[ 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 '10.128.1.23' (ECDSA) to the list of known hosts. 2020/11/12 02:53:05 fuzzer started 2020/11/12 02:53:06 connecting to host at 10.128.0.26:41243 2020/11/12 02:53:06 checking machine... 2020/11/12 02:53:06 checking revisions... 2020/11/12 02:53:06 testing simple program... syzkaller login: [ 65.377172][ T8508] IPVS: ftp: loaded support on port[0] = 21 [ 65.520909][ T8508] chnl_net:caif_netlink_parms(): no params data found [ 65.575639][ T8508] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.583756][ T8508] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.592159][ T8508] device bridge_slave_0 entered promiscuous mode [ 65.601058][ T8508] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.608161][ T8508] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.616606][ T8508] device bridge_slave_1 entered promiscuous mode [ 65.637030][ T8508] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.647760][ T8508] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.671306][ T8508] team0: Port device team_slave_0 added [ 65.678979][ T8508] team0: Port device team_slave_1 added [ 65.696867][ T8508] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.703925][ T8508] 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. [ 65.729849][ T8508] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.742297][ T8508] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.749325][ T8508] 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. [ 65.775241][ T8508] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.801883][ T8508] device hsr_slave_0 entered promiscuous mode [ 65.808466][ T8508] device hsr_slave_1 entered promiscuous mode [ 65.905479][ T8508] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.915232][ T8508] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.925306][ T8508] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.935263][ T8508] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.959175][ T8508] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.966424][ T8508] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.974220][ T8508] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.981361][ T8508] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.027293][ T8508] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.042369][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.052622][ T3191] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.061384][ T3191] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.070367][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.083309][ T8508] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.094723][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.104362][ T2999] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.111469][ T2999] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.129366][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.137653][ T3191] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.144772][ T3191] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.166074][ T8508] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 66.176670][ T8508] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.191660][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.200107][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.208323][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.218241][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.227400][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.236399][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.255959][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.263484][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.277191][ T8508] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.299563][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.319971][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.328125][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.336864][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.345752][ T8508] device veth0_vlan entered promiscuous mode [ 66.358602][ T8508] device veth1_vlan entered promiscuous mode [ 66.381280][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.389797][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.398257][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.409560][ T8508] device veth0_macvtap entered promiscuous mode [ 66.418513][ T8508] device veth1_macvtap entered promiscuous mode [ 66.438169][ T8508] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.445811][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.455617][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.467127][ T8508] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.475819][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.487765][ T8508] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.499772][ T8508] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.508448][ T8508] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.521827][ T8508] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.614955][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.632491][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.650828][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.676175][ T141] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.685228][ T141] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.694334][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.712580][ T141] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 executing program [ 66.722198][ T141] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 141, name: kworker/u4:3 [ 66.731883][ T141] 4 locks held by kworker/u4:3/141: [ 66.737114][ T141] #0: ffff888014384138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.747791][ T141] #1: ffffc9000144fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.760366][ T141] #2: ffff88802d250d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.770803][ T141] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.780857][ T141] Preemption disabled at: [ 66.780882][ T141] [] __mutex_lock+0x10f/0x10e0 [ 66.792046][ T141] CPU: 0 PID: 141 Comm: kworker/u4:3 Not tainted 5.10.0-rc3-syzkaller #0 [ 66.800438][ T141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.810483][ T141] Workqueue: phy4 ieee80211_iface_work [ 66.815921][ T141] Call Trace: [ 66.819193][ T141] dump_stack+0x107/0x163 [ 66.823518][ T141] ? __mutex_lock+0x10f/0x10e0 [ 66.828263][ T141] ___might_sleep.cold+0x1e8/0x22e [ 66.833355][ T141] sta_info_move_state+0x32/0x8d0 [ 66.838360][ T141] sta_info_free+0x65/0x3b0 [ 66.842863][ T141] sta_info_insert_rcu+0x303/0x2ba0 [ 66.848039][ T141] ? find_held_lock+0x2d/0x110 [ 66.852803][ T141] ? rate_control_rate_init+0x32c/0x6a0 [ 66.858331][ T141] ? sta_info_free+0x3b0/0x3b0 [ 66.863089][ T141] ? __local_bh_enable_ip+0x9c/0x110 [ 66.868359][ T141] ? rate_control_rate_init+0x35f/0x6a0 [ 66.873902][ T141] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.879516][ T141] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.885561][ T141] ? __local_bh_enable_ip+0x9c/0x110 [ 66.890827][ T141] ieee80211_ibss_work+0x2c7/0xe80 [ 66.895935][ T141] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.902248][ T141] ? mark_held_locks+0x9f/0xe0 [ 66.907020][ T141] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.912806][ T141] ? lockdep_hardirqs_on+0x79/0x100 [ 66.917984][ T141] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.923769][ T141] ieee80211_iface_work+0x82e/0x970 [ 66.928951][ T141] process_one_work+0x933/0x15a0 [ 66.933878][ T141] ? lock_release+0x710/0x710 [ 66.938531][ T141] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.943903][ T141] ? rwlock_bug.part.0+0x90/0x90 [ 66.948818][ T141] ? _raw_spin_lock_irq+0x41/0x50 [ 66.953824][ T141] worker_thread+0x64c/0x1120 [ 66.958489][ T141] ? process_one_work+0x15a0/0x15a0 [ 66.963678][ T141] kthread+0x3af/0x4a0 [ 66.967742][ T141] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.973616][ T141] ret_from_fork+0x1f/0x30 [ 66.982619][ T141] [ 66.984974][ T141] ============================= [ 66.989812][ T141] [ BUG: Invalid wait context ] [ 66.994646][ T141] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 67.001374][ T141] ----------------------------- [ 67.006193][ T141] kworker/u4:3/141 is trying to lock: [ 67.011531][ T141] ffff88802b4fa9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 67.022119][ T141] other info that might help us debug this: [ 67.027977][ T141] context-{4:4} [ 67.031408][ T141] 4 locks held by kworker/u4:3/141: [ 67.036586][ T141] #0: ffff888014384138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 67.046719][ T141] #1: ffffc9000144fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.057909][ T141] #2: ffff88802d250d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.067348][ T141] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.077232][ T141] stack backtrace: [ 67.080932][ T141] CPU: 0 PID: 141 Comm: kworker/u4:3 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 67.090700][ T141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.100737][ T141] Workqueue: phy4 ieee80211_iface_work [ 67.106178][ T141] Call Trace: [ 67.109460][ T141] dump_stack+0x107/0x163 [ 67.113766][ T141] __lock_acquire.cold+0x310/0x3a2 [ 67.118854][ T141] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 67.124804][ T141] ? find_held_lock+0x2d/0x110 [ 67.129541][ T141] lock_acquire+0x2a3/0x8c0 [ 67.134017][ T141] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.139972][ T141] ? lock_release+0x710/0x710 [ 67.144649][ T141] __mutex_lock+0x134/0x10e0 [ 67.149215][ T141] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.155173][ T141] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.161125][ T141] ? mutex_lock_io_nested+0xf60/0xf60 [ 67.166468][ T141] ? ieee80211_clear_fast_rx+0x58/0x80 [ 67.171898][ T141] ? mark_held_locks+0x9f/0xe0 [ 67.176635][ T141] ieee80211_recalc_min_chandef+0x49/0x140 [ 67.182414][ T141] sta_info_move_state+0x3cf/0x8d0 [ 67.187499][ T141] sta_info_free+0x65/0x3b0 [ 67.191977][ T141] sta_info_insert_rcu+0x303/0x2ba0 [ 67.197261][ T141] ? find_held_lock+0x2d/0x110 [ 67.202000][ T141] ? rate_control_rate_init+0x32c/0x6a0 [ 67.207606][ T141] ? sta_info_free+0x3b0/0x3b0 [ 67.212364][ T141] ? __local_bh_enable_ip+0x9c/0x110 [ 67.217622][ T141] ? rate_control_rate_init+0x35f/0x6a0 [ 67.223143][ T141] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.228748][ T141] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.234788][ T141] ? __local_bh_enable_ip+0x9c/0x110 [ 67.240063][ T141] ieee80211_ibss_work+0x2c7/0xe80 [ 67.245152][ T141] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.251471][ T141] ? mark_held_locks+0x9f/0xe0 [ 67.256236][ T141] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 67.262014][ T141] ? lockdep_hardirqs_on+0x79/0x100 [ 67.267184][ T141] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 67.272963][ T141] ieee80211_iface_work+0x82e/0x970 [ 67.278136][ T141] process_one_work+0x933/0x15a0 [ 67.283050][ T141] ? lock_release+0x710/0x710 [ 67.287716][ T141] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.293061][ T141] ? rwlock_bug.part.0+0x90/0x90 [ 67.297970][ T141] ? _raw_spin_lock_irq+0x41/0x50 [ 67.302967][ T141] worker_thread+0x64c/0x1120 [ 67.307617][ T141] ? process_one_work+0x15a0/0x15a0 [ 67.312789][ T141] kthread+0x3af/0x4a0 [ 67.316832][ T141] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 67.322699][ T141] ret_from_fork+0x1f/0x30 2020/11/12 02:53:09 building call list... [ 67.359146][ T3191] Bluetooth: hci0: command 0x0409 tx timeout [ 67.640189][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.753916][ T8] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.833752][ T8] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.913671][ T8] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.161094][ T8] device hsr_slave_0 left promiscuous mode [ 69.174400][ T8] device hsr_slave_1 left promiscuous mode [ 69.180945][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 69.189422][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 69.197278][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 69.205454][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 69.215210][ T8] device bridge_slave_1 left promiscuous mode [ 69.221874][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.230964][ T8] device bridge_slave_0 left promiscuous mode [ 69.237102][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.247781][ T8] device veth1_macvtap left promiscuous mode [ 69.254583][ T8] device veth0_macvtap left promiscuous mode [ 69.261058][ T8] device veth1_vlan left promiscuous mode [ 69.266788][ T8] device veth0_vlan left promiscuous mode executing program [ 70.316700][ T8] team0 (unregistering): Port device team_slave_1 removed [ 70.325973][ T8] team0 (unregistering): Port device team_slave_0 removed [ 70.336182][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 70.350034][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 70.376039][ T8] bond0 (unregistering): Released all slaves [ 70.450869][ T8485] can: request_module (can-proto-0) failed. [ 70.861149][ T8485] can: request_module (can-proto-0) failed. [ 70.870935][ T8485] can: request_module (can-proto-0) failed.