[ 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 '10.128.1.29' (ECDSA) to the list of known hosts. 2020/11/19 02:14:55 fuzzer started 2020/11/19 02:14:56 connecting to host at 10.128.0.26:45155 2020/11/19 02:14:56 checking machine... 2020/11/19 02:14:56 checking revisions... 2020/11/19 02:14:56 testing simple program... syzkaller login: [ 63.075531][ T8525] IPVS: ftp: loaded support on port[0] = 21 [ 63.257920][ T8525] chnl_net:caif_netlink_parms(): no params data found [ 63.312360][ T8525] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.320432][ T8525] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.328945][ T8525] device bridge_slave_0 entered promiscuous mode [ 63.338233][ T8525] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.345322][ T8525] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.353458][ T8525] device bridge_slave_1 entered promiscuous mode [ 63.374071][ T8525] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.385160][ T8525] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.407719][ T8525] team0: Port device team_slave_0 added [ 63.415041][ T8525] team0: Port device team_slave_1 added [ 63.432898][ T8525] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.440030][ T8525] 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. [ 63.466291][ T8525] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.479460][ T8525] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.486398][ T8525] 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. [ 63.512398][ T8525] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.539169][ T8525] device hsr_slave_0 entered promiscuous mode [ 63.545799][ T8525] device hsr_slave_1 entered promiscuous mode [ 63.643474][ T8525] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.653516][ T8525] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.664240][ T8525] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.674447][ T8525] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.700782][ T8525] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.708358][ T8525] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.716083][ T8525] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.723246][ T8525] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.771924][ T8525] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.785947][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.797508][ T3193] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.805665][ T3193] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.814446][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.827642][ T8525] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.840787][ T3001] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.849635][ T3001] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.856749][ T3001] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.880397][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.889355][ T23] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.896475][ T23] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.904656][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.924727][ T8525] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.935397][ T8525] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.950766][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.961310][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.969911][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.978681][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.991964][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.010842][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.018299][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.034006][ T8525] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.053023][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.073321][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.083209][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.091607][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.102451][ T8525] device veth0_vlan entered promiscuous mode [ 64.115169][ T8525] device veth1_vlan entered promiscuous mode [ 64.138939][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.148009][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.156018][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 64.167685][ T8525] device veth0_macvtap entered promiscuous mode [ 64.178209][ T8525] device veth1_macvtap entered promiscuous mode [ 64.199265][ T8525] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 64.206946][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 64.217316][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 64.229360][ T8525] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 64.238152][ T8745] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 64.250269][ T8525] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.259547][ T8525] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.270002][ T8525] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.280444][ T8525] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.369463][ T28] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.378131][ T28] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.404681][ T119] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.414109][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.414759][ T119] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.434260][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 64.471211][ T28] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 64.482866][ T8] [ 64.485202][ T8] ============================= [ 64.490034][ T8] [ BUG: Invalid wait context ] [ 64.494869][ T8] 5.10.0-rc3-syzkaller #0 Not tainted [ 64.500223][ T8] ----------------------------- [ 64.505057][ T8] kworker/u4:0/8 is trying to lock: [ 64.510240][ T8] ffff88801cbea9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 64.520836][ T8] other info that might help us debug this: [ 64.526700][ T8] context-{4:4} [ 64.530136][ T8] 4 locks held by kworker/u4:0/8: [ 64.535130][ T8] #0: ffff88801bae4938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 64.545278][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 64.556475][ T8] #2: ffff88801d01cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 64.565927][ T8] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 64.576761][ T8] stack backtrace: [ 64.580470][ T8] CPU: 1 PID: 8 Comm: kworker/u4:0 Not tainted 5.10.0-rc3-syzkaller #0 [ 64.588676][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.598721][ T8] Workqueue: phy3 ieee80211_iface_work [ 64.604151][ T8] Call Trace: [ 64.607422][ T8] dump_stack+0x107/0x163 [ 64.611726][ T8] __lock_acquire.cold+0x310/0x3a2 [ 64.616821][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 64.622802][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 64.628946][ T8] lock_acquire+0x2a3/0x8c0 [ 64.633434][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.639408][ T8] ? lock_release+0x710/0x710 [ 64.644084][ T8] __mutex_lock+0x134/0x10e0 [ 64.648662][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.654621][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.660578][ T8] ? mutex_lock_io_nested+0xf60/0xf60 [ 64.665933][ T8] ? ieee80211_clear_fast_rx+0x58/0x80 [ 64.671390][ T8] ? mark_held_locks+0x9f/0xe0 [ 64.676131][ T8] ieee80211_recalc_min_chandef+0x49/0x140 [ 64.681914][ T8] sta_info_move_state+0x3cf/0x8d0 [ 64.687002][ T8] sta_info_free+0x65/0x3b0 [ 64.691490][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 64.696664][ T8] ? find_held_lock+0x2d/0x110 [ 64.701415][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 64.706936][ T8] ? sta_info_free+0x3b0/0x3b0 [ 64.711679][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 64.716941][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 64.722898][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 64.728522][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 64.734579][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 64.739856][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 64.744949][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 64.751254][ T8] ? mark_held_locks+0x9f/0xe0 [ 64.755995][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 64.761786][ T8] ? lockdep_hardirqs_on+0x79/0x100 [ 64.766977][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 64.772783][ T8] ieee80211_iface_work+0x91f/0xa90 [ 64.777976][ T8] process_one_work+0x933/0x15a0 [ 64.782909][ T8] ? lock_release+0x710/0x710 [ 64.787566][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 64.792950][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 64.797874][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 64.802877][ T8] worker_thread+0x64c/0x1120 [ 64.807547][ T8] ? process_one_work+0x15a0/0x15a0 [ 64.812793][ T8] kthread+0x3af/0x4a0 [ 64.816845][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 executing program [ 64.822730][ T8] ret_from_fork+0x1f/0x30 [ 64.831985][ T28] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 28, name: kworker/u4:2 [ 64.841780][ T28] INFO: lockdep is turned off. [ 64.846870][ T28] Preemption disabled at: [ 64.846892][ T28] [] __mutex_lock+0x10f/0x10e0 [ 64.858818][ T28] CPU: 0 PID: 28 Comm: kworker/u4:2 Not tainted 5.10.0-rc3-syzkaller #0 [ 64.867239][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.877333][ T28] Workqueue: phy4 ieee80211_iface_work [ 64.882978][ T28] Call Trace: [ 64.886264][ T28] dump_stack+0x107/0x163 [ 64.890580][ T28] ? __mutex_lock+0x10f/0x10e0 [ 64.895329][ T28] ___might_sleep.cold+0x1e8/0x22e [ 64.900433][ T28] sta_info_move_state+0x32/0x8d0 [ 64.905436][ T28] sta_info_free+0x65/0x3b0 [ 64.909913][ T28] sta_info_insert_rcu+0x303/0x2ba0 [ 64.915090][ T28] ? find_held_lock+0x2d/0x110 [ 64.919826][ T28] ? rate_control_rate_init+0x32c/0x6a0 [ 64.925365][ T28] ? sta_info_free+0x3b0/0x3b0 [ 64.930103][ T28] ? __local_bh_enable_ip+0x9c/0x110 [ 64.935367][ T28] ? rate_control_rate_init+0x35f/0x6a0 [ 64.940887][ T28] ieee80211_ibss_finish_sta+0x212/0x390 [ 64.946494][ T28] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 64.952533][ T28] ? __local_bh_enable_ip+0x9c/0x110 [ 64.957795][ T28] ieee80211_ibss_work+0x2c7/0xe80 [ 64.962878][ T28] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 64.969273][ T28] ? mark_held_locks+0x9f/0xe0 [ 64.974028][ T28] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 64.979821][ T28] ? lockdep_hardirqs_on+0x79/0x100 [ 64.985079][ T28] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 64.990862][ T28] ieee80211_iface_work+0x91f/0xa90 [ 64.996035][ T28] process_one_work+0x933/0x15a0 [ 65.000947][ T28] ? lock_release+0x710/0x710 [ 65.005596][ T28] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.010941][ T28] ? rwlock_bug.part.0+0x90/0x90 [ 65.015863][ T28] ? _raw_spin_lock_irq+0x41/0x50 [ 65.020859][ T28] worker_thread+0x64c/0x1120 [ 65.025511][ T28] ? __kthread_parkme+0x13f/0x1e0 [ 65.030516][ T28] ? process_one_work+0x15a0/0x15a0 [ 65.035690][ T28] kthread+0x3af/0x4a0 [ 65.039732][ T28] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.045598][ T28] ret_from_fork+0x1f/0x30 [ 65.096727][ T23] Bluetooth: hci0: command 0x0409 tx timeout 2020/11/19 02:14:59 building call list... [ 65.288302][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.398846][ T8] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.491737][ T8] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.584336][ T8] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.817012][ T8] device hsr_slave_0 left promiscuous mode [ 66.827043][ T8] device hsr_slave_1 left promiscuous mode [ 66.838784][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.849695][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.858614][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.866007][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.875575][ T8] device bridge_slave_1 left promiscuous mode [ 66.882529][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.892149][ T8] device bridge_slave_0 left promiscuous mode [ 66.899049][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.910251][ T8] device veth1_macvtap left promiscuous mode [ 66.916807][ T8] device veth0_macvtap left promiscuous mode [ 66.922807][ T8] device veth1_vlan left promiscuous mode [ 66.929808][ T8] device veth0_vlan left promiscuous mode executing program [ 68.090975][ T8] team0 (unregistering): Port device team_slave_1 removed [ 68.102374][ T8] team0 (unregistering): Port device team_slave_0 removed [ 68.112696][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 68.123886][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 68.151195][ T8] bond0 (unregistering): Released all slaves [ 68.247015][ T8509] can: request_module (can-proto-0) failed. [ 68.635377][ T8509] can: request_module (can-proto-0) failed. [ 68.645300][ T8509] can: request_module (can-proto-0) failed.