--- x/io_uring/cancel.c
+++ y/io_uring/cancel.c
@@ -294,6 +294,7 @@ int io_sync_cancel(struct io_ring_ctx *c
 		mutex_unlock(&ctx->uring_lock);
 		ret = io_run_task_work_sig(ctx);
 		if (ret < 0) {
+			finish_wait(&ctx->cq_wait, &wait);
 			mutex_lock(&ctx->uring_lock);
 			break;
 		}