[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 68.154641][ T27] audit: type=1800 audit(1584351268.569:25): pid=9601 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 68.174498][ T27] audit: type=1800 audit(1584351268.569:26): pid=9601 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 68.222144][ T27] audit: type=1800 audit(1584351268.569:27): pid=9601 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.30' (ECDSA) to the list of known hosts. syzkaller login: [ 77.604973][ T9755] IPVS: ftp: loaded support on port[0] = 21 [ 77.659151][ T9755] chnl_net:caif_netlink_parms(): no params data found [ 77.699510][ T9755] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.707032][ T9755] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.715406][ T9755] device bridge_slave_0 entered promiscuous mode [ 77.724139][ T9755] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.731514][ T9755] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.739348][ T9755] device bridge_slave_1 entered promiscuous mode [ 77.758396][ T9755] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.770857][ T9755] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.791019][ T9755] team0: Port device team_slave_0 added [ 77.798965][ T9755] team0: Port device team_slave_1 added [ 77.815294][ T9755] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.822375][ T9755] 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. [ 77.848316][ T9755] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.861426][ T9755] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.868601][ T9755] 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. [ 77.894589][ T9755] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.959677][ T9755] device hsr_slave_0 entered promiscuous mode [ 78.007828][ T9755] device hsr_slave_1 entered promiscuous mode [ 78.135068][ T9755] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.170676][ T9755] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.220196][ T9755] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.260159][ T9755] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.313561][ T9755] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.320883][ T9755] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.328795][ T9755] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.335870][ T9755] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.383473][ T9755] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.396465][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.406552][ T2692] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.415516][ T2692] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.424493][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.439164][ T9755] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.450563][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.459583][ T2707] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.466678][ T2707] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.488801][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.497278][ T2692] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.504423][ T2692] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.513341][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.522331][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.534191][ T2706] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.550250][ T9755] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 78.561220][ T9755] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 78.573971][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.584040][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.593427][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.613186][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.621221][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.633861][ T9755] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.653548][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.672589][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 78.681333][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.691309][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.699521][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.709572][ T9755] device veth0_vlan entered promiscuous mode [ 78.723801][ T9755] device veth1_vlan entered promiscuous mode [ 78.745657][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.754765][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.763315][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 78.772077][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.782844][ T9755] device veth0_macvtap entered promiscuous mode [ 78.793586][ T9755] device veth1_macvtap entered promiscuous mode [ 78.811370][ T9755] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.820096][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.828373][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 78.836320][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.845275][ T2692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.858094][ T9755] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.865670][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.874956][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program executing program executing program executing program [ 79.118459][ T9775] ------------[ cut here ]------------ [ 79.123974][ T9775] ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 [ 79.133744][ T9775] WARNING: CPU: 0 PID: 9775 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 79.143211][ T9775] Kernel panic - not syncing: panic_on_warn set ... [ 79.149799][ T9775] CPU: 0 PID: 9775 Comm: syz-executor647 Not tainted 5.6.0-rc5-syzkaller #0 [ 79.158449][ T9775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.168501][ T9775] Call Trace: [ 79.171876][ T9775] dump_stack+0x188/0x20d [ 79.176205][ T9775] ? debug_print_object+0x120/0x250 [ 79.181389][ T9775] panic+0x2e3/0x75c [ 79.185279][ T9775] ? add_taint.cold+0x16/0x16 [ 79.189977][ T9775] ? __probe_kernel_read+0x188/0x1d0 [ 79.195268][ T9775] ? __warn.cold+0x14/0x35 [ 79.199679][ T9775] ? __warn+0xd5/0x1c8 [ 79.203756][ T9775] ? debug_print_object+0x160/0x250 [ 79.208964][ T9775] __warn.cold+0x2f/0x35 [ 79.213190][ T9775] ? debug_print_object+0x160/0x250 [ 79.218369][ T9775] report_bug+0x27b/0x2f0 [ 79.222705][ T9775] do_error_trap+0x12b/0x220 [ 79.227289][ T9775] ? debug_print_object+0x160/0x250 [ 79.232482][ T9775] do_invalid_op+0x32/0x40 [ 79.236889][ T9775] ? debug_print_object+0x160/0x250 [ 79.242068][ T9775] invalid_op+0x23/0x30 [ 79.246218][ T9775] RIP: 0010:debug_print_object+0x160/0x250 [ 79.252028][ T9775] Code: dd c0 f3 51 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd c0 f3 51 88 48 c7 c7 20 e9 51 88 e8 d8 cc b1 fd <0f> 0b 83 05 ab 9a d3 06 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 79.274224][ T9775] RSP: 0018:ffffc900021a7178 EFLAGS: 00010282 [ 79.280306][ T9775] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 79.288283][ T9775] RDX: 0000000000000000 RSI: ffffffff815c06c1 RDI: fffff52000434e21 [ 79.296237][ T9775] RBP: 0000000000000001 R08: ffff8880a37b21c0 R09: ffffed1015cc6659 [ 79.304202][ T9775] R10: ffffed1015cc6658 R11: ffff8880ae6332c7 R12: ffffffff897acba0 [ 79.312168][ T9775] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000434e3c [ 79.320169][ T9775] ? vprintk_func+0x81/0x17e [ 79.324762][ T9775] ? debug_print_object+0x160/0x250 [ 79.329946][ T9775] ? lockdep_hardirqs_on+0x417/0x5d0 [ 79.335221][ T9775] debug_object_activate+0x346/0x470 [ 79.340494][ T9775] ? _raw_spin_unlock_irqrestore+0x9b/0xe0 [ 79.346293][ T9775] ? debug_object_init_on_stack+0x20/0x20 [ 79.352022][ T9775] ? find_held_lock+0x2d/0x110 [ 79.357413][ T9775] ? free_object+0x70/0x70 [ 79.363389][ T9775] ? lock_downgrade+0x7f0/0x7f0 [ 79.368611][ T9775] ? delayed_work_timer_fn+0x90/0x90 [ 79.373995][ T9775] call_rcu+0x2c/0x690 [ 79.378180][ T9775] queue_rcu_work+0x82/0xa0 [ 79.382724][ T9775] route4_change+0x19e8/0x2250 [ 79.387495][ T9775] ? route4_destroy+0x800/0x800 [ 79.392510][ T9775] ? wait_for_completion+0x3c0/0x3c0 [ 79.398206][ T9775] tc_new_tfilter+0xa59/0x20b0 [ 79.403394][ T9775] ? route4_destroy+0x800/0x800 [ 79.408374][ T9775] ? tc_del_tfilter+0x1430/0x1430 [ 79.413428][ T9775] ? __lock_acquire+0x80b/0x3ca0 [ 79.418571][ T9775] ? apparmor_capable+0x454/0x8a0 [ 79.423718][ T9775] ? rcu_read_lock_held+0x9c/0xb0 [ 79.428978][ T9775] ? tc_del_tfilter+0x1430/0x1430 [ 79.434318][ T9775] rtnetlink_rcv_msg+0x810/0xad0 [ 79.439354][ T9775] ? rtnl_bridge_getlink+0x880/0x880 [ 79.444871][ T9775] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 79.450236][ T9775] ? __copy_skb_header+0x1e0/0x5b0 [ 79.455731][ T9775] ? skb_splice_bits+0x1a0/0x1a0 [ 79.461258][ T9775] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 79.467349][ T9775] ? kmem_cache_alloc+0x261/0x730 [ 79.472477][ T9775] netlink_rcv_skb+0x15a/0x410 [ 79.477580][ T9775] ? rtnl_bridge_getlink+0x880/0x880 [ 79.483141][ T9775] ? netlink_ack+0xa80/0xa80 [ 79.487923][ T9775] netlink_unicast+0x537/0x740 [ 79.492682][ T9775] ? netlink_attachskb+0x810/0x810 [ 79.497855][ T9775] ? _copy_from_iter_full+0x25c/0x870 [ 79.503237][ T9775] ? __phys_addr_symbol+0x2c/0x70 [ 79.509297][ T9775] ? __check_object_size+0x171/0x437 [ 79.514592][ T9775] netlink_sendmsg+0x882/0xe10 [ 79.519376][ T9775] ? aa_af_perm+0x260/0x260 [ 79.523878][ T9775] ? netlink_unicast+0x740/0x740 [ 79.528823][ T9775] ? netlink_unicast+0x740/0x740 [ 79.533758][ T9775] sock_sendmsg+0xcf/0x120 [ 79.538430][ T9775] ____sys_sendmsg+0x6b9/0x7d0 [ 79.543181][ T9775] ? kernel_sendmsg+0x50/0x50 [ 79.547959][ T9775] ___sys_sendmsg+0x100/0x170 [ 79.552650][ T9775] ? sendmsg_copy_msghdr+0x70/0x70 [ 79.557782][ T9775] ? __fget_files+0x329/0x4f0 [ 79.562465][ T9775] ? ksys_dup3+0x3c0/0x3c0 [ 79.566888][ T9775] ? __fget_light+0x208/0x270 [ 79.571758][ T9775] __sys_sendmsg+0xec/0x1b0 [ 79.576246][ T9775] ? __sys_sendmsg_sock+0xb0/0xb0 [ 79.582403][ T9775] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 79.588733][ T9775] ? __x64_sys_futex+0x380/0x4f0 [ 79.593758][ T9775] ? trace_hardirqs_off_caller+0x55/0x230 [ 79.600148][ T9775] ? do_syscall_64+0x21/0x7d0 [ 79.604988][ T9775] do_syscall_64+0xf6/0x7d0 [ 79.609499][ T9775] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 79.615515][ T9775] RIP: 0033:0x449739 [ 79.619409][ T9775] Code: e8 ec 0e 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 ab 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 79.640067][ T9775] RSP: 002b:00007f8a8a845d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 79.649178][ T9775] RAX: ffffffffffffffda RBX: 00000000006dec78 RCX: 0000000000449739 [ 79.657146][ T9775] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000006 [ 79.665120][ T9775] RBP: 00000000006dec70 R08: 0000000000000000 R09: 0000000000000000 [ 79.673079][ T9775] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dec7c [ 79.681352][ T9775] R13: 0000000000000005 R14: 00a3a20740000000 R15: 0507002400000038 [ 79.691168][ T9775] Kernel Offset: disabled [ 79.695531][ T9775] Rebooting in 86400 seconds..