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Diffstat (limited to 'net/wireless/wext.c')
-rw-r--r--net/wireless/wext.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/net/wireless/wext.c b/net/wireless/wext.c
index 5b4a0cee4418..60fe57761ca9 100644
--- a/net/wireless/wext.c
+++ b/net/wireless/wext.c
@@ -470,7 +470,7 @@ static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
/*
* Get statistics out of the driver
*/
-static struct iw_statistics *get_wireless_stats(struct net_device *dev)
+struct iw_statistics *get_wireless_stats(struct net_device *dev)
{
/* New location */
if ((dev->wireless_handlers != NULL) &&
@@ -773,10 +773,13 @@ static int ioctl_standard_iw_point(struct iw_point *iwp, unsigned int cmd,
essid_compat = 1;
else if (IW_IS_SET(cmd) && (iwp->length != 0)) {
char essid[IW_ESSID_MAX_SIZE + 1];
+ unsigned int len;
+ len = iwp->length * descr->token_size;
- err = copy_from_user(essid, iwp->pointer,
- iwp->length *
- descr->token_size);
+ if (len > IW_ESSID_MAX_SIZE)
+ return -EFAULT;
+
+ err = copy_from_user(essid, iwp->pointer, len);
if (err)
return -EFAULT;