From: Tobias Brunner <[email protected]>
Date: Mon, 24 Oct 2016 15:44:26 +0200
> Even if sending SCIs is explicitly disabled, the code that creates the
> Security Tag might still decide to add it (e.g. if multiple RX SCs are
> defined on the MACsec interface).
> But because the header length so far only depended on the configuration
> option the SCI overwrote the original frame's contents (EtherType and
> e.g. the beginning of the IP header) and if encrypted did not visibly
> end up in the packet, while the SC flag in the TCI field of the Security
> Tag was still set, resulting in invalid MACsec frames.
>
> Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver")
> Signed-off-by: Tobias Brunner <[email protected]>
Applied and queued up for -stable.
