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Prevent intel_fn11 array overruns

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First check whether we are past the array, only
then read and check its values.
This commit is contained in:
Pavol Žáčik 2024-05-23 10:19:14 +02:00 committed by The Tumultuous Unicorn Of Darkness
parent 550efe1a32
commit 381b3352c6
1 changed files with 1 additions and 1 deletions
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2
libcpuid/recog_intel.c
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@ -721,7 +721,7 @@ static int decode_intel_extended_topology(struct cpu_raw_data_t* raw, struct cpu
{
int i, level_type, num_smt = -1, num_core = -1;
for (i = 0; (raw->intel_fn11[i][EAX] != 0x0) && (raw->intel_fn11[i][EBX] != 0x0) && (i < MAX_INTELFN11_LEVEL); i++) {
for (i = 0; (i < MAX_INTELFN11_LEVEL) && (raw->intel_fn11[i][EAX] != 0x0) && (raw->intel_fn11[i][EBX] != 0x0); i++) {
level_type = EXTRACTS_BITS(raw->intel_fn11[i][ECX], 15, 8);
switch (level_type) {
case 0x01: