id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
16292	"Virtualbox.exe ""segfault"""	cepal		"bare-metal: HP Zbook G3 / 15""
host OS: Win 7 / 64 / company-controlled updates
Vbox: latest official = 5.1.10 r112026 + matching additions
guest: Lubuntu (ubuntu + LXDE) 16.04 LTS / 64

description: randomly (within 2-3 hours from start) upon opening a new tab in Firefox in VM (or another new window/tab, ie e-mail in Thunderbird), the host's OS pops up following message and shuts the VM (but doesn't shut, if running the Virtualbox GUI app).

Windows Event message (same memory addresses each time):
Application popup: VirtualBox.exe - Application Error : The instruction at 0xbefc53ad referenced memory at 0x000000d0. The memory could not be read.

"	defect	closed	other	VirtualBox 5.1.10	obsolete	crash memory instruction		Linux	Windows