bn_convert: plug leak spotted by ASAN

diff --git a/regress/lib/libcrypto/bn/bn_convert.c b/regress/lib/libcrypto/bn/bn_convert.c
index df69b78..c787036 100644 (file)
--- a/regress/lib/libcrypto/bn/bn_convert.c
+++ b/regress/lib/libcrypto/bn/bn_convert.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: bn_convert.c,v 1.4 2024/04/09 14:56:21 jsing Exp $ */
+/*     $OpenBSD: bn_convert.c,v 1.5 2024/04/09 16:06:01 tb Exp $ */
 /*
  * Copyright (c) 2023 Joel Sing <jsing@openbsd.org>
  *
@@ -482,7 +482,8 @@ test_bn_convert(void)
                }
 
                free(mpi_out);
-               
+               mpi_out = NULL;
+
                if ((mpi_len = BN_bn2mpi(bn, NULL)) != bct->mpi_len) {
                        fprintf(stderr, "FAIL: Test %zu - BN_bn2mpi() returned "
                            "%d, want %d", i, mpi_len, bct->mpi_len);
@@ -550,6 +551,7 @@ test_bn_convert(void)
        failed = 0;
 
  failure:
+       free(mpi_out);
        free(out_str);
        BN_free(bn);