[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ 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 '10.128.0.130' (ECDSA) to the list of known hosts. 2020/11/19 09:48:07 fuzzer started 2020/11/19 09:48:07 connecting to host at 10.128.0.26:33531 2020/11/19 09:48:07 checking machine... 2020/11/19 09:48:07 checking revisions... 2020/11/19 09:48:08 testing simple program... syzkaller login: [ 65.736781][ T8517] IPVS: ftp: loaded support on port[0] = 21 [ 65.917017][ T8517] chnl_net:caif_netlink_parms(): no params data found [ 65.973308][ T8517] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.981020][ T8517] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.991587][ T8517] device bridge_slave_0 entered promiscuous mode [ 66.001307][ T8517] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.010187][ T8517] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.018592][ T8517] device bridge_slave_1 entered promiscuous mode [ 66.040909][ T8517] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.051999][ T8517] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.077092][ T8517] team0: Port device team_slave_0 added [ 66.085720][ T8517] team0: Port device team_slave_1 added [ 66.105556][ T8517] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.112551][ T8517] 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. [ 66.139608][ T8517] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.153608][ T8517] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.160588][ T8517] 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. [ 66.188046][ T8517] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.216017][ T8517] device hsr_slave_0 entered promiscuous mode [ 66.224620][ T8517] device hsr_slave_1 entered promiscuous mode [ 66.327228][ T8517] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.338389][ T8517] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.354675][ T8517] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.364153][ T8517] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.391684][ T8517] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.398976][ T8517] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.407488][ T8517] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.415161][ T8517] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.468665][ T8517] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.482624][ T56] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.496780][ T56] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.506061][ T56] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.515136][ T56] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 66.529241][ T8517] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.541902][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.552165][ T4928] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.559635][ T4928] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.584703][ T56] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.594028][ T56] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.601522][ T56] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.610817][ T56] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.620334][ T56] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.639140][ T8517] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 66.650894][ T8517] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.665356][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.675350][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.685152][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.694954][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.714784][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.722438][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.735878][ T8517] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.757241][ T56] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.778327][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.788021][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.797938][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.810946][ T8517] device veth0_vlan entered promiscuous mode [ 66.824461][ T8517] device veth1_vlan entered promiscuous mode [ 66.848980][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.857082][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 66.867352][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 66.880663][ T8517] device veth0_macvtap entered promiscuous mode [ 66.892544][ T8517] device veth1_macvtap entered promiscuous mode [ 66.900924][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 66.921112][ T8517] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 66.929071][ T56] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 66.938447][ T56] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 66.951210][ T8517] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 66.963215][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 66.973662][ T4928] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 66.985760][ T8517] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 66.997249][ T8517] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.008341][ T8517] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.019390][ T8517] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.109318][ T27] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.119598][ T27] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.134965][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.176302][ T27] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.185414][ T27] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.201350][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 67.239024][ T375] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 67.252020][ T375] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 375, name: kworker/u4:5 [ 67.262632][ T375] 4 locks held by kworker/u4:5/375: [ 67.268422][ T375] #0: ffff88802816d138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 67.282305][ T375] #1: ffffc9000217fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.296287][ T375] #2: ffff88801c970d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.308144][ T375] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.320520][ T375] Preemption disabled at: [ 67.320552][ T375] [] __mutex_lock+0x10f/0x10e0 [ 67.333242][ T375] CPU: 0 PID: 375 Comm: kworker/u4:5 Not tainted 5.10.0-rc3-syzkaller #0 [ 67.341768][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.351876][ T375] Workqueue: phy3 ieee80211_iface_work [ 67.357536][ T375] Call Trace: [ 67.360958][ T375] dump_stack+0x107/0x163 [ 67.365306][ T375] ? __mutex_lock+0x10f/0x10e0 [ 67.370082][ T375] ___might_sleep.cold+0x1e8/0x22e [ 67.375992][ T375] sta_info_move_state+0x32/0x8d0 [ 67.381239][ T375] sta_info_free+0x65/0x3b0 [ 67.386425][ T375] sta_info_insert_rcu+0x303/0x2ba0 [ 67.394444][ T375] ? find_held_lock+0x2d/0x110 [ 67.400994][ T375] ? rate_control_rate_init+0x32c/0x6a0 [ 67.407474][ T375] ? sta_info_free+0x3b0/0x3b0 [ 67.412412][ T375] ? __local_bh_enable_ip+0x9c/0x110 [ 67.417818][ T375] ? rate_control_rate_init+0x35f/0x6a0 [ 67.423669][ T375] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.430538][ T375] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.436979][ T375] ? __local_bh_enable_ip+0x9c/0x110 [ 67.442402][ T375] ieee80211_ibss_work+0x2c7/0xe80 [ 67.447509][ T375] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.453848][ T375] ? mark_held_locks+0x9f/0xe0 [ 67.458727][ T375] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 67.464532][ T375] ? lockdep_hardirqs_on+0x79/0x100 [ 67.469810][ T375] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 67.475664][ T375] ieee80211_iface_work+0x91f/0xa90 [ 67.482222][ T375] process_one_work+0x933/0x15a0 [ 67.490173][ T375] ? lock_release+0x710/0x710 [ 67.496790][ T375] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.505649][ T375] ? rwlock_bug.part.0+0x90/0x90 [ 67.511053][ T375] ? _raw_spin_lock_irq+0x41/0x50 [ 67.516278][ T375] worker_thread+0x64c/0x1120 [ 67.521370][ T375] ? __kthread_parkme+0x13f/0x1e0 [ 67.529270][ T375] ? process_one_work+0x15a0/0x15a0 [ 67.534470][ T375] kthread+0x3af/0x4a0 [ 67.538540][ T375] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 67.544433][ T375] ret_from_fork+0x1f/0x30 [ 67.583243][ T375] [ 67.585611][ T375] ============================= [ 67.590456][ T375] [ BUG: Invalid wait context ] [ 67.595303][ T375] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 67.602059][ T375] ----------------------------- [ 67.606903][ T375] kworker/u4:5/375 is trying to lock: [ 67.612452][ T375] ffff88801beb29d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 67.624225][ T375] other info that might help us debug this: [ 67.630143][ T375] context-{4:4} [ 67.633705][ T375] 4 locks held by kworker/u4:5/375: [ 67.638895][ T375] #0: ffff88802816d138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 67.650380][ T375] #1: ffffc9000217fda8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 67.661686][ T375] #2: ffff88801c970d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 67.671170][ T375] #3: ffffffff8b337160 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 67.684398][ T375] stack backtrace: [ 67.688322][ T375] CPU: 0 PID: 375 Comm: kworker/u4:5 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 67.698515][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.708771][ T375] Workqueue: phy3 ieee80211_iface_work [ 67.714233][ T375] Call Trace: [ 67.717546][ T375] dump_stack+0x107/0x163 [ 67.721892][ T375] __lock_acquire.cold+0x310/0x3a2 [ 67.727000][ T375] ? lockdep_hardirqs_on_prepare+0x400/0x400 2020/11/19 09:48:11 building call list... [ 67.732978][ T375] ? find_held_lock+0x2d/0x110 [ 67.737861][ T375] lock_acquire+0x2a3/0x8c0 [ 67.742743][ T375] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.748734][ T375] ? lock_release+0x710/0x710 [ 67.752948][ T8736] Bluetooth: hci0: command 0x0409 tx timeout [ 67.753409][ T375] __mutex_lock+0x134/0x10e0 [ 67.763984][ T375] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.770423][ T375] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 67.776413][ T375] ? mutex_lock_io_nested+0xf60/0xf60 [ 67.781797][ T375] ? ieee80211_clear_fast_rx+0x58/0x80 [ 67.787794][ T375] ? mark_held_locks+0x9f/0xe0 [ 67.792568][ T375] ieee80211_recalc_min_chandef+0x49/0x140 [ 67.798642][ T375] sta_info_move_state+0x3cf/0x8d0 [ 67.803753][ T375] sta_info_free+0x65/0x3b0 [ 67.808262][ T375] sta_info_insert_rcu+0x303/0x2ba0 [ 67.813468][ T375] ? find_held_lock+0x2d/0x110 [ 67.818339][ T375] ? rate_control_rate_init+0x32c/0x6a0 [ 67.824095][ T375] ? sta_info_free+0x3b0/0x3b0 [ 67.828867][ T375] ? __local_bh_enable_ip+0x9c/0x110 [ 67.834170][ T375] ? rate_control_rate_init+0x35f/0x6a0 [ 67.839735][ T375] ieee80211_ibss_finish_sta+0x212/0x390 [ 67.845531][ T375] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 67.851604][ T375] ? __local_bh_enable_ip+0x9c/0x110 [ 67.856889][ T375] ieee80211_ibss_work+0x2c7/0xe80 [ 67.862008][ T375] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 67.868344][ T375] ? mark_held_locks+0x9f/0xe0 [ 67.873116][ T375] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 67.878920][ T375] ? lockdep_hardirqs_on+0x79/0x100 [ 67.884120][ T375] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 67.889928][ T375] ieee80211_iface_work+0x91f/0xa90 [ 67.895134][ T375] process_one_work+0x933/0x15a0 [ 67.900076][ T375] ? lock_release+0x710/0x710 [ 67.904759][ T375] ? pwq_dec_nr_in_flight+0x320/0x320 [ 67.910135][ T375] ? rwlock_bug.part.0+0x90/0x90 [ 67.915079][ T375] ? _raw_spin_lock_irq+0x41/0x50 [ 67.920114][ T375] worker_thread+0x64c/0x1120 [ 67.924806][ T375] ? __kthread_parkme+0x13f/0x1e0 [ 67.929828][ T375] ? process_one_work+0x15a0/0x15a0 [ 67.935019][ T375] kthread+0x3af/0x4a0 [ 67.939092][ T375] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 67.944985][ T375] ret_from_fork+0x1f/0x30 [ 68.130357][ T375] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.203821][ T375] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.294637][ T375] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 68.399616][ T375] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 69.633308][ T375] device hsr_slave_0 left promiscuous mode [ 69.642744][ T375] device hsr_slave_1 left promiscuous mode [ 69.655569][ T375] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 69.663797][ T375] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 69.671731][ T375] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 69.679992][ T375] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 69.688910][ T375] device bridge_slave_1 left promiscuous mode [ 69.695603][ T375] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.704047][ T375] device bridge_slave_0 left promiscuous mode [ 69.710456][ T375] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.721943][ T375] device veth1_macvtap left promiscuous mode [ 69.728325][ T375] device veth0_macvtap left promiscuous mode [ 69.734865][ T375] device veth1_vlan left promiscuous mode [ 69.740613][ T375] device veth0_vlan left promiscuous mode executing program [ 70.807742][ T375] team0 (unregistering): Port device team_slave_1 removed [ 70.817932][ T375] team0 (unregistering): Port device team_slave_0 removed [ 70.831416][ T375] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 70.843298][ T375] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 70.870898][ T375] bond0 (unregistering): Released all slaves [ 70.973998][ T8500] can: request_module (can-proto-0) failed. [ 71.337009][ T8500] can: request_module (can-proto-0) failed. [ 71.347789][ T8500] can: request_module (can-proto-0) failed. [ 71.496207][ T8500] base_sock_release(000000003bafb253) sk=000000008061ab4f