From: Tao Ma <boyu.mt@taobao.com>
Date: Mon, 17 Oct 2011 14:13:46 +0000 (-0400)
Subject: ext4: avoid stamping on other memories in ext4_ext_insert_index()
X-Git-Tag: v3.2-rc1~85^2~49
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f472e02669073e4f1a388142bafa0f806fae841c;p=pandora-kernel.git

ext4: avoid stamping on other memories in ext4_ext_insert_index()

Add a sanity check to make sure ix hasn't gone beyond the valid bounds
of the extent block.

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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