pushValue(TSQueryParserState state, char *strval, int lenval, int16 weight, bool prefix)
{
	pg_crc32	valcrc;

	if (lenval >= MAXSTRLEN)
		ereport(ERROR,
				(errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
				 errmsg("word is too long in tsquery: \"%s\"",
						state->buffer)));

	INIT_CRC32(valcrc);
	COMP_CRC32(valcrc, strval, lenval);
	FIN_CRC32(valcrc);
	pushValue_internal(state, valcrc, state->curop - state->op, lenval, weight, prefix);

	/* append the value string to state.op, enlarging buffer if needed first */
	while (state->curop - state->op + lenval + 1 >= state->lenop)
	{
		int			used = state->curop - state->op;

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

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