CVE-2024-56715 ionic: Fix netdev notifier unregister on failure
A memory leak in the Ionic network driver occurs if device registration fails, potentially leading 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-2024-56715?
CVE-2024-56715 is a high-severity denial of service vulnerability in Linux kernel, published on 29 Dec 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:
ionic: Fix netdev notifier unregister on failure
If register_netdev() fails, then the driver leaks the netdev notifier. Fix this by calling ionic_lif_unregister() on register_netdev() failure. This will also call ionic_lif_unregister_phc() if it has already been registered.
Weakness: CWE-401
Which versions are affected by CVE-2024-56715?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-56715?
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-2024-56715 being exploited?
There is no known exploitation of CVE-2024-56715 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-55386, AZL-55425, BELL-CVE-2024-56715, DEBIAN-CVE-2024-56715, GHSA-29pg-6wgv-66x3, ROOT-OS-DEBIAN-11-CVE-2024-56715 and 1 more.