diff options
| author | David S. Miller <davem@davemloft.net> | 2017-07-19 13:33:24 -0700 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-09-10 16:36:01 -0400 |
| commit | cd701222d2d5445d041bcfc21d3136c6e6c8f346 (patch) | |
| tree | e96415a00de5d94840179c25acc9d7e17bc2bd6a /net | |
| parent | 0b3294aae7bc3940a659928e352ffb0588dfeb54 (diff) | |
net: Zero terminate ifr_name in dev_ifname().
[ Upstream commit 63679112c536289826fec61c917621de95ba2ade ]
The ifr.ifr_name is passed around and assumed to be NULL terminated.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/dev_ioctl.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c index b94b1d293506..151e047ce072 100644 --- a/net/core/dev_ioctl.c +++ b/net/core/dev_ioctl.c @@ -28,6 +28,7 @@ static int dev_ifname(struct net *net, struct ifreq __user *arg) if (copy_from_user(&ifr, arg, sizeof(struct ifreq))) return -EFAULT; + ifr.ifr_name[IFNAMSIZ-1] = 0; error = netdev_get_name(net, ifr.ifr_name, ifr.ifr_ifindex); if (error) |