PT-2024-29731 · Linux+6 · Linux Kernel+6
Heming Zhao
·
Published
2024-06-14
·
Updated
2025-09-29
·
CVE-2024-42077
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue arises from the code in
ocfs2 dio end io write() estimating the number of necessary transaction credits using ocfs2 calc extend credits(), which does not account for arbitrarily large IO or an arbitrary number of extents. This can lead to the exhaustion of transaction credits when dealing with many single block extents, triggering a WARN ON in jbd2 journal dirty metadata() and causing OCFS2 to abort. The problem was encountered on a heavily fragmented OCFS2 filesystem. To resolve the issue, ensure the transaction always has enough credits for one extent insert before each call of ocfs2 mark extent written().Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu