Re: [PATCH net v3 1/1] net: ethernet: lantiq_etop: fix memory disclosure

[Paolo Abeni]

On 9/23/24 23:49, Aleksander Jan Bajkowski wrote:
> When applying padding, the buffer is not zeroed, which results in memory
> disclosure. The mentioned data is observed on the wire. This patch uses
> skb_put_padto() to pad Ethernet frames properly. The mentioned function
> zeroes the expanded buffer.
>
> In case the packet cannot be padded it is silently dropped. Statistics
> are also not incremented. This driver does not support statistics in the
> old 32-bit format or the new 64-bit format. These will be added in the
> future. In its current form, the patch should be easily backported to
> stable versions.
>
> Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets
> in hardware, so software padding must be applied.
>
> Fixes: 504d4721ee8e ("MIPS: Lantiq: Add ethernet driver")
> Signed-off-by: Aleksander Jan Bajkowski <olek2@xxxxx>

For future submissions, please avoid adding the cover letter in case of 
a single patch.

Thanks,

Paolo