CVE-2024-27433

Kernel memory corruption via redundant driver free

Published May 17, 2024 · Updated May 11, 2026

Double free in the MediaTek clock driver in Linux allows local users to corrupt kernel memory during removal of an affected device. The clk_mt8135_apmixed_probe function gives clk_data a device-managed lifetime, but the removal callback explicitly frees the same allocation before device cleanup frees it again. Triggering the flaw requires a system using the affected MediaTek clock driver and control of its removal path; the bounded consequence includes a kernel crash.

CVSS severity7.8
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in the MediaTek clock driver in Linux allows local users to corrupt kernel memory during removal of an affected device. The clk_mt8135_apmixed_probe function gives clk_data a device-managed lifetime, but the removal callback explicitly frees the same allocation before device cleanup frees it again. Triggering the flaw requires a system using the affected MediaTek clock driver and control of its removal path; the bounded consequence includes a kernel crash.

The record

CVE
CVE-2024-27433
Published
May 17, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 2024CVE 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=6.4
  2. Affected versionversion=c50e2ea6507bcf5a4475f821fc03dd1fdcb894a7 <a32e88f2b20259f5fe4f8eed598bbc85dc4879ed
  3. Affected versionversion=c50e2ea6507bcf5a4475f821fc03dd1fdcb894a7 <de3340533bd68a7b3d6be1841b8eb3fa6c762fe6
  4. Affected versionversion=c50e2ea6507bcf5a4475f821fc03dd1fdcb894a7 <f3633fed984f1db106ff737a0bb52fadb2d89ac7
  5. Affected versionversion=c50e2ea6507bcf5a4475f821fc03dd1fdcb894a7 <fa761ce7a1d15cca1a306b3635f81a22b15fee5b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.4; version=c50e2ea6507bcf5a4475f821fc03dd1fdcb894a7 <a32e88f2b20259f5fe4f8eed598bbc85dc4879ed; version=c50e2ea6507bcf5a4475f821fc03dd1fdcb894a7 <de3340533bd68a7b3d6be1841b8eb3fa6c762fe6; version=c50e2ea6507bcf5a4475f821fc03dd1fdcb894a7 <f3633fed984f1db106ff737a0bb52fadb2d89ac7; version=c50e2ea6507bcf5a4475f821fc03dd1fdcb894a7 <fa761ce7a1d15cca1a306b3635f81a22b15fee5b

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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

CWE-415Double Free
T1499.004Application or System Exploitation

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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