FKIE_CVE-2025-68754

Vulnerability from fkie_nvd - Published: 2026-01-05 10:15 - Updated: 2026-10-14 19:10
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e1c79299036614ac32b251d145fad5391f4bcab
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/384150d7a5b60c1086790a8ee07b0629f906cca2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9fed02c16488050cd4e33e045506336b216d7301
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/rtc/rtc-amlogic-a4.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9fed02c16488050cd4e33e045506336b216d7301",
              "status": "affected",
              "version": "c89ac9182ee297597f1c6971045382bae19c3f9d",
              "versionType": "git"
            },
            {
              "lessThan": "2e1c79299036614ac32b251d145fad5391f4bcab",
              "status": "affected",
              "version": "c89ac9182ee297597f1c6971045382bae19c3f9d",
              "versionType": "git"
            },
            {
              "lessThan": "384150d7a5b60c1086790a8ee07b0629f906cca2",
              "status": "affected",
              "version": "c89ac9182ee297597f1c6971045382bae19c3f9d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/rtc/rtc-amlogic-a4.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nrtc: amlogic-a4: corregir doble liberaci\u00f3n causada por devm\n\nEl reloj obtenido a trav\u00e9s de devm_clk_get_enabled() es gestionado autom\u00e1ticamente por devres y ser\u00e1 deshabilitado y liberado al desvincular el controlador. Llamar manualmente a clk_disable_unprepare() en la ruta de error y en la funci\u00f3n de eliminaci\u00f3n causa doble liberaci\u00f3n.\n\nEliminar las llamadas redundantes a clk_disable_unprepare() de la ruta de error de la sonda y de aml_rtc_remove(), permitiendo que el framework devm gestione autom\u00e1ticamente el ciclo de vida del reloj."
    }
  ],
  "id": "CVE-2025-68754",
  "lastModified": "2026-10-14T19:10:00.297",
  "metrics": {},
  "published": "2026-01-05T10:15:56.430",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2e1c79299036614ac32b251d145fad5391f4bcab"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/384150d7a5b60c1086790a8ee07b0629f906cca2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9fed02c16488050cd4e33e045506336b216d7301"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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