------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1159!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5328 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 f6 2a d2 8d ba 6a 04 00 00 48 c7 c1 80 62 f1 8b e8 3d 4e 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 ad 44 13 fe 90 <0f> 0b e8 a5 44 13 fe 90 0f 0b e8 9d 44 13 fe 90 0f 0b e8 95 44 13
RSP: 0000:ffffc9000a8d69a0 EFLAGS: 00010287
RAX: ffffffff83b14243 RBX: ffff88804143e014 RCX: 0000000000100000
RDX: ffffc90021804000 RSI: 00000000000cf358 RDI: 00000000000cf359
RBP: ffffc9000a8d6cd0 R08: ffff88801fcac023 R09: 1ffff11003f95804
R10: dffffc0000000000 R11: ffffed1003f95805 R12: ffff88803ff20000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88804143e014
FS:  00007f50e86d36c0(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f50e8714ff0 CR3: 0000000012c78000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x3305/0x4140 fs/ocfs2/aops.c:1796
 ocfs2_dio_wr_get_block+0xbbf/0x1800 fs/ocfs2/aops.c:2214
 get_more_blocks fs/direct-io.c:648 [inline]
 do_direct_IO fs/direct-io.c:936 [inline]
 __blockdev_direct_IO+0x15d7/0x32f0 fs/direct-io.c:1243
 ocfs2_direct_IO+0x251/0x2c0 fs/ocfs2/aops.c:2441
 generic_file_direct_write+0x1db/0x3e0 mm/filemap.c:4248
 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4417
 ocfs2_file_write_iter+0x1663/0x1e20 fs/ocfs2/file.c:2475
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x61d/0xb90 fs/read_write.c:686
 ksys_write+0x150/0x270 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f50e779aeb9
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:00007f50e86d3028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f50e7a16180 RCX: 00007f50e779aeb9
RDX: 0000000000806000 RSI: 0000200000000200 RDI: 0000000000000009
RBP: 00007f50e7808c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f50e7a16218 R14: 00007f50e7a16180 R15: 00007ffe330f6738
 </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 f6 2a d2 8d ba 6a 04 00 00 48 c7 c1 80 62 f1 8b e8 3d 4e 1c 00 48 8b 04 24 c6 40 1e f8 90 0f 0b e8 ad 44 13 fe 90 <0f> 0b e8 a5 44 13 fe 90 0f 0b e8 9d 44 13 fe 90 0f 0b e8 95 44 13
RSP: 0000:ffffc9000a8d69a0 EFLAGS: 00010287
RAX: ffffffff83b14243 RBX: ffff88804143e014 RCX: 0000000000100000
RDX: ffffc90021804000 RSI: 00000000000cf358 RDI: 00000000000cf359
RBP: ffffc9000a8d6cd0 R08: ffff88801fcac023 R09: 1ffff11003f95804
R10: dffffc0000000000 R11: ffffed1003f95805 R12: ffff88803ff20000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88804143e014
FS:  00007f50e86d36c0(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f50e86f49a0 CR3: 0000000012c78000 CR4: 0000000000352ef0