diff -rupN mod_nss-1.0.8.orig/nss_engine_io.c mod_nss-1.0.8.patched/nss_engine_io.c
--- mod_nss-1.0.8.orig/nss_engine_io.c	2013-11-12 13:46:32.000000000 -0800
+++ mod_nss-1.0.8.patched/nss_engine_io.c	2013-11-12 14:01:15.000000000 -0800
@@ -1354,14 +1354,11 @@ nss_AuthCertificate(void *arg, PRFileDes
                   PRBool checksig, PRBool isServer)
 {
     SECStatus           status;
-    nss_filter_ctx_t   *filter_ctx;
 
     if (!arg || !socket) {
         return SECFailure;
     }
 
-    filter_ctx = (nss_filter_ctx_t *)(socket->lower->secret);
-
     status = SSL_AuthCertificate(arg, socket, checksig, isServer);
 
     /* The certificate is copied to sslconn->client_cert in