CVE-2026-68244

Local service interruption via i915 context memory leak

Published Aug 10, 2026 · Updated Aug 10, 2026

Memory leak in Linux kernel 5.15 and affected later branches allows local users to interrupt service through crafted i915 context extensions. The i915 GEM context-creation error path retains the dynamically allocated siblings array when BALANCE or PARALLEL_SUBMIT succeeds and a subsequent user extension fails. Exploitation requires low-privileged local access and a system exposing the Intel i915 graphics driver; repeated failures can consume kernel memory and degrade availability.

CVSS severity5.5
Medium
EPSS probability0.17%
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

Memory leak in Linux kernel 5.15 and affected later branches allows local users to interrupt service through crafted i915 context extensions. The i915 GEM context-creation error path retains the dynamically allocated siblings array when BALANCE or PARALLEL_SUBMIT succeeds and a subsequent user extension fails. Exploitation requires low-privileged local access and a system exposing the Intel i915 graphics driver; repeated failures can consume kernel memory and degrade availability.

The record

CVE
CVE-2026-68244
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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=5.15
  2. Affected versionversion=d4433c7600f794623d6802395542cf4ca4f1b1f9 <37951ce1567ccf8c86c7a1b8fb7d55a32c821b87
  3. Affected versionversion=d4433c7600f794623d6802395542cf4ca4f1b1f9 <6cdbef8f60f313684e641628d64aa85960080d3f
  4. Affected versionversion=d4433c7600f794623d6802395542cf4ca4f1b1f9 <8431a4d7ff95c7f9c6fb1dbbbc9cdadf29d4f6d5
  5. Affected versionversion=d4433c7600f794623d6802395542cf4ca4f1b1f9 <eed3de2acf6aa5154d49098b026710b646db67ee
  6. Affected versionversion=d4433c7600f794623d6802395542cf4ca4f1b1f9 <f014702fbd48d06a3d7a06e4bb4075d406376cf0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.15; version=d4433c7600f794623d6802395542cf4ca4f1b1f9 <37951ce1567ccf8c86c7a1b8fb7d55a32c821b87; version=d4433c7600f794623d6802395542cf4ca4f1b1f9 <6cdbef8f60f313684e641628d64aa85960080d3f; version=d4433c7600f794623d6802395542cf4ca4f1b1f9 <8431a4d7ff95c7f9c6fb1dbbbc9cdadf29d4f6d5; version=d4433c7600f794623d6802395542cf4ca4f1b1f9 <eed3de2acf6aa5154d49098b026710b646db67ee; version=d4433c7600f794623d6802395542cf4ca4f1b1f9 <f014702fbd48d06a3d7a06e4bb4075d406376cf0

Published CVSS scores

5.5Oracle LinuxCVSS: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.

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

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