diff options
| author | Michal Kazior <michal.kazior@tieto.com> | 2014-04-23 19:30:05 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2014-04-24 09:22:41 +0300 |
| commit | 2ab03a6b962eb9ff34846156b324eb411837b331 (patch) | |
| tree | 0465ea3c8005f2dc45e54e5ab82d4277470d1b42 /drivers | |
| parent | ec6bc5523b40008448bad5eadcdcf4cdbf9c7054 (diff) | |
| download | linux-stable-2ab03a6b962eb9ff34846156b324eb411837b331.tar.gz linux-stable-2ab03a6b962eb9ff34846156b324eb411837b331.tar.bz2 linux-stable-2ab03a6b962eb9ff34846156b324eb411837b331.zip | |
ath10k: make sure to not use invalid beacon pointer
If DMA mapping of next beacon failed it was
possible for next SWBA to access a pointer that
was already unmapped and freed. This could cause
memory corruption.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/wmi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index fe4d5f1c672f..11176cc6a2ad 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -1431,6 +1431,7 @@ static void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb) ATH10K_SKB_CB(arvif->beacon)->paddr, arvif->beacon->len, DMA_TO_DEVICE); dev_kfree_skb_any(arvif->beacon); + arvif->beacon = NULL; } ATH10K_SKB_CB(bcn)->paddr = dma_map_single(arvif->ar->dev, |