PHP Fatal Error: Possible integer overflow in memory allocation (18446744073709551614 + 4096)

[POPSuL]

Expected behaviour

Driver should return false, because value 123 is not data compressed by zstd

Actual behaviour

PHP Fatal Error: Possible integer overflow in memory allocation (18446744073709551614 + 4096)

I'm seeing this behaviour on

• OS: Ubuntu linux
• Redis: 6.0.6
• PHP: 8.0.2
• phpredis: 5.3.3

Steps to reproduce, backtrace or example script

1. Set some value into cache (e.g. abc=123)
2. Enable ZSDT compression
3. try to fetch value by key abc

I've checked

• There is no similar issue from other users
• Issue isn't fixed in develop branch