{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21811","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-12-29T08:45:45.772Z","datePublished":"2025-02-27T20:01:02.256Z","dateUpdated":"2026-05-11T21:06:59.508Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:06:59.508Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: protect access to buffers with no active references\n\nnilfs_lookup_dirty_data_buffers(), which iterates through the buffers\nattached to dirty data folios/pages, accesses the attached buffers without\nlocking the folios/pages.\n\nFor data cache, nilfs_clear_folio_dirty() may be called asynchronously\nwhen the file system degenerates to read only, so\nnilfs_lookup_dirty_data_buffers() still has the potential to cause use\nafter free issues when buffers lose the protection of their dirty state\nmidway due to this asynchronous clearing and are unintentionally freed by\ntry_to_free_buffers().\n\nEliminate this race issue by adjusting the lock section in this function."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/nilfs2/segment.c"],"versions":[{"version":"8c26c4e2694a163d525976e804d81cd955bbb40c","lessThan":"e1fc4a90a90ea8514246c45435662531975937d9","status":"affected","versionType":"git"},{"version":"8c26c4e2694a163d525976e804d81cd955bbb40c","lessThan":"72cf688d0ce7e642b12ddc9b2a42524737ec1b4a","status":"affected","versionType":"git"},{"version":"8c26c4e2694a163d525976e804d81cd955bbb40c","lessThan":"d8ff250e085a4c4cdda4ad1cdd234ed110393143","status":"affected","versionType":"git"},{"version":"8c26c4e2694a163d525976e804d81cd955bbb40c","lessThan":"58c27fa7a610b6e8d44e6220e7dbddfbaccaf439","status":"affected","versionType":"git"},{"version":"8c26c4e2694a163d525976e804d81cd955bbb40c","lessThan":"8e1b9201c9a24638cf09c6e1c9f224157328010b","status":"affected","versionType":"git"},{"version":"8c26c4e2694a163d525976e804d81cd955bbb40c","lessThan":"4b08d23d7d1917bef4fbee8ad81372f49b006656","status":"affected","versionType":"git"},{"version":"8c26c4e2694a163d525976e804d81cd955bbb40c","lessThan":"c437dfac9f7a5a46ac2a5e6d6acd3059e9f68188","status":"affected","versionType":"git"},{"version":"8c26c4e2694a163d525976e804d81cd955bbb40c","lessThan":"367a9bffabe08c04f6d725032cce3d891b2b9e1a","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/nilfs2/segment.c"],"versions":[{"version":"3.10","status":"affected"},{"version":"0","lessThan":"3.10","status":"unaffected","versionType":"semver"},{"version":"5.4.291","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.235","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.179","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.129","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.76","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.13","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13.2","lessThanOrEqual":"6.13.*","status":"unaffected","versionType":"semver"},{"version":"6.14","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":"3.10","versionEndExcluding":"5.4.291"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.10.235"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.15.179"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.1.129"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.6.76"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.12.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.13.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.14"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/e1fc4a90a90ea8514246c45435662531975937d9"},{"url":"https://git.kernel.org/stable/c/72cf688d0ce7e642b12ddc9b2a42524737ec1b4a"},{"url":"https://git.kernel.org/stable/c/d8ff250e085a4c4cdda4ad1cdd234ed110393143"},{"url":"https://git.kernel.org/stable/c/58c27fa7a610b6e8d44e6220e7dbddfbaccaf439"},{"url":"https://git.kernel.org/stable/c/8e1b9201c9a24638cf09c6e1c9f224157328010b"},{"url":"https://git.kernel.org/stable/c/4b08d23d7d1917bef4fbee8ad81372f49b006656"},{"url":"https://git.kernel.org/stable/c/c437dfac9f7a5a46ac2a5e6d6acd3059e9f68188"},{"url":"https://git.kernel.org/stable/c/367a9bffabe08c04f6d725032cce3d891b2b9e1a"}],"title":"nilfs2: protect access to buffers with no active references","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2025-21811","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-03-04T18:01:20.629324Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-416","description":"CWE-416 Use After Free"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-03-04T18:07:17.439Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T20:59:47.268Z"}}]}}