Bug of the month in Open Source projects

PVS-Studio team reviewed a large number of projects that they checked from January 2014 to March and selected 54 interesting bugs: 39 for the C/C++ language and 15 for C#, because we started the C# support only in 2016. The table gets constantly updated and it can be found by this link: https://hownot2code.com/bug-of-the-month/.

They reviewed existing error base and the always up-to-date list of open source projects. Perhaps, these materials would be interesting and also useful to the readers, as they can be used as recommendations of how to avoid the same errors, they may also help in doing some researches, related to the improvement of the software reliability and even for working on the code standards.

The existence of a large amount of errors in the code (especially in big projects) can be explained by the fact that it's not always possible to hold the attention and control every line of code, especially when there are thousands of them. This is how Copy-paste errors, undefined behavior, null pointer dereference, typos and other errors get in the code. They could all be avoided with the help of static analysis.

Source: https://www.viva64.com/en/b/0490/