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

From: Sascha Hauer
Date: Fri Aug 09 2024 - 04:23:57 EST


On Fri, Aug 09, 2024 at 11:14:36AM +0300, Kalle Valo wrote:
> Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxx
> > Fixes: d6bffe8bb520 ("mwifiex: support for creation of AP interface")
> > Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
>
> Should this go to wireless tree for v6.11?

Yes, that would be great.

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

Ok, thanks. I'll keep that in mind for the next patches.

Sascha

--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |