PT-2026-29494 · Apparmor+3 · Apparmor+3

CVE-2026-23411

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Published

2026-03-01

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Updated

2026-07-01

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/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 Linux kernel's AppArmor component contained a race condition between freeing data and filesystem access to it. AppArmor was releasing the reference to i private data after removing the original entry from the filesystem. However, the inode could still be accessed by filesystem callback functions after the reference was released, leading to a potential race condition where the data could be freed while still being accessed. The rawdata/loaddata functionality was identified as the most likely candidate for triggering this race, but it was possible to trigger it for other types of data stored in i private.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Race Condition

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Weakness Enumeration

Related Identifiers

AZL-82037
BDU:2026-07605
CVE-2026-23411
OESA-2026-1862
OESA-2026-1863
OESA-2026-1864
OESA-2026-1950
OESA-2026-2582
OPENSUSE-SU-2026:20826-1
SUSE-SU-2026:2111-1
SUSE-SU-2026:21834-1
SUSE-SU-2026:21841-1
SUSE-SU-2026:21845-1
SUSE-SU-2026:21860-1
SUSE-SU-2026:21876-1
SUSE-SU-2026:21877-1
SUSE-SU-2026:21916-1
SUSE-SU-2026:21919-1
SUSE-SU-2026:2195-1
SUSE-SU-2026:2202-1
SUSE-SU-2026:2215-1
SUSE-SU-2026:2216-1
SUSE-SU-2026:2217-1
SUSE-SU-2026:2238-1
USN-8098-10
USN-8152-1
USN-8163-1
USN-8163-2
USN-8164-1
USN-8165-1
USN-8201-1
USN-8224-1
USN-8243-1
USN-8261-1
USN-8266-1
USN-8267-1

Affected Products

Apparmor
Linuxmint
Linux Kernel
Ubuntu