[ 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 '10.128.0.253' (ECDSA) to the list of known hosts. 2020/11/26 11:01:05 fuzzer started 2020/11/26 11:01:06 connecting to host at 10.128.0.26:40963 2020/11/26 11:01:06 checking machine... 2020/11/26 11:01:06 checking revisions... 2020/11/26 11:01:06 testing simple program... syzkaller login: [ 66.095912][ T8506] IPVS: ftp: loaded support on port[0] = 21 [ 66.288740][ T8506] chnl_net:caif_netlink_parms(): no params data found [ 66.345652][ T8506] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.354187][ T8506] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.362875][ T8506] device bridge_slave_0 entered promiscuous mode [ 66.372708][ T8506] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.380019][ T8506] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.388453][ T8506] device bridge_slave_1 entered promiscuous mode [ 66.409221][ T8506] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.420379][ T8506] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.444689][ T8506] team0: Port device team_slave_0 added [ 66.452670][ T8506] team0: Port device team_slave_1 added [ 66.471151][ T8506] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.478261][ T8506] 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. [ 66.504424][ T8506] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.518541][ T8506] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.525499][ T8506] 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. [ 66.552599][ T8506] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.580490][ T8506] device hsr_slave_0 entered promiscuous mode [ 66.587356][ T8506] device hsr_slave_1 entered promiscuous mode [ 66.690156][ T8506] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.701689][ T8506] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.712676][ T8506] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.723321][ T8506] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.752151][ T8506] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.759452][ T8506] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.767825][ T8506] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.779568][ T8506] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.830273][ T8506] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.844894][ T4960] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.859186][ T4960] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.867781][ T4960] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.877067][ T4960] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.893292][ T8506] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.907996][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.917925][ T2997] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.925415][ T2997] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.939815][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.948665][ T23] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.955726][ T23] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.978543][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.988132][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.008708][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.018862][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.031823][ T8506] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.044173][ T8506] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.054693][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.075718][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.083648][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.099604][ T8506] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.121308][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.143070][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.152480][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.161717][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.172928][ T8506] device veth0_vlan entered promiscuous mode [ 67.186545][ T8506] device veth1_vlan entered promiscuous mode [ 67.211272][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.220976][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.229754][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.242975][ T8506] device veth0_macvtap entered promiscuous mode [ 67.254520][ T8506] device veth1_macvtap entered promiscuous mode [ 67.270159][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.283385][ T8506] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.291883][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.300983][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.313793][ T8506] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.321657][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.332163][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.343884][ T8506] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.354558][ T8506] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.363563][ T8506] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.372577][ T8506] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.470439][ T21] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.483514][ T21] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.503218][ T8725] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.525190][ T46] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.534896][ T46] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.545251][ T8725] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.591406][ T8] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 67.602285][ T8] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 8, name: kworker/u4:0 [ 67.631719][ T8] 4 locks held by kworker/u4:0/8: [ 67.649736][ T8] #0: ffff88801bcc4938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 2020/11/26 11:01:09 building call list... executing program [ 67.677526][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.714399][ T8] #2: ffff88801ba00d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.741872][ T8] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.768612][ T8] Preemption disabled at: [ 67.768641][ T8] [] __mutex_lock+0x10f/0x10e0 [ 67.779701][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.10.0-rc3-syzkaller #0 [ 67.787956][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.798040][ T8] Workqueue: phy3 ieee80211_iface_work [ 67.803524][ T8] Call Trace: [ 67.806838][ T8] dump_stack+0x107/0x163 [ 67.811312][ T8] ? __mutex_lock+0x10f/0x10e0 [ 67.816116][ T8] ___might_sleep.cold+0x1e8/0x22e [ 67.821260][ T8] sta_info_move_state+0x32/0x8d0 [ 67.826311][ T8] sta_info_free+0x65/0x3b0 [ 67.830842][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 67.836084][ T8] ? find_held_lock+0x2d/0x110 [ 67.840880][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 67.846450][ T8] ? sta_info_free+0x3b0/0x3b0 [ 67.851217][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 67.856519][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 67.862075][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.869286][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.875372][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 67.880697][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 67.885846][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.892429][ T8] ? mark_held_locks+0x9f/0xe0 [ 67.897243][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 67.903094][ T8] ? lockdep_hardirqs_on+0x79/0x100 [ 67.908310][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 67.914168][ T8] ieee80211_iface_work+0x91f/0xa90 [ 67.919390][ T8] process_one_work+0x933/0x15a0 [ 67.924346][ T8] ? lock_release+0x710/0x710 [ 67.929013][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.934525][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 67.939472][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 67.944889][ T8] worker_thread+0x64c/0x1120 [ 67.949715][ T8] ? process_one_work+0x15a0/0x15a0 [ 67.954924][ T8] kthread+0x3af/0x4a0 [ 67.959017][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 67.964924][ T8] ret_from_fork+0x1f/0x30 [ 67.984869][ T8] [ 67.987228][ T8] ============================= [ 67.992068][ T8] [ BUG: Invalid wait context ] [ 67.996924][ T8] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 68.003672][ T8] ----------------------------- [ 68.008513][ T8] kworker/u4:0/8 is trying to lock: [ 68.013700][ T8] ffff88801b90a9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 68.024317][ T8] other info that might help us debug this: [ 68.030212][ T8] context-{4:4} [ 68.033659][ T8] 4 locks held by kworker/u4:0/8: [ 68.038697][ T8] #0: ffff88801bcc4938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 68.048910][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 68.060133][ T8] #2: ffff88801ba00d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 68.069618][ T8] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 68.079540][ T8] stack backtrace: [ 68.083257][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 68.092869][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.102931][ T8] Workqueue: phy3 ieee80211_iface_work [ 68.108397][ T8] Call Trace: [ 68.113777][ T8] dump_stack+0x107/0x163 [ 68.118099][ T8] __lock_acquire.cold+0x310/0x3a2 [ 68.123324][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 68.129297][ T8] ? find_held_lock+0x2d/0x110 [ 68.134070][ T8] lock_acquire+0x2a3/0x8c0 [ 68.138572][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 68.145245][ T8] ? lock_release+0x710/0x710 [ 68.150057][ T8] __mutex_lock+0x134/0x10e0 [ 68.154656][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 68.160643][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 68.167150][ T8] ? mutex_lock_io_nested+0xf60/0xf60 [ 68.172950][ T8] ? ieee80211_clear_fast_rx+0x58/0x80 [ 68.178417][ T8] ? mark_held_locks+0x9f/0xe0 [ 68.183187][ T8] ieee80211_recalc_min_chandef+0x49/0x140 [ 68.189025][ T8] sta_info_move_state+0x3cf/0x8d0 [ 68.194135][ T8] sta_info_free+0x65/0x3b0 [ 68.198641][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 68.203832][ T8] ? find_held_lock+0x2d/0x110 [ 68.208595][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 68.214146][ T8] ? sta_info_free+0x3b0/0x3b0 [ 68.218929][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 68.224224][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 68.229784][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 68.235423][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 68.241554][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 68.246855][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 68.252111][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 68.258480][ T8] ? mark_held_locks+0x9f/0xe0 [ 68.263248][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 68.269282][ T8] ? lockdep_hardirqs_on+0x79/0x100 [ 68.274489][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 68.280321][ T8] ieee80211_iface_work+0x91f/0xa90 [ 68.285660][ T8] process_one_work+0x933/0x15a0 [ 68.290621][ T8] ? lock_release+0x710/0x710 [ 68.295296][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 68.300677][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 68.305611][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 68.310632][ T8] worker_thread+0x64c/0x1120 [ 68.315316][ T8] ? process_one_work+0x15a0/0x15a0 [ 68.320605][ T8] kthread+0x3af/0x4a0 [ 68.324671][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 68.330560][ T8] ret_from_fork+0x1f/0x30 [ 68.347186][ T4960] Bluetooth: hci0: command 0x0409 tx timeout [ 68.514208][ T46] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.602447][ T46] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.670346][ T46] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.772645][ T46] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.937462][ T46] device hsr_slave_0 left promiscuous mode [ 69.943804][ T46] device hsr_slave_1 left promiscuous mode [ 69.957755][ T46] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 69.967096][ T46] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 69.976789][ T46] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 69.984209][ T46] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 69.992868][ T46] device bridge_slave_1 left promiscuous mode [ 69.999290][ T46] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.008027][ T46] device bridge_slave_0 left promiscuous mode [ 70.014225][ T46] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.024706][ T46] device veth1_macvtap left promiscuous mode [ 70.031103][ T46] device veth0_macvtap left promiscuous mode [ 70.037264][ T46] device veth1_vlan left promiscuous mode [ 70.043001][ T46] device veth0_vlan left promiscuous mode executing program [ 71.133549][ T46] team0 (unregistering): Port device team_slave_1 removed [ 71.143382][ T46] team0 (unregistering): Port device team_slave_0 removed [ 71.153151][ T46] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 71.164569][ T46] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 71.195034][ T46] bond0 (unregistering): Released all slaves [ 71.233607][ T8493] can: request_module (can-proto-0) failed. [ 71.704279][ T8493] can: request_module (can-proto-0) failed. [ 71.714286][ T8493] can: request_module (can-proto-0) failed. [ 71.862580][ T8493] base_sock_release(0000000077cc34cc) sk=000000009cdab59c