From 1548d82560b242579f5ba216b66bd59ccd0f3fd0 Mon Sep 17 00:00:00 2001
From: Stef Walter <stef@thewalter.net>
Date: Wed, 17 Jul 2013 18:55:38 +0200
Subject: Don't call memdup with zero length or NULL pointer

https://bugzilla.redhat.com/show_bug.cgi?id=985433
---
 p11-kit/pin.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'p11-kit')

diff --git a/p11-kit/pin.c b/p11-kit/pin.c
index 60571de..2fca6bc 100644
--- a/p11-kit/pin.c
+++ b/p11-kit/pin.c
@@ -357,7 +357,7 @@ p11_kit_pin_request (const char *pin_source,
 			if (callbacks == NULL)
 				callbacks = p11_dict_get (gl.pin_sources, P11_KIT_PIN_FALLBACK);
 
-			if (callbacks != NULL) {
+			if (callbacks != NULL && callbacks->num) {
 				snapshot = memdup (callbacks->elem, sizeof (void *) * callbacks->num);
 				snapshot_count = callbacks->num;
 				for (i = 0; snapshot && i < snapshot_count; i++)
-- 
cgit v1.1