tpm2: check pcr value hash != 0 before looking up hash algorithm name

2023-08-24 12:33:26 -04:00
parent 495f2bf57c
commit 8e757259c3
1 changed files with 1 additions and 1 deletions
@@ -1763,7 +1763,7 @@ char *tpm2_pcr_value_to_string(const Tpm2PCRValue *pcr_value) {
        if (asprintf(&index, "%u", pcr_value->index) < 0)
                return NULL;

-        const char *hash = tpm2_hash_alg_to_string(pcr_value->hash);
+        const char *hash = pcr_value->hash > 0 ? tpm2_hash_alg_to_string(pcr_value->hash) : NULL;

        if (hash && pcr_value->value.size > 0) {
                value = hexmem(pcr_value->value.buffer, pcr_value->value.size);