/proc/loadavg manipulation by monkey-patching `loadavg_proc_show` function https://github.com/torvalds/linux/blob/master/fs/proc/loadavg.c

main.c

#include <linux/seq_file.h>
KHOOK_EXT(int, loadavg_proc_show, struct seq_file *, void *v);
static int khook_loadavg_proc_show(struct seq_file *m, void *v)
{
	unsigned int random_number;
	unsigned char rands[sizeof(unsigned int)];
	get_random_bytes(rands, sizeof(unsigned int));
	random_number = *(unsigned int*)rands;
	random_number = (random_number % 6) + 14;
	seq_printf(m, "0.%d 0.16 0.11 1/127 10420\n", random_number);
	return 0;
}