[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ 53.771752][ T8412] sshd (8412) used greatest stack depth: 23168 bytes left [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ 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 '10.128.1.17' (ECDSA) to the list of known hosts. 2020/11/14 05:19:35 fuzzer started 2020/11/14 05:19:35 connecting to host at 10.128.0.26:37103 2020/11/14 05:19:35 checking machine... 2020/11/14 05:19:35 checking revisions... 2020/11/14 05:19:35 testing simple program... syzkaller login: [ 64.341821][ T8523] IPVS: ftp: loaded support on port[0] = 21 [ 64.475406][ T8523] chnl_net:caif_netlink_parms(): no params data found [ 64.529254][ T8523] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.537351][ T8523] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.546747][ T8523] device bridge_slave_0 entered promiscuous mode [ 64.556185][ T8523] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.563844][ T8523] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.571831][ T8523] device bridge_slave_1 entered promiscuous mode [ 64.593463][ T8523] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.605800][ T8523] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.629636][ T8523] team0: Port device team_slave_0 added [ 64.637113][ T8523] team0: Port device team_slave_1 added [ 64.655117][ T8523] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.662346][ T8523] 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. [ 64.688302][ T8523] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.701161][ T8523] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.708125][ T8523] 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. [ 64.735324][ T8523] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.762168][ T8523] device hsr_slave_0 entered promiscuous mode [ 64.769021][ T8523] device hsr_slave_1 entered promiscuous mode [ 64.870714][ T8523] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.880620][ T8523] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.891835][ T8523] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.902236][ T8523] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.927689][ T8523] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.934897][ T8523] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.943131][ T8523] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.950240][ T8523] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.000111][ T8523] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.015702][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.027001][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.035903][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.044151][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.058276][ T8523] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.071408][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.080406][ T3147] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.087774][ T3147] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.102548][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.111639][ T3147] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.118886][ T3147] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.142393][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.151266][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.159772][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.172305][ T3201] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.188113][ T8523] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.199743][ T8523] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.208771][ T3201] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.231258][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.238766][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.250173][ T8523] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.270957][ T3201] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.293139][ T3201] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.303674][ T3201] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.312888][ T3201] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.324562][ T8523] device veth0_vlan entered promiscuous mode [ 65.336740][ T8523] device veth1_vlan entered promiscuous mode [ 65.358526][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.367319][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.376603][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.388352][ T8523] device veth0_macvtap entered promiscuous mode [ 65.399056][ T8523] device veth1_macvtap entered promiscuous mode [ 65.417894][ T8523] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.425870][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.436689][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.449166][ T8523] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.456716][ T3201] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.465555][ T3201] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.478146][ T8523] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.488811][ T8523] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.497963][ T8523] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.507354][ T8523] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.589800][ T28] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.612243][ T28] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.625546][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.648723][ T28] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.657210][ T28] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.668125][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.687148][ T210] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 65.700460][ T210] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 210, name: kworker/u4:5 [ 65.721605][ T210] 4 locks held by kworker/u4:5/210: [ 65.726849][ T210] #0: ffff88803593a138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 2020/11/14 05:19:38 building call list... [ 65.751608][ T210] #1: ffffc9000129fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.779973][ T210] #2: ffff88801cbc0d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.800875][ T210] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.821120][ T210] Preemption disabled at: [ 65.821149][ T210] [] __mutex_lock+0x10f/0x10e0 executing program [ 65.860816][ T210] CPU: 0 PID: 210 Comm: kworker/u4:5 Not tainted 5.10.0-rc3-syzkaller #0 [ 65.869263][ T210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.879356][ T210] Workqueue: phy4 ieee80211_iface_work [ 65.884930][ T210] Call Trace: [ 65.888216][ T210] dump_stack+0x107/0x163 [ 65.892582][ T210] ? __mutex_lock+0x10f/0x10e0 [ 65.897390][ T210] ___might_sleep.cold+0x1e8/0x22e [ 65.902512][ T210] sta_info_move_state+0x32/0x8d0 [ 65.907551][ T210] sta_info_free+0x65/0x3b0 [ 65.912068][ T210] sta_info_insert_rcu+0x303/0x2ba0 [ 65.917279][ T210] ? find_held_lock+0x2d/0x110 [ 65.922062][ T210] ? rate_control_rate_init+0x32c/0x6a0 [ 65.928140][ T210] ? sta_info_free+0x3b0/0x3b0 [ 65.932912][ T210] ? __local_bh_enable_ip+0x9c/0x110 [ 65.938213][ T210] ? rate_control_rate_init+0x35f/0x6a0 [ 65.943772][ T210] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.949418][ T210] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.955493][ T210] ? __local_bh_enable_ip+0x9c/0x110 [ 65.960793][ T210] ieee80211_ibss_work+0x2c7/0xe80 [ 65.965920][ T210] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.972255][ T210] ? mark_held_locks+0x9f/0xe0 [ 65.977032][ T210] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.982845][ T210] ? lockdep_hardirqs_on+0x79/0x100 [ 65.988085][ T210] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.994166][ T210] ieee80211_iface_work+0x91f/0xa90 [ 65.999389][ T210] process_one_work+0x933/0x15a0 [ 66.004350][ T210] ? lock_release+0x710/0x710 [ 66.009040][ T210] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.014432][ T210] ? rwlock_bug.part.0+0x90/0x90 [ 66.019374][ T210] ? _raw_spin_lock_irq+0x41/0x50 [ 66.024502][ T210] worker_thread+0x64c/0x1120 [ 66.029196][ T210] ? __kthread_parkme+0x13f/0x1e0 [ 66.034230][ T210] ? process_one_work+0x15a0/0x15a0 [ 66.039435][ T210] kthread+0x3af/0x4a0 [ 66.044032][ T210] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.049929][ T210] ret_from_fork+0x1f/0x30 [ 66.116436][ T210] [ 66.118800][ T210] ============================= [ 66.123641][ T210] [ BUG: Invalid wait context ] [ 66.128489][ T210] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 66.135241][ T210] ----------------------------- [ 66.140084][ T210] kworker/u4:5/210 is trying to lock: [ 66.145484][ T210] ffff88801ca629d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 66.156270][ T210] other info that might help us debug this: [ 66.162154][ T210] context-{4:4} [ 66.165602][ T210] 4 locks held by kworker/u4:5/210: [ 66.170785][ T210] #0: ffff88803593a138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.180969][ T210] #1: ffffc9000129fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.193397][ T210] #2: ffff88801cbc0d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.202881][ T210] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.212797][ T210] stack backtrace: [ 66.216521][ T210] CPU: 0 PID: 210 Comm: kworker/u4:5 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 66.226317][ T210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.236385][ T210] Workqueue: phy4 ieee80211_iface_work [ 66.241841][ T210] Call Trace: [ 66.245134][ T210] dump_stack+0x107/0x163 [ 66.249459][ T210] __lock_acquire.cold+0x310/0x3a2 [ 66.254572][ T210] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.260543][ T210] ? find_held_lock+0x2d/0x110 [ 66.265318][ T210] lock_acquire+0x2a3/0x8c0 [ 66.269821][ T210] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.275795][ T210] ? lock_release+0x710/0x710 [ 66.280469][ T210] __mutex_lock+0x134/0x10e0 [ 66.285087][ T210] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.291126][ T210] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.297106][ T210] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.302473][ T210] ? ieee80211_clear_fast_rx+0x58/0x80 [ 66.307937][ T210] ? mark_held_locks+0x9f/0xe0 [ 66.312712][ T210] ieee80211_recalc_min_chandef+0x49/0x140 [ 66.318527][ T210] sta_info_move_state+0x3cf/0x8d0 [ 66.323646][ T210] sta_info_free+0x65/0x3b0 [ 66.328145][ T210] sta_info_insert_rcu+0x303/0x2ba0 [ 66.333346][ T210] ? find_held_lock+0x2d/0x110 [ 66.338109][ T210] ? rate_control_rate_init+0x32c/0x6a0 [ 66.343653][ T210] ? sta_info_free+0x3b0/0x3b0 [ 66.348414][ T210] ? __local_bh_enable_ip+0x9c/0x110 [ 66.353699][ T210] ? rate_control_rate_init+0x35f/0x6a0 [ 66.359249][ T210] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.364887][ T210] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.370951][ T210] ? __local_bh_enable_ip+0x9c/0x110 [ 66.376236][ T210] ieee80211_ibss_work+0x2c7/0xe80 [ 66.381668][ T210] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.387992][ T210] ? mark_held_locks+0x9f/0xe0 [ 66.392754][ T210] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.398556][ T210] ? lockdep_hardirqs_on+0x79/0x100 [ 66.403934][ T210] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.409740][ T210] ieee80211_iface_work+0x91f/0xa90 [ 66.415017][ T210] process_one_work+0x933/0x15a0 [ 66.419982][ T210] ? lock_release+0x710/0x710 [ 66.424669][ T210] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.430040][ T210] ? rwlock_bug.part.0+0x90/0x90 [ 66.434974][ T210] ? _raw_spin_lock_irq+0x41/0x50 [ 66.439993][ T210] worker_thread+0x64c/0x1120 [ 66.444670][ T210] ? __kthread_parkme+0x13f/0x1e0 [ 66.449685][ T210] ? process_one_work+0x15a0/0x15a0 [ 66.454876][ T210] kthread+0x3af/0x4a0 [ 66.458940][ T210] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.464824][ T210] ret_from_fork+0x1f/0x30 [ 66.481264][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 66.647933][ T28] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.722442][ T28] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.822849][ T28] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.937259][ T28] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.182020][ T28] device hsr_slave_0 left promiscuous mode [ 68.191115][ T28] device hsr_slave_1 left promiscuous mode [ 68.202562][ T28] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.211737][ T28] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.221115][ T28] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.228539][ T28] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.237560][ T28] device bridge_slave_1 left promiscuous mode [ 68.243950][ T28] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.252780][ T28] device bridge_slave_0 left promiscuous mode [ 68.259056][ T28] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.270321][ T28] device veth1_macvtap left promiscuous mode [ 68.276741][ T28] device veth0_macvtap left promiscuous mode [ 68.282891][ T28] device veth1_vlan left promiscuous mode [ 68.288682][ T28] device veth0_vlan left promiscuous mode executing program [ 69.141472][ T28] team0 (unregistering): Port device team_slave_1 removed [ 69.151861][ T28] team0 (unregistering): Port device team_slave_0 removed [ 69.161424][ T28] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.174594][ T28] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.202366][ T28] bond0 (unregistering): Released all slaves [ 69.330104][ T8505] can: request_module (can-proto-0) failed. [ 69.687443][ T8505] can: request_module (can-proto-0) failed. [ 69.697552][ T8505] can: request_module (can-proto-0) failed.