EUVD-2026-59178

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Respect read-only PFN when mapping L1 VNCR KVM currently maps the L1 VNCR into the host stage-1 by relying entirely on the permissions of the guest stage-1. At the same time, it is entirely possible that the backi...

CVE-2026-72280

CVE-2026-72280 concerns the Linux kernel KVM on arm64. The vulnerability arises from a logic issue where a guest could write to the ZCR_EL2 sysreg alias in a nested context if FEAT_NV2 is advertised to the L1 hypervisor. The fix is to drop the bogus WARN that could lead to a hyp_panic once hyp ve...

CVE-2026-72279 KVM: arm64: nv: Respect read-only PFN when mapping L1 VNCR

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Respect read-only PFN when mapping L1 VNCR KVM currently maps the L1 VNCR into the host stage-1 by relying entirely on the permissions of the guest stage-1. At the same time, it is entirely possible that the backi...

CVE-2026-72279

The CVE-2026-72279 entry concerns the Linux kernel KVM arm64 implementation for the L1 VNCR mapping. The fix ensures that the host stage-1 mapping respects the read-only status of the guest PFN by caching PFN writability in the VNCR TLB and using this to constrain fixmap permissions. If a guest t...

EUVD-2026-59179

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Drop bogus WARN for write to ZCREL2 It is entirely possible for a guest to write to the ZCREL2 sysreg alias while in a nested context, as it is expected if FEATNV2 is advertised to the L1 hypervisor. Get rid of th...

CVE-2026-72280 KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Drop bogus WARN for write to ZCREL2 It is entirely possible for a guest to write to the ZCREL2 sysreg alias while in a nested context, as it is expected if FEATNV2 is advertised to the L1 hypervisor. Get rid of th...

CVE-2026-72280 KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Drop bogus WARN for write to ZCREL2 It is entirely possible for a guest to write to the ZCREL2 sysreg alias while in a nested context, as it is expected if FEATNV2 is advertised to the L1 hypervisor. Get rid of th...

CVE-2026-72279 KVM: arm64: nv: Respect read-only PFN when mapping L1 VNCR

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Respect read-only PFN when mapping L1 VNCR KVM currently maps the L1 VNCR into the host stage-1 by relying entirely on the permissions of the guest stage-1. At the same time, it is entirely possible that the backi...

EUVD-2026-59177

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Re-translate VNCR before injecting abort KVM faults in the VNCR page with FOLLWRITE whenever the guest aborts for a write, similar to how a regular stage-2 mapping is handled. It is entirely possible that the gues...

CVE-2026-72278 KVM: arm64: nv: Re-translate VNCR before injecting abort

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Re-translate VNCR before injecting abort KVM faults in the VNCR page with FOLLWRITE whenever the guest aborts for a write, similar to how a regular stage-2 mapping is handled. It is entirely possible that the gues...

EUVD-2026-59176

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory When constructing an L1 VNCR mapping, KVM unconditionally uses cacheable memory attributes, even if the underlying PFN isn't memory. This gets particularly hairy if the...

CVE-2026-72277

Summary (CVE-2026-72277): In the Linux kernel’s KVM for arm64, the L1 VNCR mapping logic now rejects non-memory PFNs when constructing VNCR mappings, due to unconditional use of cacheable memory attributes that could trigger an SError on writeback. The vulnerability affected KVM’s handling of VNC...

CVE-2026-72277 KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory When constructing an L1 VNCR mapping, KVM unconditionally uses cacheable memory attributes, even if the underlying PFN isn't memory. This gets particularly hairy if the...

CVE-2026-72278

In CVE-2026-72278, the Linux kernel KVM for arm64 mitigates a VNCR abort handling issue by invalidating the VNCR TLB and re-fetching the translation when a VNCR abort occurs. This allows the host mapping to be faulted in for write on the second attempt, addressing a scenario where a guest could r...

CVE-2026-72277 KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory When constructing an L1 VNCR mapping, KVM unconditionally uses cacheable memory attributes, even if the underlying PFN isn't memory. This gets particularly hairy if the...

CVE-2026-72278 KVM: arm64: nv: Re-translate VNCR before injecting abort

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Re-translate VNCR before injecting abort KVM faults in the VNCR page with FOLLWRITE whenever the guest aborts for a write, similar to how a regular stage-2 mapping is handled. It is entirely possible that the gues...

KVM: s390: pci: Fix handling of AIF enable without AISB

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PT-2026-72467

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the Kernel-based Virtual Machine KVM for arm64, the L1 Virtual CPU Control Register VNCR is mapped into the host stage-1 by relying solely on guest stage-1 permissions. This occurs ev...

PT-2026-72471

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 component. The problem occurs when updating the Interrupt Routing Table Entry IRTE for bypass fails, leaving a dangling pointer in...

PT-2026-72470

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A lifetime issue exists in the KVM component where the kvm io bus get dev function returns a device matched only by address. If the matched device is not of the expected type, the object...