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authorThomas Huehn <thomas@net.t-labs.tu-berlin.de>2012-07-18 00:16:13 +0400
committerJohn W. Linville <linville@tuxdriver.com>2012-07-26 23:37:57 +0400
commit4581d91b7717152001192112027596fbdeec06f6 (patch)
treeeca9850ffb94a18ed2b2bf3271823b1b48593eef /drivers/net/wireless/mac80211_hwsim.c
parentc297977ec18deb36b2c0a5ee57101f7ab736ec00 (diff)
downloadlinux-4581d91b7717152001192112027596fbdeec06f6.tar.xz
mac80211_hwsim: fix possible race condition in usage of info->control.sta & control.vif
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 <thomas@net.t-labs.tu-berlin.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
-rw-r--r--drivers/net/wireless/mac80211_hwsim.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 643f968b05ee..00838395778c 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -739,11 +739,6 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
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);
/* frame was transmitted at most favorable rate at first attempt */