Astra Linux – Vulnerability in Linux, Linux 5.15

When SMT is enabled, certain AMD processors may speculateively execute instructions using a target from the sibling thread after a SMT mode switch, which may potentially lead to information disclosure...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: A null pointer check should be added for getfirstactivedisplay. The function modhdcphdcp1enableencryption calls the function getfirstactivedisplay, but does not check its return value. The return value is a null...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: A memory leak was fixed in dmswfini. After destroying dmubsrv, the memory associated with it wasn’t freed, resulting in a memory leak: Unreferenced object: 0xffff896302b45800 size: 1024 - Contents: comm...

CVE-2026-98390

A flaw was found in the Linux kernel. When running in certain virtualized environments, an unexpected hardware topology reported by the hypervisor can cause the AMD node initialization logic to calculate a divisor of zero. This condition triggers an unhandled divide-by-zero error during system...

kernel-rt security update

An update is available for kernel-rt. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel-rt packages provide the Real Time Linux Kernel, which enables...

RLSA-2026:82806 Important: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: openvswitch: defer tunnel netdevput to RCU release CVE-2026-31678 kernel: ipv6: validate extension header length before copying to...

amd_hypervisor

amdhypervisor AMD Hypervisor written writh Rust. Features Easily define your own vmexit handlers MSR read/write Cpuid Rdtsc and all the other vmexits NPT Hooking Memory safe and blazingly fast 🚀 Example See driver/ for a reference implementation. Notes on how to write a kernel driver can be found...

POC_CVE-2025-29943_Write-what-where-Condition

StackWarp: PoC for CVE-2025-29943 Proof of concept for the StackWarp hardware vulnerability CVE-2025-29943 in AMD processors. This flaw allows an attacker with administrator privileges on a host hypervisor to manipulate the CPU pipeline configuration to corrupt the stack pointer within a SEV-SNP...

HITCON-2023-Demo-CVE-2023-20562

HITCON 2023 Demo CVE-2023-20562 Description This demonstration took place at HITCON 2023 in Taiwan. The demo highlights the exploitation of AMDCpuProfiler.sys within AMD μProf. By triggering an arbitrary write on the EPROCESS token, privilege escalation to SYSTEM level is achieved. Disabling the...

CVE-2023-31320

CVE-2023-31320 Proof of concept code for a denial of service vulnerability in the AMD display driver that corrupts the display. AMD security bulletin Demo This video contains flashing lights! https://github.com/whypet/CVE-2023-31320/assets/47226783/658776cb-6dbc-4a76-a671-fc1f4924b2a9 Building...

RockyLinux 8 : kernel (RLSA-2026:82807)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:82807 advisory. kernel: openvswitch: defer tunnel netdevput to RCU release CVE-2026-31678 kernel: ipv6: validate extension header length before copying to cmsg...

kernel: drm/amd/display: set new_stream to NULL after release

A flaw was found in the Linux kernel's drm/amd/display component. Specifically, within the dmupdatecrtcstate function, a stream pointer is released but not subsequently set to NULL. This can lead to a double release of the same pointer if an error occurs later in the process, creating a...

kernel: drm/amd/display: set new_stream to NULL after release

A flaw was found in the Linux kernel's drm/amd/display component. Specifically, within the dmupdatecrtcstate function, a stream pointer is released but not subsequently set to NULL. This can lead to a double release of the same pointer if an error occurs later in the process, creating a...

kernel security update

4.18.0-553.173.1 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

Ubuntu 26.04 LTS : Linux kernel vulnerabilities (USN-8887-1)

"The remote Ubuntu 26.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8887-1 advisory. It was discovered that some AMD processors did not properly perform Reverse Map Table RMP checks when the IOMMU accessed certain host buffers. A local...

Ubuntu 26.04 LTS : Linux kernel (Azure) vulnerabilities (USN-8888-1)

"The remote Ubuntu 26.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8888-1 advisory. It was discovered that some AMD processors did not properly perform Reverse Map Table RMP checks when the IOMMU accessed certain host buffers. A local...

Ubuntu 24.04 LTS : Linux kernel vulnerabilities (USN-8917-1)

"The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8917-1 advisory. It was discovered that some AMD processors did not properly perform Reverse Map Table RMP checks when the IOMMU accessed certain host buffers. A local...

Important: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: openvswitch: defer tunnel netdevput to RCU release CVE-2026-31678 kernel: ipv6: validate extension header length before copying to...

Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: openvswitch: defer tunnel netdevput to RCU release CVE-2026-31678 kernel: ipv6: validate extension header length before copying to cmsg CVE-2026-63920 kernel: drm/amd/display: set newstre...

RHEL 8 : kernel (RHSA-2026:82807)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:82807 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: openvswitch: defer tunnel...