CVE-2026-93142

Kernel crash via unchecked thermal-zone registration failure

Published Sep 17, 2026 · Updated Sep 17, 2026

Error-pointer dereference in Linux's R-Car thermal driver allows local users to crash the kernel during failed thermal-zone registration. The probe routine calls thermal_zone_device_enable() on priv->zone before checking whether thermal_zone_device_register_with_trips() returned an error pointer. The failure requires the affected driver initialization path without OF thermal and unsuccessful registration; public upstream evidence does not establish an attacker-controlled registration-failure trigger.

CVSS severity1.9
Low
EPSS probability0.21%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Error-pointer dereference in Linux's R-Car thermal driver allows local users to crash the kernel during failed thermal-zone registration. The probe routine calls thermal_zone_device_enable() on priv->zone before checking whether thermal_zone_device_register_with_trips() returned an error pointer. The failure requires the affected driver initialization path without OF thermal and unsuccessful registration; public upstream evidence does not establish an attacker-controlled registration-failure trigger.

The record

CVE
CVE-2026-93142
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.9
  2. Affected versionversion=bbcf90c0646ac797700269fa6645a6a46466c79f <35bf61798e7d4abf39667d98f298f793b3dd9bbe
  3. Affected versionversion=bbcf90c0646ac797700269fa6645a6a46466c79f <623349a18d4c6e6add7876553c0cb6947c8d92e6
  4. Affected versionversion=bbcf90c0646ac797700269fa6645a6a46466c79f <810875c5996f731961fc5ee1bd24e711f2e8fe78
  5. Affected versionversion=bbcf90c0646ac797700269fa6645a6a46466c79f <a85bcd0c7ef66e3404b3c99e5589c5ea622a757e
  6. Affected versionversion=bbcf90c0646ac797700269fa6645a6a46466c79f <d67607e7749527850619a10d3ed033b02dcea516
  7. Affected versionversion=bbcf90c0646ac797700269fa6645a6a46466c79f <dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=5.9; version=bbcf90c0646ac797700269fa6645a6a46466c79f <35bf61798e7d4abf39667d98f298f793b3dd9bbe; version=bbcf90c0646ac797700269fa6645a6a46466c79f <623349a18d4c6e6add7876553c0cb6947c8d92e6; version=bbcf90c0646ac797700269fa6645a6a46466c79f <810875c5996f731961fc5ee1bd24e711f2e8fe78; version=bbcf90c0646ac797700269fa6645a6a46466c79f <a85bcd0c7ef66e3404b3c99e5589c5ea622a757e; version=bbcf90c0646ac797700269fa6645a6a46466c79f <d67607e7749527850619a10d3ed033b02dcea516; version=bbcf90c0646ac797700269fa6645a6a46466c79f <dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d

Published CVSS scores

1.9SUSECVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
1.9Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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