Re: [PATCH] [net/ipv6] ip6_output: Add ipv6_pinfo null check

[Cong Wang]

On Sun, Jul 26, 2020 at 8:39 PM Gaurav Singh <gaurav1086@xxxxxxxxx> wrote:
>
> ipv6_pinfo is initlialized by inet6_sk() which returns NULL.

Why? It only returns NULL for timewait or request sock, but
I don't see how ip6_autoflowlabel() could be called on these
sockets. So please explain.

> Hence it can cause segmentation fault. Fix this by adding a
> NULL check.

Which exact call path? Do you have a full stack trace?

Thanks.