cuDNN installation issue on Ubuntu 17.10

After install CUDA 9.2 successful. I try to install cuDNN7.1 follow the install instructions select install from a tar and execute following steps:
sudo cp cuda/include/cudnn.h /usr/local/cuda/include sudo cp cuda/lib64/libcudnn* /usr/local/cuda/lib64
$ sudo chmod a+r /usr/local/cuda/include/cudnn.h
/usr/local/cuda/lib64/libcudnn*

but when I execute the last step ‘/usr/local/cuda/lib64/libcudnn*’ system crash and a core generated. the information as below:

[New LWP 3230]

warning: Unexpected size of section .reg-xstate/3230' in core file. Core was generated by /usr/local/cuda/lib64/libcudnn.so /usr/local/cuda/lib64/libcudnn.so.7 /usr/loca’.
Program terminated with signal SIGSEGV, Segmentation fault.

warning: Unexpected size of section `.reg-xstate/3230’ in core file.
#0 0x0000000000000004 in ?? ()

don’t how to solve it,Pls help me!