CVE-2024-56682 Information

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.

Reference

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