CVE-2026-90420

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90420", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.813Z", "datePublished": "2026-09-17T16:09:44.558Z", "dateUpdated": "2026-10-19T09:03:24.266Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:03:24.266Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix infinite loop in nilfs_clean_segments()\n\nsyzbot reported a hung task in nilfs_transaction_begin(). This occurs\nbecause the cleaner ioctl falls into an infinite loop if\nnilfs_segctor_construct() repeatedly returns -EROFS (e.g. the device\nis remounted as read-only after an I/O error).\n\nCurrently in nilfs_clean_segments(), if err is non-zero, it logs the\nerror and sleeps but doesn't abort when it encounters a terminal error\nlike -EROFS. This causes the thread to loop forever.\n\nFix this by breaking out of the loop if nilfs_segctor_construct()\nreturns -EROFS. This matches the behaviour in\nnilfs_segctor_write_out(), which also handles -EROFS."}], "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": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "lessThan": "e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3", "status": "affected", "versionType": "git"}, {"version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "lessThan": "217b967ad7887a3e1ebc08f46f6484e081acd4b4", "status": "affected", "versionType": "git"}, {"version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "lessThan": "3bcdbdaac884a4baa59716cf9bd9470c75276e2d", "status": "affected", "versionType": "git"}, {"version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "lessThan": "d7afca8e4efbf4c455b4663c29ae59fde2f1b671", "status": "affected", "versionType": "git"}, {"version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "lessThan": "c07e5ad6539e7e9350d5c65cbf8adb69d1711b15", "status": "affected", "versionType": "git"}, {"version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "lessThan": "1fc6df85b4954b6fda9c351843aaca3c06f66d8d", "status": "affected", "versionType": "git"}, {"version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "lessThan": "8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8", "status": "affected", "versionType": "git"}, {"version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "lessThan": "ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18", "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": "2.6.30", "status": "affected"}, {"version": "0", "lessThan": "2.6.30", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "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": "2.6.30", "versionEndExcluding": "5.10.270"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3"}, {"url": "https://git.kernel.org/stable/c/217b967ad7887a3e1ebc08f46f6484e081acd4b4"}, {"url": "https://git.kernel.org/stable/c/3bcdbdaac884a4baa59716cf9bd9470c75276e2d"}, {"url": "https://git.kernel.org/stable/c/d7afca8e4efbf4c455b4663c29ae59fde2f1b671"}, {"url": "https://git.kernel.org/stable/c/c07e5ad6539e7e9350d5c65cbf8adb69d1711b15"}, {"url": "https://git.kernel.org/stable/c/1fc6df85b4954b6fda9c351843aaca3c06f66d8d"}, {"url": "https://git.kernel.org/stable/c/8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8"}, {"url": "https://git.kernel.org/stable/c/ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18"}], "title": "nilfs2: fix infinite loop in nilfs_clean_segments()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/nilfs2/segment.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3", "status": "affected", "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "versionType": "git"}, {"lessThan": "217b967ad7887a3e1ebc08f46f6484e081acd4b4", "status": "affected", "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "versionType": "git"}, {"lessThan": "3bcdbdaac884a4baa59716cf9bd9470c75276e2d", "status": "affected", "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "versionType": "git"}, {"lessThan": "d7afca8e4efbf4c455b4663c29ae59fde2f1b671", "status": "affected", "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "versionType": "git"}, {"lessThan": "c07e5ad6539e7e9350d5c65cbf8adb69d1711b15", "status": "affected", "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "versionType": "git"}, {"lessThan": "1fc6df85b4954b6fda9c351843aaca3c06f66d8d", "status": "affected", "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "versionType": "git"}, {"lessThan": "8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8", "status": "affected", "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "versionType": "git"}, {"lessThan": "ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18", "status": "affected", "version": "9ff05123e3bfbb1d2b68ba1d9bf1f7d1dffc1453", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/nilfs2/segment.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.30"}, {"lessThan": "2.6.30", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.270", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.221", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "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 infinite loop in nilfs_clean_segments()\n\nsyzbot reported a hung task in nilfs_transaction_begin(). This occurs\nbecause the cleaner ioctl falls into an infinite loop if\nnilfs_segctor_construct() repeatedly returns -EROFS (e.g. the device\nis remounted as read-only after an I/O error).\n\nCurrently in nilfs_clean_segments(), if err is non-zero, it logs the\nerror and sleeps but doesn't abort when it encounters a terminal error\nlike -EROFS. This causes the thread to loop forever.\n\nFix this by breaking out of the loop if nilfs_segctor_construct()\nreturns -EROFS. This matches the behaviour in\nnilfs_segctor_write_out(), which also handles -EROFS."}], "id": "CVE-2026-90420", "lastModified": "2026-10-19T09:19:36.350", "metrics": {}, "published": "2026-09-17T17:17:46.440", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1fc6df85b4954b6fda9c351843aaca3c06f66d8d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/217b967ad7887a3e1ebc08f46f6484e081acd4b4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3bcdbdaac884a4baa59716cf9bd9470c75276e2d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8cea0bc78ac64cb88da49c07f80bf2cf9fb7aff8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c07e5ad6539e7e9350d5c65cbf8adb69d1711b15"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ce5a5ad1a8330a2fcfdd9ec2ab341be739e89a18"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d7afca8e4efbf4c455b4663c29ae59fde2f1b671"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e3e9367dae1a6392cbb14ab0b2ab5edbf39735c3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

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