CVE-2026-90418

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90418", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.813Z", "datePublished": "2026-09-17T16:09:43.223Z", "dateUpdated": "2026-10-30T12:35:33.513Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:35:33.513Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch\n\nSyzbot reported a kernel BUG triggered within nilfs_copy_dirty_pages(),\nwhich copies dirty DAT file folios/pages to its shadow page cache. The\nBUG occurs when a retrieved dirty folio/page unexpectedly loses its\n'dirty' status.\n\nThis issue arises because, since the commit referenced below, the 'dirty'\nflag of a folio/page can be cleared asynchronously after the filesystem\ndetects metadata corruption and transitions to read-only mode.\n\nResolve the issue by returning an -EROFS error if the filesystem has\ntransitioned to read-only mode. Also change the behavior to issue a\nkernel warning only once instead of triggering a kernel BUG when this\nunexpected 'dirty' state is detected while the filesystem is not in\nread-only mode."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/nilfs2/page.c"], "versions": [{"version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "lessThan": "6879c603a8d07af82da83768cc2342a11bd444e5", "status": "affected", "versionType": "git"}, {"version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "lessThan": "5166a21b12f549774f2983fa86d2526ea9e66ace", "status": "affected", "versionType": "git"}, {"version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "lessThan": "4e1f21e7540b25d83f86b50780836ed7d2afcc93", "status": "affected", "versionType": "git"}, {"version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "lessThan": "3904fb0ee741ebbbc27ec8f50a9bb6cd31e8af05", "status": "affected", "versionType": "git"}, {"version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "lessThan": "f181155baf0c93a74ebe804c6cecbe970e78ee9e", "status": "affected", "versionType": "git"}, {"version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "lessThan": "66f4ad3ce158902e5f98afea93189972ed8750c2", "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/page.c"], "versions": [{"version": "3.10", "status": "affected"}, {"version": "0", "lessThan": "3.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6879c603a8d07af82da83768cc2342a11bd444e5"}, {"url": "https://git.kernel.org/stable/c/5166a21b12f549774f2983fa86d2526ea9e66ace"}, {"url": "https://git.kernel.org/stable/c/4e1f21e7540b25d83f86b50780836ed7d2afcc93"}, {"url": "https://git.kernel.org/stable/c/3904fb0ee741ebbbc27ec8f50a9bb6cd31e8af05"}, {"url": "https://git.kernel.org/stable/c/f181155baf0c93a74ebe804c6cecbe970e78ee9e"}, {"url": "https://git.kernel.org/stable/c/66f4ad3ce158902e5f98afea93189972ed8750c2"}], "title": "nilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/nilfs2/page.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6879c603a8d07af82da83768cc2342a11bd444e5", "status": "affected", "version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "versionType": "git"}, {"lessThan": "5166a21b12f549774f2983fa86d2526ea9e66ace", "status": "affected", "version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "versionType": "git"}, {"lessThan": "4e1f21e7540b25d83f86b50780836ed7d2afcc93", "status": "affected", "version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "versionType": "git"}, {"lessThan": "3904fb0ee741ebbbc27ec8f50a9bb6cd31e8af05", "status": "affected", "version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "versionType": "git"}, {"lessThan": "f181155baf0c93a74ebe804c6cecbe970e78ee9e", "status": "affected", "version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "versionType": "git"}, {"lessThan": "66f4ad3ce158902e5f98afea93189972ed8750c2", "status": "affected", "version": "8c26c4e2694a163d525976e804d81cd955bbb40c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/nilfs2/page.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.10"}, {"lessThan": "3.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch\n\nSyzbot reported a kernel BUG triggered within nilfs_copy_dirty_pages(),\nwhich copies dirty DAT file folios/pages to its shadow page cache. The\nBUG occurs when a retrieved dirty folio/page unexpectedly loses its\n'dirty' status.\n\nThis issue arises because, since the commit referenced below, the 'dirty'\nflag of a folio/page can be cleared asynchronously after the filesystem\ndetects metadata corruption and transitions to read-only mode.\n\nResolve the issue by returning an -EROFS error if the filesystem has\ntransitioned to read-only mode. Also change the behavior to issue a\nkernel warning only once instead of triggering a kernel BUG when this\nunexpected 'dirty' state is detected while the filesystem is not in\nread-only mode."}], "id": "CVE-2026-90418", "lastModified": "2026-10-30T13:20:52.760", "metrics": {}, "published": "2026-09-17T17:17:46.167", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3904fb0ee741ebbbc27ec8f50a9bb6cd31e8af05"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4e1f21e7540b25d83f86b50780836ed7d2afcc93"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5166a21b12f549774f2983fa86d2526ea9e66ace"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/66f4ad3ce158902e5f98afea93189972ed8750c2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6879c603a8d07af82da83768cc2342a11bd444e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f181155baf0c93a74ebe804c6cecbe970e78ee9e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8c26c4e2694a163d525976e804d81cd955bbb40c,5166a21b12f549774f2983fa86d2526ea9e66ace)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8c26c4e2694a163d525976e804d81cd955bbb40c,4e1f21e7540b25d83f86b50780836ed7d2afcc93)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8c26c4e2694a163d525976e804d81cd955bbb40c,3904fb0ee741ebbbc27ec8f50a9bb6cd31e8af05)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8c26c4e2694a163d525976e804d81cd955bbb40c,f181155baf0c93a74ebe804c6cecbe970e78ee9e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8c26c4e2694a163d525976e804d81cd955bbb40c,66f4ad3ce158902e5f98afea93189972ed8750c2)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,3.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T08:45:06.487975+00:00", "updated": "2026-09-19T15:00:12.173900+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}