CVE-2026-98003Hinoki check available

Kernel memory leak via resume-time buffer reallocation

Published Sep 25, 2026 · Updated Sep 25, 2026

Resource leakage in the AMD IOMMU driver in Linux 6.0 allows repeated system resumes to consume unreclaimed kernel memory. iommu_init_ga_log() unconditionally replaces ga_log and ga_log_tail during enable_iommus_vapic() on every resume, losing both prior allocations. The path requires AMD IOMMU guest virtual APIC support and suspend/resume activity; testing showed kernel IOMMU pages rising from 17 to 25 after five cycles.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Resource leakage in the AMD IOMMU driver in Linux 6.0 allows repeated system resumes to consume unreclaimed kernel memory. iommu_init_ga_log() unconditionally replaces ga_log and ga_log_tail during enable_iommus_vapic() on every resume, losing both prior allocations. The path requires AMD IOMMU guest virtual APIC support and suspend/resume activity; testing showed kernel IOMMU pages rising from 17 to 25 after five cycles.

The record

CVE
CVE-2026-98003
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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=6.0
  2. Affected versionversion=c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b <00a7dd64888d6dd72110b40e2824a088cf7b7386
  3. Affected versionversion=c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b <94458b80d3b203c1c9e2c98aa7319b7713e006c0
  4. Affected versionversion=c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b <b6be275d19cee01f8f1f08a2ff18337103d05d40

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.0; version=c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b <00a7dd64888d6dd72110b40e2824a088cf7b7386; version=c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b <94458b80d3b203c1c9e2c98aa7319b7713e006c0; version=c5e1a1eb9279fdb28d47ca2a4493a4c53b7d6a0b <b6be275d19cee01f8f1f08a2ff18337103d05d40

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
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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