CVE-2024-23850 Denial of service in n/a
A race condition in the Linux kernel's Btrfs filesystem can cause an assertion failure and system crash when a subvolume is accessed immediately after creation.
- 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-2024-23850?
CVE-2024-23850 is a medium-severity denial of service vulnerability in Linux kernel, published on 23 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In btrfs_get_root_ref in fs/btrfs/disk-io.c in the Linux kernel through 6.7.1, there can be an assertion failure and crash because a subvolume can be read out too soon after its root item is inserted upon subvolume creation.
Weakness: CWE-617
Which versions are affected by CVE-2024-23850?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-23850?
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-2024-23850 being exploited?
There is no known exploitation of CVE-2024-23850 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-33969, AZL-34879, DEBIAN-CVE-2024-23850, GHSA-8c82-xj9x-mxgj, UBUNTU-CVE-2024-23850.