HomeDefectsLIN1025-16968
Acknowledged

LIN1025-16968 : Security Advisory - linux - CVE-2026-63938

Created: Aug 1, 2026    Updated: Aug 11, 2026
Found In Version: 10.25.33.2
Severity: Standard
Applicable for: Wind River Linux LTS 25
Component/s: Kernel

Description

In the Linux kernel, the following vulnerability has been resolved:  KVM: SEV: Check PSC request indices against the actual size of the buffer  When processing Page State Change (PSC) requests, validate the PSC buffer against the effective size of the scratch area, which could be less than the maximum size if the guest provided a pointer that isn't exactly at the start of the GHCB shared buffer.