That "fix" is even worse than the problem itself:
It first tries wether the exploit works and overwrites parts of kernel memory on the way.
If your machine only has few and trusted users, don't use it. If you have untrusted users (or
anticipate having some remote exploit allowing the attacker to execute his code under some
(non-root) account, it would be better to shut down the machine until you have an updated
kernel installed. Either by patching your kernel yourself or by installing a distribution
kernel with the fixes in it.