CVE-2026-98154 nvme-rdma: fix -EIO cleanup order in queue_rq

What is CVE-2026-98154?

CVE-2026-98154 is a high-severity use after free vulnerability in Linux kernel, published on 25 Sep 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-rdma: fix -EIO cleanup order in queue_rq

On -EIO, the RDMA queue_rq path reports a host path error and then still cleans up the command and unmaps the SQE DMA. The path error helper completes the request, so that is double cleanup and DMA unmap after the request is already complete.

Unmap the SQE first, then report the host path error. Skip the outer command cleanup on that path.

Weakness: CWE-415

Which versions are affected by CVE-2026-98154?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-98154?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-98154 being exploited?

There is no known exploitation of CVE-2026-98154 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-104813, BELL-CVE-2026-98154, DEBIAN-CVE-2026-98154, GHSA-3m7w-v98f-hg72, UBUNTU-CVE-2026-98154.