CVE-2026-64477 x86,fs/resctrl: Prevent out-of-bounds access while offlining CPU when SNC enabled

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kernel/cpu/resctrl/monitor.c",
      "fs/resctrl/monitor.c"
    ],
    "versions": [
      {
        "version": "e13db55b5a0d447dea63cde772c1078405bbbf96",
        "lessThan": "ebc300b7ee0c669fa76a7a8858298ff32e296103",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e13db55b5a0d447dea63cde772c1078405bbbf96",
        "lessThan": "be1567992417dc92133e74126de7a6066c825ac9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e13db55b5a0d447dea63cde772c1078405bbbf96",
        "lessThan": "58c5ec23b1a238eb75cb0aba6f69d8f9e68ef0b2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e13db55b5a0d447dea63cde772c1078405bbbf96",
        "lessThan": "fc16126cc11d9f507130bf84ab137ee0938c900e",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kernel/cpu/resctrl/monitor.c",
      "fs/resctrl/monitor.c"
    ],
    "versions": [
      {
        "version": "6.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]