From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 27 May 2015 01:29:26 +0000 (+0930)
Subject: lguest: fix out-by-one error in address checking.
X-Git-Tag: omap-for-v4.2/wakeirq-drivers-v2^2~2^2~51
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83a35114d0e4583e6b0ca39502e68b6a92e2910c;p=pandora-kernel.git

lguest: fix out-by-one error in address checking.

This bug has been there since day 1; addresses in the top guest physical
page weren't considered valid.  You could map that page (the check in
check_gpte() is correct), but if a guest tried to put a pagetable there
we'd check that address manually when walking it, and kill the guest.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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