CVE-2026-64230 is a vulnerability in Linux Kernel
Published on July 24, 2026
regulator: tps65219: fix irq_data.rdev not being assigned
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 assigning to irq_data.rdev without any
auxiliary data structure.
Non-regulator IRQs (SENSOR, TIMEOUT) that don't correspond to any
registered regulator are registered with rdev=NULL, and the IRQ handler
is protected with a NULL check to avoid crashing.
Products Associated with CVE-2026-64230
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Affected Versions
Linux:- Version 64a6b577490c1c71f1a3bbdb3844717815214621 and below 6827647fd2dcf4e7f355478a42e82f51e0b5344c is affected.
- Version 64a6b577490c1c71f1a3bbdb3844717815214621 and below b986f88b22a5374191c195c073350bbeb1bb6518 is affected.
- Version 64a6b577490c1c71f1a3bbdb3844717815214621 and below f9b2d3b703d13df50c630997dfdc25648e96db0d is affected.
- Version 6.14 is affected.
- Before 6.14 is unaffected.
- Version 6.18.34, <= 6.18.* is unaffected.
- Version 7.0.11, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.