diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ipmr.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 772daf77878..4198615ca67 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -141,7 +141,7 @@ struct net_device *ipmr_new_tunnel(struct vifctl *v) p.iph.ihl = 5; p.iph.protocol = IPPROTO_IPIP; sprintf(p.name, "dvmrp%d", v->vifc_vifi); - ifr.ifr_ifru.ifru_data = (void*)&p; + ifr.ifr_ifru.ifru_data = (__force void __user *)&p; oldfs = get_fs(); set_fs(KERNEL_DS); err = dev->do_ioctl(dev, &ifr, SIOCADDTUNNEL); @@ -954,10 +954,12 @@ int ip_mroute_setsockopt(struct sock *sk,int optname,char __user *optval,int opt #ifdef CONFIG_IP_PIMSM case MRT_PIM: { - int v, ret; + int v; + if (get_user(v,(int __user *)optval)) return -EFAULT; - v = (v)?1:0; + v = (v) ? 1 : 0; + rtnl_lock(); ret = 0; if (v != mroute_do_pim) { @@ -1659,6 +1661,7 @@ static struct vif_device *ipmr_vif_seq_idx(struct ipmr_vif_iter *iter, } static void *ipmr_vif_seq_start(struct seq_file *seq, loff_t *pos) + __acquires(mrt_lock) { read_lock(&mrt_lock); return *pos ? ipmr_vif_seq_idx(seq->private, *pos - 1) @@ -1682,6 +1685,7 @@ static void *ipmr_vif_seq_next(struct seq_file *seq, void *v, loff_t *pos) } static void ipmr_vif_seq_stop(struct seq_file *seq, void *v) + __releases(mrt_lock) { read_unlock(&mrt_lock); } |