[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ 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 '10.128.1.57' (ECDSA) to the list of known hosts. 2020/11/15 09:00:37 fuzzer started 2020/11/15 09:00:38 connecting to host at 10.128.0.26:42219 2020/11/15 09:00:38 checking machine... 2020/11/15 09:00:38 checking revisions... 2020/11/15 09:00:38 testing simple program... syzkaller login: [ 63.923094][ T8516] IPVS: ftp: loaded support on port[0] = 21 [ 64.077573][ T8516] chnl_net:caif_netlink_parms(): no params data found [ 64.138908][ T8516] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.147126][ T8516] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.156146][ T8516] device bridge_slave_0 entered promiscuous mode [ 64.166340][ T8516] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.174508][ T8516] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.182192][ T8516] device bridge_slave_1 entered promiscuous mode [ 64.204775][ T8516] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.215628][ T8516] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.238398][ T8516] team0: Port device team_slave_0 added [ 64.246645][ T8516] team0: Port device team_slave_1 added [ 64.266366][ T8516] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.273344][ T8516] 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. [ 64.300282][ T8516] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.313452][ T8516] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.321074][ T8516] 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. [ 64.347438][ T8516] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.374596][ T8516] device hsr_slave_0 entered promiscuous mode [ 64.381244][ T8516] device hsr_slave_1 entered promiscuous mode [ 64.481652][ T8516] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.491735][ T8516] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 64.509077][ T8516] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 64.519990][ T8516] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 64.547694][ T8516] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.554875][ T8516] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.562546][ T8516] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.569686][ T8516] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.618763][ T8516] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.632390][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.644806][ T23] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.652992][ T23] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.661797][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 64.675094][ T8516] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.688362][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.697696][ T3154] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.704810][ T3154] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.724164][ T3154] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.732769][ T3154] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.739887][ T3154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.762288][ T8516] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 64.772987][ T8516] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.789603][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.798451][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.807020][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.817234][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.825617][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.833253][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.854311][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 64.861694][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 64.874828][ T8516] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 64.889912][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 64.910713][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 64.919583][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 64.928681][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 64.939247][ T8516] device veth0_vlan entered promiscuous mode [ 64.952354][ T8516] device veth1_vlan entered promiscuous mode [ 64.975051][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 64.983033][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 64.992265][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.004445][ T8516] device veth0_macvtap entered promiscuous mode [ 65.015158][ T8516] device veth1_macvtap entered promiscuous mode [ 65.034245][ T8516] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.041661][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.052456][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.064682][ T8516] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.073976][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.082468][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.093368][ T8516] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.105438][ T8516] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.114220][ T8516] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.123027][ T8516] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.214275][ T21] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.222246][ T21] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.257070][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.272137][ T88] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.281994][ T88] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.291534][ T8417] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.305537][ T88] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 65.316570][ T88] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 88, name: kworker/u4:3 [ 65.327100][ T88] 4 locks held by kworker/u4:3/88: [ 65.332569][ T88] #0: ffff888018c41138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.344377][ T88] #1: ffffc90000f3fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.356414][ T88] #2: ffff88801bfc4d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.372233][ T88] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.383505][ T88] Preemption disabled at: [ 65.383532][ T88] [] __mutex_lock+0x10f/0x10e0 [ 65.396495][ T88] CPU: 0 PID: 88 Comm: kworker/u4:3 Not tainted 5.10.0-rc3-syzkaller #0 [ 65.404846][ T88] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.414924][ T88] Workqueue: phy4 ieee80211_iface_work [ 65.420402][ T88] Call Trace: [ 65.423707][ T88] dump_stack+0x107/0x163 [ 65.428053][ T88] ? __mutex_lock+0x10f/0x10e0 [ 65.432826][ T88] ___might_sleep.cold+0x1e8/0x22e [ 65.437957][ T88] sta_info_move_state+0x32/0x8d0 [ 65.443001][ T88] sta_info_free+0x65/0x3b0 [ 65.447522][ T88] sta_info_insert_rcu+0x303/0x2ba0 [ 65.452739][ T88] ? find_held_lock+0x2d/0x110 executing program [ 65.457518][ T88] ? rate_control_rate_init+0x32c/0x6a0 [ 65.463067][ T88] ? sta_info_free+0x3b0/0x3b0 [ 65.467895][ T88] ? __local_bh_enable_ip+0x9c/0x110 [ 65.473170][ T88] ? rate_control_rate_init+0x35f/0x6a0 [ 65.478705][ T88] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.484474][ T88] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.490538][ T88] ? __local_bh_enable_ip+0x9c/0x110 [ 65.495815][ T88] ieee80211_ibss_work+0x2c7/0xe80 [ 65.500934][ T88] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.507268][ T88] ? mark_held_locks+0x9f/0xe0 [ 65.512050][ T88] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.517884][ T88] ? lockdep_hardirqs_on+0x79/0x100 [ 65.523097][ T88] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.528929][ T88] ieee80211_iface_work+0x91f/0xa90 [ 65.534137][ T88] process_one_work+0x933/0x15a0 [ 65.539077][ T88] ? lock_release+0x710/0x710 [ 65.543747][ T88] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.549116][ T88] ? rwlock_bug.part.0+0x90/0x90 [ 65.554045][ T88] ? _raw_spin_lock_irq+0x41/0x50 [ 65.559065][ T88] worker_thread+0x64c/0x1120 [ 65.563743][ T88] ? process_one_work+0x15a0/0x15a0 [ 65.568935][ T88] kthread+0x3af/0x4a0 [ 65.572997][ T88] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.578880][ T88] ret_from_fork+0x1f/0x30 [ 65.595321][ T88] [ 65.597660][ T88] ============================= [ 65.602482][ T88] [ BUG: Invalid wait context ] [ 65.607473][ T88] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 65.614218][ T88] ----------------------------- [ 65.619057][ T88] kworker/u4:3/88 is trying to lock: [ 65.624370][ T88] ffff88801c2da9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 65.635024][ T88] other info that might help us debug this: [ 65.640894][ T88] context-{4:4} [ 65.644436][ T88] 4 locks held by kworker/u4:3/88: [ 65.649523][ T88] #0: ffff888018c41138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.659677][ T88] #1: ffffc90000f3fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.670901][ T88] #2: ffff88801bfc4d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.680386][ T88] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.690303][ T88] stack backtrace: [ 65.694024][ T88] CPU: 0 PID: 88 Comm: kworker/u4:3 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 65.703735][ T88] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.713794][ T88] Workqueue: phy4 ieee80211_iface_work [ 65.719244][ T88] Call Trace: [ 65.722535][ T88] dump_stack+0x107/0x163 [ 65.726863][ T88] __lock_acquire.cold+0x310/0x3a2 [ 65.732078][ T88] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 65.738037][ T88] ? find_held_lock+0x2d/0x110 [ 65.742776][ T88] lock_acquire+0x2a3/0x8c0 [ 65.747261][ T88] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.753232][ T88] ? lock_release+0x710/0x710 [ 65.757918][ T88] __mutex_lock+0x134/0x10e0 [ 65.762487][ T88] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.768445][ T88] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 65.774403][ T88] ? mutex_lock_io_nested+0xf60/0xf60 [ 65.779751][ T88] ? ieee80211_clear_fast_rx+0x58/0x80 [ 65.785200][ T88] ? mark_held_locks+0x9f/0xe0 [ 65.789940][ T88] ieee80211_recalc_min_chandef+0x49/0x140 [ 65.795719][ T88] sta_info_move_state+0x3cf/0x8d0 [ 65.800805][ T88] sta_info_free+0x65/0x3b0 [ 65.805285][ T88] sta_info_insert_rcu+0x303/0x2ba0 [ 65.810459][ T88] ? find_held_lock+0x2d/0x110 [ 65.815217][ T88] ? rate_control_rate_init+0x32c/0x6a0 [ 65.820738][ T88] ? sta_info_free+0x3b0/0x3b0 [ 65.825487][ T88] ? __local_bh_enable_ip+0x9c/0x110 [ 65.830775][ T88] ? rate_control_rate_init+0x35f/0x6a0 [ 65.836492][ T88] ieee80211_ibss_finish_sta+0x212/0x390 [ 65.842125][ T88] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 65.848196][ T88] ? __local_bh_enable_ip+0x9c/0x110 [ 65.853479][ T88] ieee80211_ibss_work+0x2c7/0xe80 2020/11/15 09:00:41 building call list... [ 65.858591][ T88] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 65.864917][ T88] ? mark_held_locks+0x9f/0xe0 [ 65.869679][ T88] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 65.875503][ T88] ? lockdep_hardirqs_on+0x79/0x100 [ 65.880699][ T88] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 65.886501][ T88] ieee80211_iface_work+0x91f/0xa90 [ 65.891692][ T88] process_one_work+0x933/0x15a0 [ 65.896636][ T88] ? lock_release+0x710/0x710 [ 65.901310][ T88] ? pwq_dec_nr_in_flight+0x320/0x320 [ 65.906681][ T88] ? rwlock_bug.part.0+0x90/0x90 [ 65.911615][ T88] ? _raw_spin_lock_irq+0x41/0x50 [ 65.916635][ T88] worker_thread+0x64c/0x1120 [ 65.921309][ T88] ? process_one_work+0x15a0/0x15a0 [ 65.923544][ T3192] Bluetooth: hci0: command 0x0409 tx timeout [ 65.926497][ T88] kthread+0x3af/0x4a0 [ 65.926515][ T88] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 65.942421][ T88] ret_from_fork+0x1f/0x30 [ 66.172173][ T21] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.262919][ T21] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.368244][ T21] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.458523][ T21] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.762701][ T21] device hsr_slave_0 left promiscuous mode [ 67.775449][ T21] device hsr_slave_1 left promiscuous mode [ 67.784108][ T21] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 67.791489][ T21] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 67.803718][ T21] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 67.811122][ T21] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 67.821013][ T21] device bridge_slave_1 left promiscuous mode [ 67.827785][ T21] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.836662][ T21] device bridge_slave_0 left promiscuous mode [ 67.842882][ T21] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.853745][ T21] device veth1_macvtap left promiscuous mode [ 67.859774][ T21] device veth0_macvtap left promiscuous mode [ 67.866583][ T21] device veth1_vlan left promiscuous mode [ 67.872321][ T21] device veth0_vlan left promiscuous mode executing program [ 68.798324][ T21] team0 (unregistering): Port device team_slave_1 removed [ 68.807861][ T21] team0 (unregistering): Port device team_slave_0 removed [ 68.819240][ T21] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 68.830554][ T21] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 68.856852][ T21] bond0 (unregistering): Released all slaves [ 68.915157][ T8502] can: request_module (can-proto-0) failed. [ 69.309367][ T8502] can: request_module (can-proto-0) failed. [ 69.319538][ T8502] can: request_module (can-proto-0) failed. [ 69.460355][ T8502] base_sock_release(00000000aa1dc471) sk=000000006494cbbb