Prevents size underflow in page iteration loop#44
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Pull request overview
This PR updates the protect_region page-iteration loop for 64-bit page tables to avoid usize underflow when the page size exceeds the remaining region size.
Changes:
- Removes the
assert!(page_size as usize <= size)inprotect_region(64-bit). - Decrements
sizebymin(page_size, size)to ensure loop termination without underflow.
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Ensures that a default 4K page size is returned when an entry is not present, avoiding potential underflow when the page size exceeds the remaining region. Signed-off-by: Godones <chenlinfeng25@outlook.com>
equation314
approved these changes
Apr 1, 2026
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Ensures that a default 4K page size is returned when an entry is not present, avoiding potential underflow when the page size exceeds the remaining region.