Subj : src/sbbs3/chat.cpp To : Git commit to main/sbbs/master From : Rob Swindell (on Windows) Date : Fri Apr 28 2023 11:58 pm https://gitlab.synchro.net/main/sbbs/-/commit/62e2280e6e59c520eae9abb4 Modified Files: src/sbbs3/chat.cpp Log Message: Fix buffer overflow in guru chat parsing engine The trigger was this line in the recent change to guru.dat: Unrealized potential. :-( That open paren was parsed as the beginning of a new guru expression. A very long guru expression that overflowed the stack variable 'str' here. .