---
id: CVE-2026-89504
title: >-
  regulator: as3722_get_regulator_dt_data: fix premature of_node_put leaving
  dangling of_node pointer
summary: >-
  In the Linux kernel, the following vulnerability has been resolved:


  regulator: as3722_get_regulator_dt_data: fix premature of_node_put leaving
  dangling of_node pointer


  In as3722_get_regulator_dt_data(), of_get_child_by_name() acquires …
severity: high
cvss: 8.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-825
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= bc407334e9a6a745de5360395282beb2690adf48 <
    d9b1407477fb736978b04108073180ca84958936
  - >-
    Linux >= bc407334e9a6a745de5360395282beb2690adf48 <
    bd5606e9da1a01a61c7d2f5df36243414a0142be
  - >-
    Linux >= bc407334e9a6a745de5360395282beb2690adf48 <
    0bde4f140e90f87ebd49cd9c884c4bb3f19fe931
  - >-
    Linux >= bc407334e9a6a745de5360395282beb2690adf48 <
    eda08b6bd64f01ca9defbfcc9e0c3e30f46cfc02
  - >-
    Linux >= bc407334e9a6a745de5360395282beb2690adf48 <
    d3c1316d84e0a036890b00ae6e4c0b0b80f70c25
  - >-
    Linux >= bc407334e9a6a745de5360395282beb2690adf48 <
    95342d26f9c6b68a46ab57fa48428a3c4a423dd7
  - >-
    Linux >= bc407334e9a6a745de5360395282beb2690adf48 <
    8648e29e5c01b6b677c704049189287e27255ccb
  - >-
    Linux >= bc407334e9a6a745de5360395282beb2690adf48 <
    f9324d670ae0b88cbfb0aa48fcaefa5baeb8da4c
  - Linux 3.13
published: '2026-09-11'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:47:55.766Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-89504'
references:
  - url: 'https://git.kernel.org/stable/c/d9b1407477fb736978b04108073180ca84958936'
  - url: 'https://git.kernel.org/stable/c/bd5606e9da1a01a61c7d2f5df36243414a0142be'
  - url: 'https://git.kernel.org/stable/c/0bde4f140e90f87ebd49cd9c884c4bb3f19fe931'
  - url: 'https://git.kernel.org/stable/c/eda08b6bd64f01ca9defbfcc9e0c3e30f46cfc02'
  - url: 'https://git.kernel.org/stable/c/d3c1316d84e0a036890b00ae6e4c0b0b80f70c25'
  - url: 'https://git.kernel.org/stable/c/95342d26f9c6b68a46ab57fa48428a3c4a423dd7'
  - url: 'https://git.kernel.org/stable/c/8648e29e5c01b6b677c704049189287e27255ccb'
  - url: 'https://git.kernel.org/stable/c/f9324d670ae0b88cbfb0aa48fcaefa5baeb8da4c'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89504.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89504'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532102'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89504'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89504'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89504.mbox
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00142
epssPercentile: 0.03451
scores:
  cna: 8.4
  vendor: 5.5
ingestedAt: '2026-09-14T15:23:07.452Z'
---

## Overview

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

regulator: as3722_get_regulator_dt_data: fix premature of_node_put leaving dangling of_node pointer

In as3722_get_regulator_dt_data(), of_get_child_by_name() acquires a
reference on np, which is then assigned to pdev->dev.of_node. The
function immediately calls of_node_put(np), releasing the reference and
leaving pdev->dev.of_node as a dangling pointer.

Remove the of_node_put(np) call to let the device hold the reference.

## Affected

- `Linux >= bc407334e9a6a745de5360395282beb2690adf48 < d9b1407477fb736978b04108073180ca84958936`
- `Linux >= bc407334e9a6a745de5360395282beb2690adf48 < bd5606e9da1a01a61c7d2f5df36243414a0142be`
- `Linux >= bc407334e9a6a745de5360395282beb2690adf48 < 0bde4f140e90f87ebd49cd9c884c4bb3f19fe931`
- `Linux >= bc407334e9a6a745de5360395282beb2690adf48 < eda08b6bd64f01ca9defbfcc9e0c3e30f46cfc02`
- `Linux >= bc407334e9a6a745de5360395282beb2690adf48 < d3c1316d84e0a036890b00ae6e4c0b0b80f70c25`
- `Linux >= bc407334e9a6a745de5360395282beb2690adf48 < 95342d26f9c6b68a46ab57fa48428a3c4a423dd7`
- `Linux >= bc407334e9a6a745de5360395282beb2690adf48 < 8648e29e5c01b6b677c704049189287e27255ccb`
- `Linux >= bc407334e9a6a745de5360395282beb2690adf48 < f9324d670ae0b88cbfb0aa48fcaefa5baeb8da4c`
- `Linux 3.13`

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89504.json)