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CVE-2026-90273

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable

In the perf enable path, there are missing cases where cscfg_csdev_disable_active_config() is not called:

This can lead to a leak of config_desc->active_cnt. Fix this by properly calling cscfg_csdev_disable_active_config() in these error paths.

Detalles técnicos trazas, registros y código del informe original
  - Branch broadcast is selected but not supported by the hardware
  - etm4_enable_hw() fails

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-90273",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "810ac401db1fe432020d7936a199591000de8279",
              "lessThan": "7e4f2702bbadbde887a5d8897297720a7f037ee5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "810ac401db1fe432020d7936a199591000de8279",
              "lessThan": "0a47f0be6557b4a851addd430383a4dc7ee08752",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/hwtracing/coresight/coresight-etm4x-core.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.15",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/hwtracing/coresight/coresight-etm4x-core.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:23.883",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "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->active_cnt.\nFix this by properly calling cscfg_csdev_disable_active_config()\nin these error paths."
    }
  ],
  "lastModified": "2026-09-17T17:17:23.883",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}