[ 35.772069][ T26] audit: type=1800 audit(1550581393.078:27): pid=7347 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 35.805565][ T26] audit: type=1800 audit(1550581393.168:28): pid=7347 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. [ 36.514193][ T26] audit: type=1800 audit(1550581393.878:29): pid=7347 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 [ 36.538015][ T26] audit: type=1800 audit(1550581393.878:30): pid=7347 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 '10.128.0.211' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 125.024161][ T7517] WARNING: CPU: 1 PID: 7517 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 125.024192][ T7519] kobject: 'hci1' (000000006e5ce340): kobject_cleanup, parent (null) [ 125.033249][ T7517] Kernel panic - not syncing: panic_on_warn set ... [ 125.033264][ T7517] CPU: 1 PID: 7517 Comm: syz-executor502 Not tainted 5.0.0-rc7-next-20190219 #38 [ 125.033272][ T7517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 125.033277][ T7517] Call Trace: executing program [ 125.033295][ T7517] dump_stack+0x172/0x1f0 [ 125.033312][ T7517] ? kernfs_unlink_sibling+0x130/0x170 [ 125.033339][ T7517] panic+0x2cb/0x65c [ 125.056557][ T7519] kobject: 'hci1' (000000006e5ce340): calling ktype release [ 125.057916][ T7517] ? __warn_printk+0xf3/0xf3 [ 125.057936][ T7517] ? kernfs_get.part.0+0x73/0x90 [ 125.057954][ T7517] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 125.068096][ T7519] kobject: 'hci1': free name [ 125.071247][ T7517] ? __warn.cold+0x5/0x45 [ 125.071261][ T7517] ? __warn+0xe8/0x1d0 [ 125.071279][ T7517] ? kernfs_get.part.0+0x73/0x90 [ 125.071294][ T7517] __warn.cold+0x20/0x45 [ 125.071312][ T7517] ? kernfs_get.part.0+0x73/0x90 [ 125.135077][ T7517] report_bug+0x263/0x2b0 [ 125.139386][ T7517] do_error_trap+0x11b/0x200 [ 125.143954][ T7517] do_invalid_op+0x37/0x50 [ 125.148345][ T7517] ? kernfs_get.part.0+0x73/0x90 [ 125.153261][ T7517] invalid_op+0x14/0x20 [ 125.157403][ T7517] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 125.163022][ T7517] Code: e6 e8 01 32 9b ff 45 85 e4 74 1a e8 77 30 9b ff be 04 00 00 00 48 89 df e8 aa d8 d2 ff f0 ff 03 5b 41 5c 5d c3 e8 5d 30 9b ff <0f> 0b eb dd 48 89 df e8 a1 fe d2 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 125.182708][ T7517] RSP: 0018:ffff88808c14f260 EFLAGS: 00010293 [ 125.188762][ T7517] RAX: ffff888094b68200 RBX: ffff8880a81437e0 RCX: ffffffff81d5318f [ 125.196708][ T7517] RDX: 0000000000000000 RSI: ffffffff81d531b3 RDI: 0000000000000005 [ 125.204654][ T7517] RBP: ffff88808c14f270 R08: ffff888094b68200 R09: ffffed10150286fd [ 125.212697][ T7517] R10: ffffed10150286fc R11: ffff8880a81437e3 R12: 0000000000000000 [ 125.220656][ T7517] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 125.228626][ T7517] ? kernfs_get.part.0+0x4f/0x90 [ 125.233560][ T7517] ? kernfs_get.part.0+0x73/0x90 [ 125.238488][ T7517] kernfs_new_node+0xb8/0x130 [ 125.243148][ T7517] kernfs_create_dir_ns+0x52/0x160 [ 125.248254][ T7517] sysfs_create_dir_ns+0x131/0x2a0 [ 125.253344][ T7517] ? sysfs_create_mount_point+0xa0/0xa0 [ 125.258871][ T7517] ? class_dir_child_ns_type+0xd/0x60 [ 125.264222][ T7517] kobject_add_internal.cold+0xe5/0x5d4 [ 125.269750][ T7517] kobject_add+0x150/0x1c0 [ 125.274147][ T7517] ? kset_create_and_add+0x1a0/0x1a0 [ 125.279412][ T7517] ? kasan_check_read+0x11/0x20 [ 125.284240][ T7517] ? mutex_unlock+0xd/0x10 [ 125.288639][ T7517] ? device_add+0x30f/0x18a0 [ 125.293215][ T7517] device_add+0x3d5/0x18a0 [ 125.297674][ T7517] ? device_initialize+0x440/0x440 [ 125.302778][ T7517] ? get_device_parent.isra.0+0x570/0x570 [ 125.308479][ T7517] hci_register_dev+0x304/0x880 [ 125.313324][ T7517] __vhci_create_device+0x2d0/0x5a0 [ 125.318512][ T7517] vhci_write+0x2d0/0x470 [ 125.322825][ T7517] new_sync_write+0x4c7/0x760 [ 125.327478][ T7517] ? default_llseek+0x2e0/0x2e0 [ 125.332312][ T7517] ? copy_page_to_iter+0x47b/0xd00 [ 125.337403][ T7517] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 125.343621][ T7517] ? put_page+0xce/0x130 [ 125.347856][ T7517] __vfs_write+0xe4/0x110 [ 125.352265][ T7517] __kernel_write+0x110/0x3b0 [ 125.356930][ T7517] write_pipe_buf+0x15d/0x1f0 [ 125.361582][ T7517] ? aa_file_perm+0x432/0xeb0 [ 125.366240][ T7517] ? do_splice_direct+0x2a0/0x2a0 [ 125.371245][ T7517] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 125.377466][ T7517] ? splice_from_pipe_next.part.0+0x255/0x2f0 [ 125.383518][ T7517] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 125.389745][ T7517] __splice_from_pipe+0x395/0x7d0 [ 125.394747][ T7517] ? do_splice_direct+0x2a0/0x2a0 [ 125.399808][ T7517] ? do_splice_direct+0x2a0/0x2a0 [ 125.404820][ T7517] splice_from_pipe+0x108/0x170 [ 125.409648][ T7517] ? splice_shrink_spd+0xd0/0xd0 [ 125.414583][ T7517] default_file_splice_write+0x3c/0x90 [ 125.420037][ T7517] ? generic_splice_sendpage+0x50/0x50 [ 125.425522][ T7517] direct_splice_actor+0x126/0x1a0 [ 125.430669][ T7517] splice_direct_to_actor+0x369/0x970 [ 125.436029][ T7517] ? generic_pipe_buf_nosteal+0x10/0x10 [ 125.441559][ T7517] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 125.447776][ T7517] ? do_splice_to+0x190/0x190 [ 125.452436][ T7517] ? rw_verify_area+0x118/0x360 [ 125.457270][ T7517] do_splice_direct+0x1da/0x2a0 [ 125.462105][ T7517] ? splice_direct_to_actor+0x970/0x970 [ 125.467716][ T7517] ? rw_verify_area+0x118/0x360 [ 125.472745][ T7517] do_sendfile+0x597/0xd00 [ 125.477148][ T7517] ? do_compat_pwritev64+0x1c0/0x1c0 [ 125.482525][ T7517] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 125.488760][ T7517] ? _copy_from_user+0xdd/0x150 [ 125.493624][ T7517] __x64_sys_sendfile64+0x15a/0x220 [ 125.498823][ T7517] ? __ia32_sys_sendfile+0x230/0x230 [ 125.504091][ T7517] ? do_syscall_64+0x26/0x610 [ 125.508831][ T7517] ? lockdep_hardirqs_on+0x418/0x5d0 [ 125.514116][ T7517] ? trace_hardirqs_on+0x67/0x230 [ 125.519130][ T7517] do_syscall_64+0x103/0x610 [ 125.523713][ T7517] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 125.529581][ T7517] RIP: 0033:0x440ee9 [ 125.533477][ T7517] Code: e8 ac e8 ff ff 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 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 125.553084][ T7517] RSP: 002b:00007fff845ae498 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 125.561585][ T7517] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440ee9 [ 125.569612][ T7517] RDX: 0000000020000000 RSI: 0000000000000004 RDI: 0000000000000003 [ 125.577663][ T7517] RBP: 000000000001e7c6 R08: 00000000004002c8 R09: 00000000004002c8 [ 125.585630][ T7517] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000401d80 [ 125.593587][ T7517] R13: 0000000000401e10 R14: 0000000000000000 R15: 0000000000000000 [ 125.602971][ T7517] Kernel Offset: disabled [ 125.607378][ T7517] Rebooting in 86400 seconds..