{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-47179", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-03-25T09:12:14.112Z", "datePublished": "2024-03-25T09:16:28.787Z", "dateUpdated": "2026-05-23T15:19:28.951Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:19:28.951Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()\n\nCommit de144ff4234f changes _pnfs_return_layout() to call\npnfs_mark_matching_lsegs_return() passing NULL as the struct\npnfs_layout_range argument. Unfortunately,\npnfs_mark_matching_lsegs_return() doesn't check if we have a value here\nbefore dereferencing it, causing an oops.\n\nI'm able to hit this crash consistently when running connectathon basic\ntests on NFS v4.1/v4.2 against Ontap." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/nfs/pnfs.c" ], "versions": [ { "version": "80e34f4957ec3010c85f9bb0b568a8d46acdf535", "lessThan": "4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42", "status": "affected", "versionType": "git" }, { "version": "7b7b9774643220e53eef58c15bb29bd4182fe053", "lessThan": "42637ca25c7d7b5a92804a679af5192e8c1a9f48", "status": "affected", "versionType": "git" }, { "version": "9ffa7967f9379a0a1b924e9ffeda709d72237da7", "lessThan": "39785761feadf261bc5101372b0b0bbaf6a94494", "status": "affected", "versionType": "git" }, { "version": "6be0e4b59314e4a836495f6ffdc5d2c5b079deeb", "lessThan": "aba3c7795f51717ae316f3566442dee7cc3eeccb", "status": "affected", "versionType": "git" }, { "version": "2fafe7d5047f98791afd9a1d90d2afb70debc590", "lessThan": "f9890652185b72b8de9ebeb4406037640b6e1b53", "status": "affected", "versionType": "git" }, { "version": "7e65ea887d0c0997f3053acd91a027af45e71c5b", "lessThan": "b090d110e66636bca473fd8b98d5c97b555a965a", "status": "affected", "versionType": "git" }, { "version": "de144ff4234f935bd2150108019b5d87a90a8a96", "lessThan": "a421d218603ffa822a0b8045055c03eae394a7eb", "status": "affected", "versionType": "git" }, { "version": "96260bde1ea8ae31a5402fe506abbb8951d5a42c", "status": "affected", "versionType": "git" }, { "version": "5.11.20", "lessThan": "5.12", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/nfs/pnfs.c" ], "versions": [ { "version": "4.9.269", "lessThan": "4.9.271", "status": "affected", "versionType": "semver" }, { "version": "4.14.233", "lessThan": "4.14.235", "status": "affected", "versionType": "semver" }, { "version": "4.19.191", "lessThan": "4.19.193", "status": "affected", "versionType": "semver" }, { "version": "5.4.118", "lessThan": "5.4.124", "status": "affected", "versionType": "semver" }, { "version": "5.10.36", "lessThan": "5.10.42", "status": "affected", "versionType": "semver" }, { "version": "5.12.3", "lessThan": "5.12.9", "status": "affected", "versionType": "semver" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.269", "versionEndExcluding": "4.9.271" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.233", "versionEndExcluding": "4.14.235" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.191", "versionEndExcluding": "4.19.193" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.118", "versionEndExcluding": "5.4.124" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.36", "versionEndExcluding": "5.10.42" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12.3", "versionEndExcluding": "5.12.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11.20" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42" }, { "url": "https://git.kernel.org/stable/c/42637ca25c7d7b5a92804a679af5192e8c1a9f48" }, { "url": "https://git.kernel.org/stable/c/39785761feadf261bc5101372b0b0bbaf6a94494" }, { "url": "https://git.kernel.org/stable/c/aba3c7795f51717ae316f3566442dee7cc3eeccb" }, { "url": "https://git.kernel.org/stable/c/f9890652185b72b8de9ebeb4406037640b6e1b53" }, { "url": "https://git.kernel.org/stable/c/b090d110e66636bca473fd8b98d5c97b555a965a" }, { "url": "https://git.kernel.org/stable/c/a421d218603ffa822a0b8045055c03eae394a7eb" } ], "title": "NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-47179", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-03-25T15:17:57.286141Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T17:21:16.888Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:32:07.318Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/42637ca25c7d7b5a92804a679af5192e8c1a9f48", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/39785761feadf261bc5101372b0b0bbaf6a94494", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/aba3c7795f51717ae316f3566442dee7cc3eeccb", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/f9890652185b72b8de9ebeb4406037640b6e1b53", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/b090d110e66636bca473fd8b98d5c97b555a965a", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/a421d218603ffa822a0b8045055c03eae394a7eb", "tags": [ "x_transferred" ] } ] } ] } }