DEBIAN-CVE-2026-79609

XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root page table, the...

CVE-2026-79609 x86: XPTI may break on huge-memory systems

XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root page table, the...

CVE-2026-79609

XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root page table, the...

x86: XPTI may break on huge-memory systems

ISSUE DESCRIPTION XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root...

CVE-2026-79609: Undefined Security Weakness

XPTI Xen Page Table Isolation was introduced to mitigate Meltdown CVE-2017-5754, one aspect of XSA-254. This involves copying 64-bit PV guest page table entries from guest-chosen root page tables to the Xen- chosen one which is in actual use by hardware. To read the guest root page table, the...

SUSE CVE-2026-79603

x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen if needed when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbe...

ALPINE-CVE-2026-79603

x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen if needed when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbe...

CVE-2026-79603

x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen if needed when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbe...

CVE-2026-79603

x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen if needed when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbe...

CVE-2026-79603: Improper Control of a Resource Through its Lifetime

x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen if needed when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbe...

CVE-2026-79603: Improper Control of a Resource Through its Lifetime

x86 PV guests can free memory pages while still keeping a stale TLB entry pointing to them. A TLB flush is only issued by Xen if needed when the page is re-used. Since it's possible for the page to be scrubbed ahead of the TLB flush, there's a window where a PV guest can modify an already scrubbe...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004308)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004308 advisory. An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions o...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001065)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001065 advisory. Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service...

EUVD-2020-18278

Malware in sbrugna...

EUVD-2019-8189

Malware in sbrugna...

EUVD-2007-5877

Malware in sbrugna...

EUVD-2014-1740

Malware in sbrugna...

EUVD-2016-2665

Malware in sbrugna...

EUVD-2020-18281

Malware in sbrugna...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414391)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-414391 advisory. The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol .bss. This allows Xen PV guest OS users to cause a denial of service or...