[ 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 '10.128.10.9' (ECDSA) to the list of known hosts. 2020/11/17 17:40:43 fuzzer started 2020/11/17 17:40:43 connecting to host at 10.128.0.26:39917 2020/11/17 17:40:43 checking machine... 2020/11/17 17:40:43 checking revisions... 2020/11/17 17:40:43 testing simple program... syzkaller login: [ 62.401448][ T8483] IPVS: ftp: loaded support on port[0] = 21 [ 62.591234][ T8483] chnl_net:caif_netlink_parms(): no params data found [ 62.651487][ T8483] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.659929][ T8483] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.668660][ T8483] device bridge_slave_0 entered promiscuous mode [ 62.678001][ T8483] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.685082][ T8483] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.693347][ T8483] device bridge_slave_1 entered promiscuous mode [ 62.714108][ T8483] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.725015][ T8483] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.748662][ T8483] team0: Port device team_slave_0 added [ 62.756487][ T8483] team0: Port device team_slave_1 added [ 62.775313][ T8483] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.782394][ T8483] 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. [ 62.808355][ T8483] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.820991][ T8483] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.828113][ T8483] 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. [ 62.854355][ T8483] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.881392][ T8483] device hsr_slave_0 entered promiscuous mode [ 62.888104][ T8483] device hsr_slave_1 entered promiscuous mode [ 62.986342][ T8483] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.996596][ T8483] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.006777][ T8483] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.016133][ T8483] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.042179][ T8483] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.049349][ T8483] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.057410][ T8483] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.064469][ T8483] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.111102][ T8483] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.124910][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.138451][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.147119][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.154972][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.168583][ T8483] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.181556][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.190286][ T3001] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.197511][ T3001] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.217713][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.227204][ T3001] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.234237][ T3001] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.257426][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.266522][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.274774][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.283229][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.291694][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.303482][ T8483] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.322451][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.330624][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.343982][ T8483] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.363659][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.383409][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.392334][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.401102][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.412190][ T8483] device veth0_vlan entered promiscuous mode [ 63.425556][ T8483] device veth1_vlan entered promiscuous mode [ 63.448100][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.457088][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.465155][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.476714][ T8483] device veth0_macvtap entered promiscuous mode [ 63.487134][ T8483] device veth1_macvtap entered promiscuous mode [ 63.506163][ T8483] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.513547][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.524986][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.538852][ T8483] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.546629][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.558811][ T8483] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.569109][ T8483] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.578368][ T8483] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.587563][ T8483] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.664600][ T166] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.679417][ T166] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.702358][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 63.724457][ T27] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 63.739052][ T27] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 63.748725][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 63.788598][ T166] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 63.801098][ T166] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 166, name: kworker/u4:4 [ 63.810862][ T166] 4 locks held by kworker/u4:4/166: [ 63.818279][ T166] #0: ffff88802733e138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 63.829003][ T166] #1: ffffc9000126fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 2020/11/17 17:40:46 building call list... [ 63.866165][ T166] #2: ffff88802f6c8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 63.879306][ T166] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 63.903638][ T166] Preemption disabled at: [ 63.903667][ T166] [] __mutex_lock+0x10f/0x10e0 [ 63.920114][ T166] CPU: 1 PID: 166 Comm: kworker/u4:4 Not tainted 5.10.0-rc3-syzkaller #0 [ 63.928538][ T166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.938610][ T166] Workqueue: phy3 ieee80211_iface_work [ 63.944078][ T166] Call Trace: [ 63.947379][ T166] dump_stack+0x107/0x163 [ 63.951714][ T166] ? __mutex_lock+0x10f/0x10e0 [ 63.956481][ T166] ___might_sleep.cold+0x1e8/0x22e [ 63.961598][ T166] sta_info_move_state+0x32/0x8d0 [ 63.966633][ T166] sta_info_free+0x65/0x3b0 [ 63.971145][ T166] sta_info_insert_rcu+0x303/0x2ba0 [ 63.976350][ T166] ? find_held_lock+0x2d/0x110 [ 63.981131][ T166] ? rate_control_rate_init+0x32c/0x6a0 [ 63.986687][ T166] ? sta_info_free+0x3b0/0x3b0 [ 63.991454][ T166] ? __local_bh_enable_ip+0x9c/0x110 [ 63.996749][ T166] ? rate_control_rate_init+0x35f/0x6a0 [ 64.002304][ T166] ieee80211_ibss_finish_sta+0x212/0x390 [ 64.007944][ T166] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 64.014020][ T166] ? __local_bh_enable_ip+0x9c/0x110 [ 64.019316][ T166] ieee80211_ibss_work+0x2c7/0xe80 [ 64.024468][ T166] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 64.030810][ T166] ? mark_held_locks+0x9f/0xe0 [ 64.035582][ T166] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 64.041396][ T166] ? lockdep_hardirqs_on+0x79/0x100 [ 64.046601][ T166] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 64.052421][ T166] ieee80211_iface_work+0x91f/0xa90 [ 64.057635][ T166] process_one_work+0x933/0x15a0 [ 64.062586][ T166] ? lock_release+0x710/0x710 executing program [ 64.067264][ T166] ? pwq_dec_nr_in_flight+0x320/0x320 [ 64.072644][ T166] ? rwlock_bug.part.0+0x90/0x90 [ 64.077606][ T166] ? _raw_spin_lock_irq+0x41/0x50 [ 64.082643][ T166] worker_thread+0x64c/0x1120 [ 64.087338][ T166] ? process_one_work+0x15a0/0x15a0 [ 64.092541][ T166] kthread+0x3af/0x4a0 [ 64.096610][ T166] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 64.102515][ T166] ret_from_fork+0x1f/0x30 [ 64.112200][ T166] [ 64.114535][ T166] ============================= [ 64.119376][ T166] [ BUG: Invalid wait context ] [ 64.124215][ T166] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 64.130958][ T166] ----------------------------- [ 64.135795][ T166] kworker/u4:4/166 is trying to lock: [ 64.141148][ T166] ffff88801b7e29d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 64.151748][ T166] other info that might help us debug this: [ 64.157646][ T166] context-{4:4} [ 64.161123][ T166] 4 locks held by kworker/u4:4/166: [ 64.166306][ T166] #0: ffff88802733e138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 64.176479][ T166] #1: ffffc9000126fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 64.187691][ T166] #2: ffff88802f6c8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 64.197168][ T166] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 64.207074][ T166] stack backtrace: [ 64.210795][ T166] CPU: 1 PID: 166 Comm: kworker/u4:4 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 64.220578][ T166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.230628][ T166] Workqueue: phy3 ieee80211_iface_work [ 64.236072][ T166] Call Trace: [ 64.239362][ T166] dump_stack+0x107/0x163 [ 64.243683][ T166] __lock_acquire.cold+0x310/0x3a2 [ 64.248794][ T166] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 64.254762][ T166] ? find_held_lock+0x2d/0x110 [ 64.259529][ T166] lock_acquire+0x2a3/0x8c0 [ 64.264026][ T166] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.270003][ T166] ? lock_release+0x710/0x710 [ 64.274678][ T166] __mutex_lock+0x134/0x10e0 [ 64.279260][ T166] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.285249][ T166] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.291235][ T166] ? mutex_lock_io_nested+0xf60/0xf60 [ 64.296600][ T166] ? ieee80211_clear_fast_rx+0x58/0x80 [ 64.302051][ T166] ? mark_held_locks+0x9f/0xe0 [ 64.306815][ T166] ieee80211_recalc_min_chandef+0x49/0x140 [ 64.312611][ T166] sta_info_move_state+0x3cf/0x8d0 [ 64.317712][ T166] sta_info_free+0x65/0x3b0 [ 64.322217][ T166] sta_info_insert_rcu+0x303/0x2ba0 [ 64.327421][ T166] ? find_held_lock+0x2d/0x110 [ 64.332194][ T166] ? rate_control_rate_init+0x32c/0x6a0 [ 64.337738][ T166] ? sta_info_free+0x3b0/0x3b0 [ 64.342496][ T166] ? __local_bh_enable_ip+0x9c/0x110 [ 64.347777][ T166] ? rate_control_rate_init+0x35f/0x6a0 [ 64.353326][ T166] ieee80211_ibss_finish_sta+0x212/0x390 [ 64.358959][ T166] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 64.365019][ T166] ? __local_bh_enable_ip+0x9c/0x110 [ 64.370301][ T166] ieee80211_ibss_work+0x2c7/0xe80 [ 64.375410][ T166] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 64.381732][ T166] ? mark_held_locks+0x9f/0xe0 [ 64.386510][ T166] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 64.392310][ T166] ? lockdep_hardirqs_on+0x79/0x100 [ 64.397500][ T166] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 64.403302][ T166] ieee80211_iface_work+0x91f/0xa90 [ 64.408498][ T166] process_one_work+0x933/0x15a0 [ 64.413429][ T166] ? lock_release+0x710/0x710 [ 64.418101][ T166] ? pwq_dec_nr_in_flight+0x320/0x320 [ 64.423467][ T166] ? rwlock_bug.part.0+0x90/0x90 [ 64.428406][ T166] ? _raw_spin_lock_irq+0x41/0x50 [ 64.433421][ T166] worker_thread+0x64c/0x1120 [ 64.438098][ T166] ? process_one_work+0x15a0/0x15a0 [ 64.443288][ T166] kthread+0x3af/0x4a0 [ 64.447349][ T166] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 64.453234][ T166] ret_from_fork+0x1f/0x30 [ 64.459269][ T3081] Bluetooth: hci0: command 0x0409 tx timeout [ 64.631668][ T166] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.749954][ T166] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.840392][ T166] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 64.931109][ T166] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.123821][ T166] device hsr_slave_0 left promiscuous mode [ 66.137036][ T166] device hsr_slave_1 left promiscuous mode [ 66.147665][ T166] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.156983][ T166] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.164910][ T166] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.173515][ T166] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.182561][ T166] device bridge_slave_1 left promiscuous mode [ 66.189191][ T166] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.197590][ T166] device bridge_slave_0 left promiscuous mode [ 66.203702][ T166] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.212978][ T166] device veth1_macvtap left promiscuous mode [ 66.219352][ T166] device veth0_macvtap left promiscuous mode [ 66.225627][ T166] device veth1_vlan left promiscuous mode [ 66.231338][ T166] device veth0_vlan left promiscuous mode executing program [ 67.123945][ T166] team0 (unregistering): Port device team_slave_1 removed [ 67.133360][ T166] team0 (unregistering): Port device team_slave_0 removed [ 67.143467][ T166] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 67.157042][ T166] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 67.183470][ T166] bond0 (unregistering): Released all slaves [ 67.257937][ T8481] can: request_module (can-proto-0) failed. [ 67.670520][ T8481] can: request_module (can-proto-0) failed. [ 67.680106][ T8481] can: request_module (can-proto-0) failed.