kernel: hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new()

A counting logic flaw exists in the Linux kernel. When cigetdomainbusandslot is called, it returns a pci device with refcount incremented. When finishing it, the caller must decrement the reference count by calling pcidevput, leading to the loss of confidentiality of the system...

PT-2023-33445 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v4.14.301 Description: The issue concerns a potential security vulnerability in the Linux Kernel. It involves a null check before removing sysfs attributes, specifically related to the coretemp module. The actua...