[ 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... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.59' (ECDSA) to the list of known hosts. syzkaller login: [ 69.222451][ T8498] IPVS: ftp: loaded support on port[0] = 21 [ 69.389191][ T8498] chnl_net:caif_netlink_parms(): no params data found [ 69.442033][ T8498] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.450154][ T8498] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.459021][ T8498] device bridge_slave_0 entered promiscuous mode [ 69.468220][ T8498] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.475958][ T8498] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.483583][ T8498] device bridge_slave_1 entered promiscuous mode [ 69.504424][ T8498] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.516436][ T8498] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.538402][ T8498] team0: Port device team_slave_0 added [ 69.547075][ T8498] team0: Port device team_slave_1 added [ 69.564370][ T8498] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.571471][ T8498] 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. [ 69.598341][ T8498] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.611822][ T8498] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.619379][ T8498] 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. [ 69.645746][ T8498] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.671544][ T8498] device hsr_slave_0 entered promiscuous mode [ 69.678394][ T8498] device hsr_slave_1 entered promiscuous mode [ 69.782763][ T8498] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.793361][ T8498] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.803967][ T8498] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.814148][ T8498] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.840408][ T8498] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.847742][ T8498] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.855652][ T8498] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.862723][ T8498] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.911064][ T8498] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.924177][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.936796][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.944697][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.953495][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 69.968312][ T8498] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.980865][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.990301][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.997451][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.015968][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.024314][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.031443][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.053900][ T8498] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 70.066004][ T8498] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.078992][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.088928][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.098073][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.107342][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.116263][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.123956][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.145845][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.153391][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.163415][ T8498] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.185216][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.206560][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.216638][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.224319][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.236004][ T8498] device veth0_vlan entered promiscuous mode [ 70.248906][ T8498] device veth1_vlan entered promiscuous mode [ 70.271068][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.280339][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.289201][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.300998][ T8498] device veth0_macvtap entered promiscuous mode [ 70.312868][ T8498] device veth1_macvtap entered promiscuous mode [ 70.330798][ T8498] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.339082][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.348777][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.360767][ T8498] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.368937][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.380815][ T8498] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.396226][ T8498] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.405205][ T8498] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.413904][ T8498] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.505572][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.513826][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.539390][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 70.557422][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.566219][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.574525][ T3002] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.587940][ T8] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 70.598394][ T8] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 8, name: kworker/u4:0 [ 70.608524][ T8] 4 locks held by kworker/u4:0/8: [ 70.613557][ T8] #0: ffff88801b994138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 70.624432][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 70.636977][ T8] #2: ffff888024610d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 70.646806][ T8] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 70.656969][ T8] Preemption disabled at: [ 70.656991][ T8] [] __mutex_lock+0x10f/0x10e0 [ 70.667878][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.10.0-rc1-syzkaller #0 [ 70.676113][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.686175][ T8] Workqueue: phy4 ieee80211_iface_work [ 70.691700][ T8] Call Trace: [ 70.695001][ T8] dump_stack+0x107/0x163 [ 70.699350][ T8] ? __mutex_lock+0x10f/0x10e0 [ 70.704111][ T8] ___might_sleep.cold+0x1e8/0x22e [ 70.709222][ T8] sta_info_move_state+0x32/0x8d0 [ 70.714247][ T8] sta_info_free+0x65/0x3b0 [ 70.718756][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 70.723943][ T8] ? find_held_lock+0x2d/0x110 [ 70.728755][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 70.734301][ T8] ? sta_info_free+0x3b0/0x3b0 [ 70.739061][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 70.744338][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 70.749871][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 70.755501][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 70.761590][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 70.766862][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 70.771958][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 70.778272][ T8] ? mark_held_locks+0x9f/0xe0 [ 70.783040][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 70.789454][ T8] ? lockdep_hardirqs_on+0x85/0x110 [ 70.794737][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 70.800803][ T8] ieee80211_iface_work+0x82e/0x970 [ 70.806070][ T8] process_one_work+0x933/0x15a0 [ 70.810996][ T8] ? lock_release+0x710/0x710 [ 70.815666][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 70.821035][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 70.826045][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 70.831584][ T8] worker_thread+0x64c/0x1120 [ 70.836253][ T8] ? process_one_work+0x15a0/0x15a0 [ 70.841460][ T8] kthread+0x3af/0x4a0 [ 70.845526][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 70.851433][ T8] ret_from_fork+0x1f/0x30 [ 70.859962][ T8] [ 70.862304][ T8] ============================= [ 70.867163][ T8] [ BUG: Invalid wait context ] [ 70.872016][ T8] 5.10.0-rc1-syzkaller #0 Tainted: G W [ 70.878747][ T8] ----------------------------- [ 70.883577][ T8] kworker/u4:0/8 is trying to lock: [ 70.889117][ T8] ffff88801bb429d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 70.900142][ T8] other info that might help us debug this: [ 70.906014][ T8] context-{4:4} [ 70.909460][ T8] 4 locks held by kworker/u4:0/8: [ 70.914453][ T8] #0: ffff88801b994138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 70.924607][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 70.935814][ T8] #2: ffff888024610d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 70.945267][ T8] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 70.955146][ T8] stack backtrace: [ 70.958845][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Tainted: G W 5.10.0-rc1-syzkaller #0 [ 70.968440][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.978762][ T8] Workqueue: phy4 ieee80211_iface_work [ 70.984196][ T8] Call Trace: [ 70.987478][ T8] dump_stack+0x107/0x163 [ 70.991794][ T8] __lock_acquire.cold+0x310/0x3a2 [ 70.996898][ T8] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 71.002851][ T8] ? find_held_lock+0x2d/0x110 [ 71.007597][ T8] lock_acquire+0x1af/0x8b0 [ 71.012076][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 71.018031][ T8] ? lock_release+0x710/0x710 [ 71.022792][ T8] __mutex_lock+0x134/0x10e0 [ 71.027385][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 71.033348][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 71.039307][ T8] ? mutex_lock_io_nested+0xf60/0xf60 [ 71.044662][ T8] ? ieee80211_clear_fast_rx+0x58/0x80 [ 71.050106][ T8] ? mark_held_locks+0x9f/0xe0 [ 71.054848][ T8] ieee80211_recalc_min_chandef+0x49/0x140 [ 71.060641][ T8] sta_info_move_state+0x3cf/0x8d0 [ 71.065904][ T8] sta_info_free+0x65/0x3b0 [ 71.070489][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 71.075674][ T8] ? find_held_lock+0x2d/0x110 [ 71.080425][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 71.085955][ T8] ? sta_info_free+0x3b0/0x3b0 [ 71.090704][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 71.095978][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 71.101532][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 71.107146][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 71.113196][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 71.118462][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 71.123566][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 71.129876][ T8] ? mark_held_locks+0x9f/0xe0 [ 71.134637][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 71.140466][ T8] ? lockdep_hardirqs_on+0x85/0x110 [ 71.145645][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 71.151446][ T8] ieee80211_iface_work+0x82e/0x970 [ 71.156634][ T8] process_one_work+0x933/0x15a0