[gnome-keyring] [gp11] Fix double free with copied attributes.

[Stefan Walter <stefw src gnome org>]

commit 495468401abe79bde11a86aac19f38df150b7390
Author: Stef Walter <stef memberwebs com>
Date:   Fri Sep 10 04:49:46 2010 +0000

    [gp11] Fix double free with copied attributes.
    
    Copied attributes would result in a double free if length was zero.

 gp11/gp11-attributes.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gp11/gp11-attributes.c b/gp11/gp11-attributes.c
index 5e0b1b1..ecb781e 100644
--- a/gp11/gp11-attributes.c
+++ b/gp11/gp11-attributes.c
@@ -558,8 +558,8 @@ attribute_init_copy (GP11Attribute *dest, const GP11Attribute *src, GP11Allocato
 	 */
 
 	memcpy (dest, src, sizeof (GP11Attribute));
-	if (src->value && src->length) {
-		dest->value = (allocator) (NULL, src->length);
+	if (src->value) {
+		dest->value = (allocator) (NULL, src->length ? src->length : 1);
 		g_assert (dest->value);
 		memcpy (dest->value, src->value, src->length);
 	}