!973 解决SystemGetParameterCommitId接口fuzzy测试会引起sigbus问题

Merge pull request !973 from Mupceet/master_cc_solve_sigbus

services/param/base/param_comm.c

@@ -72,7 +72,10 @@ INIT_LOCAL_API ParamTrieNode *GetTrieNodeByHandle(ParamHandle handle)
     WorkSpace *workSpace = HASHMAP_ENTRY(node, WorkSpace, hashNode);
     WORKSPACE_RW_UNLOCK(*paramSpace);
     index = index - workSpace->area->startIndex;
-    return (ParamTrieNode *)GetTrieNode(workSpace, index);
+    if (PARAM_IS_ALIGNED(index)) {
+        return (ParamTrieNode *)GetTrieNode(workSpace, index);
+    }
+    return NULL;
 }
 
 INIT_LOCAL_API WorkSpace *GetFirstWorkSpace(void)

services/param/include/param_utils.h

@@ -49,6 +49,7 @@ typedef struct cmdLineInfo {
 #define UNUSED(x) (void)(x)
 #endif
 #define PARAM_ALIGN(len) (((len) + 0x03) & (~0x03))
+#define PARAM_IS_ALIGNED(x) (((x) & 0x03) == 0)
 #define PARAM_ENTRY(ptr, type, member) (type *)((char *)(ptr)-offsetof(type, member))
 
 #define IS_READY_ONLY(name) \