From 9fb67ecaea741afe9ca59d4a8ba8b6428df76c99 Mon Sep 17 00:00:00 2001
From: Nekotekina <nekotekina@gmail.com>
Date: Sat, 1 Feb 2020 17:21:47 +0300
Subject: [PATCH] RuntimeDyld: workaround use-after-free bug (`Sections`)

Sections is SmallVector, and it grows sometimes, causing use-after-free bug somewhere.
---
 lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
index cec7b92b8c4..772116eca75 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
@@ -29,6 +29,7 @@
 #include <map>
 #include <system_error>
 #include <unordered_map>
+#include <deque>
 
 using namespace llvm;
 using namespace llvm::object;
@@ -251,7 +252,7 @@ protected:
 
   // A list of all sections emitted by the dynamic linker.  These sections are
   // referenced in the code by means of their index in this list - SectionID.
-  typedef SmallVector<SectionEntry, 64> SectionList;
+  typedef std::deque<SectionEntry> SectionList;
   SectionList Sections;
 
   typedef unsigned SID; // Type for SectionIDs