Fix perms when linking an object. Set root part perms to the perms

of the link set to make the build floater behave consistently.
Fixes permissions exploit introduced on 23 August.

1 files changed, 14 insertions, 14 deletions

diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index c2d4764..3274cbd 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -4497,20 +4497,20 @@ namespace OpenSim.Region.Framework.Scenes
         {
             bool update = false;
 
-            if (BaseMask != source.BaseMask ||
-                OwnerMask != source.OwnerMask ||
-                GroupMask != source.GroupMask ||
-                EveryoneMask != source.EveryoneMask ||
-                NextOwnerMask != source.NextOwnerMask)
-                update = true;
-
-            BaseMask = source.BaseMask;
-            OwnerMask = source.OwnerMask;
-            GroupMask = source.GroupMask;
-            EveryoneMask = source.EveryoneMask;
-            NextOwnerMask = source.NextOwnerMask;
-
-            if (update)
+            uint prevOwnerMask = OwnerMask;
+            uint prevGroupMask = GroupMask;
+            uint prevEveryoneMask = EveryoneMask;
+            uint prevNextOwnerMask = NextOwnerMask;
+
+            OwnerMask = source.OwnerMask & BaseMask;
+            GroupMask = source.GroupMask & BaseMask;
+            EveryoneMask = source.EveryoneMask & BaseMask;
+            NextOwnerMask = source.NextOwnerMask & BaseMask;
+
+            if (OwnerMask != prevOwnerMask ||
+                GroupMask != prevGroupMask ||
+                EveryoneMask != prevEveryoneMask ||
+                NextOwnerMask != prevNextOwnerMask)
                 SendFullUpdateToAllClients();
         }