[ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.190' (ECDSA) to the list of known hosts. 2020/11/13 15:16:30 fuzzer started 2020/11/13 15:16:30 connecting to host at 10.128.0.26:46703 2020/11/13 15:16:30 checking machine... 2020/11/13 15:16:30 checking revisions... 2020/11/13 15:16:30 testing simple program... syzkaller login: [ 59.866749][ T8490] IPVS: ftp: loaded support on port[0] = 21 [ 60.018467][ T8490] chnl_net:caif_netlink_parms(): no params data found [ 60.069604][ T8490] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.078072][ T8490] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.087022][ T8490] device bridge_slave_0 entered promiscuous mode [ 60.096024][ T8490] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.103982][ T8490] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.111558][ T8490] device bridge_slave_1 entered promiscuous mode [ 60.132984][ T8490] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.144668][ T8490] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.167183][ T8490] team0: Port device team_slave_0 added [ 60.174584][ T8490] team0: Port device team_slave_1 added [ 60.191742][ T8490] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.198791][ T8490] 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. [ 60.225055][ T8490] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.237332][ T8490] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.244379][ T8490] 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. [ 60.270847][ T8490] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.297358][ T8490] device hsr_slave_0 entered promiscuous mode [ 60.304202][ T8490] device hsr_slave_1 entered promiscuous mode [ 60.395468][ T8490] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.405610][ T8490] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.415308][ T8490] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.425290][ T8490] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.449234][ T8490] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.456457][ T8490] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.464202][ T8490] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.471246][ T8490] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.517257][ T8490] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.530325][ T3124] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.541741][ T3124] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.550219][ T3124] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.558210][ T3124] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 60.570606][ T8490] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.583425][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.591816][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.598953][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.622971][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.631454][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.638587][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.647930][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.656772][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.671247][ T8490] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.683923][ T8490] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.697161][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.705040][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.713653][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.724978][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.738980][ T3124] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.747504][ T3124] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.760485][ T8490] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.783123][ T4913] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 60.799701][ T4913] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 60.807892][ T4913] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 60.816522][ T4913] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 60.827652][ T8490] device veth0_vlan entered promiscuous mode [ 60.839550][ T8490] device veth1_vlan entered promiscuous mode [ 60.860802][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 60.869315][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 60.878522][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 60.889380][ T8490] device veth0_macvtap entered promiscuous mode [ 60.899598][ T8490] device veth1_macvtap entered promiscuous mode [ 60.916955][ T8490] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 60.924690][ T4913] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 60.934761][ T4913] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 60.945973][ T8490] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 60.954879][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 60.966322][ T8490] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.976116][ T8490] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.986509][ T8490] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 60.995251][ T8490] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 61.059581][ T648] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.087329][ T648] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.113852][ T194] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.121848][ T194] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.131585][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 61.146040][ T3124] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 61.195111][ T648] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 61.205608][ T648] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 648, name: kworker/u4:6 [ 61.215096][ T648] 4 locks held by kworker/u4:6/648: [ 61.220508][ T648] #0: ffff88801b211938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 61.243143][ T648] #1: ffffc90002ddfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 61.259261][ T648] #2: ffff888027db0d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 61.268857][ T648] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 2020/11/13 15:16:33 building call list... [ 61.295715][ T648] Preemption disabled at: [ 61.295757][ T648] [] __mutex_lock+0x10f/0x10e0 [ 61.306598][ T648] CPU: 1 PID: 648 Comm: kworker/u4:6 Not tainted 5.10.0-rc3-syzkaller #0 [ 61.315004][ T648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.325058][ T648] Workqueue: phy3 ieee80211_iface_work [ 61.330521][ T648] Call Trace: [ 61.333824][ T648] dump_stack+0x107/0x163 [ 61.338153][ T648] ? __mutex_lock+0x10f/0x10e0 [ 61.342917][ T648] ___might_sleep.cold+0x1e8/0x22e [ 61.348032][ T648] sta_info_move_state+0x32/0x8d0 [ 61.353076][ T648] sta_info_free+0x65/0x3b0 [ 61.357599][ T648] sta_info_insert_rcu+0x303/0x2ba0 [ 61.362801][ T648] ? find_held_lock+0x2d/0x110 [ 61.367569][ T648] ? rate_control_rate_init+0x32c/0x6a0 [ 61.373121][ T648] ? sta_info_free+0x3b0/0x3b0 [ 61.377895][ T648] ? __local_bh_enable_ip+0x9c/0x110 [ 61.383193][ T648] ? rate_control_rate_init+0x35f/0x6a0 [ 61.388762][ T648] ieee80211_ibss_finish_sta+0x212/0x390 executing program [ 61.394432][ T648] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 61.400506][ T648] ? __local_bh_enable_ip+0x9c/0x110 [ 61.405803][ T648] ieee80211_ibss_work+0x2c7/0xe80 [ 61.410929][ T648] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 61.417271][ T648] ? mark_held_locks+0x9f/0xe0 [ 61.422047][ T648] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 61.427989][ T648] ? lockdep_hardirqs_on+0x79/0x100 [ 61.433205][ T648] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 61.439018][ T648] ieee80211_iface_work+0x91f/0xa90 [ 61.444246][ T648] process_one_work+0x933/0x15a0 [ 61.449189][ T648] ? lock_release+0x710/0x710 [ 61.453958][ T648] ? pwq_dec_nr_in_flight+0x320/0x320 [ 61.459335][ T648] ? rwlock_bug.part.0+0x90/0x90 [ 61.464270][ T648] ? _raw_spin_lock_irq+0x41/0x50 [ 61.469297][ T648] worker_thread+0x64c/0x1120 [ 61.473986][ T648] ? __kthread_parkme+0x13f/0x1e0 [ 61.479015][ T648] ? process_one_work+0x15a0/0x15a0 [ 61.484208][ T648] kthread+0x3af/0x4a0 [ 61.488300][ T648] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 61.494202][ T648] ret_from_fork+0x1f/0x30 [ 61.503513][ T648] [ 61.505838][ T648] ============================= [ 61.510673][ T648] [ BUG: Invalid wait context ] [ 61.515525][ T648] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 61.522285][ T648] ----------------------------- [ 61.527122][ T648] kworker/u4:6/648 is trying to lock: [ 61.532479][ T648] ffff88801b4fa9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 61.543072][ T648] other info that might help us debug this: [ 61.548953][ T648] context-{4:4} [ 61.552397][ T648] 4 locks held by kworker/u4:6/648: [ 61.557571][ T648] #0: ffff88801b211938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 61.567725][ T648] #1: ffffc90002ddfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 61.578920][ T648] #2: ffff888027db0d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 61.588380][ T648] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 61.598275][ T648] stack backtrace: [ 61.601986][ T648] CPU: 1 PID: 648 Comm: kworker/u4:6 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 61.611764][ T648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.621813][ T648] Workqueue: phy3 ieee80211_iface_work [ 61.627257][ T648] Call Trace: [ 61.630542][ T648] dump_stack+0x107/0x163 [ 61.634865][ T648] __lock_acquire.cold+0x310/0x3a2 [ 61.639964][ T648] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 61.645931][ T648] ? find_held_lock+0x2d/0x110 [ 61.650680][ T648] lock_acquire+0x2a3/0x8c0 [ 61.655179][ T648] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 61.661148][ T648] ? lock_release+0x710/0x710 [ 61.665817][ T648] __mutex_lock+0x134/0x10e0 [ 61.670394][ T648] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 61.676359][ T648] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 61.682326][ T648] ? mutex_lock_io_nested+0xf60/0xf60 [ 61.687696][ T648] ? ieee80211_clear_fast_rx+0x58/0x80 [ 61.693140][ T648] ? mark_held_locks+0x9f/0xe0 [ 61.697890][ T648] ieee80211_recalc_min_chandef+0x49/0x140 [ 61.703685][ T648] sta_info_move_state+0x3cf/0x8d0 [ 61.708783][ T648] sta_info_free+0x65/0x3b0 [ 61.713277][ T648] sta_info_insert_rcu+0x303/0x2ba0 [ 61.718468][ T648] ? find_held_lock+0x2d/0x110 [ 61.723233][ T648] ? rate_control_rate_init+0x32c/0x6a0 [ 61.728767][ T648] ? sta_info_free+0x3b0/0x3b0 [ 61.733516][ T648] ? __local_bh_enable_ip+0x9c/0x110 [ 61.738788][ T648] ? rate_control_rate_init+0x35f/0x6a0 [ 61.744327][ T648] ieee80211_ibss_finish_sta+0x212/0x390 [ 61.749966][ T648] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 61.756026][ T648] ? __local_bh_enable_ip+0x9c/0x110 [ 61.761302][ T648] ieee80211_ibss_work+0x2c7/0xe80 [ 61.766402][ T648] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 61.772717][ T648] ? mark_held_locks+0x9f/0xe0 [ 61.777469][ T648] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 61.783277][ T648] ? lockdep_hardirqs_on+0x79/0x100 [ 61.788472][ T648] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 61.794272][ T648] ieee80211_iface_work+0x91f/0xa90 [ 61.799468][ T648] process_one_work+0x933/0x15a0 [ 61.804396][ T648] ? lock_release+0x710/0x710 [ 61.809058][ T648] ? pwq_dec_nr_in_flight+0x320/0x320 [ 61.814413][ T648] ? rwlock_bug.part.0+0x90/0x90 [ 61.819333][ T648] ? _raw_spin_lock_irq+0x41/0x50 [ 61.824342][ T648] worker_thread+0x64c/0x1120 [ 61.829011][ T648] ? __kthread_parkme+0x13f/0x1e0 [ 61.834020][ T648] ? process_one_work+0x15a0/0x15a0 [ 61.839206][ T648] kthread+0x3af/0x4a0 [ 61.843262][ T648] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 61.849138][ T648] ret_from_fork+0x1f/0x30 [ 61.872046][ T3124] Bluetooth: hci0: command 0x0409 tx timeout [ 62.007301][ T194] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.123623][ T194] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.203634][ T194] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 62.306113][ T194] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 63.471284][ T194] device hsr_slave_0 left promiscuous mode [ 63.485343][ T194] device hsr_slave_1 left promiscuous mode [ 63.493459][ T194] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 63.500891][ T194] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 63.510123][ T194] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 63.518603][ T194] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 63.527069][ T194] device bridge_slave_1 left promiscuous mode [ 63.533975][ T194] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.542666][ T194] device bridge_slave_0 left promiscuous mode [ 63.548802][ T194] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.557808][ T194] device veth1_macvtap left promiscuous mode [ 63.563873][ T194] device veth0_macvtap left promiscuous mode [ 63.569848][ T194] device veth1_vlan left promiscuous mode [ 63.575923][ T194] device veth0_vlan left promiscuous mode [ 64.345491][ T194] team0 (unregistering): Port device team_slave_1 removed [ 64.354976][ T194] team0 (unregistering): Port device team_slave_0 removed [ 64.364615][ T194] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 64.375143][ T194] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface executing program [ 64.403078][ T194] bond0 (unregistering): Released all slaves [ 64.544873][ T8477] can: request_module (can-proto-0) failed. [ 64.845517][ T8477] can: request_module (can-proto-0) failed. [ 64.854822][ T8477] can: request_module (can-proto-0) failed. [ 64.982290][ T8477] base_sock_release(00000000b6c913a8) sk=00000000b9223765