loop0: detected capacity change from 0 to 32768
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
netlink: 132 bytes leftover after parsing attributes in process `syz.0.0'.
ata1.00: invalid multi_count 128 ignored
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1161!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5319 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:1161 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1da7/0x1dd0 fs/ocfs2/aops.c:1221
Code: 48 c7 c6 16 0f 02 8e ba 6c 04 00 00 48 c7 c1 a0 de 12 8c e8 ab cc 1c 00 48 8b 44 24 10 c6 40 1e f8 90 0f 0b e8 8a 6b 04 fe 90 <0f> 0b e8 82 6b 04 fe 90 0f 0b e8 7a 6b 04 fe 90 0f 0b e8 72 6b 04
RSP: 0000:ffffc900035fe540 EFLAGS: 00010287
RAX: ffffffff83c1c606 RBX: ffff888046de2488 RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 00000000000c6911 RDI: 00000000000c6912
RBP: ffffc900035fe890 R08: ffff888046de2313 R09: 1ffff11008dbc462
R10: dffffc0000000000 R11: ffffed1008dbc463 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888041520014 R15: 0000000000000000
FS:  00007fca1cf1e6c0(0000) GS:ffff88808c85e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fca10dff000 CR3: 0000000040b5c000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x3346/0x41f0 fs/ocfs2/aops.c:1797
 ocfs2_dio_wr_get_block+0xbab/0x17c0 fs/ocfs2/aops.c:2215
 get_more_blocks fs/direct-io.c:644 [inline]
 do_direct_IO fs/direct-io.c:932 [inline]
 __blockdev_direct_IO+0x1590/0x3380 fs/direct-io.c:1236
 ocfs2_direct_IO+0x249/0x2c0 fs/ocfs2/aops.c:2455
 generic_file_direct_write+0x1d0/0x3f0 mm/filemap.c:4270
 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4439
 ocfs2_file_write_iter+0x1706/0x1f10 fs/ocfs2/file.c:2476
 iter_file_splice_write+0xa31/0x1240 fs/splice.c:736
 do_splice_from fs/splice.c:936 [inline]
 direct_splice_actor+0x101/0x160 fs/splice.c:1159
 splice_direct_to_actor+0x57b/0xcb0 fs/splice.c:1103
 do_splice_direct_actor fs/splice.c:1202 [inline]
 do_splice_direct+0x195/0x290 fs/splice.c:1228
 do_sendfile+0x52e/0x7c0 fs/read_write.c:1371
 __do_sys_sendfile64 fs/read_write.c:1432 [inline]
 __se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1418
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fca1bf9ce59
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:00007fca1cf1dfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fca1c215fa0 RCX: 00007fca1bf9ce59
RDX: 0000000000000000 RSI: 000000000000000c RDI: 000000000000000b
RBP: 00007fca1c032e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fca1c216038 R14: 00007fca1c215fa0 R15: 00007ffee5b8de38
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1161 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1da7/0x1dd0 fs/ocfs2/aops.c:1221
Code: 48 c7 c6 16 0f 02 8e ba 6c 04 00 00 48 c7 c1 a0 de 12 8c e8 ab cc 1c 00 48 8b 44 24 10 c6 40 1e f8 90 0f 0b e8 8a 6b 04 fe 90 <0f> 0b e8 82 6b 04 fe 90 0f 0b e8 7a 6b 04 fe 90 0f 0b e8 72 6b 04
RSP: 0000:ffffc900035fe540 EFLAGS: 00010287
RAX: ffffffff83c1c606 RBX: ffff888046de2488 RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 00000000000c6911 RDI: 00000000000c6912
RBP: ffffc900035fe890 R08: ffff888046de2313 R09: 1ffff11008dbc462
R10: dffffc0000000000 R11: ffffed1008dbc463 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888041520014 R15: 0000000000000000
FS:  00007fca1cf1e6c0(0000) GS:ffff88808c85e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fca10dff000 CR3: 0000000040b5c000 CR4: 0000000000352ef0