CVE-2025-68754 (GCVE-0-2025-68754)

Vulnerability from cvelistv5 – Published: 2026-01-05 09:32 – Updated: 2026-01-05 09:32
VLAI?
Title
rtc: amlogic-a4: fix double free caused by devm
Summary
In the Linux kernel, the following vulnerability has been resolved: rtc: amlogic-a4: fix double free caused by devm The clock obtained via devm_clk_get_enabled() is automatically managed by devres and will be disabled and freed on driver detach. Manually calling clk_disable_unprepare() in error path and remove function causes double free. Remove the redundant clk_disable_unprepare() calls from the probe error path and aml_rtc_remove(), allowing the devm framework to automatically manage the clock lifecycle.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c89ac9182ee297597f1c6971045382bae19c3f9d , < 9fed02c16488050cd4e33e045506336b216d7301 (git)
Affected: c89ac9182ee297597f1c6971045382bae19c3f9d , < 2e1c79299036614ac32b251d145fad5391f4bcab (git)
Affected: c89ac9182ee297597f1c6971045382bae19c3f9d , < 384150d7a5b60c1086790a8ee07b0629f906cca2 (git)
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    Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.17.13 , ≤ 6.17.* (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc1 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/rtc/rtc-amlogic-a4.c"
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: amlogic-a4: fix double free caused by devm\n\nThe clock obtained via devm_clk_get_enabled() is automatically managed\nby devres and will be disabled and freed on driver detach. Manually\ncalling clk_disable_unprepare() in error path and remove function\ncauses double free.\n\nRemove the redundant clk_disable_unprepare() calls from the probe\nerror path and aml_rtc_remove(), allowing the devm framework to\nautomatically manage the clock lifecycle."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-05T09:32:27.788Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        {
          "url": "https://git.kernel.org/stable/c/384150d7a5b60c1086790a8ee07b0629f906cca2"
        }
      ],
      "title": "rtc: amlogic-a4: fix double free caused by devm",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68754",
    "datePublished": "2026-01-05T09:32:27.788Z",
    "dateReserved": "2025-12-24T10:30:51.033Z",
    "dateUpdated": "2026-01-05T09:32:27.788Z",
    "state": "PUBLISHED"
  },
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  }
}


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