[ OK ] Started Getty on tty5. [ 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... 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 '10.128.10.42' (ECDSA) to the list of known hosts. 2020/11/14 21:27:17 fuzzer started 2020/11/14 21:27:17 connecting to host at 10.128.0.26:45645 2020/11/14 21:27:17 checking machine... 2020/11/14 21:27:17 checking revisions... 2020/11/14 21:27:18 testing simple program... syzkaller login: [ 62.758023][ T8517] IPVS: ftp: loaded support on port[0] = 21 [ 62.917391][ T8517] chnl_net:caif_netlink_parms(): no params data found [ 62.972301][ T8517] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.979891][ T8517] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.988758][ T8517] device bridge_slave_0 entered promiscuous mode [ 62.998617][ T8517] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.006115][ T8517] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.014050][ T8517] device bridge_slave_1 entered promiscuous mode [ 63.034428][ T8517] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.045463][ T8517] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.069196][ T8517] team0: Port device team_slave_0 added [ 63.076646][ T8517] team0: Port device team_slave_1 added [ 63.094578][ T8517] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.101686][ T8517] 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. [ 63.129312][ T8517] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.143996][ T8517] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.150959][ T8517] 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. [ 63.177483][ T8517] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.205835][ T8517] device hsr_slave_0 entered promiscuous mode [ 63.212851][ T8517] device hsr_slave_1 entered promiscuous mode [ 63.311067][ T8517] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.321308][ T8517] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.333957][ T8517] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.344421][ T8517] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.370804][ T8517] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.378007][ T8517] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.385945][ T8517] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.393114][ T8517] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.440454][ T8517] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.456480][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.467422][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.476407][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.484602][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.498184][ T8517] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.510149][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.519988][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.527146][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.539559][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.549320][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.556461][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.583787][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.593322][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.603901][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.616556][ T8517] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.629434][ T8517] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.637897][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.646832][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.669823][ T8517] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.677457][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.685405][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.713960][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.728570][ T8517] device veth0_vlan entered promiscuous mode [ 63.736292][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.746188][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.754400][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.767611][ T8517] device veth1_vlan entered promiscuous mode [ 63.789773][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.798691][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.807548][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.818381][ T8517] device veth0_macvtap entered promiscuous mode [ 63.829194][ T8517] device veth1_macvtap entered promiscuous mode [ 63.847987][ T8517] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.856233][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.866747][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.879764][ T8517] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.887978][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.900395][ T8517] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.910507][ T8517] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.919593][ T8517] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.929685][ T8517] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.023606][ T402] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.042742][ T402] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.054790][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.084004][ T402] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.094829][ T402] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.105257][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 64.145406][ T402] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 64.172206][ T402] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 402, name: kworker/u4:7 [ 64.183441][ T402] 4 locks held by kworker/u4:7/402: 2020/11/14 21:27:20 building call list... [ 64.201421][ T402] #0: ffff8880229a9138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 64.221739][ T402] #1: ffffc9000239fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 executing program [ 64.244609][ T402] #2: ffff88802eb30d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 64.284612][ T402] #3: ffffffff8b3371a0 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 64.321427][ T402] Preemption disabled at: [ 64.321459][ T402] [] __mutex_lock+0x10f/0x10e0 [ 64.341415][ T402] CPU: 0 PID: 402 Comm: kworker/u4:7 Not tainted 5.10.0-rc3-syzkaller #0 [ 64.349871][ T402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.359951][ T402] Workqueue: phy3 ieee80211_iface_work [ 64.365428][ T402] Call Trace: [ 64.368734][ T402] dump_stack+0x107/0x163 [ 64.373081][ T402] ? __mutex_lock+0x10f/0x10e0 [ 64.377852][ T402] ___might_sleep.cold+0x1e8/0x22e [ 64.383135][ T402] sta_info_move_state+0x32/0x8d0 [ 64.388190][ T402] sta_info_free+0x65/0x3b0 [ 64.392733][ T402] sta_info_insert_rcu+0x303/0x2ba0 [ 64.397953][ T402] ? find_held_lock+0x2d/0x110 [ 64.402753][ T402] ? rate_control_rate_init+0x32c/0x6a0 [ 64.408320][ T402] ? sta_info_free+0x3b0/0x3b0 [ 64.413121][ T402] ? __local_bh_enable_ip+0x9c/0x110 [ 64.418424][ T402] ? rate_control_rate_init+0x35f/0x6a0 [ 64.423985][ T402] ieee80211_ibss_finish_sta+0x212/0x390 [ 64.429631][ T402] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 64.435712][ T402] ? __local_bh_enable_ip+0x9c/0x110 [ 64.441009][ T402] ieee80211_ibss_work+0x2c7/0xe80 [ 64.446141][ T402] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 64.452485][ T402] ? mark_held_locks+0x9f/0xe0 [ 64.457267][ T402] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 64.463087][ T402] ? lockdep_hardirqs_on+0x79/0x100 [ 64.468295][ T402] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 64.474110][ T402] ieee80211_iface_work+0x82e/0x970 [ 64.479326][ T402] process_one_work+0x933/0x15a0 [ 64.484281][ T402] ? lock_release+0x710/0x710 [ 64.488964][ T402] ? pwq_dec_nr_in_flight+0x320/0x320 [ 64.494342][ T402] ? rwlock_bug.part.0+0x90/0x90 [ 64.499286][ T402] ? _raw_spin_lock_irq+0x41/0x50 [ 64.504332][ T402] worker_thread+0x64c/0x1120 [ 64.509034][ T402] ? __kthread_parkme+0x13f/0x1e0 [ 64.514077][ T402] ? process_one_work+0x15a0/0x15a0 [ 64.519311][ T402] kthread+0x3af/0x4a0 [ 64.523408][ T402] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 64.529318][ T402] ret_from_fork+0x1f/0x30 [ 64.566477][ T402] [ 64.568835][ T402] ============================= [ 64.573676][ T402] [ BUG: Invalid wait context ] [ 64.578520][ T402] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 64.585268][ T402] ----------------------------- [ 64.590105][ T402] kworker/u4:7/402 is trying to lock: [ 64.595461][ T402] ffff888014f9a9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 64.606059][ T402] other info that might help us debug this: [ 64.611939][ T402] context-{4:4} [ 64.615392][ T402] 4 locks held by kworker/u4:7/402: [ 64.620570][ T402] #0: ffff8880229a9138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 64.630741][ T402] #1: ffffc9000239fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 64.641951][ T402] #2: ffff88802eb30d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 64.651433][ T402] #3: ffffffff8b3371a0 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 64.661341][ T402] stack backtrace: [ 64.665062][ T402] CPU: 0 PID: 402 Comm: kworker/u4:7 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 64.674870][ T402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.684929][ T402] Workqueue: phy3 ieee80211_iface_work [ 64.690386][ T402] Call Trace: [ 64.693763][ T402] dump_stack+0x107/0x163 [ 64.698087][ T402] __lock_acquire.cold+0x310/0x3a2 [ 64.703207][ T402] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 64.709180][ T402] ? find_held_lock+0x2d/0x110 [ 64.713939][ T402] lock_acquire+0x2a3/0x8c0 [ 64.718452][ T402] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.724446][ T402] ? lock_release+0x710/0x710 [ 64.729137][ T402] __mutex_lock+0x134/0x10e0 [ 64.733736][ T402] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.739714][ T402] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.745692][ T402] ? mutex_lock_io_nested+0xf60/0xf60 [ 64.751087][ T402] ? ieee80211_clear_fast_rx+0x58/0x80 [ 64.756542][ T402] ? mark_held_locks+0x9f/0xe0 [ 64.761300][ T402] ieee80211_recalc_min_chandef+0x49/0x140 [ 64.767106][ T402] sta_info_move_state+0x3cf/0x8d0 [ 64.772224][ T402] sta_info_free+0x65/0x3b0 [ 64.776724][ T402] sta_info_insert_rcu+0x303/0x2ba0 [ 64.781917][ T402] ? find_held_lock+0x2d/0x110 [ 64.786699][ T402] ? rate_control_rate_init+0x32c/0x6a0 [ 64.792245][ T402] ? sta_info_free+0x3b0/0x3b0 [ 64.797026][ T402] ? __local_bh_enable_ip+0x9c/0x110 [ 64.802307][ T402] ? rate_control_rate_init+0x35f/0x6a0 [ 64.807849][ T402] ieee80211_ibss_finish_sta+0x212/0x390 [ 64.813474][ T402] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 64.819532][ T402] ? __local_bh_enable_ip+0x9c/0x110 [ 64.824809][ T402] ieee80211_ibss_work+0x2c7/0xe80 [ 64.829930][ T402] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 64.836255][ T402] ? mark_held_locks+0x9f/0xe0 [ 64.841015][ T402] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 64.846820][ T402] ? lockdep_hardirqs_on+0x79/0x100 [ 64.852014][ T402] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 64.857818][ T402] ieee80211_iface_work+0x82e/0x970 [ 64.863019][ T402] process_one_work+0x933/0x15a0 [ 64.867954][ T402] ? lock_release+0x710/0x710 [ 64.873059][ T402] ? pwq_dec_nr_in_flight+0x320/0x320 [ 64.878426][ T402] ? rwlock_bug.part.0+0x90/0x90 [ 64.883364][ T402] ? _raw_spin_lock_irq+0x41/0x50 [ 64.888385][ T402] worker_thread+0x64c/0x1120 [ 64.893058][ T402] ? __kthread_parkme+0x13f/0x1e0 [ 64.898115][ T402] ? process_one_work+0x15a0/0x15a0 [ 64.903306][ T402] kthread+0x3af/0x4a0 [ 64.907373][ T402] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 64.913257][ T402] ret_from_fork+0x1f/0x30 [ 64.924506][ T23] Bluetooth: hci0: command 0x0409 tx timeout [ 65.133337][ T249] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.225541][ T249] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.307353][ T249] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.387310][ T249] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.622434][ T249] device hsr_slave_0 left promiscuous mode [ 66.632574][ T249] device hsr_slave_1 left promiscuous mode [ 66.640287][ T249] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.648537][ T249] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.656849][ T249] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.664313][ T249] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.672281][ T249] device bridge_slave_1 left promiscuous mode [ 66.678744][ T249] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.686953][ T249] device bridge_slave_0 left promiscuous mode [ 66.693282][ T249] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.700473][ T8501] can: request_module (can-proto-0) failed. [ 66.708775][ T249] device veth1_macvtap left promiscuous mode [ 66.715093][ T249] device veth0_macvtap left promiscuous mode [ 66.721105][ T249] device veth1_vlan left promiscuous mode [ 66.726909][ T249] device veth0_vlan left promiscuous mode executing program [ 67.568139][ T249] team0 (unregistering): Port device team_slave_1 removed [ 67.578932][ T249] team0 (unregistering): Port device team_slave_0 removed [ 67.590334][ T249] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 67.601663][ T249] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 67.628270][ T249] bond0 (unregistering): Released all slaves [ 68.097301][ T8501] can: request_module (can-proto-0) failed. [ 68.107291][ T8501] can: request_module (can-proto-0) failed. [ 68.245668][ T8501] base_sock_release(00000000c640f766) sk=0000000012ea6087