wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: 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 ============================= WARNING: suspicious RCU usage 6.7.0-rc5-syzkaller #0 Not tainted ----------------------------- net/wireless/scan.c:1875 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/u4:0/11: #0: ffff88810006ad38 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2602 #1: ffffc90000063e40 ((work_completion)(&rdev->wiphy_work)){+.+.}-{0:0}, at: process_one_work+0x247/0x710 kernel/workqueue.c:2602 #2: ffff888108ff8768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5928 [inline] #2: ffff888108ff8768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: cfg80211_wiphy_work+0x27/0x120 net/wireless/core.c:424 #3: ffff888108ff8168 (&rdev->bss_lock){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline] #3: ffff888108ff8168 (&rdev->bss_lock){+...}-{2:2}, at: cfg80211_inform_single_bss_frame_data+0x50d/0x8d0 net/wireless/scan.c:3012 stack backtrace: CPU: 0 PID: 11 Comm: kworker/u4:0 Not tainted 6.7.0-rc5-syzkaller #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+0x158/0x1e0 kernel/locking/lockdep.c:6712 __cfg80211_bss_update+0x8cc/0xcd0 net/wireless/scan.c:1875 cfg80211_inform_single_bss_frame_data+0x525/0x8d0 net/wireless/scan.c:3013 cfg80211_inform_bss_frame_data+0xb4/0x190 net/wireless/scan.c:3048 __ieee80211_sta_join_ibss+0x571/0x980 net/mac80211/ibss.c:376 ieee80211_sta_create_ibss+0xe7/0x1a0 net/mac80211/ibss.c:1320 ieee80211_sta_find_ibss net/mac80211/ibss.c:1449 [inline] ieee80211_ibss_work+0x547/0x8c0 net/mac80211/ibss.c:1666 ieee80211_iface_work+0x674/0x6e0 net/mac80211/iface.c:1665 cfg80211_wiphy_work+0x100/0x120 net/wireless/core.c:437 process_one_work+0x2c8/0x710 kernel/workqueue.c:2627 process_scheduled_works kernel/workqueue.c:2700 [inline] worker_thread+0x312/0x5c0 kernel/workqueue.c:2781 kthread+0x10f/0x150 kernel/kthread.c:388 ret_from_fork+0x45/0x50 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: 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: 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: 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: 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: 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