CVE-2024-56691 mfd: intel_soc_pmic_bxtwc: Use IRQ domain for USB Type-C device

What is CVE-2024-56691?

CVE-2024-56691 is a medium-severity vulnerability in Linux kernel, published on 28 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

mfd: intel_soc_pmic_bxtwc: Use IRQ domain for USB Type-C 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 platform_get_irq() 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.

Which versions are affected by CVE-2024-56691?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-56691?

Apply the vendor's patch.

Is CVE-2024-56691 being exploited?

There is no known exploitation of CVE-2024-56691 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-56691, DEBIAN-CVE-2024-56691, GHSA-mxg2-8rwh-rmf4, UBUNTU-CVE-2024-56691.