linux-kernel - Re: [lvc-project] [PATCH] wifi: mac80211: fix buffer overflow in ieee80211_rx_get

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Message-ID: <fb9f1d68-77a4-0620-10fc-982b83660de8@mcst.ru>
Date:   Thu, 5 Oct 2023 15:31:23 +0300
From:   "Igor A. Artemiev" <Igor.A.Artemiev@...t.ru>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org
Subject: Re: [lvc-project] [PATCH] wifi: mac80211: fix buffer overflow in
 ieee80211_rx_get_bigtk()


On 10/4/23 17:58, Johannes Berg wrote:
> And ... how exactly do you propose that is going to happen?

'conf.keyidx', the value that is passed to the function, can be 0. But I 
missed checking the second argument of the ieee80211_rx_get_bigtk() 
function before calling it. Sorry to bother you.

Thanks,
Igor