1 files changed, 3 insertions, 0 deletions

diff --git a/net/wireless/core.c b/net/wireless/core.c
index a6f3cac8c640..c0fd8a85e7f7 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -95,6 +95,9 @@ static int cfg80211_dev_check_name(struct cfg80211_registered_device *rdev,
 
         ASSERT_RTNL();
 
+        if (strlen(newname) > NL80211_WIPHY_NAME_MAXLEN)
+                return -EINVAL;
+
         /* prohibit calling the thing phy%d when %d is not its number */
         sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken);
         if (taken == strlen(newname) && wiphy_idx != rdev->wiphy_idx) {