CVE-2024-50230
HighIn 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.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-787CVE-2024-50230 is a Out-of-bounds Write vulnerability
What is Out-of-bounds Write?
The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE
Affected versions
Linux kernel versions
3.10
and later are affected. Fixed in
4.19.323,
5.4.285,
5.10.229,
5.15.171,
6.1.116,
6.6.60,
6.11.7,
6.12
and their respective stable series.
References
The following references provide additional information about CVE-2024-50230 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/41e192ad2779cae0102879612dfe46726e4396aa
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PatchKernel patch commithttps://git.kernel.org/stable/c/56c6171932a7fb267ac6cb4ff8759b93ee1d0e2e
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PatchKernel patch commithttps://git.kernel.org/stable/c/64afad73e4623308d8943645e5631f2c7a2d7971
Frequently asked questions
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What is CVE-2024-50230?
CVE-2024-50230 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . It affects Linux kernel versions from 3.10 onward and has been patched in 4.19.323, 5.4.285, 5.10.229 and others. CVE-2024-50230 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2024-50230?
CVE-2024-50230 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2024-50230?
Yes — CVE-2024-50230 has been patched. Fixed versions include 4.19.323, 5.4.285, 5.10.229 and others. If you are running Linux kernel 3.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2024-50230 actively exploited?
No — CVE-2024-50230 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Out-of-bounds Write (CWE-787)?
The product writes data past the end or before the beginning of the intended buffer. View CWE-787 on MITRE CWE →