[ 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 '10.128.0.224' (ECDSA) to the list of known hosts. 2020/11/13 14:26:10 fuzzer started 2020/11/13 14:26:10 connecting to host at 10.128.0.26:34539 2020/11/13 14:26:10 checking machine... 2020/11/13 14:26:10 checking revisions... 2020/11/13 14:26:10 testing simple program... syzkaller login: [ 64.229578][ T8492] IPVS: ftp: loaded support on port[0] = 21 [ 64.431939][ T8492] chnl_net:caif_netlink_parms(): no params data found [ 64.481499][ T8492] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.489201][ T8492] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.498109][ T8492] device bridge_slave_0 entered promiscuous mode [ 64.508607][ T8492] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.516144][ T8492] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.523807][ T8492] device bridge_slave_1 entered promiscuous mode [ 64.544426][ T8492] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.556423][ T8492] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.578730][ T8492] team0: Port device team_slave_0 added [ 64.587793][ T8492] team0: Port device team_slave_1 added [ 64.604873][ T8492] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.611836][ T8492] 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. [ 64.638465][ T8492] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.651471][ T8492] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.658947][ T8492] 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. [ 64.685643][ T8492] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.714192][ T8492] device hsr_slave_0 entered promiscuous mode [ 64.720894][ T8492] device hsr_slave_1 entered promiscuous mode [ 64.818979][ T8492] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.829186][ T8492] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.844495][ T8492] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.855549][ T8492] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.881448][ T8492] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.888638][ T8492] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.896622][ T8492] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.903706][ T8492] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.950184][ T8492] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.966404][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.977603][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.985832][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.993734][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.007989][ T8492] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.021261][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.031066][ T2998] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.038662][ T2998] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.055235][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.063700][ T2998] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.070817][ T2998] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.094281][ T8492] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.105009][ T8492] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.122059][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.130668][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.140104][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.150945][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.159337][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.167085][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.185019][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.192686][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.207317][ T8492] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.228276][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.249325][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.258455][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.267602][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.278916][ T8492] device veth0_vlan entered promiscuous mode [ 65.291387][ T8492] device veth1_vlan entered promiscuous mode [ 65.313817][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.323102][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.332427][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.343988][ T8492] device veth0_macvtap entered promiscuous mode [ 65.355033][ T8492] device veth1_macvtap entered promiscuous mode [ 65.374343][ T8492] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.382937][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.392188][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.399687][ T8492] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.411530][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.425286][ T8492] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.434079][ T8492] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.443977][ T8492] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.453479][ T8492] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.533339][ T21] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.564725][ T21] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.588333][ T8712] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.598591][ T21] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.613999][ T21] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.623243][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.638099][ T27] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 65.649130][ T27] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 27, name: kworker/u4:2 [ 65.661852][ T27] 4 locks held by kworker/u4:2/27: [ 65.668326][ T27] #0: ffff88801c762138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.682016][ T27] #1: ffffc90000e1fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.696603][ T27] #2: ffff88801c210d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.708184][ T27] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.725124][ T27] Preemption disabled at: [ 65.725153][ T27] [] __mutex_lock+0x10f/0x10e0 [ 65.738271][ T27] CPU: 0 PID: 27 Comm: kworker/u4:2 Not tainted 5.10.0-rc3-syzkaller #0 [ 65.746617][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.757125][ T27] Workqueue: phy4 ieee80211_iface_work [ 65.762681][ T27] Call Trace: [ 65.765984][ T27] dump_stack+0x107/0x163 [ 65.771982][ T27] ? __mutex_lock+0x10f/0x10e0 [ 65.776755][ T27] ___might_sleep.cold+0x1e8/0x22e [ 65.781961][ T27] sta_info_move_state+0x32/0x8d0 [ 65.786988][ T27] sta_info_free+0x65/0x3b0 [ 65.791482][ T27] sta_info_insert_rcu+0x303/0x2ba0 [ 65.796684][ T27] ? find_held_lock+0x2d/0x110 [ 65.801461][ T27] ? rate_control_rate_init+0x32c/0x6a0 [ 65.807021][ T27] ? sta_info_free+0x3b0/0x3b0 [ 65.811788][ T27] ? __local_bh_enable_ip+0x9c/0x110 [ 65.817067][ T27] ? rate_control_rate_init+0x35f/0x6a0 [ 65.822802][ T27] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.828437][ T27] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.834667][ T27] ? __local_bh_enable_ip+0x9c/0x110 [ 65.839951][ T27] ieee80211_ibss_work+0x2c7/0xe80 [ 65.845058][ T27] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.851375][ T27] ? mark_held_locks+0x9f/0xe0 [ 65.856146][ T27] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.861955][ T27] ? lockdep_hardirqs_on+0x79/0x100 [ 65.867140][ T27] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.872983][ T27] ieee80211_iface_work+0x82e/0x970 [ 65.878171][ T27] process_one_work+0x933/0x15a0 [ 65.883624][ T27] ? lock_release+0x710/0x710 executing program [ 65.888295][ T27] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.893653][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 65.898574][ T27] ? _raw_spin_lock_irq+0x41/0x50 [ 65.903597][ T27] worker_thread+0x64c/0x1120 [ 65.908269][ T27] ? __kthread_parkme+0x13f/0x1e0 [ 65.913308][ T27] ? process_one_work+0x15a0/0x15a0 [ 65.918495][ T27] kthread+0x3af/0x4a0 [ 65.922551][ T27] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.928432][ T27] ret_from_fork+0x1f/0x30 [ 65.937705][ T27] [ 65.940041][ T27] ============================= [ 65.944875][ T27] [ BUG: Invalid wait context ] [ 65.949717][ T27] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 65.956462][ T27] ----------------------------- [ 65.961300][ T27] kworker/u4:2/27 is trying to lock: [ 65.966573][ T27] ffff88801cc129d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 65.977201][ T27] other info that might help us debug this: [ 65.983080][ T27] context-{4:4} [ 65.986537][ T27] 4 locks held by kworker/u4:2/27: [ 65.991636][ T27] #0: ffff88801c762138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.001832][ T27] #1: ffffc90000e1fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.013050][ T27] #2: ffff88801c210d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.022534][ T27] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.032570][ T27] stack backtrace: [ 66.036275][ T27] CPU: 0 PID: 27 Comm: kworker/u4:2 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 66.045958][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.056000][ T27] Workqueue: phy4 ieee80211_iface_work [ 66.061601][ T27] Call Trace: [ 66.064872][ T27] dump_stack+0x107/0x163 [ 66.069350][ T27] __lock_acquire.cold+0x310/0x3a2 [ 66.074446][ T27] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.080546][ T27] ? find_held_lock+0x2d/0x110 [ 66.085285][ T27] lock_acquire+0x2a3/0x8c0 [ 66.089763][ T27] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.095730][ T27] ? lock_release+0x710/0x710 [ 66.100396][ T27] __mutex_lock+0x134/0x10e0 [ 66.104973][ T27] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.110930][ T27] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.116888][ T27] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.122246][ T27] ? ieee80211_clear_fast_rx+0x58/0x80 [ 66.127684][ T27] ? mark_held_locks+0x9f/0xe0 [ 66.132433][ T27] ieee80211_recalc_min_chandef+0x49/0x140 [ 66.138213][ T27] sta_info_move_state+0x3cf/0x8d0 [ 66.143299][ T27] sta_info_free+0x65/0x3b0 [ 66.147781][ T27] sta_info_insert_rcu+0x303/0x2ba0 [ 66.152961][ T27] ? find_held_lock+0x2d/0x110 [ 66.157709][ T27] ? rate_control_rate_init+0x32c/0x6a0 [ 66.163229][ T27] ? sta_info_free+0x3b0/0x3b0 [ 66.167965][ T27] ? __local_bh_enable_ip+0x9c/0x110 [ 66.173224][ T27] ? rate_control_rate_init+0x35f/0x6a0 [ 66.178754][ T27] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.184450][ T27] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.190490][ T27] ? __local_bh_enable_ip+0x9c/0x110 [ 66.195747][ T27] ieee80211_ibss_work+0x2c7/0xe80 [ 66.200833][ T27] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.207134][ T27] ? mark_held_locks+0x9f/0xe0 [ 66.211871][ T27] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.217651][ T27] ? lockdep_hardirqs_on+0x79/0x100 [ 66.222823][ T27] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.228604][ T27] ieee80211_iface_work+0x82e/0x970 [ 66.233783][ T27] process_one_work+0x933/0x15a0 [ 66.238698][ T27] ? lock_release+0x710/0x710 [ 66.243347][ T27] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.248710][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 66.253618][ T27] ? _raw_spin_lock_irq+0x41/0x50 [ 66.258625][ T27] worker_thread+0x64c/0x1120 [ 66.263288][ T27] ? __kthread_parkme+0x13f/0x1e0 [ 66.268285][ T27] ? process_one_work+0x15a0/0x15a0 [ 66.273453][ T27] kthread+0x3af/0x4a0 [ 66.277506][ T27] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.283383][ T27] ret_from_fork+0x1f/0x30 2020/11/13 14:26:14 building call list... [ 66.289811][ T3188] Bluetooth: hci0: command 0x0409 tx timeout [ 66.513791][ T123] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.608299][ T123] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.722255][ T123] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.819977][ T123] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.005387][ T123] device hsr_slave_0 left promiscuous mode [ 68.015676][ T123] device hsr_slave_1 left promiscuous mode [ 68.028896][ T123] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.037288][ T123] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.045606][ T123] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.052982][ T123] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.061724][ T123] device bridge_slave_1 left promiscuous mode [ 68.068472][ T123] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.076841][ T123] device bridge_slave_0 left promiscuous mode [ 68.083004][ T123] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.093614][ T123] device veth1_macvtap left promiscuous mode [ 68.099882][ T123] device veth0_macvtap left promiscuous mode [ 68.106459][ T123] device veth1_vlan left promiscuous mode [ 68.112192][ T123] device veth0_vlan left promiscuous mode executing program [ 69.299901][ T123] team0 (unregistering): Port device team_slave_1 removed [ 69.310130][ T123] team0 (unregistering): Port device team_slave_0 removed [ 69.320943][ T123] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.333311][ T123] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.360759][ T123] bond0 (unregistering): Released all slaves [ 69.491363][ T8482] can: request_module (can-proto-0) failed. [ 69.836980][ T8482] can: request_module (can-proto-0) failed. [ 69.847737][ T8482] can: request_module (can-proto-0) failed. [ 69.983859][ T8482] base_sock_release(00000000ed1bfcbc) sk=00000000cbab4efe