wlan1: authenticated wlan1: associate with 08:02:11:00:00:00 (try 1/3) wlan1: RX AssocResp from 08:02:11:00:00:00 (capab=0x1 status=0 aid=1) wlan1: associated wlan1: cannot understand ECSA IE operating class, 61, ignoring wlan1: cannot understand ECSA IE operating class, 61, ignoring ------------[ cut here ]------------ WARNING: CPU: 0 PID: 12 at net/wireless/scan.c:1666 rb_insert_bss net/wireless/scan.c:1666 [inline] WARNING: CPU: 0 PID: 12 at net/wireless/scan.c:1666 cfg80211_rehash_bss+0x1e6/0x540 net/wireless/scan.c:1723 Modules linked in: CPU: 0 UID: 0 PID: 12 Comm: kworker/u4:0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:rb_insert_bss net/wireless/scan.c:1666 [inline] RIP: 0010:cfg80211_rehash_bss+0x1e6/0x540 net/wireless/scan.c:1723 Code: e8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 33 03 00 00 ff 45 00 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 90 <0f> 0b 90 4c 8b 2c 24 4c 89 ef e8 db 6d f8 f9 84 c0 74 78 e8 12 1c RSP: 0018:ffffc900001e6f00 EFLAGS: 00010246 RAX: ffffffff8a9bf905 RBX: 0000000000000000 RCX: 0000000000000002 RDX: ffff88801bef4900 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88803f7fcc68 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000002 R11: 0000000000000002 R12: ffff8880358c01a0 R13: ffff88803f7fc030 R14: dffffc0000000000 R15: ffff88803f888c20 FS: 0000000000000000(0000) GS:ffff88808d732000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005562faef6000 CR3: 0000000041a42000 CR4: 0000000000352ef0 Call Trace: cfg80211_update_assoc_bss_entry+0x3fa/0x6a0 net/wireless/scan.c:3476 cfg80211_ch_switch_notify+0x3d1/0x790 net/wireless/nl80211.c:20961 ieee80211_sta_process_chanswitch+0xac8/0x2850 net/mac80211/mlme.c:-1 ieee80211_rx_mgmt_beacon+0x1d04/0x3180 net/mac80211/mlme.c:7568 ieee80211_sta_rx_queued_mgmt+0x4ed/0x44e0 net/mac80211/mlme.c:8138 ieee80211_iface_process_skb net/mac80211/iface.c:1691 [inline] ieee80211_iface_work+0x652/0x12d0 net/mac80211/iface.c:1748 cfg80211_wiphy_work+0x2bb/0x470 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245