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CVE-2026-68464 (GCVE-0-2026-68464)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:51 – Updated: 2026-08-17 05:06
VLAI
Title
mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt
Summary
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 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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 676a83855614635af3bf31ad3f8fec4031f81354 , < 4f96903e2fd228aa96013372402d650f6dbe5cb3 (git)
Affected: 676a83855614635af3bf31ad3f8fec4031f81354 , < 9bf4ee05a1109d889de9151ee78bd80293923f70 (git)
Affected: 676a83855614635af3bf31ad3f8fec4031f81354 , < 9d87eaf985cef9581b6ed99b461b38e8cd666480 (git)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/mmc/host/sdhci-esdhc-imx.c"
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          "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:06:05.597Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/4f96903e2fd228aa96013372402d650f6dbe5cb3"
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          "url": "https://git.kernel.org/stable/c/9bf4ee05a1109d889de9151ee78bd80293923f70"
        },
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          "url": "https://git.kernel.org/stable/c/9d87eaf985cef9581b6ed99b461b38e8cd666480"
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      ],
      "title": "mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68464",
    "datePublished": "2026-08-15T05:51:23.578Z",
    "dateReserved": "2026-07-30T09:28:09.396Z",
    "dateUpdated": "2026-08-17T05:06:05.597Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-17T15:00:19+00:00",
      "cve": "CVE-2026-68464",
      "id": "CVE-2026-68464",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "76",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68464.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.