CVE-2026-68384

VF migration state corruption via CCS synchronization race

Published Aug 10, 2026 · Updated Aug 10, 2026

Race condition in the Linux kernel 6.18 allows local users to corrupt VF CCS migration state during an in-flight buffer-object move. xe_bo_move submits copy or clear work before attaching CCS batch buffers and detaches them before the copy fence signals, exposing partially copied metadata to save and restore processing. Triggering requires Intel Xe SR-IOV VF migration to pause execution during the copy, leaving the migrated graphics state inconsistent.

CVSS severity7.8
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux kernel 6.18 allows local users to corrupt VF CCS migration state during an in-flight buffer-object move. xe_bo_move submits copy or clear work before attaching CCS batch buffers and detaches them before the copy fence signals, exposing partially copied metadata to save and restore processing. Triggering requires Intel Xe SR-IOV VF migration to pause execution during the copy, leaving the migrated graphics state inconsistent.

The record

CVE
CVE-2026-68384
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
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

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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=6.18
  2. Affected versionversion=864690cf4dd62482b6dd049d82c509886c904303 <35ba43b541117bfb595e4b807ba447cf4335cc7d
  3. Affected versionversion=864690cf4dd62482b6dd049d82c509886c904303 <56441f9e08ad68697295b8835266d2bc48ab59b5
  4. Affected versionversion=864690cf4dd62482b6dd049d82c509886c904303 <f2ebfd5cc87f1393a30c8b8b0a6c20cb22cffa97

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.18; version=864690cf4dd62482b6dd049d82c509886c904303 <35ba43b541117bfb595e4b807ba447cf4335cc7d; version=864690cf4dd62482b6dd049d82c509886c904303 <56441f9e08ad68697295b8835266d2bc48ab59b5; version=864690cf4dd62482b6dd049d82c509886c904303 <f2ebfd5cc87f1393a30c8b8b0a6c20cb22cffa97

Published CVSS scores

7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.6Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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