dbus-daemon slowly eating up memory (slow heap memory leak)

On an idle phone I measured memory consumption of dbus-daemon and observed it consumed an extra 2232K of anonymous mapped memory (aka heap) over 570 minutes of observation, which works out to be about 5.5MB of memory leakage per day.

One can observe the heap memory mapping grow using:

ps -ef | grep dbus-daemon
message+ 798 1 0 Sep01 ? 00:08:41 dbus-daemon --system --fork
phablet 1701 1570 0 Sep01 ? 00:02:06 dbus-daemon --fork --session --address=unix:abstract=/tmp/dbus-DcfHVNdM5f

smemstat -p 798 60

and watching the heap grow (smemstat will dump out stats every 60 seconds).

I'm pretty confident this is a small memory leak somewhere.