Fixed zero sized allocation.

diff --git a/libfreerdp/core/nego.c b/libfreerdp/core/nego.c
index a1716a4..3676a78 100644 (file)
--- a/libfreerdp/core/nego.c
+++ b/libfreerdp/core/nego.c
@@ -1257,6 +1257,9 @@ void nego_enable_ext(rdpNego* nego, BOOL enable_ext)
 
 BOOL nego_set_routing_token(rdpNego* nego, BYTE* RoutingToken, DWORD RoutingTokenLength)
 {
+       if (RoutingTokenLength == 0)
+               return FALSE;
+
        free(nego->RoutingToken);
        nego->RoutingTokenLength = RoutingTokenLength;
        nego->RoutingToken = (BYTE*) malloc(nego->RoutingTokenLength);