CVE-2022-50860 apparmor: Fix memleak in alloc_ns()
A memory leak in the Linux kernel's AppArmor module allows attackers to cause a denial of service by exhausting system memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-50860?
CVE-2022-50860 is a high-severity memory corruption vulnerability in Linux, published on 30 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
apparmor: Fix memleak in alloc_ns()
After changes in commit a1bd627b46d1 ("apparmor: share profile name on replacement"), the hname member of struct aa_policy is not valid slab object, but a subset of that, it can not be freed by kfree_sensitive(), use aa_policy_destroy() to fix it.
Which versions are affected by CVE-2022-50860?
How do I fix CVE-2022-50860?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-50860 being exploited?
There is no known exploitation of CVE-2022-50860 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2022-50860, GHSA-g5ph-9wmf-49w8, UBUNTU-CVE-2022-50860.