https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-04T08:07:16.377392+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-63940 CVE-2026-63940 — KVM: SEV: Ignore Port I/O requests of length '0' 2026-10-04T08:07:17.344038+00:00

Affected: Linux

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

KVM: SEV: Ignore Port I/O requests of length '0'

Explicitly ignore Port I/O requests of length '0' (or count '0'), so that setting up the software scratch area (and other code) doesn't have to worry about underflowing the length, and to allow for WARNing on trying to configure the scratch area with len==0.