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kernel BUG at fs/ocfs2/uptodate.c:509!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6220 Comm: syz.3.39 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170
Code: 80 3c 20 00 74 08 4c 89 f7 e8 a3 fb 74 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 4d 7f ce 07 e8 f8 8c 11 fe 90 <0f> 0b e8 f0 8c 11 fe 90 0f 0b e8 e8 8c 11 fe 90 0f 0b e8 e0 8c 11
RSP: 0000:ffffc9000291daa8 EFLAGS: 00010293
RAX: ffffffff83ae2118 RBX: ffff888037040830 RCX: ffff888107d05640
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8fa39037 R09: 1ffffffff1f47206
R10: dffffc0000000000 R11: fffffbfff1f47207 R12: 1ffff92000523b88
R13: dffffc0000000000 R14: ffff8881035f7828 R15: ffff8881035f7828
FS:  00007fe9c10146c0(0000) GS:ffff8881a3c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9c03c5fac CR3: 000000010b448000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ocfs2_extend_dir+0x1172/0x4870
 ocfs2_prepare_dir_for_insert+0x3d7b/0x5450
 ocfs2_mknod+0x819/0x2050
 ocfs2_create+0x1a5/0x440
 path_openat+0x14f4/0x3830
 do_filp_open+0x1fa/0x410
 filp_open+0x176/0x1d0
 coredump_file+0x33e/0xaf0
 vfs_coredump+0x1688/0x2a50
 get_signal+0x1109/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 irqentry_exit_to_user_mode+0x81/0x120
 exc_page_fault+0x9f/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x6855d883
Code: Unable to access opcode bytes at 0x6855d859.
RSP: 002b:00002000000001d8 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fe9c03c5fa0 RCX: 00007fe9c018ebe9
RDX: 00002000000000c0 RSI: 00002000000001d0 RDI: 0000000000000480
RBP: 00007fe9c0211e19 R08: 0000200000000380 R09: 0000200000000380
R10: 0000200000000200 R11: 0000000000000202 R12: 0000000000000000
R13: 00007fe9c03c6038 R14: 00007fe9c03c5fa0 R15: 00007ffd118fe858
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_set_new_buffer_uptodate+0x149/0x170
Code: 80 3c 20 00 74 08 4c 89 f7 e8 a3 fb 74 fe 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 2e e9 4d 7f ce 07 e8 f8 8c 11 fe 90 <0f> 0b e8 f0 8c 11 fe 90 0f 0b e8 e8 8c 11 fe 90 0f 0b e8 e0 8c 11
RSP: 0000:ffffc9000291daa8 EFLAGS: 00010293
RAX: ffffffff83ae2118 RBX: ffff888037040830 RCX: ffff888107d05640
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8fa39037 R09: 1ffffffff1f47206
R10: dffffc0000000000 R11: fffffbfff1f47207 R12: 1ffff92000523b88
R13: dffffc0000000000 R14: ffff8881035f7828 R15: ffff8881035f7828
FS:  00007fe9c10146c0(0000) GS:ffff8881a3c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9b5e7f000 CR3: 000000010b448000 CR4: 00000000000006f0
