[ 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 '10.128.0.12' (ECDSA) to the list of known hosts. 2020/11/08 02:27:54 fuzzer started 2020/11/08 02:27:55 connecting to host at 10.128.0.26:42971 2020/11/08 02:27:55 checking machine... 2020/11/08 02:27:55 checking revisions... 2020/11/08 02:27:55 testing simple program... syzkaller login: [ 65.924115][ T8517] IPVS: ftp: loaded support on port[0] = 21 [ 66.101821][ T8517] chnl_net:caif_netlink_parms(): no params data found [ 66.171958][ T8517] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.180982][ T8517] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.190194][ T8517] device bridge_slave_0 entered promiscuous mode [ 66.202010][ T8517] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.209292][ T8517] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.217562][ T8517] device bridge_slave_1 entered promiscuous mode [ 66.238612][ T8517] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.250252][ T8517] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.274647][ T8517] team0: Port device team_slave_0 added [ 66.283106][ T8517] team0: Port device team_slave_1 added [ 66.302138][ T8517] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.309959][ T8517] 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. [ 66.339496][ T8517] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.352786][ T8517] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.361496][ T8517] 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. [ 66.392453][ T8517] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.422129][ T8517] device hsr_slave_0 entered promiscuous mode [ 66.429749][ T8517] device hsr_slave_1 entered promiscuous mode [ 66.534507][ T8517] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.544720][ T8517] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.555011][ T8517] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.565340][ T8517] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.592780][ T8517] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.600455][ T8517] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.609061][ T8517] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.616578][ T8517] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.667243][ T8517] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.683628][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.697159][ T8736] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.705845][ T8736] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.715498][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.730332][ T8517] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.742262][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.754094][ T8736] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.763271][ T8736] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.779164][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.788369][ T3001] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.796805][ T3001] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.821408][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.831229][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.842905][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.857003][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.870464][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.883410][ T8517] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.903908][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.912186][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.925855][ T8517] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.946614][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.968912][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.978080][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.987865][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.000101][ T8517] device veth0_vlan entered promiscuous mode [ 67.013113][ T8517] device veth1_vlan entered promiscuous mode [ 67.035778][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.045241][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.054570][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.067731][ T8517] device veth0_macvtap entered promiscuous mode [ 67.078151][ T8517] device veth1_macvtap entered promiscuous mode [ 67.089183][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.106770][ T8517] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.114275][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.125395][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.137771][ T8517] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.146729][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.157399][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.169548][ T8517] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.179085][ T8517] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.189416][ T8517] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.199278][ T8517] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.290172][ T185] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.302687][ T185] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.315224][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.343183][ T185] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.352054][ T185] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.368143][ T8736] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.409669][ T189] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 67.428904][ T189] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 189, name: kworker/u4:5 [ 67.441949][ T189] 4 locks held by kworker/u4:5/189: [ 67.448458][ T189] #0: ffff88801c76e938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 67.463694][ T189] #1: ffffc9000172fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.479954][ T189] #2: ffff88801c064d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.490959][ T189] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.504944][ T189] Preemption disabled at: [ 67.504973][ T189] [] __mutex_lock+0x10f/0x10e0 [ 67.519785][ T189] CPU: 0 PID: 189 Comm: kworker/u4:5 Not tainted 5.10.0-rc2-syzkaller #0 [ 67.528858][ T189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.538936][ T189] Workqueue: phy3 ieee80211_iface_work [ 67.544398][ T189] Call Trace: [ 67.547695][ T189] dump_stack+0x107/0x163 [ 67.552042][ T189] ? __mutex_lock+0x10f/0x10e0 [ 67.556828][ T189] ___might_sleep.cold+0x1e8/0x22e [ 67.561944][ T189] sta_info_move_state+0x32/0x8d0 [ 67.566976][ T189] sta_info_free+0x65/0x3b0 [ 67.571691][ T189] sta_info_insert_rcu+0x303/0x2ba0 [ 67.576907][ T189] ? find_held_lock+0x2d/0x110 [ 67.581697][ T189] ? rate_control_rate_init+0x32c/0x6a0 [ 67.587252][ T189] ? sta_info_free+0x3b0/0x3b0 [ 67.592004][ T189] ? __local_bh_enable_ip+0x9c/0x110 [ 67.597302][ T189] ? rate_control_rate_init+0x35f/0x6a0 [ 67.602844][ T189] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.608465][ T189] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.614520][ T189] ? __local_bh_enable_ip+0x9c/0x110 [ 67.619810][ T189] ieee80211_ibss_work+0x2c7/0xe80 [ 67.624915][ T189] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.631263][ T189] ? mark_held_locks+0x9f/0xe0 [ 67.636025][ T189] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 67.641821][ T189] ? lockdep_hardirqs_on+0x79/0x100 [ 67.647025][ T189] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 67.652824][ T189] ieee80211_iface_work+0x82e/0x970 [ 67.658025][ T189] process_one_work+0x933/0x15a0 executing program [ 67.662957][ T189] ? lock_release+0x710/0x710 [ 67.667618][ T189] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.673156][ T189] ? rwlock_bug.part.0+0x90/0x90 [ 67.678273][ T189] ? _raw_spin_lock_irq+0x41/0x50 [ 67.683312][ T189] worker_thread+0x64c/0x1120 [ 67.687999][ T189] ? process_one_work+0x15a0/0x15a0 [ 67.693203][ T189] kthread+0x3af/0x4a0 [ 67.697264][ T189] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 67.703144][ T189] ret_from_fork+0x1f/0x30 2020/11/08 02:27:58 building call list... [ 67.721097][ T189] [ 67.723460][ T189] ============================= [ 67.728311][ T189] [ BUG: Invalid wait context ] [ 67.733152][ T189] 5.10.0-rc2-syzkaller #0 Tainted: G W [ 67.739983][ T189] ----------------------------- [ 67.744827][ T189] kworker/u4:5/189 is trying to lock: [ 67.750196][ T189] ffff888018ce29d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 67.760805][ T189] other info that might help us debug this: [ 67.766692][ T189] context-{4:4} [ 67.770146][ T189] 4 locks held by kworker/u4:5/189: [ 67.775737][ T189] #0: ffff88801c76e938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 67.785917][ T189] #1: ffffc9000172fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.797142][ T189] #2: ffff88801c064d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.806794][ T189] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.816701][ T189] stack backtrace: [ 67.820413][ T189] CPU: 0 PID: 189 Comm: kworker/u4:5 Tainted: G W 5.10.0-rc2-syzkaller #0 [ 67.830206][ T189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.840274][ T189] Workqueue: phy3 ieee80211_iface_work [ 67.845721][ T189] Call Trace: [ 67.849984][ T189] dump_stack+0x107/0x163 [ 67.854308][ T189] __lock_acquire.cold+0x310/0x3a2 [ 67.859410][ T189] ? debug_mutex_unlock+0xb3/0x250 [ 67.864538][ T189] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 67.870522][ T189] lock_acquire+0x2a3/0x8c0 [ 67.875014][ T189] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.881000][ T189] ? lock_release+0x710/0x710 [ 67.885671][ T189] __mutex_lock+0x134/0x10e0 [ 67.890258][ T189] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.896240][ T189] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.902226][ T189] ? mutex_lock_io_nested+0xf60/0xf60 [ 67.908112][ T189] ? ieee80211_clear_fast_rx+0x58/0x80 [ 67.913576][ T189] ? mark_held_locks+0x9f/0xe0 [ 67.918347][ T189] ieee80211_recalc_min_chandef+0x49/0x140 [ 67.924772][ T189] sta_info_move_state+0x3cf/0x8d0 [ 67.929882][ T189] sta_info_free+0x65/0x3b0 [ 67.934377][ T189] sta_info_insert_rcu+0x303/0x2ba0 [ 67.939568][ T189] ? find_held_lock+0x2d/0x110 [ 67.944324][ T189] ? rate_control_rate_init+0x32c/0x6a0 [ 67.949954][ T189] ? sta_info_free+0x3b0/0x3b0 [ 67.954709][ T189] ? __local_bh_enable_ip+0x9c/0x110 [ 67.959985][ T189] ? rate_control_rate_init+0x35f/0x6a0 [ 67.965522][ T189] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.971165][ T189] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.977312][ T189] ? __local_bh_enable_ip+0x9c/0x110 [ 67.982593][ T189] ieee80211_ibss_work+0x2c7/0xe80 [ 67.987793][ T189] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.994127][ T189] ? mark_held_locks+0x9f/0xe0 [ 67.998892][ T189] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 68.005158][ T189] ? lockdep_hardirqs_on+0x79/0x100 [ 68.010380][ T189] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 68.016189][ T189] ieee80211_iface_work+0x82e/0x970 [ 68.021390][ T189] process_one_work+0x933/0x15a0 [ 68.026324][ T189] ? lock_release+0x710/0x710 [ 68.030991][ T189] ? pwq_dec_nr_in_flight+0x320/0x320 [ 68.036440][ T189] ? rwlock_bug.part.0+0x90/0x90 [ 68.041372][ T189] ? _raw_spin_lock_irq+0x41/0x50 [ 68.046388][ T189] worker_thread+0x64c/0x1120 [ 68.051055][ T189] ? process_one_work+0x15a0/0x15a0 [ 68.056245][ T189] kthread+0x3af/0x4a0 [ 68.060306][ T189] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 68.066199][ T189] ret_from_fork+0x1f/0x30 [ 68.073505][ T8736] Bluetooth: hci0: command 0x0409 tx timeout [ 68.268393][ T189] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.371493][ T189] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.451578][ T189] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.539176][ T189] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.741052][ T189] device hsr_slave_0 left promiscuous mode [ 69.748547][ T189] device hsr_slave_1 left promiscuous mode [ 69.766189][ T189] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 69.773631][ T189] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 69.783102][ T189] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 69.791579][ T189] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 69.801467][ T189] device bridge_slave_1 left promiscuous mode [ 69.809566][ T189] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.818566][ T189] device bridge_slave_0 left promiscuous mode [ 69.827068][ T189] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.837824][ T189] device veth1_macvtap left promiscuous mode [ 69.843948][ T189] device veth0_macvtap left promiscuous mode [ 69.851638][ T189] device veth1_vlan left promiscuous mode [ 69.858423][ T189] device veth0_vlan left promiscuous mode executing program [ 70.820247][ T189] team0 (unregistering): Port device team_slave_1 removed [ 70.829807][ T189] team0 (unregistering): Port device team_slave_0 removed [ 70.841103][ T189] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 70.853699][ T189] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 70.880714][ T189] bond0 (unregistering): Released all slaves [ 71.012114][ T8513] can: request_module (can-proto-0) failed. [ 71.350166][ T8513] can: request_module (can-proto-0) failed. [ 71.360245][ T8513] can: request_module (can-proto-0) failed. [ 71.509848][ T8513] base_sock_release(00000000be7b20a0) sk=0000000096a5e4fa