01 Record

CVE-2026-23411

apparmor: fix race between freeing data and fs accessing it

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

apparmor: fix race between freeing data and fs accessing it

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.14% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 3.9% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity: Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-04-01 08:36Z7 MO AGO

Last updated

2026-08-05 12:21Z2 MO AGO

Reserved

2026-01-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

276077560cc4557361daa87d876bcf22d6b0d4cfe0594cbdc8c315424d5346a6

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxc961ee5f21b202dea60b63eeef945730d92e46a6 to < a92c5e5086a87d082696245a8607666da3d80554, c961ee5f21b202dea60b63eeef945730d92e46a6 to < 667df93769c02ff581c77d2d8f162147e719c557, c961ee5f21b202dea60b63eeef945730d92e46a6 to < 3ddb961d2929bbb3204a2bba21b5d8153cd3f7cc, c961ee5f21b202dea60b63eeef945730d92e46a6 to < ae10787d955fb255d381e0d5589451dd72c614b1, c961ee5f21b202dea60b63eeef945730d92e46a6 to < eecce026399917f6efa532c56bc7a3e9dd6ee68b, c961ee5f21b202dea60b63eeef945730d92e46a6 to < 13bc2772414d68e94e273dea013181a986948ddf, c961ee5f21b202dea60b63eeef945730d92e46a6 to < 2a732ed26fbd048e7925d227af8cf9ea43fb5cc9, c961ee5f21b202dea60b63eeef945730d92e46a6 to < 8e135b8aee5a06c52a4347a5a6d51223c6f36ba3, 4.13—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/a92c5e5086a87d082696245a8607666da3d80554
git.kernel.orghttps://git.kernel.org/stable/c/667df93769c02ff581c77d2d8f162147e719c557
git.kernel.orghttps://git.kernel.org/stable/c/3ddb961d2929bbb3204a2bba21b5d8153cd3f7cc
git.kernel.orghttps://git.kernel.org/stable/c/ae10787d955fb255d381e0d5589451dd72c614b1
git.kernel.orghttps://git.kernel.org/stable/c/eecce026399917f6efa532c56bc7a3e9dd6ee68b
git.kernel.orghttps://git.kernel.org/stable/c/13bc2772414d68e94e273dea013181a986948ddf
git.kernel.orghttps://git.kernel.org/stable/c/2a732ed26fbd048e7925d227af8cf9ea43fb5cc9
git.kernel.orghttps://git.kernel.org/stable/c/8e135b8aee5a06c52a4347a5a6d51223c6f36ba3

07 Fixed in

Debian 12

linux
Fixed in 6.1.164-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.74-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.19.6-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.