crypto_ex_data: fix allocation size of classes_new

classes_new is an array of pointers to struct crypto_ex_data, not
an array of struct crypto_ex_data_index, so this overallocated by
240 or 480 bytes on ILP32 or LP64, respectively.

found by jsg using smatch
ok jsing

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libcrypto/crypto_ex_data.c b/src/lib/libcrypto/crypto_ex_data.c
index ceb3a92e51..b195bbd223 100644
--- a/src/lib/libcrypto/crypto_ex_data.c
+++ b/src/lib/libcrypto/crypto_ex_data.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: crypto_ex_data.c,v 1.4 2024/08/03 07:45:26 tb Exp $ */
+/* $OpenBSD: crypto_ex_data.c,v 1.5 2025/06/07 04:37:01 tb Exp $ */
 /*
  * Copyright (c) 2023 Joel Sing <jsing@openbsd.org>
  *
@@ -52,7 +52,7 @@ crypto_ex_data_classes_init(void)
                 return 1;
 
         if ((classes_new = calloc(CRYPTO_EX_INDEX__COUNT,
-            sizeof(struct crypto_ex_data_index))) == NULL)
+            sizeof(*classes_new))) == NULL)
                 return 0;
 
         CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);