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CVE-2026-68464

Estado: RecibidaSin puntuar—

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

mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt

When using WIFI out-of-band wakeup, an "irq xxx: nobody cared" warning occurs. This happens because the usdhc interrupt is not disabled during system suspend when device_may_wakeup() returns false.

The sequence of events leading to this issue: 1. System enters suspend without disabling usdhc interrupt (because device_may_wakeup() returns false for usdhc device) 2. WIFI out-of-band wakeup triggers system resume via GPIO interrupt 3. WIFI sends a Card interrupt before usdhc has fully resumed 4. usdhc is still in runtime suspend state and cannot handle the interrupt properly 5. The unhandled interrupt triggers "nobody cared" warning

Leer descripción completaMostrar menos

Fix this by unconditionally disabling the usdhc interrupt during suspend and re-enabling it during resume, regardless of the wakeup capability. This ensures no interrupts are processed during the suspend/resume transition.

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-2026-68464",
  "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": "676a83855614635af3bf31ad3f8fec4031f81354",
              "lessThan": "4f96903e2fd228aa96013372402d650f6dbe5cb3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "676a83855614635af3bf31ad3f8fec4031f81354",
              "lessThan": "9bf4ee05a1109d889de9151ee78bd80293923f70",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "676a83855614635af3bf31ad3f8fec4031f81354",
              "lessThan": "9d87eaf985cef9581b6ed99b461b38e8cd666480",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/mmc/host/sdhci-esdhc-imx.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.16",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/mmc/host/sdhci-esdhc-imx.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:19:25.430",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4f96903e2fd228aa96013372402d650f6dbe5cb3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9bf4ee05a1109d889de9151ee78bd80293923f70",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9d87eaf985cef9581b6ed99b461b38e8cd666480",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt\n\nWhen using WIFI out-of-band wakeup, an \"irq xxx: nobody cared\" warning\noccurs. This happens because the usdhc interrupt is not disabled during\nsystem suspend when device_may_wakeup() returns false.\n\nThe sequence of events leading to this issue:\n1. System enters suspend without disabling usdhc interrupt\n(because device_may_wakeup() returns false for usdhc device)\n2. WIFI out-of-band wakeup triggers system resume via GPIO interrupt\n3. WIFI sends a Card interrupt before usdhc has fully resumed\n4. usdhc is still in runtime suspend state and cannot handle the\ninterrupt properly\n5. The unhandled interrupt triggers \"nobody cared\" warning\n\nFix this by unconditionally disabling the usdhc interrupt during suspend\nand re-enabling it during resume, regardless of the wakeup capability.\nThis ensures no interrupts are processed during the suspend/resume\ntransition."
    }
  ],
  "lastModified": "2026-08-17T06:17:55.720",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}