Comment 12 for bug 1600582

I don't know the specifics of how the signatures and signature validation are implemented.

Indeed, the issue is certainly not limited to this click, and it doesn't even require a large click to be a problem, or little physical RAM. Even on a device with lots of RAM, one could have enough applications opened, or enough data cached in a directory such as /tmp or /run that is backed by RAM, to cause problems.