[stiray]

I think that this might be an typo or at least it has plausible deniability. I have changed my coding style to always put constant on left side just to avoid such an error (such typo gave me a few days of debugging multithreaded code and I have just said "Never again!!" :D)

[luckylion]

A typo is possible if it had been submitted to normal code review, but hacking into a server to secretly modify code all but rules out an accident.

[sild]

If you are using gcc you can use the -Wparentheses flag to turn on warnings for this: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#inde...

[Tuna-Fish]

Even with the "typo" corrected, the patch makes no sense. There is no plausible deniability why it should do what it would do. It was definitely a deliberate attack.