pushval_asis(QPRS_STATE *state, int type, char *strval, int lenval, uint16 flag)
{
	if (lenval > 0xffff)
		ereport(ERROR,
				(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
				 errmsg("word is too long")));

	pushquery(state, type, ltree_crc32_sz(strval, lenval),
			  state->curop - state->op, lenval, flag);

	while (state->curop - state->op + lenval + 1 >= state->lenop)
	{
		int32		tmp = state->curop - state->op;

		state->lenop *= 2;
		state->op = (char *) repalloc((void *) state->op, state->lenop);
		state->curop = state->op + tmp;
	}
	memcpy((void *) state->curop, (void *) strval, lenval);
	state->curop += lenval;
	*(state->curop) = '\0';
	state->curop++;
	state->sumlen += lenval + 1;
	return;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.