diff options
| -rw-r--r-- | net/ethtool/ioctl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index 237ffe5440ef..8797533ddc4b 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -2586,6 +2586,9 @@ static int ethtool_set_fecparam(struct net_device *dev, void __user *useraddr) if (copy_from_user(&fecparam, useraddr, sizeof(fecparam))) return -EFAULT; + if (!fecparam.fec || fecparam.fec & ETHTOOL_FEC_NONE_BIT) + return -EINVAL; + fecparam.active_fec = 0; fecparam.reserved = 0; |