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Zpes / pte-protect

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Flipping RW bit BSOD #2

Open marfixdev opened 6 months ago

marfixdev commented 6 months ago

When flipping RW bit it gives BSOD. It's fine when flipping NX bit but RW bit flip doesn't work.

marfixdev commented 6 months ago

What I did was. Allocated PAGE_READONLY memory from UM and setting RW bit afterwards but after that I also checked Present bit and Accessed bit was 0

Zpes commented 6 months ago

Yea, so you gotta access the page before you can actually flip the rw bit.

On Wed, 28 Feb 2024 at 17:24, marfixdev @.***> wrote:

What I did was. Allocated PAGE_READONLY memory from UM and setting RW bit afterwards but after that I also checked Present bit and Accessed bit was 0

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