zlib-1.3.1, deflate.c, line 497

[xuyun018]

s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, LIT_BUFS);
s->pending_buf_size = (ulg)s->lit_bufsize * 4;

应该为 s->pending_buf_size = (ulg)s->lit_bufsize * LIT_BUFS;

[nmoinvaz]

https://github.com/madler/zlib/commit/ac8f12c97d1afd9bafa9c710f827d40a407d3266#r137966340

[madler]

The code is correct as is. The suggested change would break the code.