Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.725862] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 27.733365] attempt to access beyond end of device [ 27.746327] loop0: rw=0, want=1125899906842626, limit=2048 [ 27.754727] ------------[ cut here ]------------ [ 27.759729] WARNING: CPU: 1 PID: 7955 at include/linux/backing-dev.h:335 account_page_dirtied+0x8df/0xbb0 [ 27.769432] Kernel panic - not syncing: panic_on_warn set ... [ 27.769432] [ 27.776791] CPU: 1 PID: 7955 Comm: syz-executor315 Not tainted 4.14.295-syzkaller #0 [ 27.784648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 27.793979] Call Trace: [ 27.796547] dump_stack+0x1b2/0x281 [ 27.800151] panic+0x1f9/0x42d [ 27.803394] ? add_taint.cold+0x16/0x16 [ 27.807352] ? account_page_dirtied+0x8df/0xbb0 [ 27.811999] ? account_page_dirtied+0x8df/0xbb0 [ 27.816645] __warn.cold+0x20/0x44 [ 27.820162] ? ist_end_non_atomic+0x10/0x10 [ 27.824460] ? account_page_dirtied+0x8df/0xbb0 [ 27.829107] report_bug+0x208/0x250 [ 27.832712] do_error_trap+0x195/0x2d0 [ 27.836576] ? math_error+0x2d0/0x2d0 [ 27.840355] ? nilfs_btree_insert+0x81/0x1860 [ 27.844824] ? nilfs_btree_broken_node_block+0x41/0x300 [ 27.850165] ? trace_hardirqs_on+0x10/0x10 [ 27.854389] ? trace_hardirqs_on+0x10/0x10 [ 27.858609] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.863440] invalid_op+0x1b/0x40 [ 27.866876] RIP: 0010:account_page_dirtied+0x8df/0xbb0 [ 27.872127] RSP: 0018:ffff8880b3567470 EFLAGS: 00010097 [ 27.877469] RAX: ffff8880b4d1c240 RBX: ffff8880af3c2c00 RCX: 1ffffffff127a5d4 [ 27.884718] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000086 [ 27.891965] RBP: ffff88808cf62b58 R08: ffffffff8ba5db4c R09: 0000000000001c4c [ 27.899209] R10: 0000000000000001 R11: ffff8880b4d1c240 R12: ffffea0002b020c0 [ 27.906549] R13: ffff88808cf629c8 R14: ffff88808cf629c8 R15: ffffea0002b020e0 [ 27.913818] __set_page_dirty+0x77/0x2a0 [ 27.917855] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.923284] mark_buffer_dirty+0x307/0x480 [ 27.927495] nilfs_btree_do_insert+0x293/0x3b0 [ 27.932061] nilfs_btree_insert+0xc5a/0x1860 [ 27.936448] ? nilfs_btree_lookup_contig+0x9d0/0x9d0 [ 27.941533] nilfs_bmap_insert+0x21b/0x380 [ 27.945746] ? nilfs_bmap_lookup_contig+0x170/0x170 [ 27.950746] nilfs_mdt_get_block+0x4a1/0xb90 [ 27.955135] ? nilfs_mdt_read_block+0x320/0x320 [ 27.959785] ? lock_downgrade+0x740/0x740 [ 27.963914] nilfs_palloc_get_block+0xb2/0x250 [ 27.968481] nilfs_palloc_get_entry_block+0x17d/0x230 [ 27.973652] nilfs_dat_prepare_alloc+0x57/0xa0 [ 27.978210] ? nilfs_bmap_find_target_in_group+0xe/0x170 [ 27.983637] nilfs_direct_insert+0x2db/0x390 [ 27.988028] ? nilfs_direct_delete+0x250/0x250 [ 27.992608] nilfs_bmap_insert+0x21b/0x380 [ 27.996830] ? nilfs_direct_last_key+0xc0/0xc0 [ 28.001391] ? nilfs_bmap_lookup_contig+0x170/0x170 [ 28.006389] ? nilfs_get_block+0x210/0x7a0 [ 28.010608] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.016048] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.021143] ? nilfs_transaction_begin+0x274/0xa00 [ 28.026067] nilfs_get_block+0x434/0x7a0 [ 28.030210] ? __nilfs_mark_inode_dirty+0x1d0/0x1d0 [ 28.035336] ? create_empty_buffers+0x282/0x470 [ 28.039988] ? do_raw_spin_unlock+0x164/0x220 [ 28.044461] ? _raw_spin_unlock+0x29/0x40 [ 28.048601] ? create_page_buffers+0xce/0x1c0 [ 28.053080] __block_write_begin_int+0x35c/0x11d0 [ 28.057909] ? __nilfs_mark_inode_dirty+0x1d0/0x1d0 [ 28.062925] ? add_to_page_cache_locked+0x40/0x40 [ 28.067758] ? alloc_pages_current+0x15d/0x260 [ 28.072326] ? __breadahead_gfp+0x150/0x150 [ 28.076638] ? pagecache_get_page+0x13c/0xab0 [ 28.081120] nilfs_make_empty+0x10c/0x770 [ 28.085255] ? nilfs_transaction_begin+0x274/0xa00 [ 28.090170] nilfs_mkdir+0x1ad/0x300 [ 28.093865] ? nilfs_unlink+0x190/0x190 [ 28.097815] ? nilfs_update_inode+0x1c0/0x1c0 [ 28.102303] ? security_inode_mkdir+0xca/0x100 [ 28.106869] vfs_mkdir+0x463/0x6e0 [ 28.110400] SyS_mkdirat+0x1fd/0x270 [ 28.114098] ? SyS_mknod+0x30/0x30 [ 28.117618] ? __do_page_fault+0x159/0xad0 [ 28.121839] ? do_syscall_64+0x4c/0x640 [ 28.125802] ? SyS_mknod+0x30/0x30 [ 28.129324] do_syscall_64+0x1d5/0x640 [ 28.133203] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.138370] RIP: 0033:0x7fca4495d469 [ 28.142068] RSP: 002b:00007ffdf4c10d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 [ 28.149755] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fca4495d469 [ 28.157005] RDX: 00000000000001ff RSI: 00000000200001c0 RDI: 0000000000000003 [ 28.164254] RBP: 0000000000000000 R08: 00007fca449cdec0 R09: 00007fca449cdec0 [ 28.171501] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdf4c10d70 [ 28.178749] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 28.186323] Kernel Offset: disabled [ 28.189989] Rebooting in 86400 seconds..