From 57f63f4c9dae73997ff93e940c608c7f0cc77664 Mon Sep 17 00:00:00 2001
From: Ulrich Sibiller <uli42@gmx.de>
Date: Fri, 31 May 2019 21:22:03 +0200
Subject: [PATCH] NXrender.c: fix possible memory leak

---
 nx-X11/programs/Xserver/hw/nxagent/NXrender.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXrender.c b/nx-X11/programs/Xserver/hw/nxagent/NXrender.c
index 79dd18c2ce..093dc33df4 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/NXrender.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/NXrender.c
@@ -741,7 +741,8 @@ ProcRenderTrapezoids (ClientPtr client)
     {
       if (pFormat != NULL)
       {
-	/* FIXME: free if != NullBox? */
+	if (nxagentTrapezoidExtents && nxagentTrapezoidExtents != NullBox)
+	  free(nxagentTrapezoidExtents);
         nxagentTrapezoidExtents = (BoxPtr) malloc(sizeof(BoxRec));
         miTrapezoidBounds (ntraps, (xTrapezoid *) &stuff[1], nxagentTrapezoidExtents);
       }