CVE-2026-80894Hinoki check available

Fault-response mishandling via mismatched hardware page table

Published Sep 4, 2026 · Updated Sep 4, 2026

Logic error in affected Linux kernel iommufd releases allows attackers an unspecified impact during device-domain replacement. iommufd_hwpt_replace_device passes the new hardware page table with the old domain handle, so iommufd_auto_response_faults scans the wrong fault queues. Published Linux material does not identify the required attacker access or the resulting security consequence.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Logic error in affected Linux kernel iommufd releases allows attackers an unspecified impact during device-domain replacement. iommufd_hwpt_replace_device passes the new hardware page table with the old domain handle, so iommufd_auto_response_faults scans the wrong fault queues. Published Linux material does not identify the required attacker access or the resulting security consequence.

The record

CVE
CVE-2026-80894
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 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=1e0216b6a58c79b5ee91c78706d5f560e4d1f56f
  2. Affected versionversion=4b23c4b991eb90cc7bca42e9f81142feedd4bb56
  3. Affected versionversion=6.12.24 <6.12.105
  4. Affected versionversion=6.13.12 <6.14
  5. Affected versionversion=6.14.3 <6.15
  6. Affected versionversion=6.15
  7. Affected versionversion=6d11543bf37abdf60b8e6022a62fccfb82a5fe2e <adb87155b67f9759ff010c0a99559f5bffa45dcf
  8. Affected versionversion=fb21b1568adaa76af7a8c853f37c60fba8b28661 <564ac339c0f8bada4e77a57a92bab9d3df635e07
  9. Affected versionversion=fb21b1568adaa76af7a8c853f37c60fba8b28661 <8eb077025279304268bd58657f0af3d388822b21
  10. Affected versionversion=fb21b1568adaa76af7a8c853f37c60fba8b28661 <ba5c0f28a26e7d9be1e0997f8920dd638e2782fd

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=1e0216b6a58c79b5ee91c78706d5f560e4d1f56f; version=4b23c4b991eb90cc7bca42e9f81142feedd4bb56; version=6.12.24 <6.12.105; version=6.13.12 <6.14; version=6.14.3 <6.15; version=6.15; version=6d11543bf37abdf60b8e6022a62fccfb82a5fe2e <adb87155b67f9759ff010c0a99559f5bffa45dcf; version=fb21b1568adaa76af7a8c853f37c60fba8b28661 <564ac339c0f8bada4e77a57a92bab9d3df635e07; version=fb21b1568adaa76af7a8c853f37c60fba8b28661 <8eb077025279304268bd58657f0af3d388822b21; version=fb21b1568adaa76af7a8c853f37c60fba8b28661 <ba5c0f28a26e7d9be1e0997f8920dd638e2782fd

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.

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)
VectorUnavailable
PrivilegesUnavailable
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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