# CVE-2026-64230: linux: In the Linux kernel, the following vulnerability has been resolved:  regulator: tps65219: fix irq_data.rdev not being...

CVE-2026-64230 is fixed in linux on 1 platform by DEBIAN-CVE-2026-64230 (version 7.0.12-1), released July 25, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-64230
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 24, 2026

## 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 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.0.12-1 | [DEBIAN-CVE-2026-64230](https://patchblox.com/security/data/fix/linux/debian-cve-2026-64230.md) | Jul 25, 2026 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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