[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 77.226154][ T27] audit: type=1800 audit(1582384567.626:25): pid=9342 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 77.245980][ T27] audit: type=1800 audit(1582384567.626:26): pid=9342 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 77.298293][ T27] audit: type=1800 audit(1582384567.626:27): pid=9342 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 '10.128.0.154' (ECDSA) to the list of known hosts. syzkaller login: [ 95.811617][ T9496] IPVS: ftp: loaded support on port[0] = 21 [ 95.860093][ T9496] chnl_net:caif_netlink_parms(): no params data found [ 95.897152][ T9496] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.905009][ T9496] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.913075][ T9496] device bridge_slave_0 entered promiscuous mode [ 95.921962][ T9496] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.929049][ T9496] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.937131][ T9496] device bridge_slave_1 entered promiscuous mode [ 95.954873][ T9496] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.966060][ T9496] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 95.985460][ T9496] team0: Port device team_slave_0 added [ 95.992700][ T9496] team0: Port device team_slave_1 added [ 96.008071][ T9496] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 96.015371][ T9496] 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. [ 96.041757][ T9496] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 96.054310][ T9496] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 96.061556][ T9496] 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. [ 96.087754][ T9496] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 96.191512][ T9496] device hsr_slave_0 entered promiscuous mode [ 96.269801][ T9496] device hsr_slave_1 entered promiscuous mode [ 96.412972][ T9496] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 96.472557][ T9496] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 96.542608][ T9496] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.602224][ T9496] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.654439][ T9496] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.661641][ T9496] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.669708][ T9496] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.669806][ T9496] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.710656][ T9496] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.723291][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 96.733921][ T2689] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.743116][ T2689] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.752973][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 96.766018][ T9496] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.777138][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 96.785833][ T2924] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.793162][ T2924] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.805914][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 96.814532][ T2707] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.821737][ T2707] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.840751][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 96.850110][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 96.860909][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 96.871457][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 96.887398][ T9496] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 96.899078][ T9496] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 96.913130][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 96.921905][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 96.930814][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 96.939339][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 96.949344][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 96.970734][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 96.978129][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 96.991623][ T9496] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 97.009143][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 97.018616][ T2924] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 97.039286][ T9496] device veth0_vlan entered promiscuous mode [ 97.046828][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 97.055784][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 97.065058][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 97.072924][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 97.085059][ T9496] device veth1_vlan entered promiscuous mode [ 97.104240][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 97.113607][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 97.121874][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 97.130862][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 97.141729][ T9496] device veth0_macvtap entered promiscuous mode [ 97.152153][ T9496] device veth1_macvtap entered promiscuous mode [ 97.168533][ T9496] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 97.176207][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 97.184673][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 97.193017][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 97.202273][ T2869] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 97.216095][ T9496] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 97.223946][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 97.232852][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 97.378111][ T9496] ------------[ cut here ]------------ [ 97.384037][ T9496] kobject: (00000000412d65d4): attempted to be registered with empty name! [ 97.393497][ T9496] WARNING: CPU: 1 PID: 9496 at lib/kobject.c:234 kobject_add_internal+0x7ac/0x9a0 [ 97.402826][ T9496] Kernel panic - not syncing: panic_on_warn set ... [ 97.409527][ T9496] CPU: 1 PID: 9496 Comm: syz-executor026 Not tainted 5.6.0-rc2-syzkaller #0 [ 97.418201][ T9496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.428356][ T9496] Call Trace: [ 97.432274][ T9496] dump_stack+0x197/0x210 [ 97.436595][ T9496] ? kobject_add_internal+0x7a0/0x9a0 [ 97.441954][ T9496] panic+0x2e3/0x75c [ 97.445921][ T9496] ? add_taint.cold+0x16/0x16 [ 97.450602][ T9496] ? __kasan_check_write+0x14/0x20 [ 97.455719][ T9496] ? __warn.cold+0x14/0x3e [ 97.460192][ T9496] ? __warn+0xd9/0x1cf [ 97.464258][ T9496] ? kobject_add_internal+0x7ac/0x9a0 [ 97.469621][ T9496] __warn.cold+0x2f/0x3e [ 97.473915][ T9496] ? kobject_add_internal+0x7ac/0x9a0 [ 97.479435][ T9496] report_bug+0x289/0x300 [ 97.483772][ T9496] do_error_trap+0x11b/0x200 [ 97.488360][ T9496] do_invalid_op+0x37/0x50 [ 97.492804][ T9496] ? kobject_add_internal+0x7ac/0x9a0 [ 97.498170][ T9496] invalid_op+0x23/0x30 [ 97.502317][ T9496] RIP: 0010:kobject_add_internal+0x7ac/0x9a0 [ 97.508284][ T9496] Code: 1a 98 ca f9 e9 f0 f8 ff ff 4c 89 f7 e8 6d 98 ca f9 e9 95 f9 ff ff e8 c3 f0 8b f9 4c 89 e6 48 c7 c7 a0 0e 1a 89 e8 e3 41 5c f9 <0f> 0b 41 bd ea ff ff ff e9 52 ff ff ff e8 a2 f0 8b f9 0f 0b e8 9b [ 97.527877][ T9496] RSP: 0018:ffffc90002046eb0 EFLAGS: 00010286 [ 97.533932][ T9496] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 97.541897][ T9496] RDX: 0000000000000000 RSI: ffffffff815eae46 RDI: fffff52000408dc8 [ 97.549856][ T9496] RBP: ffffc90002046f08 R08: ffff88809198a0c0 R09: ffffed1015d26659 [ 97.557813][ T9496] R10: ffffed1015d26658 R11: ffff8880ae9332c7 R12: ffff8880a2044668 [ 97.565820][ T9496] R13: 0000000000000000 R14: ffff8880a32bda80 R15: 0000000000000001 [ 97.573801][ T9496] ? vprintk_func+0x86/0x189 [ 97.578433][ T9496] ? __kasan_check_write+0x14/0x20 [ 97.583536][ T9496] kobject_add+0x150/0x1c0 [ 97.587959][ T9496] ? kset_create_and_add+0x1a0/0x1a0 [ 97.593254][ T9496] ? mutex_unlock+0xd/0x10 [ 97.597710][ T9496] ? device_add+0x300/0x1d00 [ 97.602293][ T9496] device_add+0x3be/0x1d00 [ 97.606704][ T9496] ? uevent_show+0x370/0x370 [ 97.611286][ T9496] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 97.616995][ T9496] ? rdma_counter_init+0x233/0x430 [ 97.622242][ T9496] ib_register_device+0x93e/0xe40 [ 97.627382][ T9496] ? enable_device_and_get+0x3c0/0x3c0 [ 97.633318][ T9496] rxe_register_device+0x52e/0x655 [ 97.638542][ T9496] rxe_add+0x122b/0x1661 [ 97.642791][ T9496] rxe_net_add+0x91/0xf0 [ 97.647028][ T9496] rxe_newlink+0x39/0x90 [ 97.651304][ T9496] nldev_newlink+0x28a/0x430 [ 97.655917][ T9496] ? nldev_set_doit+0x420/0x420 [ 97.660911][ T9496] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 97.666509][ T9496] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.672754][ T9496] ? cap_capable+0x205/0x270 [ 97.677549][ T9496] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.683798][ T9496] ? ns_capable+0x20/0x30 [ 97.688119][ T9496] ? __netlink_ns_capable+0x104/0x140 [ 97.693488][ T9496] ? nldev_set_doit+0x420/0x420 [ 97.698338][ T9496] rdma_nl_rcv+0x5d9/0x980 [ 97.702765][ T9496] ? rdma_nl_multicast+0x330/0x330 [ 97.707877][ T9496] ? __kasan_check_read+0x11/0x20 [ 97.712900][ T9496] ? netlink_deliver_tap+0x248/0xbf0 [ 97.718190][ T9496] ? __kasan_check_write+0x14/0x20 [ 97.723297][ T9496] netlink_unicast+0x59e/0x7e0 [ 97.728144][ T9496] ? netlink_attachskb+0x870/0x870 [ 97.733641][ T9496] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 97.739350][ T9496] ? __check_object_size+0x3d/0x437 [ 97.744542][ T9496] netlink_sendmsg+0x91c/0xea0 [ 97.749302][ T9496] ? netlink_unicast+0x7e0/0x7e0 [ 97.754233][ T9496] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 97.759769][ T9496] ? apparmor_socket_sendmsg+0x2a/0x30 [ 97.765215][ T9496] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.771452][ T9496] ? security_socket_sendmsg+0x8d/0xc0 [ 97.776900][ T9496] ? netlink_unicast+0x7e0/0x7e0 [ 97.781833][ T9496] sock_sendmsg+0xd7/0x130 [ 97.786241][ T9496] ____sys_sendmsg+0x753/0x880 [ 97.791085][ T9496] ? kernel_sendmsg+0x50/0x50 [ 97.795762][ T9496] ___sys_sendmsg+0x100/0x170 [ 97.800431][ T9496] ? sendmsg_copy_msghdr+0x70/0x70 [ 97.805570][ T9496] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 97.811553][ T9496] ? prep_transhuge_page+0xa0/0xa0 [ 97.816677][ T9496] ? do_page_fault+0x579/0x12e1 [ 97.821518][ T9496] ? find_held_lock+0x35/0x130 [ 97.826272][ T9496] ? do_page_fault+0x579/0x12e1 [ 97.831794][ T9496] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.838040][ T9496] ? __fget_light+0x1ad/0x270 [ 97.842800][ T9496] ? __fdget+0x1b/0x20 [ 97.847059][ T9496] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 97.853300][ T9496] __sys_sendmsg+0x105/0x1d0 [ 97.857884][ T9496] ? __sys_sendmsg_sock+0xc0/0xc0 [ 97.862915][ T9496] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 97.868379][ T9496] ? do_syscall_64+0x26/0x790 [ 97.873084][ T9496] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.879139][ T9496] ? do_syscall_64+0x26/0x790 [ 97.883819][ T9496] __x64_sys_sendmsg+0x78/0xb0 [ 97.888636][ T9496] do_syscall_64+0xfa/0x790 [ 97.893223][ T9496] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.899103][ T9496] RIP: 0033:0x4433f9 [ 97.902987][ T9496] 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 [ 97.922695][ T9496] RSP: 002b:00007fff35dfbcc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 97.931099][ T9496] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004433f9 [ 97.939473][ T9496] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 97.947444][ T9496] RBP: 00007fff35dfbce0 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 97.955405][ T9496] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 97.963365][ T9496] R13: 0000000000404990 R14: 0000000000000000 R15: 0000000000000000 [ 97.973070][ T9496] Kernel Offset: disabled [ 97.977472][ T9496] Rebooting in 86400 seconds..