CVE-2026-23269
kernel: Linux kernel: AppArmor out-of-bounds read via crafted policy
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 18, 2026
Updated · August 20, 2026
Description
A flaw was found in the Linux kernel's AppArmor component. This vulnerability allows a local attacker to provide specially crafted AppArmor policy data. When this malicious data is processed during policy unpacking, it can lead to an out-of-bounds read in the aa_dfa_next() function. This memory corruption could result in a denial of service or the potential disclosure of sensitive information.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 · Out-of-bounds Read