---
cve: "CVE-2026-64230"
severity: "LOW"
cvss: 3.1
epss: "12%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-07-24 16:16:52"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T08:51:22+02:00"
---

# CVE-2026-64230

> 3.1 LOW

## Beschreibung

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.

## Patch verfügbar (OSV)

- Kernel ≥ 6.18.34
- Kernel ≥ 7.0.11

## Referenzen

- <https://git.kernel.org/stable/c/6827647fd2dcf4e7f355478a42e82f51e0b5344c>
- <https://git.kernel.org/stable/c/b986f88b22a5374191c195c073350bbeb1bb6518>
- <https://git.kernel.org/stable/c/f9b2d3b703d13df50c630997dfdc25648e96db0d>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-64230) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_