netdev - Re: [PATCH 1/1] mwifiex: Fix possible buffer overflows in mwifiex_uap_bss_param

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Message-ID: <87r1o0cmgn.fsf@codeaurora.org>
Date:   Tue, 08 Dec 2020 18:05:28 +0200
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Xiaohui Zhang <ruc_zhangxiaohui@....com>
Cc:     Amitkumar Karwar <amitkarwar@...il.com>,
        Ganapathi Bhat <ganapathi.bhat@....com>,
        Xinming Hu <huxinming820@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] mwifiex: Fix possible buffer overflows in mwifiex_uap_bss_param_prepare

Xiaohui Zhang <ruc_zhangxiaohui@....com> writes:

> From: Zhang Xiaohui <ruc_zhangxiaohui@....com>
>
> mwifiex_uap_bss_param_prepare() calls memcpy() without checking
> the destination size may trigger a buffer overflower,
> which a local user could use to cause denial of service or the
> execution of arbitrary code.
> Fix it by putting the length check before calling memcpy().
>
> Signed-off-by: Zhang Xiaohui <ruc_zhangxiaohui@....com>

When you submit a new version mark it as v2:

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

But this is just for the future, no need to resend because of this.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

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