Debian GNU/Linux 7 syzkaller ttyS0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz5.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 syzkaller login: [ 46.699187] hrtimer: interrupt took 4773890 ns 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 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 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 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 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 [ 47.923639] syzkaller645273: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 47.924742] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 47.925598] CPU: 1 PID: 3066 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 47.926674] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 47.927948] Call Trace: [ 47.928369] dump_stack+0x194/0x257 [ 47.928973] ? arch_local_irq_restore+0x53/0x53 [ 47.929742] warn_alloc+0x1c2/0x2f0 [ 47.930331] ? zone_watermark_ok_safe+0x430/0x430 [ 47.931109] ? mutex_unlock+0xd/0x10 [ 47.931745] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 47.932582] ? warn_alloc+0x2f0/0x2f0 [ 47.933203] ? SyS_ioctl+0x8f/0xc0 [ 47.933779] ? warn_alloc+0x2f0/0x2f0 [ 47.934406] ? save_stack_trace+0x16/0x20 [ 47.935104] ? check_noncircular+0x20/0x20 [ 47.936040] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 47.936921] ? find_held_lock+0x39/0x1d0 [ 47.937632] ? lock_downgrade+0x990/0x990 [ 47.938363] ? check_same_owner+0x320/0x320 [ 47.939101] ? rcu_note_context_switch+0x710/0x710 [ 47.939933] ? check_noncircular+0x20/0x20 [ 47.940646] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 47.941697] ? __might_sleep+0x95/0x190 [ 47.942108] __alloc_pages_nodemask+0x9f7/0xd80 [ 47.942599] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 47.943151] ? __alloc_pages_nodemask+0xae5/0xd80 [ 47.943716] ? find_held_lock+0x39/0x1d0 [ 47.944502] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 47.944978] ? cache_grow_begin+0x31b/0x400 [ 47.945384] cache_grow_begin+0x86/0x400 [ 47.945904] fallback_alloc+0x150/0x2b0 [ 47.946325] ____cache_alloc_node+0x1cf/0x1e0 [ 47.946761] kmem_cache_alloc_trace+0x27d/0x750 [ 47.947191] ? lock_downgrade+0x990/0x990 [ 47.947598] kvm_dev_ioctl+0x216/0x1840 [ 47.947967] ? lock_release+0xd70/0xd70 [ 47.948333] ? install_new_memslots+0x420/0x420 [ 47.948779] ? avc_has_extended_perms+0x7fa/0x12c0 [ 47.949238] ? unwind_get_return_address+0x61/0xa0 [ 47.949685] ? avc_ss_reset+0x110/0x110 [ 47.950042] ? putname+0xee/0x130 [ 47.950351] ? save_stack+0xa3/0xd0 [ 47.950680] ? save_stack_trace+0x16/0x20 [ 47.951050] ? save_stack+0x43/0xd0 [ 47.951356] ? kasan_slab_free+0x71/0xc0 [ 47.951718] ? kmem_cache_free+0x77/0x280 [ 47.952089] ? putname+0xee/0x130 [ 47.952395] ? do_sys_open+0x31b/0x6d0 [ 47.952784] ? __lock_is_held+0xbc/0x140 [ 47.953216] ? check_same_owner+0x320/0x320 [ 47.953607] ? rcu_note_context_switch+0x710/0x710 [ 47.954071] ? install_new_memslots+0x420/0x420 [ 47.954537] do_vfs_ioctl+0x1b1/0x1530 [ 47.954930] ? _cond_resched+0x14/0x30 [ 47.955330] ? ioctl_preallocate+0x2b0/0x2b0 [ 47.955779] ? selinux_capable+0x40/0x40 [ 47.956191] ? putname+0xf3/0x130 [ 47.956561] ? security_file_ioctl+0x7d/0xb0 [ 47.957004] ? security_file_ioctl+0x89/0xb0 [ 47.957751] SyS_ioctl+0x8f/0xc0 [ 47.958106] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 47.958917] RIP: 0033:0x43a429 [ 47.959249] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 47.960576] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 000000000043a429 [ 47.961802] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 000000000000031c [ 47.962542] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 47.963776] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000 [ 47.964517] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 47.965415] Mem-Info: [ 47.974818] active_anon:4845 inactive_anon:42 isolated_anon:0 [ 47.974818] active_file:756 inactive_file:757 isolated_file:93 [ 47.974818] unevictable:0 dirty:0 writeback:0 unstable:0 [ 47.974818] slab_reclaimable:53150 slab_unreclaimable:326850 [ 47.974818] mapped:1270 shmem:75 pagetables:389 bounce:0 [ 47.974818] free:17780 free_pcp:30 free_cma:0 [ 47.979858] Node 0 active_anon:9484kB inactive_anon:68kB active_file:2956kB inactive_file:2960kB unevictable:0kB isolated(anon):0kB isolated(file):372kB mapped:5080kB dirty:0kB writeback:0kB shmem:108kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 47.982476] Node 1 active_anon:9896kB inactive_anon:100kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:192kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 47.984853] Node 0 DMA free:4172kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:12kB inactive_file:84kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 47.987271] lowmem_reserve[]: 0 886 886 886 [ 47.987702] Node 0 DMA32 free:36552kB min:36536kB low:45668kB high:54800kB active_anon:9432kB inactive_anon:68kB active_file:2944kB inactive_file:2876kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2048kB pagetables:968kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB [ 47.990550] lowmem_reserve[]: 0 0 0 0 [ 47.990952] Node 1 DMA32 free:30396kB min:30404kB low:38004kB high:45604kB active_anon:9896kB inactive_anon:100kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:2048kB pagetables:588kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 47.993925] lowmem_reserve[]: 0 0 0 0 [ 47.994368] Node 0 DMA: 9*4kB (UME) 1*8kB (E) 0*16kB 1*32kB (M) 2*64kB (UM) 1*128kB (E) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4172kB [ 47.995877] Node 0 DMA32: 273*4kB (UM) 362*8kB (UME) 140*16kB (UME) 83*32kB (UME) 17*64kB (UM) 4*128kB (UM) 2*256kB (UM) 3*512kB (UME) 2*1024kB (ME) 3*2048kB (UME) 4*4096kB (M) = 37108kB [ 47.997701] Node 1 DMA32: 423*4kB (UME) 692*8kB (UM) 425*16kB (UME) 143*32kB (UME) 59*64kB (UM) 25*128kB (UME) 6*256kB (ME) 1*512kB (E) 3*1024kB (UME) 0*2048kB 0*4096kB = 30700kB [ 47.999418] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB executing program [ 48.007378] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 48.009919] 1586 total pagecache pages [ 48.010963] 0 pages in swap cache [ 48.011719] Swap cache stats: add 0, delete 0, find 0/0 [ 48.013094] Free swap = 0kB [ 48.013573] Total swap = 0kB [ 48.014190] 524186 pages RAM [ 48.014547] 0 pages HighMem/MovableOnly [ 48.015373] 103968 pages reserved 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 [ 50.290256] syzkaller645273: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 50.291429] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 50.292355] CPU: 2 PID: 3069 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 50.293078] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 50.293688] Call Trace: [ 50.293870] dump_stack+0x194/0x257 [ 50.294112] ? arch_local_irq_restore+0x53/0x53 [ 50.294442] ? flush_work+0x621/0x930 [ 50.294717] warn_alloc+0x1c2/0x2f0 [ 50.294966] ? zone_watermark_ok_safe+0x430/0x430 [ 50.295298] ? mutex_unlock+0xd/0x10 [ 50.295711] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 50.296191] ? warn_alloc+0x2f0/0x2f0 [ 50.296503] ? SyS_ioctl+0x8f/0xc0 [ 50.296751] ? warn_alloc+0x2f0/0x2f0 [ 50.297013] ? save_stack_trace+0x16/0x20 [ 50.297306] ? check_noncircular+0x20/0x20 [ 50.297602] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 50.297964] ? find_held_lock+0x39/0x1d0 [ 50.298248] ? lock_downgrade+0x990/0x990 [ 50.298549] ? check_same_owner+0x320/0x320 [ 50.298843] ? rcu_note_context_switch+0x710/0x710 [ 50.299175] ? check_noncircular+0x20/0x20 [ 50.299460] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 50.299919] ? __might_sleep+0x95/0x190 [ 50.300196] __alloc_pages_nodemask+0x9f7/0xd80 [ 50.300520] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 50.300861] ? __alloc_pages_nodemask+0xae5/0xd80 [ 50.301193] ? find_held_lock+0x39/0x1d0 [ 50.301472] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 50.302949] ? cache_grow_begin+0x31b/0x400 [ 50.303541] cache_grow_begin+0x86/0x400 [ 50.304040] fallback_alloc+0x150/0x2b0 [ 50.304449] ____cache_alloc_node+0x1cf/0x1e0 [ 50.304986] kmem_cache_alloc_trace+0x27d/0x750 [ 50.323881] ? lock_downgrade+0x990/0x990 [ 50.324253] kvm_dev_ioctl+0x216/0x1840 [ 50.324617] ? lock_release+0xd70/0xd70 [ 50.324976] ? install_new_memslots+0x420/0x420 [ 50.325413] ? avc_has_extended_perms+0x7fa/0x12c0 [ 50.325862] ? unwind_get_return_address+0x61/0xa0 [ 50.326303] ? avc_ss_reset+0x110/0x110 [ 50.326670] ? putname+0xee/0x130 [ 50.326968] ? save_stack+0xa3/0xd0 [ 50.327289] ? save_stack_trace+0x16/0x20 [ 50.327679] ? save_stack+0x43/0xd0 [ 50.327995] ? kasan_slab_free+0x71/0xc0 [ 50.328352] ? kmem_cache_free+0x77/0x280 [ 50.328734] ? putname+0xee/0x130 [ 50.329028] ? do_sys_open+0x31b/0x6d0 [ 50.329379] ? __lock_is_held+0xbc/0x140 [ 50.329758] ? check_same_owner+0x320/0x320 [ 50.330149] ? rcu_note_context_switch+0x710/0x710 [ 50.330594] ? install_new_memslots+0x420/0x420 [ 50.331013] do_vfs_ioctl+0x1b1/0x1530 [ 50.331352] ? _cond_resched+0x14/0x30 [ 50.331792] ? ioctl_preallocate+0x2b0/0x2b0 [ 50.332683] ? selinux_capable+0x40/0x40 [ 50.334414] ? putname+0xf3/0x130 [ 50.335203] ? security_file_ioctl+0x7d/0xb0 [ 50.336107] ? security_file_ioctl+0x89/0xb0 [ 50.336876] SyS_ioctl+0x8f/0xc0 [ 50.337716] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 50.338671] RIP: 0033:0x43a429 [ 50.339377] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000203 ORIG_RAX: 0000000000000010 [ 50.340711] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000043a429 [ 50.341939] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 00000000000002f8 [ 50.343105] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 50.343888] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 50.344926] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 50.346206] Mem-Info: [ 50.350709] active_anon:3831 inactive_anon:42 isolated_anon:0 [ 50.350709] active_file:51 inactive_file:223 isolated_file:55 [ 50.350709] unevictable:0 dirty:0 writeback:6 unstable:0 [ 50.350709] slab_reclaimable:53652 slab_unreclaimable:328443 [ 50.350709] mapped:150 shmem:76 pagetables:389 bounce:0 [ 50.350709] free:18040 free_pcp:72 free_cma:0 [ 50.355071] Node 0 active_anon:7460kB inactive_anon:64kB active_file:60kB inactive_file:792kB unevictable:0kB isolated(anon):0kB isolated(file):220kB mapped:352kB dirty:0kB writeback:24kB shmem:104kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 50.365092] Node 1 active_anon:7864kB inactive_anon:104kB active_file:44kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:184kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 50.367071] Node 0 DMA free:4152kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:0kB inactive_file:80kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:4kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 50.384837] lowmem_reserve[]: 0 886 886 886 [ 50.385269] Node 0 DMA32 free:36240kB min:36536kB low:45668kB high:54800kB active_anon:7408kB inactive_anon:64kB active_file:356kB inactive_file:768kB unevictable:0kB writepending:24kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2048kB pagetables:964kB bounce:0kB free_pcp:320kB local_pcp:0kB free_cma:0kB [ 50.391502] lowmem_reserve[]: 0 0 0 0 [ 50.391895] Node 1 DMA32 free:31256kB min:30404kB low:38004kB high:45604kB active_anon:7864kB inactive_anon:104kB active_file:96kB inactive_file:312kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:2048kB pagetables:588kB bounce:0kB free_pcp:780kB local_pcp:0kB free_cma:0kB [ 50.394570] lowmem_reserve[]: 0 0 0 0 [ 50.394963] Node 0 DMA: 4*4kB (UM) 3*8kB (ME) 1*16kB (M) 1*32kB (E) 2*64kB (UE) 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4184kB [ 50.396545] Node 0 DMA32: 206*4kB (UME) 476*8kB (UME) 186*16kB (UM) 111*32kB (UM) 60*64kB (UME) 12*128kB (UME) 1*256kB (M) 2*512kB (ME) 2*1024kB (UM) 2*2048kB (UE) 3*4096kB (M) = 36248kB [ 50.411622] Node 1 DMA32: 201*4kB (UME) 665*8kB (UMEH) 473*16kB (UMEH) 150*32kB (UME) 62*64kB (UM) 24*128kB (UM) 6*256kB (UM) 0*512kB 2*1024kB (ME) 1*2048kB (M) 0*4096kB = 31164kB [ 50.414374] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 50.416738] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 50.419250] 296 total pagecache pages [ 50.422374] 0 pages in swap cache [ 50.422845] Swap cache stats: add 0, delete 0, find 0/0 [ 50.423596] Free swap = 0kB [ 50.423994] Total swap = 0kB [ 50.424741] 524186 pages RAM [ 50.425270] 0 pages HighMem/MovableOnly [ 50.426658] 103968 pages reserved executing program [ 50.748459] syzkaller645273: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 50.749456] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 50.749805] CPU: 3 PID: 3064 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 50.750342] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 50.750866] Call Trace: [ 50.751054] dump_stack+0x194/0x257 [ 50.751293] ? arch_local_irq_restore+0x53/0x53 [ 50.751622] ? flush_work+0x621/0x930 [ 50.751893] warn_alloc+0x1c2/0x2f0 [ 50.752131] ? zone_watermark_ok_safe+0x430/0x430 [ 50.752438] ? mutex_unlock+0xd/0x10 [ 50.752694] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 50.753054] ? warn_alloc+0x2f0/0x2f0 [ 50.753315] ? SyS_ioctl+0x8f/0xc0 [ 50.753554] ? warn_alloc+0x2f0/0x2f0 [ 50.753807] ? save_stack_trace+0x16/0x20 [ 50.754082] ? check_noncircular+0x20/0x20 [ 50.754359] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 50.754790] ? find_held_lock+0x39/0x1d0 [ 50.755210] ? lock_downgrade+0x990/0x990 [ 50.756200] ? check_same_owner+0x320/0x320 [ 50.757274] ? rcu_note_context_switch+0x710/0x710 [ 50.758533] ? check_noncircular+0x20/0x20 [ 50.759585] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 50.761693] ? __might_sleep+0x95/0x190 [ 50.762416] __alloc_pages_nodemask+0x9f7/0xd80 [ 50.763099] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 50.763812] ? __alloc_pages_nodemask+0xae5/0xd80 [ 50.764458] ? find_held_lock+0x39/0x1d0 [ 50.765070] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 50.765745] ? cache_grow_begin+0x31b/0x400 [ 50.766326] cache_grow_begin+0x86/0x400 [ 50.766853] fallback_alloc+0x150/0x2b0 [ 50.767584] ____cache_alloc_node+0x1cf/0x1e0 [ 50.768182] kmem_cache_alloc_trace+0x27d/0x750 [ 50.768784] ? lock_downgrade+0x990/0x990 [ 50.769343] kvm_dev_ioctl+0x216/0x1840 [ 50.769886] ? lock_release+0xd70/0xd70 [ 50.770425] ? install_new_memslots+0x420/0x420 [ 50.771029] ? avc_has_extended_perms+0x7fa/0x12c0 [ 50.771700] ? unwind_get_return_address+0x61/0xa0 [ 50.772588] ? avc_ss_reset+0x110/0x110 [ 50.773384] ? putname+0xee/0x130 [ 50.774770] ? save_stack+0xa3/0xd0 [ 50.776655] ? save_stack_trace+0x16/0x20 [ 50.778837] ? save_stack+0x43/0xd0 [ 50.783633] ? kasan_slab_free+0x71/0xc0 [ 50.784471] ? kmem_cache_free+0x77/0x280 [ 50.786386] ? putname+0xee/0x130 [ 50.787162] ? do_sys_open+0x31b/0x6d0 [ 50.787710] ? __lock_is_held+0xbc/0x140 [ 50.788248] ? check_same_owner+0x320/0x320 [ 50.788803] ? rcu_note_context_switch+0x710/0x710 [ 50.789445] ? install_new_memslots+0x420/0x420 [ 50.790055] do_vfs_ioctl+0x1b1/0x1530 [ 50.790557] ? _cond_resched+0x14/0x30 [ 50.791213] ? ioctl_preallocate+0x2b0/0x2b0 [ 50.791813] ? selinux_capable+0x40/0x40 [ 50.792341] ? putname+0xf3/0x130 [ 50.792802] ? security_file_ioctl+0x7d/0xb0 [ 50.793509] ? security_file_ioctl+0x89/0xb0 [ 50.801454] SyS_ioctl+0x8f/0xc0 [ 50.801929] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 50.802577] RIP: 0033:0x43a429 [ 50.802986] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000203 ORIG_RAX: 0000000000000010 [ 50.804173] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043a429 [ 50.805641] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 00000000000002f2 [ 50.806772] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 50.807716] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 50.808660] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 51.755323] syzkaller645273: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 51.757314] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 51.758283] CPU: 3 PID: 3071 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 51.760175] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 51.761461] Call Trace: [ 51.761834] dump_stack+0x194/0x257 [ 51.762355] ? arch_local_irq_restore+0x53/0x53 [ 51.763013] ? flush_work+0x621/0x930 [ 51.764894] warn_alloc+0x1c2/0x2f0 [ 51.765418] ? zone_watermark_ok_safe+0x430/0x430 [ 51.766097] ? mutex_unlock+0xd/0x10 [ 51.766739] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 51.767601] ? warn_alloc+0x2f0/0x2f0 [ 51.767945] ? SyS_ioctl+0x8f/0xc0 [ 51.768262] ? warn_alloc+0x2f0/0x2f0 [ 51.768619] ? save_stack_trace+0x16/0x20 [ 51.769904] ? check_noncircular+0x20/0x20 [ 51.770616] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 51.771467] ? find_held_lock+0x39/0x1d0 [ 51.772148] ? lock_downgrade+0x990/0x990 [ 51.772779] ? check_same_owner+0x320/0x320 [ 51.773224] ? rcu_note_context_switch+0x710/0x710 [ 51.773726] ? check_noncircular+0x20/0x20 [ 51.774262] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 51.774974] ? __might_sleep+0x95/0x190 [ 51.775386] __alloc_pages_nodemask+0x9f7/0xd80 [ 51.775737] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 51.776179] ? __alloc_pages_nodemask+0xae5/0xd80 [ 51.776670] ? find_held_lock+0x39/0x1d0 [ 51.777249] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 51.777892] ? cache_grow_begin+0x31b/0x400 [ 51.778417] cache_grow_begin+0x86/0x400 [ 51.778936] fallback_alloc+0x150/0x2b0 [ 51.779306] ____cache_alloc_node+0x1cf/0x1e0 [ 51.779926] kmem_cache_alloc_trace+0x27d/0x750 [ 51.780484] ? lock_downgrade+0x990/0x990 [ 51.780954] kvm_dev_ioctl+0x216/0x1840 [ 51.781441] ? lock_release+0xd70/0xd70 [ 51.781921] ? install_new_memslots+0x420/0x420 [ 51.782406] ? avc_has_extended_perms+0x7fa/0x12c0 [ 51.782963] ? unwind_get_return_address+0x61/0xa0 [ 51.783544] ? avc_ss_reset+0x110/0x110 [ 51.784141] ? putname+0xee/0x130 [ 51.784967] ? save_stack+0xa3/0xd0 [ 51.785389] ? save_stack_trace+0x16/0x20 [ 51.785860] ? save_stack+0x43/0xd0 [ 51.786220] ? kasan_slab_free+0x71/0xc0 [ 51.786622] ? kmem_cache_free+0x77/0x280 [ 51.786924] ? putname+0xee/0x130 [ 51.787177] ? do_sys_open+0x31b/0x6d0 [ 51.787443] ? __lock_is_held+0xbc/0x140 [ 51.787989] ? check_same_owner+0x320/0x320 [ 51.788474] ? rcu_note_context_switch+0x710/0x710 [ 51.789193] ? install_new_memslots+0x420/0x420 [ 51.790616] do_vfs_ioctl+0x1b1/0x1530 [ 51.791984] ? _cond_resched+0x14/0x30 [ 51.792422] ? ioctl_preallocate+0x2b0/0x2b0 [ 51.792824] ? selinux_capable+0x40/0x40 [ 51.793110] ? putname+0xf3/0x130 [ 51.793366] ? security_file_ioctl+0x7d/0xb0 [ 51.793696] ? security_file_ioctl+0x89/0xb0 [ 51.794127] SyS_ioctl+0x8f/0xc0 [ 51.794464] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 51.794826] RIP: 0033:0x43a429 [ 51.795210] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 51.795806] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000043a429 [ 51.796953] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000304 [ 51.797902] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 51.799092] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000 [ 51.799666] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 51.800358] warn_alloc_show_mem: 1 callbacks suppressed [ 51.800757] Mem-Info: [ 51.801530] active_anon:3831 inactive_anon:42 isolated_anon:0 [ 51.801530] active_file:80 inactive_file:72 isolated_file:32 [ 51.801530] unevictable:0 dirty:4 writeback:0 unstable:0 [ 51.801530] slab_reclaimable:53718 slab_unreclaimable:328419 [ 51.801530] mapped:169 shmem:76 pagetables:387 bounce:0 [ 51.801530] free:17689 free_pcp:389 free_cma:0 [ 51.804721] Node 0 active_anon:7452kB inactive_anon:64kB active_file:32kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:104kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 51.810706] Node 1 active_anon:7876kB inactive_anon:104kB active_file:100kB inactive_file:192kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:76kB dirty:16kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 51.815583] Node 0 DMA free:4176kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 51.819239] lowmem_reserve[]: 0 886 886 886 [ 51.819886] Node 0 DMA32 free:36508kB min:36536kB low:45668kB high:54800kB active_anon:7400kB inactive_anon:64kB active_file:36kB inactive_file:32kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2080kB pagetables:956kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 51.823760] lowmem_reserve[]: 0 0 0 0 [ 51.824385] Node 1 DMA32 free:31540kB min:30404kB low:38004kB high:45604kB active_anon:7876kB inactive_anon:104kB active_file:100kB inactive_file:328kB unevictable:0kB writepending:16kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:2048kB pagetables:596kB bounce:0kB free_pcp:592kB local_pcp:0kB free_cma:0kB [ 51.830527] lowmem_reserve[]: 0 0 0 0 [ 51.831216] Node 0 DMA: 6*4kB (UME) 1*8kB (U) 1*16kB (U) 1*32kB (U) 2*64kB (ME) 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4176kB [ 51.833246] Node 0 DMA32: 476*4kB (UME) 472*8kB (UME) 188*16kB (UME) 112*32kB (UME) 61*64kB (UME) 10*128kB (M) 1*256kB (M) 3*512kB (UME) 1*1024kB (M) 2*2048kB (UE) 3*4096kB (M) = 36656kB [ 51.835702] Node 1 DMA32: 422*4kB (UME) 664*8kB (UMEH) 476*16kB (UMEH) 152*32kB (UMH) 67*64kB (UME) 25*128kB (UM) 7*256kB (UME) 1*512kB (E) 1*1024kB (M) 1*2048kB (M) 0*4096kB = 32344kB [ 51.838140] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 51.839415] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 51.840682] 185 total pagecache pages [ 51.841189] 0 pages in swap cache [ 51.841643] Swap cache stats: add 0, delete 0, find 0/0 [ 51.842477] Free swap = 0kB [ 51.842953] Total swap = 0kB [ 51.843375] 524186 pages RAM [ 51.844666] 0 pages HighMem/MovableOnly [ 51.847578] 103968 pages reserved [ 52.019550] syzkaller645273: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 52.020627] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 52.021055] CPU: 1 PID: 3066 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 52.021666] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 52.022328] Call Trace: [ 52.022525] dump_stack+0x194/0x257 [ 52.022836] ? arch_local_irq_restore+0x53/0x53 [ 52.023236] ? flush_work+0x621/0x930 [ 52.023578] warn_alloc+0x1c2/0x2f0 [ 52.023907] ? zone_watermark_ok_safe+0x430/0x430 [ 52.024330] ? mutex_unlock+0xd/0x10 [ 52.024689] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 52.025054] ? warn_alloc+0x2f0/0x2f0 [ 52.025361] ? SyS_ioctl+0x8f/0xc0 [ 52.025589] ? warn_alloc+0x2f0/0x2f0 [ 52.025853] ? save_stack_trace+0x16/0x20 [ 52.026175] ? check_noncircular+0x20/0x20 [ 52.026465] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 52.026838] ? find_held_lock+0x39/0x1d0 [ 52.027076] ? lock_downgrade+0x990/0x990 [ 52.027386] ? check_same_owner+0x320/0x320 [ 52.027756] ? rcu_note_context_switch+0x710/0x710 [ 52.028179] ? check_noncircular+0x20/0x20 [ 52.028548] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 52.029041] ? __might_sleep+0x95/0x190 [ 52.029275] __alloc_pages_nodemask+0x9f7/0xd80 [ 52.029664] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 52.030042] ? __alloc_pages_nodemask+0xae5/0xd80 [ 52.030316] ? find_held_lock+0x39/0x1d0 [ 52.030656] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 52.030953] ? cache_grow_begin+0x31b/0x400 [ 52.031321] cache_grow_begin+0x86/0x400 [ 52.031729] fallback_alloc+0x150/0x2b0 [ 52.032054] ____cache_alloc_node+0x1cf/0x1e0 [ 52.032369] kmem_cache_alloc_trace+0x27d/0x750 [ 52.032707] ? lock_downgrade+0x990/0x990 [ 52.033077] kvm_dev_ioctl+0x216/0x1840 [ 52.033408] ? lock_release+0xd70/0xd70 [ 52.033688] ? install_new_memslots+0x420/0x420 [ 52.034083] ? avc_has_extended_perms+0x7fa/0x12c0 [ 52.034485] ? unwind_get_return_address+0x61/0xa0 [ 52.034896] ? avc_ss_reset+0x110/0x110 [ 52.035207] ? putname+0xee/0x130 [ 52.035509] ? save_stack+0xa3/0xd0 [ 52.035808] ? save_stack_trace+0x16/0x20 [ 52.036144] ? save_stack+0x43/0xd0 [ 52.036439] ? kasan_slab_free+0x71/0xc0 [ 52.036767] ? kmem_cache_free+0x77/0x280 [ 52.037104] ? putname+0xee/0x130 [ 52.037388] ? do_sys_open+0x31b/0x6d0 [ 52.037772] ? __lock_is_held+0xbc/0x140 [ 52.038203] ? check_same_owner+0x320/0x320 [ 52.038606] ? rcu_note_context_switch+0x710/0x710 [ 52.039015] ? install_new_memslots+0x420/0x420 [ 52.039391] do_vfs_ioctl+0x1b1/0x1530 [ 52.039716] ? _cond_resched+0x14/0x30 [ 52.040035] ? ioctl_preallocate+0x2b0/0x2b0 [ 52.040602] ? selinux_capable+0x40/0x40 [ 52.040943] ? putname+0xf3/0x130 [ 52.041241] ? security_file_ioctl+0x7d/0xb0 [ 52.041595] ? security_file_ioctl+0x89/0xb0 [ 52.041960] SyS_ioctl+0x8f/0xc0 [ 52.042244] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 52.042631] RIP: 0033:0x43a429 [ 52.042931] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 [ 52.043701] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 000000000043a429 [ 52.044411] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 000000000000032f [ 52.044970] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 52.045466] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000 [ 52.046082] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 52.048889] syzkaller645273: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 52.050735] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 52.051304] CPU: 2 PID: 3068 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 52.057551] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 52.058477] Call Trace: [ 52.058963] dump_stack+0x194/0x257 [ 52.060684] ? arch_local_irq_restore+0x53/0x53 [ 52.061223] ? isolate_lru_page+0x11d0/0x11d0 [ 52.061600] warn_alloc+0x1c2/0x2f0 [ 52.061891] ? zone_watermark_ok_safe+0x430/0x430 [ 52.062284] ? rcu_note_context_switch+0x710/0x710 [ 52.063120] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 52.063590] ? warn_alloc+0x2f0/0x2f0 [ 52.063922] ? SyS_ioctl+0x8f/0xc0 [ 52.064234] ? warn_alloc+0x2f0/0x2f0 [ 52.064497] ? save_stack_trace+0x16/0x20 [ 52.064864] ? check_noncircular+0x20/0x20 [ 52.065167] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 52.065625] ? find_held_lock+0x39/0x1d0 [ 52.065986] ? lock_downgrade+0x990/0x990 [ 52.066362] ? check_same_owner+0x320/0x320 [ 52.066739] ? rcu_note_context_switch+0x710/0x710 [ 52.067166] ? check_noncircular+0x20/0x20 [ 52.067538] ? __fsnotify_update_child_dentry_flags.part.2+0x2a0/0x2a0 [ 52.068116] ? __might_sleep+0x95/0x190 [ 52.068467] __alloc_pages_nodemask+0x9f7/0xd80 [ 52.068875] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 52.069205] ? __alloc_pages_nodemask+0xae5/0xd80 [ 52.069537] ? find_held_lock+0x39/0x1d0 [ 52.069894] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 52.070249] ? cache_grow_begin+0x31b/0x400 [ 52.070633] cache_grow_begin+0x86/0x400 [ 52.070927] fallback_alloc+0x150/0x2b0 [ 52.071220] ____cache_alloc_node+0x1cf/0x1e0 [ 52.071584] kmem_cache_alloc_trace+0x27d/0x750 [ 52.072093] ? lock_downgrade+0x990/0x990 [ 52.072607] kvm_dev_ioctl+0x216/0x1840 [ 52.073068] ? lock_release+0xd70/0xd70 [ 52.073753] ? install_new_memslots+0x420/0x420 [ 52.074245] ? avc_has_extended_perms+0x7fa/0x12c0 [ 52.074711] ? unwind_get_return_address+0x61/0xa0 [ 52.075191] ? avc_ss_reset+0x110/0x110 [ 52.075662] ? putname+0xee/0x130 [ 52.076356] ? save_stack+0xa3/0xd0 [ 52.076951] ? save_stack_trace+0x16/0x20 [ 52.077634] ? save_stack+0x43/0xd0 [ 52.078138] ? kasan_slab_free+0x71/0xc0 [ 52.078707] ? kmem_cache_free+0x77/0x280 [ 52.079387] ? putname+0xee/0x130 [ 52.079899] ? do_sys_open+0x31b/0x6d0 [ 52.080526] ? __lock_is_held+0xbc/0x140 [ 52.081138] ? check_same_owner+0x320/0x320 [ 52.081545] ? rcu_note_context_switch+0x710/0x710 [ 52.082042] ? install_new_memslots+0x420/0x420 [ 52.082458] do_vfs_ioctl+0x1b1/0x1530 [ 52.082789] ? _cond_resched+0x14/0x30 [ 52.083584] ? ioctl_preallocate+0x2b0/0x2b0 [ 52.084233] ? selinux_capable+0x40/0x40 [ 52.084643] ? putname+0xf3/0x130 [ 52.084941] ? security_file_ioctl+0x7d/0xb0 [ 52.085331] ? security_file_ioctl+0x89/0xb0 [ 52.085766] SyS_ioctl+0x8f/0xc0 [ 52.086087] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 52.086472] RIP: 0033:0x43a429 [ 52.086811] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000203 ORIG_RAX: 0000000000000010 [ 52.087571] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000043a429 [ 52.088163] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 00000000000002c8 [ 52.089112] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 52.089730] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 52.090425] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 52.464714] syzkaller645273: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 52.465830] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 52.466323] CPU: 0 PID: 3071 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 52.467398] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 52.468013] Call Trace: [ 52.468189] dump_stack+0x194/0x257 [ 52.468431] ? arch_local_irq_restore+0x53/0x53 [ 52.468751] ? isolate_lru_page+0x11d0/0x11d0 [ 52.469090] warn_alloc+0x1c2/0x2f0 [ 52.469329] ? zone_watermark_ok_safe+0x430/0x430 [ 52.469707] ? rcu_note_context_switch+0x710/0x710 [ 52.470046] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 52.470495] ? warn_alloc+0x2f0/0x2f0 [ 52.470752] ? SyS_ioctl+0x8f/0xc0 [ 52.471063] ? warn_alloc+0x2f0/0x2f0 [ 52.471322] ? save_stack_trace+0x16/0x20 [ 52.471697] ? check_noncircular+0x20/0x20 [ 52.471990] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 52.472439] ? save_stack_trace+0x16/0x20 [ 52.472716] ? __lock_acquire+0x20f4/0x4620 [ 52.473100] ? find_held_lock+0x39/0x1d0 [ 52.473381] ? lock_downgrade+0x990/0x990 [ 52.473756] ? check_same_owner+0x320/0x320 [ 52.474079] ? rcu_note_context_switch+0x710/0x710 [ 52.474507] ? check_noncircular+0x20/0x20 [ 52.474878] ? __might_sleep+0x95/0x190 [ 52.475148] __alloc_pages_nodemask+0x9f7/0xd80 [ 52.475561] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 52.475993] ? __alloc_pages_nodemask+0xae5/0xd80 [ 52.476321] ? find_held_lock+0x39/0x1d0 [ 52.476676] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 52.477026] ? cache_grow_begin+0x31b/0x400 [ 52.477405] cache_grow_begin+0x86/0x400 [ 52.477721] fallback_alloc+0x150/0x2b0 [ 52.477997] ____cache_alloc_node+0x1cf/0x1e0 [ 52.478388] kmem_cache_alloc_trace+0x27d/0x750 [ 52.478748] ? lock_downgrade+0x990/0x990 [ 52.479107] ? lock_release+0xd70/0xd70 [ 52.479375] ? compat_start_thread+0x80/0x80 [ 52.479776] kvm_dev_ioctl+0x216/0x1840 [ 52.480044] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.480479] ? lock_release+0xd70/0xd70 [ 52.480807] ? install_new_memslots+0x420/0x420 [ 52.481130] ? avc_has_extended_perms+0x7fa/0x12c0 [ 52.481556] ? __schedule+0x92e/0x2070 [ 52.481900] ? avc_ss_reset+0x110/0x110 [ 52.482176] ? lock_downgrade+0x990/0x990 [ 52.482554] ? check_same_owner+0x320/0x320 [ 52.482843] ? __handle_mm_fault+0x39c0/0x39c0 [ 52.483241] ? rcu_note_context_switch+0x710/0x710 [ 52.483602] ? install_new_memslots+0x420/0x420 [ 52.483922] do_vfs_ioctl+0x1b1/0x1530 [ 52.484256] ? _cond_resched+0x14/0x30 [ 52.484520] ? ioctl_preallocate+0x2b0/0x2b0 [ 52.484896] ? selinux_capable+0x40/0x40 [ 52.485169] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 52.485655] ? security_file_ioctl+0x7d/0xb0 [ 52.485998] ? security_file_ioctl+0x89/0xb0 [ 52.486306] SyS_ioctl+0x8f/0xc0 [ 52.486604] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 52.486925] RIP: 0033:0x43a429 [ 52.487200] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000203 ORIG_RAX: 0000000000000010 [ 52.487704] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000043a429 [ 52.488317] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000305 [ 52.489380] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 52.489920] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 52.490452] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 52.729938] syzkaller645273 invoked oom-killer: gfp_mask=0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null), order=1, oom_score_adj=0 [ 52.732401] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 52.733397] CPU: 2 PID: 3069 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 52.734261] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 52.735016] Call Trace: [ 52.735256] dump_stack+0x194/0x257 [ 52.735627] ? arch_local_irq_restore+0x53/0x53 [ 52.736073] ? check_noncircular+0x20/0x20 [ 52.736728] dump_header+0x234/0xa0e [ 52.737095] ? pagefault_out_of_memory+0x152/0x152 [ 52.737536] ? lock_acquire+0x1d5/0x580 [ 52.737905] ? ___ratelimit+0x152/0x630 [ 52.738281] ? do_raw_spin_trylock+0x190/0x190 [ 52.738702] ? mark_held_locks+0xb2/0x100 [ 52.739080] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 52.739535] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.739971] ? trace_hardirqs_on+0xd/0x10 [ 52.740351] ? ___ratelimit+0x95/0x630 [ 52.740691] ? idr_get_free+0xff0/0xff0 [ 52.741056] oom_kill_process+0x86d/0x13d0 [ 52.741432] ? lock_downgrade+0x990/0x990 [ 52.741802] ? oom_evaluate_task+0x480/0x480 [ 52.742201] ? find_lock_task_mm+0x23b/0x460 [ 52.742599] ? do_raw_spin_trylock+0x190/0x190 [ 52.742998] ? task_will_free_mem+0xaa0/0xaa0 [ 52.743332] ? check_noncircular+0x20/0x20 [ 52.743671] ? lock_downgrade+0x990/0x990 [ 52.743996] ? _raw_spin_unlock+0x22/0x30 [ 52.744700] ? oom_badness+0xdf/0xb80 [ 52.745035] ? find_held_lock+0x39/0x1d0 [ 52.745363] ? lock_downgrade+0x990/0x990 [ 52.745680] ? oom_unkillable_task+0x33d/0x4c0 [ 52.746043] ? out_of_memory+0x8c1/0x11d0 [ 52.746365] ? oom_reaper+0x4d0/0x4d0 [ 52.746665] ? lock_release+0xd70/0xd70 [ 52.746975] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 52.747379] ? oom_evaluate_task+0x284/0x480 [ 52.747737] out_of_memory+0x7dd/0x11d0 [ 52.748065] ? oom_killer_disable+0x310/0x310 [ 52.748416] ? mutex_trylock+0x23a/0x2d0 [ 52.748733] ? rcu_pm_notify+0xc0/0xc0 [ 52.749042] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 52.749463] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 52.749876] ? warn_alloc+0x2f0/0x2f0 [ 52.750167] ? do_vfs_ioctl+0x1b1/0x1530 [ 52.750489] ? warn_alloc+0x2f0/0x2f0 [ 52.750788] ? save_stack_trace+0x16/0x20 [ 52.751115] ? check_noncircular+0x20/0x20 [ 52.751456] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 52.751827] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 52.752197] ? kvm_dev_ioctl+0xb4e/0x1840 [ 52.752484] ? do_vfs_ioctl+0x1b1/0x1530 [ 52.752766] ? entry_SYSCALL_64_fastpath+0x1f/0xbe [ 52.753124] ? find_held_lock+0x39/0x1d0 [ 52.753434] ? check_same_owner+0x320/0x320 [ 52.753735] ? find_held_lock+0x39/0x1d0 [ 52.754034] ? __might_sleep+0x95/0x190 [ 52.754319] __alloc_pages_nodemask+0x9f7/0xd80 [ 52.754732] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 52.755120] ? __alloc_pages_nodemask+0xae5/0xd80 [ 52.755601] ? find_held_lock+0x39/0x1d0 [ 52.755975] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 52.756484] ? cache_grow_begin+0x31b/0x400 [ 52.756919] cache_grow_begin+0x86/0x400 [ 52.757327] fallback_alloc+0x150/0x2b0 [ 52.757735] ____cache_alloc_node+0x1cf/0x1e0 [ 52.758191] kmem_cache_alloc_trace+0x27d/0x750 [ 52.758657] ? __debugfs_create_file+0x2cc/0x3e0 [ 52.759068] kvm_uevent_notify_change.part.38+0x174/0x430 [ 52.759454] kvm_dev_ioctl+0x716/0x1840 [ 52.759858] ? install_new_memslots+0x420/0x420 [ 52.760341] ? avc_has_extended_perms+0x7fa/0x12c0 [ 52.760829] ? unwind_get_return_address+0x61/0xa0 [ 52.761332] ? avc_ss_reset+0x110/0x110 [ 52.761736] ? putname+0xee/0x130 [ 52.762082] ? save_stack+0xa3/0xd0 [ 52.762449] ? save_stack_trace+0x16/0x20 [ 52.762867] ? save_stack+0x43/0xd0 [ 52.763235] ? kmem_cache_free+0x77/0x280 [ 52.763654] ? putname+0xee/0x130 [ 52.764007] ? do_sys_open+0x31b/0x6d0 [ 52.764403] ? __lock_is_held+0xbc/0x140 [ 52.764842] ? check_same_owner+0x320/0x320 [ 52.765300] ? install_new_memslots+0x420/0x420 [ 52.766392] do_vfs_ioctl+0x1b1/0x1530 [ 52.766837] ? _cond_resched+0x14/0x30 [ 52.767220] ? ioctl_preallocate+0x2b0/0x2b0 [ 52.767550] ? selinux_capable+0x40/0x40 [ 52.767846] ? putname+0xf3/0x130 [ 52.768104] ? security_file_ioctl+0x7d/0xb0 [ 52.768490] ? security_file_ioctl+0x89/0xb0 [ 52.768823] SyS_ioctl+0x8f/0xc0 [ 52.769023] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 52.769300] RIP: 0033:0x43a429 [ 52.769544] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000203 ORIG_RAX: 0000000000000010 [ 52.770158] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000043a429 [ 52.770623] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 00000000000002f9 [ 52.771432] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 52.772245] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 52.772949] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 52.773726] Mem-Info: [ 52.773967] active_anon:3835 inactive_anon:41 isolated_anon:0 [ 52.773967] active_file:51 inactive_file:28 isolated_file:0 [ 52.773967] unevictable:0 dirty:0 writeback:0 unstable:0 [ 52.773967] slab_reclaimable:53758 slab_unreclaimable:328486 [ 52.773967] mapped:12 shmem:76 pagetables:388 bounce:0 [ 52.773967] free:18057 free_pcp:115 free_cma:0 [ 52.777442] Node 0 active_anon:7452kB inactive_anon:64kB active_file:32kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:104kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 52.780403] Node 1 active_anon:7888kB inactive_anon:100kB active_file:220kB inactive_file:192kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:260kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 52.783273] Node 0 DMA free:4176kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 52.785993] lowmem_reserve[]: 0 886 886 886 [ 52.786498] Node 0 DMA32 free:36208kB min:36536kB low:45668kB high:54800kB active_anon:7400kB inactive_anon:64kB active_file:48kB inactive_file:16kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2080kB pagetables:952kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 52.790318] lowmem_reserve[]: 0 0 0 0 [ 52.790608] Node 1 DMA32 free:32112kB min:30404kB low:38004kB high:45604kB active_anon:7888kB inactive_anon:100kB active_file:60kB inactive_file:132kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:2048kB pagetables:600kB bounce:0kB free_pcp:24kB local_pcp:0kB free_cma:0kB [ 52.793736] lowmem_reserve[]: 0 0 0 0 [ 52.795234] Node 0 DMA: 6*4kB (UME) 1*8kB (U) 1*16kB (U) 1*32kB (U) 2*64kB (ME) 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4176kB [ 52.798278] Node 0 DMA32: 455*4kB (UM) 450*8kB (UME) 185*16kB (UME) 111*32kB (UME) 61*64kB (UME) 10*128kB (M) 1*256kB (M) 3*512kB (UME) 1*1024kB (M) 2*2048kB (UE) 3*4096kB (M) = 36316kB [ 52.800464] Node 1 DMA32: 284*4kB (UM) 665*8kB (UMEH) 474*16kB (UMH) 152*32kB (UMH) 67*64kB (UME) 25*128kB (UM) 7*256kB (UME) 1*512kB (E) 1*1024kB (M) 1*2048kB (M) 0*4096kB = 31768kB [ 52.802501] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 52.803589] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 52.805113] 213 total pagecache pages [ 52.805492] 0 pages in swap cache [ 52.805833] Swap cache stats: add 0, delete 0, find 0/0 [ 52.806804] Free swap = 0kB [ 52.807260] Total swap = 0kB [ 52.807788] 524186 pages RAM [ 52.808203] 0 pages HighMem/MovableOnly [ 52.808627] 103968 pages reserved [ 52.808971] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 52.810544] [ 1523] 0 1523 7117 1907 20 3 0 -1000 udevd [ 52.811573] [ 2815] 0 2815 2493 573 8 3 0 0 dhclient [ 52.812488] [ 2944] 0 2944 30604 145 25 3 0 0 rsyslogd [ 52.813229] [ 2980] 0 2980 4725 50 15 3 0 0 cron [ 52.814972] [ 3005] 0 3005 12490 153 27 3 0 -1000 sshd [ 52.816113] [ 3032] 0 3032 3694 40 13 3 0 0 getty [ 52.817863] [ 3033] 0 3033 3694 40 13 3 0 0 getty [ 52.818908] [ 3034] 0 3034 3694 39 13 3 0 0 getty [ 52.819707] [ 3035] 0 3035 3694 40 13 3 0 0 getty [ 52.820636] [ 3036] 0 3036 3694 39 13 3 0 0 getty [ 52.822246] [ 3037] 0 3037 3694 41 13 3 0 0 getty [ 52.823213] [ 3038] 0 3038 3649 40 13 3 0 0 getty [ 52.824229] [ 3040] 0 3040 5382 176 15 3 0 -1000 udevd [ 52.825163] [ 3042] 0 3042 5381 177 15 3 0 -1000 udevd [ 52.825959] [ 3061] 0 3061 17820 197 38 3 0 0 sshd [ 52.826574] [ 3063] 0 3063 282 1 3 2 0 0 syzkaller645273 [ 52.827479] [ 3064] 0 3064 4377 12 4 2 0 0 syzkaller645273 [ 52.828185] [ 3065] 0 3065 4377 12 4 2 0 0 syzkaller645273 [ 52.829003] [ 3066] 0 3066 4377 12 3 2 0 0 syzkaller645273 [ 52.830047] [ 3067] 0 3067 4377 12 4 2 0 0 syzkaller645273 [ 52.830815] [ 3068] 0 3068 4377 12 4 2 0 0 syzkaller645273 [ 52.831617] [ 3069] 0 3069 4377 12 4 2 0 0 syzkaller645273 [ 52.832386] [ 3070] 0 3070 4377 12 4 2 0 0 syzkaller645273 [ 52.833263] [ 3071] 0 3071 4377 12 4 2 0 0 syzkaller645273 [ 52.834109] [ 3077] 0 3077 5381 176 15 3 0 -1000 udevd [ 52.834883] [ 3082] 0 3082 5381 174 15 3 0 -1000 udevd [ 52.835772] [ 3085] 0 3085 5381 176 15 3 0 -1000 udevd [ 52.836620] [ 3093] 0 3093 5381 176 15 3 0 -1000 udevd [ 52.837440] [ 3098] 0 3098 5334 135 15 3 0 -1000 udevd [ 52.838203] [ 3110] 0 3110 5334 137 15 3 0 -1000 udevd [ 52.838944] Out of memory: Kill process 2815 (dhclient) score 1 or sacrifice child [ 52.839732] Killed process 2815 (dhclient) total-vm:9972kB, anon-rss:2292kB, file-rss:0kB, shmem-rss:0kB [ 53.056306] syzkaller645273 invoked oom-killer: gfp_mask=0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null), order=1, oom_score_adj=0 [ 53.057690] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 53.058312] CPU: 0 PID: 3071 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 53.059156] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 53.059934] Call Trace: [ 53.060189] dump_stack+0x194/0x257 [ 53.060549] ? arch_local_irq_restore+0x53/0x53 [ 53.061003] ? check_noncircular+0x20/0x20 [ 53.061415] dump_header+0x234/0xa0e [ 53.061787] ? pagefault_out_of_memory+0x152/0x152 [ 53.062262] ? lock_acquire+0x1d5/0x580 [ 53.062639] ? ___ratelimit+0x152/0x630 [ 53.063026] ? do_raw_spin_trylock+0x190/0x190 [ 53.063495] ? mark_held_locks+0xb2/0x100 [ 53.063892] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 53.064629] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.065188] ? trace_hardirqs_on+0xd/0x10 [ 53.065768] ? ___ratelimit+0x95/0x630 [ 53.066376] ? idr_get_free+0xff0/0xff0 [ 53.067004] oom_kill_process+0x86d/0x13d0 [ 53.067655] ? lock_downgrade+0x990/0x990 [ 53.068061] ? oom_evaluate_task+0x480/0x480 [ 53.068497] ? find_lock_task_mm+0x23b/0x460 [ 53.068915] ? do_raw_spin_trylock+0x190/0x190 [ 53.069418] ? task_will_free_mem+0xaa0/0xaa0 [ 53.069844] ? check_noncircular+0x20/0x20 [ 53.070253] ? lock_downgrade+0x990/0x990 [ 53.070665] ? _raw_spin_unlock+0x22/0x30 [ 53.071060] ? oom_badness+0xdf/0xb80 [ 53.071431] ? find_held_lock+0x39/0x1d0 [ 53.071882] ? lock_downgrade+0x990/0x990 [ 53.072295] ? oom_unkillable_task+0x33d/0x4c0 [ 53.072699] ? out_of_memory+0x8c1/0x11d0 [ 53.073095] ? oom_reaper+0x4d0/0x4d0 [ 53.073463] ? lock_release+0xd70/0xd70 [ 53.073840] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 53.074325] ? oom_evaluate_task+0x284/0x480 [ 53.074750] out_of_memory+0x7dd/0x11d0 [ 53.075140] ? oom_killer_disable+0x310/0x310 [ 53.075566] ? mutex_trylock+0x23a/0x2d0 [ 53.075977] ? rcu_pm_notify+0xc0/0xc0 [ 53.076349] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 53.076895] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 53.077402] ? warn_alloc+0x2f0/0x2f0 [ 53.077794] ? do_sys_open+0x2e7/0x6d0 [ 53.078169] ? warn_alloc+0x2f0/0x2f0 [ 53.078534] ? save_stack_trace+0x16/0x20 [ 53.078941] ? check_noncircular+0x20/0x20 [ 53.079356] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 53.079853] ? lru_cache_add+0x1c7/0x3a0 [ 53.080241] ? lru_cache_add_file+0x20/0x20 [ 53.080673] ? find_held_lock+0x39/0x1d0 [ 53.081098] ? check_same_owner+0x320/0x320 [ 53.081519] ? __might_sleep+0x95/0x190 [ 53.081900] __alloc_pages_nodemask+0x9f7/0xd80 [ 53.082349] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.082824] ? __alloc_pages_nodemask+0xae5/0xd80 [ 53.083282] ? find_held_lock+0x39/0x1d0 [ 53.083676] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.084175] ? cache_grow_begin+0x31b/0x400 [ 53.084594] cache_grow_begin+0x86/0x400 [ 53.084998] fallback_alloc+0x150/0x2b0 [ 53.085390] ____cache_alloc_node+0x1cf/0x1e0 [ 53.085780] kmem_cache_alloc+0x287/0x760 [ 53.086609] getname_flags+0xcb/0x580 [ 53.086971] ? do_page_fault+0x70/0x70 [ 53.087347] getname+0x19/0x20 [ 53.087667] do_sys_open+0x2e7/0x6d0 [ 53.088027] ? filp_open+0x70/0x70 [ 53.088385] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.088862] SyS_openat+0x30/0x40 [ 53.089192] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 53.089642] RIP: 0033:0x43a429 [ 53.089943] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 53.090667] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000043a429 [ 53.091355] RDX: 0000000000000000 RSI: 0000000020017000 RDI: ffffffffffffff9c [ 53.092035] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 53.092728] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 53.093407] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 53.094217] Mem-Info: [ 53.095057] active_anon:3262 inactive_anon:41 isolated_anon:0 [ 53.095057] active_file:18 inactive_file:41 isolated_file:32 [ 53.095057] unevictable:0 dirty:0 writeback:0 unstable:0 [ 53.095057] slab_reclaimable:53810 slab_unreclaimable:328920 [ 53.095057] mapped:41 shmem:76 pagetables:381 bounce:0 [ 53.095057] free:18016 free_pcp:93 free_cma:0 [ 53.097053] Node 0 active_anon:5156kB inactive_anon:64kB active_file:32kB inactive_file:132kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:104kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 53.099853] Node 1 active_anon:7892kB inactive_anon:100kB active_file:40kB inactive_file:188kB unevictable:0kB isolated(anon):0kB isolated(file):128kB mapped:156kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.104402] Node 0 DMA free:4176kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 53.107158] lowmem_reserve[]: 0 886 886 886 [ 53.108651] Node 0 DMA32 free:36460kB min:36536kB low:45668kB high:54800kB active_anon:5104kB inactive_anon:64kB active_file:32kB inactive_file:232kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2048kB pagetables:916kB bounce:0kB free_pcp:240kB local_pcp:240kB free_cma:0kB [ 53.111555] lowmem_reserve[]: 0 0 0 0 [ 53.111947] Node 1 DMA32 free:30644kB min:30404kB low:38004kB high:45604kB active_anon:7892kB inactive_anon:100kB active_file:0kB inactive_file:868kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:2048kB pagetables:608kB bounce:0kB free_pcp:348kB local_pcp:116kB free_cma:0kB [ 53.114619] lowmem_reserve[]: 0 0 0 0 [ 53.114996] Node 0 DMA: 6*4kB (UME) 1*8kB (U) 1*16kB (U) 1*32kB (U) 2*64kB (ME) 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4176kB [ 53.116526] Node 0 DMA32: 330*4kB (UM) 405*8kB (UM) 217*16kB (UME) 141*32kB (UME) 70*64kB (UME) 12*128kB (M) 2*256kB (M) 2*512kB (ME) 2*1024kB (UM) 1*2048kB (E) 3*4096kB (M) = 36480kB [ 53.118230] Node 1 DMA32: 64*4kB (UME) 656*8kB (UMEH) 475*16kB (UMEH) 153*32kB (UMEH) 67*64kB (UME) 25*128kB (UM) 6*256kB (UM) 1*512kB (E) 1*1024kB (M) 1*2048kB (M) 0*4096kB = 30608kB [ 53.120176] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.121527] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.122532] 459 total pagecache pages [ 53.122904] 0 pages in swap cache [ 53.123256] Swap cache stats: add 0, delete 0, find 0/0 [ 53.123741] Free swap = 0kB [ 53.124045] Total swap = 0kB [ 53.124336] 524186 pages RAM [ 53.124625] 0 pages HighMem/MovableOnly [ 53.124985] 103968 pages reserved [ 53.125368] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 53.126438] [ 1523] 0 1523 7117 1907 20 3 0 -1000 udevd [ 53.127330] [ 2944] 0 2944 30604 145 25 3 0 0 rsyslogd [ 53.128599] [ 2980] 0 2980 4725 50 15 3 0 0 cron [ 53.129462] [ 3005] 0 3005 12490 153 27 3 0 -1000 sshd [ 53.130288] [ 3032] 0 3032 3694 40 13 3 0 0 getty [ 53.131123] [ 3033] 0 3033 3694 40 13 3 0 0 getty [ 53.132313] [ 3034] 0 3034 3694 39 13 3 0 0 getty [ 53.133161] [ 3035] 0 3035 3694 40 13 3 0 0 getty [ 53.133977] [ 3036] 0 3036 3694 39 13 3 0 0 getty [ 53.134838] [ 3037] 0 3037 3694 41 13 3 0 0 getty [ 53.135686] [ 3038] 0 3038 3649 40 13 3 0 0 getty [ 53.136531] [ 3040] 0 3040 5381 188 15 3 0 -1000 udevd [ 53.137406] [ 3042] 0 3042 5381 177 15 3 0 -1000 udevd [ 53.138285] [ 3061] 0 3061 17820 197 38 3 0 0 sshd [ 53.139151] [ 3063] 0 3063 282 1 3 2 0 0 syzkaller645273 [ 53.140079] [ 3064] 0 3064 4377 12 4 2 0 0 syzkaller645273 [ 53.141059] [ 3065] 0 3065 4377 12 4 2 0 0 syzkaller645273 [ 53.141972] [ 3066] 0 3066 4377 12 4 2 0 0 syzkaller645273 [ 53.142920] [ 3067] 0 3067 4377 12 4 2 0 0 syzkaller645273 [ 53.143841] [ 3068] 0 3068 4377 12 4 2 0 0 syzkaller645273 [ 53.144798] [ 3069] 0 3069 4377 18 4 2 0 0 syzkaller645273 [ 53.145743] [ 3070] 0 3070 4377 12 4 2 0 0 syzkaller645273 [ 53.146693] [ 3071] 0 3071 4377 12 4 2 0 0 syzkaller645273 [ 53.147647] [ 3077] 0 3077 5381 176 15 3 0 -1000 udevd [ 53.148510] [ 3082] 0 3082 5381 174 15 3 0 -1000 udevd [ 53.149355] [ 3085] 0 3085 5381 176 15 3 0 -1000 udevd [ 53.150807] [ 3093] 0 3093 5381 176 15 3 0 -1000 udevd [ 53.151441] [ 3098] 0 3098 5334 135 15 3 0 -1000 udevd [ 53.152040] [ 3110] 0 3110 5334 137 15 3 0 -1000 udevd [ 53.152618] Out of memory: Kill process 3061 (sshd) score 0 or sacrifice child [ 53.153151] Killed process 3063 (syzkaller645273) total-vm:1128kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 53.498398] syzkaller645273 invoked oom-killer: gfp_mask=0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null), order=1, oom_score_adj=0 [ 53.499608] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 53.500040] CPU: 1 PID: 3064 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 53.500901] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 53.501770] Call Trace: [ 53.502148] dump_stack+0x194/0x257 [ 53.502518] ? arch_local_irq_restore+0x53/0x53 [ 53.503019] ? check_noncircular+0x20/0x20 [ 53.503553] dump_header+0x234/0xa0e [ 53.504242] ? pagefault_out_of_memory+0x152/0x152 [ 53.504720] ? lock_acquire+0x1d5/0x580 [ 53.507900] ? ___ratelimit+0x152/0x630 [ 53.508343] ? do_raw_spin_trylock+0x190/0x190 [ 53.508863] ? mark_held_locks+0xb2/0x100 [ 53.509350] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 53.509901] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.510465] ? trace_hardirqs_on+0xd/0x10 [ 53.510880] ? ___ratelimit+0x95/0x630 [ 53.511278] ? idr_get_free+0xff0/0xff0 [ 53.511706] oom_kill_process+0x86d/0x13d0 [ 53.512134] ? lock_downgrade+0x990/0x990 [ 53.513032] ? oom_evaluate_task+0x480/0x480 [ 53.513482] ? find_lock_task_mm+0x23b/0x460 [ 53.513931] ? do_raw_spin_trylock+0x190/0x190 [ 53.514407] ? task_will_free_mem+0xaa0/0xaa0 [ 53.514874] ? check_noncircular+0x20/0x20 [ 53.515311] ? lock_downgrade+0x990/0x990 [ 53.515756] ? _raw_spin_unlock+0x22/0x30 [ 53.516177] ? oom_badness+0xdf/0xb80 [ 53.516573] ? find_held_lock+0x39/0x1d0 [ 53.516998] ? lock_downgrade+0x990/0x990 [ 53.517404] ? oom_unkillable_task+0x33d/0x4c0 [ 53.517861] ? out_of_memory+0x8c1/0x11d0 [ 53.518278] ? oom_reaper+0x4d0/0x4d0 [ 53.518763] ? lock_release+0xd70/0xd70 [ 53.519426] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 53.519960] ? oom_evaluate_task+0x284/0x480 [ 53.520415] out_of_memory+0x7dd/0x11d0 [ 53.520800] ? schedule_timeout+0x90/0x250 [ 53.521230] ? oom_killer_disable+0x310/0x310 [ 53.521674] ? mutex_trylock+0x23a/0x2d0 [ 53.522086] ? rcu_pm_notify+0xc0/0xc0 [ 53.522482] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 53.523026] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 53.523588] ? warn_alloc+0x2f0/0x2f0 [ 53.523971] ? do_sys_open+0x2e7/0x6d0 [ 53.524367] ? warn_alloc+0x2f0/0x2f0 [ 53.524762] ? save_stack_trace+0x16/0x20 [ 53.525193] ? check_noncircular+0x20/0x20 [ 53.525619] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 53.526146] ? lock_release+0xd70/0xd70 [ 53.526551] ? check_same_owner+0x320/0x320 [ 53.526995] ? find_held_lock+0x39/0x1d0 [ 53.527451] ? check_same_owner+0x320/0x320 [ 53.527905] ? __might_sleep+0x95/0x190 [ 53.528302] __alloc_pages_nodemask+0x9f7/0xd80 [ 53.528783] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.529283] ? __alloc_pages_nodemask+0xae5/0xd80 [ 53.529768] ? find_held_lock+0x39/0x1d0 [ 53.530177] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.530698] ? cache_grow_begin+0x31b/0x400 [ 53.531133] cache_grow_begin+0x86/0x400 [ 53.531553] fallback_alloc+0x150/0x2b0 [ 53.531964] ____cache_alloc_node+0x1cf/0x1e0 [ 53.532425] kmem_cache_alloc+0x287/0x760 [ 53.532862] getname_flags+0xcb/0x580 [ 53.533223] ? do_page_fault+0x70/0x70 [ 53.534171] getname+0x19/0x20 [ 53.534498] do_sys_open+0x2e7/0x6d0 [ 53.534866] ? filp_open+0x70/0x70 [ 53.535231] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.535754] SyS_openat+0x30/0x40 [ 53.536110] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 53.537662] RIP: 0033:0x43a429 [ 53.537983] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 53.538759] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043a429 [ 53.539473] RDX: 0000000000000000 RSI: 0000000020017000 RDI: ffffffffffffff9c [ 53.540210] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 53.540932] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 53.541604] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 53.542449] Mem-Info: [ 53.546473] active_anon:3254 inactive_anon:41 isolated_anon:0 [ 53.546473] active_file:29 inactive_file:92 isolated_file:0 [ 53.546473] unevictable:0 dirty:0 writeback:0 unstable:0 [ 53.546473] slab_reclaimable:53832 slab_unreclaimable:329044 [ 53.546473] mapped:15 shmem:76 pagetables:378 bounce:0 [ 53.546473] free:17987 free_pcp:60 free_cma:0 [ 53.553254] Node 0 active_anon:5156kB inactive_anon:64kB active_file:44kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:104kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.558050] Node 1 active_anon:7860kB inactive_anon:100kB active_file:60kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.561576] Node 0 DMA free:4176kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 53.563636] lowmem_reserve[]: 0 886 886 886 [ 53.563980] Node 0 DMA32 free:36512kB min:36536kB low:45668kB high:54800kB active_anon:5104kB inactive_anon:64kB active_file:0kB inactive_file:80kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2016kB pagetables:916kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 53.565908] lowmem_reserve[]: 0 0 0 0 [ 53.566208] Node 1 DMA32 free:31956kB min:30404kB low:38004kB high:45604kB active_anon:7860kB inactive_anon:100kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:2048kB pagetables:596kB bounce:0kB free_pcp:4kB local_pcp:0kB free_cma:0kB [ 53.568333] lowmem_reserve[]: 0 0 0 0 [ 53.568746] Node 0 DMA: 6*4kB (UME) 1*8kB (U) 1*16kB (U) 1*32kB (U) 2*64kB (ME) 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4176kB [ 53.570036] Node 0 DMA32: 432*4kB (UM) 390*8kB (UMH) 215*16kB (UMH) 142*32kB (UMEH) 70*64kB (UME) 12*128kB (M) 3*256kB (UM) 3*512kB (UME) 1*1024kB (M) 1*2048kB (E) 3*4096kB (M) = 36512kB [ 53.571221] Node 1 DMA32: 430*4kB (UM) 651*8kB (UMEH) 478*16kB (UMEH) 157*32kB (UMEH) 67*64kB (UME) 25*128kB (UM) 7*256kB (UME) 0*512kB 1*1024kB (M) 1*2048kB (M) 0*4096kB = 31952kB [ 53.572671] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.573401] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.574214] 129 total pagecache pages [ 53.574852] 0 pages in swap cache [ 53.575244] Swap cache stats: add 0, delete 0, find 0/0 [ 53.575705] Free swap = 0kB [ 53.575966] Total swap = 0kB [ 53.576263] 524186 pages RAM [ 53.576523] 0 pages HighMem/MovableOnly [ 53.576865] 103968 pages reserved [ 53.577565] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 53.578872] [ 1523] 0 1523 7117 1907 20 3 0 -1000 udevd [ 53.579528] [ 2944] 0 2944 30604 145 25 3 0 0 rsyslogd [ 53.580344] [ 2980] 0 2980 4725 50 15 3 0 0 cron [ 53.581092] [ 3005] 0 3005 12490 153 27 3 0 -1000 sshd [ 53.581815] [ 3032] 0 3032 3694 40 13 3 0 0 getty [ 53.582566] [ 3033] 0 3033 3694 40 13 3 0 0 getty [ 53.583157] [ 3034] 0 3034 3694 39 13 3 0 0 getty [ 53.583901] [ 3035] 0 3035 3694 40 13 3 0 0 getty [ 53.584652] [ 3036] 0 3036 3694 39 13 3 0 0 getty [ 53.585318] [ 3037] 0 3037 3694 41 13 3 0 0 getty [ 53.586072] [ 3038] 0 3038 3649 40 13 3 0 0 getty [ 53.586802] [ 3040] 0 3040 5381 176 15 3 0 -1000 udevd [ 53.587444] [ 3042] 0 3042 5381 177 15 3 0 -1000 udevd [ 53.588202] [ 3061] 0 3061 17820 196 38 3 0 0 sshd [ 53.588928] [ 3064] 0 3064 4377 12 4 2 0 0 syzkaller645273 [ 53.589732] [ 3065] 0 3065 4377 12 4 2 0 0 syzkaller645273 [ 53.590542] [ 3066] 0 3066 4377 12 4 2 0 0 syzkaller645273 [ 53.591366] [ 3067] 0 3067 4377 12 4 2 0 0 syzkaller645273 [ 53.592191] [ 3068] 0 3068 4377 12 4 2 0 0 syzkaller645273 [ 53.592963] [ 3069] 0 3069 4377 12 4 2 0 0 syzkaller645273 [ 53.593806] [ 3070] 0 3070 4377 12 4 2 0 0 syzkaller645273 [ 53.594645] [ 3071] 0 3071 4377 12 4 2 0 0 syzkaller645273 [ 53.595479] [ 3077] 0 3077 5381 176 15 3 0 -1000 udevd [ 53.596252] [ 3082] 0 3082 5381 174 15 3 0 -1000 udevd [ 53.597005] [ 3085] 0 3085 5381 176 15 3 0 -1000 udevd [ 53.597771] [ 3093] 0 3093 5381 176 15 3 0 -1000 udevd [ 53.598788] [ 3098] 0 3098 5334 135 15 3 0 -1000 udevd [ 53.599563] [ 3110] 0 3110 5334 137 15 3 0 -1000 udevd [ 53.600326] Out of memory: Kill process 3061 (sshd) score 0 or sacrifice child [ 53.600961] Killed process 3061 (sshd) total-vm:71280kB, anon-rss:780kB, file-rss:0kB, shmem-rss:4kB [ 53.604078] oom_reaper: reaped process 3061 (sshd), now anon-rss:0kB, file-rss:0kB, shmem-rss:4kB [ 53.605768] syzkaller645273 invoked oom-killer: gfp_mask=0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null), order=1, oom_score_adj=0 [ 53.607000] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 53.607386] CPU: 2 PID: 3064 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 53.608107] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 53.608748] Call Trace: [ 53.608954] dump_stack+0x194/0x257 [ 53.609259] ? arch_local_irq_restore+0x53/0x53 [ 53.609648] ? check_noncircular+0x20/0x20 [ 53.609939] dump_header+0x234/0xa0e [ 53.610262] ? pagefault_out_of_memory+0x152/0x152 [ 53.610622] ? lock_acquire+0x1d5/0x580 [ 53.610960] ? ___ratelimit+0x152/0x630 [ 53.611292] ? do_raw_spin_trylock+0x190/0x190 [ 53.611712] ? mark_held_locks+0xb2/0x100 [ 53.612094] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 53.612535] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.612966] ? trace_hardirqs_on+0xd/0x10 [ 53.613250] ? ___ratelimit+0x95/0x630 [ 53.613597] ? idr_get_free+0xff0/0xff0 [ 53.613953] oom_kill_process+0x86d/0x13d0 [ 53.614323] ? lock_downgrade+0x990/0x990 [ 53.614611] ? oom_evaluate_task+0x480/0x480 [ 53.614993] ? find_lock_task_mm+0x23b/0x460 [ 53.615364] ? do_raw_spin_trylock+0x190/0x190 [ 53.615683] ? task_will_free_mem+0xaa0/0xaa0 [ 53.616072] ? check_noncircular+0x20/0x20 [ 53.616379] ? lock_downgrade+0x990/0x990 [ 53.616744] ? _raw_spin_unlock+0x22/0x30 [ 53.617105] ? oom_badness+0xdf/0xb80 [ 53.617438] ? find_held_lock+0x39/0x1d0 [ 53.617801] ? lock_downgrade+0x990/0x990 [ 53.618167] ? oom_unkillable_task+0x33d/0x4c0 [ 53.618569] ? out_of_memory+0x8c1/0x11d0 [ 53.618930] ? oom_reaper+0x4d0/0x4d0 [ 53.619613] ? lock_release+0xd70/0xd70 [ 53.619962] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 53.620404] ? oom_evaluate_task+0x284/0x480 [ 53.620790] out_of_memory+0x7dd/0x11d0 [ 53.621145] ? oom_killer_disable+0x310/0x310 [ 53.621533] ? mutex_trylock+0x23a/0x2d0 [ 53.621890] ? rcu_pm_notify+0xc0/0xc0 [ 53.622227] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 53.622707] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 53.623159] ? warn_alloc+0x2f0/0x2f0 [ 53.623508] ? do_sys_open+0x2e7/0x6d0 [ 53.623852] ? warn_alloc+0x2f0/0x2f0 [ 53.624186] ? save_stack_trace+0x16/0x20 [ 53.624554] ? check_noncircular+0x20/0x20 [ 53.624620] syzkaller645273: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 53.624635] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 53.626467] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 53.626919] ? lock_release+0xd70/0xd70 [ 53.627330] ? check_same_owner+0x320/0x320 [ 53.627801] ? find_held_lock+0x39/0x1d0 [ 53.628178] ? check_same_owner+0x320/0x320 [ 53.628573] ? __might_sleep+0x95/0x190 [ 53.628921] __alloc_pages_nodemask+0x9f7/0xd80 [ 53.629327] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.629760] ? __alloc_pages_nodemask+0xae5/0xd80 [ 53.630179] ? find_held_lock+0x39/0x1d0 [ 53.630532] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.630981] ? cache_grow_begin+0x31b/0x400 [ 53.631362] cache_grow_begin+0x86/0x400 [ 53.631830] fallback_alloc+0x150/0x2b0 [ 53.632181] ____cache_alloc_node+0x1cf/0x1e0 [ 53.632566] kmem_cache_alloc+0x287/0x760 [ 53.632932] getname_flags+0xcb/0x580 [ 53.633264] ? do_page_fault+0x70/0x70 [ 53.633611] getname+0x19/0x20 [ 53.633894] do_sys_open+0x2e7/0x6d0 [ 53.634220] ? filp_open+0x70/0x70 [ 53.634527] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.634959] SyS_openat+0x30/0x40 [ 53.635264] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 53.635683] RIP: 0033:0x43a429 [ 53.635920] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 53.643933] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043a429 [ 53.644691] RDX: 0000000000000000 RSI: 0000000020017000 RDI: ffffffffffffff9c [ 53.645525] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 53.646299] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 53.647016] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 53.647822] CPU: 3 PID: 3068 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 53.647858] Mem-Info: [ 53.647872] active_anon:3059 inactive_anon:41 isolated_anon:0 [ 53.647872] active_file:46 inactive_file:149 isolated_file:0 [ 53.647872] unevictable:0 dirty:0 writeback:0 unstable:0 [ 53.647872] slab_reclaimable:53833 slab_unreclaimable:329051 [ 53.647872] mapped:94 shmem:76 pagetables:378 bounce:0 [ 53.647872] free:18033 free_pcp:81 free_cma:0 [ 53.647883] Node 0 active_anon:4376kB inactive_anon:64kB active_file:124kB inactive_file:224kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:76kB dirty:0kB writeback:0kB shmem:104kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.647894] Node 1 active_anon:7860kB inactive_anon:100kB active_file:60kB inactive_file:372kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:300kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.647898] Node 0 DMA free:4176kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 53.647913] lowmem_reserve[]: 0 886 886 886 [ 53.647934] Node 0 DMA32 free:36532kB min:36536kB low:45668kB high:54800kB active_anon:4324kB inactive_anon:64kB active_file:24kB inactive_file:148kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2016kB pagetables:916kB bounce:0kB free_pcp:208kB local_pcp:0kB free_cma:0kB [ 53.647949] lowmem_reserve[]: 0 0 0 0 [ 53.647969] Node 1 DMA32 free:31424kB min:30404kB low:38004kB high:45604kB active_anon:7860kB inactive_anon:100kB active_file:60kB inactive_file:72kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:2048kB pagetables:596kB bounce:0kB free_pcp:124kB local_pcp:0kB free_cma:0kB [ 53.647984] lowmem_reserve[]: 0 0 0 0 [ 53.648004] Node 0 DMA: 6*4kB (UME) 1*8kB (U) 1*16kB (U) 1*32kB (U) 2*64kB (ME) 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4176kB [ 53.648091] Node 0 DMA32: 348*4kB (UME) 382*8kB (UMEH) 229*16kB (UMEH) 147*32kB (UMH) 74*64kB (UME) 14*128kB (M) 3*256kB (UM) 3*512kB (UME) 1*1024kB (M) 1*2048kB (E) 3*4096kB (M) = 37008kB [ 53.648173] Node 1 DMA32: 298*4kB (UM) 651*8kB (UMEH) 478*16kB (UMEH) 157*32kB (UMEH) 67*64kB (UME) 25*128kB (UM) 7*256kB (UME) 0*512kB 1*1024kB (M) 1*2048kB (M) 0*4096kB = 31424kB [ 53.648401] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.648407] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.648411] 259 total pagecache pages [ 53.648419] 0 pages in swap cache [ 53.648423] Swap cache stats: add 0, delete 0, find 0/0 [ 53.648427] Free swap = 0kB [ 53.648430] Total swap = 0kB [ 53.648434] 524186 pages RAM [ 53.648438] 0 pages HighMem/MovableOnly [ 53.648442] 103968 pages reserved [ 53.648446] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 53.648469] [ 1523] 0 1523 7117 1907 20 3 0 -1000 udevd [ 53.648481] [ 2944] 0 2944 30604 145 25 3 0 0 rsyslogd [ 53.648493] [ 2980] 0 2980 4725 50 15 3 0 0 cron [ 53.648504] [ 3005] 0 3005 12490 153 27 3 0 -1000 sshd [ 53.648516] [ 3032] 0 3032 3694 40 13 3 0 0 getty [ 53.648527] [ 3033] 0 3033 3694 40 13 3 0 0 getty [ 53.648539] [ 3034] 0 3034 3694 39 13 3 0 0 getty [ 53.648550] [ 3035] 0 3035 3694 40 13 3 0 0 getty [ 53.648561] [ 3036] 0 3036 3694 39 13 3 0 0 getty [ 53.648573] [ 3037] 0 3037 3694 41 13 3 0 0 getty [ 53.648585] [ 3038] 0 3038 3649 40 13 3 0 0 getty [ 53.648594] [ 3040] 0 3040 5381 176 15 3 0 -1000 udevd [ 53.648603] [ 3042] 0 3042 5381 177 15 3 0 -1000 udevd [ 53.648612] [ 3061] 0 3061 17820 1 38 3 0 0 sshd [ 53.648623] [ 3064] 0 3064 4377 12 4 2 0 0 syzkaller645273 [ 53.648632] [ 3065] 0 3065 4377 12 4 2 0 0 syzkaller645273 [ 53.648643] [ 3066] 0 3066 4377 12 4 2 0 0 syzkaller645273 [ 53.648654] [ 3067] 0 3067 4377 12 4 2 0 0 syzkaller645273 [ 53.648664] [ 3068] 0 3068 4377 12 4 2 0 0 syzkaller645273 [ 53.648675] [ 3069] 0 3069 4377 12 4 2 0 0 syzkaller645273 [ 53.648686] [ 3070] 0 3070 4377 12 4 2 0 0 syzkaller645273 [ 53.648697] [ 3071] 0 3071 4377 12 4 2 0 0 syzkaller645273 [ 53.648708] [ 3077] 0 3077 5381 176 15 3 0 -1000 udevd [ 53.648719] [ 3082] 0 3082 5381 174 15 3 0 -1000 udevd [ 53.648731] [ 3085] 0 3085 5381 176 15 3 0 -1000 udevd [ 53.648742] [ 3093] 0 3093 5381 176 15 3 0 -1000 udevd [ 53.648753] [ 3098] 0 3098 5334 135 15 3 0 -1000 udevd [ 53.648764] [ 3110] 0 3110 5334 137 15 3 0 -1000 udevd [ 53.648770] Out of memory: Kill process 2944 (rsyslogd) score 0 or sacrifice child [ 53.649163] Killed process 2944 (rsyslogd) total-vm:122416kB, anon-rss:580kB, file-rss:0kB, shmem-rss:0kB [ 53.649323] rsyslogd (2948) used greatest stack depth: 11472 bytes left [ 53.649469] syzkaller645273: page allocation failure: order:5, mode:0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null) [ 53.649487] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 53.652448] oom_reaper: reaped process 2944 (rsyslogd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 53.654229] syzkaller645273 invoked oom-killer: gfp_mask=0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null), order=1, oom_score_adj=0 [ 53.654242] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 53.698455] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 53.699150] Call Trace: [ 53.699380] dump_stack+0x194/0x257 [ 53.699702] ? arch_local_irq_restore+0x53/0x53 [ 53.700104] ? isolate_lru_page+0x11d0/0x11d0 [ 53.700488] ? _find_next_bit+0xee/0x120 [ 53.700841] warn_alloc+0x1c2/0x2f0 [ 53.701157] ? zone_watermark_ok_safe+0x430/0x430 [ 53.701570] ? mutex_unlock+0xd/0x10 [ 53.701907] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 53.702354] ? warn_alloc+0x2f0/0x2f0 [ 53.702684] ? SyS_ioctl+0x8f/0xc0 [ 53.702997] ? warn_alloc+0x2f0/0x2f0 [ 53.703314] ? save_stack_trace+0x16/0x20 [ 53.703691] ? alloc_set_pte+0x1162/0x18f0 [ 53.704084] ? check_noncircular+0x20/0x20 [ 53.705576] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 53.706040] ? find_held_lock+0x39/0x1d0 [ 53.706401] ? lock_downgrade+0x990/0x990 [ 53.706780] ? check_same_owner+0x320/0x320 [ 53.707182] ? rcu_note_context_switch+0x710/0x710 [ 53.707623] ? check_noncircular+0x20/0x20 [ 53.707998] ? __might_sleep+0x95/0x190 [ 53.708348] __alloc_pages_nodemask+0x9f7/0xd80 [ 53.708758] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.709193] ? __alloc_pages_nodemask+0xae5/0xd80 [ 53.709614] ? find_held_lock+0x39/0x1d0 [ 53.709970] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.710420] ? cache_grow_begin+0x31b/0x400 [ 53.710802] cache_grow_begin+0x86/0x400 [ 53.711160] fallback_alloc+0x150/0x2b0 [ 53.711521] ____cache_alloc_node+0x1cf/0x1e0 [ 53.711917] kmem_cache_alloc_trace+0x27d/0x750 [ 53.712323] ? lock_downgrade+0x990/0x990 [ 53.712688] kvm_dev_ioctl+0x216/0x1840 [ 53.713041] ? lock_release+0xd70/0xd70 [ 53.713443] ? install_new_memslots+0x420/0x420 [ 53.713753] ? check_noncircular+0x20/0x20 [ 53.714121] ? __handle_mm_fault+0x587/0x39c0 [ 53.714429] ? avc_has_extended_perms+0x7fa/0x12c0 [ 53.714859] ? avc_ss_reset+0x110/0x110 [ 53.715137] ? lock_downgrade+0x990/0x990 [ 53.715520] ? check_same_owner+0x320/0x320 [ 53.715808] ? __handle_mm_fault+0x39c0/0x39c0 [ 53.716199] ? vmacache_find+0x61/0x270 [ 53.716471] ? rcu_note_context_switch+0x710/0x710 [ 53.716901] ? install_new_memslots+0x420/0x420 [ 53.717217] do_vfs_ioctl+0x1b1/0x1530 [ 53.717552] ? _cond_resched+0x14/0x30 [ 53.717931] ? ioctl_preallocate+0x2b0/0x2b0 [ 53.718250] ? selinux_capable+0x40/0x40 [ 53.718601] ? putname+0xf3/0x130 [ 53.718913] ? security_file_ioctl+0x7d/0xb0 [ 53.719206] ? security_file_ioctl+0x89/0xb0 [ 53.719995] SyS_ioctl+0x8f/0xc0 [ 53.720391] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 53.720932] RIP: 0033:0x43a429 [ 53.721293] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000203 ORIG_RAX: 0000000000000010 [ 53.722152] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000043a429 [ 53.722963] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 00000000000002c9 [ 53.723761] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 53.724578] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 53.725384] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 53.727230] CPU: 2 PID: 3064 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 53.727280] warn_alloc_show_mem: 3 callbacks suppressed [ 53.727283] Mem-Info: [ 53.727296] active_anon:2905 inactive_anon:41 isolated_anon:0 [ 53.727296] active_file:55 inactive_file:2 isolated_file:0 [ 53.727296] unevictable:0 dirty:0 writeback:0 unstable:0 [ 53.727296] slab_reclaimable:53833 slab_unreclaimable:329051 [ 53.727296] mapped:21 shmem:76 pagetables:378 bounce:0 [ 53.727296] free:18316 free_pcp:122 free_cma:0 [ 53.727307] Node 0 active_anon:3948kB inactive_anon:64kB active_file:92kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:68kB dirty:0kB writeback:0kB shmem:104kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.727318] Node 1 active_anon:7672kB inactive_anon:100kB active_file:128kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.727321] Node 0 DMA free:4176kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 53.727349] lowmem_reserve[]: 0 886 886 886 Connection to localhost closed by remote host. [ 53.727369] Node 0 DMA32 free:37204kB min:36536kB low:45668kB high:54800kB active_anon:3896kB inactive_anon:64kB active_file:92kB inactive_file:0kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2016kB pagetables:916kB bounce:0kB free_pcp:488kB local_pcp:0kB free_cma:0kB [ 53.727384] lowmem_reserve[]: 0 0 0 0 [ 53.727400] Node 1 DMA32 free:31884kB min:30404kB low:38004kB high:45604kB active_anon:7672kB inactive_anon:100kB active_file:28kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:2048kB pagetables:596kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 53.727420] lowmem_reserve[]: 0 0 0 0 [ 53.727436] Node 0 DMA: 6*4kB (UME) 1*8kB (U) 1*16kB (U) 1*32kB (U) 2*64kB (ME) 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4176kB [ 53.727526] Node 0 DMA32: 331*4kB (ME) 348*8kB (UMEH) 218*16kB (UMEH) 146*32kB (UMH) 82*64kB (UME) 15*128kB (M) 4*256kB (UM) 3*512kB (UME) 1*1024kB (M) 1*2048kB (E) 3*4096kB (M) = 37356kB [ 53.727605] Node 1 DMA32: 425*4kB (UM) 656*8kB (UMEH) 482*16kB (UMEH) 161*32kB (UMEH) 68*64kB (UME) 25*128kB (UM) 7*256kB (UME) 0*512kB 1*1024kB (M) 1*2048kB (M) 0*4096kB = 32228kB [ 53.727687] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.727691] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.727694] 155 total pagecache pages [ 53.727700] 0 pages in swap cache [ 53.727704] Swap cache stats: add 0, delete 0, find 0/0 [ 53.727707] Free swap = 0kB [ 53.727710] Total swap = 0kB [ 53.727713] 524186 pages RAM [ 53.727716] 0 pages HighMem/MovableOnly [ 53.727719] 103968 pages reserved [ 53.743665] sshd (3061) used greatest stack depth: 9360 bytes left [ 53.758266] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 53.758943] Call Trace: [ 53.759168] dump_stack+0x194/0x257 [ 53.759473] ? arch_local_irq_restore+0x53/0x53 [ 53.759874] ? check_noncircular+0x20/0x20 [ 53.760199] dump_header+0x234/0xa0e [ 53.760456] ? pagefault_out_of_memory+0x152/0x152 [ 53.760786] ? lock_acquire+0x1d5/0x580 [ 53.761053] ? ___ratelimit+0x152/0x630 [ 53.761432] ? do_raw_spin_trylock+0x190/0x190 [ 53.761728] ? mark_held_locks+0xb2/0x100 [ 53.762002] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 53.762342] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.762663] ? trace_hardirqs_on+0xd/0x10 [ 53.762946] ? ___ratelimit+0x95/0x630 [ 53.763211] ? idr_get_free+0xff0/0xff0 [ 53.763481] oom_kill_process+0x86d/0x13d0 [ 53.763893] ? lock_downgrade+0x990/0x990 [ 53.764312] ? oom_evaluate_task+0x480/0x480 [ 53.764603] ? find_lock_task_mm+0x23b/0x460 [ 53.764980] ? do_raw_spin_trylock+0x190/0x190 [ 53.765285] ? task_will_free_mem+0xaa0/0xaa0 [ 53.765656] ? check_noncircular+0x20/0x20 [ 53.765935] ? lock_downgrade+0x990/0x990 [ 53.766303] ? _raw_spin_unlock+0x22/0x30 [ 53.766569] ? oom_badness+0xdf/0xb80 [ 53.766921] ? find_held_lock+0x39/0x1d0 [ 53.767287] ? lock_downgrade+0x990/0x990 [ 53.767597] ? oom_unkillable_task+0x33d/0x4c0 [ 53.767901] ? out_of_memory+0x8c1/0x11d0 [ 53.768158] ? oom_reaper+0x4d0/0x4d0 [ 53.768392] ? lock_release+0xd70/0xd70 [ 53.768666] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 53.769020] ? oom_evaluate_task+0x284/0x480 [ 53.769610] out_of_memory+0x7dd/0x11d0 [ 53.769884] ? oom_killer_disable+0x310/0x310 [ 53.770195] ? mutex_trylock+0x23a/0x2d0 [ 53.770475] ? rcu_pm_notify+0xc0/0xc0 [ 53.770741] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 53.771115] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 53.771482] ? warn_alloc+0x2f0/0x2f0 [ 53.771756] ? do_sys_open+0x2e7/0x6d0 [ 53.772025] ? warn_alloc+0x2f0/0x2f0 [ 53.772377] ? save_stack_trace+0x16/0x20 [ 53.772748] ? check_noncircular+0x20/0x20 [ 53.773136] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 53.773468] ? lock_release+0xd70/0xd70 [ 53.773721] ? check_same_owner+0x320/0x320 [ 53.774006] ? find_held_lock+0x39/0x1d0 [ 53.774299] ? check_same_owner+0x320/0x320 [ 53.774595] ? __might_sleep+0x95/0x190 [ 53.774861] __alloc_pages_nodemask+0x9f7/0xd80 [ 53.775173] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.775518] ? __alloc_pages_nodemask+0xae5/0xd80 [ 53.775831] ? find_held_lock+0x39/0x1d0 [ 53.776098] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.776446] ? cache_grow_begin+0x31b/0x400 [ 53.776741] cache_grow_begin+0x86/0x400 [ 53.777017] fallback_alloc+0x150/0x2b0 [ 53.777290] ____cache_alloc_node+0x1cf/0x1e0 [ 53.777597] kmem_cache_alloc+0x287/0x760 [ 53.777883] getname_flags+0xcb/0x580 [ 53.778138] ? do_page_fault+0x70/0x70 [ 53.778401] getname+0x19/0x20 [ 53.778619] do_sys_open+0x2e7/0x6d0 [ 53.778872] ? filp_open+0x70/0x70 [ 53.779113] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.779644] SyS_openat+0x30/0x40 [ 53.779969] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 53.780299] RIP: 0033:0x43a429 [ 53.780511] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 53.781035] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043a429 [ 53.781532] RDX: 0000000000000000 RSI: 0000000020017000 RDI: ffffffffffffff9c [ 53.782028] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 53.782580] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 53.783080] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 53.783605] CPU: 0 PID: 3066 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 53.783637] Mem-Info: [ 53.783646] active_anon:2905 inactive_anon:40 isolated_anon:0 [ 53.783646] active_file:88 inactive_file:55 isolated_file:0 [ 53.783646] unevictable:0 dirty:0 writeback:0 unstable:0 [ 53.783646] slab_reclaimable:53835 slab_unreclaimable:329001 [ 53.783646] mapped:84 shmem:75 pagetables:315 bounce:0 [ 53.783646] free:17799 free_pcp:566 free_cma:0 [ 53.783652] Node 0 active_anon:3948kB inactive_anon:60kB active_file:76kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:64kB dirty:0kB writeback:0kB shmem:100kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.783658] Node 1 active_anon:7672kB inactive_anon:100kB active_file:276kB inactive_file:208kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:272kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.783660] Node 0 DMA free:4176kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 53.783668] lowmem_reserve[]: 0 886 886 886 [ 53.783680] Node 0 DMA32 free:36228kB min:36536kB low:45668kB high:54800kB active_anon:3896kB inactive_anon:60kB active_file:76kB inactive_file:0kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:2016kB pagetables:732kB bounce:0kB free_pcp:1360kB local_pcp:0kB free_cma:0kB [ 53.783688] lowmem_reserve[]: 0 0 0 0 [ 53.783698] Node 1 DMA32 free:30792kB min:30404kB low:38004kB high:45604kB active_anon:7672kB inactive_anon:100kB active_file:276kB inactive_file:68kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1984kB pagetables:528kB bounce:0kB free_pcp:908kB local_pcp:0kB free_cma:0kB [ 53.783706] lowmem_reserve[]: 0 0 0 0 [ 53.783721] Node 0 DMA: 6*4kB (UME) 1*8kB (U) 1*16kB (U) 1*32kB (U) 2*64kB (ME) 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4176kB [ 53.783767] Node 0 DMA32: 155*4kB (M) 351*8kB (UMEH) 217*16kB (UMH) 147*32kB (UMH) 81*64kB (UM) 15*128kB (M) 4*256kB (UM) 3*512kB (UME) 1*1024kB (M) 1*2048kB (E) 3*4096kB (M) = 36628kB [ 53.783820] Node 1 DMA32: 188*4kB (UME) 644*8kB (UMEH) 482*16kB (UMEH) 163*32kB (UMEH) 68*64kB (UME) 26*128kB (UM) 7*256kB (UME) 0*512kB 1*1024kB (M) 1*2048kB (M) 0*4096kB = 31376kB [ 53.783869] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.783871] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.783874] 219 total pagecache pages [ 53.783878] 0 pages in swap cache [ 53.783881] Swap cache stats: add 0, delete 0, find 0/0 [ 53.783883] Free swap = 0kB [ 53.783885] Total swap = 0kB [ 53.783887] 524186 pages RAM [ 53.783889] 0 pages HighMem/MovableOnly [ 53.783891] 103968 pages reserved [ 53.783894] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 53.783911] [ 1523] 0 1523 7117 1907 20 3 0 -1000 udevd [ 53.783918] [ 2980] 0 2980 4725 50 15 3 0 0 cron [ 53.783924] [ 3005] 0 3005 12490 153 27 3 0 -1000 sshd [ 53.783930] [ 3032] 0 3032 3694 40 13 3 0 0 getty [ 53.783938] [ 3033] 0 3033 3694 40 13 3 0 0 getty [ 53.783948] [ 3034] 0 3034 3694 39 13 3 0 0 getty [ 53.783954] [ 3035] 0 3035 3694 40 13 3 0 0 getty [ 53.783961] [ 3036] 0 3036 3694 39 13 3 0 0 getty [ 53.783967] [ 3037] 0 3037 3694 41 13 3 0 0 getty [ 53.783973] [ 3038] 0 3038 3649 40 13 3 0 0 getty [ 53.783980] [ 3040] 0 3040 5381 176 15 3 0 -1000 udevd [ 53.783986] [ 3042] 0 3042 5381 177 15 3 0 -1000 udevd [ 53.783992] [ 3064] 0 3064 4377 12 4 2 0 0 syzkaller645273 [ 53.783999] [ 3065] 0 3065 4377 12 4 2 0 0 syzkaller645273 [ 53.784022] [ 3066] 0 3066 4377 12 4 2 0 0 syzkaller645273 [ 53.784030] [ 3067] 0 3067 4377 12 4 2 0 0 syzkaller645273 [ 53.784036] [ 3068] 0 3068 4377 12 4 2 0 0 syzkaller645273 [ 53.784043] [ 3069] 0 3069 4377 12 4 2 0 0 syzkaller645273 [ 53.784049] [ 3070] 0 3070 4377 12 4 2 0 0 syzkaller645273 [ 53.784055] [ 3071] 0 3071 4377 12 4 2 0 0 syzkaller645273 [ 53.784062] [ 3077] 0 3077 5381 176 15 3 0 -1000 udevd [ 53.784069] [ 3082] 0 3082 5381 174 15 3 0 -1000 udevd [ 53.784076] [ 3085] 0 3085 5381 176 15 3 0 -1000 udevd [ 53.784082] [ 3093] 0 3093 5381 176 15 3 0 -1000 udevd [ 53.784089] [ 3098] 0 3098 5334 135 15 3 0 -1000 udevd [ 53.784097] [ 3110] 0 3110 5334 137 15 3 0 -1000 udevd [ 53.784101] Out of memory: Kill process 2980 (cron) score 0 or sacrifice child [ 53.784117] Killed process 2980 (cron) total-vm:18900kB, anon-rss:196kB, file-rss:4kB, shmem-rss:0kB [ 53.822670] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 53.823224] Call Trace: [ 53.823401] dump_stack+0x194/0x257 [ 53.823646] ? arch_local_irq_restore+0x53/0x53 [ 53.823954] ? flush_work+0x621/0x930 [ 53.824242] warn_alloc+0x1c2/0x2f0 [ 53.824484] ? zone_watermark_ok_safe+0x430/0x430 [ 53.824804] ? mutex_unlock+0xd/0x10 [ 53.825089] __alloc_pages_slowpath+0x26ce/0x2ee0 [ 53.825448] ? warn_alloc+0x2f0/0x2f0 [ 53.825702] ? SyS_ioctl+0x8f/0xc0 [ 53.825944] ? warn_alloc+0x2f0/0x2f0 [ 53.826221] ? save_stack_trace+0x16/0x20 [ 53.826499] ? alloc_set_pte+0x1162/0x18f0 [ 53.826786] ? check_noncircular+0x20/0x20 [ 53.827095] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 53.827449] ? find_held_lock+0x39/0x1d0 [ 53.827730] ? lock_downgrade+0x990/0x990 [ 53.828031] ? check_same_owner+0x320/0x320 [ 53.828334] ? rcu_note_context_switch+0x710/0x710 [ 53.828657] ? check_noncircular+0x20/0x20 [ 53.828937] ? __might_sleep+0x95/0x190 [ 53.829235] __alloc_pages_nodemask+0x9f7/0xd80 [ 53.829550] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.829883] ? __alloc_pages_nodemask+0xae5/0xd80 [ 53.830228] ? find_held_lock+0x39/0x1d0 [ 53.830502] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.830851] ? cache_grow_begin+0x31b/0x400 [ 53.831169] cache_grow_begin+0x86/0x400 [ 53.831499] fallback_alloc+0x150/0x2b0 [ 53.831770] ____cache_alloc_node+0x1cf/0x1e0 [ 53.832088] kmem_cache_alloc_trace+0x27d/0x750 [ 53.832400] ? lock_downgrade+0x990/0x990 [ 53.832886] kvm_dev_ioctl+0x216/0x1840 [ 53.833164] ? lock_release+0xd70/0xd70 [ 53.833429] ? install_new_memslots+0x420/0x420 [ 53.833736] ? check_noncircular+0x20/0x20 [ 53.834030] ? __handle_mm_fault+0x587/0x39c0 [ 53.834335] ? avc_has_extended_perms+0x7fa/0x12c0 [ 53.834668] ? avc_ss_reset+0x110/0x110 [ 53.834939] ? lock_downgrade+0x990/0x990 [ 53.835241] ? check_same_owner+0x320/0x320 [ 53.835535] ? __handle_mm_fault+0x39c0/0x39c0 [ 53.835836] ? vmacache_find+0x61/0x270 [ 53.836110] ? rcu_note_context_switch+0x710/0x710 [ 53.836439] ? install_new_memslots+0x420/0x420 [ 53.836746] do_vfs_ioctl+0x1b1/0x1530 [ 53.837004] ? _cond_resched+0x14/0x30 [ 53.837270] ? ioctl_preallocate+0x2b0/0x2b0 [ 53.837569] ? selinux_capable+0x40/0x40 [ 53.837840] ? putname+0xf3/0x130 [ 53.838082] ? security_file_ioctl+0x7d/0xb0 [ 53.838374] ? security_file_ioctl+0x89/0xb0 [ 53.838671] SyS_ioctl+0x8f/0xc0 [ 53.838901] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 53.839229] RIP: 0033:0x43a429 [ 53.839442] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 [ 53.839956] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 000000000043a429 [ 53.840442] RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000330 [ 53.840916] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 53.841401] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000000000 [ 53.841879] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 53.858321] syzkaller645273 invoked oom-killer: gfp_mask=0x16040c0(GFP_KERNEL|__GFP_COMP|__GFP_NOTRACK), nodemask=(null), order=1, oom_score_adj=0 [ 53.859376] syzkaller645273 cpuset=/ mems_allowed=0-1 [ 53.859909] CPU: 1 PID: 3071 Comm: syzkaller645273 Not tainted 4.13.0-rc6-next-20170825+ #9 [ 53.860745] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 [ 53.861318] Call Trace: [ 53.861546] dump_stack+0x194/0x257 [ 53.861804] ? arch_local_irq_restore+0x53/0x53 [ 53.862115] ? check_noncircular+0x20/0x20 [ 53.862452] dump_header+0x234/0xa0e [ 53.862815] ? pagefault_out_of_memory+0x152/0x152 [ 53.863173] ? lock_acquire+0x1d5/0x580 [ 53.863476] ? ___ratelimit+0x152/0x630 [ 53.863769] ? do_raw_spin_trylock+0x190/0x190 [ 53.864086] ? mark_held_locks+0xb2/0x100 [ 53.864365] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 53.864715] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.865092] ? trace_hardirqs_on+0xd/0x10 [ 53.865375] ? ___ratelimit+0x95/0x630 [ 53.865643] ? idr_get_free+0xff0/0xff0 [ 53.865929] oom_kill_process+0x86d/0x13d0 [ 53.866221] ? lock_downgrade+0x990/0x990 [ 53.866511] ? oom_evaluate_task+0x480/0x480 [ 53.866822] ? find_lock_task_mm+0x23b/0x460 [ 53.867123] ? do_raw_spin_trylock+0x190/0x190 [ 53.867433] ? task_will_free_mem+0xaa0/0xaa0 [ 53.867824] ? check_noncircular+0x20/0x20 [ 53.868190] ? lock_downgrade+0x990/0x990 [ 53.868549] ? _raw_spin_unlock+0x22/0x30 [ 53.868888] ? oom_badness+0xdf/0xb80 [ 53.869143] ? find_held_lock+0x39/0x1d0 [ 53.869414] ? lock_downgrade+0x990/0x990 [ 53.869690] ? oom_unkillable_task+0x33d/0x4c0 [ 53.870005] ? out_of_memory+0x8c1/0x11d0 [ 53.870283] ? oom_reaper+0x4d0/0x4d0 [ 53.870542] ? lock_release+0xd70/0xd70 [ 53.870810] ? __alloc_pages_slowpath+0x10f6/0x2ee0 [ 53.871146] ? oom_evaluate_task+0x284/0x480 [ 53.871435] out_of_memory+0x7dd/0x11d0 [ 53.871708] ? oom_killer_disable+0x310/0x310 [ 53.872010] ? mutex_trylock+0x23a/0x2d0 [ 53.872278] ? rcu_pm_notify+0xc0/0xc0 [ 53.872535] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 53.872912] __alloc_pages_slowpath+0x1eae/0x2ee0 [ 53.873263] ? warn_alloc+0x2f0/0x2f0 [ 53.873513] ? do_sys_open+0x2e7/0x6d0 [ 53.873774] ? warn_alloc+0x2f0/0x2f0 [ 53.874039] ? save_stack_trace+0x16/0x20 [ 53.874326] ? check_noncircular+0x20/0x20 [ 53.874615] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 53.875388] ? lru_cache_add+0x1c7/0x3a0 [ 53.875733] ? lru_cache_add_file+0x20/0x20 [ 53.876030] ? find_held_lock+0x39/0x1d0 [ 53.876338] ? check_same_owner+0x320/0x320 [ 53.876634] ? __might_sleep+0x95/0x190 [ 53.876903] __alloc_pages_nodemask+0x9f7/0xd80 [ 53.877229] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.877563] ? __alloc_pages_nodemask+0xae5/0xd80 [ 53.877887] ? find_held_lock+0x39/0x1d0 [ 53.878171] ? __alloc_pages_slowpath+0x2ee0/0x2ee0 [ 53.878523] ? cache_grow_begin+0x31b/0x400 [ 53.878788] cache_grow_begin+0x86/0x400 [ 53.879064] fallback_alloc+0x150/0x2b0 [ 53.879346] ____cache_alloc_node+0x1cf/0x1e0 [ 53.879656] kmem_cache_alloc+0x287/0x760 [ 53.879941] getname_flags+0xcb/0x580 [ 53.880202] ? do_page_fault+0x70/0x70 [ 53.880464] getname+0x19/0x20 [ 53.880679] do_sys_open+0x2e7/0x6d0 [ 53.880930] ? filp_open+0x70/0x70 [ 53.881179] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.881518] SyS_openat+0x30/0x40 [ 53.881753] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 53.882069] RIP: 0033:0x43a429 [ 53.882288] RSP: 002b:00007ffd9b7293a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 53.882798] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000043a429 [ 53.883283] RDX: 0000000000000000 RSI: 0000000020017000 RDI: ffffffffffffff9c [ 53.883763] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 53.884250] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 53.884726] R13: 00000000004024a0 R14: 0000000000402530 R15: 0000000000000000 [ 53.885246] Mem-Info: [ 53.886292] active_anon:2844 inactive_anon:40 isolated_anon:0 [ 53.886292] active_file:32 inactive_file:28 isolated_file:0 [ 53.886292] unevictable:0 dirty:0 writeback:0 unstable:0 [ 53.886292] slab_reclaimable:53830 slab_unreclaimable:328668 [ 53.886292] mapped:23 shmem:75 pagetables:296 bounce:0 [ 53.886292] free:18850 free_pcp:129 free_cma:0 [ 53.889355] Node 0 active_anon:3868kB inactive_anon:60kB active_file:96kB inactive_file:148kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:100kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.892053] Node 1 active_anon:7508kB inactive_anon:100kB active_file:132kB inactive_file:264kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:188kB dirty:0kB writeback:0kB shmem:200kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.894308] Node 0 DMA free:4176kB min:640kB low:800kB high:960kB active_anon:52kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 53.897298] lowmem_reserve[]: 0 886 886 886 [ 53.898052] Node 0 DMA32 free:40700kB min:36536kB low:45668kB high:54800kB active_anon:3816kB inactive_anon:60kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:1984kB pagetables:720kB bounce:0kB free_pcp:388kB local_pcp:116kB free_cma:0kB [ 53.900389] lowmem_reserve[]: 0 0 0 0 [ 53.900922] Node 1 DMA32 free:32772kB min:30404kB low:38004kB high:45604kB active_anon:7508kB inactive_anon:100kB active_file:396kB inactive_file:156kB unevictable:0kB writepending:0kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1888kB pagetables:464kB bounce:0kB free_pcp:1192kB local_pcp:0kB free_cma:0kB [ 53.903229] lowmem_reserve[]: 0 0 0 0 [ 53.903896] Node 0 DMA: 6*4kB (UME) 1*8kB (U) 1*16kB (U) 1*32kB (U) 2*64kB (ME) 1*128kB (M) 1*256kB (M) 3*512kB (UME) 2*1024kB (UM) 0*2048kB 0*4096kB = 4176kB [ 53.905023] Node 0 DMA32: 207*4kB (UMH) 498*8kB (UMEH) 268*16kB (UMEH) 167*32kB (UMEH) 96*64kB (UME) 25*128kB (UM) 5*256kB (UME) 2*512kB (UM) 1*1024kB (M) 1*2048kB (E) 3*4096kB (M) = 41452kB [ 53.906369] Node 1 DMA32: 276*4kB (UMEH) 744*8kB (UMEH) 505*16kB (UMEH) 165*32kB (UMEH) 66*64kB (UM) 25*128kB (UM) 8*256kB (UME) 0*512kB 1*1024kB (M) 1*2048kB (M) 0*4096kB = 32960kB [ 53.907732] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.908382] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.908964] 386 total pagecache pages [ 53.909240] 0 pages in swap cache [ 53.909484] Swap cache stats: add 0, delete 0, find 0/0 [ 53.909837] Free swap = 0kB [ 53.910050] Total swap = 0kB [ 53.910252] 524186 pages RAM [ 53.910465] 0 pages HighMem/MovableOnly [ 53.910726] 103968 pages reserved [ 53.910954] [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 53.911578] [ 1523] 0 1523 7117 1908 20 3 0 -1000 udevd [ 53.912171] [ 3005] 0 3005 12490 153 27 3 0 -1000 sshd [ 53.912752] [ 3032] 0 3032 3694 40 13 3 0 0 getty [ 53.913344] [ 3033] 0 3033 3694 40 13 3 0 0 getty [ 53.913934] [ 3034] 0 3034 3694 39 13 3 0 0 getty [ 53.914533] [ 3035] 0 3035 3694 40 13 3 0 0 getty [ 53.915122] [ 3036] 0 3036 3694 39 13 3 0 0 getty [ 53.915719] [ 3037] 0 3037 3694 41 13 3 0 0 getty [ 53.916311] [ 3038] 0 3038 3649 40 13 3 0 0 getty [ 53.916899] [ 3040] 0 3040 5381 176 15 3 0 -1000 udevd [ 53.917491] [ 3042] 0 3042 5381 177 15 3 0 -1000 udevd [ 53.918683] [ 3064] 0 3064 4377 12 4 2 0 0 syzkaller645273 [ 53.919330] [ 3065] 0 3065 4377 12 4 2 0 0 syzkaller645273 [ 53.919975] [ 3068] 0 3068 4377 12 4 2 0 0 syzkaller645273 [ 53.920637] [ 3071] 0 3071 4377 12 4 2 0 0 syzkaller645273 [ 53.921286] [ 3077] 0 3077 5381 176 15 3 0 -1000 udevd [ 53.921867] [ 3082] 0 3082 5381 174 15 3 0 -1000 udevd [ 53.922458] [ 3085] 0 3085 5381 176 15 3 0 -1000 udevd [ 53.923051] [ 3093] 0 3093 5381 176 15 3 0 -1000 udevd [ 53.923637] [ 3098] 0 3098 5334 135 15 3 0 -1000 udevd [ 53.924227] [ 3110] 0 3110 5334 137 15 3 0 -1000 udevd [ 53.924799] Out of memory: Kill process 3037 (getty) score 0 or sacrifice child [ 53.925312] Killed process 3037 (getty) total-vm:14776kB, anon-rss:160kB, file-rss:4kB, shmem-rss:0kB