EUVD-2026-38982

In the Linux kernel, the following vulnerability has been resolved: perf/amd/ibs: Avoid calling perfallowkernel from the IBS NMI handler Calling perfallowkernel from the NMI context is unsafe and could be fatal. Capture the permission at event-initialization time by storing it in event-hw.flags,...

CVE-2026-46035

In the Linux kernel, the following vulnerability has been resolved: mm/pagealloc: return NULL early from allocfrozenpagesnolock in NMI on UP On UP kernels !CONFIGSMP, spintrylock is a no-op that unconditionally succeeds even when the lock is already held. As a result, allocfrozenpagesnolock calle...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000789)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000789 advisory. arch/x86/entry/entry64.S in the Linux kernel before 4.1.6 on the x8664 platform improperly relies on espfix64 during nested NMI processing, which allows local users ...

CVE-2025-38670 arm64/entry: Mask DAIF in cpu_switch_to(), call_on_irq_stack()

In the Linux kernel, the following vulnerability has been resolved: arm64/entry: Mask DAIF in cpuswitchto, callonirqstack cpuswitchto and callonirqstack manipulate SP to change to different stacks along with the Shadow Call Stack if it is enabled. Those two stack changes cannot be done atomically...

SUSE CVE-2022-49781

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd: Fix crash due to race between amdpmuenableall, perf NMI and throttling amdpmuenableall does: if !testbitidx, cpuc-activemask continue; amdpmuenableeventcpuc-eventsidx; A perf NMI of another event can come between...

UBUNTU-CVE-2024-39483

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: WARN on vNMI + NMI window iff NMIs are outright masked When requesting an NMI window, WARN on vNMI support being enabled if and only if NMIs are actually masked, i.e. if the vCPU is already handling an NMI. KVM's ABI fo...

kernel: x86-64: IRET faults during NMIs processing

A flaw was found in the way the Linux kernel handled IRET faults during the processing of NMIs. An unprivileged, local user could use this flaw to crash the system or, potentially although highly unlikely, escalate their privileges on the system...