net: ethtool: copy input_xfrm to user-space in ethtool_get_rxfh

The ioctl path of ethtool's get channels is missing the final step of
copying the new input_xfrm field to user-space. This should have been
part of [1].

Link: https://lore.kernel.org/netdev/20231213003321.605376-1-ahmed.zaki@intel.com/
Fixes: 13e59344fb9d ("net: ethtool: add support for symmetric-xor RSS hash")
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Link: https://lore.kernel.org/r/20231221184235.9192-2-ahmed.zaki@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index 86d47425038b9a84c50f4e103f7201601d5b1ab5..9adc240b8f0eb0ce9858c174e9592b93a4d5341a 100644 (file)
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -1251,6 +1251,11 @@ static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
        if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, hfunc),
                         &rxfh_dev.hfunc, sizeof(rxfh.hfunc))) {
                ret = -EFAULT;
+       } else if (copy_to_user(useraddr +
+                               offsetof(struct ethtool_rxfh, input_xfrm),
+                               &rxfh_dev.input_xfrm,
+                               sizeof(rxfh.input_xfrm))) {
+               ret = -EFAULT;
        } else if (copy_to_user(useraddr +
                              offsetof(struct ethtool_rxfh, rss_config[0]),
                              rss_config, total_size)) {