On Wed, 18 Mar 2026 09:02:43 +0900
Masami Hiramatsu (Google) [off-list ref] wrote:
Yes, that is checked in vsnprintf(), not its caller.
I think linux kernel should ensure the the return value is smaller
than INT_MAX, and return -EOVERFLOW if not.
Well, there's very few places that could have a buffer size of > 2G.
What's the max bootconfig limit? Could you create a bootconfig that is
greater than 2G?
If not, then yeah, we shouldn't really care about overflows (and that
includes not worrying about typecasting the size variable to int).
-- Steve