CVE-2024-50230 (GCVE-0-2024-50230)
Vulnerability from cvelistv5
Published
2024-11-09 10:14
Modified
2026-08-05 11:42
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8c26c4e2694a163d525976e804d81cd955bbb40c
Version: 8c26c4e2694a163d525976e804d81cd955bbb40c
Version: 8c26c4e2694a163d525976e804d81cd955bbb40c
Version: 8c26c4e2694a163d525976e804d81cd955bbb40c
Version: 8c26c4e2694a163d525976e804d81cd955bbb40c
Version: 8c26c4e2694a163d525976e804d81cd955bbb40c
Version: 8c26c4e2694a163d525976e804d81cd955bbb40c
Version: 8c26c4e2694a163d525976e804d81cd955bbb40c
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    "datePublished": "2024-11-09T10:14:40.576Z",
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    "dateUpdated": "2026-08-05T11:42:39.000Z",
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\"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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