On Thu, 2 May 2019 16:15:10 +0200 (CEST)
Michal Kubecek <[email protected]> wrote:
> Add new validation flag NL_VALIDATE_NESTED which adds three consistency
> checks of NLA_F_NESTED_FLAG:
>
> - the flag is set on attributes with NLA_NESTED{,_ARRAY} policy
> - the flag is not set on attributes with other policies except NLA_UNSPEC
> - the flag is set on attribute passed to nla_parse_nested()
>
> Signed-off-by: Michal Kubecek <[email protected]>
>
> v2: change error messages to mention NLA_F_NESTED explicitly
There are some cases where netlink related to IPv4 does not send nested
flag. You risk breaking older iproute2 and other tools being used on newer
kernel. I.e this patch may break binary compatibility. Have you tried running
with this on a very old distro (like Redhat Linux 9)?
