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x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache Make sure resources are not improperly shared in the op cache and cause instruction corruption this way.

Announced Group revision 1
Original source ↗

CVE-2026-46174

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-46174

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
        "lessThan": "1e23b30a80b14e5764657401ee2cca030525ae8e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
        "lessThan": "f5bc3aef7df46eaaf423d7413ab8833f704ae576",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
        "lessThan": "251497955f2314cd39d43191e81c6151dead4c7b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
        "lessThan": "ff6fc65b3bf73acc5ee71919154d830ad5431362",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
        "lessThan": "9109489cc8c34e50d15575a3d1ff82af586bc1aa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
        "lessThan": "28f5ed477eef166d678d6966762cbc1de9b4f436",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
        "lessThan": "1cd85a19748b2407830376a5cbae5c0f126016e5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
        "lessThan": "c21b90f77687075115d989e53a8ec5e2bb427ab1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5abd1583e06b3963e5c9d915760367de86808b78",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4ba461d426490b6ed7e8298c4d3b7a13aa5d2686",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5a63725cd18fcee2af6ec46ccb856b64ad3077b4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3.16.58",
        "lessThan": "3.17",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.4.144",
        "lessThan": "4.5",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.9.102",
        "lessThan": "4.10",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "arch/x86/include/asm/msr-index.h",
      "arch/x86/kernel/cpu/amd.c",
      "tools/arch/x86/include/asm/msr-index.h"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.14"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.14",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.256",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.207",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.173",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.139",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.88",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.30",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.7",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "arch/x86/include/asm/msr-index.h",
      "arch/x86/kernel/cpu/amd.c",
      "tools/arch/x86/include/asm/msr-index.h"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-46174

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#40149 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-46174 · Revision 1Source updated