CVE-2026-68464mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 676a83855614635af3bf31ad3f8fec4031f81354 builds before 4f96903e2fd228aa96013372402d650f6dbe5cb3; 676a83855614635af3bf31ad3f8fec4031f81354 builds before 9bf4ee05a1109d889de9151ee78bd80293923f70; 676a83855614635af3bf31ad3f8fec4031f81354 builds before 9d87eaf985cef9581b6ed99b461b38e8cd666480 | CNA record |
References
- https://git.kernel.org/stable/c/4f96903e2fd228aa96013372402d650f6dbe5cb3
- https://git.kernel.org/stable/c/9bf4ee05a1109d889de9151ee78bd80293923f70
- https://git.kernel.org/stable/c/9d87eaf985cef9581b6ed99b461b38e8cd666480
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.