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| author | Wim Taymans <wtaymans@redhat.com> | 2019-11-12 17:41:51 +0100 |
|---|---|---|
| committer | Wim Taymans <wtaymans@redhat.com> | 2019-11-12 17:41:51 +0100 |
| commit | e32e1d014e1774a052edca4916f6efbc1fbcff32 (patch) | |
| tree | 1b9a0035e3eb7417f432acba806b42693ff18df7 | |
| parent | d8b1878c9b85cee8b8ebcf99db9e9e1aa4461638 (diff) | |
SDL_evdev: make sure we don't overrun our slots arrayfixes
Make sure we clamp current_slot to max_slots so that we never
overrun our slots array.
| -rw-r--r-- | src/core/linux/SDL_evdev.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/core/linux/SDL_evdev.c b/src/core/linux/SDL_evdev.c index b33a8fdf20..10293cf444 100644 --- a/src/core/linux/SDL_evdev.c +++ b/src/core/linux/SDL_evdev.c @@ -307,7 +307,8 @@ SDL_EVDEV_Poll(void) case ABS_MT_SLOT: if (!item->is_touchscreen) /* FIXME: temp hack */ break; - item->touchscreen_data->current_slot = events[i].value; + if (events[i].value < item->touchscreen_data->max_slots) + item->touchscreen_data->current_slot = events[i].value; break; case ABS_MT_TRACKING_ID: if (!item->is_touchscreen) /* FIXME: temp hack */ |