CVE-2019-11811: Use After Free

An issue was discovered in the Linux kernel before 5.0.4. There is a use-after-free upon attempted read access to /proc/ioports after the ipmisi module is removed, related to drivers/char/ipmi/ipmisiintf.c, drivers/char/ipmi/ipmisimemio.c, and drivers/char/ipmi/ipmisiportio.c...