CVE-2025-40076

Related CVE by CWE

No closely related CVE found.

Risk snapshot

EPSS: n/a   |   KEV: not listed

Related CVE by CWE

No related CWE found.

Top CVE for Vendor

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Recently Exploited Similar Vulnerabilities

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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]

🧠 Explainer: What this vulnerability means

Summary: The issue in the product by the vendor (CWE: unspecified) may enable attacks.

Impact: Attackers could gain unauthorized access, execute code, or disrupt services.

Mitigation: Until patched, restrict exposure, enforce least privilege, and monitor for suspicious activity.