Vulnerability-Lookup

FKIE_CVE-2026-68464

Vulnerability from fkie_nvd - Published: 2026-08-15 06:19 - Updated: 2026-08-17 06:17

Severity

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.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4f96903e2fd228aa96013372402d650f6dbe5cb3
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9bf4ee05a1109d889de9151ee78bd80293923f70
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9d87eaf985cef9581b6ed99b461b38e8cd666480

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/sdhci-esdhc-imx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4f96903e2fd228aa96013372402d650f6dbe5cb3",
              "status": "affected",
              "version": "676a83855614635af3bf31ad3f8fec4031f81354",
              "versionType": "git"
            },
            {
              "lessThan": "9bf4ee05a1109d889de9151ee78bd80293923f70",
              "status": "affected",
              "version": "676a83855614635af3bf31ad3f8fec4031f81354",
              "versionType": "git"
            },
            {
              "lessThan": "9d87eaf985cef9581b6ed99b461b38e8cd666480",
              "status": "affected",
              "version": "676a83855614635af3bf31ad3f8fec4031f81354",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/sdhci-esdhc-imx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-68464",
  "lastModified": "2026-08-17T06:17:55.720",
  "metrics": {},
  "published": "2026-08-15T06:19:25.430",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

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

Vulnerability from cvelistv5 – Published: 2026-08-15 05:51 – Updated: 2026-08-17 05:06

Title

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

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/4f96903e2fd228aa9…
https://git.kernel.org/stable/c/9bf4ee05a1109d889…
https://git.kernel.org/stable/c/9d87eaf985cef9581…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 676a83855614635af3bf31ad3f8fec4031f81354 , < 4f96903e2fd228aa96013372402d650f6dbe5cb3 (git) Affected: 676a83855614635af3bf31ad3f8fec4031f81354 , < 9bf4ee05a1109d889de9151ee78bd80293923f70 (git) Affected: 676a83855614635af3bf31ad3f8fec4031f81354 , < 9d87eaf985cef9581b6ed99b461b38e8cd666480 (git)
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)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/sdhci-esdhc-imx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4f96903e2fd228aa96013372402d650f6dbe5cb3",
              "status": "affected",
              "version": "676a83855614635af3bf31ad3f8fec4031f81354",
              "versionType": "git"
            },
            {
              "lessThan": "9bf4ee05a1109d889de9151ee78bd80293923f70",
              "status": "affected",
              "version": "676a83855614635af3bf31ad3f8fec4031f81354",
              "versionType": "git"
            },
            {
              "lessThan": "9d87eaf985cef9581b6ed99b461b38e8cd666480",
              "status": "affected",
              "version": "676a83855614635af3bf31ad3f8fec4031f81354",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/sdhci-esdhc-imx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:06:05.597Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4f96903e2fd228aa96013372402d650f6dbe5cb3"
        },
        {
          "url": "https://git.kernel.org/stable/c/9bf4ee05a1109d889de9151ee78bd80293923f70"
        },
        {
          "url": "https://git.kernel.org/stable/c/9d87eaf985cef9581b6ed99b461b38e8cd666480"
        }
      ],
      "title": "mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "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"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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FKIE_CVE-2026-68464

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

Tags

Sightings

Nomenclature