CVE-2026-99057

A flaw was found in the Linux kernel's Xen network frontend driver. When processing a network response chain that exceeds the allocated buffer capacity, an error handling failure prevents the socket buffer and associated memory pages from being freed. A malicious or compromised backend can exploit this flaw by sending oversized response chains, leading to a memory leak and a Denial of Service (DoS) through resource exhaustion.

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.