From: Julian Andres Klode <jak@debian.org>
Date: Sat, 16 Jun 2012 12:38:09 +0000 (+0200)
Subject: Zero out the new memory allocated with realloc().
X-Git-Tag: 0.9.7~3
X-Git-Url: https://git.saurik.com/apt.git/commitdiff_plain/61a406f0fc9c7b1807acb2ff146db6acd18e879c

Zero out the new memory allocated with realloc().
---

diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc
index 131cefd6e..77b4502f5 100644
--- a/apt-pkg/contrib/mmap.cc
+++ b/apt-pkg/contrib/mmap.cc
@@ -461,6 +461,8 @@ bool DynamicMMap::Grow() {
 			return false;
 
 		Base = realloc(Base, newSize);
+		/* Set new memory to 0 */
+		memset((char*)Base + WorkSpace, 0, newSize - WorkSpace);
 		if (Base == NULL)
 			return false;
 	}
diff --git a/debian/changelog b/debian/changelog
index 2050cb05a..1cdfbe61d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,6 +4,7 @@ apt (0.9.7) UNRELEASED; urgency=low
     - Fix the Fallback option to work correctly, by not calling
       realloc() on a map mapped by mmap(), and by using malloc
       and friends instead of new[].
+    - Zero out the new memory allocated with realloc().
 
  -- Julian Andres Klode <jak@debian.org>  Sat, 16 Jun 2012 14:28:38 +0200