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CVE-2025-39681 x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper

🗓️ 05 Sep 2025 17:20:47Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Add missing resctrl_cpu_detect call in Hygon BSP init to avoid boot division by zero with cache quality monitoring.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kernel/cpu/hygon.c"
    ],
    "versions": [
      {
        "version": "923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9",
        "lessThan": "62f12cde10118253348a7540e85606869bd69432",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9",
        "lessThan": "873f32201df8876bdb2563e3187e79149427cab4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9",
        "lessThan": "fb81222c1559f89bfe3aa1010f6d112531d55353",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9",
        "lessThan": "7207923d8453ebfb35667c1736169f2dd796772e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9",
        "lessThan": "a9e5924daa954c9f585c1ca00358afe71d6781c4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9",
        "lessThan": "d23264c257a70dbe021b43b3bc2ee16134cd2c69",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "923f3a2b48bdccb6a1d1f0dd48de03de7ad936d9",
        "lessThan": "d8df126349dad855cdfedd6bbf315bad2e901c2f",
        "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/hygon.c"
    ],
    "versions": [
      {
        "version": "5.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.242",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.190",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.149",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.103",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.44",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.4",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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