[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 84.003085][ T26] audit: type=1800 audit(1583402208.545:25): pid=9619 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 84.036874][ T26] audit: type=1800 audit(1583402208.555:26): pid=9619 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 84.069330][ T26] audit: type=1800 audit(1583402208.555:27): pid=9619 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.155' (ECDSA) to the list of known hosts. syzkaller login: [ 92.533178][ T9773] IPVS: ftp: loaded support on port[0] = 21 [ 92.580758][ T9773] chnl_net:caif_netlink_parms(): no params data found [ 92.627490][ T9773] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.635131][ T9773] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.643079][ T9773] device bridge_slave_0 entered promiscuous mode [ 92.651389][ T9773] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.658587][ T9773] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.666332][ T9773] device bridge_slave_1 entered promiscuous mode [ 92.682927][ T9773] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 92.694115][ T9773] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 92.713196][ T9773] team0: Port device team_slave_0 added [ 92.720317][ T9773] team0: Port device team_slave_1 added [ 92.733645][ T9773] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 92.740656][ T9773] 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. [ 92.766619][ T9773] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 92.779344][ T9773] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 92.786297][ T9773] 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. [ 92.812242][ T9773] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 92.868784][ T9773] device hsr_slave_0 entered promiscuous mode [ 92.917094][ T9773] device hsr_slave_1 entered promiscuous mode [ 93.046196][ T9773] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 93.089775][ T9773] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 93.158892][ T9773] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 93.229549][ T9773] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 93.301352][ T9773] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.308569][ T9773] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.316108][ T9773] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.323261][ T9773] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.364515][ T9773] 8021q: adding VLAN 0 to HW filter on device bond0 [ 93.379562][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 93.389506][ T2820] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.397741][ T2820] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.405574][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 93.418824][ T9773] 8021q: adding VLAN 0 to HW filter on device team0 [ 93.429921][ T2941] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 93.438933][ T2941] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.445998][ T2941] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.458318][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 93.466726][ T2820] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.473832][ T2820] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.493152][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 93.502188][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 93.513230][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 93.529490][ T9773] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 93.540549][ T9773] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 93.553001][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 93.562103][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 93.570631][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 93.586998][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 93.594374][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 93.613066][ T9773] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 93.631028][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 93.641276][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 93.661890][ T9773] device veth0_vlan entered promiscuous mode [ 93.669064][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 93.677748][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 93.686704][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 93.695031][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 93.706425][ T9773] device veth1_vlan entered promiscuous mode [ 93.725684][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 93.734020][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 93.742257][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 93.750931][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 93.761467][ T9773] device veth0_macvtap entered promiscuous mode [ 93.771736][ T9773] device veth1_macvtap entered promiscuous mode [ 93.786663][ T9773] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 93.794163][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 93.803942][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 93.812142][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 93.820683][ T2820] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 93.832802][ T9773] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 93.840602][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 93.849616][ T2741] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 94.057637][ T9779] ------------[ cut here ]------------ [ 94.063189][ T9779] ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 [ 94.073276][ T9779] WARNING: CPU: 1 PID: 9779 at lib/debugobjects.c:485 debug_print_object+0x168/0x250 [ 94.082733][ T9779] Kernel panic - not syncing: panic_on_warn set ... [ 94.089350][ T9779] CPU: 1 PID: 9779 Comm: syz-executor565 Not tainted 5.6.0-rc2-syzkaller #0 [ 94.098083][ T9779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.108225][ T9779] Call Trace: [ 94.111507][ T9779] dump_stack+0x197/0x210 [ 94.115818][ T9779] ? debug_print_object+0x160/0x250 [ 94.120994][ T9779] panic+0x2e3/0x75c [ 94.124875][ T9779] ? add_taint.cold+0x16/0x16 [ 94.129579][ T9779] ? __kasan_check_write+0x14/0x20 [ 94.134683][ T9779] ? __warn.cold+0x14/0x3e [ 94.139087][ T9779] ? __warn+0xd9/0x1cf [ 94.143138][ T9779] ? debug_print_object+0x168/0x250 [ 94.148316][ T9779] __warn.cold+0x2f/0x3e [ 94.152704][ T9779] ? debug_print_object+0x168/0x250 [ 94.157906][ T9779] report_bug+0x289/0x300 [ 94.162237][ T9779] do_error_trap+0x11b/0x200 [ 94.166839][ T9779] do_invalid_op+0x37/0x50 [ 94.171248][ T9779] ? debug_print_object+0x168/0x250 [ 94.176438][ T9779] invalid_op+0x23/0x30 [ 94.180579][ T9779] RIP: 0010:debug_print_object+0x168/0x250 [ 94.186393][ T9779] Code: dd 00 e2 91 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 00 e2 91 88 48 c7 c7 60 d7 91 88 e8 e7 ab 9f fd <0f> 0b 83 05 23 b5 ff 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 [ 94.206078][ T9779] RSP: 0018:ffffc900021970b0 EFLAGS: 00010286 [ 94.212174][ T9779] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 94.220169][ T9779] RDX: 0000000000000000 RSI: ffffffff815eae46 RDI: fffff52000432e08 [ 94.228122][ T9779] RBP: ffffc900021970f0 R08: ffff888098ee2280 R09: ffffed1015d26659 [ 94.236070][ T9779] R10: ffffed1015d26658 R11: ffff8880ae9332c7 R12: 0000000000000001 [ 94.244023][ T9779] R13: ffffffff89bac120 R14: 0000000000000000 R15: 1ffff92000432e24 [ 94.252007][ T9779] ? vprintk_func+0x86/0x189 [ 94.256693][ T9779] debug_object_activate+0x346/0x470 [ 94.261958][ T9779] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 94.267756][ T9779] ? debug_object_init_on_stack+0x20/0x20 [ 94.273476][ T9779] ? mark_lock+0xc2/0x1220 [ 94.277869][ T9779] ? find_held_lock+0x35/0x130 [ 94.282625][ T9779] ? delayed_work_timer_fn+0x90/0x90 [ 94.287904][ T9779] call_rcu+0x2f/0x700 [ 94.291982][ T9779] ? trace_hardirqs_on+0x67/0x240 [ 94.297128][ T9779] queue_rcu_work+0x8a/0xa0 [ 94.301626][ T9779] ? __route4_delete_filter+0xe0/0xe0 [ 94.306992][ T9779] tcf_queue_work+0xd3/0x110 [ 94.311576][ T9779] route4_change+0x19e8/0x2250 [ 94.316336][ T9779] ? route4_destroy+0x850/0x850 [ 94.321175][ T9779] ? __kasan_check_write+0x14/0x20 [ 94.326276][ T9779] ? wait_for_completion+0x440/0x440 [ 94.331555][ T9779] ? route4_destroy+0x850/0x850 [ 94.336406][ T9779] tc_new_tfilter+0xb82/0x2480 [ 94.341164][ T9779] ? tc_del_tfilter+0x1560/0x1560 [ 94.346169][ T9779] ? __kasan_check_read+0x11/0x20 [ 94.351186][ T9779] ? __lock_acquire+0x8a0/0x4a00 [ 94.356113][ T9779] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.362341][ T9779] ? __dev_queue_xmit+0x172b/0x3080 [ 94.367541][ T9779] ? rtnetlink_rcv_msg+0x7e3/0xaf0 [ 94.372642][ T9779] ? find_held_lock+0x35/0x130 [ 94.377399][ T9779] ? rcu_read_lock_held_common+0x130/0x130 [ 94.383204][ T9779] ? tc_del_tfilter+0x1560/0x1560 [ 94.388207][ T9779] ? __kasan_check_read+0x11/0x20 [ 94.393211][ T9779] ? tc_del_tfilter+0x1560/0x1560 [ 94.398215][ T9779] rtnetlink_rcv_msg+0x824/0xaf0 [ 94.403133][ T9779] ? rtnl_bridge_getlink+0x910/0x910 [ 94.408757][ T9779] ? netlink_deliver_tap+0x226/0xbf0 [ 94.414029][ T9779] ? find_held_lock+0x35/0x130 [ 94.418783][ T9779] netlink_rcv_skb+0x177/0x450 [ 94.423528][ T9779] ? rtnl_bridge_getlink+0x910/0x910 [ 94.428897][ T9779] ? netlink_ack+0xb50/0xb50 [ 94.433591][ T9779] ? __kasan_check_read+0x11/0x20 [ 94.438598][ T9779] ? netlink_deliver_tap+0x248/0xbf0 [ 94.443868][ T9779] rtnetlink_rcv+0x1d/0x30 [ 94.448284][ T9779] netlink_unicast+0x59e/0x7e0 [ 94.453047][ T9779] ? netlink_attachskb+0x870/0x870 [ 94.458155][ T9779] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 94.463856][ T9779] ? __check_object_size+0x3d/0x437 [ 94.469040][ T9779] netlink_sendmsg+0x91c/0xea0 [ 94.473806][ T9779] ? netlink_unicast+0x7e0/0x7e0 [ 94.478724][ T9779] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 94.484273][ T9779] ? apparmor_socket_sendmsg+0x2a/0x30 [ 94.489736][ T9779] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.495971][ T9779] ? security_socket_sendmsg+0x8d/0xc0 [ 94.501422][ T9779] ? netlink_unicast+0x7e0/0x7e0 [ 94.506352][ T9779] sock_sendmsg+0xd7/0x130 [ 94.510749][ T9779] ____sys_sendmsg+0x753/0x880 [ 94.515506][ T9779] ? kernel_sendmsg+0x50/0x50 [ 94.520178][ T9779] ? __fget_files+0x337/0x520 [ 94.524845][ T9779] ? find_held_lock+0x35/0x130 [ 94.529603][ T9779] ___sys_sendmsg+0x100/0x170 [ 94.534261][ T9779] ? sendmsg_copy_msghdr+0x70/0x70 [ 94.539366][ T9779] ? __kasan_check_read+0x11/0x20 [ 94.544384][ T9779] ? __fget_files+0x359/0x520 [ 94.549074][ T9779] ? ksys_dup3+0x3e0/0x3e0 [ 94.553481][ T9779] ? __kasan_check_read+0x11/0x20 [ 94.558502][ T9779] ? __fget_light+0x1ad/0x270 [ 94.563179][ T9779] ? __fdget+0x1b/0x20 [ 94.567259][ T9779] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 94.573505][ T9779] __sys_sendmsg+0x105/0x1d0 [ 94.578079][ T9779] ? __sys_sendmsg_sock+0xc0/0xc0 [ 94.583144][ T9779] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 94.589129][ T9779] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 94.594578][ T9779] ? do_syscall_64+0x26/0x790 [ 94.599307][ T9779] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.605368][ T9779] ? do_syscall_64+0x26/0x790 [ 94.610037][ T9779] __x64_sys_sendmsg+0x78/0xb0 [ 94.614924][ T9779] do_syscall_64+0xfa/0x790 [ 94.619415][ T9779] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.625287][ T9779] RIP: 0033:0x449159 [ 94.629161][ T9779] Code: e8 fc 19 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 4b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 94.648759][ T9779] RSP: 002b:00007f7699ad8d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 94.657172][ T9779] RAX: ffffffffffffffda RBX: 00000000006dfc78 RCX: 0000000000449159 [ 94.665129][ T9779] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 94.673079][ T9779] RBP: 00000000006dfc70 R08: 0000000000000000 R09: 0000000000000000 [ 94.681037][ T9779] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dfc7c [ 94.688987][ T9779] R13: 0000000000000005 R14: 00a3a20740000000 R15: 0507002400000038 [ 94.698424][ T9779] Kernel Offset: disabled [ 94.702753][ T9779] Rebooting in 86400 seconds..