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| author |  Peter Kosyh <pkosyh@yandex.ru>
| 2022-10-03 12:12:17 +0300 |
|---|---|---|
| committer |  Kalle Valo <quic_kvalo@quicinc.com>
| 2022-10-13 09:20:45 +0300 |
| commit | 473118917cc33b98510880458c724bd833653db6 (patch) | |
| tree | 7151a21412019e065d0e6da5295b06a975f1c1a9 /drivers/net/wireless/ath/ath10k | |
| parent | wifi: ath11k: Fix firmware crash on vdev delete race condition (diff) | |
| download | linux-473118917cc33b98510880458c724bd833653db6.tar.gz linux-473118917cc33b98510880458c724bd833653db6.tar.bz2 linux-473118917cc33b98510880458c724bd833653db6.zip | |
wifi: ath10k: Check return value of ath10k_get_arvif() in ath10k_wmi_event_tdls_peer()
Return value of a function ath10k_get_arvif() is dereferenced without
checking for null in ath10k_wmi_event_tdls_peer(), but it is usually checked
for this function.
Make ath10k_wmi_event_tdls_peer() do check retval of ath10k_get_arvif().
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Peter Kosyh <pkosyh@yandex.ru>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20221003091217.322598-1-pkosyh@yandex.ru
Diffstat (limited to 'drivers/net/wireless/ath/ath10k')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/wmi-tlv.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c index 876410a47d1d..6b6aa3c36744 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c @@ -584,7 +584,14 @@ static void ath10k_wmi_event_tdls_peer(struct ath10k *ar, struct sk_buff *skb) ath10k_warn(ar, "did not find station from tdls peer event"); goto exit; } + arvif = ath10k_get_arvif(ar, __le32_to_cpu(ev->vdev_id)); + if (!arvif) { + ath10k_warn(ar, "no vif for vdev_id %d found", + __le32_to_cpu(ev->vdev_id)); + goto exit; + } + ieee80211_tdls_oper_request( arvif->vif, station->addr, NL80211_TDLS_TEARDOWN, |