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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2016-10-13 11:45:28 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-10-13 12:12:04 -0400 |
| commit | 775f4f05501b3e36550ab63a592de3abd02e7591 (patch) | |
| tree | 8d0a411f4161bef506a355fa8605afdcc60bc8f4 | |
| parent | 7307616245babb12c923151d8ef69af02e46c255 (diff) | |
| download | linux-775f4f05501b3e36550ab63a592de3abd02e7591.tar.gz linux-775f4f05501b3e36550ab63a592de3abd02e7591.tar.bz2 linux-775f4f05501b3e36550ab63a592de3abd02e7591.zip | |
net: rtnl: info leak in rtnl_fill_vfinfo()
The "vf_vlan_info" struct ends with a 2 byte struct hole so we have to
memset it to ensure that no stack information is revealed to user space.
Fixes: 79aab093a0b5 ('net: Update API for VF vlan protocol 802.1ad support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/rtnetlink.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index b06d2f46b83e..fb7348f13501 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -1144,6 +1144,8 @@ static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb, if (dev->netdev_ops->ndo_get_vf_config(dev, vfs_num, &ivi)) return 0; + memset(&vf_vlan_info, 0, sizeof(vf_vlan_info)); + vf_mac.vf = vf_vlan.vf = vf_vlan_info.vf = |