On Wed, Feb 23, 2022 at 09:43:32PM -0800, Kees Cook wrote: > Adds simple KUnit test for some binfmt_elf internals: specifically a > regression test for the problem fixed by commit 8904d9cd90ee ("ELF: > fix overflow in total mapping size calculation"). This can be tested by small 2 segment program run from userspace. Make 2 segments, swap them, and see executable rejected because mmap gets too big an area. PT_ALEXEY