Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fixed FPDSS on Zen1 The hardware divider of Zen1 can, under certain circumstances, leave partial results from previous operations. These results can be leaked by another attacker’s thread. This issue has been fixed using...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099960)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099960 advisory. In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partia...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues were fixed: CVE-2023-2058: x86/CPU: Fix FPDSS on Zen1 bsc1243603. CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache bsc1264013...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2026-50262)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50262 advisory. - xfrm: esp: avoid in-place decrypt on shared skb frags Kuan-Ting Chen Orabug: 39344527 CVE-2026-43284 - x86/CPU/AMD: Add a fix for AMD-SB-7052...

Unbreakable Enterprise kernel security update

5.4.17-2136.355.3.1 - xfrm: esp: avoid in-place decrypt on shared skb frags Kuan-Ting Chen Orabug: 39344527 CVE-2026-43284 - x86/CPU/AMD: Add a fix for AMD-SB-7052 Prathyushi Nangia Orabug: 39344576 CVE-2025-54518 5.4.17-2136.355.3 - crypto: algifaead - Fix minimum RX size check for decryption...

x86/CPU: Fix FPDSS on Zen1

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CVE-2026-31628

A flaw was found in the Linux kernel. On systems utilizing Zen1 processors, the hardware divider can, under specific conditions, retain partial results from prior operations. A local attacker can exploit this vulnerability to access these residual results, leading to information disclosure...

DEBIAN-CVE-2026-31628

In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partial results from previous operations. Those results can be leaked by another, attacker thread. Fix that with a chicken bit...

AZL-83831 CVE-2026-31628 affecting package kernel for versions less than 6.6.137.1-1

In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partial results from previous operations. Those results can be leaked by another, attacker thread. Fix that with a chicken bit...

CVE-2026-31628

In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partial results from previous operations. Those results can be leaked by another, attacker thread. Fix that with a chicken bit...

CVE-2026-31628 x86/CPU: Fix FPDSS on Zen1

In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partial results from previous operations. Those results can be leaked by another, attacker thread. Fix that with a chicken bit...

CVE-2026-31628

In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partial results from previous operations. Those results can be leaked by another, attacker thread. Fix that with a chicken bit...

EUVD-2026-25521

In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partial results from previous operations. Those results can be leaked by another, attacker thread. Fix that with a chicken bit...

CVE-2026-31628: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: x86/CPU: Fix FPDSS on Zen1 Zen1's hardware divider can leave, under certain circumstances, partial results from previous operations. Those results can be leaked by another, attacker thread. Fix that with a chicken bit...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the Zen1 hardware divider potentially leaking some results of previous operations under certain...

x86: Floating Point Divider State Sampling

ISSUE DESCRIPTION Researchers from the CISPA Helmholtz Center for Information Security have discovered Floating Point Divider State Sampling. It is detailed in a paper titled "TREVEX: A Black-Box Detection Framework For Data-Flow Transient Execution Vulnerabilities" For more information, see:...

PT-2026-34980

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description On Zen1 processors, the hardware divider may retain partial results from previous operations under certain conditions. This behavior allows another attacker-controlled thread to leak the...

x86/AMD: Divide speculative information leak

ISSUE DESCRIPTION In the Zen1 microarchitecure, there is one divider in the pipeline which services uops from both threads. In the case of DE, the latched result from the previous DIV to execute will be forwarded speculatively. This is a covert channel that allows two threads to communicate witho...

PT-2023-4327

Name of the Vulnerable Software and Affected Versions AMD processors affected versions not specified Description A division-by-zero error on some AMD processors can potentially return speculative data, resulting in loss of confidentiality. The vulnerability is related to the handling of exception...

x86: Cross-Thread Return Address Predictions

ISSUE DESCRIPTION It has been discovered that on some AMD CPUs, the RAS Return Address Stack, also called RAP - Return Address Predictor - in some AMD documentation, and RSB - Return Stack Buffer - in Intel terminology is dynamically partitioned between non-idle threads. This allows an attacker t...