netdev - Re: [PATCH net-next 1/2] net: sched: fix the err path of tcf_ct_init in act

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Date:   Tue, 27 Sep 2022 14:43:04 +0200
From:   Paolo Abeni <pabeni@...hat.com>
To:     Xin Long <lucien.xin@...il.com>,
        network dev <netdev@...r.kernel.org>
Cc:     davem@...emloft.net, kuba@...nel.org,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Davide Caratti <dcaratti@...hat.com>,
        Oz Shlomo <ozsh@...dia.com>, Paul Blakey <paulb@...dia.com>,
        Ilya Maximets <i.maximets@....org>
Subject: Re: [PATCH net-next 1/2] net: sched: fix the err path of
 tcf_ct_init in act_ct

On Fri, 2022-09-23 at 11:28 -0400, Xin Long wrote:
> When it returns err from tcf_ct_flow_table_get(), the param tmpl should
> have been freed in the cleanup. Otherwise a memory leak will occur.
> 
> While fixing this problem, this patch also makes the err path simple by
> calling tcf_ct_params_free(), so that it won't cause problems when more
> members are added into param and need freeing on the err path.
> 
> Fixes: c34b961a2492 ("net/sched: act_ct: Create nf flow table per zone")
> Signed-off-by: Xin Long <lucien.xin@...il.com>

I think it's better if you re-submit this patch for -net explicitly, as
it LGTM and makes sense to let it reach the affected kernel soon.

Thanks!

Paolo