PT-2024-21875
CVE-2024-27389
·
Published
2024-02-22
·
Updated
2026-10-09
Description by
CVSS 3.1
7.8
HighMetricsAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue arises when unloading a modular pstore backend with records in pstorefs, triggering a dput() double-drop warning. This warning occurs due to the incorrect use of
d drop() and dput() as mentioned in Documentation/filesystems/vfs.rst, leading to a reference counting problem. The solution involves using d invalidate() and updating the code to not check for error codes that can never happen.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploitability
Exploit
Impacts
Vendors
Affected products
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