fkie_cve-2024-50269
Vulnerability from fkie_nvd
Published
2024-11-19 02:16
Modified
2024-11-26 22:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: musb: sunxi: Fix accessing an released usb phy Commit 6ed05c68cbca ("usb: musb: sunxi: Explicitly release USB PHY on exit") will cause that usb phy @glue->xceiv is accessed after released. 1) register platform driver @sunxi_musb_driver // get the usb phy @glue->xceiv sunxi_musb_probe() -> devm_usb_get_phy(). 2) register and unregister platform driver @musb_driver musb_probe() -> sunxi_musb_init() use the phy here //the phy is released here musb_remove() -> sunxi_musb_exit() -> devm_usb_put_phy() 3) register @musb_driver again musb_probe() -> sunxi_musb_init() use the phy here but the phy has been released at 2). ... Fixed by reverting the commit, namely, removing devm_usb_put_phy() from sunxi_musb_exit().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/498dbd9aea205db9da674994b74c7bf8e18448bdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4aa77d5ea9944468e16c3eed15e858fd5de44de1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/63559ba8077cbadae1c92a65b73ea522bf377dd9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6e2848d1c8c0139161e69ac0a94133e90e9988e8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/721ddad945596220c123eb6f7126729fe277ee4fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a30da5aa9609663b3e05bcc91a916537f66a4cdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b08baa75b989cf779cbfa0969681f8ba2dc46569Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccd811c304d2ee56189bfbc49302cb3c44361893Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: musb: sunxi: Fix accessing an released usb phy\n\nCommit 6ed05c68cbca (\"usb: musb: sunxi: Explicitly release USB PHY on\nexit\") will cause that usb phy @glue-\u003exceiv is accessed after released.\n\n1) register platform driver @sunxi_musb_driver\n// get the usb phy @glue-\u003exceiv\nsunxi_musb_probe() -\u003e devm_usb_get_phy().\n\n2) register and unregister platform driver @musb_driver\nmusb_probe() -\u003e sunxi_musb_init()\nuse the phy here\n//the phy is released here\nmusb_remove() -\u003e sunxi_musb_exit() -\u003e devm_usb_put_phy()\n\n3) register @musb_driver again\nmusb_probe() -\u003e sunxi_musb_init()\nuse the phy here but the phy has been released at 2).\n...\n\nFixed by reverting the commit, namely, removing devm_usb_put_phy()\nfrom sunxi_musb_exit()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: musb: sunxi: Se solucion\u00f3 el acceso a un usb phy liberado. Commit 6ed05c68cbca (\"usb: musb: sunxi: Liberar expl\u00edcitamente USB PHY al salir\") provocar\u00e1 que se acceda al usb phy @glue-\u0026gt;xceiv despu\u00e9s de su liberaci\u00f3n. 1) registrar el controlador de la plataforma @sunxi_musb_driver // obtener el usb phy @glue-\u0026gt;xceiv sunxi_musb_probe() -\u0026gt; devm_usb_get_phy(). 2) registrar y anular el registro del controlador de la plataforma @musb_driver musb_probe() -\u0026gt; sunxi_musb_init() usa el phy aqu\u00ed //el phy se publica aqu\u00ed musb_remove() -\u0026gt; sunxi_musb_exit() -\u0026gt; devm_usb_put_phy() 3) registrar @musb_driver nuevamente musb_probe() -\u0026gt; sunxi_musb_init() usa el phy aqu\u00ed pero el phy se ha publicado en 2). ... Se solucion\u00f3 revirtiendo el commit, es decir, eliminando devm_usb_put_phy() de sunxi_musb_exit()."
    }
  ],
  "id": "CVE-2024-50269",
  "lastModified": "2024-11-26T22:30:27.420",
  "metrics": {
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          "attackVector": "LOCAL",
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          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "source": "nvd@nist.gov",
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  "published": "2024-11-19T02:16:28.930",
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      "source": "nvd@nist.gov",
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}


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