CVE-2026-31655: pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled
Published Apr 24, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
pmdomain: imx8mp-blk-ctrl: Keep the NOCHDCP clock enabled
Keep the NOCHDCP clock always enabled to fix the potential hang caused by the NoC ADB400 port power down handshake.
Affected Software
14 affected componentsFixes available
Linux Linux kernel (imx8mp-blk-ctrl pmdomain driver)
Linux Linux kernel>=6.1.1<6.6.135
Linux Linux kernel>=6.7<6.12.82
Linux Linux kernel>=6.13<6.18.23
Linux Linux kernel>=6.19<6.19.13
Linux Linux kernel=6.1
Linux Linux kernel=7.0-rc1
Linux Linux kernel=7.0-rc2
Linux Linux kernel=7.0-rc3
Linux Linux kernel=7.0-rc4
Linux Linux kernel=7.0-rc5
Linux Linux kernel=7.0-rc6
Linux Linux kernel=7.0-rc7
Microsoft azl3 kernel 6.6.134.1-2
Remediation
Event History
Apr 24, 2026
CVE Published
via MITRE·02:45 PM
Data Sourced
via MITRE·02:45 PM
Description
Data Sourced
via NVD·03:16 PM
RemedyDescriptionSeverityAffected Software
Apr 26, 2026
Data Sourced
via Microsoft·08:08 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:08 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2026-31655?
CVE-2026-31655 has a medium severity level due to its potential to cause a system hang.
2
How do I fix CVE-2026-31655?
To address CVE-2026-31655, ensure that the NOC_HDCP clock is always enabled in the Linux kernel.
3
What systems are affected by CVE-2026-31655?
CVE-2026-31655 affects Linux kernel versions from 6.1.1 up to and including 7.0-rc7.
4
What component is associated with CVE-2026-31655?
CVE-2026-31655 is associated with the imx8mp-blk-ctrl pmdomain driver in the Linux kernel.
5
Is there a patch available for CVE-2026-31655?
Yes, a patch has been released for CVE-2026-31655 that resolves the issue by keeping the NOC_HDCP clock enabled.