From 9730280d54634caa5d63f0d8fcd85da8311d2ebf Mon Sep 17 00:00:00 2001 From: Gonglei Date: Sat, 26 Nov 2016 11:07:55 +0800 Subject: [PATCH] virtio-crypto: fix uninitialized variables Though crypto_cfg.reserve is an unused field, let me initialize the structure in order to make coverity happy. *** CID 1365923: Uninitialized variables (UNINIT) /hw/virtio/virtio-crypto.c: 851 in virtio_crypto_get_config() 845 stl_le_p(&crypto_cfg.mac_algo_h, c->conf.mac_algo_h); 846 stl_le_p(&crypto_cfg.aead_algo, c->conf.aead_algo); 847 stl_le_p(&crypto_cfg.max_cipher_key_len, c->conf.max_cipher_key_len); 848 stl_le_p(&crypto_cfg.max_auth_key_len, c->conf.max_auth_key_len); 849 stq_le_p(&crypto_cfg.max_size, c->conf.max_size); 850 >>> CID 1365923: Uninitialized variables (UNINIT) >>> Using uninitialized value "crypto_cfg". Field "crypto_cfg.reserve" is uninitialized when calling "memcpy". [Note: The source code implementation of the function has been overridden by a builtin model.] 851 memcpy(config, &crypto_cfg, c->config_size); 852 } 853 Rported-by: Markus Armbruster Signed-off-by: Gonglei Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/virtio/virtio-crypto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c index 847dc9dafd..2f2467e859 100644 --- a/hw/virtio/virtio-crypto.c +++ b/hw/virtio/virtio-crypto.c @@ -838,7 +838,7 @@ static Property virtio_crypto_properties[] = { static void virtio_crypto_get_config(VirtIODevice *vdev, uint8_t *config) { VirtIOCrypto *c = VIRTIO_CRYPTO(vdev); - struct virtio_crypto_config crypto_cfg; + struct virtio_crypto_config crypto_cfg = {}; /* * Virtio-crypto device conforms to VIRTIO 1.0 which is always LE,