linux-kernel - Re: [PATCH v2 08/14] pinctrl: qcom: spmi-gpio: drop broken pm8008 support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CACRpkdavOBqVe2gON=5Zk6JVWJfjy3E80YFEsyo0-94d1bX8FQ@mail.gmail.com>
Date: Fri, 7 Jun 2024 22:52:59 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Johan Hovold <johan+linaro@...nel.org>
Cc: Lee Jones <lee@...nel.org>, Mark Brown <broonie@...nel.org>, 
	Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Liam Girdwood <lgirdwood@...il.com>, Das Srinagesh <quic_gurus@...cinc.com>, 
	Satya Priya Kakitapalli <quic_skakitap@...cinc.com>, Stephen Boyd <swboyd@...omium.org>, 
	"Bryan O'Donoghue" <bryan.odonoghue@...aro.org>, Andy Shevchenko <andy.shevchenko@...il.com>, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org, 
	stable@...r.kernel.org
Subject: Re: [PATCH v2 08/14] pinctrl: qcom: spmi-gpio: drop broken pm8008 support

On Wed, May 29, 2024 at 6:30 PM Johan Hovold <johan+linaro@...nel.org> wrote:

> The SPMI GPIO driver assumes that the parent device is an SPMI device
> and accesses random data when backcasting the parent struct device
> pointer for non-SPMI devices.
>
> Fortunately this does not seem to cause any issues currently when the
> parent device is an I2C client like the PM8008, but this could change if
> the structures are reorganised (e.g. using structure randomisation).
>
> Notably the interrupt implementation is also broken for non-SPMI devices.
>
> Also note that the two GPIO pins on PM8008 are used for interrupts and
> reset so their practical use should be limited.
>
> Drop the broken GPIO support for PM8008 for now.
>
> Fixes: ea119e5a482a ("pinctrl: qcom-pmic-gpio: Add support for pm8008")
> Cc: stable@...r.kernel.org      # 5.13
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> Reviewed-by: Stephen Boyd <swboyd@...omium.org>
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>

This patch applied to pinctrl fixes.

Yours,
Linus Walleij