diff --git a/tests/unittests/torture_pki_dsa.c b/tests/unittests/torture_pki_dsa.c
index 54a6c1e7..1d98ccb4 100644
--- a/tests/unittests/torture_pki_dsa.c
+++ b/tests/unittests/torture_pki_dsa.c
@@ -52,7 +52,7 @@ static int teardown_dsa_key(void **state)
 static void torture_pki_dsa_import_privkey_base64(void **state)
 {
     int rc;
-    ssh_key key;
+    ssh_key key = NULL;
     const char *passphrase = torture_get_testkey_passphrase();
 
     (void) state; /* unused */
@@ -70,8 +70,8 @@ static void torture_pki_dsa_import_privkey_base64(void **state)
 #ifdef HAVE_LIBCRYPTO
 static void torture_pki_dsa_write_privkey(void **state)
 {
-    ssh_key origkey;
-    ssh_key privkey;
+    ssh_key origkey = NULL;
+    ssh_key privkey = NULL;
     int rc;
 
     (void) state; /* unused */
@@ -220,8 +220,8 @@ static void torture_pki_dsa_import_privkey_base64_passphrase(void **state)
 static void torture_pki_dsa_publickey_from_privatekey(void **state)
 {
     int rc;
-    ssh_key key;
-    ssh_key pubkey;
+    ssh_key key = NULL;
+    ssh_key pubkey = NULL;
     const char *passphrase = NULL;
 
     (void) state; /* unused */
@@ -246,7 +246,7 @@ static void torture_pki_dsa_publickey_from_privatekey(void **state)
 static void torture_pki_dsa_import_cert_file(void **state)
 {
     int rc;
-    ssh_key cert;
+    ssh_key cert = NULL;
     enum ssh_keytypes_e type;
 
     (void) state; /* unused */
@@ -266,9 +266,9 @@ static void torture_pki_dsa_import_cert_file(void **state)
 static void torture_pki_dsa_publickey_base64(void **state)
 {
     enum ssh_keytypes_e type;
-    char *b64_key, *key_buf, *p;
-    const char *str;
-    ssh_key key;
+    char *b64_key = NULL, *key_buf = NULL, *p = NULL;
+    const char *str = NULL;
+    ssh_key key = NULL;
     size_t keylen;
     size_t i;
     int rc;
@@ -317,8 +317,8 @@ static void torture_pki_dsa_publickey_base64(void **state)
 static void torture_pki_dsa_generate_pubkey_from_privkey(void **state)
 {
     char pubkey_generated[4096] = {0};
-    ssh_key privkey;
-    ssh_key pubkey;
+    ssh_key privkey = NULL;
+    ssh_key pubkey = NULL;
     int len;
     int rc;
 
@@ -357,11 +357,11 @@ static void torture_pki_dsa_generate_pubkey_from_privkey(void **state)
 static void torture_pki_dsa_duplicate_key(void **state)
 {
     int rc;
-    char *b64_key;
-    char *b64_key_gen;
-    ssh_key pubkey;
-    ssh_key privkey;
-    ssh_key privkey_dup;
+    char *b64_key = NULL;
+    char *b64_key_gen = NULL;
+    ssh_key pubkey = NULL;
+    ssh_key privkey = NULL;
+    ssh_key privkey_dup = NULL;
 
     (void) state;
 
@@ -403,8 +403,8 @@ static void torture_pki_dsa_duplicate_key(void **state)
 static void torture_pki_dsa_generate_key(void **state)
 {
     int rc;
-    ssh_key key;
-    ssh_signature sign;
+    ssh_key key = NULL;
+    ssh_signature sign = NULL;
     ssh_session session=ssh_new();
     (void) state;