[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.46' (ECDSA) to the list of known hosts. syzkaller login: [ 43.464718][ T6877] IPVS: ftp: loaded support on port[0] = 21 executing program [ 46.651556][ T5] Bluetooth: hci0: command 0x0409 tx timeout [ 48.730409][ T5] Bluetooth: hci0: command 0x041b tx timeout [ 49.603192][ T6905] ------------[ cut here ]------------ [ 49.608969][ T6905] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 [ 49.618762][ T6905] WARNING: CPU: 0 PID: 6905 at lib/debugobjects.c:488 debug_object_assert_init+0x1fa/0x250 [ 49.628902][ T6905] Kernel panic - not syncing: panic_on_warn set ... [ 49.635481][ T6905] CPU: 0 PID: 6905 Comm: syz-executor339 Not tainted 5.8.0-rc7-syzkaller #0 [ 49.644149][ T6905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.656024][ T6905] Call Trace: [ 49.659326][ T6905] dump_stack+0x1f0/0x31e [ 49.663754][ T6905] panic+0x264/0x7a0 [ 49.667633][ T6905] ? __warn+0x102/0x250 [ 49.671981][ T6905] ? debug_object_assert_init+0x1fa/0x250 [ 49.677694][ T6905] ? debug_object_assert_init+0x1fa/0x250 [ 49.683399][ T6905] __warn+0x227/0x250 [ 49.687385][ T6905] ? debug_object_assert_init+0x1fa/0x250 [ 49.693118][ T6905] report_bug+0x1b1/0x2e0 [ 49.697710][ T6905] handle_bug+0x42/0x80 [ 49.701844][ T6905] exc_invalid_op+0x16/0x40 [ 49.706338][ T6905] asm_exc_invalid_op+0x12/0x20 [ 49.711183][ T6905] RIP: 0010:debug_object_assert_init+0x1fa/0x250 [ 49.717503][ T6905] Code: e8 bb ec 11 fe 4c 8b 45 00 48 c7 c7 ef b7 14 89 48 c7 c6 e9 b6 14 89 48 c7 c2 12 31 2c 89 31 c9 49 89 d9 31 c0 e8 16 9e a4 fd <0f> 0b ff 05 42 ca eb 05 48 83 c5 38 48 89 e8 48 c1 e8 03 42 80 3c [ 49.737097][ T6905] RSP: 0018:ffffc90001617828 EFLAGS: 00010046 [ 49.743145][ T6905] RAX: 2c9c060e329a9900 RBX: 0000000000000000 RCX: ffff8880932481c0 [ 49.751113][ T6905] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 49.759678][ T6905] RBP: ffffffff894edb20 R08: ffffffff815dd389 R09: ffffed1015d041c3 [ 49.767640][ T6905] R10: ffffed1015d041c3 R11: 0000000000000000 R12: dffffc0000000000 [ 49.775601][ T6905] R13: ffff888098c1e200 R14: 0000000000000002 R15: ffffffff8ba2bbf0 [ 49.783577][ T6905] ? vprintk_emit+0x339/0x3c0 [ 49.788766][ T6905] ? debug_object_assert_init+0x1fa/0x250 [ 49.794465][ T6905] del_timer+0x2f/0x340 [ 49.798616][ T6905] ? trace_lock_release+0x137/0x1a0 [ 49.803788][ T6905] ? trace_irq_disable_rcuidle+0x1f/0x1c0 [ 49.809521][ T6905] try_to_grab_pending+0xba/0x9f0 [ 49.814529][ T6905] ? lockdep_hardirqs_on_prepare+0x425/0x6e0 [ 49.820492][ T6905] cancel_delayed_work+0x37/0x2b0 [ 49.825494][ T6905] l2cap_chan_del+0x5bf/0x760 [ 49.830160][ T6905] l2cap_chan_close+0x7bf/0xae0 [ 49.834999][ T6905] l2cap_sock_shutdown+0x39f/0x700 [ 49.840092][ T6905] l2cap_sock_release+0x63/0x190 [ 49.845024][ T6905] sock_close+0xd8/0x260 [ 49.849243][ T6905] ? sock_mmap+0x90/0x90 [ 49.853469][ T6905] __fput+0x2f0/0x750 [ 49.857437][ T6905] task_work_run+0x137/0x1c0 [ 49.862029][ T6905] do_exit+0x601/0x1f80 [ 49.866179][ T6905] do_group_exit+0x161/0x2d0 [ 49.870746][ T6905] get_signal+0x139b/0x1d30 [ 49.875229][ T6905] ? l2cap_sock_connect+0x505/0x690 [ 49.880425][ T6905] do_signal+0x33/0x610 [ 49.884566][ T6905] ? __prepare_exit_to_usermode+0x81/0x1e0 [ 49.890378][ T6905] __prepare_exit_to_usermode+0xd7/0x1e0 [ 49.896029][ T6905] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.902204][ T6905] do_syscall_64+0x7f/0xe0 [ 49.906626][ T6905] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.912513][ T6905] RIP: 0033:0x446d69 [ 49.916417][ T6905] Code: Bad RIP value. [ 49.920472][ T6905] RSP: 002b:00007ffc62426d08 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 49.928964][ T6905] RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 0000000000446d69 [ 49.936950][ T6905] RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000004 [ 49.944913][ T6905] RBP: 00007ffc62426d40 R08: 0000000000000000 R09: 00000000000000ff [ 49.952889][ T6905] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000004 [ 49.960995][ T6905] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.970264][ T6905] Kernel Offset: disabled [ 49.975335][ T6905] Rebooting in 86400 seconds..