linux-kernel - Re: [PATCH] mwifiex: duplicate static structs used in driver instances

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Message-ID: <875xsai043.fsf@kernel.org>
Date: Fri, 09 Aug 2024 11:14:36 +0300
From: Kalle Valo <kvalo@...nel.org>
To: Sascha Hauer <s.hauer@...gutronix.de>
Cc: Brian Norris <briannorris@...omium.org>,  Francesco Dolcini
 <francesco@...cini.it>,  Yogesh Ashok Powar <yogeshp@...vell.com>,  Bing
 Zhao <bzhao@...vell.com>,  "John W. Linville" <linville@...driver.com>,
  Amitkumar Karwar <akarwar@...vell.com>,  Avinash Patil
 <patila@...vell.com>,  Kiran Divekar <dkiran@...vell.com>,
  linux-wireless@...r.kernel.org,  linux-kernel@...r.kernel.org,
  kernel@...gutronix.de,  stable@...r.kernel.org
Subject: Re: [PATCH] mwifiex: duplicate static structs used in driver instances

Sascha Hauer <s.hauer@...gutronix.de> writes:

> mwifiex_band_2ghz and mwifiex_band_5ghz are statically allocated, but
> used and modified in driver instances. Duplicate them before using
> them in driver instances so that different driver instances do not
> influence each other.
>
> This was observed on a board which has one PCIe and one SDIO mwifiex
> adapter. It blew up in mwifiex_setup_ht_caps(). This was called with
> the statically allocated struct which is modified in this function.
>
> Cc: stable@...r.kernel.org
> Fixes: d6bffe8bb520 ("mwifiex: support for creation of AP interface")
> Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>

Should this go to wireless tree for v6.11?

"wifi:" missing in subject but I can add that, no need to resend because
of this.

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