linux-kernel - Re: [PATCH] gpiolib: fix lookup table matching

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: <176788220238.35397.4252497861767343282.b4-ty@oss.qualcomm.com>
Date: Thu,  8 Jan 2026 15:23:28 +0100
From: Bartosz Golaszewski <bartosz.golaszewski@....qualcomm.com>
To: Linus Walleij <linusw@...nel.org>, Bartosz Golaszewski <brgl@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Bartosz Golaszewski <bartosz.golaszewski@....qualcomm.com>
Cc: linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org
Subject: Re: [PATCH] gpiolib: fix lookup table matching


On Thu, 08 Jan 2026 11:23:14 +0100, Bartosz Golaszewski wrote:
> If on any iteration in gpiod_find(), gpio_desc_table_match() returns
> NULL (which is normal and expected), we never reinitialize desc back to
> ERR_PTR(-ENOENT) and if we don't find a match later on, we will return
> NULL causing a NULL-pointer dereference in users not expecting it. Don't
> initialize desc, but return ERR_PTR(-ENOENT) explicitly at the end of
> the function.
> 
> [...]

Applied, thanks!

[1/1] gpiolib: fix lookup table matching
      commit: 36f597bba049928004a050c132ab787ba0eba524

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@....qualcomm.com>