syzbot

loop0: detected capacity change from 0 to 32768
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
(syz.0.0,5333,0):__ocfs2_journal_access:728 ERROR: Error -30 getting 1 access to buffer!
(syz.0.0,5333,0):ocfs2_write_end_nolock:1945 ERROR: status = -30
(syz.0.0,5333,0):ocfs2_commit_trans:401 ERROR: status = -5
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:2256!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5333 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_dio_wr_get_block+0x17ac/0x17c0 fs/ocfs2/aops.c:2256
Code: c1 0f 8c ba fa ff ff 4c 89 f7 e8 5f 42 56 fe e9 ad fa ff ff e8 75 24 e7 fd 90 0f 0b e8 6d 24 e7 fd 90 0f 0b e8 65 24 e7 fd 90 <0f> 0b e8 5d 24 e7 fd 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc90007e3ee60 EFLAGS: 00010283
RAX: ffffffff83df5dab RBX: 00000000ffffffe2 RCX: 0000000000100000
RDX: ffffc9000f562000 RSI: 0000000000096ed9 RDI: 0000000000096eda
RBP: ffffc90007e3f030 R08: ffffffff905791f7 R09: 1ffffffff20af23e
R10: dffffc0000000000 R11: fffffbfff20af23f R12: ffff888043e9a490
R13: dffffc0000000000 R14: 0000000000004000 R15: 1ffff92000fc7de0
FS:  00007f90d1c366c0(0000) GS:ffff88808c54e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f90d0fbe200 CR3: 000000001d160000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 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:2460
 generic_file_direct_write+0x1d0/0x3f0 mm/filemap.c:4292
 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4461
 ocfs2_file_write_iter+0x1706/0x1f10 fs/ocfs2/file.c:2481
 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: 0033:0x7f90d0d9de59
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:00007f90d1c35fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f90d1025fa0 RCX: 00007f90d0d9de59
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007f90d0e33e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f90d1026038 R14: 00007f90d1025fa0 R15: 00007ffe6fdbacc8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_dio_wr_get_block+0x17ac/0x17c0 fs/ocfs2/aops.c:2256
Code: c1 0f 8c ba fa ff ff 4c 89 f7 e8 5f 42 56 fe e9 ad fa ff ff e8 75 24 e7 fd 90 0f 0b e8 6d 24 e7 fd 90 0f 0b e8 65 24 e7 fd 90 <0f> 0b e8 5d 24 e7 fd 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc90007e3ee60 EFLAGS: 00010283
RAX: ffffffff83df5dab RBX: 00000000ffffffe2 RCX: 0000000000100000
RDX: ffffc9000f562000 RSI: 0000000000096ed9 RDI: 0000000000096eda
RBP: ffffc90007e3f030 R08: ffffffff905791f7 R09: 1ffffffff20af23e
R10: dffffc0000000000 R11: fffffbfff20af23f R12: ffff888043e9a490
R13: dffffc0000000000 R14: 0000000000004000 R15: 1ffff92000fc7de0
FS:  00007f90d1c366c0(0000) GS:ffff88808c54e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f90d0f0c060 CR3: 000000001d160000 CR4: 0000000000352ef0