From 41b198d29dad98dd19d46818a83cd717cdfb7411 Mon Sep 17 00:00:00 2001
From: "Jay Freeman (saurik)" <saurik@saurik.com>
Date: Mon, 30 Jan 2017 19:53:18 -0800
Subject: It is NOT OK to just munmap memory from malloc :/.

---
 apt-pkg/contrib/mmap.cc | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'apt-pkg/contrib')

diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc
index cea9ec1ee..a6414e530 100644
--- a/apt-pkg/contrib/mmap.cc
+++ b/apt-pkg/contrib/mmap.cc
@@ -305,10 +305,11 @@ DynamicMMap::~DynamicMMap()
       if (validData() == false)
 	 return;
 #ifdef _POSIX_MAPPED_FILES
-      munmap(Base, WorkSpace);
-#else
-      free(Base);
+      if ((Flags & Fallback) != Fallback) {
+         munmap(Base, WorkSpace);
+      } else
 #endif
+      free(Base);
       return;
    }
    
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