[ 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 '10.128.0.198' (ECDSA) to the list of known hosts. 2020/11/27 21:30:26 fuzzer started 2020/11/27 21:30:26 connecting to host at 10.128.0.26:41805 2020/11/27 21:30:26 checking machine... 2020/11/27 21:30:26 checking revisions... 2020/11/27 21:30:26 testing simple program... syzkaller login: [ 65.464060][ T8500] IPVS: ftp: loaded support on port[0] = 21 [ 65.630220][ T8500] chnl_net:caif_netlink_parms(): no params data found [ 65.688425][ T8500] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.697934][ T8500] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.707254][ T8500] device bridge_slave_0 entered promiscuous mode [ 65.716690][ T8500] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.724619][ T8500] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.732816][ T8500] device bridge_slave_1 entered promiscuous mode [ 65.755149][ T8500] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.766415][ T8500] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.789448][ T8500] team0: Port device team_slave_0 added [ 65.797481][ T8500] team0: Port device team_slave_1 added [ 65.815937][ T8500] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.823597][ T8500] 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. [ 65.849965][ T8500] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.862815][ T8500] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.869764][ T8500] 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. [ 65.895905][ T8500] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.925045][ T8500] device hsr_slave_0 entered promiscuous mode [ 65.932108][ T8500] device hsr_slave_1 entered promiscuous mode [ 66.038615][ T8500] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.049407][ T8500] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.059896][ T8500] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.071378][ T8500] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.099896][ T8500] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.109152][ T8500] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.120627][ T8500] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.127712][ T8500] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.178417][ T8500] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.194648][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.205678][ T55] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.214340][ T55] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.223090][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.236365][ T8500] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.249769][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.259241][ T8456] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.266505][ T8456] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.291021][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.299592][ T55] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.306725][ T55] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.315205][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.333284][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.341298][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.349571][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.363770][ T8500] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.376409][ T8500] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.386506][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.404931][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.413323][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.426972][ T8500] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.447299][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.467035][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.476473][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.485008][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.496014][ T8500] device veth0_vlan entered promiscuous mode [ 66.509806][ T8500] device veth1_vlan entered promiscuous mode [ 66.533584][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.542893][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.552222][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.563887][ T8500] device veth0_macvtap entered promiscuous mode [ 66.577371][ T8500] device veth1_macvtap entered promiscuous mode [ 66.596528][ T8500] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.606917][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.617384][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.629559][ T8500] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.637724][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.647250][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.661588][ T8500] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.671029][ T8500] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.679961][ T8500] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.689131][ T8500] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.783446][ T106] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.797591][ T106] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.819591][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 66.843854][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 66.853079][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 66.863742][ T8456] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 66.904530][ T106] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 66.919444][ T106] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 106, name: kworker/u4:3 2020/11/27 21:30:29 building call list... [ 66.949051][ T106] 4 locks held by kworker/u4:3/106: [ 66.955767][ T106] #0: ffff88801adf8138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.968368][ T106] #1: ffffc9000121fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.982097][ T106] #2: ffff8880283b4d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 executing program [ 67.016044][ T106] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.041386][ T106] Preemption disabled at: [ 67.041414][ T106] [] __mutex_lock+0x10f/0x10e0 [ 67.066606][ T106] CPU: 0 PID: 106 Comm: kworker/u4:3 Not tainted 5.10.0-rc3-syzkaller #0 [ 67.075197][ T106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.085286][ T106] Workqueue: phy3 ieee80211_iface_work [ 67.090766][ T106] Call Trace: [ 67.094072][ T106] dump_stack+0x107/0x163 [ 67.098422][ T106] ? __mutex_lock+0x10f/0x10e0 [ 67.103199][ T106] ___might_sleep.cold+0x1e8/0x22e [ 67.108341][ T106] sta_info_move_state+0x32/0x8d0 [ 67.113387][ T106] sta_info_free+0x65/0x3b0 [ 67.117911][ T106] sta_info_insert_rcu+0x303/0x2ba0 [ 67.123117][ T106] ? find_held_lock+0x2d/0x110 [ 67.127866][ T106] ? rate_control_rate_init+0x32c/0x6a0 [ 67.133417][ T106] ? sta_info_free+0x3b0/0x3b0 [ 67.138186][ T106] ? __local_bh_enable_ip+0x9c/0x110 [ 67.143490][ T106] ? rate_control_rate_init+0x35f/0x6a0 [ 67.149059][ T106] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.154702][ T106] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.160786][ T106] ? __local_bh_enable_ip+0x9c/0x110 [ 67.166099][ T106] ieee80211_ibss_work+0x2c7/0xe80 [ 67.171252][ T106] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.177602][ T106] ? mark_held_locks+0x9f/0xe0 [ 67.182471][ T106] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 67.188273][ T106] ? lockdep_hardirqs_on+0x79/0x100 [ 67.193473][ T106] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 67.199295][ T106] ieee80211_iface_work+0x91f/0xa90 [ 67.204517][ T106] process_one_work+0x933/0x15a0 [ 67.209475][ T106] ? lock_release+0x710/0x710 [ 67.214159][ T106] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.219541][ T106] ? rwlock_bug.part.0+0x90/0x90 [ 67.224496][ T106] ? _raw_spin_lock_irq+0x41/0x50 [ 67.229535][ T106] worker_thread+0x64c/0x1120 [ 67.234233][ T106] ? process_one_work+0x15a0/0x15a0 [ 67.239444][ T106] kthread+0x3af/0x4a0 [ 67.243518][ T106] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 67.249414][ T106] ret_from_fork+0x1f/0x30 [ 67.275798][ T106] [ 67.278148][ T106] ============================= [ 67.282983][ T106] [ BUG: Invalid wait context ] [ 67.287827][ T106] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 67.294592][ T106] ----------------------------- [ 67.299429][ T106] kworker/u4:3/106 is trying to lock: [ 67.304794][ T106] ffff88801bfda9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 67.315408][ T106] other info that might help us debug this: [ 67.321287][ T106] context-{4:4} [ 67.324738][ T106] 4 locks held by kworker/u4:3/106: [ 67.329918][ T106] #0: ffff88801adf8138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 67.340111][ T106] #1: ffffc9000121fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.352361][ T106] #2: ffff8880283b4d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.361840][ T106] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.371755][ T106] stack backtrace: [ 67.375484][ T106] CPU: 0 PID: 106 Comm: kworker/u4:3 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 67.385277][ T106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.395348][ T106] Workqueue: phy3 ieee80211_iface_work [ 67.400799][ T106] Call Trace: [ 67.404091][ T106] dump_stack+0x107/0x163 [ 67.408413][ T106] __lock_acquire.cold+0x310/0x3a2 [ 67.413527][ T106] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 67.419497][ T106] ? find_held_lock+0x2d/0x110 [ 67.424252][ T106] lock_acquire+0x2a3/0x8c0 [ 67.428748][ T106] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.434720][ T106] ? lock_release+0x710/0x710 [ 67.439395][ T106] __mutex_lock+0x134/0x10e0 [ 67.443980][ T106] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.449956][ T106] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.455983][ T106] ? mutex_lock_io_nested+0xf60/0xf60 [ 67.460129][ T8719] Bluetooth: hci0: command 0x0409 tx timeout [ 67.461363][ T106] ? ieee80211_clear_fast_rx+0x58/0x80 [ 67.472783][ T106] ? mark_held_locks+0x9f/0xe0 [ 67.477554][ T106] ieee80211_recalc_min_chandef+0x49/0x140 [ 67.483360][ T106] sta_info_move_state+0x3cf/0x8d0 [ 67.488467][ T106] sta_info_free+0x65/0x3b0 [ 67.492963][ T106] sta_info_insert_rcu+0x303/0x2ba0 [ 67.498153][ T106] ? find_held_lock+0x2d/0x110 [ 67.502908][ T106] ? rate_control_rate_init+0x32c/0x6a0 [ 67.508443][ T106] ? sta_info_free+0x3b0/0x3b0 [ 67.513202][ T106] ? __local_bh_enable_ip+0x9c/0x110 [ 67.518480][ T106] ? rate_control_rate_init+0x35f/0x6a0 [ 67.524031][ T106] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.529667][ T106] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.535739][ T106] ? __local_bh_enable_ip+0x9c/0x110 [ 67.541027][ T106] ieee80211_ibss_work+0x2c7/0xe80 [ 67.546147][ T106] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.552475][ T106] ? mark_held_locks+0x9f/0xe0 [ 67.557241][ T106] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 67.563040][ T106] ? lockdep_hardirqs_on+0x79/0x100 [ 67.568232][ T106] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 67.574039][ T106] ieee80211_iface_work+0x91f/0xa90 [ 67.579238][ T106] process_one_work+0x933/0x15a0 [ 67.584170][ T106] ? lock_release+0x710/0x710 [ 67.588837][ T106] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.594200][ T106] ? rwlock_bug.part.0+0x90/0x90 [ 67.599131][ T106] ? _raw_spin_lock_irq+0x41/0x50 [ 67.604147][ T106] worker_thread+0x64c/0x1120 [ 67.608816][ T106] ? process_one_work+0x15a0/0x15a0 [ 67.614006][ T106] kthread+0x3af/0x4a0 [ 67.618070][ T106] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 67.623964][ T106] ret_from_fork+0x1f/0x30 [ 67.794082][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.906382][ T8] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.995727][ T8] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.086243][ T8] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.246173][ T8] device hsr_slave_0 left promiscuous mode [ 69.253790][ T8] device hsr_slave_1 left promiscuous mode [ 69.261455][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 69.268849][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 69.277975][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 69.287301][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 69.296385][ T8] device bridge_slave_1 left promiscuous mode [ 69.303897][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.312931][ T8] device bridge_slave_0 left promiscuous mode [ 69.319215][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.331640][ T8] device veth1_macvtap left promiscuous mode [ 69.337696][ T8] device veth0_macvtap left promiscuous mode [ 69.344115][ T8] device veth1_vlan left promiscuous mode [ 69.350249][ T8] device veth0_vlan left promiscuous mode executing program [ 70.281791][ T8] team0 (unregistering): Port device team_slave_1 removed [ 70.293143][ T8] team0 (unregistering): Port device team_slave_0 removed [ 70.303867][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 70.315073][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 70.342114][ T8] bond0 (unregistering): Released all slaves [ 70.459059][ T8485] can: request_module (can-proto-0) failed. [ 70.825628][ T8485] can: request_module (can-proto-0) failed. [ 70.835816][ T8485] can: request_module (can-proto-0) failed. [ 70.981075][ T8485] base_sock_release(00000000f2fad4ee) sk=0000000036ffe031