johann/cpu_features
1
0
Fork 0
mirror of https://github.com/google/cpu_features.git synced 2025-04-28 07:23:37 +02:00
Code Issues Releases Wiki Activity

Fix memory overflow

Browse Source 
Duplicate of #190
This commit is contained in:
Guillaume Chatelet 2021-10-26 13:58:42 +00:00
parent 55ac9f0556
commit 7bd206a75f
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/cpuinfo_x86.c
View File

@ -1152,7 +1152,9 @@ static void ParseLeaf2(const int max_cpuid_leaf, CacheInfo* info) {
// For newer AMD CPUs uses "CPUID, eax=0x8000001D" // For newer AMD CPUs uses "CPUID, eax=0x8000001D"
static void ParseCacheInfo(const int max_cpuid_leaf, uint32_t leaf_id, static void ParseCacheInfo(const int max_cpuid_leaf, uint32_t leaf_id,
CacheInfo* info) { 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); const Leaf leaf = SafeCpuIdEx(max_cpuid_leaf, leaf_id, cache_id);
CacheType cache_type = ExtractBitRange(leaf.eax, 4, 0); CacheType cache_type = ExtractBitRange(leaf.eax, 4, 0);
if (cache_type == CPU_FEATURE_CACHE_NULL) continue; if (cache_type == CPU_FEATURE_CACHE_NULL) continue;