wlan0: BSS 50:50:50:50:50:50 switches to unsupported channel (0 MHz), disconnecting wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 ============================= WARNING: suspicious RCU usage 6.7.0-rc6-syzkaller-01873-g2ab1efad60ad #0 Not tainted ----------------------------- net/wireless/scan.c:1867 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 4 locks held by kworker/u4:12/7808: #0: ffff888013071938 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602 #1: ffffc900149ffd80 ((work_completion)(&rdev->wiphy_work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603 #2: ffff888045110768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5928 [inline] #2: ffff888045110768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: cfg80211_wiphy_work+0x2b/0x330 net/wireless/core.c:424 #3: ffff888045110168 (&rdev->bss_lock){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline] #3: ffff888045110168 (&rdev->bss_lock){+...}-{2:2}, at: cfg80211_inform_single_bss_frame_data+0x8e4/0x12c0 net/wireless/scan.c:3014 stack backtrace: CPU: 0 PID: 7808 Comm: kworker/u4:12 Not tainted 6.7.0-rc6-syzkaller-01873-g2ab1efad60ad #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: events_unbound cfg80211_wiphy_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106 lockdep_rcu_suspicious+0x20c/0x3b0 kernel/locking/lockdep.c:6712 __cfg80211_bss_update+0x17fb/0x25f0 net/wireless/scan.c:1867 cfg80211_inform_single_bss_frame_data+0x91e/0x12c0 net/wireless/scan.c:3015 cfg80211_inform_bss_frame_data+0x14c/0x340 net/wireless/scan.c:3050 __ieee80211_sta_join_ibss+0xcf3/0x1880 net/mac80211/ibss.c:376 ieee80211_sta_create_ibss+0x206/0x470 net/mac80211/ibss.c:1320 ieee80211_sta_find_ibss net/mac80211/ibss.c:1449 [inline] ieee80211_ibss_work+0xbbb/0x14c0 net/mac80211/ibss.c:1666 ieee80211_iface_work+0xbeb/0xda0 net/mac80211/iface.c:1665 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:437 process_one_work+0x886/0x15d0 kernel/workqueue.c:2627 process_scheduled_works kernel/workqueue.c:2700 [inline] worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781 kthread+0x2c6/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 wlan0: BSS 50:50:50:50:50:50 switches to unsupported channel (0 MHz), disconnecting wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan0: BSS 50:50:50:50:50:50 switches to unsupported channel (0 MHz), disconnecting wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50