CVE-2025-68259

A flaw was found in the Linux kernel's Kernel-based Virtual Machine (KVM) subsystem. This vulnerability arises from incorrect handling of software interrupt instructions (INT3/INTO) when the code stream is modified. A local attacker within a guest virtual machine could exploit this by causing the KVM to decode the wrong instruction, leading to an incorrect instruction pointer (RIP). This can result in the guest kernel panicking, effectively causing a denial of service.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.