From b0e40e72be42153cd6473ca1fa69058a30adb2bb Mon Sep 17 00:00:00 2001 From: Thomas Huehn Date: Fri, 13 Jul 2012 20:52:24 +0200 Subject: [PATCH] mac80211_hwsim: fix race condition with sta/vif pointers info->control.sta and control.vif may only be dereferenced during the drv_tx call otherwise could lead to use-after-free bugs. Signed-off-by: Thomas Huehn [reword commit message] Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 3f38d846b093..826ac7bec73f 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -1540,11 +1540,6 @@ static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2, /* now send back TX status */ txi = IEEE80211_SKB_CB(skb); - if (txi->control.vif) - hwsim_check_magic(txi->control.vif); - if (txi->control.sta) - hwsim_check_sta_magic(txi->control.sta); - ieee80211_tx_info_clear_status(txi); for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { -- 2.34.1