Index: openssl-3.5.0/crypto/bn/bn_exp.c
===================================================================
--- openssl-3.5.0.orig/crypto/bn/bn_exp.c
+++ openssl-3.5.0/crypto/bn/bn_exp.c
@@ -166,6 +166,20 @@ int BN_mod_exp(BIGNUM *r, const BIGNUM *
     return ret;
 }
 
+/* As per limitations of C, the compiler cannot determine statically that in the
+ * case of BN_RECP_CTX_free, the BN_RECP_CTX.flag will not have a value of
+ * BN_FLG_MALLOCED, thus we hit a warning (-Wfree-nonheap-object) in
+ * BN_mod_exp_recp. Fix that by omiting the check for BN_FLG_MALLOCED.
+ */
+void BN_RECP_CTX_free_static(BN_RECP_CTX *recp)
+{
+    if (recp == NULL)
+        return;
+
+    BN_free(&recp->N);
+    BN_free(&recp->Nr);
+}
+
 int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
                     const BIGNUM *m, BN_CTX *ctx)
 {
@@ -304,7 +318,7 @@ int BN_mod_exp_recp(BIGNUM *r, const BIG
     ret = 1;
  err:
     BN_CTX_end(ctx);
-    BN_RECP_CTX_free(&recp);
+    BN_RECP_CTX_free_static(&recp);
     bn_check_top(r);
     return ret;
 }