Important: kernel-livepatch-6.12.92-122.166

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration CVE-2026-74580 Affected Packages: kernel-livepatch-6.12.92-122.166 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-6.12.88-119.160

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration CVE-2026-74580 Affected Packages: kernel-livepatch-6.12.88-119.160 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-6.18.38-73.137

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration CVE-2026-74580 Affected Packages: kernel-livepatch-6.18.38-73.137 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-6.18.35-68.127

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration CVE-2026-74580 Affected Packages: kernel-livepatch-6.18.35-68.127 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-6.1.176-221.367

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration CVE-2026-74580 Affected Packages: kernel-livepatch-6.1.176-221.367 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-6.18.35-68.129

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration CVE-2026-74580 Affected Packages: kernel-livepatch-6.18.35-68.129 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-6.1.174-217.345

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration CVE-2026-74580 Affected Packages: kernel-livepatch-6.1.174-217.345 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel-livepatch-6.12.94-123.174

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration CVE-2026-74580 Affected Packages: kernel-livepatch-6.12.94-123.174 Issue Correction: Please ensure you have live patching enabled. Run dnf update...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration CVE-2026-74580 Affected Packages: kernel Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for the...

CVE-2026-74580

A flaw was found in the Linux kernel's vhost subsystem. A local attacker could exploit this vulnerability by reconfiguring a virtual ring vring using specific ioctl commands while a device Input/Output Memory Management Unit IOTLB is attached. This improper handling of the vring metadata cache ca...

CVE-2026-74580: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration vq-metaiotlb caches the vhostiotlbmap that backs each vring metadata region, and iotlbaccessok returns early on a cache hit, taking the hit as proof that the region h...