INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.900458] REISERFS (device loop0): found reiserfs format "3.5" with non-standard journal [ 37.909112] REISERFS (device loop0): using ordered data mode [ 37.915051] reiserfs: using flush barriers [ 37.919863] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 37.935517] REISERFS (device loop0): checking transaction log (loop0) [ 37.971458] REISERFS (device loop0): Using r5 hash to sort names [ 37.977884] REISERFS (device loop0): using 3.5.x disk format [ 37.984558] WARNING: CPU: 1 PID: 4507 at fs/inode.c:962 unlock_new_inode+0x107/0x130 [ 37.992594] Kernel panic - not syncing: panic_on_warn set ... [ 37.992594] [ 37.999944] CPU: 1 PID: 4507 Comm: syzkaller359861 Not tainted 4.17.0-rc1+ #8 [ 38.007199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.016531] Call Trace: [ 38.019111] dump_stack+0x1b9/0x294 [ 38.022716] ? dump_stack_print_info.cold.2+0x52/0x52 [ 38.027886] ? unlock_new_inode+0xb0/0x130 [ 38.032098] panic+0x22f/0x4de [ 38.035268] ? add_taint.cold.5+0x16/0x16 [ 38.039401] ? __warn.cold.8+0x148/0x1b3 [ 38.043438] ? __warn.cold.8+0x117/0x1b3 [ 38.047479] ? unlock_new_inode+0x107/0x130 [ 38.051779] __warn.cold.8+0x163/0x1b3 [ 38.055642] ? unlock_new_inode+0x107/0x130 [ 38.060029] report_bug+0x252/0x2d0 [ 38.063635] do_error_trap+0x1de/0x490 [ 38.067504] ? math_error+0x420/0x420 [ 38.071297] ? lock_acquire+0x1dc/0x520 [ 38.075252] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.080078] do_invalid_op+0x1b/0x20 [ 38.083808] invalid_op+0x14/0x20 [ 38.087239] RIP: 0010:unlock_new_inode+0x107/0x130 [ 38.092177] RSP: 0018:ffff8801ac0670b8 EFLAGS: 00010293 [ 38.097516] RAX: ffff8801d02b0040 RBX: ffff8801c4661780 RCX: ffffffff81c6eb00 [ 38.104763] RDX: 0000000000000000 RSI: ffffffff81c6eb57 RDI: 0000000000000007 [ 38.112018] RBP: ffff8801ac0670e0 R08: ffff8801d02b0040 R09: ffffed00388cc301 [ 38.119269] R10: ffffed00388cc301 R11: ffff8801c466180b R12: 0000000000000000 [ 38.126525] R13: ffff8801c4661858 R14: ffff8801c4661808 R15: 0000000000000000 [ 38.133781] ? unlock_new_inode+0xb0/0x130 [ 38.137997] ? unlock_new_inode+0x107/0x130 [ 38.142297] ? unlock_new_inode+0x107/0x130 [ 38.146597] reiserfs_new_inode+0x643/0x32f0 [ 38.150987] ? reiserfs_fh_to_parent+0x1b0/0x1b0 [ 38.155721] ? mutex_unlock+0xd/0x10 [ 38.159413] ? do_journal_begin_r+0x685/0x1250 [ 38.163989] ? do_journal_end+0x5110/0x5110 [ 38.168295] ? kasan_check_read+0x11/0x20 [ 38.172423] ? rcu_is_watching+0x85/0x140 [ 38.176555] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 38.181737] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.187255] ? security_old_inode_init_security+0xf9/0x130 [ 38.192870] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.198388] reiserfs_mkdir+0x4af/0x8b0 [ 38.202343] ? reiserfs_mknod+0x640/0x640 [ 38.206471] ? lock_release+0xa10/0xa10 [ 38.210436] ? check_same_owner+0x320/0x320 [ 38.214741] xattr_mkdir.constprop.15+0x135/0x1a0 [ 38.219574] ? listxattr_filler+0x4b0/0x4b0 [ 38.223879] ? down_read+0x1b0/0x1b0 [ 38.227571] ? lookup_one_len+0x163/0x210 [ 38.231703] reiserfs_xattr_init+0x53d/0xa59 [ 38.236091] ? reiserfs_lookup_privroot+0x250/0x250 [ 38.241086] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.246602] ? d_set_d_op+0x31d/0x410 [ 38.250384] reiserfs_fill_super+0x27a0/0x3900 [ 38.254948] ? finish_unfinished+0x14b0/0x14b0 [ 38.259508] ? format_decode+0x1a9/0xae0 [ 38.263549] ? set_precision+0xe0/0xe0 [ 38.267415] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 38.272586] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.278103] ? vsnprintf+0x242/0x1b40 [ 38.281886] ? pointer+0xa20/0xa20 [ 38.285412] ? snprintf+0xa5/0xd0 [ 38.288843] ? vsprintf+0x40/0x40 [ 38.292279] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.297799] mount_bdev+0x30c/0x3e0 [ 38.301403] ? finish_unfinished+0x14b0/0x14b0 [ 38.305970] get_super_block+0x34/0x40 [ 38.309838] mount_fs+0xae/0x328 [ 38.313192] vfs_kern_mount.part.34+0xd4/0x4d0 [ 38.317752] ? may_umount+0xb0/0xb0 [ 38.321368] ? _raw_read_unlock+0x22/0x30 [ 38.325491] ? __get_fs_type+0x97/0xc0 [ 38.329363] do_mount+0x564/0x3070 [ 38.332882] ? copy_mount_string+0x40/0x40 [ 38.337094] ? rcu_pm_notify+0xc0/0xc0 [ 38.340962] ? copy_mount_options+0x5f/0x380 [ 38.345346] ? rcu_read_lock_sched_held+0x108/0x120 [ 38.350339] ? kmem_cache_alloc_trace+0x616/0x780 [ 38.355163] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 38.360680] ? _copy_from_user+0xdf/0x150 [ 38.364810] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 38.370323] ? copy_mount_options+0x285/0x380 [ 38.374805] ksys_mount+0x12d/0x140 [ 38.378412] __x64_sys_mount+0xbe/0x150 [ 38.382366] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 38.387363] do_syscall_64+0x1b1/0x800 [ 38.391232] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 38.396053] ? syscall_return_slowpath+0x5c0/0x5c0 [ 38.400961] ? syscall_return_slowpath+0x30f/0x5c0 [ 38.405869] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe [ 38.411210] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.416033] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 38.421196] RIP: 0033:0x44306a [ 38.424362] RSP: 002b:00007ffe74640c18 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 38.432048] RAX: ffffffffffffffda RBX: 00000000200002a0 RCX: 000000000044306a [ 38.439294] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe74640c20 [ 38.446548] RBP: 0000000000000003 R08: 0000000020011500 R09: 000000000000000a [ 38.453801] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 [ 38.461045] R13: 0000000000401f60 R14: 0000000000000000 R15: 0000000000000000 [ 38.468927] Dumping ftrace buffer: [ 38.472616] (ftrace buffer empty) [ 38.476304] Kernel Offset: disabled [ 38.479919] Rebooting in 86400 seconds..