------------[ cut here ]------------ WARNING: CPU: 1 PID: 205 at net/mac80211/sta_info.c:547 sta_info_insert_check+0x48/0xc4 net/mac80211/sta_info.c:547 Modules linked in: CPU: 1 PID: 205 Comm: kworker/u4:5 Not tainted 5.11.0-rc5-syzkaller-00040-g76c057c84d28 #0 Hardware name: linux,dummy-virt (DT) Workqueue: phy21 ieee80211_iface_work pstate: 40400009 (nZcv daif +PAN -UAO -TCO BTYPE=--) pc : sta_info_insert_check+0x48/0xc4 net/mac80211/sta_info.c:547 lr : sta_info_insert_rcu+0x34/0x90 net/mac80211/sta_info.c:725 sp : ffff8000140f3bf0 x29: ffff8000140f3bf0 x28: f6ff000004010000 x27: f9ff00000c538998 x26: dead000000000100 x25: dead000000000122 x24: f9ff00000c539340 x23: f9ff00000c539280 x22: f9ff000022dc0800 x21: f9ff000022dc0db0 x20: f9ff00000c538940 x19: f3ff000022c24000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 00005ab199c9e82c x14: f3ff000022c06898 x13: 000000000000044b x12: f9ff00000c538940 x11: 000000000000000c x10: 0000000000000000 x9 : f9ff000022dc3b50 x8 : 0000000000000fff x7 : 0000000000000000 x6 : f9ff00000c538940 x5 : 0000000000000fff x4 : 0000000000000000 x3 : 0000000000000000 x2 : 00000000ffeeffff x1 : 00000000ffffffff x0 : 00000000ffeefdf7 Call trace: sta_info_insert_check+0x48/0xc4 net/mac80211/sta_info.c:547 sta_info_insert_rcu+0x34/0x90 net/mac80211/sta_info.c:725 ieee80211_ibss_finish_sta+0x84/0x140 net/mac80211/ibss.c:592 ieee80211_ibss_work+0xe4/0x560 net/mac80211/ibss.c:1700 ieee80211_iface_work+0x2b8/0x33c net/mac80211/iface.c:1445 process_one_work+0x1d8/0x360 kernel/workqueue.c:2275 worker_thread+0x74/0x440 kernel/workqueue.c:2421 kthread+0x178/0x180 kernel/kthread.c:292 ret_from_fork+0x10/0x30 arch/arm64/kernel/entry.S:958