CVE-2022-48706 vdpa: ifcvf: Do proper cleanup if IFCVF init fails
A memory leak in the Linux kernel's ifcvf driver during initialization failure can lead to resource exhaustion and 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-2022-48706?
CVE-2022-48706 is a medium-severity denial of service vulnerability in Linux kernel, published on 21 May 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:
vdpa: ifcvf: Do proper cleanup if IFCVF init fails
ifcvf_mgmt_dev leaks memory if it is not freed before returning. Call is made to correct return statement so memory does not leak. ifcvf_init_hw does not take care of this so it is needed to do it here.
Weakness: CWE-401
Which versions are affected by CVE-2022-48706?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48706?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-48706 being exploited?
There is no known exploitation of CVE-2022-48706 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-56247, DEBIAN-CVE-2022-48706, GHSA-c5rq-j6hh-2mxr, ROOT-OS-DEBIAN-11-CVE-2022-48706, ROOT-OS-UBUNTU-2204-CVE-2022-48706, UBUNTU-CVE-2022-48706.