CVE-2025-22026 (GCVE-0-2025-22026)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:11 – Updated: 2026-02-19 15:39
VLAI?
Title
nfsd: don't ignore the return code of svc_proc_register()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 10ece754df9a799131a1cf3197e9d26c04ddec22 , < 51da899c209a9624e48be416bd30e7ed5cd6c3d8 (git)
Affected: 6f8d6ed3426a17f77628cebfb6a6e2c6f2b2496c , < 30405b23b4d5e2a596fb756d48119d7293194e75 (git)
Affected: 93483ac5fec62cc1de166051b219d953bb5e4ef4 , < 6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0 (git)
Affected: 93483ac5fec62cc1de166051b219d953bb5e4ef4 , < e31957a819e60cf0bc9a49408765e6095fd3d046 (git)
Affected: 93483ac5fec62cc1de166051b219d953bb5e4ef4 , < 9d9456185fd5f1891c74354ee297f19538141ead (git)
Affected: 93483ac5fec62cc1de166051b219d953bb5e4ef4 , < 930b64ca0c511521f0abdd1d57ce52b2a6e3476b (git)
Affected: 5545496966631cd40ad3aa6450be56d0e5773d10 (git)
Affected: 73c43bccf25cec9cdec62fc22a513c28a4b28390 (git)
Affected: b7b05f98f3f06fea3986b46e5c7fe2928676b02d (git)
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    Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.1.164 , ≤ 6.1.* (semver)
Unaffected: 6.6.125 , ≤ 6.6.* (semver)
Unaffected: 6.12.24 , ≤ 6.12.* (semver)
Unaffected: 6.13.12 , ≤ 6.13.* (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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          "programFiles": [
            "fs/nfsd/nfsctl.c",
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          "vendor": "Linux",
          "versions": [
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            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
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              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.125",
              "versionType": "semver"
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              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
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              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.12",
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              "lessThanOrEqual": "6.14.*",
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              "version": "6.14.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-19T15:39:11.606Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/51da899c209a9624e48be416bd30e7ed5cd6c3d8"
        },
        {
          "url": "https://git.kernel.org/stable/c/30405b23b4d5e2a596fb756d48119d7293194e75"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0"
        },
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          "url": "https://git.kernel.org/stable/c/e31957a819e60cf0bc9a49408765e6095fd3d046"
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        {
          "url": "https://git.kernel.org/stable/c/9d9456185fd5f1891c74354ee297f19538141ead"
        },
        {
          "url": "https://git.kernel.org/stable/c/930b64ca0c511521f0abdd1d57ce52b2a6e3476b"
        }
      ],
      "title": "nfsd: don\u0027t ignore the return code of svc_proc_register()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22026",
    "datePublished": "2025-04-16T14:11:47.243Z",
    "dateReserved": "2024-12-29T08:45:45.807Z",
    "dateUpdated": "2026-02-19T15:39:11.606Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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