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input/cursor: fix heap-buffer overflow in constraint set_region 

Fixes #5383, caused by an oversight in 6f0a0bd.
This commit is contained in:
Tudor Brindus 2020-05-25 15:20:15 -04:00 committed by Simon Ser
parent 5d13f647f9
commit 34e0cad9ac
1 changed files with 6 additions and 2 deletions
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8
sway/input/cursor.c
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@ -831,8 +831,12 @@ static void handle_constraint_commit(struct wl_listener *listener,
static void handle_pointer_constraint_set_region(struct wl_listener *listener,
void *data) {
struct sway_cursor *cursor =
wl_container_of(listener, cursor, constraint_commit);
struct sway_pointer_constraint *sway_constraint =
wl_container_of(listener, sway_constraint, set_region);
struct wlr_pointer_constraint_v1 *constraint = data;
struct sway_seat *seat = constraint->seat->data;
struct sway_cursor *cursor = seat->cursor;
cursor->active_confine_requires_warp = true;
}