[gnutls-devel] GnuTLS | Fix coverity in lib/ (!1092)

Development of GNU's TLS library gnutls-devel at lists.gnutls.org
Fri Oct 11 21:12:40 CEST 2019

Tim Rühsen commented on a discussion on lib/x509/x509.c: https://gitlab.com/gnutls/gnutls/merge_requests/1092#note_229519797

>  		goto cleanup;
>  	}
> -	if (othername_oid && type == GNUTLS_SAN_OTHERNAME) {
> +	/* ooid.data is only set if type == GNUTLS_SAN_OTHERNAME.
> +	 * We check ooid.data here instead of type to avoid false positives from
> +	 * static analyzers. See Coverity issue #1361513. */
> +	if (othername_oid && ooid.data) {

ooid.data is only set under certain conditions in gnutls_subject_alt_names_get(). So I think (and Coverity also does) that checking ooid.data instead of type == GNUTLS_SAN_OTHERNAME is the better approach.

Of course, we can check both if that makes reading and understanding easier.

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