CVE-2026-98607Hinoki check available

Resource leaks via incorrect blob-creation error cleanup

Published Oct 18, 2026 · Updated Oct 18, 2026

Resource leaks in Linux virtio GPU blob creation allow local users to leave guest and host GPU resources allocated after errors. The virtio_gpu_resource_create_blob_ioctl() handler calls drm_gem_object_release() without dropping its owned reference when UUID assignment or GEM handle creation fails, preventing the free callback from reclaiming the object, resource ID, and host resource. Triggering the leak requires access to the virtio GPU device and one of those failures; the published patch does not demonstrate a hang or crash.

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 leaks in Linux virtio GPU blob creation allow local users to leave guest and host GPU resources allocated after errors. The virtio_gpu_resource_create_blob_ioctl() handler calls drm_gem_object_release() without dropping its owned reference when UUID assignment or GEM handle creation fails, preventing the free callback from reclaiming the object, resource ID, and host resource. Triggering the leak requires access to the virtio GPU device and one of those failures; the published patch does not demonstrate a hang or crash.

The record

CVE
CVE-2026-98607
Published
Oct 18, 2026
Updated
Oct 18, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 18, 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=5.11
  2. Affected versionversion=897b4d1acaf56314652c6a8e75d9f86b5e45638d <02df4e24dc4c0bf5b0425a6acabc5201d7f04fc2
  3. Affected versionversion=897b4d1acaf56314652c6a8e75d9f86b5e45638d <0455867bbd95ffa9d9db0a1c6dda500f8126232c
  4. Affected versionversion=897b4d1acaf56314652c6a8e75d9f86b5e45638d <24b6d5c7641412c9ebef0d4c8b888d49a0e6b880
  5. Affected versionversion=897b4d1acaf56314652c6a8e75d9f86b5e45638d <73ea38a89b923fa08047885a0845d1cd89261ead
  6. Affected versionversion=897b4d1acaf56314652c6a8e75d9f86b5e45638d <81c6769e069d703154087377d1749af2f1b74e49
  7. Affected versionversion=897b4d1acaf56314652c6a8e75d9f86b5e45638d <88c60c06a2a5244f5dd32ec098e633add114890f
  8. Affected versionversion=897b4d1acaf56314652c6a8e75d9f86b5e45638d <eea473532a286cd1b13cddbec5c645989f43a3aa

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=897b4d1acaf56314652c6a8e75d9f86b5e45638d <02df4e24dc4c0bf5b0425a6acabc5201d7f04fc2; version=897b4d1acaf56314652c6a8e75d9f86b5e45638d <0455867bbd95ffa9d9db0a1c6dda500f8126232c; version=897b4d1acaf56314652c6a8e75d9f86b5e45638d <24b6d5c7641412c9ebef0d4c8b888d49a0e6b880; version=897b4d1acaf56314652c6a8e75d9f86b5e45638d <73ea38a89b923fa08047885a0845d1cd89261ead; version=897b4d1acaf56314652c6a8e75d9f86b5e45638d <81c6769e069d703154087377d1749af2f1b74e49; version=897b4d1acaf56314652c6a8e75d9f86b5e45638d <88c60c06a2a5244f5dd32ec098e633add114890f; version=897b4d1acaf56314652c6a8e75d9f86b5e45638d <eea473532a286cd1b13cddbec5c645989f43a3aa

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.

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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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