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CVE-2024-50230 Detail

Description

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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Hyperlink Resource
https://git.kernel.org/stable/c/41e192ad2779cae0102879612dfe46726e4396aa Patch 
https://git.kernel.org/stable/c/56c6171932a7fb267ac6cb4ff8759b93ee1d0e2e Patch 
https://git.kernel.org/stable/c/64afad73e4623308d8943645e5631f2c7a2d7971 Patch 
https://git.kernel.org/stable/c/994b2fa13a6c9cf3feca93090a9c337d48e3d60d Patch 
https://git.kernel.org/stable/c/aa0cee46c5d3fd9a39575a4c8a4f65f25f095b89 Patch 
https://git.kernel.org/stable/c/cd0cdb51b15203fa27d4b714be83b7dfffa0b752 Patch 
https://git.kernel.org/stable/c/f05dbebb8ee34882505d53d83af7d18f28a49248 Patch 
https://git.kernel.org/stable/c/f2f1fa446676c21edb777e6d2bc4fa8f956fab68 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-50230
NVD Published Date:
11/09/2024
NVD Last Modified:
11/13/2024
Source:
kernel.org