Warning: Permanently added '10.128.10.50' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 69.466906][ T9450] IPVS: ftp: loaded support on port[0] = 21 [ 69.503035][ T9451] ------------[ cut here ]------------ [ 69.508626][ T9451] ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 [ 69.517938][ T9451] WARNING: CPU: 1 PID: 9451 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 69.527381][ T9451] Kernel panic - not syncing: panic_on_warn set ... [ 69.533948][ T9451] CPU: 1 PID: 9451 Comm: syz-executor723 Not tainted 5.6.0-rc3-next-20200228-syzkaller #0 [ 69.543809][ T9451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.553842][ T9451] Call Trace: [ 69.557122][ T9451] dump_stack+0x188/0x20d [ 69.561448][ T9451] ? debug_print_object+0xb0/0x250 [ 69.566547][ T9451] panic+0x2e3/0x75c [ 69.570441][ T9451] ? add_taint.cold+0x16/0x16 [ 69.575108][ T9451] ? __probe_kernel_read+0x188/0x1d0 [ 69.580374][ T9451] ? __warn.cold+0x14/0x35 [ 69.584772][ T9451] ? __warn+0xd5/0x1c8 [ 69.588835][ T9451] ? debug_print_object+0x160/0x250 [ 69.594011][ T9451] __warn.cold+0x2f/0x35 [ 69.598235][ T9451] ? debug_print_object+0x160/0x250 [ 69.603410][ T9451] report_bug+0x27b/0x2f0 [ 69.607725][ T9451] do_error_trap+0x12b/0x220 [ 69.612336][ T9451] ? debug_print_object+0x160/0x250 [ 69.617524][ T9451] do_invalid_op+0x32/0x40 [ 69.621920][ T9451] ? debug_print_object+0x160/0x250 [ 69.627095][ T9451] invalid_op+0x23/0x30 [ 69.631228][ T9451] RIP: 0010:debug_print_object+0x160/0x250 [ 69.637008][ T9451] Code: dd 00 25 72 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 00 25 72 88 48 c7 c7 60 1a 72 88 e8 48 06 b1 fd <0f> 0b 83 05 bb f8 f2 06 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 69.656598][ T9451] RSP: 0018:ffffc90002187168 EFLAGS: 00010286 [ 69.662642][ T9451] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 69.670591][ T9451] RDX: 0000000000000000 RSI: ffffffff815c4e91 RDI: fffff52000430e1f [ 69.678538][ T9451] RBP: 0000000000000001 R08: ffff8880975a6340 R09: ffffed1015ce6661 [ 69.686493][ T9451] R10: ffffed1015ce6660 R11: ffff8880ae733307 R12: ffffffff899adb60 [ 69.694579][ T9451] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000430e3a [ 69.702556][ T9451] ? vprintk_func+0x81/0x17e [ 69.707174][ T9451] ? debug_print_object+0x160/0x250 [ 69.712350][ T9451] ? lockdep_hardirqs_on+0x417/0x5d0 [ 69.717615][ T9451] debug_object_activate+0x346/0x470 [ 69.722878][ T9451] ? debug_object_init_on_stack+0x20/0x20 [ 69.728581][ T9451] ? route4_change+0xbb4/0x2250 [ 69.733409][ T9451] ? lock_downgrade+0x7f0/0x7f0 [ 69.738234][ T9451] ? delayed_work_timer_fn+0x90/0x90 [ 69.743498][ T9451] call_rcu+0x2c/0x7e0 [ 69.747549][ T9451] queue_rcu_work+0x82/0xa0 [ 69.752026][ T9451] route4_change+0xe8e/0x2250 [ 69.756706][ T9451] ? route4_destroy+0x820/0x820 [ 69.761543][ T9451] ? wait_for_completion+0x3c0/0x3c0 [ 69.766813][ T9451] tc_new_tfilter+0xa59/0x20b0 [ 69.771555][ T9451] ? route4_destroy+0x820/0x820 [ 69.776386][ T9451] ? is_bpf_image_address+0x1cb/0x280 [ 69.781734][ T9451] ? tc_del_tfilter+0x1430/0x1430 [ 69.786750][ T9451] ? apparmor_capable+0x49c/0x8a0 [ 69.791747][ T9451] ? mark_lock+0xbc/0x1220 [ 69.796151][ T9451] ? rcu_read_lock_held+0x9c/0xb0 [ 69.801161][ T9451] ? tc_del_tfilter+0x1430/0x1430 [ 69.806164][ T9451] rtnetlink_rcv_msg+0x810/0xad0 [ 69.811079][ T9451] ? rtnl_bridge_getlink+0x880/0x880 [ 69.816345][ T9451] ? mark_held_locks+0xe0/0xe0 [ 69.821086][ T9451] ? netlink_deliver_tap+0x146/0xb50 [ 69.826348][ T9451] netlink_rcv_skb+0x15a/0x410 [ 69.831097][ T9451] ? rtnl_bridge_getlink+0x880/0x880 [ 69.836364][ T9451] ? netlink_ack+0xa80/0xa80 [ 69.840960][ T9451] netlink_unicast+0x537/0x740 [ 69.845716][ T9451] ? netlink_attachskb+0x810/0x810 [ 69.850802][ T9451] ? _copy_from_iter_full+0x25c/0x870 [ 69.856162][ T9451] ? __phys_addr_symbol+0x2c/0x70 [ 69.861159][ T9451] ? __check_object_size+0x171/0x437 [ 69.866433][ T9451] netlink_sendmsg+0x882/0xe10 [ 69.871189][ T9451] ? aa_af_perm+0x260/0x260 [ 69.875669][ T9451] ? netlink_unicast+0x740/0x740 [ 69.880607][ T9451] ? netlink_unicast+0x740/0x740 [ 69.885524][ T9451] sock_sendmsg+0xcf/0x120 [ 69.889949][ T9451] ____sys_sendmsg+0x6b9/0x7d0 [ 69.894707][ T9451] ? kernel_sendmsg+0x50/0x50 [ 69.899380][ T9451] ___sys_sendmsg+0x100/0x170 [ 69.904036][ T9451] ? sendmsg_copy_msghdr+0x70/0x70 [ 69.909134][ T9451] ? __fget_files+0x329/0x4f0 [ 69.913795][ T9451] ? do_dup2+0x520/0x520 [ 69.918059][ T9451] ? __fget_light+0x208/0x270 [ 69.922722][ T9451] __sys_sendmsg+0xec/0x1b0 [ 69.927205][ T9451] ? __sys_sendmsg_sock+0xb0/0xb0 [ 69.932207][ T9451] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 69.938162][ T9451] ? __x64_sys_futex+0x380/0x4f0 [ 69.943084][ T9451] ? trace_hardirqs_off_caller+0x55/0x230 [ 69.948804][ T9451] ? do_syscall_64+0x21/0x790 [ 69.953459][ T9451] do_syscall_64+0xf6/0x790 [ 69.957944][ T9451] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 69.963811][ T9451] RIP: 0033:0x446ec9 [ 69.967687][ T9451] Code: e8 1c 15 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 69.987310][ T9451] RSP: 002b:00007f46f580bd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 69.995815][ T9451] RAX: ffffffffffffffda RBX: 00000000006dcc68 RCX: 0000000000446ec9 [ 70.003769][ T9451] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 70.011717][ T9451] RBP: 00000000006dcc60 R08: 0000000000000000 R09: 0000000000000000 [ 70.019662][ T9451] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc6c [ 70.027611][ T9451] R13: 0000000000000005 R14: 00a3a20740000000 R15: 0507002400000038 [ 70.036965][ T9451] Kernel Offset: disabled [ 70.041344][ T9451] Rebooting in 86400 seconds..