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CVE-2021-47167 (GCVE-0-2021-47167)

Vulnerability from cvelistv5 – Published: 2024-03-25 09:16 – Updated: 2026-05-11 13:49
VLAI
Title
NFS: Fix an Oopsable condition in __nfs_pageio_add_request()
Summary
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix an Oopsable condition in __nfs_pageio_add_request() Ensure that nfs_pageio_error_cleanup() resets the mirror array contents, so that the structure reflects the fact that it is now empty. Also change the test in nfs_pageio_do_add_request() to be more robust by checking whether or not the list is empty rather than relying on the value of pg_count.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:54 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a7d42ddb3099727f58366fa006f850a219cce6c8 , < 1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e (git)
Affected: a7d42ddb3099727f58366fa006f850a219cce6c8 , < ee21cd3aa8548e0cbc8c67a80b62113aedd2d101 (git)
Affected: a7d42ddb3099727f58366fa006f850a219cce6c8 , < 15ac6f14787649e8ebd75c142e2c5d2a243c8490 (git)
Affected: a7d42ddb3099727f58366fa006f850a219cce6c8 , < 56517ab958b7c11030e626250c00b9b1a24b41eb (git)
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Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 5.4.124 , ≤ 5.4.* (semver)
Unaffected: 5.10.42 , ≤ 5.10.* (semver)
Unaffected: 5.12.9 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/15ac6f14787649e8ebd75c142e2c5d2a243c8490\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:24:39.945Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47167\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:54:37.991848Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:19.412Z\"}}], \"cna\": {\"title\": \"NFS: Fix an Oopsable condition in __nfs_pageio_add_request()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"a7d42ddb3099\", \"lessThan\": \"1fc5f4eb9d31\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a7d42ddb3099\", \"lessThan\": \"ee21cd3aa854\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a7d42ddb3099\", \"lessThan\": \"15ac6f147876\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a7d42ddb3099\", \"lessThan\": \"56517ab958b7\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/nfs/pagelist.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.0\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.124\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.42\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.9\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/nfs/pagelist.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e\"}, {\"url\": \"https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101\"}, {\"url\": \"https://git.kernel.org/stable/c/15ac6f14787649e8ebd75c142e2c5d2a243c8490\"}, {\"url\": \"https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nNFS: Fix an Oopsable condition in __nfs_pageio_add_request()\\n\\nEnsure that nfs_pageio_error_cleanup() resets the mirror array contents,\\nso that the structure reflects the fact that it is now empty.\\nAlso change the test in nfs_pageio_do_add_request() to be more robust by\\nchecking whether or not the list is empty rather than relying on the\\nvalue of pg_count.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T12:00:42.767Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47167\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T12:00:42.767Z\", \"dateReserved\": \"2024-03-25T09:12:14.111Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-25T09:16:19.952Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.