[ 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 '10.128.1.51' (ECDSA) to the list of known hosts. 2020/11/11 10:01:27 fuzzer started 2020/11/11 10:01:27 connecting to host at 10.128.0.26:33701 2020/11/11 10:01:27 checking machine... 2020/11/11 10:01:27 checking revisions... 2020/11/11 10:01:27 testing simple program... syzkaller login: [ 68.021945][ T8502] IPVS: ftp: loaded support on port[0] = 21 [ 68.184691][ T8502] chnl_net:caif_netlink_parms(): no params data found [ 68.239769][ T8502] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.248026][ T8502] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.256422][ T8502] device bridge_slave_0 entered promiscuous mode [ 68.265224][ T8502] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.273128][ T8502] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.281086][ T8502] device bridge_slave_1 entered promiscuous mode [ 68.301212][ T8502] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.312425][ T8502] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.337455][ T8502] team0: Port device team_slave_0 added [ 68.344946][ T8502] team0: Port device team_slave_1 added [ 68.363019][ T8502] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 68.370089][ T8502] 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. [ 68.396226][ T8502] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 68.409389][ T8502] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 68.416827][ T8502] 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. [ 68.443299][ T8502] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 68.470721][ T8502] device hsr_slave_0 entered promiscuous mode [ 68.477429][ T8502] device hsr_slave_1 entered promiscuous mode [ 68.579779][ T8502] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.590874][ T8502] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.601085][ T8502] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.611763][ T8502] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.637540][ T8502] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.644710][ T8502] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.652743][ T8502] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.659900][ T8502] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.708495][ T8502] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.722720][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.734619][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.743741][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.752463][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.767124][ T8502] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.779892][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.788693][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.796148][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.819171][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.828542][ T8721] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.835628][ T8721] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.844312][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.868041][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.876994][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.885272][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.893683][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.903831][ T8502] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.925970][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.933396][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.944245][ T8502] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.964750][ T2997] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.988479][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.997249][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.005116][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.013913][ T8502] device veth0_vlan entered promiscuous mode [ 69.028464][ T8502] device veth1_vlan entered promiscuous mode [ 69.049821][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.058534][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.068130][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.079644][ T8502] device veth0_macvtap entered promiscuous mode [ 69.091058][ T8502] device veth1_macvtap entered promiscuous mode [ 69.109340][ T8502] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.116935][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.128591][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.141409][ T8502] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.150427][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.163292][ T8502] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.172876][ T8502] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.181675][ T8502] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.191193][ T8502] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.272513][ T3389] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.287363][ T3389] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.308011][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.342862][ T34] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.352475][ T34] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.362710][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.399594][ T8] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 69.410993][ T8] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 8, name: kworker/u4:0 [ 69.422287][ T8] 4 locks held by kworker/u4:0/8: [ 69.428361][ T8] #0: ffff88802d142138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 69.440988][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 69.453446][ T8] #2: ffff8880281c8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 69.496160][ T8] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 69.506521][ T8] Preemption disabled at: [ 69.506549][ T8] [] __mutex_lock+0x10f/0x10e0 [ 69.518531][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.10.0-rc2-syzkaller #0 [ 69.526781][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.536856][ T8] Workqueue: phy3 ieee80211_iface_work [ 69.542326][ T8] Call Trace: [ 69.545624][ T8] dump_stack+0x107/0x163 [ 69.549972][ T8] ? __mutex_lock+0x10f/0x10e0 [ 69.554746][ T8] ___might_sleep.cold+0x1e8/0x22e [ 69.559877][ T8] sta_info_move_state+0x32/0x8d0 [ 69.564921][ T8] sta_info_free+0x65/0x3b0 [ 69.569449][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 69.574639][ T8] ? find_held_lock+0x2d/0x110 [ 69.579407][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 69.584954][ T8] ? sta_info_free+0x3b0/0x3b0 [ 69.589707][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 69.594987][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 69.600526][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 69.606150][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 69.612210][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 69.617489][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 69.622596][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 69.628933][ T8] ? mark_held_locks+0x9f/0xe0 [ 69.633689][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 69.639484][ T8] ? lockdep_hardirqs_on+0x79/0x100 [ 69.644673][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 69.650474][ T8] ieee80211_iface_work+0x82e/0x970 [ 69.655667][ T8] process_one_work+0x933/0x15a0 [ 69.660601][ T8] ? lock_release+0x710/0x710 [ 69.665267][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 69.670647][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 69.675572][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 69.680595][ T8] worker_thread+0x64c/0x1120 [ 69.685275][ T8] ? process_one_work+0x15a0/0x15a0 [ 69.690464][ T8] kthread+0x3af/0x4a0 executing program 2020/11/11 10:01:30 building call list... [ 69.694527][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 69.700429][ T8] ret_from_fork+0x1f/0x30 [ 69.754978][ T8] [ 69.757330][ T8] ============================= [ 69.762167][ T8] [ BUG: Invalid wait context ] [ 69.767034][ T8] 5.10.0-rc2-syzkaller #0 Tainted: G W [ 69.773800][ T8] ----------------------------- [ 69.778661][ T8] kworker/u4:0/8 is trying to lock: [ 69.783849][ T8] ffff88801b20a9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 69.794444][ T8] other info that might help us debug this: [ 69.800464][ T8] context-{4:4} [ 69.803898][ T8] 4 locks held by kworker/u4:0/8: [ 69.808892][ T8] #0: ffff88802d142138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 69.819041][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 69.830237][ T8] #2: ffff8880281c8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 69.839686][ T8] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 69.849581][ T8] stack backtrace: [ 69.853279][ T8] CPU: 1 PID: 8 Comm: kworker/u4:0 Tainted: G W 5.10.0-rc2-syzkaller #0 [ 69.862883][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.872920][ T8] Workqueue: phy3 ieee80211_iface_work [ 69.878350][ T8] Call Trace: [ 69.881618][ T8] dump_stack+0x107/0x163 [ 69.885934][ T8] __lock_acquire.cold+0x310/0x3a2 [ 69.891055][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 69.897018][ T8] ? find_held_lock+0x2d/0x110 [ 69.901777][ T8] lock_acquire+0x2a3/0x8c0 [ 69.906278][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 69.912253][ T8] ? lock_release+0x710/0x710 [ 69.916941][ T8] __mutex_lock+0x134/0x10e0 [ 69.921539][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 69.927520][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 69.933494][ T8] ? mutex_lock_io_nested+0xf60/0xf60 [ 69.938862][ T8] ? ieee80211_clear_fast_rx+0x58/0x80 [ 69.944316][ T8] ? mark_held_locks+0x9f/0xe0 [ 69.949077][ T8] ieee80211_recalc_min_chandef+0x49/0x140 [ 69.954880][ T8] sta_info_move_state+0x3cf/0x8d0 [ 69.959985][ T8] sta_info_free+0x65/0x3b0 [ 69.964491][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 69.969682][ T8] ? find_held_lock+0x2d/0x110 [ 69.974533][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 69.980071][ T8] ? sta_info_free+0x3b0/0x3b0 [ 69.984826][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 69.990104][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 69.995645][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 70.001273][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 70.007336][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 70.012615][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 70.017765][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 70.024088][ T8] ? mark_held_locks+0x9f/0xe0 [ 70.028846][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 70.034642][ T8] ? lockdep_hardirqs_on+0x79/0x100 [ 70.039831][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 70.045653][ T8] ieee80211_iface_work+0x82e/0x970 [ 70.050871][ T8] process_one_work+0x933/0x15a0 [ 70.055819][ T8] ? lock_release+0x710/0x710 [ 70.060494][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 70.065867][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 70.070798][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 70.075815][ T8] worker_thread+0x64c/0x1120 [ 70.080493][ T8] ? process_one_work+0x15a0/0x15a0 [ 70.085707][ T8] kthread+0x3af/0x4a0 [ 70.089770][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 70.095652][ T8] ret_from_fork+0x1f/0x30 [ 70.106728][ T17] Bluetooth: hci0: command 0x0409 tx timeout [ 70.280873][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.380817][ T8] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.461600][ T8] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 70.541414][ T8] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 71.736589][ T8] device hsr_slave_0 left promiscuous mode [ 71.751712][ T8] device hsr_slave_1 left promiscuous mode [ 71.758774][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 71.766633][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 71.775078][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 71.785634][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 71.793800][ T8] device bridge_slave_1 left promiscuous mode [ 71.801537][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.810253][ T8] device bridge_slave_0 left promiscuous mode [ 71.817305][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.827558][ T8] device veth1_macvtap left promiscuous mode [ 71.833570][ T8] device veth0_macvtap left promiscuous mode [ 71.839931][ T8] device veth1_vlan left promiscuous mode [ 71.845911][ T8] device veth0_vlan left promiscuous mode executing program [ 72.911795][ T8] team0 (unregistering): Port device team_slave_1 removed [ 72.922174][ T8] team0 (unregistering): Port device team_slave_0 removed [ 72.932628][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 72.944717][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 72.970520][ T8] bond0 (unregistering): Released all slaves [ 73.018315][ T8500] can: request_module (can-proto-0) failed. [ 73.426838][ T8500] can: request_module (can-proto-0) failed. [ 73.437117][ T8500] can: request_module (can-proto-0) failed. [ 73.574330][ T8500] base_sock_release(0000000005bb118f) sk=00000000d9d3c011 [