CVE-2024-50230
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-50230
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50230.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-50230
- Downstream
- Related
- Published
- 2024-11-09T11:15:08Z
- Modified
- 2025-08-09T20:01:27Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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, _blockwritebeginint(), 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
-
- https://git.kernel.org/stable/c/41e192ad2779cae0102879612dfe46726e4396aa
- https://git.kernel.org/stable/c/56c6171932a7fb267ac6cb4ff8759b93ee1d0e2e
- https://git.kernel.org/stable/c/64afad73e4623308d8943645e5631f2c7a2d7971
- https://git.kernel.org/stable/c/994b2fa13a6c9cf3feca93090a9c337d48e3d60d
- https://git.kernel.org/stable/c/aa0cee46c5d3fd9a39575a4c8a4f65f25f095b89
- https://git.kernel.org/stable/c/cd0cdb51b15203fa27d4b714be83b7dfffa0b752
- https://git.kernel.org/stable/c/f05dbebb8ee34882505d53d83af7d18f28a49248
- https://git.kernel.org/stable/c/f2f1fa446676c21edb777e6d2bc4fa8f956fab68