A potential bug of return stack address

[yuxuan He]

Ubuntu version: 18.04
sqlite version:3.22

Hello,I found apotential bugs in package sqlite3,and the .docx file in the attachment I uploaded shows the occurrence process of the bug in a graphical way.Would you help me check whether the bug mentioned below are true? Thank you very much for your patience.

In file sqlite3/build/shell.c(build is a directory generated by configure)
In function zipfileFilter
In line 4923:
load value of pointer which is parameter of function to pCsr
In line 4966:
load stack address to member of *pCsr
The entire graphic description is shown in figure 1 in .docx file.