Re: Combine ipv4 and ipv6 in a set

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On Sat, Feb 03, 2024 at 03:49:54PM +0000, Eric wrote:
> On Friday, February 2nd, 2024 at 01:23, Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> wrote:
> > Works fine with -stable 5.15 and 6.1 here.
> > 
> > Does your kernel turn on this?
> > 
> > CONFIG_NETFILTER_NETLINK_HOOK=m
> 
> Like Slavko, my test devices (both OpenWrt builds) have
> 
> # CONFIG_NETFILTER_NETLINK_HOOK is not set
> 
> I'll have to check and see how much it grows the kernel when enabled, as this
> seems like it would be useful to have on by default.

It should not take much, it is a simple netlink interface that
iterates over a few existing datastructures.

> Re the seg fault, I'm still trying to find a minimal reproducer, but it looks
> like just about anything fires it off with k5.15 (I see it on x86, MIPS and
> aarch64 devices).

Strange that userspace crashes depending on the kernel version.

What is your userspace nft version there?

Thanks.




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