Comment 3 for bug 972324

There may also exist a security issue, where user alice creates specially crafted keymaps in /tmp/$HASH.xkm and then user bob launched X and the X system tries to re-use alice's evil keymap.

I'm unsure if the X server keymap loader is exploitable, but it is likely that keymaps should not be shared between users in this way (if nothing else, alice can upload a wacky keymap and bob may not know how to turn it off.)

-A