1 files changed, 5 insertions, 0 deletions

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index a29b43d0b450..0133b5ebd545 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -323,6 +323,11 @@ static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
                 bytes_remaining -= eeprom.len;
         }
 
+        eeprom.len = userbuf - (useraddr + sizeof(eeprom));
+        eeprom.offset -= eeprom.len;
+        if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
+                ret = -EFAULT;
+
         kfree(data);
         return ret;
 }