From 1329c29ecdb3a49d7b08270d793575ba71d81ddd Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Fri, 12 Sep 2014 10:32:23 -0600
Subject: [PATCH] ELF: Critical bugfix.. BSS was not being cleared

---
 binfmt/libelf/libelf_load.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/binfmt/libelf/libelf_load.c b/binfmt/libelf/libelf_load.c
index 75ecb30fc71..11d054a945f 100644
--- a/binfmt/libelf/libelf_load.c
+++ b/binfmt/libelf/libelf_load.c
@@ -43,6 +43,7 @@
 
 #include <stdint.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 #include <elf32.h>
 #include <assert.h>
@@ -200,6 +201,15 @@ static inline int elf_loadfile(FAR struct elf_loadinfo_s *loadinfo)
             }
         }
 
+      /* If there is no data in an allocated section, then the allocated
+       * section must be cleared.
+       */
+
+      else
+        {
+          memset(*pptr, 0, shdr->sh_size);
+        }
+
       /* Update sh_addr to point to copy in memory */
 
       bvdbg("%d. %08lx->%08lx\n", i,