Re: [PATCH net 4/4] net: ravb: Fix RX byte accounting for jumbo packets

[Sergey Shtylyov]

On 4/11/24 2:44 PM, Paul Barker wrote:

> The RX byte accounting for jumbo packets was changed to fix a potential
> use-after-free bug. However, that fix used the wrong variable and so
> only accounted for the number of bytes in the final descriptor, not the
> number of bytes in the whole packet.
> 
> To fix this, we can simply update our stats with the correct number of
> bytes before calling napi_gro_receive().
> 
> Also rename pkt_len to desc_len in ravb_rx_gbeth() to avoid any future
> confusion. The variable name pkt_len is correct in ravb_rx_rcar() as
> that function does not handle packets spanning multiple descriptors.
> 
> Fixes: 5a5a3e564de6 ("ravb: Fix potential use-after-free in ravb_rx_gbeth()")
> Signed-off-by: Paul Barker <paul.barker.ct@xxxxxxxxxxxxxx>

Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>

[...]

MBR, Sergey