stop-zenbleed-win

在 Windows 上阻止 Zenbleed（CVE-2023-20593） 新发现的 Zenbleed 漏洞（CVE-2023-20593）影响所有 AMD Zen2 处理器。 不幸的是，AMD 要到 2023 年 11 月或 12 月才会为其许多处理器提供微码更新。 在此期间如何保持安全？ 幸运的是，存在一种软件规避方案。 虽然在 Linux 上应用软件规避方案只需一行命令，但在 Windows 上情况更为复杂。 要应用软件规避方案，需要在 MSR CPU 寄存器中设置一个特定的位（chicken bit DECFG9）。 正如 Travis Ormandy 指出的，以下命令可用于在...

USN-8620-3: Linux kernel (Intel IoTG) vulnerabilities

Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when mounted and operated on, could expose...

USN-8620-1: Linux kernel vulnerabilities

Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when mounted and operated on, could expose...

USN-8593-1 linux-ibm, linux-oracle vulnerabilities

It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. CVE-2025-54518 Several security issues...

CVE-2026-46174

A flaw was found in the Linux kernel, specifically within the x86/CPU/AMD Zen2's op cache. This vulnerability arises from improper isolation of shared resources, which can lead to instruction corruption. The consequence of this flaw is that it may cause unexpected behavior or instability within t...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP4 kernel was updated to fix various security issues The following security issues were fixed: CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache bsc1264013. CVE-2026-46300: net: skbuff: propagate shared-frag marker through...

SUSE-SU-2026:1899-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache bsc1264013. - CVE-2026-46300: net: skbuff: propagate shared-frag marker...

SUSE-SU-2026:21800-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache bsc1264013. - CVE-2026-46300: net: skbuff: propagate shared-frag marker throu...

SUSE-SU-2026:21673-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache bsc1264013. - CVE-2026-46300: net: skbuff: propagate...

UBUNTU-CVE-2025-38518

In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Disable INVLPGB on Zen2 AMD Cyan Skillfish Family 17h, Model 47h, Stepping 0h has an issue that causes system oopses and panics when performing TLB flush using INVLPGB. However, the problem is that that machine has...

x86/AMD: Zenbleed

ISSUE DESCRIPTION Researchers at Google have discovered Zenbleed, a hardware bug causing corruption of the vector registers. When a VZEROUPPER instruction is discarded as part of a bad transient execution path, its effect on internal tracking are not unwound correctly. This manifests as the wrong...