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

Vulnerability from cvelistv5 – Published: 2025-04-16 14:11 – Updated: 2026-06-19 11:57
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.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5545496966631cd40ad3aa6450be56d0e5773d10 , < 51107e768de6821b68aa34a136d07bc7a09cf6c3 (git)
Affected: 73c43bccf25cec9cdec62fc22a513c28a4b28390 , < e4316bd85e42b01125b2aab691769234a388b8a3 (git)
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: b7b05f98f3f06fea3986b46e5c7fe2928676b02d (git)
Affected: 5.10.226 , < 5.10.259 (semver)
Affected: 5.15.166 , < 5.15.210 (semver)
Affected: 6.1.106 , < 6.1.164 (semver)
Affected: 6.6.47 , < 6.6.125 (semver)
Affected: 6.8.10 , < 6.9 (semver)
Create a notification for this product.
Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (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)
Create a notification for this product.
Show details on NVD website
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{\"status\": \"affected\", \"version\": \"93483ac5fec62cc1de166051b219d953bb5e4ef4\", \"lessThan\": \"930b64ca0c511521f0abdd1d57ce52b2a6e3476b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"b7b05f98f3f06fea3986b46e5c7fe2928676b02d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5.10.226\", \"lessThan\": \"5.10.259\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.15.166\", \"lessThan\": \"5.15.210\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"6.1.106\", \"lessThan\": \"6.1.164\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"6.6.47\", \"lessThan\": \"6.6.125\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"6.8.10\", \"lessThan\": \"6.9\", \"versionType\": \"semver\"}], \"programFiles\": [\"fs/nfsd/nfsctl.c\", \"fs/nfsd/stats.c\", \"fs/nfsd/stats.h\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.9\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.9\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.259\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.210\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.164\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.125\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.24\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.13.*\"}, {\"status\": \"unaffected\", \"version\": \"6.14.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.14.*\"}, {\"status\": \"unaffected\", \"version\": \"6.15\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/nfsd/nfsctl.c\", \"fs/nfsd/stats.c\", \"fs/nfsd/stats.h\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/51107e768de6821b68aa34a136d07bc7a09cf6c3\"}, {\"url\": \"https://git.kernel.org/stable/c/e4316bd85e42b01125b2aab691769234a388b8a3\"}, {\"url\": \"https://git.kernel.org/stable/c/51da899c209a9624e48be416bd30e7ed5cd6c3d8\"}, {\"url\": \"https://git.kernel.org/stable/c/30405b23b4d5e2a596fb756d48119d7293194e75\"}, {\"url\": \"https://git.kernel.org/stable/c/6a59b70fe71ec66c0dd19e2c279c71846a3fb2f0\"}, {\"url\": \"https://git.kernel.org/stable/c/e31957a819e60cf0bc9a49408765e6095fd3d046\"}, {\"url\": \"https://git.kernel.org/stable/c/9d9456185fd5f1891c74354ee297f19538141ead\"}, {\"url\": \"https://git.kernel.org/stable/c/930b64ca0c511521f0abdd1d57ce52b2a6e3476b\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.259\", \"versionStartIncluding\": \"5.10.226\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.210\", \"versionStartIncluding\": \"5.15.166\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.164\", \"versionStartIncluding\": \"6.1.106\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.125\", \"versionStartIncluding\": \"6.6.47\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.24\", \"versionStartIncluding\": \"6.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13.12\", \"versionStartIncluding\": \"6.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.14.2\", \"versionStartIncluding\": \"6.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.15\", \"versionStartIncluding\": \"6.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.8.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-06-19T11:57:15.085Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-22026\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-19T11:57:15.085Z\", \"dateReserved\": \"2024-12-29T08:45:45.807Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-04-16T14:11:47.243Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.