vhost: fix sprintf with snprintf

sprintf function is not secure as it doesn't check the length of string.
More secure function snprintf is used.

Fixes: d7280c9fffcb ("vhost: support selective datapath")
Cc: stable@dpdk.org
Signed-off-by: Pallantla Poornima <pallantlax.poornima@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Tiwei Bie <tiwei.bie@intel.com>

diff --git a/lib/librte_vhost/vdpa.c b/lib/librte_vhost/vdpa.c
index 1ff9b00..321e11f 100644 (file)
--- a/lib/librte_vhost/vdpa.c
+++ b/lib/librte_vhost/vdpa.c
@@ -66,7 +66,7 @@ rte_vdpa_register_device(struct rte_vdpa_dev_addr *addr,
        if (i == MAX_VHOST_DEVICE)
                return -1;
 
-       sprintf(device_name, "vdpa-dev-%d", i);
+       snprintf(device_name, sizeof(device_name), "vdpa-dev-%d", i);
        dev = rte_zmalloc(device_name, sizeof(struct rte_vdpa_device),
                        RTE_CACHE_LINE_SIZE);
        if (!dev)