[ OK ] Started Serial Getty on ttyS0. [ 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... [ 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 '10.128.1.69' (ECDSA) to the list of known hosts. syzkaller login: [ 27.625411] IPVS: ftp: loaded support on port[0] = 21 [ 27.655835] IPVS: ftp: loaded support on port[0] = 21 [ 27.686709] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 27.739364] FAULT_INJECTION: forcing a failure. [ 27.739364] name failslab, interval 1, probability 0, space 0, times 1 [ 27.752253] FAULT_INJECTION: forcing a failure. [ 27.752253] name failslab, interval 1, probability 0, space 0, times 1 [ 27.752525] CPU: 0 PID: 8031 Comm: syz-executor174 Not tainted 4.14.270-syzkaller #0 [ 27.771407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.780751] Call Trace: [ 27.783332] dump_stack+0x1b2/0x281 [ 27.783403] IPVS: ftp: loaded support on port[0] = 21 [ 27.786973] should_fail.cold+0x10a/0x149 [ 27.786985] should_failslab+0xd6/0x130 [ 27.786997] __kmalloc+0x2c1/0x400 [ 27.803792] ? register_shrinker+0x1ab/0x220 [ 27.808268] register_shrinker+0x1ab/0x220 [ 27.812571] sget_userns+0x9aa/0xc10 [ 27.816270] ? set_gfs2_super+0x110/0x110 [ 27.820423] ? gfs2_open+0x160/0x160 [ 27.824124] ? set_gfs2_super+0x110/0x110 [ 27.828268] ? gfs2_open+0x160/0x160 [ 27.831966] sget+0xd1/0x110 [ 27.834969] gfs2_mount+0x10f/0x510 [ 27.838575] ? fill_super+0x2310/0x2310 [ 27.842535] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 27.847965] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 27.852967] ? alloc_pages_current+0x15d/0x260 [ 27.857527] ? __lockdep_init_map+0x100/0x560 [ 27.862002] mount_fs+0x92/0x2a0 [ 27.865353] vfs_kern_mount.part.0+0x5b/0x470 [ 27.869832] do_mount+0xe65/0x2a10 [ 27.873354] ? retint_kernel+0x2d/0x2d [ 27.877224] ? copy_mount_string+0x40/0x40 [ 27.881439] ? copy_mount_options+0x18b/0x2f0 [ 27.885914] ? copy_mount_options+0x1fa/0x2f0 [ 27.890388] ? copy_mnt_ns+0xa30/0xa30 [ 27.894252] SyS_mount+0xa8/0x120 [ 27.897683] ? copy_mnt_ns+0xa30/0xa30 [ 27.901549] do_syscall_64+0x1d5/0x640 [ 27.905417] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 27.910589] RIP: 0033:0x7fc44b2320fa [ 27.914275] RSP: 002b:00007ffe9a2e4e98 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 27.921964] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc44b2320fa [ 27.929213] RDX: 0000000020000780 RSI: 00000000200007c0 RDI: 00007ffe9a2e4ea0 [ 27.936460] RBP: 00007ffe9a2e4ea0 R08: 00007ffe9a2e4ee0 R09: 6f6f6c2f7665642f [ 27.943812] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000005 [ 27.951077] R13: 0000000000000000 R14: 00007ffe9a2e4ee0 R15: 0000000000000000 [ 27.958342] CPU: 1 PID: 8028 Comm: syz-executor174 Not tainted 4.14.270-syzkaller #0 [ 27.966222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.975575] Call Trace: [ 27.978161] dump_stack+0x1b2/0x281 [ 27.981791] should_fail.cold+0x10a/0x149 [ 27.985941] should_failslab+0xd6/0x130 [ 27.989913] __kmalloc+0x2c1/0x400 [ 27.993544] ? __list_lru_init+0x67/0x710 [ 27.994606] ------------[ cut here ]------------ [ 27.997714] __list_lru_init+0x67/0x710 [ 27.997747] sget_userns+0x4e4/0xc10 [ 28.002554] WARNING: CPU: 0 PID: 8031 at fs/super.c:1163 kill_block_super+0xbe/0xe0 [ 28.006505] ? set_gfs2_super+0x110/0x110 [ 28.010202] Kernel panic - not syncing: panic_on_warn set ... [ 28.010202] [ 28.017978] ? gfs2_open+0x160/0x160 [ 28.033116] ? set_gfs2_super+0x110/0x110 [ 28.037256] ? gfs2_open+0x160/0x160 [ 28.040946] sget+0xd1/0x110 [ 28.043947] gfs2_mount+0x10f/0x510 [ 28.047554] ? fill_super+0x2310/0x2310 [ 28.051517] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.056944] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.061940] ? alloc_pages_current+0x15d/0x260 [ 28.066501] ? __lockdep_init_map+0x100/0x560 [ 28.070974] mount_fs+0x92/0x2a0 [ 28.074320] vfs_kern_mount.part.0+0x5b/0x470 [ 28.078797] do_mount+0xe65/0x2a10 [ 28.082317] ? do_raw_spin_unlock+0x164/0x220 [ 28.086792] ? copy_mount_string+0x40/0x40 [ 28.091019] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.096015] ? copy_mnt_ns+0xa30/0xa30 [ 28.099885] ? copy_mount_options+0x1fa/0x2f0 [ 28.104360] ? copy_mnt_ns+0xa30/0xa30 [ 28.108241] SyS_mount+0xa8/0x120 [ 28.111672] ? copy_mnt_ns+0xa30/0xa30 [ 28.115539] do_syscall_64+0x1d5/0x640 [ 28.119408] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.124576] RIP: 0033:0x7fc44b2320fa [ 28.128264] RSP: 002b:00007ffe9a2e4e98 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 28.135950] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc44b2320fa [ 28.143198] RDX: 0000000020000780 RSI: 00000000200007c0 RDI: 00007ffe9a2e4ea0 [ 28.150447] RBP: 00007ffe9a2e4ea0 R08: 00007ffe9a2e4ee0 R09: 6f6f6c2f7665642f [ 28.157709] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000005 [ 28.164955] R13: 0000000000000000 R14: 00007ffe9a2e4ee0 R15: 0000000000000000 [ 28.172302] CPU: 0 PID: 8031 Comm: syz-executor174 Not tainted 4.14.270-syzkaller #0 [ 28.180268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.189610] Call Trace: [ 28.192189] dump_stack+0x1b2/0x281 [ 28.195857] panic+0x1f9/0x42d [ 28.199041] ? add_taint.cold+0x16/0x16 [ 28.203110] ? kill_block_super+0xbe/0xe0 [ 28.207420] ? kill_block_super+0xbe/0xe0 [ 28.211582] __warn.cold+0x20/0x44 [ 28.215099] ? ist_end_non_atomic+0x10/0x10 [ 28.219395] ? kill_block_super+0xbe/0xe0 [ 28.223528] report_bug+0x208/0x250 [ 28.227132] do_error_trap+0x195/0x2d0 [ 28.230994] ? math_error+0x2d0/0x2d0 [ 28.234770] ? retint_kernel+0x2d/0x2d [ 28.238643] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.243460] invalid_op+0x1b/0x40 [ 28.247081] RIP: 0010:kill_block_super+0xbe/0xe0 [ 28.251808] RSP: 0018:ffff8880b53bfa50 EFLAGS: 00010297 [ 28.257145] RAX: ffff8880b34fc500 RBX: 0000000000000000 RCX: 1ffff1101669f9b6 [ 28.264406] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880b1dc0bb0 [ 28.271661] RBP: ffff8880b53b2dc0 R08: ffffffff8b9ac500 R09: 0000000000000001 [ 28.278909] R10: 0000000000000000 R11: ffff8880b34fc500 R12: ffff8880b1dc0700 [ 28.286154] R13: ffffffff89303db0 R14: ffffffff88f45040 R15: dffffc0000000000 [ 28.293520] gfs2_kill_sb+0x144/0x1a0 [ 28.297296] deactivate_locked_super+0x6c/0xd0 [ 28.301873] sget_userns+0x9c4/0xc10 [ 28.305561] ? set_gfs2_super+0x110/0x110 [ 28.309697] ? gfs2_open+0x160/0x160 [ 28.313398] ? set_gfs2_super+0x110/0x110 [ 28.317518] ? gfs2_open+0x160/0x160 [ 28.321205] sget+0xd1/0x110 [ 28.324218] gfs2_mount+0x10f/0x510 [ 28.327835] ? fill_super+0x2310/0x2310 [ 28.331790] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.337235] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.342241] ? alloc_pages_current+0x15d/0x260 [ 28.346831] ? __lockdep_init_map+0x100/0x560 [ 28.351312] mount_fs+0x92/0x2a0 [ 28.354667] vfs_kern_mount.part.0+0x5b/0x470 [ 28.359149] do_mount+0xe65/0x2a10 [ 28.362678] ? retint_kernel+0x2d/0x2d [ 28.366538] ? copy_mount_string+0x40/0x40 [ 28.370747] ? copy_mount_options+0x18b/0x2f0 [ 28.375217] ? copy_mount_options+0x1fa/0x2f0 [ 28.379685] ? copy_mnt_ns+0xa30/0xa30 [ 28.383546] SyS_mount+0xa8/0x120 [ 28.386972] ? copy_mnt_ns+0xa30/0xa30 [ 28.390836] do_syscall_64+0x1d5/0x640 [ 28.394707] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.399871] RIP: 0033:0x7fc44b2320fa [ 28.403555] RSP: 002b:00007ffe9a2e4e98 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 28.411236] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc44b2320fa [ 28.418490] RDX: 0000000020000780 RSI: 00000000200007c0 RDI: 00007ffe9a2e4ea0 [ 28.425734] RBP: 00007ffe9a2e4ea0 R08: 00007ffe9a2e4ee0 R09: 6f6f6c2f7665642f [ 28.432980] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000005 [ 28.440222] R13: 0000000000000000 R14: 00007ffe9a2e4ee0 R15: 0000000000000000 [ 28.447806] Kernel Offset: disabled [ 28.451456] Rebooting in 86400 seconds..