[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.245' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 30.194503] ------------[ cut here ]------------ [ 30.203984] kernel BUG at fs/ntfs/aops.c:207! [ 30.208963] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 30.214341] Modules linked in: [ 30.217536] CPU: 0 PID: 7967 Comm: syz-executor313 Not tainted 4.14.295-syzkaller #0 [ 30.225929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 30.235515] task: ffff88809889e540 task.stack: ffff888095878000 [ 30.242738] RIP: 0010:ntfs_readpage+0x150e/0x1ad0 [ 30.247557] RSP: 0018:ffff88809587f778 EFLAGS: 00010297 [ 30.253084] RAX: ffff88809889e540 RBX: dffffc0000000000 RCX: 0000000000000000 [ 30.260332] RDX: 0000000000000000 RSI: ffffea00023c2640 RDI: ffff88808e3cd790 [ 30.267583] RBP: ffff88808e3cd788 R08: 0000000000000000 R09: ffff88808e3cdc18 [ 30.274832] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 [ 30.282316] R13: ffff88808e3cd740 R14: ffff88808e3cda08 R15: ffffea00023c2640 [ 30.289581] FS: 0000555555608300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 30.297796] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.303834] CR2: 00007f27a6560000 CR3: 000000009c61f000 CR4: 00000000003406f0 [ 30.312457] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.320731] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.328251] Call Trace: [ 30.330849] ? __add_to_page_cache_locked+0x2ea/0x840 [ 30.336228] ? check_preemption_disabled+0x35/0x240 [ 30.341273] ? __lru_cache_add+0x178/0x250 [ 30.345610] ? ntfs_end_buffer_async_read+0x10a0/0x10a0 [ 30.351250] ? add_to_page_cache_lru+0x136/0x2b0 [ 30.356076] ? add_to_page_cache_locked+0x40/0x40 [ 30.360899] ? alloc_pages_current+0x15d/0x260 [ 30.365488] do_read_cache_page+0x38e/0xc10 [ 30.369794] ? ntfs_end_buffer_async_read+0x10a0/0x10a0 [ 30.375138] ? ntfs_attr_lookup+0xeca/0x1f30 [ 30.379813] map_mft_record+0x1ca/0xbe0 [ 30.383864] ntfs_read_locked_inode+0x1bf/0x51b0 [ 30.388610] ? ntfs_mapping_pairs_decompress+0x755/0xf60 [ 30.394045] ? kmem_cache_alloc+0x2f8/0x3c0 [ 30.398380] ntfs_read_inode_mount+0xafb/0x2060 [ 30.403098] ntfs_fill_super+0x9a6/0x7170 [ 30.407233] ? vsnprintf+0x260/0x1340 [ 30.411021] ? pointer+0x9e0/0x9e0 [ 30.414560] ? lock_downgrade+0x740/0x740 [ 30.418876] ? ntfs_big_inode_init_once+0x20/0x20 [ 30.424470] ? snprintf+0xa5/0xd0 [ 30.427963] ? vsprintf+0x30/0x30 [ 30.431404] ? ns_test_super+0x50/0x50 [ 30.435272] ? set_blocksize+0x125/0x380 [ 30.439317] mount_bdev+0x2b3/0x360 [ 30.443205] ? ntfs_big_inode_init_once+0x20/0x20 [ 30.448138] mount_fs+0x92/0x2a0 [ 30.451493] vfs_kern_mount.part.0+0x5b/0x470 [ 30.455972] do_mount+0xe65/0x2a30 [ 30.459492] ? copy_mount_string+0x40/0x40 [ 30.463704] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 30.468755] ? copy_mnt_ns+0xa30/0xa30 [ 30.472625] ? copy_mount_options+0x1fa/0x2f0 [ 30.477190] ? copy_mnt_ns+0xa30/0xa30 [ 30.481054] SyS_mount+0xa8/0x120 [ 30.484518] ? copy_mnt_ns+0xa30/0xa30 [ 30.488390] do_syscall_64+0x1d5/0x640 [ 30.492258] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.497430] RIP: 0033:0x7f27a64ce98a [ 30.501124] RSP: 002b:00007ffd96efb3e8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 30.509585] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f27a64ce98a [ 30.519297] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd96efb400 [ 30.527978] RBP: 00007ffd96efb400 R08: 00007ffd96efb440 R09: 00005555556082c0 [ 30.535408] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 30.544130] R13: 00007ffd96efb440 R14: 000000000000013a R15: 0000000020001f70 [ 30.555344] 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 [ 30.578323] RIP: ntfs_readpage+0x150e/0x1ad0 RSP: ffff88809587f778 [ 30.586967] ---[ end trace 831978e4029fac1d ]--- [ 30.592251] Kernel panic - not syncing: Fatal exception [ 30.600251] Kernel Offset: disabled [ 30.604971] Rebooting in 86400 seconds..