[gnutls-devel] GnuTLS | build: avoid potential integer overflow in array allocation (!1392)

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Daiki Ueno commented on a discussion on lib/cert-cred.c: https://gitlab.com/gnutls/gnutls/-/merge_requests/1392#note_518822155

>  				       int nr)
>  {
> -	res->sorted_cert_idx = gnutls_realloc_fast(res->sorted_cert_idx,
> -						(1 + res->ncerts) *
> -						sizeof(unsigned int));
> +	res->sorted_cert_idx = _gnutls_reallocarray_fast(res->sorted_cert_idx,
> +							 1 + res->ncerts,
> +							 sizeof(unsigned int));
>  	if (res->sorted_cert_idx == NULL)
>  		return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
>  
> -	res->certs = gnutls_realloc_fast(res->certs,
> -					 (1 + res->ncerts) *
> -					 sizeof(certs_st));
> +	res->certs = _gnutls_reallocarray_fast(res->certs,
> +					       1 + res->ncerts,

The follow-up change actually makes it consistent with the latter style.

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