wifi: cfg80211: fix RCU dereference in __cfg80211_bss_update
authorEdward Adam Davis <eadavis@qq.com>
Wed, 3 Jan 2024 12:13:51 +0000 (20:13 +0800)
committerJohannes Berg <johannes.berg@intel.com>
Wed, 3 Jan 2024 14:34:53 +0000 (15:34 +0100)
commit1184950e341c11b6f82bc5b59564411d9537ab27
tree5863ebcce45ba02c482dfc78254a9101fc8ca5bf
parent968509128207f122d7177ffb6ff51c9c6fa7e13d
wifi: cfg80211: fix RCU dereference in __cfg80211_bss_update

Replace rcu_dereference() with rcu_access_pointer() since we hold
the lock here (and aren't in an RCU critical section).

Fixes: 32af9a9e1069 ("wifi: cfg80211: free beacon_ies when overridden from hidden BSS")
Reported-and-tested-by: syzbot+864a269c27ee06b58374@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Link: https://msgid.link/tencent_BF8F0DF0258C8DBF124CDDE4DD8D992DCF07@qq.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/wireless/scan.c