1 files changed, 2 insertions, 0 deletions

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 369b41894527..3f79db1b612a 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1190,6 +1190,8 @@ static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
         if (!dev->ethtool_ops->flash_device)
                 return -EOPNOTSUPP;
 
+        efl.data[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
+
         return dev->ethtool_ops->flash_device(dev, &efl);
 }