Re: [RFC PATCH v19 1/5] exec: Add a new AT_CHECK flag to execveat(2)

Florian Weimer <[email protected]> Mon, 08 Jul 2024 18:25:59 +0200
Newsgroups com.openwall.lists.kernel-hardening,org.kernel.vger.linux-api,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-integrity,org.kernel.vger.linux-kernel,org.kernel.vger.linux-security-module
Message-ID <[email protected]>
* Jeff Xu:

> Will dynamic linkers use the execveat(AT_CHECK) to check shared
> libraries too ?  or just the main executable itself.

I expect that dynamic linkers will have to do this for everything they
map.  Usually, that does not include the maim program, but this can
happen with explicit loader invocations (“ld.so /bin/true”).

Thanks,
Florian