PT-2025-53006 · Linux+3 · Linux Kernel+3
Published
2025-11-21
·
Updated
2026-05-26
·
CVE-2025-68740
CVSS v2.0
4.6
Medium
| Vector | AV:L/AC:L/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw within the Integrity Measurement Architecture (IMA) subsystem. Specifically, the
ima match rules() function incorrectly handles error codes returned by ima filter rule match(). If ima filter rule match() returns -ENOENT, indicating a NULL rule, the check 'if (!rc)' is bypassed, leading to a false positive match. This results in extra files being measured by IMA. The issue occurs when the SELinux policy module is unloaded via 'semodule -d', and an IMA measurement is triggered before ima lsm rules is updated. The call trace includes functions such as selinux audit rule match(), ima match rules(), ima match policy(), and process measurement(). The root cause is an incorrect conditional check that allows error codes to be misinterpreted as successful matches.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Initialization
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Ubuntu