From 3f7139d3aa7a30f9f60126647f71f43e4c2ddc80 Mon Sep 17 00:00:00 2001
From: tevador <tevador@gmail.com>
Date: Thu, 9 May 2019 08:29:42 +0200
Subject: [PATCH] Fixed a possibility of buffer overflow in Superscalar
 generator

---
 src/superscalar.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/superscalar.cpp b/src/superscalar.cpp
index a3130cb..012ff15 100644
--- a/src/superscalar.cpp
+++ b/src/superscalar.cpp
@@ -679,7 +679,7 @@ namespace randomx {
 
 				//if we have issued all macro-ops for the current RandomX instruction, create a new instruction
 				if (macroOpIndex >= currentInstruction.getInfo().getSize()) {
-					if (portsSaturated)
+					if (portsSaturated || programSize >= RANDOMX_SUPERSCALAR_MAX_SIZE)
 						break;
 					//select an instruction so that the first macro-op fits into the current slot
 					currentInstruction.createForSlot(gen, decodeBuffer->getCounts()[bufferIndex], decodeBuffer->getIndex(), decodeBuffer->getSize() == bufferIndex + 1, bufferIndex == 0);