On 28/10/2021 18:58, Ivan Vecera wrote:
> Function br_get_link_af_size_filtered() calls br_cfm_{,peer}_mep_count()
> that return a count. When BRIDGE_CFM is not enabled these functions
> simply return -EOPNOTSUPP but do not modify count parameter and
> calling function then works with uninitialized variables.
> Modify these inline functions to return zero in count parameter.
>
> Fixes: b6d0425b816e ("bridge: cfm: Netlink Notifications.")
> Cc: Henrik Bjoernlund <[email protected]>
> Signed-off-by: Ivan Vecera <[email protected]>
> ---
> net/bridge/br_private.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
> index 37ca76406f1e..fd5e7e74573c 100644
> --- a/net/bridge/br_private.h
> +++ b/net/bridge/br_private.h
> @@ -1911,11 +1911,13 @@ static inline int br_cfm_status_fill_info(struct
> sk_buff *skb,
>
> static inline int br_cfm_mep_count(struct net_bridge *br, u32 *count)
> {
> + *count = 0;
> return -EOPNOTSUPP;
> }
>
> static inline int br_cfm_peer_mep_count(struct net_bridge *br, u32 *count)
> {
> + *count = 0;
> return -EOPNOTSUPP;
> }
> #endif
>
Thank you,
Acked-by: Nikolay Aleksandrov <[email protected]>
