https://bugs.winehq.org/show_bug.cgi?id=50800
--- Comment #15 from Priit priit@ww.ee --- Alright, just to be sure. While the commit 8b3cc57df0b791ca6c33f383f9358e1613206b84 stands, I made a new pure Battle.net + Hearthstone install (without any tricks) in new bottle and the results in the same. Game crashes at the same position with the same malloc() error.
Installation process: WINEPREFIX="/home/deemon/git/.wine-test2" wine-git/wine Battle.net-Setup.exe
configure battle.net launcher: Settings > App: On Game Launch: Exit the Battle.net App completely Advanced Features: [ ] (uncheck) Use browser hardware acceleration
Install Hearthstone with the launcher.
Start HS or exit and launch it from command line: env WINEPREFIX="/home/deemon/git/.wine-test2" ~/git/wine-git/wine C:\windows\command\start.exe /Unix /home/deemon/git/.wine-test2/dosdevices/c:/users/Public/Desktop/Battle.net.lnk