From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 21 Jun 2014 05:01:41 +0000 (-0700)
Subject: lz4: ensure length does not wrap
X-Git-Tag: omap-for-v3.17/soc-cleanup~55^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=206204a1162b995e2185275167b22468c00d6b36;p=pandora-kernel.git

lz4: ensure length does not wrap

Given some pathologically compressed data, lz4 could possibly decide to
wrap a few internal variables, causing unknown things to happen.  Catch
this before the wrapping happens and abort the decompression.

Reported-by: "Don A. Bailey" <donb@securitymouse.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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