---
id: CVE-2026-93273
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  regulator: tps6594: Fix device node reference leaks in multiphase loop

  In tps6594_regulator_probe(), the multi-phase configuration loop calls
  of_find_node_by_name() to…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  regulator: tps6594: Fix device node reference leaks in multiphase loop

  In tps6594_regulator_probe(), the multi-phase configuration loop calls
  of_find_node_by_name() to…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 <
    28f70e0aa767a8f022c70ed75ecef227dc668121
  - >-
    Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 <
    4a672bff99f6b58dde419fd12b3a53da137f032d
  - >-
    Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 <
    68ce4f8223b78f8616ec7f4a02c38988eae627d2
  - >-
    Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 <
    fceac25487b21d6db940d2aed368e465d89cd1f4
  - >-
    Linux >= f17ccc5deb4d024bb52fd3433471e77ab7ae9ad8 <
    7fd28093b3effc4f92566466df364622830ec608
  - Linux 6.5
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T16:17:24.400'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93273'
references:
  - url: 'https://git.kernel.org/stable/c/28f70e0aa767a8f022c70ed75ecef227dc668121'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4a672bff99f6b58dde419fd12b3a53da137f032d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/68ce4f8223b78f8616ec7f4a02c38988eae627d2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7fd28093b3effc4f92566466df364622830ec608'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fceac25487b21d6db940d2aed368e465d89cd1f4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-24T16:47:15.839Z'
epss: 0.00186
epssPercentile: 0.0734
---

## Overview

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

regulator: tps6594: Fix device node reference leaks in multiphase loop

In tps6594_regulator_probe(), the multi-phase configuration loop calls
of_find_node_by_name() to find buck nodes by name, and of_get_parent()
twice to navigate to the PMIC parent node. None of the acquired node
references (np, intermediate parent, np_pmic_parent) are ever released
via of_node_put(), causing a reference leak on every loop iteration.

Additionally, of_find_node_by_name() can return NULL, but the result was
immediately passed to of_node_full_name() and of_get_parent() without a
NULL check, which could lead to a NULL pointer dereference.

Fix this by:
- Adding a NULL check for np after of_find_node_by_name()
- Storing the intermediate parent node in a local variable np_parent
- Calling of_node_put() on np, np_parent and np_pmic_parent at the
  end of each loop iteration

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.