CVE-2025-68754

Double free via redundant managed clock release

Published Jan 5, 2026 · Updated Jan 5, 2026

Double free in the Amlogic A4 RTC driver in Linux Kernel allows attackers to cause unspecified impact via unspecified vectors. The probe error path and aml_rtc_remove() manually call clk_disable_unprepare() on a clock already owned by devres, which releases it again on detach. The record limits reachability to probe failure or driver removal and does not establish attacker prerequisites or a demonstrated result beyond the duplicate release.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in the Amlogic A4 RTC driver in Linux Kernel allows attackers to cause unspecified impact via unspecified vectors. The probe error path and aml_rtc_remove() manually call clk_disable_unprepare() on a clock already owned by devres, which releases it again on detach. The record limits reachability to probe failure or driver removal and does not establish attacker prerequisites or a demonstrated result beyond the duplicate release.

The record

CVE
CVE-2025-68754
Published
Jan 5, 2026
Updated
Jan 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 5, 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=6.13
  2. Affected versionversion=c89ac9182ee297597f1c6971045382bae19c3f9d <2e1c79299036614ac32b251d145fad5391f4bcab
  3. Affected versionversion=c89ac9182ee297597f1c6971045382bae19c3f9d <384150d7a5b60c1086790a8ee07b0629f906cca2
  4. Affected versionversion=c89ac9182ee297597f1c6971045382bae19c3f9d <9fed02c16488050cd4e33e045506336b216d7301

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.13; version=c89ac9182ee297597f1c6971045382bae19c3f9d <2e1c79299036614ac32b251d145fad5391f4bcab; version=c89ac9182ee297597f1c6971045382bae19c3f9d <384150d7a5b60c1086790a8ee07b0629f906cca2; version=c89ac9182ee297597f1c6971045382bae19c3f9d <9fed02c16488050cd4e33e045506336b216d7301

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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