Files
Henrik Rydgård 9315c0953a GamepadEmu: bounds-check touch pointer IDs before use
TouchInput::id was used directly to index the global primaryButton[]
array (MultiTouchButton::Touch) and to shift pointer bitmasks
(PSPDpad/PSPStick/PSPCustomStick/GestureGamepad::Touch), guarded only
by a debug-only assert in one of the five call sites - a no-op in
release builds. input.id isn't always a small sequential slot in
[0, TOUCH_MAX_POINTERS): SDL assigns SDL_FingerID values directly,
Android pointer IDs can go up to 31, and UWP's TouchMapper allocates
one more slot (11) than TOUCH_MAX_POINTERS (10) and can also return -1
when it runs out of slots - all reachable through ordinary multi-touch
use, no malicious input required.

Also apply bounds check to the PER_GAME gesture config ints
(iDoubleTapGesture/iSwipeUp/Down/Left/Right) before indexing
GestureKey::keyList[] with them.

Additionally, minor cleanup on Android and moves the TouchMapper helper
out from UWP to InputState.h.
2026-08-12 09:47:13 +02:00
..