[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.225' (ECDSA) to the list of known hosts. 2020/11/18 08:43:03 fuzzer started 2020/11/18 08:43:03 connecting to host at 10.128.0.26:42139 2020/11/18 08:43:03 checking machine... 2020/11/18 08:43:03 checking revisions... 2020/11/18 08:43:03 testing simple program... syzkaller login: [ 64.937162][ T8482] IPVS: ftp: loaded support on port[0] = 21 [ 65.097584][ T8482] chnl_net:caif_netlink_parms(): no params data found [ 65.148213][ T8482] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.157173][ T8482] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.166628][ T8482] device bridge_slave_0 entered promiscuous mode [ 65.176196][ T8482] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.183410][ T8482] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.191266][ T8482] device bridge_slave_1 entered promiscuous mode [ 65.211539][ T8482] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.222938][ T8482] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.245631][ T8482] team0: Port device team_slave_0 added [ 65.253492][ T8482] team0: Port device team_slave_1 added [ 65.272984][ T8482] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.279982][ T8482] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 65.307727][ T8482] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.322889][ T8482] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.329856][ T8482] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 65.356754][ T8482] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.383743][ T8482] device hsr_slave_0 entered promiscuous mode [ 65.391335][ T8482] device hsr_slave_1 entered promiscuous mode [ 65.490965][ T8482] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.501627][ T8482] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.511722][ T8482] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.521033][ T8482] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.547259][ T8482] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.554612][ T8482] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.562616][ T8482] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.569839][ T8482] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.618383][ T8482] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.633030][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.644074][ T3005] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.653405][ T3005] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.662846][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.676316][ T8482] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.688969][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.698518][ T34] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.705662][ T34] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.722427][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.730914][ T34] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.738016][ T34] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.753776][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.763321][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.776123][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.790834][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.804750][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.816153][ T8482] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.834188][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.842557][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.855281][ T8482] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.874638][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.897072][ T8482] device veth0_vlan entered promiscuous mode [ 65.905654][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.914969][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.923371][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.937773][ T8482] device veth1_vlan entered promiscuous mode [ 65.959590][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.968406][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.977718][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.989744][ T8482] device veth0_macvtap entered promiscuous mode [ 66.001650][ T8482] device veth1_macvtap entered promiscuous mode [ 66.021589][ T8482] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.029008][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.039289][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.053425][ T8482] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.062028][ T3005] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.075700][ T8482] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.088684][ T8482] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.102026][ T8482] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.115417][ T8482] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.207934][ T112] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.234757][ T112] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.264518][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.282035][ T272] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.290069][ T272] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.302385][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.319085][ T272] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 66.329298][ T272] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 272, name: kworker/u4:6 [ 66.341207][ T272] 4 locks held by kworker/u4:6/272: [ 66.346520][ T272] #0: ffff888027cac938 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.357897][ T272] #1: ffffc900010ffda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.390301][ T272] #2: ffff88801baf4d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.414338][ T272] #3: ffffffff8b337820 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.433866][ T272] Preemption disabled at: [ 66.433896][ T272] [] __mutex_lock+0x10f/0x10e0 [ 66.459328][ T272] CPU: 1 PID: 272 Comm: kworker/u4:6 Not tainted 5.10.0-rc4-syzkaller #0 [ 66.467782][ T272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.477862][ T272] Workqueue: phy4 ieee80211_iface_work [ 66.483337][ T272] Call Trace: [ 66.486659][ T272] dump_stack+0x107/0x163 [ 66.491005][ T272] ? __mutex_lock+0x10f/0x10e0 [ 66.495772][ T272] ___might_sleep.cold+0x1e8/0x22e [ 66.500933][ T272] sta_info_move_state+0x32/0x8d0 [ 66.505967][ T272] sta_info_free+0x65/0x3b0 [ 66.510462][ T272] sta_info_insert_rcu+0x303/0x2ba0 [ 66.515650][ T272] ? find_held_lock+0x2d/0x110 [ 66.520409][ T272] ? rate_control_rate_init+0x32c/0x6a0 [ 66.525955][ T272] ? sta_info_free+0x3b0/0x3b0 [ 66.530712][ T272] ? __local_bh_enable_ip+0x9c/0x110 [ 66.535990][ T272] ? rate_control_rate_init+0x35f/0x6a0 [ 66.541524][ T272] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.547142][ T272] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.553210][ T272] ? __local_bh_enable_ip+0x9c/0x110 [ 66.558488][ T272] ieee80211_ibss_work+0x2c7/0xe80 [ 66.563593][ T272] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.569910][ T272] ? mark_held_locks+0x9f/0xe0 [ 66.574666][ T272] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.580465][ T272] ? lockdep_hardirqs_on+0x79/0x100 [ 66.585652][ T272] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.591460][ T272] ieee80211_iface_work+0x82e/0x970 [ 66.596649][ T272] process_one_work+0x933/0x15a0 [ 66.601592][ T272] ? lock_release+0x710/0x710 [ 66.606252][ T272] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.611613][ T272] ? rwlock_bug.part.0+0x90/0x90 [ 66.616533][ T272] ? _raw_spin_lock_irq+0x41/0x50 [ 66.621550][ T272] worker_thread+0x64c/0x1120 [ 66.626221][ T272] ? process_one_work+0x15a0/0x15a0 [ 66.631407][ T272] kthread+0x3af/0x4a0 [ 66.635476][ T272] ? kthread_create_worker_on_cpu+0xf0/0xf0 executing program 2020/11/18 08:43:06 building call list... [ 66.641364][ T272] ret_from_fork+0x1f/0x30 [ 66.665818][ T272] [ 66.668187][ T272] ============================= [ 66.673018][ T272] [ BUG: Invalid wait context ] [ 66.677855][ T272] 5.10.0-rc4-syzkaller #0 Tainted: G W [ 66.684598][ T272] ----------------------------- [ 66.689435][ T272] kworker/u4:6/272 is trying to lock: [ 66.694795][ T272] ffff88801b9ba9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 66.705409][ T272] other info that might help us debug this: [ 66.711302][ T272] context-{4:4} [ 66.714751][ T272] 4 locks held by kworker/u4:6/272: [ 66.719928][ T272] #0: ffff888027cac938 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.730109][ T272] #1: ffffc900010ffda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.741327][ T272] #2: ffff88801baf4d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.750808][ T272] #3: ffffffff8b337820 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.760727][ T272] stack backtrace: [ 66.764452][ T272] CPU: 0 PID: 272 Comm: kworker/u4:6 Tainted: G W 5.10.0-rc4-syzkaller #0 [ 66.774240][ T272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.784297][ T272] Workqueue: phy4 ieee80211_iface_work [ 66.789743][ T272] Call Trace: [ 66.793028][ T272] dump_stack+0x107/0x163 [ 66.797351][ T272] __lock_acquire.cold+0x1d6/0x39f [ 66.802464][ T272] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.808436][ T272] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.814666][ T272] lock_acquire+0x2a3/0x8c0 [ 66.819167][ T272] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.825141][ T272] ? lock_release+0x710/0x710 [ 66.829823][ T272] __mutex_lock+0x134/0x10e0 [ 66.834408][ T272] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.840384][ T272] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.846378][ T272] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.851763][ T272] ? ieee80211_clear_fast_rx+0x58/0x80 [ 66.857230][ T272] ? mark_held_locks+0x9f/0xe0 [ 66.861995][ T272] ieee80211_recalc_min_chandef+0x49/0x140 [ 66.867799][ T272] sta_info_move_state+0x3cf/0x8d0 [ 66.872906][ T272] sta_info_free+0x65/0x3b0 [ 66.877405][ T272] sta_info_insert_rcu+0x303/0x2ba0 [ 66.882597][ T272] ? find_held_lock+0x2d/0x110 [ 66.887363][ T272] ? rate_control_rate_init+0x32c/0x6a0 [ 66.892937][ T272] ? sta_info_free+0x3b0/0x3b0 [ 66.897698][ T272] ? __local_bh_enable_ip+0x9c/0x110 [ 66.902980][ T272] ? rate_control_rate_init+0x35f/0x6a0 [ 66.908522][ T272] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.914158][ T272] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.920220][ T272] ? __local_bh_enable_ip+0x9c/0x110 [ 66.925514][ T272] ieee80211_ibss_work+0x2c7/0xe80 [ 66.930621][ T272] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.936946][ T272] ? mark_held_locks+0x9f/0xe0 [ 66.941706][ T272] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.947505][ T272] ? lockdep_hardirqs_on+0x79/0x100 [ 66.952699][ T272] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.958498][ T272] ieee80211_iface_work+0x82e/0x970 [ 66.963690][ T272] process_one_work+0x933/0x15a0 [ 66.968619][ T272] ? lock_release+0x710/0x710 [ 66.973285][ T272] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.978648][ T272] ? rwlock_bug.part.0+0x90/0x90 [ 66.983577][ T272] ? _raw_spin_lock_irq+0x41/0x50 [ 66.988594][ T272] worker_thread+0x64c/0x1120 [ 66.993269][ T272] ? process_one_work+0x15a0/0x15a0 [ 66.998463][ T272] kthread+0x3af/0x4a0 [ 67.002555][ T272] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 67.008438][ T272] ret_from_fork+0x1f/0x30 [ 67.020819][ T34] Bluetooth: hci0: command 0x0409 tx timeout [ 67.197674][ T402] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.276315][ T402] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.345600][ T402] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.426251][ T402] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.691174][ T402] device hsr_slave_0 left promiscuous mode [ 68.710045][ T402] device hsr_slave_1 left promiscuous mode [ 68.716206][ T402] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.739940][ T402] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.747594][ T402] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.755286][ T402] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.763683][ T402] device bridge_slave_1 left promiscuous mode [ 68.770118][ T402] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.778252][ T402] device bridge_slave_0 left promiscuous mode [ 68.784799][ T402] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.794876][ T402] device veth1_macvtap left promiscuous mode [ 68.801152][ T402] device veth0_macvtap left promiscuous mode [ 68.807157][ T402] device veth1_vlan left promiscuous mode [ 68.813220][ T402] device veth0_vlan left promiscuous mode executing program [ 69.800953][ T402] team0 (unregistering): Port device team_slave_1 removed [ 69.811482][ T402] team0 (unregistering): Port device team_slave_0 removed [ 69.822297][ T402] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.833145][ T402] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.860858][ T402] bond0 (unregistering): Released all slaves [ 69.954591][ T8465] can: request_module (can-proto-0) failed. [ 70.356939][ T8465] can: request_module (can-proto-0) failed. [ 70.366782][ T8465] can: request_module (can-proto-0) failed.