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CVE-2026-90121

Estado: RecibidaSin puntuar—

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

irqchip/gic-v5: Clear per-CPU IRS data on teardown

IRS affinity setup publishes an IRS pointer and IAFFID state in the per-CPU data before the remaining IRS initialization can fail. The error path then frees the IRS data without clearing that published state, leaving CPUs associated with freed memory.

On initialization failure and normal IRS teardown, clear the per-CPU IRS association by removing the stale pointer to irs_data. Also invalidate the per-CPU IAFFID state for any CPUs that were tied to the IRS before it was freed.

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-2026-90121",
  "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": "5cb1b6dab2def316671ea2565291a86ad58b884c",
              "lessThan": "54937af6f4a0d44c2852a203d457902f3264c906",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5cb1b6dab2def316671ea2565291a86ad58b884c",
              "lessThan": "3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/irqchip/irq-gic-v5-irs.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.17",
              "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/irqchip/irq-gic-v5-irs.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:04.310",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/54937af6f4a0d44c2852a203d457902f3264c906",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v5: Clear per-CPU IRS data on teardown\n\nIRS affinity setup publishes an IRS pointer and IAFFID state in the\nper-CPU data before the remaining IRS initialization can fail. The\nerror path then frees the IRS data without clearing that published\nstate, leaving CPUs associated with freed memory.\n\nOn initialization failure and normal IRS teardown, clear the per-CPU\nIRS association by removing the stale pointer to irs_data. Also\ninvalidate the per-CPU IAFFID state for any CPUs that were tied to the\nIRS before it was freed."
    }
  ],
  "lastModified": "2026-09-17T17:17:04.310",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}