SB20260828184 - Use-after-free in Linux kernel apparmor
Published: August 28, 2026
Security Bulletin ID
SB20260828184
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-80619)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a use-after-free in the aa_replace_profiles function when processing profile replacement data. A local user can trigger the vulnerable code path to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/57b1bd4486d56254bb8af1a8f3d4445bbe505290
- https://git.kernel.org/stable/c/5cba148eae6e8550c2889f5c0f94d72bed864321
- https://git.kernel.org/stable/c/7b42f95813dc9ceb6bda35afcf914630909a19f9
- https://git.kernel.org/stable/c/9d37dc6376e336dc4b4f39a7ad0d069aa70e9495
- https://git.kernel.org/stable/c/9d8e47cbce7536f19c96e37d0685a042010187ee
- https://git.kernel.org/stable/c/c0f3a3fda617beeec58708720304dd026a1a4dd7
- https://git.kernel.org/stable/c/c44de0880b7ccc15c70a6352b5e107677d32b061
- https://git.kernel.org/stable/c/dd5f1202f45a2dbe2c7dd10093f5c6bb2d8ac5bb