From 10bcb661c27a507df0a04d89c2c4dac6fb43236a Mon Sep 17 00:00:00 2001
From: caheckman <48068198+caheckman@users.noreply.github.com>
Date: Fri, 4 Oct 2019 15:21:57 -0400
Subject: [PATCH] patch for stride overflow

---
 Ghidra/Features/Decompiler/src/decompile/cpp/jumptable.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Ghidra/Features/Decompiler/src/decompile/cpp/jumptable.cc b/Ghidra/Features/Decompiler/src/decompile/cpp/jumptable.cc
index 76d68ea210..d1af1a4d67 100644
--- a/Ghidra/Features/Decompiler/src/decompile/cpp/jumptable.cc
+++ b/Ghidra/Features/Decompiler/src/decompile/cpp/jumptable.cc
@@ -419,12 +419,13 @@ int4 JumpBasic::getStride(Varnode *vn)
 
 {
   uintb mask = vn->getNZMask();
+  if ((mask & 0x3f)==0)		// Limit the maximum stride we can return
+    return 32;
   int4 stride = 1;
   while((mask&1)==0) {
     mask >>= 1;
     stride <<= 1;
   }
-  if (stride > 32) return 1;
   return stride;
 }