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xwayland: validate PID before activating unmanaged surface

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Check that an unmanaged surface trying to grab focus is actually a child
of the topmost mapped view.
This commit is contained in:
Johan Malm 2023-04-19 20:40:40 +01:00 • committed by Johan Malm
parent 64d62a91b6
commit 5744bba849
3 changed files with 18 additions and 3 deletions
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6
src/desktop.c
View file

@ -200,8 +200,8 @@ desktop_cycle_view(struct server *server, struct view *start_view,
return NULL;
}
static struct view *
topmost_mapped_view(struct server *server)
struct view *
desktop_topmost_mapped_view(struct server *server)
{
struct view *view;
struct wl_list *node_list;
@ -242,7 +242,7 @@ desktop_focused_view(struct server *server)
void
desktop_focus_topmost_mapped_view(struct server *server)
{
struct view *view = topmost_mapped_view(server);
struct view *view = desktop_topmost_mapped_view(server);
desktop_focus_and_activate_view(&server->seat, view);
if (view) {
view_move_to_front(view);

14
src/xwayland-unmanaged.c
View file

@ -166,6 +166,20 @@ unmanaged_handle_request_activate(struct wl_listener *listener, void *data)
struct xwayland_unmanaged *unmanaged = xsurface->data;
struct server *server = unmanaged->server;
struct seat *seat = &server->seat;
/*
* Validate that the unmanaged surface trying to grab focus is actually
* a child of the topmost mapped view before granting the request.
*/
struct view *view = desktop_topmost_mapped_view(server);
if (view && view->type == LAB_XWAYLAND_VIEW) {
struct wlr_xwayland_surface *surf =
wlr_xwayland_surface_from_wlr_surface(view->surface);
if (surf && surf->pid != xsurface->pid) {
return;
}
}
seat_focus_surface(seat, xsurface->surface);
}