CVE-2024-42120

Kernel memory access via unchecked pipe offset

Published Jul 30, 2024 · Updated Aug 5, 2026

Out-of-bounds access in the AMD display driver in Linux allows local users to reach memory outside pipe_ctx during vblank handling. In dce110_vblank_set, an unsigned offset derived from dal_irq_src indexes the fixed-size pipe_ctx array before any MAX_PIPES bounds check. Exposure requires local low-privileged access and the AMD display path; the resulting invalid timing-generator pointer can destabilize kernel execution.

CVSS severity7.8
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Out-of-bounds access in the AMD display driver in Linux allows local users to reach memory outside pipe_ctx during vblank handling. In dce110_vblank_set, an unsigned offset derived from dal_irq_src indexes the fixed-size pipe_ctx array before any MAX_PIPES bounds check. Exposure requires local low-privileged access and the AMD display path; the resulting invalid timing-generator pointer can destabilize kernel execution.

The record

CVE
CVE-2024-42120
Published
Jul 30, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-129
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=4.15
  2. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <0b3702f9d43d163fd05e43b7d7e22e766dbef329
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <5396a70e8cf462ec5ccf2dc8de103c79de9489e6
  4. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <96bf81cc1bd058bb8af6e755a548e926e934dfd1
  5. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <b2e9abc95583ac7bbb2c47da4d476a798146dfd6
  6. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <c5ec2afeeee4c91cebc4eff6d4f1ecf4047259f4
  7. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <d2c3645a4a5ae5d933b4116c305d9d82b8199dbf

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <0b3702f9d43d163fd05e43b7d7e22e766dbef329; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <5396a70e8cf462ec5ccf2dc8de103c79de9489e6; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <96bf81cc1bd058bb8af6e755a548e926e934dfd1; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <b2e9abc95583ac7bbb2c47da4d476a798146dfd6; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <c5ec2afeeee4c91cebc4eff6d4f1ecf4047259f4; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <d2c3645a4a5ae5d933b4116c305d9d82b8199dbf

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

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

CWE-129Improper Validation of Array Index

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo