CVE-2026-64230

/// Technical description

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

regulator: tps65219: fix irq_data.rdev not being assigned

Commit 64a6b577490c ("regulator: tps65219: Remove debugging helper

function") removed the tps65219_get_rdev_by_name() helper along with

the irq_data.rdev assignment that depended on it. This left

irq_data.rdev uninitialized for all IRQs, causing undefined behavior

when regulator_notifier_call_chain() is called from the IRQ handler:

Internal error: Oops: 0000000096000004

pc : regulator_notifier_call_chain

lr : tps65219_regulator_irq_handler

Call trace:

regulator_notifier_call_chain

tps65219_regulator_irq_handler

handle_nested_irq

regmap_irq_thread

irq_thread_fn

irq_thread

kthread

ret_from_fork

Instead of restoring a dedicated lookup array, restructure the probe

function to combine regulator registration with IRQ registration in

the same loop. This way the rdev returned by devm_regulator_register()

is naturally available for ass

/// 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