[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 77.043208][ T26] audit: type=1800 audit(1583763330.560:25): pid=9289 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 77.076402][ T26] audit: type=1800 audit(1583763330.570:26): pid=9289 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 77.112661][ T26] audit: type=1800 audit(1583763330.570:27): pid=9289 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 '10.128.0.103' (ECDSA) to the list of known hosts. syzkaller login: [ 87.410262][ T9441] IPVS: ftp: loaded support on port[0] = 21 [ 87.464584][ T9441] chnl_net:caif_netlink_parms(): no params data found [ 87.506161][ T9441] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.513693][ T9441] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.521842][ T9441] device bridge_slave_0 entered promiscuous mode [ 87.530306][ T9441] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.537514][ T9441] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.545584][ T9441] device bridge_slave_1 entered promiscuous mode [ 87.564270][ T9441] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 87.575329][ T9441] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 87.596740][ T9441] team0: Port device team_slave_0 added [ 87.604555][ T9441] team0: Port device team_slave_1 added [ 87.621402][ T9441] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 87.628467][ T9441] 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. [ 87.655276][ T9441] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 87.668123][ T9441] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 87.675125][ T9441] 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. [ 87.701071][ T9441] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 87.788583][ T9441] device hsr_slave_0 entered promiscuous mode [ 87.856777][ T9441] device hsr_slave_1 entered promiscuous mode [ 87.964562][ T9441] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 88.029310][ T9441] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 88.099294][ T9441] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 88.139644][ T9441] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 88.212676][ T9441] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.219897][ T9441] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.228043][ T9441] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.235101][ T9441] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.281052][ T9441] 8021q: adding VLAN 0 to HW filter on device bond0 [ 88.294361][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 88.304291][ T3210] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.312458][ T3210] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.320969][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 88.334757][ T9441] 8021q: adding VLAN 0 to HW filter on device team0 [ 88.346465][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 88.354845][ T2831] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.361958][ T2831] bridge0: port 1(bridge_slave_0) entered forwarding state [ 88.387019][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 88.395396][ T3210] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.402498][ T3210] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.410555][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 88.419584][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 88.429064][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 88.439338][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 88.453110][ T9441] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 88.465795][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 88.474877][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 88.497338][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 88.504790][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 88.517223][ T9441] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.541816][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 88.552898][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 88.573289][ T9441] device veth0_vlan entered promiscuous mode [ 88.580089][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 88.589300][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 88.599375][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 88.607199][ T2953] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 88.620175][ T9441] device veth1_vlan entered promiscuous mode [ 88.641234][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 88.650365][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 88.659491][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 88.668062][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 88.678849][ T9441] device veth0_macvtap entered promiscuous mode [ 88.692075][ T9441] device veth1_macvtap entered promiscuous mode [ 88.709231][ T9441] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 88.718122][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 88.726129][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 88.735058][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 88.744218][ T2831] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 88.757614][ T9441] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 88.765212][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 88.774982][ T3210] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 88.963760][ T9441] ------------[ cut here ]------------ [ 88.970433][ T9441] kobject: (0000000088d180fa): attempted to be registered with empty name! [ 88.980074][ T9441] WARNING: CPU: 0 PID: 9441 at lib/kobject.c:234 kobject_add_internal+0x797/0x990 [ 88.989279][ T9441] Kernel panic - not syncing: panic_on_warn set ... [ 88.995848][ T9441] CPU: 0 PID: 9441 Comm: syz-executor577 Not tainted 5.6.0-rc3-next-20200228-syzkaller #0 [ 89.005754][ T9441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 89.015846][ T9441] Call Trace: [ 89.019174][ T9441] dump_stack+0x188/0x20d [ 89.023495][ T9441] ? kobject_add_internal+0x760/0x990 [ 89.028860][ T9441] panic+0x2e3/0x75c [ 89.032736][ T9441] ? add_taint.cold+0x16/0x16 [ 89.037420][ T9441] ? __probe_kernel_read+0x188/0x1d0 [ 89.042690][ T9441] ? __warn.cold+0x14/0x35 [ 89.047083][ T9441] ? __warn+0xd5/0x1c8 [ 89.051135][ T9441] ? kobject_add_internal+0x797/0x990 [ 89.056492][ T9441] __warn.cold+0x2f/0x35 [ 89.060729][ T9441] ? kobject_add_internal+0x797/0x990 [ 89.066079][ T9441] report_bug+0x27b/0x2f0 [ 89.070400][ T9441] do_error_trap+0x12b/0x220 [ 89.074976][ T9441] ? kobject_add_internal+0x797/0x990 [ 89.080334][ T9441] do_invalid_op+0x32/0x40 [ 89.084728][ T9441] ? kobject_add_internal+0x797/0x990 [ 89.090098][ T9441] invalid_op+0x23/0x30 [ 89.094242][ T9441] RIP: 0010:kobject_add_internal+0x797/0x990 [ 89.100199][ T9441] Code: df 1a f3 f9 e9 02 f9 ff ff 4c 89 ef e8 02 1b f3 f9 e9 9f f9 ff ff e8 58 fa b5 f9 48 89 ee 48 c7 c7 20 11 fb 88 e8 c1 c5 87 f9 <0f> 0b 41 bc ea ff ff ff e9 53 ff ff ff e8 37 fa b5 f9 0f 0b e8 30 [ 89.120055][ T9441] RSP: 0018:ffffc90002676f58 EFLAGS: 00010282 [ 89.126093][ T9441] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 89.134047][ T9441] RDX: 0000000000000000 RSI: ffffffff815c4e91 RDI: fffff520004ceddd [ 89.141997][ T9441] RBP: ffff88808be7c668 R08: ffff88809d5ee240 R09: ffffed1015cc6661 [ 89.149947][ T9441] R10: ffffed1015cc6660 R11: ffff8880ae633307 R12: ffff88808be7c668 [ 89.157897][ T9441] R13: 0000000000000000 R14: ffff888094d26480 R15: 0000000000000001 [ 89.165867][ T9441] ? vprintk_func+0x81/0x17e [ 89.170488][ T9441] ? kobject_add_internal+0x797/0x990 [ 89.175884][ T9441] kobject_add+0x150/0x1c0 [ 89.180301][ T9441] ? kset_create_and_add+0x190/0x190 [ 89.185579][ T9441] ? device_add+0x2d6/0x1bc0 [ 89.190184][ T9441] device_add+0x391/0x1bc0 [ 89.194590][ T9441] ? uevent_show+0x360/0x360 [ 89.199217][ T9441] ? rxe_ib_alloc_hw_stats+0xf9/0x130 [ 89.204583][ T9441] ? rdma_counter_init+0x200/0x400 [ 89.209688][ T9441] ib_register_device+0x8cb/0xda0 [ 89.214702][ T9441] ? enable_device_and_get+0x3b0/0x3b0 [ 89.220150][ T9441] ? crypto_create_tfm+0x118/0x2f0 [ 89.225256][ T9441] ? crypto_alloc_tfm+0x124/0x340 [ 89.230261][ T9441] ? ib_device_set_netdev+0x499/0x680 [ 89.235616][ T9441] rxe_register_device+0x4fa/0x621 [ 89.240715][ T9441] rxe_add+0x1227/0x1664 [ 89.244968][ T9441] rxe_net_add+0x8c/0xe0 [ 89.249195][ T9441] rxe_newlink+0x34/0x90 [ 89.253416][ T9441] nldev_newlink+0x27f/0x400 [ 89.257995][ T9441] ? nldev_set_doit+0x3e0/0x3e0 [ 89.262878][ T9441] ? apparmor_capable+0x49c/0x8a0 [ 89.267875][ T9441] ? apparmor_capable+0x49c/0x8a0 [ 89.272891][ T9441] ? apparmor_cred_prepare+0x760/0x760 [ 89.278337][ T9441] ? apparmor_cred_prepare+0x760/0x760 [ 89.283793][ T9441] ? cap_capable+0x1eb/0x250 [ 89.288379][ T9441] ? ns_capable_common+0xe2/0x100 [ 89.293389][ T9441] ? nldev_set_doit+0x3e0/0x3e0 [ 89.298225][ T9441] rdma_nl_rcv+0x586/0x900 [ 89.302635][ T9441] ? rdma_nl_multicast+0x310/0x310 [ 89.307786][ T9441] ? netlink_deliver_tap+0x227/0xb50 [ 89.313136][ T9441] netlink_unicast+0x537/0x740 [ 89.317907][ T9441] ? netlink_attachskb+0x810/0x810 [ 89.323017][ T9441] ? _copy_from_iter_full+0x25c/0x870 [ 89.328390][ T9441] ? __phys_addr_symbol+0x2c/0x70 [ 89.333411][ T9441] ? __check_object_size+0x171/0x437 [ 89.338702][ T9441] netlink_sendmsg+0x882/0xe10 [ 89.343463][ T9441] ? aa_af_perm+0x260/0x260 [ 89.347949][ T9441] ? netlink_unicast+0x740/0x740 [ 89.352922][ T9441] ? netlink_unicast+0x740/0x740 [ 89.357860][ T9441] sock_sendmsg+0xcf/0x120 [ 89.362278][ T9441] ____sys_sendmsg+0x6b9/0x7d0 [ 89.367021][ T9441] ? kernel_sendmsg+0x50/0x50 [ 89.371700][ T9441] ? mark_lock+0xbc/0x1220 [ 89.382030][ T9441] ___sys_sendmsg+0x100/0x170 [ 89.386692][ T9441] ? lockdep_hardirqs_on+0x417/0x5d0 [ 89.391958][ T9441] ? sendmsg_copy_msghdr+0x70/0x70 [ 89.397068][ T9441] ? prep_transhuge_page+0xa0/0xa0 [ 89.402189][ T9441] ? pud_val+0x7c/0xf0 [ 89.406271][ T9441] ? pmd_val+0xf0/0xf0 [ 89.410343][ T9441] ? __lock_acquire+0x827/0x5270 [ 89.415287][ T9441] ? find_held_lock+0x2d/0x110 [ 89.420039][ T9441] ? do_page_fault+0x58b/0x12da [ 89.424879][ T9441] ? vm_insert_pages+0x6a0/0x6a0 [ 89.429800][ T9441] ? lock_downgrade+0x7f0/0x7f0 [ 89.434640][ T9441] ? __fget_light+0x1a5/0x270 [ 89.439323][ T9441] __sys_sendmsg+0xec/0x1b0 [ 89.443807][ T9441] ? __sys_sendmsg_sock+0xb0/0xb0 [ 89.448836][ T9441] ? trace_hardirqs_off_caller+0x55/0x230 [ 89.454538][ T9441] ? do_syscall_64+0x21/0x790 [ 89.459218][ T9441] do_syscall_64+0xf6/0x790 [ 89.463724][ T9441] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 89.469599][ T9441] RIP: 0033:0x4433f9 [ 89.473915][ T9441] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 7b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 89.493506][ T9441] RSP: 002b:00007ffff9543508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 89.501917][ T9441] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004433f9 [ 89.509884][ T9441] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 89.517852][ T9441] RBP: 00007ffff9543520 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 89.525893][ T9441] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 89.533923][ T9441] R13: 0000000000404990 R14: 0000000000000000 R15: 0000000000000000 [ 89.543133][ T9441] Kernel Offset: disabled [ 89.547528][ T9441] Rebooting in 86400 seconds..