From: Davide Caratti <dcara...@redhat.com>
Date: Mon, 27 Aug 2018 22:56:22 +0200
> in the (rare) case of failure in nla_nest_start(), missing NULL checks in
> tcf_pedit_key_ex_dump() can make the following command
>
> # tc action add action pedit ex munge ip ttl set 64
>
> dereference a NULL pointer:
...
> Like it's done for other TC actions, give up dumping pedit rules and return
> an error if nla_nest_start() returns NULL.
>
> Fixes: 71d0ed7079df ("net/act_pedit: Support using offset relative to the
> conventional network headers")
> Signed-off-by: Davide Caratti <dcara...@redhat.com>
Applied and queued up for -stable, thanks.
