tmpfs and brickability (size=50% default considered naieve).

If you have two default tmpfs instances on your box (hi buildroot!) and they're world writeable and a normal user goes "cat /dev/zero > /run/fillit; cat /dev/zero > /tmp/fillit" the system then goes "sh: can't fork" trying to call rm on those files, because they each default to 50% of total system

tmpfs and brickability (size=50% default considered naieve).

If you have two default tmpfs instances on your box (hi buildroot!) and they're world writeable and a normal user goes "cat /dev/zero > /run/fillit; cat /dev/zero > /tmp/fillit" the system then goes "sh: can't fork" trying to call rm on those files, because they each default to 50% of total system