1 files changed, 1 insertions, 3 deletions
diff --git a/crypto/asn1/x_x509.c b/crypto/asn1/x_x509.c
index 63c15e8830..e2cac83694 100644
--- a/crypto/asn1/x_x509.c
+++ b/crypto/asn1/x_x509.c
@@ -186,9 +186,7 @@ X509 *d2i_X509_AUX(X509 **a, const unsigned char **pp, long length)
         return NULL;
     /* update length */
     length -= q - *pp;
-    if (!length)
-        return ret;
-    if (!d2i_X509_CERT_AUX(&ret->aux, &q, length))
+    if (length > 0 && !d2i_X509_CERT_AUX(&ret->aux, &q, length))
         goto err;
     *pp = q;
     return ret;