CVE-2024-42227

Service interruption via overlapping display watermark copy

Published Jul 30, 2024 · Updated May 11, 2026

A memory overlap flaw in Linux kernel 6.7 through 6.9.8 allows local users to interrupt service through AMD display mode programming. The dml_core_mode_programming routine calls memcpy on the Watermark object even though mode_lib->mp.Watermark and locals->Watermark resolve to the same address, making the overlapping copy undefined. The path requires low privileges and an affected AMD display configuration; the published impact is service interruption, not data disclosure or modification.

CVSS severity4.7
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A memory overlap flaw in Linux kernel 6.7 through 6.9.8 allows local users to interrupt service through AMD display mode programming. The dml_core_mode_programming routine calls memcpy on the Watermark object even though mode_lib->mp.Watermark and locals->Watermark resolve to the same address, making the overlapping copy undefined. The path requires low privileges and an affected AMD display configuration; the published impact is service interruption, not data disclosure or modification.

The record

CVE
CVE-2024-42227
Published
Jul 30, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 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=6.7
  2. Affected versionversion=7966f319c66d9468623c6a6a017ecbc0dd79be75 <9342da15f2491d8600eca89c8e0da08876fb969b
  3. Affected versionversion=7966f319c66d9468623c6a6a017ecbc0dd79be75 <f1fd8a0a54e6d23a6d16ee29159f247862460fd1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=7966f319c66d9468623c6a6a017ecbc0dd79be75 <9342da15f2491d8600eca89c8e0da08876fb969b; version=7966f319c66d9468623c6a6a017ecbc0dd79be75 <f1fd8a0a54e6d23a6d16ee29159f247862460fd1

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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.

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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