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| author |   Xingyuan Mo <hdthky0@gmail.com> | 2023-12-17 13:29:01 +0200 |
|---|---|---|
| committer |   Kalle Valo <quic_kvalo@quicinc.com> | 2023-12-18 20:41:00 +0200 |
| commit | ad25ee36f00172f7d53242dc77c69fff7ced0755 (patch) | |
| tree | 5efd9d5ec48c58b226a150d0211ec0da43667488 /drivers/net/wireless/ath/ath10k/wmi-tlv.c | |
| parent | Merge tag 'ath-next-20231215' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath (diff) | |
| download | linux-ad25ee36f00172f7d53242dc77c69fff7ced0755.tar.xz linux-ad25ee36f00172f7d53242dc77c69fff7ced0755.zip | |
wifi: ath10k: fix NULL pointer dereference in ath10k_wmi_tlv_op_pull_mgmt_tx_compl_ev()
We should check whether the WMI_TLV_TAG_STRUCT_MGMT_TX_COMPL_EVENT tlv is
present before accessing it, otherwise a null pointer deference error will
occur.
Fixes: dc405152bb64 ("ath10k: handle mgmt tx completion event")
Signed-off-by: Xingyuan Mo <hdthky0@gmail.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20231208043433.271449-1-hdthky0@gmail.com
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/wmi-tlv.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/wmi-tlv.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c index 6b6aa3c36744..0ce08e9a0a3d 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c @@ -851,6 +851,10 @@ ath10k_wmi_tlv_op_pull_mgmt_tx_compl_ev(struct ath10k *ar, struct sk_buff *skb, } ev = tb[WMI_TLV_TAG_STRUCT_MGMT_TX_COMPL_EVENT]; + if (!ev) { + kfree(tb); + return -EPROTO; + } arg->desc_id = ev->desc_id; arg->status = ev->status; |