CVE-2024-43836 net: ethtool: pse-pd: Fix possible null-deref
A null pointer dereference in the Linux kernel's PSE-PD subsystem can cause a denial of service when specific netlink attributes are omitted.
- 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-2024-43836?
CVE-2024-43836 is a medium-severity vulnerability in Linux kernel, published on 17 Aug 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:
net: ethtool: pse-pd: Fix possible null-deref
Fix a possible null dereference when a PSE supports both c33 and PoDL, but only one of the netlink attributes is specified. The c33 or PoDL PSE capabilities are already validated in the ethnl_set_pse_validate() call.
Weakness: CWE-476
Which versions are affected by CVE-2024-43836?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-43836?
Apply the vendor's patch.
Is CVE-2024-43836 being exploited?
There is no known exploitation of CVE-2024-43836 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-43836, GHSA-9p66-4vgq-5fjx, UBUNTU-CVE-2024-43836.