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| author | Thomas Huehn <thomas@net.t-labs.tu-berlin.de> | 2012-07-13 20:52:24 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-07-17 11:42:08 +0200 |
| commit | b0e40e72be42153cd6473ca1fa69058a30adb2bb (patch) | |
| tree | 06ea78263fd7330630bc7db6848b1f812363862f /drivers/net/wireless/mac80211_hwsim.c | |
| parent | mac80211: fix tx-mgmt cookie value being left uninitialized (diff) | |
| download | linux-b0e40e72be42153cd6473ca1fa69058a30adb2bb.tar.xz linux-b0e40e72be42153cd6473ca1fa69058a30adb2bb.zip | |
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 <thomas@net.t-labs.tu-berlin.de>
[reword commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
| -rw-r--r-- | drivers/net/wireless/mac80211_hwsim.c | 5 |
1 files changed, 0 insertions, 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++) { |