Warning: Permanently added '10.128.15.201' (ECDSA) to the list of known hosts. 2021/05/20 11:04:19 parsed 1 programs 2021/05/20 11:04:19 executed programs: 0 syzkaller login: [ 1580.154581] IPVS: ftp: loaded support on port[0] = 21 [ 1580.265934] chnl_net:caif_netlink_parms(): no params data found [ 1580.339410] bridge0: port 1(bridge_slave_0) entered blocking state [ 1580.346498] bridge0: port 1(bridge_slave_0) entered disabled state [ 1580.354594] device bridge_slave_0 entered promiscuous mode [ 1580.362144] bridge0: port 2(bridge_slave_1) entered blocking state [ 1580.368650] bridge0: port 2(bridge_slave_1) entered disabled state [ 1580.376116] device bridge_slave_1 entered promiscuous mode [ 1580.393282] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 1580.402053] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 1580.418966] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 1580.427807] team0: Port device team_slave_0 added [ 1580.433651] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 1580.441223] team0: Port device team_slave_1 added [ 1580.456905] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1580.463236] 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. [ 1580.488916] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1580.501065] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1580.507315] 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. [ 1580.532639] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1580.543465] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 1580.551118] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 1580.570737] device hsr_slave_0 entered promiscuous mode [ 1580.576667] device hsr_slave_1 entered promiscuous mode [ 1580.583303] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 1580.590583] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 1580.653254] bridge0: port 2(bridge_slave_1) entered blocking state [ 1580.659716] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1580.666499] bridge0: port 1(bridge_slave_0) entered blocking state [ 1580.672913] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1580.705614] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 1580.713804] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1580.722714] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 1580.732396] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1580.741413] bridge0: port 1(bridge_slave_0) entered disabled state [ 1580.748627] bridge0: port 2(bridge_slave_1) entered disabled state [ 1580.756108] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1580.766549] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 1580.773642] 8021q: adding VLAN 0 to HW filter on device team0 [ 1580.784422] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1580.792568] bridge0: port 1(bridge_slave_0) entered blocking state [ 1580.798899] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1580.819298] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 1580.829189] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1580.841860] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 1580.849019] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1580.856823] bridge0: port 2(bridge_slave_1) entered blocking state [ 1580.863220] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1580.871605] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1580.879207] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1580.887837] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1580.895578] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1580.903369] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1580.910365] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1580.922929] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 1580.931450] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1580.938134] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1580.949890] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1580.962957] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 1580.973262] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1581.006110] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 1581.013686] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 1581.020789] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 1581.029864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1581.037234] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1581.044256] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1581.052595] device veth0_vlan entered promiscuous mode [ 1581.061888] device veth1_vlan entered promiscuous mode [ 1581.067671] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 1581.076970] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 1581.087628] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 1581.097501] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1581.105919] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1581.113905] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1581.123806] device veth0_macvtap entered promiscuous mode [ 1581.130941] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 1581.138644] device veth1_macvtap entered promiscuous mode [ 1581.148502] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 1581.157794] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 1581.168212] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1581.175655] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1581.184504] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1581.194836] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1581.202620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1581.311129] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 1581.317932] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1581.336919] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1581.338163] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 1581.350476] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1581.363211] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1581.370874] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1581.377583] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1582.190718] Bluetooth: hci0: command 0x0409 tx timeout [ 1584.269529] Bluetooth: hci0: command 0x041b tx timeout 2021/05/20 11:04:25 executed programs: 4 [ 1586.349588] Bluetooth: hci0: command 0x040f tx timeout [ 1588.429083] Bluetooth: hci0: command 0x0419 tx timeout 2021/05/20 11:04:30 executed programs: 10 [ 1590.508960] Bluetooth: hci0: command 0x0405 tx timeout 2021/05/20 11:04:35 executed programs: 16 2021/05/20 11:04:40 executed programs: 22 2021/05/20 11:04:45 executed programs: 28 [ 1608.029520] ieee802154 phy0 wpan0: encryption failed: -22 [ 1608.035180] ieee802154 phy1 wpan1: encryption failed: -22 2021/05/20 11:04:50 executed programs: 34 2021/05/20 11:04:56 executed programs: 40 2021/05/20 11:05:01 executed programs: 46 [ 1625.307484] ================================================================== [ 1625.314980] BUG: KASAN: use-after-free in __lock_acquire+0x2cb4/0x3ff0 [ 1625.321627] Read of size 8 at addr ffff8880aad36560 by task kworker/0:1/8326 [ 1625.328783] [ 1625.330398] CPU: 0 PID: 8326 Comm: kworker/0:1 Not tainted 4.19.190-syzkaller #0 [ 1625.337904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1625.347241] Workqueue: events l2cap_chan_timeout [ 1625.351989] Call Trace: [ 1625.354553] dump_stack+0x1fc/0x2ef [ 1625.358158] print_address_description.cold+0x54/0x219 [ 1625.363409] kasan_report_error.cold+0x8a/0x1b9 [ 1625.368062] ? __lock_acquire+0x2cb4/0x3ff0 [ 1625.372366] __asan_report_load8_noabort+0x88/0x90 [ 1625.377331] ? __lock_acquire+0x2cb4/0x3ff0 [ 1625.381633] __lock_acquire+0x2cb4/0x3ff0 [ 1625.385759] ? trace_hardirqs_off+0x64/0x200 [ 1625.390184] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 1625.395286] ? debug_object_assert_init+0x242/0x2e0 [ 1625.400291] ? mark_held_locks+0xf0/0xf0 [ 1625.404326] ? debug_object_free+0x380/0x380 [ 1625.408713] ? mark_held_locks+0xf0/0xf0 [ 1625.412753] ? __save_stack_trace+0x9f/0x190 [ 1625.417144] ? del_timer+0xc3/0x100 [ 1625.420751] lock_acquire+0x170/0x3c0 [ 1625.424531] ? lock_sock_nested+0x3b/0x110 [ 1625.428747] _raw_spin_lock_bh+0x2f/0x40 [ 1625.432787] ? lock_sock_nested+0x3b/0x110 [ 1625.437006] lock_sock_nested+0x3b/0x110 [ 1625.441055] l2cap_sock_teardown_cb+0xa0/0x6d0 [ 1625.445658] ? lock_downgrade+0x720/0x720 [ 1625.449785] l2cap_chan_del+0xbc/0xa50 [ 1625.453658] ? trace_hardirqs_off+0x64/0x200 [ 1625.458042] l2cap_chan_close+0x1b5/0x950 [ 1625.462238] ? __set_monitor_timer+0x200/0x200 [ 1625.466795] ? check_preemption_disabled+0x41/0x280 [ 1625.471813] l2cap_chan_timeout+0x17e/0x2f0 [ 1625.476107] process_one_work+0x864/0x1570 [ 1625.480327] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 1625.484977] worker_thread+0x64c/0x1130 [ 1625.488937] ? process_one_work+0x1570/0x1570 [ 1625.493408] kthread+0x33f/0x460 [ 1625.496750] ? kthread_park+0x180/0x180 [ 1625.500709] ret_from_fork+0x24/0x30 [ 1625.504397] [ 1625.505997] Allocated by task 8395: [ 1625.509615] __kmalloc+0x15a/0x3c0 [ 1625.513127] sk_prot_alloc+0x1e2/0x2d0 [ 1625.516984] sk_alloc+0x36/0xec0 [ 1625.520322] l2cap_sock_alloc.constprop.0+0x31/0x210 [ 1625.525429] l2cap_sock_create+0x123/0x1f0 [ 1625.529642] bt_sock_create+0x154/0x2a0 [ 1625.533591] __sock_create+0x3d8/0x740 [ 1625.537450] __sys_socket+0xef/0x200 [ 1625.541138] __x64_sys_socket+0x6f/0xb0 [ 1625.545084] do_syscall_64+0xf9/0x620 [ 1625.548872] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1625.554031] [ 1625.555632] Freed by task 8394: [ 1625.558886] kfree+0xcc/0x210 [ 1625.561981] __sk_destruct+0x684/0x8a0 [ 1625.565842] __sk_free+0x165/0x3b0 [ 1625.569370] sk_free+0x3b/0x50 [ 1625.572549] l2cap_sock_kill.part.0+0x124/0x150 [ 1625.577191] l2cap_sock_release+0x1e6/0x290 [ 1625.581484] __sock_release+0xcd/0x2a0 [ 1625.585342] sock_close+0x15/0x20 [ 1625.588779] __fput+0x2ce/0x890 [ 1625.592030] task_work_run+0x148/0x1c0 [ 1625.595888] get_signal+0x1b64/0x1f70 [ 1625.599660] do_signal+0x8f/0x1670 [ 1625.603175] exit_to_usermode_loop+0x204/0x2a0 [ 1625.607741] do_syscall_64+0x538/0x620 [ 1625.611602] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1625.616768] [ 1625.618390] The buggy address belongs to the object at ffff8880aad364c0 [ 1625.618390] which belongs to the cache kmalloc-2048 of size 2048 [ 1625.631284] The buggy address is located 160 bytes inside of [ 1625.631284] 2048-byte region [ffff8880aad364c0, ffff8880aad36cc0) [ 1625.643214] The buggy address belongs to the page: [ 1625.648124] page:ffffea0002ab4d80 count:1 mapcount:0 mapping:ffff88813bff0c40 index:0x0 compound_mapcount: 0 [ 1625.658064] flags: 0xfff00000008100(slab|head) [ 1625.662625] raw: 00fff00000008100 ffffea0002acff88 ffffea00024b3408 ffff88813bff0c40 [ 1625.670486] raw: 0000000000000000 ffff8880aad364c0 0000000100000003 0000000000000000 [ 1625.678335] page dumped because: kasan: bad access detected [ 1625.684014] [ 1625.685634] Memory state around the buggy address: [ 1625.690546] ffff8880aad36400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 1625.697878] ffff8880aad36480: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 1625.705232] >ffff8880aad36500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1625.712566] ^ [ 1625.719032] ffff8880aad36580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1625.726364] ffff8880aad36600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1625.733780] ================================================================== [ 1625.741110] Disabling lock debugging due to kernel taint [ 1625.746537] Kernel panic - not syncing: panic_on_warn set ... [ 1625.746537] [ 1625.753881] CPU: 0 PID: 8326 Comm: kworker/0:1 Tainted: G B 4.19.190-syzkaller #0 [ 1625.762775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1625.772111] Workqueue: events l2cap_chan_timeout [ 1625.776837] Call Trace: [ 1625.779418] dump_stack+0x1fc/0x2ef [ 1625.783040] panic+0x26a/0x50e [ 1625.786210] ? __warn_printk+0xf3/0xf3 [ 1625.790073] ? lock_downgrade+0x720/0x720 [ 1625.794209] ? print_shadow_for_address+0xb8/0x114 [ 1625.799113] ? trace_hardirqs_off+0x64/0x200 [ 1625.803496] kasan_end_report+0x43/0x49 [ 1625.807445] kasan_report_error.cold+0xa7/0x1b9 [ 1625.812176] ? __lock_acquire+0x2cb4/0x3ff0 [ 1625.816470] __asan_report_load8_noabort+0x88/0x90 [ 1625.821375] ? __lock_acquire+0x2cb4/0x3ff0 [ 1625.825672] __lock_acquire+0x2cb4/0x3ff0 [ 1625.829794] ? trace_hardirqs_off+0x64/0x200 [ 1625.834190] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 1625.839273] ? debug_object_assert_init+0x242/0x2e0 [ 1625.844261] ? mark_held_locks+0xf0/0xf0 [ 1625.848298] ? debug_object_free+0x380/0x380 [ 1625.852700] ? mark_held_locks+0xf0/0xf0 [ 1625.856767] ? __save_stack_trace+0x9f/0x190 [ 1625.861148] ? del_timer+0xc3/0x100 [ 1625.864756] lock_acquire+0x170/0x3c0 [ 1625.868531] ? lock_sock_nested+0x3b/0x110 [ 1625.872752] _raw_spin_lock_bh+0x2f/0x40 [ 1625.876788] ? lock_sock_nested+0x3b/0x110 [ 1625.880997] lock_sock_nested+0x3b/0x110 [ 1625.885040] l2cap_sock_teardown_cb+0xa0/0x6d0 [ 1625.889611] ? lock_downgrade+0x720/0x720 [ 1625.893736] l2cap_chan_del+0xbc/0xa50 [ 1625.897601] ? trace_hardirqs_off+0x64/0x200 [ 1625.901988] l2cap_chan_close+0x1b5/0x950 [ 1625.906109] ? __set_monitor_timer+0x200/0x200 [ 1625.910669] ? check_preemption_disabled+0x41/0x280 [ 1625.915658] l2cap_chan_timeout+0x17e/0x2f0 [ 1625.919954] process_one_work+0x864/0x1570 [ 1625.924165] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 1625.928812] worker_thread+0x64c/0x1130 [ 1625.932763] ? process_one_work+0x1570/0x1570 [ 1625.937254] kthread+0x33f/0x460 [ 1625.940595] ? kthread_park+0x180/0x180 [ 1625.944556] ret_from_fork+0x24/0x30 [ 1625.949051] Kernel Offset: disabled [ 1625.952663] Rebooting in 86400 seconds..