← Back to CVE search

CVE-2026-63940

KVM

Description

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.

CVSS 9.3EPSS 0.18%Risk 0.95
View source
Published
2026-07-19 16:17:12
Affected versions
unknown
Type
Critical software
Last modified
2026-07-27 17:44:23
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H