lib-dcrypt: add crashing 8 byte garbage read test

diff --git a/src/lib-dcrypt/test-stream.c b/src/lib-dcrypt/test-stream.c
index fff71269e732a003f8eb1e0d5dc4365638b9a84a..77eb8efe9bc8ddf38858aecaf56f18ddb6bd9555 100644 (file)
--- a/src/lib-dcrypt/test-stream.c
+++ b/src/lib-dcrypt/test-stream.c
@@ -392,6 +392,29 @@ void test_write_read_v2_empty(void)
        test_end();
 }
 
+static int no_op_cb(const char *digest ATTR_UNUSED,
+               struct dcrypt_private_key **priv_key_r ATTR_UNUSED,
+               const char **error_r ATTR_UNUSED,
+               void *context ATTR_UNUSED)
+{
+       return 0;
+}
+
+static void test_read_8byte_garbage(void)
+{
+       test_begin("test_read_8byte_garbage");
+
+       struct istream *is = i_stream_create_from_data("12345678", 8);
+       struct istream *ds = i_stream_create_decrypt_callback(is,
+                       no_op_cb, NULL);
+       ssize_t siz = i_stream_read(ds);
+       test_assert(siz < 0);
+       i_stream_unref(&ds);
+       i_stream_unref(&is);
+
+       test_end();
+}
+
 static
 void test_free_keys() {
        dcrypt_key_unref_private(&test_v1_kp.priv);
@@ -420,6 +443,7 @@ int main(void) {
                test_write_read_v2_short,
                test_write_read_v2_empty,
                test_free_keys,
+               test_read_8byte_garbage,
                NULL
        };