CVE-2026-68464

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68464", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.396Z", "datePublished": "2026-08-15T05:51:23.578Z", "dateUpdated": "2026-08-17T05:06:05.597Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:06:05.597Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mmc/host/sdhci-esdhc-imx.c"], "versions": [{"version": "676a83855614635af3bf31ad3f8fec4031f81354", "lessThan": "4f96903e2fd228aa96013372402d650f6dbe5cb3", "status": "affected", "versionType": "git"}, {"version": "676a83855614635af3bf31ad3f8fec4031f81354", "lessThan": "9bf4ee05a1109d889de9151ee78bd80293923f70", "status": "affected", "versionType": "git"}, {"version": "676a83855614635af3bf31ad3f8fec4031f81354", "lessThan": "9d87eaf985cef9581b6ed99b461b38e8cd666480", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mmc/host/sdhci-esdhc-imx.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.2"}]}]}], "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"}}}}

{}

{"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"}

{"bugzilla": {"description": "kernel: mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt", "id": "2516382", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516382"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-413", "details": ["A flaw was found in the Linux kernel's sdhci-esdhc-imx driver. When the system enters suspend mode without disabling the usdhc interrupt, and a Wi-Fi out-of-band wakeup triggers a system resume, a card interrupt can be sent before the usdhc driver has fully resumed. This can result in an unhandled interrupt, leading to system instability or a denial of service."], "name": "CVE-2026-68464", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68464\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68464\nhttps://lore.kernel.org/linux-cve-announce/2026081503-CVE-2026-68464-a396@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[676a83855614635af3bf31ad3f8fec4031f81354,4f96903e2fd228aa96013372402d650f6dbe5cb3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[676a83855614635af3bf31ad3f8fec4031f81354,9bf4ee05a1109d889de9151ee78bd80293923f70)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[676a83855614635af3bf31ad3f8fec4031f81354,9d87eaf985cef9581b6ed99b461b38e8cd666480)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc4,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T08:15:04.237503+00:00", "title": "Unhandled SDHCI Interrupt during Suspend Leads to System Instability", "updated": "2026-08-18T01:30:05.445924+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-362", "CWE-413"]}