On Mon, Jan 17, 2022 at 4:30 PM Hector Martin [off-list ref] wrote:

If boardrev is missing from the NVRAM we add a default one, but this
might need more space in the output buffer than was allocated. Ensure
we have enough padding for this in the buffer.

Do you know this ahead (before allocation happens)?
If yes, the size change should happen conditionally.

Alternatively, krealloc() may be used.

-- 
With Best Regards,
Andy Shevchenko