Security update for xen
This update for xen fixes the following issues: Security issues fixed: - CVE-2025-27466: NULL pointer dereference in the Viridian interface when updating the reference TSC area (bsc#1248807). - CVE-2025-58142: NULL pointer dereference in the Viridian interface due to assumption that the SIM page is mapped when a synthetic timer message has to be delivered (bsc#1248807). - CVE-2025-58143: information leak and reference counter underflow in the Viridian interface due to race in the mapping of the reference TSC page (bsc#1248807). Other issues fixed: - efi: Call FreePages() only if needed (bsc#1027519). - x86/hpet: do local APIC EOI after interrupt processing (bsc#1027519). - x86/hvm/ioreq: Fix condition in hvm_alloc_legacy_ioreq_gfn() (bsc#1027519). - x86/idle: Fix the C6 eoi_errata[] list to include NEHALEM_EX (bsc#1027519). - x86/iommu: setup MMCFG ahead of IOMMU (bsc#1027519). - x86/mce: Adjustments to intel_init_ppin() (bsc#1027519). - x86/mkelf32: pad load segment to 2Mb boundary (bsc#1027519).
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
This update for xen fixes the following issues: Security issues fixed: - CVE-2025-27466: NULL pointer dereference in the Viridian interface when updating the reference TSC area (bsc#1248807). - CVE-2025-58142: NULL pointer dereference in the Viridian interface due to assumption that the SIM page is mapped when a synthetic timer message has to be delivered (bsc#1248807). - CVE-2025-58143: information leak and reference counter underflow in the Viridian interface due to race in the mapping of the reference TSC page (bsc#1248807). Other issues fixed: - efi: Call FreePages() only if needed (bsc#1027519). - x86/hpet: do local APIC EOI after interrupt processing (bsc#1027519). - x86/hvm/ioreq: Fix condition in hvm_alloc_legacy_ioreq_gfn() (bsc#1027519). - x86/idle: Fix the C6 eoi_errata[] list to include NEHALEM_EX (bsc#1027519). - x86/iommu: setup MMCFG ahead of IOMMU (bsc#1027519). - x86/mce: Adjustments to intel_init_ppin() (bsc#1027519). - x86/mkelf32: pad load segment to 2Mb boundary (bsc#1027519).
05 / REFERENCES