[dpdk-dev] [PATCH 3/3] vhost: fix possible out of bound access

Maxime Coquelin maxime.coquelin at redhat.com
Wed Oct 31 18:28:19 CET 2018



On 10/28/18 2:08 AM, Ferruh Yigit wrote:
> Fixes: d7280c9fffcb ("vhost: support selective datapath")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
> ---
>   lib/librte_vhost/vdpa.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/lib/librte_vhost/vdpa.c b/lib/librte_vhost/vdpa.c
> index c2c5dff1d..e7d849ee0 100644
> --- a/lib/librte_vhost/vdpa.c
> +++ b/lib/librte_vhost/vdpa.c
> @@ -63,6 +63,9 @@ rte_vdpa_register_device(struct rte_vdpa_dev_addr *addr,
>   			break;
>   	}
>   
> +	if (i == MAX_VHOST_DEVICE)
> +		return -1;
> +
>   	sprintf(device_name, "vdpa-dev-%d", i);
>   	dev = rte_zmalloc(device_name, sizeof(struct rte_vdpa_device),
>   			RTE_CACHE_LINE_SIZE);
> 

Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>

Thanks,
Maxime


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