From 63976cb09b94a29b3436bc852cc6b99ae6d83819 Mon Sep 17 00:00:00 2001
From: Kareem <kareem@wolfssl.com>
Date: Wed, 10 Dec 2025 12:28:54 -0700
Subject: [PATCH] Fix uninitialized variable, use WOLFSSL_DEBUG_PRINTF macro in
 Hash_DRBG_Generate to avoid undefined printf reference.

---
 src/internal.c         | 2 +-
 wolfcrypt/src/random.c | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/internal.c b/src/internal.c
index 8c0085638..2a7ae4a6f 100644
--- a/src/internal.c
+++ b/src/internal.c
@@ -33360,7 +33360,7 @@ static int AddPSKtoPreMasterSecret(WOLFSSL* ssl)
 static void MakePSKPreMasterSecret(Arrays* arrays, byte use_psk_key)
 {
     byte* pms = arrays->preMasterSecret;
-    word16 sz;
+    word16 sz = 0;
 
     /* sz + (use_psk_key ? sz 0s : sz unaltered) + length of psk + psk */
     if (!use_psk_key) {
diff --git a/wolfcrypt/src/random.c b/wolfcrypt/src/random.c
index 0985b4d20..ba8192e04 100644
--- a/wolfcrypt/src/random.c
+++ b/wolfcrypt/src/random.c
@@ -631,9 +631,10 @@ static int Hash_DRBG_Generate(DRBG_internal* drbg, byte* out, word32 outSz)
     }
 
     if (drbg->reseedCtr >= WC_RESEED_INTERVAL) {
-    #if defined(DEBUG_WOLFSSL) || defined(DEBUG_DRBG_RESEEDS)
-        printf("DRBG reseed triggered, reseedCtr == %lu",
-               (unsigned long)drbg->reseedCtr);
+    #if (defined(DEBUG_WOLFSSL) || defined(DEBUG_DRBG_RESEEDS)) && \
+        defined(WOLFSSL_DEBUG_PRINTF)
+        WOLFSSL_DEBUG_PRINTF("DRBG reseed triggered, reseedCtr == %lu",
+                (unsigned long)drbg->reseedCtr);
     #endif
         return DRBG_NEED_RESEED;
     }