linux-kernel - Re: [PATCH] gpiolib: acpi: initialize acpi_gpio

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: <20250915044703.GA476609@black.igk.intel.com>
Date: Mon, 15 Sep 2025 06:47:03 +0200
From: Mika Westerberg <mika.westerberg@...ux.intel.com>
To: Sébastien Szymanski <sebastien.szymanski@...adeus.com>
Cc: Mika Westerberg <westeri@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>, linux-gpio@...r.kernel.org,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpiolib: acpi: initialize acpi_gpio_info struct

On Fri, Sep 12, 2025 at 10:18:50PM +0200, Sébastien Szymanski wrote:
> Since commit 7c010d463372 ("gpiolib: acpi: Make sure we fill struct
> acpi_gpio_info"), uninitialized acpi_gpio_info struct are passed to
> __acpi_find_gpio() and later in the call stack info->quirks is used in
> acpi_populate_gpio_lookup. This breaks the i2c_hid_cpi driver:
> 
> [   58.122916] i2c_hid_acpi i2c-UNIW0001:00: HID over i2c has not been provided an Int IRQ
> [   58.123097] i2c_hid_acpi i2c-UNIW0001:00: probe with driver i2c_hid_acpi failed with error -22
> 
> Fix this by initializing the acpi_gpio_info pass to __acpi_find_gpio()
> 
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220388
> Fixes: 7c010d463372 ("gpiolib: acpi: Make sure we fill struct acpi_gpio_info")
> Signed-off-by: Sébastien Szymanski <sebastien.szymanski@...adeus.com>

Should have stable tag too, I think. Andy can add that once he applies.

Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>