pf_prog_get+0x20/0x20
[  337.869960]  ? do_syscall_64+0x1b9/0x820
[  337.874014]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  337.879379]  ? syscall_return_slowpath+0x5e0/0x5e0
[  337.884308]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  337.889151]  ? trace_hardirqs_on_caller+0x310/0x310
[  337.894168]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  337.899183]  ? prepare_exit_to_usermode+0x291/0x3b0
[  337.904234]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  337.909079]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  337.914475] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  337.914749] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  337.921493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  337.931954] syz-executor2 cpuset=syz2 mems_allowed=0
[  337.941288] Call Trace:
[  337.948980]  <IRQ>
[  337.951131]  dump_stack+0x244/0x39d
[  337.954763]  ? dump_stack_print_info.cold.1+0x20/0x20
[  337.959957]  warn_alloc.cold.116+0xb7/0x1bd
[  337.964275]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  337.969132]  ? lock_downgrade+0x900/0x900
[  337.973288]  ? trace_hardirqs_off+0xb8/0x310
[  337.977702]  ? trace_hardirqs_off+0xb8/0x310
[  337.982123]  __alloc_pages_slowpath+0x26e8/0x2e10
[  337.987005]  ? warn_alloc+0x120/0x120
[  337.990799]  ? print_usage_bug+0xc0/0xc0
[  337.994854]  ? warn_alloc+0x120/0x120
[  337.998658]  ? warn_alloc+0x120/0x120
[  338.002476]  ? print_usage_bug+0xc0/0xc0
[  338.006620]  ? kvm_clock_read+0x18/0x30
[  338.010588]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  338.015619]  ? print_usage_bug+0xc0/0xc0
[  338.019682]  ? __lock_acquire+0x62f/0x4c20
[  338.023918]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.029453]  ? should_fail+0x22d/0xd01
[  338.033334]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  338.038430]  ? __lock_acquire+0x62f/0x4c20
[  338.042667]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  338.047763]  ? __lock_acquire+0x62f/0x4c20
[  338.052003]  ? should_fail+0x22d/0xd01
[  338.055905]  ? mark_held_locks+0x130/0x130
[  338.060146]  ? mark_held_locks+0x130/0x130
[  338.064372]  ? try_to_wake_up+0x11c/0x1490
[  338.068620]  ? lock_downgrade+0x900/0x900
[  338.072766]  ? zap_class+0x640/0x640
[  338.076477]  ? print_usage_bug+0xc0/0xc0
[  338.080529]  ? trace_hardirqs_off+0xb8/0x310
[  338.084934]  ? kasan_check_read+0x11/0x20
[  338.089101]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.094641]  ? check_preemption_disabled+0x48/0x280
[  338.099659]  ? __lock_is_held+0xb5/0x140
[  338.103719]  __alloc_pages_nodemask+0xa80/0xde0
[  338.108397]  ? zap_class+0x640/0x640
[  338.112119]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  338.117148]  ? find_held_lock+0x36/0x1c0
[  338.121210]  ? ____cache_alloc_node+0x1c7/0x1e0
[  338.125879]  ? lock_downgrade+0x900/0x900
[  338.130031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.135581]  cache_grow_begin+0xa5/0x8c0
[  338.139634]  ? do_raw_spin_unlock+0xa7/0x330
[  338.144048]  fallback_alloc+0x204/0x2e0
[  338.148032]  ____cache_alloc_node+0x1c7/0x1e0
[  338.152527]  kmem_cache_alloc_node+0xe3/0x730
[  338.157021]  ? ipv6_get_ifaddr+0x42e/0x620
[  338.161263]  __alloc_skb+0x119/0x770
[  338.164972]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.170251]  ? netdev_alloc_frag+0x1f0/0x1f0
[  338.174665]  ? lock_downgrade+0x900/0x900
[  338.178812]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.184342]  ? refcount_sub_and_test_checked+0x203/0x310
[  338.189792]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  338.195235]  ? addrconf_rs_timer+0x690/0x690
[  338.199658]  ndisc_alloc_skb+0x144/0x340
[  338.203729]  ndisc_send_rs+0x331/0x6e0
[  338.207617]  addrconf_rs_timer+0x314/0x690
[  338.211852]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.216099]  call_timer_fn+0x272/0x920
[  338.219983]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.224217]  ? process_timeout+0x40/0x40
[  338.228283]  ? mark_held_locks+0xc7/0x130
[  338.232427]  ? _raw_spin_unlock_irq+0x27/0x80
[  338.236915]  ? _raw_spin_unlock_irq+0x27/0x80
[  338.241402]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.245631]  ? lockdep_hardirqs_on+0x296/0x5b0
[  338.250206]  ? trace_hardirqs_on+0xbd/0x310
[  338.254521]  ? kasan_check_read+0x11/0x20
[  338.258660]  ? __run_timers+0x7da/0xc70
[  338.262630]  ? trace_hardirqs_off_caller+0x310/0x310
[  338.267739]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.271966]  __run_timers+0x7e5/0xc70
[  338.275793]  ? timer_fixup_init+0x70/0x70
[  338.280043]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  338.285060]  ? zap_class+0x640/0x640
[  338.288779]  ? print_usage_bug+0xc0/0xc0
[  338.292838]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  338.298030]  ? find_held_lock+0x36/0x1c0
[  338.302098]  ? zap_class+0x640/0x640
[  338.305820]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.311355]  ? check_preemption_disabled+0x48/0x280
[  338.316387]  ? __lock_is_held+0xb5/0x140
[  338.320446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.325980]  ? check_preemption_disabled+0x48/0x280
[  338.330999]  run_timer_softirq+0x52/0xb0
[  338.335073]  ? rcu_read_lock_sched_held+0x14f/0x180
[  338.340091]  __do_softirq+0x308/0xb7e
[  338.343892]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  338.348488]  ? lock_downgrade+0x900/0x900
[  338.352637]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  338.357741]  ? pvclock_read_flags+0x160/0x160
[  338.362233]  ? lapic_next_event+0x5a/0x90
[  338.366383]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.371934]  ? kvm_clock_read+0x18/0x30
[  338.376024]  ? kvm_sched_clock_read+0x9/0x20
[  338.380568]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.386126]  ? check_preemption_disabled+0x48/0x280
[  338.391150]  irq_exit+0x17f/0x1c0
[  338.394597]  smp_apic_timer_interrupt+0x1cb/0x760
[  338.399434]  ? smp_call_function_single_interrupt+0x650/0x650
[  338.405311]  ? interrupt_entry+0xb5/0xc0
[  338.409372]  ? trace_hardirqs_off_caller+0xbb/0x310
[  338.414382]  ? trace_hardirqs_off_caller+0xbb/0x310
[  338.419394]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  338.424234]  ? trace_hardirqs_on_caller+0x310/0x310
[  338.429263]  ? trace_hardirqs_on_caller+0x310/0x310
[  338.434275]  ? task_prio+0x50/0x50
[  338.437810]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.443341]  ? check_preemption_disabled+0x48/0x280
[  338.448361]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  338.453207]  apic_timer_interrupt+0xf/0x20
[  338.457431]  </IRQ>
[  338.459683] RIP: 0010:dump_stack+0x358/0x39d
[  338.464093] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  338.483004] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  338.490704] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  338.497966] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  338.505230] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  338.512494] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  338.519767] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  338.527055]  ? dump_stack+0x34f/0x39d
[  338.530863]  ? dump_stack_print_info.cold.1+0x20/0x20
[  338.536066]  ? mark_held_locks+0x130/0x130
[  338.540311]  ? mark_held_locks+0x130/0x130
[  338.544631]  dump_header+0x27b/0xf72
[  338.548370]  ? pagefault_out_of_memory+0x197/0x197
[  338.553309]  ? __lock_acquire+0x62f/0x4c20
[  338.557543]  ? percpu_ref_get_many+0x240/0x240
[  338.562208]  ? print_usage_bug+0xc0/0xc0
[  338.566271]  ? zap_class+0x640/0x640
[  338.569984]  ? print_usage_bug+0xc0/0xc0
[  338.574046]  ? print_usage_bug+0xc0/0xc0
[  338.578108]  ? zap_class+0x640/0x640
[  338.581822]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.587358]  ? find_held_lock+0x36/0x1c0
[  338.591427]  ? mark_held_locks+0xc7/0x130
[  338.595585]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  338.600677]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  338.605772]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  338.610353]  ? trace_hardirqs_on+0xbd/0x310
[  338.614666]  ? kasan_check_read+0x11/0x20
[  338.618823]  ? ___ratelimit+0x3b4/0x672
[  338.622792]  ? trace_hardirqs_off_caller+0x310/0x310
[  338.627890]  ? trace_hardirqs_on+0x310/0x310
[  338.632296]  ? lock_downgrade+0x900/0x900
[  338.636455]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  338.641578]  ? ___ratelimit+0x3b9/0x672
[  338.645554]  ? idr_get_free+0xf70/0xf70
[  338.649526]  ? find_held_lock+0x36/0x1c0
[  338.653590]  oom_kill_process.cold.27+0x10/0x903
[  338.658339]  ? zap_class+0x640/0x640
[  338.662053]  ? check_preemption_disabled+0x48/0x280
[  338.667090]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  338.672011]  ? kasan_check_read+0x11/0x20
[  338.676157]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.681427]  ? oom_evaluate_task+0x540/0x540
[  338.685831]  ? find_held_lock+0x36/0x1c0
[  338.689890]  ? out_of_memory+0x974/0x1430
[  338.694039]  ? lock_downgrade+0x900/0x900
[  338.698203]  ? check_preemption_disabled+0x48/0x280
[  338.703217]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  338.708150]  ? kasan_check_read+0x11/0x20
[  338.712304]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.717571]  ? rcu_softirq_qs+0x20/0x20
[  338.721545]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.727075]  ? oom_evaluate_task+0x302/0x540
[  338.731488]  out_of_memory+0xa84/0x1430
[  338.735476]  ? oom_killer_disable+0x3a0/0x3a0
[  338.739966]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  338.744894]  ? __ww_mutex_check_waiters+0x160/0x160
[  338.750002]  __alloc_pages_slowpath+0x2354/0x2e10
[  338.754889]  ? warn_alloc+0x120/0x120
[  338.758690]  ? mark_held_locks+0x130/0x130
[  338.762925]  ? find_get_entry+0xaae/0x1120
[  338.767162]  ? filemap_map_pages+0x1a20/0x1a20
[  338.771742]  ? zap_class+0x640/0x640
[  338.775546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.781086]  ? check_preemption_disabled+0x48/0x280
[  338.786099]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.791630]  ? should_fail+0x22d/0xd01
[  338.795517]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  338.800616]  ? zap_class+0x640/0x640
[  338.804388]  ? __lock_is_held+0xb5/0x140
[  338.808450]  ? mark_held_locks+0x130/0x130
[  338.812680]  ? lock_release+0xa00/0xa00
[  338.816660]  ? perf_trace_sched_process_exec+0x860/0x860
[  338.822104]  ? xa_load+0x2ba/0x460
[  338.825652]  ? lock_downgrade+0x900/0x900
[  338.829797]  ? __might_sleep+0x95/0x190
[  338.833769]  __alloc_pages_nodemask+0xa80/0xde0
[  338.838459]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  338.843470]  ? __page_cache_alloc+0x191/0x5c0
[  338.847958]  ? xa_load+0x2e1/0x460
[  338.851499]  ? xa_clear_mark+0x40/0x40
[  338.855383]  ? zap_class+0x640/0x640
[  338.859101]  ? zap_class+0x640/0x640
[  338.862812]  ? zap_class+0x640/0x640
[  338.866529]  ? __do_page_cache_readahead+0x663/0x810
[  338.871645]  ? find_held_lock+0x36/0x1c0
[  338.875721]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  338.881257]  alloc_pages_current+0x173/0x350
[  338.885680]  __page_cache_alloc+0x38c/0x5c0
[  338.890000]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  338.894931]  ? kasan_check_read+0x11/0x20
[  338.899552]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.904829]  ? generic_perform_write+0x6a0/0x6a0
[  338.909582]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.915114]  ? check_preemption_disabled+0x48/0x280
[  338.920134]  filemap_fault+0x1595/0x25f0
[  338.924210]  ? __lock_page_or_retry+0xa00/0xa00
[  338.928969]  ? mark_held_locks+0x130/0x130
[  338.933207]  ? filemap_map_pages+0xd6b/0x1a20
[  338.937707]  ? lock_downgrade+0x900/0x900
[  338.941861]  ? check_preemption_disabled+0x48/0x280
[  338.946877]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  338.951802]  ? kasan_check_read+0x11/0x20
[  338.955947]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.961218]  ? rcu_softirq_qs+0x20/0x20
[  338.965201]  ? filemap_map_pages+0xd92/0x1a20
[  338.969702]  ? find_get_entries_tag+0x1400/0x1400
[  338.974535]  ? find_held_lock+0x36/0x1c0
[  338.978610]  ? lock_acquire+0x1ed/0x520
[  338.982581]  ? ext4_filemap_fault+0x7a/0xad
[  338.986907]  ? lock_release+0xa00/0xa00
[  338.990875]  ? perf_trace_sched_process_exec+0x860/0x860
[  338.996339]  ? print_usage_bug+0xc0/0xc0
[  339.000426]  ? down_read+0x8d/0x120
[  339.004050]  ? ext4_filemap_fault+0x7a/0xad
[  339.008376]  ? __down_interruptible+0x700/0x700
[  339.013053]  ? find_held_lock+0x36/0x1c0
[  339.017123]  ext4_filemap_fault+0x82/0xad
[  339.021265]  __do_fault+0x100/0x6b0
[  339.024888]  ? lock_downgrade+0x900/0x900
[  339.029039]  ? pmd_devmap_trans_unstable+0x220/0x220
[  339.034143]  ? kasan_check_read+0x11/0x20
[  339.038297]  ? do_raw_spin_unlock+0xa7/0x330
[  339.042701]  ? do_raw_spin_trylock+0x270/0x270
[  339.047301]  __handle_mm_fault+0x3ea0/0x5be0
[  339.051714]  ? perf_trace_lock+0x7a0/0x7a0
[  339.055951]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  339.060792]  ? __switch_to_asm+0x34/0x70
[  339.064844]  ? __switch_to_asm+0x34/0x70
[  339.069293]  ? zap_class+0x640/0x640
[  339.073009]  ? zap_class+0x640/0x640
[  339.076720]  ? __x64_sys_futex+0x53e/0x6a0
[  339.080954]  ? find_held_lock+0x36/0x1c0
[  339.085035]  ? handle_mm_fault+0x42a/0xc70
[  339.089267]  ? lock_downgrade+0x900/0x900
[  339.093414]  ? check_preemption_disabled+0x48/0x280
[  339.098425]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  339.103352]  ? kasan_check_read+0x11/0x20
[  339.107492]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  339.112768]  ? rcu_softirq_qs+0x20/0x20
[  339.116736]  ? trace_hardirqs_off_caller+0x310/0x310
[  339.121838]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.127372]  ? check_preemption_disabled+0x48/0x280
[  339.132403]  handle_mm_fault+0x54f/0xc70
[  339.136464]  ? __handle_mm_fault+0x5be0/0x5be0
[  339.141051]  ? find_vma+0x34/0x190
[  339.144607]  __do_page_fault+0x5e8/0xe60
[  339.148665]  ? trace_hardirqs_off+0xb8/0x310
[  339.153084]  do_page_fault+0xf2/0x7e0
[  339.156884]  ? vmalloc_sync_all+0x30/0x30
[  339.161033]  ? error_entry+0x70/0xd0
[  339.164747]  ? trace_hardirqs_off_caller+0xbb/0x310
[  339.169756]  ? trace_hardirqs_on_caller+0xc0/0x310
[  339.174683]  ? syscall_return_slowpath+0x5e0/0x5e0
[  339.179607]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  339.184450]  ? trace_hardirqs_on_caller+0x310/0x310
[  339.189462]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  339.194910]  ? prepare_exit_to_usermode+0x291/0x3b0
[  339.199928]  ? page_fault+0x8/0x30
[  339.203467]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  339.208307]  ? page_fault+0x8/0x30
[  339.211843]  page_fault+0x1e/0x30
[  339.215292] RIP: 0033:0x404068
[  339.218496] Code: Bad RIP value.
[  339.221854] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  339.227210] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  339.234471] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  339.241734] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  339.249018] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  339.256286] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  339.263572] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  339.263577] warn_alloc_show_mem: 1 callbacks suppressed
[  339.263583] Mem-Info:
[  339.270936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  339.276301] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  339.276301]  active_file:13 inactive_file:13 isolated_file:0
[  339.276301]  unevictable:0 dirty:0 writeback:0 unstable:0
[  339.276301]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  339.276301]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  339.276301]  free:13747 free_pcp:348 free_cma:0
[  339.278693] Call Trace:
[  339.288072] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  339.321088]  <IRQ>
[  339.323669] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  339.351504]  dump_stack+0x244/0x39d
[  339.353626] lowmem_reserve[]: 0 2818 6321 6321
[  339.379732]  ? dump_stack_print_info.cold.1+0x20/0x20
[  339.383349] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  339.387931]  warn_alloc.cold.116+0xb7/0x1bd
[  339.393090] lowmem_reserve[]: 0 0 3503 3503
[  339.420582]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  339.424882] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  339.429193]  ? lock_downgrade+0x900/0x900
[  339.434005] lowmem_reserve[]: 0 0 0 0
[  339.463140]  ? trace_hardirqs_off+0xb8/0x310
[  339.467252] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  339.471047]  ? trace_hardirqs_off+0xb8/0x310
[  339.475422] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  339.488939]  __alloc_pages_slowpath+0x26e8/0x2e10
[  339.493421] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  339.508360]  ? warn_alloc+0x120/0x120
[  339.513154] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  339.528396]  ? warn_alloc+0x120/0x120
[  339.532169] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  339.541073]  ? warn_alloc+0x120/0x120
[  339.544850] 4484 total pagecache pages
[  339.553410]  ? print_usage_bug+0xc0/0xc0
[  339.557190] 0 pages in swap cache
[  339.561057]  ? zap_class+0x640/0x640
[  339.565090] Swap cache stats: add 0, delete 0, find 0/0
[  339.568528]  ? kvm_sched_clock_read+0x9/0x20
[  339.572212] Free swap  = 0kB
[  339.577741]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  339.582117] Total swap = 0kB
[  339.585120]  ? print_usage_bug+0xc0/0xc0
[  339.590108] 1965979 pages RAM
[  339.593112]  ? __lock_is_held+0xb5/0x140
[  339.597162] 0 pages HighMem/MovableOnly
[  339.600267]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.605251] 342854 pages reserved
[  339.609210]  ? should_fail+0x22d/0xd01
[  339.614712] 0 pages cma reserved
[  339.618155]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  339.622070] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  339.625361]  ? __lock_acquire+0x62f/0x4c20
[  339.630513] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  339.636920]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  339.641128] syz-fuzzer cpuset=/ mems_allowed=0
[  339.651333]  ? __lock_acquire+0x62f/0x4c20
[  339.651347]  ? should_fail+0x22d/0xd01
[  339.669090]  ? mark_held_locks+0x130/0x130
[  339.673323]  ? mark_held_locks+0x130/0x130
[  339.677552]  ? try_to_wake_up+0x11c/0x1490
[  339.681785]  ? lock_downgrade+0x900/0x900
[  339.685930]  ? zap_class+0x640/0x640
[  339.689645]  ? print_usage_bug+0xc0/0xc0
[  339.693700]  ? trace_hardirqs_off+0xb8/0x310
[  339.698103]  ? kasan_check_read+0x11/0x20
[  339.702250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.707804]  ? check_preemption_disabled+0x48/0x280
[  339.713000]  ? __lock_is_held+0xb5/0x140
[  339.717070]  __alloc_pages_nodemask+0xa80/0xde0
[  339.721738]  ? zap_class+0x640/0x640
[  339.725451]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  339.730478]  ? find_held_lock+0x36/0x1c0
[  339.734546]  ? ____cache_alloc_node+0x1c7/0x1e0
[  339.739213]  ? lock_downgrade+0x900/0x900
[  339.743483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.749027]  cache_grow_begin+0xa5/0x8c0
[  339.753082]  ? do_raw_spin_unlock+0xa7/0x330
[  339.757493]  fallback_alloc+0x204/0x2e0
[  339.761474]  ____cache_alloc_node+0x1c7/0x1e0
[  339.765978]  kmem_cache_alloc_node+0xe3/0x730
[  339.770492]  ? ipv6_get_ifaddr+0x42e/0x620
[  339.774740]  __alloc_skb+0x119/0x770
[  339.778452]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  339.783727]  ? netdev_alloc_frag+0x1f0/0x1f0
[  339.788129]  ? lock_downgrade+0x900/0x900
[  339.792279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.797811]  ? refcount_sub_and_test_checked+0x203/0x310
[  339.803264]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  339.808804]  ? addrconf_rs_timer+0x690/0x690
[  339.813220]  ndisc_alloc_skb+0x144/0x340
[  339.817296]  ndisc_send_rs+0x331/0x6e0
[  339.821197]  addrconf_rs_timer+0x314/0x690
[  339.825446]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  339.829682]  call_timer_fn+0x272/0x920
[  339.833562]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  339.837795]  ? process_timeout+0x40/0x40
[  339.841858]  ? __run_timers+0x7da/0xc70
[  339.845833]  ? _raw_spin_unlock_irq+0x27/0x80
[  339.850324]  ? _raw_spin_unlock_irq+0x27/0x80
[  339.854814]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  339.859048]  ? lockdep_hardirqs_on+0x296/0x5b0
[  339.863626]  ? trace_hardirqs_on+0xbd/0x310
[  339.867959]  ? kasan_check_read+0x11/0x20
[  339.872102]  ? __run_timers+0x7da/0xc70
[  339.876072]  ? trace_hardirqs_off_caller+0x310/0x310
[  339.881180]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  339.885410]  __run_timers+0x7e5/0xc70
[  339.889232]  ? timer_fixup_init+0x70/0x70
[  339.893376]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  339.898387]  ? zap_class+0x640/0x640
[  339.902110]  ? enqueue_hrtimer+0x1a5/0x560
[  339.906342]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  339.911533]  ? find_held_lock+0x36/0x1c0
[  339.915592]  ? zap_class+0x640/0x640
[  339.919301]  ? pvclock_read_flags+0x160/0x160
[  339.923804]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.929339]  ? check_preemption_disabled+0x48/0x280
[  339.934358]  ? __lock_is_held+0xb5/0x140
[  339.938417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.943959]  ? check_preemption_disabled+0x48/0x280
[  339.948976]  run_timer_softirq+0x52/0xb0
[  339.953037]  ? rcu_read_lock_sched_held+0x14f/0x180
[  339.958058]  __do_softirq+0x308/0xb7e
[  339.961860]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  339.966370]  ? lock_downgrade+0x900/0x900
[  339.970517]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  339.975619]  ? pvclock_read_flags+0x160/0x160
[  339.980107]  ? lapic_next_event+0x5a/0x90
[  339.984254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.989794]  ? kvm_clock_read+0x18/0x30
[  339.993776]  ? kvm_sched_clock_read+0x9/0x20
[  339.998182]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.003717]  ? check_preemption_disabled+0x48/0x280
[  340.008739]  irq_exit+0x17f/0x1c0
[  340.012205]  smp_apic_timer_interrupt+0x1cb/0x760
[  340.017039]  ? smp_reschedule_interrupt+0x109/0x650
[  340.022052]  ? smp_call_function_single_interrupt+0x650/0x650
[  340.027968]  ? interrupt_entry+0xb5/0xc0
[  340.032027]  ? trace_hardirqs_off_caller+0xbb/0x310
[  340.037037]  ? trace_hardirqs_off_caller+0xbb/0x310
[  340.042053]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.046894]  ? trace_hardirqs_on_caller+0x310/0x310
[  340.051911]  ? trace_hardirqs_on_caller+0x310/0x310
[  340.056945]  ? task_prio+0x50/0x50
[  340.060484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.066019]  ? check_preemption_disabled+0x48/0x280
[  340.071048]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.075892]  apic_timer_interrupt+0xf/0x20
[  340.080126]  </IRQ>
[  340.082361] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  340.087286] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  340.106189] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  340.113889] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  340.121153] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  340.128415] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  340.135675] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  340.142942] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  340.150243]  skb_clone+0x1bb/0x500
[  340.153784]  ? finish_task_switch+0x2f4/0x910
[  340.158275]  ? skb_split+0x11e0/0x11e0
[  340.162167]  ? preempt_notifier_register+0x200/0x200
[  340.167261]  ? __switch_to_asm+0x34/0x70
[  340.171350]  ? __switch_to_asm+0x34/0x70
[  340.175403]  ? __switch_to_asm+0x40/0x70
[  340.179460]  ? __switch_to_asm+0x34/0x70
[  340.183532]  ? __switch_to_asm+0x40/0x70
[  340.187585]  ? __switch_to_asm+0x34/0x70
[  340.191637]  ? __switch_to_asm+0x40/0x70
[  340.195690]  ? __switch_to_asm+0x34/0x70
[  340.199742]  ? __switch_to_asm+0x34/0x70
[  340.203794]  ? __switch_to_asm+0x40/0x70
[  340.207940]  ? __switch_to_asm+0x34/0x70
[  340.212000]  bpf_clone_redirect+0xb9/0x490
[  340.216234]  ? __schedule+0x8d7/0x21d0
[  340.220124]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  340.225138]  ? __sched_text_start+0x8/0x8
[  340.229281]  ? retint_kernel+0x2d/0x2d
[  340.233181]  ? find_held_lock+0x36/0x1c0
[  340.237259]  ? lock_acquire+0x1ed/0x520
[  340.241234]  ? bpf_test_run+0x3cb/0x780
[  340.245207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.250746]  ? check_preemption_disabled+0x48/0x280
[  340.255763]  ? kasan_check_read+0x11/0x20
[  340.260018]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.265290]  ? rcu_softirq_qs+0x20/0x20
[  340.269262]  ? preempt_schedule+0x4d/0x60
[  340.273404]  ? ___preempt_schedule+0x16/0x18
[  340.277815]  ? bpf_test_run+0x25d/0x780
[  340.281794]  ? netlink_diag_dump+0x2a0/0x2a0
[  340.286202]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  340.291730]  ? bpf_test_init.isra.10+0x70/0x100
[  340.296398]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  340.301156]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  340.306016]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  340.311548]  ? fput+0x130/0x1a0
[  340.314826]  ? __bpf_prog_get+0x9b/0x290
[  340.318884]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  340.323742]  ? bpf_prog_test_run+0x130/0x1a0
[  340.328151]  ? __x64_sys_bpf+0x3d8/0x520
[  340.332211]  ? bpf_prog_get+0x20/0x20
[  340.336055]  ? do_syscall_64+0x1b9/0x820
[  340.340114]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  340.345475]  ? syscall_return_slowpath+0x5e0/0x5e0
[  340.350399]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.355238]  ? trace_hardirqs_on_caller+0x310/0x310
[  340.360248]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  340.365264]  ? prepare_exit_to_usermode+0x291/0x3b0
[  340.370278]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.375124]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  340.380500] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  340.380568] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  340.387510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  340.387515] Call Trace:
[  340.387521]  <IRQ>
[  340.387537]  dump_stack+0x244/0x39d
[  340.387556]  ? dump_stack_print_info.cold.1+0x20/0x20
[  340.394065] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  340.403368]  warn_alloc.cold.116+0xb7/0x1bd
[  340.405922] syz-executor2 cpuset=syz2 mems_allowed=0
[  340.408069]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  340.441555]  ? lock_downgrade+0x900/0x900
[  340.445705]  ? trace_hardirqs_off+0xb8/0x310
[  340.450133]  ? trace_hardirqs_off+0xb8/0x310
[  340.454544]  __alloc_pages_slowpath+0x26e8/0x2e10
[  340.459419]  ? warn_alloc+0x120/0x120
[  340.463330]  ? print_usage_bug+0xc0/0xc0
[  340.467477]  ? warn_alloc+0x120/0x120
[  340.471279]  ? warn_alloc+0x120/0x120
[  340.475079]  ? print_usage_bug+0xc0/0xc0
[  340.479132]  ? kvm_clock_read+0x18/0x30
[  340.483102]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  340.488113]  ? print_usage_bug+0xc0/0xc0
[  340.492170]  ? __lock_acquire+0x62f/0x4c20
[  340.496512]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  340.502042]  ? should_fail+0x22d/0xd01
[  340.505922]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.511204]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  340.516300]  ? __lock_acquire+0x62f/0x4c20
[  340.520533]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  340.525632]  ? __lock_acquire+0x62f/0x4c20
[  340.529859]  ? should_fail+0x22d/0xd01
[  340.533837]  ? rcu_irq_exit+0x1a2/0x390
[  340.537814]  ? mark_held_locks+0x130/0x130
[  340.542047]  ? mark_held_locks+0x130/0x130
[  340.546390]  ? mark_held_locks+0xc7/0x130
[  340.550534]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  340.555550]  ? zap_class+0x640/0x640
[  340.559263]  ? print_usage_bug+0xc0/0xc0
[  340.563328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.568862]  ? check_preemption_disabled+0x48/0x280
[  340.573975]  ? __lock_is_held+0xb5/0x140
[  340.578036]  __alloc_pages_nodemask+0xa80/0xde0
[  340.582698]  ? zap_class+0x640/0x640
[  340.586535]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  340.591557]  ? find_held_lock+0x36/0x1c0
[  340.595635]  ? ____cache_alloc_node+0x1c7/0x1e0
[  340.600302]  ? lock_downgrade+0x900/0x900
[  340.604452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.610004]  cache_grow_begin+0xa5/0x8c0
[  340.614058]  ? do_raw_spin_unlock+0xa7/0x330
[  340.618470]  fallback_alloc+0x204/0x2e0
[  340.622537]  ____cache_alloc_node+0x1c7/0x1e0
[  340.627036]  kmem_cache_alloc_node+0xe3/0x730
[  340.631531]  ? ipv6_get_ifaddr+0x42e/0x620
[  340.636121]  __alloc_skb+0x119/0x770
[  340.639843]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.645143]  ? netdev_alloc_frag+0x1f0/0x1f0
[  340.649562]  ? lock_downgrade+0x900/0x900
[  340.653716]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.659253]  ? refcount_sub_and_test_checked+0x203/0x310
[  340.664716]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  340.670183]  ? addrconf_rs_timer+0x690/0x690
[  340.674597]  ndisc_alloc_skb+0x144/0x340
[  340.678655]  ndisc_send_rs+0x331/0x6e0
[  340.682543]  addrconf_rs_timer+0x314/0x690
[  340.686890]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  340.691136]  call_timer_fn+0x272/0x920
[  340.695023]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  340.699256]  ? process_timeout+0x40/0x40
[  340.703320]  ? mark_held_locks+0xc7/0x130
[  340.707466]  ? _raw_spin_unlock_irq+0x27/0x80
[  340.711958]  ? _raw_spin_unlock_irq+0x27/0x80
[  340.716446]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  340.720674]  ? lockdep_hardirqs_on+0x296/0x5b0
[  340.725252]  ? trace_hardirqs_on+0xbd/0x310
[  340.729567]  ? kasan_check_read+0x11/0x20
[  340.733709]  ? __run_timers+0x7da/0xc70
[  340.737680]  ? trace_hardirqs_off_caller+0x310/0x310
[  340.742786]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  340.747025]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  340.751258]  __run_timers+0x7e5/0xc70
[  340.755063]  ? timer_fixup_init+0x70/0x70
[  340.759206]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  340.764224]  ? zap_class+0x640/0x640
[  340.767942]  ? print_usage_bug+0xc0/0xc0
[  340.772001]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  340.777194]  ? find_held_lock+0x36/0x1c0
[  340.781260]  ? zap_class+0x640/0x640
[  340.784975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.790508]  ? check_preemption_disabled+0x48/0x280
[  340.795525]  ? __lock_is_held+0xb5/0x140
[  340.799580]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.805116]  ? check_preemption_disabled+0x48/0x280
[  340.810143]  run_timer_softirq+0x52/0xb0
[  340.814198]  ? rcu_read_lock_sched_held+0x14f/0x180
[  340.819212]  __do_softirq+0x308/0xb7e
[  340.823011]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  340.827502]  ? lock_downgrade+0x900/0x900
[  340.831654]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  340.836759]  ? pvclock_read_flags+0x160/0x160
[  340.841252]  ? lapic_next_event+0x5a/0x90
[  340.845402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.850939]  ? kvm_clock_read+0x18/0x30
[  340.854907]  ? kvm_sched_clock_read+0x9/0x20
[  340.859319]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  340.864861]  ? check_preemption_disabled+0x48/0x280
[  340.869893]  irq_exit+0x17f/0x1c0
[  340.873363]  smp_apic_timer_interrupt+0x1cb/0x760
[  340.878217]  ? smp_call_function_single_interrupt+0x650/0x650
[  340.884093]  ? interrupt_entry+0xb5/0xc0
[  340.888157]  ? trace_hardirqs_off_caller+0xbb/0x310
[  340.893169]  ? trace_hardirqs_off_caller+0xbb/0x310
[  340.898639]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.903481]  ? trace_hardirqs_on_caller+0x310/0x310
[  340.908490]  ? trace_hardirqs_on_caller+0x310/0x310
[  340.913500]  ? task_prio+0x50/0x50
[  340.917036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.922587]  ? check_preemption_disabled+0x48/0x280
[  340.927607]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.932465]  apic_timer_interrupt+0xf/0x20
[  340.936695]  </IRQ>
[  340.938936] RIP: 0010:dump_stack+0x358/0x39d
[  340.943342] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  340.962240] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  340.969942] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  340.977300] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  340.984560] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  340.991824] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  340.999190] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  341.006467]  ? dump_stack+0x34f/0x39d
[  341.010274]  ? dump_stack_print_info.cold.1+0x20/0x20
[  341.015464]  ? mark_held_locks+0x130/0x130
[  341.019692]  ? mark_held_locks+0x130/0x130
[  341.023931]  dump_header+0x27b/0xf72
[  341.027652]  ? pagefault_out_of_memory+0x197/0x197
[  341.032587]  ? __lock_acquire+0x62f/0x4c20
[  341.036817]  ? percpu_ref_get_many+0x240/0x240
[  341.041406]  ? print_usage_bug+0xc0/0xc0
[  341.045469]  ? zap_class+0x640/0x640
[  341.049192]  ? print_usage_bug+0xc0/0xc0
[  341.053245]  ? print_usage_bug+0xc0/0xc0
[  341.057302]  ? zap_class+0x640/0x640
[  341.061017]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  341.066807]  ? find_held_lock+0x36/0x1c0
[  341.070967]  ? mark_held_locks+0xc7/0x130
[  341.075110]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  341.080209]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  341.085302]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  341.089881]  ? trace_hardirqs_on+0xbd/0x310
[  341.094222]  ? kasan_check_read+0x11/0x20
[  341.098368]  ? ___ratelimit+0x3b4/0x672
[  341.102336]  ? trace_hardirqs_off_caller+0x310/0x310
[  341.107431]  ? trace_hardirqs_on+0x310/0x310
[  341.111847]  ? lock_downgrade+0x900/0x900
[  341.115997]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  341.121095]  ? ___ratelimit+0x3b9/0x672
[  341.125068]  ? idr_get_free+0xf70/0xf70
[  341.129035]  ? find_held_lock+0x36/0x1c0
[  341.133099]  oom_kill_process.cold.27+0x10/0x903
[  341.137875]  ? zap_class+0x640/0x640
[  341.141586]  ? check_preemption_disabled+0x48/0x280
[  341.146604]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  341.151526]  ? kasan_check_read+0x11/0x20
[  341.155667]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.160943]  ? oom_evaluate_task+0x540/0x540
[  341.165351]  ? find_held_lock+0x36/0x1c0
[  341.169433]  ? out_of_memory+0x974/0x1430
[  341.173593]  ? lock_downgrade+0x900/0x900
[  341.177772]  ? check_preemption_disabled+0x48/0x280
[  341.182801]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  341.187733]  ? kasan_check_read+0x11/0x20
[  341.191892]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.197166]  ? rcu_softirq_qs+0x20/0x20
[  341.201142]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.206673]  ? oom_evaluate_task+0x302/0x540
[  341.211087]  out_of_memory+0xa84/0x1430
[  341.215066]  ? oom_killer_disable+0x3a0/0x3a0
[  341.219564]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  341.224490]  ? __ww_mutex_check_waiters+0x160/0x160
[  341.229510]  __alloc_pages_slowpath+0x2354/0x2e10
[  341.234472]  ? warn_alloc+0x120/0x120
[  341.238265]  ? mark_held_locks+0x130/0x130
[  341.242498]  ? find_get_entry+0xaae/0x1120
[  341.246737]  ? filemap_map_pages+0x1a20/0x1a20
[  341.251317]  ? zap_class+0x640/0x640
[  341.255031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  341.260563]  ? check_preemption_disabled+0x48/0x280
[  341.265585]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.271117]  ? should_fail+0x22d/0xd01
[  341.275027]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  341.280126]  ? zap_class+0x640/0x640
[  341.283946]  ? __lock_is_held+0xb5/0x140
[  341.288027]  ? mark_held_locks+0x130/0x130
[  341.292258]  ? lock_release+0xa00/0xa00
[  341.296230]  ? perf_trace_sched_process_exec+0x860/0x860
[  341.301675]  ? xa_load+0x2ba/0x460
[  341.305218]  ? lock_downgrade+0x900/0x900
[  341.309369]  ? __might_sleep+0x95/0x190
[  341.313362]  __alloc_pages_nodemask+0xa80/0xde0
[  341.318037]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  341.323059]  ? __page_cache_alloc+0x191/0x5c0
[  341.327548]  ? xa_load+0x2e1/0x460
[  341.331081]  ? xa_clear_mark+0x40/0x40
[  341.334966]  ? zap_class+0x640/0x640
[  341.338680]  ? zap_class+0x640/0x640
[  341.342388]  ? zap_class+0x640/0x640
[  341.346097]  ? __do_page_cache_readahead+0x663/0x810
[  341.351198]  ? find_held_lock+0x36/0x1c0
[  341.355259]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  341.360799]  alloc_pages_current+0x173/0x350
[  341.365212]  __page_cache_alloc+0x38c/0x5c0
[  341.369525]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  341.374481]  ? kasan_check_read+0x11/0x20
[  341.378621]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.383908]  ? generic_perform_write+0x6a0/0x6a0
[  341.388677]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.394222]  ? check_preemption_disabled+0x48/0x280
[  341.399264]  filemap_fault+0x1595/0x25f0
[  341.403421]  ? __lock_page_or_retry+0xa00/0xa00
[  341.408107]  ? mark_held_locks+0x130/0x130
[  341.412436]  ? filemap_map_pages+0xd6b/0x1a20
[  341.416926]  ? lock_downgrade+0x900/0x900
[  341.421066]  ? check_preemption_disabled+0x48/0x280
[  341.426082]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  341.431005]  ? kasan_check_read+0x11/0x20
[  341.435143]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.440417]  ? rcu_softirq_qs+0x20/0x20
[  341.444416]  ? filemap_map_pages+0xd92/0x1a20
[  341.448918]  ? find_get_entries_tag+0x1400/0x1400
[  341.453756]  ? find_held_lock+0x36/0x1c0
[  341.457850]  ? lock_acquire+0x1ed/0x520
[  341.461837]  ? ext4_filemap_fault+0x7a/0xad
[  341.466186]  ? lock_release+0xa00/0xa00
[  341.470165]  ? perf_trace_sched_process_exec+0x860/0x860
[  341.475614]  ? print_usage_bug+0xc0/0xc0
[  341.479687]  ? down_read+0x8d/0x120
[  341.483319]  ? ext4_filemap_fault+0x7a/0xad
[  341.487633]  ? __down_interruptible+0x700/0x700
[  341.492294]  ? find_held_lock+0x36/0x1c0
[  341.496349]  ext4_filemap_fault+0x82/0xad
[  341.500499]  __do_fault+0x100/0x6b0
[  341.504131]  ? lock_downgrade+0x900/0x900
[  341.508282]  ? pmd_devmap_trans_unstable+0x220/0x220
[  341.513388]  ? kasan_check_read+0x11/0x20
[  341.517533]  ? do_raw_spin_unlock+0xa7/0x330
[  341.522041]  ? do_raw_spin_trylock+0x270/0x270
[  341.526632]  __handle_mm_fault+0x3ea0/0x5be0
[  341.531035]  ? perf_trace_lock+0x7a0/0x7a0
[  341.535271]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  341.540217]  ? __switch_to_asm+0x34/0x70
[  341.544289]  ? __switch_to_asm+0x34/0x70
[  341.548358]  ? zap_class+0x640/0x640
[  341.552069]  ? zap_class+0x640/0x640
[  341.555795]  ? __x64_sys_futex+0x53e/0x6a0
[  341.560038]  ? find_held_lock+0x36/0x1c0
[  341.564101]  ? handle_mm_fault+0x42a/0xc70
[  341.568426]  ? lock_downgrade+0x900/0x900
[  341.572571]  ? check_preemption_disabled+0x48/0x280
[  341.577586]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  341.582513]  ? kasan_check_read+0x11/0x20
[  341.586658]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.591945]  ? rcu_softirq_qs+0x20/0x20
[  341.595912]  ? trace_hardirqs_off_caller+0x310/0x310
[  341.601015]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.606549]  ? check_preemption_disabled+0x48/0x280
[  341.611570]  handle_mm_fault+0x54f/0xc70
[  341.615626]  ? __handle_mm_fault+0x5be0/0x5be0
[  341.620229]  ? find_vma+0x34/0x190
[  341.623769]  __do_page_fault+0x5e8/0xe60
[  341.627828]  ? trace_hardirqs_off+0xb8/0x310
[  341.632248]  do_page_fault+0xf2/0x7e0
[  341.636048]  ? vmalloc_sync_all+0x30/0x30
[  341.640188]  ? error_entry+0x70/0xd0
[  341.643896]  ? trace_hardirqs_off_caller+0xbb/0x310
[  341.648906]  ? trace_hardirqs_on_caller+0xc0/0x310
[  341.653833]  ? syscall_return_slowpath+0x5e0/0x5e0
[  341.658767]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  341.663618]  ? trace_hardirqs_on_caller+0x310/0x310
[  341.668626]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  341.674080]  ? prepare_exit_to_usermode+0x291/0x3b0
[  341.679090]  ? page_fault+0x8/0x30
[  341.682628]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  341.687467]  ? page_fault+0x8/0x30
[  341.691004]  page_fault+0x1e/0x30
[  341.694449] RIP: 0033:0x404068
[  341.697649] Code: Bad RIP value.
[  341.701003] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  341.706370] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  341.713646] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  341.720908] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  341.728169] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  341.735429] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  341.742716] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  341.742720] warn_alloc_show_mem: 1 callbacks suppressed
[  341.742726] Mem-Info:
[  341.750077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  341.755439] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  341.755439]  active_file:13 inactive_file:13 isolated_file:0
[  341.755439]  unevictable:0 dirty:0 writeback:0 unstable:0
[  341.755439]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  341.755439]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  341.755439]  free:13747 free_pcp:348 free_cma:0
[  341.757810] Call Trace:
[  341.767181] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  341.800202]  <IRQ>
[  341.802765] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  341.830617]  dump_stack+0x244/0x39d
[  341.832736] lowmem_reserve[]: 0 2818 6321 6321
[  341.858836]  ? dump_stack_print_info.cold.1+0x20/0x20
[  341.862434] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  341.867094]  warn_alloc.cold.116+0xb7/0x1bd
[  341.872249] lowmem_reserve[]: 0 0 3503 3503
[  341.899735]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  341.904027] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  341.908347]  ? lock_downgrade+0x900/0x900
[  341.913154] lowmem_reserve[]: 0 0 0 0
[  341.942378]  ? trace_hardirqs_off+0xb8/0x310
[  341.946495] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  341.950287]  ? trace_hardirqs_off+0xb8/0x310
[  341.954661] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  341.968176]  __alloc_pages_slowpath+0x26e8/0x2e10
[  341.972553] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  341.987488]  ? warn_alloc+0x120/0x120
[  341.992299] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  342.007455]  ? print_usage_bug+0xc0/0xc0
[  342.011231] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  342.020050]  ? warn_alloc+0x120/0x120
[  342.024092] 4484 total pagecache pages
[  342.032652]  ? warn_alloc+0x120/0x120
[  342.036430] 0 pages in swap cache
[  342.040299]  ? print_usage_bug+0xc0/0xc0
[  342.044430] Swap cache stats: add 0, delete 0, find 0/0
[  342.047884]  ? print_usage_bug+0xc0/0xc0
[  342.051916] Free swap  = 0kB
[  342.057273]  ? __lock_acquire+0x62f/0x4c20
[  342.061311] Total swap = 0kB
[  342.064337]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  342.068537] 1965979 pages RAM
[  342.071542]  ? should_fail+0x22d/0xd01
[  342.077051] 0 pages HighMem/MovableOnly
[  342.080145]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  342.084005] 342854 pages reserved
[  342.087963]  ? __lock_acquire+0x62f/0x4c20
[  342.093054] 0 pages cma reserved
[  342.096513]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  342.100789] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  342.104068]  ? __lock_acquire+0x62f/0x4c20
[  342.104083]  ? should_fail+0x22d/0xd01
[  342.109238] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  342.115637]  ? find_held_lock+0x36/0x1c0
[  342.119841] syz-fuzzer cpuset=/ mems_allowed=0
[  342.123718]  ? mark_held_locks+0x130/0x130
[  342.146838]  ? mark_held_locks+0x130/0x130
[  342.151068]  ? zap_class+0x640/0x640
[  342.154785]  ? zap_class+0x640/0x640
[  342.158497]  ? print_usage_bug+0xc0/0xc0
[  342.162552]  ? do_raw_spin_unlock+0xa7/0x330
[  342.166956]  ? zap_class+0x640/0x640
[  342.170687]  ? print_usage_bug+0xc0/0xc0
[  342.174740]  ? wq_watchdog_touch+0x9c/0xfe
[  342.178979]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.184530]  ? check_preemption_disabled+0x48/0x280
[  342.189554]  ? __lock_is_held+0xb5/0x140
[  342.193793]  __alloc_pages_nodemask+0xa80/0xde0
[  342.198461]  ? zap_class+0x640/0x640
[  342.202174]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  342.207193]  ? find_held_lock+0x36/0x1c0
[  342.211257]  ? ____cache_alloc_node+0x1c7/0x1e0
[  342.215935]  ? lock_downgrade+0x900/0x900
[  342.220085]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.225622]  cache_grow_begin+0xa5/0x8c0
[  342.229679]  ? do_raw_spin_unlock+0xa7/0x330
[  342.234095]  fallback_alloc+0x204/0x2e0
[  342.238071]  ____cache_alloc_node+0x1c7/0x1e0
[  342.242566]  kmem_cache_alloc_node+0xe3/0x730
[  342.247057]  ? ipv6_get_ifaddr+0x42e/0x620
[  342.251314]  __alloc_skb+0x119/0x770
[  342.255030]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  342.260310]  ? netdev_alloc_frag+0x1f0/0x1f0
[  342.264716]  ? lock_downgrade+0x900/0x900
[  342.268873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.274409]  ? refcount_sub_and_test_checked+0x203/0x310
[  342.279862]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  342.285314]  ? addrconf_rs_timer+0x690/0x690
[  342.289730]  ndisc_alloc_skb+0x144/0x340
[  342.293803]  ndisc_send_rs+0x331/0x6e0
[  342.297689]  addrconf_rs_timer+0x314/0x690
[  342.301927]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  342.306166]  call_timer_fn+0x272/0x920
[  342.310050]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  342.314277]  ? process_timeout+0x40/0x40
[  342.318348]  ? __run_timers+0x7da/0xc70
[  342.322324]  ? _raw_spin_unlock_irq+0x27/0x80
[  342.326814]  ? _raw_spin_unlock_irq+0x27/0x80
[  342.331310]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  342.335543]  ? lockdep_hardirqs_on+0x296/0x5b0
[  342.340121]  ? trace_hardirqs_on+0xbd/0x310
[  342.344441]  ? kasan_check_read+0x11/0x20
[  342.348582]  ? __run_timers+0x7da/0xc70
[  342.352551]  ? trace_hardirqs_off_caller+0x310/0x310
[  342.357657]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  342.361891]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  342.366118]  __run_timers+0x7e5/0xc70
[  342.369923]  ? timer_fixup_init+0x70/0x70
[  342.374073]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  342.379086]  ? zap_class+0x640/0x640
[  342.382801]  ? enqueue_hrtimer+0x1a5/0x560
[  342.387038]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  342.392227]  ? find_held_lock+0x36/0x1c0
[  342.396293]  ? zap_class+0x640/0x640
[  342.400006]  ? pvclock_read_flags+0x160/0x160
[  342.404500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.410033]  ? check_preemption_disabled+0x48/0x280
[  342.415152]  ? __lock_is_held+0xb5/0x140
[  342.419215]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.424764]  ? check_preemption_disabled+0x48/0x280
[  342.429806]  run_timer_softirq+0x52/0xb0
[  342.433989]  ? rcu_read_lock_sched_held+0x14f/0x180
[  342.439002]  __do_softirq+0x308/0xb7e
[  342.442805]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  342.447306]  ? lock_downgrade+0x900/0x900
[  342.451451]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  342.456556]  ? pvclock_read_flags+0x160/0x160
[  342.461051]  ? lapic_next_event+0x5a/0x90
[  342.465195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.470759]  ? kvm_clock_read+0x18/0x30
[  342.474751]  ? kvm_sched_clock_read+0x9/0x20
[  342.479167]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.484705]  ? check_preemption_disabled+0x48/0x280
[  342.489736]  irq_exit+0x17f/0x1c0
[  342.493185]  smp_apic_timer_interrupt+0x1cb/0x760
[  342.498020]  ? smp_reschedule_interrupt+0x109/0x650
[  342.503033]  ? smp_call_function_single_interrupt+0x650/0x650
[  342.508911]  ? interrupt_entry+0xb5/0xc0
[  342.512970]  ? trace_hardirqs_off_caller+0xbb/0x310
[  342.517978]  ? trace_hardirqs_off_caller+0xbb/0x310
[  342.522988]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  342.527835]  ? trace_hardirqs_on_caller+0x310/0x310
[  342.532844]  ? trace_hardirqs_on_caller+0x310/0x310
[  342.537854]  ? task_prio+0x50/0x50
[  342.541409]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.546942]  ? check_preemption_disabled+0x48/0x280
[  342.551958]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  342.556804]  apic_timer_interrupt+0xf/0x20
[  342.561117]  </IRQ>
[  342.563350] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  342.568297] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  342.587192] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  342.594897] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  342.602158] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  342.609422] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  342.616683] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  342.623957] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  342.631270]  skb_clone+0x1bb/0x500
[  342.634812]  ? finish_task_switch+0x2f4/0x910
[  342.639306]  ? skb_split+0x11e0/0x11e0
[  342.643188]  ? preempt_notifier_register+0x200/0x200
[  342.648289]  ? __switch_to_asm+0x34/0x70
[  342.652343]  ? __switch_to_asm+0x34/0x70
[  342.656399]  ? __switch_to_asm+0x40/0x70
[  342.660454]  ? __switch_to_asm+0x34/0x70
[  342.664523]  ? __switch_to_asm+0x40/0x70
[  342.668576]  ? __switch_to_asm+0x34/0x70
[  342.672644]  ? __switch_to_asm+0x40/0x70
[  342.676697]  ? __switch_to_asm+0x34/0x70
[  342.680760]  ? __switch_to_asm+0x34/0x70
[  342.684816]  ? __switch_to_asm+0x40/0x70
[  342.688870]  ? __switch_to_asm+0x34/0x70
[  342.692961]  bpf_clone_redirect+0xb9/0x490
[  342.697195]  ? __schedule+0x8d7/0x21d0
[  342.701083]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  342.706093]  ? __sched_text_start+0x8/0x8
[  342.710241]  ? retint_kernel+0x2d/0x2d
[  342.714137]  ? find_held_lock+0x36/0x1c0
[  342.718202]  ? lock_acquire+0x1ed/0x520
[  342.722185]  ? bpf_test_run+0x3cb/0x780
[  342.726160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.731695]  ? check_preemption_disabled+0x48/0x280
[  342.736730]  ? kasan_check_read+0x11/0x20
[  342.740873]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  342.746168]  ? rcu_softirq_qs+0x20/0x20
[  342.750150]  ? preempt_schedule+0x4d/0x60
[  342.754310]  ? ___preempt_schedule+0x16/0x18
[  342.758729]  ? bpf_test_run+0x25d/0x780
[  342.762736]  ? netlink_diag_dump+0x2a0/0x2a0
[  342.767250]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  342.772792]  ? bpf_test_init.isra.10+0x70/0x100
[  342.777460]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  342.782224]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  342.787067]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  342.792598]  ? fput+0x130/0x1a0
[  342.795873]  ? __bpf_prog_get+0x9b/0x290
[  342.800017]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  342.804858]  ? bpf_prog_test_run+0x130/0x1a0
[  342.809269]  ? __x64_sys_bpf+0x3d8/0x520
[  342.813325]  ? bpf_prog_get+0x20/0x20
[  342.817142]  ? do_syscall_64+0x1b9/0x820
[  342.821201]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  342.826563]  ? syscall_return_slowpath+0x5e0/0x5e0
[  342.831574]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  342.836417]  ? trace_hardirqs_on_caller+0x310/0x310
[  342.841430]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  342.846444]  ? prepare_exit_to_usermode+0x291/0x3b0
[  342.851461]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  342.856308]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  342.861685] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  342.861798] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  342.868709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  342.868714] Call Trace:
[  342.868721]  <IRQ>
[  342.868738]  dump_stack+0x244/0x39d
[  342.868773]  ? dump_stack_print_info.cold.1+0x20/0x20
[  342.875292] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  342.884603]  warn_alloc.cold.116+0xb7/0x1bd
[  342.887154] syz-executor2 cpuset=syz2 mems_allowed=0
[  342.889292]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  342.923251]  ? lock_downgrade+0x900/0x900
[  342.927407]  ? trace_hardirqs_off+0xb8/0x310
[  342.931820]  ? trace_hardirqs_off+0xb8/0x310
[  342.936236]  __alloc_pages_slowpath+0x26e8/0x2e10
[  342.941100]  ? warn_alloc+0x120/0x120
[  342.944898]  ? print_usage_bug+0xc0/0xc0
[  342.948968]  ? warn_alloc+0x120/0x120
[  342.952777]  ? warn_alloc+0x120/0x120
[  342.956585]  ? print_usage_bug+0xc0/0xc0
[  342.960645]  ? kvm_clock_read+0x18/0x30
[  342.964617]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  342.969631]  ? print_usage_bug+0xc0/0xc0
[  342.973696]  ? __lock_acquire+0x62f/0x4c20
[  342.977933]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  342.983485]  ? should_fail+0x22d/0xd01
[  342.987367]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  342.992639]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  342.997747]  ? __lock_acquire+0x62f/0x4c20
[  343.001984]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  343.007079]  ? __lock_acquire+0x62f/0x4c20
[  343.011415]  ? should_fail+0x22d/0xd01
[  343.015291]  ? rcu_irq_exit+0x1a2/0x390
[  343.019267]  ? mark_held_locks+0x130/0x130
[  343.023515]  ? mark_held_locks+0x130/0x130
[  343.027753]  ? mark_held_locks+0xc7/0x130
[  343.031919]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  343.036930]  ? zap_class+0x640/0x640
[  343.040641]  ? print_usage_bug+0xc0/0xc0
[  343.044704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.050242]  ? check_preemption_disabled+0x48/0x280
[  343.055280]  ? __lock_is_held+0xb5/0x140
[  343.059341]  __alloc_pages_nodemask+0xa80/0xde0
[  343.064006]  ? zap_class+0x640/0x640
[  343.068113]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  343.073140]  ? find_held_lock+0x36/0x1c0
[  343.077205]  ? ____cache_alloc_node+0x1c7/0x1e0
[  343.081871]  ? lock_downgrade+0x900/0x900
[  343.086020]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.091571]  cache_grow_begin+0xa5/0x8c0
[  343.095630]  ? do_raw_spin_unlock+0xa7/0x330
[  343.100036]  fallback_alloc+0x204/0x2e0
[  343.104011]  ____cache_alloc_node+0x1c7/0x1e0
[  343.108506]  kmem_cache_alloc_node+0xe3/0x730
[  343.112996]  ? ipv6_get_ifaddr+0x42e/0x620
[  343.117236]  __alloc_skb+0x119/0x770
[  343.120961]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  343.126246]  ? netdev_alloc_frag+0x1f0/0x1f0
[  343.130647]  ? lock_downgrade+0x900/0x900
[  343.134801]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.140336]  ? refcount_sub_and_test_checked+0x203/0x310
[  343.145784]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  343.151227]  ? addrconf_rs_timer+0x690/0x690
[  343.155641]  ndisc_alloc_skb+0x144/0x340
[  343.159709]  ndisc_send_rs+0x331/0x6e0
[  343.163613]  addrconf_rs_timer+0x314/0x690
[  343.167865]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  343.172110]  call_timer_fn+0x272/0x920
[  343.175991]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  343.180222]  ? process_timeout+0x40/0x40
[  343.184287]  ? mark_held_locks+0xc7/0x130
[  343.188431]  ? _raw_spin_unlock_irq+0x27/0x80
[  343.192922]  ? _raw_spin_unlock_irq+0x27/0x80
[  343.197432]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  343.201677]  ? lockdep_hardirqs_on+0x296/0x5b0
[  343.206258]  ? trace_hardirqs_on+0xbd/0x310
[  343.210572]  ? kasan_check_read+0x11/0x20
[  343.214723]  ? __run_timers+0x7da/0xc70
[  343.218702]  ? trace_hardirqs_off_caller+0x310/0x310
[  343.223811]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  343.228051]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  343.232279]  __run_timers+0x7e5/0xc70
[  343.236084]  ? timer_fixup_init+0x70/0x70
[  343.240228]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  343.245243]  ? zap_class+0x640/0x640
[  343.248956]  ? print_usage_bug+0xc0/0xc0
[  343.253013]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  343.258205]  ? find_held_lock+0x36/0x1c0
[  343.262296]  ? zap_class+0x640/0x640
[  343.266014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.271556]  ? check_preemption_disabled+0x48/0x280
[  343.276576]  ? __lock_is_held+0xb5/0x140
[  343.280650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.286186]  ? check_preemption_disabled+0x48/0x280
[  343.291204]  run_timer_softirq+0x52/0xb0
[  343.295260]  ? rcu_read_lock_sched_held+0x14f/0x180
[  343.300269]  __do_softirq+0x308/0xb7e
[  343.304068]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  343.308556]  ? lock_downgrade+0x900/0x900
[  343.312703]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  343.317812]  ? pvclock_read_flags+0x160/0x160
[  343.322304]  ? lapic_next_event+0x5a/0x90
[  343.326449]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.332082]  ? kvm_clock_read+0x18/0x30
[  343.336049]  ? kvm_sched_clock_read+0x9/0x20
[  343.340457]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  343.345994]  ? check_preemption_disabled+0x48/0x280
[  343.351022]  irq_exit+0x17f/0x1c0
[  343.354474]  smp_apic_timer_interrupt+0x1cb/0x760
[  343.359316]  ? smp_call_function_single_interrupt+0x650/0x650
[  343.365197]  ? interrupt_entry+0xb5/0xc0
[  343.369340]  ? trace_hardirqs_off_caller+0xbb/0x310
[  343.374353]  ? trace_hardirqs_off_caller+0xbb/0x310
[  343.379364]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  343.384204]  ? trace_hardirqs_on_caller+0x310/0x310
[  343.389228]  ? trace_hardirqs_on_caller+0x310/0x310
[  343.394241]  ? task_prio+0x50/0x50
[  343.397781]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.403411]  ? check_preemption_disabled+0x48/0x280
[  343.408441]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  343.413289]  apic_timer_interrupt+0xf/0x20
[  343.417601]  </IRQ>
[  343.419839] RIP: 0010:dump_stack+0x358/0x39d
[  343.424246] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  343.443140] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  343.450846] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  343.458198] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  343.465461] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  343.472722] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  343.479984] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  343.487262]  ? dump_stack+0x34f/0x39d
[  343.491069]  ? dump_stack_print_info.cold.1+0x20/0x20
[  343.496258]  ? mark_held_locks+0x130/0x130
[  343.500484]  ? mark_held_locks+0x130/0x130
[  343.504725]  dump_header+0x27b/0xf72
[  343.508452]  ? pagefault_out_of_memory+0x197/0x197
[  343.513382]  ? __lock_acquire+0x62f/0x4c20
[  343.517618]  ? percpu_ref_get_many+0x240/0x240
[  343.522290]  ? print_usage_bug+0xc0/0xc0
[  343.526439]  ? zap_class+0x640/0x640
[  343.530237]  ? print_usage_bug+0xc0/0xc0
[  343.534293]  ? print_usage_bug+0xc0/0xc0
[  343.538352]  ? zap_class+0x640/0x640
[  343.542077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.547613]  ? find_held_lock+0x36/0x1c0
[  343.551684]  ? mark_held_locks+0xc7/0x130
[  343.555852]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  343.560950]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  343.566050]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  343.570630]  ? trace_hardirqs_on+0xbd/0x310
[  343.574954]  ? kasan_check_read+0x11/0x20
[  343.579113]  ? ___ratelimit+0x3b4/0x672
[  343.583080]  ? trace_hardirqs_off_caller+0x310/0x310
[  343.588176]  ? trace_hardirqs_on+0x310/0x310
[  343.592672]  ? lock_downgrade+0x900/0x900
[  343.596822]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  343.601917]  ? ___ratelimit+0x3b9/0x672
[  343.605886]  ? idr_get_free+0xf70/0xf70
[  343.609856]  ? find_held_lock+0x36/0x1c0
[  343.613923]  oom_kill_process.cold.27+0x10/0x903
[  343.618696]  ? zap_class+0x640/0x640
[  343.622405]  ? check_preemption_disabled+0x48/0x280
[  343.627424]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  343.632355]  ? kasan_check_read+0x11/0x20
[  343.636500]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  343.641777]  ? oom_evaluate_task+0x540/0x540
[  343.646182]  ? find_held_lock+0x36/0x1c0
[  343.650266]  ? out_of_memory+0x974/0x1430
[  343.654411]  ? lock_downgrade+0x900/0x900
[  343.658553]  ? check_preemption_disabled+0x48/0x280
[  343.663568]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  343.668490]  ? kasan_check_read+0x11/0x20
[  343.672642]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  343.677912]  ? rcu_softirq_qs+0x20/0x20
[  343.681896]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  343.687426]  ? oom_evaluate_task+0x302/0x540
[  343.691851]  out_of_memory+0xa84/0x1430
[  343.695830]  ? oom_killer_disable+0x3a0/0x3a0
[  343.700322]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  343.705253]  ? __ww_mutex_check_waiters+0x160/0x160
[  343.710280]  __alloc_pages_slowpath+0x2354/0x2e10
[  343.715146]  ? warn_alloc+0x120/0x120
[  343.718975]  ? mark_held_locks+0x130/0x130
[  343.723224]  ? find_get_entry+0xaae/0x1120
[  343.727481]  ? filemap_map_pages+0x1a20/0x1a20
[  343.732061]  ? zap_class+0x640/0x640
[  343.735775]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.741314]  ? check_preemption_disabled+0x48/0x280
[  343.746326]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  343.751857]  ? should_fail+0x22d/0xd01
[  343.755744]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  343.760841]  ? zap_class+0x640/0x640
[  343.764590]  ? __lock_is_held+0xb5/0x140
[  343.768664]  ? mark_held_locks+0x130/0x130
[  343.772904]  ? lock_release+0xa00/0xa00
[  343.776879]  ? perf_trace_sched_process_exec+0x860/0x860
[  343.782340]  ? xa_load+0x2ba/0x460
[  343.785875]  ? lock_downgrade+0x900/0x900
[  343.790022]  ? __might_sleep+0x95/0x190
[  343.794028]  __alloc_pages_nodemask+0xa80/0xde0
[  343.798701]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  343.803721]  ? __page_cache_alloc+0x191/0x5c0
[  343.808211]  ? xa_load+0x2e1/0x460
[  343.811747]  ? xa_clear_mark+0x40/0x40
[  343.815638]  ? zap_class+0x640/0x640
[  343.819358]  ? zap_class+0x640/0x640
[  343.823068]  ? zap_class+0x640/0x640
[  343.826776]  ? __do_page_cache_readahead+0x663/0x810
[  343.831884]  ? find_held_lock+0x36/0x1c0
[  343.835946]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  343.841484]  alloc_pages_current+0x173/0x350
[  343.845894]  __page_cache_alloc+0x38c/0x5c0
[  343.850211]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  343.855134]  ? kasan_check_read+0x11/0x20
[  343.859279]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  343.864550]  ? generic_perform_write+0x6a0/0x6a0
[  343.869304]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  343.874838]  ? check_preemption_disabled+0x48/0x280
[  343.879857]  filemap_fault+0x1595/0x25f0
[  343.883924]  ? __lock_page_or_retry+0xa00/0xa00
[  343.888596]  ? mark_held_locks+0x130/0x130
[  343.892843]  ? filemap_map_pages+0xd6b/0x1a20
[  343.897349]  ? lock_downgrade+0x900/0x900
[  343.901491]  ? check_preemption_disabled+0x48/0x280
[  343.906513]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  343.911435]  ? kasan_check_read+0x11/0x20
[  343.915751]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  343.921025]  ? rcu_softirq_qs+0x20/0x20
[  343.925008]  ? filemap_map_pages+0xd92/0x1a20
[  343.929510]  ? find_get_entries_tag+0x1400/0x1400
[  343.934347]  ? find_held_lock+0x36/0x1c0
[  343.938425]  ? lock_acquire+0x1ed/0x520
[  343.942486]  ? ext4_filemap_fault+0x7a/0xad
[  343.946834]  ? lock_release+0xa00/0xa00
[  343.950819]  ? perf_trace_sched_process_exec+0x860/0x860
[  343.956282]  ? print_usage_bug+0xc0/0xc0
[  343.960354]  ? down_read+0x8d/0x120
[  343.963972]  ? ext4_filemap_fault+0x7a/0xad
[  343.968292]  ? __down_interruptible+0x700/0x700
[  343.972960]  ? find_held_lock+0x36/0x1c0
[  343.977023]  ext4_filemap_fault+0x82/0xad
[  343.981180]  __do_fault+0x100/0x6b0
[  343.984816]  ? lock_downgrade+0x900/0x900
[  343.988958]  ? pmd_devmap_trans_unstable+0x220/0x220
[  343.994077]  ? kasan_check_read+0x11/0x20
[  343.998216]  ? do_raw_spin_unlock+0xa7/0x330
[  344.002625]  ? do_raw_spin_trylock+0x270/0x270
[  344.007249]  __handle_mm_fault+0x3ea0/0x5be0
[  344.011649]  ? perf_trace_lock+0x7a0/0x7a0
[  344.015888]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  344.020737]  ? __switch_to_asm+0x34/0x70
[  344.024790]  ? __switch_to_asm+0x34/0x70
[  344.028861]  ? zap_class+0x640/0x640
[  344.032570]  ? zap_class+0x640/0x640
[  344.036302]  ? __x64_sys_futex+0x53e/0x6a0
[  344.040534]  ? find_held_lock+0x36/0x1c0
[  344.044609]  ? handle_mm_fault+0x42a/0xc70
[  344.048851]  ? lock_downgrade+0x900/0x900
[  344.052995]  ? check_preemption_disabled+0x48/0x280
[  344.058010]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  344.062937]  ? kasan_check_read+0x11/0x20
[  344.067078]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  344.072363]  ? rcu_softirq_qs+0x20/0x20
[  344.076349]  ? trace_hardirqs_off_caller+0x310/0x310
[  344.081446]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  344.087077]  ? check_preemption_disabled+0x48/0x280
[  344.092093]  handle_mm_fault+0x54f/0xc70
[  344.096152]  ? __handle_mm_fault+0x5be0/0x5be0
[  344.100734]  ? find_vma+0x34/0x190
[  344.104359]  __do_page_fault+0x5e8/0xe60
[  344.108411]  ? trace_hardirqs_off+0xb8/0x310
[  344.112867]  do_page_fault+0xf2/0x7e0
[  344.116666]  ? vmalloc_sync_all+0x30/0x30
[  344.120812]  ? error_entry+0x70/0xd0
[  344.124532]  ? trace_hardirqs_off_caller+0xbb/0x310
[  344.129543]  ? trace_hardirqs_on_caller+0xc0/0x310
[  344.134465]  ? syscall_return_slowpath+0x5e0/0x5e0
[  344.139390]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  344.144229]  ? trace_hardirqs_on_caller+0x310/0x310
[  344.149253]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  344.154708]  ? prepare_exit_to_usermode+0x291/0x3b0
[  344.159719]  ? page_fault+0x8/0x30
[  344.163258]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  344.168097]  ? page_fault+0x8/0x30
[  344.171634]  page_fault+0x1e/0x30
[  344.175087] RIP: 0033:0x404068
[  344.178298] Code: Bad RIP value.
[  344.181659] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  344.187014] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  344.194277] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  344.201542] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  344.208802] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  344.216067] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  344.223351] warn_alloc_show_mem: 1 callbacks suppressed
[  344.223361] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  344.223362] Mem-Info:
[  344.223391] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  344.223391]  active_file:13 inactive_file:13 isolated_file:0
[  344.223391]  unevictable:0 dirty:0 writeback:0 unstable:0
[  344.223391]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  344.223391]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  344.223391]  free:13747 free_pcp:348 free_cma:0
[  344.228732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  344.228739] Call Trace:
[  344.236097] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  344.238484]  <IRQ>
[  344.271614] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  344.281073]  dump_stack+0x244/0x39d
[  344.283628] lowmem_reserve[]: 0 2818 6321 6321
[  344.311469]  ? dump_stack_print_info.cold.1+0x20/0x20
[  344.313590] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  344.339715]  warn_alloc.cold.116+0xb7/0x1bd
[  344.343304] lowmem_reserve[]: 0 0 3503 3503
[  344.347875]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  344.353035] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  344.380523]  ? lock_downgrade+0x900/0x900
[  344.384830] lowmem_reserve[]: 0 0 0 0
[  344.389163]  ? trace_hardirqs_off+0xb8/0x310
[  344.393980] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  344.423126]  ? trace_hardirqs_off+0xb8/0x310
[  344.427238] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  344.431038]  __alloc_pages_slowpath+0x26e8/0x2e10
[  344.435410] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  344.448947]  ? warn_alloc+0x120/0x120
[  344.453308] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  344.468202]  ? print_usage_bug+0xc0/0xc0
[  344.473019] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  344.488171]  ? warn_alloc+0x120/0x120
[  344.491942] 4484 total pagecache pages
[  344.500765]  ? warn_alloc+0x120/0x120
[  344.504816] 0 pages in swap cache
[  344.513371]  ? print_usage_bug+0xc0/0xc0
[  344.517144] Swap cache stats: add 0, delete 0, find 0/0
[  344.521014]  ? print_usage_bug+0xc0/0xc0
[  344.524784] Free swap  = 0kB
[  344.528221]  ? __lock_acquire+0x62f/0x4c20
[  344.532247] Total swap = 0kB
[  344.532255] 1965979 pages RAM
[  344.537609]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  344.541640] 0 pages HighMem/MovableOnly
[  344.541647] 342854 pages reserved
[  344.544652]  ? should_fail+0x22d/0xd01
[  344.548852] 0 pages cma reserved
[  344.548917] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  344.551868]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  344.555016] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  344.560473]  ? __lock_acquire+0x62f/0x4c20
[  344.564413] syz-fuzzer cpuset=/ mems_allowed=0
[  344.567862]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  344.610729]  ? __lock_acquire+0x62f/0x4c20
[  344.614975]  ? should_fail+0x22d/0xd01
[  344.618859]  ? find_held_lock+0x36/0x1c0
[  344.622922]  ? mark_held_locks+0x130/0x130
[  344.627159]  ? mark_held_locks+0x130/0x130
[  344.631392]  ? zap_class+0x640/0x640
[  344.635108]  ? zap_class+0x640/0x640
[  344.638821]  ? print_usage_bug+0xc0/0xc0
[  344.642874]  ? do_raw_spin_unlock+0xa7/0x330
[  344.647283]  ? zap_class+0x640/0x640
[  344.650996]  ? print_usage_bug+0xc0/0xc0
[  344.655054]  ? wq_watchdog_touch+0x9c/0xfe
[  344.659288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.664823]  ? check_preemption_disabled+0x48/0x280
[  344.669846]  ? __lock_is_held+0xb5/0x140
[  344.673910]  __alloc_pages_nodemask+0xa80/0xde0
[  344.678584]  ? zap_class+0x640/0x640
[  344.682316]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  344.687339]  ? find_held_lock+0x36/0x1c0
[  344.691406]  ? ____cache_alloc_node+0x1c7/0x1e0
[  344.696086]  ? lock_downgrade+0x900/0x900
[  344.700244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.705782]  cache_grow_begin+0xa5/0x8c0
[  344.709864]  ? do_raw_spin_unlock+0xa7/0x330
[  344.714277]  fallback_alloc+0x204/0x2e0
[  344.718254]  ____cache_alloc_node+0x1c7/0x1e0
[  344.722755]  kmem_cache_alloc_node+0xe3/0x730
[  344.727249]  ? ipv6_get_ifaddr+0x42e/0x620
[  344.731491]  __alloc_skb+0x119/0x770
[  344.735202]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  344.740478]  ? netdev_alloc_frag+0x1f0/0x1f0
[  344.744883]  ? lock_downgrade+0x900/0x900
[  344.749039]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.754574]  ? refcount_sub_and_test_checked+0x203/0x310
[  344.760026]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  344.765472]  ? addrconf_rs_timer+0x690/0x690
[  344.769887]  ndisc_alloc_skb+0x144/0x340
[  344.773945]  ndisc_send_rs+0x331/0x6e0
[  344.777835]  addrconf_rs_timer+0x314/0x690
[  344.782073]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  344.786318]  call_timer_fn+0x272/0x920
[  344.790200]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  344.794433]  ? process_timeout+0x40/0x40
[  344.798498]  ? __run_timers+0x7da/0xc70
[  344.802467]  ? _raw_spin_unlock_irq+0x27/0x80
[  344.806957]  ? _raw_spin_unlock_irq+0x27/0x80
[  344.811443]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  344.815688]  ? lockdep_hardirqs_on+0x296/0x5b0
[  344.820270]  ? trace_hardirqs_on+0xbd/0x310
[  344.824590]  ? kasan_check_read+0x11/0x20
[  344.828731]  ? __run_timers+0x7da/0xc70
[  344.832702]  ? trace_hardirqs_off_caller+0x310/0x310
[  344.837809]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  344.842046]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  344.846274]  __run_timers+0x7e5/0xc70
[  344.850082]  ? timer_fixup_init+0x70/0x70
[  344.854231]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  344.859242]  ? zap_class+0x640/0x640
[  344.862954]  ? enqueue_hrtimer+0x1a5/0x560
[  344.867188]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  344.872379]  ? find_held_lock+0x36/0x1c0
[  344.876443]  ? zap_class+0x640/0x640
[  344.880156]  ? pvclock_read_flags+0x160/0x160
[  344.884649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.890198]  ? check_preemption_disabled+0x48/0x280
[  344.895230]  ? __lock_is_held+0xb5/0x140
[  344.899849]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.905385]  ? check_preemption_disabled+0x48/0x280
[  344.910405]  run_timer_softirq+0x52/0xb0
[  344.914486]  ? rcu_read_lock_sched_held+0x14f/0x180
[  344.919502]  __do_softirq+0x308/0xb7e
[  344.923312]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  344.927804]  ? lock_downgrade+0x900/0x900
[  344.931972]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  344.937085]  ? pvclock_read_flags+0x160/0x160
[  344.941580]  ? lapic_next_event+0x5a/0x90
[  344.945744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.951285]  ? kvm_clock_read+0x18/0x30
[  344.955256]  ? kvm_sched_clock_read+0x9/0x20
[  344.959774]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.965306]  ? check_preemption_disabled+0x48/0x280
[  344.970325]  irq_exit+0x17f/0x1c0
[  344.973780]  smp_apic_timer_interrupt+0x1cb/0x760
[  344.978617]  ? smp_reschedule_interrupt+0x109/0x650
[  344.983642]  ? smp_call_function_single_interrupt+0x650/0x650
[  344.989519]  ? interrupt_entry+0xb5/0xc0
[  344.993588]  ? trace_hardirqs_off_caller+0xbb/0x310
[  344.998607]  ? trace_hardirqs_off_caller+0xbb/0x310
[  345.003621]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.008462]  ? trace_hardirqs_on_caller+0x310/0x310
[  345.013477]  ? trace_hardirqs_on_caller+0x310/0x310
[  345.018487]  ? task_prio+0x50/0x50
[  345.022022]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.027556]  ? check_preemption_disabled+0x48/0x280
[  345.032572]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.037415]  apic_timer_interrupt+0xf/0x20
[  345.041638]  </IRQ>
[  345.043873] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  345.048803] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  345.068175] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  345.075982] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  345.083247] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  345.090510] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  345.097778] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  345.105058] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  345.112403]  skb_clone+0x1bb/0x500
[  345.115946]  ? finish_task_switch+0x2f4/0x910
[  345.120436]  ? skb_split+0x11e0/0x11e0
[  345.124321]  ? preempt_notifier_register+0x200/0x200
[  345.129415]  ? __switch_to_asm+0x34/0x70
[  345.133470]  ? __switch_to_asm+0x34/0x70
[  345.137528]  ? __switch_to_asm+0x40/0x70
[  345.141688]  ? __switch_to_asm+0x34/0x70
[  345.145743]  ? __switch_to_asm+0x40/0x70
[  345.149883]  ? __switch_to_asm+0x34/0x70
[  345.153940]  ? __switch_to_asm+0x40/0x70
[  345.157997]  ? __switch_to_asm+0x34/0x70
[  345.162225]  ? __switch_to_asm+0x34/0x70
[  345.166279]  ? __switch_to_asm+0x40/0x70
[  345.170335]  ? __switch_to_asm+0x34/0x70
[  345.174408]  bpf_clone_redirect+0xb9/0x490
[  345.178638]  ? __schedule+0x8d7/0x21d0
[  345.182534]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  345.187555]  ? __sched_text_start+0x8/0x8
[  345.191719]  ? retint_kernel+0x2d/0x2d
[  345.195612]  ? find_held_lock+0x36/0x1c0
[  345.199778]  ? lock_acquire+0x1ed/0x520
[  345.203839]  ? bpf_test_run+0x3cb/0x780
[  345.207814]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.213353]  ? check_preemption_disabled+0x48/0x280
[  345.218475]  ? kasan_check_read+0x11/0x20
[  345.222626]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  345.228001]  ? rcu_softirq_qs+0x20/0x20
[  345.231983]  ? preempt_schedule+0x4d/0x60
[  345.236130]  ? ___preempt_schedule+0x16/0x18
[  345.240580]  ? bpf_test_run+0x25d/0x780
[  345.244563]  ? netlink_diag_dump+0x2a0/0x2a0
[  345.248985]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  345.254521]  ? bpf_test_init.isra.10+0x70/0x100
[  345.259191]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  345.263962]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  345.268796]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  345.274324]  ? fput+0x130/0x1a0
[  345.277601]  ? __bpf_prog_get+0x9b/0x290
[  345.281659]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  345.286517]  ? bpf_prog_test_run+0x130/0x1a0
[  345.290927]  ? __x64_sys_bpf+0x3d8/0x520
[  345.294986]  ? bpf_prog_get+0x20/0x20
[  345.298806]  ? do_syscall_64+0x1b9/0x820
[  345.302861]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  345.308235]  ? syscall_return_slowpath+0x5e0/0x5e0
[  345.313156]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.317997]  ? trace_hardirqs_on_caller+0x310/0x310
[  345.323022]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  345.328036]  ? prepare_exit_to_usermode+0x291/0x3b0
[  345.333059]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.337908]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  345.343304] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  345.343370] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  345.350313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  345.350318] Call Trace:
[  345.350324]  <IRQ>
[  345.350340]  dump_stack+0x244/0x39d
[  345.350359]  ? dump_stack_print_info.cold.1+0x20/0x20
[  345.356932] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  345.366228]  warn_alloc.cold.116+0xb7/0x1bd
[  345.368781] syz-executor2 cpuset=syz2 mems_allowed=0
[  345.370933]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  345.404614]  ? lock_downgrade+0x900/0x900
[  345.408768]  ? trace_hardirqs_off+0xb8/0x310
[  345.413178]  ? trace_hardirqs_off+0xb8/0x310
[  345.417626]  __alloc_pages_slowpath+0x26e8/0x2e10
[  345.422517]  ? warn_alloc+0x120/0x120
[  345.426317]  ? print_usage_bug+0xc0/0xc0
[  345.430460]  ? warn_alloc+0x120/0x120
[  345.434268]  ? warn_alloc+0x120/0x120
[  345.438063]  ? print_usage_bug+0xc0/0xc0
[  345.442226]  ? print_usage_bug+0xc0/0xc0
[  345.446281]  ? __lock_acquire+0x62f/0x4c20
[  345.450520]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  345.456053]  ? should_fail+0x22d/0xd01
[  345.459937]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  345.465034]  ? __lock_acquire+0x62f/0x4c20
[  345.469273]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  345.474370]  ? __lock_acquire+0x62f/0x4c20
[  345.478686]  ? should_fail+0x22d/0xd01
[  345.482577]  ? mark_held_locks+0x130/0x130
[  345.486812]  ? mark_held_locks+0x130/0x130
[  345.491039]  ? zap_class+0x640/0x640
[  345.494755]  ? zap_class+0x640/0x640
[  345.498465]  ? print_usage_bug+0xc0/0xc0
[  345.502532]  ? wq_watchdog_touch+0x9c/0xfe
[  345.506768]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.512317]  ? check_preemption_disabled+0x48/0x280
[  345.517338]  ? __lock_is_held+0xb5/0x140
[  345.521401]  __alloc_pages_nodemask+0xa80/0xde0
[  345.526065]  ? zap_class+0x640/0x640
[  345.529778]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  345.534800]  ? find_held_lock+0x36/0x1c0
[  345.538872]  ? ____cache_alloc_node+0x1c7/0x1e0
[  345.543551]  ? lock_downgrade+0x900/0x900
[  345.547709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.553246]  cache_grow_begin+0xa5/0x8c0
[  345.557303]  ? do_raw_spin_unlock+0xa7/0x330
[  345.561828]  fallback_alloc+0x204/0x2e0
[  345.565804]  ____cache_alloc_node+0x1c7/0x1e0
[  345.570303]  kmem_cache_alloc_node+0xe3/0x730
[  345.574793]  ? ipv6_get_ifaddr+0x42e/0x620
[  345.579039]  __alloc_skb+0x119/0x770
[  345.582748]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  345.588108]  ? netdev_alloc_frag+0x1f0/0x1f0
[  345.592514]  ? lock_downgrade+0x900/0x900
[  345.596759]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.602289]  ? refcount_sub_and_test_checked+0x203/0x310
[  345.607847]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  345.613290]  ? addrconf_rs_timer+0x690/0x690
[  345.617702]  ndisc_alloc_skb+0x144/0x340
[  345.621759]  ndisc_send_rs+0x331/0x6e0
[  345.625649]  addrconf_rs_timer+0x314/0x690
[  345.629887]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  345.634214]  call_timer_fn+0x272/0x920
[  345.638097]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  345.642328]  ? process_timeout+0x40/0x40
[  345.646393]  ? mark_held_locks+0xc7/0x130
[  345.650561]  ? _raw_spin_unlock_irq+0x27/0x80
[  345.655051]  ? _raw_spin_unlock_irq+0x27/0x80
[  345.659540]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  345.663771]  ? lockdep_hardirqs_on+0x296/0x5b0
[  345.668354]  ? trace_hardirqs_on+0xbd/0x310
[  345.672672]  ? kasan_check_read+0x11/0x20
[  345.676833]  ? __run_timers+0x7da/0xc70
[  345.680807]  ? trace_hardirqs_off_caller+0x310/0x310
[  345.685915]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  345.690146]  __run_timers+0x7e5/0xc70
[  345.693954]  ? timer_fixup_init+0x70/0x70
[  345.698100]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  345.703110]  ? zap_class+0x640/0x640
[  345.706841]  ? print_usage_bug+0xc0/0xc0
[  345.710897]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  345.716087]  ? find_held_lock+0x36/0x1c0
[  345.720151]  ? zap_class+0x640/0x640
[  345.723865]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.729399]  ? check_preemption_disabled+0x48/0x280
[  345.734420]  ? __lock_is_held+0xb5/0x140
[  345.738485]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.744023]  ? check_preemption_disabled+0x48/0x280
[  345.749096]  run_timer_softirq+0x52/0xb0
[  345.753155]  ? rcu_read_lock_sched_held+0x14f/0x180
[  345.758180]  __do_softirq+0x308/0xb7e
[  345.761995]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  345.766509]  ? lock_downgrade+0x900/0x900
[  345.770663]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  345.775771]  ? pvclock_read_flags+0x160/0x160
[  345.780278]  ? lapic_next_event+0x5a/0x90
[  345.784425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.789974]  ? kvm_clock_read+0x18/0x30
[  345.793963]  ? kvm_sched_clock_read+0x9/0x20
[  345.798373]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  345.803910]  ? check_preemption_disabled+0x48/0x280
[  345.808930]  irq_exit+0x17f/0x1c0
[  345.812380]  smp_apic_timer_interrupt+0x1cb/0x760
[  345.817221]  ? smp_call_function_single_interrupt+0x650/0x650
[  345.823098]  ? interrupt_entry+0xb5/0xc0
[  345.827158]  ? trace_hardirqs_off_caller+0xbb/0x310
[  345.832170]  ? trace_hardirqs_off_caller+0xbb/0x310
[  345.837181]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.842018]  ? trace_hardirqs_on_caller+0x310/0x310
[  345.847032]  ? trace_hardirqs_on_caller+0x310/0x310
[  345.852042]  ? task_prio+0x50/0x50
[  345.855583]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.861117]  ? check_preemption_disabled+0x48/0x280
[  345.866219]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.871065]  apic_timer_interrupt+0xf/0x20
[  345.875288]  </IRQ>
[  345.877548] RIP: 0010:dump_stack+0x358/0x39d
[  345.881970] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  345.900865] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  345.908584] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  345.915851] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  345.923117] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  345.930383] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  345.937648] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  345.944929]  ? dump_stack+0x34f/0x39d
[  345.948738]  ? dump_stack_print_info.cold.1+0x20/0x20
[  345.953932]  ? mark_held_locks+0x130/0x130
[  345.958293]  ? mark_held_locks+0x130/0x130
[  345.962538]  dump_header+0x27b/0xf72
[  345.966279]  ? pagefault_out_of_memory+0x197/0x197
[  345.971214]  ? __lock_acquire+0x62f/0x4c20
[  345.975454]  ? percpu_ref_get_many+0x240/0x240
[  345.980040]  ? print_usage_bug+0xc0/0xc0
[  345.984103]  ? zap_class+0x640/0x640
[  345.987817]  ? print_usage_bug+0xc0/0xc0
[  345.991871]  ? print_usage_bug+0xc0/0xc0
[  345.995930]  ? zap_class+0x640/0x640
[  345.999655]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.005194]  ? find_held_lock+0x36/0x1c0
[  346.009262]  ? mark_held_locks+0xc7/0x130
[  346.013410]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  346.018514]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  346.023703]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  346.028287]  ? trace_hardirqs_on+0xbd/0x310
[  346.032604]  ? kasan_check_read+0x11/0x20
[  346.036753]  ? ___ratelimit+0x3b4/0x672
[  346.040728]  ? trace_hardirqs_off_caller+0x310/0x310
[  346.045830]  ? trace_hardirqs_on+0x310/0x310
[  346.050412]  ? lock_downgrade+0x900/0x900
[  346.054571]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  346.059669]  ? ___ratelimit+0x3b9/0x672
[  346.063639]  ? idr_get_free+0xf70/0xf70
[  346.067606]  ? find_held_lock+0x36/0x1c0
[  346.071679]  oom_kill_process.cold.27+0x10/0x903
[  346.076427]  ? zap_class+0x640/0x640
[  346.080142]  ? check_preemption_disabled+0x48/0x280
[  346.085156]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  346.090080]  ? kasan_check_read+0x11/0x20
[  346.094312]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.099593]  ? oom_evaluate_task+0x540/0x540
[  346.104004]  ? find_held_lock+0x36/0x1c0
[  346.108067]  ? out_of_memory+0x974/0x1430
[  346.112216]  ? lock_downgrade+0x900/0x900
[  346.116360]  ? check_preemption_disabled+0x48/0x280
[  346.121376]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  346.126302]  ? kasan_check_read+0x11/0x20
[  346.130451]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.135725]  ? rcu_softirq_qs+0x20/0x20
[  346.139702]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.145233]  ? oom_evaluate_task+0x302/0x540
[  346.149642]  out_of_memory+0xa84/0x1430
[  346.153621]  ? oom_killer_disable+0x3a0/0x3a0
[  346.158112]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  346.163039]  ? __ww_mutex_check_waiters+0x160/0x160
[  346.168061]  __alloc_pages_slowpath+0x2354/0x2e10
[  346.172928]  ? warn_alloc+0x120/0x120
[  346.176725]  ? mark_held_locks+0x130/0x130
[  346.180968]  ? find_get_entry+0xaae/0x1120
[  346.185208]  ? filemap_map_pages+0x1a20/0x1a20
[  346.189791]  ? zap_class+0x640/0x640
[  346.193508]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.199044]  ? check_preemption_disabled+0x48/0x280
[  346.204056]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.209591]  ? should_fail+0x22d/0xd01
[  346.213488]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  346.218588]  ? zap_class+0x640/0x640
[  346.222325]  ? __lock_is_held+0xb5/0x140
[  346.226390]  ? mark_held_locks+0x130/0x130
[  346.230623]  ? lock_release+0xa00/0xa00
[  346.234593]  ? perf_trace_sched_process_exec+0x860/0x860
[  346.240043]  ? xa_load+0x2ba/0x460
[  346.243582]  ? lock_downgrade+0x900/0x900
[  346.247737]  ? __might_sleep+0x95/0x190
[  346.251717]  __alloc_pages_nodemask+0xa80/0xde0
[  346.256390]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  346.261408]  ? __page_cache_alloc+0x191/0x5c0
[  346.265903]  ? xa_load+0x2e1/0x460
[  346.269446]  ? xa_clear_mark+0x40/0x40
[  346.273333]  ? zap_class+0x640/0x640
[  346.277048]  ? zap_class+0x640/0x640
[  346.280758]  ? zap_class+0x640/0x640
[  346.284485]  ? __do_page_cache_readahead+0x663/0x810
[  346.289589]  ? find_held_lock+0x36/0x1c0
[  346.293650]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  346.299187]  alloc_pages_current+0x173/0x350
[  346.303596]  __page_cache_alloc+0x38c/0x5c0
[  346.307913]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  346.312837]  ? kasan_check_read+0x11/0x20
[  346.316980]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.322253]  ? generic_perform_write+0x6a0/0x6a0
[  346.327004]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.332538]  ? check_preemption_disabled+0x48/0x280
[  346.337561]  filemap_fault+0x1595/0x25f0
[  346.341630]  ? __lock_page_or_retry+0xa00/0xa00
[  346.346303]  ? mark_held_locks+0x130/0x130
[  346.350543]  ? filemap_map_pages+0xd6b/0x1a20
[  346.355039]  ? lock_downgrade+0x900/0x900
[  346.359181]  ? check_preemption_disabled+0x48/0x280
[  346.364197]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  346.369119]  ? kasan_check_read+0x11/0x20
[  346.373261]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.378532]  ? rcu_softirq_qs+0x20/0x20
[  346.382515]  ? filemap_map_pages+0xd92/0x1a20
[  346.387017]  ? find_get_entries_tag+0x1400/0x1400
[  346.391855]  ? find_held_lock+0x36/0x1c0
[  346.395944]  ? lock_acquire+0x1ed/0x520
[  346.399915]  ? ext4_filemap_fault+0x7a/0xad
[  346.404237]  ? lock_release+0xa00/0xa00
[  346.408212]  ? perf_trace_sched_process_exec+0x860/0x860
[  346.413659]  ? print_usage_bug+0xc0/0xc0
[  346.417727]  ? down_read+0x8d/0x120
[  346.421347]  ? ext4_filemap_fault+0x7a/0xad
[  346.425666]  ? __down_interruptible+0x700/0x700
[  346.430333]  ? find_held_lock+0x36/0x1c0
[  346.434396]  ext4_filemap_fault+0x82/0xad
[  346.438550]  __do_fault+0x100/0x6b0
[  346.442176]  ? lock_downgrade+0x900/0x900
[  346.446330]  ? pmd_devmap_trans_unstable+0x220/0x220
[  346.451441]  ? kasan_check_read+0x11/0x20
[  346.455587]  ? do_raw_spin_unlock+0xa7/0x330
[  346.459990]  ? do_raw_spin_trylock+0x270/0x270
[  346.464582]  __handle_mm_fault+0x3ea0/0x5be0
[  346.468993]  ? perf_trace_lock+0x7a0/0x7a0
[  346.473234]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  346.478076]  ? __switch_to_asm+0x34/0x70
[  346.482142]  ? __switch_to_asm+0x34/0x70
[  346.486235]  ? zap_class+0x640/0x640
[  346.489943]  ? zap_class+0x640/0x640
[  346.493669]  ? __x64_sys_futex+0x53e/0x6a0
[  346.497904]  ? find_held_lock+0x36/0x1c0
[  346.501973]  ? handle_mm_fault+0x42a/0xc70
[  346.506203]  ? lock_downgrade+0x900/0x900
[  346.510347]  ? check_preemption_disabled+0x48/0x280
[  346.515373]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  346.520307]  ? kasan_check_read+0x11/0x20
[  346.524455]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.529735]  ? rcu_softirq_qs+0x20/0x20
[  346.533716]  ? trace_hardirqs_off_caller+0x310/0x310
[  346.538828]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.544370]  ? check_preemption_disabled+0x48/0x280
[  346.549393]  handle_mm_fault+0x54f/0xc70
[  346.553474]  ? __handle_mm_fault+0x5be0/0x5be0
[  346.558056]  ? find_vma+0x34/0x190
[  346.561602]  __do_page_fault+0x5e8/0xe60
[  346.565659]  ? trace_hardirqs_off+0xb8/0x310
[  346.570074]  do_page_fault+0xf2/0x7e0
[  346.573870]  ? vmalloc_sync_all+0x30/0x30
[  346.578030]  ? error_entry+0x70/0xd0
[  346.581740]  ? trace_hardirqs_off_caller+0xbb/0x310
[  346.586753]  ? trace_hardirqs_on_caller+0xc0/0x310
[  346.591682]  ? syscall_return_slowpath+0x5e0/0x5e0
[  346.596605]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  346.601441]  ? trace_hardirqs_on_caller+0x310/0x310
[  346.606543]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  346.611993]  ? prepare_exit_to_usermode+0x291/0x3b0
[  346.617007]  ? page_fault+0x8/0x30
[  346.620547]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  346.625385]  ? page_fault+0x8/0x30
[  346.628932]  page_fault+0x1e/0x30
[  346.632384] RIP: 0033:0x404068
[  346.635629] Code: Bad RIP value.
[  346.638986] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  346.644347] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  346.651613] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  346.658887] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  346.666150] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  346.673416] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  346.680709] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  346.680713] warn_alloc_show_mem: 1 callbacks suppressed
[  346.680719] Mem-Info:
[  346.688069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  346.693434] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  346.693434]  active_file:13 inactive_file:13 isolated_file:0
[  346.693434]  unevictable:0 dirty:0 writeback:0 unstable:0
[  346.693434]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  346.693434]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  346.693434]  free:13747 free_pcp:348 free_cma:0
[  346.695803] Call Trace:
[  346.705173] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  346.740531]  <IRQ>
[  346.743094] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  346.770944]  dump_stack+0x244/0x39d
[  346.773054] lowmem_reserve[]: 0 2818 6321 6321
[  346.799272]  ? dump_stack_print_info.cold.1+0x20/0x20
[  346.802865] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  346.807494]  warn_alloc.cold.116+0xb7/0x1bd
[  346.812641] lowmem_reserve[]: 0 0 3503 3503
[  346.840137]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  346.844432] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  346.848744]  ? lock_downgrade+0x900/0x900
[  346.853563] lowmem_reserve[]: 0 0 0 0
[  346.882781]  ? trace_hardirqs_off+0xb8/0x310
[  346.886895] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  346.890702]  ? trace_hardirqs_off+0xb8/0x310
[  346.895080] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  346.909007]  __alloc_pages_slowpath+0x26e8/0x2e10
[  346.913392] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  346.928319]  ? warn_alloc+0x120/0x120
[  346.933200] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  346.948356]  ? print_usage_bug+0xc0/0xc0
[  346.952137] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  346.960954]  ? warn_alloc+0x120/0x120
[  346.965086] 4484 total pagecache pages
[  346.973650]  ? warn_alloc+0x120/0x120
[  346.977438] 0 pages in swap cache
[  346.981308]  ? print_usage_bug+0xc0/0xc0
[  346.985081] Swap cache stats: add 0, delete 0, find 0/0
[  346.988518]  ? print_usage_bug+0xc0/0xc0
[  346.992549] Free swap  = 0kB
[  346.997899]  ? __lock_acquire+0x62f/0x4c20
[  347.002045] Total swap = 0kB
[  347.005057]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  347.009263] 1965979 pages RAM
[  347.012296]  ? should_fail+0x22d/0xd01
[  347.017802] 0 pages HighMem/MovableOnly
[  347.020895]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  347.024751] 342854 pages reserved
[  347.024758] 0 pages cma reserved
[  347.028714]  ? __lock_acquire+0x62f/0x4c20
[  347.033872] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  347.037243]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  347.037255]  ? __lock_acquire+0x62f/0x4c20
[  347.037269]  ? should_fail+0x22d/0xd01
[  347.040659] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  347.044831]  ? find_held_lock+0x36/0x1c0
[  347.051298] syz-fuzzer cpuset=/ mems_allowed=0
[  347.056396]  ? mark_held_locks+0x130/0x130
[  347.088027]  ? mark_held_locks+0x130/0x130
[  347.092257]  ? zap_class+0x640/0x640
[  347.095968]  ? zap_class+0x640/0x640
[  347.099701]  ? print_usage_bug+0xc0/0xc0
[  347.103755]  ? do_raw_spin_unlock+0xa7/0x330
[  347.108157]  ? zap_class+0x640/0x640
[  347.111866]  ? print_usage_bug+0xc0/0xc0
[  347.115939]  ? wq_watchdog_touch+0x9c/0xfe
[  347.120176]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.125726]  ? check_preemption_disabled+0x48/0x280
[  347.130748]  ? __lock_is_held+0xb5/0x140
[  347.134811]  __alloc_pages_nodemask+0xa80/0xde0
[  347.139484]  ? zap_class+0x640/0x640
[  347.143195]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  347.148214]  ? find_held_lock+0x36/0x1c0
[  347.152278]  ? ____cache_alloc_node+0x1c7/0x1e0
[  347.156942]  ? lock_downgrade+0x900/0x900
[  347.161100]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.166636]  cache_grow_begin+0xa5/0x8c0
[  347.170694]  ? do_raw_spin_unlock+0xa7/0x330
[  347.175101]  fallback_alloc+0x204/0x2e0
[  347.179096]  ____cache_alloc_node+0x1c7/0x1e0
[  347.183608]  kmem_cache_alloc_node+0xe3/0x730
[  347.188098]  ? ipv6_get_ifaddr+0x42e/0x620
[  347.192373]  __alloc_skb+0x119/0x770
[  347.196084]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  347.201449]  ? netdev_alloc_frag+0x1f0/0x1f0
[  347.205861]  ? lock_downgrade+0x900/0x900
[  347.210009]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.215539]  ? refcount_sub_and_test_checked+0x203/0x310
[  347.220988]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  347.226432]  ? addrconf_rs_timer+0x690/0x690
[  347.230846]  ndisc_alloc_skb+0x144/0x340
[  347.234925]  ndisc_send_rs+0x331/0x6e0
[  347.238827]  addrconf_rs_timer+0x314/0x690
[  347.243058]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  347.247295]  call_timer_fn+0x272/0x920
[  347.251175]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  347.255420]  ? process_timeout+0x40/0x40
[  347.259482]  ? __run_timers+0x7da/0xc70
[  347.263451]  ? _raw_spin_unlock_irq+0x27/0x80
[  347.267938]  ? _raw_spin_unlock_irq+0x27/0x80
[  347.272442]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  347.276673]  ? lockdep_hardirqs_on+0x296/0x5b0
[  347.281254]  ? trace_hardirqs_on+0xbd/0x310
[  347.285570]  ? kasan_check_read+0x11/0x20
[  347.289710]  ? __run_timers+0x7da/0xc70
[  347.293683]  ? trace_hardirqs_off_caller+0x310/0x310
[  347.298785]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  347.303022]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  347.307249]  __run_timers+0x7e5/0xc70
[  347.311055]  ? timer_fixup_init+0x70/0x70
[  347.315218]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  347.320233]  ? zap_class+0x640/0x640
[  347.323946]  ? enqueue_hrtimer+0x1a5/0x560
[  347.328179]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  347.333371]  ? find_held_lock+0x36/0x1c0
[  347.337430]  ? zap_class+0x640/0x640
[  347.341142]  ? pvclock_read_flags+0x160/0x160
[  347.345632]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.351164]  ? check_preemption_disabled+0x48/0x280
[  347.356183]  ? __lock_is_held+0xb5/0x140
[  347.360240]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.365771]  ? check_preemption_disabled+0x48/0x280
[  347.370785]  run_timer_softirq+0x52/0xb0
[  347.374843]  ? rcu_read_lock_sched_held+0x14f/0x180
[  347.379858]  __do_softirq+0x308/0xb7e
[  347.383660]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  347.388163]  ? lock_downgrade+0x900/0x900
[  347.392310]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  347.397421]  ? pvclock_read_flags+0x160/0x160
[  347.401911]  ? lapic_next_event+0x5a/0x90
[  347.406058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.411593]  ? kvm_clock_read+0x18/0x30
[  347.415563]  ? kvm_sched_clock_read+0x9/0x20
[  347.419966]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.425502]  ? check_preemption_disabled+0x48/0x280
[  347.430540]  irq_exit+0x17f/0x1c0
[  347.433988]  smp_apic_timer_interrupt+0x1cb/0x760
[  347.438827]  ? smp_reschedule_interrupt+0x109/0x650
[  347.443840]  ? smp_call_function_single_interrupt+0x650/0x650
[  347.449718]  ? interrupt_entry+0xb5/0xc0
[  347.453775]  ? trace_hardirqs_off_caller+0xbb/0x310
[  347.458791]  ? trace_hardirqs_off_caller+0xbb/0x310
[  347.463804]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  347.468647]  ? trace_hardirqs_on_caller+0x310/0x310
[  347.473660]  ? trace_hardirqs_on_caller+0x310/0x310
[  347.478670]  ? task_prio+0x50/0x50
[  347.482203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.487736]  ? check_preemption_disabled+0x48/0x280
[  347.492755]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  347.497599]  apic_timer_interrupt+0xf/0x20
[  347.501824]  </IRQ>
[  347.504072] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  347.508998] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  347.527893] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  347.535599] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  347.542858] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  347.550121] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  347.557385] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  347.564649] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  347.571948]  skb_clone+0x1bb/0x500
[  347.575485]  ? finish_task_switch+0x2f4/0x910
[  347.579987]  ? skb_split+0x11e0/0x11e0
[  347.583878]  ? preempt_notifier_register+0x200/0x200
[  347.588972]  ? __switch_to_asm+0x34/0x70
[  347.593027]  ? __switch_to_asm+0x34/0x70
[  347.597081]  ? __switch_to_asm+0x40/0x70
[  347.601151]  ? __switch_to_asm+0x34/0x70
[  347.605204]  ? __switch_to_asm+0x40/0x70
[  347.609259]  ? __switch_to_asm+0x34/0x70
[  347.613317]  ? __switch_to_asm+0x40/0x70
[  347.617408]  ? __switch_to_asm+0x34/0x70
[  347.621462]  ? __switch_to_asm+0x34/0x70
[  347.625513]  ? __switch_to_asm+0x40/0x70
[  347.629565]  ? __switch_to_asm+0x34/0x70
[  347.633628]  bpf_clone_redirect+0xb9/0x490
[  347.637860]  ? __schedule+0x8d7/0x21d0
[  347.641751]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  347.646761]  ? __sched_text_start+0x8/0x8
[  347.650903]  ? retint_kernel+0x2d/0x2d
[  347.654793]  ? find_held_lock+0x36/0x1c0
[  347.658855]  ? lock_acquire+0x1ed/0x520
[  347.662836]  ? bpf_test_run+0x3cb/0x780
[  347.666806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.672345]  ? check_preemption_disabled+0x48/0x280
[  347.677379]  ? kasan_check_read+0x11/0x20
[  347.681522]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  347.686793]  ? rcu_softirq_qs+0x20/0x20
[  347.690871]  ? preempt_schedule+0x4d/0x60
[  347.695016]  ? ___preempt_schedule+0x16/0x18
[  347.699458]  ? bpf_test_run+0x25d/0x780
[  347.703436]  ? netlink_diag_dump+0x2a0/0x2a0
[  347.707840]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  347.713462]  ? bpf_test_init.isra.10+0x70/0x100
[  347.718129]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  347.722890]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  347.727724]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  347.733258]  ? fput+0x130/0x1a0
[  347.736535]  ? __bpf_prog_get+0x9b/0x290
[  347.740596]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  347.745431]  ? bpf_prog_test_run+0x130/0x1a0
[  347.749837]  ? __x64_sys_bpf+0x3d8/0x520
[  347.753896]  ? bpf_prog_get+0x20/0x20
[  347.757708]  ? do_syscall_64+0x1b9/0x820
[  347.761762]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  347.767121]  ? syscall_return_slowpath+0x5e0/0x5e0
[  347.772064]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  347.776904]  ? trace_hardirqs_on_caller+0x310/0x310
[  347.781925]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  347.786954]  ? prepare_exit_to_usermode+0x291/0x3b0
[  347.791972]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  347.796815]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  347.802208] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  347.802285] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  347.809226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  347.809230] Call Trace:
[  347.809236]  <IRQ>
[  347.809250]  dump_stack+0x244/0x39d
[  347.809268]  ? dump_stack_print_info.cold.1+0x20/0x20
[  347.815872] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  347.825170]  warn_alloc.cold.116+0xb7/0x1bd
[  347.827717] syz-executor2 cpuset=syz2 mems_allowed=0
[  347.829852]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  347.863334]  ? lock_downgrade+0x900/0x900
[  347.867486]  ? trace_hardirqs_off+0xb8/0x310
[  347.871897]  ? trace_hardirqs_off+0xb8/0x310
[  347.876314]  __alloc_pages_slowpath+0x26e8/0x2e10
[  347.881203]  ? warn_alloc+0x120/0x120
[  347.884999]  ? print_usage_bug+0xc0/0xc0
[  347.889075]  ? warn_alloc+0x120/0x120
[  347.892872]  ? warn_alloc+0x120/0x120
[  347.896675]  ? print_usage_bug+0xc0/0xc0
[  347.900731]  ? print_usage_bug+0xc0/0xc0
[  347.904785]  ? __lock_acquire+0x62f/0x4c20
[  347.909019]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  347.914638]  ? should_fail+0x22d/0xd01
[  347.918532]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  347.923628]  ? __lock_acquire+0x62f/0x4c20
[  347.927863]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  347.932972]  ? __lock_acquire+0x62f/0x4c20
[  347.937198]  ? should_fail+0x22d/0xd01
[  347.941095]  ? find_held_lock+0x36/0x1c0
[  347.945160]  ? mark_held_locks+0x130/0x130
[  347.949397]  ? mark_held_locks+0x130/0x130
[  347.953726]  ? zap_class+0x640/0x640
[  347.957431]  ? zap_class+0x640/0x640
[  347.961143]  ? print_usage_bug+0xc0/0xc0
[  347.965197]  ? do_raw_spin_unlock+0xa7/0x330
[  347.969599]  ? zap_class+0x640/0x640
[  347.973328]  ? print_usage_bug+0xc0/0xc0
[  347.977384]  ? wq_watchdog_touch+0x9c/0xfe
[  347.981619]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.987149]  ? check_preemption_disabled+0x48/0x280
[  347.992172]  ? __lock_is_held+0xb5/0x140
[  347.996232]  __alloc_pages_nodemask+0xa80/0xde0
[  348.000905]  ? zap_class+0x640/0x640
[  348.004619]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  348.009639]  ? find_held_lock+0x36/0x1c0
[  348.013820]  ? ____cache_alloc_node+0x1c7/0x1e0
[  348.018483]  ? lock_downgrade+0x900/0x900
[  348.022644]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.028179]  cache_grow_begin+0xa5/0x8c0
[  348.032253]  ? do_raw_spin_unlock+0xa7/0x330
[  348.036669]  fallback_alloc+0x204/0x2e0
[  348.040648]  ____cache_alloc_node+0x1c7/0x1e0
[  348.045146]  kmem_cache_alloc_node+0xe3/0x730
[  348.049638]  ? ipv6_get_ifaddr+0x42e/0x620
[  348.053964]  __alloc_skb+0x119/0x770
[  348.057684]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  348.062960]  ? netdev_alloc_frag+0x1f0/0x1f0
[  348.067363]  ? lock_downgrade+0x900/0x900
[  348.071513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.077048]  ? refcount_sub_and_test_checked+0x203/0x310
[  348.082500]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  348.087959]  ? addrconf_rs_timer+0x690/0x690
[  348.092391]  ndisc_alloc_skb+0x144/0x340
[  348.096465]  ndisc_send_rs+0x331/0x6e0
[  348.100355]  addrconf_rs_timer+0x314/0x690
[  348.104611]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  348.108848]  call_timer_fn+0x272/0x920
[  348.112727]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  348.116958]  ? process_timeout+0x40/0x40
[  348.121021]  ? mark_held_locks+0xc7/0x130
[  348.125179]  ? _raw_spin_unlock_irq+0x27/0x80
[  348.129666]  ? _raw_spin_unlock_irq+0x27/0x80
[  348.134153]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  348.138385]  ? lockdep_hardirqs_on+0x296/0x5b0
[  348.142961]  ? trace_hardirqs_on+0xbd/0x310
[  348.147284]  ? kasan_check_read+0x11/0x20
[  348.151424]  ? __run_timers+0x7da/0xc70
[  348.155393]  ? trace_hardirqs_off_caller+0x310/0x310
[  348.160496]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  348.164744]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  348.169069]  __run_timers+0x7e5/0xc70
[  348.172884]  ? timer_fixup_init+0x70/0x70
[  348.177029]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  348.182165]  ? zap_class+0x640/0x640
[  348.185875]  ? print_usage_bug+0xc0/0xc0
[  348.189929]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  348.195117]  ? find_held_lock+0x36/0x1c0
[  348.199191]  ? zap_class+0x640/0x640
[  348.202919]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.208465]  ? check_preemption_disabled+0x48/0x280
[  348.213484]  ? __lock_is_held+0xb5/0x140
[  348.217542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.223174]  ? check_preemption_disabled+0x48/0x280
[  348.228190]  run_timer_softirq+0x52/0xb0
[  348.232245]  ? rcu_read_lock_sched_held+0x14f/0x180
[  348.237272]  __do_softirq+0x308/0xb7e
[  348.241074]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  348.245564]  ? lock_downgrade+0x900/0x900
[  348.249709]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  348.254813]  ? pvclock_read_flags+0x160/0x160
[  348.259323]  ? lapic_next_event+0x5a/0x90
[  348.263466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.269088]  ? kvm_clock_read+0x18/0x30
[  348.273059]  ? kvm_sched_clock_read+0x9/0x20
[  348.277464]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  348.282993]  ? check_preemption_disabled+0x48/0x280
[  348.288016]  irq_exit+0x17f/0x1c0
[  348.291474]  smp_apic_timer_interrupt+0x1cb/0x760
[  348.296330]  ? smp_call_function_single_interrupt+0x650/0x650
[  348.302207]  ? interrupt_entry+0xb5/0xc0
[  348.306269]  ? trace_hardirqs_off_caller+0xbb/0x310
[  348.311306]  ? trace_hardirqs_off_caller+0xbb/0x310
[  348.316327]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  348.321169]  ? trace_hardirqs_on_caller+0x310/0x310
[  348.326173]  ? trace_hardirqs_on_caller+0x310/0x310
[  348.331195]  ? task_prio+0x50/0x50
[  348.334731]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.340270]  ? check_preemption_disabled+0x48/0x280
[  348.345286]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  348.350129]  apic_timer_interrupt+0xf/0x20
[  348.354350]  </IRQ>
[  348.356581] RIP: 0010:dump_stack+0x358/0x39d
[  348.361003] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  348.379894] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  348.387607] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  348.394906] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  348.402165] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  348.409427] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  348.416700] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  348.423971]  ? dump_stack+0x34f/0x39d
[  348.427781]  ? dump_stack_print_info.cold.1+0x20/0x20
[  348.432988]  ? mark_held_locks+0x130/0x130
[  348.437215]  ? mark_held_locks+0x130/0x130
[  348.441458]  dump_header+0x27b/0xf72
[  348.445197]  ? pagefault_out_of_memory+0x197/0x197
[  348.450129]  ? __lock_acquire+0x62f/0x4c20
[  348.454375]  ? percpu_ref_get_many+0x240/0x240
[  348.458955]  ? print_usage_bug+0xc0/0xc0
[  348.463106]  ? zap_class+0x640/0x640
[  348.466818]  ? print_usage_bug+0xc0/0xc0
[  348.470878]  ? print_usage_bug+0xc0/0xc0
[  348.474939]  ? zap_class+0x640/0x640
[  348.478650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.484183]  ? find_held_lock+0x36/0x1c0
[  348.488261]  ? mark_held_locks+0xc7/0x130
[  348.492428]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  348.497524]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  348.502655]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  348.507233]  ? trace_hardirqs_on+0xbd/0x310
[  348.511572]  ? kasan_check_read+0x11/0x20
[  348.515720]  ? ___ratelimit+0x3b4/0x672
[  348.519707]  ? trace_hardirqs_off_caller+0x310/0x310
[  348.524812]  ? trace_hardirqs_on+0x310/0x310
[  348.529223]  ? lock_downgrade+0x900/0x900
[  348.533376]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  348.538470]  ? ___ratelimit+0x3b9/0x672
[  348.542438]  ? idr_get_free+0xf70/0xf70
[  348.546411]  ? find_held_lock+0x36/0x1c0
[  348.550475]  oom_kill_process.cold.27+0x10/0x903
[  348.555226]  ? zap_class+0x640/0x640
[  348.558944]  ? check_preemption_disabled+0x48/0x280
[  348.563956]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  348.568878]  ? kasan_check_read+0x11/0x20
[  348.573017]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  348.578290]  ? oom_evaluate_task+0x540/0x540
[  348.582698]  ? find_held_lock+0x36/0x1c0
[  348.586760]  ? out_of_memory+0x974/0x1430
[  348.590962]  ? lock_downgrade+0x900/0x900
[  348.595106]  ? check_preemption_disabled+0x48/0x280
[  348.600118]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  348.605041]  ? kasan_check_read+0x11/0x20
[  348.609211]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  348.614503]  ? rcu_softirq_qs+0x20/0x20
[  348.618478]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  348.624027]  ? oom_evaluate_task+0x302/0x540
[  348.628430]  out_of_memory+0xa84/0x1430
[  348.632426]  ? oom_killer_disable+0x3a0/0x3a0
[  348.637026]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  348.641954]  ? __ww_mutex_check_waiters+0x160/0x160
[  348.646979]  __alloc_pages_slowpath+0x2354/0x2e10
[  348.651854]  ? warn_alloc+0x120/0x120
[  348.655645]  ? mark_held_locks+0x130/0x130
[  348.659898]  ? find_get_entry+0xaae/0x1120
[  348.664139]  ? filemap_map_pages+0x1a20/0x1a20
[  348.668720]  ? zap_class+0x640/0x640
[  348.672469]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.678004]  ? check_preemption_disabled+0x48/0x280
[  348.683012]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  348.688542]  ? should_fail+0x22d/0xd01
[  348.692430]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  348.697615]  ? zap_class+0x640/0x640
[  348.701350]  ? __lock_is_held+0xb5/0x140
[  348.705414]  ? mark_held_locks+0x130/0x130
[  348.709649]  ? lock_release+0xa00/0xa00
[  348.713620]  ? perf_trace_sched_process_exec+0x860/0x860
[  348.719068]  ? xa_load+0x2ba/0x460
[  348.722606]  ? lock_downgrade+0x900/0x900
[  348.726754]  ? __might_sleep+0x95/0x190
[  348.730729]  __alloc_pages_nodemask+0xa80/0xde0
[  348.735401]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  348.740430]  ? __page_cache_alloc+0x191/0x5c0
[  348.744920]  ? xa_load+0x2e1/0x460
[  348.748462]  ? xa_clear_mark+0x40/0x40
[  348.752363]  ? zap_class+0x640/0x640
[  348.756086]  ? zap_class+0x640/0x640
[  348.759799]  ? zap_class+0x640/0x640
[  348.763508]  ? __do_page_cache_readahead+0x663/0x810
[  348.768613]  ? find_held_lock+0x36/0x1c0
[  348.772676]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  348.778215]  alloc_pages_current+0x173/0x350
[  348.782632]  __page_cache_alloc+0x38c/0x5c0
[  348.786950]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  348.791876]  ? kasan_check_read+0x11/0x20
[  348.796020]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  348.801301]  ? generic_perform_write+0x6a0/0x6a0
[  348.806052]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  348.811590]  ? check_preemption_disabled+0x48/0x280
[  348.816612]  filemap_fault+0x1595/0x25f0
[  348.820691]  ? __lock_page_or_retry+0xa00/0xa00
[  348.825359]  ? mark_held_locks+0x130/0x130
[  348.829596]  ? filemap_map_pages+0xd6b/0x1a20
[  348.834104]  ? lock_downgrade+0x900/0x900
[  348.838247]  ? check_preemption_disabled+0x48/0x280
[  348.843272]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  348.848194]  ? kasan_check_read+0x11/0x20
[  348.852347]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  348.857623]  ? rcu_softirq_qs+0x20/0x20
[  348.861691]  ? filemap_map_pages+0xd92/0x1a20
[  348.866193]  ? find_get_entries_tag+0x1400/0x1400
[  348.871037]  ? find_held_lock+0x36/0x1c0
[  348.875116]  ? lock_acquire+0x1ed/0x520
[  348.879085]  ? ext4_filemap_fault+0x7a/0xad
[  348.883407]  ? lock_release+0xa00/0xa00
[  348.887380]  ? perf_trace_sched_process_exec+0x860/0x860
[  348.892829]  ? print_usage_bug+0xc0/0xc0
[  348.897295]  ? down_read+0x8d/0x120
[  348.900922]  ? ext4_filemap_fault+0x7a/0xad
[  348.905246]  ? __down_interruptible+0x700/0x700
[  348.909918]  ? find_held_lock+0x36/0x1c0
[  348.913978]  ext4_filemap_fault+0x82/0xad
[  348.918130]  __do_fault+0x100/0x6b0
[  348.921763]  ? lock_downgrade+0x900/0x900
[  348.925908]  ? pmd_devmap_trans_unstable+0x220/0x220
[  348.931012]  ? kasan_check_read+0x11/0x20
[  348.935157]  ? do_raw_spin_unlock+0xa7/0x330
[  348.939559]  ? do_raw_spin_trylock+0x270/0x270
[  348.944151]  __handle_mm_fault+0x3ea0/0x5be0
[  348.948552]  ? perf_trace_lock+0x7a0/0x7a0
[  348.952793]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  348.957640]  ? __switch_to_asm+0x34/0x70
[  348.961693]  ? __switch_to_asm+0x34/0x70
[  348.965762]  ? zap_class+0x640/0x640
[  348.969468]  ? zap_class+0x640/0x640
[  348.973188]  ? __x64_sys_futex+0x53e/0x6a0
[  348.977439]  ? find_held_lock+0x36/0x1c0
[  348.981520]  ? handle_mm_fault+0x42a/0xc70
[  348.985752]  ? lock_downgrade+0x900/0x900
[  348.989897]  ? check_preemption_disabled+0x48/0x280
[  348.994917]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  348.999839]  ? kasan_check_read+0x11/0x20
[  349.003985]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  349.009276]  ? rcu_softirq_qs+0x20/0x20
[  349.013246]  ? trace_hardirqs_off_caller+0x310/0x310
[  349.018360]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  349.023895]  ? check_preemption_disabled+0x48/0x280
[  349.028915]  handle_mm_fault+0x54f/0xc70
[  349.032974]  ? __handle_mm_fault+0x5be0/0x5be0
[  349.037554]  ? find_vma+0x34/0x190
[  349.041095]  __do_page_fault+0x5e8/0xe60
[  349.045151]  ? trace_hardirqs_off+0xb8/0x310
[  349.049562]  do_page_fault+0xf2/0x7e0
[  349.053359]  ? vmalloc_sync_all+0x30/0x30
[  349.057522]  ? error_entry+0x70/0xd0
[  349.061233]  ? trace_hardirqs_off_caller+0xbb/0x310
[  349.066537]  ? trace_hardirqs_on_caller+0xc0/0x310
[  349.071462]  ? syscall_return_slowpath+0x5e0/0x5e0
[  349.076383]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  349.081311]  ? trace_hardirqs_on_caller+0x310/0x310
[  349.086321]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  349.091769]  ? prepare_exit_to_usermode+0x291/0x3b0
[  349.096778]  ? page_fault+0x8/0x30
[  349.100319]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  349.105163]  ? page_fault+0x8/0x30
[  349.108704]  page_fault+0x1e/0x30
[  349.112150] RIP: 0033:0x404068
[  349.115378] Code: Bad RIP value.
[  349.118735] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  349.124091] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  349.131353] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  349.138613] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  349.145877] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  349.153144] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  349.160467] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  349.160472] warn_alloc_show_mem: 1 callbacks suppressed
[  349.160478] Mem-Info:
[  349.167829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  349.173199] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  349.173199]  active_file:13 inactive_file:13 isolated_file:0
[  349.173199]  unevictable:0 dirty:0 writeback:0 unstable:0
[  349.173199]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  349.173199]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  349.173199]  free:13747 free_pcp:348 free_cma:0
[  349.175566] Call Trace:
[  349.184939] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  349.218042]  <IRQ>
[  349.220609] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  349.248443]  dump_stack+0x244/0x39d
[  349.250561] lowmem_reserve[]: 0 2818 6321 6321
[  349.276672]  ? dump_stack_print_info.cold.1+0x20/0x20
[  349.280265] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  349.284847]  warn_alloc.cold.116+0xb7/0x1bd
[  349.290001] lowmem_reserve[]: 0 0 3503 3503
[  349.317486]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  349.321778] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  349.326092]  ? lock_downgrade+0x900/0x900
[  349.330986] lowmem_reserve[]: 0 0 0 0
[  349.360127]  ? trace_hardirqs_off+0xb8/0x310
[  349.364244] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  349.368037]  ? trace_hardirqs_off+0xb8/0x310
[  349.372412] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  349.385929]  __alloc_pages_slowpath+0x26e8/0x2e10
[  349.390304] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  349.405314]  ? warn_alloc+0x120/0x120
[  349.410108] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  349.425260]  ? print_usage_bug+0xc0/0xc0
[  349.429035] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  349.437850]  ? warn_alloc+0x120/0x120
[  349.441883] 4484 total pagecache pages
[  349.450444]  ? warn_alloc+0x120/0x120
[  349.454228] 0 pages in swap cache
[  349.458094]  ? print_usage_bug+0xc0/0xc0
[  349.461889] Swap cache stats: add 0, delete 0, find 0/0
[  349.465329]  ? print_usage_bug+0xc0/0xc0
[  349.469363] Free swap  = 0kB
[  349.474711]  ? __lock_acquire+0x62f/0x4c20
[  349.478747] Total swap = 0kB
[  349.481758]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  349.485964] 1965979 pages RAM
[  349.489059]  ? should_fail+0x22d/0xd01
[  349.494567] 0 pages HighMem/MovableOnly
[  349.497660]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  349.501519] 342854 pages reserved
[  349.505478]  ? __lock_acquire+0x62f/0x4c20
[  349.510552] 0 pages cma reserved
[  349.513991]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  349.518251] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  349.521542]  ? __lock_acquire+0x62f/0x4c20
[  349.521557]  ? should_fail+0x22d/0xd01
[  349.526688] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  349.533108]  ? find_held_lock+0x36/0x1c0
[  349.537309] syz-fuzzer cpuset=/ mems_allowed=0
[  349.541204]  ? mark_held_locks+0x130/0x130
[  349.564230]  ? mark_held_locks+0x130/0x130
[  349.568460]  ? zap_class+0x640/0x640
[  349.572174]  ? zap_class+0x640/0x640
[  349.575903]  ? print_usage_bug+0xc0/0xc0
[  349.579964]  ? do_raw_spin_unlock+0xa7/0x330
[  349.584454]  ? zap_class+0x640/0x640
[  349.588168]  ? print_usage_bug+0xc0/0xc0
[  349.592224]  ? wq_watchdog_touch+0x9c/0xfe
[  349.596460]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.602006]  ? check_preemption_disabled+0x48/0x280
[  349.607024]  ? __lock_is_held+0xb5/0x140
[  349.611084]  __alloc_pages_nodemask+0xa80/0xde0
[  349.615749]  ? zap_class+0x640/0x640
[  349.619461]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  349.624485]  ? find_held_lock+0x36/0x1c0
[  349.628554]  ? ____cache_alloc_node+0x1c7/0x1e0
[  349.633221]  ? lock_downgrade+0x900/0x900
[  349.637398]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.642933]  cache_grow_begin+0xa5/0x8c0
[  349.646984]  ? do_raw_spin_unlock+0xa7/0x330
[  349.651390]  fallback_alloc+0x204/0x2e0
[  349.655380]  ____cache_alloc_node+0x1c7/0x1e0
[  349.659871]  kmem_cache_alloc_node+0xe3/0x730
[  349.664359]  ? ipv6_get_ifaddr+0x42e/0x620
[  349.668597]  __alloc_skb+0x119/0x770
[  349.672305]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  349.677581]  ? netdev_alloc_frag+0x1f0/0x1f0
[  349.682092]  ? lock_downgrade+0x900/0x900
[  349.686245]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.691780]  ? refcount_sub_and_test_checked+0x203/0x310
[  349.697233]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  349.702714]  ? addrconf_rs_timer+0x690/0x690
[  349.707132]  ndisc_alloc_skb+0x144/0x340
[  349.711197]  ndisc_send_rs+0x331/0x6e0
[  349.715087]  addrconf_rs_timer+0x314/0x690
[  349.719322]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  349.723565]  call_timer_fn+0x272/0x920
[  349.727447]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  349.731678]  ? process_timeout+0x40/0x40
[  349.735751]  ? __run_timers+0x7da/0xc70
[  349.739727]  ? _raw_spin_unlock_irq+0x27/0x80
[  349.744225]  ? _raw_spin_unlock_irq+0x27/0x80
[  349.748720]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  349.752950]  ? lockdep_hardirqs_on+0x296/0x5b0
[  349.757534]  ? trace_hardirqs_on+0xbd/0x310
[  349.761863]  ? kasan_check_read+0x11/0x20
[  349.766004]  ? __run_timers+0x7da/0xc70
[  349.769984]  ? trace_hardirqs_off_caller+0x310/0x310
[  349.775087]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  349.779343]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  349.783570]  __run_timers+0x7e5/0xc70
[  349.787378]  ? timer_fixup_init+0x70/0x70
[  349.791527]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  349.796550]  ? zap_class+0x640/0x640
[  349.800265]  ? enqueue_hrtimer+0x1a5/0x560
[  349.804496]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  349.809692]  ? find_held_lock+0x36/0x1c0
[  349.813757]  ? zap_class+0x640/0x640
[  349.817469]  ? pvclock_read_flags+0x160/0x160
[  349.821962]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.827496]  ? check_preemption_disabled+0x48/0x280
[  349.832518]  ? __lock_is_held+0xb5/0x140
[  349.836591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.842240]  ? check_preemption_disabled+0x48/0x280
[  349.847259]  run_timer_softirq+0x52/0xb0
[  349.851438]  ? rcu_read_lock_sched_held+0x14f/0x180
[  349.856450]  __do_softirq+0x308/0xb7e
[  349.860250]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  349.864743]  ? lock_downgrade+0x900/0x900
[  349.868893]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  349.873997]  ? pvclock_read_flags+0x160/0x160
[  349.878494]  ? lapic_next_event+0x5a/0x90
[  349.882639]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.888178]  ? kvm_clock_read+0x18/0x30
[  349.892153]  ? kvm_sched_clock_read+0x9/0x20
[  349.896556]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.902090]  ? check_preemption_disabled+0x48/0x280
[  349.907118]  irq_exit+0x17f/0x1c0
[  349.910589]  smp_apic_timer_interrupt+0x1cb/0x760
[  349.915442]  ? smp_reschedule_interrupt+0x109/0x650
[  349.920456]  ? smp_call_function_single_interrupt+0x650/0x650
[  349.926347]  ? interrupt_entry+0xb5/0xc0
[  349.930404]  ? trace_hardirqs_off_caller+0xbb/0x310
[  349.935416]  ? trace_hardirqs_off_caller+0xbb/0x310
[  349.940431]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  349.945274]  ? trace_hardirqs_on_caller+0x310/0x310
[  349.950282]  ? trace_hardirqs_on_caller+0x310/0x310
[  349.955291]  ? task_prio+0x50/0x50
[  349.958830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.964365]  ? check_preemption_disabled+0x48/0x280
[  349.969409]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  349.974254]  apic_timer_interrupt+0xf/0x20
[  349.978481]  </IRQ>
[  349.980714] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  349.985637] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  350.004703] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  350.012407] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  350.019668] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  350.026932] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  350.034194] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  350.041459] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  350.049018]  skb_clone+0x1bb/0x500
[  350.052555]  ? finish_task_switch+0x2f4/0x910
[  350.057045]  ? skb_split+0x11e0/0x11e0
[  350.060930]  ? preempt_notifier_register+0x200/0x200
[  350.066023]  ? __switch_to_asm+0x34/0x70
[  350.070084]  ? __switch_to_asm+0x34/0x70
[  350.074148]  ? __switch_to_asm+0x40/0x70
[  350.078207]  ? __switch_to_asm+0x34/0x70
[  350.082268]  ? __switch_to_asm+0x40/0x70
[  350.086318]  ? __switch_to_asm+0x34/0x70
[  350.090463]  ? __switch_to_asm+0x40/0x70
[  350.094516]  ? __switch_to_asm+0x34/0x70
[  350.098572]  ? __switch_to_asm+0x34/0x70
[  350.102630]  ? __switch_to_asm+0x40/0x70
[  350.106686]  ? __switch_to_asm+0x34/0x70
[  350.110744]  bpf_clone_redirect+0xb9/0x490
[  350.114971]  ? __schedule+0x8d7/0x21d0
[  350.118861]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  350.123884]  ? __sched_text_start+0x8/0x8
[  350.128026]  ? retint_kernel+0x2d/0x2d
[  350.131916]  ? find_held_lock+0x36/0x1c0
[  350.135992]  ? lock_acquire+0x1ed/0x520
[  350.139962]  ? bpf_test_run+0x3cb/0x780
[  350.143934]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.149564]  ? check_preemption_disabled+0x48/0x280
[  350.154583]  ? kasan_check_read+0x11/0x20
[  350.158726]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  350.163998]  ? rcu_softirq_qs+0x20/0x20
[  350.167969]  ? preempt_schedule+0x4d/0x60
[  350.172135]  ? ___preempt_schedule+0x16/0x18
[  350.176564]  ? bpf_test_run+0x25d/0x780
[  350.180542]  ? netlink_diag_dump+0x2a0/0x2a0
[  350.184959]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  350.190484]  ? bpf_test_init.isra.10+0x70/0x100
[  350.195160]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  350.199922]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  350.204761]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  350.210294]  ? fput+0x130/0x1a0
[  350.213569]  ? __bpf_prog_get+0x9b/0x290
[  350.217715]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  350.222551]  ? bpf_prog_test_run+0x130/0x1a0
[  350.226960]  ? __x64_sys_bpf+0x3d8/0x520
[  350.231017]  ? bpf_prog_get+0x20/0x20
[  350.234835]  ? do_syscall_64+0x1b9/0x820
[  350.238889]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  350.244247]  ? syscall_return_slowpath+0x5e0/0x5e0
[  350.249255]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  350.254093]  ? trace_hardirqs_on_caller+0x310/0x310
[  350.259123]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  350.264154]  ? prepare_exit_to_usermode+0x291/0x3b0
[  350.269186]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  350.274037]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  350.279445] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  350.279510] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  350.286452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  350.286459] Call Trace:
[  350.293132] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  350.302255]  <IRQ>
[  350.302276]  dump_stack+0x244/0x39d
[  350.304967] syz-executor2 cpuset=syz2 mems_allowed=0
[  350.315446]  ? dump_stack_print_info.cold.1+0x20/0x20
[  350.331507]  warn_alloc.cold.116+0xb7/0x1bd
[  350.335909]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  350.340752]  ? lock_downgrade+0x900/0x900
[  350.344900]  ? trace_hardirqs_off+0xb8/0x310
[  350.349307]  ? trace_hardirqs_off+0xb8/0x310
[  350.353718]  __alloc_pages_slowpath+0x26e8/0x2e10
[  350.358581]  ? warn_alloc+0x120/0x120
[  350.362374]  ? print_usage_bug+0xc0/0xc0
[  350.366427]  ? warn_alloc+0x120/0x120
[  350.370238]  ? warn_alloc+0x120/0x120
[  350.374037]  ? print_usage_bug+0xc0/0xc0
[  350.378101]  ? print_usage_bug+0xc0/0xc0
[  350.382165]  ? __lock_acquire+0x62f/0x4c20
[  350.386401]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  350.391934]  ? should_fail+0x22d/0xd01
[  350.395821]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  350.400920]  ? __lock_acquire+0x62f/0x4c20
[  350.405158]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  350.410256]  ? __lock_acquire+0x62f/0x4c20
[  350.414482]  ? should_fail+0x22d/0xd01
[  350.418387]  ? find_held_lock+0x36/0x1c0
[  350.422449]  ? mark_held_locks+0x130/0x130
[  350.426684]  ? mark_held_locks+0x130/0x130
[  350.430913]  ? zap_class+0x640/0x640
[  350.434720]  ? zap_class+0x640/0x640
[  350.438429]  ? print_usage_bug+0xc0/0xc0
[  350.442485]  ? do_raw_spin_unlock+0xa7/0x330
[  350.446903]  ? zap_class+0x640/0x640
[  350.450621]  ? print_usage_bug+0xc0/0xc0
[  350.454679]  ? wq_watchdog_touch+0x9c/0xfe
[  350.458914]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.464449]  ? check_preemption_disabled+0x48/0x280
[  350.469467]  ? __lock_is_held+0xb5/0x140
[  350.473527]  __alloc_pages_nodemask+0xa80/0xde0
[  350.478196]  ? zap_class+0x640/0x640
[  350.481996]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  350.487023]  ? find_held_lock+0x36/0x1c0
[  350.491098]  ? ____cache_alloc_node+0x1c7/0x1e0
[  350.495765]  ? lock_downgrade+0x900/0x900
[  350.499913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.505448]  cache_grow_begin+0xa5/0x8c0
[  350.509500]  ? do_raw_spin_unlock+0xa7/0x330
[  350.513908]  fallback_alloc+0x204/0x2e0
[  350.517884]  ____cache_alloc_node+0x1c7/0x1e0
[  350.522379]  kmem_cache_alloc_node+0xe3/0x730
[  350.526872]  ? ipv6_get_ifaddr+0x42e/0x620
[  350.531121]  __alloc_skb+0x119/0x770
[  350.534832]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  350.540119]  ? netdev_alloc_frag+0x1f0/0x1f0
[  350.544541]  ? lock_downgrade+0x900/0x900
[  350.548689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.554225]  ? refcount_sub_and_test_checked+0x203/0x310
[  350.559676]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  350.565139]  ? addrconf_rs_timer+0x690/0x690
[  350.569556]  ndisc_alloc_skb+0x144/0x340
[  350.573616]  ndisc_send_rs+0x331/0x6e0
[  350.577534]  addrconf_rs_timer+0x314/0x690
[  350.581767]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  350.586004]  call_timer_fn+0x272/0x920
[  350.589897]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  350.594129]  ? process_timeout+0x40/0x40
[  350.598196]  ? mark_held_locks+0xc7/0x130
[  350.602337]  ? _raw_spin_unlock_irq+0x27/0x80
[  350.606824]  ? _raw_spin_unlock_irq+0x27/0x80
[  350.611310]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  350.615543]  ? lockdep_hardirqs_on+0x296/0x5b0
[  350.620128]  ? trace_hardirqs_on+0xbd/0x310
[  350.624466]  ? kasan_check_read+0x11/0x20
[  350.628607]  ? __run_timers+0x7da/0xc70
[  350.632576]  ? trace_hardirqs_off_caller+0x310/0x310
[  350.637701]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  350.641934]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  350.646162]  __run_timers+0x7e5/0xc70
[  350.650000]  ? timer_fixup_init+0x70/0x70
[  350.654153]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  350.659170]  ? zap_class+0x640/0x640
[  350.662893]  ? print_usage_bug+0xc0/0xc0
[  350.666954]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  350.672149]  ? find_held_lock+0x36/0x1c0
[  350.676210]  ? zap_class+0x640/0x640
[  350.679923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.685470]  ? check_preemption_disabled+0x48/0x280
[  350.690499]  ? __lock_is_held+0xb5/0x140
[  350.694579]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.700114]  ? check_preemption_disabled+0x48/0x280
[  350.705138]  run_timer_softirq+0x52/0xb0
[  350.709200]  ? rcu_read_lock_sched_held+0x14f/0x180
[  350.714234]  __do_softirq+0x308/0xb7e
[  350.718032]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  350.722524]  ? lock_downgrade+0x900/0x900
[  350.726672]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  350.731780]  ? pvclock_read_flags+0x160/0x160
[  350.736271]  ? lapic_next_event+0x5a/0x90
[  350.740418]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.745954]  ? kvm_clock_read+0x18/0x30
[  350.749924]  ? kvm_sched_clock_read+0x9/0x20
[  350.754332]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  350.759863]  ? check_preemption_disabled+0x48/0x280
[  350.764884]  irq_exit+0x17f/0x1c0
[  350.768332]  smp_apic_timer_interrupt+0x1cb/0x760
[  350.773172]  ? smp_call_function_single_interrupt+0x650/0x650
[  350.779141]  ? interrupt_entry+0xb5/0xc0
[  350.783199]  ? trace_hardirqs_off_caller+0xbb/0x310
[  350.788215]  ? trace_hardirqs_off_caller+0xbb/0x310
[  350.793229]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  350.798076]  ? trace_hardirqs_on_caller+0x310/0x310
[  350.803097]  ? trace_hardirqs_on_caller+0x310/0x310
[  350.808124]  ? task_prio+0x50/0x50
[  350.811660]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.817195]  ? check_preemption_disabled+0x48/0x280
[  350.822212]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  350.827066]  apic_timer_interrupt+0xf/0x20
[  350.831287]  </IRQ>
[  350.833524] RIP: 0010:dump_stack+0x358/0x39d
[  350.837939] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  350.856833] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  350.864538] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  350.871800] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  350.879148] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  350.886409] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  350.893671] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  350.901451]  ? dump_stack+0x34f/0x39d
[  350.905267]  ? dump_stack_print_info.cold.1+0x20/0x20
[  350.910462]  ? mark_held_locks+0x130/0x130
[  350.914708]  ? mark_held_locks+0x130/0x130
[  350.918946]  dump_header+0x27b/0xf72
[  350.922669]  ? pagefault_out_of_memory+0x197/0x197
[  350.927600]  ? __lock_acquire+0x62f/0x4c20
[  350.931838]  ? percpu_ref_get_many+0x240/0x240
[  350.936416]  ? print_usage_bug+0xc0/0xc0
[  350.940477]  ? zap_class+0x640/0x640
[  350.944202]  ? print_usage_bug+0xc0/0xc0
[  350.948266]  ? print_usage_bug+0xc0/0xc0
[  350.952328]  ? zap_class+0x640/0x640
[  350.956058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.961612]  ? find_held_lock+0x36/0x1c0
[  350.965678]  ? mark_held_locks+0xc7/0x130
[  350.969820]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  350.974916]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  350.980019]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  350.984621]  ? trace_hardirqs_on+0xbd/0x310
[  350.988938]  ? kasan_check_read+0x11/0x20
[  350.993079]  ? ___ratelimit+0x3b4/0x672
[  350.997062]  ? trace_hardirqs_off_caller+0x310/0x310
[  351.002166]  ? trace_hardirqs_on+0x310/0x310
[  351.006588]  ? lock_downgrade+0x900/0x900
[  351.010734]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  351.015831]  ? ___ratelimit+0x3b9/0x672
[  351.019801]  ? idr_get_free+0xf70/0xf70
[  351.023773]  ? find_held_lock+0x36/0x1c0
[  351.027837]  oom_kill_process.cold.27+0x10/0x903
[  351.032588]  ? zap_class+0x640/0x640
[  351.036301]  ? check_preemption_disabled+0x48/0x280
[  351.041318]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  351.046241]  ? kasan_check_read+0x11/0x20
[  351.050383]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  351.055654]  ? oom_evaluate_task+0x540/0x540
[  351.060071]  ? find_held_lock+0x36/0x1c0
[  351.064486]  ? out_of_memory+0x974/0x1430
[  351.068627]  ? lock_downgrade+0x900/0x900
[  351.072769]  ? check_preemption_disabled+0x48/0x280
[  351.077781]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  351.082721]  ? kasan_check_read+0x11/0x20
[  351.086886]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  351.092186]  ? rcu_softirq_qs+0x20/0x20
[  351.096182]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  351.101728]  ? oom_evaluate_task+0x302/0x540
[  351.106139]  out_of_memory+0xa84/0x1430
[  351.110138]  ? oom_killer_disable+0x3a0/0x3a0
[  351.114628]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  351.119556]  ? __ww_mutex_check_waiters+0x160/0x160
[  351.124580]  __alloc_pages_slowpath+0x2354/0x2e10
[  351.129448]  ? warn_alloc+0x120/0x120
[  351.133246]  ? mark_held_locks+0x130/0x130
[  351.137484]  ? find_get_entry+0xaae/0x1120
[  351.141724]  ? filemap_map_pages+0x1a20/0x1a20
[  351.146305]  ? zap_class+0x640/0x640
[  351.150037]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  351.155571]  ? check_preemption_disabled+0x48/0x280
[  351.160584]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  351.166117]  ? should_fail+0x22d/0xd01
[  351.170001]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  351.175108]  ? zap_class+0x640/0x640
[  351.178841]  ? __lock_is_held+0xb5/0x140
[  351.182905]  ? mark_held_locks+0x130/0x130
[  351.187146]  ? lock_release+0xa00/0xa00
[  351.191117]  ? perf_trace_sched_process_exec+0x860/0x860
[  351.196563]  ? xa_load+0x2ba/0x460
[  351.200100]  ? lock_downgrade+0x900/0x900
[  351.204246]  ? __might_sleep+0x95/0x190
[  351.208222]  __alloc_pages_nodemask+0xa80/0xde0
[  351.212895]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  351.217908]  ? __page_cache_alloc+0x191/0x5c0
[  351.222400]  ? xa_load+0x2e1/0x460
[  351.225935]  ? xa_clear_mark+0x40/0x40
[  351.229816]  ? zap_class+0x640/0x640
[  351.233533]  ? zap_class+0x640/0x640
[  351.237242]  ? zap_class+0x640/0x640
[  351.240950]  ? __do_page_cache_readahead+0x663/0x810
[  351.246053]  ? find_held_lock+0x36/0x1c0
[  351.250137]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  351.255676]  alloc_pages_current+0x173/0x350
[  351.260091]  __page_cache_alloc+0x38c/0x5c0
[  351.264405]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  351.269332]  ? kasan_check_read+0x11/0x20
[  351.273477]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  351.278750]  ? generic_perform_write+0x6a0/0x6a0
[  351.283504]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  351.289042]  ? check_preemption_disabled+0x48/0x280
[  351.294066]  filemap_fault+0x1595/0x25f0
[  351.298145]  ? __lock_page_or_retry+0xa00/0xa00
[  351.302901]  ? mark_held_locks+0x130/0x130
[  351.307146]  ? filemap_map_pages+0xd6b/0x1a20
[  351.311638]  ? lock_downgrade+0x900/0x900
[  351.315782]  ? check_preemption_disabled+0x48/0x280
[  351.320799]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  351.325724]  ? kasan_check_read+0x11/0x20
[  351.329866]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  351.335138]  ? rcu_softirq_qs+0x20/0x20
[  351.339134]  ? filemap_map_pages+0xd92/0x1a20
[  351.343632]  ? find_get_entries_tag+0x1400/0x1400
[  351.348471]  ? find_held_lock+0x36/0x1c0
[  351.352548]  ? lock_acquire+0x1ed/0x520
[  351.356518]  ? ext4_filemap_fault+0x7a/0xad
[  351.360840]  ? lock_release+0xa00/0xa00
[  351.364811]  ? perf_trace_sched_process_exec+0x860/0x860
[  351.370258]  ? print_usage_bug+0xc0/0xc0
[  351.374329]  ? down_read+0x8d/0x120
[  351.377949]  ? ext4_filemap_fault+0x7a/0xad
[  351.382267]  ? __down_interruptible+0x700/0x700
[  351.386933]  ? find_held_lock+0x36/0x1c0
[  351.390991]  ext4_filemap_fault+0x82/0xad
[  351.395143]  __do_fault+0x100/0x6b0
[  351.398786]  ? lock_downgrade+0x900/0x900
[  351.402929]  ? pmd_devmap_trans_unstable+0x220/0x220
[  351.408048]  ? kasan_check_read+0x11/0x20
[  351.412198]  ? do_raw_spin_unlock+0xa7/0x330
[  351.416609]  ? do_raw_spin_trylock+0x270/0x270
[  351.421197]  __handle_mm_fault+0x3ea0/0x5be0
[  351.425593]  ? perf_trace_lock+0x7a0/0x7a0
[  351.429830]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  351.434675]  ? __switch_to_asm+0x34/0x70
[  351.438813]  ? __switch_to_asm+0x34/0x70
[  351.442884]  ? zap_class+0x640/0x640
[  351.446591]  ? zap_class+0x640/0x640
[  351.450301]  ? __x64_sys_futex+0x53e/0x6a0
[  351.454536]  ? find_held_lock+0x36/0x1c0
[  351.458602]  ? handle_mm_fault+0x42a/0xc70
[  351.462837]  ? lock_downgrade+0x900/0x900
[  351.466980]  ? check_preemption_disabled+0x48/0x280
[  351.472010]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  351.476934]  ? kasan_check_read+0x11/0x20
[  351.481119]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  351.486492]  ? rcu_softirq_qs+0x20/0x20
[  351.490460]  ? trace_hardirqs_off_caller+0x310/0x310
[  351.495557]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  351.501088]  ? check_preemption_disabled+0x48/0x280
[  351.506217]  handle_mm_fault+0x54f/0xc70
[  351.510275]  ? __handle_mm_fault+0x5be0/0x5be0
[  351.514857]  ? find_vma+0x34/0x190
[  351.518397]  __do_page_fault+0x5e8/0xe60
[  351.522456]  ? trace_hardirqs_off+0xb8/0x310
[  351.526867]  do_page_fault+0xf2/0x7e0
[  351.530663]  ? vmalloc_sync_all+0x30/0x30
[  351.534812]  ? error_entry+0x70/0xd0
[  351.538521]  ? trace_hardirqs_off_caller+0xbb/0x310
[  351.543534]  ? trace_hardirqs_on_caller+0xc0/0x310
[  351.548479]  ? syscall_return_slowpath+0x5e0/0x5e0
[  351.553400]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  351.558238]  ? trace_hardirqs_on_caller+0x310/0x310
[  351.563250]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  351.568702]  ? prepare_exit_to_usermode+0x291/0x3b0
[  351.573716]  ? page_fault+0x8/0x30
[  351.577258]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  351.582096]  ? page_fault+0x8/0x30
[  351.585630]  page_fault+0x1e/0x30
[  351.589076] RIP: 0033:0x404068
[  351.592282] Code: Bad RIP value.
[  351.595641] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  351.601013] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  351.608278] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  351.615546] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  351.622827] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  351.630174] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  351.637461] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  351.637465] warn_alloc_show_mem: 1 callbacks suppressed
[  351.637471] Mem-Info:
[  351.644819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  351.644826] Call Trace:
[  351.650195] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  351.650195]  active_file:13 inactive_file:13 isolated_file:0
[  351.650195]  unevictable:0 dirty:0 writeback:0 unstable:0
[  351.650195]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  351.650195]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  351.650195]  free:13747 free_pcp:348 free_cma:0
[  351.652591]  <IRQ>
[  351.661947] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  351.664520]  dump_stack+0x244/0x39d
[  351.697656] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  351.699798]  ? dump_stack_print_info.cold.1+0x20/0x20
[  351.727604] lowmem_reserve[]: 0 2818 6321 6321
[  351.731237]  warn_alloc.cold.116+0xb7/0x1bd
[  351.757306] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  351.762487]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  351.767044] lowmem_reserve[]: 0 0 3503 3503
[  351.771357]  ? lock_downgrade+0x900/0x900
[  351.798820] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  351.803669]  ? trace_hardirqs_off+0xb8/0x310
[  351.807950] lowmem_reserve[]: 0 0 0 0
[  351.812118]  ? trace_hardirqs_off+0xb8/0x310
[  351.841231] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  351.845634]  __alloc_pages_slowpath+0x26e8/0x2e10
[  351.849403] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  351.853827]  ? warn_alloc+0x120/0x120
[  351.867297] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  351.872132]  ? print_usage_bug+0xc0/0xc0
[  351.887027] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  351.890816]  ? warn_alloc+0x120/0x120
[  351.905973] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  351.910016]  ? warn_alloc+0x120/0x120
[  351.918827] 4484 total pagecache pages
[  351.922614]  ? print_usage_bug+0xc0/0xc0
[  351.931166] 0 pages in swap cache
[  351.934946]  ? kvm_clock_read+0x18/0x30
[  351.938825] Swap cache stats: add 0, delete 0, find 0/0
[  351.942870]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  351.946291] Free swap  = 0kB
[  351.950254]  ? print_usage_bug+0xc0/0xc0
[  351.955590] Total swap = 0kB
[  351.960598]  ? check_usage_forwards+0x3d0/0x3d0
[  351.963584] 1965979 pages RAM
[  351.967629]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  351.970618] 0 pages HighMem/MovableOnly
[  351.970625] 342854 pages reserved
[  351.975281]  ? should_fail+0x22d/0xd01
[  351.978354] 0 pages cma reserved
[  351.983875]  ? __bfs+0x321/0x780
[  351.987877] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  351.991253]  ? __lock_acquire+0x62f/0x4c20
[  351.991271]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  351.995255] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  351.998482]  ? __lock_acquire+0x62f/0x4c20
[  352.001817] syz-fuzzer cpuset=/ mems_allowed=0
[  352.008408]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  352.041786]  ? __lock_acquire+0x62f/0x4c20
[  352.046019]  ? should_fail+0x22d/0xd01
[  352.049914]  ? mark_held_locks+0x130/0x130
[  352.054148]  ? mark_held_locks+0x130/0x130
[  352.058382]  ? kasan_check_read+0x11/0x20
[  352.062528]  ? __lock_acquire+0x2aff/0x4c20
[  352.066850]  ? zap_class+0x640/0x640
[  352.070564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.076100]  ? check_preemption_disabled+0x48/0x280
[  352.081127]  ? __lock_is_held+0xb5/0x140
[  352.085189]  __alloc_pages_nodemask+0xa80/0xde0
[  352.089855]  ? zap_class+0x640/0x640
[  352.093570]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  352.098593]  ? find_held_lock+0x36/0x1c0
[  352.102656]  ? ____cache_alloc_node+0x1c7/0x1e0
[  352.107325]  ? lock_downgrade+0x900/0x900
[  352.111476]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.117015]  cache_grow_begin+0xa5/0x8c0
[  352.121071]  ? do_raw_spin_unlock+0xa7/0x330
[  352.125481]  fallback_alloc+0x204/0x2e0
[  352.129464]  ____cache_alloc_node+0x1c7/0x1e0
[  352.133967]  kmem_cache_alloc_node+0xe3/0x730
[  352.138458]  ? do_raw_spin_unlock+0xa7/0x330
[  352.142861]  ? do_raw_spin_trylock+0x270/0x270
[  352.147445]  __alloc_skb+0x119/0x770
[  352.151161]  ? netdev_alloc_frag+0x1f0/0x1f0
[  352.155564]  ? atomic_notifier_call_chain+0xc6/0x190
[  352.160666]  ? lock_downgrade+0x900/0x900
[  352.164811]  ? check_preemption_disabled+0x48/0x280
[  352.169825]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  352.174768]  ? kasan_check_read+0x11/0x20
[  352.178922]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  352.184203]  ? rcu_softirq_qs+0x20/0x20
[  352.188174]  ? kasan_check_read+0x11/0x20
[  352.192319]  ? do_raw_write_trylock+0x270/0x270
[  352.197072]  __neigh_notify+0x8c/0x160
[  352.200967]  ? neigh_connected_output+0x780/0x780
[  352.205812]  neigh_timer_handler+0x6cb/0xdf0
[  352.210214]  ? check_preemption_disabled+0x48/0x280
[  352.215231]  ? neigh_periodic_work+0xc60/0xc60
[  352.219920]  ? __lock_is_held+0xb5/0x140
[  352.223999]  call_timer_fn+0x272/0x920
[  352.227882]  ? neigh_periodic_work+0xc60/0xc60
[  352.232458]  ? process_timeout+0x40/0x40
[  352.236523]  ? __run_timers+0x7da/0xc70
[  352.240502]  ? _raw_spin_unlock_irq+0x27/0x80
[  352.244993]  ? _raw_spin_unlock_irq+0x27/0x80
[  352.249484]  ? neigh_periodic_work+0xc60/0xc60
[  352.254065]  ? lockdep_hardirqs_on+0x296/0x5b0
[  352.258645]  ? trace_hardirqs_on+0xbd/0x310
[  352.262965]  ? kasan_check_read+0x11/0x20
[  352.267115]  ? __run_timers+0x7da/0xc70
[  352.271088]  ? trace_hardirqs_off_caller+0x310/0x310
[  352.276217]  ? neigh_periodic_work+0xc60/0xc60
[  352.280791]  __run_timers+0x7e5/0xc70
[  352.284595]  ? timer_fixup_init+0x70/0x70
[  352.288741]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  352.293751]  ? zap_class+0x640/0x640
[  352.297465]  ? enqueue_hrtimer+0x1a5/0x560
[  352.301702]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  352.306915]  ? find_held_lock+0x36/0x1c0
[  352.310981]  ? zap_class+0x640/0x640
[  352.314693]  ? pvclock_read_flags+0x160/0x160
[  352.319186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.324735]  ? check_preemption_disabled+0x48/0x280
[  352.329758]  ? __lock_is_held+0xb5/0x140
[  352.333813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.339377]  ? check_preemption_disabled+0x48/0x280
[  352.344497]  run_timer_softirq+0x52/0xb0
[  352.348553]  ? rcu_read_lock_sched_held+0x14f/0x180
[  352.353564]  __do_softirq+0x308/0xb7e
[  352.357360]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  352.361849]  ? lock_downgrade+0x900/0x900
[  352.365998]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  352.371102]  ? pvclock_read_flags+0x160/0x160
[  352.375591]  ? lapic_next_event+0x5a/0x90
[  352.379738]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.385285]  ? kvm_clock_read+0x18/0x30
[  352.389340]  ? kvm_sched_clock_read+0x9/0x20
[  352.393757]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.399291]  ? check_preemption_disabled+0x48/0x280
[  352.404332]  irq_exit+0x17f/0x1c0
[  352.407784]  smp_apic_timer_interrupt+0x1cb/0x760
[  352.412622]  ? smp_reschedule_interrupt+0x109/0x650
[  352.417636]  ? smp_call_function_single_interrupt+0x650/0x650
[  352.423512]  ? interrupt_entry+0xb5/0xc0
[  352.427587]  ? trace_hardirqs_off_caller+0xbb/0x310
[  352.432606]  ? trace_hardirqs_off_caller+0xbb/0x310
[  352.437620]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  352.442465]  ? trace_hardirqs_on_caller+0x310/0x310
[  352.447492]  ? trace_hardirqs_on_caller+0x310/0x310
[  352.452516]  ? task_prio+0x50/0x50
[  352.456054]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.461587]  ? check_preemption_disabled+0x48/0x280
[  352.466602]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  352.471449]  apic_timer_interrupt+0xf/0x20
[  352.475674]  </IRQ>
[  352.477908] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  352.482849] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  352.501747] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  352.509462] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  352.516725] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  352.524004] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  352.531283] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  352.538546] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  352.545850]  skb_clone+0x1bb/0x500
[  352.549386]  ? finish_task_switch+0x2f4/0x910
[  352.553883]  ? skb_split+0x11e0/0x11e0
[  352.557775]  ? preempt_notifier_register+0x200/0x200
[  352.562870]  ? __switch_to_asm+0x34/0x70
[  352.566929]  ? __switch_to_asm+0x34/0x70
[  352.571001]  ? __switch_to_asm+0x40/0x70
[  352.575058]  ? __switch_to_asm+0x34/0x70
[  352.579110]  ? __switch_to_asm+0x40/0x70
[  352.583165]  ? __switch_to_asm+0x34/0x70
[  352.587218]  ? __switch_to_asm+0x40/0x70
[  352.591279]  ? __switch_to_asm+0x34/0x70
[  352.595331]  ? __switch_to_asm+0x34/0x70
[  352.599383]  ? __switch_to_asm+0x40/0x70
[  352.603446]  ? __switch_to_asm+0x34/0x70
[  352.607530]  bpf_clone_redirect+0xb9/0x490
[  352.611758]  ? __schedule+0x8d7/0x21d0
[  352.615648]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  352.620660]  ? __sched_text_start+0x8/0x8
[  352.624800]  ? retint_kernel+0x2d/0x2d
[  352.628690]  ? find_held_lock+0x36/0x1c0
[  352.632758]  ? lock_acquire+0x1ed/0x520
[  352.636730]  ? bpf_test_run+0x3cb/0x780
[  352.640789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.646325]  ? check_preemption_disabled+0x48/0x280
[  352.651352]  ? kasan_check_read+0x11/0x20
[  352.655493]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  352.660763]  ? rcu_softirq_qs+0x20/0x20
[  352.664747]  ? preempt_schedule+0x4d/0x60
[  352.668892]  ? ___preempt_schedule+0x16/0x18
[  352.673311]  ? bpf_test_run+0x25d/0x780
[  352.677310]  ? netlink_diag_dump+0x2a0/0x2a0
[  352.681715]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  352.687249]  ? bpf_test_init.isra.10+0x70/0x100
[  352.691926]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  352.696698]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  352.701533]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  352.707064]  ? fput+0x130/0x1a0
[  352.710341]  ? __bpf_prog_get+0x9b/0x290
[  352.714405]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  352.719241]  ? bpf_prog_test_run+0x130/0x1a0
[  352.723651]  ? __x64_sys_bpf+0x3d8/0x520
[  352.727707]  ? bpf_prog_get+0x20/0x20
[  352.731524]  ? do_syscall_64+0x1b9/0x820
[  352.735579]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  352.740940]  ? syscall_return_slowpath+0x5e0/0x5e0
[  352.745863]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  352.750706]  ? trace_hardirqs_on_caller+0x310/0x310
[  352.755717]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  352.760733]  ? prepare_exit_to_usermode+0x291/0x3b0
[  352.765756]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  352.770603]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  352.775982] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  352.776117] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  352.783081] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  352.783089] Call Trace:
[  352.793556] syz-executor2 cpuset=syz2 mems_allowed=0
[  352.802981]  <IRQ>
[  352.812774]  dump_stack+0x244/0x39d
[  352.816413]  ? dump_stack_print_info.cold.1+0x20/0x20
[  352.821614]  warn_alloc.cold.116+0xb7/0x1bd
[  352.825930]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  352.830881]  ? lock_downgrade+0x900/0x900
[  352.835041]  ? trace_hardirqs_off+0xb8/0x310
[  352.839459]  ? trace_hardirqs_off+0xb8/0x310
[  352.843872]  __alloc_pages_slowpath+0x26e8/0x2e10
[  352.848745]  ? warn_alloc+0x120/0x120
[  352.852554]  ? print_usage_bug+0xc0/0xc0
[  352.856613]  ? warn_alloc+0x120/0x120
[  352.860413]  ? warn_alloc+0x120/0x120
[  352.864221]  ? print_usage_bug+0xc0/0xc0
[  352.868295]  ? print_usage_bug+0xc0/0xc0
[  352.872363]  ? __lock_acquire+0x62f/0x4c20
[  352.876600]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  352.882131]  ? should_fail+0x22d/0xd01
[  352.886026]  ? __lock_acquire+0x62f/0x4c20
[  352.890263]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  352.895362]  ? __lock_acquire+0x62f/0x4c20
[  352.901080]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  352.906178]  ? __lock_acquire+0x62f/0x4c20
[  352.910408]  ? should_fail+0x22d/0xd01
[  352.914298]  ? mark_held_locks+0x130/0x130
[  352.918534]  ? mark_held_locks+0x130/0x130
[  352.922761]  ? zap_class+0x640/0x640
[  352.926477]  ? zap_class+0x640/0x640
[  352.930186]  ? print_usage_bug+0xc0/0xc0
[  352.934242]  ? print_usage_bug+0xc0/0xc0
[  352.938300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.943832]  ? check_preemption_disabled+0x48/0x280
[  352.948849]  ? __lock_is_held+0xb5/0x140
[  352.952920]  __alloc_pages_nodemask+0xa80/0xde0
[  352.957590]  ? zap_class+0x640/0x640
[  352.961309]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  352.966330]  ? find_held_lock+0x36/0x1c0
[  352.970395]  ? ____cache_alloc_node+0x1c7/0x1e0
[  352.975071]  ? lock_downgrade+0x900/0x900
[  352.979220]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  352.984857]  cache_grow_begin+0xa5/0x8c0
[  352.988923]  ? do_raw_spin_unlock+0xa7/0x330
[  352.993341]  fallback_alloc+0x204/0x2e0
[  352.997420]  ____cache_alloc_node+0x1c7/0x1e0
[  353.001928]  kmem_cache_alloc_node+0xe3/0x730
[  353.006421]  ? ipv6_get_ifaddr+0x42e/0x620
[  353.010664]  __alloc_skb+0x119/0x770
[  353.014373]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  353.019647]  ? netdev_alloc_frag+0x1f0/0x1f0
[  353.024061]  ? lock_downgrade+0x900/0x900
[  353.028210]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.033743]  ? refcount_sub_and_test_checked+0x203/0x310
[  353.040021]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  353.045468]  ? addrconf_rs_timer+0x690/0x690
[  353.049889]  ndisc_alloc_skb+0x144/0x340
[  353.053954]  ndisc_send_rs+0x331/0x6e0
[  353.057841]  addrconf_rs_timer+0x314/0x690
[  353.062078]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  353.066618]  call_timer_fn+0x272/0x920
[  353.070595]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  353.074820]  ? process_timeout+0x40/0x40
[  353.078900]  ? mark_held_locks+0xc7/0x130
[  353.083044]  ? _raw_spin_unlock_irq+0x27/0x80
[  353.087544]  ? _raw_spin_unlock_irq+0x27/0x80
[  353.092050]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  353.096279]  ? lockdep_hardirqs_on+0x296/0x5b0
[  353.100858]  ? trace_hardirqs_on+0xbd/0x310
[  353.105179]  ? kasan_check_read+0x11/0x20
[  353.109322]  ? __run_timers+0x7da/0xc70
[  353.113290]  ? trace_hardirqs_off_caller+0x310/0x310
[  353.118429]  ? tcp_compressed_ack_kick+0x220/0x220
[  353.123358]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  353.127683]  __run_timers+0x7e5/0xc70
[  353.131492]  ? timer_fixup_init+0x70/0x70
[  353.135636]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  353.140649]  ? zap_class+0x640/0x640
[  353.144358]  ? print_usage_bug+0xc0/0xc0
[  353.148412]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  353.153614]  ? find_held_lock+0x36/0x1c0
[  353.157675]  ? zap_class+0x640/0x640
[  353.161475]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.167007]  ? check_preemption_disabled+0x48/0x280
[  353.172031]  ? __lock_is_held+0xb5/0x140
[  353.176089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.181618]  ? check_preemption_disabled+0x48/0x280
[  353.186643]  run_timer_softirq+0x52/0xb0
[  353.190718]  ? rcu_read_lock_sched_held+0x14f/0x180
[  353.195745]  __do_softirq+0x308/0xb7e
[  353.199541]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  353.204028]  ? lock_downgrade+0x900/0x900
[  353.208178]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  353.213297]  ? pvclock_read_flags+0x160/0x160
[  353.217786]  ? lapic_next_event+0x5a/0x90
[  353.221933]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.227475]  ? kvm_clock_read+0x18/0x30
[  353.231446]  ? kvm_sched_clock_read+0x9/0x20
[  353.235848]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  353.241388]  ? check_preemption_disabled+0x48/0x280
[  353.246410]  irq_exit+0x17f/0x1c0
[  353.249947]  smp_apic_timer_interrupt+0x1cb/0x760
[  353.254784]  ? smp_call_function_single_interrupt+0x650/0x650
[  353.260670]  ? interrupt_entry+0xb5/0xc0
[  353.264893]  ? trace_hardirqs_off_caller+0xbb/0x310
[  353.269994]  ? trace_hardirqs_off_caller+0xbb/0x310
[  353.275021]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  353.279880]  ? trace_hardirqs_on_caller+0x310/0x310
[  353.284895]  ? trace_hardirqs_on_caller+0x310/0x310
[  353.289914]  ? task_prio+0x50/0x50
[  353.293448]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.298982]  ? check_preemption_disabled+0x48/0x280
[  353.304018]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  353.308870]  apic_timer_interrupt+0xf/0x20
[  353.313094]  </IRQ>
[  353.315328] RIP: 0010:dump_stack+0x358/0x39d
[  353.319737] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  353.338629] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  353.346329] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  353.353590] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  353.360862] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  353.368150] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  353.375421] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  353.382698]  ? dump_stack+0x34f/0x39d
[  353.386520]  ? dump_stack_print_info.cold.1+0x20/0x20
[  353.391727]  ? mark_held_locks+0x130/0x130
[  353.395959]  ? mark_held_locks+0x130/0x130
[  353.400196]  dump_header+0x27b/0xf72
[  353.403924]  ? pagefault_out_of_memory+0x197/0x197
[  353.408863]  ? __lock_acquire+0x62f/0x4c20
[  353.413101]  ? percpu_ref_get_many+0x240/0x240
[  353.417679]  ? print_usage_bug+0xc0/0xc0
[  353.421743]  ? zap_class+0x640/0x640
[  353.425451]  ? print_usage_bug+0xc0/0xc0
[  353.429504]  ? print_usage_bug+0xc0/0xc0
[  353.433581]  ? zap_class+0x640/0x640
[  353.437293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.442827]  ? find_held_lock+0x36/0x1c0
[  353.446903]  ? mark_held_locks+0xc7/0x130
[  353.451048]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  353.456145]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  353.461240]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  353.465820]  ? trace_hardirqs_on+0xbd/0x310
[  353.470146]  ? kasan_check_read+0x11/0x20
[  353.474324]  ? ___ratelimit+0x3b4/0x672
[  353.478294]  ? trace_hardirqs_off_caller+0x310/0x310
[  353.483391]  ? trace_hardirqs_on+0x310/0x310
[  353.487796]  ? lock_downgrade+0x900/0x900
[  353.491946]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  353.497043]  ? ___ratelimit+0x3b9/0x672
[  353.501015]  ? idr_get_free+0xf70/0xf70
[  353.504980]  ? find_held_lock+0x36/0x1c0
[  353.509046]  oom_kill_process.cold.27+0x10/0x903
[  353.513795]  ? zap_class+0x640/0x640
[  353.517504]  ? check_preemption_disabled+0x48/0x280
[  353.522523]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  353.527446]  ? kasan_check_read+0x11/0x20
[  353.531591]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  353.536865]  ? oom_evaluate_task+0x540/0x540
[  353.541277]  ? find_held_lock+0x36/0x1c0
[  353.545340]  ? out_of_memory+0x974/0x1430
[  353.549486]  ? lock_downgrade+0x900/0x900
[  353.553627]  ? check_preemption_disabled+0x48/0x280
[  353.558642]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  353.563567]  ? kasan_check_read+0x11/0x20
[  353.567729]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  353.572998]  ? rcu_softirq_qs+0x20/0x20
[  353.576976]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  353.582504]  ? oom_evaluate_task+0x302/0x540
[  353.586917]  out_of_memory+0xa84/0x1430
[  353.590978]  ? oom_killer_disable+0x3a0/0x3a0
[  353.595466]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  353.600397]  ? __ww_mutex_check_waiters+0x160/0x160
[  353.605422]  __alloc_pages_slowpath+0x2354/0x2e10
[  353.610303]  ? warn_alloc+0x120/0x120
[  353.614102]  ? mark_held_locks+0x130/0x130
[  353.618344]  ? find_get_entry+0xaae/0x1120
[  353.622592]  ? filemap_map_pages+0x1a20/0x1a20
[  353.627176]  ? zap_class+0x640/0x640
[  353.630896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  353.636434]  ? check_preemption_disabled+0x48/0x280
[  353.641444]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  353.646978]  ? should_fail+0x22d/0xd01
[  353.650869]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  353.655973]  ? zap_class+0x640/0x640
[  353.659718]  ? __lock_is_held+0xb5/0x140
[  353.663778]  ? mark_held_locks+0x130/0x130
[  353.668007]  ? lock_release+0xa00/0xa00
[  353.671983]  ? perf_trace_sched_process_exec+0x860/0x860
[  353.677448]  ? xa_load+0x2ba/0x460
[  353.680984]  ? lock_downgrade+0x900/0x900
[  353.685139]  ? __might_sleep+0x95/0x190
[  353.689115]  __alloc_pages_nodemask+0xa80/0xde0
[  353.693787]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  353.698809]  ? __page_cache_alloc+0x191/0x5c0
[  353.703300]  ? xa_load+0x2e1/0x460
[  353.706848]  ? xa_clear_mark+0x40/0x40
[  353.710734]  ? zap_class+0x640/0x640
[  353.714450]  ? zap_class+0x640/0x640
[  353.718156]  ? zap_class+0x640/0x640
[  353.721863]  ? __do_page_cache_readahead+0x663/0x810
[  353.726972]  ? find_held_lock+0x36/0x1c0
[  353.731037]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  353.736577]  alloc_pages_current+0x173/0x350
[  353.740984]  __page_cache_alloc+0x38c/0x5c0
[  353.745302]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  353.750234]  ? kasan_check_read+0x11/0x20
[  353.754378]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  353.759654]  ? generic_perform_write+0x6a0/0x6a0
[  353.764428]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  353.769963]  ? check_preemption_disabled+0x48/0x280
[  353.774979]  filemap_fault+0x1595/0x25f0
[  353.779056]  ? __lock_page_or_retry+0xa00/0xa00
[  353.783754]  ? mark_held_locks+0x130/0x130
[  353.787991]  ? filemap_map_pages+0xd6b/0x1a20
[  353.792483]  ? lock_downgrade+0x900/0x900
[  353.796629]  ? check_preemption_disabled+0x48/0x280
[  353.801639]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  353.806560]  ? kasan_check_read+0x11/0x20
[  353.810713]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  353.815983]  ? rcu_softirq_qs+0x20/0x20
[  353.820065]  ? filemap_map_pages+0xd92/0x1a20
[  353.824566]  ? find_get_entries_tag+0x1400/0x1400
[  353.829404]  ? find_held_lock+0x36/0x1c0
[  353.833478]  ? lock_acquire+0x1ed/0x520
[  353.837446]  ? ext4_filemap_fault+0x7a/0xad
[  353.841771]  ? lock_release+0xa00/0xa00
[  353.845742]  ? perf_trace_sched_process_exec+0x860/0x860
[  353.851188]  ? print_usage_bug+0xc0/0xc0
[  353.855273]  ? down_read+0x8d/0x120
[  353.858891]  ? ext4_filemap_fault+0x7a/0xad
[  353.863211]  ? __down_interruptible+0x700/0x700
[  353.867884]  ? find_held_lock+0x36/0x1c0
[  353.871945]  ext4_filemap_fault+0x82/0xad
[  353.876108]  __do_fault+0x100/0x6b0
[  353.879733]  ? lock_downgrade+0x900/0x900
[  353.883878]  ? pmd_devmap_trans_unstable+0x220/0x220
[  353.888984]  ? kasan_check_read+0x11/0x20
[  353.893129]  ? do_raw_spin_unlock+0xa7/0x330
[  353.897984]  ? do_raw_spin_trylock+0x270/0x270
[  353.902712]  __handle_mm_fault+0x3ea0/0x5be0
[  353.907118]  ? perf_trace_lock+0x7a0/0x7a0
[  353.911356]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  353.916196]  ? __switch_to_asm+0x34/0x70
[  353.920248]  ? __switch_to_asm+0x34/0x70
[  353.924316]  ? zap_class+0x640/0x640
[  353.928038]  ? zap_class+0x640/0x640
[  353.931762]  ? __x64_sys_futex+0x53e/0x6a0
[  353.936020]  ? find_held_lock+0x36/0x1c0
[  353.940084]  ? handle_mm_fault+0x42a/0xc70
[  353.944331]  ? lock_downgrade+0x900/0x900
[  353.948471]  ? check_preemption_disabled+0x48/0x280
[  353.953485]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  353.958450]  ? kasan_check_read+0x11/0x20
[  353.962589]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  353.967864]  ? rcu_softirq_qs+0x20/0x20
[  353.971833]  ? trace_hardirqs_off_caller+0x310/0x310
[  353.976943]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  353.982477]  ? check_preemption_disabled+0x48/0x280
[  353.987493]  handle_mm_fault+0x54f/0xc70
[  353.991552]  ? __handle_mm_fault+0x5be0/0x5be0
[  353.996134]  ? find_vma+0x34/0x190
[  353.999671]  __do_page_fault+0x5e8/0xe60
[  354.003745]  ? trace_hardirqs_off+0xb8/0x310
[  354.008159]  do_page_fault+0xf2/0x7e0
[  354.011960]  ? vmalloc_sync_all+0x30/0x30
[  354.016099]  ? error_entry+0x70/0xd0
[  354.019814]  ? trace_hardirqs_off_caller+0xbb/0x310
[  354.024831]  ? trace_hardirqs_on_caller+0xc0/0x310
[  354.029755]  ? syscall_return_slowpath+0x5e0/0x5e0
[  354.034680]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  354.039531]  ? trace_hardirqs_on_caller+0x310/0x310
[  354.044541]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  354.050006]  ? prepare_exit_to_usermode+0x291/0x3b0
[  354.055015]  ? page_fault+0x8/0x30
[  354.058553]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  354.063403]  ? page_fault+0x8/0x30
[  354.066948]  page_fault+0x1e/0x30
[  354.070391] RIP: 0033:0x404068
[  354.073690] Code: Bad RIP value.
[  354.077048] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  354.082401] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  354.089666] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  354.096929] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  354.104191] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  354.111457] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  354.118738] warn_alloc_show_mem: 1 callbacks suppressed
[  354.118748] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  354.118750] Mem-Info:
[  354.118781] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  354.118781]  active_file:13 inactive_file:13 isolated_file:0
[  354.118781]  unevictable:0 dirty:0 writeback:0 unstable:0
[  354.118781]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  354.118781]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  354.118781]  free:13747 free_pcp:348 free_cma:0
[  354.124123] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  354.124130] Call Trace:
[  354.131488] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  354.133876]  <IRQ>
[  354.167032] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  354.176381]  dump_stack+0x244/0x39d
[  354.178933] lowmem_reserve[]: 0 2818 6321 6321
[  354.206769]  ? dump_stack_print_info.cold.1+0x20/0x20
[  354.208894] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  354.235003]  warn_alloc.cold.116+0xb7/0x1bd
[  354.238586] lowmem_reserve[]: 0 0 3503 3503
[  354.243162]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  354.248322] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  354.275815]  ? lock_downgrade+0x900/0x900
[  354.280106] lowmem_reserve[]: 0 0 0 0
[  354.284419]  ? trace_hardirqs_off+0xb8/0x310
[  354.289229] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  354.318370]  ? trace_hardirqs_off+0xb8/0x310
[  354.322484] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  354.326281]  __alloc_pages_slowpath+0x26e8/0x2e10
[  354.330666] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  354.344201]  ? warn_alloc+0x120/0x120
[  354.348564] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  354.363544]  ? warn_alloc+0x120/0x120
[  354.368360] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  354.383514]  ? warn_alloc+0x120/0x120
[  354.387286] 4484 total pagecache pages
[  354.396109]  ? print_usage_bug+0xc0/0xc0
[  354.399886] 0 pages in swap cache
[  354.408442]  ? enqueue_hrtimer+0x1a5/0x560
[  354.412219] Swap cache stats: add 0, delete 0, find 0/0
[  354.416089]  ? print_usage_bug+0xc0/0xc0
[  354.420120] Free swap  = 0kB
[  354.423560]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  354.427771] Total swap = 0kB
[  354.433125]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  354.437151] 1965979 pages RAM
[  354.440247]  ? should_fail+0x22d/0xd01
[  354.445406] 0 pages HighMem/MovableOnly
[  354.448413]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  354.453917] 342854 pages reserved
[  354.457009]  ? __lock_acquire+0x62f/0x4c20
[  354.460866] 0 pages cma reserved
[  354.464831]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  354.469970] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  354.473345]  ? __lock_acquire+0x62f/0x4c20
[  354.473360]  ? should_fail+0x22d/0xd01
[  354.477646] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  354.480929]  ? mark_held_locks+0x130/0x130
[  354.486003] syz-fuzzer cpuset=/ mems_allowed=0
[  354.492483]  ? mark_held_locks+0x130/0x130
[  354.523788]  ? zap_class+0x640/0x640
[  354.527496]  ? print_usage_bug+0xc0/0xc0
[  354.531556]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.537092]  ? check_preemption_disabled+0x48/0x280
[  354.542111]  ? __lock_is_held+0xb5/0x140
[  354.546175]  __alloc_pages_nodemask+0xa80/0xde0
[  354.550845]  ? zap_class+0x640/0x640
[  354.554559]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  354.559585]  ? find_held_lock+0x36/0x1c0
[  354.563650]  ? ____cache_alloc_node+0x1c7/0x1e0
[  354.568323]  ? lock_downgrade+0x900/0x900
[  354.572473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.578010]  cache_grow_begin+0xa5/0x8c0
[  354.582065]  ? do_raw_spin_unlock+0xa7/0x330
[  354.586478]  fallback_alloc+0x204/0x2e0
[  354.590450]  ____cache_alloc_node+0x1c7/0x1e0
[  354.594976]  kmem_cache_alloc_node+0xe3/0x730
[  354.599468]  ? ipv6_get_ifaddr+0x42e/0x620
[  354.603728]  __alloc_skb+0x119/0x770
[  354.607439]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  354.612723]  ? netdev_alloc_frag+0x1f0/0x1f0
[  354.617130]  ? lock_downgrade+0x900/0x900
[  354.621281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.626825]  ? refcount_sub_and_test_checked+0x203/0x310
[  354.632276]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  354.637728]  ? addrconf_rs_timer+0x690/0x690
[  354.642148]  ndisc_alloc_skb+0x144/0x340
[  354.646207]  ndisc_send_rs+0x331/0x6e0
[  354.650094]  addrconf_rs_timer+0x314/0x690
[  354.654334]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  354.658574]  call_timer_fn+0x272/0x920
[  354.662457]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  354.666689]  ? process_timeout+0x40/0x40
[  354.670764]  ? __run_timers+0x7da/0xc70
[  354.674759]  ? _raw_spin_unlock_irq+0x27/0x80
[  354.679250]  ? _raw_spin_unlock_irq+0x27/0x80
[  354.683764]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  354.688001]  ? lockdep_hardirqs_on+0x296/0x5b0
[  354.692578]  ? trace_hardirqs_on+0xbd/0x310
[  354.696893]  ? kasan_check_read+0x11/0x20
[  354.701034]  ? __run_timers+0x7da/0xc70
[  354.705007]  ? trace_hardirqs_off_caller+0x310/0x310
[  354.710118]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  354.714347]  __run_timers+0x7e5/0xc70
[  354.718151]  ? timer_fixup_init+0x70/0x70
[  354.722301]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  354.727321]  ? zap_class+0x640/0x640
[  354.731034]  ? enqueue_hrtimer+0x1a5/0x560
[  354.735265]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  354.740457]  ? find_held_lock+0x36/0x1c0
[  354.744537]  ? zap_class+0x640/0x640
[  354.748251]  ? pvclock_read_flags+0x160/0x160
[  354.752752]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.758287]  ? check_preemption_disabled+0x48/0x280
[  354.763494]  ? __lock_is_held+0xb5/0x140
[  354.767553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.773085]  ? check_preemption_disabled+0x48/0x280
[  354.778100]  run_timer_softirq+0x52/0xb0
[  354.782160]  ? rcu_read_lock_sched_held+0x14f/0x180
[  354.787220]  __do_softirq+0x308/0xb7e
[  354.791106]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  354.795595]  ? lock_downgrade+0x900/0x900
[  354.799754]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  354.804860]  ? pvclock_read_flags+0x160/0x160
[  354.809355]  ? lapic_next_event+0x5a/0x90
[  354.813522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.819057]  ? kvm_clock_read+0x18/0x30
[  354.823052]  ? kvm_sched_clock_read+0x9/0x20
[  354.827462]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.832994]  ? check_preemption_disabled+0x48/0x280
[  354.838112]  irq_exit+0x17f/0x1c0
[  354.841563]  smp_apic_timer_interrupt+0x1cb/0x760
[  354.846397]  ? smp_reschedule_interrupt+0x109/0x650
[  354.851413]  ? smp_call_function_single_interrupt+0x650/0x650
[  354.857296]  ? interrupt_entry+0xb5/0xc0
[  354.861353]  ? trace_hardirqs_off_caller+0xbb/0x310
[  354.866368]  ? trace_hardirqs_off_caller+0xbb/0x310
[  354.871382]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  354.876220]  ? trace_hardirqs_on_caller+0x310/0x310
[  354.881233]  ? trace_hardirqs_on_caller+0x310/0x310
[  354.886242]  ? task_prio+0x50/0x50
[  354.889806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  354.895339]  ? check_preemption_disabled+0x48/0x280
[  354.900786]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  354.905634]  apic_timer_interrupt+0xf/0x20
[  354.909860]  </IRQ>
[  354.912099] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  354.917029] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  354.935936] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  354.943640] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  354.950905] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  354.958167] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  354.965428] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  354.972691] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  354.979998]  skb_clone+0x1bb/0x500
[  354.983544]  ? finish_task_switch+0x2f4/0x910
[  354.988039]  ? skb_split+0x11e0/0x11e0
[  354.991927]  ? preempt_notifier_register+0x200/0x200
[  354.997021]  ? __switch_to_asm+0x34/0x70
[  355.001077]  ? __switch_to_asm+0x34/0x70
[  355.005141]  ? __switch_to_asm+0x40/0x70
[  355.009206]  ? __switch_to_asm+0x34/0x70
[  355.013258]  ? __switch_to_asm+0x40/0x70
[  355.017312]  ? __switch_to_asm+0x34/0x70
[  355.021368]  ? __switch_to_asm+0x40/0x70
[  355.025419]  ? __switch_to_asm+0x34/0x70
[  355.029476]  ? __switch_to_asm+0x34/0x70
[  355.033531]  ? __switch_to_asm+0x40/0x70
[  355.037585]  ? __switch_to_asm+0x34/0x70
[  355.041646]  bpf_clone_redirect+0xb9/0x490
[  355.045876]  ? __schedule+0x8d7/0x21d0
[  355.049764]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  355.054780]  ? __sched_text_start+0x8/0x8
[  355.058920]  ? retint_kernel+0x2d/0x2d
[  355.062815]  ? find_held_lock+0x36/0x1c0
[  355.067388]  ? lock_acquire+0x1ed/0x520
[  355.071369]  ? bpf_test_run+0x3cb/0x780
[  355.075338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.080959]  ? check_preemption_disabled+0x48/0x280
[  355.085975]  ? kasan_check_read+0x11/0x20
[  355.090119]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.095390]  ? rcu_softirq_qs+0x20/0x20
[  355.099361]  ? preempt_schedule+0x4d/0x60
[  355.103502]  ? ___preempt_schedule+0x16/0x18
[  355.107940]  ? bpf_test_run+0x25d/0x780
[  355.111920]  ? netlink_diag_dump+0x2a0/0x2a0
[  355.116329]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  355.121860]  ? bpf_test_init.isra.10+0x70/0x100
[  355.126529]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  355.131289]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  355.136126]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  355.141661]  ? fput+0x130/0x1a0
[  355.144935]  ? __bpf_prog_get+0x9b/0x290
[  355.148992]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  355.153831]  ? bpf_prog_test_run+0x130/0x1a0
[  355.158239]  ? __x64_sys_bpf+0x3d8/0x520
[  355.162295]  ? bpf_prog_get+0x20/0x20
[  355.166107]  ? do_syscall_64+0x1b9/0x820
[  355.170163]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  355.175524]  ? syscall_return_slowpath+0x5e0/0x5e0
[  355.180451]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  355.185292]  ? trace_hardirqs_on_caller+0x310/0x310
[  355.190301]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  355.195316]  ? prepare_exit_to_usermode+0x291/0x3b0
[  355.200331]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  355.205171]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  355.210545] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  355.210631] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  355.217551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  355.217555] Call Trace:
[  355.217562]  <IRQ>
[  355.217578]  dump_stack+0x244/0x39d
[  355.217597]  ? dump_stack_print_info.cold.1+0x20/0x20
[  355.224118] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  355.233414]  warn_alloc.cold.116+0xb7/0x1bd
[  355.235965] syz-executor2 cpuset=syz2 mems_allowed=0
[  355.238108]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  355.271620]  ? lock_downgrade+0x900/0x900
[  355.275774]  ? trace_hardirqs_off+0xb8/0x310
[  355.280184]  ? trace_hardirqs_off+0xb8/0x310
[  355.284596]  __alloc_pages_slowpath+0x26e8/0x2e10
[  355.289574]  ? warn_alloc+0x120/0x120
[  355.293369]  ? print_usage_bug+0xc0/0xc0
[  355.297428]  ? warn_alloc+0x120/0x120
[  355.301344]  ? warn_alloc+0x120/0x120
[  355.305141]  ? print_usage_bug+0xc0/0xc0
[  355.309195]  ? kvm_clock_read+0x18/0x30
[  355.313166]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  355.318181]  ? print_usage_bug+0xc0/0xc0
[  355.322240]  ? __lock_acquire+0x62f/0x4c20
[  355.326474]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  355.332007]  ? should_fail+0x22d/0xd01
[  355.335892]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.341167]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  355.346266]  ? __lock_acquire+0x62f/0x4c20
[  355.350498]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  355.355606]  ? __lock_acquire+0x62f/0x4c20
[  355.359855]  ? should_fail+0x22d/0xd01
[  355.363739]  ? rcu_irq_exit+0x1a2/0x390
[  355.367725]  ? mark_held_locks+0x130/0x130
[  355.371966]  ? mark_held_locks+0x130/0x130
[  355.376200]  ? mark_held_locks+0xc7/0x130
[  355.380353]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  355.385470]  ? zap_class+0x640/0x640
[  355.389178]  ? print_usage_bug+0xc0/0xc0
[  355.393248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.398784]  ? check_preemption_disabled+0x48/0x280
[  355.403803]  ? __lock_is_held+0xb5/0x140
[  355.407862]  __alloc_pages_nodemask+0xa80/0xde0
[  355.412527]  ? zap_class+0x640/0x640
[  355.416239]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  355.421266]  ? find_held_lock+0x36/0x1c0
[  355.425442]  ? ____cache_alloc_node+0x1c7/0x1e0
[  355.430125]  ? lock_downgrade+0x900/0x900
[  355.434296]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.439846]  cache_grow_begin+0xa5/0x8c0
[  355.443905]  ? do_raw_spin_unlock+0xa7/0x330
[  355.448322]  fallback_alloc+0x204/0x2e0
[  355.452300]  ____cache_alloc_node+0x1c7/0x1e0
[  355.456796]  kmem_cache_alloc_node+0xe3/0x730
[  355.461287]  ? ipv6_get_ifaddr+0x42e/0x620
[  355.465528]  __alloc_skb+0x119/0x770
[  355.469237]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.474516]  ? netdev_alloc_frag+0x1f0/0x1f0
[  355.478936]  ? lock_downgrade+0x900/0x900
[  355.483089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.488619]  ? refcount_sub_and_test_checked+0x203/0x310
[  355.494068]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  355.499512]  ? addrconf_rs_timer+0x690/0x690
[  355.503925]  ndisc_alloc_skb+0x144/0x340
[  355.507988]  ndisc_send_rs+0x331/0x6e0
[  355.511877]  addrconf_rs_timer+0x314/0x690
[  355.516122]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.520362]  call_timer_fn+0x272/0x920
[  355.524247]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.528476]  ? process_timeout+0x40/0x40
[  355.532540]  ? mark_held_locks+0xc7/0x130
[  355.536694]  ? _raw_spin_unlock_irq+0x27/0x80
[  355.541190]  ? _raw_spin_unlock_irq+0x27/0x80
[  355.545685]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.549916]  ? lockdep_hardirqs_on+0x296/0x5b0
[  355.554495]  ? trace_hardirqs_on+0xbd/0x310
[  355.558810]  ? kasan_check_read+0x11/0x20
[  355.562956]  ? __run_timers+0x7da/0xc70
[  355.566927]  ? trace_hardirqs_off_caller+0x310/0x310
[  355.572030]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.576267]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.580494]  __run_timers+0x7e5/0xc70
[  355.584300]  ? timer_fixup_init+0x70/0x70
[  355.588447]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  355.593477]  ? zap_class+0x640/0x640
[  355.597191]  ? print_usage_bug+0xc0/0xc0
[  355.601273]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  355.606466]  ? find_held_lock+0x36/0x1c0
[  355.610530]  ? zap_class+0x640/0x640
[  355.614249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.619786]  ? check_preemption_disabled+0x48/0x280
[  355.624810]  ? __lock_is_held+0xb5/0x140
[  355.628870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.634406]  ? check_preemption_disabled+0x48/0x280
[  355.639425]  run_timer_softirq+0x52/0xb0
[  355.643481]  ? rcu_read_lock_sched_held+0x14f/0x180
[  355.648700]  __do_softirq+0x308/0xb7e
[  355.652506]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  355.656994]  ? lock_downgrade+0x900/0x900
[  355.661144]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  355.666251]  ? pvclock_read_flags+0x160/0x160
[  355.670747]  ? lapic_next_event+0x5a/0x90
[  355.674894]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.680436]  ? kvm_clock_read+0x18/0x30
[  355.684407]  ? kvm_sched_clock_read+0x9/0x20
[  355.688827]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  355.694366]  ? check_preemption_disabled+0x48/0x280
[  355.699386]  irq_exit+0x17f/0x1c0
[  355.702833]  smp_apic_timer_interrupt+0x1cb/0x760
[  355.707677]  ? smp_call_function_single_interrupt+0x650/0x650
[  355.713572]  ? interrupt_entry+0xb5/0xc0
[  355.717629]  ? trace_hardirqs_off_caller+0xbb/0x310
[  355.722648]  ? trace_hardirqs_off_caller+0xbb/0x310
[  355.727672]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  355.732546]  ? trace_hardirqs_on_caller+0x310/0x310
[  355.737578]  ? trace_hardirqs_on_caller+0x310/0x310
[  355.742594]  ? task_prio+0x50/0x50
[  355.746130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.751673]  ? check_preemption_disabled+0x48/0x280
[  355.756690]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  355.761624]  apic_timer_interrupt+0xf/0x20
[  355.765854]  </IRQ>
[  355.768093] RIP: 0010:dump_stack+0x358/0x39d
[  355.772499] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  355.791391] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  355.799092] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  355.806357] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  355.813636] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  355.820908] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  355.828171] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  355.835465]  ? dump_stack+0x34f/0x39d
[  355.839273]  ? dump_stack_print_info.cold.1+0x20/0x20
[  355.847240]  ? mark_held_locks+0x130/0x130
[  355.851471]  ? mark_held_locks+0x130/0x130
[  355.855710]  dump_header+0x27b/0xf72
[  355.859429]  ? pagefault_out_of_memory+0x197/0x197
[  355.864365]  ? __lock_acquire+0x62f/0x4c20
[  355.868599]  ? percpu_ref_get_many+0x240/0x240
[  355.873186]  ? print_usage_bug+0xc0/0xc0
[  355.877247]  ? zap_class+0x640/0x640
[  355.880960]  ? print_usage_bug+0xc0/0xc0
[  355.885015]  ? print_usage_bug+0xc0/0xc0
[  355.889073]  ? zap_class+0x640/0x640
[  355.892788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.898327]  ? find_held_lock+0x36/0x1c0
[  355.902392]  ? mark_held_locks+0xc7/0x130
[  355.906538]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  355.911658]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  355.916761]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  355.921340]  ? trace_hardirqs_on+0xbd/0x310
[  355.925663]  ? kasan_check_read+0x11/0x20
[  355.929806]  ? ___ratelimit+0x3b4/0x672
[  355.933783]  ? trace_hardirqs_off_caller+0x310/0x310
[  355.938884]  ? trace_hardirqs_on+0x310/0x310
[  355.943289]  ? lock_downgrade+0x900/0x900
[  355.947438]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  355.952547]  ? ___ratelimit+0x3b9/0x672
[  355.956519]  ? idr_get_free+0xf70/0xf70
[  355.960486]  ? find_held_lock+0x36/0x1c0
[  355.964548]  oom_kill_process.cold.27+0x10/0x903
[  355.969297]  ? zap_class+0x640/0x640
[  355.973119]  ? check_preemption_disabled+0x48/0x280
[  355.978135]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  355.983060]  ? kasan_check_read+0x11/0x20
[  355.987210]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.992484]  ? oom_evaluate_task+0x540/0x540
[  355.996890]  ? find_held_lock+0x36/0x1c0
[  356.000957]  ? out_of_memory+0x974/0x1430
[  356.005101]  ? lock_downgrade+0x900/0x900
[  356.009247]  ? check_preemption_disabled+0x48/0x280
[  356.014264]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  356.019187]  ? kasan_check_read+0x11/0x20
[  356.023332]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.028695]  ? rcu_softirq_qs+0x20/0x20
[  356.032674]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.038208]  ? oom_evaluate_task+0x302/0x540
[  356.042619]  out_of_memory+0xa84/0x1430
[  356.046615]  ? oom_killer_disable+0x3a0/0x3a0
[  356.051112]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  356.056053]  ? __ww_mutex_check_waiters+0x160/0x160
[  356.061075]  __alloc_pages_slowpath+0x2354/0x2e10
[  356.065944]  ? warn_alloc+0x120/0x120
[  356.069741]  ? mark_held_locks+0x130/0x130
[  356.073973]  ? find_get_entry+0xaae/0x1120
[  356.078215]  ? filemap_map_pages+0x1a20/0x1a20
[  356.082792]  ? zap_class+0x640/0x640
[  356.086504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.092041]  ? check_preemption_disabled+0x48/0x280
[  356.097052]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.102600]  ? should_fail+0x22d/0xd01
[  356.106509]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  356.111606]  ? zap_class+0x640/0x640
[  356.115350]  ? __lock_is_held+0xb5/0x140
[  356.119411]  ? mark_held_locks+0x130/0x130
[  356.123652]  ? lock_release+0xa00/0xa00
[  356.127744]  ? perf_trace_sched_process_exec+0x860/0x860
[  356.133188]  ? xa_load+0x2ba/0x460
[  356.136724]  ? lock_downgrade+0x900/0x900
[  356.140881]  ? __might_sleep+0x95/0x190
[  356.144853]  __alloc_pages_nodemask+0xa80/0xde0
[  356.149524]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  356.154535]  ? __page_cache_alloc+0x191/0x5c0
[  356.159026]  ? xa_load+0x2e1/0x460
[  356.162564]  ? xa_clear_mark+0x40/0x40
[  356.166446]  ? zap_class+0x640/0x640
[  356.170164]  ? zap_class+0x640/0x640
[  356.173874]  ? zap_class+0x640/0x640
[  356.177587]  ? __do_page_cache_readahead+0x663/0x810
[  356.182695]  ? find_held_lock+0x36/0x1c0
[  356.186790]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  356.192329]  alloc_pages_current+0x173/0x350
[  356.196740]  __page_cache_alloc+0x38c/0x5c0
[  356.201053]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  356.205972]  ? kasan_check_read+0x11/0x20
[  356.210112]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.215388]  ? generic_perform_write+0x6a0/0x6a0
[  356.220136]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.225676]  ? check_preemption_disabled+0x48/0x280
[  356.230703]  filemap_fault+0x1595/0x25f0
[  356.234770]  ? __lock_page_or_retry+0xa00/0xa00
[  356.239437]  ? mark_held_locks+0x130/0x130
[  356.243869]  ? filemap_map_pages+0xd6b/0x1a20
[  356.248365]  ? lock_downgrade+0x900/0x900
[  356.252536]  ? check_preemption_disabled+0x48/0x280
[  356.257549]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  356.262474]  ? kasan_check_read+0x11/0x20
[  356.266623]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.271896]  ? rcu_softirq_qs+0x20/0x20
[  356.275889]  ? filemap_map_pages+0xd92/0x1a20
[  356.280398]  ? find_get_entries_tag+0x1400/0x1400
[  356.285231]  ? find_held_lock+0x36/0x1c0
[  356.289323]  ? lock_acquire+0x1ed/0x520
[  356.293295]  ? ext4_filemap_fault+0x7a/0xad
[  356.297628]  ? lock_release+0xa00/0xa00
[  356.301596]  ? perf_trace_sched_process_exec+0x860/0x860
[  356.307051]  ? print_usage_bug+0xc0/0xc0
[  356.311127]  ? down_read+0x8d/0x120
[  356.314835]  ? ext4_filemap_fault+0x7a/0xad
[  356.319154]  ? __down_interruptible+0x700/0x700
[  356.323820]  ? find_held_lock+0x36/0x1c0
[  356.327885]  ext4_filemap_fault+0x82/0xad
[  356.332029]  __do_fault+0x100/0x6b0
[  356.335744]  ? lock_downgrade+0x900/0x900
[  356.339905]  ? pmd_devmap_trans_unstable+0x220/0x220
[  356.345003]  ? kasan_check_read+0x11/0x20
[  356.349140]  ? do_raw_spin_unlock+0xa7/0x330
[  356.353540]  ? do_raw_spin_trylock+0x270/0x270
[  356.358126]  __handle_mm_fault+0x3ea0/0x5be0
[  356.362530]  ? perf_trace_lock+0x7a0/0x7a0
[  356.366771]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  356.371621]  ? __switch_to_asm+0x34/0x70
[  356.375687]  ? __switch_to_asm+0x34/0x70
[  356.379764]  ? zap_class+0x640/0x640
[  356.383476]  ? zap_class+0x640/0x640
[  356.387191]  ? __x64_sys_futex+0x53e/0x6a0
[  356.391423]  ? find_held_lock+0x36/0x1c0
[  356.395490]  ? handle_mm_fault+0x42a/0xc70
[  356.399719]  ? lock_downgrade+0x900/0x900
[  356.403859]  ? check_preemption_disabled+0x48/0x280
[  356.408870]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  356.413803]  ? kasan_check_read+0x11/0x20
[  356.417946]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.423216]  ? rcu_softirq_qs+0x20/0x20
[  356.427180]  ? trace_hardirqs_off_caller+0x310/0x310
[  356.432284]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.437818]  ? check_preemption_disabled+0x48/0x280
[  356.442838]  handle_mm_fault+0x54f/0xc70
[  356.446902]  ? __handle_mm_fault+0x5be0/0x5be0
[  356.451485]  ? find_vma+0x34/0x190
[  356.455124]  __do_page_fault+0x5e8/0xe60
[  356.459182]  ? trace_hardirqs_off+0xb8/0x310
[  356.463592]  do_page_fault+0xf2/0x7e0
[  356.467393]  ? vmalloc_sync_all+0x30/0x30
[  356.471556]  ? error_entry+0x70/0xd0
[  356.475268]  ? trace_hardirqs_off_caller+0xbb/0x310
[  356.480274]  ? trace_hardirqs_on_caller+0xc0/0x310
[  356.485222]  ? syscall_return_slowpath+0x5e0/0x5e0
[  356.490155]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  356.494996]  ? trace_hardirqs_on_caller+0x310/0x310
[  356.500005]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  356.505469]  ? prepare_exit_to_usermode+0x291/0x3b0
[  356.510483]  ? page_fault+0x8/0x30
[  356.514019]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  356.518858]  ? page_fault+0x8/0x30
[  356.522399]  page_fault+0x1e/0x30
[  356.525847] RIP: 0033:0x404068
[  356.529043] Code: Bad RIP value.
[  356.532402] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  356.537860] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  356.545120] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  356.552381] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  356.559654] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  356.566919] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  356.574198] warn_alloc_show_mem: 1 callbacks suppressed
[  356.574208] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  356.574209] Mem-Info:
[  356.574240] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  356.574240]  active_file:13 inactive_file:13 isolated_file:0
[  356.574240]  unevictable:0 dirty:0 writeback:0 unstable:0
[  356.574240]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  356.574240]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  356.574240]  free:13747 free_pcp:348 free_cma:0
[  356.579569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  356.579576] Call Trace:
[  356.586940] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  356.589330]  <IRQ>
[  356.622452] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  356.631917]  dump_stack+0x244/0x39d
[  356.634471] lowmem_reserve[]: 0 2818 6321 6321
[  356.662392]  ? dump_stack_print_info.cold.1+0x20/0x20
[  356.664514] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  356.690628]  warn_alloc.cold.116+0xb7/0x1bd
[  356.694217] lowmem_reserve[]: 0 0 3503 3503
[  356.698792]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  356.703953] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  356.731443]  ? lock_downgrade+0x900/0x900
[  356.735732] lowmem_reserve[]: 0 0 0 0
[  356.740047]  ? trace_hardirqs_off+0xb8/0x310
[  356.744859] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  356.774006]  ? trace_hardirqs_off+0xb8/0x310
[  356.778135] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  356.781931]  __alloc_pages_slowpath+0x26e8/0x2e10
[  356.786305] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  356.799859]  ? warn_alloc+0x120/0x120
[  356.804222] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  356.819115]  ? print_usage_bug+0xc0/0xc0
[  356.823934] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  356.839086]  ? warn_alloc+0x120/0x120
[  356.842861] 4484 total pagecache pages
[  356.851683]  ? warn_alloc+0x120/0x120
[  356.855742] 0 pages in swap cache
[  356.864296]  ? print_usage_bug+0xc0/0xc0
[  356.868073] Swap cache stats: add 0, delete 0, find 0/0
[  356.871944]  ? print_usage_bug+0xc0/0xc0
[  356.875713] Free swap  = 0kB
[  356.879163]  ? __lock_acquire+0x62f/0x4c20
[  356.883193] Total swap = 0kB
[  356.888546]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.892583] 1965979 pages RAM
[  356.895593]  ? should_fail+0x22d/0xd01
[  356.900276] 0 pages HighMem/MovableOnly
[  356.900284] 342854 pages reserved
[  356.903303]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  356.908804] 0 pages cma reserved
[  356.911912]  ? __lock_acquire+0x62f/0x4c20
[  356.915844] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  356.919731]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  356.919743]  ? __lock_acquire+0x62f/0x4c20
[  356.919757]  ? should_fail+0x22d/0xd01
[  356.923235] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  356.928267]  ? find_held_lock+0x36/0x1c0
[  356.931619] syz-fuzzer cpuset=/ mems_allowed=0
[  356.935881]  ? mark_held_locks+0x130/0x130
[  356.978692]  ? mark_held_locks+0x130/0x130
[  356.982918]  ? zap_class+0x640/0x640
[  356.986643]  ? zap_class+0x640/0x640
[  356.990370]  ? print_usage_bug+0xc0/0xc0
[  356.994435]  ? do_raw_spin_unlock+0xa7/0x330
[  356.998836]  ? zap_class+0x640/0x640
[  357.002551]  ? print_usage_bug+0xc0/0xc0
[  357.006608]  ? wq_watchdog_touch+0x9c/0xfe
[  357.010854]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.016396]  ? check_preemption_disabled+0x48/0x280
[  357.021505]  ? __lock_is_held+0xb5/0x140
[  357.025573]  __alloc_pages_nodemask+0xa80/0xde0
[  357.030236]  ? zap_class+0x640/0x640
[  357.033957]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  357.038979]  ? find_held_lock+0x36/0x1c0
[  357.043047]  ? ____cache_alloc_node+0x1c7/0x1e0
[  357.047712]  ? lock_downgrade+0x900/0x900
[  357.051885]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.057438]  cache_grow_begin+0xa5/0x8c0
[  357.061492]  ? do_raw_spin_unlock+0xa7/0x330
[  357.066452]  fallback_alloc+0x204/0x2e0
[  357.070442]  ____cache_alloc_node+0x1c7/0x1e0
[  357.075060]  kmem_cache_alloc_node+0xe3/0x730
[  357.079557]  ? ipv6_get_ifaddr+0x42e/0x620
[  357.083796]  __alloc_skb+0x119/0x770
[  357.087503]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  357.092776]  ? netdev_alloc_frag+0x1f0/0x1f0
[  357.097178]  ? lock_downgrade+0x900/0x900
[  357.101331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.106867]  ? refcount_sub_and_test_checked+0x203/0x310
[  357.112315]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  357.117757]  ? addrconf_rs_timer+0x690/0x690
[  357.122182]  ndisc_alloc_skb+0x144/0x340
[  357.126263]  ndisc_send_rs+0x331/0x6e0
[  357.130149]  addrconf_rs_timer+0x314/0x690
[  357.134395]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.138637]  call_timer_fn+0x272/0x920
[  357.142520]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.146759]  ? process_timeout+0x40/0x40
[  357.150824]  ? __run_timers+0x7da/0xc70
[  357.154796]  ? _raw_spin_unlock_irq+0x27/0x80
[  357.159282]  ? _raw_spin_unlock_irq+0x27/0x80
[  357.163770]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.167997]  ? lockdep_hardirqs_on+0x296/0x5b0
[  357.172580]  ? trace_hardirqs_on+0xbd/0x310
[  357.176896]  ? kasan_check_read+0x11/0x20
[  357.181037]  ? __run_timers+0x7da/0xc70
[  357.185005]  ? trace_hardirqs_off_caller+0x310/0x310
[  357.190133]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.194479]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  357.198710]  __run_timers+0x7e5/0xc70
[  357.202513]  ? timer_fixup_init+0x70/0x70
[  357.206669]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  357.211685]  ? zap_class+0x640/0x640
[  357.215394]  ? enqueue_hrtimer+0x1a5/0x560
[  357.219626]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  357.224832]  ? find_held_lock+0x36/0x1c0
[  357.228892]  ? zap_class+0x640/0x640
[  357.232606]  ? pvclock_read_flags+0x160/0x160
[  357.237102]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.242638]  ? check_preemption_disabled+0x48/0x280
[  357.247654]  ? __lock_is_held+0xb5/0x140
[  357.251740]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.257364]  ? check_preemption_disabled+0x48/0x280
[  357.262384]  run_timer_softirq+0x52/0xb0
[  357.266442]  ? rcu_read_lock_sched_held+0x14f/0x180
[  357.271455]  __do_softirq+0x308/0xb7e
[  357.275345]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  357.279833]  ? lock_downgrade+0x900/0x900
[  357.283983]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  357.289095]  ? pvclock_read_flags+0x160/0x160
[  357.293670]  ? lapic_next_event+0x5a/0x90
[  357.297813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.303347]  ? kvm_clock_read+0x18/0x30
[  357.307334]  ? kvm_sched_clock_read+0x9/0x20
[  357.311741]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.317300]  ? check_preemption_disabled+0x48/0x280
[  357.322320]  irq_exit+0x17f/0x1c0
[  357.325766]  smp_apic_timer_interrupt+0x1cb/0x760
[  357.330609]  ? smp_reschedule_interrupt+0x109/0x650
[  357.335633]  ? smp_call_function_single_interrupt+0x650/0x650
[  357.341512]  ? interrupt_entry+0xb5/0xc0
[  357.345571]  ? trace_hardirqs_off_caller+0xbb/0x310
[  357.350583]  ? trace_hardirqs_off_caller+0xbb/0x310
[  357.355596]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  357.360434]  ? trace_hardirqs_on_caller+0x310/0x310
[  357.365448]  ? trace_hardirqs_on_caller+0x310/0x310
[  357.370460]  ? task_prio+0x50/0x50
[  357.373994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.379532]  ? check_preemption_disabled+0x48/0x280
[  357.384556]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  357.389400]  apic_timer_interrupt+0xf/0x20
[  357.393621]  </IRQ>
[  357.395859] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  357.400791] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  357.419684] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  357.427387] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  357.434656] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  357.441980] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  357.449255] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  357.456534] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  357.463831]  skb_clone+0x1bb/0x500
[  357.467368]  ? finish_task_switch+0x2f4/0x910
[  357.471862]  ? skb_split+0x11e0/0x11e0
[  357.475751]  ? preempt_notifier_register+0x200/0x200
[  357.480852]  ? __switch_to_asm+0x34/0x70
[  357.484908]  ? __switch_to_asm+0x34/0x70
[  357.488962]  ? __switch_to_asm+0x40/0x70
[  357.493013]  ? __switch_to_asm+0x34/0x70
[  357.497073]  ? __switch_to_asm+0x40/0x70
[  357.501150]  ? __switch_to_asm+0x34/0x70
[  357.505208]  ? __switch_to_asm+0x40/0x70
[  357.509277]  ? __switch_to_asm+0x34/0x70
[  357.513329]  ? __switch_to_asm+0x34/0x70
[  357.517380]  ? __switch_to_asm+0x40/0x70
[  357.521447]  ? __switch_to_asm+0x34/0x70
[  357.525507]  bpf_clone_redirect+0xb9/0x490
[  357.529743]  ? __schedule+0x8d7/0x21d0
[  357.533628]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  357.538642]  ? __sched_text_start+0x8/0x8
[  357.542787]  ? retint_kernel+0x2d/0x2d
[  357.546764]  ? find_held_lock+0x36/0x1c0
[  357.550826]  ? lock_acquire+0x1ed/0x520
[  357.554796]  ? bpf_test_run+0x3cb/0x780
[  357.558769]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.564299]  ? check_preemption_disabled+0x48/0x280
[  357.569321]  ? kasan_check_read+0x11/0x20
[  357.573466]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  357.578739]  ? rcu_softirq_qs+0x20/0x20
[  357.582708]  ? preempt_schedule+0x4d/0x60
[  357.586857]  ? ___preempt_schedule+0x16/0x18
[  357.591287]  ? bpf_test_run+0x25d/0x780
[  357.595264]  ? netlink_diag_dump+0x2a0/0x2a0
[  357.599679]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.605209]  ? bpf_test_init.isra.10+0x70/0x100
[  357.609883]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  357.614641]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  357.619474]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  357.625016]  ? fput+0x130/0x1a0
[  357.628305]  ? __bpf_prog_get+0x9b/0x290
[  357.632366]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  357.637208]  ? bpf_prog_test_run+0x130/0x1a0
[  357.641613]  ? __x64_sys_bpf+0x3d8/0x520
[  357.645670]  ? bpf_prog_get+0x20/0x20
[  357.649489]  ? do_syscall_64+0x1b9/0x820
[  357.653639]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  357.658998]  ? syscall_return_slowpath+0x5e0/0x5e0
[  357.663921]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  357.668759]  ? trace_hardirqs_on_caller+0x310/0x310
[  357.673789]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  357.678805]  ? prepare_exit_to_usermode+0x291/0x3b0
[  357.683824]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  357.688675]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  357.694067] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  357.694136] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  357.701074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  357.701079] Call Trace:
[  357.701085]  <IRQ>
[  357.701100]  dump_stack+0x244/0x39d
[  357.701119]  ? dump_stack_print_info.cold.1+0x20/0x20
[  357.707660] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  357.716939]  warn_alloc.cold.116+0xb7/0x1bd
[  357.719514] syz-executor2 cpuset=syz2 mems_allowed=0
[  357.721653]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  357.755100]  ? lock_downgrade+0x900/0x900
[  357.759248]  ? trace_hardirqs_off+0xb8/0x310
[  357.763675]  ? trace_hardirqs_off+0xb8/0x310
[  357.768090]  __alloc_pages_slowpath+0x26e8/0x2e10
[  357.772957]  ? warn_alloc+0x120/0x120
[  357.776757]  ? print_usage_bug+0xc0/0xc0
[  357.780820]  ? warn_alloc+0x120/0x120
[  357.784622]  ? warn_alloc+0x120/0x120
[  357.788421]  ? print_usage_bug+0xc0/0xc0
[  357.792480]  ? print_usage_bug+0xc0/0xc0
[  357.796549]  ? __lock_acquire+0x62f/0x4c20
[  357.800784]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.806315]  ? should_fail+0x22d/0xd01
[  357.810202]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  357.815386]  ? __lock_acquire+0x62f/0x4c20
[  357.819621]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  357.824718]  ? __lock_acquire+0x62f/0x4c20
[  357.828944]  ? should_fail+0x22d/0xd01
[  357.832826]  ? find_held_lock+0x36/0x1c0
[  357.836893]  ? mark_held_locks+0x130/0x130
[  357.841127]  ? mark_held_locks+0x130/0x130
[  357.845364]  ? zap_class+0x640/0x640
[  357.849076]  ? zap_class+0x640/0x640
[  357.852788]  ? print_usage_bug+0xc0/0xc0
[  357.856843]  ? do_raw_spin_unlock+0xa7/0x330
[  357.861246]  ? zap_class+0x640/0x640
[  357.864953]  ? print_usage_bug+0xc0/0xc0
[  357.869008]  ? wq_watchdog_touch+0x9c/0xfe
[  357.873240]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.878772]  ? check_preemption_disabled+0x48/0x280
[  357.883794]  ? __lock_is_held+0xb5/0x140
[  357.887855]  __alloc_pages_nodemask+0xa80/0xde0
[  357.892521]  ? zap_class+0x640/0x640
[  357.896241]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  357.901261]  ? find_held_lock+0x36/0x1c0
[  357.905327]  ? ____cache_alloc_node+0x1c7/0x1e0
[  357.909992]  ? lock_downgrade+0x900/0x900
[  357.914143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.919680]  cache_grow_begin+0xa5/0x8c0
[  357.923734]  ? do_raw_spin_unlock+0xa7/0x330
[  357.928149]  fallback_alloc+0x204/0x2e0
[  357.932132]  ____cache_alloc_node+0x1c7/0x1e0
[  357.936657]  kmem_cache_alloc_node+0xe3/0x730
[  357.941170]  ? ipv6_get_ifaddr+0x42e/0x620
[  357.945435]  __alloc_skb+0x119/0x770
[  357.949142]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  357.954429]  ? netdev_alloc_frag+0x1f0/0x1f0
[  357.958829]  ? lock_downgrade+0x900/0x900
[  357.962979]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.968514]  ? refcount_sub_and_test_checked+0x203/0x310
[  357.973979]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  357.979426]  ? addrconf_rs_timer+0x690/0x690
[  357.983848]  ndisc_alloc_skb+0x144/0x340
[  357.987912]  ndisc_send_rs+0x331/0x6e0
[  357.991803]  addrconf_rs_timer+0x314/0x690
[  357.996036]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  358.000277]  call_timer_fn+0x272/0x920
[  358.004160]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  358.008385]  ? process_timeout+0x40/0x40
[  358.012453]  ? mark_held_locks+0xc7/0x130
[  358.016603]  ? _raw_spin_unlock_irq+0x27/0x80
[  358.021092]  ? _raw_spin_unlock_irq+0x27/0x80
[  358.025582]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  358.029815]  ? lockdep_hardirqs_on+0x296/0x5b0
[  358.034392]  ? trace_hardirqs_on+0xbd/0x310
[  358.038710]  ? kasan_check_read+0x11/0x20
[  358.042854]  ? __run_timers+0x7da/0xc70
[  358.046826]  ? trace_hardirqs_off_caller+0x310/0x310
[  358.052045]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  358.056276]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  358.060504]  __run_timers+0x7e5/0xc70
[  358.064310]  ? timer_fixup_init+0x70/0x70
[  358.068455]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  358.073475]  ? zap_class+0x640/0x640
[  358.077186]  ? print_usage_bug+0xc0/0xc0
[  358.081245]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  358.086560]  ? find_held_lock+0x36/0x1c0
[  358.090712]  ? zap_class+0x640/0x640
[  358.094427]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.099959]  ? check_preemption_disabled+0x48/0x280
[  358.104984]  ? __lock_is_held+0xb5/0x140
[  358.109044]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.114575]  ? check_preemption_disabled+0x48/0x280
[  358.119595]  run_timer_softirq+0x52/0xb0
[  358.123661]  ? rcu_read_lock_sched_held+0x14f/0x180
[  358.128678]  __do_softirq+0x308/0xb7e
[  358.132484]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  358.136972]  ? lock_downgrade+0x900/0x900
[  358.141135]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  358.146241]  ? pvclock_read_flags+0x160/0x160
[  358.150745]  ? lapic_next_event+0x5a/0x90
[  358.154893]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.160430]  ? kvm_clock_read+0x18/0x30
[  358.164405]  ? kvm_sched_clock_read+0x9/0x20
[  358.168808]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.174346]  ? check_preemption_disabled+0x48/0x280
[  358.179378]  irq_exit+0x17f/0x1c0
[  358.182825]  smp_apic_timer_interrupt+0x1cb/0x760
[  358.187668]  ? smp_call_function_single_interrupt+0x650/0x650
[  358.193545]  ? interrupt_entry+0xb5/0xc0
[  358.197602]  ? trace_hardirqs_off_caller+0xbb/0x310
[  358.202616]  ? trace_hardirqs_off_caller+0xbb/0x310
[  358.207631]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.212488]  ? trace_hardirqs_on_caller+0x310/0x310
[  358.217502]  ? trace_hardirqs_on_caller+0x310/0x310
[  358.222522]  ? task_prio+0x50/0x50
[  358.226062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.231597]  ? check_preemption_disabled+0x48/0x280
[  358.236612]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.241464]  apic_timer_interrupt+0xf/0x20
[  358.245687]  </IRQ>
[  358.247920] RIP: 0010:dump_stack+0x358/0x39d
[  358.252348] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  358.271241] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  358.278946] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  358.286212] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  358.293479] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  358.300746] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  358.308020] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  358.315300]  ? dump_stack+0x34f/0x39d
[  358.319109]  ? dump_stack_print_info.cold.1+0x20/0x20
[  358.324301]  ? mark_held_locks+0x130/0x130
[  358.328534]  ? mark_held_locks+0x130/0x130
[  358.332772]  dump_header+0x27b/0xf72
[  358.336524]  ? pagefault_out_of_memory+0x197/0x197
[  358.341463]  ? __lock_acquire+0x62f/0x4c20
[  358.345693]  ? percpu_ref_get_many+0x240/0x240
[  358.350271]  ? print_usage_bug+0xc0/0xc0
[  358.354336]  ? zap_class+0x640/0x640
[  358.358046]  ? print_usage_bug+0xc0/0xc0
[  358.362098]  ? print_usage_bug+0xc0/0xc0
[  358.366158]  ? zap_class+0x640/0x640
[  358.369880]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.375412]  ? find_held_lock+0x36/0x1c0
[  358.379483]  ? mark_held_locks+0xc7/0x130
[  358.383633]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  358.388749]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  358.393861]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  358.398454]  ? trace_hardirqs_on+0xbd/0x310
[  358.402769]  ? kasan_check_read+0x11/0x20
[  358.406910]  ? ___ratelimit+0x3b4/0x672
[  358.410882]  ? trace_hardirqs_off_caller+0x310/0x310
[  358.415980]  ? trace_hardirqs_on+0x310/0x310
[  358.420387]  ? lock_downgrade+0x900/0x900
[  358.424538]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  358.429636]  ? ___ratelimit+0x3b9/0x672
[  358.433607]  ? idr_get_free+0xf70/0xf70
[  358.437576]  ? find_held_lock+0x36/0x1c0
[  358.441643]  oom_kill_process.cold.27+0x10/0x903
[  358.446395]  ? zap_class+0x640/0x640
[  358.450103]  ? check_preemption_disabled+0x48/0x280
[  358.455119]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.460042]  ? kasan_check_read+0x11/0x20
[  358.464186]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.469461]  ? oom_evaluate_task+0x540/0x540
[  358.473876]  ? find_held_lock+0x36/0x1c0
[  358.477954]  ? out_of_memory+0x974/0x1430
[  358.482098]  ? lock_downgrade+0x900/0x900
[  358.486242]  ? check_preemption_disabled+0x48/0x280
[  358.491270]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.496190]  ? kasan_check_read+0x11/0x20
[  358.500334]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.505601]  ? rcu_softirq_qs+0x20/0x20
[  358.509590]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.515133]  ? oom_evaluate_task+0x302/0x540
[  358.519539]  out_of_memory+0xa84/0x1430
[  358.523520]  ? oom_killer_disable+0x3a0/0x3a0
[  358.528097]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  358.533023]  ? __ww_mutex_check_waiters+0x160/0x160
[  358.538043]  __alloc_pages_slowpath+0x2354/0x2e10
[  358.542904]  ? warn_alloc+0x120/0x120
[  358.546701]  ? mark_held_locks+0x130/0x130
[  358.550934]  ? find_get_entry+0xaae/0x1120
[  358.555170]  ? filemap_map_pages+0x1a20/0x1a20
[  358.559750]  ? zap_class+0x640/0x640
[  358.563464]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.568999]  ? check_preemption_disabled+0x48/0x280
[  358.574010]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.579538]  ? should_fail+0x22d/0xd01
[  358.583425]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  358.588531]  ? zap_class+0x640/0x640
[  358.592261]  ? __lock_is_held+0xb5/0x140
[  358.596325]  ? mark_held_locks+0x130/0x130
[  358.600555]  ? lock_release+0xa00/0xa00
[  358.604534]  ? perf_trace_sched_process_exec+0x860/0x860
[  358.609980]  ? xa_load+0x2ba/0x460
[  358.613514]  ? lock_downgrade+0x900/0x900
[  358.617787]  ? __might_sleep+0x95/0x190
[  358.621763]  __alloc_pages_nodemask+0xa80/0xde0
[  358.626457]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  358.631470]  ? __page_cache_alloc+0x191/0x5c0
[  358.635964]  ? xa_load+0x2e1/0x460
[  358.639508]  ? xa_clear_mark+0x40/0x40
[  358.643392]  ? zap_class+0x640/0x640
[  358.647118]  ? zap_class+0x640/0x640
[  358.650845]  ? zap_class+0x640/0x640
[  358.654557]  ? __do_page_cache_readahead+0x663/0x810
[  358.659749]  ? find_held_lock+0x36/0x1c0
[  358.663991]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  358.669536]  alloc_pages_current+0x173/0x350
[  358.673964]  __page_cache_alloc+0x38c/0x5c0
[  358.678293]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.683215]  ? kasan_check_read+0x11/0x20
[  358.687356]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.692629]  ? generic_perform_write+0x6a0/0x6a0
[  358.697382]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.702912]  ? check_preemption_disabled+0x48/0x280
[  358.707931]  filemap_fault+0x1595/0x25f0
[  358.711998]  ? __lock_page_or_retry+0xa00/0xa00
[  358.716669]  ? mark_held_locks+0x130/0x130
[  358.720908]  ? filemap_map_pages+0xd6b/0x1a20
[  358.725398]  ? lock_downgrade+0x900/0x900
[  358.729549]  ? check_preemption_disabled+0x48/0x280
[  358.734566]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.739492]  ? kasan_check_read+0x11/0x20
[  358.743639]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.748997]  ? rcu_softirq_qs+0x20/0x20
[  358.752983]  ? filemap_map_pages+0xd92/0x1a20
[  358.757573]  ? find_get_entries_tag+0x1400/0x1400
[  358.762407]  ? find_held_lock+0x36/0x1c0
[  358.766513]  ? lock_acquire+0x1ed/0x520
[  358.770482]  ? ext4_filemap_fault+0x7a/0xad
[  358.774806]  ? lock_release+0xa00/0xa00
[  358.778772]  ? perf_trace_sched_process_exec+0x860/0x860
[  358.784216]  ? print_usage_bug+0xc0/0xc0
[  358.788282]  ? down_read+0x8d/0x120
[  358.791901]  ? ext4_filemap_fault+0x7a/0xad
[  358.796216]  ? __down_interruptible+0x700/0x700
[  358.800881]  ? find_held_lock+0x36/0x1c0
[  358.804956]  ext4_filemap_fault+0x82/0xad
[  358.809130]  __do_fault+0x100/0x6b0
[  358.812766]  ? lock_downgrade+0x900/0x900
[  358.816926]  ? pmd_devmap_trans_unstable+0x220/0x220
[  358.822039]  ? kasan_check_read+0x11/0x20
[  358.826183]  ? do_raw_spin_unlock+0xa7/0x330
[  358.830599]  ? do_raw_spin_trylock+0x270/0x270
[  358.835204]  __handle_mm_fault+0x3ea0/0x5be0
[  358.839606]  ? perf_trace_lock+0x7a0/0x7a0
[  358.843842]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  358.848683]  ? __switch_to_asm+0x34/0x70
[  358.852741]  ? __switch_to_asm+0x34/0x70
[  358.856809]  ? zap_class+0x640/0x640
[  358.860529]  ? zap_class+0x640/0x640
[  358.864241]  ? __x64_sys_futex+0x53e/0x6a0
[  358.868515]  ? find_held_lock+0x36/0x1c0
[  358.872581]  ? handle_mm_fault+0x42a/0xc70
[  358.876809]  ? lock_downgrade+0x900/0x900
[  358.880949]  ? check_preemption_disabled+0x48/0x280
[  358.885960]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  358.890894]  ? kasan_check_read+0x11/0x20
[  358.895037]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.900760]  ? rcu_softirq_qs+0x20/0x20
[  358.904733]  ? trace_hardirqs_off_caller+0x310/0x310
[  358.909832]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.915369]  ? check_preemption_disabled+0x48/0x280
[  358.920387]  handle_mm_fault+0x54f/0xc70
[  358.924463]  ? __handle_mm_fault+0x5be0/0x5be0
[  358.929044]  ? find_vma+0x34/0x190
[  358.932584]  __do_page_fault+0x5e8/0xe60
[  358.936640]  ? trace_hardirqs_off+0xb8/0x310
[  358.941053]  do_page_fault+0xf2/0x7e0
[  358.944853]  ? vmalloc_sync_all+0x30/0x30
[  358.949016]  ? error_entry+0x70/0xd0
[  358.952813]  ? trace_hardirqs_off_caller+0xbb/0x310
[  358.957830]  ? trace_hardirqs_on_caller+0xc0/0x310
[  358.962754]  ? syscall_return_slowpath+0x5e0/0x5e0
[  358.967687]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.972526]  ? trace_hardirqs_on_caller+0x310/0x310
[  358.977549]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  358.983000]  ? prepare_exit_to_usermode+0x291/0x3b0
[  358.988016]  ? page_fault+0x8/0x30
[  358.991557]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.996400]  ? page_fault+0x8/0x30
[  358.999934]  page_fault+0x1e/0x30
[  359.003377] RIP: 0033:0x404068
[  359.006582] Code: Bad RIP value.
[  359.009939] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  359.015295] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  359.022555] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  359.029824] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  359.037087] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  359.044360] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  359.051645] warn_alloc_show_mem: 1 callbacks suppressed
[  359.051655] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  359.051656] Mem-Info:
[  359.051686] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  359.051686]  active_file:13 inactive_file:13 isolated_file:0
[  359.051686]  unevictable:0 dirty:0 writeback:0 unstable:0
[  359.051686]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  359.051686]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  359.051686]  free:13747 free_pcp:348 free_cma:0
[  359.057013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  359.057020] Call Trace:
[  359.064719] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  359.067111]  <IRQ>
[  359.100138] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  359.109494]  dump_stack+0x244/0x39d
[  359.112040] lowmem_reserve[]: 0 2818 6321 6321
[  359.139883]  ? dump_stack_print_info.cold.1+0x20/0x20
[  359.142005] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  359.168209]  warn_alloc.cold.116+0xb7/0x1bd
[  359.171792] lowmem_reserve[]: 0 0 3503 3503
[  359.176367]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  359.181533] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  359.209023]  ? lock_downgrade+0x900/0x900
[  359.213407] lowmem_reserve[]: 0 0 0 0
[  359.217737]  ? trace_hardirqs_off+0xb8/0x310
[  359.222545] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  359.251690]  ? trace_hardirqs_off+0xb8/0x310
[  359.255806] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  359.259605]  __alloc_pages_slowpath+0x26e8/0x2e10
[  359.263979] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  359.277535]  ? warn_alloc+0x120/0x120
[  359.281901] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  359.296814]  ? print_usage_bug+0xc0/0xc0
[  359.301652] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  359.316805]  ? warn_alloc+0x120/0x120
[  359.320577] 4484 total pagecache pages
[  359.329510]  ? warn_alloc+0x120/0x120
[  359.333552] 0 pages in swap cache
[  359.342105]  ? print_usage_bug+0xc0/0xc0
[  359.345882] Swap cache stats: add 0, delete 0, find 0/0
[  359.349758]  ? kvm_clock_read+0x18/0x30
[  359.353526] Free swap  = 0kB
[  359.356967]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  359.360996] Total swap = 0kB
[  359.366349]  ? print_usage_bug+0xc0/0xc0
[  359.370295] 1965979 pages RAM
[  359.373299]  ? __lock_acquire+0x62f/0x4c20
[  359.378282] 0 pages HighMem/MovableOnly
[  359.378289] 342854 pages reserved
[  359.381295]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  359.385337] 0 pages cma reserved
[  359.388428]  ? should_fail+0x22d/0xd01
[  359.388443]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  359.392705] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  359.396610]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  359.400113] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  359.405560]  ? __lock_acquire+0x62f/0x4c20
[  359.408896] syz-fuzzer cpuset=/ mems_allowed=0
[  359.412774]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  359.453655]  ? __lock_acquire+0x62f/0x4c20
[  359.457880]  ? should_fail+0x22d/0xd01
[  359.461763]  ? rcu_irq_exit+0x1a2/0x390
[  359.465741]  ? mark_held_locks+0x130/0x130
[  359.469985]  ? mark_held_locks+0x130/0x130
[  359.474219]  ? mark_held_locks+0xc7/0x130
[  359.478373]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  359.483388]  ? zap_class+0x640/0x640
[  359.487098]  ? print_usage_bug+0xc0/0xc0
[  359.491156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.496691]  ? check_preemption_disabled+0x48/0x280
[  359.501710]  ? __lock_is_held+0xb5/0x140
[  359.505779]  __alloc_pages_nodemask+0xa80/0xde0
[  359.510540]  ? zap_class+0x640/0x640
[  359.514252]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  359.519277]  ? find_held_lock+0x36/0x1c0
[  359.523343]  ? ____cache_alloc_node+0x1c7/0x1e0
[  359.528023]  ? lock_downgrade+0x900/0x900
[  359.532192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.537740]  cache_grow_begin+0xa5/0x8c0
[  359.541797]  ? do_raw_spin_unlock+0xa7/0x330
[  359.546208]  fallback_alloc+0x204/0x2e0
[  359.550181]  ____cache_alloc_node+0x1c7/0x1e0
[  359.554679]  kmem_cache_alloc_node+0xe3/0x730
[  359.559174]  ? ipv6_get_ifaddr+0x42e/0x620
[  359.563418]  __alloc_skb+0x119/0x770
[  359.567125]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  359.572400]  ? netdev_alloc_frag+0x1f0/0x1f0
[  359.576802]  ? lock_downgrade+0x900/0x900
[  359.580956]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.586488]  ? refcount_sub_and_test_checked+0x203/0x310
[  359.591950]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  359.597397]  ? addrconf_rs_timer+0x690/0x690
[  359.601832]  ndisc_alloc_skb+0x144/0x340
[  359.605892]  ndisc_send_rs+0x331/0x6e0
[  359.609787]  addrconf_rs_timer+0x314/0x690
[  359.614020]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.618258]  call_timer_fn+0x272/0x920
[  359.622226]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.626457]  ? process_timeout+0x40/0x40
[  359.630523]  ? __run_timers+0x7da/0xc70
[  359.634497]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.638986]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.643476]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.647711]  ? lockdep_hardirqs_on+0x296/0x5b0
[  359.652291]  ? trace_hardirqs_on+0xbd/0x310
[  359.656612]  ? kasan_check_read+0x11/0x20
[  359.660753]  ? __run_timers+0x7da/0xc70
[  359.664725]  ? trace_hardirqs_off_caller+0x310/0x310
[  359.669921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.674160]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.678392]  __run_timers+0x7e5/0xc70
[  359.682201]  ? timer_fixup_init+0x70/0x70
[  359.686355]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  359.691375]  ? zap_class+0x640/0x640
[  359.695087]  ? enqueue_hrtimer+0x1a5/0x560
[  359.699321]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  359.704529]  ? find_held_lock+0x36/0x1c0
[  359.708594]  ? zap_class+0x640/0x640
[  359.712306]  ? pvclock_read_flags+0x160/0x160
[  359.716810]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.722351]  ? check_preemption_disabled+0x48/0x280
[  359.727380]  ? __lock_is_held+0xb5/0x140
[  359.731436]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.736969]  ? check_preemption_disabled+0x48/0x280
[  359.741990]  run_timer_softirq+0x52/0xb0
[  359.746050]  ? rcu_read_lock_sched_held+0x14f/0x180
[  359.751065]  __do_softirq+0x308/0xb7e
[  359.754865]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  359.759362]  ? lock_downgrade+0x900/0x900
[  359.763513]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  359.768617]  ? pvclock_read_flags+0x160/0x160
[  359.773112]  ? lapic_next_event+0x5a/0x90
[  359.777256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.782797]  ? kvm_clock_read+0x18/0x30
[  359.786768]  ? kvm_sched_clock_read+0x9/0x20
[  359.791175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.796717]  ? check_preemption_disabled+0x48/0x280
[  359.801736]  irq_exit+0x17f/0x1c0
[  359.805182]  smp_apic_timer_interrupt+0x1cb/0x760
[  359.810020]  ? smp_reschedule_interrupt+0x109/0x650
[  359.815030]  ? smp_call_function_single_interrupt+0x650/0x650
[  359.820911]  ? interrupt_entry+0xb5/0xc0
[  359.824969]  ? trace_hardirqs_off_caller+0xbb/0x310
[  359.829982]  ? trace_hardirqs_off_caller+0xbb/0x310
[  359.834995]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  359.839839]  ? trace_hardirqs_on_caller+0x310/0x310
[  359.844871]  ? trace_hardirqs_on_caller+0x310/0x310
[  359.849903]  ? task_prio+0x50/0x50
[  359.853438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.859009]  ? check_preemption_disabled+0x48/0x280
[  359.864025]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  359.868870]  apic_timer_interrupt+0xf/0x20
[  359.873100]  </IRQ>
[  359.875340] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  359.880284] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  359.899176] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  359.906880] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  359.914141] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  359.921403] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  359.928667] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  359.935930] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  359.943231]  skb_clone+0x1bb/0x500
[  359.946769]  ? finish_task_switch+0x2f4/0x910
[  359.951262]  ? skb_split+0x11e0/0x11e0
[  359.955144]  ? preempt_notifier_register+0x200/0x200
[  359.960261]  ? __switch_to_asm+0x34/0x70
[  359.964324]  ? __switch_to_asm+0x34/0x70
[  359.968378]  ? __switch_to_asm+0x40/0x70
[  359.972430]  ? __switch_to_asm+0x34/0x70
[  359.976481]  ? __switch_to_asm+0x40/0x70
[  359.980553]  ? __switch_to_asm+0x34/0x70
[  359.984610]  ? __switch_to_asm+0x40/0x70
[  359.989796]  ? __switch_to_asm+0x34/0x70
[  359.993857]  ? __switch_to_asm+0x34/0x70
[  359.997914]  ? __switch_to_asm+0x40/0x70
[  360.001965]  ? __switch_to_asm+0x34/0x70
[  360.006037]  bpf_clone_redirect+0xb9/0x490
[  360.010271]  ? __schedule+0x8d7/0x21d0
[  360.014158]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  360.019169]  ? __sched_text_start+0x8/0x8
[  360.023309]  ? retint_kernel+0x2d/0x2d
[  360.027211]  ? find_held_lock+0x36/0x1c0
[  360.031275]  ? lock_acquire+0x1ed/0x520
[  360.035246]  ? bpf_test_run+0x3cb/0x780
[  360.039214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.044744]  ? check_preemption_disabled+0x48/0x280
[  360.049770]  ? kasan_check_read+0x11/0x20
[  360.053910]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.059184]  ? rcu_softirq_qs+0x20/0x20
[  360.063158]  ? preempt_schedule+0x4d/0x60
[  360.067302]  ? ___preempt_schedule+0x16/0x18
[  360.071725]  ? bpf_test_run+0x25d/0x780
[  360.075707]  ? netlink_diag_dump+0x2a0/0x2a0
[  360.080112]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.085644]  ? bpf_test_init.isra.10+0x70/0x100
[  360.090328]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  360.095091]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  360.099947]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  360.105476]  ? fput+0x130/0x1a0
[  360.108754]  ? __bpf_prog_get+0x9b/0x290
[  360.112813]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  360.117648]  ? bpf_prog_test_run+0x130/0x1a0
[  360.122058]  ? __x64_sys_bpf+0x3d8/0x520
[  360.126112]  ? bpf_prog_get+0x20/0x20
[  360.129923]  ? do_syscall_64+0x1b9/0x820
[  360.133976]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  360.139347]  ? syscall_return_slowpath+0x5e0/0x5e0
[  360.144308]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.149158]  ? trace_hardirqs_on_caller+0x310/0x310
[  360.154169]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  360.159182]  ? prepare_exit_to_usermode+0x291/0x3b0
[  360.164200]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.169055]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  360.174427] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  360.174487] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  360.181434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  360.181439] Call Trace:
[  360.181444]  <IRQ>
[  360.181461]  dump_stack+0x244/0x39d
[  360.181479]  ? dump_stack_print_info.cold.1+0x20/0x20
[  360.188022] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  360.197295]  warn_alloc.cold.116+0xb7/0x1bd
[  360.199855] syz-executor2 cpuset=syz2 mems_allowed=0
[  360.201988]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  360.235471]  ? lock_downgrade+0x900/0x900
[  360.239716]  ? trace_hardirqs_off+0xb8/0x310
[  360.244124]  ? trace_hardirqs_off+0xb8/0x310
[  360.248536]  __alloc_pages_slowpath+0x26e8/0x2e10
[  360.253409]  ? warn_alloc+0x120/0x120
[  360.257205]  ? print_usage_bug+0xc0/0xc0
[  360.261262]  ? warn_alloc+0x120/0x120
[  360.265120]  ? warn_alloc+0x120/0x120
[  360.268916]  ? print_usage_bug+0xc0/0xc0
[  360.272972]  ? kvm_clock_read+0x18/0x30
[  360.276943]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  360.281956]  ? print_usage_bug+0xc0/0xc0
[  360.286011]  ? __lock_acquire+0x62f/0x4c20
[  360.290245]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.295790]  ? should_fail+0x22d/0xd01
[  360.299671]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.304945]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  360.310045]  ? __lock_acquire+0x62f/0x4c20
[  360.314276]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  360.319484]  ? __lock_acquire+0x62f/0x4c20
[  360.323711]  ? should_fail+0x22d/0xd01
[  360.327593]  ? rcu_irq_exit+0x1a2/0x390
[  360.331570]  ? mark_held_locks+0x130/0x130
[  360.335808]  ? mark_held_locks+0x130/0x130
[  360.340043]  ? mark_held_locks+0xc7/0x130
[  360.344204]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  360.349228]  ? zap_class+0x640/0x640
[  360.352936]  ? print_usage_bug+0xc0/0xc0
[  360.356991]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.362522]  ? check_preemption_disabled+0x48/0x280
[  360.367543]  ? __lock_is_held+0xb5/0x140
[  360.371605]  __alloc_pages_nodemask+0xa80/0xde0
[  360.376267]  ? zap_class+0x640/0x640
[  360.379991]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  360.385012]  ? find_held_lock+0x36/0x1c0
[  360.389078]  ? ____cache_alloc_node+0x1c7/0x1e0
[  360.393752]  ? lock_downgrade+0x900/0x900
[  360.397900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.403439]  cache_grow_begin+0xa5/0x8c0
[  360.407493]  ? do_raw_spin_unlock+0xa7/0x330
[  360.411917]  fallback_alloc+0x204/0x2e0
[  360.415896]  ____cache_alloc_node+0x1c7/0x1e0
[  360.420396]  kmem_cache_alloc_node+0xe3/0x730
[  360.424887]  ? ipv6_get_ifaddr+0x42e/0x620
[  360.429140]  __alloc_skb+0x119/0x770
[  360.432851]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.438129]  ? netdev_alloc_frag+0x1f0/0x1f0
[  360.442532]  ? lock_downgrade+0x900/0x900
[  360.446685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.452234]  ? refcount_sub_and_test_checked+0x203/0x310
[  360.457712]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  360.463214]  ? addrconf_rs_timer+0x690/0x690
[  360.467629]  ndisc_alloc_skb+0x144/0x340
[  360.471708]  ndisc_send_rs+0x331/0x6e0
[  360.475618]  addrconf_rs_timer+0x314/0x690
[  360.479858]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.484183]  call_timer_fn+0x272/0x920
[  360.488066]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.492300]  ? process_timeout+0x40/0x40
[  360.496372]  ? mark_held_locks+0xc7/0x130
[  360.500517]  ? _raw_spin_unlock_irq+0x27/0x80
[  360.505005]  ? _raw_spin_unlock_irq+0x27/0x80
[  360.509493]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.513722]  ? lockdep_hardirqs_on+0x296/0x5b0
[  360.518317]  ? trace_hardirqs_on+0xbd/0x310
[  360.522635]  ? kasan_check_read+0x11/0x20
[  360.526775]  ? __run_timers+0x7da/0xc70
[  360.530747]  ? trace_hardirqs_off_caller+0x310/0x310
[  360.535872]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.540110]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.544346]  __run_timers+0x7e5/0xc70
[  360.548152]  ? timer_fixup_init+0x70/0x70
[  360.552307]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  360.557325]  ? zap_class+0x640/0x640
[  360.561041]  ? print_usage_bug+0xc0/0xc0
[  360.565099]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  360.570297]  ? find_held_lock+0x36/0x1c0
[  360.574359]  ? zap_class+0x640/0x640
[  360.578069]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.583721]  ? check_preemption_disabled+0x48/0x280
[  360.588849]  ? __lock_is_held+0xb5/0x140
[  360.592924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.598473]  ? check_preemption_disabled+0x48/0x280
[  360.603492]  run_timer_softirq+0x52/0xb0
[  360.607553]  ? rcu_read_lock_sched_held+0x14f/0x180
[  360.612567]  __do_softirq+0x308/0xb7e
[  360.616370]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  360.620859]  ? lock_downgrade+0x900/0x900
[  360.625003]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  360.630106]  ? pvclock_read_flags+0x160/0x160
[  360.634596]  ? lapic_next_event+0x5a/0x90
[  360.638741]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.644286]  ? kvm_clock_read+0x18/0x30
[  360.648258]  ? kvm_sched_clock_read+0x9/0x20
[  360.652676]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.658212]  ? check_preemption_disabled+0x48/0x280
[  360.663240]  irq_exit+0x17f/0x1c0
[  360.666801]  smp_apic_timer_interrupt+0x1cb/0x760
[  360.671643]  ? smp_call_function_single_interrupt+0x650/0x650
[  360.677522]  ? interrupt_entry+0xb5/0xc0
[  360.681577]  ? trace_hardirqs_off_caller+0xbb/0x310
[  360.686592]  ? trace_hardirqs_off_caller+0xbb/0x310
[  360.691602]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.696443]  ? trace_hardirqs_on_caller+0x310/0x310
[  360.701455]  ? trace_hardirqs_on_caller+0x310/0x310
[  360.706465]  ? task_prio+0x50/0x50
[  360.710000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.715536]  ? check_preemption_disabled+0x48/0x280
[  360.720640]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.725485]  apic_timer_interrupt+0xf/0x20
[  360.729710]  </IRQ>
[  360.731947] RIP: 0010:dump_stack+0x358/0x39d
[  360.736353] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  360.755249] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  360.763062] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  360.770509] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  360.777770] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  360.785030] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  360.792290] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  360.799574]  ? dump_stack+0x34f/0x39d
[  360.803379]  ? dump_stack_print_info.cold.1+0x20/0x20
[  360.808570]  ? mark_held_locks+0x130/0x130
[  360.812799]  ? mark_held_locks+0x130/0x130
[  360.817045]  dump_header+0x27b/0xf72
[  360.820764]  ? pagefault_out_of_memory+0x197/0x197
[  360.825699]  ? __lock_acquire+0x62f/0x4c20
[  360.829928]  ? percpu_ref_get_many+0x240/0x240
[  360.834505]  ? print_usage_bug+0xc0/0xc0
[  360.838565]  ? zap_class+0x640/0x640
[  360.842286]  ? print_usage_bug+0xc0/0xc0
[  360.846355]  ? print_usage_bug+0xc0/0xc0
[  360.850413]  ? zap_class+0x640/0x640
[  360.854128]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.859662]  ? find_held_lock+0x36/0x1c0
[  360.863727]  ? mark_held_locks+0xc7/0x130
[  360.867873]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  360.872969]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  360.878066]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  360.882643]  ? trace_hardirqs_on+0xbd/0x310
[  360.886957]  ? kasan_check_read+0x11/0x20
[  360.891235]  ? ___ratelimit+0x3b4/0x672
[  360.895306]  ? trace_hardirqs_off_caller+0x310/0x310
[  360.900847]  ? trace_hardirqs_on+0x310/0x310
[  360.905262]  ? lock_downgrade+0x900/0x900
[  360.909503]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  360.914615]  ? ___ratelimit+0x3b9/0x672
[  360.918609]  ? idr_get_free+0xf70/0xf70
[  360.922578]  ? find_held_lock+0x36/0x1c0
[  360.926644]  oom_kill_process.cold.27+0x10/0x903
[  360.931428]  ? zap_class+0x640/0x640
[  360.935141]  ? check_preemption_disabled+0x48/0x280
[  360.940155]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  360.945091]  ? kasan_check_read+0x11/0x20
[  360.949232]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.954516]  ? oom_evaluate_task+0x540/0x540
[  360.958926]  ? find_held_lock+0x36/0x1c0
[  360.962992]  ? out_of_memory+0x974/0x1430
[  360.967135]  ? lock_downgrade+0x900/0x900
[  360.971281]  ? check_preemption_disabled+0x48/0x280
[  360.976305]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  360.981227]  ? kasan_check_read+0x11/0x20
[  360.985386]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.990663]  ? rcu_softirq_qs+0x20/0x20
[  360.994636]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.000172]  ? oom_evaluate_task+0x302/0x540
[  361.004584]  out_of_memory+0xa84/0x1430
[  361.008565]  ? oom_killer_disable+0x3a0/0x3a0
[  361.013088]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  361.018040]  ? __ww_mutex_check_waiters+0x160/0x160
[  361.023061]  __alloc_pages_slowpath+0x2354/0x2e10
[  361.027928]  ? warn_alloc+0x120/0x120
[  361.031726]  ? mark_held_locks+0x130/0x130
[  361.035959]  ? find_get_entry+0xaae/0x1120
[  361.040220]  ? filemap_map_pages+0x1a20/0x1a20
[  361.044810]  ? zap_class+0x640/0x640
[  361.048528]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.054059]  ? check_preemption_disabled+0x48/0x280
[  361.059083]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.064929]  ? should_fail+0x22d/0xd01
[  361.068817]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.073929]  ? zap_class+0x640/0x640
[  361.077661]  ? __lock_is_held+0xb5/0x140
[  361.081748]  ? mark_held_locks+0x130/0x130
[  361.085980]  ? lock_release+0xa00/0xa00
[  361.089948]  ? perf_trace_sched_process_exec+0x860/0x860
[  361.095398]  ? xa_load+0x2ba/0x460
[  361.098933]  ? lock_downgrade+0x900/0x900
[  361.103079]  ? __might_sleep+0x95/0x190
[  361.107058]  __alloc_pages_nodemask+0xa80/0xde0
[  361.111728]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  361.116764]  ? __page_cache_alloc+0x191/0x5c0
[  361.121258]  ? xa_load+0x2e1/0x460
[  361.124815]  ? xa_clear_mark+0x40/0x40
[  361.128703]  ? zap_class+0x640/0x640
[  361.132420]  ? zap_class+0x640/0x640
[  361.136128]  ? zap_class+0x640/0x640
[  361.139835]  ? __do_page_cache_readahead+0x663/0x810
[  361.144935]  ? find_held_lock+0x36/0x1c0
[  361.148995]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  361.154535]  alloc_pages_current+0x173/0x350
[  361.158947]  __page_cache_alloc+0x38c/0x5c0
[  361.163261]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  361.168192]  ? kasan_check_read+0x11/0x20
[  361.172342]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  361.177616]  ? generic_perform_write+0x6a0/0x6a0
[  361.182366]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.187897]  ? check_preemption_disabled+0x48/0x280
[  361.192916]  filemap_fault+0x1595/0x25f0
[  361.196981]  ? __lock_page_or_retry+0xa00/0xa00
[  361.201663]  ? mark_held_locks+0x130/0x130
[  361.205904]  ? filemap_map_pages+0xd6b/0x1a20
[  361.210395]  ? lock_downgrade+0x900/0x900
[  361.214557]  ? check_preemption_disabled+0x48/0x280
[  361.219571]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  361.224496]  ? kasan_check_read+0x11/0x20
[  361.228638]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  361.233909]  ? rcu_softirq_qs+0x20/0x20
[  361.237887]  ? filemap_map_pages+0xd92/0x1a20
[  361.242393]  ? find_get_entries_tag+0x1400/0x1400
[  361.247246]  ? find_held_lock+0x36/0x1c0
[  361.251329]  ? lock_acquire+0x1ed/0x520
[  361.255298]  ? ext4_filemap_fault+0x7a/0xad
[  361.259620]  ? lock_release+0xa00/0xa00
[  361.263587]  ? perf_trace_sched_process_exec+0x860/0x860
[  361.269036]  ? print_usage_bug+0xc0/0xc0
[  361.273107]  ? down_read+0x8d/0x120
[  361.276729]  ? ext4_filemap_fault+0x7a/0xad
[  361.281045]  ? __down_interruptible+0x700/0x700
[  361.285708]  ? find_held_lock+0x36/0x1c0
[  361.289767]  ext4_filemap_fault+0x82/0xad
[  361.293921]  __do_fault+0x100/0x6b0
[  361.297547]  ? lock_downgrade+0x900/0x900
[  361.301689]  ? pmd_devmap_trans_unstable+0x220/0x220
[  361.306792]  ? kasan_check_read+0x11/0x20
[  361.310934]  ? do_raw_spin_unlock+0xa7/0x330
[  361.315338]  ? do_raw_spin_trylock+0x270/0x270
[  361.319928]  __handle_mm_fault+0x3ea0/0x5be0
[  361.324336]  ? perf_trace_lock+0x7a0/0x7a0
[  361.328577]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  361.333438]  ? __switch_to_asm+0x34/0x70
[  361.337495]  ? __switch_to_asm+0x34/0x70
[  361.341562]  ? zap_class+0x640/0x640
[  361.345275]  ? zap_class+0x640/0x640
[  361.348984]  ? __x64_sys_futex+0x53e/0x6a0
[  361.353236]  ? find_held_lock+0x36/0x1c0
[  361.357304]  ? handle_mm_fault+0x42a/0xc70
[  361.361538]  ? lock_downgrade+0x900/0x900
[  361.365679]  ? check_preemption_disabled+0x48/0x280
[  361.370695]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  361.375621]  ? kasan_check_read+0x11/0x20
[  361.379763]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  361.385036]  ? rcu_softirq_qs+0x20/0x20
[  361.389010]  ? trace_hardirqs_off_caller+0x310/0x310
[  361.394111]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.399642]  ? check_preemption_disabled+0x48/0x280
[  361.404665]  handle_mm_fault+0x54f/0xc70
[  361.408724]  ? __handle_mm_fault+0x5be0/0x5be0
[  361.413307]  ? find_vma+0x34/0x190
[  361.416844]  __do_page_fault+0x5e8/0xe60
[  361.420896]  ? trace_hardirqs_off+0xb8/0x310
[  361.425335]  do_page_fault+0xf2/0x7e0
[  361.429143]  ? vmalloc_sync_all+0x30/0x30
[  361.433284]  ? error_entry+0x70/0xd0
[  361.437015]  ? trace_hardirqs_off_caller+0xbb/0x310
[  361.442024]  ? trace_hardirqs_on_caller+0xc0/0x310
[  361.446947]  ? syscall_return_slowpath+0x5e0/0x5e0
[  361.451875]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.456720]  ? trace_hardirqs_on_caller+0x310/0x310
[  361.461732]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  361.467185]  ? prepare_exit_to_usermode+0x291/0x3b0
[  361.472213]  ? page_fault+0x8/0x30
[  361.475755]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.480595]  ? page_fault+0x8/0x30
[  361.484131]  page_fault+0x1e/0x30
[  361.487579] RIP: 0033:0x404068
[  361.490781] Code: Bad RIP value.
[  361.494137] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  361.499492] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  361.506752] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  361.514015] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  361.521458] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  361.528719] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  361.536003] warn_alloc_show_mem: 1 callbacks suppressed
[  361.536012] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  361.536014] Mem-Info:
[  361.536043] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  361.536043]  active_file:13 inactive_file:13 isolated_file:0
[  361.536043]  unevictable:0 dirty:0 writeback:0 unstable:0
[  361.536043]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  361.536043]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  361.536043]  free:13747 free_pcp:348 free_cma:0
[  361.541461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  361.548820] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  361.551215] Call Trace:
[  361.584246] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  361.593599]  <IRQ>
[  361.621418] lowmem_reserve[]: 0 2818 6321 6321
[  361.623996]  dump_stack+0x244/0x39d
[  361.650069] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  361.652219]  ? dump_stack_print_info.cold.1+0x20/0x20
[  361.656768] lowmem_reserve[]: 0 0 3503 3503
[  361.660395]  warn_alloc.cold.116+0xb7/0x1bd
[  361.687854] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  361.693143]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  361.697436] lowmem_reserve[]: 0 0 0 0
[  361.701761]  ? lock_downgrade+0x900/0x900
[  361.730878] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  361.735716]  ? trace_hardirqs_off+0xb8/0x310
[  361.739483] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  361.743625]  ? trace_hardirqs_off+0xb8/0x310
[  361.757115] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  361.761518]  __alloc_pages_slowpath+0x26e8/0x2e10
[  361.776402] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  361.780817]  ? warn_alloc+0x120/0x120
[  361.795955] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  361.800788]  ? print_usage_bug+0xc0/0xc0
[  361.809605] 4484 total pagecache pages
[  361.813393]  ? warn_alloc+0x120/0x120
[  361.822033] 0 pages in swap cache
[  361.826077]  ? warn_alloc+0x120/0x120
[  361.830027] Swap cache stats: add 0, delete 0, find 0/0
[  361.833823]  ? print_usage_bug+0xc0/0xc0
[  361.837250] Free swap  = 0kB
[  361.841038]  ? kvm_clock_read+0x18/0x30
[  361.846373] Total swap = 0kB
[  361.850432]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  361.853422] 1965979 pages RAM
[  361.857383]  ? print_usage_bug+0xc0/0xc0
[  361.860370] 0 pages HighMem/MovableOnly
[  361.860378] 342854 pages reserved
[  361.865381]  ? __lock_acquire+0x62f/0x4c20
[  361.868456] 0 pages cma reserved
[  361.872510]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.876520] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  361.879904]  ? should_fail+0x22d/0xd01
[  361.879917]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  361.879934]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.884205] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  361.887506]  ? __lock_acquire+0x62f/0x4c20
[  361.893013] syz-fuzzer cpuset=/ mems_allowed=0
[  361.899492]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.937794]  ? __lock_acquire+0x62f/0x4c20
[  361.942130]  ? should_fail+0x22d/0xd01
[  361.946020]  ? rcu_irq_exit+0x1a2/0x390
[  361.950003]  ? mark_held_locks+0x130/0x130
[  361.954237]  ? mark_held_locks+0x130/0x130
[  361.958472]  ? mark_held_locks+0xc7/0x130
[  361.962627]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  361.967656]  ? zap_class+0x640/0x640
[  361.971367]  ? print_usage_bug+0xc0/0xc0
[  361.975428]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.980965]  ? check_preemption_disabled+0x48/0x280
[  361.985985]  ? __lock_is_held+0xb5/0x140
[  361.990046]  __alloc_pages_nodemask+0xa80/0xde0
[  361.994718]  ? zap_class+0x640/0x640
[  361.998439]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  362.003464]  ? find_held_lock+0x36/0x1c0
[  362.007529]  ? ____cache_alloc_node+0x1c7/0x1e0
[  362.012198]  ? lock_downgrade+0x900/0x900
[  362.016358]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.021893]  cache_grow_begin+0xa5/0x8c0
[  362.025950]  ? do_raw_spin_unlock+0xa7/0x330
[  362.030361]  fallback_alloc+0x204/0x2e0
[  362.034335]  ____cache_alloc_node+0x1c7/0x1e0
[  362.038828]  kmem_cache_alloc_node+0xe3/0x730
[  362.043321]  ? ipv6_get_ifaddr+0x42e/0x620
[  362.047647]  __alloc_skb+0x119/0x770
[  362.051376]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.056830]  ? netdev_alloc_frag+0x1f0/0x1f0
[  362.061233]  ? lock_downgrade+0x900/0x900
[  362.065382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.070913]  ? refcount_sub_and_test_checked+0x203/0x310
[  362.076363]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  362.081806]  ? addrconf_rs_timer+0x690/0x690
[  362.086220]  ndisc_alloc_skb+0x144/0x340
[  362.090282]  ndisc_send_rs+0x331/0x6e0
[  362.094192]  addrconf_rs_timer+0x314/0x690
[  362.098438]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.102692]  call_timer_fn+0x272/0x920
[  362.106667]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.110898]  ? process_timeout+0x40/0x40
[  362.114959]  ? __run_timers+0x7da/0xc70
[  362.118928]  ? _raw_spin_unlock_irq+0x27/0x80
[  362.123420]  ? _raw_spin_unlock_irq+0x27/0x80
[  362.127907]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.132135]  ? lockdep_hardirqs_on+0x296/0x5b0
[  362.136810]  ? trace_hardirqs_on+0xbd/0x310
[  362.141129]  ? kasan_check_read+0x11/0x20
[  362.145281]  ? __run_timers+0x7da/0xc70
[  362.149255]  ? trace_hardirqs_off_caller+0x310/0x310
[  362.154353]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.158585]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.162817]  __run_timers+0x7e5/0xc70
[  362.166624]  ? timer_fixup_init+0x70/0x70
[  362.170789]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  362.175800]  ? zap_class+0x640/0x640
[  362.179514]  ? enqueue_hrtimer+0x1a5/0x560
[  362.183744]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  362.189051]  ? find_held_lock+0x36/0x1c0
[  362.193111]  ? zap_class+0x640/0x640
[  362.196829]  ? pvclock_read_flags+0x160/0x160
[  362.201340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.206872]  ? check_preemption_disabled+0x48/0x280
[  362.211892]  ? __lock_is_held+0xb5/0x140
[  362.215952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.221484]  ? check_preemption_disabled+0x48/0x280
[  362.226502]  run_timer_softirq+0x52/0xb0
[  362.230561]  ? rcu_read_lock_sched_held+0x14f/0x180
[  362.235585]  __do_softirq+0x308/0xb7e
[  362.239395]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  362.243886]  ? lock_downgrade+0x900/0x900
[  362.248034]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  362.253152]  ? pvclock_read_flags+0x160/0x160
[  362.257644]  ? lapic_next_event+0x5a/0x90
[  362.261788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.267327]  ? kvm_clock_read+0x18/0x30
[  362.271294]  ? kvm_sched_clock_read+0x9/0x20
[  362.275706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.281240]  ? check_preemption_disabled+0x48/0x280
[  362.286260]  irq_exit+0x17f/0x1c0
[  362.289709]  smp_apic_timer_interrupt+0x1cb/0x760
[  362.294546]  ? smp_reschedule_interrupt+0x109/0x650
[  362.299556]  ? smp_call_function_single_interrupt+0x650/0x650
[  362.305531]  ? interrupt_entry+0xb5/0xc0
[  362.309590]  ? trace_hardirqs_off_caller+0xbb/0x310
[  362.314597]  ? trace_hardirqs_off_caller+0xbb/0x310
[  362.319609]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.324467]  ? trace_hardirqs_on_caller+0x310/0x310
[  362.329476]  ? trace_hardirqs_on_caller+0x310/0x310
[  362.334495]  ? task_prio+0x50/0x50
[  362.338027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.343556]  ? check_preemption_disabled+0x48/0x280
[  362.348573]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.353416]  apic_timer_interrupt+0xf/0x20
[  362.357656]  </IRQ>
[  362.359891] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  362.364814] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  362.383706] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  362.391517] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  362.398779] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  362.406043] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  362.413308] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  362.420571] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  362.427868]  skb_clone+0x1bb/0x500
[  362.431409]  ? finish_task_switch+0x2f4/0x910
[  362.435903]  ? skb_split+0x11e0/0x11e0
[  362.439786]  ? preempt_notifier_register+0x200/0x200
[  362.444881]  ? __switch_to_asm+0x34/0x70
[  362.448935]  ? __switch_to_asm+0x34/0x70
[  362.452988]  ? __switch_to_asm+0x40/0x70
[  362.457041]  ? __switch_to_asm+0x34/0x70
[  362.461092]  ? __switch_to_asm+0x40/0x70
[  362.465170]  ? __switch_to_asm+0x34/0x70
[  362.469227]  ? __switch_to_asm+0x40/0x70
[  362.473285]  ? __switch_to_asm+0x34/0x70
[  362.477343]  ? __switch_to_asm+0x34/0x70
[  362.481396]  ? __switch_to_asm+0x40/0x70
[  362.485449]  ? __switch_to_asm+0x34/0x70
[  362.489510]  bpf_clone_redirect+0xb9/0x490
[  362.493744]  ? __schedule+0x8d7/0x21d0
[  362.497632]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  362.502651]  ? __sched_text_start+0x8/0x8
[  362.506801]  ? retint_kernel+0x2d/0x2d
[  362.510696]  ? find_held_lock+0x36/0x1c0
[  362.514762]  ? lock_acquire+0x1ed/0x520
[  362.518732]  ? bpf_test_run+0x3cb/0x780
[  362.522703]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.528240]  ? check_preemption_disabled+0x48/0x280
[  362.533257]  ? kasan_check_read+0x11/0x20
[  362.537402]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.542676]  ? rcu_softirq_qs+0x20/0x20
[  362.546650]  ? preempt_schedule+0x4d/0x60
[  362.550798]  ? ___preempt_schedule+0x16/0x18
[  362.555212]  ? bpf_test_run+0x25d/0x780
[  362.559197]  ? netlink_diag_dump+0x2a0/0x2a0
[  362.563603]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.569143]  ? bpf_test_init.isra.10+0x70/0x100
[  362.573814]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  362.578581]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  362.583424]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  362.588957]  ? fput+0x130/0x1a0
[  362.592236]  ? __bpf_prog_get+0x9b/0x290
[  362.596300]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  362.601143]  ? bpf_prog_test_run+0x130/0x1a0
[  362.605554]  ? __x64_sys_bpf+0x3d8/0x520
[  362.609614]  ? bpf_prog_get+0x20/0x20
[  362.613434]  ? do_syscall_64+0x1b9/0x820
[  362.617489]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  362.622851]  ? syscall_return_slowpath+0x5e0/0x5e0
[  362.627780]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.632621]  ? trace_hardirqs_on_caller+0x310/0x310
[  362.637639]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  362.642668]  ? prepare_exit_to_usermode+0x291/0x3b0
[  362.647690]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.652536]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  362.657909] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  362.657973] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  362.664914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  362.664921] Call Trace:
[  362.671475] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  362.680730]  <IRQ>
[  362.683322] syz-executor2 cpuset=syz2 mems_allowed=0
[  362.693796]  dump_stack+0x244/0x39d
[  362.704622]  ? dump_stack_print_info.cold.1+0x20/0x20
[  362.709817]  warn_alloc.cold.116+0xb7/0x1bd
[  362.714136]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  362.718984]  ? lock_downgrade+0x900/0x900
[  362.723140]  ? trace_hardirqs_off+0xb8/0x310
[  362.727554]  ? trace_hardirqs_off+0xb8/0x310
[  362.731973]  __alloc_pages_slowpath+0x26e8/0x2e10
[  362.736838]  ? warn_alloc+0x120/0x120
[  362.740649]  ? print_usage_bug+0xc0/0xc0
[  362.744710]  ? warn_alloc+0x120/0x120
[  362.748514]  ? warn_alloc+0x120/0x120
[  362.752312]  ? print_usage_bug+0xc0/0xc0
[  362.756373]  ? print_usage_bug+0xc0/0xc0
[  362.760432]  ? __lock_acquire+0x62f/0x4c20
[  362.764672]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.770222]  ? should_fail+0x22d/0xd01
[  362.774126]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  362.779229]  ? __lock_acquire+0x62f/0x4c20
[  362.783464]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  362.788564]  ? __lock_acquire+0x62f/0x4c20
[  362.792796]  ? should_fail+0x22d/0xd01
[  362.796680]  ? find_held_lock+0x36/0x1c0
[  362.800745]  ? mark_held_locks+0x130/0x130
[  362.805019]  ? mark_held_locks+0x130/0x130
[  362.809248]  ? zap_class+0x640/0x640
[  362.812953]  ? zap_class+0x640/0x640
[  362.816662]  ? print_usage_bug+0xc0/0xc0
[  362.820714]  ? do_raw_spin_unlock+0xa7/0x330
[  362.825120]  ? zap_class+0x640/0x640
[  362.828835]  ? print_usage_bug+0xc0/0xc0
[  362.832890]  ? wq_watchdog_touch+0x9c/0xfe
[  362.837124]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.842664]  ? check_preemption_disabled+0x48/0x280
[  362.847787]  ? __lock_is_held+0xb5/0x140
[  362.851847]  __alloc_pages_nodemask+0xa80/0xde0
[  362.856510]  ? zap_class+0x640/0x640
[  362.860224]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  362.865244]  ? find_held_lock+0x36/0x1c0
[  362.869310]  ? ____cache_alloc_node+0x1c7/0x1e0
[  362.873974]  ? lock_downgrade+0x900/0x900
[  362.878140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.883687]  cache_grow_begin+0xa5/0x8c0
[  362.887740]  ? do_raw_spin_unlock+0xa7/0x330
[  362.892159]  fallback_alloc+0x204/0x2e0
[  362.896619]  ____cache_alloc_node+0x1c7/0x1e0
[  362.901122]  kmem_cache_alloc_node+0xe3/0x730
[  362.905617]  ? ipv6_get_ifaddr+0x42e/0x620
[  362.909854]  __alloc_skb+0x119/0x770
[  362.913578]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.918859]  ? netdev_alloc_frag+0x1f0/0x1f0
[  362.923263]  ? lock_downgrade+0x900/0x900
[  362.927415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.932947]  ? refcount_sub_and_test_checked+0x203/0x310
[  362.938396]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  362.943842]  ? addrconf_rs_timer+0x690/0x690
[  362.948256]  ndisc_alloc_skb+0x144/0x340
[  362.952320]  ndisc_send_rs+0x331/0x6e0
[  362.956211]  addrconf_rs_timer+0x314/0x690
[  362.960447]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.964684]  call_timer_fn+0x272/0x920
[  362.968566]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.972798]  ? process_timeout+0x40/0x40
[  362.976869]  ? mark_held_locks+0xc7/0x130
[  362.981028]  ? _raw_spin_unlock_irq+0x27/0x80
[  362.985519]  ? _raw_spin_unlock_irq+0x27/0x80
[  362.990011]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  362.994242]  ? lockdep_hardirqs_on+0x296/0x5b0
[  362.998820]  ? trace_hardirqs_on+0xbd/0x310
[  363.003141]  ? kasan_check_read+0x11/0x20
[  363.007283]  ? __run_timers+0x7da/0xc70
[  363.011255]  ? trace_hardirqs_off_caller+0x310/0x310
[  363.016356]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.020590]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.024825]  __run_timers+0x7e5/0xc70
[  363.028758]  ? timer_fixup_init+0x70/0x70
[  363.032903]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  363.037913]  ? zap_class+0x640/0x640
[  363.041628]  ? print_usage_bug+0xc0/0xc0
[  363.045686]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  363.050875]  ? find_held_lock+0x36/0x1c0
[  363.054935]  ? zap_class+0x640/0x640
[  363.058648]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.064482]  ? check_preemption_disabled+0x48/0x280
[  363.069506]  ? __lock_is_held+0xb5/0x140
[  363.073567]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.079099]  ? check_preemption_disabled+0x48/0x280
[  363.084133]  run_timer_softirq+0x52/0xb0
[  363.088274]  ? rcu_read_lock_sched_held+0x14f/0x180
[  363.093291]  __do_softirq+0x308/0xb7e
[  363.097095]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  363.101585]  ? lock_downgrade+0x900/0x900
[  363.105731]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  363.110925]  ? pvclock_read_flags+0x160/0x160
[  363.115417]  ? lapic_next_event+0x5a/0x90
[  363.119560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.125103]  ? kvm_clock_read+0x18/0x30
[  363.129082]  ? kvm_sched_clock_read+0x9/0x20
[  363.133487]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.139022]  ? check_preemption_disabled+0x48/0x280
[  363.144054]  irq_exit+0x17f/0x1c0
[  363.147521]  smp_apic_timer_interrupt+0x1cb/0x760
[  363.152379]  ? smp_call_function_single_interrupt+0x650/0x650
[  363.158256]  ? interrupt_entry+0xb5/0xc0
[  363.162317]  ? trace_hardirqs_off_caller+0xbb/0x310
[  363.167431]  ? trace_hardirqs_off_caller+0xbb/0x310
[  363.172441]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.177283]  ? trace_hardirqs_on_caller+0x310/0x310
[  363.182404]  ? trace_hardirqs_on_caller+0x310/0x310
[  363.187415]  ? task_prio+0x50/0x50
[  363.190949]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.196478]  ? check_preemption_disabled+0x48/0x280
[  363.201498]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.206346]  apic_timer_interrupt+0xf/0x20
[  363.210567]  </IRQ>
[  363.212799] RIP: 0010:dump_stack+0x358/0x39d
[  363.217201] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  363.236095] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  363.243803] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  363.251084] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  363.258363] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  363.265623] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  363.272885] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  363.280178]  ? dump_stack+0x34f/0x39d
[  363.283988]  ? dump_stack_print_info.cold.1+0x20/0x20
[  363.289174]  ? mark_held_locks+0x130/0x130
[  363.293401]  ? mark_held_locks+0x130/0x130
[  363.297635]  dump_header+0x27b/0xf72
[  363.301353]  ? pagefault_out_of_memory+0x197/0x197
[  363.306287]  ? __lock_acquire+0x62f/0x4c20
[  363.310518]  ? percpu_ref_get_many+0x240/0x240
[  363.315097]  ? print_usage_bug+0xc0/0xc0
[  363.319163]  ? zap_class+0x640/0x640
[  363.322881]  ? print_usage_bug+0xc0/0xc0
[  363.326936]  ? print_usage_bug+0xc0/0xc0
[  363.330995]  ? zap_class+0x640/0x640
[  363.334706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.340240]  ? find_held_lock+0x36/0x1c0
[  363.344308]  ? mark_held_locks+0xc7/0x130
[  363.348452]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  363.353566]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  363.358690]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  363.363266]  ? trace_hardirqs_on+0xbd/0x310
[  363.367600]  ? kasan_check_read+0x11/0x20
[  363.371747]  ? ___ratelimit+0x3b4/0x672
[  363.375719]  ? trace_hardirqs_off_caller+0x310/0x310
[  363.380816]  ? trace_hardirqs_on+0x310/0x310
[  363.385222]  ? lock_downgrade+0x900/0x900
[  363.389388]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  363.394486]  ? ___ratelimit+0x3b9/0x672
[  363.398457]  ? idr_get_free+0xf70/0xf70
[  363.402424]  ? find_held_lock+0x36/0x1c0
[  363.406489]  oom_kill_process.cold.27+0x10/0x903
[  363.411243]  ? zap_class+0x640/0x640
[  363.414956]  ? check_preemption_disabled+0x48/0x280
[  363.419969]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  363.424913]  ? kasan_check_read+0x11/0x20
[  363.429072]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.434365]  ? oom_evaluate_task+0x540/0x540
[  363.438771]  ? find_held_lock+0x36/0x1c0
[  363.442832]  ? out_of_memory+0x974/0x1430
[  363.446976]  ? lock_downgrade+0x900/0x900
[  363.451129]  ? check_preemption_disabled+0x48/0x280
[  363.456148]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  363.461074]  ? kasan_check_read+0x11/0x20
[  363.465223]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.470505]  ? rcu_softirq_qs+0x20/0x20
[  363.474476]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.480013]  ? oom_evaluate_task+0x302/0x540
[  363.484429]  out_of_memory+0xa84/0x1430
[  363.488405]  ? oom_killer_disable+0x3a0/0x3a0
[  363.492893]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  363.497820]  ? __ww_mutex_check_waiters+0x160/0x160
[  363.502838]  __alloc_pages_slowpath+0x2354/0x2e10
[  363.507722]  ? warn_alloc+0x120/0x120
[  363.511514]  ? mark_held_locks+0x130/0x130
[  363.515750]  ? find_get_entry+0xaae/0x1120
[  363.519988]  ? filemap_map_pages+0x1a20/0x1a20
[  363.524576]  ? zap_class+0x640/0x640
[  363.528290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.533824]  ? check_preemption_disabled+0x48/0x280
[  363.538835]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.544380]  ? should_fail+0x22d/0xd01
[  363.548268]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  363.553367]  ? zap_class+0x640/0x640
[  363.557108]  ? __lock_is_held+0xb5/0x140
[  363.561176]  ? mark_held_locks+0x130/0x130
[  363.565407]  ? lock_release+0xa00/0xa00
[  363.569375]  ? perf_trace_sched_process_exec+0x860/0x860
[  363.574819]  ? xa_load+0x2ba/0x460
[  363.578359]  ? lock_downgrade+0x900/0x900
[  363.582505]  ? __might_sleep+0x95/0x190
[  363.586477]  __alloc_pages_nodemask+0xa80/0xde0
[  363.591277]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  363.596288]  ? __page_cache_alloc+0x191/0x5c0
[  363.600780]  ? xa_load+0x2e1/0x460
[  363.604314]  ? xa_clear_mark+0x40/0x40
[  363.608200]  ? zap_class+0x640/0x640
[  363.611930]  ? zap_class+0x640/0x640
[  363.615636]  ? zap_class+0x640/0x640
[  363.619343]  ? __do_page_cache_readahead+0x663/0x810
[  363.624554]  ? find_held_lock+0x36/0x1c0
[  363.628623]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  363.634164]  alloc_pages_current+0x173/0x350
[  363.638575]  __page_cache_alloc+0x38c/0x5c0
[  363.642893]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  363.647814]  ? kasan_check_read+0x11/0x20
[  363.651957]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.657236]  ? generic_perform_write+0x6a0/0x6a0
[  363.661989]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.667526]  ? check_preemption_disabled+0x48/0x280
[  363.672543]  filemap_fault+0x1595/0x25f0
[  363.676612]  ? __lock_page_or_retry+0xa00/0xa00
[  363.681282]  ? mark_held_locks+0x130/0x130
[  363.685523]  ? filemap_map_pages+0xd6b/0x1a20
[  363.690023]  ? lock_downgrade+0x900/0x900
[  363.694167]  ? check_preemption_disabled+0x48/0x280
[  363.699188]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  363.704110]  ? kasan_check_read+0x11/0x20
[  363.708252]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.713527]  ? rcu_softirq_qs+0x20/0x20
[  363.717510]  ? filemap_map_pages+0xd92/0x1a20
[  363.722021]  ? find_get_entries_tag+0x1400/0x1400
[  363.726855]  ? find_held_lock+0x36/0x1c0
[  363.730943]  ? lock_acquire+0x1ed/0x520
[  363.734918]  ? ext4_filemap_fault+0x7a/0xad
[  363.739238]  ? lock_release+0xa00/0xa00
[  363.743209]  ? perf_trace_sched_process_exec+0x860/0x860
[  363.748656]  ? print_usage_bug+0xc0/0xc0
[  363.752726]  ? down_read+0x8d/0x120
[  363.756345]  ? ext4_filemap_fault+0x7a/0xad
[  363.760661]  ? __down_interruptible+0x700/0x700
[  363.765325]  ? find_held_lock+0x36/0x1c0
[  363.769387]  ext4_filemap_fault+0x82/0xad
[  363.773533]  __do_fault+0x100/0x6b0
[  363.777161]  ? lock_downgrade+0x900/0x900
[  363.781308]  ? pmd_devmap_trans_unstable+0x220/0x220
[  363.786420]  ? kasan_check_read+0x11/0x20
[  363.790560]  ? do_raw_spin_unlock+0xa7/0x330
[  363.794961]  ? do_raw_spin_trylock+0x270/0x270
[  363.799551]  __handle_mm_fault+0x3ea0/0x5be0
[  363.803952]  ? perf_trace_lock+0x7a0/0x7a0
[  363.808204]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  363.813050]  ? __switch_to_asm+0x34/0x70
[  363.817110]  ? __switch_to_asm+0x34/0x70
[  363.821188]  ? zap_class+0x640/0x640
[  363.824913]  ? zap_class+0x640/0x640
[  363.828618]  ? __x64_sys_futex+0x53e/0x6a0
[  363.832853]  ? find_held_lock+0x36/0x1c0
[  363.837012]  ? handle_mm_fault+0x42a/0xc70
[  363.841242]  ? lock_downgrade+0x900/0x900
[  363.845382]  ? check_preemption_disabled+0x48/0x280
[  363.850393]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  363.855336]  ? kasan_check_read+0x11/0x20
[  363.859477]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.864749]  ? rcu_softirq_qs+0x20/0x20
[  363.868722]  ? trace_hardirqs_off_caller+0x310/0x310
[  363.873822]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.879356]  ? check_preemption_disabled+0x48/0x280
[  363.884375]  handle_mm_fault+0x54f/0xc70
[  363.888442]  ? __handle_mm_fault+0x5be0/0x5be0
[  363.893033]  ? find_vma+0x34/0x190
[  363.896578]  __do_page_fault+0x5e8/0xe60
[  363.900632]  ? trace_hardirqs_off+0xb8/0x310
[  363.905064]  do_page_fault+0xf2/0x7e0
[  363.908860]  ? vmalloc_sync_all+0x30/0x30
[  363.913008]  ? error_entry+0x70/0xd0
[  363.916720]  ? trace_hardirqs_off_caller+0xbb/0x310
[  363.921741]  ? trace_hardirqs_on_caller+0xc0/0x310
[  363.926665]  ? syscall_return_slowpath+0x5e0/0x5e0
[  363.931587]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.936427]  ? trace_hardirqs_on_caller+0x310/0x310
[  363.941442]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  363.946904]  ? prepare_exit_to_usermode+0x291/0x3b0
[  363.951913]  ? page_fault+0x8/0x30
[  363.955451]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.960295]  ? page_fault+0x8/0x30
[  363.963833]  page_fault+0x1e/0x30
[  363.967282] RIP: 0033:0x404068
[  363.970491] Code: Bad RIP value.
[  363.973846] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  363.979313] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  363.986585] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  363.993848] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  364.001112] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  364.008373] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  364.015654] warn_alloc_show_mem: 1 callbacks suppressed
[  364.015663] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  364.015665] Mem-Info:
[  364.015694] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  364.015694]  active_file:13 inactive_file:13 isolated_file:0
[  364.015694]  unevictable:0 dirty:0 writeback:0 unstable:0
[  364.015694]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  364.015694]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  364.015694]  free:13747 free_pcp:348 free_cma:0
[  364.021048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  364.021055] Call Trace:
[  364.028768] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  364.031167]  <IRQ>
[  364.064192] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  364.073619]  dump_stack+0x244/0x39d
[  364.076176] lowmem_reserve[]: 0 2818 6321 6321
[  364.104149]  ? dump_stack_print_info.cold.1+0x20/0x20
[  364.106273] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  364.132394]  warn_alloc.cold.116+0xb7/0x1bd
[  364.135988] lowmem_reserve[]: 0 0 3503 3503
[  364.140570]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  364.145752] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  364.173246]  ? lock_downgrade+0x900/0x900
[  364.177531] lowmem_reserve[]: 0 0 0 0
[  364.177548] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  364.181864]  ? trace_hardirqs_off+0xb8/0x310
[  364.186667] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  364.215815]  ? trace_hardirqs_off+0xb8/0x310
[  364.219931] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  364.223726]  __alloc_pages_slowpath+0x26e8/0x2e10
[  364.237223] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  364.241637]  ? warn_alloc+0x120/0x120
[  364.256613] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  364.256621] 4484 total pagecache pages
[  364.261019]  ? print_usage_bug+0xc0/0xc0
[  364.276174] 0 pages in swap cache
[  364.281000]  ? warn_alloc+0x120/0x120
[  364.289812] Swap cache stats: add 0, delete 0, find 0/0
[  364.293599]  ? warn_alloc+0x120/0x120
[  364.302143] Free swap  = 0kB
[  364.306019]  ? print_usage_bug+0xc0/0xc0
[  364.310060] Total swap = 0kB
[  364.313513]  ? kvm_clock_read+0x18/0x30
[  364.317391] 1965979 pages RAM
[  364.322743]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  364.326510] 0 pages HighMem/MovableOnly
[  364.329526]  ? print_usage_bug+0xc0/0xc0
[  364.333556] 342854 pages reserved
[  364.336564]  ? __lock_acquire+0x62f/0x4c20
[  364.340510] 0 pages cma reserved
[  364.343609]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.348651] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  364.352555]  ? should_fail+0x22d/0xd01
[  364.356657] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  364.360047]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.364254] syz-fuzzer cpuset=/ mems_allowed=0
[  364.367612]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  364.408678]  ? __lock_acquire+0x62f/0x4c20
[  364.412917]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  364.418016]  ? __lock_acquire+0x62f/0x4c20
[  364.422245]  ? should_fail+0x22d/0xd01
[  364.426126]  ? rcu_irq_exit+0x1a2/0x390
[  364.430106]  ? mark_held_locks+0x130/0x130
[  364.434337]  ? mark_held_locks+0x130/0x130
[  364.438570]  ? mark_held_locks+0xc7/0x130
[  364.442716]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  364.447728]  ? zap_class+0x640/0x640
[  364.451442]  ? print_usage_bug+0xc0/0xc0
[  364.455505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.461050]  ? check_preemption_disabled+0x48/0x280
[  364.466070]  ? __lock_is_held+0xb5/0x140
[  364.470135]  __alloc_pages_nodemask+0xa80/0xde0
[  364.474798]  ? zap_class+0x640/0x640
[  364.478514]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  364.483542]  ? find_held_lock+0x36/0x1c0
[  364.487612]  ? ____cache_alloc_node+0x1c7/0x1e0
[  364.492290]  ? lock_downgrade+0x900/0x900
[  364.496439]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.501983]  cache_grow_begin+0xa5/0x8c0
[  364.506067]  ? do_raw_spin_unlock+0xa7/0x330
[  364.510479]  fallback_alloc+0x204/0x2e0
[  364.514459]  ____cache_alloc_node+0x1c7/0x1e0
[  364.518963]  kmem_cache_alloc_node+0xe3/0x730
[  364.523455]  ? ipv6_get_ifaddr+0x42e/0x620
[  364.527696]  __alloc_skb+0x119/0x770
[  364.531404]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.536780]  ? netdev_alloc_frag+0x1f0/0x1f0
[  364.541185]  ? lock_downgrade+0x900/0x900
[  364.545334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.550869]  ? refcount_sub_and_test_checked+0x203/0x310
[  364.556329]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  364.561783]  ? addrconf_rs_timer+0x690/0x690
[  364.566201]  ndisc_alloc_skb+0x144/0x340
[  364.570263]  ndisc_send_rs+0x331/0x6e0
[  364.574153]  addrconf_rs_timer+0x314/0x690
[  364.578390]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.582634]  call_timer_fn+0x272/0x920
[  364.586522]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.590751]  ? process_timeout+0x40/0x40
[  364.594818]  ? __run_timers+0x7da/0xc70
[  364.598790]  ? _raw_spin_unlock_irq+0x27/0x80
[  364.603279]  ? _raw_spin_unlock_irq+0x27/0x80
[  364.607767]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.611996]  ? lockdep_hardirqs_on+0x296/0x5b0
[  364.616577]  ? trace_hardirqs_on+0xbd/0x310
[  364.620892]  ? kasan_check_read+0x11/0x20
[  364.625037]  ? __run_timers+0x7da/0xc70
[  364.629012]  ? trace_hardirqs_off_caller+0x310/0x310
[  364.634116]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.638355]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.642582]  __run_timers+0x7e5/0xc70
[  364.646388]  ? timer_fixup_init+0x70/0x70
[  364.650537]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  364.655553]  ? zap_class+0x640/0x640
[  364.659270]  ? enqueue_hrtimer+0x1a5/0x560
[  364.663508]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  364.668697]  ? find_held_lock+0x36/0x1c0
[  364.672760]  ? zap_class+0x640/0x640
[  364.676476]  ? pvclock_read_flags+0x160/0x160
[  364.680975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.686517]  ? check_preemption_disabled+0x48/0x280
[  364.691646]  ? __lock_is_held+0xb5/0x140
[  364.695705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.701257]  ? check_preemption_disabled+0x48/0x280
[  364.706275]  run_timer_softirq+0x52/0xb0
[  364.710335]  ? rcu_read_lock_sched_held+0x14f/0x180
[  364.715349]  __do_softirq+0x308/0xb7e
[  364.719152]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  364.723643]  ? lock_downgrade+0x900/0x900
[  364.727793]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  364.732900]  ? pvclock_read_flags+0x160/0x160
[  364.737400]  ? lapic_next_event+0x5a/0x90
[  364.741551]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.747086]  ? kvm_clock_read+0x18/0x30
[  364.751056]  ? kvm_sched_clock_read+0x9/0x20
[  364.755463]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.760997]  ? check_preemption_disabled+0x48/0x280
[  364.766018]  irq_exit+0x17f/0x1c0
[  364.769471]  smp_apic_timer_interrupt+0x1cb/0x760
[  364.774315]  ? smp_reschedule_interrupt+0x109/0x650
[  364.779329]  ? smp_call_function_single_interrupt+0x650/0x650
[  364.785207]  ? interrupt_entry+0xb5/0xc0
[  364.789267]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.794279]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.799291]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.804134]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.809146]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.814155]  ? task_prio+0x50/0x50
[  364.817691]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.823226]  ? check_preemption_disabled+0x48/0x280
[  364.828243]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.833085]  apic_timer_interrupt+0xf/0x20
[  364.837308]  </IRQ>
[  364.839544] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  364.844473] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  364.863374] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  364.871079] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  364.878339] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  364.885606] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  364.892870] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  364.900480] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  364.907796]  skb_clone+0x1bb/0x500
[  364.911341]  ? finish_task_switch+0x2f4/0x910
[  364.915926]  ? skb_split+0x11e0/0x11e0
[  364.919814]  ? preempt_notifier_register+0x200/0x200
[  364.924913]  ? __switch_to_asm+0x34/0x70
[  364.928976]  ? __switch_to_asm+0x34/0x70
[  364.933035]  ? __switch_to_asm+0x40/0x70
[  364.937097]  ? __switch_to_asm+0x34/0x70
[  364.941154]  ? __switch_to_asm+0x40/0x70
[  364.945208]  ? __switch_to_asm+0x34/0x70
[  364.949265]  ? __switch_to_asm+0x40/0x70
[  364.953317]  ? __switch_to_asm+0x34/0x70
[  364.957384]  ? __switch_to_asm+0x34/0x70
[  364.961438]  ? __switch_to_asm+0x40/0x70
[  364.965495]  ? __switch_to_asm+0x34/0x70
[  364.969559]  bpf_clone_redirect+0xb9/0x490
[  364.973791]  ? __schedule+0x8d7/0x21d0
[  364.977682]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  364.982694]  ? __sched_text_start+0x8/0x8
[  364.986835]  ? retint_kernel+0x2d/0x2d
[  364.990725]  ? find_held_lock+0x36/0x1c0
[  364.994789]  ? lock_acquire+0x1ed/0x520
[  364.998768]  ? bpf_test_run+0x3cb/0x780
[  365.002737]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.008274]  ? check_preemption_disabled+0x48/0x280
[  365.013294]  ? kasan_check_read+0x11/0x20
[  365.017434]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.022713]  ? rcu_softirq_qs+0x20/0x20
[  365.026771]  ? preempt_schedule+0x4d/0x60
[  365.030921]  ? ___preempt_schedule+0x16/0x18
[  365.035347]  ? bpf_test_run+0x25d/0x780
[  365.039328]  ? netlink_diag_dump+0x2a0/0x2a0
[  365.043745]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.049467]  ? bpf_test_init.isra.10+0x70/0x100
[  365.054137]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  365.058896]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  365.064138]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  365.069675]  ? fput+0x130/0x1a0
[  365.072955]  ? __bpf_prog_get+0x9b/0x290
[  365.077019]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  365.081946]  ? bpf_prog_test_run+0x130/0x1a0
[  365.086360]  ? __x64_sys_bpf+0x3d8/0x520
[  365.090416]  ? bpf_prog_get+0x20/0x20
[  365.094241]  ? do_syscall_64+0x1b9/0x820
[  365.098298]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  365.103661]  ? syscall_return_slowpath+0x5e0/0x5e0
[  365.108583]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.113423]  ? trace_hardirqs_on_caller+0x310/0x310
[  365.118438]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  365.123458]  ? prepare_exit_to_usermode+0x291/0x3b0
[  365.128488]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.133336]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  365.138713] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  365.138781] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  365.145718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  365.145725] Call Trace:
[  365.152384] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  365.161530]  <IRQ>
[  365.164094] syz-executor2 cpuset=syz2 mems_allowed=0
[  365.174568]  dump_stack+0x244/0x39d
[  365.185393]  ? dump_stack_print_info.cold.1+0x20/0x20
[  365.190594]  warn_alloc.cold.116+0xb7/0x1bd
[  365.194917]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  365.199761]  ? lock_downgrade+0x900/0x900
[  365.203925]  ? trace_hardirqs_off+0xb8/0x310
[  365.208343]  ? trace_hardirqs_off+0xb8/0x310
[  365.212753]  __alloc_pages_slowpath+0x26e8/0x2e10
[  365.217617]  ? warn_alloc+0x120/0x120
[  365.221414]  ? print_usage_bug+0xc0/0xc0
[  365.225487]  ? warn_alloc+0x120/0x120
[  365.229285]  ? warn_alloc+0x120/0x120
[  365.233082]  ? print_usage_bug+0xc0/0xc0
[  365.237144]  ? print_usage_bug+0xc0/0xc0
[  365.241374]  ? __lock_acquire+0x62f/0x4c20
[  365.245621]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.251157]  ? should_fail+0x22d/0xd01
[  365.255042]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  365.260243]  ? __lock_acquire+0x62f/0x4c20
[  365.264483]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  365.269583]  ? __lock_acquire+0x62f/0x4c20
[  365.273923]  ? should_fail+0x22d/0xd01
[  365.277813]  ? find_held_lock+0x36/0x1c0
[  365.281877]  ? mark_held_locks+0x130/0x130
[  365.286116]  ? mark_held_locks+0x130/0x130
[  365.290342]  ? zap_class+0x640/0x640
[  365.294060]  ? zap_class+0x640/0x640
[  365.297769]  ? print_usage_bug+0xc0/0xc0
[  365.301826]  ? do_raw_spin_unlock+0xa7/0x330
[  365.306230]  ? zap_class+0x640/0x640
[  365.309942]  ? print_usage_bug+0xc0/0xc0
[  365.314002]  ? wq_watchdog_touch+0x9c/0xfe
[  365.318237]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.323779]  ? check_preemption_disabled+0x48/0x280
[  365.328801]  ? __lock_is_held+0xb5/0x140
[  365.332868]  __alloc_pages_nodemask+0xa80/0xde0
[  365.337542]  ? zap_class+0x640/0x640
[  365.341261]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  365.346284]  ? find_held_lock+0x36/0x1c0
[  365.350352]  ? ____cache_alloc_node+0x1c7/0x1e0
[  365.355018]  ? lock_downgrade+0x900/0x900
[  365.359166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.364703]  cache_grow_begin+0xa5/0x8c0
[  365.368757]  ? do_raw_spin_unlock+0xa7/0x330
[  365.373170]  fallback_alloc+0x204/0x2e0
[  365.377145]  ____cache_alloc_node+0x1c7/0x1e0
[  365.381642]  kmem_cache_alloc_node+0xe3/0x730
[  365.386137]  ? ipv6_get_ifaddr+0x42e/0x620
[  365.390379]  __alloc_skb+0x119/0x770
[  365.394110]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.399405]  ? netdev_alloc_frag+0x1f0/0x1f0
[  365.403900]  ? lock_downgrade+0x900/0x900
[  365.408053]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.413585]  ? refcount_sub_and_test_checked+0x203/0x310
[  365.419034]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  365.424478]  ? addrconf_rs_timer+0x690/0x690
[  365.428899]  ndisc_alloc_skb+0x144/0x340
[  365.432968]  ndisc_send_rs+0x331/0x6e0
[  365.436857]  addrconf_rs_timer+0x314/0x690
[  365.441110]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.445363]  call_timer_fn+0x272/0x920
[  365.449246]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.453474]  ? process_timeout+0x40/0x40
[  365.457540]  ? mark_held_locks+0xc7/0x130
[  365.461710]  ? _raw_spin_unlock_irq+0x27/0x80
[  365.466199]  ? _raw_spin_unlock_irq+0x27/0x80
[  365.470689]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.475018]  ? lockdep_hardirqs_on+0x296/0x5b0
[  365.479594]  ? trace_hardirqs_on+0xbd/0x310
[  365.484082]  ? kasan_check_read+0x11/0x20
[  365.488233]  ? __run_timers+0x7da/0xc70
[  365.492219]  ? trace_hardirqs_off_caller+0x310/0x310
[  365.497324]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.501556]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.505783]  __run_timers+0x7e5/0xc70
[  365.509589]  ? timer_fixup_init+0x70/0x70
[  365.513735]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  365.518747]  ? zap_class+0x640/0x640
[  365.522462]  ? print_usage_bug+0xc0/0xc0
[  365.526521]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  365.531715]  ? find_held_lock+0x36/0x1c0
[  365.535776]  ? zap_class+0x640/0x640
[  365.539594]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.545139]  ? check_preemption_disabled+0x48/0x280
[  365.550157]  ? __lock_is_held+0xb5/0x140
[  365.554217]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.559746]  ? check_preemption_disabled+0x48/0x280
[  365.564770]  run_timer_softirq+0x52/0xb0
[  365.568826]  ? rcu_read_lock_sched_held+0x14f/0x180
[  365.573856]  __do_softirq+0x308/0xb7e
[  365.577660]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  365.582150]  ? lock_downgrade+0x900/0x900
[  365.586305]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  365.591409]  ? pvclock_read_flags+0x160/0x160
[  365.595898]  ? lapic_next_event+0x5a/0x90
[  365.600042]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.605581]  ? kvm_clock_read+0x18/0x30
[  365.609551]  ? kvm_sched_clock_read+0x9/0x20
[  365.613957]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.619491]  ? check_preemption_disabled+0x48/0x280
[  365.624514]  irq_exit+0x17f/0x1c0
[  365.627968]  smp_apic_timer_interrupt+0x1cb/0x760
[  365.632810]  ? smp_call_function_single_interrupt+0x650/0x650
[  365.638688]  ? interrupt_entry+0xb5/0xc0
[  365.642746]  ? trace_hardirqs_off_caller+0xbb/0x310
[  365.647758]  ? trace_hardirqs_off_caller+0xbb/0x310
[  365.652771]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.657610]  ? trace_hardirqs_on_caller+0x310/0x310
[  365.662622]  ? trace_hardirqs_on_caller+0x310/0x310
[  365.667633]  ? task_prio+0x50/0x50
[  365.671169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.676705]  ? check_preemption_disabled+0x48/0x280
[  365.681721]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.686564]  apic_timer_interrupt+0xf/0x20
[  365.690787]  </IRQ>
[  365.693031] RIP: 0010:dump_stack+0x358/0x39d
[  365.697527] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  365.716438] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  365.724145] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  365.731410] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  365.738688] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  365.745965] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  365.753228] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  365.760506]  ? dump_stack+0x34f/0x39d
[  365.764317]  ? dump_stack_print_info.cold.1+0x20/0x20
[  365.769507]  ? mark_held_locks+0x130/0x130
[  365.773745]  ? mark_held_locks+0x130/0x130
[  365.777978]  dump_header+0x27b/0xf72
[  365.781785]  ? pagefault_out_of_memory+0x197/0x197
[  365.786719]  ? __lock_acquire+0x62f/0x4c20
[  365.790955]  ? percpu_ref_get_many+0x240/0x240
[  365.795538]  ? print_usage_bug+0xc0/0xc0
[  365.799599]  ? zap_class+0x640/0x640
[  365.803312]  ? print_usage_bug+0xc0/0xc0
[  365.807366]  ? print_usage_bug+0xc0/0xc0
[  365.811427]  ? zap_class+0x640/0x640
[  365.815139]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.820674]  ? find_held_lock+0x36/0x1c0
[  365.824749]  ? mark_held_locks+0xc7/0x130
[  365.828896]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  365.834001]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  365.839114]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  365.843693]  ? trace_hardirqs_on+0xbd/0x310
[  365.848007]  ? kasan_check_read+0x11/0x20
[  365.852167]  ? ___ratelimit+0x3b4/0x672
[  365.856137]  ? trace_hardirqs_off_caller+0x310/0x310
[  365.861234]  ? trace_hardirqs_on+0x310/0x310
[  365.865656]  ? lock_downgrade+0x900/0x900
[  365.869803]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  365.874904]  ? ___ratelimit+0x3b9/0x672
[  365.878879]  ? idr_get_free+0xf70/0xf70
[  365.882858]  ? find_held_lock+0x36/0x1c0
[  365.886929]  oom_kill_process.cold.27+0x10/0x903
[  365.891680]  ? zap_class+0x640/0x640
[  365.895390]  ? check_preemption_disabled+0x48/0x280
[  365.900415]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.905337]  ? kasan_check_read+0x11/0x20
[  365.909482]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.914757]  ? oom_evaluate_task+0x540/0x540
[  365.919163]  ? find_held_lock+0x36/0x1c0
[  365.923229]  ? out_of_memory+0x974/0x1430
[  365.927373]  ? lock_downgrade+0x900/0x900
[  365.931514]  ? check_preemption_disabled+0x48/0x280
[  365.936539]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  365.941466]  ? kasan_check_read+0x11/0x20
[  365.945609]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.950880]  ? rcu_softirq_qs+0x20/0x20
[  365.954862]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.960397]  ? oom_evaluate_task+0x302/0x540
[  365.964809]  out_of_memory+0xa84/0x1430
[  365.968893]  ? oom_killer_disable+0x3a0/0x3a0
[  365.973383]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  365.978315]  ? __ww_mutex_check_waiters+0x160/0x160
[  365.983339]  __alloc_pages_slowpath+0x2354/0x2e10
[  365.988211]  ? warn_alloc+0x120/0x120
[  365.992023]  ? mark_held_locks+0x130/0x130
[  365.996256]  ? find_get_entry+0xaae/0x1120
[  366.000492]  ? filemap_map_pages+0x1a20/0x1a20
[  366.005081]  ? zap_class+0x640/0x640
[  366.008801]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.014344]  ? check_preemption_disabled+0x48/0x280
[  366.019357]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.024897]  ? should_fail+0x22d/0xd01
[  366.028791]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  366.033899]  ? zap_class+0x640/0x640
[  366.037633]  ? __lock_is_held+0xb5/0x140
[  366.041695]  ? mark_held_locks+0x130/0x130
[  366.045952]  ? lock_release+0xa00/0xa00
[  366.049923]  ? perf_trace_sched_process_exec+0x860/0x860
[  366.055369]  ? xa_load+0x2ba/0x460
[  366.058907]  ? lock_downgrade+0x900/0x900
[  366.063059]  ? __might_sleep+0x95/0x190
[  366.067055]  __alloc_pages_nodemask+0xa80/0xde0
[  366.071726]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  366.076737]  ? __page_cache_alloc+0x191/0x5c0
[  366.081227]  ? xa_load+0x2e1/0x460
[  366.084765]  ? xa_clear_mark+0x40/0x40
[  366.088647]  ? zap_class+0x640/0x640
[  366.092365]  ? zap_class+0x640/0x640
[  366.096074]  ? zap_class+0x640/0x640
[  366.099781]  ? __do_page_cache_readahead+0x663/0x810
[  366.104889]  ? find_held_lock+0x36/0x1c0
[  366.108949]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  366.114511]  alloc_pages_current+0x173/0x350
[  366.118919]  __page_cache_alloc+0x38c/0x5c0
[  366.123240]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  366.128168]  ? kasan_check_read+0x11/0x20
[  366.132308]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.137584]  ? generic_perform_write+0x6a0/0x6a0
[  366.142334]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.147972]  ? check_preemption_disabled+0x48/0x280
[  366.152989]  filemap_fault+0x1595/0x25f0
[  366.157057]  ? __lock_page_or_retry+0xa00/0xa00
[  366.161723]  ? mark_held_locks+0x130/0x130
[  366.165959]  ? filemap_map_pages+0xd6b/0x1a20
[  366.170453]  ? lock_downgrade+0x900/0x900
[  366.174595]  ? check_preemption_disabled+0x48/0x280
[  366.179608]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  366.184544]  ? kasan_check_read+0x11/0x20
[  366.188684]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.193953]  ? rcu_softirq_qs+0x20/0x20
[  366.197957]  ? filemap_map_pages+0xd92/0x1a20
[  366.202462]  ? find_get_entries_tag+0x1400/0x1400
[  366.207383]  ? find_held_lock+0x36/0x1c0
[  366.211546]  ? lock_acquire+0x1ed/0x520
[  366.215516]  ? ext4_filemap_fault+0x7a/0xad
[  366.219843]  ? lock_release+0xa00/0xa00
[  366.223822]  ? perf_trace_sched_process_exec+0x860/0x860
[  366.229270]  ? print_usage_bug+0xc0/0xc0
[  366.233345]  ? down_read+0x8d/0x120
[  366.236965]  ? ext4_filemap_fault+0x7a/0xad
[  366.241282]  ? __down_interruptible+0x700/0x700
[  366.245948]  ? find_held_lock+0x36/0x1c0
[  366.250010]  ext4_filemap_fault+0x82/0xad
[  366.254153]  __do_fault+0x100/0x6b0
[  366.257778]  ? lock_downgrade+0x900/0x900
[  366.261932]  ? pmd_devmap_trans_unstable+0x220/0x220
[  366.267033]  ? kasan_check_read+0x11/0x20
[  366.271175]  ? do_raw_spin_unlock+0xa7/0x330
[  366.275581]  ? do_raw_spin_trylock+0x270/0x270
[  366.280182]  __handle_mm_fault+0x3ea0/0x5be0
[  366.284592]  ? perf_trace_lock+0x7a0/0x7a0
[  366.288836]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  366.293685]  ? __switch_to_asm+0x34/0x70
[  366.297739]  ? __switch_to_asm+0x34/0x70
[  366.301905]  ? zap_class+0x640/0x640
[  366.305612]  ? zap_class+0x640/0x640
[  366.309317]  ? __x64_sys_futex+0x53e/0x6a0
[  366.313659]  ? find_held_lock+0x36/0x1c0
[  366.317740]  ? handle_mm_fault+0x42a/0xc70
[  366.321973]  ? lock_downgrade+0x900/0x900
[  366.326113]  ? check_preemption_disabled+0x48/0x280
[  366.331128]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  366.336050]  ? kasan_check_read+0x11/0x20
[  366.340201]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.345472]  ? rcu_softirq_qs+0x20/0x20
[  366.349439]  ? trace_hardirqs_off_caller+0x310/0x310
[  366.354535]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.360070]  ? check_preemption_disabled+0x48/0x280
[  366.365092]  handle_mm_fault+0x54f/0xc70
[  366.369155]  ? __handle_mm_fault+0x5be0/0x5be0
[  366.373736]  ? find_vma+0x34/0x190
[  366.377280]  __do_page_fault+0x5e8/0xe60
[  366.381339]  ? trace_hardirqs_off+0xb8/0x310
[  366.385754]  do_page_fault+0xf2/0x7e0
[  366.389556]  ? vmalloc_sync_all+0x30/0x30
[  366.393723]  ? error_entry+0x70/0xd0
[  366.397435]  ? trace_hardirqs_off_caller+0xbb/0x310
[  366.402447]  ? trace_hardirqs_on_caller+0xc0/0x310
[  366.407387]  ? syscall_return_slowpath+0x5e0/0x5e0
[  366.412309]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.417151]  ? trace_hardirqs_on_caller+0x310/0x310
[  366.422162]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  366.427609]  ? prepare_exit_to_usermode+0x291/0x3b0
[  366.432617]  ? page_fault+0x8/0x30
[  366.436162]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.441000]  ? page_fault+0x8/0x30
[  366.444649]  page_fault+0x1e/0x30
[  366.448097] RIP: 0033:0x404068
[  366.451295] Code: Bad RIP value.
[  366.454649] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  366.460003] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  366.467265] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  366.474525] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  366.481784] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  366.489069] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  366.496353] warn_alloc_show_mem: 1 callbacks suppressed
[  366.496362] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  366.496364] Mem-Info:
[  366.496394] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  366.496394]  active_file:13 inactive_file:13 isolated_file:0
[  366.496394]  unevictable:0 dirty:0 writeback:0 unstable:0
[  366.496394]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  366.496394]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  366.496394]  free:13747 free_pcp:348 free_cma:0
[  366.501740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  366.509097] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  366.511484] Call Trace:
[  366.544523] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  366.553865]  <IRQ>
[  366.581686] lowmem_reserve[]: 0 2818 6321 6321
[  366.584260]  dump_stack+0x244/0x39d
[  366.610531] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  366.612676]  ? dump_stack_print_info.cold.1+0x20/0x20
[  366.617223] lowmem_reserve[]: 0 0 3503 3503
[  366.620860]  warn_alloc.cold.116+0xb7/0x1bd
[  366.648324] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  366.653507]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  366.657805] lowmem_reserve[]: 0 0 0 0
[  366.662118]  ? lock_downgrade+0x900/0x900
[  366.691232] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  366.696072]  ? trace_hardirqs_off+0xb8/0x310
[  366.699843] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  366.703985]  ? trace_hardirqs_off+0xb8/0x310
[  366.717470] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  366.721880]  __alloc_pages_slowpath+0x26e8/0x2e10
[  366.736762] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  366.741216]  ? warn_alloc+0x120/0x120
[  366.756341] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  366.761172]  ? warn_alloc+0x120/0x120
[  366.769976] 4484 total pagecache pages
[  366.773774]  ? warn_alloc+0x120/0x120
[  366.782350] 0 pages in swap cache
[  366.786139]  ? print_usage_bug+0xc0/0xc0
[  366.790004] Swap cache stats: add 0, delete 0, find 0/0
[  366.793795]  ? __lock_acquire+0x62f/0x4c20
[  366.797217] Free swap  = 0kB
[  366.801265]  ? print_usage_bug+0xc0/0xc0
[  366.806598] Total swap = 0kB
[  366.810832]  ? __lock_acquire+0x62f/0x4c20
[  366.813823] 1965979 pages RAM
[  366.817871]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.820858] 0 pages HighMem/MovableOnly
[  366.825082]  ? should_fail+0x22d/0xd01
[  366.828158] 342854 pages reserved
[  366.833680]  ? __lock_acquire+0x62f/0x4c20
[  366.837625] 0 pages cma reserved
[  366.841501]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  366.844997] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  366.849142]  ? __lock_acquire+0x62f/0x4c20
[  366.849160]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  366.849176]  ? __lock_acquire+0x62f/0x4c20
[  366.852566] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  366.857604]  ? should_fail+0x22d/0xd01
[  366.864067] syz-fuzzer cpuset=/ mems_allowed=0
[  366.868298]  ? mark_held_locks+0x130/0x130
[  366.900764]  ? mark_held_locks+0x130/0x130
[  366.904996]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  366.910106]  ? zap_class+0x640/0x640
[  366.913815]  ? print_usage_bug+0xc0/0xc0
[  366.917876]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.923415]  ? check_preemption_disabled+0x48/0x280
[  366.928449]  ? __lock_is_held+0xb5/0x140
[  366.932515]  __alloc_pages_nodemask+0xa80/0xde0
[  366.937203]  ? zap_class+0x640/0x640
[  366.940920]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  366.945947]  ? find_held_lock+0x36/0x1c0
[  366.950017]  ? ____cache_alloc_node+0x1c7/0x1e0
[  366.954684]  ? lock_downgrade+0x900/0x900
[  366.958926]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.964465]  cache_grow_begin+0xa5/0x8c0
[  366.968525]  ? do_raw_spin_unlock+0xa7/0x330
[  366.972935]  fallback_alloc+0x204/0x2e0
[  366.977516]  ____cache_alloc_node+0x1c7/0x1e0
[  366.982008]  kmem_cache_alloc_node+0xe3/0x730
[  366.986503]  ? ipv6_get_ifaddr+0x42e/0x620
[  366.990745]  __alloc_skb+0x119/0x770
[  366.994460]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.999734]  ? netdev_alloc_frag+0x1f0/0x1f0
[  367.004144]  ? lock_downgrade+0x900/0x900
[  367.008298]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.013835]  ? refcount_sub_and_test_checked+0x203/0x310
[  367.019286]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  367.024738]  ? addrconf_rs_timer+0x690/0x690
[  367.029160]  ndisc_alloc_skb+0x144/0x340
[  367.033222]  ndisc_send_rs+0x331/0x6e0
[  367.037108]  addrconf_rs_timer+0x314/0x690
[  367.041359]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.045597]  call_timer_fn+0x272/0x920
[  367.049484]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.053713]  ? process_timeout+0x40/0x40
[  367.057788]  ? __run_timers+0x7da/0xc70
[  367.061766]  ? _raw_spin_unlock_irq+0x27/0x80
[  367.066773]  ? _raw_spin_unlock_irq+0x27/0x80
[  367.071266]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.075507]  ? lockdep_hardirqs_on+0x296/0x5b0
[  367.080095]  ? trace_hardirqs_on+0xbd/0x310
[  367.084426]  ? kasan_check_read+0x11/0x20
[  367.088569]  ? __run_timers+0x7da/0xc70
[  367.092543]  ? trace_hardirqs_off_caller+0x310/0x310
[  367.097715]  ? prandom_seed_full_state+0x3b0/0x3b0
[  367.102657]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.106888]  __run_timers+0x7e5/0xc70
[  367.110699]  ? timer_fixup_init+0x70/0x70
[  367.114864]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  367.119876]  ? zap_class+0x640/0x640
[  367.123593]  ? enqueue_hrtimer+0x1a5/0x560
[  367.127838]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  367.133031]  ? find_held_lock+0x36/0x1c0
[  367.137090]  ? zap_class+0x640/0x640
[  367.140807]  ? pvclock_read_flags+0x160/0x160
[  367.145306]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.150840]  ? check_preemption_disabled+0x48/0x280
[  367.155860]  ? __lock_is_held+0xb5/0x140
[  367.159918]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.165454]  ? check_preemption_disabled+0x48/0x280
[  367.170470]  run_timer_softirq+0x52/0xb0
[  367.174543]  ? rcu_read_lock_sched_held+0x14f/0x180
[  367.179556]  __do_softirq+0x308/0xb7e
[  367.183355]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  367.187848]  ? lock_downgrade+0x900/0x900
[  367.192015]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  367.197121]  ? pvclock_read_flags+0x160/0x160
[  367.201614]  ? lapic_next_event+0x5a/0x90
[  367.205766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.211316]  ? kvm_clock_read+0x18/0x30
[  367.215282]  ? kvm_sched_clock_read+0x9/0x20
[  367.219694]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.225232]  ? check_preemption_disabled+0x48/0x280
[  367.230252]  irq_exit+0x17f/0x1c0
[  367.233703]  smp_apic_timer_interrupt+0x1cb/0x760
[  367.238549]  ? smp_reschedule_interrupt+0x109/0x650
[  367.243563]  ? smp_call_function_single_interrupt+0x650/0x650
[  367.249446]  ? interrupt_entry+0xb5/0xc0
[  367.253612]  ? trace_hardirqs_off_caller+0xbb/0x310
[  367.258622]  ? trace_hardirqs_off_caller+0xbb/0x310
[  367.263633]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.268471]  ? trace_hardirqs_on_caller+0x310/0x310
[  367.273481]  ? trace_hardirqs_on_caller+0x310/0x310
[  367.278492]  ? task_prio+0x50/0x50
[  367.282034]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.287570]  ? check_preemption_disabled+0x48/0x280
[  367.292585]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.297516]  apic_timer_interrupt+0xf/0x20
[  367.301748]  </IRQ>
[  367.303983] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  367.308910] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  367.327808] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  367.335511] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  367.342785] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  367.350053] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  367.357315] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  367.364577] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  367.371879]  skb_clone+0x1bb/0x500
[  367.375418]  ? finish_task_switch+0x2f4/0x910
[  367.379914]  ? skb_split+0x11e0/0x11e0
[  367.383813]  ? preempt_notifier_register+0x200/0x200
[  367.388908]  ? __switch_to_asm+0x34/0x70
[  367.392969]  ? __switch_to_asm+0x34/0x70
[  367.397030]  ? __switch_to_asm+0x40/0x70
[  367.401084]  ? __switch_to_asm+0x34/0x70
[  367.405140]  ? __switch_to_asm+0x40/0x70
[  367.409197]  ? __switch_to_asm+0x34/0x70
[  367.413264]  ? __switch_to_asm+0x40/0x70
[  367.417323]  ? __switch_to_asm+0x34/0x70
[  367.421388]  ? __switch_to_asm+0x34/0x70
[  367.425443]  ? __switch_to_asm+0x40/0x70
[  367.429497]  ? __switch_to_asm+0x34/0x70
[  367.433561]  bpf_clone_redirect+0xb9/0x490
[  367.437791]  ? __schedule+0x8d7/0x21d0
[  367.441681]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  367.446702]  ? __sched_text_start+0x8/0x8
[  367.450850]  ? retint_kernel+0x2d/0x2d
[  367.454745]  ? find_held_lock+0x36/0x1c0
[  367.458809]  ? lock_acquire+0x1ed/0x520
[  367.462781]  ? bpf_test_run+0x3cb/0x780
[  367.466749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.472286]  ? check_preemption_disabled+0x48/0x280
[  367.477307]  ? kasan_check_read+0x11/0x20
[  367.481450]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.486728]  ? rcu_softirq_qs+0x20/0x20
[  367.490698]  ? preempt_schedule+0x4d/0x60
[  367.494849]  ? ___preempt_schedule+0x16/0x18
[  367.499266]  ? bpf_test_run+0x25d/0x780
[  367.503246]  ? netlink_diag_dump+0x2a0/0x2a0
[  367.507660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.513193]  ? bpf_test_init.isra.10+0x70/0x100
[  367.517864]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  367.522722]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  367.527559]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  367.533096]  ? fput+0x130/0x1a0
[  367.536379]  ? __bpf_prog_get+0x9b/0x290
[  367.540440]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  367.545278]  ? bpf_prog_test_run+0x130/0x1a0
[  367.549685]  ? __x64_sys_bpf+0x3d8/0x520
[  367.553747]  ? bpf_prog_get+0x20/0x20
[  367.557562]  ? do_syscall_64+0x1b9/0x820
[  367.561617]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  367.566982]  ? syscall_return_slowpath+0x5e0/0x5e0
[  367.571907]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.576747]  ? trace_hardirqs_on_caller+0x310/0x310
[  367.581764]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  367.586782]  ? prepare_exit_to_usermode+0x291/0x3b0
[  367.591798]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.596641]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  367.602016] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  367.602083] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  367.609198] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  367.609203] Call Trace:
[  367.609209]  <IRQ>
[  367.609226]  dump_stack+0x244/0x39d
[  367.609244]  ? dump_stack_print_info.cold.1+0x20/0x20
[  367.615768] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  367.625070]  warn_alloc.cold.116+0xb7/0x1bd
[  367.627623] syz-executor2 cpuset=syz2 mems_allowed=0
[  367.629769]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  367.663218]  ? lock_downgrade+0x900/0x900
[  367.667372]  ? trace_hardirqs_off+0xb8/0x310
[  367.671784]  ? trace_hardirqs_off+0xb8/0x310
[  367.676220]  __alloc_pages_slowpath+0x26e8/0x2e10
[  367.681097]  ? warn_alloc+0x120/0x120
[  367.684898]  ? print_usage_bug+0xc0/0xc0
[  367.688960]  ? warn_alloc+0x120/0x120
[  367.692767]  ? warn_alloc+0x120/0x120
[  367.696563]  ? print_usage_bug+0xc0/0xc0
[  367.700622]  ? print_usage_bug+0xc0/0xc0
[  367.704679]  ? __lock_acquire+0x62f/0x4c20
[  367.708922]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.714452]  ? should_fail+0x22d/0xd01
[  367.718338]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.723434]  ? __lock_acquire+0x62f/0x4c20
[  367.727668]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.732788]  ? __lock_acquire+0x62f/0x4c20
[  367.737016]  ? should_fail+0x22d/0xd01
[  367.740902]  ? find_held_lock+0x36/0x1c0
[  367.744964]  ? mark_held_locks+0x130/0x130
[  367.749196]  ? mark_held_locks+0x130/0x130
[  367.753427]  ? zap_class+0x640/0x640
[  367.757142]  ? zap_class+0x640/0x640
[  367.760854]  ? print_usage_bug+0xc0/0xc0
[  367.764910]  ? do_raw_spin_unlock+0xa7/0x330
[  367.769313]  ? zap_class+0x640/0x640
[  367.773026]  ? print_usage_bug+0xc0/0xc0
[  367.777083]  ? wq_watchdog_touch+0x9c/0xfe
[  367.781315]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.786848]  ? check_preemption_disabled+0x48/0x280
[  367.791868]  ? __lock_is_held+0xb5/0x140
[  367.795940]  __alloc_pages_nodemask+0xa80/0xde0
[  367.800605]  ? zap_class+0x640/0x640
[  367.804450]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  367.809469]  ? find_held_lock+0x36/0x1c0
[  367.813536]  ? ____cache_alloc_node+0x1c7/0x1e0
[  367.818199]  ? lock_downgrade+0x900/0x900
[  367.822347]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.827883]  cache_grow_begin+0xa5/0x8c0
[  367.831940]  ? do_raw_spin_unlock+0xa7/0x330
[  367.836367]  fallback_alloc+0x204/0x2e0
[  367.840343]  ____cache_alloc_node+0x1c7/0x1e0
[  367.844851]  kmem_cache_alloc_node+0xe3/0x730
[  367.849342]  ? ipv6_get_ifaddr+0x42e/0x620
[  367.853578]  __alloc_skb+0x119/0x770
[  367.857291]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.862690]  ? netdev_alloc_frag+0x1f0/0x1f0
[  367.867093]  ? lock_downgrade+0x900/0x900
[  367.871246]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.876784]  ? refcount_sub_and_test_checked+0x203/0x310
[  367.882233]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  367.887691]  ? addrconf_rs_timer+0x690/0x690
[  367.892106]  ndisc_alloc_skb+0x144/0x340
[  367.896168]  ndisc_send_rs+0x331/0x6e0
[  367.900059]  addrconf_rs_timer+0x314/0x690
[  367.904295]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.908538]  call_timer_fn+0x272/0x920
[  367.912435]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.916663]  ? process_timeout+0x40/0x40
[  367.920742]  ? mark_held_locks+0xc7/0x130
[  367.924888]  ? _raw_spin_unlock_irq+0x27/0x80
[  367.929376]  ? _raw_spin_unlock_irq+0x27/0x80
[  367.933865]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.938096]  ? lockdep_hardirqs_on+0x296/0x5b0
[  367.942691]  ? trace_hardirqs_on+0xbd/0x310
[  367.947006]  ? kasan_check_read+0x11/0x20
[  367.951158]  ? __run_timers+0x7da/0xc70
[  367.955132]  ? trace_hardirqs_off_caller+0x310/0x310
[  367.960234]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.964470]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  367.968703]  __run_timers+0x7e5/0xc70
[  367.972544]  ? timer_fixup_init+0x70/0x70
[  367.976694]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  367.981711]  ? zap_class+0x640/0x640
[  367.985516]  ? print_usage_bug+0xc0/0xc0
[  367.989589]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  367.994779]  ? find_held_lock+0x36/0x1c0
[  367.998837]  ? zap_class+0x640/0x640
[  368.003090]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.008635]  ? check_preemption_disabled+0x48/0x280
[  368.013655]  ? __lock_is_held+0xb5/0x140
[  368.017724]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.023256]  ? check_preemption_disabled+0x48/0x280
[  368.028292]  run_timer_softirq+0x52/0xb0
[  368.032346]  ? rcu_read_lock_sched_held+0x14f/0x180
[  368.037859]  __do_softirq+0x308/0xb7e
[  368.041657]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  368.046155]  ? lock_downgrade+0x900/0x900
[  368.050306]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  368.055409]  ? pvclock_read_flags+0x160/0x160
[  368.059904]  ? lapic_next_event+0x5a/0x90
[  368.064050]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.069590]  ? kvm_clock_read+0x18/0x30
[  368.073560]  ? kvm_sched_clock_read+0x9/0x20
[  368.077966]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.083510]  ? check_preemption_disabled+0x48/0x280
[  368.088556]  irq_exit+0x17f/0x1c0
[  368.092006]  smp_apic_timer_interrupt+0x1cb/0x760
[  368.096848]  ? smp_call_function_single_interrupt+0x650/0x650
[  368.102741]  ? interrupt_entry+0xb5/0xc0
[  368.106806]  ? trace_hardirqs_off_caller+0xbb/0x310
[  368.111815]  ? trace_hardirqs_off_caller+0xbb/0x310
[  368.116846]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.121689]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.126729]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.131743]  ? task_prio+0x50/0x50
[  368.135281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.140818]  ? check_preemption_disabled+0x48/0x280
[  368.145836]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.150687]  apic_timer_interrupt+0xf/0x20
[  368.154918]  </IRQ>
[  368.157151] RIP: 0010:dump_stack+0x358/0x39d
[  368.161570] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  368.180483] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  368.188190] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  368.195453] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  368.202719] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  368.209985] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  368.217249] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  368.224541]  ? dump_stack+0x34f/0x39d
[  368.228355]  ? dump_stack_print_info.cold.1+0x20/0x20
[  368.233543]  ? mark_held_locks+0x130/0x130
[  368.237777]  ? mark_held_locks+0x130/0x130
[  368.242011]  dump_header+0x27b/0xf72
[  368.245741]  ? pagefault_out_of_memory+0x197/0x197
[  368.250680]  ? __lock_acquire+0x62f/0x4c20
[  368.254923]  ? percpu_ref_get_many+0x240/0x240
[  368.259501]  ? print_usage_bug+0xc0/0xc0
[  368.263562]  ? zap_class+0x640/0x640
[  368.267274]  ? print_usage_bug+0xc0/0xc0
[  368.271332]  ? print_usage_bug+0xc0/0xc0
[  368.275388]  ? zap_class+0x640/0x640
[  368.279101]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.284635]  ? find_held_lock+0x36/0x1c0
[  368.288709]  ? mark_held_locks+0xc7/0x130
[  368.292857]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  368.297954]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  368.303316]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  368.307894]  ? trace_hardirqs_on+0xbd/0x310
[  368.312209]  ? kasan_check_read+0x11/0x20
[  368.316351]  ? ___ratelimit+0x3b4/0x672
[  368.320327]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.325426]  ? trace_hardirqs_on+0x310/0x310
[  368.329831]  ? lock_downgrade+0x900/0x900
[  368.333981]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  368.339084]  ? ___ratelimit+0x3b9/0x672
[  368.343057]  ? idr_get_free+0xf70/0xf70
[  368.347027]  ? find_held_lock+0x36/0x1c0
[  368.351095]  oom_kill_process.cold.27+0x10/0x903
[  368.355851]  ? zap_class+0x640/0x640
[  368.359559]  ? check_preemption_disabled+0x48/0x280
[  368.364577]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.369506]  ? kasan_check_read+0x11/0x20
[  368.373657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.378928]  ? oom_evaluate_task+0x540/0x540
[  368.383337]  ? find_held_lock+0x36/0x1c0
[  368.387399]  ? out_of_memory+0x974/0x1430
[  368.391560]  ? lock_downgrade+0x900/0x900
[  368.395706]  ? check_preemption_disabled+0x48/0x280
[  368.400729]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.405656]  ? kasan_check_read+0x11/0x20
[  368.409800]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.415083]  ? rcu_softirq_qs+0x20/0x20
[  368.419057]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.424588]  ? oom_evaluate_task+0x302/0x540
[  368.428995]  out_of_memory+0xa84/0x1430
[  368.432972]  ? oom_killer_disable+0x3a0/0x3a0
[  368.437464]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  368.442615]  ? __ww_mutex_check_waiters+0x160/0x160
[  368.447651]  __alloc_pages_slowpath+0x2354/0x2e10
[  368.452515]  ? warn_alloc+0x120/0x120
[  368.456308]  ? mark_held_locks+0x130/0x130
[  368.460542]  ? find_get_entry+0xaae/0x1120
[  368.464785]  ? filemap_map_pages+0x1a20/0x1a20
[  368.469365]  ? zap_class+0x640/0x640
[  368.473081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.478612]  ? check_preemption_disabled+0x48/0x280
[  368.483626]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.489162]  ? should_fail+0x22d/0xd01
[  368.493047]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.498149]  ? zap_class+0x640/0x640
[  368.501882]  ? __lock_is_held+0xb5/0x140
[  368.505942]  ? mark_held_locks+0x130/0x130
[  368.510177]  ? lock_release+0xa00/0xa00
[  368.514175]  ? perf_trace_sched_process_exec+0x860/0x860
[  368.519618]  ? xa_load+0x2ba/0x460
[  368.523161]  ? lock_downgrade+0x900/0x900
[  368.527308]  ? __might_sleep+0x95/0x190
[  368.531285]  __alloc_pages_nodemask+0xa80/0xde0
[  368.535957]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  368.540972]  ? __page_cache_alloc+0x191/0x5c0
[  368.545463]  ? xa_load+0x2e1/0x460
[  368.548999]  ? xa_clear_mark+0x40/0x40
[  368.552884]  ? zap_class+0x640/0x640
[  368.556602]  ? zap_class+0x640/0x640
[  368.560318]  ? zap_class+0x640/0x640
[  368.564025]  ? __do_page_cache_readahead+0x663/0x810
[  368.569126]  ? find_held_lock+0x36/0x1c0
[  368.573189]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  368.578729]  alloc_pages_current+0x173/0x350
[  368.583136]  __page_cache_alloc+0x38c/0x5c0
[  368.587449]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.592373]  ? kasan_check_read+0x11/0x20
[  368.596515]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.601786]  ? generic_perform_write+0x6a0/0x6a0
[  368.606541]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.612074]  ? check_preemption_disabled+0x48/0x280
[  368.617092]  filemap_fault+0x1595/0x25f0
[  368.621160]  ? __lock_page_or_retry+0xa00/0xa00
[  368.625981]  ? mark_held_locks+0x130/0x130
[  368.630222]  ? filemap_map_pages+0xd6b/0x1a20
[  368.634720]  ? lock_downgrade+0x900/0x900
[  368.638869]  ? check_preemption_disabled+0x48/0x280
[  368.643885]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.648807]  ? kasan_check_read+0x11/0x20
[  368.652949]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.658221]  ? rcu_softirq_qs+0x20/0x20
[  368.662206]  ? filemap_map_pages+0xd92/0x1a20
[  368.666719]  ? find_get_entries_tag+0x1400/0x1400
[  368.671554]  ? find_held_lock+0x36/0x1c0
[  368.675639]  ? lock_acquire+0x1ed/0x520
[  368.679619]  ? ext4_filemap_fault+0x7a/0xad
[  368.683946]  ? lock_release+0xa00/0xa00
[  368.687915]  ? perf_trace_sched_process_exec+0x860/0x860
[  368.693360]  ? print_usage_bug+0xc0/0xc0
[  368.697430]  ? down_read+0x8d/0x120
[  368.701049]  ? ext4_filemap_fault+0x7a/0xad
[  368.705457]  ? __down_interruptible+0x700/0x700
[  368.710125]  ? find_held_lock+0x36/0x1c0
[  368.714184]  ext4_filemap_fault+0x82/0xad
[  368.718328]  __do_fault+0x100/0x6b0
[  368.721949]  ? lock_downgrade+0x900/0x900
[  368.726099]  ? pmd_devmap_trans_unstable+0x220/0x220
[  368.731204]  ? kasan_check_read+0x11/0x20
[  368.735359]  ? do_raw_spin_unlock+0xa7/0x330
[  368.739767]  ? do_raw_spin_trylock+0x270/0x270
[  368.744357]  __handle_mm_fault+0x3ea0/0x5be0
[  368.748766]  ? perf_trace_lock+0x7a0/0x7a0
[  368.753004]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  368.757847]  ? __switch_to_asm+0x34/0x70
[  368.761916]  ? __switch_to_asm+0x34/0x70
[  368.765983]  ? zap_class+0x640/0x640
[  368.769691]  ? zap_class+0x640/0x640
[  368.773402]  ? __x64_sys_futex+0x53e/0x6a0
[  368.777646]  ? find_held_lock+0x36/0x1c0
[  368.781719]  ? handle_mm_fault+0x42a/0xc70
[  368.785949]  ? lock_downgrade+0x900/0x900
[  368.790090]  ? check_preemption_disabled+0x48/0x280
[  368.795102]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  368.800025]  ? kasan_check_read+0x11/0x20
[  368.804166]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.809450]  ? rcu_softirq_qs+0x20/0x20
[  368.813444]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.818637]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.824185]  ? check_preemption_disabled+0x48/0x280
[  368.829203]  handle_mm_fault+0x54f/0xc70
[  368.833262]  ? __handle_mm_fault+0x5be0/0x5be0
[  368.837856]  ? find_vma+0x34/0x190
[  368.841399]  __do_page_fault+0x5e8/0xe60
[  368.845453]  ? trace_hardirqs_off+0xb8/0x310
[  368.849865]  do_page_fault+0xf2/0x7e0
[  368.853674]  ? vmalloc_sync_all+0x30/0x30
[  368.857817]  ? error_entry+0x70/0xd0
[  368.861524]  ? trace_hardirqs_off_caller+0xbb/0x310
[  368.866537]  ? trace_hardirqs_on_caller+0xc0/0x310
[  368.871460]  ? syscall_return_slowpath+0x5e0/0x5e0
[  368.876385]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.881226]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.886235]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  368.891687]  ? prepare_exit_to_usermode+0x291/0x3b0
[  368.897154]  ? page_fault+0x8/0x30
[  368.900706]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.905551]  ? page_fault+0x8/0x30
[  368.909088]  page_fault+0x1e/0x30
[  368.912655] RIP: 0033:0x404068
[  368.915942] Code: Bad RIP value.
[  368.919300] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  368.924660] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  368.931922] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  368.939188] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  368.946450] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  368.953714] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  368.960999] warn_alloc_show_mem: 1 callbacks suppressed
[  368.961008] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  368.961010] Mem-Info:
[  368.961042] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  368.961042]  active_file:13 inactive_file:13 isolated_file:0
[  368.961042]  unevictable:0 dirty:0 writeback:0 unstable:0
[  368.961042]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  368.961042]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  368.961042]  free:13747 free_pcp:348 free_cma:0
[  368.966370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  368.966377] Call Trace:
[  368.973734] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  368.976121]  <IRQ>
[  369.009325] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  369.018673]  dump_stack+0x244/0x39d
[  369.021228] lowmem_reserve[]: 0 2818 6321 6321
[  369.049066]  ? dump_stack_print_info.cold.1+0x20/0x20
[  369.051188] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  369.077834]  warn_alloc.cold.116+0xb7/0x1bd
[  369.081430] lowmem_reserve[]: 0 0 3503 3503
[  369.086087]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  369.091245] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  369.118862]  ? lock_downgrade+0x900/0x900
[  369.123153] lowmem_reserve[]: 0 0 0 0
[  369.127471]  ? trace_hardirqs_off+0xb8/0x310
[  369.132278] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  369.161521]  ? trace_hardirqs_off+0xb8/0x310
[  369.165645] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  369.169442]  __alloc_pages_slowpath+0x26e8/0x2e10
[  369.173817] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  369.187355]  ? warn_alloc+0x120/0x120
[  369.191720] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  369.206622]  ? print_usage_bug+0xc0/0xc0
[  369.211453] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  369.226608]  ? warn_alloc+0x120/0x120
[  369.230386] 4484 total pagecache pages
[  369.239208]  ? warn_alloc+0x120/0x120
[  369.243244] 0 pages in swap cache
[  369.251802]  ? print_usage_bug+0xc0/0xc0
[  369.255582] Swap cache stats: add 0, delete 0, find 0/0
[  369.259453]  ? print_usage_bug+0xc0/0xc0
[  369.263222] Free swap  = 0kB
[  369.266663]  ? __lock_acquire+0x62f/0x4c20
[  369.270694] Total swap = 0kB
[  369.276140]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.280165] 1965979 pages RAM
[  369.283169]  ? should_fail+0x22d/0xd01
[  369.287374] 0 pages HighMem/MovableOnly
[  369.290384]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  369.295888] 342854 pages reserved
[  369.298982]  ? __lock_acquire+0x62f/0x4c20
[  369.302838] 0 pages cma reserved
[  369.306801]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  369.311928] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  369.315309]  ? __lock_acquire+0x62f/0x4c20
[  369.315324]  ? should_fail+0x22d/0xd01
[  369.319623] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  369.322890]  ? find_held_lock+0x36/0x1c0
[  369.327963] syz-fuzzer cpuset=/ mems_allowed=0
[  369.334447]  ? mark_held_locks+0x130/0x130
[  369.365572]  ? mark_held_locks+0x130/0x130
[  369.369799]  ? zap_class+0x640/0x640
[  369.373511]  ? zap_class+0x640/0x640
[  369.377223]  ? print_usage_bug+0xc0/0xc0
[  369.381278]  ? do_raw_spin_unlock+0xa7/0x330
[  369.385682]  ? zap_class+0x640/0x640
[  369.389395]  ? print_usage_bug+0xc0/0xc0
[  369.393451]  ? wq_watchdog_touch+0x9c/0xfe
[  369.397683]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.403216]  ? check_preemption_disabled+0x48/0x280
[  369.408238]  ? __lock_is_held+0xb5/0x140
[  369.412299]  __alloc_pages_nodemask+0xa80/0xde0
[  369.416966]  ? zap_class+0x640/0x640
[  369.420681]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  369.425701]  ? find_held_lock+0x36/0x1c0
[  369.429768]  ? ____cache_alloc_node+0x1c7/0x1e0
[  369.434432]  ? lock_downgrade+0x900/0x900
[  369.438590]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.444129]  cache_grow_begin+0xa5/0x8c0
[  369.448192]  ? do_raw_spin_unlock+0xa7/0x330
[  369.452624]  fallback_alloc+0x204/0x2e0
[  369.456601]  ____cache_alloc_node+0x1c7/0x1e0
[  369.461099]  kmem_cache_alloc_node+0xe3/0x730
[  369.465594]  ? ipv6_get_ifaddr+0x42e/0x620
[  369.469847]  __alloc_skb+0x119/0x770
[  369.473565]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.478843]  ? netdev_alloc_frag+0x1f0/0x1f0
[  369.483244]  ? lock_downgrade+0x900/0x900
[  369.487391]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.492924]  ? refcount_sub_and_test_checked+0x203/0x310
[  369.498371]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  369.503819]  ? addrconf_rs_timer+0x690/0x690
[  369.508235]  ndisc_alloc_skb+0x144/0x340
[  369.512305]  ndisc_send_rs+0x331/0x6e0
[  369.516287]  addrconf_rs_timer+0x314/0x690
[  369.520529]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.524777]  call_timer_fn+0x272/0x920
[  369.528660]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.532889]  ? process_timeout+0x40/0x40
[  369.536953]  ? __run_timers+0x7da/0xc70
[  369.540938]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.545424]  ? _raw_spin_unlock_irq+0x27/0x80
[  369.549915]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.554147]  ? lockdep_hardirqs_on+0x296/0x5b0
[  369.558747]  ? trace_hardirqs_on+0xbd/0x310
[  369.563153]  ? kasan_check_read+0x11/0x20
[  369.567297]  ? __run_timers+0x7da/0xc70
[  369.571266]  ? trace_hardirqs_off_caller+0x310/0x310
[  369.576477]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.580713]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  369.584944]  __run_timers+0x7e5/0xc70
[  369.588752]  ? timer_fixup_init+0x70/0x70
[  369.592897]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  369.597997]  ? zap_class+0x640/0x640
[  369.601713]  ? enqueue_hrtimer+0x1a5/0x560
[  369.605944]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  369.611136]  ? find_held_lock+0x36/0x1c0
[  369.615197]  ? zap_class+0x640/0x640
[  369.618913]  ? pvclock_read_flags+0x160/0x160
[  369.623412]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.628945]  ? check_preemption_disabled+0x48/0x280
[  369.633965]  ? __lock_is_held+0xb5/0x140
[  369.638023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.643560]  ? check_preemption_disabled+0x48/0x280
[  369.648579]  run_timer_softirq+0x52/0xb0
[  369.652639]  ? rcu_read_lock_sched_held+0x14f/0x180
[  369.657655]  __do_softirq+0x308/0xb7e
[  369.661453]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  369.665942]  ? lock_downgrade+0x900/0x900
[  369.670096]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  369.675202]  ? pvclock_read_flags+0x160/0x160
[  369.679696]  ? lapic_next_event+0x5a/0x90
[  369.683841]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.689380]  ? kvm_clock_read+0x18/0x30
[  369.693351]  ? kvm_sched_clock_read+0x9/0x20
[  369.697758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.703289]  ? check_preemption_disabled+0x48/0x280
[  369.708311]  irq_exit+0x17f/0x1c0
[  369.711760]  smp_apic_timer_interrupt+0x1cb/0x760
[  369.716617]  ? smp_reschedule_interrupt+0x109/0x650
[  369.721632]  ? smp_call_function_single_interrupt+0x650/0x650
[  369.727513]  ? interrupt_entry+0xb5/0xc0
[  369.731577]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.736619]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.741662]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.746501]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.751536]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.756551]  ? task_prio+0x50/0x50
[  369.760088]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.765623]  ? check_preemption_disabled+0x48/0x280
[  369.770639]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.775485]  apic_timer_interrupt+0xf/0x20
[  369.779710]  </IRQ>
[  369.781944] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  369.786874] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  369.805769] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  369.813643] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  369.820923] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  369.828189] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  369.835449] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  369.842720] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  369.850019]  skb_clone+0x1bb/0x500
[  369.853556]  ? finish_task_switch+0x2f4/0x910
[  369.858048]  ? skb_split+0x11e0/0x11e0
[  369.861938]  ? preempt_notifier_register+0x200/0x200
[  369.867038]  ? __switch_to_asm+0x34/0x70
[  369.871099]  ? __switch_to_asm+0x34/0x70
[  369.875248]  ? __switch_to_asm+0x40/0x70
[  369.879305]  ? __switch_to_asm+0x34/0x70
[  369.883551]  ? __switch_to_asm+0x40/0x70
[  369.887613]  ? __switch_to_asm+0x34/0x70
[  369.891666]  ? __switch_to_asm+0x40/0x70
[  369.895720]  ? __switch_to_asm+0x34/0x70
[  369.899775]  ? __switch_to_asm+0x34/0x70
[  369.903833]  ? __switch_to_asm+0x40/0x70
[  369.907889]  ? __switch_to_asm+0x34/0x70
[  369.911950]  bpf_clone_redirect+0xb9/0x490
[  369.916183]  ? __schedule+0x8d7/0x21d0
[  369.920079]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  369.925094]  ? __sched_text_start+0x8/0x8
[  369.929235]  ? retint_kernel+0x2d/0x2d
[  369.933128]  ? find_held_lock+0x36/0x1c0
[  369.937192]  ? lock_acquire+0x1ed/0x520
[  369.941162]  ? bpf_test_run+0x3cb/0x780
[  369.945134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.950667]  ? check_preemption_disabled+0x48/0x280
[  369.955685]  ? kasan_check_read+0x11/0x20
[  369.959831]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.965104]  ? rcu_softirq_qs+0x20/0x20
[  369.969081]  ? preempt_schedule+0x4d/0x60
[  369.973222]  ? ___preempt_schedule+0x16/0x18
[  369.977632]  ? bpf_test_run+0x25d/0x780
[  369.981621]  ? netlink_diag_dump+0x2a0/0x2a0
[  369.986026]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.991558]  ? bpf_test_init.isra.10+0x70/0x100
[  369.996225]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  370.000983]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  370.005819]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  370.011354]  ? fput+0x130/0x1a0
[  370.014628]  ? __bpf_prog_get+0x9b/0x290
[  370.018688]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  370.023529]  ? bpf_prog_test_run+0x130/0x1a0
[  370.027937]  ? __x64_sys_bpf+0x3d8/0x520
[  370.031993]  ? bpf_prog_get+0x20/0x20
[  370.035806]  ? do_syscall_64+0x1b9/0x820
[  370.039867]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  370.045224]  ? syscall_return_slowpath+0x5e0/0x5e0
[  370.050159]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.054996]  ? trace_hardirqs_on_caller+0x310/0x310
[  370.060011]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  370.065023]  ? prepare_exit_to_usermode+0x291/0x3b0
[  370.070067]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.074909]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  370.080284] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  370.080346] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  370.087291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  370.087295] Call Trace:
[  370.087301]  <IRQ>
[  370.087318]  dump_stack+0x244/0x39d
[  370.087336]  ? dump_stack_print_info.cold.1+0x20/0x20
[  370.093848] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  370.103151]  warn_alloc.cold.116+0xb7/0x1bd
[  370.105699] syz-executor2 cpuset=syz2 mems_allowed=0
[  370.107838]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  370.141449]  ? lock_downgrade+0x900/0x900
[  370.145612]  ? trace_hardirqs_off+0xb8/0x310
[  370.150034]  ? trace_hardirqs_off+0xb8/0x310
[  370.154443]  __alloc_pages_slowpath+0x26e8/0x2e10
[  370.159304]  ? warn_alloc+0x120/0x120
[  370.163102]  ? print_usage_bug+0xc0/0xc0
[  370.167156]  ? warn_alloc+0x120/0x120
[  370.170959]  ? warn_alloc+0x120/0x120
[  370.174754]  ? print_usage_bug+0xc0/0xc0
[  370.178808]  ? kvm_clock_read+0x18/0x30
[  370.182779]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  370.187790]  ? print_usage_bug+0xc0/0xc0
[  370.191845]  ? __lock_acquire+0x62f/0x4c20
[  370.196170]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.201701]  ? should_fail+0x22d/0xd01
[  370.205586]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.210861]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.215958]  ? __lock_acquire+0x62f/0x4c20
[  370.220192]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.225305]  ? __lock_acquire+0x62f/0x4c20
[  370.229532]  ? should_fail+0x22d/0xd01
[  370.233417]  ? rcu_irq_exit+0x1a2/0x390
[  370.237500]  ? mark_held_locks+0x130/0x130
[  370.241736]  ? mark_held_locks+0x130/0x130
[  370.246057]  ? mark_held_locks+0xc7/0x130
[  370.250220]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  370.255234]  ? zap_class+0x640/0x640
[  370.258941]  ? print_usage_bug+0xc0/0xc0
[  370.263001]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.268534]  ? check_preemption_disabled+0x48/0x280
[  370.273560]  ? __lock_is_held+0xb5/0x140
[  370.277618]  __alloc_pages_nodemask+0xa80/0xde0
[  370.282279]  ? zap_class+0x640/0x640
[  370.285995]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  370.291030]  ? find_held_lock+0x36/0x1c0
[  370.295093]  ? ____cache_alloc_node+0x1c7/0x1e0
[  370.299764]  ? lock_downgrade+0x900/0x900
[  370.303916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.309451]  cache_grow_begin+0xa5/0x8c0
[  370.313511]  ? do_raw_spin_unlock+0xa7/0x330
[  370.317922]  fallback_alloc+0x204/0x2e0
[  370.321919]  ____cache_alloc_node+0x1c7/0x1e0
[  370.326414]  kmem_cache_alloc_node+0xe3/0x730
[  370.330907]  ? ipv6_get_ifaddr+0x42e/0x620
[  370.335145]  __alloc_skb+0x119/0x770
[  370.338854]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.344133]  ? netdev_alloc_frag+0x1f0/0x1f0
[  370.348541]  ? lock_downgrade+0x900/0x900
[  370.352690]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.358223]  ? refcount_sub_and_test_checked+0x203/0x310
[  370.363668]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  370.369132]  ? addrconf_rs_timer+0x690/0x690
[  370.373560]  ndisc_alloc_skb+0x144/0x340
[  370.377624]  ndisc_send_rs+0x331/0x6e0
[  370.381515]  addrconf_rs_timer+0x314/0x690
[  370.385753]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.389999]  call_timer_fn+0x272/0x920
[  370.393881]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.398111]  ? process_timeout+0x40/0x40
[  370.402180]  ? mark_held_locks+0xc7/0x130
[  370.406330]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.410835]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.415323]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.419555]  ? lockdep_hardirqs_on+0x296/0x5b0
[  370.424139]  ? trace_hardirqs_on+0xbd/0x310
[  370.428458]  ? kasan_check_read+0x11/0x20
[  370.432622]  ? __run_timers+0x7da/0xc70
[  370.436592]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.441693]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.445927]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.450157]  __run_timers+0x7e5/0xc70
[  370.453960]  ? timer_fixup_init+0x70/0x70
[  370.458110]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  370.463124]  ? zap_class+0x640/0x640
[  370.466837]  ? print_usage_bug+0xc0/0xc0
[  370.470896]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  370.476087]  ? find_held_lock+0x36/0x1c0
[  370.480148]  ? zap_class+0x640/0x640
[  370.483869]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.489404]  ? check_preemption_disabled+0x48/0x280
[  370.494423]  ? __lock_is_held+0xb5/0x140
[  370.498576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.504109]  ? check_preemption_disabled+0x48/0x280
[  370.509127]  run_timer_softirq+0x52/0xb0
[  370.513180]  ? rcu_read_lock_sched_held+0x14f/0x180
[  370.518189]  __do_softirq+0x308/0xb7e
[  370.521986]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  370.526483]  ? lock_downgrade+0x900/0x900
[  370.530635]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  370.535739]  ? pvclock_read_flags+0x160/0x160
[  370.540232]  ? lapic_next_event+0x5a/0x90
[  370.544382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.549922]  ? kvm_clock_read+0x18/0x30
[  370.553897]  ? kvm_sched_clock_read+0x9/0x20
[  370.558303]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.563839]  ? check_preemption_disabled+0x48/0x280
[  370.568862]  irq_exit+0x17f/0x1c0
[  370.572312]  smp_apic_timer_interrupt+0x1cb/0x760
[  370.577151]  ? smp_call_function_single_interrupt+0x650/0x650
[  370.583030]  ? interrupt_entry+0xb5/0xc0
[  370.587091]  ? trace_hardirqs_off_caller+0xbb/0x310
[  370.592104]  ? trace_hardirqs_off_caller+0xbb/0x310
[  370.597118]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.601955]  ? trace_hardirqs_on_caller+0x310/0x310
[  370.606981]  ? trace_hardirqs_on_caller+0x310/0x310
[  370.611994]  ? task_prio+0x50/0x50
[  370.615537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.621068]  ? check_preemption_disabled+0x48/0x280
[  370.626086]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.630931]  apic_timer_interrupt+0xf/0x20
[  370.635243]  </IRQ>
[  370.637479] RIP: 0010:dump_stack+0x358/0x39d
[  370.641884] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  370.660980] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  370.668688] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  370.675950] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  370.684098] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  370.691358] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  370.698705] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  370.705982]  ? dump_stack+0x34f/0x39d
[  370.709795]  ? dump_stack_print_info.cold.1+0x20/0x20
[  370.714986]  ? mark_held_locks+0x130/0x130
[  370.719228]  ? mark_held_locks+0x130/0x130
[  370.723471]  dump_header+0x27b/0xf72
[  370.727197]  ? pagefault_out_of_memory+0x197/0x197
[  370.732130]  ? __lock_acquire+0x62f/0x4c20
[  370.736365]  ? percpu_ref_get_many+0x240/0x240
[  370.740947]  ? print_usage_bug+0xc0/0xc0
[  370.745012]  ? zap_class+0x640/0x640
[  370.748724]  ? print_usage_bug+0xc0/0xc0
[  370.752796]  ? print_usage_bug+0xc0/0xc0
[  370.756853]  ? zap_class+0x640/0x640
[  370.760567]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.766101]  ? find_held_lock+0x36/0x1c0
[  370.770186]  ? mark_held_locks+0xc7/0x130
[  370.774328]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  370.779422]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  370.784529]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  370.789109]  ? trace_hardirqs_on+0xbd/0x310
[  370.793442]  ? kasan_check_read+0x11/0x20
[  370.797601]  ? ___ratelimit+0x3b4/0x672
[  370.801589]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.806688]  ? trace_hardirqs_on+0x310/0x310
[  370.811093]  ? lock_downgrade+0x900/0x900
[  370.815243]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  370.820431]  ? ___ratelimit+0x3b9/0x672
[  370.824406]  ? idr_get_free+0xf70/0xf70
[  370.828384]  ? find_held_lock+0x36/0x1c0
[  370.832458]  oom_kill_process.cold.27+0x10/0x903
[  370.837209]  ? zap_class+0x640/0x640
[  370.840921]  ? check_preemption_disabled+0x48/0x280
[  370.846032]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.850957]  ? kasan_check_read+0x11/0x20
[  370.855110]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.860385]  ? oom_evaluate_task+0x540/0x540
[  370.864794]  ? find_held_lock+0x36/0x1c0
[  370.868857]  ? out_of_memory+0x974/0x1430
[  370.873006]  ? lock_downgrade+0x900/0x900
[  370.877258]  ? check_preemption_disabled+0x48/0x280
[  370.882272]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  370.887196]  ? kasan_check_read+0x11/0x20
[  370.891343]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.897084]  ? rcu_softirq_qs+0x20/0x20
[  370.901058]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.906589]  ? oom_evaluate_task+0x302/0x540
[  370.911083]  out_of_memory+0xa84/0x1430
[  370.915062]  ? oom_killer_disable+0x3a0/0x3a0
[  370.919558]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  370.924491]  ? __ww_mutex_check_waiters+0x160/0x160
[  370.929517]  __alloc_pages_slowpath+0x2354/0x2e10
[  370.934381]  ? warn_alloc+0x120/0x120
[  370.938181]  ? mark_held_locks+0x130/0x130
[  370.942416]  ? find_get_entry+0xaae/0x1120
[  370.946659]  ? filemap_map_pages+0x1a20/0x1a20
[  370.951241]  ? zap_class+0x640/0x640
[  370.954970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.960528]  ? check_preemption_disabled+0x48/0x280
[  370.965540]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.971074]  ? should_fail+0x22d/0xd01
[  370.974961]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.980061]  ? zap_class+0x640/0x640
[  370.983798]  ? __lock_is_held+0xb5/0x140
[  370.987865]  ? mark_held_locks+0x130/0x130
[  370.992099]  ? lock_release+0xa00/0xa00
[  370.996076]  ? perf_trace_sched_process_exec+0x860/0x860
[  371.001522]  ? xa_load+0x2ba/0x460
[  371.005058]  ? lock_downgrade+0x900/0x900
[  371.009208]  ? __might_sleep+0x95/0x190
[  371.013186]  __alloc_pages_nodemask+0xa80/0xde0
[  371.017857]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  371.022868]  ? __page_cache_alloc+0x191/0x5c0
[  371.027360]  ? xa_load+0x2e1/0x460
[  371.030991]  ? xa_clear_mark+0x40/0x40
[  371.034964]  ? zap_class+0x640/0x640
[  371.038680]  ? zap_class+0x640/0x640
[  371.042417]  ? zap_class+0x640/0x640
[  371.046225]  ? __do_page_cache_readahead+0x663/0x810
[  371.051333]  ? find_held_lock+0x36/0x1c0
[  371.055398]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  371.060945]  alloc_pages_current+0x173/0x350
[  371.065617]  __page_cache_alloc+0x38c/0x5c0
[  371.069941]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  371.074865]  ? kasan_check_read+0x11/0x20
[  371.079010]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.084392]  ? generic_perform_write+0x6a0/0x6a0
[  371.089241]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.094774]  ? check_preemption_disabled+0x48/0x280
[  371.099790]  filemap_fault+0x1595/0x25f0
[  371.104032]  ? __lock_page_or_retry+0xa00/0xa00
[  371.108696]  ? mark_held_locks+0x130/0x130
[  371.112938]  ? filemap_map_pages+0xd6b/0x1a20
[  371.117517]  ? lock_downgrade+0x900/0x900
[  371.121661]  ? check_preemption_disabled+0x48/0x280
[  371.126675]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  371.131598]  ? kasan_check_read+0x11/0x20
[  371.135744]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.141018]  ? rcu_softirq_qs+0x20/0x20
[  371.144998]  ? filemap_map_pages+0xd92/0x1a20
[  371.149506]  ? find_get_entries_tag+0x1400/0x1400
[  371.154434]  ? find_held_lock+0x36/0x1c0
[  371.158528]  ? lock_acquire+0x1ed/0x520
[  371.162496]  ? ext4_filemap_fault+0x7a/0xad
[  371.166818]  ? lock_release+0xa00/0xa00
[  371.170784]  ? perf_trace_sched_process_exec+0x860/0x860
[  371.176233]  ? print_usage_bug+0xc0/0xc0
[  371.180304]  ? down_read+0x8d/0x120
[  371.183924]  ? ext4_filemap_fault+0x7a/0xad
[  371.188244]  ? __down_interruptible+0x700/0x700
[  371.193010]  ? find_held_lock+0x36/0x1c0
[  371.197069]  ext4_filemap_fault+0x82/0xad
[  371.201229]  __do_fault+0x100/0x6b0
[  371.204851]  ? lock_downgrade+0x900/0x900
[  371.208996]  ? pmd_devmap_trans_unstable+0x220/0x220
[  371.214099]  ? kasan_check_read+0x11/0x20
[  371.218242]  ? do_raw_spin_unlock+0xa7/0x330
[  371.222646]  ? do_raw_spin_trylock+0x270/0x270
[  371.227240]  __handle_mm_fault+0x3ea0/0x5be0
[  371.231644]  ? perf_trace_lock+0x7a0/0x7a0
[  371.235891]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  371.240751]  ? __switch_to_asm+0x34/0x70
[  371.244804]  ? __switch_to_asm+0x34/0x70
[  371.248870]  ? zap_class+0x640/0x640
[  371.252575]  ? zap_class+0x640/0x640
[  371.256286]  ? __x64_sys_futex+0x53e/0x6a0
[  371.260524]  ? find_held_lock+0x36/0x1c0
[  371.264589]  ? handle_mm_fault+0x42a/0xc70
[  371.268822]  ? lock_downgrade+0x900/0x900
[  371.272970]  ? check_preemption_disabled+0x48/0x280
[  371.277984]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  371.282906]  ? kasan_check_read+0x11/0x20
[  371.287049]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.292321]  ? rcu_softirq_qs+0x20/0x20
[  371.296287]  ? trace_hardirqs_off_caller+0x310/0x310
[  371.301384]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.306922]  ? check_preemption_disabled+0x48/0x280
[  371.311941]  handle_mm_fault+0x54f/0xc70
[  371.316002]  ? __handle_mm_fault+0x5be0/0x5be0
[  371.320579]  ? find_vma+0x34/0x190
[  371.324120]  __do_page_fault+0x5e8/0xe60
[  371.328178]  ? trace_hardirqs_off+0xb8/0x310
[  371.332594]  do_page_fault+0xf2/0x7e0
[  371.336387]  ? vmalloc_sync_all+0x30/0x30
[  371.340537]  ? error_entry+0x70/0xd0
[  371.344263]  ? trace_hardirqs_off_caller+0xbb/0x310
[  371.349275]  ? trace_hardirqs_on_caller+0xc0/0x310
[  371.354199]  ? syscall_return_slowpath+0x5e0/0x5e0
[  371.359124]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.363961]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.368976]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  371.374429]  ? prepare_exit_to_usermode+0x291/0x3b0
[  371.379440]  ? page_fault+0x8/0x30
[  371.382982]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.387908]  ? page_fault+0x8/0x30
[  371.391451]  page_fault+0x1e/0x30
[  371.394993] RIP: 0033:0x404068
[  371.398199] Code: Bad RIP value.
[  371.401564] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  371.406930] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  371.414190] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  371.421459] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  371.428723] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  371.435998] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  371.443287] warn_alloc_show_mem: 1 callbacks suppressed
[  371.443296] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  371.443298] Mem-Info:
[  371.443328] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  371.443328]  active_file:13 inactive_file:13 isolated_file:0
[  371.443328]  unevictable:0 dirty:0 writeback:0 unstable:0
[  371.443328]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  371.443328]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  371.443328]  free:13747 free_pcp:348 free_cma:0
[  371.448656] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  371.448663] Call Trace:
[  371.456021] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  371.458414]  <IRQ>
[  371.491444] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  371.500963]  dump_stack+0x244/0x39d
[  371.503515] lowmem_reserve[]: 0 2818 6321 6321
[  371.531362]  ? dump_stack_print_info.cold.1+0x20/0x20
[  371.533502] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  371.559622]  warn_alloc.cold.116+0xb7/0x1bd
[  371.563206] lowmem_reserve[]: 0 0 3503 3503
[  371.567796]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  371.572977] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  371.600463]  ? lock_downgrade+0x900/0x900
[  371.604753] lowmem_reserve[]: 0 0 0 0
[  371.609169]  ? trace_hardirqs_off+0xb8/0x310
[  371.613976] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  371.643311]  ? trace_hardirqs_off+0xb8/0x310
[  371.647438] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  371.651233]  __alloc_pages_slowpath+0x26e8/0x2e10
[  371.655610] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  371.669146]  ? warn_alloc+0x120/0x120
[  371.673522] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  371.688417]  ? print_usage_bug+0xc0/0xc0
[  371.693238] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  371.708399]  ? warn_alloc+0x120/0x120
[  371.712170] 4484 total pagecache pages
[  371.721078]  ? warn_alloc+0x120/0x120
[  371.725115] 0 pages in swap cache
[  371.733669]  ? print_usage_bug+0xc0/0xc0
[  371.737444] Swap cache stats: add 0, delete 0, find 0/0
[  371.741332]  ? print_usage_bug+0xc0/0xc0
[  371.745119] Free swap  = 0kB
[  371.748579]  ? __lock_acquire+0x62f/0x4c20
[  371.752631] Total swap = 0kB
[  371.757989]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.762019] 1965979 pages RAM
[  371.765023]  ? should_fail+0x22d/0xd01
[  371.769225] 0 pages HighMem/MovableOnly
[  371.772236]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.777742] 342854 pages reserved
[  371.780857]  ? __lock_acquire+0x62f/0x4c20
[  371.784713] 0 pages cma reserved
[  371.788678]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.793810] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  371.797190]  ? __lock_acquire+0x62f/0x4c20
[  371.797203]  ? should_fail+0x22d/0xd01
[  371.797218]  ? find_held_lock+0x36/0x1c0
[  371.801485] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  371.804791]  ? mark_held_locks+0x130/0x130
[  371.809861] syz-fuzzer cpuset=/ mems_allowed=0
[  371.816344]  ? mark_held_locks+0x130/0x130
[  371.851656]  ? zap_class+0x640/0x640
[  371.855375]  ? zap_class+0x640/0x640
[  371.859089]  ? print_usage_bug+0xc0/0xc0
[  371.863145]  ? do_raw_spin_unlock+0xa7/0x330
[  371.867553]  ? zap_class+0x640/0x640
[  371.871263]  ? print_usage_bug+0xc0/0xc0
[  371.875321]  ? wq_watchdog_touch+0x9c/0xfe
[  371.879553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.885090]  ? check_preemption_disabled+0x48/0x280
[  371.890110]  ? __lock_is_held+0xb5/0x140
[  371.894175]  __alloc_pages_nodemask+0xa80/0xde0
[  371.898847]  ? zap_class+0x640/0x640
[  371.902649]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  371.907670]  ? find_held_lock+0x36/0x1c0
[  371.911734]  ? ____cache_alloc_node+0x1c7/0x1e0
[  371.916399]  ? lock_downgrade+0x900/0x900
[  371.920568]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.926105]  cache_grow_begin+0xa5/0x8c0
[  371.930173]  ? do_raw_spin_unlock+0xa7/0x330
[  371.934587]  fallback_alloc+0x204/0x2e0
[  371.938565]  ____cache_alloc_node+0x1c7/0x1e0
[  371.943060]  kmem_cache_alloc_node+0xe3/0x730
[  371.947552]  ? ipv6_get_ifaddr+0x42e/0x620
[  371.951790]  __alloc_skb+0x119/0x770
[  371.955497]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.960773]  ? netdev_alloc_frag+0x1f0/0x1f0
[  371.965180]  ? lock_downgrade+0x900/0x900
[  371.969329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.974880]  ? refcount_sub_and_test_checked+0x203/0x310
[  371.980332]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  371.985783]  ? addrconf_rs_timer+0x690/0x690
[  371.990197]  ndisc_alloc_skb+0x144/0x340
[  371.994256]  ndisc_send_rs+0x331/0x6e0
[  371.998150]  addrconf_rs_timer+0x314/0x690
[  372.002385]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.006624]  call_timer_fn+0x272/0x920
[  372.010510]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.014743]  ? process_timeout+0x40/0x40
[  372.018812]  ? __run_timers+0x7da/0xc70
[  372.022783]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.027275]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.031766]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.035994]  ? lockdep_hardirqs_on+0x296/0x5b0
[  372.040575]  ? trace_hardirqs_on+0xbd/0x310
[  372.044996]  ? kasan_check_read+0x11/0x20
[  372.049142]  ? __run_timers+0x7da/0xc70
[  372.053200]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.058307]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.062541]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.066766]  __run_timers+0x7e5/0xc70
[  372.070571]  ? timer_fixup_init+0x70/0x70
[  372.074716]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  372.079730]  ? zap_class+0x640/0x640
[  372.083532]  ? enqueue_hrtimer+0x1a5/0x560
[  372.087852]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  372.093046]  ? find_held_lock+0x36/0x1c0
[  372.097108]  ? zap_class+0x640/0x640
[  372.100819]  ? pvclock_read_flags+0x160/0x160
[  372.105422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.110957]  ? check_preemption_disabled+0x48/0x280
[  372.116140]  ? __lock_is_held+0xb5/0x140
[  372.120200]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.125736]  ? check_preemption_disabled+0x48/0x280
[  372.130758]  run_timer_softirq+0x52/0xb0
[  372.134827]  ? rcu_read_lock_sched_held+0x14f/0x180
[  372.139842]  __do_softirq+0x308/0xb7e
[  372.143642]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  372.148130]  ? lock_downgrade+0x900/0x900
[  372.152274]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  372.157377]  ? pvclock_read_flags+0x160/0x160
[  372.161875]  ? lapic_next_event+0x5a/0x90
[  372.166021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.171568]  ? kvm_clock_read+0x18/0x30
[  372.175625]  ? kvm_sched_clock_read+0x9/0x20
[  372.180030]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.185583]  ? check_preemption_disabled+0x48/0x280
[  372.190693]  irq_exit+0x17f/0x1c0
[  372.194164]  smp_apic_timer_interrupt+0x1cb/0x760
[  372.198998]  ? smp_reschedule_interrupt+0x109/0x650
[  372.204096]  ? smp_call_function_single_interrupt+0x650/0x650
[  372.209989]  ? interrupt_entry+0xb5/0xc0
[  372.214045]  ? trace_hardirqs_off_caller+0xbb/0x310
[  372.219053]  ? trace_hardirqs_off_caller+0xbb/0x310
[  372.224065]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.228906]  ? trace_hardirqs_on_caller+0x310/0x310
[  372.233917]  ? trace_hardirqs_on_caller+0x310/0x310
[  372.238926]  ? task_prio+0x50/0x50
[  372.242466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.248014]  ? check_preemption_disabled+0x48/0x280
[  372.253028]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.257888]  apic_timer_interrupt+0xf/0x20
[  372.262196]  </IRQ>
[  372.264445] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  372.269374] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  372.288272] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  372.295976] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  372.303243] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  372.310510] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  372.317772] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  372.325037] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  372.332348]  skb_clone+0x1bb/0x500
[  372.335994]  ? finish_task_switch+0x2f4/0x910
[  372.340490]  ? skb_split+0x11e0/0x11e0
[  372.344375]  ? preempt_notifier_register+0x200/0x200
[  372.349473]  ? __switch_to_asm+0x34/0x70
[  372.353527]  ? __switch_to_asm+0x34/0x70
[  372.357581]  ? __switch_to_asm+0x40/0x70
[  372.361645]  ? __switch_to_asm+0x34/0x70
[  372.365697]  ? __switch_to_asm+0x40/0x70
[  372.369838]  ? __switch_to_asm+0x34/0x70
[  372.373899]  ? __switch_to_asm+0x40/0x70
[  372.377951]  ? __switch_to_asm+0x34/0x70
[  372.382005]  ? __switch_to_asm+0x34/0x70
[  372.386057]  ? __switch_to_asm+0x40/0x70
[  372.390121]  ? __switch_to_asm+0x34/0x70
[  372.394184]  bpf_clone_redirect+0xb9/0x490
[  372.398415]  ? __schedule+0x8d7/0x21d0
[  372.402308]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  372.407339]  ? __sched_text_start+0x8/0x8
[  372.411484]  ? retint_kernel+0x2d/0x2d
[  372.415377]  ? find_held_lock+0x36/0x1c0
[  372.419441]  ? lock_acquire+0x1ed/0x520
[  372.423419]  ? bpf_test_run+0x3cb/0x780
[  372.427390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.432923]  ? check_preemption_disabled+0x48/0x280
[  372.437939]  ? kasan_check_read+0x11/0x20
[  372.442083]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.447354]  ? rcu_softirq_qs+0x20/0x20
[  372.451330]  ? preempt_schedule+0x4d/0x60
[  372.455477]  ? ___preempt_schedule+0x16/0x18
[  372.459893]  ? bpf_test_run+0x25d/0x780
[  372.463878]  ? netlink_diag_dump+0x2a0/0x2a0
[  372.468287]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.473825]  ? bpf_test_init.isra.10+0x70/0x100
[  372.478495]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  372.483253]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  372.488089]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  372.493623]  ? fput+0x130/0x1a0
[  372.496899]  ? __bpf_prog_get+0x9b/0x290
[  372.500959]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  372.505794]  ? bpf_prog_test_run+0x130/0x1a0
[  372.510203]  ? __x64_sys_bpf+0x3d8/0x520
[  372.514262]  ? bpf_prog_get+0x20/0x20
[  372.518074]  ? do_syscall_64+0x1b9/0x820
[  372.522130]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  372.527493]  ? syscall_return_slowpath+0x5e0/0x5e0
[  372.532416]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.537258]  ? trace_hardirqs_on_caller+0x310/0x310
[  372.542272]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  372.547292]  ? prepare_exit_to_usermode+0x291/0x3b0
[  372.552323]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.557166]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  372.562553] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  372.562616] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  372.569555] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  372.569560] Call Trace:
[  372.569565]  <IRQ>
[  372.569581]  dump_stack+0x244/0x39d
[  372.569599]  ? dump_stack_print_info.cold.1+0x20/0x20
[  372.576128] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  372.585430]  warn_alloc.cold.116+0xb7/0x1bd
[  372.587981] syz-executor2 cpuset=syz2 mems_allowed=0
[  372.590118]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  372.623573]  ? lock_downgrade+0x900/0x900
[  372.627727]  ? trace_hardirqs_off+0xb8/0x310
[  372.632136]  ? trace_hardirqs_off+0xb8/0x310
[  372.636547]  __alloc_pages_slowpath+0x26e8/0x2e10
[  372.641422]  ? warn_alloc+0x120/0x120
[  372.645223]  ? print_usage_bug+0xc0/0xc0
[  372.649283]  ? warn_alloc+0x120/0x120
[  372.653107]  ? warn_alloc+0x120/0x120
[  372.656905]  ? print_usage_bug+0xc0/0xc0
[  372.660968]  ? print_usage_bug+0xc0/0xc0
[  372.665027]  ? __lock_acquire+0x62f/0x4c20
[  372.669265]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.674806]  ? should_fail+0x22d/0xd01
[  372.678710]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.683805]  ? __lock_acquire+0x62f/0x4c20
[  372.688048]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.693164]  ? __lock_acquire+0x62f/0x4c20
[  372.697391]  ? should_fail+0x22d/0xd01
[  372.701274]  ? find_held_lock+0x36/0x1c0
[  372.705366]  ? mark_held_locks+0x130/0x130
[  372.709600]  ? mark_held_locks+0x130/0x130
[  372.713827]  ? zap_class+0x640/0x640
[  372.717543]  ? zap_class+0x640/0x640
[  372.721252]  ? print_usage_bug+0xc0/0xc0
[  372.725325]  ? do_raw_spin_unlock+0xa7/0x330
[  372.729732]  ? zap_class+0x640/0x640
[  372.733452]  ? print_usage_bug+0xc0/0xc0
[  372.737511]  ? wq_watchdog_touch+0x9c/0xfe
[  372.741744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.747378]  ? check_preemption_disabled+0x48/0x280
[  372.752514]  ? __lock_is_held+0xb5/0x140
[  372.756577]  __alloc_pages_nodemask+0xa80/0xde0
[  372.761240]  ? zap_class+0x640/0x640
[  372.764952]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  372.769973]  ? find_held_lock+0x36/0x1c0
[  372.774035]  ? ____cache_alloc_node+0x1c7/0x1e0
[  372.778700]  ? lock_downgrade+0x900/0x900
[  372.782848]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.788385]  cache_grow_begin+0xa5/0x8c0
[  372.792440]  ? do_raw_spin_unlock+0xa7/0x330
[  372.796936]  fallback_alloc+0x204/0x2e0
[  372.800916]  ____cache_alloc_node+0x1c7/0x1e0
[  372.805411]  kmem_cache_alloc_node+0xe3/0x730
[  372.809906]  ? ipv6_get_ifaddr+0x42e/0x620
[  372.814232]  __alloc_skb+0x119/0x770
[  372.817942]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.823221]  ? netdev_alloc_frag+0x1f0/0x1f0
[  372.827628]  ? lock_downgrade+0x900/0x900
[  372.831776]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.837309]  ? refcount_sub_and_test_checked+0x203/0x310
[  372.842784]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  372.848234]  ? addrconf_rs_timer+0x690/0x690
[  372.852651]  ndisc_alloc_skb+0x144/0x340
[  372.856709]  ndisc_send_rs+0x331/0x6e0
[  372.860593]  addrconf_rs_timer+0x314/0x690
[  372.864825]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.869065]  call_timer_fn+0x272/0x920
[  372.872946]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.877293]  ? process_timeout+0x40/0x40
[  372.881365]  ? mark_held_locks+0xc7/0x130
[  372.885512]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.889999]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.894491]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.899206]  ? lockdep_hardirqs_on+0x296/0x5b0
[  372.903787]  ? trace_hardirqs_on+0xbd/0x310
[  372.908107]  ? kasan_check_read+0x11/0x20
[  372.912282]  ? __run_timers+0x7da/0xc70
[  372.916256]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.921365]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.925602]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.929829]  __run_timers+0x7e5/0xc70
[  372.933677]  ? timer_fixup_init+0x70/0x70
[  372.937836]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  372.942851]  ? zap_class+0x640/0x640
[  372.946567]  ? print_usage_bug+0xc0/0xc0
[  372.950625]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  372.955816]  ? find_held_lock+0x36/0x1c0
[  372.959874]  ? zap_class+0x640/0x640
[  372.963589]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.969119]  ? check_preemption_disabled+0x48/0x280
[  372.974140]  ? __lock_is_held+0xb5/0x140
[  372.978194]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.983746]  ? check_preemption_disabled+0x48/0x280
[  372.988760]  run_timer_softirq+0x52/0xb0
[  372.992814]  ? rcu_read_lock_sched_held+0x14f/0x180
[  372.997911]  __do_softirq+0x308/0xb7e
[  373.001712]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  373.006201]  ? lock_downgrade+0x900/0x900
[  373.010353]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  373.015541]  ? pvclock_read_flags+0x160/0x160
[  373.020033]  ? lapic_next_event+0x5a/0x90
[  373.024177]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.029719]  ? kvm_clock_read+0x18/0x30
[  373.033704]  ? kvm_sched_clock_read+0x9/0x20
[  373.038111]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.043643]  ? check_preemption_disabled+0x48/0x280
[  373.048661]  irq_exit+0x17f/0x1c0
[  373.052109]  smp_apic_timer_interrupt+0x1cb/0x760
[  373.056964]  ? smp_call_function_single_interrupt+0x650/0x650
[  373.063038]  ? interrupt_entry+0xb5/0xc0
[  373.067106]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.072116]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.077128]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.081966]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.086976]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.091985]  ? task_prio+0x50/0x50
[  373.095527]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.101059]  ? check_preemption_disabled+0x48/0x280
[  373.106071]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.110916]  apic_timer_interrupt+0xf/0x20
[  373.115139]  </IRQ>
[  373.117377] RIP: 0010:dump_stack+0x358/0x39d
[  373.121784] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  373.140688] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  373.148390] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  373.155654] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  373.162916] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  373.170276] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  373.177547] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  373.184826]  ? dump_stack+0x34f/0x39d
[  373.188632]  ? dump_stack_print_info.cold.1+0x20/0x20
[  373.193823]  ? mark_held_locks+0x130/0x130
[  373.198054]  ? mark_held_locks+0x130/0x130
[  373.202398]  dump_header+0x27b/0xf72
[  373.206116]  ? pagefault_out_of_memory+0x197/0x197
[  373.211152]  ? __lock_acquire+0x62f/0x4c20
[  373.215383]  ? percpu_ref_get_many+0x240/0x240
[  373.219974]  ? print_usage_bug+0xc0/0xc0
[  373.224035]  ? zap_class+0x640/0x640
[  373.227847]  ? print_usage_bug+0xc0/0xc0
[  373.231910]  ? print_usage_bug+0xc0/0xc0
[  373.235970]  ? zap_class+0x640/0x640
[  373.239686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.245238]  ? find_held_lock+0x36/0x1c0
[  373.249317]  ? mark_held_locks+0xc7/0x130
[  373.253466]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  373.258562]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  373.263665]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  373.268254]  ? trace_hardirqs_on+0xbd/0x310
[  373.272574]  ? kasan_check_read+0x11/0x20
[  373.276725]  ? ___ratelimit+0x3b4/0x672
[  373.280700]  ? trace_hardirqs_off_caller+0x310/0x310
[  373.285797]  ? trace_hardirqs_on+0x310/0x310
[  373.290199]  ? lock_downgrade+0x900/0x900
[  373.294348]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  373.299447]  ? ___ratelimit+0x3b9/0x672
[  373.303419]  ? idr_get_free+0xf70/0xf70
[  373.307389]  ? find_held_lock+0x36/0x1c0
[  373.311452]  oom_kill_process.cold.27+0x10/0x903
[  373.316202]  ? zap_class+0x640/0x640
[  373.319912]  ? check_preemption_disabled+0x48/0x280
[  373.324929]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.329854]  ? kasan_check_read+0x11/0x20
[  373.334001]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.339276]  ? oom_evaluate_task+0x540/0x540
[  373.343774]  ? find_held_lock+0x36/0x1c0
[  373.347957]  ? out_of_memory+0x974/0x1430
[  373.352101]  ? lock_downgrade+0x900/0x900
[  373.356269]  ? check_preemption_disabled+0x48/0x280
[  373.361298]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.366231]  ? kasan_check_read+0x11/0x20
[  373.370381]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.375655]  ? rcu_softirq_qs+0x20/0x20
[  373.379624]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.385153]  ? oom_evaluate_task+0x302/0x540
[  373.389563]  out_of_memory+0xa84/0x1430
[  373.393541]  ? oom_killer_disable+0x3a0/0x3a0
[  373.398033]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  373.402963]  ? __ww_mutex_check_waiters+0x160/0x160
[  373.407983]  __alloc_pages_slowpath+0x2354/0x2e10
[  373.412849]  ? warn_alloc+0x120/0x120
[  373.416643]  ? mark_held_locks+0x130/0x130
[  373.420886]  ? find_get_entry+0xaae/0x1120
[  373.425142]  ? filemap_map_pages+0x1a20/0x1a20
[  373.429727]  ? zap_class+0x640/0x640
[  373.433449]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.438984]  ? check_preemption_disabled+0x48/0x280
[  373.443993]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.449529]  ? should_fail+0x22d/0xd01
[  373.453419]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.458521]  ? zap_class+0x640/0x640
[  373.462262]  ? __lock_is_held+0xb5/0x140
[  373.466330]  ? mark_held_locks+0x130/0x130
[  373.470564]  ? lock_release+0xa00/0xa00
[  373.474533]  ? perf_trace_sched_process_exec+0x860/0x860
[  373.479978]  ? xa_load+0x2ba/0x460
[  373.483531]  ? lock_downgrade+0x900/0x900
[  373.487676]  ? __might_sleep+0x95/0x190
[  373.491649]  __alloc_pages_nodemask+0xa80/0xde0
[  373.496319]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  373.501348]  ? __page_cache_alloc+0x191/0x5c0
[  373.505832]  ? xa_load+0x2e1/0x460
[  373.509367]  ? xa_clear_mark+0x40/0x40
[  373.513256]  ? zap_class+0x640/0x640
[  373.516977]  ? zap_class+0x640/0x640
[  373.520688]  ? zap_class+0x640/0x640
[  373.524400]  ? __do_page_cache_readahead+0x663/0x810
[  373.529501]  ? find_held_lock+0x36/0x1c0
[  373.533565]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  373.539107]  alloc_pages_current+0x173/0x350
[  373.543517]  __page_cache_alloc+0x38c/0x5c0
[  373.547834]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.552757]  ? kasan_check_read+0x11/0x20
[  373.556912]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.562189]  ? generic_perform_write+0x6a0/0x6a0
[  373.566952]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.572486]  ? check_preemption_disabled+0x48/0x280
[  373.577507]  filemap_fault+0x1595/0x25f0
[  373.581575]  ? __lock_page_or_retry+0xa00/0xa00
[  373.586248]  ? mark_held_locks+0x130/0x130
[  373.590494]  ? filemap_map_pages+0xd6b/0x1a20
[  373.594987]  ? lock_downgrade+0x900/0x900
[  373.599129]  ? check_preemption_disabled+0x48/0x280
[  373.604140]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.609066]  ? kasan_check_read+0x11/0x20
[  373.613209]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.618487]  ? rcu_softirq_qs+0x20/0x20
[  373.622466]  ? filemap_map_pages+0xd92/0x1a20
[  373.626985]  ? find_get_entries_tag+0x1400/0x1400
[  373.631820]  ? find_held_lock+0x36/0x1c0
[  373.635895]  ? lock_acquire+0x1ed/0x520
[  373.639863]  ? ext4_filemap_fault+0x7a/0xad
[  373.644184]  ? lock_release+0xa00/0xa00
[  373.648181]  ? perf_trace_sched_process_exec+0x860/0x860
[  373.653627]  ? print_usage_bug+0xc0/0xc0
[  373.657698]  ? down_read+0x8d/0x120
[  373.661316]  ? ext4_filemap_fault+0x7a/0xad
[  373.665633]  ? __down_interruptible+0x700/0x700
[  373.670298]  ? find_held_lock+0x36/0x1c0
[  373.674357]  ext4_filemap_fault+0x82/0xad
[  373.678499]  __do_fault+0x100/0x6b0
[  373.682122]  ? lock_downgrade+0x900/0x900
[  373.686282]  ? pmd_devmap_trans_unstable+0x220/0x220
[  373.691384]  ? kasan_check_read+0x11/0x20
[  373.695529]  ? do_raw_spin_unlock+0xa7/0x330
[  373.699942]  ? do_raw_spin_trylock+0x270/0x270
[  373.704544]  __handle_mm_fault+0x3ea0/0x5be0
[  373.708946]  ? perf_trace_lock+0x7a0/0x7a0
[  373.713196]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  373.718063]  ? __switch_to_asm+0x34/0x70
[  373.722123]  ? __switch_to_asm+0x34/0x70
[  373.726191]  ? zap_class+0x640/0x640
[  373.729991]  ? zap_class+0x640/0x640
[  373.733785]  ? __x64_sys_futex+0x53e/0x6a0
[  373.738031]  ? find_held_lock+0x36/0x1c0
[  373.742092]  ? handle_mm_fault+0x42a/0xc70
[  373.746328]  ? lock_downgrade+0x900/0x900
[  373.750471]  ? check_preemption_disabled+0x48/0x280
[  373.755484]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  373.760409]  ? kasan_check_read+0x11/0x20
[  373.764548]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.769831]  ? rcu_softirq_qs+0x20/0x20
[  373.773801]  ? trace_hardirqs_off_caller+0x310/0x310
[  373.778905]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.784437]  ? check_preemption_disabled+0x48/0x280
[  373.789456]  handle_mm_fault+0x54f/0xc70
[  373.793535]  ? __handle_mm_fault+0x5be0/0x5be0
[  373.798119]  ? find_vma+0x34/0x190
[  373.801679]  __do_page_fault+0x5e8/0xe60
[  373.805737]  ? trace_hardirqs_off+0xb8/0x310
[  373.810149]  do_page_fault+0xf2/0x7e0
[  373.813947]  ? vmalloc_sync_all+0x30/0x30
[  373.818090]  ? error_entry+0x70/0xd0
[  373.821886]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.826896]  ? trace_hardirqs_on_caller+0xc0/0x310
[  373.831821]  ? syscall_return_slowpath+0x5e0/0x5e0
[  373.836852]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.841692]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.846787]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  373.852332]  ? prepare_exit_to_usermode+0x291/0x3b0
[  373.857348]  ? page_fault+0x8/0x30
[  373.860887]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.865724]  ? page_fault+0x8/0x30
[  373.869267]  page_fault+0x1e/0x30
[  373.872710] RIP: 0033:0x404068
[  373.875909] Code: Bad RIP value.
[  373.879268] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  373.884802] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  373.892068] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  373.899336] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  373.906595] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  373.913859] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  373.921143] warn_alloc_show_mem: 1 callbacks suppressed
[  373.921153] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  373.921154] Mem-Info:
[  373.921205] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  373.921205]  active_file:13 inactive_file:13 isolated_file:0
[  373.921205]  unevictable:0 dirty:0 writeback:0 unstable:0
[  373.921205]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  373.921205]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  373.921205]  free:13747 free_pcp:348 free_cma:0
[  373.926535] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  373.933889] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  373.936277] Call Trace:
[  373.969304] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  373.978657]  <IRQ>
[  374.006488] lowmem_reserve[]: 0 2818 6321 6321
[  374.009062]  dump_stack+0x244/0x39d
[  374.035138] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  374.037285]  ? dump_stack_print_info.cold.1+0x20/0x20
[  374.041846] lowmem_reserve[]: 0 0 3503 3503
[  374.045477]  warn_alloc.cold.116+0xb7/0x1bd
[  374.073030] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  374.078219]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  374.082517] lowmem_reserve[]: 0 0 0 0
[  374.086844]  ? lock_downgrade+0x900/0x900
[  374.115959] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  374.120795]  ? trace_hardirqs_off+0xb8/0x310
[  374.124560] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  374.128701]  ? trace_hardirqs_off+0xb8/0x310
[  374.142195] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  374.146596]  __alloc_pages_slowpath+0x26e8/0x2e10
[  374.161479] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  374.165891]  ? warn_alloc+0x120/0x120
[  374.181017] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  374.185841]  ? print_usage_bug+0xc0/0xc0
[  374.194643] 4484 total pagecache pages
[  374.198426]  ? warn_alloc+0x120/0x120
[  374.206981] 0 pages in swap cache
[  374.211031]  ? warn_alloc+0x120/0x120
[  374.214888] Swap cache stats: add 0, delete 0, find 0/0
[  374.218671]  ? print_usage_bug+0xc0/0xc0
[  374.222091] Free swap  = 0kB
[  374.225878]  ? print_usage_bug+0xc0/0xc0
[  374.231209] Total swap = 0kB
[  374.235255]  ? __lock_acquire+0x62f/0x4c20
[  374.238241] 1965979 pages RAM
[  374.242315]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.245296] 0 pages HighMem/MovableOnly
[  374.245303] 342854 pages reserved
[  374.249521]  ? should_fail+0x22d/0xd01
[  374.252596] 0 pages cma reserved
[  374.258118]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  374.262116] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  374.265500]  ? __lock_acquire+0x62f/0x4c20
[  374.269454] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  374.272725]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  374.277792] syz-fuzzer cpuset=/ mems_allowed=0
[  374.284270]  ? __lock_acquire+0x62f/0x4c20
[  374.312562]  ? should_fail+0x22d/0xd01
[  374.316454]  ? find_held_lock+0x36/0x1c0
[  374.320516]  ? mark_held_locks+0x130/0x130
[  374.324749]  ? mark_held_locks+0x130/0x130
[  374.328973]  ? zap_class+0x640/0x640
[  374.332698]  ? zap_class+0x640/0x640
[  374.336419]  ? print_usage_bug+0xc0/0xc0
[  374.340478]  ? do_raw_spin_unlock+0xa7/0x330
[  374.344894]  ? zap_class+0x640/0x640
[  374.348604]  ? print_usage_bug+0xc0/0xc0
[  374.352658]  ? wq_watchdog_touch+0x9c/0xfe
[  374.356891]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.362423]  ? check_preemption_disabled+0x48/0x280
[  374.367447]  ? __lock_is_held+0xb5/0x140
[  374.371514]  __alloc_pages_nodemask+0xa80/0xde0
[  374.376188]  ? zap_class+0x640/0x640
[  374.379905]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  374.384928]  ? find_held_lock+0x36/0x1c0
[  374.388993]  ? ____cache_alloc_node+0x1c7/0x1e0
[  374.393757]  ? lock_downgrade+0x900/0x900
[  374.397908]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.403445]  cache_grow_begin+0xa5/0x8c0
[  374.407516]  ? do_raw_spin_unlock+0xa7/0x330
[  374.411925]  fallback_alloc+0x204/0x2e0
[  374.415900]  ____cache_alloc_node+0x1c7/0x1e0
[  374.420397]  kmem_cache_alloc_node+0xe3/0x730
[  374.424974]  ? ipv6_get_ifaddr+0x42e/0x620
[  374.429317]  __alloc_skb+0x119/0x770
[  374.433025]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.438329]  ? netdev_alloc_frag+0x1f0/0x1f0
[  374.442735]  ? lock_downgrade+0x900/0x900
[  374.446883]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.452419]  ? refcount_sub_and_test_checked+0x203/0x310
[  374.457866]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  374.463311]  ? addrconf_rs_timer+0x690/0x690
[  374.467729]  ndisc_alloc_skb+0x144/0x340
[  374.471790]  ndisc_send_rs+0x331/0x6e0
[  374.475676]  addrconf_rs_timer+0x314/0x690
[  374.480349]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.484594]  call_timer_fn+0x272/0x920
[  374.488475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.492711]  ? process_timeout+0x40/0x40
[  374.496772]  ? __run_timers+0x7da/0xc70
[  374.500747]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.505240]  ? _raw_spin_unlock_irq+0x27/0x80
[  374.509731]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.513958]  ? lockdep_hardirqs_on+0x296/0x5b0
[  374.518536]  ? trace_hardirqs_on+0xbd/0x310
[  374.522855]  ? kasan_check_read+0x11/0x20
[  374.526999]  ? __run_timers+0x7da/0xc70
[  374.530972]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.536074]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.540308]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  374.544540]  __run_timers+0x7e5/0xc70
[  374.548348]  ? timer_fixup_init+0x70/0x70
[  374.552491]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  374.557505]  ? zap_class+0x640/0x640
[  374.561228]  ? enqueue_hrtimer+0x1a5/0x560
[  374.565459]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  374.570648]  ? find_held_lock+0x36/0x1c0
[  374.574714]  ? zap_class+0x640/0x640
[  374.578511]  ? pvclock_read_flags+0x160/0x160
[  374.582999]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.588529]  ? check_preemption_disabled+0x48/0x280
[  374.593546]  ? __lock_is_held+0xb5/0x140
[  374.597597]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.603125]  ? check_preemption_disabled+0x48/0x280
[  374.608157]  run_timer_softirq+0x52/0xb0
[  374.612212]  ? rcu_read_lock_sched_held+0x14f/0x180
[  374.617243]  __do_softirq+0x308/0xb7e
[  374.621041]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  374.625529]  ? lock_downgrade+0x900/0x900
[  374.629670]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  374.634778]  ? pvclock_read_flags+0x160/0x160
[  374.639270]  ? lapic_next_event+0x5a/0x90
[  374.643414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.648968]  ? kvm_clock_read+0x18/0x30
[  374.652934]  ? kvm_sched_clock_read+0x9/0x20
[  374.657341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.662966]  ? check_preemption_disabled+0x48/0x280
[  374.667985]  irq_exit+0x17f/0x1c0
[  374.671439]  smp_apic_timer_interrupt+0x1cb/0x760
[  374.676272]  ? smp_reschedule_interrupt+0x109/0x650
[  374.681287]  ? smp_call_function_single_interrupt+0x650/0x650
[  374.687164]  ? interrupt_entry+0xb5/0xc0
[  374.691227]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.696233]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.701251]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.706090]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.711184]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.716214]  ? task_prio+0x50/0x50
[  374.719749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.725278]  ? check_preemption_disabled+0x48/0x280
[  374.730310]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.735159]  apic_timer_interrupt+0xf/0x20
[  374.739386]  </IRQ>
[  374.741619] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  374.746548] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  374.765443] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  374.773147] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  374.780422] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  374.787687] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  374.794950] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  374.802214] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  374.809511]  skb_clone+0x1bb/0x500
[  374.813049]  ? finish_task_switch+0x2f4/0x910
[  374.817541]  ? skb_split+0x11e0/0x11e0
[  374.821426]  ? preempt_notifier_register+0x200/0x200
[  374.826522]  ? __switch_to_asm+0x34/0x70
[  374.830576]  ? __switch_to_asm+0x34/0x70
[  374.834630]  ? __switch_to_asm+0x40/0x70
[  374.838698]  ? __switch_to_asm+0x34/0x70
[  374.842757]  ? __switch_to_asm+0x40/0x70
[  374.846812]  ? __switch_to_asm+0x34/0x70
[  374.850865]  ? __switch_to_asm+0x40/0x70
[  374.854920]  ? __switch_to_asm+0x34/0x70
[  374.858978]  ? __switch_to_asm+0x34/0x70
[  374.863034]  ? __switch_to_asm+0x40/0x70
[  374.867086]  ? __switch_to_asm+0x34/0x70
[  374.871157]  bpf_clone_redirect+0xb9/0x490
[  374.875389]  ? __schedule+0x8d7/0x21d0
[  374.879281]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  374.884297]  ? __sched_text_start+0x8/0x8
[  374.888443]  ? retint_kernel+0x2d/0x2d
[  374.892332]  ? find_held_lock+0x36/0x1c0
[  374.896744]  ? lock_acquire+0x1ed/0x520
[  374.900716]  ? bpf_test_run+0x3cb/0x780
[  374.904689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.910221]  ? check_preemption_disabled+0x48/0x280
[  374.915235]  ? kasan_check_read+0x11/0x20
[  374.919381]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.924654]  ? rcu_softirq_qs+0x20/0x20
[  374.928633]  ? preempt_schedule+0x4d/0x60
[  374.932816]  ? ___preempt_schedule+0x16/0x18
[  374.937250]  ? bpf_test_run+0x25d/0x780
[  374.941233]  ? netlink_diag_dump+0x2a0/0x2a0
[  374.945636]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.951169]  ? bpf_test_init.isra.10+0x70/0x100
[  374.955837]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  374.960599]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  374.965434]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  374.970963]  ? fput+0x130/0x1a0
[  374.974253]  ? __bpf_prog_get+0x9b/0x290
[  374.978330]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  374.983179]  ? bpf_prog_test_run+0x130/0x1a0
[  374.987586]  ? __x64_sys_bpf+0x3d8/0x520
[  374.991655]  ? bpf_prog_get+0x20/0x20
[  374.995476]  ? do_syscall_64+0x1b9/0x820
[  374.999530]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  375.004889]  ? syscall_return_slowpath+0x5e0/0x5e0
[  375.009813]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.014659]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.019676]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  375.024689]  ? prepare_exit_to_usermode+0x291/0x3b0
[  375.029706]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.034554]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  375.039948] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  375.040014] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  375.046956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  375.046963] Call Trace:
[  375.053514] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  375.063076]  <IRQ>
[  375.065656] syz-executor2 cpuset=syz2 mems_allowed=0
[  375.076138]  dump_stack+0x244/0x39d
[  375.086965]  ? dump_stack_print_info.cold.1+0x20/0x20
[  375.092164]  warn_alloc.cold.116+0xb7/0x1bd
[  375.096485]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  375.101372]  ? lock_downgrade+0x900/0x900
[  375.105544]  ? trace_hardirqs_off+0xb8/0x310
[  375.109957]  ? trace_hardirqs_off+0xb8/0x310
[  375.114370]  __alloc_pages_slowpath+0x26e8/0x2e10
[  375.119237]  ? warn_alloc+0x120/0x120
[  375.123034]  ? print_usage_bug+0xc0/0xc0
[  375.127089]  ? warn_alloc+0x120/0x120
[  375.130900]  ? warn_alloc+0x120/0x120
[  375.134700]  ? print_usage_bug+0xc0/0xc0
[  375.138762]  ? kvm_clock_read+0x18/0x30
[  375.142736]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  375.147747]  ? print_usage_bug+0xc0/0xc0
[  375.151801]  ? __lock_acquire+0x62f/0x4c20
[  375.156032]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.161577]  ? should_fail+0x22d/0xd01
[  375.165465]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.170566]  ? __lock_acquire+0x62f/0x4c20
[  375.174799]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.179893]  ? __lock_acquire+0x62f/0x4c20
[  375.184124]  ? should_fail+0x22d/0xd01
[  375.188019]  ? mark_held_locks+0x130/0x130
[  375.192269]  ? mark_held_locks+0x130/0x130
[  375.196507]  ? zap_class+0x640/0x640
[  375.200216]  ? print_usage_bug+0xc0/0xc0
[  375.204281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.209814]  ? check_preemption_disabled+0x48/0x280
[  375.214834]  ? __lock_is_held+0xb5/0x140
[  375.218902]  __alloc_pages_nodemask+0xa80/0xde0
[  375.223564]  ? zap_class+0x640/0x640
[  375.227276]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  375.232299]  ? find_held_lock+0x36/0x1c0
[  375.236367]  ? ____cache_alloc_node+0x1c7/0x1e0
[  375.241044]  ? lock_downgrade+0x900/0x900
[  375.245192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.250732]  cache_grow_begin+0xa5/0x8c0
[  375.254790]  ? do_raw_spin_unlock+0xa7/0x330
[  375.259199]  fallback_alloc+0x204/0x2e0
[  375.263179]  ____cache_alloc_node+0x1c7/0x1e0
[  375.267677]  kmem_cache_alloc_node+0xe3/0x730
[  375.272182]  ? ipv6_get_ifaddr+0x42e/0x620
[  375.276513]  __alloc_skb+0x119/0x770
[  375.280221]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.285499]  ? netdev_alloc_frag+0x1f0/0x1f0
[  375.289913]  ? lock_downgrade+0x900/0x900
[  375.294074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.299613]  ? refcount_sub_and_test_checked+0x203/0x310
[  375.305066]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  375.310518]  ? addrconf_rs_timer+0x690/0x690
[  375.314935]  ndisc_alloc_skb+0x144/0x340
[  375.318996]  ndisc_send_rs+0x331/0x6e0
[  375.322886]  addrconf_rs_timer+0x314/0x690
[  375.327122]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.331365]  call_timer_fn+0x272/0x920
[  375.335249]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.339479]  ? process_timeout+0x40/0x40
[  375.343542]  ? mark_held_locks+0xc7/0x130
[  375.347687]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.352175]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.356663]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.360891]  ? lockdep_hardirqs_on+0x296/0x5b0
[  375.365469]  ? trace_hardirqs_on+0xbd/0x310
[  375.369783]  ? kasan_check_read+0x11/0x20
[  375.373929]  ? __run_timers+0x7da/0xc70
[  375.377896]  ? trace_hardirqs_off_caller+0x310/0x310
[  375.383007]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.387233]  __run_timers+0x7e5/0xc70
[  375.391036]  ? timer_fixup_init+0x70/0x70
[  375.395178]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  375.400192]  ? zap_class+0x640/0x640
[  375.403904]  ? print_usage_bug+0xc0/0xc0
[  375.407960]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  375.413156]  ? find_held_lock+0x36/0x1c0
[  375.417218]  ? zap_class+0x640/0x640
[  375.420935]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.426466]  ? check_preemption_disabled+0x48/0x280
[  375.431486]  ? __lock_is_held+0xb5/0x140
[  375.435613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.441151]  ? check_preemption_disabled+0x48/0x280
[  375.446169]  run_timer_softirq+0x52/0xb0
[  375.450224]  ? rcu_read_lock_sched_held+0x14f/0x180
[  375.455241]  __do_softirq+0x308/0xb7e
[  375.459040]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  375.463551]  ? lock_downgrade+0x900/0x900
[  375.467699]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  375.472802]  ? pvclock_read_flags+0x160/0x160
[  375.477291]  ? lapic_next_event+0x5a/0x90
[  375.481439]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.486973]  ? kvm_clock_read+0x18/0x30
[  375.490942]  ? kvm_sched_clock_read+0x9/0x20
[  375.495346]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.500878]  ? check_preemption_disabled+0x48/0x280
[  375.505896]  irq_exit+0x17f/0x1c0
[  375.509345]  smp_apic_timer_interrupt+0x1cb/0x760
[  375.514198]  ? smp_call_function_single_interrupt+0x650/0x650
[  375.520166]  ? interrupt_entry+0xb5/0xc0
[  375.524225]  ? trace_hardirqs_off_caller+0xbb/0x310
[  375.529236]  ? trace_hardirqs_off_caller+0xbb/0x310
[  375.534254]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.539119]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.544132]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.549149]  ? task_prio+0x50/0x50
[  375.552685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.558222]  ? check_preemption_disabled+0x48/0x280
[  375.563239]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.568093]  apic_timer_interrupt+0xf/0x20
[  375.572324]  </IRQ>
[  375.574556] RIP: 0010:dump_stack+0x358/0x39d
[  375.578962] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  375.597882] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  375.605583] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  375.612851] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  375.620118] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  375.627383] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  375.634732] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  375.642011]  ? dump_stack+0x34f/0x39d
[  375.645852]  ? dump_stack_print_info.cold.1+0x20/0x20
[  375.651040]  ? mark_held_locks+0x130/0x130
[  375.655328]  ? mark_held_locks+0x130/0x130
[  375.659575]  dump_header+0x27b/0xf72
[  375.663294]  ? pagefault_out_of_memory+0x197/0x197
[  375.668224]  ? __lock_acquire+0x62f/0x4c20
[  375.672456]  ? percpu_ref_get_many+0x240/0x240
[  375.677037]  ? print_usage_bug+0xc0/0xc0
[  375.681108]  ? zap_class+0x640/0x640
[  375.684820]  ? print_usage_bug+0xc0/0xc0
[  375.688879]  ? print_usage_bug+0xc0/0xc0
[  375.692951]  ? zap_class+0x640/0x640
[  375.696666]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.702208]  ? find_held_lock+0x36/0x1c0
[  375.706291]  ? mark_held_locks+0xc7/0x130
[  375.710468]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  375.715565]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  375.720671]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  375.725256]  ? trace_hardirqs_on+0xbd/0x310
[  375.729663]  ? kasan_check_read+0x11/0x20
[  375.733809]  ? ___ratelimit+0x3b4/0x672
[  375.737783]  ? trace_hardirqs_off_caller+0x310/0x310
[  375.742891]  ? trace_hardirqs_on+0x310/0x310
[  375.747328]  ? lock_downgrade+0x900/0x900
[  375.751477]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  375.756579]  ? ___ratelimit+0x3b9/0x672
[  375.760554]  ? idr_get_free+0xf70/0xf70
[  375.764523]  ? find_held_lock+0x36/0x1c0
[  375.768589]  oom_kill_process.cold.27+0x10/0x903
[  375.773342]  ? zap_class+0x640/0x640
[  375.777059]  ? check_preemption_disabled+0x48/0x280
[  375.782082]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.787008]  ? kasan_check_read+0x11/0x20
[  375.791153]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.796431]  ? oom_evaluate_task+0x540/0x540
[  375.800850]  ? find_held_lock+0x36/0x1c0
[  375.804914]  ? out_of_memory+0x974/0x1430
[  375.809064]  ? lock_downgrade+0x900/0x900
[  375.813215]  ? check_preemption_disabled+0x48/0x280
[  375.818248]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  375.823177]  ? kasan_check_read+0x11/0x20
[  375.827322]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.832595]  ? rcu_softirq_qs+0x20/0x20
[  375.836574]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.842110]  ? oom_evaluate_task+0x302/0x540
[  375.846528]  out_of_memory+0xa84/0x1430
[  375.850592]  ? oom_killer_disable+0x3a0/0x3a0
[  375.855105]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  375.860039]  ? __ww_mutex_check_waiters+0x160/0x160
[  375.865068]  __alloc_pages_slowpath+0x2354/0x2e10
[  375.869935]  ? warn_alloc+0x120/0x120
[  375.873728]  ? mark_held_locks+0x130/0x130
[  375.877963]  ? find_get_entry+0xaae/0x1120
[  375.882201]  ? filemap_map_pages+0x1a20/0x1a20
[  375.886790]  ? zap_class+0x640/0x640
[  375.890508]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.896046]  ? check_preemption_disabled+0x48/0x280
[  375.901063]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.906596]  ? should_fail+0x22d/0xd01
[  375.910485]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.915583]  ? zap_class+0x640/0x640
[  375.919328]  ? __lock_is_held+0xb5/0x140
[  375.923393]  ? mark_held_locks+0x130/0x130
[  375.927655]  ? lock_release+0xa00/0xa00
[  375.931625]  ? perf_trace_sched_process_exec+0x860/0x860
[  375.937102]  ? xa_load+0x2ba/0x460
[  375.940635]  ? lock_downgrade+0x900/0x900
[  375.944781]  ? __might_sleep+0x95/0x190
[  375.948786]  __alloc_pages_nodemask+0xa80/0xde0
[  375.953468]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  375.958475]  ? __page_cache_alloc+0x191/0x5c0
[  375.963055]  ? xa_load+0x2e1/0x460
[  375.966595]  ? xa_clear_mark+0x40/0x40
[  375.970480]  ? zap_class+0x640/0x640
[  375.974198]  ? zap_class+0x640/0x640
[  375.977918]  ? zap_class+0x640/0x640
[  375.981626]  ? __do_page_cache_readahead+0x663/0x810
[  375.986729]  ? find_held_lock+0x36/0x1c0
[  375.990793]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  375.996332]  alloc_pages_current+0x173/0x350
[  376.000739]  __page_cache_alloc+0x38c/0x5c0
[  376.005053]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.009976]  ? kasan_check_read+0x11/0x20
[  376.014114]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.019391]  ? generic_perform_write+0x6a0/0x6a0
[  376.024142]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.029674]  ? check_preemption_disabled+0x48/0x280
[  376.034692]  filemap_fault+0x1595/0x25f0
[  376.038760]  ? __lock_page_or_retry+0xa00/0xa00
[  376.043442]  ? mark_held_locks+0x130/0x130
[  376.047694]  ? filemap_map_pages+0xd6b/0x1a20
[  376.052184]  ? lock_downgrade+0x900/0x900
[  376.056332]  ? check_preemption_disabled+0x48/0x280
[  376.061345]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.066269]  ? kasan_check_read+0x11/0x20
[  376.070514]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.075823]  ? rcu_softirq_qs+0x20/0x20
[  376.079805]  ? filemap_map_pages+0xd92/0x1a20
[  376.084304]  ? find_get_entries_tag+0x1400/0x1400
[  376.089138]  ? find_held_lock+0x36/0x1c0
[  376.093212]  ? lock_acquire+0x1ed/0x520
[  376.097294]  ? ext4_filemap_fault+0x7a/0xad
[  376.101616]  ? lock_release+0xa00/0xa00
[  376.105585]  ? perf_trace_sched_process_exec+0x860/0x860
[  376.111119]  ? print_usage_bug+0xc0/0xc0
[  376.115207]  ? down_read+0x8d/0x120
[  376.118824]  ? ext4_filemap_fault+0x7a/0xad
[  376.123144]  ? __down_interruptible+0x700/0x700
[  376.127814]  ? find_held_lock+0x36/0x1c0
[  376.131876]  ext4_filemap_fault+0x82/0xad
[  376.136038]  __do_fault+0x100/0x6b0
[  376.139668]  ? lock_downgrade+0x900/0x900
[  376.143816]  ? pmd_devmap_trans_unstable+0x220/0x220
[  376.148916]  ? kasan_check_read+0x11/0x20
[  376.153055]  ? do_raw_spin_unlock+0xa7/0x330
[  376.157491]  ? do_raw_spin_trylock+0x270/0x270
[  376.162103]  __handle_mm_fault+0x3ea0/0x5be0
[  376.166505]  ? perf_trace_lock+0x7a0/0x7a0
[  376.170740]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  376.175585]  ? __switch_to_asm+0x34/0x70
[  376.179658]  ? __switch_to_asm+0x34/0x70
[  376.183728]  ? zap_class+0x640/0x640
[  376.187435]  ? zap_class+0x640/0x640
[  376.191141]  ? __x64_sys_futex+0x53e/0x6a0
[  376.195374]  ? find_held_lock+0x36/0x1c0
[  376.199433]  ? handle_mm_fault+0x42a/0xc70
[  376.203753]  ? lock_downgrade+0x900/0x900
[  376.207985]  ? check_preemption_disabled+0x48/0x280
[  376.213027]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.217970]  ? kasan_check_read+0x11/0x20
[  376.222129]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.227401]  ? rcu_softirq_qs+0x20/0x20
[  376.231372]  ? trace_hardirqs_off_caller+0x310/0x310
[  376.236484]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.242033]  ? check_preemption_disabled+0x48/0x280
[  376.247060]  handle_mm_fault+0x54f/0xc70
[  376.251123]  ? __handle_mm_fault+0x5be0/0x5be0
[  376.255709]  ? find_vma+0x34/0x190
[  376.259251]  __do_page_fault+0x5e8/0xe60
[  376.263323]  ? trace_hardirqs_off+0xb8/0x310
[  376.267752]  do_page_fault+0xf2/0x7e0
[  376.271571]  ? vmalloc_sync_all+0x30/0x30
[  376.275730]  ? error_entry+0x70/0xd0
[  376.279446]  ? trace_hardirqs_off_caller+0xbb/0x310
[  376.284454]  ? trace_hardirqs_on_caller+0xc0/0x310
[  376.289387]  ? syscall_return_slowpath+0x5e0/0x5e0
[  376.294336]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.299178]  ? trace_hardirqs_on_caller+0x310/0x310
[  376.304191]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  376.309656]  ? prepare_exit_to_usermode+0x291/0x3b0
[  376.314671]  ? page_fault+0x8/0x30
[  376.318383]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.323221]  ? page_fault+0x8/0x30
[  376.326761]  page_fault+0x1e/0x30
[  376.330207] RIP: 0033:0x404068
[  376.333407] Code: Bad RIP value.
[  376.336762] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  376.342119] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  376.349388] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  376.356646] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  376.363924] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  376.371189] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  376.378587] warn_alloc_show_mem: 1 callbacks suppressed
[  376.378596] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  376.378598] Mem-Info:
[  376.378627] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  376.378627]  active_file:13 inactive_file:13 isolated_file:0
[  376.378627]  unevictable:0 dirty:0 writeback:0 unstable:0
[  376.378627]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  376.378627]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  376.378627]  free:13747 free_pcp:348 free_cma:0
[  376.383999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  376.391368] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  376.393759] Call Trace:
[  376.426914] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  376.436352]  <IRQ>
[  376.464166] lowmem_reserve[]: 0 2818 6321 6321
[  376.466775]  dump_stack+0x244/0x39d
[  376.492953] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  376.495126]  ? dump_stack_print_info.cold.1+0x20/0x20
[  376.499765] lowmem_reserve[]: 0 0 3503 3503
[  376.503389]  warn_alloc.cold.116+0xb7/0x1bd
[  376.530937] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  376.536118]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  376.540409] lowmem_reserve[]: 0 0 0 0
[  376.544724]  ? lock_downgrade+0x900/0x900
[  376.573839] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  376.578680]  ? trace_hardirqs_off+0xb8/0x310
[  376.582444] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  376.586591]  ? trace_hardirqs_off+0xb8/0x310
[  376.600168] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  376.604573]  __alloc_pages_slowpath+0x26e8/0x2e10
[  376.619460] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  376.623878]  ? warn_alloc+0x120/0x120
[  376.639005] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  376.643828]  ? print_usage_bug+0xc0/0xc0
[  376.652651] 4484 total pagecache pages
[  376.656439]  ? warn_alloc+0x120/0x120
[  376.665004] 0 pages in swap cache
[  376.669050]  ? warn_alloc+0x120/0x120
[  376.673001] Swap cache stats: add 0, delete 0, find 0/0
[  376.676958]  ? print_usage_bug+0xc0/0xc0
[  376.680391] Free swap  = 0kB
[  376.684186]  ? kvm_clock_read+0x18/0x30
[  376.689518] Total swap = 0kB
[  376.693588]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  376.696590] 1965979 pages RAM
[  376.700556]  ? print_usage_bug+0xc0/0xc0
[  376.703562] 0 pages HighMem/MovableOnly
[  376.708566]  ? __lock_acquire+0x62f/0x4c20
[  376.711645] 342854 pages reserved
[  376.715825]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.719769] 0 pages cma reserved
[  376.724003]  ? should_fail+0x22d/0xd01
[  376.727507] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  376.732947]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.732973]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.736470] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  376.740290]  ? __lock_acquire+0x62f/0x4c20
[  376.746754] syz-fuzzer cpuset=/ mems_allowed=0
[  376.752021]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.781430]  ? __lock_acquire+0x62f/0x4c20
[  376.785667]  ? should_fail+0x22d/0xd01
[  376.789551]  ? rcu_irq_exit+0x1a2/0x390
[  376.793539]  ? mark_held_locks+0x130/0x130
[  376.797772]  ? mark_held_locks+0x130/0x130
[  376.802094]  ? mark_held_locks+0xc7/0x130
[  376.806258]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  376.811274]  ? zap_class+0x640/0x640
[  376.814989]  ? print_usage_bug+0xc0/0xc0
[  376.819133]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.824665]  ? check_preemption_disabled+0x48/0x280
[  376.829682]  ? __lock_is_held+0xb5/0x140
[  376.833862]  __alloc_pages_nodemask+0xa80/0xde0
[  376.838536]  ? zap_class+0x640/0x640
[  376.842336]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  376.847357]  ? find_held_lock+0x36/0x1c0
[  376.851421]  ? ____cache_alloc_node+0x1c7/0x1e0
[  376.856090]  ? lock_downgrade+0x900/0x900
[  376.860245]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.865784]  cache_grow_begin+0xa5/0x8c0
[  376.869841]  ? do_raw_spin_unlock+0xa7/0x330
[  376.874256]  fallback_alloc+0x204/0x2e0
[  376.878235]  ____cache_alloc_node+0x1c7/0x1e0
[  376.882740]  kmem_cache_alloc_node+0xe3/0x730
[  376.887232]  ? ipv6_get_ifaddr+0x42e/0x620
[  376.891503]  __alloc_skb+0x119/0x770
[  376.895749]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.901141]  ? netdev_alloc_frag+0x1f0/0x1f0
[  376.905547]  ? lock_downgrade+0x900/0x900
[  376.909708]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.915243]  ? refcount_sub_and_test_checked+0x203/0x310
[  376.920692]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  376.926142]  ? addrconf_rs_timer+0x690/0x690
[  376.930559]  ndisc_alloc_skb+0x144/0x340
[  376.934624]  ndisc_send_rs+0x331/0x6e0
[  376.938519]  addrconf_rs_timer+0x314/0x690
[  376.942757]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.947016]  call_timer_fn+0x272/0x920
[  376.950900]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.955132]  ? process_timeout+0x40/0x40
[  376.959214]  ? __run_timers+0x7da/0xc70
[  376.963185]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.967780]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.972279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.976520]  ? lockdep_hardirqs_on+0x296/0x5b0
[  376.981099]  ? trace_hardirqs_on+0xbd/0x310
[  376.985434]  ? kasan_check_read+0x11/0x20
[  376.989580]  ? __run_timers+0x7da/0xc70
[  376.993552]  ? trace_hardirqs_off_caller+0x310/0x310
[  376.998654]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.002889]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.007119]  __run_timers+0x7e5/0xc70
[  377.010924]  ? timer_fixup_init+0x70/0x70
[  377.015088]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  377.020101]  ? zap_class+0x640/0x640
[  377.023818]  ? enqueue_hrtimer+0x1a5/0x560
[  377.028052]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  377.033247]  ? find_held_lock+0x36/0x1c0
[  377.037312]  ? zap_class+0x640/0x640
[  377.041032]  ? pvclock_read_flags+0x160/0x160
[  377.045526]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.051152]  ? check_preemption_disabled+0x48/0x280
[  377.056180]  ? __lock_is_held+0xb5/0x140
[  377.060238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.066316]  ? check_preemption_disabled+0x48/0x280
[  377.071424]  run_timer_softirq+0x52/0xb0
[  377.075486]  ? rcu_read_lock_sched_held+0x14f/0x180
[  377.080518]  __do_softirq+0x308/0xb7e
[  377.084318]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  377.088807]  ? lock_downgrade+0x900/0x900
[  377.092962]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  377.098066]  ? pvclock_read_flags+0x160/0x160
[  377.102557]  ? lapic_next_event+0x5a/0x90
[  377.106705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.112243]  ? kvm_clock_read+0x18/0x30
[  377.116215]  ? kvm_sched_clock_read+0x9/0x20
[  377.120640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.126178]  ? check_preemption_disabled+0x48/0x280
[  377.131198]  irq_exit+0x17f/0x1c0
[  377.134651]  smp_apic_timer_interrupt+0x1cb/0x760
[  377.139509]  ? smp_reschedule_interrupt+0x109/0x650
[  377.144523]  ? smp_call_function_single_interrupt+0x650/0x650
[  377.150408]  ? interrupt_entry+0xb5/0xc0
[  377.154465]  ? trace_hardirqs_off_caller+0xbb/0x310
[  377.159479]  ? trace_hardirqs_off_caller+0xbb/0x310
[  377.164513]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.169353]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.174393]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.179406]  ? task_prio+0x50/0x50
[  377.182964]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.188500]  ? check_preemption_disabled+0x48/0x280
[  377.193519]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.198372]  apic_timer_interrupt+0xf/0x20
[  377.202597]  </IRQ>
[  377.204833] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  377.209778] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  377.228673] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  377.236373] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  377.243636] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  377.250895] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  377.258185] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  377.265449] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  377.272752]  skb_clone+0x1bb/0x500
[  377.276304]  ? finish_task_switch+0x2f4/0x910
[  377.280793]  ? skb_split+0x11e0/0x11e0
[  377.284678]  ? preempt_notifier_register+0x200/0x200
[  377.289771]  ? __switch_to_asm+0x34/0x70
[  377.293823]  ? __switch_to_asm+0x34/0x70
[  377.297891]  ? __switch_to_asm+0x40/0x70
[  377.301951]  ? __switch_to_asm+0x34/0x70
[  377.306022]  ? __switch_to_asm+0x40/0x70
[  377.310077]  ? __switch_to_asm+0x34/0x70
[  377.314135]  ? __switch_to_asm+0x40/0x70
[  377.318215]  ? __switch_to_asm+0x34/0x70
[  377.322271]  ? __switch_to_asm+0x34/0x70
[  377.326328]  ? __switch_to_asm+0x40/0x70
[  377.330385]  ? __switch_to_asm+0x34/0x70
[  377.334443]  bpf_clone_redirect+0xb9/0x490
[  377.338692]  ? __schedule+0x8d7/0x21d0
[  377.342667]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  377.347770]  ? __sched_text_start+0x8/0x8
[  377.351935]  ? retint_kernel+0x2d/0x2d
[  377.355835]  ? find_held_lock+0x36/0x1c0
[  377.359903]  ? lock_acquire+0x1ed/0x520
[  377.363881]  ? bpf_test_run+0x3cb/0x780
[  377.367848]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.373395]  ? check_preemption_disabled+0x48/0x280
[  377.378499]  ? kasan_check_read+0x11/0x20
[  377.382653]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.387934]  ? rcu_softirq_qs+0x20/0x20
[  377.391904]  ? preempt_schedule+0x4d/0x60
[  377.396066]  ? ___preempt_schedule+0x16/0x18
[  377.400500]  ? bpf_test_run+0x25d/0x780
[  377.404497]  ? netlink_diag_dump+0x2a0/0x2a0
[  377.408917]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.414450]  ? bpf_test_init.isra.10+0x70/0x100
[  377.419124]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  377.423887]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  377.428730]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  377.434261]  ? fput+0x130/0x1a0
[  377.437539]  ? __bpf_prog_get+0x9b/0x290
[  377.441690]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  377.446529]  ? bpf_prog_test_run+0x130/0x1a0
[  377.450943]  ? __x64_sys_bpf+0x3d8/0x520
[  377.455017]  ? bpf_prog_get+0x20/0x20
[  377.458827]  ? do_syscall_64+0x1b9/0x820
[  377.462882]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  377.468251]  ? syscall_return_slowpath+0x5e0/0x5e0
[  377.473174]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.478018]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.483030]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  377.488045]  ? prepare_exit_to_usermode+0x291/0x3b0
[  377.493075]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.497924]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  377.503301] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  377.503371] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  377.510312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  377.510316] Call Trace:
[  377.510322]  <IRQ>
[  377.510339]  dump_stack+0x244/0x39d
[  377.510358]  ? dump_stack_print_info.cold.1+0x20/0x20
[  377.516910] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  377.526358]  warn_alloc.cold.116+0xb7/0x1bd
[  377.528919] syz-executor2 cpuset=syz2 mems_allowed=0
[  377.531056]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  377.564847]  ? lock_downgrade+0x900/0x900
[  377.569012]  ? trace_hardirqs_off+0xb8/0x310
[  377.573422]  ? trace_hardirqs_off+0xb8/0x310
[  377.577844]  __alloc_pages_slowpath+0x26e8/0x2e10
[  377.582718]  ? warn_alloc+0x120/0x120
[  377.586512]  ? print_usage_bug+0xc0/0xc0
[  377.590592]  ? warn_alloc+0x120/0x120
[  377.594477]  ? zap_class+0x640/0x640
[  377.598190]  ? warn_alloc+0x120/0x120
[  377.601989]  ? print_usage_bug+0xc0/0xc0
[  377.606047]  ? print_usage_bug+0xc0/0xc0
[  377.610104]  ? __lock_acquire+0x62f/0x4c20
[  377.614339]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.619868]  ? should_fail+0x22d/0xd01
[  377.623758]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  377.628976]  ? __lock_acquire+0x62f/0x4c20
[  377.633212]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  377.638308]  ? __lock_acquire+0x62f/0x4c20
[  377.642536]  ? should_fail+0x22d/0xd01
[  377.646415]  ? find_held_lock+0x36/0x1c0
[  377.650483]  ? mark_held_locks+0x130/0x130
[  377.654716]  ? mark_held_locks+0x130/0x130
[  377.658959]  ? zap_class+0x640/0x640
[  377.662755]  ? zap_class+0x640/0x640
[  377.666464]  ? print_usage_bug+0xc0/0xc0
[  377.670519]  ? do_raw_spin_unlock+0xa7/0x330
[  377.674928]  ? zap_class+0x640/0x640
[  377.678647]  ? print_usage_bug+0xc0/0xc0
[  377.682701]  ? wq_watchdog_touch+0x9c/0xfe
[  377.686936]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.692502]  ? check_preemption_disabled+0x48/0x280
[  377.697526]  ? __lock_is_held+0xb5/0x140
[  377.701588]  __alloc_pages_nodemask+0xa80/0xde0
[  377.706250]  ? zap_class+0x640/0x640
[  377.710073]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  377.715098]  ? find_held_lock+0x36/0x1c0
[  377.719163]  ? ____cache_alloc_node+0x1c7/0x1e0
[  377.723843]  ? lock_downgrade+0x900/0x900
[  377.728005]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.733544]  cache_grow_begin+0xa5/0x8c0
[  377.737597]  ? do_raw_spin_unlock+0xa7/0x330
[  377.742021]  fallback_alloc+0x204/0x2e0
[  377.745999]  ____cache_alloc_node+0x1c7/0x1e0
[  377.750506]  kmem_cache_alloc_node+0xe3/0x730
[  377.754997]  ? ipv6_get_ifaddr+0x42e/0x620
[  377.759237]  __alloc_skb+0x119/0x770
[  377.762952]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.768234]  ? netdev_alloc_frag+0x1f0/0x1f0
[  377.772637]  ? lock_downgrade+0x900/0x900
[  377.776791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.782328]  ? refcount_sub_and_test_checked+0x203/0x310
[  377.787796]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  377.793261]  ? addrconf_rs_timer+0x690/0x690
[  377.797687]  ndisc_alloc_skb+0x144/0x340
[  377.801747]  ndisc_send_rs+0x331/0x6e0
[  377.805637]  addrconf_rs_timer+0x314/0x690
[  377.809875]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.814140]  call_timer_fn+0x272/0x920
[  377.818057]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.822291]  ? process_timeout+0x40/0x40
[  377.826354]  ? mark_held_locks+0xc7/0x130
[  377.830500]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.834991]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.839483]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.843711]  ? lockdep_hardirqs_on+0x296/0x5b0
[  377.848306]  ? trace_hardirqs_on+0xbd/0x310
[  377.852621]  ? kasan_check_read+0x11/0x20
[  377.856762]  ? __run_timers+0x7da/0xc70
[  377.860731]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.865830]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.870067]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.874311]  __run_timers+0x7e5/0xc70
[  377.878118]  ? timer_fixup_init+0x70/0x70
[  377.882264]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  377.887383]  ? zap_class+0x640/0x640
[  377.891114]  ? print_usage_bug+0xc0/0xc0
[  377.895176]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  377.900367]  ? find_held_lock+0x36/0x1c0
[  377.904428]  ? zap_class+0x640/0x640
[  377.908147]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.913679]  ? check_preemption_disabled+0x48/0x280
[  377.918701]  ? __lock_is_held+0xb5/0x140
[  377.922759]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.928296]  ? check_preemption_disabled+0x48/0x280
[  377.933335]  run_timer_softirq+0x52/0xb0
[  377.937404]  ? rcu_read_lock_sched_held+0x14f/0x180
[  377.942443]  __do_softirq+0x308/0xb7e
[  377.946335]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  377.950824]  ? lock_downgrade+0x900/0x900
[  377.954973]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  377.960081]  ? pvclock_read_flags+0x160/0x160
[  377.964574]  ? lapic_next_event+0x5a/0x90
[  377.968718]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.974256]  ? kvm_clock_read+0x18/0x30
[  377.978230]  ? kvm_sched_clock_read+0x9/0x20
[  377.982652]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.988193]  ? check_preemption_disabled+0x48/0x280
[  377.993216]  irq_exit+0x17f/0x1c0
[  377.996669]  smp_apic_timer_interrupt+0x1cb/0x760
[  378.001531]  ? smp_call_function_single_interrupt+0x650/0x650
[  378.007411]  ? interrupt_entry+0xb5/0xc0
[  378.011469]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.016480]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.021494]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.026349]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.031375]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.036404]  ? task_prio+0x50/0x50
[  378.039947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.045499]  ? check_preemption_disabled+0x48/0x280
[  378.050517]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.055362]  apic_timer_interrupt+0xf/0x20
[  378.059592]  </IRQ>
[  378.061823] RIP: 0010:dump_stack+0x358/0x39d
[  378.066228] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  378.085124] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  378.092827] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  378.100100] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  378.107376] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  378.114639] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  378.121902] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  378.129189]  ? dump_stack+0x34f/0x39d
[  378.132995]  ? dump_stack_print_info.cold.1+0x20/0x20
[  378.138196]  ? mark_held_locks+0x130/0x130
[  378.142436]  ? mark_held_locks+0x130/0x130
[  378.146703]  dump_header+0x27b/0xf72
[  378.150424]  ? pagefault_out_of_memory+0x197/0x197
[  378.155356]  ? __lock_acquire+0x62f/0x4c20
[  378.159590]  ? percpu_ref_get_many+0x240/0x240
[  378.164170]  ? print_usage_bug+0xc0/0xc0
[  378.168232]  ? zap_class+0x640/0x640
[  378.171947]  ? print_usage_bug+0xc0/0xc0
[  378.176003]  ? print_usage_bug+0xc0/0xc0
[  378.180061]  ? zap_class+0x640/0x640
[  378.183777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.189316]  ? find_held_lock+0x36/0x1c0
[  378.193397]  ? mark_held_locks+0xc7/0x130
[  378.197545]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  378.202646]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  378.207750]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  378.212329]  ? trace_hardirqs_on+0xbd/0x310
[  378.216646]  ? kasan_check_read+0x11/0x20
[  378.220793]  ? ___ratelimit+0x3b4/0x672
[  378.224765]  ? trace_hardirqs_off_caller+0x310/0x310
[  378.229884]  ? trace_hardirqs_on+0x310/0x310
[  378.234406]  ? lock_downgrade+0x900/0x900
[  378.238557]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  378.243654]  ? ___ratelimit+0x3b9/0x672
[  378.247624]  ? idr_get_free+0xf70/0xf70
[  378.251680]  ? find_held_lock+0x36/0x1c0
[  378.255745]  oom_kill_process.cold.27+0x10/0x903
[  378.260500]  ? zap_class+0x640/0x640
[  378.264297]  ? check_preemption_disabled+0x48/0x280
[  378.269310]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.274238]  ? kasan_check_read+0x11/0x20
[  378.278384]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.283661]  ? oom_evaluate_task+0x540/0x540
[  378.288069]  ? find_held_lock+0x36/0x1c0
[  378.292145]  ? out_of_memory+0x974/0x1430
[  378.296291]  ? lock_downgrade+0x900/0x900
[  378.300448]  ? check_preemption_disabled+0x48/0x280
[  378.305463]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.310385]  ? kasan_check_read+0x11/0x20
[  378.314528]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.319804]  ? rcu_softirq_qs+0x20/0x20
[  378.323787]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.329350]  ? oom_evaluate_task+0x302/0x540
[  378.333761]  out_of_memory+0xa84/0x1430
[  378.337742]  ? oom_killer_disable+0x3a0/0x3a0
[  378.342237]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  378.347165]  ? __ww_mutex_check_waiters+0x160/0x160
[  378.352191]  __alloc_pages_slowpath+0x2354/0x2e10
[  378.357058]  ? warn_alloc+0x120/0x120
[  378.360871]  ? mark_held_locks+0x130/0x130
[  378.365215]  ? find_get_entry+0xaae/0x1120
[  378.369458]  ? filemap_map_pages+0x1a20/0x1a20
[  378.374042]  ? zap_class+0x640/0x640
[  378.377758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.383299]  ? check_preemption_disabled+0x48/0x280
[  378.388337]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.393881]  ? should_fail+0x22d/0xd01
[  378.397776]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.402876]  ? zap_class+0x640/0x640
[  378.406612]  ? __lock_is_held+0xb5/0x140
[  378.410676]  ? mark_held_locks+0x130/0x130
[  378.414912]  ? lock_release+0xa00/0xa00
[  378.418969]  ? perf_trace_sched_process_exec+0x860/0x860
[  378.424499]  ? xa_load+0x2ba/0x460
[  378.428040]  ? lock_downgrade+0x900/0x900
[  378.432207]  ? __might_sleep+0x95/0x190
[  378.436197]  __alloc_pages_nodemask+0xa80/0xde0
[  378.440888]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  378.445905]  ? __page_cache_alloc+0x191/0x5c0
[  378.450393]  ? xa_load+0x2e1/0x460
[  378.453941]  ? xa_clear_mark+0x40/0x40
[  378.457857]  ? zap_class+0x640/0x640
[  378.461591]  ? zap_class+0x640/0x640
[  378.465311]  ? zap_class+0x640/0x640
[  378.469020]  ? __do_page_cache_readahead+0x663/0x810
[  378.474121]  ? find_held_lock+0x36/0x1c0
[  378.478184]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  378.483722]  alloc_pages_current+0x173/0x350
[  378.488131]  __page_cache_alloc+0x38c/0x5c0
[  378.492463]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.497390]  ? kasan_check_read+0x11/0x20
[  378.501567]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.506867]  ? generic_perform_write+0x6a0/0x6a0
[  378.511621]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.517156]  ? check_preemption_disabled+0x48/0x280
[  378.522174]  filemap_fault+0x1595/0x25f0
[  378.526245]  ? __lock_page_or_retry+0xa00/0xa00
[  378.530913]  ? mark_held_locks+0x130/0x130
[  378.535157]  ? filemap_map_pages+0xd6b/0x1a20
[  378.539650]  ? lock_downgrade+0x900/0x900
[  378.543795]  ? check_preemption_disabled+0x48/0x280
[  378.548814]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.553754]  ? kasan_check_read+0x11/0x20
[  378.557898]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.563173]  ? rcu_softirq_qs+0x20/0x20
[  378.567159]  ? filemap_map_pages+0xd92/0x1a20
[  378.571661]  ? find_get_entries_tag+0x1400/0x1400
[  378.576495]  ? find_held_lock+0x36/0x1c0
[  378.580566]  ? lock_acquire+0x1ed/0x520
[  378.584532]  ? ext4_filemap_fault+0x7a/0xad
[  378.588956]  ? lock_release+0xa00/0xa00
[  378.592936]  ? perf_trace_sched_process_exec+0x860/0x860
[  378.598399]  ? print_usage_bug+0xc0/0xc0
[  378.602484]  ? down_read+0x8d/0x120
[  378.606104]  ? ext4_filemap_fault+0x7a/0xad
[  378.610423]  ? __down_interruptible+0x700/0x700
[  378.615116]  ? find_held_lock+0x36/0x1c0
[  378.619174]  ext4_filemap_fault+0x82/0xad
[  378.623323]  __do_fault+0x100/0x6b0
[  378.626947]  ? lock_downgrade+0x900/0x900
[  378.631093]  ? pmd_devmap_trans_unstable+0x220/0x220
[  378.636201]  ? kasan_check_read+0x11/0x20
[  378.640347]  ? do_raw_spin_unlock+0xa7/0x330
[  378.644749]  ? do_raw_spin_trylock+0x270/0x270
[  378.649348]  __handle_mm_fault+0x3ea0/0x5be0
[  378.653794]  ? perf_trace_lock+0x7a0/0x7a0
[  378.658042]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  378.662892]  ? __switch_to_asm+0x34/0x70
[  378.666950]  ? __switch_to_asm+0x34/0x70
[  378.671024]  ? zap_class+0x640/0x640
[  378.674732]  ? zap_class+0x640/0x640
[  378.678447]  ? __x64_sys_futex+0x53e/0x6a0
[  378.682682]  ? find_held_lock+0x36/0x1c0
[  378.686748]  ? handle_mm_fault+0x42a/0xc70
[  378.690980]  ? lock_downgrade+0x900/0x900
[  378.695127]  ? check_preemption_disabled+0x48/0x280
[  378.700144]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  378.705071]  ? kasan_check_read+0x11/0x20
[  378.709216]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.714584]  ? rcu_softirq_qs+0x20/0x20
[  378.718566]  ? trace_hardirqs_off_caller+0x310/0x310
[  378.723674]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.729204]  ? check_preemption_disabled+0x48/0x280
[  378.734221]  handle_mm_fault+0x54f/0xc70
[  378.738283]  ? __handle_mm_fault+0x5be0/0x5be0
[  378.742875]  ? find_vma+0x34/0x190
[  378.746420]  __do_page_fault+0x5e8/0xe60
[  378.750475]  ? trace_hardirqs_off+0xb8/0x310
[  378.754902]  do_page_fault+0xf2/0x7e0
[  378.758703]  ? vmalloc_sync_all+0x30/0x30
[  378.762847]  ? error_entry+0x70/0xd0
[  378.766561]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.771657]  ? trace_hardirqs_on_caller+0xc0/0x310
[  378.776580]  ? syscall_return_slowpath+0x5e0/0x5e0
[  378.781507]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.786346]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.791358]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  378.796814]  ? prepare_exit_to_usermode+0x291/0x3b0
[  378.801826]  ? page_fault+0x8/0x30
[  378.805372]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.810217]  ? page_fault+0x8/0x30
[  378.813752]  page_fault+0x1e/0x30
[  378.817211] RIP: 0033:0x404068
[  378.820412] Code: Bad RIP value.
[  378.823767] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  378.829127] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  378.836388] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  378.843649] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  378.850935] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  378.858197] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  378.865476] warn_alloc_show_mem: 1 callbacks suppressed
[  378.865485] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  378.865486] Mem-Info:
[  378.865516] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  378.865516]  active_file:13 inactive_file:13 isolated_file:0
[  378.865516]  unevictable:0 dirty:0 writeback:0 unstable:0
[  378.865516]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  378.865516]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  378.865516]  free:13747 free_pcp:348 free_cma:0
[  378.870845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  378.870855] Call Trace:
[  378.878216] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  378.880605]  <IRQ>
[  378.914114] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  378.923471]  dump_stack+0x244/0x39d
[  378.926018] lowmem_reserve[]: 0 2818 6321 6321
[  378.953890]  ? dump_stack_print_info.cold.1+0x20/0x20
[  378.956025] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  378.982133]  warn_alloc.cold.116+0xb7/0x1bd
[  378.985719] lowmem_reserve[]: 0 0 3503 3503
[  378.990290]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  378.995450] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  379.022939]  ? lock_downgrade+0x900/0x900
[  379.027230] lowmem_reserve[]: 0 0 0 0
[  379.031557]  ? trace_hardirqs_off+0xb8/0x310
[  379.036367] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  379.065976]  ? trace_hardirqs_off+0xb8/0x310
[  379.070091] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  379.073964]  __alloc_pages_slowpath+0x26e8/0x2e10
[  379.078344] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  379.091896]  ? warn_alloc+0x120/0x120
[  379.096260] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  379.111156]  ? print_usage_bug+0xc0/0xc0
[  379.115975] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  379.131127]  ? warn_alloc+0x120/0x120
[  379.134899] 4484 total pagecache pages
[  379.143723]  ? warn_alloc+0x120/0x120
[  379.147864] 0 pages in swap cache
[  379.156422]  ? print_usage_bug+0xc0/0xc0
[  379.160201] Swap cache stats: add 0, delete 0, find 0/0
[  379.164074]  ? print_usage_bug+0xc0/0xc0
[  379.167844] Free swap  = 0kB
[  379.171286]  ? __lock_acquire+0x62f/0x4c20
[  379.175327] Total swap = 0kB
[  379.180681]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.184813] 1965979 pages RAM
[  379.187815]  ? should_fail+0x22d/0xd01
[  379.192018] 0 pages HighMem/MovableOnly
[  379.192026] 342854 pages reserved
[  379.195038]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.200545] 0 pages cma reserved
[  379.203640]  ? __lock_acquire+0x62f/0x4c20
[  379.207551] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  379.211462]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.214946] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  379.219979]  ? __lock_acquire+0x62f/0x4c20
[  379.223323] syz-fuzzer cpuset=/ mems_allowed=0
[  379.227559]  ? should_fail+0x22d/0xd01
[  379.227582]  ? mark_held_locks+0x130/0x130
[  379.266222]  ? mark_held_locks+0x130/0x130
[  379.270451]  ? zap_class+0x640/0x640
[  379.274164]  ? zap_class+0x640/0x640
[  379.277875]  ? print_usage_bug+0xc0/0xc0
[  379.281935]  ? wq_watchdog_touch+0x9c/0xfe
[  379.286169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.291708]  ? check_preemption_disabled+0x48/0x280
[  379.296729]  ? __lock_is_held+0xb5/0x140
[  379.300798]  __alloc_pages_nodemask+0xa80/0xde0
[  379.305461]  ? zap_class+0x640/0x640
[  379.309200]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  379.314221]  ? find_held_lock+0x36/0x1c0
[  379.318286]  ? ____cache_alloc_node+0x1c7/0x1e0
[  379.322958]  ? lock_downgrade+0x900/0x900
[  379.327108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.332648]  cache_grow_begin+0xa5/0x8c0
[  379.336702]  ? do_raw_spin_unlock+0xa7/0x330
[  379.341110]  fallback_alloc+0x204/0x2e0
[  379.345086]  ____cache_alloc_node+0x1c7/0x1e0
[  379.349583]  kmem_cache_alloc_node+0xe3/0x730
[  379.354073]  ? ipv6_get_ifaddr+0x42e/0x620
[  379.358332]  __alloc_skb+0x119/0x770
[  379.362037]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.367321]  ? netdev_alloc_frag+0x1f0/0x1f0
[  379.371732]  ? lock_downgrade+0x900/0x900
[  379.375903]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.381437]  ? refcount_sub_and_test_checked+0x203/0x310
[  379.386910]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  379.392354]  ? addrconf_rs_timer+0x690/0x690
[  379.396786]  ndisc_alloc_skb+0x144/0x340
[  379.400886]  ndisc_send_rs+0x331/0x6e0
[  379.404783]  addrconf_rs_timer+0x314/0x690
[  379.409041]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.413307]  call_timer_fn+0x272/0x920
[  379.417189]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.421432]  ? process_timeout+0x40/0x40
[  379.425496]  ? __run_timers+0x7da/0xc70
[  379.429465]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.433959]  ? _raw_spin_unlock_irq+0x27/0x80
[  379.438452]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.442783]  ? lockdep_hardirqs_on+0x296/0x5b0
[  379.447461]  ? trace_hardirqs_on+0xbd/0x310
[  379.451779]  ? kasan_check_read+0x11/0x20
[  379.456033]  ? __run_timers+0x7da/0xc70
[  379.460004]  ? trace_hardirqs_off_caller+0x310/0x310
[  379.465126]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  379.469352]  __run_timers+0x7e5/0xc70
[  379.473158]  ? timer_fixup_init+0x70/0x70
[  379.477310]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  379.482412]  ? zap_class+0x640/0x640
[  379.486129]  ? enqueue_hrtimer+0x1a5/0x560
[  379.490386]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  379.495580]  ? find_held_lock+0x36/0x1c0
[  379.499653]  ? zap_class+0x640/0x640
[  379.503367]  ? pvclock_read_flags+0x160/0x160
[  379.507949]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.513485]  ? check_preemption_disabled+0x48/0x280
[  379.518506]  ? __lock_is_held+0xb5/0x140
[  379.522565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.528101]  ? check_preemption_disabled+0x48/0x280
[  379.533119]  run_timer_softirq+0x52/0xb0
[  379.537317]  ? rcu_read_lock_sched_held+0x14f/0x180
[  379.542333]  __do_softirq+0x308/0xb7e
[  379.546142]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  379.550630]  ? lock_downgrade+0x900/0x900
[  379.554781]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  379.559890]  ? pvclock_read_flags+0x160/0x160
[  379.564384]  ? lapic_next_event+0x5a/0x90
[  379.568531]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.574070]  ? kvm_clock_read+0x18/0x30
[  379.578060]  ? kvm_sched_clock_read+0x9/0x20
[  379.582466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.587999]  ? check_preemption_disabled+0x48/0x280
[  379.593037]  irq_exit+0x17f/0x1c0
[  379.596488]  smp_apic_timer_interrupt+0x1cb/0x760
[  379.601325]  ? smp_reschedule_interrupt+0x109/0x650
[  379.606424]  ? smp_call_function_single_interrupt+0x650/0x650
[  379.612306]  ? interrupt_entry+0xb5/0xc0
[  379.616370]  ? trace_hardirqs_off_caller+0xbb/0x310
[  379.621379]  ? trace_hardirqs_off_caller+0xbb/0x310
[  379.626394]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.631234]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.636247]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.641264]  ? task_prio+0x50/0x50
[  379.644805]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.650336]  ? check_preemption_disabled+0x48/0x280
[  379.655356]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.660203]  apic_timer_interrupt+0xf/0x20
[  379.664422]  </IRQ>
[  379.666653] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  379.671579] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  379.690493] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  379.698296] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  379.705563] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  379.712831] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  379.720093] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  379.727361] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  379.734663]  skb_clone+0x1bb/0x500
[  379.738201]  ? finish_task_switch+0x2f4/0x910
[  379.742712]  ? skb_split+0x11e0/0x11e0
[  379.746602]  ? preempt_notifier_register+0x200/0x200
[  379.751702]  ? __switch_to_asm+0x34/0x70
[  379.755769]  ? __switch_to_asm+0x34/0x70
[  379.759822]  ? __switch_to_asm+0x40/0x70
[  379.763875]  ? __switch_to_asm+0x34/0x70
[  379.767951]  ? __switch_to_asm+0x40/0x70
[  379.772008]  ? __switch_to_asm+0x34/0x70
[  379.776063]  ? __switch_to_asm+0x40/0x70
[  379.780117]  ? __switch_to_asm+0x34/0x70
[  379.784188]  ? __switch_to_asm+0x34/0x70
[  379.788240]  ? __switch_to_asm+0x40/0x70
[  379.792307]  ? __switch_to_asm+0x34/0x70
[  379.796368]  bpf_clone_redirect+0xb9/0x490
[  379.800603]  ? __schedule+0x8d7/0x21d0
[  379.804495]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  379.809507]  ? __sched_text_start+0x8/0x8
[  379.813648]  ? retint_kernel+0x2d/0x2d
[  379.817558]  ? find_held_lock+0x36/0x1c0
[  379.821640]  ? lock_acquire+0x1ed/0x520
[  379.825612]  ? bpf_test_run+0x3cb/0x780
[  379.829586]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.835119]  ? check_preemption_disabled+0x48/0x280
[  379.840136]  ? kasan_check_read+0x11/0x20
[  379.844287]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.849559]  ? rcu_softirq_qs+0x20/0x20
[  379.853529]  ? preempt_schedule+0x4d/0x60
[  379.857676]  ? ___preempt_schedule+0x16/0x18
[  379.862086]  ? bpf_test_run+0x25d/0x780
[  379.866086]  ? netlink_diag_dump+0x2a0/0x2a0
[  379.870498]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.876035]  ? bpf_test_init.isra.10+0x70/0x100
[  379.880705]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  379.885478]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  379.890345]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  379.895878]  ? fput+0x130/0x1a0
[  379.899155]  ? __bpf_prog_get+0x9b/0x290
[  379.903234]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  379.908073]  ? bpf_prog_test_run+0x130/0x1a0
[  379.912490]  ? __x64_sys_bpf+0x3d8/0x520
[  379.916564]  ? bpf_prog_get+0x20/0x20
[  379.920381]  ? do_syscall_64+0x1b9/0x820
[  379.924437]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  379.929799]  ? syscall_return_slowpath+0x5e0/0x5e0
[  379.934813]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.939656]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.944760]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  379.949777]  ? prepare_exit_to_usermode+0x291/0x3b0
[  379.954796]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.959643]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  379.965130] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  379.965193] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  379.972226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  379.972230] Call Trace:
[  379.972236]  <IRQ>
[  379.972252]  dump_stack+0x244/0x39d
[  379.972273]  ? dump_stack_print_info.cold.1+0x20/0x20
[  379.978816] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  379.988097]  warn_alloc.cold.116+0xb7/0x1bd
[  379.990646] syz-executor2 cpuset=syz2 mems_allowed=0
[  379.992789]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  380.026380]  ? lock_downgrade+0x900/0x900
[  380.030533]  ? trace_hardirqs_off+0xb8/0x310
[  380.034946]  ? trace_hardirqs_off+0xb8/0x310
[  380.039374]  __alloc_pages_slowpath+0x26e8/0x2e10
[  380.044241]  ? warn_alloc+0x120/0x120
[  380.048042]  ? print_usage_bug+0xc0/0xc0
[  380.052103]  ? warn_alloc+0x120/0x120
[  380.055919]  ? warn_alloc+0x120/0x120
[  380.059721]  ? print_usage_bug+0xc0/0xc0
[  380.063787]  ? print_usage_bug+0xc0/0xc0
[  380.067846]  ? __lock_acquire+0x62f/0x4c20
[  380.072087]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.077618]  ? should_fail+0x22d/0xd01
[  380.081504]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.086607]  ? __lock_acquire+0x62f/0x4c20
[  380.090843]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.095940]  ? __lock_acquire+0x62f/0x4c20
[  380.100193]  ? should_fail+0x22d/0xd01
[  380.104073]  ? find_held_lock+0x36/0x1c0
[  380.108136]  ? mark_held_locks+0x130/0x130
[  380.112466]  ? mark_held_locks+0x130/0x130
[  380.116713]  ? zap_class+0x640/0x640
[  380.120427]  ? zap_class+0x640/0x640
[  380.124137]  ? print_usage_bug+0xc0/0xc0
[  380.128188]  ? do_raw_spin_unlock+0xa7/0x330
[  380.132591]  ? zap_class+0x640/0x640
[  380.136334]  ? print_usage_bug+0xc0/0xc0
[  380.140397]  ? wq_watchdog_touch+0x9c/0xfe
[  380.144628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.150187]  ? check_preemption_disabled+0x48/0x280
[  380.155214]  ? __lock_is_held+0xb5/0x140
[  380.159288]  __alloc_pages_nodemask+0xa80/0xde0
[  380.163952]  ? zap_class+0x640/0x640
[  380.167668]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  380.172721]  ? find_held_lock+0x36/0x1c0
[  380.176825]  ? ____cache_alloc_node+0x1c7/0x1e0
[  380.181512]  ? lock_downgrade+0x900/0x900
[  380.185663]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.191208]  cache_grow_begin+0xa5/0x8c0
[  380.195282]  ? do_raw_spin_unlock+0xa7/0x330
[  380.199700]  fallback_alloc+0x204/0x2e0
[  380.203674]  ____cache_alloc_node+0x1c7/0x1e0
[  380.208184]  kmem_cache_alloc_node+0xe3/0x730
[  380.212676]  ? ipv6_get_ifaddr+0x42e/0x620
[  380.216924]  __alloc_skb+0x119/0x770
[  380.220630]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.225906]  ? netdev_alloc_frag+0x1f0/0x1f0
[  380.230310]  ? lock_downgrade+0x900/0x900
[  380.234465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.239998]  ? refcount_sub_and_test_checked+0x203/0x310
[  380.245446]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  380.250892]  ? addrconf_rs_timer+0x690/0x690
[  380.255324]  ndisc_alloc_skb+0x144/0x340
[  380.259388]  ndisc_send_rs+0x331/0x6e0
[  380.263279]  addrconf_rs_timer+0x314/0x690
[  380.267727]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.271995]  call_timer_fn+0x272/0x920
[  380.275881]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.280119]  ? process_timeout+0x40/0x40
[  380.284183]  ? mark_held_locks+0xc7/0x130
[  380.288330]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.292820]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.297310]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.301541]  ? lockdep_hardirqs_on+0x296/0x5b0
[  380.306118]  ? trace_hardirqs_on+0xbd/0x310
[  380.310434]  ? kasan_check_read+0x11/0x20
[  380.314578]  ? __run_timers+0x7da/0xc70
[  380.318548]  ? trace_hardirqs_off_caller+0x310/0x310
[  380.323654]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.327895]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.332127]  __run_timers+0x7e5/0xc70
[  380.335934]  ? timer_fixup_init+0x70/0x70
[  380.340165]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  380.345179]  ? zap_class+0x640/0x640
[  380.348888]  ? print_usage_bug+0xc0/0xc0
[  380.352944]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  380.358134]  ? find_held_lock+0x36/0x1c0
[  380.362196]  ? zap_class+0x640/0x640
[  380.365921]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.371456]  ? check_preemption_disabled+0x48/0x280
[  380.376491]  ? __lock_is_held+0xb5/0x140
[  380.380550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.386105]  ? check_preemption_disabled+0x48/0x280
[  380.391120]  run_timer_softirq+0x52/0xb0
[  380.395192]  ? rcu_read_lock_sched_held+0x14f/0x180
[  380.400296]  __do_softirq+0x308/0xb7e
[  380.404130]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  380.408621]  ? lock_downgrade+0x900/0x900
[  380.412770]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  380.417894]  ? pvclock_read_flags+0x160/0x160
[  380.422403]  ? lapic_next_event+0x5a/0x90
[  380.426550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.432089]  ? kvm_clock_read+0x18/0x30
[  380.436056]  ? kvm_sched_clock_read+0x9/0x20
[  380.440464]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.445994]  ? check_preemption_disabled+0x48/0x280
[  380.451015]  irq_exit+0x17f/0x1c0
[  380.454463]  smp_apic_timer_interrupt+0x1cb/0x760
[  380.459300]  ? smp_call_function_single_interrupt+0x650/0x650
[  380.465181]  ? interrupt_entry+0xb5/0xc0
[  380.469238]  ? trace_hardirqs_off_caller+0xbb/0x310
[  380.474248]  ? trace_hardirqs_off_caller+0xbb/0x310
[  380.479264]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.484102]  ? trace_hardirqs_on_caller+0x310/0x310
[  380.489121]  ? trace_hardirqs_on_caller+0x310/0x310
[  380.494129]  ? task_prio+0x50/0x50
[  380.497672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.503205]  ? check_preemption_disabled+0x48/0x280
[  380.508224]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.513068]  apic_timer_interrupt+0xf/0x20
[  380.517291]  </IRQ>
[  380.519540] RIP: 0010:dump_stack+0x358/0x39d
[  380.523942] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  380.542857] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  380.550558] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  380.557906] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  380.565195] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  380.572461] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  380.580024] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  380.587391]  ? dump_stack+0x34f/0x39d
[  380.591211]  ? dump_stack_print_info.cold.1+0x20/0x20
[  380.596404]  ? mark_held_locks+0x130/0x130
[  380.600633]  ? mark_held_locks+0x130/0x130
[  380.604876]  dump_header+0x27b/0xf72
[  380.608599]  ? pagefault_out_of_memory+0x197/0x197
[  380.613540]  ? __lock_acquire+0x62f/0x4c20
[  380.617772]  ? percpu_ref_get_many+0x240/0x240
[  380.622352]  ? print_usage_bug+0xc0/0xc0
[  380.626418]  ? zap_class+0x640/0x640
[  380.630128]  ? print_usage_bug+0xc0/0xc0
[  380.634190]  ? print_usage_bug+0xc0/0xc0
[  380.638260]  ? zap_class+0x640/0x640
[  380.641975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.647514]  ? find_held_lock+0x36/0x1c0
[  380.651582]  ? mark_held_locks+0xc7/0x130
[  380.655825]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  380.660919]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  380.666019]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  380.670598]  ? trace_hardirqs_on+0xbd/0x310
[  380.674928]  ? kasan_check_read+0x11/0x20
[  380.679070]  ? ___ratelimit+0x3b4/0x672
[  380.683159]  ? trace_hardirqs_off_caller+0x310/0x310
[  380.688261]  ? trace_hardirqs_on+0x310/0x310
[  380.692679]  ? lock_downgrade+0x900/0x900
[  380.696833]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  380.701930]  ? ___ratelimit+0x3b9/0x672
[  380.705902]  ? idr_get_free+0xf70/0xf70
[  380.709883]  ? find_held_lock+0x36/0x1c0
[  380.713947]  oom_kill_process.cold.27+0x10/0x903
[  380.718701]  ? zap_class+0x640/0x640
[  380.722423]  ? check_preemption_disabled+0x48/0x280
[  380.727455]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.732378]  ? kasan_check_read+0x11/0x20
[  380.736520]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.741794]  ? oom_evaluate_task+0x540/0x540
[  380.746205]  ? find_held_lock+0x36/0x1c0
[  380.750272]  ? out_of_memory+0x974/0x1430
[  380.754420]  ? lock_downgrade+0x900/0x900
[  380.758564]  ? check_preemption_disabled+0x48/0x280
[  380.763589]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.768513]  ? kasan_check_read+0x11/0x20
[  380.772675]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.777959]  ? rcu_softirq_qs+0x20/0x20
[  380.781932]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.787566]  ? oom_evaluate_task+0x302/0x540
[  380.791975]  out_of_memory+0xa84/0x1430
[  380.795952]  ? oom_killer_disable+0x3a0/0x3a0
[  380.800444]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  380.805376]  ? __ww_mutex_check_waiters+0x160/0x160
[  380.810399]  __alloc_pages_slowpath+0x2354/0x2e10
[  380.815267]  ? warn_alloc+0x120/0x120
[  380.819074]  ? mark_held_locks+0x130/0x130
[  380.823313]  ? find_get_entry+0xaae/0x1120
[  380.827658]  ? filemap_map_pages+0x1a20/0x1a20
[  380.832245]  ? zap_class+0x640/0x640
[  380.835963]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.841501]  ? check_preemption_disabled+0x48/0x280
[  380.846516]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.852054]  ? should_fail+0x22d/0xd01
[  380.855945]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.861046]  ? zap_class+0x640/0x640
[  380.864785]  ? __lock_is_held+0xb5/0x140
[  380.868850]  ? mark_held_locks+0x130/0x130
[  380.873113]  ? lock_release+0xa00/0xa00
[  380.877088]  ? perf_trace_sched_process_exec+0x860/0x860
[  380.882537]  ? xa_load+0x2ba/0x460
[  380.886090]  ? lock_downgrade+0x900/0x900
[  380.890242]  ? __might_sleep+0x95/0x190
[  380.894699]  __alloc_pages_nodemask+0xa80/0xde0
[  380.899383]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  380.904397]  ? __page_cache_alloc+0x191/0x5c0
[  380.908889]  ? xa_load+0x2e1/0x460
[  380.912430]  ? xa_clear_mark+0x40/0x40
[  380.916319]  ? zap_class+0x640/0x640
[  380.920035]  ? zap_class+0x640/0x640
[  380.923754]  ? zap_class+0x640/0x640
[  380.927463]  ? __do_page_cache_readahead+0x663/0x810
[  380.932564]  ? find_held_lock+0x36/0x1c0
[  380.936649]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  380.942195]  alloc_pages_current+0x173/0x350
[  380.946608]  __page_cache_alloc+0x38c/0x5c0
[  380.950937]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  380.955865]  ? kasan_check_read+0x11/0x20
[  380.960010]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.965288]  ? generic_perform_write+0x6a0/0x6a0
[  380.970040]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.975576]  ? check_preemption_disabled+0x48/0x280
[  380.980594]  filemap_fault+0x1595/0x25f0
[  380.984668]  ? __lock_page_or_retry+0xa00/0xa00
[  380.989335]  ? mark_held_locks+0x130/0x130
[  380.993572]  ? filemap_map_pages+0xd6b/0x1a20
[  380.998062]  ? lock_downgrade+0x900/0x900
[  381.002291]  ? check_preemption_disabled+0x48/0x280
[  381.007305]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.012230]  ? kasan_check_read+0x11/0x20
[  381.016372]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.021647]  ? rcu_softirq_qs+0x20/0x20
[  381.025640]  ? filemap_map_pages+0xd92/0x1a20
[  381.030145]  ? find_get_entries_tag+0x1400/0x1400
[  381.034986]  ? find_held_lock+0x36/0x1c0
[  381.039065]  ? lock_acquire+0x1ed/0x520
[  381.043048]  ? ext4_filemap_fault+0x7a/0xad
[  381.047369]  ? lock_release+0xa00/0xa00
[  381.051339]  ? perf_trace_sched_process_exec+0x860/0x860
[  381.056786]  ? print_usage_bug+0xc0/0xc0
[  381.060855]  ? down_read+0x8d/0x120
[  381.064747]  ? ext4_filemap_fault+0x7a/0xad
[  381.069073]  ? __down_interruptible+0x700/0x700
[  381.073745]  ? find_held_lock+0x36/0x1c0
[  381.077805]  ext4_filemap_fault+0x82/0xad
[  381.082060]  __do_fault+0x100/0x6b0
[  381.085699]  ? lock_downgrade+0x900/0x900
[  381.089843]  ? pmd_devmap_trans_unstable+0x220/0x220
[  381.094964]  ? kasan_check_read+0x11/0x20
[  381.099105]  ? do_raw_spin_unlock+0xa7/0x330
[  381.103528]  ? do_raw_spin_trylock+0x270/0x270
[  381.108117]  __handle_mm_fault+0x3ea0/0x5be0
[  381.112521]  ? perf_trace_lock+0x7a0/0x7a0
[  381.116760]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  381.121605]  ? __switch_to_asm+0x34/0x70
[  381.125673]  ? __switch_to_asm+0x34/0x70
[  381.129743]  ? zap_class+0x640/0x640
[  381.133453]  ? zap_class+0x640/0x640
[  381.137166]  ? __x64_sys_futex+0x53e/0x6a0
[  381.141401]  ? find_held_lock+0x36/0x1c0
[  381.145468]  ? handle_mm_fault+0x42a/0xc70
[  381.149705]  ? lock_downgrade+0x900/0x900
[  381.153850]  ? check_preemption_disabled+0x48/0x280
[  381.158870]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.163794]  ? kasan_check_read+0x11/0x20
[  381.167937]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.173218]  ? rcu_softirq_qs+0x20/0x20
[  381.177208]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.182315]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.187851]  ? check_preemption_disabled+0x48/0x280
[  381.192869]  handle_mm_fault+0x54f/0xc70
[  381.196938]  ? __handle_mm_fault+0x5be0/0x5be0
[  381.201520]  ? find_vma+0x34/0x190
[  381.205063]  __do_page_fault+0x5e8/0xe60
[  381.209118]  ? trace_hardirqs_off+0xb8/0x310
[  381.213535]  do_page_fault+0xf2/0x7e0
[  381.217336]  ? vmalloc_sync_all+0x30/0x30
[  381.221478]  ? error_entry+0x70/0xd0
[  381.225195]  ? trace_hardirqs_off_caller+0xbb/0x310
[  381.230205]  ? trace_hardirqs_on_caller+0xc0/0x310
[  381.235133]  ? syscall_return_slowpath+0x5e0/0x5e0
[  381.240057]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.244897]  ? trace_hardirqs_on_caller+0x310/0x310
[  381.249906]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  381.255351]  ? prepare_exit_to_usermode+0x291/0x3b0
[  381.260364]  ? page_fault+0x8/0x30
[  381.263902]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.268748]  ? page_fault+0x8/0x30
[  381.272293]  page_fault+0x1e/0x30
[  381.275739] RIP: 0033:0x404068
[  381.278940] Code: Bad RIP value.
[  381.282311] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  381.287675] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  381.294939] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  381.302208] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  381.309490] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  381.316758] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  381.324043] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  381.324047] warn_alloc_show_mem: 1 callbacks suppressed
[  381.324053] Mem-Info:
[  381.331401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  381.336768] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  381.336768]  active_file:13 inactive_file:13 isolated_file:0
[  381.336768]  unevictable:0 dirty:0 writeback:0 unstable:0
[  381.336768]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  381.336768]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  381.336768]  free:13747 free_pcp:348 free_cma:0
[  381.339165] Call Trace:
[  381.348545] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  381.381556]  <IRQ>
[  381.384122] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  381.411960]  dump_stack+0x244/0x39d
[  381.414076] lowmem_reserve[]: 0 2818 6321 6321
[  381.440179]  ? dump_stack_print_info.cold.1+0x20/0x20
[  381.443785] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  381.448367]  warn_alloc.cold.116+0xb7/0x1bd
[  381.453536] lowmem_reserve[]: 0 0 3503 3503
[  381.481111]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  381.485401] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  381.489716]  ? lock_downgrade+0x900/0x900
[  381.494528] lowmem_reserve[]: 0 0 0 0
[  381.523672]  ? trace_hardirqs_off+0xb8/0x310
[  381.527798] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  381.531599]  ? trace_hardirqs_off+0xb8/0x310
[  381.535976] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  381.549514]  __alloc_pages_slowpath+0x26e8/0x2e10
[  381.553890] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  381.568827]  ? warn_alloc+0x120/0x120
[  381.573624] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  381.588794]  ? print_usage_bug+0xc0/0xc0
[  381.592568] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  381.601494]  ? warn_alloc+0x120/0x120
[  381.605528] 4484 total pagecache pages
[  381.614098]  ? warn_alloc+0x120/0x120
[  381.617892] 0 pages in swap cache
[  381.621765]  ? print_usage_bug+0xc0/0xc0
[  381.625551] Swap cache stats: add 0, delete 0, find 0/0
[  381.629015]  ? kvm_clock_read+0x18/0x30
[  381.633047] Free swap  = 0kB
[  381.638397]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  381.642338] Total swap = 0kB
[  381.645432]  ? print_usage_bug+0xc0/0xc0
[  381.650420] 1965979 pages RAM
[  381.653423]  ? __lock_acquire+0x62f/0x4c20
[  381.657457] 0 pages HighMem/MovableOnly
[  381.660551]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.664757] 342854 pages reserved
[  381.668721]  ? should_fail+0x22d/0xd01
[  381.674225] 0 pages cma reserved
[  381.674285] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  381.677665]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.677682]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.677697]  ? __lock_acquire+0x62f/0x4c20
[  381.681626] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  381.684928]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.691397] syz-fuzzer cpuset=/ mems_allowed=0
[  381.696658]  ? __lock_acquire+0x62f/0x4c20
[  381.696673]  ? should_fail+0x22d/0xd01
[  381.734070]  ? rcu_irq_exit+0x1a2/0x390
[  381.738053]  ? mark_held_locks+0x130/0x130
[  381.742292]  ? mark_held_locks+0x130/0x130
[  381.746528]  ? mark_held_locks+0xc7/0x130
[  381.750684]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  381.755705]  ? zap_class+0x640/0x640
[  381.759414]  ? print_usage_bug+0xc0/0xc0
[  381.763477]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.769015]  ? check_preemption_disabled+0x48/0x280
[  381.774037]  ? __lock_is_held+0xb5/0x140
[  381.778118]  __alloc_pages_nodemask+0xa80/0xde0
[  381.782788]  ? zap_class+0x640/0x640
[  381.786502]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  381.791540]  ? find_held_lock+0x36/0x1c0
[  381.795613]  ? ____cache_alloc_node+0x1c7/0x1e0
[  381.800283]  ? lock_downgrade+0x900/0x900
[  381.804436]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.809976]  cache_grow_begin+0xa5/0x8c0
[  381.814037]  ? do_raw_spin_unlock+0xa7/0x330
[  381.818446]  fallback_alloc+0x204/0x2e0
[  381.822425]  ____cache_alloc_node+0x1c7/0x1e0
[  381.827020]  kmem_cache_alloc_node+0xe3/0x730
[  381.831516]  ? ipv6_get_ifaddr+0x42e/0x620
[  381.835760]  __alloc_skb+0x119/0x770
[  381.839468]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.844744]  ? netdev_alloc_frag+0x1f0/0x1f0
[  381.849151]  ? lock_downgrade+0x900/0x900
[  381.853305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.858844]  ? refcount_sub_and_test_checked+0x203/0x310
[  381.864310]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  381.869759]  ? addrconf_rs_timer+0x690/0x690
[  381.874175]  ndisc_alloc_skb+0x144/0x340
[  381.878241]  ndisc_send_rs+0x331/0x6e0
[  381.882139]  addrconf_rs_timer+0x314/0x690
[  381.886377]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.890635]  call_timer_fn+0x272/0x920
[  381.894519]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.898760]  ? process_timeout+0x40/0x40
[  381.902826]  ? __run_timers+0x7da/0xc70
[  381.906815]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.911306]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.915798]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.920027]  ? lockdep_hardirqs_on+0x296/0x5b0
[  381.924605]  ? trace_hardirqs_on+0xbd/0x310
[  381.928939]  ? kasan_check_read+0x11/0x20
[  381.933086]  ? __run_timers+0x7da/0xc70
[  381.937088]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.942197]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.946441]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.950668]  __run_timers+0x7e5/0xc70
[  381.954475]  ? timer_fixup_init+0x70/0x70
[  381.958619]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  381.963632]  ? zap_class+0x640/0x640
[  381.967342]  ? enqueue_hrtimer+0x1a5/0x560
[  381.971576]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  381.976772]  ? find_held_lock+0x36/0x1c0
[  381.980933]  ? zap_class+0x640/0x640
[  381.984647]  ? pvclock_read_flags+0x160/0x160
[  381.989143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.994685]  ? check_preemption_disabled+0x48/0x280
[  381.999707]  ? __lock_is_held+0xb5/0x140
[  382.003767]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.009301]  ? check_preemption_disabled+0x48/0x280
[  382.014330]  run_timer_softirq+0x52/0xb0
[  382.018398]  ? rcu_read_lock_sched_held+0x14f/0x180
[  382.023411]  __do_softirq+0x308/0xb7e
[  382.027212]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  382.031703]  ? lock_downgrade+0x900/0x900
[  382.035875]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  382.040983]  ? pvclock_read_flags+0x160/0x160
[  382.045485]  ? lapic_next_event+0x5a/0x90
[  382.049631]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.055172]  ? kvm_clock_read+0x18/0x30
[  382.059141]  ? kvm_sched_clock_read+0x9/0x20
[  382.063553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.069092]  ? check_preemption_disabled+0x48/0x280
[  382.074118]  irq_exit+0x17f/0x1c0
[  382.077578]  smp_apic_timer_interrupt+0x1cb/0x760
[  382.082433]  ? smp_reschedule_interrupt+0x109/0x650
[  382.087446]  ? smp_call_function_single_interrupt+0x650/0x650
[  382.093329]  ? interrupt_entry+0xb5/0xc0
[  382.097387]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.102399]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.107412]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.112252]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.117264]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.122280]  ? task_prio+0x50/0x50
[  382.125816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.131350]  ? check_preemption_disabled+0x48/0x280
[  382.136379]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.141226]  apic_timer_interrupt+0xf/0x20
[  382.145453]  </IRQ>
[  382.147686] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  382.152615] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  382.171509] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  382.179219] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  382.186482] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  382.193761] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  382.201027] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  382.208291] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  382.215590]  skb_clone+0x1bb/0x500
[  382.219145]  ? finish_task_switch+0x2f4/0x910
[  382.223637]  ? skb_split+0x11e0/0x11e0
[  382.227529]  ? preempt_notifier_register+0x200/0x200
[  382.232626]  ? __switch_to_asm+0x34/0x70
[  382.236683]  ? __switch_to_asm+0x34/0x70
[  382.240736]  ? __switch_to_asm+0x40/0x70
[  382.244792]  ? __switch_to_asm+0x34/0x70
[  382.248850]  ? __switch_to_asm+0x40/0x70
[  382.252907]  ? __switch_to_asm+0x34/0x70
[  382.256962]  ? __switch_to_asm+0x40/0x70
[  382.261103]  ? __switch_to_asm+0x34/0x70
[  382.265168]  ? __switch_to_asm+0x34/0x70
[  382.269225]  ? __switch_to_asm+0x40/0x70
[  382.273297]  ? __switch_to_asm+0x34/0x70
[  382.277357]  bpf_clone_redirect+0xb9/0x490
[  382.281589]  ? __schedule+0x8d7/0x21d0
[  382.285480]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  382.290500]  ? __sched_text_start+0x8/0x8
[  382.294653]  ? retint_kernel+0x2d/0x2d
[  382.298551]  ? find_held_lock+0x36/0x1c0
[  382.302620]  ? lock_acquire+0x1ed/0x520
[  382.306590]  ? bpf_test_run+0x3cb/0x780
[  382.310565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.316100]  ? check_preemption_disabled+0x48/0x280
[  382.321119]  ? kasan_check_read+0x11/0x20
[  382.325355]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.330630]  ? rcu_softirq_qs+0x20/0x20
[  382.334619]  ? preempt_schedule+0x4d/0x60
[  382.338763]  ? ___preempt_schedule+0x16/0x18
[  382.343178]  ? bpf_test_run+0x25d/0x780
[  382.347162]  ? netlink_diag_dump+0x2a0/0x2a0
[  382.351570]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.357103]  ? bpf_test_init.isra.10+0x70/0x100
[  382.361774]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  382.366574]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  382.371417]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  382.376958]  ? fput+0x130/0x1a0
[  382.380237]  ? __bpf_prog_get+0x9b/0x290
[  382.384301]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  382.389139]  ? bpf_prog_test_run+0x130/0x1a0
[  382.393548]  ? __x64_sys_bpf+0x3d8/0x520
[  382.397605]  ? bpf_prog_get+0x20/0x20
[  382.401421]  ? do_syscall_64+0x1b9/0x820
[  382.405474]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  382.410835]  ? syscall_return_slowpath+0x5e0/0x5e0
[  382.415780]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.420624]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.425648]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  382.430679]  ? prepare_exit_to_usermode+0x291/0x3b0
[  382.435697]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.440547]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  382.445924] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  382.445984] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  382.452936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  382.452941] Call Trace:
[  382.452946]  <IRQ>
[  382.452963]  dump_stack+0x244/0x39d
[  382.452982]  ? dump_stack_print_info.cold.1+0x20/0x20
[  382.459525] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  382.468813]  warn_alloc.cold.116+0xb7/0x1bd
[  382.471362] syz-executor2 cpuset=syz2 mems_allowed=0
[  382.473499]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  382.507203]  ? lock_downgrade+0x900/0x900
[  382.511366]  ? trace_hardirqs_off+0xb8/0x310
[  382.515780]  ? trace_hardirqs_off+0xb8/0x310
[  382.520190]  __alloc_pages_slowpath+0x26e8/0x2e10
[  382.525063]  ? warn_alloc+0x120/0x120
[  382.528860]  ? print_usage_bug+0xc0/0xc0
[  382.532917]  ? warn_alloc+0x120/0x120
[  382.536720]  ? warn_alloc+0x120/0x120
[  382.540629]  ? print_usage_bug+0xc0/0xc0
[  382.544706]  ? print_usage_bug+0xc0/0xc0
[  382.548763]  ? __lock_acquire+0x62f/0x4c20
[  382.552997]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.558531]  ? should_fail+0x22d/0xd01
[  382.562419]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.567521]  ? __lock_acquire+0x62f/0x4c20
[  382.571755]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.576870]  ? __lock_acquire+0x62f/0x4c20
[  382.581101]  ? should_fail+0x22d/0xd01
[  382.584981]  ? find_held_lock+0x36/0x1c0
[  382.589046]  ? mark_held_locks+0x130/0x130
[  382.593282]  ? mark_held_locks+0x130/0x130
[  382.597522]  ? zap_class+0x640/0x640
[  382.601252]  ? zap_class+0x640/0x640
[  382.604962]  ? print_usage_bug+0xc0/0xc0
[  382.609014]  ? do_raw_spin_unlock+0xa7/0x330
[  382.613422]  ? zap_class+0x640/0x640
[  382.617130]  ? print_usage_bug+0xc0/0xc0
[  382.621190]  ? wq_watchdog_touch+0x9c/0xfe
[  382.625441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.630979]  ? check_preemption_disabled+0x48/0x280
[  382.635999]  ? __lock_is_held+0xb5/0x140
[  382.640060]  __alloc_pages_nodemask+0xa80/0xde0
[  382.644736]  ? zap_class+0x640/0x640
[  382.648463]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  382.653498]  ? find_held_lock+0x36/0x1c0
[  382.657568]  ? ____cache_alloc_node+0x1c7/0x1e0
[  382.662235]  ? lock_downgrade+0x900/0x900
[  382.666384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.671929]  cache_grow_begin+0xa5/0x8c0
[  382.675989]  ? do_raw_spin_unlock+0xa7/0x330
[  382.680400]  fallback_alloc+0x204/0x2e0
[  382.684373]  ____cache_alloc_node+0x1c7/0x1e0
[  382.688872]  kmem_cache_alloc_node+0xe3/0x730
[  382.693366]  ? ipv6_get_ifaddr+0x42e/0x620
[  382.697610]  __alloc_skb+0x119/0x770
[  382.701322]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.706598]  ? netdev_alloc_frag+0x1f0/0x1f0
[  382.711002]  ? lock_downgrade+0x900/0x900
[  382.715262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.720886]  ? refcount_sub_and_test_checked+0x203/0x310
[  382.726333]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  382.731778]  ? addrconf_rs_timer+0x690/0x690
[  382.736208]  ndisc_alloc_skb+0x144/0x340
[  382.740268]  ndisc_send_rs+0x331/0x6e0
[  382.744161]  addrconf_rs_timer+0x314/0x690
[  382.748395]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.752642]  call_timer_fn+0x272/0x920
[  382.756525]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.760766]  ? process_timeout+0x40/0x40
[  382.764835]  ? mark_held_locks+0xc7/0x130
[  382.768996]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.773580]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.778068]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.782299]  ? lockdep_hardirqs_on+0x296/0x5b0
[  382.786963]  ? trace_hardirqs_on+0xbd/0x310
[  382.791283]  ? kasan_check_read+0x11/0x20
[  382.795423]  ? __run_timers+0x7da/0xc70
[  382.799392]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.804503]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.808762]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.813091]  __run_timers+0x7e5/0xc70
[  382.816898]  ? timer_fixup_init+0x70/0x70
[  382.821041]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  382.826065]  ? zap_class+0x640/0x640
[  382.829920]  ? print_usage_bug+0xc0/0xc0
[  382.833978]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  382.839169]  ? find_held_lock+0x36/0x1c0
[  382.843234]  ? zap_class+0x640/0x640
[  382.846951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.852509]  ? check_preemption_disabled+0x48/0x280
[  382.857539]  ? __lock_is_held+0xb5/0x140
[  382.861596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.867127]  ? check_preemption_disabled+0x48/0x280
[  382.872142]  run_timer_softirq+0x52/0xb0
[  382.876204]  ? rcu_read_lock_sched_held+0x14f/0x180
[  382.881219]  __do_softirq+0x308/0xb7e
[  382.885031]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  382.889526]  ? lock_downgrade+0x900/0x900
[  382.893674]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  382.899259]  ? pvclock_read_flags+0x160/0x160
[  382.903766]  ? lapic_next_event+0x5a/0x90
[  382.908014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.913559]  ? kvm_clock_read+0x18/0x30
[  382.917532]  ? kvm_sched_clock_read+0x9/0x20
[  382.921943]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.927489]  ? check_preemption_disabled+0x48/0x280
[  382.932513]  irq_exit+0x17f/0x1c0
[  382.935977]  smp_apic_timer_interrupt+0x1cb/0x760
[  382.940819]  ? smp_call_function_single_interrupt+0x650/0x650
[  382.946720]  ? interrupt_entry+0xb5/0xc0
[  382.950785]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.955795]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.960808]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.965647]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.970658]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.975674]  ? task_prio+0x50/0x50
[  382.979211]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.984746]  ? check_preemption_disabled+0x48/0x280
[  382.989760]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.994635]  apic_timer_interrupt+0xf/0x20
[  382.998855]  </IRQ>
[  383.001087] RIP: 0010:dump_stack+0x358/0x39d
[  383.005505] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  383.024398] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  383.032101] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  383.039362] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  383.046628] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  383.053902] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  383.061166] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  383.068774]  ? dump_stack+0x34f/0x39d
[  383.072692]  ? dump_stack_print_info.cold.1+0x20/0x20
[  383.077887]  ? mark_held_locks+0x130/0x130
[  383.082117]  ? mark_held_locks+0x130/0x130
[  383.086362]  dump_header+0x27b/0xf72
[  383.090096]  ? pagefault_out_of_memory+0x197/0x197
[  383.095030]  ? __lock_acquire+0x62f/0x4c20
[  383.099258]  ? percpu_ref_get_many+0x240/0x240
[  383.103864]  ? print_usage_bug+0xc0/0xc0
[  383.107931]  ? zap_class+0x640/0x640
[  383.111639]  ? print_usage_bug+0xc0/0xc0
[  383.115695]  ? print_usage_bug+0xc0/0xc0
[  383.119754]  ? zap_class+0x640/0x640
[  383.123471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.129040]  ? find_held_lock+0x36/0x1c0
[  383.133104]  ? mark_held_locks+0xc7/0x130
[  383.137260]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  383.142359]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  383.147466]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  383.152152]  ? trace_hardirqs_on+0xbd/0x310
[  383.156475]  ? kasan_check_read+0x11/0x20
[  383.160716]  ? ___ratelimit+0x3b4/0x672
[  383.164699]  ? trace_hardirqs_off_caller+0x310/0x310
[  383.169886]  ? trace_hardirqs_on+0x310/0x310
[  383.174320]  ? lock_downgrade+0x900/0x900
[  383.178474]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  383.183571]  ? ___ratelimit+0x3b9/0x672
[  383.187544]  ? idr_get_free+0xf70/0xf70
[  383.191530]  ? find_held_lock+0x36/0x1c0
[  383.195593]  oom_kill_process.cold.27+0x10/0x903
[  383.200343]  ? zap_class+0x640/0x640
[  383.204056]  ? check_preemption_disabled+0x48/0x280
[  383.209069]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.213995]  ? kasan_check_read+0x11/0x20
[  383.218150]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.223428]  ? oom_evaluate_task+0x540/0x540
[  383.227857]  ? find_held_lock+0x36/0x1c0
[  383.231922]  ? out_of_memory+0x974/0x1430
[  383.236074]  ? lock_downgrade+0x900/0x900
[  383.240217]  ? check_preemption_disabled+0x48/0x280
[  383.245230]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.250239]  ? kasan_check_read+0x11/0x20
[  383.254383]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.259787]  ? rcu_softirq_qs+0x20/0x20
[  383.263761]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.269307]  ? oom_evaluate_task+0x302/0x540
[  383.273714]  out_of_memory+0xa84/0x1430
[  383.277690]  ? oom_killer_disable+0x3a0/0x3a0
[  383.282179]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  383.287109]  ? __ww_mutex_check_waiters+0x160/0x160
[  383.292126]  __alloc_pages_slowpath+0x2354/0x2e10
[  383.297083]  ? warn_alloc+0x120/0x120
[  383.300870]  ? mark_held_locks+0x130/0x130
[  383.305106]  ? find_get_entry+0xaae/0x1120
[  383.309361]  ? filemap_map_pages+0x1a20/0x1a20
[  383.313940]  ? zap_class+0x640/0x640
[  383.317651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.323187]  ? check_preemption_disabled+0x48/0x280
[  383.328203]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.333733]  ? should_fail+0x22d/0xd01
[  383.337705]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.342819]  ? zap_class+0x640/0x640
[  383.346548]  ? __lock_is_held+0xb5/0x140
[  383.350616]  ? mark_held_locks+0x130/0x130
[  383.354862]  ? lock_release+0xa00/0xa00
[  383.358873]  ? perf_trace_sched_process_exec+0x860/0x860
[  383.364320]  ? xa_load+0x2ba/0x460
[  383.367956]  ? lock_downgrade+0x900/0x900
[  383.372111]  ? __might_sleep+0x95/0x190
[  383.376086]  __alloc_pages_nodemask+0xa80/0xde0
[  383.380761]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  383.385772]  ? __page_cache_alloc+0x191/0x5c0
[  383.390262]  ? xa_load+0x2e1/0x460
[  383.393803]  ? xa_clear_mark+0x40/0x40
[  383.397686]  ? zap_class+0x640/0x640
[  383.401422]  ? zap_class+0x640/0x640
[  383.405141]  ? zap_class+0x640/0x640
[  383.408863]  ? __do_page_cache_readahead+0x663/0x810
[  383.413993]  ? find_held_lock+0x36/0x1c0
[  383.418058]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  383.423597]  alloc_pages_current+0x173/0x350
[  383.428021]  __page_cache_alloc+0x38c/0x5c0
[  383.432339]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.437263]  ? kasan_check_read+0x11/0x20
[  383.441431]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.446708]  ? generic_perform_write+0x6a0/0x6a0
[  383.451461]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.456996]  ? check_preemption_disabled+0x48/0x280
[  383.462013]  filemap_fault+0x1595/0x25f0
[  383.466083]  ? __lock_page_or_retry+0xa00/0xa00
[  383.470754]  ? mark_held_locks+0x130/0x130
[  383.474993]  ? filemap_map_pages+0xd6b/0x1a20
[  383.479507]  ? lock_downgrade+0x900/0x900
[  383.483651]  ? check_preemption_disabled+0x48/0x280
[  383.488676]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.493603]  ? kasan_check_read+0x11/0x20
[  383.497750]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.503020]  ? rcu_softirq_qs+0x20/0x20
[  383.507006]  ? filemap_map_pages+0xd92/0x1a20
[  383.511510]  ? find_get_entries_tag+0x1400/0x1400
[  383.516364]  ? find_held_lock+0x36/0x1c0
[  383.520451]  ? lock_acquire+0x1ed/0x520
[  383.524432]  ? ext4_filemap_fault+0x7a/0xad
[  383.528756]  ? lock_release+0xa00/0xa00
[  383.532729]  ? perf_trace_sched_process_exec+0x860/0x860
[  383.538176]  ? print_usage_bug+0xc0/0xc0
[  383.542244]  ? down_read+0x8d/0x120
[  383.545863]  ? ext4_filemap_fault+0x7a/0xad
[  383.550180]  ? __down_interruptible+0x700/0x700
[  383.554846]  ? find_held_lock+0x36/0x1c0
[  383.558923]  ext4_filemap_fault+0x82/0xad
[  383.563084]  __do_fault+0x100/0x6b0
[  383.566723]  ? lock_downgrade+0x900/0x900
[  383.570870]  ? pmd_devmap_trans_unstable+0x220/0x220
[  383.575978]  ? kasan_check_read+0x11/0x20
[  383.580213]  ? do_raw_spin_unlock+0xa7/0x330
[  383.584620]  ? do_raw_spin_trylock+0x270/0x270
[  383.589212]  __handle_mm_fault+0x3ea0/0x5be0
[  383.593619]  ? perf_trace_lock+0x7a0/0x7a0
[  383.597868]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  383.602738]  ? __switch_to_asm+0x34/0x70
[  383.606790]  ? __switch_to_asm+0x34/0x70
[  383.610862]  ? zap_class+0x640/0x640
[  383.614574]  ? zap_class+0x640/0x640
[  383.618285]  ? __x64_sys_futex+0x53e/0x6a0
[  383.622522]  ? find_held_lock+0x36/0x1c0
[  383.626591]  ? handle_mm_fault+0x42a/0xc70
[  383.630940]  ? lock_downgrade+0x900/0x900
[  383.635090]  ? check_preemption_disabled+0x48/0x280
[  383.640108]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  383.645033]  ? kasan_check_read+0x11/0x20
[  383.649180]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.654564]  ? rcu_softirq_qs+0x20/0x20
[  383.658550]  ? trace_hardirqs_off_caller+0x310/0x310
[  383.663651]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.669210]  ? check_preemption_disabled+0x48/0x280
[  383.674227]  handle_mm_fault+0x54f/0xc70
[  383.678302]  ? __handle_mm_fault+0x5be0/0x5be0
[  383.682905]  ? find_vma+0x34/0x190
[  383.686454]  __do_page_fault+0x5e8/0xe60
[  383.690517]  ? trace_hardirqs_off+0xb8/0x310
[  383.694935]  do_page_fault+0xf2/0x7e0
[  383.698747]  ? vmalloc_sync_all+0x30/0x30
[  383.702890]  ? error_entry+0x70/0xd0
[  383.706601]  ? trace_hardirqs_off_caller+0xbb/0x310
[  383.711623]  ? trace_hardirqs_on_caller+0xc0/0x310
[  383.716552]  ? syscall_return_slowpath+0x5e0/0x5e0
[  383.721480]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.726341]  ? trace_hardirqs_on_caller+0x310/0x310
[  383.731439]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  383.736905]  ? prepare_exit_to_usermode+0x291/0x3b0
[  383.741914]  ? page_fault+0x8/0x30
[  383.745471]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.750312]  ? page_fault+0x8/0x30
[  383.753862]  page_fault+0x1e/0x30
[  383.757308] RIP: 0033:0x404068
[  383.760517] Code: Bad RIP value.
[  383.763877] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  383.769235] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  383.776501] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  383.783869] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  383.791134] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  383.798408] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  383.805694] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  383.805699] warn_alloc_show_mem: 1 callbacks suppressed
[  383.805705] Mem-Info:
[  383.813052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  383.813059] Call Trace:
[  383.818431] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  383.818431]  active_file:13 inactive_file:13 isolated_file:0
[  383.818431]  unevictable:0 dirty:0 writeback:0 unstable:0
[  383.818431]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  383.818431]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  383.818431]  free:13747 free_pcp:348 free_cma:0
[  383.820802]  <IRQ>
[  383.830157] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  383.832728]  dump_stack+0x244/0x39d
[  383.865753] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  383.867903]  ? dump_stack_print_info.cold.1+0x20/0x20
[  383.895710] lowmem_reserve[]: 0 2818 6321 6321
[  383.899348]  warn_alloc.cold.116+0xb7/0x1bd
[  383.925420] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  383.930605]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  383.935246] lowmem_reserve[]: 0 0 3503 3503
[  383.939559]  ? lock_downgrade+0x900/0x900
[  383.967026] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  383.971869]  ? trace_hardirqs_off+0xb8/0x310
[  383.976242] lowmem_reserve[]: 0 0 0 0
[  383.980391]  ? trace_hardirqs_off+0xb8/0x310
[  384.009505] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  384.013917]  __alloc_pages_slowpath+0x26e8/0x2e10
[  384.017696] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  384.022121]  ? warn_alloc+0x120/0x120
[  384.035595] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  384.040433]  ? print_usage_bug+0xc0/0xc0
[  384.055325] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  384.059107]  ? warn_alloc+0x120/0x120
[  384.074259] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  384.078304]  ? warn_alloc+0x120/0x120
[  384.087113] 4484 total pagecache pages
[  384.090902]  ? print_usage_bug+0xc0/0xc0
[  384.099468] 0 pages in swap cache
[  384.103253]  ? kvm_clock_read+0x18/0x30
[  384.107112] Swap cache stats: add 0, delete 0, find 0/0
[  384.111173]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  384.114597] Free swap  = 0kB
[  384.118557]  ? print_usage_bug+0xc0/0xc0
[  384.123888] Total swap = 0kB
[  384.123895] 1965979 pages RAM
[  384.128901]  ? __lock_acquire+0x62f/0x4c20
[  384.131891] 0 pages HighMem/MovableOnly
[  384.135942]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.138926] 342854 pages reserved
[  384.138933] 0 pages cma reserved
[  384.142035]  ? should_fail+0x22d/0xd01
[  384.146298] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  384.150202]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.150220]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.150236]  ? __lock_acquire+0x62f/0x4c20
[  384.155801] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  384.159197]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.162534] syz-fuzzer cpuset=/ mems_allowed=0
[  384.166412]  ? __lock_acquire+0x62f/0x4c20
[  384.211637]  ? should_fail+0x22d/0xd01
[  384.215520]  ? rcu_irq_exit+0x1a2/0x390
[  384.219498]  ? mark_held_locks+0x130/0x130
[  384.223733]  ? mark_held_locks+0x130/0x130
[  384.227972]  ? mark_held_locks+0xc7/0x130
[  384.232114]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  384.237130]  ? zap_class+0x640/0x640
[  384.240848]  ? print_usage_bug+0xc0/0xc0
[  384.244923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.250461]  ? check_preemption_disabled+0x48/0x280
[  384.255483]  ? __lock_is_held+0xb5/0x140
[  384.259548]  __alloc_pages_nodemask+0xa80/0xde0
[  384.264216]  ? zap_class+0x640/0x640
[  384.267936]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  384.273047]  ? find_held_lock+0x36/0x1c0
[  384.277118]  ? ____cache_alloc_node+0x1c7/0x1e0
[  384.281788]  ? lock_downgrade+0x900/0x900
[  384.285944]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.291477]  cache_grow_begin+0xa5/0x8c0
[  384.295557]  ? do_raw_spin_unlock+0xa7/0x330
[  384.299969]  fallback_alloc+0x204/0x2e0
[  384.303963]  ____cache_alloc_node+0x1c7/0x1e0
[  384.308547]  kmem_cache_alloc_node+0xe3/0x730
[  384.313040]  ? ipv6_get_ifaddr+0x42e/0x620
[  384.317278]  __alloc_skb+0x119/0x770
[  384.320989]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.326270]  ? netdev_alloc_frag+0x1f0/0x1f0
[  384.330700]  ? lock_downgrade+0x900/0x900
[  384.334855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.340389]  ? refcount_sub_and_test_checked+0x203/0x310
[  384.345847]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  384.351293]  ? addrconf_rs_timer+0x690/0x690
[  384.355729]  ndisc_alloc_skb+0x144/0x340
[  384.359791]  ndisc_send_rs+0x331/0x6e0
[  384.363678]  addrconf_rs_timer+0x314/0x690
[  384.367926]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.372207]  call_timer_fn+0x272/0x920
[  384.376089]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.380321]  ? process_timeout+0x40/0x40
[  384.384393]  ? __run_timers+0x7da/0xc70
[  384.388376]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.392883]  ? _raw_spin_unlock_irq+0x27/0x80
[  384.397383]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.401702]  ? lockdep_hardirqs_on+0x296/0x5b0
[  384.406286]  ? trace_hardirqs_on+0xbd/0x310
[  384.410615]  ? kasan_check_read+0x11/0x20
[  384.414758]  ? __run_timers+0x7da/0xc70
[  384.418729]  ? trace_hardirqs_off_caller+0x310/0x310
[  384.423832]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.428069]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  384.432300]  __run_timers+0x7e5/0xc70
[  384.436109]  ? timer_fixup_init+0x70/0x70
[  384.440258]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  384.445270]  ? zap_class+0x640/0x640
[  384.448987]  ? enqueue_hrtimer+0x1a5/0x560
[  384.453226]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  384.458416]  ? find_held_lock+0x36/0x1c0
[  384.462482]  ? zap_class+0x640/0x640
[  384.466198]  ? pvclock_read_flags+0x160/0x160
[  384.470692]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.476225]  ? check_preemption_disabled+0x48/0x280
[  384.481245]  ? __lock_is_held+0xb5/0x140
[  384.485315]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.490856]  ? check_preemption_disabled+0x48/0x280
[  384.495871]  run_timer_softirq+0x52/0xb0
[  384.499934]  ? rcu_read_lock_sched_held+0x14f/0x180
[  384.504947]  __do_softirq+0x308/0xb7e
[  384.508749]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  384.513247]  ? lock_downgrade+0x900/0x900
[  384.517395]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  384.522509]  ? pvclock_read_flags+0x160/0x160
[  384.527007]  ? lapic_next_event+0x5a/0x90
[  384.531152]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.536691]  ? kvm_clock_read+0x18/0x30
[  384.540668]  ? kvm_sched_clock_read+0x9/0x20
[  384.545073]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.550608]  ? check_preemption_disabled+0x48/0x280
[  384.555633]  irq_exit+0x17f/0x1c0
[  384.559085]  smp_apic_timer_interrupt+0x1cb/0x760
[  384.563924]  ? smp_reschedule_interrupt+0x109/0x650
[  384.568937]  ? smp_call_function_single_interrupt+0x650/0x650
[  384.574823]  ? interrupt_entry+0xb5/0xc0
[  384.578883]  ? trace_hardirqs_off_caller+0xbb/0x310
[  384.583903]  ? trace_hardirqs_off_caller+0xbb/0x310
[  384.588921]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.593764]  ? trace_hardirqs_on_caller+0x310/0x310
[  384.598779]  ? trace_hardirqs_on_caller+0x310/0x310
[  384.603793]  ? task_prio+0x50/0x50
[  384.607338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.612889]  ? check_preemption_disabled+0x48/0x280
[  384.617908]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.622756]  apic_timer_interrupt+0xf/0x20
[  384.626980]  </IRQ>
[  384.629215] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  384.634146] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  384.653038] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  384.660741] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  384.668005] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  384.675273] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  384.682535] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  384.689801] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  384.697100]  skb_clone+0x1bb/0x500
[  384.700640]  ? finish_task_switch+0x2f4/0x910
[  384.705133]  ? skb_split+0x11e0/0x11e0
[  384.709021]  ? preempt_notifier_register+0x200/0x200
[  384.714118]  ? __switch_to_asm+0x34/0x70
[  384.718175]  ? __switch_to_asm+0x34/0x70
[  384.722228]  ? __switch_to_asm+0x40/0x70
[  384.726282]  ? __switch_to_asm+0x34/0x70
[  384.730555]  ? __switch_to_asm+0x40/0x70
[  384.734610]  ? __switch_to_asm+0x34/0x70
[  384.738665]  ? __switch_to_asm+0x40/0x70
[  384.742721]  ? __switch_to_asm+0x34/0x70
[  384.746775]  ? __switch_to_asm+0x34/0x70
[  384.750869]  ? __switch_to_asm+0x40/0x70
[  384.754929]  ? __switch_to_asm+0x34/0x70
[  384.758994]  bpf_clone_redirect+0xb9/0x490
[  384.763230]  ? __schedule+0x8d7/0x21d0
[  384.767118]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  384.772134]  ? __sched_text_start+0x8/0x8
[  384.776294]  ? retint_kernel+0x2d/0x2d
[  384.780208]  ? find_held_lock+0x36/0x1c0
[  384.784277]  ? lock_acquire+0x1ed/0x520
[  384.788249]  ? bpf_test_run+0x3cb/0x780
[  384.792221]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.797756]  ? check_preemption_disabled+0x48/0x280
[  384.802772]  ? kasan_check_read+0x11/0x20
[  384.806918]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.812196]  ? rcu_softirq_qs+0x20/0x20
[  384.816168]  ? preempt_schedule+0x4d/0x60
[  384.820321]  ? ___preempt_schedule+0x16/0x18
[  384.824734]  ? bpf_test_run+0x25d/0x780
[  384.828715]  ? netlink_diag_dump+0x2a0/0x2a0
[  384.833123]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.838658]  ? bpf_test_init.isra.10+0x70/0x100
[  384.843337]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  384.848100]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  384.852936]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  384.858473]  ? fput+0x130/0x1a0
[  384.861759]  ? __bpf_prog_get+0x9b/0x290
[  384.865821]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  384.870661]  ? bpf_prog_test_run+0x130/0x1a0
[  384.875069]  ? __x64_sys_bpf+0x3d8/0x520
[  384.879130]  ? bpf_prog_get+0x20/0x20
[  384.882951]  ? do_syscall_64+0x1b9/0x820
[  384.887008]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  384.892377]  ? syscall_return_slowpath+0x5e0/0x5e0
[  384.897701]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.902552]  ? trace_hardirqs_on_caller+0x310/0x310
[  384.907587]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  384.912603]  ? prepare_exit_to_usermode+0x291/0x3b0
[  384.917622]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.922469]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  384.927850] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  384.927919] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  384.934861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  384.934868] Call Trace:
[  384.941415] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  384.950680]  <IRQ>
[  384.953247] syz-executor2 cpuset=syz2 mems_allowed=0
[  384.963724]  dump_stack+0x244/0x39d
[  384.974556]  ? dump_stack_print_info.cold.1+0x20/0x20
[  384.979755]  warn_alloc.cold.116+0xb7/0x1bd
[  384.984094]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  384.988937]  ? lock_downgrade+0x900/0x900
[  384.993097]  ? trace_hardirqs_off+0xb8/0x310
[  384.997511]  ? trace_hardirqs_off+0xb8/0x310
[  385.001927]  __alloc_pages_slowpath+0x26e8/0x2e10
[  385.006791]  ? warn_alloc+0x120/0x120
[  385.010588]  ? print_usage_bug+0xc0/0xc0
[  385.014651]  ? warn_alloc+0x120/0x120
[  385.018454]  ? warn_alloc+0x120/0x120
[  385.022251]  ? print_usage_bug+0xc0/0xc0
[  385.026321]  ? print_usage_bug+0xc0/0xc0
[  385.030386]  ? __lock_acquire+0x62f/0x4c20
[  385.034629]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.040165]  ? should_fail+0x22d/0xd01
[  385.044058]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.049156]  ? __lock_acquire+0x62f/0x4c20
[  385.053393]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.058493]  ? __lock_acquire+0x62f/0x4c20
[  385.062993]  ? should_fail+0x22d/0xd01
[  385.066886]  ? find_held_lock+0x36/0x1c0
[  385.070952]  ? mark_held_locks+0x130/0x130
[  385.075187]  ? mark_held_locks+0x130/0x130
[  385.079419]  ? zap_class+0x640/0x640
[  385.083131]  ? zap_class+0x640/0x640
[  385.086852]  ? print_usage_bug+0xc0/0xc0
[  385.090911]  ? do_raw_spin_unlock+0xa7/0x330
[  385.095335]  ? zap_class+0x640/0x640
[  385.099049]  ? print_usage_bug+0xc0/0xc0
[  385.103103]  ? wq_watchdog_touch+0x9c/0xfe
[  385.107362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.112914]  ? check_preemption_disabled+0x48/0x280
[  385.117938]  ? __lock_is_held+0xb5/0x140
[  385.122002]  __alloc_pages_nodemask+0xa80/0xde0
[  385.126783]  ? zap_class+0x640/0x640
[  385.130497]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  385.135522]  ? find_held_lock+0x36/0x1c0
[  385.139589]  ? ____cache_alloc_node+0x1c7/0x1e0
[  385.144254]  ? lock_downgrade+0x900/0x900
[  385.148412]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.153949]  cache_grow_begin+0xa5/0x8c0
[  385.158004]  ? do_raw_spin_unlock+0xa7/0x330
[  385.162414]  fallback_alloc+0x204/0x2e0
[  385.166390]  ____cache_alloc_node+0x1c7/0x1e0
[  385.170890]  kmem_cache_alloc_node+0xe3/0x730
[  385.175381]  ? ipv6_get_ifaddr+0x42e/0x620
[  385.179732]  __alloc_skb+0x119/0x770
[  385.183455]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.188731]  ? netdev_alloc_frag+0x1f0/0x1f0
[  385.193137]  ? lock_downgrade+0x900/0x900
[  385.197297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.202835]  ? refcount_sub_and_test_checked+0x203/0x310
[  385.208294]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  385.213738]  ? addrconf_rs_timer+0x690/0x690
[  385.218156]  ndisc_alloc_skb+0x144/0x340
[  385.222231]  ndisc_send_rs+0x331/0x6e0
[  385.226119]  addrconf_rs_timer+0x314/0x690
[  385.230447]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.234691]  call_timer_fn+0x272/0x920
[  385.238587]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.242816]  ? process_timeout+0x40/0x40
[  385.246885]  ? mark_held_locks+0xc7/0x130
[  385.251030]  ? _raw_spin_unlock_irq+0x27/0x80
[  385.255537]  ? _raw_spin_unlock_irq+0x27/0x80
[  385.260026]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.264349]  ? lockdep_hardirqs_on+0x296/0x5b0
[  385.268927]  ? trace_hardirqs_on+0xbd/0x310
[  385.273244]  ? kasan_check_read+0x11/0x20
[  385.277391]  ? __run_timers+0x7da/0xc70
[  385.281365]  ? trace_hardirqs_off_caller+0x310/0x310
[  385.286472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.290711]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.294942]  __run_timers+0x7e5/0xc70
[  385.298749]  ? timer_fixup_init+0x70/0x70
[  385.302896]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  385.307912]  ? zap_class+0x640/0x640
[  385.311629]  ? print_usage_bug+0xc0/0xc0
[  385.315691]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  385.320908]  ? find_held_lock+0x36/0x1c0
[  385.324967]  ? zap_class+0x640/0x640
[  385.328684]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.334217]  ? check_preemption_disabled+0x48/0x280
[  385.339237]  ? __lock_is_held+0xb5/0x140
[  385.343300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.348838]  ? check_preemption_disabled+0x48/0x280
[  385.353854]  run_timer_softirq+0x52/0xb0
[  385.357911]  ? rcu_read_lock_sched_held+0x14f/0x180
[  385.362925]  __do_softirq+0x308/0xb7e
[  385.366728]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  385.371216]  ? lock_downgrade+0x900/0x900
[  385.375363]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  385.380566]  ? pvclock_read_flags+0x160/0x160
[  385.385150]  ? lapic_next_event+0x5a/0x90
[  385.389305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.394851]  ? kvm_clock_read+0x18/0x30
[  385.398821]  ? kvm_sched_clock_read+0x9/0x20
[  385.403227]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.408791]  ? check_preemption_disabled+0x48/0x280
[  385.413814]  irq_exit+0x17f/0x1c0
[  385.417374]  smp_apic_timer_interrupt+0x1cb/0x760
[  385.422232]  ? smp_call_function_single_interrupt+0x650/0x650
[  385.428118]  ? interrupt_entry+0xb5/0xc0
[  385.432189]  ? trace_hardirqs_off_caller+0xbb/0x310
[  385.437204]  ? trace_hardirqs_off_caller+0xbb/0x310
[  385.442214]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.447056]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.452078]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.457089]  ? task_prio+0x50/0x50
[  385.460624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.466269]  ? check_preemption_disabled+0x48/0x280
[  385.471293]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.476143]  apic_timer_interrupt+0xf/0x20
[  385.480367]  </IRQ>
[  385.482599] RIP: 0010:dump_stack+0x358/0x39d
[  385.487017] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  385.505908] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  385.513610] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  385.520979] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  385.528242] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  385.535514] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  385.542780] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  385.550160]  ? dump_stack+0x34f/0x39d
[  385.553984]  ? dump_stack_print_info.cold.1+0x20/0x20
[  385.559171]  ? mark_held_locks+0x130/0x130
[  385.563401]  ? mark_held_locks+0x130/0x130
[  385.567634]  dump_header+0x27b/0xf72
[  385.571353]  ? pagefault_out_of_memory+0x197/0x197
[  385.576301]  ? __lock_acquire+0x62f/0x4c20
[  385.580537]  ? percpu_ref_get_many+0x240/0x240
[  385.585146]  ? print_usage_bug+0xc0/0xc0
[  385.589207]  ? zap_class+0x640/0x640
[  385.592918]  ? print_usage_bug+0xc0/0xc0
[  385.596976]  ? print_usage_bug+0xc0/0xc0
[  385.601035]  ? zap_class+0x640/0x640
[  385.604747]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.610286]  ? find_held_lock+0x36/0x1c0
[  385.614361]  ? mark_held_locks+0xc7/0x130
[  385.618506]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  385.623608]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  385.628711]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  385.633290]  ? trace_hardirqs_on+0xbd/0x310
[  385.637622]  ? kasan_check_read+0x11/0x20
[  385.641767]  ? ___ratelimit+0x3b4/0x672
[  385.645749]  ? trace_hardirqs_off_caller+0x310/0x310
[  385.650852]  ? trace_hardirqs_on+0x310/0x310
[  385.655283]  ? lock_downgrade+0x900/0x900
[  385.659440]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  385.664539]  ? ___ratelimit+0x3b9/0x672
[  385.668515]  ? idr_get_free+0xf70/0xf70
[  385.672487]  ? find_held_lock+0x36/0x1c0
[  385.676555]  oom_kill_process.cold.27+0x10/0x903
[  385.681321]  ? zap_class+0x640/0x640
[  385.685030]  ? check_preemption_disabled+0x48/0x280
[  385.690045]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.694966]  ? kasan_check_read+0x11/0x20
[  385.699111]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.704395]  ? oom_evaluate_task+0x540/0x540
[  385.708804]  ? find_held_lock+0x36/0x1c0
[  385.712869]  ? out_of_memory+0x974/0x1430
[  385.717013]  ? lock_downgrade+0x900/0x900
[  385.721159]  ? check_preemption_disabled+0x48/0x280
[  385.726174]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.731102]  ? kasan_check_read+0x11/0x20
[  385.735255]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.740526]  ? rcu_softirq_qs+0x20/0x20
[  385.744512]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.750149]  ? oom_evaluate_task+0x302/0x540
[  385.754563]  out_of_memory+0xa84/0x1430
[  385.758546]  ? oom_killer_disable+0x3a0/0x3a0
[  385.763039]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  385.767966]  ? __ww_mutex_check_waiters+0x160/0x160
[  385.772988]  __alloc_pages_slowpath+0x2354/0x2e10
[  385.777852]  ? warn_alloc+0x120/0x120
[  385.781659]  ? mark_held_locks+0x130/0x130
[  385.785910]  ? find_get_entry+0xaae/0x1120
[  385.790148]  ? filemap_map_pages+0x1a20/0x1a20
[  385.794729]  ? zap_class+0x640/0x640
[  385.798441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.803974]  ? check_preemption_disabled+0x48/0x280
[  385.808989]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.814530]  ? should_fail+0x22d/0xd01
[  385.818511]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.823611]  ? zap_class+0x640/0x640
[  385.827346]  ? __lock_is_held+0xb5/0x140
[  385.831414]  ? mark_held_locks+0x130/0x130
[  385.835647]  ? lock_release+0xa00/0xa00
[  385.839621]  ? perf_trace_sched_process_exec+0x860/0x860
[  385.845072]  ? xa_load+0x2ba/0x460
[  385.848610]  ? lock_downgrade+0x900/0x900
[  385.852761]  ? __might_sleep+0x95/0x190
[  385.856736]  __alloc_pages_nodemask+0xa80/0xde0
[  385.861413]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  385.866515]  ? __page_cache_alloc+0x191/0x5c0
[  385.871006]  ? xa_load+0x2e1/0x460
[  385.874544]  ? xa_clear_mark+0x40/0x40
[  385.878429]  ? zap_class+0x640/0x640
[  385.882146]  ? zap_class+0x640/0x640
[  385.885855]  ? zap_class+0x640/0x640
[  385.889570]  ? __do_page_cache_readahead+0x663/0x810
[  385.894679]  ? find_held_lock+0x36/0x1c0
[  385.898740]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  385.904285]  alloc_pages_current+0x173/0x350
[  385.908697]  __page_cache_alloc+0x38c/0x5c0
[  385.913133]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.918058]  ? kasan_check_read+0x11/0x20
[  385.922206]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.927485]  ? generic_perform_write+0x6a0/0x6a0
[  385.932251]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.937786]  ? check_preemption_disabled+0x48/0x280
[  385.942811]  filemap_fault+0x1595/0x25f0
[  385.946880]  ? __lock_page_or_retry+0xa00/0xa00
[  385.951549]  ? mark_held_locks+0x130/0x130
[  385.955793]  ? filemap_map_pages+0xd6b/0x1a20
[  385.960289]  ? lock_downgrade+0x900/0x900
[  385.964432]  ? check_preemption_disabled+0x48/0x280
[  385.969446]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.974372]  ? kasan_check_read+0x11/0x20
[  385.978533]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.983807]  ? rcu_softirq_qs+0x20/0x20
[  385.987793]  ? filemap_map_pages+0xd92/0x1a20
[  385.992305]  ? find_get_entries_tag+0x1400/0x1400
[  385.997141]  ? find_held_lock+0x36/0x1c0
[  386.001249]  ? lock_acquire+0x1ed/0x520
[  386.005228]  ? ext4_filemap_fault+0x7a/0xad
[  386.009566]  ? lock_release+0xa00/0xa00
[  386.013556]  ? perf_trace_sched_process_exec+0x860/0x860
[  386.019002]  ? print_usage_bug+0xc0/0xc0
[  386.023076]  ? down_read+0x8d/0x120
[  386.026697]  ? ext4_filemap_fault+0x7a/0xad
[  386.031027]  ? __down_interruptible+0x700/0x700
[  386.035692]  ? find_held_lock+0x36/0x1c0
[  386.039752]  ext4_filemap_fault+0x82/0xad
[  386.043904]  __do_fault+0x100/0x6b0
[  386.047527]  ? lock_downgrade+0x900/0x900
[  386.051677]  ? pmd_devmap_trans_unstable+0x220/0x220
[  386.056814]  ? kasan_check_read+0x11/0x20
[  386.060957]  ? do_raw_spin_unlock+0xa7/0x330
[  386.065392]  ? do_raw_spin_trylock+0x270/0x270
[  386.069991]  __handle_mm_fault+0x3ea0/0x5be0
[  386.074418]  ? perf_trace_lock+0x7a0/0x7a0
[  386.078654]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  386.083519]  ? __switch_to_asm+0x34/0x70
[  386.087573]  ? __switch_to_asm+0x34/0x70
[  386.091640]  ? zap_class+0x640/0x640
[  386.095437]  ? zap_class+0x640/0x640
[  386.099149]  ? __x64_sys_futex+0x53e/0x6a0
[  386.103387]  ? find_held_lock+0x36/0x1c0
[  386.107450]  ? handle_mm_fault+0x42a/0xc70
[  386.111680]  ? lock_downgrade+0x900/0x900
[  386.115824]  ? check_preemption_disabled+0x48/0x280
[  386.120942]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  386.125868]  ? kasan_check_read+0x11/0x20
[  386.130016]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.135287]  ? rcu_softirq_qs+0x20/0x20
[  386.139255]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.144359]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.149906]  ? check_preemption_disabled+0x48/0x280
[  386.154922]  handle_mm_fault+0x54f/0xc70
[  386.159000]  ? __handle_mm_fault+0x5be0/0x5be0
[  386.163580]  ? find_vma+0x34/0x190
[  386.167122]  __do_page_fault+0x5e8/0xe60
[  386.171180]  ? trace_hardirqs_off+0xb8/0x310
[  386.175602]  do_page_fault+0xf2/0x7e0
[  386.179400]  ? vmalloc_sync_all+0x30/0x30
[  386.183543]  ? error_entry+0x70/0xd0
[  386.187262]  ? trace_hardirqs_off_caller+0xbb/0x310
[  386.192275]  ? trace_hardirqs_on_caller+0xc0/0x310
[  386.197282]  ? syscall_return_slowpath+0x5e0/0x5e0
[  386.202216]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.207058]  ? trace_hardirqs_on_caller+0x310/0x310
[  386.212072]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  386.217519]  ? prepare_exit_to_usermode+0x291/0x3b0
[  386.222531]  ? page_fault+0x8/0x30
[  386.226070]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.230908]  ? page_fault+0x8/0x30
[  386.234529]  page_fault+0x1e/0x30
[  386.238078] RIP: 0033:0x404068
[  386.241282] Code: Bad RIP value.
[  386.244642] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  386.250000] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  386.257614] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  386.264876] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  386.272228] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  386.279495] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  386.286899] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  386.286903] warn_alloc_show_mem: 1 callbacks suppressed
[  386.286909] Mem-Info:
[  386.294264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  386.299631] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  386.299631]  active_file:13 inactive_file:13 isolated_file:0
[  386.299631]  unevictable:0 dirty:0 writeback:0 unstable:0
[  386.299631]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  386.299631]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  386.299631]  free:13747 free_pcp:348 free_cma:0
[  386.302001] Call Trace:
[  386.311374] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  386.344590]  <IRQ>
[  386.347157] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  386.375105]  dump_stack+0x244/0x39d
[  386.377228] lowmem_reserve[]: 0 2818 6321 6321
[  386.403443]  ? dump_stack_print_info.cold.1+0x20/0x20
[  386.407037] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  386.411618]  warn_alloc.cold.116+0xb7/0x1bd
[  386.416768] lowmem_reserve[]: 0 0 3503 3503
[  386.444257]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  386.448547] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  386.452865]  ? lock_downgrade+0x900/0x900
[  386.457672] lowmem_reserve[]: 0 0 0 0
[  386.486819]  ? trace_hardirqs_off+0xb8/0x310
[  386.490932] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  386.494726]  ? trace_hardirqs_off+0xb8/0x310
[  386.499118] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  386.512719]  __alloc_pages_slowpath+0x26e8/0x2e10
[  386.517095] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  386.532252]  ? warn_alloc+0x120/0x120
[  386.537049] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  386.552208]  ? print_usage_bug+0xc0/0xc0
[  386.555984] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  386.564807]  ? warn_alloc+0x120/0x120
[  386.568839] 4484 total pagecache pages
[  386.577402]  ? warn_alloc+0x120/0x120
[  386.581189] 0 pages in swap cache
[  386.585058]  ? print_usage_bug+0xc0/0xc0
[  386.588832] Swap cache stats: add 0, delete 0, find 0/0
[  386.592281]  ? kvm_clock_read+0x18/0x30
[  386.596313] Free swap  = 0kB
[  386.601668]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  386.605607] Total swap = 0kB
[  386.605614] 1965979 pages RAM
[  386.608618]  ? print_usage_bug+0xc0/0xc0
[  386.613605] 0 pages HighMem/MovableOnly
[  386.613612] 342854 pages reserved
[  386.616619]  ? __lock_acquire+0x62f/0x4c20
[  386.619696] 0 pages cma reserved
[  386.623767]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.627763] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  386.631153]  ? should_fail+0x22d/0xd01
[  386.635417] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  386.638725]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.644235] syz-fuzzer cpuset=/ mems_allowed=0
[  386.650804]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.679873]  ? __lock_acquire+0x62f/0x4c20
[  386.684115]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.689214]  ? __lock_acquire+0x62f/0x4c20
[  386.693444]  ? should_fail+0x22d/0xd01
[  386.697328]  ? rcu_irq_exit+0x1a2/0x390
[  386.701309]  ? mark_held_locks+0x130/0x130
[  386.705545]  ? mark_held_locks+0x130/0x130
[  386.709780]  ? mark_held_locks+0xc7/0x130
[  386.713923]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  386.718932]  ? zap_class+0x640/0x640
[  386.722643]  ? print_usage_bug+0xc0/0xc0
[  386.726711]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.732266]  ? check_preemption_disabled+0x48/0x280
[  386.737294]  ? __lock_is_held+0xb5/0x140
[  386.741379]  __alloc_pages_nodemask+0xa80/0xde0
[  386.746043]  ? zap_class+0x640/0x640
[  386.749758]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  386.754780]  ? find_held_lock+0x36/0x1c0
[  386.758846]  ? ____cache_alloc_node+0x1c7/0x1e0
[  386.763516]  ? lock_downgrade+0x900/0x900
[  386.767754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.773294]  cache_grow_begin+0xa5/0x8c0
[  386.777351]  ? do_raw_spin_unlock+0xa7/0x330
[  386.781792]  fallback_alloc+0x204/0x2e0
[  386.785768]  ____cache_alloc_node+0x1c7/0x1e0
[  386.790266]  kmem_cache_alloc_node+0xe3/0x730
[  386.794757]  ? ipv6_get_ifaddr+0x42e/0x620
[  386.798999]  __alloc_skb+0x119/0x770
[  386.802713]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.807990]  ? netdev_alloc_frag+0x1f0/0x1f0
[  386.812390]  ? lock_downgrade+0x900/0x900
[  386.816541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.822075]  ? refcount_sub_and_test_checked+0x203/0x310
[  386.827641]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  386.833087]  ? addrconf_rs_timer+0x690/0x690
[  386.837503]  ndisc_alloc_skb+0x144/0x340
[  386.841571]  ndisc_send_rs+0x331/0x6e0
[  386.845458]  addrconf_rs_timer+0x314/0x690
[  386.849691]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.853935]  call_timer_fn+0x272/0x920
[  386.857819]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.862055]  ? process_timeout+0x40/0x40
[  386.866121]  ? __run_timers+0x7da/0xc70
[  386.870099]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.874590]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.879079]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.883396]  ? lockdep_hardirqs_on+0x296/0x5b0
[  386.887976]  ? trace_hardirqs_on+0xbd/0x310
[  386.892293]  ? kasan_check_read+0x11/0x20
[  386.896828]  ? __run_timers+0x7da/0xc70
[  386.900803]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.905911]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.910157]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  386.914390]  __run_timers+0x7e5/0xc70
[  386.918196]  ? timer_fixup_init+0x70/0x70
[  386.922362]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  386.927376]  ? zap_class+0x640/0x640
[  386.931093]  ? enqueue_hrtimer+0x1a5/0x560
[  386.935327]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  386.940661]  ? find_held_lock+0x36/0x1c0
[  386.944725]  ? zap_class+0x640/0x640
[  386.948442]  ? pvclock_read_flags+0x160/0x160
[  386.952937]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.958579]  ? check_preemption_disabled+0x48/0x280
[  386.963605]  ? __lock_is_held+0xb5/0x140
[  386.967662]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.973213]  ? check_preemption_disabled+0x48/0x280
[  386.978232]  run_timer_softirq+0x52/0xb0
[  386.982289]  ? rcu_read_lock_sched_held+0x14f/0x180
[  386.987313]  __do_softirq+0x308/0xb7e
[  386.991125]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  386.995617]  ? lock_downgrade+0x900/0x900
[  386.999767]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  387.004897]  ? pvclock_read_flags+0x160/0x160
[  387.009388]  ? lapic_next_event+0x5a/0x90
[  387.013532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.019066]  ? kvm_clock_read+0x18/0x30
[  387.023033]  ? kvm_sched_clock_read+0x9/0x20
[  387.027434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.032982]  ? check_preemption_disabled+0x48/0x280
[  387.037999]  irq_exit+0x17f/0x1c0
[  387.041447]  smp_apic_timer_interrupt+0x1cb/0x760
[  387.046286]  ? smp_reschedule_interrupt+0x109/0x650
[  387.051301]  ? smp_call_function_single_interrupt+0x650/0x650
[  387.057205]  ? interrupt_entry+0xb5/0xc0
[  387.061761]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.066772]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.071781]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.076616]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.081635]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.086642]  ? task_prio+0x50/0x50
[  387.090184]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.095718]  ? check_preemption_disabled+0x48/0x280
[  387.100736]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.105595]  apic_timer_interrupt+0xf/0x20
[  387.109817]  </IRQ>
[  387.112071] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  387.116996] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  387.135885] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  387.143586] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  387.150853] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  387.158205] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  387.165466] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  387.172770] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  387.180071]  skb_clone+0x1bb/0x500
[  387.183610]  ? finish_task_switch+0x2f4/0x910
[  387.188113]  ? skb_split+0x11e0/0x11e0
[  387.192003]  ? preempt_notifier_register+0x200/0x200
[  387.197098]  ? __switch_to_asm+0x34/0x70
[  387.201163]  ? __switch_to_asm+0x34/0x70
[  387.205215]  ? __switch_to_asm+0x40/0x70
[  387.209269]  ? __switch_to_asm+0x34/0x70
[  387.213321]  ? __switch_to_asm+0x40/0x70
[  387.217376]  ? __switch_to_asm+0x34/0x70
[  387.221430]  ? __switch_to_asm+0x40/0x70
[  387.225486]  ? __switch_to_asm+0x34/0x70
[  387.229539]  ? __switch_to_asm+0x34/0x70
[  387.233605]  ? __switch_to_asm+0x40/0x70
[  387.237655]  ? __switch_to_asm+0x34/0x70
[  387.241733]  bpf_clone_redirect+0xb9/0x490
[  387.245962]  ? __schedule+0x8d7/0x21d0
[  387.249851]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  387.254863]  ? __sched_text_start+0x8/0x8
[  387.259006]  ? retint_kernel+0x2d/0x2d
[  387.262898]  ? find_held_lock+0x36/0x1c0
[  387.266961]  ? lock_acquire+0x1ed/0x520
[  387.270930]  ? bpf_test_run+0x3cb/0x780
[  387.274900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.280432]  ? check_preemption_disabled+0x48/0x280
[  387.285453]  ? kasan_check_read+0x11/0x20
[  387.289601]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.294873]  ? rcu_softirq_qs+0x20/0x20
[  387.298857]  ? preempt_schedule+0x4d/0x60
[  387.303000]  ? ___preempt_schedule+0x16/0x18
[  387.307410]  ? bpf_test_run+0x25d/0x780
[  387.311389]  ? netlink_diag_dump+0x2a0/0x2a0
[  387.315801]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.321424]  ? bpf_test_init.isra.10+0x70/0x100
[  387.326094]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  387.330865]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  387.335704]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  387.341236]  ? fput+0x130/0x1a0
[  387.344514]  ? __bpf_prog_get+0x9b/0x290
[  387.348614]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  387.353450]  ? bpf_prog_test_run+0x130/0x1a0
[  387.357861]  ? __x64_sys_bpf+0x3d8/0x520
[  387.361922]  ? bpf_prog_get+0x20/0x20
[  387.365738]  ? do_syscall_64+0x1b9/0x820
[  387.369791]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  387.375162]  ? syscall_return_slowpath+0x5e0/0x5e0
[  387.380086]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.384933]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.389949]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  387.394964]  ? prepare_exit_to_usermode+0x291/0x3b0
[  387.399980]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.404843]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  387.410219] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  387.410284] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  387.417231] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  387.417236] Call Trace:
[  387.417242]  <IRQ>
[  387.417259]  dump_stack+0x244/0x39d
[  387.417277]  ? dump_stack_print_info.cold.1+0x20/0x20
[  387.423877] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  387.433095]  warn_alloc.cold.116+0xb7/0x1bd
[  387.435650] syz-executor2 cpuset=syz2 mems_allowed=0
[  387.437791]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  387.471462]  ? lock_downgrade+0x900/0x900
[  387.475614]  ? trace_hardirqs_off+0xb8/0x310
[  387.480024]  ? trace_hardirqs_off+0xb8/0x310
[  387.484431]  __alloc_pages_slowpath+0x26e8/0x2e10
[  387.489299]  ? warn_alloc+0x120/0x120
[  387.493111]  ? print_usage_bug+0xc0/0xc0
[  387.497199]  ? warn_alloc+0x120/0x120
[  387.501009]  ? warn_alloc+0x120/0x120
[  387.504838]  ? print_usage_bug+0xc0/0xc0
[  387.508898]  ? print_usage_bug+0xc0/0xc0
[  387.513041]  ? __lock_acquire+0x62f/0x4c20
[  387.517279]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.522815]  ? should_fail+0x22d/0xd01
[  387.526705]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  387.531816]  ? __lock_acquire+0x62f/0x4c20
[  387.536050]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  387.541151]  ? __lock_acquire+0x62f/0x4c20
[  387.545386]  ? should_fail+0x22d/0xd01
[  387.549268]  ? find_held_lock+0x36/0x1c0
[  387.553344]  ? mark_held_locks+0x130/0x130
[  387.557579]  ? mark_held_locks+0x130/0x130
[  387.561806]  ? zap_class+0x640/0x640
[  387.565519]  ? zap_class+0x640/0x640
[  387.569231]  ? print_usage_bug+0xc0/0xc0
[  387.573283]  ? do_raw_spin_unlock+0xa7/0x330
[  387.577694]  ? zap_class+0x640/0x640
[  387.581402]  ? print_usage_bug+0xc0/0xc0
[  387.585457]  ? wq_watchdog_touch+0x9c/0xfe
[  387.589691]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.595229]  ? check_preemption_disabled+0x48/0x280
[  387.600253]  ? __lock_is_held+0xb5/0x140
[  387.604318]  __alloc_pages_nodemask+0xa80/0xde0
[  387.608992]  ? zap_class+0x640/0x640
[  387.612826]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  387.617846]  ? find_held_lock+0x36/0x1c0
[  387.621910]  ? ____cache_alloc_node+0x1c7/0x1e0
[  387.626578]  ? lock_downgrade+0x900/0x900
[  387.630727]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.636537]  cache_grow_begin+0xa5/0x8c0
[  387.640593]  ? do_raw_spin_unlock+0xa7/0x330
[  387.645002]  fallback_alloc+0x204/0x2e0
[  387.648980]  ____cache_alloc_node+0x1c7/0x1e0
[  387.653482]  kmem_cache_alloc_node+0xe3/0x730
[  387.657972]  ? ipv6_get_ifaddr+0x42e/0x620
[  387.662212]  __alloc_skb+0x119/0x770
[  387.665920]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.671198]  ? netdev_alloc_frag+0x1f0/0x1f0
[  387.675619]  ? lock_downgrade+0x900/0x900
[  387.679767]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.685297]  ? refcount_sub_and_test_checked+0x203/0x310
[  387.690748]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  387.696192]  ? addrconf_rs_timer+0x690/0x690
[  387.700606]  ndisc_alloc_skb+0x144/0x340
[  387.704772]  ndisc_send_rs+0x331/0x6e0
[  387.708922]  addrconf_rs_timer+0x314/0x690
[  387.713164]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.717406]  call_timer_fn+0x272/0x920
[  387.721307]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.725539]  ? process_timeout+0x40/0x40
[  387.729603]  ? mark_held_locks+0xc7/0x130
[  387.733752]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.738328]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.742835]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.747064]  ? lockdep_hardirqs_on+0x296/0x5b0
[  387.751652]  ? trace_hardirqs_on+0xbd/0x310
[  387.755971]  ? kasan_check_read+0x11/0x20
[  387.760111]  ? __run_timers+0x7da/0xc70
[  387.764096]  ? trace_hardirqs_off_caller+0x310/0x310
[  387.769202]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.773436]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.777664]  __run_timers+0x7e5/0xc70
[  387.781485]  ? timer_fixup_init+0x70/0x70
[  387.785631]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  387.790644]  ? zap_class+0x640/0x640
[  387.794361]  ? print_usage_bug+0xc0/0xc0
[  387.798419]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  387.803609]  ? find_held_lock+0x36/0x1c0
[  387.807701]  ? zap_class+0x640/0x640
[  387.811416]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.816951]  ? check_preemption_disabled+0x48/0x280
[  387.821974]  ? __lock_is_held+0xb5/0x140
[  387.826030]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.831576]  ? check_preemption_disabled+0x48/0x280
[  387.836591]  run_timer_softirq+0x52/0xb0
[  387.840752]  ? rcu_read_lock_sched_held+0x14f/0x180
[  387.845762]  __do_softirq+0x308/0xb7e
[  387.849572]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  387.854058]  ? lock_downgrade+0x900/0x900
[  387.858227]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  387.863359]  ? pvclock_read_flags+0x160/0x160
[  387.867856]  ? lapic_next_event+0x5a/0x90
[  387.872001]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.877537]  ? kvm_clock_read+0x18/0x30
[  387.881537]  ? kvm_sched_clock_read+0x9/0x20
[  387.885946]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.891479]  ? check_preemption_disabled+0x48/0x280
[  387.896497]  irq_exit+0x17f/0x1c0
[  387.899945]  smp_apic_timer_interrupt+0x1cb/0x760
[  387.904805]  ? smp_call_function_single_interrupt+0x650/0x650
[  387.910683]  ? interrupt_entry+0xb5/0xc0
[  387.914744]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.919755]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.924769]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.929608]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.934641]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.939787]  ? task_prio+0x50/0x50
[  387.943325]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.948859]  ? check_preemption_disabled+0x48/0x280
[  387.953876]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.958724]  apic_timer_interrupt+0xf/0x20
[  387.962950]  </IRQ>
[  387.965189] RIP: 0010:dump_stack+0x358/0x39d
[  387.969719] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  387.988614] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  387.996317] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  388.003686] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  388.010948] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  388.018209] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  388.025476] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  388.032753]  ? dump_stack+0x34f/0x39d
[  388.036566]  ? dump_stack_print_info.cold.1+0x20/0x20
[  388.041755]  ? mark_held_locks+0x130/0x130
[  388.046005]  ? mark_held_locks+0x130/0x130
[  388.050243]  dump_header+0x27b/0xf72
[  388.053963]  ? pagefault_out_of_memory+0x197/0x197
[  388.058896]  ? __lock_acquire+0x62f/0x4c20
[  388.063133]  ? percpu_ref_get_many+0x240/0x240
[  388.067719]  ? print_usage_bug+0xc0/0xc0
[  388.071785]  ? zap_class+0x640/0x640
[  388.075499]  ? print_usage_bug+0xc0/0xc0
[  388.079552]  ? print_usage_bug+0xc0/0xc0
[  388.083612]  ? zap_class+0x640/0x640
[  388.087325]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.092861]  ? find_held_lock+0x36/0x1c0
[  388.096928]  ? mark_held_locks+0xc7/0x130
[  388.101088]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  388.106188]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  388.111288]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  388.115868]  ? trace_hardirqs_on+0xbd/0x310
[  388.120183]  ? kasan_check_read+0x11/0x20
[  388.124342]  ? ___ratelimit+0x3b4/0x672
[  388.128317]  ? trace_hardirqs_off_caller+0x310/0x310
[  388.133416]  ? trace_hardirqs_on+0x310/0x310
[  388.137826]  ? lock_downgrade+0x900/0x900
[  388.141973]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  388.147074]  ? ___ratelimit+0x3b9/0x672
[  388.151135]  ? idr_get_free+0xf70/0xf70
[  388.155124]  ? find_held_lock+0x36/0x1c0
[  388.159191]  oom_kill_process.cold.27+0x10/0x903
[  388.163944]  ? zap_class+0x640/0x640
[  388.167660]  ? check_preemption_disabled+0x48/0x280
[  388.172674]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  388.177601]  ? kasan_check_read+0x11/0x20
[  388.181754]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.187030]  ? oom_evaluate_task+0x540/0x540
[  388.191527]  ? find_held_lock+0x36/0x1c0
[  388.195593]  ? out_of_memory+0x974/0x1430
[  388.199736]  ? lock_downgrade+0x900/0x900
[  388.203877]  ? check_preemption_disabled+0x48/0x280
[  388.208892]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  388.213812]  ? kasan_check_read+0x11/0x20
[  388.218048]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.223429]  ? rcu_softirq_qs+0x20/0x20
[  388.227408]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.232942]  ? oom_evaluate_task+0x302/0x540
[  388.237350]  out_of_memory+0xa84/0x1430
[  388.241347]  ? oom_killer_disable+0x3a0/0x3a0
[  388.245836]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  388.250765]  ? __ww_mutex_check_waiters+0x160/0x160
[  388.255795]  __alloc_pages_slowpath+0x2354/0x2e10
[  388.260663]  ? warn_alloc+0x120/0x120
[  388.264457]  ? mark_held_locks+0x130/0x130
[  388.268702]  ? find_get_entry+0xaae/0x1120
[  388.272949]  ? filemap_map_pages+0x1a20/0x1a20
[  388.277534]  ? zap_class+0x640/0x640
[  388.281249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.286781]  ? check_preemption_disabled+0x48/0x280
[  388.291806]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.297340]  ? should_fail+0x22d/0xd01
[  388.301224]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.306327]  ? zap_class+0x640/0x640
[  388.310147]  ? __lock_is_held+0xb5/0x140
[  388.314225]  ? mark_held_locks+0x130/0x130
[  388.318460]  ? lock_release+0xa00/0xa00
[  388.322442]  ? perf_trace_sched_process_exec+0x860/0x860
[  388.327887]  ? xa_load+0x2ba/0x460
[  388.331420]  ? lock_downgrade+0x900/0x900
[  388.335655]  ? __might_sleep+0x95/0x190
[  388.339628]  __alloc_pages_nodemask+0xa80/0xde0
[  388.344299]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  388.349311]  ? __page_cache_alloc+0x191/0x5c0
[  388.353798]  ? xa_load+0x2e1/0x460
[  388.357332]  ? xa_clear_mark+0x40/0x40
[  388.361217]  ? zap_class+0x640/0x640
[  388.364938]  ? zap_class+0x640/0x640
[  388.368643]  ? zap_class+0x640/0x640
[  388.372348]  ? __do_page_cache_readahead+0x663/0x810
[  388.377449]  ? find_held_lock+0x36/0x1c0
[  388.381507]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  388.387052]  alloc_pages_current+0x173/0x350
[  388.391564]  __page_cache_alloc+0x38c/0x5c0
[  388.395878]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  388.400800]  ? kasan_check_read+0x11/0x20
[  388.404944]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.410238]  ? generic_perform_write+0x6a0/0x6a0
[  388.414991]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.420529]  ? check_preemption_disabled+0x48/0x280
[  388.425566]  filemap_fault+0x1595/0x25f0
[  388.429636]  ? __lock_page_or_retry+0xa00/0xa00
[  388.434304]  ? mark_held_locks+0x130/0x130
[  388.438544]  ? filemap_map_pages+0xd6b/0x1a20
[  388.443047]  ? lock_downgrade+0x900/0x900
[  388.447194]  ? check_preemption_disabled+0x48/0x280
[  388.452224]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  388.457153]  ? kasan_check_read+0x11/0x20
[  388.461295]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.466587]  ? rcu_softirq_qs+0x20/0x20
[  388.470570]  ? filemap_map_pages+0xd92/0x1a20
[  388.475080]  ? find_get_entries_tag+0x1400/0x1400
[  388.479914]  ? find_held_lock+0x36/0x1c0
[  388.483988]  ? lock_acquire+0x1ed/0x520
[  388.487990]  ? ext4_filemap_fault+0x7a/0xad
[  388.492320]  ? lock_release+0xa00/0xa00
[  388.496287]  ? perf_trace_sched_process_exec+0x860/0x860
[  388.501734]  ? print_usage_bug+0xc0/0xc0
[  388.505805]  ? down_read+0x8d/0x120
[  388.509427]  ? ext4_filemap_fault+0x7a/0xad
[  388.513745]  ? __down_interruptible+0x700/0x700
[  388.518452]  ? find_held_lock+0x36/0x1c0
[  388.522526]  ext4_filemap_fault+0x82/0xad
[  388.526671]  __do_fault+0x100/0x6b0
[  388.530299]  ? lock_downgrade+0x900/0x900
[  388.534443]  ? pmd_devmap_trans_unstable+0x220/0x220
[  388.539565]  ? kasan_check_read+0x11/0x20
[  388.543739]  ? do_raw_spin_unlock+0xa7/0x330
[  388.548269]  ? do_raw_spin_trylock+0x270/0x270
[  388.552867]  __handle_mm_fault+0x3ea0/0x5be0
[  388.557270]  ? perf_trace_lock+0x7a0/0x7a0
[  388.561506]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  388.566351]  ? __switch_to_asm+0x34/0x70
[  388.570495]  ? __switch_to_asm+0x34/0x70
[  388.574579]  ? zap_class+0x640/0x640
[  388.578301]  ? zap_class+0x640/0x640
[  388.582017]  ? __x64_sys_futex+0x53e/0x6a0
[  388.586272]  ? find_held_lock+0x36/0x1c0
[  388.590340]  ? handle_mm_fault+0x42a/0xc70
[  388.594574]  ? lock_downgrade+0x900/0x900
[  388.598715]  ? check_preemption_disabled+0x48/0x280
[  388.603731]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  388.608658]  ? kasan_check_read+0x11/0x20
[  388.612804]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.618250]  ? rcu_softirq_qs+0x20/0x20
[  388.622219]  ? trace_hardirqs_off_caller+0x310/0x310
[  388.627321]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.632857]  ? check_preemption_disabled+0x48/0x280
[  388.637874]  handle_mm_fault+0x54f/0xc70
[  388.641933]  ? __handle_mm_fault+0x5be0/0x5be0
[  388.646515]  ? find_vma+0x34/0x190
[  388.650062]  __do_page_fault+0x5e8/0xe60
[  388.654118]  ? trace_hardirqs_off+0xb8/0x310
[  388.658537]  do_page_fault+0xf2/0x7e0
[  388.662338]  ? vmalloc_sync_all+0x30/0x30
[  388.666488]  ? error_entry+0x70/0xd0
[  388.670198]  ? trace_hardirqs_off_caller+0xbb/0x310
[  388.675299]  ? trace_hardirqs_on_caller+0xc0/0x310
[  388.680253]  ? syscall_return_slowpath+0x5e0/0x5e0
[  388.685177]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.690021]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.695047]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  388.700500]  ? prepare_exit_to_usermode+0x291/0x3b0
[  388.705531]  ? page_fault+0x8/0x30
[  388.709107]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.713958]  ? page_fault+0x8/0x30
[  388.717494]  page_fault+0x1e/0x30
[  388.720937] RIP: 0033:0x404068
[  388.724137] Code: Bad RIP value.
[  388.727583] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  388.732939] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  388.740205] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  388.747470] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  388.754758] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  388.762029] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  388.769340] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  388.769344] warn_alloc_show_mem: 1 callbacks suppressed
[  388.769351] Mem-Info:
[  388.776701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  388.782069] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  388.782069]  active_file:13 inactive_file:13 isolated_file:0
[  388.782069]  unevictable:0 dirty:0 writeback:0 unstable:0
[  388.782069]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  388.782069]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  388.782069]  free:13747 free_pcp:348 free_cma:0
[  388.784432] Call Trace:
[  388.793805] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  388.826907]  <IRQ>
[  388.829472] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  388.857409]  dump_stack+0x244/0x39d
[  388.859527] lowmem_reserve[]: 0 2818 6321 6321
[  388.885638]  ? dump_stack_print_info.cold.1+0x20/0x20
[  388.889266] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  388.894209]  warn_alloc.cold.116+0xb7/0x1bd
[  388.899378] lowmem_reserve[]: 0 0 3503 3503
[  388.926866]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  388.931159] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  388.935475]  ? lock_downgrade+0x900/0x900
[  388.940282] lowmem_reserve[]: 0 0 0 0
[  388.969431]  ? trace_hardirqs_off+0xb8/0x310
[  388.973549] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  388.977345]  ? trace_hardirqs_off+0xb8/0x310
[  388.981721] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  388.995239]  __alloc_pages_slowpath+0x26e8/0x2e10
[  388.999615] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  389.014562]  ? warn_alloc+0x120/0x120
[  389.019366] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  389.034520]  ? warn_alloc+0x120/0x120
[  389.038382] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  389.047222]  ? zap_class+0x640/0x640
[  389.050995] 4484 total pagecache pages
[  389.059566]  ? warn_alloc+0x120/0x120
[  389.063517] 0 pages in swap cache
[  389.067400]  ? print_usage_bug+0xc0/0xc0
[  389.071170] Swap cache stats: add 0, delete 0, find 0/0
[  389.074606]  ? idle_cpu+0x1d0/0x1d0
[  389.078640] Free swap  = 0kB
[  389.083995]  ? kvm_sched_clock_read+0x9/0x20
[  389.087588] Total swap = 0kB
[  389.090594]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  389.094991] 1965979 pages RAM
[  389.098006]  ? print_usage_bug+0xc0/0xc0
[  389.103003] 0 pages HighMem/MovableOnly
[  389.106096]  ? __lock_is_held+0xb5/0x140
[  389.110126] 342854 pages reserved
[  389.114088]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.118117] 0 pages cma reserved
[  389.118206] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  389.121583]  ? should_fail+0x22d/0xd01
[  389.127213] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  389.130447]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.136934] syz-fuzzer cpuset=/ mems_allowed=0
[  389.140808]  ? __lock_acquire+0x62f/0x4c20
[  389.164888]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.170004]  ? __lock_acquire+0x62f/0x4c20
[  389.174232]  ? should_fail+0x22d/0xd01
[  389.178130]  ? mark_held_locks+0x130/0x130
[  389.182363]  ? mark_held_locks+0x130/0x130
[  389.186594]  ? try_to_wake_up+0x11c/0x1490
[  389.190827]  ? lock_downgrade+0x900/0x900
[  389.194984]  ? zap_class+0x640/0x640
[  389.198697]  ? print_usage_bug+0xc0/0xc0
[  389.202761]  ? trace_hardirqs_off+0xb8/0x310
[  389.207168]  ? kasan_check_read+0x11/0x20
[  389.211315]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.216851]  ? check_preemption_disabled+0x48/0x280
[  389.221895]  ? __lock_is_held+0xb5/0x140
[  389.225974]  __alloc_pages_nodemask+0xa80/0xde0
[  389.230642]  ? zap_class+0x640/0x640
[  389.234371]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  389.239390]  ? find_held_lock+0x36/0x1c0
[  389.243456]  ? ____cache_alloc_node+0x1c7/0x1e0
[  389.248140]  ? lock_downgrade+0x900/0x900
[  389.252290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.257928]  cache_grow_begin+0xa5/0x8c0
[  389.261991]  ? do_raw_spin_unlock+0xa7/0x330
[  389.266406]  fallback_alloc+0x204/0x2e0
[  389.270395]  ____cache_alloc_node+0x1c7/0x1e0
[  389.274891]  kmem_cache_alloc_node+0xe3/0x730
[  389.279394]  ? ipv6_get_ifaddr+0x42e/0x620
[  389.283636]  __alloc_skb+0x119/0x770
[  389.287344]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.292622]  ? netdev_alloc_frag+0x1f0/0x1f0
[  389.297113]  ? lock_downgrade+0x900/0x900
[  389.301262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.306791]  ? refcount_sub_and_test_checked+0x203/0x310
[  389.312239]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  389.317703]  ? addrconf_rs_timer+0x690/0x690
[  389.322118]  ndisc_alloc_skb+0x144/0x340
[  389.326183]  ndisc_send_rs+0x331/0x6e0
[  389.330087]  addrconf_rs_timer+0x314/0x690
[  389.334321]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.338590]  call_timer_fn+0x272/0x920
[  389.342475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.346711]  ? process_timeout+0x40/0x40
[  389.350773]  ? __run_timers+0x7da/0xc70
[  389.354756]  ? _raw_spin_unlock_irq+0x27/0x80
[  389.359243]  ? _raw_spin_unlock_irq+0x27/0x80
[  389.363734]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.367969]  ? lockdep_hardirqs_on+0x296/0x5b0
[  389.372570]  ? trace_hardirqs_on+0xbd/0x310
[  389.376886]  ? kasan_check_read+0x11/0x20
[  389.381032]  ? __run_timers+0x7da/0xc70
[  389.385006]  ? trace_hardirqs_off_caller+0x310/0x310
[  389.390108]  ? __queue_work+0x1440/0x1440
[  389.394256]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.398483]  __run_timers+0x7e5/0xc70
[  389.402293]  ? timer_fixup_init+0x70/0x70
[  389.406533]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  389.411545]  ? zap_class+0x640/0x640
[  389.415260]  ? enqueue_hrtimer+0x1a5/0x560
[  389.419499]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  389.424780]  ? find_held_lock+0x36/0x1c0
[  389.428845]  ? zap_class+0x640/0x640
[  389.432562]  ? pvclock_read_flags+0x160/0x160
[  389.437060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.442599]  ? check_preemption_disabled+0x48/0x280
[  389.447640]  ? __lock_is_held+0xb5/0x140
[  389.451696]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.457233]  ? check_preemption_disabled+0x48/0x280
[  389.462253]  run_timer_softirq+0x52/0xb0
[  389.466312]  ? rcu_read_lock_sched_held+0x14f/0x180
[  389.471324]  __do_softirq+0x308/0xb7e
[  389.475131]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  389.479621]  ? lock_downgrade+0x900/0x900
[  389.483772]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  389.488991]  ? pvclock_read_flags+0x160/0x160
[  389.493486]  ? lapic_next_event+0x5a/0x90
[  389.497635]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.503172]  ? kvm_clock_read+0x18/0x30
[  389.507139]  ? kvm_sched_clock_read+0x9/0x20
[  389.511577]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.517113]  ? check_preemption_disabled+0x48/0x280
[  389.522350]  irq_exit+0x17f/0x1c0
[  389.525843]  smp_apic_timer_interrupt+0x1cb/0x760
[  389.530695]  ? smp_reschedule_interrupt+0x109/0x650
[  389.535717]  ? smp_call_function_single_interrupt+0x650/0x650
[  389.541597]  ? interrupt_entry+0xb5/0xc0
[  389.545655]  ? trace_hardirqs_off_caller+0xbb/0x310
[  389.550663]  ? trace_hardirqs_off_caller+0xbb/0x310
[  389.555678]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.560526]  ? trace_hardirqs_on_caller+0x310/0x310
[  389.565549]  ? trace_hardirqs_on_caller+0x310/0x310
[  389.570564]  ? task_prio+0x50/0x50
[  389.574109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.579643]  ? check_preemption_disabled+0x48/0x280
[  389.584658]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.589502]  apic_timer_interrupt+0xf/0x20
[  389.593811]  </IRQ>
[  389.596046] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  389.600971] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  389.619870] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  389.627657] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  389.634923] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  389.642198] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  389.649460] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  389.656727] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  389.664034]  skb_clone+0x1bb/0x500
[  389.667573]  ? finish_task_switch+0x2f4/0x910
[  389.672075]  ? skb_split+0x11e0/0x11e0
[  389.675973]  ? preempt_notifier_register+0x200/0x200
[  389.681089]  ? __switch_to_asm+0x34/0x70
[  389.685144]  ? __switch_to_asm+0x34/0x70
[  389.689198]  ? __switch_to_asm+0x40/0x70
[  389.693250]  ? __switch_to_asm+0x34/0x70
[  389.697316]  ? __switch_to_asm+0x40/0x70
[  389.701371]  ? __switch_to_asm+0x34/0x70
[  389.705536]  ? __switch_to_asm+0x40/0x70
[  389.709598]  ? __switch_to_asm+0x34/0x70
[  389.713652]  ? __switch_to_asm+0x34/0x70
[  389.717720]  ? __switch_to_asm+0x40/0x70
[  389.721771]  ? __switch_to_asm+0x34/0x70
[  389.725846]  bpf_clone_redirect+0xb9/0x490
[  389.730087]  ? __schedule+0x8d7/0x21d0
[  389.733974]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  389.738994]  ? __sched_text_start+0x8/0x8
[  389.743137]  ? retint_kernel+0x2d/0x2d
[  389.747055]  ? find_held_lock+0x36/0x1c0
[  389.751124]  ? lock_acquire+0x1ed/0x520
[  389.755098]  ? bpf_test_run+0x3cb/0x780
[  389.759089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.764624]  ? check_preemption_disabled+0x48/0x280
[  389.769641]  ? kasan_check_read+0x11/0x20
[  389.773789]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.779064]  ? rcu_softirq_qs+0x20/0x20
[  389.783035]  ? preempt_schedule+0x4d/0x60
[  389.787199]  ? ___preempt_schedule+0x16/0x18
[  389.791611]  ? bpf_test_run+0x25d/0x780
[  389.795593]  ? netlink_diag_dump+0x2a0/0x2a0
[  389.800002]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.805542]  ? bpf_test_init.isra.10+0x70/0x100
[  389.810208]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  389.814971]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  389.819808]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  389.825340]  ? fput+0x130/0x1a0
[  389.828627]  ? __bpf_prog_get+0x9b/0x290
[  389.832786]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  389.837636]  ? bpf_prog_test_run+0x130/0x1a0
[  389.842041]  ? __x64_sys_bpf+0x3d8/0x520
[  389.846101]  ? bpf_prog_get+0x20/0x20
[  389.849938]  ? do_syscall_64+0x1b9/0x820
[  389.853997]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  389.859355]  ? syscall_return_slowpath+0x5e0/0x5e0
[  389.864283]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.869126]  ? trace_hardirqs_on_caller+0x310/0x310
[  389.874143]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  389.879161]  ? prepare_exit_to_usermode+0x291/0x3b0
[  389.884179]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.889024]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  389.894398] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  389.894470] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  389.901404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  389.901409] Call Trace:
[  389.901415]  <IRQ>
[  389.901430]  dump_stack+0x244/0x39d
[  389.901448]  ? dump_stack_print_info.cold.1+0x20/0x20
[  389.908012] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  389.917297]  warn_alloc.cold.116+0xb7/0x1bd
[  389.919843] syz-executor2 cpuset=syz2 mems_allowed=0
[  389.921981]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  389.955455]  ? lock_downgrade+0x900/0x900
[  389.959606]  ? trace_hardirqs_off+0xb8/0x310
[  389.964012]  ? trace_hardirqs_off+0xb8/0x310
[  389.968438]  __alloc_pages_slowpath+0x26e8/0x2e10
[  389.973298]  ? warn_alloc+0x120/0x120
[  389.977098]  ? __lock_acquire+0x62f/0x4c20
[  389.981343]  ? warn_alloc+0x120/0x120
[  389.985142]  ? warn_alloc+0x120/0x120
[  389.988938]  ? print_usage_bug+0xc0/0xc0
[  389.993033]  ? print_usage_bug+0xc0/0xc0
[  389.997103]  ? trace_hardirqs_off+0xb8/0x310
[  390.001512]  ? trace_hardirqs_on+0x310/0x310
[  390.005919]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.011471]  ? should_fail+0x22d/0xd01
[  390.015467]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.020651]  ? __lock_acquire+0x62f/0x4c20
[  390.024882]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.029982]  ? __lock_acquire+0x62f/0x4c20
[  390.034211]  ? should_fail+0x22d/0xd01
[  390.038191]  ? mark_held_locks+0x130/0x130
[  390.042430]  ? mark_held_locks+0x130/0x130
[  390.046670]  ? zap_class+0x640/0x640
[  390.050378]  ? print_usage_bug+0xc0/0xc0
[  390.054433]  ? __lock_acquire+0x62f/0x4c20
[  390.058662]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.064279]  ? check_preemption_disabled+0x48/0x280
[  390.069385]  ? __lock_is_held+0xb5/0x140
[  390.073450]  __alloc_pages_nodemask+0xa80/0xde0
[  390.078114]  ? zap_class+0x640/0x640
[  390.081823]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  390.086840]  ? find_held_lock+0x36/0x1c0
[  390.090910]  ? ____cache_alloc_node+0x1c7/0x1e0
[  390.095680]  ? lock_downgrade+0x900/0x900
[  390.099837]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.105385]  cache_grow_begin+0xa5/0x8c0
[  390.109438]  ? do_raw_spin_unlock+0xa7/0x330
[  390.113861]  fallback_alloc+0x204/0x2e0
[  390.117841]  ____cache_alloc_node+0x1c7/0x1e0
[  390.122333]  kmem_cache_alloc_node+0xe3/0x730
[  390.126821]  ? ipv6_get_ifaddr+0x42e/0x620
[  390.131059]  __alloc_skb+0x119/0x770
[  390.134761]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.140038]  ? netdev_alloc_frag+0x1f0/0x1f0
[  390.144441]  ? lock_downgrade+0x900/0x900
[  390.148588]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.154145]  ? refcount_sub_and_test_checked+0x203/0x310
[  390.159598]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  390.165044]  ? addrconf_rs_timer+0x690/0x690
[  390.169456]  ndisc_alloc_skb+0x144/0x340
[  390.173521]  ndisc_send_rs+0x331/0x6e0
[  390.177407]  addrconf_rs_timer+0x314/0x690
[  390.181642]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.185888]  call_timer_fn+0x272/0x920
[  390.189772]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.194006]  ? process_timeout+0x40/0x40
[  390.198085]  ? mark_held_locks+0xc7/0x130
[  390.202233]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.206721]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.211208]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.215440]  ? lockdep_hardirqs_on+0x296/0x5b0
[  390.220022]  ? trace_hardirqs_on+0xbd/0x310
[  390.224336]  ? kasan_check_read+0x11/0x20
[  390.228473]  ? __run_timers+0x7da/0xc70
[  390.232470]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.237579]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.241806]  __run_timers+0x7e5/0xc70
[  390.245611]  ? timer_fixup_init+0x70/0x70
[  390.249784]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  390.254805]  ? zap_class+0x640/0x640
[  390.258527]  ? print_usage_bug+0xc0/0xc0
[  390.262585]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  390.267784]  ? find_held_lock+0x36/0x1c0
[  390.271935]  ? zap_class+0x640/0x640
[  390.275652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.281186]  ? check_preemption_disabled+0x48/0x280
[  390.286219]  ? __lock_is_held+0xb5/0x140
[  390.290369]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.295905]  ? check_preemption_disabled+0x48/0x280
[  390.300932]  run_timer_softirq+0x52/0xb0
[  390.304991]  ? rcu_read_lock_sched_held+0x14f/0x180
[  390.310004]  __do_softirq+0x308/0xb7e
[  390.313802]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  390.318293]  ? lock_downgrade+0x900/0x900
[  390.322450]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  390.327559]  ? pvclock_read_flags+0x160/0x160
[  390.332055]  ? lapic_next_event+0x5a/0x90
[  390.336209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.341743]  ? kvm_clock_read+0x18/0x30
[  390.345715]  ? kvm_sched_clock_read+0x9/0x20
[  390.350122]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.355665]  ? check_preemption_disabled+0x48/0x280
[  390.360682]  irq_exit+0x17f/0x1c0
[  390.364133]  smp_apic_timer_interrupt+0x1cb/0x760
[  390.368969]  ? smp_call_function_single_interrupt+0x650/0x650
[  390.374842]  ? interrupt_entry+0xb5/0xc0
[  390.378903]  ? trace_hardirqs_off_caller+0xbb/0x310
[  390.383923]  ? trace_hardirqs_off_caller+0xbb/0x310
[  390.388938]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.393894]  ? trace_hardirqs_on_caller+0x310/0x310
[  390.398912]  ? trace_hardirqs_on_caller+0x310/0x310
[  390.403932]  ? task_prio+0x50/0x50
[  390.407480]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.413011]  ? check_preemption_disabled+0x48/0x280
[  390.418029]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.422890]  apic_timer_interrupt+0xf/0x20
[  390.427204]  </IRQ>
[  390.429454] RIP: 0010:dump_stack+0x358/0x39d
[  390.433855] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  390.452889] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  390.460591] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  390.467850] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  390.475118] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  390.482394] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  390.489740] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  390.497110]  ? dump_stack+0x34f/0x39d
[  390.500926]  ? dump_stack_print_info.cold.1+0x20/0x20
[  390.506114]  ? mark_held_locks+0x130/0x130
[  390.510346]  ? mark_held_locks+0x130/0x130
[  390.514579]  dump_header+0x27b/0xf72
[  390.518299]  ? pagefault_out_of_memory+0x197/0x197
[  390.523231]  ? __lock_acquire+0x62f/0x4c20
[  390.527562]  ? percpu_ref_get_many+0x240/0x240
[  390.532144]  ? print_usage_bug+0xc0/0xc0
[  390.536208]  ? zap_class+0x640/0x640
[  390.539928]  ? print_usage_bug+0xc0/0xc0
[  390.543982]  ? print_usage_bug+0xc0/0xc0
[  390.548041]  ? zap_class+0x640/0x640
[  390.551758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.557298]  ? find_held_lock+0x36/0x1c0
[  390.561367]  ? mark_held_locks+0xc7/0x130
[  390.565528]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  390.570626]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  390.575813]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  390.580479]  ? trace_hardirqs_on+0xbd/0x310
[  390.584800]  ? kasan_check_read+0x11/0x20
[  390.588943]  ? ___ratelimit+0x3b4/0x672
[  390.592920]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.598024]  ? trace_hardirqs_on+0x310/0x310
[  390.602516]  ? lock_downgrade+0x900/0x900
[  390.606667]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  390.611769]  ? ___ratelimit+0x3b9/0x672
[  390.615742]  ? idr_get_free+0xf70/0xf70
[  390.619720]  ? find_held_lock+0x36/0x1c0
[  390.623787]  oom_kill_process.cold.27+0x10/0x903
[  390.628539]  ? zap_class+0x640/0x640
[  390.632250]  ? check_preemption_disabled+0x48/0x280
[  390.637371]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  390.642301]  ? kasan_check_read+0x11/0x20
[  390.646445]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.651721]  ? oom_evaluate_task+0x540/0x540
[  390.656154]  ? find_held_lock+0x36/0x1c0
[  390.660238]  ? out_of_memory+0x974/0x1430
[  390.664384]  ? lock_downgrade+0x900/0x900
[  390.668528]  ? check_preemption_disabled+0x48/0x280
[  390.673545]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  390.678470]  ? kasan_check_read+0x11/0x20
[  390.682616]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.687888]  ? rcu_softirq_qs+0x20/0x20
[  390.691874]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.697408]  ? oom_evaluate_task+0x302/0x540
[  390.701815]  out_of_memory+0xa84/0x1430
[  390.705798]  ? oom_killer_disable+0x3a0/0x3a0
[  390.710313]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  390.715241]  ? __ww_mutex_check_waiters+0x160/0x160
[  390.720266]  __alloc_pages_slowpath+0x2354/0x2e10
[  390.725162]  ? warn_alloc+0x120/0x120
[  390.728976]  ? mark_held_locks+0x130/0x130
[  390.733230]  ? find_get_entry+0xaae/0x1120
[  390.737470]  ? filemap_map_pages+0x1a20/0x1a20
[  390.742056]  ? zap_class+0x640/0x640
[  390.745770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.751302]  ? check_preemption_disabled+0x48/0x280
[  390.756313]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.761850]  ? should_fail+0x22d/0xd01
[  390.765759]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.770864]  ? zap_class+0x640/0x640
[  390.774600]  ? __lock_is_held+0xb5/0x140
[  390.778661]  ? mark_held_locks+0x130/0x130
[  390.782903]  ? lock_release+0xa00/0xa00
[  390.786878]  ? perf_trace_sched_process_exec+0x860/0x860
[  390.792331]  ? xa_load+0x2ba/0x460
[  390.795871]  ? lock_downgrade+0x900/0x900
[  390.800023]  ? __might_sleep+0x95/0x190
[  390.803999]  __alloc_pages_nodemask+0xa80/0xde0
[  390.808671]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  390.813687]  ? __page_cache_alloc+0x191/0x5c0
[  390.818176]  ? xa_load+0x2e1/0x460
[  390.821716]  ? xa_clear_mark+0x40/0x40
[  390.825605]  ? zap_class+0x640/0x640
[  390.829332]  ? zap_class+0x640/0x640
[  390.833041]  ? zap_class+0x640/0x640
[  390.836751]  ? __do_page_cache_readahead+0x663/0x810
[  390.841879]  ? find_held_lock+0x36/0x1c0
[  390.845950]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  390.851488]  alloc_pages_current+0x173/0x350
[  390.855915]  __page_cache_alloc+0x38c/0x5c0
[  390.860334]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  390.872838]  ? kasan_check_read+0x11/0x20
[  390.876981]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.882253]  ? generic_perform_write+0x6a0/0x6a0
[  390.887022]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.892574]  ? check_preemption_disabled+0x48/0x280
[  390.898079]  filemap_fault+0x1595/0x25f0
[  390.902152]  ? __lock_page_or_retry+0xa00/0xa00
[  390.906845]  ? mark_held_locks+0x130/0x130
[  390.911086]  ? filemap_map_pages+0xd6b/0x1a20
[  390.915616]  ? lock_downgrade+0x900/0x900
[  390.919757]  ? check_preemption_disabled+0x48/0x280
[  390.924770]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  390.929811]  ? kasan_check_read+0x11/0x20
[  390.933959]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.939252]  ? rcu_softirq_qs+0x20/0x20
[  390.943232]  ? filemap_map_pages+0xd92/0x1a20
[  390.947748]  ? find_get_entries_tag+0x1400/0x1400
[  390.952586]  ? find_held_lock+0x36/0x1c0
[  390.956658]  ? lock_acquire+0x1ed/0x520
[  390.960624]  ? ext4_filemap_fault+0x7a/0xad
[  390.964950]  ? lock_release+0xa00/0xa00
[  390.968922]  ? perf_trace_sched_process_exec+0x860/0x860
[  390.974372]  ? print_usage_bug+0xc0/0xc0
[  390.978442]  ? down_read+0x8d/0x120
[  390.982064]  ? ext4_filemap_fault+0x7a/0xad
[  390.986380]  ? __down_interruptible+0x700/0x700
[  390.991046]  ? find_held_lock+0x36/0x1c0
[  390.995104]  ext4_filemap_fault+0x82/0xad
[  390.999247]  __do_fault+0x100/0x6b0
[  391.002871]  ? lock_downgrade+0x900/0x900
[  391.007013]  ? pmd_devmap_trans_unstable+0x220/0x220
[  391.012223]  ? kasan_check_read+0x11/0x20
[  391.016377]  ? do_raw_spin_unlock+0xa7/0x330
[  391.020779]  ? do_raw_spin_trylock+0x270/0x270
[  391.025369]  __handle_mm_fault+0x3ea0/0x5be0
[  391.029777]  ? perf_trace_lock+0x7a0/0x7a0
[  391.034012]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  391.038863]  ? __switch_to_asm+0x34/0x70
[  391.042927]  ? __switch_to_asm+0x34/0x70
[  391.047011]  ? zap_class+0x640/0x640
[  391.050719]  ? zap_class+0x640/0x640
[  391.054429]  ? __x64_sys_futex+0x53e/0x6a0
[  391.058663]  ? find_held_lock+0x36/0x1c0
[  391.063072]  ? handle_mm_fault+0x42a/0xc70
[  391.067309]  ? lock_downgrade+0x900/0x900
[  391.071452]  ? check_preemption_disabled+0x48/0x280
[  391.076469]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.081478]  ? kasan_check_read+0x11/0x20
[  391.085623]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.090897]  ? rcu_softirq_qs+0x20/0x20
[  391.094875]  ? trace_hardirqs_off_caller+0x310/0x310
[  391.099976]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.105516]  ? check_preemption_disabled+0x48/0x280
[  391.110533]  handle_mm_fault+0x54f/0xc70
[  391.114592]  ? __handle_mm_fault+0x5be0/0x5be0
[  391.119172]  ? find_vma+0x34/0x190
[  391.122841]  __do_page_fault+0x5e8/0xe60
[  391.127000]  ? trace_hardirqs_off+0xb8/0x310
[  391.131415]  do_page_fault+0xf2/0x7e0
[  391.135210]  ? vmalloc_sync_all+0x30/0x30
[  391.139354]  ? error_entry+0x70/0xd0
[  391.143064]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.148072]  ? trace_hardirqs_on_caller+0xc0/0x310
[  391.152998]  ? syscall_return_slowpath+0x5e0/0x5e0
[  391.157925]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.162765]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.167794]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  391.173256]  ? prepare_exit_to_usermode+0x291/0x3b0
[  391.178273]  ? page_fault+0x8/0x30
[  391.181818]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.186656]  ? page_fault+0x8/0x30
[  391.190192]  page_fault+0x1e/0x30
[  391.193637] RIP: 0033:0x404068
[  391.196844] Code: Bad RIP value.
[  391.200202] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  391.205557] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  391.212827] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  391.220092] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  391.227350] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  391.234609] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  391.241902] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  391.241907] warn_alloc_show_mem: 1 callbacks suppressed
[  391.241913] Mem-Info:
[  391.249261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  391.254623] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  391.254623]  active_file:13 inactive_file:13 isolated_file:0
[  391.254623]  unevictable:0 dirty:0 writeback:0 unstable:0
[  391.254623]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  391.254623]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  391.254623]  free:13747 free_pcp:348 free_cma:0
[  391.256990] Call Trace:
[  391.266378] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  391.299387]  <IRQ>
[  391.301950] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  391.329782]  dump_stack+0x244/0x39d
[  391.331906] lowmem_reserve[]: 0 2818 6321 6321
[  391.358018]  ? dump_stack_print_info.cold.1+0x20/0x20
[  391.361612] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  391.366191]  warn_alloc.cold.116+0xb7/0x1bd
[  391.371339] lowmem_reserve[]: 0 0 3503 3503
[  391.398831]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  391.403125] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  391.407442]  ? lock_downgrade+0x900/0x900
[  391.412263] lowmem_reserve[]: 0 0 0 0
[  391.441416]  ? trace_hardirqs_off+0xb8/0x310
[  391.445529] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  391.449326]  ? trace_hardirqs_off+0xb8/0x310
[  391.453700] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  391.467230]  __alloc_pages_slowpath+0x26e8/0x2e10
[  391.471606] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  391.486616]  ? warn_alloc+0x120/0x120
[  391.491414] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  391.506579]  ? print_usage_bug+0xc0/0xc0
[  391.510356] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  391.519258]  ? warn_alloc+0x120/0x120
[  391.523290] 4484 total pagecache pages
[  391.531862]  ? warn_alloc+0x120/0x120
[  391.535640] 0 pages in swap cache
[  391.539506]  ? print_usage_bug+0xc0/0xc0
[  391.543278] Swap cache stats: add 0, delete 0, find 0/0
[  391.546737]  ? kvm_clock_read+0x18/0x30
[  391.550769] Free swap  = 0kB
[  391.556123]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  391.560065] Total swap = 0kB
[  391.563072]  ? print_usage_bug+0xc0/0xc0
[  391.568059] 1965979 pages RAM
[  391.571084]  ? __lock_acquire+0x62f/0x4c20
[  391.575120] 0 pages HighMem/MovableOnly
[  391.575127] 342854 pages reserved
[  391.578221]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.582424] 0 pages cma reserved
[  391.586381]  ? should_fail+0x22d/0xd01
[  391.589864] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  391.595319]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.595340]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  391.598755] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  391.602551]  ? __lock_acquire+0x62f/0x4c20
[  391.609105] syz-fuzzer cpuset=/ mems_allowed=0
[  391.614371]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  391.643565]  ? __lock_acquire+0x62f/0x4c20
[  391.647798]  ? should_fail+0x22d/0xd01
[  391.651680]  ? rcu_irq_exit+0x1a2/0x390
[  391.655656]  ? mark_held_locks+0x130/0x130
[  391.659892]  ? mark_held_locks+0x130/0x130
[  391.664126]  ? mark_held_locks+0xc7/0x130
[  391.668266]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  391.673279]  ? zap_class+0x640/0x640
[  391.676997]  ? print_usage_bug+0xc0/0xc0
[  391.681059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.686602]  ? check_preemption_disabled+0x48/0x280
[  391.691616]  ? __lock_is_held+0xb5/0x140
[  391.695670]  __alloc_pages_nodemask+0xa80/0xde0
[  391.700336]  ? zap_class+0x640/0x640
[  391.704047]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  391.709080]  ? find_held_lock+0x36/0x1c0
[  391.713161]  ? ____cache_alloc_node+0x1c7/0x1e0
[  391.717821]  ? lock_downgrade+0x900/0x900
[  391.721970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.727503]  cache_grow_begin+0xa5/0x8c0
[  391.731554]  ? do_raw_spin_unlock+0xa7/0x330
[  391.736002]  fallback_alloc+0x204/0x2e0
[  391.739979]  ____cache_alloc_node+0x1c7/0x1e0
[  391.744473]  kmem_cache_alloc_node+0xe3/0x730
[  391.749053]  ? ipv6_get_ifaddr+0x42e/0x620
[  391.753292]  __alloc_skb+0x119/0x770
[  391.757001]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.762276]  ? netdev_alloc_frag+0x1f0/0x1f0
[  391.766687]  ? lock_downgrade+0x900/0x900
[  391.770837]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.776382]  ? refcount_sub_and_test_checked+0x203/0x310
[  391.781830]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  391.787279]  ? addrconf_rs_timer+0x690/0x690
[  391.791700]  ndisc_alloc_skb+0x144/0x340
[  391.795767]  ndisc_send_rs+0x331/0x6e0
[  391.799658]  addrconf_rs_timer+0x314/0x690
[  391.803892]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.808133]  call_timer_fn+0x272/0x920
[  391.812034]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.816264]  ? process_timeout+0x40/0x40
[  391.820341]  ? __run_timers+0x7da/0xc70
[  391.824319]  ? _raw_spin_unlock_irq+0x27/0x80
[  391.828805]  ? _raw_spin_unlock_irq+0x27/0x80
[  391.833296]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.837615]  ? lockdep_hardirqs_on+0x296/0x5b0
[  391.842196]  ? trace_hardirqs_on+0xbd/0x310
[  391.846519]  ? kasan_check_read+0x11/0x20
[  391.850663]  ? __run_timers+0x7da/0xc70
[  391.854632]  ? trace_hardirqs_off_caller+0x310/0x310
[  391.859752]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.864014]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  391.868241]  __run_timers+0x7e5/0xc70
[  391.872044]  ? timer_fixup_init+0x70/0x70
[  391.876190]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  391.881289]  ? zap_class+0x640/0x640
[  391.885011]  ? enqueue_hrtimer+0x1a5/0x560
[  391.889242]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  391.894434]  ? find_held_lock+0x36/0x1c0
[  391.898493]  ? zap_class+0x640/0x640
[  391.902216]  ? pvclock_read_flags+0x160/0x160
[  391.906706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.912243]  ? check_preemption_disabled+0x48/0x280
[  391.917264]  ? __lock_is_held+0xb5/0x140
[  391.921324]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.926857]  ? check_preemption_disabled+0x48/0x280
[  391.931872]  run_timer_softirq+0x52/0xb0
[  391.935928]  ? rcu_read_lock_sched_held+0x14f/0x180
[  391.940942]  __do_softirq+0x308/0xb7e
[  391.944750]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  391.949245]  ? lock_downgrade+0x900/0x900
[  391.953411]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  391.958512]  ? pvclock_read_flags+0x160/0x160
[  391.963001]  ? lapic_next_event+0x5a/0x90
[  391.967145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.972681]  ? kvm_clock_read+0x18/0x30
[  391.976650]  ? kvm_sched_clock_read+0x9/0x20
[  391.981059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.986592]  ? check_preemption_disabled+0x48/0x280
[  391.991630]  irq_exit+0x17f/0x1c0
[  391.995082]  smp_apic_timer_interrupt+0x1cb/0x760
[  391.999919]  ? smp_reschedule_interrupt+0x109/0x650
[  392.004933]  ? smp_call_function_single_interrupt+0x650/0x650
[  392.010807]  ? interrupt_entry+0xb5/0xc0
[  392.014878]  ? trace_hardirqs_off_caller+0xbb/0x310
[  392.019960]  ? trace_hardirqs_off_caller+0xbb/0x310
[  392.024977]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.029816]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.034830]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.039840]  ? task_prio+0x50/0x50
[  392.043376]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.048922]  ? check_preemption_disabled+0x48/0x280
[  392.053937]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.058871]  apic_timer_interrupt+0xf/0x20
[  392.063100]  </IRQ>
[  392.065338] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  392.070264] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  392.089162] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  392.096861] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  392.104123] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  392.111388] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  392.118664] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  392.125930] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  392.133231]  skb_clone+0x1bb/0x500
[  392.136772]  ? finish_task_switch+0x2f4/0x910
[  392.141263]  ? skb_split+0x11e0/0x11e0
[  392.145151]  ? preempt_notifier_register+0x200/0x200
[  392.150245]  ? __switch_to_asm+0x34/0x70
[  392.154305]  ? __switch_to_asm+0x34/0x70
[  392.158357]  ? __switch_to_asm+0x40/0x70
[  392.162409]  ? __switch_to_asm+0x34/0x70
[  392.166464]  ? __switch_to_asm+0x40/0x70
[  392.170528]  ? __switch_to_asm+0x34/0x70
[  392.174581]  ? __switch_to_asm+0x40/0x70
[  392.178638]  ? __switch_to_asm+0x34/0x70
[  392.182699]  ? __switch_to_asm+0x34/0x70
[  392.186759]  ? __switch_to_asm+0x40/0x70
[  392.190811]  ? __switch_to_asm+0x34/0x70
[  392.194870]  bpf_clone_redirect+0xb9/0x490
[  392.199103]  ? __schedule+0x8d7/0x21d0
[  392.202995]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  392.208007]  ? __sched_text_start+0x8/0x8
[  392.212166]  ? retint_kernel+0x2d/0x2d
[  392.216113]  ? find_held_lock+0x36/0x1c0
[  392.220177]  ? lock_acquire+0x1ed/0x520
[  392.224148]  ? bpf_test_run+0x3cb/0x780
[  392.228116]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.233650]  ? check_preemption_disabled+0x48/0x280
[  392.238666]  ? kasan_check_read+0x11/0x20
[  392.242816]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.248103]  ? rcu_softirq_qs+0x20/0x20
[  392.252073]  ? preempt_schedule+0x4d/0x60
[  392.256219]  ? ___preempt_schedule+0x16/0x18
[  392.260629]  ? bpf_test_run+0x25d/0x780
[  392.264611]  ? netlink_diag_dump+0x2a0/0x2a0
[  392.269020]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.274553]  ? bpf_test_init.isra.10+0x70/0x100
[  392.279224]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  392.283988]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  392.288824]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  392.294367]  ? fput+0x130/0x1a0
[  392.297644]  ? __bpf_prog_get+0x9b/0x290
[  392.301702]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  392.306639]  ? bpf_prog_test_run+0x130/0x1a0
[  392.311047]  ? __x64_sys_bpf+0x3d8/0x520
[  392.315101]  ? bpf_prog_get+0x20/0x20
[  392.318918]  ? do_syscall_64+0x1b9/0x820
[  392.322973]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  392.328332]  ? syscall_return_slowpath+0x5e0/0x5e0
[  392.333257]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.338101]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.343116]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  392.348128]  ? prepare_exit_to_usermode+0x291/0x3b0
[  392.353148]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.357991]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  392.363366] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  392.363427] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  392.370380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  392.370384] Call Trace:
[  392.370389]  <IRQ>
[  392.370406]  dump_stack+0x244/0x39d
[  392.370424]  ? dump_stack_print_info.cold.1+0x20/0x20
[  392.376940] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  392.386237]  warn_alloc.cold.116+0xb7/0x1bd
[  392.388788] syz-executor2 cpuset=syz2 mems_allowed=0
[  392.390926]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  392.424391]  ? lock_downgrade+0x900/0x900
[  392.428540]  ? trace_hardirqs_off+0xb8/0x310
[  392.432950]  ? trace_hardirqs_off+0xb8/0x310
[  392.437363]  __alloc_pages_slowpath+0x26e8/0x2e10
[  392.442229]  ? warn_alloc+0x120/0x120
[  392.446026]  ? print_usage_bug+0xc0/0xc0
[  392.450087]  ? warn_alloc+0x120/0x120
[  392.453885]  ? warn_alloc+0x120/0x120
[  392.457681]  ? print_usage_bug+0xc0/0xc0
[  392.461744]  ? kvm_clock_read+0x18/0x30
[  392.465729]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  392.470761]  ? print_usage_bug+0xc0/0xc0
[  392.474817]  ? __lock_acquire+0x62f/0x4c20
[  392.479052]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.484582]  ? should_fail+0x22d/0xd01
[  392.488463]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.493737]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.498840]  ? __lock_acquire+0x62f/0x4c20
[  392.503075]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.508170]  ? __lock_acquire+0x62f/0x4c20
[  392.512400]  ? should_fail+0x22d/0xd01
[  392.516279]  ? rcu_irq_exit+0x1a2/0x390
[  392.520260]  ? mark_held_locks+0x130/0x130
[  392.524497]  ? mark_held_locks+0x130/0x130
[  392.528734]  ? mark_held_locks+0xc7/0x130
[  392.532901]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  392.537909]  ? zap_class+0x640/0x640
[  392.541618]  ? print_usage_bug+0xc0/0xc0
[  392.545678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.551218]  ? check_preemption_disabled+0x48/0x280
[  392.556235]  ? __lock_is_held+0xb5/0x140
[  392.560298]  __alloc_pages_nodemask+0xa80/0xde0
[  392.564980]  ? zap_class+0x640/0x640
[  392.568779]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  392.573802]  ? find_held_lock+0x36/0x1c0
[  392.577870]  ? ____cache_alloc_node+0x1c7/0x1e0
[  392.582546]  ? lock_downgrade+0x900/0x900
[  392.586701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.592259]  cache_grow_begin+0xa5/0x8c0
[  392.596314]  ? do_raw_spin_unlock+0xa7/0x330
[  392.600725]  fallback_alloc+0x204/0x2e0
[  392.604711]  ____cache_alloc_node+0x1c7/0x1e0
[  392.609213]  kmem_cache_alloc_node+0xe3/0x730
[  392.613711]  ? ipv6_get_ifaddr+0x42e/0x620
[  392.617954]  __alloc_skb+0x119/0x770
[  392.621769]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.627044]  ? netdev_alloc_frag+0x1f0/0x1f0
[  392.631450]  ? lock_downgrade+0x900/0x900
[  392.635603]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.641139]  ? refcount_sub_and_test_checked+0x203/0x310
[  392.646587]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  392.652048]  ? addrconf_rs_timer+0x690/0x690
[  392.656480]  ndisc_alloc_skb+0x144/0x340
[  392.660664]  ndisc_send_rs+0x331/0x6e0
[  392.664561]  addrconf_rs_timer+0x314/0x690
[  392.668811]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.673054]  call_timer_fn+0x272/0x920
[  392.676935]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.681168]  ? process_timeout+0x40/0x40
[  392.685237]  ? mark_held_locks+0xc7/0x130
[  392.689393]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.693880]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.698369]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.702596]  ? lockdep_hardirqs_on+0x296/0x5b0
[  392.707175]  ? trace_hardirqs_on+0xbd/0x310
[  392.711492]  ? kasan_check_read+0x11/0x20
[  392.715635]  ? __run_timers+0x7da/0xc70
[  392.719604]  ? trace_hardirqs_off_caller+0x310/0x310
[  392.724716]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.728955]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.733183]  __run_timers+0x7e5/0xc70
[  392.736992]  ? timer_fixup_init+0x70/0x70
[  392.741138]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  392.746158]  ? zap_class+0x640/0x640
[  392.749872]  ? print_usage_bug+0xc0/0xc0
[  392.753930]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  392.759124]  ? find_held_lock+0x36/0x1c0
[  392.763191]  ? zap_class+0x640/0x640
[  392.766903]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.772436]  ? check_preemption_disabled+0x48/0x280
[  392.777459]  ? __lock_is_held+0xb5/0x140
[  392.781527]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.787076]  ? check_preemption_disabled+0x48/0x280
[  392.792107]  run_timer_softirq+0x52/0xb0
[  392.796165]  ? rcu_read_lock_sched_held+0x14f/0x180
[  392.801176]  __do_softirq+0x308/0xb7e
[  392.804976]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  392.809462]  ? lock_downgrade+0x900/0x900
[  392.813612]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  392.818716]  ? pvclock_read_flags+0x160/0x160
[  392.823213]  ? lapic_next_event+0x5a/0x90
[  392.827362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.832921]  ? kvm_clock_read+0x18/0x30
[  392.836906]  ? kvm_sched_clock_read+0x9/0x20
[  392.841344]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.846900]  ? check_preemption_disabled+0x48/0x280
[  392.851936]  irq_exit+0x17f/0x1c0
[  392.855403]  smp_apic_timer_interrupt+0x1cb/0x760
[  392.860241]  ? smp_call_function_single_interrupt+0x650/0x650
[  392.866147]  ? interrupt_entry+0xb5/0xc0
[  392.870222]  ? trace_hardirqs_off_caller+0xbb/0x310
[  392.875236]  ? trace_hardirqs_off_caller+0xbb/0x310
[  392.880248]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.885082]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.890096]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.895576]  ? task_prio+0x50/0x50
[  392.899118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.904650]  ? check_preemption_disabled+0x48/0x280
[  392.909683]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.914533]  apic_timer_interrupt+0xf/0x20
[  392.918761]  </IRQ>
[  392.921000] RIP: 0010:dump_stack+0x358/0x39d
[  392.925411] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  392.944306] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  392.952008] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  392.959271] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  392.966535] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  392.973797] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  392.981058] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  392.988339]  ? dump_stack+0x34f/0x39d
[  392.992151]  ? dump_stack_print_info.cold.1+0x20/0x20
[  392.997354]  ? mark_held_locks+0x130/0x130
[  393.001584]  ? mark_held_locks+0x130/0x130
[  393.005817]  dump_header+0x27b/0xf72
[  393.009539]  ? pagefault_out_of_memory+0x197/0x197
[  393.014473]  ? __lock_acquire+0x62f/0x4c20
[  393.018712]  ? percpu_ref_get_many+0x240/0x240
[  393.023295]  ? print_usage_bug+0xc0/0xc0
[  393.027360]  ? zap_class+0x640/0x640
[  393.031073]  ? print_usage_bug+0xc0/0xc0
[  393.035142]  ? print_usage_bug+0xc0/0xc0
[  393.039223]  ? zap_class+0x640/0x640
[  393.042942]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.048478]  ? find_held_lock+0x36/0x1c0
[  393.052542]  ? mark_held_locks+0xc7/0x130
[  393.056689]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  393.062118]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  393.067220]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  393.071799]  ? trace_hardirqs_on+0xbd/0x310
[  393.076119]  ? kasan_check_read+0x11/0x20
[  393.080264]  ? ___ratelimit+0x3b4/0x672
[  393.084236]  ? trace_hardirqs_off_caller+0x310/0x310
[  393.089335]  ? trace_hardirqs_on+0x310/0x310
[  393.093739]  ? lock_downgrade+0x900/0x900
[  393.097888]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  393.102987]  ? ___ratelimit+0x3b9/0x672
[  393.106966]  ? idr_get_free+0xf70/0xf70
[  393.110952]  ? find_held_lock+0x36/0x1c0
[  393.115017]  oom_kill_process.cold.27+0x10/0x903
[  393.119769]  ? zap_class+0x640/0x640
[  393.123488]  ? check_preemption_disabled+0x48/0x280
[  393.128498]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.133423]  ? kasan_check_read+0x11/0x20
[  393.137565]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.142837]  ? oom_evaluate_task+0x540/0x540
[  393.147242]  ? find_held_lock+0x36/0x1c0
[  393.151307]  ? out_of_memory+0x974/0x1430
[  393.155452]  ? lock_downgrade+0x900/0x900
[  393.159602]  ? check_preemption_disabled+0x48/0x280
[  393.164613]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.169543]  ? kasan_check_read+0x11/0x20
[  393.173684]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.178960]  ? rcu_softirq_qs+0x20/0x20
[  393.182934]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.188470]  ? oom_evaluate_task+0x302/0x540
[  393.192877]  out_of_memory+0xa84/0x1430
[  393.196856]  ? oom_killer_disable+0x3a0/0x3a0
[  393.201344]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  393.206267]  ? __ww_mutex_check_waiters+0x160/0x160
[  393.211290]  __alloc_pages_slowpath+0x2354/0x2e10
[  393.216154]  ? warn_alloc+0x120/0x120
[  393.219947]  ? mark_held_locks+0x130/0x130
[  393.224180]  ? find_get_entry+0xaae/0x1120
[  393.228417]  ? filemap_map_pages+0x1a20/0x1a20
[  393.233105]  ? zap_class+0x640/0x640
[  393.236817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.242353]  ? check_preemption_disabled+0x48/0x280
[  393.247365]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.252906]  ? should_fail+0x22d/0xd01
[  393.256791]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.261889]  ? zap_class+0x640/0x640
[  393.265623]  ? __lock_is_held+0xb5/0x140
[  393.269704]  ? mark_held_locks+0x130/0x130
[  393.273951]  ? lock_release+0xa00/0xa00
[  393.277926]  ? perf_trace_sched_process_exec+0x860/0x860
[  393.283374]  ? xa_load+0x2ba/0x460
[  393.286912]  ? lock_downgrade+0x900/0x900
[  393.291060]  ? __might_sleep+0x95/0x190
[  393.295032]  __alloc_pages_nodemask+0xa80/0xde0
[  393.299710]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  393.304729]  ? __page_cache_alloc+0x191/0x5c0
[  393.309217]  ? xa_load+0x2e1/0x460
[  393.312761]  ? xa_clear_mark+0x40/0x40
[  393.316649]  ? zap_class+0x640/0x640
[  393.320363]  ? zap_class+0x640/0x640
[  393.324068]  ? zap_class+0x640/0x640
[  393.327778]  ? __do_page_cache_readahead+0x663/0x810
[  393.332882]  ? find_held_lock+0x36/0x1c0
[  393.336941]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  393.342487]  alloc_pages_current+0x173/0x350
[  393.346895]  __page_cache_alloc+0x38c/0x5c0
[  393.351208]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.356144]  ? kasan_check_read+0x11/0x20
[  393.360285]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.365556]  ? generic_perform_write+0x6a0/0x6a0
[  393.370310]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.375842]  ? check_preemption_disabled+0x48/0x280
[  393.380857]  filemap_fault+0x1595/0x25f0
[  393.384930]  ? __lock_page_or_retry+0xa00/0xa00
[  393.389602]  ? mark_held_locks+0x130/0x130
[  393.393850]  ? filemap_map_pages+0xd6b/0x1a20
[  393.398357]  ? lock_downgrade+0x900/0x900
[  393.402499]  ? check_preemption_disabled+0x48/0x280
[  393.407512]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.412438]  ? kasan_check_read+0x11/0x20
[  393.416585]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.421855]  ? rcu_softirq_qs+0x20/0x20
[  393.425852]  ? filemap_map_pages+0xd92/0x1a20
[  393.430372]  ? find_get_entries_tag+0x1400/0x1400
[  393.435206]  ? find_held_lock+0x36/0x1c0
[  393.439282]  ? lock_acquire+0x1ed/0x520
[  393.443251]  ? ext4_filemap_fault+0x7a/0xad
[  393.447571]  ? lock_release+0xa00/0xa00
[  393.451541]  ? perf_trace_sched_process_exec+0x860/0x860
[  393.456988]  ? print_usage_bug+0xc0/0xc0
[  393.461057]  ? down_read+0x8d/0x120
[  393.464683]  ? ext4_filemap_fault+0x7a/0xad
[  393.469001]  ? __down_interruptible+0x700/0x700
[  393.473675]  ? find_held_lock+0x36/0x1c0
[  393.477752]  ext4_filemap_fault+0x82/0xad
[  393.481899]  __do_fault+0x100/0x6b0
[  393.485521]  ? lock_downgrade+0x900/0x900
[  393.489671]  ? pmd_devmap_trans_unstable+0x220/0x220
[  393.494807]  ? kasan_check_read+0x11/0x20
[  393.498948]  ? do_raw_spin_unlock+0xa7/0x330
[  393.503349]  ? do_raw_spin_trylock+0x270/0x270
[  393.507952]  __handle_mm_fault+0x3ea0/0x5be0
[  393.512355]  ? perf_trace_lock+0x7a0/0x7a0
[  393.516595]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  393.521447]  ? __switch_to_asm+0x34/0x70
[  393.525503]  ? __switch_to_asm+0x34/0x70
[  393.529574]  ? zap_class+0x640/0x640
[  393.533301]  ? zap_class+0x640/0x640
[  393.537024]  ? __x64_sys_futex+0x53e/0x6a0
[  393.541259]  ? find_held_lock+0x36/0x1c0
[  393.545347]  ? handle_mm_fault+0x42a/0xc70
[  393.549576]  ? lock_downgrade+0x900/0x900
[  393.553719]  ? check_preemption_disabled+0x48/0x280
[  393.558736]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.563670]  ? kasan_check_read+0x11/0x20
[  393.567809]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.573099]  ? rcu_softirq_qs+0x20/0x20
[  393.577066]  ? trace_hardirqs_off_caller+0x310/0x310
[  393.582180]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.587711]  ? check_preemption_disabled+0x48/0x280
[  393.592732]  handle_mm_fault+0x54f/0xc70
[  393.596804]  ? __handle_mm_fault+0x5be0/0x5be0
[  393.601388]  ? find_vma+0x34/0x190
[  393.604933]  __do_page_fault+0x5e8/0xe60
[  393.608987]  ? trace_hardirqs_off+0xb8/0x310
[  393.613397]  do_page_fault+0xf2/0x7e0
[  393.617193]  ? vmalloc_sync_all+0x30/0x30
[  393.621335]  ? error_entry+0x70/0xd0
[  393.625044]  ? trace_hardirqs_off_caller+0xbb/0x310
[  393.630058]  ? trace_hardirqs_on_caller+0xc0/0x310
[  393.634994]  ? syscall_return_slowpath+0x5e0/0x5e0
[  393.639921]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.644763]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.649776]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  393.655224]  ? prepare_exit_to_usermode+0x291/0x3b0
[  393.660232]  ? page_fault+0x8/0x30
[  393.663767]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.668612]  ? page_fault+0x8/0x30
[  393.672151]  page_fault+0x1e/0x30
[  393.675597] RIP: 0033:0x404068
[  393.678808] Code: Bad RIP value.
[  393.682255] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  393.687613] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  393.694896] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  393.702157] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  393.709504] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  393.716772] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  393.724057] warn_alloc_show_mem: 1 callbacks suppressed
[  393.724066] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  393.724068] Mem-Info:
[  393.724098] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  393.724098]  active_file:13 inactive_file:13 isolated_file:0
[  393.724098]  unevictable:0 dirty:0 writeback:0 unstable:0
[  393.724098]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  393.724098]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  393.724098]  free:13747 free_pcp:348 free_cma:0
[  393.729430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  393.736886] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  393.739274] Call Trace:
[  393.772301] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  393.781638]  <IRQ>
[  393.809543] lowmem_reserve[]: 0 2818 6321 6321
[  393.812157]  dump_stack+0x244/0x39d
[  393.838234] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  393.840379]  ? dump_stack_print_info.cold.1+0x20/0x20
[  393.844927] lowmem_reserve[]: 0 0 3503 3503
[  393.848657]  warn_alloc.cold.116+0xb7/0x1bd
[  393.876120] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  393.881304]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  393.885603] lowmem_reserve[]: 0 0 0 0
[  393.889921]  ? lock_downgrade+0x900/0x900
[  393.919036] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  393.923876]  ? trace_hardirqs_off+0xb8/0x310
[  393.927648] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  393.931805]  ? trace_hardirqs_off+0xb8/0x310
[  393.945296] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  393.949700]  __alloc_pages_slowpath+0x26e8/0x2e10
[  393.964755] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  393.969174]  ? warn_alloc+0x120/0x120
[  393.984300] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  393.989556]  ? print_usage_bug+0xc0/0xc0
[  393.998363] 4484 total pagecache pages
[  394.002153]  ? warn_alloc+0x120/0x120
[  394.010714] 0 pages in swap cache
[  394.014760]  ? warn_alloc+0x120/0x120
[  394.018619] Swap cache stats: add 0, delete 0, find 0/0
[  394.022402]  ? print_usage_bug+0xc0/0xc0
[  394.025825] Free swap  = 0kB
[  394.029623]  ? print_usage_bug+0xc0/0xc0
[  394.034953] Total swap = 0kB
[  394.034960] 1965979 pages RAM
[  394.039007]  ? __lock_acquire+0x62f/0x4c20
[  394.042003] 0 pages HighMem/MovableOnly
[  394.046154]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.049146] 342854 pages reserved
[  394.052338]  ? should_fail+0x22d/0xd01
[  394.056540] 0 pages cma reserved
[  394.060503]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.066078] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  394.069459]  ? __lock_acquire+0x62f/0x4c20
[  394.069476]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.069491]  ? __lock_acquire+0x62f/0x4c20
[  394.073491] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  394.076794]  ? should_fail+0x22d/0xd01
[  394.081871] syz-fuzzer cpuset=/ mems_allowed=0
[  394.088352]  ? find_held_lock+0x36/0x1c0
[  394.124648]  ? mark_held_locks+0x130/0x130
[  394.128886]  ? mark_held_locks+0x130/0x130
[  394.133123]  ? zap_class+0x640/0x640
[  394.136836]  ? zap_class+0x640/0x640
[  394.140549]  ? print_usage_bug+0xc0/0xc0
[  394.144612]  ? do_raw_spin_unlock+0xa7/0x330
[  394.149013]  ? zap_class+0x640/0x640
[  394.152727]  ? print_usage_bug+0xc0/0xc0
[  394.156782]  ? wq_watchdog_touch+0x9c/0xfe
[  394.161030]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.166573]  ? check_preemption_disabled+0x48/0x280
[  394.171696]  ? __lock_is_held+0xb5/0x140
[  394.175757]  __alloc_pages_nodemask+0xa80/0xde0
[  394.180424]  ? zap_class+0x640/0x640
[  394.184149]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  394.189174]  ? find_held_lock+0x36/0x1c0
[  394.193243]  ? ____cache_alloc_node+0x1c7/0x1e0
[  394.197912]  ? lock_downgrade+0x900/0x900
[  394.202062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.207688]  cache_grow_begin+0xa5/0x8c0
[  394.211748]  ? do_raw_spin_unlock+0xa7/0x330
[  394.216161]  fallback_alloc+0x204/0x2e0
[  394.220145]  ____cache_alloc_node+0x1c7/0x1e0
[  394.224650]  kmem_cache_alloc_node+0xe3/0x730
[  394.229142]  ? ipv6_get_ifaddr+0x42e/0x620
[  394.233381]  __alloc_skb+0x119/0x770
[  394.237089]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.242370]  ? netdev_alloc_frag+0x1f0/0x1f0
[  394.246785]  ? lock_downgrade+0x900/0x900
[  394.250938]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.256471]  ? refcount_sub_and_test_checked+0x203/0x310
[  394.261922]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  394.267369]  ? addrconf_rs_timer+0x690/0x690
[  394.271784]  ndisc_alloc_skb+0x144/0x340
[  394.275932]  ndisc_send_rs+0x331/0x6e0
[  394.279823]  addrconf_rs_timer+0x314/0x690
[  394.284058]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.288297]  call_timer_fn+0x272/0x920
[  394.292182]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.296410]  ? process_timeout+0x40/0x40
[  394.300473]  ? __run_timers+0x7da/0xc70
[  394.304453]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.308942]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.313432]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.317677]  ? lockdep_hardirqs_on+0x296/0x5b0
[  394.322256]  ? trace_hardirqs_on+0xbd/0x310
[  394.326577]  ? kasan_check_read+0x11/0x20
[  394.330805]  ? __run_timers+0x7da/0xc70
[  394.334780]  ? trace_hardirqs_off_caller+0x310/0x310
[  394.339880]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.344119]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.348346]  __run_timers+0x7e5/0xc70
[  394.352149]  ? timer_fixup_init+0x70/0x70
[  394.356378]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  394.361388]  ? zap_class+0x640/0x640
[  394.365107]  ? enqueue_hrtimer+0x1a5/0x560
[  394.369336]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  394.374531]  ? find_held_lock+0x36/0x1c0
[  394.378600]  ? zap_class+0x640/0x640
[  394.382313]  ? pvclock_read_flags+0x160/0x160
[  394.386807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.392340]  ? check_preemption_disabled+0x48/0x280
[  394.397363]  ? __lock_is_held+0xb5/0x140
[  394.401439]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.406971]  ? check_preemption_disabled+0x48/0x280
[  394.411986]  run_timer_softirq+0x52/0xb0
[  394.416041]  ? rcu_read_lock_sched_held+0x14f/0x180
[  394.421061]  __do_softirq+0x308/0xb7e
[  394.424869]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  394.429365]  ? lock_downgrade+0x900/0x900
[  394.433514]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  394.438630]  ? pvclock_read_flags+0x160/0x160
[  394.443134]  ? lapic_next_event+0x5a/0x90
[  394.447278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.452828]  ? kvm_clock_read+0x18/0x30
[  394.456797]  ? kvm_sched_clock_read+0x9/0x20
[  394.461204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.466736]  ? check_preemption_disabled+0x48/0x280
[  394.471866]  irq_exit+0x17f/0x1c0
[  394.475319]  smp_apic_timer_interrupt+0x1cb/0x760
[  394.480157]  ? smp_reschedule_interrupt+0x109/0x650
[  394.485171]  ? smp_call_function_single_interrupt+0x650/0x650
[  394.491052]  ? interrupt_entry+0xb5/0xc0
[  394.495123]  ? trace_hardirqs_off_caller+0xbb/0x310
[  394.500132]  ? trace_hardirqs_off_caller+0xbb/0x310
[  394.505159]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.509999]  ? trace_hardirqs_on_caller+0x310/0x310
[  394.515015]  ? trace_hardirqs_on_caller+0x310/0x310
[  394.520031]  ? task_prio+0x50/0x50
[  394.523571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.529105]  ? check_preemption_disabled+0x48/0x280
[  394.534210]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.539079]  apic_timer_interrupt+0xf/0x20
[  394.543331]  </IRQ>
[  394.545566] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  394.550495] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  394.569485] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  394.577185] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  394.584448] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  394.591712] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  394.598996] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  394.606257] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  394.613566]  skb_clone+0x1bb/0x500
[  394.617108]  ? finish_task_switch+0x2f4/0x910
[  394.621601]  ? skb_split+0x11e0/0x11e0
[  394.625490]  ? preempt_notifier_register+0x200/0x200
[  394.630585]  ? __switch_to_asm+0x34/0x70
[  394.634642]  ? __switch_to_asm+0x34/0x70
[  394.638699]  ? __switch_to_asm+0x40/0x70
[  394.642758]  ? __switch_to_asm+0x34/0x70
[  394.646811]  ? __switch_to_asm+0x40/0x70
[  394.650866]  ? __switch_to_asm+0x34/0x70
[  394.654918]  ? __switch_to_asm+0x40/0x70
[  394.658974]  ? __switch_to_asm+0x34/0x70
[  394.663028]  ? __switch_to_asm+0x34/0x70
[  394.667104]  ? __switch_to_asm+0x40/0x70
[  394.671159]  ? __switch_to_asm+0x34/0x70
[  394.675306]  bpf_clone_redirect+0xb9/0x490
[  394.679544]  ? __schedule+0x8d7/0x21d0
[  394.683432]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  394.688443]  ? __sched_text_start+0x8/0x8
[  394.692591]  ? retint_kernel+0x2d/0x2d
[  394.696490]  ? find_held_lock+0x36/0x1c0
[  394.700573]  ? lock_acquire+0x1ed/0x520
[  394.704565]  ? bpf_test_run+0x3cb/0x780
[  394.708544]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.714078]  ? check_preemption_disabled+0x48/0x280
[  394.719098]  ? kasan_check_read+0x11/0x20
[  394.723242]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.728523]  ? rcu_softirq_qs+0x20/0x20
[  394.732498]  ? preempt_schedule+0x4d/0x60
[  394.736649]  ? ___preempt_schedule+0x16/0x18
[  394.741059]  ? bpf_test_run+0x25d/0x780
[  394.745042]  ? netlink_diag_dump+0x2a0/0x2a0
[  394.749455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.754991]  ? bpf_test_init.isra.10+0x70/0x100
[  394.759659]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  394.764420]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  394.769259]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  394.774790]  ? fput+0x130/0x1a0
[  394.778170]  ? __bpf_prog_get+0x9b/0x290
[  394.782232]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  394.787069]  ? bpf_prog_test_run+0x130/0x1a0
[  394.791474]  ? __x64_sys_bpf+0x3d8/0x520
[  394.795538]  ? bpf_prog_get+0x20/0x20
[  394.799351]  ? do_syscall_64+0x1b9/0x820
[  394.803404]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  394.808764]  ? syscall_return_slowpath+0x5e0/0x5e0
[  394.813689]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.818538]  ? trace_hardirqs_on_caller+0x310/0x310
[  394.823559]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  394.828581]  ? prepare_exit_to_usermode+0x291/0x3b0
[  394.833603]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.838450]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  394.843827] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  394.843891] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  394.850838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  394.850843] Call Trace:
[  394.850849]  <IRQ>
[  394.850865]  dump_stack+0x244/0x39d
[  394.850884]  ? dump_stack_print_info.cold.1+0x20/0x20
[  394.857426] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  394.866706]  warn_alloc.cold.116+0xb7/0x1bd
[  394.869258] syz-executor2 cpuset=syz2 mems_allowed=0
[  394.871396]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  394.905441]  ? lock_downgrade+0x900/0x900
[  394.909600]  ? trace_hardirqs_off+0xb8/0x310
[  394.914018]  ? trace_hardirqs_off+0xb8/0x310
[  394.918430]  __alloc_pages_slowpath+0x26e8/0x2e10
[  394.923298]  ? warn_alloc+0x120/0x120
[  394.927097]  ? print_usage_bug+0xc0/0xc0
[  394.931156]  ? warn_alloc+0x120/0x120
[  394.934958]  ? warn_alloc+0x120/0x120
[  394.938756]  ? print_usage_bug+0xc0/0xc0
[  394.942817]  ? print_usage_bug+0xc0/0xc0
[  394.946897]  ? __lock_acquire+0x62f/0x4c20
[  394.951136]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.956670]  ? should_fail+0x22d/0xd01
[  394.960577]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.965674]  ? __lock_acquire+0x62f/0x4c20
[  394.969910]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.975017]  ? __lock_acquire+0x62f/0x4c20
[  394.979244]  ? should_fail+0x22d/0xd01
[  394.983127]  ? find_held_lock+0x36/0x1c0
[  394.987189]  ? mark_held_locks+0x130/0x130
[  394.991426]  ? mark_held_locks+0x130/0x130
[  394.995658]  ? zap_class+0x640/0x640
[  394.999370]  ? zap_class+0x640/0x640
[  395.003082]  ? print_usage_bug+0xc0/0xc0
[  395.007138]  ? do_raw_spin_unlock+0xa7/0x330
[  395.011543]  ? zap_class+0x640/0x640
[  395.015256]  ? print_usage_bug+0xc0/0xc0
[  395.019311]  ? wq_watchdog_touch+0x9c/0xfe
[  395.023557]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.029091]  ? check_preemption_disabled+0x48/0x280
[  395.034113]  ? __lock_is_held+0xb5/0x140
[  395.038174]  __alloc_pages_nodemask+0xa80/0xde0
[  395.042837]  ? zap_class+0x640/0x640
[  395.046559]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  395.051581]  ? find_held_lock+0x36/0x1c0
[  395.055651]  ? ____cache_alloc_node+0x1c7/0x1e0
[  395.060334]  ? lock_downgrade+0x900/0x900
[  395.064813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.070354]  cache_grow_begin+0xa5/0x8c0
[  395.074413]  ? do_raw_spin_unlock+0xa7/0x330
[  395.078825]  fallback_alloc+0x204/0x2e0
[  395.082800]  ____cache_alloc_node+0x1c7/0x1e0
[  395.087296]  kmem_cache_alloc_node+0xe3/0x730
[  395.091893]  ? ipv6_get_ifaddr+0x42e/0x620
[  395.096136]  __alloc_skb+0x119/0x770
[  395.099847]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.105125]  ? netdev_alloc_frag+0x1f0/0x1f0
[  395.109644]  ? lock_downgrade+0x900/0x900
[  395.113796]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.119328]  ? refcount_sub_and_test_checked+0x203/0x310
[  395.124807]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  395.130253]  ? addrconf_rs_timer+0x690/0x690
[  395.134669]  ndisc_alloc_skb+0x144/0x340
[  395.138729]  ndisc_send_rs+0x331/0x6e0
[  395.142618]  addrconf_rs_timer+0x314/0x690
[  395.146854]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.151091]  call_timer_fn+0x272/0x920
[  395.154971]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.159202]  ? process_timeout+0x40/0x40
[  395.163265]  ? mark_held_locks+0xc7/0x130
[  395.167408]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.171896]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.176384]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.180617]  ? lockdep_hardirqs_on+0x296/0x5b0
[  395.185196]  ? trace_hardirqs_on+0xbd/0x310
[  395.189522]  ? kasan_check_read+0x11/0x20
[  395.193668]  ? __run_timers+0x7da/0xc70
[  395.197638]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.202739]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.206973]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.211209]  __run_timers+0x7e5/0xc70
[  395.215015]  ? timer_fixup_init+0x70/0x70
[  395.219166]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  395.224177]  ? zap_class+0x640/0x640
[  395.227889]  ? print_usage_bug+0xc0/0xc0
[  395.231949]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  395.237146]  ? find_held_lock+0x36/0x1c0
[  395.241207]  ? zap_class+0x640/0x640
[  395.244919]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.250541]  ? check_preemption_disabled+0x48/0x280
[  395.255567]  ? __lock_is_held+0xb5/0x140
[  395.259623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.265154]  ? check_preemption_disabled+0x48/0x280
[  395.270169]  run_timer_softirq+0x52/0xb0
[  395.274225]  ? rcu_read_lock_sched_held+0x14f/0x180
[  395.279236]  __do_softirq+0x308/0xb7e
[  395.283056]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  395.287630]  ? lock_downgrade+0x900/0x900
[  395.291781]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  395.296885]  ? pvclock_read_flags+0x160/0x160
[  395.301375]  ? lapic_next_event+0x5a/0x90
[  395.305517]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.311072]  ? kvm_clock_read+0x18/0x30
[  395.315062]  ? kvm_sched_clock_read+0x9/0x20
[  395.319479]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.325012]  ? check_preemption_disabled+0x48/0x280
[  395.330031]  irq_exit+0x17f/0x1c0
[  395.333486]  smp_apic_timer_interrupt+0x1cb/0x760
[  395.338326]  ? smp_call_function_single_interrupt+0x650/0x650
[  395.344204]  ? interrupt_entry+0xb5/0xc0
[  395.348260]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.353271]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.358282]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.363120]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.368128]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.373143]  ? task_prio+0x50/0x50
[  395.376678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.382211]  ? check_preemption_disabled+0x48/0x280
[  395.387226]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.392073]  apic_timer_interrupt+0xf/0x20
[  395.396307]  </IRQ>
[  395.398547] RIP: 0010:dump_stack+0x358/0x39d
[  395.402954] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  395.421847] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  395.429547] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  395.436825] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  395.444088] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  395.451351] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  395.458611] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  395.465893]  ? dump_stack+0x34f/0x39d
[  395.469721]  ? dump_stack_print_info.cold.1+0x20/0x20
[  395.474908]  ? mark_held_locks+0x130/0x130
[  395.479140]  ? mark_held_locks+0x130/0x130
[  395.483373]  dump_header+0x27b/0xf72
[  395.487097]  ? pagefault_out_of_memory+0x197/0x197
[  395.492030]  ? __lock_acquire+0x62f/0x4c20
[  395.496259]  ? percpu_ref_get_many+0x240/0x240
[  395.500841]  ? print_usage_bug+0xc0/0xc0
[  395.505010]  ? zap_class+0x640/0x640
[  395.508727]  ? print_usage_bug+0xc0/0xc0
[  395.512782]  ? print_usage_bug+0xc0/0xc0
[  395.516856]  ? zap_class+0x640/0x640
[  395.520577]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.526132]  ? find_held_lock+0x36/0x1c0
[  395.530195]  ? mark_held_locks+0xc7/0x130
[  395.534339]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  395.539437]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  395.544545]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  395.549121]  ? trace_hardirqs_on+0xbd/0x310
[  395.553453]  ? kasan_check_read+0x11/0x20
[  395.557595]  ? ___ratelimit+0x3b4/0x672
[  395.561566]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.566664]  ? trace_hardirqs_on+0x310/0x310
[  395.571071]  ? lock_downgrade+0x900/0x900
[  395.575221]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  395.580321]  ? ___ratelimit+0x3b9/0x672
[  395.584293]  ? idr_get_free+0xf70/0xf70
[  395.588264]  ? find_held_lock+0x36/0x1c0
[  395.592331]  oom_kill_process.cold.27+0x10/0x903
[  395.597080]  ? zap_class+0x640/0x640
[  395.600789]  ? check_preemption_disabled+0x48/0x280
[  395.605799]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.610728]  ? kasan_check_read+0x11/0x20
[  395.614873]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.620144]  ? oom_evaluate_task+0x540/0x540
[  395.624572]  ? find_held_lock+0x36/0x1c0
[  395.628639]  ? out_of_memory+0x974/0x1430
[  395.632783]  ? lock_downgrade+0x900/0x900
[  395.636929]  ? check_preemption_disabled+0x48/0x280
[  395.641945]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.646870]  ? kasan_check_read+0x11/0x20
[  395.651036]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.656305]  ? rcu_softirq_qs+0x20/0x20
[  395.660276]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.665807]  ? oom_evaluate_task+0x302/0x540
[  395.670216]  out_of_memory+0xa84/0x1430
[  395.674194]  ? oom_killer_disable+0x3a0/0x3a0
[  395.678686]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  395.683616]  ? __ww_mutex_check_waiters+0x160/0x160
[  395.688638]  __alloc_pages_slowpath+0x2354/0x2e10
[  395.693511]  ? warn_alloc+0x120/0x120
[  395.697309]  ? mark_held_locks+0x130/0x130
[  395.701542]  ? find_get_entry+0xaae/0x1120
[  395.705782]  ? filemap_map_pages+0x1a20/0x1a20
[  395.710364]  ? zap_class+0x640/0x640
[  395.714081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.719618]  ? check_preemption_disabled+0x48/0x280
[  395.724628]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.730247]  ? should_fail+0x22d/0xd01
[  395.734137]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.739236]  ? zap_class+0x640/0x640
[  395.742971]  ? __lock_is_held+0xb5/0x140
[  395.747035]  ? mark_held_locks+0x130/0x130
[  395.751265]  ? lock_release+0xa00/0xa00
[  395.755325]  ? perf_trace_sched_process_exec+0x860/0x860
[  395.760770]  ? xa_load+0x2ba/0x460
[  395.764306]  ? lock_downgrade+0x900/0x900
[  395.768460]  ? __might_sleep+0x95/0x190
[  395.772445]  __alloc_pages_nodemask+0xa80/0xde0
[  395.777115]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  395.782126]  ? __page_cache_alloc+0x191/0x5c0
[  395.786618]  ? xa_load+0x2e1/0x460
[  395.790157]  ? xa_clear_mark+0x40/0x40
[  395.794044]  ? zap_class+0x640/0x640
[  395.797764]  ? zap_class+0x640/0x640
[  395.801479]  ? zap_class+0x640/0x640
[  395.805194]  ? __do_page_cache_readahead+0x663/0x810
[  395.810297]  ? find_held_lock+0x36/0x1c0
[  395.814359]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  395.819898]  alloc_pages_current+0x173/0x350
[  395.824307]  __page_cache_alloc+0x38c/0x5c0
[  395.828619]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.833565]  ? kasan_check_read+0x11/0x20
[  395.837711]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.842988]  ? generic_perform_write+0x6a0/0x6a0
[  395.847740]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.853360]  ? check_preemption_disabled+0x48/0x280
[  395.858381]  filemap_fault+0x1595/0x25f0
[  395.862459]  ? __lock_page_or_retry+0xa00/0xa00
[  395.867131]  ? mark_held_locks+0x130/0x130
[  395.871369]  ? filemap_map_pages+0xd6b/0x1a20
[  395.875863]  ? lock_downgrade+0x900/0x900
[  395.880008]  ? check_preemption_disabled+0x48/0x280
[  395.885024]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  395.889947]  ? kasan_check_read+0x11/0x20
[  395.894091]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.899362]  ? rcu_softirq_qs+0x20/0x20
[  395.903346]  ? filemap_map_pages+0xd92/0x1a20
[  395.907849]  ? find_get_entries_tag+0x1400/0x1400
[  395.912684]  ? find_held_lock+0x36/0x1c0
[  395.916759]  ? lock_acquire+0x1ed/0x520
[  395.920726]  ? ext4_filemap_fault+0x7a/0xad
[  395.925047]  ? lock_release+0xa00/0xa00
[  395.929020]  ? perf_trace_sched_process_exec+0x860/0x860
[  395.934465]  ? print_usage_bug+0xc0/0xc0
[  395.938544]  ? down_read+0x8d/0x120
[  395.942161]  ? ext4_filemap_fault+0x7a/0xad
[  395.946483]  ? __down_interruptible+0x700/0x700
[  395.951150]  ? find_held_lock+0x36/0x1c0
[  395.955215]  ext4_filemap_fault+0x82/0xad
[  395.959359]  __do_fault+0x100/0x6b0
[  395.962981]  ? lock_downgrade+0x900/0x900
[  395.967134]  ? pmd_devmap_trans_unstable+0x220/0x220
[  395.972238]  ? kasan_check_read+0x11/0x20
[  395.976404]  ? do_raw_spin_unlock+0xa7/0x330
[  395.980817]  ? do_raw_spin_trylock+0x270/0x270
[  395.985408]  __handle_mm_fault+0x3ea0/0x5be0
[  395.989819]  ? perf_trace_lock+0x7a0/0x7a0
[  395.994057]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  395.998902]  ? __switch_to_asm+0x34/0x70
[  396.002956]  ? __switch_to_asm+0x34/0x70
[  396.007035]  ? zap_class+0x640/0x640
[  396.010743]  ? zap_class+0x640/0x640
[  396.014455]  ? __x64_sys_futex+0x53e/0x6a0
[  396.018715]  ? find_held_lock+0x36/0x1c0
[  396.022783]  ? handle_mm_fault+0x42a/0xc70
[  396.027015]  ? lock_downgrade+0x900/0x900
[  396.031159]  ? check_preemption_disabled+0x48/0x280
[  396.036177]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  396.041103]  ? kasan_check_read+0x11/0x20
[  396.045246]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.050517]  ? rcu_softirq_qs+0x20/0x20
[  396.054493]  ? trace_hardirqs_off_caller+0x310/0x310
[  396.059591]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.065122]  ? check_preemption_disabled+0x48/0x280
[  396.070143]  handle_mm_fault+0x54f/0xc70
[  396.074202]  ? __handle_mm_fault+0x5be0/0x5be0
[  396.078789]  ? find_vma+0x34/0x190
[  396.082329]  __do_page_fault+0x5e8/0xe60
[  396.086384]  ? trace_hardirqs_off+0xb8/0x310
[  396.090805]  do_page_fault+0xf2/0x7e0
[  396.094607]  ? vmalloc_sync_all+0x30/0x30
[  396.098751]  ? error_entry+0x70/0xd0
[  396.102470]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.107482]  ? trace_hardirqs_on_caller+0xc0/0x310
[  396.112412]  ? syscall_return_slowpath+0x5e0/0x5e0
[  396.117341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.122183]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.127194]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  396.132761]  ? prepare_exit_to_usermode+0x291/0x3b0
[  396.137773]  ? page_fault+0x8/0x30
[  396.141309]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.146153]  ? page_fault+0x8/0x30
[  396.149700]  page_fault+0x1e/0x30
[  396.153144] RIP: 0033:0x404068
[  396.156344] Code: Bad RIP value.
[  396.159703] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  396.165160] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  396.172441] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  396.179707] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  396.186998] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  396.194262] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  396.201543] warn_alloc_show_mem: 1 callbacks suppressed
[  396.201552] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  396.201554] Mem-Info:
[  396.201584] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  396.201584]  active_file:13 inactive_file:13 isolated_file:0
[  396.201584]  unevictable:0 dirty:0 writeback:0 unstable:0
[  396.201584]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  396.201584]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  396.201584]  free:13747 free_pcp:348 free_cma:0
[  396.206922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  396.206929] Call Trace:
[  396.214292] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  396.216683]  <IRQ>
[  396.249709] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  396.259054]  dump_stack+0x244/0x39d
[  396.261695] lowmem_reserve[]: 0 2818 6321 6321
[  396.289616]  ? dump_stack_print_info.cold.1+0x20/0x20
[  396.291739] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  396.317864]  warn_alloc.cold.116+0xb7/0x1bd
[  396.321457] lowmem_reserve[]: 0 0 3503 3503
[  396.326031]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  396.331192] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  396.358680]  ? lock_downgrade+0x900/0x900
[  396.362991] lowmem_reserve[]: 0 0 0 0
[  396.367308]  ? trace_hardirqs_off+0xb8/0x310
[  396.372117] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  396.401255]  ? trace_hardirqs_off+0xb8/0x310
[  396.405372] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  396.409175]  __alloc_pages_slowpath+0x26e8/0x2e10
[  396.413552] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  396.427096]  ? warn_alloc+0x120/0x120
[  396.431460] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  396.446352]  ? print_usage_bug+0xc0/0xc0
[  396.451168] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  396.466318]  ? warn_alloc+0x120/0x120
[  396.470090] 4484 total pagecache pages
[  396.478918]  ? warn_alloc+0x120/0x120
[  396.482956] 0 pages in swap cache
[  396.491520]  ? print_usage_bug+0xc0/0xc0
[  396.495291] Swap cache stats: add 0, delete 0, find 0/0
[  396.499175]  ? kvm_clock_read+0x18/0x30
[  396.502946] Free swap  = 0kB
[  396.506394]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  396.510427] Total swap = 0kB
[  396.515771]  ? print_usage_bug+0xc0/0xc0
[  396.519714] 1965979 pages RAM
[  396.522721]  ? __lock_acquire+0x62f/0x4c20
[  396.527798] 0 pages HighMem/MovableOnly
[  396.530820]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.534863] 342854 pages reserved
[  396.537971]  ? should_fail+0x22d/0xd01
[  396.542264] 0 pages cma reserved
[  396.546328]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.551912] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  396.555305]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.559238] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  396.562522]  ? __lock_acquire+0x62f/0x4c20
[  396.567767] syz-fuzzer cpuset=/ mems_allowed=0
[  396.574247]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.603489]  ? __lock_acquire+0x62f/0x4c20
[  396.607720]  ? should_fail+0x22d/0xd01
[  396.611606]  ? rcu_irq_exit+0x1a2/0x390
[  396.615585]  ? mark_held_locks+0x130/0x130
[  396.619818]  ? mark_held_locks+0x130/0x130
[  396.624057]  ? mark_held_locks+0xc7/0x130
[  396.628211]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  396.633224]  ? zap_class+0x640/0x640
[  396.636944]  ? print_usage_bug+0xc0/0xc0
[  396.641017]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.646557]  ? check_preemption_disabled+0x48/0x280
[  396.651596]  ? __lock_is_held+0xb5/0x140
[  396.655656]  __alloc_pages_nodemask+0xa80/0xde0
[  396.660319]  ? zap_class+0x640/0x640
[  396.664034]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  396.669061]  ? find_held_lock+0x36/0x1c0
[  396.673127]  ? ____cache_alloc_node+0x1c7/0x1e0
[  396.677792]  ? lock_downgrade+0x900/0x900
[  396.681946]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.687485]  cache_grow_begin+0xa5/0x8c0
[  396.691542]  ? do_raw_spin_unlock+0xa7/0x330
[  396.695953]  fallback_alloc+0x204/0x2e0
[  396.699940]  ____cache_alloc_node+0x1c7/0x1e0
[  396.704437]  kmem_cache_alloc_node+0xe3/0x730
[  396.708934]  ? ipv6_get_ifaddr+0x42e/0x620
[  396.713172]  __alloc_skb+0x119/0x770
[  396.716879]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.722160]  ? netdev_alloc_frag+0x1f0/0x1f0
[  396.726562]  ? lock_downgrade+0x900/0x900
[  396.730713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.736248]  ? refcount_sub_and_test_checked+0x203/0x310
[  396.741700]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  396.747149]  ? addrconf_rs_timer+0x690/0x690
[  396.751564]  ndisc_alloc_skb+0x144/0x340
[  396.755624]  ndisc_send_rs+0x331/0x6e0
[  396.759511]  addrconf_rs_timer+0x314/0x690
[  396.763747]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.767984]  call_timer_fn+0x272/0x920
[  396.771868]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.776099]  ? process_timeout+0x40/0x40
[  396.780165]  ? __run_timers+0x7da/0xc70
[  396.784138]  ? _raw_spin_unlock_irq+0x27/0x80
[  396.788670]  ? _raw_spin_unlock_irq+0x27/0x80
[  396.793163]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.797399]  ? lockdep_hardirqs_on+0x296/0x5b0
[  396.801979]  ? trace_hardirqs_on+0xbd/0x310
[  396.806299]  ? kasan_check_read+0x11/0x20
[  396.810437]  ? __run_timers+0x7da/0xc70
[  396.814407]  ? trace_hardirqs_off_caller+0x310/0x310
[  396.819512]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.823746]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  396.827984]  __run_timers+0x7e5/0xc70
[  396.831793]  ? timer_fixup_init+0x70/0x70
[  396.835940]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  396.840957]  ? zap_class+0x640/0x640
[  396.844673]  ? enqueue_hrtimer+0x1a5/0x560
[  396.848918]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  396.854113]  ? find_held_lock+0x36/0x1c0
[  396.858178]  ? zap_class+0x640/0x640
[  396.861899]  ? pvclock_read_flags+0x160/0x160
[  396.866395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.871935]  ? check_preemption_disabled+0x48/0x280
[  396.876956]  ? __lock_is_held+0xb5/0x140
[  396.881018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.886553]  ? check_preemption_disabled+0x48/0x280
[  396.891571]  run_timer_softirq+0x52/0xb0
[  396.896015]  ? rcu_read_lock_sched_held+0x14f/0x180
[  396.901047]  __do_softirq+0x308/0xb7e
[  396.904938]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  396.909438]  ? lock_downgrade+0x900/0x900
[  396.913585]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  396.918692]  ? pvclock_read_flags+0x160/0x160
[  396.923189]  ? lapic_next_event+0x5a/0x90
[  396.927333]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.932880]  ? kvm_clock_read+0x18/0x30
[  396.936858]  ? kvm_sched_clock_read+0x9/0x20
[  396.941281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.946815]  ? check_preemption_disabled+0x48/0x280
[  396.951925]  irq_exit+0x17f/0x1c0
[  396.955376]  smp_apic_timer_interrupt+0x1cb/0x760
[  396.960216]  ? smp_reschedule_interrupt+0x109/0x650
[  396.965230]  ? smp_call_function_single_interrupt+0x650/0x650
[  396.971108]  ? interrupt_entry+0xb5/0xc0
[  396.975166]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.980175]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.985191]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.990031]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.995042]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.000054]  ? task_prio+0x50/0x50
[  397.003591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.009131]  ? check_preemption_disabled+0x48/0x280
[  397.014151]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.018996]  apic_timer_interrupt+0xf/0x20
[  397.023238]  </IRQ>
[  397.025471] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  397.030399] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  397.049289] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  397.056987] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  397.064763] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  397.072026] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  397.079299] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  397.086587] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  397.093903]  skb_clone+0x1bb/0x500
[  397.097440]  ? finish_task_switch+0x2f4/0x910
[  397.101929]  ? skb_split+0x11e0/0x11e0
[  397.105818]  ? preempt_notifier_register+0x200/0x200
[  397.110925]  ? __switch_to_asm+0x34/0x70
[  397.114979]  ? __switch_to_asm+0x34/0x70
[  397.119118]  ? __switch_to_asm+0x40/0x70
[  397.123171]  ? __switch_to_asm+0x34/0x70
[  397.127222]  ? __switch_to_asm+0x40/0x70
[  397.131281]  ? __switch_to_asm+0x34/0x70
[  397.135343]  ? __switch_to_asm+0x40/0x70
[  397.139397]  ? __switch_to_asm+0x34/0x70
[  397.143451]  ? __switch_to_asm+0x34/0x70
[  397.147519]  ? __switch_to_asm+0x40/0x70
[  397.151577]  ? __switch_to_asm+0x34/0x70
[  397.155645]  bpf_clone_redirect+0xb9/0x490
[  397.159879]  ? __schedule+0x8d7/0x21d0
[  397.163898]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  397.168927]  ? __sched_text_start+0x8/0x8
[  397.173087]  ? retint_kernel+0x2d/0x2d
[  397.177002]  ? find_held_lock+0x36/0x1c0
[  397.181083]  ? lock_acquire+0x1ed/0x520
[  397.185054]  ? bpf_test_run+0x3cb/0x780
[  397.189028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.194580]  ? check_preemption_disabled+0x48/0x280
[  397.199600]  ? kasan_check_read+0x11/0x20
[  397.203742]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.209019]  ? rcu_softirq_qs+0x20/0x20
[  397.212988]  ? preempt_schedule+0x4d/0x60
[  397.217133]  ? ___preempt_schedule+0x16/0x18
[  397.221546]  ? bpf_test_run+0x25d/0x780
[  397.225528]  ? netlink_diag_dump+0x2a0/0x2a0
[  397.229938]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.235471]  ? bpf_test_init.isra.10+0x70/0x100
[  397.240144]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  397.244908]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  397.249748]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  397.255301]  ? fput+0x130/0x1a0
[  397.258592]  ? __bpf_prog_get+0x9b/0x290
[  397.262655]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  397.267518]  ? bpf_prog_test_run+0x130/0x1a0
[  397.271928]  ? __x64_sys_bpf+0x3d8/0x520
[  397.275986]  ? bpf_prog_get+0x20/0x20
[  397.279815]  ? do_syscall_64+0x1b9/0x820
[  397.283873]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  397.289232]  ? syscall_return_slowpath+0x5e0/0x5e0
[  397.294151]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.298989]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.304002]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  397.309027]  ? prepare_exit_to_usermode+0x291/0x3b0
[  397.314043]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.318892]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  397.324265] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  397.324344] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  397.331281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  397.331286] Call Trace:
[  397.331292]  <IRQ>
[  397.331316]  dump_stack+0x244/0x39d
[  397.331335]  ? dump_stack_print_info.cold.1+0x20/0x20
[  397.337877] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  397.347151]  warn_alloc.cold.116+0xb7/0x1bd
[  397.349699] syz-executor2 cpuset=syz2 mems_allowed=0
[  397.351837]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  397.385401]  ? lock_downgrade+0x900/0x900
[  397.389553]  ? trace_hardirqs_off+0xb8/0x310
[  397.393964]  ? trace_hardirqs_off+0xb8/0x310
[  397.398378]  __alloc_pages_slowpath+0x26e8/0x2e10
[  397.403244]  ? warn_alloc+0x120/0x120
[  397.407043]  ? print_usage_bug+0xc0/0xc0
[  397.411097]  ? warn_alloc+0x120/0x120
[  397.414899]  ? warn_alloc+0x120/0x120
[  397.418695]  ? print_usage_bug+0xc0/0xc0
[  397.422777]  ? kvm_clock_read+0x18/0x30
[  397.426747]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  397.431768]  ? print_usage_bug+0xc0/0xc0
[  397.435824]  ? __lock_acquire+0x62f/0x4c20
[  397.440062]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.445592]  ? should_fail+0x22d/0xd01
[  397.449475]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.454781]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.459879]  ? __lock_acquire+0x62f/0x4c20
[  397.464112]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.469206]  ? __lock_acquire+0x62f/0x4c20
[  397.473434]  ? should_fail+0x22d/0xd01
[  397.477320]  ? rcu_irq_exit+0x1a2/0x390
[  397.481311]  ? mark_held_locks+0x130/0x130
[  397.485548]  ? mark_held_locks+0x130/0x130
[  397.489780]  ? mark_held_locks+0xc7/0x130
[  397.493924]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  397.498933]  ? zap_class+0x640/0x640
[  397.502641]  ? print_usage_bug+0xc0/0xc0
[  397.506704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.512239]  ? check_preemption_disabled+0x48/0x280
[  397.517262]  ? __lock_is_held+0xb5/0x140
[  397.521402]  __alloc_pages_nodemask+0xa80/0xde0
[  397.526063]  ? zap_class+0x640/0x640
[  397.529860]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  397.534884]  ? find_held_lock+0x36/0x1c0
[  397.538954]  ? ____cache_alloc_node+0x1c7/0x1e0
[  397.543619]  ? lock_downgrade+0x900/0x900
[  397.547788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.553326]  cache_grow_begin+0xa5/0x8c0
[  397.557380]  ? do_raw_spin_unlock+0xa7/0x330
[  397.561787]  fallback_alloc+0x204/0x2e0
[  397.565764]  ____cache_alloc_node+0x1c7/0x1e0
[  397.570258]  kmem_cache_alloc_node+0xe3/0x730
[  397.574869]  ? ipv6_get_ifaddr+0x42e/0x620
[  397.579107]  __alloc_skb+0x119/0x770
[  397.582818]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.588095]  ? netdev_alloc_frag+0x1f0/0x1f0
[  397.592515]  ? lock_downgrade+0x900/0x900
[  397.596664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.602195]  ? refcount_sub_and_test_checked+0x203/0x310
[  397.607730]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  397.613176]  ? addrconf_rs_timer+0x690/0x690
[  397.617592]  ndisc_alloc_skb+0x144/0x340
[  397.621655]  ndisc_send_rs+0x331/0x6e0
[  397.625548]  addrconf_rs_timer+0x314/0x690
[  397.629805]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.634051]  call_timer_fn+0x272/0x920
[  397.637939]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.642170]  ? process_timeout+0x40/0x40
[  397.646234]  ? mark_held_locks+0xc7/0x130
[  397.650379]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.654870]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.659357]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.663602]  ? lockdep_hardirqs_on+0x296/0x5b0
[  397.668200]  ? trace_hardirqs_on+0xbd/0x310
[  397.672520]  ? kasan_check_read+0x11/0x20
[  397.676664]  ? __run_timers+0x7da/0xc70
[  397.680642]  ? trace_hardirqs_off_caller+0x310/0x310
[  397.685751]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.689994]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.694221]  __run_timers+0x7e5/0xc70
[  397.698022]  ? timer_fixup_init+0x70/0x70
[  397.702164]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  397.707173]  ? zap_class+0x640/0x640
[  397.710885]  ? print_usage_bug+0xc0/0xc0
[  397.714944]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  397.720139]  ? find_held_lock+0x36/0x1c0
[  397.724200]  ? zap_class+0x640/0x640
[  397.727913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.733447]  ? check_preemption_disabled+0x48/0x280
[  397.738553]  ? __lock_is_held+0xb5/0x140
[  397.742612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.748146]  ? check_preemption_disabled+0x48/0x280
[  397.753162]  run_timer_softirq+0x52/0xb0
[  397.757220]  ? rcu_read_lock_sched_held+0x14f/0x180
[  397.762242]  __do_softirq+0x308/0xb7e
[  397.766049]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  397.770541]  ? lock_downgrade+0x900/0x900
[  397.774691]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  397.779884]  ? pvclock_read_flags+0x160/0x160
[  397.784396]  ? lapic_next_event+0x5a/0x90
[  397.788544]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.794084]  ? kvm_clock_read+0x18/0x30
[  397.798058]  ? kvm_sched_clock_read+0x9/0x20
[  397.802466]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.808001]  ? check_preemption_disabled+0x48/0x280
[  397.813024]  irq_exit+0x17f/0x1c0
[  397.816472]  smp_apic_timer_interrupt+0x1cb/0x760
[  397.821314]  ? smp_call_function_single_interrupt+0x650/0x650
[  397.827196]  ? interrupt_entry+0xb5/0xc0
[  397.831252]  ? trace_hardirqs_off_caller+0xbb/0x310
[  397.836277]  ? trace_hardirqs_off_caller+0xbb/0x310
[  397.841301]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.846141]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.851150]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.856159]  ? task_prio+0x50/0x50
[  397.859698]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.865233]  ? check_preemption_disabled+0x48/0x280
[  397.870252]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.875104]  apic_timer_interrupt+0xf/0x20
[  397.879341]  </IRQ>
[  397.881579] RIP: 0010:dump_stack+0x358/0x39d
[  397.885986] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  397.904878] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  397.912578] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  397.919839] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  397.927104] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  397.934368] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  397.941647] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  397.948924]  ? dump_stack+0x34f/0x39d
[  397.952731]  ? dump_stack_print_info.cold.1+0x20/0x20
[  397.957919]  ? mark_held_locks+0x130/0x130
[  397.962150]  ? mark_held_locks+0x130/0x130
[  397.966387]  dump_header+0x27b/0xf72
[  397.970108]  ? pagefault_out_of_memory+0x197/0x197
[  397.975035]  ? __lock_acquire+0x62f/0x4c20
[  397.979291]  ? percpu_ref_get_many+0x240/0x240
[  397.983963]  ? print_usage_bug+0xc0/0xc0
[  397.988022]  ? zap_class+0x640/0x640
[  397.991734]  ? print_usage_bug+0xc0/0xc0
[  397.995787]  ? print_usage_bug+0xc0/0xc0
[  397.999846]  ? zap_class+0x640/0x640
[  398.003569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.009103]  ? find_held_lock+0x36/0x1c0
[  398.013170]  ? mark_held_locks+0xc7/0x130
[  398.017321]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  398.022432]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  398.027533]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  398.032113]  ? trace_hardirqs_on+0xbd/0x310
[  398.036440]  ? kasan_check_read+0x11/0x20
[  398.040585]  ? ___ratelimit+0x3b4/0x672
[  398.044554]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.049656]  ? trace_hardirqs_on+0x310/0x310
[  398.054078]  ? lock_downgrade+0x900/0x900
[  398.058238]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  398.063348]  ? ___ratelimit+0x3b9/0x672
[  398.067325]  ? idr_get_free+0xf70/0xf70
[  398.071295]  ? find_held_lock+0x36/0x1c0
[  398.075364]  oom_kill_process.cold.27+0x10/0x903
[  398.080111]  ? zap_class+0x640/0x640
[  398.083819]  ? check_preemption_disabled+0x48/0x280
[  398.088836]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.093786]  ? kasan_check_read+0x11/0x20
[  398.097928]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.103199]  ? oom_evaluate_task+0x540/0x540
[  398.107605]  ? find_held_lock+0x36/0x1c0
[  398.111667]  ? out_of_memory+0x974/0x1430
[  398.115819]  ? lock_downgrade+0x900/0x900
[  398.120065]  ? check_preemption_disabled+0x48/0x280
[  398.125275]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.130197]  ? kasan_check_read+0x11/0x20
[  398.134337]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.139610]  ? rcu_softirq_qs+0x20/0x20
[  398.143581]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.149113]  ? oom_evaluate_task+0x302/0x540
[  398.153520]  out_of_memory+0xa84/0x1430
[  398.157498]  ? oom_killer_disable+0x3a0/0x3a0
[  398.161988]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  398.166916]  ? __ww_mutex_check_waiters+0x160/0x160
[  398.171939]  __alloc_pages_slowpath+0x2354/0x2e10
[  398.176808]  ? warn_alloc+0x120/0x120
[  398.180602]  ? mark_held_locks+0x130/0x130
[  398.184839]  ? find_get_entry+0xaae/0x1120
[  398.189094]  ? filemap_map_pages+0x1a20/0x1a20
[  398.193676]  ? zap_class+0x640/0x640
[  398.197393]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.202929]  ? check_preemption_disabled+0x48/0x280
[  398.207942]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.213472]  ? should_fail+0x22d/0xd01
[  398.217359]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.222463]  ? zap_class+0x640/0x640
[  398.226195]  ? __lock_is_held+0xb5/0x140
[  398.230276]  ? mark_held_locks+0x130/0x130
[  398.234510]  ? lock_release+0xa00/0xa00
[  398.238480]  ? perf_trace_sched_process_exec+0x860/0x860
[  398.243923]  ? xa_load+0x2ba/0x460
[  398.247462]  ? lock_downgrade+0x900/0x900
[  398.251609]  ? __might_sleep+0x95/0x190
[  398.255583]  __alloc_pages_nodemask+0xa80/0xde0
[  398.260258]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  398.265277]  ? __page_cache_alloc+0x191/0x5c0
[  398.269769]  ? xa_load+0x2e1/0x460
[  398.273308]  ? xa_clear_mark+0x40/0x40
[  398.277194]  ? zap_class+0x640/0x640
[  398.280910]  ? zap_class+0x640/0x640
[  398.284625]  ? zap_class+0x640/0x640
[  398.288334]  ? __do_page_cache_readahead+0x663/0x810
[  398.293439]  ? find_held_lock+0x36/0x1c0
[  398.297505]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  398.303046]  alloc_pages_current+0x173/0x350
[  398.307460]  __page_cache_alloc+0x38c/0x5c0
[  398.311783]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.316711]  ? kasan_check_read+0x11/0x20
[  398.320858]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.326137]  ? generic_perform_write+0x6a0/0x6a0
[  398.330892]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.336433]  ? check_preemption_disabled+0x48/0x280
[  398.341458]  filemap_fault+0x1595/0x25f0
[  398.345534]  ? __lock_page_or_retry+0xa00/0xa00
[  398.350204]  ? mark_held_locks+0x130/0x130
[  398.354460]  ? filemap_map_pages+0xd6b/0x1a20
[  398.358961]  ? lock_downgrade+0x900/0x900
[  398.363111]  ? check_preemption_disabled+0x48/0x280
[  398.368133]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.373064]  ? kasan_check_read+0x11/0x20
[  398.377209]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.382502]  ? rcu_softirq_qs+0x20/0x20
[  398.386495]  ? filemap_map_pages+0xd92/0x1a20
[  398.391003]  ? find_get_entries_tag+0x1400/0x1400
[  398.395847]  ? find_held_lock+0x36/0x1c0
[  398.399926]  ? lock_acquire+0x1ed/0x520
[  398.403902]  ? ext4_filemap_fault+0x7a/0xad
[  398.408239]  ? lock_release+0xa00/0xa00
[  398.412214]  ? perf_trace_sched_process_exec+0x860/0x860
[  398.417679]  ? print_usage_bug+0xc0/0xc0
[  398.421753]  ? down_read+0x8d/0x120
[  398.425383]  ? ext4_filemap_fault+0x7a/0xad
[  398.429710]  ? __down_interruptible+0x700/0x700
[  398.434382]  ? find_held_lock+0x36/0x1c0
[  398.438446]  ext4_filemap_fault+0x82/0xad
[  398.442595]  __do_fault+0x100/0x6b0
[  398.446232]  ? lock_downgrade+0x900/0x900
[  398.450383]  ? pmd_devmap_trans_unstable+0x220/0x220
[  398.455494]  ? kasan_check_read+0x11/0x20
[  398.459639]  ? do_raw_spin_unlock+0xa7/0x330
[  398.464045]  ? do_raw_spin_trylock+0x270/0x270
[  398.468641]  __handle_mm_fault+0x3ea0/0x5be0
[  398.473049]  ? perf_trace_lock+0x7a0/0x7a0
[  398.477293]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  398.482141]  ? __switch_to_asm+0x34/0x70
[  398.486199]  ? __switch_to_asm+0x34/0x70
[  398.490292]  ? zap_class+0x640/0x640
[  398.494007]  ? zap_class+0x640/0x640
[  398.497720]  ? __x64_sys_futex+0x53e/0x6a0
[  398.501957]  ? find_held_lock+0x36/0x1c0
[  398.506031]  ? handle_mm_fault+0x42a/0xc70
[  398.510278]  ? lock_downgrade+0x900/0x900
[  398.514429]  ? check_preemption_disabled+0x48/0x280
[  398.519450]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.524378]  ? kasan_check_read+0x11/0x20
[  398.528524]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.533801]  ? rcu_softirq_qs+0x20/0x20
[  398.537774]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.542881]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.548425]  ? check_preemption_disabled+0x48/0x280
[  398.553450]  handle_mm_fault+0x54f/0xc70
[  398.557513]  ? __handle_mm_fault+0x5be0/0x5be0
[  398.562368]  ? find_vma+0x34/0x190
[  398.565999]  __do_page_fault+0x5e8/0xe60
[  398.570058]  ? trace_hardirqs_off+0xb8/0x310
[  398.574479]  do_page_fault+0xf2/0x7e0
[  398.578287]  ? vmalloc_sync_all+0x30/0x30
[  398.582434]  ? error_entry+0x70/0xd0
[  398.586151]  ? trace_hardirqs_off_caller+0xbb/0x310
[  398.591167]  ? trace_hardirqs_on_caller+0xc0/0x310
[  398.596097]  ? syscall_return_slowpath+0x5e0/0x5e0
[  398.601027]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.605871]  ? trace_hardirqs_on_caller+0x310/0x310
[  398.610886]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  398.616347]  ? prepare_exit_to_usermode+0x291/0x3b0
[  398.621362]  ? page_fault+0x8/0x30
[  398.624903]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.629746]  ? page_fault+0x8/0x30
[  398.633286]  page_fault+0x1e/0x30
[  398.636736] RIP: 0033:0x404068
[  398.639938] Code: Bad RIP value.
[  398.643302] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  398.648667] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  398.655933] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  398.663210] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  398.670479] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  398.677834] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  398.685124] warn_alloc_show_mem: 1 callbacks suppressed
[  398.685134] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  398.685135] Mem-Info:
[  398.685167] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  398.685167]  active_file:13 inactive_file:13 isolated_file:0
[  398.685167]  unevictable:0 dirty:0 writeback:0 unstable:0
[  398.685167]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  398.685167]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  398.685167]  free:13747 free_pcp:348 free_cma:0
[  398.690495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  398.690503] Call Trace:
[  398.697866] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  398.700264]  <IRQ>
[  398.733330] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  398.742685]  dump_stack+0x244/0x39d
[  398.745248] lowmem_reserve[]: 0 2818 6321 6321
[  398.773088]  ? dump_stack_print_info.cold.1+0x20/0x20
[  398.775226] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  398.801345]  warn_alloc.cold.116+0xb7/0x1bd
[  398.804935] lowmem_reserve[]: 0 0 3503 3503
[  398.809513]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  398.814677] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  398.842175]  ? lock_downgrade+0x900/0x900
[  398.846477] lowmem_reserve[]: 0 0 0 0
[  398.850803]  ? trace_hardirqs_off+0xb8/0x310
[  398.855617] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  398.884765]  ? trace_hardirqs_off+0xb8/0x310
[  398.888883] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  398.892683]  __alloc_pages_slowpath+0x26e8/0x2e10
[  398.897535] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  398.911097]  ? warn_alloc+0x120/0x120
[  398.915456] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  398.930358]  ? print_usage_bug+0xc0/0xc0
[  398.935191] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  398.950348]  ? warn_alloc+0x120/0x120
[  398.954124] 4484 total pagecache pages
[  398.962955]  ? warn_alloc+0x120/0x120
[  398.966997] 0 pages in swap cache
[  398.975561]  ? print_usage_bug+0xc0/0xc0
[  398.979341] Swap cache stats: add 0, delete 0, find 0/0
[  398.983226]  ? kvm_clock_read+0x18/0x30
[  398.987003] Free swap  = 0kB
[  398.990449]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  398.994486] Total swap = 0kB
[  398.999842]  ? print_usage_bug+0xc0/0xc0
[  399.003791] 1965979 pages RAM
[  399.006802]  ? __lock_acquire+0x62f/0x4c20
[  399.011787] 0 pages HighMem/MovableOnly
[  399.011794] 342854 pages reserved
[  399.014809]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.018838] 0 pages cma reserved
[  399.018927] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  399.021944]  ? should_fail+0x22d/0xd01
[  399.026216] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  399.030127]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.033559] syz-fuzzer cpuset=/ mems_allowed=0
[  399.039091]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.078438]  ? __lock_acquire+0x62f/0x4c20
[  399.082681]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.087785]  ? __lock_acquire+0x62f/0x4c20
[  399.092017]  ? should_fail+0x22d/0xd01
[  399.095905]  ? rcu_irq_exit+0x1a2/0x390
[  399.099889]  ? mark_held_locks+0x130/0x130
[  399.104127]  ? mark_held_locks+0x130/0x130
[  399.108375]  ? mark_held_locks+0xc7/0x130
[  399.112525]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  399.117540]  ? zap_class+0x640/0x640
[  399.121254]  ? print_usage_bug+0xc0/0xc0
[  399.125324]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.130865]  ? check_preemption_disabled+0x48/0x280
[  399.135890]  ? __lock_is_held+0xb5/0x140
[  399.139960]  __alloc_pages_nodemask+0xa80/0xde0
[  399.144631]  ? zap_class+0x640/0x640
[  399.148355]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  399.153389]  ? find_held_lock+0x36/0x1c0
[  399.157463]  ? ____cache_alloc_node+0x1c7/0x1e0
[  399.162137]  ? lock_downgrade+0x900/0x900
[  399.166302]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.171845]  cache_grow_begin+0xa5/0x8c0
[  399.175909]  ? do_raw_spin_unlock+0xa7/0x330
[  399.180327]  fallback_alloc+0x204/0x2e0
[  399.184314]  ____cache_alloc_node+0x1c7/0x1e0
[  399.188815]  kmem_cache_alloc_node+0xe3/0x730
[  399.193313]  ? ipv6_get_ifaddr+0x42e/0x620
[  399.197560]  __alloc_skb+0x119/0x770
[  399.201279]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.206561]  ? netdev_alloc_frag+0x1f0/0x1f0
[  399.210973]  ? lock_downgrade+0x900/0x900
[  399.215130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.220677]  ? refcount_sub_and_test_checked+0x203/0x310
[  399.226137]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  399.231596]  ? addrconf_rs_timer+0x690/0x690
[  399.236016]  ndisc_alloc_skb+0x144/0x340
[  399.240081]  ndisc_send_rs+0x331/0x6e0
[  399.243975]  addrconf_rs_timer+0x314/0x690
[  399.248219]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.252468]  call_timer_fn+0x272/0x920
[  399.256355]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.261027]  ? process_timeout+0x40/0x40
[  399.265098]  ? __run_timers+0x7da/0xc70
[  399.269076]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.273569]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.278061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.282298]  ? lockdep_hardirqs_on+0x296/0x5b0
[  399.286882]  ? trace_hardirqs_on+0xbd/0x310
[  399.291208]  ? kasan_check_read+0x11/0x20
[  399.295353]  ? __run_timers+0x7da/0xc70
[  399.299329]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.304436]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.308676]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.312914]  __run_timers+0x7e5/0xc70
[  399.316731]  ? timer_fixup_init+0x70/0x70
[  399.320881]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  399.325896]  ? zap_class+0x640/0x640
[  399.329613]  ? enqueue_hrtimer+0x1a5/0x560
[  399.333849]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  399.339052]  ? find_held_lock+0x36/0x1c0
[  399.343117]  ? zap_class+0x640/0x640
[  399.346846]  ? pvclock_read_flags+0x160/0x160
[  399.351347]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.356886]  ? check_preemption_disabled+0x48/0x280
[  399.361910]  ? __lock_is_held+0xb5/0x140
[  399.365973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.371509]  ? check_preemption_disabled+0x48/0x280
[  399.376532]  run_timer_softirq+0x52/0xb0
[  399.380594]  ? rcu_read_lock_sched_held+0x14f/0x180
[  399.385614]  __do_softirq+0x308/0xb7e
[  399.389448]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  399.393947]  ? lock_downgrade+0x900/0x900
[  399.398103]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  399.403218]  ? pvclock_read_flags+0x160/0x160
[  399.407725]  ? lapic_next_event+0x5a/0x90
[  399.411879]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.417425]  ? kvm_clock_read+0x18/0x30
[  399.421399]  ? kvm_sched_clock_read+0x9/0x20
[  399.425808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.431350]  ? check_preemption_disabled+0x48/0x280
[  399.436380]  irq_exit+0x17f/0x1c0
[  399.439834]  smp_apic_timer_interrupt+0x1cb/0x760
[  399.444679]  ? smp_reschedule_interrupt+0x109/0x650
[  399.449709]  ? smp_call_function_single_interrupt+0x650/0x650
[  399.455595]  ? interrupt_entry+0xb5/0xc0
[  399.459661]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.464679]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.469715]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.474557]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.479573]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.484629]  ? task_prio+0x50/0x50
[  399.488179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.493718]  ? check_preemption_disabled+0x48/0x280
[  399.498741]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.503594]  apic_timer_interrupt+0xf/0x20
[  399.507822]  </IRQ>
[  399.510060] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  399.514996] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  399.534086] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  399.541793] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  399.549059] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  399.556326] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  399.563591] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  399.570859] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  399.578176]  skb_clone+0x1bb/0x500
[  399.581720]  ? finish_task_switch+0x2f4/0x910
[  399.586219]  ? skb_split+0x11e0/0x11e0
[  399.590109]  ? preempt_notifier_register+0x200/0x200
[  399.595220]  ? __switch_to_asm+0x34/0x70
[  399.599365]  ? __switch_to_asm+0x34/0x70
[  399.603423]  ? __switch_to_asm+0x40/0x70
[  399.607481]  ? __switch_to_asm+0x34/0x70
[  399.611538]  ? __switch_to_asm+0x40/0x70
[  399.615597]  ? __switch_to_asm+0x34/0x70
[  399.619655]  ? __switch_to_asm+0x40/0x70
[  399.623719]  ? __switch_to_asm+0x34/0x70
[  399.627786]  ? __switch_to_asm+0x34/0x70
[  399.631845]  ? __switch_to_asm+0x40/0x70
[  399.635904]  ? __switch_to_asm+0x34/0x70
[  399.639976]  bpf_clone_redirect+0xb9/0x490
[  399.644217]  ? __schedule+0x8d7/0x21d0
[  399.648109]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  399.653157]  ? __sched_text_start+0x8/0x8
[  399.657308]  ? retint_kernel+0x2d/0x2d
[  399.661209]  ? find_held_lock+0x36/0x1c0
[  399.665283]  ? lock_acquire+0x1ed/0x520
[  399.669257]  ? bpf_test_run+0x3cb/0x780
[  399.673243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.678787]  ? check_preemption_disabled+0x48/0x280
[  399.683809]  ? kasan_check_read+0x11/0x20
[  399.688145]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.693425]  ? rcu_softirq_qs+0x20/0x20
[  399.697407]  ? preempt_schedule+0x4d/0x60
[  399.701555]  ? ___preempt_schedule+0x16/0x18
[  399.705974]  ? bpf_test_run+0x25d/0x780
[  399.709963]  ? netlink_diag_dump+0x2a0/0x2a0
[  399.714373]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.719911]  ? bpf_test_init.isra.10+0x70/0x100
[  399.724586]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  399.729354]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  399.734199]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  399.739746]  ? fput+0x130/0x1a0
[  399.743028]  ? __bpf_prog_get+0x9b/0x290
[  399.747092]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  399.751945]  ? bpf_prog_test_run+0x130/0x1a0
[  399.756360]  ? __x64_sys_bpf+0x3d8/0x520
[  399.760419]  ? bpf_prog_get+0x20/0x20
[  399.764325]  ? do_syscall_64+0x1b9/0x820
[  399.768386]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  399.773751]  ? syscall_return_slowpath+0x5e0/0x5e0
[  399.778684]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.783531]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.788548]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  399.793570]  ? prepare_exit_to_usermode+0x291/0x3b0
[  399.798592]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.803445]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  399.808830] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  399.808899] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  399.816016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  399.816023] Call Trace:
[  399.822582] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  399.831837]  <IRQ>
[  399.834404] syz-executor2 cpuset=syz2 mems_allowed=0
[  399.844882]  dump_stack+0x244/0x39d
[  399.855729]  ? dump_stack_print_info.cold.1+0x20/0x20
[  399.860930]  warn_alloc.cold.116+0xb7/0x1bd
[  399.865251]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  399.870097]  ? lock_downgrade+0x900/0x900
[  399.874271]  ? trace_hardirqs_off+0xb8/0x310
[  399.878693]  ? trace_hardirqs_off+0xb8/0x310
[  399.883124]  __alloc_pages_slowpath+0x26e8/0x2e10
[  399.887997]  ? warn_alloc+0x120/0x120
[  399.891802]  ? print_usage_bug+0xc0/0xc0
[  399.895863]  ? warn_alloc+0x120/0x120
[  399.899664]  ? zap_class+0x640/0x640
[  399.903378]  ? warn_alloc+0x120/0x120
[  399.907193]  ? print_usage_bug+0xc0/0xc0
[  399.911263]  ? print_usage_bug+0xc0/0xc0
[  399.915327]  ? __lock_acquire+0x62f/0x4c20
[  399.919590]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.925135]  ? should_fail+0x22d/0xd01
[  399.929028]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.934142]  ? __lock_acquire+0x62f/0x4c20
[  399.938385]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.943489]  ? __lock_acquire+0x62f/0x4c20
[  399.947720]  ? should_fail+0x22d/0xd01
[  399.951609]  ? find_held_lock+0x36/0x1c0
[  399.955676]  ? mark_held_locks+0x130/0x130
[  399.959917]  ? mark_held_locks+0x130/0x130
[  399.964156]  ? zap_class+0x640/0x640
[  399.967869]  ? zap_class+0x640/0x640
[  399.971615]  ? print_usage_bug+0xc0/0xc0
[  399.975673]  ? do_raw_spin_unlock+0xa7/0x330
[  399.980082]  ? zap_class+0x640/0x640
[  399.983806]  ? print_usage_bug+0xc0/0xc0
[  399.987867]  ? wq_watchdog_touch+0x9c/0xfe
[  399.992116]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.997660]  ? check_preemption_disabled+0x48/0x280
[  400.002686]  ? __lock_is_held+0xb5/0x140
[  400.006754]  __alloc_pages_nodemask+0xa80/0xde0
[  400.011426]  ? zap_class+0x640/0x640
[  400.015153]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  400.020186]  ? find_held_lock+0x36/0x1c0
[  400.024258]  ? ____cache_alloc_node+0x1c7/0x1e0
[  400.028928]  ? lock_downgrade+0x900/0x900
[  400.033083]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.038634]  cache_grow_begin+0xa5/0x8c0
[  400.042698]  ? do_raw_spin_unlock+0xa7/0x330
[  400.047123]  fallback_alloc+0x204/0x2e0
[  400.051120]  ____cache_alloc_node+0x1c7/0x1e0
[  400.055623]  kmem_cache_alloc_node+0xe3/0x730
[  400.060127]  ? ipv6_get_ifaddr+0x42e/0x620
[  400.064407]  __alloc_skb+0x119/0x770
[  400.068124]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.073410]  ? netdev_alloc_frag+0x1f0/0x1f0
[  400.077820]  ? lock_downgrade+0x900/0x900
[  400.081974]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.087514]  ? refcount_sub_and_test_checked+0x203/0x310
[  400.092967]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  400.098416]  ? addrconf_rs_timer+0x690/0x690
[  400.102838]  ndisc_alloc_skb+0x144/0x340
[  400.106903]  ndisc_send_rs+0x331/0x6e0
[  400.110799]  addrconf_rs_timer+0x314/0x690
[  400.115041]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.119287]  call_timer_fn+0x272/0x920
[  400.123205]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.127439]  ? process_timeout+0x40/0x40
[  400.131508]  ? mark_held_locks+0xc7/0x130
[  400.135657]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.140152]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.144646]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.148893]  ? lockdep_hardirqs_on+0x296/0x5b0
[  400.153480]  ? trace_hardirqs_on+0xbd/0x310
[  400.157802]  ? kasan_check_read+0x11/0x20
[  400.161951]  ? __run_timers+0x7da/0xc70
[  400.165929]  ? trace_hardirqs_off_caller+0x310/0x310
[  400.171036]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.175278]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.179509]  __run_timers+0x7e5/0xc70
[  400.183323]  ? timer_fixup_init+0x70/0x70
[  400.187472]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  400.192490]  ? zap_class+0x640/0x640
[  400.196208]  ? print_usage_bug+0xc0/0xc0
[  400.200277]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  400.205477]  ? find_held_lock+0x36/0x1c0
[  400.209543]  ? zap_class+0x640/0x640
[  400.213268]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.218806]  ? check_preemption_disabled+0x48/0x280
[  400.223830]  ? __lock_is_held+0xb5/0x140
[  400.227893]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.233435]  ? check_preemption_disabled+0x48/0x280
[  400.238457]  run_timer_softirq+0x52/0xb0
[  400.242523]  ? rcu_read_lock_sched_held+0x14f/0x180
[  400.247541]  __do_softirq+0x308/0xb7e
[  400.251345]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  400.255839]  ? lock_downgrade+0x900/0x900
[  400.259991]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  400.265115]  ? pvclock_read_flags+0x160/0x160
[  400.269616]  ? lapic_next_event+0x5a/0x90
[  400.273770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.279325]  ? kvm_clock_read+0x18/0x30
[  400.283301]  ? kvm_sched_clock_read+0x9/0x20
[  400.287716]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.293255]  ? check_preemption_disabled+0x48/0x280
[  400.298279]  irq_exit+0x17f/0x1c0
[  400.301738]  smp_apic_timer_interrupt+0x1cb/0x760
[  400.306581]  ? smp_call_function_single_interrupt+0x650/0x650
[  400.312469]  ? interrupt_entry+0xb5/0xc0
[  400.316532]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.321549]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.326570]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.331442]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.336455]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.341470]  ? task_prio+0x50/0x50
[  400.345015]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.350557]  ? check_preemption_disabled+0x48/0x280
[  400.355607]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.360459]  apic_timer_interrupt+0xf/0x20
[  400.364690]  </IRQ>
[  400.366935] RIP: 0010:dump_stack+0x358/0x39d
[  400.371345] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  400.390242] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  400.397949] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  400.405218] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  400.412488] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  400.419757] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  400.427121] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  400.434406]  ? dump_stack+0x34f/0x39d
[  400.438219]  ? dump_stack_print_info.cold.1+0x20/0x20
[  400.443416]  ? mark_held_locks+0x130/0x130
[  400.447652]  ? mark_held_locks+0x130/0x130
[  400.451893]  dump_header+0x27b/0xf72
[  400.455621]  ? pagefault_out_of_memory+0x197/0x197
[  400.460602]  ? __lock_acquire+0x62f/0x4c20
[  400.464840]  ? percpu_ref_get_many+0x240/0x240
[  400.469424]  ? print_usage_bug+0xc0/0xc0
[  400.473490]  ? zap_class+0x640/0x640
[  400.477206]  ? print_usage_bug+0xc0/0xc0
[  400.481266]  ? print_usage_bug+0xc0/0xc0
[  400.485332]  ? zap_class+0x640/0x640
[  400.489062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.494607]  ? find_held_lock+0x36/0x1c0
[  400.498675]  ? mark_held_locks+0xc7/0x130
[  400.502827]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  400.507929]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  400.513037]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  400.517634]  ? trace_hardirqs_on+0xbd/0x310
[  400.521955]  ? kasan_check_read+0x11/0x20
[  400.526111]  ? ___ratelimit+0x3b4/0x672
[  400.530094]  ? trace_hardirqs_off_caller+0x310/0x310
[  400.535209]  ? trace_hardirqs_on+0x310/0x310
[  400.539619]  ? lock_downgrade+0x900/0x900
[  400.543772]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  400.548879]  ? ___ratelimit+0x3b9/0x672
[  400.552854]  ? idr_get_free+0xf70/0xf70
[  400.556832]  ? find_held_lock+0x36/0x1c0
[  400.560901]  oom_kill_process.cold.27+0x10/0x903
[  400.565658]  ? zap_class+0x640/0x640
[  400.569371]  ? check_preemption_disabled+0x48/0x280
[  400.574389]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.579317]  ? kasan_check_read+0x11/0x20
[  400.583467]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.588745]  ? oom_evaluate_task+0x540/0x540
[  400.593160]  ? find_held_lock+0x36/0x1c0
[  400.597230]  ? out_of_memory+0x974/0x1430
[  400.601382]  ? lock_downgrade+0x900/0x900
[  400.605531]  ? check_preemption_disabled+0x48/0x280
[  400.610552]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.615483]  ? kasan_check_read+0x11/0x20
[  400.619631]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.624913]  ? rcu_softirq_qs+0x20/0x20
[  400.628897]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.634434]  ? oom_evaluate_task+0x302/0x540
[  400.638848]  out_of_memory+0xa84/0x1430
[  400.642831]  ? oom_killer_disable+0x3a0/0x3a0
[  400.647327]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  400.652264]  ? __ww_mutex_check_waiters+0x160/0x160
[  400.657292]  __alloc_pages_slowpath+0x2354/0x2e10
[  400.662165]  ? warn_alloc+0x120/0x120
[  400.665980]  ? mark_held_locks+0x130/0x130
[  400.670230]  ? find_get_entry+0xaae/0x1120
[  400.674472]  ? filemap_map_pages+0x1a20/0x1a20
[  400.679072]  ? zap_class+0x640/0x640
[  400.682798]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.688340]  ? check_preemption_disabled+0x48/0x280
[  400.693359]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.698897]  ? should_fail+0x22d/0xd01
[  400.702786]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.707894]  ? zap_class+0x640/0x640
[  400.711630]  ? __lock_is_held+0xb5/0x140
[  400.715703]  ? mark_held_locks+0x130/0x130
[  400.719945]  ? lock_release+0xa00/0xa00
[  400.723922]  ? perf_trace_sched_process_exec+0x860/0x860
[  400.729377]  ? xa_load+0x2ba/0x460
[  400.732935]  ? lock_downgrade+0x900/0x900
[  400.737108]  ? __might_sleep+0x95/0x190
[  400.741105]  __alloc_pages_nodemask+0xa80/0xde0
[  400.745785]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  400.750801]  ? __page_cache_alloc+0x191/0x5c0
[  400.755298]  ? xa_load+0x2e1/0x460
[  400.758837]  ? xa_clear_mark+0x40/0x40
[  400.762729]  ? zap_class+0x640/0x640
[  400.766451]  ? zap_class+0x640/0x640
[  400.770167]  ? zap_class+0x640/0x640
[  400.773881]  ? __do_page_cache_readahead+0x663/0x810
[  400.778990]  ? find_held_lock+0x36/0x1c0
[  400.783066]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  400.788612]  alloc_pages_current+0x173/0x350
[  400.793039]  __page_cache_alloc+0x38c/0x5c0
[  400.797358]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.802289]  ? kasan_check_read+0x11/0x20
[  400.806440]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.811717]  ? generic_perform_write+0x6a0/0x6a0
[  400.816474]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.822013]  ? check_preemption_disabled+0x48/0x280
[  400.827059]  filemap_fault+0x1595/0x25f0
[  400.831136]  ? __lock_page_or_retry+0xa00/0xa00
[  400.835807]  ? mark_held_locks+0x130/0x130
[  400.840059]  ? filemap_map_pages+0xd6b/0x1a20
[  400.844560]  ? lock_downgrade+0x900/0x900
[  400.848710]  ? check_preemption_disabled+0x48/0x280
[  400.853729]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  400.858659]  ? kasan_check_read+0x11/0x20
[  400.862805]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.868087]  ? rcu_softirq_qs+0x20/0x20
[  400.872091]  ? filemap_map_pages+0xd92/0x1a20
[  400.876597]  ? find_get_entries_tag+0x1400/0x1400
[  400.881440]  ? find_held_lock+0x36/0x1c0
[  400.885520]  ? lock_acquire+0x1ed/0x520
[  400.889500]  ? ext4_filemap_fault+0x7a/0xad
[  400.894271]  ? lock_release+0xa00/0xa00
[  400.898249]  ? perf_trace_sched_process_exec+0x860/0x860
[  400.903787]  ? print_usage_bug+0xc0/0xc0
[  400.907863]  ? down_read+0x8d/0x120
[  400.911488]  ? ext4_filemap_fault+0x7a/0xad
[  400.915813]  ? __down_interruptible+0x700/0x700
[  400.920489]  ? find_held_lock+0x36/0x1c0
[  400.924555]  ext4_filemap_fault+0x82/0xad
[  400.928707]  __do_fault+0x100/0x6b0
[  400.932339]  ? lock_downgrade+0x900/0x900
[  400.936487]  ? pmd_devmap_trans_unstable+0x220/0x220
[  400.941595]  ? kasan_check_read+0x11/0x20
[  400.945744]  ? do_raw_spin_unlock+0xa7/0x330
[  400.950156]  ? do_raw_spin_trylock+0x270/0x270
[  400.954753]  __handle_mm_fault+0x3ea0/0x5be0
[  400.959160]  ? perf_trace_lock+0x7a0/0x7a0
[  400.963400]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  400.968248]  ? __switch_to_asm+0x34/0x70
[  400.972306]  ? __switch_to_asm+0x34/0x70
[  400.976380]  ? zap_class+0x640/0x640
[  400.980099]  ? zap_class+0x640/0x640
[  400.983810]  ? __x64_sys_futex+0x53e/0x6a0
[  400.988087]  ? find_held_lock+0x36/0x1c0
[  400.992158]  ? handle_mm_fault+0x42a/0xc70
[  400.996396]  ? lock_downgrade+0x900/0x900
[  401.000548]  ? check_preemption_disabled+0x48/0x280
[  401.005574]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  401.010508]  ? kasan_check_read+0x11/0x20
[  401.014657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.019931]  ? rcu_softirq_qs+0x20/0x20
[  401.023906]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.029024]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.034560]  ? check_preemption_disabled+0x48/0x280
[  401.039588]  handle_mm_fault+0x54f/0xc70
[  401.043656]  ? __handle_mm_fault+0x5be0/0x5be0
[  401.048244]  ? find_vma+0x34/0x190
[  401.051791]  __do_page_fault+0x5e8/0xe60
[  401.055852]  ? trace_hardirqs_off+0xb8/0x310
[  401.060577]  do_page_fault+0xf2/0x7e0
[  401.064379]  ? vmalloc_sync_all+0x30/0x30
[  401.068526]  ? error_entry+0x70/0xd0
[  401.072244]  ? trace_hardirqs_off_caller+0xbb/0x310
[  401.077260]  ? trace_hardirqs_on_caller+0xc0/0x310
[  401.082201]  ? syscall_return_slowpath+0x5e0/0x5e0
[  401.087133]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.091976]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.097016]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  401.102474]  ? prepare_exit_to_usermode+0x291/0x3b0
[  401.107492]  ? page_fault+0x8/0x30
[  401.111042]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.115891]  ? page_fault+0x8/0x30
[  401.119431]  page_fault+0x1e/0x30
[  401.122882] RIP: 0033:0x404068
[  401.126093] Code: Bad RIP value.
[  401.129455] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  401.134819] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  401.142096] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  401.149364] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  401.156631] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  401.163931] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  401.171225] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  401.171229] warn_alloc_show_mem: 1 callbacks suppressed
[  401.171236] Mem-Info:
[  401.178590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  401.183959] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  401.183959]  active_file:13 inactive_file:13 isolated_file:0
[  401.183959]  unevictable:0 dirty:0 writeback:0 unstable:0
[  401.183959]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  401.183959]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  401.183959]  free:13747 free_pcp:348 free_cma:0
[  401.186332] Call Trace:
[  401.195710] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  401.228728]  <IRQ>
[  401.231298] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  401.259151]  dump_stack+0x244/0x39d
[  401.261277] lowmem_reserve[]: 0 2818 6321 6321
[  401.287382]  ? dump_stack_print_info.cold.1+0x20/0x20
[  401.290980] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  401.295575]  warn_alloc.cold.116+0xb7/0x1bd
[  401.300730] lowmem_reserve[]: 0 0 3503 3503
[  401.328221]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  401.332517] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  401.336837]  ? lock_downgrade+0x900/0x900
[  401.341649] lowmem_reserve[]: 0 0 0 0
[  401.370973]  ? trace_hardirqs_off+0xb8/0x310
[  401.375137] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  401.378935]  ? trace_hardirqs_off+0xb8/0x310
[  401.383317] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  401.396841]  __alloc_pages_slowpath+0x26e8/0x2e10
[  401.401219] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  401.416151]  ? warn_alloc+0x120/0x120
[  401.420957] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  401.436121]  ? print_usage_bug+0xc0/0xc0
[  401.439901] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  401.448724]  ? warn_alloc+0x120/0x120
[  401.452764] 4484 total pagecache pages
[  401.461333]  ? warn_alloc+0x120/0x120
[  401.465121] 0 pages in swap cache
[  401.469005]  ? print_usage_bug+0xc0/0xc0
[  401.472784] Swap cache stats: add 0, delete 0, find 0/0
[  401.476225]  ? kvm_clock_read+0x18/0x30
[  401.480288] Free swap  = 0kB
[  401.485643]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  401.489585] Total swap = 0kB
[  401.489593] 1965979 pages RAM
[  401.492606]  ? print_usage_bug+0xc0/0xc0
[  401.497596] 0 pages HighMem/MovableOnly
[  401.500605]  ? __lock_acquire+0x62f/0x4c20
[  401.503680] 342854 pages reserved
[  401.503687] 0 pages cma reserved
[  401.507742]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.511744] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  401.515913]  ? should_fail+0x22d/0xd01
[  401.519626] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  401.522898]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.528410] syz-fuzzer cpuset=/ mems_allowed=0
[  401.534898]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.563909]  ? __lock_acquire+0x62f/0x4c20
[  401.568150]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.573252]  ? __lock_acquire+0x62f/0x4c20
[  401.577489]  ? should_fail+0x22d/0xd01
[  401.581377]  ? rcu_irq_exit+0x1a2/0x390
[  401.585361]  ? mark_held_locks+0x130/0x130
[  401.589600]  ? mark_held_locks+0x130/0x130
[  401.593839]  ? mark_held_locks+0xc7/0x130
[  401.598000]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  401.603015]  ? zap_class+0x640/0x640
[  401.606730]  ? print_usage_bug+0xc0/0xc0
[  401.610795]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.616337]  ? check_preemption_disabled+0x48/0x280
[  401.621367]  ? __lock_is_held+0xb5/0x140
[  401.625443]  __alloc_pages_nodemask+0xa80/0xde0
[  401.630116]  ? zap_class+0x640/0x640
[  401.633836]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  401.638864]  ? find_held_lock+0x36/0x1c0
[  401.642938]  ? ____cache_alloc_node+0x1c7/0x1e0
[  401.647624]  ? lock_downgrade+0x900/0x900
[  401.651781]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.657326]  cache_grow_begin+0xa5/0x8c0
[  401.661387]  ? do_raw_spin_unlock+0xa7/0x330
[  401.665802]  fallback_alloc+0x204/0x2e0
[  401.669787]  ____cache_alloc_node+0x1c7/0x1e0
[  401.674289]  kmem_cache_alloc_node+0xe3/0x730
[  401.678786]  ? ipv6_get_ifaddr+0x42e/0x620
[  401.683030]  __alloc_skb+0x119/0x770
[  401.686742]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.692026]  ? netdev_alloc_frag+0x1f0/0x1f0
[  401.696435]  ? lock_downgrade+0x900/0x900
[  401.700595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.706131]  ? refcount_sub_and_test_checked+0x203/0x310
[  401.711585]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  401.717039]  ? addrconf_rs_timer+0x690/0x690
[  401.721459]  ndisc_alloc_skb+0x144/0x340
[  401.725527]  ndisc_send_rs+0x331/0x6e0
[  401.729420]  addrconf_rs_timer+0x314/0x690
[  401.733660]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.737907]  call_timer_fn+0x272/0x920
[  401.741793]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.746030]  ? process_timeout+0x40/0x40
[  401.750101]  ? __run_timers+0x7da/0xc70
[  401.754079]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.758575]  ? _raw_spin_unlock_irq+0x27/0x80
[  401.763070]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.767309]  ? lockdep_hardirqs_on+0x296/0x5b0
[  401.771896]  ? trace_hardirqs_on+0xbd/0x310
[  401.776220]  ? kasan_check_read+0x11/0x20
[  401.780371]  ? __run_timers+0x7da/0xc70
[  401.784346]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.789469]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.793712]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  401.797954]  __run_timers+0x7e5/0xc70
[  401.801769]  ? timer_fixup_init+0x70/0x70
[  401.805920]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  401.810965]  ? zap_class+0x640/0x640
[  401.814684]  ? enqueue_hrtimer+0x1a5/0x560
[  401.818923]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  401.824139]  ? find_held_lock+0x36/0x1c0
[  401.828205]  ? zap_class+0x640/0x640
[  401.831928]  ? pvclock_read_flags+0x160/0x160
[  401.836438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.841985]  ? check_preemption_disabled+0x48/0x280
[  401.847015]  ? __lock_is_held+0xb5/0x140
[  401.851079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.856618]  ? check_preemption_disabled+0x48/0x280
[  401.861644]  run_timer_softirq+0x52/0xb0
[  401.865711]  ? rcu_read_lock_sched_held+0x14f/0x180
[  401.870731]  __do_softirq+0x308/0xb7e
[  401.874541]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  401.879043]  ? lock_downgrade+0x900/0x900
[  401.883195]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  401.888304]  ? pvclock_read_flags+0x160/0x160
[  401.892801]  ? lapic_next_event+0x5a/0x90
[  401.896964]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.902511]  ? kvm_clock_read+0x18/0x30
[  401.906492]  ? kvm_sched_clock_read+0x9/0x20
[  401.910902]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.916451]  ? check_preemption_disabled+0x48/0x280
[  401.921477]  irq_exit+0x17f/0x1c0
[  401.924948]  smp_apic_timer_interrupt+0x1cb/0x760
[  401.929791]  ? smp_reschedule_interrupt+0x109/0x650
[  401.934808]  ? smp_call_function_single_interrupt+0x650/0x650
[  401.940694]  ? interrupt_entry+0xb5/0xc0
[  401.944756]  ? trace_hardirqs_off_caller+0xbb/0x310
[  401.949815]  ? trace_hardirqs_off_caller+0xbb/0x310
[  401.954836]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.959678]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.964696]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.969710]  ? task_prio+0x50/0x50
[  401.973254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.978793]  ? check_preemption_disabled+0x48/0x280
[  401.983818]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.988700]  apic_timer_interrupt+0xf/0x20
[  401.992941]  </IRQ>
[  401.995202] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  402.000133] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  402.019032] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  402.026737] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  402.034008] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  402.041277] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  402.048544] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  402.055810] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  402.063116]  skb_clone+0x1bb/0x500
[  402.066657]  ? finish_task_switch+0x2f4/0x910
[  402.071153]  ? skb_split+0x11e0/0x11e0
[  402.075045]  ? preempt_notifier_register+0x200/0x200
[  402.080149]  ? __switch_to_asm+0x34/0x70
[  402.084222]  ? __switch_to_asm+0x34/0x70
[  402.088280]  ? __switch_to_asm+0x40/0x70
[  402.092342]  ? __switch_to_asm+0x34/0x70
[  402.096403]  ? __switch_to_asm+0x40/0x70
[  402.100465]  ? __switch_to_asm+0x34/0x70
[  402.104526]  ? __switch_to_asm+0x40/0x70
[  402.108583]  ? __switch_to_asm+0x34/0x70
[  402.112642]  ? __switch_to_asm+0x34/0x70
[  402.116701]  ? __switch_to_asm+0x40/0x70
[  402.120758]  ? __switch_to_asm+0x34/0x70
[  402.124823]  bpf_clone_redirect+0xb9/0x490
[  402.129063]  ? __schedule+0x8d7/0x21d0
[  402.132970]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  402.137990]  ? __sched_text_start+0x8/0x8
[  402.142143]  ? retint_kernel+0x2d/0x2d
[  402.146042]  ? find_held_lock+0x36/0x1c0
[  402.150128]  ? lock_acquire+0x1ed/0x520
[  402.154193]  ? bpf_test_run+0x3cb/0x780
[  402.158167]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.163706]  ? check_preemption_disabled+0x48/0x280
[  402.168816]  ? kasan_check_read+0x11/0x20
[  402.172976]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.178255]  ? rcu_softirq_qs+0x20/0x20
[  402.182231]  ? preempt_schedule+0x4d/0x60
[  402.186382]  ? ___preempt_schedule+0x16/0x18
[  402.190805]  ? bpf_test_run+0x25d/0x780
[  402.194793]  ? netlink_diag_dump+0x2a0/0x2a0
[  402.199208]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.204746]  ? bpf_test_init.isra.10+0x70/0x100
[  402.209420]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  402.214185]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  402.219031]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  402.224570]  ? fput+0x130/0x1a0
[  402.227854]  ? __bpf_prog_get+0x9b/0x290
[  402.231929]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  402.236774]  ? bpf_prog_test_run+0x130/0x1a0
[  402.241187]  ? __x64_sys_bpf+0x3d8/0x520
[  402.245252]  ? bpf_prog_get+0x20/0x20
[  402.249073]  ? do_syscall_64+0x1b9/0x820
[  402.253138]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  402.258507]  ? syscall_return_slowpath+0x5e0/0x5e0
[  402.263437]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.268287]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.273303]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  402.278320]  ? prepare_exit_to_usermode+0x291/0x3b0
[  402.283345]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.288195]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  402.293577] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  402.293641] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  402.300593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  402.300598] Call Trace:
[  402.300604]  <IRQ>
[  402.300621]  dump_stack+0x244/0x39d
[  402.300640]  ? dump_stack_print_info.cold.1+0x20/0x20
[  402.307193] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  402.316473]  warn_alloc.cold.116+0xb7/0x1bd
[  402.319031] syz-executor2 cpuset=syz2 mems_allowed=0
[  402.321175]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  402.354663]  ? lock_downgrade+0x900/0x900
[  402.358820]  ? trace_hardirqs_off+0xb8/0x310
[  402.363233]  ? trace_hardirqs_off+0xb8/0x310
[  402.367654]  __alloc_pages_slowpath+0x26e8/0x2e10
[  402.372525]  ? warn_alloc+0x120/0x120
[  402.376329]  ? print_usage_bug+0xc0/0xc0
[  402.380394]  ? warn_alloc+0x120/0x120
[  402.384288]  ? warn_alloc+0x120/0x120
[  402.388095]  ? print_usage_bug+0xc0/0xc0
[  402.392158]  ? kvm_clock_read+0x18/0x30
[  402.396134]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  402.401155]  ? print_usage_bug+0xc0/0xc0
[  402.405217]  ? __lock_acquire+0x62f/0x4c20
[  402.409460]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.415003]  ? should_fail+0x22d/0xd01
[  402.418890]  ? __lock_acquire+0x62f/0x4c20
[  402.423138]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.428242]  ? __lock_acquire+0x62f/0x4c20
[  402.432482]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.437586]  ? __lock_acquire+0x62f/0x4c20
[  402.441821]  ? should_fail+0x22d/0xd01
[  402.445722]  ? mark_held_locks+0x130/0x130
[  402.449974]  ? mark_held_locks+0x130/0x130
[  402.454220]  ? mark_held_locks+0xc7/0x130
[  402.458371]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  402.463385]  ? zap_class+0x640/0x640
[  402.467101]  ? print_usage_bug+0xc0/0xc0
[  402.471168]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.476706]  ? check_preemption_disabled+0x48/0x280
[  402.481754]  ? __lock_is_held+0xb5/0x140
[  402.485823]  __alloc_pages_nodemask+0xa80/0xde0
[  402.490497]  ? zap_class+0x640/0x640
[  402.494219]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  402.499333]  ? find_held_lock+0x36/0x1c0
[  402.503403]  ? ____cache_alloc_node+0x1c7/0x1e0
[  402.508076]  ? lock_downgrade+0x900/0x900
[  402.512232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.517774]  cache_grow_begin+0xa5/0x8c0
[  402.521838]  ? do_raw_spin_unlock+0xa7/0x330
[  402.526253]  fallback_alloc+0x204/0x2e0
[  402.530236]  ____cache_alloc_node+0x1c7/0x1e0
[  402.534739]  kmem_cache_alloc_node+0xe3/0x730
[  402.539236]  ? ipv6_get_ifaddr+0x42e/0x620
[  402.543484]  __alloc_skb+0x119/0x770
[  402.547212]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.552494]  ? netdev_alloc_frag+0x1f0/0x1f0
[  402.556915]  ? lock_downgrade+0x900/0x900
[  402.561074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.566620]  ? refcount_sub_and_test_checked+0x203/0x310
[  402.572074]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  402.577526]  ? addrconf_rs_timer+0x690/0x690
[  402.581950]  ndisc_alloc_skb+0x144/0x340
[  402.586019]  ndisc_send_rs+0x331/0x6e0
[  402.589920]  addrconf_rs_timer+0x314/0x690
[  402.594165]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.598414]  call_timer_fn+0x272/0x920
[  402.602304]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.606539]  ? process_timeout+0x40/0x40
[  402.610609]  ? mark_held_locks+0xc7/0x130
[  402.614763]  ? _raw_spin_unlock_irq+0x27/0x80
[  402.619255]  ? _raw_spin_unlock_irq+0x27/0x80
[  402.623751]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.627995]  ? lockdep_hardirqs_on+0x296/0x5b0
[  402.632581]  ? trace_hardirqs_on+0xbd/0x310
[  402.636915]  ? kasan_check_read+0x11/0x20
[  402.641067]  ? __run_timers+0x7da/0xc70
[  402.645045]  ? trace_hardirqs_off_caller+0x310/0x310
[  402.650160]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.654395]  __run_timers+0x7e5/0xc70
[  402.658203]  ? timer_fixup_init+0x70/0x70
[  402.662352]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  402.667373]  ? zap_class+0x640/0x640
[  402.671094]  ? print_usage_bug+0xc0/0xc0
[  402.675243]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  402.680448]  ? find_held_lock+0x36/0x1c0
[  402.684528]  ? zap_class+0x640/0x640
[  402.688248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.693786]  ? check_preemption_disabled+0x48/0x280
[  402.698811]  ? __lock_is_held+0xb5/0x140
[  402.702886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.708426]  ? check_preemption_disabled+0x48/0x280
[  402.713445]  run_timer_softirq+0x52/0xb0
[  402.717507]  ? rcu_read_lock_sched_held+0x14f/0x180
[  402.722526]  __do_softirq+0x308/0xb7e
[  402.726335]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  402.730827]  ? lock_downgrade+0x900/0x900
[  402.734982]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  402.740095]  ? pvclock_read_flags+0x160/0x160
[  402.744592]  ? lapic_next_event+0x5a/0x90
[  402.748742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.754284]  ? kvm_clock_read+0x18/0x30
[  402.758260]  ? kvm_sched_clock_read+0x9/0x20
[  402.762669]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.768207]  ? check_preemption_disabled+0x48/0x280
[  402.773231]  irq_exit+0x17f/0x1c0
[  402.776685]  smp_apic_timer_interrupt+0x1cb/0x760
[  402.781531]  ? smp_call_function_single_interrupt+0x650/0x650
[  402.787412]  ? interrupt_entry+0xb5/0xc0
[  402.791474]  ? trace_hardirqs_off_caller+0xbb/0x310
[  402.796489]  ? trace_hardirqs_off_caller+0xbb/0x310
[  402.801505]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.806350]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.811368]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.816415]  ? task_prio+0x50/0x50
[  402.819960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.825499]  ? check_preemption_disabled+0x48/0x280
[  402.830519]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.835370]  apic_timer_interrupt+0xf/0x20
[  402.839603]  </IRQ>
[  402.841841] RIP: 0010:dump_stack+0x358/0x39d
[  402.846266] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  402.865164] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  402.872879] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  402.880152] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  402.887420] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  402.895140] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  402.902410] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  402.909747]  ? dump_stack+0x34f/0x39d
[  402.913566]  ? dump_stack_print_info.cold.1+0x20/0x20
[  402.918759]  ? mark_held_locks+0x130/0x130
[  402.922994]  ? mark_held_locks+0x130/0x130
[  402.927237]  dump_header+0x27b/0xf72
[  402.930970]  ? pagefault_out_of_memory+0x197/0x197
[  402.935911]  ? __lock_acquire+0x62f/0x4c20
[  402.940151]  ? percpu_ref_get_many+0x240/0x240
[  402.944738]  ? print_usage_bug+0xc0/0xc0
[  402.948805]  ? zap_class+0x640/0x640
[  402.952519]  ? print_usage_bug+0xc0/0xc0
[  402.956577]  ? print_usage_bug+0xc0/0xc0
[  402.960644]  ? zap_class+0x640/0x640
[  402.964363]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.969914]  ? find_held_lock+0x36/0x1c0
[  402.973985]  ? mark_held_locks+0xc7/0x130
[  402.978135]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  402.983234]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  402.988359]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  402.992945]  ? trace_hardirqs_on+0xbd/0x310
[  402.997266]  ? kasan_check_read+0x11/0x20
[  403.001416]  ? ___ratelimit+0x3b4/0x672
[  403.005395]  ? trace_hardirqs_off_caller+0x310/0x310
[  403.010500]  ? trace_hardirqs_on+0x310/0x310
[  403.014914]  ? lock_downgrade+0x900/0x900
[  403.019066]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  403.024171]  ? ___ratelimit+0x3b9/0x672
[  403.028149]  ? idr_get_free+0xf70/0xf70
[  403.032128]  ? find_held_lock+0x36/0x1c0
[  403.036202]  oom_kill_process.cold.27+0x10/0x903
[  403.040991]  ? zap_class+0x640/0x640
[  403.044709]  ? check_preemption_disabled+0x48/0x280
[  403.049733]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.054663]  ? kasan_check_read+0x11/0x20
[  403.058809]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.064412]  ? oom_evaluate_task+0x540/0x540
[  403.068826]  ? find_held_lock+0x36/0x1c0
[  403.072910]  ? out_of_memory+0x974/0x1430
[  403.077060]  ? lock_downgrade+0x900/0x900
[  403.081210]  ? check_preemption_disabled+0x48/0x280
[  403.086234]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.091166]  ? kasan_check_read+0x11/0x20
[  403.095316]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.100593]  ? rcu_softirq_qs+0x20/0x20
[  403.104570]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.110107]  ? oom_evaluate_task+0x302/0x540
[  403.114522]  out_of_memory+0xa84/0x1430
[  403.118506]  ? oom_killer_disable+0x3a0/0x3a0
[  403.123006]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  403.127944]  ? __ww_mutex_check_waiters+0x160/0x160
[  403.132972]  __alloc_pages_slowpath+0x2354/0x2e10
[  403.137857]  ? warn_alloc+0x120/0x120
[  403.141661]  ? mark_held_locks+0x130/0x130
[  403.145908]  ? find_get_entry+0xaae/0x1120
[  403.150157]  ? filemap_map_pages+0x1a20/0x1a20
[  403.154747]  ? zap_class+0x640/0x640
[  403.158470]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.164011]  ? check_preemption_disabled+0x48/0x280
[  403.169030]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.174566]  ? should_fail+0x22d/0xd01
[  403.178456]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  403.183560]  ? zap_class+0x640/0x640
[  403.187298]  ? __lock_is_held+0xb5/0x140
[  403.191368]  ? mark_held_locks+0x130/0x130
[  403.195605]  ? lock_release+0xa00/0xa00
[  403.199578]  ? perf_trace_sched_process_exec+0x860/0x860
[  403.205031]  ? xa_load+0x2ba/0x460
[  403.208575]  ? lock_downgrade+0x900/0x900
[  403.212726]  ? __might_sleep+0x95/0x190
[  403.216705]  __alloc_pages_nodemask+0xa80/0xde0
[  403.221380]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  403.226397]  ? __page_cache_alloc+0x191/0x5c0
[  403.230897]  ? xa_load+0x2e1/0x460
[  403.234437]  ? xa_clear_mark+0x40/0x40
[  403.238329]  ? zap_class+0x640/0x640
[  403.242054]  ? zap_class+0x640/0x640
[  403.245769]  ? zap_class+0x640/0x640
[  403.249481]  ? __do_page_cache_readahead+0x663/0x810
[  403.254588]  ? find_held_lock+0x36/0x1c0
[  403.258653]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  403.264197]  alloc_pages_current+0x173/0x350
[  403.268618]  __page_cache_alloc+0x38c/0x5c0
[  403.272939]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.277869]  ? kasan_check_read+0x11/0x20
[  403.282022]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.287303]  ? generic_perform_write+0x6a0/0x6a0
[  403.292059]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.297595]  ? check_preemption_disabled+0x48/0x280
[  403.302621]  filemap_fault+0x1595/0x25f0
[  403.306696]  ? __lock_page_or_retry+0xa00/0xa00
[  403.311368]  ? mark_held_locks+0x130/0x130
[  403.315612]  ? filemap_map_pages+0xd6b/0x1a20
[  403.320107]  ? lock_downgrade+0x900/0x900
[  403.324259]  ? check_preemption_disabled+0x48/0x280
[  403.329281]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.334209]  ? kasan_check_read+0x11/0x20
[  403.338355]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.343633]  ? rcu_softirq_qs+0x20/0x20
[  403.347619]  ? filemap_map_pages+0xd92/0x1a20
[  403.352129]  ? find_get_entries_tag+0x1400/0x1400
[  403.356968]  ? find_held_lock+0x36/0x1c0
[  403.361047]  ? lock_acquire+0x1ed/0x520
[  403.365023]  ? ext4_filemap_fault+0x7a/0xad
[  403.369349]  ? lock_release+0xa00/0xa00
[  403.373326]  ? perf_trace_sched_process_exec+0x860/0x860
[  403.378776]  ? print_usage_bug+0xc0/0xc0
[  403.382861]  ? down_read+0x8d/0x120
[  403.386489]  ? ext4_filemap_fault+0x7a/0xad
[  403.390809]  ? __down_interruptible+0x700/0x700
[  403.395492]  ? find_held_lock+0x36/0x1c0
[  403.399556]  ext4_filemap_fault+0x82/0xad
[  403.403708]  __do_fault+0x100/0x6b0
[  403.407337]  ? lock_downgrade+0x900/0x900
[  403.411488]  ? pmd_devmap_trans_unstable+0x220/0x220
[  403.416599]  ? kasan_check_read+0x11/0x20
[  403.420744]  ? do_raw_spin_unlock+0xa7/0x330
[  403.425150]  ? do_raw_spin_trylock+0x270/0x270
[  403.429747]  __handle_mm_fault+0x3ea0/0x5be0
[  403.434156]  ? perf_trace_lock+0x7a0/0x7a0
[  403.438401]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  403.443249]  ? __switch_to_asm+0x34/0x70
[  403.447305]  ? __switch_to_asm+0x34/0x70
[  403.451380]  ? zap_class+0x640/0x640
[  403.455093]  ? zap_class+0x640/0x640
[  403.458802]  ? __x64_sys_futex+0x53e/0x6a0
[  403.463050]  ? find_held_lock+0x36/0x1c0
[  403.467118]  ? handle_mm_fault+0x42a/0xc70
[  403.471349]  ? lock_downgrade+0x900/0x900
[  403.475496]  ? check_preemption_disabled+0x48/0x280
[  403.480511]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.485433]  ? kasan_check_read+0x11/0x20
[  403.489579]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.494852]  ? rcu_softirq_qs+0x20/0x20
[  403.498833]  ? trace_hardirqs_off_caller+0x310/0x310
[  403.504718]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.510254]  ? check_preemption_disabled+0x48/0x280
[  403.515272]  handle_mm_fault+0x54f/0xc70
[  403.519333]  ? __handle_mm_fault+0x5be0/0x5be0
[  403.523961]  ? find_vma+0x34/0x190
[  403.527501]  __do_page_fault+0x5e8/0xe60
[  403.531558]  ? trace_hardirqs_off+0xb8/0x310
[  403.535972]  do_page_fault+0xf2/0x7e0
[  403.539771]  ? vmalloc_sync_all+0x30/0x30
[  403.543921]  ? error_entry+0x70/0xd0
[  403.547633]  ? trace_hardirqs_off_caller+0xbb/0x310
[  403.552644]  ? trace_hardirqs_on_caller+0xc0/0x310
[  403.557572]  ? syscall_return_slowpath+0x5e0/0x5e0
[  403.562496]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.567335]  ? trace_hardirqs_on_caller+0x310/0x310
[  403.572349]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  403.577810]  ? prepare_exit_to_usermode+0x291/0x3b0
[  403.582824]  ? page_fault+0x8/0x30
[  403.586368]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.591209]  ? page_fault+0x8/0x30
[  403.594744]  page_fault+0x1e/0x30
[  403.598192] RIP: 0033:0x404068
[  403.601393] Code: Bad RIP value.
[  403.604748] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  403.610108] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  403.617371] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  403.624630] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  403.631896] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  403.639160] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  403.646454] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  403.646459] warn_alloc_show_mem: 1 callbacks suppressed
[  403.646465] Mem-Info:
[  403.653825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  403.659198] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  403.659198]  active_file:13 inactive_file:13 isolated_file:0
[  403.659198]  unevictable:0 dirty:0 writeback:0 unstable:0
[  403.659198]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  403.659198]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  403.659198]  free:13747 free_pcp:348 free_cma:0
[  403.661570] Call Trace:
[  403.670943] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  403.703954]  <IRQ>
[  403.706518] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  403.734370]  dump_stack+0x244/0x39d
[  403.736500] lowmem_reserve[]: 0 2818 6321 6321
[  403.762601]  ? dump_stack_print_info.cold.1+0x20/0x20
[  403.766197] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  403.770779]  warn_alloc.cold.116+0xb7/0x1bd
[  403.775949] lowmem_reserve[]: 0 0 3503 3503
[  403.803433]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  403.807726] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  403.812044]  ? lock_downgrade+0x900/0x900
[  403.816852] lowmem_reserve[]: 0 0 0 0
[  403.846002]  ? trace_hardirqs_off+0xb8/0x310
[  403.850147] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  403.853940]  ? trace_hardirqs_off+0xb8/0x310
[  403.858315] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  403.871851]  __alloc_pages_slowpath+0x26e8/0x2e10
[  403.876230] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  403.891159]  ? warn_alloc+0x120/0x120
[  403.895958] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  403.911112]  ? print_usage_bug+0xc0/0xc0
[  403.914890] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  403.923708]  ? warn_alloc+0x120/0x120
[  403.927741] 4484 total pagecache pages
[  403.936304]  ? warn_alloc+0x120/0x120
[  403.940095] 0 pages in swap cache
[  403.943966]  ? print_usage_bug+0xc0/0xc0
[  403.947741] Swap cache stats: add 0, delete 0, find 0/0
[  403.951178]  ? kvm_clock_read+0x18/0x30
[  403.955208] Free swap  = 0kB
[  403.960558]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  403.964504] Total swap = 0kB
[  403.967523]  ? print_usage_bug+0xc0/0xc0
[  403.972509] 1965979 pages RAM
[  403.975516]  ? __lock_acquire+0x62f/0x4c20
[  403.979541] 0 pages HighMem/MovableOnly
[  403.979548] 342854 pages reserved
[  403.982646]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.986850] 0 pages cma reserved
[  403.986914] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  403.990821]  ? should_fail+0x22d/0xd01
[  403.990838]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.990859]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  403.994351] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  403.999813]  ? __lock_acquire+0x62f/0x4c20
[  404.003155] syz-fuzzer cpuset=/ mems_allowed=0
[  404.009646]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  404.047935]  ? __lock_acquire+0x62f/0x4c20
[  404.052168]  ? should_fail+0x22d/0xd01
[  404.056053]  ? rcu_irq_exit+0x1a2/0x390
[  404.060033]  ? mark_held_locks+0x130/0x130
[  404.064270]  ? mark_held_locks+0x130/0x130
[  404.068505]  ? mark_held_locks+0xc7/0x130
[  404.072652]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  404.077663]  ? zap_class+0x640/0x640
[  404.081374]  ? print_usage_bug+0xc0/0xc0
[  404.085432]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.090979]  ? check_preemption_disabled+0x48/0x280
[  404.096001]  ? __lock_is_held+0xb5/0x140
[  404.100066]  __alloc_pages_nodemask+0xa80/0xde0
[  404.104748]  ? zap_class+0x640/0x640
[  404.108476]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  404.113505]  ? find_held_lock+0x36/0x1c0
[  404.117573]  ? ____cache_alloc_node+0x1c7/0x1e0
[  404.122241]  ? lock_downgrade+0x900/0x900
[  404.126393]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.131930]  cache_grow_begin+0xa5/0x8c0
[  404.135985]  ? do_raw_spin_unlock+0xa7/0x330
[  404.140395]  fallback_alloc+0x204/0x2e0
[  404.144371]  ____cache_alloc_node+0x1c7/0x1e0
[  404.148868]  kmem_cache_alloc_node+0xe3/0x730
[  404.153360]  ? ipv6_get_ifaddr+0x42e/0x620
[  404.157603]  __alloc_skb+0x119/0x770
[  404.161316]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.166598]  ? netdev_alloc_frag+0x1f0/0x1f0
[  404.171002]  ? lock_downgrade+0x900/0x900
[  404.175158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.180691]  ? refcount_sub_and_test_checked+0x203/0x310
[  404.186141]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  404.191594]  ? addrconf_rs_timer+0x690/0x690
[  404.196010]  ndisc_alloc_skb+0x144/0x340
[  404.200076]  ndisc_send_rs+0x331/0x6e0
[  404.204052]  addrconf_rs_timer+0x314/0x690
[  404.208287]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.212533]  call_timer_fn+0x272/0x920
[  404.216417]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.220650]  ? process_timeout+0x40/0x40
[  404.224711]  ? __run_timers+0x7da/0xc70
[  404.228697]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.233190]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.237678]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.241928]  ? lockdep_hardirqs_on+0x296/0x5b0
[  404.246508]  ? trace_hardirqs_on+0xbd/0x310
[  404.250839]  ? kasan_check_read+0x11/0x20
[  404.254983]  ? __run_timers+0x7da/0xc70
[  404.258965]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.264066]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.268314]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.272541]  __run_timers+0x7e5/0xc70
[  404.276350]  ? timer_fixup_init+0x70/0x70
[  404.280494]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  404.285507]  ? zap_class+0x640/0x640
[  404.289220]  ? enqueue_hrtimer+0x1a5/0x560
[  404.293452]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  404.298645]  ? find_held_lock+0x36/0x1c0
[  404.302717]  ? zap_class+0x640/0x640
[  404.306453]  ? pvclock_read_flags+0x160/0x160
[  404.310946]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.316479]  ? check_preemption_disabled+0x48/0x280
[  404.321503]  ? __lock_is_held+0xb5/0x140
[  404.325564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.331096]  ? check_preemption_disabled+0x48/0x280
[  404.336115]  run_timer_softirq+0x52/0xb0
[  404.340184]  ? rcu_read_lock_sched_held+0x14f/0x180
[  404.345200]  __do_softirq+0x308/0xb7e
[  404.349003]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  404.353495]  ? lock_downgrade+0x900/0x900
[  404.357640]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  404.362755]  ? pvclock_read_flags+0x160/0x160
[  404.367250]  ? lapic_next_event+0x5a/0x90
[  404.371503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.377043]  ? kvm_clock_read+0x18/0x30
[  404.381119]  ? kvm_sched_clock_read+0x9/0x20
[  404.385524]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.391058]  ? check_preemption_disabled+0x48/0x280
[  404.396079]  irq_exit+0x17f/0x1c0
[  404.399531]  smp_apic_timer_interrupt+0x1cb/0x760
[  404.404367]  ? smp_reschedule_interrupt+0x109/0x650
[  404.409379]  ? smp_call_function_single_interrupt+0x650/0x650
[  404.415339]  ? interrupt_entry+0xb5/0xc0
[  404.419396]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.424404]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.429416]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.434258]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.439272]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.444291]  ? task_prio+0x50/0x50
[  404.447826]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.453363]  ? check_preemption_disabled+0x48/0x280
[  404.458382]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.463229]  apic_timer_interrupt+0xf/0x20
[  404.467537]  </IRQ>
[  404.469780] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  404.474707] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  404.493731] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  404.501433] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  404.508705] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  404.515975] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  404.523235] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  404.530494] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  404.537796]  skb_clone+0x1bb/0x500
[  404.541336]  ? finish_task_switch+0x2f4/0x910
[  404.545826]  ? skb_split+0x11e0/0x11e0
[  404.549712]  ? preempt_notifier_register+0x200/0x200
[  404.554822]  ? __switch_to_asm+0x34/0x70
[  404.558879]  ? __switch_to_asm+0x34/0x70
[  404.562931]  ? __switch_to_asm+0x40/0x70
[  404.567009]  ? __switch_to_asm+0x34/0x70
[  404.571062]  ? __switch_to_asm+0x40/0x70
[  404.575116]  ? __switch_to_asm+0x34/0x70
[  404.579167]  ? __switch_to_asm+0x40/0x70
[  404.583223]  ? __switch_to_asm+0x34/0x70
[  404.587301]  ? __switch_to_asm+0x34/0x70
[  404.591372]  ? __switch_to_asm+0x40/0x70
[  404.595423]  ? __switch_to_asm+0x34/0x70
[  404.599503]  bpf_clone_redirect+0xb9/0x490
[  404.603738]  ? __schedule+0x8d7/0x21d0
[  404.607625]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  404.612659]  ? __sched_text_start+0x8/0x8
[  404.616806]  ? retint_kernel+0x2d/0x2d
[  404.620705]  ? find_held_lock+0x36/0x1c0
[  404.624777]  ? lock_acquire+0x1ed/0x520
[  404.628757]  ? bpf_test_run+0x3cb/0x780
[  404.632734]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.638297]  ? check_preemption_disabled+0x48/0x280
[  404.643321]  ? kasan_check_read+0x11/0x20
[  404.647464]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.652741]  ? rcu_softirq_qs+0x20/0x20
[  404.656801]  ? preempt_schedule+0x4d/0x60
[  404.660943]  ? ___preempt_schedule+0x16/0x18
[  404.665356]  ? bpf_test_run+0x25d/0x780
[  404.669340]  ? netlink_diag_dump+0x2a0/0x2a0
[  404.673752]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.679286]  ? bpf_test_init.isra.10+0x70/0x100
[  404.683959]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  404.688736]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  404.693580]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  404.699116]  ? fput+0x130/0x1a0
[  404.702394]  ? __bpf_prog_get+0x9b/0x290
[  404.706454]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  404.711291]  ? bpf_prog_test_run+0x130/0x1a0
[  404.715701]  ? __x64_sys_bpf+0x3d8/0x520
[  404.719767]  ? bpf_prog_get+0x20/0x20
[  404.723582]  ? do_syscall_64+0x1b9/0x820
[  404.727635]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  404.732996]  ? syscall_return_slowpath+0x5e0/0x5e0
[  404.738008]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.742938]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.747960]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  404.752977]  ? prepare_exit_to_usermode+0x291/0x3b0
[  404.757993]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.762926]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  404.768301] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  404.768365] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  404.775307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  404.775314] Call Trace:
[  404.781864] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  404.791121]  <IRQ>
[  404.793687] syz-executor2 cpuset=syz2 mems_allowed=0
[  404.804164]  dump_stack+0x244/0x39d
[  404.815095]  ? dump_stack_print_info.cold.1+0x20/0x20
[  404.820292]  warn_alloc.cold.116+0xb7/0x1bd
[  404.824617]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  404.829459]  ? lock_downgrade+0x900/0x900
[  404.833611]  ? trace_hardirqs_off+0xb8/0x310
[  404.838019]  ? trace_hardirqs_off+0xb8/0x310
[  404.842431]  __alloc_pages_slowpath+0x26e8/0x2e10
[  404.847295]  ? warn_alloc+0x120/0x120
[  404.851097]  ? print_usage_bug+0xc0/0xc0
[  404.855162]  ? warn_alloc+0x120/0x120
[  404.858976]  ? warn_alloc+0x120/0x120
[  404.862783]  ? print_usage_bug+0xc0/0xc0
[  404.866845]  ? print_usage_bug+0xc0/0xc0
[  404.870908]  ? __lock_acquire+0x62f/0x4c20
[  404.875146]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.880675]  ? should_fail+0x22d/0xd01
[  404.884567]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  404.889667]  ? __lock_acquire+0x62f/0x4c20
[  404.894352]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  404.899479]  ? __lock_acquire+0x62f/0x4c20
[  404.903713]  ? should_fail+0x22d/0xd01
[  404.907618]  ? find_held_lock+0x36/0x1c0
[  404.911681]  ? mark_held_locks+0x130/0x130
[  404.915926]  ? mark_held_locks+0x130/0x130
[  404.920156]  ? zap_class+0x640/0x640
[  404.923868]  ? zap_class+0x640/0x640
[  404.927578]  ? print_usage_bug+0xc0/0xc0
[  404.931631]  ? do_raw_spin_unlock+0xa7/0x330
[  404.936038]  ? zap_class+0x640/0x640
[  404.939755]  ? print_usage_bug+0xc0/0xc0
[  404.943814]  ? wq_watchdog_touch+0x9c/0xfe
[  404.948052]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.953586]  ? check_preemption_disabled+0x48/0x280
[  404.958607]  ? __lock_is_held+0xb5/0x140
[  404.962675]  __alloc_pages_nodemask+0xa80/0xde0
[  404.967344]  ? zap_class+0x640/0x640
[  404.971062]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  404.976086]  ? find_held_lock+0x36/0x1c0
[  404.980152]  ? ____cache_alloc_node+0x1c7/0x1e0
[  404.984815]  ? lock_downgrade+0x900/0x900
[  404.988965]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.994504]  cache_grow_begin+0xa5/0x8c0
[  404.998559]  ? do_raw_spin_unlock+0xa7/0x330
[  405.002969]  fallback_alloc+0x204/0x2e0
[  405.006956]  ____cache_alloc_node+0x1c7/0x1e0
[  405.011450]  kmem_cache_alloc_node+0xe3/0x730
[  405.015946]  ? ipv6_get_ifaddr+0x42e/0x620
[  405.020272]  __alloc_skb+0x119/0x770
[  405.023982]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.029254]  ? netdev_alloc_frag+0x1f0/0x1f0
[  405.033700]  ? lock_downgrade+0x900/0x900
[  405.037847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.043378]  ? refcount_sub_and_test_checked+0x203/0x310
[  405.048829]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  405.054272]  ? addrconf_rs_timer+0x690/0x690
[  405.058690]  ndisc_alloc_skb+0x144/0x340
[  405.063033]  ndisc_send_rs+0x331/0x6e0
[  405.066923]  addrconf_rs_timer+0x314/0x690
[  405.071160]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.075405]  call_timer_fn+0x272/0x920
[  405.079286]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.083525]  ? process_timeout+0x40/0x40
[  405.087590]  ? mark_held_locks+0xc7/0x130
[  405.091741]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.096226]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.100714]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.104989]  ? lockdep_hardirqs_on+0x296/0x5b0
[  405.109566]  ? trace_hardirqs_on+0xbd/0x310
[  405.113886]  ? kasan_check_read+0x11/0x20
[  405.118026]  ? __run_timers+0x7da/0xc70
[  405.122010]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.127108]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.131448]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.135670]  __run_timers+0x7e5/0xc70
[  405.139482]  ? timer_fixup_init+0x70/0x70
[  405.143629]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  405.148639]  ? zap_class+0x640/0x640
[  405.152354]  ? print_usage_bug+0xc0/0xc0
[  405.156411]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  405.161601]  ? find_held_lock+0x36/0x1c0
[  405.165658]  ? zap_class+0x640/0x640
[  405.169396]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.174931]  ? check_preemption_disabled+0x48/0x280
[  405.179963]  ? __lock_is_held+0xb5/0x140
[  405.184027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.189559]  ? check_preemption_disabled+0x48/0x280
[  405.194597]  run_timer_softirq+0x52/0xb0
[  405.198652]  ? rcu_read_lock_sched_held+0x14f/0x180
[  405.203676]  __do_softirq+0x308/0xb7e
[  405.207474]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  405.211963]  ? lock_downgrade+0x900/0x900
[  405.216226]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  405.221332]  ? pvclock_read_flags+0x160/0x160
[  405.225824]  ? lapic_next_event+0x5a/0x90
[  405.229965]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.235499]  ? kvm_clock_read+0x18/0x30
[  405.239468]  ? kvm_sched_clock_read+0x9/0x20
[  405.243872]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.249405]  ? check_preemption_disabled+0x48/0x280
[  405.254426]  irq_exit+0x17f/0x1c0
[  405.257984]  smp_apic_timer_interrupt+0x1cb/0x760
[  405.262826]  ? smp_call_function_single_interrupt+0x650/0x650
[  405.268702]  ? interrupt_entry+0xb5/0xc0
[  405.272760]  ? trace_hardirqs_off_caller+0xbb/0x310
[  405.277770]  ? trace_hardirqs_off_caller+0xbb/0x310
[  405.282792]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.287629]  ? trace_hardirqs_on_caller+0x310/0x310
[  405.292635]  ? trace_hardirqs_on_caller+0x310/0x310
[  405.297695]  ? task_prio+0x50/0x50
[  405.301233]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.306850]  ? check_preemption_disabled+0x48/0x280
[  405.311864]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.316730]  apic_timer_interrupt+0xf/0x20
[  405.320958]  </IRQ>
[  405.323193] RIP: 0010:dump_stack+0x358/0x39d
[  405.327612] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  405.346503] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  405.354207] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  405.361470] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  405.368731] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  405.376007] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  405.383271] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  405.390551]  ? dump_stack+0x34f/0x39d
[  405.394360]  ? dump_stack_print_info.cold.1+0x20/0x20
[  405.399546]  ? mark_held_locks+0x130/0x130
[  405.403777]  ? mark_held_locks+0x130/0x130
[  405.408012]  dump_header+0x27b/0xf72
[  405.411737]  ? pagefault_out_of_memory+0x197/0x197
[  405.416693]  ? __lock_acquire+0x62f/0x4c20
[  405.420930]  ? percpu_ref_get_many+0x240/0x240
[  405.425525]  ? print_usage_bug+0xc0/0xc0
[  405.429589]  ? zap_class+0x640/0x640
[  405.433298]  ? print_usage_bug+0xc0/0xc0
[  405.437349]  ? print_usage_bug+0xc0/0xc0
[  405.441420]  ? zap_class+0x640/0x640
[  405.445129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.450672]  ? find_held_lock+0x36/0x1c0
[  405.454744]  ? mark_held_locks+0xc7/0x130
[  405.458885]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  405.463984]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  405.469168]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  405.473746]  ? trace_hardirqs_on+0xbd/0x310
[  405.478061]  ? kasan_check_read+0x11/0x20
[  405.482206]  ? ___ratelimit+0x3b4/0x672
[  405.486176]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.491274]  ? trace_hardirqs_on+0x310/0x310
[  405.495680]  ? lock_downgrade+0x900/0x900
[  405.499832]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  405.504929]  ? ___ratelimit+0x3b9/0x672
[  405.508903]  ? idr_get_free+0xf70/0xf70
[  405.512874]  ? find_held_lock+0x36/0x1c0
[  405.517031]  oom_kill_process.cold.27+0x10/0x903
[  405.521792]  ? zap_class+0x640/0x640
[  405.525505]  ? check_preemption_disabled+0x48/0x280
[  405.530525]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.535448]  ? kasan_check_read+0x11/0x20
[  405.539590]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.544860]  ? oom_evaluate_task+0x540/0x540
[  405.549271]  ? find_held_lock+0x36/0x1c0
[  405.553333]  ? out_of_memory+0x974/0x1430
[  405.557479]  ? lock_downgrade+0x900/0x900
[  405.561623]  ? check_preemption_disabled+0x48/0x280
[  405.566655]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.571576]  ? kasan_check_read+0x11/0x20
[  405.575725]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.580997]  ? rcu_softirq_qs+0x20/0x20
[  405.584969]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.590502]  ? oom_evaluate_task+0x302/0x540
[  405.594911]  out_of_memory+0xa84/0x1430
[  405.598893]  ? oom_killer_disable+0x3a0/0x3a0
[  405.603386]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  405.608314]  ? __ww_mutex_check_waiters+0x160/0x160
[  405.613341]  __alloc_pages_slowpath+0x2354/0x2e10
[  405.618206]  ? warn_alloc+0x120/0x120
[  405.622001]  ? mark_held_locks+0x130/0x130
[  405.626238]  ? find_get_entry+0xaae/0x1120
[  405.630480]  ? filemap_map_pages+0x1a20/0x1a20
[  405.635066]  ? zap_class+0x640/0x640
[  405.638789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.644321]  ? check_preemption_disabled+0x48/0x280
[  405.649339]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.654874]  ? should_fail+0x22d/0xd01
[  405.658775]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.663884]  ? zap_class+0x640/0x640
[  405.667613]  ? __lock_is_held+0xb5/0x140
[  405.671680]  ? mark_held_locks+0x130/0x130
[  405.675917]  ? lock_release+0xa00/0xa00
[  405.679912]  ? perf_trace_sched_process_exec+0x860/0x860
[  405.685355]  ? xa_load+0x2ba/0x460
[  405.688896]  ? lock_downgrade+0x900/0x900
[  405.693044]  ? __might_sleep+0x95/0x190
[  405.697017]  __alloc_pages_nodemask+0xa80/0xde0
[  405.701695]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  405.706707]  ? __page_cache_alloc+0x191/0x5c0
[  405.711194]  ? xa_load+0x2e1/0x460
[  405.714730]  ? xa_clear_mark+0x40/0x40
[  405.718613]  ? zap_class+0x640/0x640
[  405.722338]  ? zap_class+0x640/0x640
[  405.726047]  ? zap_class+0x640/0x640
[  405.729759]  ? __do_page_cache_readahead+0x663/0x810
[  405.734863]  ? find_held_lock+0x36/0x1c0
[  405.738927]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  405.744468]  alloc_pages_current+0x173/0x350
[  405.748877]  __page_cache_alloc+0x38c/0x5c0
[  405.753198]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.758121]  ? kasan_check_read+0x11/0x20
[  405.762263]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.767552]  ? generic_perform_write+0x6a0/0x6a0
[  405.772303]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.777836]  ? check_preemption_disabled+0x48/0x280
[  405.782855]  filemap_fault+0x1595/0x25f0
[  405.786925]  ? __lock_page_or_retry+0xa00/0xa00
[  405.791590]  ? mark_held_locks+0x130/0x130
[  405.795833]  ? filemap_map_pages+0xd6b/0x1a20
[  405.800326]  ? lock_downgrade+0x900/0x900
[  405.804468]  ? check_preemption_disabled+0x48/0x280
[  405.809482]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.814408]  ? kasan_check_read+0x11/0x20
[  405.818554]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.823826]  ? rcu_softirq_qs+0x20/0x20
[  405.827810]  ? filemap_map_pages+0xd92/0x1a20
[  405.832314]  ? find_get_entries_tag+0x1400/0x1400
[  405.837151]  ? find_held_lock+0x36/0x1c0
[  405.841230]  ? lock_acquire+0x1ed/0x520
[  405.845199]  ? ext4_filemap_fault+0x7a/0xad
[  405.849523]  ? lock_release+0xa00/0xa00
[  405.853492]  ? perf_trace_sched_process_exec+0x860/0x860
[  405.858938]  ? print_usage_bug+0xc0/0xc0
[  405.863011]  ? down_read+0x8d/0x120
[  405.866635]  ? ext4_filemap_fault+0x7a/0xad
[  405.870957]  ? __down_interruptible+0x700/0x700
[  405.875633]  ? find_held_lock+0x36/0x1c0
[  405.879696]  ext4_filemap_fault+0x82/0xad
[  405.883841]  __do_fault+0x100/0x6b0
[  405.887464]  ? lock_downgrade+0x900/0x900
[  405.891620]  ? pmd_devmap_trans_unstable+0x220/0x220
[  405.896722]  ? kasan_check_read+0x11/0x20
[  405.900886]  ? do_raw_spin_unlock+0xa7/0x330
[  405.905288]  ? do_raw_spin_trylock+0x270/0x270
[  405.909877]  __handle_mm_fault+0x3ea0/0x5be0
[  405.914281]  ? perf_trace_lock+0x7a0/0x7a0
[  405.918519]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  405.923361]  ? __switch_to_asm+0x34/0x70
[  405.927425]  ? __switch_to_asm+0x34/0x70
[  405.931496]  ? zap_class+0x640/0x640
[  405.935204]  ? zap_class+0x640/0x640
[  405.938914]  ? __x64_sys_futex+0x53e/0x6a0
[  405.943148]  ? find_held_lock+0x36/0x1c0
[  405.947217]  ? handle_mm_fault+0x42a/0xc70
[  405.951448]  ? lock_downgrade+0x900/0x900
[  405.955591]  ? check_preemption_disabled+0x48/0x280
[  405.960620]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  405.965541]  ? kasan_check_read+0x11/0x20
[  405.969690]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.974970]  ? rcu_softirq_qs+0x20/0x20
[  405.978941]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.984040]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.989571]  ? check_preemption_disabled+0x48/0x280
[  405.994589]  handle_mm_fault+0x54f/0xc70
[  405.998661]  ? __handle_mm_fault+0x5be0/0x5be0
[  406.003246]  ? find_vma+0x34/0x190
[  406.006788]  __do_page_fault+0x5e8/0xe60
[  406.010867]  ? trace_hardirqs_off+0xb8/0x310
[  406.015281]  do_page_fault+0xf2/0x7e0
[  406.019084]  ? vmalloc_sync_all+0x30/0x30
[  406.023226]  ? error_entry+0x70/0xd0
[  406.026936]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.031946]  ? trace_hardirqs_on_caller+0xc0/0x310
[  406.036874]  ? syscall_return_slowpath+0x5e0/0x5e0
[  406.041797]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.046644]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.051667]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  406.057118]  ? prepare_exit_to_usermode+0x291/0x3b0
[  406.062126]  ? page_fault+0x8/0x30
[  406.065672]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.070516]  ? page_fault+0x8/0x30
[  406.074052]  page_fault+0x1e/0x30
[  406.077498] RIP: 0033:0x404068
[  406.080699] Code: Bad RIP value.
[  406.084055] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  406.089413] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  406.096680] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  406.103941] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  406.111202] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  406.118463] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  406.125751] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  406.125756] warn_alloc_show_mem: 1 callbacks suppressed
[  406.125762] Mem-Info:
[  406.133140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  406.138513] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  406.138513]  active_file:13 inactive_file:13 isolated_file:0
[  406.138513]  unevictable:0 dirty:0 writeback:0 unstable:0
[  406.138513]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  406.138513]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  406.138513]  free:13747 free_pcp:348 free_cma:0
[  406.140885] Call Trace:
[  406.150259] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  406.183269]  <IRQ>
[  406.185832] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  406.213669]  dump_stack+0x244/0x39d
[  406.215790] lowmem_reserve[]: 0 2818 6321 6321
[  406.241979]  ? dump_stack_print_info.cold.1+0x20/0x20
[  406.245573] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  406.250167]  warn_alloc.cold.116+0xb7/0x1bd
[  406.255314] lowmem_reserve[]: 0 0 3503 3503
[  406.282822]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  406.287114] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  406.291430]  ? lock_downgrade+0x900/0x900
[  406.296254] lowmem_reserve[]: 0 0 0 0
[  406.325395]  ? trace_hardirqs_off+0xb8/0x310
[  406.329516] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  406.333310]  ? trace_hardirqs_off+0xb8/0x310
[  406.337690] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  406.351236]  __alloc_pages_slowpath+0x26e8/0x2e10
[  406.355612] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  406.370537]  ? warn_alloc+0x120/0x120
[  406.375334] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  406.390487]  ? print_usage_bug+0xc0/0xc0
[  406.394268] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  406.403083]  ? warn_alloc+0x120/0x120
[  406.407113] 4484 total pagecache pages
[  406.415680]  ? warn_alloc+0x120/0x120
[  406.419458] 0 pages in swap cache
[  406.423323]  ? print_usage_bug+0xc0/0xc0
[  406.427092] Swap cache stats: add 0, delete 0, find 0/0
[  406.427099] Free swap  = 0kB
[  406.430543]  ? kvm_clock_read+0x18/0x30
[  406.434583] Total swap = 0kB
[  406.439934]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  406.442922] 1965979 pages RAM
[  406.446887]  ? print_usage_bug+0xc0/0xc0
[  406.449877] 0 pages HighMem/MovableOnly
[  406.454882]  ? __lock_acquire+0x62f/0x4c20
[  406.457957] 342854 pages reserved
[  406.462007]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.465949] 0 pages cma reserved
[  406.470175]  ? should_fail+0x22d/0xd01
[  406.473655] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  406.479127]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.479144]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.479160]  ? __lock_acquire+0x62f/0x4c20
[  406.482556] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  406.486375]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.492838] syz-fuzzer cpuset=/ mems_allowed=0
[  406.498097]  ? __lock_acquire+0x62f/0x4c20
[  406.498112]  ? should_fail+0x22d/0xd01
[  406.535372]  ? rcu_irq_exit+0x1a2/0x390
[  406.539350]  ? mark_held_locks+0x130/0x130
[  406.543594]  ? mark_held_locks+0x130/0x130
[  406.547829]  ? mark_held_locks+0xc7/0x130
[  406.551975]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  406.556991]  ? zap_class+0x640/0x640
[  406.560704]  ? print_usage_bug+0xc0/0xc0
[  406.564777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.570313]  ? check_preemption_disabled+0x48/0x280
[  406.575335]  ? __lock_is_held+0xb5/0x140
[  406.579407]  __alloc_pages_nodemask+0xa80/0xde0
[  406.584071]  ? zap_class+0x640/0x640
[  406.587958]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  406.592980]  ? find_held_lock+0x36/0x1c0
[  406.597046]  ? ____cache_alloc_node+0x1c7/0x1e0
[  406.601711]  ? lock_downgrade+0x900/0x900
[  406.605861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.611399]  cache_grow_begin+0xa5/0x8c0
[  406.615456]  ? do_raw_spin_unlock+0xa7/0x330
[  406.619866]  fallback_alloc+0x204/0x2e0
[  406.623843]  ____cache_alloc_node+0x1c7/0x1e0
[  406.628342]  kmem_cache_alloc_node+0xe3/0x730
[  406.632833]  ? ipv6_get_ifaddr+0x42e/0x620
[  406.637075]  __alloc_skb+0x119/0x770
[  406.640811]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.646092]  ? netdev_alloc_frag+0x1f0/0x1f0
[  406.650509]  ? lock_downgrade+0x900/0x900
[  406.654661]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.660196]  ? refcount_sub_and_test_checked+0x203/0x310
[  406.665646]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  406.671093]  ? addrconf_rs_timer+0x690/0x690
[  406.675510]  ndisc_alloc_skb+0x144/0x340
[  406.679579]  ndisc_send_rs+0x331/0x6e0
[  406.683467]  addrconf_rs_timer+0x314/0x690
[  406.687705]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.691946]  call_timer_fn+0x272/0x920
[  406.695832]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.700068]  ? process_timeout+0x40/0x40
[  406.704139]  ? __run_timers+0x7da/0xc70
[  406.708128]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.712622]  ? _raw_spin_unlock_irq+0x27/0x80
[  406.717120]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.721351]  ? lockdep_hardirqs_on+0x296/0x5b0
[  406.725934]  ? trace_hardirqs_on+0xbd/0x310
[  406.730252]  ? kasan_check_read+0x11/0x20
[  406.734406]  ? __run_timers+0x7da/0xc70
[  406.738377]  ? trace_hardirqs_off_caller+0x310/0x310
[  406.743480]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.747717]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  406.751947]  __run_timers+0x7e5/0xc70
[  406.755756]  ? timer_fixup_init+0x70/0x70
[  406.759989]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  406.765001]  ? zap_class+0x640/0x640
[  406.768739]  ? enqueue_hrtimer+0x1a5/0x560
[  406.772975]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  406.778169]  ? find_held_lock+0x36/0x1c0
[  406.782234]  ? zap_class+0x640/0x640
[  406.785949]  ? pvclock_read_flags+0x160/0x160
[  406.790440]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.795972]  ? check_preemption_disabled+0x48/0x280
[  406.800993]  ? __lock_is_held+0xb5/0x140
[  406.805050]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.810583]  ? check_preemption_disabled+0x48/0x280
[  406.815608]  run_timer_softirq+0x52/0xb0
[  406.819674]  ? rcu_read_lock_sched_held+0x14f/0x180
[  406.824685]  __do_softirq+0x308/0xb7e
[  406.828486]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  406.832974]  ? lock_downgrade+0x900/0x900
[  406.837124]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  406.842230]  ? pvclock_read_flags+0x160/0x160
[  406.846722]  ? lapic_next_event+0x5a/0x90
[  406.850869]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.856409]  ? kvm_clock_read+0x18/0x30
[  406.860377]  ? kvm_sched_clock_read+0x9/0x20
[  406.864783]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.870318]  ? check_preemption_disabled+0x48/0x280
[  406.875341]  irq_exit+0x17f/0x1c0
[  406.878796]  smp_apic_timer_interrupt+0x1cb/0x760
[  406.883648]  ? smp_reschedule_interrupt+0x109/0x650
[  406.888663]  ? smp_call_function_single_interrupt+0x650/0x650
[  406.895040]  ? interrupt_entry+0xb5/0xc0
[  406.899109]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.904120]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.909136]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.913994]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.919019]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.924033]  ? task_prio+0x50/0x50
[  406.927572]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.933111]  ? check_preemption_disabled+0x48/0x280
[  406.938131]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.942977]  apic_timer_interrupt+0xf/0x20
[  406.947199]  </IRQ>
[  406.949437] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  406.954362] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  406.973259] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  406.980960] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  406.988224] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  406.995490] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  407.002755] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  407.010017] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  407.017332]  skb_clone+0x1bb/0x500
[  407.020872]  ? finish_task_switch+0x2f4/0x910
[  407.025375]  ? skb_split+0x11e0/0x11e0
[  407.029260]  ? preempt_notifier_register+0x200/0x200
[  407.034359]  ? __switch_to_asm+0x34/0x70
[  407.038415]  ? __switch_to_asm+0x34/0x70
[  407.042473]  ? __switch_to_asm+0x40/0x70
[  407.046535]  ? __switch_to_asm+0x34/0x70
[  407.050588]  ? __switch_to_asm+0x40/0x70
[  407.054653]  ? __switch_to_asm+0x34/0x70
[  407.058709]  ? __switch_to_asm+0x40/0x70
[  407.063280]  ? __switch_to_asm+0x34/0x70
[  407.067339]  ? __switch_to_asm+0x34/0x70
[  407.071394]  ? __switch_to_asm+0x40/0x70
[  407.075449]  ? __switch_to_asm+0x34/0x70
[  407.079514]  bpf_clone_redirect+0xb9/0x490
[  407.083757]  ? __schedule+0x8d7/0x21d0
[  407.087649]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  407.092662]  ? __sched_text_start+0x8/0x8
[  407.096804]  ? retint_kernel+0x2d/0x2d
[  407.100698]  ? find_held_lock+0x36/0x1c0
[  407.104762]  ? lock_acquire+0x1ed/0x520
[  407.108732]  ? bpf_test_run+0x3cb/0x780
[  407.112703]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.118241]  ? check_preemption_disabled+0x48/0x280
[  407.123260]  ? kasan_check_read+0x11/0x20
[  407.127406]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.132683]  ? rcu_softirq_qs+0x20/0x20
[  407.136744]  ? preempt_schedule+0x4d/0x60
[  407.140888]  ? ___preempt_schedule+0x16/0x18
[  407.145302]  ? bpf_test_run+0x25d/0x780
[  407.149286]  ? netlink_diag_dump+0x2a0/0x2a0
[  407.153697]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.159238]  ? bpf_test_init.isra.10+0x70/0x100
[  407.163906]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  407.168669]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  407.173505]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  407.179048]  ? fput+0x130/0x1a0
[  407.182331]  ? __bpf_prog_get+0x9b/0x290
[  407.186391]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  407.191228]  ? bpf_prog_test_run+0x130/0x1a0
[  407.195635]  ? __x64_sys_bpf+0x3d8/0x520
[  407.199693]  ? bpf_prog_get+0x20/0x20
[  407.203513]  ? do_syscall_64+0x1b9/0x820
[  407.207573]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  407.212935]  ? syscall_return_slowpath+0x5e0/0x5e0
[  407.217863]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.222704]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.227718]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  407.232735]  ? prepare_exit_to_usermode+0x291/0x3b0
[  407.237755]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.242603]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  407.247985] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  407.248052] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  407.254994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  407.255001] Call Trace:
[  407.261583] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  407.270813]  <IRQ>
[  407.273378] syz-executor2 cpuset=syz2 mems_allowed=0
[  407.283854]  dump_stack+0x244/0x39d
[  407.294765]  ? dump_stack_print_info.cold.1+0x20/0x20
[  407.299963]  warn_alloc.cold.116+0xb7/0x1bd
[  407.304286]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  407.309134]  ? lock_downgrade+0x900/0x900
[  407.313284]  ? trace_hardirqs_off+0xb8/0x310
[  407.317694]  ? trace_hardirqs_off+0xb8/0x310
[  407.322106]  __alloc_pages_slowpath+0x26e8/0x2e10
[  407.326970]  ? warn_alloc+0x120/0x120
[  407.330772]  ? print_usage_bug+0xc0/0xc0
[  407.334830]  ? warn_alloc+0x120/0x120
[  407.338629]  ? warn_alloc+0x120/0x120
[  407.342426]  ? print_usage_bug+0xc0/0xc0
[  407.346580]  ? print_usage_bug+0xc0/0xc0
[  407.350641]  ? __lock_acquire+0x62f/0x4c20
[  407.354878]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.360411]  ? should_fail+0x22d/0xd01
[  407.364301]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.369406]  ? __lock_acquire+0x62f/0x4c20
[  407.373644]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.378741]  ? __lock_acquire+0x62f/0x4c20
[  407.382971]  ? should_fail+0x22d/0xd01
[  407.386852]  ? find_held_lock+0x36/0x1c0
[  407.391009]  ? mark_held_locks+0x130/0x130
[  407.395253]  ? mark_held_locks+0x130/0x130
[  407.399481]  ? zap_class+0x640/0x640
[  407.403196]  ? zap_class+0x640/0x640
[  407.406907]  ? print_usage_bug+0xc0/0xc0
[  407.410961]  ? do_raw_spin_unlock+0xa7/0x330
[  407.415368]  ? zap_class+0x640/0x640
[  407.419076]  ? print_usage_bug+0xc0/0xc0
[  407.423134]  ? wq_watchdog_touch+0x9c/0xfe
[  407.427373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.432910]  ? check_preemption_disabled+0x48/0x280
[  407.437933]  ? __lock_is_held+0xb5/0x140
[  407.441998]  __alloc_pages_nodemask+0xa80/0xde0
[  407.446661]  ? zap_class+0x640/0x640
[  407.450378]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  407.455405]  ? find_held_lock+0x36/0x1c0
[  407.459475]  ? ____cache_alloc_node+0x1c7/0x1e0
[  407.464146]  ? lock_downgrade+0x900/0x900
[  407.468299]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.473840]  cache_grow_begin+0xa5/0x8c0
[  407.477996]  ? do_raw_spin_unlock+0xa7/0x330
[  407.482412]  fallback_alloc+0x204/0x2e0
[  407.486389]  ____cache_alloc_node+0x1c7/0x1e0
[  407.490888]  kmem_cache_alloc_node+0xe3/0x730
[  407.495378]  ? ipv6_get_ifaddr+0x42e/0x620
[  407.499618]  __alloc_skb+0x119/0x770
[  407.503329]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.508602]  ? netdev_alloc_frag+0x1f0/0x1f0
[  407.513010]  ? lock_downgrade+0x900/0x900
[  407.517250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.522787]  ? refcount_sub_and_test_checked+0x203/0x310
[  407.528237]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  407.533683]  ? addrconf_rs_timer+0x690/0x690
[  407.538102]  ndisc_alloc_skb+0x144/0x340
[  407.542168]  ndisc_send_rs+0x331/0x6e0
[  407.546056]  addrconf_rs_timer+0x314/0x690
[  407.550290]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.554538]  call_timer_fn+0x272/0x920
[  407.558418]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.562664]  ? process_timeout+0x40/0x40
[  407.566734]  ? mark_held_locks+0xc7/0x130
[  407.570891]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.575383]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.579875]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.584105]  ? lockdep_hardirqs_on+0x296/0x5b0
[  407.588682]  ? trace_hardirqs_on+0xbd/0x310
[  407.593085]  ? kasan_check_read+0x11/0x20
[  407.597224]  ? __run_timers+0x7da/0xc70
[  407.601193]  ? trace_hardirqs_off_caller+0x310/0x310
[  407.606294]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.610535]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.614763]  __run_timers+0x7e5/0xc70
[  407.618568]  ? timer_fixup_init+0x70/0x70
[  407.622714]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  407.627732]  ? zap_class+0x640/0x640
[  407.631449]  ? print_usage_bug+0xc0/0xc0
[  407.635518]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  407.640716]  ? find_held_lock+0x36/0x1c0
[  407.644777]  ? zap_class+0x640/0x640
[  407.648497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.654033]  ? check_preemption_disabled+0x48/0x280
[  407.659052]  ? __lock_is_held+0xb5/0x140
[  407.663112]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.668644]  ? check_preemption_disabled+0x48/0x280
[  407.673663]  run_timer_softirq+0x52/0xb0
[  407.677724]  ? rcu_read_lock_sched_held+0x14f/0x180
[  407.682747]  __do_softirq+0x308/0xb7e
[  407.686553]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  407.691044]  ? lock_downgrade+0x900/0x900
[  407.695193]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  407.700301]  ? pvclock_read_flags+0x160/0x160
[  407.704792]  ? lapic_next_event+0x5a/0x90
[  407.708938]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.714481]  ? kvm_clock_read+0x18/0x30
[  407.718450]  ? kvm_sched_clock_read+0x9/0x20
[  407.722861]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.728398]  ? check_preemption_disabled+0x48/0x280
[  407.733422]  irq_exit+0x17f/0x1c0
[  407.736873]  smp_apic_timer_interrupt+0x1cb/0x760
[  407.741713]  ? smp_call_function_single_interrupt+0x650/0x650
[  407.747595]  ? interrupt_entry+0xb5/0xc0
[  407.751655]  ? trace_hardirqs_off_caller+0xbb/0x310
[  407.756668]  ? trace_hardirqs_off_caller+0xbb/0x310
[  407.761692]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.766540]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.771553]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.776563]  ? task_prio+0x50/0x50
[  407.780103]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.785637]  ? check_preemption_disabled+0x48/0x280
[  407.790657]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.795508]  apic_timer_interrupt+0xf/0x20
[  407.799734]  </IRQ>
[  407.801970] RIP: 0010:dump_stack+0x358/0x39d
[  407.806375] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  407.825269] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  407.832973] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  407.840236] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  407.847497] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  407.854766] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  407.862046] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  407.869324]  ? dump_stack+0x34f/0x39d
[  407.873135]  ? dump_stack_print_info.cold.1+0x20/0x20
[  407.878405]  ? mark_held_locks+0x130/0x130
[  407.882635]  ? mark_held_locks+0x130/0x130
[  407.886868]  dump_header+0x27b/0xf72
[  407.890591]  ? pagefault_out_of_memory+0x197/0x197
[  407.895528]  ? __lock_acquire+0x62f/0x4c20
[  407.899761]  ? percpu_ref_get_many+0x240/0x240
[  407.904340]  ? print_usage_bug+0xc0/0xc0
[  407.908402]  ? zap_class+0x640/0x640
[  407.912116]  ? print_usage_bug+0xc0/0xc0
[  407.916174]  ? print_usage_bug+0xc0/0xc0
[  407.920231]  ? zap_class+0x640/0x640
[  407.923943]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.929487]  ? find_held_lock+0x36/0x1c0
[  407.933559]  ? mark_held_locks+0xc7/0x130
[  407.937703]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  407.942799]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  407.947910]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  407.952494]  ? trace_hardirqs_on+0xbd/0x310
[  407.956815]  ? kasan_check_read+0x11/0x20
[  407.960967]  ? ___ratelimit+0x3b4/0x672
[  407.964937]  ? trace_hardirqs_off_caller+0x310/0x310
[  407.970050]  ? trace_hardirqs_on+0x310/0x310
[  407.974463]  ? lock_downgrade+0x900/0x900
[  407.978614]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  407.983727]  ? ___ratelimit+0x3b9/0x672
[  407.987701]  ? idr_get_free+0xf70/0xf70
[  407.991674]  ? find_held_lock+0x36/0x1c0
[  407.995741]  oom_kill_process.cold.27+0x10/0x903
[  408.000492]  ? zap_class+0x640/0x640
[  408.004214]  ? check_preemption_disabled+0x48/0x280
[  408.009232]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.014157]  ? kasan_check_read+0x11/0x20
[  408.018304]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.023579]  ? oom_evaluate_task+0x540/0x540
[  408.027987]  ? find_held_lock+0x36/0x1c0
[  408.032055]  ? out_of_memory+0x974/0x1430
[  408.036202]  ? lock_downgrade+0x900/0x900
[  408.040346]  ? check_preemption_disabled+0x48/0x280
[  408.045359]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.050284]  ? kasan_check_read+0x11/0x20
[  408.054426]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.059701]  ? rcu_softirq_qs+0x20/0x20
[  408.063672]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.069201]  ? oom_evaluate_task+0x302/0x540
[  408.073613]  out_of_memory+0xa84/0x1430
[  408.077590]  ? oom_killer_disable+0x3a0/0x3a0
[  408.082102]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  408.087034]  ? __ww_mutex_check_waiters+0x160/0x160
[  408.092056]  __alloc_pages_slowpath+0x2354/0x2e10
[  408.096919]  ? warn_alloc+0x120/0x120
[  408.100713]  ? mark_held_locks+0x130/0x130
[  408.104946]  ? find_get_entry+0xaae/0x1120
[  408.109183]  ? filemap_map_pages+0x1a20/0x1a20
[  408.113764]  ? zap_class+0x640/0x640
[  408.117481]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.123027]  ? check_preemption_disabled+0x48/0x280
[  408.128040]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.133573]  ? should_fail+0x22d/0xd01
[  408.137467]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.142572]  ? zap_class+0x640/0x640
[  408.146390]  ? __lock_is_held+0xb5/0x140
[  408.150465]  ? mark_held_locks+0x130/0x130
[  408.154700]  ? lock_release+0xa00/0xa00
[  408.158668]  ? perf_trace_sched_process_exec+0x860/0x860
[  408.164125]  ? xa_load+0x2ba/0x460
[  408.167689]  ? lock_downgrade+0x900/0x900
[  408.171842]  ? __might_sleep+0x95/0x190
[  408.175814]  __alloc_pages_nodemask+0xa80/0xde0
[  408.180493]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  408.185516]  ? __page_cache_alloc+0x191/0x5c0
[  408.190012]  ? xa_load+0x2e1/0x460
[  408.193547]  ? xa_clear_mark+0x40/0x40
[  408.197438]  ? zap_class+0x640/0x640
[  408.201154]  ? zap_class+0x640/0x640
[  408.204863]  ? zap_class+0x640/0x640
[  408.208575]  ? __do_page_cache_readahead+0x663/0x810
[  408.213679]  ? find_held_lock+0x36/0x1c0
[  408.217739]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  408.223384]  alloc_pages_current+0x173/0x350
[  408.227796]  __page_cache_alloc+0x38c/0x5c0
[  408.232111]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.237034]  ? kasan_check_read+0x11/0x20
[  408.241174]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.246455]  ? generic_perform_write+0x6a0/0x6a0
[  408.251209]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.256823]  ? check_preemption_disabled+0x48/0x280
[  408.261841]  filemap_fault+0x1595/0x25f0
[  408.265909]  ? __lock_page_or_retry+0xa00/0xa00
[  408.270579]  ? mark_held_locks+0x130/0x130
[  408.274819]  ? filemap_map_pages+0xd6b/0x1a20
[  408.279314]  ? lock_downgrade+0x900/0x900
[  408.283457]  ? check_preemption_disabled+0x48/0x280
[  408.288479]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.293415]  ? kasan_check_read+0x11/0x20
[  408.297568]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.302839]  ? rcu_softirq_qs+0x20/0x20
[  408.306820]  ? filemap_map_pages+0xd92/0x1a20
[  408.311340]  ? find_get_entries_tag+0x1400/0x1400
[  408.316174]  ? find_held_lock+0x36/0x1c0
[  408.320253]  ? lock_acquire+0x1ed/0x520
[  408.324224]  ? ext4_filemap_fault+0x7a/0xad
[  408.328544]  ? lock_release+0xa00/0xa00
[  408.332533]  ? perf_trace_sched_process_exec+0x860/0x860
[  408.337977]  ? print_usage_bug+0xc0/0xc0
[  408.342048]  ? down_read+0x8d/0x120
[  408.345670]  ? ext4_filemap_fault+0x7a/0xad
[  408.349987]  ? __down_interruptible+0x700/0x700
[  408.354743]  ? find_held_lock+0x36/0x1c0
[  408.358806]  ext4_filemap_fault+0x82/0xad
[  408.362956]  __do_fault+0x100/0x6b0
[  408.366580]  ? lock_downgrade+0x900/0x900
[  408.370727]  ? pmd_devmap_trans_unstable+0x220/0x220
[  408.375829]  ? kasan_check_read+0x11/0x20
[  408.379972]  ? do_raw_spin_unlock+0xa7/0x330
[  408.384382]  ? do_raw_spin_trylock+0x270/0x270
[  408.388977]  __handle_mm_fault+0x3ea0/0x5be0
[  408.393379]  ? perf_trace_lock+0x7a0/0x7a0
[  408.397630]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  408.402481]  ? __switch_to_asm+0x34/0x70
[  408.406538]  ? __switch_to_asm+0x34/0x70
[  408.410610]  ? zap_class+0x640/0x640
[  408.414318]  ? zap_class+0x640/0x640
[  408.418041]  ? __x64_sys_futex+0x53e/0x6a0
[  408.422276]  ? find_held_lock+0x36/0x1c0
[  408.426340]  ? handle_mm_fault+0x42a/0xc70
[  408.430573]  ? lock_downgrade+0x900/0x900
[  408.434716]  ? check_preemption_disabled+0x48/0x280
[  408.439836]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.444762]  ? kasan_check_read+0x11/0x20
[  408.448904]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.454189]  ? rcu_softirq_qs+0x20/0x20
[  408.458161]  ? trace_hardirqs_off_caller+0x310/0x310
[  408.463274]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.468806]  ? check_preemption_disabled+0x48/0x280
[  408.473823]  handle_mm_fault+0x54f/0xc70
[  408.477881]  ? __handle_mm_fault+0x5be0/0x5be0
[  408.482468]  ? find_vma+0x34/0x190
[  408.486009]  __do_page_fault+0x5e8/0xe60
[  408.490062]  ? trace_hardirqs_off+0xb8/0x310
[  408.494482]  do_page_fault+0xf2/0x7e0
[  408.498280]  ? vmalloc_sync_all+0x30/0x30
[  408.502427]  ? error_entry+0x70/0xd0
[  408.506141]  ? trace_hardirqs_off_caller+0xbb/0x310
[  408.511153]  ? trace_hardirqs_on_caller+0xc0/0x310
[  408.516081]  ? syscall_return_slowpath+0x5e0/0x5e0
[  408.521006]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.525848]  ? trace_hardirqs_on_caller+0x310/0x310
[  408.530869]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  408.536319]  ? prepare_exit_to_usermode+0x291/0x3b0
[  408.541333]  ? page_fault+0x8/0x30
[  408.544870]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.549709]  ? page_fault+0x8/0x30
[  408.553245]  page_fault+0x1e/0x30
[  408.556690] RIP: 0033:0x404068
[  408.559891] Code: Bad RIP value.
[  408.563252] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  408.568607] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  408.575868] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  408.583129] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  408.590401] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  408.597661] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  408.604953] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  408.604957] warn_alloc_show_mem: 1 callbacks suppressed
[  408.604963] Mem-Info:
[  408.612311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  408.617685] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  408.617685]  active_file:13 inactive_file:13 isolated_file:0
[  408.617685]  unevictable:0 dirty:0 writeback:0 unstable:0
[  408.617685]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  408.617685]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  408.617685]  free:13747 free_pcp:348 free_cma:0
[  408.620055] Call Trace:
[  408.629434] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  408.662450]  <IRQ>
[  408.665035] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  408.692962]  dump_stack+0x244/0x39d
[  408.695080] lowmem_reserve[]: 0 2818 6321 6321
[  408.721178]  ? dump_stack_print_info.cold.1+0x20/0x20
[  408.724774] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  408.729355]  warn_alloc.cold.116+0xb7/0x1bd
[  408.734508] lowmem_reserve[]: 0 0 3503 3503
[  408.761994]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  408.766289] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  408.770607]  ? lock_downgrade+0x900/0x900
[  408.775420] lowmem_reserve[]: 0 0 0 0
[  408.804563]  ? trace_hardirqs_off+0xb8/0x310
[  408.808677] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  408.812471]  ? trace_hardirqs_off+0xb8/0x310
[  408.816848] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  408.830399]  __alloc_pages_slowpath+0x26e8/0x2e10
[  408.834786] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  408.849713]  ? warn_alloc+0x120/0x120
[  408.854557] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  408.869710]  ? print_usage_bug+0xc0/0xc0
[  408.873484] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  408.882301]  ? warn_alloc+0x120/0x120
[  408.886334] 4484 total pagecache pages
[  408.895286]  ? warn_alloc+0x120/0x120
[  408.899073] 0 pages in swap cache
[  408.902946]  ? print_usage_bug+0xc0/0xc0
[  408.906722] Swap cache stats: add 0, delete 0, find 0/0
[  408.910160]  ? kvm_clock_read+0x18/0x30
[  408.914188] Free swap  = 0kB
[  408.919541]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  408.923485] Total swap = 0kB
[  408.926491]  ? print_usage_bug+0xc0/0xc0
[  408.931599] 1965979 pages RAM
[  408.934607]  ? __lock_acquire+0x62f/0x4c20
[  408.938637] 0 pages HighMem/MovableOnly
[  408.941747]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.945950] 342854 pages reserved
[  408.949908]  ? should_fail+0x22d/0xd01
[  408.955414] 0 pages cma reserved
[  408.958868]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.962796] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  408.966080]  ? __lock_acquire+0x62f/0x4c20
[  408.971235] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  408.977724]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.981931] syz-fuzzer cpuset=/ mems_allowed=0
[  408.992138]  ? __lock_acquire+0x62f/0x4c20
[  408.992151]  ? should_fail+0x22d/0xd01
[  409.009890]  ? mark_held_locks+0x130/0x130
[  409.014127]  ? mark_held_locks+0x130/0x130
[  409.018373]  ? zap_class+0x640/0x640
[  409.022102]  ? print_usage_bug+0xc0/0xc0
[  409.026160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.031694]  ? check_preemption_disabled+0x48/0x280
[  409.036717]  ? __lock_is_held+0xb5/0x140
[  409.040800]  __alloc_pages_nodemask+0xa80/0xde0
[  409.045503]  ? zap_class+0x640/0x640
[  409.049217]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  409.054247]  ? find_held_lock+0x36/0x1c0
[  409.058311]  ? ____cache_alloc_node+0x1c7/0x1e0
[  409.063469]  ? lock_downgrade+0x900/0x900
[  409.067640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.073182]  cache_grow_begin+0xa5/0x8c0
[  409.077242]  ? do_raw_spin_unlock+0xa7/0x330
[  409.081651]  fallback_alloc+0x204/0x2e0
[  409.085623]  ____cache_alloc_node+0x1c7/0x1e0
[  409.090130]  kmem_cache_alloc_node+0xe3/0x730
[  409.094620]  ? ipv6_get_ifaddr+0x42e/0x620
[  409.098857]  __alloc_skb+0x119/0x770
[  409.102565]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.107841]  ? netdev_alloc_frag+0x1f0/0x1f0
[  409.112239]  ? lock_downgrade+0x900/0x900
[  409.116418]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.121945]  ? refcount_sub_and_test_checked+0x203/0x310
[  409.127395]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  409.132842]  ? addrconf_rs_timer+0x690/0x690
[  409.137259]  ndisc_alloc_skb+0x144/0x340
[  409.141317]  ndisc_send_rs+0x331/0x6e0
[  409.145203]  addrconf_rs_timer+0x314/0x690
[  409.149450]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.153691]  call_timer_fn+0x272/0x920
[  409.157574]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.161814]  ? process_timeout+0x40/0x40
[  409.165880]  ? __run_timers+0x7da/0xc70
[  409.169862]  ? _raw_spin_unlock_irq+0x27/0x80
[  409.174359]  ? _raw_spin_unlock_irq+0x27/0x80
[  409.178848]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.183080]  ? lockdep_hardirqs_on+0x296/0x5b0
[  409.187765]  ? trace_hardirqs_on+0xbd/0x310
[  409.192082]  ? kasan_check_read+0x11/0x20
[  409.196224]  ? __run_timers+0x7da/0xc70
[  409.200193]  ? trace_hardirqs_off_caller+0x310/0x310
[  409.205314]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.209549]  __run_timers+0x7e5/0xc70
[  409.213367]  ? timer_fixup_init+0x70/0x70
[  409.217513]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  409.222524]  ? zap_class+0x640/0x640
[  409.226239]  ? enqueue_hrtimer+0x1a5/0x560
[  409.230499]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  409.235690]  ? find_held_lock+0x36/0x1c0
[  409.239751]  ? zap_class+0x640/0x640
[  409.243467]  ? pvclock_read_flags+0x160/0x160
[  409.247958]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.253497]  ? check_preemption_disabled+0x48/0x280
[  409.258523]  ? __lock_is_held+0xb5/0x140
[  409.262580]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.268114]  ? check_preemption_disabled+0x48/0x280
[  409.273129]  run_timer_softirq+0x52/0xb0
[  409.277185]  ? rcu_read_lock_sched_held+0x14f/0x180
[  409.282197]  __do_softirq+0x308/0xb7e
[  409.285995]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  409.290490]  ? lock_downgrade+0x900/0x900
[  409.294639]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  409.299746]  ? pvclock_read_flags+0x160/0x160
[  409.304239]  ? lapic_next_event+0x5a/0x90
[  409.308386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.313932]  ? kvm_clock_read+0x18/0x30
[  409.317903]  ? kvm_sched_clock_read+0x9/0x20
[  409.322308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.327849]  ? check_preemption_disabled+0x48/0x280
[  409.332868]  irq_exit+0x17f/0x1c0
[  409.336323]  smp_apic_timer_interrupt+0x1cb/0x760
[  409.341165]  ? smp_reschedule_interrupt+0x109/0x650
[  409.346181]  ? smp_call_function_single_interrupt+0x650/0x650
[  409.352059]  ? interrupt_entry+0xb5/0xc0
[  409.356115]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.361125]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.366140]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.370977]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.375988]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.380999]  ? task_prio+0x50/0x50
[  409.384535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.390080]  ? check_preemption_disabled+0x48/0x280
[  409.395099]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.399941]  apic_timer_interrupt+0xf/0x20
[  409.404162]  </IRQ>
[  409.406400] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  409.411326] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  409.430334] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  409.438037] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  409.445300] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  409.452572] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  409.459833] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  409.467098] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  409.474399]  skb_clone+0x1bb/0x500
[  409.477939]  ? finish_task_switch+0x2f4/0x910
[  409.482432]  ? skb_split+0x11e0/0x11e0
[  409.486328]  ? preempt_notifier_register+0x200/0x200
[  409.491422]  ? __switch_to_asm+0x34/0x70
[  409.495477]  ? __switch_to_asm+0x34/0x70
[  409.499533]  ? __switch_to_asm+0x40/0x70
[  409.503587]  ? __switch_to_asm+0x34/0x70
[  409.507639]  ? __switch_to_asm+0x40/0x70
[  409.511693]  ? __switch_to_asm+0x34/0x70
[  409.515745]  ? __switch_to_asm+0x40/0x70
[  409.519801]  ? __switch_to_asm+0x34/0x70
[  409.523856]  ? __switch_to_asm+0x34/0x70
[  409.527915]  ? __switch_to_asm+0x40/0x70
[  409.531970]  ? __switch_to_asm+0x34/0x70
[  409.536035]  bpf_clone_redirect+0xb9/0x490
[  409.540269]  ? __schedule+0x8d7/0x21d0
[  409.544161]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  409.549177]  ? __sched_text_start+0x8/0x8
[  409.553325]  ? retint_kernel+0x2d/0x2d
[  409.557219]  ? find_held_lock+0x36/0x1c0
[  409.561287]  ? lock_acquire+0x1ed/0x520
[  409.565262]  ? bpf_test_run+0x3cb/0x780
[  409.569234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.574768]  ? check_preemption_disabled+0x48/0x280
[  409.579789]  ? kasan_check_read+0x11/0x20
[  409.583942]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.589211]  ? rcu_softirq_qs+0x20/0x20
[  409.593181]  ? preempt_schedule+0x4d/0x60
[  409.597335]  ? ___preempt_schedule+0x16/0x18
[  409.601749]  ? bpf_test_run+0x25d/0x780
[  409.605732]  ? netlink_diag_dump+0x2a0/0x2a0
[  409.610137]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.615669]  ? bpf_test_init.isra.10+0x70/0x100
[  409.620344]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  409.625108]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  409.629948]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  409.635478]  ? fput+0x130/0x1a0
[  409.638754]  ? __bpf_prog_get+0x9b/0x290
[  409.642825]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  409.647672]  ? bpf_prog_test_run+0x130/0x1a0
[  409.652081]  ? __x64_sys_bpf+0x3d8/0x520
[  409.656136]  ? bpf_prog_get+0x20/0x20
[  409.659954]  ? do_syscall_64+0x1b9/0x820
[  409.664012]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  409.669372]  ? syscall_return_slowpath+0x5e0/0x5e0
[  409.674296]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.679146]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.684163]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  409.689188]  ? prepare_exit_to_usermode+0x291/0x3b0
[  409.694205]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.699048]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  409.704428] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  409.704492] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  409.711440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  409.711445] Call Trace:
[  409.711451]  <IRQ>
[  409.711467]  dump_stack+0x244/0x39d
[  409.711486]  ? dump_stack_print_info.cold.1+0x20/0x20
[  409.718029] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  409.727393]  warn_alloc.cold.116+0xb7/0x1bd
[  409.729944] syz-executor2 cpuset=syz2 mems_allowed=0
[  409.732082]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  409.765583]  ? lock_downgrade+0x900/0x900
[  409.769736]  ? trace_hardirqs_off+0xb8/0x310
[  409.774149]  ? trace_hardirqs_off+0xb8/0x310
[  409.778564]  __alloc_pages_slowpath+0x26e8/0x2e10
[  409.783427]  ? warn_alloc+0x120/0x120
[  409.787226]  ? print_usage_bug+0xc0/0xc0
[  409.791282]  ? warn_alloc+0x120/0x120
[  409.795088]  ? warn_alloc+0x120/0x120
[  409.798884]  ? print_usage_bug+0xc0/0xc0
[  409.803051]  ? kvm_clock_read+0x18/0x30
[  409.807022]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  409.812034]  ? print_usage_bug+0xc0/0xc0
[  409.816090]  ? __lock_acquire+0x62f/0x4c20
[  409.820335]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.825884]  ? should_fail+0x22d/0xd01
[  409.829764]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.835039]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  409.840136]  ? __lock_acquire+0x62f/0x4c20
[  409.844375]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  409.849480]  ? __lock_acquire+0x62f/0x4c20
[  409.853707]  ? should_fail+0x22d/0xd01
[  409.857586]  ? rcu_irq_exit+0x1a2/0x390
[  409.861565]  ? mark_held_locks+0x130/0x130
[  409.865799]  ? mark_held_locks+0x130/0x130
[  409.870035]  ? mark_held_locks+0xc7/0x130
[  409.874190]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  409.879206]  ? zap_class+0x640/0x640
[  409.882915]  ? print_usage_bug+0xc0/0xc0
[  409.887411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.892944]  ? check_preemption_disabled+0x48/0x280
[  409.897967]  ? __lock_is_held+0xb5/0x140
[  409.902042]  __alloc_pages_nodemask+0xa80/0xde0
[  409.906709]  ? zap_class+0x640/0x640
[  409.910437]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  409.915459]  ? find_held_lock+0x36/0x1c0
[  409.919528]  ? ____cache_alloc_node+0x1c7/0x1e0
[  409.924195]  ? lock_downgrade+0x900/0x900
[  409.928351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.933890]  cache_grow_begin+0xa5/0x8c0
[  409.937944]  ? do_raw_spin_unlock+0xa7/0x330
[  409.942358]  fallback_alloc+0x204/0x2e0
[  409.946333]  ____cache_alloc_node+0x1c7/0x1e0
[  409.950833]  kmem_cache_alloc_node+0xe3/0x730
[  409.955323]  ? ipv6_get_ifaddr+0x42e/0x620
[  409.959568]  __alloc_skb+0x119/0x770
[  409.963273]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.968554]  ? netdev_alloc_frag+0x1f0/0x1f0
[  409.972958]  ? lock_downgrade+0x900/0x900
[  409.977108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.982644]  ? refcount_sub_and_test_checked+0x203/0x310
[  409.988183]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  409.993632]  ? addrconf_rs_timer+0x690/0x690
[  409.998045]  ndisc_alloc_skb+0x144/0x340
[  410.002104]  ndisc_send_rs+0x331/0x6e0
[  410.005994]  addrconf_rs_timer+0x314/0x690
[  410.010233]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.014472]  call_timer_fn+0x272/0x920
[  410.018361]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.022590]  ? process_timeout+0x40/0x40
[  410.026656]  ? mark_held_locks+0xc7/0x130
[  410.030799]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.035292]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.039783]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.044014]  ? lockdep_hardirqs_on+0x296/0x5b0
[  410.048596]  ? trace_hardirqs_on+0xbd/0x310
[  410.052919]  ? kasan_check_read+0x11/0x20
[  410.057061]  ? __run_timers+0x7da/0xc70
[  410.061035]  ? trace_hardirqs_off_caller+0x310/0x310
[  410.066139]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.070374]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.074605]  __run_timers+0x7e5/0xc70
[  410.078419]  ? timer_fixup_init+0x70/0x70
[  410.082564]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  410.087663]  ? zap_class+0x640/0x640
[  410.091377]  ? print_usage_bug+0xc0/0xc0
[  410.095435]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  410.100627]  ? find_held_lock+0x36/0x1c0
[  410.104690]  ? zap_class+0x640/0x640
[  410.108403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.113963]  ? check_preemption_disabled+0x48/0x280
[  410.118987]  ? __lock_is_held+0xb5/0x140
[  410.123043]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.128592]  ? check_preemption_disabled+0x48/0x280
[  410.133697]  run_timer_softirq+0x52/0xb0
[  410.137756]  ? rcu_read_lock_sched_held+0x14f/0x180
[  410.142773]  __do_softirq+0x308/0xb7e
[  410.146573]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  410.151065]  ? lock_downgrade+0x900/0x900
[  410.155213]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  410.160318]  ? pvclock_read_flags+0x160/0x160
[  410.164815]  ? lapic_next_event+0x5a/0x90
[  410.168961]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.174499]  ? kvm_clock_read+0x18/0x30
[  410.178470]  ? kvm_sched_clock_read+0x9/0x20
[  410.182878]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.188410]  ? check_preemption_disabled+0x48/0x280
[  410.193429]  irq_exit+0x17f/0x1c0
[  410.196909]  smp_apic_timer_interrupt+0x1cb/0x760
[  410.201862]  ? smp_call_function_single_interrupt+0x650/0x650
[  410.207738]  ? interrupt_entry+0xb5/0xc0
[  410.211800]  ? trace_hardirqs_off_caller+0xbb/0x310
[  410.216809]  ? trace_hardirqs_off_caller+0xbb/0x310
[  410.221819]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.226661]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.231670]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.236681]  ? task_prio+0x50/0x50
[  410.240230]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.245770]  ? check_preemption_disabled+0x48/0x280
[  410.250793]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.255636]  apic_timer_interrupt+0xf/0x20
[  410.259858]  </IRQ>
[  410.262092] RIP: 0010:dump_stack+0x358/0x39d
[  410.266495] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  410.285399] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  410.293110] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  410.300372] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  410.307632] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  410.314893] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  410.322158] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  410.329440]  ? dump_stack+0x34f/0x39d
[  410.333248]  ? dump_stack_print_info.cold.1+0x20/0x20
[  410.338451]  ? mark_held_locks+0x130/0x130
[  410.342680]  ? mark_held_locks+0x130/0x130
[  410.346917]  dump_header+0x27b/0xf72
[  410.350638]  ? pagefault_out_of_memory+0x197/0x197
[  410.355569]  ? __lock_acquire+0x62f/0x4c20
[  410.359799]  ? percpu_ref_get_many+0x240/0x240
[  410.364390]  ? print_usage_bug+0xc0/0xc0
[  410.368487]  ? zap_class+0x640/0x640
[  410.372309]  ? print_usage_bug+0xc0/0xc0
[  410.376367]  ? print_usage_bug+0xc0/0xc0
[  410.380435]  ? zap_class+0x640/0x640
[  410.384147]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.389684]  ? find_held_lock+0x36/0x1c0
[  410.393863]  ? mark_held_locks+0xc7/0x130
[  410.398009]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  410.403103]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  410.408203]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  410.412784]  ? trace_hardirqs_on+0xbd/0x310
[  410.417114]  ? kasan_check_read+0x11/0x20
[  410.421268]  ? ___ratelimit+0x3b4/0x672
[  410.425264]  ? trace_hardirqs_off_caller+0x310/0x310
[  410.430365]  ? trace_hardirqs_on+0x310/0x310
[  410.434776]  ? lock_downgrade+0x900/0x900
[  410.438922]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  410.444016]  ? ___ratelimit+0x3b9/0x672
[  410.448090]  ? idr_get_free+0xf70/0xf70
[  410.452058]  ? find_held_lock+0x36/0x1c0
[  410.456122]  oom_kill_process.cold.27+0x10/0x903
[  410.460875]  ? zap_class+0x640/0x640
[  410.464583]  ? check_preemption_disabled+0x48/0x280
[  410.469675]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  410.474597]  ? kasan_check_read+0x11/0x20
[  410.478748]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.484045]  ? oom_evaluate_task+0x540/0x540
[  410.488452]  ? find_held_lock+0x36/0x1c0
[  410.492513]  ? out_of_memory+0x974/0x1430
[  410.496657]  ? lock_downgrade+0x900/0x900
[  410.500800]  ? check_preemption_disabled+0x48/0x280
[  410.505818]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  410.510741]  ? kasan_check_read+0x11/0x20
[  410.514883]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.520155]  ? rcu_softirq_qs+0x20/0x20
[  410.524126]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.529657]  ? oom_evaluate_task+0x302/0x540
[  410.534067]  out_of_memory+0xa84/0x1430
[  410.538043]  ? oom_killer_disable+0x3a0/0x3a0
[  410.542533]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  410.547548]  ? __ww_mutex_check_waiters+0x160/0x160
[  410.552570]  __alloc_pages_slowpath+0x2354/0x2e10
[  410.557434]  ? warn_alloc+0x120/0x120
[  410.561231]  ? mark_held_locks+0x130/0x130
[  410.565472]  ? find_get_entry+0xaae/0x1120
[  410.569715]  ? filemap_map_pages+0x1a20/0x1a20
[  410.574307]  ? zap_class+0x640/0x640
[  410.578020]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.583552]  ? check_preemption_disabled+0x48/0x280
[  410.588566]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.594099]  ? should_fail+0x22d/0xd01
[  410.597984]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.603082]  ? zap_class+0x640/0x640
[  410.606817]  ? __lock_is_held+0xb5/0x140
[  410.610884]  ? mark_held_locks+0x130/0x130
[  410.615118]  ? lock_release+0xa00/0xa00
[  410.619090]  ? perf_trace_sched_process_exec+0x860/0x860
[  410.624543]  ? xa_load+0x2ba/0x460
[  410.628095]  ? lock_downgrade+0x900/0x900
[  410.632249]  ? __might_sleep+0x95/0x190
[  410.636226]  __alloc_pages_nodemask+0xa80/0xde0
[  410.640904]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  410.645915]  ? __page_cache_alloc+0x191/0x5c0
[  410.650408]  ? xa_load+0x2e1/0x460
[  410.653948]  ? xa_clear_mark+0x40/0x40
[  410.657833]  ? zap_class+0x640/0x640
[  410.661553]  ? zap_class+0x640/0x640
[  410.665260]  ? zap_class+0x640/0x640
[  410.668974]  ? __do_page_cache_readahead+0x663/0x810
[  410.674076]  ? find_held_lock+0x36/0x1c0
[  410.678136]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  410.683676]  alloc_pages_current+0x173/0x350
[  410.688086]  __page_cache_alloc+0x38c/0x5c0
[  410.692404]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  410.697332]  ? kasan_check_read+0x11/0x20
[  410.701473]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.706747]  ? generic_perform_write+0x6a0/0x6a0
[  410.711504]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.717038]  ? check_preemption_disabled+0x48/0x280
[  410.722060]  filemap_fault+0x1595/0x25f0
[  410.726129]  ? __lock_page_or_retry+0xa00/0xa00
[  410.730798]  ? mark_held_locks+0x130/0x130
[  410.735037]  ? filemap_map_pages+0xd6b/0x1a20
[  410.739530]  ? lock_downgrade+0x900/0x900
[  410.743674]  ? check_preemption_disabled+0x48/0x280
[  410.748691]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  410.753612]  ? kasan_check_read+0x11/0x20
[  410.757780]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.763050]  ? rcu_softirq_qs+0x20/0x20
[  410.767030]  ? filemap_map_pages+0xd92/0x1a20
[  410.771531]  ? find_get_entries_tag+0x1400/0x1400
[  410.776370]  ? find_held_lock+0x36/0x1c0
[  410.780450]  ? lock_acquire+0x1ed/0x520
[  410.784421]  ? ext4_filemap_fault+0x7a/0xad
[  410.788744]  ? lock_release+0xa00/0xa00
[  410.792712]  ? perf_trace_sched_process_exec+0x860/0x860
[  410.798159]  ? print_usage_bug+0xc0/0xc0
[  410.802245]  ? down_read+0x8d/0x120
[  410.805868]  ? ext4_filemap_fault+0x7a/0xad
[  410.810185]  ? __down_interruptible+0x700/0x700
[  410.814855]  ? find_held_lock+0x36/0x1c0
[  410.818936]  ext4_filemap_fault+0x82/0xad
[  410.823080]  __do_fault+0x100/0x6b0
[  410.826726]  ? lock_downgrade+0x900/0x900
[  410.830868]  ? pmd_devmap_trans_unstable+0x220/0x220
[  410.835971]  ? kasan_check_read+0x11/0x20
[  410.840133]  ? do_raw_spin_unlock+0xa7/0x330
[  410.844538]  ? do_raw_spin_trylock+0x270/0x270
[  410.849129]  __handle_mm_fault+0x3ea0/0x5be0
[  410.853531]  ? perf_trace_lock+0x7a0/0x7a0
[  410.857770]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  410.862613]  ? __switch_to_asm+0x34/0x70
[  410.866670]  ? __switch_to_asm+0x34/0x70
[  410.870749]  ? zap_class+0x640/0x640
[  410.874467]  ? zap_class+0x640/0x640
[  410.878179]  ? __x64_sys_futex+0x53e/0x6a0
[  410.882421]  ? find_held_lock+0x36/0x1c0
[  410.886484]  ? handle_mm_fault+0x42a/0xc70
[  410.890715]  ? lock_downgrade+0x900/0x900
[  410.895331]  ? check_preemption_disabled+0x48/0x280
[  410.900354]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  410.905283]  ? kasan_check_read+0x11/0x20
[  410.909424]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.914707]  ? rcu_softirq_qs+0x20/0x20
[  410.918687]  ? trace_hardirqs_off_caller+0x310/0x310
[  410.923789]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.929324]  ? check_preemption_disabled+0x48/0x280
[  410.934343]  handle_mm_fault+0x54f/0xc70
[  410.938434]  ? __handle_mm_fault+0x5be0/0x5be0
[  410.943016]  ? find_vma+0x34/0x190
[  410.946556]  __do_page_fault+0x5e8/0xe60
[  410.950610]  ? trace_hardirqs_off+0xb8/0x310
[  410.955025]  do_page_fault+0xf2/0x7e0
[  410.958835]  ? vmalloc_sync_all+0x30/0x30
[  410.962979]  ? error_entry+0x70/0xd0
[  410.966692]  ? trace_hardirqs_off_caller+0xbb/0x310
[  410.971704]  ? trace_hardirqs_on_caller+0xc0/0x310
[  410.976650]  ? syscall_return_slowpath+0x5e0/0x5e0
[  410.981584]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.986423]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.991454]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  410.996901]  ? prepare_exit_to_usermode+0x291/0x3b0
[  411.001907]  ? page_fault+0x8/0x30
[  411.005444]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.010293]  ? page_fault+0x8/0x30
[  411.013826]  page_fault+0x1e/0x30
[  411.017275] RIP: 0033:0x404068
[  411.020486] Code: Bad RIP value.
[  411.023839] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  411.029214] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  411.036475] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  411.043827] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  411.051094] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  411.058355] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  411.066117] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  411.066122] warn_alloc_show_mem: 1 callbacks suppressed
[  411.066128] Mem-Info:
[  411.073491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  411.078938] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  411.078938]  active_file:13 inactive_file:13 isolated_file:0
[  411.078938]  unevictable:0 dirty:0 writeback:0 unstable:0
[  411.078938]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  411.078938]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  411.078938]  free:13747 free_pcp:348 free_cma:0
[  411.081317] Call Trace:
[  411.090689] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  411.123698]  <IRQ>
[  411.126263] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  411.154111]  dump_stack+0x244/0x39d
[  411.156228] lowmem_reserve[]: 0 2818 6321 6321
[  411.182326]  ? dump_stack_print_info.cold.1+0x20/0x20
[  411.185921] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  411.190501]  warn_alloc.cold.116+0xb7/0x1bd
[  411.195651] lowmem_reserve[]: 0 0 3503 3503
[  411.223313]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  411.227603] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  411.231920]  ? lock_downgrade+0x900/0x900
[  411.236728] lowmem_reserve[]: 0 0 0 0
[  411.265962]  ? trace_hardirqs_off+0xb8/0x310
[  411.270075] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  411.273881]  ? trace_hardirqs_off+0xb8/0x310
[  411.278259] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  411.291790]  __alloc_pages_slowpath+0x26e8/0x2e10
[  411.296163] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  411.311096]  ? warn_alloc+0x120/0x120
[  411.315895] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  411.331051]  ? print_usage_bug+0xc0/0xc0
[  411.334827] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  411.343648]  ? warn_alloc+0x120/0x120
[  411.347691] 4484 total pagecache pages
[  411.356252]  ? warn_alloc+0x120/0x120
[  411.360030] 0 pages in swap cache
[  411.363897]  ? print_usage_bug+0xc0/0xc0
[  411.367670] Swap cache stats: add 0, delete 0, find 0/0
[  411.371105]  ? kvm_clock_read+0x18/0x30
[  411.375145] Free swap  = 0kB
[  411.380499]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  411.384441] Total swap = 0kB
[  411.387448]  ? print_usage_bug+0xc0/0xc0
[  411.392435] 1965979 pages RAM
[  411.395442]  ? __lock_acquire+0x62f/0x4c20
[  411.399467] 0 pages HighMem/MovableOnly
[  411.399474] 342854 pages reserved
[  411.402568]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.406772] 0 pages cma reserved
[  411.410735]  ? should_fail+0x22d/0xd01
[  411.414225] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  411.419697]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.419714]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.419733]  ? __lock_acquire+0x62f/0x4c20
[  411.423140] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  411.426942]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.433403] syz-fuzzer cpuset=/ mems_allowed=0
[  411.438674]  ? __lock_acquire+0x62f/0x4c20
[  411.438688]  ? should_fail+0x22d/0xd01
[  411.475929]  ? rcu_irq_exit+0x1a2/0x390
[  411.479992]  ? mark_held_locks+0x130/0x130
[  411.484227]  ? mark_held_locks+0x130/0x130
[  411.488459]  ? mark_held_locks+0xc7/0x130
[  411.492601]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  411.497610]  ? zap_class+0x640/0x640
[  411.501318]  ? print_usage_bug+0xc0/0xc0
[  411.505374]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.510921]  ? check_preemption_disabled+0x48/0x280
[  411.515943]  ? __lock_is_held+0xb5/0x140
[  411.520113]  __alloc_pages_nodemask+0xa80/0xde0
[  411.524775]  ? zap_class+0x640/0x640
[  411.528491]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  411.533517]  ? find_held_lock+0x36/0x1c0
[  411.537584]  ? ____cache_alloc_node+0x1c7/0x1e0
[  411.542250]  ? lock_downgrade+0x900/0x900
[  411.546403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.551977]  cache_grow_begin+0xa5/0x8c0
[  411.556033]  ? do_raw_spin_unlock+0xa7/0x330
[  411.560458]  fallback_alloc+0x204/0x2e0
[  411.564429]  ____cache_alloc_node+0x1c7/0x1e0
[  411.568925]  kmem_cache_alloc_node+0xe3/0x730
[  411.573421]  ? ipv6_get_ifaddr+0x42e/0x620
[  411.577676]  __alloc_skb+0x119/0x770
[  411.581395]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.586669]  ? netdev_alloc_frag+0x1f0/0x1f0
[  411.591072]  ? lock_downgrade+0x900/0x900
[  411.595223]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.600757]  ? refcount_sub_and_test_checked+0x203/0x310
[  411.606208]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  411.611656]  ? addrconf_rs_timer+0x690/0x690
[  411.616073]  ndisc_alloc_skb+0x144/0x340
[  411.620135]  ndisc_send_rs+0x331/0x6e0
[  411.624035]  addrconf_rs_timer+0x314/0x690
[  411.628274]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.632513]  call_timer_fn+0x272/0x920
[  411.636395]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.640630]  ? process_timeout+0x40/0x40
[  411.644697]  ? __run_timers+0x7da/0xc70
[  411.648675]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.653175]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.657664]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.661894]  ? lockdep_hardirqs_on+0x296/0x5b0
[  411.666474]  ? trace_hardirqs_on+0xbd/0x310
[  411.670789]  ? kasan_check_read+0x11/0x20
[  411.674934]  ? __run_timers+0x7da/0xc70
[  411.678904]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.684007]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.688243]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.692474]  __run_timers+0x7e5/0xc70
[  411.696279]  ? timer_fixup_init+0x70/0x70
[  411.700422]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  411.705437]  ? zap_class+0x640/0x640
[  411.709156]  ? enqueue_hrtimer+0x1a5/0x560
[  411.713390]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  411.718585]  ? find_held_lock+0x36/0x1c0
[  411.722649]  ? zap_class+0x640/0x640
[  411.726365]  ? pvclock_read_flags+0x160/0x160
[  411.730857]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.736390]  ? check_preemption_disabled+0x48/0x280
[  411.741411]  ? __lock_is_held+0xb5/0x140
[  411.745472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.751005]  ? check_preemption_disabled+0x48/0x280
[  411.756022]  run_timer_softirq+0x52/0xb0
[  411.760079]  ? rcu_read_lock_sched_held+0x14f/0x180
[  411.765178]  __do_softirq+0x308/0xb7e
[  411.768975]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  411.773466]  ? lock_downgrade+0x900/0x900
[  411.777619]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  411.782724]  ? pvclock_read_flags+0x160/0x160
[  411.787217]  ? lapic_next_event+0x5a/0x90
[  411.791361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.796901]  ? kvm_clock_read+0x18/0x30
[  411.800865]  ? kvm_sched_clock_read+0x9/0x20
[  411.805267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.810802]  ? check_preemption_disabled+0x48/0x280
[  411.815822]  irq_exit+0x17f/0x1c0
[  411.819272]  smp_apic_timer_interrupt+0x1cb/0x760
[  411.824113]  ? smp_reschedule_interrupt+0x109/0x650
[  411.829218]  ? smp_call_function_single_interrupt+0x650/0x650
[  411.835099]  ? interrupt_entry+0xb5/0xc0
[  411.839162]  ? trace_hardirqs_off_caller+0xbb/0x310
[  411.844179]  ? trace_hardirqs_off_caller+0xbb/0x310
[  411.849192]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.854033]  ? trace_hardirqs_on_caller+0x310/0x310
[  411.859042]  ? trace_hardirqs_on_caller+0x310/0x310
[  411.864161]  ? task_prio+0x50/0x50
[  411.867704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.873238]  ? check_preemption_disabled+0x48/0x280
[  411.878253]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.883099]  apic_timer_interrupt+0xf/0x20
[  411.887328]  </IRQ>
[  411.889561] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  411.894487] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  411.913394] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  411.921096] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  411.928379] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  411.935642] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  411.942905] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  411.950165] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  411.957479]  skb_clone+0x1bb/0x500
[  411.961017]  ? finish_task_switch+0x2f4/0x910
[  411.965509]  ? skb_split+0x11e0/0x11e0
[  411.969395]  ? preempt_notifier_register+0x200/0x200
[  411.974491]  ? __switch_to_asm+0x34/0x70
[  411.978548]  ? __switch_to_asm+0x34/0x70
[  411.982603]  ? __switch_to_asm+0x40/0x70
[  411.986661]  ? __switch_to_asm+0x34/0x70
[  411.990721]  ? __switch_to_asm+0x40/0x70
[  411.994775]  ? __switch_to_asm+0x34/0x70
[  411.998833]  ? __switch_to_asm+0x40/0x70
[  412.002889]  ? __switch_to_asm+0x34/0x70
[  412.006944]  ? __switch_to_asm+0x34/0x70
[  412.011001]  ? __switch_to_asm+0x40/0x70
[  412.015052]  ? __switch_to_asm+0x34/0x70
[  412.019114]  bpf_clone_redirect+0xb9/0x490
[  412.023356]  ? __schedule+0x8d7/0x21d0
[  412.027246]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  412.032273]  ? __sched_text_start+0x8/0x8
[  412.036421]  ? retint_kernel+0x2d/0x2d
[  412.040313]  ? find_held_lock+0x36/0x1c0
[  412.044379]  ? lock_acquire+0x1ed/0x520
[  412.048349]  ? bpf_test_run+0x3cb/0x780
[  412.052321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.057852]  ? check_preemption_disabled+0x48/0x280
[  412.062889]  ? kasan_check_read+0x11/0x20
[  412.067032]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.072326]  ? rcu_softirq_qs+0x20/0x20
[  412.076299]  ? preempt_schedule+0x4d/0x60
[  412.080449]  ? ___preempt_schedule+0x16/0x18
[  412.084858]  ? bpf_test_run+0x25d/0x780
[  412.088837]  ? netlink_diag_dump+0x2a0/0x2a0
[  412.093254]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.098789]  ? bpf_test_init.isra.10+0x70/0x100
[  412.103458]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  412.108214]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  412.113049]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  412.118585]  ? fput+0x130/0x1a0
[  412.121871]  ? __bpf_prog_get+0x9b/0x290
[  412.125927]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  412.130767]  ? bpf_prog_test_run+0x130/0x1a0
[  412.135177]  ? __x64_sys_bpf+0x3d8/0x520
[  412.139328]  ? bpf_prog_get+0x20/0x20
[  412.143146]  ? do_syscall_64+0x1b9/0x820
[  412.147207]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  412.152572]  ? syscall_return_slowpath+0x5e0/0x5e0
[  412.157497]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.162335]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.167348]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  412.172360]  ? prepare_exit_to_usermode+0x291/0x3b0
[  412.177378]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.182223]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  412.187596] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  412.187677] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  412.194603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  412.194610] Call Trace:
[  412.201172] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  412.210428]  <IRQ>
[  412.213002] syz-executor2 cpuset=syz2 mems_allowed=0
[  412.223560]  dump_stack+0x244/0x39d
[  412.234389]  ? dump_stack_print_info.cold.1+0x20/0x20
[  412.239591]  warn_alloc.cold.116+0xb7/0x1bd
[  412.243907]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  412.248754]  ? lock_downgrade+0x900/0x900
[  412.253004]  ? trace_hardirqs_off+0xb8/0x310
[  412.257414]  ? trace_hardirqs_off+0xb8/0x310
[  412.261829]  __alloc_pages_slowpath+0x26e8/0x2e10
[  412.266691]  ? warn_alloc+0x120/0x120
[  412.270489]  ? print_usage_bug+0xc0/0xc0
[  412.274549]  ? warn_alloc+0x120/0x120
[  412.278351]  ? warn_alloc+0x120/0x120
[  412.282148]  ? print_usage_bug+0xc0/0xc0
[  412.286215]  ? print_usage_bug+0xc0/0xc0
[  412.290275]  ? __lock_acquire+0x62f/0x4c20
[  412.294528]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.300145]  ? should_fail+0x22d/0xd01
[  412.304039]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.309138]  ? __lock_acquire+0x62f/0x4c20
[  412.313378]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.318473]  ? __lock_acquire+0x62f/0x4c20
[  412.322717]  ? should_fail+0x22d/0xd01
[  412.326615]  ? find_held_lock+0x36/0x1c0
[  412.330680]  ? mark_held_locks+0x130/0x130
[  412.334920]  ? mark_held_locks+0x130/0x130
[  412.339157]  ? zap_class+0x640/0x640
[  412.342876]  ? zap_class+0x640/0x640
[  412.346607]  ? print_usage_bug+0xc0/0xc0
[  412.350665]  ? do_raw_spin_unlock+0xa7/0x330
[  412.355071]  ? zap_class+0x640/0x640
[  412.358784]  ? print_usage_bug+0xc0/0xc0
[  412.362837]  ? wq_watchdog_touch+0x9c/0xfe
[  412.367067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.372603]  ? check_preemption_disabled+0x48/0x280
[  412.377622]  ? __lock_is_held+0xb5/0x140
[  412.381697]  __alloc_pages_nodemask+0xa80/0xde0
[  412.386373]  ? zap_class+0x640/0x640
[  412.390086]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  412.395127]  ? find_held_lock+0x36/0x1c0
[  412.399202]  ? ____cache_alloc_node+0x1c7/0x1e0
[  412.403865]  ? lock_downgrade+0x900/0x900
[  412.408015]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.413553]  cache_grow_begin+0xa5/0x8c0
[  412.417621]  ? do_raw_spin_unlock+0xa7/0x330
[  412.422034]  fallback_alloc+0x204/0x2e0
[  412.426011]  ____cache_alloc_node+0x1c7/0x1e0
[  412.430504]  kmem_cache_alloc_node+0xe3/0x730
[  412.434993]  ? ipv6_get_ifaddr+0x42e/0x620
[  412.439247]  __alloc_skb+0x119/0x770
[  412.442964]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.448261]  ? netdev_alloc_frag+0x1f0/0x1f0
[  412.452673]  ? lock_downgrade+0x900/0x900
[  412.456847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.462380]  ? refcount_sub_and_test_checked+0x203/0x310
[  412.467840]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  412.473284]  ? addrconf_rs_timer+0x690/0x690
[  412.477699]  ndisc_alloc_skb+0x144/0x340
[  412.481773]  ndisc_send_rs+0x331/0x6e0
[  412.485660]  addrconf_rs_timer+0x314/0x690
[  412.489895]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.494137]  call_timer_fn+0x272/0x920
[  412.498020]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.502249]  ? process_timeout+0x40/0x40
[  412.506356]  ? mark_held_locks+0xc7/0x130
[  412.510497]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.514981]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.519467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.523699]  ? lockdep_hardirqs_on+0x296/0x5b0
[  412.528281]  ? trace_hardirqs_on+0xbd/0x310
[  412.532597]  ? kasan_check_read+0x11/0x20
[  412.536750]  ? __run_timers+0x7da/0xc70
[  412.540723]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.545821]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.550056]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.554288]  __run_timers+0x7e5/0xc70
[  412.558098]  ? timer_fixup_init+0x70/0x70
[  412.562246]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  412.567256]  ? zap_class+0x640/0x640
[  412.570992]  ? print_usage_bug+0xc0/0xc0
[  412.575053]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  412.580270]  ? find_held_lock+0x36/0x1c0
[  412.584335]  ? zap_class+0x640/0x640
[  412.588047]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.593596]  ? check_preemption_disabled+0x48/0x280
[  412.598628]  ? __lock_is_held+0xb5/0x140
[  412.602684]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.608216]  ? check_preemption_disabled+0x48/0x280
[  412.613234]  run_timer_softirq+0x52/0xb0
[  412.617287]  ? rcu_read_lock_sched_held+0x14f/0x180
[  412.622305]  __do_softirq+0x308/0xb7e
[  412.626110]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  412.630602]  ? lock_downgrade+0x900/0x900
[  412.634762]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  412.639881]  ? pvclock_read_flags+0x160/0x160
[  412.644372]  ? lapic_next_event+0x5a/0x90
[  412.648521]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.654058]  ? kvm_clock_read+0x18/0x30
[  412.658032]  ? kvm_sched_clock_read+0x9/0x20
[  412.662439]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.667970]  ? check_preemption_disabled+0x48/0x280
[  412.672990]  irq_exit+0x17f/0x1c0
[  412.676444]  smp_apic_timer_interrupt+0x1cb/0x760
[  412.681283]  ? smp_call_function_single_interrupt+0x650/0x650
[  412.687180]  ? interrupt_entry+0xb5/0xc0
[  412.691325]  ? trace_hardirqs_off_caller+0xbb/0x310
[  412.696332]  ? trace_hardirqs_off_caller+0xbb/0x310
[  412.701342]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.706191]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.711205]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.716220]  ? task_prio+0x50/0x50
[  412.719870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.725408]  ? check_preemption_disabled+0x48/0x280
[  412.730426]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.735291]  apic_timer_interrupt+0xf/0x20
[  412.739515]  </IRQ>
[  412.741860] RIP: 0010:dump_stack+0x358/0x39d
[  412.746276] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  412.765173] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  412.772888] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  412.780150] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  412.787498] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  412.794763] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  412.802023] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  412.809321]  ? dump_stack+0x34f/0x39d
[  412.813136]  ? dump_stack_print_info.cold.1+0x20/0x20
[  412.818339]  ? mark_held_locks+0x130/0x130
[  412.822567]  ? mark_held_locks+0x130/0x130
[  412.826799]  dump_header+0x27b/0xf72
[  412.830529]  ? pagefault_out_of_memory+0x197/0x197
[  412.835458]  ? __lock_acquire+0x62f/0x4c20
[  412.839694]  ? percpu_ref_get_many+0x240/0x240
[  412.844292]  ? print_usage_bug+0xc0/0xc0
[  412.848356]  ? zap_class+0x640/0x640
[  412.852072]  ? print_usage_bug+0xc0/0xc0
[  412.856130]  ? print_usage_bug+0xc0/0xc0
[  412.860192]  ? zap_class+0x640/0x640
[  412.863990]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.869522]  ? find_held_lock+0x36/0x1c0
[  412.873596]  ? mark_held_locks+0xc7/0x130
[  412.877748]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  412.882844]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  412.887943]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  412.892997]  ? trace_hardirqs_on+0xbd/0x310
[  412.897316]  ? kasan_check_read+0x11/0x20
[  412.901463]  ? ___ratelimit+0x3b4/0x672
[  412.905438]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.910534]  ? trace_hardirqs_on+0x310/0x310
[  412.914944]  ? lock_downgrade+0x900/0x900
[  412.919092]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  412.924193]  ? ___ratelimit+0x3b9/0x672
[  412.928160]  ? idr_get_free+0xf70/0xf70
[  412.932126]  ? find_held_lock+0x36/0x1c0
[  412.936192]  oom_kill_process.cold.27+0x10/0x903
[  412.940940]  ? zap_class+0x640/0x640
[  412.944763]  ? check_preemption_disabled+0x48/0x280
[  412.949776]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  412.954701]  ? kasan_check_read+0x11/0x20
[  412.958846]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.964125]  ? oom_evaluate_task+0x540/0x540
[  412.968535]  ? find_held_lock+0x36/0x1c0
[  412.972600]  ? out_of_memory+0x974/0x1430
[  412.976759]  ? lock_downgrade+0x900/0x900
[  412.980900]  ? check_preemption_disabled+0x48/0x280
[  412.985918]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  412.990843]  ? kasan_check_read+0x11/0x20
[  412.994991]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.000266]  ? rcu_softirq_qs+0x20/0x20
[  413.004242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.009772]  ? oom_evaluate_task+0x302/0x540
[  413.014181]  out_of_memory+0xa84/0x1430
[  413.018161]  ? oom_killer_disable+0x3a0/0x3a0
[  413.024477]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  413.029406]  ? __ww_mutex_check_waiters+0x160/0x160
[  413.034432]  __alloc_pages_slowpath+0x2354/0x2e10
[  413.039303]  ? warn_alloc+0x120/0x120
[  413.043105]  ? mark_held_locks+0x130/0x130
[  413.047339]  ? find_get_entry+0xaae/0x1120
[  413.051578]  ? filemap_map_pages+0x1a20/0x1a20
[  413.056173]  ? zap_class+0x640/0x640
[  413.060130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.065666]  ? check_preemption_disabled+0x48/0x280
[  413.070678]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.076208]  ? should_fail+0x22d/0xd01
[  413.080104]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.085291]  ? zap_class+0x640/0x640
[  413.089021]  ? __lock_is_held+0xb5/0x140
[  413.093095]  ? mark_held_locks+0x130/0x130
[  413.097330]  ? lock_release+0xa00/0xa00
[  413.101303]  ? perf_trace_sched_process_exec+0x860/0x860
[  413.106750]  ? xa_load+0x2ba/0x460
[  413.110290]  ? lock_downgrade+0x900/0x900
[  413.114439]  ? __might_sleep+0x95/0x190
[  413.118416]  __alloc_pages_nodemask+0xa80/0xde0
[  413.123095]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  413.128111]  ? __page_cache_alloc+0x191/0x5c0
[  413.132616]  ? xa_load+0x2e1/0x460
[  413.136151]  ? xa_clear_mark+0x40/0x40
[  413.140047]  ? zap_class+0x640/0x640
[  413.143783]  ? zap_class+0x640/0x640
[  413.147491]  ? zap_class+0x640/0x640
[  413.151203]  ? __do_page_cache_readahead+0x663/0x810
[  413.156305]  ? find_held_lock+0x36/0x1c0
[  413.160367]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  413.165905]  alloc_pages_current+0x173/0x350
[  413.170319]  __page_cache_alloc+0x38c/0x5c0
[  413.174636]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.179563]  ? kasan_check_read+0x11/0x20
[  413.183710]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.188995]  ? generic_perform_write+0x6a0/0x6a0
[  413.193779]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.199313]  ? check_preemption_disabled+0x48/0x280
[  413.204339]  filemap_fault+0x1595/0x25f0
[  413.208407]  ? __lock_page_or_retry+0xa00/0xa00
[  413.213077]  ? mark_held_locks+0x130/0x130
[  413.217316]  ? filemap_map_pages+0xd6b/0x1a20
[  413.221808]  ? lock_downgrade+0x900/0x900
[  413.225954]  ? check_preemption_disabled+0x48/0x280
[  413.230968]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.235891]  ? kasan_check_read+0x11/0x20
[  413.240041]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.245315]  ? rcu_softirq_qs+0x20/0x20
[  413.249296]  ? filemap_map_pages+0xd92/0x1a20
[  413.253802]  ? find_get_entries_tag+0x1400/0x1400
[  413.258637]  ? find_held_lock+0x36/0x1c0
[  413.262715]  ? lock_acquire+0x1ed/0x520
[  413.266686]  ? ext4_filemap_fault+0x7a/0xad
[  413.271007]  ? lock_release+0xa00/0xa00
[  413.274983]  ? perf_trace_sched_process_exec+0x860/0x860
[  413.280432]  ? print_usage_bug+0xc0/0xc0
[  413.284500]  ? down_read+0x8d/0x120
[  413.288125]  ? ext4_filemap_fault+0x7a/0xad
[  413.292443]  ? __down_interruptible+0x700/0x700
[  413.297110]  ? find_held_lock+0x36/0x1c0
[  413.301172]  ext4_filemap_fault+0x82/0xad
[  413.305319]  __do_fault+0x100/0x6b0
[  413.308943]  ? lock_downgrade+0x900/0x900
[  413.313090]  ? pmd_devmap_trans_unstable+0x220/0x220
[  413.318193]  ? kasan_check_read+0x11/0x20
[  413.322340]  ? do_raw_spin_unlock+0xa7/0x330
[  413.326742]  ? do_raw_spin_trylock+0x270/0x270
[  413.331333]  __handle_mm_fault+0x3ea0/0x5be0
[  413.335734]  ? perf_trace_lock+0x7a0/0x7a0
[  413.339976]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  413.344819]  ? __switch_to_asm+0x34/0x70
[  413.348877]  ? __switch_to_asm+0x34/0x70
[  413.352950]  ? zap_class+0x640/0x640
[  413.356662]  ? zap_class+0x640/0x640
[  413.360383]  ? __x64_sys_futex+0x53e/0x6a0
[  413.364617]  ? find_held_lock+0x36/0x1c0
[  413.368684]  ? handle_mm_fault+0x42a/0xc70
[  413.372914]  ? lock_downgrade+0x900/0x900
[  413.377065]  ? check_preemption_disabled+0x48/0x280
[  413.382084]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.387014]  ? kasan_check_read+0x11/0x20
[  413.391173]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.396443]  ? rcu_softirq_qs+0x20/0x20
[  413.400414]  ? trace_hardirqs_off_caller+0x310/0x310
[  413.405516]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.411138]  ? check_preemption_disabled+0x48/0x280
[  413.416155]  handle_mm_fault+0x54f/0xc70
[  413.420218]  ? __handle_mm_fault+0x5be0/0x5be0
[  413.424814]  ? find_vma+0x34/0x190
[  413.428353]  __do_page_fault+0x5e8/0xe60
[  413.432407]  ? trace_hardirqs_off+0xb8/0x310
[  413.436817]  do_page_fault+0xf2/0x7e0
[  413.440618]  ? vmalloc_sync_all+0x30/0x30
[  413.444763]  ? error_entry+0x70/0xd0
[  413.448472]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.453485]  ? trace_hardirqs_on_caller+0xc0/0x310
[  413.458431]  ? syscall_return_slowpath+0x5e0/0x5e0
[  413.463354]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.468192]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.473203]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  413.478654]  ? prepare_exit_to_usermode+0x291/0x3b0
[  413.483667]  ? page_fault+0x8/0x30
[  413.487207]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.492056]  ? page_fault+0x8/0x30
[  413.495613]  page_fault+0x1e/0x30
[  413.499083] RIP: 0033:0x404068
[  413.502280] Code: Bad RIP value.
[  413.505642] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  413.511006] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  413.518383] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  413.525737] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  413.533004] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  413.540265] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  413.547554] warn_alloc_show_mem: 1 callbacks suppressed
[  413.547564] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  413.547566] Mem-Info:
[  413.547599] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  413.547599]  active_file:13 inactive_file:13 isolated_file:0
[  413.547599]  unevictable:0 dirty:0 writeback:0 unstable:0
[  413.547599]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  413.547599]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  413.547599]  free:13747 free_pcp:348 free_cma:0
[  413.552932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  413.560293] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  413.562680] Call Trace:
[  413.595709] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  413.605052]  <IRQ>
[  413.632869] lowmem_reserve[]: 0 2818 6321 6321
[  413.635476]  dump_stack+0x244/0x39d
[  413.661555] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  413.663701]  ? dump_stack_print_info.cold.1+0x20/0x20
[  413.668247] lowmem_reserve[]: 0 0 3503 3503
[  413.671877]  warn_alloc.cold.116+0xb7/0x1bd
[  413.699337] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  413.704528]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  413.708820] lowmem_reserve[]: 0 0 0 0
[  413.713137]  ? lock_downgrade+0x900/0x900
[  413.742249] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  413.747086]  ? trace_hardirqs_off+0xb8/0x310
[  413.750852] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  413.755018]  ? trace_hardirqs_off+0xb8/0x310
[  413.768509] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  413.772916]  __alloc_pages_slowpath+0x26e8/0x2e10
[  413.787815] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  413.792352]  ? warn_alloc+0x120/0x120
[  413.807566] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  413.812400]  ? print_usage_bug+0xc0/0xc0
[  413.821205] 4484 total pagecache pages
[  413.825006]  ? warn_alloc+0x120/0x120
[  413.833560] 0 pages in swap cache
[  413.837605]  ? warn_alloc+0x120/0x120
[  413.841469] Swap cache stats: add 0, delete 0, find 0/0
[  413.845253]  ? print_usage_bug+0xc0/0xc0
[  413.848678] Free swap  = 0kB
[  413.852463]  ? kvm_clock_read+0x18/0x30
[  413.857798] Total swap = 0kB
[  413.861854]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  413.864846] 1965979 pages RAM
[  413.868808]  ? print_usage_bug+0xc0/0xc0
[  413.871801] 0 pages HighMem/MovableOnly
[  413.876814]  ? __lock_acquire+0x62f/0x4c20
[  413.879901] 342854 pages reserved
[  413.883953]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.887910] 0 pages cma reserved
[  413.892132]  ? should_fail+0x22d/0xd01
[  413.895609] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  413.901074]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.901091]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.901107]  ? __lock_acquire+0x62f/0x4c20
[  413.904505] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  413.908327]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.914789] syz-fuzzer cpuset=/ mems_allowed=0
[  413.920046]  ? __lock_acquire+0x62f/0x4c20
[  413.920061]  ? should_fail+0x22d/0xd01
[  413.957314]  ? rcu_irq_exit+0x1a2/0x390
[  413.961297]  ? mark_held_locks+0x130/0x130
[  413.965544]  ? mark_held_locks+0x130/0x130
[  413.969780]  ? mark_held_locks+0xc7/0x130
[  413.973926]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  413.978939]  ? zap_class+0x640/0x640
[  413.982657]  ? print_usage_bug+0xc0/0xc0
[  413.986723]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.992256]  ? check_preemption_disabled+0x48/0x280
[  413.997277]  ? __lock_is_held+0xb5/0x140
[  414.001339]  __alloc_pages_nodemask+0xa80/0xde0
[  414.006002]  ? zap_class+0x640/0x640
[  414.009715]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  414.014751]  ? find_held_lock+0x36/0x1c0
[  414.018816]  ? ____cache_alloc_node+0x1c7/0x1e0
[  414.023481]  ? lock_downgrade+0x900/0x900
[  414.027637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.033179]  cache_grow_begin+0xa5/0x8c0
[  414.037234]  ? do_raw_spin_unlock+0xa7/0x330
[  414.041645]  fallback_alloc+0x204/0x2e0
[  414.045621]  ____cache_alloc_node+0x1c7/0x1e0
[  414.050161]  kmem_cache_alloc_node+0xe3/0x730
[  414.054657]  ? ipv6_get_ifaddr+0x42e/0x620
[  414.058897]  __alloc_skb+0x119/0x770
[  414.062604]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.067882]  ? netdev_alloc_frag+0x1f0/0x1f0
[  414.072291]  ? lock_downgrade+0x900/0x900
[  414.076441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.081983]  ? refcount_sub_and_test_checked+0x203/0x310
[  414.087435]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  414.092880]  ? addrconf_rs_timer+0x690/0x690
[  414.097304]  ndisc_alloc_skb+0x144/0x340
[  414.101381]  ndisc_send_rs+0x331/0x6e0
[  414.105270]  addrconf_rs_timer+0x314/0x690
[  414.109513]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.113757]  call_timer_fn+0x272/0x920
[  414.117638]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.121870]  ? process_timeout+0x40/0x40
[  414.125945]  ? __run_timers+0x7da/0xc70
[  414.129925]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.134430]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.138920]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.143156]  ? lockdep_hardirqs_on+0x296/0x5b0
[  414.147736]  ? trace_hardirqs_on+0xbd/0x310
[  414.152053]  ? kasan_check_read+0x11/0x20
[  414.156198]  ? __run_timers+0x7da/0xc70
[  414.160174]  ? trace_hardirqs_off_caller+0x310/0x310
[  414.165285]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.169523]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.173749]  __run_timers+0x7e5/0xc70
[  414.177551]  ? timer_fixup_init+0x70/0x70
[  414.181695]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  414.186726]  ? zap_class+0x640/0x640
[  414.190442]  ? enqueue_hrtimer+0x1a5/0x560
[  414.194673]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  414.199865]  ? find_held_lock+0x36/0x1c0
[  414.203925]  ? zap_class+0x640/0x640
[  414.207644]  ? pvclock_read_flags+0x160/0x160
[  414.212138]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.217674]  ? check_preemption_disabled+0x48/0x280
[  414.222693]  ? __lock_is_held+0xb5/0x140
[  414.226754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.232286]  ? check_preemption_disabled+0x48/0x280
[  414.237308]  run_timer_softirq+0x52/0xb0
[  414.241365]  ? rcu_read_lock_sched_held+0x14f/0x180
[  414.246376]  __do_softirq+0x308/0xb7e
[  414.250175]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  414.254665]  ? lock_downgrade+0x900/0x900
[  414.258813]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  414.263930]  ? pvclock_read_flags+0x160/0x160
[  414.268433]  ? lapic_next_event+0x5a/0x90
[  414.272579]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.278119]  ? kvm_clock_read+0x18/0x30
[  414.282089]  ? kvm_sched_clock_read+0x9/0x20
[  414.286516]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.292051]  ? check_preemption_disabled+0x48/0x280
[  414.297071]  irq_exit+0x17f/0x1c0
[  414.300523]  smp_apic_timer_interrupt+0x1cb/0x760
[  414.305358]  ? smp_reschedule_interrupt+0x109/0x650
[  414.310460]  ? smp_call_function_single_interrupt+0x650/0x650
[  414.316362]  ? interrupt_entry+0xb5/0xc0
[  414.320437]  ? trace_hardirqs_off_caller+0xbb/0x310
[  414.325560]  ? trace_hardirqs_off_caller+0xbb/0x310
[  414.330576]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.335433]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.340444]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.345455]  ? task_prio+0x50/0x50
[  414.349000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.354537]  ? check_preemption_disabled+0x48/0x280
[  414.359552]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.364400]  apic_timer_interrupt+0xf/0x20
[  414.368630]  </IRQ>
[  414.370865] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  414.375795] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  414.394689] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  414.402390] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  414.409654] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  414.416921] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  414.424203] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  414.431465] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  414.438768]  skb_clone+0x1bb/0x500
[  414.442309]  ? finish_task_switch+0x2f4/0x910
[  414.446801]  ? skb_split+0x11e0/0x11e0
[  414.450689]  ? preempt_notifier_register+0x200/0x200
[  414.455884]  ? __switch_to_asm+0x34/0x70
[  414.459944]  ? __switch_to_asm+0x34/0x70
[  414.464088]  ? __switch_to_asm+0x40/0x70
[  414.468155]  ? __switch_to_asm+0x34/0x70
[  414.472243]  ? __switch_to_asm+0x40/0x70
[  414.476401]  ? __switch_to_asm+0x34/0x70
[  414.480575]  ? __switch_to_asm+0x40/0x70
[  414.484632]  ? __switch_to_asm+0x34/0x70
[  414.488687]  ? __switch_to_asm+0x34/0x70
[  414.492739]  ? __switch_to_asm+0x40/0x70
[  414.496794]  ? __switch_to_asm+0x34/0x70
[  414.500859]  bpf_clone_redirect+0xb9/0x490
[  414.505102]  ? __schedule+0x8d7/0x21d0
[  414.508992]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  414.514008]  ? __sched_text_start+0x8/0x8
[  414.518153]  ? retint_kernel+0x2d/0x2d
[  414.522045]  ? find_held_lock+0x36/0x1c0
[  414.526114]  ? lock_acquire+0x1ed/0x520
[  414.530085]  ? bpf_test_run+0x3cb/0x780
[  414.534069]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.539605]  ? check_preemption_disabled+0x48/0x280
[  414.544622]  ? kasan_check_read+0x11/0x20
[  414.548766]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.554037]  ? rcu_softirq_qs+0x20/0x20
[  414.558006]  ? preempt_schedule+0x4d/0x60
[  414.562151]  ? ___preempt_schedule+0x16/0x18
[  414.566584]  ? bpf_test_run+0x25d/0x780
[  414.570571]  ? netlink_diag_dump+0x2a0/0x2a0
[  414.574983]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.580515]  ? bpf_test_init.isra.10+0x70/0x100
[  414.585193]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  414.589956]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  414.594799]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  414.600330]  ? fput+0x130/0x1a0
[  414.603609]  ? __bpf_prog_get+0x9b/0x290
[  414.607667]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  414.612506]  ? bpf_prog_test_run+0x130/0x1a0
[  414.616921]  ? __x64_sys_bpf+0x3d8/0x520
[  414.620979]  ? bpf_prog_get+0x20/0x20
[  414.624797]  ? do_syscall_64+0x1b9/0x820
[  414.628859]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  414.634235]  ? syscall_return_slowpath+0x5e0/0x5e0
[  414.639159]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.644011]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.649027]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  414.654038]  ? prepare_exit_to_usermode+0x291/0x3b0
[  414.659054]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.663901]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  414.669290] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  414.669351] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  414.676296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  414.676303] Call Trace:
[  414.682857] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  414.692110]  <IRQ>
[  414.694673] syz-executor2 cpuset=syz2 mems_allowed=0
[  414.705145]  dump_stack+0x244/0x39d
[  414.715988]  ? dump_stack_print_info.cold.1+0x20/0x20
[  414.721184]  warn_alloc.cold.116+0xb7/0x1bd
[  414.725506]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  414.730350]  ? lock_downgrade+0x900/0x900
[  414.734505]  ? trace_hardirqs_off+0xb8/0x310
[  414.738924]  ? trace_hardirqs_off+0xb8/0x310
[  414.743337]  __alloc_pages_slowpath+0x26e8/0x2e10
[  414.748223]  ? warn_alloc+0x120/0x120
[  414.752024]  ? print_usage_bug+0xc0/0xc0
[  414.756080]  ? warn_alloc+0x120/0x120
[  414.759883]  ? warn_alloc+0x120/0x120
[  414.763690]  ? print_usage_bug+0xc0/0xc0
[  414.767753]  ? print_usage_bug+0xc0/0xc0
[  414.771814]  ? __lock_acquire+0x62f/0x4c20
[  414.776052]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.781587]  ? should_fail+0x22d/0xd01
[  414.785478]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.790679]  ? __lock_acquire+0x62f/0x4c20
[  414.794921]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.800023]  ? __lock_acquire+0x62f/0x4c20
[  414.804249]  ? should_fail+0x22d/0xd01
[  414.808130]  ? find_held_lock+0x36/0x1c0
[  414.812208]  ? mark_held_locks+0x130/0x130
[  414.816445]  ? mark_held_locks+0x130/0x130
[  414.820684]  ? zap_class+0x640/0x640
[  414.824407]  ? zap_class+0x640/0x640
[  414.828120]  ? print_usage_bug+0xc0/0xc0
[  414.832176]  ? do_raw_spin_unlock+0xa7/0x330
[  414.836578]  ? zap_class+0x640/0x640
[  414.840289]  ? print_usage_bug+0xc0/0xc0
[  414.844347]  ? wq_watchdog_touch+0x9c/0xfe
[  414.848590]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.854137]  ? check_preemption_disabled+0x48/0x280
[  414.859161]  ? __lock_is_held+0xb5/0x140
[  414.863226]  __alloc_pages_nodemask+0xa80/0xde0
[  414.867897]  ? zap_class+0x640/0x640
[  414.871615]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  414.876636]  ? find_held_lock+0x36/0x1c0
[  414.880814]  ? ____cache_alloc_node+0x1c7/0x1e0
[  414.885485]  ? lock_downgrade+0x900/0x900
[  414.889725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.895714]  cache_grow_begin+0xa5/0x8c0
[  414.899777]  ? do_raw_spin_unlock+0xa7/0x330
[  414.904192]  fallback_alloc+0x204/0x2e0
[  414.908174]  ____cache_alloc_node+0x1c7/0x1e0
[  414.912673]  kmem_cache_alloc_node+0xe3/0x730
[  414.917168]  ? ipv6_get_ifaddr+0x42e/0x620
[  414.921407]  __alloc_skb+0x119/0x770
[  414.925133]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.930409]  ? netdev_alloc_frag+0x1f0/0x1f0
[  414.934814]  ? lock_downgrade+0x900/0x900
[  414.938969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.944505]  ? refcount_sub_and_test_checked+0x203/0x310
[  414.949958]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  414.955406]  ? addrconf_rs_timer+0x690/0x690
[  414.959820]  ndisc_alloc_skb+0x144/0x340
[  414.963890]  ndisc_send_rs+0x331/0x6e0
[  414.967781]  addrconf_rs_timer+0x314/0x690
[  414.972018]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.976258]  call_timer_fn+0x272/0x920
[  414.980144]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.984375]  ? process_timeout+0x40/0x40
[  414.988445]  ? mark_held_locks+0xc7/0x130
[  414.992589]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.997080]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.001570]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.005801]  ? lockdep_hardirqs_on+0x296/0x5b0
[  415.010383]  ? trace_hardirqs_on+0xbd/0x310
[  415.014708]  ? kasan_check_read+0x11/0x20
[  415.018849]  ? __run_timers+0x7da/0xc70
[  415.022829]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.027938]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.032175]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.036406]  __run_timers+0x7e5/0xc70
[  415.040211]  ? timer_fixup_init+0x70/0x70
[  415.044359]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  415.049372]  ? zap_class+0x640/0x640
[  415.053091]  ? print_usage_bug+0xc0/0xc0
[  415.057153]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  415.062730]  ? find_held_lock+0x36/0x1c0
[  415.066796]  ? zap_class+0x640/0x640
[  415.070512]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.076047]  ? check_preemption_disabled+0x48/0x280
[  415.081072]  ? __lock_is_held+0xb5/0x140
[  415.085129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.090662]  ? check_preemption_disabled+0x48/0x280
[  415.095678]  run_timer_softirq+0x52/0xb0
[  415.099818]  ? rcu_read_lock_sched_held+0x14f/0x180
[  415.104829]  __do_softirq+0x308/0xb7e
[  415.108628]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  415.113118]  ? lock_downgrade+0x900/0x900
[  415.117265]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  415.122387]  ? pvclock_read_flags+0x160/0x160
[  415.126890]  ? lapic_next_event+0x5a/0x90
[  415.131040]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.136580]  ? kvm_clock_read+0x18/0x30
[  415.140554]  ? kvm_sched_clock_read+0x9/0x20
[  415.144962]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.150498]  ? check_preemption_disabled+0x48/0x280
[  415.155518]  irq_exit+0x17f/0x1c0
[  415.158971]  smp_apic_timer_interrupt+0x1cb/0x760
[  415.163813]  ? smp_call_function_single_interrupt+0x650/0x650
[  415.169690]  ? interrupt_entry+0xb5/0xc0
[  415.173750]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.178759]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.183772]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.188610]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.193623]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.198635]  ? task_prio+0x50/0x50
[  415.202175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.207738]  ? check_preemption_disabled+0x48/0x280
[  415.212755]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.217600]  apic_timer_interrupt+0xf/0x20
[  415.221824]  </IRQ>
[  415.224060] RIP: 0010:dump_stack+0x358/0x39d
[  415.228468] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  415.247361] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  415.255064] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  415.262326] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  415.269591] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  415.276861] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  415.284156] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  415.291610]  ? dump_stack+0x34f/0x39d
[  415.295424]  ? dump_stack_print_info.cold.1+0x20/0x20
[  415.300614]  ? mark_held_locks+0x130/0x130
[  415.304862]  ? mark_held_locks+0x130/0x130
[  415.309101]  dump_header+0x27b/0xf72
[  415.312827]  ? pagefault_out_of_memory+0x197/0x197
[  415.317776]  ? __lock_acquire+0x62f/0x4c20
[  415.322019]  ? percpu_ref_get_many+0x240/0x240
[  415.326605]  ? print_usage_bug+0xc0/0xc0
[  415.330676]  ? zap_class+0x640/0x640
[  415.334394]  ? print_usage_bug+0xc0/0xc0
[  415.338454]  ? print_usage_bug+0xc0/0xc0
[  415.342524]  ? zap_class+0x640/0x640
[  415.346242]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.351778]  ? find_held_lock+0x36/0x1c0
[  415.355846]  ? mark_held_locks+0xc7/0x130
[  415.360002]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  415.365100]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  415.370204]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  415.374788]  ? trace_hardirqs_on+0xbd/0x310
[  415.379111]  ? kasan_check_read+0x11/0x20
[  415.383254]  ? ___ratelimit+0x3b4/0x672
[  415.387223]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.392322]  ? trace_hardirqs_on+0x310/0x310
[  415.396730]  ? lock_downgrade+0x900/0x900
[  415.400883]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  415.405983]  ? ___ratelimit+0x3b9/0x672
[  415.409955]  ? idr_get_free+0xf70/0xf70
[  415.413924]  ? find_held_lock+0x36/0x1c0
[  415.418002]  oom_kill_process.cold.27+0x10/0x903
[  415.422757]  ? zap_class+0x640/0x640
[  415.426473]  ? check_preemption_disabled+0x48/0x280
[  415.431490]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.436415]  ? kasan_check_read+0x11/0x20
[  415.440561]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.445837]  ? oom_evaluate_task+0x540/0x540
[  415.450253]  ? find_held_lock+0x36/0x1c0
[  415.454315]  ? out_of_memory+0x974/0x1430
[  415.458458]  ? lock_downgrade+0x900/0x900
[  415.462600]  ? check_preemption_disabled+0x48/0x280
[  415.467615]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.472539]  ? kasan_check_read+0x11/0x20
[  415.476685]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.481958]  ? rcu_softirq_qs+0x20/0x20
[  415.485935]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.491465]  ? oom_evaluate_task+0x302/0x540
[  415.495874]  out_of_memory+0xa84/0x1430
[  415.499862]  ? oom_killer_disable+0x3a0/0x3a0
[  415.504356]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  415.509284]  ? __ww_mutex_check_waiters+0x160/0x160
[  415.514307]  __alloc_pages_slowpath+0x2354/0x2e10
[  415.519175]  ? warn_alloc+0x120/0x120
[  415.522977]  ? mark_held_locks+0x130/0x130
[  415.527236]  ? find_get_entry+0xaae/0x1120
[  415.531562]  ? filemap_map_pages+0x1a20/0x1a20
[  415.536145]  ? zap_class+0x640/0x640
[  415.539869]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.545406]  ? check_preemption_disabled+0x48/0x280
[  415.550419]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.555956]  ? should_fail+0x22d/0xd01
[  415.559854]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  415.564959]  ? zap_class+0x640/0x640
[  415.568712]  ? __lock_is_held+0xb5/0x140
[  415.572781]  ? mark_held_locks+0x130/0x130
[  415.577015]  ? lock_release+0xa00/0xa00
[  415.580989]  ? perf_trace_sched_process_exec+0x860/0x860
[  415.586435]  ? xa_load+0x2ba/0x460
[  415.589972]  ? lock_downgrade+0x900/0x900
[  415.594118]  ? __might_sleep+0x95/0x190
[  415.598094]  __alloc_pages_nodemask+0xa80/0xde0
[  415.602768]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  415.607780]  ? __page_cache_alloc+0x191/0x5c0
[  415.612274]  ? xa_load+0x2e1/0x460
[  415.615812]  ? xa_clear_mark+0x40/0x40
[  415.619719]  ? zap_class+0x640/0x640
[  415.623440]  ? zap_class+0x640/0x640
[  415.627148]  ? zap_class+0x640/0x640
[  415.630866]  ? __do_page_cache_readahead+0x663/0x810
[  415.635986]  ? find_held_lock+0x36/0x1c0
[  415.640051]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  415.645592]  alloc_pages_current+0x173/0x350
[  415.650007]  __page_cache_alloc+0x38c/0x5c0
[  415.654328]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.659257]  ? kasan_check_read+0x11/0x20
[  415.663399]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.668675]  ? generic_perform_write+0x6a0/0x6a0
[  415.673429]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.678964]  ? check_preemption_disabled+0x48/0x280
[  415.683987]  filemap_fault+0x1595/0x25f0
[  415.688059]  ? __lock_page_or_retry+0xa00/0xa00
[  415.692731]  ? mark_held_locks+0x130/0x130
[  415.697027]  ? filemap_map_pages+0xd6b/0x1a20
[  415.701519]  ? lock_downgrade+0x900/0x900
[  415.705664]  ? check_preemption_disabled+0x48/0x280
[  415.710688]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.715615]  ? kasan_check_read+0x11/0x20
[  415.719759]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.725031]  ? rcu_softirq_qs+0x20/0x20
[  415.729018]  ? filemap_map_pages+0xd92/0x1a20
[  415.733521]  ? find_get_entries_tag+0x1400/0x1400
[  415.738361]  ? find_held_lock+0x36/0x1c0
[  415.742439]  ? lock_acquire+0x1ed/0x520
[  415.746410]  ? ext4_filemap_fault+0x7a/0xad
[  415.750737]  ? lock_release+0xa00/0xa00
[  415.754708]  ? perf_trace_sched_process_exec+0x860/0x860
[  415.760159]  ? print_usage_bug+0xc0/0xc0
[  415.764232]  ? down_read+0x8d/0x120
[  415.767852]  ? ext4_filemap_fault+0x7a/0xad
[  415.772181]  ? __down_interruptible+0x700/0x700
[  415.776879]  ? find_held_lock+0x36/0x1c0
[  415.780941]  ext4_filemap_fault+0x82/0xad
[  415.785089]  __do_fault+0x100/0x6b0
[  415.788715]  ? lock_downgrade+0x900/0x900
[  415.792863]  ? pmd_devmap_trans_unstable+0x220/0x220
[  415.797974]  ? kasan_check_read+0x11/0x20
[  415.802120]  ? do_raw_spin_unlock+0xa7/0x330
[  415.806523]  ? do_raw_spin_trylock+0x270/0x270
[  415.811116]  __handle_mm_fault+0x3ea0/0x5be0
[  415.815522]  ? perf_trace_lock+0x7a0/0x7a0
[  415.819763]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  415.824607]  ? __switch_to_asm+0x34/0x70
[  415.828663]  ? __switch_to_asm+0x34/0x70
[  415.832736]  ? zap_class+0x640/0x640
[  415.836449]  ? zap_class+0x640/0x640
[  415.840167]  ? __x64_sys_futex+0x53e/0x6a0
[  415.844402]  ? find_held_lock+0x36/0x1c0
[  415.848472]  ? handle_mm_fault+0x42a/0xc70
[  415.852798]  ? lock_downgrade+0x900/0x900
[  415.856952]  ? check_preemption_disabled+0x48/0x280
[  415.861970]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.866901]  ? kasan_check_read+0x11/0x20
[  415.871051]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.876332]  ? rcu_softirq_qs+0x20/0x20
[  415.880309]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.885416]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.890954]  ? check_preemption_disabled+0x48/0x280
[  415.896099]  handle_mm_fault+0x54f/0xc70
[  415.900182]  ? __handle_mm_fault+0x5be0/0x5be0
[  415.904767]  ? find_vma+0x34/0x190
[  415.908314]  __do_page_fault+0x5e8/0xe60
[  415.912376]  ? trace_hardirqs_off+0xb8/0x310
[  415.916794]  do_page_fault+0xf2/0x7e0
[  415.920603]  ? vmalloc_sync_all+0x30/0x30
[  415.924749]  ? error_entry+0x70/0xd0
[  415.928461]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.933473]  ? trace_hardirqs_on_caller+0xc0/0x310
[  415.938402]  ? syscall_return_slowpath+0x5e0/0x5e0
[  415.943340]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.948198]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.953213]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  415.958666]  ? prepare_exit_to_usermode+0x291/0x3b0
[  415.963682]  ? page_fault+0x8/0x30
[  415.967225]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.972087]  ? page_fault+0x8/0x30
[  415.975630]  page_fault+0x1e/0x30
[  415.979083] RIP: 0033:0x404068
[  415.982291] Code: Bad RIP value.
[  415.985649] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  415.991006] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  415.998294] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  416.005561] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  416.012946] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  416.020209] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  416.027501] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  416.027506] warn_alloc_show_mem: 1 callbacks suppressed
[  416.027512] Mem-Info:
[  416.034870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  416.040236] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  416.040236]  active_file:13 inactive_file:13 isolated_file:0
[  416.040236]  unevictable:0 dirty:0 writeback:0 unstable:0
[  416.040236]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  416.040236]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  416.040236]  free:13747 free_pcp:348 free_cma:0
[  416.042607] Call Trace:
[  416.051985] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  416.085007]  <IRQ>
[  416.087575] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  416.115431]  dump_stack+0x244/0x39d
[  416.117551] lowmem_reserve[]: 0 2818 6321 6321
[  416.143668]  ? dump_stack_print_info.cold.1+0x20/0x20
[  416.147265] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  416.151856]  warn_alloc.cold.116+0xb7/0x1bd
[  416.157006] lowmem_reserve[]: 0 0 3503 3503
[  416.184501]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  416.188802] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  416.193120]  ? lock_downgrade+0x900/0x900
[  416.197931] lowmem_reserve[]: 0 0 0 0
[  416.227293]  ? trace_hardirqs_off+0xb8/0x310
[  416.231415] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  416.235215]  ? trace_hardirqs_off+0xb8/0x310
[  416.239590] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  416.253117]  __alloc_pages_slowpath+0x26e8/0x2e10
[  416.257495] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  416.272424]  ? warn_alloc+0x120/0x120
[  416.277226] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  416.292385]  ? print_usage_bug+0xc0/0xc0
[  416.296162] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  416.304983]  ? warn_alloc+0x120/0x120
[  416.309020] 4484 total pagecache pages
[  416.317587]  ? warn_alloc+0x120/0x120
[  416.321367] 0 pages in swap cache
[  416.325238]  ? print_usage_bug+0xc0/0xc0
[  416.329008] Swap cache stats: add 0, delete 0, find 0/0
[  416.329015] Free swap  = 0kB
[  416.332461]  ? kvm_clock_read+0x18/0x30
[  416.336493] Total swap = 0kB
[  416.341862]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  416.344851] 1965979 pages RAM
[  416.348816]  ? print_usage_bug+0xc0/0xc0
[  416.351806] 0 pages HighMem/MovableOnly
[  416.351813] 342854 pages reserved
[  416.356820]  ? __lock_acquire+0x62f/0x4c20
[  416.359903] 0 pages cma reserved
[  416.363964]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.367970] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  416.371358]  ? should_fail+0x22d/0xd01
[  416.375620] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  416.378918]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.384426] syz-fuzzer cpuset=/ mems_allowed=0
[  416.390908]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.419904]  ? __lock_acquire+0x62f/0x4c20
[  416.424145]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.429248]  ? __lock_acquire+0x62f/0x4c20
[  416.433479]  ? should_fail+0x22d/0xd01
[  416.437366]  ? rcu_irq_exit+0x1a2/0x390
[  416.441352]  ? mark_held_locks+0x130/0x130
[  416.445587]  ? mark_held_locks+0x130/0x130
[  416.449826]  ? mark_held_locks+0xc7/0x130
[  416.453973]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  416.458990]  ? zap_class+0x640/0x640
[  416.462701]  ? print_usage_bug+0xc0/0xc0
[  416.466772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.472316]  ? check_preemption_disabled+0x48/0x280
[  416.477347]  ? __lock_is_held+0xb5/0x140
[  416.481416]  __alloc_pages_nodemask+0xa80/0xde0
[  416.486089]  ? zap_class+0x640/0x640
[  416.489810]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  416.494837]  ? find_held_lock+0x36/0x1c0
[  416.498906]  ? ____cache_alloc_node+0x1c7/0x1e0
[  416.503576]  ? lock_downgrade+0x900/0x900
[  416.507726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.513274]  cache_grow_begin+0xa5/0x8c0
[  416.517341]  ? do_raw_spin_unlock+0xa7/0x330
[  416.521764]  fallback_alloc+0x204/0x2e0
[  416.525744]  ____cache_alloc_node+0x1c7/0x1e0
[  416.530270]  kmem_cache_alloc_node+0xe3/0x730
[  416.534774]  ? ipv6_get_ifaddr+0x42e/0x620
[  416.539020]  __alloc_skb+0x119/0x770
[  416.542730]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.548014]  ? netdev_alloc_frag+0x1f0/0x1f0
[  416.552424]  ? lock_downgrade+0x900/0x900
[  416.556576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.562110]  ? refcount_sub_and_test_checked+0x203/0x310
[  416.567569]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  416.573017]  ? addrconf_rs_timer+0x690/0x690
[  416.577434]  ndisc_alloc_skb+0x144/0x340
[  416.581499]  ndisc_send_rs+0x331/0x6e0
[  416.585391]  addrconf_rs_timer+0x314/0x690
[  416.589650]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.593905]  call_timer_fn+0x272/0x920
[  416.597789]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.602021]  ? process_timeout+0x40/0x40
[  416.606089]  ? __run_timers+0x7da/0xc70
[  416.610074]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.614567]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.619056]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.623309]  ? lockdep_hardirqs_on+0x296/0x5b0
[  416.628011]  ? trace_hardirqs_on+0xbd/0x310
[  416.632333]  ? kasan_check_read+0x11/0x20
[  416.636476]  ? __run_timers+0x7da/0xc70
[  416.640452]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.645558]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.649797]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.654029]  __run_timers+0x7e5/0xc70
[  416.657836]  ? timer_fixup_init+0x70/0x70
[  416.661985]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  416.666998]  ? zap_class+0x640/0x640
[  416.670717]  ? enqueue_hrtimer+0x1a5/0x560
[  416.674956]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  416.680152]  ? find_held_lock+0x36/0x1c0
[  416.684216]  ? zap_class+0x640/0x640
[  416.687939]  ? pvclock_read_flags+0x160/0x160
[  416.692431]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.697968]  ? check_preemption_disabled+0x48/0x280
[  416.702995]  ? __lock_is_held+0xb5/0x140
[  416.707054]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.712590]  ? check_preemption_disabled+0x48/0x280
[  416.717609]  run_timer_softirq+0x52/0xb0
[  416.721672]  ? rcu_read_lock_sched_held+0x14f/0x180
[  416.726692]  __do_softirq+0x308/0xb7e
[  416.730494]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  416.734990]  ? lock_downgrade+0x900/0x900
[  416.739141]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  416.744248]  ? pvclock_read_flags+0x160/0x160
[  416.748749]  ? lapic_next_event+0x5a/0x90
[  416.752900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.758440]  ? kvm_clock_read+0x18/0x30
[  416.762411]  ? kvm_sched_clock_read+0x9/0x20
[  416.766823]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.772357]  ? check_preemption_disabled+0x48/0x280
[  416.777410]  irq_exit+0x17f/0x1c0
[  416.780868]  smp_apic_timer_interrupt+0x1cb/0x760
[  416.785707]  ? smp_reschedule_interrupt+0x109/0x650
[  416.790741]  ? smp_call_function_single_interrupt+0x650/0x650
[  416.796621]  ? interrupt_entry+0xb5/0xc0
[  416.800683]  ? trace_hardirqs_off_caller+0xbb/0x310
[  416.805694]  ? trace_hardirqs_off_caller+0xbb/0x310
[  416.810710]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  416.815566]  ? trace_hardirqs_on_caller+0x310/0x310
[  416.820579]  ? trace_hardirqs_on_caller+0x310/0x310
[  416.825597]  ? task_prio+0x50/0x50
[  416.829145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.834683]  ? check_preemption_disabled+0x48/0x280
[  416.839703]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  416.844558]  apic_timer_interrupt+0xf/0x20
[  416.848785]  </IRQ>
[  416.851023] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  416.855952] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  416.874850] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  416.882556] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  416.889820] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  416.897451] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  416.904720] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  416.911993] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  416.919308]  skb_clone+0x1bb/0x500
[  416.922850]  ? finish_task_switch+0x2f4/0x910
[  416.927343]  ? skb_split+0x11e0/0x11e0
[  416.931243]  ? preempt_notifier_register+0x200/0x200
[  416.936347]  ? __switch_to_asm+0x34/0x70
[  416.940401]  ? __switch_to_asm+0x34/0x70
[  416.944460]  ? __switch_to_asm+0x40/0x70
[  416.948518]  ? __switch_to_asm+0x34/0x70
[  416.952577]  ? __switch_to_asm+0x40/0x70
[  416.956637]  ? __switch_to_asm+0x34/0x70
[  416.960695]  ? __switch_to_asm+0x40/0x70
[  416.964756]  ? __switch_to_asm+0x34/0x70
[  416.968815]  ? __switch_to_asm+0x34/0x70
[  416.972870]  ? __switch_to_asm+0x40/0x70
[  416.976929]  ? __switch_to_asm+0x34/0x70
[  416.980992]  bpf_clone_redirect+0xb9/0x490
[  416.985227]  ? __schedule+0x8d7/0x21d0
[  416.989115]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  416.994135]  ? __sched_text_start+0x8/0x8
[  416.998294]  ? retint_kernel+0x2d/0x2d
[  417.002191]  ? find_held_lock+0x36/0x1c0
[  417.006257]  ? lock_acquire+0x1ed/0x520
[  417.010233]  ? bpf_test_run+0x3cb/0x780
[  417.014303]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.019845]  ? check_preemption_disabled+0x48/0x280
[  417.024869]  ? kasan_check_read+0x11/0x20
[  417.029015]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.034293]  ? rcu_softirq_qs+0x20/0x20
[  417.038285]  ? preempt_schedule+0x4d/0x60
[  417.042432]  ? ___preempt_schedule+0x16/0x18
[  417.046848]  ? bpf_test_run+0x25d/0x780
[  417.050830]  ? netlink_diag_dump+0x2a0/0x2a0
[  417.055255]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.061331]  ? bpf_test_init.isra.10+0x70/0x100
[  417.066005]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  417.070766]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  417.075607]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  417.081145]  ? fput+0x130/0x1a0
[  417.084424]  ? __bpf_prog_get+0x9b/0x290
[  417.088484]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  417.093321]  ? bpf_prog_test_run+0x130/0x1a0
[  417.097741]  ? __x64_sys_bpf+0x3d8/0x520
[  417.101807]  ? bpf_prog_get+0x20/0x20
[  417.105622]  ? do_syscall_64+0x1b9/0x820
[  417.109720]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  417.115084]  ? syscall_return_slowpath+0x5e0/0x5e0
[  417.120021]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.124866]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.129884]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  417.134903]  ? prepare_exit_to_usermode+0x291/0x3b0
[  417.139929]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.144780]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  417.150163] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  417.150227] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  417.157169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  417.157174] Call Trace:
[  417.157181]  <IRQ>
[  417.157197]  dump_stack+0x244/0x39d
[  417.157215]  ? dump_stack_print_info.cold.1+0x20/0x20
[  417.163747] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  417.173050]  warn_alloc.cold.116+0xb7/0x1bd
[  417.175612] syz-executor2 cpuset=syz2 mems_allowed=0
[  417.177768]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  417.211232]  ? lock_downgrade+0x900/0x900
[  417.215512]  ? trace_hardirqs_off+0xb8/0x310
[  417.219926]  ? trace_hardirqs_off+0xb8/0x310
[  417.224339]  __alloc_pages_slowpath+0x26e8/0x2e10
[  417.229203]  ? warn_alloc+0x120/0x120
[  417.233006]  ? print_usage_bug+0xc0/0xc0
[  417.237178]  ? warn_alloc+0x120/0x120
[  417.240978]  ? warn_alloc+0x120/0x120
[  417.244779]  ? print_usage_bug+0xc0/0xc0
[  417.248841]  ? print_usage_bug+0xc0/0xc0
[  417.252993]  ? __lock_acquire+0x62f/0x4c20
[  417.257233]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.262774]  ? should_fail+0x22d/0xd01
[  417.267362]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.272464]  ? __lock_acquire+0x62f/0x4c20
[  417.276706]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.281820]  ? __lock_acquire+0x62f/0x4c20
[  417.286048]  ? should_fail+0x22d/0xd01
[  417.289932]  ? find_held_lock+0x36/0x1c0
[  417.294000]  ? mark_held_locks+0x130/0x130
[  417.298236]  ? mark_held_locks+0x130/0x130
[  417.302477]  ? zap_class+0x640/0x640
[  417.306188]  ? zap_class+0x640/0x640
[  417.309906]  ? print_usage_bug+0xc0/0xc0
[  417.314049]  ? do_raw_spin_unlock+0xa7/0x330
[  417.318454]  ? zap_class+0x640/0x640
[  417.322165]  ? print_usage_bug+0xc0/0xc0
[  417.326239]  ? wq_watchdog_touch+0x9c/0xfe
[  417.330477]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.336010]  ? check_preemption_disabled+0x48/0x280
[  417.341032]  ? __lock_is_held+0xb5/0x140
[  417.345103]  __alloc_pages_nodemask+0xa80/0xde0
[  417.349769]  ? zap_class+0x640/0x640
[  417.353483]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  417.358508]  ? find_held_lock+0x36/0x1c0
[  417.362577]  ? ____cache_alloc_node+0x1c7/0x1e0
[  417.367254]  ? lock_downgrade+0x900/0x900
[  417.371405]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.376954]  cache_grow_begin+0xa5/0x8c0
[  417.381010]  ? do_raw_spin_unlock+0xa7/0x330
[  417.385430]  fallback_alloc+0x204/0x2e0
[  417.389426]  ____cache_alloc_node+0x1c7/0x1e0
[  417.393924]  kmem_cache_alloc_node+0xe3/0x730
[  417.398419]  ? ipv6_get_ifaddr+0x42e/0x620
[  417.402664]  __alloc_skb+0x119/0x770
[  417.406815]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.412091]  ? netdev_alloc_frag+0x1f0/0x1f0
[  417.416498]  ? lock_downgrade+0x900/0x900
[  417.420652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.426191]  ? refcount_sub_and_test_checked+0x203/0x310
[  417.431642]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  417.437090]  ? addrconf_rs_timer+0x690/0x690
[  417.441506]  ndisc_alloc_skb+0x144/0x340
[  417.445570]  ndisc_send_rs+0x331/0x6e0
[  417.449469]  addrconf_rs_timer+0x314/0x690
[  417.453712]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.457964]  call_timer_fn+0x272/0x920
[  417.461853]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.466088]  ? process_timeout+0x40/0x40
[  417.470158]  ? mark_held_locks+0xc7/0x130
[  417.474308]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.478796]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.483289]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.487520]  ? lockdep_hardirqs_on+0x296/0x5b0
[  417.492098]  ? trace_hardirqs_on+0xbd/0x310
[  417.496415]  ? kasan_check_read+0x11/0x20
[  417.500557]  ? __run_timers+0x7da/0xc70
[  417.504530]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.509634]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.513873]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.518275]  __run_timers+0x7e5/0xc70
[  417.522097]  ? timer_fixup_init+0x70/0x70
[  417.526246]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  417.531257]  ? zap_class+0x640/0x640
[  417.534969]  ? print_usage_bug+0xc0/0xc0
[  417.539031]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  417.544225]  ? find_held_lock+0x36/0x1c0
[  417.548288]  ? zap_class+0x640/0x640
[  417.552003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.557569]  ? check_preemption_disabled+0x48/0x280
[  417.562593]  ? __lock_is_held+0xb5/0x140
[  417.566651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.572191]  ? check_preemption_disabled+0x48/0x280
[  417.577212]  run_timer_softirq+0x52/0xb0
[  417.581271]  ? rcu_read_lock_sched_held+0x14f/0x180
[  417.586391]  __do_softirq+0x308/0xb7e
[  417.590196]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  417.594695]  ? lock_downgrade+0x900/0x900
[  417.598845]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  417.603955]  ? pvclock_read_flags+0x160/0x160
[  417.608446]  ? lapic_next_event+0x5a/0x90
[  417.612689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.618245]  ? kvm_clock_read+0x18/0x30
[  417.622219]  ? kvm_sched_clock_read+0x9/0x20
[  417.626630]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.632165]  ? check_preemption_disabled+0x48/0x280
[  417.637189]  irq_exit+0x17f/0x1c0
[  417.640639]  smp_apic_timer_interrupt+0x1cb/0x760
[  417.645491]  ? smp_call_function_single_interrupt+0x650/0x650
[  417.651474]  ? interrupt_entry+0xb5/0xc0
[  417.655531]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.660630]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.665654]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.670500]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.675515]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.680527]  ? task_prio+0x50/0x50
[  417.684066]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.689603]  ? check_preemption_disabled+0x48/0x280
[  417.694623]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.699472]  apic_timer_interrupt+0xf/0x20
[  417.703698]  </IRQ>
[  417.705951] RIP: 0010:dump_stack+0x358/0x39d
[  417.710362] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  417.729256] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  417.736957] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  417.744222] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  417.751485] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  417.758749] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  417.766100] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  417.773383]  ? dump_stack+0x34f/0x39d
[  417.777294]  ? dump_stack_print_info.cold.1+0x20/0x20
[  417.782483]  ? mark_held_locks+0x130/0x130
[  417.786725]  ? mark_held_locks+0x130/0x130
[  417.790970]  dump_header+0x27b/0xf72
[  417.794784]  ? pagefault_out_of_memory+0x197/0x197
[  417.799818]  ? __lock_acquire+0x62f/0x4c20
[  417.804054]  ? percpu_ref_get_many+0x240/0x240
[  417.808635]  ? print_usage_bug+0xc0/0xc0
[  417.812712]  ? zap_class+0x640/0x640
[  417.816441]  ? print_usage_bug+0xc0/0xc0
[  417.820498]  ? print_usage_bug+0xc0/0xc0
[  417.824561]  ? zap_class+0x640/0x640
[  417.828278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.833818]  ? find_held_lock+0x36/0x1c0
[  417.837883]  ? mark_held_locks+0xc7/0x130
[  417.842032]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  417.847128]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  417.852230]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  417.856808]  ? trace_hardirqs_on+0xbd/0x310
[  417.861125]  ? kasan_check_read+0x11/0x20
[  417.865268]  ? ___ratelimit+0x3b4/0x672
[  417.869239]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.874512]  ? trace_hardirqs_on+0x310/0x310
[  417.878918]  ? lock_downgrade+0x900/0x900
[  417.883156]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  417.888257]  ? ___ratelimit+0x3b9/0x672
[  417.892662]  ? idr_get_free+0xf70/0xf70
[  417.896634]  ? find_held_lock+0x36/0x1c0
[  417.900718]  oom_kill_process.cold.27+0x10/0x903
[  417.905469]  ? zap_class+0x640/0x640
[  417.909190]  ? check_preemption_disabled+0x48/0x280
[  417.914230]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  417.919166]  ? kasan_check_read+0x11/0x20
[  417.923312]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.928585]  ? oom_evaluate_task+0x540/0x540
[  417.932995]  ? find_held_lock+0x36/0x1c0
[  417.937061]  ? out_of_memory+0x974/0x1430
[  417.941209]  ? lock_downgrade+0x900/0x900
[  417.945355]  ? check_preemption_disabled+0x48/0x280
[  417.950379]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  417.955304]  ? kasan_check_read+0x11/0x20
[  417.959451]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.964726]  ? rcu_softirq_qs+0x20/0x20
[  417.968716]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.974255]  ? oom_evaluate_task+0x302/0x540
[  417.978672]  out_of_memory+0xa84/0x1430
[  417.982672]  ? oom_killer_disable+0x3a0/0x3a0
[  417.987174]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  417.992222]  ? __ww_mutex_check_waiters+0x160/0x160
[  417.997242]  __alloc_pages_slowpath+0x2354/0x2e10
[  418.002108]  ? warn_alloc+0x120/0x120
[  418.005907]  ? mark_held_locks+0x130/0x130
[  418.010164]  ? find_get_entry+0xaae/0x1120
[  418.014405]  ? filemap_map_pages+0x1a20/0x1a20
[  418.018987]  ? zap_class+0x640/0x640
[  418.022843]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.028378]  ? check_preemption_disabled+0x48/0x280
[  418.033398]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.038931]  ? should_fail+0x22d/0xd01
[  418.042828]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.047928]  ? zap_class+0x640/0x640
[  418.051668]  ? __lock_is_held+0xb5/0x140
[  418.055741]  ? mark_held_locks+0x130/0x130
[  418.059978]  ? lock_release+0xa00/0xa00
[  418.063958]  ? perf_trace_sched_process_exec+0x860/0x860
[  418.069408]  ? xa_load+0x2ba/0x460
[  418.072964]  ? lock_downgrade+0x900/0x900
[  418.077116]  ? __might_sleep+0x95/0x190
[  418.081095]  __alloc_pages_nodemask+0xa80/0xde0
[  418.085768]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  418.090790]  ? __page_cache_alloc+0x191/0x5c0
[  418.095280]  ? xa_load+0x2e1/0x460
[  418.098815]  ? xa_clear_mark+0x40/0x40
[  418.102707]  ? zap_class+0x640/0x640
[  418.106447]  ? zap_class+0x640/0x640
[  418.110156]  ? zap_class+0x640/0x640
[  418.113869]  ? __do_page_cache_readahead+0x663/0x810
[  418.118972]  ? find_held_lock+0x36/0x1c0
[  418.123030]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  418.128569]  alloc_pages_current+0x173/0x350
[  418.132981]  __page_cache_alloc+0x38c/0x5c0
[  418.137311]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.142236]  ? kasan_check_read+0x11/0x20
[  418.146387]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.151661]  ? generic_perform_write+0x6a0/0x6a0
[  418.156421]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.161953]  ? check_preemption_disabled+0x48/0x280
[  418.166979]  filemap_fault+0x1595/0x25f0
[  418.171052]  ? __lock_page_or_retry+0xa00/0xa00
[  418.175726]  ? mark_held_locks+0x130/0x130
[  418.179969]  ? filemap_map_pages+0xd6b/0x1a20
[  418.184481]  ? lock_downgrade+0x900/0x900
[  418.188630]  ? check_preemption_disabled+0x48/0x280
[  418.193668]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.198596]  ? kasan_check_read+0x11/0x20
[  418.202753]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.208027]  ? rcu_softirq_qs+0x20/0x20
[  418.212014]  ? filemap_map_pages+0xd92/0x1a20
[  418.216525]  ? find_get_entries_tag+0x1400/0x1400
[  418.221385]  ? find_held_lock+0x36/0x1c0
[  418.225466]  ? lock_acquire+0x1ed/0x520
[  418.229446]  ? ext4_filemap_fault+0x7a/0xad
[  418.233768]  ? lock_release+0xa00/0xa00
[  418.237738]  ? perf_trace_sched_process_exec+0x860/0x860
[  418.243184]  ? print_usage_bug+0xc0/0xc0
[  418.247254]  ? down_read+0x8d/0x120
[  418.250882]  ? ext4_filemap_fault+0x7a/0xad
[  418.255212]  ? __down_interruptible+0x700/0x700
[  418.259878]  ? find_held_lock+0x36/0x1c0
[  418.263940]  ext4_filemap_fault+0x82/0xad
[  418.268085]  __do_fault+0x100/0x6b0
[  418.271718]  ? lock_downgrade+0x900/0x900
[  418.275867]  ? pmd_devmap_trans_unstable+0x220/0x220
[  418.280971]  ? kasan_check_read+0x11/0x20
[  418.285128]  ? do_raw_spin_unlock+0xa7/0x330
[  418.289545]  ? do_raw_spin_trylock+0x270/0x270
[  418.294138]  __handle_mm_fault+0x3ea0/0x5be0
[  418.298538]  ? perf_trace_lock+0x7a0/0x7a0
[  418.302773]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  418.307624]  ? __switch_to_asm+0x34/0x70
[  418.311691]  ? __switch_to_asm+0x34/0x70
[  418.315762]  ? zap_class+0x640/0x640
[  418.319473]  ? zap_class+0x640/0x640
[  418.323180]  ? __x64_sys_futex+0x53e/0x6a0
[  418.327417]  ? find_held_lock+0x36/0x1c0
[  418.331507]  ? handle_mm_fault+0x42a/0xc70
[  418.335741]  ? lock_downgrade+0x900/0x900
[  418.339883]  ? check_preemption_disabled+0x48/0x280
[  418.344899]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.349850]  ? kasan_check_read+0x11/0x20
[  418.353994]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.359291]  ? rcu_softirq_qs+0x20/0x20
[  418.363267]  ? trace_hardirqs_off_caller+0x310/0x310
[  418.368366]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.373910]  ? check_preemption_disabled+0x48/0x280
[  418.378943]  handle_mm_fault+0x54f/0xc70
[  418.383005]  ? __handle_mm_fault+0x5be0/0x5be0
[  418.387599]  ? find_vma+0x34/0x190
[  418.391150]  __do_page_fault+0x5e8/0xe60
[  418.395218]  ? trace_hardirqs_off+0xb8/0x310
[  418.399633]  do_page_fault+0xf2/0x7e0
[  418.403540]  ? vmalloc_sync_all+0x30/0x30
[  418.407684]  ? error_entry+0x70/0xd0
[  418.411395]  ? trace_hardirqs_off_caller+0xbb/0x310
[  418.416407]  ? trace_hardirqs_on_caller+0xc0/0x310
[  418.421333]  ? syscall_return_slowpath+0x5e0/0x5e0
[  418.426259]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.431118]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.436135]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  418.441608]  ? prepare_exit_to_usermode+0x291/0x3b0
[  418.446657]  ? page_fault+0x8/0x30
[  418.450195]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.455034]  ? page_fault+0x8/0x30
[  418.458570]  page_fault+0x1e/0x30
[  418.462032] RIP: 0033:0x404068
[  418.465232] Code: Bad RIP value.
[  418.468592] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  418.473965] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  418.481230] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  418.488493] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  418.495760] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  418.503025] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  418.510313] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  418.510318] warn_alloc_show_mem: 1 callbacks suppressed
[  418.510324] Mem-Info:
[  418.517679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  418.523045] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  418.523045]  active_file:13 inactive_file:13 isolated_file:0
[  418.523045]  unevictable:0 dirty:0 writeback:0 unstable:0
[  418.523045]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  418.523045]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  418.523045]  free:13747 free_pcp:348 free_cma:0
[  418.525416] Call Trace:
[  418.534792] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  418.568034]  <IRQ>
[  418.570605] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  418.598437]  dump_stack+0x244/0x39d
[  418.600557] lowmem_reserve[]: 0 2818 6321 6321
[  418.626660]  ? dump_stack_print_info.cold.1+0x20/0x20
[  418.630260] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  418.634848]  warn_alloc.cold.116+0xb7/0x1bd
[  418.639995] lowmem_reserve[]: 0 0 3503 3503
[  418.667487]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  418.671788] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  418.676107]  ? lock_downgrade+0x900/0x900
[  418.680919] lowmem_reserve[]: 0 0 0 0
[  418.710283]  ? trace_hardirqs_off+0xb8/0x310
[  418.714531] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  418.718329]  ? trace_hardirqs_off+0xb8/0x310
[  418.722717] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  418.736237]  __alloc_pages_slowpath+0x26e8/0x2e10
[  418.740612] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  418.755540]  ? warn_alloc+0x120/0x120
[  418.760371] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  418.775525]  ? print_usage_bug+0xc0/0xc0
[  418.779300] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  418.788116]  ? warn_alloc+0x120/0x120
[  418.792154] 4484 total pagecache pages
[  418.800715]  ? warn_alloc+0x120/0x120
[  418.804494] 0 pages in swap cache
[  418.808361]  ? print_usage_bug+0xc0/0xc0
[  418.812160] Swap cache stats: add 0, delete 0, find 0/0
[  418.815611]  ? print_usage_bug+0xc0/0xc0
[  418.819650] Free swap  = 0kB
[  418.825001]  ? __lock_acquire+0x62f/0x4c20
[  418.829036] Total swap = 0kB
[  418.832045]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.836249] 1965979 pages RAM
[  418.839254]  ? should_fail+0x22d/0xd01
[  418.844776] 0 pages HighMem/MovableOnly
[  418.844783] 342854 pages reserved
[  418.847884]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.851742] 0 pages cma reserved
[  418.855705]  ? __lock_acquire+0x62f/0x4c20
[  418.859226] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  418.864259]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.867701] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  418.871827]  ? __lock_acquire+0x62f/0x4c20
[  418.878385] syz-fuzzer cpuset=/ mems_allowed=0
[  418.883556]  ? should_fail+0x22d/0xd01
[  418.883580]  ? find_held_lock+0x36/0x1c0
[  418.910978]  ? mark_held_locks+0x130/0x130
[  418.915217]  ? mark_held_locks+0x130/0x130
[  418.919463]  ? zap_class+0x640/0x640
[  418.923173]  ? zap_class+0x640/0x640
[  418.926884]  ? print_usage_bug+0xc0/0xc0
[  418.930938]  ? do_raw_spin_unlock+0xa7/0x330
[  418.935344]  ? zap_class+0x640/0x640
[  418.939058]  ? print_usage_bug+0xc0/0xc0
[  418.943121]  ? wq_watchdog_touch+0x9c/0xfe
[  418.947357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.952897]  ? check_preemption_disabled+0x48/0x280
[  418.957921]  ? __lock_is_held+0xb5/0x140
[  418.961991]  __alloc_pages_nodemask+0xa80/0xde0
[  418.966656]  ? zap_class+0x640/0x640
[  418.970374]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  418.975395]  ? find_held_lock+0x36/0x1c0
[  418.979463]  ? ____cache_alloc_node+0x1c7/0x1e0
[  418.984134]  ? lock_downgrade+0x900/0x900
[  418.988286]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.993844]  cache_grow_begin+0xa5/0x8c0
[  418.997900]  ? do_raw_spin_unlock+0xa7/0x330
[  419.002315]  fallback_alloc+0x204/0x2e0
[  419.006301]  ____cache_alloc_node+0x1c7/0x1e0
[  419.010794]  kmem_cache_alloc_node+0xe3/0x730
[  419.015290]  ? ipv6_get_ifaddr+0x42e/0x620
[  419.019535]  __alloc_skb+0x119/0x770
[  419.023251]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.028547]  ? netdev_alloc_frag+0x1f0/0x1f0
[  419.032961]  ? lock_downgrade+0x900/0x900
[  419.037113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.042647]  ? refcount_sub_and_test_checked+0x203/0x310
[  419.048097]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  419.053547]  ? addrconf_rs_timer+0x690/0x690
[  419.058083]  ndisc_alloc_skb+0x144/0x340
[  419.062698]  ndisc_send_rs+0x331/0x6e0
[  419.066592]  addrconf_rs_timer+0x314/0x690
[  419.070832]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.075072]  call_timer_fn+0x272/0x920
[  419.078961]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.083192]  ? process_timeout+0x40/0x40
[  419.087263]  ? __run_timers+0x7da/0xc70
[  419.091336]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.095842]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.100335]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.104582]  ? lockdep_hardirqs_on+0x296/0x5b0
[  419.109166]  ? trace_hardirqs_on+0xbd/0x310
[  419.113483]  ? kasan_check_read+0x11/0x20
[  419.117627]  ? __run_timers+0x7da/0xc70
[  419.121599]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.126707]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.130956]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.135187]  __run_timers+0x7e5/0xc70
[  419.138998]  ? timer_fixup_init+0x70/0x70
[  419.143232]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  419.148279]  ? zap_class+0x640/0x640
[  419.151995]  ? enqueue_hrtimer+0x1a5/0x560
[  419.156227]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  419.161438]  ? find_held_lock+0x36/0x1c0
[  419.165500]  ? zap_class+0x640/0x640
[  419.169214]  ? pvclock_read_flags+0x160/0x160
[  419.173709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.179250]  ? check_preemption_disabled+0x48/0x280
[  419.184274]  ? __lock_is_held+0xb5/0x140
[  419.188351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.193885]  ? check_preemption_disabled+0x48/0x280
[  419.198902]  run_timer_softirq+0x52/0xb0
[  419.202976]  ? rcu_read_lock_sched_held+0x14f/0x180
[  419.207989]  __do_softirq+0x308/0xb7e
[  419.211788]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  419.216279]  ? lock_downgrade+0x900/0x900
[  419.220441]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  419.225635]  ? pvclock_read_flags+0x160/0x160
[  419.230133]  ? lapic_next_event+0x5a/0x90
[  419.234277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.239814]  ? kvm_clock_read+0x18/0x30
[  419.243805]  ? kvm_sched_clock_read+0x9/0x20
[  419.248213]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.253753]  ? check_preemption_disabled+0x48/0x280
[  419.258776]  irq_exit+0x17f/0x1c0
[  419.262229]  smp_apic_timer_interrupt+0x1cb/0x760
[  419.267067]  ? smp_reschedule_interrupt+0x109/0x650
[  419.272195]  ? smp_call_function_single_interrupt+0x650/0x650
[  419.278076]  ? interrupt_entry+0xb5/0xc0
[  419.282162]  ? trace_hardirqs_off_caller+0xbb/0x310
[  419.287185]  ? trace_hardirqs_off_caller+0xbb/0x310
[  419.292202]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.297044]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.302059]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.307075]  ? task_prio+0x50/0x50
[  419.310630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.316167]  ? check_preemption_disabled+0x48/0x280
[  419.321184]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.326032]  apic_timer_interrupt+0xf/0x20
[  419.330260]  </IRQ>
[  419.332495] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  419.337433] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  419.356463] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  419.364170] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  419.371436] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  419.378705] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  419.385969] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  419.393233] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  419.400564]  skb_clone+0x1bb/0x500
[  419.404114]  ? finish_task_switch+0x2f4/0x910
[  419.408611]  ? skb_split+0x11e0/0x11e0
[  419.412500]  ? preempt_notifier_register+0x200/0x200
[  419.417612]  ? __switch_to_asm+0x34/0x70
[  419.421686]  ? __switch_to_asm+0x34/0x70
[  419.425742]  ? __switch_to_asm+0x40/0x70
[  419.429797]  ? __switch_to_asm+0x34/0x70
[  419.434025]  ? __switch_to_asm+0x40/0x70
[  419.438084]  ? __switch_to_asm+0x34/0x70
[  419.442137]  ? __switch_to_asm+0x40/0x70
[  419.446193]  ? __switch_to_asm+0x34/0x70
[  419.450248]  ? __switch_to_asm+0x34/0x70
[  419.454306]  ? __switch_to_asm+0x40/0x70
[  419.458362]  ? __switch_to_asm+0x34/0x70
[  419.462424]  bpf_clone_redirect+0xb9/0x490
[  419.466655]  ? __schedule+0x8d7/0x21d0
[  419.470550]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  419.475564]  ? __sched_text_start+0x8/0x8
[  419.479707]  ? retint_kernel+0x2d/0x2d
[  419.483603]  ? find_held_lock+0x36/0x1c0
[  419.487690]  ? lock_acquire+0x1ed/0x520
[  419.491660]  ? bpf_test_run+0x3cb/0x780
[  419.495654]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.501185]  ? check_preemption_disabled+0x48/0x280
[  419.506201]  ? kasan_check_read+0x11/0x20
[  419.510447]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.515811]  ? rcu_softirq_qs+0x20/0x20
[  419.519785]  ? preempt_schedule+0x4d/0x60
[  419.523932]  ? ___preempt_schedule+0x16/0x18
[  419.528348]  ? bpf_test_run+0x25d/0x780
[  419.532339]  ? netlink_diag_dump+0x2a0/0x2a0
[  419.536747]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.542283]  ? bpf_test_init.isra.10+0x70/0x100
[  419.546960]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  419.551733]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  419.556574]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  419.562120]  ? fput+0x130/0x1a0
[  419.565396]  ? __bpf_prog_get+0x9b/0x290
[  419.569475]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  419.574337]  ? bpf_prog_test_run+0x130/0x1a0
[  419.578833]  ? __x64_sys_bpf+0x3d8/0x520
[  419.582890]  ? bpf_prog_get+0x20/0x20
[  419.586710]  ? do_syscall_64+0x1b9/0x820
[  419.590765]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  419.596124]  ? syscall_return_slowpath+0x5e0/0x5e0
[  419.601050]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.605913]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.610928]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  419.615965]  ? prepare_exit_to_usermode+0x291/0x3b0
[  419.621077]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.625944]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  419.631321] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  419.631396] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  419.638332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  419.638337] Call Trace:
[  419.638342]  <IRQ>
[  419.638359]  dump_stack+0x244/0x39d
[  419.638378]  ? dump_stack_print_info.cold.1+0x20/0x20
[  419.644895] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  419.654197]  warn_alloc.cold.116+0xb7/0x1bd
[  419.656750] syz-executor2 cpuset=syz2 mems_allowed=0
[  419.658893]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  419.692394]  ? lock_downgrade+0x900/0x900
[  419.696557]  ? trace_hardirqs_off+0xb8/0x310
[  419.701053]  ? trace_hardirqs_off+0xb8/0x310
[  419.705462]  __alloc_pages_slowpath+0x26e8/0x2e10
[  419.710541]  ? warn_alloc+0x120/0x120
[  419.714348]  ? print_usage_bug+0xc0/0xc0
[  419.718404]  ? warn_alloc+0x120/0x120
[  419.722205]  ? warn_alloc+0x120/0x120
[  419.726010]  ? print_usage_bug+0xc0/0xc0
[  419.730155]  ? kvm_clock_read+0x18/0x30
[  419.734130]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  419.739147]  ? print_usage_bug+0xc0/0xc0
[  419.743210]  ? __lock_acquire+0x62f/0x4c20
[  419.747446]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.752979]  ? should_fail+0x22d/0xd01
[  419.756867]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.761966]  ? __lock_acquire+0x62f/0x4c20
[  419.766199]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.771299]  ? __lock_acquire+0x62f/0x4c20
[  419.775527]  ? should_fail+0x22d/0xd01
[  419.779423]  ? mark_held_locks+0x130/0x130
[  419.783662]  ? mark_held_locks+0x130/0x130
[  419.787901]  ? zap_class+0x640/0x640
[  419.791716]  ? print_usage_bug+0xc0/0xc0
[  419.795781]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.801318]  ? check_preemption_disabled+0x48/0x280
[  419.806338]  ? __lock_is_held+0xb5/0x140
[  419.810404]  __alloc_pages_nodemask+0xa80/0xde0
[  419.815073]  ? zap_class+0x640/0x640
[  419.818789]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  419.823818]  ? find_held_lock+0x36/0x1c0
[  419.827897]  ? ____cache_alloc_node+0x1c7/0x1e0
[  419.832663]  ? lock_downgrade+0x900/0x900
[  419.836816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.842358]  cache_grow_begin+0xa5/0x8c0
[  419.846413]  ? do_raw_spin_unlock+0xa7/0x330
[  419.850823]  fallback_alloc+0x204/0x2e0
[  419.854801]  ____cache_alloc_node+0x1c7/0x1e0
[  419.859298]  kmem_cache_alloc_node+0xe3/0x730
[  419.863795]  ? ipv6_get_ifaddr+0x42e/0x620
[  419.868040]  __alloc_skb+0x119/0x770
[  419.871750]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.877027]  ? netdev_alloc_frag+0x1f0/0x1f0
[  419.881432]  ? lock_downgrade+0x900/0x900
[  419.885585]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.891120]  ? refcount_sub_and_test_checked+0x203/0x310
[  419.896571]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  419.902016]  ? addrconf_rs_timer+0x690/0x690
[  419.906436]  ndisc_alloc_skb+0x144/0x340
[  419.910517]  ndisc_send_rs+0x331/0x6e0
[  419.914432]  addrconf_rs_timer+0x314/0x690
[  419.918675]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.922920]  call_timer_fn+0x272/0x920
[  419.926816]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.931046]  ? process_timeout+0x40/0x40
[  419.935113]  ? mark_held_locks+0xc7/0x130
[  419.939256]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.943748]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.948240]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.952470]  ? lockdep_hardirqs_on+0x296/0x5b0
[  419.957075]  ? trace_hardirqs_on+0xbd/0x310
[  419.961390]  ? kasan_check_read+0x11/0x20
[  419.965539]  ? __run_timers+0x7da/0xc70
[  419.969544]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.974656]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.978888]  __run_timers+0x7e5/0xc70
[  419.982697]  ? timer_fixup_init+0x70/0x70
[  419.986844]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  419.991861]  ? zap_class+0x640/0x640
[  419.995579]  ? print_usage_bug+0xc0/0xc0
[  419.999641]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  420.004833]  ? find_held_lock+0x36/0x1c0
[  420.008899]  ? zap_class+0x640/0x640
[  420.012614]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.018147]  ? check_preemption_disabled+0x48/0x280
[  420.023169]  ? __lock_is_held+0xb5/0x140
[  420.027230]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.032765]  ? check_preemption_disabled+0x48/0x280
[  420.037795]  run_timer_softirq+0x52/0xb0
[  420.041862]  ? rcu_read_lock_sched_held+0x14f/0x180
[  420.046874]  __do_softirq+0x308/0xb7e
[  420.050675]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  420.055164]  ? lock_downgrade+0x900/0x900
[  420.059312]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  420.064417]  ? pvclock_read_flags+0x160/0x160
[  420.068908]  ? lapic_next_event+0x5a/0x90
[  420.073057]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.078595]  ? kvm_clock_read+0x18/0x30
[  420.082560]  ? kvm_sched_clock_read+0x9/0x20
[  420.086970]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.092505]  ? check_preemption_disabled+0x48/0x280
[  420.097547]  irq_exit+0x17f/0x1c0
[  420.101099]  smp_apic_timer_interrupt+0x1cb/0x760
[  420.105954]  ? smp_call_function_single_interrupt+0x650/0x650
[  420.111834]  ? interrupt_entry+0xb5/0xc0
[  420.115893]  ? trace_hardirqs_off_caller+0xbb/0x310
[  420.120907]  ? trace_hardirqs_off_caller+0xbb/0x310
[  420.125922]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.130760]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.135773]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.140805]  ? task_prio+0x50/0x50
[  420.144355]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.149904]  ? check_preemption_disabled+0x48/0x280
[  420.154920]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.159773]  apic_timer_interrupt+0xf/0x20
[  420.163999]  </IRQ>
[  420.166267] RIP: 0010:dump_stack+0x358/0x39d
[  420.170674] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  420.189567] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  420.197277] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  420.204541] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  420.211804] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  420.219066] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  420.226345] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  420.233623]  ? dump_stack+0x34f/0x39d
[  420.237428]  ? dump_stack_print_info.cold.1+0x20/0x20
[  420.242620]  ? mark_held_locks+0x130/0x130
[  420.246852]  ? mark_held_locks+0x130/0x130
[  420.251103]  dump_header+0x27b/0xf72
[  420.254880]  ? pagefault_out_of_memory+0x197/0x197
[  420.259814]  ? __lock_acquire+0x62f/0x4c20
[  420.264060]  ? percpu_ref_get_many+0x240/0x240
[  420.268645]  ? print_usage_bug+0xc0/0xc0
[  420.272714]  ? zap_class+0x640/0x640
[  420.276425]  ? print_usage_bug+0xc0/0xc0
[  420.280501]  ? print_usage_bug+0xc0/0xc0
[  420.284567]  ? zap_class+0x640/0x640
[  420.288293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.293864]  ? find_held_lock+0x36/0x1c0
[  420.297936]  ? mark_held_locks+0xc7/0x130
[  420.302095]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  420.307194]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  420.312297]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  420.316876]  ? trace_hardirqs_on+0xbd/0x310
[  420.321367]  ? kasan_check_read+0x11/0x20
[  420.325514]  ? ___ratelimit+0x3b4/0x672
[  420.329490]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.334721]  ? trace_hardirqs_on+0x310/0x310
[  420.339138]  ? lock_downgrade+0x900/0x900
[  420.343284]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  420.348385]  ? ___ratelimit+0x3b9/0x672
[  420.352360]  ? idr_get_free+0xf70/0xf70
[  420.356329]  ? find_held_lock+0x36/0x1c0
[  420.360487]  oom_kill_process.cold.27+0x10/0x903
[  420.365242]  ? zap_class+0x640/0x640
[  420.368953]  ? check_preemption_disabled+0x48/0x280
[  420.373974]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.378900]  ? kasan_check_read+0x11/0x20
[  420.383041]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.388313]  ? oom_evaluate_task+0x540/0x540
[  420.392748]  ? find_held_lock+0x36/0x1c0
[  420.396812]  ? out_of_memory+0x974/0x1430
[  420.400979]  ? lock_downgrade+0x900/0x900
[  420.405124]  ? check_preemption_disabled+0x48/0x280
[  420.410140]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.415065]  ? kasan_check_read+0x11/0x20
[  420.419209]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.424482]  ? rcu_softirq_qs+0x20/0x20
[  420.428466]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.434089]  ? oom_evaluate_task+0x302/0x540
[  420.438513]  out_of_memory+0xa84/0x1430
[  420.442495]  ? oom_killer_disable+0x3a0/0x3a0
[  420.446991]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  420.451919]  ? __ww_mutex_check_waiters+0x160/0x160
[  420.456945]  __alloc_pages_slowpath+0x2354/0x2e10
[  420.461811]  ? warn_alloc+0x120/0x120
[  420.465615]  ? mark_held_locks+0x130/0x130
[  420.469850]  ? find_get_entry+0xaae/0x1120
[  420.474088]  ? filemap_map_pages+0x1a20/0x1a20
[  420.478689]  ? zap_class+0x640/0x640
[  420.482403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.487942]  ? check_preemption_disabled+0x48/0x280
[  420.492955]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.498493]  ? should_fail+0x22d/0xd01
[  420.502379]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.507489]  ? zap_class+0x640/0x640
[  420.511222]  ? __lock_is_held+0xb5/0x140
[  420.515284]  ? mark_held_locks+0x130/0x130
[  420.519516]  ? lock_release+0xa00/0xa00
[  420.523493]  ? perf_trace_sched_process_exec+0x860/0x860
[  420.528953]  ? xa_load+0x2ba/0x460
[  420.532512]  ? lock_downgrade+0x900/0x900
[  420.536726]  ? __might_sleep+0x95/0x190
[  420.540720]  __alloc_pages_nodemask+0xa80/0xde0
[  420.545391]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  420.550405]  ? __page_cache_alloc+0x191/0x5c0
[  420.554906]  ? xa_load+0x2e1/0x460
[  420.558448]  ? xa_clear_mark+0x40/0x40
[  420.562334]  ? zap_class+0x640/0x640
[  420.566049]  ? zap_class+0x640/0x640
[  420.569762]  ? zap_class+0x640/0x640
[  420.573487]  ? __do_page_cache_readahead+0x663/0x810
[  420.578592]  ? find_held_lock+0x36/0x1c0
[  420.582658]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  420.588200]  alloc_pages_current+0x173/0x350
[  420.592615]  __page_cache_alloc+0x38c/0x5c0
[  420.596950]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.601875]  ? kasan_check_read+0x11/0x20
[  420.606023]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.611297]  ? generic_perform_write+0x6a0/0x6a0
[  420.616049]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.621671]  ? check_preemption_disabled+0x48/0x280
[  420.626695]  filemap_fault+0x1595/0x25f0
[  420.630766]  ? __lock_page_or_retry+0xa00/0xa00
[  420.635445]  ? mark_held_locks+0x130/0x130
[  420.639710]  ? filemap_map_pages+0xd6b/0x1a20
[  420.644205]  ? lock_downgrade+0x900/0x900
[  420.648350]  ? check_preemption_disabled+0x48/0x280
[  420.653377]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.658300]  ? kasan_check_read+0x11/0x20
[  420.662479]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.667772]  ? rcu_softirq_qs+0x20/0x20
[  420.671772]  ? filemap_map_pages+0xd92/0x1a20
[  420.676279]  ? find_get_entries_tag+0x1400/0x1400
[  420.681115]  ? find_held_lock+0x36/0x1c0
[  420.685214]  ? lock_acquire+0x1ed/0x520
[  420.689185]  ? ext4_filemap_fault+0x7a/0xad
[  420.693512]  ? lock_release+0xa00/0xa00
[  420.697494]  ? perf_trace_sched_process_exec+0x860/0x860
[  420.703030]  ? print_usage_bug+0xc0/0xc0
[  420.707103]  ? down_read+0x8d/0x120
[  420.710723]  ? ext4_filemap_fault+0x7a/0xad
[  420.715042]  ? __down_interruptible+0x700/0x700
[  420.719713]  ? find_held_lock+0x36/0x1c0
[  420.723779]  ext4_filemap_fault+0x82/0xad
[  420.727923]  __do_fault+0x100/0x6b0
[  420.731545]  ? lock_downgrade+0x900/0x900
[  420.735689]  ? pmd_devmap_trans_unstable+0x220/0x220
[  420.740793]  ? kasan_check_read+0x11/0x20
[  420.745048]  ? do_raw_spin_unlock+0xa7/0x330
[  420.749453]  ? do_raw_spin_trylock+0x270/0x270
[  420.754163]  __handle_mm_fault+0x3ea0/0x5be0
[  420.758565]  ? perf_trace_lock+0x7a0/0x7a0
[  420.762825]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  420.767668]  ? __switch_to_asm+0x34/0x70
[  420.771824]  ? __switch_to_asm+0x34/0x70
[  420.775894]  ? zap_class+0x640/0x640
[  420.779602]  ? zap_class+0x640/0x640
[  420.783352]  ? __x64_sys_futex+0x53e/0x6a0
[  420.787585]  ? find_held_lock+0x36/0x1c0
[  420.791671]  ? handle_mm_fault+0x42a/0xc70
[  420.795904]  ? lock_downgrade+0x900/0x900
[  420.800048]  ? check_preemption_disabled+0x48/0x280
[  420.805067]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.810004]  ? kasan_check_read+0x11/0x20
[  420.814162]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.819441]  ? rcu_softirq_qs+0x20/0x20
[  420.823423]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.828525]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.834058]  ? check_preemption_disabled+0x48/0x280
[  420.839078]  handle_mm_fault+0x54f/0xc70
[  420.843140]  ? __handle_mm_fault+0x5be0/0x5be0
[  420.847723]  ? find_vma+0x34/0x190
[  420.851268]  __do_page_fault+0x5e8/0xe60
[  420.855327]  ? trace_hardirqs_off+0xb8/0x310
[  420.859742]  do_page_fault+0xf2/0x7e0
[  420.863540]  ? vmalloc_sync_all+0x30/0x30
[  420.867686]  ? error_entry+0x70/0xd0
[  420.871399]  ? trace_hardirqs_off_caller+0xbb/0x310
[  420.876424]  ? trace_hardirqs_on_caller+0xc0/0x310
[  420.881364]  ? syscall_return_slowpath+0x5e0/0x5e0
[  420.886292]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.891663]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.896690]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  420.902140]  ? prepare_exit_to_usermode+0x291/0x3b0
[  420.907156]  ? page_fault+0x8/0x30
[  420.910700]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.915544]  ? page_fault+0x8/0x30
[  420.919083]  page_fault+0x1e/0x30
[  420.922540] RIP: 0033:0x404068
[  420.925751] Code: Bad RIP value.
[  420.929108] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  420.934472] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  420.941748] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  420.949012] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  420.956274] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  420.963541] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  420.970827] warn_alloc_show_mem: 1 callbacks suppressed
[  420.970849] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  420.970851] Mem-Info:
[  420.970880] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  420.970880]  active_file:13 inactive_file:13 isolated_file:0
[  420.970880]  unevictable:0 dirty:0 writeback:0 unstable:0
[  420.970880]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  420.970880]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  420.970880]  free:13747 free_pcp:348 free_cma:0
[  420.976209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  420.976216] Call Trace:
[  420.983587] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  420.985993]  <IRQ>
[  421.019022] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  421.028367]  dump_stack+0x244/0x39d
[  421.030921] lowmem_reserve[]: 0 2818 6321 6321
[  421.059472]  ? dump_stack_print_info.cold.1+0x20/0x20
[  421.061595] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  421.087717]  warn_alloc.cold.116+0xb7/0x1bd
[  421.091309] lowmem_reserve[]: 0 0 3503 3503
[  421.095880]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  421.101040] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  421.128672]  ? lock_downgrade+0x900/0x900
[  421.133049] lowmem_reserve[]: 0 0 0 0
[  421.137378]  ? trace_hardirqs_off+0xb8/0x310
[  421.142207] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  421.171353]  ? trace_hardirqs_off+0xb8/0x310
[  421.175495] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  421.179293]  __alloc_pages_slowpath+0x26e8/0x2e10
[  421.183668] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  421.197209]  ? warn_alloc+0x120/0x120
[  421.201576] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  421.216472]  ? print_usage_bug+0xc0/0xc0
[  421.221290] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  421.236557]  ? warn_alloc+0x120/0x120
[  421.240335] 4484 total pagecache pages
[  421.249159]  ? warn_alloc+0x120/0x120
[  421.253197] 0 pages in swap cache
[  421.261761]  ? print_usage_bug+0xc0/0xc0
[  421.265538] Swap cache stats: add 0, delete 0, find 0/0
[  421.269412]  ? print_usage_bug+0xc0/0xc0
[  421.273188] Free swap  = 0kB
[  421.276628]  ? __lock_acquire+0x62f/0x4c20
[  421.280654] Total swap = 0kB
[  421.280661] 1965979 pages RAM
[  421.286014]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.290125] 0 pages HighMem/MovableOnly
[  421.290133] 342854 pages reserved
[  421.293144]  ? should_fail+0x22d/0xd01
[  421.297365] 0 pages cma reserved
[  421.300387]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  421.303541] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  421.309084]  ? __lock_acquire+0x62f/0x4c20
[  421.309101]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  421.309116]  ? __lock_acquire+0x62f/0x4c20
[  421.313119] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  421.316507]  ? should_fail+0x22d/0xd01
[  421.320363] syz-fuzzer cpuset=/ mems_allowed=0
[  421.323723]  ? find_held_lock+0x36/0x1c0
[  421.371548]  ? mark_held_locks+0x130/0x130
[  421.375785]  ? mark_held_locks+0x130/0x130
[  421.380103]  ? zap_class+0x640/0x640
[  421.383812]  ? zap_class+0x640/0x640
[  421.387614]  ? print_usage_bug+0xc0/0xc0
[  421.391673]  ? do_raw_spin_unlock+0xa7/0x330
[  421.396078]  ? zap_class+0x640/0x640
[  421.399793]  ? print_usage_bug+0xc0/0xc0
[  421.403850]  ? wq_watchdog_touch+0x9c/0xfe
[  421.408085]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.413621]  ? check_preemption_disabled+0x48/0x280
[  421.418642]  ? __lock_is_held+0xb5/0x140
[  421.422710]  __alloc_pages_nodemask+0xa80/0xde0
[  421.427462]  ? zap_class+0x640/0x640
[  421.431187]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  421.436209]  ? find_held_lock+0x36/0x1c0
[  421.440274]  ? ____cache_alloc_node+0x1c7/0x1e0
[  421.444944]  ? lock_downgrade+0x900/0x900
[  421.449099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.454636]  cache_grow_begin+0xa5/0x8c0
[  421.458696]  ? do_raw_spin_unlock+0xa7/0x330
[  421.463109]  fallback_alloc+0x204/0x2e0
[  421.467111]  ____cache_alloc_node+0x1c7/0x1e0
[  421.471607]  kmem_cache_alloc_node+0xe3/0x730
[  421.476098]  ? ipv6_get_ifaddr+0x42e/0x620
[  421.480339]  __alloc_skb+0x119/0x770
[  421.484081]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.489361]  ? netdev_alloc_frag+0x1f0/0x1f0
[  421.493764]  ? lock_downgrade+0x900/0x900
[  421.497956]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.503581]  ? refcount_sub_and_test_checked+0x203/0x310
[  421.509030]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  421.514491]  ? addrconf_rs_timer+0x690/0x690
[  421.518946]  ndisc_alloc_skb+0x144/0x340
[  421.523007]  ndisc_send_rs+0x331/0x6e0
[  421.526899]  addrconf_rs_timer+0x314/0x690
[  421.531138]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.535402]  call_timer_fn+0x272/0x920
[  421.539292]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.543543]  ? process_timeout+0x40/0x40
[  421.547632]  ? __run_timers+0x7da/0xc70
[  421.551695]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.556183]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.560675]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.565031]  ? lockdep_hardirqs_on+0x296/0x5b0
[  421.569611]  ? trace_hardirqs_on+0xbd/0x310
[  421.573941]  ? kasan_check_read+0x11/0x20
[  421.578091]  ? __run_timers+0x7da/0xc70
[  421.582063]  ? trace_hardirqs_off_caller+0x310/0x310
[  421.587174]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.591408]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.595636]  __run_timers+0x7e5/0xc70
[  421.599444]  ? timer_fixup_init+0x70/0x70
[  421.603591]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  421.608615]  ? zap_class+0x640/0x640
[  421.612328]  ? enqueue_hrtimer+0x1a5/0x560
[  421.616573]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  421.621777]  ? find_held_lock+0x36/0x1c0
[  421.625861]  ? zap_class+0x640/0x640
[  421.629577]  ? pvclock_read_flags+0x160/0x160
[  421.634073]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.639609]  ? check_preemption_disabled+0x48/0x280
[  421.644634]  ? __lock_is_held+0xb5/0x140
[  421.648697]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.654231]  ? check_preemption_disabled+0x48/0x280
[  421.659246]  run_timer_softirq+0x52/0xb0
[  421.663317]  ? rcu_read_lock_sched_held+0x14f/0x180
[  421.668345]  __do_softirq+0x308/0xb7e
[  421.672143]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  421.676631]  ? lock_downgrade+0x900/0x900
[  421.680781]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  421.685887]  ? pvclock_read_flags+0x160/0x160
[  421.690385]  ? lapic_next_event+0x5a/0x90
[  421.694532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.700070]  ? kvm_clock_read+0x18/0x30
[  421.704055]  ? kvm_sched_clock_read+0x9/0x20
[  421.708462]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.713997]  ? check_preemption_disabled+0x48/0x280
[  421.719024]  irq_exit+0x17f/0x1c0
[  421.722478]  smp_apic_timer_interrupt+0x1cb/0x760
[  421.727317]  ? smp_reschedule_interrupt+0x109/0x650
[  421.732345]  ? smp_call_function_single_interrupt+0x650/0x650
[  421.738225]  ? interrupt_entry+0xb5/0xc0
[  421.742284]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.747295]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.752323]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.757168]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.762181]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.767207]  ? task_prio+0x50/0x50
[  421.770745]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.776368]  ? check_preemption_disabled+0x48/0x280
[  421.781473]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.786321]  apic_timer_interrupt+0xf/0x20
[  421.790557]  </IRQ>
[  421.792792] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  421.797718] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  421.816614] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  421.824315] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  421.831584] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  421.838848] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  421.846117] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  421.853380] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  421.860691]  skb_clone+0x1bb/0x500
[  421.864229]  ? finish_task_switch+0x2f4/0x910
[  421.868739]  ? skb_split+0x11e0/0x11e0
[  421.872625]  ? preempt_notifier_register+0x200/0x200
[  421.877725]  ? __switch_to_asm+0x34/0x70
[  421.881794]  ? __switch_to_asm+0x34/0x70
[  421.885851]  ? __switch_to_asm+0x40/0x70
[  421.889911]  ? __switch_to_asm+0x34/0x70
[  421.893973]  ? __switch_to_asm+0x40/0x70
[  421.898030]  ? __switch_to_asm+0x34/0x70
[  421.902086]  ? __switch_to_asm+0x40/0x70
[  421.906137]  ? __switch_to_asm+0x34/0x70
[  421.910194]  ? __switch_to_asm+0x34/0x70
[  421.914247]  ? __switch_to_asm+0x40/0x70
[  421.918302]  ? __switch_to_asm+0x34/0x70
[  421.922369]  bpf_clone_redirect+0xb9/0x490
[  421.926604]  ? __schedule+0x8d7/0x21d0
[  421.930497]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  421.935511]  ? __sched_text_start+0x8/0x8
[  421.939655]  ? retint_kernel+0x2d/0x2d
[  421.943571]  ? find_held_lock+0x36/0x1c0
[  421.947636]  ? lock_acquire+0x1ed/0x520
[  421.951625]  ? bpf_test_run+0x3cb/0x780
[  421.955601]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.961135]  ? check_preemption_disabled+0x48/0x280
[  421.966157]  ? kasan_check_read+0x11/0x20
[  421.970308]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.975585]  ? rcu_softirq_qs+0x20/0x20
[  421.979561]  ? preempt_schedule+0x4d/0x60
[  421.983708]  ? ___preempt_schedule+0x16/0x18
[  421.988117]  ? bpf_test_run+0x25d/0x780
[  421.992101]  ? netlink_diag_dump+0x2a0/0x2a0
[  421.996514]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.002047]  ? bpf_test_init.isra.10+0x70/0x100
[  422.006718]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  422.011480]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  422.016329]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  422.021885]  ? fput+0x130/0x1a0
[  422.025160]  ? __bpf_prog_get+0x9b/0x290
[  422.029220]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  422.034059]  ? bpf_prog_test_run+0x130/0x1a0
[  422.038472]  ? __x64_sys_bpf+0x3d8/0x520
[  422.042532]  ? bpf_prog_get+0x20/0x20
[  422.046350]  ? do_syscall_64+0x1b9/0x820
[  422.050409]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  422.055780]  ? syscall_return_slowpath+0x5e0/0x5e0
[  422.060705]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.065557]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.070570]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  422.075584]  ? prepare_exit_to_usermode+0x291/0x3b0
[  422.080603]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.085449]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  422.090824] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  422.090891] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  422.097834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  422.097838] Call Trace:
[  422.097843]  <IRQ>
[  422.097859]  dump_stack+0x244/0x39d
[  422.097881]  ? dump_stack_print_info.cold.1+0x20/0x20
[  422.104536] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  422.113816]  warn_alloc.cold.116+0xb7/0x1bd
[  422.116360] syz-executor2 cpuset=syz2 mems_allowed=0
[  422.118522]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  422.152127]  ? lock_downgrade+0x900/0x900
[  422.156280]  ? trace_hardirqs_off+0xb8/0x310
[  422.160715]  ? trace_hardirqs_off+0xb8/0x310
[  422.165132]  __alloc_pages_slowpath+0x26e8/0x2e10
[  422.170002]  ? warn_alloc+0x120/0x120
[  422.173807]  ? print_usage_bug+0xc0/0xc0
[  422.177870]  ? warn_alloc+0x120/0x120
[  422.181674]  ? warn_alloc+0x120/0x120
[  422.185484]  ? print_usage_bug+0xc0/0xc0
[  422.189546]  ? print_usage_bug+0xc0/0xc0
[  422.193611]  ? __lock_acquire+0x62f/0x4c20
[  422.197849]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.203407]  ? should_fail+0x22d/0xd01
[  422.207305]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.212407]  ? __lock_acquire+0x62f/0x4c20
[  422.216647]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.221768]  ? __lock_acquire+0x62f/0x4c20
[  422.225997]  ? should_fail+0x22d/0xd01
[  422.229884]  ? find_held_lock+0x36/0x1c0
[  422.233951]  ? mark_held_locks+0x130/0x130
[  422.238186]  ? mark_held_locks+0x130/0x130
[  422.242420]  ? zap_class+0x640/0x640
[  422.246130]  ? zap_class+0x640/0x640
[  422.249841]  ? print_usage_bug+0xc0/0xc0
[  422.253898]  ? do_raw_spin_unlock+0xa7/0x330
[  422.258312]  ? zap_class+0x640/0x640
[  422.262024]  ? print_usage_bug+0xc0/0xc0
[  422.266085]  ? wq_watchdog_touch+0x9c/0xfe
[  422.270408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.275966]  ? check_preemption_disabled+0x48/0x280
[  422.280988]  ? __lock_is_held+0xb5/0x140
[  422.285050]  __alloc_pages_nodemask+0xa80/0xde0
[  422.289721]  ? zap_class+0x640/0x640
[  422.293456]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  422.298480]  ? find_held_lock+0x36/0x1c0
[  422.302551]  ? ____cache_alloc_node+0x1c7/0x1e0
[  422.307324]  ? lock_downgrade+0x900/0x900
[  422.311482]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.317021]  cache_grow_begin+0xa5/0x8c0
[  422.321076]  ? do_raw_spin_unlock+0xa7/0x330
[  422.325488]  fallback_alloc+0x204/0x2e0
[  422.329471]  ____cache_alloc_node+0x1c7/0x1e0
[  422.333970]  kmem_cache_alloc_node+0xe3/0x730
[  422.338469]  ? ipv6_get_ifaddr+0x42e/0x620
[  422.342713]  __alloc_skb+0x119/0x770
[  422.346425]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.351733]  ? netdev_alloc_frag+0x1f0/0x1f0
[  422.356138]  ? lock_downgrade+0x900/0x900
[  422.360299]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.365847]  ? refcount_sub_and_test_checked+0x203/0x310
[  422.371320]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  422.376782]  ? addrconf_rs_timer+0x690/0x690
[  422.381201]  ndisc_alloc_skb+0x144/0x340
[  422.385267]  ndisc_send_rs+0x331/0x6e0
[  422.389163]  addrconf_rs_timer+0x314/0x690
[  422.393399]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.397640]  call_timer_fn+0x272/0x920
[  422.401526]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.405758]  ? process_timeout+0x40/0x40
[  422.409852]  ? mark_held_locks+0xc7/0x130
[  422.414001]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.418490]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.422980]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.427209]  ? lockdep_hardirqs_on+0x296/0x5b0
[  422.431809]  ? trace_hardirqs_on+0xbd/0x310
[  422.436128]  ? kasan_check_read+0x11/0x20
[  422.440269]  ? __run_timers+0x7da/0xc70
[  422.444260]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.449366]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.453601]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.457829]  __run_timers+0x7e5/0xc70
[  422.461632]  ? timer_fixup_init+0x70/0x70
[  422.465776]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  422.470876]  ? zap_class+0x640/0x640
[  422.474591]  ? print_usage_bug+0xc0/0xc0
[  422.478656]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  422.483869]  ? find_held_lock+0x36/0x1c0
[  422.487928]  ? zap_class+0x640/0x640
[  422.491643]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.497195]  ? check_preemption_disabled+0x48/0x280
[  422.502215]  ? __lock_is_held+0xb5/0x140
[  422.506280]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.511832]  ? check_preemption_disabled+0x48/0x280
[  422.516848]  run_timer_softirq+0x52/0xb0
[  422.520905]  ? rcu_read_lock_sched_held+0x14f/0x180
[  422.526003]  __do_softirq+0x308/0xb7e
[  422.529802]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  422.534309]  ? lock_downgrade+0x900/0x900
[  422.538461]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  422.543594]  ? pvclock_read_flags+0x160/0x160
[  422.548090]  ? lapic_next_event+0x5a/0x90
[  422.552340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.557890]  ? kvm_clock_read+0x18/0x30
[  422.561861]  ? kvm_sched_clock_read+0x9/0x20
[  422.566263]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.571815]  ? check_preemption_disabled+0x48/0x280
[  422.576834]  irq_exit+0x17f/0x1c0
[  422.580299]  smp_apic_timer_interrupt+0x1cb/0x760
[  422.585164]  ? smp_call_function_single_interrupt+0x650/0x650
[  422.591147]  ? interrupt_entry+0xb5/0xc0
[  422.595208]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.600224]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.605238]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.610083]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.615094]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.620104]  ? task_prio+0x50/0x50
[  422.623640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.629206]  ? check_preemption_disabled+0x48/0x280
[  422.634222]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.639071]  apic_timer_interrupt+0xf/0x20
[  422.643296]  </IRQ>
[  422.645536] RIP: 0010:dump_stack+0x358/0x39d
[  422.649945] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  422.668965] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  422.676669] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  422.683936] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  422.691288] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  422.698554] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  422.705817] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  422.713096]  ? dump_stack+0x34f/0x39d
[  422.716908]  ? dump_stack_print_info.cold.1+0x20/0x20
[  422.722204]  ? mark_held_locks+0x130/0x130
[  422.726440]  ? mark_held_locks+0x130/0x130
[  422.730701]  dump_header+0x27b/0xf72
[  422.734449]  ? pagefault_out_of_memory+0x197/0x197
[  422.739385]  ? __lock_acquire+0x62f/0x4c20
[  422.743615]  ? percpu_ref_get_many+0x240/0x240
[  422.748206]  ? print_usage_bug+0xc0/0xc0
[  422.752276]  ? zap_class+0x640/0x640
[  422.755993]  ? print_usage_bug+0xc0/0xc0
[  422.760048]  ? print_usage_bug+0xc0/0xc0
[  422.764106]  ? zap_class+0x640/0x640
[  422.767822]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.773359]  ? find_held_lock+0x36/0x1c0
[  422.777425]  ? mark_held_locks+0xc7/0x130
[  422.781570]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  422.786669]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  422.791780]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  422.796359]  ? trace_hardirqs_on+0xbd/0x310
[  422.800676]  ? kasan_check_read+0x11/0x20
[  422.804821]  ? ___ratelimit+0x3b4/0x672
[  422.808793]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.813895]  ? trace_hardirqs_on+0x310/0x310
[  422.818308]  ? lock_downgrade+0x900/0x900
[  422.822462]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  422.827565]  ? ___ratelimit+0x3b9/0x672
[  422.831538]  ? idr_get_free+0xf70/0xf70
[  422.835513]  ? find_held_lock+0x36/0x1c0
[  422.839582]  oom_kill_process.cold.27+0x10/0x903
[  422.844335]  ? zap_class+0x640/0x640
[  422.848048]  ? check_preemption_disabled+0x48/0x280
[  422.853066]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  422.858002]  ? kasan_check_read+0x11/0x20
[  422.862147]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.867422]  ? oom_evaluate_task+0x540/0x540
[  422.871832]  ? find_held_lock+0x36/0x1c0
[  422.875900]  ? out_of_memory+0x974/0x1430
[  422.880048]  ? lock_downgrade+0x900/0x900
[  422.884196]  ? check_preemption_disabled+0x48/0x280
[  422.889307]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  422.894713]  ? kasan_check_read+0x11/0x20
[  422.898861]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.904138]  ? rcu_softirq_qs+0x20/0x20
[  422.908116]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.913661]  ? oom_evaluate_task+0x302/0x540
[  422.918069]  out_of_memory+0xa84/0x1430
[  422.922049]  ? oom_killer_disable+0x3a0/0x3a0
[  422.926542]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  422.931476]  ? __ww_mutex_check_waiters+0x160/0x160
[  422.936499]  __alloc_pages_slowpath+0x2354/0x2e10
[  422.941365]  ? warn_alloc+0x120/0x120
[  422.945164]  ? mark_held_locks+0x130/0x130
[  422.949425]  ? find_get_entry+0xaae/0x1120
[  422.953678]  ? filemap_map_pages+0x1a20/0x1a20
[  422.958266]  ? zap_class+0x640/0x640
[  422.961983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.967521]  ? check_preemption_disabled+0x48/0x280
[  422.972552]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.978083]  ? should_fail+0x22d/0xd01
[  422.981974]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.987165]  ? zap_class+0x640/0x640
[  422.990899]  ? __lock_is_held+0xb5/0x140
[  422.995051]  ? mark_held_locks+0x130/0x130
[  422.999290]  ? lock_release+0xa00/0xa00
[  423.003268]  ? perf_trace_sched_process_exec+0x860/0x860
[  423.008715]  ? xa_load+0x2ba/0x460
[  423.012258]  ? lock_downgrade+0x900/0x900
[  423.016414]  ? __might_sleep+0x95/0x190
[  423.020389]  __alloc_pages_nodemask+0xa80/0xde0
[  423.025062]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  423.030188]  ? __page_cache_alloc+0x191/0x5c0
[  423.034680]  ? xa_load+0x2e1/0x460
[  423.038216]  ? xa_clear_mark+0x40/0x40
[  423.042106]  ? zap_class+0x640/0x640
[  423.045824]  ? zap_class+0x640/0x640
[  423.049535]  ? zap_class+0x640/0x640
[  423.053259]  ? __do_page_cache_readahead+0x663/0x810
[  423.058653]  ? find_held_lock+0x36/0x1c0
[  423.062733]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  423.068273]  alloc_pages_current+0x173/0x350
[  423.072703]  __page_cache_alloc+0x38c/0x5c0
[  423.077048]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.081976]  ? kasan_check_read+0x11/0x20
[  423.086121]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.091497]  ? generic_perform_write+0x6a0/0x6a0
[  423.096254]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.101792]  ? check_preemption_disabled+0x48/0x280
[  423.106811]  filemap_fault+0x1595/0x25f0
[  423.110880]  ? __lock_page_or_retry+0xa00/0xa00
[  423.115545]  ? mark_held_locks+0x130/0x130
[  423.119782]  ? filemap_map_pages+0xd6b/0x1a20
[  423.124282]  ? lock_downgrade+0x900/0x900
[  423.128426]  ? check_preemption_disabled+0x48/0x280
[  423.133442]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.138387]  ? kasan_check_read+0x11/0x20
[  423.142531]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.147802]  ? rcu_softirq_qs+0x20/0x20
[  423.151783]  ? filemap_map_pages+0xd92/0x1a20
[  423.156290]  ? find_get_entries_tag+0x1400/0x1400
[  423.161128]  ? find_held_lock+0x36/0x1c0
[  423.165202]  ? lock_acquire+0x1ed/0x520
[  423.169179]  ? ext4_filemap_fault+0x7a/0xad
[  423.173502]  ? lock_release+0xa00/0xa00
[  423.177470]  ? perf_trace_sched_process_exec+0x860/0x860
[  423.182917]  ? print_usage_bug+0xc0/0xc0
[  423.186989]  ? down_read+0x8d/0x120
[  423.190612]  ? ext4_filemap_fault+0x7a/0xad
[  423.194928]  ? __down_interruptible+0x700/0x700
[  423.199598]  ? find_held_lock+0x36/0x1c0
[  423.203659]  ext4_filemap_fault+0x82/0xad
[  423.207821]  __do_fault+0x100/0x6b0
[  423.211447]  ? lock_downgrade+0x900/0x900
[  423.215618]  ? pmd_devmap_trans_unstable+0x220/0x220
[  423.220741]  ? kasan_check_read+0x11/0x20
[  423.225008]  ? do_raw_spin_unlock+0xa7/0x330
[  423.229409]  ? do_raw_spin_trylock+0x270/0x270
[  423.233997]  __handle_mm_fault+0x3ea0/0x5be0
[  423.238399]  ? perf_trace_lock+0x7a0/0x7a0
[  423.242656]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  423.247502]  ? __switch_to_asm+0x34/0x70
[  423.251568]  ? __switch_to_asm+0x34/0x70
[  423.255641]  ? zap_class+0x640/0x640
[  423.259355]  ? zap_class+0x640/0x640
[  423.263065]  ? __x64_sys_futex+0x53e/0x6a0
[  423.267388]  ? find_held_lock+0x36/0x1c0
[  423.271453]  ? handle_mm_fault+0x42a/0xc70
[  423.275710]  ? lock_downgrade+0x900/0x900
[  423.279856]  ? check_preemption_disabled+0x48/0x280
[  423.284870]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.289795]  ? kasan_check_read+0x11/0x20
[  423.293937]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.299212]  ? rcu_softirq_qs+0x20/0x20
[  423.303182]  ? trace_hardirqs_off_caller+0x310/0x310
[  423.308288]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.313820]  ? check_preemption_disabled+0x48/0x280
[  423.318838]  handle_mm_fault+0x54f/0xc70
[  423.322897]  ? __handle_mm_fault+0x5be0/0x5be0
[  423.327483]  ? find_vma+0x34/0x190
[  423.331023]  __do_page_fault+0x5e8/0xe60
[  423.335079]  ? trace_hardirqs_off+0xb8/0x310
[  423.339496]  do_page_fault+0xf2/0x7e0
[  423.343297]  ? vmalloc_sync_all+0x30/0x30
[  423.347440]  ? error_entry+0x70/0xd0
[  423.351149]  ? trace_hardirqs_off_caller+0xbb/0x310
[  423.356162]  ? trace_hardirqs_on_caller+0xc0/0x310
[  423.361092]  ? syscall_return_slowpath+0x5e0/0x5e0
[  423.366020]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.370859]  ? trace_hardirqs_on_caller+0x310/0x310
[  423.375869]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  423.381321]  ? prepare_exit_to_usermode+0x291/0x3b0
[  423.386334]  ? page_fault+0x8/0x30
[  423.389873]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.394712]  ? page_fault+0x8/0x30
[  423.398340]  page_fault+0x1e/0x30
[  423.401790] RIP: 0033:0x404068
[  423.404989] Code: Bad RIP value.
[  423.408358] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  423.413712] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  423.420991] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  423.428341] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  423.435604] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  423.443040] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  423.450351] warn_alloc_show_mem: 1 callbacks suppressed
[  423.450361] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  423.450362] Mem-Info:
[  423.450392] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  423.450392]  active_file:13 inactive_file:13 isolated_file:0
[  423.450392]  unevictable:0 dirty:0 writeback:0 unstable:0
[  423.450392]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  423.450392]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  423.450392]  free:13747 free_pcp:348 free_cma:0
[  423.455730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  423.455737] Call Trace:
[  423.463098] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  423.465512]  <IRQ>
[  423.498542] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  423.507889]  dump_stack+0x244/0x39d
[  423.510444] lowmem_reserve[]: 0 2818 6321 6321
[  423.538280]  ? dump_stack_print_info.cold.1+0x20/0x20
[  423.540400] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  423.566604]  warn_alloc.cold.116+0xb7/0x1bd
[  423.570198] lowmem_reserve[]: 0 0 3503 3503
[  423.574769]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  423.579938] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  423.607455]  ? lock_downgrade+0x900/0x900
[  423.611782] lowmem_reserve[]: 0 0 0 0
[  423.616094]  ? trace_hardirqs_off+0xb8/0x310
[  423.620902] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  423.650048]  ? trace_hardirqs_off+0xb8/0x310
[  423.654164] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  423.657969]  __alloc_pages_slowpath+0x26e8/0x2e10
[  423.662346] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  423.675883]  ? warn_alloc+0x120/0x120
[  423.680249] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  423.695242]  ? print_usage_bug+0xc0/0xc0
[  423.695257]  ? warn_alloc+0x120/0x120
[  423.700078] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  423.715324]  ? warn_alloc+0x120/0x120
[  423.719193] 4484 total pagecache pages
[  423.728017]  ? print_usage_bug+0xc0/0xc0
[  423.732059] 0 pages in swap cache
[  423.735853]  ? print_usage_bug+0xc0/0xc0
[  423.744402] Swap cache stats: add 0, delete 0, find 0/0
[  423.748196]  ? __lock_acquire+0x62f/0x4c20
[  423.752139] Free swap  = 0kB
[  423.756307]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.759724] Total swap = 0kB
[  423.759733] 1965979 pages RAM
[  423.763786]  ? should_fail+0x22d/0xd01
[  423.769119] 0 pages HighMem/MovableOnly
[  423.773344]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.776328] 342854 pages reserved
[  423.776336] 0 pages cma reserved
[  423.781859]  ? __lock_acquire+0x62f/0x4c20
[  423.784903] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  423.787948]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.787960]  ? __lock_acquire+0x62f/0x4c20
[  423.787975]  ? should_fail+0x22d/0xd01
[  423.791896] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  423.795814]  ? find_held_lock+0x36/0x1c0
[  423.800890] syz-fuzzer cpuset=/ mems_allowed=0
[  423.804339]  ? mark_held_locks+0x130/0x130
[  423.854741]  ? mark_held_locks+0x130/0x130
[  423.858984]  ? zap_class+0x640/0x640
[  423.862692]  ? zap_class+0x640/0x640
[  423.866407]  ? print_usage_bug+0xc0/0xc0
[  423.870464]  ? do_raw_spin_unlock+0xa7/0x330
[  423.874873]  ? zap_class+0x640/0x640
[  423.878582]  ? print_usage_bug+0xc0/0xc0
[  423.882638]  ? wq_watchdog_touch+0x9c/0xfe
[  423.886875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.892412]  ? check_preemption_disabled+0x48/0x280
[  423.897443]  ? __lock_is_held+0xb5/0x140
[  423.901504]  __alloc_pages_nodemask+0xa80/0xde0
[  423.906175]  ? zap_class+0x640/0x640
[  423.909892]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  423.914919]  ? find_held_lock+0x36/0x1c0
[  423.918986]  ? ____cache_alloc_node+0x1c7/0x1e0
[  423.923651]  ? lock_downgrade+0x900/0x900
[  423.927800]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.933335]  cache_grow_begin+0xa5/0x8c0
[  423.937390]  ? do_raw_spin_unlock+0xa7/0x330
[  423.941831]  fallback_alloc+0x204/0x2e0
[  423.945826]  ____cache_alloc_node+0x1c7/0x1e0
[  423.950340]  kmem_cache_alloc_node+0xe3/0x730
[  423.954850]  ? ipv6_get_ifaddr+0x42e/0x620
[  423.959088]  __alloc_skb+0x119/0x770
[  423.962802]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.968076]  ? netdev_alloc_frag+0x1f0/0x1f0
[  423.972487]  ? lock_downgrade+0x900/0x900
[  423.976650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.982210]  ? refcount_sub_and_test_checked+0x203/0x310
[  423.987694]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  423.993156]  ? addrconf_rs_timer+0x690/0x690
[  423.997575]  ndisc_alloc_skb+0x144/0x340
[  424.001634]  ndisc_send_rs+0x331/0x6e0
[  424.005524]  addrconf_rs_timer+0x314/0x690
[  424.009760]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.014000]  call_timer_fn+0x272/0x920
[  424.017881]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.022108]  ? process_timeout+0x40/0x40
[  424.026178]  ? __run_timers+0x7da/0xc70
[  424.030160]  ? _raw_spin_unlock_irq+0x27/0x80
[  424.034651]  ? _raw_spin_unlock_irq+0x27/0x80
[  424.039138]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.043394]  ? lockdep_hardirqs_on+0x296/0x5b0
[  424.047984]  ? trace_hardirqs_on+0xbd/0x310
[  424.052303]  ? kasan_check_read+0x11/0x20
[  424.056633]  ? __run_timers+0x7da/0xc70
[  424.060605]  ? trace_hardirqs_off_caller+0x310/0x310
[  424.065710]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.069958]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.074186]  __run_timers+0x7e5/0xc70
[  424.077993]  ? timer_fixup_init+0x70/0x70
[  424.082165]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  424.087180]  ? zap_class+0x640/0x640
[  424.090902]  ? enqueue_hrtimer+0x1a5/0x560
[  424.095133]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  424.100335]  ? find_held_lock+0x36/0x1c0
[  424.104396]  ? zap_class+0x640/0x640
[  424.108195]  ? pvclock_read_flags+0x160/0x160
[  424.112691]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.118228]  ? check_preemption_disabled+0x48/0x280
[  424.123342]  ? __lock_is_held+0xb5/0x140
[  424.127402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.132933]  ? check_preemption_disabled+0x48/0x280
[  424.137954]  run_timer_softirq+0x52/0xb0
[  424.142011]  ? rcu_read_lock_sched_held+0x14f/0x180
[  424.147114]  __do_softirq+0x308/0xb7e
[  424.150926]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  424.155416]  ? lock_downgrade+0x900/0x900
[  424.159567]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  424.164678]  ? pvclock_read_flags+0x160/0x160
[  424.169174]  ? lapic_next_event+0x5a/0x90
[  424.173323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.178860]  ? kvm_clock_read+0x18/0x30
[  424.183014]  ? kvm_sched_clock_read+0x9/0x20
[  424.187417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.193044]  ? check_preemption_disabled+0x48/0x280
[  424.198070]  irq_exit+0x17f/0x1c0
[  424.201517]  smp_apic_timer_interrupt+0x1cb/0x760
[  424.206353]  ? smp_reschedule_interrupt+0x109/0x650
[  424.211368]  ? smp_call_function_single_interrupt+0x650/0x650
[  424.217246]  ? interrupt_entry+0xb5/0xc0
[  424.221302]  ? trace_hardirqs_off_caller+0xbb/0x310
[  424.226314]  ? trace_hardirqs_off_caller+0xbb/0x310
[  424.231333]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.236174]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.241189]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.246199]  ? task_prio+0x50/0x50
[  424.249833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.255365]  ? check_preemption_disabled+0x48/0x280
[  424.260403]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.265249]  apic_timer_interrupt+0xf/0x20
[  424.269471]  </IRQ>
[  424.271718] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  424.276645] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  424.295540] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  424.303244] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  424.310527] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  424.317804] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  424.325063] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  424.332326] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  424.339655]  skb_clone+0x1bb/0x500
[  424.343211]  ? finish_task_switch+0x2f4/0x910
[  424.347708]  ? skb_split+0x11e0/0x11e0
[  424.351609]  ? preempt_notifier_register+0x200/0x200
[  424.356709]  ? __switch_to_asm+0x34/0x70
[  424.360764]  ? __switch_to_asm+0x34/0x70
[  424.364834]  ? __switch_to_asm+0x40/0x70
[  424.368905]  ? __switch_to_asm+0x34/0x70
[  424.372965]  ? __switch_to_asm+0x40/0x70
[  424.377024]  ? __switch_to_asm+0x34/0x70
[  424.381268]  ? __switch_to_asm+0x40/0x70
[  424.385327]  ? __switch_to_asm+0x34/0x70
[  424.389384]  ? __switch_to_asm+0x34/0x70
[  424.393439]  ? __switch_to_asm+0x40/0x70
[  424.397495]  ? __switch_to_asm+0x34/0x70
[  424.401567]  bpf_clone_redirect+0xb9/0x490
[  424.405895]  ? __schedule+0x8d7/0x21d0
[  424.409887]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  424.414904]  ? __sched_text_start+0x8/0x8
[  424.419060]  ? retint_kernel+0x2d/0x2d
[  424.423055]  ? find_held_lock+0x36/0x1c0
[  424.427127]  ? lock_acquire+0x1ed/0x520
[  424.431099]  ? bpf_test_run+0x3cb/0x780
[  424.435077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.440615]  ? check_preemption_disabled+0x48/0x280
[  424.445638]  ? kasan_check_read+0x11/0x20
[  424.449787]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.455059]  ? rcu_softirq_qs+0x20/0x20
[  424.459029]  ? preempt_schedule+0x4d/0x60
[  424.463177]  ? ___preempt_schedule+0x16/0x18
[  424.467588]  ? bpf_test_run+0x25d/0x780
[  424.471570]  ? netlink_diag_dump+0x2a0/0x2a0
[  424.475989]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.481537]  ? bpf_test_init.isra.10+0x70/0x100
[  424.486207]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  424.490980]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  424.495818]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  424.501372]  ? fput+0x130/0x1a0
[  424.504741]  ? __bpf_prog_get+0x9b/0x290
[  424.508803]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  424.513645]  ? bpf_prog_test_run+0x130/0x1a0
[  424.518147]  ? __x64_sys_bpf+0x3d8/0x520
[  424.522202]  ? bpf_prog_get+0x20/0x20
[  424.526014]  ? do_syscall_64+0x1b9/0x820
[  424.530071]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  424.535432]  ? syscall_return_slowpath+0x5e0/0x5e0
[  424.540359]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.545218]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.550229]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  424.555260]  ? prepare_exit_to_usermode+0x291/0x3b0
[  424.560283]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.565135]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  424.570526] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  424.570586] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  424.577538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  424.577543] Call Trace:
[  424.577548]  <IRQ>
[  424.577563]  dump_stack+0x244/0x39d
[  424.577581]  ? dump_stack_print_info.cold.1+0x20/0x20
[  424.584135] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  424.593433]  warn_alloc.cold.116+0xb7/0x1bd
[  424.595984] syz-executor2 cpuset=syz2 mems_allowed=0
[  424.598137]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  424.631586]  ? lock_downgrade+0x900/0x900
[  424.635737]  ? trace_hardirqs_off+0xb8/0x310
[  424.640175]  ? trace_hardirqs_off+0xb8/0x310
[  424.644592]  __alloc_pages_slowpath+0x26e8/0x2e10
[  424.649457]  ? warn_alloc+0x120/0x120
[  424.653276]  ? print_usage_bug+0xc0/0xc0
[  424.657364]  ? warn_alloc+0x120/0x120
[  424.661279]  ? warn_alloc+0x120/0x120
[  424.665080]  ? print_usage_bug+0xc0/0xc0
[  424.669165]  ? print_usage_bug+0xc0/0xc0
[  424.673224]  ? __lock_acquire+0x62f/0x4c20
[  424.677461]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.682997]  ? should_fail+0x22d/0xd01
[  424.686878]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.691973]  ? __lock_acquire+0x62f/0x4c20
[  424.696207]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.701322]  ? __lock_acquire+0x62f/0x4c20
[  424.705547]  ? should_fail+0x22d/0xd01
[  424.709433]  ? find_held_lock+0x36/0x1c0
[  424.713505]  ? mark_held_locks+0x130/0x130
[  424.717758]  ? mark_held_locks+0x130/0x130
[  424.721987]  ? zap_class+0x640/0x640
[  424.725714]  ? zap_class+0x640/0x640
[  424.729426]  ? print_usage_bug+0xc0/0xc0
[  424.733482]  ? do_raw_spin_unlock+0xa7/0x330
[  424.737886]  ? zap_class+0x640/0x640
[  424.741594]  ? print_usage_bug+0xc0/0xc0
[  424.745653]  ? wq_watchdog_touch+0x9c/0xfe
[  424.749887]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.755443]  ? check_preemption_disabled+0x48/0x280
[  424.760490]  ? __lock_is_held+0xb5/0x140
[  424.764556]  __alloc_pages_nodemask+0xa80/0xde0
[  424.769223]  ? zap_class+0x640/0x640
[  424.773028]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  424.778050]  ? find_held_lock+0x36/0x1c0
[  424.782118]  ? ____cache_alloc_node+0x1c7/0x1e0
[  424.786788]  ? lock_downgrade+0x900/0x900
[  424.791067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.796619]  cache_grow_begin+0xa5/0x8c0
[  424.800675]  ? do_raw_spin_unlock+0xa7/0x330
[  424.805348]  fallback_alloc+0x204/0x2e0
[  424.809327]  ____cache_alloc_node+0x1c7/0x1e0
[  424.813824]  kmem_cache_alloc_node+0xe3/0x730
[  424.818314]  ? ipv6_get_ifaddr+0x42e/0x620
[  424.822552]  __alloc_skb+0x119/0x770
[  424.826263]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.831542]  ? netdev_alloc_frag+0x1f0/0x1f0
[  424.835946]  ? lock_downgrade+0x900/0x900
[  424.840186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.845718]  ? refcount_sub_and_test_checked+0x203/0x310
[  424.851171]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  424.856620]  ? addrconf_rs_timer+0x690/0x690
[  424.861038]  ndisc_alloc_skb+0x144/0x340
[  424.865107]  ndisc_send_rs+0x331/0x6e0
[  424.869015]  addrconf_rs_timer+0x314/0x690
[  424.873356]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.877595]  call_timer_fn+0x272/0x920
[  424.881477]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.885710]  ? process_timeout+0x40/0x40
[  424.889774]  ? mark_held_locks+0xc7/0x130
[  424.894409]  ? _raw_spin_unlock_irq+0x27/0x80
[  424.898900]  ? _raw_spin_unlock_irq+0x27/0x80
[  424.903396]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.907631]  ? lockdep_hardirqs_on+0x296/0x5b0
[  424.912219]  ? trace_hardirqs_on+0xbd/0x310
[  424.916542]  ? kasan_check_read+0x11/0x20
[  424.920700]  ? __run_timers+0x7da/0xc70
[  424.924673]  ? trace_hardirqs_off_caller+0x310/0x310
[  424.929777]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.934124]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.938359]  __run_timers+0x7e5/0xc70
[  424.942171]  ? timer_fixup_init+0x70/0x70
[  424.946322]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  424.951340]  ? zap_class+0x640/0x640
[  424.955056]  ? print_usage_bug+0xc0/0xc0
[  424.959144]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  424.964336]  ? find_held_lock+0x36/0x1c0
[  424.968401]  ? zap_class+0x640/0x640
[  424.972115]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.977654]  ? check_preemption_disabled+0x48/0x280
[  424.982691]  ? __lock_is_held+0xb5/0x140
[  424.986750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.992285]  ? check_preemption_disabled+0x48/0x280
[  424.997301]  run_timer_softirq+0x52/0xb0
[  425.001362]  ? rcu_read_lock_sched_held+0x14f/0x180
[  425.006379]  __do_softirq+0x308/0xb7e
[  425.010279]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  425.014786]  ? lock_downgrade+0x900/0x900
[  425.018934]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  425.024037]  ? pvclock_read_flags+0x160/0x160
[  425.028536]  ? lapic_next_event+0x5a/0x90
[  425.032683]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.038219]  ? kvm_clock_read+0x18/0x30
[  425.042190]  ? kvm_sched_clock_read+0x9/0x20
[  425.046594]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.052135]  ? check_preemption_disabled+0x48/0x280
[  425.057172]  irq_exit+0x17f/0x1c0
[  425.060894]  smp_apic_timer_interrupt+0x1cb/0x760
[  425.065735]  ? smp_call_function_single_interrupt+0x650/0x650
[  425.071619]  ? interrupt_entry+0xb5/0xc0
[  425.075680]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.080690]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.085701]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.090539]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.095549]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.100559]  ? task_prio+0x50/0x50
[  425.104102]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.109651]  ? check_preemption_disabled+0x48/0x280
[  425.114669]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.119533]  apic_timer_interrupt+0xf/0x20
[  425.123755]  </IRQ>
[  425.125993] RIP: 0010:dump_stack+0x358/0x39d
[  425.130422] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  425.149315] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  425.157017] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  425.164277] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  425.171541] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  425.178804] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  425.186270] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  425.193548]  ? dump_stack+0x34f/0x39d
[  425.197360]  ? dump_stack_print_info.cold.1+0x20/0x20
[  425.202724]  ? mark_held_locks+0x130/0x130
[  425.206952]  ? mark_held_locks+0x130/0x130
[  425.211186]  dump_header+0x27b/0xf72
[  425.214909]  ? pagefault_out_of_memory+0x197/0x197
[  425.219858]  ? __lock_acquire+0x62f/0x4c20
[  425.224093]  ? percpu_ref_get_many+0x240/0x240
[  425.228677]  ? print_usage_bug+0xc0/0xc0
[  425.232743]  ? zap_class+0x640/0x640
[  425.236455]  ? print_usage_bug+0xc0/0xc0
[  425.240511]  ? print_usage_bug+0xc0/0xc0
[  425.244597]  ? zap_class+0x640/0x640
[  425.248307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.253878]  ? find_held_lock+0x36/0x1c0
[  425.257940]  ? mark_held_locks+0xc7/0x130
[  425.262087]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  425.267191]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  425.272292]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  425.276875]  ? trace_hardirqs_on+0xbd/0x310
[  425.281194]  ? kasan_check_read+0x11/0x20
[  425.285340]  ? ___ratelimit+0x3b4/0x672
[  425.289335]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.294434]  ? trace_hardirqs_on+0x310/0x310
[  425.298838]  ? lock_downgrade+0x900/0x900
[  425.302983]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  425.308108]  ? ___ratelimit+0x3b9/0x672
[  425.312086]  ? idr_get_free+0xf70/0xf70
[  425.316069]  ? find_held_lock+0x36/0x1c0
[  425.320138]  oom_kill_process.cold.27+0x10/0x903
[  425.324890]  ? zap_class+0x640/0x640
[  425.328687]  ? check_preemption_disabled+0x48/0x280
[  425.333701]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.338625]  ? kasan_check_read+0x11/0x20
[  425.342770]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.348133]  ? oom_evaluate_task+0x540/0x540
[  425.352667]  ? find_held_lock+0x36/0x1c0
[  425.356733]  ? out_of_memory+0x974/0x1430
[  425.361111]  ? lock_downgrade+0x900/0x900
[  425.365254]  ? check_preemption_disabled+0x48/0x280
[  425.370270]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.375195]  ? kasan_check_read+0x11/0x20
[  425.379335]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.384607]  ? rcu_softirq_qs+0x20/0x20
[  425.388585]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.394132]  ? oom_evaluate_task+0x302/0x540
[  425.398574]  out_of_memory+0xa84/0x1430
[  425.402550]  ? oom_killer_disable+0x3a0/0x3a0
[  425.407051]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  425.411979]  ? __ww_mutex_check_waiters+0x160/0x160
[  425.417001]  __alloc_pages_slowpath+0x2354/0x2e10
[  425.421863]  ? warn_alloc+0x120/0x120
[  425.425749]  ? mark_held_locks+0x130/0x130
[  425.429985]  ? find_get_entry+0xaae/0x1120
[  425.434222]  ? filemap_map_pages+0x1a20/0x1a20
[  425.438813]  ? zap_class+0x640/0x640
[  425.442544]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.448093]  ? check_preemption_disabled+0x48/0x280
[  425.453131]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.458662]  ? should_fail+0x22d/0xd01
[  425.462571]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.467674]  ? zap_class+0x640/0x640
[  425.471408]  ? __lock_is_held+0xb5/0x140
[  425.475505]  ? mark_held_locks+0x130/0x130
[  425.479737]  ? lock_release+0xa00/0xa00
[  425.483794]  ? perf_trace_sched_process_exec+0x860/0x860
[  425.489254]  ? xa_load+0x2ba/0x460
[  425.492807]  ? lock_downgrade+0x900/0x900
[  425.496955]  ? __might_sleep+0x95/0x190
[  425.500958]  __alloc_pages_nodemask+0xa80/0xde0
[  425.505628]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  425.510659]  ? __page_cache_alloc+0x191/0x5c0
[  425.515235]  ? xa_load+0x2e1/0x460
[  425.518774]  ? xa_clear_mark+0x40/0x40
[  425.522659]  ? zap_class+0x640/0x640
[  425.526377]  ? zap_class+0x640/0x640
[  425.530093]  ? zap_class+0x640/0x640
[  425.533802]  ? __do_page_cache_readahead+0x663/0x810
[  425.538905]  ? find_held_lock+0x36/0x1c0
[  425.543075]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  425.548617]  alloc_pages_current+0x173/0x350
[  425.553033]  __page_cache_alloc+0x38c/0x5c0
[  425.557346]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.562271]  ? kasan_check_read+0x11/0x20
[  425.566410]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.571682]  ? generic_perform_write+0x6a0/0x6a0
[  425.576437]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.582081]  ? check_preemption_disabled+0x48/0x280
[  425.587218]  filemap_fault+0x1595/0x25f0
[  425.591281]  ? __lock_page_or_retry+0xa00/0xa00
[  425.595944]  ? mark_held_locks+0x130/0x130
[  425.600200]  ? filemap_map_pages+0xd6b/0x1a20
[  425.604692]  ? lock_downgrade+0x900/0x900
[  425.608833]  ? check_preemption_disabled+0x48/0x280
[  425.613850]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.618772]  ? kasan_check_read+0x11/0x20
[  425.622919]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.628192]  ? rcu_softirq_qs+0x20/0x20
[  425.632261]  ? filemap_map_pages+0xd92/0x1a20
[  425.636763]  ? find_get_entries_tag+0x1400/0x1400
[  425.641603]  ? find_held_lock+0x36/0x1c0
[  425.645699]  ? lock_acquire+0x1ed/0x520
[  425.649672]  ? ext4_filemap_fault+0x7a/0xad
[  425.653995]  ? lock_release+0xa00/0xa00
[  425.658061]  ? perf_trace_sched_process_exec+0x860/0x860
[  425.663519]  ? print_usage_bug+0xc0/0xc0
[  425.667602]  ? down_read+0x8d/0x120
[  425.671309]  ? ext4_filemap_fault+0x7a/0xad
[  425.675630]  ? __down_interruptible+0x700/0x700
[  425.680297]  ? find_held_lock+0x36/0x1c0
[  425.684356]  ext4_filemap_fault+0x82/0xad
[  425.688501]  __do_fault+0x100/0x6b0
[  425.692129]  ? lock_downgrade+0x900/0x900
[  425.696271]  ? pmd_devmap_trans_unstable+0x220/0x220
[  425.701376]  ? kasan_check_read+0x11/0x20
[  425.705532]  ? do_raw_spin_unlock+0xa7/0x330
[  425.709935]  ? do_raw_spin_trylock+0x270/0x270
[  425.714528]  __handle_mm_fault+0x3ea0/0x5be0
[  425.719025]  ? perf_trace_lock+0x7a0/0x7a0
[  425.723266]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  425.728124]  ? __switch_to_asm+0x34/0x70
[  425.732178]  ? __switch_to_asm+0x34/0x70
[  425.736247]  ? zap_class+0x640/0x640
[  425.739962]  ? zap_class+0x640/0x640
[  425.743668]  ? __x64_sys_futex+0x53e/0x6a0
[  425.747904]  ? find_held_lock+0x36/0x1c0
[  425.752057]  ? handle_mm_fault+0x42a/0xc70
[  425.756297]  ? lock_downgrade+0x900/0x900
[  425.760440]  ? check_preemption_disabled+0x48/0x280
[  425.765459]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.770387]  ? kasan_check_read+0x11/0x20
[  425.774619]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.779892]  ? rcu_softirq_qs+0x20/0x20
[  425.783866]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.789054]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.794593]  ? check_preemption_disabled+0x48/0x280
[  425.799614]  handle_mm_fault+0x54f/0xc70
[  425.803675]  ? __handle_mm_fault+0x5be0/0x5be0
[  425.808263]  ? find_vma+0x34/0x190
[  425.811806]  __do_page_fault+0x5e8/0xe60
[  425.815867]  ? trace_hardirqs_off+0xb8/0x310
[  425.820288]  do_page_fault+0xf2/0x7e0
[  425.824091]  ? vmalloc_sync_all+0x30/0x30
[  425.828234]  ? error_entry+0x70/0xd0
[  425.831947]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.836964]  ? trace_hardirqs_on_caller+0xc0/0x310
[  425.841889]  ? syscall_return_slowpath+0x5e0/0x5e0
[  425.846814]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.851653]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.856666]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  425.862135]  ? prepare_exit_to_usermode+0x291/0x3b0
[  425.867148]  ? page_fault+0x8/0x30
[  425.870691]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.875534]  ? page_fault+0x8/0x30
[  425.879078]  page_fault+0x1e/0x30
[  425.882525] RIP: 0033:0x404068
[  425.885740] Code: Bad RIP value.
[  425.889097] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  425.894482] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  425.901744] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  425.909096] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  425.916361] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  425.923632] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  425.930931] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  425.930935] warn_alloc_show_mem: 1 callbacks suppressed
[  425.930941] Mem-Info:
[  425.938300] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  425.943665] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  425.943665]  active_file:13 inactive_file:13 isolated_file:0
[  425.943665]  unevictable:0 dirty:0 writeback:0 unstable:0
[  425.943665]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  425.943665]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  425.943665]  free:13747 free_pcp:348 free_cma:0
[  425.946034] Call Trace:
[  425.955413] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  425.988625]  <IRQ>
[  425.991188] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  426.019042]  dump_stack+0x244/0x39d
[  426.021166] lowmem_reserve[]: 0 2818 6321 6321
[  426.047398]  ? dump_stack_print_info.cold.1+0x20/0x20
[  426.051000] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  426.055582]  warn_alloc.cold.116+0xb7/0x1bd
[  426.060748] lowmem_reserve[]: 0 0 3503 3503
[  426.088335]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  426.092628] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  426.096942]  ? lock_downgrade+0x900/0x900
[  426.101770] lowmem_reserve[]: 0 0 0 0
[  426.131085]  ? trace_hardirqs_off+0xb8/0x310
[  426.135202] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  426.139005]  ? trace_hardirqs_off+0xb8/0x310
[  426.143383] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  426.156902]  __alloc_pages_slowpath+0x26e8/0x2e10
[  426.161278] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  426.176206]  ? warn_alloc+0x120/0x120
[  426.181006] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  426.196164]  ? print_usage_bug+0xc0/0xc0
[  426.199956] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  426.208776]  ? warn_alloc+0x120/0x120
[  426.212813] 4484 total pagecache pages
[  426.221463]  ? warn_alloc+0x120/0x120
[  426.225245] 0 pages in swap cache
[  426.229116]  ? print_usage_bug+0xc0/0xc0
[  426.232891] Swap cache stats: add 0, delete 0, find 0/0
[  426.236336]  ? print_usage_bug+0xc0/0xc0
[  426.240367] Free swap  = 0kB
[  426.245736]  ? __lock_acquire+0x62f/0x4c20
[  426.249769] Total swap = 0kB
[  426.252776]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.256992] 1965979 pages RAM
[  426.260004]  ? should_fail+0x22d/0xd01
[  426.265522] 0 pages HighMem/MovableOnly
[  426.265527] 342854 pages reserved
[  426.265534] 0 pages cma reserved
[  426.268631]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.272564] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  426.276458]  ? __lock_acquire+0x62f/0x4c20
[  426.279984] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  426.283257]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.288332] syz-fuzzer cpuset=/ mems_allowed=0
[  426.294893]  ? __lock_acquire+0x62f/0x4c20
[  426.294907]  ? should_fail+0x22d/0xd01
[  426.327078]  ? find_held_lock+0x36/0x1c0
[  426.332446]  ? mark_held_locks+0x130/0x130
[  426.336680]  ? mark_held_locks+0x130/0x130
[  426.340911]  ? zap_class+0x640/0x640
[  426.344620]  ? zap_class+0x640/0x640
[  426.348336]  ? print_usage_bug+0xc0/0xc0
[  426.352492]  ? do_raw_spin_unlock+0xa7/0x330
[  426.356901]  ? zap_class+0x640/0x640
[  426.360611]  ? print_usage_bug+0xc0/0xc0
[  426.364680]  ? wq_watchdog_touch+0x9c/0xfe
[  426.368914]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.374483]  ? check_preemption_disabled+0x48/0x280
[  426.379509]  ? __lock_is_held+0xb5/0x140
[  426.383581]  __alloc_pages_nodemask+0xa80/0xde0
[  426.388249]  ? zap_class+0x640/0x640
[  426.391977]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  426.397018]  ? find_held_lock+0x36/0x1c0
[  426.401084]  ? ____cache_alloc_node+0x1c7/0x1e0
[  426.405751]  ? lock_downgrade+0x900/0x900
[  426.409904]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.415445]  cache_grow_begin+0xa5/0x8c0
[  426.419502]  ? do_raw_spin_unlock+0xa7/0x330
[  426.423923]  fallback_alloc+0x204/0x2e0
[  426.427903]  ____cache_alloc_node+0x1c7/0x1e0
[  426.432403]  kmem_cache_alloc_node+0xe3/0x730
[  426.436893]  ? ipv6_get_ifaddr+0x42e/0x620
[  426.441134]  __alloc_skb+0x119/0x770
[  426.444943]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.450240]  ? netdev_alloc_frag+0x1f0/0x1f0
[  426.454642]  ? lock_downgrade+0x900/0x900
[  426.458796]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.464332]  ? refcount_sub_and_test_checked+0x203/0x310
[  426.469780]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  426.475225]  ? addrconf_rs_timer+0x690/0x690
[  426.479637]  ndisc_alloc_skb+0x144/0x340
[  426.483694]  ndisc_send_rs+0x331/0x6e0
[  426.487586]  addrconf_rs_timer+0x314/0x690
[  426.491823]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.496067]  call_timer_fn+0x272/0x920
[  426.499972]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.504204]  ? process_timeout+0x40/0x40
[  426.508284]  ? __run_timers+0x7da/0xc70
[  426.512256]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.516748]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.521240]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.525480]  ? lockdep_hardirqs_on+0x296/0x5b0
[  426.530074]  ? trace_hardirqs_on+0xbd/0x310
[  426.534391]  ? kasan_check_read+0x11/0x20
[  426.538531]  ? __run_timers+0x7da/0xc70
[  426.542507]  ? trace_hardirqs_off_caller+0x310/0x310
[  426.547721]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.551961]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.556192]  __run_timers+0x7e5/0xc70
[  426.560023]  ? timer_fixup_init+0x70/0x70
[  426.564174]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  426.569201]  ? zap_class+0x640/0x640
[  426.572914]  ? enqueue_hrtimer+0x1a5/0x560
[  426.577152]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  426.582343]  ? find_held_lock+0x36/0x1c0
[  426.586408]  ? zap_class+0x640/0x640
[  426.590137]  ? pvclock_read_flags+0x160/0x160
[  426.594630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.600250]  ? check_preemption_disabled+0x48/0x280
[  426.605272]  ? __lock_is_held+0xb5/0x140
[  426.609330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.615316]  ? check_preemption_disabled+0x48/0x280
[  426.620543]  run_timer_softirq+0x52/0xb0
[  426.624605]  ? rcu_read_lock_sched_held+0x14f/0x180
[  426.629634]  __do_softirq+0x308/0xb7e
[  426.633524]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  426.638018]  ? lock_downgrade+0x900/0x900
[  426.642184]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  426.647291]  ? pvclock_read_flags+0x160/0x160
[  426.651807]  ? lapic_next_event+0x5a/0x90
[  426.655969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.661634]  ? kvm_clock_read+0x18/0x30
[  426.665607]  ? kvm_sched_clock_read+0x9/0x20
[  426.670019]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.675562]  ? check_preemption_disabled+0x48/0x280
[  426.680583]  irq_exit+0x17f/0x1c0
[  426.684035]  smp_apic_timer_interrupt+0x1cb/0x760
[  426.688871]  ? smp_reschedule_interrupt+0x109/0x650
[  426.693883]  ? smp_call_function_single_interrupt+0x650/0x650
[  426.699762]  ? interrupt_entry+0xb5/0xc0
[  426.703818]  ? trace_hardirqs_off_caller+0xbb/0x310
[  426.708830]  ? trace_hardirqs_off_caller+0xbb/0x310
[  426.713847]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.718688]  ? trace_hardirqs_on_caller+0x310/0x310
[  426.723698]  ? trace_hardirqs_on_caller+0x310/0x310
[  426.728722]  ? task_prio+0x50/0x50
[  426.732277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.737813]  ? check_preemption_disabled+0x48/0x280
[  426.742834]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.747679]  apic_timer_interrupt+0xf/0x20
[  426.751906]  </IRQ>
[  426.754146] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  426.759086] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  426.777982] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  426.785685] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  426.792967] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  426.800234] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  426.807500] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  426.814766] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  426.822072]  skb_clone+0x1bb/0x500
[  426.825619]  ? finish_task_switch+0x2f4/0x910
[  426.830114]  ? skb_split+0x11e0/0x11e0
[  426.834002]  ? preempt_notifier_register+0x200/0x200
[  426.839099]  ? __switch_to_asm+0x34/0x70
[  426.843161]  ? __switch_to_asm+0x34/0x70
[  426.847221]  ? __switch_to_asm+0x40/0x70
[  426.851279]  ? __switch_to_asm+0x34/0x70
[  426.855337]  ? __switch_to_asm+0x40/0x70
[  426.859396]  ? __switch_to_asm+0x34/0x70
[  426.863451]  ? __switch_to_asm+0x40/0x70
[  426.867515]  ? __switch_to_asm+0x34/0x70
[  426.871569]  ? __switch_to_asm+0x34/0x70
[  426.875627]  ? __switch_to_asm+0x40/0x70
[  426.879684]  ? __switch_to_asm+0x34/0x70
[  426.883747]  bpf_clone_redirect+0xb9/0x490
[  426.887983]  ? __schedule+0x8d7/0x21d0
[  426.892216]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  426.897236]  ? __sched_text_start+0x8/0x8
[  426.901381]  ? retint_kernel+0x2d/0x2d
[  426.905274]  ? find_held_lock+0x36/0x1c0
[  426.909368]  ? lock_acquire+0x1ed/0x520
[  426.913339]  ? bpf_test_run+0x3cb/0x780
[  426.917318]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.922865]  ? check_preemption_disabled+0x48/0x280
[  426.927886]  ? kasan_check_read+0x11/0x20
[  426.932054]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.937325]  ? rcu_softirq_qs+0x20/0x20
[  426.941300]  ? preempt_schedule+0x4d/0x60
[  426.945455]  ? ___preempt_schedule+0x16/0x18
[  426.949868]  ? bpf_test_run+0x25d/0x780
[  426.953845]  ? netlink_diag_dump+0x2a0/0x2a0
[  426.958354]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.963887]  ? bpf_test_init.isra.10+0x70/0x100
[  426.968568]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  426.973333]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  426.978171]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  426.983707]  ? fput+0x130/0x1a0
[  426.986984]  ? __bpf_prog_get+0x9b/0x290
[  426.991090]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  426.995939]  ? bpf_prog_test_run+0x130/0x1a0
[  427.000349]  ? __x64_sys_bpf+0x3d8/0x520
[  427.004405]  ? bpf_prog_get+0x20/0x20
[  427.008244]  ? do_syscall_64+0x1b9/0x820
[  427.012302]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  427.017663]  ? syscall_return_slowpath+0x5e0/0x5e0
[  427.022588]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.027525]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.032541]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  427.037643]  ? prepare_exit_to_usermode+0x291/0x3b0
[  427.042663]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.047521]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  427.052942] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  427.053005] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  427.060236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  427.060241] Call Trace:
[  427.060247]  <IRQ>
[  427.060266]  dump_stack+0x244/0x39d
[  427.060283]  ? dump_stack_print_info.cold.1+0x20/0x20
[  427.060309]  warn_alloc.cold.116+0xb7/0x1bd
[  427.066831] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  427.076141]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  427.078699] syz-executor2 cpuset=syz2 mems_allowed=0
[  427.080841]  ? lock_downgrade+0x900/0x900
[  427.118471]  ? trace_hardirqs_off+0xb8/0x310
[  427.122975]  ? trace_hardirqs_off+0xb8/0x310
[  427.127388]  __alloc_pages_slowpath+0x26e8/0x2e10
[  427.132256]  ? warn_alloc+0x120/0x120
[  427.136079]  ? print_usage_bug+0xc0/0xc0
[  427.140153]  ? warn_alloc+0x120/0x120
[  427.143958]  ? warn_alloc+0x120/0x120
[  427.147755]  ? print_usage_bug+0xc0/0xc0
[  427.151821]  ? kvm_clock_read+0x18/0x30
[  427.155794]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  427.160806]  ? print_usage_bug+0xc0/0xc0
[  427.164869]  ? __lock_acquire+0x62f/0x4c20
[  427.169114]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.174648]  ? should_fail+0x22d/0xd01
[  427.178531]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.183934]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.189195]  ? __lock_acquire+0x62f/0x4c20
[  427.193441]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.198538]  ? __lock_acquire+0x62f/0x4c20
[  427.202767]  ? should_fail+0x22d/0xd01
[  427.206663]  ? rcu_irq_exit+0x1a2/0x390
[  427.210641]  ? mark_held_locks+0x130/0x130
[  427.214881]  ? mark_held_locks+0x130/0x130
[  427.219129]  ? mark_held_locks+0xc7/0x130
[  427.223286]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  427.228312]  ? zap_class+0x640/0x640
[  427.232037]  ? print_usage_bug+0xc0/0xc0
[  427.236096]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.241629]  ? check_preemption_disabled+0x48/0x280
[  427.246647]  ? __lock_is_held+0xb5/0x140
[  427.250731]  __alloc_pages_nodemask+0xa80/0xde0
[  427.255408]  ? zap_class+0x640/0x640
[  427.259123]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  427.264152]  ? find_held_lock+0x36/0x1c0
[  427.268220]  ? ____cache_alloc_node+0x1c7/0x1e0
[  427.272894]  ? lock_downgrade+0x900/0x900
[  427.277056]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.282679]  cache_grow_begin+0xa5/0x8c0
[  427.286734]  ? do_raw_spin_unlock+0xa7/0x330
[  427.291148]  fallback_alloc+0x204/0x2e0
[  427.295140]  ____cache_alloc_node+0x1c7/0x1e0
[  427.299636]  kmem_cache_alloc_node+0xe3/0x730
[  427.304127]  ? ipv6_get_ifaddr+0x42e/0x620
[  427.308367]  __alloc_skb+0x119/0x770
[  427.312162]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.317441]  ? netdev_alloc_frag+0x1f0/0x1f0
[  427.321949]  ? lock_downgrade+0x900/0x900
[  427.326103]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.331655]  ? refcount_sub_and_test_checked+0x203/0x310
[  427.337102]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  427.342560]  ? addrconf_rs_timer+0x690/0x690
[  427.346995]  ndisc_alloc_skb+0x144/0x340
[  427.351143]  ndisc_send_rs+0x331/0x6e0
[  427.355036]  addrconf_rs_timer+0x314/0x690
[  427.359274]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.363516]  call_timer_fn+0x272/0x920
[  427.367398]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.371628]  ? process_timeout+0x40/0x40
[  427.375695]  ? mark_held_locks+0xc7/0x130
[  427.379838]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.384323]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.388813]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.393043]  ? lockdep_hardirqs_on+0x296/0x5b0
[  427.397622]  ? trace_hardirqs_on+0xbd/0x310
[  427.401943]  ? kasan_check_read+0x11/0x20
[  427.406090]  ? __run_timers+0x7da/0xc70
[  427.410070]  ? trace_hardirqs_off_caller+0x310/0x310
[  427.415177]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.419415]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.423668]  __run_timers+0x7e5/0xc70
[  427.427486]  ? timer_fixup_init+0x70/0x70
[  427.431629]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  427.436645]  ? zap_class+0x640/0x640
[  427.440406]  ? print_usage_bug+0xc0/0xc0
[  427.444473]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  427.449665]  ? find_held_lock+0x36/0x1c0
[  427.453740]  ? zap_class+0x640/0x640
[  427.457460]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.462994]  ? check_preemption_disabled+0x48/0x280
[  427.468012]  ? __lock_is_held+0xb5/0x140
[  427.472086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.477620]  ? check_preemption_disabled+0x48/0x280
[  427.482643]  run_timer_softirq+0x52/0xb0
[  427.486702]  ? rcu_read_lock_sched_held+0x14f/0x180
[  427.491717]  __do_softirq+0x308/0xb7e
[  427.495516]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  427.500007]  ? lock_downgrade+0x900/0x900
[  427.504157]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  427.509262]  ? pvclock_read_flags+0x160/0x160
[  427.513768]  ? lapic_next_event+0x5a/0x90
[  427.517913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.523471]  ? kvm_clock_read+0x18/0x30
[  427.527447]  ? kvm_sched_clock_read+0x9/0x20
[  427.531853]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.537411]  ? check_preemption_disabled+0x48/0x280
[  427.542436]  irq_exit+0x17f/0x1c0
[  427.545889]  smp_apic_timer_interrupt+0x1cb/0x760
[  427.550816]  ? smp_call_function_single_interrupt+0x650/0x650
[  427.556702]  ? interrupt_entry+0xb5/0xc0
[  427.560761]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.565769]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.570782]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.575624]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.580647]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.585662]  ? task_prio+0x50/0x50
[  427.589198]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.594762]  ? check_preemption_disabled+0x48/0x280
[  427.599779]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.604629]  apic_timer_interrupt+0xf/0x20
[  427.608854]  </IRQ>
[  427.611134] RIP: 0010:dump_stack+0x358/0x39d
[  427.615553] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  427.634449] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  427.642156] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  427.649424] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  427.656686] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  427.663950] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  427.671234] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  427.678551]  ? dump_stack+0x34f/0x39d
[  427.682376]  ? dump_stack_print_info.cold.1+0x20/0x20
[  427.687562]  ? mark_held_locks+0x130/0x130
[  427.691789]  ? mark_held_locks+0x130/0x130
[  427.696024]  dump_header+0x27b/0xf72
[  427.699743]  ? pagefault_out_of_memory+0x197/0x197
[  427.704675]  ? __lock_acquire+0x62f/0x4c20
[  427.708936]  ? percpu_ref_get_many+0x240/0x240
[  427.713516]  ? print_usage_bug+0xc0/0xc0
[  427.717576]  ? zap_class+0x640/0x640
[  427.721302]  ? print_usage_bug+0xc0/0xc0
[  427.725359]  ? print_usage_bug+0xc0/0xc0
[  427.729508]  ? zap_class+0x640/0x640
[  427.733220]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.738756]  ? find_held_lock+0x36/0x1c0
[  427.742822]  ? mark_held_locks+0xc7/0x130
[  427.746980]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  427.752091]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  427.757191]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  427.761774]  ? trace_hardirqs_on+0xbd/0x310
[  427.766090]  ? kasan_check_read+0x11/0x20
[  427.770231]  ? ___ratelimit+0x3b4/0x672
[  427.774288]  ? trace_hardirqs_off_caller+0x310/0x310
[  427.779391]  ? trace_hardirqs_on+0x310/0x310
[  427.783803]  ? lock_downgrade+0x900/0x900
[  427.787955]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  427.793055]  ? ___ratelimit+0x3b9/0x672
[  427.797139]  ? idr_get_free+0xf70/0xf70
[  427.801194]  ? find_held_lock+0x36/0x1c0
[  427.805276]  oom_kill_process.cold.27+0x10/0x903
[  427.810026]  ? zap_class+0x640/0x640
[  427.813733]  ? check_preemption_disabled+0x48/0x280
[  427.818748]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  427.823692]  ? kasan_check_read+0x11/0x20
[  427.827884]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.833163]  ? oom_evaluate_task+0x540/0x540
[  427.837575]  ? find_held_lock+0x36/0x1c0
[  427.841636]  ? out_of_memory+0x974/0x1430
[  427.845781]  ? lock_downgrade+0x900/0x900
[  427.849949]  ? check_preemption_disabled+0x48/0x280
[  427.854994]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  427.859925]  ? kasan_check_read+0x11/0x20
[  427.864078]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.869348]  ? rcu_softirq_qs+0x20/0x20
[  427.873336]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.878968]  ? oom_evaluate_task+0x302/0x540
[  427.883376]  out_of_memory+0xa84/0x1430
[  427.887441]  ? oom_killer_disable+0x3a0/0x3a0
[  427.891929]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  427.896862]  ? __ww_mutex_check_waiters+0x160/0x160
[  427.901894]  __alloc_pages_slowpath+0x2354/0x2e10
[  427.906757]  ? warn_alloc+0x120/0x120
[  427.910551]  ? mark_held_locks+0x130/0x130
[  427.914784]  ? find_get_entry+0xaae/0x1120
[  427.919022]  ? filemap_map_pages+0x1a20/0x1a20
[  427.923604]  ? zap_class+0x640/0x640
[  427.927317]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.932856]  ? check_preemption_disabled+0x48/0x280
[  427.937872]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.943407]  ? should_fail+0x22d/0xd01
[  427.947293]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.952485]  ? zap_class+0x640/0x640
[  427.956222]  ? __lock_is_held+0xb5/0x140
[  427.960286]  ? mark_held_locks+0x130/0x130
[  427.964622]  ? lock_release+0xa00/0xa00
[  427.968590]  ? perf_trace_sched_process_exec+0x860/0x860
[  427.974035]  ? xa_load+0x2ba/0x460
[  427.977576]  ? lock_downgrade+0x900/0x900
[  427.981726]  ? __might_sleep+0x95/0x190
[  427.985791]  __alloc_pages_nodemask+0xa80/0xde0
[  427.990465]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  427.995483]  ? __page_cache_alloc+0x191/0x5c0
[  428.000064]  ? xa_load+0x2e1/0x460
[  428.003611]  ? xa_clear_mark+0x40/0x40
[  428.007497]  ? zap_class+0x640/0x640
[  428.011218]  ? zap_class+0x640/0x640
[  428.014930]  ? zap_class+0x640/0x640
[  428.018642]  ? __do_page_cache_readahead+0x663/0x810
[  428.023749]  ? find_held_lock+0x36/0x1c0
[  428.027814]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  428.033363]  alloc_pages_current+0x173/0x350
[  428.037889]  __page_cache_alloc+0x38c/0x5c0
[  428.042214]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.047143]  ? kasan_check_read+0x11/0x20
[  428.051296]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.056577]  ? generic_perform_write+0x6a0/0x6a0
[  428.061338]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.066960]  ? check_preemption_disabled+0x48/0x280
[  428.071979]  filemap_fault+0x1595/0x25f0
[  428.076047]  ? __lock_page_or_retry+0xa00/0xa00
[  428.080714]  ? mark_held_locks+0x130/0x130
[  428.084960]  ? filemap_map_pages+0xd6b/0x1a20
[  428.089454]  ? lock_downgrade+0x900/0x900
[  428.093601]  ? check_preemption_disabled+0x48/0x280
[  428.098616]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.103542]  ? kasan_check_read+0x11/0x20
[  428.107686]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.112963]  ? rcu_softirq_qs+0x20/0x20
[  428.116948]  ? filemap_map_pages+0xd92/0x1a20
[  428.121457]  ? find_get_entries_tag+0x1400/0x1400
[  428.126294]  ? find_held_lock+0x36/0x1c0
[  428.130371]  ? lock_acquire+0x1ed/0x520
[  428.134341]  ? ext4_filemap_fault+0x7a/0xad
[  428.138790]  ? lock_release+0xa00/0xa00
[  428.142767]  ? perf_trace_sched_process_exec+0x860/0x860
[  428.148216]  ? print_usage_bug+0xc0/0xc0
[  428.152289]  ? down_read+0x8d/0x120
[  428.155914]  ? ext4_filemap_fault+0x7a/0xad
[  428.160234]  ? __down_interruptible+0x700/0x700
[  428.164904]  ? find_held_lock+0x36/0x1c0
[  428.168965]  ext4_filemap_fault+0x82/0xad
[  428.173111]  __do_fault+0x100/0x6b0
[  428.176762]  ? lock_downgrade+0x900/0x900
[  428.180913]  ? pmd_devmap_trans_unstable+0x220/0x220
[  428.186016]  ? kasan_check_read+0x11/0x20
[  428.190163]  ? do_raw_spin_unlock+0xa7/0x330
[  428.194571]  ? do_raw_spin_trylock+0x270/0x270
[  428.199165]  __handle_mm_fault+0x3ea0/0x5be0
[  428.203570]  ? perf_trace_lock+0x7a0/0x7a0
[  428.207819]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  428.212662]  ? __switch_to_asm+0x34/0x70
[  428.216721]  ? __switch_to_asm+0x34/0x70
[  428.220895]  ? zap_class+0x640/0x640
[  428.224605]  ? zap_class+0x640/0x640
[  428.228320]  ? __x64_sys_futex+0x53e/0x6a0
[  428.232555]  ? find_held_lock+0x36/0x1c0
[  428.236630]  ? handle_mm_fault+0x42a/0xc70
[  428.240865]  ? lock_downgrade+0x900/0x900
[  428.245010]  ? check_preemption_disabled+0x48/0x280
[  428.250112]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.255035]  ? kasan_check_read+0x11/0x20
[  428.259182]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.264454]  ? rcu_softirq_qs+0x20/0x20
[  428.268509]  ? trace_hardirqs_off_caller+0x310/0x310
[  428.273610]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.279140]  ? check_preemption_disabled+0x48/0x280
[  428.284159]  handle_mm_fault+0x54f/0xc70
[  428.288220]  ? __handle_mm_fault+0x5be0/0x5be0
[  428.292814]  ? find_vma+0x34/0x190
[  428.296366]  __do_page_fault+0x5e8/0xe60
[  428.300422]  ? trace_hardirqs_off+0xb8/0x310
[  428.304842]  do_page_fault+0xf2/0x7e0
[  428.308732]  ? vmalloc_sync_all+0x30/0x30
[  428.312881]  ? error_entry+0x70/0xd0
[  428.316595]  ? trace_hardirqs_off_caller+0xbb/0x310
[  428.321608]  ? trace_hardirqs_on_caller+0xc0/0x310
[  428.326531]  ? syscall_return_slowpath+0x5e0/0x5e0
[  428.331458]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.336296]  ? trace_hardirqs_on_caller+0x310/0x310
[  428.341304]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  428.346755]  ? prepare_exit_to_usermode+0x291/0x3b0
[  428.351768]  ? page_fault+0x8/0x30
[  428.355318]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.360369]  ? page_fault+0x8/0x30
[  428.363908]  page_fault+0x1e/0x30
[  428.367383] RIP: 0033:0x404068
[  428.370589] Code: Bad RIP value.
[  428.373949] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  428.379306] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  428.386573] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  428.393958] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  428.401239] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  428.408498] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  428.415790] warn_alloc_show_mem: 1 callbacks suppressed
[  428.415805] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  428.415807] Mem-Info:
[  428.415835] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  428.415835]  active_file:13 inactive_file:13 isolated_file:0
[  428.415835]  unevictable:0 dirty:0 writeback:0 unstable:0
[  428.415835]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  428.415835]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  428.415835]  free:13747 free_pcp:348 free_cma:0
[  428.421170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  428.428560] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  428.430950] Call Trace:
[  428.463979] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  428.473320]  <IRQ>
[  428.501155] lowmem_reserve[]: 0 2818 6321 6321
[  428.503754]  dump_stack+0x244/0x39d
[  428.529849] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  428.531993]  ? dump_stack_print_info.cold.1+0x20/0x20
[  428.536540] lowmem_reserve[]: 0 0 3503 3503
[  428.540199]  warn_alloc.cold.116+0xb7/0x1bd
[  428.567660] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  428.572843]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  428.577139] lowmem_reserve[]: 0 0 0 0
[  428.581461]  ? lock_downgrade+0x900/0x900
[  428.610581] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  428.615426]  ? trace_hardirqs_off+0xb8/0x310
[  428.619194] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  428.623345]  ? trace_hardirqs_off+0xb8/0x310
[  428.636943] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  428.641351]  __alloc_pages_slowpath+0x26e8/0x2e10
[  428.656233] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  428.660649]  ? warn_alloc+0x120/0x120
[  428.675770] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  428.675785] 4484 total pagecache pages
[  428.680619]  ? print_usage_bug+0xc0/0xc0
[  428.689432] 0 pages in swap cache
[  428.693217]  ? warn_alloc+0x120/0x120
[  428.701769] Swap cache stats: add 0, delete 0, find 0/0
[  428.705663]  ? warn_alloc+0x120/0x120
[  428.709695] Free swap  = 0kB
[  428.713134]  ? print_usage_bug+0xc0/0xc0
[  428.716905] Total swap = 0kB
[  428.716912] 1965979 pages RAM
[  428.722286]  ? print_usage_bug+0xc0/0xc0
[  428.726064] 0 pages HighMem/MovableOnly
[  428.729075]  ? __lock_acquire+0x62f/0x4c20
[  428.733105] 342854 pages reserved
[  428.733112] 0 pages cma reserved
[  428.736135]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.739263] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  428.743259]  ? should_fail+0x22d/0xd01
[  428.747292] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  428.751443]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.754869] syz-fuzzer cpuset=/ mems_allowed=0
[  428.758229]  ? __lock_acquire+0x62f/0x4c20
[  428.798282]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.803404]  ? __lock_acquire+0x62f/0x4c20
[  428.807654]  ? should_fail+0x22d/0xd01
[  428.811541]  ? find_held_lock+0x36/0x1c0
[  428.815605]  ? mark_held_locks+0x130/0x130
[  428.819850]  ? mark_held_locks+0x130/0x130
[  428.824078]  ? zap_class+0x640/0x640
[  428.827797]  ? zap_class+0x640/0x640
[  428.831538]  ? print_usage_bug+0xc0/0xc0
[  428.835590]  ? do_raw_spin_unlock+0xa7/0x330
[  428.839996]  ? zap_class+0x640/0x640
[  428.843707]  ? print_usage_bug+0xc0/0xc0
[  428.847768]  ? wq_watchdog_touch+0x9c/0xfe
[  428.852002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.857567]  ? check_preemption_disabled+0x48/0x280
[  428.862589]  ? __lock_is_held+0xb5/0x140
[  428.866667]  __alloc_pages_nodemask+0xa80/0xde0
[  428.871335]  ? zap_class+0x640/0x640
[  428.875138]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  428.880176]  ? find_held_lock+0x36/0x1c0
[  428.884240]  ? ____cache_alloc_node+0x1c7/0x1e0
[  428.888933]  ? lock_downgrade+0x900/0x900
[  428.893433]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.898975]  cache_grow_begin+0xa5/0x8c0
[  428.903036]  ? do_raw_spin_unlock+0xa7/0x330
[  428.907468]  fallback_alloc+0x204/0x2e0
[  428.911447]  ____cache_alloc_node+0x1c7/0x1e0
[  428.915946]  kmem_cache_alloc_node+0xe3/0x730
[  428.920438]  ? ipv6_get_ifaddr+0x42e/0x620
[  428.924680]  __alloc_skb+0x119/0x770
[  428.928391]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.933668]  ? netdev_alloc_frag+0x1f0/0x1f0
[  428.938074]  ? lock_downgrade+0x900/0x900
[  428.942232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.947775]  ? refcount_sub_and_test_checked+0x203/0x310
[  428.953241]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  428.958688]  ? addrconf_rs_timer+0x690/0x690
[  428.963121]  ndisc_alloc_skb+0x144/0x340
[  428.967188]  ndisc_send_rs+0x331/0x6e0
[  428.971078]  addrconf_rs_timer+0x314/0x690
[  428.975402]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.979645]  call_timer_fn+0x272/0x920
[  428.983542]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  428.987783]  ? process_timeout+0x40/0x40
[  428.991965]  ? __run_timers+0x7da/0xc70
[  428.995938]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.000431]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.004924]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.009157]  ? lockdep_hardirqs_on+0x296/0x5b0
[  429.013737]  ? trace_hardirqs_on+0xbd/0x310
[  429.018061]  ? kasan_check_read+0x11/0x20
[  429.022205]  ? __run_timers+0x7da/0xc70
[  429.026179]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.031286]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.035525]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.039778]  __run_timers+0x7e5/0xc70
[  429.043584]  ? timer_fixup_init+0x70/0x70
[  429.047730]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  429.052835]  ? zap_class+0x640/0x640
[  429.056558]  ? enqueue_hrtimer+0x1a5/0x560
[  429.061336]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  429.066552]  ? find_held_lock+0x36/0x1c0
[  429.070616]  ? zap_class+0x640/0x640
[  429.074349]  ? pvclock_read_flags+0x160/0x160
[  429.078846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.084382]  ? check_preemption_disabled+0x48/0x280
[  429.089414]  ? __lock_is_held+0xb5/0x140
[  429.093476]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.099122]  ? check_preemption_disabled+0x48/0x280
[  429.104150]  run_timer_softirq+0x52/0xb0
[  429.108214]  ? rcu_read_lock_sched_held+0x14f/0x180
[  429.113242]  __do_softirq+0x308/0xb7e
[  429.117041]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  429.121618]  ? lock_downgrade+0x900/0x900
[  429.125775]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  429.130889]  ? pvclock_read_flags+0x160/0x160
[  429.135386]  ? lapic_next_event+0x5a/0x90
[  429.139529]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.145068]  ? kvm_clock_read+0x18/0x30
[  429.149045]  ? kvm_sched_clock_read+0x9/0x20
[  429.153479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.159015]  ? check_preemption_disabled+0x48/0x280
[  429.164037]  irq_exit+0x17f/0x1c0
[  429.167493]  smp_apic_timer_interrupt+0x1cb/0x760
[  429.172422]  ? smp_reschedule_interrupt+0x109/0x650
[  429.177436]  ? smp_call_function_single_interrupt+0x650/0x650
[  429.183409]  ? interrupt_entry+0xb5/0xc0
[  429.187483]  ? trace_hardirqs_off_caller+0xbb/0x310
[  429.192496]  ? trace_hardirqs_off_caller+0xbb/0x310
[  429.197514]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.202450]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.207482]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.212493]  ? task_prio+0x50/0x50
[  429.216032]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.221564]  ? check_preemption_disabled+0x48/0x280
[  429.226581]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.231518]  apic_timer_interrupt+0xf/0x20
[  429.235752]  </IRQ>
[  429.237993] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  429.242923] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  429.261833] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  429.269640] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  429.276905] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  429.284170] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  429.291448] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  429.298711] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  429.306021]  skb_clone+0x1bb/0x500
[  429.309562]  ? finish_task_switch+0x2f4/0x910
[  429.314054]  ? skb_split+0x11e0/0x11e0
[  429.317946]  ? preempt_notifier_register+0x200/0x200
[  429.323047]  ? __switch_to_asm+0x34/0x70
[  429.327108]  ? __switch_to_asm+0x34/0x70
[  429.331162]  ? __switch_to_asm+0x40/0x70
[  429.335216]  ? __switch_to_asm+0x34/0x70
[  429.339271]  ? __switch_to_asm+0x40/0x70
[  429.343332]  ? __switch_to_asm+0x34/0x70
[  429.347390]  ? __switch_to_asm+0x40/0x70
[  429.351452]  ? __switch_to_asm+0x34/0x70
[  429.355509]  ? __switch_to_asm+0x34/0x70
[  429.359567]  ? __switch_to_asm+0x40/0x70
[  429.363620]  ? __switch_to_asm+0x34/0x70
[  429.367777]  bpf_clone_redirect+0xb9/0x490
[  429.372013]  ? __schedule+0x8d7/0x21d0
[  429.375907]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  429.380925]  ? __sched_text_start+0x8/0x8
[  429.385085]  ? retint_kernel+0x2d/0x2d
[  429.388980]  ? find_held_lock+0x36/0x1c0
[  429.393046]  ? lock_acquire+0x1ed/0x520
[  429.397018]  ? bpf_test_run+0x3cb/0x780
[  429.400989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.406633]  ? check_preemption_disabled+0x48/0x280
[  429.411651]  ? kasan_check_read+0x11/0x20
[  429.415795]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.421067]  ? rcu_softirq_qs+0x20/0x20
[  429.425042]  ? preempt_schedule+0x4d/0x60
[  429.429195]  ? ___preempt_schedule+0x16/0x18
[  429.433608]  ? bpf_test_run+0x25d/0x780
[  429.437591]  ? netlink_diag_dump+0x2a0/0x2a0
[  429.441998]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.447533]  ? bpf_test_init.isra.10+0x70/0x100
[  429.452207]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  429.456968]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  429.461808]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  429.467344]  ? fput+0x130/0x1a0
[  429.470706]  ? __bpf_prog_get+0x9b/0x290
[  429.474779]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  429.479620]  ? bpf_prog_test_run+0x130/0x1a0
[  429.484033]  ? __x64_sys_bpf+0x3d8/0x520
[  429.488198]  ? bpf_prog_get+0x20/0x20
[  429.492014]  ? do_syscall_64+0x1b9/0x820
[  429.496086]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  429.501450]  ? syscall_return_slowpath+0x5e0/0x5e0
[  429.506377]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.511233]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.516250]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  429.521284]  ? prepare_exit_to_usermode+0x291/0x3b0
[  429.526308]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.531155]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  429.536672] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  429.536743] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  429.543687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  429.543691] Call Trace:
[  429.543697]  <IRQ>
[  429.543722]  dump_stack+0x244/0x39d
[  429.543742]  ? dump_stack_print_info.cold.1+0x20/0x20
[  429.550299] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  429.559562]  warn_alloc.cold.116+0xb7/0x1bd
[  429.562128] syz-executor2 cpuset=syz2 mems_allowed=0
[  429.564270]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  429.597839]  ? lock_downgrade+0x900/0x900
[  429.601990]  ? trace_hardirqs_off+0xb8/0x310
[  429.606422]  ? trace_hardirqs_off+0xb8/0x310
[  429.610835]  __alloc_pages_slowpath+0x26e8/0x2e10
[  429.615709]  ? warn_alloc+0x120/0x120
[  429.619512]  ? print_usage_bug+0xc0/0xc0
[  429.623689]  ? warn_alloc+0x120/0x120
[  429.627513]  ? warn_alloc+0x120/0x120
[  429.631323]  ? print_usage_bug+0xc0/0xc0
[  429.635388]  ? kvm_clock_read+0x18/0x30
[  429.639409]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  429.644424]  ? print_usage_bug+0xc0/0xc0
[  429.648486]  ? __lock_acquire+0x62f/0x4c20
[  429.652728]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.658266]  ? should_fail+0x22d/0xd01
[  429.662148]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.667427]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.672531]  ? __lock_acquire+0x62f/0x4c20
[  429.676768]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.681864]  ? __lock_acquire+0x62f/0x4c20
[  429.686097]  ? should_fail+0x22d/0xd01
[  429.689975]  ? rcu_irq_exit+0x1a2/0x390
[  429.693957]  ? mark_held_locks+0x130/0x130
[  429.698210]  ? mark_held_locks+0x130/0x130
[  429.702443]  ? mark_held_locks+0xc7/0x130
[  429.706586]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  429.711598]  ? zap_class+0x640/0x640
[  429.715307]  ? print_usage_bug+0xc0/0xc0
[  429.719370]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.724907]  ? check_preemption_disabled+0x48/0x280
[  429.730014]  ? __lock_is_held+0xb5/0x140
[  429.734077]  __alloc_pages_nodemask+0xa80/0xde0
[  429.738759]  ? zap_class+0x640/0x640
[  429.742478]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  429.747522]  ? find_held_lock+0x36/0x1c0
[  429.751594]  ? ____cache_alloc_node+0x1c7/0x1e0
[  429.756264]  ? lock_downgrade+0x900/0x900
[  429.760437]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.765977]  cache_grow_begin+0xa5/0x8c0
[  429.770034]  ? do_raw_spin_unlock+0xa7/0x330
[  429.774445]  fallback_alloc+0x204/0x2e0
[  429.778421]  ____cache_alloc_node+0x1c7/0x1e0
[  429.782921]  kmem_cache_alloc_node+0xe3/0x730
[  429.787418]  ? ipv6_get_ifaddr+0x42e/0x620
[  429.791663]  __alloc_skb+0x119/0x770
[  429.795376]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.800650]  ? netdev_alloc_frag+0x1f0/0x1f0
[  429.805070]  ? lock_downgrade+0x900/0x900
[  429.809231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.814806]  ? refcount_sub_and_test_checked+0x203/0x310
[  429.820258]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  429.825716]  ? addrconf_rs_timer+0x690/0x690
[  429.830144]  ndisc_alloc_skb+0x144/0x340
[  429.834205]  ndisc_send_rs+0x331/0x6e0
[  429.838098]  addrconf_rs_timer+0x314/0x690
[  429.842348]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.846590]  call_timer_fn+0x272/0x920
[  429.850471]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.854716]  ? process_timeout+0x40/0x40
[  429.858786]  ? mark_held_locks+0xc7/0x130
[  429.862933]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.867423]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.871922]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.876160]  ? lockdep_hardirqs_on+0x296/0x5b0
[  429.880750]  ? trace_hardirqs_on+0xbd/0x310
[  429.885089]  ? kasan_check_read+0x11/0x20
[  429.889234]  ? __run_timers+0x7da/0xc70
[  429.893211]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.898322]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.902564]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.906831]  __run_timers+0x7e5/0xc70
[  429.910642]  ? timer_fixup_init+0x70/0x70
[  429.914801]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  429.919819]  ? zap_class+0x640/0x640
[  429.923624]  ? print_usage_bug+0xc0/0xc0
[  429.927773]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  429.932972]  ? find_held_lock+0x36/0x1c0
[  429.937051]  ? zap_class+0x640/0x640
[  429.940787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.946327]  ? check_preemption_disabled+0x48/0x280
[  429.951441]  ? __lock_is_held+0xb5/0x140
[  429.955503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.961043]  ? check_preemption_disabled+0x48/0x280
[  429.966081]  run_timer_softirq+0x52/0xb0
[  429.970155]  ? rcu_read_lock_sched_held+0x14f/0x180
[  429.975177]  __do_softirq+0x308/0xb7e
[  429.978998]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  429.983490]  ? lock_downgrade+0x900/0x900
[  429.987643]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  429.992757]  ? pvclock_read_flags+0x160/0x160
[  429.997255]  ? lapic_next_event+0x5a/0x90
[  430.001406]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.006951]  ? kvm_clock_read+0x18/0x30
[  430.010936]  ? kvm_sched_clock_read+0x9/0x20
[  430.015345]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.020887]  ? check_preemption_disabled+0x48/0x280
[  430.025912]  irq_exit+0x17f/0x1c0
[  430.029369]  smp_apic_timer_interrupt+0x1cb/0x760
[  430.034236]  ? smp_call_function_single_interrupt+0x650/0x650
[  430.040123]  ? interrupt_entry+0xb5/0xc0
[  430.044187]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.049205]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.054222]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.059064]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.064091]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.069103]  ? task_prio+0x50/0x50
[  430.072675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.078209]  ? check_preemption_disabled+0x48/0x280
[  430.083312]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.088176]  apic_timer_interrupt+0xf/0x20
[  430.092487]  </IRQ>
[  430.094745] RIP: 0010:dump_stack+0x358/0x39d
[  430.099151] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  430.118071] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  430.125782] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  430.133050] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  430.140409] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  430.147689] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  430.154956] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  430.162249]  ? dump_stack+0x34f/0x39d
[  430.166061]  ? dump_stack_print_info.cold.1+0x20/0x20
[  430.171254]  ? mark_held_locks+0x130/0x130
[  430.175490]  ? mark_held_locks+0x130/0x130
[  430.179755]  dump_header+0x27b/0xf72
[  430.183476]  ? pagefault_out_of_memory+0x197/0x197
[  430.188410]  ? __lock_acquire+0x62f/0x4c20
[  430.192657]  ? percpu_ref_get_many+0x240/0x240
[  430.197245]  ? print_usage_bug+0xc0/0xc0
[  430.201313]  ? zap_class+0x640/0x640
[  430.205031]  ? print_usage_bug+0xc0/0xc0
[  430.209105]  ? print_usage_bug+0xc0/0xc0
[  430.213165]  ? zap_class+0x640/0x640
[  430.216887]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.222440]  ? find_held_lock+0x36/0x1c0
[  430.226510]  ? mark_held_locks+0xc7/0x130
[  430.230667]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  430.235770]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  430.240874]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  430.245459]  ? trace_hardirqs_on+0xbd/0x310
[  430.249787]  ? kasan_check_read+0x11/0x20
[  430.253936]  ? ___ratelimit+0x3b4/0x672
[  430.257915]  ? trace_hardirqs_off_caller+0x310/0x310
[  430.263022]  ? trace_hardirqs_on+0x310/0x310
[  430.267517]  ? lock_downgrade+0x900/0x900
[  430.271682]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  430.276791]  ? ___ratelimit+0x3b9/0x672
[  430.280779]  ? idr_get_free+0xf70/0xf70
[  430.284771]  ? find_held_lock+0x36/0x1c0
[  430.288841]  oom_kill_process.cold.27+0x10/0x903
[  430.293599]  ? zap_class+0x640/0x640
[  430.297309]  ? check_preemption_disabled+0x48/0x280
[  430.302331]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.307280]  ? kasan_check_read+0x11/0x20
[  430.311517]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.316794]  ? oom_evaluate_task+0x540/0x540
[  430.321202]  ? find_held_lock+0x36/0x1c0
[  430.325268]  ? out_of_memory+0x974/0x1430
[  430.329538]  ? lock_downgrade+0x900/0x900
[  430.333683]  ? check_preemption_disabled+0x48/0x280
[  430.338706]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.343721]  ? kasan_check_read+0x11/0x20
[  430.347878]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.353153]  ? rcu_softirq_qs+0x20/0x20
[  430.357143]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.362678]  ? oom_evaluate_task+0x302/0x540
[  430.367098]  out_of_memory+0xa84/0x1430
[  430.371091]  ? oom_killer_disable+0x3a0/0x3a0
[  430.375588]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  430.380546]  ? __ww_mutex_check_waiters+0x160/0x160
[  430.385569]  __alloc_pages_slowpath+0x2354/0x2e10
[  430.390438]  ? warn_alloc+0x120/0x120
[  430.394250]  ? mark_held_locks+0x130/0x130
[  430.398492]  ? find_get_entry+0xaae/0x1120
[  430.402737]  ? filemap_map_pages+0x1a20/0x1a20
[  430.407341]  ? zap_class+0x640/0x640
[  430.411060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.416603]  ? check_preemption_disabled+0x48/0x280
[  430.421647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.427185]  ? should_fail+0x22d/0xd01
[  430.431081]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  430.436184]  ? zap_class+0x640/0x640
[  430.439930]  ? __lock_is_held+0xb5/0x140
[  430.443998]  ? mark_held_locks+0x130/0x130
[  430.448237]  ? lock_release+0xa00/0xa00
[  430.452213]  ? perf_trace_sched_process_exec+0x860/0x860
[  430.457668]  ? xa_load+0x2ba/0x460
[  430.461215]  ? lock_downgrade+0x900/0x900
[  430.465366]  ? __might_sleep+0x95/0x190
[  430.469365]  __alloc_pages_nodemask+0xa80/0xde0
[  430.474064]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  430.479078]  ? __page_cache_alloc+0x191/0x5c0
[  430.483574]  ? xa_load+0x2e1/0x460
[  430.487112]  ? xa_clear_mark+0x40/0x40
[  430.491005]  ? zap_class+0x640/0x640
[  430.494728]  ? zap_class+0x640/0x640
[  430.498459]  ? zap_class+0x640/0x640
[  430.502177]  ? __do_page_cache_readahead+0x663/0x810
[  430.507296]  ? find_held_lock+0x36/0x1c0
[  430.511363]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  430.516910]  alloc_pages_current+0x173/0x350
[  430.521325]  __page_cache_alloc+0x38c/0x5c0
[  430.525651]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.530583]  ? kasan_check_read+0x11/0x20
[  430.534727]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.540011]  ? generic_perform_write+0x6a0/0x6a0
[  430.544768]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.550307]  ? check_preemption_disabled+0x48/0x280
[  430.555415]  filemap_fault+0x1595/0x25f0
[  430.559485]  ? __lock_page_or_retry+0xa00/0xa00
[  430.564170]  ? mark_held_locks+0x130/0x130
[  430.568415]  ? filemap_map_pages+0xd6b/0x1a20
[  430.572915]  ? lock_downgrade+0x900/0x900
[  430.577060]  ? check_preemption_disabled+0x48/0x280
[  430.582073]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.587000]  ? kasan_check_read+0x11/0x20
[  430.591151]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.596515]  ? rcu_softirq_qs+0x20/0x20
[  430.600495]  ? filemap_map_pages+0xd92/0x1a20
[  430.605003]  ? find_get_entries_tag+0x1400/0x1400
[  430.609840]  ? find_held_lock+0x36/0x1c0
[  430.613916]  ? lock_acquire+0x1ed/0x520
[  430.617889]  ? ext4_filemap_fault+0x7a/0xad
[  430.622211]  ? lock_release+0xa00/0xa00
[  430.626202]  ? perf_trace_sched_process_exec+0x860/0x860
[  430.631663]  ? print_usage_bug+0xc0/0xc0
[  430.635743]  ? down_read+0x8d/0x120
[  430.639383]  ? ext4_filemap_fault+0x7a/0xad
[  430.643700]  ? __down_interruptible+0x700/0x700
[  430.648487]  ? find_held_lock+0x36/0x1c0
[  430.652547]  ext4_filemap_fault+0x82/0xad
[  430.656698]  __do_fault+0x100/0x6b0
[  430.660327]  ? lock_downgrade+0x900/0x900
[  430.664470]  ? pmd_devmap_trans_unstable+0x220/0x220
[  430.669576]  ? kasan_check_read+0x11/0x20
[  430.673723]  ? do_raw_spin_unlock+0xa7/0x330
[  430.678125]  ? do_raw_spin_trylock+0x270/0x270
[  430.682722]  __handle_mm_fault+0x3ea0/0x5be0
[  430.687125]  ? perf_trace_lock+0x7a0/0x7a0
[  430.691375]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  430.696219]  ? __switch_to_asm+0x34/0x70
[  430.700275]  ? __switch_to_asm+0x34/0x70
[  430.704342]  ? zap_class+0x640/0x640
[  430.708144]  ? zap_class+0x640/0x640
[  430.711853]  ? __x64_sys_futex+0x53e/0x6a0
[  430.716088]  ? find_held_lock+0x36/0x1c0
[  430.720152]  ? handle_mm_fault+0x42a/0xc70
[  430.724402]  ? lock_downgrade+0x900/0x900
[  430.728545]  ? check_preemption_disabled+0x48/0x280
[  430.733559]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.738481]  ? kasan_check_read+0x11/0x20
[  430.742627]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.747899]  ? rcu_softirq_qs+0x20/0x20
[  430.751872]  ? trace_hardirqs_off_caller+0x310/0x310
[  430.756970]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.762503]  ? check_preemption_disabled+0x48/0x280
[  430.767616]  handle_mm_fault+0x54f/0xc70
[  430.771681]  ? __handle_mm_fault+0x5be0/0x5be0
[  430.776262]  ? find_vma+0x34/0x190
[  430.779811]  __do_page_fault+0x5e8/0xe60
[  430.783974]  ? trace_hardirqs_off+0xb8/0x310
[  430.788393]  do_page_fault+0xf2/0x7e0
[  430.792206]  ? vmalloc_sync_all+0x30/0x30
[  430.796350]  ? error_entry+0x70/0xd0
[  430.800062]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.805074]  ? trace_hardirqs_on_caller+0xc0/0x310
[  430.810000]  ? syscall_return_slowpath+0x5e0/0x5e0
[  430.814927]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.819771]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.824784]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  430.830236]  ? prepare_exit_to_usermode+0x291/0x3b0
[  430.835247]  ? page_fault+0x8/0x30
[  430.838788]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.843640]  ? page_fault+0x8/0x30
[  430.847189]  page_fault+0x1e/0x30
[  430.850640] RIP: 0033:0x404068
[  430.853846] Code: Bad RIP value.
[  430.857207] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  430.862567] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  430.869837] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  430.877101] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  430.884366] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  430.892120] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  430.899413] warn_alloc_show_mem: 1 callbacks suppressed
[  430.899422] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  430.899424] Mem-Info:
[  430.899455] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  430.899455]  active_file:13 inactive_file:13 isolated_file:0
[  430.899455]  unevictable:0 dirty:0 writeback:0 unstable:0
[  430.899455]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  430.899455]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  430.899455]  free:13747 free_pcp:348 free_cma:0
[  430.904788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  430.912147] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  430.914540] Call Trace:
[  430.947667] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  430.957007]  <IRQ>
[  430.984832] lowmem_reserve[]: 0 2818 6321 6321
[  430.987415]  dump_stack+0x244/0x39d
[  431.013490] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  431.015661]  ? dump_stack_print_info.cold.1+0x20/0x20
[  431.020212] lowmem_reserve[]: 0 0 3503 3503
[  431.023850]  warn_alloc.cold.116+0xb7/0x1bd
[  431.051310] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  431.056491]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  431.061153] lowmem_reserve[]: 0 0 0 0
[  431.065492]  ? lock_downgrade+0x900/0x900
[  431.094605] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  431.099447]  ? trace_hardirqs_off+0xb8/0x310
[  431.103214] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  431.107358]  ? trace_hardirqs_off+0xb8/0x310
[  431.120851] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  431.125258]  __alloc_pages_slowpath+0x26e8/0x2e10
[  431.140137] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  431.140150] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  431.144658]  ? warn_alloc+0x120/0x120
[  431.159870] 4484 total pagecache pages
[  431.164706]  ? print_usage_bug+0xc0/0xc0
[  431.173522] 0 pages in swap cache
[  431.182074]  ? warn_alloc+0x120/0x120
[  431.185850] Swap cache stats: add 0, delete 0, find 0/0
[  431.189723]  ? warn_alloc+0x120/0x120
[  431.193786] Free swap  = 0kB
[  431.197231]  ? print_usage_bug+0xc0/0xc0
[  431.201024] Total swap = 0kB
[  431.206390]  ? kvm_clock_read+0x18/0x30
[  431.210164] 1965979 pages RAM
[  431.213170]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  431.217201] 0 pages HighMem/MovableOnly
[  431.220207]  ? print_usage_bug+0xc0/0xc0
[  431.224156] 342854 pages reserved
[  431.227252]  ? __lock_acquire+0x62f/0x4c20
[  431.232237] 0 pages cma reserved
[  431.236201]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.240295] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  431.243684]  ? should_fail+0x22d/0xd01
[  431.247963] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  431.251242]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.256754] syz-fuzzer cpuset=/ mems_allowed=0
[  431.263239]  ? __lock_acquire+0x62f/0x4c20
[  431.291306]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.296407]  ? __lock_acquire+0x62f/0x4c20
[  431.300635]  ? should_fail+0x22d/0xd01
[  431.304533]  ? mark_held_locks+0x130/0x130
[  431.308792]  ? mark_held_locks+0x130/0x130
[  431.313029]  ? zap_class+0x640/0x640
[  431.316743]  ? print_usage_bug+0xc0/0xc0
[  431.320805]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.326341]  ? check_preemption_disabled+0x48/0x280
[  431.331363]  ? __lock_is_held+0xb5/0x140
[  431.335428]  __alloc_pages_nodemask+0xa80/0xde0
[  431.340092]  ? zap_class+0x640/0x640
[  431.343817]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  431.348843]  ? find_held_lock+0x36/0x1c0
[  431.352911]  ? ____cache_alloc_node+0x1c7/0x1e0
[  431.357668]  ? lock_downgrade+0x900/0x900
[  431.361827]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.367363]  cache_grow_begin+0xa5/0x8c0
[  431.371422]  ? do_raw_spin_unlock+0xa7/0x330
[  431.375835]  fallback_alloc+0x204/0x2e0
[  431.379811]  ____cache_alloc_node+0x1c7/0x1e0
[  431.384312]  kmem_cache_alloc_node+0xe3/0x730
[  431.388835]  ? ipv6_get_ifaddr+0x42e/0x620
[  431.393079]  __alloc_skb+0x119/0x770
[  431.396792]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.402084]  ? netdev_alloc_frag+0x1f0/0x1f0
[  431.406492]  ? lock_downgrade+0x900/0x900
[  431.410642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.416267]  ? refcount_sub_and_test_checked+0x203/0x310
[  431.421720]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  431.427167]  ? addrconf_rs_timer+0x690/0x690
[  431.431591]  ndisc_alloc_skb+0x144/0x340
[  431.435654]  ndisc_send_rs+0x331/0x6e0
[  431.439545]  addrconf_rs_timer+0x314/0x690
[  431.443915]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.448156]  call_timer_fn+0x272/0x920
[  431.452044]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.456278]  ? process_timeout+0x40/0x40
[  431.460341]  ? __run_timers+0x7da/0xc70
[  431.464312]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.468805]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.473303]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.477534]  ? lockdep_hardirqs_on+0x296/0x5b0
[  431.482126]  ? trace_hardirqs_on+0xbd/0x310
[  431.486442]  ? kasan_check_read+0x11/0x20
[  431.490585]  ? __run_timers+0x7da/0xc70
[  431.494567]  ? trace_hardirqs_off_caller+0x310/0x310
[  431.499699]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.503930]  __run_timers+0x7e5/0xc70
[  431.507739]  ? timer_fixup_init+0x70/0x70
[  431.511885]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  431.516916]  ? zap_class+0x640/0x640
[  431.520630]  ? enqueue_hrtimer+0x1a5/0x560
[  431.524866]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  431.530056]  ? find_held_lock+0x36/0x1c0
[  431.534121]  ? zap_class+0x640/0x640
[  431.537835]  ? pvclock_read_flags+0x160/0x160
[  431.542327]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.547863]  ? check_preemption_disabled+0x48/0x280
[  431.552889]  ? __lock_is_held+0xb5/0x140
[  431.556952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.562490]  ? check_preemption_disabled+0x48/0x280
[  431.567509]  run_timer_softirq+0x52/0xb0
[  431.571578]  ? rcu_read_lock_sched_held+0x14f/0x180
[  431.576595]  __do_softirq+0x308/0xb7e
[  431.580397]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  431.584889]  ? lock_downgrade+0x900/0x900
[  431.589040]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  431.594162]  ? pvclock_read_flags+0x160/0x160
[  431.598658]  ? lapic_next_event+0x5a/0x90
[  431.602805]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.608355]  ? kvm_clock_read+0x18/0x30
[  431.612325]  ? kvm_sched_clock_read+0x9/0x20
[  431.616734]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.622269]  ? check_preemption_disabled+0x48/0x280
[  431.627376]  irq_exit+0x17f/0x1c0
[  431.630825]  smp_apic_timer_interrupt+0x1cb/0x760
[  431.635673]  ? smp_reschedule_interrupt+0x109/0x650
[  431.640690]  ? smp_call_function_single_interrupt+0x650/0x650
[  431.646572]  ? interrupt_entry+0xb5/0xc0
[  431.650630]  ? trace_hardirqs_off_caller+0xbb/0x310
[  431.655644]  ? trace_hardirqs_off_caller+0xbb/0x310
[  431.660657]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.665513]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.670543]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.675572]  ? task_prio+0x50/0x50
[  431.679111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.684642]  ? check_preemption_disabled+0x48/0x280
[  431.689748]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.694598]  apic_timer_interrupt+0xf/0x20
[  431.698823]  </IRQ>
[  431.701061] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  431.706105] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  431.724999] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  431.732703] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  431.739968] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  431.747230] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  431.754492] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  431.761760] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  431.769064]  skb_clone+0x1bb/0x500
[  431.772628]  ? finish_task_switch+0x2f4/0x910
[  431.777126]  ? skb_split+0x11e0/0x11e0
[  431.781012]  ? preempt_notifier_register+0x200/0x200
[  431.786110]  ? __switch_to_asm+0x34/0x70
[  431.790167]  ? __switch_to_asm+0x34/0x70
[  431.794223]  ? __switch_to_asm+0x40/0x70
[  431.798282]  ? __switch_to_asm+0x34/0x70
[  431.802349]  ? __switch_to_asm+0x40/0x70
[  431.806405]  ? __switch_to_asm+0x34/0x70
[  431.810458]  ? __switch_to_asm+0x40/0x70
[  431.814541]  ? __switch_to_asm+0x34/0x70
[  431.818596]  ? __switch_to_asm+0x34/0x70
[  431.822648]  ? __switch_to_asm+0x40/0x70
[  431.826706]  ? __switch_to_asm+0x34/0x70
[  431.830767]  bpf_clone_redirect+0xb9/0x490
[  431.835001]  ? __schedule+0x8d7/0x21d0
[  431.838890]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  431.843915]  ? __sched_text_start+0x8/0x8
[  431.848059]  ? retint_kernel+0x2d/0x2d
[  431.851958]  ? find_held_lock+0x36/0x1c0
[  431.856023]  ? lock_acquire+0x1ed/0x520
[  431.859995]  ? bpf_test_run+0x3cb/0x780
[  431.863965]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.869499]  ? check_preemption_disabled+0x48/0x280
[  431.874531]  ? kasan_check_read+0x11/0x20
[  431.878693]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.883969]  ? rcu_softirq_qs+0x20/0x20
[  431.887941]  ? preempt_schedule+0x4d/0x60
[  431.892098]  ? ___preempt_schedule+0x16/0x18
[  431.896523]  ? bpf_test_run+0x25d/0x780
[  431.900508]  ? netlink_diag_dump+0x2a0/0x2a0
[  431.904929]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.910475]  ? bpf_test_init.isra.10+0x70/0x100
[  431.915162]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  431.919927]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  431.924768]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  431.930317]  ? fput+0x130/0x1a0
[  431.933592]  ? __bpf_prog_get+0x9b/0x290
[  431.937655]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  431.942522]  ? bpf_prog_test_run+0x130/0x1a0
[  431.946935]  ? __x64_sys_bpf+0x3d8/0x520
[  431.950991]  ? bpf_prog_get+0x20/0x20
[  431.954811]  ? do_syscall_64+0x1b9/0x820
[  431.958871]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  431.964233]  ? syscall_return_slowpath+0x5e0/0x5e0
[  431.969161]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.974002]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.979014]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  431.984027]  ? prepare_exit_to_usermode+0x291/0x3b0
[  431.989047]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.993922]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  431.999304] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  431.999337] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[  432.006318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  432.006325] Call Trace:
[  432.012541] rcu: 	(detected by 1, t=10607 jiffies, g=30945, q=2)
[  432.021882]  <IRQ>
[  432.024455] rcu: All QSes seen, last rcu_preempt kthread activity 10607 (4294980341-4294969734), jiffies_till_next_fqs=1, root ->qsmask 0x0
[  432.030581]  dump_stack+0x244/0x39d
[  432.032704] syz-executor2   R  running task    20504 15607   5978 0x8010000c
[  432.045434]  ? dump_stack_print_info.cold.1+0x20/0x20
[  432.049032] Call Trace:
[  432.056223]  warn_alloc.cold.116+0xb7/0x1bd
[  432.061377]  <IRQ>
[  432.063952]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  432.068354]  sched_show_task.cold.84+0x2b6/0x30a
[  432.070492]  ? lock_downgrade+0x900/0x900
[  432.075321]  ? can_nice.part.74+0x20/0x20
[  432.080065]  ? trace_hardirqs_off+0xb8/0x310
[  432.084197]  ? vprintk_default+0x28/0x30
[  432.088329]  ? trace_hardirqs_off+0xb8/0x310
[  432.092717]  ? vprintk_func+0x85/0x181
[  432.096766]  __alloc_pages_slowpath+0x26e8/0x2e10
[  432.101163]  ? vprintk_func+0x85/0x181
[  432.105073]  ? warn_alloc+0x120/0x120
[  432.109894]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  432.113765]  ? print_usage_bug+0xc0/0xc0
[  432.117546]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  432.122285]  ? warn_alloc+0x120/0x120
[  432.126330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.131069]  ? warn_alloc+0x120/0x120
[  432.134856]  print_other_cpu_stall.cold.66+0x7dd/0x8bb
[  432.140363]  ? print_usage_bug+0xc0/0xc0
[  432.140398]  ? kvm_clock_read+0x18/0x30
[  432.144190]  ? print_usage_bug+0xc0/0xc0
[  432.149450]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  432.153502]  ? rcu_qs+0x110/0x110
[  432.157462]  ? print_usage_bug+0xc0/0xc0
[  432.161524]  ? zap_class+0x640/0x640
[  432.166527]  ? __lock_acquire+0x62f/0x4c20
[  432.169962]  ? print_usage_bug+0xc0/0xc0
[  432.174008]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.177703]  ? kasan_check_read+0x11/0x20
[  432.181923]  ? should_fail+0x22d/0xd01
[  432.185964]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.191479]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.195613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.199594]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.205111]  ? do_trace_rcu_torture_read+0x10/0x10
[  432.210365]  ? __lock_acquire+0x62f/0x4c20
[  432.215894]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  432.220979]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.225892]  ? __lock_is_held+0xb5/0x140
[  432.230327]  ? __lock_acquire+0x62f/0x4c20
[  432.235600]  ? __rcu_read_lock+0x50/0x50
[  432.240803]  ? should_fail+0x22d/0xd01
[  432.244848]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.249063]  ? rcu_irq_exit+0x1a2/0x390
[  432.253106]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.256984]  ? mark_held_locks+0x130/0x130
[  432.262505]  ? check_preemption_disabled+0x48/0x280
[  432.266565]  ? mark_held_locks+0x130/0x130
[  432.272086]  rcu_check_callbacks+0xfd7/0x13f0
[  432.276300]  ? mark_held_locks+0xc7/0x130
[  432.281303]  ? rcutree_dead_cpu+0x10/0x10
[  432.285520]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  432.289997]  ? lock_downgrade+0x900/0x900
[  432.294127]  ? zap_class+0x640/0x640
[  432.298257]  ? lock_release+0x940/0xa00
[  432.303265]  ? print_usage_bug+0xc0/0xc0
[  432.307400]  ? zap_class+0x640/0x640
[  432.311108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.315061]  ? mark_held_locks+0x130/0x130
[  432.319106]  ? check_preemption_disabled+0x48/0x280
[  432.322800]  ? zap_class+0x640/0x640
[  432.328336]  ? __lock_is_held+0xb5/0x140
[  432.332543]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.332652]  ? pvclock_gtod_notify+0x2e3/0x3e0
[  432.337565]  __alloc_pages_nodemask+0xa80/0xde0
[  432.341373]  ? kvm_set_tsc_khz+0x540/0x540
[  432.345428]  ? zap_class+0x640/0x640
[  432.350947]  ? warn_alloc.cold.116+0xd1/0x1bd
[  432.355516]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  432.360176]  ? find_held_lock+0x36/0x1c0
[  432.364395]  ? find_held_lock+0x36/0x1c0
[  432.368091]  ? zap_class+0x640/0x640
[  432.372571]  ? ____cache_alloc_node+0x1c7/0x1e0
[  432.377565]  ? timekeeping_advance+0x3cc/0xc00
[  432.381603]  ? lock_downgrade+0x900/0x900
[  432.385645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.389343]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.393991]  ? check_preemption_disabled+0x48/0x280
[  432.398565]  cache_grow_begin+0xa5/0x8c0
[  432.402698]  ? trace_hardirqs_off+0xb8/0x310
[  432.408210]  ? do_raw_spin_unlock+0xa7/0x330
[  432.413726]  ? __lock_is_held+0xb5/0x140
[  432.418731]  fallback_alloc+0x204/0x2e0
[  432.422780]  ? trace_hardirqs_on+0x310/0x310
[  432.427280]  ____cache_alloc_node+0x1c7/0x1e0
[  432.431668]  ? check_preemption_disabled+0x48/0x280
[  432.435709]  kmem_cache_alloc_node+0xe3/0x730
[  432.439689]  ? raise_softirq+0x199/0x420
[  432.444114]  ? ipv6_get_ifaddr+0x42e/0x620
[  432.448586]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  432.453610]  __alloc_skb+0x119/0x770
[  432.458085]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.462128]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.466346]  ? check_preemption_disabled+0x48/0x280
[  432.471022]  ? netdev_alloc_frag+0x1f0/0x1f0
[  432.474732]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  432.480255]  ? lock_downgrade+0x900/0x900
[  432.485508]  ? hrtimer_run_queues+0x9a/0x400
[  432.490508]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.494930]  ? run_local_timers+0x19b/0x230
[  432.500533]  ? refcount_sub_and_test_checked+0x203/0x310
[  432.504661]  ? timer_clear_idle+0x90/0x90
[  432.509049]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  432.514581]  ? debug_smp_processor_id+0x1c/0x20
[  432.518881]  ? addrconf_rs_timer+0x690/0x690
[  432.524413]  ? irqtime_account_process_tick.isra.6+0x114/0x490
[  432.528559]  ndisc_alloc_skb+0x144/0x340
[  432.534002]  ? account_process_tick+0x282/0x350
[  432.538650]  ndisc_send_rs+0x331/0x6e0
[  432.543045]  update_process_times+0x2d/0x70
[  432.548995]  addrconf_rs_timer+0x314/0x690
[  432.553041]  tick_sched_handle+0x9f/0x180
[  432.557699]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.561568]  tick_sched_timer+0x45/0x130
[  432.565885]  call_timer_fn+0x272/0x920
[  432.570210]  __hrtimer_run_queues+0x41c/0x10d0
[  432.574352]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.578583]  ? tick_sched_do_timer+0x1a0/0x1a0
[  432.582633]  ? process_timeout+0x40/0x40
[  432.586505]  ? hrtimer_start_range_ns+0xe00/0xe00
[  432.591166]  ? mark_held_locks+0xc7/0x130
[  432.595496]  ? pvclock_read_flags+0x160/0x160
[  432.600058]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.604101]  ? trace_hardirqs_on+0x310/0x310
[  432.608926]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.613062]  ? kvm_clock_read+0x18/0x30
[  432.617535]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.622024]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  432.626420]  ? lockdep_hardirqs_on+0x296/0x5b0
[  432.630901]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  432.634862]  ? trace_hardirqs_on+0xbd/0x310
[  432.639166]  ? do_timer+0x50/0x50
[  432.644156]  ? kasan_check_read+0x11/0x20
[  432.644170]  ? __run_timers+0x7da/0xc70
[  432.648732]  ? rwlock_bug.part.2+0x90/0x90
[  432.654080]  ? trace_hardirqs_off_caller+0x310/0x310
[  432.658378]  ? trace_hardirqs_on+0x310/0x310
[  432.661814]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.665987]  ? rcu_softirq_qs+0x20/0x20
[  432.669965]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.674188]  hrtimer_interrupt+0x313/0x780
[  432.679283]  __run_timers+0x7e5/0xc70
[  432.683774]  smp_apic_timer_interrupt+0x1a1/0x760
[  432.687982]  ? timer_fixup_init+0x70/0x70
[  432.691934]  ? smp_call_function_single_interrupt+0x650/0x650
[  432.696151]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  432.700360]  ? interrupt_entry+0xb5/0xc0
[  432.704142]  ? zap_class+0x640/0x640
[  432.708966]  ? trace_hardirqs_off_caller+0xbb/0x310
[  432.713097]  ? print_usage_bug+0xc0/0xc0
[  432.719069]  ? ____cache_alloc_node+0x1c7/0x1e0
[  432.724063]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  432.728110]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.731809]  ? find_held_lock+0x36/0x1c0
[  432.736805]  ? trace_hardirqs_on_caller+0x310/0x310
[  432.740854]  ? zap_class+0x640/0x640
[  432.745515]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.750686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.755512]  apic_timer_interrupt+0xf/0x20
[  432.759555]  ? check_preemption_disabled+0x48/0x280
[  432.764571] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  432.768287]  ? __lock_is_held+0xb5/0x140
[  432.773105] Code: 3f 7e 0f 85 32 ff ff ff e8 e5 1c 3e ff e9 28 ff ff ff e8 4c 52 c3 ff 48 83 3d 64 9b 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  432.778622]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.782929] RSP: 0000:ffff8801daf07450 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  432.787931]  ? check_preemption_disabled+0x48/0x280
[  432.793284] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff100372aa521
[  432.797345]  run_timer_softirq+0x52/0xb0
[  432.816318] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
[  432.821844]  ? rcu_read_lock_sched_held+0x14f/0x180
[  432.829528] RBP: ffff8801daf074c0 R08: ffff8801b9552908 R09: 0000000000000002
[  432.834529]  __do_softirq+0x308/0xb7e
[  432.841779] R10: 0000000000000000 R11: ffff8801b9552040 R12: ffff8801d9a95d80
[  432.845848]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  432.853093] R13: ffff8801d9a95d80 R14: 0000000000000000 R15: 0000000000000286
[  432.858093]  ? lock_downgrade+0x900/0x900
[  432.865343]  ? apic_timer_interrupt+0xa/0x20
[  432.869127]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  432.876410]  ? ipv6_get_ifaddr+0x42e/0x620
[  432.880876]  ? pvclock_read_flags+0x160/0x160
[  432.888133]  __alloc_skb+0x119/0x770
[  432.892694]  ? lapic_next_event+0x5a/0x90
[  432.897099]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  432.902179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.906412]  ? netdev_alloc_frag+0x1f0/0x1f0
[  432.910888]  ? kvm_clock_read+0x18/0x30
[  432.914582]  ? lock_downgrade+0x900/0x900
[  432.918730]  ? kvm_sched_clock_read+0x9/0x20
[  432.924009]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.929519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.933911]  ? refcount_sub_and_test_checked+0x203/0x310
[  432.937864]  ? check_preemption_disabled+0x48/0x280
[  432.942254]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  432.946646]  irq_exit+0x17f/0x1c0
[  432.952161]  ? addrconf_rs_timer+0x690/0x690
[  432.957768]  smp_apic_timer_interrupt+0x1cb/0x760
[  432.963224]  ndisc_alloc_skb+0x144/0x340
[  432.968226]  ? smp_call_function_single_interrupt+0x650/0x650
[  432.973769]  ndisc_send_rs+0x331/0x6e0
[  432.977200]  ? interrupt_entry+0xb5/0xc0
[  432.981607]  addrconf_rs_timer+0x314/0x690
[  432.986437]  ? trace_hardirqs_off_caller+0xbb/0x310
[  432.990491]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.996357]  ? trace_hardirqs_off_caller+0xbb/0x310
[  433.000243]  call_timer_fn+0x272/0x920
[  433.004287]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.008585]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.013595]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.017810]  ? process_timeout+0x40/0x40
[  433.022810]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.026782]  ? __run_timers+0x7da/0xc70
[  433.032444]  ? task_prio+0x50/0x50
[  433.036661]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.041659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.045698]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.050697]  ? check_preemption_disabled+0x48/0x280
[  433.054652]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.058454]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.062935]  ? lockdep_hardirqs_on+0x296/0x5b0
[  433.068463]  apic_timer_interrupt+0xf/0x20
[  433.072937]  ? trace_hardirqs_on+0xbd/0x310
[  433.077925]  </IRQ>
[  433.082161]  ? kasan_check_read+0x11/0x20
[  433.086980] RIP: 0010:dump_stack+0x358/0x39d
[  433.086996] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  433.091554]  ? __run_timers+0x7da/0xc70
[  433.095776] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  433.100094]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.102314] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  433.106464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.110838] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  433.110849] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  433.129735]  __run_timers+0x7e5/0xc70
[  433.133806] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  433.133817] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  433.141517]  ? timer_fixup_init+0x70/0x70
[  433.146618]  ? dump_stack+0x34f/0x39d
[  433.153868]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  433.158089]  ? dump_stack_print_info.cold.1+0x20/0x20
[  433.165337]  ? zap_class+0x640/0x640
[  433.172590]  ? mark_held_locks+0x130/0x130
[  433.176372]  ? enqueue_hrtimer+0x1a5/0x560
[  433.183623]  ? mark_held_locks+0x130/0x130
[  433.190878]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  433.195006]  dump_header+0x27b/0xf72
[  433.198799]  ? find_held_lock+0x36/0x1c0
[  433.203802]  ? pagefault_out_of_memory+0x197/0x197
[  433.208972]  ? zap_class+0x640/0x640
[  433.212669]  ? __lock_acquire+0x62f/0x4c20
[  433.216901]  ? pvclock_read_flags+0x160/0x160
[  433.221118]  ? percpu_ref_get_many+0x240/0x240
[  433.225330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.230508]  ? print_usage_bug+0xc0/0xc0
[  433.234204]  ? check_preemption_disabled+0x48/0x280
[  433.238248]  ? zap_class+0x640/0x640
[  433.243161]  ? __lock_is_held+0xb5/0x140
[  433.246848]  ? print_usage_bug+0xc0/0xc0
[  433.251064]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.255651]  ? print_usage_bug+0xc0/0xc0
[  433.255666]  ? zap_class+0x640/0x640
[  433.260232]  ? check_preemption_disabled+0x48/0x280
[  433.265749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.269790]  run_timer_softirq+0x52/0xb0
[  433.274787]  ? find_held_lock+0x36/0x1c0
[  433.278484]  ? rcu_read_lock_sched_held+0x14f/0x180
[  433.282531]  ? mark_held_locks+0xc7/0x130
[  433.286568]  __do_softirq+0x308/0xb7e
[  433.292107]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  433.296149]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  433.299840]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  433.304836]  ? lock_downgrade+0x900/0x900
[  433.310378]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  433.314430]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  433.318474]  ? trace_hardirqs_on+0xbd/0x310
[  433.323475]  ? pvclock_read_flags+0x160/0x160
[  433.327599]  ? kasan_check_read+0x11/0x20
[  433.331378]  ? lapic_next_event+0x5a/0x90
[  433.336463]  ? ___ratelimit+0x3b4/0x672
[  433.340935]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.346028]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.350157]  ? kvm_clock_read+0x18/0x30
[  433.354722]  ? trace_hardirqs_on+0x310/0x310
[  433.359809]  ? kvm_sched_clock_read+0x9/0x20
[  433.364112]  ? lock_downgrade+0x900/0x900
[  433.368587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.372714]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  433.376844]  ? check_preemption_disabled+0x48/0x280
[  433.380795]  ? ___ratelimit+0x3b9/0x672
[  433.386336]  irq_exit+0x17f/0x1c0
[  433.391420]  ? idr_get_free+0xf70/0xf70
[  433.395378]  smp_apic_timer_interrupt+0x1cb/0x760
[  433.399771]  ? find_held_lock+0x36/0x1c0
[  433.404284]  ? smp_reschedule_interrupt+0x109/0x650
[  433.408440]  oom_kill_process.cold.27+0x10/0x903
[  433.413955]  ? smp_call_function_single_interrupt+0x650/0x650
[  433.419032]  ? zap_class+0x640/0x640
[  433.424113]  ? interrupt_entry+0xb5/0xc0
[  433.428068]  ? check_preemption_disabled+0x48/0x280
[  433.431503]  ? trace_hardirqs_off_caller+0xbb/0x310
[  433.435460]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.440280]  ? trace_hardirqs_off_caller+0xbb/0x310
[  433.444321]  ? kasan_check_read+0x11/0x20
[  433.449314]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.454047]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.460003]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.463694]  ? oom_evaluate_task+0x540/0x540
[  433.467740]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.472744]  ? find_held_lock+0x36/0x1c0
[  433.477754]  ? task_prio+0x50/0x50
[  433.482673]  ? out_of_memory+0x974/0x1430
[  433.487669]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.491887]  ? lock_downgrade+0x900/0x900
[  433.496712]  ? check_preemption_disabled+0x48/0x280
[  433.501969]  ? check_preemption_disabled+0x48/0x280
[  433.506969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.511359]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.516362]  apic_timer_interrupt+0xf/0x20
[  433.520487]  ? kasan_check_read+0x11/0x20
[  433.524000]  </IRQ>
[  433.528132]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.533652] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  433.537862]  ? rcu_softirq_qs+0x20/0x20
[  433.542859] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  433.547855]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.552671] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  433.557581]  ? oom_evaluate_task+0x302/0x540
[  433.561788] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  433.561799] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  433.565934]  out_of_memory+0xa84/0x1430
[  433.568150] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  433.573503]  ? oom_killer_disable+0x3a0/0x3a0
[  433.578418] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  433.582385]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  433.601365] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  433.606892]  ? __ww_mutex_check_waiters+0x160/0x160
[  433.614602]  skb_clone+0x1bb/0x500
[  433.618976]  __alloc_pages_slowpath+0x2354/0x2e10
[  433.626223]  ? finish_task_switch+0x2f4/0x910
[  433.633501]  ? warn_alloc+0x120/0x120
[  433.637438]  ? skb_split+0x11e0/0x11e0
[  433.637455]  ? preempt_notifier_register+0x200/0x200
[  433.644710]  ? mark_held_locks+0x130/0x130
[  433.649182]  ? __switch_to_asm+0x34/0x70
[  433.656441]  ? find_get_entry+0xaae/0x1120
[  433.661342]  ? __switch_to_asm+0x34/0x70
[  433.668601]  ? filemap_map_pages+0x1a20/0x1a20
[  433.673646]  ? __switch_to_asm+0x40/0x70
[  433.677411]  ? zap_class+0x640/0x640
[  433.682231]  ? __switch_to_asm+0x34/0x70
[  433.686708]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.690603]  ? __switch_to_asm+0x40/0x70
[  433.694476]  ? check_preemption_disabled+0x48/0x280
[  433.699569]  ? __switch_to_asm+0x34/0x70
[  433.703785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.707827]  ? __switch_to_asm+0x40/0x70
[  433.712042]  ? should_fail+0x22d/0xd01
[  433.716082]  ? __switch_to_asm+0x34/0x70
[  433.720656]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.724696]  ? __switch_to_asm+0x34/0x70
[  433.728395]  ? zap_class+0x640/0x640
[  433.732452]  ? __switch_to_asm+0x40/0x70
[  433.737992]  ? __lock_is_held+0xb5/0x140
[  433.742014]  ? __switch_to_asm+0x34/0x70
[  433.747016]  ? mark_held_locks+0x130/0x130
[  433.751068]  bpf_clone_redirect+0xb9/0x490
[  433.756591]  ? lock_release+0xa00/0xa00
[  433.760630]  ? __schedule+0x8d7/0x21d0
[  433.764532]  ? perf_trace_sched_process_exec+0x860/0x860
[  433.768586]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  433.773679]  ? xa_load+0x2ba/0x460
[  433.777719]  ? __sched_text_start+0x8/0x8
[  433.781422]  ? lock_downgrade+0x900/0x900
[  433.785457]  ? retint_kernel+0x2d/0x2d
[  433.789505]  ? __might_sleep+0x95/0x190
[  433.793566]  ? find_held_lock+0x36/0x1c0
[  433.797778]  __alloc_pages_nodemask+0xa80/0xde0
[  433.801998]  ? lock_acquire+0x1ed/0x520
[  433.805950]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  433.809816]  ? bpf_test_run+0x3cb/0x780
[  433.815242]  ? __page_cache_alloc+0x191/0x5c0
[  433.820250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.823766]  ? xa_load+0x2e1/0x460
[  433.827895]  ? check_preemption_disabled+0x48/0x280
[  433.832020]  ? xa_clear_mark+0x40/0x40
[  433.835892]  ? kasan_check_read+0x11/0x20
[  433.839844]  ? zap_class+0x640/0x640
[  433.843885]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.848536]  ? zap_class+0x640/0x640
[  433.852485]  ? rcu_softirq_qs+0x20/0x20
[  433.857485]  ? zap_class+0x640/0x640
[  433.861456]  ? preempt_schedule+0x4d/0x60
[  433.865931]  ? __do_page_cache_readahead+0x663/0x810
[  433.871533]  ? ___preempt_schedule+0x16/0x18
[  433.875055]  ? find_held_lock+0x36/0x1c0
[  433.880056]  ? bpf_test_run+0x25d/0x780
[  433.883924]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  433.888058]  ? netlink_diag_dump+0x2a0/0x2a0
[  433.892150]  alloc_pages_current+0x173/0x350
[  433.897413]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.901112]  __page_cache_alloc+0x38c/0x5c0
[  433.905167]  ? bpf_test_init.isra.10+0x70/0x100
[  433.908859]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.912989]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  433.918069]  ? kasan_check_read+0x11/0x20
[  433.922464]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  433.926501]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.930458]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  433.935976]  ? generic_perform_write+0x6a0/0x6a0
[  433.940372]  ? fput+0x130/0x1a0
[  433.944760]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.950295]  ? __bpf_prog_get+0x9b/0x290
[  433.954598]  ? check_preemption_disabled+0x48/0x280
[  433.959267]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  433.964187]  filemap_fault+0x1595/0x25f0
[  433.969003]  ? bpf_prog_test_run+0x130/0x1a0
[  433.973156]  ? __lock_page_or_retry+0xa00/0xa00
[  433.978068]  ? __x64_sys_bpf+0x3d8/0x520
[  433.983338]  ? mark_held_locks+0x130/0x130
[  433.988871]  ? bpf_prog_get+0x20/0x20
[  433.993616]  ? filemap_map_pages+0xd6b/0x1a20
[  433.996888]  ? do_syscall_64+0x1b9/0x820
[  434.002391]  ? lock_downgrade+0x900/0x900
[  434.006432]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  434.011432]  ? check_preemption_disabled+0x48/0x280
[  434.016253]  ? syscall_return_slowpath+0x5e0/0x5e0
[  434.020296]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  434.024686]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.029357]  ? kasan_check_read+0x11/0x20
[  434.033399]  ? trace_hardirqs_on_caller+0x310/0x310
[  434.037623]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.041411]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  434.045886]  ? rcu_softirq_qs+0x20/0x20
[  434.049935]  ? prepare_exit_to_usermode+0x291/0x3b0
[  434.054073]  ? filemap_map_pages+0xd92/0x1a20
[  434.059415]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.064421]  ? find_get_entries_tag+0x1400/0x1400
[  434.069348]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  434.074255]  ? find_held_lock+0x36/0x1c0
[  434.079096] rcu: rcu_preempt kthread starved for 10607 jiffies! g30945 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[  434.083221]  ? lock_acquire+0x1ed/0x520
[  434.088200] rcu: RCU grace-period kthread stack dump:
[  434.093461]  ? ext4_filemap_fault+0x7a/0xad
[  434.098451] rcu_preempt     R  running task    22392    10      2 0x80000000
[  434.102418]  ? lock_release+0xa00/0xa00
[  434.107401] Call Trace:
[  434.111885]  ? perf_trace_sched_process_exec+0x860/0x860
[  434.116712]  __schedule+0x8cf/0x21d0
[  434.121530]  ? print_usage_bug+0xc0/0xc0
[  434.126984]  ? __sched_text_start+0x8/0x8
[  434.131032]  ? down_read+0x8d/0x120
[  434.141496]  ? add_timer_on+0xa20/0xa20
[  434.145530]  ? ext4_filemap_fault+0x7a/0xad
[  434.150703]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  434.155097]  ? __down_interruptible+0x700/0x700
[  434.162358]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  434.166311]  ? find_held_lock+0x36/0x1c0
[  434.168880]  ? trace_hardirqs_on+0xbd/0x310
[  434.174310]  ext4_filemap_fault+0x82/0xad
[  434.178001]  ? kasan_check_read+0x11/0x20
[  434.182042]  __do_fault+0x100/0x6b0
[  434.186169]  ? prepare_to_swait_event+0x25a/0x800
[  434.189772]  ? lock_downgrade+0x900/0x900
[  434.193729]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.198133]  ? pmd_devmap_trans_unstable+0x220/0x220
[  434.203222]  schedule+0xfe/0x460
[  434.207869]  ? kasan_check_read+0x11/0x20
[  434.212954]  ? __schedule+0x21d0/0x21d0
[  434.216996]  ? do_raw_spin_unlock+0xa7/0x330
[  434.221299]  ? prepare_to_swait_event+0x25a/0x800
[  434.225425]  ? do_raw_spin_trylock+0x270/0x270
[  434.229571]  ? __init_swait_queue_head+0x150/0x150
[  434.233184]  __handle_mm_fault+0x3ea0/0x5be0
[  434.238001]  ? __lockdep_init_map+0x105/0x590
[  434.242132]  ? perf_trace_lock+0x7a0/0x7a0
[  434.247229]  ? lockdep_init_map+0x9/0x10
[  434.252316]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  434.255672]  schedule_timeout+0x140/0x260
[  434.259799]  ? __switch_to_asm+0x34/0x70
[  434.263750]  ? usleep_range+0x1a0/0x1a0
[  434.268139]  ? __switch_to_asm+0x34/0x70
[  434.272961]  ? __next_timer_interrupt+0x1a0/0x1a0
[  434.277538]  ? zap_class+0x640/0x640
[  434.282453]  rcu_gp_fqs_loop+0x762/0xa80
[  434.286847]  ? zap_class+0x640/0x640
[  434.291336]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  434.295548]  ? __x64_sys_futex+0x53e/0x6a0
[  434.299591]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.304416]  ? find_held_lock+0x36/0x1c0
[  434.309239]  ? perf_trace_sched_process_exec+0x860/0x860
[  434.313380]  ? handle_mm_fault+0x42a/0xc70
[  434.317439]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.321494]  ? lock_downgrade+0x900/0x900
[  434.326354]  ? rcu_gp_init+0x90b/0x1260
[  434.330044]  ? check_preemption_disabled+0x48/0x280
[  434.334085]  ? __switch_to_asm+0x34/0x70
[  434.337783]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  434.342532]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  434.346748]  ? kasan_check_read+0x11/0x20
[  434.351828]  ? __switch_to_asm+0x40/0x70
[  434.355869]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.361301]  ? zap_class+0x640/0x640
[  434.365520]  ? rcu_softirq_qs+0x20/0x20
[  434.371039]  ? find_held_lock+0x36/0x1c0
[  434.375182]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.379134]  ? zap_class+0x640/0x640
[  434.384130]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.388175]  ? __lock_is_held+0xb5/0x140
[  434.393081]  ? check_preemption_disabled+0x48/0x280
[  434.397817]  ? __lock_is_held+0xb5/0x140
[  434.402074]  handle_mm_fault+0x54f/0xc70
[  434.406115]  ? zap_class+0x640/0x640
[  434.411396]  ? __handle_mm_fault+0x5be0/0x5be0
[  434.415095]  ? rcu_accelerate_cbs+0x10a/0xae0
[  434.419048]  ? find_vma+0x34/0x190
[  434.423110]  ? find_held_lock+0x36/0x1c0
[  434.428198]  __do_page_fault+0x5e8/0xe60
[  434.431902]  ? rcu_gp_kthread+0x8cf/0xc70
[  434.437416]  ? trace_hardirqs_off+0xb8/0x310
[  434.441456]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.446460]  do_page_fault+0xf2/0x7e0
[  434.450507]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.454554]  ? vmalloc_sync_all+0x30/0x30
[  434.458273]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  434.462833]  ? error_entry+0x70/0xd0
[  434.467314]  ? trace_hardirqs_on+0xbd/0x310
[  434.470835]  ? trace_hardirqs_off_caller+0xbb/0x310
[  434.474881]  ? kasan_check_read+0x11/0x20
[  434.478920]  ? trace_hardirqs_on_caller+0xc0/0x310
[  434.483047]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.487433]  ? syscall_return_slowpath+0x5e0/0x5e0
[  434.491911]  ? perf_trace_sched_process_exec+0x860/0x860
[  434.495692]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.500175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.504327]  ? trace_hardirqs_on_caller+0x310/0x310
[  434.508903]  rcu_gp_kthread+0x341/0xc70
[  434.512582]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  434.512601]  ? prepare_exit_to_usermode+0x291/0x3b0
[  434.517004]  ? rcu_gp_init+0x1260/0x1260
[  434.521997]  ? page_fault+0x8/0x30
[  434.526125]  ? mark_held_locks+0x130/0x130
[  434.531033]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.536216]  ? __schedule+0x168a/0x21d0
[  434.541125]  ? page_fault+0x8/0x30
[  434.546559]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.551468]  page_fault+0x1e/0x30
[  434.556984]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  434.561979] RIP: 0033:0x404068
[  434.565936]  ? trace_hardirqs_on+0xbd/0x310
[  434.571386] Code: Bad RIP value.
[  434.576375]  ? kasan_check_read+0x11/0x20
[  434.580414] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  434.583953]  ? __schedule+0x168a/0x21d0
[  434.588173] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  434.588184] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  434.593018]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.596968] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  434.600512]  ? lock_pin_lock+0x350/0x350
[  434.604978] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  434.604988] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  434.608428]  ? _raw_spin_unlock_irq+0x60/0x80
[  434.613010] warn_alloc_show_mem: 1 callbacks suppressed
[  434.613013] Mem-Info:
[  434.616171]  ? __schedule+0x168a/0x21d0
[  434.620576] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  434.620576]  active_file:13 inactive_file:13 isolated_file:0
[  434.620576]  unevictable:0 dirty:0 writeback:0 unstable:0
[  434.620576]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  434.620576]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  434.620576]  free:13747 free_pcp:348 free_cma:0
[  434.623909]  ? __switch_to_asm+0x40/0x70
[  434.628057] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  434.633387]  ? __switch_to_asm+0x40/0x70
[  434.637336] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  434.644604]  ? show_schedstat+0x731/0xf30
[  434.651863] lowmem_reserve[]: 0 2818 6321 6321
[  434.656963]  ? __sched_text_start+0x8/0x8
[  434.664203] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  434.668350]  ? find_held_lock+0x36/0x1c0
[  434.675591] lowmem_reserve[]: 0 0 3503 3503
[  434.682870]  ? __kthread_parkme+0xce/0x1a0
[  434.687326] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  434.692766]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  434.695149] lowmem_reserve[]: 0 0 0 0
[  434.699134]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  434.732159] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  434.736216]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  434.764031] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  434.768091]  ? trace_hardirqs_on+0xbd/0x310
[  434.794168] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  434.798309]  ? kasan_check_read+0x11/0x20
[  434.802868] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  434.807000]  ? __kthread_parkme+0xce/0x1a0
[  434.834487] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  434.838535]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.842841] 4484 total pagecache pages
[  434.847072]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  434.876312] 0 pages in swap cache
[  434.881399]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.885175] Swap cache stats: add 0, delete 0, find 0/0
[  434.890638]  ? __kthread_parkme+0xfb/0x1a0
[  434.904134] Free swap  = 0kB
[  434.908707]  ? rcu_gp_init+0x1260/0x1260
[  434.923584] Total swap = 0kB
[  434.923592] 1965979 pages RAM
[  434.927902]  kthread+0x35a/0x440
[  434.943042] 0 pages HighMem/MovableOnly
[  434.943050] 342854 pages reserved
[  434.947185]  ? kthread_stop+0x900/0x900
[  434.956396] 0 pages cma reserved
[  434.960621]  ret_from_fork+0x3a/0x50
[  434.969220] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  434.974337] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  434.978227] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  434.983272] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  434.986673] syz-fuzzer cpuset=/ mems_allowed=0
[  434.992190] syz-executor2 cpuset=syz2 mems_allowed=0
[  434.997558] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  435.087332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  435.096685] Call Trace:
[  435.099265]  <IRQ>
[  435.101423]  dump_stack+0x244/0x39d
[  435.105050]  ? dump_stack_print_info.cold.1+0x20/0x20
[  435.110420]  warn_alloc.cold.116+0xb7/0x1bd
[  435.114734]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  435.119590]  ? lock_downgrade+0x900/0x900
[  435.123763]  ? trace_hardirqs_off+0xb8/0x310
[  435.128181]  ? trace_hardirqs_off+0xb8/0x310
[  435.132678]  __alloc_pages_slowpath+0x26e8/0x2e10
[  435.137559]  ? warn_alloc+0x120/0x120
[  435.141379]  ? print_usage_bug+0xc0/0xc0
[  435.145434]  ? warn_alloc+0x120/0x120
[  435.149233]  ? warn_alloc+0x120/0x120
[  435.153035]  ? print_usage_bug+0xc0/0xc0
[  435.157103]  ? kvm_clock_read+0x18/0x30
[  435.161092]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  435.166225]  ? print_usage_bug+0xc0/0xc0
[  435.170289]  ? __lock_acquire+0x62f/0x4c20
[  435.174628]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.180287]  ? should_fail+0x22d/0xd01
[  435.184280]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.189564]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.194670]  ? __lock_acquire+0x62f/0x4c20
[  435.198904]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.204001]  ? __lock_acquire+0x62f/0x4c20
[  435.208231]  ? should_fail+0x22d/0xd01
[  435.212118]  ? rcu_irq_exit+0x1a2/0x390
[  435.216096]  ? mark_held_locks+0x130/0x130
[  435.220338]  ? mark_held_locks+0x130/0x130
[  435.224574]  ? mark_held_locks+0xc7/0x130
[  435.228717]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  435.233732]  ? zap_class+0x640/0x640
[  435.237456]  ? print_usage_bug+0xc0/0xc0
[  435.241532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.247083]  ? check_preemption_disabled+0x48/0x280
[  435.252103]  ? __lock_is_held+0xb5/0x140
[  435.256166]  __alloc_pages_nodemask+0xa80/0xde0
[  435.260830]  ? zap_class+0x640/0x640
[  435.264562]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  435.269583]  ? find_held_lock+0x36/0x1c0
[  435.273669]  ? ____cache_alloc_node+0x1c7/0x1e0
[  435.278338]  ? lock_downgrade+0x900/0x900
[  435.282489]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.288030]  cache_grow_begin+0xa5/0x8c0
[  435.292086]  ? do_raw_spin_unlock+0xa7/0x330
[  435.296621]  fallback_alloc+0x204/0x2e0
[  435.300595]  ____cache_alloc_node+0x1c7/0x1e0
[  435.305099]  kmem_cache_alloc_node+0xe3/0x730
[  435.309590]  ? ipv6_get_ifaddr+0x42e/0x620
[  435.313835]  __alloc_skb+0x119/0x770
[  435.317547]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.322846]  ? netdev_alloc_frag+0x1f0/0x1f0
[  435.327257]  ? lock_downgrade+0x900/0x900
[  435.331410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.336962]  ? refcount_sub_and_test_checked+0x203/0x310
[  435.342413]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  435.347860]  ? addrconf_rs_timer+0x690/0x690
[  435.352274]  ndisc_alloc_skb+0x144/0x340
[  435.356339]  ndisc_send_rs+0x331/0x6e0
[  435.360227]  addrconf_rs_timer+0x314/0x690
[  435.364472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.368716]  call_timer_fn+0x272/0x920
[  435.372713]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.376942]  ? process_timeout+0x40/0x40
[  435.381004]  ? mark_held_locks+0xc7/0x130
[  435.385146]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.389635]  ? _raw_spin_unlock_irq+0x27/0x80
[  435.394122]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.398354]  ? lockdep_hardirqs_on+0x296/0x5b0
[  435.402942]  ? trace_hardirqs_on+0xbd/0x310
[  435.407262]  ? kasan_check_read+0x11/0x20
[  435.411413]  ? __run_timers+0x7da/0xc70
[  435.415905]  ? trace_hardirqs_off_caller+0x310/0x310
[  435.421015]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.425255]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  435.429485]  __run_timers+0x7e5/0xc70
[  435.433302]  ? timer_fixup_init+0x70/0x70
[  435.437450]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  435.442465]  ? zap_class+0x640/0x640
[  435.446211]  ? print_usage_bug+0xc0/0xc0
[  435.450289]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  435.455477]  ? find_held_lock+0x36/0x1c0
[  435.459541]  ? zap_class+0x640/0x640
[  435.463275]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.468835]  ? check_preemption_disabled+0x48/0x280
[  435.473854]  ? __lock_is_held+0xb5/0x140
[  435.477942]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.483476]  ? check_preemption_disabled+0x48/0x280
[  435.488504]  run_timer_softirq+0x52/0xb0
[  435.492567]  ? rcu_read_lock_sched_held+0x14f/0x180
[  435.497589]  __do_softirq+0x308/0xb7e
[  435.501388]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  435.505875]  ? lock_downgrade+0x900/0x900
[  435.510018]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  435.515130]  ? pvclock_read_flags+0x160/0x160
[  435.519629]  ? lapic_next_event+0x5a/0x90
[  435.523791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.529331]  ? kvm_clock_read+0x18/0x30
[  435.533306]  ? kvm_sched_clock_read+0x9/0x20
[  435.539987]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.545520]  ? check_preemption_disabled+0x48/0x280
[  435.550540]  irq_exit+0x17f/0x1c0
[  435.553990]  smp_apic_timer_interrupt+0x1cb/0x760
[  435.558862]  ? smp_call_function_single_interrupt+0x650/0x650
[  435.564830]  ? interrupt_entry+0xb5/0xc0
[  435.568888]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.573898]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.578912]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.583837]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.588842]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.593853]  ? task_prio+0x50/0x50
[  435.597386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.602919]  ? check_preemption_disabled+0x48/0x280
[  435.607932]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.612860]  apic_timer_interrupt+0xf/0x20
[  435.617176]  </IRQ>
[  435.619408] RIP: 0010:dump_stack+0x358/0x39d
[  435.623829] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  435.642721] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  435.650424] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  435.657684] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  435.664946] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  435.672238] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  435.679502] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  435.686785]  ? dump_stack+0x34f/0x39d
[  435.690594]  ? dump_stack_print_info.cold.1+0x20/0x20
[  435.695779]  ? mark_held_locks+0x130/0x130
[  435.700010]  ? mark_held_locks+0x130/0x130
[  435.704247]  dump_header+0x27b/0xf72
[  435.707969]  ? pagefault_out_of_memory+0x197/0x197
[  435.712900]  ? __lock_acquire+0x62f/0x4c20
[  435.717133]  ? percpu_ref_get_many+0x240/0x240
[  435.721715]  ? print_usage_bug+0xc0/0xc0
[  435.725776]  ? zap_class+0x640/0x640
[  435.729491]  ? print_usage_bug+0xc0/0xc0
[  435.733545]  ? print_usage_bug+0xc0/0xc0
[  435.737601]  ? zap_class+0x640/0x640
[  435.741317]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.746854]  ? find_held_lock+0x36/0x1c0
[  435.750923]  ? mark_held_locks+0xc7/0x130
[  435.755066]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  435.760161]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  435.765262]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  435.769841]  ? trace_hardirqs_on+0xbd/0x310
[  435.774157]  ? kasan_check_read+0x11/0x20
[  435.778303]  ? ___ratelimit+0x3b4/0x672
[  435.782299]  ? trace_hardirqs_off_caller+0x310/0x310
[  435.787396]  ? trace_hardirqs_on+0x310/0x310
[  435.791804]  ? lock_downgrade+0x900/0x900
[  435.795948]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  435.801062]  ? ___ratelimit+0x3b9/0x672
[  435.805032]  ? idr_get_free+0xf70/0xf70
[  435.808998]  ? find_held_lock+0x36/0x1c0
[  435.813062]  oom_kill_process.cold.27+0x10/0x903
[  435.817814]  ? zap_class+0x640/0x640
[  435.821526]  ? check_preemption_disabled+0x48/0x280
[  435.826538]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  435.831575]  ? kasan_check_read+0x11/0x20
[  435.835723]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.841001]  ? oom_evaluate_task+0x540/0x540
[  435.845405]  ? find_held_lock+0x36/0x1c0
[  435.849463]  ? out_of_memory+0x974/0x1430
[  435.853696]  ? lock_downgrade+0x900/0x900
[  435.857838]  ? check_preemption_disabled+0x48/0x280
[  435.862849]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  435.867772]  ? kasan_check_read+0x11/0x20
[  435.871914]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.877188]  ? rcu_softirq_qs+0x20/0x20
[  435.881170]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.886787]  ? oom_evaluate_task+0x302/0x540
[  435.891200]  out_of_memory+0xa84/0x1430
[  435.895178]  ? oom_killer_disable+0x3a0/0x3a0
[  435.899674]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  435.904602]  ? __ww_mutex_check_waiters+0x160/0x160
[  435.909622]  __alloc_pages_slowpath+0x2354/0x2e10
[  435.914491]  ? warn_alloc+0x120/0x120
[  435.918287]  ? mark_held_locks+0x130/0x130
[  435.922525]  ? find_get_entry+0xaae/0x1120
[  435.926760]  ? filemap_map_pages+0x1a20/0x1a20
[  435.931345]  ? zap_class+0x640/0x640
[  435.935061]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.940594]  ? check_preemption_disabled+0x48/0x280
[  435.945605]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.951137]  ? should_fail+0x22d/0xd01
[  435.955020]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.960120]  ? zap_class+0x640/0x640
[  435.963850]  ? __lock_is_held+0xb5/0x140
[  435.967913]  ? mark_held_locks+0x130/0x130
[  435.972143]  ? lock_release+0xa00/0xa00
[  435.976109]  ? perf_trace_sched_process_exec+0x860/0x860
[  435.981557]  ? xa_load+0x2ba/0x460
[  435.985104]  ? lock_downgrade+0x900/0x900
[  435.989257]  ? __might_sleep+0x95/0x190
[  435.993234]  __alloc_pages_nodemask+0xa80/0xde0
[  435.997919]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  436.002929]  ? __page_cache_alloc+0x191/0x5c0
[  436.007417]  ? xa_load+0x2e1/0x460
[  436.010974]  ? xa_clear_mark+0x40/0x40
[  436.014859]  ? zap_class+0x640/0x640
[  436.018575]  ? zap_class+0x640/0x640
[  436.022286]  ? zap_class+0x640/0x640
[  436.025996]  ? __do_page_cache_readahead+0x663/0x810
[  436.031117]  ? find_held_lock+0x36/0x1c0
[  436.035185]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  436.040811]  alloc_pages_current+0x173/0x350
[  436.045225]  __page_cache_alloc+0x38c/0x5c0
[  436.049544]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.054463]  ? kasan_check_read+0x11/0x20
[  436.058700]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.063970]  ? generic_perform_write+0x6a0/0x6a0
[  436.068823]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.074358]  ? check_preemption_disabled+0x48/0x280
[  436.079376]  filemap_fault+0x1595/0x25f0
[  436.083441]  ? __lock_page_or_retry+0xa00/0xa00
[  436.088105]  ? mark_held_locks+0x130/0x130
[  436.092346]  ? filemap_map_pages+0xd6b/0x1a20
[  436.096841]  ? lock_downgrade+0x900/0x900
[  436.100982]  ? check_preemption_disabled+0x48/0x280
[  436.105993]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.110916]  ? kasan_check_read+0x11/0x20
[  436.115145]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.120424]  ? rcu_softirq_qs+0x20/0x20
[  436.124406]  ? filemap_map_pages+0xd92/0x1a20
[  436.129008]  ? find_get_entries_tag+0x1400/0x1400
[  436.133842]  ? find_held_lock+0x36/0x1c0
[  436.137912]  ? lock_acquire+0x1ed/0x520
[  436.141879]  ? ext4_filemap_fault+0x7a/0xad
[  436.146205]  ? lock_release+0xa00/0xa00
[  436.150188]  ? perf_trace_sched_process_exec+0x860/0x860
[  436.155634]  ? print_usage_bug+0xc0/0xc0
[  436.159707]  ? down_read+0x8d/0x120
[  436.163327]  ? ext4_filemap_fault+0x7a/0xad
[  436.167647]  ? __down_interruptible+0x700/0x700
[  436.172316]  ? find_held_lock+0x36/0x1c0
[  436.176384]  ext4_filemap_fault+0x82/0xad
[  436.180625]  __do_fault+0x100/0x6b0
[  436.184247]  ? lock_downgrade+0x900/0x900
[  436.188393]  ? pmd_devmap_trans_unstable+0x220/0x220
[  436.193510]  ? kasan_check_read+0x11/0x20
[  436.197657]  ? do_raw_spin_unlock+0xa7/0x330
[  436.202074]  ? do_raw_spin_trylock+0x270/0x270
[  436.206681]  __handle_mm_fault+0x3ea0/0x5be0
[  436.211199]  ? perf_trace_lock+0x7a0/0x7a0
[  436.215540]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  436.220388]  ? __switch_to_asm+0x34/0x70
[  436.224442]  ? __switch_to_asm+0x34/0x70
[  436.228514]  ? zap_class+0x640/0x640
[  436.232231]  ? zap_class+0x640/0x640
[  436.235943]  ? __x64_sys_futex+0x53e/0x6a0
[  436.240200]  ? find_held_lock+0x36/0x1c0
[  436.244267]  ? handle_mm_fault+0x42a/0xc70
[  436.248501]  ? lock_downgrade+0x900/0x900
[  436.252645]  ? check_preemption_disabled+0x48/0x280
[  436.257661]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  436.262608]  ? kasan_check_read+0x11/0x20
[  436.266746]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.272013]  ? rcu_softirq_qs+0x20/0x20
[  436.275994]  ? trace_hardirqs_off_caller+0x310/0x310
[  436.281087]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.286628]  ? check_preemption_disabled+0x48/0x280
[  436.291643]  handle_mm_fault+0x54f/0xc70
[  436.295723]  ? __handle_mm_fault+0x5be0/0x5be0
[  436.300305]  ? find_vma+0x34/0x190
[  436.303843]  __do_page_fault+0x5e8/0xe60
[  436.307914]  ? trace_hardirqs_off+0xb8/0x310
[  436.312330]  do_page_fault+0xf2/0x7e0
[  436.316129]  ? vmalloc_sync_all+0x30/0x30
[  436.320275]  ? error_entry+0x70/0xd0
[  436.323986]  ? trace_hardirqs_off_caller+0xbb/0x310
[  436.329001]  ? trace_hardirqs_on_caller+0xc0/0x310
[  436.333924]  ? syscall_return_slowpath+0x5e0/0x5e0
[  436.338849]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.343686]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.348711]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  436.354168]  ? prepare_exit_to_usermode+0x291/0x3b0
[  436.359200]  ? page_fault+0x8/0x30
[  436.362745]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.367590]  ? page_fault+0x8/0x30
[  436.371126]  page_fault+0x1e/0x30
[  436.374578] RIP: 0033:0x404068
[  436.377776] Code: Bad RIP value.
[  436.381132] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  436.386496] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  436.393844] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  436.401105] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  436.408366] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  436.415626] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  436.422910] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  436.422912] Mem-Info:
[  436.422959] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  436.422959]  active_file:13 inactive_file:13 isolated_file:0
[  436.422959]  unevictable:0 dirty:0 writeback:0 unstable:0
[  436.422959]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  436.422959]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  436.422959]  free:13747 free_pcp:348 free_cma:0
[  436.430282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  436.430289] Call Trace:
[  436.432717] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  436.465834]  <IRQ>
[  436.475186] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  436.477765]  dump_stack+0x244/0x39d
[  436.505662] lowmem_reserve[]: 0 2818 6321 6321
[  436.507805]  ? dump_stack_print_info.cold.1+0x20/0x20
[  436.533882] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  436.537509]  warn_alloc.cold.116+0xb7/0x1bd
[  436.542051] lowmem_reserve[]: 0 0 3503 3503
[  436.547256]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  436.574925] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  436.579240]  ? lock_downgrade+0x900/0x900
[  436.583618] lowmem_reserve[]: 0 0 0 0
[  436.588482]  ? trace_hardirqs_off+0xb8/0x310
[  436.617719] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  436.621860]  ? trace_hardirqs_off+0xb8/0x310
[  436.625625] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  436.630038]  __alloc_pages_slowpath+0x26e8/0x2e10
[  436.643522] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  436.647966]  ? warn_alloc+0x120/0x120
[  436.662832] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  436.667668]  ? print_usage_bug+0xc0/0xc0
[  436.682913] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  436.686714]  ? warn_alloc+0x120/0x120
[  436.695625] 4484 total pagecache pages
[  436.699673]  ? warn_alloc+0x120/0x120
[  436.708225] 0 pages in swap cache
[  436.712006]  ? print_usage_bug+0xc0/0xc0
[  436.715866] Swap cache stats: add 0, delete 0, find 0/0
[  436.719663]  ? print_usage_bug+0xc0/0xc0
[  436.723085] Free swap  = 0kB
[  436.727139]  ? __lock_acquire+0x62f/0x4c20
[  436.732476] Total swap = 0kB
[  436.736525]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.739513] 1965979 pages RAM
[  436.743737]  ? should_fail+0x22d/0xd01
[  436.746723] 0 pages HighMem/MovableOnly
[  436.752248]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.755320] 342854 pages reserved
[  436.755327] 0 pages cma reserved
[  436.759203]  ? __lock_acquire+0x62f/0x4c20
[  436.763209] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  436.768417]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.768430]  ? __lock_acquire+0x62f/0x4c20
[  436.768444]  ? should_fail+0x22d/0xd01
[  436.771927] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  436.775228]  ? find_held_lock+0x36/0x1c0
[  436.779435] syz-fuzzer cpuset=/ mems_allowed=0
[  436.785920]  ? mark_held_locks+0x130/0x130
[  436.822230]  ? mark_held_locks+0x130/0x130
[  436.827327]  ? zap_class+0x640/0x640
[  436.831038]  ? zap_class+0x640/0x640
[  436.834750]  ? print_usage_bug+0xc0/0xc0
[  436.838801]  ? do_raw_spin_unlock+0xa7/0x330
[  436.843206]  ? zap_class+0x640/0x640
[  436.846915]  ? print_usage_bug+0xc0/0xc0
[  436.850975]  ? wq_watchdog_touch+0x9c/0xfe
[  436.855219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.860765]  ? check_preemption_disabled+0x48/0x280
[  436.865785]  ? __lock_is_held+0xb5/0x140
[  436.869860]  __alloc_pages_nodemask+0xa80/0xde0
[  436.874529]  ? zap_class+0x640/0x640
[  436.878240]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  436.883262]  ? find_held_lock+0x36/0x1c0
[  436.887333]  ? ____cache_alloc_node+0x1c7/0x1e0
[  436.892574]  ? lock_downgrade+0x900/0x900
[  436.896735]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.902273]  cache_grow_begin+0xa5/0x8c0
[  436.906418]  ? do_raw_spin_unlock+0xa7/0x330
[  436.910828]  fallback_alloc+0x204/0x2e0
[  436.914800]  ____cache_alloc_node+0x1c7/0x1e0
[  436.919295]  kmem_cache_alloc_node+0xe3/0x730
[  436.923801]  ? ipv6_get_ifaddr+0x42e/0x620
[  436.928042]  __alloc_skb+0x119/0x770
[  436.931753]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.937025]  ? netdev_alloc_frag+0x1f0/0x1f0
[  436.941431]  ? lock_downgrade+0x900/0x900
[  436.945585]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.951128]  ? refcount_sub_and_test_checked+0x203/0x310
[  436.956577]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  436.962024]  ? addrconf_rs_timer+0x690/0x690
[  436.966451]  ndisc_alloc_skb+0x144/0x340
[  436.970598]  ndisc_send_rs+0x331/0x6e0
[  436.974483]  addrconf_rs_timer+0x314/0x690
[  436.978716]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.982953]  call_timer_fn+0x272/0x920
[  436.986831]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.991061]  ? process_timeout+0x40/0x40
[  436.995127]  ? __run_timers+0x7da/0xc70
[  436.999093]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.003591]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.008080]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.012317]  ? lockdep_hardirqs_on+0x296/0x5b0
[  437.016913]  ? trace_hardirqs_on+0xbd/0x310
[  437.021229]  ? kasan_check_read+0x11/0x20
[  437.025370]  ? __run_timers+0x7da/0xc70
[  437.029339]  ? trace_hardirqs_off_caller+0x310/0x310
[  437.034448]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.038687]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.042913]  __run_timers+0x7e5/0xc70
[  437.046716]  ? timer_fixup_init+0x70/0x70
[  437.050860]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  437.055880]  ? zap_class+0x640/0x640
[  437.060084]  ? enqueue_hrtimer+0x1a5/0x560
[  437.064327]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  437.069525]  ? find_held_lock+0x36/0x1c0
[  437.073591]  ? zap_class+0x640/0x640
[  437.077306]  ? pvclock_read_flags+0x160/0x160
[  437.081803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.087428]  ? check_preemption_disabled+0x48/0x280
[  437.092452]  ? __lock_is_held+0xb5/0x140
[  437.096509]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.102041]  ? check_preemption_disabled+0x48/0x280
[  437.107058]  run_timer_softirq+0x52/0xb0
[  437.111129]  ? rcu_read_lock_sched_held+0x14f/0x180
[  437.116149]  __do_softirq+0x308/0xb7e
[  437.119950]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  437.124443]  ? lock_downgrade+0x900/0x900
[  437.128590]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  437.133695]  ? pvclock_read_flags+0x160/0x160
[  437.138188]  ? lapic_next_event+0x5a/0x90
[  437.142334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.147870]  ? kvm_clock_read+0x18/0x30
[  437.151838]  ? kvm_sched_clock_read+0x9/0x20
[  437.156248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.161782]  ? check_preemption_disabled+0x48/0x280
[  437.166804]  irq_exit+0x17f/0x1c0
[  437.170253]  smp_apic_timer_interrupt+0x1cb/0x760
[  437.175097]  ? smp_reschedule_interrupt+0x109/0x650
[  437.180131]  ? smp_call_function_single_interrupt+0x650/0x650
[  437.186012]  ? interrupt_entry+0xb5/0xc0
[  437.190069]  ? trace_hardirqs_off_caller+0xbb/0x310
[  437.195096]  ? trace_hardirqs_off_caller+0xbb/0x310
[  437.200117]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.204957]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.209969]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.214980]  ? task_prio+0x50/0x50
[  437.218516]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.224056]  ? check_preemption_disabled+0x48/0x280
[  437.229078]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.233933]  apic_timer_interrupt+0xf/0x20
[  437.238157]  </IRQ>
[  437.240393] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  437.245320] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  437.264217] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  437.271923] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  437.279188] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  437.286451] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  437.293712] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  437.300984] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  437.308284]  skb_clone+0x1bb/0x500
[  437.311820]  ? finish_task_switch+0x2f4/0x910
[  437.316311]  ? skb_split+0x11e0/0x11e0
[  437.320196]  ? preempt_notifier_register+0x200/0x200
[  437.325294]  ? __switch_to_asm+0x34/0x70
[  437.329351]  ? __switch_to_asm+0x34/0x70
[  437.333407]  ? __switch_to_asm+0x40/0x70
[  437.337464]  ? __switch_to_asm+0x34/0x70
[  437.341517]  ? __switch_to_asm+0x40/0x70
[  437.345569]  ? __switch_to_asm+0x34/0x70
[  437.349624]  ? __switch_to_asm+0x40/0x70
[  437.353682]  ? __switch_to_asm+0x34/0x70
[  437.357735]  ? __switch_to_asm+0x34/0x70
[  437.361791]  ? __switch_to_asm+0x40/0x70
[  437.365849]  ? __switch_to_asm+0x34/0x70
[  437.369908]  bpf_clone_redirect+0xb9/0x490
[  437.374136]  ? __schedule+0x8d7/0x21d0
[  437.378026]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  437.383038]  ? __sched_text_start+0x8/0x8
[  437.387179]  ? retint_kernel+0x2d/0x2d
[  437.391079]  ? find_held_lock+0x36/0x1c0
[  437.395142]  ? lock_acquire+0x1ed/0x520
[  437.399125]  ? bpf_test_run+0x3cb/0x780
[  437.403123]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.408670]  ? check_preemption_disabled+0x48/0x280
[  437.413688]  ? kasan_check_read+0x11/0x20
[  437.417940]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.423214]  ? rcu_softirq_qs+0x20/0x20
[  437.427181]  ? preempt_schedule+0x4d/0x60
[  437.431321]  ? ___preempt_schedule+0x16/0x18
[  437.435732]  ? bpf_test_run+0x25d/0x780
[  437.439730]  ? netlink_diag_dump+0x2a0/0x2a0
[  437.444142]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.449671]  ? bpf_test_init.isra.10+0x70/0x100
[  437.454360]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  437.459127]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  437.463981]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  437.469525]  ? fput+0x130/0x1a0
[  437.472799]  ? __bpf_prog_get+0x9b/0x290
[  437.476881]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  437.481720]  ? bpf_prog_test_run+0x130/0x1a0
[  437.486128]  ? __x64_sys_bpf+0x3d8/0x520
[  437.490185]  ? bpf_prog_get+0x20/0x20
[  437.494000]  ? do_syscall_64+0x1b9/0x820
[  437.498053]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  437.503420]  ? syscall_return_slowpath+0x5e0/0x5e0
[  437.508343]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.513180]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.518193]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  437.523206]  ? prepare_exit_to_usermode+0x291/0x3b0
[  437.528237]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.533090]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  437.538466] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  437.538531] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  437.545475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  437.545482] Call Trace:
[  437.552046] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  437.561299]  <IRQ>
[  437.563866] syz-executor2 cpuset=syz2 mems_allowed=0
[  437.574335]  dump_stack+0x244/0x39d
[  437.585159]  ? dump_stack_print_info.cold.1+0x20/0x20
[  437.590359]  warn_alloc.cold.116+0xb7/0x1bd
[  437.594678]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  437.599517]  ? lock_downgrade+0x900/0x900
[  437.603668]  ? trace_hardirqs_off+0xb8/0x310
[  437.608085]  ? trace_hardirqs_off+0xb8/0x310
[  437.612501]  __alloc_pages_slowpath+0x26e8/0x2e10
[  437.617364]  ? warn_alloc+0x120/0x120
[  437.621161]  ? print_usage_bug+0xc0/0xc0
[  437.625221]  ? warn_alloc+0x120/0x120
[  437.629021]  ? warn_alloc+0x120/0x120
[  437.632826]  ? print_usage_bug+0xc0/0xc0
[  437.636884]  ? print_usage_bug+0xc0/0xc0
[  437.641635]  ? __lock_acquire+0x62f/0x4c20
[  437.645871]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.651410]  ? should_fail+0x22d/0xd01
[  437.655298]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.660398]  ? __lock_acquire+0x62f/0x4c20
[  437.664635]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.669736]  ? __lock_acquire+0x62f/0x4c20
[  437.673963]  ? should_fail+0x22d/0xd01
[  437.677845]  ? find_held_lock+0x36/0x1c0
[  437.681914]  ? mark_held_locks+0x130/0x130
[  437.686151]  ? mark_held_locks+0x130/0x130
[  437.690376]  ? zap_class+0x640/0x640
[  437.694109]  ? zap_class+0x640/0x640
[  437.697821]  ? print_usage_bug+0xc0/0xc0
[  437.701874]  ? do_raw_spin_unlock+0xa7/0x330
[  437.706276]  ? zap_class+0x640/0x640
[  437.709982]  ? print_usage_bug+0xc0/0xc0
[  437.714039]  ? wq_watchdog_touch+0x9c/0xfe
[  437.718281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.723819]  ? check_preemption_disabled+0x48/0x280
[  437.728842]  ? __lock_is_held+0xb5/0x140
[  437.732902]  __alloc_pages_nodemask+0xa80/0xde0
[  437.737595]  ? zap_class+0x640/0x640
[  437.741310]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  437.746334]  ? find_held_lock+0x36/0x1c0
[  437.750402]  ? ____cache_alloc_node+0x1c7/0x1e0
[  437.755084]  ? lock_downgrade+0x900/0x900
[  437.759238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.764778]  cache_grow_begin+0xa5/0x8c0
[  437.768831]  ? do_raw_spin_unlock+0xa7/0x330
[  437.773243]  fallback_alloc+0x204/0x2e0
[  437.777218]  ____cache_alloc_node+0x1c7/0x1e0
[  437.781711]  kmem_cache_alloc_node+0xe3/0x730
[  437.786201]  ? ipv6_get_ifaddr+0x42e/0x620
[  437.790442]  __alloc_skb+0x119/0x770
[  437.794150]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.799426]  ? netdev_alloc_frag+0x1f0/0x1f0
[  437.803909]  ? lock_downgrade+0x900/0x900
[  437.808066]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.813600]  ? refcount_sub_and_test_checked+0x203/0x310
[  437.819062]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  437.824524]  ? addrconf_rs_timer+0x690/0x690
[  437.828936]  ndisc_alloc_skb+0x144/0x340
[  437.832997]  ndisc_send_rs+0x331/0x6e0
[  437.836895]  addrconf_rs_timer+0x314/0x690
[  437.841133]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.845387]  call_timer_fn+0x272/0x920
[  437.849267]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.853516]  ? process_timeout+0x40/0x40
[  437.857577]  ? mark_held_locks+0xc7/0x130
[  437.861723]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.866209]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.870696]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.874929]  ? lockdep_hardirqs_on+0x296/0x5b0
[  437.879507]  ? trace_hardirqs_on+0xbd/0x310
[  437.883820]  ? kasan_check_read+0x11/0x20
[  437.887961]  ? __run_timers+0x7da/0xc70
[  437.891932]  ? trace_hardirqs_off_caller+0x310/0x310
[  437.897038]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.901273]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.905507]  __run_timers+0x7e5/0xc70
[  437.909312]  ? timer_fixup_init+0x70/0x70
[  437.913543]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  437.918572]  ? zap_class+0x640/0x640
[  437.922286]  ? print_usage_bug+0xc0/0xc0
[  437.926348]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  437.931626]  ? find_held_lock+0x36/0x1c0
[  437.935717]  ? zap_class+0x640/0x640
[  437.939434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.944969]  ? check_preemption_disabled+0x48/0x280
[  437.949992]  ? __lock_is_held+0xb5/0x140
[  437.954063]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.959597]  ? check_preemption_disabled+0x48/0x280
[  437.964615]  run_timer_softirq+0x52/0xb0
[  437.968671]  ? rcu_read_lock_sched_held+0x14f/0x180
[  437.973683]  __do_softirq+0x308/0xb7e
[  437.977487]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  437.981976]  ? lock_downgrade+0x900/0x900
[  437.986123]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  437.991231]  ? pvclock_read_flags+0x160/0x160
[  437.995723]  ? lapic_next_event+0x5a/0x90
[  437.999882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.005422]  ? kvm_clock_read+0x18/0x30
[  438.009392]  ? kvm_sched_clock_read+0x9/0x20
[  438.013796]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.019331]  ? check_preemption_disabled+0x48/0x280
[  438.024354]  irq_exit+0x17f/0x1c0
[  438.027805]  smp_apic_timer_interrupt+0x1cb/0x760
[  438.032649]  ? smp_call_function_single_interrupt+0x650/0x650
[  438.038526]  ? interrupt_entry+0xb5/0xc0
[  438.042588]  ? trace_hardirqs_off_caller+0xbb/0x310
[  438.047603]  ? trace_hardirqs_off_caller+0xbb/0x310
[  438.052615]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.057455]  ? trace_hardirqs_on_caller+0x310/0x310
[  438.062469]  ? trace_hardirqs_on_caller+0x310/0x310
[  438.067482]  ? task_prio+0x50/0x50
[  438.071027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.076592]  ? check_preemption_disabled+0x48/0x280
[  438.081611]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.086459]  apic_timer_interrupt+0xf/0x20
[  438.090683]  </IRQ>
[  438.092929] RIP: 0010:dump_stack+0x358/0x39d
[  438.097336] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  438.116232] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  438.124050] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  438.131315] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  438.138580] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  438.145842] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  438.153105] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  438.160387]  ? dump_stack+0x34f/0x39d
[  438.164195]  ? dump_stack_print_info.cold.1+0x20/0x20
[  438.169386]  ? mark_held_locks+0x130/0x130
[  438.173654]  ? mark_held_locks+0x130/0x130
[  438.177927]  dump_header+0x27b/0xf72
[  438.181664]  ? pagefault_out_of_memory+0x197/0x197
[  438.186598]  ? __lock_acquire+0x62f/0x4c20
[  438.190887]  ? percpu_ref_get_many+0x240/0x240
[  438.195493]  ? print_usage_bug+0xc0/0xc0
[  438.199557]  ? zap_class+0x640/0x640
[  438.203268]  ? print_usage_bug+0xc0/0xc0
[  438.207327]  ? print_usage_bug+0xc0/0xc0
[  438.211394]  ? zap_class+0x640/0x640
[  438.215110]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.220646]  ? find_held_lock+0x36/0x1c0
[  438.224714]  ? mark_held_locks+0xc7/0x130
[  438.228863]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  438.233961]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  438.239068]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  438.243645]  ? trace_hardirqs_on+0xbd/0x310
[  438.247962]  ? kasan_check_read+0x11/0x20
[  438.252105]  ? ___ratelimit+0x3b4/0x672
[  438.256080]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.261182]  ? trace_hardirqs_on+0x310/0x310
[  438.265591]  ? lock_downgrade+0x900/0x900
[  438.269740]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  438.274840]  ? ___ratelimit+0x3b9/0x672
[  438.278929]  ? idr_get_free+0xf70/0xf70
[  438.282934]  ? find_held_lock+0x36/0x1c0
[  438.287037]  oom_kill_process.cold.27+0x10/0x903
[  438.291799]  ? zap_class+0x640/0x640
[  438.295511]  ? check_preemption_disabled+0x48/0x280
[  438.300525]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.305471]  ? kasan_check_read+0x11/0x20
[  438.309614]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.314932]  ? oom_evaluate_task+0x540/0x540
[  438.319405]  ? find_held_lock+0x36/0x1c0
[  438.323471]  ? out_of_memory+0x974/0x1430
[  438.327647]  ? lock_downgrade+0x900/0x900
[  438.331831]  ? check_preemption_disabled+0x48/0x280
[  438.336848]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.341771]  ? kasan_check_read+0x11/0x20
[  438.345915]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.351185]  ? rcu_softirq_qs+0x20/0x20
[  438.355164]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.360709]  ? oom_evaluate_task+0x302/0x540
[  438.365137]  out_of_memory+0xa84/0x1430
[  438.369118]  ? oom_killer_disable+0x3a0/0x3a0
[  438.373609]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  438.378537]  ? __ww_mutex_check_waiters+0x160/0x160
[  438.383620]  __alloc_pages_slowpath+0x2354/0x2e10
[  438.388485]  ? warn_alloc+0x120/0x120
[  438.392280]  ? mark_held_locks+0x130/0x130
[  438.396519]  ? find_get_entry+0xaae/0x1120
[  438.400757]  ? filemap_map_pages+0x1a20/0x1a20
[  438.405360]  ? zap_class+0x640/0x640
[  438.409079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.414612]  ? check_preemption_disabled+0x48/0x280
[  438.419670]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.425253]  ? should_fail+0x22d/0xd01
[  438.429185]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  438.434298]  ? zap_class+0x640/0x640
[  438.438037]  ? __lock_is_held+0xb5/0x140
[  438.442105]  ? mark_held_locks+0x130/0x130
[  438.446337]  ? lock_release+0xa00/0xa00
[  438.450307]  ? perf_trace_sched_process_exec+0x860/0x860
[  438.455754]  ? xa_load+0x2ba/0x460
[  438.459306]  ? lock_downgrade+0x900/0x900
[  438.463458]  ? __might_sleep+0x95/0x190
[  438.467606]  __alloc_pages_nodemask+0xa80/0xde0
[  438.472278]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  438.477295]  ? __page_cache_alloc+0x191/0x5c0
[  438.481785]  ? xa_load+0x2e1/0x460
[  438.485323]  ? xa_clear_mark+0x40/0x40
[  438.489209]  ? zap_class+0x640/0x640
[  438.492926]  ? zap_class+0x640/0x640
[  438.496637]  ? zap_class+0x640/0x640
[  438.500348]  ? __do_page_cache_readahead+0x663/0x810
[  438.505485]  ? find_held_lock+0x36/0x1c0
[  438.509584]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  438.515124]  alloc_pages_current+0x173/0x350
[  438.519534]  __page_cache_alloc+0x38c/0x5c0
[  438.523849]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.528773]  ? kasan_check_read+0x11/0x20
[  438.533008]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.538288]  ? generic_perform_write+0x6a0/0x6a0
[  438.543051]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.548586]  ? check_preemption_disabled+0x48/0x280
[  438.553608]  filemap_fault+0x1595/0x25f0
[  438.557677]  ? __lock_page_or_retry+0xa00/0xa00
[  438.562344]  ? mark_held_locks+0x130/0x130
[  438.566583]  ? filemap_map_pages+0xd6b/0x1a20
[  438.571075]  ? lock_downgrade+0x900/0x900
[  438.575222]  ? check_preemption_disabled+0x48/0x280
[  438.580242]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.585170]  ? kasan_check_read+0x11/0x20
[  438.589316]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.594595]  ? rcu_softirq_qs+0x20/0x20
[  438.598581]  ? filemap_map_pages+0xd92/0x1a20
[  438.603086]  ? find_get_entries_tag+0x1400/0x1400
[  438.607924]  ? find_held_lock+0x36/0x1c0
[  438.612010]  ? lock_acquire+0x1ed/0x520
[  438.615991]  ? ext4_filemap_fault+0x7a/0xad
[  438.620333]  ? lock_release+0xa00/0xa00
[  438.624344]  ? perf_trace_sched_process_exec+0x860/0x860
[  438.629804]  ? print_usage_bug+0xc0/0xc0
[  438.633877]  ? down_read+0x8d/0x120
[  438.637498]  ? ext4_filemap_fault+0x7a/0xad
[  438.641815]  ? __down_interruptible+0x700/0x700
[  438.646483]  ? find_held_lock+0x36/0x1c0
[  438.650543]  ext4_filemap_fault+0x82/0xad
[  438.654691]  __do_fault+0x100/0x6b0
[  438.658323]  ? lock_downgrade+0x900/0x900
[  438.662470]  ? pmd_devmap_trans_unstable+0x220/0x220
[  438.667586]  ? kasan_check_read+0x11/0x20
[  438.671729]  ? do_raw_spin_unlock+0xa7/0x330
[  438.676132]  ? do_raw_spin_trylock+0x270/0x270
[  438.680791]  __handle_mm_fault+0x3ea0/0x5be0
[  438.685221]  ? perf_trace_lock+0x7a0/0x7a0
[  438.689460]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  438.694308]  ? __switch_to_asm+0x34/0x70
[  438.698377]  ? __switch_to_asm+0x34/0x70
[  438.702444]  ? zap_class+0x640/0x640
[  438.706153]  ? zap_class+0x640/0x640
[  438.709898]  ? __x64_sys_futex+0x53e/0x6a0
[  438.714176]  ? find_held_lock+0x36/0x1c0
[  438.718241]  ? handle_mm_fault+0x42a/0xc70
[  438.722472]  ? lock_downgrade+0x900/0x900
[  438.726615]  ? check_preemption_disabled+0x48/0x280
[  438.731629]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.736552]  ? kasan_check_read+0x11/0x20
[  438.740692]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.745971]  ? rcu_softirq_qs+0x20/0x20
[  438.749945]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.755051]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.760673]  ? check_preemption_disabled+0x48/0x280
[  438.765695]  handle_mm_fault+0x54f/0xc70
[  438.769755]  ? __handle_mm_fault+0x5be0/0x5be0
[  438.774338]  ? find_vma+0x34/0x190
[  438.777938]  __do_page_fault+0x5e8/0xe60
[  438.782018]  ? trace_hardirqs_off+0xb8/0x310
[  438.786431]  do_page_fault+0xf2/0x7e0
[  438.790230]  ? vmalloc_sync_all+0x30/0x30
[  438.794380]  ? error_entry+0x70/0xd0
[  438.798091]  ? trace_hardirqs_off_caller+0xbb/0x310
[  438.803100]  ? trace_hardirqs_on_caller+0xc0/0x310
[  438.808042]  ? syscall_return_slowpath+0x5e0/0x5e0
[  438.812972]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.817810]  ? trace_hardirqs_on_caller+0x310/0x310
[  438.822821]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  438.828270]  ? prepare_exit_to_usermode+0x291/0x3b0
[  438.833284]  ? page_fault+0x8/0x30
[  438.836825]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.841668]  ? page_fault+0x8/0x30
[  438.845222]  page_fault+0x1e/0x30
[  438.848688] RIP: 0033:0x404068
[  438.851892] Code: Bad RIP value.
[  438.855252] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  438.860613] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  438.867877] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  438.875139] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  438.882405] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  438.890017] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  438.897397] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  438.897415] warn_alloc_show_mem: 1 callbacks suppressed
[  438.897427] Mem-Info:
[  438.904800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  438.910164] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  438.910164]  active_file:13 inactive_file:13 isolated_file:0
[  438.910164]  unevictable:0 dirty:0 writeback:0 unstable:0
[  438.910164]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  438.910164]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  438.910164]  free:13747 free_pcp:348 free_cma:0
[  438.912535] Call Trace:
[  438.922698] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  438.955688]  <IRQ>
[  438.958254] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  438.986112]  dump_stack+0x244/0x39d
[  438.988207] lowmem_reserve[]: 0 2818 6321 6321
[  439.014318]  ? dump_stack_print_info.cold.1+0x20/0x20
[  439.017929] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  439.022526]  warn_alloc.cold.116+0xb7/0x1bd
[  439.027677] lowmem_reserve[]: 0 0 3503 3503
[  439.055655]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  439.060297] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  439.064624]  ? lock_downgrade+0x900/0x900
[  439.069424] lowmem_reserve[]: 0 0 0 0
[  439.098565]  ? trace_hardirqs_off+0xb8/0x310
[  439.102680] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  439.106471]  ? trace_hardirqs_off+0xb8/0x310
[  439.110846] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  439.124406]  __alloc_pages_slowpath+0x26e8/0x2e10
[  439.128777] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  439.143851]  ? warn_alloc+0x120/0x120
[  439.148651] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  439.163904]  ? print_usage_bug+0xc0/0xc0
[  439.167678] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  439.167686] 4484 total pagecache pages
[  439.176509]  ? warn_alloc+0x120/0x120
[  439.180566] 0 pages in swap cache
[  439.189125]  ? warn_alloc+0x120/0x120
[  439.192993] Swap cache stats: add 0, delete 0, find 0/0
[  439.196775]  ? print_usage_bug+0xc0/0xc0
[  439.200198] Free swap  = 0kB
[  439.203992]  ? kvm_clock_read+0x18/0x30
[  439.204009]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  439.209343] Total swap = 0kB
[  439.213392]  ? print_usage_bug+0xc0/0xc0
[  439.216384] 1965979 pages RAM
[  439.220355]  ? __lock_acquire+0x62f/0x4c20
[  439.225337] 0 pages HighMem/MovableOnly
[  439.225345] 342854 pages reserved
[  439.228353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.232385] 0 pages cma reserved
[  439.235482]  ? should_fail+0x22d/0xd01
[  439.239738] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  439.243639]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.243657]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.247174] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  439.252612]  ? __lock_acquire+0x62f/0x4c20
[  439.255948] syz-fuzzer cpuset=/ mems_allowed=0
[  439.259824]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.300734]  ? __lock_acquire+0x62f/0x4c20
[  439.304979]  ? should_fail+0x22d/0xd01
[  439.308879]  ? rcu_irq_exit+0x1a2/0x390
[  439.312876]  ? mark_held_locks+0x130/0x130
[  439.317114]  ? mark_held_locks+0x130/0x130
[  439.321368]  ? mark_held_locks+0xc7/0x130
[  439.325540]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  439.330591]  ? zap_class+0x640/0x640
[  439.334298]  ? print_usage_bug+0xc0/0xc0
[  439.338358]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.343895]  ? check_preemption_disabled+0x48/0x280
[  439.348931]  ? __lock_is_held+0xb5/0x140
[  439.353008]  __alloc_pages_nodemask+0xa80/0xde0
[  439.357783]  ? zap_class+0x640/0x640
[  439.361502]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  439.366528]  ? find_held_lock+0x36/0x1c0
[  439.370593]  ? ____cache_alloc_node+0x1c7/0x1e0
[  439.375353]  ? lock_downgrade+0x900/0x900
[  439.379536]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.385127]  cache_grow_begin+0xa5/0x8c0
[  439.389207]  ? do_raw_spin_unlock+0xa7/0x330
[  439.393616]  fallback_alloc+0x204/0x2e0
[  439.397596]  ____cache_alloc_node+0x1c7/0x1e0
[  439.402095]  kmem_cache_alloc_node+0xe3/0x730
[  439.406599]  ? ipv6_get_ifaddr+0x42e/0x620
[  439.410843]  __alloc_skb+0x119/0x770
[  439.414563]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.419853]  ? netdev_alloc_frag+0x1f0/0x1f0
[  439.424261]  ? lock_downgrade+0x900/0x900
[  439.428427]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.433965]  ? refcount_sub_and_test_checked+0x203/0x310
[  439.439417]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  439.444862]  ? addrconf_rs_timer+0x690/0x690
[  439.449379]  ndisc_alloc_skb+0x144/0x340
[  439.453510]  ndisc_send_rs+0x331/0x6e0
[  439.457402]  addrconf_rs_timer+0x314/0x690
[  439.461649]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.466031]  call_timer_fn+0x272/0x920
[  439.469921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.474164]  ? process_timeout+0x40/0x40
[  439.478227]  ? __run_timers+0x7da/0xc70
[  439.482209]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.486698]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.491187]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.495418]  ? lockdep_hardirqs_on+0x296/0x5b0
[  439.500000]  ? trace_hardirqs_on+0xbd/0x310
[  439.505101]  ? kasan_check_read+0x11/0x20
[  439.509245]  ? __run_timers+0x7da/0xc70
[  439.513225]  ? trace_hardirqs_off_caller+0x310/0x310
[  439.518363]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.522618]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.526860]  __run_timers+0x7e5/0xc70
[  439.530667]  ? timer_fixup_init+0x70/0x70
[  439.534813]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  439.539828]  ? zap_class+0x640/0x640
[  439.543540]  ? enqueue_hrtimer+0x1a5/0x560
[  439.547771]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  439.552966]  ? find_held_lock+0x36/0x1c0
[  439.557029]  ? zap_class+0x640/0x640
[  439.560745]  ? pvclock_read_flags+0x160/0x160
[  439.565252]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.570814]  ? check_preemption_disabled+0x48/0x280
[  439.575835]  ? __lock_is_held+0xb5/0x140
[  439.579913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.585451]  ? check_preemption_disabled+0x48/0x280
[  439.590472]  run_timer_softirq+0x52/0xb0
[  439.594532]  ? rcu_read_lock_sched_held+0x14f/0x180
[  439.599563]  __do_softirq+0x308/0xb7e
[  439.603361]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  439.607862]  ? lock_downgrade+0x900/0x900
[  439.612018]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  439.617126]  ? pvclock_read_flags+0x160/0x160
[  439.621630]  ? lapic_next_event+0x5a/0x90
[  439.625775]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.631313]  ? kvm_clock_read+0x18/0x30
[  439.635295]  ? kvm_sched_clock_read+0x9/0x20
[  439.639709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.645246]  ? check_preemption_disabled+0x48/0x280
[  439.650267]  irq_exit+0x17f/0x1c0
[  439.653722]  smp_apic_timer_interrupt+0x1cb/0x760
[  439.658558]  ? smp_reschedule_interrupt+0x109/0x650
[  439.663568]  ? smp_call_function_single_interrupt+0x650/0x650
[  439.669450]  ? interrupt_entry+0xb5/0xc0
[  439.673523]  ? trace_hardirqs_off_caller+0xbb/0x310
[  439.678533]  ? trace_hardirqs_off_caller+0xbb/0x310
[  439.683657]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.688498]  ? trace_hardirqs_on_caller+0x310/0x310
[  439.693506]  ? trace_hardirqs_on_caller+0x310/0x310
[  439.698519]  ? task_prio+0x50/0x50
[  439.702060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.707592]  ? check_preemption_disabled+0x48/0x280
[  439.712608]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.717461]  apic_timer_interrupt+0xf/0x20
[  439.721684]  </IRQ>
[  439.723927] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  439.728856] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 52 6a
[  439.747753] RSP: 0000:ffff880194e4f738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  439.755470] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  439.762735] RDX: 0000000000000000 RSI: ffff8801b95528c0 RDI: 0000000000000286
[  439.769997] RBP: ffff880194e4f7a0 R08: ffff8801b9552040 R09: 0000000000000000
[  439.777262] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  439.784525] R13: ffff8801d9a95d80 R14: ffff8801d9a95d80 R15: 0000000000480020
[  439.791829]  skb_clone+0x1bb/0x500
[  439.795380]  ? finish_task_switch+0x2f4/0x910
[  439.799882]  ? skb_split+0x11e0/0x11e0
[  439.803767]  ? preempt_notifier_register+0x200/0x200
[  439.808863]  ? __switch_to_asm+0x34/0x70
[  439.812944]  ? __switch_to_asm+0x34/0x70
[  439.816997]  ? __switch_to_asm+0x40/0x70
[  439.821049]  ? __switch_to_asm+0x34/0x70
[  439.825102]  ? __switch_to_asm+0x40/0x70
[  439.829159]  ? __switch_to_asm+0x34/0x70
[  439.833216]  ? __switch_to_asm+0x40/0x70
[  439.837273]  ? __switch_to_asm+0x34/0x70
[  439.841328]  ? __switch_to_asm+0x34/0x70
[  439.845380]  ? __switch_to_asm+0x40/0x70
[  439.849440]  ? __switch_to_asm+0x34/0x70
[  439.853507]  bpf_clone_redirect+0xb9/0x490
[  439.857737]  ? __schedule+0x8d7/0x21d0
[  439.861628]  bpf_prog_bebbfe2050753572+0x509/0x1000
[  439.866645]  ? __sched_text_start+0x8/0x8
[  439.870789]  ? retint_kernel+0x2d/0x2d
[  439.874680]  ? find_held_lock+0x36/0x1c0
[  439.878748]  ? lock_acquire+0x1ed/0x520
[  439.882729]  ? bpf_test_run+0x3cb/0x780
[  439.886698]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.892231]  ? check_preemption_disabled+0x48/0x280
[  439.897247]  ? kasan_check_read+0x11/0x20
[  439.901392]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.906670]  ? rcu_softirq_qs+0x20/0x20
[  439.910651]  ? preempt_schedule+0x4d/0x60
[  439.914798]  ? ___preempt_schedule+0x16/0x18
[  439.919211]  ? bpf_test_run+0x25d/0x780
[  439.923194]  ? netlink_diag_dump+0x2a0/0x2a0
[  439.927601]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.933133]  ? bpf_test_init.isra.10+0x70/0x100
[  439.937805]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  439.942563]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  439.947401]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  439.952959]  ? fput+0x130/0x1a0
[  439.956244]  ? __bpf_prog_get+0x9b/0x290
[  439.960303]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  439.965139]  ? bpf_prog_test_run+0x130/0x1a0
[  439.969552]  ? __x64_sys_bpf+0x3d8/0x520
[  439.973607]  ? bpf_prog_get+0x20/0x20
[  439.977443]  ? do_syscall_64+0x1b9/0x820
[  439.981498]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  439.986870]  ? syscall_return_slowpath+0x5e0/0x5e0
[  439.991813]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.996685]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.001700]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  440.006716]  ? prepare_exit_to_usermode+0x291/0x3b0
[  440.011735]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.016577]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  440.021956] CPU: 0 PID: 5944 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #141
[  440.022021] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  440.028966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  440.028971] Call Trace:
[  440.028976]  <IRQ>
[  440.029005]  dump_stack+0x244/0x39d
[  440.029024]  ? dump_stack_print_info.cold.1+0x20/0x20
[  440.035540] syz-executor2: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  440.044838]  warn_alloc.cold.116+0xb7/0x1bd
[  440.047389] syz-executor2 cpuset=syz2 mems_allowed=0
[  440.049529]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  440.082979]  ? lock_downgrade+0x900/0x900
[  440.087132]  ? trace_hardirqs_off+0xb8/0x310
[  440.091545]  ? trace_hardirqs_off+0xb8/0x310
[  440.095960]  __alloc_pages_slowpath+0x26e8/0x2e10
[  440.100823]  ? warn_alloc+0x120/0x120
[  440.104629]  ? __lock_acquire+0x62f/0x4c20
[  440.108864]  ? warn_alloc+0x120/0x120
[  440.112838]  ? warn_alloc+0x120/0x120
[  440.116643]  ? print_usage_bug+0xc0/0xc0
[  440.120702]  ? print_usage_bug+0xc0/0xc0
[  440.124762]  ? nohz_balance_enter_idle+0x6c0/0x6c0
[  440.129703]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.135233]  ? should_fail+0x22d/0xd01
[  440.139120]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.144218]  ? __lock_acquire+0x62f/0x4c20
[  440.148451]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.153551]  ? __lock_acquire+0x62f/0x4c20
[  440.157779]  ? should_fail+0x22d/0xd01
[  440.161681]  ? mark_held_locks+0x130/0x130
[  440.165923]  ? mark_held_locks+0x130/0x130
[  440.170152]  ? zap_class+0x640/0x640
[  440.173876]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.179413]  ? zap_class+0x640/0x640
[  440.183120]  ? print_usage_bug+0xc0/0xc0
[  440.187178]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.192712]  ? check_preemption_disabled+0x48/0x280
[  440.197731]  ? __lock_is_held+0xb5/0x140
[  440.201793]  __alloc_pages_nodemask+0xa80/0xde0
[  440.206472]  ? zap_class+0x640/0x640
[  440.210192]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  440.215215]  ? find_held_lock+0x36/0x1c0
[  440.219281]  ? ____cache_alloc_node+0x1c7/0x1e0
[  440.223945]  ? lock_downgrade+0x900/0x900
[  440.228097]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.233638]  cache_grow_begin+0xa5/0x8c0
[  440.237694]  ? do_raw_spin_unlock+0xa7/0x330
[  440.242112]  fallback_alloc+0x204/0x2e0
[  440.246088]  ____cache_alloc_node+0x1c7/0x1e0
[  440.250585]  kmem_cache_alloc_node+0xe3/0x730
[  440.255077]  ? ipv6_get_ifaddr+0x42e/0x620
[  440.259320]  __alloc_skb+0x119/0x770
[  440.263030]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.268306]  ? netdev_alloc_frag+0x1f0/0x1f0
[  440.272710]  ? lock_downgrade+0x900/0x900
[  440.276866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.282399]  ? refcount_sub_and_test_checked+0x203/0x310
[  440.287857]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  440.293302]  ? addrconf_rs_timer+0x690/0x690
[  440.297718]  ndisc_alloc_skb+0x144/0x340
[  440.301793]  ndisc_send_rs+0x331/0x6e0
[  440.305688]  addrconf_rs_timer+0x314/0x690
[  440.309925]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.314164]  call_timer_fn+0x272/0x920
[  440.318050]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.322280]  ? process_timeout+0x40/0x40
[  440.326344]  ? mark_held_locks+0xc7/0x130
[  440.330491]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.334977]  ? _raw_spin_unlock_irq+0x27/0x80
[  440.339467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.343695]  ? lockdep_hardirqs_on+0x296/0x5b0
[  440.348274]  ? trace_hardirqs_on+0xbd/0x310
[  440.352591]  ? kasan_check_read+0x11/0x20
[  440.357092]  ? __run_timers+0x7da/0xc70
[  440.361060]  ? trace_hardirqs_off_caller+0x310/0x310
[  440.366160]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.370407]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  440.374636]  __run_timers+0x7e5/0xc70
[  440.378444]  ? timer_fixup_init+0x70/0x70
[  440.382590]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  440.387600]  ? zap_class+0x640/0x640
[  440.391312]  ? print_usage_bug+0xc0/0xc0
[  440.395382]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  440.400587]  ? find_held_lock+0x36/0x1c0
[  440.404665]  ? zap_class+0x640/0x640
[  440.408390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.413926]  ? check_preemption_disabled+0x48/0x280
[  440.418949]  ? __lock_is_held+0xb5/0x140
[  440.423008]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.428541]  ? check_preemption_disabled+0x48/0x280
[  440.433558]  run_timer_softirq+0x52/0xb0
[  440.437617]  ? rcu_read_lock_sched_held+0x14f/0x180
[  440.442631]  __do_softirq+0x308/0xb7e
[  440.446431]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  440.450924]  ? lock_downgrade+0x900/0x900
[  440.455074]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  440.460177]  ? pvclock_read_flags+0x160/0x160
[  440.464672]  ? lapic_next_event+0x5a/0x90
[  440.468817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.474372]  ? kvm_clock_read+0x18/0x30
[  440.478344]  ? kvm_sched_clock_read+0x9/0x20
[  440.482749]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.488281]  ? check_preemption_disabled+0x48/0x280
[  440.493314]  irq_exit+0x17f/0x1c0
[  440.496763]  smp_apic_timer_interrupt+0x1cb/0x760
[  440.501605]  ? smp_call_function_single_interrupt+0x650/0x650
[  440.507483]  ? interrupt_entry+0xb5/0xc0
[  440.511549]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.516643]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.521656]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.526513]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.531523]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.536530]  ? task_prio+0x50/0x50
[  440.540077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.545609]  ? check_preemption_disabled+0x48/0x280
[  440.550628]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.555471]  apic_timer_interrupt+0xf/0x20
[  440.559694]  </IRQ>
[  440.561929] RIP: 0010:dump_stack+0x358/0x39d
[  440.566332] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 55 fb f9 48 83 3d 19 78 8a 01 00 0f 84 63 fe ff ff e8 0e 07 b8 f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 06 b8 f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  440.585223] RSP: 0000:ffff8801b38ee1e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  440.592921] RAX: ffff8801c263a340 RBX: 1ffffffff12a3f76 RCX: 1ffff100384c7586
[  440.600184] RDX: 0000000000000000 RSI: ffffffff87c783a2 RDI: 0000000000000293
[  440.607451] RBP: ffff8801b38ee290 R08: ffff8801c263ac30 R09: 0000000000000006
[  440.614714] R10: 0000000000000000 R11: ffff8801c263a340 R12: 1ffff1003671dc45
[  440.622074] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  440.629353]  ? dump_stack+0x34f/0x39d
[  440.633165]  ? dump_stack_print_info.cold.1+0x20/0x20
[  440.638456]  ? mark_held_locks+0x130/0x130
[  440.642683]  ? mark_held_locks+0x130/0x130
[  440.646917]  dump_header+0x27b/0xf72
[  440.650647]  ? pagefault_out_of_memory+0x197/0x197
[  440.655578]  ? __lock_acquire+0x62f/0x4c20
[  440.659814]  ? percpu_ref_get_many+0x240/0x240
[  440.664394]  ? print_usage_bug+0xc0/0xc0
[  440.668456]  ? zap_class+0x640/0x640
[  440.672169]  ? print_usage_bug+0xc0/0xc0
[  440.676227]  ? print_usage_bug+0xc0/0xc0
[  440.680288]  ? zap_class+0x640/0x640
[  440.683997]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.689536]  ? find_held_lock+0x36/0x1c0
[  440.693601]  ? mark_held_locks+0xc7/0x130
[  440.697745]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  440.702840]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  440.707960]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  440.712540]  ? trace_hardirqs_on+0xbd/0x310
[  440.716859]  ? kasan_check_read+0x11/0x20
[  440.721005]  ? ___ratelimit+0x3b4/0x672
[  440.724978]  ? trace_hardirqs_off_caller+0x310/0x310
[  440.730081]  ? trace_hardirqs_on+0x310/0x310
[  440.734488]  ? lock_downgrade+0x900/0x900
[  440.738634]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  440.743748]  ? ___ratelimit+0x3b9/0x672
[  440.747721]  ? idr_get_free+0xf70/0xf70
[  440.751691]  ? find_held_lock+0x36/0x1c0
[  440.755756]  oom_kill_process.cold.27+0x10/0x903
[  440.760507]  ? zap_class+0x640/0x640
[  440.764215]  ? check_preemption_disabled+0x48/0x280
[  440.769232]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.774168]  ? kasan_check_read+0x11/0x20
[  440.778331]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.783606]  ? oom_evaluate_task+0x540/0x540
[  440.788011]  ? find_held_lock+0x36/0x1c0
[  440.792070]  ? out_of_memory+0x974/0x1430
[  440.796565]  ? lock_downgrade+0x900/0x900
[  440.800704]  ? check_preemption_disabled+0x48/0x280
[  440.805723]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.810644]  ? kasan_check_read+0x11/0x20
[  440.814785]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.820061]  ? rcu_softirq_qs+0x20/0x20
[  440.824035]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.829565]  ? oom_evaluate_task+0x302/0x540
[  440.833972]  out_of_memory+0xa84/0x1430
[  440.837949]  ? oom_killer_disable+0x3a0/0x3a0
[  440.842444]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  440.847391]  ? __ww_mutex_check_waiters+0x160/0x160
[  440.852413]  __alloc_pages_slowpath+0x2354/0x2e10
[  440.857280]  ? warn_alloc+0x120/0x120
[  440.861074]  ? mark_held_locks+0x130/0x130
[  440.865319]  ? find_get_entry+0xaae/0x1120
[  440.869560]  ? filemap_map_pages+0x1a20/0x1a20
[  440.874506]  ? zap_class+0x640/0x640
[  440.878219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.883755]  ? check_preemption_disabled+0x48/0x280
[  440.888769]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.894730]  ? should_fail+0x22d/0xd01
[  440.898619]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.903718]  ? zap_class+0x640/0x640
[  440.907451]  ? __lock_is_held+0xb5/0x140
[  440.911515]  ? mark_held_locks+0x130/0x130
[  440.915745]  ? lock_release+0xa00/0xa00
[  440.919718]  ? perf_trace_sched_process_exec+0x860/0x860
[  440.925255]  ? xa_load+0x2ba/0x460
[  440.928913]  ? lock_downgrade+0x900/0x900
[  440.933062]  ? __might_sleep+0x95/0x190
[  440.937052]  __alloc_pages_nodemask+0xa80/0xde0
[  440.941726]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  440.946739]  ? __page_cache_alloc+0x191/0x5c0
[  440.951229]  ? xa_load+0x2e1/0x460
[  440.954765]  ? xa_clear_mark+0x40/0x40
[  440.958657]  ? zap_class+0x640/0x640
[  440.962372]  ? zap_class+0x640/0x640
[  440.966081]  ? zap_class+0x640/0x640
[  440.969795]  ? __do_page_cache_readahead+0x663/0x810
[  440.974903]  ? find_held_lock+0x36/0x1c0
[  440.978981]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  440.984523]  alloc_pages_current+0x173/0x350
[  440.988930]  __page_cache_alloc+0x38c/0x5c0
[  440.993246]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.998187]  ? kasan_check_read+0x11/0x20
[  441.002337]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.007616]  ? generic_perform_write+0x6a0/0x6a0
[  441.012370]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.017903]  ? check_preemption_disabled+0x48/0x280
[  441.022927]  filemap_fault+0x1595/0x25f0
[  441.026999]  ? __lock_page_or_retry+0xa00/0xa00
[  441.031667]  ? mark_held_locks+0x130/0x130
[  441.035912]  ? filemap_map_pages+0xd6b/0x1a20
[  441.040403]  ? lock_downgrade+0x900/0x900
[  441.044544]  ? check_preemption_disabled+0x48/0x280
[  441.049561]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.054483]  ? kasan_check_read+0x11/0x20
[  441.058919]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.064189]  ? rcu_softirq_qs+0x20/0x20
[  441.068171]  ? filemap_map_pages+0xd92/0x1a20
[  441.072678]  ? find_get_entries_tag+0x1400/0x1400
[  441.077517]  ? find_held_lock+0x36/0x1c0
[  441.081593]  ? lock_acquire+0x1ed/0x520
[  441.085565]  ? ext4_filemap_fault+0x7a/0xad
[  441.089889]  ? lock_release+0xa00/0xa00
[  441.093859]  ? perf_trace_sched_process_exec+0x860/0x860
[  441.099315]  ? print_usage_bug+0xc0/0xc0
[  441.103389]  ? down_read+0x8d/0x120
[  441.107010]  ? ext4_filemap_fault+0x7a/0xad
[  441.111327]  ? __down_interruptible+0x700/0x700
[  441.115992]  ? find_held_lock+0x36/0x1c0
[  441.120057]  ext4_filemap_fault+0x82/0xad
[  441.124206]  __do_fault+0x100/0x6b0
[  441.127836]  ? lock_downgrade+0x900/0x900
[  441.131978]  ? pmd_devmap_trans_unstable+0x220/0x220
[  441.137082]  ? kasan_check_read+0x11/0x20
[  441.141224]  ? do_raw_spin_unlock+0xa7/0x330
[  441.145625]  ? do_raw_spin_trylock+0x270/0x270
[  441.150215]  __handle_mm_fault+0x3ea0/0x5be0
[  441.154622]  ? perf_trace_lock+0x7a0/0x7a0
[  441.158858]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  441.163699]  ? __switch_to_asm+0x34/0x70
[  441.167751]  ? __switch_to_asm+0x34/0x70
[  441.171827]  ? zap_class+0x640/0x640
[  441.175541]  ? zap_class+0x640/0x640
[  441.179251]  ? __x64_sys_futex+0x53e/0x6a0
[  441.183483]  ? find_held_lock+0x36/0x1c0
[  441.187549]  ? handle_mm_fault+0x42a/0xc70
[  441.191786]  ? lock_downgrade+0x900/0x900
[  441.195932]  ? check_preemption_disabled+0x48/0x280
[  441.200948]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  441.205871]  ? kasan_check_read+0x11/0x20
[  441.210016]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.215287]  ? rcu_softirq_qs+0x20/0x20
[  441.219262]  ? trace_hardirqs_off_caller+0x310/0x310
[  441.224375]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.229907]  ? check_preemption_disabled+0x48/0x280
[  441.234937]  handle_mm_fault+0x54f/0xc70
[  441.238995]  ? __handle_mm_fault+0x5be0/0x5be0
[  441.243580]  ? find_vma+0x34/0x190
[  441.247137]  __do_page_fault+0x5e8/0xe60
[  441.251195]  ? trace_hardirqs_off+0xb8/0x310
[  441.255620]  do_page_fault+0xf2/0x7e0
[  441.259420]  ? vmalloc_sync_all+0x30/0x30
[  441.263562]  ? error_entry+0x70/0xd0
[  441.267271]  ? trace_hardirqs_off_caller+0xbb/0x310
[  441.272279]  ? trace_hardirqs_on_caller+0xc0/0x310
[  441.277207]  ? syscall_return_slowpath+0x5e0/0x5e0
[  441.282255]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.287096]  ? trace_hardirqs_on_caller+0x310/0x310
[  441.292105]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  441.297557]  ? prepare_exit_to_usermode+0x291/0x3b0
[  441.302563]  ? page_fault+0x8/0x30
[  441.306099]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.310936]  ? page_fault+0x8/0x30
[  441.314473]  page_fault+0x1e/0x30
[  441.317920] RIP: 0033:0x404068
[  441.321120] Code: Bad RIP value.
[  441.324479] RSP: 002b:000000c42001fe48 EFLAGS: 00010206
[  441.329834] RAX: 000000c427604ba0 RBX: 000000c420153801 RCX: 000000c424d37dd8
[  441.337099] RDX: 000000c427604ba0 RSI: 0000000000000001 RDI: 0000000000000001
[  441.344359] RBP: 000000c42001fed8 R08: 00007ffcea19e0b0 R09: 00007ffcea19e080
[  441.351619] R10: 000000000000ef3c R11: 000000000000013d R12: 0000000000000001
[  441.358886] R13: 000000c429c2fb00 R14: 0000000000000001 R15: 0000000000000000
[  441.366177] CPU: 1 PID: 15607 Comm: syz-executor2 Not tainted 4.20.0-rc1+ #141
[  441.366182] warn_alloc_show_mem: 1 callbacks suppressed
[  441.366188] Mem-Info:
[  441.373887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  441.379248] active_anon:51522 inactive_anon:4367 isolated_anon:0
[  441.379248]  active_file:13 inactive_file:13 isolated_file:0
[  441.379248]  unevictable:0 dirty:0 writeback:0 unstable:0
[  441.379248]  slab_reclaimable:9406 slab_unreclaimable:1452158
[  441.379248]  mapped:32791 shmem:4458 pagetables:592 bounce:0
[  441.379248]  free:13747 free_pcp:348 free_cma:0
[  441.381616] Call Trace:
[  441.390992] Node 0 active_anon:206088kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:131164kB dirty:0kB writeback:0kB shmem:17832kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 190464kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  441.424089]  <IRQ>
[  441.426668] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB 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
[  441.454503]  dump_stack+0x244/0x39d
[  441.456627] lowmem_reserve[]: 0 2818 6321 6321
[  441.482726]  ? dump_stack_print_info.cold.1+0x20/0x20
[  441.486320] Node 0 DMA32 free:25248kB min:30052kB low:37564kB high:45076kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  441.490936]  warn_alloc.cold.116+0xb7/0x1bd
[  441.496081] lowmem_reserve[]: 0 0 3503 3503
[  441.523674]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  441.528063] Node 0 Normal free:13832kB min:37364kB low:46704kB high:56044kB active_anon:205888kB inactive_anon:17468kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6752kB pagetables:2368kB bounce:0kB free_pcp:1144kB local_pcp:420kB free_cma:0kB
[  441.532376]  ? lock_downgrade+0x900/0x900
[  441.537185] lowmem_reserve[]: 0 0 0 0
[  441.566345]  ? trace_hardirqs_off+0xb8/0x310
[  441.570459] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  441.574873]  ? trace_hardirqs_off+0xb8/0x310
[  441.579253] Node 0 DMA32: 4*4kB (UM) 2*8kB (M) 0*16kB 2*32kB (UM) 3*64kB (M) 5*128kB (M) 5*256kB (UM) 5*512kB (UM) 4*1024kB (UM) 2*2048kB (UM) 3*4096kB (M) = 25248kB
[  441.592880]  __alloc_pages_slowpath+0x26e8/0x2e10
[  441.597256] Node 0 Normal: 742*4kB (UME) 296*8kB (UME) 167*16kB (UME) 87*32kB (UME) 34*64kB (M) 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 13864kB
[  441.612184]  ? warn_alloc+0x120/0x120
[  441.617002] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  441.632158]  ? print_usage_bug+0xc0/0xc0
[  441.635935] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  441.644756]  ? warn_alloc+0x120/0x120
[  441.648788] 4484 total pagecache pages
[  441.648805] 0 pages in swap cache
[  441.657364]  ? warn_alloc+0x120/0x120
[  441.661136] Swap cache stats: add 0, delete 0, find 0/0
[  441.665006]  ? print_usage_bug+0xc0/0xc0
[  441.668542] Free swap  = 0kB
[  441.672330]  ? print_usage_bug+0xc0/0xc0
[  441.677661] Total swap = 0kB
[  441.681887]  ? __lock_acquire+0x62f/0x4c20
[  441.684875] 1965979 pages RAM
[  441.688929]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.691909] 0 pages HighMem/MovableOnly
[  441.691916] 342854 pages reserved
[  441.696136]  ? should_fail+0x22d/0xd01
[  441.699210] 0 pages cma reserved
[  441.704820]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.708838] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  441.712210]  ? __lock_acquire+0x62f/0x4c20
[  441.716192] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  441.719438]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.724513] syz-fuzzer cpuset=/ mems_allowed=0
[  441.730989]  ? __lock_acquire+0x62f/0x4c20
[  441.731004]  ? should_fail+0x22d/0xd01
[  441.763170]  ? find_held_lock+0x36/0x1c0
[  441.767233]  ? mark_held_locks+0x130/0x130
[  441.771473]  ? mark_held_locks+0x130/0x130
[  441.775701]  ? zap_class+0x640/0x640
[  441.779443]  ? zap_class+0x640/0x640
[  441.783154]  ? print_usage_bug+0xc0/0xc0
[  441.787220]  ? do_raw_spin_unlock+0xa7/0x330
[  441.791723]  ? zap_class+0x640/0x640
[  441.795431]  ? print_usage_bug+0xc0/0xc0
[  441.799541]  ? wq_watchdog_touch+0x9c/0xfe
[  441.803861]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.809392]  ? check_preemption_disabled+0x48/0x280
[  441.814424]  ? __lock_is_held+0xb5/0x140
[  441.818485]  __alloc_pages_nodemask+0xa80/0xde0
[  441.823151]  ? zap_class+0x640/0x640
[  441.826866]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  441.831888]  ? find_held_lock+0x36/0x1c0
[  441.835956]  ? ____cache_alloc_node+0x1c7/0x1e0
[  441.840722]  ? lock_downgrade+0x900/0x900
[  441.844873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.850409]  cache_grow_begin+0xa5/0x8c0
[  441.854466]  ? do_raw_spin_unlock+0xa7/0x330
[  441.858878]  fallback_alloc+0x204/0x2e0
[  441.863045]  ____cache_alloc_node+0x1c7/0x1e0
[  441.867545]  kmem_cache_alloc_node+0xe3/0x730
[  441.872124]  ? ipv6_get_ifaddr+0x42e/0x620
[  441.876364]  __alloc_skb+0x119/0x770
[  441.880072]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.885349]  ? netdev_alloc_frag+0x1f0/0x1f0
[  441.889757]  ? lock_downgrade+0x900/0x900
[  441.893910]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.899442]  ? refcount_sub_and_test_checked+0x203/0x310
[  441.904896]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  441.910352]  ? addrconf_rs_timer+0x690/0x690
[  441.914771]  ndisc_alloc_skb+0x144/0x340
[  441.918837]  ndisc_send_rs+0x331/0x6e0
[  441.922731]  addrconf_rs_timer+0x314/0x690
[  441.926968]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.931208]  call_timer_fn+0x272/0x920
[  441.935088]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.939316]  ? process_timeout+0x40/0x40
[  441.943399]  ? __run_timers+0x7da/0xc70
[  441.947375]  ? _raw_spin_unlock_irq+0x27/0x80
[  441.951865]  ? _raw_spin_unlock_irq+0x27/0x80
[  441.956367]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.960609]  ? lockdep_hardirqs_on+0x296/0x5b0
[  441.965187]  ? trace_hardirqs_on+0xbd/0x310
[  441.969516]  ? kasan_check_read+0x11/0x20
[  441.973656]  ? __run_timers+0x7da/0xc70
[  441.977643]  ? trace_hardirqs_off_caller+0x310/0x310
[  441.982762]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.986994]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  441.991223]  __run_timers+0x7e5/0xc70
[  441.995029]  ? timer_fixup_init+0x70/0x70
[  441.999185]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  442.004196]  ? zap_class+0x640/0x640
[  442.007916]  ? enqueue_hrtimer+0x1a5/0x560
[  442.012165]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  442.017354]  ? find_held_lock+0x36/0x1c0
[  442.021413]  ? zap_class+0x640/0x640
[  442.025137]  ? pvclock_read_flags+0x160/0x160
[  442.029626]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.035161]  ? check_preemption_disabled+0x48/0x280
[  442.040184]  ? __lock_is_held+0xb5/0x140