{
  "cveId": "CVE-2026-80623",
  "url": "https://patchblox.com/security/cve/CVE-2026-80623",
  "summary": "CVE-2026-80623 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-80623, released August 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "coresight: ete: Always save state on power down",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  coresight: ete: Always save state on power down  System register ETMs and ETE are unlikely to be preserved on CPU power down. The ETE DT binding also never documented \u0022arm,coresight-loses-context-with-cpu\u0022 so nobody would have legitimately been able to use that binding to fix it and ACPI has no such binding at all.  Fix it by hard coding the setting for sysreg ETMs (ETE is always sysreg) or ACPI boots. Use a local variable when setting up save_state so that it\u0027s immune to concurrent probing when devices have different configurations which is an issue with modifying the global.  This fixes the following error when using Coresight with ACPI on the FVP which supports CPU PM:    coresight ete0: External agent took claim tag   WARNING: drivers/hwtracing/coresight/coresight-core.c:248 at coresight_disclaim_device_unlocked\u002B0xe0/0xe8, CPU#0: perf/117",
  "published": "2026-08-28T08:16:46Z",
  "severity": "Low",
  "cvss": 2.5,
  "epss": 0.00215,
  "epssPercentile": 0.119,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80623",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-80623",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80623",
      "released": "2026-08-29T00:46:20Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.5-1",
      "fix": "DEBIAN-CVE-2026-80623",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80623",
      "released": "2026-08-29T00:46:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}