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CVE-2022-50039

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

stmmac: intel: Add a missing clk_disable_unprepare() call in intel_eth_pci_remove()

Commit 09f012e64e4b ("stmmac: intel: Fix clock handling on error and remove paths") removed this clk_disable_unprepare()

This was partly revert by commit ac322f86b56c ("net: stmmac: Fix clock handling on remove path") which removed this clk_disable_unprepare() because: " While unloading the dwmac-intel driver, clk_disable_unprepare() is being called twice in stmmac_dvr_remove() and intel_eth_pci_remove(). This causes kernel panic on the second call. "

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However later on, commit 5ec55823438e8 ("net: stmmac: add clocks management for gmac driver") has updated stmmac_dvr_remove() which do not call clk_disable_unprepare() anymore.

So this call should now be called from intel_eth_pci_remove().

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-50039",
  "cveTags": [],
  "metrics": {
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          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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  "published": "2025-06-18T11:15:32.337",
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          "value": "NVD-CWE-noinfo"
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstmmac: intel: Add a missing clk_disable_unprepare() call in intel_eth_pci_remove()\n\nCommit 09f012e64e4b (\"stmmac: intel: Fix clock handling on error and remove\npaths\") removed this clk_disable_unprepare()\n\nThis was partly revert by commit ac322f86b56c (\"net: stmmac: Fix clock\nhandling on remove path\") which removed this clk_disable_unprepare()\nbecause:\n\"\n   While unloading the dwmac-intel driver, clk_disable_unprepare() is\n   being called twice in stmmac_dvr_remove() and\n   intel_eth_pci_remove(). This causes kernel panic on the second call.\n\"\n\nHowever later on, commit 5ec55823438e8 (\"net: stmmac: add clocks management\nfor gmac driver\") has updated stmmac_dvr_remove() which do not call\nclk_disable_unprepare() anymore.\n\nSo this call should now be called from intel_eth_pci_remove()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: stmmac: intel: Añadir una llamada clk_disable_unprepare() faltante en intel_eth_pci_remove(). el commit 09f012e64e4b (\"stmmac: intel: Corregir el manejo del reloj en caso de error y eliminar rutas\") eliminó esta clk_disable_unprepare(). Esto se revirtió parcialmente mediante el commit ac322f86b56c (\"net: stmmac: Corregir el manejo del reloj al eliminar la ruta\"), que eliminó esta clk_disable_unprepare() porque: \"Al descargar el controlador dwmac-intel, se llama a clk_disable_unprepare() dos veces en stmmac_dvr_remove() e intel_eth_pci_remove(). Esto provoca un pánico del kernel en la segunda llamada\". Sin embargo, más tarde, el commit 5ec55823438e8 (\"net: stmmac: añadir la gestión de relojes para el controlador gmac\") ha actualizado stmmac_dvr_remove() ya no llama a clk_disable_unprepare(). Por lo tanto, esta llamada ahora debe ejecutarse desde intel_eth_pci_remove()."
    }
  ],
  "lastModified": "2026-06-17T05:22:37.120",
  "configurations": [
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