[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ 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... 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 '10.128.10.19' (ECDSA) to the list of known hosts. 2020/11/09 11:19:11 fuzzer started 2020/11/09 11:19:12 connecting to host at 10.128.0.26:38793 2020/11/09 11:19:12 checking machine... 2020/11/09 11:19:12 checking revisions... 2020/11/09 11:19:12 testing simple program... syzkaller login: [ 72.483245][ T33] audit: type=1400 audit(1604920752.497:8): avc: denied { execmem } for pid=8494 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 73.651810][ T8495] IPVS: ftp: loaded support on port[0] = 21 [ 73.825040][ T8495] chnl_net:caif_netlink_parms(): no params data found [ 73.880505][ T8495] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.889020][ T8495] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.898123][ T8495] device bridge_slave_0 entered promiscuous mode [ 73.908213][ T8495] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.915587][ T8495] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.923642][ T8495] device bridge_slave_1 entered promiscuous mode [ 73.945873][ T8495] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.956970][ T8495] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.981620][ T8495] team0: Port device team_slave_0 added [ 73.989363][ T8495] team0: Port device team_slave_1 added [ 74.007802][ T8495] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.015563][ T8495] 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. [ 74.042128][ T8495] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.055738][ T8495] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.062744][ T8495] 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. [ 74.088705][ T8495] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.117595][ T8495] device hsr_slave_0 entered promiscuous mode [ 74.124347][ T8495] device hsr_slave_1 entered promiscuous mode [ 74.231540][ T8495] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.242484][ T8495] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.252678][ T8495] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.261806][ T8495] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.289354][ T8495] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.296592][ T8495] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.304658][ T8495] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.311734][ T8495] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.361038][ T8495] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.376304][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.387952][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.396754][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.405053][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.418781][ T8495] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.431135][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.440384][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.447498][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.465012][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.473433][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.480458][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.504158][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.513226][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.521606][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.538753][ T8495] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.549998][ T8495] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.558523][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.567135][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.586813][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.594377][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.608907][ T8495] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.629197][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.650166][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.660279][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.669360][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.680518][ T8495] device veth0_vlan entered promiscuous mode [ 74.693941][ T8495] device veth1_vlan entered promiscuous mode [ 74.716250][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.725008][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.734032][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.745714][ T8495] device veth0_macvtap entered promiscuous mode [ 74.756542][ T8495] device veth1_macvtap entered promiscuous mode [ 74.775518][ T8495] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.782981][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.794665][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.807006][ T8495] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.815120][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.824564][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.835968][ T8495] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.845102][ T8495] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.854544][ T8495] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.864402][ T8495] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.962664][ T150] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.972859][ T150] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.984144][ T2987] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.018116][ T194] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.032152][ T194] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.040576][ T4017] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 75.084181][ T150] BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 [ 75.109745][ T150] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 150, name: kworker/u4:4 2020/11/09 11:19:15 building call list... [ 75.142530][ T150] 4 locks held by kworker/u4:4/150: [ 75.147769][ T150] #0: ffff888029bd8138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 executing program [ 75.202336][ T150] #1: ffffc90000ff7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 75.225686][ T150] #2: ffff8880235c0d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 75.238564][ T150] #3: ffffffff8b337060 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 75.261855][ T150] Preemption disabled at: [ 75.261876][ T150] [] __mutex_lock+0x10f/0x10e0 [ 75.291861][ T150] CPU: 1 PID: 150 Comm: kworker/u4:4 Not tainted 5.10.0-rc3-syzkaller #0 [ 75.300297][ T150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.310362][ T150] Workqueue: phy3 ieee80211_iface_work [ 75.315822][ T150] Call Trace: [ 75.319112][ T150] dump_stack+0x107/0x163 [ 75.323447][ T150] ? __mutex_lock+0x10f/0x10e0 [ 75.328212][ T150] ___might_sleep.cold+0x1e8/0x22e [ 75.333331][ T150] sta_info_move_state+0x32/0x8d0 [ 75.338366][ T150] sta_info_free+0x65/0x3b0 [ 75.342878][ T150] sta_info_insert_rcu+0x303/0x2ba0 [ 75.348079][ T150] ? find_held_lock+0x2d/0x110 [ 75.352856][ T150] ? rate_control_rate_init+0x32c/0x6a0 [ 75.358416][ T150] ? sta_info_free+0x3b0/0x3b0 [ 75.363186][ T150] ? __local_bh_enable_ip+0x9c/0x110 [ 75.368477][ T150] ? rate_control_rate_init+0x35f/0x6a0 [ 75.374034][ T150] ieee80211_ibss_finish_sta+0x212/0x390 [ 75.379676][ T150] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 75.385758][ T150] ? __local_bh_enable_ip+0x9c/0x110 [ 75.391045][ T150] ieee80211_ibss_work+0x2c7/0xe80 [ 75.396172][ T150] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 75.402490][ T150] ? mark_held_locks+0x9f/0xe0 [ 75.407249][ T150] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 75.413040][ T150] ? lockdep_hardirqs_on+0x79/0x100 [ 75.418231][ T150] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 75.424024][ T150] ieee80211_iface_work+0x82e/0x970 [ 75.429229][ T150] process_one_work+0x933/0x15a0 [ 75.434159][ T150] ? lock_release+0x710/0x710 [ 75.438817][ T150] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.444178][ T150] ? rwlock_bug.part.0+0x90/0x90 [ 75.449098][ T150] ? _raw_spin_lock_irq+0x41/0x50 [ 75.454114][ T150] worker_thread+0x64c/0x1120 [ 75.458796][ T150] ? process_one_work+0x15a0/0x15a0 [ 75.463979][ T150] kthread+0x3af/0x4a0 [ 75.468032][ T150] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 75.473920][ T150] ret_from_fork+0x1f/0x30 [ 75.496136][ T150] [ 75.498483][ T150] ============================= [ 75.503320][ T150] [ BUG: Invalid wait context ] [ 75.508155][ T150] 5.10.0-rc3-syzkaller #0 Tainted: G W [ 75.514895][ T150] ----------------------------- [ 75.519727][ T150] kworker/u4:4/150 is trying to lock: [ 75.525088][ T150] ffff8880299429d0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_recalc_min_chandef+0x49/0x140 [ 75.535687][ T150] other info that might help us debug this: [ 75.541587][ T150] context-{4:4} [ 75.545034][ T150] 4 locks held by kworker/u4:4/150: [ 75.550212][ T150] #0: ffff888029bd8138 ((wq_completion)phy3){+.+.}-{0:0}, at: process_one_work+0x821/0x15a0 [ 75.560385][ T150] #1: ffffc90000ff7da8 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x854/0x15a0 [ 75.571598][ T150] #2: ffff8880235c0d00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x93/0xe80 [ 75.581076][ T150] #3: ffffffff8b337060 (rcu_read_lock){....}-{1:2}, at: sta_info_insert_rcu+0x680/0x2ba0 [ 75.590993][ T150] stack backtrace: [ 75.594708][ T150] CPU: 1 PID: 150 Comm: kworker/u4:4 Tainted: G W 5.10.0-rc3-syzkaller #0 [ 75.604493][ T150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.614549][ T150] Workqueue: phy3 ieee80211_iface_work [ 75.619996][ T150] Call Trace: [ 75.623276][ T150] dump_stack+0x107/0x163 [ 75.627598][ T150] __lock_acquire.cold+0x310/0x3a2 [ 75.632704][ T150] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 75.638671][ T150] ? find_held_lock+0x2d/0x110 [ 75.643687][ T150] lock_acquire+0x2a3/0x8c0 [ 75.648185][ T150] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 75.654154][ T150] ? lock_release+0x710/0x710 [ 75.658823][ T150] __mutex_lock+0x134/0x10e0 [ 75.663408][ T150] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 75.669379][ T150] ? ieee80211_recalc_min_chandef+0x49/0x140 [ 75.675349][ T150] ? mutex_lock_io_nested+0xf60/0xf60 [ 75.680714][ T150] ? ieee80211_clear_fast_rx+0x58/0x80 [ 75.686169][ T150] ? mark_held_locks+0x9f/0xe0 [ 75.690930][ T150] ieee80211_recalc_min_chandef+0x49/0x140 [ 75.696726][ T150] sta_info_move_state+0x3cf/0x8d0 [ 75.701827][ T150] sta_info_free+0x65/0x3b0 [ 75.706321][ T150] sta_info_insert_rcu+0x303/0x2ba0 [ 75.711511][ T150] ? find_held_lock+0x2d/0x110 [ 75.716266][ T150] ? rate_control_rate_init+0x32c/0x6a0 [ 75.721804][ T150] ? sta_info_free+0x3b0/0x3b0 [ 75.726565][ T150] ? __local_bh_enable_ip+0x9c/0x110 [ 75.731843][ T150] ? rate_control_rate_init+0x35f/0x6a0 [ 75.737386][ T150] ieee80211_ibss_finish_sta+0x212/0x390 [ 75.743025][ T150] ? ieee80211_ibss_build_presp+0x15f0/0x15f0 [ 75.749095][ T150] ? __local_bh_enable_ip+0x9c/0x110 [ 75.754372][ T150] ieee80211_ibss_work+0x2c7/0xe80 [ 75.759475][ T150] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 75.765805][ T150] ? mark_held_locks+0x9f/0xe0 [ 75.770564][ T150] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 75.776358][ T150] ? lockdep_hardirqs_on+0x79/0x100 [ 75.781550][ T150] ? _raw_spin_unlock_irqrestore+0x2f/0x50 [ 75.787347][ T150] ieee80211_iface_work+0x82e/0x970 [ 75.792537][ T150] process_one_work+0x933/0x15a0 [ 75.797475][ T150] ? lock_release+0x710/0x710 [ 75.802143][ T150] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.807507][ T150] ? rwlock_bug.part.0+0x90/0x90 [ 75.812440][ T150] ? _raw_spin_lock_irq+0x41/0x50 [ 75.817457][ T150] worker_thread+0x64c/0x1120 [ 75.822126][ T150] ? process_one_work+0x15a0/0x15a0 [ 75.827327][ T150] kthread+0x3af/0x4a0 [ 75.831384][ T150] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 75.837265][ T150] ret_from_fork+0x1f/0x30 [ 75.844503][ T17] Bluetooth: hci0: command 0x0409 tx timeout [ 76.011639][ T21] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.087715][ T8495] syz-executor.0 (8495) used greatest stack depth: 23408 bytes left [ 76.135055][ T21] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.237166][ T21] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 76.318192][ T21] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 77.527195][ T21] device hsr_slave_0 left promiscuous mode [ 77.535026][ T21] device hsr_slave_1 left promiscuous mode [ 77.541341][ T21] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 77.550269][ T21] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 77.559288][ T21] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 77.568075][ T21] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 77.576892][ T21] device bridge_slave_1 left promiscuous mode [ 77.583551][ T21] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.592696][ T21] device bridge_slave_0 left promiscuous mode [ 77.598892][ T21] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.610495][ T21] device veth1_macvtap left promiscuous mode [ 77.617260][ T21] device veth0_macvtap left promiscuous mode [ 77.623684][ T21] device veth1_vlan left promiscuous mode [ 77.629456][ T21] device veth0_vlan left promiscuous mode executing program [ 78.494292][ T21] team0 (unregistering): Port device team_slave_1 removed [ 78.506278][ T21] team0 (unregistering): Port device team_slave_0 removed [ 78.515920][ T21] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 78.526804][ T21] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 78.553836][ T21] bond0 (unregistering): Released all slaves [ 78.615993][ T8478] can: request_module (can-proto-0) failed. [ 79.008384][ T8478] can: request_module (can-proto-0) failed. [ 79.018019][ T8478] can: request_module (can-proto-0) failed. [ 79.050027][ T33] audit: type=1400 audit(1604920759.058:9): avc: denied { create } for pid=8478 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 [ 79.170182][ T8478] base_sock_release(00000000917faf51) sk=000000000f0535de