{"id":"CVE-2021-47167","state":"PUBLISHED","title":"NFS: Fix an Oopsable condition in __nfs_pageio_add_request()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix an Oopsable condition in __nfs_pageio_add_request()\n\nEnsure that nfs_pageio_error_cleanup() resets the mirror array contents,\nso that the structure reflects the fact that it is now empty.\nAlso change the test in nfs_pageio_do_add_request() to be more robust by\nchecking whether or not the list is empty rather than relying on the\nvalue of pg_count.","publishedAt":"2024-03-25T09:16:19.952Z","updatedAt":"2026-05-11T13:49:16.329Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a7d42ddb3099727f58366fa006f850a219cce6c8","status":"affected","lessThan":"1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e","versionType":"git"},{"version":"a7d42ddb3099727f58366fa006f850a219cce6c8","status":"affected","lessThan":"ee21cd3aa8548e0cbc8c67a80b62113aedd2d101","versionType":"git"},{"version":"a7d42ddb3099727f58366fa006f850a219cce6c8","status":"affected","lessThan":"15ac6f14787649e8ebd75c142e2c5d2a243c8490","versionType":"git"},{"version":"a7d42ddb3099727f58366fa006f850a219cce6c8","status":"affected","lessThan":"56517ab958b7c11030e626250c00b9b1a24b41eb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfs/pagelist.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.0","versionType":"semver"},{"version":"5.4.124","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.42","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.12.9","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfs/pagelist.c"]}],"references":["https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e","https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101","https://git.kernel.org/stable/c/15ac6f14787649e8ebd75c142e2c5d2a243c8490","https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47167.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47167","state":"PUBLISHED","datePublished":"2024-03-25T09:16:19.952Z","dateUpdated":"2026-05-11T13:49:16.329Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-03-25T09:12:14.111Z"},"containers":{"cna":{"title":"NFS: Fix an Oopsable condition in __nfs_pageio_add_request()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix an Oopsable condition in __nfs_pageio_add_request()\n\nEnsure that nfs_pageio_error_cleanup() resets the mirror array contents,\nso that the structure reflects the fact that it is now empty.\nAlso change the test in nfs_pageio_do_add_request() to be more robust by\nchecking whether or not the list is empty rather than relying on the\nvalue of pg_count."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a7d42ddb3099727f58366fa006f850a219cce6c8","status":"affected","lessThan":"1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e","versionType":"git"},{"version":"a7d42ddb3099727f58366fa006f850a219cce6c8","status":"affected","lessThan":"ee21cd3aa8548e0cbc8c67a80b62113aedd2d101","versionType":"git"},{"version":"a7d42ddb3099727f58366fa006f850a219cce6c8","status":"affected","lessThan":"15ac6f14787649e8ebd75c142e2c5d2a243c8490","versionType":"git"},{"version":"a7d42ddb3099727f58366fa006f850a219cce6c8","status":"affected","lessThan":"56517ab958b7c11030e626250c00b9b1a24b41eb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfs/pagelist.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.0","versionType":"semver"},{"version":"5.4.124","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.42","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.12.9","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nfs/pagelist.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e"},{"url":"https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101"},{"url":"https://git.kernel.org/stable/c/15ac6f14787649e8ebd75c142e2c5d2a243c8490"},{"url":"https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T13:49:16.329Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.4.124"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.10.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.12.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0","versionEndExcluding":"5.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE 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