SUSE SLES12: xen / xen-devel / xen-doc-html / xen-libs / xen-libs-32bit / etc (SUSE-SU-2026:4089-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4089-1 advisory. - CVE-2026-62437: x86: DMs may cause mem leak by IRQ binding bsc1276838. - CVE-2026-79602: x86: improper handling of HVM emulation...

Xen: x86 DMs May Cause Mem Leak by IRQ Binding (XSA-509)

When guests are terminated, various pieces of cleanup need carrying out. The cleaning up of PCI devices which were assigned to guests, and the associated removal of tracking structures for IRQs used by the devices occurs relatively early in the process. Unfortunately after that point the guest...

SUSE-SU-2026:4089-1 Security update for xen

This update for xen fixes the following issues: - CVE-2026-62437: x86: DMs may cause mem leak by IRQ binding bsc1276838. - CVE-2026-79602: x86: improper handling of HVM emulation return codes bsc1276839...

Security update for xen

This update for xen fixes the following issues: CVE-2026-62437: x86: DMs may cause mem leak by IRQ binding bsc1276838. CVE-2026-79602: x86: improper handling of HVM emulation return codes bsc1276839. Special Instructions and Notes: Please reboot the system after installing this update. Patch...

Security update for xen

This update for xen fixes the following issues: CVE-2026-62437: x86: DMs may cause mem leak by IRQ binding bsc1276838. CVE-2026-79602: x86: improper handling of HVM emulation return codes bsc1276839. CVE-2026-79603: unconditionally do TLB flushing ahead of page scrubbing bsc1276841. Special...

SUSE-SU-2026:4088-1 Security update for xen

This update for xen fixes the following issues: - CVE-2026-62437: x86: DMs may cause mem leak by IRQ binding bsc1276838. - CVE-2026-79602: x86: improper handling of HVM emulation return codes bsc1276839. - CVE-2026-79603: unconditionally do TLB flushing ahead of page scrubbing bsc1276841...

Security update for xen

This update for xen fixes the following issues: CVE-2026-62437: x86: DMs may cause mem leak by IRQ binding bsc1276838. CVE-2026-79602: x86: improper handling of HVM emulation return codes bsc1276839. CVE-2026-79603: unconditionally do TLB flushing ahead of page scrubbing bsc1276841. Special...

CVE-2026-62437 x86: DMs may cause mem leak by IRQ binding

When guests are terminated, various pieces of cleanup need carrying out. The cleaning up of PCI devices which were assigned to guests, and the associated removal of tracking structures for IRQs used by the devices occurs relatively early in the process. Unfortunately after that point the guest...

CVE-2026-62437 x86: DMs may cause mem leak by IRQ binding

When guests are terminated, various pieces of cleanup need carrying out. The cleaning up of PCI devices which were assigned to guests, and the associated removal of tracking structures for IRQs used by the devices occurs relatively early in the process. Unfortunately after that point the guest...

CVE-2026-62437

A flaw in Xen allows a guest virtual machine's device model (DM) to re-establish interrupt request (IRQ) tracking structures after the initial cleanup process during guest termination. This causes certain structures to remain unallocated, resulting in a memory leak . A local attacker with control...

x86: DMs may cause mem leak by IRQ binding

ISSUE DESCRIPTION When guests are terminated, various pieces of cleanup need carrying out. The cleaning up of PCI devices which were assigned to guests, and the associated removal of tracking structures for IRQs used by the devices occurs relatively early in the process. Unfortunately after that...

CVE-2026-42492 vIRQ event channel binding may break Xenstore

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...