A vulnerability was found in Kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, Use-after-free arises because it had been freed by gprinter_free().
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 2122392]
This was fixed for Fedora with the 5.8.17 stable kernel updates.