Stop extension creation code core dumping.

This was caused by no initialising the buffer
to NULL when using the auto allocating version
if i2d.

diff --git a/crypto/x509v3/v3_conf.c b/crypto/x509v3/v3_conf.c
index 909bc0a10a5eca66d02d8da98202c8da47bf2701..0890f898be2b8ebaa6c4ff46886948bfc9ac57d6 100644 (file)
--- a/crypto/x509v3/v3_conf.c
+++ b/crypto/x509v3/v3_conf.c
@@ -168,6 +168,7 @@ static X509_EXTENSION *do_ext_i2d(X509V3_EXT_METHOD *method, int ext_nid,
        X509_EXTENSION *ext;
        /* Convert internal representation to DER */
        if(method->it) {
+               ext_der = NULL;
                ext_len = ASN1_item_i2d(ext_struc, &ext_der, method->it);
                if(ext_len < 0) goto merr;
        } else {