[ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started System Logging Service. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Started OpenBSD Secure Shell server. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.212' (ECDSA) to the list of known hosts. syzkaller login: [ 66.732273][ T8441] chnl_net:caif_netlink_parms(): no params data found [ 66.799728][ T8441] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.807455][ T8441] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.816874][ T8441] device bridge_slave_0 entered promiscuous mode [ 66.826963][ T8441] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.834152][ T8441] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.841925][ T8441] device bridge_slave_1 entered promiscuous mode [ 66.869037][ T8441] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.880419][ T8441] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.910969][ T8441] team0: Port device team_slave_0 added [ 66.918976][ T8441] team0: Port device team_slave_1 added [ 66.943979][ T8441] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.950964][ T8441] 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. [ 66.978129][ T8441] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.991404][ T8441] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.998986][ T8441] 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. [ 67.025423][ T8441] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.060894][ T8441] device hsr_slave_0 entered promiscuous mode [ 67.067745][ T8441] device hsr_slave_1 entered promiscuous mode [ 67.181501][ T8441] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.192461][ T8441] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.202337][ T8441] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.212012][ T8441] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.235565][ T8441] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.242812][ T8441] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.250796][ T8441] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.257931][ T8441] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.300653][ T8441] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.316705][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.328231][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.338063][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.346768][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.359361][ T8441] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.371272][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.380722][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.387974][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.407332][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.416203][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.423296][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.444790][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.453654][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.461939][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.470460][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.479425][ T8441] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.488461][ T8761] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.510310][ T8441] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.519109][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.527619][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.546572][ T8761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.564948][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.575176][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.582719][ T26] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.595730][ T8441] device veth0_vlan entered promiscuous mode [ 67.607536][ T8441] device veth1_vlan entered promiscuous mode [ 67.627877][ T8761] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.636597][ T8761] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.645529][ T8761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.656345][ T8441] device veth0_macvtap entered promiscuous mode [ 67.667627][ T8441] device veth1_macvtap entered promiscuous mode [ 67.684158][ T8441] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.691537][ T8761] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.704024][ T8761] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.716201][ T8441] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.725105][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 67.737601][ T8441] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.747040][ T8441] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.756604][ T8441] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.767107][ T8441] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.806590][ T8441] ------------[ cut here ]------------ [ 67.812050][ T8441] ODEBUG: free active (active state 0) object type: hrtimer hint: advance_sched+0x0/0x9a0 [ 67.822670][ T8441] WARNING: CPU: 0 PID: 8441 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 [ 67.834178][ T8441] Modules linked in: [ 67.838088][ T8441] CPU: 0 PID: 8441 Comm: syz-executor813 Not tainted 5.14.0-rc6-syzkaller #0 [ 67.847252][ T8441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.857614][ T8441] RIP: 0010:debug_print_object+0x16e/0x250 [ 67.864229][ T8441] Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd e0 d3 e3 89 4c 89 ee 48 c7 c7 e0 c7 e3 89 e8 5b 86 11 05 <0f> 0b 83 05 85 03 92 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 [ 67.885046][ T8441] RSP: 0018:ffffc9000130f330 EFLAGS: 00010282 [ 67.891118][ T8441] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 67.899158][ T8441] RDX: ffff88802baeb880 RSI: ffffffff815d87b5 RDI: fffff52000261e58 [ 67.907542][ T8441] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 67.915673][ T8441] R10: ffffffff815d25ee R11: 0000000000000000 R12: ffffffff898dd020 [ 67.924012][ T8441] R13: ffffffff89e3ce20 R14: ffffffff81653630 R15: dffffc0000000000 [ 67.931995][ T8441] FS: 0000000000f0d300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 67.942602][ T8441] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.949372][ T8441] CR2: 00007ffb64b3e000 CR3: 0000000036557000 CR4: 00000000001506e0 [ 67.957637][ T8441] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.966247][ T8441] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.975230][ T8441] Call Trace: [ 67.978527][ T8441] ? lockdep_hardirqs_on+0x79/0x100 [ 67.983908][ T8441] debug_check_no_obj_freed+0x301/0x420 [ 67.989478][ T8441] ? slab_free_freelist_hook+0x13f/0x240 [ 67.995980][ T8441] slab_free_freelist_hook+0x171/0x240 [ 68.001568][ T8441] kfree+0xe4/0x540 [ 68.005567][ T8441] ? qdisc_create+0xbcf/0x1320 [ 68.010409][ T8441] ? taprio_destroy+0x3ce/0x4d0 [ 68.016045][ T8441] qdisc_create+0xbcf/0x1320 [ 68.020683][ T8441] ? tc_get_qdisc+0xb50/0xb50 [ 68.025849][ T8441] ? __nla_parse+0x3d/0x50 [ 68.030287][ T8441] tc_modify_qdisc+0x4c8/0x1a60 [ 68.035296][ T8441] ? qdisc_create+0x1320/0x1320 [ 68.040163][ T8441] ? rtnetlink_rcv_msg+0x3be/0xb80 [ 68.045704][ T8441] ? qdisc_create+0x1320/0x1320 [ 68.050581][ T8441] rtnetlink_rcv_msg+0x413/0xb80 [ 68.055960][ T8441] ? rtnl_newlink+0xa0/0xa0 [ 68.060484][ T8441] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 68.065950][ T8441] netlink_rcv_skb+0x153/0x420 [ 68.070742][ T8441] ? rtnl_newlink+0xa0/0xa0 [ 68.075481][ T8441] ? netlink_ack+0xa60/0xa60 [ 68.080081][ T8441] ? netlink_deliver_tap+0x1a2/0xc30 [ 68.086902][ T8441] ? netlink_deliver_tap+0x1b1/0xc30 [ 68.092232][ T8441] netlink_unicast+0x533/0x7d0 [ 68.097227][ T8441] ? netlink_attachskb+0x890/0x890 [ 68.102350][ T8441] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.109923][ T8441] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.116855][ T8441] ? __phys_addr_symbol+0x2c/0x70 [ 68.121893][ T8441] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 68.127685][ T8441] ? __check_object_size+0x16e/0x3f0 [ 68.133115][ T8441] netlink_sendmsg+0x86d/0xdb0 [ 68.137879][ T8441] ? netlink_unicast+0x7d0/0x7d0 [ 68.142831][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.149167][ T8441] ? netlink_unicast+0x7d0/0x7d0 [ 68.154750][ T8441] sock_sendmsg+0xcf/0x120 [ 68.159207][ T8441] ____sys_sendmsg+0x6e8/0x810 [ 68.164989][ T8441] ? kernel_sendmsg+0x50/0x50 [ 68.169677][ T8441] ? do_recvmmsg+0x6d0/0x6d0 [ 68.175099][ T8441] ? lock_chain_count+0x20/0x20 [ 68.179952][ T8441] ___sys_sendmsg+0xf3/0x170 [ 68.186057][ T8441] ? sendmsg_copy_msghdr+0x160/0x160 [ 68.191345][ T8441] ? __lock_acquire+0x162f/0x54a0 [ 68.197846][ T8441] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 68.204672][ T8441] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 68.210670][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.217088][ T8441] ? __fget_light+0x215/0x280 [ 68.221818][ T8441] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.228897][ T8441] __sys_sendmsg+0xe5/0x1b0 [ 68.233820][ T8441] ? __sys_sendmsg_sock+0x30/0x30 [ 68.238870][ T8441] ? syscall_enter_from_user_mode+0x21/0x70 [ 68.245182][ T8441] do_syscall_64+0x35/0xb0 [ 68.249613][ T8441] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 68.255607][ T8441] RIP: 0033:0x4439e9 [ 68.259508][ T8441] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 68.279185][ T8441] RSP: 002b:00007ffe1f28ce58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.287712][ T8441] RAX: ffffffffffffffda RBX: 00007ffe1f28ce68 RCX: 00000000004439e9 [ 68.295745][ T8441] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 68.303831][ T8441] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 68.311809][ T8441] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1f28ce70 [ 68.319850][ T8441] R13: 00007ffe1f28ce90 R14: 00000000004b9018 R15: 00000000004004b8 [ 68.327973][ T8441] Kernel panic - not syncing: panic_on_warn set ... [ 68.334561][ T8441] CPU: 1 PID: 8441 Comm: syz-executor813 Not tainted 5.14.0-rc6-syzkaller #0 [ 68.343321][ T8441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.353368][ T8441] Call Trace: [ 68.356647][ T8441] dump_stack_lvl+0xcd/0x134 [ 68.361241][ T8441] panic+0x306/0x73d [ 68.365139][ T8441] ? __warn_printk+0xf3/0xf3 [ 68.369737][ T8441] ? __warn.cold+0x1a/0x44 [ 68.374155][ T8441] ? debug_print_object+0x16e/0x250 [ 68.379355][ T8441] __warn.cold+0x35/0x44 [ 68.383602][ T8441] ? debug_print_object+0x16e/0x250 [ 68.388798][ T8441] report_bug+0x1bd/0x210 [ 68.393121][ T8441] handle_bug+0x3c/0x60 [ 68.397274][ T8441] exc_invalid_op+0x14/0x40 [ 68.401771][ T8441] asm_exc_invalid_op+0x12/0x20 [ 68.406625][ T8441] RIP: 0010:debug_print_object+0x16e/0x250 [ 68.412427][ T8441] Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd e0 d3 e3 89 4c 89 ee 48 c7 c7 e0 c7 e3 89 e8 5b 86 11 05 <0f> 0b 83 05 85 03 92 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 [ 68.432023][ T8441] RSP: 0018:ffffc9000130f330 EFLAGS: 00010282 [ 68.438081][ T8441] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 68.446044][ T8441] RDX: ffff88802baeb880 RSI: ffffffff815d87b5 RDI: fffff52000261e58 [ 68.454003][ T8441] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 68.462007][ T8441] R10: ffffffff815d25ee R11: 0000000000000000 R12: ffffffff898dd020 [ 68.469969][ T8441] R13: ffffffff89e3ce20 R14: ffffffff81653630 R15: dffffc0000000000 [ 68.477933][ T8441] ? ktime_add_safe+0x70/0x70 [ 68.482611][ T8441] ? wake_up_klogd.part.0+0x8e/0xd0 [ 68.487807][ T8441] ? vprintk+0x95/0x260 [ 68.491960][ T8441] ? lockdep_hardirqs_on+0x79/0x100 [ 68.497157][ T8441] debug_check_no_obj_freed+0x301/0x420 [ 68.502701][ T8441] ? slab_free_freelist_hook+0x13f/0x240 [ 68.508333][ T8441] slab_free_freelist_hook+0x171/0x240 [ 68.513789][ T8441] kfree+0xe4/0x540 [ 68.517591][ T8441] ? qdisc_create+0xbcf/0x1320 [ 68.522353][ T8441] ? taprio_destroy+0x3ce/0x4d0 [ 68.527205][ T8441] qdisc_create+0xbcf/0x1320 [ 68.531796][ T8441] ? tc_get_qdisc+0xb50/0xb50 [ 68.536474][ T8441] ? __nla_parse+0x3d/0x50 [ 68.540888][ T8441] tc_modify_qdisc+0x4c8/0x1a60 [ 68.545746][ T8441] ? qdisc_create+0x1320/0x1320 [ 68.550591][ T8441] ? rtnetlink_rcv_msg+0x3be/0xb80 [ 68.555712][ T8441] ? qdisc_create+0x1320/0x1320 [ 68.560557][ T8441] rtnetlink_rcv_msg+0x413/0xb80 [ 68.565508][ T8441] ? rtnl_newlink+0xa0/0xa0 [ 68.570012][ T8441] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 68.575295][ T8441] netlink_rcv_skb+0x153/0x420 [ 68.580054][ T8441] ? rtnl_newlink+0xa0/0xa0 [ 68.584551][ T8441] ? netlink_ack+0xa60/0xa60 [ 68.589134][ T8441] ? netlink_deliver_tap+0x1a2/0xc30 [ 68.594418][ T8441] ? netlink_deliver_tap+0x1b1/0xc30 [ 68.599706][ T8441] netlink_unicast+0x533/0x7d0 [ 68.604469][ T8441] ? netlink_attachskb+0x890/0x890 [ 68.609573][ T8441] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.615810][ T8441] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.622045][ T8441] ? __phys_addr_symbol+0x2c/0x70 [ 68.627064][ T8441] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 68.632778][ T8441] ? __check_object_size+0x16e/0x3f0 [ 68.638068][ T8441] netlink_sendmsg+0x86d/0xdb0 [ 68.642833][ T8441] ? netlink_unicast+0x7d0/0x7d0 [ 68.647769][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.654019][ T8441] ? netlink_unicast+0x7d0/0x7d0 [ 68.658967][ T8441] sock_sendmsg+0xcf/0x120 [ 68.663385][ T8441] ____sys_sendmsg+0x6e8/0x810 [ 68.668152][ T8441] ? kernel_sendmsg+0x50/0x50 [ 68.672826][ T8441] ? do_recvmmsg+0x6d0/0x6d0 [ 68.677424][ T8441] ? lock_chain_count+0x20/0x20 [ 68.682278][ T8441] ___sys_sendmsg+0xf3/0x170 [ 68.686870][ T8441] ? sendmsg_copy_msghdr+0x160/0x160 [ 68.692155][ T8441] ? __lock_acquire+0x162f/0x54a0 [ 68.697183][ T8441] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 68.703157][ T8441] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 68.709136][ T8441] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.715377][ T8441] ? __fget_light+0x215/0x280 [ 68.720048][ T8441] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.726284][ T8441] __sys_sendmsg+0xe5/0x1b0 [ 68.730784][ T8441] ? __sys_sendmsg_sock+0x30/0x30 [ 68.735814][ T8441] ? syscall_enter_from_user_mode+0x21/0x70 [ 68.741715][ T8441] do_syscall_64+0x35/0xb0 [ 68.746127][ T8441] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 68.752021][ T8441] RIP: 0033:0x4439e9 [ 68.755912][ T8441] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 68.775511][ T8441] RSP: 002b:00007ffe1f28ce58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.783927][ T8441] RAX: ffffffffffffffda RBX: 00007ffe1f28ce68 RCX: 00000000004439e9 [ 68.791986][ T8441] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 68.799953][ T8441] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 68.807915][ T8441] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1f28ce70 [ 68.815879][ T8441] R13: 00007ffe1f28ce90 R14: 00000000004b9018 R15: 00000000004004b8 [ 68.825290][ T8441] Kernel Offset: disabled [ 68.829621][ T8441] Rebooting in 86400 seconds..