wifi: mwifiex: duplicate static structs used in driver instances

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commit 27ec3c57fc upstream.

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@vger.kernel.org
Fixes: d6bffe8bb5 ("mwifiex: support for creation of AP interface")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240809-mwifiex-duplicate-static-structs-v1-1-6837b903b1a4@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Sascha Hauer 2024-08-09 10:11:33 +02:00 • committed by Greg Kroah-Hartman

parent 2926be1d0f

commit f43ac082e2

1 changed files with 26 additions and 6 deletions

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drivers/net/wireless/marvell/mwifiex/cfg80211.c

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