diff --git a/lib/gssapi/mech/gss_utils.c b/lib/gssapi/mech/gss_utils.c
index 05a641c39..6e05acff0 100644
--- a/lib/gssapi/mech/gss_utils.c
+++ b/lib/gssapi/mech/gss_utils.c
@@ -38,6 +38,7 @@ _gss_copy_oid(OM_uint32 *minor_status,
 	*minor_status = 0;
 	to_oid->elements = malloc(len);
 	if (!to_oid->elements) {
+		to_oid->length = 0;
 		*minor_status = ENOMEM;
 		return GSS_S_FAILURE;
 	}
@@ -68,6 +69,7 @@ _gss_copy_buffer(OM_uint32 *minor_status,
 	to_buf->value = malloc(len);
 	if (!to_buf->value) {
 		*minor_status = ENOMEM;
+		to_buf->length = 0;
 		return GSS_S_FAILURE;
 	}
 	to_buf->length = len;
diff --git a/lib/gssapi/mech/gss_verify_mic.c b/lib/gssapi/mech/gss_verify_mic.c
index 70ddb78f3..456aa1cde 100644
--- a/lib/gssapi/mech/gss_verify_mic.c
+++ b/lib/gssapi/mech/gss_verify_mic.c
@@ -39,6 +39,8 @@ gss_verify_mic(OM_uint32 *minor_status,
 	struct _gss_context *ctx = (struct _gss_context *) context_handle;
 	gssapi_mech_interface m = ctx->gc_mech;
 
+	if (qop_state)
+	    *qop_state = 0;
 	if (ctx == NULL) {
 	    *minor_status = 0;
 	    return GSS_S_NO_CONTEXT;
diff --git a/lib/gssapi/mech/gss_wrap.c b/lib/gssapi/mech/gss_wrap.c
index 625ab70d9..2f64fb559 100644
--- a/lib/gssapi/mech/gss_wrap.c
+++ b/lib/gssapi/mech/gss_wrap.c
@@ -41,6 +41,14 @@ gss_wrap(OM_uint32 *minor_status,
 	struct _gss_context *ctx = (struct _gss_context *) context_handle;
 	gssapi_mech_interface m = ctx->gc_mech;
 
+	if (conf_state)
+	    *conf_state = 0;
+	_mg_buffer_zero(output_message_buffer);
+	if (ctx == NULL) {
+	    *minor_status = 0;
+	    return GSS_S_NO_CONTEXT;
+	}
+
 	return (m->gm_wrap(minor_status, ctx->gc_ctx,
 		    conf_req_flag, qop_req, input_message_buffer,
 		    conf_state, output_message_buffer));
diff --git a/lib/gssapi/mech/gss_wrap_size_limit.c b/lib/gssapi/mech/gss_wrap_size_limit.c
index 7b791f50b..894f92b56 100644
--- a/lib/gssapi/mech/gss_wrap_size_limit.c
+++ b/lib/gssapi/mech/gss_wrap_size_limit.c
@@ -39,6 +39,12 @@ gss_wrap_size_limit(OM_uint32 *minor_status,
 {
 	struct _gss_context *ctx = (struct _gss_context *) context_handle;
 	gssapi_mech_interface m = ctx->gc_mech;
+	
+	*max_input_size = 0;
+	if (ctx == NULL) {
+	    *minor_status = 0;
+	    return GSS_S_NO_CONTEXT;
+	}
 
 	return (m->gm_wrap_size_limit(minor_status, ctx->gc_ctx,
 		    conf_req_flag, qop_req, req_output_size, max_input_size));