CVE-2024-26939

Local privilege escalation via i915 VMA use-after-free

Published May 1, 2024 · Updated Aug 5, 2026

Use-after-free in i915 VMA handling in Linux allows local users to escalate privileges through a GT parking and retirement race. The __active_retire() path can continue through __i915_vma_retire() after concurrent i915_vma_destroy() frees the VMA because GT wakerefs are released before deactivation completes. An unprivileged local process with access to the i915 graphics path can race those operations, enabling kernel memory corruption, a system crash, or elevated privileges.

CVSS severityUnavailable
Unscored
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in i915 VMA handling in Linux allows local users to escalate privileges through a GT parking and retirement race. The __active_retire() path can continue through __i915_vma_retire() after concurrent i915_vma_destroy() frees the VMA because GT wakerefs are released before deactivation completes. An unprivileged local process with access to the i915 graphics path can race those operations, enabling kernel memory corruption, a system crash, or elevated privileges.

The record

CVE
CVE-2024-26939
Published
May 1, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 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

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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=d93939730347360db0afe6a4367451b6f84ab7b1 <0e45882ca829b26b915162e8e86dbb1095768e9e
  3. Affected versionversion=d93939730347360db0afe6a4367451b6f84ab7b1 <59b2626dd8c8a2e13f18054b3530e0c00073d79f
  4. Affected versionversion=d93939730347360db0afe6a4367451b6f84ab7b1 <5e3eb862df9f972ab677fb19e0d4b9b1be8db7b5
  5. Affected versionversion=d93939730347360db0afe6a4367451b6f84ab7b1 <704edc9252f4988ae1ad7dafa23d0db8d90d7190

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.19; version=d93939730347360db0afe6a4367451b6f84ab7b1 <0e45882ca829b26b915162e8e86dbb1095768e9e; version=d93939730347360db0afe6a4367451b6f84ab7b1 <59b2626dd8c8a2e13f18054b3530e0c00073d79f; version=d93939730347360db0afe6a4367451b6f84ab7b1 <5e3eb862df9f972ab677fb19e0d4b9b1be8db7b5; version=d93939730347360db0afe6a4367451b6f84ab7b1 <704edc9252f4988ae1ad7dafa23d0db8d90d7190

Published CVSS scores

No CVSS assessment is available in this record.

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-416Use After Free
T1068Exploitation for Privilege Escalation

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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