Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.17' (ECDSA) to the list of known hosts. 2020/11/16 10:00:45 fuzzer started 2020/11/16 10:00:46 connecting to host at 10.128.0.26:36967 2020/11/16 10:00:46 checking machine... 2020/11/16 10:00:46 checking revisions... 2020/11/16 10:00:46 testing simple program... syzkaller login: [ 64.395502][ T8538] IPVS: ftp: loaded support on port[0] = 21 [ 64.568802][ T8538] chnl_net:caif_netlink_parms(): no params data found [ 64.623674][ T8538] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.632524][ T8538] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.642011][ T8538] device bridge_slave_0 entered promiscuous mode [ 64.651046][ T8538] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.659509][ T8538] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.667700][ T8538] device bridge_slave_1 entered promiscuous mode [ 64.688205][ T8538] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.699715][ T8538] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.722845][ T8538] team0: Port device team_slave_0 added [ 64.730195][ T8538] team0: Port device team_slave_1 added [ 64.747834][ T8538] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.754786][ T8538] 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. [ 64.780879][ T8538] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.793571][ T8538] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.800620][ T8538] 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. [ 64.826870][ T8538] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.855160][ T8538] device hsr_slave_0 entered promiscuous mode [ 64.861860][ T8538] device hsr_slave_1 entered promiscuous mode [ 64.961450][ T8538] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.971360][ T8538] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.982547][ T8538] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.992557][ T8538] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.018447][ T8538] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.025675][ T8538] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.033619][ T8538] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.040777][ T8538] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.085807][ T8538] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.104623][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.115296][ T2998] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.124162][ T2998] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.132920][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.146442][ T8538] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.157972][ T29] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.166358][ T29] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.173490][ T29] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.185783][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.195343][ T2998] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.202452][ T2998] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.222790][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.231329][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.244859][ T3128] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.258526][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.272480][ T8538] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.285244][ T8538] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.293895][ T3128] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.313207][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.320814][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.334518][ T8538] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.353458][ T3128] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.372861][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.381977][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.390837][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.402285][ T8538] device veth0_vlan entered promiscuous mode [ 65.414969][ T8538] device veth1_vlan entered promiscuous mode [ 65.435964][ T3128] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.444314][ T3128] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.452618][ T3128] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.463734][ T8538] device veth0_macvtap entered promiscuous mode [ 65.474123][ T8538] device veth1_macvtap entered promiscuous mode [ 65.493554][ T8538] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.501007][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.512172][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.523788][ T8538] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.533122][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.544827][ T8538] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.554021][ T8538] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.562884][ T8538] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.571649][ T8538] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.662309][ T50] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.680040][ T50] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.700871][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.723793][ T21] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.732424][ T21] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.741701][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.789729][ T21] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 65.802095][ T21] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 21, name: kworker/u4:1 [ 65.826594][ T21] 4 locks held by kworker/u4:1/21: [ 65.831733][ T21] #0: ffff88801bb9b938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.845638][ T21] #1: ffffc90000dbfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.868380][ T21] #2: ffff888036068d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 2020/11/16 10:00:49 building call list... [ 65.888276][ T21] #3: ffffffff8b337820 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 executing program [ 65.948323][ T21] Preemption disabled at: [ 65.948354][ T21] [] __mutex_lock+0x10f/0x10e0 [ 65.971039][ T21] CPU: 1 PID: 21 Comm: kworker/u4:1 Not tainted 5.10.0-rc4-syzkaller #0 [ 65.979400][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.989473][ T21] Workqueue: phy3 ieee80211_iface_work [ 65.994972][ T21] Call Trace: [ 65.998270][ T21] dump_stack+0x107/0x163 [ 66.002614][ T21] ? __mutex_lock+0x10f/0x10e0 [ 66.007386][ T21] ___might_sleep.cold+0x1e8/0x22e [ 66.012516][ T21] sta_info_move_state+0x32/0x8d0 [ 66.017563][ T21] sta_info_free+0x65/0x3b0 [ 66.022082][ T21] sta_info_insert_rcu+0x303/0x2ba0 [ 66.027288][ T21] ? find_held_lock+0x2d/0x110 [ 66.032065][ T21] ? rate_control_rate_init+0x32c/0x6a0 [ 66.037627][ T21] ? sta_info_free+0x3b0/0x3b0 [ 66.042396][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 66.047703][ T21] ? rate_control_rate_init+0x35f/0x6a0 [ 66.053263][ T21] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.059598][ T21] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.065674][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 66.070972][ T21] ieee80211_ibss_work+0x2c7/0xe80 [ 66.076272][ T21] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.082609][ T21] ? mark_held_locks+0x9f/0xe0 [ 66.087391][ T21] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.093214][ T21] ? lockdep_hardirqs_on+0x79/0x100 [ 66.098523][ T21] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.104349][ T21] ieee80211_iface_work+0x82e/0x970 [ 66.110529][ T21] process_one_work+0x933/0x15a0 [ 66.115484][ T21] ? lock_release+0x710/0x710 [ 66.120175][ T21] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.125725][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 66.130677][ T21] ? _raw_spin_lock_irq+0x41/0x50 [ 66.135718][ T21] worker_thread+0x64c/0x1120 [ 66.140418][ T21] ? process_one_work+0x15a0/0x15a0 [ 66.145624][ T21] kthread+0x3af/0x4a0 [ 66.149702][ T21] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.155607][ T21] ret_from_fork+0x1f/0x30 [ 66.182286][ T21] [ 66.184635][ T21] ============================= [ 66.189497][ T21] [ BUG: Invalid wait context ] [ 66.194337][ T21] 5.10.0-rc4-syzkaller #0 Tainted: G W [ 66.201078][ T21] ----------------------------- [ 66.205910][ T21] kworker/u4:1/21 is trying to lock: [ 66.211191][ T21] ffff88801ab7a9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 66.221786][ T21] other info that might help us debug this: [ 66.227749][ T21] context-{4:4} [ 66.231199][ T21] 4 locks held by kworker/u4:1/21: [ 66.236293][ T21] #0: ffff88801bb9b938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.246473][ T21] #1: ffffc90000dbfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.257692][ T21] #2: ffff888036068d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.267170][ T21] #3: ffffffff8b337820 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.277079][ T21] stack backtrace: [ 66.280825][ T21] CPU: 1 PID: 21 Comm: kworker/u4:1 Tainted: G W 5.10.0-rc4-syzkaller #0 [ 66.291042][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.302401][ T21] Workqueue: phy3 ieee80211_iface_work [ 66.307848][ T21] Call Trace: [ 66.311134][ T21] dump_stack+0x107/0x163 [ 66.315455][ T21] __lock_acquire.cold+0x1d6/0x39f [ 66.320570][ T21] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.326539][ T21] ? find_held_lock+0x2d/0x110 [ 66.331298][ T21] lock_acquire+0x2a3/0x8c0 [ 66.335797][ T21] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.341763][ T21] ? lock_release+0x710/0x710 [ 66.346437][ T21] __mutex_lock+0x134/0x10e0 [ 66.351015][ T21] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.356988][ T21] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.362964][ T21] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.368332][ T21] ? ieee80211_clear_fast_rx+0x58/0x80 [ 66.373783][ T21] ? mark_held_locks+0x9f/0xe0 [ 66.378545][ T21] ieee80211_recalc_min_chandef+0x49/0x140 [ 66.384519][ T21] sta_info_move_state+0x3cf/0x8d0 [ 66.389624][ T21] sta_info_free+0x65/0x3b0 [ 66.394119][ T21] sta_info_insert_rcu+0x303/0x2ba0 [ 66.399309][ T21] ? find_held_lock+0x2d/0x110 [ 66.404066][ T21] ? rate_control_rate_init+0x32c/0x6a0 [ 66.406804][ T2999] Bluetooth: hci0: command 0x0409 tx timeout [ 66.409608][ T21] ? sta_info_free+0x3b0/0x3b0 [ 66.420325][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 66.425614][ T21] ? rate_control_rate_init+0x35f/0x6a0 [ 66.431161][ T21] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.436794][ T21] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.442856][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 66.448135][ T21] ieee80211_ibss_work+0x2c7/0xe80 [ 66.453255][ T21] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.459577][ T21] ? mark_held_locks+0x9f/0xe0 [ 66.464334][ T21] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.470131][ T21] ? lockdep_hardirqs_on+0x79/0x100 [ 66.475325][ T21] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.481130][ T21] ieee80211_iface_work+0x82e/0x970 [ 66.486318][ T21] process_one_work+0x933/0x15a0 [ 66.491249][ T21] ? lock_release+0x710/0x710 [ 66.495920][ T21] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.501287][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 66.506217][ T21] ? _raw_spin_lock_irq+0x41/0x50 [ 66.511234][ T21] worker_thread+0x64c/0x1120 [ 66.515904][ T21] ? process_one_work+0x15a0/0x15a0 [ 66.521093][ T21] kthread+0x3af/0x4a0 [ 66.525153][ T21] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.531034][ T21] ret_from_fork+0x1f/0x30 [ 66.766039][ T50] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.872048][ T50] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.977782][ T50] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.062040][ T50] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.317042][ T50] device hsr_slave_0 left promiscuous mode [ 68.331775][ T50] device hsr_slave_1 left promiscuous mode [ 68.339758][ T50] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.348203][ T50] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.356717][ T50] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.364101][ T50] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.373821][ T50] device bridge_slave_1 left promiscuous mode [ 68.380204][ T50] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.388242][ T50] device bridge_slave_0 left promiscuous mode [ 68.394348][ T50] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.403410][ T50] device veth1_macvtap left promiscuous mode [ 68.409454][ T50] device veth0_macvtap left promiscuous mode [ 68.415483][ T50] device veth1_vlan left promiscuous mode [ 68.421398][ T50] device veth0_vlan left promiscuous mode executing program [ 69.249382][ T50] team0 (unregistering): Port device team_slave_1 removed [ 69.259127][ T50] team0 (unregistering): Port device team_slave_0 removed [ 69.269277][ T50] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.281960][ T50] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.308752][ T50] bond0 (unregistering): Released all slaves [ 69.363206][ T8517] can: request_module (can-proto-0) failed. [ 69.781055][ T8517] can: request_module (can-proto-0) failed. [ 69.791496][ T8517] can: request_module (can-proto-0) failed. [ 69.932360][ T8517] base_sock_release(0000000071493bea) sk=000000009ee5fb03