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From: Francesco Dolcini <francesco@dolcini.it>
To: Pengpeng Hou <pengpeng@iscas.ac.cn>
Cc: Brian Norris <briannorris@chromium.org>,
	Francesco Dolcini <francesco@dolcini.it>,
	Kees Cook <kees@kernel.org>,
	linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] wifi: mwifiex: validate rate scope TLV length
Date: Wed, 15 Jul 2026 16:01:46 +0200	[thread overview]
Message-ID: <20260715140146.GC56330@francesco-nb> (raw)
In-Reply-To: <20260706091346.76985-1-pengpeng@iscas.ac.cn>

On Mon, Jul 06, 2026 at 05:13:46PM +0800, Pengpeng Hou wrote:
> From: Pengpeng <pengpeng@iscas.ac.cn>
> 
> mwifiex_ret_tx_rate_cfg() verifies that a TLV stays within the command
> response, then parses RATE_SCOPE as struct mwifiex_rate_scope. The
> type-specific parser also needs to prove that the declared TLV payload
> covers the bitmap fields that it reads.
> 
> Check the RATE_SCOPE payload length before copying the legacy bitmaps,
> and require the VHT bitmap area only for firmware API version 15 where
> it is consumed.
> 
> Signed-off-by: Pengpeng <pengpeng@iscas.ac.cn>

Is this change tested? On which device? How?

Francesco


      reply	other threads:[~2026-07-15 14:01 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-06  9:13 [PATCH] wifi: mwifiex: validate rate scope TLV length Pengpeng Hou
2026-07-15 14:01 ` Francesco Dolcini [this message]

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