[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.192' (ECDSA) to the list of known hosts. 2020/12/03 10:21:57 fuzzer started 2020/12/03 10:21:58 connecting to host at 10.128.0.26:44229 2020/12/03 10:21:58 checking machine... 2020/12/03 10:21:58 checking revisions... 2020/12/03 10:21:58 testing simple program... syzkaller login: [ 65.831835][ T8485] IPVS: ftp: loaded support on port[0] = 21 [ 65.981142][ T8485] chnl_net:caif_netlink_parms(): no params data found [ 66.041160][ T8485] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.049561][ T8485] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.058398][ T8485] device bridge_slave_0 entered promiscuous mode [ 66.068748][ T8485] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.076245][ T8485] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.084799][ T8485] device bridge_slave_1 entered promiscuous mode [ 66.107915][ T8485] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.119495][ T8485] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.144131][ T8485] team0: Port device team_slave_0 added [ 66.151934][ T8485] team0: Port device team_slave_1 added [ 66.172213][ T8485] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.179997][ T8485] 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. [ 66.207109][ T8485] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.220746][ T8485] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.227937][ T8485] 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. [ 66.254582][ T8485] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.284258][ T8485] device hsr_slave_0 entered promiscuous mode [ 66.292376][ T8485] device hsr_slave_1 entered promiscuous mode [ 66.403138][ T8485] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.415350][ T8485] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.426371][ T8485] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.436801][ T8485] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.466234][ T8485] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.474003][ T8485] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.482100][ T8485] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.489484][ T8485] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.542203][ T8485] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.559044][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.572297][ T23] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.582417][ T23] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.591065][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.605587][ T8485] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.619610][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.629363][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.636652][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.653829][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.664057][ T23] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.671352][ T23] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.695218][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.704664][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.713085][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.725859][ T8704] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.736507][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.749645][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.770870][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.779277][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.794000][ T8485] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.815721][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.837137][ T8704] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.847766][ T8704] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.856707][ T8704] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.868407][ T8485] device veth0_vlan entered promiscuous mode [ 66.882273][ T8485] device veth1_vlan entered promiscuous mode [ 66.906758][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.915896][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.925970][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.938534][ T8485] device veth0_macvtap entered promiscuous mode [ 66.950586][ T8485] device veth1_macvtap entered promiscuous mode [ 66.965360][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.981435][ T8485] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.989240][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.000030][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.015355][ T8485] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.025153][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.034504][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.047870][ T8485] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.056969][ T8485] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.069968][ T8485] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.080951][ T8485] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.180588][ T27] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.204244][ T27] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.217160][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.224633][ T297] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.232617][ T297] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.245823][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.297464][ T297] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 67.307904][ T297] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 297, name: kworker/u4:5 [ 67.321430][ T297] 4 locks held by kworker/u4:5/297: [ 67.330468][ T297] #0: ffff88801bbcf138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 executing program [ 67.344526][ T297] #1: ffffc90001dbfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.357328][ T297] #2: ffff88801ba5cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.386768][ T297] #3: ffffffff8b3372a0 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.426231][ T297] Preemption disabled at: [ 67.426277][ T297] [] __mutex_lock+0x10f/0x10e0 [ 67.454217][ T297] CPU: 0 PID: 297 Comm: kworker/u4:5 Not tainted 5.10.0-rc3-syzkaller #0 [ 67.462682][ T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 2020/12/03 10:22:01 building call list... [ 67.472784][ T297] Workqueue: phy3 ieee80211_iface_work [ 67.478259][ T297] Call Trace: [ 67.481565][ T297] dump_stack+0x107/0x163 [ 67.485914][ T297] ? __mutex_lock+0x10f/0x10e0 [ 67.490814][ T297] ___might_sleep.cold+0x1e8/0x22e [ 67.495981][ T297] sta_info_move_state+0x32/0x8d0 [ 67.501024][ T297] sta_info_free+0x65/0x3b0 [ 67.505546][ T297] sta_info_insert_rcu+0x303/0x2ba0 [ 67.510758][ T297] ? find_held_lock+0x2d/0x110 [ 67.515547][ T297] ? rate_control_rate_init+0x32c/0x6a0 [ 67.521135][ T297] ? sta_info_free+0x3b0/0x3b0 [ 67.525912][ T297] ? __local_bh_enable_ip+0x9c/0x110 [ 67.532020][ T297] ? rate_control_rate_init+0x35f/0x6a0 [ 67.538118][ T297] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.543773][ T297] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.549863][ T297] ? __local_bh_enable_ip+0x9c/0x110 [ 67.555166][ T297] ieee80211_ibss_work+0x2c7/0xe80 [ 67.560817][ T297] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.567261][ T297] ? mark_held_locks+0x9f/0xe0 [ 67.573005][ T297] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 67.578833][ T297] ? lockdep_hardirqs_on+0x79/0x100 [ 67.584064][ T297] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 67.589889][ T297] ieee80211_iface_work+0x91f/0xa90 [ 67.595127][ T297] process_one_work+0x933/0x15a0 [ 67.600084][ T297] ? lock_release+0x710/0x710 [ 67.604772][ T297] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.610153][ T297] ? rwlock_bug.part.0+0x90/0x90 [ 67.615106][ T297] ? _raw_spin_lock_irq+0x41/0x50 [ 67.620148][ T297] worker_thread+0x64c/0x1120 [ 67.624855][ T297] ? process_one_work+0x15a0/0x15a0 [ 67.630586][ T297] kthread+0x3af/0x4a0 [ 67.634665][ T297] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 67.640568][ T297] ret_from_fork+0x1f/0x30 [ 67.663781][ T297] [ 67.666164][ T297] ============================= [ 67.671004][ T297] [ BUG: Invalid wait context ] [ 67.675852][ T297] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 67.682604][ T297] ----------------------------- [ 67.687446][ T297] kworker/u4:5/297 is trying to lock: [ 67.692816][ T297] ffff8880287da9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 67.703433][ T297] other info that might help us debug this: [ 67.709349][ T297] context-{4:4} [ 67.712805][ T297] 4 locks held by kworker/u4:5/297: [ 67.717997][ T297] #0: ffff88801bbcf138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 67.728174][ T297] #1: ffffc90001dbfda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.740206][ T297] #2: ffff88801ba5cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.749866][ T297] #3: ffffffff8b3372a0 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.759793][ T297] stack backtrace: [ 67.763520][ T297] CPU: 0 PID: 297 Comm: kworker/u4:5 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 67.773323][ T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.783406][ T297] Workqueue: phy3 ieee80211_iface_work [ 67.788872][ T297] Call Trace: [ 67.792173][ T297] dump_stack+0x107/0x163 [ 67.796516][ T297] __lock_acquire.cold+0x310/0x3a2 [ 67.801644][ T297] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 67.807631][ T297] ? find_held_lock+0x2d/0x110 [ 67.812408][ T297] lock_acquire+0x2a3/0x8c0 [ 67.816917][ T297] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.823342][ T297] ? lock_release+0x710/0x710 [ 67.828036][ T297] __mutex_lock+0x134/0x10e0 [ 67.832629][ T297] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.838616][ T297] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.844605][ T297] ? mutex_lock_io_nested+0xf60/0xf60 [ 67.849986][ T297] ? ieee80211_clear_fast_rx+0x58/0x80 [ 67.855481][ T297] ? mark_held_locks+0x9f/0xe0 [ 67.860274][ T297] ieee80211_recalc_min_chandef+0x49/0x140 [ 67.866095][ T297] sta_info_move_state+0x3cf/0x8d0 [ 67.871313][ T297] sta_info_free+0x65/0x3b0 [ 67.875832][ T297] sta_info_insert_rcu+0x303/0x2ba0 [ 67.881210][ T297] ? find_held_lock+0x2d/0x110 [ 67.886158][ T297] ? rate_control_rate_init+0x32c/0x6a0 [ 67.891704][ T297] ? sta_info_free+0x3b0/0x3b0 [ 67.896647][ T297] ? __local_bh_enable_ip+0x9c/0x110 [ 67.901935][ T297] ? rate_control_rate_init+0x35f/0x6a0 [ 67.907491][ T297] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.913134][ T297] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.919207][ T297] ? __local_bh_enable_ip+0x9c/0x110 [ 67.924511][ T297] ieee80211_ibss_work+0x2c7/0xe80 [ 67.929721][ T297] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.936056][ T297] ? mark_held_locks+0x9f/0xe0 [ 67.940826][ T297] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 67.946643][ T297] ? lockdep_hardirqs_on+0x79/0x100 [ 67.952505][ T297] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 67.958349][ T297] ieee80211_iface_work+0x91f/0xa90 [ 67.963640][ T297] process_one_work+0x933/0x15a0 [ 67.968594][ T297] ? lock_release+0x710/0x710 [ 67.973343][ T297] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.978733][ T297] ? rwlock_bug.part.0+0x90/0x90 [ 67.983773][ T297] ? _raw_spin_lock_irq+0x41/0x50 [ 67.989081][ T297] worker_thread+0x64c/0x1120 [ 67.993852][ T297] ? process_one_work+0x15a0/0x15a0 [ 67.999053][ T297] kthread+0x3af/0x4a0 [ 68.003215][ T297] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 68.009206][ T297] ret_from_fork+0x1f/0x30 [ 68.016526][ T5] Bluetooth: hci0: command 0x0409 tx timeout [ 68.231034][ T297] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.289987][ T8485] syz-executor.0 (8485) used greatest stack depth: 22928 bytes left [ 68.358023][ T297] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.438666][ T297] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.520173][ T297] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.694623][ T297] device hsr_slave_0 left promiscuous mode [ 69.703490][ T297] device hsr_slave_1 left promiscuous mode [ 69.716565][ T297] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 69.726138][ T297] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 69.734557][ T297] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 69.742227][ T297] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 69.751681][ T297] device bridge_slave_1 left promiscuous mode [ 69.758187][ T297] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.766931][ T297] device bridge_slave_0 left promiscuous mode [ 69.773811][ T297] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.784469][ T297] device veth1_macvtap left promiscuous mode [ 69.792682][ T297] device veth0_macvtap left promiscuous mode [ 69.799261][ T297] device veth1_vlan left promiscuous mode [ 69.807224][ T297] device veth0_vlan left promiscuous mode executing program [ 70.740970][ T297] team0 (unregistering): Port device team_slave_1 removed [ 70.752105][ T297] team0 (unregistering): Port device team_slave_0 removed [ 70.762101][ T297] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 70.774313][ T297] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 70.803855][ T297] bond0 (unregistering): Released all slaves [ 70.956626][ T8472] can: request_module (can-proto-0) failed. [ 71.321442][ T8472] can: request_module (can-proto-0) failed. [ 71.332411][ T8472] can: request_module (can-proto-0) failed. [ 71.488119][ T8472] base_sock_release(000000008ed97720) sk=00000000c3caba73