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, 7 insertions, 0 deletions

diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index 9dd6639..053bfb4 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -3410,11 +3410,18 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void AdjustChildPrimPermissions()
         {
+            uint newOwnerMask = (uint)PermissionMask.All & 0xfffffff8; // Mask folded bits
+            uint foldedPerms = RootPart.OwnerMask & 3;
+
             ForEachPart(part =>
             {
+                newOwnerMask &= part.BaseMask;
                 if (part != RootPart)
                     part.ClonePermissions(RootPart);
             });
+
+            RootPart.OwnerMask = newOwnerMask | foldedPerms;
+            RootPart.ScheduleFullUpdate();
         }
 
         public void UpdatePermissions(UUID AgentID, byte field, uint localID,