Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.8' (ECDSA) to the list of known hosts. 2020/11/14 18:00:41 fuzzer started 2020/11/14 18:00:41 connecting to host at 10.128.0.26:41281 2020/11/14 18:00:41 checking machine... 2020/11/14 18:00:41 checking revisions... 2020/11/14 18:00:41 testing simple program... syzkaller login: [ 67.371278][ T8509] IPVS: ftp: loaded support on port[0] = 21 [ 67.555589][ T8509] chnl_net:caif_netlink_parms(): no params data found [ 67.608120][ T8509] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.615996][ T8509] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.623882][ T8509] device bridge_slave_0 entered promiscuous mode [ 67.634115][ T8509] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.642058][ T8509] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.650196][ T8509] device bridge_slave_1 entered promiscuous mode [ 67.671007][ T8509] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.681800][ T8509] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.703749][ T8509] team0: Port device team_slave_0 added [ 67.711048][ T8509] team0: Port device team_slave_1 added [ 67.728530][ T8509] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.735767][ T8509] 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. [ 67.762617][ T8509] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.776608][ T8509] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.783605][ T8509] 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. [ 67.810302][ T8509] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.837155][ T8509] device hsr_slave_0 entered promiscuous mode [ 67.843789][ T8509] device hsr_slave_1 entered promiscuous mode [ 67.942656][ T8509] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.952615][ T8509] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.962836][ T8509] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.973384][ T8509] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.997760][ T8509] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.004893][ T8509] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.012743][ T8509] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.019887][ T8509] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.066897][ T8509] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.081515][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.092804][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.101530][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.109706][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.122660][ T8509] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.133834][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.143113][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.150246][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.166662][ T8728] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.175063][ T8728] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.182180][ T8728] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.206962][ T8728] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.216158][ T8728] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.225021][ T8728] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.234355][ T8728] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.243514][ T8509] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.253939][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.272269][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.280716][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.293974][ T8509] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.313239][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.334301][ T8509] device veth0_vlan entered promiscuous mode [ 68.342173][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.351579][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.360013][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.372094][ T8509] device veth1_vlan entered promiscuous mode [ 68.380435][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.404176][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.412568][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.424149][ T8509] device veth0_macvtap entered promiscuous mode [ 68.433507][ T8509] device veth1_macvtap entered promiscuous mode [ 68.454430][ T8509] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.463533][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.474266][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.486670][ T8509] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.497552][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.509645][ T8509] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.520040][ T8509] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.528848][ T8509] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.537707][ T8509] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.629381][ T51] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.642905][ T51] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.666953][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.686607][ T51] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.694667][ T51] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.706795][ T3129] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.749390][ T51] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 68.767077][ T51] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 51, name: kworker/u4:3 [ 68.795495][ T51] 4 locks held by kworker/u4:3/51: [ 68.800637][ T51] #0: ffff88802f7af938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 68.818549][ T51] #1: ffffc90000dcfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 68.848166][ T51] #2: ffff8880352ecd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 68.859471][ T51] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 68.870775][ T51] Preemption disabled at: [ 68.870803][ T51] [] __mutex_lock+0x10f/0x10e0 [ 68.883872][ T51] CPU: 1 PID: 51 Comm: kworker/u4:3 Not tainted 5.10.0-rc2-syzkaller #0 2020/11/14 18:00:44 building call list... [ 68.892217][ T51] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.902294][ T51] Workqueue: phy3 ieee80211_iface_work [ 68.907850][ T51] Call Trace: [ 68.911158][ T51] dump_stack+0x107/0x163 [ 68.915497][ T51] ? __mutex_lock+0x10f/0x10e0 [ 68.920271][ T51] ___might_sleep.cold+0x1e8/0x22e [ 68.925401][ T51] sta_info_move_state+0x32/0x8d0 [ 68.930473][ T51] sta_info_free+0x65/0x3b0 [ 68.934993][ T51] sta_info_insert_rcu+0x303/0x2ba0 [ 68.940202][ T51] ? find_held_lock+0x2d/0x110 [ 68.944984][ T51] ? rate_control_rate_init+0x32c/0x6a0 executing program [ 68.950547][ T51] ? sta_info_free+0x3b0/0x3b0 [ 68.955321][ T51] ? __local_bh_enable_ip+0x9c/0x110 [ 68.960620][ T51] ? rate_control_rate_init+0x35f/0x6a0 [ 68.966180][ T51] ieee80211_ibss_finish_sta+0x212/0x390 [ 68.971824][ T51] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 68.977940][ T51] ? __local_bh_enable_ip+0x9c/0x110 [ 68.983242][ T51] ieee80211_ibss_work+0x2c7/0xe80 [ 68.988372][ T51] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 68.994717][ T51] ? mark_held_locks+0x9f/0xe0 [ 68.999579][ T51] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 69.005398][ T51] ? lockdep_hardirqs_on+0x79/0x100 [ 69.010608][ T51] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 69.016429][ T51] ieee80211_iface_work+0x82e/0x970 [ 69.021646][ T51] process_one_work+0x933/0x15a0 [ 69.026602][ T51] ? lock_release+0x710/0x710 [ 69.031294][ T51] ? pwq_dec_nr_in_flight+0x320/0x320 [ 69.036689][ T51] ? rwlock_bug.part.0+0x90/0x90 [ 69.041640][ T51] ? _raw_spin_lock_irq+0x41/0x50 [ 69.046688][ T51] worker_thread+0x64c/0x1120 [ 69.051393][ T51] ? __kthread_parkme+0x13f/0x1e0 [ 69.056427][ T51] ? process_one_work+0x15a0/0x15a0 [ 69.061641][ T51] kthread+0x3af/0x4a0 [ 69.065724][ T51] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 69.071629][ T51] ret_from_fork+0x1f/0x30 [ 69.090067][ T51] [ 69.092419][ T51] ============================= [ 69.097256][ T51] [ BUG: Invalid wait context ] [ 69.102214][ T51] 5.10.0-rc2-syzkaller #0 Tainted: G W [ 69.108959][ T51] ----------------------------- [ 69.113805][ T51] kworker/u4:3/51 is trying to lock: [ 69.119079][ T51] ffff888027c829d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 69.129687][ T51] other info that might help us debug this: [ 69.135581][ T51] context-{4:4} [ 69.139031][ T51] 4 locks held by kworker/u4:3/51: [ 69.144151][ T51] #0: ffff88802f7af938 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 69.154418][ T51] #1: ffffc90000dcfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 69.165634][ T51] #2: ffff8880352ecd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 69.175113][ T51] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 69.185032][ T51] stack backtrace: [ 69.188754][ T51] CPU: 1 PID: 51 Comm: kworker/u4:3 Tainted: G W 5.10.0-rc2-syzkaller #0 [ 69.198454][ T51] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.208511][ T51] Workqueue: phy3 ieee80211_iface_work [ 69.213960][ T51] Call Trace: [ 69.217250][ T51] dump_stack+0x107/0x163 [ 69.221576][ T51] __lock_acquire.cold+0x310/0x3a2 [ 69.226699][ T51] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 69.232674][ T51] ? find_held_lock+0x2d/0x110 [ 69.237437][ T51] lock_acquire+0x2a3/0x8c0 [ 69.241933][ T51] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 69.247908][ T51] ? lock_release+0x710/0x710 [ 69.252591][ T51] __mutex_lock+0x134/0x10e0 [ 69.257180][ T51] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 69.263158][ T51] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 69.269138][ T51] ? mutex_lock_io_nested+0xf60/0xf60 [ 69.274512][ T51] ? ieee80211_clear_fast_rx+0x58/0x80 [ 69.279970][ T51] ? mark_held_locks+0x9f/0xe0 [ 69.284763][ T51] ieee80211_recalc_min_chandef+0x49/0x140 [ 69.290565][ T51] sta_info_move_state+0x3cf/0x8d0 [ 69.295673][ T51] sta_info_free+0x65/0x3b0 [ 69.300173][ T51] sta_info_insert_rcu+0x303/0x2ba0 [ 69.305363][ T51] ? find_held_lock+0x2d/0x110 [ 69.310148][ T51] ? rate_control_rate_init+0x32c/0x6a0 [ 69.315690][ T51] ? sta_info_free+0x3b0/0x3b0 [ 69.320447][ T51] ? __local_bh_enable_ip+0x9c/0x110 [ 69.325727][ T51] ? rate_control_rate_init+0x35f/0x6a0 [ 69.331266][ T51] ieee80211_ibss_finish_sta+0x212/0x390 [ 69.336897][ T51] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 69.342957][ T51] ? __local_bh_enable_ip+0x9c/0x110 [ 69.348234][ T51] ieee80211_ibss_work+0x2c7/0xe80 [ 69.353342][ T51] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 69.359666][ T51] ? mark_held_locks+0x9f/0xe0 [ 69.364427][ T51] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 69.370228][ T51] ? lockdep_hardirqs_on+0x79/0x100 [ 69.375426][ T51] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 69.381235][ T51] ieee80211_iface_work+0x82e/0x970 [ 69.386436][ T51] process_one_work+0x933/0x15a0 [ 69.391396][ T51] ? lock_release+0x710/0x710 [ 69.396064][ T51] ? pwq_dec_nr_in_flight+0x320/0x320 [ 69.401433][ T51] ? rwlock_bug.part.0+0x90/0x90 [ 69.406366][ T51] ? _raw_spin_lock_irq+0x41/0x50 [ 69.411382][ T51] worker_thread+0x64c/0x1120 [ 69.416056][ T51] ? __kthread_parkme+0x13f/0x1e0 [ 69.421078][ T51] ? process_one_work+0x15a0/0x15a0 [ 69.426271][ T51] kthread+0x3af/0x4a0 [ 69.430334][ T51] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 69.436226][ T51] ret_from_fork+0x1f/0x30 [ 69.442573][ T8728] Bluetooth: hci0: command 0x0409 tx timeout [ 69.608758][ T51] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.719659][ T51] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.800059][ T51] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.882327][ T51] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.060452][ T51] device hsr_slave_0 left promiscuous mode [ 71.067669][ T51] device hsr_slave_1 left promiscuous mode [ 71.076204][ T51] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 71.083602][ T51] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 71.092922][ T51] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 71.101231][ T51] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 71.110990][ T51] device bridge_slave_1 left promiscuous mode [ 71.118091][ T51] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.126822][ T51] device bridge_slave_0 left promiscuous mode [ 71.133030][ T51] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.144300][ T51] device veth1_macvtap left promiscuous mode [ 71.150977][ T51] device veth0_macvtap left promiscuous mode [ 71.158764][ T51] device veth1_vlan left promiscuous mode [ 71.164503][ T51] device veth0_vlan left promiscuous mode executing program [ 72.147586][ T51] team0 (unregistering): Port device team_slave_1 removed [ 72.156918][ T51] team0 (unregistering): Port device team_slave_0 removed [ 72.166837][ T51] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.177471][ T51] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 72.206778][ T51] bond0 (unregistering): Released all slaves [ 72.307504][ T8495] can: request_module (can-proto-0) failed. [ 72.711745][ T8495] can: request_module (can-proto-0) failed. [ 72.721820][ T8495] can: request_module (can-proto-0) failed. [ 72.859953][ T8495] base_sock_release(0000000060d146b3) sk=000000002bc9a725