---
id: CVE-2026-93142
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  thermal/drivers/rcar: Fix error checking in probe()

  This code accidentally calls thermal_zone_device_enable() before checking
  whether thermal_zone_device_register_with…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  thermal/drivers/rcar: Fix error checking in probe()

  This code accidentally calls thermal_zone_device_enable() before checking
  whether thermal_zone_device_register_with…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= bbcf90c0646ac797700269fa6645a6a46466c79f <
    a85bcd0c7ef66e3404b3c99e5589c5ea622a757e
  - >-
    Linux >= bbcf90c0646ac797700269fa6645a6a46466c79f <
    810875c5996f731961fc5ee1bd24e711f2e8fe78
  - >-
    Linux >= bbcf90c0646ac797700269fa6645a6a46466c79f <
    623349a18d4c6e6add7876553c0cb6947c8d92e6
  - >-
    Linux >= bbcf90c0646ac797700269fa6645a6a46466c79f <
    35bf61798e7d4abf39667d98f298f793b3dd9bbe
  - >-
    Linux >= bbcf90c0646ac797700269fa6645a6a46466c79f <
    d67607e7749527850619a10d3ed033b02dcea516
  - >-
    Linux >= bbcf90c0646ac797700269fa6645a6a46466c79f <
    dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d
  - Linux 5.9
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:18:09.267'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93142'
references:
  - url: 'https://git.kernel.org/stable/c/35bf61798e7d4abf39667d98f298f793b3dd9bbe'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/623349a18d4c6e6add7876553c0cb6947c8d92e6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/810875c5996f731961fc5ee1bd24e711f2e8fe78'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a85bcd0c7ef66e3404b3c99e5589c5ea622a757e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d67607e7749527850619a10d3ed033b02dcea516'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.744Z'
epss: 0.00215
epssPercentile: 0.10551
---

## Overview

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

thermal/drivers/rcar: Fix error checking in probe()

This code accidentally calls thermal_zone_device_enable() before checking
whether thermal_zone_device_register_with_trips() failed.  Move the call
until later to avoid an error pointer dereference of "priv->zone".

The driver works differently depending on if we are using OF thermal or
not.  We use thermal_add_hwmon_sysfs() if we are using OF thermal and
call thermal_zone_device_enable() if not.  We can share same error check
for if either of these fail.

Moving the thermal_zone_device_enable() call is a bit cleaner as well.
The original code used a three step process to cleanup:
1. Call thermal_zone_device_unregister() to cleanup.
2. Set priv->zone to an error pointer to preserve the error code.
3. Set priv->zone to NULL to avoid a second call to
   thermal_zone_device_unregister() in the rcar_thermal_remove()
   function.

Now we can just do a direct goto error_unregister and rcar_thermal_remove()
handles the cleanup properly.

## Remediation

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