From: Sasha Levin <sasha.levin@oracle.com>
Date: Thu, 4 Dec 2014 00:25:05 +0000 (-0500)
Subject: time: adjtimex: Validate the ADJ_FREQUENCY values
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~229^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e5aeb4367b450a28f447f6d5ab57d8f2ab16a5f;p=pandora-kernel.git

time: adjtimex: Validate the ADJ_FREQUENCY values

Verify that the frequency value from userspace is valid and makes sense.

Unverified values can cause overflows later on.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
[jstultz: Fix up bug for negative values and drop redunent cap check]
Signed-off-by: John Stultz <john.stultz@linaro.org>
---

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