Re: [PATCH net] can: netlink: fix IFLA_CAN_BITRATE_MAX attribute sizing

[Marc Kleine-Budde]

On Sat, 05 Sep 2026 00:20:58 +0800, Zhu Ling <zhuling0805@xxxxxx> wrote:
> can_fill_info() emits IFLA_CAN_BITRATE_MAX with nla_put(), which consumes
> space for both the attribute header and its aligned payload. However,
> can_get_size() accounts for the payload only. The resulting underestimate
> can make filling the netlink response fail with -EMSGSIZE when the skb has
> no remaining slack.
> 
> Use nla_total_size() to account for the complete attribute.
> 
> [...]

Reviewed-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>

-- 
Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>