Cloudanix VulnDB

CVE-2025-40076

None

CVSS

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EPSS

0.2%

Published

Oct 28, 2025

CISA due date

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The record

In the Linux kernel, the following vulnerability has been resolved: PCI: rcar-host: Pass proper IRQ domain to generic_handle_domain_irq() Starting with commit dd26c1a23fd5 ("PCI: rcar-host: Switch to msi_create_parent_irq_domain()"), the MSI parent IRQ domain is NULL because the object of type struct irq_domain_info passed to: msi_create_parent_irq_domain() -> irq_domain_instantiate()() -> __irq_domain_instantiate() has no reference to the parent IRQ domain. Using msi->domain->parent as an argument for generic_handle_domain_irq() leads to below error: "Unable to handle kernel NULL pointer dereference at virtual address" This error was identified while switching the upcoming RZ/G3S PCIe host controller driver to msi_create_parent_irq_domain() (which was using a similar pattern to handle MSIs (see link section)), but it was not tested on hardware using the pcie-rcar-host controller driver due to lack of hardware. [mani: reworded subject and description]

Affected packages

Ecosystem Package Introduced Fixed
Linux Kernel 6.17.0 6.17.3
openSUSE:Tumbleweed kernel-source 0 6.17.7-1.1
openSUSE:Tumbleweed kernel-source-longterm 0 6.18.16-1.1

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