CVE-2024-53240 xen/netfront: fix crash when removing device
A local attacker can cause a system crash in the Linux kernel by removing a Xen netfront device after suspend/resume due to missing queue checks.
- 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-2024-53240?
CVE-2024-53240 is a medium-severity vulnerability in Linux kernel, published on 24 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:
xen/netfront: fix crash when removing device
When removing a netfront device directly after a suspend/resume cycle it might happen that the queues have not been setup again, causing a crash during the attempt to stop the queues another time.
Fix that by checking the queues are existing before trying to stop them.
This is XSA-465 / CVE-2024-53240.
Which versions are affected by CVE-2024-53240?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-53240?
Apply the vendor's patch.
Is CVE-2024-53240 being exploited?
There is no known exploitation of CVE-2024-53240 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-53240, DEBIAN-CVE-2024-53240, GHSA-prjx-w4x5-gf5v, ROOT-OS-UBUNTU-2204-CVE-2024-53240, UBUNTU-CVE-2024-53240.