Re: [PATCH net 1/3] bpf: bpf_out_neigh_v4: Fix nd_tbl NULL dereference when IPv6 is disabled

[Fernando Fernandez Mancera]

On 3/4/26 4:49 PM, David Ahern wrote:
> On 3/3/26 9:49 PM, Daniel Borkmann wrote:
> > Maybe the "fix" could be to just switch IPV6 from tristate to bool in
> > the Kconfig, and then once net merges into net-next we could deconstruct
> > all the helper cruft which makes the late on-demand module loading of
> > IPv6 work.
>
> +1

Maybe I am missing something here, but I believe this won't solve the 
problem. Even if ipv6 is built-in, it should be possible to pass 
ipv6.disable=1 during boot and therefore nd_tbl would still be 
uninitialized, not NULL tho.

Thanks,
Fernando.