If a full screen program is fading out and a touch start happens, it will result in a NULL pointer dereference when weston_touch_set_focus tries to derefernce view->surface->resource.
Instead, this patch sets the focus to NULL, which should be the same as if the program was destroyed during the touch anyway. Bug: https://bugs.freedesktop.org/show_bug.cgi?id=78706 --- desktop-shell/shell.c | 6 +++++- src/input.c | 10 ++++++++-- 2 files changed, 13 insertions(+), 3 deletions(-) diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c index bf52b93..ad6750d 100644 --- a/desktop-shell/shell.c +++ b/desktop-shell/shell.c @@ -4444,10 +4444,14 @@ fullscreen_binding(struct weston_seat *seat, uint32_t time, uint32_t button, voi static void touch_move_binding(struct weston_seat *seat, uint32_t time, void *data) { - struct weston_surface *focus = seat->touch->focus->surface; + struct weston_surface *focus; struct weston_surface *surface; struct shell_surface *shsurf; + if (seat->touch->focus == NULL) + return; + + focus = seat->touch->focus->surface; surface = weston_surface_get_main_surface(focus); if (surface == NULL) return; diff --git a/src/input.c b/src/input.c index d03333a..5e82f5d 100644 --- a/src/input.c +++ b/src/input.c @@ -1471,8 +1471,14 @@ weston_touch_set_focus(struct weston_seat *seat, struct weston_view *view) } if (view) { - struct wl_client *surface_client = - wl_resource_get_client(view->surface->resource); + struct wl_client *surface_client; + + if (!view->surface->resource) { + seat->touch->focus = NULL; + return; + } + + surface_client = wl_resource_get_client(view->surface->resource); move_resources_for_client(focus_resource_list, &seat->touch->resource_list, surface_client); -- 2.1.0 _______________________________________________ wayland-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/wayland-devel
