From: Philipp Reisner <philipp.reisner@linbit.com>
Date: Wed, 28 Mar 2012 08:17:32 +0000 (+0200)
Subject: drbd: Ensure that data_size is not 0 before using data_size-1 as index
X-Git-Tag: v3.5-rc1~41^2^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5de738272e38f7051c7a44c42631b71a0e2a1e80;p=pandora-kernel.git

drbd: Ensure that data_size is not 0 before using data_size-1 as index

This could be exploited by a peer which runs modified code.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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