"In the kernel" is a bit of a misnomer in Windows. The graphics subsystem is not... | Hacker News

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		derefr on June 24, 2015 \| parent \| context \| favorite \| on: Results of recent PostScript CharString security r... "In the kernel" is a bit of a misnomer in Windows. The graphics subsystem is not in the NT kernel (which is a pretty-minimal microkernel), though it is within the same Win32 process as the one containing NT kernel services. In other words: "within the kernel" from a userland perspective; in a separate security domain from NT's own perspective.

WallWextra on June 24, 2015 [–]

Does it execute in ring 0? I don't really understand how Windows works.

yuhong on June 24, 2015 | [–]

Yes, as do the rest of win32k.

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