I can confirm that:
Kubuntu 18.04 daily ISO with linux-image-5.0.0-27-generic = vlc fails to start Kubuntu 18.04.3 release ISO with linux-image-5.0.0-23-generic = vlc starts ok
/proc/self/maps in the daily looks the same as Eoan
I can confirm that:
Kubuntu 18.04 daily ISO with linux-image- 5.0.0-27- generic = vlc fails to start 5.0.0-23- generic = vlc starts ok
Kubuntu 18.04.3 release ISO with linux-image-
/proc/self/maps in the daily looks the same as Eoan