CVE-2024-26964

In the Linux kernel, the following vulnerability has been resolved:

usb: xhci: Add error handling in xhci_map_urb_for_dma

The Linux kernel CVE team has assigned CVE-2024-26964 to this issue.

Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024050130-CVE-2024-26964-54c8@gregkh/T

This vulnerability is rated as Low severity because exploitation requires an uncommon memory allocation failure during active USB transfers, limiting the blast radius to a local denial of service. In typical enterprise environments, the USB xHCI driver manages host controller communications, but a missing return check on buffer allocation under out-of-memory conditions can cause a kernel panic. Because an attacker cannot trigger this remotely, cannot compromise confidentiality or integrity, and cannot gain elevated privileges, the practical risk across standard Red Hat deployments is minimal.

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.