Linux Distros Unpatched Vulnerability : CVE-2026-98546

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - arm64/boot: Disable trapping of PMZREL0 writes to EL2 initel2fgt2 writes one mask to both HDFGRTR2EL2 and HDFGWTR2EL2. PMZREL0 is write-only, so its trap bit,...

SUSE CVE-2026-98546

In the Linux kernel, the following vulnerability has been resolved: arm64/boot: Disable trapping of PMZREL0 writes to EL2 initel2fgt2 writes one mask to both HDFGRTR2EL2 and HDFGWTR2EL2. PMZREL0 is write-only, so its trap bit, nPMZREL0, exists only in HDFGWTR2EL2 and is therefore never set: a...

DEBIAN-CVE-2026-98546

In the Linux kernel, the following vulnerability has been resolved: arm64/boot: Disable trapping of PMZREL0 writes to EL2 initel2fgt2 writes one mask to both HDFGRTR2EL2 and HDFGWTR2EL2. PMZREL0 is write-only, so its trap bit, nPMZREL0, exists only in HDFGWTR2EL2 and is therefore never set: a...

CVE-2026-98546

In the Linux kernel, the following vulnerability has been resolved: arm64/boot: Disable trapping of PMZREL0 writes to EL2 initel2fgt2 writes one mask to both HDFGRTR2EL2 and HDFGWTR2EL2. PMZREL0 is write-only, so its trap bit, nPMZREL0, exists only in HDFGWTR2EL2 and is therefore never set: a...

CVE-2026-98546

In the Linux kernel, the following vulnerability has been resolved: arm64/boot: Disable trapping of PMZREL0 writes to EL2 initel2fgt2 writes one mask to both HDFGRTR2EL2 and HDFGWTR2EL2. PMZREL0 is write-only, so its trap bit, nPMZREL0, exists only in HDFGWTR2EL2 and is therefore never set: a...

CVE-2026-98546 arm64/boot: Disable trapping of PMZR_EL0 writes to EL2

In the Linux kernel, the following vulnerability has been resolved: arm64/boot: Disable trapping of PMZREL0 writes to EL2 initel2fgt2 writes one mask to both HDFGRTR2EL2 and HDFGWTR2EL2. PMZREL0 is write-only, so its trap bit, nPMZREL0, exists only in HDFGWTR2EL2 and is therefore never set: a...

CVE-2026-98546

The Linux kernel is affected by a vulnerability in the arm64/boot component. The root cause is located in __init_el2_fgt2(), which incorrectly writes a single mask to both HDFGRTR2_EL2 and HDFGWTR2_EL2 . Because PMZR_EL0 is write-only, its trap bit (nPMZR_EL0 ) is never set, causing a PMZR_EL0 wr...

EUVD-2026-103591

In the Linux kernel, the following vulnerability has been resolved: arm64/boot: Disable trapping of PMZREL0 writes to EL2 initel2fgt2 writes one mask to both HDFGRTR2EL2 and HDFGWTR2EL2. PMZREL0 is write-only, so its trap bit, nPMZREL0, exists only in HDFGWTR2EL2 and is therefore never set: a...

CVE-2026-98546: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: arm64/boot: Disable trapping of PMZREL0 writes to EL2 initel2fgt2 writes one mask to both HDFGRTR2EL2 and HDFGWTR2EL2. PMZREL0 is write-only, so its trap bit, nPMZREL0, exists only in HDFGWTR2EL2 and is therefore never set: a...

Linux Kernel Security Vulnerabilities

Versions of the Linux kernel from 6.12.25 to 6.12.112 and from 6.14.4 to 6.15 contain security vulnerabilities. The vulnerability arises from the function initel2fgt2, which writes the same mask to HDFGRTR2EL2 and HDFGWTR2EL2. However, PMZREL0 is only write-only, and its trap bit nPMZREL0 exists...

CVE-2025-36920

In hypalloc of arch/arm64/kvm/hyp/nvhe/alloc.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

CVE-2025-36920

In hypalloc of arch/arm64/kvm/hyp/nvhe/alloc.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

CVE-2025-36920: Improper Input Validation

In hypalloc of arch/arm64/kvm/hyp/nvhe/alloc.c, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

PT-2026-24435

Name of the Vulnerable Software and Affected Versions KVM versions affected versions not specified Description An out-of-bounds write issue exists in the hyp alloc function within arch/arm64/kvm/hyp/nvhe/alloc.c. This is due to insufficient input validation. Successful exploitation could lead to...

EUVD-2025-150390

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix debug checking for np-guests using huge mappings When running with transparent huge pages and CONFIGNVHEEL2DEBUG then the debug checking in asserthostsharedguest fails on the launch of an np-guest. This WARNON...

CVE-2025-40184

The CVE-2025-40184 entry documents a Linux kernel KVM/arm64 vulnerability: when using transparent huge pages with NVHE EL2 debug, the debug check in assert_host_shared_guest() may trigger a WARN_ON leading to a host panic. The issue arises because __pkvm_host_relax_perms_guest() assumes a single-...

CVE-2025-40184: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix debug checking for np-guests using huge mappings When running with transparent huge pages and CONFIGNVHEEL2DEBUG then the debug checking in asserthostsharedguest fails on the launch of an np-guest. This WARNON...

PT-2025-51523

Уязвимость модуля arch/arm64/kvm/hyp/nvhe/ffa.c подсистемы виртуализации Kernel-based Virtual Machine KVM ядра операционной системы Linux связана с выходом операции за границы буфера. Эксплуатация уязвимости может позволить нарушителю выполнить произвольный код или повысить привилегии...

CVE-2023-53319

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Handle kvmarminit failure correctly in finalizepkvm Currently there is no synchronisation between finalizepkvm and kvmarminit initcalls. The finalizepkvm proceeds happily even if kvmarminit fails resulting in the...