Avoid a bad out of bounds access that caused intermittent crashes.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/regress/lib/libcrypto/wycheproof/wycheproof.go b/src/regress/lib/libcrypto/wycheproof/wycheproof.go
index ff15d30962..a4360d2904 100644
--- a/src/regress/lib/libcrypto/wycheproof/wycheproof.go
+++ b/src/regress/lib/libcrypto/wycheproof/wycheproof.go
@@ -1,4 +1,4 @@
-/* $OpenBSD: wycheproof.go,v 1.81 2018/10/07 04:40:14 tb Exp $ */
+/* $OpenBSD: wycheproof.go,v 1.82 2018/10/18 21:30:05 tb Exp $ */
 /*
  * Copyright (c) 2018 Joel Sing <jsing@openbsd.org>
  * Copyright (c) 2018 Theo Buehler <tb@openbsd.org>
@@ -1698,7 +1698,7 @@ func runRSASSATest(rsa *C.RSA, h hash.Hash, sha *C.EVP_MD, mgfSha *C.EVP_MD, sLe
                 sig = append(sig, 0)
         }
 
-        sigOut := make([]byte, sigLen)
+        sigOut := make([]byte, C.RSA_size(rsa) - 11)
         if sigLen == 0 {
                 sigOut = append(sigOut, 0)
         }