CVE-2026-53279

System hang via borrowed I2C adapter deregistration

Published Jun 26, 2026 · Updated Jun 26, 2026

Denial of service in the Linux kernel allows local users to hang the system during failed Oak Trail LVDS initialization. In oaktrail_lvds.c, late-error cleanup fails to distinguish a borrowed adapter returned by i2c_get_adapter() from one allocated during initialization, then deregisters the borrowed adapter while retaining its added reference. Reachability requires the gma500 Oak Trail LVDS path and a late initialization failure; deregistration then waits indefinitely for that unreleased reference.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Linux kernel allows local users to hang the system during failed Oak Trail LVDS initialization. In oaktrail_lvds.c, late-error cleanup fails to distinguish a borrowed adapter returned by i2c_get_adapter() from one allocated during initialization, then deregisters the borrowed adapter while retaining its added reference. Reachability requires the gma500 Oak Trail LVDS path and a late initialization failure; deregistration then waits indefinitely for that unreleased reference.

The record

CVE
CVE-2026-53279
Published
Jun 26, 2026
Updated
Jun 26, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 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=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <4e04b564c005c9900643c56656d751ad677889be
  3. Affected versionversion=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <5fe9f505d8578852c30668567bc3ce52e776e8c7
  4. Affected versionversion=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <657a091ab6d01d0091b77660c75cfed573c9a53e
  5. Affected versionversion=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <7877f7e231a8bd5c817af1491276550a5e195cd7
  6. Affected versionversion=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <ab9256936b58eb178caddcf5b5b1638f079909d2
  7. Affected versionversion=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <f6fc44af3bbd5ab0fb6bdec6f47decca11b38425

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.0; version=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <4e04b564c005c9900643c56656d751ad677889be; version=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <5fe9f505d8578852c30668567bc3ce52e776e8c7; version=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <657a091ab6d01d0091b77660c75cfed573c9a53e; version=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <7877f7e231a8bd5c817af1491276550a5e195cd7; version=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <ab9256936b58eb178caddcf5b5b1638f079909d2; version=a57ebfc0b4da16a3f36bfebb158198aab3e340f8 <f6fc44af3bbd5ab0fb6bdec6f47decca11b38425

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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