What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-28 · updated 2026-06-17
• Weakness: CWE-476

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.

Affected products

• Linux kernel: from 6.10 before 6.12.2 — fixed in 6.12.2

How to fix

Upgrade to a fixed version: Linux kernel 6.12.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1f181d1cda56c2fbe379c5ace1aa1fac6306669e
• https://git.kernel.org/stable/c/285a07810ab3bcedc2bd380ebacbf6b4942a889a

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