{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-47168", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-03-25T09:12:14.111Z", "datePublished": "2024-03-25T09:16:20.778Z", "dateUpdated": "2026-05-11T13:49:17.495Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:49:17.495Z" }, "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": "16b374ca439fb406e46e071f75428f5b033056f8", "lessThan": "9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040", "status": "affected", "versionType": "git" }, { "version": "16b374ca439fb406e46e071f75428f5b033056f8", "lessThan": "b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1", "status": "affected", "versionType": "git" }, { "version": "16b374ca439fb406e46e071f75428f5b033056f8", "lessThan": "f299522eda1566cbfbae4b15c82970fc41b03714", "status": "affected", "versionType": "git" }, { "version": "16b374ca439fb406e46e071f75428f5b033056f8", "lessThan": "945ebef997227ca8c20bad7f8a8358c8ee57a84a", "status": "affected", "versionType": "git" }, { "version": "16b374ca439fb406e46e071f75428f5b033056f8", "lessThan": "e411df81cd862ef3d5b878120b2a2fef0ca9cdb1", "status": "affected", "versionType": "git" }, { "version": "16b374ca439fb406e46e071f75428f5b033056f8", "lessThan": "9b367fe770b1b80d7bf64ed0d177544a44405f6e", "status": "affected", "versionType": "git" }, { "version": "16b374ca439fb406e46e071f75428f5b033056f8", "lessThan": "d34fb628f6ef522f996205a9e578216bbee09e84", "status": "affected", "versionType": "git" }, { "version": "16b374ca439fb406e46e071f75428f5b033056f8", "lessThan": "769b01ea68b6c49dc3cde6adf7e53927dacbd3a8", "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": "semver" }, { "version": "4.4.271", "lessThanOrEqual": "4.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.271", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.235", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.193", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.124", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.42", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.12.9", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.37", "versionEndExcluding": "4.4.271" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.37", "versionEndExcluding": "4.9.271" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.37", "versionEndExcluding": "4.14.235" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.37", "versionEndExcluding": "4.19.193" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.37", "versionEndExcluding": "5.4.124" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.37", "versionEndExcluding": "5.10.42" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.37", "versionEndExcluding": "5.12.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.37", "versionEndExcluding": "5.13" } ] } ] } ], "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()", 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