Warning: Permanently added '10.128.0.80' (ECDSA) to the list of known hosts. 2021/09/02 03:54:19 parsed 1 programs 2021/09/02 03:54:19 executed programs: 0 syzkaller login: [ 1580.267172] IPVS: ftp: loaded support on port[0] = 21 [ 1580.390764] chnl_net:caif_netlink_parms(): no params data found [ 1580.559416] bridge0: port 1(bridge_slave_0) entered blocking state [ 1580.566255] bridge0: port 1(bridge_slave_0) entered disabled state [ 1580.574042] device bridge_slave_0 entered promiscuous mode [ 1580.581525] bridge0: port 2(bridge_slave_1) entered blocking state [ 1580.588067] bridge0: port 2(bridge_slave_1) entered disabled state [ 1580.594990] device bridge_slave_1 entered promiscuous mode [ 1580.613445] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1580.622319] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1580.640907] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1580.648600] team0: Port device team_slave_0 added [ 1580.654191] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1580.661813] team0: Port device team_slave_1 added [ 1580.676751] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1580.683049] 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. [ 1580.708478] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1580.720180] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1580.726411] 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. [ 1580.751687] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1580.762727] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1580.770376] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1580.789902] device hsr_slave_0 entered promiscuous mode [ 1580.795617] device hsr_slave_1 entered promiscuous mode [ 1580.802110] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1580.809376] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1580.874948] bridge0: port 2(bridge_slave_1) entered blocking state [ 1580.881637] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1580.888571] bridge0: port 1(bridge_slave_0) entered blocking state [ 1580.894917] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1580.927485] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 1580.934765] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1580.943406] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1580.953155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1580.961598] bridge0: port 1(bridge_slave_0) entered disabled state [ 1580.968899] bridge0: port 2(bridge_slave_1) entered disabled state [ 1580.975849] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1580.986386] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1580.993531] 8021q: adding VLAN 0 to HW filter on device team0 [ 1581.002207] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1581.010576] bridge0: port 1(bridge_slave_0) entered blocking state [ 1581.016904] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1581.026972] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1581.034866] bridge0: port 2(bridge_slave_1) entered blocking state [ 1581.041255] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1581.061422] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 1581.071348] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1581.082103] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1581.090314] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1581.098952] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1581.106475] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1581.115580] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1581.124273] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1581.131482] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1581.144443] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1581.152142] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1581.158962] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1581.170865] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1581.182922] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 1581.192665] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1581.225536] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 1581.233134] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 1581.240496] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 1581.250597] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1581.258630] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1581.265476] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1581.274881] device veth0_vlan entered promiscuous mode [ 1581.284212] device veth1_vlan entered promiscuous mode [ 1581.290572] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 1581.299549] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 1581.311800] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 1581.321125] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1581.329384] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1581.336671] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1581.347354] device veth0_macvtap entered promiscuous mode [ 1581.354178] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 1581.362397] device veth1_macvtap entered promiscuous mode [ 1581.371752] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 1581.379670] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1581.390062] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 1581.399198] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 1581.406316] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1581.413272] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1581.421550] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1581.431935] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 1581.439010] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1581.445602] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1581.453915] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1581.562639] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 1581.570224] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1581.577360] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1581.594668] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1581.606231] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 1581.613182] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1581.620594] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1581.627292] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1582.318574] Bluetooth: hci0: command 0x0409 tx timeout 2021/09/02 03:54:24 executed programs: 3 [ 1584.397904] Bluetooth: hci0: command 0x041b tx timeout [ 1586.478002] Bluetooth: hci0: command 0x040f tx timeout [ 1588.557496] Bluetooth: hci0: command 0x0419 tx timeout 2021/09/02 03:54:29 executed programs: 9 [ 1590.637389] Bluetooth: hci0: command 0x0405 tx timeout 2021/09/02 03:54:34 executed programs: 15 2021/09/02 03:54:40 executed programs: 21 2021/09/02 03:54:45 executed programs: 27 [ 1608.477887] ieee802154 phy0 wpan0: encryption failed: -22 [ 1608.483581] ieee802154 phy1 wpan1: encryption failed: -22 2021/09/02 03:54:50 executed programs: 33 2021/09/02 03:54:55 executed programs: 39 2021/09/02 03:55:00 executed programs: 45 [ 1622.556441] ================================================================== [ 1622.563915] BUG: KASAN: use-after-free in __lock_acquire+0x2cb4/0x3ff0 [ 1622.570591] Read of size 8 at addr ffff8880aafa29a0 by task kworker/0:2/8281 [ 1622.577751] [ 1622.579361] CPU: 0 PID: 8281 Comm: kworker/0:2 Not tainted 4.19.205-syzkaller #0 [ 1622.586961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1622.596312] Workqueue: events l2cap_chan_timeout [ 1622.601050] Call Trace: [ 1622.603617] dump_stack+0x1fc/0x2ef [ 1622.607246] print_address_description.cold+0x54/0x219 [ 1622.612512] kasan_report_error.cold+0x8a/0x1b9 [ 1622.617175] ? __lock_acquire+0x2cb4/0x3ff0 [ 1622.621477] __asan_report_load8_noabort+0x88/0x90 [ 1622.626471] ? __lock_acquire+0x2cb4/0x3ff0 [ 1622.630776] __lock_acquire+0x2cb4/0x3ff0 [ 1622.634907] ? trace_hardirqs_off+0x64/0x200 [ 1622.639327] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 1622.644406] ? debug_object_assert_init+0x242/0x2e0 [ 1622.649414] ? mark_held_locks+0xf0/0xf0 [ 1622.653450] ? debug_object_free+0x380/0x380 [ 1622.657837] ? mark_held_locks+0xf0/0xf0 [ 1622.661881] ? __save_stack_trace+0x9f/0x190 [ 1622.666276] ? del_timer+0xc3/0x100 [ 1622.669881] lock_acquire+0x170/0x3c0 [ 1622.673749] ? lock_sock_nested+0x3b/0x110 [ 1622.677962] _raw_spin_lock_bh+0x2f/0x40 [ 1622.682010] ? lock_sock_nested+0x3b/0x110 [ 1622.686220] lock_sock_nested+0x3b/0x110 [ 1622.690267] l2cap_sock_teardown_cb+0xa0/0x6d0 [ 1622.694828] ? lock_downgrade+0x720/0x720 [ 1622.698954] l2cap_chan_del+0xbc/0xa50 [ 1622.702835] ? trace_hardirqs_off+0x64/0x200 [ 1622.707227] l2cap_chan_close+0x1b5/0x950 [ 1622.711357] ? __set_monitor_timer+0x200/0x200 [ 1622.715948] ? check_preemption_disabled+0x41/0x280 [ 1622.721065] l2cap_chan_timeout+0x17e/0x2f0 [ 1622.725376] process_one_work+0x864/0x1570 [ 1622.729677] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 1622.734342] worker_thread+0x64c/0x1130 [ 1622.738336] ? __kthread_parkme+0x133/0x1e0 [ 1622.742635] ? process_one_work+0x1570/0x1570 [ 1622.747104] kthread+0x33f/0x460 [ 1622.750446] ? kthread_park+0x180/0x180 [ 1622.754395] ret_from_fork+0x24/0x30 [ 1622.758087] [ 1622.759698] Allocated by task 8402: [ 1622.763301] __kmalloc+0x15a/0x3c0 [ 1622.766927] sk_prot_alloc+0x1e2/0x2d0 [ 1622.770791] sk_alloc+0x36/0xec0 [ 1622.774148] l2cap_sock_alloc.constprop.0+0x31/0x210 [ 1622.779228] l2cap_sock_create+0x123/0x1f0 [ 1622.783436] bt_sock_create+0x154/0x2a0 [ 1622.787387] __sock_create+0x3d8/0x740 [ 1622.791249] __sys_socket+0xef/0x200 [ 1622.794945] __x64_sys_socket+0x6f/0xb0 [ 1622.798909] do_syscall_64+0xf9/0x620 [ 1622.802693] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1622.807940] [ 1622.809545] Freed by task 8402: [ 1622.812809] kfree+0xcc/0x210 [ 1622.815985] __sk_destruct+0x684/0x8a0 [ 1622.819852] __sk_free+0x165/0x3b0 [ 1622.823367] sk_free+0x3b/0x50 [ 1622.826537] l2cap_sock_kill.part.0+0x124/0x150 [ 1622.831179] l2cap_sock_release+0x1e6/0x290 [ 1622.835477] __sock_release+0xcd/0x2a0 [ 1622.839344] sock_close+0x15/0x20 [ 1622.842781] __fput+0x2ce/0x890 [ 1622.846053] task_work_run+0x148/0x1c0 [ 1622.849926] get_signal+0x1b64/0x1f70 [ 1622.853701] do_signal+0x8f/0x1670 [ 1622.857220] exit_to_usermode_loop+0x204/0x2a0 [ 1622.861774] do_syscall_64+0x538/0x620 [ 1622.865639] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1622.870803] [ 1622.872411] The buggy address belongs to the object at ffff8880aafa2900 [ 1622.872411] which belongs to the cache kmalloc-2048 of size 2048 [ 1622.885235] The buggy address is located 160 bytes inside of [ 1622.885235] 2048-byte region [ffff8880aafa2900, ffff8880aafa3100) [ 1622.897167] The buggy address belongs to the page: [ 1622.902077] page:ffffea0002abe880 count:1 mapcount:0 mapping:ffff88813bff0c40 index:0x0 compound_mapcount: 0 [ 1622.912030] flags: 0xfff00000008100(slab|head) [ 1622.916590] raw: 00fff00000008100 ffffea0002abb088 ffffea0002ab7208 ffff88813bff0c40 [ 1622.924445] raw: 0000000000000000 ffff8880aafa2080 0000000100000003 0000000000000000 [ 1622.932309] page dumped because: kasan: bad access detected [ 1622.938041] [ 1622.939646] Memory state around the buggy address: [ 1622.944555] ffff8880aafa2880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 1622.951896] ffff8880aafa2900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1622.959245] >ffff8880aafa2980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1622.966580] ^ [ 1622.970978] ffff8880aafa2a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1622.978313] ffff8880aafa2a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1622.985654] ================================================================== [ 1622.992992] Disabling lock debugging due to kernel taint [ 1622.998414] Kernel panic - not syncing: panic_on_warn set ... [ 1622.998414] [ 1623.005842] CPU: 0 PID: 8281 Comm: kworker/0:2 Tainted: G B 4.19.205-syzkaller #0 [ 1623.014734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1623.024075] Workqueue: events l2cap_chan_timeout [ 1623.028803] Call Trace: [ 1623.031372] dump_stack+0x1fc/0x2ef [ 1623.034984] panic+0x26a/0x50e [ 1623.038158] ? __warn_printk+0xf3/0xf3 [ 1623.042051] ? lock_downgrade+0x720/0x720 [ 1623.046181] ? print_shadow_for_address+0xb8/0x114 [ 1623.051097] ? trace_hardirqs_off+0x64/0x200 [ 1623.055496] kasan_end_report+0x43/0x49 [ 1623.059464] kasan_report_error.cold+0xa7/0x1b9 [ 1623.064208] ? __lock_acquire+0x2cb4/0x3ff0 [ 1623.068515] __asan_report_load8_noabort+0x88/0x90 [ 1623.073425] ? __lock_acquire+0x2cb4/0x3ff0 [ 1623.077835] __lock_acquire+0x2cb4/0x3ff0 [ 1623.081963] ? trace_hardirqs_off+0x64/0x200 [ 1623.086363] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 1623.091445] ? debug_object_assert_init+0x242/0x2e0 [ 1623.096443] ? mark_held_locks+0xf0/0xf0 [ 1623.100484] ? debug_object_free+0x380/0x380 [ 1623.104874] ? mark_held_locks+0xf0/0xf0 [ 1623.108967] ? __save_stack_trace+0x9f/0x190 [ 1623.113370] ? del_timer+0xc3/0x100 [ 1623.116982] lock_acquire+0x170/0x3c0 [ 1623.120761] ? lock_sock_nested+0x3b/0x110 [ 1623.125006] _raw_spin_lock_bh+0x2f/0x40 [ 1623.129047] ? lock_sock_nested+0x3b/0x110 [ 1623.133270] lock_sock_nested+0x3b/0x110 [ 1623.137317] l2cap_sock_teardown_cb+0xa0/0x6d0 [ 1623.141884] ? lock_downgrade+0x720/0x720 [ 1623.146011] l2cap_chan_del+0xbc/0xa50 [ 1623.149878] ? trace_hardirqs_off+0x64/0x200 [ 1623.154264] l2cap_chan_close+0x1b5/0x950 [ 1623.158391] ? __set_monitor_timer+0x200/0x200 [ 1623.162955] ? check_preemption_disabled+0x41/0x280 [ 1623.167948] l2cap_chan_timeout+0x17e/0x2f0 [ 1623.172311] process_one_work+0x864/0x1570 [ 1623.176528] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 1623.181175] worker_thread+0x64c/0x1130 [ 1623.185134] ? __kthread_parkme+0x133/0x1e0 [ 1623.189437] ? process_one_work+0x1570/0x1570 [ 1623.193932] kthread+0x33f/0x460 [ 1623.197275] ? kthread_park+0x180/0x180 [ 1623.201254] ret_from_fork+0x24/0x30 [ 1623.206187] Kernel Offset: disabled [ 1623.209889] Rebooting in 86400 seconds..