[info] Using makefile-style concurrent boot in runlevel 2. [ 55.359530][ T24] audit: type=1800 audit(1565803560.116:21): pid=9195 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 55.392829][ T24] audit: type=1800 audit(1565803560.116:22): pid=9195 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 '10.128.0.240' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 71.409683][ T9347] ------------[ cut here ]------------ [ 71.415626][ T9347] ODEBUG: free active (active state 0) object type: timer_list hint: rfcomm_dlc_timeout+0x0/0x80 [ 71.426338][ T9347] WARNING: CPU: 0 PID: 9347 at lib/debugobjects.c:484 debug_check_no_obj_freed+0x464/0x5b0 [ 71.436613][ T9347] Kernel panic - not syncing: panic_on_warn set ... [ 71.443296][ T9347] CPU: 0 PID: 9347 Comm: syz-executor212 Not tainted 5.3.0-rc4+ #74 [ 71.451373][ T9347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.461726][ T9347] Call Trace: [ 71.465101][ T9347] dump_stack+0x1d8/0x2f8 [ 71.469533][ T9347] panic+0x25c/0x799 [ 71.473762][ T9347] ? __warn+0x126/0x230 [ 71.478359][ T9347] __warn+0x22f/0x230 [ 71.482580][ T9347] ? debug_check_no_obj_freed+0x464/0x5b0 [ 71.488732][ T9347] report_bug+0x190/0x290 [ 71.493160][ T9347] ? debug_check_no_obj_freed+0x464/0x5b0 [ 71.498863][ T9347] do_error_trap+0xd7/0x440 [ 71.503528][ T9347] do_invalid_op+0x36/0x40 [ 71.507933][ T9347] ? debug_check_no_obj_freed+0x464/0x5b0 [ 71.513867][ T9347] invalid_op+0x23/0x30 [ 71.518002][ T9347] RIP: 0010:debug_check_no_obj_freed+0x464/0x5b0 [ 71.524678][ T9347] Code: 08 48 89 df e8 5d bd 58 fe 4c 8b 03 48 c7 c7 3d 54 45 88 48 c7 c6 84 76 43 88 4c 89 e2 44 89 f9 4d 89 e9 31 c0 e8 1c aa f2 fd <0f> 0b 4c 8b 6d a8 ff 05 74 64 6a 05 49 83 c5 30 4c 89 e8 48 c1 e8 [ 71.544597][ T9347] RSP: 0018:ffff888087707b78 EFLAGS: 00010046 [ 71.550800][ T9347] RAX: 6e30482b149ee900 RBX: ffffffff888da040 RCX: ffff888096c02400 [ 71.558954][ T9347] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 71.567016][ T9347] RBP: ffff888087707c10 R08: ffffffff815cf524 R09: ffffed1015d440d2 [ 71.574971][ T9347] R10: ffffed1015d440d2 R11: 0000000000000000 R12: ffffffff884ee31a [ 71.583085][ T9347] R13: ffffffff86c3b580 R14: dffffc0000000000 R15: 0000000000000000 [ 71.591178][ T9347] ? rfcomm_dlc_alloc+0x3a0/0x3a0 [ 71.596485][ T9347] ? vprintk_emit+0x2d4/0x3a0 [ 71.601290][ T9347] ? debug_check_no_obj_freed+0x464/0x5b0 [ 71.606994][ T9347] ? rfcomm_dlc_free+0x1e/0x30 [ 71.611952][ T9347] kfree+0x107/0x200 [ 71.615828][ T9347] rfcomm_dlc_free+0x1e/0x30 [ 71.620519][ T9347] rfcomm_dev_ioctl+0xb9a/0x1c70 [ 71.625555][ T9347] ? __local_bh_enable_ip+0x13a/0x240 [ 71.630911][ T9347] rfcomm_sock_ioctl+0x7e/0xa0 [ 71.635747][ T9347] sock_do_ioctl+0x7c/0x260 [ 71.640375][ T9347] sock_ioctl+0x463/0x690 [ 71.644746][ T9347] ? sock_poll+0x310/0x310 [ 71.649288][ T9347] do_vfs_ioctl+0x744/0x1730 [ 71.654085][ T9347] ? debug_smp_processor_id+0x1/0x20 [ 71.659389][ T9347] ? tomoyo_file_ioctl+0x23/0x30 [ 71.664321][ T9347] ? security_file_ioctl+0xa1/0xd0 [ 71.669561][ T9347] __x64_sys_ioctl+0xe3/0x120 [ 71.674219][ T9347] do_syscall_64+0xfe/0x140 [ 71.678790][ T9347] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 71.684657][ T9347] RIP: 0033:0x441229 [ 71.688666][ T9347] Code: e8 fc ab 02 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 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 71.708604][ T9347] RSP: 002b:00007ffe8eed41b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 71.717544][ T9347] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441229 [ 71.726074][ T9347] RDX: 0000000020000100 RSI: 00000000400452c8 RDI: 0000000000000004 [ 71.734341][ T9347] RBP: 00000000000116d4 R08: 00000000004002c8 R09: 00000000004002c8 [ 71.742517][ T9347] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402050 [ 71.750580][ T9347] R13: 00000000004020e0 R14: 0000000000000000 R15: 0000000000000000 [ 71.760194][ T9347] Kernel Offset: disabled [ 71.764649][ T9347] Rebooting in 86400 seconds..