CVE-2022-49035 media: s5p_cec: limit msg.len to CEC_MAX_MSG_SIZE
A missing length check in the s5p_cec driver could allow a denial of service if hardware does not limit message size.
- 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-2022-49035?
CVE-2022-49035 is a medium-severity denial of service vulnerability in Linux kernel, published on 2 Jan 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:
media: s5p_cec: limit msg.len to CEC_MAX_MSG_SIZE
I expect that the hardware will have limited this to 16, but just in case it hasn't, check for this corner case.
Weakness: CWE-770
Which versions are affected by CVE-2022-49035?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49035?
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-2022-49035 being exploited?
There is no known exploitation of CVE-2022-49035 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49035, GHSA-9fxm-qh6m-23f8, UBUNTU-CVE-2022-49035.