netdev - Re: [patch net] net: sched: fix possible null pointer deref in tcf_block

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Message-Id: <20171226.130234.108191619236776460.davem@davemloft.net>
Date:   Tue, 26 Dec 2017 13:02:34 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     jiri@...nulli.us
Cc:     netdev@...r.kernel.org, jhs@...atatu.com, xiyou.wangcong@...il.com,
        mlxsw@...lanox.com, bhole_prashant_q7@....ntt.co.jp
Subject: Re: [patch net] net: sched: fix possible null pointer deref in
 tcf_block_put

From: Jiri Pirko <jiri@...nulli.us>
Date: Thu, 21 Dec 2017 13:13:59 +0100

> From: Jiri Pirko <jiri@...lanox.com>
> 
> We need to check block for being null in both tcf_block_put and
> tcf_block_put_ext.
> 
> Fixes: 343723dd51ef ("net: sched: fix clsact init error path")
> Reported-by: Prashant Bhole <bhole_prashant_q7@....ntt.co.jp>
> Signed-off-by: Jiri Pirko <jiri@...lanox.com>

Applied.