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backend/libinput: assert buffer overflow in add_pad_group_from_libinput

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This commit is contained in:
Simon Zeni 2024-04-18 13:23:10 -04:00
parent a79f7096a6
commit 140197f56d
1 changed files with 5 additions and 0 deletions
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5
backend/libinput/tablet_pad.c
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@ -40,6 +40,7 @@ static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
size_t ring = 0;
for (size_t i = 0; i < pad->ring_count; ++i) {
if (libinput_tablet_pad_mode_group_has_ring(li_group, i)) {
assert(ring < group->ring_count);
group->rings[ring++] = i;
}
}
@ -53,9 +54,11 @@ static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
if (group->strips == NULL) {
goto group_fail;
}
size_t strip = 0;
for (size_t i = 0; i < pad->strip_count; ++i) {
if (libinput_tablet_pad_mode_group_has_strip(li_group, i)) {
assert(strip < group->strip_count);
group->strips[strip++] = i;
}
}
@ -69,9 +72,11 @@ static void add_pad_group_from_libinput(struct wlr_tablet_pad *pad,
if (group->buttons == NULL) {
goto group_fail;
}
size_t button = 0;
for (size_t i = 0; i < pad->button_count; ++i) {
if (libinput_tablet_pad_mode_group_has_button(li_group, i)) {
assert(button < group->button_count);
group->buttons[button++] = i;
}
}