{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "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's the size\nof the ->data[] buffer.\n\nI reversed the size of the arguments to put the variable on the left."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/nfs/filelayout/filelayout.c"
               ],
               "versions": [
                  {
                     "version": "16b374ca439f",
                     "lessThan": "9d280ab53df1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "16b374ca439f",
                     "lessThan": "b287521e9e94",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "16b374ca439f",
                     "lessThan": "f299522eda15",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "16b374ca439f",
                     "lessThan": "945ebef99722",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "16b374ca439f",
                     "lessThan": "e411df81cd86",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "16b374ca439f",
                     "lessThan": "9b367fe770b1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "16b374ca439f",
                     "lessThan": "d34fb628f6ef",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "16b374ca439f",
                     "lessThan": "769b01ea68b6",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/nfs/filelayout/filelayout.c"
               ],
               "versions": [
                  {
                     "version": "2.6.37",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "2.6.37",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.4.271",
                     "lessThanOrEqual": "4.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.9.271",
                     "lessThanOrEqual": "4.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.235",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.193",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.124",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.42",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.12.9",
                     "lessThanOrEqual": "5.12.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.13",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "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"
            }
         ],
         "title": "NFS: fix an incorrect limit in filelayout_decode_layout()",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47168",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}