Warning: Permanently added '10.128.0.245' (ECDSA) to the list of known hosts. 2021/02/17 05:32:13 parsed 1 programs 2021/02/17 05:32:14 executed programs: 0 syzkaller login: [ 1584.709887] IPVS: ftp: loaded support on port[0] = 21 [ 1584.812798] chnl_net:caif_netlink_parms(): no params data found [ 1584.923793] bridge0: port 1(bridge_slave_0) entered blocking state [ 1584.930423] bridge0: port 1(bridge_slave_0) entered disabled state [ 1584.938314] device bridge_slave_0 entered promiscuous mode [ 1584.945862] bridge0: port 2(bridge_slave_1) entered blocking state [ 1584.952252] bridge0: port 2(bridge_slave_1) entered disabled state [ 1584.960086] device bridge_slave_1 entered promiscuous mode [ 1584.978242] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1584.987106] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1585.005849] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1585.013380] team0: Port device team_slave_0 added [ 1585.019569] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1585.027530] team0: Port device team_slave_1 added [ 1585.042833] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1585.049267] 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. [ 1585.078749] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1585.090635] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1585.097360] 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. [ 1585.123147] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1585.134278] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1585.141691] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1585.161225] device hsr_slave_0 entered promiscuous mode [ 1585.167022] device hsr_slave_1 entered promiscuous mode [ 1585.173038] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1585.180339] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1585.244774] bridge0: port 2(bridge_slave_1) entered blocking state [ 1585.251192] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1585.258191] bridge0: port 1(bridge_slave_0) entered blocking state [ 1585.264610] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1585.296280] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 1585.302467] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1585.311186] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1585.320350] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1585.329807] bridge0: port 1(bridge_slave_0) entered disabled state [ 1585.337735] bridge0: port 2(bridge_slave_1) entered disabled state [ 1585.345422] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1585.355898] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1585.361972] 8021q: adding VLAN 0 to HW filter on device team0 [ 1585.372211] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1585.380523] bridge0: port 1(bridge_slave_0) entered blocking state [ 1585.387004] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1585.397157] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1585.405503] bridge0: port 2(bridge_slave_1) entered blocking state [ 1585.411836] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1585.431296] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 1585.441449] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1585.453179] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1585.460757] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1585.468832] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1585.477171] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1585.485062] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1585.492684] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1585.499662] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1585.512501] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1585.520382] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1585.527538] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1585.537429] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1585.550860] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 1585.560761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1585.592523] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 1585.600386] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 1585.607549] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 1585.617921] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1585.625639] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1585.634771] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1585.643935] device veth0_vlan entered promiscuous mode [ 1585.652405] device veth1_vlan entered promiscuous mode [ 1585.659057] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 1585.668178] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 1585.679361] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 1585.688945] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1585.697837] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1585.705747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1585.716186] device veth0_macvtap entered promiscuous mode [ 1585.722283] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 1585.731266] device veth1_macvtap entered promiscuous mode [ 1585.740153] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 1585.749813] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 1585.760444] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1585.767729] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1585.776519] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1585.787782] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1585.794881] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1585.904598] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 1585.911434] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1585.925985] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1585.936886] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1585.945436] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 1585.951979] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1585.959738] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1585.966888] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1586.744847] Bluetooth: hci0: command 0x0409 tx timeout [ 1587.839572] ================================================================== [ 1587.846977] BUG: KASAN: use-after-free in __lock_acquire+0x2cb4/0x3ff0 [ 1587.853742] Read of size 8 at addr ffff88809d9ceba0 by task syz-executor.0/8106 [ 1587.861213] [ 1587.862824] CPU: 0 PID: 8106 Comm: syz-executor.0 Not tainted 4.19.172-syzkaller #0 [ 1587.870598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1587.879933] Call Trace: [ 1587.882512] dump_stack+0x1fc/0x2ef [ 1587.886139] print_address_description.cold+0x54/0x219 [ 1587.891394] kasan_report_error.cold+0x8a/0x1b9 [ 1587.896043] ? __lock_acquire+0x2cb4/0x3ff0 [ 1587.900345] __asan_report_load8_noabort+0x88/0x90 [ 1587.905256] ? __lock_acquire+0x2cb4/0x3ff0 [ 1587.909554] __lock_acquire+0x2cb4/0x3ff0 [ 1587.913695] ? trace_hardirqs_off+0x64/0x200 [ 1587.918091] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 1587.923173] ? debug_object_assert_init+0x242/0x2e0 [ 1587.928343] ? mark_held_locks+0xf0/0xf0 [ 1587.932382] ? debug_object_free+0x380/0x380 [ 1587.936789] ? kfree+0xcc/0x210 [ 1587.940048] ? kfree_const+0x51/0x60 [ 1587.943748] ? kobject_put+0x2b5/0x5d0 [ 1587.947657] ? put_device+0x1c/0x30 [ 1587.951283] ? lock_acquire+0x170/0x3c0 [ 1587.955252] ? l2cap_conn_del+0x39b/0x6e0 [ 1587.959380] ? del_timer+0xc3/0x100 [ 1587.963004] lock_acquire+0x170/0x3c0 [ 1587.966785] ? lock_sock_nested+0x3b/0x110 [ 1587.970998] _raw_spin_lock_bh+0x2f/0x40 [ 1587.975038] ? lock_sock_nested+0x3b/0x110 [ 1587.979860] lock_sock_nested+0x3b/0x110 [ 1587.983903] l2cap_sock_teardown_cb+0xa0/0x6d0 [ 1587.988463] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 1587.993025] l2cap_chan_del+0xbc/0xa50 [ 1587.996890] l2cap_conn_del+0x3a6/0x6e0 [ 1588.000844] ? l2cap_conn_del+0x6e0/0x6e0 [ 1588.004968] l2cap_disconn_cfm+0x98/0xd0 [ 1588.009026] hci_conn_hash_flush+0x127/0x260 [ 1588.013423] hci_dev_do_close+0x659/0xf10 [ 1588.017583] ? hci_dev_open+0x250/0x250 [ 1588.021534] ? hci_unregister_dev+0x71/0x910 [ 1588.025927] hci_unregister_dev+0x18b/0x910 [ 1588.030226] ? vhci_close_dev+0x50/0x50 [ 1588.034179] vhci_release+0x70/0xe0 [ 1588.037786] __fput+0x2ce/0x890 [ 1588.041046] task_work_run+0x148/0x1c0 [ 1588.044912] do_exit+0xbf3/0x2be0 [ 1588.048346] ? lock_downgrade+0x720/0x720 [ 1588.052471] ? mm_update_next_owner+0x650/0x650 [ 1588.057117] ? up_read+0x17/0x110 [ 1588.060549] ? __do_page_fault+0x180/0xd60 [ 1588.064767] do_group_exit+0x125/0x310 [ 1588.068638] __x64_sys_exit_group+0x3a/0x50 [ 1588.072939] do_syscall_64+0xf9/0x620 [ 1588.076743] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1588.081912] RIP: 0033:0x465d99 [ 1588.085082] Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 83 ec 18 48 89 6c 24 10 48 8d 6c 24 10 48 8b 44 24 18 48 89 04 24 48 8d <44> 24 20 48 89 44 24 08 e8 5a 9b fd ff 48 8b 6c 24 10 48 83 c4 18 [ 1588.103961] RSP: 002b:00007ffe49a19308 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1588.111662] RAX: ffffffffffffffda RBX: 0000000000000188 RCX: 0000000000465d99 [ 1588.118926] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043 [ 1588.126176] RBP: 00000000004bcaed R08: 000000000000000b R09: 0000000000000004 [ 1588.133429] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 1588.140684] R13: 0000000000183aed R14: 0000000000000004 R15: 00007ffe49a194f0 [ 1588.147936] [ 1588.149542] Allocated by task 8862: [ 1588.153152] __kmalloc+0x15a/0x3c0 [ 1588.156680] sk_prot_alloc+0x1e2/0x2d0 [ 1588.160550] sk_alloc+0x36/0xec0 [ 1588.163896] l2cap_sock_alloc.constprop.0+0x31/0x210 [ 1588.168995] l2cap_sock_create+0x123/0x1f0 [ 1588.173222] bt_sock_create+0x154/0x2a0 [ 1588.177174] __sock_create+0x3d8/0x740 [ 1588.181037] __sys_socket+0xef/0x200 [ 1588.184759] __x64_sys_socket+0x6f/0xb0 [ 1588.188714] do_syscall_64+0xf9/0x620 [ 1588.192493] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1588.197656] [ 1588.199261] Freed by task 8861: [ 1588.202519] kfree+0xcc/0x210 [ 1588.205604] __sk_destruct+0x684/0x8a0 [ 1588.209473] __sk_free+0x165/0x3b0 [ 1588.212994] sk_free+0x3b/0x50 [ 1588.216165] l2cap_sock_kill.part.0+0x124/0x150 [ 1588.220810] l2cap_sock_release+0x1e6/0x290 [ 1588.225106] __sock_release+0xcd/0x2a0 [ 1588.228968] sock_close+0x15/0x20 [ 1588.232395] __fput+0x2ce/0x890 [ 1588.235653] task_work_run+0x148/0x1c0 [ 1588.239518] exit_to_usermode_loop+0x251/0x2a0 [ 1588.244074] do_syscall_64+0x538/0x620 [ 1588.247938] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1588.253106] [ 1588.254713] The buggy address belongs to the object at ffff88809d9ceb00 [ 1588.254713] which belongs to the cache kmalloc-2048 of size 2048 [ 1588.267529] The buggy address is located 160 bytes inside of [ 1588.267529] 2048-byte region [ffff88809d9ceb00, ffff88809d9cf300) [ 1588.279766] The buggy address belongs to the page: [ 1588.284673] page:ffffea0002767380 count:1 mapcount:0 mapping:ffff88813bff0c40 index:0x0 compound_mapcount: 0 [ 1588.294617] flags: 0xfff00000008100(slab|head) [ 1588.299176] raw: 00fff00000008100 ffffea000275a408 ffffea0002742f88 ffff88813bff0c40 [ 1588.307033] raw: 0000000000000000 ffff88809d9ce280 0000000100000003 0000000000000000 [ 1588.314898] page dumped because: kasan: bad access detected [ 1588.320579] [ 1588.322186] Memory state around the buggy address: [ 1588.327090] ffff88809d9cea80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 1588.334430] ffff88809d9ceb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1588.341765] >ffff88809d9ceb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1588.349104] ^ [ 1588.353493] ffff88809d9cec00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1588.360834] ffff88809d9cec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1588.368177] ================================================================== [ 1588.375525] Disabling lock debugging due to kernel taint [ 1588.380948] Kernel panic - not syncing: panic_on_warn set ... [ 1588.380948] [ 1588.388295] CPU: 0 PID: 8106 Comm: syz-executor.0 Tainted: G B 4.19.172-syzkaller #0 [ 1588.397464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1588.406793] Call Trace: [ 1588.409366] dump_stack+0x1fc/0x2ef [ 1588.412972] panic+0x26a/0x50e [ 1588.416143] ? __warn_printk+0xf3/0xf3 [ 1588.420007] ? lock_downgrade+0x720/0x720 [ 1588.424135] ? print_shadow_for_address+0xb8/0x114 [ 1588.429041] ? trace_hardirqs_off+0x64/0x200 [ 1588.433437] kasan_end_report+0x43/0x49 [ 1588.437395] kasan_report_error.cold+0xa7/0x1b9 [ 1588.442061] ? __lock_acquire+0x2cb4/0x3ff0 [ 1588.446361] __asan_report_load8_noabort+0x88/0x90 [ 1588.451268] ? __lock_acquire+0x2cb4/0x3ff0 [ 1588.455567] __lock_acquire+0x2cb4/0x3ff0 [ 1588.459699] ? trace_hardirqs_off+0x64/0x200 [ 1588.464087] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 1588.469174] ? debug_object_assert_init+0x242/0x2e0 [ 1588.474170] ? mark_held_locks+0xf0/0xf0 [ 1588.478207] ? debug_object_free+0x380/0x380 [ 1588.482610] ? kfree+0xcc/0x210 [ 1588.485869] ? kfree_const+0x51/0x60 [ 1588.489597] ? kobject_put+0x2b5/0x5d0 [ 1588.493467] ? put_device+0x1c/0x30 [ 1588.497079] ? lock_acquire+0x170/0x3c0 [ 1588.501042] ? l2cap_conn_del+0x39b/0x6e0 [ 1588.505179] ? del_timer+0xc3/0x100 [ 1588.508795] lock_acquire+0x170/0x3c0 [ 1588.512575] ? lock_sock_nested+0x3b/0x110 [ 1588.516802] _raw_spin_lock_bh+0x2f/0x40 [ 1588.520840] ? lock_sock_nested+0x3b/0x110 [ 1588.525051] lock_sock_nested+0x3b/0x110 [ 1588.529095] l2cap_sock_teardown_cb+0xa0/0x6d0 [ 1588.533663] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 1588.538223] l2cap_chan_del+0xbc/0xa50 [ 1588.542097] l2cap_conn_del+0x3a6/0x6e0 [ 1588.546065] ? l2cap_conn_del+0x6e0/0x6e0 [ 1588.550188] l2cap_disconn_cfm+0x98/0xd0 [ 1588.554240] hci_conn_hash_flush+0x127/0x260 [ 1588.558643] hci_dev_do_close+0x659/0xf10 [ 1588.562778] ? hci_dev_open+0x250/0x250 [ 1588.566743] ? hci_unregister_dev+0x71/0x910 [ 1588.571174] hci_unregister_dev+0x18b/0x910 [ 1588.575566] ? vhci_close_dev+0x50/0x50 [ 1588.579728] vhci_release+0x70/0xe0 [ 1588.583341] __fput+0x2ce/0x890 [ 1588.586603] task_work_run+0x148/0x1c0 [ 1588.590479] do_exit+0xbf3/0x2be0 [ 1588.593917] ? lock_downgrade+0x720/0x720 [ 1588.598044] ? mm_update_next_owner+0x650/0x650 [ 1588.602694] ? up_read+0x17/0x110 [ 1588.606128] ? __do_page_fault+0x180/0xd60 [ 1588.610342] do_group_exit+0x125/0x310 [ 1588.614228] __x64_sys_exit_group+0x3a/0x50 [ 1588.618527] do_syscall_64+0xf9/0x620 [ 1588.622415] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1588.627585] RIP: 0033:0x465d99 [ 1588.630760] Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 83 ec 18 48 89 6c 24 10 48 8d 6c 24 10 48 8b 44 24 18 48 89 04 24 48 8d <44> 24 20 48 89 44 24 08 e8 5a 9b fd ff 48 8b 6c 24 10 48 83 c4 18 [ 1588.649640] RSP: 002b:00007ffe49a19308 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1588.657341] RAX: ffffffffffffffda RBX: 0000000000000188 RCX: 0000000000465d99 [ 1588.664589] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043 [ 1588.671839] RBP: 00000000004bcaed R08: 000000000000000b R09: 0000000000000004 [ 1588.679087] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 1588.686334] R13: 0000000000183aed R14: 0000000000000004 R15: 00007ffe49a194f0 [ 1588.694289] Kernel Offset: disabled [ 1588.697949] Rebooting in 86400 seconds..