In the Linux kernel, the following vulnerability has been resolved: mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt When… (CVE-2026-68464)
A vulnerability in the Linux kernel's mmc sdhci-esdhc-imx driver caused unhandled interrupt warnings during system suspend and resume when WIFI out-of-band wakeup is used. The issue arises because the usdhc interrupt is not disabled during suspend if the device is not allowed to wake the system, leading to interrupts being received before the device fully resumes. This has been fixed by unconditionally disabling the interrupt during suspend and re-enabling it during resume.
AI Analysis
Technical Summary
The Linux kernel's mmc sdhci-esdhc-imx driver had a flaw where the usdhc interrupt was not disabled during system suspend if device_may_wakeup() returned false. This caused unhandled interrupt warnings when WIFI out-of-band wakeup triggered a resume and a Card interrupt was sent before the usdhc device fully resumed. The fix involves unconditionally disabling the usdhc interrupt during suspend and re-enabling it during resume to prevent interrupts during the suspend/resume transition.
Potential Impact
The vulnerability causes unhandled interrupt warnings during system suspend and resume cycles involving WIFI out-of-band wakeup. It does not indicate a direct security compromise or exploit but may affect system stability or logging due to unhandled interrupts.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to unconditionally disable the usdhc interrupt during suspend and re-enable it during resume. Users should apply the updated kernel version containing this fix. Patch status is not explicitly stated; check the vendor or kernel mailing lists for the specific patch or updated kernel release containing this correction.
In the Linux kernel, the following vulnerability has been resolved: mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt When… (CVE-2026-68464)
Description
A vulnerability in the Linux kernel's mmc sdhci-esdhc-imx driver caused unhandled interrupt warnings during system suspend and resume when WIFI out-of-band wakeup is used. The issue arises because the usdhc interrupt is not disabled during suspend if the device is not allowed to wake the system, leading to interrupts being received before the device fully resumes. This has been fixed by unconditionally disabling the interrupt during suspend and re-enabling it during resume.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's mmc sdhci-esdhc-imx driver had a flaw where the usdhc interrupt was not disabled during system suspend if device_may_wakeup() returned false. This caused unhandled interrupt warnings when WIFI out-of-band wakeup triggered a resume and a Card interrupt was sent before the usdhc device fully resumed. The fix involves unconditionally disabling the usdhc interrupt during suspend and re-enabling it during resume to prevent interrupts during the suspend/resume transition.
Potential Impact
The vulnerability causes unhandled interrupt warnings during system suspend and resume cycles involving WIFI out-of-band wakeup. It does not indicate a direct security compromise or exploit but may affect system stability or logging due to unhandled interrupts.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to unconditionally disable the usdhc interrupt during suspend and re-enable it during resume. Users should apply the updated kernel version containing this fix. Patch status is not explicitly stated; check the vendor or kernel mailing lists for the specific patch or updated kernel release containing this correction.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-r869-x47v-qcm4
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-68464"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a808b79bf8831d539502b13
Added to database: 08/15/2026, 15:53:29 UTC
Last enriched: 08/15/2026, 17:12:25 UTC
Last updated: 08/16/2026, 00:41:15 UTC
Views: 6
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