Free memory before assign to avoid leak

CID 313263 313301 313322

diff --git a/usr.bin/openssl/cms.c b/usr.bin/openssl/cms.c
index 9e955cf..79728e0 100644 (file)
--- a/usr.bin/openssl/cms.c
+++ b/usr.bin/openssl/cms.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: cms.c,v 1.26 2022/01/06 11:46:05 inoguchi Exp $ */
+/* $OpenBSD: cms.c,v 1.27 2022/01/06 12:54:51 inoguchi Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project.
  */
@@ -209,6 +209,8 @@ cms_opt_cipher(int argc, char **argv, int *argsused)
 static int
 cms_opt_econtent_type(char *arg)
 {
+       ASN1_OBJECT_free(cms_config.econtent_type);
+
        if ((cms_config.econtent_type = OBJ_txt2obj(arg, 0)) == NULL) {
                BIO_printf(bio_err, "Invalid OID %s\n", arg);
                return (1);
@@ -377,6 +379,8 @@ cms_opt_secretkey(char *arg)
 {
        long ltmp;
 
+       free(cms_config.secret_key);
+
        if ((cms_config.secret_key = string_to_hex(arg, &ltmp)) == NULL) {
                BIO_printf(bio_err, "Invalid key %s\n", arg);
                return (1);
@@ -390,6 +394,8 @@ cms_opt_secretkeyid(char *arg)
 {
        long ltmp;
 
+       free(cms_config.secret_keyid);
+
        if ((cms_config.secret_keyid = string_to_hex(arg, &ltmp)) == NULL) {
                BIO_printf(bio_err, "Invalid id %s\n", arg);
                return (1);