ensure aligned memory in corruption detector

1 files changed, 1 insertions, 0 deletions

diff --git a/src/corruptionCheck.js b/src/corruptionCheck.js
index 9c8794cd..ae2a0bdf 100644
--- a/src/corruptionCheck.js
+++ b/src/corruptionCheck.js
@@ -21,6 +21,7 @@ var CorruptionChecker = {
   malloc: function(size) {
     CorruptionChecker.checkAll();
     assert(size > 0); // some mallocs accept zero - fix your code if you want to use this tool
+    size = (size+7)&(~7);
     var allocation = CorruptionChecker.realMalloc(size*(1+2*CorruptionChecker.BUFFER_FACTOR));
     var ptr = allocation + size*CorruptionChecker.BUFFER_FACTOR;
     assert(!CorruptionChecker.ptrs[ptr]);