Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> wrote: > ieee80211_find_sta_by_ifaddr() must be called under the RCU lock and > the resulting pointer is only valid under RCU lock as well. > > Fix ath10k_wmi_tlv_op_pull_peer_stats_info() to hold RCU lock before it > calls ieee80211_find_sta_by_ifaddr() and release it when the resulting > pointer is no longer needed. > > This problem was found while reviewing code to debug RCU warn from > ath10k_wmi_tlv_parse_peer_stats_info(). > > Link: https://lore.kernel.org/linux-wireless/7230c9e5-2632-b77e-c4f9-10eca557a5bb@xxxxxxxxxxxxxxxxxxx/ > Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. 09078368d516 ath10k: hold RCU lock when calling ieee80211_find_sta_by_ifaddr() -- https://patchwork.kernel.org/project/linux-wireless/patch/20210210212107.40373-1-skhan@xxxxxxxxxxxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
