CVE-2026-45893: apparmor: Fix & Optimize table creation from possibly unaligned memory
In the Linux kernel, the following vulnerability has been resolved:
apparmor: Fix & Optimize table creation from possibly unaligned memory
Source blob may come from userspace and might be unaligned. Try to optize the copying process by avoiding unaligned memory accesses.
- Added Fixes tag - Added "Fix &" to description as this doesn't just optimize but fixes a potential unaligned memory access [jj: remove duplicate word "convert" in comment trigger checkpatch warning]
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-45893?
CVE-2026-45893 has a severity rating of high, assessed at 7.1 on the CVSS scale.
How do I fix CVE-2026-45893?
To fix CVE-2026-45893, ensure that you apply the latest patches available for the Linux kernel, specifically those addressing AppArmor optimizations.
What are the potential impacts of CVE-2026-45893?
If exploited, CVE-2026-45893 could lead to system instability or denial of service due to unaligned memory accesses.
Which software versions are affected by CVE-2026-45893?
CVE-2026-45893 affects certain versions of the Linux kernel that utilize the AppArmor security module.
When was CVE-2026-45893 published?
CVE-2026-45893 was published on May 27, 2026.