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mac80211: Drop frames from invalid MAC address in ad-hoc mode
[ Upstream commit a6555f8 ] WARNING: CPU: 1 PID: 9 at net/mac80211/sta_info.c:554 sta_info_insert_rcu+0x121/0x12a0 Modules linked in: CPU: 1 PID: 9 Comm: kworker/u8:1 Not tainted 5.14.0-rc7+ #253 Workqueue: phy3 ieee80211_iface_work RIP: 0010:sta_info_insert_rcu+0x121/0x12a0 ... Call Trace: ieee80211_ibss_finish_sta+0xbc/0x170 ieee80211_ibss_work+0x13f/0x7d0 ieee80211_iface_work+0x37a/0x500 process_one_work+0x357/0x850 worker_thread+0x41/0x4d0 If an Ad-Hoc node receives packets with invalid source MAC address, it hits a WARN_ON in sta_info_insert_check(), this can spam the log. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20210827144230.39944-1-yuehaibing@huawei.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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