From 7bd206a75f217da5d53b18f71a44540146a2f1ff Mon Sep 17 00:00:00 2001
From: Guillaume Chatelet <gchatelet@google.com>
Date: Tue, 26 Oct 2021 13:58:42 +0000
Subject: [PATCH] Fix memory overflow Duplicate of #190

---
 src/cpuinfo_x86.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/cpuinfo_x86.c b/src/cpuinfo_x86.c
index ccbe4aa..7c3c6bd 100644
--- a/src/cpuinfo_x86.c
+++ b/src/cpuinfo_x86.c
@@ -1152,7 +1152,9 @@ static void ParseLeaf2(const int max_cpuid_leaf, CacheInfo* info) {
 // For newer AMD CPUs uses "CPUID, eax=0x8000001D"
 static void ParseCacheInfo(const int max_cpuid_leaf, uint32_t leaf_id,
                            CacheInfo* info) {
-  for (int cache_id = 0; cache_id < CPU_FEATURES_MAX_CACHE_LEVEL; cache_id++) {
+  for (int cache_id = 0; cache_id < CPU_FEATURES_MAX_CACHE_LEVEL &&
+                         info->size < CPU_FEATURES_MAX_CACHE_LEVEL;
+       cache_id++) {
     const Leaf leaf = SafeCpuIdEx(max_cpuid_leaf, leaf_id, cache_id);
     CacheType cache_type = ExtractBitRange(leaf.eax, 4, 0);
     if (cache_type == CPU_FEATURE_CACHE_NULL) continue;