[ 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 '10.128.0.6' (ECDSA) to the list of known hosts. 2020/12/04 19:15:01 fuzzer started 2020/12/04 19:15:01 connecting to host at 10.128.0.26:39373 2020/12/04 19:15:01 checking machine... 2020/12/04 19:15:01 checking revisions... 2020/12/04 19:15:02 testing simple program... syzkaller login: [ 67.638011][ T8510] IPVS: ftp: loaded support on port[0] = 21 [ 67.829456][ T8510] chnl_net:caif_netlink_parms(): no params data found [ 67.886430][ T8510] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.894140][ T8510] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.901955][ T8510] device bridge_slave_0 entered promiscuous mode [ 67.912939][ T8510] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.920403][ T8510] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.929325][ T8510] device bridge_slave_1 entered promiscuous mode [ 67.953184][ T8510] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.965786][ T8510] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.990006][ T8510] team0: Port device team_slave_0 added [ 67.997687][ T8510] team0: Port device team_slave_1 added [ 68.017066][ T8510] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.024391][ T8510] 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. [ 68.050514][ T8510] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.063737][ T8510] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.070717][ T8510] 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. [ 68.098761][ T8510] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.126723][ T8510] device hsr_slave_0 entered promiscuous mode [ 68.133942][ T8510] device hsr_slave_1 entered promiscuous mode [ 68.239291][ T8510] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.250712][ T8510] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.261125][ T8510] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.271662][ T8510] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.299396][ T8510] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.306659][ T8510] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.314876][ T8510] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.322790][ T8510] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.374554][ T8510] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.388868][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.401383][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.410993][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.419635][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.435446][ T8510] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.448972][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.458239][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.465379][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.485327][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.494348][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.501724][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.525529][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.535385][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.544736][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.559449][ T8510] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.571740][ T8510] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.581945][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.591954][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.612446][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.622276][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.636980][ T8510] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.659234][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.682108][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.691039][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.699874][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.710984][ T8510] device veth0_vlan entered promiscuous mode [ 68.725592][ T8510] device veth1_vlan entered promiscuous mode [ 68.750243][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.759564][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.769918][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.782664][ T8510] device veth0_macvtap entered promiscuous mode [ 68.795841][ T8510] device veth1_macvtap entered promiscuous mode [ 68.806327][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.825612][ T8510] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.834776][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.845443][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.857207][ T8510] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.865979][ T3003] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.875764][ T3003] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.887789][ T8510] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.902624][ T8510] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.911768][ T8510] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.921291][ T8510] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.000618][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.029984][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.049425][ T3003] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.068513][ T244] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.077397][ T244] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.086886][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 69.135406][ T8] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 69.148080][ T8] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 8, name: kworker/u4:0 [ 69.159027][ T8] 4 locks held by kworker/u4:0/8: [ 69.165442][ T8] #0: ffff88801c405938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 69.189707][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 69.212309][ T8] #2: ffff88801c464d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 2020/12/04 19:15:05 building call list... [ 69.230456][ T8] #3: ffffffff8b3372a0 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 69.244086][ T8] Preemption disabled at: [ 69.244138][ T8] [] __mutex_lock+0x10f/0x10e0 [ 69.256211][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.10.0-rc3-syzkaller #0 [ 69.264466][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.274650][ T8] Workqueue: phy3 ieee80211_iface_work [ 69.280214][ T8] Call Trace: [ 69.283513][ T8] dump_stack+0x107/0x163 [ 69.287851][ T8] ? __mutex_lock+0x10f/0x10e0 [ 69.292806][ T8] ___might_sleep.cold+0x1e8/0x22e [ 69.297941][ T8] sta_info_move_state+0x32/0x8d0 [ 69.302987][ T8] sta_info_free+0x65/0x3b0 [ 69.307505][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 69.312730][ T8] ? find_held_lock+0x2d/0x110 [ 69.317603][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 69.323176][ T8] ? sta_info_free+0x3b0/0x3b0 [ 69.327962][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 69.333790][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 69.339354][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 69.345002][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 69.351079][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 69.356650][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 69.361800][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 69.368141][ T8] ? mark_held_locks+0x9f/0xe0 [ 69.373353][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 69.379166][ T8] ? lockdep_hardirqs_on+0x79/0x100 [ 69.384528][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 69.390362][ T8] ieee80211_iface_work+0x91f/0xa90 [ 69.395586][ T8] process_one_work+0x933/0x15a0 [ 69.400549][ T8] ? lock_release+0x710/0x710 [ 69.405241][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 69.410625][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 69.415675][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 69.420725][ T8] worker_thread+0x64c/0x1120 [ 69.425429][ T8] ? process_one_work+0x15a0/0x15a0 [ 69.430640][ T8] kthread+0x3af/0x4a0 [ 69.434722][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 69.440654][ T8] ret_from_fork+0x1f/0x30 [ 69.452352][ T8] [ 69.454717][ T8] ============================= [ 69.459556][ T8] [ BUG: Invalid wait context ] [ 69.464750][ T8] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 69.471506][ T8] ----------------------------- [ 69.476429][ T8] kworker/u4:0/8 is trying to lock: [ 69.481613][ T8] ffff8880305929d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 69.492223][ T8] other info that might help us debug this: [ 69.498104][ T8] context-{4:4} [ 69.501597][ T8] 4 locks held by kworker/u4:0/8: [ 69.507398][ T8] #0: ffff88801c405938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 69.518452][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 69.529846][ T8] #2: ffff88801c464d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 69.539328][ T8] #3: ffffffff8b3372a0 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 69.549428][ T8] stack backtrace: [ 69.553145][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 69.562751][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.573159][ T8] Workqueue: phy3 ieee80211_iface_work [ 69.578612][ T8] Call Trace: [ 69.581908][ T8] dump_stack+0x107/0x163 [ 69.586238][ T8] __lock_acquire.cold+0x310/0x3a2 [ 69.591351][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 69.597327][ T8] ? find_held_lock+0x2d/0x110 [ 69.602111][ T8] lock_acquire+0x2a3/0x8c0 [ 69.606612][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 69.612587][ T8] ? lock_release+0x710/0x710 [ 69.617263][ T8] __mutex_lock+0x134/0x10e0 [ 69.621846][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 69.627907][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 69.634056][ T8] ? mutex_lock_io_nested+0xf60/0xf60 [ 69.639641][ T8] ? ieee80211_clear_fast_rx+0x58/0x80 [ 69.645107][ T8] ? mark_held_locks+0x9f/0xe0 [ 69.649868][ T8] ieee80211_recalc_min_chandef+0x49/0x140 [ 69.653712][ T4099] Bluetooth: hci0: command 0x0409 tx timeout [ 69.656124][ T8] sta_info_move_state+0x3cf/0x8d0 [ 69.667531][ T8] sta_info_free+0x65/0x3b0 [ 69.672065][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 69.677706][ T8] ? find_held_lock+0x2d/0x110 [ 69.682464][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 69.688006][ T8] ? sta_info_free+0x3b0/0x3b0 [ 69.692773][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 69.698061][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 69.703618][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 69.709466][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 69.715574][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 69.720860][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 69.726410][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 69.732968][ T8] ? mark_held_locks+0x9f/0xe0 [ 69.737864][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 69.744371][ T8] ? lockdep_hardirqs_on+0x79/0x100 [ 69.749642][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 69.755628][ T8] ieee80211_iface_work+0x91f/0xa90 [ 69.760832][ T8] process_one_work+0x933/0x15a0 [ 69.765774][ T8] ? lock_release+0x710/0x710 [ 69.770447][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 69.775814][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 69.780744][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 69.785885][ T8] worker_thread+0x64c/0x1120 [ 69.790576][ T8] ? process_one_work+0x15a0/0x15a0 [ 69.795774][ T8] kthread+0x3af/0x4a0 [ 69.799998][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 69.805891][ T8] ret_from_fork+0x1f/0x30 [ 70.042470][ T28] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.150230][ T28] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.230219][ T28] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.308048][ T28] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.506361][ T28] device hsr_slave_0 left promiscuous mode [ 71.524286][ T28] device hsr_slave_1 left promiscuous mode [ 71.530895][ T28] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 71.540219][ T28] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 71.550301][ T28] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 71.558611][ T28] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 71.567295][ T28] device bridge_slave_1 left promiscuous mode [ 71.574855][ T28] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.583667][ T28] device bridge_slave_0 left promiscuous mode [ 71.589839][ T28] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.601132][ T28] device veth1_macvtap left promiscuous mode [ 71.607684][ T28] device veth0_macvtap left promiscuous mode [ 71.615236][ T28] device veth1_vlan left promiscuous mode [ 71.627001][ T28] device veth0_vlan left promiscuous mode executing program [ 72.550972][ T28] team0 (unregistering): Port device team_slave_1 removed [ 72.560621][ T28] team0 (unregistering): Port device team_slave_0 removed [ 72.572501][ T28] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.585496][ T28] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 72.612921][ T28] bond0 (unregistering): Released all slaves [ 72.717306][ T8498] can: request_module (can-proto-0) failed. [ 73.087846][ T8498] can: request_module (can-proto-0) failed. [ 73.097755][ T8498] can: request_module (can-proto-0) failed. [ 73.240042][ T8498] base_sock_release(000000008e48640f) sk=00000000095110ff