linux-kernel - [PATCH 0/6] ASoC: codecs: wcd93xx/wsa88xx: Correct Soundwire ports mask

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Message-Id: <20240726-asoc-wcd-wsa-swr-ports-genmask-v1-0-d4d7a8b56f05@linaro.org>
Date: Fri, 26 Jul 2024 16:10:40 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Mohammad Rafi Shaik <quic_mohs@...cinc.com>, 
 Prasad Kumpatla <quic_pkumpatl@...cinc.com>, 
 Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Banajit Goswami <bgoswami@...cinc.com>, 
 Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org, 
 alsa-devel@...a-project.org, linux-arm-msm@...r.kernel.org
Subject: [PATCH 0/6] ASoC: codecs: wcd93xx/wsa88xx: Correct Soundwire ports
 mask

Hi,

Incorrect mask of Soundwire ports - one bit too long/big - was passed.

Theoretically, too wide mask could cause an out of bounds read in
sdw_get_slave_dpn_prop() in stream.c, however only in the case of buggy
driver, e.g. adding incorrect number of ports via
sdw_stream_add_slave().

Not adding Cc-stable because I don't think the issue can lead to real
out-of-bounds read.

Best regards,
Krzysztof

---
Krzysztof Kozlowski (6):
      ASoC: codecs: wcd937x-sdw: Correct Soundwire ports mask
      ASoC: codecs: wcd938x-sdw: Correct Soundwire ports mask
      ASoC: codecs: wcd939x-sdw: Correct Soundwire ports mask
      ASoC: codecs: wsa881x: Correct Soundwire ports mask
      ASoC: codecs: wsa883x: Correct Soundwire ports mask
      ASoC: codecs: wsa884x: Correct Soundwire ports mask

 sound/soc/codecs/wcd937x-sdw.c | 4 ++--
 sound/soc/codecs/wcd938x-sdw.c | 4 ++--
 sound/soc/codecs/wcd939x-sdw.c | 4 ++--
 sound/soc/codecs/wsa881x.c     | 2 +-
 sound/soc/codecs/wsa883x.c     | 2 +-
 sound/soc/codecs/wsa884x.c     | 2 +-
 6 files changed, 9 insertions(+), 9 deletions(-)
---
base-commit: 864b1099d16fc7e332c3ad7823058c65f890486c
change-id: 20240726-asoc-wcd-wsa-swr-ports-genmask-868239f9682f

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>