[ 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 '10.128.1.8' (ECDSA) to the list of known hosts. 2020/11/10 01:01:08 fuzzer started 2020/11/10 01:01:09 connecting to host at 10.128.0.26:39213 2020/11/10 01:01:09 checking machine... 2020/11/10 01:01:09 checking revisions... 2020/11/10 01:01:09 testing simple program... syzkaller login: [ 64.776430][ T8499] IPVS: ftp: loaded support on port[0] = 21 [ 64.957115][ T8499] chnl_net:caif_netlink_parms(): no params data found [ 65.023476][ T8499] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.032102][ T8499] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.039901][ T8499] device bridge_slave_0 entered promiscuous mode [ 65.049456][ T8499] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.056762][ T8499] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.065235][ T8499] device bridge_slave_1 entered promiscuous mode [ 65.086010][ T8499] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.096724][ T8499] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.119945][ T8499] team0: Port device team_slave_0 added [ 65.127519][ T8499] team0: Port device team_slave_1 added [ 65.145282][ T8499] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.152324][ T8499] 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. [ 65.178794][ T8499] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.192169][ T8499] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.199123][ T8499] 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. [ 65.226414][ T8499] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.254648][ T8499] device hsr_slave_0 entered promiscuous mode [ 65.261425][ T8499] device hsr_slave_1 entered promiscuous mode [ 65.362202][ T8499] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.374231][ T8499] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.383548][ T8499] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.394257][ T8499] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.420946][ T8499] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.428282][ T8499] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.436256][ T8499] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.443495][ T8499] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.494053][ T8499] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.507634][ T4096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.519555][ T4096] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.528454][ T4096] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.537144][ T4096] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.552095][ T8499] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.565594][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.574949][ T23] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.582081][ T23] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.601984][ T4096] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.611710][ T4096] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.618884][ T4096] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.640813][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.649291][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.658137][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.666998][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.679197][ T8499] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.691384][ T8499] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.701428][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.720579][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.728032][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.743140][ T8499] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.764750][ T4096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.786694][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.795574][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.804693][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.815558][ T8499] device veth0_vlan entered promiscuous mode [ 65.827812][ T8499] device veth1_vlan entered promiscuous mode [ 65.851076][ T4096] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.859576][ T4096] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.869459][ T4096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.881298][ T8499] device veth0_macvtap entered promiscuous mode [ 65.892866][ T8499] device veth1_macvtap entered promiscuous mode [ 65.911714][ T8499] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.919384][ T4096] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.931024][ T4096] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.943419][ T8499] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.951162][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.960207][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.972710][ T8499] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.981724][ T8499] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.994415][ T8499] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.004926][ T8499] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.105217][ T219] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.119277][ T295] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.129003][ T295] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.137236][ T219] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.147946][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.158804][ T3127] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.212939][ T21] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 66.231638][ T21] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 21, name: kworker/u4:1 [ 66.251393][ T21] 4 locks held by kworker/u4:1/21: [ 66.256537][ T21] #0: ffff8880247dc138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 2020/11/10 01:01:12 building call list... [ 66.291705][ T21] #1: ffffc90000dbfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.303104][ T21] #2: ffff8880355c8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.314298][ T21] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.324837][ T21] Preemption disabled at: [ 66.324867][ T21] [] __mutex_lock+0x10f/0x10e0 [ 66.348515][ T21] CPU: 1 PID: 21 Comm: kworker/u4:1 Not tainted 5.10.0-rc2-syzkaller #0 [ 66.356878][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.366954][ T21] Workqueue: phy3 ieee80211_iface_work [ 66.372436][ T21] Call Trace: [ 66.375745][ T21] dump_stack+0x107/0x163 [ 66.380076][ T21] ? __mutex_lock+0x10f/0x10e0 [ 66.385292][ T21] ___might_sleep.cold+0x1e8/0x22e [ 66.390431][ T21] sta_info_move_state+0x32/0x8d0 [ 66.395461][ T21] sta_info_free+0x65/0x3b0 [ 66.399965][ T21] sta_info_insert_rcu+0x303/0x2ba0 [ 66.405174][ T21] ? find_held_lock+0x2d/0x110 [ 66.409945][ T21] ? rate_control_rate_init+0x32c/0x6a0 [ 66.415496][ T21] ? sta_info_free+0x3b0/0x3b0 [ 66.420271][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 66.425564][ T21] ? rate_control_rate_init+0x35f/0x6a0 [ 66.431120][ T21] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.436758][ T21] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.442921][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 66.448360][ T21] ieee80211_ibss_work+0x2c7/0xe80 [ 66.453964][ T21] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.460317][ T21] ? mark_held_locks+0x9f/0xe0 [ 66.465092][ T21] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.470913][ T21] ? lockdep_hardirqs_on+0x79/0x100 [ 66.476143][ T21] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.481976][ T21] ieee80211_iface_work+0x91f/0xa90 [ 66.487188][ T21] process_one_work+0x933/0x15a0 [ 66.492171][ T21] ? lock_release+0x710/0x710 executing program [ 66.496872][ T21] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.502272][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 66.507215][ T21] ? _raw_spin_lock_irq+0x41/0x50 [ 66.512253][ T21] worker_thread+0x64c/0x1120 [ 66.516947][ T21] ? process_one_work+0x15a0/0x15a0 [ 66.522146][ T21] kthread+0x3af/0x4a0 [ 66.526219][ T21] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.532116][ T21] ret_from_fork+0x1f/0x30 [ 66.542807][ T21] [ 66.545157][ T21] ============================= [ 66.550000][ T21] [ BUG: Invalid wait context ] [ 66.554849][ T21] 5.10.0-rc2-syzkaller #0 Tainted: G W [ 66.561592][ T21] ----------------------------- [ 66.566428][ T21] kworker/u4:1/21 is trying to lock: [ 66.571697][ T21] ffff88802d8729d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 66.582296][ T21] other info that might help us debug this: [ 66.588172][ T21] context-{4:4} [ 66.591623][ T21] 4 locks held by kworker/u4:1/21: [ 66.596715][ T21] #0: ffff8880247dc138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.607948][ T21] #1: ffffc90000dbfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.619161][ T21] #2: ffff8880355c8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.628640][ T21] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.639324][ T21] stack backtrace: [ 66.643064][ T21] CPU: 1 PID: 21 Comm: kworker/u4:1 Tainted: G W 5.10.0-rc2-syzkaller #0 [ 66.652763][ T21] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.662818][ T21] Workqueue: phy3 ieee80211_iface_work [ 66.668275][ T21] Call Trace: [ 66.671581][ T21] dump_stack+0x107/0x163 [ 66.675924][ T21] __lock_acquire.cold+0x310/0x3a2 [ 66.681051][ T21] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.687037][ T21] ? find_held_lock+0x2d/0x110 [ 66.691798][ T21] lock_acquire+0x2a3/0x8c0 [ 66.696302][ T21] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.702620][ T21] ? lock_release+0x710/0x710 [ 66.707295][ T21] __mutex_lock+0x134/0x10e0 [ 66.711878][ T21] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.717864][ T21] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.723848][ T21] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.729220][ T21] ? ieee80211_clear_fast_rx+0x58/0x80 [ 66.734674][ T21] ? mark_held_locks+0x9f/0xe0 [ 66.739520][ T21] ieee80211_recalc_min_chandef+0x49/0x140 [ 66.745318][ T21] sta_info_move_state+0x3cf/0x8d0 [ 66.750422][ T21] sta_info_free+0x65/0x3b0 [ 66.754926][ T21] sta_info_insert_rcu+0x303/0x2ba0 [ 66.760116][ T21] ? find_held_lock+0x2d/0x110 [ 66.764873][ T21] ? rate_control_rate_init+0x32c/0x6a0 [ 66.770411][ T21] ? sta_info_free+0x3b0/0x3b0 [ 66.775174][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 66.780451][ T21] ? rate_control_rate_init+0x35f/0x6a0 [ 66.785993][ T21] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.791620][ T21] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.797698][ T21] ? __local_bh_enable_ip+0x9c/0x110 [ 66.800502][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 66.803008][ T21] ieee80211_ibss_work+0x2c7/0xe80 [ 66.814687][ T21] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.821022][ T21] ? mark_held_locks+0x9f/0xe0 [ 66.825805][ T21] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.831607][ T21] ? lockdep_hardirqs_on+0x79/0x100 [ 66.836798][ T21] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.842604][ T21] ieee80211_iface_work+0x91f/0xa90 [ 66.847800][ T21] process_one_work+0x933/0x15a0 [ 66.853198][ T21] ? lock_release+0x710/0x710 [ 66.857866][ T21] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.863232][ T21] ? rwlock_bug.part.0+0x90/0x90 [ 66.868157][ T21] ? _raw_spin_lock_irq+0x41/0x50 [ 66.873183][ T21] worker_thread+0x64c/0x1120 [ 66.877859][ T21] ? process_one_work+0x15a0/0x15a0 [ 66.883054][ T21] kthread+0x3af/0x4a0 [ 66.887118][ T21] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.893014][ T21] ret_from_fork+0x1f/0x30 [ 67.052790][ T21] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.144716][ T21] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.225090][ T21] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.324614][ T21] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.538780][ T21] device hsr_slave_0 left promiscuous mode [ 68.551693][ T21] device hsr_slave_1 left promiscuous mode [ 68.562276][ T21] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.571618][ T21] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.580249][ T21] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.587644][ T21] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.596423][ T21] device bridge_slave_1 left promiscuous mode [ 68.603034][ T21] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.611433][ T21] device bridge_slave_0 left promiscuous mode [ 68.617622][ T21] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.627202][ T21] device veth1_macvtap left promiscuous mode [ 68.633254][ T21] device veth0_macvtap left promiscuous mode [ 68.639272][ T21] device veth1_vlan left promiscuous mode [ 68.645103][ T21] device veth0_vlan left promiscuous mode executing program [ 69.495189][ T21] team0 (unregistering): Port device team_slave_1 removed [ 69.505597][ T21] team0 (unregistering): Port device team_slave_0 removed [ 69.515289][ T21] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.526125][ T21] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.554209][ T21] bond0 (unregistering): Released all slaves [ 69.702529][ T8484] can: request_module (can-proto-0) failed. [ 70.041876][ T8484] can: request_module (can-proto-0) failed. [ 70.051684][ T8484] can: request_module (can-proto-0) failed. [ 70.191567][ T8484] base_sock_release(000000008a3a3344) sk=00000000359e125a