[ 34.421098] audit: type=1800 audit(1551923427.735:27): pid=7375 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 34.448084] audit: type=1800 audit(1551923427.735:28): pid=7375 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 35.124368] audit: type=1800 audit(1551923428.505:29): pid=7375 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 35.149645] audit: type=1800 audit(1551923428.505:30): pid=7375 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.203' (ECDSA) to the list of known hosts. 2019/03/07 01:50:37 parsed 1 programs 2019/03/07 01:50:38 executed programs: 0 syzkaller login: [ 45.568574] IPVS: ftp: loaded support on port[0] = 21 [ 45.623618] chnl_net:caif_netlink_parms(): no params data found [ 45.652051] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.658758] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.665902] device bridge_slave_0 entered promiscuous mode [ 45.673308] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.679675] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.686755] device bridge_slave_1 entered promiscuous mode [ 45.701639] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.710579] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 45.727140] team0: Port device team_slave_0 added [ 45.733904] team0: Port device team_slave_1 added [ 45.782291] device hsr_slave_0 entered promiscuous mode [ 45.850380] device hsr_slave_1 entered promiscuous mode [ 45.907291] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.913815] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.921081] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.927442] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.956715] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.968952] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.989098] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.996705] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.004983] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 46.017569] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.027107] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.034953] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.041354] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.062857] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.071336] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.077671] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.085091] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.093304] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.101795] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.109143] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.117577] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.126993] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.143223] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.539045] WARNING: CPU: 0 PID: 7928 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 49.547480] Kernel panic - not syncing: panic_on_warn set ... [ 49.553369] CPU: 0 PID: 7928 Comm: syz-executor.0 Not tainted 5.0.0+ #9 [ 49.560108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.569459] Call Trace: [ 49.572048] dump_stack+0x172/0x1f0 [ 49.575672] ? kernfs_get.part.0+0x40/0x90 [ 49.579895] panic+0x2cb/0x65c [ 49.583114] ? __warn_printk+0xf3/0xf3 [ 49.586987] ? kernfs_get.part.0+0x73/0x90 [ 49.591206] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.596730] ? __warn.cold+0x5/0x45 [ 49.600340] ? __warn+0xe8/0x1d0 [ 49.603694] ? kernfs_get.part.0+0x73/0x90 [ 49.607915] __warn.cold+0x20/0x45 [ 49.611442] ? kernfs_get.part.0+0x73/0x90 [ 49.615664] report_bug+0x263/0x2b0 [ 49.619278] do_error_trap+0x11b/0x200 [ 49.623155] do_invalid_op+0x37/0x50 [ 49.626849] ? kernfs_get.part.0+0x73/0x90 [ 49.631070] invalid_op+0x14/0x20 [ 49.634506] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 49.639335] Code: e6 e8 51 27 9d ff 45 85 e4 74 1a e8 c7 25 9d ff be 04 00 00 00 48 89 df e8 8a a2 d4 ff f0 ff 03 5b 41 5c 5d c3 e8 ad 25 9d ff <0f> 0b eb dd 48 89 df e8 b1 c8 d4 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 49.658249] RSP: 0018:ffff88809f51f840 EFLAGS: 00010293 [ 49.663600] RAX: ffff88809f428640 RBX: ffff8880a9923b60 RCX: ffffffff81d3040f [ 49.670853] RDX: 0000000000000000 RSI: ffffffff81d30433 RDI: 0000000000000005 [ 49.678106] RBP: ffff88809f51f850 R08: ffff88809f428640 R09: ffffed101532476d [ 49.685379] R10: ffffed101532476c R11: ffff8880a9923b63 R12: 0000000000000000 [ 49.692651] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 49.699921] ? kernfs_get.part.0+0x4f/0x90 [ 49.704141] ? kernfs_get.part.0+0x73/0x90 [ 49.708365] kernfs_new_node+0xb8/0x130 [ 49.712331] kernfs_create_dir_ns+0x52/0x160 [ 49.716727] sysfs_create_dir_ns+0x131/0x2a0 [ 49.721121] ? sysfs_create_mount_point+0xa0/0xa0 [ 49.725955] ? class_dir_child_ns_type+0xd/0x60 [ 49.730613] kobject_add_internal.cold+0xe5/0x5d4 [ 49.735802] kobject_add+0x150/0x1c0 [ 49.739501] ? kset_create_and_add+0x1a0/0x1a0 [ 49.744072] ? kasan_check_read+0x11/0x20 [ 49.748208] ? mutex_unlock+0xd/0x10 [ 49.751906] ? device_add+0x30f/0x1870 [ 49.755803] device_add+0x3d5/0x1870 [ 49.759506] ? device_initialize+0x440/0x440 [ 49.763912] ? get_device_parent.isra.0+0x570/0x570 [ 49.768920] hci_register_dev+0x2e8/0x860 [ 49.773081] __vhci_create_device+0x2d0/0x5a0 [ 49.777565] vhci_write+0x2d0/0x470 [ 49.781183] __vfs_write+0x613/0x8e0 [ 49.784880] ? kernel_read+0x120/0x120 [ 49.788753] ? common_file_perm+0x1d6/0x6f0 [ 49.793065] ? apparmor_file_permission+0x25/0x30 [ 49.797909] ? rw_verify_area+0x118/0x360 [ 49.802043] vfs_write+0x20c/0x580 [ 49.805569] ksys_write+0xea/0x1f0 [ 49.809112] ? __ia32_sys_read+0xb0/0xb0 [ 49.813189] ? do_syscall_64+0x26/0x610 [ 49.817149] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.822518] ? do_syscall_64+0x26/0x610 [ 49.826486] __x64_sys_write+0x73/0xb0 [ 49.830377] do_syscall_64+0x103/0x610 [ 49.834269] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.839441] RIP: 0033:0x457f29 [ 49.842621] Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.861509] RSP: 002b:00007f44d227bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 49.869202] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f29 [ 49.876456] RDX: 0000000000000002 RSI: 0000000020000000 RDI: 0000000000000004 [ 49.883717] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 49.890973] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f44d227c6d4 [ 49.898227] R13: 00000000004c759c R14: 00000000004dd1e8 R15: 00000000ffffffff [ 49.906481] Kernel Offset: disabled [ 49.910203] Rebooting in 86400 seconds..