[ OK ] Started Getty on tty1. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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 '10.128.0.97' (ECDSA) to the list of known hosts. syzkaller login: [ 28.062177] IPVS: ftp: loaded support on port[0] = 21 [ 28.093620] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 28.129744] IPVS: ftp: loaded support on port[0] = 21 [ 28.151489] FAULT_INJECTION: forcing a failure. [ 28.151489] name failslab, interval 1, probability 0, space 0, times 1 [ 28.154684] FAULT_INJECTION: forcing a failure. [ 28.154684] name failslab, interval 1, probability 0, space 0, times 1 [ 28.164278] CPU: 1 PID: 8041 Comm: syz-executor322 Not tainted 4.14.285-syzkaller #0 [ 28.182020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.191372] Call Trace: [ 28.193964] dump_stack+0x1b2/0x281 [ 28.197709] should_fail.cold+0x10a/0x149 [ 28.201864] should_failslab+0xd6/0x130 [ 28.205866] kmem_cache_alloc+0x40/0x3c0 [ 28.210009] __debug_object_init+0x578/0x7a0 [ 28.214406] ? debug_object_destroy+0x240/0x240 [ 28.219063] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.224063] __init_work+0x3f/0x50 [ 28.227672] xfs_fs_fill_super+0x22f/0x1380 [ 28.231992] mount_bdev+0x2b3/0x360 [ 28.235607] ? xfs_parseargs+0x1130/0x1130 [ 28.239839] mount_fs+0x92/0x2a0 [ 28.243216] vfs_kern_mount.part.0+0x5b/0x470 [ 28.247730] do_mount+0xe65/0x2a30 [ 28.251264] ? retint_kernel+0x2d/0x2d [ 28.255155] ? copy_mount_string+0x40/0x40 [ 28.259391] ? copy_mount_options+0x19a/0x2f0 [ 28.263886] ? copy_mount_options+0x1fa/0x2f0 [ 28.268377] ? copy_mnt_ns+0xa30/0xa30 [ 28.272258] SyS_mount+0xa8/0x120 [ 28.275694] ? copy_mnt_ns+0xa30/0xa30 [ 28.279562] do_syscall_64+0x1d5/0x640 [ 28.283435] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.288602] RIP: 0033:0x7efe45abe66a [ 28.292304] RSP: 002b:00007ffcd39839d8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 28.299996] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007efe45abe66a [ 28.307272] RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007ffcd39839e0 [ 28.314529] RBP: 00007ffcd39839e0 R08: 00007ffcd3983a20 R09: 6f6f6c2f7665642f [ 28.321805] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005 [ 28.329143] R13: 0000000000000000 R14: 00007ffcd3983a20 R15: 0000000000000000 [ 28.336411] CPU: 0 PID: 8043 Comm: syz-executor322 Not tainted 4.14.285-syzkaller #0 [ 28.344380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.353722] Call Trace: [ 28.356295] dump_stack+0x1b2/0x281 [ 28.359928] should_fail.cold+0x10a/0x149 [ 28.364144] should_failslab+0xd6/0x130 [ 28.368117] __kmalloc+0x2c1/0x400 [ 28.371641] ? register_shrinker+0x1ab/0x220 [ 28.376034] register_shrinker+0x1ab/0x220 [ 28.380248] sget_userns+0x9aa/0xc10 [ 28.383951] ? set_bdev_super+0x110/0x110 [ 28.388164] ? ns_test_super+0x50/0x50 [ 28.392038] ? set_bdev_super+0x110/0x110 [ 28.396187] ? ns_test_super+0x50/0x50 [ 28.400047] sget+0xd1/0x110 [ 28.403045] mount_bdev+0xcd/0x360 [ 28.406566] ? xfs_parseargs+0x1130/0x1130 [ 28.410786] mount_fs+0x92/0x2a0 [ 28.412923] XFS (loop0): Invalid superblock magic number [ 28.414136] vfs_kern_mount.part.0+0x5b/0x470 [ 28.424043] do_mount+0xe65/0x2a30 [ 28.427576] ? do_raw_spin_unlock+0x164/0x220 [ 28.432079] ? copy_mount_string+0x40/0x40 [ 28.436296] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.441290] ? copy_mnt_ns+0xa30/0xa30 [ 28.445164] ? copy_mount_options+0x1fa/0x2f0 [ 28.449645] ? copy_mnt_ns+0xa30/0xa30 [ 28.453600] SyS_mount+0xa8/0x120 [ 28.457032] ? copy_mnt_ns+0xa30/0xa30 [ 28.460897] do_syscall_64+0x1d5/0x640 [ 28.464822] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.469988] RIP: 0033:0x7efe45abe66a [ 28.473674] RSP: 002b:00007ffcd39839d8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 28.481361] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007efe45abe66a [ 28.488608] RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007ffcd39839e0 [ 28.495853] RBP: 00007ffcd39839e0 R08: 00007ffcd3983a20 R09: 6f6f6c2f7665642f [ 28.503121] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005 [ 28.510375] R13: 0000000000000000 R14: 00007ffcd3983a20 R15: 0000000000000000 [ 28.518811] ------------[ cut here ]------------ [ 28.523682] WARNING: CPU: 0 PID: 8043 at fs/super.c:1163 kill_block_super+0xbe/0xe0 [ 28.531468] Kernel panic - not syncing: panic_on_warn set ... [ 28.531468] [ 28.538806] CPU: 0 PID: 8043 Comm: syz-executor322 Not tainted 4.14.285-syzkaller #0 [ 28.546665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.556522] Call Trace: [ 28.559094] dump_stack+0x1b2/0x281 [ 28.562700] panic+0x1f9/0x42d [ 28.565870] ? add_taint.cold+0x16/0x16 [ 28.569955] ? kill_block_super+0xbe/0xe0 [ 28.574087] ? kill_block_super+0xbe/0xe0 [ 28.578216] __warn.cold+0x20/0x44 [ 28.581914] ? ist_end_non_atomic+0x10/0x10 [ 28.586220] ? kill_block_super+0xbe/0xe0 [ 28.590345] report_bug+0x208/0x250 [ 28.593963] do_error_trap+0x195/0x2d0 [ 28.597828] ? math_error+0x2d0/0x2d0 [ 28.601618] ? retint_kernel+0x2d/0x2d [ 28.605493] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 28.610327] invalid_op+0x1b/0x40 [ 28.613761] RIP: 0010:kill_block_super+0xbe/0xe0 [ 28.618513] RSP: 0018:ffff8880958ffbc8 EFLAGS: 00010297 [ 28.623941] RAX: ffff8880b2ce4580 RBX: 0000000000000000 RCX: 1ffff1101659c9c6 [ 28.631213] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88808fe9f6b0 [ 28.638461] RBP: ffff8880b32ded40 R08: ffffffff8b9a8818 R09: 0000000000000001 [ 28.645707] R10: 0000000000000000 R11: ffff8880b2ce4580 R12: ffff88808fe9f200 [ 28.652955] R13: ffffffff892472f0 R14: ffffffff88f45760 R15: dffffc0000000000 [ 28.660235] ? kill_block_super+0xbe/0xe0 [ 28.664364] deactivate_locked_super+0x6c/0xd0 [ 28.668938] sget_userns+0x9c4/0xc10 [ 28.672627] ? set_bdev_super+0x110/0x110 [ 28.676753] ? ns_test_super+0x50/0x50 [ 28.680624] ? set_bdev_super+0x110/0x110 [ 28.684761] ? ns_test_super+0x50/0x50 [ 28.688630] sget+0xd1/0x110 [ 28.691638] mount_bdev+0xcd/0x360 [ 28.695158] ? xfs_parseargs+0x1130/0x1130 [ 28.699376] mount_fs+0x92/0x2a0 [ 28.702738] vfs_kern_mount.part.0+0x5b/0x470 [ 28.707313] do_mount+0xe65/0x2a30 [ 28.710856] ? do_raw_spin_unlock+0x164/0x220 [ 28.716112] ? copy_mount_string+0x40/0x40 [ 28.720321] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 28.725326] ? copy_mnt_ns+0xa30/0xa30 [ 28.729190] ? copy_mount_options+0x1fa/0x2f0 [ 28.733677] ? copy_mnt_ns+0xa30/0xa30 [ 28.737551] SyS_mount+0xa8/0x120 [ 28.740979] ? copy_mnt_ns+0xa30/0xa30 [ 28.744864] do_syscall_64+0x1d5/0x640 [ 28.748736] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 28.753905] RIP: 0033:0x7efe45abe66a [ 28.757611] RSP: 002b:00007ffcd39839d8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 28.765294] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007efe45abe66a [ 28.772556] RDX: 0000000020000000 RSI: 0000000020000040 RDI: 00007ffcd39839e0 [ 28.779801] RBP: 00007ffcd39839e0 R08: 00007ffcd3983a20 R09: 6f6f6c2f7665642f [ 28.787053] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005 [ 28.794304] R13: 0000000000000000 R14: 00007ffcd3983a20 R15: 0000000000000000 [ 28.801919] Kernel Offset: disabled [ 28.805831] Rebooting in 86400 seconds..