CVE-2023-53446 PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free

In the Linux kernel, the following vulnerability has been resolved: PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free Struct pcielinkstate-downstream is a pointer to the pcidev of function 0. Previously we retained that pointer when removing function 0, and subsequent ASPM...