linux-kernel - Re: [PATCH] mwifiex: fix potential NULL dereference and use after free

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Message-Id: <20181213145407.1DF896071A@smtp.codeaurora.org>
Date:   Thu, 13 Dec 2018 14:54:06 +0000 (UTC)
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Pan Bian <bianpan2016@....com>
Cc:     Amitkumar Karwar <amitkarwar@...il.com>,
        Nishant Sarmukadam <nishants@...vell.com>,
        Ganapathi Bhat <gbhat@...vell.com>,
        Xinming Hu <huxinming820@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Pan Bian <bianpan2016@....com>
Subject: Re: [PATCH] mwifiex: fix potential NULL dereference and use after free

Pan Bian <bianpan2016@....com> wrote:

> There are two defects: (1) passing a NULL bss to
> mwifiex_save_hidden_ssid_channels will result in NULL dereference,
> (2) using bss after dropping the reference to it via cfg80211_put_bss.
> To fix them, the patch moves the buggy code to the branch that bss is
> not NULL and puts it before cfg80211_put_bss.
> 
> Signed-off-by: Pan Bian <bianpan2016@....com>

Patch applied to wireless-drivers-next.git, thanks.

1dcd9429212b mwifiex: fix potential NULL dereference and use after free

-- 
https://patchwork.kernel.org/patch/10704311/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches