Author :
Pierre Le Marre
Date :
2025-01-29 12:19:10
Hash :502e9e5b Message :xkbcomp: Add stricter bounds for keycodes and levels
Our current implementation uses continuous arrays indexed by keycodes
and levels. This is simple and good enough for realistic keymaps.
However, they are allowed to have big values that will lead to either
memory exhaustion or a waste of memory (sparse arrays).
Added the much stricter upper bounds `0xfff` for keycodes[^1] and 2048
for levels[^2], which should still be plenty enough and provides stronger
memory security.
[^1]: Current max keycode is 0x2ff in Linux.
[^2]: Should be big enough to satisfy automatically generated keymaps.
Pierre Le Marre