CVE-2026-68234

Resource exhaustion via repeated buffer-object pinning

Published Aug 10, 2026 · Updated Aug 10, 2026

Resource exhaustion in the Linux AMDGPU driver allows attackers to leak pinned buffer objects during repeated firmware reloads. amdgpu_bo_create_reserved reuses a non-NULL buffer-object pointer but still calls amdgpu_bo_pin, incrementing pin_count each time while teardown removes only one reference. The affected path requires AMDGPU_FW_LOAD_DIRECT and repeated resume, cp_resume, or start activity; accumulated references prevent TTM from moving, swapping, or evicting the objects and can exhaust resources.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in the Linux AMDGPU driver allows attackers to leak pinned buffer objects during repeated firmware reloads. amdgpu_bo_create_reserved reuses a non-NULL buffer-object pointer but still calls amdgpu_bo_pin, incrementing pin_count each time while teardown removes only one reference. The affected path requires AMDGPU_FW_LOAD_DIRECT and repeated resume, cp_resume, or start activity; accumulated references prevent TTM from moving, swapping, or evicting the objects and can exhaust resources.

The record

CVE
CVE-2026-68234
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-772
Attack vector
Unavailable
Privileges
Unavailable

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 <2f390b4c83011452753fd84972f657d2b00a952b
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <51eeef1949c11d3dcb5f422a5d9b3f09ebe8a1bc
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9743f60013273987abf415dc47474683d22aaee9
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a2f895f3c852063258d62e9f74b081de07ca95df
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ba7b6444097a73ccd3d3ac9e2be4ebb73d226460

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

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 <2f390b4c83011452753fd84972f657d2b00a952b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <51eeef1949c11d3dcb5f422a5d9b3f09ebe8a1bc; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9743f60013273987abf415dc47474683d22aaee9; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a2f895f3c852063258d62e9f74b081de07ca95df; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ba7b6444097a73ccd3d3ac9e2be4ebb73d226460

Published CVSS scores

No CVSS assessment is available in this record.

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-772Missing Release of Resource after Effective Lifetime

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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