netdev - Re: [PATCH net] net: sched: fix possible crash in tcf_action

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Message-Id: <20190924.163631.1747631703169589693.davem@davemloft.net>
Date:   Tue, 24 Sep 2019 16:36:31 +0200 (CEST)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com,
        syzkaller@...glegroups.com, vladbu@...lanox.com, jiri@...lanox.com
Subject: Re: [PATCH net] net: sched: fix possible crash in
 tcf_action_destroy()

From: Eric Dumazet <edumazet@...gle.com>
Date: Wed, 18 Sep 2019 12:57:04 -0700

> If the allocation done in tcf_exts_init() failed,
> we end up with a NULL pointer in exts->actions.
 ...
> Fixes: 90b73b77d08e ("net: sched: change action API to use array of pointers to actions")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>

Applied and queued up for -stable.