From f7dcf14f689ca3426f37d82f742adb3a20d5e79c Mon Sep 17 00:00:00 2001
From: Hideki Miyazaki <hide@wolfssl.com>
Date: Wed, 18 Mar 2026 06:52:59 +0900
Subject: [PATCH] fix f-637, potential doulbe-free

---
 src/sign-verify/clu_sign.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/sign-verify/clu_sign.c b/src/sign-verify/clu_sign.c
index 5a1fb93..6bf887e 100644
--- a/src/sign-verify/clu_sign.c
+++ b/src/sign-verify/clu_sign.c
@@ -703,7 +703,6 @@ int wolfCLU_sign_data_dilithium (byte* data, char* out, word32 dataSz, char* pri
     outBufSz = wc_dilithium_sig_size(key);
     outBuf = (byte*)XMALLOC(outBufSz, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
     if (outBuf == NULL) {
-        XFREE(privBuf, HEAP_HINT, DYNAMIC_TYPE_TMP_BUFFER);
         wc_FreeRng(&rng);
         wc_dilithium_free(key);
     #ifdef WOLFSSL_SMALL_STACK