Out-of-bounds Write Affecting reiserfs-kmp-coco package, versions <6.4.0-15061.9.coco15sp6.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES156-REISERFSKMPCOCO-8544543
  • published20 Dec 2024
  • disclosed19 Dec 2024

Introduced: 19 Dec 2024

NewCVE-2024-50230  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 reiserfs-kmp-coco to version 6.4.0-15061.9.coco15sp6.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream reiserfs-kmp-coco package and not the reiserfs-kmp-coco package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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.

CVSS Scores

version 3.1