CVE-2025-68747

Local privilege escalation via stale Panthor VA node

Published Dec 24, 2025 · Updated Dec 24, 2025

A use-after-free in the Panthor DRM driver in Linux allows local users with render-node access to corrupt kernel memory via GPU VM ioctls. When panthor_vm_unmap_range() returns an error while the MMU is down, cleanup exits early and leaves the kernel BO's va_node in drm_mm after its object is freed. Ordinary render-node access is sufficient; crafted allocations, GPU command streams, and teardown can yield kernel reads or writes, control-flow hijacking, or a kernel panic.

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

A use-after-free in the Panthor DRM driver in Linux allows local users with render-node access to corrupt kernel memory via GPU VM ioctls. When panthor_vm_unmap_range() returns an error while the MMU is down, cleanup exits early and leaves the kernel BO's va_node in drm_mm after its object is freed. Ordinary render-node access is sufficient; crafted allocations, GPU command streams, and teardown can yield kernel reads or writes, control-flow hijacking, or a kernel panic.

The record

CVE
CVE-2025-68747
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record 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=6.10
  2. Affected versionversion=8a1cc07578bf42d85f008316873d710ff684dd29 <0612704b6f6ddf2ae223019c52148c5ac76cf70e
  3. Affected versionversion=8a1cc07578bf42d85f008316873d710ff684dd29 <1123eadb843588b361c96f53a771202b7953154f
  4. Affected versionversion=8a1cc07578bf42d85f008316873d710ff684dd29 <5a0060ddfc1fcfdb0f7b4fa1b7b3b0c436151391
  5. Affected versionversion=8a1cc07578bf42d85f008316873d710ff684dd29 <98dd5143447af0ee33551776d8b2560c35d0bc4a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.10; version=8a1cc07578bf42d85f008316873d710ff684dd29 <0612704b6f6ddf2ae223019c52148c5ac76cf70e; version=8a1cc07578bf42d85f008316873d710ff684dd29 <1123eadb843588b361c96f53a771202b7953154f; version=8a1cc07578bf42d85f008316873d710ff684dd29 <5a0060ddfc1fcfdb0f7b4fa1b7b3b0c436151391; version=8a1cc07578bf42d85f008316873d710ff684dd29 <98dd5143447af0ee33551776d8b2560c35d0bc4a

Published CVSS scores

7.8kernel.orgCVSS:3.1/AV:L/AC:L/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.

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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

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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