CVE-2024-56723: mfd: intel_soc_pmic_bxtwc: Use IRQ domain for PMIC devices
In the Linux kernel, the following vulnerability has been resolved:
mfd: intelsocpmicbxtwc: Use IRQ domain for PMIC devices
While design wise the idea of converting the driver to use the hierarchy of the IRQ chips is correct, the implementation has (inherited) flaws. This was unveiled when platformgetirq() had started WARN() on IRQ 0 that is supposed to be a Linux IRQ number (also known as vIRQ).
Rework the driver to respect IRQ domain when creating each MFD device separately, as the domain is not the same for all of them.
Other sources
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— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-56723?
CVE-2024-56723 has a medium severity level according to the Common Vulnerability Scoring System.
How do I fix CVE-2024-56723?
To mitigate CVE-2024-56723, update the Linux kernel to a version that addresses the identified flaws.
Which versions of Linux kernel are affected by CVE-2024-56723?
CVE-2024-56723 affects Linux kernel versions between 4.13 and 6.12.2.
What specific issue does CVE-2024-56723 address?
CVE-2024-56723 addresses flaws in the implementation of the IRQ domain for PMIC devices in the Linux kernel.
Is CVE-2024-56723 resolved in the latest Linux kernel?
Yes, CVE-2024-56723 has been resolved in the latest updates of the Linux kernel.