[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ 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. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.145' (ECDSA) to the list of known hosts. 2020/11/19 22:58:27 fuzzer started 2020/11/19 22:58:27 connecting to host at 10.128.0.26:40951 2020/11/19 22:58:27 checking machine... 2020/11/19 22:58:27 checking revisions... 2020/11/19 22:58:27 testing simple program... syzkaller login: [ 64.428277][ T8504] IPVS: ftp: loaded support on port[0] = 21 [ 64.582064][ T8504] chnl_net:caif_netlink_parms(): no params data found [ 64.656165][ T8504] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.665180][ T8504] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.673118][ T8504] device bridge_slave_0 entered promiscuous mode [ 64.683669][ T8504] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.691009][ T8504] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.699401][ T8504] device bridge_slave_1 entered promiscuous mode [ 64.721892][ T8504] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.733045][ T8504] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.757611][ T8504] team0: Port device team_slave_0 added [ 64.766428][ T8504] team0: Port device team_slave_1 added [ 64.786131][ T8504] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.793088][ T8504] 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. [ 64.820832][ T8504] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.834446][ T8504] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.841546][ T8504] 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. [ 64.869114][ T8504] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.897280][ T8504] device hsr_slave_0 entered promiscuous mode [ 64.905218][ T8504] device hsr_slave_1 entered promiscuous mode [ 65.010132][ T8504] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.020810][ T8504] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.031721][ T8504] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.042156][ T8504] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.069643][ T8504] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.076907][ T8504] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.085506][ T8504] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.092604][ T8504] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.151265][ T8504] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.168756][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.180015][ T3129] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.188812][ T3129] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.197210][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.211163][ T8504] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.225007][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.233530][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.240606][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.258197][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.267084][ T3129] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.274314][ T3129] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.295033][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.305712][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.314412][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.328285][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.342212][ T8504] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.354288][ T8504] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.362625][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.385442][ T8723] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.393029][ T8723] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.406354][ T8504] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.428194][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.451121][ T8723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.460302][ T8723] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.468883][ T8723] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.479929][ T8504] device veth0_vlan entered promiscuous mode [ 65.493631][ T8504] device veth1_vlan entered promiscuous mode [ 65.517428][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.527924][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.536891][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.548443][ T8504] device veth0_macvtap entered promiscuous mode [ 65.557636][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.570453][ T8504] device veth1_macvtap entered promiscuous mode [ 65.589439][ T8504] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.598788][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 65.608832][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.621578][ T8504] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.630499][ T8723] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.641854][ T8723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.656075][ T8504] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.666036][ T8504] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.675466][ T8504] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.684265][ T8504] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.763086][ T267] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.795524][ T267] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.816380][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.833862][ T27] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.843725][ T27] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.852742][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.865887][ T267] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 65.882995][ T267] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 267, name: kworker/u4:6 [ 65.898475][ T267] 4 locks held by kworker/u4:6/267: [ 65.905307][ T267] #0: ffff8880289d9938 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.922133][ T267] #1: ffffc9000175fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.936194][ T267] #2: ffff88801bad8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.947615][ T267] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.966249][ T267] Preemption disabled at: [ 65.966281][ T267] [] __mutex_lock+0x10f/0x10e0 [ 65.980088][ T267] CPU: 1 PID: 267 Comm: kworker/u4:6 Not tainted 5.10.0-rc3-syzkaller #0 [ 65.988621][ T267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.998799][ T267] Workqueue: phy4 ieee80211_iface_work [ 66.004280][ T267] Call Trace: [ 66.007585][ T267] dump_stack+0x107/0x163 [ 66.011923][ T267] ? __mutex_lock+0x10f/0x10e0 [ 66.016700][ T267] ___might_sleep.cold+0x1e8/0x22e [ 66.021836][ T267] sta_info_move_state+0x32/0x8d0 [ 66.026973][ T267] sta_info_free+0x65/0x3b0 [ 66.031498][ T267] sta_info_insert_rcu+0x303/0x2ba0 [ 66.036808][ T267] ? find_held_lock+0x2d/0x110 [ 66.041587][ T267] ? rate_control_rate_init+0x32c/0x6a0 [ 66.047154][ T267] ? sta_info_free+0x3b0/0x3b0 [ 66.052110][ T267] ? __local_bh_enable_ip+0x9c/0x110 [ 66.057416][ T267] ? rate_control_rate_init+0x35f/0x6a0 [ 66.062982][ T267] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.068639][ T267] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.074729][ T267] ? __local_bh_enable_ip+0x9c/0x110 [ 66.080036][ T267] ieee80211_ibss_work+0x2c7/0xe80 [ 66.085168][ T267] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.091521][ T267] ? mark_held_locks+0x9f/0xe0 [ 66.096310][ T267] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.102127][ T267] ? lockdep_hardirqs_on+0x79/0x100 [ 66.107339][ T267] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.113345][ T267] ieee80211_iface_work+0x91f/0xa90 executing program 2020/11/19 22:58:30 building call list... [ 66.118567][ T267] process_one_work+0x933/0x15a0 [ 66.123545][ T267] ? lock_release+0x710/0x710 [ 66.128233][ T267] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.133618][ T267] ? rwlock_bug.part.0+0x90/0x90 [ 66.138579][ T267] ? _raw_spin_lock_irq+0x41/0x50 [ 66.143730][ T267] worker_thread+0x64c/0x1120 [ 66.148448][ T267] ? __kthread_parkme+0x13f/0x1e0 [ 66.153517][ T267] ? process_one_work+0x15a0/0x15a0 [ 66.158733][ T267] kthread+0x3af/0x4a0 [ 66.162809][ T267] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.168721][ T267] ret_from_fork+0x1f/0x30 [ 66.190102][ T267] [ 66.192458][ T267] ============================= [ 66.197300][ T267] [ BUG: Invalid wait context ] [ 66.202236][ T267] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 66.209078][ T267] ----------------------------- [ 66.213915][ T267] kworker/u4:6/267 is trying to lock: [ 66.219269][ T267] ffff88801b8da9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 66.229884][ T267] other info that might help us debug this: [ 66.235777][ T267] context-{4:4} [ 66.239229][ T267] 4 locks held by kworker/u4:6/267: [ 66.244410][ T267] #0: ffff8880289d9938 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.254581][ T267] #1: ffffc9000175fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.265788][ T267] #2: ffff88801bad8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.275263][ T267] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.285321][ T267] stack backtrace: [ 66.289075][ T267] CPU: 1 PID: 267 Comm: kworker/u4:6 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 66.298874][ T267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.310763][ T267] Workqueue: phy4 ieee80211_iface_work [ 66.316222][ T267] Call Trace: [ 66.319512][ T267] dump_stack+0x107/0x163 [ 66.323836][ T267] __lock_acquire.cold+0x310/0x3a2 [ 66.328943][ T267] ? __percpu_down_read+0x83/0x120 [ 66.334135][ T267] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.340112][ T267] lock_acquire+0x2a3/0x8c0 [ 66.344624][ T267] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.350696][ T267] ? lock_release+0x710/0x710 [ 66.355380][ T267] __mutex_lock+0x134/0x10e0 [ 66.359970][ T267] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.365946][ T267] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.371917][ T267] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.377284][ T267] ? ieee80211_clear_fast_rx+0x58/0x80 [ 66.382749][ T267] ? mark_held_locks+0x9f/0xe0 [ 66.387521][ T267] ieee80211_recalc_min_chandef+0x49/0x140 [ 66.393766][ T267] sta_info_move_state+0x3cf/0x8d0 [ 66.398872][ T267] sta_info_free+0x65/0x3b0 [ 66.403380][ T267] sta_info_insert_rcu+0x303/0x2ba0 [ 66.408597][ T267] ? find_held_lock+0x2d/0x110 [ 66.413354][ T267] ? rate_control_rate_init+0x32c/0x6a0 [ 66.418908][ T267] ? sta_info_free+0x3b0/0x3b0 [ 66.423680][ T267] ? __local_bh_enable_ip+0x9c/0x110 [ 66.428981][ T267] ? rate_control_rate_init+0x35f/0x6a0 [ 66.435069][ T267] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.440716][ T267] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.446966][ T267] ? __local_bh_enable_ip+0x9c/0x110 [ 66.452354][ T267] ieee80211_ibss_work+0x2c7/0xe80 [ 66.457468][ T267] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.463798][ T267] ? mark_held_locks+0x9f/0xe0 [ 66.468579][ T267] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.474391][ T267] ? lockdep_hardirqs_on+0x79/0x100 [ 66.479674][ T267] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.485941][ T267] ieee80211_iface_work+0x91f/0xa90 [ 66.491152][ T267] process_one_work+0x933/0x15a0 [ 66.496085][ T267] ? lock_release+0x710/0x710 [ 66.500766][ T267] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.506134][ T267] ? rwlock_bug.part.0+0x90/0x90 [ 66.511065][ T267] ? _raw_spin_lock_irq+0x41/0x50 [ 66.516082][ T267] worker_thread+0x64c/0x1120 [ 66.520754][ T267] ? __kthread_parkme+0x13f/0x1e0 [ 66.525770][ T267] ? process_one_work+0x15a0/0x15a0 [ 66.530970][ T267] kthread+0x3af/0x4a0 [ 66.535033][ T267] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.540918][ T267] ret_from_fork+0x1f/0x30 [ 66.547135][ T17] Bluetooth: hci0: command 0x0409 tx timeout [ 66.732421][ T267] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.844657][ T267] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.908501][ T267] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.977816][ T267] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.263253][ T267] device hsr_slave_0 left promiscuous mode [ 68.274345][ T267] device hsr_slave_1 left promiscuous mode [ 68.280720][ T267] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.293662][ T267] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.301840][ T267] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.310312][ T267] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.320301][ T267] device bridge_slave_1 left promiscuous mode [ 68.327211][ T267] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.336563][ T267] device bridge_slave_0 left promiscuous mode [ 68.342850][ T267] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.355006][ T267] device veth1_macvtap left promiscuous mode [ 68.361077][ T267] device veth0_macvtap left promiscuous mode [ 68.368491][ T267] device veth1_vlan left promiscuous mode [ 68.375060][ T267] device veth0_vlan left promiscuous mode executing program [ 69.247766][ T267] team0 (unregistering): Port device team_slave_1 removed [ 69.257668][ T267] team0 (unregistering): Port device team_slave_0 removed [ 69.267414][ T267] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.280900][ T267] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.308952][ T267] bond0 (unregistering): Released all slaves [ 69.502141][ T8751] can: request_module (can-proto-0) failed. [ 69.794701][ T8751] can: request_module (can-proto-0) failed. [ 69.805084][ T8751] can: request_module (can-proto-0) failed. [ 69.948551][ T8751] base_sock_release(000000007582cdad) sk=00000000be634e69