"mac" is an array allocated in stack without being initialized, and will be sent out via "nla_put". The dump_station() is supposed to initialize the mac address; otherwise, sensitive data in kernel stack will be leaked. To fix this, initialize it with memset or fill it with meaningful mac address.
Signed-off-by: Kangjie Lu <[email protected]> --- drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 448a5c8..44c1356 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -1797,6 +1797,7 @@ static int dump_station(struct wiphy *wiphy, struct net_device *dev, wilc_get_rssi(vif, &sinfo->signal); + memset(mac, 0, ETH_ALEN); return 0; } -- 1.9.1
