From ac5f2b98e7ce63db87325ea600327d05dd0cc56c Mon Sep 17 00:00:00 2001
From: Daniel Pouzzner <douzzer@wolfssl.com>
Date: Sat, 27 Jun 2026 14:41:44 -0500
Subject: [PATCH] wolfcrypt/src/wc_slhdsa.c: * disable asm accelerations if
 WC_SHA3_NO_ASM is set. * fix an uninited-data warning in
 slhdsakey_wots_pkgen_chain_c().

---
 wolfcrypt/src/wc_slhdsa.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/wolfcrypt/src/wc_slhdsa.c b/wolfcrypt/src/wc_slhdsa.c
index 7dd6a71753..4d24d5ff96 100644
--- a/wolfcrypt/src/wc_slhdsa.c
+++ b/wolfcrypt/src/wc_slhdsa.c
@@ -49,7 +49,7 @@
     #include <wolfssl/wolfcrypt/hmac.h>
 #endif
 
-#ifdef WC_SLHDSA_NO_ASM
+#if defined(WC_SLHDSA_NO_ASM) || defined(WC_SHA3_NO_ASM)
     #undef USE_INTEL_SPEEDUP
     #undef WOLFSSL_ARMASM
     #undef WOLFSSL_RISCV_ASM
@@ -3283,6 +3283,8 @@ static int slhdsakey_wots_pkgen_chain_c(SlhDsaKey* key, const byte* sk_seed,
 
     WC_ALLOC_VAR_EX(sk, byte, (SLHDSA_MAX_MSG_SZ + 3) * SLHDSA_MAX_N,
         key->heap, DYNAMIC_TYPE_SLHDSA, ret = MEMORY_E);
+    if (ret == 0)
+        XMEMSET(sk, 0, (SLHDSA_MAX_MSG_SZ + 3) * SLHDSA_MAX_N);
     if (ret == 0) {
         /* Step 4. len consecutive addresses. */
         for (i = 0; i < len; i++) {