From: nikolay@redhat.com <nikolay@redhat.com>
Date: Thu, 29 Nov 2012 01:37:59 +0000 (+0000)
Subject: bonding: fix race condition in bonding_store_slaves_active
X-Git-Tag: v3.2.36~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dba4bf75ea4ee734a7537f62817386bebc119413;p=pandora-kernel.git

bonding: fix race condition in bonding_store_slaves_active

[ Upstream commit e196c0e579902f42cf72414461fb034e5a1ffbf7 ]

Race between bonding_store_slaves_active() and slave manipulation
 functions. The bond_for_each_slave use in bonding_store_slaves_active()
 is not protected by any synchronization mechanism.
 NULL pointer dereference is easy to reach.
 Fixed by acquiring the bond->lock for the slave walk.

 v2: Make description text < 75 columns

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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