--- /dev/null
+From b5e2f339865fb443107e5b10603e53bbc92dc054 Mon Sep 17 00:00:00 2001
+From: Dan Carpenter <dan.carpenter@oracle.com>
+Date: Tue, 29 Oct 2013 23:00:15 +0300
+Subject: staging: wlags49_h2: buffer overflow setting station name
+
+From: Dan Carpenter <dan.carpenter@oracle.com>
+
+commit b5e2f339865fb443107e5b10603e53bbc92dc054 upstream.
+
+We need to check the length parameter before doing the memcpy(). I've
+actually changed it to strlcpy() as well so that it's NUL terminated.
+
+You need CAP_NET_ADMIN to trigger these so it's not the end of the
+world.
+
+[XiuQi: Backported to 3.4: Adjust context]
+
+Reported-by: Nico Golde <nico@ngolde.de>
+Reported-by: Fabian Yamaguchi <fabs@goesec.de>
+Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/staging/wlags49_h2/wl_priv.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/wlags49_h2/wl_priv.c
++++ b/drivers/staging/wlags49_h2/wl_priv.c
+@@ -570,6 +570,7 @@ int wvlan_uil_put_info( struct uilreq *u
+ ltv_t *pLtv;
+ bool_t ltvAllocated = FALSE;
+ ENCSTRCT sEncryption;
++ size_t len;
+
+ #ifdef USE_WDS
+ hcf_16 hcfPort = HCF_PORT_0;
+@@ -686,7 +687,8 @@ int wvlan_uil_put_info( struct uilreq *u
+ break;
+ case CFG_CNF_OWN_NAME:
+ memset( lp->StationName, 0, sizeof( lp->StationName ));
+- memcpy( (void *)lp->StationName, (void *)&pLtv->u.u8[2], (size_t)pLtv->u.u16[0]);
++ len = min_t(size_t, pLtv->u.u16[0], sizeof(lp->StationName));
++ strlcpy(lp->StationName, &pLtv->u.u8[2], len);
+ pLtv->u.u16[0] = CNV_INT_TO_LITTLE( pLtv->u.u16[0] );
+ break;
+ case CFG_CNF_LOAD_BALANCING:
+@@ -1800,6 +1802,7 @@ int wvlan_set_station_nickname(struct ne
+ {
+ struct wl_private *lp = wl_priv(dev);
+ unsigned long flags;
++ size_t len;
+ int ret = 0;
+ /*------------------------------------------------------------------------*/
+
+@@ -1811,7 +1814,8 @@ int wvlan_set_station_nickname(struct ne
+
+ memset( lp->StationName, 0, sizeof( lp->StationName ));
+
+- memcpy( lp->StationName, extra, wrqu->data.length);
++ len = min_t(size_t, wrqu->data.length, sizeof(lp->StationName));
++ strlcpy(lp->StationName, extra, len);
+
+ /* Commit the adapter parameters */
+ wl_apply( lp );