netdev - Re: [PATCH net-next v4 4/5] net: hdlc_fr: Do skb_reset_mac_header for skbs received on normal PVC devices

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 30 Oct 2020 12:29:26 -0400
From:   Willem de Bruijn <willemdebruijn.kernel@...il.com>
To:     Xie He <xie.he.0141@...il.com>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Network Development <netdev@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Krzysztof Halasa <khc@...waw.pl>
Subject: Re: [PATCH net-next v4 4/5] net: hdlc_fr: Do skb_reset_mac_header for
 skbs received on normal PVC devices

On Thu, Oct 29, 2020 at 10:33 PM Xie He <xie.he.0141@...il.com> wrote:
>
> When an skb is received on a normal (non-Ethernet-emulating) PVC device,
> call skb_reset_mac_header before we pass it to upper layers.
>
> This is because normal PVC devices don't have header_ops, so any header we
> have would not be visible to upper layer code when sending, so the header
> shouldn't be visible to upper layer code when receiving, either.
>
> Cc: Willem de Bruijn <willemdebruijn.kernel@...il.com>
> Cc: Krzysztof Halasa <khc@...waw.pl>
> Signed-off-by: Xie He <xie.he.0141@...il.com>

Acked-by: Willem de Bruijn <willemb@...gle.com>

Should this go to net if a bugfix though?