[info] Using makefile-style concurrent boot in runlevel 2. [ 52.437752][ T26] audit: type=1800 audit(1566874831.793:21): pid=9109 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 52.472809][ T26] audit: type=1800 audit(1566874831.793:22): pid=9109 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 '10.128.0.2' (ECDSA) to the list of known hosts. executing program executing program executing program syzkaller login: [ 67.638060][ T9261] ------------[ cut here ]------------ [ 67.643549][ T9261] ODEBUG: free active (active state 0) object type: timer_list hint: rfcomm_dlc_timeout+0x0/0x80 [ 67.654145][ T9261] WARNING: CPU: 1 PID: 9261 at lib/debugobjects.c:484 debug_check_no_obj_freed+0x464/0x5b0 [ 67.664172][ T9261] Kernel panic - not syncing: panic_on_warn set ... [ 67.670744][ T9261] CPU: 1 PID: 9261 Comm: syz-executor801 Not tainted 5.3.0-rc6 #93 [ 67.678830][ T9261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.688860][ T9261] Call Trace: [ 67.692234][ T9261] dump_stack+0x1d8/0x2f8 [ 67.696538][ T9261] panic+0x25c/0x799 [ 67.700404][ T9261] ? __warn+0x126/0x230 [ 67.704876][ T9261] __warn+0x22f/0x230 [ 67.708846][ T9261] ? debug_check_no_obj_freed+0x464/0x5b0 [ 67.714538][ T9261] report_bug+0x190/0x290 [ 67.718837][ T9261] ? debug_check_no_obj_freed+0x464/0x5b0 [ 67.724538][ T9261] do_error_trap+0xd7/0x440 [ 67.729078][ T9261] do_invalid_op+0x36/0x40 [ 67.733470][ T9261] ? debug_check_no_obj_freed+0x464/0x5b0 [ 67.739171][ T9261] invalid_op+0x23/0x30 [ 67.743311][ T9261] RIP: 0010:debug_check_no_obj_freed+0x464/0x5b0 [ 67.749617][ T9261] Code: 08 48 89 df e8 4d aa 58 fe 4c 8b 03 48 c7 c7 9d 59 45 88 48 c7 c6 e4 7b 43 88 4c 89 e2 44 89 f9 4d 89 e9 31 c0 e8 cc 9a f2 fd <0f> 0b 4c 8b 6d a8 ff 05 a4 52 6a 05 49 83 c5 30 4c 89 e8 48 c1 e8 [ 67.769201][ T9261] RSP: 0018:ffff888089c8fb78 EFLAGS: 00010046 [ 67.775246][ T9261] RAX: 2c4fd74c16202500 RBX: ffffffff888da040 RCX: ffff8880a033c300 [ 67.783192][ T9261] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 67.791144][ T9261] RBP: ffff888089c8fc10 R08: ffffffff815cf7d4 R09: ffffed1015d640d2 [ 67.799086][ T9261] R10: ffffed1015d640d2 R11: 0000000000000000 R12: ffffffff884ee8b1 [ 67.807027][ T9261] R13: ffffffff86c3f090 R14: dffffc0000000000 R15: 0000000000000000 [ 67.814993][ T9261] ? rfcomm_dlc_alloc+0x3a0/0x3a0 [ 67.820001][ T9261] ? vprintk_emit+0x2d4/0x3a0 [ 67.824653][ T9261] ? debug_check_no_obj_freed+0x464/0x5b0 [ 67.830353][ T9261] ? rfcomm_dlc_free+0x1e/0x30 [ 67.835097][ T9261] kfree+0x107/0x200 [ 67.838966][ T9261] rfcomm_dlc_free+0x1e/0x30 [ 67.843534][ T9261] rfcomm_dev_ioctl+0xb9a/0x1c70 [ 67.848444][ T9261] ? __local_bh_enable_ip+0x13a/0x240 [ 67.853919][ T9261] rfcomm_sock_ioctl+0x7e/0xa0 [ 67.858656][ T9261] sock_do_ioctl+0x7c/0x260 [ 67.863127][ T9261] sock_ioctl+0x461/0x680 [ 67.867429][ T9261] ? sock_poll+0x310/0x310 [ 67.871828][ T9261] do_vfs_ioctl+0x744/0x1730 [ 67.876390][ T9261] ? assoc_array_gc+0x13b1/0x1440 [ 67.881395][ T9261] ? tomoyo_file_ioctl+0x23/0x30 [ 67.886305][ T9261] ? security_file_ioctl+0xa1/0xd0 [ 67.891447][ T9261] __x64_sys_ioctl+0xe3/0x120 [ 67.896109][ T9261] do_syscall_64+0xfe/0x140 [ 67.900601][ T9261] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 67.906466][ T9261] RIP: 0033:0x441229 [ 67.910356][ T9261] 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 [ 67.929953][ T9261] RSP: 002b:00007ffeaa0d9698 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 67.938344][ T9261] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441229 [ 67.946289][ T9261] RDX: 0000000020000100 RSI: 00000000400452c8 RDI: 0000000000000004 [ 67.954232][ T9261] RBP: 000000000001081e R08: 00000000004002c8 R09: 00000000004002c8 [ 67.962183][ T9261] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402050 [ 67.970127][ T9261] R13: 00000000004020e0 R14: 0000000000000000 R15: 0000000000000000 [ 67.979139][ T9261] Kernel Offset: disabled [ 67.983454][ T9261] Rebooting in 86400 seconds..