diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c index 94600f1f7efa..c79193e598f5 100644 --- a/kernel/trace/trace_event_perf.c +++ b/kernel/trace/trace_event_perf.c @@ -302,6 +302,8 @@ int perf_uprobe_init(struct perf_event *p_event, bool is_retprobe) return -ENOMEM; ret = strncpy_from_user( path, u64_to_user_ptr(p_event->attr.uprobe_path), PATH_MAX); + if (ret == PATH_MAX) + return -E2BIG; if (ret < 0) goto out; if (path[0] == '\0') {