[ 68.083445][ T27] audit: type=1800 audit(1584907765.525:24): pid=9741 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 68.836377][ T27] audit: type=1800 audit(1584907766.375:25): pid=9741 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 68.865281][ T27] audit: type=1800 audit(1584907766.375:26): pid=9741 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 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 '10.128.1.6' (ECDSA) to the list of known hosts. syzkaller login: [ 79.041770][ T9893] IPVS: ftp: loaded support on port[0] = 21 [ 79.095842][ T9893] chnl_net:caif_netlink_parms(): no params data found [ 79.135975][ T9893] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.143499][ T9893] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.151738][ T9893] device bridge_slave_0 entered promiscuous mode [ 79.160453][ T9893] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.167694][ T9893] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.176070][ T9893] device bridge_slave_1 entered promiscuous mode [ 79.194196][ T9893] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.205720][ T9893] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.225776][ T9893] team0: Port device team_slave_0 added [ 79.233099][ T9893] team0: Port device team_slave_1 added [ 79.249036][ T9893] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.256052][ T9893] 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. [ 79.282031][ T9893] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.294301][ T9893] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.301326][ T9893] 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. [ 79.327259][ T9893] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.387746][ T9893] device hsr_slave_0 entered promiscuous mode [ 79.445282][ T9893] device hsr_slave_1 entered promiscuous mode [ 79.553215][ T9893] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.598508][ T9893] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.648566][ T9893] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.707450][ T9893] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.761280][ T9893] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.768572][ T9893] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.776516][ T9893] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.783609][ T9893] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.830180][ T9893] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.843951][ T3064] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.854123][ T3064] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.862744][ T3064] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.871515][ T3064] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.885876][ T9893] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.897320][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.906074][ T2781] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.913159][ T2781] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.936302][ T3064] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.946020][ T3064] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.953074][ T3064] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.961483][ T3064] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.971555][ T3064] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.982462][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.004136][ T9893] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 80.015995][ T9893] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 80.029401][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.038655][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.047609][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.066172][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.073631][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.088939][ T9893] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.109401][ T3064] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 80.120448][ T3064] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.141813][ T9893] device veth0_vlan entered promiscuous mode [ 80.149495][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 80.157883][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.167342][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.175707][ T2943] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.190219][ T9893] device veth1_vlan entered promiscuous mode [ 80.211384][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.220065][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.228779][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 80.237648][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.248592][ T9893] device veth0_macvtap entered promiscuous mode [ 80.260624][ T9893] device veth1_macvtap entered promiscuous mode [ 80.278728][ T9893] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.287321][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.296711][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 80.304783][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.314067][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.325971][ T9893] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.336275][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.345717][ T2781] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 80.529318][ T9898] ------------[ cut here ]------------ [ 80.534808][ T9898] ODEBUG: activate active (active state 1) object type: rcu_head hint: 0x0 [ 80.543863][ T9898] WARNING: CPU: 0 PID: 9898 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 [ 80.553331][ T9898] Kernel panic - not syncing: panic_on_warn set ... [ 80.559930][ T9898] CPU: 0 PID: 9898 Comm: syz-executor137 Not tainted 5.6.0-rc3-next-20200228-syzkaller #0 [ 80.569796][ T9898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.579837][ T9898] Call Trace: [ 80.583122][ T9898] dump_stack+0x188/0x20d [ 80.587446][ T9898] ? debug_print_object+0xb0/0x250 [ 80.592587][ T9898] panic+0x2e3/0x75c [ 80.596492][ T9898] ? add_taint.cold+0x16/0x16 [ 80.601161][ T9898] ? __probe_kernel_read+0x188/0x1d0 [ 80.606430][ T9898] ? __warn.cold+0x14/0x35 [ 80.610835][ T9898] ? __warn+0xd5/0x1c8 [ 80.614902][ T9898] ? debug_print_object+0x160/0x250 [ 80.620098][ T9898] __warn.cold+0x2f/0x35 [ 80.624329][ T9898] ? debug_print_object+0x160/0x250 [ 80.629516][ T9898] report_bug+0x27b/0x2f0 [ 80.633834][ T9898] do_error_trap+0x12b/0x220 [ 80.638415][ T9898] ? debug_print_object+0x160/0x250 [ 80.643599][ T9898] do_invalid_op+0x32/0x40 [ 80.647997][ T9898] ? debug_print_object+0x160/0x250 [ 80.653180][ T9898] invalid_op+0x23/0x30 [ 80.657326][ T9898] RIP: 0010:debug_print_object+0x160/0x250 [ 80.663114][ T9898] Code: dd 00 25 72 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 00 25 72 88 48 c7 c7 60 1a 72 88 e8 48 06 b1 fd <0f> 0b 83 05 bb f8 f2 06 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 80.682711][ T9898] RSP: 0018:ffffc90002037168 EFLAGS: 00010286 [ 80.688943][ T9898] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 80.696918][ T9898] RDX: 0000000000000000 RSI: ffffffff815c4e91 RDI: fffff52000406e1f [ 80.704886][ T9898] RBP: 0000000000000001 R08: ffff88809a81c540 R09: fffffbfff1852704 [ 80.712868][ T9898] R10: fffffbfff1852703 R11: ffffffff8c29381f R12: ffffffff899adb60 [ 80.720823][ T9898] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000406e3a [ 80.728817][ T9898] ? vprintk_func+0x81/0x17e [ 80.733443][ T9898] ? debug_print_object+0x160/0x250 [ 80.738644][ T9898] ? lockdep_hardirqs_on+0x417/0x5d0 [ 80.743954][ T9898] debug_object_activate+0x346/0x470 [ 80.749237][ T9898] ? debug_object_init_on_stack+0x20/0x20 [ 80.754966][ T9898] ? route4_change+0xbb4/0x2250 [ 80.759821][ T9898] ? lock_downgrade+0x7f0/0x7f0 [ 80.764655][ T9898] ? delayed_work_timer_fn+0x90/0x90 [ 80.769926][ T9898] call_rcu+0x2c/0x7e0 [ 80.773983][ T9898] queue_rcu_work+0x82/0xa0 [ 80.778489][ T9898] route4_change+0xe8e/0x2250 [ 80.783157][ T9898] ? route4_destroy+0x820/0x820 [ 80.788004][ T9898] ? wait_for_completion+0x3c0/0x3c0 [ 80.793278][ T9898] tc_new_tfilter+0xa59/0x20b0 [ 80.798058][ T9898] ? route4_destroy+0x820/0x820 [ 80.802897][ T9898] ? tc_del_tfilter+0x1430/0x1430 [ 80.807927][ T9898] ? apparmor_capable+0x49c/0x8a0 [ 80.812948][ T9898] ? rcu_read_lock_held+0x9c/0xb0 [ 80.817974][ T9898] ? tc_del_tfilter+0x1430/0x1430 [ 80.823008][ T9898] rtnetlink_rcv_msg+0x810/0xad0 [ 80.827939][ T9898] ? rtnl_bridge_getlink+0x880/0x880 [ 80.833220][ T9898] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 80.838499][ T9898] ? __copy_skb_header+0x290/0x5b0 [ 80.843601][ T9898] ? skb_splice_bits+0x1a0/0x1a0 [ 80.848528][ T9898] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 80.854325][ T9898] ? kmem_cache_alloc+0x261/0x730 [ 80.859339][ T9898] netlink_rcv_skb+0x15a/0x410 [ 80.864107][ T9898] ? rtnl_bridge_getlink+0x880/0x880 [ 80.869405][ T9898] ? netlink_ack+0xa80/0xa80 [ 80.874000][ T9898] netlink_unicast+0x537/0x740 [ 80.878762][ T9898] ? netlink_attachskb+0x810/0x810 [ 80.883864][ T9898] ? _copy_from_iter_full+0x25c/0x870 [ 80.889227][ T9898] ? __phys_addr_symbol+0x2c/0x70 [ 80.894247][ T9898] ? __check_object_size+0x171/0x437 [ 80.899520][ T9898] netlink_sendmsg+0x882/0xe10 [ 80.904281][ T9898] ? aa_af_perm+0x260/0x260 [ 80.908774][ T9898] ? netlink_unicast+0x740/0x740 [ 80.913754][ T9898] ? netlink_unicast+0x740/0x740 [ 80.918683][ T9898] sock_sendmsg+0xcf/0x120 [ 80.923086][ T9898] ____sys_sendmsg+0x6b9/0x7d0 [ 80.927892][ T9898] ? kernel_sendmsg+0x50/0x50 [ 80.932588][ T9898] ___sys_sendmsg+0x100/0x170 [ 80.937356][ T9898] ? sendmsg_copy_msghdr+0x70/0x70 [ 80.942462][ T9898] ? __fget_files+0x329/0x4f0 [ 80.947131][ T9898] ? do_dup2+0x520/0x520 [ 80.951362][ T9898] ? __fget_light+0x208/0x270 [ 80.956051][ T9898] __sys_sendmsg+0xec/0x1b0 [ 80.960546][ T9898] ? __sys_sendmsg_sock+0xb0/0xb0 [ 80.966252][ T9898] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 80.972219][ T9898] ? __x64_sys_futex+0x380/0x4f0 [ 80.977176][ T9898] ? trace_hardirqs_off_caller+0x55/0x230 [ 80.982881][ T9898] ? do_syscall_64+0x21/0x790 [ 80.987552][ T9898] do_syscall_64+0xf6/0x790 [ 80.992044][ T9898] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 80.997943][ T9898] RIP: 0033:0x448ff9 [ 81.001824][ T9898] Code: e8 cc 14 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 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 81.021431][ T9898] RSP: 002b:00007fac40943d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 81.029831][ T9898] RAX: ffffffffffffffda RBX: 00000000006dec68 RCX: 0000000000448ff9 [ 81.038746][ T9898] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 81.046714][ T9898] RBP: 00000000006dec60 R08: 0000000000000000 R09: 0000000000000000 [ 81.054681][ T9898] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dec6c [ 81.062662][ T9898] R13: 0000000000000005 R14: 00a3a20740000000 R15: 0507002400000038 [ 81.071992][ T9898] Kernel Offset: disabled [ 81.076336][ T9898] Rebooting in 86400 seconds..