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ogsf: fix possible overflow errors in gvld module #4637

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@ymdatta ymdatta commented Nov 1, 2024

This is similar to #4635.

We were doing (255 << 24) which causes integer overflow and positive number gets converted to negative number. We were then assigning this to an unsigned integer in multiple places, which does conversion in a different way.

For example: If we do unsigned int x = -20, UINT_MAX + 1 - 20 is assigned to x.

I do not think that's what is intended when we do
ktrans = (255 << 24). Fix instances of that, by using an unsigned int literal over int literal.

This issue was found using cppcheck tool.

We were doing `(255 << 24)` which causes integer overflow
and positive number gets converted to negative number. We
were then assigning this to an unsigned integer in multiple
places, which does conversion in a different way.

For example: If we do unsigned int x = -20, `UINT_MAX + 1 - 20`
is assigned to x.

I do not think that's what is intended when we do
`ktrans = (255 << 24)`. Fix instances of that, by using an
unsigned int literal over int literal.

This issue was found using cppcheck tool.

Signed-off-by: Mohan Yelugoti <[email protected]>
@github-actions github-actions bot added C Related code is in C libraries labels Nov 2, 2024
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