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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core	RDMA/ucma.c: Fix for events with wrong context on iWARP	2012-08-13 13:08:35 -07:00
hw	Merge branches 'cxgb4', 'ipoib', 'mlx4', 'ocrdma' and 'qib' into for-next	2012-09-14 10:42:52 -07:00
ulp	IPoIB: Fix use-after-free of multicast object	2012-09-30 20:32:33 -07:00
Kconfig	RDMA/ocrdma: Add driver for Emulex OneConnect IBoE RDMA adapter	2012-05-08 11:17:47 -07:00
Makefile	RDMA/ocrdma: Add driver for Emulex OneConnect IBoE RDMA adapter	2012-05-08 11:17:47 -07:00