[ OK ] Started Getty on tty2. [ OK ] Reached target Login Prompts. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.172' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.114592] ntfs: (device loop0): is_boot_sector_ntfs(): Invalid end of sector marker. [ 27.123961] ------------[ cut here ]------------ [ 27.128718] kernel BUG at fs/ntfs/aops.c:207! [ 27.134041] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 27.139395] Modules linked in: [ 27.142688] CPU: 0 PID: 7961 Comm: syz-executor195 Not tainted 4.14.293-syzkaller #0 [ 27.150549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 27.159897] task: ffff8880b50d4580 task.stack: ffff8880a2db8000 [ 27.165934] RIP: 0010:ntfs_readpage+0x150e/0x1ad0 [ 27.170744] RSP: 0018:ffff8880a2dbf778 EFLAGS: 00010297 [ 27.177641] RAX: ffff8880b50d4580 RBX: dffffc0000000000 RCX: 0000000000000000 [ 27.184887] RDX: 0000000000000000 RSI: ffffea00023bd440 RDI: ffff88808d762790 [ 27.192130] RBP: ffff88808d762788 R08: 0000000000000000 R09: ffff88808d762c18 [ 27.199382] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 [ 27.206751] R13: ffff88808d762740 R14: ffff88808d762a08 R15: ffffea00023bd440 [ 27.214016] FS: 0000555555701300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 27.222214] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.228066] CR2: 0000000020000100 CR3: 00000000b4e34000 CR4: 00000000003406f0 [ 27.235315] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.242562] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.249805] Call Trace: [ 27.252373] ? __add_to_page_cache_locked+0x2ea/0x840 [ 27.257538] ? check_preemption_disabled+0x35/0x240 [ 27.262542] ? __lru_cache_add+0x178/0x250 [ 27.266765] ? ntfs_end_buffer_async_read+0x10a0/0x10a0 [ 27.272191] ? add_to_page_cache_lru+0x136/0x2b0 [ 27.277007] ? add_to_page_cache_locked+0x40/0x40 [ 27.281825] ? alloc_pages_current+0x15d/0x260 [ 27.286379] do_read_cache_page+0x38e/0xc10 [ 27.290768] ? ntfs_end_buffer_async_read+0x10a0/0x10a0 [ 27.296975] ? ntfs_attr_lookup+0xeca/0x1f30 [ 27.301365] map_mft_record+0x1ca/0xbe0 [ 27.305327] ntfs_read_locked_inode+0x1bf/0x51b0 [ 27.310144] ? ntfs_mapping_pairs_decompress+0x755/0xf60 [ 27.315570] ? kmem_cache_alloc+0x2f8/0x3c0 [ 27.319864] ntfs_read_inode_mount+0xafb/0x2060 [ 27.324511] ntfs_fill_super+0x9a6/0x7170 [ 27.328640] ? vsnprintf+0x260/0x1340 [ 27.332413] ? pointer+0x9e0/0x9e0 [ 27.335931] ? lock_downgrade+0x740/0x740 [ 27.340053] ? ntfs_big_inode_init_once+0x20/0x20 [ 27.344885] ? snprintf+0xa5/0xd0 [ 27.348339] ? vsprintf+0x30/0x30 [ 27.351768] ? ns_test_super+0x50/0x50 [ 27.355642] ? set_blocksize+0x125/0x380 [ 27.359765] mount_bdev+0x2b3/0x360 [ 27.363368] ? ntfs_big_inode_init_once+0x20/0x20 [ 27.368184] mount_fs+0x92/0x2a0 [ 27.371611] vfs_kern_mount.part.0+0x5b/0x470 [ 27.376082] do_mount+0xe65/0x2a30 [ 27.379597] ? do_raw_spin_unlock+0x164/0x220 [ 27.384079] ? copy_mount_string+0x40/0x40 [ 27.388313] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.393300] ? copy_mnt_ns+0xa30/0xa30 [ 27.397160] ? copy_mount_options+0x1fa/0x2f0 [ 27.401628] ? copy_mnt_ns+0xa30/0xa30 [ 27.405488] SyS_mount+0xa8/0x120 [ 27.408913] ? copy_mnt_ns+0xa30/0xa30 [ 27.412772] do_syscall_64+0x1d5/0x640 [ 27.416634] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.421797] RIP: 0033:0x7f55b78b334a [ 27.425478] RSP: 002b:00007ffcf3a4fb48 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 27.433156] RAX: ffffffffffffffda RBX: 00007ffcf3a4fba0 RCX: 00007f55b78b334a [ 27.440398] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffcf3a4fb60 [ 27.447639] RBP: 00007ffcf3a4fb60 R08: 00007ffcf3a4fba0 R09: 0000000000000000 [ 27.454881] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000200002c0 [ 27.462134] R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000008 [ 27.469374] Code: d1 04 00 00 49 83 be 88 fd ff ff 00 0f 85 f7 f4 ff ff e8 e6 37 45 ff 49 8b 86 80 fd ff ff a8 08 0f 85 e3 f4 ff ff e8 d2 37 45 ff <0f> 0b e8 cb 37 45 ff 48 8b 84 24 88 00 00 00 48 8d b8 c0 fd ff [ 27.489195] RIP: ntfs_readpage+0x150e/0x1ad0 RSP: ffff8880a2dbf778 [ 27.505772] ---[ end trace aaf4ab896686d6be ]--- [ 27.510533] Kernel panic - not syncing: Fatal exception [ 27.516067] Kernel Offset: disabled [ 27.519673] Rebooting in 86400 seconds..