CVE-2024-56724: mfd: intel_soc_pmic_bxtwc: Use IRQ domain for TMU device
In the Linux kernel, the following vulnerability has been resolved:
mfd: intelsocpmicbxtwc: Use IRQ domain for TMU device
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-2024-56724?
CVE-2024-56724 is classified as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2024-56724?
To address CVE-2024-56724, upgrade to a patched version of the Linux kernel that resolves the vulnerability.
What are the affected versions of the Linux kernel for CVE-2024-56724?
CVE-2024-56724 affects Linux kernel versions from 4.10 up to and including 6.12.2.
What kind of vulnerability is CVE-2024-56724?
CVE-2024-56724 is a vulnerability related to the IRQ domain implementation in the Intel SoC PMIC driver.
Is there a public reference for CVE-2024-56724?
Yes, details for CVE-2024-56724 can be found in the Linux kernel git repository commits.