linux-kernel - Re: [PATCH] Smack: IPv6 casting error fix for 3.11

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Date:	Mon, 5 Aug 2013 13:43:37 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Casey Schaufler <casey@...aufler-ca.com>
Cc:	James Morris <jmorris@...ei.org>,
	LKLM <linux-kernel@...r.kernel.org>,
	LSM <linux-security-module@...r.kernel.org>
Subject: Re: [PATCH] Smack: IPv6 casting error fix for 3.11

Why does this have the (largely same) commit message twice?

                Linus

On Mon, Aug 5, 2013 at 1:21 PM, Casey Schaufler <casey@...aufler-ca.com> wrote:
> Subject: [PATCH] Smack: IPv6 casting error fix for 3.11
>
> The original implementation of the Smack IPv6 port based
> local controls works most of the time using a sockaddr as
> a temporary variable, but not always as it overflows in
> some circumstances. The correct data is a sockaddr_in6.
> A struct sockaddr isn't as large as a struct sockaddr_in6.
> There would need to be casting one way or the other. This
> patch gets it the right way.
>
> This problem required some effort to make occur in development
> with 3.10, but hits every time in 3.11. This patch should go
> into 3.11.
>
> Signed-off-by: Casey Schaufler <casey@...aufler-ca.com>
>
> ---
> Subject: [PATCH] Smack: IPv6 casting error fix
>
> The original implementation of the Smack IPv6 port based
> local controls works most of the time using a sockaddr as
> a temporary variable, but not always as it overflows in
> some circumstances. The correct data is a sockaddr_in6.
> A struct sockaddr isn't as large as a struct sockaddr_in6.
> There would need to be casting one way or the other. This
> patch gets it the right way.
>
> Signed-off-by: Casey Schaufler <casey@...aufler-ca.com>
>
> ---
>  security/smack/smack_lsm.c |   24 +++++++++++-------------
>  1 files changed, 11 insertions(+), 13 deletions(-)
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