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layer-shell: Reject requests on gone surfaces

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When the surface was destroyed but the resource is still around
we might dereference a null pointer otherwise.
This commit is contained in:
Guido Günther 2019-07-16 14:44:50 +02:00 committed by Simon Ser
parent 91752e8285
commit 692a16cef7
1 changed files with 27 additions and 0 deletions
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27
types/wlr_layer_shell_v1.c
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@ -60,6 +60,10 @@ static void layer_surface_handle_ack_configure(struct wl_client *client,
bool found = false; bool found = false;
struct wlr_layer_surface_v1_configure *configure, *tmp; struct wlr_layer_surface_v1_configure *configure, *tmp;
if (!surface) {
return;
}
wl_list_for_each_safe(configure, tmp, &surface->configure_list, link) { wl_list_for_each_safe(configure, tmp, &surface->configure_list, link) {
if (configure->serial < serial) { if (configure->serial < serial) {
layer_surface_configure_destroy(configure); layer_surface_configure_destroy(configure);
@ -88,6 +92,10 @@ static void layer_surface_handle_ack_configure(struct wl_client *client,
static void layer_surface_handle_set_size(struct wl_client *client, static void layer_surface_handle_set_size(struct wl_client *client,
struct wl_resource *resource, uint32_t width, uint32_t height) { struct wl_resource *resource, uint32_t width, uint32_t height) {
struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource); struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource);
if (!surface) {
return;
}
surface->client_pending.desired_width = width; surface->client_pending.desired_width = width;
surface->client_pending.desired_height = height; surface->client_pending.desired_height = height;
} }
@ -105,12 +113,20 @@ static void layer_surface_handle_set_anchor(struct wl_client *client,
"invalid anchor %d", anchor); "invalid anchor %d", anchor);
} }
struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource); struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource);
if (!surface) {
return;
}
surface->client_pending.anchor = anchor; surface->client_pending.anchor = anchor;
} }
static void layer_surface_handle_set_exclusive_zone(struct wl_client *client, static void layer_surface_handle_set_exclusive_zone(struct wl_client *client,
struct wl_resource *resource, int32_t zone) { struct wl_resource *resource, int32_t zone) {
struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource); struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource);
if (!surface) {
return;
}
surface->client_pending.exclusive_zone = zone; surface->client_pending.exclusive_zone = zone;
} }
@ -118,6 +134,10 @@ static void layer_surface_handle_set_margin(
struct wl_client *client, struct wl_resource *resource, struct wl_client *client, struct wl_resource *resource,
int32_t top, int32_t right, int32_t bottom, int32_t left) { int32_t top, int32_t right, int32_t bottom, int32_t left) {
struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource); struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource);
if (!surface) {
return;
}
surface->client_pending.margin.top = top; surface->client_pending.margin.top = top;
surface->client_pending.margin.right = right; surface->client_pending.margin.right = right;
surface->client_pending.margin.bottom = bottom; surface->client_pending.margin.bottom = bottom;
@ -128,6 +148,10 @@ static void layer_surface_handle_set_keyboard_interactivity(
struct wl_client *client, struct wl_resource *resource, struct wl_client *client, struct wl_resource *resource,
uint32_t interactive) { uint32_t interactive) {
struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource); struct wlr_layer_surface_v1 *surface = layer_surface_from_resource(resource);
if (!surface) {
return;
}
surface->client_pending.keyboard_interactive = !!interactive; surface->client_pending.keyboard_interactive = !!interactive;
} }
@ -139,6 +163,9 @@ static void layer_surface_handle_get_popup(struct wl_client *client,
struct wlr_xdg_surface *popup_surface = struct wlr_xdg_surface *popup_surface =
wlr_xdg_surface_from_popup_resource(popup_resource); wlr_xdg_surface_from_popup_resource(popup_resource);
if (!parent) {
return;
}
assert(popup_surface->role == WLR_XDG_SURFACE_ROLE_POPUP); assert(popup_surface->role == WLR_XDG_SURFACE_ROLE_POPUP);
struct wlr_xdg_popup *popup = popup_surface->popup; struct wlr_xdg_popup *popup = popup_surface->popup;
popup->parent = parent->surface; popup->parent = parent->surface;