{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "810ac401db1fe432020d7936a199591000de8279"
            },
            {
              "fixed": "7e4f2702bbadbde887a5d8897297720a7f037ee5"
            },
            {
              "fixed": "0a47f0be6557b4a851addd430383a4dc7ee08752"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.15.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90273.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable\n\nIn the perf enable path, there are missing cases where\ncscfg_csdev_disable_active_config() is not called:\n\n  - Branch broadcast is selected but not supported by the hardware\n  - etm4_enable_hw() fails\n\nThis can lead to a leak of config_desc-\u003eactive_cnt.\nFix this by properly calling cscfg_csdev_disable_active_config()\nin these error paths.",
  "id": "CVE-2026-90273",
  "modified": "2026-09-19T03:30:38.661416377Z",
  "published": "2026-09-17T16:08:06.638Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90273.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90273"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable"
}