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(parent: 6406426) | patch
net: use hlist_del_rcu() in dev_change_name()
authorEric Dumazet <eric.dumazet@gmail.com>
Tue, 17 May 2011 17:56:59 +0000 (13:56 -0400)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 3 Jun 2011 00:31:53 +0000 (09:31 +0900)
commit6fcd74f9528a56d6247454cf5cdc94706dddbb75
treef9317ca95512089c67ca535f181ca7108649ecadtree | snapshot
parent6406426e95eea9ccfcc8b15ac6613c8af438cffecommit | diff
net: use hlist_del_rcu() in dev_change_name()

[ Upstream commit 372b2312010bece1e36f577d6c99a6193ec54cbd ]

Using plain hlist_del() in dev_change_name() is wrong since a
concurrent reader can crash trying to dereference LIST_POISON1.

Bug introduced in commit 72c9528bab94 (net: Introduce
dev_get_by_name_rcu())

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
net/core/dev.c diff | blob | history
wrapfs-2.6.39.y