[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ 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 '10.128.0.174' (ECDSA) to the list of known hosts. syzkaller login: [ 34.313292] audit: type=1400 audit(1597816258.356:8): avc: denied { execmem } for pid=6372 comm="syz-executor336" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 34.314805] FAULT_INJECTION: forcing a failure. [ 34.314805] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 34.346766] CPU: 0 PID: 6372 Comm: syz-executor336 Not tainted 4.14.193-syzkaller #0 [ 34.354635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.363969] Call Trace: [ 34.366539] dump_stack+0x1b2/0x283 [ 34.370148] should_fail.cold+0x10a/0x154 [ 34.374294] __alloc_pages_nodemask+0x22c/0x2720 [ 34.379029] ? __lock_acquire+0x5fc/0x3f20 [ 34.383257] ? trace_hardirqs_on+0x10/0x10 [ 34.387468] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.392829] ? __save_stack_trace+0xa0/0x160 [ 34.397237] ? trace_hardirqs_on+0x10/0x10 [ 34.401489] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 34.406309] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 34.411220] ? fs_reclaim_release+0xd0/0x110 [ 34.415746] ? __pmd_alloc+0x32a/0x3f0 [ 34.419634] ? lock_acquire+0x170/0x3f0 [ 34.423591] alloc_pages_current+0x155/0x260 [ 34.427979] pte_alloc_one+0x15/0x100 [ 34.431772] __pte_alloc+0x25/0x2c0 [ 34.435377] copy_page_range+0x1788/0x2630 [ 34.439598] ? anon_vma_interval_tree_insert+0x20a/0x3c0 [ 34.445027] ? apply_to_page_range+0xa60/0xa60 [ 34.449585] ? validate_mm_rb+0x3a/0xa0 [ 34.453554] copy_process.part.0+0x4a6f/0x6f00 [ 34.458137] ? __cleanup_sighand+0x40/0x40 [ 34.462350] ? lock_acquire+0x170/0x3f0 [ 34.466315] _do_fork+0x184/0xc80 [ 34.469762] ? fork_idle+0x270/0x270 [ 34.473468] ? _raw_spin_unlock_irq+0x5a/0x80 [ 34.477941] ? task_work_run+0xfd/0x190 [ 34.481897] ? do_syscall_64+0x4c/0x640 [ 34.485848] ? sys_vfork+0x20/0x20 [ 34.489382] do_syscall_64+0x1d5/0x640 [ 34.493251] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.498435] RIP: 0033:0x4442ea [ 34.501614] RSP: 002b:00007ffe25196c10 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 34.509325] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004442ea [ 34.516578] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 34.523825] RBP: 00007ffe25196c30 R08: 0000000000000000 R09: 0000000001c24880 [ 34.531094] R10: 0000000001c24b50 R11: 0000000000000246 R12: 0000000000000000 [ 34.538353] R13: 0000000000402bf0 R14: 0000000000000000 R15: 0000000000000000 executing program [ 34.566737] IPVS: ftp: loaded support on port[0] = 21 [ 34.604287] FAULT_INJECTION: forcing a failure. [ 34.604287] name failslab, interval 1, probability 0, space 0, times 1 [ 34.616032] CPU: 0 PID: 6403 Comm: syz-executor336 Not tainted 4.14.193-syzkaller #0 [ 34.623920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.633281] Call Trace: [ 34.635871] dump_stack+0x1b2/0x283 [ 34.639491] should_fail.cold+0x10a/0x154 [ 34.643631] should_failslab+0xd6/0x130 [ 34.647589] __kmalloc+0x2c1/0x400 [ 34.651109] ? register_shrinker+0x1ab/0x220 [ 34.655495] register_shrinker+0x1ab/0x220 [ 34.659724] sget_userns+0x9aa/0xc10 [ 34.663423] ? set_bdev_super+0x110/0x110 [ 34.667553] ? ns_test_super+0x50/0x50 [ 34.671432] ? set_bdev_super+0x110/0x110 [ 34.675553] ? ns_test_super+0x50/0x50 [ 34.679416] sget+0xd1/0x110 [ 34.682424] mount_bdev+0xcd/0x360 [ 34.685944] ? ext4_calculate_overhead+0x1020/0x1020 [ 34.691030] mount_fs+0x92/0x2a0 [ 34.694378] vfs_kern_mount.part.0+0x5b/0x470 [ 34.698861] do_mount+0xe53/0x2a00 [ 34.702382] ? do_raw_spin_unlock+0x164/0x220 [ 34.706871] ? copy_mount_string+0x40/0x40 [ 34.711100] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.716786] ? copy_mnt_ns+0xa30/0xa30 [ 34.720650] ? copy_mount_options+0x1fa/0x2f0 [ 34.725999] ? copy_mnt_ns+0xa30/0xa30 [ 34.730817] SyS_mount+0xa8/0x120 [ 34.734245] ? copy_mnt_ns+0xa30/0xa30 [ 34.738120] do_syscall_64+0x1d5/0x640 [ 34.741996] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.747164] RIP: 0033:0x44849a [ 34.750335] RSP: 002b:00007ffe25196a38 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 34.758033] RAX: ffffffffffffffda RBX: 00007ffe25196ac0 RCX: 000000000044849a [ 34.765295] RDX: 0000000020000080 RSI: 0000000020000000 RDI: 00007ffe25196a80 [ 34.772557] RBP: 0000000000000006 R08: 00007ffe25196ac0 R09: 0000000000000000 [ 34.779817] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 [ 34.787154] R13: 0000000000000005 R14: 0000000000000005 R15: 0000000000000001 [ 34.795523] ------------[ cut here ]------------ [ 34.800387] WARNING: CPU: 0 PID: 6403 at fs/super.c:1163 kill_block_super+0xbe/0xe0 [ 34.808184] Kernel panic - not syncing: panic_on_warn set ... [ 34.808184] [ 34.815544] CPU: 0 PID: 6403 Comm: syz-executor336 Not tainted 4.14.193-syzkaller #0 [ 34.823422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.832766] Call Trace: [ 34.835357] dump_stack+0x1b2/0x283 [ 34.838964] panic+0x1f9/0x42d [ 34.842131] ? add_taint.cold+0x16/0x16 [ 34.846109] ? kill_block_super+0xbe/0xe0 [ 34.850235] ? kill_block_super+0xbe/0xe0 [ 34.854374] __warn.cold+0x20/0x4b [ 34.857891] ? ist_end_non_atomic+0x10/0x10 [ 34.862193] ? kill_block_super+0xbe/0xe0 [ 34.866318] report_bug+0x208/0x249 [ 34.869925] do_error_trap+0x195/0x2d0 [ 34.873983] ? math_error+0x2d0/0x2d0 [ 34.877772] ? __filemap_fdatawait_range+0x254/0x2e0 [ 34.882858] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.887681] invalid_op+0x1b/0x40 [ 34.891113] RIP: 0010:kill_block_super+0xbe/0xe0 [ 34.895842] RSP: 0018:ffff888095dffbc8 EFLAGS: 00010297 [ 34.901238] RAX: ffff888096e121c0 RBX: 0000000000000000 RCX: 1ffff11012bbff58 [ 34.908515] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880852606f0 [ 34.915767] RBP: ffff8880969e8ac0 R08: 0000000000000000 R09: 0000000000000001 [ 34.923034] R10: 0000000000000000 R11: ffff888096e121c0 R12: ffff888085260240 [ 34.930285] R13: ffffffff87e860d0 R14: ffffffff87d536a0 R15: dffffc0000000000 [ 34.937552] ? kill_block_super+0xbe/0xe0 [ 34.941679] deactivate_locked_super+0x6c/0xd0 [ 34.946252] sget_userns+0x9c4/0xc10 [ 34.949971] ? set_bdev_super+0x110/0x110 [ 34.954099] ? ns_test_super+0x50/0x50 [ 34.957961] ? set_bdev_super+0x110/0x110 [ 34.962089] ? ns_test_super+0x50/0x50 [ 34.965952] sget+0xd1/0x110 [ 34.968950] mount_bdev+0xcd/0x360 [ 34.972465] ? ext4_calculate_overhead+0x1020/0x1020 [ 34.977566] mount_fs+0x92/0x2a0 [ 34.980912] vfs_kern_mount.part.0+0x5b/0x470 [ 34.985399] do_mount+0xe53/0x2a00 [ 34.988916] ? do_raw_spin_unlock+0x164/0x220 [ 34.993390] ? copy_mount_string+0x40/0x40 [ 34.997614] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.002608] ? copy_mnt_ns+0xa30/0xa30 [ 35.006918] ? copy_mount_options+0x1fa/0x2f0 [ 35.011387] ? copy_mnt_ns+0xa30/0xa30 [ 35.015251] SyS_mount+0xa8/0x120 [ 35.018680] ? copy_mnt_ns+0xa30/0xa30 [ 35.022559] do_syscall_64+0x1d5/0x640 [ 35.026432] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 35.031610] RIP: 0033:0x44849a [ 35.034774] RSP: 002b:00007ffe25196a38 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 35.042469] RAX: ffffffffffffffda RBX: 00007ffe25196ac0 RCX: 000000000044849a [ 35.049729] RDX: 0000000020000080 RSI: 0000000020000000 RDI: 00007ffe25196a80 [ 35.056991] RBP: 0000000000000006 R08: 00007ffe25196ac0 R09: 0000000000000000 [ 35.064243] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001 [ 35.071491] R13: 0000000000000005 R14: 0000000000000005 R15: 0000000000000001 [ 35.079876] Kernel Offset: disabled [ 35.083543] Rebooting in 86400 seconds..