rock: corrupted directory entry. extent=32, offset=2044, size=237
hrtimer: interrupt took 27618 ns
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 9592 at fs/overlayfs/dir.c:521 ovl_create_or_link+0xc0e/0x1200 fs/overlayfs/dir.c:521
Kernel panic - not syncing: kernel: panic_on_warn set ...

CPU: 1 PID: 9592 Comm: syz-executor.0 Not tainted 4.14.307-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x21d/0x451 kernel/panic.c:247
 check_panic_on_warn.cold+0x19/0x35 kernel/panic.c:171
 __warn+0xdf/0x1e0 kernel/panic.c:603
 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:967
RIP: 0010:ovl_create_or_link+0xc0e/0x1200 fs/overlayfs/dir.c:521
RSP: 0018:ffff8880412f7be0 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffff888046a8d548 RCX: ffffc90005cda000
RDX: 000000000000a8d4 RSI: ffffffff8231face RDI: ffff8880b1f9f0d8
RBP: ffff888046a8e3f0 R08: 0000000000000282 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 000000000000a16d R14: ffff888046a89350 R15: 1ffff1100825ef88
======================================================
WARNING: the mand mount option is being deprecated and
         will be removed in v5.15!
======================================================
F2FS-fs (loop2): invalid crc value
F2FS-fs (loop2): Found nat_bits in checkpoint
 ovl_link+0x14f/0x190 fs/overlayfs/dir.c:614
 vfs_link+0x6d5/0xb40 fs/namei.c:4266
F2FS-fs (loop2): sanity_check_inode: inode (ino=3) has corrupted i_extra_isize: 24, max: 12
 SYSC_linkat fs/namei.c:4334 [inline]
 SyS_linkat+0x3e5/0x6a0 fs/namei.c:4290
F2FS-fs (loop2): Failed to read root inode
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
F2FS-fs (loop2): invalid crc value
RIP: 0033:0x7f6098ad10f9
F2FS-fs (loop2): Found nat_bits in checkpoint
RSP: 002b:00007f6097043168 EFLAGS: 00000246
F2FS-fs (loop2): sanity_check_inode: inode (ino=3) has corrupted i_extra_isize: 24, max: 12
 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007f6098bf0f80 RCX: 00007f6098ad10f9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000020000440
RBP: 00007f6098b2cae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff91a8b4ff R14: 00007f6097043300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..