CVE-2026-68104

Kernel memory corruption via dangling power-domain entry

Published Aug 10, 2026 · Updated Aug 10, 2026

Use-after-free in Linux kernel AMDGPU ACP teardown allows local users to corrupt kernel memory through driver cleanup. The acp_hw_fini path frees acp_genpd without first calling pm_genpd_remove, leaving its generic power-domain entry linked in the global gpd_list. Driver unload or PCI unbind requires root or CAP_SYS_ADMIN; subsequent list walks can leak kernel pointers, panic or hang the host, or enable kernel code execution.

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

Use-after-free in Linux kernel AMDGPU ACP teardown allows local users to corrupt kernel memory through driver cleanup. The acp_hw_fini path frees acp_genpd without first calling pm_genpd_remove, leaving its generic power-domain entry linked in the global gpd_list. Driver unload or PCI unbind requires root or CAP_SYS_ADMIN; subsequent list walks can leak kernel pointers, panic or hang the host, or enable kernel code execution.

The record

CVE
CVE-2026-68104
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
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=0 <6.12.101
  2. Affected versionversion=0 <6.18.42
  3. Affected versionversion=0 <6.6.148
  4. Affected versionversion=0 <7.1.6
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <08fee493e0261f9e4120a5c8e7e42e8a723574e8
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <28c9b3c5dc35cc790d11e26ca3fc6e068be63998
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5c0a82283271759fff445ac27182072f200a888c
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <930a5dc3df4aa5e10393134bd5313d616dbebaf6
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bdfc7f1e0900ef1361b828c4f69b72701f8a0a86

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0 <6.12.101; version=0 <6.18.42; version=0 <6.6.148; version=0 <7.1.6; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <08fee493e0261f9e4120a5c8e7e42e8a723574e8; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <28c9b3c5dc35cc790d11e26ca3fc6e068be63998; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5c0a82283271759fff445ac27182072f200a888c; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <930a5dc3df4aa5e10393134bd5313d616dbebaf6; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bdfc7f1e0900ef1361b828c4f69b72701f8a0a86

Published CVSS scores

7.8Linux CNACVSS: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 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

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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