CVE-2024-26667

Kernel crash via unchecked hw_pp dereference

Published Apr 2, 2024 · Updated May 11, 2026

NULL pointer dereference in the MSM DPU display driver in Linux allows local users to crash the kernel during encoder cleanup. The dpu_encoder_helper_phys_cleanup function assumes hw_pp is valid and dereferences it inside a conditional cleanup block without first checking for NULL. The path requires low-privileged local access and an MSM DPU writeback cleanup state in which hw_pp is absent; successful exploitation interrupts the host.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the MSM DPU display driver in Linux allows local users to crash the kernel during encoder cleanup. The dpu_encoder_helper_phys_cleanup function assumes hw_pp is valid and dereferences it inside a conditional cleanup block without first checking for NULL. The path requires low-privileged local access and an MSM DPU writeback cleanup state in which hw_pp is absent; successful exploitation interrupts the host.

The record

CVE
CVE-2024-26667
Published
Apr 2, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-459, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 2, 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=5.19
  2. Affected versionversion=ae4d721ce10057a4aa9f0d253e0d460518a9ef75 <79592a6e7bdc1d05460c95f891f5e5263a107af8
  3. Affected versionversion=ae4d721ce10057a4aa9f0d253e0d460518a9ef75 <7f3d03c48b1eb6bc45ab20ca98b8b11be25f9f52
  4. Affected versionversion=ae4d721ce10057a4aa9f0d253e0d460518a9ef75 <eb4f56f3ff5799ca754ae6d811803a63fe25a4a2
  5. Affected versionversion=ae4d721ce10057a4aa9f0d253e0d460518a9ef75 <fb8bfc6ea3cd8c5ac3d35711d064e2f6646aec17

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.19; version=ae4d721ce10057a4aa9f0d253e0d460518a9ef75 <79592a6e7bdc1d05460c95f891f5e5263a107af8; version=ae4d721ce10057a4aa9f0d253e0d460518a9ef75 <7f3d03c48b1eb6bc45ab20ca98b8b11be25f9f52; version=ae4d721ce10057a4aa9f0d253e0d460518a9ef75 <eb4f56f3ff5799ca754ae6d811803a63fe25a4a2; version=ae4d721ce10057a4aa9f0d253e0d460518a9ef75 <fb8bfc6ea3cd8c5ac3d35711d064e2f6646aec17

Published CVSS scores

5.5NIST NVDCVSS: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

CWE-459Incomplete Cleanup
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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