>The module's name is a relative path, priocntl will search the module file
>in only /kernel/sched and /usr/kernel/sched/ dirs.
>but unfortunately, priocntl() never check '../' in pc_clname arg
>we can use '../../../tmp/module' to make priocntl() load a module from anywhere

The "pc_clname[]" argument is limited in size; to prevent this particular
bug from being exploited you could:

for dir in /kernel /usr/kernel
do
cd $dir
mkdir -p a/b/c/d/e/f/g/h
mv sched a/b/c/d/e/f/g/h
ln -s a/b/c/d/e/f/g/h/sched .
done

Casper

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