CVE-2026-72295: LoongArch: KVM: Validate irqchip index in irqfd routing
In the Linux kernel, the following vulnerability has been resolved:
LoongArch: KVM: Validate irqchip index in irqfd routing
Sashiko reported that the irqchip index is not validated for LoongArch. Add validation and reject out-of-range irqchip indexes to avoid indexing past the routing table's chip array.
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
Apply the fix for “LoongArch: KVM: Validate irqchip index in irqfd routing” so the irqchip index is validated and rejected when out-of-range, preventing access past the routing table’s chip array.
Linux kernel (LoongArch KVM irqfd routing) IRQFD routing: validate irqchip index before indexing chip array = Enabled