[ 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 '10.128.10.8' (ECDSA) to the list of known hosts. 2020/11/03 00:11:55 fuzzer started 2020/11/03 00:11:56 dialing manager at 10.128.0.26:44275 2020/11/03 00:11:56 checking machine... 2020/11/03 00:11:56 checking revisions... 2020/11/03 00:11:56 testing simple program... syzkaller login: [ 64.597536][ T8489] IPVS: ftp: loaded support on port[0] = 21 [ 64.804135][ T8489] chnl_net:caif_netlink_parms(): no params data found [ 64.855854][ T8489] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.864589][ T8489] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.873737][ T8489] device bridge_slave_0 entered promiscuous mode [ 64.882900][ T8489] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.890655][ T8489] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.899066][ T8489] device bridge_slave_1 entered promiscuous mode [ 64.919732][ T8489] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.930568][ T8489] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.953420][ T8489] team0: Port device team_slave_0 added [ 64.960911][ T8489] team0: Port device team_slave_1 added [ 64.979124][ T8489] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.986074][ T8489] 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. [ 65.012030][ T8489] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.024593][ T8489] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.031673][ T8489] 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. [ 65.057646][ T8489] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.085193][ T8489] device hsr_slave_0 entered promiscuous mode [ 65.091875][ T8489] device hsr_slave_1 entered promiscuous mode [ 65.187918][ T8489] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.198918][ T8489] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.208881][ T8489] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.219027][ T8489] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.243136][ T8489] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.250466][ T8489] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.258045][ T8489] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.265239][ T8489] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.314267][ T8489] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.329736][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.340871][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.349646][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.357393][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.370320][ T8489] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.382993][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.391925][ T23] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.399239][ T23] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.421975][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.432308][ T8710] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.439490][ T8710] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.447625][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.470825][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.479243][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.487817][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.496240][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.506204][ T8489] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.525323][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.533314][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.547052][ T8489] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.567383][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.587181][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.596975][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.606169][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.617264][ T8489] device veth0_vlan entered promiscuous mode [ 65.631215][ T8489] device veth1_vlan entered promiscuous mode [ 65.653239][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.662174][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.670948][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.681545][ T8489] device veth0_macvtap entered promiscuous mode [ 65.692530][ T8489] device veth1_macvtap entered promiscuous mode [ 65.710783][ T8489] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.719110][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.730661][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.743335][ T8489] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.753758][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.765300][ T8489] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.775502][ T8489] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.784517][ T8489] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.793455][ T8489] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.892185][ T124] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.907874][ T124] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.932565][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.954192][ T124] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.962670][ T124] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.972692][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.012916][ T124] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 66.038848][ T124] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 124, name: kworker/u4:3 [ 66.049983][ T124] 4 locks held by kworker/u4:3/124: [ 66.055281][ T124] #0: ffff88801d575138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.068565][ T124] #1: ffffc9000136fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.098038][ T124] #2: ffff88801df1cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 2020/11/03 00:11:58 building call list... [ 66.107588][ T124] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.138038][ T124] Preemption disabled at: [ 66.138067][ T124] [] __mutex_lock+0x10f/0x10e0 [ 66.168028][ T124] CPU: 0 PID: 124 Comm: kworker/u4:3 Not tainted 5.10.0-rc1-syzkaller #0 [ 66.176476][ T124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program [ 66.186555][ T124] Workqueue: phy3 ieee80211_iface_work [ 66.192023][ T124] Call Trace: [ 66.195323][ T124] dump_stack+0x107/0x163 [ 66.199663][ T124] ? __mutex_lock+0x10f/0x10e0 [ 66.204441][ T124] ___might_sleep.cold+0x1e8/0x22e [ 66.209563][ T124] sta_info_move_state+0x32/0x8d0 [ 66.214606][ T124] sta_info_free+0x65/0x3b0 [ 66.219122][ T124] sta_info_insert_rcu+0x303/0x2ba0 [ 66.224330][ T124] ? find_held_lock+0x2d/0x110 [ 66.229112][ T124] ? rate_control_rate_init+0x32c/0x6a0 [ 66.234671][ T124] ? sta_info_free+0x3b0/0x3b0 [ 66.239438][ T124] ? __local_bh_enable_ip+0x9c/0x110 [ 66.244735][ T124] ? rate_control_rate_init+0x35f/0x6a0 [ 66.250293][ T124] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.255940][ T124] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.263499][ T124] ? __local_bh_enable_ip+0x9c/0x110 [ 66.268819][ T124] ieee80211_ibss_work+0x2c7/0xe80 [ 66.273952][ T124] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.280293][ T124] ? mark_held_locks+0x9f/0xe0 [ 66.285067][ T124] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.290882][ T124] ? lockdep_hardirqs_on+0x85/0x110 [ 66.296086][ T124] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.301908][ T124] ieee80211_iface_work+0x82e/0x970 [ 66.307121][ T124] process_one_work+0x933/0x15a0 [ 66.312095][ T124] ? lock_release+0x710/0x710 [ 66.316788][ T124] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.322272][ T124] ? rwlock_bug.part.0+0x90/0x90 [ 66.327243][ T124] ? _raw_spin_lock_irq+0x41/0x50 [ 66.332283][ T124] worker_thread+0x64c/0x1120 [ 66.337003][ T124] ? process_one_work+0x15a0/0x15a0 [ 66.342207][ T124] kthread+0x3af/0x4a0 [ 66.346283][ T124] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.352201][ T124] ret_from_fork+0x1f/0x30 [ 66.399271][ T124] [ 66.401640][ T124] ============================= [ 66.406574][ T124] [ BUG: Invalid wait context ] [ 66.411417][ T124] 5.10.0-rc1-syzkaller #0 Tainted: G W [ 66.418166][ T124] ----------------------------- [ 66.423005][ T124] kworker/u4:3/124 is trying to lock: [ 66.428364][ T124] ffff88801c1929d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 66.438969][ T124] other info that might help us debug this: [ 66.444847][ T124] context-{4:4} [ 66.448299][ T124] 4 locks held by kworker/u4:3/124: [ 66.453479][ T124] #0: ffff88801d575138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.463652][ T124] #1: ffffc9000136fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.474889][ T124] #2: ffff88801df1cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.484369][ T124] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.494283][ T124] stack backtrace: [ 66.498001][ T124] CPU: 0 PID: 124 Comm: kworker/u4:3 Tainted: G W 5.10.0-rc1-syzkaller #0 [ 66.507789][ T124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.517844][ T124] Workqueue: phy3 ieee80211_iface_work [ 66.523298][ T124] Call Trace: [ 66.526588][ T124] dump_stack+0x107/0x163 [ 66.530913][ T124] __lock_acquire.cold+0x310/0x3a2 [ 66.536023][ T124] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 66.541992][ T124] ? find_held_lock+0x2d/0x110 [ 66.546760][ T124] lock_acquire+0x1af/0x8b0 [ 66.551261][ T124] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.557235][ T124] ? lock_release+0x710/0x710 [ 66.561911][ T124] __mutex_lock+0x134/0x10e0 [ 66.566520][ T124] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.572498][ T124] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.579183][ T124] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.584595][ T124] ? ieee80211_clear_fast_rx+0x58/0x80 [ 66.590578][ T124] ? mark_held_locks+0x9f/0xe0 [ 66.595349][ T124] ieee80211_recalc_min_chandef+0x49/0x140 [ 66.601158][ T124] sta_info_move_state+0x3cf/0x8d0 [ 66.606264][ T124] sta_info_free+0x65/0x3b0 [ 66.610762][ T124] sta_info_insert_rcu+0x303/0x2ba0 [ 66.615976][ T124] ? find_held_lock+0x2d/0x110 [ 66.620738][ T124] ? rate_control_rate_init+0x32c/0x6a0 [ 66.626283][ T124] ? sta_info_free+0x3b0/0x3b0 [ 66.631056][ T124] ? __local_bh_enable_ip+0x9c/0x110 [ 66.636339][ T124] ? rate_control_rate_init+0x35f/0x6a0 [ 66.641883][ T124] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.647528][ T124] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.653588][ T124] ? __local_bh_enable_ip+0x9c/0x110 [ 66.658870][ T124] ieee80211_ibss_work+0x2c7/0xe80 [ 66.663997][ T124] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.670321][ T124] ? mark_held_locks+0x9f/0xe0 [ 66.675082][ T124] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.682883][ T124] ? lockdep_hardirqs_on+0x85/0x110 [ 66.688075][ T124] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.693879][ T124] ieee80211_iface_work+0x82e/0x970 [ 66.699077][ T124] process_one_work+0x933/0x15a0 [ 66.704012][ T124] ? lock_release+0x710/0x710 [ 66.708679][ T124] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.714042][ T124] ? rwlock_bug.part.0+0x90/0x90 [ 66.718972][ T124] ? _raw_spin_lock_irq+0x41/0x50 [ 66.723992][ T124] worker_thread+0x64c/0x1120 [ 66.728664][ T124] ? process_one_work+0x15a0/0x15a0 [ 66.733858][ T124] kthread+0x3af/0x4a0 [ 66.737935][ T124] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.743825][ T124] ret_from_fork+0x1f/0x30 [ 66.750724][ T5] Bluetooth: hci0: command 0x0409 tx timeout [ 66.939520][ T260] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.036660][ T260] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.141849][ T260] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.235357][ T260] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.452614][ T260] device hsr_slave_0 left promiscuous mode [ 68.460013][ T260] device hsr_slave_1 left promiscuous mode [ 68.468737][ T260] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.477192][ T260] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.490169][ T260] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.497593][ T260] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.506661][ T260] device bridge_slave_1 left promiscuous mode [ 68.513710][ T260] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.522880][ T260] device bridge_slave_0 left promiscuous mode [ 68.530072][ T260] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.539979][ T260] device veth1_macvtap left promiscuous mode [ 68.545977][ T260] device veth0_macvtap left promiscuous mode [ 68.552252][ T260] device veth1_vlan left promiscuous mode [ 68.558226][ T260] device veth0_vlan left promiscuous mode executing program [ 69.390434][ T260] team0 (unregistering): Port device team_slave_1 removed [ 69.400127][ T260] team0 (unregistering): Port device team_slave_0 removed [ 69.412458][ T260] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.423835][ T260] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.450459][ T260] bond0 (unregistering): Released all slaves [ 69.567306][ T8485] can: request_module (can-proto-0) failed. [ 69.911633][ T8485] can: request_module (can-proto-0) failed. [ 69.921587][ T8485] can: request_module (can-proto-0) failed. [ 70.062856][ T8485] base_sock_release(0000000079785fca) sk=000000002d69d770