[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 88.577093][ T25] audit: type=1800 audit(1582385252.020:25): pid=9573 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 88.596998][ T25] audit: type=1800 audit(1582385252.020:26): pid=9573 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 88.626586][ T25] audit: type=1800 audit(1582385252.020:27): pid=9573 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 '10.128.0.7' (ECDSA) to the list of known hosts. syzkaller login: [ 98.727830][ T9725] IPVS: ftp: loaded support on port[0] = 21 [ 98.775468][ T9725] chnl_net:caif_netlink_parms(): no params data found [ 98.811901][ T9725] bridge0: port 1(bridge_slave_0) entered blocking state [ 98.819394][ T9725] bridge0: port 1(bridge_slave_0) entered disabled state [ 98.827899][ T9725] device bridge_slave_0 entered promiscuous mode [ 98.836208][ T9725] bridge0: port 2(bridge_slave_1) entered blocking state [ 98.843339][ T9725] bridge0: port 2(bridge_slave_1) entered disabled state [ 98.851140][ T9725] device bridge_slave_1 entered promiscuous mode [ 98.868652][ T9725] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 98.879356][ T9725] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 98.897943][ T9725] team0: Port device team_slave_0 added [ 98.905126][ T9725] team0: Port device team_slave_1 added [ 98.919912][ T9725] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 98.926970][ T9725] 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. [ 98.953282][ T9725] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 98.966385][ T9725] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 98.973370][ T9725] 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. [ 98.999947][ T9725] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 99.058546][ T9725] device hsr_slave_0 entered promiscuous mode [ 99.116576][ T9725] device hsr_slave_1 entered promiscuous mode [ 99.215314][ T9725] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 99.259893][ T9725] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 99.319484][ T9725] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 99.368209][ T9725] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 99.420741][ T9725] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.428253][ T9725] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.435921][ T9725] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.443131][ T9725] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.486693][ T9725] 8021q: adding VLAN 0 to HW filter on device bond0 [ 99.500016][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 99.510739][ T2738] bridge0: port 1(bridge_slave_0) entered disabled state [ 99.519129][ T2738] bridge0: port 2(bridge_slave_1) entered disabled state [ 99.527708][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 99.540871][ T9725] 8021q: adding VLAN 0 to HW filter on device team0 [ 99.552990][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 99.562482][ T3039] bridge0: port 1(bridge_slave_0) entered blocking state [ 99.569584][ T3039] bridge0: port 1(bridge_slave_0) entered forwarding state [ 99.588123][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 99.597137][ T3039] bridge0: port 2(bridge_slave_1) entered blocking state [ 99.604206][ T3039] bridge0: port 2(bridge_slave_1) entered forwarding state [ 99.616583][ T2740] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 99.625346][ T2740] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 99.638421][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 99.655372][ T9725] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 99.667422][ T9725] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 99.680083][ T2740] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 99.689317][ T2740] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 99.698277][ T2740] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 99.716611][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 99.724081][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 99.736484][ T9725] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 99.755101][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 99.773982][ T2740] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 99.782862][ T2740] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 99.792864][ T9725] device veth0_vlan entered promiscuous mode [ 99.800953][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 99.809961][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 99.822183][ T9725] device veth1_vlan entered promiscuous mode [ 99.842711][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 99.851844][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 99.860237][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 99.869143][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 99.880017][ T9725] device veth0_macvtap entered promiscuous mode [ 99.890841][ T9725] device veth1_macvtap entered promiscuous mode [ 99.908175][ T9725] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 99.915621][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 99.924916][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 99.933244][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 99.942380][ T3039] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 99.955608][ T9725] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 99.963162][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 99.972665][ T2738] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 100.174614][ T9730] ------------[ cut here ]------------ [ 100.180474][ T9730] kobject: (00000000debe892f): attempted to be registered with empty name! [ 100.190080][ T9730] WARNING: CPU: 1 PID: 9730 at lib/kobject.c:234 kobject_add_internal+0x7ac/0x9a0 [ 100.199317][ T9730] Kernel panic - not syncing: panic_on_warn set ... [ 100.205918][ T9730] CPU: 1 PID: 9730 Comm: syz-executor622 Not tainted 5.6.0-rc2-syzkaller #0 [ 100.214626][ T9730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.224685][ T9730] Call Trace: [ 100.227966][ T9730] dump_stack+0x197/0x210 [ 100.232297][ T9730] ? kobject_add_internal+0x760/0x9a0 [ 100.237657][ T9730] panic+0x2e3/0x75c [ 100.241561][ T9730] ? add_taint.cold+0x16/0x16 [ 100.246248][ T9730] ? __kasan_check_write+0x14/0x20 [ 100.251367][ T9730] ? __warn.cold+0x14/0x3e [ 100.255782][ T9730] ? __warn+0xd9/0x1cf [ 100.259846][ T9730] ? kobject_add_internal+0x7ac/0x9a0 [ 100.265257][ T9730] __warn.cold+0x2f/0x3e [ 100.269495][ T9730] ? kobject_add_internal+0x7ac/0x9a0 [ 100.274856][ T9730] report_bug+0x289/0x300 [ 100.279192][ T9730] do_error_trap+0x11b/0x200 [ 100.283769][ T9730] do_invalid_op+0x37/0x50 [ 100.288205][ T9730] ? kobject_add_internal+0x7ac/0x9a0 [ 100.293558][ T9730] invalid_op+0x23/0x30 [ 100.297713][ T9730] RIP: 0010:kobject_add_internal+0x7ac/0x9a0 [ 100.303679][ T9730] Code: ea 0a cb f9 e9 f0 f8 ff ff 4c 89 f7 e8 3d 0b cb f9 e9 95 f9 ff ff e8 83 65 8c f9 4c 89 e6 48 c7 c7 a0 04 1a 89 e8 a3 b6 5c f9 <0f> 0b 41 bd ea ff ff ff e9 52 ff ff ff e8 62 65 8c f9 0f 0b e8 5b [ 100.323414][ T9730] RSP: 0018:ffffc90005bd6eb0 EFLAGS: 00010286 [ 100.329476][ T9730] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 100.337434][ T9730] RDX: 0000000000000000 RSI: ffffffff815eae46 RDI: fffff52000b7adc8 [ 100.345394][ T9730] RBP: ffffc90005bd6f08 R08: ffff8880a4006240 R09: ffffed1015d26659 [ 100.353400][ T9730] R10: ffffed1015d26658 R11: ffff8880ae9332c7 R12: ffff88809b6a4668 [ 100.361409][ T9730] R13: 0000000000000000 R14: ffff8880a9aacd00 R15: 0000000000000001 [ 100.369399][ T9730] ? vprintk_func+0x86/0x189 [ 100.374007][ T9730] ? __kasan_check_write+0x14/0x20 [ 100.379102][ T9730] kobject_add+0x150/0x1c0 [ 100.383497][ T9730] ? kset_create_and_add+0x1a0/0x1a0 [ 100.388784][ T9730] ? mutex_unlock+0xd/0x10 [ 100.393194][ T9730] ? device_add+0x300/0x1d00 [ 100.397824][ T9730] device_add+0x3be/0x1d00 [ 100.402234][ T9730] ? uevent_show+0x370/0x370 [ 100.406857][ T9730] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 100.412674][ T9730] ? rdma_counter_init+0x233/0x430 [ 100.417783][ T9730] ib_register_device+0x93e/0xe40 [ 100.422813][ T9730] ? enable_device_and_get+0x3c0/0x3c0 [ 100.428287][ T9730] rxe_register_device+0x52e/0x655 [ 100.433395][ T9730] rxe_add+0x122b/0x1661 [ 100.437646][ T9730] rxe_net_add+0x91/0xf0 [ 100.441944][ T9730] rxe_newlink+0x39/0x90 [ 100.446209][ T9730] nldev_newlink+0x28a/0x430 [ 100.450794][ T9730] ? nldev_set_doit+0x420/0x420 [ 100.455697][ T9730] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 100.461144][ T9730] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.467365][ T9730] ? cap_capable+0x205/0x270 [ 100.471957][ T9730] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.478212][ T9730] ? ns_capable+0x20/0x30 [ 100.482525][ T9730] ? __netlink_ns_capable+0x104/0x140 [ 100.487880][ T9730] ? nldev_set_doit+0x420/0x420 [ 100.492715][ T9730] rdma_nl_rcv+0x5d9/0x980 [ 100.497121][ T9730] ? rdma_nl_multicast+0x330/0x330 [ 100.502263][ T9730] ? __kasan_check_read+0x11/0x20 [ 100.507286][ T9730] ? netlink_deliver_tap+0x248/0xbf0 [ 100.512630][ T9730] ? __kasan_check_write+0x14/0x20 [ 100.517740][ T9730] netlink_unicast+0x59e/0x7e0 [ 100.522515][ T9730] ? netlink_attachskb+0x870/0x870 [ 100.527769][ T9730] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 100.533480][ T9730] ? __check_object_size+0x3d/0x437 [ 100.538678][ T9730] netlink_sendmsg+0x91c/0xea0 [ 100.543508][ T9730] ? netlink_unicast+0x7e0/0x7e0 [ 100.548462][ T9730] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 100.554029][ T9730] ? apparmor_socket_sendmsg+0x2a/0x30 [ 100.559486][ T9730] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.565712][ T9730] ? security_socket_sendmsg+0x8d/0xc0 [ 100.571163][ T9730] ? netlink_unicast+0x7e0/0x7e0 [ 100.576091][ T9730] sock_sendmsg+0xd7/0x130 [ 100.580528][ T9730] ____sys_sendmsg+0x753/0x880 [ 100.585359][ T9730] ? kernel_sendmsg+0x50/0x50 [ 100.590030][ T9730] ? __fget_files+0x337/0x520 [ 100.594719][ T9730] ? find_held_lock+0x35/0x130 [ 100.599480][ T9730] ___sys_sendmsg+0x100/0x170 [ 100.604172][ T9730] ? sendmsg_copy_msghdr+0x70/0x70 [ 100.609283][ T9730] ? __kasan_check_read+0x11/0x20 [ 100.614299][ T9730] ? __fget_files+0x359/0x520 [ 100.619121][ T9730] ? ksys_dup3+0x3e0/0x3e0 [ 100.623539][ T9730] ? find_held_lock+0x35/0x130 [ 100.628302][ T9730] ? do_page_fault+0x579/0x12e1 [ 100.633152][ T9730] ? __fget_light+0x1ad/0x270 [ 100.637826][ T9730] ? __fdget+0x1b/0x20 [ 100.641901][ T9730] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 100.648138][ T9730] __sys_sendmsg+0x105/0x1d0 [ 100.652758][ T9730] ? __sys_sendmsg_sock+0xc0/0xc0 [ 100.657776][ T9730] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 100.663254][ T9730] ? do_syscall_64+0x26/0x790 [ 100.667910][ T9730] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.673974][ T9730] ? do_syscall_64+0x26/0x790 [ 100.678643][ T9730] __x64_sys_sendmsg+0x78/0xb0 [ 100.683390][ T9730] do_syscall_64+0xfa/0x790 [ 100.687962][ T9730] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.693850][ T9730] RIP: 0033:0x448a09 [ 100.697758][ T9730] 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 [ 100.717388][ T9730] RSP: 002b:00007f915ab0ad98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 100.725920][ T9730] RAX: ffffffffffffffda RBX: 00000000006dec28 RCX: 0000000000448a09 [ 100.733875][ T9730] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 100.741879][ T9730] RBP: 00000000006dec20 R08: 0000000000000000 R09: 0000000000000000 [ 100.749851][ T9730] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dec2c [ 100.757883][ T9730] R13: 0000000040020009 R14: 0000000000000000 R15: 0001140300000038 [ 100.767181][ T9730] Kernel Offset: disabled [ 100.771604][ T9730] Rebooting in 86400 seconds..