File U_xwayland-default-to-local-user-if-no-xauth-file-given.patch of Package xorg-x11-server.4651

Subject: xwayland: default to local user if no xauth file given.
Author: Ray Strode <rstrode@redhat.com>
Path-mainline: Upstream
Git-commit: 76636ac12f2d1dbdf7be08222f80e7505d53c451
References: bnc#934102 CVE-2015-3164
Signed-off-by: Michal Srb <msrb@suse.com>

Right now if "-auth" isn't passed on the command line, we let
any user on the system connect to the Xwayland server.

That's clearly suboptimal, given Xwayland is generally designed
to be used by one user at a time.

This commit changes the behavior, so only the user who started the
X server can connect clients to it.

Signed-off-by: Ray Strode <rstrode@redhat.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/hw/xwayland/xwayland.c b/hw/xwayland/xwayland.c
index c5bee77..bc92beb 100644
--- a/hw/xwayland/xwayland.c
+++ b/hw/xwayland/xwayland.c
@@ -702,4 +702,6 @@ InitOutput(ScreenInfo * screen_info, int argc, char **argv)
     if (AddScreen(xwl_screen_init, argc, argv) == -1) {
         FatalError("Couldn't add screen\n");
     }
+
+    LocalAccessScopeUser();
 }