According to the dump files, it's a double-free in the Intel graphics driver causing the trap, which causes the crash (page faulting is not allowed in kernel non-paged pool memory, and a double-free in a graphics driver will definitely cause this behavior).
It's not the newest Intel driver, but it's pretty new - I'd recommend either updating to the absolute latest from the Intel site, or rolling back to the initial driver Windows 8 installs.
0: kd> lmvm igdkmd32
start end module name
9202e000 923d2000 igdkmd32 T (no symbols)
Loaded symbol image file: igdkmd32.sys
Image path: \SystemRoot\system32\DRIVERS\igdkmd32.sys
Image name: igdkmd32.sys
Timestamp: Wed Sep 26 15:44:50 2012 (50635B32)
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
Intel® Driver Update Utility for graphics drivers