CVE-2024-26769 nvmet-fc: avoid deadlock on delete association path
A deadlock in the Linux kernel NVMe over Fabrics target driver allows local attackers to cause a system hang during association deletion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-26769?
CVE-2024-26769 is a high-severity denial of service vulnerability in Linux kernel, published on 3 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
nvmet-fc: avoid deadlock on delete association path
When deleting an association the shutdown path is deadlocking because we try to flush the nvmet_wq nested. Avoid this by deadlock by deferring the put work into its own work item.
Which versions are affected by CVE-2024-26769?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-26769?
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-2024-26769 being exploited?
There is no known exploitation of CVE-2024-26769 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-26769, DEBIAN-CVE-2024-26769, GHSA-hq45-85qj-9w7c, ROOT-OS-DEBIAN-11-CVE-2024-26769, UBUNTU-CVE-2024-26769.