Fix: racy notifier captures update vs traversal

[lttng-modules.git] / src / probes / lttng-uprobes.c

diff --git a/src/probes/lttng-uprobes.c b/src/probes/lttng-uprobes.c
index 031bfa7cd3affafed75130840405d9c08ad17438..bab941abe348d2c1d96a91cf118948ac0bb9c87d 100644 (file)
--- a/src/probes/lttng-uprobes.c
+++ b/src/probes/lttng-uprobes.c
@@ -69,11 +69,13 @@ int lttng_uprobes_event_notifier_handler_pre(struct uprobe_consumer *uc, struct
        struct lttng_uprobe_handler *uprobe_handler =
                container_of(uc, struct lttng_uprobe_handler, up_consumer);
        struct lttng_event_notifier *event_notifier = uprobe_handler->u.event_notifier;
+       struct lttng_kernel_notifier_ctx notif_ctx;
 
        if (unlikely(!READ_ONCE(event_notifier->enabled)))
                return 0;
 
-       event_notifier->send_notification(event_notifier, NULL, NULL);
+       notif_ctx.eval_capture = LTTNG_READ_ONCE(event_notifier->eval_capture);
+       event_notifier->send_notification(event_notifier, NULL, NULL, &notif_ctx);
        return 0;
 }