Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.187' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 72.463644][ T8647] ------------[ cut here ]------------ [ 72.470969][ T8647] ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 [ 72.481842][ T8647] WARNING: CPU: 0 PID: 8647 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 [ 72.492145][ T8647] Modules linked in: [ 72.497051][ T8647] CPU: 0 PID: 8647 Comm: syz-executor983 Not tainted 5.14.0-rc7-syzkaller #0 [ 72.506935][ T8647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.518275][ T8647] RIP: 0010:debug_print_object+0x16e/0x250 [ 72.524163][ T8647] Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 20 e1 e3 89 4c 89 ee 48 c7 c7 20 d5 e3 89 e8 cb b1 12 05 <0f> 0b 83 05 f5 3e 92 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 [ 72.544821][ T8647] RSP: 0018:ffffc900017fefb0 EFLAGS: 00010286 [ 72.551597][ T8647] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 72.560176][ T8647] RDX: ffff88801c9f9c40 RSI: ffffffff815d87a5 RDI: fffff520002ffde8 [ 72.568909][ T8647] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 72.577509][ T8647] R10: ffffffff815d25de R11: 0000000000000000 R12: ffffffff898d33a0 [ 72.586218][ T8647] R13: ffffffff89e3dbe0 R14: 0000000000000000 R15: ffffffff898d33a0 [ 72.594202][ T8647] FS: 00007f3332934700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 72.605487][ T8647] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.612529][ T8647] CR2: 00007f7c091cd000 CR3: 0000000033b60000 CR4: 00000000001506f0 [ 72.621196][ T8647] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.630320][ T8647] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.639240][ T8647] Call Trace: [ 72.642691][ T8647] ? lockdep_hardirqs_on+0x79/0x100 [ 72.648686][ T8647] debug_object_activate+0x2da/0x3e0 [ 72.654228][ T8647] ? debug_object_assert_init+0x2e0/0x2e0 [ 72.660557][ T8647] ? debug_object_destroy+0x210/0x210 [ 72.666471][ T8647] ? delayed_work_timer_fn+0x90/0x90 [ 72.671932][ T8647] call_rcu+0x2c/0x750 [ 72.676559][ T8647] ? lockdep_init_map_type+0x2c3/0x7b0 [ 72.682181][ T8647] queue_rcu_work+0x82/0xa0 [ 72.687199][ T8647] route4_destroy+0x4b9/0x9a0 [ 72.692039][ T8647] ? route4_delete_filter_work+0xf0/0xf0 [ 72.698211][ T8647] ? __mutex_unlock_slowpath+0xe2/0x610 [ 72.704081][ T8647] ? __mutex_unlock_slowpath+0xe2/0x610 [ 72.710225][ T8647] tcf_proto_destroy+0x6a/0x2d0 [ 72.715184][ T8647] tcf_proto_put+0x8c/0xc0 [ 72.720089][ T8647] tcf_chain_flush+0x21a/0x360 [ 72.724954][ T8647] __tcf_block_put+0x15a/0x510 [ 72.730200][ T8647] ? tcf_block_owner_del+0x1d4/0x270 [ 72.736188][ T8647] tcf_block_put+0xde/0x130 [ 72.740799][ T8647] ? tcf_block_put_ext+0x80/0x80 [ 72.745981][ T8647] ? drr_destroy_qdisc+0x1d0/0x1d0 [ 72.751169][ T8647] ? drr_dump_class+0x480/0x480 [ 72.756992][ T8647] drr_destroy_qdisc+0x44/0x1d0 [ 72.761917][ T8647] ? drr_dump_class+0x480/0x480 [ 72.767921][ T8647] qdisc_destroy+0xc4/0x4e0 [ 72.772489][ T8647] qdisc_put+0xcd/0xe0 [ 72.777645][ T8647] qdisc_graft+0xc7c/0x1260 [ 72.782215][ T8647] ? tc_dump_tclass+0x480/0x480 [ 72.787875][ T8647] ? tc_get_qdisc+0xb50/0xb50 [ 72.792614][ T8647] ? __nla_parse+0x3d/0x50 [ 72.797927][ T8647] tc_modify_qdisc+0xba4/0x1a60 [ 72.802833][ T8647] ? qdisc_create+0x1320/0x1320 [ 72.808467][ T8647] ? rtnetlink_rcv_msg+0x3be/0xb80 [ 72.813648][ T8647] ? qdisc_create+0x1320/0x1320 [ 72.819576][ T8647] rtnetlink_rcv_msg+0x413/0xb80 [ 72.824580][ T8647] ? rtnl_newlink+0xa0/0xa0 [ 72.830035][ T8647] netlink_rcv_skb+0x153/0x420 [ 72.834859][ T8647] ? rtnl_newlink+0xa0/0xa0 [ 72.840230][ T8647] ? netlink_ack+0xa60/0xa60 [ 72.844914][ T8647] ? netlink_deliver_tap+0x1a2/0xc30 [ 72.851554][ T8647] ? netlink_deliver_tap+0x1b1/0xc30 [ 72.857819][ T8647] ? _copy_from_iter+0x12b/0x1320 [ 72.862896][ T8647] netlink_unicast+0x533/0x7d0 [ 72.868702][ T8647] ? netlink_attachskb+0x890/0x890 [ 72.873975][ T8647] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.881111][ T8647] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 72.888034][ T8647] ? __phys_addr_symbol+0x2c/0x70 [ 72.893280][ T8647] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 72.900710][ T8647] ? __check_object_size+0x16e/0x3f0 [ 72.906686][ T8647] netlink_sendmsg+0x86d/0xdb0 [ 72.911469][ T8647] ? netlink_unicast+0x7d0/0x7d0 [ 72.917256][ T8647] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 72.923504][ T8647] ? netlink_unicast+0x7d0/0x7d0 [ 72.929464][ T8647] sock_sendmsg+0xcf/0x120 [ 72.933884][ T8647] ____sys_sendmsg+0x6e8/0x810 [ 72.939632][ T8647] ? kernel_sendmsg+0x50/0x50 [ 72.944318][ T8647] ? do_recvmmsg+0x6d0/0x6d0 [ 72.949699][ T8647] ? lock_chain_count+0x20/0x20 [ 72.954566][ T8647] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 72.961522][ T8647] ___sys_sendmsg+0xf3/0x170 [ 72.966848][ T8647] ? sendmsg_copy_msghdr+0x160/0x160 [ 72.972142][ T8647] ? __fget_files+0x21b/0x3e0 [ 72.977952][ T8647] ? lock_downgrade+0x6e0/0x6e0 [ 72.982814][ T8647] ? __fget_files+0x23d/0x3e0 [ 72.988709][ T8647] ? __fget_light+0xea/0x280 [ 72.993307][ T8647] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.000441][ T8647] __sys_sendmsg+0xe5/0x1b0 [ 73.004943][ T8647] ? __sys_sendmsg_sock+0x30/0x30 [ 73.010764][ T8647] ? syscall_enter_from_user_mode+0x21/0x70 [ 73.017537][ T8647] do_syscall_64+0x35/0xb0 [ 73.021980][ T8647] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 73.028737][ T8647] RIP: 0033:0x445ef9 [ 73.032639][ T8647] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 73.053284][ T8647] RSP: 002b:00007f3332934308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.062290][ T8647] RAX: ffffffffffffffda RBX: 00000000004cb468 RCX: 0000000000445ef9 [ 73.070879][ T8647] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 [ 73.079400][ T8647] RBP: 00000000004cb460 R08: 0000000000000001 R09: 0000000000000000 [ 73.088222][ T8647] R10: 0000000000000008 R11: 0000000000000246 R12: 00000000004cb46c [ 73.097094][ T8647] R13: 000000000049b074 R14: 6d32cc5e8ead0600 R15: 0000000000022000 [ 73.105088][ T8647] Kernel panic - not syncing: panic_on_warn set ... [ 73.111655][ T8647] CPU: 0 PID: 8647 Comm: syz-executor983 Not tainted 5.14.0-rc7-syzkaller #0 [ 73.120395][ T8647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.130433][ T8647] Call Trace: [ 73.133698][ T8647] dump_stack_lvl+0xcd/0x134 [ 73.138280][ T8647] panic+0x306/0x73d [ 73.142162][ T8647] ? __warn_printk+0xf3/0xf3 [ 73.146747][ T8647] ? __warn.cold+0x1a/0x44 [ 73.151166][ T8647] ? debug_print_object+0x16e/0x250 [ 73.156362][ T8647] __warn.cold+0x35/0x44 [ 73.160589][ T8647] ? debug_print_object+0x16e/0x250 [ 73.165771][ T8647] report_bug+0x1bd/0x210 [ 73.170087][ T8647] handle_bug+0x3c/0x60 [ 73.174235][ T8647] exc_invalid_op+0x14/0x40 [ 73.178730][ T8647] asm_exc_invalid_op+0x12/0x20 [ 73.183586][ T8647] RIP: 0010:debug_print_object+0x16e/0x250 [ 73.189388][ T8647] Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 20 e1 e3 89 4c 89 ee 48 c7 c7 20 d5 e3 89 e8 cb b1 12 05 <0f> 0b 83 05 f5 3e 92 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 [ 73.208979][ T8647] RSP: 0018:ffffc900017fefb0 EFLAGS: 00010286 [ 73.215031][ T8647] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 73.222990][ T8647] RDX: ffff88801c9f9c40 RSI: ffffffff815d87a5 RDI: fffff520002ffde8 [ 73.230960][ T8647] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 73.238934][ T8647] R10: ffffffff815d25de R11: 0000000000000000 R12: ffffffff898d33a0 [ 73.246891][ T8647] R13: ffffffff89e3dbe0 R14: 0000000000000000 R15: ffffffff898d33a0 [ 73.254858][ T8647] ? wake_up_klogd.part.0+0x8e/0xd0 [ 73.260136][ T8647] ? vprintk+0x95/0x260 [ 73.264298][ T8647] ? lockdep_hardirqs_on+0x79/0x100 [ 73.269489][ T8647] debug_object_activate+0x2da/0x3e0 [ 73.274774][ T8647] ? debug_object_assert_init+0x2e0/0x2e0 [ 73.280492][ T8647] ? debug_object_destroy+0x210/0x210 [ 73.285960][ T8647] ? delayed_work_timer_fn+0x90/0x90 [ 73.291254][ T8647] call_rcu+0x2c/0x750 [ 73.295308][ T8647] ? lockdep_init_map_type+0x2c3/0x7b0 [ 73.300850][ T8647] queue_rcu_work+0x82/0xa0 [ 73.305432][ T8647] route4_destroy+0x4b9/0x9a0 [ 73.310121][ T8647] ? route4_delete_filter_work+0xf0/0xf0 [ 73.315758][ T8647] ? __mutex_unlock_slowpath+0xe2/0x610 [ 73.321291][ T8647] ? __mutex_unlock_slowpath+0xe2/0x610 [ 73.326828][ T8647] tcf_proto_destroy+0x6a/0x2d0 [ 73.331755][ T8647] tcf_proto_put+0x8c/0xc0 [ 73.336159][ T8647] tcf_chain_flush+0x21a/0x360 [ 73.340916][ T8647] __tcf_block_put+0x15a/0x510 [ 73.345665][ T8647] ? tcf_block_owner_del+0x1d4/0x270 [ 73.350952][ T8647] tcf_block_put+0xde/0x130 [ 73.355440][ T8647] ? tcf_block_put_ext+0x80/0x80 [ 73.360365][ T8647] ? drr_destroy_qdisc+0x1d0/0x1d0 [ 73.365462][ T8647] ? drr_dump_class+0x480/0x480 [ 73.370308][ T8647] drr_destroy_qdisc+0x44/0x1d0 [ 73.375148][ T8647] ? drr_dump_class+0x480/0x480 [ 73.379984][ T8647] qdisc_destroy+0xc4/0x4e0 [ 73.384489][ T8647] qdisc_put+0xcd/0xe0 [ 73.388562][ T8647] qdisc_graft+0xc7c/0x1260 [ 73.393065][ T8647] ? tc_dump_tclass+0x480/0x480 [ 73.397994][ T8647] ? tc_get_qdisc+0xb50/0xb50 [ 73.402659][ T8647] ? __nla_parse+0x3d/0x50 [ 73.407058][ T8647] tc_modify_qdisc+0xba4/0x1a60 [ 73.411905][ T8647] ? qdisc_create+0x1320/0x1320 [ 73.416925][ T8647] ? rtnetlink_rcv_msg+0x3be/0xb80 [ 73.422154][ T8647] ? qdisc_create+0x1320/0x1320 [ 73.426994][ T8647] rtnetlink_rcv_msg+0x413/0xb80 [ 73.431923][ T8647] ? rtnl_newlink+0xa0/0xa0 [ 73.436435][ T8647] netlink_rcv_skb+0x153/0x420 [ 73.441220][ T8647] ? rtnl_newlink+0xa0/0xa0 [ 73.445727][ T8647] ? netlink_ack+0xa60/0xa60 [ 73.450407][ T8647] ? netlink_deliver_tap+0x1a2/0xc30 [ 73.455684][ T8647] ? netlink_deliver_tap+0x1b1/0xc30 [ 73.460960][ T8647] ? _copy_from_iter+0x12b/0x1320 [ 73.465975][ T8647] netlink_unicast+0x533/0x7d0 [ 73.470746][ T8647] ? netlink_attachskb+0x890/0x890 [ 73.475878][ T8647] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.482201][ T8647] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.488450][ T8647] ? __phys_addr_symbol+0x2c/0x70 [ 73.493467][ T8647] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 73.499184][ T8647] ? __check_object_size+0x16e/0x3f0 [ 73.504459][ T8647] netlink_sendmsg+0x86d/0xdb0 [ 73.509211][ T8647] ? netlink_unicast+0x7d0/0x7d0 [ 73.514136][ T8647] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 73.520362][ T8647] ? netlink_unicast+0x7d0/0x7d0 [ 73.525286][ T8647] sock_sendmsg+0xcf/0x120 [ 73.529697][ T8647] ____sys_sendmsg+0x6e8/0x810 [ 73.534452][ T8647] ? kernel_sendmsg+0x50/0x50 [ 73.539116][ T8647] ? do_recvmmsg+0x6d0/0x6d0 [ 73.543696][ T8647] ? lock_chain_count+0x20/0x20 [ 73.548549][ T8647] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 73.554532][ T8647] ___sys_sendmsg+0xf3/0x170 [ 73.559115][ T8647] ? sendmsg_copy_msghdr+0x160/0x160 [ 73.564388][ T8647] ? __fget_files+0x21b/0x3e0 [ 73.569065][ T8647] ? lock_downgrade+0x6e0/0x6e0 [ 73.573915][ T8647] ? __fget_files+0x23d/0x3e0 [ 73.578583][ T8647] ? __fget_light+0xea/0x280 [ 73.583222][ T8647] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 73.589455][ T8647] __sys_sendmsg+0xe5/0x1b0 [ 73.593952][ T8647] ? __sys_sendmsg_sock+0x30/0x30 [ 73.598999][ T8647] ? syscall_enter_from_user_mode+0x21/0x70 [ 73.604907][ T8647] do_syscall_64+0x35/0xb0 [ 73.609314][ T8647] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 73.615203][ T8647] RIP: 0033:0x445ef9 [ 73.619138][ T8647] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 73.638742][ T8647] RSP: 002b:00007f3332934308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.647205][ T8647] RAX: ffffffffffffffda RBX: 00000000004cb468 RCX: 0000000000445ef9 [ 73.655169][ T8647] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 [ 73.663131][ T8647] RBP: 00000000004cb460 R08: 0000000000000001 R09: 0000000000000000 [ 73.671093][ T8647] R10: 0000000000000008 R11: 0000000000000246 R12: 00000000004cb46c [ 73.679057][ T8647] R13: 000000000049b074 R14: 6d32cc5e8ead0600 R15: 0000000000022000 [ 73.688514][ T8647] Kernel Offset: disabled [ 73.692921][ T8647] Rebooting in 86400 seconds..