CVE-2026-42493

A flaw was found in Xen's x86 shadow paging functionality. Operations within this feature can consume excessive resources, potentially leading to a Denial of Service DoS on the affected system. This functionality has been deprecated due to its operational cost and inherent security risks...

SUSE-SU-2026:3451-1 Security update for xen

This update for xen fixes the following issues - CVE-2026-42493: x86 shadow paging is deprecated bsc1271528. - CVE-2026-42494,CVE-2026-42495,CVE-2026-62423,CVE-2026-62424,CVE-2026-62425: buffer overruns in libfsimage iso9660 handling bsc1271530. - CVE-2026-62426,CVE-2026-62427: sysctl and...

SUSE-SU-2026:3423-1 Security update for xen

This update for xen fixes the following issues - CVE-2026-42493: x86 shadow paging is deprecated bsc1271528. - CVE-2026-42494,CVE-2026-42495,CVE-2026-62423,CVE-2026-62424,CVE-2026-62425: buffer overruns in libfsimage iso9660 handling bsc1271530. - CVE-2026-62426,CVE-2026-62427: sysctl and...

SUSE-SU-2026:22966-1 Security update for the Linux Kernel RT (Live Patch 9 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.30.1 fixes various security issues: The following security issues were fixed: - CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060. - CVE-2026-43038: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach...

x86 shadow paging is deprecated

ISSUE DESCRIPTION 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,...

Oracle Linux 10 : kernel (ELSA-2026-25191)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-25191 advisory. - crypto: ccp - copy IV using skcipher ivsize CKI Backport Bot RHEL-188463 CVE-2026-53016 - futex/requeue: Revert 'Prevent NULL pointer dereference i...

kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM x86 shadow paging mechanism. This vulnerability occurs when a host page directory entry PDE mapping is changed from within the guest, leading to an unexpected role mismatch in shadow paging. This mismatch can cause a...

PT-2026-44236

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the KVM x86 shadow paging mechanism. The shadow MMU calculates Guest Frame Numbers GFNs for direct shadow pages by adding the SPTE index to sp-gfn. This...

SUSE SLED15: xen / xen-devel / xen-doc-html / xen-libs / xen-libs-32bit / etc (SUSE-SU-2023:2535-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2535-1 advisory. Security fixes: - CVE-2022-42336: Fix an issue where guests configuring AMD Speculative Store...

CVE-2022-42335

x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging HAP is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handlin...

CVE-2022-42335

x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging HAP is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handlin...