CVE-2026-79602 x86: improper handling of HVM emulation return codes

A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG in Xen...

CVE-2026-79602

CVE-2026-79602 is a vulnerability in the Xen hypervisor (x86) caused by improper handling of HVM emulation return codes. A guest with a PCI device assigned that has at least a BAR mapped to the I/O port space can trigger a BUG() in Xen, leading to a denial of service where the host becomes unresp...

UBUNTU-CVE-2026-79602

improper handling of HVM emulation return codes: A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG in Xen. A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG in Xen. Xen versions 4.6 and later are...

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-2026-79602

improper handling of HVM emulation return codes: A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG in Xen. A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG in Xen. Xen versions 4.6 and later are...

x86: improper handling of HVM emulation return codes

ISSUE DESCRIPTION A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG in Xen. IMPACT Passing through a PCI device with at least one BAR in IO address space to unprivileged HVM guests can result in a Denial of Service DoS affecting the entire host...

SUSE CVE-2026-68092

In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksour...

CVE-2026-68092

A flaw was found in the Linux kernel's time/jiffies clocksource. During early boot, the jiffies clocksource is used before it is properly registered, causing its maximum delta value to remain at zero. This issue prevents the system's time from progressing, leading to a significant boot delay,...

Linux Distros Unpatched Vulnerability : CVE-2026-68092

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a...

CVE-2026-68092

In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksour...

UBUNTU-CVE-2026-68092

In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksour...

CVE-2026-68092 time/jiffies: Register jiffies clocksource before usage

In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jiffies clocksource before usage Teddy reported that a XEN HVM has a long boot delay, which was bisected to the recent enhancements to the negative motion detection. It turned out that the jiffies clocksour...

ALPINE-CVE-2026-42493

Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out overly costly. Since alternatives HVM/PVH: HAP, PV: shim are commonly available, the decision was to deprecate the functionality, while still retainin...

CVE-2026-42493 x86 shadow paging is deprecated

Addressing certain issues, in particular related to operations which may take excessively long and therefore would need preemption, has turned out overly costly. Since alternatives HVM/PVH: HAP, PV: shim are commonly available, the decision was to deprecate the functionality, while still retainin...

PoD: Don't try to reclaim special pages

ISSUE DESCRIPTION A guest started with Populated on Demand enabled PoD can attempt to reclaim pages which aren't regular guest RAM. This can cause corruption of memory management state in Xen. IMPACT A buggy or malicious guest can cause corruption of Xen's state, leading to crashes or other...

Viridian STIMER division by zero

ISSUE DESCRIPTION The logic to handle periodic Viridian STIMERs performs a division with an unchecked user-controlled divisor value, that can be set to zero to cause a DE fault. IMPACT Enabling Viridian STIMERs to unprivileged HVM guests can result in a Denial of Service DoS affecting the entire...

ALPINE-CVE-2026-42486

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-42486

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-42486 Multiple RBAC issues in XAPI

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...

CVE-2026-42486 Multiple RBAC issues in XAPI

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. XAPI can configure different users with different roles, using Role Based Access Control. For more details, see:...