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Message-ID: <164730e5.e7cf6.1898b96fb76.Coremail.linma@zju.edu.cn>
Date:   Tue, 25 Jul 2023 13:47:55 +0800 (GMT+08:00)
From:   "Lin Ma" <linma@....edu.cn>
To:     "Hangbin Liu" <liuhangbin@...il.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, razor@...ckwall.org, idosch@...dia.com,
        lucien.xin@...il.com, edwin.peer@...adcom.com, jiri@...nulli.us,
        md.fahad.iqbal.polash@...el.com, anirudh.venkataramanan@...el.com,
        jeffrey.t.kirsher@...el.com, neerav.parikh@...el.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] rtnetlink: let rtnl_bridge_setlink checks
 IFLA_BRIDGE_MODE length

Hello Hangbin,

> 
> If we got attr tIFLA_BRIDGE_FLAGS first, it will break here and not check
> the later IFLA_BRIDGE_MODE.
> 
> > +
> > +			if (nla_type(attr) == IFLA_BRIDGE_MODE) {
> > +				if (nla_len(attr) < sizeof(u16))
> > +					return -EINVAL;
> > +			}
> >  		}
> >  	}
> 
> Thanks
> Hangbin

Yeah, you are soooo right, will fix this ASAP

Regards
Lin

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