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| author | Guillaume Chatelet <gchatelet@google.com> | 2021-10-26 16:58:42 +0300 |
|---|---|---|
| committer | Guillaume Chatelet <gchatelet@google.com> | 2021-10-26 16:58:42 +0300 |
| commit | 7bd206a75f217da5d53b18f71a44540146a2f1ff (patch) | |
| tree | 1bee56e8e28bfb7221e223634dc977cda966ad8d | |
| parent | 55ac9f0556ddcfff1a3a311b756d54e01e9b0938 (diff) | |
Fix memory overflow
Duplicate of #190
| -rw-r--r-- | src/cpuinfo_x86.c | 4 |
1 files changed, 3 insertions, 1 deletions
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; |