Coverity 1508532: out of bounds access

Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Hugo Landau <hlandau@openssl.org> (Merged from #19033)
openssl · Aug 23, 2022 · eb7a5cc · eb7a5cc
1 parent 52f6169
commit eb7a5cc
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/crypto/dh/dh_pmeth.c b/crypto/dh/dh_pmeth.c
@@ -432,7 +432,8 @@ static int pkey_dh_derive(EVP_PKEY_CTX *ctx, unsigned char *key,
     else if (dctx->kdf_type == EVP_PKEY_DH_KDF_X9_42) {
 
         unsigned char *Z = NULL;
-        size_t Zlen = 0;
+        int Zlen = 0;
+
         if (!dctx->kdf_outlen || !dctx->kdf_oid)
             return 0;
         if (key == NULL) {