Re: [PATCH nf-next 2/6] netfilter: bridge: check len before accessing more nh data

[Nikolay Aleksandrov <razor@xxxxxxxxxxxxx>]

On 04/03/2023 02:12, Xin Long wrote:
> In the while loop of br_nf_check_hbh_len(), similar to ip6_parse_tlv(),
> before accessing 'nh[off + 1]', it should add a check 'len < 2'; and
> before parsing IPV6_TLV_JUMBO, it should add a check 'optlen > len',
> in case of overflows.
> 
> Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
> ---
>  net/bridge/br_netfilter_ipv6.c | 47 ++++++++++++++++------------------
>  1 file changed, 22 insertions(+), 25 deletions(-)


Acked-by: Nikolay Aleksandrov <razor@xxxxxxxxxxxxx>