Vulnerability in Linux
CVE-2026-64321
In the Linux kernel, the following vulnerability has been resolved: nvme: target: rdma: fix ndev refcount leak on queue connect nvmet_rdma_queue_connect() calls nvmet_rdma_find_get_device() which acquires a reference on the returned ndev via kref_get(). On the path where the host queue backlog is exceeded and the function returns NVME_SC_CONNECT_CTRL_BUSY, reference of ndev is not released, leaking the kref. Fix this by adding a goto to the existing put_device label before the early return.
EPSS: 0.001 (2.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions 7.2-rc1, 7.2, 6.12.96
- Linux Linux_kernel
References
Frequently asked questions
- What is CVE-2026-64321?
- CVE-2026-64321 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-07-25.
- How severe is CVE-2026-64321?
- Medium severity. CVSS v3 base score is 5.5 out of 10.