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CVE-2026-90304

Estado: RecibidaSin puntuar—

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

ARM: 9484/1: enable interrupts when unhandled user faults are triggered

PREEMPT_RT requires interrupts to be enabled when sending signals.

When do_DataAbort()/do_PrefetchAbort() triggers unhandled user faults, that is `inf->fn()` return a non-zero value, and the interrupts are not enabled within the hook function, force_sig_fault() will be called with interrupts disabled.

This can be triggered by user programs executing the bkpt instruction, with kernel config CONFIG_PERF_EVENTS=n.

Enable interrupts in do_DataAbort()/do_PrefetchAbort() when unhandled user faults are triggered to fix the issue.

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)

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{
  "id": "CVE-2026-90304",
  "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": "c6e61c06d6061750597e79c598acb5dead44c35b",
              "lessThan": "8d7cbc6df9632d334b21c4be66ccdde76a08fb13",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c6e61c06d6061750597e79c598acb5dead44c35b",
              "lessThan": "e79ca91165d4fd18549c536abdb86101e889052f",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "arch/arm/mm/fault.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "7.1",
              "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": [
            "arch/arm/mm/fault.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:28.050",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/8d7cbc6df9632d334b21c4be66ccdde76a08fb13",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e79ca91165d4fd18549c536abdb86101e889052f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9484/1: enable interrupts when unhandled user faults are triggered\n\nPREEMPT_RT requires interrupts to be enabled when sending signals.\n\nWhen do_DataAbort()/do_PrefetchAbort() triggers unhandled user faults,\nthat is `inf->fn()` return a non-zero value, and the interrupts are not\nenabled within the hook function, force_sig_fault() will be called\nwith interrupts disabled.\n\nThis can be triggered by user programs executing the bkpt instruction,\nwith kernel config CONFIG_PERF_EVENTS=n.\n\nEnable interrupts in do_DataAbort()/do_PrefetchAbort() when unhandled\nuser faults are triggered to fix the issue."
    }
  ],
  "lastModified": "2026-09-17T17:17:28.050",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}