1 files changed, 7 insertions, 0 deletions

diff --git a/net/wireless/wext.c b/net/wireless/wext.c
index 22378daceb94..252c2010c2e2 100644
--- a/net/wireless/wext.c
+++ b/net/wireless/wext.c
@@ -820,6 +820,13 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
                         err = -EFAULT;
                         goto out;
                 }
+
+                if (cmd == SIOCSIWENCODEEXT) {
+                        struct iw_encode_ext *ee = (void *) extra;
+
+                        if (iwp->length < sizeof(*ee) + ee->key_len)
+                                return -EFAULT;
+                }
         }
 
         err = handler(dev, info, (union iwreq_data *) iwp, extra);