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wan: Missing capability checks in sbni_ioctl() 

There are missing capability checks in the following code:

1300 static int
1301 sbni_ioctl( struct net_device  *dev,  struct ifreq  *ifr,  int  cmd)
1302 {
[...]
1319     case  SIOCDEVRESINSTATS :
1320         if( current->euid != 0 )    /* root only */
1321             return  -EPERM;
[...]
1336     case  SIOCDEVSHWSTATE :
1337         if( current->euid != 0 )    /* root only */
1338             return  -EPERM;
[...]
1357     case  SIOCDEVENSLAVE :
1358         if( current->euid != 0 )    /* root only */
1359             return  -EPERM;
[...]
1372     case  SIOCDEVEMANSIPATE :
1373         if( current->euid != 0 )    /* root only */
1374             return  -EPERM;

Here's my proposed fix:

Missing capability checks.

Signed-off-by: Eugene Teo <eugeneteo@kernel.sg>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eugene Teo 2008-08-27 04:50:30 -07:00 committed by David S. Miller
parent 6c36810a73
commit f2455eb176
1 changed files with 4 additions and 4 deletions
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8
drivers/net/wan/sbni.c
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@ -1317,7 +1317,7 @@ sbni_ioctl( struct net_device *dev, struct ifreq *ifr, int cmd )
break;
case SIOCDEVRESINSTATS :
if( current->euid != 0 ) /* root only */
if (!capable(CAP_NET_ADMIN))
return -EPERM;
memset( &nl->in_stats, 0, sizeof(struct sbni_in_stats) );
break;
@ -1334,7 +1334,7 @@ sbni_ioctl( struct net_device *dev, struct ifreq *ifr, int cmd )
break;
case SIOCDEVSHWSTATE :
if( current->euid != 0 ) /* root only */
if (!capable(CAP_NET_ADMIN))
return -EPERM;
spin_lock( &nl->lock );
@ -1355,7 +1355,7 @@ sbni_ioctl( struct net_device *dev, struct ifreq *ifr, int cmd )
#ifdef CONFIG_SBNI_MULTILINE
case SIOCDEVENSLAVE :
if( current->euid != 0 ) /* root only */
if (!capable(CAP_NET_ADMIN))
return -EPERM;
if (copy_from_user( slave_name, ifr->ifr_data, sizeof slave_name ))
@ -1370,7 +1370,7 @@ sbni_ioctl( struct net_device *dev, struct ifreq *ifr, int cmd )
return enslave( dev, slave_dev );
case SIOCDEVEMANSIPATE :
if( current->euid != 0 ) /* root only */
if (!capable(CAP_NET_ADMIN))
return -EPERM;
return emancipate( dev );