[ OK ] Started OpenBSD Secure Shell server. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts. syzkaller login: [ 40.803438] IPVS: ftp: loaded support on port[0] = 21 [ 40.815304] IPVS: ftp: loaded support on port[0] = 21 [ 40.816277] IPVS: ftp: loaded support on port[0] = 21 [ 40.825097] IPVS: ftp: loaded support on port[0] = 21 [ 40.833261] IPVS: ftp: loaded support on port[0] = 21 [ 40.842806] IPVS: ftp: loaded support on port[0] = 21 [ 41.081917] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 41.163718] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.173075] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.192172] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 41.214935] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 41.245216] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 41.252099] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 41.260253] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.263443] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 41.273562] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.279901] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 41.288232] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 41.294829] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 41.296902] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.314731] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.322585] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.329696] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.353342] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 41.367396] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 41.384407] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.395397] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.408624] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 41.417276] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.425290] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.432906] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.439539] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.439645] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 41.458855] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 41.469794] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 41.484534] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 41.497751] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.506006] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.506099] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 41.522027] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 41.528738] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 41.536631] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.537736] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.543906] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 41.557529] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.557642] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program [ 41.567794] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.573433] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.582322] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.600593] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 41.608500] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.609671] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program executing program executing program [ 41.623034] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 41.630317] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 41.683895] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1850 [ 41.693306] in_atomic(): 0, irqs_disabled(): 0, pid: 23, name: kworker/u4:1 [ 41.700424] 4 locks held by kworker/u4:1/23: [ 41.704859] #0: 000000002e134673 ((wq_completion)"%s"wiphy_name(local->hw.wiphy)){+.+.}, at: process_one_work+0x767/0x1570 [ 41.716212] #1: 00000000563ef5db ((work_completion)(&sdata->work)){+.+.}, at: process_one_work+0x79c/0x1570 [ 41.726271] #2: 000000005a1492a7 (&wdev->mtx){+.+.}, at: ieee80211_ibss_work+0x85/0xe10 [ 41.734691] #3: 000000002d6c8209 (rcu_read_lock){....}, at: sta_info_insert_rcu+0x48e/0x2310 [ 41.743497] Preemption disabled at: [ 41.743529] [] rcu_lockdep_current_cpu_online+0x32/0x1b0 [ 41.754209] CPU: 1 PID: 23 Comm: kworker/u4:1 Not tainted 4.19.159-syzkaller #0 [ 41.761645] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.770992] Workqueue: phy8 ieee80211_iface_work [ 41.775738] Call Trace: [ 41.778323] dump_stack+0x1fc/0x2fe executing program [ 41.781943] ? rcu_lockdep_current_cpu_online+0x32/0x1b0 [ 41.787395] ___might_sleep.cold+0x235/0x250 [ 41.791812] sta_info_move_state+0x32/0x900 [ 41.796142] sta_info_free+0x55/0x390 [ 41.799941] sta_info_insert_rcu+0x517/0x2310 [ 41.804452] ? __local_bh_enable_ip+0x159/0x270 [ 41.809101] ? check_preemption_disabled+0x41/0x280 [ 41.814112] ? minstrel_ht_rate_update+0x40/0x40 [ 41.818860] ? rate_control_rate_init+0x2fa/0x4f0 [ 41.823742] ieee80211_ibss_finish_sta+0x25b/0x360 [ 41.828666] ? ieee80211_sta_join_ibss+0xe50/0xe50 [ 41.833591] ? mark_held_locks+0xa6/0xf0 [ 41.837643] ? __local_bh_enable_ip+0x159/0x270 [ 41.842312] ieee80211_ibss_work+0x2b6/0xe10 [ 41.846895] ? ieee80211_ibss_rx_queued_mgmt+0x18b0/0x18b0 [ 41.852514] ? mark_held_locks+0xa6/0xf0 [ 41.856569] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 41.861666] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.866257] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 41.871360] ieee80211_iface_work+0x7ba/0x8a0 [ 41.875855] process_one_work+0x864/0x1570 [ 41.880091] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 executing program [ 41.884768] worker_thread+0x64c/0x1130 [ 41.888748] ? process_one_work+0x1570/0x1570 [ 41.893243] kthread+0x33f/0x460 [ 41.896620] ? kthread_park+0x180/0x180 [ 41.900590] ret_from_fork+0x24/0x30 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program