------------[ cut here ]------------
WARNING: CPU: 1 PID: 11165 at fs/udf/truncate.c:226 udf_truncate_extents+0x725/0x840 fs/udf/truncate.c:226
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 11165 Comm: syz-executor.3 Not tainted 4.14.269-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
overlayfs: missing 'lowerdir'
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
overlayfs: unrecognized mount option "logerdIg��R] KM�d�N@늏�o��̍P�gS8:2�z�^�y�O�;m�x{>[þ��^��i�C�.z�u�
3�K��WM{�Jʘ��+Wu�YF}w�Ł�Z�eS$g'�S" or missing value
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
 __warn.cold+0x20/0x44 kernel/panic.c:547
 report_bug+0x208/0x250 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:udf_truncate_extents+0x725/0x840 fs/udf/truncate.c:226
RSP: 0018:ffff888096b1f9b0 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff8880903984a0 RCX: ffffc9000821b000
RDX: 0000000000040000 RSI: ffffffff82371e45 RDI: ffff8880903983a8
RBP: ffff888096b1fa98 R08: 00000000000000ff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888096b1fa58
R13: 0000000000000200 R14: ffff888096b1fa28 R15: ffff888050c32140
 udf_write_failed.isra.0+0x151/0x1a0 fs/udf/inode.c:172
 udf_write_begin+0x7f/0xa0 fs/udf/inode.c:208
 generic_perform_write+0x1c9/0x420 mm/filemap.c:3055
 __generic_file_write_iter+0x227/0x590 mm/filemap.c:3180
 udf_file_write_iter+0x284/0x470 fs/udf/file.c:169
 call_write_iter include/linux/fs.h:1780 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x44c/0x630 fs/read_write.c:482
 vfs_write+0x17f/0x4d0 fs/read_write.c:544
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xf2/0x210 fs/read_write.c:582
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f3278953049
RSP: 002b:00007f32772c8168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3278a65f60 RCX: 00007f3278953049
RDX: 00000000175d900f RSI: 0000000020000200 RDI: 0000000000000006
RBP: 00007f32789ad08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd2753235f R14: 00007f32772c8300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..