From: Zheng Liu <wenqing.lz@taobao.com>
Date: Mon, 11 Mar 2013 00:48:59 +0000 (-0400)
Subject: ext4: avoid a potential overflow in ext4_es_can_be_merged()
X-Git-Tag: v3.9-rc4~16^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bd384364c1185ecb01f3b8242c915ccb5921c60d;p=pandora-kernel.git

ext4: avoid a potential overflow in ext4_es_can_be_merged()

Check the length of an extent to avoid a potential overflow in
ext4_es_can_be_merged().

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Dmitry Monakhov <dmonakhov@openvz.org>
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