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Date:   Sun, 17 Feb 2019 13:25:08 -0800 (PST)
From:   David Miller <>
Subject: Re: [PATCH net-next] net: sched: matchall: verify that filter is
 not NULL in mall_walk()

From: Vlad Buslov <>
Date: Fri, 15 Feb 2019 17:17:56 +0200

> Check that filter is not NULL before passing it to tcf_walker->fn()
> callback. This can happen when mall_change() failed to offload filter to
> hardware.
> Fixes: ed76f5edccc9 ("net: sched: protect filter_chain list with filter_chain_lock mutex")
> Reported-by: Ido Schimmel <>
> Tested-by: Ido Schimmel <>
> Signed-off-by: Vlad Buslov <>


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