[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.92' (ECDSA) to the list of known hosts. syzkaller login: [ 36.448549] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 43.050660] ------------[ cut here ]------------ [ 43.055581] kernel BUG at fs/hfs/bnode.c:482! [ 43.061396] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 43.066754] Modules linked in: [ 43.069924] CPU: 0 PID: 8870 Comm: syz-executor255 Not tainted 4.14.301-syzkaller #0 [ 43.077777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 43.087115] task: ffff8880ab5d8200 task.stack: ffff8880937a8000 [ 43.093148] RIP: 0010:hfs_bnode_put+0x1cc/0x220 [ 43.097791] RSP: 0018:ffff8880937af590 EFLAGS: 00010297 [ 43.103216] RAX: ffff8880ab5d8200 RBX: ffff8880abb1a540 RCX: 0000000000000000 [ 43.110459] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880abca9600 [ 43.117708] RBP: ffff8880abca9600 R08: ffffffff8b9ad508 R09: 0000000000000003 [ 43.124952] R10: 0000000000000000 R11: ffff8880ab5d8200 R12: ffff8880abb1a540 [ 43.132195] R13: ffff8880abca9678 R14: ffff8880abca9600 R15: 00000000000000f8 [ 43.139444] FS: 00007f3bda92e700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 43.147648] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.153507] CR2: 00007f3bda92e718 CR3: 00000000af1de000 CR4: 00000000003406f0 [ 43.160766] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.168022] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.175278] Call Trace: [ 43.177868] hfs_bmap_alloc+0x422/0x530 [ 43.181822] ? hfs_bmap_reserve+0x370/0x370 [ 43.186121] ? memcpy+0x35/0x50 [ 43.189379] ? hfs_bnode_read+0xa8/0x260 [ 43.193415] hfs_bnode_split+0xad/0xcf0 [ 43.197362] ? hfs_bnode_read+0xa8/0x260 [ 43.201397] ? hfs_bnode_create+0x470/0x470 [ 43.205691] ? hfs_bnode_read+0x260/0x260 [ 43.209813] hfs_brec_insert+0x27c/0xa70 [ 43.213856] ? hfs_brec_keylen+0x350/0x350 [ 43.218063] ? hfs_bmap_reserve+0x23a/0x370 [ 43.222355] hfs_cat_create+0x3b1/0x920 [ 43.226305] ? hfs_cat_build_key+0x1a0/0x1a0 [ 43.230696] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 43.236127] ? _raw_spin_unlock+0x29/0x40 [ 43.240252] ? hfs_mark_mdb_dirty+0x166/0x1e0 [ 43.244723] ? hfs_new_inode+0x4b6/0xd20 [ 43.248757] hfs_create+0x63/0xe0 [ 43.252184] ? hfs_mkdir+0xe0/0xe0 [ 43.255700] lookup_open+0x77a/0x1750 [ 43.259476] ? vfs_mkdir+0x6e0/0x6e0 [ 43.263164] path_openat+0xe08/0x2970 [ 43.266939] ? path_lookupat+0x780/0x780 [ 43.270972] ? trace_hardirqs_on+0x10/0x10 [ 43.275184] do_filp_open+0x179/0x3c0 [ 43.278960] ? may_open_dev+0xe0/0xe0 [ 43.282736] ? lock_downgrade+0x740/0x740 [ 43.286855] ? do_raw_spin_unlock+0x164/0x220 [ 43.291322] ? _raw_spin_unlock+0x29/0x40 [ 43.295445] ? __alloc_fd+0x1be/0x490 [ 43.299223] do_sys_open+0x296/0x410 [ 43.302910] ? filp_open+0x60/0x60 [ 43.306429] ? _raw_spin_unlock_irq+0x5a/0x80 [ 43.310897] ? do_syscall_64+0x4c/0x640 [ 43.314841] ? SyS_open+0x30/0x30 [ 43.318297] do_syscall_64+0x1d5/0x640 [ 43.322162] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 43.327325] RIP: 0033:0x7f3be2d9b899 [ 43.331012] RSP: 002b:00007f3bda92e2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 43.338715] RAX: ffffffffffffffda RBX: 00007f3be2e207b0 RCX: 00007f3be2d9b899 [ 43.345958] RDX: 0000000000141842 RSI: 0000000020000380 RDI: 00000000ffffff9c [ 43.353203] RBP: 00007f3be2ded544 R08: 00007f3bda92e700 R09: 0000000000000000 [ 43.360447] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 43.367691] R13: f6f2cbf92df09e20 R14: 0031656c69662f2e R15: 00007f3be2e207b8 [ 43.374937] Code: 66 80 ff 48 89 ef e8 a4 f9 ff ff 48 8b 3c 24 e8 cb d4 4f 05 48 89 ef e8 83 67 00 00 48 89 ef e8 6b fb ff ff eb c5 e8 84 66 80 ff <0f> 0b 4c 89 ef e8 0a 27 aa ff e9 96 fe ff ff e8 70 27 aa ff e9 [ 43.394000] RIP: hfs_bnode_put+0x1cc/0x220 RSP: ffff8880937af590 [ 43.411580] ---[ end trace fd06b4e609583ba0 ]--- [ 43.416387] Kernel panic - not syncing: Fatal exception [ 43.421896] Kernel Offset: disabled [ 43.425501] Rebooting in 86400 seconds..