[ 42.861027][ T26] audit: type=1800 audit(1552744892.673:30): pid=7939 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 47.366393][ T26] kauditd_printk_skb: 4 callbacks suppressed [ 47.366408][ T26] audit: type=1400 audit(1552744897.213:35): avc: denied { map } for pid=8116 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.2' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program [ 93.671948][ T26] audit: type=1400 audit(1552744943.513:36): avc: denied { map } for pid=8128 comm="syz-executor070" path="/root/syz-executor070488979" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program [ 93.723303][ T8139] kobject_add_internal failed for rfkill7 (error: -2 parent: hci3) [ 93.731532][ T8136] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 93.761102][ T8136] Bluetooth: Can't register HCI device executing program executing program executing program executing program [ 93.770331][ T8139] ------------[ cut here ]------------ [ 93.791283][ T8139] sysfs group 'power' not found for kobject 'hci3' [ 93.819266][ T8139] WARNING: CPU: 1 PID: 8139 at fs/sysfs/group.c:254 sysfs_remove_group+0x15b/0x1b0 [ 93.824958][ T8152] kobject: 'bluetooth' (00000000f4706c5c): kobject_add_internal: parent: 'virtual', set: '(null)' [ 93.828868][ T8139] Kernel panic - not syncing: panic_on_warn set ... [ 93.828884][ T8139] CPU: 1 PID: 8139 Comm: syz-executor070 Not tainted 5.0.0+ #25 [ 93.828892][ T8139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.828897][ T8139] Call Trace: [ 93.828919][ T8139] dump_stack+0x172/0x1f0 [ 93.828945][ T8139] ? sysfs_remove_group+0x120/0x1b0 [ 93.828962][ T8139] panic+0x2cb/0x65c [ 93.828977][ T8139] ? __warn_printk+0xf3/0xf3 [ 93.829001][ T8139] ? sysfs_remove_group+0x15b/0x1b0 [ 93.849975][ T8152] kobject: 'hci1' (000000002194587b): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 93.854294][ T8139] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.854315][ T8139] ? __warn.cold+0x5/0x45 [ 93.854328][ T8139] ? __warn+0xe8/0x1d0 [ 93.854348][ T8139] ? sysfs_remove_group+0x15b/0x1b0 [ 93.854369][ T8139] __warn.cold+0x20/0x45 [ 93.854393][ T8139] ? sysfs_remove_group+0x15b/0x1b0 [ 93.867050][ T8152] kobject: 'hci1' (000000002194587b): kobject_uevent_env [ 93.874880][ T8139] report_bug+0x263/0x2b0 [ 93.874901][ T8139] do_error_trap+0x11b/0x200 [ 93.874925][ T8139] do_invalid_op+0x37/0x50 [ 93.874938][ T8139] ? sysfs_remove_group+0x15b/0x1b0 [ 93.874966][ T8139] invalid_op+0x14/0x20 [ 93.874987][ T8139] RIP: 0010:sysfs_remove_group+0x15b/0x1b0 [ 93.880079][ T8152] kobject: 'hci1' (000000002194587b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 93.885004][ T8139] Code: 48 89 d9 49 8b 55 00 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 60 f8 77 87 e8 03 d7 6c ff <0f> 0b eb 92 e8 1c 17 d2 ff e9 d0 fe ff ff 48 89 df e8 0f 17 d2 ff [ 93.885013][ T8139] RSP: 0018:ffff8880867dfc58 EFLAGS: 00010282 [ 93.885031][ T8139] RAX: 0000000000000000 RBX: ffffffff87bd7c80 RCX: 0000000000000000 [ 93.885048][ T8139] RDX: 0000000000000000 RSI: ffffffff815ad706 RDI: ffffed1010cfbf7d [ 93.885065][ T8139] RBP: ffff8880867dfc80 R08: ffff888092dfa440 R09: ffffed1015d25011 [ 93.885074][ T8139] R10: ffffed1015d25010 R11: ffff8880ae928087 R12: 0000000000000000 [ 93.885082][ T8139] R13: ffff88808e28e850 R14: ffffffff87bd8220 R15: ffffffff84f35d80 [ 93.885103][ T8139] ? vhci_close_dev+0x50/0x50 [ 93.885133][ T8139] ? vprintk_func+0x86/0x189 [ 93.894406][ T8152] kobject: 'rfkill15' (000000005f3c9de8): kobject_add_internal: parent: 'hci1', set: 'devices' [ 93.894928][ T8139] ? sysfs_remove_group+0x15b/0x1b0 [ 93.900536][ T8152] kobject: 'rfkill15' (000000005f3c9de8): kobject_uevent_env [ 93.911357][ T8139] dpm_sysfs_remove+0xa6/0xc0 [ 93.911375][ T8139] device_del+0x184/0xc40 [ 93.911397][ T8139] ? __device_links_no_driver+0x250/0x250 [ 93.911412][ T8139] ? kasan_check_write+0x14/0x20 [ 93.911427][ T8139] ? do_raw_read_unlock+0x3f/0x70 [ 93.911443][ T8139] ? _raw_read_unlock+0x2d/0x50 [ 93.911459][ T8139] ? vhci_close_dev+0x50/0x50 [ 93.911474][ T8139] hci_unregister_dev+0x2c6/0x820 [ 93.911494][ T8139] ? vhci_close_dev+0x50/0x50 [ 93.918702][ T8152] kobject: 'rfkill15' (000000005f3c9de8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill15' [ 93.922187][ T8139] vhci_release+0x76/0xf0 [ 93.922208][ T8139] __fput+0x2e5/0x8d0 [ 93.922229][ T8139] ____fput+0x16/0x20 [ 93.922249][ T8139] task_work_run+0x14a/0x1c0 [ 93.931802][ T8152] kobject: 'rfkill15' (000000005f3c9de8): kobject_uevent_env [ 93.935841][ T8139] exit_to_usermode_loop+0x273/0x2c0 [ 93.935860][ T8139] do_syscall_64+0x52d/0x610 [ 93.935879][ T8139] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.935890][ T8139] RIP: 0033:0x400f70 [ 93.935904][ T8139] Code: 01 f0 ff ff 0f 83 20 0c 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 5d 17 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 f4 0b 00 00 c3 48 83 ec 08 e8 5a 01 00 00 [ 93.935919][ T8139] RSP: 002b:00007fff1c616d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 93.942886][ T8152] kobject: 'rfkill15' (000000005f3c9de8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill15' [ 93.948180][ T8139] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000400f70 [ 93.948189][ T8139] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 93.948197][ T8139] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 93.948206][ T8139] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401ff0 [ 93.948214][ T8139] R13: 0000000000402080 R14: 0000000000000000 R15: 0000000000000000 [ 93.953295][ T8139] Kernel Offset: disabled [ 94.272364][ T8139] Rebooting in 86400 seconds..