diff options
| author | Gao feng <gaofeng@cn.fujitsu.com> | 2013-01-31 16:31:00 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-02-04 13:12:16 -0500 |
| commit | 387ff91184fc03e4b8c5818e8ef2928434bcee6d (patch) | |
| tree | a7e03a43de2ce9740eda716289fdbf65689b1e7a /drivers/net/bonding | |
| parent | e4d343ea92bdce831f071d9706b2daf097e6d009 (diff) | |
| download | linux-387ff91184fc03e4b8c5818e8ef2928434bcee6d.tar.bz2 | |
netns: bond: allow unprivileged users to control bond device
reduce the permission check of bond device's ioctl.
allow the userns root to control the bond device.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding')
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index b38c9bf16dec..22399374b1e1 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3612,6 +3612,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd struct ifslave k_sinfo; struct ifslave __user *u_sinfo = NULL; struct mii_ioctl_data *mii = NULL; + struct net *net; int res = 0; pr_debug("bond_ioctl: master=%s, cmd=%d\n", bond_dev->name, cmd); @@ -3678,10 +3679,12 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd break; } - if (!capable(CAP_NET_ADMIN)) + net = dev_net(bond_dev); + + if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) return -EPERM; - slave_dev = dev_get_by_name(dev_net(bond_dev), ifr->ifr_slave); + slave_dev = dev_get_by_name(net, ifr->ifr_slave); pr_debug("slave_dev=%p:\n", slave_dev); |