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CVE-2026-68464
mmc: sdhci-esdhc-imx: disable irq during suspend to fix unhandled interrupt
Overview
Description

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.

Details
INFO

Published Date :

Aug. 15, 2026, 6:19 a.m.

Last Modified :

Aug. 17, 2026, 6:17 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-68464 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Disable the SDHCI interrupt during suspend and re-enable on resume.
  • Disable SDHCI interrupt during suspend.
  • Re-enable SDHCI interrupt during resume.
  • Apply kernel updates that include this fix.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-68464.

URL Resource
https://git.kernel.org/stable/c/4f96903e2fd228aa96013372402d650f6dbe5cb3
https://git.kernel.org/stable/c/9bf4ee05a1109d889de9151ee78bd80293923f70
https://git.kernel.org/stable/c/9d87eaf985cef9581b6ed99b461b38e8cd666480
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-68464 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-68464 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-68464 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-68464 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 17, 2026

    Action Type Old Value New Value
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '676a83855614635af3bf31ad3f8fec4031f81354', 'lessThan': '4f96903e2fd228aa96013372402d650f6dbe5cb3', 'versionType': 'git'}, {'status': 'affected', 'version': '676a83855614635af3bf31ad3f8fec4031f81354', 'lessThan': '9bf4ee05a1109d889de9151ee78bd80293923f70', 'versionType': 'git'}, {'status': 'affected', 'version': '676a83855614635af3bf31ad3f8fec4031f81354', 'lessThan': '9d87eaf985cef9581b6ed99b461b38e8cd666480', 'versionType': 'git'}], 'programFiles': ['drivers/mmc/host/sdhci-esdhc-imx.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/mmc/host/sdhci-esdhc-imx.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '676a83855614635af3bf31ad3f8fec4031f81354', 'lessThan': '4f96903e2fd228aa96013372402d650f6dbe5cb3', 'versionType': 'git'}, {'status': 'affected', 'version': '676a83855614635af3bf31ad3f8fec4031f81354', 'lessThan': '9bf4ee05a1109d889de9151ee78bd80293923f70', 'versionType': 'git'}, {'status': 'affected', 'version': '676a83855614635af3bf31ad3f8fec4031f81354', 'lessThan': '9d87eaf985cef9581b6ed99b461b38e8cd666480', 'versionType': 'git'}], 'programFiles': ['drivers/mmc/host/sdhci-esdhc-imx.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/mmc/host/sdhci-esdhc-imx.c'], 'defaultStatus': 'affected'}]
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 15, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '676a83855614635af3bf31ad3f8fec4031f81354', 'lessThan': '4f96903e2fd228aa96013372402d650f6dbe5cb3', 'versionType': 'git'}, {'status': 'affected', 'version': '676a83855614635af3bf31ad3f8fec4031f81354', 'lessThan': '9bf4ee05a1109d889de9151ee78bd80293923f70', 'versionType': 'git'}, {'status': 'affected', 'version': '676a83855614635af3bf31ad3f8fec4031f81354', 'lessThan': '9d87eaf985cef9581b6ed99b461b38e8cd666480', 'versionType': 'git'}], 'programFiles': ['drivers/mmc/host/sdhci-esdhc-imx.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/mmc/host/sdhci-esdhc-imx.c'], 'defaultStatus': 'affected'}]
    Added Description 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.
    Added Reference https://git.kernel.org/stable/c/4f96903e2fd228aa96013372402d650f6dbe5cb3
    Added Reference https://git.kernel.org/stable/c/9bf4ee05a1109d889de9151ee78bd80293923f70
    Added Reference https://git.kernel.org/stable/c/9d87eaf985cef9581b6ed99b461b38e8cd666480
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
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