CVE-2025-37901

/// Technical description

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

irqchip/qcom-mpm: Prevent crash when trying to handle non-wake GPIOs

On Qualcomm chipsets not all GPIOs are wakeup capable. Those GPIOs do not

have a corresponding MPM pin and should not be handled inside the MPM

driver. The IRQ domain hierarchy is always applied, so it's required to

explicitly disconnect the hierarchy for those. The pinctrl-msm driver marks

these with GPIO_NO_WAKE_IRQ. qcom-pdc has a check for this, but

irq-qcom-mpm is currently missing the check. This is causing crashes when

setting up interrupts for non-wake GPIOs:

root@rb1:~# gpiomon -c gpiochip1 10

irq: IRQ159: trimming hierarchy from :soc@0:interrupt-controller@f200000-1

Unable to handle kernel paging request at virtual address ffff8000a1dc3820

Hardware name: Qualcomm Technologies, Inc. Robotics RB1 (DT)

pc : mpm_set_type+0x80/0xcc

lr : mpm_set_type+0x5c/0xcc

Call trace:

mpm_set_type+0x80/0xcc (P)

qcom_mpm_set_type+0

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References