Patrick McHardy bea1e22df4 IPoIB: Fix use-after-free of multicast object ... Fix a crash in ipoib_mcast_join_task(). (with help from Or Gerlitz) Commit c8c2afe360 ("IPoIB: Use rtnl lock/unlock when changing device flags") added a call to rtnl_lock() in ipoib_mcast_join_task(), which is run from the ipoib_workqueue, and hence the workqueue can't be flushed from the context of ipoib_stop(). In the current code, ipoib_stop() (which doesn't flush the workqueue) calls ipoib_mcast_dev_flush(), which goes and deletes all the multicast entries. This takes place without any synchronization with a possible running instance of ipoib_mcast_join_task() for the same ipoib device, leading to a crash due to NULL pointer dereference. Fix this by making sure that the workqueue is flushed before ipoib_mcast_dev_flush() is called. To make that possible, we move the RTNL-lock wrapped code to ipoib_mcast_join_finish(). Signed-off-by: Patrick McHardy <kaber@trash.net> Cc: <stable@vger.kernel.org> Signed-off-by: Roland Dreier <roland@purestorage.com>		2012-09-30 20:32:33 -07:00
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ipoib	IPoIB: Fix use-after-free of multicast object	2012-09-30 20:32:33 -07:00
iser	IB/iser: Fix error flow in iser ep connection establishment	2012-05-18 17:05:31 -07:00
srp	IB/srp: Fix a race condition	2012-08-15 12:00:48 -07:00
srpt	IB: Fix typos in infiniband drivers	2012-08-15 11:56:19 -07:00