CVE-2026-64071

A flaw was found in the Linux kernel's NVMe over PCI Express (NVMe-PCIe) driver. This vulnerability, a use-after-free error, occurs when the system attempts to free host memory twice in certain error handling scenarios, particularly during Host Memory Buffer (HMB) setup for NVMe devices. An attacker could potentially trigger this condition by causing I/O errors, leading to a NULL pointer dereference and a system crash, resulting in a Denial of Service (DoS).

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.