Fix double free.

This double free involves damaging GHashTable internals (key and value).

Change-Id: I17c8a473b96ab28e611ccf79ddd2b3da56512184
Reviewed-on: https://code.wireshark.org/review/4629
Tested-by: Pascal Quantin <pascal.quantin@gmail.com>
Reviewed-by: Tomasz Moń <desowin@gmail.com>
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/extcap.c b/extcap.c
index c52eda6e34..403e5013fc 100644
--- a/extcap.c
+++ b/extcap.c
@@ -471,10 +471,10 @@ extcap_arg_cb(gpointer key, gpointer value, gpointer data) {
 
     if ( key != NULL )
     {
-        g_ptr_array_add(args, key);
+        g_ptr_array_add(args, g_strdup((const gchar*)key));
 
         if ( value != NULL )
-            g_ptr_array_add(args, value);
+            g_ptr_array_add(args, g_strdup((const gchar*)value));
     }
 }