linux-kernel - Re: [oss-security] Bluetooth: l2cap and rfcomm: fix 1 byte infoleak to userspace.

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Message-ID: <20110509143132.GA11358@albatros>
Date:	Mon, 9 May 2011 18:31:32 +0400
From:	Vasiliy Kulikov <segoon@...nwall.com>
To:	Filip Palian <s3810@...stk.edu.pl>
Cc:	Marcel Holtmann <marcel@...tmann.org>,
	"Gustavo F. Padovan" <padovan@...fusion.mobi>,
	"David S. Miller" <davem@...emloft.net>,
	linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, security@...nel.org
Subject: Re: [oss-security] Bluetooth: l2cap and rfcomm: fix 1 byte
 infoleak to userspace.

On Sun, May 08, 2011 at 21:57 +0200, Filip Palian wrote:
> Structures "l2cap_conninfo" and "rfcomm_conninfo" have one padding
> byte each. This byte in "cinfo" is copied to userspace uninitialized.

Your mail client mangles the patch, it should contain original
identation tabs, not spaces.  Please see Documentation/email-clients.txt.

> patch no.1:

Don't send 2 patches as one email.  Either send 2 email or merge them
into one patch (if they are similar changes).  You'll ease maintainers'
work.

> Found by Marek Kroemeke and Filip Palian.

Please see Documentation/SubmittingPatches, chapter 12 to find out how
to sign the patch.

And please don't crosspost to oss-security and LKML - send a separate
email to o-s with a short description of a bug and a link to the LKML
thread.  LKML thread is a place to argue and discuss the solution, but
o-s subscribers are probably not interested in such a discussion.

Thanks,

-- 
Vasiliy Kulikov
http://www.openwall.com - bringing security into open computing environments

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