CVE-2026-90064

GPU hang via incorrect scratch-VM fault acceptance

Published Sep 17, 2026 · Updated Sep 17, 2026

Fault handling in the Xe driver in Linux 7.1 allows local users to hang the GPU via non-fault-mode scratch VM page faults. In drivers/gpu/drm/xe/xe_pagefault.c, ASID lookup admits scratch-enabled dma-fence VMs, and the handler reports success for an already valid VMA without resolving the fault. Triggering requires access to the affected GPU driver and this fault condition; the GPU then retries indefinitely, with no disclosed data access or modification.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Oct 20, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Fault handling in the Xe driver in Linux 7.1 allows local users to hang the GPU via non-fault-mode scratch VM page faults. In drivers/gpu/drm/xe/xe_pagefault.c, ASID lookup admits scratch-enabled dma-fence VMs, and the handler reports success for an already valid VMA without resolving the fault. Triggering requires access to the affected GPU driver and this fault condition; the GPU then retries indefinitely, with no disclosed data access or modification.

The record

CVE
CVE-2026-90064
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=7.1
  2. Affected versionversion=ad9843aac91a1eda12912a4922042ea04cfc29dc <5e977521d21717edb8e91d004434697d6e3f248c
  3. Affected versionversion=ad9843aac91a1eda12912a4922042ea04cfc29dc <905d648e97ef3a291f71a935a7fab0133f27f0f7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=7.1; version=ad9843aac91a1eda12912a4922042ea04cfc29dc <5e977521d21717edb8e91d004434697d6e3f248c; version=ad9843aac91a1eda12912a4922042ea04cfc29dc <905d648e97ef3a291f71a935a7fab0133f27f0f7

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Amazon 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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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