Fix possible free-memory ref in e75069f79a

2026-11-03 13:38:32 +00:00 · 2021-01-24 22:25:13 +00:00
1 changed files with 4 additions and 1 deletions
@@ -36,8 +36,11 @@ static unsigned char *digest;

 void hash_questions_init(void)
 {
-  if (!(hash = hash_find("sha256")) || !hash_init(hash, &ctx, &digest))
+  if (!(hash = hash_find("sha256")))
    die(_("Failed to create SHA-256 hash object"), NULL, EC_MISC);
+
+  ctx = safe_malloc(hash->context_size);
+  digest = safe_malloc(hash->digest_size);
 }

 unsigned char *hash_questions(struct dns_header *header, size_t plen, char *name)