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
..
ipoib_cm.c	IB/ipoib: Add missing locking when CM object is deleted	2012-08-14 15:21:44 -07:00
ipoib_ethtool.c	net: infiniband/ulp/ipoib: convert to hw_features	2011-04-20 01:30:42 -07:00
ipoib_fs.c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
ipoib_ib.c	IPoIB: fix skb truesize underestimatiom	2012-07-10 23:33:12 -07:00
ipoib_main.c	IPoIB: Fix use-after-free of multicast object	2012-09-30 20:32:33 -07:00
ipoib_multicast.c	IPoIB: Fix use-after-free of multicast object	2012-09-30 20:32:33 -07:00
ipoib_verbs.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
ipoib_vlan.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
ipoib.h	IPoIB: Fix AB-BA deadlock when deleting neighbours	2012-09-12 09:21:45 -07:00
Kconfig	kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT	2011-01-20 17:02:05 -08:00
Makefile	IPoIB: Add basic ethtool support	2008-04-16 21:09:32 -07:00