netdev - Re: [PATCH v2 net] net: flower: fix stack-out-of-bounds in fl_set_key

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Message-ID: <sea4v7yibt2u6ru4fvist6cgatg4okrb4mmlu62m4xx7sh3yud@lzxwshuvlcbc>
Date: Thu, 27 Jul 2023 08:38:41 +0200
From: Zahari Doychev <zahari.doychev@...ux.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: "David S . Miller" <davem@...emloft.net>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
	Jamal Hadi Salim <jhs@...atatu.com>, Cong Wang <xiyou.wangcong@...il.com>, 
	Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org, eric.dumazet@...il.com, 
	syzbot <syzkaller@...glegroups.com>, Zahari Doychev <zdoychev@...linear.com>, 
	Simon Horman <simon.horman@...igine.com>, Ido Schimmel <idosch@...dia.com>
Subject: Re: [PATCH v2 net] net: flower: fix stack-out-of-bounds in
 fl_set_key_cfm()

On Wed, Jul 26, 2023 at 02:58:15PM +0000, Eric Dumazet wrote:
> Typical misuse of
> 
> 	nla_parse_nested(array, XXX_MAX, ...);
> 
> array must be declared as
> 
> 	struct nlattr *array[XXX_MAX + 1];
> 
> v2: Based on feedbacks from Ido Schimmel and Zahari Doychev,
> I also changed TCA_FLOWER_KEY_CFM_OPT_MAX and cfm_opt_policy
> definitions.

[...]

Reviewed-by: Zahari Doychev <zdoychev@...linear.com>

thanks