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Message-ID: <20160609004758.GA8658@grsecurity.net>
Date: Wed, 8 Jun 2016 20:47:58 -0400
From: Brad Spengler <spender@...ecurity.net>
To: Kees Cook <keescook@...omium.org>
Cc: kernel-hardening@...ts.openwall.com, PaX Team <pageexec@...email.hu>,
Casey Schaufler <casey.schaufler@...el.com>,
Rik van Riel <riel@...hat.com>, Christoph Lameter <cl@...ux.com>,
Pekka Enberg <penberg@...nel.org>,
David Rientjes <rientjes@...gle.com>,
Joonsoo Kim <iamjoonsoo.kim@....com>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2 1/4] mm: Hardened usercopy
> diff --git a/mm/usercopy.c b/mm/usercopy.c
> new file mode 100644
> index 000000000000..e09c33070759
> --- /dev/null
> +++ b/mm/usercopy.c
> @@ -0,0 +1,177 @@
> +/*
> + * This implements the various checks for CONFIG_HARDENED_USERCOPY*,
> + * which are designed to protect kernel memory from needless exposure
> + * and overwrite under many conditions.
> + */
As this is a new file being introduced which is (modulo some bikeshedding
and addition of a few comments) a direct copy+paste of our code and comments
in fs/exec.c, I would appreciate both a GPL notice (the same as exists for
KASAN, etc) and both the PaX Team and myself being listed as the copyright
owners.
-Brad
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