CVE-2024-56682 irqchip/riscv-aplic: Prevent crash when MSI domain is missing

What is CVE-2024-56682?

CVE-2024-56682 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:

irqchip/riscv-aplic: Prevent crash when MSI domain is missing

If the APLIC driver is probed before the IMSIC driver, the parent MSI domain will be missing, which causes a NULL pointer dereference in msi_create_device_irq_domain().

Avoid this by deferring probe until the parent MSI domain is available. Use dev_err_probe() to avoid printing an error message when returning -EPROBE_DEFER.

Weakness: CWE-476

Which versions are affected by CVE-2024-56682?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-56682?

Apply the vendor's patch.

Is CVE-2024-56682 being exploited?

There is no known exploitation of CVE-2024-56682 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-2024-56682, DEBIAN-CVE-2024-56682, GHSA-f25m-f79x-gq3f, UBUNTU-CVE-2024-56682.