CVE-2026-74298 RDMA/core: Fix FRMR set pinned push error path
A resource leak in the Linux kernel RDMA core allows local attackers to cause denial of service by triggering pool allocation failures.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-74298?
CVE-2026-74298 is a denial of service vulnerability in Linux, published on 15 Aug 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:
RDMA/core: Fix FRMR set pinned push error path
Add destruction of FRMR handles in case the push to the pool fails. This prevents resources leak in case pool page allocation fails.
Which versions are affected by CVE-2026-74298?
How do I fix CVE-2026-74298?
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-2026-74298 being exploited?
There is no known exploitation of CVE-2026-74298 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-74298, GHSA-m4vj-49h4-gxp3, UBUNTU-CVE-2026-74298.