From: Jiri Pirko <jiri@resnulli.us>
To: Cong Wang <xiyou.wangcong@gmail.com>
Cc: netdev@vger.kernel.org, dave.taht@gmail.com,
Jiri Pirko <jiri@mellanox.com>
Subject: Re: [Patch net-next] net_sched: check NULL in tcf_block_put()
Date: Fri, 3 Nov 2017 07:56:19 +0100 [thread overview]
Message-ID: <20171103065619.GD2024@nanopsycho> (raw)
In-Reply-To: <20171103003208.12329-1-xiyou.wangcong@gmail.com>
Fri, Nov 03, 2017 at 01:32:08AM CET, xiyou.wangcong@gmail.com wrote:
>Callers of tcf_block_put() could pass NULL so
>we can't use block->q before checking if block is
>NULL or not.
>
>tcf_block_put_ext() callers are fine, it is always
>non-NULL.
>
>Fixes: 8c4083b30e56 ("net: sched: add block bind/unbind notif. and extended block_get/put")
>Reported-by: Dave Taht <dave.taht@gmail.com>
>Cc: Jiri Pirko <jiri@mellanox.com>
>Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
next prev parent reply other threads:[~2017-11-03 6:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-03 0:32 [Patch net-next] net_sched: check NULL in tcf_block_put() Cong Wang
2017-11-03 6:56 ` Jiri Pirko [this message]
2017-11-03 12:31 ` David Miller
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