In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0 INVLPGA should cause a #UD when EFER.SVME is not set. Add a check to properly inject #UD when EFER.SVME=0. [sean: tag for stable@]

A flaw was found in the Linux kernel's virtualization component, known as KVM. This vulnerability arises when a specific instruction, INVLPGA, is used in a virtualized environment without the proper security setting (EFER.SVME). The system fails to trigger an expected error, which could allow a local attacker to bypass security controls or disrupt the system's operation, leading to a denial of service.

Red Hat Enterprise Linux 10 Fix deferred kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Fix deferred kernel Red Hat Enterprise Linux 8 Fix deferred kernel-rt Red Hat Enterprise Linux 9 Fix deferred kernel Red Hat Enterprise Linux 9 Fix deferred kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-46082 https://nvd.nist.gov/vuln/detail/CVE-2026-46082 https://lore.kernel.org/linux-cve-announce/2026052700-CVE-2026-46082-48fc@gregkh/T