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Date: Thu, 24 Feb 2022 12:45:17 +0300 From: Alexey Dobriyan <adobriyan@...il.com> To: Kees Cook <keescook@...omium.org> Cc: Eric Biederman <ebiederm@...ssion.com>, David Gow <davidgow@...gle.com>, Magnus Groß <magnus.gross@...h-aachen.de>, kunit-dev@...glegroups.com, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org, linux-hardening@...r.kernel.org Subject: Re: [PATCH] binfmt_elf: Introduce KUnit test 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
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