CVE-2022-49463

Service interruption via thermal-driver reference-count leak

Published Feb 26, 2025 · Updated May 11, 2026

A reference-count leak in the Linux kernel i.MX SCU thermal driver allows local users to exhaust memory through repeated device probing. The imx_sc_thermal_probe function retains the device-tree node returned by of_find_node_by_name because it omits the matching of_node_put call. Reachability requires local low-privileged access and an i.MX system using this thermal driver; the reported consequence is limited to availability.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A reference-count leak in the Linux kernel i.MX SCU thermal driver allows local users to exhaust memory through repeated device probing. The imx_sc_thermal_probe function retains the device-tree node returned by of_find_node_by_name because it omits the matching of_node_put call. Reachability requires local low-privileged access and an i.MX system using this thermal driver; the reported consequence is limited to availability.

The record

CVE
CVE-2022-49463
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=5.7
  2. Affected versionversion=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <09700c504d8e63faffd2a2235074e8c5d130cb8f
  3. Affected versionversion=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <0ec10303c10833c1bcba7a1bde2f297e494d5464
  4. Affected versionversion=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <3ade442ea5d3512a3c67984489ab4d8a6fb3b29f
  5. Affected versionversion=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <8bbf522a2c51ef939d0e8835e236bfcd252193af
  6. Affected versionversion=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <ec0925b731697db7cab5944a3e55d2d58bb3d075

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.7; version=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <09700c504d8e63faffd2a2235074e8c5d130cb8f; version=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <0ec10303c10833c1bcba7a1bde2f297e494d5464; version=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <3ade442ea5d3512a3c67984489ab4d8a6fb3b29f; version=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <8bbf522a2c51ef939d0e8835e236bfcd252193af; version=e20db70dba1c0783b9878ce37171ad560b1ebaf3 <ec0925b731697db7cab5944a3e55d2d58bb3d075

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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