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Date: Wed, 9 Oct 2019 22:02:43 -0700
From: Yizhuo Zhai <yzhai003@....edu>
To: Johannes Berg <johannes.berg@...el.com>,
Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
Luca Coelho <luciano.coelho@...el.com>,
Intel Linux Wireless <linuxwifi@...el.com>,
Kalle Valo <kvalo@...eaurora.org>,
"David S. Miller" <davem@...emloft.net>,
Avigail Grinstein <avigail.grinstein@...el.com>,
Haim Dreyfuss <haim.dreyfuss@...el.com>,
linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Potential NULL pointer deference in iwlwifi: mvm
Hi All:
drivers/net/wireless/intel/iwlwifi/mvm/power.c:
The function iwl_mvm_vif_from_mac80211() could return NULL,
but some callers in this file does not check the return value while
directly dereference it, which seems potentially unsafe.
Such callers include iwl_mvm_update_d0i3_power_mode(),
iwl_mvm_power_configure_uapsd(),
iwl_mvm_power_allow_uapsd(), etc.
--
Kind Regards,
Yizhuo Zhai
Computer Science, Graduate Student
University of California, Riverside
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