Warning: Permanently added '10.128.1.32' (ECDSA) to the list of known hosts. 2021/01/30 10:50:21 parsed 1 programs 2021/01/30 10:50:21 executed programs: 0 [ 411.116227] IPVS: ftp: loaded support on port[0] = 21 [ 411.194684] chnl_net:caif_netlink_parms(): no params data found [ 411.286079] bridge0: port 1(bridge_slave_0) entered blocking state [ 411.293282] bridge0: port 1(bridge_slave_0) entered disabled state [ 411.300409] device bridge_slave_0 entered promiscuous mode [ 411.308568] bridge0: port 2(bridge_slave_1) entered blocking state [ 411.315436] bridge0: port 2(bridge_slave_1) entered disabled state [ 411.322363] device bridge_slave_1 entered promiscuous mode [ 411.338629] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 411.347297] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 411.365243] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 411.372356] team0: Port device team_slave_0 added [ 411.378388] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 411.385904] team0: Port device team_slave_1 added [ 411.400420] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 411.406702] 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. [ 411.433410] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 411.445709] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 411.451930] 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. [ 411.477779] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 411.488419] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 411.495992] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 411.514079] device hsr_slave_0 entered promiscuous mode [ 411.519775] device hsr_slave_1 entered promiscuous mode [ 411.525928] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 411.533218] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 411.592984] bridge0: port 2(bridge_slave_1) entered blocking state [ 411.599412] bridge0: port 2(bridge_slave_1) entered forwarding state [ 411.606314] bridge0: port 1(bridge_slave_0) entered blocking state [ 411.612720] bridge0: port 1(bridge_slave_0) entered forwarding state [ 411.640364] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 411.647540] 8021q: adding VLAN 0 to HW filter on device bond0 [ 411.655779] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 411.664790] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 411.683780] bridge0: port 1(bridge_slave_0) entered disabled state [ 411.690877] bridge0: port 2(bridge_slave_1) entered disabled state [ 411.701124] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 411.707764] 8021q: adding VLAN 0 to HW filter on device team0 [ 411.716468] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 411.724218] bridge0: port 1(bridge_slave_0) entered blocking state [ 411.730557] bridge0: port 1(bridge_slave_0) entered forwarding state [ 411.743482] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 411.751098] bridge0: port 2(bridge_slave_1) entered blocking state [ 411.757482] bridge0: port 2(bridge_slave_1) entered forwarding state [ 411.767931] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 411.775547] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 411.785293] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 411.797438] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 411.807509] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 411.819217] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 411.825935] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 411.834401] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 411.841827] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 411.854774] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 411.863092] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 411.869730] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 411.880787] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 411.931905] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 411.941991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 411.967646] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 411.974773] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 411.981148] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 411.993834] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 412.001195] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 412.008514] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 412.017589] device veth0_vlan entered promiscuous mode [ 412.026283] device veth1_vlan entered promiscuous mode [ 412.032085] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 412.040534] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 412.050996] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 412.060421] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 412.067777] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 412.075362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 412.084466] device veth0_macvtap entered promiscuous mode [ 412.090477] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 412.099060] device veth1_macvtap entered promiscuous mode [ 412.107216] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 412.116668] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 412.126921] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 412.133974] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 412.141903] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 412.152129] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 412.159399] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 412.183610] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 413.133556] Bluetooth: hci0 command 0x0409 tx timeout [ 415.222710] Bluetooth: hci0 command 0x041b tx timeout 2021/01/30 10:50:27 executed programs: 4 [ 417.292553] Bluetooth: hci0 command 0x040f tx timeout [ 419.372200] Bluetooth: hci0 command 0x0419 tx timeout 2021/01/30 10:50:32 executed programs: 10 [ 421.452137] Bluetooth: hci0 command 0x0405 tx timeout 2021/01/30 10:50:37 executed programs: 16 2021/01/30 10:50:42 executed programs: 22 2021/01/30 10:50:47 executed programs: 28 2021/01/30 10:50:52 executed programs: 34 2021/01/30 10:50:57 executed programs: 40 2021/01/30 10:51:02 executed programs: 46 2021/01/30 10:51:07 executed programs: 52 2021/01/30 10:51:12 executed programs: 58 2021/01/30 10:51:17 executed programs: 64 [ 469.530376] ================================================================== [ 469.537865] BUG: KASAN: use-after-free in __lock_acquire+0x2c57/0x3f20 [ 469.544513] Read of size 8 at addr ffff88809374c1a0 by task kworker/0:0/8195 [ 469.551675] [ 469.553371] CPU: 0 PID: 8195 Comm: kworker/0:0 Not tainted 4.14.217-syzkaller #0 [ 469.560876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 469.570220] Workqueue: events l2cap_chan_timeout [ 469.574952] Call Trace: [ 469.577522] dump_stack+0x1b2/0x281 [ 469.581125] print_address_description.cold+0x54/0x1d3 [ 469.586377] kasan_report_error.cold+0x8a/0x191 [ 469.591023] ? __lock_acquire+0x2c57/0x3f20 [ 469.595322] __asan_report_load8_noabort+0x68/0x70 [ 469.600227] ? __lock_acquire+0x2c57/0x3f20 [ 469.604522] __lock_acquire+0x2c57/0x3f20 [ 469.608680] ? lock_acquire+0x170/0x3f0 [ 469.612629] ? lock_downgrade+0x740/0x740 [ 469.616754] ? trace_hardirqs_on+0x10/0x10 [ 469.620970] ? debug_object_assert_init+0x22d/0x2d0 [ 469.625959] ? debug_object_active_state+0x330/0x330 [ 469.631037] ? ret_from_fork+0x24/0x30 [ 469.634902] ? add_lock_to_list.constprop.0+0x17d/0x330 [ 469.640250] ? save_trace+0xd6/0x290 [ 469.643952] lock_acquire+0x170/0x3f0 [ 469.647779] ? lock_sock_nested+0x39/0x100 [ 469.651992] _raw_spin_lock_bh+0x2f/0x40 [ 469.656071] ? lock_sock_nested+0x39/0x100 [ 469.660334] lock_sock_nested+0x39/0x100 [ 469.664464] l2cap_sock_teardown_cb+0x93/0x650 [ 469.669030] l2cap_chan_del+0xaf/0x950 [ 469.672898] l2cap_chan_close+0x103/0x870 [ 469.677025] ? __set_monitor_timer+0x1d0/0x1d0 [ 469.681595] ? lock_acquire+0x170/0x3f0 [ 469.685552] l2cap_chan_timeout+0x143/0x2a0 [ 469.689881] process_one_work+0x793/0x14a0 [ 469.694093] ? work_busy+0x320/0x320 [ 469.697781] ? worker_thread+0x158/0xff0 [ 469.701822] ? _raw_spin_unlock_irq+0x24/0x80 [ 469.706302] worker_thread+0x5cc/0xff0 [ 469.710170] ? rescuer_thread+0xc80/0xc80 [ 469.714309] kthread+0x30d/0x420 [ 469.717651] ? kthread_create_on_node+0xd0/0xd0 [ 469.722303] ret_from_fork+0x24/0x30 [ 469.725990] [ 469.727598] Allocated by task 8354: [ 469.731244] kasan_kmalloc+0xeb/0x160 [ 469.735034] __kmalloc+0x15a/0x400 [ 469.738651] sk_prot_alloc+0x1ba/0x290 [ 469.742512] sk_alloc+0x36/0xcd0 [ 469.745854] l2cap_sock_alloc.constprop.0+0x31/0x210 [ 469.750944] l2cap_sock_create+0xf0/0x1a0 [ 469.755067] bt_sock_create+0x13b/0x280 [ 469.759037] __sock_create+0x303/0x620 [ 469.762908] SyS_socket+0xd1/0x1b0 [ 469.766422] do_syscall_64+0x1d5/0x640 [ 469.770312] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 469.775472] [ 469.777073] Freed by task 8354: [ 469.780327] kasan_slab_free+0xc3/0x1a0 [ 469.784277] kfree+0xc9/0x250 [ 469.787365] __sk_destruct+0x5e3/0x760 [ 469.791224] __sk_free+0xd9/0x2d0 [ 469.794649] sk_free+0x2b/0x40 [ 469.797818] l2cap_sock_kill.part.0+0x106/0x130 [ 469.802472] l2cap_sock_release+0x1cd/0x280 [ 469.806772] __sock_release+0xcd/0x2b0 [ 469.810631] sock_close+0x15/0x20 [ 469.814064] __fput+0x25f/0x7a0 [ 469.817320] task_work_run+0x11f/0x190 [ 469.821183] get_signal+0x18a3/0x1ca0 [ 469.824958] do_signal+0x7c/0x1550 [ 469.828476] exit_to_usermode_loop+0x160/0x200 [ 469.833034] do_syscall_64+0x4a3/0x640 [ 469.836910] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 469.842070] [ 469.843675] The buggy address belongs to the object at ffff88809374c100 [ 469.843675] which belongs to the cache kmalloc-2048 of size 2048 [ 469.856481] The buggy address is located 160 bytes inside of [ 469.856481] 2048-byte region [ffff88809374c100, ffff88809374c900) [ 469.868427] The buggy address belongs to the page: [ 469.873351] page:ffffea00024dd300 count:1 mapcount:0 mapping:ffff88809374c100 index:0x0 compound_mapcount: 0 [ 469.883303] flags: 0xfff00000008100(slab|head) [ 469.887861] raw: 00fff00000008100 ffff88809374c100 0000000000000000 0000000100000003 [ 469.895719] raw: ffffea0002aa9fa0 ffffea0002a88a20 ffff88813fe80c40 0000000000000000 [ 469.903574] page dumped because: kasan: bad access detected [ 469.909262] [ 469.910883] Memory state around the buggy address: [ 469.915797] ffff88809374c080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 469.923127] ffff88809374c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 469.930458] >ffff88809374c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 469.937788] ^ [ 469.942183] ffff88809374c200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 469.949521] ffff88809374c280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 469.958328] ================================================================== [ 469.965666] Disabling lock debugging due to kernel taint [ 469.971092] Kernel panic - not syncing: panic_on_warn set ... [ 469.971092] [ 469.979132] CPU: 0 PID: 8195 Comm: kworker/0:0 Tainted: G B 4.14.217-syzkaller #0 [ 469.987851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 469.997191] Workqueue: events l2cap_chan_timeout [ 470.001923] Call Trace: [ 470.004493] dump_stack+0x1b2/0x281 [ 470.008096] panic+0x1f9/0x42d [ 470.011297] ? add_taint.cold+0x16/0x16 [ 470.015257] ? lock_downgrade+0x740/0x740 [ 470.019380] kasan_end_report+0x43/0x49 [ 470.023327] kasan_report_error.cold+0xa7/0x191 [ 470.027971] ? __lock_acquire+0x2c57/0x3f20 [ 470.032375] __asan_report_load8_noabort+0x68/0x70 [ 470.037281] ? __lock_acquire+0x2c57/0x3f20 [ 470.041577] __lock_acquire+0x2c57/0x3f20 [ 470.045699] ? lock_acquire+0x170/0x3f0 [ 470.049676] ? lock_downgrade+0x740/0x740 [ 470.053812] ? trace_hardirqs_on+0x10/0x10 [ 470.058023] ? debug_object_assert_init+0x22d/0x2d0 [ 470.063016] ? debug_object_active_state+0x330/0x330 [ 470.068095] ? ret_from_fork+0x24/0x30 [ 470.071960] ? add_lock_to_list.constprop.0+0x17d/0x330 [ 470.077311] ? save_trace+0xd6/0x290 [ 470.081014] lock_acquire+0x170/0x3f0 [ 470.084791] ? lock_sock_nested+0x39/0x100 [ 470.088999] _raw_spin_lock_bh+0x2f/0x40 [ 470.093033] ? lock_sock_nested+0x39/0x100 [ 470.097240] lock_sock_nested+0x39/0x100 [ 470.101281] l2cap_sock_teardown_cb+0x93/0x650 [ 470.105838] l2cap_chan_del+0xaf/0x950 [ 470.109713] l2cap_chan_close+0x103/0x870 [ 470.113846] ? __set_monitor_timer+0x1d0/0x1d0 [ 470.118414] ? lock_acquire+0x170/0x3f0 [ 470.122374] l2cap_chan_timeout+0x143/0x2a0 [ 470.126670] process_one_work+0x793/0x14a0 [ 470.130881] ? work_busy+0x320/0x320 [ 470.134570] ? worker_thread+0x158/0xff0 [ 470.138613] ? _raw_spin_unlock_irq+0x24/0x80 [ 470.143081] worker_thread+0x5cc/0xff0 [ 470.146948] ? rescuer_thread+0xc80/0xc80 [ 470.151076] kthread+0x30d/0x420 [ 470.154426] ? kthread_create_on_node+0xd0/0xd0 [ 470.159068] ret_from_fork+0x24/0x30 [ 470.163262] Kernel Offset: disabled [ 470.166870] Rebooting in 86400 seconds..