cve-2021-47168
Vulnerability from cvelistv5
Published
2024-03-25 09:16
Modified
2024-12-19 07:36
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: NFS: fix an incorrect limit in filelayout_decode_layout() The "sizeof(struct nfs_fh)" is two bytes too large and could lead to memory corruption. It should be NFS_MAXFHSIZE because that's the size of the ->data[] buffer. I reversed the size of the arguments to put the variable on the left.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d34fb628f6ef522f996205a9e578216bbee09e84
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f299522eda1566cbfbae4b15c82970fc41b03714
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84a
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6e
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d34fb628f6ef522f996205a9e578216bbee09e84
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f299522eda1566cbfbae4b15c82970fc41b03714
Impacted products
Vendor Product Version
Linux Linux Version: 16b374ca439fb406e46e071f75428f5b033056f8
Version: 16b374ca439fb406e46e071f75428f5b033056f8
Version: 16b374ca439fb406e46e071f75428f5b033056f8
Version: 16b374ca439fb406e46e071f75428f5b033056f8
Version: 16b374ca439fb406e46e071f75428f5b033056f8
Version: 16b374ca439fb406e46e071f75428f5b033056f8
Version: 16b374ca439fb406e46e071f75428f5b033056f8
Version: 16b374ca439fb406e46e071f75428f5b033056f8
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   Linux Linux Version: 2.6.37
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\"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/filelayout/filelayout.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040\"}, {\"url\": \"https://git.kernel.org/stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1\"}, {\"url\": \"https://git.kernel.org/stable/c/f299522eda1566cbfbae4b15c82970fc41b03714\"}, {\"url\": \"https://git.kernel.org/stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84a\"}, {\"url\": \"https://git.kernel.org/stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1\"}, {\"url\": \"https://git.kernel.org/stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6e\"}, {\"url\": \"https://git.kernel.org/stable/c/d34fb628f6ef522f996205a9e578216bbee09e84\"}, {\"url\": \"https://git.kernel.org/stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nNFS: fix an incorrect limit in filelayout_decode_layout()\\n\\nThe \\\"sizeof(struct nfs_fh)\\\" is two bytes too large and could lead to\\nmemory corruption.  It should be NFS_MAXFHSIZE because that\u0027s the size\\nof the -\u003edata[] buffer.\\n\\nI reversed the size of the arguments to put the variable on the left.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T12:00:43.949Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47168\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T12:00:43.949Z\", \"dateReserved\": \"2024-03-25T09:12:14.111Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-25T09:16:20.778Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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