From: Mathias Krause <minipli@googlemail.com>
Date: Tue, 19 Feb 2013 19:47:07 +0000 (+0100)
Subject: x86/apic: Fix parsing of the 'lapic' cmdline option
X-Git-Tag: v3.9-rc1~60^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=27cf929845b10043f2257693c7d179a9e0b1980e;p=pandora-kernel.git

x86/apic: Fix parsing of the 'lapic' cmdline option

Including " lapic " in the kernel cmdline on an x86-64 kernel
makes it panic while parsing early params -- e.g. with no user
visible output.

Fix this bug by ensuring arg is non-NULL before passing it to
strncmp().

Reported-by: PaX Team <pageexec@freemail.hu>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1361303227-13174-1-git-send-email-minipli@googlemail.com
Cc: stable@vger.kernel.org	# v3.8
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

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