ghsa-xrw7-56rh-2jrq
Vulnerability from github
Published
2024-11-19 03:31
Modified
2025-11-04 00:32
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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().

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-50269"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-19T02:16:28Z",
    "severity": "HIGH"
  },
  "details": "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().",
  "id": "GHSA-xrw7-56rh-2jrq",
  "modified": "2025-11-04T00:32:03Z",
  "published": "2024-11-19T03:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50269"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/498dbd9aea205db9da674994b74c7bf8e18448bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4aa77d5ea9944468e16c3eed15e858fd5de44de1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63559ba8077cbadae1c92a65b73ea522bf377dd9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e2848d1c8c0139161e69ac0a94133e90e9988e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/721ddad945596220c123eb6f7126729fe277ee4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a30da5aa9609663b3e05bcc91a916537f66a4cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b08baa75b989cf779cbfa0969681f8ba2dc46569"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ccd811c304d2ee56189bfbc49302cb3c44361893"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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