On 01/02/17 08:50, Dan Carpenter wrote:
> These checks are off by one. These are just sanity checks and we don't
> ever pass invalid values for "encap_type" so it's harmless.
>
> Fixes: 9b4108012517 ("sfc: insert catch-all filters for encapsulated traffic")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
One of these was already fixed by Colin Ian King in
e9904990e8e70a51574e6ec6b872f3c705ec75f0 ("sfc: fix an off-by-one compare on an
array size").
For the other one:
Acked-by: Edward Cree <ecree@xxxxxxxxxxxxxx>
> diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
> index 8bec9383d754..dec0c8083ff3 100644
> --- a/drivers/net/ethernet/sfc/ef10.c
> +++ b/drivers/net/ethernet/sfc/ef10.c
> @@ -5080,7 +5080,7 @@ static int efx_ef10_filter_insert_def(struct efx_nic *efx,
>
> /* quick bounds check (BCAST result impossible) */
> BUILD_BUG_ON(EFX_EF10_BCAST != 0);
> - if (encap_type > ARRAY_SIZE(map) || map[encap_type] == 0) {
> + if (encap_type >= ARRAY_SIZE(map) || map[encap_type] == 0) {
> WARN_ON(1);
> return -EINVAL;
> }
> @@ -5134,7 +5134,7 @@ static int efx_ef10_filter_insert_def(struct efx_nic *efx,
>
> /* quick bounds check (BCAST result impossible) */
> BUILD_BUG_ON(EFX_EF10_BCAST != 0);
> - if (encap_type > ARRAY_SIZE(map) || map[encap_type] == 0) {
> + if (encap_type >= ARRAY_SIZE(map) || map[encap_type] == 0) {
> WARN_ON(1);
> return -EINVAL;
> }
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