fixed 78db02d from https://gitee.com/hw_llm/kernel_liteos_a/pulls/1194
Description: fix CVE-810023952561737728
IssueNo: https://gitee.com/openharmony/kernel_liteos_a/issues/IAAZWU
Feature Or Bugfix: Bugfix
Binary Source: No
Signed-off-by: hw_llm <liu.limin@huawei.com>