CVE-2024-53164 net: sched: fix ordering of qlen adjustment
A logic error in Linux kernel network scheduling can cause parent qdiscs to fail notifications, potentially leading to 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-2024-53164?
CVE-2024-53164 is a high-severity denial of service vulnerability in Linux kernel, published on 27 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:
net: sched: fix ordering of qlen adjustment
Changes to sch->q.qlen around qdisc_tree_reduce_backlog() need to happen _before_ a call to said function because otherwise it may fail to notify parent qdiscs when the child is about to become empty.
Which versions are affected by CVE-2024-53164?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-53164?
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-2024-53164 being exploited?
There is no known exploitation of CVE-2024-53164 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-53164, DEBIAN-CVE-2024-53164, GHSA-4vvx-v299-79g8, UBUNTU-CVE-2024-53164.