3 ms·
IFUNC and landlock could be debugged pretty easily at runtime, just by adding some instrumentation.
by josephg 3y ago
IFUNC and landlock could be debugged pretty easily at runtime, just by adding some instrumentation.
- saagarjha 3y agoYes but that requires you to know that someone will use it beforehand.
- josephg 3y agoNow that we know IFUNC can me misused like this, it would be pretty silly if we allow other, future exploits to use the same trick.
- saagarjha 3y agoifunc was only used because it’s an obscure feature that is little-used and provides a way to convert a backdoor into easy execution. There are many others and it would be silly to try to catch them all.