From: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Date: Mon, 9 Jan 2017 15:53:36 +0000 (+0700)
Subject: i2c: fix kernel memory disclosure in dev interface
X-Git-Tag: v3.2.87~91
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4829b2f4eba6394081a1c98e18be8e4f3ebaba44;p=pandora-kernel.git

i2c: fix kernel memory disclosure in dev interface

commit 30f939feaeee23e21391cfc7b484f012eb189c3c upstream.

i2c_smbus_xfer() does not always fill an entire block, allowing
kernel stack memory disclosure through the temp variable. Clear
it before it's read to.

Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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