Description: shm pid入参 漏洞修复

IssueNo: https://gitee.com/openharmony/kernel_liteos_a/issues/IAWM6R
Feature Or Bugfix: Bugfix
Binary Source: No
Signed-off-by: hw_llm <liu.limin@huawei.com>

kernel/base/vm/shm.c

@@ -689,6 +689,9 @@ INT32 ShmCtl(INT32 shmid, INT32 cmd, struct shmid_ds *buf)
                                     (shm_perm.mode & ACCESSPERMS);
             seg->ds.shm_ctime = time(NULL);
 #ifdef LOSCFG_SHELL
+            if (OsProcessIDUserCheckInvalid(shm_perm.uid)) {
+                break;
+            }
             (VOID)memcpy_s(seg->ownerName, OS_PCB_NAME_LEN, OS_PCB_FROM_PID(shm_perm.uid)->processName,
                            OS_PCB_NAME_LEN);
 #endif