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| author | Jakub Kicinski <kuba@kernel.org> | 2021-03-24 18:11:58 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-25 16:46:53 -0700 |
| commit | d3b37fc805d9ef697451730ebdfc7e35e6c2ace8 (patch) | |
| tree | 6a278dde025950740c93261759564512b1f6662f /net/ethtool | |
| parent | 240e114411e74d2ee8121643e0c67717eb7c6982 (diff) | |
| download | linux-d3b37fc805d9ef697451730ebdfc7e35e6c2ace8.tar.bz2 | |
ethtool: fec: sanitize ethtool_fecparam->active_fec
struct ethtool_fecparam::active_fec is a GET-only field,
all in-tree drivers correctly ignore it on SET. Clear
the field on SET to avoid any confusion. Again, we can't
reject non-zero now since ethtool user space does not
zero-init the param correctly.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethtool')
| -rw-r--r-- | net/ethtool/ioctl.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index be3549023d89..237ffe5440ef 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -2586,6 +2586,7 @@ static int ethtool_set_fecparam(struct net_device *dev, void __user *useraddr) if (copy_from_user(&fecparam, useraddr, sizeof(fecparam))) return -EFAULT; + fecparam.active_fec = 0; fecparam.reserved = 0; return dev->ethtool_ops->set_fecparam(dev, &fecparam); |