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authorJiDe Zhang <zccrs@live.com>2023-09-08 21:36:56 +0800
committerSimon Ser <contact@emersion.fr>2023-10-06 10:04:11 +0200
commitca19014af011f5a6433fb6763fa1350c03a77f65 (patch)
tree88f3c8698a362bdfb53569132e25e5983a74df46
parente58c7bb792adb6bd7fe24070648046bd3ffe8104 (diff)
xwayland: fix double free wlr_xwayland_shell_v1
-rw-r--r--include/wlr/xwayland/shell.h1
-rw-r--r--include/wlr/xwayland/xwayland.h1
-rw-r--r--xwayland/shell.c3
-rw-r--r--xwayland/xwayland.c10
4 files changed, 15 insertions, 0 deletions
diff --git a/include/wlr/xwayland/shell.h b/include/wlr/xwayland/shell.h
index 6cd3d93e..da5cb990 100644
--- a/include/wlr/xwayland/shell.h
+++ b/include/wlr/xwayland/shell.h
@@ -21,6 +21,7 @@ struct wlr_xwayland_shell_v1 {
struct wl_global *global;
struct {
+ struct wl_signal destroy;
struct wl_signal new_surface; // struct wlr_xwayland_surface_v1
} events;
diff --git a/include/wlr/xwayland/xwayland.h b/include/wlr/xwayland/xwayland.h
index 6761eff0..68c8c0ac 100644
--- a/include/wlr/xwayland/xwayland.h
+++ b/include/wlr/xwayland/xwayland.h
@@ -49,6 +49,7 @@ struct wlr_xwayland {
struct wl_listener server_ready;
struct wl_listener server_destroy;
struct wl_listener seat_destroy;
+ struct wl_listener shell_destroy;
void *data;
};
diff --git a/xwayland/shell.c b/xwayland/shell.c
index 9c5a9d20..1f7e11af 100644
--- a/xwayland/shell.c
+++ b/xwayland/shell.c
@@ -179,6 +179,7 @@ struct wlr_xwayland_shell_v1 *wlr_xwayland_shell_v1_create(
wl_list_init(&shell->surfaces);
wl_signal_init(&shell->events.new_surface);
+ wl_signal_init(&shell->events.destroy);
shell->display_destroy.notify = handle_display_destroy;
wl_display_add_destroy_listener(display, &shell->display_destroy);
@@ -193,6 +194,8 @@ void wlr_xwayland_shell_v1_destroy(struct wlr_xwayland_shell_v1 *shell) {
return;
}
+ wl_signal_emit_mutable(&shell->events.destroy, NULL);
+
struct wlr_xwayland_surface_v1 *xwl_surface, *tmp;
wl_list_for_each_safe(xwl_surface, tmp, &shell->surfaces, link) {
xwl_surface_destroy(xwl_surface);
diff --git a/xwayland/xwayland.c b/xwayland/xwayland.c
index b66dde65..98d00fc4 100644
--- a/xwayland/xwayland.c
+++ b/xwayland/xwayland.c
@@ -63,6 +63,12 @@ static void handle_server_ready(struct wl_listener *listener, void *data) {
wl_signal_emit_mutable(&xwayland->events.ready, NULL);
}
+static void handle_shell_destroy(struct wl_listener *listener, void *data) {
+ struct wlr_xwayland *xwayland =
+ wl_container_of(listener, xwayland, shell_destroy);
+ xwayland->shell_v1 = NULL;
+}
+
void wlr_xwayland_destroy(struct wlr_xwayland *xwayland) {
if (!xwayland) {
return;
@@ -71,6 +77,7 @@ void wlr_xwayland_destroy(struct wlr_xwayland *xwayland) {
wl_list_remove(&xwayland->server_destroy.link);
wl_list_remove(&xwayland->server_start.link);
wl_list_remove(&xwayland->server_ready.link);
+ wl_list_remove(&xwayland->shell_destroy.link);
free(xwayland->cursor);
wlr_xwayland_set_seat(xwayland, NULL);
@@ -125,6 +132,9 @@ struct wlr_xwayland *wlr_xwayland_create(struct wl_display *wl_display,
xwayland->server_ready.notify = handle_server_ready;
wl_signal_add(&xwayland->server->events.ready, &xwayland->server_ready);
+ xwayland->shell_destroy.notify = handle_shell_destroy;
+ wl_signal_add(&xwayland->shell_v1->events.destroy, &xwayland->shell_destroy);
+
return xwayland;
}