[ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.215' (ECDSA) to the list of known hosts. 2020/11/17 12:39:26 fuzzer started 2020/11/17 12:39:26 connecting to host at 10.128.0.26:44243 2020/11/17 12:39:26 checking machine... 2020/11/17 12:39:26 checking revisions... 2020/11/17 12:39:26 testing simple program... syzkaller login: [ 63.684873][ T8489] IPVS: ftp: loaded support on port[0] = 21 [ 63.878468][ T8489] chnl_net:caif_netlink_parms(): no params data found [ 63.931914][ T8489] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.939380][ T8489] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.948663][ T8489] device bridge_slave_0 entered promiscuous mode [ 63.957728][ T8489] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.965421][ T8489] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.973840][ T8489] device bridge_slave_1 entered promiscuous mode [ 63.994082][ T8489] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.004916][ T8489] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.028665][ T8489] team0: Port device team_slave_0 added [ 64.036149][ T8489] team0: Port device team_slave_1 added [ 64.054931][ T8489] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.062061][ 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. [ 64.088801][ T8489] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.103326][ T8489] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.110420][ 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. [ 64.137069][ T8489] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.164702][ T8489] device hsr_slave_0 entered promiscuous mode [ 64.171393][ T8489] device hsr_slave_1 entered promiscuous mode [ 64.269507][ T8489] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.279266][ T8489] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.295085][ T8489] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.305966][ T8489] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.332830][ T8489] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.339952][ T8489] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.347744][ T8489] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.354910][ T8489] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.403204][ T8489] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.417634][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.428023][ T55] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.436543][ T55] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.445353][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 64.458113][ T8489] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.471557][ T3139] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.481323][ T3139] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.488377][ T3139] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.512724][ T8709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.522543][ T8709] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.529696][ T8709] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.538165][ T8709] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.556837][ T8489] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.568026][ T8489] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.582878][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.591211][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.599443][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.608345][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.617944][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.642203][ T8489] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.649780][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.658479][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.677165][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.698019][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.707462][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.716256][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.727767][ T8489] device veth0_vlan entered promiscuous mode [ 64.739455][ T8489] device veth1_vlan entered promiscuous mode [ 64.763096][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.771187][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.779207][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.792774][ T8489] device veth0_macvtap entered promiscuous mode [ 64.804874][ T8489] device veth1_macvtap entered promiscuous mode [ 64.823551][ T8489] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.832462][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.843070][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.855635][ T8489] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 64.863385][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 64.872082][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.883624][ T8489] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.894282][ T8489] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.903596][ T8489] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.912387][ T8489] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.996750][ T21] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.021702][ T21] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.033979][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.055803][ T743] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.065702][ T743] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.075401][ T8710] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.123385][ T21] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 65.136099][ T21] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 21, name: kworker/u4:1 [ 65.156810][ T21] 4 locks held by kworker/u4:1/21: [ 65.162560][ T21] #0: ffff8880281e7938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.173791][ T21] #1: ffffc90000dbfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.209987][ T21] #2: ffff88801bb14d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 2020/11/17 12:39:29 building call list... [ 65.232119][ T21] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.272114][ T21] Preemption disabled at: [ 65.272142][ T21] [] __mutex_lock+0x10f/0x10e0 [ 65.302326][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.10.0-rc3-syzkaller #0 [ 65.310672][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.320743][ T21] Workqueue: phy3 ieee80211_iface_work [ 65.326221][ T21] Call Trace: [ 65.329516][ T21] dump_stack+0x107/0x163 [ 65.333852][ T21] ? __mutex_lock+0x10f/0x10e0 [ 65.338615][ T21] ___might_sleep.cold+0x1e8/0x22e [ 65.343737][ T21] sta_info_move_state+0x32/0x8d0 [ 65.348786][ T21] sta_info_free+0x65/0x3b0 [ 65.353301][ T21] sta_info_insert_rcu+0x303/0x2ba0 [ 65.358501][ T21] ? find_held_lock+0x2d/0x110 [ 65.363271][ T21] ? rate_control_rate_init+0x32c/0x6a0 [ 65.368828][ T21] ? sta_info_free+0x3b0/0x3b0 [ 65.373594][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 65.378888][ T21] ? rate_control_rate_init+0x35f/0x6a0 [ 65.384434][ T21] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.390071][ T21] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.396145][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 65.401441][ T21] ieee80211_ibss_work+0x2c7/0xe80 [ 65.406594][ T21] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.412930][ T21] ? mark_held_locks+0x9f/0xe0 [ 65.417700][ T21] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.423510][ T21] ? lockdep_hardirqs_on+0x79/0x100 [ 65.428708][ T21] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.434534][ T21] ieee80211_iface_work+0x91f/0xa90 [ 65.439753][ T21] process_one_work+0x933/0x15a0 [ 65.444705][ T21] ? lock_release+0x710/0x710 [ 65.449391][ T21] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.454774][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 65.459713][ T21] ? _raw_spin_lock_irq+0x41/0x50 [ 65.464762][ T21] worker_thread+0x64c/0x1120 [ 65.469458][ T21] ? process_one_work+0x15a0/0x15a0 [ 65.474676][ T21] kthread+0x3af/0x4a0 [ 65.478772][ T21] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.484681][ T21] ret_from_fork+0x1f/0x30 [ 65.495849][ T21] [ 65.498195][ T21] ============================= [ 65.503029][ T21] [ BUG: Invalid wait context ] [ 65.507868][ T21] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 65.514609][ T21] ----------------------------- [ 65.519438][ T21] kworker/u4:1/21 is trying to lock: [ 65.524703][ T21] ffff88801b9329d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 65.535286][ T21] other info that might help us debug this: [ 65.541154][ T21] context-{4:4} [ 65.544598][ T21] 4 locks held by kworker/u4:1/21: [ 65.549683][ T21] #0: ffff8880281e7938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.559836][ T21] #1: ffffc90000dbfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.571053][ T21] #2: ffff88801bb14d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.580533][ T21] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.590446][ T21] stack backtrace: [ 65.594163][ T21] CPU: 0 PID: 21 Comm: kworker/u4:1 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 65.603860][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.613913][ T21] Workqueue: phy3 ieee80211_iface_work [ 65.619359][ T21] Call Trace: [ 65.622643][ T21] dump_stack+0x107/0x163 [ 65.626971][ T21] __lock_acquire.cold+0x310/0x3a2 [ 65.632091][ T21] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 65.638070][ T21] ? find_held_lock+0x2d/0x110 [ 65.642844][ T21] lock_acquire+0x2a3/0x8c0 [ 65.647342][ T21] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.653313][ T21] ? lock_release+0x710/0x710 [ 65.657986][ T21] __mutex_lock+0x134/0x10e0 [ 65.662570][ T21] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.668540][ T21] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.674511][ T21] ? mutex_lock_io_nested+0xf60/0xf60 [ 65.679882][ T21] ? ieee80211_clear_fast_rx+0x58/0x80 [ 65.685361][ T21] ? mark_held_locks+0x9f/0xe0 [ 65.690213][ T21] ieee80211_recalc_min_chandef+0x49/0x140 [ 65.696017][ T21] sta_info_move_state+0x3cf/0x8d0 [ 65.701130][ T21] sta_info_free+0x65/0x3b0 [ 65.705630][ T21] sta_info_insert_rcu+0x303/0x2ba0 [ 65.710825][ T21] ? find_held_lock+0x2d/0x110 [ 65.715584][ T21] ? rate_control_rate_init+0x32c/0x6a0 [ 65.721125][ T21] ? sta_info_free+0x3b0/0x3b0 [ 65.725883][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 65.731160][ T21] ? rate_control_rate_init+0x35f/0x6a0 [ 65.737225][ T21] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.742852][ T21] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.748941][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 65.754229][ T21] ieee80211_ibss_work+0x2c7/0xe80 [ 65.759338][ T21] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.765662][ T21] ? mark_held_locks+0x9f/0xe0 [ 65.770421][ T21] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.776220][ T21] ? lockdep_hardirqs_on+0x79/0x100 [ 65.781411][ T21] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.787209][ T21] ieee80211_iface_work+0x91f/0xa90 [ 65.792412][ T21] process_one_work+0x933/0x15a0 [ 65.797343][ T21] ? lock_release+0x710/0x710 executing program [ 65.802018][ T21] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.807388][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 65.812323][ T21] ? _raw_spin_lock_irq+0x41/0x50 [ 65.817344][ T21] worker_thread+0x64c/0x1120 [ 65.822015][ T21] ? process_one_work+0x15a0/0x15a0 [ 65.827203][ T21] kthread+0x3af/0x4a0 [ 65.831263][ T21] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.837167][ T21] ret_from_fork+0x1f/0x30 [ 65.844186][ T8710] Bluetooth: hci0: command 0x0409 tx timeout [ 66.040582][ T743] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.133875][ T743] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.225034][ T743] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.316461][ T743] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.530461][ T743] device hsr_slave_0 left promiscuous mode [ 67.543457][ T743] device hsr_slave_1 left promiscuous mode [ 67.553614][ T743] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 67.562913][ T743] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 67.572118][ T743] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 67.579943][ T743] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 67.588418][ T743] device bridge_slave_1 left promiscuous mode [ 67.594995][ T743] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.603468][ T743] device bridge_slave_0 left promiscuous mode [ 67.610001][ T743] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.621303][ T743] device veth1_macvtap left promiscuous mode [ 67.627315][ T743] device veth0_macvtap left promiscuous mode [ 67.633418][ T743] device veth1_vlan left promiscuous mode [ 67.639150][ T743] device veth0_vlan left promiscuous mode executing program [ 68.536534][ T743] team0 (unregistering): Port device team_slave_1 removed [ 68.546146][ T743] team0 (unregistering): Port device team_slave_0 removed [ 68.556131][ T743] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 68.569478][ T743] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 68.595963][ T743] bond0 (unregistering): Released all slaves [ 68.665379][ T8487] can: request_module (can-proto-0) failed. [ 69.085890][ T8487] can: request_module (can-proto-0) failed. [ 69.095919][ T8487] can: request_module (can-proto-0) failed. [ 69.238046][ T8487] base_sock_release(00000000c9ca5099) sk=000000000141f951