CVE-2026-42492

A flaw was found in Xen. Unprivileged domains can trigger an error in the virtual interrupt request vIRQ event channel binding, specifically within the management of a bitmap related to the VIRQDOMEXC. This error path can cause the bitmap to be improperly torn down, even if it was not correctly s...

ALPINE-CVE-2026-42492

Xenstore, to have an up-to-date picture of the entire system, wants to know of domains appearing and disappearing. To make this more robust, a new XENDOMCTLgetdomainstate was introduced. The management of the bitmap underlying that operation is tied into the binding of the VIRQDOMEXC virtual IRQ...

EUVD-2026-49771

Xenstore, to have an up-to-date picture of the entire system, wants to know of domains appearing and disappearing. To make this more robust, a new XENDOMCTLgetdomainstate was introduced. The management of the bitmap underlying that operation is tied into the binding of the VIRQDOMEXC virtual IRQ...

PT-2026-65460

Xenstore, to have an up-to-date picture of the entire system, wants to know of domains appearing and disappearing. To make this more robust, a new XEN DOMCTL get domain state was introduced. The management of the bitmap underlying that operation is tied into the binding of the VIRQ DOM EXC virtua...

CVE-2026-42492: Incomplete Cleanup

Xenstore, to have an up-to-date picture of the entire system, wants to know of domains appearing and disappearing. To make this more robust, a new XENDOMCTLgetdomainstate was introduced. The management of the bitmap underlying that operation is tied into the binding of the VIRQDOMEXC virtual IRQ...

EUVD-2026-27720

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: CGX: fix bitmap leaks The RX/TX flow-control bitmaps rxfcpfvfbmap and txfcpfvfbmap are allocated by cgxlmacinit but never freed in cgxlmacexit. Unbinding and rebinding the driver therefore triggers kmemleak:...