35ee60 EFLAGS: 00010246
RAX: ffffffff83bae513 RBX: ffff88800016e014 RCX: 0000000000100000
RDX: ffffc90021003000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: ffffc9000e35f190 R08: ffff88805644b1e3 R09: 1ffff1100ac8963c
R10: dffffc0000000000 R11: ffffed100ac8963d R12: ffff88803a84c000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88800016e014
FS:  00007f7fb58926c0(0000) GS:ffff88808ca59000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0d9f6de068 CR3: 0000000032d9d000 CR4: 0000000000352ef0