!1238 shm pid 入参漏洞修复

Merge pull request !1238 from hw_llm/master
2024-10-12 12:07:26 +00:00 · 2024-10-12 12:07:26 +00:00 · 20c42a9de5
parent 51428fb84a 14c79fc921
commit 20c42a9de5
1 changed files with 3 additions and 0 deletions
--- a/kernel/base/vm/shm.c
+++ b/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