CVE-2022-50337

In the Linux kernel, the following vulnerability has been resolved: ocxl: fix pci device refcount leak when calling get_function_0() get_function_0() calls pci_get_domain_bus_and_slot(), as comment says, it returns a pci device with refcount increment, so after using it, pci_dev_put() needs be called. Get the device reference when get_function_0() is not called, so pci_dev_put() can be called in the error path and callers unconditionally. And add comment above get_dvsec_vendor0() to tell callers to call pci_dev_put().

• linux linux kernel (>= 5.9 < 5.10.163) • linux linux kernel (>= 5.11 < 5.15.86) • linux linux kernel (>= 5.16 < 6.0.16) • linux linux kernel (>= 6.1 < 6.1.2)