[Security] Fix memory leak in libgd

jano · fredemmott · commit c5efa1557cb4 · 2018-01-11T09:01:18.000-08:00
Summary:
Applies php-src commit 1cb2079d6c54cb383937880f1eae78975e1a757d that fixes a
memory leak in libgd.

Reviewed By: alexeyt

Differential Revision: D6681554

fbshipit-source-id: 3580cb33d97968bc976a68f8bfb2a693f95d19ce
diff --git a/hphp/runtime/ext/gd/libgd/wbmp.cpp b/hphp/runtime/ext/gd/libgd/wbmp.cpp
@@ -164,7 +164,10 @@ readwbmp (int (*getin) (void *in), void *in, Wbmp ** return_wbmp)
     }
 
   if (skipheader (getin, in))
+  {
+    gdFree (wbmp);
     return (-1);
+  }
 
 
   wbmp->width = getmbi (getin, in);
