[[0;32m OK [0m] Reached target Login Prompts.
[[0;32m OK [0m] Reached target Multi-User System.
[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.0.40' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 28.416286] kasan: CONFIG_KASAN_INLINE enabled
[ 28.420954] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 28.428501] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[ 28.434724] Modules linked in:
[ 28.437898] CPU: 1 PID: 7991 Comm: syz-executor204 Not tainted 4.14.276-syzkaller #0
[ 28.445818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 28.455151] task: ffff8880b4c1c2c0 task.stack: ffff888091c08000
[ 28.461188] RIP: 0010:rb_erase+0x29/0x1290
[ 28.465400] RSP: 0018:ffff888091c0fa68 EFLAGS: 00010292
[ 28.470740] RAX: dffffc0000000000 RBX: ffff888094cdf770 RCX: 1ffff11012381f27
[ 28.477985] RDX: 0000000000000001 RSI: ffffffff8bfafea0 RDI: 0000000000000008
[ 28.485239] RBP: 0000000000000000 R08: ffffffff8ba432cc R09: 0000000000001bda
[ 28.492488] R10: 0000000000000001 R11: ffff8880b4c1c2c0 R12: 0000000000000000
[ 28.499738] R13: dffffc0000000000 R14: ffff888094ce17f8 R15: ffffffff8bfafea0
[ 28.507010] FS: 0000555556995300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
[ 28.515223] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 28.521080] CR2: 00000000200000c0 CR3: 00000000b416a000 CR4: 00000000003406e0
[ 28.528347] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 28.535593] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 28.542838] Call Trace:
[ 28.545407] integrity_inode_free+0x119/0x300
[ 28.549887] security_inode_free+0x14/0x80
[ 28.554103] __destroy_inode+0x1e8/0x4d0
[ 28.558146] destroy_inode+0x49/0x110
[ 28.561924] iput+0x458/0x7e0
[ 28.565005] ? ext4_mark_dquot_dirty+0x190/0x190
[ 28.569735] ext4_ioctl+0x12e1/0x3800
[ 28.573513] ? ext4_ioctl_check_immutable+0x1c0/0x1c0
[ 28.578681] ? putname+0xcd/0x110
[ 28.582113] ? do_sys_open+0x203/0x410
[ 28.585980] ? do_syscall_64+0x1d5/0x640
[ 28.590018] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 28.595359] ? path_lookupat+0x780/0x780
[ 28.599397] ? debug_check_no_obj_freed+0x2c0/0x680
[ 28.604389] ? lock_acquire+0x170/0x3f0
[ 28.608340] ? lock_downgrade+0x740/0x740
[ 28.612463] ? _raw_spin_unlock_irqrestore+0x66/0xe0
[ 28.617544] ? debug_check_no_obj_freed+0x2c0/0x680
[ 28.622538] ? ext4_ioctl_check_immutable+0x1c0/0x1c0
[ 28.627702] do_vfs_ioctl+0x75a/0xff0
[ 28.631479] ? rcu_lockdep_current_cpu_online+0xed/0x140
[ 28.636904] ? ioctl_preallocate+0x1a0/0x1a0
[ 28.641287] ? kmem_cache_free+0x23a/0x2b0
[ 28.645494] ? putname+0xcd/0x110
[ 28.648925] ? do_sys_open+0x208/0x410
[ 28.652787] ? filp_open+0x60/0x60
[ 28.656301] ? security_file_ioctl+0x83/0xb0
[ 28.660681] SyS_ioctl+0x7f/0xb0
[ 28.664021] ? do_vfs_ioctl+0xff0/0xff0
[ 28.667971] do_syscall_64+0x1d5/0x640
[ 28.671833] entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 28.676999] RIP: 0033:0x7fc2603b9019
[ 28.680685] RSP: 002b:00007fffaec15db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 28.688365] RAX: ffffffffffffffda RBX: 652e79726f6d656d RCX: 00007fc2603b9019
[ 28.695608] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000004
[ 28.702853] RBP: 00007fc26037d000 R08: 0000000000000000 R09: 0000000000000000
[ 28.710112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc26037d090
[ 28.717356] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 28.724609] Code: ff ff 48 b8 00 00 00 00 00 fc ff df 41 57 49 89 f7 41 56 41 55 41 54 49 89 fc 48 83 c7 08 48 89 fa 55 48 c1 ea 03 53 48 83 ec 18 <80> 3c 02 00 0f 85 f2 0c 00 00 49 8d 7c 24 10 4d 8b 74 24 08 48
[ 28.743671] RIP: rb_erase+0x29/0x1290 RSP: ffff888091c0fa68
[ 28.749429] ---[ end trace 22a6acb08c02d3f7 ]---
[ 28.754173] Kernel panic - not syncing: Fatal exception
[ 28.759681] Kernel Offset: disabled
[ 28.763291] Rebooting in 86400 seconds..