2.6.38-stable review patch. If anyone has any objections, please let us know.
------------------ From: Eric Dumazet <[email protected]> commit e14a599335427f81bbb0008963e59aa9c6449dce upstream. Commit 443457242beb (factorize sync-rcu call in unregister_netdevice_many) mistakenly removed one test from dev_close() Following actions trigger a BUG : modprobe bonding modprobe dummy ifconfig bond0 up ifenslave bond0 dummy0 rmmod dummy dev_close() must not close a non IFF_UP device. With help from Frank Blaschka and Einar EL Lueck Reported-by: Frank Blaschka <[email protected]> Reported-by: Einar EL Lueck <[email protected]> Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- net/core/dev.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1332,11 +1332,13 @@ int dev_close_many(struct list_head *hea */ int dev_close(struct net_device *dev) { - LIST_HEAD(single); + if (dev->flags & IFF_UP) { + LIST_HEAD(single); - list_add(&dev->unreg_list, &single); - dev_close_many(&single); - list_del(&single); + list_add(&dev->unreg_list, &single); + dev_close_many(&single); + list_del(&single); + } return 0; } EXPORT_SYMBOL(dev_close); _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
