VulnerabilityPublished 27 Jul 2026Updated 7 Sep 2026

CVE-2026-64517: Linux kernel · drm/xe/gsc: Fix double-free of managed BO in error path

Affects Linux kernelSource GCVE Database

Not known to be exploited · fixed in 7.0.0-1010.10 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:05 UTC

Severity

Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 7.0.0-1010.10, 7.0.0-1009.9, 7.0.0-1008.8 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 27 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-hw28-fxfq-92xc

What to do

Upgrade Linux kernel to 7.0.0-1010.10, 7.0.0-1009.9, 7.0.0-1008.8 or 7.0.0-28.28.

Affected software

Product	Affected	Fixed in
linux-hwe-edge	Affected <7.0.0-28.28 <7.0.0-1009.9 <7.0.0-1010.10 <7.0.0-1008.8	Fixed in 7.0.0-28.28 7.0.0-1009.9 7.0.0-1010.10 7.0.0-1008.8

AI-suggested

A patch is available and should be applied by updating to the fixed linux-hwe-edge kernel versions as specified by the vendor. After applying the update, a system reboot is required to complete remediation. Due to an ABI change, recompilation and reinstallation of third-party kernel modules may be necessary. Follow the vendor's update instructions carefully to ensure full mitigation.

Description

A double-free vulnerability in the Linux kernel's drm/xe/gsc subsystem was fixed. The issue involved an error path in xe_gsc_init_post_hwconfig() that explicitly freed a buffer object (BO) already managed by devm cleanup, causing a double-free during probe failure. This flaw has been addressed by removing the explicit free and relying on devm to handle cleanup. The vulnerability affects multiple versions of the linux-hwe-edge kernel prior to various 7.0.0 builds. A patch is available and should be applied to prevent potential system compromise.

Impact

The double-free vulnerability could lead to memory corruption within the kernel, potentially causing system instability or crashes. While the specific exploitability details are not provided, such memory management flaws can be leveraged by local attackers to compromise system integrity or escalate privileges. No known exploits in the wild have been reported for this issue.

Summary

The Linux kernel's drm/xe/gsc subsystem contained a double-free vulnerability in the error handling path of xe_gsc_init_post_hwconfig(). Specifically, a buffer object allocated with xe_managed_bo_create_pin_map() was explicitly freed via xe_bo_unpin_map_no_vm(), despite already having a devm cleanup action registered. This led to a double-free when devm unwound during probe failure. The fix removes the explicit free to let devm handle cleanup consistently with other callers. This vulnerability was resolved in linux-hwe-edge kernel versions 7.0.0 and later.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 7 Sep 2026, 17:35 UTC

Technical details

References

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