Warning: Permanently added '10.128.1.46' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 62.478450][ T8748] IPVS: ftp: loaded support on port[0] = 21 [ 62.507375][ T8749] ------------[ cut here ]------------ [ 62.515753][ T8749] ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 [ 62.526319][ T8749] WARNING: CPU: 1 PID: 8749 at lib/debugobjects.c:488 debug_object_activate+0x5a8/0x6f0 [ 62.536098][ T8749] Kernel panic - not syncing: panic_on_warn set ... [ 62.551737][ T8749] CPU: 1 PID: 8749 Comm: syz-executor429 Not tainted 5.6.0-rc3-syzkaller #0 [ 62.560394][ T8749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.570578][ T8749] Call Trace: [ 62.573953][ T8749] dump_stack+0x1fb/0x318 [ 62.578492][ T8749] panic+0x264/0x7a9 [ 62.582380][ T8749] ? __warn+0x105/0x210 [ 62.586536][ T8749] ? debug_object_activate+0x5a8/0x6f0 [ 62.591988][ T8749] __warn+0x209/0x210 [ 62.595958][ T8749] ? debug_object_activate+0x5a8/0x6f0 [ 62.601406][ T8749] report_bug+0x1b6/0x2f0 [ 62.605838][ T8749] ? debug_object_activate+0x5a8/0x6f0 [ 62.611353][ T8749] do_error_trap+0xcf/0x1c0 [ 62.615850][ T8749] do_invalid_op+0x36/0x40 [ 62.620260][ T8749] ? debug_object_activate+0x5a8/0x6f0 [ 62.625725][ T8749] invalid_op+0x23/0x30 [ 62.629864][ T8749] RIP: 0010:debug_object_activate+0x5a8/0x6f0 [ 62.636069][ T8749] Code: 74 08 4c 89 f7 e8 d8 43 0f fe 4d 8b 06 48 c7 c7 13 ec f0 88 48 c7 c6 04 4f 06 89 4c 89 ea 89 d9 4d 89 e1 31 c0 e8 08 e0 a3 fd <0f> 0b 48 ba 00 00 00 00 00 fc ff df ff 05 da eb c4 05 48 8b 5d b8 [ 62.655894][ T8749] RSP: 0018:ffffc90001f573a8 EFLAGS: 00010246 [ 62.661949][ T8749] RAX: 04afad6d4077c400 RBX: 0000000000000001 RCX: ffff88808eb3a000 [ 62.670774][ T8749] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 62.679633][ T8749] RBP: ffffc90001f573f0 R08: ffffffff81601324 R09: fffffbfff1406518 [ 62.687599][ T8749] R10: fffffbfff1406518 R11: 0000000000000000 R12: 0000000000000000 [ 62.695558][ T8749] R13: ffffffff88f4c97a R14: ffffffff892d99a8 R15: ffff88809a21ac98 [ 62.703664][ T8749] ? vprintk_emit+0x2d4/0x3a0 [ 62.708378][ T8749] ? debug_object_activate+0x5a8/0x6f0 [ 62.713824][ T8749] ? queue_rcu_work+0x90/0x90 [ 62.718490][ T8749] call_rcu+0x3a/0x660 [ 62.722552][ T8749] queue_rcu_work+0x79/0x90 [ 62.727086][ T8749] ? route4_dump+0x6d0/0x6d0 [ 62.731677][ T8749] tcf_queue_work+0xc9/0xe0 [ 62.736166][ T8749] route4_change+0x18e8/0x1d90 [ 62.740957][ T8749] tc_new_tfilter+0x1490/0x2f50 [ 62.745844][ T8749] ? route4_get+0x390/0x390 [ 62.750495][ T8749] ? tcf_tunnel_encap_put_tunnel+0x20/0x20 [ 62.756297][ T8749] rtnetlink_rcv_msg+0x8fb/0xd40 [ 62.761537][ T8749] ? rcu_lock_release+0x9/0x30 [ 62.766298][ T8749] netlink_rcv_skb+0x19e/0x3e0 [ 62.771047][ T8749] ? rtnetlink_bind+0x80/0x80 [ 62.775779][ T8749] rtnetlink_rcv+0x1c/0x20 [ 62.780181][ T8749] netlink_unicast+0x766/0x920 [ 62.784940][ T8749] netlink_sendmsg+0xa2b/0xd40 [ 62.789806][ T8749] ? netlink_getsockopt+0x9f0/0x9f0 [ 62.794990][ T8749] ____sys_sendmsg+0x4f7/0x7f0 [ 62.799800][ T8749] __sys_sendmsg+0x1ed/0x290 [ 62.804385][ T8749] ? rcu_read_lock_sched_held+0x10b/0x170 [ 62.810086][ T8749] ? __kasan_check_write+0x14/0x20 [ 62.815179][ T8749] ? __fpregs_load_activate+0x194/0x220 [ 62.820959][ T8749] ? switch_fpu_return+0xe/0x10 [ 62.825808][ T8749] ? prepare_exit_to_usermode+0x221/0x5b0 [ 62.831726][ T8749] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 62.839192][ T8749] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 62.845579][ T8749] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 62.851414][ T8749] ? do_syscall_64+0x1d/0x1c0 [ 62.856152][ T8749] __x64_sys_sendmsg+0x7f/0x90 [ 62.861127][ T8749] do_syscall_64+0xf7/0x1c0 [ 62.865770][ T8749] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.871733][ T8749] RIP: 0033:0x447d09 [ 62.875613][ T8749] Code: e8 0c bb 02 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 ab 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 62.895203][ T8749] RSP: 002b:00007f99d30dace8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 62.903601][ T8749] RAX: ffffffffffffffda RBX: 00000000006ddc68 RCX: 0000000000447d09 [ 62.911661][ T8749] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 62.919975][ T8749] RBP: 00000000006ddc60 R08: 0000000000000000 R09: 0000000000000000 [ 62.929199][ T8749] R10: 0000000000000010 R11: 0000000000000246 R12: 00000000006ddc6c [ 62.938077][ T8749] R13: 00007fffe3df78bf R14: 00007f99d30db9c0 R15: 000000000000002d [ 62.947694][ T8749] Kernel Offset: disabled [ 62.952089][ T8749] Rebooting in 86400 seconds..