Xen Security Advisory 522 v1 (CVE-2026-98375) - Linux xen-netfront: backend can crash guest via malformed RX packets

Summary by Cyber Security News9 Oct 2026, 11:24 CET

About this summary. This is a short excerpt from the description that oss-security published with its article. Cyber Security News did not report or verify the underlying story. Read the original: https://seclists.org/oss-sec/2026/q4/105

Posted by Xen . org security team on Oct 09 Xen Security Advisory CVE-2026-98375 / XSA-522 Linux xen-netfront: backend can crash guest via malformed RX packets ISSUE DESCRIPTION If a RX packet sent from the networking backend to the Linux xen-netfront driver is split into multiple slots and the first slot is shorter than an Ethernet header, a BUG() will crash the guest. This is a backend induced Denial of Service (DoS). IMPACT A malicious network...

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