CVE-2022-1852 Null dereference in kernel
A NULL pointer dereference in the Linux kernel's KVM module allows a local attacker to cause a denial of service by executing an illegal instruction in a guest VM.
- 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-2022-1852?
CVE-2022-1852 is a medium-severity vulnerability in Linux kernel, published on 30 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU.
Weakness: CWE-476
Which versions are affected by CVE-2022-1852?
It affects 2 products.
Linux distribution packages (1)
kernel-source openSUSE:Tumbleweed | All versions | 5.18.2-1.1 |
Products include Linux kernel, Redhat Enterprise Linux.
How do I fix CVE-2022-1852?
Apply the vendor's patch.
Is CVE-2022-1852 being exploited?
There is no known exploitation of CVE-2022-1852 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as A-235183128, AZL-10003, DEBIAN-CVE-2022-1852, GHSA-xwhg-vr3r-8xvq, PUB-A-235183128, UBUNTU-CVE-2022-1852 and 1 more.