diff --git a/kernel/base/ipc/los_sem_debug.c b/kernel/base/ipc/los_sem_debug.c
index 73a6f2d8..148ee90a 100644
--- a/kernel/base/ipc/los_sem_debug.c
+++ b/kernel/base/ipc/los_sem_debug.c
@@ -71,7 +71,7 @@ STATIC VOID OsSemPendedTaskNamePrint(LosSemCB *semNode)
     PRINTK("Pended task list : ");
     for (i = 0; i < num; i++) {
         if (i == 0) {
-            PRINTK("%s\n", nameArr[i]);
+            PRINTK("\n%s", nameArr[i]);
         } else {
             PRINTK(", %s", nameArr[i]);
         }
diff --git a/kernel/base/mem/common/los_memstat.c b/kernel/base/mem/common/los_memstat.c
index 5140d452..dea9dbdf 100644
--- a/kernel/base/mem/common/los_memstat.c
+++ b/kernel/base/mem/common/los_memstat.c
@@ -83,7 +83,7 @@ LITE_OS_SEC_TEXT_MINOR VOID OsTaskMemClear(UINT32 taskID)
     }
     if (g_tskMemUsedInfo[taskID].memUsed != 0) {
         PRINT_WARN("mem used of task '%s' is:0x%x, not zero when task being deleted\n",
-                   OsCurrTaskGet()->taskName, g_tskMemUsedInfo[taskID].memUsed);
+                   OS_TCB_FROM_TID(taskID)->taskName, g_tskMemUsedInfo[taskID].memUsed);
     }
     g_tskMemUsedInfo[taskID].memUsed = 0;
 }
@@ -123,4 +123,4 @@ LITE_OS_SEC_TEXT_MINOR UINT32 OsTaskSlabUsage(UINT32 taskID)
 #if __cplusplus
 }
 #endif /* __cplusplus */
-#endif /* __cplusplus */
\ No newline at end of file
+#endif /* __cplusplus */
diff --git a/kernel/base/vm/los_vm_scan.c b/kernel/base/vm/los_vm_scan.c
index 13d20de3..38277254 100644
--- a/kernel/base/vm/los_vm_scan.c
+++ b/kernel/base/vm/los_vm_scan.c
@@ -337,7 +337,7 @@ int OsTryShrinkMemory(size_t nPage)
     return nReclaimed;
 }
 #else
-int TryShrinkMemory(size_t nPage)
+int OsTryShrinkMemory(size_t nPage)
 {
     return 0;
 }
diff --git a/kernel/base/vm/los_vm_syscall.c b/kernel/base/vm/los_vm_syscall.c
index 1a3b8194..a8f85eec 100644
--- a/kernel/base/vm/los_vm_syscall.c
+++ b/kernel/base/vm/los_vm_syscall.c
@@ -179,11 +179,15 @@ VOID *LOS_DoBrk(VOID *addr)
         if (LOS_UnMMap(newBrk, (oldBrk - newBrk)) < 0) {
             return (void *)(UINTPTR)space->heapNow;
         }
-        space->heapNow = (VADDR_T)(UINTPTR)addr;
-        return addr;
+        space->heapNow = (VADDR_T)(UINTPTR)alignAddr;
+        return alignAddr;
     }
 
     (VOID)LOS_MuxAcquire(&space->regionMux);
+    if ((UINTPTR)alignAddr >= space->mapBase) {
+        VM_ERR("Process heap memory space is insufficient");
+        return (VOID *)-ENOMEM;
+    }
     if (space->heapBase == space->heapNow) {
         region = LOS_RegionAlloc(space, space->heapBase, size,
                                  VM_MAP_REGION_FLAG_PERM_READ | VM_MAP_REGION_FLAG_PERM_WRITE |
@@ -197,11 +201,6 @@ VOID *LOS_DoBrk(VOID *addr)
         space->heap = region;
     }
 
-    if ((UINTPTR)alignAddr >= space->mapBase) {
-        VM_ERR("Process heap memory space is insufficient");
-        goto REGION_ALLOC_FAILED;
-    }
-
     space->heapNow = (VADDR_T)(UINTPTR)alignAddr;
     space->heap->range.size = size;
     ret = (VOID *)(UINTPTR)space->heapNow;
diff --git a/kernel/common/los_hilog.c b/kernel/common/los_hilog.c
index 612029ba..9a259fee 100644
--- a/kernel/common/los_hilog.c
+++ b/kernel/common/los_hilog.c
@@ -178,7 +178,7 @@ static ssize_t HiLogRead(FAR struct file *filep, char *buffer, size_t bufLen)
     }
 
     if (bufLen < header.len + sizeof(header)) {
-        dprintf("buffer too small,bufLen=%d, header.len=%d,%d\n", bufLen, header.len, header.hdrSize, header.nsec);
+        dprintf("buffer too small,bufLen=%d, header.len=%d,%d\n", bufLen, header.len, header.hdrSize);
         retval = -ENOMEM;
         goto out;
     }
@@ -248,13 +248,14 @@ static void HiLogCoverOldLog(size_t bufLen)
     struct HiLogEntry header;
     size_t totalSize = bufLen + sizeof(struct HiLogEntry);
 
-    while (totalSize + g_hiLogDev.size >= HILOG_BUFFER) {
+    while (totalSize + g_hiLogDev.size > HILOG_BUFFER) {
         retval = HiLogReadRingBuffer((unsigned char *)&header, sizeof(header));
         if (retval < 0) {
             break;
         }
 
-        HiLogBufferDec(sizeof(header) + header.len);
+        HiLogBufferDec(sizeof(header));
+        HiLogBufferDec(header.len);
     }
 }
 
diff --git a/security/vid/vid.c b/security/vid/vid.c
index 0da5be0a..f494e6fd 100644
--- a/security/vid/vid.c
+++ b/security/vid/vid.c
@@ -138,6 +138,7 @@ static UINT16 GetFreeVid(VOID)
     }
 
     (void)memcpy_s(tmp, mapMaxNum * sizeof(UINT32), idMap->bitMap, (mapMaxNum - 1) * sizeof(UINT32));
+    LOS_MemFree(m_aucSysMem0, idMap->bitMap);
     idMap->bitMap = tmp;
     idMap->mapCount = mapMaxNum;
     idMap->bitMap[i] = 1;
diff --git a/syscall/time_syscall.c b/syscall/time_syscall.c
index af2188dc..3a3502de 100644
--- a/syscall/time_syscall.c
+++ b/syscall/time_syscall.c
@@ -330,7 +330,7 @@ int SysClockNanoSleep(clockid_t clk, int flags, const struct timespec *req, stru
 {
     int ret;
     struct timespec sreq;
-    struct timespec srem;
+    struct timespec srem = {0};
 
     if (!req || LOS_ArchCopyFromUser(&sreq, req, sizeof(struct timespec))) {
         errno = EFAULT;
@@ -354,7 +354,7 @@ int SysNanoSleep(const struct timespec *rqtp, struct timespec *rmtp)
 {
     int ret;
     struct timespec srqtp;
-    struct timespec srmtp;
+    struct timespec srmtp = {0};
 
     if (!rqtp || LOS_ArchCopyFromUser(&srqtp, rqtp, sizeof(struct timespec))) {
         errno = EFAULT;
@@ -477,7 +477,7 @@ int SysClockNanoSleep64(clockid_t clk, int flags, const struct timespec64 *req,
 {
     int ret;
     struct timespec rq;
-    struct timespec rm;
+    struct timespec rm = {0};
     struct timespec64 sreq;
     struct timespec64 srem;