CVE-2026-90258: pinctrl: airoha: add missed IRQ resource helpers

CVE-2026-90258: pinctrl: airoha: add missed IRQ resource helpers

[Greg Kroah-Hartman]

From: Greg Kroah-Hartman <gregkh@kernel.org>

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

pinctrl: airoha: add missed IRQ resource helpers

Without hooking .irq_request_resources, gpiolib cannot set
GPIOD_FLAG_USED_AS_IRQ. This breaks pin direction locking and can allow
userspace or another driver to reconfigure an active IRQ pin as an output

The Linux kernel CVE team has assigned CVE-2026-90258 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 6.13 with commit 1c8ace2d0725c1c8d5012f8a56c5fb31805aad27 and fixed in 6.18.52 with commit fda7350f257e59eee1bc7537c202e36bd56aea97
	Issue introduced in 6.13 with commit 1c8ace2d0725c1c8d5012f8a56c5fb31805aad27 and fixed in 7.2.6 with commit 2c968c11592b478af4fbcb9453a0e1ac664c2e90
	Issue introduced in 6.13 with commit 1c8ace2d0725c1c8d5012f8a56c5fb31805aad27 and fixed in 7.3-rc1 with commit a02fa031b9520e46e98bff17e12b472eba770670

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2026-90258
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/pinctrl/airoha/pinctrl-airoha.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/fda7350f257e59eee1bc7537c202e36bd56aea97
	https://git.kernel.org/stable/c/2c968c11592b478af4fbcb9453a0e1ac664c2e90
	https://git.kernel.org/stable/c/a02fa031b9520e46e98bff17e12b472eba770670