Bug #3531
Updated by Marcel Telka almost 7 years ago
If the log_sysevent_filename() and log_event_upcall() are running concurrently it can cause several issues: - two threads can call the door_ki_rele(event_door) in parallel - *Root Cause 1* (panic) - the event_door even_door is cleared out before it is referenced - *Root Cause 2* (panic) - the logevent_door_upcall_filename is used after it is freed - *Root Cause 3* (use-after-free) *Solution:* Added event_door_mutex into log_sysevent_filename() and log_event_upcall() to prevent the race.