CVE-2024-35836

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> dpll: fix pin dump crash for rebound module<br /> <br /> When a kernel module is unbound but the pin resources were not entirely<br /> freed (other kernel module instance of the same PCI device have had kept<br /> the reference to that pin), and kernel module is again bound, the pin<br /> properties would not be updated (the properties are only assigned when<br /> memory for the pin is allocated), prop pointer still points to the<br /> kernel module memory of the kernel module which was deallocated on the<br /> unbind.<br /> <br /> If the pin dump is invoked in this state, the result is a kernel crash.<br /> Prevent the crash by storing persistent pin properties in dpll subsystem,<br /> copy the content from the kernel module when pin is allocated, instead of<br /> using memory of the kernel module.