CVE-2022-48964 ravb: Fix potential use-after-free in ravb_rx_gbeth()
A use-after-free vulnerability in the Linux kernel's ravb driver allows attackers to potentially execute code or cause a system crash.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-48964?
CVE-2022-48964 is a high-severity use after free vulnerability in Linux kernel, published on 21 Oct 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:
ravb: Fix potential use-after-free in ravb_rx_gbeth()
The skb is delivered to napi_gro_receive() which may free it, after calling this, dereferencing skb may trigger use-after-free.
Weakness: CWE-416
Which versions are affected by CVE-2022-48964?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-48964?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2022-48964 being exploited?
There is no known exploitation of CVE-2022-48964 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48964, GHSA-9c44-5659-5mgq, UBUNTU-CVE-2022-48964.