{"dataType":"CVE_RECORD","dataVersion":"5.1","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":"2025-05-04T12:41:11.823Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T12:41:11.823Z"},"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"}]},{"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"]}]}]}}