ghsa-xrr8-p4pf-hfwr
Vulnerability from github
Published
2025-04-16 15:34
Modified
2025-10-28 21:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

nfsd: don't ignore the return code of svc_proc_register()

Currently, nfsd_proc_stat_init() ignores the return value of svc_proc_register(). If the procfile creation fails, then the kernel will WARN when it tries to remove the entry later.

Fix nfsd_proc_stat_init() to return the same type of pointer as svc_proc_register(), and fix up nfsd_net_init() to check that and fail the nfsd_net construction if it occurs.

svc_proc_register() can fail if the dentry can't be allocated, or if an identical dentry already exists. The second case is pretty unlikely in the nfsd_net construction codepath, so if this happens, return -ENOMEM.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-22026"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-252"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-16T15:15:55Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: don\u0027t ignore the return code of svc_proc_register()\n\nCurrently, nfsd_proc_stat_init() ignores the return value of\nsvc_proc_register(). If the procfile creation fails, then the kernel\nwill WARN when it tries to remove the entry later.\n\nFix nfsd_proc_stat_init() to return the same type of pointer as\nsvc_proc_register(), and fix up nfsd_net_init() to check that and fail\nthe nfsd_net construction if it occurs.\n\nsvc_proc_register() can fail if the dentry can\u0027t be allocated, or if an\nidentical dentry already exists. The second case is pretty unlikely in\nthe nfsd_net construction codepath, so if this happens, return -ENOMEM.",
  "id": "GHSA-xrr8-p4pf-hfwr",
  "modified": "2025-10-28T21:30:29Z",
  "published": "2025-04-16T15:34:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22026"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/930b64ca0c511521f0abdd1d57ce52b2a6e3476b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d9456185fd5f1891c74354ee297f19538141ead"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e31957a819e60cf0bc9a49408765e6095fd3d046"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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