Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fixed the issue where unrecoverable MCE calls the async handler from NMI. The machine check handler is not considered NMI on 64s. The earlier handler is the actual NMI handler; it schedules the machinecheckexception...

CVE-2026-43477

In the Linux kernel, the following vulnerability has been resolved: drm/i915/vrr: Configure VRR timings after enabling TRANSDDIFUNCCTL Apparently ICL may hang with an MCE if we write TRANSVRRVMAX/FLIPLINE before enabling TRANSDDIFUNCCTL. Personally I was only able to reproduce a hang on an Dell X...

CVE-2026-43477 drm/i915/vrr: Configure VRR timings after enabling TRANS_DDI_FUNC_CTL

In the Linux kernel, the following vulnerability has been resolved: drm/i915/vrr: Configure VRR timings after enabling TRANSDDIFUNCCTL Apparently ICL may hang with an MCE if we write TRANSVRRVMAX/FLIPLINE before enabling TRANSDDIFUNCCTL. Personally I was only able to reproduce a hang on an Dell X...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-013254)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013254 advisory. In the Linux kernel, the following vulnerability has been resolved: x86/MCE/AMD: Use an u64 for bankmap Thee maximum number of MCA banks is 64 MAXNRBANKS, see...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-011186)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011186 advisory. In the Linux kernel, the following vulnerability has been resolved: hugetlbfs: don't delete error page from pagecache This change is very similar to the change that...

Towards Remote Attestation of Microarchitectural Attacks: The Case of Rowhammer

Microarchitectural vulnerabilities increasingly undermine the assumption that hardware can be treated as a reliable root of trust. Prevention mechanisms often lag behind evolving attack techniques, leaving deployed systems unable to assume continued trustworthiness. We propose a shift from...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-005635)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005635 advisory. In the Linux kernel, the following vulnerability has been resolved: x86/MCE/AMD: Use an u64 for bankmap Thee maximum number of MCA banks is 64 MAXNRBANKS, see...

CVE-2023-31364

Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine VM to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service...

CVE-2023-31364

Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine VM to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service...

CVE-2023-31364

Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine VM to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service...

CVE-2023-31364

Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine VM to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service...

CVE-2023-31364

Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine VM to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service...

EUVD-2023-35675

Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine VM to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service...

CVE-2023-31364

CVE-2023-31364 involves improper handling of direct memory writes in the IOMMU. A malicious guest VM could flood the host with writes, potentially triggering a fatal machine check error (MCE) and denial of service. Connected details indicate an AMD-specific risk vector where guest VMs may flood t...

PT-2026-22189

Name of the Vulnerable Software and Affected Versions versions affected versions not specified Description A flaw exists due to improper handling of direct memory writes in the input-output memory management unit. A malicious guest virtual machine VM could potentially overwhelm the host with writ...

AMD Guest Initiated Machine Check Errors - Lenovo Support US

No description provided...

HPESBHF05023 rev.1 - Certain HPE SimpliVity Servers Using Certain AMD EPYC Processors, AMD-SB-7059: Guest Initiated Machine Check Errors, Denial of Service Vulnerability

Potential Security Impact: Remote: Denial of Service DoS SUPPORTED SOFTWARE VERSIONS: ONLY impacted versions are listed. HPE SimpliVity 325 Gen11 - Prior to SimpliVity Support Pack SVTSP Gen11 v20260116 CVSS Scores: | CVE | CVSS Vector | Base Score | | --- | --- | --- | | CVE-2023-31364 |...

HPESBHF05021 rev.1 - Certain HPE ProLiant AMD DL/XL Servers Using Certain AMD EPYC Processors, AMD-SB-7059: Guest Initiated Machine Check Errors, Denial of Service Vulnerability

Potential Security Impact: Remote: Denial of Service DoS SUPPORTED SOFTWARE VERSIONS: ONLY impacted versions are listed. HPE ProLiant Compute DL325 Gen12 - Prior to v1.3411-28-2025 HPE ProLiant Compute DL345 Gen12 - Prior to v1.3411-28-2025 HPE ProLiant DL145 Gen11 - Prior to v1.7008-07-2025 HPE...

Guest Initiated Machine Check Errors

Summary AMD received a report from the security team at Amazon Web Services AWS indicating that it may be possible for guest VMs to cause a crash of a host system. By flooding the host system with a large number of malformed System Management Interrupts SMIs, it may be possible for a guest VM to...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003548)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003548 advisory. Race condition in the storeintwithrestart function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux kernel through 4.15.7 allows local users to cause a denial of...