Re: LoadOptions handling in rhboot/shim fallback.c

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Mike Beaton <mjsbeaton@xxxxxxxxx> writes:

> Vitaly Kuznetsov has offered https://github.com/rhboot/shim/pull/611
> to fix the NVRAM entry generated by `add_boot_option(...)` in Shim's
> `fallback.c`.
>
> It is quite pervasive in that file to treat the size of the loaded
> image arguments as `StrLen(arguments) * 2` (just search for
> `StrLen(arguments)`, since `StrLen(arguments) * sizeof (CHAR16)` is
> also used) - so the issue identified in the PR affects
> `find_boot_option(...)` as well as add_boot_option(...)`.
>
> Additionally, while the PR does not currently address this,
> `image->LoadOptionsSize` should include the size of the `CHAR_NULL`
> terminator of `image->LoadOptions` (when `arguments` is non-empty), so
> I believe the `first_new_option_size` handling in the file needs
> updating in a similar manner too.

Indeed, let me update my MR accordingly. Thanks!

-- 
Vitaly
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