Hallo, thanks for the report.
We're ready to fix this ASAP, but, unfortunately, these crashlog informations aren't sufficient to reproduce the crash (on our machines). Please, could You perform the steps below to provide more details about the flaw? Note that this is a fully generic scenario for all these cases:
0) Please give us info about Your machine/system:
- open a Terminal Utility, and execute: system_profiler >~/sp.log
- send us the sp.log file
1) Identify the file that causes the crash (assuming that this is a deterministic crash on a particular file):
- as common user (not root) open a Terminal Utility, and execute: defaults write com.avast.MacAvast MADLogRedirection ~/mad.log
- in Avast!, choose "Quit avast! antivirus and Agent"
- restart the application and try to scan the problematic area again (~/mad.log should start growing)
- after crash, look into the mad.log what files were scanned right before it crashed
- restart Avast! and try to scan their parent (or even higher) directory next time (it should crash again in a while now)
- - if so, restart Avast!, open Terminal Utility and execute: telnet -u ~/Library/Application\ Support/com.avast.MacAvast/socket (you should see 220 DAEMON Welcome... banner-message)
- - if TRIAL is zero, load the license first: LICENSE PATH path_to_Your_license_file (otherwise skip this step)
- - type SCAN path_to_the_parent_directory_of_problematic_file (the connection will get closed by dying daemon)
-- the last line seen, without the
- 0.0, is probably the culprit-file (verify it by another restart & scan attempt, or try the subsequent file)
- send us the file, if possible
That's all for now, in case that these steps won't lead to the cause, additional steps will be given

.
Regards,
PC