CVE-2024-50230 (GCVE-0-2024-50230)

Vulnerability from cvelistv5 – Published: 2024-11-09 10:14 – Updated: 2026-08-05 11:42
VLAI
Title
nilfs2: fix kernel bug due to missing clearing of checked flag
Summary
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix kernel bug due to missing clearing of checked flag Syzbot reported that in directory operations after nilfs2 detects filesystem corruption and degrades to read-only, __block_write_begin_int(), which is called to prepare block writes, may fail the BUG_ON check for accesses exceeding the folio/page size, triggering a kernel bug. This was found to be because the "checked" flag of a page/folio was not cleared when it was discarded by nilfs2's own routine, which causes the sanity check of directory entries to be skipped when the directory page/folio is reloaded. So, fix that. This was necessary when the use of nilfs2's own page discard routine was applied to more than just metadata files.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8c26c4e2694a163d525976e804d81cd955bbb40c , < 994b2fa13a6c9cf3feca93090a9c337d48e3d60d (git)
Affected: 8c26c4e2694a163d525976e804d81cd955bbb40c , < 64afad73e4623308d8943645e5631f2c7a2d7971 (git)
Affected: 8c26c4e2694a163d525976e804d81cd955bbb40c , < aa0cee46c5d3fd9a39575a4c8a4f65f25f095b89 (git)
Affected: 8c26c4e2694a163d525976e804d81cd955bbb40c , < f05dbebb8ee34882505d53d83af7d18f28a49248 (git)
Affected: 8c26c4e2694a163d525976e804d81cd955bbb40c , < cd0cdb51b15203fa27d4b714be83b7dfffa0b752 (git)
Affected: 8c26c4e2694a163d525976e804d81cd955bbb40c , < f2f1fa446676c21edb777e6d2bc4fa8f956fab68 (git)
Affected: 8c26c4e2694a163d525976e804d81cd955bbb40c , < 56c6171932a7fb267ac6cb4ff8759b93ee1d0e2e (git)
Affected: 8c26c4e2694a163d525976e804d81cd955bbb40c , < 41e192ad2779cae0102879612dfe46726e4396aa (git)
Create a notification for this product.
Linux Linux Affected: 3.10
Unaffected: 0 , < 3.10 (semver)
Unaffected: 4.19.323 , ≤ 4.19.* (semver)
Unaffected: 5.4.285 , ≤ 5.4.* (semver)
Unaffected: 5.10.229 , ≤ 5.10.* (semver)
Unaffected: 5.15.171 , ≤ 5.15.* (semver)
Unaffected: 6.1.116 , ≤ 6.1.* (semver)
Unaffected: 6.6.60 , ≤ 6.6.* (semver)
Unaffected: 6.11.7 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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      "id": "CVE-2024-50230",
      "lastModified": "2024-11-13T18:31:09.340",
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    "microsoft_vex": {
      "current_release_date": "2026-02-18T14:12:28.000Z",
      "cve": "CVE-2024-50230",
      "id": "msrc_CVE-2024-50230",
      "initial_release_date": "2024-11-02T00:00:00.000Z",
      "product_status:fixed": "5",
      "product_status:known_affected": "5",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "nilfs2: fix kernel bug due to missing clearing of checked flag",
      "url": "https://msrc.microsoft.com/csaf/vex/2024/msrc_cve-2024-50230.json",
      "version": "3"
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So, fix that.\\n\\nThis was necessary when the use of nilfs2\u0027s own page discard routine was\\napplied to more than just metadata files.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: se corrige un error del kernel debido a la falta de limpieza del indicador marcado Syzbot inform\u00f3 que en las operaciones de directorio despu\u00e9s de que nilfs2 detecta corrupci\u00f3n del sistema de archivos y se degrada a solo lectura, __block_write_begin_int(), que se llama para preparar escrituras en bloque, puede fallar la verificaci\u00f3n BUG_ON para accesos que excedan el tama\u00f1o de folio/p\u00e1gina, lo que desencadena un error del kernel. Se descubri\u00f3 que esto se deb\u00eda a que el indicador \\\"marcado\\\" de una p\u00e1gina/folio no se borraba cuando era descartado por la propia rutina de nilfs2, lo que hace que se omita la verificaci\u00f3n de cordura de las entradas del directorio cuando se vuelve a cargar la p\u00e1gina/folio del directorio. Entonces, arreglen eso. Esto era necesario cuando el uso de la propia rutina de descarte de p\u00e1gina de nilfs2 se aplicaba a m\u00e1s que solo archivos de metadatos.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/nilfs2/page.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"8c26c4e2694a163d525976e804d81cd955bbb40c\",\"lessThan\":\"994b2fa13a6c9cf3feca93090a9c337d48e3d60d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c26c4e2694a163d525976e804d81cd955bbb40c\",\"lessThan\":\"64afad73e4623308d8943645e5631f2c7a2d7971\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c26c4e2694a163d525976e804d81cd955bbb40c\",\"lessThan\":\"aa0cee46c5d3fd9a39575a4c8a4f65f25f095b89\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c26c4e2694a163d525976e804d81cd955bbb40c\",\"lessThan\":\"f05dbebb8ee34882505d53d83af7d18f28a49248\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c26c4e2694a163d525976e804d81cd955bbb40c\",\"lessThan\":\"cd0cdb51b15203fa27d4b714be83b7dfffa0b752\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c26c4e2694a163d525976e804d81cd955bbb40c\",\"lessThan\":\"f2f1fa446676c21edb777e6d2bc4fa8f956fab68\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c26c4e2694a163d525976e804d81cd955bbb40c\",\"lessThan\":\"56c6171932a7fb267ac6cb4ff8759b93ee1d0e2e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8c26c4e2694a163d525976e804d81cd955bbb40c\",\"lessThan\":\"41e192ad2779cae0102879612dfe46726e4396aa\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/nilfs2/page.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.10\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.10\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.323\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.285\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.229\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.171\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.116\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.60\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11.7\",\"lessThanOrEqual\":\"6.11.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-10-01T20:16:44.018414Z\",\"id\":\"CVE-2024-50230\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T14:12:52+00:00",
      "cve": "CVE-2024-50230",
      "id": "CVE-2024-50230",
      "initial_release_date": "2024-11-09T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: nilfs2: fix kernel bug due to missing clearing of checked flag",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-50230.json",
      "version": "3"
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      "initial_release_date": "2024-11-10T03:49:34Z",
      "product_status:known_affected": "357",
      "product_status:known_not_affected": "139",
      "product_status:recommended": "611",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-50230",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-50230.json",
      "version": "55"
    },
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\"unaffected\", \"version\": \"6.1.116\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.60\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/nilfs2/page.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/994b2fa13a6c9cf3feca93090a9c337d48e3d60d\"}, {\"url\": \"https://git.kernel.org/stable/c/64afad73e4623308d8943645e5631f2c7a2d7971\"}, {\"url\": \"https://git.kernel.org/stable/c/aa0cee46c5d3fd9a39575a4c8a4f65f25f095b89\"}, {\"url\": \"https://git.kernel.org/stable/c/f05dbebb8ee34882505d53d83af7d18f28a49248\"}, {\"url\": \"https://git.kernel.org/stable/c/cd0cdb51b15203fa27d4b714be83b7dfffa0b752\"}, {\"url\": \"https://git.kernel.org/stable/c/f2f1fa446676c21edb777e6d2bc4fa8f956fab68\"}, {\"url\": \"https://git.kernel.org/stable/c/56c6171932a7fb267ac6cb4ff8759b93ee1d0e2e\"}, {\"url\": \"https://git.kernel.org/stable/c/41e192ad2779cae0102879612dfe46726e4396aa\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnilfs2: fix kernel bug due to missing clearing of checked flag\\n\\nSyzbot reported that in directory operations after nilfs2 detects\\nfilesystem corruption and degrades to read-only,\\n__block_write_begin_int(), which is called to prepare block writes, may\\nfail the BUG_ON check for accesses exceeding the folio/page size,\\ntriggering a kernel bug.\\n\\nThis was found to be because the \\\"checked\\\" flag of a page/folio was not\\ncleared when it was discarded by nilfs2\u0027s own routine, which causes the\\nsanity check of directory entries to be skipped when the directory\\npage/folio is reloaded.  So, fix that.\\n\\nThis was necessary when the use of nilfs2\u0027s own page discard routine was\\napplied to more than just metadata files.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.323\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.285\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.229\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.171\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.116\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.60\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.7\", \"versionStartIncluding\": \"3.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"3.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:47:53.959Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50230\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:47:53.959Z\", \"dateReserved\": \"2024-10-21T19:36:19.973Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-09T10:14:40.576Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.