GSD-2022-1006190 ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead

ftrace: Fix NULL pointer dereference in isftracetrampoline when ftrace is dead This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.292 by comm...