PT-2026-64345 · Linux · Linux
CVE-2026-64230
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Published
2026-07-24
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Updated
2026-07-24
None
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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.
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Related Identifiers
Affected Products
Linux