Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.141' (ECDSA) to the list of known hosts. 2020/11/19 19:46:24 fuzzer started 2020/11/19 19:46:25 connecting to host at 10.128.0.26:37443 2020/11/19 19:46:25 checking machine... 2020/11/19 19:46:25 checking revisions... 2020/11/19 19:46:25 testing simple program... syzkaller login: [ 64.528057][ T8508] IPVS: ftp: loaded support on port[0] = 21 [ 64.678846][ T8508] chnl_net:caif_netlink_parms(): no params data found [ 64.762691][ T8508] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.770386][ T8508] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.779243][ T8508] device bridge_slave_0 entered promiscuous mode [ 64.791141][ T8508] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.799082][ T8508] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.806739][ T8508] device bridge_slave_1 entered promiscuous mode [ 64.827051][ T8508] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.839771][ T8508] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.862868][ T8508] team0: Port device team_slave_0 added [ 64.870648][ T8508] team0: Port device team_slave_1 added [ 64.888596][ T8508] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.895634][ T8508] 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. [ 64.922507][ T8508] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.936099][ T8508] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.943829][ T8508] 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. [ 64.970880][ T8508] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.999730][ T8508] device hsr_slave_0 entered promiscuous mode [ 65.006703][ T8508] device hsr_slave_1 entered promiscuous mode [ 65.105300][ T8508] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.115739][ T8508] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.128128][ T8508] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 65.138200][ T8508] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.162686][ T8508] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.169889][ T8508] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.177707][ T8508] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.184770][ T8508] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.230742][ T8508] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.244526][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.257139][ T2998] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.266499][ T2998] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.275001][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 65.288972][ T8508] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.301486][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.310307][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.317865][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.329654][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.338411][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.345635][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.369753][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.379527][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.388570][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.405687][ T8508] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 65.416705][ T8508] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.430433][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.439895][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.448741][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.468599][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.475950][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.489149][ T8508] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.507699][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 65.528471][ T3075] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 65.536799][ T3075] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 65.545708][ T3075] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 65.557136][ T8508] device veth0_vlan entered promiscuous mode [ 65.569820][ T8508] device veth1_vlan entered promiscuous mode [ 65.592656][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 65.601216][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 65.609866][ T8721] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 65.621178][ T8508] device veth0_macvtap entered promiscuous mode [ 65.632866][ T8508] device veth1_macvtap entered promiscuous mode [ 65.651731][ T8508] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 65.659333][ T3075] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 65.670991][ T3075] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 65.682475][ T8508] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 65.690546][ T3075] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 65.699331][ T3075] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 65.712605][ T8508] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.722182][ T8508] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.731093][ T8508] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.740885][ T8508] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 65.823737][ T101] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.838822][ T101] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.861584][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 65.883028][ T101] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 65.891280][ T101] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 65.900377][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 65.913889][ T8] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 65.924360][ T8] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 8, name: kworker/u4:0 [ 65.933986][ T8] 4 locks held by kworker/u4:0/8: [ 65.939145][ T8] #0: ffff88801bf9e138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 65.949937][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 65.963574][ T8] #2: ffff888019b64d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 65.973404][ T8] #3: ffffffff8b337820 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 65.983493][ T8] Preemption disabled at: [ 65.983520][ T8] [] __mutex_lock+0x10f/0x10e0 [ 65.994588][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Not tainted 5.10.0-rc4-syzkaller #0 [ 66.002818][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.013042][ T8] Workqueue: phy4 ieee80211_iface_work [ 66.018484][ T8] Call Trace: [ 66.021761][ T8] dump_stack+0x107/0x163 [ 66.026075][ T8] ? __mutex_lock+0x10f/0x10e0 [ 66.030877][ T8] ___might_sleep.cold+0x1e8/0x22e [ 66.035970][ T8] sta_info_move_state+0x32/0x8d0 [ 66.040985][ T8] sta_info_free+0x65/0x3b0 [ 66.045487][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 66.050692][ T8] ? find_held_lock+0x2d/0x110 [ 66.055441][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 66.060974][ T8] ? sta_info_free+0x3b0/0x3b0 [ 66.065722][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 66.070995][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 66.076525][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.082150][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.088209][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 66.093478][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 66.098575][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.105023][ T8] ? mark_held_locks+0x9f/0xe0 [ 66.109784][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.115663][ T8] ? lockdep_hardirqs_on+0x79/0x100 [ 66.120994][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.126806][ T8] ieee80211_iface_work+0x82e/0x970 [ 66.132023][ T8] process_one_work+0x933/0x15a0 [ 66.136959][ T8] ? lock_release+0x710/0x710 [ 66.141620][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.147104][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 66.152032][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 66.157060][ T8] worker_thread+0x64c/0x1120 [ 66.161730][ T8] ? process_one_work+0x15a0/0x15a0 [ 66.167002][ T8] kthread+0x3af/0x4a0 [ 66.171056][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.176937][ T8] ret_from_fork+0x1f/0x30 executing program [ 66.185368][ T8] [ 66.187711][ T8] ============================= [ 66.192555][ T8] [ BUG: Invalid wait context ] [ 66.197424][ T8] 5.10.0-rc4-syzkaller #0 Tainted: G W [ 66.204161][ T8] ----------------------------- [ 66.208994][ T8] kworker/u4:0/8 is trying to lock: [ 66.214161][ T8] ffff8880274c29d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 66.224748][ T8] other info that might help us debug this: [ 66.230609][ T8] context-{4:4} [ 66.234039][ T8] 4 locks held by kworker/u4:0/8: [ 66.239036][ T8] #0: ffff88801bf9e138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 66.249184][ T8] #1: ffffc90000cd7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 66.260366][ T8] #2: ffff888019b64d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 66.269812][ T8] #3: ffffffff8b337820 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 66.279685][ T8] stack backtrace: [ 66.283383][ T8] CPU: 0 PID: 8 Comm: kworker/u4:0 Tainted: G W 5.10.0-rc4-syzkaller #0 [ 66.292986][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.303021][ T8] Workqueue: phy4 ieee80211_iface_work [ 66.308459][ T8] Call Trace: [ 66.311725][ T8] dump_stack+0x107/0x163 [ 66.316047][ T8] __lock_acquire.cold+0x1d6/0x39f [ 66.321143][ T8] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 66.327093][ T8] ? find_held_lock+0x2d/0x110 [ 66.331828][ T8] lock_acquire+0x2a3/0x8c0 [ 66.336306][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.342255][ T8] ? lock_release+0x710/0x710 [ 66.346909][ T8] __mutex_lock+0x134/0x10e0 [ 66.351486][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.357438][ T8] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 66.363390][ T8] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.368748][ T8] ? ieee80211_clear_fast_rx+0x58/0x80 [ 66.374180][ T8] ? mark_held_locks+0x9f/0xe0 [ 66.378928][ T8] ieee80211_recalc_min_chandef+0x49/0x140 [ 66.384709][ T8] sta_info_move_state+0x3cf/0x8d0 [ 66.389803][ T8] sta_info_free+0x65/0x3b0 [ 66.394279][ T8] sta_info_insert_rcu+0x303/0x2ba0 [ 66.399453][ T8] ? find_held_lock+0x2d/0x110 [ 66.404195][ T8] ? rate_control_rate_init+0x32c/0x6a0 [ 66.409716][ T8] ? sta_info_free+0x3b0/0x3b0 [ 66.414453][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 66.419715][ T8] ? rate_control_rate_init+0x35f/0x6a0 [ 66.425234][ T8] ieee80211_ibss_finish_sta+0x212/0x390 [ 66.431101][ T8] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 66.437148][ T8] ? __local_bh_enable_ip+0x9c/0x110 [ 66.442405][ T8] ieee80211_ibss_work+0x2c7/0xe80 [ 66.447490][ T8] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 66.453802][ T8] ? mark_held_locks+0x9f/0xe0 [ 66.458542][ T8] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 66.464320][ T8] ? lockdep_hardirqs_on+0x79/0x100 [ 66.469499][ T8] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 66.475297][ T8] ieee80211_iface_work+0x82e/0x970 [ 66.480487][ T8] process_one_work+0x933/0x15a0 [ 66.485415][ T8] ? lock_release+0x710/0x710 [ 66.490065][ T8] ? pwq_dec_nr_in_flight+0x320/0x320 [ 66.495428][ T8] ? rwlock_bug.part.0+0x90/0x90 [ 66.500357][ T8] ? _raw_spin_lock_irq+0x41/0x50 [ 66.505387][ T8] worker_thread+0x64c/0x1120 [ 66.510108][ T8] ? process_one_work+0x15a0/0x15a0 [ 66.515285][ T8] kthread+0x3af/0x4a0 [ 66.519336][ T8] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.525208][ T8] ret_from_fork+0x1f/0x30 2020/11/19 19:46:28 building call list... [ 66.547418][ T8721] Bluetooth: hci0: command 0x0409 tx timeout [ 66.851365][ T21] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 66.951664][ T21] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.049968][ T21] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 67.142453][ T21] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.353009][ T21] device hsr_slave_0 left promiscuous mode [ 68.360359][ T21] device hsr_slave_1 left promiscuous mode [ 68.366589][ T21] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 68.374538][ T21] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 68.383300][ T21] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 68.391883][ T21] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 68.400497][ T21] device bridge_slave_1 left promiscuous mode [ 68.406712][ T21] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.415183][ T21] device bridge_slave_0 left promiscuous mode [ 68.422197][ T21] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.432540][ T21] device veth1_macvtap left promiscuous mode [ 68.439102][ T21] device veth0_macvtap left promiscuous mode [ 68.445103][ T21] device veth1_vlan left promiscuous mode [ 68.451053][ T21] device veth0_vlan left promiscuous mode executing program [ 69.629857][ T21] team0 (unregistering): Port device team_slave_1 removed [ 69.640912][ T21] team0 (unregistering): Port device team_slave_0 removed [ 69.650330][ T21] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.661393][ T21] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.687912][ T21] bond0 (unregistering): Released all slaves [ 69.749910][ T8487] can: request_module (can-proto-0) failed. [ 70.151358][ T8487] can: request_module (can-proto-0) failed. [ 70.160975][ T8487] can: request_module (can-proto-0) failed. [ 70.296615][ T8487] base_sock_release(0000000071117019) sk=00000000b713d2e4