feat(修复问题): 修复问题

internal/fs/symfs_windows.go

@@ -253,7 +253,13 @@ func (s *SymFS) Write(path string, buff []byte, ofst int64, fh uint64) int {
 // 入参: path 路径, fh 文件句柄
 // 返回: int 错误码
 func (s *SymFS) Flush(path string, fh uint64) int {
-	syscall.FlushFileBuffers(syscall.Handle(fh))
+	err := syscall.FlushFileBuffers(syscall.Handle(fh))
+	if err != nil {
+		if sysErr, ok := err.(syscall.Errno); ok && sysErr == syscall.ERROR_ACCESS_DENIED {
+			return 0
+		}
+		return errno(err)
+	}
 	return 0
 }
 
@@ -459,9 +465,16 @@ func (s *SymFS) watch() {
 		if err != nil {
 			return
 		}
+		headerSize := uint32(unsafe.Offsetof(FileNotifyInformation{}.FileName))
 		var offset uint32
 		for {
+			if offset+headerSize > bytesReturned {
+				break
+			}
 			info := (*FileNotifyInformation)(unsafe.Pointer(&buf[offset]))
+			if offset+headerSize+info.FileNameLength > bytesReturned {
+				break
+			}
 			length := info.FileNameLength / 2
 			nameSlice := (*[1 << 16]uint16)(unsafe.Pointer(&info.FileName[0]))[:length:length]
 			fileName := syscall.UTF16ToString(nameSlice)