[ 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 '10.128.0.10' (ECDSA) to the list of known hosts. 2020/11/10 08:38:51 fuzzer started 2020/11/10 08:38:51 connecting to host at 10.128.0.26:36023 2020/11/10 08:38:51 checking machine... 2020/11/10 08:38:51 checking revisions... 2020/11/10 08:38:51 testing simple program... syzkaller login: [ 62.820153][ T8500] IPVS: ftp: loaded support on port[0] = 21 [ 62.950063][ T8500] chnl_net:caif_netlink_parms(): no params data found [ 63.002452][ T8500] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.010762][ T8500] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.019492][ T8500] device bridge_slave_0 entered promiscuous mode [ 63.028843][ T8500] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.036020][ T8500] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.043660][ T8500] device bridge_slave_1 entered promiscuous mode [ 63.063237][ T8500] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.074042][ T8500] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.095766][ T8500] team0: Port device team_slave_0 added [ 63.102753][ T8500] team0: Port device team_slave_1 added [ 63.119590][ T8500] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.126581][ 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. [ 63.153625][ T8500] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.166930][ T8500] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.173864][ 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. [ 63.199989][ T8500] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.224230][ T8500] device hsr_slave_0 entered promiscuous mode [ 63.230990][ T8500] device hsr_slave_1 entered promiscuous mode [ 63.322541][ T8500] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.332135][ T8500] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.341944][ T8500] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.352172][ T8500] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.375273][ T8500] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.382385][ T8500] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.390104][ T8500] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.397242][ T8500] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.439622][ T8500] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.454143][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.466744][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.475712][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.483645][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.496025][ T8500] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.507306][ T41] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.515945][ T41] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.522965][ T41] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.547961][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.556749][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.563778][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.572330][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.582224][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.598282][ T8500] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.608930][ T8500] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.620940][ T4912] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.629569][ T4912] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.638238][ T4912] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.647995][ T4912] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.665066][ T4912] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.672457][ T4912] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.684720][ T8500] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.703498][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.723724][ T8500] device veth0_vlan entered promiscuous mode [ 63.731838][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.740913][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.749381][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.762832][ T8500] device veth1_vlan entered promiscuous mode [ 63.783917][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.792267][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.801594][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.813591][ T8500] device veth0_macvtap entered promiscuous mode [ 63.823178][ T8500] device veth1_macvtap entered promiscuous mode [ 63.840722][ T8500] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.848612][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.859343][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.871495][ T8500] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.879296][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 63.890692][ T8500] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.902125][ T8500] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.912880][ T8500] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.923629][ T8500] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.995252][ T246] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.003236][ T246] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.037645][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 64.057055][ T246] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 64.066174][ T246] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 64.074271][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 64.100944][ T336] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 64.112350][ T336] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 336, name: kworker/u4:7 [ 64.128233][ T336] 4 locks held by kworker/u4:7/336: [ 64.134166][ T336] #0: ffff888024b41138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 2020/11/10 08:38:54 building call list... [ 64.146334][ T336] #1: ffffc90001fefda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 64.175360][ T336] #2: ffff88801bef8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 64.188801][ T336] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 64.226206][ T336] Preemption disabled at: [ 64.226233][ T336] [] __mutex_lock+0x10f/0x10e0 [ 64.265197][ T336] CPU: 0 PID: 336 Comm: kworker/u4:7 Not tainted 5.10.0-rc2-syzkaller #0 [ 64.273600][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.283647][ T336] Workqueue: phy4 ieee80211_iface_work [ 64.289125][ T336] Call Trace: [ 64.292410][ T336] dump_stack+0x107/0x163 [ 64.296832][ T336] ? __mutex_lock+0x10f/0x10e0 [ 64.301566][ T336] ___might_sleep.cold+0x1e8/0x22e [ 64.306673][ T336] sta_info_move_state+0x32/0x8d0 [ 64.311797][ T336] sta_info_free+0x65/0x3b0 [ 64.316309][ T336] sta_info_insert_rcu+0x303/0x2ba0 [ 64.321506][ T336] ? find_held_lock+0x2d/0x110 [ 64.326272][ T336] ? rate_control_rate_init+0x32c/0x6a0 [ 64.331826][ T336] ? sta_info_free+0x3b0/0x3b0 [ 64.336586][ T336] ? __local_bh_enable_ip+0x9c/0x110 [ 64.341883][ T336] ? rate_control_rate_init+0x35f/0x6a0 [ 64.347437][ T336] ieee80211_ibss_finish_sta+0x212/0x390 [ 64.353070][ T336] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 64.359141][ T336] ? __local_bh_enable_ip+0x9c/0x110 [ 64.364430][ T336] ieee80211_ibss_work+0x2c7/0xe80 [ 64.369555][ T336] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 executing program [ 64.375902][ T336] ? mark_held_locks+0x9f/0xe0 [ 64.380697][ T336] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 64.386503][ T336] ? lockdep_hardirqs_on+0x79/0x100 [ 64.391722][ T336] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 64.397536][ T336] ieee80211_iface_work+0x82e/0x970 [ 64.402758][ T336] process_one_work+0x933/0x15a0 [ 64.407697][ T336] ? lock_release+0x710/0x710 [ 64.412369][ T336] ? pwq_dec_nr_in_flight+0x320/0x320 [ 64.417741][ T336] ? rwlock_bug.part.0+0x90/0x90 [ 64.422674][ T336] ? _raw_spin_lock_irq+0x41/0x50 [ 64.427707][ T336] worker_thread+0x64c/0x1120 [ 64.432392][ T336] ? __kthread_parkme+0x13f/0x1e0 [ 64.437410][ T336] ? process_one_work+0x15a0/0x15a0 [ 64.442613][ T336] kthread+0x3af/0x4a0 [ 64.446711][ T336] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 64.452633][ T336] ret_from_fork+0x1f/0x30 [ 64.463489][ T336] [ 64.465831][ T336] ============================= [ 64.470660][ T336] [ BUG: Invalid wait context ] [ 64.475494][ T336] 5.10.0-rc2-syzkaller #0 Tainted: G W [ 64.482232][ T336] ----------------------------- [ 64.487063][ T336] kworker/u4:7/336 is trying to lock: [ 64.492413][ T336] ffff88802db1a9d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 64.503003][ T336] other info that might help us debug this: [ 64.508872][ T336] context-{4:4} [ 64.512314][ T336] 4 locks held by kworker/u4:7/336: [ 64.517489][ T336] #0: ffff888024b41138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 64.527643][ T336] #1: ffffc90001fefda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 64.538838][ T336] #2: ffff88801bef8d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 64.548304][ T336] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 64.558203][ T336] stack backtrace: [ 64.561925][ T336] CPU: 0 PID: 336 Comm: kworker/u4:7 Tainted: G W 5.10.0-rc2-syzkaller #0 [ 64.571710][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.581757][ T336] Workqueue: phy4 ieee80211_iface_work [ 64.587196][ T336] Call Trace: [ 64.590472][ T336] dump_stack+0x107/0x163 [ 64.594790][ T336] __lock_acquire.cold+0x310/0x3a2 [ 64.599897][ T336] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 64.605859][ T336] ? find_held_lock+0x2d/0x110 [ 64.610695][ T336] lock_acquire+0x2a3/0x8c0 [ 64.615186][ T336] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.621152][ T336] ? lock_release+0x710/0x710 [ 64.625821][ T336] __mutex_lock+0x134/0x10e0 [ 64.630401][ T336] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.636369][ T336] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 64.642334][ T336] ? mutex_lock_io_nested+0xf60/0xf60 [ 64.647782][ T336] ? ieee80211_clear_fast_rx+0x58/0x80 [ 64.653244][ T336] ? mark_held_locks+0x9f/0xe0 [ 64.657996][ T336] ieee80211_recalc_min_chandef+0x49/0x140 [ 64.663793][ T336] sta_info_move_state+0x3cf/0x8d0 [ 64.668898][ T336] sta_info_free+0x65/0x3b0 [ 64.673394][ T336] sta_info_insert_rcu+0x303/0x2ba0 [ 64.678579][ T336] ? find_held_lock+0x2d/0x110 [ 64.683337][ T336] ? rate_control_rate_init+0x32c/0x6a0 [ 64.688875][ T336] ? sta_info_free+0x3b0/0x3b0 [ 64.693633][ T336] ? __local_bh_enable_ip+0x9c/0x110 [ 64.698922][ T336] ? rate_control_rate_init+0x35f/0x6a0 [ 64.704456][ T336] ieee80211_ibss_finish_sta+0x212/0x390 [ 64.710076][ T336] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 64.716130][ T336] ? __local_bh_enable_ip+0x9c/0x110 [ 64.721408][ T336] ieee80211_ibss_work+0x2c7/0xe80 [ 64.726510][ T336] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 64.732832][ T336] ? mark_held_locks+0x9f/0xe0 [ 64.737611][ T336] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 64.743431][ T336] ? lockdep_hardirqs_on+0x79/0x100 [ 64.748638][ T336] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 64.754449][ T336] ieee80211_iface_work+0x82e/0x970 [ 64.759715][ T336] process_one_work+0x933/0x15a0 [ 64.764650][ T336] ? lock_release+0x710/0x710 [ 64.769313][ T336] ? pwq_dec_nr_in_flight+0x320/0x320 [ 64.774675][ T336] ? rwlock_bug.part.0+0x90/0x90 [ 64.779608][ T336] ? _raw_spin_lock_irq+0x41/0x50 [ 64.784626][ T336] worker_thread+0x64c/0x1120 [ 64.789303][ T336] ? __kthread_parkme+0x13f/0x1e0 [ 64.794317][ T336] ? process_one_work+0x15a0/0x15a0 [ 64.795333][ T17] Bluetooth: hci0: command 0x0409 tx timeout [ 64.799532][ T336] kthread+0x3af/0x4a0 [ 64.809517][ T336] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 64.815396][ T336] ret_from_fork+0x1f/0x30 [ 64.997422][ T336] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.080316][ T336] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.151343][ T336] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 65.216136][ T336] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.325762][ T336] device hsr_slave_0 left promiscuous mode [ 66.338305][ T336] device hsr_slave_1 left promiscuous mode [ 66.346271][ T336] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 66.353641][ T336] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 66.375821][ T336] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 66.383207][ T336] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 66.392357][ T336] device bridge_slave_1 left promiscuous mode [ 66.399391][ T336] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.408583][ T336] device bridge_slave_0 left promiscuous mode [ 66.415439][ T336] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.434933][ T336] device veth1_macvtap left promiscuous mode [ 66.440924][ T336] device veth0_macvtap left promiscuous mode [ 66.447693][ T336] device veth1_vlan left promiscuous mode [ 66.453454][ T336] device veth0_vlan left promiscuous mode executing program [ 67.400691][ T336] team0 (unregistering): Port device team_slave_1 removed [ 67.411304][ T336] team0 (unregistering): Port device team_slave_0 removed [ 67.421295][ T336] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 67.432074][ T336] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 67.458215][ T336] bond0 (unregistering): Released all slaves [ 67.567286][ T8487] can: request_module (can-proto-0) failed. [ 67.941760][ T8487] can: request_module (can-proto-0) failed. [ 67.951106][ T8487] can: request_module (can-proto-0) failed.