CVE-2010-4525: Linux kernel 2.6.33 and 2.6.34.y does not initialize the kvm_vcpu_events->interrupt.pad structure member, w...

Security readout for executives and security teams

This is a legacy Linux kernel KVM information leak. A local user could potentially read sensitive bytes left on the kernel stack because one padding field was not initialized. The sources do not show remote attack, active exploitation, or confirmed privilege escalation. Exposure is most likely on old Linux systems running KVM with kernel 2.6.33 or 2.6.34.y, or vendor kernels carrying the vulnerable code. Modern supported kernels are unlikely to be affected, but vendor backport status must be verified. Prioritize remediation for shared virtualization hosts, multi-user systems, and legacy Linux estates. This is not presented as an actively exploited internet-scale issue, but kernel memory disclosure can weaken isolation and support later attacks. Mitigation focus: Identify hosts running Linux kernel 2.6.33 or 2.6.34.y.; Apply relevant vendor kernel advisories or patched kernel updates.; Review Red Hat RHSA-2011:0007 and RHSA-2011:0028 if applicable..

Prepared

Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.