[  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 '10.128.15.210' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   32.631210] audit: type=1400 audit(1601217710.049:8): avc:  denied  { execmem } for  pid=6359 comm="syz-executor133" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   32.641746] ntfs: (device loop0): is_boot_sector_ntfs(): Invalid end of sector marker.
[   32.660631] ------------[ cut here ]------------
[   32.665400] kernel BUG at fs/ntfs/aops.c:207!
[   32.670068] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   32.675415] Modules linked in:
[   32.678711] CPU: 1 PID: 6359 Comm: syz-executor133 Not tainted 4.14.198-syzkaller #0
[   32.686572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.695904] task: ffff8880976c6180 task.stack: ffff888097910000
[   32.701964] RIP: 0010:ntfs_readpage+0x14c7/0x1a70
[   32.707296] RSP: 0018:ffff888097917780 EFLAGS: 00010297
[   32.712648] RAX: ffff8880976c6180 RBX: dffffc0000000000 RCX: 0000000000000000
[   32.719893] RDX: 0000000000000000 RSI: ffffea00020f13c0 RDI: ffff88808970b790
[   32.727136] RBP: ffff88808970b788 R08: 0000000000000000 R09: ffff88808970bc18
[   32.734378] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
[   32.741634] R13: ffff88808970b740 R14: ffff88808970ba08 R15: ffffea00020f13c0
[   32.748896] FS:  0000000001496880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
[   32.757113] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.762981] CR2: 000055bedd13dda8 CR3: 00000000a0e0c000 CR4: 00000000001406e0
[   32.771798] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.779049] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.786298] Call Trace:
[   32.788861]  ? __add_to_page_cache_locked+0x2ea/0x840
[   32.794083]  ? check_preemption_disabled+0x35/0x240
[   32.799113]  ? __lru_cache_add+0x178/0x250
[   32.803325]  ? ntfs_end_buffer_async_read+0x1040/0x1040
[   32.808677]  ? add_to_page_cache_lru+0x136/0x2b0
[   32.813421]  ? add_to_page_cache_locked+0x40/0x40
[   32.818238]  ? alloc_pages_current+0x15d/0x260
[   32.822793]  do_read_cache_page+0x38e/0xbb0
[   32.827098]  ? ntfs_end_buffer_async_read+0x1040/0x1040
[   32.832465]  ? ntfs_attr_lookup+0xed3/0x1f30
[   32.836849]  map_mft_record+0x1ca/0xbe0
[   32.840822]  ? _raw_spin_unlock+0x29/0x40
[   32.844947]  ntfs_read_locked_inode+0x1bf/0x5000
[   32.849685]  ? kmem_cache_alloc+0x2f8/0x3c0
[   32.853985]  ntfs_read_inode_mount+0xa89/0x1fb0
[   32.858634]  ntfs_fill_super+0x9a6/0x7170
[   32.862769]  ? vsnprintf+0x260/0x1340
[   32.866554]  ? pointer+0x9e0/0x9e0
[   32.870077]  ? lock_downgrade+0x740/0x740
[   32.874201]  ? ntfs_big_inode_init_once+0x20/0x20
[   32.879014]  ? snprintf+0xa5/0xd0
[   32.882451]  ? vsprintf+0x30/0x30
[   32.885877]  ? ns_test_super+0x50/0x50
[   32.889736]  ? set_blocksize+0x125/0x380
[   32.893777]  mount_bdev+0x2b3/0x360
[   32.897387]  ? ntfs_big_inode_init_once+0x20/0x20
[   32.902201]  mount_fs+0x92/0x2a0
[   32.905539]  vfs_kern_mount.part.0+0x5b/0x470
[   32.910005]  do_mount+0xe53/0x2a00
[   32.913517]  ? copy_mount_string+0x40/0x40
[   32.917723]  ? rcu_read_lock_sched_held+0x16c/0x1d0
[   32.922723]  ? copy_mnt_ns+0xa30/0xa30
[   32.926582]  ? copy_mount_options+0x1fa/0x2f0
[   32.931070]  ? copy_mnt_ns+0xa30/0xa30
[   32.934927]  SyS_mount+0xa8/0x120
[   32.938362]  ? copy_mnt_ns+0xa30/0xa30
[   32.942221]  do_syscall_64+0x1d5/0x640
[   32.946081]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   32.951250] RIP: 0033:0x446e9a
[   32.954410] RSP: 002b:00007ffe83f9d068 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5
[   32.962089] RAX: ffffffffffffffda RBX: 00007ffe83f9d0c0 RCX: 0000000000446e9a
[   32.969329] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe83f9d080
[   32.976580] RBP: 00007ffe83f9d080 R08: 00007ffe83f9d0c0 R09: 00007ffe00000015
[   32.983825] R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000008
[   32.991070] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
[   32.998332] Code: 89 04 00 00 49 83 be 88 fd ff ff 00 0f 85 3e f5 ff ff e8 5d 59 4c ff 49 8b 86 80 fd ff ff a8 08 0f 85 2a f5 ff ff e8 49 59 4c ff <0f> 0b e8 42 59 4c ff 48 8b 84 24 88 00 00 00 48 8d b8 c0 fd ff 
[   33.017375] RIP: ntfs_readpage+0x14c7/0x1a70 RSP: ffff888097917780
[   33.024253] ---[ end trace fc62237733bb3191 ]---
[   33.029040] Kernel panic - not syncing: Fatal exception
[   33.035787] Kernel Offset: disabled
[   33.039396] Rebooting in 86400 seconds..