CVE-2026-97509Hinoki check available

Kernel crash via stale XDomain service reference

Published Sep 24, 2026 · Updated Sep 24, 2026

Use-after-free in the Linux Thunderbolt XDomain service lifecycle allows attackers to crash the kernel during deferred service teardown. tb_service_release() frees an identifier from the parent XDomain's service_ids array even though the parent can be released before the service's final release callback. Reachability requires an instantiated Thunderbolt XDomain service and teardown while another reference delays final service release; no data compromise or code execution is documented.

CVSS severityUnavailable
Unscored
EPSS probability0.24%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Get started

Summary

What happened

Use-after-free in the Linux Thunderbolt XDomain service lifecycle allows attackers to crash the kernel during deferred service teardown. tb_service_release() frees an identifier from the parent XDomain's service_ids array even though the parent can be released before the service's final release callback. Reachability requires an instantiated Thunderbolt XDomain service and teardown while another reference delays final service release; no data compromise or code execution is documented.

The record

CVE
CVE-2026-97509
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <5.10.266
  2. Affected versionversion=0 <5.15.217
  3. Affected versionversion=0 <6.12.111
  4. Affected versionversion=0 <6.18.53
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8ab12d015884b8aa85ea7ed58c5a0bae4264fe60
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8b4060998637f06975fceee9b73845d8672d411e
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a4567e5380e4e46d0ea9a28d2d675e5c6f013d54
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <daeaa6c7211d03ed061b0dd22a875fad9372b090
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ea60ae6233ca0fc0d414e9c11f0d86c63b303fc7

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=0 <5.10.266; version=0 <5.15.217; version=0 <6.12.111; version=0 <6.18.53; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8ab12d015884b8aa85ea7ed58c5a0bae4264fe60; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8b4060998637f06975fceee9b73845d8672d411e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a4567e5380e4e46d0ea9a28d2d675e5c6f013d54; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <daeaa6c7211d03ed061b0dd22a875fad9372b090; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ea60ae6233ca0fc0d414e9c11f0d86c63b303fc7

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)
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

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Get started