diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_suppressions.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_suppressions.cpp
--- a/compiler-rt/lib/sanitizer_common/sanitizer_suppressions.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_suppressions.cpp
@@ -86,6 +86,7 @@
   }
 
   Parse(file_contents);
+  UnmapOrDie(file_contents, contents_size);
 }
 
 bool SuppressionContext::Match(const char *str, const char *type,