[ 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 '10.128.10.57' (ECDSA) to the list of known hosts. 2020/11/17 13:00:33 fuzzer started 2020/11/17 13:00:33 connecting to host at 10.128.0.26:45815 2020/11/17 13:00:33 checking machine... 2020/11/17 13:00:33 checking revisions... 2020/11/17 13:00:33 testing simple program... syzkaller login: [ 64.704131][ T8495] IPVS: ftp: loaded support on port[0] = 21 [ 64.843429][ T8495] chnl_net:caif_netlink_parms(): no params data found [ 64.896891][ T8495] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.905249][ T8495] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.914235][ T8495] device bridge_slave_0 entered promiscuous mode [ 64.923837][ T8495] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.931636][ T8495] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.939262][ T8495] device bridge_slave_1 entered promiscuous mode [ 64.960661][ T8495] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.972549][ T8495] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.994956][ T8495] team0: Port device team_slave_0 added [ 65.003295][ T8495] team0: Port device team_slave_1 added [ 65.021418][ T8495] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.028364][ T8495] 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. [ 65.055912][ T8495] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.068954][ T8495] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.076479][ T8495] 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. [ 65.102989][ T8495] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.132858][ T8495] device hsr_slave_0 entered promiscuous mode [ 65.139491][ T8495] device hsr_slave_1 entered promiscuous mode [ 65.239323][ T8495] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.249519][ T8495] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.266369][ T8495] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.277874][ T8495] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.305412][ T8495] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.312581][ T8495] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.320548][ T8495] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.327611][ T8495] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.376141][ T8495] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.390081][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.401044][ T3127] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.409156][ T3127] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.417526][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.431265][ T8495] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.443976][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.453049][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.460189][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.481166][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.490199][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.497260][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.507238][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.526812][ T8495] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.537987][ T8495] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.554100][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.562548][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.571487][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.580678][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.589050][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.610141][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.617658][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.630369][ T8495] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.651067][ T8188] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.671892][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.682467][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.691538][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.702380][ T8495] device veth0_vlan entered promiscuous mode [ 65.714982][ T8495] device veth1_vlan entered promiscuous mode [ 65.736847][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.746047][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.754860][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.765853][ T8495] device veth0_macvtap entered promiscuous mode [ 65.775838][ T8495] device veth1_macvtap entered promiscuous mode [ 65.795600][ T8495] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.803893][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.814267][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.825961][ T8495] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.835016][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.844382][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.856031][ T8495] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.865191][ T8495] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.874974][ T8495] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.893330][ T8495] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.975856][ T184] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.984243][ T184] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.001474][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.033503][ T184] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.043002][ T184] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.054240][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.093784][ T184] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 66.111474][ T184] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 184, name: kworker/u4:4 [ 66.134071][ T184] 4 locks held by kworker/u4:4/184: 2020/11/17 13:00:36 building call list... [ 66.139369][ T184] #0: ffff888023449938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.161868][ T184] #1: ffffc9000125fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.191074][ T184] #2: ffff888027d5cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.203302][ T184] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.215768][ T184] Preemption disabled at: [ 66.215796][ T184] [] __mutex_lock+0x10f/0x10e0 [ 66.231046][ T184] CPU: 0 PID: 184 Comm: kworker/u4:4 Not tainted 5.10.0-rc3-syzkaller #0 executing program [ 66.239471][ T184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.249544][ T184] Workqueue: phy3 ieee80211_iface_work [ 66.255012][ T184] Call Trace: [ 66.258307][ T184] dump_stack+0x107/0x163 [ 66.262647][ T184] ? __mutex_lock+0x10f/0x10e0 [ 66.267419][ T184] ___might_sleep.cold+0x1e8/0x22e [ 66.272540][ T184] sta_info_move_state+0x32/0x8d0 [ 66.277676][ T184] sta_info_free+0x65/0x3b0 [ 66.282198][ T184] sta_info_insert_rcu+0x303/0x2ba0 [ 66.287404][ T184] ? find_held_lock+0x2d/0x110 [ 66.292181][ T184] ? rate_control_rate_init+0x32c/0x6a0 [ 66.297738][ T184] ? sta_info_free+0x3b0/0x3b0 [ 66.302510][ T184] ? __local_bh_enable_ip+0x9c/0x110 [ 66.307811][ T184] ? rate_control_rate_init+0x35f/0x6a0 [ 66.313370][ T184] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.319015][ T184] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.325095][ T184] ? __local_bh_enable_ip+0x9c/0x110 [ 66.330397][ T184] ieee80211_ibss_work+0x2c7/0xe80 [ 66.335526][ T184] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.341871][ T184] ? mark_held_locks+0x9f/0xe0 [ 66.346641][ T184] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.352716][ T184] ? lockdep_hardirqs_on+0x79/0x100 [ 66.357928][ T184] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.363753][ T184] ieee80211_iface_work+0x91f/0xa90 [ 66.368968][ T184] process_one_work+0x933/0x15a0 [ 66.373927][ T184] ? lock_release+0x710/0x710 [ 66.378622][ T184] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.384009][ T184] ? rwlock_bug.part.0+0x90/0x90 [ 66.388952][ T184] ? _raw_spin_lock_irq+0x41/0x50 [ 66.393994][ T184] worker_thread+0x64c/0x1120 [ 66.398689][ T184] ? __kthread_parkme+0x13f/0x1e0 [ 66.403720][ T184] ? process_one_work+0x15a0/0x15a0 [ 66.408924][ T184] kthread+0x3af/0x4a0 [ 66.413004][ T184] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.418907][ T184] ret_from_fork+0x1f/0x30 [ 66.448353][ T184] [ 66.450707][ T184] ============================= [ 66.455555][ T184] [ BUG: Invalid wait context ] [ 66.460400][ T184] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 66.467173][ T184] ----------------------------- [ 66.472185][ T184] kworker/u4:4/184 is trying to lock: [ 66.477547][ T184] ffff888022c429d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 66.488159][ T184] other info that might help us debug this: [ 66.494040][ T184] context-{4:4} [ 66.497490][ T184] 4 locks held by kworker/u4:4/184: [ 66.502671][ T184] #0: ffff888023449938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.512844][ T184] #1: ffffc9000125fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.524062][ T184] #2: ffff888027d5cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.533549][ T184] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.543471][ T184] stack backtrace: [ 66.547188][ T184] CPU: 0 PID: 184 Comm: kworker/u4:4 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 66.557153][ T184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.567212][ T184] Workqueue: phy3 ieee80211_iface_work [ 66.572664][ T184] Call Trace: [ 66.575949][ T184] dump_stack+0x107/0x163 [ 66.580271][ T184] __lock_acquire.cold+0x310/0x3a2 [ 66.585380][ T184] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.591349][ T184] ? find_held_lock+0x2d/0x110 [ 66.596106][ T184] lock_acquire+0x2a3/0x8c0 [ 66.600609][ T184] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.606589][ T184] ? lock_release+0x710/0x710 [ 66.611302][ T184] __mutex_lock+0x134/0x10e0 [ 66.615890][ T184] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.621867][ T184] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.627849][ T184] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.633218][ T184] ? ieee80211_clear_fast_rx+0x58/0x80 [ 66.638702][ T184] ? mark_held_locks+0x9f/0xe0 [ 66.643465][ T184] ieee80211_recalc_min_chandef+0x49/0x140 [ 66.649280][ T184] sta_info_move_state+0x3cf/0x8d0 [ 66.654407][ T184] sta_info_free+0x65/0x3b0 [ 66.658902][ T184] sta_info_insert_rcu+0x303/0x2ba0 [ 66.664182][ T184] ? find_held_lock+0x2d/0x110 [ 66.668939][ T184] ? rate_control_rate_init+0x32c/0x6a0 [ 66.674489][ T184] ? sta_info_free+0x3b0/0x3b0 [ 66.679247][ T184] ? __local_bh_enable_ip+0x9c/0x110 [ 66.679987][ T8188] Bluetooth: hci0: command 0x0409 tx timeout [ 66.684527][ T184] ? rate_control_rate_init+0x35f/0x6a0 [ 66.696007][ T184] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.701644][ T184] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.707707][ T184] ? __local_bh_enable_ip+0x9c/0x110 [ 66.713006][ T184] ieee80211_ibss_work+0x2c7/0xe80 [ 66.718123][ T184] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.724454][ T184] ? mark_held_locks+0x9f/0xe0 [ 66.729215][ T184] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.735016][ T184] ? lockdep_hardirqs_on+0x79/0x100 [ 66.740208][ T184] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.746009][ T184] ieee80211_iface_work+0x91f/0xa90 [ 66.751242][ T184] process_one_work+0x933/0x15a0 [ 66.756179][ T184] ? lock_release+0x710/0x710 [ 66.760855][ T184] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.766223][ T184] ? rwlock_bug.part.0+0x90/0x90 [ 66.771152][ T184] ? _raw_spin_lock_irq+0x41/0x50 [ 66.776168][ T184] worker_thread+0x64c/0x1120 [ 66.780842][ T184] ? __kthread_parkme+0x13f/0x1e0 [ 66.785859][ T184] ? process_one_work+0x15a0/0x15a0 [ 66.791050][ T184] kthread+0x3af/0x4a0 [ 66.795112][ T184] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.800997][ T184] ret_from_fork+0x1f/0x30 [ 67.032020][ T112] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.125845][ T112] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.214504][ T112] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.304660][ T112] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.489608][ T112] device hsr_slave_0 left promiscuous mode [ 68.499242][ T112] device hsr_slave_1 left promiscuous mode [ 68.512418][ T112] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.523030][ T112] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.531969][ T112] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.539827][ T112] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.548159][ T112] device bridge_slave_1 left promiscuous mode [ 68.555412][ T112] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.564597][ T112] device bridge_slave_0 left promiscuous mode [ 68.571645][ T112] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.581644][ T112] device veth1_macvtap left promiscuous mode [ 68.587642][ T112] device veth0_macvtap left promiscuous mode [ 68.594135][ T112] device veth1_vlan left promiscuous mode [ 68.600204][ T112] device veth0_vlan left promiscuous mode executing program [ 69.485490][ T112] team0 (unregistering): Port device team_slave_1 removed [ 69.498316][ T112] team0 (unregistering): Port device team_slave_0 removed [ 69.508423][ T112] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.519730][ T112] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.546880][ T112] bond0 (unregistering): Released all slaves [ 69.634684][ T8485] can: request_module (can-proto-0) failed. [ 70.045019][ T8485] can: request_module (can-proto-0) failed. [ 70.054704][ T8485] can: request_module (can-proto-0) failed. [ 70.195277][ T8485] base_sock_release(000000008d4a15cd) sk=00000000c71a6360