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smiiiiiiiiiiiiiiii 利用一个非常非常非常非常非常非常长的中断来攻击系统管理模式（SMM）。 概述 事实证明，你可以仅凭一条极其耗时的机器指令，就攻破 SMM——这个在每颗 x86 CPU 后台隐形运行的安全、超特权执行环境。 SMM 要求所有核心要么同时处于 SMM 中，要么同时处于 SMM 外。它的安全模型离不开这一点——当一个线程进入 SMM 时，它会强制所有其他线程也进入 SMM。 要打破这一点，我们只需要一个忙到没注意到自己应该加入 SMM 的核心。 其原理大致如下： 核心 0 - 开始一条长指令 | | | 核心 1 - 邀请核心 0 进入 smm | | |...

AZL-105275 CVE-2026-81627 affecting package qemu 10.1.0-1

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset DLCK protection and injecting code...

CVE-2026-81627: Out-of-bounds Write

A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipset DLCK protection and injecting code...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Forcibly leave nested virtualization mode when SMM state is toggled The nested virtualization mode is forcibly exited if the user space toggles the SMM state using KVMSETVCPUEVENTS or KVMSYNCX86EVENTS. If the user space...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Immediately reset the MMU context when the SMM flag is cleared The MMU context should be reset immediately when the SMM flag of the vCPU is cleared, so that the SMM flag in the MMU context is always synchronized with th...

CVE-2026-10589

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

CVE-2026-10588

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10587

A potential out-of-bounds write vulnerability could allow a local privileged attacker to modify power management settings in System Management Mode...

CVE-2026-10589

Technical details (affected product, component, versions, exploitability) are not publicly available in the provided documents. Monitor for updates.

CVE-2026-10589

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

CVE-2026-10589

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

EUVD-2026-44981

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

CVE-2026-10589

A potential out of bounds write vulnerability could allow a local privileged attacker to execute code in System Management Mode...

CVE-2026-10588

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10588

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10588

Technical details (affected products/components/root cause/fix) are not provided in the supplied documents. Monitor Lenovo advisories and CVE records for updates.

EUVD-2026-44980

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10588

A potential vulnerability could allow a local privileged attacker to disclose the address of protected System Management Mode memory...

CVE-2026-10587

CVE-2026-10587 is described in connected documents as a potential out-of-bounds write vulnerability that could allow a local privileged attacker to modify power management settings in System Management Mode. The root cause is an out-of-bounds write; impact is indicated as high on integrity and av...

CVE-2026-10587

A potential out-of-bounds write vulnerability could allow a local privileged attacker to modify power management settings in System Management Mode...