CVE-2026-68245

Kernel memory misuse via unlocked VM pointer

Published Aug 10, 2026 · Updated Aug 10, 2026

Use-after-unlock in the AMDGPU VM code in affected Linux kernels allows local users to dereference stale task data during GPU operations. amdgpu_vm_get_task_info_pasid() releases the xarray lock before amdgpu_vm_get_task_info_vm() dereferences vm->task_info, leaving the VM pointer unprotected against modification. Local low-privileged access and an AMD GPU using amdgpu are required; public sources define no reliable trigger or resulting effect beyond unsafe kernel memory access.

CVSS severity7.0
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-unlock in the AMDGPU VM code in affected Linux kernels allows local users to dereference stale task data during GPU operations. amdgpu_vm_get_task_info_pasid() releases the xarray lock before amdgpu_vm_get_task_info_vm() dereferences vm->task_info, leaving the VM pointer unprotected against modification. Local low-privileged access and an AMD GPU using amdgpu are required; public sources define no reliable trigger or resulting effect beyond unsafe kernel memory access.

The record

CVE
CVE-2026-68245
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
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 <7.1.6
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <04cc4aa3617b0ed67e859f91f09de5d896a46f3a
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1173190412fb9d12e7efce76734118d9712ff970
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5d5fb9124a2bba96a7807086d8fe0f7ce810d546
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fe16a7e5336ae888751984e30c451fbf7cfa5df7

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 <7.1.6; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <04cc4aa3617b0ed67e859f91f09de5d896a46f3a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1173190412fb9d12e7efce76734118d9712ff970; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5d5fb9124a2bba96a7807086d8fe0f7ce810d546; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fe16a7e5336ae888751984e30c451fbf7cfa5df7

Published CVSS scores

7.0Oracle LinuxCVSS: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

No sourced classifications are available.

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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