ghsa-v4vx-qxh4-8ww4
Vulnerability from github
Published
2025-09-15 15:31
Modified
2025-09-15 15:31
Details

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

rapidio: fix possible UAF when kfifo_alloc() fails

If kfifo_alloc() fails in mport_cdev_open(), goto err_fifo and just free priv. But priv is still in the chdev->file_list, then list traversal may cause UAF. This fixes the following smatch warning:

drivers/rapidio/devices/rio_mport_cdev.c:1930 mport_cdev_open() warn: '&priv->list' not removed from list

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50245"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T14:15:34Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrapidio: fix possible UAF when kfifo_alloc() fails\n\nIf kfifo_alloc() fails in mport_cdev_open(), goto err_fifo and just free\npriv. But priv is still in the chdev-\u003efile_list, then list traversal\nmay cause UAF. This fixes the following smatch warning:\n\ndrivers/rapidio/devices/rio_mport_cdev.c:1930 mport_cdev_open() warn: \u0027\u0026priv-\u003elist\u0027 not removed from list",
  "id": "GHSA-v4vx-qxh4-8ww4",
  "modified": "2025-09-15T15:31:22Z",
  "published": "2025-09-15T15:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50245"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/02d7d89f816951e0862147d751b1150d67aaebdd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a6c75adf8192f07ddcdd4a1a13488c890a73919"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ba06e57f933f0eac242e8b389433da1cc00d4d5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2dfd60724d271a6ab99f93f40f38f2ced1ddbb87"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f5cc7fd73fd6253cc71214f0dd499cc62feb469"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/311b488405ac45af46756b1c8f1d27007b68b07e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ee850645e42f541ce1ea8130c2b27cc495f965c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a253dde0403a153075ffb254f6f7b2635e49e97a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb87af2c19c0993f6e21f75b963a5599c5a73e76"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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