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CVE-2026-23411

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CVE-2026-23411

Published: Apr 1, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

7.8

HIGH

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix race between freeing data and fs accessing it AppArmor was putting the reference to i_private data on its end after removing the original entry from the file system. However the inode can aand does live beyond that point and it is possible that some of the fs call back functions will be invoked after the reference has been put, which results in a race between freeing the data and accessing it through the fs. While the rawdata/loaddata is the most likely candidate to fail the race, as it has the fewest references. If properly crafted it might be possible to trigger a race for the other types stored in i_private. Fix this by moving the put of i_private referenced data to the correct place which is during inode eviction.

VendorProductVersions

Linux

Linux

affected
c961ee5f21b202dea60b63eeef945730d92e46a6 - < a92c5e5086a87d082696245a8607666da3d80554
affected
c961ee5f21b202dea60b63eeef945730d92e46a6 - < 667df93769c02ff581c77d2d8f162147e719c557
affected
c961ee5f21b202dea60b63eeef945730d92e46a6 - < 3ddb961d2929bbb3204a2bba21b5d8153cd3f7cc
affected
c961ee5f21b202dea60b63eeef945730d92e46a6 - < ae10787d955fb255d381e0d5589451dd72c614b1
affected
c961ee5f21b202dea60b63eeef945730d92e46a6 - < eecce026399917f6efa532c56bc7a3e9dd6ee68b

+3 more versions

Linux

Linux

affected
4.13
unaffected
0 - < 4.13
unaffected
5.10.253 - <= 5.10.*
unaffected
5.15.203 - <= 5.15.*
unaffected
6.1.169 - <= 6.1.*

+5 more versions

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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