CVE-2023-53647

The CVE-2023-53647 issue in the Linux kernel arises from an ACPI namespace traversal in the Hyper-V VMBus driver (hv_vmbus). If Hyper-V MMIO ranges cannot be found, the code may dereference the ACPI namespace root object (which has an all-ones handle), causing a NULL pointer dereference and an oo...

CVE-2023-53647 Drivers: hv: vmbus: Don't dereference ACPI root object handle

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Don't dereference ACPI root object handle Since the commit referenced in the Fixes: tag below the VMBus client driver is walking the ACPI namespace up from the VMBus ACPI device to the ACPI namespace root obje...