[ 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 '10.128.0.180' (ECDSA) to the list of known hosts. 2020/11/14 21:07:01 fuzzer started 2020/11/14 21:07:01 connecting to host at 10.128.0.26:33445 2020/11/14 21:07:01 checking machine... 2020/11/14 21:07:01 checking revisions... 2020/11/14 21:07:01 testing simple program... syzkaller login: [ 63.958315][ T8564] IPVS: ftp: loaded support on port[0] = 21 [ 64.085734][ T8564] chnl_net:caif_netlink_parms(): no params data found [ 64.139702][ T8564] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.148822][ T8564] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.157719][ T8564] device bridge_slave_0 entered promiscuous mode [ 64.167384][ T8564] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.174492][ T8564] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.183197][ T8564] device bridge_slave_1 entered promiscuous mode [ 64.204141][ T8564] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.215307][ T8564] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.238483][ T8564] team0: Port device team_slave_0 added [ 64.248453][ T8564] team0: Port device team_slave_1 added [ 64.266065][ T8564] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.273034][ T8564] 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. [ 64.298991][ T8564] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.311721][ T8564] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.318958][ T8564] 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. [ 64.346389][ T8564] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.374268][ T8564] device hsr_slave_0 entered promiscuous mode [ 64.381185][ T8564] device hsr_slave_1 entered promiscuous mode [ 64.479843][ T8564] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.491041][ T8564] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.502099][ T8564] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.512614][ T8564] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.539479][ T8564] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.546679][ T8564] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.554596][ T8564] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.561804][ T8564] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.610096][ T8564] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.623663][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.636376][ T2999] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.644696][ T2999] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.653443][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 64.667483][ T8564] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.678831][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.687957][ T3190] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.695090][ T3190] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.715636][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.724166][ T2999] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.731316][ T2999] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.746151][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.754741][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.765435][ T4914] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.776608][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.790791][ T8564] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.806320][ T8564] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.814207][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.835901][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.843333][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.857661][ T8564] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.878196][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.899604][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.908944][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.917645][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.929134][ T8564] device veth0_vlan entered promiscuous mode [ 64.941791][ T8564] device veth1_vlan entered promiscuous mode [ 64.963748][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.972580][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.981555][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.993091][ T8564] device veth0_macvtap entered promiscuous mode [ 65.003512][ T8564] device veth1_macvtap entered promiscuous mode [ 65.023818][ T8564] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.032073][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.042325][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.054482][ T8564] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.064843][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.079045][ T8564] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.088693][ T8564] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.102029][ T8564] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.113140][ T8564] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.197872][ T156] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.232879][ T1194] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.246305][ T156] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.248346][ T1194] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.258166][ T2999] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.285930][ T4140] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 65.299871][ T1194] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 65.310819][ T1194] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 1194, name: kworker/u4:6 [ 65.322510][ T1194] 4 locks held by kworker/u4:6/1194: [ 65.328535][ T1194] #0: ffff888018a53138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.339799][ T1194] #1: ffffc90004d4fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.351369][ T1194] #2: ffff88801cc90d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.367166][ T1194] #3: ffffffff8b3371a0 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.377802][ T1194] Preemption disabled at: [ 65.377828][ T1194] [] __mutex_lock+0x10f/0x10e0 [ 65.390280][ T1194] CPU: 0 PID: 1194 Comm: kworker/u4:6 Not tainted 5.10.0-rc3-syzkaller #0 [ 65.398785][ T1194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.408940][ T1194] Workqueue: phy4 ieee80211_iface_work [ 65.414439][ T1194] Call Trace: [ 65.417726][ T1194] dump_stack+0x107/0x163 [ 65.422064][ T1194] ? __mutex_lock+0x10f/0x10e0 [ 65.426819][ T1194] ___might_sleep.cold+0x1e8/0x22e [ 65.431921][ T1194] sta_info_move_state+0x32/0x8d0 [ 65.436943][ T1194] sta_info_free+0x65/0x3b0 [ 65.441433][ T1194] sta_info_insert_rcu+0x303/0x2ba0 [ 65.446625][ T1194] ? find_held_lock+0x2d/0x110 [ 65.451378][ T1194] ? rate_control_rate_init+0x32c/0x6a0 [ 65.456914][ T1194] ? sta_info_free+0x3b0/0x3b0 [ 65.461660][ T1194] ? __local_bh_enable_ip+0x9c/0x110 [ 65.466932][ T1194] ? rate_control_rate_init+0x35f/0x6a0 [ 65.472478][ T1194] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.478095][ T1194] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.484171][ T1194] ? __local_bh_enable_ip+0x9c/0x110 [ 65.489446][ T1194] ieee80211_ibss_work+0x2c7/0xe80 [ 65.494543][ T1194] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.500858][ T1194] ? mark_held_locks+0x9f/0xe0 [ 65.505621][ T1194] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.511424][ T1194] ? lockdep_hardirqs_on+0x79/0x100 [ 65.516632][ T1194] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.522423][ T1194] ieee80211_iface_work+0x82e/0x970 [ 65.527609][ T1194] process_one_work+0x933/0x15a0 [ 65.532550][ T1194] ? lock_release+0x710/0x710 [ 65.537236][ T1194] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.542591][ T1194] ? rwlock_bug.part.0+0x90/0x90 [ 65.547517][ T1194] ? _raw_spin_lock_irq+0x41/0x50 [ 65.552540][ T1194] worker_thread+0x64c/0x1120 [ 65.557341][ T1194] ? __kthread_parkme+0x13f/0x1e0 [ 65.562360][ T1194] ? process_one_work+0x15a0/0x15a0 [ 65.567550][ T1194] kthread+0x3af/0x4a0 [ 65.571640][ T1194] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.577521][ T1194] ret_from_fork+0x1f/0x30 [ 65.588406][ T1194] [ 65.590746][ T1194] ============================= [ 65.595580][ T1194] [ BUG: Invalid wait context ] [ 65.600404][ T1194] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 65.607141][ T1194] ----------------------------- [ 65.611990][ T1194] kworker/u4:6/1194 is trying to lock: [ 65.617426][ T1194] ffff88801cdd29d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 65.628003][ T1194] other info that might help us debug this: [ 65.633881][ T1194] context-{4:4} [ 65.637314][ T1194] 4 locks held by kworker/u4:6/1194: [ 65.642590][ T1194] #0: ffff888018a53138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.652748][ T1194] #1: ffffc90004d4fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.663946][ T1194] #2: ffff88801cc90d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.673398][ T1194] #3: ffffffff8b3371a0 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.683311][ T1194] stack backtrace: [ 65.687015][ T1194] CPU: 0 PID: 1194 Comm: kworker/u4:6 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 65.696879][ T1194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.706918][ T1194] Workqueue: phy4 ieee80211_iface_work [ 65.712416][ T1194] Call Trace: [ 65.715706][ T1194] dump_stack+0x107/0x163 [ 65.720035][ T1194] __lock_acquire.cold+0x310/0x3a2 [ 65.725130][ T1194] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 65.731097][ T1194] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 65.737059][ T1194] lock_acquire+0x2a3/0x8c0 [ 65.741545][ T1194] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.747508][ T1194] ? lock_release+0x710/0x710 [ 65.752171][ T1194] __mutex_lock+0x134/0x10e0 [ 65.756746][ T1194] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.762704][ T1194] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.768663][ T1194] ? mutex_lock_io_nested+0xf60/0xf60 [ 65.774010][ T1194] ? ieee80211_clear_fast_rx+0x58/0x80 [ 65.779449][ T1194] ? mark_held_locks+0x9f/0xe0 [ 65.784189][ T1194] ieee80211_recalc_min_chandef+0x49/0x140 [ 65.789988][ T1194] sta_info_move_state+0x3cf/0x8d0 [ 65.795077][ T1194] sta_info_free+0x65/0x3b0 [ 65.799558][ T1194] sta_info_insert_rcu+0x303/0x2ba0 [ 65.804752][ T1194] ? find_held_lock+0x2d/0x110 [ 65.809516][ T1194] ? rate_control_rate_init+0x32c/0x6a0 [ 65.815065][ T1194] ? sta_info_free+0x3b0/0x3b0 [ 65.819811][ T1194] ? __local_bh_enable_ip+0x9c/0x110 [ 65.825080][ T1194] ? rate_control_rate_init+0x35f/0x6a0 [ 65.830603][ T1194] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.836231][ T1194] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.842322][ T1194] ? __local_bh_enable_ip+0x9c/0x110 [ 65.847589][ T1194] ieee80211_ibss_work+0x2c7/0xe80 [ 65.852695][ T1194] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.859002][ T1194] ? mark_held_locks+0x9f/0xe0 [ 65.863745][ T1194] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.869547][ T1194] ? lockdep_hardirqs_on+0x79/0x100 [ 65.874724][ T1194] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.880523][ T1194] ieee80211_iface_work+0x82e/0x970 [ 65.885817][ T1194] process_one_work+0x933/0x15a0 [ 65.890738][ T1194] ? lock_release+0x710/0x710 [ 65.895393][ T1194] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.900758][ T1194] ? rwlock_bug.part.0+0x90/0x90 [ 65.905675][ T1194] ? _raw_spin_lock_irq+0x41/0x50 [ 65.910675][ T1194] worker_thread+0x64c/0x1120 [ 65.915138][ T17] Bluetooth: hci0: command 0x0409 tx timeout [ 65.915338][ T1194] ? __kthread_parkme+0x13f/0x1e0 [ 65.926417][ T1194] ? process_one_work+0x15a0/0x15a0 [ 65.931617][ T1194] kthread+0x3af/0x4a0 [ 65.935688][ T1194] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.941574][ T1194] ret_from_fork+0x1f/0x30 2020/11/14 21:07:05 building call list... [ 66.226709][ T34] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.324296][ T34] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.432878][ T34] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.521278][ T34] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.835670][ T34] device hsr_slave_0 left promiscuous mode [ 67.845602][ T34] device hsr_slave_1 left promiscuous mode [ 67.857726][ T34] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 67.868303][ T34] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 67.877601][ T34] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 67.886235][ T34] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 67.894667][ T34] device bridge_slave_1 left promiscuous mode [ 67.900897][ T34] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.909941][ T34] device bridge_slave_0 left promiscuous mode [ 67.916520][ T34] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.926990][ T34] device veth1_macvtap left promiscuous mode [ 67.933016][ T34] device veth0_macvtap left promiscuous mode [ 67.939085][ T34] device veth1_vlan left promiscuous mode [ 67.945323][ T34] device veth0_vlan left promiscuous mode executing program [ 68.922934][ T34] team0 (unregistering): Port device team_slave_1 removed [ 68.932480][ T34] team0 (unregistering): Port device team_slave_0 removed [ 68.942781][ T34] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 68.956715][ T34] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 68.983091][ T34] bond0 (unregistering): Released all slaves [ 69.099924][ T8550] can: request_module (can-proto-0) failed. [ 69.496437][ T8550] can: request_module (can-proto-0) failed. [ 69.507267][ T8550] can: request_module (can-proto-0) failed. [ 69.673756][ T8550] base_sock_release(000000003d043b0e) sk=00000000bd08bcad