CVE-2026-52976

Local privilege escalation via stale queue links

Published Jun 24, 2026 · Updated Jun 24, 2026

Use-after-free in the Linux kernel drm/xe driver allows local users to gain elevated privileges or crash the system through queue creation. xe_exec_queue_create_ioctl() frees an execution queue after error paths leave it linked in either the VM compute-queue list or the hardware-engine-group list. Reachability requires low-privileged local access to an active Xe graphics device and either preempt-fence mode or a subsequent xa_alloc() failure; stale-list dereferences then corrupt kernel memory.

CVSS severity7.8
High
EPSS probability0.14%
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 the Linux kernel drm/xe driver allows local users to gain elevated privileges or crash the system through queue creation. xe_exec_queue_create_ioctl() frees an execution queue after error paths leave it linked in either the VM compute-queue list or the hardware-engine-group list. Reachability requires low-privileged local access to an active Xe graphics device and either preempt-fence mode or a subsequent xa_alloc() failure; stale-list dereferences then corrupt kernel memory.

The record

CVE
CVE-2026-52976
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-416, CWE-825, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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=6.12
  2. Affected versionversion=7970cb36966c9b9183255dc097ae0446300eebcf <1be55646d8a2035343b012dcb12210db7bb8b056
  3. Affected versionversion=7970cb36966c9b9183255dc097ae0446300eebcf <753b149d5a433eb19e0c1b0eb4526a6e26120d1f
  4. Affected versionversion=7970cb36966c9b9183255dc097ae0446300eebcf <f3cc22d4df3ed58439ea7e21daa54c3608e03b78
  5. Affected versionversion=7970cb36966c9b9183255dc097ae0446300eebcf <f93b00161213a0fe9f7ff1d8498ee5ca9e0a5c43

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.12; version=7970cb36966c9b9183255dc097ae0446300eebcf <1be55646d8a2035343b012dcb12210db7bb8b056; version=7970cb36966c9b9183255dc097ae0446300eebcf <753b149d5a433eb19e0c1b0eb4526a6e26120d1f; version=7970cb36966c9b9183255dc097ae0446300eebcf <f3cc22d4df3ed58439ea7e21daa54c3608e03b78; version=7970cb36966c9b9183255dc097ae0446300eebcf <f93b00161213a0fe9f7ff1d8498ee5ca9e0a5c43

Published CVSS scores

7.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0Red Hat SADPCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/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

CWE-416Use After Free
CWE-825Expired Pointer Dereference
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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