CVE-2024-45021 memcg_write_event_control(): fix a user-triggerable oops
A local attacker can trigger a kernel oops in the memory control group subsystem by writing to a specific file, causing a denial of service.
- 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-2024-45021?
CVE-2024-45021 is a high-severity vulnerability in Linux kernel, published on 11 Sep 2024. 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:
memcg_write_event_control(): fix a user-triggerable oops
we are *not* guaranteed that anything past the terminating NUL is mapped (let alone initialized with anything sane).
Weakness: CWE-476
Which versions are affected by CVE-2024-45021?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-45021?
Apply the vendor's patch.
Is CVE-2024-45021 being exploited?
There is no known exploitation of CVE-2024-45021 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-49170, AZL-49242, BELL-CVE-2024-45021, DEBIAN-CVE-2024-45021, GHSA-5m73-3pch-86m2, UBUNTU-CVE-2024-45021.