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...

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...

PT-2026-65460

Name of the Vulnerable Software and Affected Versions Xenstore affected versions not specified Description Xenstore uses XEN DOMCTL get domain state to track the appearance and disappearance of domains. The management of the bitmap supporting this operation is linked to the binding of the VIRQ DO...

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:...