CVE-2026-23360 nvme: fix admin queue leak on controller reset
A memory leak in the Linux kernel NVMe driver during controller resets can lead 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-2026-23360?
CVE-2026-23360 is a medium-severity denial of service vulnerability in Linux kernel, published on 25 Mar 2026. 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:
nvme: fix admin queue leak on controller reset
When nvme_alloc_admin_tag_set() is called during a controller reset, a previous admin queue may still exist. Release it properly before allocating a new one to avoid orphaning the old queue.
This fixes a regression introduced by commit 03b3bcd319b3 ("nvme: fix admin request_queue lifetime").
Weakness: CWE-401
Which versions are affected by CVE-2026-23360?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-23360?
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-2026-23360 being exploited?
There is no known exploitation of CVE-2026-23360 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-84050, BELL-CVE-2026-23360, DEBIAN-CVE-2026-23360, GHSA-mx2c-4m76-c7r4, ROOT-OS-DEBIAN-13-CVE-2026-23360, ROOT-OS-UBUNTU-2404-CVE-2026-23360 and 1 more.