[ 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 '10.128.0.77' (ECDSA) to the list of known hosts. 2020/11/07 12:55:29 fuzzer started 2020/11/07 12:55:29 connecting to host at 10.128.0.26:43409 2020/11/07 12:55:29 checking machine... 2020/11/07 12:55:29 checking revisions... 2020/11/07 12:55:29 testing simple program... syzkaller login: [ 63.880893][ T8493] IPVS: ftp: loaded support on port[0] = 21 [ 63.997116][ T8493] chnl_net:caif_netlink_parms(): no params data found [ 64.049876][ T8493] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.057825][ T8493] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.066608][ T8493] device bridge_slave_0 entered promiscuous mode [ 64.076365][ T8493] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.083778][ T8493] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.092245][ T8493] device bridge_slave_1 entered promiscuous mode [ 64.113117][ T8493] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.123934][ T8493] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.146922][ T8493] team0: Port device team_slave_0 added [ 64.154914][ T8493] team0: Port device team_slave_1 added [ 64.173071][ T8493] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.180020][ T8493] 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. [ 64.206029][ T8493] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.218837][ T8493] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.225968][ T8493] 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. [ 64.251978][ T8493] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.279364][ T8493] device hsr_slave_0 entered promiscuous mode [ 64.286649][ T8493] device hsr_slave_1 entered promiscuous mode [ 64.387387][ T8493] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.398797][ T8493] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.408730][ T8493] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.419501][ T8493] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.445074][ T8493] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.452402][ T8493] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.460045][ T8493] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.467182][ T8493] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.514753][ T8493] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.527336][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.539396][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.548803][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.557381][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 64.570199][ T8493] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.583471][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.593051][ T23] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.600103][ T23] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.621416][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.629708][ T23] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.636837][ T23] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.646721][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.664320][ T8493] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.675717][ T8493] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.690043][ T8703] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.698558][ T8703] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.707151][ T8703] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.718146][ T8703] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.727742][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.744654][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.753370][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.767411][ T8493] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.794041][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.810341][ T8493] device veth0_vlan entered promiscuous mode [ 64.818536][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.828380][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.836842][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.851325][ T8493] device veth1_vlan entered promiscuous mode [ 64.872867][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.881097][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.889627][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.902756][ T8493] device veth0_macvtap entered promiscuous mode [ 64.913551][ T8493] device veth1_macvtap entered promiscuous mode [ 64.932796][ T8493] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.942123][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.953167][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.964683][ T8493] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 64.973433][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.985626][ T8493] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.995371][ T8493] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.004239][ T8493] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.013091][ T8493] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.107094][ T28] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.122761][ T28] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.143480][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.165284][ T281] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.173356][ T281] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.183577][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.205238][ T281] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 65.215054][ T281] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 281, name: kworker/u4:6 [ 65.225874][ T281] 4 locks held by kworker/u4:6/281: [ 65.231654][ T281] #0: ffff8880153e8938 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.242803][ T281] #1: ffffc90001cdfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.254752][ T281] #2: ffff88801ad68d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.265138][ T281] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.276735][ T281] Preemption disabled at: [ 65.276763][ T281] [] __mutex_lock+0x10f/0x10e0 [ 65.288042][ T281] CPU: 0 PID: 281 Comm: kworker/u4:6 Not tainted 5.10.0-rc2-syzkaller #0 [ 65.296441][ T281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.306511][ T281] Workqueue: phy4 ieee80211_iface_work [ 65.311960][ T281] Call Trace: [ 65.315238][ T281] dump_stack+0x107/0x163 [ 65.319551][ T281] ? __mutex_lock+0x10f/0x10e0 [ 65.324343][ T281] ___might_sleep.cold+0x1e8/0x22e [ 65.329438][ T281] sta_info_move_state+0x32/0x8d0 [ 65.334465][ T281] sta_info_free+0x65/0x3b0 [ 65.338953][ T281] sta_info_insert_rcu+0x303/0x2ba0 [ 65.344133][ T281] ? find_held_lock+0x2d/0x110 [ 65.348882][ T281] ? rate_control_rate_init+0x32c/0x6a0 [ 65.354411][ T281] ? sta_info_free+0x3b0/0x3b0 [ 65.359156][ T281] ? __local_bh_enable_ip+0x9c/0x110 [ 65.364443][ T281] ? rate_control_rate_init+0x35f/0x6a0 [ 65.369972][ T281] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.375586][ T281] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.381638][ T281] ? __local_bh_enable_ip+0x9c/0x110 [ 65.386994][ T281] ieee80211_ibss_work+0x2c7/0xe80 [ 65.392093][ T281] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.398416][ T281] ? mark_held_locks+0x9f/0xe0 [ 65.403165][ T281] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.408954][ T281] ? lockdep_hardirqs_on+0x79/0x100 executing program [ 65.414136][ T281] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.419926][ T281] ieee80211_iface_work+0x82e/0x970 [ 65.425111][ T281] process_one_work+0x933/0x15a0 [ 65.430034][ T281] ? lock_release+0x710/0x710 [ 65.434693][ T281] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.440064][ T281] ? rwlock_bug.part.0+0x90/0x90 [ 65.444993][ T281] ? _raw_spin_lock_irq+0x41/0x50 [ 65.450006][ T281] worker_thread+0x64c/0x1120 [ 65.454671][ T281] ? __kthread_parkme+0x13f/0x1e0 [ 65.459688][ T281] ? process_one_work+0x15a0/0x15a0 [ 65.464867][ T281] kthread+0x3af/0x4a0 [ 65.468934][ T281] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.474820][ T281] ret_from_fork+0x1f/0x30 [ 65.485518][ T281] [ 65.487862][ T281] ============================= [ 65.492700][ T281] [ BUG: Invalid wait context ] [ 65.497551][ T281] 5.10.0-rc2-syzkaller #0 Tainted: G W [ 65.504293][ T281] ----------------------------- [ 65.509115][ T281] kworker/u4:6/281 is trying to lock: [ 65.514478][ T281] ffff88801c45a9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 65.525052][ T281] other info that might help us debug this: [ 65.530928][ T281] context-{4:4} [ 65.534374][ T281] 4 locks held by kworker/u4:6/281: [ 65.539973][ T281] #0: ffff8880153e8938 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.550112][ T281] #1: ffffc90001cdfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.561301][ T281] #2: ffff88801ad68d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.573625][ T281] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.583509][ T281] stack backtrace: [ 65.587211][ T281] CPU: 0 PID: 281 Comm: kworker/u4:6 Tainted: G W 5.10.0-rc2-syzkaller #0 [ 65.596990][ T281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.607090][ T281] Workqueue: phy4 ieee80211_iface_work [ 65.612580][ T281] Call Trace: [ 65.615853][ T281] dump_stack+0x107/0x163 [ 65.620158][ T281] __lock_acquire.cold+0x310/0x3a2 [ 65.625261][ T281] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 65.631251][ T281] ? find_held_lock+0x2d/0x110 [ 65.635993][ T281] lock_acquire+0x2a3/0x8c0 [ 65.640476][ T281] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.646430][ T281] ? lock_release+0x710/0x710 [ 65.651199][ T281] __mutex_lock+0x134/0x10e0 [ 65.655786][ T281] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.661753][ T281] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.667721][ T281] ? mutex_lock_io_nested+0xf60/0xf60 [ 65.673073][ T281] ? ieee80211_clear_fast_rx+0x58/0x80 [ 65.678552][ T281] ? mark_held_locks+0x9f/0xe0 [ 65.683293][ T281] ieee80211_recalc_min_chandef+0x49/0x140 [ 65.689077][ T281] sta_info_move_state+0x3cf/0x8d0 [ 65.694165][ T281] sta_info_free+0x65/0x3b0 [ 65.698643][ T281] sta_info_insert_rcu+0x303/0x2ba0 [ 65.703817][ T281] ? find_held_lock+0x2d/0x110 [ 65.708557][ T281] ? rate_control_rate_init+0x32c/0x6a0 [ 65.714081][ T281] ? sta_info_free+0x3b0/0x3b0 [ 65.718821][ T281] ? __local_bh_enable_ip+0x9c/0x110 [ 65.724084][ T281] ? rate_control_rate_init+0x35f/0x6a0 [ 65.729605][ T281] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.735306][ T281] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.741350][ T281] ? __local_bh_enable_ip+0x9c/0x110 [ 65.746609][ T281] ieee80211_ibss_work+0x2c7/0xe80 [ 65.751700][ T281] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.758003][ T281] ? mark_held_locks+0x9f/0xe0 [ 65.762746][ T281] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.768552][ T281] ? lockdep_hardirqs_on+0x79/0x100 [ 65.773733][ T281] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.779533][ T281] ieee80211_iface_work+0x82e/0x970 [ 65.784711][ T281] process_one_work+0x933/0x15a0 [ 65.789643][ T281] ? lock_release+0x710/0x710 [ 65.794317][ T281] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.799665][ T281] ? rwlock_bug.part.0+0x90/0x90 [ 65.804595][ T281] ? _raw_spin_lock_irq+0x41/0x50 [ 65.809596][ T281] worker_thread+0x64c/0x1120 [ 65.814272][ T281] ? __kthread_parkme+0x13f/0x1e0 [ 65.819286][ T281] ? process_one_work+0x15a0/0x15a0 [ 65.824460][ T281] kthread+0x3af/0x4a0 [ 65.828504][ T281] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.834373][ T281] ret_from_fork+0x1f/0x30 [ 65.841024][ T7] Bluetooth: hci0: command 0x0409 tx timeout 2020/11/07 12:55:33 building call list... [ 66.177896][ T28] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.277253][ T28] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.362447][ T28] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.445853][ T28] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.676664][ T28] device hsr_slave_0 left promiscuous mode [ 67.690974][ T28] device hsr_slave_1 left promiscuous mode [ 67.697299][ T28] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 67.705882][ T28] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 67.714614][ T28] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 67.724124][ T28] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 67.732999][ T28] device bridge_slave_1 left promiscuous mode [ 67.739207][ T28] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.748696][ T28] device bridge_slave_0 left promiscuous mode [ 67.755783][ T28] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.766886][ T28] device veth1_macvtap left promiscuous mode [ 67.773679][ T28] device veth0_macvtap left promiscuous mode [ 67.779707][ T28] device veth1_vlan left promiscuous mode [ 67.786695][ T28] device veth0_vlan left promiscuous mode executing program [ 68.910760][ T28] team0 (unregistering): Port device team_slave_1 removed [ 68.920022][ T28] team0 (unregistering): Port device team_slave_0 removed [ 68.929767][ T28] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 68.943920][ T28] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 68.970620][ T28] bond0 (unregistering): Released all slaves [ 69.012742][ T8470] can: request_module (can-proto-0) failed. [ 69.443668][ T8470] can: request_module (can-proto-0) failed. [ 69.453879][ T8470] can: request_module (can-proto-0) failed. [ 69.589620][ T8470] base_sock_release(00000000a189449d) sk=00000000e0d4ff27