[ 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 '10.128.0.87' (ECDSA) to the list of known hosts. 2020/11/09 11:36:27 fuzzer started 2020/11/09 11:36:27 connecting to host at 10.128.0.26:41447 2020/11/09 11:36:27 checking machine... 2020/11/09 11:36:27 checking revisions... 2020/11/09 11:36:27 testing simple program... syzkaller login: [ 66.344391][ T8543] IPVS: ftp: loaded support on port[0] = 21 [ 66.477309][ T8543] chnl_net:caif_netlink_parms(): no params data found [ 66.531372][ T8543] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.539254][ T8543] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.548557][ T8543] device bridge_slave_0 entered promiscuous mode [ 66.558531][ T8543] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.565666][ T8543] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.574174][ T8543] device bridge_slave_1 entered promiscuous mode [ 66.595320][ T8543] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.606305][ T8543] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.630320][ T8543] team0: Port device team_slave_0 added [ 66.638519][ T8543] team0: Port device team_slave_1 added [ 66.656116][ T8543] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.663104][ T8543] 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. [ 66.689053][ T8543] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.701967][ T8543] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.709028][ T8543] 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. [ 66.735020][ T8543] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.763093][ T8543] device hsr_slave_0 entered promiscuous mode [ 66.769800][ T8543] device hsr_slave_1 entered promiscuous mode [ 66.869362][ T8543] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.881481][ T8543] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.892012][ T8543] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.902288][ T8543] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.930624][ T8543] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.937910][ T8543] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.945811][ T8543] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.953147][ T8543] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.002833][ T8543] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.017727][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.030633][ T23] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.039276][ T23] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.050279][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.063188][ T8543] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.076306][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.085299][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.092499][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.116965][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.125548][ T23] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.133015][ T23] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.142157][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.161253][ T8543] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.171944][ T8543] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.188277][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.197836][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.207060][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.216147][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.227496][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.252092][ T8543] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.261127][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.270456][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.292741][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.313232][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.322635][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.330536][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.340894][ T8543] device veth0_vlan entered promiscuous mode [ 67.353771][ T8543] device veth1_vlan entered promiscuous mode [ 67.378375][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.388311][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.397584][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.408935][ T8543] device veth0_macvtap entered promiscuous mode [ 67.420198][ T8543] device veth1_macvtap entered promiscuous mode [ 67.447338][ T8543] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.455190][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.466837][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.478961][ T8543] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.486999][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.495562][ T3000] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.509125][ T8543] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.519116][ T8543] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.528905][ T8543] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.537685][ T8543] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.642871][ T218] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.658355][ T218] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.682086][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.704852][ T27] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.713977][ T27] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.746692][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 67.798409][ T218] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 67.810981][ T218] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 218, name: kworker/u4:4 [ 67.822554][ T218] 4 locks held by kworker/u4:4/218: [ 67.828652][ T218] #0: ffff88801c3b1138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 67.840694][ T218] #1: ffffc9000190fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.854621][ T218] #2: ffff88801833cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.866046][ T218] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.887870][ T218] Preemption disabled at: [ 67.887900][ T218] [] __mutex_lock+0x10f/0x10e0 [ 67.901088][ T218] CPU: 0 PID: 218 Comm: kworker/u4:4 Not tainted 5.10.0-rc3-syzkaller #0 [ 67.909511][ T218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.919556][ T218] Workqueue: phy3 ieee80211_iface_work [ 67.924992][ T218] Call Trace: [ 67.928270][ T218] dump_stack+0x107/0x163 [ 67.932584][ T218] ? __mutex_lock+0x10f/0x10e0 [ 67.937344][ T218] ___might_sleep.cold+0x1e8/0x22e [ 67.942441][ T218] sta_info_move_state+0x32/0x8d0 [ 67.947467][ T218] sta_info_free+0x65/0x3b0 [ 67.951953][ T218] sta_info_insert_rcu+0x303/0x2ba0 [ 67.957150][ T218] ? find_held_lock+0x2d/0x110 [ 67.961906][ T218] ? rate_control_rate_init+0x32c/0x6a0 [ 67.967454][ T218] ? sta_info_free+0x3b0/0x3b0 [ 67.972200][ T218] ? __local_bh_enable_ip+0x9c/0x110 [ 67.977502][ T218] ? rate_control_rate_init+0x35f/0x6a0 [ 67.983055][ T218] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.988673][ T218] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.994729][ T218] ? __local_bh_enable_ip+0x9c/0x110 [ 68.000018][ T218] ieee80211_ibss_work+0x2c7/0xe80 [ 68.005118][ T218] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 68.011430][ T218] ? mark_held_locks+0x9f/0xe0 [ 68.016176][ T218] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 68.021999][ T218] ? lockdep_hardirqs_on+0x79/0x100 [ 68.027201][ T218] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 68.033006][ T218] ieee80211_iface_work+0x82e/0x970 [ 68.038192][ T218] process_one_work+0x933/0x15a0 [ 68.043124][ T218] ? lock_release+0x710/0x710 [ 68.047795][ T218] ? pwq_dec_nr_in_flight+0x320/0x320 [ 68.053165][ T218] ? rwlock_bug.part.0+0x90/0x90 [ 68.058088][ T218] ? _raw_spin_lock_irq+0x41/0x50 [ 68.063112][ T218] worker_thread+0x64c/0x1120 [ 68.067777][ T218] ? process_one_work+0x15a0/0x15a0 [ 68.072955][ T218] kthread+0x3af/0x4a0 [ 68.077010][ T218] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 68.082894][ T218] ret_from_fork+0x1f/0x30 [ 68.099994][ T218] 2020/11/09 11:36:31 building call list... [ 68.102340][ T218] ============================= [ 68.107174][ T218] [ BUG: Invalid wait context ] [ 68.112019][ T218] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 68.118770][ T218] ----------------------------- [ 68.123619][ T218] kworker/u4:4/218 is trying to lock: [ 68.128991][ T218] ffff88801c58a9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 68.139608][ T218] other info that might help us debug this: [ 68.145510][ T218] context-{4:4} [ 68.148969][ T218] 4 locks held by kworker/u4:4/218: [ 68.154196][ T218] #0: ffff88801c3b1138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 68.164540][ T218] #1: ffffc9000190fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 68.175779][ T218] #2: ffff88801833cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 68.185277][ T218] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 68.195206][ T218] stack backtrace: [ 68.198935][ T218] CPU: 0 PID: 218 Comm: kworker/u4:4 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 68.208732][ T218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.218801][ T218] Workqueue: phy3 ieee80211_iface_work [ 68.224261][ T218] Call Trace: [ 68.227560][ T218] dump_stack+0x107/0x163 [ 68.231897][ T218] __lock_acquire.cold+0x310/0x3a2 [ 68.237019][ T218] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 68.243006][ T218] ? find_held_lock+0x2d/0x110 [ 68.247783][ T218] lock_acquire+0x2a3/0x8c0 [ 68.252300][ T218] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 68.258289][ T218] ? lock_release+0x710/0x710 [ 68.262978][ T218] __mutex_lock+0x134/0x10e0 [ 68.267579][ T218] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 68.273564][ T218] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 68.279546][ T218] ? mutex_lock_io_nested+0xf60/0xf60 [ 68.285537][ T218] ? ieee80211_clear_fast_rx+0x58/0x80 [ 68.291177][ T218] ? mark_held_locks+0x9f/0xe0 [ 68.295947][ T218] ieee80211_recalc_min_chandef+0x49/0x140 [ 68.296481][ T23] Bluetooth: hci0: command 0x0409 tx timeout [ 68.301853][ T218] sta_info_move_state+0x3cf/0x8d0 [ 68.301872][ T218] sta_info_free+0x65/0x3b0 [ 68.317423][ T218] sta_info_insert_rcu+0x303/0x2ba0 [ 68.322628][ T218] ? find_held_lock+0x2d/0x110 [ 68.327404][ T218] ? rate_control_rate_init+0x32c/0x6a0 [ 68.332955][ T218] ? sta_info_free+0x3b0/0x3b0 [ 68.337719][ T218] ? __local_bh_enable_ip+0x9c/0x110 [ 68.343011][ T218] ? rate_control_rate_init+0x35f/0x6a0 [ 68.348566][ T218] ieee80211_ibss_finish_sta+0x212/0x390 [ 68.354217][ T218] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 68.360293][ T218] ? __local_bh_enable_ip+0x9c/0x110 [ 68.365582][ T218] ieee80211_ibss_work+0x2c7/0xe80 [ 68.370694][ T218] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 68.377025][ T218] ? mark_held_locks+0x9f/0xe0 [ 68.381801][ T218] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 68.387781][ T218] ? lockdep_hardirqs_on+0x79/0x100 [ 68.392977][ T218] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 68.398782][ T218] ieee80211_iface_work+0x82e/0x970 [ 68.403981][ T218] process_one_work+0x933/0x15a0 [ 68.408917][ T218] ? lock_release+0x710/0x710 [ 68.413594][ T218] ? pwq_dec_nr_in_flight+0x320/0x320 [ 68.418966][ T218] ? rwlock_bug.part.0+0x90/0x90 [ 68.423899][ T218] ? _raw_spin_lock_irq+0x41/0x50 [ 68.428917][ T218] worker_thread+0x64c/0x1120 [ 68.433592][ T218] ? process_one_work+0x15a0/0x15a0 [ 68.438785][ T218] kthread+0x3af/0x4a0 [ 68.442864][ T218] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 68.448767][ T218] ret_from_fork+0x1f/0x30 [ 68.624504][ T27] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.719862][ T27] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.812905][ T27] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.901853][ T27] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.138327][ T27] device hsr_slave_0 left promiscuous mode [ 70.147127][ T27] device hsr_slave_1 left promiscuous mode [ 70.161028][ T27] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 70.172129][ T27] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 70.180965][ T27] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 70.189617][ T27] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 70.198422][ T27] device bridge_slave_1 left promiscuous mode [ 70.204653][ T27] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.214427][ T27] device bridge_slave_0 left promiscuous mode [ 70.221619][ T27] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.232536][ T27] device veth1_macvtap left promiscuous mode [ 70.239248][ T27] device veth0_macvtap left promiscuous mode [ 70.245263][ T27] device veth1_vlan left promiscuous mode [ 70.252421][ T27] device veth0_vlan left promiscuous mode executing program [ 71.264367][ T27] team0 (unregistering): Port device team_slave_1 removed [ 71.273949][ T27] team0 (unregistering): Port device team_slave_0 removed [ 71.284044][ T27] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 71.298223][ T27] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 71.326177][ T27] bond0 (unregistering): Released all slaves [ 71.459065][ T8519] can: request_module (can-proto-0) failed. [ 71.804571][ T8519] can: request_module (can-proto-0) failed. [ 71.814503][ T8519] can: request_module (can-proto-0) failed.