  354.997466]  ? rcu_softirq_qs+0x20/0x20
[  355.001472]  ? filemap_map_pages+0xd92/0x1a20
[  355.005985]  ? find_get_entries_tag+0x1400/0x1400
[  355.010836]  ? debug_object_destroy+0x2b0/0x2b0
[  355.015515]  ? lock_pi_update_atomic+0x150/0x150
[  355.020278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.025830]  ? lock_acquire+0x1ed/0x520
[  355.029809]  ? ext4_filemap_fault+0x7a/0xad
[  355.034154]  ? lock_release+0xa00/0xa00
[  355.038151]  ? perf_trace_sched_process_exec+0x860/0x860
[  355.043603]  ? print_usage_bug+0xc0/0xc0
[  355.047671]  ? print_usage_bug+0xc0/0xc0
[  355.051763]  ? down_read+0x8d/0x120
[  355.055423]  ? ext4_filemap_fault+0x7a/0xad
[  355.059749]  ? __down_interruptible+0x700/0x700
[  355.064436]  ext4_filemap_fault+0x82/0xad
[  355.068603]  __do_fault+0x100/0x6b0
[  355.072233]  ? find_held_lock+0x36/0x1c0
[  355.076305]  ? pmd_devmap_trans_unstable+0x220/0x220
[  355.081975]  ? mark_held_locks+0x130/0x130
[  355.086216]  ? mark_held_locks+0x130/0x130
[  355.090462]  ? kasan_check_read+0x11/0x20
[  355.094612]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  355.100174]  __handle_mm_fault+0x3ea0/0x5be0
[  355.104598]  ? perf_trace_lock+0x7a0/0x7a0
[  355.108873]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  355.113756]  ? __switch_to_asm+0x34/0x70
[  355.117850]  ? __switch_to_asm+0x34/0x70
[  355.121926]  ? zap_class+0x640/0x640
[  355.125640]  ? zap_class+0x640/0x640
[  355.129357]  ? __x64_sys_futex+0x53e/0x6a0
[  355.133613]  ? find_held_lock+0x36/0x1c0
[  355.137715]  ? handle_mm_fault+0x42a/0xc70
[  355.141957]  ? lock_downgrade+0x900/0x900
[  355.146117]  ? check_preemption_disabled+0x48/0x280
[  355.151142]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  355.156073]  ? kasan_check_read+0x11/0x20
[  355.160243]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.165536]  ? rcu_softirq_qs+0x20/0x20
[  355.169515]  ? trace_hardirqs_off_caller+0x310/0x310
[  355.174626]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.180166]  ? sync_mm_rss+0x9a/0x1c0
[  355.183977]  handle_mm_fault+0x54f/0xc70
[  355.188044]  ? __handle_mm_fault+0x5be0/0x5be0
[  355.192631]  ? find_vma+0x34/0x190
[  355.196185]  __do_page_fault+0x5e8/0xe60
[  355.200249]  ? trace_hardirqs_off+0xb8/0x310
[  355.204668]  do_page_fault+0xf2/0x7e0
[  355.208474]  ? vmalloc_sync_all+0x30/0x30
[  355.212625]  ? error_entry+0x70/0xd0
[  355.216342]  ? trace_hardirqs_off_caller+0xbb/0x310
[  355.221357]  ? trace_hardirqs_on_caller+0xc0/0x310
[  355.226288]  ? syscall_return_slowpath+0x5e0/0x5e0
[  355.231218]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  355.236063]  ? trace_hardirqs_on_caller+0x310/0x310
[  355.241080]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  355.246557]  ? prepare_exit_to_usermode+0x291/0x3b0
[  355.251600]  ? page_fault+0x8/0x30
[  355.255150]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  355.259997]  ? page_fault+0x8/0x30
[  355.263543]  page_fault+0x1e/0x30
[  355.267005] RIP: 0033:0x45ddf3
[  355.270212] Code: Bad RIP value.
[  355.273572] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  355.278934] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  355.286200] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  355.293468] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  355.300739] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  355.308004] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  355.315303] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  355.315309] warn_alloc_show_mem: 1 callbacks suppressed
[  355.315316] Mem-Info:
[  355.322606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  355.327972] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  355.327972]  active_file:17 inactive_file:17 isolated_file:0
[  355.327972]  unevictable:0 dirty:4 writeback:0 unstable:0
[  355.327972]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  355.327972]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  355.327972]  free:13550 free_pcp:124 free_cma:0
[  355.330344] Call Trace:
[  355.339734] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  355.372774]  <IRQ>
[  355.375345] 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
[  355.403123]  dump_stack+0x244/0x39d
[  355.405243] lowmem_reserve[]: 0 2818 6321 6321
[  355.431397]  ? dump_stack_print_info.cold.1+0x20/0x20
[  355.434992] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  355.439579]  warn_alloc.cold.116+0xb7/0x1bd
[  355.444730] lowmem_reserve[]: 0 0 3503 3503
[  355.472073]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  355.476374] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  355.480698]  ? lock_downgrade+0x900/0x900
[  355.485509] lowmem_reserve[]: 0 0 0 0
[  355.514433]  ? trace_hardirqs_off+0xb8/0x310
[  355.518568] 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
[  355.522388]  ? trace_hardirqs_off+0xb8/0x310
[  355.526763] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  355.540295]  __alloc_pages_slowpath+0x2651/0x2de0
[  355.544671] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  355.559468]  ? warn_alloc+0x120/0x120
[  355.564266] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  355.579005]  ? print_usage_bug+0xc0/0xc0
[  355.582780] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  355.591606]  ? warn_alloc+0x120/0x120
[  355.595639] 1360 total pagecache pages
[  355.604214]  ? warn_alloc+0x120/0x120
[  355.608000] 0 pages in swap cache
[  355.611875]  ? print_usage_bug+0xc0/0xc0
[  355.615676] Swap cache stats: add 0, delete 0, find 0/0
[  355.619135]  ? kvm_clock_read+0x18/0x30
[  355.623169] Free swap  = 0kB
[  355.628529]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  355.632476] Total swap = 0kB
[  355.635499]  ? print_usage_bug+0xc0/0xc0
[  355.640487] 1965979 pages RAM
[  355.643504]  ? __lock_acquire+0x62f/0x4c20
[  355.647541] 0 pages HighMem/MovableOnly
[  355.650658]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  355.654859] 342854 pages reserved
[  355.654867] 0 pages cma reserved
[  355.658840]  ? should_fail+0x22d/0xd01
[  355.664456] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  355.667792]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.667812]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  355.671276] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  355.675065]  ? __lock_acquire+0x62f/0x4c20
[  355.681531] syz-fuzzer cpuset=/ mems_allowed=0
[  355.686802]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  355.715992]  ? __lock_acquire+0x62f/0x4c20
[  355.720233]  ? should_fail+0x22d/0xd01
[  355.724127]  ? rcu_irq_exit+0x1a2/0x390
[  355.728123]  ? mark_held_locks+0x130/0x130
[  355.732365]  ? mark_held_locks+0x130/0x130
[  355.736628]  ? mark_held_locks+0xc7/0x130
[  355.740778]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  355.745807]  ? zap_class+0x640/0x640
[  355.749550]  ? print_usage_bug+0xc0/0xc0
[  355.753619]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.759165]  ? check_preemption_disabled+0x48/0x280
[  355.764205]  ? __lock_is_held+0xb5/0x140
[  355.768279]  __alloc_pages_nodemask+0xad8/0xea0
[  355.772953]  ? zap_class+0x640/0x640
[  355.776672]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  355.781701]  ? find_held_lock+0x36/0x1c0
[  355.785800]  ? ____cache_alloc_node+0x1c7/0x1e0
[  355.790491]  ? lock_downgrade+0x900/0x900
[  355.794651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.800198]  cache_grow_begin+0xa5/0x8c0
[  355.804269]  ? do_raw_spin_unlock+0xa7/0x330
[  355.808690]  fallback_alloc+0x204/0x2e0
[  355.812675]  ____cache_alloc_node+0x1c7/0x1e0
[  355.817181]  kmem_cache_alloc_node+0xe3/0x730
[  355.821681]  ? ipv6_get_ifaddr+0x42e/0x620
[  355.825931]  __alloc_skb+0x119/0x770
[  355.829646]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.834944]  ? netdev_alloc_frag+0x1f0/0x1f0
[  355.839358]  ? lock_downgrade+0x900/0x900
[  355.843531]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.849088]  ? refcount_sub_and_test_checked+0x203/0x310
[  355.854555]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  355.860014]  ? addrconf_rs_timer+0x690/0x690
[  355.864438]  ndisc_alloc_skb+0x144/0x340
[  355.868508]  ndisc_send_rs+0x331/0x6e0
[  355.872406]  addrconf_rs_timer+0x314/0x690
[  355.876653]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.880902]  call_timer_fn+0x272/0x920
[  355.884802]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.889041]  ? process_timeout+0x40/0x40
[  355.893120]  ? __run_timers+0x7da/0xc70
[  355.897100]  ? _raw_spin_unlock_irq+0x27/0x80
[  355.901622]  ? _raw_spin_unlock_irq+0x27/0x80
[  355.906128]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.910369]  ? lockdep_hardirqs_on+0x296/0x5b0
[  355.914966]  ? trace_hardirqs_on+0xbd/0x310
[  355.919290]  ? kasan_check_read+0x11/0x20
[  355.923439]  ? __run_timers+0x7da/0xc70
[  355.927418]  ? trace_hardirqs_off_caller+0x310/0x310
[  355.932529]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.936791]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  355.941029]  __run_timers+0x7e5/0xc70
[  355.944868]  ? timer_fixup_init+0x70/0x70
[  355.949019]  ? kasan_check_read+0x11/0x20
[  355.953171]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  355.958464]  ? rcu_softirq_qs+0x20/0x20
[  355.962450]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  355.967991]  ? check_preemption_disabled+0x48/0x280
[  355.973018]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  355.977779]  ? retint_kernel+0x2d/0x2d
[  355.981684]  ? trace_hardirqs_on_caller+0xc0/0x310
[  355.986621]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  355.991387]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  355.996872]  ? zap_class+0x640/0x640
[  356.000610]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.006162]  ? check_preemption_disabled+0x48/0x280
[  356.011189]  ? __lock_is_held+0xb5/0x140
[  356.015256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.020796]  ? check_preemption_disabled+0x48/0x280
[  356.025832]  run_timer_softirq+0x52/0xb0
[  356.029897]  ? rcu_read_lock_sched_held+0x14f/0x180
[  356.034923]  __do_softirq+0x308/0xb7e
[  356.038732]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  356.043229]  ? lock_downgrade+0x900/0x900
[  356.047440]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  356.052588]  ? pvclock_read_flags+0x160/0x160
[  356.057092]  ? lapic_next_event+0x5a/0x90
[  356.061269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.066833]  ? kvm_clock_read+0x18/0x30
[  356.070822]  ? kvm_sched_clock_read+0x9/0x20
[  356.075237]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.080784]  ? check_preemption_disabled+0x48/0x280
[  356.085813]  irq_exit+0x17f/0x1c0
[  356.089276]  smp_apic_timer_interrupt+0x1cb/0x760
[  356.094129]  ? smp_reschedule_interrupt+0x109/0x650
[  356.099151]  ? smp_call_function_single_interrupt+0x650/0x650
[  356.105052]  ? interrupt_entry+0xb5/0xc0
[  356.109130]  ? trace_hardirqs_off_caller+0xbb/0x310
[  356.114153]  ? trace_hardirqs_off_caller+0xbb/0x310
[  356.119174]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  356.124022]  ? trace_hardirqs_on_caller+0x310/0x310
[  356.129041]  ? trace_hardirqs_on_caller+0x310/0x310
[  356.134059]  ? task_prio+0x50/0x50
[  356.137605]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.143148]  ? check_preemption_disabled+0x48/0x280
[  356.148175]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  356.153044]  apic_timer_interrupt+0xf/0x20
[  356.157292]  </IRQ>
[  356.159548] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  356.164481] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  356.183395] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  356.191122] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  356.198407] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  356.205677] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  356.212947] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  356.220221] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  356.227544]  skb_clone+0x1bb/0x500
[  356.231089]  ? skb_split+0x11e0/0x11e0
[  356.235009]  ? preempt_notifier_register+0x200/0x200
[  356.240134]  ? __switch_to_asm+0x34/0x70
[  356.244211]  ? __switch_to_asm+0x34/0x70
[  356.248271]  ? __switch_to_asm+0x40/0x70
[  356.252333]  ? __switch_to_asm+0x34/0x70
[  356.256400]  ? __switch_to_asm+0x40/0x70
[  356.260460]  ? __switch_to_asm+0x40/0x70
[  356.264521]  ? __switch_to_asm+0x34/0x70
[  356.268580]  ? __switch_to_asm+0x34/0x70
[  356.272644]  ? __switch_to_asm+0x40/0x70
[  356.276705]  ? __switch_to_asm+0x34/0x70
[  356.280772]  bpf_clone_redirect+0xb9/0x490
[  356.285021]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  356.290056]  ? __sched_text_start+0x8/0x8
[  356.294217]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  356.299001]  ? find_held_lock+0x36/0x1c0
[  356.303078]  ? lock_acquire+0x1ed/0x520
[  356.307063]  ? bpf_test_run+0x3ee/0x7a0
[  356.311045]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.316591]  ? check_preemption_disabled+0x48/0x280
[  356.321617]  ? kasan_check_read+0x11/0x20
[  356.325780]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.331071]  ? rcu_softirq_qs+0x20/0x20
[  356.335062]  ? preempt_schedule+0x4d/0x60
[  356.339218]  ? ___preempt_schedule+0x16/0x18
[  356.343639]  ? bpf_test_run+0x271/0x7a0
[  356.347627]  ? netlink_diag_dump+0x2a0/0x2a0
[  356.352076]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.357651]  ? bpf_test_init.isra.10+0x70/0x100
[  356.362356]  ? bpf_prog_test_run_skb+0x762/0xd60
[  356.367153]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  356.372019]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  356.377560]  ? fput+0x130/0x1a0
[  356.380846]  ? __bpf_prog_get+0x9b/0x290
[  356.384918]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  356.389766]  ? bpf_prog_test_run+0x130/0x1a0
[  356.394200]  ? __x64_sys_bpf+0x3d8/0x520
[  356.398261]  ? bpf_prog_get+0x20/0x20
[  356.402083]  ? do_syscall_64+0x1b9/0x820
[  356.406152]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  356.411518]  ? syscall_return_slowpath+0x5e0/0x5e0
[  356.416447]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  356.421297]  ? trace_hardirqs_on_caller+0x310/0x310
[  356.426319]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  356.431344]  ? prepare_exit_to_usermode+0x291/0x3b0
[  356.436371]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  356.441251]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  356.446638] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  356.446801] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  356.453569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  356.453574] Call Trace:
[  356.453581]  <IRQ>
[  356.453599]  dump_stack+0x244/0x39d
[  356.453618]  ? dump_stack_print_info.cold.1+0x20/0x20
[  356.453644]  warn_alloc.cold.116+0xb7/0x1bd
[  356.460310] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  356.469495]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  356.472050] syz-executor4 cpuset=syz4 mems_allowed=0
[  356.474224]  ? lock_downgrade+0x900/0x900
[  356.511853]  ? trace_hardirqs_off+0xb8/0x310
[  356.516295]  ? trace_hardirqs_off+0xb8/0x310
[  356.520720]  __alloc_pages_slowpath+0x2651/0x2de0
[  356.525598]  ? warn_alloc+0x120/0x120
[  356.529417]  ? print_usage_bug+0xc0/0xc0
[  356.533480]  ? warn_alloc+0x120/0x120
[  356.537288]  ? warn_alloc+0x120/0x120
[  356.541114]  ? print_usage_bug+0xc0/0xc0
[  356.545204]  ? kvm_clock_read+0x18/0x30
[  356.549205]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  356.554228]  ? print_usage_bug+0xc0/0xc0
[  356.558295]  ? __lock_acquire+0x62f/0x4c20
[  356.562536]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.568090]  ? should_fail+0x22d/0xd01
[  356.571988]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.577270]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  356.582379]  ? __lock_acquire+0x62f/0x4c20
[  356.586617]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  356.591744]  ? __lock_acquire+0x62f/0x4c20
[  356.595980]  ? should_fail+0x22d/0xd01
[  356.599863]  ? rcu_irq_exit+0x1a2/0x390
[  356.603853]  ? mark_held_locks+0x130/0x130
[  356.608096]  ? mark_held_locks+0x130/0x130
[  356.612363]  ? mark_held_locks+0xc7/0x130
[  356.616514]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  356.621536]  ? zap_class+0x640/0x640
[  356.625254]  ? print_usage_bug+0xc0/0xc0
[  356.629323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.634867]  ? check_preemption_disabled+0x48/0x280
[  356.639907]  ? __lock_is_held+0xb5/0x140
[  356.643978]  __alloc_pages_nodemask+0xad8/0xea0
[  356.648650]  ? zap_class+0x640/0x640
[  356.652373]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  356.657405]  ? find_held_lock+0x36/0x1c0
[  356.661606]  ? ____cache_alloc_node+0x1c7/0x1e0
[  356.666284]  ? lock_downgrade+0x900/0x900
[  356.670442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.675989]  cache_grow_begin+0xa5/0x8c0
[  356.680051]  ? do_raw_spin_unlock+0xa7/0x330
[  356.684470]  fallback_alloc+0x204/0x2e0
[  356.688454]  ____cache_alloc_node+0x1c7/0x1e0
[  356.692978]  kmem_cache_alloc_node+0xe3/0x730
[  356.697488]  ? ipv6_get_ifaddr+0x42e/0x620
[  356.701737]  __alloc_skb+0x119/0x770
[  356.705458]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  356.710742]  ? netdev_alloc_frag+0x1f0/0x1f0
[  356.715155]  ? lock_downgrade+0x900/0x900
[  356.719314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.724856]  ? refcount_sub_and_test_checked+0x203/0x310
[  356.730322]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  356.735776]  ? addrconf_rs_timer+0x690/0x690
[  356.740199]  ndisc_alloc_skb+0x144/0x340
[  356.744271]  ndisc_send_rs+0x331/0x6e0
[  356.748167]  addrconf_rs_timer+0x314/0x690
[  356.752409]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  356.756660]  call_timer_fn+0x272/0x920
[  356.760562]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  356.764796]  ? process_timeout+0x40/0x40
[  356.768886]  ? mark_held_locks+0xc7/0x130
[  356.773037]  ? _raw_spin_unlock_irq+0x27/0x80
[  356.777536]  ? _raw_spin_unlock_irq+0x27/0x80
[  356.782034]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  356.786275]  ? lockdep_hardirqs_on+0x296/0x5b0
[  356.790866]  ? trace_hardirqs_on+0xbd/0x310
[  356.795211]  ? kasan_check_read+0x11/0x20
[  356.799359]  ? __run_timers+0x7da/0xc70
[  356.803338]  ? trace_hardirqs_off_caller+0x310/0x310
[  356.808453]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  356.812696]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  356.816935]  __run_timers+0x7e5/0xc70
[  356.820749]  ? timer_fixup_init+0x70/0x70
[  356.824914]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  356.829941]  ? zap_class+0x640/0x640
[  356.833664]  ? print_usage_bug+0xc0/0xc0
[  356.837729]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  356.842929]  ? find_held_lock+0x36/0x1c0
[  356.846999]  ? zap_class+0x640/0x640
[  356.850720]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.856262]  ? check_preemption_disabled+0x48/0x280
[  356.861291]  ? __lock_is_held+0xb5/0x140
[  356.865368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.870912]  ? check_preemption_disabled+0x48/0x280
[  356.875932]  run_timer_softirq+0x52/0xb0
[  356.879999]  ? rcu_read_lock_sched_held+0x14f/0x180
[  356.885018]  __do_softirq+0x308/0xb7e
[  356.888826]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  356.893365]  ? lock_downgrade+0x900/0x900
[  356.897525]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  356.902641]  ? pvclock_read_flags+0x160/0x160
[  356.907149]  ? lapic_next_event+0x5a/0x90
[  356.911305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.916863]  ? kvm_clock_read+0x18/0x30
[  356.920843]  ? kvm_sched_clock_read+0x9/0x20
[  356.925261]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  356.930802]  ? check_preemption_disabled+0x48/0x280
[  356.935830]  irq_exit+0x17f/0x1c0
[  356.939290]  smp_apic_timer_interrupt+0x1cb/0x760
[  356.944138]  ? smp_reschedule_interrupt+0x109/0x650
[  356.949320]  ? smp_call_function_single_interrupt+0x650/0x650
[  356.955208]  ? interrupt_entry+0xb5/0xc0
[  356.959273]  ? trace_hardirqs_off_caller+0xbb/0x310
[  356.964289]  ? trace_hardirqs_off_caller+0xbb/0x310
[  356.969313]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  356.974163]  ? trace_hardirqs_on_caller+0x310/0x310
[  356.979211]  ? trace_hardirqs_on_caller+0x310/0x310
[  356.984247]  ? task_prio+0x50/0x50
[  356.987790]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  356.993347]  ? check_preemption_disabled+0x48/0x280
[  356.998386]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  357.003260]  apic_timer_interrupt+0xf/0x20
[  357.007495]  </IRQ>
[  357.009737] RIP: 0010:lock_acquire+0x268/0x520
[  357.014324] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  357.033229] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  357.040941] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  357.048214] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  357.055489] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  357.062763] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  357.070034] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  357.077354]  ? lruvec_lru_size+0x450/0x450
[  357.082144]  ? kasan_check_read+0x11/0x20
[  357.086305]  ? lock_release+0xa00/0xa00
[  357.090290]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  357.095233]  down_read_trylock+0xda/0x140
[  357.099379]  ? shrink_slab+0x207/0x8c0
[  357.103268]  ? downgrade_write+0x270/0x270
[  357.107514]  shrink_slab+0x207/0x8c0
[  357.111231]  ? shrink_active_list+0x1f00/0x1f00
[  357.115919]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  357.121549]  ? __lock_acquire+0x62f/0x4c20
[  357.125790]  ? percpu_ref_get_many+0x240/0x240
[  357.130387]  ? print_usage_bug+0xc0/0xc0
[  357.134461]  shrink_node+0x431/0x16b0
[  357.138269]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  357.143574]  ? shrink_node_memcg+0x18f0/0x18f0
[  357.148168]  ? kvm_clock_read+0x18/0x30
[  357.152162]  ? ktime_get+0x2c1/0x400
[  357.155886]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  357.160408]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  357.165960]  ? __cpuset_node_allowed+0x19b/0x660
[  357.170720]  ? mark_held_locks+0x130/0x130
[  357.174959]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  357.180688]  ? zap_class+0x640/0x640
[  357.184441]  do_try_to_free_pages+0x3e7/0x1290
[  357.189027]  ? zap_class+0x640/0x640
[  357.192762]  ? shrink_node+0x16b0/0x16b0
[  357.196824]  ? __lock_is_held+0xb5/0x140
[  357.200922]  try_to_free_pages+0x4d0/0xb90
[  357.205163]  ? do_try_to_free_pages+0x1290/0x1290
[  357.210022]  ? lock_acquire+0x1ed/0x520
[  357.213996]  ? set_page_refcounted+0x280/0x280
[  357.218589]  ? lock_release+0xa00/0xa00
[  357.222573]  ? _raw_spin_unlock_irq+0x60/0x80
[  357.227094]  ? psi_memstall_enter+0x240/0x2b0
[  357.231614]  ? psi_memstall_tick+0x230/0x230
[  357.236040]  __alloc_pages_slowpath+0xa48/0x2de0
[  357.240846]  ? warn_alloc+0x120/0x120
[  357.244651]  ? mark_held_locks+0x130/0x130
[  357.248899]  ? find_get_entry+0xaae/0x1120
[  357.253156]  ? filemap_map_pages+0x1a20/0x1a20
[  357.257744]  ? zap_class+0x640/0x640
[  357.261464]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.267018]  ? check_preemption_disabled+0x48/0x280
[  357.272037]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.277577]  ? should_fail+0x22d/0xd01
[  357.281494]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  357.286613]  ? zap_class+0x640/0x640
[  357.290367]  ? __lock_is_held+0xb5/0x140
[  357.294487]  ? mark_held_locks+0x130/0x130
[  357.298738]  ? lock_release+0xa00/0xa00
[  357.302715]  ? perf_trace_sched_process_exec+0x860/0x860
[  357.308169]  ? xa_load+0x2ba/0x460
[  357.311713]  ? lock_downgrade+0x900/0x900
[  357.315887]  ? __might_sleep+0x95/0x190
[  357.319867]  __alloc_pages_nodemask+0xad8/0xea0
[  357.324556]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  357.329578]  ? __page_cache_alloc+0x191/0x5c0
[  357.334079]  ? xa_load+0x2e1/0x460
[  357.337630]  ? xa_clear_mark+0x40/0x40
[  357.341521]  ? zap_class+0x640/0x640
[  357.345244]  ? zap_class+0x640/0x640
[  357.348957]  ? zap_class+0x640/0x640
[  357.352675]  ? __do_page_cache_readahead+0x663/0x810
[  357.357786]  ? find_held_lock+0x36/0x1c0
[  357.361867]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  357.367418]  alloc_pages_current+0x173/0x350
[  357.371838]  __page_cache_alloc+0x38c/0x5c0
[  357.376165]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  357.381099]  ? kasan_check_read+0x11/0x20
[  357.385263]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  357.390545]  ? generic_perform_write+0x6a0/0x6a0
[  357.395303]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.400848]  ? check_preemption_disabled+0x48/0x280
[  357.405909]  filemap_fault+0x1595/0x25f0
[  357.410000]  ? __lock_page_or_retry+0xa00/0xa00
[  357.414677]  ? mark_held_locks+0x130/0x130
[  357.418928]  ? filemap_map_pages+0xd6b/0x1a20
[  357.423429]  ? lock_downgrade+0x900/0x900
[  357.427581]  ? check_preemption_disabled+0x48/0x280
[  357.432605]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  357.437543]  ? kasan_check_read+0x11/0x20
[  357.441696]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  357.446979]  ? rcu_softirq_qs+0x20/0x20
[  357.450977]  ? filemap_map_pages+0xd92/0x1a20
[  357.455487]  ? find_get_entries_tag+0x1400/0x1400
[  357.460340]  ? debug_object_destroy+0x2b0/0x2b0
[  357.465014]  ? lock_pi_update_atomic+0x150/0x150
[  357.469776]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.475330]  ? lock_acquire+0x1ed/0x520
[  357.479307]  ? ext4_filemap_fault+0x7a/0xad
[  357.483636]  ? lock_release+0xa00/0xa00
[  357.487610]  ? perf_trace_sched_process_exec+0x860/0x860
[  357.493062]  ? print_usage_bug+0xc0/0xc0
[  357.497134]  ? print_usage_bug+0xc0/0xc0
[  357.501216]  ? down_read+0x8d/0x120
[  357.504863]  ? ext4_filemap_fault+0x7a/0xad
[  357.509227]  ? __down_interruptible+0x700/0x700
[  357.513910]  ext4_filemap_fault+0x82/0xad
[  357.518068]  __do_fault+0x100/0x6b0
[  357.521698]  ? find_held_lock+0x36/0x1c0
[  357.525763]  ? pmd_devmap_trans_unstable+0x220/0x220
[  357.530890]  ? mark_held_locks+0x130/0x130
[  357.535135]  ? mark_held_locks+0x130/0x130
[  357.539382]  ? kasan_check_read+0x11/0x20
[  357.543537]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  357.549082]  __handle_mm_fault+0x3ea0/0x5be0
[  357.553498]  ? perf_trace_lock+0x7a0/0x7a0
[  357.557746]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  357.562599]  ? __switch_to_asm+0x34/0x70
[  357.566660]  ? __switch_to_asm+0x34/0x70
[  357.570749]  ? zap_class+0x640/0x640
[  357.574476]  ? zap_class+0x640/0x640
[  357.578196]  ? __x64_sys_futex+0x53e/0x6a0
[  357.582438]  ? find_held_lock+0x36/0x1c0
[  357.586510]  ? handle_mm_fault+0x42a/0xc70
[  357.590754]  ? lock_downgrade+0x900/0x900
[  357.594911]  ? check_preemption_disabled+0x48/0x280
[  357.599932]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  357.604888]  ? kasan_check_read+0x11/0x20
[  357.609056]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  357.614337]  ? rcu_softirq_qs+0x20/0x20
[  357.618314]  ? trace_hardirqs_off_caller+0x310/0x310
[  357.623430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  357.628971]  ? sync_mm_rss+0x9a/0x1c0
[  357.632794]  handle_mm_fault+0x54f/0xc70
[  357.636864]  ? __handle_mm_fault+0x5be0/0x5be0
[  357.641461]  ? find_vma+0x34/0x190
[  357.645010]  __do_page_fault+0x5e8/0xe60
[  357.649075]  ? trace_hardirqs_off+0xb8/0x310
[  357.653510]  do_page_fault+0xf2/0x7e0
[  357.657331]  ? vmalloc_sync_all+0x30/0x30
[  357.661492]  ? error_entry+0x70/0xd0
[  357.665213]  ? trace_hardirqs_off_caller+0xbb/0x310
[  357.670234]  ? trace_hardirqs_on_caller+0xc0/0x310
[  357.675167]  ? syscall_return_slowpath+0x5e0/0x5e0
[  357.680125]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  357.684978]  ? trace_hardirqs_on_caller+0x310/0x310
[  357.689999]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  357.695460]  ? prepare_exit_to_usermode+0x291/0x3b0
[  357.700483]  ? page_fault+0x8/0x30
[  357.704046]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  357.708910]  ? page_fault+0x8/0x30
[  357.712456]  page_fault+0x1e/0x30
[  357.715925] RIP: 0033:0x45ddf3
[  357.719143] Code: Bad RIP value.
[  357.722505] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  357.727864] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  357.735139] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  357.742414] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  357.749685] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  357.756955] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  357.764251] warn_alloc_show_mem: 1 callbacks suppressed
[  357.764263] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  357.764265] Mem-Info:
[  357.764296] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  357.764296]  active_file:17 inactive_file:17 isolated_file:0
[  357.764296]  unevictable:0 dirty:4 writeback:0 unstable:0
[  357.764296]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  357.764296]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  357.764296]  free:13550 free_pcp:124 free_cma:0
[  357.769642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  357.776924] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  357.779327] Call Trace:
[  357.812391] 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
[  357.821744]  <IRQ>
[  357.849510] lowmem_reserve[]: 0 2818 6321 6321
[  357.852118]  dump_stack+0x244/0x39d
[  357.878223] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  357.880395]  ? dump_stack_print_info.cold.1+0x20/0x20
[  357.884931] lowmem_reserve[]: 0 0 3503 3503
[  357.888566]  warn_alloc.cold.116+0xb7/0x1bd
[  357.915870] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  357.921081]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  357.925369] lowmem_reserve[]: 0 0 0 0
[  357.929706]  ? lock_downgrade+0x900/0x900
[  357.958600] 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
[  357.963456]  ? trace_hardirqs_off+0xb8/0x310
[  357.967222] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  357.971370]  ? trace_hardirqs_off+0xb8/0x310
[  357.984865] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  357.989301]  __alloc_pages_slowpath+0x2651/0x2de0
[  358.004028] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  358.008451]  ? warn_alloc+0x120/0x120
[  358.023152] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  358.027999]  ? warn_alloc+0x120/0x120
[  358.036825] 1360 total pagecache pages
[  358.040625]  ? warn_alloc+0x120/0x120
[  358.049182] 0 pages in swap cache
[  358.052973]  ? print_usage_bug+0xc0/0xc0
[  358.056838] Swap cache stats: add 0, delete 0, find 0/0
[  358.060633]  ? debug_object_activate+0x402/0x600
[  358.064057] Free swap  = 0kB
[  358.068121]  ? print_usage_bug+0xc0/0xc0
[  358.073467] Total swap = 0kB
[  358.078222]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.081211] 1965979 pages RAM
[  358.085268]  ? should_fail+0x22d/0xd01
[  358.088262] 0 pages HighMem/MovableOnly
[  358.093797]  ? __lock_acquire+0x62f/0x4c20
[  358.096872] 342854 pages reserved
[  358.100757]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  358.104704] 0 pages cma reserved
[  358.108931]  ? __lock_acquire+0x62f/0x4c20
[  358.112437] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  358.117461]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  358.120887] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  358.125042]  ? __lock_acquire+0x62f/0x4c20
[  358.131508] syz-fuzzer cpuset=/ mems_allowed=0
[  358.136602]  ? should_fail+0x22d/0xd01
[  358.136627]  ? mark_held_locks+0x130/0x130
[  358.163754]  ? mark_held_locks+0x130/0x130
[  358.167998]  ? lock_downgrade+0x900/0x900
[  358.172164]  ? trace_hardirqs_off+0xb8/0x310
[  358.176599]  ? zap_class+0x640/0x640
[  358.180322]  ? print_usage_bug+0xc0/0xc0
[  358.184394]  ? trace_hardirqs_on+0x310/0x310
[  358.188801]  ? do_raw_spin_trylock+0x270/0x270
[  358.193395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.198937]  ? check_preemption_disabled+0x48/0x280
[  358.203967]  ? __lock_is_held+0xb5/0x140
[  358.208038]  __alloc_pages_nodemask+0xad8/0xea0
[  358.212710]  ? zap_class+0x640/0x640
[  358.216429]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  358.221456]  ? find_held_lock+0x36/0x1c0
[  358.225527]  ? ____cache_alloc_node+0x1c7/0x1e0
[  358.230198]  ? lock_downgrade+0x900/0x900
[  358.234361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.239912]  cache_grow_begin+0xa5/0x8c0
[  358.243978]  ? do_raw_spin_unlock+0xa7/0x330
[  358.248402]  fallback_alloc+0x204/0x2e0
[  358.252391]  ____cache_alloc_node+0x1c7/0x1e0
[  358.256898]  kmem_cache_alloc_node+0xe3/0x730
[  358.261404]  ? ipv6_get_ifaddr+0x42e/0x620
[  358.265653]  __alloc_skb+0x119/0x770
[  358.269367]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.274667]  ? netdev_alloc_frag+0x1f0/0x1f0
[  358.279093]  ? lock_downgrade+0x900/0x900
[  358.283257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.288817]  ? refcount_sub_and_test_checked+0x203/0x310
[  358.294275]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  358.299744]  ? addrconf_rs_timer+0x690/0x690
[  358.304203]  ndisc_alloc_skb+0x144/0x340
[  358.308276]  ndisc_send_rs+0x331/0x6e0
[  358.312187]  addrconf_rs_timer+0x314/0x690
[  358.316432]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  358.320679]  call_timer_fn+0x272/0x920
[  358.324582]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  358.328819]  ? process_timeout+0x40/0x40
[  358.332906]  ? __run_timers+0x7da/0xc70
[  358.336927]  ? _raw_spin_unlock_irq+0x27/0x80
[  358.341425]  ? _raw_spin_unlock_irq+0x27/0x80
[  358.345921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  358.350159]  ? lockdep_hardirqs_on+0x296/0x5b0
[  358.354747]  ? trace_hardirqs_on+0xbd/0x310
[  358.359072]  ? kasan_check_read+0x11/0x20
[  358.363241]  ? __run_timers+0x7da/0xc70
[  358.367221]  ? trace_hardirqs_off_caller+0x310/0x310
[  358.372340]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  358.376575]  __run_timers+0x7e5/0xc70
[  358.380398]  ? timer_fixup_init+0x70/0x70
[  358.384552]  ? kasan_check_read+0x11/0x20
[  358.388699]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.393996]  ? rcu_softirq_qs+0x20/0x20
[  358.397974]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.403518]  ? check_preemption_disabled+0x48/0x280
[  358.408544]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  358.413305]  ? retint_kernel+0x2d/0x2d
[  358.417200]  ? trace_hardirqs_on_caller+0xc0/0x310
[  358.422141]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  358.426913]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  358.432369]  ? zap_class+0x640/0x640
[  358.436097]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.441650]  ? check_preemption_disabled+0x48/0x280
[  358.446695]  ? __lock_is_held+0xb5/0x140
[  358.450764]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.456306]  ? check_preemption_disabled+0x48/0x280
[  358.461330]  run_timer_softirq+0x52/0xb0
[  358.465401]  ? rcu_read_lock_sched_held+0x14f/0x180
[  358.470422]  __do_softirq+0x308/0xb7e
[  358.474230]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  358.478726]  ? lock_downgrade+0x900/0x900
[  358.482878]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  358.488010]  ? pvclock_read_flags+0x160/0x160
[  358.492528]  ? lapic_next_event+0x5a/0x90
[  358.496680]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.502227]  ? kvm_clock_read+0x18/0x30
[  358.506210]  ? kvm_sched_clock_read+0x9/0x20
[  358.510626]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.516179]  ? check_preemption_disabled+0x48/0x280
[  358.521206]  irq_exit+0x17f/0x1c0
[  358.524666]  smp_apic_timer_interrupt+0x1cb/0x760
[  358.529513]  ? smp_reschedule_interrupt+0x109/0x650
[  358.534532]  ? smp_call_function_single_interrupt+0x650/0x650
[  358.540421]  ? interrupt_entry+0xb5/0xc0
[  358.544488]  ? trace_hardirqs_off_caller+0xbb/0x310
[  358.549503]  ? trace_hardirqs_off_caller+0xbb/0x310
[  358.554521]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.559369]  ? trace_hardirqs_on_caller+0x310/0x310
[  358.564400]  ? trace_hardirqs_on_caller+0x310/0x310
[  358.569456]  ? task_prio+0x50/0x50
[  358.573002]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.578542]  ? check_preemption_disabled+0x48/0x280
[  358.583578]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.588432]  apic_timer_interrupt+0xf/0x20
[  358.592661]  </IRQ>
[  358.594902] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  358.599835] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  358.618744] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  358.626458] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  358.633725] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  358.641008] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  358.648285] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  358.655568] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  358.662902]  skb_clone+0x1bb/0x500
[  358.666448]  ? skb_split+0x11e0/0x11e0
[  358.670342]  ? preempt_notifier_register+0x200/0x200
[  358.675443]  ? __switch_to_asm+0x34/0x70
[  358.679527]  ? __switch_to_asm+0x34/0x70
[  358.683583]  ? __switch_to_asm+0x40/0x70
[  358.687640]  ? __switch_to_asm+0x34/0x70
[  358.691698]  ? __switch_to_asm+0x40/0x70
[  358.695761]  ? __switch_to_asm+0x40/0x70
[  358.699821]  ? __switch_to_asm+0x34/0x70
[  358.703897]  ? __switch_to_asm+0x34/0x70
[  358.707957]  ? __switch_to_asm+0x40/0x70
[  358.712045]  ? __switch_to_asm+0x34/0x70
[  358.716136]  bpf_clone_redirect+0xb9/0x490
[  358.720406]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  358.725426]  ? __sched_text_start+0x8/0x8
[  358.729578]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  358.734353]  ? find_held_lock+0x36/0x1c0
[  358.738431]  ? lock_acquire+0x1ed/0x520
[  358.742426]  ? bpf_test_run+0x3ee/0x7a0
[  358.746403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  358.751945]  ? check_preemption_disabled+0x48/0x280
[  358.756986]  ? kasan_check_read+0x11/0x20
[  358.761148]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  358.766427]  ? rcu_softirq_qs+0x20/0x20
[  358.770407]  ? preempt_schedule+0x4d/0x60
[  358.774558]  ? ___preempt_schedule+0x16/0x18
[  358.778976]  ? bpf_test_run+0x271/0x7a0
[  358.782966]  ? netlink_diag_dump+0x2a0/0x2a0
[  358.787388]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.792944]  ? bpf_test_init.isra.10+0x70/0x100
[  358.797625]  ? bpf_prog_test_run_skb+0x762/0xd60
[  358.802423]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  358.807277]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  358.812817]  ? fput+0x130/0x1a0
[  358.816102]  ? __bpf_prog_get+0x9b/0x290
[  358.820195]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  358.825043]  ? bpf_prog_test_run+0x130/0x1a0
[  358.829459]  ? __x64_sys_bpf+0x3d8/0x520
[  358.833521]  ? bpf_prog_get+0x20/0x20
[  358.837348]  ? do_syscall_64+0x1b9/0x820
[  358.841415]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  358.846783]  ? syscall_return_slowpath+0x5e0/0x5e0
[  358.851716]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.856564]  ? trace_hardirqs_on_caller+0x310/0x310
[  358.861583]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  358.866611]  ? prepare_exit_to_usermode+0x291/0x3b0
[  358.871637]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  358.876501]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  358.881889] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  358.881994] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  358.888844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  358.888853] Call Trace:
[  358.895438] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  358.904681]  <IRQ>
[  358.907253] syz-executor4 cpuset=syz4 mems_allowed=0
[  358.917742]  dump_stack+0x244/0x39d
[  358.928603]  ? dump_stack_print_info.cold.1+0x20/0x20
[  358.933819]  warn_alloc.cold.116+0xb7/0x1bd
[  358.938162]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  358.943012]  ? lock_downgrade+0x900/0x900
[  358.947175]  ? trace_hardirqs_off+0xb8/0x310
[  358.951741]  ? trace_hardirqs_off+0xb8/0x310
[  358.956189]  __alloc_pages_slowpath+0x2651/0x2de0
[  358.961077]  ? warn_alloc+0x120/0x120
[  358.964900]  ? print_usage_bug+0xc0/0xc0
[  358.968970]  ? warn_alloc+0x120/0x120
[  358.972786]  ? warn_alloc+0x120/0x120
[  358.976588]  ? print_usage_bug+0xc0/0xc0
[  358.980684]  ? print_usage_bug+0xc0/0xc0
[  358.984747]  ? __lock_acquire+0x62f/0x4c20
[  358.989008]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  358.994549]  ? should_fail+0x22d/0xd01
[  358.998441]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  359.003547]  ? __lock_acquire+0x62f/0x4c20
[  359.007788]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  359.012896]  ? __lock_acquire+0x62f/0x4c20
[  359.017138]  ? should_fail+0x22d/0xd01
[  359.021027]  ? find_held_lock+0x36/0x1c0
[  359.025103]  ? mark_held_locks+0x130/0x130
[  359.029355]  ? mark_held_locks+0x130/0x130
[  359.033606]  ? zap_class+0x640/0x640
[  359.037323]  ? zap_class+0x640/0x640
[  359.041043]  ? print_usage_bug+0xc0/0xc0
[  359.045143]  ? do_raw_spin_unlock+0xa7/0x330
[  359.049559]  ? zap_class+0x640/0x640
[  359.053274]  ? print_usage_bug+0xc0/0xc0
[  359.057334]  ? wq_watchdog_touch+0x9c/0xfe
[  359.061573]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.067121]  ? check_preemption_disabled+0x48/0x280
[  359.072158]  ? __lock_is_held+0xb5/0x140
[  359.076232]  __alloc_pages_nodemask+0xad8/0xea0
[  359.081444]  ? zap_class+0x640/0x640
[  359.085171]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  359.090199]  ? find_held_lock+0x36/0x1c0
[  359.094277]  ? ____cache_alloc_node+0x1c7/0x1e0
[  359.098954]  ? lock_downgrade+0x900/0x900
[  359.103123]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.108669]  cache_grow_begin+0xa5/0x8c0
[  359.112735]  ? do_raw_spin_unlock+0xa7/0x330
[  359.117153]  fallback_alloc+0x204/0x2e0
[  359.121142]  ____cache_alloc_node+0x1c7/0x1e0
[  359.125645]  kmem_cache_alloc_node+0xe3/0x730
[  359.130146]  ? ipv6_get_ifaddr+0x42e/0x620
[  359.134395]  __alloc_skb+0x119/0x770
[  359.138148]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  359.143432]  ? netdev_alloc_frag+0x1f0/0x1f0
[  359.147844]  ? lock_downgrade+0x900/0x900
[  359.152023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.157566]  ? refcount_sub_and_test_checked+0x203/0x310
[  359.163058]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  359.168522]  ? addrconf_rs_timer+0x690/0x690
[  359.172946]  ndisc_alloc_skb+0x144/0x340
[  359.177013]  ndisc_send_rs+0x331/0x6e0
[  359.180918]  addrconf_rs_timer+0x314/0x690
[  359.185163]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.189412]  call_timer_fn+0x272/0x920
[  359.193302]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.197539]  ? process_timeout+0x40/0x40
[  359.201610]  ? mark_held_locks+0xc7/0x130
[  359.205772]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.210282]  ? _raw_spin_unlock_irq+0x27/0x80
[  359.214778]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.219033]  ? lockdep_hardirqs_on+0x296/0x5b0
[  359.223620]  ? trace_hardirqs_on+0xbd/0x310
[  359.227945]  ? kasan_check_read+0x11/0x20
[  359.232090]  ? __run_timers+0x7da/0xc70
[  359.236086]  ? trace_hardirqs_off_caller+0x310/0x310
[  359.241209]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.245452]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  359.249689]  __run_timers+0x7e5/0xc70
[  359.253503]  ? timer_fixup_init+0x70/0x70
[  359.257657]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  359.262677]  ? zap_class+0x640/0x640
[  359.266400]  ? print_usage_bug+0xc0/0xc0
[  359.270498]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  359.275694]  ? find_held_lock+0x36/0x1c0
[  359.279776]  ? zap_class+0x640/0x640
[  359.283497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.289054]  ? check_preemption_disabled+0x48/0x280
[  359.294084]  ? __lock_is_held+0xb5/0x140
[  359.298159]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.303698]  ? check_preemption_disabled+0x48/0x280
[  359.308724]  run_timer_softirq+0x52/0xb0
[  359.312790]  ? rcu_read_lock_sched_held+0x14f/0x180
[  359.317826]  __do_softirq+0x308/0xb7e
[  359.321646]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  359.326155]  ? lock_downgrade+0x900/0x900
[  359.330309]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  359.335439]  ? pvclock_read_flags+0x160/0x160
[  359.339958]  ? lapic_next_event+0x5a/0x90
[  359.344120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.349666]  ? kvm_clock_read+0x18/0x30
[  359.353642]  ? kvm_sched_clock_read+0x9/0x20
[  359.358062]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  359.363622]  ? check_preemption_disabled+0x48/0x280
[  359.368661]  irq_exit+0x17f/0x1c0
[  359.372130]  smp_apic_timer_interrupt+0x1cb/0x760
[  359.376975]  ? smp_reschedule_interrupt+0x109/0x650
[  359.381996]  ? smp_call_function_single_interrupt+0x650/0x650
[  359.387896]  ? interrupt_entry+0xb5/0xc0
[  359.391964]  ? trace_hardirqs_off_caller+0xbb/0x310
[  359.396984]  ? trace_hardirqs_off_caller+0xbb/0x310
[  359.402002]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  359.406850]  ? trace_hardirqs_on_caller+0x310/0x310
[  359.411870]  ? trace_hardirqs_on_caller+0x310/0x310
[  359.416900]  ? task_prio+0x50/0x50
[  359.420446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.425992]  ? check_preemption_disabled+0x48/0x280
[  359.431020]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  359.435873]  apic_timer_interrupt+0xf/0x20
[  359.440118]  </IRQ>
[  359.442381] RIP: 0010:lock_acquire+0x268/0x520
[  359.446997] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  359.465920] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  359.473631] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  359.480904] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  359.488177] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  359.495448] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  359.502716] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  359.510037]  ? lruvec_lru_size+0x450/0x450
[  359.514285]  ? kasan_check_read+0x11/0x20
[  359.518442]  ? lock_release+0xa00/0xa00
[  359.522424]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  359.527369]  down_read_trylock+0xda/0x140
[  359.531516]  ? shrink_slab+0x207/0x8c0
[  359.535416]  ? downgrade_write+0x270/0x270
[  359.539662]  shrink_slab+0x207/0x8c0
[  359.543379]  ? shrink_active_list+0x1f00/0x1f00
[  359.548061]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  359.553696]  ? __lock_acquire+0x62f/0x4c20
[  359.557936]  ? percpu_ref_get_many+0x240/0x240
[  359.562554]  ? print_usage_bug+0xc0/0xc0
[  359.566639]  shrink_node+0x431/0x16b0
[  359.570443]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  359.575766]  ? shrink_node_memcg+0x18f0/0x18f0
[  359.580358]  ? kvm_clock_read+0x18/0x30
[  359.584347]  ? ktime_get+0x2c1/0x400
[  359.588069]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  359.592569]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  359.598116]  ? __cpuset_node_allowed+0x19b/0x660
[  359.602874]  ? mark_held_locks+0x130/0x130
[  359.607130]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  359.612872]  ? zap_class+0x640/0x640
[  359.616608]  do_try_to_free_pages+0x3e7/0x1290
[  359.621204]  ? zap_class+0x640/0x640
[  359.624946]  ? shrink_node+0x16b0/0x16b0
[  359.629011]  ? __lock_is_held+0xb5/0x140
[  359.633092]  try_to_free_pages+0x4d0/0xb90
[  359.637344]  ? do_try_to_free_pages+0x1290/0x1290
[  359.642204]  ? lock_acquire+0x1ed/0x520
[  359.646180]  ? set_page_refcounted+0x280/0x280
[  359.650773]  ? lock_release+0xa00/0xa00
[  359.654753]  ? _raw_spin_unlock_irq+0x60/0x80
[  359.659253]  ? psi_memstall_enter+0x240/0x2b0
[  359.663753]  ? psi_memstall_tick+0x230/0x230
[  359.668180]  __alloc_pages_slowpath+0xa48/0x2de0
[  359.672973]  ? warn_alloc+0x120/0x120
[  359.676775]  ? mark_held_locks+0x130/0x130
[  359.681021]  ? find_get_entry+0xaae/0x1120
[  359.685268]  ? filemap_map_pages+0x1a20/0x1a20
[  359.689869]  ? zap_class+0x640/0x640
[  359.693599]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.699159]  ? check_preemption_disabled+0x48/0x280
[  359.704194]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  359.709747]  ? should_fail+0x22d/0xd01
[  359.713640]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  359.718750]  ? zap_class+0x640/0x640
[  359.722495]  ? __lock_is_held+0xb5/0x140
[  359.726567]  ? mark_held_locks+0x130/0x130
[  359.730806]  ? lock_release+0xa00/0xa00
[  359.734785]  ? perf_trace_sched_process_exec+0x860/0x860
[  359.740256]  ? xa_load+0x2ba/0x460
[  359.743811]  ? lock_downgrade+0x900/0x900
[  359.747981]  ? __might_sleep+0x95/0x190
[  359.751970]  __alloc_pages_nodemask+0xad8/0xea0
[  359.756668]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  359.761688]  ? __page_cache_alloc+0x191/0x5c0
[  359.766186]  ? xa_load+0x2e1/0x460
[  359.769735]  ? xa_clear_mark+0x40/0x40
[  359.773627]  ? zap_class+0x640/0x640
[  359.777350]  ? zap_class+0x640/0x640
[  359.781095]  ? zap_class+0x640/0x640
[  359.784823]  ? __do_page_cache_readahead+0x663/0x810
[  359.789947]  ? find_held_lock+0x36/0x1c0
[  359.794016]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  359.799567]  alloc_pages_current+0x173/0x350
[  359.804017]  __page_cache_alloc+0x38c/0x5c0
[  359.808341]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  359.813274]  ? kasan_check_read+0x11/0x20
[  359.817424]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  359.822706]  ? generic_perform_write+0x6a0/0x6a0
[  359.827465]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  359.833007]  ? check_preemption_disabled+0x48/0x280
[  359.838038]  filemap_fault+0x1595/0x25f0
[  359.842123]  ? __lock_page_or_retry+0xa00/0xa00
[  359.846801]  ? mark_held_locks+0x130/0x130
[  359.851045]  ? filemap_map_pages+0xd6b/0x1a20
[  359.855579]  ? lock_downgrade+0x900/0x900
[  359.859735]  ? check_preemption_disabled+0x48/0x280
[  359.864760]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  359.869695]  ? kasan_check_read+0x11/0x20
[  359.873841]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  359.879125]  ? rcu_softirq_qs+0x20/0x20
[  359.883125]  ? filemap_map_pages+0xd92/0x1a20
[  359.887635]  ? find_get_entries_tag+0x1400/0x1400
[  359.892485]  ? debug_object_destroy+0x2b0/0x2b0
[  359.897161]  ? lock_pi_update_atomic+0x150/0x150
[  359.901936]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  359.907491]  ? lock_acquire+0x1ed/0x520
[  359.911466]  ? ext4_filemap_fault+0x7a/0xad
[  359.915795]  ? lock_release+0xa00/0xa00
[  359.919771]  ? perf_trace_sched_process_exec+0x860/0x860
[  359.925224]  ? print_usage_bug+0xc0/0xc0
[  359.929289]  ? print_usage_bug+0xc0/0xc0
[  359.933400]  ? down_read+0x8d/0x120
[  359.937026]  ? ext4_filemap_fault+0x7a/0xad
[  359.941381]  ? __down_interruptible+0x700/0x700
[  359.946091]  ext4_filemap_fault+0x82/0xad
[  359.950268]  __do_fault+0x100/0x6b0
[  359.953939]  ? find_held_lock+0x36/0x1c0
[  359.958003]  ? pmd_devmap_trans_unstable+0x220/0x220
[  359.963125]  ? mark_held_locks+0x130/0x130
[  359.967367]  ? mark_held_locks+0x130/0x130
[  359.971629]  ? kasan_check_read+0x11/0x20
[  359.975798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  359.981342]  __handle_mm_fault+0x3ea0/0x5be0
[  359.985753]  ? perf_trace_lock+0x7a0/0x7a0
[  359.990007]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  359.994861]  ? __switch_to_asm+0x34/0x70
[  359.998932]  ? __switch_to_asm+0x34/0x70
[  360.003008]  ? zap_class+0x640/0x640
[  360.006723]  ? zap_class+0x640/0x640
[  360.010456]  ? __x64_sys_futex+0x53e/0x6a0
[  360.014697]  ? find_held_lock+0x36/0x1c0
[  360.018782]  ? handle_mm_fault+0x42a/0xc70
[  360.023021]  ? lock_downgrade+0x900/0x900
[  360.027182]  ? check_preemption_disabled+0x48/0x280
[  360.032207]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  360.037145]  ? kasan_check_read+0x11/0x20
[  360.041298]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.046579]  ? rcu_softirq_qs+0x20/0x20
[  360.050555]  ? trace_hardirqs_off_caller+0x310/0x310
[  360.055669]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.061211]  ? sync_mm_rss+0x9a/0x1c0
[  360.065016]  handle_mm_fault+0x54f/0xc70
[  360.069087]  ? __handle_mm_fault+0x5be0/0x5be0
[  360.073684]  ? find_vma+0x34/0x190
[  360.077237]  __do_page_fault+0x5e8/0xe60
[  360.081321]  ? trace_hardirqs_off+0xb8/0x310
[  360.085748]  do_page_fault+0xf2/0x7e0
[  360.089553]  ? vmalloc_sync_all+0x30/0x30
[  360.093707]  ? error_entry+0x70/0xd0
[  360.097424]  ? trace_hardirqs_off_caller+0xbb/0x310
[  360.102443]  ? trace_hardirqs_on_caller+0xc0/0x310
[  360.107374]  ? syscall_return_slowpath+0x5e0/0x5e0
[  360.112318]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.117170]  ? trace_hardirqs_on_caller+0x310/0x310
[  360.122194]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  360.127653]  ? prepare_exit_to_usermode+0x291/0x3b0
[  360.132681]  ? page_fault+0x8/0x30
[  360.136240]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  360.141090]  ? page_fault+0x8/0x30
[  360.144636]  page_fault+0x1e/0x30
[  360.148087] RIP: 0033:0x45ddf3
[  360.151304] Code: Bad RIP value.
[  360.154665] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  360.160028] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  360.167297] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  360.174566] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  360.181835] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  360.189104] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  360.196431] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  360.196437] warn_alloc_show_mem: 1 callbacks suppressed
[  360.196444] Mem-Info:
[  360.203730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  360.209098] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  360.209098]  active_file:17 inactive_file:17 isolated_file:0
[  360.209098]  unevictable:0 dirty:4 writeback:0 unstable:0
[  360.209098]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  360.209098]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  360.209098]  free:13550 free_pcp:124 free_cma:0
[  360.211471] Call Trace:
[  360.220862] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  360.253906]  <IRQ>
[  360.256495] 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
[  360.284269]  dump_stack+0x244/0x39d
[  360.286393] lowmem_reserve[]: 0 2818 6321 6321
[  360.312525]  ? dump_stack_print_info.cold.1+0x20/0x20
[  360.316128] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  360.320712]  warn_alloc.cold.116+0xb7/0x1bd
[  360.325864] lowmem_reserve[]: 0 0 3503 3503
[  360.353197]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  360.357493] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  360.361811]  ? lock_downgrade+0x900/0x900
[  360.366622] lowmem_reserve[]: 0 0 0 0
[  360.395528]  ? trace_hardirqs_off+0xb8/0x310
[  360.399652] 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
[  360.403467]  ? trace_hardirqs_off+0xb8/0x310
[  360.407846] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  360.421376]  __alloc_pages_slowpath+0x2651/0x2de0
[  360.425756] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  360.440523]  ? warn_alloc+0x120/0x120
[  360.445329] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  360.460072]  ? print_usage_bug+0xc0/0xc0
[  360.463851] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  360.472678]  ? warn_alloc+0x120/0x120
[  360.476709] 1360 total pagecache pages
[  360.485283]  ? warn_alloc+0x120/0x120
[  360.489067] 0 pages in swap cache
[  360.492943]  ? print_usage_bug+0xc0/0xc0
[  360.496727] Swap cache stats: add 0, delete 0, find 0/0
[  360.500177]  ? kvm_clock_read+0x18/0x30
[  360.504217] Free swap  = 0kB
[  360.509595]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  360.513543] Total swap = 0kB
[  360.516556]  ? print_usage_bug+0xc0/0xc0
[  360.521544] 1965979 pages RAM
[  360.524561]  ? __lock_acquire+0x62f/0x4c20
[  360.528594] 0 pages HighMem/MovableOnly
[  360.531699]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  360.535910] 342854 pages reserved
[  360.539882]  ? should_fail+0x22d/0xd01
[  360.545396] 0 pages cma reserved
[  360.548842]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.552784] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  360.556069]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  360.561612] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  360.567847]  ? __lock_acquire+0x62f/0x4c20
[  360.572923] syz-fuzzer cpuset=/ mems_allowed=0
[  360.583157]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  360.597044]  ? __lock_acquire+0x62f/0x4c20
[  360.601283]  ? should_fail+0x22d/0xd01
[  360.605170]  ? rcu_irq_exit+0x1a2/0x390
[  360.609158]  ? mark_held_locks+0x130/0x130
[  360.613406]  ? mark_held_locks+0x130/0x130
[  360.617650]  ? mark_held_locks+0xc7/0x130
[  360.621799]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  360.626822]  ? zap_class+0x640/0x640
[  360.630539]  ? print_usage_bug+0xc0/0xc0
[  360.634608]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.640176]  ? check_preemption_disabled+0x48/0x280
[  360.645206]  ? __lock_is_held+0xb5/0x140
[  360.649306]  __alloc_pages_nodemask+0xad8/0xea0
[  360.653980]  ? zap_class+0x640/0x640
[  360.657699]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  360.662742]  ? find_held_lock+0x36/0x1c0
[  360.666827]  ? ____cache_alloc_node+0x1c7/0x1e0
[  360.671527]  ? lock_downgrade+0x900/0x900
[  360.675705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.681260]  cache_grow_begin+0xa5/0x8c0
[  360.685324]  ? do_raw_spin_unlock+0xa7/0x330
[  360.689743]  fallback_alloc+0x204/0x2e0
[  360.693730]  ____cache_alloc_node+0x1c7/0x1e0
[  360.698234]  kmem_cache_alloc_node+0xe3/0x730
[  360.702736]  ? ipv6_get_ifaddr+0x42e/0x620
[  360.707010]  __alloc_skb+0x119/0x770
[  360.710725]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.716009]  ? netdev_alloc_frag+0x1f0/0x1f0
[  360.720420]  ? lock_downgrade+0x900/0x900
[  360.724578]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.730127]  ? refcount_sub_and_test_checked+0x203/0x310
[  360.735585]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  360.741042]  ? addrconf_rs_timer+0x690/0x690
[  360.745464]  ndisc_alloc_skb+0x144/0x340
[  360.749532]  ndisc_send_rs+0x331/0x6e0
[  360.753446]  addrconf_rs_timer+0x314/0x690
[  360.757703]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.761954]  call_timer_fn+0x272/0x920
[  360.765841]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.770093]  ? process_timeout+0x40/0x40
[  360.774171]  ? __run_timers+0x7da/0xc70
[  360.778150]  ? _raw_spin_unlock_irq+0x27/0x80
[  360.782646]  ? _raw_spin_unlock_irq+0x27/0x80
[  360.787144]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.791386]  ? lockdep_hardirqs_on+0x296/0x5b0
[  360.795981]  ? trace_hardirqs_on+0xbd/0x310
[  360.800310]  ? kasan_check_read+0x11/0x20
[  360.804475]  ? __run_timers+0x7da/0xc70
[  360.808457]  ? trace_hardirqs_off_caller+0x310/0x310
[  360.813571]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.817811]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  360.822046]  __run_timers+0x7e5/0xc70
[  360.825868]  ? timer_fixup_init+0x70/0x70
[  360.830039]  ? kasan_check_read+0x11/0x20
[  360.834205]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  360.839486]  ? rcu_softirq_qs+0x20/0x20
[  360.843478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.849019]  ? check_preemption_disabled+0x48/0x280
[  360.854043]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  360.858805]  ? retint_kernel+0x2d/0x2d
[  360.862701]  ? trace_hardirqs_on_caller+0xc0/0x310
[  360.867633]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  360.872401]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  360.877875]  ? zap_class+0x640/0x640
[  360.881606]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.887148]  ? check_preemption_disabled+0x48/0x280
[  360.892178]  ? __lock_is_held+0xb5/0x140
[  360.896244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.901785]  ? check_preemption_disabled+0x48/0x280
[  360.906810]  run_timer_softirq+0x52/0xb0
[  360.910873]  ? rcu_read_lock_sched_held+0x14f/0x180
[  360.915892]  __do_softirq+0x308/0xb7e
[  360.919701]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  360.924199]  ? lock_downgrade+0x900/0x900
[  360.928361]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  360.933486]  ? pvclock_read_flags+0x160/0x160
[  360.938003]  ? lapic_next_event+0x5a/0x90
[  360.942172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.947720]  ? kvm_clock_read+0x18/0x30
[  360.951913]  ? kvm_sched_clock_read+0x9/0x20
[  360.956324]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  360.961867]  ? check_preemption_disabled+0x48/0x280
[  360.966894]  irq_exit+0x17f/0x1c0
[  360.970355]  smp_apic_timer_interrupt+0x1cb/0x760
[  360.975220]  ? smp_reschedule_interrupt+0x109/0x650
[  360.980245]  ? smp_call_function_single_interrupt+0x650/0x650
[  360.986161]  ? interrupt_entry+0xb5/0xc0
[  360.990232]  ? trace_hardirqs_off_caller+0xbb/0x310
[  360.995253]  ? trace_hardirqs_off_caller+0xbb/0x310
[  361.000272]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.005128]  ? trace_hardirqs_on_caller+0x310/0x310
[  361.010156]  ? trace_hardirqs_on_caller+0x310/0x310
[  361.015189]  ? task_prio+0x50/0x50
[  361.018733]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.024308]  ? check_preemption_disabled+0x48/0x280
[  361.029335]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.034193]  apic_timer_interrupt+0xf/0x20
[  361.038428]  </IRQ>
[  361.040673] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  361.045609] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  361.064529] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  361.072241] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  361.079722] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  361.086997] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  361.094266] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  361.101535] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  361.108861]  skb_clone+0x1bb/0x500
[  361.112421]  ? skb_split+0x11e0/0x11e0
[  361.116320]  ? preempt_notifier_register+0x200/0x200
[  361.121428]  ? __switch_to_asm+0x34/0x70
[  361.125488]  ? __switch_to_asm+0x34/0x70
[  361.129567]  ? __switch_to_asm+0x40/0x70
[  361.133643]  ? __switch_to_asm+0x34/0x70
[  361.137700]  ? __switch_to_asm+0x40/0x70
[  361.141764]  ? __switch_to_asm+0x40/0x70
[  361.145826]  ? __switch_to_asm+0x34/0x70
[  361.149886]  ? __switch_to_asm+0x34/0x70
[  361.153949]  ? __switch_to_asm+0x40/0x70
[  361.158007]  ? __switch_to_asm+0x34/0x70
[  361.162078]  bpf_clone_redirect+0xb9/0x490
[  361.166334]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  361.171355]  ? __sched_text_start+0x8/0x8
[  361.175513]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  361.180289]  ? find_held_lock+0x36/0x1c0
[  361.184359]  ? lock_acquire+0x1ed/0x520
[  361.188342]  ? bpf_test_run+0x3ee/0x7a0
[  361.192342]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.197881]  ? check_preemption_disabled+0x48/0x280
[  361.202906]  ? kasan_check_read+0x11/0x20
[  361.207058]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  361.212335]  ? rcu_softirq_qs+0x20/0x20
[  361.216340]  ? preempt_schedule+0x4d/0x60
[  361.220511]  ? ___preempt_schedule+0x16/0x18
[  361.224933]  ? bpf_test_run+0x271/0x7a0
[  361.228925]  ? netlink_diag_dump+0x2a0/0x2a0
[  361.233340]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.238877]  ? bpf_test_init.isra.10+0x70/0x100
[  361.243560]  ? bpf_prog_test_run_skb+0x762/0xd60
[  361.248324]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  361.253173]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  361.258726]  ? fput+0x130/0x1a0
[  361.262027]  ? __bpf_prog_get+0x9b/0x290
[  361.266092]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  361.270978]  ? bpf_prog_test_run+0x130/0x1a0
[  361.275409]  ? __x64_sys_bpf+0x3d8/0x520
[  361.279499]  ? bpf_prog_get+0x20/0x20
[  361.283339]  ? do_syscall_64+0x1b9/0x820
[  361.287447]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  361.292809]  ? syscall_return_slowpath+0x5e0/0x5e0
[  361.297739]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.302589]  ? trace_hardirqs_on_caller+0x310/0x310
[  361.307608]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  361.312629]  ? prepare_exit_to_usermode+0x291/0x3b0
[  361.317651]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.322506]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  361.327894] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  361.327973] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  361.334842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  361.334848] Call Trace:
[  361.334857]  <IRQ>
[  361.334874]  dump_stack+0x244/0x39d
[  361.334911]  ? dump_stack_print_info.cold.1+0x20/0x20
[  361.341474] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  361.350747]  warn_alloc.cold.116+0xb7/0x1bd
[  361.353297] syz-executor4 cpuset=syz4 mems_allowed=0
[  361.355455]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  361.388979]  ? lock_downgrade+0x900/0x900
[  361.393146]  ? trace_hardirqs_off+0xb8/0x310
[  361.397570]  ? trace_hardirqs_off+0xb8/0x310
[  361.401990]  __alloc_pages_slowpath+0x2651/0x2de0
[  361.406866]  ? warn_alloc+0x120/0x120
[  361.410691]  ? print_usage_bug+0xc0/0xc0
[  361.414754]  ? warn_alloc+0x120/0x120
[  361.418562]  ? warn_alloc+0x120/0x120
[  361.422366]  ? print_usage_bug+0xc0/0xc0
[  361.426447]  ? kvm_clock_read+0x18/0x30
[  361.430434]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  361.435471]  ? print_usage_bug+0xc0/0xc0
[  361.439560]  ? __lock_acquire+0x62f/0x4c20
[  361.443811]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.449355]  ? should_fail+0x22d/0xd01
[  361.453243]  ? __lock_acquire+0x62f/0x4c20
[  361.457483]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.462587]  ? __lock_acquire+0x62f/0x4c20
[  361.466828]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  361.471930]  ? __lock_acquire+0x62f/0x4c20
[  361.476164]  ? should_fail+0x22d/0xd01
[  361.480062]  ? mark_held_locks+0x130/0x130
[  361.484301]  ? mark_held_locks+0x130/0x130
[  361.488550]  ? zap_class+0x640/0x640
[  361.492277]  ? print_usage_bug+0xc0/0xc0
[  361.496346]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.501896]  ? check_preemption_disabled+0x48/0x280
[  361.506929]  ? __lock_is_held+0xb5/0x140
[  361.511001]  __alloc_pages_nodemask+0xad8/0xea0
[  361.515676]  ? zap_class+0x640/0x640
[  361.519400]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  361.524430]  ? find_held_lock+0x36/0x1c0
[  361.528502]  ? ____cache_alloc_node+0x1c7/0x1e0
[  361.533174]  ? lock_downgrade+0x900/0x900
[  361.537336]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.542887]  cache_grow_begin+0xa5/0x8c0
[  361.546951]  ? do_raw_spin_unlock+0xa7/0x330
[  361.551368]  fallback_alloc+0x204/0x2e0
[  361.555354]  ____cache_alloc_node+0x1c7/0x1e0
[  361.559863]  kmem_cache_alloc_node+0xe3/0x730
[  361.564369]  ? ipv6_get_ifaddr+0x42e/0x620
[  361.568617]  __alloc_skb+0x119/0x770
[  361.572347]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  361.577632]  ? netdev_alloc_frag+0x1f0/0x1f0
[  361.582047]  ? lock_downgrade+0x900/0x900
[  361.586207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.591751]  ? refcount_sub_and_test_checked+0x203/0x310
[  361.597206]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  361.602660]  ? addrconf_rs_timer+0x690/0x690
[  361.607082]  ndisc_alloc_skb+0x144/0x340
[  361.611165]  ndisc_send_rs+0x331/0x6e0
[  361.615064]  addrconf_rs_timer+0x314/0x690
[  361.619310]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.623558]  call_timer_fn+0x272/0x920
[  361.627447]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.631682]  ? process_timeout+0x40/0x40
[  361.635757]  ? mark_held_locks+0xc7/0x130
[  361.639917]  ? _raw_spin_unlock_irq+0x27/0x80
[  361.644413]  ? _raw_spin_unlock_irq+0x27/0x80
[  361.648913]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.653156]  ? lockdep_hardirqs_on+0x296/0x5b0
[  361.657744]  ? trace_hardirqs_on+0xbd/0x310
[  361.662070]  ? kasan_check_read+0x11/0x20
[  361.666219]  ? __run_timers+0x7da/0xc70
[  361.670197]  ? trace_hardirqs_off_caller+0x310/0x310
[  361.675314]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  361.679549]  __run_timers+0x7e5/0xc70
[  361.683369]  ? timer_fixup_init+0x70/0x70
[  361.687537]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  361.692560]  ? zap_class+0x640/0x640
[  361.696283]  ? print_usage_bug+0xc0/0xc0
[  361.700348]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  361.705547]  ? find_held_lock+0x36/0x1c0
[  361.709613]  ? zap_class+0x640/0x640
[  361.713336]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.718878]  ? check_preemption_disabled+0x48/0x280
[  361.723915]  ? __lock_is_held+0xb5/0x140
[  361.727983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.733526]  ? check_preemption_disabled+0x48/0x280
[  361.738551]  run_timer_softirq+0x52/0xb0
[  361.742621]  ? rcu_read_lock_sched_held+0x14f/0x180
[  361.747641]  __do_softirq+0x308/0xb7e
[  361.751451]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  361.755948]  ? lock_downgrade+0x900/0x900
[  361.760119]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  361.765238]  ? pvclock_read_flags+0x160/0x160
[  361.769739]  ? lapic_next_event+0x5a/0x90
[  361.773898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.779441]  ? kvm_clock_read+0x18/0x30
[  361.783416]  ? kvm_sched_clock_read+0x9/0x20
[  361.787829]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  361.793372]  ? check_preemption_disabled+0x48/0x280
[  361.798401]  irq_exit+0x17f/0x1c0
[  361.801863]  smp_apic_timer_interrupt+0x1cb/0x760
[  361.806710]  ? smp_reschedule_interrupt+0x109/0x650
[  361.811734]  ? smp_call_function_single_interrupt+0x650/0x650
[  361.817622]  ? interrupt_entry+0xb5/0xc0
[  361.821689]  ? trace_hardirqs_off_caller+0xbb/0x310
[  361.826713]  ? trace_hardirqs_off_caller+0xbb/0x310
[  361.831734]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.836581]  ? trace_hardirqs_on_caller+0x310/0x310
[  361.841598]  ? trace_hardirqs_on_caller+0x310/0x310
[  361.846621]  ? task_prio+0x50/0x50
[  361.850196]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  361.855742]  ? check_preemption_disabled+0x48/0x280
[  361.860771]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  361.865623]  apic_timer_interrupt+0xf/0x20
[  361.869854]  </IRQ>
[  361.872104] RIP: 0010:lock_acquire+0x268/0x520
[  361.876699] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  361.895638] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  361.903351] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  361.910621] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  361.917904] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  361.925178] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  361.932453] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  361.939784]  ? lruvec_lru_size+0x450/0x450
[  361.944023]  ? kasan_check_read+0x11/0x20
[  361.948180]  ? lock_release+0xa00/0xa00
[  361.952182]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  361.957135]  down_read_trylock+0xda/0x140
[  361.961287]  ? shrink_slab+0x207/0x8c0
[  361.965179]  ? downgrade_write+0x270/0x270
[  361.969428]  shrink_slab+0x207/0x8c0
[  361.973149]  ? shrink_active_list+0x1f00/0x1f00
[  361.977826]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  361.983457]  ? __lock_acquire+0x62f/0x4c20
[  361.987701]  ? percpu_ref_get_many+0x240/0x240
[  361.992303]  ? print_usage_bug+0xc0/0xc0
[  361.996391]  shrink_node+0x431/0x16b0
[  362.000194]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  362.005497]  ? shrink_node_memcg+0x18f0/0x18f0
[  362.010086]  ? kvm_clock_read+0x18/0x30
[  362.014092]  ? ktime_get+0x2c1/0x400
[  362.017820]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  362.022323]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  362.027863]  ? __cpuset_node_allowed+0x19b/0x660
[  362.032628]  ? mark_held_locks+0x130/0x130
[  362.036900]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  362.042617]  ? zap_class+0x640/0x640
[  362.046344]  do_try_to_free_pages+0x3e7/0x1290
[  362.050929]  ? zap_class+0x640/0x640
[  362.054662]  ? shrink_node+0x16b0/0x16b0
[  362.058726]  ? __lock_is_held+0xb5/0x140
[  362.062803]  try_to_free_pages+0x4d0/0xb90
[  362.067043]  ? do_try_to_free_pages+0x1290/0x1290
[  362.071913]  ? lock_acquire+0x1ed/0x520
[  362.075916]  ? set_page_refcounted+0x280/0x280
[  362.080511]  ? lock_release+0xa00/0xa00
[  362.084501]  ? _raw_spin_unlock_irq+0x60/0x80
[  362.089002]  ? psi_memstall_enter+0x240/0x2b0
[  362.093500]  ? psi_memstall_tick+0x230/0x230
[  362.097943]  __alloc_pages_slowpath+0xa48/0x2de0
[  362.102727]  ? warn_alloc+0x120/0x120
[  362.106529]  ? mark_held_locks+0x130/0x130
[  362.110773]  ? find_get_entry+0xaae/0x1120
[  362.115017]  ? filemap_map_pages+0x1a20/0x1a20
[  362.119610]  ? zap_class+0x640/0x640
[  362.123335]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.128894]  ? check_preemption_disabled+0x48/0x280
[  362.133917]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.139457]  ? should_fail+0x22d/0xd01
[  362.143549]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  362.148658]  ? zap_class+0x640/0x640
[  362.152419]  ? __lock_is_held+0xb5/0x140
[  362.156494]  ? mark_held_locks+0x130/0x130
[  362.160743]  ? lock_release+0xa00/0xa00
[  362.164718]  ? perf_trace_sched_process_exec+0x860/0x860
[  362.170172]  ? xa_load+0x2ba/0x460
[  362.173717]  ? lock_downgrade+0x900/0x900
[  362.177871]  ? __might_sleep+0x95/0x190
[  362.181858]  __alloc_pages_nodemask+0xad8/0xea0
[  362.186542]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  362.191565]  ? __page_cache_alloc+0x191/0x5c0
[  362.196062]  ? xa_load+0x2e1/0x460
[  362.199610]  ? xa_clear_mark+0x40/0x40
[  362.203501]  ? zap_class+0x640/0x640
[  362.207223]  ? zap_class+0x640/0x640
[  362.210937]  ? zap_class+0x640/0x640
[  362.214656]  ? __do_page_cache_readahead+0x663/0x810
[  362.219767]  ? find_held_lock+0x36/0x1c0
[  362.223841]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  362.229386]  alloc_pages_current+0x173/0x350
[  362.233809]  __page_cache_alloc+0x38c/0x5c0
[  362.238140]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.243076]  ? kasan_check_read+0x11/0x20
[  362.247246]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.252530]  ? generic_perform_write+0x6a0/0x6a0
[  362.257293]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.262847]  ? check_preemption_disabled+0x48/0x280
[  362.267872]  filemap_fault+0x1595/0x25f0
[  362.271954]  ? __lock_page_or_retry+0xa00/0xa00
[  362.276628]  ? mark_held_locks+0x130/0x130
[  362.280878]  ? filemap_map_pages+0xd6b/0x1a20
[  362.285381]  ? lock_downgrade+0x900/0x900
[  362.289534]  ? check_preemption_disabled+0x48/0x280
[  362.294551]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.299483]  ? kasan_check_read+0x11/0x20
[  362.303628]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.308910]  ? rcu_softirq_qs+0x20/0x20
[  362.312908]  ? filemap_map_pages+0xd92/0x1a20
[  362.317425]  ? find_get_entries_tag+0x1400/0x1400
[  362.322275]  ? debug_object_destroy+0x2b0/0x2b0
[  362.326963]  ? lock_pi_update_atomic+0x150/0x150
[  362.331721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.337278]  ? lock_acquire+0x1ed/0x520
[  362.341252]  ? ext4_filemap_fault+0x7a/0xad
[  362.345585]  ? lock_release+0xa00/0xa00
[  362.349559]  ? perf_trace_sched_process_exec+0x860/0x860
[  362.355013]  ? print_usage_bug+0xc0/0xc0
[  362.359077]  ? print_usage_bug+0xc0/0xc0
[  362.363161]  ? down_read+0x8d/0x120
[  362.366790]  ? ext4_filemap_fault+0x7a/0xad
[  362.371119]  ? __down_interruptible+0x700/0x700
[  362.375802]  ext4_filemap_fault+0x82/0xad
[  362.379960]  __do_fault+0x100/0x6b0
[  362.383588]  ? find_held_lock+0x36/0x1c0
[  362.387651]  ? pmd_devmap_trans_unstable+0x220/0x220
[  362.392774]  ? mark_held_locks+0x130/0x130
[  362.397012]  ? mark_held_locks+0x130/0x130
[  362.401303]  ? kasan_check_read+0x11/0x20
[  362.405458]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.411004]  __handle_mm_fault+0x3ea0/0x5be0
[  362.415416]  ? perf_trace_lock+0x7a0/0x7a0
[  362.419660]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  362.424517]  ? __switch_to_asm+0x34/0x70
[  362.428581]  ? __switch_to_asm+0x34/0x70
[  362.432659]  ? zap_class+0x640/0x640
[  362.436375]  ? zap_class+0x640/0x640
[  362.440088]  ? __x64_sys_futex+0x53e/0x6a0
[  362.444345]  ? find_held_lock+0x36/0x1c0
[  362.448419]  ? handle_mm_fault+0x42a/0xc70
[  362.452658]  ? lock_downgrade+0x900/0x900
[  362.456817]  ? check_preemption_disabled+0x48/0x280
[  362.461841]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  362.466771]  ? kasan_check_read+0x11/0x20
[  362.470929]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.476206]  ? rcu_softirq_qs+0x20/0x20
[  362.480183]  ? trace_hardirqs_off_caller+0x310/0x310
[  362.485293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  362.490831]  ? sync_mm_rss+0x9a/0x1c0
[  362.494639]  handle_mm_fault+0x54f/0xc70
[  362.498711]  ? __handle_mm_fault+0x5be0/0x5be0
[  362.503303]  ? find_vma+0x34/0x190
[  362.506862]  __do_page_fault+0x5e8/0xe60
[  362.510948]  ? trace_hardirqs_off+0xb8/0x310
[  362.515370]  do_page_fault+0xf2/0x7e0
[  362.519179]  ? vmalloc_sync_all+0x30/0x30
[  362.523329]  ? error_entry+0x70/0xd0
[  362.527050]  ? trace_hardirqs_off_caller+0xbb/0x310
[  362.532065]  ? trace_hardirqs_on_caller+0xc0/0x310
[  362.536998]  ? syscall_return_slowpath+0x5e0/0x5e0
[  362.541928]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.546777]  ? trace_hardirqs_on_caller+0x310/0x310
[  362.551805]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  362.557264]  ? prepare_exit_to_usermode+0x291/0x3b0
[  362.562289]  ? page_fault+0x8/0x30
[  362.565835]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  362.570681]  ? page_fault+0x8/0x30
[  362.574226]  page_fault+0x1e/0x30
[  362.577679] RIP: 0033:0x45ddf3
[  362.580890] Code: Bad RIP value.
[  362.584253] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  362.589617] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  362.596898] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  362.604181] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  362.611450] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  362.618724] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  362.626025] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  362.626030] warn_alloc_show_mem: 1 callbacks suppressed
[  362.626037] Mem-Info:
[  362.633340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  362.638711] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  362.638711]  active_file:17 inactive_file:17 isolated_file:0
[  362.638711]  unevictable:0 dirty:4 writeback:0 unstable:0
[  362.638711]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  362.638711]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  362.638711]  free:13550 free_pcp:124 free_cma:0
[  362.641081] Call Trace:
[  362.650470] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  362.683507]  <IRQ>
[  362.686087] 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
[  362.713872]  dump_stack+0x244/0x39d
[  362.715997] lowmem_reserve[]: 0 2818 6321 6321
[  362.742134]  ? dump_stack_print_info.cold.1+0x20/0x20
[  362.745738] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  362.750321]  warn_alloc.cold.116+0xb7/0x1bd
[  362.755480] lowmem_reserve[]: 0 0 3503 3503
[  362.782835]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  362.787139] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  362.791491]  ? lock_downgrade+0x900/0x900
[  362.796304] lowmem_reserve[]: 0 0 0 0
[  362.825218]  ? trace_hardirqs_off+0xb8/0x310
[  362.829343] 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
[  362.833145]  ? trace_hardirqs_off+0xb8/0x310
[  362.837528] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  362.851074]  __alloc_pages_slowpath+0x2651/0x2de0
[  362.855453] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  362.870220]  ? warn_alloc+0x120/0x120
[  362.875022] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  362.889756]  ? print_usage_bug+0xc0/0xc0
[  362.893533] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  362.902376]  ? warn_alloc+0x120/0x120
[  362.906410] 1360 total pagecache pages
[  362.914979]  ? warn_alloc+0x120/0x120
[  362.918766] 0 pages in swap cache
[  362.922643]  ? print_usage_bug+0xc0/0xc0
[  362.926418] Swap cache stats: add 0, delete 0, find 0/0
[  362.929864]  ? kvm_clock_read+0x18/0x30
[  362.933910] Free swap  = 0kB
[  362.933918] Total swap = 0kB
[  362.939278]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  362.943222] 1965979 pages RAM
[  362.946247]  ? print_usage_bug+0xc0/0xc0
[  362.949398] 0 pages HighMem/MovableOnly
[  362.949407] 342854 pages reserved
[  362.954427]  ? __lock_acquire+0x62f/0x4c20
[  362.957529] 0 pages cma reserved
[  362.961584]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  362.965621] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  362.969003]  ? should_fail+0x22d/0xd01
[  362.973348] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  362.976575]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  362.982085] syz-fuzzer cpuset=/ mems_allowed=0
[  362.988594]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  363.017625]  ? __lock_acquire+0x62f/0x4c20
[  363.021869]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  363.026973]  ? __lock_acquire+0x62f/0x4c20
[  363.031208]  ? should_fail+0x22d/0xd01
[  363.035094]  ? rcu_irq_exit+0x1a2/0x390
[  363.039095]  ? mark_held_locks+0x130/0x130
[  363.043350]  ? mark_held_locks+0x130/0x130
[  363.047599]  ? mark_held_locks+0xc7/0x130
[  363.051750]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  363.056770]  ? zap_class+0x640/0x640
[  363.060499]  ? print_usage_bug+0xc0/0xc0
[  363.064571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.070123]  ? check_preemption_disabled+0x48/0x280
[  363.075157]  ? __lock_is_held+0xb5/0x140
[  363.079234]  __alloc_pages_nodemask+0xad8/0xea0
[  363.084022]  ? zap_class+0x640/0x640
[  363.087742]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  363.092769]  ? find_held_lock+0x36/0x1c0
[  363.096841]  ? ____cache_alloc_node+0x1c7/0x1e0
[  363.101510]  ? lock_downgrade+0x900/0x900
[  363.105672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.111214]  cache_grow_begin+0xa5/0x8c0
[  363.115282]  ? do_raw_spin_unlock+0xa7/0x330
[  363.119700]  fallback_alloc+0x204/0x2e0
[  363.123687]  ____cache_alloc_node+0x1c7/0x1e0
[  363.128189]  kmem_cache_alloc_node+0xe3/0x730
[  363.132691]  ? ipv6_get_ifaddr+0x42e/0x620
[  363.136968]  __alloc_skb+0x119/0x770
[  363.140689]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.145974]  ? netdev_alloc_frag+0x1f0/0x1f0
[  363.150396]  ? lock_downgrade+0x900/0x900
[  363.154553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.160093]  ? refcount_sub_and_test_checked+0x203/0x310
[  363.165568]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  363.171022]  ? addrconf_rs_timer+0x690/0x690
[  363.175450]  ndisc_alloc_skb+0x144/0x340
[  363.179517]  ndisc_send_rs+0x331/0x6e0
[  363.183415]  addrconf_rs_timer+0x314/0x690
[  363.187674]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.191917]  call_timer_fn+0x272/0x920
[  363.195817]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.200095]  ? process_timeout+0x40/0x40
[  363.204173]  ? __run_timers+0x7da/0xc70
[  363.208152]  ? _raw_spin_unlock_irq+0x27/0x80
[  363.212649]  ? _raw_spin_unlock_irq+0x27/0x80
[  363.217148]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.221391]  ? lockdep_hardirqs_on+0x296/0x5b0
[  363.225977]  ? trace_hardirqs_on+0xbd/0x310
[  363.230304]  ? kasan_check_read+0x11/0x20
[  363.234473]  ? __run_timers+0x7da/0xc70
[  363.238451]  ? trace_hardirqs_off_caller+0x310/0x310
[  363.243566]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.247817]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  363.252057]  __run_timers+0x7e5/0xc70
[  363.255872]  ? timer_fixup_init+0x70/0x70
[  363.260027]  ? kasan_check_read+0x11/0x20
[  363.264180]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.269458]  ? rcu_softirq_qs+0x20/0x20
[  363.273437]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.278994]  ? check_preemption_disabled+0x48/0x280
[  363.284021]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  363.288801]  ? retint_kernel+0x2d/0x2d
[  363.292691]  ? trace_hardirqs_on_caller+0xc0/0x310
[  363.297625]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  363.302416]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  363.307873]  ? zap_class+0x640/0x640
[  363.311606]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.317155]  ? check_preemption_disabled+0x48/0x280
[  363.322191]  ? __lock_is_held+0xb5/0x140
[  363.326255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.331798]  ? check_preemption_disabled+0x48/0x280
[  363.336819]  run_timer_softirq+0x52/0xb0
[  363.340901]  ? rcu_read_lock_sched_held+0x14f/0x180
[  363.345931]  __do_softirq+0x308/0xb7e
[  363.349741]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  363.354237]  ? lock_downgrade+0x900/0x900
[  363.358406]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  363.363531]  ? pvclock_read_flags+0x160/0x160
[  363.368033]  ? lapic_next_event+0x5a/0x90
[  363.372201]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.377744]  ? kvm_clock_read+0x18/0x30
[  363.381728]  ? kvm_sched_clock_read+0x9/0x20
[  363.386160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.391702]  ? check_preemption_disabled+0x48/0x280
[  363.396751]  irq_exit+0x17f/0x1c0
[  363.400215]  smp_apic_timer_interrupt+0x1cb/0x760
[  363.405059]  ? smp_reschedule_interrupt+0x109/0x650
[  363.410085]  ? smp_call_function_single_interrupt+0x650/0x650
[  363.415982]  ? interrupt_entry+0xb5/0xc0
[  363.420048]  ? trace_hardirqs_off_caller+0xbb/0x310
[  363.425080]  ? trace_hardirqs_off_caller+0xbb/0x310
[  363.430107]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.434964]  ? trace_hardirqs_on_caller+0x310/0x310
[  363.439981]  ? trace_hardirqs_on_caller+0x310/0x310
[  363.445003]  ? task_prio+0x50/0x50
[  363.448548]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.454089]  ? check_preemption_disabled+0x48/0x280
[  363.459134]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.463993]  apic_timer_interrupt+0xf/0x20
[  363.468222]  </IRQ>
[  363.470465] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  363.475401] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  363.494309] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  363.502021] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  363.509293] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  363.516586] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  363.523852] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  363.531129] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  363.538453]  skb_clone+0x1bb/0x500
[  363.542000]  ? skb_split+0x11e0/0x11e0
[  363.545894]  ? preempt_notifier_register+0x200/0x200
[  363.551005]  ? __switch_to_asm+0x34/0x70
[  363.555069]  ? __switch_to_asm+0x34/0x70
[  363.559136]  ? __switch_to_asm+0x40/0x70
[  363.563195]  ? __switch_to_asm+0x34/0x70
[  363.567258]  ? __switch_to_asm+0x40/0x70
[  363.571337]  ? __switch_to_asm+0x40/0x70
[  363.575404]  ? __switch_to_asm+0x34/0x70
[  363.579480]  ? __switch_to_asm+0x34/0x70
[  363.583537]  ? __switch_to_asm+0x40/0x70
[  363.587611]  ? __switch_to_asm+0x34/0x70
[  363.591682]  bpf_clone_redirect+0xb9/0x490
[  363.595929]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  363.600947]  ? __sched_text_start+0x8/0x8
[  363.605097]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  363.609872]  ? find_held_lock+0x36/0x1c0
[  363.613942]  ? lock_acquire+0x1ed/0x520
[  363.617917]  ? bpf_test_run+0x3ee/0x7a0
[  363.621903]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.627452]  ? check_preemption_disabled+0x48/0x280
[  363.632480]  ? kasan_check_read+0x11/0x20
[  363.636630]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  363.641905]  ? rcu_softirq_qs+0x20/0x20
[  363.645896]  ? preempt_schedule+0x4d/0x60
[  363.650049]  ? ___preempt_schedule+0x16/0x18
[  363.654487]  ? bpf_test_run+0x271/0x7a0
[  363.658483]  ? netlink_diag_dump+0x2a0/0x2a0
[  363.662896]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.668471]  ? bpf_test_init.isra.10+0x70/0x100
[  363.673156]  ? bpf_prog_test_run_skb+0x762/0xd60
[  363.677922]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  363.682776]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  363.688325]  ? fput+0x130/0x1a0
[  363.691624]  ? __bpf_prog_get+0x9b/0x290
[  363.695700]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  363.700546]  ? bpf_prog_test_run+0x130/0x1a0
[  363.704960]  ? __x64_sys_bpf+0x3d8/0x520
[  363.709027]  ? bpf_prog_get+0x20/0x20
[  363.712849]  ? do_syscall_64+0x1b9/0x820
[  363.716926]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  363.722298]  ? syscall_return_slowpath+0x5e0/0x5e0
[  363.727228]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.732074]  ? trace_hardirqs_on_caller+0x310/0x310
[  363.737092]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  363.742126]  ? prepare_exit_to_usermode+0x291/0x3b0
[  363.747152]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  363.752006]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  363.757392] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  363.757484] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  363.764329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  363.764335] Call Trace:
[  363.764342]  <IRQ>
[  363.764359]  dump_stack+0x244/0x39d
[  363.764378]  ? dump_stack_print_info.cold.1+0x20/0x20
[  363.764405]  warn_alloc.cold.116+0xb7/0x1bd
[  363.770980] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  363.780238]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  363.782796] syz-executor4 cpuset=syz4 mems_allowed=0
[  363.784947]  ? lock_downgrade+0x900/0x900
[  363.822595]  ? trace_hardirqs_off+0xb8/0x310
[  363.827013]  ? trace_hardirqs_off+0xb8/0x310
[  363.831441]  __alloc_pages_slowpath+0x2651/0x2de0
[  363.836325]  ? warn_alloc+0x120/0x120
[  363.840151]  ? warn_alloc+0x120/0x120
[  363.843956]  ? zap_class+0x640/0x640
[  363.847670]  ? warn_alloc+0x120/0x120
[  363.851482]  ? print_usage_bug+0xc0/0xc0
[  363.855550]  ? print_usage_bug+0xc0/0xc0
[  363.859614]  ? __lock_is_held+0xb5/0x140
[  363.863698]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  363.869242]  ? should_fail+0x22d/0xd01
[  363.873140]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  363.878248]  ? __lock_acquire+0x62f/0x4c20
[  363.882488]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  363.887590]  ? __lock_acquire+0x62f/0x4c20
[  363.891825]  ? should_fail+0x22d/0xd01
[  363.895729]  ? mark_held_locks+0x130/0x130
[  363.899995]  ? mark_held_locks+0x130/0x130
[  363.904234]  ? __enqueue_entity+0x10d/0x1f0
[  363.908572]  ? zap_class+0x640/0x640
[  363.912290]  ? print_usage_bug+0xc0/0xc0
[  363.916358]  ? __lock_acquire+0x62f/0x4c20
[  363.920600]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.926146]  ? check_preemption_disabled+0x48/0x280
[  363.931179]  ? __lock_is_held+0xb5/0x140
[  363.935265]  __alloc_pages_nodemask+0xad8/0xea0
[  363.939938]  ? zap_class+0x640/0x640
[  363.943659]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  363.948690]  ? find_held_lock+0x36/0x1c0
[  363.952776]  ? ____cache_alloc_node+0x1c7/0x1e0
[  363.957450]  ? lock_downgrade+0x900/0x900
[  363.961621]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  363.967175]  cache_grow_begin+0xa5/0x8c0
[  363.971249]  ? do_raw_spin_unlock+0xa7/0x330
[  363.975696]  fallback_alloc+0x204/0x2e0
[  363.979676]  ____cache_alloc_node+0x1c7/0x1e0
[  363.984180]  kmem_cache_alloc_node+0xe3/0x730
[  363.988681]  ? ipv6_get_ifaddr+0x42e/0x620
[  363.992932]  __alloc_skb+0x119/0x770
[  363.996645]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.001933]  ? netdev_alloc_frag+0x1f0/0x1f0
[  364.006346]  ? lock_downgrade+0x900/0x900
[  364.010519]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.016063]  ? refcount_sub_and_test_checked+0x203/0x310
[  364.021529]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  364.026998]  ? addrconf_rs_timer+0x690/0x690
[  364.031439]  ndisc_alloc_skb+0x144/0x340
[  364.035513]  ndisc_send_rs+0x331/0x6e0
[  364.039405]  addrconf_rs_timer+0x314/0x690
[  364.043664]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.047916]  call_timer_fn+0x272/0x920
[  364.051806]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.056039]  ? process_timeout+0x40/0x40
[  364.060147]  ? mark_held_locks+0xc7/0x130
[  364.064302]  ? _raw_spin_unlock_irq+0x27/0x80
[  364.068826]  ? _raw_spin_unlock_irq+0x27/0x80
[  364.073326]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.077564]  ? lockdep_hardirqs_on+0x296/0x5b0
[  364.082179]  ? trace_hardirqs_on+0xbd/0x310
[  364.086503]  ? kasan_check_read+0x11/0x20
[  364.090657]  ? __run_timers+0x7da/0xc70
[  364.094670]  ? trace_hardirqs_off_caller+0x310/0x310
[  364.099793]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  364.104028]  __run_timers+0x7e5/0xc70
[  364.107839]  ? timer_fixup_init+0x70/0x70
[  364.111988]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  364.117022]  ? zap_class+0x640/0x640
[  364.120750]  ? print_usage_bug+0xc0/0xc0
[  364.124831]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  364.130028]  ? find_held_lock+0x36/0x1c0
[  364.134094]  ? zap_class+0x640/0x640
[  364.137836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.143380]  ? check_preemption_disabled+0x48/0x280
[  364.148411]  ? __lock_is_held+0xb5/0x140
[  364.152491]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.158031]  ? check_preemption_disabled+0x48/0x280
[  364.163056]  run_timer_softirq+0x52/0xb0
[  364.167130]  ? rcu_read_lock_sched_held+0x14f/0x180
[  364.172150]  __do_softirq+0x308/0xb7e
[  364.175953]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  364.180453]  ? lock_downgrade+0x900/0x900
[  364.184611]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  364.189723]  ? pvclock_read_flags+0x160/0x160
[  364.194225]  ? lapic_next_event+0x5a/0x90
[  364.198378]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.203926]  ? kvm_clock_read+0x18/0x30
[  364.207920]  ? kvm_sched_clock_read+0x9/0x20
[  364.212349]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.217909]  ? check_preemption_disabled+0x48/0x280
[  364.222938]  irq_exit+0x17f/0x1c0
[  364.226396]  smp_apic_timer_interrupt+0x1cb/0x760
[  364.231246]  ? smp_reschedule_interrupt+0x109/0x650
[  364.236268]  ? smp_call_function_single_interrupt+0x650/0x650
[  364.242152]  ? interrupt_entry+0xb5/0xc0
[  364.246219]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.251251]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.256278]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.261132]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.266151]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.271171]  ? task_prio+0x50/0x50
[  364.274716]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.280265]  ? check_preemption_disabled+0x48/0x280
[  364.285305]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.290162]  apic_timer_interrupt+0xf/0x20
[  364.294413]  </IRQ>
[  364.296655] RIP: 0010:lock_acquire+0x268/0x520
[  364.301238] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  364.320152] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  364.327867] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  364.335144] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  364.342414] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  364.349716] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  364.356992] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  364.364303]  ? lruvec_lru_size+0x450/0x450
[  364.368553]  ? kasan_check_read+0x11/0x20
[  364.372709]  ? lock_release+0xa00/0xa00
[  364.376696]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  364.381654]  down_read_trylock+0xda/0x140
[  364.385807]  ? shrink_slab+0x207/0x8c0
[  364.389694]  ? downgrade_write+0x270/0x270
[  364.393939]  shrink_slab+0x207/0x8c0
[  364.397655]  ? shrink_active_list+0x1f00/0x1f00
[  364.402346]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  364.407973]  ? __lock_acquire+0x62f/0x4c20
[  364.412215]  ? percpu_ref_get_many+0x240/0x240
[  364.416816]  ? print_usage_bug+0xc0/0xc0
[  364.420890]  shrink_node+0x431/0x16b0
[  364.424697]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  364.430012]  ? shrink_node_memcg+0x18f0/0x18f0
[  364.434604]  ? kvm_clock_read+0x18/0x30
[  364.438581]  ? ktime_get+0x2c1/0x400
[  364.442303]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  364.446815]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  364.452358]  ? __cpuset_node_allowed+0x19b/0x660
[  364.457130]  ? mark_held_locks+0x130/0x130
[  364.461369]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  364.467084]  ? zap_class+0x640/0x640
[  364.470831]  do_try_to_free_pages+0x3e7/0x1290
[  364.475415]  ? zap_class+0x640/0x640
[  364.479155]  ? shrink_node+0x16b0/0x16b0
[  364.483218]  ? __lock_is_held+0xb5/0x140
[  364.487293]  try_to_free_pages+0x4d0/0xb90
[  364.491536]  ? do_try_to_free_pages+0x1290/0x1290
[  364.496394]  ? lock_acquire+0x1ed/0x520
[  364.500370]  ? set_page_refcounted+0x280/0x280
[  364.504958]  ? lock_release+0xa00/0xa00
[  364.508937]  ? _raw_spin_unlock_irq+0x60/0x80
[  364.513433]  ? psi_memstall_enter+0x240/0x2b0
[  364.517930]  ? psi_memstall_tick+0x230/0x230
[  364.522353]  __alloc_pages_slowpath+0xa48/0x2de0
[  364.527148]  ? warn_alloc+0x120/0x120
[  364.530954]  ? mark_held_locks+0x130/0x130
[  364.535200]  ? find_get_entry+0xaae/0x1120
[  364.539443]  ? filemap_map_pages+0x1a20/0x1a20
[  364.544030]  ? zap_class+0x640/0x640
[  364.547755]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.553297]  ? check_preemption_disabled+0x48/0x280
[  364.558317]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.563860]  ? should_fail+0x22d/0xd01
[  364.567760]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  364.572869]  ? zap_class+0x640/0x640
[  364.576617]  ? __lock_is_held+0xb5/0x140
[  364.580695]  ? mark_held_locks+0x130/0x130
[  364.584938]  ? lock_release+0xa00/0xa00
[  364.588924]  ? perf_trace_sched_process_exec+0x860/0x860
[  364.594394]  ? xa_load+0x2ba/0x460
[  364.597941]  ? lock_downgrade+0x900/0x900
[  364.602094]  ? __might_sleep+0x95/0x190
[  364.606089]  __alloc_pages_nodemask+0xad8/0xea0
[  364.610775]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  364.615796]  ? __page_cache_alloc+0x191/0x5c0
[  364.620293]  ? xa_load+0x2e1/0x460
[  364.623840]  ? xa_clear_mark+0x40/0x40
[  364.627735]  ? zap_class+0x640/0x640
[  364.631462]  ? zap_class+0x640/0x640
[  364.635180]  ? zap_class+0x640/0x640
[  364.638901]  ? __do_page_cache_readahead+0x663/0x810
[  364.644015]  ? find_held_lock+0x36/0x1c0
[  364.648086]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  364.653648]  alloc_pages_current+0x173/0x350
[  364.658070]  __page_cache_alloc+0x38c/0x5c0
[  364.662392]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  364.667329]  ? kasan_check_read+0x11/0x20
[  364.671480]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.676768]  ? generic_perform_write+0x6a0/0x6a0
[  364.681529]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.687072]  ? check_preemption_disabled+0x48/0x280
[  364.692098]  filemap_fault+0x1595/0x25f0
[  364.696203]  ? __lock_page_or_retry+0xa00/0xa00
[  364.700879]  ? mark_held_locks+0x130/0x130
[  364.705157]  ? filemap_map_pages+0xd6b/0x1a20
[  364.709657]  ? lock_downgrade+0x900/0x900
[  364.713824]  ? check_preemption_disabled+0x48/0x280
[  364.718843]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  364.723775]  ? kasan_check_read+0x11/0x20
[  364.727924]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.733202]  ? rcu_softirq_qs+0x20/0x20
[  364.737193]  ? filemap_map_pages+0xd92/0x1a20
[  364.741707]  ? find_get_entries_tag+0x1400/0x1400
[  364.746556]  ? debug_object_destroy+0x2b0/0x2b0
[  364.751249]  ? lock_pi_update_atomic+0x150/0x150
[  364.756009]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.761576]  ? lock_acquire+0x1ed/0x520
[  364.765553]  ? ext4_filemap_fault+0x7a/0xad
[  364.769888]  ? lock_release+0xa00/0xa00
[  364.773896]  ? perf_trace_sched_process_exec+0x860/0x860
[  364.779353]  ? print_usage_bug+0xc0/0xc0
[  364.783423]  ? print_usage_bug+0xc0/0xc0
[  364.787497]  ? down_read+0x8d/0x120
[  364.791131]  ? ext4_filemap_fault+0x7a/0xad
[  364.795461]  ? __down_interruptible+0x700/0x700
[  364.800147]  ext4_filemap_fault+0x82/0xad
[  364.804306]  __do_fault+0x100/0x6b0
[  364.807940]  ? find_held_lock+0x36/0x1c0
[  364.812010]  ? pmd_devmap_trans_unstable+0x220/0x220
[  364.817134]  ? mark_held_locks+0x130/0x130
[  364.821373]  ? mark_held_locks+0x130/0x130
[  364.825621]  ? kasan_check_read+0x11/0x20
[  364.829771]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  364.835316]  __handle_mm_fault+0x3ea0/0x5be0
[  364.839726]  ? perf_trace_lock+0x7a0/0x7a0
[  364.843975]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  364.848838]  ? __switch_to_asm+0x34/0x70
[  364.852905]  ? __switch_to_asm+0x34/0x70
[  364.856997]  ? zap_class+0x640/0x640
[  364.860711]  ? zap_class+0x640/0x640
[  364.864427]  ? __x64_sys_futex+0x53e/0x6a0
[  364.868668]  ? find_held_lock+0x36/0x1c0
[  364.872743]  ? handle_mm_fault+0x42a/0xc70
[  364.876983]  ? lock_downgrade+0x900/0x900
[  364.881143]  ? check_preemption_disabled+0x48/0x280
[  364.886167]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  364.891135]  ? kasan_check_read+0x11/0x20
[  364.895283]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  364.900563]  ? rcu_softirq_qs+0x20/0x20
[  364.904544]  ? trace_hardirqs_off_caller+0x310/0x310
[  364.909658]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  364.915251]  ? sync_mm_rss+0x9a/0x1c0
[  364.919056]  handle_mm_fault+0x54f/0xc70
[  364.923140]  ? __handle_mm_fault+0x5be0/0x5be0
[  364.927747]  ? find_vma+0x34/0x190
[  364.931308]  __do_page_fault+0x5e8/0xe60
[  364.935374]  ? trace_hardirqs_off+0xb8/0x310
[  364.939794]  do_page_fault+0xf2/0x7e0
[  364.943611]  ? vmalloc_sync_all+0x30/0x30
[  364.947762]  ? error_entry+0x70/0xd0
[  364.951646]  ? trace_hardirqs_off_caller+0xbb/0x310
[  364.956663]  ? trace_hardirqs_on_caller+0xc0/0x310
[  364.961594]  ? syscall_return_slowpath+0x5e0/0x5e0
[  364.966523]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.971380]  ? trace_hardirqs_on_caller+0x310/0x310
[  364.976419]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  364.981870]  ? prepare_exit_to_usermode+0x291/0x3b0
[  364.986904]  ? page_fault+0x8/0x30
[  364.990442]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  364.995296]  ? page_fault+0x8/0x30
[  364.998831]  page_fault+0x1e/0x30
[  365.002279] RIP: 0033:0x45ddf3
[  365.005482] Code: Bad RIP value.
[  365.008842] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  365.014202] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  365.021474] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  365.028739] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  365.036007] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  365.043278] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  365.050563] warn_alloc_show_mem: 1 callbacks suppressed
[  365.050575] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  365.050577] Mem-Info:
[  365.050606] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  365.050606]  active_file:17 inactive_file:17 isolated_file:0
[  365.050606]  unevictable:0 dirty:4 writeback:0 unstable:0
[  365.050606]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  365.050606]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  365.050606]  free:13550 free_pcp:124 free_cma:0
[  365.055949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  365.063223] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  365.065621] Call Trace:
[  365.099174] 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
[  365.108531]  <IRQ>
[  365.136272] lowmem_reserve[]: 0 2818 6321 6321
[  365.138865]  dump_stack+0x244/0x39d
[  365.164942] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  365.167101]  ? dump_stack_print_info.cold.1+0x20/0x20
[  365.171643] lowmem_reserve[]: 0 0 3503 3503
[  365.175295]  warn_alloc.cold.116+0xb7/0x1bd
[  365.202591] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  365.207793]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  365.212085] lowmem_reserve[]: 0 0 0 0
[  365.216413]  ? lock_downgrade+0x900/0x900
[  365.245275] 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
[  365.250127]  ? trace_hardirqs_off+0xb8/0x310
[  365.253897] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  365.258057]  ? trace_hardirqs_off+0xb8/0x310
[  365.271589] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  365.276010]  __alloc_pages_slowpath+0x2651/0x2de0
[  365.290723] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  365.295148]  ? warn_alloc+0x120/0x120
[  365.309843] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  365.314684]  ? print_usage_bug+0xc0/0xc0
[  365.323601] 1360 total pagecache pages
[  365.327400]  ? warn_alloc+0x120/0x120
[  365.335950] 0 pages in swap cache
[  365.340006]  ? warn_alloc+0x120/0x120
[  365.343865] Swap cache stats: add 0, delete 0, find 0/0
[  365.347659]  ? print_usage_bug+0xc0/0xc0
[  365.351083] Free swap  = 0kB
[  365.354891]  ? kvm_clock_read+0x18/0x30
[  365.360246] Total swap = 0kB
[  365.364301]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  365.367297] 1965979 pages RAM
[  365.371263]  ? print_usage_bug+0xc0/0xc0
[  365.374259] 0 pages HighMem/MovableOnly
[  365.379267]  ? __lock_acquire+0x62f/0x4c20
[  365.382352] 342854 pages reserved
[  365.386412]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.390362] 0 pages cma reserved
[  365.394707]  ? should_fail+0x22d/0xd01
[  365.398232] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  365.403675]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.403694]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  365.403712]  ? __lock_acquire+0x62f/0x4c20
[  365.407173] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  365.410947]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  365.417456] syz-fuzzer cpuset=/ mems_allowed=0
[  365.422737]  ? __lock_acquire+0x62f/0x4c20
[  365.456088]  ? should_fail+0x22d/0xd01
[  365.459974]  ? rcu_irq_exit+0x1a2/0x390
[  365.463950]  ? mark_held_locks+0x130/0x130
[  365.468186]  ? mark_held_locks+0x130/0x130
[  365.472423]  ? mark_held_locks+0xc7/0x130
[  365.476591]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  365.481618]  ? zap_class+0x640/0x640
[  365.485323]  ? print_usage_bug+0xc0/0xc0
[  365.489403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.495000]  ? check_preemption_disabled+0x48/0x280
[  365.500149]  ? __lock_is_held+0xb5/0x140
[  365.504238]  __alloc_pages_nodemask+0xad8/0xea0
[  365.508924]  ? zap_class+0x640/0x640
[  365.512655]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  365.517677]  ? find_held_lock+0x36/0x1c0
[  365.521743]  ? ____cache_alloc_node+0x1c7/0x1e0
[  365.526426]  ? lock_downgrade+0x900/0x900
[  365.530641]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.536182]  cache_grow_begin+0xa5/0x8c0
[  365.540286]  ? do_raw_spin_unlock+0xa7/0x330
[  365.544697]  fallback_alloc+0x204/0x2e0
[  365.548692]  ____cache_alloc_node+0x1c7/0x1e0
[  365.553188]  kmem_cache_alloc_node+0xe3/0x730
[  365.557696]  ? ipv6_get_ifaddr+0x42e/0x620
[  365.561938]  __alloc_skb+0x119/0x770
[  365.565650]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.570942]  ? netdev_alloc_frag+0x1f0/0x1f0
[  365.575361]  ? lock_downgrade+0x900/0x900
[  365.579523]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.585072]  ? refcount_sub_and_test_checked+0x203/0x310
[  365.590525]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  365.595973]  ? addrconf_rs_timer+0x690/0x690
[  365.600397]  ndisc_alloc_skb+0x144/0x340
[  365.604474]  ndisc_send_rs+0x331/0x6e0
[  365.608370]  addrconf_rs_timer+0x314/0x690
[  365.612615]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.616862]  call_timer_fn+0x272/0x920
[  365.620752]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.624986]  ? process_timeout+0x40/0x40
[  365.629055]  ? __run_timers+0x7da/0xc70
[  365.633035]  ? _raw_spin_unlock_irq+0x27/0x80
[  365.637534]  ? _raw_spin_unlock_irq+0x27/0x80
[  365.642022]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.646256]  ? lockdep_hardirqs_on+0x296/0x5b0
[  365.650839]  ? trace_hardirqs_on+0xbd/0x310
[  365.655158]  ? kasan_check_read+0x11/0x20
[  365.659315]  ? __run_timers+0x7da/0xc70
[  365.663287]  ? trace_hardirqs_off_caller+0x310/0x310
[  365.668394]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.672648]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  365.676882]  __run_timers+0x7e5/0xc70
[  365.680691]  ? timer_fixup_init+0x70/0x70
[  365.684857]  ? kasan_check_read+0x11/0x20
[  365.689004]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  365.694277]  ? rcu_softirq_qs+0x20/0x20
[  365.698263]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.703795]  ? check_preemption_disabled+0x48/0x280
[  365.708812]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  365.713579]  ? retint_kernel+0x2d/0x2d
[  365.717479]  ? trace_hardirqs_on_caller+0xc0/0x310
[  365.722421]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  365.727174]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  365.732661]  ? zap_class+0x640/0x640
[  365.736438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.741971]  ? check_preemption_disabled+0x48/0x280
[  365.746990]  ? __lock_is_held+0xb5/0x140
[  365.751063]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.756593]  ? check_preemption_disabled+0x48/0x280
[  365.761630]  run_timer_softirq+0x52/0xb0
[  365.765685]  ? rcu_read_lock_sched_held+0x14f/0x180
[  365.770730]  __do_softirq+0x308/0xb7e
[  365.774577]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  365.779067]  ? lock_downgrade+0x900/0x900
[  365.783224]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  365.788368]  ? pvclock_read_flags+0x160/0x160
[  365.792868]  ? lapic_next_event+0x5a/0x90
[  365.797016]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.802574]  ? kvm_clock_read+0x18/0x30
[  365.806548]  ? kvm_sched_clock_read+0x9/0x20
[  365.810955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  365.816490]  ? check_preemption_disabled+0x48/0x280
[  365.821512]  irq_exit+0x17f/0x1c0
[  365.824962]  smp_apic_timer_interrupt+0x1cb/0x760
[  365.829796]  ? smp_reschedule_interrupt+0x109/0x650
[  365.834805]  ? smp_call_function_single_interrupt+0x650/0x650
[  365.840684]  ? interrupt_entry+0xb5/0xc0
[  365.844792]  ? trace_hardirqs_off_caller+0xbb/0x310
[  365.849817]  ? trace_hardirqs_off_caller+0xbb/0x310
[  365.854832]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.859668]  ? trace_hardirqs_on_caller+0x310/0x310
[  365.864681]  ? trace_hardirqs_on_caller+0x310/0x310
[  365.869720]  ? task_prio+0x50/0x50
[  365.873266]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  365.878801]  ? check_preemption_disabled+0x48/0x280
[  365.883825]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  365.888670]  apic_timer_interrupt+0xf/0x20
[  365.892901]  </IRQ>
[  365.895145] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  365.900075] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  365.918976] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  365.926697] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  365.933967] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  365.941250] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  365.948517] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  365.955782] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  365.963093]  skb_clone+0x1bb/0x500
[  365.966675]  ? skb_split+0x11e0/0x11e0
[  365.970564]  ? preempt_notifier_register+0x200/0x200
[  365.975694]  ? __switch_to_asm+0x34/0x70
[  365.979782]  ? __switch_to_asm+0x34/0x70
[  365.983870]  ? __switch_to_asm+0x40/0x70
[  365.987928]  ? __switch_to_asm+0x34/0x70
[  365.991985]  ? __switch_to_asm+0x40/0x70
[  365.996047]  ? __switch_to_asm+0x40/0x70
[  366.000104]  ? __switch_to_asm+0x34/0x70
[  366.004177]  ? __switch_to_asm+0x34/0x70
[  366.008249]  ? __switch_to_asm+0x40/0x70
[  366.012308]  ? __switch_to_asm+0x34/0x70
[  366.016376]  bpf_clone_redirect+0xb9/0x490
[  366.020629]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  366.025680]  ? __sched_text_start+0x8/0x8
[  366.029859]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  366.034631]  ? find_held_lock+0x36/0x1c0
[  366.038703]  ? lock_acquire+0x1ed/0x520
[  366.042678]  ? bpf_test_run+0x3ee/0x7a0
[  366.046655]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.052195]  ? check_preemption_disabled+0x48/0x280
[  366.057220]  ? kasan_check_read+0x11/0x20
[  366.061367]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.066646]  ? rcu_softirq_qs+0x20/0x20
[  366.070619]  ? preempt_schedule+0x4d/0x60
[  366.074767]  ? ___preempt_schedule+0x16/0x18
[  366.079184]  ? bpf_test_run+0x271/0x7a0
[  366.083180]  ? netlink_diag_dump+0x2a0/0x2a0
[  366.087597]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.093145]  ? bpf_test_init.isra.10+0x70/0x100
[  366.097834]  ? bpf_prog_test_run_skb+0x762/0xd60
[  366.102613]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  366.107477]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  366.113011]  ? fput+0x130/0x1a0
[  366.116306]  ? __bpf_prog_get+0x9b/0x290
[  366.120387]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  366.125226]  ? bpf_prog_test_run+0x130/0x1a0
[  366.129647]  ? __x64_sys_bpf+0x3d8/0x520
[  366.133704]  ? bpf_prog_get+0x20/0x20
[  366.137534]  ? do_syscall_64+0x1b9/0x820
[  366.141589]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  366.146984]  ? syscall_return_slowpath+0x5e0/0x5e0
[  366.151929]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.156789]  ? trace_hardirqs_on_caller+0x310/0x310
[  366.161821]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  366.166857]  ? prepare_exit_to_usermode+0x291/0x3b0
[  366.171877]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.176725]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  366.182140] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  366.182245] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  366.189068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  366.189076] Call Trace:
[  366.195638] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  366.204894]  <IRQ>
[  366.207460] syz-executor4 cpuset=syz4 mems_allowed=0
[  366.217933]  dump_stack+0x244/0x39d
[  366.228818]  ? dump_stack_print_info.cold.1+0x20/0x20
[  366.234015]  warn_alloc.cold.116+0xb7/0x1bd
[  366.238355]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  366.243237]  ? lock_downgrade+0x900/0x900
[  366.247398]  ? trace_hardirqs_off+0xb8/0x310
[  366.251826]  ? trace_hardirqs_off+0xb8/0x310
[  366.256243]  __alloc_pages_slowpath+0x2651/0x2de0
[  366.261107]  ? warn_alloc+0x120/0x120
[  366.264918]  ? print_usage_bug+0xc0/0xc0
[  366.268993]  ? warn_alloc+0x120/0x120
[  366.272798]  ? warn_alloc+0x120/0x120
[  366.276600]  ? print_usage_bug+0xc0/0xc0
[  366.280669]  ? print_usage_bug+0xc0/0xc0
[  366.284729]  ? __lock_acquire+0x62f/0x4c20
[  366.288983]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.294520]  ? should_fail+0x22d/0xd01
[  366.298409]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  366.303530]  ? __lock_acquire+0x62f/0x4c20
[  366.307779]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  366.312901]  ? __lock_acquire+0x62f/0x4c20
[  366.317140]  ? should_fail+0x22d/0xd01
[  366.321027]  ? find_held_lock+0x36/0x1c0
[  366.325091]  ? mark_held_locks+0x130/0x130
[  366.329363]  ? mark_held_locks+0x130/0x130
[  366.333598]  ? zap_class+0x640/0x640
[  366.337326]  ? zap_class+0x640/0x640
[  366.341041]  ? print_usage_bug+0xc0/0xc0
[  366.345098]  ? do_raw_spin_unlock+0xa7/0x330
[  366.349511]  ? zap_class+0x640/0x640
[  366.353223]  ? print_usage_bug+0xc0/0xc0
[  366.357282]  ? wq_watchdog_touch+0x9c/0xfe
[  366.361535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.367070]  ? check_preemption_disabled+0x48/0x280
[  366.372092]  ? __lock_is_held+0xb5/0x140
[  366.376169]  __alloc_pages_nodemask+0xad8/0xea0
[  366.380836]  ? zap_class+0x640/0x640
[  366.384552]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  366.389571]  ? find_held_lock+0x36/0x1c0
[  366.393638]  ? ____cache_alloc_node+0x1c7/0x1e0
[  366.398319]  ? lock_downgrade+0x900/0x900
[  366.402469]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.408025]  cache_grow_begin+0xa5/0x8c0
[  366.412083]  ? do_raw_spin_unlock+0xa7/0x330
[  366.416506]  fallback_alloc+0x204/0x2e0
[  366.420534]  ____cache_alloc_node+0x1c7/0x1e0
[  366.425060]  kmem_cache_alloc_node+0xe3/0x730
[  366.429571]  ? ipv6_get_ifaddr+0x42e/0x620
[  366.433859]  __alloc_skb+0x119/0x770
[  366.437574]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  366.442865]  ? netdev_alloc_frag+0x1f0/0x1f0
[  366.447270]  ? lock_downgrade+0x900/0x900
[  366.451421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.456960]  ? refcount_sub_and_test_checked+0x203/0x310
[  366.462410]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  366.467872]  ? addrconf_rs_timer+0x690/0x690
[  366.472294]  ndisc_alloc_skb+0x144/0x340
[  366.476355]  ndisc_send_rs+0x331/0x6e0
[  366.480250]  addrconf_rs_timer+0x314/0x690
[  366.484502]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.488746]  call_timer_fn+0x272/0x920
[  366.492629]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.496861]  ? process_timeout+0x40/0x40
[  366.500930]  ? mark_held_locks+0xc7/0x130
[  366.505086]  ? _raw_spin_unlock_irq+0x27/0x80
[  366.509614]  ? _raw_spin_unlock_irq+0x27/0x80
[  366.514104]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.518347]  ? lockdep_hardirqs_on+0x296/0x5b0
[  366.522932]  ? trace_hardirqs_on+0xbd/0x310
[  366.527250]  ? kasan_check_read+0x11/0x20
[  366.531392]  ? __run_timers+0x7da/0xc70
[  366.535363]  ? trace_hardirqs_off_caller+0x310/0x310
[  366.540464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.544730]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  366.548959]  __run_timers+0x7e5/0xc70
[  366.552777]  ? timer_fixup_init+0x70/0x70
[  366.556942]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  366.561954]  ? zap_class+0x640/0x640
[  366.565665]  ? print_usage_bug+0xc0/0xc0
[  366.569723]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  366.574943]  ? find_held_lock+0x36/0x1c0
[  366.579002]  ? zap_class+0x640/0x640
[  366.582768]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.588330]  ? check_preemption_disabled+0x48/0x280
[  366.593369]  ? __lock_is_held+0xb5/0x140
[  366.597496]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.603028]  ? check_preemption_disabled+0x48/0x280
[  366.608067]  run_timer_softirq+0x52/0xb0
[  366.612132]  ? rcu_read_lock_sched_held+0x14f/0x180
[  366.617150]  __do_softirq+0x308/0xb7e
[  366.620950]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  366.625493]  ? lock_downgrade+0x900/0x900
[  366.629672]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  366.634784]  ? pvclock_read_flags+0x160/0x160
[  366.639277]  ? lapic_next_event+0x5a/0x90
[  366.643442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.648997]  ? kvm_clock_read+0x18/0x30
[  366.652976]  ? kvm_sched_clock_read+0x9/0x20
[  366.657388]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  366.662930]  ? check_preemption_disabled+0x48/0x280
[  366.667958]  irq_exit+0x17f/0x1c0
[  366.671421]  smp_apic_timer_interrupt+0x1cb/0x760
[  366.676265]  ? smp_reschedule_interrupt+0x109/0x650
[  366.681283]  ? smp_call_function_single_interrupt+0x650/0x650
[  366.687165]  ? interrupt_entry+0xb5/0xc0
[  366.691228]  ? trace_hardirqs_off_caller+0xbb/0x310
[  366.696242]  ? trace_hardirqs_off_caller+0xbb/0x310
[  366.701257]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.706097]  ? trace_hardirqs_on_caller+0x310/0x310
[  366.711136]  ? trace_hardirqs_on_caller+0x310/0x310
[  366.716155]  ? task_prio+0x50/0x50
[  366.719698]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.725233]  ? check_preemption_disabled+0x48/0x280
[  366.730265]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  366.735131]  apic_timer_interrupt+0xf/0x20
[  366.739369]  </IRQ>
[  366.741608] RIP: 0010:lock_acquire+0x268/0x520
[  366.746191] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  366.765084] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  366.772794] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  366.780054] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  366.787313] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  366.794571] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  366.801832] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  366.809168]  ? lruvec_lru_size+0x450/0x450
[  366.813418]  ? kasan_check_read+0x11/0x20
[  366.817582]  ? lock_release+0xa00/0xa00
[  366.821574]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  366.826520]  down_read_trylock+0xda/0x140
[  366.830679]  ? shrink_slab+0x207/0x8c0
[  366.834574]  ? downgrade_write+0x270/0x270
[  366.838838]  shrink_slab+0x207/0x8c0
[  366.842554]  ? shrink_active_list+0x1f00/0x1f00
[  366.847233]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  366.852856]  ? __lock_acquire+0x62f/0x4c20
[  366.857096]  ? percpu_ref_get_many+0x240/0x240
[  366.861725]  ? print_usage_bug+0xc0/0xc0
[  366.865790]  shrink_node+0x431/0x16b0
[  366.869596]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  366.874894]  ? shrink_node_memcg+0x18f0/0x18f0
[  366.879515]  ? kvm_clock_read+0x18/0x30
[  366.883494]  ? ktime_get+0x2c1/0x400
[  366.887216]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  366.891714]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  366.897282]  ? __cpuset_node_allowed+0x19b/0x660
[  366.902036]  ? mark_held_locks+0x130/0x130
[  366.906271]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  366.911989]  ? zap_class+0x640/0x640
[  366.915714]  do_try_to_free_pages+0x3e7/0x1290
[  366.920294]  ? zap_class+0x640/0x640
[  366.924023]  ? shrink_node+0x16b0/0x16b0
[  366.928084]  ? __lock_is_held+0xb5/0x140
[  366.932164]  try_to_free_pages+0x4d0/0xb90
[  366.936401]  ? do_try_to_free_pages+0x1290/0x1290
[  366.941259]  ? lock_acquire+0x1ed/0x520
[  366.945233]  ? set_page_refcounted+0x280/0x280
[  366.949983]  ? lock_release+0xa00/0xa00
[  366.953961]  ? _raw_spin_unlock_irq+0x60/0x80
[  366.958469]  ? psi_memstall_enter+0x240/0x2b0
[  366.962982]  ? psi_memstall_tick+0x230/0x230
[  366.967401]  __alloc_pages_slowpath+0xa48/0x2de0
[  366.972184]  ? warn_alloc+0x120/0x120
[  366.975982]  ? mark_held_locks+0x130/0x130
[  366.980222]  ? find_get_entry+0xaae/0x1120
[  366.984465]  ? filemap_map_pages+0x1a20/0x1a20
[  366.989051]  ? zap_class+0x640/0x640
[  366.992777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  366.998338]  ? check_preemption_disabled+0x48/0x280
[  367.003352]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.008894]  ? should_fail+0x22d/0xd01
[  367.012784]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.017896]  ? zap_class+0x640/0x640
[  367.021633]  ? __lock_is_held+0xb5/0x140
[  367.025729]  ? mark_held_locks+0x130/0x130
[  367.029966]  ? lock_release+0xa00/0xa00
[  367.033937]  ? perf_trace_sched_process_exec+0x860/0x860
[  367.039387]  ? xa_load+0x2ba/0x460
[  367.042927]  ? lock_downgrade+0x900/0x900
[  367.047084]  ? __might_sleep+0x95/0x190
[  367.051072]  __alloc_pages_nodemask+0xad8/0xea0
[  367.055749]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  367.060779]  ? __page_cache_alloc+0x191/0x5c0
[  367.065272]  ? xa_load+0x2e1/0x460
[  367.068811]  ? xa_clear_mark+0x40/0x40
[  367.072697]  ? zap_class+0x640/0x640
[  367.076457]  ? zap_class+0x640/0x640
[  367.080684]  ? zap_class+0x640/0x640
[  367.084413]  ? __do_page_cache_readahead+0x663/0x810
[  367.089520]  ? find_held_lock+0x36/0x1c0
[  367.093585]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  367.099142]  alloc_pages_current+0x173/0x350
[  367.103556]  __page_cache_alloc+0x38c/0x5c0
[  367.107875]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.112809]  ? kasan_check_read+0x11/0x20
[  367.116958]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.122441]  ? generic_perform_write+0x6a0/0x6a0
[  367.127199]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.132739]  ? check_preemption_disabled+0x48/0x280
[  367.137771]  filemap_fault+0x1595/0x25f0
[  367.141844]  ? __lock_page_or_retry+0xa00/0xa00
[  367.146514]  ? mark_held_locks+0x130/0x130
[  367.150755]  ? filemap_map_pages+0xd6b/0x1a20
[  367.155269]  ? lock_downgrade+0x900/0x900
[  367.159451]  ? check_preemption_disabled+0x48/0x280
[  367.164481]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.169423]  ? kasan_check_read+0x11/0x20
[  367.173567]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.178837]  ? rcu_softirq_qs+0x20/0x20
[  367.182822]  ? filemap_map_pages+0xd92/0x1a20
[  367.187354]  ? find_get_entries_tag+0x1400/0x1400
[  367.192198]  ? debug_object_destroy+0x2b0/0x2b0
[  367.196868]  ? lock_pi_update_atomic+0x150/0x150
[  367.201629]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.207175]  ? lock_acquire+0x1ed/0x520
[  367.211149]  ? ext4_filemap_fault+0x7a/0xad
[  367.215479]  ? lock_release+0xa00/0xa00
[  367.219453]  ? perf_trace_sched_process_exec+0x860/0x860
[  367.224913]  ? print_usage_bug+0xc0/0xc0
[  367.228971]  ? print_usage_bug+0xc0/0xc0
[  367.233038]  ? down_read+0x8d/0x120
[  367.236671]  ? ext4_filemap_fault+0x7a/0xad
[  367.240986]  ? __down_interruptible+0x700/0x700
[  367.245662]  ext4_filemap_fault+0x82/0xad
[  367.249811]  __do_fault+0x100/0x6b0
[  367.253432]  ? find_held_lock+0x36/0x1c0
[  367.257490]  ? pmd_devmap_trans_unstable+0x220/0x220
[  367.262589]  ? mark_held_locks+0x130/0x130
[  367.266844]  ? mark_held_locks+0x130/0x130
[  367.271082]  ? kasan_check_read+0x11/0x20
[  367.275229]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.280783]  __handle_mm_fault+0x3ea0/0x5be0
[  367.285183]  ? perf_trace_lock+0x7a0/0x7a0
[  367.289425]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  367.294267]  ? __switch_to_asm+0x34/0x70
[  367.298320]  ? __switch_to_asm+0x34/0x70
[  367.302404]  ? zap_class+0x640/0x640
[  367.306108]  ? zap_class+0x640/0x640
[  367.309837]  ? __x64_sys_futex+0x53e/0x6a0
[  367.314107]  ? find_held_lock+0x36/0x1c0
[  367.318208]  ? handle_mm_fault+0x42a/0xc70
[  367.322467]  ? lock_downgrade+0x900/0x900
[  367.326732]  ? check_preemption_disabled+0x48/0x280
[  367.331760]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  367.336701]  ? kasan_check_read+0x11/0x20
[  367.340858]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.346174]  ? rcu_softirq_qs+0x20/0x20
[  367.350169]  ? trace_hardirqs_off_caller+0x310/0x310
[  367.355269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.360797]  ? sync_mm_rss+0x9a/0x1c0
[  367.364596]  handle_mm_fault+0x54f/0xc70
[  367.368654]  ? __handle_mm_fault+0x5be0/0x5be0
[  367.373244]  ? find_vma+0x34/0x190
[  367.376783]  __do_page_fault+0x5e8/0xe60
[  367.380833]  ? trace_hardirqs_off+0xb8/0x310
[  367.385245]  do_page_fault+0xf2/0x7e0
[  367.389050]  ? vmalloc_sync_all+0x30/0x30
[  367.393191]  ? error_entry+0x70/0xd0
[  367.396925]  ? trace_hardirqs_off_caller+0xbb/0x310
[  367.401954]  ? trace_hardirqs_on_caller+0xc0/0x310
[  367.406878]  ? syscall_return_slowpath+0x5e0/0x5e0
[  367.411823]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.416660]  ? trace_hardirqs_on_caller+0x310/0x310
[  367.421673]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  367.427128]  ? prepare_exit_to_usermode+0x291/0x3b0
[  367.432144]  ? page_fault+0x8/0x30
[  367.435678]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  367.440518]  ? page_fault+0x8/0x30
[  367.444072]  page_fault+0x1e/0x30
[  367.447571] RIP: 0033:0x45ddf3
[  367.450793] Code: Bad RIP value.
[  367.454163] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  367.459515] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  367.466773] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  367.474035] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  367.481297] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  367.488557] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  367.495841] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  367.495863] warn_alloc_show_mem: 1 callbacks suppressed
[  367.495869] Mem-Info:
[  367.503157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  367.508519] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  367.508519]  active_file:17 inactive_file:17 isolated_file:0
[  367.508519]  unevictable:0 dirty:4 writeback:0 unstable:0
[  367.508519]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  367.508519]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  367.508519]  free:13550 free_pcp:124 free_cma:0
[  367.510894] Call Trace:
[  367.520269] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  367.553297]  <IRQ>
[  367.555890] 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
[  367.583649]  dump_stack+0x244/0x39d
[  367.585770] lowmem_reserve[]: 0 2818 6321 6321
[  367.611869]  ? dump_stack_print_info.cold.1+0x20/0x20
[  367.615469] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  367.620048]  warn_alloc.cold.116+0xb7/0x1bd
[  367.625201] lowmem_reserve[]: 0 0 3503 3503
[  367.652512]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  367.656822] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  367.661163]  ? lock_downgrade+0x900/0x900
[  367.665977] lowmem_reserve[]: 0 0 0 0
[  367.694857]  ? trace_hardirqs_off+0xb8/0x310
[  367.698973] 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
[  367.702759]  ? trace_hardirqs_off+0xb8/0x310
[  367.707153] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  367.720667]  __alloc_pages_slowpath+0x2651/0x2de0
[  367.725042] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  367.739832]  ? warn_alloc+0x120/0x120
[  367.744634] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  367.759351]  ? print_usage_bug+0xc0/0xc0
[  367.763146] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  367.771963]  ? warn_alloc+0x120/0x120
[  367.775997] 1360 total pagecache pages
[  367.784557]  ? warn_alloc+0x120/0x120
[  367.788349] 0 pages in swap cache
[  367.792213]  ? print_usage_bug+0xc0/0xc0
[  367.795990] Swap cache stats: add 0, delete 0, find 0/0
[  367.799445]  ? kvm_clock_read+0x18/0x30
[  367.803481] Free swap  = 0kB
[  367.808857]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  367.812805] Total swap = 0kB
[  367.815811]  ? print_usage_bug+0xc0/0xc0
[  367.820799] 1965979 pages RAM
[  367.823805]  ? __lock_acquire+0x62f/0x4c20
[  367.827838] 0 pages HighMem/MovableOnly
[  367.830935]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  367.835142] 342854 pages reserved
[  367.839105]  ? should_fail+0x22d/0xd01
[  367.844615] 0 pages cma reserved
[  367.848070]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  367.852004] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  367.855286]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.860593] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  367.867013]  ? __lock_acquire+0x62f/0x4c20
[  367.872089] syz-fuzzer cpuset=/ mems_allowed=0
[  367.882317]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  367.896170]  ? __lock_acquire+0x62f/0x4c20
[  367.900424]  ? should_fail+0x22d/0xd01
[  367.904363]  ? rcu_irq_exit+0x1a2/0x390
[  367.908382]  ? mark_held_locks+0x130/0x130
[  367.912625]  ? mark_held_locks+0x130/0x130
[  367.916876]  ? mark_held_locks+0xc7/0x130
[  367.921027]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  367.926038]  ? zap_class+0x640/0x640
[  367.929761]  ? print_usage_bug+0xc0/0xc0
[  367.933821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.939397]  ? check_preemption_disabled+0x48/0x280
[  367.944434]  ? __lock_is_held+0xb5/0x140
[  367.948509]  __alloc_pages_nodemask+0xad8/0xea0
[  367.953181]  ? zap_class+0x640/0x640
[  367.956894]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  367.961914]  ? find_held_lock+0x36/0x1c0
[  367.965978]  ? ____cache_alloc_node+0x1c7/0x1e0
[  367.970644]  ? lock_downgrade+0x900/0x900
[  367.974791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  367.980342]  cache_grow_begin+0xa5/0x8c0
[  367.984401]  ? do_raw_spin_unlock+0xa7/0x330
[  367.988809]  fallback_alloc+0x204/0x2e0
[  367.992783]  ____cache_alloc_node+0x1c7/0x1e0
[  367.997293]  kmem_cache_alloc_node+0xe3/0x730
[  368.001784]  ? ipv6_get_ifaddr+0x42e/0x620
[  368.006030]  __alloc_skb+0x119/0x770
[  368.009746]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.015051]  ? netdev_alloc_frag+0x1f0/0x1f0
[  368.019468]  ? lock_downgrade+0x900/0x900
[  368.023631]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.029169]  ? refcount_sub_and_test_checked+0x203/0x310
[  368.034619]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  368.040130]  ? addrconf_rs_timer+0x690/0x690
[  368.044591]  ndisc_alloc_skb+0x144/0x340
[  368.048718]  ndisc_send_rs+0x331/0x6e0
[  368.052608]  addrconf_rs_timer+0x314/0x690
[  368.056873]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.061110]  call_timer_fn+0x272/0x920
[  368.065015]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.069242]  ? process_timeout+0x40/0x40
[  368.073299]  ? __run_timers+0x7da/0xc70
[  368.077280]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.081796]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.086360]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.090597]  ? lockdep_hardirqs_on+0x296/0x5b0
[  368.095179]  ? trace_hardirqs_on+0xbd/0x310
[  368.099530]  ? kasan_check_read+0x11/0x20
[  368.103671]  ? __run_timers+0x7da/0xc70
[  368.107647]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.112806]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.117058]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.121282]  __run_timers+0x7e5/0xc70
[  368.125124]  ? timer_fixup_init+0x70/0x70
[  368.129274]  ? kasan_check_read+0x11/0x20
[  368.133434]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.138721]  ? rcu_softirq_qs+0x20/0x20
[  368.142813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.148349]  ? check_preemption_disabled+0x48/0x280
[  368.153369]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  368.158136]  ? retint_kernel+0x2d/0x2d
[  368.162022]  ? trace_hardirqs_on_caller+0xc0/0x310
[  368.166945]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  368.171700]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  368.177163]  ? zap_class+0x640/0x640
[  368.180891]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.186472]  ? check_preemption_disabled+0x48/0x280
[  368.191488]  ? __lock_is_held+0xb5/0x140
[  368.195558]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.201090]  ? check_preemption_disabled+0x48/0x280
[  368.206135]  run_timer_softirq+0x52/0xb0
[  368.210195]  ? rcu_read_lock_sched_held+0x14f/0x180
[  368.215206]  __do_softirq+0x308/0xb7e
[  368.219010]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  368.223507]  ? lock_downgrade+0x900/0x900
[  368.227662]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  368.232786]  ? pvclock_read_flags+0x160/0x160
[  368.237296]  ? lapic_next_event+0x5a/0x90
[  368.241477]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.247022]  ? kvm_clock_read+0x18/0x30
[  368.251010]  ? kvm_sched_clock_read+0x9/0x20
[  368.255421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.260955]  ? check_preemption_disabled+0x48/0x280
[  368.265975]  irq_exit+0x17f/0x1c0
[  368.269439]  smp_apic_timer_interrupt+0x1cb/0x760
[  368.274275]  ? smp_reschedule_interrupt+0x109/0x650
[  368.279289]  ? smp_call_function_single_interrupt+0x650/0x650
[  368.285201]  ? interrupt_entry+0xb5/0xc0
[  368.289266]  ? trace_hardirqs_off_caller+0xbb/0x310
[  368.294282]  ? trace_hardirqs_off_caller+0xbb/0x310
[  368.299300]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.304172]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.309192]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.314211]  ? task_prio+0x50/0x50
[  368.317767]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.323333]  ? check_preemption_disabled+0x48/0x280
[  368.328380]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.333271]  apic_timer_interrupt+0xf/0x20
[  368.337521]  </IRQ>
[  368.339815] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  368.344765] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  368.363689] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  368.371413] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  368.378697] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  368.385965] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  368.393231] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  368.400495] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  368.407804]  skb_clone+0x1bb/0x500
[  368.411378]  ? skb_split+0x11e0/0x11e0
[  368.415312]  ? preempt_notifier_register+0x200/0x200
[  368.420431]  ? __switch_to_asm+0x34/0x70
[  368.424488]  ? __switch_to_asm+0x34/0x70
[  368.428547]  ? __switch_to_asm+0x40/0x70
[  368.432620]  ? __switch_to_asm+0x34/0x70
[  368.436696]  ? __switch_to_asm+0x40/0x70
[  368.440756]  ? __switch_to_asm+0x40/0x70
[  368.444837]  ? __switch_to_asm+0x34/0x70
[  368.448907]  ? __switch_to_asm+0x34/0x70
[  368.452967]  ? __switch_to_asm+0x40/0x70
[  368.457029]  ? __switch_to_asm+0x34/0x70
[  368.461098]  bpf_clone_redirect+0xb9/0x490
[  368.465367]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  368.470425]  ? __sched_text_start+0x8/0x8
[  368.474589]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  368.479369]  ? find_held_lock+0x36/0x1c0
[  368.483461]  ? lock_acquire+0x1ed/0x520
[  368.487432]  ? bpf_test_run+0x3ee/0x7a0
[  368.491408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.496948]  ? check_preemption_disabled+0x48/0x280
[  368.501972]  ? kasan_check_read+0x11/0x20
[  368.506131]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.511409]  ? rcu_softirq_qs+0x20/0x20
[  368.515391]  ? preempt_schedule+0x4d/0x60
[  368.519555]  ? ___preempt_schedule+0x16/0x18
[  368.523980]  ? bpf_test_run+0x271/0x7a0
[  368.527983]  ? netlink_diag_dump+0x2a0/0x2a0
[  368.532402]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.537942]  ? bpf_test_init.isra.10+0x70/0x100
[  368.542623]  ? bpf_prog_test_run_skb+0x762/0xd60
[  368.547399]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  368.552252]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  368.557830]  ? fput+0x130/0x1a0
[  368.561148]  ? __bpf_prog_get+0x9b/0x290
[  368.565220]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  368.570065]  ? bpf_prog_test_run+0x130/0x1a0
[  368.574479]  ? __x64_sys_bpf+0x3d8/0x520
[  368.578541]  ? bpf_prog_get+0x20/0x20
[  368.582363]  ? do_syscall_64+0x1b9/0x820
[  368.586432]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  368.591798]  ? syscall_return_slowpath+0x5e0/0x5e0
[  368.596728]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.601576]  ? trace_hardirqs_on_caller+0x310/0x310
[  368.606598]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  368.611621]  ? prepare_exit_to_usermode+0x291/0x3b0
[  368.616649]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  368.621500]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  368.626901] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  368.626980] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  368.633857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  368.633862] Call Trace:
[  368.633869]  <IRQ>
[  368.633893]  dump_stack+0x244/0x39d
[  368.633911]  ? dump_stack_print_info.cold.1+0x20/0x20
[  368.640554] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  368.649756]  warn_alloc.cold.116+0xb7/0x1bd
[  368.652313] syz-executor4 cpuset=syz4 mems_allowed=0
[  368.654456]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  368.687941]  ? lock_downgrade+0x900/0x900
[  368.692095]  ? trace_hardirqs_off+0xb8/0x310
[  368.696514]  ? trace_hardirqs_off+0xb8/0x310
[  368.700937]  __alloc_pages_slowpath+0x2651/0x2de0
[  368.705809]  ? warn_alloc+0x120/0x120
[  368.709616]  ? print_usage_bug+0xc0/0xc0
[  368.713694]  ? warn_alloc+0x120/0x120
[  368.717508]  ? warn_alloc+0x120/0x120
[  368.721329]  ? print_usage_bug+0xc0/0xc0
[  368.725408]  ? print_usage_bug+0xc0/0xc0
[  368.729485]  ? __lock_acquire+0x62f/0x4c20
[  368.733747]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  368.739286]  ? should_fail+0x22d/0xd01
[  368.743213]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.748326]  ? __lock_acquire+0x62f/0x4c20
[  368.752559]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  368.757656]  ? __lock_acquire+0x62f/0x4c20
[  368.761883]  ? should_fail+0x22d/0xd01
[  368.765786]  ? find_held_lock+0x36/0x1c0
[  368.769849]  ? mark_held_locks+0x130/0x130
[  368.774097]  ? mark_held_locks+0x130/0x130
[  368.778348]  ? zap_class+0x640/0x640
[  368.782085]  ? zap_class+0x640/0x640
[  368.785816]  ? print_usage_bug+0xc0/0xc0
[  368.789888]  ? do_raw_spin_unlock+0xa7/0x330
[  368.794292]  ? zap_class+0x640/0x640
[  368.798000]  ? print_usage_bug+0xc0/0xc0
[  368.802052]  ? wq_watchdog_touch+0x9c/0xfe
[  368.806307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.811847]  ? check_preemption_disabled+0x48/0x280
[  368.816891]  ? __lock_is_held+0xb5/0x140
[  368.820965]  __alloc_pages_nodemask+0xad8/0xea0
[  368.825637]  ? zap_class+0x640/0x640
[  368.829368]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  368.834428]  ? find_held_lock+0x36/0x1c0
[  368.838511]  ? ____cache_alloc_node+0x1c7/0x1e0
[  368.843191]  ? lock_downgrade+0x900/0x900
[  368.847360]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.852923]  cache_grow_begin+0xa5/0x8c0
[  368.857007]  ? do_raw_spin_unlock+0xa7/0x330
[  368.861455]  fallback_alloc+0x204/0x2e0
[  368.865471]  ____cache_alloc_node+0x1c7/0x1e0
[  368.869981]  kmem_cache_alloc_node+0xe3/0x730
[  368.874475]  ? ipv6_get_ifaddr+0x42e/0x620
[  368.878736]  __alloc_skb+0x119/0x770
[  368.882458]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  368.887748]  ? netdev_alloc_frag+0x1f0/0x1f0
[  368.892183]  ? lock_downgrade+0x900/0x900
[  368.896371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  368.901970]  ? refcount_sub_and_test_checked+0x203/0x310
[  368.907457]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  368.912937]  ? addrconf_rs_timer+0x690/0x690
[  368.917378]  ndisc_alloc_skb+0x144/0x340
[  368.921464]  ndisc_send_rs+0x331/0x6e0
[  368.925368]  addrconf_rs_timer+0x314/0x690
[  368.929638]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.933894]  call_timer_fn+0x272/0x920
[  368.937807]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.942059]  ? process_timeout+0x40/0x40
[  368.946144]  ? mark_held_locks+0xc7/0x130
[  368.950492]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.954990]  ? _raw_spin_unlock_irq+0x27/0x80
[  368.959478]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.963706]  ? lockdep_hardirqs_on+0x296/0x5b0
[  368.968321]  ? trace_hardirqs_on+0xbd/0x310
[  368.972656]  ? kasan_check_read+0x11/0x20
[  368.976801]  ? __run_timers+0x7da/0xc70
[  368.980773]  ? trace_hardirqs_off_caller+0x310/0x310
[  368.985878]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.990126]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  368.994378]  __run_timers+0x7e5/0xc70
[  368.998231]  ? timer_fixup_init+0x70/0x70
[  369.002380]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  369.007432]  ? zap_class+0x640/0x640
[  369.011170]  ? print_usage_bug+0xc0/0xc0
[  369.015267]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  369.020504]  ? find_held_lock+0x36/0x1c0
[  369.024605]  ? zap_class+0x640/0x640
[  369.028345]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.033921]  ? check_preemption_disabled+0x48/0x280
[  369.038999]  ? __lock_is_held+0xb5/0x140
[  369.043089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.048661]  ? check_preemption_disabled+0x48/0x280
[  369.053693]  run_timer_softirq+0x52/0xb0
[  369.057756]  ? rcu_read_lock_sched_held+0x14f/0x180
[  369.062792]  __do_softirq+0x308/0xb7e
[  369.066598]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  369.071130]  ? lock_downgrade+0x900/0x900
[  369.075284]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  369.080948]  ? pvclock_read_flags+0x160/0x160
[  369.085465]  ? lapic_next_event+0x5a/0x90
[  369.089613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.095157]  ? kvm_clock_read+0x18/0x30
[  369.099136]  ? kvm_sched_clock_read+0x9/0x20
[  369.103545]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.109098]  ? check_preemption_disabled+0x48/0x280
[  369.114151]  irq_exit+0x17f/0x1c0
[  369.117607]  smp_apic_timer_interrupt+0x1cb/0x760
[  369.122451]  ? smp_reschedule_interrupt+0x109/0x650
[  369.127512]  ? smp_call_function_single_interrupt+0x650/0x650
[  369.133434]  ? interrupt_entry+0xb5/0xc0
[  369.137525]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.142556]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.147589]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.152457]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.157505]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.162558]  ? task_prio+0x50/0x50
[  369.166142]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.171684]  ? check_preemption_disabled+0x48/0x280
[  369.176714]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.181592]  apic_timer_interrupt+0xf/0x20
[  369.185838]  </IRQ>
[  369.188129] RIP: 0010:lock_acquire+0x268/0x520
[  369.192717] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  369.211640] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  369.219387] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  369.226696] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  369.233976] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  369.241252] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  369.248539] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  369.255847]  ? lruvec_lru_size+0x450/0x450
[  369.260088]  ? kasan_check_read+0x11/0x20
[  369.264253]  ? lock_release+0xa00/0xa00
[  369.268241]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  369.273192]  down_read_trylock+0xda/0x140
[  369.277361]  ? shrink_slab+0x207/0x8c0
[  369.281256]  ? downgrade_write+0x270/0x270
[  369.285496]  shrink_slab+0x207/0x8c0
[  369.289208]  ? shrink_active_list+0x1f00/0x1f00
[  369.293896]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  369.299544]  ? __lock_acquire+0x62f/0x4c20
[  369.303804]  ? percpu_ref_get_many+0x240/0x240
[  369.308426]  ? print_usage_bug+0xc0/0xc0
[  369.312506]  shrink_node+0x431/0x16b0
[  369.316345]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  369.321656]  ? shrink_node_memcg+0x18f0/0x18f0
[  369.326260]  ? kvm_clock_read+0x18/0x30
[  369.330240]  ? ktime_get+0x2c1/0x400
[  369.333963]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  369.338461]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  369.344000]  ? __cpuset_node_allowed+0x19b/0x660
[  369.348755]  ? mark_held_locks+0x130/0x130
[  369.352992]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  369.358702]  ? zap_class+0x640/0x640
[  369.362443]  do_try_to_free_pages+0x3e7/0x1290
[  369.367022]  ? zap_class+0x640/0x640
[  369.370751]  ? shrink_node+0x16b0/0x16b0
[  369.374809]  ? __lock_is_held+0xb5/0x140
[  369.378878]  try_to_free_pages+0x4d0/0xb90
[  369.383128]  ? do_try_to_free_pages+0x1290/0x1290
[  369.388025]  ? lock_acquire+0x1ed/0x520
[  369.392030]  ? set_page_refcounted+0x280/0x280
[  369.396624]  ? lock_release+0xa00/0xa00
[  369.400596]  ? _raw_spin_unlock_irq+0x60/0x80
[  369.405104]  ? psi_memstall_enter+0x240/0x2b0
[  369.409618]  ? psi_memstall_tick+0x230/0x230
[  369.414031]  __alloc_pages_slowpath+0xa48/0x2de0
[  369.418807]  ? warn_alloc+0x120/0x120
[  369.422615]  ? mark_held_locks+0x130/0x130
[  369.426849]  ? find_get_entry+0xaae/0x1120
[  369.431095]  ? filemap_map_pages+0x1a20/0x1a20
[  369.435710]  ? zap_class+0x640/0x640
[  369.439423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.444957]  ? check_preemption_disabled+0x48/0x280
[  369.449999]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.455552]  ? should_fail+0x22d/0xd01
[  369.459440]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  369.464539]  ? zap_class+0x640/0x640
[  369.468340]  ? __lock_is_held+0xb5/0x140
[  369.472418]  ? mark_held_locks+0x130/0x130
[  369.476653]  ? lock_release+0xa00/0xa00
[  369.480624]  ? perf_trace_sched_process_exec+0x860/0x860
[  369.486069]  ? xa_load+0x2ba/0x460
[  369.489636]  ? lock_downgrade+0x900/0x900
[  369.493796]  ? __might_sleep+0x95/0x190
[  369.497766]  __alloc_pages_nodemask+0xad8/0xea0
[  369.502490]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  369.507508]  ? __page_cache_alloc+0x191/0x5c0
[  369.512010]  ? xa_load+0x2e1/0x460
[  369.515546]  ? xa_clear_mark+0x40/0x40
[  369.519448]  ? zap_class+0x640/0x640
[  369.523175]  ? zap_class+0x640/0x640
[  369.526899]  ? zap_class+0x640/0x640
[  369.530614]  ? __do_page_cache_readahead+0x663/0x810
[  369.535717]  ? find_held_lock+0x36/0x1c0
[  369.539775]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  369.545313]  alloc_pages_current+0x173/0x350
[  369.549723]  __page_cache_alloc+0x38c/0x5c0
[  369.554035]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  369.558961]  ? kasan_check_read+0x11/0x20
[  369.563122]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.568450]  ? generic_perform_write+0x6a0/0x6a0
[  369.573232]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.578816]  ? check_preemption_disabled+0x48/0x280
[  369.583849]  filemap_fault+0x1595/0x25f0
[  369.587929]  ? __lock_page_or_retry+0xa00/0xa00
[  369.592604]  ? mark_held_locks+0x130/0x130
[  369.596867]  ? filemap_map_pages+0xd6b/0x1a20
[  369.601417]  ? lock_downgrade+0x900/0x900
[  369.605563]  ? check_preemption_disabled+0x48/0x280
[  369.610594]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  369.615548]  ? kasan_check_read+0x11/0x20
[  369.619728]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.625044]  ? rcu_softirq_qs+0x20/0x20
[  369.629081]  ? filemap_map_pages+0xd92/0x1a20
[  369.633650]  ? find_get_entries_tag+0x1400/0x1400
[  369.638530]  ? debug_object_destroy+0x2b0/0x2b0
[  369.643229]  ? lock_pi_update_atomic+0x150/0x150
[  369.647984]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.653529]  ? lock_acquire+0x1ed/0x520
[  369.657526]  ? ext4_filemap_fault+0x7a/0xad
[  369.661855]  ? lock_release+0xa00/0xa00
[  369.665837]  ? perf_trace_sched_process_exec+0x860/0x860
[  369.671287]  ? print_usage_bug+0xc0/0xc0
[  369.675351]  ? print_usage_bug+0xc0/0xc0
[  369.679418]  ? down_read+0x8d/0x120
[  369.683037]  ? ext4_filemap_fault+0x7a/0xad
[  369.687356]  ? __down_interruptible+0x700/0x700
[  369.692029]  ext4_filemap_fault+0x82/0xad
[  369.696176]  __do_fault+0x100/0x6b0
[  369.699826]  ? find_held_lock+0x36/0x1c0
[  369.703905]  ? pmd_devmap_trans_unstable+0x220/0x220
[  369.709008]  ? mark_held_locks+0x130/0x130
[  369.713254]  ? mark_held_locks+0x130/0x130
[  369.717496]  ? kasan_check_read+0x11/0x20
[  369.721641]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  369.727175]  __handle_mm_fault+0x3ea0/0x5be0
[  369.731575]  ? perf_trace_lock+0x7a0/0x7a0
[  369.735821]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  369.740670]  ? __switch_to_asm+0x34/0x70
[  369.744721]  ? __switch_to_asm+0x34/0x70
[  369.748786]  ? zap_class+0x640/0x640
[  369.752494]  ? zap_class+0x640/0x640
[  369.756202]  ? __x64_sys_futex+0x53e/0x6a0
[  369.760431]  ? find_held_lock+0x36/0x1c0
[  369.764494]  ? handle_mm_fault+0x42a/0xc70
[  369.768722]  ? lock_downgrade+0x900/0x900
[  369.772867]  ? check_preemption_disabled+0x48/0x280
[  369.777909]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  369.782833]  ? kasan_check_read+0x11/0x20
[  369.786974]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  369.792246]  ? rcu_softirq_qs+0x20/0x20
[  369.796229]  ? trace_hardirqs_off_caller+0x310/0x310
[  369.801328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  369.806859]  ? sync_mm_rss+0x9a/0x1c0
[  369.810687]  handle_mm_fault+0x54f/0xc70
[  369.814764]  ? __handle_mm_fault+0x5be0/0x5be0
[  369.819435]  ? find_vma+0x34/0x190
[  369.822978]  __do_page_fault+0x5e8/0xe60
[  369.827037]  ? trace_hardirqs_off+0xb8/0x310
[  369.831455]  do_page_fault+0xf2/0x7e0
[  369.835258]  ? vmalloc_sync_all+0x30/0x30
[  369.839409]  ? error_entry+0x70/0xd0
[  369.843132]  ? trace_hardirqs_off_caller+0xbb/0x310
[  369.848151]  ? trace_hardirqs_on_caller+0xc0/0x310
[  369.853086]  ? syscall_return_slowpath+0x5e0/0x5e0
[  369.858021]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.862869]  ? trace_hardirqs_on_caller+0x310/0x310
[  369.867893]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  369.873351]  ? prepare_exit_to_usermode+0x291/0x3b0
[  369.878396]  ? page_fault+0x8/0x30
[  369.881938]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  369.886820]  ? page_fault+0x8/0x30
[  369.890364]  page_fault+0x1e/0x30
[  369.893838] RIP: 0033:0x45ddf3
[  369.897042] Code: Bad RIP value.
[  369.900401] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  369.905760] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  369.913025] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  369.920287] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  369.927590] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  369.934865] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  369.942187] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  369.942192] warn_alloc_show_mem: 1 callbacks suppressed
[  369.942198] Mem-Info:
[  369.949473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  369.954866] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  369.954866]  active_file:17 inactive_file:17 isolated_file:0
[  369.954866]  unevictable:0 dirty:4 writeback:0 unstable:0
[  369.954866]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  369.954866]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  369.954866]  free:13550 free_pcp:124 free_cma:0
[  369.957237] Call Trace:
[  369.966637] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  369.999688]  <IRQ>
[  370.002261] 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
[  370.030030]  dump_stack+0x244/0x39d
[  370.032149] lowmem_reserve[]: 0 2818 6321 6321
[  370.058285]  ? dump_stack_print_info.cold.1+0x20/0x20
[  370.061901] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  370.066520]  warn_alloc.cold.116+0xb7/0x1bd
[  370.071685] lowmem_reserve[]: 0 0 3503 3503
[  370.099038]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  370.103335] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  370.107649]  ? lock_downgrade+0x900/0x900
[  370.112464] lowmem_reserve[]: 0 0 0 0
[  370.141345]  ? trace_hardirqs_off+0xb8/0x310
[  370.145457] 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
[  370.149280]  ? trace_hardirqs_off+0xb8/0x310
[  370.153658] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  370.167172]  __alloc_pages_slowpath+0x2651/0x2de0
[  370.171547] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  370.186328]  ? warn_alloc+0x120/0x120
[  370.191135] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  370.205856]  ? warn_alloc+0x120/0x120
[  370.209634] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  370.218450]  ? warn_alloc+0x120/0x120
[  370.222228] 1360 total pagecache pages
[  370.230792]  ? print_usage_bug+0xc0/0xc0
[  370.234570] 0 pages in swap cache
[  370.238441]  ? debug_object_activate+0x402/0x600
[  370.242476] Swap cache stats: add 0, delete 0, find 0/0
[  370.245921]  ? print_usage_bug+0xc0/0xc0
[  370.250652] Free swap  = 0kB
[  370.256007]  ? find_held_lock+0x36/0x1c0
[  370.260041] Total swap = 0kB
[  370.263054]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.267089] 1965979 pages RAM
[  370.270101]  ? should_fail+0x22d/0xd01
[  370.275611] 0 pages HighMem/MovableOnly
[  370.278705]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.282565] 342854 pages reserved
[  370.286527]  ? __lock_acquire+0x62f/0x4c20
[  370.291617] 0 pages cma reserved
[  370.295093]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  370.299391] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  370.302648]  ? __lock_acquire+0x62f/0x4c20
[  370.302660]  ? should_fail+0x22d/0xd01
[  370.302682]  ? mark_held_locks+0x130/0x130
[  370.307821] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  370.314236]  ? mark_held_locks+0x130/0x130
[  370.318444] syz-fuzzer cpuset=/ mems_allowed=0
[  370.322354]  ? mod_timer+0x631/0x1560
[  370.349329]  ? zap_class+0x640/0x640
[  370.353053]  ? print_usage_bug+0xc0/0xc0
[  370.357140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.362709]  ? check_preemption_disabled+0x48/0x280
[  370.367734]  ? __lock_is_held+0xb5/0x140
[  370.371802]  __alloc_pages_nodemask+0xad8/0xea0
[  370.376482]  ? zap_class+0x640/0x640
[  370.380197]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  370.385217]  ? find_held_lock+0x36/0x1c0
[  370.389283]  ? ____cache_alloc_node+0x1c7/0x1e0
[  370.393963]  ? lock_downgrade+0x900/0x900
[  370.398109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.403653]  cache_grow_begin+0xa5/0x8c0
[  370.407717]  ? do_raw_spin_unlock+0xa7/0x330
[  370.412154]  fallback_alloc+0x204/0x2e0
[  370.416166]  ____cache_alloc_node+0x1c7/0x1e0
[  370.420697]  kmem_cache_alloc_node+0xe3/0x730
[  370.425198]  ? ipv6_get_ifaddr+0x42e/0x620
[  370.429447]  __alloc_skb+0x119/0x770
[  370.433181]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.438463]  ? netdev_alloc_frag+0x1f0/0x1f0
[  370.442890]  ? lock_downgrade+0x900/0x900
[  370.447046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.452583]  ? refcount_sub_and_test_checked+0x203/0x310
[  370.458050]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  370.463501]  ? addrconf_rs_timer+0x690/0x690
[  370.467938]  ndisc_alloc_skb+0x144/0x340
[  370.472006]  ndisc_send_rs+0x331/0x6e0
[  370.475917]  addrconf_rs_timer+0x314/0x690
[  370.480177]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.484429]  call_timer_fn+0x272/0x920
[  370.488326]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.492566]  ? process_timeout+0x40/0x40
[  370.496660]  ? __run_timers+0x7da/0xc70
[  370.500646]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.505157]  ? _raw_spin_unlock_irq+0x27/0x80
[  370.509673]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.513921]  ? lockdep_hardirqs_on+0x296/0x5b0
[  370.518511]  ? trace_hardirqs_on+0xbd/0x310
[  370.522837]  ? kasan_check_read+0x11/0x20
[  370.526999]  ? __run_timers+0x7da/0xc70
[  370.530988]  ? trace_hardirqs_off_caller+0x310/0x310
[  370.536154]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  370.540383]  __run_timers+0x7e5/0xc70
[  370.544199]  ? timer_fixup_init+0x70/0x70
[  370.548354]  ? kasan_check_read+0x11/0x20
[  370.552519]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.557812]  ? rcu_softirq_qs+0x20/0x20
[  370.561807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.567360]  ? check_preemption_disabled+0x48/0x280
[  370.572406]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  370.577180]  ? retint_kernel+0x2d/0x2d
[  370.581070]  ? trace_hardirqs_on_caller+0xc0/0x310
[  370.586004]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  370.590762]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  370.596217]  ? zap_class+0x640/0x640
[  370.599935]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.605467]  ? check_preemption_disabled+0x48/0x280
[  370.610487]  ? __lock_is_held+0xb5/0x140
[  370.614543]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.620075]  ? check_preemption_disabled+0x48/0x280
[  370.625093]  run_timer_softirq+0x52/0xb0
[  370.629160]  ? rcu_read_lock_sched_held+0x14f/0x180
[  370.634171]  __do_softirq+0x308/0xb7e
[  370.637969]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  370.642462]  ? lock_downgrade+0x900/0x900
[  370.646611]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  370.651733]  ? pvclock_read_flags+0x160/0x160
[  370.656249]  ? lapic_next_event+0x5a/0x90
[  370.660403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.665961]  ? kvm_clock_read+0x18/0x30
[  370.669936]  ? kvm_sched_clock_read+0x9/0x20
[  370.674355]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.679926]  ? check_preemption_disabled+0x48/0x280
[  370.684956]  irq_exit+0x17f/0x1c0
[  370.688412]  smp_apic_timer_interrupt+0x1cb/0x760
[  370.693251]  ? smp_reschedule_interrupt+0x109/0x650
[  370.698266]  ? smp_call_function_single_interrupt+0x650/0x650
[  370.704150]  ? interrupt_entry+0xb5/0xc0
[  370.708212]  ? trace_hardirqs_off_caller+0xbb/0x310
[  370.713229]  ? trace_hardirqs_off_caller+0xbb/0x310
[  370.718264]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.723108]  ? trace_hardirqs_on_caller+0x310/0x310
[  370.728136]  ? trace_hardirqs_on_caller+0x310/0x310
[  370.733181]  ? task_prio+0x50/0x50
[  370.736721]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.742259]  ? check_preemption_disabled+0x48/0x280
[  370.747282]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  370.752140]  apic_timer_interrupt+0xf/0x20
[  370.756368]  </IRQ>
[  370.758611] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  370.763590] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  370.782504] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  370.790206] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  370.797468] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  370.804747] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  370.812025] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  370.819295] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  370.826592]  skb_clone+0x1bb/0x500
[  370.830151]  ? skb_split+0x11e0/0x11e0
[  370.834050]  ? preempt_notifier_register+0x200/0x200
[  370.839149]  ? __switch_to_asm+0x34/0x70
[  370.843221]  ? __switch_to_asm+0x34/0x70
[  370.847309]  ? __switch_to_asm+0x40/0x70
[  370.851362]  ? __switch_to_asm+0x34/0x70
[  370.855417]  ? __switch_to_asm+0x40/0x70
[  370.859468]  ? __switch_to_asm+0x40/0x70
[  370.863552]  ? __switch_to_asm+0x34/0x70
[  370.867613]  ? __switch_to_asm+0x34/0x70
[  370.871667]  ? __switch_to_asm+0x40/0x70
[  370.875718]  ? __switch_to_asm+0x34/0x70
[  370.879779]  bpf_clone_redirect+0xb9/0x490
[  370.884016]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  370.889036]  ? __sched_text_start+0x8/0x8
[  370.893181]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  370.897948]  ? find_held_lock+0x36/0x1c0
[  370.902017]  ? lock_acquire+0x1ed/0x520
[  370.905992]  ? bpf_test_run+0x3ee/0x7a0
[  370.909982]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  370.915526]  ? check_preemption_disabled+0x48/0x280
[  370.920550]  ? kasan_check_read+0x11/0x20
[  370.924718]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  370.930018]  ? rcu_softirq_qs+0x20/0x20
[  370.933999]  ? preempt_schedule+0x4d/0x60
[  370.938171]  ? ___preempt_schedule+0x16/0x18
[  370.942584]  ? bpf_test_run+0x271/0x7a0
[  370.946582]  ? netlink_diag_dump+0x2a0/0x2a0
[  370.951282]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  370.956834]  ? bpf_test_init.isra.10+0x70/0x100
[  370.961507]  ? bpf_prog_test_run_skb+0x762/0xd60
[  370.966289]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  370.971144]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  370.976679]  ? fput+0x130/0x1a0
[  370.979961]  ? __bpf_prog_get+0x9b/0x290
[  370.984030]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  370.988874]  ? bpf_prog_test_run+0x130/0x1a0
[  370.993287]  ? __x64_sys_bpf+0x3d8/0x520
[  370.997350]  ? bpf_prog_get+0x20/0x20
[  371.001174]  ? do_syscall_64+0x1b9/0x820
[  371.005238]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  371.010607]  ? syscall_return_slowpath+0x5e0/0x5e0
[  371.015533]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.020378]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.025435]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  371.030465]  ? prepare_exit_to_usermode+0x291/0x3b0
[  371.035531]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.040378]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  371.045772] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  371.045853] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  371.052697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  371.052702] Call Trace:
[  371.052710]  <IRQ>
[  371.052727]  dump_stack+0x244/0x39d
[  371.052746]  ? dump_stack_print_info.cold.1+0x20/0x20
[  371.059317] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  371.068616]  warn_alloc.cold.116+0xb7/0x1bd
[  371.071184] syz-executor4 cpuset=syz4 mems_allowed=0
[  371.073330]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  371.107386]  ? lock_downgrade+0x900/0x900
[  371.111587]  ? trace_hardirqs_off+0xb8/0x310
[  371.116003]  ? trace_hardirqs_off+0xb8/0x310
[  371.120437]  __alloc_pages_slowpath+0x2651/0x2de0
[  371.125316]  ? warn_alloc+0x120/0x120
[  371.129128]  ? print_usage_bug+0xc0/0xc0
[  371.133189]  ? warn_alloc+0x120/0x120
[  371.136991]  ? warn_alloc+0x120/0x120
[  371.140788]  ? print_usage_bug+0xc0/0xc0
[  371.144884]  ? print_usage_bug+0xc0/0xc0
[  371.148954]  ? __lock_acquire+0x62f/0x4c20
[  371.153211]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.158749]  ? should_fail+0x22d/0xd01
[  371.162639]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.167758]  ? __lock_acquire+0x62f/0x4c20
[  371.171999]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.177130]  ? __lock_acquire+0x62f/0x4c20
[  371.181363]  ? should_fail+0x22d/0xd01
[  371.185276]  ? find_held_lock+0x36/0x1c0
[  371.189342]  ? mark_held_locks+0x130/0x130
[  371.193579]  ? mark_held_locks+0x130/0x130
[  371.197805]  ? zap_class+0x640/0x640
[  371.201510]  ? zap_class+0x640/0x640
[  371.205219]  ? print_usage_bug+0xc0/0xc0
[  371.209276]  ? do_raw_spin_unlock+0xa7/0x330
[  371.213677]  ? zap_class+0x640/0x640
[  371.217386]  ? print_usage_bug+0xc0/0xc0
[  371.221444]  ? wq_watchdog_touch+0x9c/0xfe
[  371.225676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.231212]  ? check_preemption_disabled+0x48/0x280
[  371.236231]  ? __lock_is_held+0xb5/0x140
[  371.240296]  __alloc_pages_nodemask+0xad8/0xea0
[  371.244962]  ? zap_class+0x640/0x640
[  371.248677]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  371.253698]  ? find_held_lock+0x36/0x1c0
[  371.257791]  ? ____cache_alloc_node+0x1c7/0x1e0
[  371.262454]  ? lock_downgrade+0x900/0x900
[  371.266616]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.272183]  cache_grow_begin+0xa5/0x8c0
[  371.276269]  ? do_raw_spin_unlock+0xa7/0x330
[  371.280693]  fallback_alloc+0x204/0x2e0
[  371.284668]  ____cache_alloc_node+0x1c7/0x1e0
[  371.289163]  kmem_cache_alloc_node+0xe3/0x730
[  371.293654]  ? ipv6_get_ifaddr+0x42e/0x620
[  371.297918]  __alloc_skb+0x119/0x770
[  371.301673]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.306984]  ? netdev_alloc_frag+0x1f0/0x1f0
[  371.311405]  ? lock_downgrade+0x900/0x900
[  371.315560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.321092]  ? refcount_sub_and_test_checked+0x203/0x310
[  371.326576]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  371.332024]  ? addrconf_rs_timer+0x690/0x690
[  371.336447]  ndisc_alloc_skb+0x144/0x340
[  371.340508]  ndisc_send_rs+0x331/0x6e0
[  371.344429]  addrconf_rs_timer+0x314/0x690
[  371.348709]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.352978]  call_timer_fn+0x272/0x920
[  371.356893]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.361161]  ? process_timeout+0x40/0x40
[  371.365228]  ? mark_held_locks+0xc7/0x130
[  371.369381]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.373869]  ? _raw_spin_unlock_irq+0x27/0x80
[  371.378359]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.382592]  ? lockdep_hardirqs_on+0x296/0x5b0
[  371.387174]  ? trace_hardirqs_on+0xbd/0x310
[  371.391504]  ? kasan_check_read+0x11/0x20
[  371.395647]  ? __run_timers+0x7da/0xc70
[  371.399620]  ? trace_hardirqs_off_caller+0x310/0x310
[  371.404722]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.408970]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  371.413196]  __run_timers+0x7e5/0xc70
[  371.416997]  ? timer_fixup_init+0x70/0x70
[  371.421160]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  371.426171]  ? zap_class+0x640/0x640
[  371.429915]  ? print_usage_bug+0xc0/0xc0
[  371.433978]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  371.439178]  ? find_held_lock+0x36/0x1c0
[  371.443250]  ? zap_class+0x640/0x640
[  371.446974]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.452517]  ? check_preemption_disabled+0x48/0x280
[  371.457549]  ? __lock_is_held+0xb5/0x140
[  371.461616]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.467161]  ? check_preemption_disabled+0x48/0x280
[  371.472188]  run_timer_softirq+0x52/0xb0
[  371.476252]  ? rcu_read_lock_sched_held+0x14f/0x180
[  371.481275]  __do_softirq+0x308/0xb7e
[  371.485081]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  371.489591]  ? lock_downgrade+0x900/0x900
[  371.493788]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  371.498917]  ? pvclock_read_flags+0x160/0x160
[  371.503429]  ? lapic_next_event+0x5a/0x90
[  371.507581]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.513159]  ? kvm_clock_read+0x18/0x30
[  371.517177]  ? kvm_sched_clock_read+0x9/0x20
[  371.521626]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.527203]  ? check_preemption_disabled+0x48/0x280
[  371.532257]  irq_exit+0x17f/0x1c0
[  371.535734]  smp_apic_timer_interrupt+0x1cb/0x760
[  371.540587]  ? smp_reschedule_interrupt+0x109/0x650
[  371.545609]  ? smp_call_function_single_interrupt+0x650/0x650
[  371.551496]  ? interrupt_entry+0xb5/0xc0
[  371.555564]  ? trace_hardirqs_off_caller+0xbb/0x310
[  371.560620]  ? trace_hardirqs_off_caller+0xbb/0x310
[  371.565640]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.570486]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.575565]  ? trace_hardirqs_on_caller+0x310/0x310
[  371.580616]  ? task_prio+0x50/0x50
[  371.584192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.589732]  ? check_preemption_disabled+0x48/0x280
[  371.594753]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  371.599602]  apic_timer_interrupt+0xf/0x20
[  371.603836]  </IRQ>
[  371.606089] RIP: 0010:lock_acquire+0x268/0x520
[  371.610691] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  371.629600] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  371.637312] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  371.644574] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  371.651855] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  371.659134] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  371.666402] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  371.673697]  ? lruvec_lru_size+0x450/0x450
[  371.677934]  ? kasan_check_read+0x11/0x20
[  371.682106]  ? lock_release+0xa00/0xa00
[  371.686093]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  371.691060]  down_read_trylock+0xda/0x140
[  371.695204]  ? shrink_slab+0x207/0x8c0
[  371.699109]  ? downgrade_write+0x270/0x270
[  371.703363]  shrink_slab+0x207/0x8c0
[  371.707084]  ? shrink_active_list+0x1f00/0x1f00
[  371.711775]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  371.717404]  ? __lock_acquire+0x62f/0x4c20
[  371.721646]  ? percpu_ref_get_many+0x240/0x240
[  371.726249]  ? print_usage_bug+0xc0/0xc0
[  371.730317]  shrink_node+0x431/0x16b0
[  371.734138]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  371.739439]  ? shrink_node_memcg+0x18f0/0x18f0
[  371.744027]  ? kvm_clock_read+0x18/0x30
[  371.748002]  ? ktime_get+0x2c1/0x400
[  371.751750]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  371.756246]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  371.761789]  ? __cpuset_node_allowed+0x19b/0x660
[  371.766539]  ? mark_held_locks+0x130/0x130
[  371.770783]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  371.776489]  ? zap_class+0x640/0x640
[  371.780219]  do_try_to_free_pages+0x3e7/0x1290
[  371.784794]  ? zap_class+0x640/0x640
[  371.788531]  ? shrink_node+0x16b0/0x16b0
[  371.792591]  ? __lock_is_held+0xb5/0x140
[  371.796659]  try_to_free_pages+0x4d0/0xb90
[  371.800896]  ? do_try_to_free_pages+0x1290/0x1290
[  371.805745]  ? lock_acquire+0x1ed/0x520
[  371.809722]  ? set_page_refcounted+0x280/0x280
[  371.814340]  ? lock_release+0xa00/0xa00
[  371.818327]  ? _raw_spin_unlock_irq+0x60/0x80
[  371.822839]  ? psi_memstall_enter+0x240/0x2b0
[  371.827335]  ? psi_memstall_tick+0x230/0x230
[  371.831753]  __alloc_pages_slowpath+0xa48/0x2de0
[  371.836536]  ? warn_alloc+0x120/0x120
[  371.840340]  ? mark_held_locks+0x130/0x130
[  371.844578]  ? find_get_entry+0xaae/0x1120
[  371.848820]  ? filemap_map_pages+0x1a20/0x1a20
[  371.853434]  ? zap_class+0x640/0x640
[  371.857160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  371.862704]  ? check_preemption_disabled+0x48/0x280
[  371.867742]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.873309]  ? should_fail+0x22d/0xd01
[  371.877208]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  371.882320]  ? zap_class+0x640/0x640
[  371.886065]  ? __lock_is_held+0xb5/0x140
[  371.890158]  ? mark_held_locks+0x130/0x130
[  371.894401]  ? lock_release+0xa00/0xa00
[  371.898392]  ? perf_trace_sched_process_exec+0x860/0x860
[  371.903846]  ? xa_load+0x2ba/0x460
[  371.907390]  ? lock_downgrade+0x900/0x900
[  371.911549]  ? __might_sleep+0x95/0x190
[  371.915531]  __alloc_pages_nodemask+0xad8/0xea0
[  371.920216]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  371.925242]  ? __page_cache_alloc+0x191/0x5c0
[  371.929741]  ? xa_load+0x2e1/0x460
[  371.933298]  ? xa_clear_mark+0x40/0x40
[  371.937206]  ? zap_class+0x640/0x640
[  371.940948]  ? zap_class+0x640/0x640
[  371.944686]  ? zap_class+0x640/0x640
[  371.948452]  ? __do_page_cache_readahead+0x663/0x810
[  371.953605]  ? find_held_lock+0x36/0x1c0
[  371.957704]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  371.963258]  alloc_pages_current+0x173/0x350
[  371.967713]  __page_cache_alloc+0x38c/0x5c0
[  371.972060]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  371.976992]  ? kasan_check_read+0x11/0x20
[  371.981196]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  371.986490]  ? generic_perform_write+0x6a0/0x6a0
[  371.991248]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  371.996782]  ? check_preemption_disabled+0x48/0x280
[  372.001807]  filemap_fault+0x1595/0x25f0
[  372.005902]  ? __lock_page_or_retry+0xa00/0xa00
[  372.010577]  ? mark_held_locks+0x130/0x130
[  372.014822]  ? filemap_map_pages+0xd6b/0x1a20
[  372.019318]  ? lock_downgrade+0x900/0x900
[  372.023465]  ? check_preemption_disabled+0x48/0x280
[  372.028481]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.033423]  ? kasan_check_read+0x11/0x20
[  372.037568]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.042841]  ? rcu_softirq_qs+0x20/0x20
[  372.046835]  ? filemap_map_pages+0xd92/0x1a20
[  372.051339]  ? find_get_entries_tag+0x1400/0x1400
[  372.056184]  ? debug_object_destroy+0x2b0/0x2b0
[  372.060863]  ? lock_pi_update_atomic+0x150/0x150
[  372.065627]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.071193]  ? lock_acquire+0x1ed/0x520
[  372.075170]  ? ext4_filemap_fault+0x7a/0xad
[  372.079498]  ? lock_release+0xa00/0xa00
[  372.083469]  ? perf_trace_sched_process_exec+0x860/0x860
[  372.088924]  ? print_usage_bug+0xc0/0xc0
[  372.092987]  ? print_usage_bug+0xc0/0xc0
[  372.097065]  ? down_read+0x8d/0x120
[  372.100714]  ? ext4_filemap_fault+0x7a/0xad
[  372.105053]  ? __down_interruptible+0x700/0x700
[  372.109731]  ext4_filemap_fault+0x82/0xad
[  372.113903]  __do_fault+0x100/0x6b0
[  372.117540]  ? find_held_lock+0x36/0x1c0
[  372.121605]  ? pmd_devmap_trans_unstable+0x220/0x220
[  372.126711]  ? mark_held_locks+0x130/0x130
[  372.130945]  ? mark_held_locks+0x130/0x130
[  372.135194]  ? kasan_check_read+0x11/0x20
[  372.139346]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.144904]  __handle_mm_fault+0x3ea0/0x5be0
[  372.149328]  ? perf_trace_lock+0x7a0/0x7a0
[  372.153584]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  372.158444]  ? __switch_to_asm+0x34/0x70
[  372.162514]  ? __switch_to_asm+0x34/0x70
[  372.166627]  ? zap_class+0x640/0x640
[  372.170345]  ? zap_class+0x640/0x640
[  372.174063]  ? __x64_sys_futex+0x53e/0x6a0
[  372.178307]  ? find_held_lock+0x36/0x1c0
[  372.182381]  ? handle_mm_fault+0x42a/0xc70
[  372.186621]  ? lock_downgrade+0x900/0x900
[  372.190772]  ? check_preemption_disabled+0x48/0x280
[  372.195793]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  372.200725]  ? kasan_check_read+0x11/0x20
[  372.204874]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.210150]  ? rcu_softirq_qs+0x20/0x20
[  372.214158]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.219284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.224826]  ? sync_mm_rss+0x9a/0x1c0
[  372.228663]  handle_mm_fault+0x54f/0xc70
[  372.232732]  ? __handle_mm_fault+0x5be0/0x5be0
[  372.237318]  ? find_vma+0x34/0x190
[  372.240864]  __do_page_fault+0x5e8/0xe60
[  372.244933]  ? trace_hardirqs_off+0xb8/0x310
[  372.249353]  do_page_fault+0xf2/0x7e0
[  372.253154]  ? vmalloc_sync_all+0x30/0x30
[  372.257308]  ? error_entry+0x70/0xd0
[  372.261026]  ? trace_hardirqs_off_caller+0xbb/0x310
[  372.266044]  ? trace_hardirqs_on_caller+0xc0/0x310
[  372.270989]  ? syscall_return_slowpath+0x5e0/0x5e0
[  372.275917]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.280760]  ? trace_hardirqs_on_caller+0x310/0x310
[  372.285773]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  372.291227]  ? prepare_exit_to_usermode+0x291/0x3b0
[  372.296255]  ? page_fault+0x8/0x30
[  372.299908]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  372.304782]  ? page_fault+0x8/0x30
[  372.308322]  page_fault+0x1e/0x30
[  372.311767] RIP: 0033:0x45ddf3
[  372.315006] Code: Bad RIP value.
[  372.318386] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  372.323753] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  372.331022] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  372.338320] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  372.345587] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  372.352851] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  372.360159] warn_alloc_show_mem: 1 callbacks suppressed
[  372.360171] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  372.360173] Mem-Info:
[  372.360204] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  372.360204]  active_file:17 inactive_file:17 isolated_file:0
[  372.360204]  unevictable:0 dirty:4 writeback:0 unstable:0
[  372.360204]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  372.360204]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  372.360204]  free:13550 free_pcp:124 free_cma:0
[  372.365556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  372.372840] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  372.375260] Call Trace:
[  372.408327] 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
[  372.417690]  <IRQ>
[  372.445446] lowmem_reserve[]: 0 2818 6321 6321
[  372.448037]  dump_stack+0x244/0x39d
[  372.474109] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  372.476258]  ? dump_stack_print_info.cold.1+0x20/0x20
[  372.480813] lowmem_reserve[]: 0 0 3503 3503
[  372.484445]  warn_alloc.cold.116+0xb7/0x1bd
[  372.511734] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  372.516933]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  372.521225] lowmem_reserve[]: 0 0 0 0
[  372.525538]  ? lock_downgrade+0x900/0x900
[  372.554441] 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
[  372.559288]  ? trace_hardirqs_off+0xb8/0x310
[  372.563064] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  372.567216]  ? trace_hardirqs_off+0xb8/0x310
[  372.580714] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  372.585164]  __alloc_pages_slowpath+0x2651/0x2de0
[  372.599902] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  372.604341]  ? warn_alloc+0x120/0x120
[  372.619067] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  372.623924]  ? print_usage_bug+0xc0/0xc0
[  372.632728] 1360 total pagecache pages
[  372.636524]  ? warn_alloc+0x120/0x120
[  372.645098] 0 pages in swap cache
[  372.649174]  ? warn_alloc+0x120/0x120
[  372.653040] Swap cache stats: add 0, delete 0, find 0/0
[  372.653050] Free swap  = 0kB
[  372.656858]  ? print_usage_bug+0xc0/0xc0
[  372.660283] Total swap = 0kB
[  372.660291] 1965979 pages RAM
[  372.664106]  ? print_usage_bug+0xc0/0xc0
[  372.669430] 0 pages HighMem/MovableOnly
[  372.669439] 342854 pages reserved
[  372.672459]  ? __lock_acquire+0x62f/0x4c20
[  372.676489] 0 pages cma reserved
[  372.679505]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  372.682661] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  372.686639]  ? should_fail+0x22d/0xd01
[  372.690651] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  372.694036]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.698336] syz-fuzzer cpuset=/ mems_allowed=0
[  372.701700]  ? __lock_acquire+0x62f/0x4c20
[  372.741711]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  372.746819]  ? __lock_acquire+0x62f/0x4c20
[  372.751066]  ? should_fail+0x22d/0xd01
[  372.754954]  ? find_held_lock+0x36/0x1c0
[  372.759023]  ? mark_held_locks+0x130/0x130
[  372.763274]  ? mark_held_locks+0x130/0x130
[  372.767508]  ? zap_class+0x640/0x640
[  372.771218]  ? zap_class+0x640/0x640
[  372.774929]  ? print_usage_bug+0xc0/0xc0
[  372.778981]  ? do_raw_spin_unlock+0xa7/0x330
[  372.783381]  ? zap_class+0x640/0x640
[  372.787093]  ? print_usage_bug+0xc0/0xc0
[  372.791186]  ? wq_watchdog_touch+0x9c/0xfe
[  372.795426]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.800986]  ? check_preemption_disabled+0x48/0x280
[  372.806040]  ? __lock_is_held+0xb5/0x140
[  372.810106]  __alloc_pages_nodemask+0xad8/0xea0
[  372.814797]  ? zap_class+0x640/0x640
[  372.818530]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  372.823570]  ? find_held_lock+0x36/0x1c0
[  372.827670]  ? ____cache_alloc_node+0x1c7/0x1e0
[  372.832372]  ? lock_downgrade+0x900/0x900
[  372.836547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.842101]  cache_grow_begin+0xa5/0x8c0
[  372.846165]  ? do_raw_spin_unlock+0xa7/0x330
[  372.850578]  fallback_alloc+0x204/0x2e0
[  372.854572]  ____cache_alloc_node+0x1c7/0x1e0
[  372.859097]  kmem_cache_alloc_node+0xe3/0x730
[  372.863608]  ? ipv6_get_ifaddr+0x42e/0x620
[  372.867846]  __alloc_skb+0x119/0x770
[  372.871551]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  372.876830]  ? netdev_alloc_frag+0x1f0/0x1f0
[  372.881249]  ? lock_downgrade+0x900/0x900
[  372.885423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  372.890960]  ? refcount_sub_and_test_checked+0x203/0x310
[  372.896419]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  372.901920]  ? addrconf_rs_timer+0x690/0x690
[  372.906346]  ndisc_alloc_skb+0x144/0x340
[  372.910419]  ndisc_send_rs+0x331/0x6e0
[  372.914313]  addrconf_rs_timer+0x314/0x690
[  372.918570]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.922839]  call_timer_fn+0x272/0x920
[  372.926725]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.930958]  ? process_timeout+0x40/0x40
[  372.935058]  ? __run_timers+0x7da/0xc70
[  372.939030]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.943522]  ? _raw_spin_unlock_irq+0x27/0x80
[  372.948177]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.952430]  ? lockdep_hardirqs_on+0x296/0x5b0
[  372.957014]  ? trace_hardirqs_on+0xbd/0x310
[  372.961334]  ? kasan_check_read+0x11/0x20
[  372.965481]  ? __run_timers+0x7da/0xc70
[  372.969454]  ? trace_hardirqs_off_caller+0x310/0x310
[  372.974560]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.978797]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  372.983044]  __run_timers+0x7e5/0xc70
[  372.986881]  ? timer_fixup_init+0x70/0x70
[  372.991049]  ? kasan_check_read+0x11/0x20
[  372.995212]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.000492]  ? rcu_softirq_qs+0x20/0x20
[  373.004468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.010011]  ? check_preemption_disabled+0x48/0x280
[  373.015037]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  373.019808]  ? retint_kernel+0x2d/0x2d
[  373.023697]  ? trace_hardirqs_on_caller+0xc0/0x310
[  373.028641]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  373.033442]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  373.038897]  ? zap_class+0x640/0x640
[  373.042617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.048159]  ? check_preemption_disabled+0x48/0x280
[  373.053282]  ? __lock_is_held+0xb5/0x140
[  373.057346]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.062892]  ? check_preemption_disabled+0x48/0x280
[  373.067927]  run_timer_softirq+0x52/0xb0
[  373.072006]  ? rcu_read_lock_sched_held+0x14f/0x180
[  373.077027]  __do_softirq+0x308/0xb7e
[  373.081009]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  373.085501]  ? lock_downgrade+0x900/0x900
[  373.089659]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  373.094773]  ? pvclock_read_flags+0x160/0x160
[  373.099270]  ? lapic_next_event+0x5a/0x90
[  373.103465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.109019]  ? kvm_clock_read+0x18/0x30
[  373.113003]  ? kvm_sched_clock_read+0x9/0x20
[  373.117424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.122983]  ? check_preemption_disabled+0x48/0x280
[  373.128012]  irq_exit+0x17f/0x1c0
[  373.131475]  smp_apic_timer_interrupt+0x1cb/0x760
[  373.136318]  ? smp_reschedule_interrupt+0x109/0x650
[  373.141339]  ? smp_call_function_single_interrupt+0x650/0x650
[  373.147225]  ? interrupt_entry+0xb5/0xc0
[  373.151287]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.156322]  ? trace_hardirqs_off_caller+0xbb/0x310
[  373.161367]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.166250]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.171307]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.176349]  ? task_prio+0x50/0x50
[  373.179932]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.185483]  ? check_preemption_disabled+0x48/0x280
[  373.190513]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.195366]  apic_timer_interrupt+0xf/0x20
[  373.199605]  </IRQ>
[  373.201869] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  373.206816] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  373.225713] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  373.233433] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  373.240701] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  373.247966] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  373.255230] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  373.262496] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  373.269818]  skb_clone+0x1bb/0x500
[  373.273379]  ? skb_split+0x11e0/0x11e0
[  373.277293]  ? preempt_notifier_register+0x200/0x200
[  373.282402]  ? __switch_to_asm+0x34/0x70
[  373.286486]  ? __switch_to_asm+0x34/0x70
[  373.290556]  ? __switch_to_asm+0x40/0x70
[  373.294608]  ? __switch_to_asm+0x34/0x70
[  373.298666]  ? __switch_to_asm+0x40/0x70
[  373.302727]  ? __switch_to_asm+0x40/0x70
[  373.306797]  ? __switch_to_asm+0x34/0x70
[  373.310872]  ? __switch_to_asm+0x34/0x70
[  373.314928]  ? __switch_to_asm+0x40/0x70
[  373.318987]  ? __switch_to_asm+0x34/0x70
[  373.323050]  bpf_clone_redirect+0xb9/0x490
[  373.327293]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  373.332310]  ? __sched_text_start+0x8/0x8
[  373.336459]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  373.341220]  ? find_held_lock+0x36/0x1c0
[  373.345284]  ? lock_acquire+0x1ed/0x520
[  373.349264]  ? bpf_test_run+0x3ee/0x7a0
[  373.353239]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.358789]  ? check_preemption_disabled+0x48/0x280
[  373.363850]  ? kasan_check_read+0x11/0x20
[  373.368011]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.373288]  ? rcu_softirq_qs+0x20/0x20
[  373.377288]  ? preempt_schedule+0x4d/0x60
[  373.381446]  ? ___preempt_schedule+0x16/0x18
[  373.385860]  ? bpf_test_run+0x271/0x7a0
[  373.389867]  ? netlink_diag_dump+0x2a0/0x2a0
[  373.394298]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.399837]  ? bpf_test_init.isra.10+0x70/0x100
[  373.404510]  ? bpf_prog_test_run_skb+0x762/0xd60
[  373.409294]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  373.414146]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  373.419683]  ? fput+0x130/0x1a0
[  373.422966]  ? __bpf_prog_get+0x9b/0x290
[  373.427027]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  373.431881]  ? bpf_prog_test_run+0x130/0x1a0
[  373.436303]  ? __x64_sys_bpf+0x3d8/0x520
[  373.440373]  ? bpf_prog_get+0x20/0x20
[  373.444226]  ? do_syscall_64+0x1b9/0x820
[  373.448299]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  373.453688]  ? syscall_return_slowpath+0x5e0/0x5e0
[  373.458615]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.463458]  ? trace_hardirqs_on_caller+0x310/0x310
[  373.468473]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  373.473489]  ? prepare_exit_to_usermode+0x291/0x3b0
[  373.478513]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  373.483377]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  373.488767] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  373.488858] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  373.495703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  373.495708] Call Trace:
[  373.495725]  <IRQ>
[  373.495742]  dump_stack+0x244/0x39d
[  373.495773]  ? dump_stack_print_info.cold.1+0x20/0x20
[  373.502339] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  373.511603]  warn_alloc.cold.116+0xb7/0x1bd
[  373.514157] syz-executor4 cpuset=syz4 mems_allowed=0
[  373.516305]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  373.549809]  ? lock_downgrade+0x900/0x900
[  373.553975]  ? trace_hardirqs_off+0xb8/0x310
[  373.558395]  ? trace_hardirqs_off+0xb8/0x310
[  373.562815]  __alloc_pages_slowpath+0x2651/0x2de0
[  373.567683]  ? warn_alloc+0x120/0x120
[  373.571485]  ? print_usage_bug+0xc0/0xc0
[  373.575548]  ? warn_alloc+0x120/0x120
[  373.579349]  ? warn_alloc+0x120/0x120
[  373.583149]  ? print_usage_bug+0xc0/0xc0
[  373.587212]  ? print_usage_bug+0xc0/0xc0
[  373.591275]  ? __lock_acquire+0x62f/0x4c20
[  373.595512]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.601047]  ? should_fail+0x22d/0xd01
[  373.604936]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.610047]  ? __lock_acquire+0x62f/0x4c20
[  373.614277]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  373.619370]  ? __lock_acquire+0x62f/0x4c20
[  373.623599]  ? should_fail+0x22d/0xd01
[  373.627482]  ? find_held_lock+0x36/0x1c0
[  373.631550]  ? mark_held_locks+0x130/0x130
[  373.635795]  ? mark_held_locks+0x130/0x130
[  373.640022]  ? zap_class+0x640/0x640
[  373.643733]  ? zap_class+0x640/0x640
[  373.647474]  ? print_usage_bug+0xc0/0xc0
[  373.651555]  ? do_raw_spin_unlock+0xa7/0x330
[  373.655966]  ? zap_class+0x640/0x640
[  373.659688]  ? print_usage_bug+0xc0/0xc0
[  373.663747]  ? wq_watchdog_touch+0x9c/0xfe
[  373.667980]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.673516]  ? check_preemption_disabled+0x48/0x280
[  373.678545]  ? __lock_is_held+0xb5/0x140
[  373.682625]  __alloc_pages_nodemask+0xad8/0xea0
[  373.687292]  ? zap_class+0x640/0x640
[  373.691004]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  373.696023]  ? find_held_lock+0x36/0x1c0
[  373.700087]  ? ____cache_alloc_node+0x1c7/0x1e0
[  373.704771]  ? lock_downgrade+0x900/0x900
[  373.708951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.714504]  cache_grow_begin+0xa5/0x8c0
[  373.718557]  ? do_raw_spin_unlock+0xa7/0x330
[  373.722984]  fallback_alloc+0x204/0x2e0
[  373.726961]  ____cache_alloc_node+0x1c7/0x1e0
[  373.731456]  kmem_cache_alloc_node+0xe3/0x730
[  373.735944]  ? ipv6_get_ifaddr+0x42e/0x620
[  373.740183]  __alloc_skb+0x119/0x770
[  373.743894]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  373.749176]  ? netdev_alloc_frag+0x1f0/0x1f0
[  373.753602]  ? lock_downgrade+0x900/0x900
[  373.757749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.763279]  ? refcount_sub_and_test_checked+0x203/0x310
[  373.768725]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  373.774188]  ? addrconf_rs_timer+0x690/0x690
[  373.778628]  ndisc_alloc_skb+0x144/0x340
[  373.782685]  ndisc_send_rs+0x331/0x6e0
[  373.786583]  addrconf_rs_timer+0x314/0x690
[  373.790831]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.795106]  call_timer_fn+0x272/0x920
[  373.798997]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.803273]  ? process_timeout+0x40/0x40
[  373.807336]  ? mark_held_locks+0xc7/0x130
[  373.811480]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.815990]  ? _raw_spin_unlock_irq+0x27/0x80
[  373.820496]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.824740]  ? lockdep_hardirqs_on+0x296/0x5b0
[  373.829319]  ? trace_hardirqs_on+0xbd/0x310
[  373.833635]  ? kasan_check_read+0x11/0x20
[  373.837774]  ? __run_timers+0x7da/0xc70
[  373.841743]  ? trace_hardirqs_off_caller+0x310/0x310
[  373.846861]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.851164]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  373.855419]  __run_timers+0x7e5/0xc70
[  373.859237]  ? timer_fixup_init+0x70/0x70
[  373.863417]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  373.868466]  ? zap_class+0x640/0x640
[  373.872197]  ? print_usage_bug+0xc0/0xc0
[  373.876350]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  373.881540]  ? find_held_lock+0x36/0x1c0
[  373.885599]  ? zap_class+0x640/0x640
[  373.889312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.894896]  ? check_preemption_disabled+0x48/0x280
[  373.899919]  ? __lock_is_held+0xb5/0x140
[  373.903977]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.909515]  ? check_preemption_disabled+0x48/0x280
[  373.914534]  run_timer_softirq+0x52/0xb0
[  373.918639]  ? rcu_read_lock_sched_held+0x14f/0x180
[  373.923687]  __do_softirq+0x308/0xb7e
[  373.927491]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  373.931986]  ? lock_downgrade+0x900/0x900
[  373.936145]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  373.941262]  ? pvclock_read_flags+0x160/0x160
[  373.945756]  ? lapic_next_event+0x5a/0x90
[  373.949941]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  373.955488]  ? kvm_clock_read+0x18/0x30
[  373.959462]  ? kvm_sched_clock_read+0x9/0x20
[  373.963873]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  373.969429]  ? check_preemption_disabled+0x48/0x280
[  373.974481]  irq_exit+0x17f/0x1c0
[  373.977937]  smp_apic_timer_interrupt+0x1cb/0x760
[  373.982785]  ? smp_reschedule_interrupt+0x109/0x650
[  373.987799]  ? smp_call_function_single_interrupt+0x650/0x650
[  373.993697]  ? interrupt_entry+0xb5/0xc0
[  373.997755]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.002768]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.007785]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.012620]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.017639]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.022654]  ? task_prio+0x50/0x50
[  374.026190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.031732]  ? check_preemption_disabled+0x48/0x280
[  374.036793]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.041635]  apic_timer_interrupt+0xf/0x20
[  374.045868]  </IRQ>
[  374.048100] RIP: 0010:lock_acquire+0x268/0x520
[  374.052682] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  374.071590] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  374.079292] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  374.086571] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  374.093833] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  374.101093] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  374.108378] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  374.115668]  ? lruvec_lru_size+0x450/0x450
[  374.119924]  ? kasan_check_read+0x11/0x20
[  374.124128]  ? lock_release+0xa00/0xa00
[  374.128140]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  374.133071]  down_read_trylock+0xda/0x140
[  374.137276]  ? shrink_slab+0x207/0x8c0
[  374.141156]  ? downgrade_write+0x270/0x270
[  374.145399]  shrink_slab+0x207/0x8c0
[  374.149107]  ? shrink_active_list+0x1f00/0x1f00
[  374.153791]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  374.159426]  ? __lock_acquire+0x62f/0x4c20
[  374.163684]  ? percpu_ref_get_many+0x240/0x240
[  374.168408]  ? print_usage_bug+0xc0/0xc0
[  374.172491]  shrink_node+0x431/0x16b0
[  374.176304]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  374.181608]  ? shrink_node_memcg+0x18f0/0x18f0
[  374.186247]  ? kvm_clock_read+0x18/0x30
[  374.190229]  ? ktime_get+0x2c1/0x400
[  374.193939]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  374.198447]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  374.203980]  ? __cpuset_node_allowed+0x19b/0x660
[  374.208728]  ? mark_held_locks+0x130/0x130
[  374.212959]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  374.218678]  ? zap_class+0x640/0x640
[  374.222457]  do_try_to_free_pages+0x3e7/0x1290
[  374.227034]  ? zap_class+0x640/0x640
[  374.230757]  ? shrink_node+0x16b0/0x16b0
[  374.234820]  ? __lock_is_held+0xb5/0x140
[  374.238927]  try_to_free_pages+0x4d0/0xb90
[  374.243192]  ? do_try_to_free_pages+0x1290/0x1290
[  374.248043]  ? lock_acquire+0x1ed/0x520
[  374.252015]  ? set_page_refcounted+0x280/0x280
[  374.256596]  ? lock_release+0xa00/0xa00
[  374.260564]  ? _raw_spin_unlock_irq+0x60/0x80
[  374.265050]  ? psi_memstall_enter+0x240/0x2b0
[  374.269550]  ? psi_memstall_tick+0x230/0x230
[  374.273965]  __alloc_pages_slowpath+0xa48/0x2de0
[  374.278738]  ? warn_alloc+0x120/0x120
[  374.282532]  ? mark_held_locks+0x130/0x130
[  374.286822]  ? find_get_entry+0xaae/0x1120
[  374.291071]  ? filemap_map_pages+0x1a20/0x1a20
[  374.295649]  ? zap_class+0x640/0x640
[  374.299362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.304911]  ? check_preemption_disabled+0x48/0x280
[  374.309953]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.315487]  ? should_fail+0x22d/0xd01
[  374.319388]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  374.324549]  ? zap_class+0x640/0x640
[  374.328309]  ? __lock_is_held+0xb5/0x140
[  374.332392]  ? mark_held_locks+0x130/0x130
[  374.336637]  ? lock_release+0xa00/0xa00
[  374.340621]  ? perf_trace_sched_process_exec+0x860/0x860
[  374.346064]  ? xa_load+0x2ba/0x460
[  374.349626]  ? lock_downgrade+0x900/0x900
[  374.353783]  ? __might_sleep+0x95/0x190
[  374.357756]  __alloc_pages_nodemask+0xad8/0xea0
[  374.362441]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  374.367471]  ? __page_cache_alloc+0x191/0x5c0
[  374.371956]  ? xa_load+0x2e1/0x460
[  374.375490]  ? xa_clear_mark+0x40/0x40
[  374.379370]  ? zap_class+0x640/0x640
[  374.383084]  ? zap_class+0x640/0x640
[  374.386798]  ? zap_class+0x640/0x640
[  374.390518]  ? __do_page_cache_readahead+0x663/0x810
[  374.395618]  ? find_held_lock+0x36/0x1c0
[  374.399675]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  374.405213]  alloc_pages_current+0x173/0x350
[  374.409621]  __page_cache_alloc+0x38c/0x5c0
[  374.413952]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  374.418876]  ? kasan_check_read+0x11/0x20
[  374.423023]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.428302]  ? generic_perform_write+0x6a0/0x6a0
[  374.433059]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.438597]  ? check_preemption_disabled+0x48/0x280
[  374.443619]  filemap_fault+0x1595/0x25f0
[  374.447692]  ? __lock_page_or_retry+0xa00/0xa00
[  374.452359]  ? mark_held_locks+0x130/0x130
[  374.456600]  ? filemap_map_pages+0xd6b/0x1a20
[  374.461092]  ? lock_downgrade+0x900/0x900
[  374.465262]  ? check_preemption_disabled+0x48/0x280
[  374.470355]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  374.475308]  ? kasan_check_read+0x11/0x20
[  374.479451]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.484728]  ? rcu_softirq_qs+0x20/0x20
[  374.488715]  ? filemap_map_pages+0xd92/0x1a20
[  374.493251]  ? find_get_entries_tag+0x1400/0x1400
[  374.498093]  ? debug_object_destroy+0x2b0/0x2b0
[  374.502775]  ? lock_pi_update_atomic+0x150/0x150
[  374.507541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.513092]  ? lock_acquire+0x1ed/0x520
[  374.517074]  ? ext4_filemap_fault+0x7a/0xad
[  374.521421]  ? lock_release+0xa00/0xa00
[  374.525397]  ? perf_trace_sched_process_exec+0x860/0x860
[  374.530851]  ? print_usage_bug+0xc0/0xc0
[  374.534916]  ? print_usage_bug+0xc0/0xc0
[  374.538992]  ? down_read+0x8d/0x120
[  374.542644]  ? ext4_filemap_fault+0x7a/0xad
[  374.546967]  ? __down_interruptible+0x700/0x700
[  374.551644]  ext4_filemap_fault+0x82/0xad
[  374.555795]  __do_fault+0x100/0x6b0
[  374.559432]  ? find_held_lock+0x36/0x1c0
[  374.563497]  ? pmd_devmap_trans_unstable+0x220/0x220
[  374.568603]  ? mark_held_locks+0x130/0x130
[  374.572843]  ? mark_held_locks+0x130/0x130
[  374.577105]  ? kasan_check_read+0x11/0x20
[  374.581264]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  374.586809]  __handle_mm_fault+0x3ea0/0x5be0
[  374.591217]  ? perf_trace_lock+0x7a0/0x7a0
[  374.595479]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  374.600333]  ? __switch_to_asm+0x34/0x70
[  374.604391]  ? __switch_to_asm+0x34/0x70
[  374.608471]  ? zap_class+0x640/0x640
[  374.612188]  ? zap_class+0x640/0x640
[  374.615904]  ? __x64_sys_futex+0x53e/0x6a0
[  374.620161]  ? find_held_lock+0x36/0x1c0
[  374.624230]  ? handle_mm_fault+0x42a/0xc70
[  374.628467]  ? lock_downgrade+0x900/0x900
[  374.632613]  ? check_preemption_disabled+0x48/0x280
[  374.637643]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  374.642580]  ? kasan_check_read+0x11/0x20
[  374.646724]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  374.651992]  ? rcu_softirq_qs+0x20/0x20
[  374.655962]  ? trace_hardirqs_off_caller+0x310/0x310
[  374.661066]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  374.666643]  ? sync_mm_rss+0x9a/0x1c0
[  374.670475]  handle_mm_fault+0x54f/0xc70
[  374.674548]  ? __handle_mm_fault+0x5be0/0x5be0
[  374.679182]  ? find_vma+0x34/0x190
[  374.682736]  __do_page_fault+0x5e8/0xe60
[  374.686813]  ? trace_hardirqs_off+0xb8/0x310
[  374.691774]  do_page_fault+0xf2/0x7e0
[  374.695569]  ? vmalloc_sync_all+0x30/0x30
[  374.699741]  ? error_entry+0x70/0xd0
[  374.703478]  ? trace_hardirqs_off_caller+0xbb/0x310
[  374.708490]  ? trace_hardirqs_on_caller+0xc0/0x310
[  374.713427]  ? syscall_return_slowpath+0x5e0/0x5e0
[  374.718351]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.723209]  ? trace_hardirqs_on_caller+0x310/0x310
[  374.728215]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  374.733663]  ? prepare_exit_to_usermode+0x291/0x3b0
[  374.738671]  ? page_fault+0x8/0x30
[  374.742222]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  374.747059]  ? page_fault+0x8/0x30
[  374.750594]  page_fault+0x1e/0x30
[  374.754035] RIP: 0033:0x45ddf3
[  374.757251] Code: Bad RIP value.
[  374.760606] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  374.765967] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  374.773224] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  374.780498] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  374.787775] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  374.795038] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  374.802326] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  374.802332] warn_alloc_show_mem: 1 callbacks suppressed
[  374.802338] Mem-Info:
[  374.809606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  374.814965] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  374.814965]  active_file:17 inactive_file:17 isolated_file:0
[  374.814965]  unevictable:0 dirty:4 writeback:0 unstable:0
[  374.814965]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  374.814965]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  374.814965]  free:13550 free_pcp:124 free_cma:0
[  374.817337] Call Trace:
[  374.826718] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  374.859735]  <IRQ>
[  374.862304] 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
[  374.890054]  dump_stack+0x244/0x39d
[  374.892177] lowmem_reserve[]: 0 2818 6321 6321
[  374.918281]  ? dump_stack_print_info.cold.1+0x20/0x20
[  374.921906] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  374.926485]  warn_alloc.cold.116+0xb7/0x1bd
[  374.931639] lowmem_reserve[]: 0 0 3503 3503
[  374.959223]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  374.963519] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  374.967847]  ? lock_downgrade+0x900/0x900
[  374.972662] lowmem_reserve[]: 0 0 0 0
[  375.001556]  ? trace_hardirqs_off+0xb8/0x310
[  375.005669] 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
[  375.009457]  ? trace_hardirqs_off+0xb8/0x310
[  375.013847] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  375.027360]  __alloc_pages_slowpath+0x2651/0x2de0
[  375.031739] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  375.046482]  ? warn_alloc+0x120/0x120
[  375.051282] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  375.066000]  ? print_usage_bug+0xc0/0xc0
[  375.069779] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  375.078592]  ? warn_alloc+0x120/0x120
[  375.083149] 1360 total pagecache pages
[  375.091714]  ? warn_alloc+0x120/0x120
[  375.095507] 0 pages in swap cache
[  375.099375]  ? print_usage_bug+0xc0/0xc0
[  375.103176] Swap cache stats: add 0, delete 0, find 0/0
[  375.106617]  ? kvm_clock_read+0x18/0x30
[  375.110665] Free swap  = 0kB
[  375.116058]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  375.120019] Total swap = 0kB
[  375.123027]  ? print_usage_bug+0xc0/0xc0
[  375.128015] 1965979 pages RAM
[  375.131036]  ? __lock_acquire+0x62f/0x4c20
[  375.135070] 0 pages HighMem/MovableOnly
[  375.138166]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.142383] 342854 pages reserved
[  375.146373]  ? should_fail+0x22d/0xd01
[  375.151894] 0 pages cma reserved
[  375.155343]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.159270] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  375.162554]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.162567]  ? __lock_acquire+0x62f/0x4c20
[  375.162582]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  375.167901] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  375.174312]  ? __lock_acquire+0x62f/0x4c20
[  375.179389] syz-fuzzer cpuset=/ mems_allowed=0
[  375.183613]  ? should_fail+0x22d/0xd01
[  375.183657]  ? rcu_irq_exit+0x1a2/0x390
[  375.215572]  ? mark_held_locks+0x130/0x130
[  375.219819]  ? mark_held_locks+0x130/0x130
[  375.224066]  ? mark_held_locks+0xc7/0x130
[  375.228211]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  375.233241]  ? zap_class+0x640/0x640
[  375.236959]  ? print_usage_bug+0xc0/0xc0
[  375.241035]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.246577]  ? check_preemption_disabled+0x48/0x280
[  375.251628]  ? __lock_is_held+0xb5/0x140
[  375.255696]  __alloc_pages_nodemask+0xad8/0xea0
[  375.260362]  ? zap_class+0x640/0x640
[  375.264086]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  375.269108]  ? find_held_lock+0x36/0x1c0
[  375.273200]  ? ____cache_alloc_node+0x1c7/0x1e0
[  375.277863]  ? lock_downgrade+0x900/0x900
[  375.282011]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.287548]  cache_grow_begin+0xa5/0x8c0
[  375.291605]  ? do_raw_spin_unlock+0xa7/0x330
[  375.296028]  fallback_alloc+0x204/0x2e0
[  375.300016]  ____cache_alloc_node+0x1c7/0x1e0
[  375.304511]  kmem_cache_alloc_node+0xe3/0x730
[  375.309035]  ? ipv6_get_ifaddr+0x42e/0x620
[  375.313277]  __alloc_skb+0x119/0x770
[  375.316983]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.322270]  ? netdev_alloc_frag+0x1f0/0x1f0
[  375.326706]  ? lock_downgrade+0x900/0x900
[  375.330857]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.336410]  ? refcount_sub_and_test_checked+0x203/0x310
[  375.341891]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  375.347332]  ? addrconf_rs_timer+0x690/0x690
[  375.351761]  ndisc_alloc_skb+0x144/0x340
[  375.355817]  ndisc_send_rs+0x331/0x6e0
[  375.359707]  addrconf_rs_timer+0x314/0x690
[  375.363941]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.368180]  call_timer_fn+0x272/0x920
[  375.372060]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.376288]  ? process_timeout+0x40/0x40
[  375.380348]  ? __run_timers+0x7da/0xc70
[  375.384318]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.388807]  ? _raw_spin_unlock_irq+0x27/0x80
[  375.393296]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.397555]  ? lockdep_hardirqs_on+0x296/0x5b0
[  375.402140]  ? trace_hardirqs_on+0xbd/0x310
[  375.406471]  ? kasan_check_read+0x11/0x20
[  375.410626]  ? __run_timers+0x7da/0xc70
[  375.414594]  ? trace_hardirqs_off_caller+0x310/0x310
[  375.419695]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.423948]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  375.428180]  __run_timers+0x7e5/0xc70
[  375.432005]  ? timer_fixup_init+0x70/0x70
[  375.436185]  ? kasan_check_read+0x11/0x20
[  375.440329]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.445600]  ? rcu_softirq_qs+0x20/0x20
[  375.449600]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.455156]  ? check_preemption_disabled+0x48/0x280
[  375.460181]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  375.464970]  ? retint_kernel+0x2d/0x2d
[  375.468856]  ? trace_hardirqs_on_caller+0xc0/0x310
[  375.473801]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  375.478557]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  375.484007]  ? zap_class+0x640/0x640
[  375.487725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.493262]  ? check_preemption_disabled+0x48/0x280
[  375.498283]  ? __lock_is_held+0xb5/0x140
[  375.502359]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.507894]  ? check_preemption_disabled+0x48/0x280
[  375.512909]  run_timer_softirq+0x52/0xb0
[  375.516968]  ? rcu_read_lock_sched_held+0x14f/0x180
[  375.521981]  __do_softirq+0x308/0xb7e
[  375.525794]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  375.530283]  ? lock_downgrade+0x900/0x900
[  375.534428]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  375.539532]  ? pvclock_read_flags+0x160/0x160
[  375.544053]  ? lapic_next_event+0x5a/0x90
[  375.548210]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.553748]  ? kvm_clock_read+0x18/0x30
[  375.557750]  ? kvm_sched_clock_read+0x9/0x20
[  375.562188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.567724]  ? check_preemption_disabled+0x48/0x280
[  375.572744]  irq_exit+0x17f/0x1c0
[  375.576204]  smp_apic_timer_interrupt+0x1cb/0x760
[  375.581044]  ? smp_reschedule_interrupt+0x109/0x650
[  375.586055]  ? smp_call_function_single_interrupt+0x650/0x650
[  375.591948]  ? interrupt_entry+0xb5/0xc0
[  375.596020]  ? trace_hardirqs_off_caller+0xbb/0x310
[  375.601030]  ? trace_hardirqs_off_caller+0xbb/0x310
[  375.606049]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.610908]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.615925]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.620940]  ? task_prio+0x50/0x50
[  375.624479]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.630019]  ? check_preemption_disabled+0x48/0x280
[  375.635039]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.639902]  apic_timer_interrupt+0xf/0x20
[  375.644155]  </IRQ>
[  375.646413] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  375.651347] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  375.670249] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  375.677954] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  375.685224] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  375.692491] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  375.699758] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  375.707024] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  375.714340]  skb_clone+0x1bb/0x500
[  375.717879]  ? skb_split+0x11e0/0x11e0
[  375.721769]  ? preempt_notifier_register+0x200/0x200
[  375.726872]  ? __switch_to_asm+0x34/0x70
[  375.730943]  ? __switch_to_asm+0x34/0x70
[  375.734996]  ? __switch_to_asm+0x40/0x70
[  375.739048]  ? __switch_to_asm+0x34/0x70
[  375.743099]  ? __switch_to_asm+0x40/0x70
[  375.747157]  ? __switch_to_asm+0x40/0x70
[  375.751207]  ? __switch_to_asm+0x34/0x70
[  375.755262]  ? __switch_to_asm+0x34/0x70
[  375.759321]  ? __switch_to_asm+0x40/0x70
[  375.763373]  ? __switch_to_asm+0x34/0x70
[  375.767498]  bpf_clone_redirect+0xb9/0x490
[  375.771755]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  375.776773]  ? __sched_text_start+0x8/0x8
[  375.780914]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  375.785672]  ? find_held_lock+0x36/0x1c0
[  375.789741]  ? lock_acquire+0x1ed/0x520
[  375.793725]  ? bpf_test_run+0x3ee/0x7a0
[  375.797709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  375.803247]  ? check_preemption_disabled+0x48/0x280
[  375.808266]  ? kasan_check_read+0x11/0x20
[  375.812427]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  375.817700]  ? rcu_softirq_qs+0x20/0x20
[  375.821675]  ? preempt_schedule+0x4d/0x60
[  375.825832]  ? ___preempt_schedule+0x16/0x18
[  375.830244]  ? bpf_test_run+0x271/0x7a0
[  375.834222]  ? netlink_diag_dump+0x2a0/0x2a0
[  375.838623]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  375.844160]  ? bpf_test_init.isra.10+0x70/0x100
[  375.848829]  ? bpf_prog_test_run_skb+0x762/0xd60
[  375.853587]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  375.858433]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  375.863979]  ? fput+0x130/0x1a0
[  375.867257]  ? __bpf_prog_get+0x9b/0x290
[  375.871317]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  375.876184]  ? bpf_prog_test_run+0x130/0x1a0
[  375.880612]  ? __x64_sys_bpf+0x3d8/0x520
[  375.884689]  ? bpf_prog_get+0x20/0x20
[  375.888529]  ? do_syscall_64+0x1b9/0x820
[  375.892606]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  375.897970]  ? syscall_return_slowpath+0x5e0/0x5e0
[  375.902893]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.907734]  ? trace_hardirqs_on_caller+0x310/0x310
[  375.912753]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  375.917771]  ? prepare_exit_to_usermode+0x291/0x3b0
[  375.922799]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  375.927650]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  375.933028] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  375.933160] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  375.939977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  375.946540] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  375.955786] Call Trace:
[  375.966249] syz-executor4 cpuset=syz4 mems_allowed=0
[  375.968814]  <IRQ>
[  375.976086]  dump_stack+0x244/0x39d
[  375.979722]  ? dump_stack_print_info.cold.1+0x20/0x20
[  375.984927]  warn_alloc.cold.116+0xb7/0x1bd
[  375.989247]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  375.994090]  ? lock_downgrade+0x900/0x900
[  375.998246]  ? trace_hardirqs_off+0xb8/0x310
[  376.002652]  ? trace_hardirqs_off+0xb8/0x310
[  376.007069]  __alloc_pages_slowpath+0x2651/0x2de0
[  376.011943]  ? warn_alloc+0x120/0x120
[  376.015744]  ? print_usage_bug+0xc0/0xc0
[  376.019826]  ? warn_alloc+0x120/0x120
[  376.023631]  ? warn_alloc+0x120/0x120
[  376.027443]  ? print_usage_bug+0xc0/0xc0
[  376.031509]  ? print_usage_bug+0xc0/0xc0
[  376.035568]  ? __lock_acquire+0x62f/0x4c20
[  376.039819]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.045360]  ? should_fail+0x22d/0xd01
[  376.049253]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.054357]  ? __lock_acquire+0x62f/0x4c20
[  376.058595]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.063696]  ? __lock_acquire+0x62f/0x4c20
[  376.067925]  ? should_fail+0x22d/0xd01
[  376.071805]  ? find_held_lock+0x36/0x1c0
[  376.075866]  ? mark_held_locks+0x130/0x130
[  376.080101]  ? mark_held_locks+0x130/0x130
[  376.084333]  ? zap_class+0x640/0x640
[  376.088042]  ? zap_class+0x640/0x640
[  376.091756]  ? print_usage_bug+0xc0/0xc0
[  376.095858]  ? do_raw_spin_unlock+0xa7/0x330
[  376.100286]  ? zap_class+0x640/0x640
[  376.104014]  ? print_usage_bug+0xc0/0xc0
[  376.108071]  ? wq_watchdog_touch+0x9c/0xfe
[  376.112302]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.117849]  ? check_preemption_disabled+0x48/0x280
[  376.122879]  ? __lock_is_held+0xb5/0x140
[  376.126966]  __alloc_pages_nodemask+0xad8/0xea0
[  376.131674]  ? zap_class+0x640/0x640
[  376.135401]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  376.140451]  ? find_held_lock+0x36/0x1c0
[  376.144526]  ? ____cache_alloc_node+0x1c7/0x1e0
[  376.149218]  ? lock_downgrade+0x900/0x900
[  376.153379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.158928]  cache_grow_begin+0xa5/0x8c0
[  376.163019]  ? do_raw_spin_unlock+0xa7/0x330
[  376.167458]  fallback_alloc+0x204/0x2e0
[  376.171446]  ____cache_alloc_node+0x1c7/0x1e0
[  376.175940]  kmem_cache_alloc_node+0xe3/0x730
[  376.180427]  ? ipv6_get_ifaddr+0x42e/0x620
[  376.184699]  __alloc_skb+0x119/0x770
[  376.188416]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.193699]  ? netdev_alloc_frag+0x1f0/0x1f0
[  376.198094]  ? lock_downgrade+0x900/0x900
[  376.202276]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.207804]  ? refcount_sub_and_test_checked+0x203/0x310
[  376.213253]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  376.218697]  ? addrconf_rs_timer+0x690/0x690
[  376.223145]  ndisc_alloc_skb+0x144/0x340
[  376.227239]  ndisc_send_rs+0x331/0x6e0
[  376.231182]  addrconf_rs_timer+0x314/0x690
[  376.235450]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.239703]  call_timer_fn+0x272/0x920
[  376.243588]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.247816]  ? process_timeout+0x40/0x40
[  376.251880]  ? mark_held_locks+0xc7/0x130
[  376.256032]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.260521]  ? _raw_spin_unlock_irq+0x27/0x80
[  376.265009]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.269235]  ? lockdep_hardirqs_on+0x296/0x5b0
[  376.273870]  ? trace_hardirqs_on+0xbd/0x310
[  376.278218]  ? kasan_check_read+0x11/0x20
[  376.282357]  ? __run_timers+0x7da/0xc70
[  376.286328]  ? trace_hardirqs_off_caller+0x310/0x310
[  376.291461]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.295693]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  376.299921]  __run_timers+0x7e5/0xc70
[  376.303760]  ? timer_fixup_init+0x70/0x70
[  376.307919]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  376.312980]  ? zap_class+0x640/0x640
[  376.316711]  ? print_usage_bug+0xc0/0xc0
[  376.320781]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  376.325989]  ? find_held_lock+0x36/0x1c0
[  376.330049]  ? zap_class+0x640/0x640
[  376.333759]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.339291]  ? check_preemption_disabled+0x48/0x280
[  376.344334]  ? __lock_is_held+0xb5/0x140
[  376.348419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.353949]  ? check_preemption_disabled+0x48/0x280
[  376.358959]  run_timer_softirq+0x52/0xb0
[  376.363012]  ? rcu_read_lock_sched_held+0x14f/0x180
[  376.368030]  __do_softirq+0x308/0xb7e
[  376.371863]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  376.376358]  ? lock_downgrade+0x900/0x900
[  376.380507]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  376.385626]  ? pvclock_read_flags+0x160/0x160
[  376.390138]  ? lapic_next_event+0x5a/0x90
[  376.394284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.399835]  ? kvm_clock_read+0x18/0x30
[  376.403818]  ? kvm_sched_clock_read+0x9/0x20
[  376.408226]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.413760]  ? check_preemption_disabled+0x48/0x280
[  376.418789]  irq_exit+0x17f/0x1c0
[  376.422254]  smp_apic_timer_interrupt+0x1cb/0x760
[  376.427091]  ? smp_reschedule_interrupt+0x109/0x650
[  376.432111]  ? smp_call_function_single_interrupt+0x650/0x650
[  376.438000]  ? interrupt_entry+0xb5/0xc0
[  376.442063]  ? trace_hardirqs_off_caller+0xbb/0x310
[  376.447089]  ? trace_hardirqs_off_caller+0xbb/0x310
[  376.452128]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.456967]  ? trace_hardirqs_on_caller+0x310/0x310
[  376.461987]  ? trace_hardirqs_on_caller+0x310/0x310
[  376.467005]  ? task_prio+0x50/0x50
[  376.470555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.476108]  ? check_preemption_disabled+0x48/0x280
[  376.481142]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  376.485989]  apic_timer_interrupt+0xf/0x20
[  376.490213]  </IRQ>
[  376.492450] RIP: 0010:lock_acquire+0x268/0x520
[  376.497045] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  376.515941] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  376.523639] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  376.530906] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  376.538172] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  376.545433] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  376.552698] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  376.559991]  ? lruvec_lru_size+0x450/0x450
[  376.564230]  ? kasan_check_read+0x11/0x20
[  376.568384]  ? lock_release+0xa00/0xa00
[  376.572367]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  376.577310]  down_read_trylock+0xda/0x140
[  376.581457]  ? shrink_slab+0x207/0x8c0
[  376.585352]  ? downgrade_write+0x270/0x270
[  376.589597]  shrink_slab+0x207/0x8c0
[  376.593310]  ? shrink_active_list+0x1f00/0x1f00
[  376.597987]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  376.603621]  ? __lock_acquire+0x62f/0x4c20
[  376.607878]  ? percpu_ref_get_many+0x240/0x240
[  376.612480]  ? print_usage_bug+0xc0/0xc0
[  376.616553]  shrink_node+0x431/0x16b0
[  376.620357]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  376.625660]  ? shrink_node_memcg+0x18f0/0x18f0
[  376.630265]  ? kvm_clock_read+0x18/0x30
[  376.634241]  ? ktime_get+0x2c1/0x400
[  376.637964]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  376.642479]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  376.648020]  ? __cpuset_node_allowed+0x19b/0x660
[  376.652772]  ? mark_held_locks+0x130/0x130
[  376.657011]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  376.662738]  ? zap_class+0x640/0x640
[  376.666469]  do_try_to_free_pages+0x3e7/0x1290
[  376.671047]  ? zap_class+0x640/0x640
[  376.674778]  ? shrink_node+0x16b0/0x16b0
[  376.678841]  ? __lock_is_held+0xb5/0x140
[  376.682941]  try_to_free_pages+0x4d0/0xb90
[  376.687187]  ? do_try_to_free_pages+0x1290/0x1290
[  376.692042]  ? lock_acquire+0x1ed/0x520
[  376.696016]  ? set_page_refcounted+0x280/0x280
[  376.700617]  ? lock_release+0xa00/0xa00
[  376.704633]  ? _raw_spin_unlock_irq+0x60/0x80
[  376.709139]  ? psi_memstall_enter+0x240/0x2b0
[  376.713637]  ? psi_memstall_tick+0x230/0x230
[  376.718056]  __alloc_pages_slowpath+0xa48/0x2de0
[  376.722841]  ? warn_alloc+0x120/0x120
[  376.726639]  ? mark_held_locks+0x130/0x130
[  376.730884]  ? find_get_entry+0xaae/0x1120
[  376.735146]  ? filemap_map_pages+0x1a20/0x1a20
[  376.739735]  ? zap_class+0x640/0x640
[  376.743465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.749010]  ? check_preemption_disabled+0x48/0x280
[  376.754025]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.759562]  ? should_fail+0x22d/0xd01
[  376.763450]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  376.768552]  ? zap_class+0x640/0x640
[  376.772288]  ? __lock_is_held+0xb5/0x140
[  376.776354]  ? mark_held_locks+0x130/0x130
[  376.780588]  ? lock_release+0xa00/0xa00
[  376.784560]  ? perf_trace_sched_process_exec+0x860/0x860
[  376.790007]  ? xa_load+0x2ba/0x460
[  376.793546]  ? lock_downgrade+0x900/0x900
[  376.797698]  ? __might_sleep+0x95/0x190
[  376.801733]  __alloc_pages_nodemask+0xad8/0xea0
[  376.806412]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  376.811430]  ? __page_cache_alloc+0x191/0x5c0
[  376.815922]  ? xa_load+0x2e1/0x460
[  376.819493]  ? xa_clear_mark+0x40/0x40
[  376.823381]  ? zap_class+0x640/0x640
[  376.827102]  ? zap_class+0x640/0x640
[  376.830820]  ? zap_class+0x640/0x640
[  376.834533]  ? __do_page_cache_readahead+0x663/0x810
[  376.839640]  ? find_held_lock+0x36/0x1c0
[  376.843729]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  376.849273]  alloc_pages_current+0x173/0x350
[  376.853684]  __page_cache_alloc+0x38c/0x5c0
[  376.858002]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.862924]  ? kasan_check_read+0x11/0x20
[  376.867067]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.872366]  ? generic_perform_write+0x6a0/0x6a0
[  376.877130]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  376.882665]  ? check_preemption_disabled+0x48/0x280
[  376.887701]  filemap_fault+0x1595/0x25f0
[  376.891770]  ? __lock_page_or_retry+0xa00/0xa00
[  376.896439]  ? mark_held_locks+0x130/0x130
[  376.900678]  ? filemap_map_pages+0xd6b/0x1a20
[  376.905174]  ? lock_downgrade+0x900/0x900
[  376.909324]  ? check_preemption_disabled+0x48/0x280
[  376.914344]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  376.919275]  ? kasan_check_read+0x11/0x20
[  376.923441]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  376.928720]  ? rcu_softirq_qs+0x20/0x20
[  376.932703]  ? filemap_map_pages+0xd92/0x1a20
[  376.937230]  ? find_get_entries_tag+0x1400/0x1400
[  376.942073]  ? debug_object_destroy+0x2b0/0x2b0
[  376.946755]  ? lock_pi_update_atomic+0x150/0x150
[  376.951637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  376.957186]  ? lock_acquire+0x1ed/0x520
[  376.961162]  ? ext4_filemap_fault+0x7a/0xad
[  376.965494]  ? lock_release+0xa00/0xa00
[  376.969480]  ? perf_trace_sched_process_exec+0x860/0x860
[  376.974927]  ? print_usage_bug+0xc0/0xc0
[  376.979003]  ? print_usage_bug+0xc0/0xc0
[  376.983073]  ? down_read+0x8d/0x120
[  376.986699]  ? ext4_filemap_fault+0x7a/0xad
[  376.991071]  ? __down_interruptible+0x700/0x700
[  376.995770]  ext4_filemap_fault+0x82/0xad
[  376.999923]  __do_fault+0x100/0x6b0
[  377.003546]  ? find_held_lock+0x36/0x1c0
[  377.007605]  ? pmd_devmap_trans_unstable+0x220/0x220
[  377.012705]  ? mark_held_locks+0x130/0x130
[  377.016934]  ? mark_held_locks+0x130/0x130
[  377.021185]  ? kasan_check_read+0x11/0x20
[  377.025332]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.030866]  __handle_mm_fault+0x3ea0/0x5be0
[  377.035275]  ? perf_trace_lock+0x7a0/0x7a0
[  377.039518]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  377.044372]  ? __switch_to_asm+0x34/0x70
[  377.048445]  ? __switch_to_asm+0x34/0x70
[  377.052536]  ? zap_class+0x640/0x640
[  377.056247]  ? zap_class+0x640/0x640
[  377.059953]  ? __x64_sys_futex+0x53e/0x6a0
[  377.064223]  ? find_held_lock+0x36/0x1c0
[  377.068291]  ? handle_mm_fault+0x42a/0xc70
[  377.072520]  ? lock_downgrade+0x900/0x900
[  377.076663]  ? check_preemption_disabled+0x48/0x280
[  377.082143]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  377.087072]  ? kasan_check_read+0x11/0x20
[  377.091235]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.096561]  ? rcu_softirq_qs+0x20/0x20
[  377.100536]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.105658]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.111198]  ? sync_mm_rss+0x9a/0x1c0
[  377.115006]  handle_mm_fault+0x54f/0xc70
[  377.119069]  ? __handle_mm_fault+0x5be0/0x5be0
[  377.123657]  ? find_vma+0x34/0x190
[  377.127208]  __do_page_fault+0x5e8/0xe60
[  377.131271]  ? trace_hardirqs_off+0xb8/0x310
[  377.135689]  do_page_fault+0xf2/0x7e0
[  377.139492]  ? vmalloc_sync_all+0x30/0x30
[  377.143654]  ? error_entry+0x70/0xd0
[  377.147370]  ? trace_hardirqs_off_caller+0xbb/0x310
[  377.152391]  ? trace_hardirqs_on_caller+0xc0/0x310
[  377.157338]  ? syscall_return_slowpath+0x5e0/0x5e0
[  377.162284]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.167135]  ? trace_hardirqs_on_caller+0x310/0x310
[  377.172158]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  377.177618]  ? prepare_exit_to_usermode+0x291/0x3b0
[  377.182647]  ? page_fault+0x8/0x30
[  377.186197]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  377.191047]  ? page_fault+0x8/0x30
[  377.194590]  page_fault+0x1e/0x30
[  377.198040] RIP: 0033:0x45ddf3
[  377.201244] Code: Bad RIP value.
[  377.204625] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  377.209986] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  377.217250] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  377.224518] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  377.231784] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  377.239051] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  377.246345] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  377.246351] warn_alloc_show_mem: 1 callbacks suppressed
[  377.246358] Mem-Info:
[  377.253636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  377.259004] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  377.259004]  active_file:17 inactive_file:17 isolated_file:0
[  377.259004]  unevictable:0 dirty:4 writeback:0 unstable:0
[  377.259004]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  377.259004]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  377.259004]  free:13550 free_pcp:124 free_cma:0
[  377.261412] Call Trace:
[  377.270822] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  377.303923]  <IRQ>
[  377.306485] 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
[  377.334253]  dump_stack+0x244/0x39d
[  377.336376] lowmem_reserve[]: 0 2818 6321 6321
[  377.362511]  ? dump_stack_print_info.cold.1+0x20/0x20
[  377.366106] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  377.370695]  warn_alloc.cold.116+0xb7/0x1bd
[  377.375848] lowmem_reserve[]: 0 0 3503 3503
[  377.403164]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  377.407464] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  377.411772]  ? lock_downgrade+0x900/0x900
[  377.416581] lowmem_reserve[]: 0 0 0 0
[  377.445489]  ? trace_hardirqs_off+0xb8/0x310
[  377.449624] 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
[  377.453418]  ? trace_hardirqs_off+0xb8/0x310
[  377.457794] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  377.471322]  __alloc_pages_slowpath+0x2651/0x2de0
[  377.475700] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  377.490479]  ? warn_alloc+0x120/0x120
[  377.495278] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  377.509998]  ? print_usage_bug+0xc0/0xc0
[  377.513773] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  377.522643]  ? warn_alloc+0x120/0x120
[  377.526709] 1360 total pagecache pages
[  377.535268]  ? warn_alloc+0x120/0x120
[  377.539049] 0 pages in swap cache
[  377.542954]  ? print_usage_bug+0xc0/0xc0
[  377.546746] Swap cache stats: add 0, delete 0, find 0/0
[  377.550183]  ? kvm_clock_read+0x18/0x30
[  377.554216] Free swap  = 0kB
[  377.559564]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  377.563515] Total swap = 0kB
[  377.566527]  ? print_usage_bug+0xc0/0xc0
[  377.571522] 1965979 pages RAM
[  377.574577]  ? __lock_acquire+0x62f/0x4c20
[  377.578616] 0 pages HighMem/MovableOnly
[  377.581728]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  377.585947] 342854 pages reserved
[  377.589914]  ? should_fail+0x22d/0xd01
[  377.595420] 0 pages cma reserved
[  377.598858]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.602803] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  377.606079]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  377.611421] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  377.617817]  ? __lock_acquire+0x62f/0x4c20
[  377.622914] syz-fuzzer cpuset=/ mems_allowed=0
[  377.633137]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  377.647004]  ? __lock_acquire+0x62f/0x4c20
[  377.651234]  ? should_fail+0x22d/0xd01
[  377.655136]  ? rcu_irq_exit+0x1a2/0x390
[  377.659127]  ? mark_held_locks+0x130/0x130
[  377.663369]  ? mark_held_locks+0x130/0x130
[  377.667614]  ? mark_held_locks+0xc7/0x130
[  377.671764]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  377.676796]  ? zap_class+0x640/0x640
[  377.680541]  ? print_usage_bug+0xc0/0xc0
[  377.684620]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.690160]  ? check_preemption_disabled+0x48/0x280
[  377.695187]  ? __lock_is_held+0xb5/0x140
[  377.699251]  __alloc_pages_nodemask+0xad8/0xea0
[  377.703928]  ? zap_class+0x640/0x640
[  377.707679]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  377.712750]  ? find_held_lock+0x36/0x1c0
[  377.716820]  ? ____cache_alloc_node+0x1c7/0x1e0
[  377.721493]  ? lock_downgrade+0x900/0x900
[  377.725646]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.731203]  cache_grow_begin+0xa5/0x8c0
[  377.735263]  ? do_raw_spin_unlock+0xa7/0x330
[  377.739677]  fallback_alloc+0x204/0x2e0
[  377.743664]  ____cache_alloc_node+0x1c7/0x1e0
[  377.748175]  kmem_cache_alloc_node+0xe3/0x730
[  377.752686]  ? ipv6_get_ifaddr+0x42e/0x620
[  377.756928]  __alloc_skb+0x119/0x770
[  377.760638]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.765941]  ? netdev_alloc_frag+0x1f0/0x1f0
[  377.770357]  ? lock_downgrade+0x900/0x900
[  377.774545]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.780115]  ? refcount_sub_and_test_checked+0x203/0x310
[  377.785576]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  377.791029]  ? addrconf_rs_timer+0x690/0x690
[  377.795464]  ndisc_alloc_skb+0x144/0x340
[  377.799527]  ndisc_send_rs+0x331/0x6e0
[  377.803430]  addrconf_rs_timer+0x314/0x690
[  377.807684]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.811922]  call_timer_fn+0x272/0x920
[  377.815807]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.820035]  ? process_timeout+0x40/0x40
[  377.824099]  ? __run_timers+0x7da/0xc70
[  377.828075]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.832570]  ? _raw_spin_unlock_irq+0x27/0x80
[  377.837064]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.841313]  ? lockdep_hardirqs_on+0x296/0x5b0
[  377.845924]  ? trace_hardirqs_on+0xbd/0x310
[  377.850261]  ? kasan_check_read+0x11/0x20
[  377.854408]  ? __run_timers+0x7da/0xc70
[  377.858407]  ? trace_hardirqs_off_caller+0x310/0x310
[  377.863528]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.867765]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  377.871993]  __run_timers+0x7e5/0xc70
[  377.875801]  ? timer_fixup_init+0x70/0x70
[  377.879946]  ? kasan_check_read+0x11/0x20
[  377.884111]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  377.889418]  ? rcu_softirq_qs+0x20/0x20
[  377.893443]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.898981]  ? check_preemption_disabled+0x48/0x280
[  377.904005]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  377.908767]  ? retint_kernel+0x2d/0x2d
[  377.912687]  ? trace_hardirqs_on_caller+0xc0/0x310
[  377.917615]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  377.922371]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  377.927836]  ? zap_class+0x640/0x640
[  377.931568]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.937105]  ? check_preemption_disabled+0x48/0x280
[  377.942187]  ? __lock_is_held+0xb5/0x140
[  377.946281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.951831]  ? check_preemption_disabled+0x48/0x280
[  377.956849]  run_timer_softirq+0x52/0xb0
[  377.960917]  ? rcu_read_lock_sched_held+0x14f/0x180
[  377.965934]  __do_softirq+0x308/0xb7e
[  377.969735]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  377.974234]  ? lock_downgrade+0x900/0x900
[  377.978384]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  377.983507]  ? pvclock_read_flags+0x160/0x160
[  377.988002]  ? lapic_next_event+0x5a/0x90
[  377.992190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  377.997754]  ? kvm_clock_read+0x18/0x30
[  378.001731]  ? kvm_sched_clock_read+0x9/0x20
[  378.006146]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.011683]  ? check_preemption_disabled+0x48/0x280
[  378.016713]  irq_exit+0x17f/0x1c0
[  378.020164]  smp_apic_timer_interrupt+0x1cb/0x760
[  378.025002]  ? smp_reschedule_interrupt+0x109/0x650
[  378.030014]  ? smp_call_function_single_interrupt+0x650/0x650
[  378.035907]  ? interrupt_entry+0xb5/0xc0
[  378.039968]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.044978]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.049992]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.054847]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.059871]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.064906]  ? task_prio+0x50/0x50
[  378.068455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.074015]  ? check_preemption_disabled+0x48/0x280
[  378.079030]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.083889]  apic_timer_interrupt+0xf/0x20
[  378.088238]  </IRQ>
[  378.090501] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  378.095457] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  378.114368] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  378.122107] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  378.129396] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  378.136687] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  378.143952] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  378.151216] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  378.158515]  skb_clone+0x1bb/0x500
[  378.162057]  ? skb_split+0x11e0/0x11e0
[  378.165944]  ? preempt_notifier_register+0x200/0x200
[  378.171042]  ? __switch_to_asm+0x34/0x70
[  378.175097]  ? __switch_to_asm+0x34/0x70
[  378.179162]  ? __switch_to_asm+0x40/0x70
[  378.183217]  ? __switch_to_asm+0x34/0x70
[  378.187276]  ? __switch_to_asm+0x40/0x70
[  378.191333]  ? __switch_to_asm+0x40/0x70
[  378.195394]  ? __switch_to_asm+0x34/0x70
[  378.199453]  ? __switch_to_asm+0x34/0x70
[  378.203509]  ? __switch_to_asm+0x40/0x70
[  378.207583]  ? __switch_to_asm+0x34/0x70
[  378.211665]  bpf_clone_redirect+0xb9/0x490
[  378.215911]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  378.220928]  ? __sched_text_start+0x8/0x8
[  378.225087]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  378.229855]  ? find_held_lock+0x36/0x1c0
[  378.233933]  ? lock_acquire+0x1ed/0x520
[  378.237922]  ? bpf_test_run+0x3ee/0x7a0
[  378.241892]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.247427]  ? check_preemption_disabled+0x48/0x280
[  378.252471]  ? kasan_check_read+0x11/0x20
[  378.256649]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.261917]  ? rcu_softirq_qs+0x20/0x20
[  378.265890]  ? preempt_schedule+0x4d/0x60
[  378.270031]  ? ___preempt_schedule+0x16/0x18
[  378.274451]  ? bpf_test_run+0x271/0x7a0
[  378.278476]  ? netlink_diag_dump+0x2a0/0x2a0
[  378.282883]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.288430]  ? bpf_test_init.isra.10+0x70/0x100
[  378.293095]  ? bpf_prog_test_run_skb+0x762/0xd60
[  378.297855]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  378.302727]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  378.308255]  ? fput+0x130/0x1a0
[  378.311533]  ? __bpf_prog_get+0x9b/0x290
[  378.315648]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  378.320485]  ? bpf_prog_test_run+0x130/0x1a0
[  378.324918]  ? __x64_sys_bpf+0x3d8/0x520
[  378.329007]  ? bpf_prog_get+0x20/0x20
[  378.332847]  ? do_syscall_64+0x1b9/0x820
[  378.336918]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  378.342294]  ? syscall_return_slowpath+0x5e0/0x5e0
[  378.347262]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.352101]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.357127]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  378.362152]  ? prepare_exit_to_usermode+0x291/0x3b0
[  378.367197]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.372080]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  378.377479] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  378.377572] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  378.384409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  378.384414] Call Trace:
[  378.384419]  <IRQ>
[  378.384434]  dump_stack+0x244/0x39d
[  378.384454]  ? dump_stack_print_info.cold.1+0x20/0x20
[  378.391565] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  378.400276]  warn_alloc.cold.116+0xb7/0x1bd
[  378.402858] syz-executor4 cpuset=syz4 mems_allowed=0
[  378.405018]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  378.438514]  ? lock_downgrade+0x900/0x900
[  378.442670]  ? trace_hardirqs_off+0xb8/0x310
[  378.447099]  ? trace_hardirqs_off+0xb8/0x310
[  378.451535]  __alloc_pages_slowpath+0x2651/0x2de0
[  378.456410]  ? warn_alloc+0x120/0x120
[  378.460213]  ? print_usage_bug+0xc0/0xc0
[  378.464276]  ? warn_alloc+0x120/0x120
[  378.468087]  ? warn_alloc+0x120/0x120
[  378.471903]  ? print_usage_bug+0xc0/0xc0
[  378.476073]  ? kvm_clock_read+0x18/0x30
[  378.480050]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  378.485069]  ? print_usage_bug+0xc0/0xc0
[  378.489138]  ? __lock_acquire+0x62f/0x4c20
[  378.493409]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.498978]  ? should_fail+0x22d/0xd01
[  378.502862]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.508151]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.513261]  ? __lock_acquire+0x62f/0x4c20
[  378.517527]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  378.522645]  ? __lock_acquire+0x62f/0x4c20
[  378.526871]  ? should_fail+0x22d/0xd01
[  378.530772]  ? rcu_irq_exit+0x1a2/0x390
[  378.534751]  ? mark_held_locks+0x130/0x130
[  378.539003]  ? mark_held_locks+0x130/0x130
[  378.543272]  ? mark_held_locks+0xc7/0x130
[  378.547414]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  378.552428]  ? zap_class+0x640/0x640
[  378.556139]  ? print_usage_bug+0xc0/0xc0
[  378.560203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.565734]  ? check_preemption_disabled+0x48/0x280
[  378.570755]  ? __lock_is_held+0xb5/0x140
[  378.574817]  __alloc_pages_nodemask+0xad8/0xea0
[  378.579505]  ? zap_class+0x640/0x640
[  378.583218]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  378.588244]  ? find_held_lock+0x36/0x1c0
[  378.592306]  ? ____cache_alloc_node+0x1c7/0x1e0
[  378.596970]  ? lock_downgrade+0x900/0x900
[  378.601144]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.606698]  cache_grow_begin+0xa5/0x8c0
[  378.610756]  ? do_raw_spin_unlock+0xa7/0x330
[  378.615173]  fallback_alloc+0x204/0x2e0
[  378.619161]  ____cache_alloc_node+0x1c7/0x1e0
[  378.623668]  kmem_cache_alloc_node+0xe3/0x730
[  378.628164]  ? ipv6_get_ifaddr+0x42e/0x620
[  378.632401]  __alloc_skb+0x119/0x770
[  378.636107]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  378.641389]  ? netdev_alloc_frag+0x1f0/0x1f0
[  378.645798]  ? lock_downgrade+0x900/0x900
[  378.649953]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.655500]  ? refcount_sub_and_test_checked+0x203/0x310
[  378.660967]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  378.666448]  ? addrconf_rs_timer+0x690/0x690
[  378.670881]  ndisc_alloc_skb+0x144/0x340
[  378.674951]  ndisc_send_rs+0x331/0x6e0
[  378.678855]  addrconf_rs_timer+0x314/0x690
[  378.683096]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.687347]  call_timer_fn+0x272/0x920
[  378.691247]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.695481]  ? process_timeout+0x40/0x40
[  378.699551]  ? mark_held_locks+0xc7/0x130
[  378.703715]  ? _raw_spin_unlock_irq+0x27/0x80
[  378.708224]  ? _raw_spin_unlock_irq+0x27/0x80
[  378.712714]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.716945]  ? lockdep_hardirqs_on+0x296/0x5b0
[  378.721528]  ? trace_hardirqs_on+0xbd/0x310
[  378.725848]  ? kasan_check_read+0x11/0x20
[  378.730011]  ? __run_timers+0x7da/0xc70
[  378.733995]  ? trace_hardirqs_off_caller+0x310/0x310
[  378.739094]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.743365]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  378.747594]  __run_timers+0x7e5/0xc70
[  378.751403]  ? timer_fixup_init+0x70/0x70
[  378.755550]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  378.760565]  ? zap_class+0x640/0x640
[  378.764282]  ? print_usage_bug+0xc0/0xc0
[  378.768391]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  378.773583]  ? find_held_lock+0x36/0x1c0
[  378.777679]  ? zap_class+0x640/0x640
[  378.781422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.786967]  ? check_preemption_disabled+0x48/0x280
[  378.791987]  ? __lock_is_held+0xb5/0x140
[  378.796048]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.801601]  ? check_preemption_disabled+0x48/0x280
[  378.806626]  run_timer_softirq+0x52/0xb0
[  378.810702]  ? rcu_read_lock_sched_held+0x14f/0x180
[  378.815717]  __do_softirq+0x308/0xb7e
[  378.819519]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  378.824022]  ? lock_downgrade+0x900/0x900
[  378.828171]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  378.833280]  ? pvclock_read_flags+0x160/0x160
[  378.837773]  ? lapic_next_event+0x5a/0x90
[  378.841940]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.847529]  ? kvm_clock_read+0x18/0x30
[  378.851533]  ? kvm_sched_clock_read+0x9/0x20
[  378.855941]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  378.861475]  ? check_preemption_disabled+0x48/0x280
[  378.866515]  irq_exit+0x17f/0x1c0
[  378.869968]  smp_apic_timer_interrupt+0x1cb/0x760
[  378.874814]  ? smp_reschedule_interrupt+0x109/0x650
[  378.879866]  ? smp_call_function_single_interrupt+0x650/0x650
[  378.885776]  ? interrupt_entry+0xb5/0xc0
[  378.889847]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.894862]  ? trace_hardirqs_off_caller+0xbb/0x310
[  378.899877]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.904721]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.909737]  ? trace_hardirqs_on_caller+0x310/0x310
[  378.914751]  ? task_prio+0x50/0x50
[  378.918293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  378.923830]  ? check_preemption_disabled+0x48/0x280
[  378.928854]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  378.933706]  apic_timer_interrupt+0xf/0x20
[  378.937934]  </IRQ>
[  378.940174] RIP: 0010:lock_acquire+0x268/0x520
[  378.944756] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  378.963789] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  378.971492] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  378.978760] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  378.986028] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  378.993294] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  379.000564] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  379.007861]  ? lruvec_lru_size+0x450/0x450
[  379.012100]  ? kasan_check_read+0x11/0x20
[  379.016263]  ? lock_release+0xa00/0xa00
[  379.020244]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  379.025182]  down_read_trylock+0xda/0x140
[  379.029345]  ? shrink_slab+0x207/0x8c0
[  379.033233]  ? downgrade_write+0x270/0x270
[  379.037478]  shrink_slab+0x207/0x8c0
[  379.041206]  ? shrink_active_list+0x1f00/0x1f00
[  379.045887]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  379.051520]  ? __lock_acquire+0x62f/0x4c20
[  379.055758]  ? percpu_ref_get_many+0x240/0x240
[  379.060364]  ? print_usage_bug+0xc0/0xc0
[  379.064437]  shrink_node+0x431/0x16b0
[  379.068242]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  379.073581]  ? shrink_node_memcg+0x18f0/0x18f0
[  379.078168]  ? kvm_clock_read+0x18/0x30
[  379.082681]  ? ktime_get+0x2c1/0x400
[  379.086402]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  379.090907]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  379.096445]  ? __cpuset_node_allowed+0x19b/0x660
[  379.101214]  ? mark_held_locks+0x130/0x130
[  379.105449]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  379.111183]  ? zap_class+0x640/0x640
[  379.114947]  do_try_to_free_pages+0x3e7/0x1290
[  379.119527]  ? zap_class+0x640/0x640
[  379.123260]  ? shrink_node+0x16b0/0x16b0
[  379.127326]  ? __lock_is_held+0xb5/0x140
[  379.131400]  try_to_free_pages+0x4d0/0xb90
[  379.135652]  ? do_try_to_free_pages+0x1290/0x1290
[  379.140506]  ? lock_acquire+0x1ed/0x520
[  379.144487]  ? set_page_refcounted+0x280/0x280
[  379.149076]  ? lock_release+0xa00/0xa00
[  379.153051]  ? _raw_spin_unlock_irq+0x60/0x80
[  379.157545]  ? psi_memstall_enter+0x240/0x2b0
[  379.162052]  ? psi_memstall_tick+0x230/0x230
[  379.166470]  __alloc_pages_slowpath+0xa48/0x2de0
[  379.171269]  ? warn_alloc+0x120/0x120
[  379.175068]  ? mark_held_locks+0x130/0x130
[  379.179314]  ? find_get_entry+0xaae/0x1120
[  379.183562]  ? filemap_map_pages+0x1a20/0x1a20
[  379.188163]  ? zap_class+0x640/0x640
[  379.191886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.197432]  ? check_preemption_disabled+0x48/0x280
[  379.202450]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.207988]  ? should_fail+0x22d/0xd01
[  379.211880]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  379.216991]  ? zap_class+0x640/0x640
[  379.220726]  ? __lock_is_held+0xb5/0x140
[  379.224787]  ? mark_held_locks+0x130/0x130
[  379.229018]  ? lock_release+0xa00/0xa00
[  379.232984]  ? perf_trace_sched_process_exec+0x860/0x860
[  379.238425]  ? xa_load+0x2ba/0x460
[  379.241974]  ? lock_downgrade+0x900/0x900
[  379.246145]  ? __might_sleep+0x95/0x190
[  379.250129]  __alloc_pages_nodemask+0xad8/0xea0
[  379.254800]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  379.259814]  ? __page_cache_alloc+0x191/0x5c0
[  379.264322]  ? xa_load+0x2e1/0x460
[  379.267877]  ? xa_clear_mark+0x40/0x40
[  379.271807]  ? zap_class+0x640/0x640
[  379.275571]  ? zap_class+0x640/0x640
[  379.279304]  ? zap_class+0x640/0x640
[  379.283014]  ? __do_page_cache_readahead+0x663/0x810
[  379.288141]  ? find_held_lock+0x36/0x1c0
[  379.292207]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  379.297750]  alloc_pages_current+0x173/0x350
[  379.302173]  __page_cache_alloc+0x38c/0x5c0
[  379.306488]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  379.311412]  ? kasan_check_read+0x11/0x20
[  379.315557]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.320831]  ? generic_perform_write+0x6a0/0x6a0
[  379.325580]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.331147]  ? check_preemption_disabled+0x48/0x280
[  379.336161]  filemap_fault+0x1595/0x25f0
[  379.340226]  ? __lock_page_or_retry+0xa00/0xa00
[  379.344897]  ? mark_held_locks+0x130/0x130
[  379.349149]  ? filemap_map_pages+0xd6b/0x1a20
[  379.353659]  ? lock_downgrade+0x900/0x900
[  379.357805]  ? check_preemption_disabled+0x48/0x280
[  379.362822]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  379.367799]  ? kasan_check_read+0x11/0x20
[  379.371937]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.377209]  ? rcu_softirq_qs+0x20/0x20
[  379.381212]  ? filemap_map_pages+0xd92/0x1a20
[  379.385719]  ? find_get_entries_tag+0x1400/0x1400
[  379.390570]  ? debug_object_destroy+0x2b0/0x2b0
[  379.395283]  ? lock_pi_update_atomic+0x150/0x150
[  379.400045]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.405627]  ? lock_acquire+0x1ed/0x520
[  379.409663]  ? ext4_filemap_fault+0x7a/0xad
[  379.413999]  ? lock_release+0xa00/0xa00
[  379.417967]  ? perf_trace_sched_process_exec+0x860/0x860
[  379.423413]  ? print_usage_bug+0xc0/0xc0
[  379.427473]  ? print_usage_bug+0xc0/0xc0
[  379.431537]  ? down_read+0x8d/0x120
[  379.435160]  ? ext4_filemap_fault+0x7a/0xad
[  379.439481]  ? __down_interruptible+0x700/0x700
[  379.444198]  ext4_filemap_fault+0x82/0xad
[  379.448349]  __do_fault+0x100/0x6b0
[  379.451970]  ? find_held_lock+0x36/0x1c0
[  379.456042]  ? pmd_devmap_trans_unstable+0x220/0x220
[  379.461188]  ? mark_held_locks+0x130/0x130
[  379.465444]  ? mark_held_locks+0x130/0x130
[  379.469702]  ? kasan_check_read+0x11/0x20
[  379.473846]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  379.479384]  __handle_mm_fault+0x3ea0/0x5be0
[  379.483794]  ? perf_trace_lock+0x7a0/0x7a0
[  379.488039]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  379.492885]  ? __switch_to_asm+0x34/0x70
[  379.496948]  ? __switch_to_asm+0x34/0x70
[  379.501033]  ? zap_class+0x640/0x640
[  379.504742]  ? zap_class+0x640/0x640
[  379.508465]  ? __x64_sys_futex+0x53e/0x6a0
[  379.512700]  ? find_held_lock+0x36/0x1c0
[  379.516789]  ? handle_mm_fault+0x42a/0xc70
[  379.521025]  ? lock_downgrade+0x900/0x900
[  379.525173]  ? check_preemption_disabled+0x48/0x280
[  379.530194]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  379.535132]  ? kasan_check_read+0x11/0x20
[  379.539285]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  379.544565]  ? rcu_softirq_qs+0x20/0x20
[  379.548540]  ? trace_hardirqs_off_caller+0x310/0x310
[  379.553647]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  379.559185]  ? sync_mm_rss+0x9a/0x1c0
[  379.562993]  handle_mm_fault+0x54f/0xc70
[  379.567056]  ? __handle_mm_fault+0x5be0/0x5be0
[  379.571643]  ? find_vma+0x34/0x190
[  379.575193]  __do_page_fault+0x5e8/0xe60
[  379.579253]  ? trace_hardirqs_off+0xb8/0x310
[  379.583694]  do_page_fault+0xf2/0x7e0
[  379.587497]  ? vmalloc_sync_all+0x30/0x30
[  379.591647]  ? error_entry+0x70/0xd0
[  379.595361]  ? trace_hardirqs_off_caller+0xbb/0x310
[  379.600373]  ? trace_hardirqs_on_caller+0xc0/0x310
[  379.605336]  ? syscall_return_slowpath+0x5e0/0x5e0
[  379.610269]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.615134]  ? trace_hardirqs_on_caller+0x310/0x310
[  379.620200]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  379.625658]  ? prepare_exit_to_usermode+0x291/0x3b0
[  379.630691]  ? page_fault+0x8/0x30
[  379.634259]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  379.639103]  ? page_fault+0x8/0x30
[  379.642652]  page_fault+0x1e/0x30
[  379.646103] RIP: 0033:0x45ddf3
[  379.649320] Code: Bad RIP value.
[  379.652679] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  379.658048] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  379.665315] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  379.672582] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  379.679847] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  379.687115] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  379.694417] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  379.694422] warn_alloc_show_mem: 1 callbacks suppressed
[  379.694429] Mem-Info:
[  379.701707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  379.707073] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  379.707073]  active_file:17 inactive_file:17 isolated_file:0
[  379.707073]  unevictable:0 dirty:4 writeback:0 unstable:0
[  379.707073]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  379.707073]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  379.707073]  free:13550 free_pcp:124 free_cma:0
[  379.709444] Call Trace:
[  379.718847] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  379.751860]  <IRQ>
[  379.754428] 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
[  379.782177]  dump_stack+0x244/0x39d
[  379.784299] lowmem_reserve[]: 0 2818 6321 6321
[  379.810405]  ? dump_stack_print_info.cold.1+0x20/0x20
[  379.813995] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  379.818575]  warn_alloc.cold.116+0xb7/0x1bd
[  379.823747] lowmem_reserve[]: 0 0 3503 3503
[  379.851065]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  379.855363] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  379.859677]  ? lock_downgrade+0x900/0x900
[  379.864493] lowmem_reserve[]: 0 0 0 0
[  379.893386]  ? trace_hardirqs_off+0xb8/0x310
[  379.897515] 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
[  379.901311]  ? trace_hardirqs_off+0xb8/0x310
[  379.905696] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  379.919223]  __alloc_pages_slowpath+0x2651/0x2de0
[  379.923603] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  379.938359]  ? warn_alloc+0x120/0x120
[  379.943162] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  379.957886]  ? warn_alloc+0x120/0x120
[  379.961679] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  379.970503]  ? warn_alloc+0x120/0x120
[  379.974278] 1360 total pagecache pages
[  379.982846]  ? __bpf_trace_xdp_cpumap_enqueue+0x40/0x40
[  379.986631] 0 pages in swap cache
[  379.990521]  ? print_usage_bug+0xc0/0xc0
[  379.995863] Swap cache stats: add 0, delete 0, find 0/0
[  379.999305]  ? is_bpf_text_address+0xac/0x170
[  380.003340] Free swap  = 0kB
[  380.008691]  ? print_usage_bug+0xc0/0xc0
[  380.013164] Total swap = 0kB
[  380.016173]  ? kasan_check_read+0x11/0x20
[  380.020201] 1965979 pages RAM
[  380.023211]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.027331] 0 pages HighMem/MovableOnly
[  380.030427]  ? should_fail+0x22d/0xd01
[  380.035933] 342854 pages reserved
[  380.039908]  ? rcu_softirq_qs+0x20/0x20
[  380.043794] 0 pages cma reserved
[  380.047252]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.051284] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  380.054550]  ? __lock_acquire+0x62f/0x4c20
[  380.059707] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  380.066132]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.070342] syz-fuzzer cpuset=/ mems_allowed=0
[  380.080555]  ? __lock_acquire+0x62f/0x4c20
[  380.094423]  ? should_fail+0x22d/0xd01
[  380.098320]  ? mark_held_locks+0x130/0x130
[  380.102557]  ? mark_held_locks+0x130/0x130
[  380.106815]  ? try_to_wake_up+0x11c/0x1490
[  380.111048]  ? lock_downgrade+0x900/0x900
[  380.115212]  ? save_stack_trace+0x1a/0x20
[  380.119363]  ? zap_class+0x640/0x640
[  380.123080]  ? print_usage_bug+0xc0/0xc0
[  380.127142]  ? trace_hardirqs_off+0xb8/0x310
[  380.131561]  ? kasan_check_read+0x11/0x20
[  380.135707]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.141256]  ? check_preemption_disabled+0x48/0x280
[  380.146275]  ? __lock_is_held+0xb5/0x140
[  380.150337]  __alloc_pages_nodemask+0xad8/0xea0
[  380.155001]  ? zap_class+0x640/0x640
[  380.158730]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  380.163751]  ? find_held_lock+0x36/0x1c0
[  380.167832]  ? ____cache_alloc_node+0x1c7/0x1e0
[  380.172500]  ? lock_downgrade+0x900/0x900
[  380.176652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.182193]  cache_grow_begin+0xa5/0x8c0
[  380.186265]  ? do_raw_spin_unlock+0xa7/0x330
[  380.190724]  fallback_alloc+0x204/0x2e0
[  380.194727]  ____cache_alloc_node+0x1c7/0x1e0
[  380.199244]  kmem_cache_alloc_node+0xe3/0x730
[  380.203739]  ? ipv6_get_ifaddr+0x42e/0x620
[  380.208012]  __alloc_skb+0x119/0x770
[  380.211752]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.217059]  ? netdev_alloc_frag+0x1f0/0x1f0
[  380.221465]  ? lock_downgrade+0x900/0x900
[  380.225612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.231149]  ? refcount_sub_and_test_checked+0x203/0x310
[  380.236598]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  380.242047]  ? addrconf_rs_timer+0x690/0x690
[  380.246464]  ndisc_alloc_skb+0x144/0x340
[  380.250530]  ndisc_send_rs+0x331/0x6e0
[  380.254425]  addrconf_rs_timer+0x314/0x690
[  380.258696]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.262984]  call_timer_fn+0x272/0x920
[  380.266870]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.271106]  ? process_timeout+0x40/0x40
[  380.275210]  ? __run_timers+0x7da/0xc70
[  380.279214]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.283722]  ? _raw_spin_unlock_irq+0x27/0x80
[  380.288210]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.292446]  ? lockdep_hardirqs_on+0x296/0x5b0
[  380.297027]  ? trace_hardirqs_on+0xbd/0x310
[  380.301346]  ? kasan_check_read+0x11/0x20
[  380.305489]  ? __run_timers+0x7da/0xc70
[  380.309465]  ? trace_hardirqs_off_caller+0x310/0x310
[  380.314574]  ? __queue_work+0x1440/0x1440
[  380.318726]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  380.322963]  __run_timers+0x7e5/0xc70
[  380.326773]  ? timer_fixup_init+0x70/0x70
[  380.330947]  ? kasan_check_read+0x11/0x20
[  380.335093]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.340374]  ? rcu_softirq_qs+0x20/0x20
[  380.344352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.349916]  ? check_preemption_disabled+0x48/0x280
[  380.354939]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  380.359694]  ? retint_kernel+0x2d/0x2d
[  380.363583]  ? trace_hardirqs_on_caller+0xc0/0x310
[  380.368532]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  380.373295]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  380.378746]  ? zap_class+0x640/0x640
[  380.382467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.388008]  ? check_preemption_disabled+0x48/0x280
[  380.393030]  ? __lock_is_held+0xb5/0x140
[  380.397091]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.402639]  ? check_preemption_disabled+0x48/0x280
[  380.407668]  run_timer_softirq+0x52/0xb0
[  380.411729]  ? rcu_read_lock_sched_held+0x14f/0x180
[  380.416752]  __do_softirq+0x308/0xb7e
[  380.420562]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  380.425068]  ? lock_downgrade+0x900/0x900
[  380.429222]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  380.434339]  ? pvclock_read_flags+0x160/0x160
[  380.438838]  ? lapic_next_event+0x5a/0x90
[  380.443003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.448545]  ? kvm_clock_read+0x18/0x30
[  380.452537]  ? kvm_sched_clock_read+0x9/0x20
[  380.456952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.462488]  ? check_preemption_disabled+0x48/0x280
[  380.467528]  irq_exit+0x17f/0x1c0
[  380.470999]  smp_apic_timer_interrupt+0x1cb/0x760
[  380.475840]  ? smp_reschedule_interrupt+0x109/0x650
[  380.480859]  ? smp_call_function_single_interrupt+0x650/0x650
[  380.486743]  ? interrupt_entry+0xb5/0xc0
[  380.490808]  ? trace_hardirqs_off_caller+0xbb/0x310
[  380.495824]  ? trace_hardirqs_off_caller+0xbb/0x310
[  380.500860]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.505722]  ? trace_hardirqs_on_caller+0x310/0x310
[  380.510769]  ? trace_hardirqs_on_caller+0x310/0x310
[  380.515789]  ? task_prio+0x50/0x50
[  380.519335]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.524887]  ? check_preemption_disabled+0x48/0x280
[  380.529922]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.534792]  apic_timer_interrupt+0xf/0x20
[  380.539019]  </IRQ>
[  380.541259] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  380.546189] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  380.565105] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  380.572866] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  380.580142] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  380.587409] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  380.594706] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  380.601973] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  380.609278]  skb_clone+0x1bb/0x500
[  380.612819]  ? skb_split+0x11e0/0x11e0
[  380.616708]  ? preempt_notifier_register+0x200/0x200
[  380.621810]  ? __switch_to_asm+0x34/0x70
[  380.625880]  ? __switch_to_asm+0x34/0x70
[  380.629955]  ? __switch_to_asm+0x40/0x70
[  380.634025]  ? __switch_to_asm+0x34/0x70
[  380.638102]  ? __switch_to_asm+0x40/0x70
[  380.642172]  ? __switch_to_asm+0x40/0x70
[  380.646233]  ? __switch_to_asm+0x34/0x70
[  380.650295]  ? __switch_to_asm+0x34/0x70
[  380.654356]  ? __switch_to_asm+0x40/0x70
[  380.658418]  ? __switch_to_asm+0x34/0x70
[  380.662488]  bpf_clone_redirect+0xb9/0x490
[  380.666734]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  380.671754]  ? __sched_text_start+0x8/0x8
[  380.675912]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  380.680681]  ? find_held_lock+0x36/0x1c0
[  380.684754]  ? lock_acquire+0x1ed/0x520
[  380.688729]  ? bpf_test_run+0x3ee/0x7a0
[  380.692706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  380.698278]  ? check_preemption_disabled+0x48/0x280
[  380.703319]  ? kasan_check_read+0x11/0x20
[  380.707469]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  380.712746]  ? rcu_softirq_qs+0x20/0x20
[  380.716725]  ? preempt_schedule+0x4d/0x60
[  380.720874]  ? ___preempt_schedule+0x16/0x18
[  380.725326]  ? bpf_test_run+0x271/0x7a0
[  380.729325]  ? netlink_diag_dump+0x2a0/0x2a0
[  380.733736]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.739366]  ? bpf_test_init.isra.10+0x70/0x100
[  380.744061]  ? bpf_prog_test_run_skb+0x762/0xd60
[  380.748826]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  380.753679]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  380.759216]  ? fput+0x130/0x1a0
[  380.762511]  ? __bpf_prog_get+0x9b/0x290
[  380.766589]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  380.771432]  ? bpf_prog_test_run+0x130/0x1a0
[  380.775847]  ? __x64_sys_bpf+0x3d8/0x520
[  380.779906]  ? bpf_prog_get+0x20/0x20
[  380.783744]  ? do_syscall_64+0x1b9/0x820
[  380.787801]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  380.793183]  ? syscall_return_slowpath+0x5e0/0x5e0
[  380.798110]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.802973]  ? trace_hardirqs_on_caller+0x310/0x310
[  380.807994]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  380.813023]  ? prepare_exit_to_usermode+0x291/0x3b0
[  380.818043]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  380.822906]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  380.828322] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  380.828410] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  380.835262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  380.835268] Call Trace:
[  380.835274]  <IRQ>
[  380.835291]  dump_stack+0x244/0x39d
[  380.835312]  ? dump_stack_print_info.cold.1+0x20/0x20
[  380.841890] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  380.851163]  warn_alloc.cold.116+0xb7/0x1bd
[  380.853731] syz-executor4 cpuset=syz4 mems_allowed=0
[  380.855900]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  380.889378]  ? lock_downgrade+0x900/0x900
[  380.893561]  ? trace_hardirqs_off+0xb8/0x310
[  380.897979]  ? trace_hardirqs_off+0xb8/0x310
[  380.902394]  __alloc_pages_slowpath+0x2651/0x2de0
[  380.907267]  ? warn_alloc+0x120/0x120
[  380.911087]  ? print_usage_bug+0xc0/0xc0
[  380.915190]  ? warn_alloc+0x120/0x120
[  380.919011]  ? warn_alloc+0x120/0x120
[  380.922812]  ? print_usage_bug+0xc0/0xc0
[  380.926877]  ? print_usage_bug+0xc0/0xc0
[  380.930948]  ? __lock_acquire+0x62f/0x4c20
[  380.935190]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  380.940728]  ? should_fail+0x22d/0xd01
[  380.944619]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.949834]  ? __lock_acquire+0x62f/0x4c20
[  380.954073]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  380.959171]  ? __lock_acquire+0x62f/0x4c20
[  380.963466]  ? should_fail+0x22d/0xd01
[  380.967353]  ? find_held_lock+0x36/0x1c0
[  380.971426]  ? mark_held_locks+0x130/0x130
[  380.975683]  ? mark_held_locks+0x130/0x130
[  380.979917]  ? zap_class+0x640/0x640
[  380.983634]  ? zap_class+0x640/0x640
[  380.987349]  ? print_usage_bug+0xc0/0xc0
[  380.991407]  ? do_raw_spin_unlock+0xa7/0x330
[  380.995833]  ? zap_class+0x640/0x640
[  380.999546]  ? print_usage_bug+0xc0/0xc0
[  381.003608]  ? wq_watchdog_touch+0x9c/0xfe
[  381.007852]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.013410]  ? check_preemption_disabled+0x48/0x280
[  381.018452]  ? __lock_is_held+0xb5/0x140
[  381.022547]  __alloc_pages_nodemask+0xad8/0xea0
[  381.027225]  ? zap_class+0x640/0x640
[  381.030944]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  381.035966]  ? find_held_lock+0x36/0x1c0
[  381.040032]  ? ____cache_alloc_node+0x1c7/0x1e0
[  381.044713]  ? lock_downgrade+0x900/0x900
[  381.048867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.054410]  cache_grow_begin+0xa5/0x8c0
[  381.058509]  ? do_raw_spin_unlock+0xa7/0x330
[  381.062953]  fallback_alloc+0x204/0x2e0
[  381.066937]  ____cache_alloc_node+0x1c7/0x1e0
[  381.071431]  kmem_cache_alloc_node+0xe3/0x730
[  381.075924]  ? ipv6_get_ifaddr+0x42e/0x620
[  381.080698]  __alloc_skb+0x119/0x770
[  381.084404]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.089699]  ? netdev_alloc_frag+0x1f0/0x1f0
[  381.094102]  ? lock_downgrade+0x900/0x900
[  381.098266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.103805]  ? refcount_sub_and_test_checked+0x203/0x310
[  381.109261]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  381.114714]  ? addrconf_rs_timer+0x690/0x690
[  381.119146]  ndisc_alloc_skb+0x144/0x340
[  381.123232]  ndisc_send_rs+0x331/0x6e0
[  381.127150]  addrconf_rs_timer+0x314/0x690
[  381.131393]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.135641]  call_timer_fn+0x272/0x920
[  381.139530]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.143783]  ? process_timeout+0x40/0x40
[  381.147871]  ? mark_held_locks+0xc7/0x130
[  381.152028]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.156522]  ? _raw_spin_unlock_irq+0x27/0x80
[  381.161017]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.165254]  ? lockdep_hardirqs_on+0x296/0x5b0
[  381.169863]  ? trace_hardirqs_on+0xbd/0x310
[  381.174194]  ? kasan_check_read+0x11/0x20
[  381.178343]  ? __run_timers+0x7da/0xc70
[  381.182321]  ? trace_hardirqs_off_caller+0x310/0x310
[  381.187429]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.191672]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  381.195909]  __run_timers+0x7e5/0xc70
[  381.199720]  ? timer_fixup_init+0x70/0x70
[  381.203873]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  381.208898]  ? zap_class+0x640/0x640
[  381.212619]  ? print_usage_bug+0xc0/0xc0
[  381.216682]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  381.221881]  ? find_held_lock+0x36/0x1c0
[  381.225952]  ? zap_class+0x640/0x640
[  381.229672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.235210]  ? check_preemption_disabled+0x48/0x280
[  381.240248]  ? __lock_is_held+0xb5/0x140
[  381.244326]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.249868]  ? check_preemption_disabled+0x48/0x280
[  381.254910]  run_timer_softirq+0x52/0xb0
[  381.258984]  ? rcu_read_lock_sched_held+0x14f/0x180
[  381.264000]  __do_softirq+0x308/0xb7e
[  381.267813]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  381.272305]  ? lock_downgrade+0x900/0x900
[  381.276463]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  381.281576]  ? pvclock_read_flags+0x160/0x160
[  381.286073]  ? lapic_next_event+0x5a/0x90
[  381.290231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.295767]  ? kvm_clock_read+0x18/0x30
[  381.299767]  ? kvm_sched_clock_read+0x9/0x20
[  381.304175]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.309708]  ? check_preemption_disabled+0x48/0x280
[  381.314743]  irq_exit+0x17f/0x1c0
[  381.318199]  smp_apic_timer_interrupt+0x1cb/0x760
[  381.323043]  ? smp_reschedule_interrupt+0x109/0x650
[  381.328067]  ? smp_call_function_single_interrupt+0x650/0x650
[  381.333945]  ? interrupt_entry+0xb5/0xc0
[  381.338002]  ? trace_hardirqs_off_caller+0xbb/0x310
[  381.343012]  ? trace_hardirqs_off_caller+0xbb/0x310
[  381.348023]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.352877]  ? trace_hardirqs_on_caller+0x310/0x310
[  381.357919]  ? trace_hardirqs_on_caller+0x310/0x310
[  381.362941]  ? task_prio+0x50/0x50
[  381.366478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.372010]  ? check_preemption_disabled+0x48/0x280
[  381.377025]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  381.381900]  apic_timer_interrupt+0xf/0x20
[  381.386127]  </IRQ>
[  381.388361] RIP: 0010:lock_acquire+0x268/0x520
[  381.392938] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  381.411832] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  381.419533] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  381.426826] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  381.434088] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  381.441383] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  381.448673] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  381.455980]  ? lruvec_lru_size+0x450/0x450
[  381.460215]  ? kasan_check_read+0x11/0x20
[  381.464364]  ? lock_release+0xa00/0xa00
[  381.468341]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  381.473279]  down_read_trylock+0xda/0x140
[  381.477425]  ? shrink_slab+0x207/0x8c0
[  381.481325]  ? downgrade_write+0x270/0x270
[  381.485568]  shrink_slab+0x207/0x8c0
[  381.489282]  ? shrink_active_list+0x1f00/0x1f00
[  381.493958]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  381.499581]  ? __lock_acquire+0x62f/0x4c20
[  381.503815]  ? percpu_ref_get_many+0x240/0x240
[  381.508405]  ? print_usage_bug+0xc0/0xc0
[  381.512473]  shrink_node+0x431/0x16b0
[  381.516274]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  381.521578]  ? shrink_node_memcg+0x18f0/0x18f0
[  381.526162]  ? kvm_clock_read+0x18/0x30
[  381.530140]  ? ktime_get+0x2c1/0x400
[  381.533856]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  381.538351]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  381.543888]  ? __cpuset_node_allowed+0x19b/0x660
[  381.548659]  ? mark_held_locks+0x130/0x130
[  381.552900]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  381.558608]  ? zap_class+0x640/0x640
[  381.562331]  do_try_to_free_pages+0x3e7/0x1290
[  381.566916]  ? zap_class+0x640/0x640
[  381.570642]  ? shrink_node+0x16b0/0x16b0
[  381.574715]  ? __lock_is_held+0xb5/0x140
[  381.578782]  try_to_free_pages+0x4d0/0xb90
[  381.583020]  ? do_try_to_free_pages+0x1290/0x1290
[  381.587867]  ? lock_acquire+0x1ed/0x520
[  381.591845]  ? set_page_refcounted+0x280/0x280
[  381.596428]  ? lock_release+0xa00/0xa00
[  381.600394]  ? _raw_spin_unlock_irq+0x60/0x80
[  381.604887]  ? psi_memstall_enter+0x240/0x2b0
[  381.609393]  ? psi_memstall_tick+0x230/0x230
[  381.613806]  __alloc_pages_slowpath+0xa48/0x2de0
[  381.618634]  ? warn_alloc+0x120/0x120
[  381.622432]  ? mark_held_locks+0x130/0x130
[  381.626669]  ? find_get_entry+0xaae/0x1120
[  381.630916]  ? filemap_map_pages+0x1a20/0x1a20
[  381.635499]  ? zap_class+0x640/0x640
[  381.639219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.644771]  ? check_preemption_disabled+0x48/0x280
[  381.649800]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.655341]  ? should_fail+0x22d/0xd01
[  381.659236]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  381.664341]  ? zap_class+0x640/0x640
[  381.668073]  ? __lock_is_held+0xb5/0x140
[  381.672160]  ? mark_held_locks+0x130/0x130
[  381.676409]  ? lock_release+0xa00/0xa00
[  381.680413]  ? perf_trace_sched_process_exec+0x860/0x860
[  381.685861]  ? xa_load+0x2ba/0x460
[  381.689403]  ? lock_downgrade+0x900/0x900
[  381.693552]  ? __might_sleep+0x95/0x190
[  381.697533]  __alloc_pages_nodemask+0xad8/0xea0
[  381.702200]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  381.707209]  ? __page_cache_alloc+0x191/0x5c0
[  381.711693]  ? xa_load+0x2e1/0x460
[  381.715259]  ? xa_clear_mark+0x40/0x40
[  381.719155]  ? zap_class+0x640/0x640
[  381.722868]  ? zap_class+0x640/0x640
[  381.726579]  ? zap_class+0x640/0x640
[  381.730291]  ? __do_page_cache_readahead+0x663/0x810
[  381.735395]  ? find_held_lock+0x36/0x1c0
[  381.739457]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  381.744996]  alloc_pages_current+0x173/0x350
[  381.749407]  __page_cache_alloc+0x38c/0x5c0
[  381.753734]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.758667]  ? kasan_check_read+0x11/0x20
[  381.762825]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.768097]  ? generic_perform_write+0x6a0/0x6a0
[  381.772854]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.778404]  ? check_preemption_disabled+0x48/0x280
[  381.783429]  filemap_fault+0x1595/0x25f0
[  381.787500]  ? __lock_page_or_retry+0xa00/0xa00
[  381.792165]  ? mark_held_locks+0x130/0x130
[  381.796428]  ? filemap_map_pages+0xd6b/0x1a20
[  381.800920]  ? lock_downgrade+0x900/0x900
[  381.805064]  ? check_preemption_disabled+0x48/0x280
[  381.810075]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.815000]  ? kasan_check_read+0x11/0x20
[  381.819148]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.824435]  ? rcu_softirq_qs+0x20/0x20
[  381.828419]  ? filemap_map_pages+0xd92/0x1a20
[  381.832926]  ? find_get_entries_tag+0x1400/0x1400
[  381.837787]  ? debug_object_destroy+0x2b0/0x2b0
[  381.842460]  ? lock_pi_update_atomic+0x150/0x150
[  381.847226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  381.852767]  ? lock_acquire+0x1ed/0x520
[  381.856759]  ? ext4_filemap_fault+0x7a/0xad
[  381.861096]  ? lock_release+0xa00/0xa00
[  381.865067]  ? perf_trace_sched_process_exec+0x860/0x860
[  381.870511]  ? print_usage_bug+0xc0/0xc0
[  381.874584]  ? print_usage_bug+0xc0/0xc0
[  381.878694]  ? down_read+0x8d/0x120
[  381.882315]  ? ext4_filemap_fault+0x7a/0xad
[  381.886649]  ? __down_interruptible+0x700/0x700
[  381.891320]  ext4_filemap_fault+0x82/0xad
[  381.895466]  __do_fault+0x100/0x6b0
[  381.899082]  ? find_held_lock+0x36/0x1c0
[  381.903143]  ? pmd_devmap_trans_unstable+0x220/0x220
[  381.908256]  ? mark_held_locks+0x130/0x130
[  381.912486]  ? mark_held_locks+0x130/0x130
[  381.916740]  ? kasan_check_read+0x11/0x20
[  381.920886]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  381.926448]  __handle_mm_fault+0x3ea0/0x5be0
[  381.930882]  ? perf_trace_lock+0x7a0/0x7a0
[  381.935132]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  381.939978]  ? __switch_to_asm+0x34/0x70
[  381.944034]  ? __switch_to_asm+0x34/0x70
[  381.948105]  ? zap_class+0x640/0x640
[  381.951821]  ? zap_class+0x640/0x640
[  381.955555]  ? __x64_sys_futex+0x53e/0x6a0
[  381.959803]  ? find_held_lock+0x36/0x1c0
[  381.963901]  ? handle_mm_fault+0x42a/0xc70
[  381.968152]  ? lock_downgrade+0x900/0x900
[  381.972311]  ? check_preemption_disabled+0x48/0x280
[  381.977325]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  381.982248]  ? kasan_check_read+0x11/0x20
[  381.986417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  381.991693]  ? rcu_softirq_qs+0x20/0x20
[  381.995670]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.000789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.006322]  ? sync_mm_rss+0x9a/0x1c0
[  382.010131]  handle_mm_fault+0x54f/0xc70
[  382.014221]  ? __handle_mm_fault+0x5be0/0x5be0
[  382.018805]  ? find_vma+0x34/0x190
[  382.022355]  __do_page_fault+0x5e8/0xe60
[  382.026428]  ? trace_hardirqs_off+0xb8/0x310
[  382.030842]  do_page_fault+0xf2/0x7e0
[  382.034639]  ? vmalloc_sync_all+0x30/0x30
[  382.038780]  ? error_entry+0x70/0xd0
[  382.042487]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.047495]  ? trace_hardirqs_on_caller+0xc0/0x310
[  382.052455]  ? syscall_return_slowpath+0x5e0/0x5e0
[  382.057382]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.062252]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.067264]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  382.072709]  ? prepare_exit_to_usermode+0x291/0x3b0
[  382.077715]  ? page_fault+0x8/0x30
[  382.081250]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.086083]  ? page_fault+0x8/0x30
[  382.089621]  page_fault+0x1e/0x30
[  382.093101] RIP: 0033:0x45ddf3
[  382.096329] Code: Bad RIP value.
[  382.099690] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  382.105049] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  382.112324] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  382.119605] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  382.126873] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  382.134168] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  382.141468] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  382.141473] warn_alloc_show_mem: 1 callbacks suppressed
[  382.141480] Mem-Info:
[  382.148774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  382.154149] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  382.154149]  active_file:17 inactive_file:17 isolated_file:0
[  382.154149]  unevictable:0 dirty:4 writeback:0 unstable:0
[  382.154149]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  382.154149]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  382.154149]  free:13550 free_pcp:124 free_cma:0
[  382.156520] Call Trace:
[  382.165924] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  382.198940]  <IRQ>
[  382.201508] 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
[  382.229278]  dump_stack+0x244/0x39d
[  382.231403] lowmem_reserve[]: 0 2818 6321 6321
[  382.257508]  ? dump_stack_print_info.cold.1+0x20/0x20
[  382.261106] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  382.265702]  warn_alloc.cold.116+0xb7/0x1bd
[  382.270859] lowmem_reserve[]: 0 0 3503 3503
[  382.298174]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  382.302466] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  382.306775]  ? lock_downgrade+0x900/0x900
[  382.311587] lowmem_reserve[]: 0 0 0 0
[  382.340475]  ? trace_hardirqs_off+0xb8/0x310
[  382.344592] 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
[  382.348453]  ? trace_hardirqs_off+0xb8/0x310
[  382.352859] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  382.366376]  __alloc_pages_slowpath+0x2651/0x2de0
[  382.370757] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  382.385548]  ? warn_alloc+0x120/0x120
[  382.390350] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  382.405071]  ? print_usage_bug+0xc0/0xc0
[  382.408864] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  382.417698]  ? warn_alloc+0x120/0x120
[  382.421738] 1360 total pagecache pages
[  382.430325]  ? warn_alloc+0x120/0x120
[  382.434112] 0 pages in swap cache
[  382.437992]  ? print_usage_bug+0xc0/0xc0
[  382.441769] Swap cache stats: add 0, delete 0, find 0/0
[  382.445223]  ? kvm_clock_read+0x18/0x30
[  382.449253] Free swap  = 0kB
[  382.454625]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  382.458577] Total swap = 0kB
[  382.461590]  ? print_usage_bug+0xc0/0xc0
[  382.466589] 1965979 pages RAM
[  382.469600]  ? __lock_acquire+0x62f/0x4c20
[  382.473639] 0 pages HighMem/MovableOnly
[  382.476737]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.480944] 342854 pages reserved
[  382.484907]  ? should_fail+0x22d/0xd01
[  382.484922]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.490438] 0 pages cma reserved
[  382.493883]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.497823] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  382.503011]  ? __lock_acquire+0x62f/0x4c20
[  382.503030]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  382.503046]  ? __lock_acquire+0x62f/0x4c20
[  382.506466] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  382.511527]  ? should_fail+0x22d/0xd01
[  382.517992] syz-fuzzer cpuset=/ mems_allowed=0
[  382.522231]  ? rcu_irq_exit+0x1a2/0x390
[  382.554174]  ? mark_held_locks+0x130/0x130
[  382.558433]  ? mark_held_locks+0x130/0x130
[  382.562669]  ? mark_held_locks+0xc7/0x130
[  382.566818]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  382.571850]  ? zap_class+0x640/0x640
[  382.575563]  ? print_usage_bug+0xc0/0xc0
[  382.579658]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.585195]  ? check_preemption_disabled+0x48/0x280
[  382.590222]  ? __lock_is_held+0xb5/0x140
[  382.594306]  __alloc_pages_nodemask+0xad8/0xea0
[  382.598976]  ? zap_class+0x640/0x640
[  382.602715]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  382.607742]  ? find_held_lock+0x36/0x1c0
[  382.611812]  ? ____cache_alloc_node+0x1c7/0x1e0
[  382.616483]  ? lock_downgrade+0x900/0x900
[  382.620639]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.626182]  cache_grow_begin+0xa5/0x8c0
[  382.630244]  ? do_raw_spin_unlock+0xa7/0x330
[  382.634657]  fallback_alloc+0x204/0x2e0
[  382.638634]  ____cache_alloc_node+0x1c7/0x1e0
[  382.643178]  kmem_cache_alloc_node+0xe3/0x730
[  382.647736]  ? ipv6_get_ifaddr+0x42e/0x620
[  382.651995]  __alloc_skb+0x119/0x770
[  382.655704]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.660987]  ? netdev_alloc_frag+0x1f0/0x1f0
[  382.665399]  ? lock_downgrade+0x900/0x900
[  382.669566]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.675102]  ? refcount_sub_and_test_checked+0x203/0x310
[  382.680562]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  382.686016]  ? addrconf_rs_timer+0x690/0x690
[  382.690438]  ndisc_alloc_skb+0x144/0x340
[  382.694502]  ndisc_send_rs+0x331/0x6e0
[  382.698399]  addrconf_rs_timer+0x314/0x690
[  382.702659]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.706915]  call_timer_fn+0x272/0x920
[  382.710800]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.715061]  ? process_timeout+0x40/0x40
[  382.719138]  ? __run_timers+0x7da/0xc70
[  382.723116]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.727632]  ? _raw_spin_unlock_irq+0x27/0x80
[  382.732131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.736366]  ? lockdep_hardirqs_on+0x296/0x5b0
[  382.740953]  ? trace_hardirqs_on+0xbd/0x310
[  382.745287]  ? kasan_check_read+0x11/0x20
[  382.749434]  ? __run_timers+0x7da/0xc70
[  382.753426]  ? trace_hardirqs_off_caller+0x310/0x310
[  382.758545]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.762785]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  382.767017]  __run_timers+0x7e5/0xc70
[  382.770842]  ? timer_fixup_init+0x70/0x70
[  382.774987]  ? kasan_check_read+0x11/0x20
[  382.779139]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  382.784436]  ? rcu_softirq_qs+0x20/0x20
[  382.788452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.793987]  ? check_preemption_disabled+0x48/0x280
[  382.799004]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  382.803758]  ? retint_kernel+0x2d/0x2d
[  382.807677]  ? trace_hardirqs_on_caller+0xc0/0x310
[  382.812615]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  382.817366]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  382.822830]  ? zap_class+0x640/0x640
[  382.826657]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.832190]  ? check_preemption_disabled+0x48/0x280
[  382.837214]  ? __lock_is_held+0xb5/0x140
[  382.841274]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.846839]  ? check_preemption_disabled+0x48/0x280
[  382.851860]  run_timer_softirq+0x52/0xb0
[  382.855933]  ? rcu_read_lock_sched_held+0x14f/0x180
[  382.860963]  __do_softirq+0x308/0xb7e
[  382.864792]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  382.869285]  ? lock_downgrade+0x900/0x900
[  382.873441]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  382.878572]  ? pvclock_read_flags+0x160/0x160
[  382.883069]  ? lapic_next_event+0x5a/0x90
[  382.887224]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.892764]  ? kvm_clock_read+0x18/0x30
[  382.896737]  ? kvm_sched_clock_read+0x9/0x20
[  382.901158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  382.906694]  ? check_preemption_disabled+0x48/0x280
[  382.911721]  irq_exit+0x17f/0x1c0
[  382.915178]  smp_apic_timer_interrupt+0x1cb/0x760
[  382.920023]  ? smp_reschedule_interrupt+0x109/0x650
[  382.925039]  ? smp_call_function_single_interrupt+0x650/0x650
[  382.930926]  ? interrupt_entry+0xb5/0xc0
[  382.934990]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.940006]  ? trace_hardirqs_off_caller+0xbb/0x310
[  382.945042]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.950101]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.955132]  ? trace_hardirqs_on_caller+0x310/0x310
[  382.960171]  ? task_prio+0x50/0x50
[  382.963726]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  382.969262]  ? check_preemption_disabled+0x48/0x280
[  382.974290]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  382.979146]  apic_timer_interrupt+0xf/0x20
[  382.983375]  </IRQ>
[  382.985622] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  382.990552] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  383.009447] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  383.017151] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  383.024431] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  383.031716] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  383.038974] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  383.046264] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  383.053576]  skb_clone+0x1bb/0x500
[  383.057114]  ? skb_split+0x11e0/0x11e0
[  383.061010]  ? preempt_notifier_register+0x200/0x200
[  383.066160]  ? __switch_to_asm+0x34/0x70
[  383.070247]  ? __switch_to_asm+0x34/0x70
[  383.074302]  ? __switch_to_asm+0x40/0x70
[  383.078385]  ? __switch_to_asm+0x34/0x70
[  383.082613]  ? __switch_to_asm+0x40/0x70
[  383.086683]  ? __switch_to_asm+0x40/0x70
[  383.090739]  ? __switch_to_asm+0x34/0x70
[  383.094795]  ? __switch_to_asm+0x34/0x70
[  383.098852]  ? __switch_to_asm+0x40/0x70
[  383.102905]  ? __switch_to_asm+0x34/0x70
[  383.106966]  bpf_clone_redirect+0xb9/0x490
[  383.111209]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  383.116230]  ? __sched_text_start+0x8/0x8
[  383.120398]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  383.125166]  ? find_held_lock+0x36/0x1c0
[  383.129241]  ? lock_acquire+0x1ed/0x520
[  383.133218]  ? bpf_test_run+0x3ee/0x7a0
[  383.137193]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.142730]  ? check_preemption_disabled+0x48/0x280
[  383.147770]  ? kasan_check_read+0x11/0x20
[  383.151946]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.157224]  ? rcu_softirq_qs+0x20/0x20
[  383.161207]  ? preempt_schedule+0x4d/0x60
[  383.165357]  ? ___preempt_schedule+0x16/0x18
[  383.169775]  ? bpf_test_run+0x271/0x7a0
[  383.173764]  ? netlink_diag_dump+0x2a0/0x2a0
[  383.178174]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.183711]  ? bpf_test_init.isra.10+0x70/0x100
[  383.188384]  ? bpf_prog_test_run_skb+0x762/0xd60
[  383.193154]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  383.198014]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  383.203564]  ? fput+0x130/0x1a0
[  383.206847]  ? __bpf_prog_get+0x9b/0x290
[  383.210912]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  383.215803]  ? bpf_prog_test_run+0x130/0x1a0
[  383.220228]  ? __x64_sys_bpf+0x3d8/0x520
[  383.224308]  ? bpf_prog_get+0x20/0x20
[  383.228129]  ? do_syscall_64+0x1b9/0x820
[  383.232185]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  383.237544]  ? syscall_return_slowpath+0x5e0/0x5e0
[  383.242467]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.247307]  ? trace_hardirqs_on_caller+0x310/0x310
[  383.252332]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  383.257366]  ? prepare_exit_to_usermode+0x291/0x3b0
[  383.262383]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.267270]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  383.272659] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  383.272745] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  383.279590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  383.279598] Call Trace:
[  383.286167] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  383.295451]  <IRQ>
[  383.298023] syz-executor4 cpuset=syz4 mems_allowed=0
[  383.308510]  dump_stack+0x244/0x39d
[  383.319363]  ? dump_stack_print_info.cold.1+0x20/0x20
[  383.324558]  warn_alloc.cold.116+0xb7/0x1bd
[  383.328918]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  383.333756]  ? lock_downgrade+0x900/0x900
[  383.337930]  ? trace_hardirqs_off+0xb8/0x310
[  383.342347]  ? trace_hardirqs_off+0xb8/0x310
[  383.346758]  __alloc_pages_slowpath+0x2651/0x2de0
[  383.351633]  ? warn_alloc+0x120/0x120
[  383.355430]  ? print_usage_bug+0xc0/0xc0
[  383.359493]  ? warn_alloc+0x120/0x120
[  383.363311]  ? warn_alloc+0x120/0x120
[  383.367177]  ? print_usage_bug+0xc0/0xc0
[  383.371243]  ? print_usage_bug+0xc0/0xc0
[  383.375299]  ? __lock_acquire+0x62f/0x4c20
[  383.379533]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.385093]  ? should_fail+0x22d/0xd01
[  383.389002]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.394100]  ? __lock_acquire+0x62f/0x4c20
[  383.398342]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  383.403439]  ? __lock_acquire+0x62f/0x4c20
[  383.407678]  ? should_fail+0x22d/0xd01
[  383.411605]  ? find_held_lock+0x36/0x1c0
[  383.415667]  ? mark_held_locks+0x130/0x130
[  383.419905]  ? mark_held_locks+0x130/0x130
[  383.424143]  ? zap_class+0x640/0x640
[  383.427851]  ? zap_class+0x640/0x640
[  383.431578]  ? print_usage_bug+0xc0/0xc0
[  383.435649]  ? do_raw_spin_unlock+0xa7/0x330
[  383.440060]  ? zap_class+0x640/0x640
[  383.443786]  ? print_usage_bug+0xc0/0xc0
[  383.447859]  ? wq_watchdog_touch+0x9c/0xfe
[  383.452097]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.457645]  ? check_preemption_disabled+0x48/0x280
[  383.462673]  ? __lock_is_held+0xb5/0x140
[  383.466738]  __alloc_pages_nodemask+0xad8/0xea0
[  383.471408]  ? zap_class+0x640/0x640
[  383.475147]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  383.480173]  ? find_held_lock+0x36/0x1c0
[  383.484257]  ? ____cache_alloc_node+0x1c7/0x1e0
[  383.488927]  ? lock_downgrade+0x900/0x900
[  383.493081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.498625]  cache_grow_begin+0xa5/0x8c0
[  383.502714]  ? do_raw_spin_unlock+0xa7/0x330
[  383.507141]  fallback_alloc+0x204/0x2e0
[  383.511135]  ____cache_alloc_node+0x1c7/0x1e0
[  383.515641]  kmem_cache_alloc_node+0xe3/0x730
[  383.520145]  ? ipv6_get_ifaddr+0x42e/0x620
[  383.524391]  __alloc_skb+0x119/0x770
[  383.528115]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  383.533404]  ? netdev_alloc_frag+0x1f0/0x1f0
[  383.537825]  ? lock_downgrade+0x900/0x900
[  383.541990]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.547546]  ? refcount_sub_and_test_checked+0x203/0x310
[  383.552996]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  383.558443]  ? addrconf_rs_timer+0x690/0x690
[  383.562861]  ndisc_alloc_skb+0x144/0x340
[  383.566924]  ndisc_send_rs+0x331/0x6e0
[  383.570832]  addrconf_rs_timer+0x314/0x690
[  383.575077]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.579323]  call_timer_fn+0x272/0x920
[  383.583209]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.587442]  ? process_timeout+0x40/0x40
[  383.591507]  ? mark_held_locks+0xc7/0x130
[  383.595652]  ? _raw_spin_unlock_irq+0x27/0x80
[  383.600147]  ? _raw_spin_unlock_irq+0x27/0x80
[  383.604640]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.608878]  ? lockdep_hardirqs_on+0x296/0x5b0
[  383.613494]  ? trace_hardirqs_on+0xbd/0x310
[  383.617809]  ? kasan_check_read+0x11/0x20
[  383.621947]  ? __run_timers+0x7da/0xc70
[  383.625923]  ? trace_hardirqs_off_caller+0x310/0x310
[  383.631028]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.635275]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  383.639535]  __run_timers+0x7e5/0xc70
[  383.643345]  ? timer_fixup_init+0x70/0x70
[  383.647505]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  383.652533]  ? zap_class+0x640/0x640
[  383.656266]  ? print_usage_bug+0xc0/0xc0
[  383.660327]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  383.665525]  ? find_held_lock+0x36/0x1c0
[  383.669590]  ? zap_class+0x640/0x640
[  383.673308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.678864]  ? check_preemption_disabled+0x48/0x280
[  383.683906]  ? __lock_is_held+0xb5/0x140
[  383.687970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.693507]  ? check_preemption_disabled+0x48/0x280
[  383.698523]  run_timer_softirq+0x52/0xb0
[  383.702578]  ? rcu_read_lock_sched_held+0x14f/0x180
[  383.707588]  __do_softirq+0x308/0xb7e
[  383.711463]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  383.715957]  ? lock_downgrade+0x900/0x900
[  383.720109]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  383.725223]  ? pvclock_read_flags+0x160/0x160
[  383.729716]  ? lapic_next_event+0x5a/0x90
[  383.733879]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.739422]  ? kvm_clock_read+0x18/0x30
[  383.743396]  ? kvm_sched_clock_read+0x9/0x20
[  383.747824]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  383.753362]  ? check_preemption_disabled+0x48/0x280
[  383.758386]  irq_exit+0x17f/0x1c0
[  383.761843]  smp_apic_timer_interrupt+0x1cb/0x760
[  383.766682]  ? smp_reschedule_interrupt+0x109/0x650
[  383.771693]  ? smp_call_function_single_interrupt+0x650/0x650
[  383.777585]  ? interrupt_entry+0xb5/0xc0
[  383.781655]  ? trace_hardirqs_off_caller+0xbb/0x310
[  383.786665]  ? trace_hardirqs_off_caller+0xbb/0x310
[  383.791692]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.796526]  ? trace_hardirqs_on_caller+0x310/0x310
[  383.801532]  ? trace_hardirqs_on_caller+0x310/0x310
[  383.806563]  ? task_prio+0x50/0x50
[  383.810103]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  383.815661]  ? check_preemption_disabled+0x48/0x280
[  383.820689]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  383.825574]  apic_timer_interrupt+0xf/0x20
[  383.829831]  </IRQ>
[  383.832076] RIP: 0010:lock_acquire+0x268/0x520
[  383.836679] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  383.855578] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  383.863280] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  383.870549] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  383.877814] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  383.885078] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  383.892341] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  383.899630]  ? lruvec_lru_size+0x450/0x450
[  383.903866]  ? kasan_check_read+0x11/0x20
[  383.908017]  ? lock_release+0xa00/0xa00
[  383.911991]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  383.916935]  down_read_trylock+0xda/0x140
[  383.921105]  ? shrink_slab+0x207/0x8c0
[  383.924998]  ? downgrade_write+0x270/0x270
[  383.929245]  shrink_slab+0x207/0x8c0
[  383.932964]  ? shrink_active_list+0x1f00/0x1f00
[  383.937642]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  383.943263]  ? __lock_acquire+0x62f/0x4c20
[  383.947499]  ? percpu_ref_get_many+0x240/0x240
[  383.952095]  ? print_usage_bug+0xc0/0xc0
[  383.956185]  shrink_node+0x431/0x16b0
[  383.959985]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  383.965282]  ? shrink_node_memcg+0x18f0/0x18f0
[  383.969871]  ? kvm_clock_read+0x18/0x30
[  383.973851]  ? ktime_get+0x2c1/0x400
[  383.977569]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  383.982066]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  383.987654]  ? __cpuset_node_allowed+0x19b/0x660
[  383.992420]  ? mark_held_locks+0x130/0x130
[  383.996649]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  384.002351]  ? zap_class+0x640/0x640
[  384.006064]  do_try_to_free_pages+0x3e7/0x1290
[  384.010665]  ? zap_class+0x640/0x640
[  384.014419]  ? shrink_node+0x16b0/0x16b0
[  384.018475]  ? __lock_is_held+0xb5/0x140
[  384.022544]  try_to_free_pages+0x4d0/0xb90
[  384.026822]  ? do_try_to_free_pages+0x1290/0x1290
[  384.031673]  ? lock_acquire+0x1ed/0x520
[  384.035675]  ? set_page_refcounted+0x280/0x280
[  384.040268]  ? lock_release+0xa00/0xa00
[  384.044267]  ? _raw_spin_unlock_irq+0x60/0x80
[  384.048760]  ? psi_memstall_enter+0x240/0x2b0
[  384.053256]  ? psi_memstall_tick+0x230/0x230
[  384.057674]  __alloc_pages_slowpath+0xa48/0x2de0
[  384.062457]  ? warn_alloc+0x120/0x120
[  384.066254]  ? mark_held_locks+0x130/0x130
[  384.070504]  ? find_get_entry+0xaae/0x1120
[  384.074743]  ? filemap_map_pages+0x1a20/0x1a20
[  384.079332]  ? zap_class+0x640/0x640
[  384.083054]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.088598]  ? check_preemption_disabled+0x48/0x280
[  384.093616]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.099193]  ? should_fail+0x22d/0xd01
[  384.103108]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.108231]  ? zap_class+0x640/0x640
[  384.111971]  ? __lock_is_held+0xb5/0x140
[  384.116090]  ? mark_held_locks+0x130/0x130
[  384.120350]  ? lock_release+0xa00/0xa00
[  384.124327]  ? perf_trace_sched_process_exec+0x860/0x860
[  384.129778]  ? xa_load+0x2ba/0x460
[  384.133314]  ? lock_downgrade+0x900/0x900
[  384.137465]  ? __might_sleep+0x95/0x190
[  384.141468]  __alloc_pages_nodemask+0xad8/0xea0
[  384.146175]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  384.151187]  ? __page_cache_alloc+0x191/0x5c0
[  384.155675]  ? xa_load+0x2e1/0x460
[  384.159208]  ? xa_clear_mark+0x40/0x40
[  384.163107]  ? zap_class+0x640/0x640
[  384.166863]  ? zap_class+0x640/0x640
[  384.170572]  ? zap_class+0x640/0x640
[  384.174280]  ? __do_page_cache_readahead+0x663/0x810
[  384.179382]  ? find_held_lock+0x36/0x1c0
[  384.183443]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  384.188978]  alloc_pages_current+0x173/0x350
[  384.193384]  __page_cache_alloc+0x38c/0x5c0
[  384.197696]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.202631]  ? kasan_check_read+0x11/0x20
[  384.206787]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.212082]  ? generic_perform_write+0x6a0/0x6a0
[  384.216837]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.222366]  ? check_preemption_disabled+0x48/0x280
[  384.227396]  filemap_fault+0x1595/0x25f0
[  384.231462]  ? __lock_page_or_retry+0xa00/0xa00
[  384.236163]  ? mark_held_locks+0x130/0x130
[  384.240446]  ? filemap_map_pages+0xd6b/0x1a20
[  384.244937]  ? lock_downgrade+0x900/0x900
[  384.249080]  ? check_preemption_disabled+0x48/0x280
[  384.254098]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.259027]  ? kasan_check_read+0x11/0x20
[  384.263168]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.268468]  ? rcu_softirq_qs+0x20/0x20
[  384.272463]  ? filemap_map_pages+0xd92/0x1a20
[  384.276967]  ? find_get_entries_tag+0x1400/0x1400
[  384.281805]  ? debug_object_destroy+0x2b0/0x2b0
[  384.286506]  ? lock_pi_update_atomic+0x150/0x150
[  384.291271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.296827]  ? lock_acquire+0x1ed/0x520
[  384.300809]  ? ext4_filemap_fault+0x7a/0xad
[  384.305137]  ? lock_release+0xa00/0xa00
[  384.309149]  ? perf_trace_sched_process_exec+0x860/0x860
[  384.314643]  ? print_usage_bug+0xc0/0xc0
[  384.318721]  ? print_usage_bug+0xc0/0xc0
[  384.322819]  ? down_read+0x8d/0x120
[  384.326470]  ? ext4_filemap_fault+0x7a/0xad
[  384.330790]  ? __down_interruptible+0x700/0x700
[  384.335465]  ext4_filemap_fault+0x82/0xad
[  384.339615]  __do_fault+0x100/0x6b0
[  384.343238]  ? find_held_lock+0x36/0x1c0
[  384.347298]  ? pmd_devmap_trans_unstable+0x220/0x220
[  384.352415]  ? mark_held_locks+0x130/0x130
[  384.356677]  ? mark_held_locks+0x130/0x130
[  384.360918]  ? kasan_check_read+0x11/0x20
[  384.365061]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.370786]  __handle_mm_fault+0x3ea0/0x5be0
[  384.375192]  ? perf_trace_lock+0x7a0/0x7a0
[  384.379428]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  384.384267]  ? __switch_to_asm+0x34/0x70
[  384.388325]  ? __switch_to_asm+0x34/0x70
[  384.392392]  ? zap_class+0x640/0x640
[  384.396107]  ? zap_class+0x640/0x640
[  384.399839]  ? __x64_sys_futex+0x53e/0x6a0
[  384.404097]  ? find_held_lock+0x36/0x1c0
[  384.408239]  ? handle_mm_fault+0x42a/0xc70
[  384.412509]  ? lock_downgrade+0x900/0x900
[  384.416649]  ? check_preemption_disabled+0x48/0x280
[  384.421663]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  384.426614]  ? kasan_check_read+0x11/0x20
[  384.430775]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.436056]  ? rcu_softirq_qs+0x20/0x20
[  384.440027]  ? trace_hardirqs_off_caller+0x310/0x310
[  384.445142]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  384.450677]  ? sync_mm_rss+0x9a/0x1c0
[  384.454480]  handle_mm_fault+0x54f/0xc70
[  384.458541]  ? __handle_mm_fault+0x5be0/0x5be0
[  384.463130]  ? find_vma+0x34/0x190
[  384.466706]  __do_page_fault+0x5e8/0xe60
[  384.470790]  ? trace_hardirqs_off+0xb8/0x310
[  384.475225]  do_page_fault+0xf2/0x7e0
[  384.479025]  ? vmalloc_sync_all+0x30/0x30
[  384.483171]  ? error_entry+0x70/0xd0
[  384.486900]  ? trace_hardirqs_off_caller+0xbb/0x310
[  384.491913]  ? trace_hardirqs_on_caller+0xc0/0x310
[  384.496840]  ? syscall_return_slowpath+0x5e0/0x5e0
[  384.501767]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.506608]  ? trace_hardirqs_on_caller+0x310/0x310
[  384.511648]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  384.517114]  ? prepare_exit_to_usermode+0x291/0x3b0
[  384.522146]  ? page_fault+0x8/0x30
[  384.525702]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  384.530547]  ? page_fault+0x8/0x30
[  384.534097]  page_fault+0x1e/0x30
[  384.537554] RIP: 0033:0x45ddf3
[  384.540765] Code: Bad RIP value.
[  384.544119] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  384.549486] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  384.556750] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  384.564014] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  384.571277] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  384.578537] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  384.585844] warn_alloc_show_mem: 1 callbacks suppressed
[  384.585855] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  384.585857] Mem-Info:
[  384.585886] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  384.585886]  active_file:17 inactive_file:17 isolated_file:0
[  384.585886]  unevictable:0 dirty:4 writeback:0 unstable:0
[  384.585886]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  384.585886]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  384.585886]  free:13550 free_pcp:124 free_cma:0
[  384.591223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  384.598493] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  384.600889] Call Trace:
[  384.633938] 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
[  384.643275]  <IRQ>
[  384.671008] lowmem_reserve[]: 0 2818 6321 6321
[  384.673602]  dump_stack+0x244/0x39d
[  384.699688] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  384.701832]  ? dump_stack_print_info.cold.1+0x20/0x20
[  384.706388] lowmem_reserve[]: 0 0 3503 3503
[  384.710031]  warn_alloc.cold.116+0xb7/0x1bd
[  384.737327] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  384.742507]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  384.746799] lowmem_reserve[]: 0 0 0 0
[  384.751129]  ? lock_downgrade+0x900/0x900
[  384.780001] 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
[  384.784855]  ? trace_hardirqs_off+0xb8/0x310
[  384.788659] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  384.792808]  ? trace_hardirqs_off+0xb8/0x310
[  384.806324] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  384.810727]  __alloc_pages_slowpath+0x2651/0x2de0
[  384.825439] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  384.829883]  ? warn_alloc+0x120/0x120
[  384.844584] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  384.849411]  ? print_usage_bug+0xc0/0xc0
[  384.858220] 1360 total pagecache pages
[  384.862010]  ? warn_alloc+0x120/0x120
[  384.870569] 0 pages in swap cache
[  384.874616]  ? warn_alloc+0x120/0x120
[  384.878482] Swap cache stats: add 0, delete 0, find 0/0
[  384.882271]  ? print_usage_bug+0xc0/0xc0
[  384.885719] Free swap  = 0kB
[  384.889512]  ? kvm_clock_read+0x18/0x30
[  384.894847] Total swap = 0kB
[  384.898910]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  384.898925]  ? print_usage_bug+0xc0/0xc0
[  384.901924] 1965979 pages RAM
[  384.905889]  ? __lock_acquire+0x62f/0x4c20
[  384.908889] 0 pages HighMem/MovableOnly
[  384.913918]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  384.917954] 342854 pages reserved
[  384.921059]  ? should_fail+0x22d/0xd01
[  384.925267] 0 pages cma reserved
[  384.929237]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  384.934822] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  384.938197]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.942218] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  384.945421]  ? __lock_acquire+0x62f/0x4c20
[  384.945439]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  384.951202] syz-fuzzer cpuset=/ mems_allowed=0
[  384.957709]  ? __lock_acquire+0x62f/0x4c20
[  384.957725]  ? should_fail+0x22d/0xd01
[  384.995171]  ? rcu_irq_exit+0x1a2/0x390
[  384.999179]  ? mark_held_locks+0x130/0x130
[  385.003421]  ? mark_held_locks+0x130/0x130
[  385.007712]  ? mark_held_locks+0xc7/0x130
[  385.011860]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  385.016884]  ? zap_class+0x640/0x640
[  385.020611]  ? print_usage_bug+0xc0/0xc0
[  385.024674]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.030212]  ? check_preemption_disabled+0x48/0x280
[  385.035236]  ? __lock_is_held+0xb5/0x140
[  385.039309]  __alloc_pages_nodemask+0xad8/0xea0
[  385.043971]  ? zap_class+0x640/0x640
[  385.047705]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  385.052731]  ? find_held_lock+0x36/0x1c0
[  385.056797]  ? ____cache_alloc_node+0x1c7/0x1e0
[  385.061492]  ? lock_downgrade+0x900/0x900
[  385.065644]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.071182]  cache_grow_begin+0xa5/0x8c0
[  385.075235]  ? do_raw_spin_unlock+0xa7/0x330
[  385.079887]  fallback_alloc+0x204/0x2e0
[  385.083876]  ____cache_alloc_node+0x1c7/0x1e0
[  385.088427]  kmem_cache_alloc_node+0xe3/0x730
[  385.092933]  ? ipv6_get_ifaddr+0x42e/0x620
[  385.097179]  __alloc_skb+0x119/0x770
[  385.100927]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.106206]  ? netdev_alloc_frag+0x1f0/0x1f0
[  385.110610]  ? lock_downgrade+0x900/0x900
[  385.114777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.120306]  ? refcount_sub_and_test_checked+0x203/0x310
[  385.125794]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  385.131290]  ? addrconf_rs_timer+0x690/0x690
[  385.135722]  ndisc_alloc_skb+0x144/0x340
[  385.139828]  ndisc_send_rs+0x331/0x6e0
[  385.143716]  addrconf_rs_timer+0x314/0x690
[  385.147952]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.152199]  call_timer_fn+0x272/0x920
[  385.156083]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.160311]  ? process_timeout+0x40/0x40
[  385.164377]  ? __run_timers+0x7da/0xc70
[  385.168352]  ? _raw_spin_unlock_irq+0x27/0x80
[  385.172842]  ? _raw_spin_unlock_irq+0x27/0x80
[  385.177349]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.181631]  ? lockdep_hardirqs_on+0x296/0x5b0
[  385.186212]  ? trace_hardirqs_on+0xbd/0x310
[  385.190530]  ? kasan_check_read+0x11/0x20
[  385.194674]  ? __run_timers+0x7da/0xc70
[  385.198664]  ? trace_hardirqs_off_caller+0x310/0x310
[  385.203762]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.208011]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  385.212287]  __run_timers+0x7e5/0xc70
[  385.216163]  ? timer_fixup_init+0x70/0x70
[  385.220318]  ? kasan_check_read+0x11/0x20
[  385.224459]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.229758]  ? rcu_softirq_qs+0x20/0x20
[  385.233726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.239260]  ? check_preemption_disabled+0x48/0x280
[  385.244294]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  385.249051]  ? retint_kernel+0x2d/0x2d
[  385.252936]  ? trace_hardirqs_on_caller+0xc0/0x310
[  385.257865]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  385.262615]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  385.268076]  ? zap_class+0x640/0x640
[  385.271787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.277320]  ? check_preemption_disabled+0x48/0x280
[  385.282337]  ? __lock_is_held+0xb5/0x140
[  385.286400]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.291936]  ? check_preemption_disabled+0x48/0x280
[  385.296966]  run_timer_softirq+0x52/0xb0
[  385.301024]  ? rcu_read_lock_sched_held+0x14f/0x180
[  385.306035]  __do_softirq+0x308/0xb7e
[  385.309833]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  385.314354]  ? lock_downgrade+0x900/0x900
[  385.318504]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  385.323612]  ? pvclock_read_flags+0x160/0x160
[  385.328105]  ? lapic_next_event+0x5a/0x90
[  385.332266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.337801]  ? kvm_clock_read+0x18/0x30
[  385.341803]  ? kvm_sched_clock_read+0x9/0x20
[  385.346226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.351759]  ? check_preemption_disabled+0x48/0x280
[  385.356777]  irq_exit+0x17f/0x1c0
[  385.360244]  smp_apic_timer_interrupt+0x1cb/0x760
[  385.365078]  ? smp_reschedule_interrupt+0x109/0x650
[  385.370090]  ? smp_call_function_single_interrupt+0x650/0x650
[  385.375966]  ? interrupt_entry+0xb5/0xc0
[  385.380022]  ? trace_hardirqs_off_caller+0xbb/0x310
[  385.385029]  ? trace_hardirqs_off_caller+0xbb/0x310
[  385.390038]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.394872]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.399916]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.404947]  ? task_prio+0x50/0x50
[  385.408529]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.414060]  ? check_preemption_disabled+0x48/0x280
[  385.419079]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.423920]  apic_timer_interrupt+0xf/0x20
[  385.428147]  </IRQ>
[  385.430383] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  385.435350] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  385.454253] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  385.461957] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  385.469223] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  385.476487] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  385.483746] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  385.491023] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  385.498319]  skb_clone+0x1bb/0x500
[  385.501855]  ? skb_split+0x11e0/0x11e0
[  385.505742]  ? preempt_notifier_register+0x200/0x200
[  385.510878]  ? __switch_to_asm+0x34/0x70
[  385.514962]  ? __switch_to_asm+0x34/0x70
[  385.519031]  ? __switch_to_asm+0x40/0x70
[  385.523098]  ? __switch_to_asm+0x34/0x70
[  385.527184]  ? __switch_to_asm+0x40/0x70
[  385.531274]  ? __switch_to_asm+0x40/0x70
[  385.535354]  ? __switch_to_asm+0x34/0x70
[  385.539439]  ? __switch_to_asm+0x34/0x70
[  385.543492]  ? __switch_to_asm+0x40/0x70
[  385.547557]  ? __switch_to_asm+0x34/0x70
[  385.551638]  bpf_clone_redirect+0xb9/0x490
[  385.555880]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  385.560894]  ? __sched_text_start+0x8/0x8
[  385.565055]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  385.569836]  ? find_held_lock+0x36/0x1c0
[  385.573904]  ? lock_acquire+0x1ed/0x520
[  385.577878]  ? bpf_test_run+0x3ee/0x7a0
[  385.581888]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.587431]  ? check_preemption_disabled+0x48/0x280
[  385.592467]  ? kasan_check_read+0x11/0x20
[  385.596614]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.601920]  ? rcu_softirq_qs+0x20/0x20
[  385.605894]  ? preempt_schedule+0x4d/0x60
[  385.610041]  ? ___preempt_schedule+0x16/0x18
[  385.614474]  ? bpf_test_run+0x271/0x7a0
[  385.618464]  ? netlink_diag_dump+0x2a0/0x2a0
[  385.622877]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.628416]  ? bpf_test_init.isra.10+0x70/0x100
[  385.633117]  ? bpf_prog_test_run_skb+0x762/0xd60
[  385.637890]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  385.642740]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  385.648277]  ? fput+0x130/0x1a0
[  385.651563]  ? __bpf_prog_get+0x9b/0x290
[  385.655629]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  385.660492]  ? bpf_prog_test_run+0x130/0x1a0
[  385.664903]  ? __x64_sys_bpf+0x3d8/0x520
[  385.668966]  ? bpf_prog_get+0x20/0x20
[  385.672788]  ? do_syscall_64+0x1b9/0x820
[  385.676883]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  385.682251]  ? syscall_return_slowpath+0x5e0/0x5e0
[  385.687193]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.692040]  ? trace_hardirqs_on_caller+0x310/0x310
[  385.697058]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  385.702077]  ? prepare_exit_to_usermode+0x291/0x3b0
[  385.707098]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  385.711976]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  385.717358] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  385.717468] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  385.724293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  385.724298] Call Trace:
[  385.724305]  <IRQ>
[  385.724322]  dump_stack+0x244/0x39d
[  385.724342]  ? dump_stack_print_info.cold.1+0x20/0x20
[  385.730975] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  385.740194]  warn_alloc.cold.116+0xb7/0x1bd
[  385.742748] syz-executor4 cpuset=syz4 mems_allowed=0
[  385.744934]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  385.778427]  ? lock_downgrade+0x900/0x900
[  385.782582]  ? trace_hardirqs_off+0xb8/0x310
[  385.787013]  ? trace_hardirqs_off+0xb8/0x310
[  385.791430]  __alloc_pages_slowpath+0x2651/0x2de0
[  385.796308]  ? warn_alloc+0x120/0x120
[  385.800118]  ? warn_alloc+0x120/0x120
[  385.803947]  ? __bfs+0x321/0x780
[  385.807324]  ? print_usage_bug+0xc0/0xc0
[  385.811379]  ? lockdep_on+0x50/0x50
[  385.815002]  ? print_bfs_bug+0x80/0x80
[  385.818903]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  385.824439]  ? should_fail+0x22d/0xd01
[  385.828322]  ? __bfs+0x321/0x780
[  385.831691]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.836792]  ? __lock_acquire+0x62f/0x4c20
[  385.841030]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  385.846133]  ? __lock_acquire+0x2aff/0x4c20
[  385.850449]  ? should_fail+0x22d/0xd01
[  385.854349]  ? mark_held_locks+0x130/0x130
[  385.858585]  ? mark_held_locks+0x130/0x130
[  385.862822]  ? kasan_check_read+0x11/0x20
[  385.866970]  ? __lock_acquire+0x2aff/0x4c20
[  385.871288]  ? zap_class+0x640/0x640
[  385.875003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.880544]  ? check_preemption_disabled+0x48/0x280
[  385.885565]  ? __lock_is_held+0xb5/0x140
[  385.889625]  __alloc_pages_nodemask+0xad8/0xea0
[  385.894290]  ? zap_class+0x640/0x640
[  385.898009]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  385.903037]  ? find_held_lock+0x36/0x1c0
[  385.907116]  ? ____cache_alloc_node+0x1c7/0x1e0
[  385.911804]  ? lock_downgrade+0x900/0x900
[  385.915955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  385.921540]  cache_grow_begin+0xa5/0x8c0
[  385.925614]  ? do_raw_spin_unlock+0xa7/0x330
[  385.930031]  fallback_alloc+0x204/0x2e0
[  385.934011]  ____cache_alloc_node+0x1c7/0x1e0
[  385.938506]  kmem_cache_alloc_node+0xe3/0x730
[  385.943011]  ? do_raw_spin_unlock+0xa7/0x330
[  385.947415]  ? do_raw_spin_trylock+0x270/0x270
[  385.952045]  __alloc_skb+0x119/0x770
[  385.955763]  ? netdev_alloc_frag+0x1f0/0x1f0
[  385.960171]  ? atomic_notifier_call_chain+0xc6/0x190
[  385.965302]  ? lock_downgrade+0x900/0x900
[  385.969446]  ? check_preemption_disabled+0x48/0x280
[  385.974463]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  385.979383]  ? kasan_check_read+0x11/0x20
[  385.983524]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  385.988793]  ? rcu_softirq_qs+0x20/0x20
[  385.992785]  ? kasan_check_read+0x11/0x20
[  385.996932]  ? do_raw_write_trylock+0x270/0x270
[  386.001605]  __neigh_notify+0x8c/0x160
[  386.005510]  ? neigh_connected_output+0x780/0x780
[  386.010349]  neigh_timer_handler+0x6cb/0xdf0
[  386.014750]  ? check_preemption_disabled+0x48/0x280
[  386.019762]  ? neigh_periodic_work+0xc60/0xc60
[  386.024370]  ? __lock_is_held+0xb5/0x140
[  386.028472]  call_timer_fn+0x272/0x920
[  386.032428]  ? neigh_periodic_work+0xc60/0xc60
[  386.037025]  ? process_timeout+0x40/0x40
[  386.041089]  ? mark_held_locks+0xc7/0x130
[  386.045238]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.049765]  ? _raw_spin_unlock_irq+0x27/0x80
[  386.054249]  ? neigh_periodic_work+0xc60/0xc60
[  386.058885]  ? lockdep_hardirqs_on+0x296/0x5b0
[  386.063489]  ? trace_hardirqs_on+0xbd/0x310
[  386.067830]  ? kasan_check_read+0x11/0x20
[  386.071981]  ? __run_timers+0x7da/0xc70
[  386.075976]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.081120]  ? neigh_periodic_work+0xc60/0xc60
[  386.085717]  __run_timers+0x7e5/0xc70
[  386.089567]  ? timer_fixup_init+0x70/0x70
[  386.093781]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  386.098792]  ? zap_class+0x640/0x640
[  386.102690]  ? print_usage_bug+0xc0/0xc0
[  386.106751]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  386.111945]  ? find_held_lock+0x36/0x1c0
[  386.116044]  ? zap_class+0x640/0x640
[  386.119762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.125293]  ? check_preemption_disabled+0x48/0x280
[  386.130313]  ? __lock_is_held+0xb5/0x140
[  386.134367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.139904]  ? check_preemption_disabled+0x48/0x280
[  386.144917]  run_timer_softirq+0x52/0xb0
[  386.148970]  ? rcu_read_lock_sched_held+0x14f/0x180
[  386.153979]  __do_softirq+0x308/0xb7e
[  386.157799]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  386.162285]  ? lock_downgrade+0x900/0x900
[  386.166433]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  386.171538]  ? pvclock_read_flags+0x160/0x160
[  386.176042]  ? lapic_next_event+0x5a/0x90
[  386.180185]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.185747]  ? kvm_clock_read+0x18/0x30
[  386.189755]  ? kvm_sched_clock_read+0x9/0x20
[  386.194181]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.199711]  ? check_preemption_disabled+0x48/0x280
[  386.204725]  irq_exit+0x17f/0x1c0
[  386.208187]  smp_apic_timer_interrupt+0x1cb/0x760
[  386.213019]  ? smp_reschedule_interrupt+0x109/0x650
[  386.218029]  ? smp_call_function_single_interrupt+0x650/0x650
[  386.223913]  ? interrupt_entry+0xb5/0xc0
[  386.227973]  ? trace_hardirqs_off_caller+0xbb/0x310
[  386.232979]  ? trace_hardirqs_off_caller+0xbb/0x310
[  386.237989]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.242828]  ? trace_hardirqs_on_caller+0x310/0x310
[  386.247836]  ? trace_hardirqs_on_caller+0x310/0x310
[  386.252844]  ? task_prio+0x50/0x50
[  386.256377]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.261911]  ? check_preemption_disabled+0x48/0x280
[  386.266926]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.271772]  apic_timer_interrupt+0xf/0x20
[  386.275997]  </IRQ>
[  386.278231] RIP: 0010:lock_acquire+0x268/0x520
[  386.282837] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  386.301732] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  386.309431] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  386.316695] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  386.323956] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  386.331217] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  386.338475] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  386.345755]  ? lruvec_lru_size+0x450/0x450
[  386.349984]  ? kasan_check_read+0x11/0x20
[  386.354134]  ? lock_release+0xa00/0xa00
[  386.358108]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  386.363081]  down_read_trylock+0xda/0x140
[  386.367239]  ? shrink_slab+0x207/0x8c0
[  386.371120]  ? downgrade_write+0x270/0x270
[  386.375362]  shrink_slab+0x207/0x8c0
[  386.379069]  ? shrink_active_list+0x1f00/0x1f00
[  386.383739]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  386.389357]  ? __lock_acquire+0x62f/0x4c20
[  386.393607]  ? percpu_ref_get_many+0x240/0x240
[  386.398195]  ? print_usage_bug+0xc0/0xc0
[  386.402257]  shrink_node+0x431/0x16b0
[  386.406063]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  386.411352]  ? shrink_node_memcg+0x18f0/0x18f0
[  386.415928]  ? kvm_clock_read+0x18/0x30
[  386.419899]  ? ktime_get+0x2c1/0x400
[  386.423612]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  386.428136]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  386.433696]  ? __cpuset_node_allowed+0x19b/0x660
[  386.438455]  ? mark_held_locks+0x130/0x130
[  386.442719]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  386.448456]  ? zap_class+0x640/0x640
[  386.452173]  do_try_to_free_pages+0x3e7/0x1290
[  386.456748]  ? zap_class+0x640/0x640
[  386.460474]  ? shrink_node+0x16b0/0x16b0
[  386.464531]  ? __lock_is_held+0xb5/0x140
[  386.468600]  try_to_free_pages+0x4d0/0xb90
[  386.472831]  ? do_try_to_free_pages+0x1290/0x1290
[  386.477691]  ? lock_acquire+0x1ed/0x520
[  386.481659]  ? set_page_refcounted+0x280/0x280
[  386.486272]  ? lock_release+0xa00/0xa00
[  386.490246]  ? _raw_spin_unlock_irq+0x60/0x80
[  386.494749]  ? psi_memstall_enter+0x240/0x2b0
[  386.499236]  ? psi_memstall_tick+0x230/0x230
[  386.503663]  __alloc_pages_slowpath+0xa48/0x2de0
[  386.508489]  ? warn_alloc+0x120/0x120
[  386.512286]  ? mark_held_locks+0x130/0x130
[  386.516524]  ? find_get_entry+0xaae/0x1120
[  386.520781]  ? filemap_map_pages+0x1a20/0x1a20
[  386.525386]  ? zap_class+0x640/0x640
[  386.529103]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.534655]  ? check_preemption_disabled+0x48/0x280
[  386.539669]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.545237]  ? should_fail+0x22d/0xd01
[  386.549134]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  386.554237]  ? zap_class+0x640/0x640
[  386.557968]  ? __lock_is_held+0xb5/0x140
[  386.562033]  ? mark_held_locks+0x130/0x130
[  386.566299]  ? lock_release+0xa00/0xa00
[  386.570275]  ? perf_trace_sched_process_exec+0x860/0x860
[  386.575721]  ? xa_load+0x2ba/0x460
[  386.579275]  ? lock_downgrade+0x900/0x900
[  386.583425]  ? __might_sleep+0x95/0x190
[  386.587401]  __alloc_pages_nodemask+0xad8/0xea0
[  386.592072]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  386.597081]  ? __page_cache_alloc+0x191/0x5c0
[  386.601612]  ? xa_load+0x2e1/0x460
[  386.605189]  ? xa_clear_mark+0x40/0x40
[  386.609074]  ? zap_class+0x640/0x640
[  386.612785]  ? zap_class+0x640/0x640
[  386.616505]  ? zap_class+0x640/0x640
[  386.620225]  ? __do_page_cache_readahead+0x663/0x810
[  386.625329]  ? find_held_lock+0x36/0x1c0
[  386.629404]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  386.634962]  alloc_pages_current+0x173/0x350
[  386.639372]  __page_cache_alloc+0x38c/0x5c0
[  386.643686]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  386.648606]  ? kasan_check_read+0x11/0x20
[  386.652765]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.658039]  ? generic_perform_write+0x6a0/0x6a0
[  386.662808]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.668341]  ? check_preemption_disabled+0x48/0x280
[  386.673363]  filemap_fault+0x1595/0x25f0
[  386.677438]  ? __lock_page_or_retry+0xa00/0xa00
[  386.682109]  ? mark_held_locks+0x130/0x130
[  386.686366]  ? filemap_map_pages+0xd6b/0x1a20
[  386.690889]  ? lock_downgrade+0x900/0x900
[  386.695059]  ? check_preemption_disabled+0x48/0x280
[  386.700080]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  386.705023]  ? kasan_check_read+0x11/0x20
[  386.709167]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.714442]  ? rcu_softirq_qs+0x20/0x20
[  386.718426]  ? filemap_map_pages+0xd92/0x1a20
[  386.722936]  ? find_get_entries_tag+0x1400/0x1400
[  386.727779]  ? debug_object_destroy+0x2b0/0x2b0
[  386.732465]  ? lock_pi_update_atomic+0x150/0x150
[  386.737216]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.742759]  ? lock_acquire+0x1ed/0x520
[  386.746730]  ? ext4_filemap_fault+0x7a/0xad
[  386.751054]  ? lock_release+0xa00/0xa00
[  386.755022]  ? perf_trace_sched_process_exec+0x860/0x860
[  386.760471]  ? print_usage_bug+0xc0/0xc0
[  386.764545]  ? print_usage_bug+0xc0/0xc0
[  386.768629]  ? down_read+0x8d/0x120
[  386.772253]  ? ext4_filemap_fault+0x7a/0xad
[  386.776600]  ? __down_interruptible+0x700/0x700
[  386.781316]  ext4_filemap_fault+0x82/0xad
[  386.785461]  __do_fault+0x100/0x6b0
[  386.789103]  ? find_held_lock+0x36/0x1c0
[  386.793203]  ? pmd_devmap_trans_unstable+0x220/0x220
[  386.798303]  ? mark_held_locks+0x130/0x130
[  386.802548]  ? mark_held_locks+0x130/0x130
[  386.806785]  ? kasan_check_read+0x11/0x20
[  386.810928]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  386.816460]  __handle_mm_fault+0x3ea0/0x5be0
[  386.820887]  ? perf_trace_lock+0x7a0/0x7a0
[  386.825175]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  386.830058]  ? __switch_to_asm+0x34/0x70
[  386.834115]  ? __switch_to_asm+0x34/0x70
[  386.838194]  ? zap_class+0x640/0x640
[  386.841906]  ? zap_class+0x640/0x640
[  386.845621]  ? __x64_sys_futex+0x53e/0x6a0
[  386.849853]  ? find_held_lock+0x36/0x1c0
[  386.853917]  ? handle_mm_fault+0x42a/0xc70
[  386.858150]  ? lock_downgrade+0x900/0x900
[  386.862341]  ? check_preemption_disabled+0x48/0x280
[  386.867358]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  386.872304]  ? kasan_check_read+0x11/0x20
[  386.876448]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  386.881760]  ? rcu_softirq_qs+0x20/0x20
[  386.885766]  ? trace_hardirqs_off_caller+0x310/0x310
[  386.890870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  386.896407]  ? sync_mm_rss+0x9a/0x1c0
[  386.900239]  handle_mm_fault+0x54f/0xc70
[  386.904298]  ? __handle_mm_fault+0x5be0/0x5be0
[  386.908899]  ? find_vma+0x34/0x190
[  386.912448]  __do_page_fault+0x5e8/0xe60
[  386.916521]  ? trace_hardirqs_off+0xb8/0x310
[  386.920949]  do_page_fault+0xf2/0x7e0
[  386.924759]  ? vmalloc_sync_all+0x30/0x30
[  386.928928]  ? error_entry+0x70/0xd0
[  386.932645]  ? trace_hardirqs_off_caller+0xbb/0x310
[  386.937658]  ? trace_hardirqs_on_caller+0xc0/0x310
[  386.942604]  ? syscall_return_slowpath+0x5e0/0x5e0
[  386.947529]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.952545]  ? trace_hardirqs_on_caller+0x310/0x310
[  386.957564]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  386.963022]  ? prepare_exit_to_usermode+0x291/0x3b0
[  386.968035]  ? page_fault+0x8/0x30
[  386.971593]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  386.976449]  ? page_fault+0x8/0x30
[  386.980020]  page_fault+0x1e/0x30
[  386.983471] RIP: 0033:0x45ddf3
[  386.986698] Code: Bad RIP value.
[  386.990067] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  386.995449] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  387.002782] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  387.010042] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  387.017306] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  387.024565] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  387.031851] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  387.031856] warn_alloc_show_mem: 1 callbacks suppressed
[  387.031863] Mem-Info:
[  387.039137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  387.044501] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  387.044501]  active_file:17 inactive_file:17 isolated_file:0
[  387.044501]  unevictable:0 dirty:4 writeback:0 unstable:0
[  387.044501]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  387.044501]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  387.044501]  free:13550 free_pcp:124 free_cma:0
[  387.046868] Call Trace:
[  387.056329] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  387.089493]  <IRQ>
[  387.092096] 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
[  387.119871]  dump_stack+0x244/0x39d
[  387.121993] lowmem_reserve[]: 0 2818 6321 6321
[  387.148088]  ? dump_stack_print_info.cold.1+0x20/0x20
[  387.151703] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  387.156294]  warn_alloc.cold.116+0xb7/0x1bd
[  387.161466] lowmem_reserve[]: 0 0 3503 3503
[  387.188808]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  387.193105] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  387.197425]  ? lock_downgrade+0x900/0x900
[  387.202241] lowmem_reserve[]: 0 0 0 0
[  387.231136]  ? trace_hardirqs_off+0xb8/0x310
[  387.235250] 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
[  387.239064]  ? trace_hardirqs_off+0xb8/0x310
[  387.243458] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  387.256992]  __alloc_pages_slowpath+0x2651/0x2de0
[  387.261369] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  387.276136]  ? warn_alloc+0x120/0x120
[  387.280934] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  387.295670]  ? nohz_balance_enter_idle+0x6c0/0x6c0
[  387.299462] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  387.308293]  ? warn_alloc+0x120/0x120
[  387.313194] 1360 total pagecache pages
[  387.321766]  ? warn_alloc+0x120/0x120
[  387.325542] 0 pages in swap cache
[  387.329410]  ? print_usage_bug+0xc0/0xc0
[  387.333181] Swap cache stats: add 0, delete 0, find 0/0
[  387.336620]  ? print_usage_bug+0xc0/0xc0
[  387.340651] Free swap  = 0kB
[  387.346005]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.350031] Total swap = 0kB
[  387.353037]  ? should_fail+0x22d/0xd01
[  387.358542] 1965979 pages RAM
[  387.361548]  ? __lock_acquire+0x62f/0x4c20
[  387.365398] 0 pages HighMem/MovableOnly
[  387.365406] 342854 pages reserved
[  387.368542]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  387.372778] 0 pages cma reserved
[  387.376739]  ? __lock_acquire+0x62f/0x4c20
[  387.380409] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  387.385270]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  387.388611] syz-fuzzer cpuset=/ mems_allowed=0
[  387.392856]  ? __lock_acquire+0x62f/0x4c20
[  387.392886]  ? should_fail+0x22d/0xd01
[  387.420911]  ? mark_held_locks+0x130/0x130
[  387.425161]  ? mark_held_locks+0x130/0x130
[  387.429433]  ? zap_class+0x640/0x640
[  387.433144]  ? print_usage_bug+0xc0/0xc0
[  387.437210]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.442741]  ? check_preemption_disabled+0x48/0x280
[  387.447765]  ? __lock_is_held+0xb5/0x140
[  387.451840]  __alloc_pages_nodemask+0xad8/0xea0
[  387.456509]  ? zap_class+0x640/0x640
[  387.460227]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  387.465253]  ? find_held_lock+0x36/0x1c0
[  387.469329]  ? ____cache_alloc_node+0x1c7/0x1e0
[  387.474021]  ? lock_downgrade+0x900/0x900
[  387.478179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.483736]  cache_grow_begin+0xa5/0x8c0
[  387.487798]  ? do_raw_spin_unlock+0xa7/0x330
[  387.492214]  fallback_alloc+0x204/0x2e0
[  387.496194]  ____cache_alloc_node+0x1c7/0x1e0
[  387.500712]  kmem_cache_alloc_node+0xe3/0x730
[  387.505206]  ? ipv6_get_ifaddr+0x42e/0x620
[  387.509454]  __alloc_skb+0x119/0x770
[  387.513166]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.518445]  ? netdev_alloc_frag+0x1f0/0x1f0
[  387.522863]  ? lock_downgrade+0x900/0x900
[  387.527026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.532563]  ? refcount_sub_and_test_checked+0x203/0x310
[  387.538015]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  387.543476]  ? addrconf_rs_timer+0x690/0x690
[  387.547893]  ndisc_alloc_skb+0x144/0x340
[  387.551972]  ndisc_send_rs+0x331/0x6e0
[  387.555866]  addrconf_rs_timer+0x314/0x690
[  387.560098]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.564358]  call_timer_fn+0x272/0x920
[  387.568244]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.572481]  ? process_timeout+0x40/0x40
[  387.576549]  ? __run_timers+0x7da/0xc70
[  387.580523]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.585014]  ? _raw_spin_unlock_irq+0x27/0x80
[  387.589507]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.593749]  ? lockdep_hardirqs_on+0x296/0x5b0
[  387.598335]  ? trace_hardirqs_on+0xbd/0x310
[  387.602658]  ? kasan_check_read+0x11/0x20
[  387.606802]  ? __run_timers+0x7da/0xc70
[  387.610791]  ? trace_hardirqs_off_caller+0x310/0x310
[  387.615915]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  387.620151]  __run_timers+0x7e5/0xc70
[  387.623963]  ? timer_fixup_init+0x70/0x70
[  387.628109]  ? kasan_check_read+0x11/0x20
[  387.632260]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  387.637535]  ? rcu_softirq_qs+0x20/0x20
[  387.641507]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.647043]  ? check_preemption_disabled+0x48/0x280
[  387.652063]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  387.656818]  ? retint_kernel+0x2d/0x2d
[  387.660703]  ? trace_hardirqs_on_caller+0xc0/0x310
[  387.665631]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  387.670388]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  387.675848]  ? zap_class+0x640/0x640
[  387.679565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.685099]  ? check_preemption_disabled+0x48/0x280
[  387.690139]  ? __lock_is_held+0xb5/0x140
[  387.694204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.699753]  ? check_preemption_disabled+0x48/0x280
[  387.704783]  run_timer_softirq+0x52/0xb0
[  387.708862]  ? rcu_read_lock_sched_held+0x14f/0x180
[  387.713879]  __do_softirq+0x308/0xb7e
[  387.717695]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  387.722188]  ? lock_downgrade+0x900/0x900
[  387.726340]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  387.731470]  ? pvclock_read_flags+0x160/0x160
[  387.735970]  ? lapic_next_event+0x5a/0x90
[  387.740121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.745687]  ? kvm_clock_read+0x18/0x30
[  387.749657]  ? kvm_sched_clock_read+0x9/0x20
[  387.754064]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.759598]  ? check_preemption_disabled+0x48/0x280
[  387.764635]  irq_exit+0x17f/0x1c0
[  387.768100]  smp_apic_timer_interrupt+0x1cb/0x760
[  387.772944]  ? smp_reschedule_interrupt+0x109/0x650
[  387.777957]  ? smp_call_function_single_interrupt+0x650/0x650
[  387.783832]  ? interrupt_entry+0xb5/0xc0
[  387.787896]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.792918]  ? trace_hardirqs_off_caller+0xbb/0x310
[  387.797927]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.802765]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.807776]  ? trace_hardirqs_on_caller+0x310/0x310
[  387.812803]  ? task_prio+0x50/0x50
[  387.816342]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  387.821875]  ? check_preemption_disabled+0x48/0x280
[  387.826918]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  387.831766]  apic_timer_interrupt+0xf/0x20
[  387.835987]  </IRQ>
[  387.838226] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  387.843168] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  387.862060] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  387.869781] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  387.877045] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  387.884308] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  387.891570] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  387.898848] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  387.906157]  skb_clone+0x1bb/0x500
[  387.909699]  ? skb_split+0x11e0/0x11e0
[  387.913588]  ? preempt_notifier_register+0x200/0x200
[  387.918690]  ? __switch_to_asm+0x34/0x70
[  387.922749]  ? __switch_to_asm+0x34/0x70
[  387.926813]  ? __switch_to_asm+0x40/0x70
[  387.930871]  ? __switch_to_asm+0x34/0x70
[  387.934931]  ? __switch_to_asm+0x40/0x70
[  387.938990]  ? __switch_to_asm+0x40/0x70
[  387.943046]  ? __switch_to_asm+0x34/0x70
[  387.947107]  ? __switch_to_asm+0x34/0x70
[  387.951175]  ? __switch_to_asm+0x40/0x70
[  387.955231]  ? __switch_to_asm+0x34/0x70
[  387.959294]  bpf_clone_redirect+0xb9/0x490
[  387.963532]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  387.968550]  ? __sched_text_start+0x8/0x8
[  387.972697]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  387.977469]  ? find_held_lock+0x36/0x1c0
[  387.981535]  ? lock_acquire+0x1ed/0x520
[  387.985539]  ? bpf_test_run+0x3ee/0x7a0
[  387.989514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  387.995047]  ? check_preemption_disabled+0x48/0x280
[  388.000080]  ? kasan_check_read+0x11/0x20
[  388.004238]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.009510]  ? rcu_softirq_qs+0x20/0x20
[  388.013528]  ? preempt_schedule+0x4d/0x60
[  388.017693]  ? ___preempt_schedule+0x16/0x18
[  388.022105]  ? bpf_test_run+0x271/0x7a0
[  388.026099]  ? netlink_diag_dump+0x2a0/0x2a0
[  388.030550]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.036095]  ? bpf_test_init.isra.10+0x70/0x100
[  388.040775]  ? bpf_prog_test_run_skb+0x762/0xd60
[  388.045541]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  388.050387]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  388.055928]  ? fput+0x130/0x1a0
[  388.059213]  ? __bpf_prog_get+0x9b/0x290
[  388.063282]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  388.068120]  ? bpf_prog_test_run+0x130/0x1a0
[  388.072534]  ? __x64_sys_bpf+0x3d8/0x520
[  388.076591]  ? bpf_prog_get+0x20/0x20
[  388.080474]  ? do_syscall_64+0x1b9/0x820
[  388.084541]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  388.089920]  ? syscall_return_slowpath+0x5e0/0x5e0
[  388.094863]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.099705]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.104719]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  388.109764]  ? prepare_exit_to_usermode+0x291/0x3b0
[  388.114779]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.119622]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  388.125002] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  388.125088] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  388.131920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  388.131925] Call Trace:
[  388.131930]  <IRQ>
[  388.131944]  dump_stack+0x244/0x39d
[  388.131964]  ? dump_stack_print_info.cold.1+0x20/0x20
[  388.138507] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  388.147848]  warn_alloc.cold.116+0xb7/0x1bd
[  388.150402] syz-executor4 cpuset=syz4 mems_allowed=0
[  388.152542]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  388.186028]  ? lock_downgrade+0x900/0x900
[  388.190183]  ? trace_hardirqs_off+0xb8/0x310
[  388.194609]  ? trace_hardirqs_off+0xb8/0x310
[  388.199036]  __alloc_pages_slowpath+0x2651/0x2de0
[  388.203906]  ? warn_alloc+0x120/0x120
[  388.207744]  ? warn_alloc+0x120/0x120
[  388.211549]  ? warn_alloc+0x120/0x120
[  388.215362]  ? print_usage_bug+0xc0/0xc0
[  388.219435]  ? enqueue_hrtimer+0x1a5/0x560
[  388.223684]  ? print_usage_bug+0xc0/0xc0
[  388.227742]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  388.232950]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.238498]  ? should_fail+0x22d/0xd01
[  388.242390]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.247493]  ? __lock_acquire+0x62f/0x4c20
[  388.251730]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.256854]  ? __lock_acquire+0x62f/0x4c20
[  388.261085]  ? should_fail+0x22d/0xd01
[  388.264989]  ? mark_held_locks+0x130/0x130
[  388.269238]  ? mark_held_locks+0x130/0x130
[  388.273492]  ? zap_class+0x640/0x640
[  388.277202]  ? print_usage_bug+0xc0/0xc0
[  388.281272]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.286831]  ? check_preemption_disabled+0x48/0x280
[  388.291854]  ? __lock_is_held+0xb5/0x140
[  388.295921]  __alloc_pages_nodemask+0xad8/0xea0
[  388.300605]  ? zap_class+0x640/0x640
[  388.304322]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  388.309340]  ? find_held_lock+0x36/0x1c0
[  388.313428]  ? ____cache_alloc_node+0x1c7/0x1e0
[  388.318135]  ? lock_downgrade+0x900/0x900
[  388.322287]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.327834]  cache_grow_begin+0xa5/0x8c0
[  388.331893]  ? do_raw_spin_unlock+0xa7/0x330
[  388.336329]  fallback_alloc+0x204/0x2e0
[  388.340307]  ____cache_alloc_node+0x1c7/0x1e0
[  388.344835]  kmem_cache_alloc_node+0xe3/0x730
[  388.349338]  ? ipv6_get_ifaddr+0x42e/0x620
[  388.353574]  __alloc_skb+0x119/0x770
[  388.357280]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  388.362569]  ? netdev_alloc_frag+0x1f0/0x1f0
[  388.366968]  ? lock_downgrade+0x900/0x900
[  388.371130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.376659]  ? refcount_sub_and_test_checked+0x203/0x310
[  388.382100]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  388.387546]  ? addrconf_rs_timer+0x690/0x690
[  388.391994]  ndisc_alloc_skb+0x144/0x340
[  388.396053]  ndisc_send_rs+0x331/0x6e0
[  388.399960]  addrconf_rs_timer+0x314/0x690
[  388.404211]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.408477]  call_timer_fn+0x272/0x920
[  388.412380]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.416653]  ? process_timeout+0x40/0x40
[  388.420744]  ? mark_held_locks+0xc7/0x130
[  388.424886]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.429379]  ? _raw_spin_unlock_irq+0x27/0x80
[  388.433869]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.438104]  ? lockdep_hardirqs_on+0x296/0x5b0
[  388.442688]  ? trace_hardirqs_on+0xbd/0x310
[  388.447006]  ? kasan_check_read+0x11/0x20
[  388.451152]  ? __run_timers+0x7da/0xc70
[  388.455146]  ? trace_hardirqs_off_caller+0x310/0x310
[  388.460275]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  388.464502]  __run_timers+0x7e5/0xc70
[  388.468315]  ? timer_fixup_init+0x70/0x70
[  388.472458]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  388.477477]  ? zap_class+0x640/0x640
[  388.481190]  ? print_usage_bug+0xc0/0xc0
[  388.485249]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  388.490440]  ? find_held_lock+0x36/0x1c0
[  388.494517]  ? zap_class+0x640/0x640
[  388.498234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.503771]  ? check_preemption_disabled+0x48/0x280
[  388.508795]  ? __lock_is_held+0xb5/0x140
[  388.512855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.518389]  ? check_preemption_disabled+0x48/0x280
[  388.523407]  run_timer_softirq+0x52/0xb0
[  388.527478]  ? rcu_read_lock_sched_held+0x14f/0x180
[  388.532505]  __do_softirq+0x308/0xb7e
[  388.536305]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  388.540791]  ? lock_downgrade+0x900/0x900
[  388.544940]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  388.550045]  ? pvclock_read_flags+0x160/0x160
[  388.554541]  ? lapic_next_event+0x5a/0x90
[  388.558688]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.564242]  ? kvm_clock_read+0x18/0x30
[  388.568213]  ? kvm_sched_clock_read+0x9/0x20
[  388.572630]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.578196]  ? check_preemption_disabled+0x48/0x280
[  388.583216]  irq_exit+0x17f/0x1c0
[  388.586663]  smp_apic_timer_interrupt+0x1cb/0x760
[  388.591532]  ? smp_reschedule_interrupt+0x109/0x650
[  388.596556]  ? smp_call_function_single_interrupt+0x650/0x650
[  388.602498]  ? interrupt_entry+0xb5/0xc0
[  388.606584]  ? trace_hardirqs_off_caller+0xbb/0x310
[  388.611598]  ? trace_hardirqs_off_caller+0xbb/0x310
[  388.616643]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.621501]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.626513]  ? trace_hardirqs_on_caller+0x310/0x310
[  388.631573]  ? task_prio+0x50/0x50
[  388.635109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.640650]  ? check_preemption_disabled+0x48/0x280
[  388.645667]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  388.650531]  apic_timer_interrupt+0xf/0x20
[  388.654773]  </IRQ>
[  388.657006] RIP: 0010:lock_acquire+0x268/0x520
[  388.661585] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  388.680482] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  388.688202] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  388.695482] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  388.702752] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  388.710024] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  388.717288] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  388.724575]  ? lruvec_lru_size+0x450/0x450
[  388.728805]  ? kasan_check_read+0x11/0x20
[  388.732948]  ? lock_release+0xa00/0xa00
[  388.736924]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  388.741862]  down_read_trylock+0xda/0x140
[  388.746002]  ? shrink_slab+0x207/0x8c0
[  388.749883]  ? downgrade_write+0x270/0x270
[  388.754133]  shrink_slab+0x207/0x8c0
[  388.757844]  ? shrink_active_list+0x1f00/0x1f00
[  388.762528]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  388.768168]  ? __lock_acquire+0x62f/0x4c20
[  388.772405]  ? percpu_ref_get_many+0x240/0x240
[  388.776997]  ? print_usage_bug+0xc0/0xc0
[  388.781060]  shrink_node+0x431/0x16b0
[  388.784853]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  388.790199]  ? shrink_node_memcg+0x18f0/0x18f0
[  388.794778]  ? kvm_clock_read+0x18/0x30
[  388.798756]  ? ktime_get+0x2c1/0x400
[  388.802470]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  388.806978]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  388.812523]  ? __cpuset_node_allowed+0x19b/0x660
[  388.817275]  ? mark_held_locks+0x130/0x130
[  388.821542]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  388.827251]  ? zap_class+0x640/0x640
[  388.830966]  do_try_to_free_pages+0x3e7/0x1290
[  388.835538]  ? zap_class+0x640/0x640
[  388.839264]  ? shrink_node+0x16b0/0x16b0
[  388.843321]  ? __lock_is_held+0xb5/0x140
[  388.847388]  try_to_free_pages+0x4d0/0xb90
[  388.851638]  ? do_try_to_free_pages+0x1290/0x1290
[  388.856487]  ? lock_acquire+0x1ed/0x520
[  388.860487]  ? set_page_refcounted+0x280/0x280
[  388.865069]  ? lock_release+0xa00/0xa00
[  388.869041]  ? _raw_spin_unlock_irq+0x60/0x80
[  388.873530]  ? psi_memstall_enter+0x240/0x2b0
[  388.878023]  ? psi_memstall_tick+0x230/0x230
[  388.882444]  __alloc_pages_slowpath+0xa48/0x2de0
[  388.887249]  ? warn_alloc+0x120/0x120
[  388.891044]  ? mark_held_locks+0x130/0x130
[  388.895290]  ? find_get_entry+0xaae/0x1120
[  388.899542]  ? filemap_map_pages+0x1a20/0x1a20
[  388.904141]  ? zap_class+0x640/0x640
[  388.907863]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  388.913396]  ? check_preemption_disabled+0x48/0x280
[  388.918406]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  388.923945]  ? should_fail+0x22d/0xd01
[  388.927835]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  388.932958]  ? zap_class+0x640/0x640
[  388.936740]  ? __lock_is_held+0xb5/0x140
[  388.940806]  ? mark_held_locks+0x130/0x130
[  388.945044]  ? lock_release+0xa00/0xa00
[  388.949157]  ? perf_trace_sched_process_exec+0x860/0x860
[  388.954607]  ? xa_load+0x2ba/0x460
[  388.958153]  ? lock_downgrade+0x900/0x900
[  388.962306]  ? __might_sleep+0x95/0x190
[  388.966287]  __alloc_pages_nodemask+0xad8/0xea0
[  388.970965]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  388.975985]  ? __page_cache_alloc+0x191/0x5c0
[  388.980476]  ? xa_load+0x2e1/0x460
[  388.984030]  ? xa_clear_mark+0x40/0x40
[  388.987919]  ? zap_class+0x640/0x640
[  388.991636]  ? zap_class+0x640/0x640
[  388.995348]  ? zap_class+0x640/0x640
[  388.999059]  ? __do_page_cache_readahead+0x663/0x810
[  389.004162]  ? find_held_lock+0x36/0x1c0
[  389.008224]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  389.013775]  alloc_pages_current+0x173/0x350
[  389.018226]  __page_cache_alloc+0x38c/0x5c0
[  389.022537]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.027462]  ? kasan_check_read+0x11/0x20
[  389.031599]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.036885]  ? generic_perform_write+0x6a0/0x6a0
[  389.041652]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.047179]  ? check_preemption_disabled+0x48/0x280
[  389.052241]  filemap_fault+0x1595/0x25f0
[  389.056339]  ? __lock_page_or_retry+0xa00/0xa00
[  389.061018]  ? mark_held_locks+0x130/0x130
[  389.065284]  ? filemap_map_pages+0xd6b/0x1a20
[  389.069802]  ? lock_downgrade+0x900/0x900
[  389.073940]  ? check_preemption_disabled+0x48/0x280
[  389.078957]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.084423]  ? kasan_check_read+0x11/0x20
[  389.088566]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.093832]  ? rcu_softirq_qs+0x20/0x20
[  389.097853]  ? filemap_map_pages+0xd92/0x1a20
[  389.102351]  ? find_get_entries_tag+0x1400/0x1400
[  389.107203]  ? debug_object_destroy+0x2b0/0x2b0
[  389.111884]  ? lock_pi_update_atomic+0x150/0x150
[  389.116635]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.122195]  ? lock_acquire+0x1ed/0x520
[  389.126183]  ? ext4_filemap_fault+0x7a/0xad
[  389.130547]  ? lock_release+0xa00/0xa00
[  389.134509]  ? perf_trace_sched_process_exec+0x860/0x860
[  389.139952]  ? print_usage_bug+0xc0/0xc0
[  389.144028]  ? print_usage_bug+0xc0/0xc0
[  389.148107]  ? down_read+0x8d/0x120
[  389.151744]  ? ext4_filemap_fault+0x7a/0xad
[  389.156073]  ? __down_interruptible+0x700/0x700
[  389.160769]  ext4_filemap_fault+0x82/0xad
[  389.164928]  __do_fault+0x100/0x6b0
[  389.168592]  ? find_held_lock+0x36/0x1c0
[  389.172664]  ? pmd_devmap_trans_unstable+0x220/0x220
[  389.177762]  ? mark_held_locks+0x130/0x130
[  389.181991]  ? mark_held_locks+0x130/0x130
[  389.186227]  ? kasan_check_read+0x11/0x20
[  389.190386]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.195922]  __handle_mm_fault+0x3ea0/0x5be0
[  389.200330]  ? perf_trace_lock+0x7a0/0x7a0
[  389.204567]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  389.209434]  ? __switch_to_asm+0x34/0x70
[  389.213504]  ? __switch_to_asm+0x34/0x70
[  389.217586]  ? zap_class+0x640/0x640
[  389.221291]  ? zap_class+0x640/0x640
[  389.224995]  ? __x64_sys_futex+0x53e/0x6a0
[  389.229240]  ? find_held_lock+0x36/0x1c0
[  389.233313]  ? handle_mm_fault+0x42a/0xc70
[  389.237573]  ? lock_downgrade+0x900/0x900
[  389.241762]  ? check_preemption_disabled+0x48/0x280
[  389.246790]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  389.251709]  ? kasan_check_read+0x11/0x20
[  389.255868]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.261152]  ? rcu_softirq_qs+0x20/0x20
[  389.265122]  ? trace_hardirqs_off_caller+0x310/0x310
[  389.270260]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.275790]  ? sync_mm_rss+0x9a/0x1c0
[  389.279631]  handle_mm_fault+0x54f/0xc70
[  389.283715]  ? __handle_mm_fault+0x5be0/0x5be0
[  389.288311]  ? find_vma+0x34/0x190
[  389.291852]  __do_page_fault+0x5e8/0xe60
[  389.295909]  ? trace_hardirqs_off+0xb8/0x310
[  389.300359]  do_page_fault+0xf2/0x7e0
[  389.304181]  ? vmalloc_sync_all+0x30/0x30
[  389.308320]  ? error_entry+0x70/0xd0
[  389.312027]  ? trace_hardirqs_off_caller+0xbb/0x310
[  389.317033]  ? trace_hardirqs_on_caller+0xc0/0x310
[  389.321955]  ? syscall_return_slowpath+0x5e0/0x5e0
[  389.326879]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.331721]  ? trace_hardirqs_on_caller+0x310/0x310
[  389.336733]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  389.342180]  ? prepare_exit_to_usermode+0x291/0x3b0
[  389.347187]  ? page_fault+0x8/0x30
[  389.350722]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  389.355560]  ? page_fault+0x8/0x30
[  389.359095]  page_fault+0x1e/0x30
[  389.362541] RIP: 0033:0x45ddf3
[  389.365734] Code: Bad RIP value.
[  389.369084] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  389.374448] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  389.381703] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  389.388977] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  389.396261] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  389.403535] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  389.410844] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  389.410848] warn_alloc_show_mem: 1 callbacks suppressed
[  389.410854] Mem-Info:
[  389.418138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  389.423511] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  389.423511]  active_file:17 inactive_file:17 isolated_file:0
[  389.423511]  unevictable:0 dirty:4 writeback:0 unstable:0
[  389.423511]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  389.423511]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  389.423511]  free:13550 free_pcp:124 free_cma:0
[  389.425890] Call Trace:
[  389.435439] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  389.468484]  <IRQ>
[  389.471068] 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
[  389.498921]  dump_stack+0x244/0x39d
[  389.501043] lowmem_reserve[]: 0 2818 6321 6321
[  389.527150]  ? dump_stack_print_info.cold.1+0x20/0x20
[  389.530765] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  389.535344]  warn_alloc.cold.116+0xb7/0x1bd
[  389.540548] lowmem_reserve[]: 0 0 3503 3503
[  389.567861]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  389.572156] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  389.576481]  ? lock_downgrade+0x900/0x900
[  389.581299] lowmem_reserve[]: 0 0 0 0
[  389.610185]  ? trace_hardirqs_off+0xb8/0x310
[  389.614307] 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
[  389.618100]  ? trace_hardirqs_off+0xb8/0x310
[  389.622479] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  389.635996]  __alloc_pages_slowpath+0x2651/0x2de0
[  389.640378] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  389.655136]  ? warn_alloc+0x120/0x120
[  389.659939] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  389.674679]  ? print_usage_bug+0xc0/0xc0
[  389.678460] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  389.687285]  ? warn_alloc+0x120/0x120
[  389.691320] 1360 total pagecache pages
[  389.699884]  ? warn_alloc+0x120/0x120
[  389.703676] 0 pages in swap cache
[  389.707550]  ? print_usage_bug+0xc0/0xc0
[  389.711329] Swap cache stats: add 0, delete 0, find 0/0
[  389.714796]  ? print_usage_bug+0xc0/0xc0
[  389.718831] Free swap  = 0kB
[  389.724189]  ? __lock_acquire+0x62f/0x4c20
[  389.728240] Total swap = 0kB
[  389.731250]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  389.735466] 1965979 pages RAM
[  389.738499]  ? should_fail+0x22d/0xd01
[  389.744007] 0 pages HighMem/MovableOnly
[  389.747122]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.750988] 342854 pages reserved
[  389.754951]  ? __lock_acquire+0x62f/0x4c20
[  389.760042] 0 pages cma reserved
[  389.763483]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  389.767756] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  389.771031]  ? __lock_acquire+0x62f/0x4c20
[  389.771042]  ? should_fail+0x22d/0xd01
[  389.771053]  ? find_held_lock+0x36/0x1c0
[  389.771070]  ? mark_held_locks+0x130/0x130
[  389.776206] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  389.782624]  ? mark_held_locks+0x130/0x130
[  389.786847] syz-fuzzer cpuset=/ mems_allowed=0
[  389.790722]  ? zap_class+0x640/0x640
[  389.821712]  ? zap_class+0x640/0x640
[  389.825429]  ? print_usage_bug+0xc0/0xc0
[  389.829504]  ? do_raw_spin_unlock+0xa7/0x330
[  389.833918]  ? zap_class+0x640/0x640
[  389.837641]  ? print_usage_bug+0xc0/0xc0
[  389.841693]  ? wq_watchdog_touch+0x9c/0xfe
[  389.845920]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.851452]  ? check_preemption_disabled+0x48/0x280
[  389.856469]  ? __lock_is_held+0xb5/0x140
[  389.860532]  __alloc_pages_nodemask+0xad8/0xea0
[  389.865301]  ? zap_class+0x640/0x640
[  389.869049]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  389.874090]  ? find_held_lock+0x36/0x1c0
[  389.878168]  ? ____cache_alloc_node+0x1c7/0x1e0
[  389.882837]  ? lock_downgrade+0x900/0x900
[  389.886989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.892530]  cache_grow_begin+0xa5/0x8c0
[  389.896590]  ? do_raw_spin_unlock+0xa7/0x330
[  389.901010]  fallback_alloc+0x204/0x2e0
[  389.905003]  ____cache_alloc_node+0x1c7/0x1e0
[  389.909501]  kmem_cache_alloc_node+0xe3/0x730
[  389.914016]  ? ipv6_get_ifaddr+0x42e/0x620
[  389.918263]  __alloc_skb+0x119/0x770
[  389.921974]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  389.927257]  ? netdev_alloc_frag+0x1f0/0x1f0
[  389.931667]  ? lock_downgrade+0x900/0x900
[  389.935820]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  389.941358]  ? refcount_sub_and_test_checked+0x203/0x310
[  389.946815]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  389.952268]  ? addrconf_rs_timer+0x690/0x690
[  389.956689]  ndisc_alloc_skb+0x144/0x340
[  389.960771]  ndisc_send_rs+0x331/0x6e0
[  389.964677]  addrconf_rs_timer+0x314/0x690
[  389.968928]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.973172]  call_timer_fn+0x272/0x920
[  389.977055]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  389.981285]  ? process_timeout+0x40/0x40
[  389.985350]  ? __run_timers+0x7da/0xc70
[  389.989322]  ? _raw_spin_unlock_irq+0x27/0x80
[  389.993834]  ? _raw_spin_unlock_irq+0x27/0x80
[  389.998325]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.002558]  ? lockdep_hardirqs_on+0x296/0x5b0
[  390.007147]  ? trace_hardirqs_on+0xbd/0x310
[  390.011467]  ? kasan_check_read+0x11/0x20
[  390.015606]  ? __run_timers+0x7da/0xc70
[  390.019584]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.024688]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.028926]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.033162]  __run_timers+0x7e5/0xc70
[  390.036970]  ? timer_fixup_init+0x70/0x70
[  390.041114]  ? kasan_check_read+0x11/0x20
[  390.045259]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.050528]  ? rcu_softirq_qs+0x20/0x20
[  390.054500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.060033]  ? check_preemption_disabled+0x48/0x280
[  390.065085]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  390.069877]  ? retint_kernel+0x2d/0x2d
[  390.073816]  ? trace_hardirqs_on_caller+0xc0/0x310
[  390.078757]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  390.083509]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  390.088957]  ? zap_class+0x640/0x640
[  390.092667]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.098222]  ? check_preemption_disabled+0x48/0x280
[  390.103278]  ? __lock_is_held+0xb5/0x140
[  390.107338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.112868]  ? check_preemption_disabled+0x48/0x280
[  390.117896]  run_timer_softirq+0x52/0xb0
[  390.121953]  ? rcu_read_lock_sched_held+0x14f/0x180
[  390.126992]  __do_softirq+0x308/0xb7e
[  390.130785]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  390.135271]  ? lock_downgrade+0x900/0x900
[  390.139418]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  390.144520]  ? pvclock_read_flags+0x160/0x160
[  390.149106]  ? lapic_next_event+0x5a/0x90
[  390.153253]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.158787]  ? kvm_clock_read+0x18/0x30
[  390.162777]  ? kvm_sched_clock_read+0x9/0x20
[  390.167190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.172733]  ? check_preemption_disabled+0x48/0x280
[  390.177759]  irq_exit+0x17f/0x1c0
[  390.181221]  smp_apic_timer_interrupt+0x1cb/0x760
[  390.186080]  ? smp_reschedule_interrupt+0x109/0x650
[  390.191087]  ? smp_call_function_single_interrupt+0x650/0x650
[  390.196962]  ? interrupt_entry+0xb5/0xc0
[  390.201023]  ? trace_hardirqs_off_caller+0xbb/0x310
[  390.206066]  ? trace_hardirqs_off_caller+0xbb/0x310
[  390.211071]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.215918]  ? trace_hardirqs_on_caller+0x310/0x310
[  390.220940]  ? trace_hardirqs_on_caller+0x310/0x310
[  390.225967]  ? task_prio+0x50/0x50
[  390.229529]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.235070]  ? check_preemption_disabled+0x48/0x280
[  390.240082]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.244952]  apic_timer_interrupt+0xf/0x20
[  390.249177]  </IRQ>
[  390.251417] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  390.256347] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  390.275241] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  390.282957] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  390.290219] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  390.297495] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  390.304759] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  390.312033] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  390.319341]  skb_clone+0x1bb/0x500
[  390.322911]  ? skb_split+0x11e0/0x11e0
[  390.326793]  ? preempt_notifier_register+0x200/0x200
[  390.331888]  ? __switch_to_asm+0x34/0x70
[  390.335944]  ? __switch_to_asm+0x34/0x70
[  390.339997]  ? __switch_to_asm+0x40/0x70
[  390.344048]  ? __switch_to_asm+0x34/0x70
[  390.348097]  ? __switch_to_asm+0x40/0x70
[  390.352160]  ? __switch_to_asm+0x40/0x70
[  390.356213]  ? __switch_to_asm+0x34/0x70
[  390.360266]  ? __switch_to_asm+0x34/0x70
[  390.364322]  ? __switch_to_asm+0x40/0x70
[  390.368370]  ? __switch_to_asm+0x34/0x70
[  390.372493]  bpf_clone_redirect+0xb9/0x490
[  390.376742]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  390.381811]  ? __sched_text_start+0x8/0x8
[  390.385966]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  390.390724]  ? find_held_lock+0x36/0x1c0
[  390.394788]  ? lock_acquire+0x1ed/0x520
[  390.398758]  ? bpf_test_run+0x3ee/0x7a0
[  390.402730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.408265]  ? check_preemption_disabled+0x48/0x280
[  390.413280]  ? kasan_check_read+0x11/0x20
[  390.417440]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.422710]  ? rcu_softirq_qs+0x20/0x20
[  390.426690]  ? preempt_schedule+0x4d/0x60
[  390.430833]  ? ___preempt_schedule+0x16/0x18
[  390.435273]  ? bpf_test_run+0x271/0x7a0
[  390.439254]  ? netlink_diag_dump+0x2a0/0x2a0
[  390.443674]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.449224]  ? bpf_test_init.isra.10+0x70/0x100
[  390.453897]  ? bpf_prog_test_run_skb+0x762/0xd60
[  390.458661]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  390.463512]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  390.469049]  ? fput+0x130/0x1a0
[  390.472330]  ? __bpf_prog_get+0x9b/0x290
[  390.476392]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  390.481239]  ? bpf_prog_test_run+0x130/0x1a0
[  390.485665]  ? __x64_sys_bpf+0x3d8/0x520
[  390.489727]  ? bpf_prog_get+0x20/0x20
[  390.493543]  ? do_syscall_64+0x1b9/0x820
[  390.497599]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  390.502963]  ? syscall_return_slowpath+0x5e0/0x5e0
[  390.507890]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.512744]  ? trace_hardirqs_on_caller+0x310/0x310
[  390.517758]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  390.522775]  ? prepare_exit_to_usermode+0x291/0x3b0
[  390.527789]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  390.532649]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  390.538035] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  390.538119] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  390.544965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  390.544970] Call Trace:
[  390.544975]  <IRQ>
[  390.545005]  dump_stack+0x244/0x39d
[  390.545025]  ? dump_stack_print_info.cold.1+0x20/0x20
[  390.551594] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  390.560864]  warn_alloc.cold.116+0xb7/0x1bd
[  390.563424] syz-executor4 cpuset=syz4 mems_allowed=0
[  390.565568]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  390.599028]  ? lock_downgrade+0x900/0x900
[  390.603185]  ? trace_hardirqs_off+0xb8/0x310
[  390.607604]  ? trace_hardirqs_off+0xb8/0x310
[  390.612022]  __alloc_pages_slowpath+0x2651/0x2de0
[  390.616910]  ? warn_alloc+0x120/0x120
[  390.620717]  ? print_usage_bug+0xc0/0xc0
[  390.624780]  ? warn_alloc+0x120/0x120
[  390.628587]  ? warn_alloc+0x120/0x120
[  390.632391]  ? print_usage_bug+0xc0/0xc0
[  390.636455]  ? print_usage_bug+0xc0/0xc0
[  390.640518]  ? __lock_acquire+0x62f/0x4c20
[  390.644795]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  390.650335]  ? should_fail+0x22d/0xd01
[  390.654227]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.659334]  ? __lock_acquire+0x62f/0x4c20
[  390.663573]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  390.668675]  ? __lock_acquire+0x62f/0x4c20
[  390.672918]  ? should_fail+0x22d/0xd01
[  390.676806]  ? find_held_lock+0x36/0x1c0
[  390.680875]  ? mark_held_locks+0x130/0x130
[  390.685119]  ? mark_held_locks+0x130/0x130
[  390.689374]  ? zap_class+0x640/0x640
[  390.693089]  ? zap_class+0x640/0x640
[  390.696809]  ? print_usage_bug+0xc0/0xc0
[  390.700869]  ? do_raw_spin_unlock+0xa7/0x330
[  390.705282]  ? zap_class+0x640/0x640
[  390.708999]  ? print_usage_bug+0xc0/0xc0
[  390.713082]  ? wq_watchdog_touch+0x9c/0xfe
[  390.717320]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.722878]  ? check_preemption_disabled+0x48/0x280
[  390.727927]  ? __lock_is_held+0xb5/0x140
[  390.731996]  __alloc_pages_nodemask+0xad8/0xea0
[  390.736677]  ? zap_class+0x640/0x640
[  390.740401]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  390.745433]  ? find_held_lock+0x36/0x1c0
[  390.749506]  ? ____cache_alloc_node+0x1c7/0x1e0
[  390.754182]  ? lock_downgrade+0x900/0x900
[  390.758338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.763882]  cache_grow_begin+0xa5/0x8c0
[  390.767961]  ? do_raw_spin_unlock+0xa7/0x330
[  390.772382]  fallback_alloc+0x204/0x2e0
[  390.776363]  ____cache_alloc_node+0x1c7/0x1e0
[  390.780870]  kmem_cache_alloc_node+0xe3/0x730
[  390.785402]  ? ipv6_get_ifaddr+0x42e/0x620
[  390.789653]  __alloc_skb+0x119/0x770
[  390.793366]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  390.798647]  ? netdev_alloc_frag+0x1f0/0x1f0
[  390.803074]  ? lock_downgrade+0x900/0x900
[  390.807232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.812768]  ? refcount_sub_and_test_checked+0x203/0x310
[  390.818223]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  390.823677]  ? addrconf_rs_timer+0x690/0x690
[  390.828104]  ndisc_alloc_skb+0x144/0x340
[  390.832181]  ndisc_send_rs+0x331/0x6e0
[  390.836087]  addrconf_rs_timer+0x314/0x690
[  390.840332]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.844578]  call_timer_fn+0x272/0x920
[  390.848472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.852709]  ? process_timeout+0x40/0x40
[  390.856789]  ? mark_held_locks+0xc7/0x130
[  390.860954]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.865445]  ? _raw_spin_unlock_irq+0x27/0x80
[  390.869951]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.874184]  ? lockdep_hardirqs_on+0x296/0x5b0
[  390.878767]  ? trace_hardirqs_on+0xbd/0x310
[  390.883091]  ? kasan_check_read+0x11/0x20
[  390.887258]  ? __run_timers+0x7da/0xc70
[  390.891237]  ? trace_hardirqs_off_caller+0x310/0x310
[  390.896346]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.900586]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  390.904818]  __run_timers+0x7e5/0xc70
[  390.908627]  ? timer_fixup_init+0x70/0x70
[  390.912790]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  390.917821]  ? zap_class+0x640/0x640
[  390.921539]  ? print_usage_bug+0xc0/0xc0
[  390.925607]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  390.930808]  ? find_held_lock+0x36/0x1c0
[  390.934887]  ? zap_class+0x640/0x640
[  390.938645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.944182]  ? check_preemption_disabled+0x48/0x280
[  390.949315]  ? __lock_is_held+0xb5/0x140
[  390.953384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  390.958924]  ? check_preemption_disabled+0x48/0x280
[  390.963948]  run_timer_softirq+0x52/0xb0
[  390.968012]  ? rcu_read_lock_sched_held+0x14f/0x180
[  390.973027]  __do_softirq+0x308/0xb7e
[  390.976828]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  390.981318]  ? lock_downgrade+0x900/0x900
[  390.985502]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  390.990624]  ? pvclock_read_flags+0x160/0x160
[  390.995118]  ? lapic_next_event+0x5a/0x90
[  390.999270]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.004809]  ? kvm_clock_read+0x18/0x30
[  391.008804]  ? kvm_sched_clock_read+0x9/0x20
[  391.013207]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.018756]  ? check_preemption_disabled+0x48/0x280
[  391.023776]  irq_exit+0x17f/0x1c0
[  391.027227]  smp_apic_timer_interrupt+0x1cb/0x760
[  391.032065]  ? smp_reschedule_interrupt+0x109/0x650
[  391.037083]  ? smp_call_function_single_interrupt+0x650/0x650
[  391.043051]  ? interrupt_entry+0xb5/0xc0
[  391.047108]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.052143]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.057191]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.062034]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.067044]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.072058]  ? task_prio+0x50/0x50
[  391.075597]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.081609]  ? check_preemption_disabled+0x48/0x280
[  391.086633]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.091488]  apic_timer_interrupt+0xf/0x20
[  391.095720]  </IRQ>
[  391.097957] RIP: 0010:lock_acquire+0x268/0x520
[  391.102557] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  391.121459] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  391.129168] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  391.136434] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  391.143702] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  391.150969] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  391.158235] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  391.165545]  ? lruvec_lru_size+0x450/0x450
[  391.169783]  ? kasan_check_read+0x11/0x20
[  391.173933]  ? lock_release+0xa00/0xa00
[  391.177917]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  391.182852]  down_read_trylock+0xda/0x140
[  391.186997]  ? shrink_slab+0x207/0x8c0
[  391.190880]  ? downgrade_write+0x270/0x270
[  391.195134]  shrink_slab+0x207/0x8c0
[  391.198848]  ? shrink_active_list+0x1f00/0x1f00
[  391.203522]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  391.209156]  ? __lock_acquire+0x62f/0x4c20
[  391.213393]  ? percpu_ref_get_many+0x240/0x240
[  391.218001]  ? print_usage_bug+0xc0/0xc0
[  391.222082]  shrink_node+0x431/0x16b0
[  391.225881]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  391.231189]  ? shrink_node_memcg+0x18f0/0x18f0
[  391.235776]  ? kvm_clock_read+0x18/0x30
[  391.239756]  ? ktime_get+0x2c1/0x400
[  391.243469]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  391.247965]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  391.253499]  ? __cpuset_node_allowed+0x19b/0x660
[  391.258252]  ? mark_held_locks+0x130/0x130
[  391.262485]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  391.268195]  ? zap_class+0x640/0x640
[  391.271921]  do_try_to_free_pages+0x3e7/0x1290
[  391.276513]  ? zap_class+0x640/0x640
[  391.280240]  ? shrink_node+0x16b0/0x16b0
[  391.284306]  ? __lock_is_held+0xb5/0x140
[  391.288391]  try_to_free_pages+0x4d0/0xb90
[  391.292642]  ? do_try_to_free_pages+0x1290/0x1290
[  391.297489]  ? lock_acquire+0x1ed/0x520
[  391.301454]  ? set_page_refcounted+0x280/0x280
[  391.306032]  ? lock_release+0xa00/0xa00
[  391.310015]  ? _raw_spin_unlock_irq+0x60/0x80
[  391.314503]  ? psi_memstall_enter+0x240/0x2b0
[  391.319006]  ? psi_memstall_tick+0x230/0x230
[  391.323420]  __alloc_pages_slowpath+0xa48/0x2de0
[  391.328195]  ? warn_alloc+0x120/0x120
[  391.332001]  ? mark_held_locks+0x130/0x130
[  391.336234]  ? find_get_entry+0xaae/0x1120
[  391.340484]  ? filemap_map_pages+0x1a20/0x1a20
[  391.345062]  ? zap_class+0x640/0x640
[  391.348777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.354311]  ? check_preemption_disabled+0x48/0x280
[  391.359335]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.364867]  ? should_fail+0x22d/0xd01
[  391.368748]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  391.373893]  ? zap_class+0x640/0x640
[  391.377627]  ? __lock_is_held+0xb5/0x140
[  391.381685]  ? mark_held_locks+0x130/0x130
[  391.385917]  ? lock_release+0xa00/0xa00
[  391.389919]  ? perf_trace_sched_process_exec+0x860/0x860
[  391.395363]  ? xa_load+0x2ba/0x460
[  391.398914]  ? lock_downgrade+0x900/0x900
[  391.403176]  ? __might_sleep+0x95/0x190
[  391.407163]  __alloc_pages_nodemask+0xad8/0xea0
[  391.411828]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  391.416835]  ? __page_cache_alloc+0x191/0x5c0
[  391.421321]  ? xa_load+0x2e1/0x460
[  391.424855]  ? xa_clear_mark+0x40/0x40
[  391.428774]  ? zap_class+0x640/0x640
[  391.432484]  ? zap_class+0x640/0x640
[  391.436187]  ? zap_class+0x640/0x640
[  391.439893]  ? __do_page_cache_readahead+0x663/0x810
[  391.445029]  ? find_held_lock+0x36/0x1c0
[  391.449117]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  391.454816]  alloc_pages_current+0x173/0x350
[  391.459257]  __page_cache_alloc+0x38c/0x5c0
[  391.463590]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.468518]  ? kasan_check_read+0x11/0x20
[  391.472661]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.477934]  ? generic_perform_write+0x6a0/0x6a0
[  391.482700]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.488261]  ? check_preemption_disabled+0x48/0x280
[  391.493301]  filemap_fault+0x1595/0x25f0
[  391.497392]  ? __lock_page_or_retry+0xa00/0xa00
[  391.502087]  ? mark_held_locks+0x130/0x130
[  391.506323]  ? filemap_map_pages+0xd6b/0x1a20
[  391.510812]  ? lock_downgrade+0x900/0x900
[  391.514954]  ? check_preemption_disabled+0x48/0x280
[  391.519967]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.524903]  ? kasan_check_read+0x11/0x20
[  391.529047]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.534316]  ? rcu_softirq_qs+0x20/0x20
[  391.538311]  ? filemap_map_pages+0xd92/0x1a20
[  391.542810]  ? find_get_entries_tag+0x1400/0x1400
[  391.547648]  ? debug_object_destroy+0x2b0/0x2b0
[  391.552313]  ? lock_pi_update_atomic+0x150/0x150
[  391.557065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.562606]  ? lock_acquire+0x1ed/0x520
[  391.566651]  ? ext4_filemap_fault+0x7a/0xad
[  391.570989]  ? lock_release+0xa00/0xa00
[  391.574956]  ? perf_trace_sched_process_exec+0x860/0x860
[  391.580420]  ? print_usage_bug+0xc0/0xc0
[  391.584493]  ? print_usage_bug+0xc0/0xc0
[  391.588592]  ? down_read+0x8d/0x120
[  391.592226]  ? ext4_filemap_fault+0x7a/0xad
[  391.596542]  ? __down_interruptible+0x700/0x700
[  391.601229]  ext4_filemap_fault+0x82/0xad
[  391.605379]  __do_fault+0x100/0x6b0
[  391.608998]  ? find_held_lock+0x36/0x1c0
[  391.613069]  ? pmd_devmap_trans_unstable+0x220/0x220
[  391.618229]  ? mark_held_locks+0x130/0x130
[  391.622461]  ? mark_held_locks+0x130/0x130
[  391.626696]  ? kasan_check_read+0x11/0x20
[  391.630836]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  391.636375]  __handle_mm_fault+0x3ea0/0x5be0
[  391.640793]  ? perf_trace_lock+0x7a0/0x7a0
[  391.645047]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  391.649894]  ? __switch_to_asm+0x34/0x70
[  391.653971]  ? __switch_to_asm+0x34/0x70
[  391.658042]  ? zap_class+0x640/0x640
[  391.661749]  ? zap_class+0x640/0x640
[  391.665456]  ? __x64_sys_futex+0x53e/0x6a0
[  391.669691]  ? find_held_lock+0x36/0x1c0
[  391.673781]  ? handle_mm_fault+0x42a/0xc70
[  391.678015]  ? lock_downgrade+0x900/0x900
[  391.682166]  ? check_preemption_disabled+0x48/0x280
[  391.687213]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  391.692148]  ? kasan_check_read+0x11/0x20
[  391.696292]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  391.701586]  ? rcu_softirq_qs+0x20/0x20
[  391.705608]  ? trace_hardirqs_off_caller+0x310/0x310
[  391.710713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  391.716250]  ? sync_mm_rss+0x9a/0x1c0
[  391.720070]  handle_mm_fault+0x54f/0xc70
[  391.724153]  ? __handle_mm_fault+0x5be0/0x5be0
[  391.728738]  ? find_vma+0x34/0x190
[  391.732287]  __do_page_fault+0x5e8/0xe60
[  391.736344]  ? trace_hardirqs_off+0xb8/0x310
[  391.740759]  do_page_fault+0xf2/0x7e0
[  391.744575]  ? vmalloc_sync_all+0x30/0x30
[  391.748723]  ? error_entry+0x70/0xd0
[  391.752447]  ? trace_hardirqs_off_caller+0xbb/0x310
[  391.757461]  ? trace_hardirqs_on_caller+0xc0/0x310
[  391.762389]  ? syscall_return_slowpath+0x5e0/0x5e0
[  391.767325]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.772180]  ? trace_hardirqs_on_caller+0x310/0x310
[  391.777193]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  391.782642]  ? prepare_exit_to_usermode+0x291/0x3b0
[  391.787654]  ? page_fault+0x8/0x30
[  391.791196]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  391.796036]  ? page_fault+0x8/0x30
[  391.799571]  page_fault+0x1e/0x30
[  391.803028] RIP: 0033:0x45ddf3
[  391.806252] Code: Bad RIP value.
[  391.809611] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  391.814993] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  391.822254] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  391.829530] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  391.836852] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  391.844112] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  391.851420] warn_alloc_show_mem: 1 callbacks suppressed
[  391.851430] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  391.851432] Mem-Info:
[  391.851458] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  391.851458]  active_file:17 inactive_file:17 isolated_file:0
[  391.851458]  unevictable:0 dirty:4 writeback:0 unstable:0
[  391.851458]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  391.851458]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  391.851458]  free:13550 free_pcp:124 free_cma:0
[  391.856817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  391.864123] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  391.866525] Call Trace:
[  391.899587] 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
[  391.908927]  <IRQ>
[  391.936666] lowmem_reserve[]: 0 2818 6321 6321
[  391.939249]  dump_stack+0x244/0x39d
[  391.965331] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  391.967481]  ? dump_stack_print_info.cold.1+0x20/0x20
[  391.972033] lowmem_reserve[]: 0 0 3503 3503
[  391.975660]  warn_alloc.cold.116+0xb7/0x1bd
[  392.002954] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  392.008148]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  392.012446] lowmem_reserve[]: 0 0 0 0
[  392.016762]  ? lock_downgrade+0x900/0x900
[  392.045621] 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
[  392.050465]  ? trace_hardirqs_off+0xb8/0x310
[  392.054231] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  392.058375]  ? trace_hardirqs_off+0xb8/0x310
[  392.071884] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  392.076295]  __alloc_pages_slowpath+0x2651/0x2de0
[  392.091007] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  392.095424]  ? warn_alloc+0x120/0x120
[  392.110114] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  392.114949]  ? print_usage_bug+0xc0/0xc0
[  392.123756] 1360 total pagecache pages
[  392.127546]  ? warn_alloc+0x120/0x120
[  392.136166] 0 pages in swap cache
[  392.140222]  ? warn_alloc+0x120/0x120
[  392.144083] Swap cache stats: add 0, delete 0, find 0/0
[  392.148162]  ? print_usage_bug+0xc0/0xc0
[  392.151619] Free swap  = 0kB
[  392.155413]  ? kvm_clock_read+0x18/0x30
[  392.160744] Total swap = 0kB
[  392.164824]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  392.167831] 1965979 pages RAM
[  392.171792]  ? print_usage_bug+0xc0/0xc0
[  392.174784] 0 pages HighMem/MovableOnly
[  392.179813]  ? __lock_acquire+0x62f/0x4c20
[  392.182890] 342854 pages reserved
[  392.186952]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.190921] 0 pages cma reserved
[  392.195162]  ? should_fail+0x22d/0xd01
[  392.198658] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  392.204138]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.204154]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.204169]  ? __lock_acquire+0x62f/0x4c20
[  392.207617] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  392.211427]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  392.217911] syz-fuzzer cpuset=/ mems_allowed=0
[  392.223192]  ? __lock_acquire+0x62f/0x4c20
[  392.256595]  ? should_fail+0x22d/0xd01
[  392.260507]  ? rcu_irq_exit+0x1a2/0x390
[  392.264491]  ? mark_held_locks+0x130/0x130
[  392.268727]  ? mark_held_locks+0x130/0x130
[  392.272962]  ? mark_held_locks+0xc7/0x130
[  392.277104]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  392.282123]  ? zap_class+0x640/0x640
[  392.285840]  ? print_usage_bug+0xc0/0xc0
[  392.289915]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.295452]  ? check_preemption_disabled+0x48/0x280
[  392.300473]  ? __lock_is_held+0xb5/0x140
[  392.304530]  __alloc_pages_nodemask+0xad8/0xea0
[  392.309194]  ? zap_class+0x640/0x640
[  392.312912]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  392.317966]  ? find_held_lock+0x36/0x1c0
[  392.322042]  ? ____cache_alloc_node+0x1c7/0x1e0
[  392.326704]  ? lock_downgrade+0x900/0x900
[  392.330852]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.336388]  cache_grow_begin+0xa5/0x8c0
[  392.340449]  ? do_raw_spin_unlock+0xa7/0x330
[  392.344858]  fallback_alloc+0x204/0x2e0
[  392.348851]  ____cache_alloc_node+0x1c7/0x1e0
[  392.353359]  kmem_cache_alloc_node+0xe3/0x730
[  392.357865]  ? ipv6_get_ifaddr+0x42e/0x620
[  392.362099]  __alloc_skb+0x119/0x770
[  392.365825]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.371096]  ? netdev_alloc_frag+0x1f0/0x1f0
[  392.375527]  ? lock_downgrade+0x900/0x900
[  392.379723]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.385267]  ? refcount_sub_and_test_checked+0x203/0x310
[  392.390733]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  392.396175]  ? addrconf_rs_timer+0x690/0x690
[  392.400584]  ndisc_alloc_skb+0x144/0x340
[  392.404639]  ndisc_send_rs+0x331/0x6e0
[  392.408542]  addrconf_rs_timer+0x314/0x690
[  392.412779]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.417013]  call_timer_fn+0x272/0x920
[  392.420892]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.425158]  ? process_timeout+0x40/0x40
[  392.429219]  ? __run_timers+0x7da/0xc70
[  392.433199]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.437703]  ? _raw_spin_unlock_irq+0x27/0x80
[  392.442202]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.446449]  ? lockdep_hardirqs_on+0x296/0x5b0
[  392.451029]  ? trace_hardirqs_on+0xbd/0x310
[  392.455360]  ? kasan_check_read+0x11/0x20
[  392.459539]  ? __run_timers+0x7da/0xc70
[  392.463540]  ? trace_hardirqs_off_caller+0x310/0x310
[  392.468642]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.472875]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  392.477101]  __run_timers+0x7e5/0xc70
[  392.480909]  ? timer_fixup_init+0x70/0x70
[  392.485053]  ? kasan_check_read+0x11/0x20
[  392.489214]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.494492]  ? rcu_softirq_qs+0x20/0x20
[  392.498474]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.504014]  ? check_preemption_disabled+0x48/0x280
[  392.509043]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  392.513814]  ? retint_kernel+0x2d/0x2d
[  392.517701]  ? trace_hardirqs_on_caller+0xc0/0x310
[  392.522633]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  392.527391]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  392.532849]  ? zap_class+0x640/0x640
[  392.536570]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.542122]  ? check_preemption_disabled+0x48/0x280
[  392.547165]  ? __lock_is_held+0xb5/0x140
[  392.551224]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.556762]  ? check_preemption_disabled+0x48/0x280
[  392.561781]  run_timer_softirq+0x52/0xb0
[  392.565840]  ? rcu_read_lock_sched_held+0x14f/0x180
[  392.570855]  __do_softirq+0x308/0xb7e
[  392.574658]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  392.579158]  ? lock_downgrade+0x900/0x900
[  392.583322]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  392.588440]  ? pvclock_read_flags+0x160/0x160
[  392.592951]  ? lapic_next_event+0x5a/0x90
[  392.597099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.602649]  ? kvm_clock_read+0x18/0x30
[  392.606627]  ? kvm_sched_clock_read+0x9/0x20
[  392.611036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.616619]  ? check_preemption_disabled+0x48/0x280
[  392.621646]  irq_exit+0x17f/0x1c0
[  392.625098]  smp_apic_timer_interrupt+0x1cb/0x760
[  392.629944]  ? smp_reschedule_interrupt+0x109/0x650
[  392.634971]  ? smp_call_function_single_interrupt+0x650/0x650
[  392.640852]  ? interrupt_entry+0xb5/0xc0
[  392.644917]  ? trace_hardirqs_off_caller+0xbb/0x310
[  392.650368]  ? trace_hardirqs_off_caller+0xbb/0x310
[  392.655390]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.660237]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.665264]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.670282]  ? task_prio+0x50/0x50
[  392.673823]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.679361]  ? check_preemption_disabled+0x48/0x280
[  392.684385]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.689241]  apic_timer_interrupt+0xf/0x20
[  392.693496]  </IRQ>
[  392.695737] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  392.700667] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  392.719563] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  392.727278] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  392.734556] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  392.741822] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  392.749082] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  392.756347] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  392.763650]  skb_clone+0x1bb/0x500
[  392.767190]  ? skb_split+0x11e0/0x11e0
[  392.771092]  ? preempt_notifier_register+0x200/0x200
[  392.776187]  ? __switch_to_asm+0x34/0x70
[  392.780242]  ? __switch_to_asm+0x34/0x70
[  392.784314]  ? __switch_to_asm+0x40/0x70
[  392.788367]  ? __switch_to_asm+0x34/0x70
[  392.792435]  ? __switch_to_asm+0x40/0x70
[  392.796492]  ? __switch_to_asm+0x40/0x70
[  392.800589]  ? __switch_to_asm+0x34/0x70
[  392.804671]  ? __switch_to_asm+0x34/0x70
[  392.808727]  ? __switch_to_asm+0x40/0x70
[  392.812784]  ? __switch_to_asm+0x34/0x70
[  392.816840]  bpf_clone_redirect+0xb9/0x490
[  392.821102]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  392.826118]  ? __sched_text_start+0x8/0x8
[  392.830302]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  392.835081]  ? find_held_lock+0x36/0x1c0
[  392.839156]  ? lock_acquire+0x1ed/0x520
[  392.843140]  ? bpf_test_run+0x3ee/0x7a0
[  392.847137]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  392.852728]  ? check_preemption_disabled+0x48/0x280
[  392.857803]  ? kasan_check_read+0x11/0x20
[  392.861946]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  392.867229]  ? rcu_softirq_qs+0x20/0x20
[  392.871202]  ? preempt_schedule+0x4d/0x60
[  392.875347]  ? ___preempt_schedule+0x16/0x18
[  392.879761]  ? bpf_test_run+0x271/0x7a0
[  392.883761]  ? netlink_diag_dump+0x2a0/0x2a0
[  392.888199]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  392.893736]  ? bpf_test_init.isra.10+0x70/0x100
[  392.898426]  ? bpf_prog_test_run_skb+0x762/0xd60
[  392.903187]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  392.908034]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  392.913572]  ? fput+0x130/0x1a0
[  392.916874]  ? __bpf_prog_get+0x9b/0x290
[  392.920949]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  392.925791]  ? bpf_prog_test_run+0x130/0x1a0
[  392.930203]  ? __x64_sys_bpf+0x3d8/0x520
[  392.934263]  ? bpf_prog_get+0x20/0x20
[  392.938081]  ? do_syscall_64+0x1b9/0x820
[  392.942147]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  392.947528]  ? syscall_return_slowpath+0x5e0/0x5e0
[  392.952708]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.957567]  ? trace_hardirqs_on_caller+0x310/0x310
[  392.962588]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  392.967609]  ? prepare_exit_to_usermode+0x291/0x3b0
[  392.972648]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  392.977499]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  392.982882] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  392.982956] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  392.989814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  392.996408] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  393.005661] Call Trace:
[  393.016137] syz-executor4 cpuset=syz4 mems_allowed=0
[  393.018708]  <IRQ>
[  393.025940]  dump_stack+0x244/0x39d
[  393.029577]  ? dump_stack_print_info.cold.1+0x20/0x20
[  393.034779]  warn_alloc.cold.116+0xb7/0x1bd
[  393.039107]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  393.043962]  ? lock_downgrade+0x900/0x900
[  393.048115]  ? trace_hardirqs_off+0xb8/0x310
[  393.052536]  ? trace_hardirqs_off+0xb8/0x310
[  393.056953]  __alloc_pages_slowpath+0x2651/0x2de0
[  393.061825]  ? warn_alloc+0x120/0x120
[  393.065645]  ? print_usage_bug+0xc0/0xc0
[  393.069706]  ? warn_alloc+0x120/0x120
[  393.073511]  ? warn_alloc+0x120/0x120
[  393.077315]  ? print_usage_bug+0xc0/0xc0
[  393.081883]  ? print_usage_bug+0xc0/0xc0
[  393.085950]  ? __lock_acquire+0x62f/0x4c20
[  393.090205]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.095772]  ? should_fail+0x22d/0xd01
[  393.099666]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.104772]  ? __lock_acquire+0x62f/0x4c20
[  393.109014]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.114143]  ? __lock_acquire+0x62f/0x4c20
[  393.118378]  ? should_fail+0x22d/0xd01
[  393.122263]  ? find_held_lock+0x36/0x1c0
[  393.126351]  ? mark_held_locks+0x130/0x130
[  393.130595]  ? mark_held_locks+0x130/0x130
[  393.134842]  ? zap_class+0x640/0x640
[  393.138590]  ? zap_class+0x640/0x640
[  393.142307]  ? print_usage_bug+0xc0/0xc0
[  393.146371]  ? do_raw_spin_unlock+0xa7/0x330
[  393.150778]  ? zap_class+0x640/0x640
[  393.154496]  ? print_usage_bug+0xc0/0xc0
[  393.158559]  ? wq_watchdog_touch+0x9c/0xfe
[  393.162843]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.168379]  ? check_preemption_disabled+0x48/0x280
[  393.173430]  ? __lock_is_held+0xb5/0x140
[  393.177496]  __alloc_pages_nodemask+0xad8/0xea0
[  393.182165]  ? zap_class+0x640/0x640
[  393.185896]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  393.190941]  ? find_held_lock+0x36/0x1c0
[  393.195012]  ? ____cache_alloc_node+0x1c7/0x1e0
[  393.199681]  ? lock_downgrade+0x900/0x900
[  393.203833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.209369]  cache_grow_begin+0xa5/0x8c0
[  393.213427]  ? do_raw_spin_unlock+0xa7/0x330
[  393.217836]  fallback_alloc+0x204/0x2e0
[  393.221813]  ____cache_alloc_node+0x1c7/0x1e0
[  393.226310]  kmem_cache_alloc_node+0xe3/0x730
[  393.230804]  ? ipv6_get_ifaddr+0x42e/0x620
[  393.235046]  __alloc_skb+0x119/0x770
[  393.238768]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.244053]  ? netdev_alloc_frag+0x1f0/0x1f0
[  393.248459]  ? lock_downgrade+0x900/0x900
[  393.252612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.258157]  ? refcount_sub_and_test_checked+0x203/0x310
[  393.263616]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  393.269066]  ? addrconf_rs_timer+0x690/0x690
[  393.273489]  ndisc_alloc_skb+0x144/0x340
[  393.277572]  ndisc_send_rs+0x331/0x6e0
[  393.281469]  addrconf_rs_timer+0x314/0x690
[  393.285744]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.289988]  call_timer_fn+0x272/0x920
[  393.293875]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.298115]  ? process_timeout+0x40/0x40
[  393.302197]  ? mark_held_locks+0xc7/0x130
[  393.306346]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.310849]  ? _raw_spin_unlock_irq+0x27/0x80
[  393.315393]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.319646]  ? lockdep_hardirqs_on+0x296/0x5b0
[  393.324233]  ? trace_hardirqs_on+0xbd/0x310
[  393.328556]  ? kasan_check_read+0x11/0x20
[  393.332699]  ? __run_timers+0x7da/0xc70
[  393.336672]  ? trace_hardirqs_off_caller+0x310/0x310
[  393.341778]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.346016]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  393.350245]  __run_timers+0x7e5/0xc70
[  393.354051]  ? timer_fixup_init+0x70/0x70
[  393.358192]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  393.363203]  ? zap_class+0x640/0x640
[  393.366937]  ? print_usage_bug+0xc0/0xc0
[  393.371012]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  393.376231]  ? find_held_lock+0x36/0x1c0
[  393.380305]  ? zap_class+0x640/0x640
[  393.384015]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.389579]  ? check_preemption_disabled+0x48/0x280
[  393.394598]  ? __lock_is_held+0xb5/0x140
[  393.398656]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.404191]  ? check_preemption_disabled+0x48/0x280
[  393.409236]  run_timer_softirq+0x52/0xb0
[  393.413289]  ? rcu_read_lock_sched_held+0x14f/0x180
[  393.418297]  __do_softirq+0x308/0xb7e
[  393.422112]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  393.426619]  ? lock_downgrade+0x900/0x900
[  393.430832]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  393.435939]  ? pvclock_read_flags+0x160/0x160
[  393.440459]  ? lapic_next_event+0x5a/0x90
[  393.444623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.450181]  ? kvm_clock_read+0x18/0x30
[  393.454156]  ? kvm_sched_clock_read+0x9/0x20
[  393.458564]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.464157]  ? check_preemption_disabled+0x48/0x280
[  393.469201]  irq_exit+0x17f/0x1c0
[  393.472655]  smp_apic_timer_interrupt+0x1cb/0x760
[  393.477499]  ? smp_reschedule_interrupt+0x109/0x650
[  393.482572]  ? smp_call_function_single_interrupt+0x650/0x650
[  393.488453]  ? interrupt_entry+0xb5/0xc0
[  393.492520]  ? trace_hardirqs_off_caller+0xbb/0x310
[  393.497534]  ? trace_hardirqs_off_caller+0xbb/0x310
[  393.502549]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.507419]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.512445]  ? trace_hardirqs_on_caller+0x310/0x310
[  393.517459]  ? task_prio+0x50/0x50
[  393.521000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.526540]  ? check_preemption_disabled+0x48/0x280
[  393.531562]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  393.536412]  apic_timer_interrupt+0xf/0x20
[  393.540639]  </IRQ>
[  393.542876] RIP: 0010:lock_acquire+0x268/0x520
[  393.547458] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  393.566352] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  393.574059] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  393.581319] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  393.588600] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  393.595863] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  393.603156] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  393.610460]  ? lruvec_lru_size+0x450/0x450
[  393.614691]  ? kasan_check_read+0x11/0x20
[  393.618837]  ? lock_release+0xa00/0xa00
[  393.622838]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  393.627771]  down_read_trylock+0xda/0x140
[  393.631914]  ? shrink_slab+0x207/0x8c0
[  393.635795]  ? downgrade_write+0x270/0x270
[  393.640040]  shrink_slab+0x207/0x8c0
[  393.643755]  ? shrink_active_list+0x1f00/0x1f00
[  393.648430]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  393.654056]  ? __lock_acquire+0x62f/0x4c20
[  393.658339]  ? percpu_ref_get_many+0x240/0x240
[  393.662939]  ? print_usage_bug+0xc0/0xc0
[  393.667007]  shrink_node+0x431/0x16b0
[  393.670809]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  393.676115]  ? shrink_node_memcg+0x18f0/0x18f0
[  393.680743]  ? kvm_clock_read+0x18/0x30
[  393.684721]  ? ktime_get+0x2c1/0x400
[  393.688456]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  393.692955]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  393.698490]  ? __cpuset_node_allowed+0x19b/0x660
[  393.703246]  ? mark_held_locks+0x130/0x130
[  393.707512]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  393.713221]  ? zap_class+0x640/0x640
[  393.716942]  do_try_to_free_pages+0x3e7/0x1290
[  393.721523]  ? zap_class+0x640/0x640
[  393.725249]  ? shrink_node+0x16b0/0x16b0
[  393.729310]  ? __lock_is_held+0xb5/0x140
[  393.733391]  try_to_free_pages+0x4d0/0xb90
[  393.737663]  ? do_try_to_free_pages+0x1290/0x1290
[  393.742521]  ? lock_acquire+0x1ed/0x520
[  393.746491]  ? set_page_refcounted+0x280/0x280
[  393.751080]  ? lock_release+0xa00/0xa00
[  393.755055]  ? _raw_spin_unlock_irq+0x60/0x80
[  393.759551]  ? psi_memstall_enter+0x240/0x2b0
[  393.764045]  ? psi_memstall_tick+0x230/0x230
[  393.768459]  __alloc_pages_slowpath+0xa48/0x2de0
[  393.773242]  ? warn_alloc+0x120/0x120
[  393.777041]  ? mark_held_locks+0x130/0x130
[  393.781288]  ? find_get_entry+0xaae/0x1120
[  393.785528]  ? filemap_map_pages+0x1a20/0x1a20
[  393.790114]  ? zap_class+0x640/0x640
[  393.793853]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  393.799389]  ? check_preemption_disabled+0x48/0x280
[  393.804503]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.810039]  ? should_fail+0x22d/0xd01
[  393.813927]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  393.819025]  ? zap_class+0x640/0x640
[  393.822773]  ? __lock_is_held+0xb5/0x140
[  393.826855]  ? mark_held_locks+0x130/0x130
[  393.831105]  ? lock_release+0xa00/0xa00
[  393.835084]  ? perf_trace_sched_process_exec+0x860/0x860
[  393.840531]  ? xa_load+0x2ba/0x460
[  393.844098]  ? lock_downgrade+0x900/0x900
[  393.848256]  ? __might_sleep+0x95/0x190
[  393.852247]  __alloc_pages_nodemask+0xad8/0xea0
[  393.856923]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  393.861955]  ? __page_cache_alloc+0x191/0x5c0
[  393.866447]  ? xa_load+0x2e1/0x460
[  393.869998]  ? xa_clear_mark+0x40/0x40
[  393.873882]  ? zap_class+0x640/0x640
[  393.877632]  ? zap_class+0x640/0x640
[  393.881348]  ? zap_class+0x640/0x640
[  393.885063]  ? __do_page_cache_readahead+0x663/0x810
[  393.890185]  ? find_held_lock+0x36/0x1c0
[  393.894251]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  393.899791]  alloc_pages_current+0x173/0x350
[  393.904206]  __page_cache_alloc+0x38c/0x5c0
[  393.908526]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.913452]  ? kasan_check_read+0x11/0x20
[  393.917600]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.922926]  ? generic_perform_write+0x6a0/0x6a0
[  393.927684]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  393.933237]  ? check_preemption_disabled+0x48/0x280
[  393.938264]  filemap_fault+0x1595/0x25f0
[  393.942344]  ? __lock_page_or_retry+0xa00/0xa00
[  393.947013]  ? mark_held_locks+0x130/0x130
[  393.951252]  ? filemap_map_pages+0xd6b/0x1a20
[  393.955749]  ? lock_downgrade+0x900/0x900
[  393.959896]  ? check_preemption_disabled+0x48/0x280
[  393.964939]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  393.969863]  ? kasan_check_read+0x11/0x20
[  393.974006]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  393.979275]  ? rcu_softirq_qs+0x20/0x20
[  393.983256]  ? filemap_map_pages+0xd92/0x1a20
[  393.987764]  ? find_get_entries_tag+0x1400/0x1400
[  393.992608]  ? debug_object_destroy+0x2b0/0x2b0
[  393.997278]  ? lock_pi_update_atomic+0x150/0x150
[  394.002030]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.007575]  ? lock_acquire+0x1ed/0x520
[  394.011576]  ? ext4_filemap_fault+0x7a/0xad
[  394.015902]  ? lock_release+0xa00/0xa00
[  394.019869]  ? perf_trace_sched_process_exec+0x860/0x860
[  394.025319]  ? print_usage_bug+0xc0/0xc0
[  394.029382]  ? print_usage_bug+0xc0/0xc0
[  394.033450]  ? down_read+0x8d/0x120
[  394.037071]  ? ext4_filemap_fault+0x7a/0xad
[  394.041387]  ? __down_interruptible+0x700/0x700
[  394.046056]  ext4_filemap_fault+0x82/0xad
[  394.050200]  __do_fault+0x100/0x6b0
[  394.053816]  ? find_held_lock+0x36/0x1c0
[  394.057869]  ? pmd_devmap_trans_unstable+0x220/0x220
[  394.062980]  ? mark_held_locks+0x130/0x130
[  394.067224]  ? mark_held_locks+0x130/0x130
[  394.071476]  ? kasan_check_read+0x11/0x20
[  394.075614]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.081166]  __handle_mm_fault+0x3ea0/0x5be0
[  394.085566]  ? perf_trace_lock+0x7a0/0x7a0
[  394.089804]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  394.094644]  ? __switch_to_asm+0x34/0x70
[  394.098704]  ? __switch_to_asm+0x34/0x70
[  394.102770]  ? zap_class+0x640/0x640
[  394.106539]  ? zap_class+0x640/0x640
[  394.110278]  ? __x64_sys_futex+0x53e/0x6a0
[  394.114540]  ? find_held_lock+0x36/0x1c0
[  394.118604]  ? handle_mm_fault+0x42a/0xc70
[  394.122890]  ? lock_downgrade+0x900/0x900
[  394.127039]  ? check_preemption_disabled+0x48/0x280
[  394.132057]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  394.136986]  ? kasan_check_read+0x11/0x20
[  394.141150]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.146463]  ? rcu_softirq_qs+0x20/0x20
[  394.150448]  ? trace_hardirqs_off_caller+0x310/0x310
[  394.155550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.161080]  ? sync_mm_rss+0x9a/0x1c0
[  394.164936]  handle_mm_fault+0x54f/0xc70
[  394.168994]  ? __handle_mm_fault+0x5be0/0x5be0
[  394.173571]  ? find_vma+0x34/0x190
[  394.177106]  __do_page_fault+0x5e8/0xe60
[  394.181177]  ? trace_hardirqs_off+0xb8/0x310
[  394.185593]  do_page_fault+0xf2/0x7e0
[  394.189389]  ? vmalloc_sync_all+0x30/0x30
[  394.193530]  ? error_entry+0x70/0xd0
[  394.197238]  ? trace_hardirqs_off_caller+0xbb/0x310
[  394.202264]  ? trace_hardirqs_on_caller+0xc0/0x310
[  394.207191]  ? syscall_return_slowpath+0x5e0/0x5e0
[  394.212111]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.216969]  ? trace_hardirqs_on_caller+0x310/0x310
[  394.221986]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  394.227448]  ? prepare_exit_to_usermode+0x291/0x3b0
[  394.232457]  ? page_fault+0x8/0x30
[  394.235988]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  394.240838]  ? page_fault+0x8/0x30
[  394.244388]  page_fault+0x1e/0x30
[  394.247835] RIP: 0033:0x45ddf3
[  394.251031] Code: Bad RIP value.
[  394.254386] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  394.259756] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  394.267013] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  394.274288] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  394.281547] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  394.288828] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  394.296114] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  394.296119] warn_alloc_show_mem: 1 callbacks suppressed
[  394.296125] Mem-Info:
[  394.303437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  394.308812] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  394.308812]  active_file:17 inactive_file:17 isolated_file:0
[  394.308812]  unevictable:0 dirty:4 writeback:0 unstable:0
[  394.308812]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  394.308812]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  394.308812]  free:13550 free_pcp:124 free_cma:0
[  394.311198] Call Trace:
[  394.320580] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  394.353593]  <IRQ>
[  394.356161] 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
[  394.383905]  dump_stack+0x244/0x39d
[  394.386027] lowmem_reserve[]: 0 2818 6321 6321
[  394.412119]  ? dump_stack_print_info.cold.1+0x20/0x20
[  394.415738] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  394.420323]  warn_alloc.cold.116+0xb7/0x1bd
[  394.425481] lowmem_reserve[]: 0 0 3503 3503
[  394.452811]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  394.457104] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  394.461462]  ? lock_downgrade+0x900/0x900
[  394.466287] lowmem_reserve[]: 0 0 0 0
[  394.495177]  ? trace_hardirqs_off+0xb8/0x310
[  394.499294] 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
[  394.503103]  ? trace_hardirqs_off+0xb8/0x310
[  394.507515] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  394.521038]  __alloc_pages_slowpath+0x2651/0x2de0
[  394.525415] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  394.540166]  ? warn_alloc+0x120/0x120
[  394.544967] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  394.559689]  ? print_usage_bug+0xc0/0xc0
[  394.563468] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  394.572288]  ? warn_alloc+0x120/0x120
[  394.576320] 1360 total pagecache pages
[  394.584881]  ? warn_alloc+0x120/0x120
[  394.588663] 0 pages in swap cache
[  394.592543]  ? print_usage_bug+0xc0/0xc0
[  394.596318] Swap cache stats: add 0, delete 0, find 0/0
[  394.599788]  ? kvm_clock_read+0x18/0x30
[  394.603820] Free swap  = 0kB
[  394.609171]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  394.613117] Total swap = 0kB
[  394.616155]  ? print_usage_bug+0xc0/0xc0
[  394.621152] 1965979 pages RAM
[  394.624166]  ? __lock_acquire+0x62f/0x4c20
[  394.628205] 0 pages HighMem/MovableOnly
[  394.631302]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  394.635507] 342854 pages reserved
[  394.639473]  ? should_fail+0x22d/0xd01
[  394.644980] 0 pages cma reserved
[  394.648429]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.652361] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  394.655648]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.661002] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  394.667387]  ? __lock_acquire+0x62f/0x4c20
[  394.672463] syz-fuzzer cpuset=/ mems_allowed=0
[  394.682679]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  394.696554]  ? __lock_acquire+0x62f/0x4c20
[  394.700833]  ? should_fail+0x22d/0xd01
[  394.704729]  ? rcu_irq_exit+0x1a2/0x390
[  394.708727]  ? mark_held_locks+0x130/0x130
[  394.712980]  ? mark_held_locks+0x130/0x130
[  394.717220]  ? mark_held_locks+0xc7/0x130
[  394.721367]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  394.726389]  ? zap_class+0x640/0x640
[  394.730109]  ? print_usage_bug+0xc0/0xc0
[  394.734195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.739746]  ? check_preemption_disabled+0x48/0x280
[  394.744767]  ? __lock_is_held+0xb5/0x140
[  394.748827]  __alloc_pages_nodemask+0xad8/0xea0
[  394.753491]  ? zap_class+0x640/0x640
[  394.757209]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  394.762235]  ? find_held_lock+0x36/0x1c0
[  394.766299]  ? ____cache_alloc_node+0x1c7/0x1e0
[  394.770964]  ? lock_downgrade+0x900/0x900
[  394.775114]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.780659]  cache_grow_begin+0xa5/0x8c0
[  394.784713]  ? do_raw_spin_unlock+0xa7/0x330
[  394.789117]  fallback_alloc+0x204/0x2e0
[  394.793095]  ____cache_alloc_node+0x1c7/0x1e0
[  394.797595]  kmem_cache_alloc_node+0xe3/0x730
[  394.802115]  ? ipv6_get_ifaddr+0x42e/0x620
[  394.806361]  __alloc_skb+0x119/0x770
[  394.810082]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.815379]  ? netdev_alloc_frag+0x1f0/0x1f0
[  394.819784]  ? lock_downgrade+0x900/0x900
[  394.823954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.829518]  ? refcount_sub_and_test_checked+0x203/0x310
[  394.834970]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  394.840432]  ? addrconf_rs_timer+0x690/0x690
[  394.844906]  ndisc_alloc_skb+0x144/0x340
[  394.848982]  ndisc_send_rs+0x331/0x6e0
[  394.852981]  addrconf_rs_timer+0x314/0x690
[  394.857220]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.861459]  call_timer_fn+0x272/0x920
[  394.865340]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.869585]  ? process_timeout+0x40/0x40
[  394.873654]  ? __run_timers+0x7da/0xc70
[  394.877630]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.882135]  ? _raw_spin_unlock_irq+0x27/0x80
[  394.886629]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.890863]  ? lockdep_hardirqs_on+0x296/0x5b0
[  394.895448]  ? trace_hardirqs_on+0xbd/0x310
[  394.899766]  ? kasan_check_read+0x11/0x20
[  394.903909]  ? __run_timers+0x7da/0xc70
[  394.907883]  ? trace_hardirqs_off_caller+0x310/0x310
[  394.913005]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.917247]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  394.921478]  __run_timers+0x7e5/0xc70
[  394.925307]  ? timer_fixup_init+0x70/0x70
[  394.929459]  ? kasan_check_read+0x11/0x20
[  394.933607]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  394.938881]  ? rcu_softirq_qs+0x20/0x20
[  394.942854]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.948637]  ? check_preemption_disabled+0x48/0x280
[  394.953663]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  394.958428]  ? retint_kernel+0x2d/0x2d
[  394.962328]  ? trace_hardirqs_on_caller+0xc0/0x310
[  394.967251]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  394.972005]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  394.977473]  ? zap_class+0x640/0x640
[  394.981192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  394.986730]  ? check_preemption_disabled+0x48/0x280
[  394.991796]  ? __lock_is_held+0xb5/0x140
[  394.995856]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.001394]  ? check_preemption_disabled+0x48/0x280
[  395.006441]  run_timer_softirq+0x52/0xb0
[  395.010505]  ? rcu_read_lock_sched_held+0x14f/0x180
[  395.015524]  __do_softirq+0x308/0xb7e
[  395.019333]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  395.023841]  ? lock_downgrade+0x900/0x900
[  395.028007]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  395.033159]  ? pvclock_read_flags+0x160/0x160
[  395.037662]  ? lapic_next_event+0x5a/0x90
[  395.041815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.047374]  ? kvm_clock_read+0x18/0x30
[  395.051351]  ? kvm_sched_clock_read+0x9/0x20
[  395.055795]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.061336]  ? check_preemption_disabled+0x48/0x280
[  395.066376]  irq_exit+0x17f/0x1c0
[  395.069863]  smp_apic_timer_interrupt+0x1cb/0x760
[  395.074703]  ? smp_reschedule_interrupt+0x109/0x650
[  395.079834]  ? smp_call_function_single_interrupt+0x650/0x650
[  395.085714]  ? interrupt_entry+0xb5/0xc0
[  395.089776]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.094804]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.099835]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.104679]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.109697]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.114712]  ? task_prio+0x50/0x50
[  395.118257]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.123797]  ? check_preemption_disabled+0x48/0x280
[  395.128818]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.133671]  apic_timer_interrupt+0xf/0x20
[  395.137902]  </IRQ>
[  395.140149] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  395.145082] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  395.163979] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  395.171689] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  395.178984] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  395.186260] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  395.193525] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  395.200790] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  395.208089]  skb_clone+0x1bb/0x500
[  395.211623]  ? skb_split+0x11e0/0x11e0
[  395.215558]  ? preempt_notifier_register+0x200/0x200
[  395.220667]  ? __switch_to_asm+0x34/0x70
[  395.224732]  ? __switch_to_asm+0x34/0x70
[  395.228814]  ? __switch_to_asm+0x40/0x70
[  395.232862]  ? __switch_to_asm+0x34/0x70
[  395.236911]  ? __switch_to_asm+0x40/0x70
[  395.240963]  ? __switch_to_asm+0x40/0x70
[  395.245031]  ? __switch_to_asm+0x34/0x70
[  395.249085]  ? __switch_to_asm+0x34/0x70
[  395.253147]  ? __switch_to_asm+0x40/0x70
[  395.257203]  ? __switch_to_asm+0x34/0x70
[  395.261276]  bpf_clone_redirect+0xb9/0x490
[  395.265529]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  395.270543]  ? __sched_text_start+0x8/0x8
[  395.274686]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  395.279478]  ? find_held_lock+0x36/0x1c0
[  395.283571]  ? lock_acquire+0x1ed/0x520
[  395.287561]  ? bpf_test_run+0x3ee/0x7a0
[  395.291529]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.297075]  ? check_preemption_disabled+0x48/0x280
[  395.302106]  ? kasan_check_read+0x11/0x20
[  395.306256]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.311546]  ? rcu_softirq_qs+0x20/0x20
[  395.315533]  ? preempt_schedule+0x4d/0x60
[  395.319681]  ? ___preempt_schedule+0x16/0x18
[  395.324093]  ? bpf_test_run+0x271/0x7a0
[  395.328087]  ? netlink_diag_dump+0x2a0/0x2a0
[  395.332508]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.338039]  ? bpf_test_init.isra.10+0x70/0x100
[  395.342711]  ? bpf_prog_test_run_skb+0x762/0xd60
[  395.347504]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  395.352357]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  395.357892]  ? fput+0x130/0x1a0
[  395.361176]  ? __bpf_prog_get+0x9b/0x290
[  395.365250]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  395.370144]  ? bpf_prog_test_run+0x130/0x1a0
[  395.374548]  ? __x64_sys_bpf+0x3d8/0x520
[  395.378620]  ? bpf_prog_get+0x20/0x20
[  395.382480]  ? do_syscall_64+0x1b9/0x820
[  395.386532]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  395.391888]  ? syscall_return_slowpath+0x5e0/0x5e0
[  395.396811]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.401655]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.406698]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  395.411712]  ? prepare_exit_to_usermode+0x291/0x3b0
[  395.416727]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.421573]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  395.426946] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  395.427075] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  395.433869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  395.433874] Call Trace:
[  395.433879]  <IRQ>
[  395.433894]  dump_stack+0x244/0x39d
[  395.433915]  ? dump_stack_print_info.cold.1+0x20/0x20
[  395.440471] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  395.450019]  warn_alloc.cold.116+0xb7/0x1bd
[  395.452571] syz-executor4 cpuset=syz4 mems_allowed=0
[  395.454713]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  395.488214]  ? lock_downgrade+0x900/0x900
[  395.492372]  ? trace_hardirqs_off+0xb8/0x310
[  395.496800]  ? trace_hardirqs_off+0xb8/0x310
[  395.501232]  __alloc_pages_slowpath+0x2651/0x2de0
[  395.506156]  ? warn_alloc+0x120/0x120
[  395.509974]  ? print_usage_bug+0xc0/0xc0
[  395.514032]  ? warn_alloc+0x120/0x120
[  395.517834]  ? warn_alloc+0x120/0x120
[  395.521632]  ? print_usage_bug+0xc0/0xc0
[  395.525699]  ? kvm_clock_read+0x18/0x30
[  395.529665]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  395.534679]  ? print_usage_bug+0xc0/0xc0
[  395.538740]  ? __lock_acquire+0x62f/0x4c20
[  395.542974]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.548508]  ? should_fail+0x22d/0xd01
[  395.552443]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.557716]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.562842]  ? __lock_acquire+0x62f/0x4c20
[  395.567108]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  395.572260]  ? __lock_acquire+0x62f/0x4c20
[  395.576488]  ? should_fail+0x22d/0xd01
[  395.580385]  ? rcu_irq_exit+0x1a2/0x390
[  395.584366]  ? mark_held_locks+0x130/0x130
[  395.588604]  ? mark_held_locks+0x130/0x130
[  395.592843]  ? mark_held_locks+0xc7/0x130
[  395.597000]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  395.602012]  ? zap_class+0x640/0x640
[  395.605723]  ? print_usage_bug+0xc0/0xc0
[  395.609786]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.615324]  ? check_preemption_disabled+0x48/0x280
[  395.620358]  ? __lock_is_held+0xb5/0x140
[  395.624423]  __alloc_pages_nodemask+0xad8/0xea0
[  395.629096]  ? zap_class+0x640/0x640
[  395.632831]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  395.637873]  ? find_held_lock+0x36/0x1c0
[  395.641961]  ? ____cache_alloc_node+0x1c7/0x1e0
[  395.646635]  ? lock_downgrade+0x900/0x900
[  395.650809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.656353]  cache_grow_begin+0xa5/0x8c0
[  395.660412]  ? do_raw_spin_unlock+0xa7/0x330
[  395.664826]  fallback_alloc+0x204/0x2e0
[  395.668810]  ____cache_alloc_node+0x1c7/0x1e0
[  395.673319]  kmem_cache_alloc_node+0xe3/0x730
[  395.677819]  ? ipv6_get_ifaddr+0x42e/0x620
[  395.682068]  __alloc_skb+0x119/0x770
[  395.685782]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  395.691064]  ? netdev_alloc_frag+0x1f0/0x1f0
[  395.695477]  ? lock_downgrade+0x900/0x900
[  395.699631]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.705180]  ? refcount_sub_and_test_checked+0x203/0x310
[  395.710636]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  395.716091]  ? addrconf_rs_timer+0x690/0x690
[  395.720524]  ndisc_alloc_skb+0x144/0x340
[  395.724589]  ndisc_send_rs+0x331/0x6e0
[  395.728478]  addrconf_rs_timer+0x314/0x690
[  395.732715]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.736972]  call_timer_fn+0x272/0x920
[  395.740859]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.745094]  ? process_timeout+0x40/0x40
[  395.749171]  ? mark_held_locks+0xc7/0x130
[  395.753320]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.757814]  ? _raw_spin_unlock_irq+0x27/0x80
[  395.762333]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.766564]  ? lockdep_hardirqs_on+0x296/0x5b0
[  395.771185]  ? trace_hardirqs_on+0xbd/0x310
[  395.775519]  ? kasan_check_read+0x11/0x20
[  395.779663]  ? __run_timers+0x7da/0xc70
[  395.783643]  ? trace_hardirqs_off_caller+0x310/0x310
[  395.788744]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.792976]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  395.797224]  __run_timers+0x7e5/0xc70
[  395.801068]  ? timer_fixup_init+0x70/0x70
[  395.805212]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  395.810224]  ? zap_class+0x640/0x640
[  395.813938]  ? print_usage_bug+0xc0/0xc0
[  395.817998]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  395.823212]  ? find_held_lock+0x36/0x1c0
[  395.827286]  ? zap_class+0x640/0x640
[  395.831016]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.836550]  ? check_preemption_disabled+0x48/0x280
[  395.841607]  ? __lock_is_held+0xb5/0x140
[  395.845697]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.851265]  ? check_preemption_disabled+0x48/0x280
[  395.856283]  run_timer_softirq+0x52/0xb0
[  395.860515]  ? rcu_read_lock_sched_held+0x14f/0x180
[  395.865528]  __do_softirq+0x308/0xb7e
[  395.869335]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  395.873841]  ? lock_downgrade+0x900/0x900
[  395.877989]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  395.883099]  ? pvclock_read_flags+0x160/0x160
[  395.887624]  ? lapic_next_event+0x5a/0x90
[  395.891773]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.897314]  ? kvm_clock_read+0x18/0x30
[  395.901308]  ? kvm_sched_clock_read+0x9/0x20
[  395.905721]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  395.911261]  ? check_preemption_disabled+0x48/0x280
[  395.916303]  irq_exit+0x17f/0x1c0
[  395.919760]  smp_apic_timer_interrupt+0x1cb/0x760
[  395.924602]  ? smp_reschedule_interrupt+0x109/0x650
[  395.929627]  ? smp_call_function_single_interrupt+0x650/0x650
[  395.935512]  ? interrupt_entry+0xb5/0xc0
[  395.939576]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.944592]  ? trace_hardirqs_off_caller+0xbb/0x310
[  395.949612]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.954456]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.959492]  ? trace_hardirqs_on_caller+0x310/0x310
[  395.964508]  ? task_prio+0x50/0x50
[  395.968079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  395.973628]  ? check_preemption_disabled+0x48/0x280
[  395.978673]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  395.983520]  apic_timer_interrupt+0xf/0x20
[  395.987762]  </IRQ>
[  395.990000] RIP: 0010:lock_acquire+0x268/0x520
[  395.994580] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  396.013476] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  396.021199] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  396.028464] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  396.035791] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  396.043086] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  396.050353] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  396.057642]  ? lruvec_lru_size+0x450/0x450
[  396.061874]  ? kasan_check_read+0x11/0x20
[  396.066025]  ? lock_release+0xa00/0xa00
[  396.070001]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  396.074943]  down_read_trylock+0xda/0x140
[  396.079089]  ? shrink_slab+0x207/0x8c0
[  396.082986]  ? downgrade_write+0x270/0x270
[  396.087222]  shrink_slab+0x207/0x8c0
[  396.090946]  ? shrink_active_list+0x1f00/0x1f00
[  396.095628]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  396.101265]  ? __lock_acquire+0x62f/0x4c20
[  396.105513]  ? percpu_ref_get_many+0x240/0x240
[  396.110143]  ? print_usage_bug+0xc0/0xc0
[  396.114208]  shrink_node+0x431/0x16b0
[  396.118014]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  396.123328]  ? shrink_node_memcg+0x18f0/0x18f0
[  396.127939]  ? kvm_clock_read+0x18/0x30
[  396.131916]  ? ktime_get+0x2c1/0x400
[  396.135626]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  396.140155]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  396.145688]  ? __cpuset_node_allowed+0x19b/0x660
[  396.150438]  ? mark_held_locks+0x130/0x130
[  396.154673]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  396.160384]  ? zap_class+0x640/0x640
[  396.164106]  do_try_to_free_pages+0x3e7/0x1290
[  396.168689]  ? zap_class+0x640/0x640
[  396.172414]  ? shrink_node+0x16b0/0x16b0
[  396.176476]  ? __lock_is_held+0xb5/0x140
[  396.180546]  try_to_free_pages+0x4d0/0xb90
[  396.184782]  ? do_try_to_free_pages+0x1290/0x1290
[  396.189647]  ? lock_acquire+0x1ed/0x520
[  396.193622]  ? set_page_refcounted+0x280/0x280
[  396.198211]  ? lock_release+0xa00/0xa00
[  396.202227]  ? _raw_spin_unlock_irq+0x60/0x80
[  396.206719]  ? psi_memstall_enter+0x240/0x2b0
[  396.211213]  ? psi_memstall_tick+0x230/0x230
[  396.215628]  __alloc_pages_slowpath+0xa48/0x2de0
[  396.220433]  ? warn_alloc+0x120/0x120
[  396.224224]  ? mark_held_locks+0x130/0x130
[  396.228470]  ? find_get_entry+0xaae/0x1120
[  396.232724]  ? filemap_map_pages+0x1a20/0x1a20
[  396.237318]  ? zap_class+0x640/0x640
[  396.241033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.246597]  ? check_preemption_disabled+0x48/0x280
[  396.251629]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.257183]  ? should_fail+0x22d/0xd01
[  396.261118]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  396.266239]  ? zap_class+0x640/0x640
[  396.269984]  ? __lock_is_held+0xb5/0x140
[  396.274052]  ? mark_held_locks+0x130/0x130
[  396.278288]  ? lock_release+0xa00/0xa00
[  396.282258]  ? perf_trace_sched_process_exec+0x860/0x860
[  396.287708]  ? xa_load+0x2ba/0x460
[  396.291276]  ? lock_downgrade+0x900/0x900
[  396.295435]  ? __might_sleep+0x95/0x190
[  396.299408]  __alloc_pages_nodemask+0xad8/0xea0
[  396.304078]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  396.309089]  ? __page_cache_alloc+0x191/0x5c0
[  396.313593]  ? xa_load+0x2e1/0x460
[  396.317136]  ? xa_clear_mark+0x40/0x40
[  396.321020]  ? zap_class+0x640/0x640
[  396.324748]  ? zap_class+0x640/0x640
[  396.328473]  ? zap_class+0x640/0x640
[  396.332179]  ? __do_page_cache_readahead+0x663/0x810
[  396.337278]  ? find_held_lock+0x36/0x1c0
[  396.341341]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  396.346891]  alloc_pages_current+0x173/0x350
[  396.351317]  __page_cache_alloc+0x38c/0x5c0
[  396.355632]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  396.360552]  ? kasan_check_read+0x11/0x20
[  396.364694]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.369978]  ? generic_perform_write+0x6a0/0x6a0
[  396.374727]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.380258]  ? check_preemption_disabled+0x48/0x280
[  396.385293]  filemap_fault+0x1595/0x25f0
[  396.389377]  ? __lock_page_or_retry+0xa00/0xa00
[  396.394049]  ? mark_held_locks+0x130/0x130
[  396.398284]  ? filemap_map_pages+0xd6b/0x1a20
[  396.402795]  ? lock_downgrade+0x900/0x900
[  396.406954]  ? check_preemption_disabled+0x48/0x280
[  396.411965]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  396.416907]  ? kasan_check_read+0x11/0x20
[  396.421046]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.426335]  ? rcu_softirq_qs+0x20/0x20
[  396.430314]  ? filemap_map_pages+0xd92/0x1a20
[  396.434847]  ? find_get_entries_tag+0x1400/0x1400
[  396.439703]  ? debug_object_destroy+0x2b0/0x2b0
[  396.444372]  ? lock_pi_update_atomic+0x150/0x150
[  396.449120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.454675]  ? lock_acquire+0x1ed/0x520
[  396.458642]  ? ext4_filemap_fault+0x7a/0xad
[  396.462992]  ? lock_release+0xa00/0xa00
[  396.466958]  ? perf_trace_sched_process_exec+0x860/0x860
[  396.472406]  ? print_usage_bug+0xc0/0xc0
[  396.476464]  ? print_usage_bug+0xc0/0xc0
[  396.480551]  ? down_read+0x8d/0x120
[  396.484172]  ? ext4_filemap_fault+0x7a/0xad
[  396.488489]  ? __down_interruptible+0x700/0x700
[  396.493166]  ext4_filemap_fault+0x82/0xad
[  396.497313]  __do_fault+0x100/0x6b0
[  396.500935]  ? find_held_lock+0x36/0x1c0
[  396.504992]  ? pmd_devmap_trans_unstable+0x220/0x220
[  396.510106]  ? mark_held_locks+0x130/0x130
[  396.514343]  ? mark_held_locks+0x130/0x130
[  396.518614]  ? kasan_check_read+0x11/0x20
[  396.522776]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  396.528315]  __handle_mm_fault+0x3ea0/0x5be0
[  396.532718]  ? perf_trace_lock+0x7a0/0x7a0
[  396.536970]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  396.541813]  ? __switch_to_asm+0x34/0x70
[  396.545868]  ? __switch_to_asm+0x34/0x70
[  396.549940]  ? zap_class+0x640/0x640
[  396.553648]  ? zap_class+0x640/0x640
[  396.557354]  ? __x64_sys_futex+0x53e/0x6a0
[  396.561583]  ? find_held_lock+0x36/0x1c0
[  396.565649]  ? handle_mm_fault+0x42a/0xc70
[  396.569895]  ? lock_downgrade+0x900/0x900
[  396.574043]  ? check_preemption_disabled+0x48/0x280
[  396.579056]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  396.583979]  ? kasan_check_read+0x11/0x20
[  396.588120]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  396.593408]  ? rcu_softirq_qs+0x20/0x20
[  396.597377]  ? trace_hardirqs_off_caller+0x310/0x310
[  396.602494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  396.608040]  ? sync_mm_rss+0x9a/0x1c0
[  396.611863]  handle_mm_fault+0x54f/0xc70
[  396.615928]  ? __handle_mm_fault+0x5be0/0x5be0
[  396.620511]  ? find_vma+0x34/0x190
[  396.624052]  __do_page_fault+0x5e8/0xe60
[  396.628120]  ? trace_hardirqs_off+0xb8/0x310
[  396.632599]  do_page_fault+0xf2/0x7e0
[  396.636396]  ? vmalloc_sync_all+0x30/0x30
[  396.640542]  ? error_entry+0x70/0xd0
[  396.644265]  ? trace_hardirqs_off_caller+0xbb/0x310
[  396.649274]  ? trace_hardirqs_on_caller+0xc0/0x310
[  396.654200]  ? syscall_return_slowpath+0x5e0/0x5e0
[  396.659123]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.663993]  ? trace_hardirqs_on_caller+0x310/0x310
[  396.669006]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  396.674462]  ? prepare_exit_to_usermode+0x291/0x3b0
[  396.679513]  ? page_fault+0x8/0x30
[  396.683090]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  396.687937]  ? page_fault+0x8/0x30
[  396.691480]  page_fault+0x1e/0x30
[  396.694947] RIP: 0033:0x45ddf3
[  396.698153] Code: Bad RIP value.
[  396.701511] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  396.706880] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  396.714159] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  396.721422] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  396.728700] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  396.735991] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  396.743330] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  396.743335] warn_alloc_show_mem: 1 callbacks suppressed
[  396.743342] Mem-Info:
[  396.750611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  396.755977] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  396.755977]  active_file:17 inactive_file:17 isolated_file:0
[  396.755977]  unevictable:0 dirty:4 writeback:0 unstable:0
[  396.755977]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  396.755977]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  396.755977]  free:13550 free_pcp:124 free_cma:0
[  396.758348] Call Trace:
[  396.767780] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  396.800793]  <IRQ>
[  396.803363] 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
[  396.831111]  dump_stack+0x244/0x39d
[  396.833233] lowmem_reserve[]: 0 2818 6321 6321
[  396.859342]  ? dump_stack_print_info.cold.1+0x20/0x20
[  396.862940] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  396.867519]  warn_alloc.cold.116+0xb7/0x1bd
[  396.872675] lowmem_reserve[]: 0 0 3503 3503
[  396.899991]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  396.904307] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  396.908631]  ? lock_downgrade+0x900/0x900
[  396.913448] lowmem_reserve[]: 0 0 0 0
[  396.942350]  ? trace_hardirqs_off+0xb8/0x310
[  396.946471] 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
[  396.950472]  ? trace_hardirqs_off+0xb8/0x310
[  396.954857] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  396.968376]  __alloc_pages_slowpath+0x2651/0x2de0
[  396.972760] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  396.987516]  ? warn_alloc+0x120/0x120
[  396.992350] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  397.007074]  ? print_usage_bug+0xc0/0xc0
[  397.010872] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  397.019692]  ? warn_alloc+0x120/0x120
[  397.023729] 1360 total pagecache pages
[  397.032326]  ? warn_alloc+0x120/0x120
[  397.036145] 0 pages in swap cache
[  397.040025]  ? print_usage_bug+0xc0/0xc0
[  397.043817] Swap cache stats: add 0, delete 0, find 0/0
[  397.047259]  ? print_usage_bug+0xc0/0xc0
[  397.051290] Free swap  = 0kB
[  397.056650]  ? __lock_acquire+0x62f/0x4c20
[  397.060679] Total swap = 0kB
[  397.063686]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.067889] 1965979 pages RAM
[  397.070909]  ? should_fail+0x22d/0xd01
[  397.076417] 0 pages HighMem/MovableOnly
[  397.079593]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.079600]  ? __lock_acquire+0x62f/0x4c20
[  397.079608]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.079614]  ? __lock_acquire+0x62f/0x4c20
[  397.079620]  ? should_fail+0x22d/0xd01
[  397.079626]  ? find_held_lock+0x36/0x1c0
[  397.079635]  ? mark_held_locks+0x130/0x130
[  397.079644]  ? mark_held_locks+0x130/0x130
[  397.079649]  ? zap_class+0x640/0x640
[  397.079655]  ? zap_class+0x640/0x640
[  397.079662]  ? print_usage_bug+0xc0/0xc0
[  397.079668]  ? do_raw_spin_unlock+0xa7/0x330
[  397.079674]  ? zap_class+0x640/0x640
[  397.079680]  ? print_usage_bug+0xc0/0xc0
[  397.079687]  ? wq_watchdog_touch+0x9c/0xfe
[  397.079695]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.079703]  ? check_preemption_disabled+0x48/0x280
[  397.079713]  ? __lock_is_held+0xb5/0x140
[  397.079722]  __alloc_pages_nodemask+0xad8/0xea0
[  397.079728]  ? zap_class+0x640/0x640
[  397.079736]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  397.079747]  ? find_held_lock+0x36/0x1c0
[  397.079758]  ? ____cache_alloc_node+0x1c7/0x1e0
[  397.079765]  ? lock_downgrade+0x900/0x900
[  397.079774]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.079783]  cache_grow_begin+0xa5/0x8c0
[  397.079788]  ? do_raw_spin_unlock+0xa7/0x330
[  397.079798]  fallback_alloc+0x204/0x2e0
[  397.079806]  ____cache_alloc_node+0x1c7/0x1e0
[  397.079815]  kmem_cache_alloc_node+0xe3/0x730
[  397.079822]  ? ipv6_get_ifaddr+0x42e/0x620
[  397.079834]  __alloc_skb+0x119/0x770
[  397.079841]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.079848]  ? netdev_alloc_frag+0x1f0/0x1f0
[  397.079855]  ? lock_downgrade+0x900/0x900
[  397.079864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.079871]  ? refcount_sub_and_test_checked+0x203/0x310
[  397.079879]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  397.079885]  ? addrconf_rs_timer+0x690/0x690
[  397.079896]  ndisc_alloc_skb+0x144/0x340
[  397.079906]  ndisc_send_rs+0x331/0x6e0
[  397.079936]  addrconf_rs_timer+0x314/0x690
[  397.079966]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.083843] 342854 pages reserved
[  397.087868]  call_timer_fn+0x272/0x920
[  397.092964] 0 pages cma reserved
[  397.097187]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.102350] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  397.106540]  ? process_timeout+0x40/0x40
[  397.110475] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  397.114470]  ? __run_timers+0x7da/0xc70
[  397.118703] syz-fuzzer cpuset=/ mems_allowed=0
[  397.122954]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.326295]  ? _raw_spin_unlock_irq+0x27/0x80
[  397.330794]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.335023]  ? lockdep_hardirqs_on+0x296/0x5b0
[  397.339629]  ? trace_hardirqs_on+0xbd/0x310
[  397.343965]  ? kasan_check_read+0x11/0x20
[  397.348123]  ? __run_timers+0x7da/0xc70
[  397.352104]  ? trace_hardirqs_off_caller+0x310/0x310
[  397.357214]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.361448]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  397.365683]  __run_timers+0x7e5/0xc70
[  397.369496]  ? timer_fixup_init+0x70/0x70
[  397.373649]  ? kasan_check_read+0x11/0x20
[  397.377825]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.383139]  ? rcu_softirq_qs+0x20/0x20
[  397.387134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.392706]  ? check_preemption_disabled+0x48/0x280
[  397.397730]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  397.402520]  ? retint_kernel+0x2d/0x2d
[  397.406433]  ? trace_hardirqs_on_caller+0xc0/0x310
[  397.411375]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  397.416151]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  397.421595]  ? zap_class+0x640/0x640
[  397.425337]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.430867]  ? check_preemption_disabled+0x48/0x280
[  397.435880]  ? __lock_is_held+0xb5/0x140
[  397.439941]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.445489]  ? check_preemption_disabled+0x48/0x280
[  397.450518]  run_timer_softirq+0x52/0xb0
[  397.454606]  ? rcu_read_lock_sched_held+0x14f/0x180
[  397.459616]  __do_softirq+0x308/0xb7e
[  397.463448]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  397.467938]  ? lock_downgrade+0x900/0x900
[  397.472086]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  397.477194]  ? pvclock_read_flags+0x160/0x160
[  397.481691]  ? lapic_next_event+0x5a/0x90
[  397.485836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.491373]  ? kvm_clock_read+0x18/0x30
[  397.495363]  ? kvm_sched_clock_read+0x9/0x20
[  397.499792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.505356]  ? check_preemption_disabled+0x48/0x280
[  397.510377]  irq_exit+0x17f/0x1c0
[  397.513853]  smp_apic_timer_interrupt+0x1cb/0x760
[  397.518695]  ? smp_reschedule_interrupt+0x109/0x650
[  397.523709]  ? smp_call_function_single_interrupt+0x650/0x650
[  397.529624]  ? interrupt_entry+0xb5/0xc0
[  397.533684]  ? trace_hardirqs_off_caller+0xbb/0x310
[  397.538700]  ? trace_hardirqs_off_caller+0xbb/0x310
[  397.543714]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.548554]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.553567]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.558602]  ? task_prio+0x50/0x50
[  397.562161]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.567725]  ? check_preemption_disabled+0x48/0x280
[  397.572752]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.577598]  apic_timer_interrupt+0xf/0x20
[  397.581841]  </IRQ>
[  397.584077] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  397.589019] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  397.607916] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  397.615621] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  397.622902] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  397.630165] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  397.637458] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  397.644732] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  397.652045]  skb_clone+0x1bb/0x500
[  397.655613]  ? skb_split+0x11e0/0x11e0
[  397.659498]  ? preempt_notifier_register+0x200/0x200
[  397.664595]  ? __switch_to_asm+0x34/0x70
[  397.668654]  ? __switch_to_asm+0x34/0x70
[  397.672741]  ? __switch_to_asm+0x40/0x70
[  397.676824]  ? __switch_to_asm+0x34/0x70
[  397.680881]  ? __switch_to_asm+0x40/0x70
[  397.684944]  ? __switch_to_asm+0x40/0x70
[  397.688999]  ? __switch_to_asm+0x34/0x70
[  397.693056]  ? __switch_to_asm+0x34/0x70
[  397.697112]  ? __switch_to_asm+0x40/0x70
[  397.701182]  ? __switch_to_asm+0x34/0x70
[  397.705245]  bpf_clone_redirect+0xb9/0x490
[  397.709490]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  397.714508]  ? __sched_text_start+0x8/0x8
[  397.718651]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  397.723436]  ? find_held_lock+0x36/0x1c0
[  397.727507]  ? lock_acquire+0x1ed/0x520
[  397.731502]  ? bpf_test_run+0x3ee/0x7a0
[  397.735472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  397.741004]  ? check_preemption_disabled+0x48/0x280
[  397.746028]  ? kasan_check_read+0x11/0x20
[  397.750171]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  397.755460]  ? rcu_softirq_qs+0x20/0x20
[  397.759439]  ? preempt_schedule+0x4d/0x60
[  397.763588]  ? ___preempt_schedule+0x16/0x18
[  397.768003]  ? bpf_test_run+0x271/0x7a0
[  397.771985]  ? netlink_diag_dump+0x2a0/0x2a0
[  397.776391]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.781931]  ? bpf_test_init.isra.10+0x70/0x100
[  397.786607]  ? bpf_prog_test_run_skb+0x762/0xd60
[  397.791385]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  397.796235]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  397.801772]  ? fput+0x130/0x1a0
[  397.805072]  ? __bpf_prog_get+0x9b/0x290
[  397.809142]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  397.813993]  ? bpf_prog_test_run+0x130/0x1a0
[  397.818406]  ? __x64_sys_bpf+0x3d8/0x520
[  397.822461]  ? bpf_prog_get+0x20/0x20
[  397.826275]  ? do_syscall_64+0x1b9/0x820
[  397.830355]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  397.835727]  ? syscall_return_slowpath+0x5e0/0x5e0
[  397.840667]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.845522]  ? trace_hardirqs_on_caller+0x310/0x310
[  397.850533]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  397.855561]  ? prepare_exit_to_usermode+0x291/0x3b0
[  397.860622]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  397.865487]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  397.870866] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  397.870948] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  397.877827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  397.884410] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  397.893679] Call Trace:
[  397.904153] syz-executor4 cpuset=syz4 mems_allowed=0
[  397.906753]  <IRQ>
[  397.913991]  dump_stack+0x244/0x39d
[  397.917626]  ? dump_stack_print_info.cold.1+0x20/0x20
[  397.922855]  warn_alloc.cold.116+0xb7/0x1bd
[  397.927182]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  397.932027]  ? lock_downgrade+0x900/0x900
[  397.936180]  ? trace_hardirqs_off+0xb8/0x310
[  397.940602]  ? trace_hardirqs_off+0xb8/0x310
[  397.945025]  __alloc_pages_slowpath+0x2651/0x2de0
[  397.949915]  ? warn_alloc+0x120/0x120
[  397.953719]  ? print_usage_bug+0xc0/0xc0
[  397.957780]  ? warn_alloc+0x120/0x120
[  397.961607]  ? warn_alloc+0x120/0x120
[  397.965419]  ? print_usage_bug+0xc0/0xc0
[  397.969484]  ? print_usage_bug+0xc0/0xc0
[  397.973574]  ? __lock_acquire+0x62f/0x4c20
[  397.977834]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  397.983375]  ? should_fail+0x22d/0xd01
[  397.987268]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  397.992372]  ? __lock_acquire+0x62f/0x4c20
[  397.996643]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.001744]  ? __lock_acquire+0x62f/0x4c20
[  398.005975]  ? should_fail+0x22d/0xd01
[  398.009857]  ? find_held_lock+0x36/0x1c0
[  398.013931]  ? mark_held_locks+0x130/0x130
[  398.018171]  ? mark_held_locks+0x130/0x130
[  398.022397]  ? zap_class+0x640/0x640
[  398.026107]  ? zap_class+0x640/0x640
[  398.029839]  ? print_usage_bug+0xc0/0xc0
[  398.033908]  ? do_raw_spin_unlock+0xa7/0x330
[  398.038307]  ? zap_class+0x640/0x640
[  398.042026]  ? print_usage_bug+0xc0/0xc0
[  398.046095]  ? wq_watchdog_touch+0x9c/0xfe
[  398.050369]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.055908]  ? check_preemption_disabled+0x48/0x280
[  398.060929]  ? __lock_is_held+0xb5/0x140
[  398.064990]  __alloc_pages_nodemask+0xad8/0xea0
[  398.069655]  ? zap_class+0x640/0x640
[  398.073379]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  398.078418]  ? find_held_lock+0x36/0x1c0
[  398.082490]  ? ____cache_alloc_node+0x1c7/0x1e0
[  398.087195]  ? lock_downgrade+0x900/0x900
[  398.091355]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.096899]  cache_grow_begin+0xa5/0x8c0
[  398.100966]  ? do_raw_spin_unlock+0xa7/0x330
[  398.105382]  fallback_alloc+0x204/0x2e0
[  398.109361]  ____cache_alloc_node+0x1c7/0x1e0
[  398.113863]  kmem_cache_alloc_node+0xe3/0x730
[  398.118360]  ? ipv6_get_ifaddr+0x42e/0x620
[  398.122605]  __alloc_skb+0x119/0x770
[  398.126331]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.131620]  ? netdev_alloc_frag+0x1f0/0x1f0
[  398.136027]  ? lock_downgrade+0x900/0x900
[  398.140180]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.145716]  ? refcount_sub_and_test_checked+0x203/0x310
[  398.151184]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  398.156649]  ? addrconf_rs_timer+0x690/0x690
[  398.161075]  ndisc_alloc_skb+0x144/0x340
[  398.165144]  ndisc_send_rs+0x331/0x6e0
[  398.169033]  addrconf_rs_timer+0x314/0x690
[  398.173315]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.177569]  call_timer_fn+0x272/0x920
[  398.181468]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.185718]  ? process_timeout+0x40/0x40
[  398.189798]  ? mark_held_locks+0xc7/0x130
[  398.193959]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.198448]  ? _raw_spin_unlock_irq+0x27/0x80
[  398.202936]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.207165]  ? lockdep_hardirqs_on+0x296/0x5b0
[  398.211751]  ? trace_hardirqs_on+0xbd/0x310
[  398.216102]  ? kasan_check_read+0x11/0x20
[  398.220256]  ? __run_timers+0x7da/0xc70
[  398.224229]  ? trace_hardirqs_off_caller+0x310/0x310
[  398.229350]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  398.233625]  __run_timers+0x7e5/0xc70
[  398.237473]  ? timer_fixup_init+0x70/0x70
[  398.241632]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  398.246641]  ? zap_class+0x640/0x640
[  398.250370]  ? print_usage_bug+0xc0/0xc0
[  398.254451]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  398.259642]  ? find_held_lock+0x36/0x1c0
[  398.263708]  ? zap_class+0x640/0x640
[  398.267452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.272997]  ? check_preemption_disabled+0x48/0x280
[  398.278019]  ? __lock_is_held+0xb5/0x140
[  398.282088]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.287664]  ? check_preemption_disabled+0x48/0x280
[  398.292698]  run_timer_softirq+0x52/0xb0
[  398.296755]  ? rcu_read_lock_sched_held+0x14f/0x180
[  398.301768]  __do_softirq+0x308/0xb7e
[  398.305567]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  398.310063]  ? lock_downgrade+0x900/0x900
[  398.314220]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  398.319328]  ? pvclock_read_flags+0x160/0x160
[  398.323820]  ? lapic_next_event+0x5a/0x90
[  398.327980]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.333529]  ? kvm_clock_read+0x18/0x30
[  398.337497]  ? kvm_sched_clock_read+0x9/0x20
[  398.341898]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.347439]  ? check_preemption_disabled+0x48/0x280
[  398.352482]  irq_exit+0x17f/0x1c0
[  398.355949]  smp_apic_timer_interrupt+0x1cb/0x760
[  398.360814]  ? smp_reschedule_interrupt+0x109/0x650
[  398.365828]  ? smp_call_function_single_interrupt+0x650/0x650
[  398.371707]  ? interrupt_entry+0xb5/0xc0
[  398.375765]  ? trace_hardirqs_off_caller+0xbb/0x310
[  398.380774]  ? trace_hardirqs_off_caller+0xbb/0x310
[  398.385787]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.390623]  ? trace_hardirqs_on_caller+0x310/0x310
[  398.395645]  ? trace_hardirqs_on_caller+0x310/0x310
[  398.400655]  ? task_prio+0x50/0x50
[  398.404209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.409746]  ? check_preemption_disabled+0x48/0x280
[  398.414765]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  398.419616]  apic_timer_interrupt+0xf/0x20
[  398.423838]  </IRQ>
[  398.426072] RIP: 0010:lock_acquire+0x268/0x520
[  398.430667] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  398.449574] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  398.457303] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  398.464570] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  398.471838] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  398.479099] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  398.486383] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  398.493668]  ? lruvec_lru_size+0x450/0x450
[  398.497896]  ? kasan_check_read+0x11/0x20
[  398.502043]  ? lock_release+0xa00/0xa00
[  398.506026]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  398.510981]  down_read_trylock+0xda/0x140
[  398.515123]  ? shrink_slab+0x207/0x8c0
[  398.519019]  ? downgrade_write+0x270/0x270
[  398.523264]  shrink_slab+0x207/0x8c0
[  398.526981]  ? shrink_active_list+0x1f00/0x1f00
[  398.531672]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  398.537297]  ? __lock_acquire+0x62f/0x4c20
[  398.541540]  ? percpu_ref_get_many+0x240/0x240
[  398.546150]  ? print_usage_bug+0xc0/0xc0
[  398.550240]  shrink_node+0x431/0x16b0
[  398.554042]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  398.559345]  ? shrink_node_memcg+0x18f0/0x18f0
[  398.563935]  ? kvm_clock_read+0x18/0x30
[  398.567919]  ? ktime_get+0x2c1/0x400
[  398.571637]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  398.576145]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  398.581702]  ? __cpuset_node_allowed+0x19b/0x660
[  398.586456]  ? mark_held_locks+0x130/0x130
[  398.590696]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  398.596409]  ? zap_class+0x640/0x640
[  398.600144]  do_try_to_free_pages+0x3e7/0x1290
[  398.604728]  ? zap_class+0x640/0x640
[  398.608458]  ? shrink_node+0x16b0/0x16b0
[  398.612524]  ? __lock_is_held+0xb5/0x140
[  398.616603]  try_to_free_pages+0x4d0/0xb90
[  398.620842]  ? do_try_to_free_pages+0x1290/0x1290
[  398.625698]  ? lock_acquire+0x1ed/0x520
[  398.629672]  ? set_page_refcounted+0x280/0x280
[  398.634263]  ? lock_release+0xa00/0xa00
[  398.638235]  ? _raw_spin_unlock_irq+0x60/0x80
[  398.642730]  ? psi_memstall_enter+0x240/0x2b0
[  398.647230]  ? psi_memstall_tick+0x230/0x230
[  398.651654]  __alloc_pages_slowpath+0xa48/0x2de0
[  398.656436]  ? warn_alloc+0x120/0x120
[  398.660237]  ? mark_held_locks+0x130/0x130
[  398.664479]  ? find_get_entry+0xaae/0x1120
[  398.668729]  ? filemap_map_pages+0x1a20/0x1a20
[  398.673320]  ? zap_class+0x640/0x640
[  398.677040]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.682582]  ? check_preemption_disabled+0x48/0x280
[  398.687597]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.693146]  ? should_fail+0x22d/0xd01
[  398.697040]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  398.702151]  ? zap_class+0x640/0x640
[  398.705896]  ? __lock_is_held+0xb5/0x140
[  398.709984]  ? mark_held_locks+0x130/0x130
[  398.714225]  ? lock_release+0xa00/0xa00
[  398.718201]  ? perf_trace_sched_process_exec+0x860/0x860
[  398.723653]  ? xa_load+0x2ba/0x460
[  398.727214]  ? lock_downgrade+0x900/0x900
[  398.731367]  ? __might_sleep+0x95/0x190
[  398.735349]  __alloc_pages_nodemask+0xad8/0xea0
[  398.740025]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  398.745041]  ? __page_cache_alloc+0x191/0x5c0
[  398.749533]  ? xa_load+0x2e1/0x460
[  398.753071]  ? xa_clear_mark+0x40/0x40
[  398.756954]  ? zap_class+0x640/0x640
[  398.760670]  ? zap_class+0x640/0x640
[  398.764392]  ? zap_class+0x640/0x640
[  398.768099]  ? __do_page_cache_readahead+0x663/0x810
[  398.773227]  ? find_held_lock+0x36/0x1c0
[  398.777292]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  398.782868]  alloc_pages_current+0x173/0x350
[  398.787314]  __page_cache_alloc+0x38c/0x5c0
[  398.791632]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.796559]  ? kasan_check_read+0x11/0x20
[  398.800714]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.805989]  ? generic_perform_write+0x6a0/0x6a0
[  398.810738]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.816293]  ? check_preemption_disabled+0x48/0x280
[  398.821318]  filemap_fault+0x1595/0x25f0
[  398.825391]  ? __lock_page_or_retry+0xa00/0xa00
[  398.830085]  ? mark_held_locks+0x130/0x130
[  398.834325]  ? filemap_map_pages+0xd6b/0x1a20
[  398.838820]  ? lock_downgrade+0x900/0x900
[  398.842967]  ? check_preemption_disabled+0x48/0x280
[  398.847982]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  398.852911]  ? kasan_check_read+0x11/0x20
[  398.857068]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  398.862335]  ? rcu_softirq_qs+0x20/0x20
[  398.866332]  ? filemap_map_pages+0xd92/0x1a20
[  398.870846]  ? find_get_entries_tag+0x1400/0x1400
[  398.875686]  ? debug_object_destroy+0x2b0/0x2b0
[  398.880359]  ? lock_pi_update_atomic+0x150/0x150
[  398.885106]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  398.890692]  ? lock_acquire+0x1ed/0x520
[  398.894694]  ? ext4_filemap_fault+0x7a/0xad
[  398.899017]  ? lock_release+0xa00/0xa00
[  398.902986]  ? perf_trace_sched_process_exec+0x860/0x860
[  398.908448]  ? print_usage_bug+0xc0/0xc0
[  398.912508]  ? print_usage_bug+0xc0/0xc0
[  398.916578]  ? down_read+0x8d/0x120
[  398.920197]  ? ext4_filemap_fault+0x7a/0xad
[  398.924532]  ? __down_interruptible+0x700/0x700
[  398.929211]  ext4_filemap_fault+0x82/0xad
[  398.933363]  __do_fault+0x100/0x6b0
[  398.936988]  ? find_held_lock+0x36/0x1c0
[  398.941052]  ? pmd_devmap_trans_unstable+0x220/0x220
[  398.946163]  ? mark_held_locks+0x130/0x130
[  398.950561]  ? mark_held_locks+0x130/0x130
[  398.954836]  ? kasan_check_read+0x11/0x20
[  398.958981]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  398.964572]  __handle_mm_fault+0x3ea0/0x5be0
[  398.968992]  ? perf_trace_lock+0x7a0/0x7a0
[  398.973237]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  398.978091]  ? __switch_to_asm+0x34/0x70
[  398.982152]  ? __switch_to_asm+0x34/0x70
[  398.986221]  ? zap_class+0x640/0x640
[  398.989934]  ? zap_class+0x640/0x640
[  398.993652]  ? __x64_sys_futex+0x53e/0x6a0
[  398.997885]  ? find_held_lock+0x36/0x1c0
[  399.001955]  ? handle_mm_fault+0x42a/0xc70
[  399.006191]  ? lock_downgrade+0x900/0x900
[  399.010338]  ? check_preemption_disabled+0x48/0x280
[  399.015353]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  399.020281]  ? kasan_check_read+0x11/0x20
[  399.024423]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.029695]  ? rcu_softirq_qs+0x20/0x20
[  399.033662]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.038780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.044343]  ? sync_mm_rss+0x9a/0x1c0
[  399.048153]  handle_mm_fault+0x54f/0xc70
[  399.052217]  ? __handle_mm_fault+0x5be0/0x5be0
[  399.056821]  ? find_vma+0x34/0x190
[  399.060371]  __do_page_fault+0x5e8/0xe60
[  399.064434]  ? trace_hardirqs_off+0xb8/0x310
[  399.068859]  do_page_fault+0xf2/0x7e0
[  399.072662]  ? vmalloc_sync_all+0x30/0x30
[  399.076814]  ? error_entry+0x70/0xd0
[  399.081015]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.086033]  ? trace_hardirqs_on_caller+0xc0/0x310
[  399.090967]  ? syscall_return_slowpath+0x5e0/0x5e0
[  399.095898]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.100749]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.105766]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  399.111224]  ? prepare_exit_to_usermode+0x291/0x3b0
[  399.116252]  ? page_fault+0x8/0x30
[  399.119800]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.124659]  ? page_fault+0x8/0x30
[  399.128199]  page_fault+0x1e/0x30
[  399.131651] RIP: 0033:0x45ddf3
[  399.134853] Code: Bad RIP value.
[  399.138217] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  399.143583] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  399.150851] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  399.158116] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  399.165395] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  399.172675] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  399.179972] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  399.179977] warn_alloc_show_mem: 1 callbacks suppressed
[  399.179984] Mem-Info:
[  399.187253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  399.192632] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  399.192632]  active_file:17 inactive_file:17 isolated_file:0
[  399.192632]  unevictable:0 dirty:4 writeback:0 unstable:0
[  399.192632]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  399.192632]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  399.192632]  free:13550 free_pcp:124 free_cma:0
[  399.195006] Call Trace:
[  399.204412] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  399.237461]  <IRQ>
[  399.240030] 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
[  399.267777]  dump_stack+0x244/0x39d
[  399.269914] lowmem_reserve[]: 0 2818 6321 6321
[  399.296015]  ? dump_stack_print_info.cold.1+0x20/0x20
[  399.299611] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  399.304214]  warn_alloc.cold.116+0xb7/0x1bd
[  399.309368] lowmem_reserve[]: 0 0 3503 3503
[  399.336695]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  399.340989] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  399.345314]  ? lock_downgrade+0x900/0x900
[  399.350124] lowmem_reserve[]: 0 0 0 0
[  399.379031]  ? trace_hardirqs_off+0xb8/0x310
[  399.383197] 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
[  399.387023]  ? trace_hardirqs_off+0xb8/0x310
[  399.391433] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  399.404962]  __alloc_pages_slowpath+0x2651/0x2de0
[  399.409357] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  399.424103]  ? warn_alloc+0x120/0x120
[  399.428906] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  399.443637]  ? print_usage_bug+0xc0/0xc0
[  399.447443] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  399.456257]  ? warn_alloc+0x120/0x120
[  399.460293] 1360 total pagecache pages
[  399.468858]  ? warn_alloc+0x120/0x120
[  399.472638] 0 pages in swap cache
[  399.476506]  ? print_usage_bug+0xc0/0xc0
[  399.480282] Swap cache stats: add 0, delete 0, find 0/0
[  399.483739]  ? kvm_clock_read+0x18/0x30
[  399.487771] Free swap  = 0kB
[  399.493121]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  399.497076] Total swap = 0kB
[  399.500079]  ? print_usage_bug+0xc0/0xc0
[  399.505067] 1965979 pages RAM
[  399.508070]  ? __lock_acquire+0x62f/0x4c20
[  399.512099] 0 pages HighMem/MovableOnly
[  399.515240]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  399.519447] 342854 pages reserved
[  399.523414]  ? should_fail+0x22d/0xd01
[  399.528916] 0 pages cma reserved
[  399.532353]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.536296] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  399.539572]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.544908] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  399.551298]  ? __lock_acquire+0x62f/0x4c20
[  399.556374] syz-fuzzer cpuset=/ mems_allowed=0
[  399.566625]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  399.580584]  ? __lock_acquire+0x62f/0x4c20
[  399.584810]  ? should_fail+0x22d/0xd01
[  399.588689]  ? rcu_irq_exit+0x1a2/0x390
[  399.592682]  ? mark_held_locks+0x130/0x130
[  399.596956]  ? mark_held_locks+0x130/0x130
[  399.601219]  ? mark_held_locks+0xc7/0x130
[  399.605409]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  399.610462]  ? zap_class+0x640/0x640
[  399.614171]  ? print_usage_bug+0xc0/0xc0
[  399.618229]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.623760]  ? check_preemption_disabled+0x48/0x280
[  399.628792]  ? __lock_is_held+0xb5/0x140
[  399.632859]  __alloc_pages_nodemask+0xad8/0xea0
[  399.637547]  ? zap_class+0x640/0x640
[  399.641257]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  399.646321]  ? find_held_lock+0x36/0x1c0
[  399.650384]  ? ____cache_alloc_node+0x1c7/0x1e0
[  399.655046]  ? lock_downgrade+0x900/0x900
[  399.659197]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.664763]  cache_grow_begin+0xa5/0x8c0
[  399.668853]  ? do_raw_spin_unlock+0xa7/0x330
[  399.673262]  fallback_alloc+0x204/0x2e0
[  399.677245]  ____cache_alloc_node+0x1c7/0x1e0
[  399.681742]  kmem_cache_alloc_node+0xe3/0x730
[  399.686251]  ? ipv6_get_ifaddr+0x42e/0x620
[  399.690496]  __alloc_skb+0x119/0x770
[  399.694208]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.699484]  ? netdev_alloc_frag+0x1f0/0x1f0
[  399.703920]  ? lock_downgrade+0x900/0x900
[  399.708071]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.713605]  ? refcount_sub_and_test_checked+0x203/0x310
[  399.719056]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  399.724505]  ? addrconf_rs_timer+0x690/0x690
[  399.728924]  ndisc_alloc_skb+0x144/0x340
[  399.732986]  ndisc_send_rs+0x331/0x6e0
[  399.736891]  addrconf_rs_timer+0x314/0x690
[  399.741136]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.745394]  call_timer_fn+0x272/0x920
[  399.749285]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.753532]  ? process_timeout+0x40/0x40
[  399.757643]  ? __run_timers+0x7da/0xc70
[  399.761631]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.766141]  ? _raw_spin_unlock_irq+0x27/0x80
[  399.770635]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.774865]  ? lockdep_hardirqs_on+0x296/0x5b0
[  399.779442]  ? trace_hardirqs_on+0xbd/0x310
[  399.783757]  ? kasan_check_read+0x11/0x20
[  399.787895]  ? __run_timers+0x7da/0xc70
[  399.791863]  ? trace_hardirqs_off_caller+0x310/0x310
[  399.796973]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.801209]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  399.805435]  __run_timers+0x7e5/0xc70
[  399.809253]  ? timer_fixup_init+0x70/0x70
[  399.813397]  ? kasan_check_read+0x11/0x20
[  399.817544]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  399.822812]  ? rcu_softirq_qs+0x20/0x20
[  399.826778]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.832305]  ? check_preemption_disabled+0x48/0x280
[  399.837344]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  399.842094]  ? retint_kernel+0x2d/0x2d
[  399.846001]  ? trace_hardirqs_on_caller+0xc0/0x310
[  399.850921]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  399.855673]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  399.861120]  ? zap_class+0x640/0x640
[  399.864855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.870411]  ? check_preemption_disabled+0x48/0x280
[  399.875457]  ? __lock_is_held+0xb5/0x140
[  399.879541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.885112]  ? check_preemption_disabled+0x48/0x280
[  399.890175]  run_timer_softirq+0x52/0xb0
[  399.894241]  ? rcu_read_lock_sched_held+0x14f/0x180
[  399.899258]  __do_softirq+0x308/0xb7e
[  399.903060]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  399.907566]  ? lock_downgrade+0x900/0x900
[  399.911735]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  399.916849]  ? pvclock_read_flags+0x160/0x160
[  399.921373]  ? lapic_next_event+0x5a/0x90
[  399.925564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.931104]  ? kvm_clock_read+0x18/0x30
[  399.935095]  ? kvm_sched_clock_read+0x9/0x20
[  399.939520]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  399.945070]  ? check_preemption_disabled+0x48/0x280
[  399.950094]  irq_exit+0x17f/0x1c0
[  399.953561]  smp_apic_timer_interrupt+0x1cb/0x760
[  399.958421]  ? smp_reschedule_interrupt+0x109/0x650
[  399.963451]  ? smp_call_function_single_interrupt+0x650/0x650
[  399.969334]  ? interrupt_entry+0xb5/0xc0
[  399.973395]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.978421]  ? trace_hardirqs_off_caller+0xbb/0x310
[  399.983436]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  399.988280]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.993292]  ? trace_hardirqs_on_caller+0x310/0x310
[  399.998304]  ? task_prio+0x50/0x50
[  400.001853]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.007385]  ? check_preemption_disabled+0x48/0x280
[  400.012421]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.017268]  apic_timer_interrupt+0xf/0x20
[  400.021495]  </IRQ>
[  400.023732] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  400.028683] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  400.047577] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  400.055283] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  400.062566] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  400.069840] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  400.077095] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  400.084354] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  400.092605]  skb_clone+0x1bb/0x500
[  400.096180]  ? skb_split+0x11e0/0x11e0
[  400.100082]  ? preempt_notifier_register+0x200/0x200
[  400.105176]  ? __switch_to_asm+0x34/0x70
[  400.109229]  ? __switch_to_asm+0x34/0x70
[  400.113282]  ? __switch_to_asm+0x40/0x70
[  400.117335]  ? __switch_to_asm+0x34/0x70
[  400.121396]  ? __switch_to_asm+0x40/0x70
[  400.125456]  ? __switch_to_asm+0x40/0x70
[  400.129541]  ? __switch_to_asm+0x34/0x70
[  400.133593]  ? __switch_to_asm+0x34/0x70
[  400.137660]  ? __switch_to_asm+0x40/0x70
[  400.141727]  ? __switch_to_asm+0x34/0x70
[  400.145785]  bpf_clone_redirect+0xb9/0x490
[  400.150020]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  400.155052]  ? __sched_text_start+0x8/0x8
[  400.159227]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  400.163988]  ? find_held_lock+0x36/0x1c0
[  400.168050]  ? lock_acquire+0x1ed/0x520
[  400.172019]  ? bpf_test_run+0x3ee/0x7a0
[  400.175989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.181534]  ? check_preemption_disabled+0x48/0x280
[  400.186553]  ? kasan_check_read+0x11/0x20
[  400.190703]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.195983]  ? rcu_softirq_qs+0x20/0x20
[  400.199957]  ? preempt_schedule+0x4d/0x60
[  400.204104]  ? ___preempt_schedule+0x16/0x18
[  400.208524]  ? bpf_test_run+0x271/0x7a0
[  400.212504]  ? netlink_diag_dump+0x2a0/0x2a0
[  400.216911]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.222448]  ? bpf_test_init.isra.10+0x70/0x100
[  400.227113]  ? bpf_prog_test_run_skb+0x762/0xd60
[  400.231881]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  400.236733]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  400.242294]  ? fput+0x130/0x1a0
[  400.245571]  ? __bpf_prog_get+0x9b/0x290
[  400.249644]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  400.254480]  ? bpf_prog_test_run+0x130/0x1a0
[  400.258884]  ? __x64_sys_bpf+0x3d8/0x520
[  400.262954]  ? bpf_prog_get+0x20/0x20
[  400.266799]  ? do_syscall_64+0x1b9/0x820
[  400.270886]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  400.276249]  ? syscall_return_slowpath+0x5e0/0x5e0
[  400.281172]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.286019]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.291028]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  400.296039]  ? prepare_exit_to_usermode+0x291/0x3b0
[  400.301053]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.305916]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  400.311291] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  400.311371] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  400.318221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  400.324780] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  400.334028] Call Trace:
[  400.344490] syz-executor4 cpuset=syz4 mems_allowed=0
[  400.347099]  <IRQ>
[  400.354348]  dump_stack+0x244/0x39d
[  400.357971]  ? dump_stack_print_info.cold.1+0x20/0x20
[  400.363172]  warn_alloc.cold.116+0xb7/0x1bd
[  400.367497]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  400.372343]  ? lock_downgrade+0x900/0x900
[  400.376501]  ? trace_hardirqs_off+0xb8/0x310
[  400.380920]  ? trace_hardirqs_off+0xb8/0x310
[  400.385336]  __alloc_pages_slowpath+0x2651/0x2de0
[  400.390208]  ? warn_alloc+0x120/0x120
[  400.394010]  ? print_usage_bug+0xc0/0xc0
[  400.398076]  ? warn_alloc+0x120/0x120
[  400.401899]  ? warn_alloc+0x120/0x120
[  400.405708]  ? print_usage_bug+0xc0/0xc0
[  400.409771]  ? kvm_clock_read+0x18/0x30
[  400.413746]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  400.418765]  ? print_usage_bug+0xc0/0xc0
[  400.422844]  ? __lock_acquire+0x62f/0x4c20
[  400.427090]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.432642]  ? should_fail+0x22d/0xd01
[  400.436528]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.441805]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.446915]  ? __lock_acquire+0x62f/0x4c20
[  400.451159]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  400.456260]  ? __lock_acquire+0x62f/0x4c20
[  400.460496]  ? should_fail+0x22d/0xd01
[  400.464381]  ? rcu_irq_exit+0x1a2/0x390
[  400.468361]  ? mark_held_locks+0x130/0x130
[  400.472598]  ? mark_held_locks+0x130/0x130
[  400.476841]  ? mark_held_locks+0xc7/0x130
[  400.480987]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  400.485998]  ? zap_class+0x640/0x640
[  400.489706]  ? print_usage_bug+0xc0/0xc0
[  400.493794]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.499341]  ? check_preemption_disabled+0x48/0x280
[  400.504360]  ? __lock_is_held+0xb5/0x140
[  400.508421]  __alloc_pages_nodemask+0xad8/0xea0
[  400.513085]  ? zap_class+0x640/0x640
[  400.516795]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  400.521818]  ? find_held_lock+0x36/0x1c0
[  400.525907]  ? ____cache_alloc_node+0x1c7/0x1e0
[  400.530589]  ? lock_downgrade+0x900/0x900
[  400.534753]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.540290]  cache_grow_begin+0xa5/0x8c0
[  400.544354]  ? do_raw_spin_unlock+0xa7/0x330
[  400.548765]  fallback_alloc+0x204/0x2e0
[  400.552739]  ____cache_alloc_node+0x1c7/0x1e0
[  400.557233]  kmem_cache_alloc_node+0xe3/0x730
[  400.561721]  ? ipv6_get_ifaddr+0x42e/0x620
[  400.566003]  __alloc_skb+0x119/0x770
[  400.569726]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  400.574998]  ? netdev_alloc_frag+0x1f0/0x1f0
[  400.579501]  ? lock_downgrade+0x900/0x900
[  400.583685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.589220]  ? refcount_sub_and_test_checked+0x203/0x310
[  400.594669]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  400.600127]  ? addrconf_rs_timer+0x690/0x690
[  400.604557]  ndisc_alloc_skb+0x144/0x340
[  400.608657]  ndisc_send_rs+0x331/0x6e0
[  400.612556]  addrconf_rs_timer+0x314/0x690
[  400.616792]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.621032]  call_timer_fn+0x272/0x920
[  400.624921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.629156]  ? process_timeout+0x40/0x40
[  400.633225]  ? mark_held_locks+0xc7/0x130
[  400.637372]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.641864]  ? _raw_spin_unlock_irq+0x27/0x80
[  400.646359]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.650590]  ? lockdep_hardirqs_on+0x296/0x5b0
[  400.655170]  ? trace_hardirqs_on+0xbd/0x310
[  400.659489]  ? kasan_check_read+0x11/0x20
[  400.663646]  ? __run_timers+0x7da/0xc70
[  400.667619]  ? trace_hardirqs_off_caller+0x310/0x310
[  400.672725]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.676963]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  400.681198]  __run_timers+0x7e5/0xc70
[  400.685012]  ? timer_fixup_init+0x70/0x70
[  400.689181]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  400.694198]  ? zap_class+0x640/0x640
[  400.697935]  ? print_usage_bug+0xc0/0xc0
[  400.702005]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  400.707205]  ? find_held_lock+0x36/0x1c0
[  400.711271]  ? zap_class+0x640/0x640
[  400.714990]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.720527]  ? check_preemption_disabled+0x48/0x280
[  400.725559]  ? __lock_is_held+0xb5/0x140
[  400.729667]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.735223]  ? check_preemption_disabled+0x48/0x280
[  400.740243]  run_timer_softirq+0x52/0xb0
[  400.744302]  ? rcu_read_lock_sched_held+0x14f/0x180
[  400.749318]  __do_softirq+0x308/0xb7e
[  400.753120]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  400.757693]  ? lock_downgrade+0x900/0x900
[  400.761899]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  400.767018]  ? pvclock_read_flags+0x160/0x160
[  400.771514]  ? lapic_next_event+0x5a/0x90
[  400.775659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.781198]  ? kvm_clock_read+0x18/0x30
[  400.785173]  ? kvm_sched_clock_read+0x9/0x20
[  400.789583]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  400.795117]  ? check_preemption_disabled+0x48/0x280
[  400.800150]  irq_exit+0x17f/0x1c0
[  400.803617]  smp_apic_timer_interrupt+0x1cb/0x760
[  400.808470]  ? smp_reschedule_interrupt+0x109/0x650
[  400.813481]  ? smp_call_function_single_interrupt+0x650/0x650
[  400.819362]  ? interrupt_entry+0xb5/0xc0
[  400.823420]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.828432]  ? trace_hardirqs_off_caller+0xbb/0x310
[  400.833445]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.838283]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.843293]  ? trace_hardirqs_on_caller+0x310/0x310
[  400.848303]  ? task_prio+0x50/0x50
[  400.851840]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  400.857393]  ? check_preemption_disabled+0x48/0x280
[  400.862429]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  400.867321]  apic_timer_interrupt+0xf/0x20
[  400.871580]  </IRQ>
[  400.873829] RIP: 0010:lock_acquire+0x268/0x520
[  400.878422] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  400.897332] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  400.905049] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  400.912337] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  400.919597] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  400.926870] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  400.934137] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  400.941421]  ? lruvec_lru_size+0x450/0x450
[  400.945664]  ? kasan_check_read+0x11/0x20
[  400.949923]  ? lock_release+0xa00/0xa00
[  400.953920]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  400.958876]  down_read_trylock+0xda/0x140
[  400.963054]  ? shrink_slab+0x207/0x8c0
[  400.966937]  ? downgrade_write+0x270/0x270
[  400.971179]  shrink_slab+0x207/0x8c0
[  400.974933]  ? shrink_active_list+0x1f00/0x1f00
[  400.979616]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  400.985238]  ? __lock_acquire+0x62f/0x4c20
[  400.989472]  ? percpu_ref_get_many+0x240/0x240
[  400.994067]  ? print_usage_bug+0xc0/0xc0
[  400.998137]  shrink_node+0x431/0x16b0
[  401.001936]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  401.007252]  ? shrink_node_memcg+0x18f0/0x18f0
[  401.011856]  ? kvm_clock_read+0x18/0x30
[  401.015831]  ? ktime_get+0x2c1/0x400
[  401.019554]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  401.024053]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  401.029592]  ? __cpuset_node_allowed+0x19b/0x660
[  401.034346]  ? mark_held_locks+0x130/0x130
[  401.038583]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  401.044295]  ? zap_class+0x640/0x640
[  401.048016]  do_try_to_free_pages+0x3e7/0x1290
[  401.052605]  ? zap_class+0x640/0x640
[  401.056336]  ? shrink_node+0x16b0/0x16b0
[  401.060402]  ? __lock_is_held+0xb5/0x140
[  401.064480]  try_to_free_pages+0x4d0/0xb90
[  401.068719]  ? do_try_to_free_pages+0x1290/0x1290
[  401.073572]  ? lock_acquire+0x1ed/0x520
[  401.077573]  ? set_page_refcounted+0x280/0x280
[  401.082673]  ? lock_release+0xa00/0xa00
[  401.086649]  ? _raw_spin_unlock_irq+0x60/0x80
[  401.091155]  ? psi_memstall_enter+0x240/0x2b0
[  401.095652]  ? psi_memstall_tick+0x230/0x230
[  401.100071]  __alloc_pages_slowpath+0xa48/0x2de0
[  401.104853]  ? warn_alloc+0x120/0x120
[  401.108652]  ? mark_held_locks+0x130/0x130
[  401.112896]  ? find_get_entry+0xaae/0x1120
[  401.117156]  ? filemap_map_pages+0x1a20/0x1a20
[  401.121747]  ? zap_class+0x640/0x640
[  401.125465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.131002]  ? check_preemption_disabled+0x48/0x280
[  401.136018]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.141554]  ? should_fail+0x22d/0xd01
[  401.145446]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.150568]  ? zap_class+0x640/0x640
[  401.154305]  ? __lock_is_held+0xb5/0x140
[  401.158373]  ? mark_held_locks+0x130/0x130
[  401.162612]  ? lock_release+0xa00/0xa00
[  401.166596]  ? perf_trace_sched_process_exec+0x860/0x860
[  401.172040]  ? xa_load+0x2ba/0x460
[  401.175572]  ? lock_downgrade+0x900/0x900
[  401.179743]  ? __might_sleep+0x95/0x190
[  401.183713]  __alloc_pages_nodemask+0xad8/0xea0
[  401.188385]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  401.193426]  ? __page_cache_alloc+0x191/0x5c0
[  401.197915]  ? xa_load+0x2e1/0x460
[  401.201451]  ? xa_clear_mark+0x40/0x40
[  401.205332]  ? zap_class+0x640/0x640
[  401.209058]  ? zap_class+0x640/0x640
[  401.212764]  ? zap_class+0x640/0x640
[  401.216489]  ? __do_page_cache_readahead+0x663/0x810
[  401.221593]  ? find_held_lock+0x36/0x1c0
[  401.225651]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  401.231208]  alloc_pages_current+0x173/0x350
[  401.235616]  __page_cache_alloc+0x38c/0x5c0
[  401.239931]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  401.244855]  ? kasan_check_read+0x11/0x20
[  401.248998]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.254272]  ? generic_perform_write+0x6a0/0x6a0
[  401.259023]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.264598]  ? check_preemption_disabled+0x48/0x280
[  401.269616]  filemap_fault+0x1595/0x25f0
[  401.273711]  ? __lock_page_or_retry+0xa00/0xa00
[  401.278377]  ? mark_held_locks+0x130/0x130
[  401.282631]  ? filemap_map_pages+0xd6b/0x1a20
[  401.287138]  ? lock_downgrade+0x900/0x900
[  401.291284]  ? check_preemption_disabled+0x48/0x280
[  401.296294]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  401.301233]  ? kasan_check_read+0x11/0x20
[  401.305447]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.310718]  ? rcu_softirq_qs+0x20/0x20
[  401.314723]  ? filemap_map_pages+0xd92/0x1a20
[  401.319225]  ? find_get_entries_tag+0x1400/0x1400
[  401.324063]  ? debug_object_destroy+0x2b0/0x2b0
[  401.328741]  ? lock_pi_update_atomic+0x150/0x150
[  401.333503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.339086]  ? lock_acquire+0x1ed/0x520
[  401.343053]  ? ext4_filemap_fault+0x7a/0xad
[  401.347400]  ? lock_release+0xa00/0xa00
[  401.351400]  ? perf_trace_sched_process_exec+0x860/0x860
[  401.356858]  ? print_usage_bug+0xc0/0xc0
[  401.360920]  ? print_usage_bug+0xc0/0xc0
[  401.365000]  ? down_read+0x8d/0x120
[  401.368618]  ? ext4_filemap_fault+0x7a/0xad
[  401.372936]  ? __down_interruptible+0x700/0x700
[  401.377605]  ext4_filemap_fault+0x82/0xad
[  401.381745]  __do_fault+0x100/0x6b0
[  401.385363]  ? find_held_lock+0x36/0x1c0
[  401.389425]  ? pmd_devmap_trans_unstable+0x220/0x220
[  401.394557]  ? mark_held_locks+0x130/0x130
[  401.398786]  ? mark_held_locks+0x130/0x130
[  401.403018]  ? kasan_check_read+0x11/0x20
[  401.407162]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.412698]  __handle_mm_fault+0x3ea0/0x5be0
[  401.417097]  ? perf_trace_lock+0x7a0/0x7a0
[  401.421330]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  401.426220]  ? __switch_to_asm+0x34/0x70
[  401.430276]  ? __switch_to_asm+0x34/0x70
[  401.434339]  ? zap_class+0x640/0x640
[  401.438046]  ? zap_class+0x640/0x640
[  401.441751]  ? __x64_sys_futex+0x53e/0x6a0
[  401.445983]  ? find_held_lock+0x36/0x1c0
[  401.450043]  ? handle_mm_fault+0x42a/0xc70
[  401.454288]  ? lock_downgrade+0x900/0x900
[  401.458433]  ? check_preemption_disabled+0x48/0x280
[  401.463443]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  401.468376]  ? kasan_check_read+0x11/0x20
[  401.472530]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.477821]  ? rcu_softirq_qs+0x20/0x20
[  401.481794]  ? trace_hardirqs_off_caller+0x310/0x310
[  401.486912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  401.492443]  ? sync_mm_rss+0x9a/0x1c0
[  401.496261]  handle_mm_fault+0x54f/0xc70
[  401.500320]  ? __handle_mm_fault+0x5be0/0x5be0
[  401.504901]  ? find_vma+0x34/0x190
[  401.508463]  __do_page_fault+0x5e8/0xe60
[  401.512520]  ? trace_hardirqs_off+0xb8/0x310
[  401.516936]  do_page_fault+0xf2/0x7e0
[  401.520737]  ? vmalloc_sync_all+0x30/0x30
[  401.524906]  ? error_entry+0x70/0xd0
[  401.528613]  ? trace_hardirqs_off_caller+0xbb/0x310
[  401.533620]  ? trace_hardirqs_on_caller+0xc0/0x310
[  401.538548]  ? syscall_return_slowpath+0x5e0/0x5e0
[  401.543470]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.548308]  ? trace_hardirqs_on_caller+0x310/0x310
[  401.553323]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  401.558773]  ? prepare_exit_to_usermode+0x291/0x3b0
[  401.563782]  ? page_fault+0x8/0x30
[  401.567318]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  401.572164]  ? page_fault+0x8/0x30
[  401.575700]  page_fault+0x1e/0x30
[  401.579164] RIP: 0033:0x45ddf3
[  401.582380] Code: Bad RIP value.
[  401.585766] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  401.591121] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  401.598407] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  401.605675] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  401.612949] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  401.620226] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  401.627513] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  401.627518] warn_alloc_show_mem: 1 callbacks suppressed
[  401.627524] Mem-Info:
[  401.634791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  401.640157] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  401.640157]  active_file:17 inactive_file:17 isolated_file:0
[  401.640157]  unevictable:0 dirty:4 writeback:0 unstable:0
[  401.640157]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  401.640157]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  401.640157]  free:13550 free_pcp:124 free_cma:0
[  401.642526] Call Trace:
[  401.651935] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  401.684950]  <IRQ>
[  401.687525] 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
[  401.715306]  dump_stack+0x244/0x39d
[  401.717435] lowmem_reserve[]: 0 2818 6321 6321
[  401.743540]  ? dump_stack_print_info.cold.1+0x20/0x20
[  401.747146] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  401.751726]  warn_alloc.cold.116+0xb7/0x1bd
[  401.756881] lowmem_reserve[]: 0 0 3503 3503
[  401.784194]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  401.788485] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  401.792792]  ? lock_downgrade+0x900/0x900
[  401.797605] lowmem_reserve[]: 0 0 0 0
[  401.826482]  ? trace_hardirqs_off+0xb8/0x310
[  401.830613] 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
[  401.834400]  ? trace_hardirqs_off+0xb8/0x310
[  401.838787] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  401.852303]  __alloc_pages_slowpath+0x2651/0x2de0
[  401.856699] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  401.871450]  ? warn_alloc+0x120/0x120
[  401.876254] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  401.890990]  ? print_usage_bug+0xc0/0xc0
[  401.894782] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  401.903597]  ? warn_alloc+0x120/0x120
[  401.907665] 1360 total pagecache pages
[  401.916228]  ? warn_alloc+0x120/0x120
[  401.920008] 0 pages in swap cache
[  401.923887]  ? print_usage_bug+0xc0/0xc0
[  401.927681] Swap cache stats: add 0, delete 0, find 0/0
[  401.931223]  ? kvm_clock_read+0x18/0x30
[  401.935259] Free swap  = 0kB
[  401.940614]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  401.944559] Total swap = 0kB
[  401.947563]  ? print_usage_bug+0xc0/0xc0
[  401.952550] 1965979 pages RAM
[  401.955555]  ? __lock_acquire+0x62f/0x4c20
[  401.959611] 0 pages HighMem/MovableOnly
[  401.962742]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  401.966966] 342854 pages reserved
[  401.970936]  ? should_fail+0x22d/0xd01
[  401.976453] 0 pages cma reserved
[  401.979893]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  401.983836] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  401.987114]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  401.992455] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  401.998841]  ? __lock_acquire+0x62f/0x4c20
[  402.003937] syz-fuzzer cpuset=/ mems_allowed=0
[  402.014157]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.028126]  ? __lock_acquire+0x62f/0x4c20
[  402.032369]  ? should_fail+0x22d/0xd01
[  402.036247]  ? rcu_irq_exit+0x1a2/0x390
[  402.040231]  ? mark_held_locks+0x130/0x130
[  402.044517]  ? mark_held_locks+0x130/0x130
[  402.048770]  ? mark_held_locks+0xc7/0x130
[  402.052920]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  402.057933]  ? zap_class+0x640/0x640
[  402.061647]  ? print_usage_bug+0xc0/0xc0
[  402.065761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.071298]  ? check_preemption_disabled+0x48/0x280
[  402.076322]  ? __lock_is_held+0xb5/0x140
[  402.080389]  __alloc_pages_nodemask+0xad8/0xea0
[  402.085060]  ? zap_class+0x640/0x640
[  402.088777]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  402.093811]  ? find_held_lock+0x36/0x1c0
[  402.097881]  ? ____cache_alloc_node+0x1c7/0x1e0
[  402.102546]  ? lock_downgrade+0x900/0x900
[  402.106693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.112246]  cache_grow_begin+0xa5/0x8c0
[  402.116345]  ? do_raw_spin_unlock+0xa7/0x330
[  402.120756]  fallback_alloc+0x204/0x2e0
[  402.124734]  ____cache_alloc_node+0x1c7/0x1e0
[  402.129227]  kmem_cache_alloc_node+0xe3/0x730
[  402.133751]  ? ipv6_get_ifaddr+0x42e/0x620
[  402.138012]  __alloc_skb+0x119/0x770
[  402.141717]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.146988]  ? netdev_alloc_frag+0x1f0/0x1f0
[  402.151414]  ? lock_downgrade+0x900/0x900
[  402.155561]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.161092]  ? refcount_sub_and_test_checked+0x203/0x310
[  402.166537]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  402.171982]  ? addrconf_rs_timer+0x690/0x690
[  402.176392]  ndisc_alloc_skb+0x144/0x340
[  402.180472]  ndisc_send_rs+0x331/0x6e0
[  402.184367]  addrconf_rs_timer+0x314/0x690
[  402.188615]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.192855]  call_timer_fn+0x272/0x920
[  402.196736]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.200973]  ? process_timeout+0x40/0x40
[  402.205030]  ? __run_timers+0x7da/0xc70
[  402.208997]  ? _raw_spin_unlock_irq+0x27/0x80
[  402.213486]  ? _raw_spin_unlock_irq+0x27/0x80
[  402.217992]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.222247]  ? lockdep_hardirqs_on+0x296/0x5b0
[  402.226866]  ? trace_hardirqs_on+0xbd/0x310
[  402.231182]  ? kasan_check_read+0x11/0x20
[  402.235322]  ? __run_timers+0x7da/0xc70
[  402.239290]  ? trace_hardirqs_off_caller+0x310/0x310
[  402.244392]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.248634]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  402.252867]  __run_timers+0x7e5/0xc70
[  402.256685]  ? timer_fixup_init+0x70/0x70
[  402.260832]  ? kasan_check_read+0x11/0x20
[  402.264974]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.270242]  ? rcu_softirq_qs+0x20/0x20
[  402.274214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.279751]  ? check_preemption_disabled+0x48/0x280
[  402.284775]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  402.289528]  ? retint_kernel+0x2d/0x2d
[  402.293418]  ? trace_hardirqs_on_caller+0xc0/0x310
[  402.298345]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  402.303101]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  402.308558]  ? zap_class+0x640/0x640
[  402.312269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.317800]  ? check_preemption_disabled+0x48/0x280
[  402.322835]  ? __lock_is_held+0xb5/0x140
[  402.326892]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.332432]  ? check_preemption_disabled+0x48/0x280
[  402.337447]  run_timer_softirq+0x52/0xb0
[  402.341504]  ? rcu_read_lock_sched_held+0x14f/0x180
[  402.346529]  __do_softirq+0x308/0xb7e
[  402.350338]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  402.354871]  ? lock_downgrade+0x900/0x900
[  402.359060]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  402.364188]  ? pvclock_read_flags+0x160/0x160
[  402.368687]  ? lapic_next_event+0x5a/0x90
[  402.372855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.378416]  ? kvm_clock_read+0x18/0x30
[  402.382389]  ? kvm_sched_clock_read+0x9/0x20
[  402.386835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.392384]  ? check_preemption_disabled+0x48/0x280
[  402.397431]  irq_exit+0x17f/0x1c0
[  402.400903]  smp_apic_timer_interrupt+0x1cb/0x760
[  402.405776]  ? smp_reschedule_interrupt+0x109/0x650
[  402.410791]  ? smp_call_function_single_interrupt+0x650/0x650
[  402.416698]  ? interrupt_entry+0xb5/0xc0
[  402.420764]  ? trace_hardirqs_off_caller+0xbb/0x310
[  402.425780]  ? trace_hardirqs_off_caller+0xbb/0x310
[  402.430794]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.435632]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.440682]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.445697]  ? task_prio+0x50/0x50
[  402.449285]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.454819]  ? check_preemption_disabled+0x48/0x280
[  402.459846]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.464697]  apic_timer_interrupt+0xf/0x20
[  402.468938]  </IRQ>
[  402.471173] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  402.476100] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  402.495004] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  402.502707] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  402.509981] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  402.517273] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  402.524553] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  402.531817] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  402.539114]  skb_clone+0x1bb/0x500
[  402.542655]  ? skb_split+0x11e0/0x11e0
[  402.546569]  ? preempt_notifier_register+0x200/0x200
[  402.551678]  ? __switch_to_asm+0x34/0x70
[  402.555730]  ? __switch_to_asm+0x34/0x70
[  402.559783]  ? __switch_to_asm+0x40/0x70
[  402.563836]  ? __switch_to_asm+0x34/0x70
[  402.567909]  ? __switch_to_asm+0x40/0x70
[  402.571977]  ? __switch_to_asm+0x40/0x70
[  402.576027]  ? __switch_to_asm+0x34/0x70
[  402.580081]  ? __switch_to_asm+0x34/0x70
[  402.584139]  ? __switch_to_asm+0x40/0x70
[  402.588211]  ? __switch_to_asm+0x34/0x70
[  402.592275]  bpf_clone_redirect+0xb9/0x490
[  402.596514]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  402.601542]  ? __sched_text_start+0x8/0x8
[  402.605687]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  402.610479]  ? find_held_lock+0x36/0x1c0
[  402.614558]  ? lock_acquire+0x1ed/0x520
[  402.618526]  ? bpf_test_run+0x3ee/0x7a0
[  402.622531]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.628080]  ? check_preemption_disabled+0x48/0x280
[  402.633098]  ? kasan_check_read+0x11/0x20
[  402.637242]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.642542]  ? rcu_softirq_qs+0x20/0x20
[  402.646510]  ? preempt_schedule+0x4d/0x60
[  402.650694]  ? ___preempt_schedule+0x16/0x18
[  402.655106]  ? bpf_test_run+0x271/0x7a0
[  402.659092]  ? netlink_diag_dump+0x2a0/0x2a0
[  402.663528]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.669095]  ? bpf_test_init.isra.10+0x70/0x100
[  402.673770]  ? bpf_prog_test_run_skb+0x762/0xd60
[  402.678530]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  402.683375]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  402.688920]  ? fput+0x130/0x1a0
[  402.692224]  ? __bpf_prog_get+0x9b/0x290
[  402.696305]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  402.701169]  ? bpf_prog_test_run+0x130/0x1a0
[  402.705583]  ? __x64_sys_bpf+0x3d8/0x520
[  402.709646]  ? bpf_prog_get+0x20/0x20
[  402.713468]  ? do_syscall_64+0x1b9/0x820
[  402.717531]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  402.722896]  ? syscall_return_slowpath+0x5e0/0x5e0
[  402.727827]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.732671]  ? trace_hardirqs_on_caller+0x310/0x310
[  402.737688]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  402.742708]  ? prepare_exit_to_usermode+0x291/0x3b0
[  402.747739]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  402.752588]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  402.757969] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  402.758050] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  402.764918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  402.764923] Call Trace:
[  402.764929]  <IRQ>
[  402.764945]  dump_stack+0x244/0x39d
[  402.764964]  ? dump_stack_print_info.cold.1+0x20/0x20
[  402.771523] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  402.780791]  warn_alloc.cold.116+0xb7/0x1bd
[  402.783343] syz-executor4 cpuset=syz4 mems_allowed=0
[  402.785487]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  402.818987]  ? lock_downgrade+0x900/0x900
[  402.823154]  ? trace_hardirqs_off+0xb8/0x310
[  402.827572]  ? trace_hardirqs_off+0xb8/0x310
[  402.831997]  __alloc_pages_slowpath+0x2651/0x2de0
[  402.836872]  ? warn_alloc+0x120/0x120
[  402.840680]  ? print_usage_bug+0xc0/0xc0
[  402.844757]  ? warn_alloc+0x120/0x120
[  402.848562]  ? warn_alloc+0x120/0x120
[  402.852376]  ? print_usage_bug+0xc0/0xc0
[  402.856433]  ? kvm_clock_read+0x18/0x30
[  402.860406]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  402.865441]  ? print_usage_bug+0xc0/0xc0
[  402.869536]  ? __lock_acquire+0x62f/0x4c20
[  402.873780]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  402.879324]  ? should_fail+0x22d/0xd01
[  402.883220]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  402.888499]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.893615]  ? __lock_acquire+0x62f/0x4c20
[  402.897892]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  402.902995]  ? __lock_acquire+0x62f/0x4c20
[  402.907223]  ? should_fail+0x22d/0xd01
[  402.911104]  ? rcu_irq_exit+0x1a2/0x390
[  402.915111]  ? mark_held_locks+0x130/0x130
[  402.919360]  ? mark_held_locks+0x130/0x130
[  402.923620]  ? mark_held_locks+0xc7/0x130
[  402.927772]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  402.932804]  ? zap_class+0x640/0x640
[  402.936519]  ? print_usage_bug+0xc0/0xc0
[  402.940583]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.946120]  ? check_preemption_disabled+0x48/0x280
[  402.951312]  ? __lock_is_held+0xb5/0x140
[  402.955378]  __alloc_pages_nodemask+0xad8/0xea0
[  402.960048]  ? zap_class+0x640/0x640
[  402.963766]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  402.968792]  ? find_held_lock+0x36/0x1c0
[  402.972867]  ? ____cache_alloc_node+0x1c7/0x1e0
[  402.977617]  ? lock_downgrade+0x900/0x900
[  402.981791]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  402.987344]  cache_grow_begin+0xa5/0x8c0
[  402.991416]  ? do_raw_spin_unlock+0xa7/0x330
[  402.995860]  fallback_alloc+0x204/0x2e0
[  402.999843]  ____cache_alloc_node+0x1c7/0x1e0
[  403.004352]  kmem_cache_alloc_node+0xe3/0x730
[  403.008850]  ? ipv6_get_ifaddr+0x42e/0x620
[  403.013094]  __alloc_skb+0x119/0x770
[  403.016808]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.022089]  ? netdev_alloc_frag+0x1f0/0x1f0
[  403.026495]  ? lock_downgrade+0x900/0x900
[  403.030651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.036191]  ? refcount_sub_and_test_checked+0x203/0x310
[  403.041640]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  403.047084]  ? addrconf_rs_timer+0x690/0x690
[  403.051498]  ndisc_alloc_skb+0x144/0x340
[  403.055554]  ndisc_send_rs+0x331/0x6e0
[  403.059438]  addrconf_rs_timer+0x314/0x690
[  403.063671]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.067913]  call_timer_fn+0x272/0x920
[  403.071797]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.076025]  ? process_timeout+0x40/0x40
[  403.080607]  ? mark_held_locks+0xc7/0x130
[  403.084751]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.089244]  ? _raw_spin_unlock_irq+0x27/0x80
[  403.093770]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.098005]  ? lockdep_hardirqs_on+0x296/0x5b0
[  403.102581]  ? trace_hardirqs_on+0xbd/0x310
[  403.106958]  ? kasan_check_read+0x11/0x20
[  403.111096]  ? __run_timers+0x7da/0xc70
[  403.115076]  ? trace_hardirqs_off_caller+0x310/0x310
[  403.120180]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.124416]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  403.128671]  __run_timers+0x7e5/0xc70
[  403.132476]  ? timer_fixup_init+0x70/0x70
[  403.136617]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  403.141645]  ? zap_class+0x640/0x640
[  403.145367]  ? print_usage_bug+0xc0/0xc0
[  403.149423]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  403.154628]  ? find_held_lock+0x36/0x1c0
[  403.158693]  ? zap_class+0x640/0x640
[  403.162422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.167956]  ? check_preemption_disabled+0x48/0x280
[  403.172975]  ? __lock_is_held+0xb5/0x140
[  403.177046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.182585]  ? check_preemption_disabled+0x48/0x280
[  403.187616]  run_timer_softirq+0x52/0xb0
[  403.191673]  ? rcu_read_lock_sched_held+0x14f/0x180
[  403.196689]  __do_softirq+0x308/0xb7e
[  403.200489]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  403.204993]  ? lock_downgrade+0x900/0x900
[  403.209178]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  403.214283]  ? pvclock_read_flags+0x160/0x160
[  403.218775]  ? lapic_next_event+0x5a/0x90
[  403.222931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.228467]  ? kvm_clock_read+0x18/0x30
[  403.232442]  ? kvm_sched_clock_read+0x9/0x20
[  403.236888]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.242441]  ? check_preemption_disabled+0x48/0x280
[  403.247478]  irq_exit+0x17f/0x1c0
[  403.250951]  smp_apic_timer_interrupt+0x1cb/0x760
[  403.255790]  ? smp_reschedule_interrupt+0x109/0x650
[  403.260831]  ? smp_call_function_single_interrupt+0x650/0x650
[  403.266711]  ? interrupt_entry+0xb5/0xc0
[  403.270785]  ? trace_hardirqs_off_caller+0xbb/0x310
[  403.275796]  ? trace_hardirqs_off_caller+0xbb/0x310
[  403.280809]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.285646]  ? trace_hardirqs_on_caller+0x310/0x310
[  403.290654]  ? trace_hardirqs_on_caller+0x310/0x310
[  403.295667]  ? task_prio+0x50/0x50
[  403.299204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.304769]  ? check_preemption_disabled+0x48/0x280
[  403.309822]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.314664]  apic_timer_interrupt+0xf/0x20
[  403.318885]  </IRQ>
[  403.321120] RIP: 0010:lock_acquire+0x268/0x520
[  403.325705] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  403.344594] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  403.352296] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  403.359555] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  403.366815] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  403.374092] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  403.381355] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  403.388639]  ? lruvec_lru_size+0x450/0x450
[  403.392867]  ? kasan_check_read+0x11/0x20
[  403.397012]  ? lock_release+0xa00/0xa00
[  403.400983]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  403.405921]  down_read_trylock+0xda/0x140
[  403.410064]  ? shrink_slab+0x207/0x8c0
[  403.413963]  ? downgrade_write+0x270/0x270
[  403.418199]  shrink_slab+0x207/0x8c0
[  403.421924]  ? shrink_active_list+0x1f00/0x1f00
[  403.426626]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  403.432278]  ? __lock_acquire+0x62f/0x4c20
[  403.436514]  ? percpu_ref_get_many+0x240/0x240
[  403.441121]  ? print_usage_bug+0xc0/0xc0
[  403.445227]  shrink_node+0x431/0x16b0
[  403.449026]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  403.454327]  ? shrink_node_memcg+0x18f0/0x18f0
[  403.458915]  ? kvm_clock_read+0x18/0x30
[  403.462886]  ? ktime_get+0x2c1/0x400
[  403.466604]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  403.471101]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  403.476658]  ? __cpuset_node_allowed+0x19b/0x660
[  403.481412]  ? mark_held_locks+0x130/0x130
[  403.485646]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  403.491352]  ? zap_class+0x640/0x640
[  403.495070]  do_try_to_free_pages+0x3e7/0x1290
[  403.499645]  ? zap_class+0x640/0x640
[  403.503385]  ? shrink_node+0x16b0/0x16b0
[  403.507460]  ? __lock_is_held+0xb5/0x140
[  403.511545]  try_to_free_pages+0x4d0/0xb90
[  403.515795]  ? do_try_to_free_pages+0x1290/0x1290
[  403.520665]  ? lock_acquire+0x1ed/0x520
[  403.524638]  ? set_page_refcounted+0x280/0x280
[  403.529225]  ? lock_release+0xa00/0xa00
[  403.533196]  ? _raw_spin_unlock_irq+0x60/0x80
[  403.537689]  ? psi_memstall_enter+0x240/0x2b0
[  403.542189]  ? psi_memstall_tick+0x230/0x230
[  403.546620]  __alloc_pages_slowpath+0xa48/0x2de0
[  403.551398]  ? warn_alloc+0x120/0x120
[  403.555197]  ? mark_held_locks+0x130/0x130
[  403.559436]  ? find_get_entry+0xaae/0x1120
[  403.563707]  ? filemap_map_pages+0x1a20/0x1a20
[  403.568306]  ? zap_class+0x640/0x640
[  403.572023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.577555]  ? check_preemption_disabled+0x48/0x280
[  403.582567]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.588100]  ? should_fail+0x22d/0xd01
[  403.592007]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  403.597108]  ? zap_class+0x640/0x640
[  403.600848]  ? __lock_is_held+0xb5/0x140
[  403.604930]  ? mark_held_locks+0x130/0x130
[  403.609180]  ? lock_release+0xa00/0xa00
[  403.613158]  ? perf_trace_sched_process_exec+0x860/0x860
[  403.618606]  ? xa_load+0x2ba/0x460
[  403.622179]  ? lock_downgrade+0x900/0x900
[  403.626329]  ? __might_sleep+0x95/0x190
[  403.630314]  __alloc_pages_nodemask+0xad8/0xea0
[  403.635007]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  403.640021]  ? __page_cache_alloc+0x191/0x5c0
[  403.644509]  ? xa_load+0x2e1/0x460
[  403.648050]  ? xa_clear_mark+0x40/0x40
[  403.651940]  ? zap_class+0x640/0x640
[  403.655655]  ? zap_class+0x640/0x640
[  403.659362]  ? zap_class+0x640/0x640
[  403.663074]  ? __do_page_cache_readahead+0x663/0x810
[  403.668212]  ? find_held_lock+0x36/0x1c0
[  403.672273]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  403.677833]  alloc_pages_current+0x173/0x350
[  403.682249]  __page_cache_alloc+0x38c/0x5c0
[  403.686579]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.691524]  ? kasan_check_read+0x11/0x20
[  403.695689]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.700981]  ? generic_perform_write+0x6a0/0x6a0
[  403.705735]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.711286]  ? check_preemption_disabled+0x48/0x280
[  403.716311]  filemap_fault+0x1595/0x25f0
[  403.720417]  ? __lock_page_or_retry+0xa00/0xa00
[  403.725088]  ? mark_held_locks+0x130/0x130
[  403.729324]  ? filemap_map_pages+0xd6b/0x1a20
[  403.733817]  ? lock_downgrade+0x900/0x900
[  403.737964]  ? check_preemption_disabled+0x48/0x280
[  403.742975]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.747937]  ? kasan_check_read+0x11/0x20
[  403.752082]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.757356]  ? rcu_softirq_qs+0x20/0x20
[  403.761336]  ? filemap_map_pages+0xd92/0x1a20
[  403.765840]  ? find_get_entries_tag+0x1400/0x1400
[  403.770697]  ? debug_object_destroy+0x2b0/0x2b0
[  403.775400]  ? lock_pi_update_atomic+0x150/0x150
[  403.780179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.785722]  ? lock_acquire+0x1ed/0x520
[  403.789696]  ? ext4_filemap_fault+0x7a/0xad
[  403.794025]  ? lock_release+0xa00/0xa00
[  403.797996]  ? perf_trace_sched_process_exec+0x860/0x860
[  403.803449]  ? print_usage_bug+0xc0/0xc0
[  403.807513]  ? print_usage_bug+0xc0/0xc0
[  403.811585]  ? down_read+0x8d/0x120
[  403.815210]  ? ext4_filemap_fault+0x7a/0xad
[  403.819531]  ? __down_interruptible+0x700/0x700
[  403.824209]  ext4_filemap_fault+0x82/0xad
[  403.828353]  __do_fault+0x100/0x6b0
[  403.831969]  ? find_held_lock+0x36/0x1c0
[  403.836026]  ? pmd_devmap_trans_unstable+0x220/0x220
[  403.841126]  ? mark_held_locks+0x130/0x130
[  403.845364]  ? mark_held_locks+0x130/0x130
[  403.849623]  ? kasan_check_read+0x11/0x20
[  403.853814]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  403.859369]  __handle_mm_fault+0x3ea0/0x5be0
[  403.863785]  ? perf_trace_lock+0x7a0/0x7a0
[  403.868024]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  403.872883]  ? __switch_to_asm+0x34/0x70
[  403.876957]  ? __switch_to_asm+0x34/0x70
[  403.881023]  ? zap_class+0x640/0x640
[  403.884749]  ? zap_class+0x640/0x640
[  403.888460]  ? __x64_sys_futex+0x53e/0x6a0
[  403.892696]  ? find_held_lock+0x36/0x1c0
[  403.896761]  ? handle_mm_fault+0x42a/0xc70
[  403.900994]  ? lock_downgrade+0x900/0x900
[  403.905144]  ? check_preemption_disabled+0x48/0x280
[  403.910178]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  403.915128]  ? kasan_check_read+0x11/0x20
[  403.919282]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  403.924644]  ? rcu_softirq_qs+0x20/0x20
[  403.928616]  ? trace_hardirqs_off_caller+0x310/0x310
[  403.933754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  403.939290]  ? sync_mm_rss+0x9a/0x1c0
[  403.943094]  handle_mm_fault+0x54f/0xc70
[  403.947163]  ? __handle_mm_fault+0x5be0/0x5be0
[  403.951795]  ? find_vma+0x34/0x190
[  403.955357]  __do_page_fault+0x5e8/0xe60
[  403.959416]  ? trace_hardirqs_off+0xb8/0x310
[  403.963834]  do_page_fault+0xf2/0x7e0
[  403.967676]  ? vmalloc_sync_all+0x30/0x30
[  403.971824]  ? error_entry+0x70/0xd0
[  403.975537]  ? trace_hardirqs_off_caller+0xbb/0x310
[  403.980550]  ? trace_hardirqs_on_caller+0xc0/0x310
[  403.985510]  ? syscall_return_slowpath+0x5e0/0x5e0
[  403.990438]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  403.995330]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.000339]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  404.005786]  ? prepare_exit_to_usermode+0x291/0x3b0
[  404.010794]  ? page_fault+0x8/0x30
[  404.014328]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.019199]  ? page_fault+0x8/0x30
[  404.022772]  page_fault+0x1e/0x30
[  404.026230] RIP: 0033:0x45ddf3
[  404.029446] Code: Bad RIP value.
[  404.032829] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  404.038179] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  404.045453] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  404.052709] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  404.059965] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  404.067239] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  404.074524] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  404.074544] warn_alloc_show_mem: 1 callbacks suppressed
[  404.074550] Mem-Info:
[  404.081872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  404.087281] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  404.087281]  active_file:17 inactive_file:17 isolated_file:0
[  404.087281]  unevictable:0 dirty:4 writeback:0 unstable:0
[  404.087281]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  404.087281]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  404.087281]  free:13550 free_pcp:124 free_cma:0
[  404.089653] Call Trace:
[  404.099072] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  404.132087]  <IRQ>
[  404.134651] 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
[  404.162396]  dump_stack+0x244/0x39d
[  404.164516] lowmem_reserve[]: 0 2818 6321 6321
[  404.190633]  ? dump_stack_print_info.cold.1+0x20/0x20
[  404.194232] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  404.198818]  warn_alloc.cold.116+0xb7/0x1bd
[  404.203971] lowmem_reserve[]: 0 0 3503 3503
[  404.231368]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  404.235659] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  404.239967]  ? lock_downgrade+0x900/0x900
[  404.244796] lowmem_reserve[]: 0 0 0 0
[  404.273671]  ? trace_hardirqs_off+0xb8/0x310
[  404.277787] 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
[  404.281603]  ? trace_hardirqs_off+0xb8/0x310
[  404.285981] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  404.299494]  __alloc_pages_slowpath+0x2651/0x2de0
[  404.303913] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  404.318676]  ? warn_alloc+0x120/0x120
[  404.323480] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  404.338198]  ? print_usage_bug+0xc0/0xc0
[  404.341972] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  404.350800]  ? warn_alloc+0x120/0x120
[  404.354848] 1360 total pagecache pages
[  404.363419]  ? warn_alloc+0x120/0x120
[  404.367203] 0 pages in swap cache
[  404.371081]  ? print_usage_bug+0xc0/0xc0
[  404.374869] Swap cache stats: add 0, delete 0, find 0/0
[  404.378308]  ? kvm_clock_read+0x18/0x30
[  404.382335] Free swap  = 0kB
[  404.387682]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  404.391629] Total swap = 0kB
[  404.394668]  ? print_usage_bug+0xc0/0xc0
[  404.399651] 1965979 pages RAM
[  404.402651]  ? __lock_acquire+0x62f/0x4c20
[  404.406679] 0 pages HighMem/MovableOnly
[  404.409771]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.413972] 342854 pages reserved
[  404.417951]  ? should_fail+0x22d/0xd01
[  404.423457] 0 pages cma reserved
[  404.426909]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.430933] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  404.434156]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  404.439475] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  404.445901]  ? __lock_acquire+0x62f/0x4c20
[  404.450978] syz-fuzzer cpuset=/ mems_allowed=0
[  404.461189]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  404.475047]  ? __lock_acquire+0x62f/0x4c20
[  404.479323]  ? should_fail+0x22d/0xd01
[  404.483211]  ? rcu_irq_exit+0x1a2/0x390
[  404.487204]  ? mark_held_locks+0x130/0x130
[  404.491444]  ? mark_held_locks+0x130/0x130
[  404.495676]  ? mark_held_locks+0xc7/0x130
[  404.499815]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  404.504822]  ? zap_class+0x640/0x640
[  404.508527]  ? print_usage_bug+0xc0/0xc0
[  404.512610]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.518161]  ? check_preemption_disabled+0x48/0x280
[  404.523180]  ? __lock_is_held+0xb5/0x140
[  404.527255]  __alloc_pages_nodemask+0xad8/0xea0
[  404.531920]  ? zap_class+0x640/0x640
[  404.535631]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  404.540680]  ? find_held_lock+0x36/0x1c0
[  404.544777]  ? ____cache_alloc_node+0x1c7/0x1e0
[  404.549444]  ? lock_downgrade+0x900/0x900
[  404.553590]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.559123]  cache_grow_begin+0xa5/0x8c0
[  404.563186]  ? do_raw_spin_unlock+0xa7/0x330
[  404.567596]  fallback_alloc+0x204/0x2e0
[  404.571603]  ____cache_alloc_node+0x1c7/0x1e0
[  404.576096]  kmem_cache_alloc_node+0xe3/0x730
[  404.580598]  ? ipv6_get_ifaddr+0x42e/0x620
[  404.584840]  __alloc_skb+0x119/0x770
[  404.588546]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.593824]  ? netdev_alloc_frag+0x1f0/0x1f0
[  404.598225]  ? lock_downgrade+0x900/0x900
[  404.602411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.607943]  ? refcount_sub_and_test_checked+0x203/0x310
[  404.613390]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  404.618843]  ? addrconf_rs_timer+0x690/0x690
[  404.623258]  ndisc_alloc_skb+0x144/0x340
[  404.627319]  ndisc_send_rs+0x331/0x6e0
[  404.631204]  addrconf_rs_timer+0x314/0x690
[  404.635456]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.639695]  call_timer_fn+0x272/0x920
[  404.643574]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.647815]  ? process_timeout+0x40/0x40
[  404.651875]  ? __run_timers+0x7da/0xc70
[  404.655846]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.660332]  ? _raw_spin_unlock_irq+0x27/0x80
[  404.664845]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.669124]  ? lockdep_hardirqs_on+0x296/0x5b0
[  404.673727]  ? trace_hardirqs_on+0xbd/0x310
[  404.678045]  ? kasan_check_read+0x11/0x20
[  404.682192]  ? __run_timers+0x7da/0xc70
[  404.686184]  ? trace_hardirqs_off_caller+0x310/0x310
[  404.691295]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.695534]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  404.699768]  __run_timers+0x7e5/0xc70
[  404.703591]  ? timer_fixup_init+0x70/0x70
[  404.707735]  ? kasan_check_read+0x11/0x20
[  404.711879]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  404.717156]  ? rcu_softirq_qs+0x20/0x20
[  404.721127]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.726714]  ? check_preemption_disabled+0x48/0x280
[  404.731736]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  404.736490]  ? retint_kernel+0x2d/0x2d
[  404.740373]  ? trace_hardirqs_on_caller+0xc0/0x310
[  404.745309]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  404.750064]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  404.755517]  ? zap_class+0x640/0x640
[  404.759237]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.764774]  ? check_preemption_disabled+0x48/0x280
[  404.769796]  ? __lock_is_held+0xb5/0x140
[  404.773868]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.779400]  ? check_preemption_disabled+0x48/0x280
[  404.784428]  run_timer_softirq+0x52/0xb0
[  404.788489]  ? rcu_read_lock_sched_held+0x14f/0x180
[  404.793502]  __do_softirq+0x308/0xb7e
[  404.797328]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  404.801838]  ? lock_downgrade+0x900/0x900
[  404.806020]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  404.811123]  ? pvclock_read_flags+0x160/0x160
[  404.815622]  ? lapic_next_event+0x5a/0x90
[  404.819763]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.825300]  ? kvm_clock_read+0x18/0x30
[  404.829267]  ? kvm_sched_clock_read+0x9/0x20
[  404.833696]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  404.839249]  ? check_preemption_disabled+0x48/0x280
[  404.844313]  irq_exit+0x17f/0x1c0
[  404.847789]  smp_apic_timer_interrupt+0x1cb/0x760
[  404.852673]  ? smp_reschedule_interrupt+0x109/0x650
[  404.857701]  ? smp_call_function_single_interrupt+0x650/0x650
[  404.863578]  ? interrupt_entry+0xb5/0xc0
[  404.867687]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.872711]  ? trace_hardirqs_off_caller+0xbb/0x310
[  404.877721]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.882560]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.887596]  ? trace_hardirqs_on_caller+0x310/0x310
[  404.892614]  ? task_prio+0x50/0x50
[  404.896183]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  404.901725]  ? check_preemption_disabled+0x48/0x280
[  404.906762]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  404.911621]  apic_timer_interrupt+0xf/0x20
[  404.915848]  </IRQ>
[  404.918098] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  404.923031] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  404.941950] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  404.949848] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  404.957117] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  404.964393] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  404.971662] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  404.978928] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  404.986236]  skb_clone+0x1bb/0x500
[  404.989800]  ? skb_split+0x11e0/0x11e0
[  404.993686]  ? preempt_notifier_register+0x200/0x200
[  404.998783]  ? __switch_to_asm+0x34/0x70
[  405.002839]  ? __switch_to_asm+0x34/0x70
[  405.006899]  ? __switch_to_asm+0x40/0x70
[  405.010955]  ? __switch_to_asm+0x34/0x70
[  405.015008]  ? __switch_to_asm+0x40/0x70
[  405.019063]  ? __switch_to_asm+0x40/0x70
[  405.023167]  ? __switch_to_asm+0x34/0x70
[  405.027242]  ? __switch_to_asm+0x34/0x70
[  405.031340]  ? __switch_to_asm+0x40/0x70
[  405.035398]  ? __switch_to_asm+0x34/0x70
[  405.039464]  bpf_clone_redirect+0xb9/0x490
[  405.043707]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  405.048723]  ? __sched_text_start+0x8/0x8
[  405.052899]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  405.057692]  ? find_held_lock+0x36/0x1c0
[  405.061785]  ? lock_acquire+0x1ed/0x520
[  405.065756]  ? bpf_test_run+0x3ee/0x7a0
[  405.069724]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.075253]  ? check_preemption_disabled+0x48/0x280
[  405.080387]  ? kasan_check_read+0x11/0x20
[  405.084542]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.089821]  ? rcu_softirq_qs+0x20/0x20
[  405.093799]  ? preempt_schedule+0x4d/0x60
[  405.097953]  ? ___preempt_schedule+0x16/0x18
[  405.102369]  ? bpf_test_run+0x271/0x7a0
[  405.106359]  ? netlink_diag_dump+0x2a0/0x2a0
[  405.110788]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.116345]  ? bpf_test_init.isra.10+0x70/0x100
[  405.121019]  ? bpf_prog_test_run_skb+0x762/0xd60
[  405.125781]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  405.130659]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  405.136197]  ? fput+0x130/0x1a0
[  405.139481]  ? __bpf_prog_get+0x9b/0x290
[  405.143542]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  405.148401]  ? bpf_prog_test_run+0x130/0x1a0
[  405.152862]  ? __x64_sys_bpf+0x3d8/0x520
[  405.156919]  ? bpf_prog_get+0x20/0x20
[  405.160737]  ? do_syscall_64+0x1b9/0x820
[  405.164828]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  405.170218]  ? syscall_return_slowpath+0x5e0/0x5e0
[  405.175155]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.179999]  ? trace_hardirqs_on_caller+0x310/0x310
[  405.185011]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  405.190024]  ? prepare_exit_to_usermode+0x291/0x3b0
[  405.195044]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.199893]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  405.205272] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  405.205352] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  405.212207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  405.212212] Call Trace:
[  405.212217]  <IRQ>
[  405.212232]  dump_stack+0x244/0x39d
[  405.212252]  ? dump_stack_print_info.cold.1+0x20/0x20
[  405.218796] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  405.228075]  warn_alloc.cold.116+0xb7/0x1bd
[  405.230627] syz-executor4 cpuset=syz4 mems_allowed=0
[  405.232771]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  405.266270]  ? lock_downgrade+0x900/0x900
[  405.270425]  ? trace_hardirqs_off+0xb8/0x310
[  405.274842]  ? trace_hardirqs_off+0xb8/0x310
[  405.279276]  __alloc_pages_slowpath+0x2651/0x2de0
[  405.284156]  ? warn_alloc+0x120/0x120
[  405.287956]  ? print_usage_bug+0xc0/0xc0
[  405.292014]  ? warn_alloc+0x120/0x120
[  405.295824]  ? warn_alloc+0x120/0x120
[  405.299631]  ? print_usage_bug+0xc0/0xc0
[  405.303725]  ? print_usage_bug+0xc0/0xc0
[  405.307800]  ? __lock_acquire+0x62f/0x4c20
[  405.312035]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.317569]  ? should_fail+0x22d/0xd01
[  405.321458]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.326564]  ? __lock_acquire+0x62f/0x4c20
[  405.330796]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  405.335922]  ? __lock_acquire+0x62f/0x4c20
[  405.340165]  ? should_fail+0x22d/0xd01
[  405.344058]  ? find_held_lock+0x36/0x1c0
[  405.348114]  ? mark_held_locks+0x130/0x130
[  405.352431]  ? mark_held_locks+0x130/0x130
[  405.356691]  ? zap_class+0x640/0x640
[  405.360412]  ? zap_class+0x640/0x640
[  405.364122]  ? print_usage_bug+0xc0/0xc0
[  405.368194]  ? do_raw_spin_unlock+0xa7/0x330
[  405.372596]  ? zap_class+0x640/0x640
[  405.376324]  ? print_usage_bug+0xc0/0xc0
[  405.380392]  ? wq_watchdog_touch+0x9c/0xfe
[  405.384627]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.390174]  ? check_preemption_disabled+0x48/0x280
[  405.395196]  ? __lock_is_held+0xb5/0x140
[  405.399258]  __alloc_pages_nodemask+0xad8/0xea0
[  405.403925]  ? zap_class+0x640/0x640
[  405.407639]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  405.412667]  ? find_held_lock+0x36/0x1c0
[  405.416763]  ? ____cache_alloc_node+0x1c7/0x1e0
[  405.421440]  ? lock_downgrade+0x900/0x900
[  405.425586]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.431149]  cache_grow_begin+0xa5/0x8c0
[  405.435203]  ? do_raw_spin_unlock+0xa7/0x330
[  405.439624]  fallback_alloc+0x204/0x2e0
[  405.443605]  ____cache_alloc_node+0x1c7/0x1e0
[  405.448115]  kmem_cache_alloc_node+0xe3/0x730
[  405.452659]  ? ipv6_get_ifaddr+0x42e/0x620
[  405.456893]  __alloc_skb+0x119/0x770
[  405.460613]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  405.465918]  ? netdev_alloc_frag+0x1f0/0x1f0
[  405.470335]  ? lock_downgrade+0x900/0x900
[  405.474495]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.480057]  ? refcount_sub_and_test_checked+0x203/0x310
[  405.485515]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  405.490979]  ? addrconf_rs_timer+0x690/0x690
[  405.495407]  ndisc_alloc_skb+0x144/0x340
[  405.499467]  ndisc_send_rs+0x331/0x6e0
[  405.503355]  addrconf_rs_timer+0x314/0x690
[  405.507588]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.511823]  call_timer_fn+0x272/0x920
[  405.515759]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.519987]  ? process_timeout+0x40/0x40
[  405.524052]  ? mark_held_locks+0xc7/0x130
[  405.528195]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.532685]  ? _raw_spin_unlock_irq+0x27/0x80
[  405.537189]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.541451]  ? lockdep_hardirqs_on+0x296/0x5b0
[  405.546028]  ? trace_hardirqs_on+0xbd/0x310
[  405.550365]  ? kasan_check_read+0x11/0x20
[  405.554530]  ? __run_timers+0x7da/0xc70
[  405.558503]  ? trace_hardirqs_off_caller+0x310/0x310
[  405.563618]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.567896]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  405.572131]  __run_timers+0x7e5/0xc70
[  405.575961]  ? timer_fixup_init+0x70/0x70
[  405.580108]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  405.585171]  ? zap_class+0x640/0x640
[  405.588898]  ? print_usage_bug+0xc0/0xc0
[  405.592965]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  405.598194]  ? find_held_lock+0x36/0x1c0
[  405.602289]  ? zap_class+0x640/0x640
[  405.606004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.611540]  ? check_preemption_disabled+0x48/0x280
[  405.616564]  ? __lock_is_held+0xb5/0x140
[  405.620649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.626207]  ? check_preemption_disabled+0x48/0x280
[  405.631232]  run_timer_softirq+0x52/0xb0
[  405.635305]  ? rcu_read_lock_sched_held+0x14f/0x180
[  405.640326]  __do_softirq+0x308/0xb7e
[  405.644130]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  405.648646]  ? lock_downgrade+0x900/0x900
[  405.652799]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  405.657940]  ? pvclock_read_flags+0x160/0x160
[  405.662436]  ? lapic_next_event+0x5a/0x90
[  405.666605]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.672158]  ? kvm_clock_read+0x18/0x30
[  405.676144]  ? kvm_sched_clock_read+0x9/0x20
[  405.680569]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  405.686156]  ? check_preemption_disabled+0x48/0x280
[  405.691237]  irq_exit+0x17f/0x1c0
[  405.694696]  smp_apic_timer_interrupt+0x1cb/0x760
[  405.699541]  ? smp_reschedule_interrupt+0x109/0x650
[  405.704563]  ? smp_call_function_single_interrupt+0x650/0x650
[  405.710450]  ? interrupt_entry+0xb5/0xc0
[  405.714512]  ? trace_hardirqs_off_caller+0xbb/0x310
[  405.719526]  ? trace_hardirqs_off_caller+0xbb/0x310
[  405.724546]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.729407]  ? trace_hardirqs_on_caller+0x310/0x310
[  405.734425]  ? trace_hardirqs_on_caller+0x310/0x310
[  405.739448]  ? task_prio+0x50/0x50
[  405.742993]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  405.748535]  ? check_preemption_disabled+0x48/0x280
[  405.753562]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  405.758413]  apic_timer_interrupt+0xf/0x20
[  405.762654]  </IRQ>
[  405.764930] RIP: 0010:lock_acquire+0x268/0x520
[  405.769517] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  405.788413] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  405.796118] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  405.803394] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  405.810660] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  405.817950] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  405.825220] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  405.832513]  ? lruvec_lru_size+0x450/0x450
[  405.836766]  ? kasan_check_read+0x11/0x20
[  405.840926]  ? lock_release+0xa00/0xa00
[  405.844920]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  405.849859]  down_read_trylock+0xda/0x140
[  405.854008]  ? shrink_slab+0x207/0x8c0
[  405.857898]  ? downgrade_write+0x270/0x270
[  405.862160]  shrink_slab+0x207/0x8c0
[  405.865876]  ? shrink_active_list+0x1f00/0x1f00
[  405.870591]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  405.876232]  ? __lock_acquire+0x62f/0x4c20
[  405.880503]  ? percpu_ref_get_many+0x240/0x240
[  405.885104]  ? print_usage_bug+0xc0/0xc0
[  405.889181]  shrink_node+0x431/0x16b0
[  405.892985]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  405.898303]  ? shrink_node_memcg+0x18f0/0x18f0
[  405.902927]  ? kvm_clock_read+0x18/0x30
[  405.906923]  ? ktime_get+0x2c1/0x400
[  405.910642]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  405.915147]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  405.920687]  ? __cpuset_node_allowed+0x19b/0x660
[  405.925446]  ? mark_held_locks+0x130/0x130
[  405.929685]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  405.935400]  ? zap_class+0x640/0x640
[  405.939120]  do_try_to_free_pages+0x3e7/0x1290
[  405.943708]  ? zap_class+0x640/0x640
[  405.947438]  ? shrink_node+0x16b0/0x16b0
[  405.951506]  ? __lock_is_held+0xb5/0x140
[  405.955581]  try_to_free_pages+0x4d0/0xb90
[  405.959822]  ? do_try_to_free_pages+0x1290/0x1290
[  405.964679]  ? lock_acquire+0x1ed/0x520
[  405.968653]  ? set_page_refcounted+0x280/0x280
[  405.973244]  ? lock_release+0xa00/0xa00
[  405.977219]  ? _raw_spin_unlock_irq+0x60/0x80
[  405.981715]  ? psi_memstall_enter+0x240/0x2b0
[  405.986210]  ? psi_memstall_tick+0x230/0x230
[  405.990630]  __alloc_pages_slowpath+0xa48/0x2de0
[  405.995417]  ? warn_alloc+0x120/0x120
[  405.999220]  ? mark_held_locks+0x130/0x130
[  406.003461]  ? find_get_entry+0xaae/0x1120
[  406.007705]  ? filemap_map_pages+0x1a20/0x1a20
[  406.012297]  ? zap_class+0x640/0x640
[  406.016029]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.021567]  ? check_preemption_disabled+0x48/0x280
[  406.026582]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.032147]  ? should_fail+0x22d/0xd01
[  406.036043]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.041157]  ? zap_class+0x640/0x640
[  406.044895]  ? __lock_is_held+0xb5/0x140
[  406.048971]  ? mark_held_locks+0x130/0x130
[  406.053205]  ? lock_release+0xa00/0xa00
[  406.057175]  ? perf_trace_sched_process_exec+0x860/0x860
[  406.062618]  ? xa_load+0x2ba/0x460
[  406.066171]  ? lock_downgrade+0x900/0x900
[  406.070344]  ? __might_sleep+0x95/0x190
[  406.074327]  __alloc_pages_nodemask+0xad8/0xea0
[  406.079006]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  406.084013]  ? __page_cache_alloc+0x191/0x5c0
[  406.088505]  ? xa_load+0x2e1/0x460
[  406.092058]  ? xa_clear_mark+0x40/0x40
[  406.095944]  ? zap_class+0x640/0x640
[  406.099677]  ? zap_class+0x640/0x640
[  406.103386]  ? zap_class+0x640/0x640
[  406.107093]  ? __do_page_cache_readahead+0x663/0x810
[  406.112196]  ? find_held_lock+0x36/0x1c0
[  406.116279]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  406.121856]  alloc_pages_current+0x173/0x350
[  406.126269]  __page_cache_alloc+0x38c/0x5c0
[  406.130605]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.135525]  ? kasan_check_read+0x11/0x20
[  406.139667]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.144968]  ? generic_perform_write+0x6a0/0x6a0
[  406.149727]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.155257]  ? check_preemption_disabled+0x48/0x280
[  406.160282]  filemap_fault+0x1595/0x25f0
[  406.164353]  ? __lock_page_or_retry+0xa00/0xa00
[  406.169015]  ? mark_held_locks+0x130/0x130
[  406.173271]  ? filemap_map_pages+0xd6b/0x1a20
[  406.177794]  ? lock_downgrade+0x900/0x900
[  406.181935]  ? check_preemption_disabled+0x48/0x280
[  406.186948]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.191887]  ? kasan_check_read+0x11/0x20
[  406.196033]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.201303]  ? rcu_softirq_qs+0x20/0x20
[  406.205314]  ? filemap_map_pages+0xd92/0x1a20
[  406.209814]  ? find_get_entries_tag+0x1400/0x1400
[  406.214684]  ? debug_object_destroy+0x2b0/0x2b0
[  406.219349]  ? lock_pi_update_atomic+0x150/0x150
[  406.224102]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.229670]  ? lock_acquire+0x1ed/0x520
[  406.233672]  ? ext4_filemap_fault+0x7a/0xad
[  406.237996]  ? lock_release+0xa00/0xa00
[  406.241971]  ? perf_trace_sched_process_exec+0x860/0x860
[  406.247453]  ? print_usage_bug+0xc0/0xc0
[  406.251529]  ? print_usage_bug+0xc0/0xc0
[  406.255614]  ? down_read+0x8d/0x120
[  406.259236]  ? ext4_filemap_fault+0x7a/0xad
[  406.263569]  ? __down_interruptible+0x700/0x700
[  406.268243]  ext4_filemap_fault+0x82/0xad
[  406.272422]  __do_fault+0x100/0x6b0
[  406.276044]  ? find_held_lock+0x36/0x1c0
[  406.280116]  ? pmd_devmap_trans_unstable+0x220/0x220
[  406.285244]  ? mark_held_locks+0x130/0x130
[  406.289476]  ? mark_held_locks+0x130/0x130
[  406.293709]  ? kasan_check_read+0x11/0x20
[  406.297864]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.303420]  __handle_mm_fault+0x3ea0/0x5be0
[  406.307832]  ? perf_trace_lock+0x7a0/0x7a0
[  406.312069]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  406.316917]  ? __switch_to_asm+0x34/0x70
[  406.320970]  ? __switch_to_asm+0x34/0x70
[  406.325035]  ? zap_class+0x640/0x640
[  406.328740]  ? zap_class+0x640/0x640
[  406.332445]  ? __x64_sys_futex+0x53e/0x6a0
[  406.336691]  ? find_held_lock+0x36/0x1c0
[  406.340750]  ? handle_mm_fault+0x42a/0xc70
[  406.344990]  ? lock_downgrade+0x900/0x900
[  406.349177]  ? check_preemption_disabled+0x48/0x280
[  406.354202]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  406.359120]  ? kasan_check_read+0x11/0x20
[  406.363266]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  406.368535]  ? rcu_softirq_qs+0x20/0x20
[  406.372503]  ? trace_hardirqs_off_caller+0x310/0x310
[  406.377616]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.383180]  ? sync_mm_rss+0x9a/0x1c0
[  406.386976]  handle_mm_fault+0x54f/0xc70
[  406.391032]  ? __handle_mm_fault+0x5be0/0x5be0
[  406.395614]  ? find_vma+0x34/0x190
[  406.399160]  __do_page_fault+0x5e8/0xe60
[  406.403214]  ? trace_hardirqs_off+0xb8/0x310
[  406.407624]  do_page_fault+0xf2/0x7e0
[  406.411422]  ? vmalloc_sync_all+0x30/0x30
[  406.415569]  ? error_entry+0x70/0xd0
[  406.419305]  ? trace_hardirqs_off_caller+0xbb/0x310
[  406.424314]  ? trace_hardirqs_on_caller+0xc0/0x310
[  406.429237]  ? syscall_return_slowpath+0x5e0/0x5e0
[  406.434163]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.438997]  ? trace_hardirqs_on_caller+0x310/0x310
[  406.444018]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  406.449467]  ? prepare_exit_to_usermode+0x291/0x3b0
[  406.454510]  ? page_fault+0x8/0x30
[  406.458060]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  406.462895]  ? page_fault+0x8/0x30
[  406.466432]  page_fault+0x1e/0x30
[  406.469893] RIP: 0033:0x45ddf3
[  406.473121] Code: Bad RIP value.
[  406.476514] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  406.481883] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  406.489168] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  406.496431] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  406.503691] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  406.510955] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  406.518246] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  406.518251] warn_alloc_show_mem: 1 callbacks suppressed
[  406.518258] Mem-Info:
[  406.525529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  406.530891] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  406.530891]  active_file:17 inactive_file:17 isolated_file:0
[  406.530891]  unevictable:0 dirty:4 writeback:0 unstable:0
[  406.530891]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  406.530891]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  406.530891]  free:13550 free_pcp:124 free_cma:0
[  406.533259] Call Trace:
[  406.542641] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  406.575653]  <IRQ>
[  406.578219] 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
[  406.605964]  dump_stack+0x244/0x39d
[  406.608081] lowmem_reserve[]: 0 2818 6321 6321
[  406.634177]  ? dump_stack_print_info.cold.1+0x20/0x20
[  406.637788] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  406.642377]  warn_alloc.cold.116+0xb7/0x1bd
[  406.647533] lowmem_reserve[]: 0 0 3503 3503
[  406.674876]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  406.679173] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  406.683485]  ? lock_downgrade+0x900/0x900
[  406.688297] lowmem_reserve[]: 0 0 0 0
[  406.717176]  ? trace_hardirqs_off+0xb8/0x310
[  406.721297] 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
[  406.725087]  ? trace_hardirqs_off+0xb8/0x310
[  406.729467] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  406.742982]  __alloc_pages_slowpath+0x2651/0x2de0
[  406.747361] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  406.762103]  ? warn_alloc+0x120/0x120
[  406.766918] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  406.781636]  ? print_usage_bug+0xc0/0xc0
[  406.785432] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  406.794249]  ? warn_alloc+0x120/0x120
[  406.798317] 1360 total pagecache pages
[  406.806898]  ? warn_alloc+0x120/0x120
[  406.810700] 0 pages in swap cache
[  406.814591]  ? print_usage_bug+0xc0/0xc0
[  406.818393] Swap cache stats: add 0, delete 0, find 0/0
[  406.821834]  ? print_usage_bug+0xc0/0xc0
[  406.825884] Free swap  = 0kB
[  406.831244]  ? __lock_acquire+0x62f/0x4c20
[  406.835278] Total swap = 0kB
[  406.838301]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  406.842522] 1965979 pages RAM
[  406.845529]  ? should_fail+0x22d/0xd01
[  406.851033] 0 pages HighMem/MovableOnly
[  406.854126]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.858006] 342854 pages reserved
[  406.861983]  ? __lock_acquire+0x62f/0x4c20
[  406.867060] 0 pages cma reserved
[  406.870503]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  406.874809] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  406.878085]  ? __lock_acquire+0x62f/0x4c20
[  406.878099]  ? should_fail+0x22d/0xd01
[  406.883282] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  406.889697]  ? mark_held_locks+0x130/0x130
[  406.893920] syz-fuzzer cpuset=/ mems_allowed=0
[  406.897794]  ? mark_held_locks+0x130/0x130
[  406.921018]  ? zap_class+0x640/0x640
[  406.924735]  ? zap_class+0x640/0x640
[  406.928458]  ? print_usage_bug+0xc0/0xc0
[  406.932525]  ? wq_watchdog_touch+0x9c/0xfe
[  406.936784]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.942320]  ? check_preemption_disabled+0x48/0x280
[  406.947344]  ? __lock_is_held+0xb5/0x140
[  406.951588]  __alloc_pages_nodemask+0xad8/0xea0
[  406.956252]  ? zap_class+0x640/0x640
[  406.959979]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  406.965004]  ? find_held_lock+0x36/0x1c0
[  406.969069]  ? ____cache_alloc_node+0x1c7/0x1e0
[  406.973767]  ? lock_downgrade+0x900/0x900
[  406.977930]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  406.983469]  cache_grow_begin+0xa5/0x8c0
[  406.987526]  ? do_raw_spin_unlock+0xa7/0x330
[  406.991958]  fallback_alloc+0x204/0x2e0
[  406.995928]  ____cache_alloc_node+0x1c7/0x1e0
[  407.000433]  kmem_cache_alloc_node+0xe3/0x730
[  407.004941]  ? ipv6_get_ifaddr+0x42e/0x620
[  407.009182]  __alloc_skb+0x119/0x770
[  407.012906]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.018224]  ? netdev_alloc_frag+0x1f0/0x1f0
[  407.022626]  ? lock_downgrade+0x900/0x900
[  407.026775]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.032307]  ? refcount_sub_and_test_checked+0x203/0x310
[  407.037752]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  407.043214]  ? addrconf_rs_timer+0x690/0x690
[  407.047631]  ndisc_alloc_skb+0x144/0x340
[  407.051703]  ndisc_send_rs+0x331/0x6e0
[  407.055597]  addrconf_rs_timer+0x314/0x690
[  407.059857]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.064100]  call_timer_fn+0x272/0x920
[  407.068007]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.072257]  ? process_timeout+0x40/0x40
[  407.076335]  ? __run_timers+0x7da/0xc70
[  407.080497]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.084997]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.089495]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.093731]  ? lockdep_hardirqs_on+0x296/0x5b0
[  407.098318]  ? trace_hardirqs_on+0xbd/0x310
[  407.102656]  ? kasan_check_read+0x11/0x20
[  407.106806]  ? __run_timers+0x7da/0xc70
[  407.110797]  ? trace_hardirqs_off_caller+0x310/0x310
[  407.115930]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.120172]  __run_timers+0x7e5/0xc70
[  407.123986]  ? timer_fixup_init+0x70/0x70
[  407.128145]  ? kasan_check_read+0x11/0x20
[  407.132294]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.137585]  ? rcu_softirq_qs+0x20/0x20
[  407.141562]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.147100]  ? check_preemption_disabled+0x48/0x280
[  407.152130]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  407.156901]  ? retint_kernel+0x2d/0x2d
[  407.160802]  ? trace_hardirqs_on_caller+0xc0/0x310
[  407.165746]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  407.170537]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  407.176017]  ? zap_class+0x640/0x640
[  407.179737]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.185275]  ? check_preemption_disabled+0x48/0x280
[  407.190301]  ? __lock_is_held+0xb5/0x140
[  407.194367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.199905]  ? check_preemption_disabled+0x48/0x280
[  407.204928]  run_timer_softirq+0x52/0xb0
[  407.208989]  ? rcu_read_lock_sched_held+0x14f/0x180
[  407.214007]  __do_softirq+0x308/0xb7e
[  407.217812]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  407.222308]  ? lock_downgrade+0x900/0x900
[  407.226459]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  407.231571]  ? pvclock_read_flags+0x160/0x160
[  407.236068]  ? lapic_next_event+0x5a/0x90
[  407.240250]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.245847]  ? kvm_clock_read+0x18/0x30
[  407.249822]  ? kvm_sched_clock_read+0x9/0x20
[  407.254231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.259778]  ? check_preemption_disabled+0x48/0x280
[  407.264822]  irq_exit+0x17f/0x1c0
[  407.268317]  smp_apic_timer_interrupt+0x1cb/0x760
[  407.273167]  ? smp_reschedule_interrupt+0x109/0x650
[  407.278202]  ? smp_call_function_single_interrupt+0x650/0x650
[  407.284098]  ? interrupt_entry+0xb5/0xc0
[  407.288178]  ? trace_hardirqs_off_caller+0xbb/0x310
[  407.293224]  ? trace_hardirqs_off_caller+0xbb/0x310
[  407.298241]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.303087]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.308103]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.313147]  ? task_prio+0x50/0x50
[  407.316689]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.322226]  ? check_preemption_disabled+0x48/0x280
[  407.327242]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.332088]  apic_timer_interrupt+0xf/0x20
[  407.336312]  </IRQ>
[  407.338561] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  407.343489] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  407.362384] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  407.370091] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  407.377350] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  407.384611] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  407.391868] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  407.399126] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  407.406480]  skb_clone+0x1bb/0x500
[  407.410052]  ? skb_split+0x11e0/0x11e0
[  407.413954]  ? preempt_notifier_register+0x200/0x200
[  407.419065]  ? __switch_to_asm+0x34/0x70
[  407.423116]  ? __switch_to_asm+0x34/0x70
[  407.427173]  ? __switch_to_asm+0x40/0x70
[  407.431226]  ? __switch_to_asm+0x34/0x70
[  407.435304]  ? __switch_to_asm+0x40/0x70
[  407.439358]  ? __switch_to_asm+0x40/0x70
[  407.443422]  ? __switch_to_asm+0x34/0x70
[  407.447474]  ? __switch_to_asm+0x34/0x70
[  407.451523]  ? __switch_to_asm+0x40/0x70
[  407.455590]  ? __switch_to_asm+0x34/0x70
[  407.459661]  bpf_clone_redirect+0xb9/0x490
[  407.463946]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  407.468958]  ? __sched_text_start+0x8/0x8
[  407.473117]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  407.477882]  ? find_held_lock+0x36/0x1c0
[  407.481960]  ? lock_acquire+0x1ed/0x520
[  407.485932]  ? bpf_test_run+0x3ee/0x7a0
[  407.489914]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.495445]  ? check_preemption_disabled+0x48/0x280
[  407.500507]  ? kasan_check_read+0x11/0x20
[  407.504664]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.509945]  ? rcu_softirq_qs+0x20/0x20
[  407.513963]  ? preempt_schedule+0x4d/0x60
[  407.518103]  ? ___preempt_schedule+0x16/0x18
[  407.522542]  ? bpf_test_run+0x271/0x7a0
[  407.526524]  ? netlink_diag_dump+0x2a0/0x2a0
[  407.530935]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.536466]  ? bpf_test_init.isra.10+0x70/0x100
[  407.541139]  ? bpf_prog_test_run_skb+0x762/0xd60
[  407.545925]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  407.550765]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  407.556295]  ? fput+0x130/0x1a0
[  407.559571]  ? __bpf_prog_get+0x9b/0x290
[  407.563624]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  407.568487]  ? bpf_prog_test_run+0x130/0x1a0
[  407.572925]  ? __x64_sys_bpf+0x3d8/0x520
[  407.576985]  ? bpf_prog_get+0x20/0x20
[  407.580832]  ? do_syscall_64+0x1b9/0x820
[  407.584888]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  407.590251]  ? syscall_return_slowpath+0x5e0/0x5e0
[  407.595179]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.600019]  ? trace_hardirqs_on_caller+0x310/0x310
[  407.605031]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  407.610045]  ? prepare_exit_to_usermode+0x291/0x3b0
[  407.615065]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  407.619949]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  407.625329] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  407.625437] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  407.632255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  407.632260] Call Trace:
[  407.632265]  <IRQ>
[  407.632281]  dump_stack+0x244/0x39d
[  407.632302]  ? dump_stack_print_info.cold.1+0x20/0x20
[  407.638845] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  407.648124]  warn_alloc.cold.116+0xb7/0x1bd
[  407.650672] syz-executor4 cpuset=syz4 mems_allowed=0
[  407.652814]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  407.686297]  ? lock_downgrade+0x900/0x900
[  407.690471]  ? trace_hardirqs_off+0xb8/0x310
[  407.694903]  ? trace_hardirqs_off+0xb8/0x310
[  407.699323]  __alloc_pages_slowpath+0x2651/0x2de0
[  407.704199]  ? warn_alloc+0x120/0x120
[  407.707998]  ? print_usage_bug+0xc0/0xc0
[  407.712057]  ? warn_alloc+0x120/0x120
[  407.715861]  ? warn_alloc+0x120/0x120
[  407.719674]  ? print_usage_bug+0xc0/0xc0
[  407.723750]  ? kvm_clock_read+0x18/0x30
[  407.727738]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  407.732754]  ? print_usage_bug+0xc0/0xc0
[  407.736833]  ? __lock_acquire+0x62f/0x4c20
[  407.741067]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  407.746600]  ? should_fail+0x22d/0xd01
[  407.750500]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.755774]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.760912]  ? __lock_acquire+0x62f/0x4c20
[  407.765153]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  407.770255]  ? __lock_acquire+0x62f/0x4c20
[  407.774486]  ? should_fail+0x22d/0xd01
[  407.778365]  ? rcu_irq_exit+0x1a2/0x390
[  407.782346]  ? mark_held_locks+0x130/0x130
[  407.786582]  ? mark_held_locks+0x130/0x130
[  407.790829]  ? mark_held_locks+0xc7/0x130
[  407.794969]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  407.799992]  ? zap_class+0x640/0x640
[  407.803704]  ? print_usage_bug+0xc0/0xc0
[  407.807765]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.813310]  ? check_preemption_disabled+0x48/0x280
[  407.818391]  ? __lock_is_held+0xb5/0x140
[  407.822452]  __alloc_pages_nodemask+0xad8/0xea0
[  407.827116]  ? zap_class+0x640/0x640
[  407.830856]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  407.835883]  ? find_held_lock+0x36/0x1c0
[  407.839951]  ? ____cache_alloc_node+0x1c7/0x1e0
[  407.844618]  ? lock_downgrade+0x900/0x900
[  407.848771]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.854307]  cache_grow_begin+0xa5/0x8c0
[  407.858380]  ? do_raw_spin_unlock+0xa7/0x330
[  407.862790]  fallback_alloc+0x204/0x2e0
[  407.866778]  ____cache_alloc_node+0x1c7/0x1e0
[  407.871275]  kmem_cache_alloc_node+0xe3/0x730
[  407.875767]  ? ipv6_get_ifaddr+0x42e/0x620
[  407.880012]  __alloc_skb+0x119/0x770
[  407.883724]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  407.889002]  ? netdev_alloc_frag+0x1f0/0x1f0
[  407.893490]  ? lock_downgrade+0x900/0x900
[  407.897657]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  407.903224]  ? refcount_sub_and_test_checked+0x203/0x310
[  407.908676]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  407.914129]  ? addrconf_rs_timer+0x690/0x690
[  407.918556]  ndisc_alloc_skb+0x144/0x340
[  407.922620]  ndisc_send_rs+0x331/0x6e0
[  407.926534]  addrconf_rs_timer+0x314/0x690
[  407.930786]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.935027]  call_timer_fn+0x272/0x920
[  407.938915]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.943161]  ? process_timeout+0x40/0x40
[  407.947237]  ? mark_held_locks+0xc7/0x130
[  407.951385]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.955878]  ? _raw_spin_unlock_irq+0x27/0x80
[  407.960404]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.964636]  ? lockdep_hardirqs_on+0x296/0x5b0
[  407.969212]  ? trace_hardirqs_on+0xbd/0x310
[  407.973529]  ? kasan_check_read+0x11/0x20
[  407.977689]  ? __run_timers+0x7da/0xc70
[  407.981675]  ? trace_hardirqs_off_caller+0x310/0x310
[  407.986796]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.991053]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  407.995300]  __run_timers+0x7e5/0xc70
[  407.999106]  ? timer_fixup_init+0x70/0x70
[  408.003258]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  408.008288]  ? zap_class+0x640/0x640
[  408.012005]  ? print_usage_bug+0xc0/0xc0
[  408.016067]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  408.021259]  ? find_held_lock+0x36/0x1c0
[  408.025325]  ? zap_class+0x640/0x640
[  408.029042]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.034576]  ? check_preemption_disabled+0x48/0x280
[  408.039597]  ? __lock_is_held+0xb5/0x140
[  408.043652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.049211]  ? check_preemption_disabled+0x48/0x280
[  408.054259]  run_timer_softirq+0x52/0xb0
[  408.058321]  ? rcu_read_lock_sched_held+0x14f/0x180
[  408.063333]  __do_softirq+0x308/0xb7e
[  408.067130]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  408.071629]  ? lock_downgrade+0x900/0x900
[  408.075781]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  408.080895]  ? pvclock_read_flags+0x160/0x160
[  408.085414]  ? lapic_next_event+0x5a/0x90
[  408.089580]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.095119]  ? kvm_clock_read+0x18/0x30
[  408.099097]  ? kvm_sched_clock_read+0x9/0x20
[  408.103503]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.109036]  ? check_preemption_disabled+0x48/0x280
[  408.114071]  irq_exit+0x17f/0x1c0
[  408.117536]  smp_apic_timer_interrupt+0x1cb/0x760
[  408.122371]  ? smp_reschedule_interrupt+0x109/0x650
[  408.127431]  ? smp_call_function_single_interrupt+0x650/0x650
[  408.133323]  ? interrupt_entry+0xb5/0xc0
[  408.137390]  ? trace_hardirqs_off_caller+0xbb/0x310
[  408.142414]  ? trace_hardirqs_off_caller+0xbb/0x310
[  408.147456]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.152289]  ? trace_hardirqs_on_caller+0x310/0x310
[  408.157307]  ? trace_hardirqs_on_caller+0x310/0x310
[  408.162324]  ? task_prio+0x50/0x50
[  408.165858]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.171408]  ? check_preemption_disabled+0x48/0x280
[  408.176437]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.181292]  apic_timer_interrupt+0xf/0x20
[  408.185631]  </IRQ>
[  408.187869] RIP: 0010:lock_acquire+0x268/0x520
[  408.192478] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  408.211379] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  408.219097] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  408.226372] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  408.233650] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  408.240922] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  408.248192] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  408.255526]  ? lruvec_lru_size+0x450/0x450
[  408.259774]  ? kasan_check_read+0x11/0x20
[  408.263947]  ? lock_release+0xa00/0xa00
[  408.267952]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  408.272923]  down_read_trylock+0xda/0x140
[  408.277068]  ? shrink_slab+0x207/0x8c0
[  408.280964]  ? downgrade_write+0x270/0x270
[  408.285215]  shrink_slab+0x207/0x8c0
[  408.288936]  ? shrink_active_list+0x1f00/0x1f00
[  408.293615]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  408.299243]  ? __lock_acquire+0x62f/0x4c20
[  408.303483]  ? percpu_ref_get_many+0x240/0x240
[  408.308085]  ? print_usage_bug+0xc0/0xc0
[  408.312169]  shrink_node+0x431/0x16b0
[  408.315969]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  408.321273]  ? shrink_node_memcg+0x18f0/0x18f0
[  408.325862]  ? kvm_clock_read+0x18/0x30
[  408.329854]  ? ktime_get+0x2c1/0x400
[  408.333574]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  408.338076]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  408.343614]  ? __cpuset_node_allowed+0x19b/0x660
[  408.348374]  ? mark_held_locks+0x130/0x130
[  408.352630]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  408.358342]  ? zap_class+0x640/0x640
[  408.362074]  do_try_to_free_pages+0x3e7/0x1290
[  408.366655]  ? zap_class+0x640/0x640
[  408.370385]  ? shrink_node+0x16b0/0x16b0
[  408.374452]  ? __lock_is_held+0xb5/0x140
[  408.378524]  try_to_free_pages+0x4d0/0xb90
[  408.382763]  ? do_try_to_free_pages+0x1290/0x1290
[  408.387643]  ? lock_acquire+0x1ed/0x520
[  408.391636]  ? set_page_refcounted+0x280/0x280
[  408.396224]  ? lock_release+0xa00/0xa00
[  408.400202]  ? _raw_spin_unlock_irq+0x60/0x80
[  408.404700]  ? psi_memstall_enter+0x240/0x2b0
[  408.409199]  ? psi_memstall_tick+0x230/0x230
[  408.413619]  __alloc_pages_slowpath+0xa48/0x2de0
[  408.418403]  ? warn_alloc+0x120/0x120
[  408.422208]  ? mark_held_locks+0x130/0x130
[  408.426452]  ? find_get_entry+0xaae/0x1120
[  408.430697]  ? filemap_map_pages+0x1a20/0x1a20
[  408.435285]  ? zap_class+0x640/0x640
[  408.439006]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.444549]  ? check_preemption_disabled+0x48/0x280
[  408.449591]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.455141]  ? should_fail+0x22d/0xd01
[  408.459041]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  408.464156]  ? zap_class+0x640/0x640
[  408.467918]  ? __lock_is_held+0xb5/0x140
[  408.472008]  ? mark_held_locks+0x130/0x130
[  408.476255]  ? lock_release+0xa00/0xa00
[  408.480245]  ? perf_trace_sched_process_exec+0x860/0x860
[  408.485699]  ? xa_load+0x2ba/0x460
[  408.489243]  ? lock_downgrade+0x900/0x900
[  408.493402]  ? __might_sleep+0x95/0x190
[  408.497386]  __alloc_pages_nodemask+0xad8/0xea0
[  408.502067]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  408.507083]  ? __page_cache_alloc+0x191/0x5c0
[  408.511596]  ? xa_load+0x2e1/0x460
[  408.515165]  ? xa_clear_mark+0x40/0x40
[  408.519057]  ? zap_class+0x640/0x640
[  408.522784]  ? zap_class+0x640/0x640
[  408.526506]  ? zap_class+0x640/0x640
[  408.530225]  ? __do_page_cache_readahead+0x663/0x810
[  408.535345]  ? find_held_lock+0x36/0x1c0
[  408.539414]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  408.544962]  alloc_pages_current+0x173/0x350
[  408.549386]  __page_cache_alloc+0x38c/0x5c0
[  408.553707]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.558644]  ? kasan_check_read+0x11/0x20
[  408.562793]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.568089]  ? generic_perform_write+0x6a0/0x6a0
[  408.572876]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.578476]  ? check_preemption_disabled+0x48/0x280
[  408.583505]  filemap_fault+0x1595/0x25f0
[  408.587581]  ? __lock_page_or_retry+0xa00/0xa00
[  408.592258]  ? mark_held_locks+0x130/0x130
[  408.596520]  ? filemap_map_pages+0xd6b/0x1a20
[  408.601019]  ? lock_downgrade+0x900/0x900
[  408.605175]  ? check_preemption_disabled+0x48/0x280
[  408.610197]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.615132]  ? kasan_check_read+0x11/0x20
[  408.619308]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.624587]  ? rcu_softirq_qs+0x20/0x20
[  408.628581]  ? filemap_map_pages+0xd92/0x1a20
[  408.633105]  ? find_get_entries_tag+0x1400/0x1400
[  408.637964]  ? debug_object_destroy+0x2b0/0x2b0
[  408.642647]  ? lock_pi_update_atomic+0x150/0x150
[  408.647409]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.652963]  ? lock_acquire+0x1ed/0x520
[  408.656939]  ? ext4_filemap_fault+0x7a/0xad
[  408.661266]  ? lock_release+0xa00/0xa00
[  408.665238]  ? perf_trace_sched_process_exec+0x860/0x860
[  408.670701]  ? print_usage_bug+0xc0/0xc0
[  408.674779]  ? print_usage_bug+0xc0/0xc0
[  408.678888]  ? down_read+0x8d/0x120
[  408.682519]  ? ext4_filemap_fault+0x7a/0xad
[  408.686882]  ? __down_interruptible+0x700/0x700
[  408.691570]  ext4_filemap_fault+0x82/0xad
[  408.695723]  __do_fault+0x100/0x6b0
[  408.699362]  ? find_held_lock+0x36/0x1c0
[  408.703427]  ? pmd_devmap_trans_unstable+0x220/0x220
[  408.708565]  ? mark_held_locks+0x130/0x130
[  408.712803]  ? mark_held_locks+0x130/0x130
[  408.717052]  ? kasan_check_read+0x11/0x20
[  408.721200]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  408.726741]  __handle_mm_fault+0x3ea0/0x5be0
[  408.731165]  ? perf_trace_lock+0x7a0/0x7a0
[  408.735422]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  408.740281]  ? __switch_to_asm+0x34/0x70
[  408.744347]  ? __switch_to_asm+0x34/0x70
[  408.748423]  ? zap_class+0x640/0x640
[  408.752150]  ? zap_class+0x640/0x640
[  408.755868]  ? __x64_sys_futex+0x53e/0x6a0
[  408.760110]  ? find_held_lock+0x36/0x1c0
[  408.764189]  ? handle_mm_fault+0x42a/0xc70
[  408.768428]  ? lock_downgrade+0x900/0x900
[  408.772582]  ? check_preemption_disabled+0x48/0x280
[  408.777629]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  408.782563]  ? kasan_check_read+0x11/0x20
[  408.786711]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  408.792019]  ? rcu_softirq_qs+0x20/0x20
[  408.795992]  ? trace_hardirqs_off_caller+0x310/0x310
[  408.801105]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  408.806652]  ? sync_mm_rss+0x9a/0x1c0
[  408.810457]  handle_mm_fault+0x54f/0xc70
[  408.814523]  ? __handle_mm_fault+0x5be0/0x5be0
[  408.819152]  ? find_vma+0x34/0x190
[  408.822713]  __do_page_fault+0x5e8/0xe60
[  408.826777]  ? trace_hardirqs_off+0xb8/0x310
[  408.831205]  do_page_fault+0xf2/0x7e0
[  408.835012]  ? vmalloc_sync_all+0x30/0x30
[  408.839178]  ? error_entry+0x70/0xd0
[  408.842893]  ? trace_hardirqs_off_caller+0xbb/0x310
[  408.847935]  ? trace_hardirqs_on_caller+0xc0/0x310
[  408.852866]  ? syscall_return_slowpath+0x5e0/0x5e0
[  408.857813]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.862660]  ? trace_hardirqs_on_caller+0x310/0x310
[  408.867675]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  408.873156]  ? prepare_exit_to_usermode+0x291/0x3b0
[  408.878195]  ? page_fault+0x8/0x30
[  408.881743]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  408.886591]  ? page_fault+0x8/0x30
[  408.890152]  page_fault+0x1e/0x30
[  408.893607] RIP: 0033:0x45ddf3
[  408.896816] Code: Bad RIP value.
[  408.900193] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  408.905554] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  408.912820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  408.920088] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  408.927357] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  408.934626] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  408.941932] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  408.941937] warn_alloc_show_mem: 1 callbacks suppressed
[  408.941944] Mem-Info:
[  408.949418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  408.954801] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  408.954801]  active_file:17 inactive_file:17 isolated_file:0
[  408.954801]  unevictable:0 dirty:4 writeback:0 unstable:0
[  408.954801]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  408.954801]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  408.954801]  free:13550 free_pcp:124 free_cma:0
[  408.957176] Call Trace:
[  408.966565] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  408.999600]  <IRQ>
[  409.002184] 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
[  409.029964]  dump_stack+0x244/0x39d
[  409.032089] lowmem_reserve[]: 0 2818 6321 6321
[  409.058213]  ? dump_stack_print_info.cold.1+0x20/0x20
[  409.061815] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  409.066415]  warn_alloc.cold.116+0xb7/0x1bd
[  409.071583] lowmem_reserve[]: 0 0 3503 3503
[  409.099064]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  409.103385] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  409.107710]  ? lock_downgrade+0x900/0x900
[  409.112528] lowmem_reserve[]: 0 0 0 0
[  409.141433]  ? trace_hardirqs_off+0xb8/0x310
[  409.145545] 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
[  409.149342]  ? trace_hardirqs_off+0xb8/0x310
[  409.153723] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  409.167246]  __alloc_pages_slowpath+0x2651/0x2de0
[  409.171624] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  409.186386]  ? warn_alloc+0x120/0x120
[  409.191187] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  409.205931]  ? print_usage_bug+0xc0/0xc0
[  409.209727] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  409.218553]  ? warn_alloc+0x120/0x120
[  409.222588] 1360 total pagecache pages
[  409.231185]  ? warn_alloc+0x120/0x120
[  409.234969] 0 pages in swap cache
[  409.238843]  ? print_usage_bug+0xc0/0xc0
[  409.242618] Swap cache stats: add 0, delete 0, find 0/0
[  409.246061]  ? print_usage_bug+0xc0/0xc0
[  409.250098] Free swap  = 0kB
[  409.255457]  ? __lock_acquire+0x62f/0x4c20
[  409.259492] Total swap = 0kB
[  409.262510]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.266720] 1965979 pages RAM
[  409.269734]  ? should_fail+0x22d/0xd01
[  409.275240] 0 pages HighMem/MovableOnly
[  409.275249] 342854 pages reserved
[  409.278349]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  409.282209] 0 pages cma reserved
[  409.286183]  ? __lock_acquire+0x62f/0x4c20
[  409.289686] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  409.294704]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  409.294717]  ? __lock_acquire+0x62f/0x4c20
[  409.294733]  ? should_fail+0x22d/0xd01
[  409.298154] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  409.302307]  ? find_held_lock+0x36/0x1c0
[  409.308779] syz-fuzzer cpuset=/ mems_allowed=0
[  409.313881]  ? mark_held_locks+0x130/0x130
[  409.345010]  ? mark_held_locks+0x130/0x130
[  409.349246]  ? zap_class+0x640/0x640
[  409.352967]  ? zap_class+0x640/0x640
[  409.356681]  ? print_usage_bug+0xc0/0xc0
[  409.360740]  ? do_raw_spin_unlock+0xa7/0x330
[  409.365172]  ? zap_class+0x640/0x640
[  409.368940]  ? print_usage_bug+0xc0/0xc0
[  409.372999]  ? wq_watchdog_touch+0x9c/0xfe
[  409.377234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.382777]  ? check_preemption_disabled+0x48/0x280
[  409.387815]  ? __lock_is_held+0xb5/0x140
[  409.391885]  __alloc_pages_nodemask+0xad8/0xea0
[  409.396558]  ? zap_class+0x640/0x640
[  409.400283]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  409.405308]  ? find_held_lock+0x36/0x1c0
[  409.409397]  ? ____cache_alloc_node+0x1c7/0x1e0
[  409.414074]  ? lock_downgrade+0x900/0x900
[  409.418261]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.423807]  cache_grow_begin+0xa5/0x8c0
[  409.427872]  ? do_raw_spin_unlock+0xa7/0x330
[  409.432293]  fallback_alloc+0x204/0x2e0
[  409.436287]  ____cache_alloc_node+0x1c7/0x1e0
[  409.440803]  kmem_cache_alloc_node+0xe3/0x730
[  409.445303]  ? ipv6_get_ifaddr+0x42e/0x620
[  409.449562]  __alloc_skb+0x119/0x770
[  409.453275]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.458556]  ? netdev_alloc_frag+0x1f0/0x1f0
[  409.462967]  ? lock_downgrade+0x900/0x900
[  409.467150]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.472693]  ? refcount_sub_and_test_checked+0x203/0x310
[  409.478156]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  409.483613]  ? addrconf_rs_timer+0x690/0x690
[  409.488037]  ndisc_alloc_skb+0x144/0x340
[  409.492158]  ndisc_send_rs+0x331/0x6e0
[  409.496054]  addrconf_rs_timer+0x314/0x690
[  409.500294]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.504541]  call_timer_fn+0x272/0x920
[  409.508432]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.512668]  ? process_timeout+0x40/0x40
[  409.516754]  ? __run_timers+0x7da/0xc70
[  409.520782]  ? _raw_spin_unlock_irq+0x27/0x80
[  409.525291]  ? _raw_spin_unlock_irq+0x27/0x80
[  409.529784]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.534022]  ? lockdep_hardirqs_on+0x296/0x5b0
[  409.538633]  ? trace_hardirqs_on+0xbd/0x310
[  409.542971]  ? kasan_check_read+0x11/0x20
[  409.547119]  ? __run_timers+0x7da/0xc70
[  409.551106]  ? trace_hardirqs_off_caller+0x310/0x310
[  409.556236]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.560477]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  409.564713]  __run_timers+0x7e5/0xc70
[  409.568557]  ? timer_fixup_init+0x70/0x70
[  409.572709]  ? kasan_check_read+0x11/0x20
[  409.576861]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.582163]  ? rcu_softirq_qs+0x20/0x20
[  409.586153]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.591696]  ? check_preemption_disabled+0x48/0x280
[  409.596721]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  409.601485]  ? retint_kernel+0x2d/0x2d
[  409.605380]  ? trace_hardirqs_on_caller+0xc0/0x310
[  409.610319]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  409.615080]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  409.620537]  ? zap_class+0x640/0x640
[  409.624261]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.629801]  ? check_preemption_disabled+0x48/0x280
[  409.634827]  ? __lock_is_held+0xb5/0x140
[  409.638891]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.644437]  ? check_preemption_disabled+0x48/0x280
[  409.649460]  run_timer_softirq+0x52/0xb0
[  409.653538]  ? rcu_read_lock_sched_held+0x14f/0x180
[  409.658557]  __do_softirq+0x308/0xb7e
[  409.662367]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  409.666869]  ? lock_downgrade+0x900/0x900
[  409.671023]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  409.676143]  ? pvclock_read_flags+0x160/0x160
[  409.680645]  ? lapic_next_event+0x5a/0x90
[  409.684797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.690341]  ? kvm_clock_read+0x18/0x30
[  409.694318]  ? kvm_sched_clock_read+0x9/0x20
[  409.698729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.704273]  ? check_preemption_disabled+0x48/0x280
[  409.709301]  irq_exit+0x17f/0x1c0
[  409.712760]  smp_apic_timer_interrupt+0x1cb/0x760
[  409.717602]  ? smp_reschedule_interrupt+0x109/0x650
[  409.722620]  ? smp_call_function_single_interrupt+0x650/0x650
[  409.728509]  ? interrupt_entry+0xb5/0xc0
[  409.732575]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.737590]  ? trace_hardirqs_off_caller+0xbb/0x310
[  409.742607]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.747457]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.752476]  ? trace_hardirqs_on_caller+0x310/0x310
[  409.757496]  ? task_prio+0x50/0x50
[  409.761038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.766597]  ? check_preemption_disabled+0x48/0x280
[  409.771621]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  409.776474]  apic_timer_interrupt+0xf/0x20
[  409.780709]  </IRQ>
[  409.782965] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  409.787942] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  409.806867] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  409.814576] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  409.821844] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  409.829110] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  409.836421] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  409.843690] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  409.851008]  skb_clone+0x1bb/0x500
[  409.854570]  ? skb_split+0x11e0/0x11e0
[  409.858496]  ? preempt_notifier_register+0x200/0x200
[  409.863612]  ? __switch_to_asm+0x34/0x70
[  409.867674]  ? __switch_to_asm+0x34/0x70
[  409.871734]  ? __switch_to_asm+0x40/0x70
[  409.875792]  ? __switch_to_asm+0x34/0x70
[  409.879868]  ? __switch_to_asm+0x40/0x70
[  409.883925]  ? __switch_to_asm+0x40/0x70
[  409.887985]  ? __switch_to_asm+0x34/0x70
[  409.892042]  ? __switch_to_asm+0x34/0x70
[  409.896102]  ? __switch_to_asm+0x40/0x70
[  409.900164]  ? __switch_to_asm+0x34/0x70
[  409.904233]  bpf_clone_redirect+0xb9/0x490
[  409.908481]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  409.913504]  ? __sched_text_start+0x8/0x8
[  409.917653]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  409.922432]  ? find_held_lock+0x36/0x1c0
[  409.926502]  ? lock_acquire+0x1ed/0x520
[  409.930478]  ? bpf_test_run+0x3ee/0x7a0
[  409.934491]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  409.940035]  ? check_preemption_disabled+0x48/0x280
[  409.945077]  ? kasan_check_read+0x11/0x20
[  409.949241]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  409.954519]  ? rcu_softirq_qs+0x20/0x20
[  409.958496]  ? preempt_schedule+0x4d/0x60
[  409.962648]  ? ___preempt_schedule+0x16/0x18
[  409.967066]  ? bpf_test_run+0x271/0x7a0
[  409.971071]  ? netlink_diag_dump+0x2a0/0x2a0
[  409.975488]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  409.981024]  ? bpf_test_init.isra.10+0x70/0x100
[  409.985718]  ? bpf_prog_test_run_skb+0x762/0xd60
[  409.990488]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  409.995346]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  410.000884]  ? fput+0x130/0x1a0
[  410.004174]  ? __bpf_prog_get+0x9b/0x290
[  410.008246]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  410.013088]  ? bpf_prog_test_run+0x130/0x1a0
[  410.017501]  ? __x64_sys_bpf+0x3d8/0x520
[  410.021590]  ? bpf_prog_get+0x20/0x20
[  410.025420]  ? do_syscall_64+0x1b9/0x820
[  410.029512]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  410.034880]  ? syscall_return_slowpath+0x5e0/0x5e0
[  410.039809]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.044655]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.049675]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  410.054694]  ? prepare_exit_to_usermode+0x291/0x3b0
[  410.059714]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.064563]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  410.069946] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  410.070032] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  410.076882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  410.076888] Call Trace:
[  410.076895]  <IRQ>
[  410.076920]  dump_stack+0x244/0x39d
[  410.076939]  ? dump_stack_print_info.cold.1+0x20/0x20
[  410.083529] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  410.092794]  warn_alloc.cold.116+0xb7/0x1bd
[  410.095345] syz-executor4 cpuset=syz4 mems_allowed=0
[  410.097507]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  410.131083]  ? lock_downgrade+0x900/0x900
[  410.135331]  ? trace_hardirqs_off+0xb8/0x310
[  410.139746]  ? trace_hardirqs_off+0xb8/0x310
[  410.144174]  __alloc_pages_slowpath+0x2651/0x2de0
[  410.149048]  ? warn_alloc+0x120/0x120
[  410.152852]  ? print_usage_bug+0xc0/0xc0
[  410.156936]  ? warn_alloc+0x120/0x120
[  410.160742]  ? warn_alloc+0x120/0x120
[  410.164552]  ? print_usage_bug+0xc0/0xc0
[  410.168622]  ? print_usage_bug+0xc0/0xc0
[  410.172690]  ? __lock_acquire+0x62f/0x4c20
[  410.176936]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.182480]  ? should_fail+0x22d/0xd01
[  410.186374]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.191477]  ? __lock_acquire+0x62f/0x4c20
[  410.195736]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.200859]  ? __lock_acquire+0x62f/0x4c20
[  410.205095]  ? should_fail+0x22d/0xd01
[  410.208982]  ? find_held_lock+0x36/0x1c0
[  410.213050]  ? mark_held_locks+0x130/0x130
[  410.217311]  ? mark_held_locks+0x130/0x130
[  410.221557]  ? zap_class+0x640/0x640
[  410.225273]  ? zap_class+0x640/0x640
[  410.228992]  ? print_usage_bug+0xc0/0xc0
[  410.233054]  ? do_raw_spin_unlock+0xa7/0x330
[  410.237468]  ? zap_class+0x640/0x640
[  410.241211]  ? print_usage_bug+0xc0/0xc0
[  410.245273]  ? wq_watchdog_touch+0x9c/0xfe
[  410.249516]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.255074]  ? check_preemption_disabled+0x48/0x280
[  410.260101]  ? __lock_is_held+0xb5/0x140
[  410.264189]  __alloc_pages_nodemask+0xad8/0xea0
[  410.268893]  ? zap_class+0x640/0x640
[  410.272619]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  410.277646]  ? find_held_lock+0x36/0x1c0
[  410.281723]  ? ____cache_alloc_node+0x1c7/0x1e0
[  410.286397]  ? lock_downgrade+0x900/0x900
[  410.290555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.296100]  cache_grow_begin+0xa5/0x8c0
[  410.300189]  ? do_raw_spin_unlock+0xa7/0x330
[  410.304606]  fallback_alloc+0x204/0x2e0
[  410.308590]  ____cache_alloc_node+0x1c7/0x1e0
[  410.313104]  kmem_cache_alloc_node+0xe3/0x730
[  410.317659]  ? ipv6_get_ifaddr+0x42e/0x620
[  410.321921]  __alloc_skb+0x119/0x770
[  410.325632]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  410.330915]  ? netdev_alloc_frag+0x1f0/0x1f0
[  410.335327]  ? lock_downgrade+0x900/0x900
[  410.339485]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.345026]  ? refcount_sub_and_test_checked+0x203/0x310
[  410.350480]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  410.355948]  ? addrconf_rs_timer+0x690/0x690
[  410.360386]  ndisc_alloc_skb+0x144/0x340
[  410.364472]  ndisc_send_rs+0x331/0x6e0
[  410.368369]  addrconf_rs_timer+0x314/0x690
[  410.372610]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.376855]  call_timer_fn+0x272/0x920
[  410.380745]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.384983]  ? process_timeout+0x40/0x40
[  410.389058]  ? mark_held_locks+0xc7/0x130
[  410.393211]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.397706]  ? _raw_spin_unlock_irq+0x27/0x80
[  410.402200]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.406439]  ? lockdep_hardirqs_on+0x296/0x5b0
[  410.411029]  ? trace_hardirqs_on+0xbd/0x310
[  410.415354]  ? kasan_check_read+0x11/0x20
[  410.419505]  ? __run_timers+0x7da/0xc70
[  410.423481]  ? trace_hardirqs_off_caller+0x310/0x310
[  410.428589]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.432828]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  410.437063]  __run_timers+0x7e5/0xc70
[  410.440880]  ? timer_fixup_init+0x70/0x70
[  410.445034]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  410.450055]  ? zap_class+0x640/0x640
[  410.453777]  ? print_usage_bug+0xc0/0xc0
[  410.457841]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  410.463040]  ? find_held_lock+0x36/0x1c0
[  410.467107]  ? zap_class+0x640/0x640
[  410.470837]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.476381]  ? check_preemption_disabled+0x48/0x280
[  410.481410]  ? __lock_is_held+0xb5/0x140
[  410.485479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.491015]  ? check_preemption_disabled+0x48/0x280
[  410.496039]  run_timer_softirq+0x52/0xb0
[  410.500124]  ? rcu_read_lock_sched_held+0x14f/0x180
[  410.505157]  __do_softirq+0x308/0xb7e
[  410.508975]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  410.513497]  ? lock_downgrade+0x900/0x900
[  410.517649]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  410.522761]  ? pvclock_read_flags+0x160/0x160
[  410.527263]  ? lapic_next_event+0x5a/0x90
[  410.531417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.536963]  ? kvm_clock_read+0x18/0x30
[  410.540945]  ? kvm_sched_clock_read+0x9/0x20
[  410.545370]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.550915]  ? check_preemption_disabled+0x48/0x280
[  410.555958]  irq_exit+0x17f/0x1c0
[  410.559414]  smp_apic_timer_interrupt+0x1cb/0x760
[  410.564272]  ? smp_reschedule_interrupt+0x109/0x650
[  410.569291]  ? smp_call_function_single_interrupt+0x650/0x650
[  410.575177]  ? interrupt_entry+0xb5/0xc0
[  410.579242]  ? trace_hardirqs_off_caller+0xbb/0x310
[  410.584257]  ? trace_hardirqs_off_caller+0xbb/0x310
[  410.589281]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.594127]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.599182]  ? trace_hardirqs_on_caller+0x310/0x310
[  410.604199]  ? task_prio+0x50/0x50
[  410.607742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.613287]  ? check_preemption_disabled+0x48/0x280
[  410.618311]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  410.623173]  apic_timer_interrupt+0xf/0x20
[  410.627403]  </IRQ>
[  410.629645] RIP: 0010:lock_acquire+0x268/0x520
[  410.634235] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  410.653159] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  410.660877] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  410.668199] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  410.675474] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  410.682745] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  410.690010] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  410.697318]  ? lruvec_lru_size+0x450/0x450
[  410.701556]  ? kasan_check_read+0x11/0x20
[  410.705710]  ? lock_release+0xa00/0xa00
[  410.709692]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  410.714635]  down_read_trylock+0xda/0x140
[  410.718790]  ? shrink_slab+0x207/0x8c0
[  410.722690]  ? downgrade_write+0x270/0x270
[  410.726953]  shrink_slab+0x207/0x8c0
[  410.730668]  ? shrink_active_list+0x1f00/0x1f00
[  410.735345]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  410.740972]  ? __lock_acquire+0x62f/0x4c20
[  410.745212]  ? percpu_ref_get_many+0x240/0x240
[  410.749813]  ? print_usage_bug+0xc0/0xc0
[  410.753885]  shrink_node+0x431/0x16b0
[  410.757689]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  410.762997]  ? shrink_node_memcg+0x18f0/0x18f0
[  410.767586]  ? kvm_clock_read+0x18/0x30
[  410.771591]  ? ktime_get+0x2c1/0x400
[  410.775309]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  410.779821]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  410.785372]  ? __cpuset_node_allowed+0x19b/0x660
[  410.790147]  ? mark_held_locks+0x130/0x130
[  410.794426]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  410.800178]  ? zap_class+0x640/0x640
[  410.803928]  do_try_to_free_pages+0x3e7/0x1290
[  410.808504]  ? zap_class+0x640/0x640
[  410.812244]  ? shrink_node+0x16b0/0x16b0
[  410.816316]  ? __lock_is_held+0xb5/0x140
[  410.820380]  try_to_free_pages+0x4d0/0xb90
[  410.824615]  ? do_try_to_free_pages+0x1290/0x1290
[  410.829488]  ? lock_acquire+0x1ed/0x520
[  410.833513]  ? set_page_refcounted+0x280/0x280
[  410.838102]  ? lock_release+0xa00/0xa00
[  410.842087]  ? _raw_spin_unlock_irq+0x60/0x80
[  410.846597]  ? psi_memstall_enter+0x240/0x2b0
[  410.851109]  ? psi_memstall_tick+0x230/0x230
[  410.855581]  __alloc_pages_slowpath+0xa48/0x2de0
[  410.860364]  ? warn_alloc+0x120/0x120
[  410.864170]  ? mark_held_locks+0x130/0x130
[  410.868409]  ? find_get_entry+0xaae/0x1120
[  410.872650]  ? filemap_map_pages+0x1a20/0x1a20
[  410.877251]  ? zap_class+0x640/0x640
[  410.880971]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  410.886510]  ? check_preemption_disabled+0x48/0x280
[  410.891569]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  410.897106]  ? should_fail+0x22d/0xd01
[  410.901023]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  410.906127]  ? zap_class+0x640/0x640
[  410.909876]  ? __lock_is_held+0xb5/0x140
[  410.913966]  ? mark_held_locks+0x130/0x130
[  410.918207]  ? lock_release+0xa00/0xa00
[  410.922184]  ? perf_trace_sched_process_exec+0x860/0x860
[  410.927653]  ? xa_load+0x2ba/0x460
[  410.931197]  ? lock_downgrade+0x900/0x900
[  410.935353]  ? __might_sleep+0x95/0x190
[  410.939350]  __alloc_pages_nodemask+0xad8/0xea0
[  410.944076]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  410.949271]  ? __page_cache_alloc+0x191/0x5c0
[  410.953784]  ? xa_load+0x2e1/0x460
[  410.957344]  ? xa_clear_mark+0x40/0x40
[  410.961236]  ? zap_class+0x640/0x640
[  410.964989]  ? zap_class+0x640/0x640
[  410.968704]  ? zap_class+0x640/0x640
[  410.972422]  ? __do_page_cache_readahead+0x663/0x810
[  410.977532]  ? find_held_lock+0x36/0x1c0
[  410.981603]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  410.987163]  alloc_pages_current+0x173/0x350
[  410.991583]  __page_cache_alloc+0x38c/0x5c0
[  410.995927]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.000861]  ? kasan_check_read+0x11/0x20
[  411.005008]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.010287]  ? generic_perform_write+0x6a0/0x6a0
[  411.015048]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.020589]  ? check_preemption_disabled+0x48/0x280
[  411.025612]  filemap_fault+0x1595/0x25f0
[  411.029685]  ? __lock_page_or_retry+0xa00/0xa00
[  411.034356]  ? mark_held_locks+0x130/0x130
[  411.038601]  ? filemap_map_pages+0xd6b/0x1a20
[  411.043098]  ? lock_downgrade+0x900/0x900
[  411.047244]  ? check_preemption_disabled+0x48/0x280
[  411.052266]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.057204]  ? kasan_check_read+0x11/0x20
[  411.061353]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.066634]  ? rcu_softirq_qs+0x20/0x20
[  411.070623]  ? filemap_map_pages+0xd92/0x1a20
[  411.075133]  ? find_get_entries_tag+0x1400/0x1400
[  411.080509]  ? debug_object_destroy+0x2b0/0x2b0
[  411.085185]  ? lock_pi_update_atomic+0x150/0x150
[  411.089945]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.095497]  ? lock_acquire+0x1ed/0x520
[  411.099474]  ? ext4_filemap_fault+0x7a/0xad
[  411.103814]  ? lock_release+0xa00/0xa00
[  411.107794]  ? perf_trace_sched_process_exec+0x860/0x860
[  411.113249]  ? print_usage_bug+0xc0/0xc0
[  411.117326]  ? print_usage_bug+0xc0/0xc0
[  411.121443]  ? down_read+0x8d/0x120
[  411.125098]  ? ext4_filemap_fault+0x7a/0xad
[  411.129421]  ? __down_interruptible+0x700/0x700
[  411.134102]  ext4_filemap_fault+0x82/0xad
[  411.138265]  __do_fault+0x100/0x6b0
[  411.141898]  ? find_held_lock+0x36/0x1c0
[  411.145976]  ? pmd_devmap_trans_unstable+0x220/0x220
[  411.151084]  ? mark_held_locks+0x130/0x130
[  411.155321]  ? mark_held_locks+0x130/0x130
[  411.159573]  ? kasan_check_read+0x11/0x20
[  411.163755]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.169300]  __handle_mm_fault+0x3ea0/0x5be0
[  411.173710]  ? perf_trace_lock+0x7a0/0x7a0
[  411.177972]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  411.182823]  ? __switch_to_asm+0x34/0x70
[  411.186885]  ? __switch_to_asm+0x34/0x70
[  411.190968]  ? zap_class+0x640/0x640
[  411.194681]  ? zap_class+0x640/0x640
[  411.198398]  ? __x64_sys_futex+0x53e/0x6a0
[  411.202650]  ? find_held_lock+0x36/0x1c0
[  411.206724]  ? handle_mm_fault+0x42a/0xc70
[  411.210966]  ? lock_downgrade+0x900/0x900
[  411.215116]  ? check_preemption_disabled+0x48/0x280
[  411.220157]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  411.225096]  ? kasan_check_read+0x11/0x20
[  411.229249]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.234527]  ? rcu_softirq_qs+0x20/0x20
[  411.238509]  ? trace_hardirqs_off_caller+0x310/0x310
[  411.243619]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.249171]  ? sync_mm_rss+0x9a/0x1c0
[  411.252981]  handle_mm_fault+0x54f/0xc70
[  411.257052]  ? __handle_mm_fault+0x5be0/0x5be0
[  411.261645]  ? find_vma+0x34/0x190
[  411.265194]  __do_page_fault+0x5e8/0xe60
[  411.269259]  ? trace_hardirqs_off+0xb8/0x310
[  411.273690]  do_page_fault+0xf2/0x7e0
[  411.277504]  ? vmalloc_sync_all+0x30/0x30
[  411.281655]  ? error_entry+0x70/0xd0
[  411.285375]  ? trace_hardirqs_off_caller+0xbb/0x310
[  411.290392]  ? trace_hardirqs_on_caller+0xc0/0x310
[  411.295328]  ? syscall_return_slowpath+0x5e0/0x5e0
[  411.300261]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.305107]  ? trace_hardirqs_on_caller+0x310/0x310
[  411.310163]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  411.315624]  ? prepare_exit_to_usermode+0x291/0x3b0
[  411.320672]  ? page_fault+0x8/0x30
[  411.324232]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  411.329078]  ? page_fault+0x8/0x30
[  411.332623]  page_fault+0x1e/0x30
[  411.336082] RIP: 0033:0x45ddf3
[  411.339289] Code: Bad RIP value.
[  411.342650] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  411.348014] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  411.355286] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  411.362554] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  411.369826] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  411.377101] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  411.384404] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  411.384419] warn_alloc_show_mem: 1 callbacks suppressed
[  411.384424] Mem-Info:
[  411.384466] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  411.384466]  active_file:17 inactive_file:17 isolated_file:0
[  411.384466]  unevictable:0 dirty:4 writeback:0 unstable:0
[  411.384466]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  411.384466]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  411.384466]  free:13550 free_pcp:124 free_cma:0
[  411.391728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  411.397095] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  411.399491] Call Trace:
[  411.432547] 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
[  411.441902]  <IRQ>
[  411.469665] lowmem_reserve[]: 0 2818 6321 6321
[  411.472268]  dump_stack+0x244/0x39d
[  411.498363] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  411.500531]  ? dump_stack_print_info.cold.1+0x20/0x20
[  411.505111] lowmem_reserve[]: 0 0 3503 3503
[  411.508751]  warn_alloc.cold.116+0xb7/0x1bd
[  411.536080] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  411.541304]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  411.545598] lowmem_reserve[]: 0 0 0 0
[  411.549914]  ? lock_downgrade+0x900/0x900
[  411.578814] 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
[  411.583676]  ? trace_hardirqs_off+0xb8/0x310
[  411.587439] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  411.591598]  ? trace_hardirqs_off+0xb8/0x310
[  411.605108] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  411.609535]  __alloc_pages_slowpath+0x2651/0x2de0
[  411.624257] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  411.628687]  ? warn_alloc+0x120/0x120
[  411.643386] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  411.648232]  ? print_usage_bug+0xc0/0xc0
[  411.657035] 1360 total pagecache pages
[  411.660833]  ? warn_alloc+0x120/0x120
[  411.669402] 0 pages in swap cache
[  411.673474]  ? warn_alloc+0x120/0x120
[  411.677334] Swap cache stats: add 0, delete 0, find 0/0
[  411.681132]  ? print_usage_bug+0xc0/0xc0
[  411.684563] Free swap  = 0kB
[  411.688367]  ? kvm_clock_read+0x18/0x30
[  411.693704] Total swap = 0kB
[  411.697769]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  411.700760] 1965979 pages RAM
[  411.704739]  ? print_usage_bug+0xc0/0xc0
[  411.707735] 0 pages HighMem/MovableOnly
[  411.712745]  ? __lock_acquire+0x62f/0x4c20
[  411.715835] 342854 pages reserved
[  411.719892]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  411.723851] 0 pages cma reserved
[  411.728095]  ? should_fail+0x22d/0xd01
[  411.731596] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  411.737081]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.737100]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.740524] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  411.744330]  ? __lock_acquire+0x62f/0x4c20
[  411.750811] syz-fuzzer cpuset=/ mems_allowed=0
[  411.756085]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  411.785276]  ? __lock_acquire+0x62f/0x4c20
[  411.789517]  ? should_fail+0x22d/0xd01
[  411.793403]  ? rcu_irq_exit+0x1a2/0x390
[  411.797395]  ? mark_held_locks+0x130/0x130
[  411.801640]  ? mark_held_locks+0x130/0x130
[  411.805884]  ? mark_held_locks+0xc7/0x130
[  411.810035]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  411.815053]  ? zap_class+0x640/0x640
[  411.818788]  ? print_usage_bug+0xc0/0xc0
[  411.822873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.828432]  ? check_preemption_disabled+0x48/0x280
[  411.833464]  ? __lock_is_held+0xb5/0x140
[  411.837548]  __alloc_pages_nodemask+0xad8/0xea0
[  411.842223]  ? zap_class+0x640/0x640
[  411.845948]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  411.850976]  ? find_held_lock+0x36/0x1c0
[  411.855050]  ? ____cache_alloc_node+0x1c7/0x1e0
[  411.859725]  ? lock_downgrade+0x900/0x900
[  411.863896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.869459]  cache_grow_begin+0xa5/0x8c0
[  411.873524]  ? do_raw_spin_unlock+0xa7/0x330
[  411.877940]  fallback_alloc+0x204/0x2e0
[  411.881925]  ____cache_alloc_node+0x1c7/0x1e0
[  411.886434]  kmem_cache_alloc_node+0xe3/0x730
[  411.890955]  ? ipv6_get_ifaddr+0x42e/0x620
[  411.895203]  __alloc_skb+0x119/0x770
[  411.898920]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  411.904203]  ? netdev_alloc_frag+0x1f0/0x1f0
[  411.908614]  ? lock_downgrade+0x900/0x900
[  411.912770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  411.918313]  ? refcount_sub_and_test_checked+0x203/0x310
[  411.923780]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  411.929239]  ? addrconf_rs_timer+0x690/0x690
[  411.933664]  ndisc_alloc_skb+0x144/0x340
[  411.937745]  ndisc_send_rs+0x331/0x6e0
[  411.941642]  addrconf_rs_timer+0x314/0x690
[  411.945889]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.950147]  call_timer_fn+0x272/0x920
[  411.954038]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.958273]  ? process_timeout+0x40/0x40
[  411.962345]  ? __run_timers+0x7da/0xc70
[  411.966324]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.970818]  ? _raw_spin_unlock_irq+0x27/0x80
[  411.975312]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  411.979560]  ? lockdep_hardirqs_on+0x296/0x5b0
[  411.984161]  ? trace_hardirqs_on+0xbd/0x310
[  411.988488]  ? kasan_check_read+0x11/0x20
[  411.992638]  ? __run_timers+0x7da/0xc70
[  411.996613]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.001727]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.005968]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.010225]  __run_timers+0x7e5/0xc70
[  412.014037]  ? timer_fixup_init+0x70/0x70
[  412.018206]  ? kasan_check_read+0x11/0x20
[  412.022357]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.027643]  ? rcu_softirq_qs+0x20/0x20
[  412.031632]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.037175]  ? check_preemption_disabled+0x48/0x280
[  412.042213]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  412.046975]  ? retint_kernel+0x2d/0x2d
[  412.050883]  ? trace_hardirqs_on_caller+0xc0/0x310
[  412.055816]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  412.060577]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  412.066047]  ? zap_class+0x640/0x640
[  412.069786]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.075328]  ? check_preemption_disabled+0x48/0x280
[  412.080356]  ? __lock_is_held+0xb5/0x140
[  412.084431]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.089975]  ? check_preemption_disabled+0x48/0x280
[  412.094998]  run_timer_softirq+0x52/0xb0
[  412.099063]  ? rcu_read_lock_sched_held+0x14f/0x180
[  412.104085]  __do_softirq+0x308/0xb7e
[  412.107895]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  412.112395]  ? lock_downgrade+0x900/0x900
[  412.116565]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  412.121677]  ? pvclock_read_flags+0x160/0x160
[  412.126181]  ? lapic_next_event+0x5a/0x90
[  412.130339]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.135886]  ? kvm_clock_read+0x18/0x30
[  412.139885]  ? kvm_sched_clock_read+0x9/0x20
[  412.144313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.149854]  ? check_preemption_disabled+0x48/0x280
[  412.154882]  irq_exit+0x17f/0x1c0
[  412.158340]  smp_apic_timer_interrupt+0x1cb/0x760
[  412.163191]  ? smp_reschedule_interrupt+0x109/0x650
[  412.168227]  ? smp_call_function_single_interrupt+0x650/0x650
[  412.174129]  ? interrupt_entry+0xb5/0xc0
[  412.178204]  ? trace_hardirqs_off_caller+0xbb/0x310
[  412.183219]  ? trace_hardirqs_off_caller+0xbb/0x310
[  412.188257]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.193100]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.198114]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.203147]  ? task_prio+0x50/0x50
[  412.206693]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.212239]  ? check_preemption_disabled+0x48/0x280
[  412.217270]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.222164]  apic_timer_interrupt+0xf/0x20
[  412.226403]  </IRQ>
[  412.228654] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  412.233585] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  412.252490] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  412.260204] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  412.267471] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  412.274754] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  412.282020] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  412.289288] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  412.296605]  skb_clone+0x1bb/0x500
[  412.300157]  ? skb_split+0x11e0/0x11e0
[  412.304067]  ? preempt_notifier_register+0x200/0x200
[  412.309185]  ? __switch_to_asm+0x34/0x70
[  412.313259]  ? __switch_to_asm+0x34/0x70
[  412.317317]  ? __switch_to_asm+0x40/0x70
[  412.321379]  ? __switch_to_asm+0x34/0x70
[  412.325447]  ? __switch_to_asm+0x40/0x70
[  412.329527]  ? __switch_to_asm+0x40/0x70
[  412.333590]  ? __switch_to_asm+0x34/0x70
[  412.337654]  ? __switch_to_asm+0x34/0x70
[  412.341728]  ? __switch_to_asm+0x40/0x70
[  412.345787]  ? __switch_to_asm+0x34/0x70
[  412.349851]  bpf_clone_redirect+0xb9/0x490
[  412.354096]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  412.359134]  ? __sched_text_start+0x8/0x8
[  412.363338]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  412.368117]  ? find_held_lock+0x36/0x1c0
[  412.372203]  ? lock_acquire+0x1ed/0x520
[  412.376200]  ? bpf_test_run+0x3ee/0x7a0
[  412.380181]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.385725]  ? check_preemption_disabled+0x48/0x280
[  412.390768]  ? kasan_check_read+0x11/0x20
[  412.394930]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.400206]  ? rcu_softirq_qs+0x20/0x20
[  412.404191]  ? preempt_schedule+0x4d/0x60
[  412.408344]  ? ___preempt_schedule+0x16/0x18
[  412.412763]  ? bpf_test_run+0x271/0x7a0
[  412.416769]  ? netlink_diag_dump+0x2a0/0x2a0
[  412.421182]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.426723]  ? bpf_test_init.isra.10+0x70/0x100
[  412.431401]  ? bpf_prog_test_run_skb+0x762/0xd60
[  412.436179]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  412.441038]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  412.446577]  ? fput+0x130/0x1a0
[  412.449862]  ? __bpf_prog_get+0x9b/0x290
[  412.453932]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  412.458897]  ? bpf_prog_test_run+0x130/0x1a0
[  412.463325]  ? __x64_sys_bpf+0x3d8/0x520
[  412.467392]  ? bpf_prog_get+0x20/0x20
[  412.471233]  ? do_syscall_64+0x1b9/0x820
[  412.475296]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  412.480662]  ? syscall_return_slowpath+0x5e0/0x5e0
[  412.485592]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.490446]  ? trace_hardirqs_on_caller+0x310/0x310
[  412.495469]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  412.500506]  ? prepare_exit_to_usermode+0x291/0x3b0
[  412.505531]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  412.510388]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  412.515792] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  412.515894] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  412.522726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  412.522732] Call Trace:
[  412.522740]  <IRQ>
[  412.522759]  dump_stack+0x244/0x39d
[  412.522777]  ? dump_stack_print_info.cold.1+0x20/0x20
[  412.529317] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  412.538618]  warn_alloc.cold.116+0xb7/0x1bd
[  412.541177] syz-executor4 cpuset=syz4 mems_allowed=0
[  412.543323]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  412.576862]  ? lock_downgrade+0x900/0x900
[  412.581027]  ? trace_hardirqs_off+0xb8/0x310
[  412.585447]  ? trace_hardirqs_off+0xb8/0x310
[  412.589870]  __alloc_pages_slowpath+0x2651/0x2de0
[  412.594747]  ? warn_alloc+0x120/0x120
[  412.598557]  ? print_usage_bug+0xc0/0xc0
[  412.602623]  ? warn_alloc+0x120/0x120
[  412.606471]  ? warn_alloc+0x120/0x120
[  412.610277]  ? print_usage_bug+0xc0/0xc0
[  412.614352]  ? print_usage_bug+0xc0/0xc0
[  412.618416]  ? __lock_acquire+0x62f/0x4c20
[  412.622661]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.628208]  ? should_fail+0x22d/0xd01
[  412.632103]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.637211]  ? __lock_acquire+0x62f/0x4c20
[  412.641483]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  412.646604]  ? __lock_acquire+0x62f/0x4c20
[  412.650844]  ? should_fail+0x22d/0xd01
[  412.654739]  ? find_held_lock+0x36/0x1c0
[  412.658816]  ? mark_held_locks+0x130/0x130
[  412.663057]  ? mark_held_locks+0x130/0x130
[  412.667291]  ? zap_class+0x640/0x640
[  412.671008]  ? zap_class+0x640/0x640
[  412.674743]  ? print_usage_bug+0xc0/0xc0
[  412.678804]  ? do_raw_spin_unlock+0xa7/0x330
[  412.683213]  ? zap_class+0x640/0x640
[  412.686932]  ? print_usage_bug+0xc0/0xc0
[  412.690996]  ? wq_watchdog_touch+0x9c/0xfe
[  412.695245]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.700801]  ? check_preemption_disabled+0x48/0x280
[  412.705839]  ? __lock_is_held+0xb5/0x140
[  412.709916]  __alloc_pages_nodemask+0xad8/0xea0
[  412.714589]  ? zap_class+0x640/0x640
[  412.718317]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  412.723350]  ? find_held_lock+0x36/0x1c0
[  412.727425]  ? ____cache_alloc_node+0x1c7/0x1e0
[  412.732100]  ? lock_downgrade+0x900/0x900
[  412.736264]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.741824]  cache_grow_begin+0xa5/0x8c0
[  412.745905]  ? do_raw_spin_unlock+0xa7/0x330
[  412.750342]  fallback_alloc+0x204/0x2e0
[  412.754344]  ____cache_alloc_node+0x1c7/0x1e0
[  412.758849]  kmem_cache_alloc_node+0xe3/0x730
[  412.763352]  ? ipv6_get_ifaddr+0x42e/0x620
[  412.767603]  __alloc_skb+0x119/0x770
[  412.771320]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  412.776603]  ? netdev_alloc_frag+0x1f0/0x1f0
[  412.781014]  ? lock_downgrade+0x900/0x900
[  412.785181]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.790720]  ? refcount_sub_and_test_checked+0x203/0x310
[  412.796176]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  412.801646]  ? addrconf_rs_timer+0x690/0x690
[  412.806073]  ndisc_alloc_skb+0x144/0x340
[  412.810155]  ndisc_send_rs+0x331/0x6e0
[  412.814051]  addrconf_rs_timer+0x314/0x690
[  412.818299]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.822576]  call_timer_fn+0x272/0x920
[  412.826479]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.830715]  ? process_timeout+0x40/0x40
[  412.834788]  ? mark_held_locks+0xc7/0x130
[  412.838949]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.843442]  ? _raw_spin_unlock_irq+0x27/0x80
[  412.847960]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.852197]  ? lockdep_hardirqs_on+0x296/0x5b0
[  412.856782]  ? trace_hardirqs_on+0xbd/0x310
[  412.861104]  ? kasan_check_read+0x11/0x20
[  412.865260]  ? __run_timers+0x7da/0xc70
[  412.869238]  ? trace_hardirqs_off_caller+0x310/0x310
[  412.874353]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.878598]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  412.882842]  __run_timers+0x7e5/0xc70
[  412.886657]  ? timer_fixup_init+0x70/0x70
[  412.890808]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  412.895837]  ? zap_class+0x640/0x640
[  412.899564]  ? print_usage_bug+0xc0/0xc0
[  412.903640]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  412.908835]  ? find_held_lock+0x36/0x1c0
[  412.912901]  ? zap_class+0x640/0x640
[  412.916629]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.922176]  ? check_preemption_disabled+0x48/0x280
[  412.927208]  ? __lock_is_held+0xb5/0x140
[  412.931272]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.936817]  ? check_preemption_disabled+0x48/0x280
[  412.941853]  run_timer_softirq+0x52/0xb0
[  412.945941]  ? rcu_read_lock_sched_held+0x14f/0x180
[  412.951190]  __do_softirq+0x308/0xb7e
[  412.955005]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  412.959506]  ? lock_downgrade+0x900/0x900
[  412.963664]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  412.968780]  ? pvclock_read_flags+0x160/0x160
[  412.973298]  ? lapic_next_event+0x5a/0x90
[  412.977451]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  412.983009]  ? kvm_clock_read+0x18/0x30
[  412.987016]  ? kvm_sched_clock_read+0x9/0x20
[  412.991430]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  412.996976]  ? check_preemption_disabled+0x48/0x280
[  413.002002]  irq_exit+0x17f/0x1c0
[  413.005462]  smp_apic_timer_interrupt+0x1cb/0x760
[  413.010304]  ? smp_reschedule_interrupt+0x109/0x650
[  413.015326]  ? smp_call_function_single_interrupt+0x650/0x650
[  413.021213]  ? interrupt_entry+0xb5/0xc0
[  413.025278]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.030295]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.035324]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.040202]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.045219]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.050258]  ? task_prio+0x50/0x50
[  413.053802]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.059348]  ? check_preemption_disabled+0x48/0x280
[  413.064375]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.069236]  apic_timer_interrupt+0xf/0x20
[  413.073482]  </IRQ>
[  413.075748] RIP: 0010:lock_acquire+0x268/0x520
[  413.080865] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  413.099782] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  413.107511] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  413.114801] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  413.122085] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  413.129372] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  413.136655] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  413.143967]  ? lruvec_lru_size+0x450/0x450
[  413.148214]  ? kasan_check_read+0x11/0x20
[  413.152373]  ? lock_release+0xa00/0xa00
[  413.156358]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  413.161300]  down_read_trylock+0xda/0x140
[  413.165449]  ? shrink_slab+0x207/0x8c0
[  413.169341]  ? downgrade_write+0x270/0x270
[  413.173592]  shrink_slab+0x207/0x8c0
[  413.177310]  ? shrink_active_list+0x1f00/0x1f00
[  413.181995]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  413.187627]  ? __lock_acquire+0x62f/0x4c20
[  413.191896]  ? percpu_ref_get_many+0x240/0x240
[  413.196505]  ? print_usage_bug+0xc0/0xc0
[  413.200580]  shrink_node+0x431/0x16b0
[  413.204385]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  413.209696]  ? shrink_node_memcg+0x18f0/0x18f0
[  413.214286]  ? kvm_clock_read+0x18/0x30
[  413.218269]  ? ktime_get+0x2c1/0x400
[  413.222003]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  413.226505]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  413.232047]  ? __cpuset_node_allowed+0x19b/0x660
[  413.236807]  ? mark_held_locks+0x130/0x130
[  413.241048]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  413.246766]  ? zap_class+0x640/0x640
[  413.250495]  do_try_to_free_pages+0x3e7/0x1290
[  413.255078]  ? zap_class+0x640/0x640
[  413.258813]  ? shrink_node+0x16b0/0x16b0
[  413.262878]  ? __lock_is_held+0xb5/0x140
[  413.266964]  try_to_free_pages+0x4d0/0xb90
[  413.271212]  ? do_try_to_free_pages+0x1290/0x1290
[  413.276084]  ? lock_acquire+0x1ed/0x520
[  413.280060]  ? set_page_refcounted+0x280/0x280
[  413.284650]  ? lock_release+0xa00/0xa00
[  413.288630]  ? _raw_spin_unlock_irq+0x60/0x80
[  413.293127]  ? psi_memstall_enter+0x240/0x2b0
[  413.297638]  ? psi_memstall_tick+0x230/0x230
[  413.302063]  __alloc_pages_slowpath+0xa48/0x2de0
[  413.306852]  ? warn_alloc+0x120/0x120
[  413.310657]  ? mark_held_locks+0x130/0x130
[  413.314903]  ? find_get_entry+0xaae/0x1120
[  413.319162]  ? filemap_map_pages+0x1a20/0x1a20
[  413.323756]  ? zap_class+0x640/0x640
[  413.327479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.333021]  ? check_preemption_disabled+0x48/0x280
[  413.338043]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.343698]  ? should_fail+0x22d/0xd01
[  413.347606]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  413.352717]  ? zap_class+0x640/0x640
[  413.356458]  ? __lock_is_held+0xb5/0x140
[  413.360528]  ? mark_held_locks+0x130/0x130
[  413.364765]  ? lock_release+0xa00/0xa00
[  413.368741]  ? perf_trace_sched_process_exec+0x860/0x860
[  413.374197]  ? xa_load+0x2ba/0x460
[  413.377756]  ? lock_downgrade+0x900/0x900
[  413.381930]  ? __might_sleep+0x95/0x190
[  413.385933]  __alloc_pages_nodemask+0xad8/0xea0
[  413.390620]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  413.395640]  ? __page_cache_alloc+0x191/0x5c0
[  413.400155]  ? xa_load+0x2e1/0x460
[  413.403699]  ? xa_clear_mark+0x40/0x40
[  413.407595]  ? zap_class+0x640/0x640
[  413.411320]  ? zap_class+0x640/0x640
[  413.415032]  ? zap_class+0x640/0x640
[  413.418749]  ? __do_page_cache_readahead+0x663/0x810
[  413.423858]  ? find_held_lock+0x36/0x1c0
[  413.427932]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  413.433480]  alloc_pages_current+0x173/0x350
[  413.437901]  __page_cache_alloc+0x38c/0x5c0
[  413.442240]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.447179]  ? kasan_check_read+0x11/0x20
[  413.451327]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.456611]  ? generic_perform_write+0x6a0/0x6a0
[  413.461378]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.466929]  ? check_preemption_disabled+0x48/0x280
[  413.471968]  filemap_fault+0x1595/0x25f0
[  413.476045]  ? __lock_page_or_retry+0xa00/0xa00
[  413.480719]  ? mark_held_locks+0x130/0x130
[  413.484969]  ? filemap_map_pages+0xd6b/0x1a20
[  413.489472]  ? lock_downgrade+0x900/0x900
[  413.493624]  ? check_preemption_disabled+0x48/0x280
[  413.498649]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.503585]  ? kasan_check_read+0x11/0x20
[  413.507752]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.513064]  ? rcu_softirq_qs+0x20/0x20
[  413.517053]  ? filemap_map_pages+0xd92/0x1a20
[  413.521587]  ? find_get_entries_tag+0x1400/0x1400
[  413.526454]  ? debug_object_destroy+0x2b0/0x2b0
[  413.531154]  ? lock_pi_update_atomic+0x150/0x150
[  413.535935]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.541495]  ? lock_acquire+0x1ed/0x520
[  413.545490]  ? ext4_filemap_fault+0x7a/0xad
[  413.549820]  ? lock_release+0xa00/0xa00
[  413.553793]  ? perf_trace_sched_process_exec+0x860/0x860
[  413.559247]  ? print_usage_bug+0xc0/0xc0
[  413.563311]  ? print_usage_bug+0xc0/0xc0
[  413.567386]  ? down_read+0x8d/0x120
[  413.571030]  ? ext4_filemap_fault+0x7a/0xad
[  413.575356]  ? __down_interruptible+0x700/0x700
[  413.580038]  ext4_filemap_fault+0x82/0xad
[  413.584191]  __do_fault+0x100/0x6b0
[  413.587821]  ? find_held_lock+0x36/0x1c0
[  413.591891]  ? pmd_devmap_trans_unstable+0x220/0x220
[  413.597004]  ? mark_held_locks+0x130/0x130
[  413.601258]  ? mark_held_locks+0x130/0x130
[  413.605505]  ? kasan_check_read+0x11/0x20
[  413.609658]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  413.615205]  __handle_mm_fault+0x3ea0/0x5be0
[  413.619621]  ? perf_trace_lock+0x7a0/0x7a0
[  413.623881]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  413.628737]  ? __switch_to_asm+0x34/0x70
[  413.632799]  ? __switch_to_asm+0x34/0x70
[  413.636875]  ? zap_class+0x640/0x640
[  413.640603]  ? zap_class+0x640/0x640
[  413.644318]  ? __x64_sys_futex+0x53e/0x6a0
[  413.648559]  ? find_held_lock+0x36/0x1c0
[  413.652633]  ? handle_mm_fault+0x42a/0xc70
[  413.656874]  ? lock_downgrade+0x900/0x900
[  413.661032]  ? check_preemption_disabled+0x48/0x280
[  413.666064]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  413.671003]  ? kasan_check_read+0x11/0x20
[  413.675162]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  413.680441]  ? rcu_softirq_qs+0x20/0x20
[  413.684416]  ? trace_hardirqs_off_caller+0x310/0x310
[  413.689541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  413.695083]  ? sync_mm_rss+0x9a/0x1c0
[  413.698894]  handle_mm_fault+0x54f/0xc70
[  413.702968]  ? __handle_mm_fault+0x5be0/0x5be0
[  413.707555]  ? find_vma+0x34/0x190
[  413.711103]  __do_page_fault+0x5e8/0xe60
[  413.715171]  ? trace_hardirqs_off+0xb8/0x310
[  413.719590]  do_page_fault+0xf2/0x7e0
[  413.723396]  ? vmalloc_sync_all+0x30/0x30
[  413.727560]  ? error_entry+0x70/0xd0
[  413.731279]  ? trace_hardirqs_off_caller+0xbb/0x310
[  413.736295]  ? trace_hardirqs_on_caller+0xc0/0x310
[  413.741228]  ? syscall_return_slowpath+0x5e0/0x5e0
[  413.746165]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.751017]  ? trace_hardirqs_on_caller+0x310/0x310
[  413.756035]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  413.761541]  ? prepare_exit_to_usermode+0x291/0x3b0
[  413.766561]  ? page_fault+0x8/0x30
[  413.770106]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  413.774964]  ? page_fault+0x8/0x30
[  413.778507]  page_fault+0x1e/0x30
[  413.781965] RIP: 0033:0x45ddf3
[  413.785179] Code: Bad RIP value.
[  413.788556] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  413.793922] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  413.801193] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  413.808461] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  413.815730] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  413.822997] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  413.830295] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  413.830300] warn_alloc_show_mem: 1 callbacks suppressed
[  413.830307] Mem-Info:
[  413.837592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  413.842961] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  413.842961]  active_file:17 inactive_file:17 isolated_file:0
[  413.842961]  unevictable:0 dirty:4 writeback:0 unstable:0
[  413.842961]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  413.842961]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  413.842961]  free:13550 free_pcp:124 free_cma:0
[  413.845331] Call Trace:
[  413.854721] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  413.887758]  <IRQ>
[  413.890334] 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
[  413.918118]  dump_stack+0x244/0x39d
[  413.920254] lowmem_reserve[]: 0 2818 6321 6321
[  413.946391]  ? dump_stack_print_info.cold.1+0x20/0x20
[  413.949996] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  413.954585]  warn_alloc.cold.116+0xb7/0x1bd
[  413.959740] lowmem_reserve[]: 0 0 3503 3503
[  413.987102]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  413.991400] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  413.995728]  ? lock_downgrade+0x900/0x900
[  414.000537] lowmem_reserve[]: 0 0 0 0
[  414.029456]  ? trace_hardirqs_off+0xb8/0x310
[  414.033578] 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
[  414.037380]  ? trace_hardirqs_off+0xb8/0x310
[  414.041769] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  414.055310]  __alloc_pages_slowpath+0x2651/0x2de0
[  414.059688] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  414.074464]  ? warn_alloc+0x120/0x120
[  414.079261] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  414.094001]  ? print_usage_bug+0xc0/0xc0
[  414.097790] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  414.106618]  ? warn_alloc+0x120/0x120
[  414.110669] 1360 total pagecache pages
[  414.119236]  ? warn_alloc+0x120/0x120
[  414.123019] 0 pages in swap cache
[  414.126893]  ? print_usage_bug+0xc0/0xc0
[  414.130673] Swap cache stats: add 0, delete 0, find 0/0
[  414.134134]  ? print_usage_bug+0xc0/0xc0
[  414.138182] Free swap  = 0kB
[  414.143538]  ? __lock_acquire+0x62f/0x4c20
[  414.147603] Total swap = 0kB
[  414.150620]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.154832] 1965979 pages RAM
[  414.157849]  ? should_fail+0x22d/0xd01
[  414.163365] 0 pages HighMem/MovableOnly
[  414.166468]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.170337] 342854 pages reserved
[  414.174309]  ? __lock_acquire+0x62f/0x4c20
[  414.179386] 0 pages cma reserved
[  414.182843]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  414.187125] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  414.190407]  ? __lock_acquire+0x62f/0x4c20
[  414.195675] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  414.201997]  ? should_fail+0x22d/0xd01
[  414.206206] syz-fuzzer cpuset=/ mems_allowed=0
[  414.216437]  ? find_held_lock+0x36/0x1c0
[  414.228933]  ? mark_held_locks+0x130/0x130
[  414.233183]  ? mark_held_locks+0x130/0x130
[  414.237425]  ? zap_class+0x640/0x640
[  414.241162]  ? zap_class+0x640/0x640
[  414.244913]  ? print_usage_bug+0xc0/0xc0
[  414.248980]  ? do_raw_spin_unlock+0xa7/0x330
[  414.253395]  ? zap_class+0x640/0x640
[  414.257118]  ? print_usage_bug+0xc0/0xc0
[  414.261197]  ? wq_watchdog_touch+0x9c/0xfe
[  414.265445]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.270990]  ? check_preemption_disabled+0x48/0x280
[  414.276034]  ? __lock_is_held+0xb5/0x140
[  414.280114]  __alloc_pages_nodemask+0xad8/0xea0
[  414.284793]  ? zap_class+0x640/0x640
[  414.288517]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  414.293546]  ? find_held_lock+0x36/0x1c0
[  414.297620]  ? ____cache_alloc_node+0x1c7/0x1e0
[  414.302290]  ? lock_downgrade+0x900/0x900
[  414.306469]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.312015]  cache_grow_begin+0xa5/0x8c0
[  414.316093]  ? do_raw_spin_unlock+0xa7/0x330
[  414.320513]  fallback_alloc+0x204/0x2e0
[  414.324493]  ____cache_alloc_node+0x1c7/0x1e0
[  414.328996]  kmem_cache_alloc_node+0xe3/0x730
[  414.333500]  ? ipv6_get_ifaddr+0x42e/0x620
[  414.337749]  __alloc_skb+0x119/0x770
[  414.341466]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.346747]  ? netdev_alloc_frag+0x1f0/0x1f0
[  414.351201]  ? lock_downgrade+0x900/0x900
[  414.355382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.360930]  ? refcount_sub_and_test_checked+0x203/0x310
[  414.366386]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  414.371845]  ? addrconf_rs_timer+0x690/0x690
[  414.376269]  ndisc_alloc_skb+0x144/0x340
[  414.380340]  ndisc_send_rs+0x331/0x6e0
[  414.384239]  addrconf_rs_timer+0x314/0x690
[  414.388483]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.392734]  call_timer_fn+0x272/0x920
[  414.396637]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.400874]  ? process_timeout+0x40/0x40
[  414.404962]  ? __run_timers+0x7da/0xc70
[  414.408939]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.413454]  ? _raw_spin_unlock_irq+0x27/0x80
[  414.417959]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.422197]  ? lockdep_hardirqs_on+0x296/0x5b0
[  414.426792]  ? trace_hardirqs_on+0xbd/0x310
[  414.431124]  ? kasan_check_read+0x11/0x20
[  414.435292]  ? __run_timers+0x7da/0xc70
[  414.439283]  ? trace_hardirqs_off_caller+0x310/0x310
[  414.444404]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.448652]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  414.452905]  __run_timers+0x7e5/0xc70
[  414.456716]  ? timer_fixup_init+0x70/0x70
[  414.460867]  ? kasan_check_read+0x11/0x20
[  414.465034]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.470310]  ? rcu_softirq_qs+0x20/0x20
[  414.474288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.479840]  ? check_preemption_disabled+0x48/0x280
[  414.484866]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  414.489644]  ? retint_kernel+0x2d/0x2d
[  414.493550]  ? trace_hardirqs_on_caller+0xc0/0x310
[  414.498484]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  414.503247]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  414.508713]  ? zap_class+0x640/0x640
[  414.512439]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.517983]  ? check_preemption_disabled+0x48/0x280
[  414.523012]  ? __lock_is_held+0xb5/0x140
[  414.527078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.532619]  ? check_preemption_disabled+0x48/0x280
[  414.537645]  run_timer_softirq+0x52/0xb0
[  414.541714]  ? rcu_read_lock_sched_held+0x14f/0x180
[  414.546737]  __do_softirq+0x308/0xb7e
[  414.550544]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  414.555040]  ? lock_downgrade+0x900/0x900
[  414.559194]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  414.564305]  ? pvclock_read_flags+0x160/0x160
[  414.568803]  ? lapic_next_event+0x5a/0x90
[  414.572990]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.578562]  ? kvm_clock_read+0x18/0x30
[  414.582537]  ? kvm_sched_clock_read+0x9/0x20
[  414.586955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.592517]  ? check_preemption_disabled+0x48/0x280
[  414.597551]  irq_exit+0x17f/0x1c0
[  414.601028]  smp_apic_timer_interrupt+0x1cb/0x760
[  414.605891]  ? smp_reschedule_interrupt+0x109/0x650
[  414.610914]  ? smp_call_function_single_interrupt+0x650/0x650
[  414.616805]  ? interrupt_entry+0xb5/0xc0
[  414.620871]  ? trace_hardirqs_off_caller+0xbb/0x310
[  414.625887]  ? trace_hardirqs_off_caller+0xbb/0x310
[  414.630926]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.635774]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.640805]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.645933]  ? task_prio+0x50/0x50
[  414.649490]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.655033]  ? check_preemption_disabled+0x48/0x280
[  414.660058]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.664928]  apic_timer_interrupt+0xf/0x20
[  414.669166]  </IRQ>
[  414.671427] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  414.676361] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  414.695275] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  414.702989] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  414.710259] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  414.717530] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  414.724800] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  414.732075] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  414.739391]  skb_clone+0x1bb/0x500
[  414.742944]  ? skb_split+0x11e0/0x11e0
[  414.746835]  ? preempt_notifier_register+0x200/0x200
[  414.751939]  ? __switch_to_asm+0x34/0x70
[  414.756001]  ? __switch_to_asm+0x34/0x70
[  414.760064]  ? __switch_to_asm+0x40/0x70
[  414.764123]  ? __switch_to_asm+0x34/0x70
[  414.768190]  ? __switch_to_asm+0x40/0x70
[  414.772255]  ? __switch_to_asm+0x40/0x70
[  414.776315]  ? __switch_to_asm+0x34/0x70
[  414.780376]  ? __switch_to_asm+0x34/0x70
[  414.784441]  ? __switch_to_asm+0x40/0x70
[  414.788513]  ? __switch_to_asm+0x34/0x70
[  414.792581]  bpf_clone_redirect+0xb9/0x490
[  414.796830]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  414.801855]  ? __sched_text_start+0x8/0x8
[  414.806013]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  414.810785]  ? find_held_lock+0x36/0x1c0
[  414.814865]  ? lock_acquire+0x1ed/0x520
[  414.818846]  ? bpf_test_run+0x3ee/0x7a0
[  414.822822]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  414.828363]  ? check_preemption_disabled+0x48/0x280
[  414.833393]  ? kasan_check_read+0x11/0x20
[  414.837548]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  414.842839]  ? rcu_softirq_qs+0x20/0x20
[  414.846827]  ? preempt_schedule+0x4d/0x60
[  414.850994]  ? ___preempt_schedule+0x16/0x18
[  414.855436]  ? bpf_test_run+0x271/0x7a0
[  414.859430]  ? netlink_diag_dump+0x2a0/0x2a0
[  414.863859]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  414.869454]  ? bpf_test_init.isra.10+0x70/0x100
[  414.874134]  ? bpf_prog_test_run_skb+0x762/0xd60
[  414.878908]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  414.883761]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  414.889328]  ? fput+0x130/0x1a0
[  414.892618]  ? __bpf_prog_get+0x9b/0x290
[  414.896700]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  414.901561]  ? bpf_prog_test_run+0x130/0x1a0
[  414.905978]  ? __x64_sys_bpf+0x3d8/0x520
[  414.910039]  ? bpf_prog_get+0x20/0x20
[  414.913866]  ? do_syscall_64+0x1b9/0x820
[  414.917960]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  414.923332]  ? syscall_return_slowpath+0x5e0/0x5e0
[  414.928264]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.933111]  ? trace_hardirqs_on_caller+0x310/0x310
[  414.938136]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  414.943173]  ? prepare_exit_to_usermode+0x291/0x3b0
[  414.948395]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  414.953269]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  414.958657] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  414.958743] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  414.965604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  414.965609] Call Trace:
[  414.965617]  <IRQ>
[  414.965635]  dump_stack+0x244/0x39d
[  414.965654]  ? dump_stack_print_info.cold.1+0x20/0x20
[  414.972296] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  414.981525]  warn_alloc.cold.116+0xb7/0x1bd
[  414.984084] syz-executor4 cpuset=syz4 mems_allowed=0
[  414.986232]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  415.019728]  ? lock_downgrade+0x900/0x900
[  415.023896]  ? trace_hardirqs_off+0xb8/0x310
[  415.028318]  ? trace_hardirqs_off+0xb8/0x310
[  415.032743]  __alloc_pages_slowpath+0x2651/0x2de0
[  415.037618]  ? warn_alloc+0x120/0x120
[  415.041446]  ? print_usage_bug+0xc0/0xc0
[  415.045525]  ? warn_alloc+0x120/0x120
[  415.049336]  ? warn_alloc+0x120/0x120
[  415.053153]  ? print_usage_bug+0xc0/0xc0
[  415.057221]  ? kvm_clock_read+0x18/0x30
[  415.061233]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  415.066256]  ? print_usage_bug+0xc0/0xc0
[  415.070320]  ? __lock_acquire+0x62f/0x4c20
[  415.074574]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.080602]  ? should_fail+0x22d/0xd01
[  415.084495]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  415.089608]  ? __lock_acquire+0x62f/0x4c20
[  415.093891]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  415.098999]  ? __lock_acquire+0x62f/0x4c20
[  415.103233]  ? should_fail+0x22d/0xd01
[  415.107135]  ? mark_held_locks+0x130/0x130
[  415.111384]  ? mark_held_locks+0x130/0x130
[  415.115630]  ? zap_class+0x640/0x640
[  415.119346]  ? print_usage_bug+0xc0/0xc0
[  415.123461]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.129008]  ? check_preemption_disabled+0x48/0x280
[  415.134040]  ? __lock_is_held+0xb5/0x140
[  415.138110]  __alloc_pages_nodemask+0xad8/0xea0
[  415.142807]  ? zap_class+0x640/0x640
[  415.146536]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  415.151590]  ? find_held_lock+0x36/0x1c0
[  415.155668]  ? ____cache_alloc_node+0x1c7/0x1e0
[  415.160346]  ? lock_downgrade+0x900/0x900
[  415.164511]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.170074]  cache_grow_begin+0xa5/0x8c0
[  415.174152]  ? do_raw_spin_unlock+0xa7/0x330
[  415.178584]  fallback_alloc+0x204/0x2e0
[  415.182570]  ____cache_alloc_node+0x1c7/0x1e0
[  415.187073]  kmem_cache_alloc_node+0xe3/0x730
[  415.191574]  ? ipv6_get_ifaddr+0x42e/0x620
[  415.195822]  __alloc_skb+0x119/0x770
[  415.199537]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.204837]  ? netdev_alloc_frag+0x1f0/0x1f0
[  415.209250]  ? lock_downgrade+0x900/0x900
[  415.213415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.218962]  ? refcount_sub_and_test_checked+0x203/0x310
[  415.224417]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  415.229871]  ? addrconf_rs_timer+0x690/0x690
[  415.234298]  ndisc_alloc_skb+0x144/0x340
[  415.238368]  ndisc_send_rs+0x331/0x6e0
[  415.242261]  addrconf_rs_timer+0x314/0x690
[  415.246502]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.250753]  call_timer_fn+0x272/0x920
[  415.254646]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.258885]  ? process_timeout+0x40/0x40
[  415.262963]  ? mark_held_locks+0xc7/0x130
[  415.267113]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.271614]  ? _raw_spin_unlock_irq+0x27/0x80
[  415.276115]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.280360]  ? lockdep_hardirqs_on+0x296/0x5b0
[  415.284958]  ? trace_hardirqs_on+0xbd/0x310
[  415.289282]  ? kasan_check_read+0x11/0x20
[  415.293430]  ? __run_timers+0x7da/0xc70
[  415.297439]  ? trace_hardirqs_off_caller+0x310/0x310
[  415.302575]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  415.306808]  __run_timers+0x7e5/0xc70
[  415.310624]  ? timer_fixup_init+0x70/0x70
[  415.314778]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  415.319802]  ? zap_class+0x640/0x640
[  415.323526]  ? print_usage_bug+0xc0/0xc0
[  415.327594]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  415.332794]  ? find_held_lock+0x36/0x1c0
[  415.336863]  ? zap_class+0x640/0x640
[  415.340586]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.346128]  ? check_preemption_disabled+0x48/0x280
[  415.351208]  ? __lock_is_held+0xb5/0x140
[  415.355278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.360820]  ? check_preemption_disabled+0x48/0x280
[  415.365867]  run_timer_softirq+0x52/0xb0
[  415.369952]  ? rcu_read_lock_sched_held+0x14f/0x180
[  415.374978]  __do_softirq+0x308/0xb7e
[  415.378800]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  415.383308]  ? lock_downgrade+0x900/0x900
[  415.387482]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  415.392608]  ? pvclock_read_flags+0x160/0x160
[  415.397108]  ? lapic_next_event+0x5a/0x90
[  415.401283]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.406826]  ? kvm_clock_read+0x18/0x30
[  415.410816]  ? kvm_sched_clock_read+0x9/0x20
[  415.415231]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.420778]  ? check_preemption_disabled+0x48/0x280
[  415.425808]  irq_exit+0x17f/0x1c0
[  415.429267]  smp_apic_timer_interrupt+0x1cb/0x760
[  415.434108]  ? smp_reschedule_interrupt+0x109/0x650
[  415.439146]  ? smp_call_function_single_interrupt+0x650/0x650
[  415.445033]  ? interrupt_entry+0xb5/0xc0
[  415.449098]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.454112]  ? trace_hardirqs_off_caller+0xbb/0x310
[  415.459155]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.464002]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.469018]  ? trace_hardirqs_on_caller+0x310/0x310
[  415.474037]  ? task_prio+0x50/0x50
[  415.477585]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.483126]  ? check_preemption_disabled+0x48/0x280
[  415.488175]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  415.493031]  apic_timer_interrupt+0xf/0x20
[  415.497265]  </IRQ>
[  415.499509] RIP: 0010:lock_acquire+0x268/0x520
[  415.504095] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  415.523017] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  415.530737] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  415.538024] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  415.545299] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  415.552571] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  415.559844] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  415.567166]  ? lruvec_lru_size+0x450/0x450
[  415.571407]  ? kasan_check_read+0x11/0x20
[  415.575562]  ? lock_release+0xa00/0xa00
[  415.579549]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  415.584497]  down_read_trylock+0xda/0x140
[  415.588646]  ? shrink_slab+0x207/0x8c0
[  415.592543]  ? downgrade_write+0x270/0x270
[  415.596791]  shrink_slab+0x207/0x8c0
[  415.600508]  ? shrink_active_list+0x1f00/0x1f00
[  415.605189]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  415.610820]  ? __lock_acquire+0x62f/0x4c20
[  415.615060]  ? percpu_ref_get_many+0x240/0x240
[  415.619664]  ? print_usage_bug+0xc0/0xc0
[  415.623738]  shrink_node+0x431/0x16b0
[  415.627545]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  415.632849]  ? shrink_node_memcg+0x18f0/0x18f0
[  415.637455]  ? kvm_clock_read+0x18/0x30
[  415.641434]  ? ktime_get+0x2c1/0x400
[  415.645162]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  415.649665]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  415.655235]  ? __cpuset_node_allowed+0x19b/0x660
[  415.659995]  ? mark_held_locks+0x130/0x130
[  415.664244]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  415.669964]  ? zap_class+0x640/0x640
[  415.673719]  do_try_to_free_pages+0x3e7/0x1290
[  415.678308]  ? zap_class+0x640/0x640
[  415.682042]  ? shrink_node+0x16b0/0x16b0
[  415.686106]  ? __lock_is_held+0xb5/0x140
[  415.690197]  try_to_free_pages+0x4d0/0xb90
[  415.694446]  ? do_try_to_free_pages+0x1290/0x1290
[  415.699311]  ? lock_acquire+0x1ed/0x520
[  415.703307]  ? set_page_refcounted+0x280/0x280
[  415.707903]  ? lock_release+0xa00/0xa00
[  415.711889]  ? _raw_spin_unlock_irq+0x60/0x80
[  415.716408]  ? psi_memstall_enter+0x240/0x2b0
[  415.720906]  ? psi_memstall_tick+0x230/0x230
[  415.725357]  __alloc_pages_slowpath+0xa48/0x2de0
[  415.730153]  ? warn_alloc+0x120/0x120
[  415.733959]  ? mark_held_locks+0x130/0x130
[  415.738208]  ? find_get_entry+0xaae/0x1120
[  415.742457]  ? filemap_map_pages+0x1a20/0x1a20
[  415.747047]  ? zap_class+0x640/0x640
[  415.750772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.756313]  ? check_preemption_disabled+0x48/0x280
[  415.761331]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.766872]  ? should_fail+0x22d/0xd01
[  415.770787]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  415.775900]  ? zap_class+0x640/0x640
[  415.779651]  ? __lock_is_held+0xb5/0x140
[  415.783725]  ? mark_held_locks+0x130/0x130
[  415.787968]  ? lock_release+0xa00/0xa00
[  415.791945]  ? perf_trace_sched_process_exec+0x860/0x860
[  415.797524]  ? xa_load+0x2ba/0x460
[  415.801067]  ? lock_downgrade+0x900/0x900
[  415.805226]  ? __might_sleep+0x95/0x190
[  415.809210]  __alloc_pages_nodemask+0xad8/0xea0
[  415.813905]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  415.818952]  ? __page_cache_alloc+0x191/0x5c0
[  415.823449]  ? xa_load+0x2e1/0x460
[  415.827022]  ? xa_clear_mark+0x40/0x40
[  415.830919]  ? zap_class+0x640/0x640
[  415.834643]  ? zap_class+0x640/0x640
[  415.838356]  ? zap_class+0x640/0x640
[  415.842089]  ? __do_page_cache_readahead+0x663/0x810
[  415.847201]  ? find_held_lock+0x36/0x1c0
[  415.851270]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  415.856814]  alloc_pages_current+0x173/0x350
[  415.861233]  __page_cache_alloc+0x38c/0x5c0
[  415.865554]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.870487]  ? kasan_check_read+0x11/0x20
[  415.874638]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.879942]  ? generic_perform_write+0x6a0/0x6a0
[  415.884702]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  415.890244]  ? check_preemption_disabled+0x48/0x280
[  415.895273]  filemap_fault+0x1595/0x25f0
[  415.899354]  ? __lock_page_or_retry+0xa00/0xa00
[  415.904031]  ? mark_held_locks+0x130/0x130
[  415.908282]  ? filemap_map_pages+0xd6b/0x1a20
[  415.912780]  ? lock_downgrade+0x900/0x900
[  415.916937]  ? check_preemption_disabled+0x48/0x280
[  415.921981]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  415.926922]  ? kasan_check_read+0x11/0x20
[  415.931073]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  415.936353]  ? rcu_softirq_qs+0x20/0x20
[  415.940350]  ? filemap_map_pages+0xd92/0x1a20
[  415.944861]  ? find_get_entries_tag+0x1400/0x1400
[  415.949712]  ? debug_object_destroy+0x2b0/0x2b0
[  415.954402]  ? lock_pi_update_atomic+0x150/0x150
[  415.959192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  415.964755]  ? lock_acquire+0x1ed/0x520
[  415.968756]  ? ext4_filemap_fault+0x7a/0xad
[  415.973086]  ? lock_release+0xa00/0xa00
[  415.977073]  ? perf_trace_sched_process_exec+0x860/0x860
[  415.982529]  ? print_usage_bug+0xc0/0xc0
[  415.986593]  ? print_usage_bug+0xc0/0xc0
[  415.990671]  ? down_read+0x8d/0x120
[  415.994299]  ? ext4_filemap_fault+0x7a/0xad
[  415.998639]  ? __down_interruptible+0x700/0x700
[  416.003334]  ext4_filemap_fault+0x82/0xad
[  416.007489]  __do_fault+0x100/0x6b0
[  416.011132]  ? find_held_lock+0x36/0x1c0
[  416.015208]  ? pmd_devmap_trans_unstable+0x220/0x220
[  416.020334]  ? mark_held_locks+0x130/0x130
[  416.024575]  ? mark_held_locks+0x130/0x130
[  416.028830]  ? kasan_check_read+0x11/0x20
[  416.032994]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.038541]  __handle_mm_fault+0x3ea0/0x5be0
[  416.042958]  ? perf_trace_lock+0x7a0/0x7a0
[  416.047203]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  416.052052]  ? __switch_to_asm+0x34/0x70
[  416.056129]  ? __switch_to_asm+0x34/0x70
[  416.060217]  ? zap_class+0x640/0x640
[  416.063934]  ? zap_class+0x640/0x640
[  416.067647]  ? __x64_sys_futex+0x53e/0x6a0
[  416.071890]  ? find_held_lock+0x36/0x1c0
[  416.075970]  ? handle_mm_fault+0x42a/0xc70
[  416.080243]  ? lock_downgrade+0x900/0x900
[  416.084412]  ? check_preemption_disabled+0x48/0x280
[  416.089453]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  416.094387]  ? kasan_check_read+0x11/0x20
[  416.098539]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.103823]  ? rcu_softirq_qs+0x20/0x20
[  416.107799]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.112927]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.118480]  ? sync_mm_rss+0x9a/0x1c0
[  416.122286]  handle_mm_fault+0x54f/0xc70
[  416.126357]  ? __handle_mm_fault+0x5be0/0x5be0
[  416.130961]  ? find_vma+0x34/0x190
[  416.134510]  __do_page_fault+0x5e8/0xe60
[  416.138594]  ? trace_hardirqs_off+0xb8/0x310
[  416.143014]  do_page_fault+0xf2/0x7e0
[  416.146816]  ? vmalloc_sync_all+0x30/0x30
[  416.150966]  ? error_entry+0x70/0xd0
[  416.154683]  ? trace_hardirqs_off_caller+0xbb/0x310
[  416.159700]  ? trace_hardirqs_on_caller+0xc0/0x310
[  416.164635]  ? syscall_return_slowpath+0x5e0/0x5e0
[  416.169567]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  416.174413]  ? trace_hardirqs_on_caller+0x310/0x310
[  416.179429]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  416.184904]  ? prepare_exit_to_usermode+0x291/0x3b0
[  416.189952]  ? page_fault+0x8/0x30
[  416.193502]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  416.198348]  ? page_fault+0x8/0x30
[  416.201895]  page_fault+0x1e/0x30
[  416.205354] RIP: 0033:0x45ddf3
[  416.208562] Code: Bad RIP value.
[  416.211927] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  416.217288] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  416.224557] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  416.231827] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  416.239109] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  416.246381] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  416.253684] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  416.253689] warn_alloc_show_mem: 1 callbacks suppressed
[  416.253696] Mem-Info:
[  416.260977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  416.266348] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  416.266348]  active_file:17 inactive_file:17 isolated_file:0
[  416.266348]  unevictable:0 dirty:4 writeback:0 unstable:0
[  416.266348]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  416.266348]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  416.266348]  free:13550 free_pcp:124 free_cma:0
[  416.268718] Call Trace:
[  416.278113] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  416.311174]  <IRQ>
[  416.313748] 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
[  416.341524]  dump_stack+0x244/0x39d
[  416.343669] lowmem_reserve[]: 0 2818 6321 6321
[  416.369832]  ? dump_stack_print_info.cold.1+0x20/0x20
[  416.373430] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  416.378015]  warn_alloc.cold.116+0xb7/0x1bd
[  416.383168] lowmem_reserve[]: 0 0 3503 3503
[  416.410530]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  416.414827] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  416.419255]  ? lock_downgrade+0x900/0x900
[  416.424097] lowmem_reserve[]: 0 0 0 0
[  416.453018]  ? trace_hardirqs_off+0xb8/0x310
[  416.457162] 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
[  416.460963]  ? trace_hardirqs_off+0xb8/0x310
[  416.465340] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  416.478891]  __alloc_pages_slowpath+0x2651/0x2de0
[  416.483264] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  416.498030]  ? warn_alloc+0x120/0x120
[  416.502827] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  416.517565]  ? warn_alloc+0x120/0x120
[  416.521343] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  416.530188]  ? warn_alloc+0x120/0x120
[  416.533960] 1360 total pagecache pages
[  416.542535]  ? print_usage_bug+0xc0/0xc0
[  416.546313] 0 pages in swap cache
[  416.550191]  ? debug_object_activate+0x402/0x600
[  416.554226] Swap cache stats: add 0, delete 0, find 0/0
[  416.557669]  ? print_usage_bug+0xc0/0xc0
[  416.562395] Free swap  = 0kB
[  416.567765]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  416.571796] Total swap = 0kB
[  416.574811]  ? should_fail+0x22d/0xd01
[  416.580320] 1965979 pages RAM
[  416.583333]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.587195] 0 pages HighMem/MovableOnly
[  416.590298]  ? __lock_acquire+0x62f/0x4c20
[  416.595376] 342854 pages reserved
[  416.599344]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  416.603554] 0 pages cma reserved
[  416.607003]  ? __lock_acquire+0x62f/0x4c20
[  416.612194] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  416.615436]  ? should_fail+0x22d/0xd01
[  416.615461]  ? mark_held_locks+0x130/0x130
[  416.619732] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  416.626159]  ? mark_held_locks+0x130/0x130
[  416.630022] syz-fuzzer cpuset=/ mems_allowed=0
[  416.634251]  ? try_to_wake_up+0x11c/0x1490
[  416.657498]  ? lock_downgrade+0x900/0x900
[  416.661655]  ? zap_class+0x640/0x640
[  416.665373]  ? print_usage_bug+0xc0/0xc0
[  416.669442]  ? trace_hardirqs_off+0xb8/0x310
[  416.673854]  ? kasan_check_read+0x11/0x20
[  416.678011]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.683558]  ? check_preemption_disabled+0x48/0x280
[  416.688587]  ? __lock_is_held+0xb5/0x140
[  416.692667]  __alloc_pages_nodemask+0xad8/0xea0
[  416.697369]  ? zap_class+0x640/0x640
[  416.701091]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  416.706123]  ? find_held_lock+0x36/0x1c0
[  416.710222]  ? ____cache_alloc_node+0x1c7/0x1e0
[  416.714898]  ? lock_downgrade+0x900/0x900
[  416.719059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.724609]  cache_grow_begin+0xa5/0x8c0
[  416.728679]  ? do_raw_spin_unlock+0xa7/0x330
[  416.733109]  fallback_alloc+0x204/0x2e0
[  416.737118]  ____cache_alloc_node+0x1c7/0x1e0
[  416.741647]  kmem_cache_alloc_node+0xe3/0x730
[  416.746159]  ? ipv6_get_ifaddr+0x42e/0x620
[  416.750408]  __alloc_skb+0x119/0x770
[  416.754131]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.759432]  ? netdev_alloc_frag+0x1f0/0x1f0
[  416.763844]  ? lock_downgrade+0x900/0x900
[  416.768004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.773551]  ? refcount_sub_and_test_checked+0x203/0x310
[  416.779033]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  416.784505]  ? addrconf_rs_timer+0x690/0x690
[  416.788931]  ndisc_alloc_skb+0x144/0x340
[  416.793030]  ndisc_send_rs+0x331/0x6e0
[  416.796932]  addrconf_rs_timer+0x314/0x690
[  416.801182]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.805454]  call_timer_fn+0x272/0x920
[  416.809347]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.813582]  ? process_timeout+0x40/0x40
[  416.817665]  ? __run_timers+0x7da/0xc70
[  416.821643]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.826168]  ? _raw_spin_unlock_irq+0x27/0x80
[  416.830673]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.834929]  ? lockdep_hardirqs_on+0x296/0x5b0
[  416.839514]  ? trace_hardirqs_on+0xbd/0x310
[  416.843839]  ? kasan_check_read+0x11/0x20
[  416.847987]  ? __run_timers+0x7da/0xc70
[  416.851966]  ? trace_hardirqs_off_caller+0x310/0x310
[  416.857075]  ? __queue_work+0x1440/0x1440
[  416.861234]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  416.865473]  __run_timers+0x7e5/0xc70
[  416.869286]  ? timer_fixup_init+0x70/0x70
[  416.873447]  ? kasan_check_read+0x11/0x20
[  416.877605]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  416.882891]  ? rcu_softirq_qs+0x20/0x20
[  416.886871]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.892419]  ? check_preemption_disabled+0x48/0x280
[  416.897448]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  416.902231]  ? retint_kernel+0x2d/0x2d
[  416.906122]  ? trace_hardirqs_on_caller+0xc0/0x310
[  416.911072]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  416.915837]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  416.921324]  ? zap_class+0x640/0x640
[  416.925053]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.930607]  ? check_preemption_disabled+0x48/0x280
[  416.935638]  ? __lock_is_held+0xb5/0x140
[  416.939705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.945247]  ? check_preemption_disabled+0x48/0x280
[  416.950490]  run_timer_softirq+0x52/0xb0
[  416.954558]  ? rcu_read_lock_sched_held+0x14f/0x180
[  416.959575]  __do_softirq+0x308/0xb7e
[  416.963380]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  416.967879]  ? lock_downgrade+0x900/0x900
[  416.972033]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  416.977156]  ? pvclock_read_flags+0x160/0x160
[  416.981656]  ? lapic_next_event+0x5a/0x90
[  416.985809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  416.991451]  ? kvm_clock_read+0x18/0x30
[  416.995455]  ? kvm_sched_clock_read+0x9/0x20
[  416.999884]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.005433]  ? check_preemption_disabled+0x48/0x280
[  417.010471]  irq_exit+0x17f/0x1c0
[  417.013934]  smp_apic_timer_interrupt+0x1cb/0x760
[  417.018791]  ? smp_reschedule_interrupt+0x109/0x650
[  417.023810]  ? smp_call_function_single_interrupt+0x650/0x650
[  417.029734]  ? interrupt_entry+0xb5/0xc0
[  417.033799]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.038821]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.043844]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.048689]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.053707]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.058730]  ? task_prio+0x50/0x50
[  417.062280]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.067821]  ? check_preemption_disabled+0x48/0x280
[  417.072848]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.077704]  apic_timer_interrupt+0xf/0x20
[  417.082047]  </IRQ>
[  417.084295] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  417.089230] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  417.108163] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  417.115878] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  417.123167] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  417.130467] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  417.137735] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  417.145017] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  417.152335]  skb_clone+0x1bb/0x500
[  417.155881]  ? skb_split+0x11e0/0x11e0
[  417.159778]  ? preempt_notifier_register+0x200/0x200
[  417.164897]  ? __switch_to_asm+0x34/0x70
[  417.168963]  ? __switch_to_asm+0x34/0x70
[  417.173023]  ? __switch_to_asm+0x40/0x70
[  417.177086]  ? __switch_to_asm+0x34/0x70
[  417.181159]  ? __switch_to_asm+0x40/0x70
[  417.185228]  ? __switch_to_asm+0x40/0x70
[  417.189295]  ? __switch_to_asm+0x34/0x70
[  417.193386]  ? __switch_to_asm+0x34/0x70
[  417.197452]  ? __switch_to_asm+0x40/0x70
[  417.201510]  ? __switch_to_asm+0x34/0x70
[  417.205581]  bpf_clone_redirect+0xb9/0x490
[  417.209843]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  417.214869]  ? __sched_text_start+0x8/0x8
[  417.219019]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  417.223807]  ? find_held_lock+0x36/0x1c0
[  417.227878]  ? lock_acquire+0x1ed/0x520
[  417.231854]  ? bpf_test_run+0x3ee/0x7a0
[  417.235833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.241381]  ? check_preemption_disabled+0x48/0x280
[  417.246421]  ? kasan_check_read+0x11/0x20
[  417.250570]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.255848]  ? rcu_softirq_qs+0x20/0x20
[  417.259829]  ? preempt_schedule+0x4d/0x60
[  417.263979]  ? ___preempt_schedule+0x16/0x18
[  417.268406]  ? bpf_test_run+0x271/0x7a0
[  417.272403]  ? netlink_diag_dump+0x2a0/0x2a0
[  417.276835]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.282377]  ? bpf_test_init.isra.10+0x70/0x100
[  417.287057]  ? bpf_prog_test_run_skb+0x762/0xd60
[  417.291833]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  417.296685]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  417.302226]  ? fput+0x130/0x1a0
[  417.305518]  ? __bpf_prog_get+0x9b/0x290
[  417.309590]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  417.314443]  ? bpf_prog_test_run+0x130/0x1a0
[  417.318856]  ? __x64_sys_bpf+0x3d8/0x520
[  417.322917]  ? bpf_prog_get+0x20/0x20
[  417.326739]  ? do_syscall_64+0x1b9/0x820
[  417.330817]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  417.336191]  ? syscall_return_slowpath+0x5e0/0x5e0
[  417.341122]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.345990]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.351010]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  417.356041]  ? prepare_exit_to_usermode+0x291/0x3b0
[  417.361066]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.365937]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  417.371330] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  417.371452] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  417.378268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  417.378278] Call Trace:
[  417.384899] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  417.394104]  <IRQ>
[  417.396700] syz-executor4 cpuset=syz4 mems_allowed=0
[  417.407191]  dump_stack+0x244/0x39d
[  417.418043]  ? dump_stack_print_info.cold.1+0x20/0x20
[  417.423250]  warn_alloc.cold.116+0xb7/0x1bd
[  417.427578]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  417.432427]  ? lock_downgrade+0x900/0x900
[  417.436591]  ? trace_hardirqs_off+0xb8/0x310
[  417.441010]  ? trace_hardirqs_off+0xb8/0x310
[  417.445437]  __alloc_pages_slowpath+0x2651/0x2de0
[  417.450316]  ? warn_alloc+0x120/0x120
[  417.454125]  ? print_usage_bug+0xc0/0xc0
[  417.458210]  ? warn_alloc+0x120/0x120
[  417.462022]  ? warn_alloc+0x120/0x120
[  417.465828]  ? print_usage_bug+0xc0/0xc0
[  417.469896]  ? print_usage_bug+0xc0/0xc0
[  417.473968]  ? __lock_acquire+0x62f/0x4c20
[  417.478213]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.483754]  ? should_fail+0x22d/0xd01
[  417.487647]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.492756]  ? __lock_acquire+0x62f/0x4c20
[  417.497002]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  417.502107]  ? __lock_acquire+0x62f/0x4c20
[  417.506348]  ? should_fail+0x22d/0xd01
[  417.510239]  ? find_held_lock+0x36/0x1c0
[  417.514313]  ? mark_held_locks+0x130/0x130
[  417.518555]  ? mark_held_locks+0x130/0x130
[  417.522824]  ? zap_class+0x640/0x640
[  417.526542]  ? zap_class+0x640/0x640
[  417.530261]  ? print_usage_bug+0xc0/0xc0
[  417.534324]  ? do_raw_spin_unlock+0xa7/0x330
[  417.538733]  ? zap_class+0x640/0x640
[  417.542448]  ? print_usage_bug+0xc0/0xc0
[  417.546512]  ? wq_watchdog_touch+0x9c/0xfe
[  417.550756]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.556300]  ? check_preemption_disabled+0x48/0x280
[  417.561332]  ? __lock_is_held+0xb5/0x140
[  417.565405]  __alloc_pages_nodemask+0xad8/0xea0
[  417.570076]  ? zap_class+0x640/0x640
[  417.573795]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  417.578829]  ? find_held_lock+0x36/0x1c0
[  417.582903]  ? ____cache_alloc_node+0x1c7/0x1e0
[  417.587591]  ? lock_downgrade+0x900/0x900
[  417.591753]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.597301]  cache_grow_begin+0xa5/0x8c0
[  417.601367]  ? do_raw_spin_unlock+0xa7/0x330
[  417.605801]  fallback_alloc+0x204/0x2e0
[  417.609782]  ____cache_alloc_node+0x1c7/0x1e0
[  417.614286]  kmem_cache_alloc_node+0xe3/0x730
[  417.618785]  ? ipv6_get_ifaddr+0x42e/0x620
[  417.623038]  __alloc_skb+0x119/0x770
[  417.626753]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  417.632041]  ? netdev_alloc_frag+0x1f0/0x1f0
[  417.636452]  ? lock_downgrade+0x900/0x900
[  417.640611]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.646158]  ? refcount_sub_and_test_checked+0x203/0x310
[  417.651653]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  417.657115]  ? addrconf_rs_timer+0x690/0x690
[  417.661574]  ndisc_alloc_skb+0x144/0x340
[  417.665659]  ndisc_send_rs+0x331/0x6e0
[  417.669552]  addrconf_rs_timer+0x314/0x690
[  417.673812]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.678065]  call_timer_fn+0x272/0x920
[  417.681957]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.686192]  ? process_timeout+0x40/0x40
[  417.690266]  ? mark_held_locks+0xc7/0x130
[  417.694419]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.698924]  ? _raw_spin_unlock_irq+0x27/0x80
[  417.703428]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.707675]  ? lockdep_hardirqs_on+0x296/0x5b0
[  417.712262]  ? trace_hardirqs_on+0xbd/0x310
[  417.716585]  ? kasan_check_read+0x11/0x20
[  417.720741]  ? __run_timers+0x7da/0xc70
[  417.724720]  ? trace_hardirqs_off_caller+0x310/0x310
[  417.729843]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.734087]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  417.738322]  __run_timers+0x7e5/0xc70
[  417.742147]  ? timer_fixup_init+0x70/0x70
[  417.746301]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  417.751330]  ? zap_class+0x640/0x640
[  417.755064]  ? print_usage_bug+0xc0/0xc0
[  417.759129]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  417.764350]  ? find_held_lock+0x36/0x1c0
[  417.768419]  ? zap_class+0x640/0x640
[  417.772160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.777705]  ? check_preemption_disabled+0x48/0x280
[  417.782736]  ? __lock_is_held+0xb5/0x140
[  417.786800]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.792344]  ? check_preemption_disabled+0x48/0x280
[  417.797371]  run_timer_softirq+0x52/0xb0
[  417.801464]  ? rcu_read_lock_sched_held+0x14f/0x180
[  417.806490]  __do_softirq+0x308/0xb7e
[  417.810314]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  417.814813]  ? lock_downgrade+0x900/0x900
[  417.818968]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  417.824080]  ? pvclock_read_flags+0x160/0x160
[  417.828581]  ? lapic_next_event+0x5a/0x90
[  417.832739]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.838291]  ? kvm_clock_read+0x18/0x30
[  417.842269]  ? kvm_sched_clock_read+0x9/0x20
[  417.846699]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  417.852259]  ? check_preemption_disabled+0x48/0x280
[  417.857288]  irq_exit+0x17f/0x1c0
[  417.860750]  smp_apic_timer_interrupt+0x1cb/0x760
[  417.865595]  ? smp_reschedule_interrupt+0x109/0x650
[  417.870613]  ? smp_call_function_single_interrupt+0x650/0x650
[  417.876498]  ? interrupt_entry+0xb5/0xc0
[  417.880563]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.885580]  ? trace_hardirqs_off_caller+0xbb/0x310
[  417.890601]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.895447]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.900465]  ? trace_hardirqs_on_caller+0x310/0x310
[  417.905482]  ? task_prio+0x50/0x50
[  417.909037]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  417.914583]  ? check_preemption_disabled+0x48/0x280
[  417.919625]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  417.924493]  apic_timer_interrupt+0xf/0x20
[  417.928725]  </IRQ>
[  417.930969] RIP: 0010:lock_acquire+0x268/0x520
[  417.935566] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  417.954488] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  417.962237] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  417.969515] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  417.976783] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  417.984069] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  417.991347] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  417.998663]  ? lruvec_lru_size+0x450/0x450
[  418.002906]  ? kasan_check_read+0x11/0x20
[  418.007091]  ? lock_release+0xa00/0xa00
[  418.011076]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  418.016020]  down_read_trylock+0xda/0x140
[  418.020190]  ? shrink_slab+0x207/0x8c0
[  418.024082]  ? downgrade_write+0x270/0x270
[  418.028331]  shrink_slab+0x207/0x8c0
[  418.032048]  ? shrink_active_list+0x1f00/0x1f00
[  418.036730]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  418.042364]  ? __lock_acquire+0x62f/0x4c20
[  418.046605]  ? percpu_ref_get_many+0x240/0x240
[  418.051211]  ? print_usage_bug+0xc0/0xc0
[  418.055296]  shrink_node+0x431/0x16b0
[  418.059104]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  418.064412]  ? shrink_node_memcg+0x18f0/0x18f0
[  418.069015]  ? kvm_clock_read+0x18/0x30
[  418.072993]  ? ktime_get+0x2c1/0x400
[  418.076714]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  418.081219]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  418.086760]  ? __cpuset_node_allowed+0x19b/0x660
[  418.091519]  ? mark_held_locks+0x130/0x130
[  418.095763]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  418.101512]  ? zap_class+0x640/0x640
[  418.105261]  do_try_to_free_pages+0x3e7/0x1290
[  418.109864]  ? zap_class+0x640/0x640
[  418.113596]  ? shrink_node+0x16b0/0x16b0
[  418.117664]  ? __lock_is_held+0xb5/0x140
[  418.121742]  try_to_free_pages+0x4d0/0xb90
[  418.125989]  ? do_try_to_free_pages+0x1290/0x1290
[  418.130852]  ? lock_acquire+0x1ed/0x520
[  418.134832]  ? set_page_refcounted+0x280/0x280
[  418.139425]  ? lock_release+0xa00/0xa00
[  418.143424]  ? _raw_spin_unlock_irq+0x60/0x80
[  418.147936]  ? psi_memstall_enter+0x240/0x2b0
[  418.152439]  ? psi_memstall_tick+0x230/0x230
[  418.156882]  __alloc_pages_slowpath+0xa48/0x2de0
[  418.161681]  ? warn_alloc+0x120/0x120
[  418.165487]  ? mark_held_locks+0x130/0x130
[  418.169730]  ? find_get_entry+0xaae/0x1120
[  418.173980]  ? filemap_map_pages+0x1a20/0x1a20
[  418.178570]  ? zap_class+0x640/0x640
[  418.182338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.187881]  ? check_preemption_disabled+0x48/0x280
[  418.192946]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.198502]  ? should_fail+0x22d/0xd01
[  418.202399]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  418.207510]  ? zap_class+0x640/0x640
[  418.211250]  ? __lock_is_held+0xb5/0x140
[  418.215327]  ? mark_held_locks+0x130/0x130
[  418.219567]  ? lock_release+0xa00/0xa00
[  418.223548]  ? perf_trace_sched_process_exec+0x860/0x860
[  418.229002]  ? xa_load+0x2ba/0x460
[  418.232550]  ? lock_downgrade+0x900/0x900
[  418.236734]  ? __might_sleep+0x95/0x190
[  418.240722]  __alloc_pages_nodemask+0xad8/0xea0
[  418.245401]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  418.250424]  ? __page_cache_alloc+0x191/0x5c0
[  418.254934]  ? xa_load+0x2e1/0x460
[  418.258479]  ? xa_clear_mark+0x40/0x40
[  418.262371]  ? zap_class+0x640/0x640
[  418.266093]  ? zap_class+0x640/0x640
[  418.269809]  ? zap_class+0x640/0x640
[  418.273532]  ? __do_page_cache_readahead+0x663/0x810
[  418.278649]  ? find_held_lock+0x36/0x1c0
[  418.282723]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  418.288272]  alloc_pages_current+0x173/0x350
[  418.292690]  __page_cache_alloc+0x38c/0x5c0
[  418.297013]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.301963]  ? kasan_check_read+0x11/0x20
[  418.306123]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.311417]  ? generic_perform_write+0x6a0/0x6a0
[  418.316186]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.321729]  ? check_preemption_disabled+0x48/0x280
[  418.326757]  filemap_fault+0x1595/0x25f0
[  418.330836]  ? __lock_page_or_retry+0xa00/0xa00
[  418.335512]  ? mark_held_locks+0x130/0x130
[  418.339762]  ? filemap_map_pages+0xd6b/0x1a20
[  418.344264]  ? lock_downgrade+0x900/0x900
[  418.348428]  ? check_preemption_disabled+0x48/0x280
[  418.353459]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.358405]  ? kasan_check_read+0x11/0x20
[  418.362561]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.367841]  ? rcu_softirq_qs+0x20/0x20
[  418.371839]  ? filemap_map_pages+0xd92/0x1a20
[  418.376349]  ? find_get_entries_tag+0x1400/0x1400
[  418.381212]  ? debug_object_destroy+0x2b0/0x2b0
[  418.385887]  ? lock_pi_update_atomic+0x150/0x150
[  418.390653]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.396209]  ? lock_acquire+0x1ed/0x520
[  418.400200]  ? ext4_filemap_fault+0x7a/0xad
[  418.404531]  ? lock_release+0xa00/0xa00
[  418.408512]  ? perf_trace_sched_process_exec+0x860/0x860
[  418.413967]  ? print_usage_bug+0xc0/0xc0
[  418.418058]  ? print_usage_bug+0xc0/0xc0
[  418.422155]  ? down_read+0x8d/0x120
[  418.425800]  ? ext4_filemap_fault+0x7a/0xad
[  418.430130]  ? __down_interruptible+0x700/0x700
[  418.434822]  ext4_filemap_fault+0x82/0xad
[  418.438978]  __do_fault+0x100/0x6b0
[  418.442608]  ? find_held_lock+0x36/0x1c0
[  418.446679]  ? pmd_devmap_trans_unstable+0x220/0x220
[  418.451815]  ? mark_held_locks+0x130/0x130
[  418.456066]  ? mark_held_locks+0x130/0x130
[  418.460313]  ? kasan_check_read+0x11/0x20
[  418.464469]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  418.470019]  __handle_mm_fault+0x3ea0/0x5be0
[  418.474439]  ? perf_trace_lock+0x7a0/0x7a0
[  418.478688]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  418.483541]  ? __switch_to_asm+0x34/0x70
[  418.487605]  ? __switch_to_asm+0x34/0x70
[  418.491683]  ? zap_class+0x640/0x640
[  418.495395]  ? zap_class+0x640/0x640
[  418.499109]  ? __x64_sys_futex+0x53e/0x6a0
[  418.503362]  ? find_held_lock+0x36/0x1c0
[  418.507434]  ? handle_mm_fault+0x42a/0xc70
[  418.511678]  ? lock_downgrade+0x900/0x900
[  418.515833]  ? check_preemption_disabled+0x48/0x280
[  418.520875]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  418.525819]  ? kasan_check_read+0x11/0x20
[  418.529970]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  418.535254]  ? rcu_softirq_qs+0x20/0x20
[  418.539239]  ? trace_hardirqs_off_caller+0x310/0x310
[  418.544360]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  418.549909]  ? sync_mm_rss+0x9a/0x1c0
[  418.553730]  handle_mm_fault+0x54f/0xc70
[  418.557800]  ? __handle_mm_fault+0x5be0/0x5be0
[  418.562387]  ? find_vma+0x34/0x190
[  418.565942]  __do_page_fault+0x5e8/0xe60
[  418.570011]  ? trace_hardirqs_off+0xb8/0x310
[  418.574433]  do_page_fault+0xf2/0x7e0
[  418.578254]  ? vmalloc_sync_all+0x30/0x30
[  418.582408]  ? error_entry+0x70/0xd0
[  418.586130]  ? trace_hardirqs_off_caller+0xbb/0x310
[  418.591165]  ? trace_hardirqs_on_caller+0xc0/0x310
[  418.596098]  ? syscall_return_slowpath+0x5e0/0x5e0
[  418.601033]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.605897]  ? trace_hardirqs_on_caller+0x310/0x310
[  418.610937]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  418.616407]  ? prepare_exit_to_usermode+0x291/0x3b0
[  418.621429]  ? page_fault+0x8/0x30
[  418.624979]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  418.629845]  ? page_fault+0x8/0x30
[  418.633390]  page_fault+0x1e/0x30
[  418.636846] RIP: 0033:0x45ddf3
[  418.640052] Code: Bad RIP value.
[  418.643413] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  418.648790] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  418.656061] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  418.663332] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  418.670611] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  418.677920] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  418.685226] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  418.685232] warn_alloc_show_mem: 1 callbacks suppressed
[  418.685239] Mem-Info:
[  418.692531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  418.697902] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  418.697902]  active_file:17 inactive_file:17 isolated_file:0
[  418.697902]  unevictable:0 dirty:4 writeback:0 unstable:0
[  418.697902]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  418.697902]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  418.697902]  free:13550 free_pcp:124 free_cma:0
[  418.700287] Call Trace:
[  418.709689] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  418.742727]  <IRQ>
[  418.745302] 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
[  418.773080]  dump_stack+0x244/0x39d
[  418.775207] lowmem_reserve[]: 0 2818 6321 6321
[  418.801353]  ? dump_stack_print_info.cold.1+0x20/0x20
[  418.804953] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  418.809544]  warn_alloc.cold.116+0xb7/0x1bd
[  418.814697] lowmem_reserve[]: 0 0 3503 3503
[  418.842063]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  418.846360] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  418.850687]  ? lock_downgrade+0x900/0x900
[  418.855499] lowmem_reserve[]: 0 0 0 0
[  418.884410]  ? trace_hardirqs_off+0xb8/0x310
[  418.888535] 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
[  418.892338]  ? trace_hardirqs_off+0xb8/0x310
[  418.896712] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  418.910269]  __alloc_pages_slowpath+0x2651/0x2de0
[  418.914649] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  418.929430]  ? warn_alloc+0x120/0x120
[  418.934225] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  418.949199]  ? print_usage_bug+0xc0/0xc0
[  418.952999] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  418.961831]  ? warn_alloc+0x120/0x120
[  418.965865] 1360 total pagecache pages
[  418.974447]  ? warn_alloc+0x120/0x120
[  418.978225] 0 pages in swap cache
[  418.982101]  ? print_usage_bug+0xc0/0xc0
[  418.985875] Swap cache stats: add 0, delete 0, find 0/0
[  418.989326]  ? kvm_clock_read+0x18/0x30
[  418.993357] Free swap  = 0kB
[  418.998723]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  419.002665] Total swap = 0kB
[  419.005679]  ? print_usage_bug+0xc0/0xc0
[  419.010670] 1965979 pages RAM
[  419.013687]  ? __lock_acquire+0x62f/0x4c20
[  419.017715] 0 pages HighMem/MovableOnly
[  419.017724] 342854 pages reserved
[  419.020829]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.025032] 0 pages cma reserved
[  419.029007]  ? should_fail+0x22d/0xd01
[  419.032510] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  419.037959]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.037982]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.041427] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  419.045208]  ? __lock_acquire+0x62f/0x4c20
[  419.051680] syz-fuzzer cpuset=/ mems_allowed=0
[  419.056977]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.086313]  ? __lock_acquire+0x62f/0x4c20
[  419.090558]  ? should_fail+0x22d/0xd01
[  419.094450]  ? rcu_irq_exit+0x1a2/0x390
[  419.098446]  ? mark_held_locks+0x130/0x130
[  419.102694]  ? mark_held_locks+0x130/0x130
[  419.106942]  ? mark_held_locks+0xc7/0x130
[  419.111097]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  419.116132]  ? zap_class+0x640/0x640
[  419.119856]  ? print_usage_bug+0xc0/0xc0
[  419.123927]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.129486]  ? check_preemption_disabled+0x48/0x280
[  419.134527]  ? __lock_is_held+0xb5/0x140
[  419.138614]  __alloc_pages_nodemask+0xad8/0xea0
[  419.143297]  ? zap_class+0x640/0x640
[  419.147022]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  419.152058]  ? find_held_lock+0x36/0x1c0
[  419.156132]  ? ____cache_alloc_node+0x1c7/0x1e0
[  419.160812]  ? lock_downgrade+0x900/0x900
[  419.164973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.170522]  cache_grow_begin+0xa5/0x8c0
[  419.174587]  ? do_raw_spin_unlock+0xa7/0x330
[  419.179006]  fallback_alloc+0x204/0x2e0
[  419.182987]  ____cache_alloc_node+0x1c7/0x1e0
[  419.187504]  kmem_cache_alloc_node+0xe3/0x730
[  419.192004]  ? ipv6_get_ifaddr+0x42e/0x620
[  419.196251]  __alloc_skb+0x119/0x770
[  419.199979]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.205261]  ? netdev_alloc_frag+0x1f0/0x1f0
[  419.209675]  ? lock_downgrade+0x900/0x900
[  419.213833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.219373]  ? refcount_sub_and_test_checked+0x203/0x310
[  419.224842]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  419.230337]  ? addrconf_rs_timer+0x690/0x690
[  419.234759]  ndisc_alloc_skb+0x144/0x340
[  419.238832]  ndisc_send_rs+0x331/0x6e0
[  419.242741]  addrconf_rs_timer+0x314/0x690
[  419.246984]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.251231]  call_timer_fn+0x272/0x920
[  419.255133]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.259383]  ? process_timeout+0x40/0x40
[  419.263502]  ? __run_timers+0x7da/0xc70
[  419.267490]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.271982]  ? _raw_spin_unlock_irq+0x27/0x80
[  419.276479]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.280717]  ? lockdep_hardirqs_on+0x296/0x5b0
[  419.285303]  ? trace_hardirqs_on+0xbd/0x310
[  419.289627]  ? kasan_check_read+0x11/0x20
[  419.293775]  ? __run_timers+0x7da/0xc70
[  419.297752]  ? trace_hardirqs_off_caller+0x310/0x310
[  419.302865]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.307120]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  419.311363]  __run_timers+0x7e5/0xc70
[  419.315193]  ? timer_fixup_init+0x70/0x70
[  419.319345]  ? kasan_check_read+0x11/0x20
[  419.323507]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.328781]  ? rcu_softirq_qs+0x20/0x20
[  419.332760]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.338305]  ? check_preemption_disabled+0x48/0x280
[  419.343330]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  419.348114]  ? retint_kernel+0x2d/0x2d
[  419.352018]  ? trace_hardirqs_on_caller+0xc0/0x310
[  419.356956]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  419.361720]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  419.367187]  ? zap_class+0x640/0x640
[  419.370908]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.376460]  ? check_preemption_disabled+0x48/0x280
[  419.381492]  ? __lock_is_held+0xb5/0x140
[  419.385565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.391106]  ? check_preemption_disabled+0x48/0x280
[  419.396129]  run_timer_softirq+0x52/0xb0
[  419.400234]  ? rcu_read_lock_sched_held+0x14f/0x180
[  419.405289]  __do_softirq+0x308/0xb7e
[  419.409096]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  419.413596]  ? lock_downgrade+0x900/0x900
[  419.417766]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  419.422882]  ? pvclock_read_flags+0x160/0x160
[  419.427385]  ? lapic_next_event+0x5a/0x90
[  419.431543]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.437091]  ? kvm_clock_read+0x18/0x30
[  419.441093]  ? kvm_sched_clock_read+0x9/0x20
[  419.445507]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.451051]  ? check_preemption_disabled+0x48/0x280
[  419.456084]  irq_exit+0x17f/0x1c0
[  419.459548]  smp_apic_timer_interrupt+0x1cb/0x760
[  419.464393]  ? smp_reschedule_interrupt+0x109/0x650
[  419.469427]  ? smp_call_function_single_interrupt+0x650/0x650
[  419.475316]  ? interrupt_entry+0xb5/0xc0
[  419.479381]  ? trace_hardirqs_off_caller+0xbb/0x310
[  419.484407]  ? trace_hardirqs_off_caller+0xbb/0x310
[  419.489449]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.494302]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.499318]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.504335]  ? task_prio+0x50/0x50
[  419.507878]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.513425]  ? check_preemption_disabled+0x48/0x280
[  419.518466]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.523325]  apic_timer_interrupt+0xf/0x20
[  419.527562]  </IRQ>
[  419.529802] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  419.534752] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  419.553686] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  419.561407] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  419.568693] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  419.575966] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  419.583238] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  419.590512] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  419.597834]  skb_clone+0x1bb/0x500
[  419.601380]  ? skb_split+0x11e0/0x11e0
[  419.605283]  ? preempt_notifier_register+0x200/0x200
[  419.610385]  ? __switch_to_asm+0x34/0x70
[  419.614470]  ? __switch_to_asm+0x34/0x70
[  419.618528]  ? __switch_to_asm+0x40/0x70
[  419.622589]  ? __switch_to_asm+0x34/0x70
[  419.626649]  ? __switch_to_asm+0x40/0x70
[  419.630710]  ? __switch_to_asm+0x40/0x70
[  419.634769]  ? __switch_to_asm+0x34/0x70
[  419.638833]  ? __switch_to_asm+0x34/0x70
[  419.642891]  ? __switch_to_asm+0x40/0x70
[  419.646951]  ? __switch_to_asm+0x34/0x70
[  419.651020]  bpf_clone_redirect+0xb9/0x490
[  419.655267]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  419.660297]  ? __sched_text_start+0x8/0x8
[  419.664455]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  419.669245]  ? find_held_lock+0x36/0x1c0
[  419.673337]  ? lock_acquire+0x1ed/0x520
[  419.677336]  ? bpf_test_run+0x3ee/0x7a0
[  419.681340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  419.686890]  ? check_preemption_disabled+0x48/0x280
[  419.691931]  ? kasan_check_read+0x11/0x20
[  419.696084]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.701360]  ? rcu_softirq_qs+0x20/0x20
[  419.705355]  ? preempt_schedule+0x4d/0x60
[  419.709510]  ? ___preempt_schedule+0x16/0x18
[  419.713931]  ? bpf_test_run+0x271/0x7a0
[  419.717922]  ? netlink_diag_dump+0x2a0/0x2a0
[  419.722339]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.727877]  ? bpf_test_init.isra.10+0x70/0x100
[  419.732554]  ? bpf_prog_test_run_skb+0x762/0xd60
[  419.737320]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  419.742183]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  419.747725]  ? fput+0x130/0x1a0
[  419.751015]  ? __bpf_prog_get+0x9b/0x290
[  419.755083]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  419.759933]  ? bpf_prog_test_run+0x130/0x1a0
[  419.764350]  ? __x64_sys_bpf+0x3d8/0x520
[  419.768437]  ? bpf_prog_get+0x20/0x20
[  419.772262]  ? do_syscall_64+0x1b9/0x820
[  419.776349]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  419.781715]  ? syscall_return_slowpath+0x5e0/0x5e0
[  419.786647]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.791500]  ? trace_hardirqs_on_caller+0x310/0x310
[  419.796537]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  419.801560]  ? prepare_exit_to_usermode+0x291/0x3b0
[  419.806597]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  419.811475]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  419.816861] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  419.816948] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  419.823799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  419.823804] Call Trace:
[  419.823811]  <IRQ>
[  419.823830]  dump_stack+0x244/0x39d
[  419.823863]  ? dump_stack_print_info.cold.1+0x20/0x20
[  419.823888]  warn_alloc.cold.116+0xb7/0x1bd
[  419.830463] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  419.839738]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  419.842300] syz-executor4 cpuset=syz4 mems_allowed=0
[  419.844489]  ? lock_downgrade+0x900/0x900
[  419.882134]  ? trace_hardirqs_off+0xb8/0x310
[  419.886567]  ? trace_hardirqs_off+0xb8/0x310
[  419.890989]  __alloc_pages_slowpath+0x2651/0x2de0
[  419.895867]  ? warn_alloc+0x120/0x120
[  419.899676]  ? print_usage_bug+0xc0/0xc0
[  419.903743]  ? warn_alloc+0x120/0x120
[  419.907567]  ? warn_alloc+0x120/0x120
[  419.911374]  ? print_usage_bug+0xc0/0xc0
[  419.915457]  ? kvm_clock_read+0x18/0x30
[  419.919442]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  419.924469]  ? print_usage_bug+0xc0/0xc0
[  419.928536]  ? __lock_acquire+0x62f/0x4c20
[  419.932779]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  419.938321]  ? should_fail+0x22d/0xd01
[  419.942208]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  419.947495]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.952612]  ? __lock_acquire+0x62f/0x4c20
[  419.956855]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  419.961965]  ? __lock_acquire+0x62f/0x4c20
[  419.966217]  ? should_fail+0x22d/0xd01
[  419.970104]  ? rcu_irq_exit+0x1a2/0x390
[  419.974092]  ? mark_held_locks+0x130/0x130
[  419.978338]  ? mark_held_locks+0x130/0x130
[  419.982580]  ? mark_held_locks+0xc7/0x130
[  419.986733]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  419.991752]  ? zap_class+0x640/0x640
[  419.995483]  ? print_usage_bug+0xc0/0xc0
[  419.999550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.005110]  ? check_preemption_disabled+0x48/0x280
[  420.010181]  ? __lock_is_held+0xb5/0x140
[  420.014259]  __alloc_pages_nodemask+0xad8/0xea0
[  420.018936]  ? zap_class+0x640/0x640
[  420.022657]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  420.027687]  ? find_held_lock+0x36/0x1c0
[  420.031762]  ? ____cache_alloc_node+0x1c7/0x1e0
[  420.036440]  ? lock_downgrade+0x900/0x900
[  420.040599]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.046153]  cache_grow_begin+0xa5/0x8c0
[  420.050219]  ? do_raw_spin_unlock+0xa7/0x330
[  420.054643]  fallback_alloc+0x204/0x2e0
[  420.058630]  ____cache_alloc_node+0x1c7/0x1e0
[  420.063135]  kmem_cache_alloc_node+0xe3/0x730
[  420.067643]  ? ipv6_get_ifaddr+0x42e/0x620
[  420.071899]  __alloc_skb+0x119/0x770
[  420.075622]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.080905]  ? netdev_alloc_frag+0x1f0/0x1f0
[  420.085326]  ? lock_downgrade+0x900/0x900
[  420.089496]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.095042]  ? refcount_sub_and_test_checked+0x203/0x310
[  420.100504]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  420.105958]  ? addrconf_rs_timer+0x690/0x690
[  420.110381]  ndisc_alloc_skb+0x144/0x340
[  420.114451]  ndisc_send_rs+0x331/0x6e0
[  420.118349]  addrconf_rs_timer+0x314/0x690
[  420.122592]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.126861]  call_timer_fn+0x272/0x920
[  420.130752]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.134993]  ? process_timeout+0x40/0x40
[  420.139068]  ? mark_held_locks+0xc7/0x130
[  420.143250]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.147743]  ? _raw_spin_unlock_irq+0x27/0x80
[  420.152239]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.156479]  ? lockdep_hardirqs_on+0x296/0x5b0
[  420.161094]  ? trace_hardirqs_on+0xbd/0x310
[  420.165416]  ? kasan_check_read+0x11/0x20
[  420.169566]  ? __run_timers+0x7da/0xc70
[  420.173546]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.178690]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.182954]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  420.187191]  __run_timers+0x7e5/0xc70
[  420.191018]  ? timer_fixup_init+0x70/0x70
[  420.195179]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  420.200201]  ? zap_class+0x640/0x640
[  420.203929]  ? print_usage_bug+0xc0/0xc0
[  420.207995]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  420.213199]  ? find_held_lock+0x36/0x1c0
[  420.217266]  ? zap_class+0x640/0x640
[  420.220988]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.226537]  ? check_preemption_disabled+0x48/0x280
[  420.231583]  ? __lock_is_held+0xb5/0x140
[  420.235649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.241207]  ? check_preemption_disabled+0x48/0x280
[  420.246236]  run_timer_softirq+0x52/0xb0
[  420.250302]  ? rcu_read_lock_sched_held+0x14f/0x180
[  420.255324]  __do_softirq+0x308/0xb7e
[  420.259133]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  420.263644]  ? lock_downgrade+0x900/0x900
[  420.267799]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  420.272950]  ? pvclock_read_flags+0x160/0x160
[  420.277450]  ? lapic_next_event+0x5a/0x90
[  420.281604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.287172]  ? kvm_clock_read+0x18/0x30
[  420.291170]  ? kvm_sched_clock_read+0x9/0x20
[  420.295584]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.301126]  ? check_preemption_disabled+0x48/0x280
[  420.306185]  irq_exit+0x17f/0x1c0
[  420.309661]  smp_apic_timer_interrupt+0x1cb/0x760
[  420.314506]  ? smp_reschedule_interrupt+0x109/0x650
[  420.319538]  ? smp_call_function_single_interrupt+0x650/0x650
[  420.325426]  ? interrupt_entry+0xb5/0xc0
[  420.329500]  ? trace_hardirqs_off_caller+0xbb/0x310
[  420.334520]  ? trace_hardirqs_off_caller+0xbb/0x310
[  420.339554]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.344401]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.349480]  ? trace_hardirqs_on_caller+0x310/0x310
[  420.354501]  ? task_prio+0x50/0x50
[  420.358049]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.363591]  ? check_preemption_disabled+0x48/0x280
[  420.368629]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  420.373484]  apic_timer_interrupt+0xf/0x20
[  420.377717]  </IRQ>
[  420.379960] RIP: 0010:lock_acquire+0x268/0x520
[  420.384548] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  420.403458] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  420.411180] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  420.418453] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  420.425722] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  420.432995] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  420.440267] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  420.447579]  ? lruvec_lru_size+0x450/0x450
[  420.451819]  ? kasan_check_read+0x11/0x20
[  420.455980]  ? lock_release+0xa00/0xa00
[  420.459980]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  420.464940]  down_read_trylock+0xda/0x140
[  420.469090]  ? shrink_slab+0x207/0x8c0
[  420.472986]  ? downgrade_write+0x270/0x270
[  420.477265]  shrink_slab+0x207/0x8c0
[  420.481089]  ? shrink_active_list+0x1f00/0x1f00
[  420.485784]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  420.491415]  ? __lock_acquire+0x62f/0x4c20
[  420.495657]  ? percpu_ref_get_many+0x240/0x240
[  420.500277]  ? print_usage_bug+0xc0/0xc0
[  420.504349]  shrink_node+0x431/0x16b0
[  420.508169]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  420.513516]  ? shrink_node_memcg+0x18f0/0x18f0
[  420.518156]  ? kvm_clock_read+0x18/0x30
[  420.522162]  ? ktime_get+0x2c1/0x400
[  420.525886]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  420.530418]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  420.535957]  ? __cpuset_node_allowed+0x19b/0x660
[  420.540717]  ? mark_held_locks+0x130/0x130
[  420.544970]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  420.550685]  ? zap_class+0x640/0x640
[  420.554425]  do_try_to_free_pages+0x3e7/0x1290
[  420.559020]  ? zap_class+0x640/0x640
[  420.562783]  ? shrink_node+0x16b0/0x16b0
[  420.566909]  ? __lock_is_held+0xb5/0x140
[  420.570991]  try_to_free_pages+0x4d0/0xb90
[  420.575234]  ? do_try_to_free_pages+0x1290/0x1290
[  420.580095]  ? lock_acquire+0x1ed/0x520
[  420.584071]  ? set_page_refcounted+0x280/0x280
[  420.588661]  ? lock_release+0xa00/0xa00
[  420.592644]  ? _raw_spin_unlock_irq+0x60/0x80
[  420.597156]  ? psi_memstall_enter+0x240/0x2b0
[  420.601659]  ? psi_memstall_tick+0x230/0x230
[  420.606085]  __alloc_pages_slowpath+0xa48/0x2de0
[  420.610876]  ? warn_alloc+0x120/0x120
[  420.614690]  ? mark_held_locks+0x130/0x130
[  420.618944]  ? find_get_entry+0xaae/0x1120
[  420.623193]  ? filemap_map_pages+0x1a20/0x1a20
[  420.627784]  ? zap_class+0x640/0x640
[  420.631515]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.637061]  ? check_preemption_disabled+0x48/0x280
[  420.642081]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.647625]  ? should_fail+0x22d/0xd01
[  420.651525]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  420.656635]  ? zap_class+0x640/0x640
[  420.660378]  ? __lock_is_held+0xb5/0x140
[  420.664452]  ? mark_held_locks+0x130/0x130
[  420.668694]  ? lock_release+0xa00/0xa00
[  420.672674]  ? perf_trace_sched_process_exec+0x860/0x860
[  420.678127]  ? xa_load+0x2ba/0x460
[  420.681679]  ? lock_downgrade+0x900/0x900
[  420.685835]  ? __might_sleep+0x95/0x190
[  420.689818]  __alloc_pages_nodemask+0xad8/0xea0
[  420.694500]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  420.699524]  ? __page_cache_alloc+0x191/0x5c0
[  420.704020]  ? xa_load+0x2e1/0x460
[  420.707561]  ? xa_clear_mark+0x40/0x40
[  420.711471]  ? zap_class+0x640/0x640
[  420.715198]  ? zap_class+0x640/0x640
[  420.718920]  ? zap_class+0x640/0x640
[  420.722639]  ? __do_page_cache_readahead+0x663/0x810
[  420.727748]  ? find_held_lock+0x36/0x1c0
[  420.731841]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  420.737392]  alloc_pages_current+0x173/0x350
[  420.741815]  __page_cache_alloc+0x38c/0x5c0
[  420.746137]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.751082]  ? kasan_check_read+0x11/0x20
[  420.755236]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.760533]  ? generic_perform_write+0x6a0/0x6a0
[  420.765293]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.770835]  ? check_preemption_disabled+0x48/0x280
[  420.775867]  filemap_fault+0x1595/0x25f0
[  420.779956]  ? __lock_page_or_retry+0xa00/0xa00
[  420.784636]  ? mark_held_locks+0x130/0x130
[  420.788885]  ? filemap_map_pages+0xd6b/0x1a20
[  420.793389]  ? lock_downgrade+0x900/0x900
[  420.797540]  ? check_preemption_disabled+0x48/0x280
[  420.802574]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.807508]  ? kasan_check_read+0x11/0x20
[  420.811658]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.816943]  ? rcu_softirq_qs+0x20/0x20
[  420.820942]  ? filemap_map_pages+0xd92/0x1a20
[  420.825455]  ? find_get_entries_tag+0x1400/0x1400
[  420.830307]  ? debug_object_destroy+0x2b0/0x2b0
[  420.834982]  ? lock_pi_update_atomic+0x150/0x150
[  420.839741]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.845295]  ? lock_acquire+0x1ed/0x520
[  420.849296]  ? ext4_filemap_fault+0x7a/0xad
[  420.853629]  ? lock_release+0xa00/0xa00
[  420.857609]  ? perf_trace_sched_process_exec+0x860/0x860
[  420.863067]  ? print_usage_bug+0xc0/0xc0
[  420.867134]  ? print_usage_bug+0xc0/0xc0
[  420.871223]  ? down_read+0x8d/0x120
[  420.874847]  ? ext4_filemap_fault+0x7a/0xad
[  420.879183]  ? __down_interruptible+0x700/0x700
[  420.883868]  ext4_filemap_fault+0x82/0xad
[  420.888035]  __do_fault+0x100/0x6b0
[  420.891670]  ? find_held_lock+0x36/0x1c0
[  420.895738]  ? pmd_devmap_trans_unstable+0x220/0x220
[  420.900857]  ? mark_held_locks+0x130/0x130
[  420.905095]  ? mark_held_locks+0x130/0x130
[  420.909340]  ? kasan_check_read+0x11/0x20
[  420.913492]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  420.919051]  __handle_mm_fault+0x3ea0/0x5be0
[  420.923464]  ? perf_trace_lock+0x7a0/0x7a0
[  420.927715]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  420.932566]  ? __switch_to_asm+0x34/0x70
[  420.936640]  ? __switch_to_asm+0x34/0x70
[  420.940717]  ? zap_class+0x640/0x640
[  420.944445]  ? zap_class+0x640/0x640
[  420.948389]  ? __x64_sys_futex+0x53e/0x6a0
[  420.952632]  ? find_held_lock+0x36/0x1c0
[  420.956706]  ? handle_mm_fault+0x42a/0xc70
[  420.960950]  ? lock_downgrade+0x900/0x900
[  420.965113]  ? check_preemption_disabled+0x48/0x280
[  420.970153]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  420.975087]  ? kasan_check_read+0x11/0x20
[  420.979239]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  420.984518]  ? rcu_softirq_qs+0x20/0x20
[  420.988497]  ? trace_hardirqs_off_caller+0x310/0x310
[  420.993608]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  420.999158]  ? sync_mm_rss+0x9a/0x1c0
[  421.002965]  handle_mm_fault+0x54f/0xc70
[  421.007033]  ? __handle_mm_fault+0x5be0/0x5be0
[  421.011640]  ? find_vma+0x34/0x190
[  421.015219]  __do_page_fault+0x5e8/0xe60
[  421.019288]  ? trace_hardirqs_off+0xb8/0x310
[  421.023713]  do_page_fault+0xf2/0x7e0
[  421.027551]  ? vmalloc_sync_all+0x30/0x30
[  421.031704]  ? error_entry+0x70/0xd0
[  421.035424]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.040449]  ? trace_hardirqs_on_caller+0xc0/0x310
[  421.045411]  ? syscall_return_slowpath+0x5e0/0x5e0
[  421.050345]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.055197]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.060217]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  421.065678]  ? prepare_exit_to_usermode+0x291/0x3b0
[  421.070699]  ? page_fault+0x8/0x30
[  421.074246]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.079117]  ? page_fault+0x8/0x30
[  421.083212]  page_fault+0x1e/0x30
[  421.086676] RIP: 0033:0x45ddf3
[  421.089902] Code: Bad RIP value.
[  421.093270] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  421.098646] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  421.105929] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  421.113206] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  421.120473] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  421.127738] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  421.135034] warn_alloc_show_mem: 1 callbacks suppressed
[  421.135046] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  421.135048] Mem-Info:
[  421.135078] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  421.135078]  active_file:17 inactive_file:17 isolated_file:0
[  421.135078]  unevictable:0 dirty:4 writeback:0 unstable:0
[  421.135078]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  421.135078]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  421.135078]  free:13550 free_pcp:124 free_cma:0
[  421.140426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  421.147708] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  421.150106] Call Trace:
[  421.183187] 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
[  421.192536]  <IRQ>
[  421.220335] lowmem_reserve[]: 0 2818 6321 6321
[  421.222950]  dump_stack+0x244/0x39d
[  421.249054] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  421.251224]  ? dump_stack_print_info.cold.1+0x20/0x20
[  421.255788] lowmem_reserve[]: 0 0 3503 3503
[  421.259434]  warn_alloc.cold.116+0xb7/0x1bd
[  421.286748] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  421.291960]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  421.296253] lowmem_reserve[]: 0 0 0 0
[  421.300577]  ? lock_downgrade+0x900/0x900
[  421.329471] 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
[  421.334356]  ? trace_hardirqs_off+0xb8/0x310
[  421.338114] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  421.342258]  ? trace_hardirqs_off+0xb8/0x310
[  421.355766] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  421.360203]  __alloc_pages_slowpath+0x2651/0x2de0
[  421.374928] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  421.379355]  ? warn_alloc+0x120/0x120
[  421.394055] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  421.398900]  ? print_usage_bug+0xc0/0xc0
[  421.407704] 1360 total pagecache pages
[  421.411504]  ? warn_alloc+0x120/0x120
[  421.420060] 0 pages in swap cache
[  421.424110]  ? warn_alloc+0x120/0x120
[  421.427972] Swap cache stats: add 0, delete 0, find 0/0
[  421.431770]  ? print_usage_bug+0xc0/0xc0
[  421.435195] Free swap  = 0kB
[  421.438998]  ? print_usage_bug+0xc0/0xc0
[  421.444336] Total swap = 0kB
[  421.448395]  ? __lock_acquire+0x62f/0x4c20
[  421.451387] 1965979 pages RAM
[  421.455445]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.458436] 0 pages HighMem/MovableOnly
[  421.462666]  ? should_fail+0x22d/0xd01
[  421.465743] 342854 pages reserved
[  421.471277]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  421.475223] 0 pages cma reserved
[  421.479112]  ? __lock_acquire+0x62f/0x4c20
[  421.482654] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  421.487668]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  421.491109] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  421.495256]  ? __lock_acquire+0x62f/0x4c20
[  421.501720] syz-fuzzer cpuset=/ mems_allowed=0
[  421.506820]  ? should_fail+0x22d/0xd01
[  421.529709]  ? find_held_lock+0x36/0x1c0
[  421.533781]  ? mark_held_locks+0x130/0x130
[  421.538025]  ? mark_held_locks+0x130/0x130
[  421.542276]  ? zap_class+0x640/0x640
[  421.545992]  ? zap_class+0x640/0x640
[  421.549709]  ? print_usage_bug+0xc0/0xc0
[  421.553783]  ? do_raw_spin_unlock+0xa7/0x330
[  421.558207]  ? zap_class+0x640/0x640
[  421.561928]  ? print_usage_bug+0xc0/0xc0
[  421.565990]  ? wq_watchdog_touch+0x9c/0xfe
[  421.570234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.575776]  ? check_preemption_disabled+0x48/0x280
[  421.580806]  ? __lock_is_held+0xb5/0x140
[  421.584877]  __alloc_pages_nodemask+0xad8/0xea0
[  421.589549]  ? zap_class+0x640/0x640
[  421.593268]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  421.598296]  ? find_held_lock+0x36/0x1c0
[  421.602371]  ? ____cache_alloc_node+0x1c7/0x1e0
[  421.607047]  ? lock_downgrade+0x900/0x900
[  421.611203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.616764]  cache_grow_begin+0xa5/0x8c0
[  421.620828]  ? do_raw_spin_unlock+0xa7/0x330
[  421.625247]  fallback_alloc+0x204/0x2e0
[  421.629229]  ____cache_alloc_node+0x1c7/0x1e0
[  421.633730]  kmem_cache_alloc_node+0xe3/0x730
[  421.638258]  ? ipv6_get_ifaddr+0x42e/0x620
[  421.642505]  __alloc_skb+0x119/0x770
[  421.646224]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.651508]  ? netdev_alloc_frag+0x1f0/0x1f0
[  421.655920]  ? lock_downgrade+0x900/0x900
[  421.660084]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.665624]  ? refcount_sub_and_test_checked+0x203/0x310
[  421.671084]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  421.676539]  ? addrconf_rs_timer+0x690/0x690
[  421.680969]  ndisc_alloc_skb+0x144/0x340
[  421.685043]  ndisc_send_rs+0x331/0x6e0
[  421.688946]  addrconf_rs_timer+0x314/0x690
[  421.693194]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.697449]  call_timer_fn+0x272/0x920
[  421.701338]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.705578]  ? process_timeout+0x40/0x40
[  421.709668]  ? __run_timers+0x7da/0xc70
[  421.713646]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.718138]  ? _raw_spin_unlock_irq+0x27/0x80
[  421.722643]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.726886]  ? lockdep_hardirqs_on+0x296/0x5b0
[  421.731472]  ? trace_hardirqs_on+0xbd/0x310
[  421.735811]  ? kasan_check_read+0x11/0x20
[  421.739957]  ? __run_timers+0x7da/0xc70
[  421.743931]  ? trace_hardirqs_off_caller+0x310/0x310
[  421.749047]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.753291]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  421.757531]  __run_timers+0x7e5/0xc70
[  421.761343]  ? timer_fixup_init+0x70/0x70
[  421.765494]  ? kasan_check_read+0x11/0x20
[  421.769658]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  421.774934]  ? rcu_softirq_qs+0x20/0x20
[  421.778917]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.784460]  ? check_preemption_disabled+0x48/0x280
[  421.789510]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  421.794305]  ? retint_kernel+0x2d/0x2d
[  421.798216]  ? trace_hardirqs_on_caller+0xc0/0x310
[  421.803160]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  421.807919]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  421.813378]  ? zap_class+0x640/0x640
[  421.817109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.822671]  ? check_preemption_disabled+0x48/0x280
[  421.827714]  ? __lock_is_held+0xb5/0x140
[  421.831776]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.837321]  ? check_preemption_disabled+0x48/0x280
[  421.842346]  run_timer_softirq+0x52/0xb0
[  421.846422]  ? rcu_read_lock_sched_held+0x14f/0x180
[  421.851460]  __do_softirq+0x308/0xb7e
[  421.855270]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  421.859771]  ? lock_downgrade+0x900/0x900
[  421.863930]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  421.869044]  ? pvclock_read_flags+0x160/0x160
[  421.873557]  ? lapic_next_event+0x5a/0x90
[  421.877711]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.883262]  ? kvm_clock_read+0x18/0x30
[  421.887248]  ? kvm_sched_clock_read+0x9/0x20
[  421.891663]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  421.897208]  ? check_preemption_disabled+0x48/0x280
[  421.902236]  irq_exit+0x17f/0x1c0
[  421.905697]  smp_apic_timer_interrupt+0x1cb/0x760
[  421.910544]  ? smp_reschedule_interrupt+0x109/0x650
[  421.915565]  ? smp_call_function_single_interrupt+0x650/0x650
[  421.921458]  ? interrupt_entry+0xb5/0xc0
[  421.925526]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.930545]  ? trace_hardirqs_off_caller+0xbb/0x310
[  421.935584]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.940449]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.945469]  ? trace_hardirqs_on_caller+0x310/0x310
[  421.950488]  ? task_prio+0x50/0x50
[  421.954034]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  421.959583]  ? check_preemption_disabled+0x48/0x280
[  421.964613]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  421.969471]  apic_timer_interrupt+0xf/0x20
[  421.973734]  </IRQ>
[  421.975978] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  421.981014] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  421.999927] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  422.007647] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  422.014920] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  422.022194] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  422.029466] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  422.036737] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  422.044058]  skb_clone+0x1bb/0x500
[  422.047602]  ? skb_split+0x11e0/0x11e0
[  422.051588]  ? preempt_notifier_register+0x200/0x200
[  422.056698]  ? __switch_to_asm+0x34/0x70
[  422.060785]  ? __switch_to_asm+0x34/0x70
[  422.064867]  ? __switch_to_asm+0x40/0x70
[  422.068929]  ? __switch_to_asm+0x34/0x70
[  422.072988]  ? __switch_to_asm+0x40/0x70
[  422.077051]  ? __switch_to_asm+0x40/0x70
[  422.081122]  ? __switch_to_asm+0x34/0x70
[  422.085193]  ? __switch_to_asm+0x34/0x70
[  422.089253]  ? __switch_to_asm+0x40/0x70
[  422.093315]  ? __switch_to_asm+0x34/0x70
[  422.097385]  bpf_clone_redirect+0xb9/0x490
[  422.101640]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  422.106662]  ? __sched_text_start+0x8/0x8
[  422.110812]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  422.115592]  ? find_held_lock+0x36/0x1c0
[  422.119664]  ? lock_acquire+0x1ed/0x520
[  422.123644]  ? bpf_test_run+0x3ee/0x7a0
[  422.127626]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.133176]  ? check_preemption_disabled+0x48/0x280
[  422.138208]  ? kasan_check_read+0x11/0x20
[  422.142357]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.147638]  ? rcu_softirq_qs+0x20/0x20
[  422.151619]  ? preempt_schedule+0x4d/0x60
[  422.155774]  ? ___preempt_schedule+0x16/0x18
[  422.160234]  ? bpf_test_run+0x271/0x7a0
[  422.164232]  ? netlink_diag_dump+0x2a0/0x2a0
[  422.168654]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.174196]  ? bpf_test_init.isra.10+0x70/0x100
[  422.178873]  ? bpf_prog_test_run_skb+0x762/0xd60
[  422.183659]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  422.188513]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  422.194055]  ? fput+0x130/0x1a0
[  422.197341]  ? __bpf_prog_get+0x9b/0x290
[  422.201408]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  422.206259]  ? bpf_prog_test_run+0x130/0x1a0
[  422.210673]  ? __x64_sys_bpf+0x3d8/0x520
[  422.214737]  ? bpf_prog_get+0x20/0x20
[  422.218561]  ? do_syscall_64+0x1b9/0x820
[  422.222624]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  422.227995]  ? syscall_return_slowpath+0x5e0/0x5e0
[  422.232939]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.237801]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.242820]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  422.247842]  ? prepare_exit_to_usermode+0x291/0x3b0
[  422.252906]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.257763]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  422.263160] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  422.263280] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  422.270128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  422.270137] Call Trace:
[  422.276718] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  422.285982]  <IRQ>
[  422.288551] syz-executor4 cpuset=syz4 mems_allowed=0
[  422.299054]  dump_stack+0x244/0x39d
[  422.309906]  ? dump_stack_print_info.cold.1+0x20/0x20
[  422.315118]  warn_alloc.cold.116+0xb7/0x1bd
[  422.319463]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  422.324315]  ? lock_downgrade+0x900/0x900
[  422.328485]  ? trace_hardirqs_off+0xb8/0x310
[  422.332933]  ? trace_hardirqs_off+0xb8/0x310
[  422.337353]  __alloc_pages_slowpath+0x2651/0x2de0
[  422.342240]  ? warn_alloc+0x120/0x120
[  422.346046]  ? print_usage_bug+0xc0/0xc0
[  422.350115]  ? warn_alloc+0x120/0x120
[  422.353935]  ? warn_alloc+0x120/0x120
[  422.357752]  ? print_usage_bug+0xc0/0xc0
[  422.361817]  ? kvm_clock_read+0x18/0x30
[  422.365797]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  422.370818]  ? print_usage_bug+0xc0/0xc0
[  422.374886]  ? __lock_acquire+0x62f/0x4c20
[  422.379135]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.384698]  ? should_fail+0x22d/0xd01
[  422.388589]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.393872]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.398979]  ? __lock_acquire+0x62f/0x4c20
[  422.403220]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  422.408341]  ? __lock_acquire+0x62f/0x4c20
[  422.412574]  ? should_fail+0x22d/0xd01
[  422.416460]  ? rcu_irq_exit+0x1a2/0x390
[  422.420446]  ? mark_held_locks+0x130/0x130
[  422.424687]  ? mark_held_locks+0x130/0x130
[  422.428935]  ? mark_held_locks+0xc7/0x130
[  422.433089]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  422.438106]  ? zap_class+0x640/0x640
[  422.441821]  ? print_usage_bug+0xc0/0xc0
[  422.445892]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.451445]  ? check_preemption_disabled+0x48/0x280
[  422.456479]  ? __lock_is_held+0xb5/0x140
[  422.460563]  __alloc_pages_nodemask+0xad8/0xea0
[  422.465236]  ? zap_class+0x640/0x640
[  422.468965]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  422.474008]  ? find_held_lock+0x36/0x1c0
[  422.478087]  ? ____cache_alloc_node+0x1c7/0x1e0
[  422.482758]  ? lock_downgrade+0x900/0x900
[  422.486922]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.492466]  cache_grow_begin+0xa5/0x8c0
[  422.496530]  ? do_raw_spin_unlock+0xa7/0x330
[  422.500953]  fallback_alloc+0x204/0x2e0
[  422.504942]  ____cache_alloc_node+0x1c7/0x1e0
[  422.509454]  kmem_cache_alloc_node+0xe3/0x730
[  422.513955]  ? ipv6_get_ifaddr+0x42e/0x620
[  422.518208]  __alloc_skb+0x119/0x770
[  422.521930]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  422.527233]  ? netdev_alloc_frag+0x1f0/0x1f0
[  422.531650]  ? lock_downgrade+0x900/0x900
[  422.535809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.541350]  ? refcount_sub_and_test_checked+0x203/0x310
[  422.546822]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  422.552275]  ? addrconf_rs_timer+0x690/0x690
[  422.556698]  ndisc_alloc_skb+0x144/0x340
[  422.560773]  ndisc_send_rs+0x331/0x6e0
[  422.564678]  addrconf_rs_timer+0x314/0x690
[  422.568943]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.573195]  call_timer_fn+0x272/0x920
[  422.577183]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.581419]  ? process_timeout+0x40/0x40
[  422.585510]  ? mark_held_locks+0xc7/0x130
[  422.589665]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.594180]  ? _raw_spin_unlock_irq+0x27/0x80
[  422.598678]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.602921]  ? lockdep_hardirqs_on+0x296/0x5b0
[  422.607508]  ? trace_hardirqs_on+0xbd/0x310
[  422.611836]  ? kasan_check_read+0x11/0x20
[  422.616001]  ? __run_timers+0x7da/0xc70
[  422.619997]  ? trace_hardirqs_off_caller+0x310/0x310
[  422.625112]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.629359]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  422.633594]  __run_timers+0x7e5/0xc70
[  422.637406]  ? timer_fixup_init+0x70/0x70
[  422.641564]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  422.646582]  ? zap_class+0x640/0x640
[  422.650303]  ? print_usage_bug+0xc0/0xc0
[  422.654372]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  422.659573]  ? find_held_lock+0x36/0x1c0
[  422.663642]  ? zap_class+0x640/0x640
[  422.667364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.672910]  ? check_preemption_disabled+0x48/0x280
[  422.677965]  ? __lock_is_held+0xb5/0x140
[  422.682028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.687570]  ? check_preemption_disabled+0x48/0x280
[  422.692596]  run_timer_softirq+0x52/0xb0
[  422.696665]  ? rcu_read_lock_sched_held+0x14f/0x180
[  422.701683]  __do_softirq+0x308/0xb7e
[  422.705503]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  422.710013]  ? lock_downgrade+0x900/0x900
[  422.714174]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  422.719296]  ? pvclock_read_flags+0x160/0x160
[  422.723800]  ? lapic_next_event+0x5a/0x90
[  422.727969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.733516]  ? kvm_clock_read+0x18/0x30
[  422.737491]  ? kvm_sched_clock_read+0x9/0x20
[  422.741948]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  422.747497]  ? check_preemption_disabled+0x48/0x280
[  422.752531]  irq_exit+0x17f/0x1c0
[  422.756006]  smp_apic_timer_interrupt+0x1cb/0x760
[  422.760855]  ? smp_reschedule_interrupt+0x109/0x650
[  422.765878]  ? smp_call_function_single_interrupt+0x650/0x650
[  422.771764]  ? interrupt_entry+0xb5/0xc0
[  422.775830]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.780861]  ? trace_hardirqs_off_caller+0xbb/0x310
[  422.785880]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.790725]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.795754]  ? trace_hardirqs_on_caller+0x310/0x310
[  422.800775]  ? task_prio+0x50/0x50
[  422.804333]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  422.809879]  ? check_preemption_disabled+0x48/0x280
[  422.814903]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  422.819762]  apic_timer_interrupt+0xf/0x20
[  422.823998]  </IRQ>
[  422.826258] RIP: 0010:lock_acquire+0x268/0x520
[  422.830842] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  422.849751] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  422.857463] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  422.864733] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  422.872006] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  422.879273] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  422.886544] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  422.893855]  ? lruvec_lru_size+0x450/0x450
[  422.898098]  ? kasan_check_read+0x11/0x20
[  422.902254]  ? lock_release+0xa00/0xa00
[  422.906247]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  422.911194]  down_read_trylock+0xda/0x140
[  422.915344]  ? shrink_slab+0x207/0x8c0
[  422.919239]  ? downgrade_write+0x270/0x270
[  422.923502]  shrink_slab+0x207/0x8c0
[  422.927222]  ? shrink_active_list+0x1f00/0x1f00
[  422.931901]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  422.937538]  ? __lock_acquire+0x62f/0x4c20
[  422.941781]  ? percpu_ref_get_many+0x240/0x240
[  422.946385]  ? print_usage_bug+0xc0/0xc0
[  422.950573]  shrink_node+0x431/0x16b0
[  422.954430]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  422.959737]  ? shrink_node_memcg+0x18f0/0x18f0
[  422.964330]  ? kvm_clock_read+0x18/0x30
[  422.968312]  ? ktime_get+0x2c1/0x400
[  422.972032]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  422.976532]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  422.982073]  ? __cpuset_node_allowed+0x19b/0x660
[  422.986831]  ? mark_held_locks+0x130/0x130
[  422.991087]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  422.996802]  ? zap_class+0x640/0x640
[  423.000531]  do_try_to_free_pages+0x3e7/0x1290
[  423.005131]  ? zap_class+0x640/0x640
[  423.008882]  ? shrink_node+0x16b0/0x16b0
[  423.012956]  ? __lock_is_held+0xb5/0x140
[  423.017032]  try_to_free_pages+0x4d0/0xb90
[  423.021278]  ? do_try_to_free_pages+0x1290/0x1290
[  423.026162]  ? lock_acquire+0x1ed/0x520
[  423.030164]  ? set_page_refcounted+0x280/0x280
[  423.034758]  ? lock_release+0xa00/0xa00
[  423.038736]  ? _raw_spin_unlock_irq+0x60/0x80
[  423.043237]  ? psi_memstall_enter+0x240/0x2b0
[  423.047750]  ? psi_memstall_tick+0x230/0x230
[  423.052185]  __alloc_pages_slowpath+0xa48/0x2de0
[  423.056984]  ? warn_alloc+0x120/0x120
[  423.060789]  ? mark_held_locks+0x130/0x130
[  423.065032]  ? find_get_entry+0xaae/0x1120
[  423.069280]  ? filemap_map_pages+0x1a20/0x1a20
[  423.073874]  ? zap_class+0x640/0x640
[  423.077605]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.083665]  ? check_preemption_disabled+0x48/0x280
[  423.088684]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.094236]  ? should_fail+0x22d/0xd01
[  423.098133]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.103252]  ? zap_class+0x640/0x640
[  423.106997]  ? __lock_is_held+0xb5/0x140
[  423.111072]  ? mark_held_locks+0x130/0x130
[  423.115324]  ? lock_release+0xa00/0xa00
[  423.119302]  ? perf_trace_sched_process_exec+0x860/0x860
[  423.124757]  ? xa_load+0x2ba/0x460
[  423.128304]  ? lock_downgrade+0x900/0x900
[  423.132463]  ? __might_sleep+0x95/0x190
[  423.136445]  __alloc_pages_nodemask+0xad8/0xea0
[  423.141125]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  423.146166]  ? __page_cache_alloc+0x191/0x5c0
[  423.150666]  ? xa_load+0x2e1/0x460
[  423.154211]  ? xa_clear_mark+0x40/0x40
[  423.158104]  ? zap_class+0x640/0x640
[  423.161830]  ? zap_class+0x640/0x640
[  423.165547]  ? zap_class+0x640/0x640
[  423.169265]  ? __do_page_cache_readahead+0x663/0x810
[  423.174375]  ? find_held_lock+0x36/0x1c0
[  423.178444]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  423.183998]  alloc_pages_current+0x173/0x350
[  423.188417]  __page_cache_alloc+0x38c/0x5c0
[  423.192743]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.197677]  ? kasan_check_read+0x11/0x20
[  423.201828]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.207111]  ? generic_perform_write+0x6a0/0x6a0
[  423.211881]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.217423]  ? check_preemption_disabled+0x48/0x280
[  423.222469]  filemap_fault+0x1595/0x25f0
[  423.226551]  ? __lock_page_or_retry+0xa00/0xa00
[  423.231231]  ? mark_held_locks+0x130/0x130
[  423.235480]  ? filemap_map_pages+0xd6b/0x1a20
[  423.239981]  ? lock_downgrade+0x900/0x900
[  423.244154]  ? check_preemption_disabled+0x48/0x280
[  423.249187]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.254119]  ? kasan_check_read+0x11/0x20
[  423.258278]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.263558]  ? rcu_softirq_qs+0x20/0x20
[  423.267552]  ? filemap_map_pages+0xd92/0x1a20
[  423.272094]  ? find_get_entries_tag+0x1400/0x1400
[  423.276945]  ? debug_object_destroy+0x2b0/0x2b0
[  423.281620]  ? lock_pi_update_atomic+0x150/0x150
[  423.286396]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.291966]  ? lock_acquire+0x1ed/0x520
[  423.295945]  ? ext4_filemap_fault+0x7a/0xad
[  423.300273]  ? lock_release+0xa00/0xa00
[  423.304262]  ? perf_trace_sched_process_exec+0x860/0x860
[  423.309717]  ? print_usage_bug+0xc0/0xc0
[  423.313788]  ? print_usage_bug+0xc0/0xc0
[  423.317863]  ? down_read+0x8d/0x120
[  423.321488]  ? ext4_filemap_fault+0x7a/0xad
[  423.325818]  ? __down_interruptible+0x700/0x700
[  423.330520]  ext4_filemap_fault+0x82/0xad
[  423.334676]  __do_fault+0x100/0x6b0
[  423.338304]  ? find_held_lock+0x36/0x1c0
[  423.342369]  ? pmd_devmap_trans_unstable+0x220/0x220
[  423.347477]  ? mark_held_locks+0x130/0x130
[  423.351727]  ? mark_held_locks+0x130/0x130
[  423.356014]  ? kasan_check_read+0x11/0x20
[  423.360179]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.365728]  __handle_mm_fault+0x3ea0/0x5be0
[  423.370152]  ? perf_trace_lock+0x7a0/0x7a0
[  423.374401]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  423.379269]  ? __switch_to_asm+0x34/0x70
[  423.383327]  ? __switch_to_asm+0x34/0x70
[  423.387403]  ? zap_class+0x640/0x640
[  423.391118]  ? zap_class+0x640/0x640
[  423.394846]  ? __x64_sys_futex+0x53e/0x6a0
[  423.399089]  ? find_held_lock+0x36/0x1c0
[  423.403209]  ? handle_mm_fault+0x42a/0xc70
[  423.407474]  ? lock_downgrade+0x900/0x900
[  423.411621]  ? check_preemption_disabled+0x48/0x280
[  423.416639]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  423.421585]  ? kasan_check_read+0x11/0x20
[  423.425737]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.431016]  ? rcu_softirq_qs+0x20/0x20
[  423.434992]  ? trace_hardirqs_off_caller+0x310/0x310
[  423.440098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  423.445636]  ? sync_mm_rss+0x9a/0x1c0
[  423.449444]  handle_mm_fault+0x54f/0xc70
[  423.453542]  ? __handle_mm_fault+0x5be0/0x5be0
[  423.458169]  ? find_vma+0x34/0x190
[  423.461717]  __do_page_fault+0x5e8/0xe60
[  423.465794]  ? trace_hardirqs_off+0xb8/0x310
[  423.470217]  do_page_fault+0xf2/0x7e0
[  423.474031]  ? vmalloc_sync_all+0x30/0x30
[  423.478202]  ? error_entry+0x70/0xd0
[  423.481937]  ? trace_hardirqs_off_caller+0xbb/0x310
[  423.486954]  ? trace_hardirqs_on_caller+0xc0/0x310
[  423.491899]  ? syscall_return_slowpath+0x5e0/0x5e0
[  423.496842]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.501716]  ? trace_hardirqs_on_caller+0x310/0x310
[  423.506732]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  423.512191]  ? prepare_exit_to_usermode+0x291/0x3b0
[  423.517208]  ? page_fault+0x8/0x30
[  423.520754]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  423.525609]  ? page_fault+0x8/0x30
[  423.529159]  page_fault+0x1e/0x30
[  423.532613] RIP: 0033:0x45ddf3
[  423.535822] Code: Bad RIP value.
[  423.539188] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  423.544551] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  423.551831] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  423.559101] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  423.566365] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  423.573637] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  423.580943] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  423.580949] warn_alloc_show_mem: 1 callbacks suppressed
[  423.580956] Mem-Info:
[  423.588262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  423.593633] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  423.593633]  active_file:17 inactive_file:17 isolated_file:0
[  423.593633]  unevictable:0 dirty:4 writeback:0 unstable:0
[  423.593633]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  423.593633]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  423.593633]  free:13550 free_pcp:124 free_cma:0
[  423.596006] Call Trace:
[  423.605397] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  423.638447]  <IRQ>
[  423.641039] 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
[  423.668832]  dump_stack+0x244/0x39d
[  423.670960] lowmem_reserve[]: 0 2818 6321 6321
[  423.697089]  ? dump_stack_print_info.cold.1+0x20/0x20
[  423.700702] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  423.705287]  warn_alloc.cold.116+0xb7/0x1bd
[  423.710440] lowmem_reserve[]: 0 0 3503 3503
[  423.737812]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  423.742104] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  423.746422]  ? lock_downgrade+0x900/0x900
[  423.751230] lowmem_reserve[]: 0 0 0 0
[  423.780174]  ? trace_hardirqs_off+0xb8/0x310
[  423.784299] 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
[  423.788099]  ? trace_hardirqs_off+0xb8/0x310
[  423.792481] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  423.806018]  __alloc_pages_slowpath+0x2651/0x2de0
[  423.810401] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  423.825177]  ? warn_alloc+0x120/0x120
[  423.829978] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  423.844709]  ? print_usage_bug+0xc0/0xc0
[  423.848505] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  423.857333]  ? warn_alloc+0x120/0x120
[  423.861372] 1360 total pagecache pages
[  423.869940]  ? warn_alloc+0x120/0x120
[  423.873739] 0 pages in swap cache
[  423.877615]  ? print_usage_bug+0xc0/0xc0
[  423.881394] Swap cache stats: add 0, delete 0, find 0/0
[  423.884840]  ? kvm_clock_read+0x18/0x30
[  423.888877] Free swap  = 0kB
[  423.894240]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  423.898186] Total swap = 0kB
[  423.901210]  ? print_usage_bug+0xc0/0xc0
[  423.906220] 1965979 pages RAM
[  423.909233]  ? __lock_acquire+0x62f/0x4c20
[  423.913296] 0 pages HighMem/MovableOnly
[  423.916404]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  423.920611] 342854 pages reserved
[  423.924583]  ? should_fail+0x22d/0xd01
[  423.930092] 0 pages cma reserved
[  423.933550]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  423.937495] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  423.940781]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.946136] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  423.952531]  ? __lock_acquire+0x62f/0x4c20
[  423.957607] syz-fuzzer cpuset=/ mems_allowed=0
[  423.967828]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  423.981732]  ? __lock_acquire+0x62f/0x4c20
[  423.985972]  ? should_fail+0x22d/0xd01
[  423.989863]  ? rcu_irq_exit+0x1a2/0x390
[  423.993852]  ? mark_held_locks+0x130/0x130
[  423.998111]  ? mark_held_locks+0x130/0x130
[  424.002363]  ? mark_held_locks+0xc7/0x130
[  424.006528]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  424.011557]  ? zap_class+0x640/0x640
[  424.015273]  ? print_usage_bug+0xc0/0xc0
[  424.019386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.024934]  ? check_preemption_disabled+0x48/0x280
[  424.029980]  ? __lock_is_held+0xb5/0x140
[  424.034048]  __alloc_pages_nodemask+0xad8/0xea0
[  424.038759]  ? zap_class+0x640/0x640
[  424.042479]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  424.047506]  ? find_held_lock+0x36/0x1c0
[  424.051579]  ? ____cache_alloc_node+0x1c7/0x1e0
[  424.056253]  ? lock_downgrade+0x900/0x900
[  424.060411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.065977]  cache_grow_begin+0xa5/0x8c0
[  424.070053]  ? do_raw_spin_unlock+0xa7/0x330
[  424.074472]  fallback_alloc+0x204/0x2e0
[  424.078456]  ____cache_alloc_node+0x1c7/0x1e0
[  424.082957]  kmem_cache_alloc_node+0xe3/0x730
[  424.087459]  ? ipv6_get_ifaddr+0x42e/0x620
[  424.091708]  __alloc_skb+0x119/0x770
[  424.095427]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.100711]  ? netdev_alloc_frag+0x1f0/0x1f0
[  424.105123]  ? lock_downgrade+0x900/0x900
[  424.109290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.114830]  ? refcount_sub_and_test_checked+0x203/0x310
[  424.120285]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  424.125742]  ? addrconf_rs_timer+0x690/0x690
[  424.130172]  ndisc_alloc_skb+0x144/0x340
[  424.134241]  ndisc_send_rs+0x331/0x6e0
[  424.138161]  addrconf_rs_timer+0x314/0x690
[  424.142438]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.146701]  call_timer_fn+0x272/0x920
[  424.150591]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.154829]  ? process_timeout+0x40/0x40
[  424.158910]  ? __run_timers+0x7da/0xc70
[  424.162901]  ? _raw_spin_unlock_irq+0x27/0x80
[  424.167422]  ? _raw_spin_unlock_irq+0x27/0x80
[  424.171919]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.176194]  ? lockdep_hardirqs_on+0x296/0x5b0
[  424.180801]  ? trace_hardirqs_on+0xbd/0x310
[  424.185126]  ? kasan_check_read+0x11/0x20
[  424.189284]  ? __run_timers+0x7da/0xc70
[  424.193278]  ? trace_hardirqs_off_caller+0x310/0x310
[  424.198384]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.202653]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  424.206888]  __run_timers+0x7e5/0xc70
[  424.210697]  ? timer_fixup_init+0x70/0x70
[  424.214848]  ? kasan_check_read+0x11/0x20
[  424.218998]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.224274]  ? rcu_softirq_qs+0x20/0x20
[  424.228252]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.233793]  ? check_preemption_disabled+0x48/0x280
[  424.238816]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  424.243594]  ? retint_kernel+0x2d/0x2d
[  424.247486]  ? trace_hardirqs_on_caller+0xc0/0x310
[  424.252428]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  424.257190]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  424.262641]  ? zap_class+0x640/0x640
[  424.266364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.271906]  ? check_preemption_disabled+0x48/0x280
[  424.276930]  ? __lock_is_held+0xb5/0x140
[  424.280992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.286529]  ? check_preemption_disabled+0x48/0x280
[  424.291554]  run_timer_softirq+0x52/0xb0
[  424.295632]  ? rcu_read_lock_sched_held+0x14f/0x180
[  424.300650]  __do_softirq+0x308/0xb7e
[  424.304474]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  424.308971]  ? lock_downgrade+0x900/0x900
[  424.313125]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  424.318246]  ? pvclock_read_flags+0x160/0x160
[  424.322748]  ? lapic_next_event+0x5a/0x90
[  424.326916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.332477]  ? kvm_clock_read+0x18/0x30
[  424.336468]  ? kvm_sched_clock_read+0x9/0x20
[  424.340885]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.346430]  ? check_preemption_disabled+0x48/0x280
[  424.351459]  irq_exit+0x17f/0x1c0
[  424.354917]  smp_apic_timer_interrupt+0x1cb/0x760
[  424.359778]  ? smp_reschedule_interrupt+0x109/0x650
[  424.364798]  ? smp_call_function_single_interrupt+0x650/0x650
[  424.370681]  ? interrupt_entry+0xb5/0xc0
[  424.374746]  ? trace_hardirqs_off_caller+0xbb/0x310
[  424.379778]  ? trace_hardirqs_off_caller+0xbb/0x310
[  424.384796]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.389646]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.394661]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.399677]  ? task_prio+0x50/0x50
[  424.403220]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.408789]  ? check_preemption_disabled+0x48/0x280
[  424.413811]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.418671]  apic_timer_interrupt+0xf/0x20
[  424.422906]  </IRQ>
[  424.425157] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  424.430099] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  424.448998] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  424.456710] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  424.463991] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  424.471259] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  424.478524] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  424.485791] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  424.493113]  skb_clone+0x1bb/0x500
[  424.496668]  ? skb_split+0x11e0/0x11e0
[  424.500562]  ? preempt_notifier_register+0x200/0x200
[  424.505666]  ? __switch_to_asm+0x34/0x70
[  424.509728]  ? __switch_to_asm+0x34/0x70
[  424.513785]  ? __switch_to_asm+0x40/0x70
[  424.517842]  ? __switch_to_asm+0x34/0x70
[  424.521910]  ? __switch_to_asm+0x40/0x70
[  424.526001]  ? __switch_to_asm+0x40/0x70
[  424.530061]  ? __switch_to_asm+0x34/0x70
[  424.534122]  ? __switch_to_asm+0x34/0x70
[  424.538189]  ? __switch_to_asm+0x40/0x70
[  424.542246]  ? __switch_to_asm+0x34/0x70
[  424.546316]  bpf_clone_redirect+0xb9/0x490
[  424.550561]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  424.555587]  ? __sched_text_start+0x8/0x8
[  424.559740]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  424.564511]  ? find_held_lock+0x36/0x1c0
[  424.568602]  ? lock_acquire+0x1ed/0x520
[  424.572579]  ? bpf_test_run+0x3ee/0x7a0
[  424.576555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.582110]  ? check_preemption_disabled+0x48/0x280
[  424.587179]  ? kasan_check_read+0x11/0x20
[  424.591329]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.596601]  ? rcu_softirq_qs+0x20/0x20
[  424.600591]  ? preempt_schedule+0x4d/0x60
[  424.604757]  ? ___preempt_schedule+0x16/0x18
[  424.609182]  ? bpf_test_run+0x271/0x7a0
[  424.613189]  ? netlink_diag_dump+0x2a0/0x2a0
[  424.617603]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.623140]  ? bpf_test_init.isra.10+0x70/0x100
[  424.627823]  ? bpf_prog_test_run_skb+0x762/0xd60
[  424.632588]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  424.637443]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  424.642987]  ? fput+0x130/0x1a0
[  424.646274]  ? __bpf_prog_get+0x9b/0x290
[  424.650346]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  424.655189]  ? bpf_prog_test_run+0x130/0x1a0
[  424.659603]  ? __x64_sys_bpf+0x3d8/0x520
[  424.663663]  ? bpf_prog_get+0x20/0x20
[  424.667517]  ? do_syscall_64+0x1b9/0x820
[  424.671581]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  424.676966]  ? syscall_return_slowpath+0x5e0/0x5e0
[  424.681908]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.686761]  ? trace_hardirqs_on_caller+0x310/0x310
[  424.691781]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  424.696799]  ? prepare_exit_to_usermode+0x291/0x3b0
[  424.701829]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  424.706686]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  424.712071] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  424.712174] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  424.719007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  424.725606] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  424.734849] Call Trace:
[  424.745334] syz-executor4 cpuset=syz4 mems_allowed=0
[  424.747924]  <IRQ>
[  424.755164]  dump_stack+0x244/0x39d
[  424.758800]  ? dump_stack_print_info.cold.1+0x20/0x20
[  424.764057]  warn_alloc.cold.116+0xb7/0x1bd
[  424.768396]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  424.773244]  ? lock_downgrade+0x900/0x900
[  424.777418]  ? trace_hardirqs_off+0xb8/0x310
[  424.781831]  ? trace_hardirqs_off+0xb8/0x310
[  424.786277]  __alloc_pages_slowpath+0x2651/0x2de0
[  424.791168]  ? warn_alloc+0x120/0x120
[  424.794972]  ? print_usage_bug+0xc0/0xc0
[  424.799039]  ? warn_alloc+0x120/0x120
[  424.802844]  ? warn_alloc+0x120/0x120
[  424.806656]  ? print_usage_bug+0xc0/0xc0
[  424.810720]  ? kvm_clock_read+0x18/0x30
[  424.814700]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  424.819723]  ? print_usage_bug+0xc0/0xc0
[  424.823788]  ? __lock_acquire+0x62f/0x4c20
[  424.828028]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  424.833568]  ? should_fail+0x22d/0xd01
[  424.837459]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.842739]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.847887]  ? __lock_acquire+0x62f/0x4c20
[  424.852140]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  424.857253]  ? __lock_acquire+0x62f/0x4c20
[  424.861489]  ? should_fail+0x22d/0xd01
[  424.865376]  ? rcu_irq_exit+0x1a2/0x390
[  424.869360]  ? mark_held_locks+0x130/0x130
[  424.873617]  ? mark_held_locks+0x130/0x130
[  424.877867]  ? mark_held_locks+0xc7/0x130
[  424.882019]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  424.887055]  ? zap_class+0x640/0x640
[  424.890772]  ? print_usage_bug+0xc0/0xc0
[  424.894838]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.900379]  ? check_preemption_disabled+0x48/0x280
[  424.905425]  ? __lock_is_held+0xb5/0x140
[  424.909510]  __alloc_pages_nodemask+0xad8/0xea0
[  424.914207]  ? zap_class+0x640/0x640
[  424.917967]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  424.923046]  ? find_held_lock+0x36/0x1c0
[  424.927122]  ? ____cache_alloc_node+0x1c7/0x1e0
[  424.931830]  ? lock_downgrade+0x900/0x900
[  424.936008]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.941550]  cache_grow_begin+0xa5/0x8c0
[  424.945614]  ? do_raw_spin_unlock+0xa7/0x330
[  424.950183]  fallback_alloc+0x204/0x2e0
[  424.954175]  ____cache_alloc_node+0x1c7/0x1e0
[  424.958678]  kmem_cache_alloc_node+0xe3/0x730
[  424.963184]  ? ipv6_get_ifaddr+0x42e/0x620
[  424.967432]  __alloc_skb+0x119/0x770
[  424.971155]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  424.976442]  ? netdev_alloc_frag+0x1f0/0x1f0
[  424.980854]  ? lock_downgrade+0x900/0x900
[  424.985035]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  424.990573]  ? refcount_sub_and_test_checked+0x203/0x310
[  424.996026]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  425.001478]  ? addrconf_rs_timer+0x690/0x690
[  425.005902]  ndisc_alloc_skb+0x144/0x340
[  425.009973]  ndisc_send_rs+0x331/0x6e0
[  425.013870]  addrconf_rs_timer+0x314/0x690
[  425.018130]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.022383]  call_timer_fn+0x272/0x920
[  425.026294]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.030530]  ? process_timeout+0x40/0x40
[  425.034613]  ? mark_held_locks+0xc7/0x130
[  425.038769]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.043264]  ? _raw_spin_unlock_irq+0x27/0x80
[  425.047759]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.051995]  ? lockdep_hardirqs_on+0x296/0x5b0
[  425.056582]  ? trace_hardirqs_on+0xbd/0x310
[  425.060905]  ? kasan_check_read+0x11/0x20
[  425.065056]  ? __run_timers+0x7da/0xc70
[  425.069037]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.074153]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.078397]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  425.083126]  __run_timers+0x7e5/0xc70
[  425.086953]  ? timer_fixup_init+0x70/0x70
[  425.091126]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  425.096196]  ? zap_class+0x640/0x640
[  425.099925]  ? print_usage_bug+0xc0/0xc0
[  425.103989]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  425.109206]  ? find_held_lock+0x36/0x1c0
[  425.113303]  ? zap_class+0x640/0x640
[  425.117025]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.122571]  ? check_preemption_disabled+0x48/0x280
[  425.127602]  ? __lock_is_held+0xb5/0x140
[  425.131668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.137222]  ? check_preemption_disabled+0x48/0x280
[  425.142262]  run_timer_softirq+0x52/0xb0
[  425.146324]  ? rcu_read_lock_sched_held+0x14f/0x180
[  425.151346]  __do_softirq+0x308/0xb7e
[  425.155160]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  425.159672]  ? lock_downgrade+0x900/0x900
[  425.163826]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  425.168945]  ? pvclock_read_flags+0x160/0x160
[  425.173440]  ? lapic_next_event+0x5a/0x90
[  425.177589]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.183134]  ? kvm_clock_read+0x18/0x30
[  425.187115]  ? kvm_sched_clock_read+0x9/0x20
[  425.191569]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.197130]  ? check_preemption_disabled+0x48/0x280
[  425.202213]  irq_exit+0x17f/0x1c0
[  425.205671]  smp_apic_timer_interrupt+0x1cb/0x760
[  425.210516]  ? smp_reschedule_interrupt+0x109/0x650
[  425.215535]  ? smp_call_function_single_interrupt+0x650/0x650
[  425.221417]  ? interrupt_entry+0xb5/0xc0
[  425.225492]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.230507]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.235523]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.240393]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.245425]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.250442]  ? task_prio+0x50/0x50
[  425.253986]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.259528]  ? check_preemption_disabled+0x48/0x280
[  425.264553]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.269424]  apic_timer_interrupt+0xf/0x20
[  425.273664]  </IRQ>
[  425.275908] RIP: 0010:lock_acquire+0x268/0x520
[  425.280499] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  425.299402] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  425.307130] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  425.314429] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  425.321696] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  425.328969] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  425.336238] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  425.343539]  ? lruvec_lru_size+0x450/0x450
[  425.347773]  ? kasan_check_read+0x11/0x20
[  425.351957]  ? lock_release+0xa00/0xa00
[  425.355971]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  425.360907]  down_read_trylock+0xda/0x140
[  425.365056]  ? shrink_slab+0x207/0x8c0
[  425.368946]  ? downgrade_write+0x270/0x270
[  425.373193]  shrink_slab+0x207/0x8c0
[  425.376908]  ? shrink_active_list+0x1f00/0x1f00
[  425.381590]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  425.387216]  ? __lock_acquire+0x62f/0x4c20
[  425.391481]  ? percpu_ref_get_many+0x240/0x240
[  425.396079]  ? print_usage_bug+0xc0/0xc0
[  425.400184]  shrink_node+0x431/0x16b0
[  425.403989]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  425.409291]  ? shrink_node_memcg+0x18f0/0x18f0
[  425.413879]  ? kvm_clock_read+0x18/0x30
[  425.417859]  ? ktime_get+0x2c1/0x400
[  425.421612]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  425.426114]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  425.431669]  ? __cpuset_node_allowed+0x19b/0x660
[  425.436425]  ? mark_held_locks+0x130/0x130
[  425.440661]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  425.446371]  ? zap_class+0x640/0x640
[  425.450095]  do_try_to_free_pages+0x3e7/0x1290
[  425.454674]  ? zap_class+0x640/0x640
[  425.458406]  ? shrink_node+0x16b0/0x16b0
[  425.462469]  ? __lock_is_held+0xb5/0x140
[  425.466544]  try_to_free_pages+0x4d0/0xb90
[  425.470788]  ? do_try_to_free_pages+0x1290/0x1290
[  425.475648]  ? lock_acquire+0x1ed/0x520
[  425.479622]  ? set_page_refcounted+0x280/0x280
[  425.484214]  ? lock_release+0xa00/0xa00
[  425.488191]  ? _raw_spin_unlock_irq+0x60/0x80
[  425.492701]  ? psi_memstall_enter+0x240/0x2b0
[  425.497197]  ? psi_memstall_tick+0x230/0x230
[  425.501618]  __alloc_pages_slowpath+0xa48/0x2de0
[  425.506404]  ? warn_alloc+0x120/0x120
[  425.510209]  ? mark_held_locks+0x130/0x130
[  425.514454]  ? find_get_entry+0xaae/0x1120
[  425.518701]  ? filemap_map_pages+0x1a20/0x1a20
[  425.523293]  ? zap_class+0x640/0x640
[  425.527014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.532553]  ? check_preemption_disabled+0x48/0x280
[  425.537579]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.543116]  ? should_fail+0x22d/0xd01
[  425.547014]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  425.552123]  ? zap_class+0x640/0x640
[  425.555872]  ? __lock_is_held+0xb5/0x140
[  425.559977]  ? mark_held_locks+0x130/0x130
[  425.564214]  ? lock_release+0xa00/0xa00
[  425.568192]  ? perf_trace_sched_process_exec+0x860/0x860
[  425.573647]  ? xa_load+0x2ba/0x460
[  425.577191]  ? lock_downgrade+0x900/0x900
[  425.581359]  ? __might_sleep+0x95/0x190
[  425.585344]  __alloc_pages_nodemask+0xad8/0xea0
[  425.590041]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  425.595061]  ? __page_cache_alloc+0x191/0x5c0
[  425.599559]  ? xa_load+0x2e1/0x460
[  425.603115]  ? xa_clear_mark+0x40/0x40
[  425.607018]  ? zap_class+0x640/0x640
[  425.610741]  ? zap_class+0x640/0x640
[  425.614459]  ? zap_class+0x640/0x640
[  425.618184]  ? __do_page_cache_readahead+0x663/0x810
[  425.623294]  ? find_held_lock+0x36/0x1c0
[  425.627376]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  425.632935]  alloc_pages_current+0x173/0x350
[  425.637375]  __page_cache_alloc+0x38c/0x5c0
[  425.641700]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.646645]  ? kasan_check_read+0x11/0x20
[  425.650795]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.656077]  ? generic_perform_write+0x6a0/0x6a0
[  425.660836]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.666393]  ? check_preemption_disabled+0x48/0x280
[  425.671421]  filemap_fault+0x1595/0x25f0
[  425.675498]  ? __lock_page_or_retry+0xa00/0xa00
[  425.680179]  ? mark_held_locks+0x130/0x130
[  425.684429]  ? filemap_map_pages+0xd6b/0x1a20
[  425.688946]  ? lock_downgrade+0x900/0x900
[  425.693113]  ? check_preemption_disabled+0x48/0x280
[  425.698171]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.703102]  ? kasan_check_read+0x11/0x20
[  425.707252]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.712529]  ? rcu_softirq_qs+0x20/0x20
[  425.716548]  ? filemap_map_pages+0xd92/0x1a20
[  425.721057]  ? find_get_entries_tag+0x1400/0x1400
[  425.725931]  ? debug_object_destroy+0x2b0/0x2b0
[  425.730619]  ? lock_pi_update_atomic+0x150/0x150
[  425.735378]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.740966]  ? lock_acquire+0x1ed/0x520
[  425.744948]  ? ext4_filemap_fault+0x7a/0xad
[  425.749276]  ? lock_release+0xa00/0xa00
[  425.753250]  ? perf_trace_sched_process_exec+0x860/0x860
[  425.758705]  ? print_usage_bug+0xc0/0xc0
[  425.762767]  ? print_usage_bug+0xc0/0xc0
[  425.766848]  ? down_read+0x8d/0x120
[  425.770472]  ? ext4_filemap_fault+0x7a/0xad
[  425.774796]  ? __down_interruptible+0x700/0x700
[  425.779480]  ext4_filemap_fault+0x82/0xad
[  425.783648]  __do_fault+0x100/0x6b0
[  425.787291]  ? find_held_lock+0x36/0x1c0
[  425.791396]  ? pmd_devmap_trans_unstable+0x220/0x220
[  425.796503]  ? mark_held_locks+0x130/0x130
[  425.800739]  ? mark_held_locks+0x130/0x130
[  425.804986]  ? kasan_check_read+0x11/0x20
[  425.809139]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  425.814694]  __handle_mm_fault+0x3ea0/0x5be0
[  425.819106]  ? perf_trace_lock+0x7a0/0x7a0
[  425.823347]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  425.828198]  ? __switch_to_asm+0x34/0x70
[  425.832258]  ? __switch_to_asm+0x34/0x70
[  425.836333]  ? zap_class+0x640/0x640
[  425.840049]  ? zap_class+0x640/0x640
[  425.843762]  ? __x64_sys_futex+0x53e/0x6a0
[  425.848002]  ? find_held_lock+0x36/0x1c0
[  425.852075]  ? handle_mm_fault+0x42a/0xc70
[  425.856316]  ? lock_downgrade+0x900/0x900
[  425.860468]  ? check_preemption_disabled+0x48/0x280
[  425.865502]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  425.870432]  ? kasan_check_read+0x11/0x20
[  425.874584]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  425.879888]  ? rcu_softirq_qs+0x20/0x20
[  425.883871]  ? trace_hardirqs_off_caller+0x310/0x310
[  425.888983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  425.894552]  ? sync_mm_rss+0x9a/0x1c0
[  425.898361]  handle_mm_fault+0x54f/0xc70
[  425.902455]  ? __handle_mm_fault+0x5be0/0x5be0
[  425.907056]  ? find_vma+0x34/0x190
[  425.910603]  __do_page_fault+0x5e8/0xe60
[  425.914667]  ? trace_hardirqs_off+0xb8/0x310
[  425.919086]  do_page_fault+0xf2/0x7e0
[  425.922903]  ? vmalloc_sync_all+0x30/0x30
[  425.927060]  ? error_entry+0x70/0xd0
[  425.930773]  ? trace_hardirqs_off_caller+0xbb/0x310
[  425.935817]  ? trace_hardirqs_on_caller+0xc0/0x310
[  425.940749]  ? syscall_return_slowpath+0x5e0/0x5e0
[  425.945708]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.950557]  ? trace_hardirqs_on_caller+0x310/0x310
[  425.955602]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  425.961066]  ? prepare_exit_to_usermode+0x291/0x3b0
[  425.966088]  ? page_fault+0x8/0x30
[  425.969643]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  425.974489]  ? page_fault+0x8/0x30
[  425.978032]  page_fault+0x1e/0x30
[  425.981502] RIP: 0033:0x45ddf3
[  425.984705] Code: Bad RIP value.
[  425.988085] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  425.993446] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  426.000726] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  426.007993] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  426.015259] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  426.022526] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  426.029832] warn_alloc_show_mem: 1 callbacks suppressed
[  426.029844] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  426.029846] Mem-Info:
[  426.029876] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  426.029876]  active_file:17 inactive_file:17 isolated_file:0
[  426.029876]  unevictable:0 dirty:4 writeback:0 unstable:0
[  426.029876]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  426.029876]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  426.029876]  free:13550 free_pcp:124 free_cma:0
[  426.035224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  426.042508] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  426.044919] Call Trace:
[  426.077986] 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
[  426.087334]  <IRQ>
[  426.115093] lowmem_reserve[]: 0 2818 6321 6321
[  426.117685]  dump_stack+0x244/0x39d
[  426.143769] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  426.145931]  ? dump_stack_print_info.cold.1+0x20/0x20
[  426.150483] lowmem_reserve[]: 0 0 3503 3503
[  426.154127]  warn_alloc.cold.116+0xb7/0x1bd
[  426.181449] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  426.186641]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  426.190924] lowmem_reserve[]: 0 0 0 0
[  426.195256]  ? lock_downgrade+0x900/0x900
[  426.224126] 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
[  426.228984]  ? trace_hardirqs_off+0xb8/0x310
[  426.232746] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  426.236891]  ? trace_hardirqs_off+0xb8/0x310
[  426.250394] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  426.254817]  __alloc_pages_slowpath+0x2651/0x2de0
[  426.269528] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  426.273965]  ? warn_alloc+0x120/0x120
[  426.288663] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  426.293509]  ? print_usage_bug+0xc0/0xc0
[  426.302319] 1360 total pagecache pages
[  426.306128]  ? warn_alloc+0x120/0x120
[  426.314708] 0 pages in swap cache
[  426.318750]  ? warn_alloc+0x120/0x120
[  426.322619] Swap cache stats: add 0, delete 0, find 0/0
[  426.326452]  ? print_usage_bug+0xc0/0xc0
[  426.329879] Free swap  = 0kB
[  426.333671]  ? kvm_clock_read+0x18/0x30
[  426.339006] Total swap = 0kB
[  426.343060]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  426.346064] 1965979 pages RAM
[  426.350047]  ? print_usage_bug+0xc0/0xc0
[  426.353043] 0 pages HighMem/MovableOnly
[  426.358051]  ? __lock_acquire+0x62f/0x4c20
[  426.361131] 342854 pages reserved
[  426.365207]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.369163] 0 pages cma reserved
[  426.373391]  ? should_fail+0x22d/0xd01
[  426.376906] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  426.382351]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.382369]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.382386]  ? __lock_acquire+0x62f/0x4c20
[  426.385798] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  426.389615]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  426.396080] syz-fuzzer cpuset=/ mems_allowed=0
[  426.401365]  ? __lock_acquire+0x62f/0x4c20
[  426.434758]  ? should_fail+0x22d/0xd01
[  426.438645]  ? rcu_irq_exit+0x1a2/0x390
[  426.442637]  ? mark_held_locks+0x130/0x130
[  426.446875]  ? mark_held_locks+0x130/0x130
[  426.451132]  ? mark_held_locks+0xc7/0x130
[  426.455316]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  426.460361]  ? zap_class+0x640/0x640
[  426.464076]  ? print_usage_bug+0xc0/0xc0
[  426.468160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.473701]  ? check_preemption_disabled+0x48/0x280
[  426.478742]  ? __lock_is_held+0xb5/0x140
[  426.482811]  __alloc_pages_nodemask+0xad8/0xea0
[  426.487479]  ? zap_class+0x640/0x640
[  426.491203]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  426.496231]  ? find_held_lock+0x36/0x1c0
[  426.500305]  ? ____cache_alloc_node+0x1c7/0x1e0
[  426.504993]  ? lock_downgrade+0x900/0x900
[  426.509157]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.514700]  cache_grow_begin+0xa5/0x8c0
[  426.518761]  ? do_raw_spin_unlock+0xa7/0x330
[  426.523199]  fallback_alloc+0x204/0x2e0
[  426.527210]  ____cache_alloc_node+0x1c7/0x1e0
[  426.531725]  kmem_cache_alloc_node+0xe3/0x730
[  426.536224]  ? ipv6_get_ifaddr+0x42e/0x620
[  426.540488]  __alloc_skb+0x119/0x770
[  426.544203]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.549486]  ? netdev_alloc_frag+0x1f0/0x1f0
[  426.553897]  ? lock_downgrade+0x900/0x900
[  426.558057]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.563597]  ? refcount_sub_and_test_checked+0x203/0x310
[  426.569070]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  426.574538]  ? addrconf_rs_timer+0x690/0x690
[  426.578959]  ndisc_alloc_skb+0x144/0x340
[  426.583026]  ndisc_send_rs+0x331/0x6e0
[  426.586955]  addrconf_rs_timer+0x314/0x690
[  426.591199]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.595452]  call_timer_fn+0x272/0x920
[  426.599376]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.603629]  ? process_timeout+0x40/0x40
[  426.607700]  ? __run_timers+0x7da/0xc70
[  426.611679]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.616190]  ? _raw_spin_unlock_irq+0x27/0x80
[  426.620689]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.624945]  ? lockdep_hardirqs_on+0x296/0x5b0
[  426.629544]  ? trace_hardirqs_on+0xbd/0x310
[  426.633873]  ? kasan_check_read+0x11/0x20
[  426.638018]  ? __run_timers+0x7da/0xc70
[  426.641993]  ? trace_hardirqs_off_caller+0x310/0x310
[  426.647117]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.651363]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  426.655597]  __run_timers+0x7e5/0xc70
[  426.659410]  ? timer_fixup_init+0x70/0x70
[  426.663564]  ? kasan_check_read+0x11/0x20
[  426.667716]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  426.673009]  ? rcu_softirq_qs+0x20/0x20
[  426.676987]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.682527]  ? check_preemption_disabled+0x48/0x280
[  426.687553]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  426.692317]  ? retint_kernel+0x2d/0x2d
[  426.696230]  ? trace_hardirqs_on_caller+0xc0/0x310
[  426.701170]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  426.705937]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  426.711391]  ? zap_class+0x640/0x640
[  426.715122]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.720675]  ? check_preemption_disabled+0x48/0x280
[  426.725702]  ? __lock_is_held+0xb5/0x140
[  426.729766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.735320]  ? check_preemption_disabled+0x48/0x280
[  426.740347]  run_timer_softirq+0x52/0xb0
[  426.744415]  ? rcu_read_lock_sched_held+0x14f/0x180
[  426.749444]  __do_softirq+0x308/0xb7e
[  426.753258]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  426.757774]  ? lock_downgrade+0x900/0x900
[  426.761930]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  426.767040]  ? pvclock_read_flags+0x160/0x160
[  426.771537]  ? lapic_next_event+0x5a/0x90
[  426.775739]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.781282]  ? kvm_clock_read+0x18/0x30
[  426.785256]  ? kvm_sched_clock_read+0x9/0x20
[  426.789666]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  426.795209]  ? check_preemption_disabled+0x48/0x280
[  426.800235]  irq_exit+0x17f/0x1c0
[  426.803707]  smp_apic_timer_interrupt+0x1cb/0x760
[  426.808549]  ? smp_reschedule_interrupt+0x109/0x650
[  426.813566]  ? smp_call_function_single_interrupt+0x650/0x650
[  426.819457]  ? interrupt_entry+0xb5/0xc0
[  426.823521]  ? trace_hardirqs_off_caller+0xbb/0x310
[  426.828536]  ? trace_hardirqs_off_caller+0xbb/0x310
[  426.833553]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.838398]  ? trace_hardirqs_on_caller+0x310/0x310
[  426.843432]  ? trace_hardirqs_on_caller+0x310/0x310
[  426.848461]  ? task_prio+0x50/0x50
[  426.852004]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  426.857558]  ? check_preemption_disabled+0x48/0x280
[  426.862594]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  426.867476]  apic_timer_interrupt+0xf/0x20
[  426.871708]  </IRQ>
[  426.873968] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  426.878899] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  426.897823] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  426.905531] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  426.912799] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  426.920068] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  426.927367] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  426.934632] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  426.941948]  skb_clone+0x1bb/0x500
[  426.945497]  ? skb_split+0x11e0/0x11e0
[  426.949615]  ? preempt_notifier_register+0x200/0x200
[  426.954717]  ? __switch_to_asm+0x34/0x70
[  426.958791]  ? __switch_to_asm+0x34/0x70
[  426.962854]  ? __switch_to_asm+0x40/0x70
[  426.966924]  ? __switch_to_asm+0x34/0x70
[  426.970986]  ? __switch_to_asm+0x40/0x70
[  426.975047]  ? __switch_to_asm+0x40/0x70
[  426.979104]  ? __switch_to_asm+0x34/0x70
[  426.983174]  ? __switch_to_asm+0x34/0x70
[  426.987247]  ? __switch_to_asm+0x40/0x70
[  426.991308]  ? __switch_to_asm+0x34/0x70
[  426.995374]  bpf_clone_redirect+0xb9/0x490
[  426.999619]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  427.004641]  ? __sched_text_start+0x8/0x8
[  427.008790]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  427.013562]  ? find_held_lock+0x36/0x1c0
[  427.017632]  ? lock_acquire+0x1ed/0x520
[  427.021607]  ? bpf_test_run+0x3ee/0x7a0
[  427.025582]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.031126]  ? check_preemption_disabled+0x48/0x280
[  427.036164]  ? kasan_check_read+0x11/0x20
[  427.040317]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.045612]  ? rcu_softirq_qs+0x20/0x20
[  427.049594]  ? preempt_schedule+0x4d/0x60
[  427.053746]  ? ___preempt_schedule+0x16/0x18
[  427.058169]  ? bpf_test_run+0x271/0x7a0
[  427.062163]  ? netlink_diag_dump+0x2a0/0x2a0
[  427.066577]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.072112]  ? bpf_test_init.isra.10+0x70/0x100
[  427.076817]  ? bpf_prog_test_run_skb+0x762/0xd60
[  427.081717]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  427.086567]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  427.092117]  ? fput+0x130/0x1a0
[  427.095409]  ? __bpf_prog_get+0x9b/0x290
[  427.099483]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  427.104325]  ? bpf_prog_test_run+0x130/0x1a0
[  427.108741]  ? __x64_sys_bpf+0x3d8/0x520
[  427.112805]  ? bpf_prog_get+0x20/0x20
[  427.116687]  ? do_syscall_64+0x1b9/0x820
[  427.120748]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  427.126118]  ? syscall_return_slowpath+0x5e0/0x5e0
[  427.131052]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.135912]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.140948]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  427.145967]  ? prepare_exit_to_usermode+0x291/0x3b0
[  427.150995]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.155853]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  427.161235] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  427.161341] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  427.168178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  427.168187] Call Trace:
[  427.174759] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  427.184009]  <IRQ>
[  427.186599] syz-executor4 cpuset=syz4 mems_allowed=0
[  427.197078]  dump_stack+0x244/0x39d
[  427.207933]  ? dump_stack_print_info.cold.1+0x20/0x20
[  427.213164]  warn_alloc.cold.116+0xb7/0x1bd
[  427.217492]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  427.222354]  ? lock_downgrade+0x900/0x900
[  427.226524]  ? trace_hardirqs_off+0xb8/0x310
[  427.230944]  ? trace_hardirqs_off+0xb8/0x310
[  427.235371]  __alloc_pages_slowpath+0x2651/0x2de0
[  427.240284]  ? warn_alloc+0x120/0x120
[  427.244103]  ? print_usage_bug+0xc0/0xc0
[  427.248227]  ? warn_alloc+0x120/0x120
[  427.252033]  ? warn_alloc+0x120/0x120
[  427.255880]  ? print_usage_bug+0xc0/0xc0
[  427.259967]  ? print_usage_bug+0xc0/0xc0
[  427.264056]  ? __lock_acquire+0x62f/0x4c20
[  427.268309]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.273847]  ? should_fail+0x22d/0xd01
[  427.277755]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.282859]  ? __lock_acquire+0x62f/0x4c20
[  427.287101]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.292215]  ? __lock_acquire+0x62f/0x4c20
[  427.296477]  ? should_fail+0x22d/0xd01
[  427.300360]  ? find_held_lock+0x36/0x1c0
[  427.304448]  ? mark_held_locks+0x130/0x130
[  427.308725]  ? mark_held_locks+0x130/0x130
[  427.312962]  ? zap_class+0x640/0x640
[  427.316688]  ? zap_class+0x640/0x640
[  427.320403]  ? print_usage_bug+0xc0/0xc0
[  427.324462]  ? do_raw_spin_unlock+0xa7/0x330
[  427.328870]  ? zap_class+0x640/0x640
[  427.332582]  ? print_usage_bug+0xc0/0xc0
[  427.336642]  ? wq_watchdog_touch+0x9c/0xfe
[  427.340907]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.346473]  ? check_preemption_disabled+0x48/0x280
[  427.351497]  ? __lock_is_held+0xb5/0x140
[  427.355566]  __alloc_pages_nodemask+0xad8/0xea0
[  427.360249]  ? zap_class+0x640/0x640
[  427.363966]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  427.368990]  ? find_held_lock+0x36/0x1c0
[  427.373106]  ? ____cache_alloc_node+0x1c7/0x1e0
[  427.377773]  ? lock_downgrade+0x900/0x900
[  427.381945]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.387492]  cache_grow_begin+0xa5/0x8c0
[  427.391566]  ? do_raw_spin_unlock+0xa7/0x330
[  427.395980]  fallback_alloc+0x204/0x2e0
[  427.399958]  ____cache_alloc_node+0x1c7/0x1e0
[  427.404461]  kmem_cache_alloc_node+0xe3/0x730
[  427.409002]  ? ipv6_get_ifaddr+0x42e/0x620
[  427.413257]  __alloc_skb+0x119/0x770
[  427.416981]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  427.422298]  ? netdev_alloc_frag+0x1f0/0x1f0
[  427.426726]  ? lock_downgrade+0x900/0x900
[  427.430913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.436471]  ? refcount_sub_and_test_checked+0x203/0x310
[  427.441946]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  427.447418]  ? addrconf_rs_timer+0x690/0x690
[  427.451851]  ndisc_alloc_skb+0x144/0x340
[  427.455924]  ndisc_send_rs+0x331/0x6e0
[  427.459830]  addrconf_rs_timer+0x314/0x690
[  427.464128]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.468410]  call_timer_fn+0x272/0x920
[  427.472299]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.476554]  ? process_timeout+0x40/0x40
[  427.480624]  ? mark_held_locks+0xc7/0x130
[  427.484790]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.489283]  ? _raw_spin_unlock_irq+0x27/0x80
[  427.493776]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.498011]  ? lockdep_hardirqs_on+0x296/0x5b0
[  427.502616]  ? trace_hardirqs_on+0xbd/0x310
[  427.506941]  ? kasan_check_read+0x11/0x20
[  427.511085]  ? __run_timers+0x7da/0xc70
[  427.515073]  ? trace_hardirqs_off_caller+0x310/0x310
[  427.520200]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.524437]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  427.528668]  __run_timers+0x7e5/0xc70
[  427.532480]  ? timer_fixup_init+0x70/0x70
[  427.536634]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  427.541666]  ? zap_class+0x640/0x640
[  427.545385]  ? print_usage_bug+0xc0/0xc0
[  427.549453]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  427.554662]  ? find_held_lock+0x36/0x1c0
[  427.558732]  ? zap_class+0x640/0x640
[  427.562465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.568028]  ? check_preemption_disabled+0x48/0x280
[  427.573082]  ? __lock_is_held+0xb5/0x140
[  427.577188]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.582756]  ? check_preemption_disabled+0x48/0x280
[  427.587787]  run_timer_softirq+0x52/0xb0
[  427.591855]  ? rcu_read_lock_sched_held+0x14f/0x180
[  427.596901]  __do_softirq+0x308/0xb7e
[  427.600725]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  427.605250]  ? lock_downgrade+0x900/0x900
[  427.609408]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  427.614522]  ? pvclock_read_flags+0x160/0x160
[  427.619030]  ? lapic_next_event+0x5a/0x90
[  427.623187]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.628730]  ? kvm_clock_read+0x18/0x30
[  427.632703]  ? kvm_sched_clock_read+0x9/0x20
[  427.637112]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.642649]  ? check_preemption_disabled+0x48/0x280
[  427.647672]  irq_exit+0x17f/0x1c0
[  427.651124]  smp_apic_timer_interrupt+0x1cb/0x760
[  427.655970]  ? smp_reschedule_interrupt+0x109/0x650
[  427.660986]  ? smp_call_function_single_interrupt+0x650/0x650
[  427.666883]  ? interrupt_entry+0xb5/0xc0
[  427.670982]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.675995]  ? trace_hardirqs_off_caller+0xbb/0x310
[  427.681014]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.685861]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.690878]  ? trace_hardirqs_on_caller+0x310/0x310
[  427.695895]  ? task_prio+0x50/0x50
[  427.699456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.705014]  ? check_preemption_disabled+0x48/0x280
[  427.710036]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  427.714894]  apic_timer_interrupt+0xf/0x20
[  427.719145]  </IRQ>
[  427.721400] RIP: 0010:lock_acquire+0x268/0x520
[  427.726101] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  427.745004] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  427.752715] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  427.759983] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  427.767254] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  427.774539] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  427.781844] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  427.789185]  ? lruvec_lru_size+0x450/0x450
[  427.793450]  ? kasan_check_read+0x11/0x20
[  427.797633]  ? lock_release+0xa00/0xa00
[  427.801644]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  427.806610]  down_read_trylock+0xda/0x140
[  427.810774]  ? shrink_slab+0x207/0x8c0
[  427.814675]  ? downgrade_write+0x270/0x270
[  427.818934]  shrink_slab+0x207/0x8c0
[  427.822654]  ? shrink_active_list+0x1f00/0x1f00
[  427.827334]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  427.832965]  ? __lock_acquire+0x62f/0x4c20
[  427.837203]  ? percpu_ref_get_many+0x240/0x240
[  427.841824]  ? print_usage_bug+0xc0/0xc0
[  427.845927]  shrink_node+0x431/0x16b0
[  427.849746]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  427.855060]  ? shrink_node_memcg+0x18f0/0x18f0
[  427.859652]  ? kvm_clock_read+0x18/0x30
[  427.863631]  ? ktime_get+0x2c1/0x400
[  427.867367]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  427.871879]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  427.877420]  ? __cpuset_node_allowed+0x19b/0x660
[  427.882183]  ? mark_held_locks+0x130/0x130
[  427.886422]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  427.892133]  ? zap_class+0x640/0x640
[  427.895863]  do_try_to_free_pages+0x3e7/0x1290
[  427.900456]  ? zap_class+0x640/0x640
[  427.904222]  ? shrink_node+0x16b0/0x16b0
[  427.908335]  ? __lock_is_held+0xb5/0x140
[  427.912442]  try_to_free_pages+0x4d0/0xb90
[  427.916702]  ? do_try_to_free_pages+0x1290/0x1290
[  427.921598]  ? lock_acquire+0x1ed/0x520
[  427.925595]  ? set_page_refcounted+0x280/0x280
[  427.930217]  ? lock_release+0xa00/0xa00
[  427.934225]  ? _raw_spin_unlock_irq+0x60/0x80
[  427.938751]  ? psi_memstall_enter+0x240/0x2b0
[  427.943282]  ? psi_memstall_tick+0x230/0x230
[  427.947732]  __alloc_pages_slowpath+0xa48/0x2de0
[  427.952569]  ? warn_alloc+0x120/0x120
[  427.956385]  ? mark_held_locks+0x130/0x130
[  427.960641]  ? find_get_entry+0xaae/0x1120
[  427.964891]  ? filemap_map_pages+0x1a20/0x1a20
[  427.969485]  ? zap_class+0x640/0x640
[  427.973205]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  427.978749]  ? check_preemption_disabled+0x48/0x280
[  427.983785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  427.989342]  ? should_fail+0x22d/0xd01
[  427.993237]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  427.998342]  ? zap_class+0x640/0x640
[  428.002077]  ? __lock_is_held+0xb5/0x140
[  428.006144]  ? mark_held_locks+0x130/0x130
[  428.010389]  ? lock_release+0xa00/0xa00
[  428.014374]  ? perf_trace_sched_process_exec+0x860/0x860
[  428.019845]  ? xa_load+0x2ba/0x460
[  428.023418]  ? lock_downgrade+0x900/0x900
[  428.027605]  ? __might_sleep+0x95/0x190
[  428.031585]  __alloc_pages_nodemask+0xad8/0xea0
[  428.036265]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  428.041292]  ? __page_cache_alloc+0x191/0x5c0
[  428.045791]  ? xa_load+0x2e1/0x460
[  428.049347]  ? xa_clear_mark+0x40/0x40
[  428.053239]  ? zap_class+0x640/0x640
[  428.056962]  ? zap_class+0x640/0x640
[  428.060675]  ? zap_class+0x640/0x640
[  428.064390]  ? __do_page_cache_readahead+0x663/0x810
[  428.069502]  ? find_held_lock+0x36/0x1c0
[  428.073569]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  428.079122]  alloc_pages_current+0x173/0x350
[  428.083546]  __page_cache_alloc+0x38c/0x5c0
[  428.087868]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.092814]  ? kasan_check_read+0x11/0x20
[  428.096964]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.102245]  ? generic_perform_write+0x6a0/0x6a0
[  428.107022]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.112561]  ? check_preemption_disabled+0x48/0x280
[  428.117591]  filemap_fault+0x1595/0x25f0
[  428.121668]  ? __lock_page_or_retry+0xa00/0xa00
[  428.126361]  ? mark_held_locks+0x130/0x130
[  428.130608]  ? filemap_map_pages+0xd6b/0x1a20
[  428.135125]  ? lock_downgrade+0x900/0x900
[  428.139291]  ? check_preemption_disabled+0x48/0x280
[  428.144311]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.149243]  ? kasan_check_read+0x11/0x20
[  428.153389]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.158675]  ? rcu_softirq_qs+0x20/0x20
[  428.162662]  ? filemap_map_pages+0xd92/0x1a20
[  428.167182]  ? find_get_entries_tag+0x1400/0x1400
[  428.172028]  ? debug_object_destroy+0x2b0/0x2b0
[  428.176711]  ? lock_pi_update_atomic+0x150/0x150
[  428.181467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.187016]  ? lock_acquire+0x1ed/0x520
[  428.190988]  ? ext4_filemap_fault+0x7a/0xad
[  428.195315]  ? lock_release+0xa00/0xa00
[  428.199288]  ? perf_trace_sched_process_exec+0x860/0x860
[  428.204770]  ? print_usage_bug+0xc0/0xc0
[  428.208847]  ? print_usage_bug+0xc0/0xc0
[  428.212972]  ? down_read+0x8d/0x120
[  428.216594]  ? ext4_filemap_fault+0x7a/0xad
[  428.220917]  ? __down_interruptible+0x700/0x700
[  428.225601]  ext4_filemap_fault+0x82/0xad
[  428.229754]  __do_fault+0x100/0x6b0
[  428.233379]  ? find_held_lock+0x36/0x1c0
[  428.237493]  ? pmd_devmap_trans_unstable+0x220/0x220
[  428.242596]  ? mark_held_locks+0x130/0x130
[  428.246828]  ? mark_held_locks+0x130/0x130
[  428.251072]  ? kasan_check_read+0x11/0x20
[  428.255219]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.260763]  __handle_mm_fault+0x3ea0/0x5be0
[  428.265177]  ? perf_trace_lock+0x7a0/0x7a0
[  428.269433]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  428.274284]  ? __switch_to_asm+0x34/0x70
[  428.278349]  ? __switch_to_asm+0x34/0x70
[  428.282447]  ? zap_class+0x640/0x640
[  428.286176]  ? zap_class+0x640/0x640
[  428.289898]  ? __x64_sys_futex+0x53e/0x6a0
[  428.294169]  ? find_held_lock+0x36/0x1c0
[  428.298260]  ? handle_mm_fault+0x42a/0xc70
[  428.302523]  ? lock_downgrade+0x900/0x900
[  428.306711]  ? check_preemption_disabled+0x48/0x280
[  428.311769]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  428.316721]  ? kasan_check_read+0x11/0x20
[  428.320891]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.326197]  ? rcu_softirq_qs+0x20/0x20
[  428.330200]  ? trace_hardirqs_off_caller+0x310/0x310
[  428.335371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.340967]  ? sync_mm_rss+0x9a/0x1c0
[  428.344777]  handle_mm_fault+0x54f/0xc70
[  428.348862]  ? __handle_mm_fault+0x5be0/0x5be0
[  428.353465]  ? find_vma+0x34/0x190
[  428.357028]  __do_page_fault+0x5e8/0xe60
[  428.361092]  ? trace_hardirqs_off+0xb8/0x310
[  428.365515]  do_page_fault+0xf2/0x7e0
[  428.369328]  ? vmalloc_sync_all+0x30/0x30
[  428.373496]  ? error_entry+0x70/0xd0
[  428.377255]  ? trace_hardirqs_off_caller+0xbb/0x310
[  428.382300]  ? trace_hardirqs_on_caller+0xc0/0x310
[  428.387250]  ? syscall_return_slowpath+0x5e0/0x5e0
[  428.392215]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.397079]  ? trace_hardirqs_on_caller+0x310/0x310
[  428.402114]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  428.407623]  ? prepare_exit_to_usermode+0x291/0x3b0
[  428.412700]  ? page_fault+0x8/0x30
[  428.416244]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  428.421085]  ? page_fault+0x8/0x30
[  428.424656]  page_fault+0x1e/0x30
[  428.428138] RIP: 0033:0x45ddf3
[  428.431379] Code: Bad RIP value.
[  428.434762] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  428.440123] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  428.447405] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  428.454689] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  428.461974] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  428.469239] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  428.476535] warn_alloc_show_mem: 1 callbacks suppressed
[  428.476547] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  428.476549] Mem-Info:
[  428.476580] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  428.476580]  active_file:17 inactive_file:17 isolated_file:0
[  428.476580]  unevictable:0 dirty:4 writeback:0 unstable:0
[  428.476580]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  428.476580]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  428.476580]  free:13550 free_pcp:124 free_cma:0
[  428.481921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  428.489209] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  428.491622] Call Trace:
[  428.524689] 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
[  428.534037]  <IRQ>
[  428.561913] lowmem_reserve[]: 0 2818 6321 6321
[  428.564535]  dump_stack+0x244/0x39d
[  428.590643] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  428.592803]  ? dump_stack_print_info.cold.1+0x20/0x20
[  428.597356] lowmem_reserve[]: 0 0 3503 3503
[  428.601002]  warn_alloc.cold.116+0xb7/0x1bd
[  428.628297] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  428.633487]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  428.637779] lowmem_reserve[]: 0 0 0 0
[  428.642100]  ? lock_downgrade+0x900/0x900
[  428.670957] 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
[  428.675831]  ? trace_hardirqs_off+0xb8/0x310
[  428.679599] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  428.683739]  ? trace_hardirqs_off+0xb8/0x310
[  428.697248] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  428.701658]  __alloc_pages_slowpath+0x2651/0x2de0
[  428.716371] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  428.720790]  ? warn_alloc+0x120/0x120
[  428.735504] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  428.740334]  ? print_usage_bug+0xc0/0xc0
[  428.749167] 1360 total pagecache pages
[  428.752961]  ? warn_alloc+0x120/0x120
[  428.761516] 0 pages in swap cache
[  428.765562]  ? warn_alloc+0x120/0x120
[  428.769431] Swap cache stats: add 0, delete 0, find 0/0
[  428.773251]  ? print_usage_bug+0xc0/0xc0
[  428.776681] Free swap  = 0kB
[  428.780478]  ? kvm_clock_read+0x18/0x30
[  428.785813] Total swap = 0kB
[  428.789873]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  428.792865] 1965979 pages RAM
[  428.796828]  ? print_usage_bug+0xc0/0xc0
[  428.799819] 0 pages HighMem/MovableOnly
[  428.804831]  ? __lock_acquire+0x62f/0x4c20
[  428.807910] 342854 pages reserved
[  428.811968]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  428.816019] 0 pages cma reserved
[  428.820279]  ? should_fail+0x22d/0xd01
[  428.823787] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  428.829241]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.829275]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.832726] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  428.836504]  ? __lock_acquire+0x62f/0x4c20
[  428.842971] syz-fuzzer cpuset=/ mems_allowed=0
[  428.848255]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  428.877498]  ? __lock_acquire+0x62f/0x4c20
[  428.881740]  ? should_fail+0x22d/0xd01
[  428.885629]  ? rcu_irq_exit+0x1a2/0x390
[  428.889616]  ? mark_held_locks+0x130/0x130
[  428.893890]  ? mark_held_locks+0x130/0x130
[  428.898127]  ? mark_held_locks+0xc7/0x130
[  428.902301]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  428.907322]  ? zap_class+0x640/0x640
[  428.911040]  ? print_usage_bug+0xc0/0xc0
[  428.915109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.920691]  ? check_preemption_disabled+0x48/0x280
[  428.925769]  ? __lock_is_held+0xb5/0x140
[  428.929864]  __alloc_pages_nodemask+0xad8/0xea0
[  428.934548]  ? zap_class+0x640/0x640
[  428.938277]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  428.943309]  ? find_held_lock+0x36/0x1c0
[  428.947392]  ? ____cache_alloc_node+0x1c7/0x1e0
[  428.952588]  ? lock_downgrade+0x900/0x900
[  428.956747]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  428.962307]  cache_grow_begin+0xa5/0x8c0
[  428.966383]  ? do_raw_spin_unlock+0xa7/0x330
[  428.970802]  fallback_alloc+0x204/0x2e0
[  428.974800]  ____cache_alloc_node+0x1c7/0x1e0
[  428.979344]  kmem_cache_alloc_node+0xe3/0x730
[  428.983859]  ? ipv6_get_ifaddr+0x42e/0x620
[  428.988104]  __alloc_skb+0x119/0x770
[  428.991880]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  428.997179]  ? netdev_alloc_frag+0x1f0/0x1f0
[  429.001602]  ? lock_downgrade+0x900/0x900
[  429.005761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.011300]  ? refcount_sub_and_test_checked+0x203/0x310
[  429.016756]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  429.022209]  ? addrconf_rs_timer+0x690/0x690
[  429.026632]  ndisc_alloc_skb+0x144/0x340
[  429.030720]  ndisc_send_rs+0x331/0x6e0
[  429.034641]  addrconf_rs_timer+0x314/0x690
[  429.038880]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.043128]  call_timer_fn+0x272/0x920
[  429.047024]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.051259]  ? process_timeout+0x40/0x40
[  429.055324]  ? __run_timers+0x7da/0xc70
[  429.059300]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.063803]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.068297]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.072530]  ? lockdep_hardirqs_on+0x296/0x5b0
[  429.077110]  ? trace_hardirqs_on+0xbd/0x310
[  429.081726]  ? kasan_check_read+0x11/0x20
[  429.085870]  ? __run_timers+0x7da/0xc70
[  429.089842]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.094949]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.099209]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.103447]  __run_timers+0x7e5/0xc70
[  429.107255]  ? timer_fixup_init+0x70/0x70
[  429.111437]  ? kasan_check_read+0x11/0x20
[  429.115581]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.120854]  ? rcu_softirq_qs+0x20/0x20
[  429.124829]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.130382]  ? check_preemption_disabled+0x48/0x280
[  429.135410]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  429.140202]  ? retint_kernel+0x2d/0x2d
[  429.144114]  ? trace_hardirqs_on_caller+0xc0/0x310
[  429.149065]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  429.153823]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  429.159289]  ? zap_class+0x640/0x640
[  429.163013]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.168554]  ? check_preemption_disabled+0x48/0x280
[  429.173583]  ? __lock_is_held+0xb5/0x140
[  429.177659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.183199]  ? check_preemption_disabled+0x48/0x280
[  429.188226]  run_timer_softirq+0x52/0xb0
[  429.192306]  ? rcu_read_lock_sched_held+0x14f/0x180
[  429.197341]  __do_softirq+0x308/0xb7e
[  429.201155]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  429.205656]  ? lock_downgrade+0x900/0x900
[  429.209813]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  429.214971]  ? pvclock_read_flags+0x160/0x160
[  429.219471]  ? lapic_next_event+0x5a/0x90
[  429.223645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.229199]  ? kvm_clock_read+0x18/0x30
[  429.233184]  ? kvm_sched_clock_read+0x9/0x20
[  429.237603]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.243158]  ? check_preemption_disabled+0x48/0x280
[  429.248199]  irq_exit+0x17f/0x1c0
[  429.251659]  smp_apic_timer_interrupt+0x1cb/0x760
[  429.256504]  ? smp_reschedule_interrupt+0x109/0x650
[  429.261569]  ? smp_call_function_single_interrupt+0x650/0x650
[  429.267490]  ? interrupt_entry+0xb5/0xc0
[  429.271565]  ? trace_hardirqs_off_caller+0xbb/0x310
[  429.276602]  ? trace_hardirqs_off_caller+0xbb/0x310
[  429.281644]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.286505]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.291527]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.296550]  ? task_prio+0x50/0x50
[  429.300098]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.305656]  ? check_preemption_disabled+0x48/0x280
[  429.310683]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.315538]  apic_timer_interrupt+0xf/0x20
[  429.319770]  </IRQ>
[  429.322013] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  429.326951] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  429.345894] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  429.353602] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  429.360868] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  429.368135] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  429.375434] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  429.382700] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  429.390036]  skb_clone+0x1bb/0x500
[  429.393581]  ? skb_split+0x11e0/0x11e0
[  429.397472]  ? preempt_notifier_register+0x200/0x200
[  429.402577]  ? __switch_to_asm+0x34/0x70
[  429.406652]  ? __switch_to_asm+0x34/0x70
[  429.410706]  ? __switch_to_asm+0x40/0x70
[  429.414763]  ? __switch_to_asm+0x34/0x70
[  429.418833]  ? __switch_to_asm+0x40/0x70
[  429.422888]  ? __switch_to_asm+0x40/0x70
[  429.426952]  ? __switch_to_asm+0x34/0x70
[  429.431028]  ? __switch_to_asm+0x34/0x70
[  429.435086]  ? __switch_to_asm+0x40/0x70
[  429.439142]  ? __switch_to_asm+0x34/0x70
[  429.443214]  bpf_clone_redirect+0xb9/0x490
[  429.447457]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  429.452482]  ? __sched_text_start+0x8/0x8
[  429.456646]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  429.461432]  ? find_held_lock+0x36/0x1c0
[  429.465520]  ? lock_acquire+0x1ed/0x520
[  429.469526]  ? bpf_test_run+0x3ee/0x7a0
[  429.473499]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.479042]  ? check_preemption_disabled+0x48/0x280
[  429.484099]  ? kasan_check_read+0x11/0x20
[  429.488265]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.493545]  ? rcu_softirq_qs+0x20/0x20
[  429.497522]  ? preempt_schedule+0x4d/0x60
[  429.501672]  ? ___preempt_schedule+0x16/0x18
[  429.506091]  ? bpf_test_run+0x271/0x7a0
[  429.510088]  ? netlink_diag_dump+0x2a0/0x2a0
[  429.514498]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.520031]  ? bpf_test_init.isra.10+0x70/0x100
[  429.524705]  ? bpf_prog_test_run_skb+0x762/0xd60
[  429.529506]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  429.534369]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  429.539940]  ? fput+0x130/0x1a0
[  429.543227]  ? __bpf_prog_get+0x9b/0x290
[  429.547293]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  429.552140]  ? bpf_prog_test_run+0x130/0x1a0
[  429.556596]  ? __x64_sys_bpf+0x3d8/0x520
[  429.560682]  ? bpf_prog_get+0x20/0x20
[  429.564534]  ? do_syscall_64+0x1b9/0x820
[  429.568611]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  429.573978]  ? syscall_return_slowpath+0x5e0/0x5e0
[  429.579033]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.583880]  ? trace_hardirqs_on_caller+0x310/0x310
[  429.588902]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  429.593953]  ? prepare_exit_to_usermode+0x291/0x3b0
[  429.598979]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  429.603825]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  429.609208] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  429.609296] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  429.616142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  429.616155] Call Trace:
[  429.616163]  <IRQ>
[  429.616180]  dump_stack+0x244/0x39d
[  429.616200]  ? dump_stack_print_info.cold.1+0x20/0x20
[  429.622765] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  429.632026]  warn_alloc.cold.116+0xb7/0x1bd
[  429.634577] syz-executor4 cpuset=syz4 mems_allowed=0
[  429.636722]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  429.670215]  ? lock_downgrade+0x900/0x900
[  429.674381]  ? trace_hardirqs_off+0xb8/0x310
[  429.678806]  ? trace_hardirqs_off+0xb8/0x310
[  429.683245]  __alloc_pages_slowpath+0x2651/0x2de0
[  429.688129]  ? warn_alloc+0x120/0x120
[  429.691950]  ? print_usage_bug+0xc0/0xc0
[  429.696015]  ? warn_alloc+0x120/0x120
[  429.699823]  ? warn_alloc+0x120/0x120
[  429.703650]  ? print_usage_bug+0xc0/0xc0
[  429.707735]  ? kvm_clock_read+0x18/0x30
[  429.711713]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  429.716740]  ? print_usage_bug+0xc0/0xc0
[  429.720812]  ? __lock_acquire+0x62f/0x4c20
[  429.725059]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  429.730602]  ? should_fail+0x22d/0xd01
[  429.734492]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.739795]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.744910]  ? __lock_acquire+0x62f/0x4c20
[  429.749187]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  429.754355]  ? __lock_acquire+0x62f/0x4c20
[  429.758609]  ? should_fail+0x22d/0xd01
[  429.762500]  ? rcu_irq_exit+0x1a2/0x390
[  429.766489]  ? mark_held_locks+0x130/0x130
[  429.770731]  ? mark_held_locks+0x130/0x130
[  429.774971]  ? mark_held_locks+0xc7/0x130
[  429.779119]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  429.784163]  ? zap_class+0x640/0x640
[  429.787882]  ? print_usage_bug+0xc0/0xc0
[  429.791986]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.797530]  ? check_preemption_disabled+0x48/0x280
[  429.802556]  ? __lock_is_held+0xb5/0x140
[  429.806637]  __alloc_pages_nodemask+0xad8/0xea0
[  429.811308]  ? zap_class+0x640/0x640
[  429.815031]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  429.820057]  ? find_held_lock+0x36/0x1c0
[  429.824129]  ? ____cache_alloc_node+0x1c7/0x1e0
[  429.828807]  ? lock_downgrade+0x900/0x900
[  429.832968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.838508]  cache_grow_begin+0xa5/0x8c0
[  429.842592]  ? do_raw_spin_unlock+0xa7/0x330
[  429.847085]  fallback_alloc+0x204/0x2e0
[  429.851095]  ____cache_alloc_node+0x1c7/0x1e0
[  429.855596]  kmem_cache_alloc_node+0xe3/0x730
[  429.860097]  ? ipv6_get_ifaddr+0x42e/0x620
[  429.864345]  __alloc_skb+0x119/0x770
[  429.868060]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  429.873344]  ? netdev_alloc_frag+0x1f0/0x1f0
[  429.877756]  ? lock_downgrade+0x900/0x900
[  429.881918]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  429.887468]  ? refcount_sub_and_test_checked+0x203/0x310
[  429.892935]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  429.898391]  ? addrconf_rs_timer+0x690/0x690
[  429.902819]  ndisc_alloc_skb+0x144/0x340
[  429.906892]  ndisc_send_rs+0x331/0x6e0
[  429.910800]  addrconf_rs_timer+0x314/0x690
[  429.915055]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.919310]  call_timer_fn+0x272/0x920
[  429.923205]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.927447]  ? process_timeout+0x40/0x40
[  429.931526]  ? mark_held_locks+0xc7/0x130
[  429.935682]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.940187]  ? _raw_spin_unlock_irq+0x27/0x80
[  429.944688]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.948931]  ? lockdep_hardirqs_on+0x296/0x5b0
[  429.953519]  ? trace_hardirqs_on+0xbd/0x310
[  429.957855]  ? kasan_check_read+0x11/0x20
[  429.962003]  ? __run_timers+0x7da/0xc70
[  429.965981]  ? trace_hardirqs_off_caller+0x310/0x310
[  429.971095]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.975354]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  429.979615]  __run_timers+0x7e5/0xc70
[  429.983434]  ? timer_fixup_init+0x70/0x70
[  429.987591]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  429.992619]  ? zap_class+0x640/0x640
[  429.996343]  ? print_usage_bug+0xc0/0xc0
[  430.000447]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  430.005650]  ? find_held_lock+0x36/0x1c0
[  430.009718]  ? zap_class+0x640/0x640
[  430.013444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.019001]  ? check_preemption_disabled+0x48/0x280
[  430.024030]  ? __lock_is_held+0xb5/0x140
[  430.028098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.033672]  ? check_preemption_disabled+0x48/0x280
[  430.038728]  run_timer_softirq+0x52/0xb0
[  430.042824]  ? rcu_read_lock_sched_held+0x14f/0x180
[  430.047874]  __do_softirq+0x308/0xb7e
[  430.051691]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  430.056206]  ? lock_downgrade+0x900/0x900
[  430.060361]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  430.065475]  ? pvclock_read_flags+0x160/0x160
[  430.069974]  ? lapic_next_event+0x5a/0x90
[  430.074134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.079696]  ? kvm_clock_read+0x18/0x30
[  430.083681]  ? kvm_sched_clock_read+0x9/0x20
[  430.088090]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.093646]  ? check_preemption_disabled+0x48/0x280
[  430.098689]  irq_exit+0x17f/0x1c0
[  430.102186]  smp_apic_timer_interrupt+0x1cb/0x760
[  430.107035]  ? smp_reschedule_interrupt+0x109/0x650
[  430.112052]  ? smp_call_function_single_interrupt+0x650/0x650
[  430.117946]  ? interrupt_entry+0xb5/0xc0
[  430.122010]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.127023]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.132044]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.136883]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.141895]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.146917]  ? task_prio+0x50/0x50
[  430.150484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.156025]  ? check_preemption_disabled+0x48/0x280
[  430.161045]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.165894]  apic_timer_interrupt+0xf/0x20
[  430.170146]  </IRQ>
[  430.172399] RIP: 0010:lock_acquire+0x268/0x520
[  430.176997] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  430.195892] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  430.203602] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  430.210869] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  430.218162] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  430.225436] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  430.232707] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  430.240012]  ? lruvec_lru_size+0x450/0x450
[  430.244248]  ? kasan_check_read+0x11/0x20
[  430.248401]  ? lock_release+0xa00/0xa00
[  430.252382]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  430.257322]  down_read_trylock+0xda/0x140
[  430.261469]  ? shrink_slab+0x207/0x8c0
[  430.265361]  ? downgrade_write+0x270/0x270
[  430.269612]  shrink_slab+0x207/0x8c0
[  430.273342]  ? shrink_active_list+0x1f00/0x1f00
[  430.278023]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  430.283645]  ? __lock_acquire+0x62f/0x4c20
[  430.287882]  ? percpu_ref_get_many+0x240/0x240
[  430.292485]  ? print_usage_bug+0xc0/0xc0
[  430.296553]  shrink_node+0x431/0x16b0
[  430.300352]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  430.305653]  ? shrink_node_memcg+0x18f0/0x18f0
[  430.310241]  ? kvm_clock_read+0x18/0x30
[  430.314218]  ? ktime_get+0x2c1/0x400
[  430.317942]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  430.322443]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  430.327983]  ? __cpuset_node_allowed+0x19b/0x660
[  430.332738]  ? mark_held_locks+0x130/0x130
[  430.336981]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  430.342689]  ? zap_class+0x640/0x640
[  430.346430]  do_try_to_free_pages+0x3e7/0x1290
[  430.351011]  ? zap_class+0x640/0x640
[  430.354754]  ? shrink_node+0x16b0/0x16b0
[  430.358817]  ? __lock_is_held+0xb5/0x140
[  430.362889]  try_to_free_pages+0x4d0/0xb90
[  430.367178]  ? do_try_to_free_pages+0x1290/0x1290
[  430.372038]  ? lock_acquire+0x1ed/0x520
[  430.376021]  ? set_page_refcounted+0x280/0x280
[  430.380614]  ? lock_release+0xa00/0xa00
[  430.384589]  ? _raw_spin_unlock_irq+0x60/0x80
[  430.389086]  ? psi_memstall_enter+0x240/0x2b0
[  430.393586]  ? psi_memstall_tick+0x230/0x230
[  430.398007]  __alloc_pages_slowpath+0xa48/0x2de0
[  430.402791]  ? warn_alloc+0x120/0x120
[  430.406610]  ? mark_held_locks+0x130/0x130
[  430.410868]  ? find_get_entry+0xaae/0x1120
[  430.415113]  ? filemap_map_pages+0x1a20/0x1a20
[  430.419699]  ? zap_class+0x640/0x640
[  430.423421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.428970]  ? check_preemption_disabled+0x48/0x280
[  430.433992]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.439556]  ? should_fail+0x22d/0xd01
[  430.443454]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  430.448561]  ? zap_class+0x640/0x640
[  430.452301]  ? __lock_is_held+0xb5/0x140
[  430.456371]  ? mark_held_locks+0x130/0x130
[  430.460628]  ? lock_release+0xa00/0xa00
[  430.464621]  ? perf_trace_sched_process_exec+0x860/0x860
[  430.470083]  ? xa_load+0x2ba/0x460
[  430.473642]  ? lock_downgrade+0x900/0x900
[  430.477815]  ? __might_sleep+0x95/0x190
[  430.481828]  __alloc_pages_nodemask+0xad8/0xea0
[  430.486531]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  430.491573]  ? __page_cache_alloc+0x191/0x5c0
[  430.496073]  ? xa_load+0x2e1/0x460
[  430.499632]  ? xa_clear_mark+0x40/0x40
[  430.503524]  ? zap_class+0x640/0x640
[  430.507246]  ? zap_class+0x640/0x640
[  430.510959]  ? zap_class+0x640/0x640
[  430.514694]  ? __do_page_cache_readahead+0x663/0x810
[  430.519817]  ? find_held_lock+0x36/0x1c0
[  430.523883]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  430.529481]  alloc_pages_current+0x173/0x350
[  430.533896]  __page_cache_alloc+0x38c/0x5c0
[  430.538236]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.543182]  ? kasan_check_read+0x11/0x20
[  430.547334]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.552618]  ? generic_perform_write+0x6a0/0x6a0
[  430.557394]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.562941]  ? check_preemption_disabled+0x48/0x280
[  430.567970]  filemap_fault+0x1595/0x25f0
[  430.572063]  ? __lock_page_or_retry+0xa00/0xa00
[  430.576734]  ? mark_held_locks+0x130/0x130
[  430.580999]  ? filemap_map_pages+0xd6b/0x1a20
[  430.585514]  ? lock_downgrade+0x900/0x900
[  430.589666]  ? check_preemption_disabled+0x48/0x280
[  430.594691]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.599626]  ? kasan_check_read+0x11/0x20
[  430.603772]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.609063]  ? rcu_softirq_qs+0x20/0x20
[  430.613052]  ? filemap_map_pages+0xd92/0x1a20
[  430.617577]  ? find_get_entries_tag+0x1400/0x1400
[  430.622426]  ? debug_object_destroy+0x2b0/0x2b0
[  430.627100]  ? lock_pi_update_atomic+0x150/0x150
[  430.631858]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.637414]  ? lock_acquire+0x1ed/0x520
[  430.641390]  ? ext4_filemap_fault+0x7a/0xad
[  430.645738]  ? lock_release+0xa00/0xa00
[  430.649713]  ? perf_trace_sched_process_exec+0x860/0x860
[  430.655171]  ? print_usage_bug+0xc0/0xc0
[  430.659234]  ? print_usage_bug+0xc0/0xc0
[  430.663306]  ? down_read+0x8d/0x120
[  430.666947]  ? ext4_filemap_fault+0x7a/0xad
[  430.671272]  ? __down_interruptible+0x700/0x700
[  430.675960]  ext4_filemap_fault+0x82/0xad
[  430.680117]  __do_fault+0x100/0x6b0
[  430.683751]  ? find_held_lock+0x36/0x1c0
[  430.687836]  ? pmd_devmap_trans_unstable+0x220/0x220
[  430.692971]  ? mark_held_locks+0x130/0x130
[  430.697212]  ? mark_held_locks+0x130/0x130
[  430.701477]  ? kasan_check_read+0x11/0x20
[  430.705647]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  430.711194]  __handle_mm_fault+0x3ea0/0x5be0
[  430.715642]  ? perf_trace_lock+0x7a0/0x7a0
[  430.719918]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  430.724807]  ? __switch_to_asm+0x34/0x70
[  430.728875]  ? __switch_to_asm+0x34/0x70
[  430.732960]  ? zap_class+0x640/0x640
[  430.736675]  ? zap_class+0x640/0x640
[  430.740389]  ? __x64_sys_futex+0x53e/0x6a0
[  430.744628]  ? find_held_lock+0x36/0x1c0
[  430.748722]  ? handle_mm_fault+0x42a/0xc70
[  430.752965]  ? lock_downgrade+0x900/0x900
[  430.757121]  ? check_preemption_disabled+0x48/0x280
[  430.762159]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  430.767095]  ? kasan_check_read+0x11/0x20
[  430.771243]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  430.776524]  ? rcu_softirq_qs+0x20/0x20
[  430.780507]  ? trace_hardirqs_off_caller+0x310/0x310
[  430.785618]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  430.791165]  ? sync_mm_rss+0x9a/0x1c0
[  430.794976]  handle_mm_fault+0x54f/0xc70
[  430.799049]  ? __handle_mm_fault+0x5be0/0x5be0
[  430.803671]  ? find_vma+0x34/0x190
[  430.807248]  __do_page_fault+0x5e8/0xe60
[  430.811335]  ? trace_hardirqs_off+0xb8/0x310
[  430.815781]  do_page_fault+0xf2/0x7e0
[  430.819600]  ? vmalloc_sync_all+0x30/0x30
[  430.823769]  ? error_entry+0x70/0xd0
[  430.827503]  ? trace_hardirqs_off_caller+0xbb/0x310
[  430.832536]  ? trace_hardirqs_on_caller+0xc0/0x310
[  430.837504]  ? syscall_return_slowpath+0x5e0/0x5e0
[  430.842461]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.847305]  ? trace_hardirqs_on_caller+0x310/0x310
[  430.852323]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  430.857778]  ? prepare_exit_to_usermode+0x291/0x3b0
[  430.862798]  ? page_fault+0x8/0x30
[  430.866387]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  430.871231]  ? page_fault+0x8/0x30
[  430.874775]  page_fault+0x1e/0x30
[  430.878228] RIP: 0033:0x45ddf3
[  430.881433] Code: Bad RIP value.
[  430.884796] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  430.890170] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  430.897439] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  430.904706] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  430.911977] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  430.919250] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  430.926573] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  430.926578] warn_alloc_show_mem: 1 callbacks suppressed
[  430.926586] Mem-Info:
[  430.933871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  430.939247] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  430.939247]  active_file:17 inactive_file:17 isolated_file:0
[  430.939247]  unevictable:0 dirty:4 writeback:0 unstable:0
[  430.939247]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  430.939247]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  430.939247]  free:13550 free_pcp:124 free_cma:0
[  430.941616] Call Trace:
[  430.951262] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  430.984305]  <IRQ>
[  430.986881] 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
[  431.014675]  dump_stack+0x244/0x39d
[  431.016805] lowmem_reserve[]: 0 2818 6321 6321
[  431.042933]  ? dump_stack_print_info.cold.1+0x20/0x20
[  431.046543] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  431.051129]  warn_alloc.cold.116+0xb7/0x1bd
[  431.056301] lowmem_reserve[]: 0 0 3503 3503
[  431.083850]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  431.088160] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  431.092482]  ? lock_downgrade+0x900/0x900
[  431.097294] lowmem_reserve[]: 0 0 0 0
[  431.126232]  ? trace_hardirqs_off+0xb8/0x310
[  431.130352] 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
[  431.134144]  ? trace_hardirqs_off+0xb8/0x310
[  431.138549] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  431.152094]  __alloc_pages_slowpath+0x2651/0x2de0
[  431.156492] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  431.171267]  ? warn_alloc+0x120/0x120
[  431.176065] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  431.190789]  ? print_usage_bug+0xc0/0xc0
[  431.194579] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  431.203408]  ? warn_alloc+0x120/0x120
[  431.207448] 1360 total pagecache pages
[  431.216027]  ? warn_alloc+0x120/0x120
[  431.219809] 0 pages in swap cache
[  431.223678]  ? print_usage_bug+0xc0/0xc0
[  431.227454] Swap cache stats: add 0, delete 0, find 0/0
[  431.230896]  ? kvm_clock_read+0x18/0x30
[  431.234940] Free swap  = 0kB
[  431.240295]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  431.244259] Total swap = 0kB
[  431.247289]  ? print_usage_bug+0xc0/0xc0
[  431.252284] 1965979 pages RAM
[  431.255294]  ? __lock_acquire+0x62f/0x4c20
[  431.259331] 0 pages HighMem/MovableOnly
[  431.262439]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.266644] 342854 pages reserved
[  431.270617]  ? should_fail+0x22d/0xd01
[  431.276141] 0 pages cma reserved
[  431.279613]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.279631]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.283593] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  431.286858]  ? __lock_acquire+0x62f/0x4c20
[  431.292352] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  431.297210]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  431.297229]  ? __lock_acquire+0x62f/0x4c20
[  431.304097] syz-fuzzer cpuset=/ mems_allowed=0
[  431.308329]  ? should_fail+0x22d/0xd01
[  431.308346]  ? rcu_irq_exit+0x1a2/0x390
[  431.340760]  ? mark_held_locks+0x130/0x130
[  431.345002]  ? mark_held_locks+0x130/0x130
[  431.349242]  ? mark_held_locks+0xc7/0x130
[  431.353396]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  431.358438]  ? zap_class+0x640/0x640
[  431.362172]  ? print_usage_bug+0xc0/0xc0
[  431.366246]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.371795]  ? check_preemption_disabled+0x48/0x280
[  431.376837]  ? __lock_is_held+0xb5/0x140
[  431.380910]  __alloc_pages_nodemask+0xad8/0xea0
[  431.385582]  ? zap_class+0x640/0x640
[  431.389301]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  431.394346]  ? find_held_lock+0x36/0x1c0
[  431.398445]  ? ____cache_alloc_node+0x1c7/0x1e0
[  431.403121]  ? lock_downgrade+0x900/0x900
[  431.407293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.412854]  cache_grow_begin+0xa5/0x8c0
[  431.416930]  ? do_raw_spin_unlock+0xa7/0x330
[  431.421357]  fallback_alloc+0x204/0x2e0
[  431.425354]  ____cache_alloc_node+0x1c7/0x1e0
[  431.429868]  kmem_cache_alloc_node+0xe3/0x730
[  431.434363]  ? ipv6_get_ifaddr+0x42e/0x620
[  431.438641]  __alloc_skb+0x119/0x770
[  431.442402]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.447707]  ? netdev_alloc_frag+0x1f0/0x1f0
[  431.452136]  ? lock_downgrade+0x900/0x900
[  431.456298]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.461837]  ? refcount_sub_and_test_checked+0x203/0x310
[  431.467306]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  431.472759]  ? addrconf_rs_timer+0x690/0x690
[  431.477216]  ndisc_alloc_skb+0x144/0x340
[  431.481284]  ndisc_send_rs+0x331/0x6e0
[  431.485187]  addrconf_rs_timer+0x314/0x690
[  431.489435]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.493685]  call_timer_fn+0x272/0x920
[  431.497573]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.501810]  ? process_timeout+0x40/0x40
[  431.505884]  ? __run_timers+0x7da/0xc70
[  431.509862]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.514360]  ? _raw_spin_unlock_irq+0x27/0x80
[  431.518852]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.523107]  ? lockdep_hardirqs_on+0x296/0x5b0
[  431.527701]  ? trace_hardirqs_on+0xbd/0x310
[  431.532029]  ? kasan_check_read+0x11/0x20
[  431.536197]  ? __run_timers+0x7da/0xc70
[  431.540185]  ? trace_hardirqs_off_caller+0x310/0x310
[  431.545295]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.549537]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  431.553769]  __run_timers+0x7e5/0xc70
[  431.557611]  ? timer_fixup_init+0x70/0x70
[  431.561758]  ? kasan_check_read+0x11/0x20
[  431.565910]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.571215]  ? rcu_softirq_qs+0x20/0x20
[  431.575196]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.580739]  ? check_preemption_disabled+0x48/0x280
[  431.585765]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  431.590523]  ? retint_kernel+0x2d/0x2d
[  431.594431]  ? trace_hardirqs_on_caller+0xc0/0x310
[  431.599367]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  431.604123]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  431.609582]  ? zap_class+0x640/0x640
[  431.613309]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.618852]  ? check_preemption_disabled+0x48/0x280
[  431.623892]  ? __lock_is_held+0xb5/0x140
[  431.627954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.633490]  ? check_preemption_disabled+0x48/0x280
[  431.638542]  run_timer_softirq+0x52/0xb0
[  431.642650]  ? rcu_read_lock_sched_held+0x14f/0x180
[  431.647682]  __do_softirq+0x308/0xb7e
[  431.651491]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  431.655986]  ? lock_downgrade+0x900/0x900
[  431.660147]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  431.665267]  ? pvclock_read_flags+0x160/0x160
[  431.669765]  ? lapic_next_event+0x5a/0x90
[  431.673918]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.679497]  ? kvm_clock_read+0x18/0x30
[  431.683472]  ? kvm_sched_clock_read+0x9/0x20
[  431.687884]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.693439]  ? check_preemption_disabled+0x48/0x280
[  431.698464]  irq_exit+0x17f/0x1c0
[  431.701950]  smp_apic_timer_interrupt+0x1cb/0x760
[  431.706820]  ? smp_reschedule_interrupt+0x109/0x650
[  431.711842]  ? smp_call_function_single_interrupt+0x650/0x650
[  431.717741]  ? interrupt_entry+0xb5/0xc0
[  431.721834]  ? trace_hardirqs_off_caller+0xbb/0x310
[  431.726848]  ? trace_hardirqs_off_caller+0xbb/0x310
[  431.731871]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.736712]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.741727]  ? trace_hardirqs_on_caller+0x310/0x310
[  431.746773]  ? task_prio+0x50/0x50
[  431.750321]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.755864]  ? check_preemption_disabled+0x48/0x280
[  431.760889]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  431.765769]  apic_timer_interrupt+0xf/0x20
[  431.769995]  </IRQ>
[  431.772238] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  431.777194] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  431.796092] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  431.803801] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  431.811079] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  431.818348] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  431.825613] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  431.832888] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  431.840244]  skb_clone+0x1bb/0x500
[  431.843788]  ? skb_split+0x11e0/0x11e0
[  431.847684]  ? preempt_notifier_register+0x200/0x200
[  431.852801]  ? __switch_to_asm+0x34/0x70
[  431.856859]  ? __switch_to_asm+0x34/0x70
[  431.860985]  ? __switch_to_asm+0x40/0x70
[  431.865044]  ? __switch_to_asm+0x34/0x70
[  431.869102]  ? __switch_to_asm+0x40/0x70
[  431.873172]  ? __switch_to_asm+0x40/0x70
[  431.877232]  ? __switch_to_asm+0x34/0x70
[  431.881305]  ? __switch_to_asm+0x34/0x70
[  431.885379]  ? __switch_to_asm+0x40/0x70
[  431.889440]  ? __switch_to_asm+0x34/0x70
[  431.893510]  bpf_clone_redirect+0xb9/0x490
[  431.897753]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  431.902803]  ? __sched_text_start+0x8/0x8
[  431.906954]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  431.911726]  ? find_held_lock+0x36/0x1c0
[  431.915798]  ? lock_acquire+0x1ed/0x520
[  431.919776]  ? bpf_test_run+0x3ee/0x7a0
[  431.923754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  431.929294]  ? check_preemption_disabled+0x48/0x280
[  431.934320]  ? kasan_check_read+0x11/0x20
[  431.938468]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  431.943746]  ? rcu_softirq_qs+0x20/0x20
[  431.947725]  ? preempt_schedule+0x4d/0x60
[  431.951901]  ? ___preempt_schedule+0x16/0x18
[  431.956321]  ? bpf_test_run+0x271/0x7a0
[  431.960313]  ? netlink_diag_dump+0x2a0/0x2a0
[  431.964730]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  431.970266]  ? bpf_test_init.isra.10+0x70/0x100
[  431.974939]  ? bpf_prog_test_run_skb+0x762/0xd60
[  431.979718]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  431.984568]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  431.990105]  ? fput+0x130/0x1a0
[  431.993394]  ? __bpf_prog_get+0x9b/0x290
[  431.997465]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  432.002311]  ? bpf_prog_test_run+0x130/0x1a0
[  432.006737]  ? __x64_sys_bpf+0x3d8/0x520
[  432.010798]  ? bpf_prog_get+0x20/0x20
[  432.014622]  ? do_syscall_64+0x1b9/0x820
[  432.018684]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  432.024052]  ? syscall_return_slowpath+0x5e0/0x5e0
[  432.028982]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.033825]  ? trace_hardirqs_on_caller+0x310/0x310
[  432.038889]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  432.043911]  ? prepare_exit_to_usermode+0x291/0x3b0
[  432.048947]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.053818]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  432.059212] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  432.059298] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  432.066144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  432.066157] Call Trace:
[  432.066165]  <IRQ>
[  432.066183]  dump_stack+0x244/0x39d
[  432.066202]  ? dump_stack_print_info.cold.1+0x20/0x20
[  432.072770] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  432.082031]  warn_alloc.cold.116+0xb7/0x1bd
[  432.084580] syz-executor4 cpuset=syz4 mems_allowed=0
[  432.086752]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  432.120281]  ? lock_downgrade+0x900/0x900
[  432.124442]  ? trace_hardirqs_off+0xb8/0x310
[  432.128872]  ? trace_hardirqs_off+0xb8/0x310
[  432.133278]  ? noop_count+0x40/0x40
[  432.136913]  __alloc_pages_slowpath+0x2651/0x2de0
[  432.141782]  ? check_usage+0x1aa/0x790
[  432.145678]  ? warn_alloc+0x120/0x120
[  432.149500]  ? warn_alloc+0x120/0x120
[  432.153298]  ? __bfs+0xb0/0x780
[  432.156621]  ? warn_alloc+0x120/0x120
[  432.160422]  ? print_usage_bug+0xc0/0xc0
[  432.164514]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.170051]  ? should_fail+0x22d/0xd01
[  432.173943]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  432.179847]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.184966]  ? __lock_acquire+0x62f/0x4c20
[  432.189217]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.194331]  ? should_fail+0x22d/0xd01
[  432.198223]  ? mark_held_locks+0x130/0x130
[  432.202467]  ? mark_held_locks+0x130/0x130
[  432.206708]  ? print_usage_bug+0xc0/0xc0
[  432.210771]  ? find_held_lock+0x36/0x1c0
[  432.214832]  ? zap_class+0x640/0x640
[  432.218554]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.224098]  ? check_preemption_disabled+0x48/0x280
[  432.229121]  ? __lock_is_held+0xb5/0x140
[  432.233213]  __alloc_pages_nodemask+0xad8/0xea0
[  432.237888]  ? zap_class+0x640/0x640
[  432.241607]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  432.246637]  ? find_held_lock+0x36/0x1c0
[  432.250712]  ? ____cache_alloc_node+0x1c7/0x1e0
[  432.255384]  ? lock_downgrade+0x900/0x900
[  432.259540]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.265083]  cache_grow_begin+0xa5/0x8c0
[  432.269144]  ? do_raw_spin_unlock+0xa7/0x330
[  432.273600]  fallback_alloc+0x204/0x2e0
[  432.277579]  ____cache_alloc_node+0x1c7/0x1e0
[  432.282094]  kmem_cache_alloc_node+0xe3/0x730
[  432.286590]  ? mark_held_locks+0xc7/0x130
[  432.290749]  __alloc_skb+0x119/0x770
[  432.294470]  ? netdev_alloc_frag+0x1f0/0x1f0
[  432.298880]  ? do_raw_spin_trylock+0x270/0x270
[  432.303463]  ? kmem_cache_alloc_trace+0x353/0x750
[  432.308312]  ? queue_work_on+0x12c/0x1e0
[  432.312395]  ? switchdev_port_obj_del+0xdc/0x440
[  432.317162]  ? switchdev_trans_item_enqueue+0x260/0x260
[  432.322528]  ? mod_timer+0x631/0x1560
[  432.326325]  ? wake_up_klogd+0x180/0x180
[  432.330385]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  432.335417]  __br_mdb_notify+0x4ff/0x15d0
[  432.339582]  ? __br_mdb_add+0x7f0/0x7f0
[  432.343560]  ? zap_class+0x640/0x640
[  432.347275]  ? br_multicast_group_expired+0x96/0x610
[  432.352394]  br_mdb_notify+0x310/0x410
[  432.356279]  ? br_mdb_dump+0x27b0/0x27b0
[  432.360341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.365884]  br_multicast_group_expired+0x1bc/0x610
[  432.370900]  ? br_mdb_free+0x80/0x80
[  432.374642]  call_timer_fn+0x272/0x920
[  432.378532]  ? br_mdb_free+0x80/0x80
[  432.382246]  ? process_timeout+0x40/0x40
[  432.386315]  ? mark_held_locks+0xc7/0x130
[  432.390463]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.394956]  ? _raw_spin_unlock_irq+0x27/0x80
[  432.399445]  ? br_mdb_free+0x80/0x80
[  432.403163]  ? lockdep_hardirqs_on+0x296/0x5b0
[  432.407749]  ? trace_hardirqs_on+0xbd/0x310
[  432.412067]  ? kasan_check_read+0x11/0x20
[  432.416208]  ? __run_timers+0x7da/0xc70
[  432.420202]  ? trace_hardirqs_off_caller+0x310/0x310
[  432.425309]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  432.429547]  ? br_mdb_free+0x80/0x80
[  432.433269]  __run_timers+0x7e5/0xc70
[  432.437077]  ? timer_fixup_init+0x70/0x70
[  432.441246]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  432.446265]  ? zap_class+0x640/0x640
[  432.449984]  ? print_usage_bug+0xc0/0xc0
[  432.454078]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  432.459313]  ? find_held_lock+0x36/0x1c0
[  432.463377]  ? zap_class+0x640/0x640
[  432.467094]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.472647]  ? check_preemption_disabled+0x48/0x280
[  432.477696]  ? __lock_is_held+0xb5/0x140
[  432.481760]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.487297]  ? check_preemption_disabled+0x48/0x280
[  432.492322]  run_timer_softirq+0x52/0xb0
[  432.496383]  ? rcu_read_lock_sched_held+0x14f/0x180
[  432.501402]  __do_softirq+0x308/0xb7e
[  432.505213]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  432.509711]  ? lock_downgrade+0x900/0x900
[  432.513893]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  432.519008]  ? pvclock_read_flags+0x160/0x160
[  432.523503]  ? lapic_next_event+0x5a/0x90
[  432.527656]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.533196]  ? kvm_clock_read+0x18/0x30
[  432.537174]  ? kvm_sched_clock_read+0x9/0x20
[  432.541582]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.547123]  ? check_preemption_disabled+0x48/0x280
[  432.552179]  irq_exit+0x17f/0x1c0
[  432.555637]  smp_apic_timer_interrupt+0x1cb/0x760
[  432.560482]  ? smp_reschedule_interrupt+0x109/0x650
[  432.565514]  ? smp_call_function_single_interrupt+0x650/0x650
[  432.571432]  ? interrupt_entry+0xb5/0xc0
[  432.575502]  ? trace_hardirqs_off_caller+0xbb/0x310
[  432.580526]  ? trace_hardirqs_off_caller+0xbb/0x310
[  432.585544]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.590387]  ? trace_hardirqs_on_caller+0x310/0x310
[  432.595416]  ? trace_hardirqs_on_caller+0x310/0x310
[  432.600450]  ? task_prio+0x50/0x50
[  432.603998]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.609537]  ? check_preemption_disabled+0x48/0x280
[  432.614561]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  432.619415]  apic_timer_interrupt+0xf/0x20
[  432.623643]  </IRQ>
[  432.625912] RIP: 0010:lock_acquire+0x268/0x520
[  432.630543] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  432.649441] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  432.657169] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  432.664440] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  432.671722] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  432.679006] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  432.686270] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  432.693592]  ? lruvec_lru_size+0x450/0x450
[  432.697829]  ? kasan_check_read+0x11/0x20
[  432.702006]  ? lock_release+0xa00/0xa00
[  432.705989]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  432.710949]  down_read_trylock+0xda/0x140
[  432.715110]  ? shrink_slab+0x207/0x8c0
[  432.719001]  ? downgrade_write+0x270/0x270
[  432.723248]  shrink_slab+0x207/0x8c0
[  432.726964]  ? shrink_active_list+0x1f00/0x1f00
[  432.731644]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  432.737273]  ? __lock_acquire+0x62f/0x4c20
[  432.741513]  ? percpu_ref_get_many+0x240/0x240
[  432.746112]  ? print_usage_bug+0xc0/0xc0
[  432.750235]  shrink_node+0x431/0x16b0
[  432.754055]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  432.759372]  ? shrink_node_memcg+0x18f0/0x18f0
[  432.763965]  ? kvm_clock_read+0x18/0x30
[  432.767980]  ? ktime_get+0x2c1/0x400
[  432.771715]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  432.776215]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  432.781756]  ? __cpuset_node_allowed+0x19b/0x660
[  432.786516]  ? mark_held_locks+0x130/0x130
[  432.790763]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  432.796475]  ? zap_class+0x640/0x640
[  432.800200]  do_try_to_free_pages+0x3e7/0x1290
[  432.804785]  ? zap_class+0x640/0x640
[  432.808531]  ? shrink_node+0x16b0/0x16b0
[  432.812594]  ? __lock_is_held+0xb5/0x140
[  432.816671]  try_to_free_pages+0x4d0/0xb90
[  432.820917]  ? do_try_to_free_pages+0x1290/0x1290
[  432.825784]  ? lock_acquire+0x1ed/0x520
[  432.829763]  ? set_page_refcounted+0x280/0x280
[  432.834357]  ? lock_release+0xa00/0xa00
[  432.838337]  ? _raw_spin_unlock_irq+0x60/0x80
[  432.842835]  ? psi_memstall_enter+0x240/0x2b0
[  432.847331]  ? psi_memstall_tick+0x230/0x230
[  432.851753]  __alloc_pages_slowpath+0xa48/0x2de0
[  432.856539]  ? warn_alloc+0x120/0x120
[  432.860339]  ? mark_held_locks+0x130/0x130
[  432.864580]  ? find_get_entry+0xaae/0x1120
[  432.868835]  ? filemap_map_pages+0x1a20/0x1a20
[  432.873427]  ? zap_class+0x640/0x640
[  432.877158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  432.882707]  ? check_preemption_disabled+0x48/0x280
[  432.887731]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  432.893273]  ? should_fail+0x22d/0xd01
[  432.897174]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  432.902283]  ? zap_class+0x640/0x640
[  432.906025]  ? __lock_is_held+0xb5/0x140
[  432.910097]  ? mark_held_locks+0x130/0x130
[  432.914337]  ? lock_release+0xa00/0xa00
[  432.918313]  ? perf_trace_sched_process_exec+0x860/0x860
[  432.923765]  ? xa_load+0x2ba/0x460
[  432.927308]  ? lock_downgrade+0x900/0x900
[  432.931462]  ? __might_sleep+0x95/0x190
[  432.935454]  __alloc_pages_nodemask+0xad8/0xea0
[  432.940135]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  432.945199]  ? __page_cache_alloc+0x191/0x5c0
[  432.949870]  ? xa_load+0x2e1/0x460
[  432.953414]  ? xa_clear_mark+0x40/0x40
[  432.957304]  ? zap_class+0x640/0x640
[  432.961030]  ? zap_class+0x640/0x640
[  432.964743]  ? zap_class+0x640/0x640
[  432.968461]  ? __do_page_cache_readahead+0x663/0x810
[  432.973573]  ? find_held_lock+0x36/0x1c0
[  432.977645]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  432.983198]  alloc_pages_current+0x173/0x350
[  432.987649]  __page_cache_alloc+0x38c/0x5c0
[  432.992002]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  432.996965]  ? kasan_check_read+0x11/0x20
[  433.001114]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.006392]  ? generic_perform_write+0x6a0/0x6a0
[  433.011177]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.016754]  ? check_preemption_disabled+0x48/0x280
[  433.021784]  filemap_fault+0x1595/0x25f0
[  433.025859]  ? __lock_page_or_retry+0xa00/0xa00
[  433.030533]  ? mark_held_locks+0x130/0x130
[  433.034778]  ? filemap_map_pages+0xd6b/0x1a20
[  433.039289]  ? lock_downgrade+0x900/0x900
[  433.043450]  ? check_preemption_disabled+0x48/0x280
[  433.048489]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.053478]  ? kasan_check_read+0x11/0x20
[  433.057624]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.062902]  ? rcu_softirq_qs+0x20/0x20
[  433.066943]  ? filemap_map_pages+0xd92/0x1a20
[  433.071466]  ? find_get_entries_tag+0x1400/0x1400
[  433.076327]  ? debug_object_destroy+0x2b0/0x2b0
[  433.081488]  ? lock_pi_update_atomic+0x150/0x150
[  433.086252]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.091822]  ? lock_acquire+0x1ed/0x520
[  433.095801]  ? ext4_filemap_fault+0x7a/0xad
[  433.100148]  ? lock_release+0xa00/0xa00
[  433.104165]  ? perf_trace_sched_process_exec+0x860/0x860
[  433.109618]  ? print_usage_bug+0xc0/0xc0
[  433.113681]  ? print_usage_bug+0xc0/0xc0
[  433.117762]  ? down_read+0x8d/0x120
[  433.121389]  ? ext4_filemap_fault+0x7a/0xad
[  433.125715]  ? __down_interruptible+0x700/0x700
[  433.130395]  ext4_filemap_fault+0x82/0xad
[  433.134549]  __do_fault+0x100/0x6b0
[  433.138181]  ? find_held_lock+0x36/0x1c0
[  433.142249]  ? pmd_devmap_trans_unstable+0x220/0x220
[  433.147357]  ? mark_held_locks+0x130/0x130
[  433.151595]  ? mark_held_locks+0x130/0x130
[  433.155843]  ? kasan_check_read+0x11/0x20
[  433.160003]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.165549]  __handle_mm_fault+0x3ea0/0x5be0
[  433.169962]  ? perf_trace_lock+0x7a0/0x7a0
[  433.174208]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  433.179071]  ? __switch_to_asm+0x34/0x70
[  433.183132]  ? __switch_to_asm+0x34/0x70
[  433.187214]  ? zap_class+0x640/0x640
[  433.190937]  ? zap_class+0x640/0x640
[  433.194658]  ? __x64_sys_futex+0x53e/0x6a0
[  433.198898]  ? find_held_lock+0x36/0x1c0
[  433.202979]  ? handle_mm_fault+0x42a/0xc70
[  433.207229]  ? lock_downgrade+0x900/0x900
[  433.211394]  ? check_preemption_disabled+0x48/0x280
[  433.216418]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  433.221349]  ? kasan_check_read+0x11/0x20
[  433.225497]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.230775]  ? rcu_softirq_qs+0x20/0x20
[  433.234751]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.239874]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.245440]  ? sync_mm_rss+0x9a/0x1c0
[  433.249250]  handle_mm_fault+0x54f/0xc70
[  433.253318]  ? __handle_mm_fault+0x5be0/0x5be0
[  433.257940]  ? find_vma+0x34/0x190
[  433.261488]  __do_page_fault+0x5e8/0xe60
[  433.265550]  ? trace_hardirqs_off+0xb8/0x310
[  433.269988]  do_page_fault+0xf2/0x7e0
[  433.273804]  ? vmalloc_sync_all+0x30/0x30
[  433.277969]  ? error_entry+0x70/0xd0
[  433.281687]  ? trace_hardirqs_off_caller+0xbb/0x310
[  433.286704]  ? trace_hardirqs_on_caller+0xc0/0x310
[  433.291666]  ? syscall_return_slowpath+0x5e0/0x5e0
[  433.296595]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.301437]  ? trace_hardirqs_on_caller+0x310/0x310
[  433.306472]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  433.311947]  ? prepare_exit_to_usermode+0x291/0x3b0
[  433.316964]  ? page_fault+0x8/0x30
[  433.320510]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  433.325353]  ? page_fault+0x8/0x30
[  433.328890]  page_fault+0x1e/0x30
[  433.332342] RIP: 0033:0x45ddf3
[  433.335547] Code: Bad RIP value.
[  433.338916] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  433.344311] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  433.351576] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  433.358837] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  433.366101] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  433.373382] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  433.380690] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  433.380712] warn_alloc_show_mem: 1 callbacks suppressed
[  433.380716] Mem-Info:
[  433.387980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  433.393348] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  433.393348]  active_file:17 inactive_file:17 isolated_file:0
[  433.393348]  unevictable:0 dirty:4 writeback:0 unstable:0
[  433.393348]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  433.393348]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  433.393348]  free:13550 free_pcp:124 free_cma:0
[  433.395721] Call Trace:
[  433.405104] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  433.438124]  <IRQ>
[  433.440694] 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
[  433.468455]  dump_stack+0x244/0x39d
[  433.470573] lowmem_reserve[]: 0 2818 6321 6321
[  433.496680]  ? dump_stack_print_info.cold.1+0x20/0x20
[  433.500281] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  433.504885]  warn_alloc.cold.116+0xb7/0x1bd
[  433.510042] lowmem_reserve[]: 0 0 3503 3503
[  433.537363]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  433.541658] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  433.545975]  ? lock_downgrade+0x900/0x900
[  433.550793] lowmem_reserve[]: 0 0 0 0
[  433.579719]  ? trace_hardirqs_off+0xb8/0x310
[  433.583840] 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
[  433.587668]  ? trace_hardirqs_off+0xb8/0x310
[  433.592059] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  433.605586]  __alloc_pages_slowpath+0x2651/0x2de0
[  433.609965] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  433.624725]  ? warn_alloc+0x120/0x120
[  433.629530] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  433.644265]  ? print_usage_bug+0xc0/0xc0
[  433.648042] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  433.656868]  ? warn_alloc+0x120/0x120
[  433.660905] 1360 total pagecache pages
[  433.669480]  ? warn_alloc+0x120/0x120
[  433.673266] 0 pages in swap cache
[  433.677165]  ? print_usage_bug+0xc0/0xc0
[  433.680978] Swap cache stats: add 0, delete 0, find 0/0
[  433.684440]  ? kvm_clock_read+0x18/0x30
[  433.688474] Free swap  = 0kB
[  433.693833]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  433.697795] Total swap = 0kB
[  433.700827]  ? print_usage_bug+0xc0/0xc0
[  433.705815] 1965979 pages RAM
[  433.708827]  ? __lock_acquire+0x62f/0x4c20
[  433.712863] 0 pages HighMem/MovableOnly
[  433.715963]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  433.720178] 342854 pages reserved
[  433.724145]  ? should_fail+0x22d/0xd01
[  433.729660] 0 pages cma reserved
[  433.733106]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.737146] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  433.740326]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.745582] syz-fuzzer cpuset=/ mems_allowed=0
[  433.755799]  ? __lock_acquire+0x62f/0x4c20
[  433.769682]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  433.774783]  ? __lock_acquire+0x62f/0x4c20
[  433.779013]  ? should_fail+0x22d/0xd01
[  433.782913]  ? rcu_irq_exit+0x1a2/0x390
[  433.786914]  ? mark_held_locks+0x130/0x130
[  433.791170]  ? mark_held_locks+0x130/0x130
[  433.795410]  ? mark_held_locks+0xc7/0x130
[  433.799565]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  433.804583]  ? zap_class+0x640/0x640
[  433.808299]  ? print_usage_bug+0xc0/0xc0
[  433.812415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.817977]  ? check_preemption_disabled+0x48/0x280
[  433.823002]  ? __lock_is_held+0xb5/0x140
[  433.827071]  __alloc_pages_nodemask+0xad8/0xea0
[  433.831739]  ? zap_class+0x640/0x640
[  433.835483]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  433.840509]  ? find_held_lock+0x36/0x1c0
[  433.844577]  ? ____cache_alloc_node+0x1c7/0x1e0
[  433.849248]  ? lock_downgrade+0x900/0x900
[  433.853403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.858948]  cache_grow_begin+0xa5/0x8c0
[  433.863023]  ? do_raw_spin_unlock+0xa7/0x330
[  433.867462]  fallback_alloc+0x204/0x2e0
[  433.871452]  ____cache_alloc_node+0x1c7/0x1e0
[  433.875959]  kmem_cache_alloc_node+0xe3/0x730
[  433.880467]  ? ipv6_get_ifaddr+0x42e/0x620
[  433.884716]  __alloc_skb+0x119/0x770
[  433.888438]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  433.893734]  ? netdev_alloc_frag+0x1f0/0x1f0
[  433.898142]  ? lock_downgrade+0x900/0x900
[  433.902308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  433.907864]  ? refcount_sub_and_test_checked+0x203/0x310
[  433.913319]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  433.918787]  ? addrconf_rs_timer+0x690/0x690
[  433.923228]  ndisc_alloc_skb+0x144/0x340
[  433.927293]  ndisc_send_rs+0x331/0x6e0
[  433.931215]  addrconf_rs_timer+0x314/0x690
[  433.935486]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.939732]  call_timer_fn+0x272/0x920
[  433.943619]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.947852]  ? process_timeout+0x40/0x40
[  433.951925]  ? __run_timers+0x7da/0xc70
[  433.955907]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.960408]  ? _raw_spin_unlock_irq+0x27/0x80
[  433.964910]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.969147]  ? lockdep_hardirqs_on+0x296/0x5b0
[  433.973747]  ? trace_hardirqs_on+0xbd/0x310
[  433.978076]  ? kasan_check_read+0x11/0x20
[  433.982222]  ? __run_timers+0x7da/0xc70
[  433.986211]  ? trace_hardirqs_off_caller+0x310/0x310
[  433.991319]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.995558]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  433.999792]  __run_timers+0x7e5/0xc70
[  434.003606]  ? timer_fixup_init+0x70/0x70
[  434.007754]  ? kasan_check_read+0x11/0x20
[  434.011916]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.017192]  ? rcu_softirq_qs+0x20/0x20
[  434.021193]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.026733]  ? check_preemption_disabled+0x48/0x280
[  434.031759]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  434.036570]  ? retint_kernel+0x2d/0x2d
[  434.040463]  ? trace_hardirqs_on_caller+0xc0/0x310
[  434.045391]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  434.050177]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  434.055634]  ? zap_class+0x640/0x640
[  434.059358]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.064897]  ? check_preemption_disabled+0x48/0x280
[  434.069937]  ? __lock_is_held+0xb5/0x140
[  434.074000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.079587]  ? check_preemption_disabled+0x48/0x280
[  434.084608]  run_timer_softirq+0x52/0xb0
[  434.088704]  ? rcu_read_lock_sched_held+0x14f/0x180
[  434.093722]  __do_softirq+0x308/0xb7e
[  434.097528]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  434.102035]  ? lock_downgrade+0x900/0x900
[  434.106193]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  434.111308]  ? pvclock_read_flags+0x160/0x160
[  434.115807]  ? lapic_next_event+0x5a/0x90
[  434.119960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.125508]  ? kvm_clock_read+0x18/0x30
[  434.129482]  ? kvm_sched_clock_read+0x9/0x20
[  434.133891]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.139437]  ? check_preemption_disabled+0x48/0x280
[  434.144498]  irq_exit+0x17f/0x1c0
[  434.147966]  smp_apic_timer_interrupt+0x1cb/0x760
[  434.152824]  ? smp_reschedule_interrupt+0x109/0x650
[  434.157846]  ? smp_call_function_single_interrupt+0x650/0x650
[  434.163730]  ? interrupt_entry+0xb5/0xc0
[  434.167795]  ? trace_hardirqs_off_caller+0xbb/0x310
[  434.172814]  ? trace_hardirqs_off_caller+0xbb/0x310
[  434.177832]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.182677]  ? trace_hardirqs_on_caller+0x310/0x310
[  434.187707]  ? trace_hardirqs_on_caller+0x310/0x310
[  434.192723]  ? task_prio+0x50/0x50
[  434.196276]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.201815]  ? check_preemption_disabled+0x48/0x280
[  434.206851]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.211731]  apic_timer_interrupt+0xf/0x20
[  434.215975]  </IRQ>
[  434.218220] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  434.223160] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  434.242058] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  434.249769] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  434.257035] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  434.264300] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  434.271565] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  434.278844] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  434.286194]  skb_clone+0x1bb/0x500
[  434.289741]  ? skb_split+0x11e0/0x11e0
[  434.293635]  ? preempt_notifier_register+0x200/0x200
[  434.298737]  ? __switch_to_asm+0x34/0x70
[  434.302795]  ? __switch_to_asm+0x34/0x70
[  434.306856]  ? __switch_to_asm+0x40/0x70
[  434.310913]  ? __switch_to_asm+0x34/0x70
[  434.314975]  ? __switch_to_asm+0x40/0x70
[  434.319037]  ? __switch_to_asm+0x40/0x70
[  434.323108]  ? __switch_to_asm+0x34/0x70
[  434.327178]  ? __switch_to_asm+0x34/0x70
[  434.331239]  ? __switch_to_asm+0x40/0x70
[  434.335300]  ? __switch_to_asm+0x34/0x70
[  434.339365]  bpf_clone_redirect+0xb9/0x490
[  434.343638]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  434.348661]  ? __sched_text_start+0x8/0x8
[  434.352814]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  434.357582]  ? find_held_lock+0x36/0x1c0
[  434.361673]  ? lock_acquire+0x1ed/0x520
[  434.365666]  ? bpf_test_run+0x3ee/0x7a0
[  434.369641]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.375189]  ? check_preemption_disabled+0x48/0x280
[  434.380209]  ? kasan_check_read+0x11/0x20
[  434.384353]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  434.389660]  ? rcu_softirq_qs+0x20/0x20
[  434.393641]  ? preempt_schedule+0x4d/0x60
[  434.397791]  ? ___preempt_schedule+0x16/0x18
[  434.402238]  ? bpf_test_run+0x271/0x7a0
[  434.406245]  ? netlink_diag_dump+0x2a0/0x2a0
[  434.410669]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.416204]  ? bpf_test_init.isra.10+0x70/0x100
[  434.420903]  ? bpf_prog_test_run_skb+0x762/0xd60
[  434.425666]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  434.430520]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  434.436054]  ? fput+0x130/0x1a0
[  434.439338]  ? __bpf_prog_get+0x9b/0x290
[  434.443407]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  434.448258]  ? bpf_prog_test_run+0x130/0x1a0
[  434.452668]  ? __x64_sys_bpf+0x3d8/0x520
[  434.456728]  ? bpf_prog_get+0x20/0x20
[  434.460549]  ? do_syscall_64+0x1b9/0x820
[  434.464606]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  434.469997]  ? syscall_return_slowpath+0x5e0/0x5e0
[  434.474926]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.479789]  ? trace_hardirqs_on_caller+0x310/0x310
[  434.484809]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  434.489859]  ? prepare_exit_to_usermode+0x291/0x3b0
[  434.494880]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  434.499752]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  434.505136] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  434.505230] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  434.512073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  434.512079] Call Trace:
[  434.512086]  <IRQ>
[  434.512104]  dump_stack+0x244/0x39d
[  434.512122]  ? dump_stack_print_info.cold.1+0x20/0x20
[  434.518657] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  434.527956]  warn_alloc.cold.116+0xb7/0x1bd
[  434.530505] syz-executor4 cpuset=syz4 mems_allowed=0
[  434.532648]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  434.566201]  ? lock_downgrade+0x900/0x900
[  434.570376]  ? trace_hardirqs_off+0xb8/0x310
[  434.574817]  ? trace_hardirqs_off+0xb8/0x310
[  434.579238]  __alloc_pages_slowpath+0x2651/0x2de0
[  434.584111]  ? warn_alloc+0x120/0x120
[  434.587948]  ? warn_alloc+0x120/0x120
[  434.591754]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  434.596771]  ? warn_alloc+0x120/0x120
[  434.600591]  ? print_usage_bug+0xc0/0xc0
[  434.604691]  ? print_usage_bug+0xc0/0xc0
[  434.608752]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  434.613954]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.619509]  ? should_fail+0x22d/0xd01
[  434.623406]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  434.628510]  ? __lock_acquire+0x62f/0x4c20
[  434.632777]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  434.637882]  ? should_fail+0x22d/0xd01
[  434.641782]  ? mark_held_locks+0x130/0x130
[  434.646019]  ? mark_held_locks+0x130/0x130
[  434.650269]  ? print_usage_bug+0xc0/0xc0
[  434.654360]  ? find_held_lock+0x36/0x1c0
[  434.658424]  ? zap_class+0x640/0x640
[  434.662158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.667701]  ? check_preemption_disabled+0x48/0x280
[  434.672748]  ? __lock_is_held+0xb5/0x140
[  434.676818]  __alloc_pages_nodemask+0xad8/0xea0
[  434.681490]  ? zap_class+0x640/0x640
[  434.685214]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  434.690258]  ? find_held_lock+0x36/0x1c0
[  434.694347]  ? ____cache_alloc_node+0x1c7/0x1e0
[  434.699019]  ? lock_downgrade+0x900/0x900
[  434.703183]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.708726]  cache_grow_begin+0xa5/0x8c0
[  434.712788]  ? do_raw_spin_unlock+0xa7/0x330
[  434.717208]  fallback_alloc+0x204/0x2e0
[  434.721192]  ____cache_alloc_node+0x1c7/0x1e0
[  434.725698]  kmem_cache_alloc_node+0xe3/0x730
[  434.730195]  ? mark_held_locks+0xc7/0x130
[  434.734354]  __alloc_skb+0x119/0x770
[  434.738082]  ? netdev_alloc_frag+0x1f0/0x1f0
[  434.742504]  ? do_raw_spin_trylock+0x270/0x270
[  434.747102]  ? kmem_cache_alloc_trace+0x353/0x750
[  434.751953]  ? queue_work_on+0x12c/0x1e0
[  434.756020]  ? switchdev_port_obj_del+0xdc/0x440
[  434.760777]  ? switchdev_trans_item_enqueue+0x260/0x260
[  434.766166]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  434.771225]  __br_mdb_notify+0x4ff/0x15d0
[  434.775391]  ? __br_mdb_add+0x7f0/0x7f0
[  434.779388]  ? zap_class+0x640/0x640
[  434.783110]  ? br_multicast_group_expired+0x96/0x610
[  434.788215]  ? lock_downgrade+0x900/0x900
[  434.792370]  br_mdb_notify+0x310/0x410
[  434.796268]  ? br_mdb_dump+0x27b0/0x27b0
[  434.800342]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.805895]  br_multicast_group_expired+0x1bc/0x610
[  434.810922]  ? br_mdb_free+0x80/0x80
[  434.814684]  call_timer_fn+0x272/0x920
[  434.818572]  ? br_mdb_free+0x80/0x80
[  434.822286]  ? process_timeout+0x40/0x40
[  434.826358]  ? mark_held_locks+0xc7/0x130
[  434.830513]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.835011]  ? _raw_spin_unlock_irq+0x27/0x80
[  434.839519]  ? br_mdb_free+0x80/0x80
[  434.843235]  ? lockdep_hardirqs_on+0x296/0x5b0
[  434.847838]  ? trace_hardirqs_on+0xbd/0x310
[  434.852172]  ? kasan_check_read+0x11/0x20
[  434.856324]  ? __run_timers+0x7da/0xc70
[  434.860304]  ? trace_hardirqs_off_caller+0x310/0x310
[  434.865412]  ? br_mdb_free+0x80/0x80
[  434.869128]  ? br_mdb_free+0x80/0x80
[  434.872918]  __run_timers+0x7e5/0xc70
[  434.876750]  ? timer_fixup_init+0x70/0x70
[  434.880910]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  434.885950]  ? zap_class+0x640/0x640
[  434.889675]  ? print_usage_bug+0xc0/0xc0
[  434.893744]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  434.898978]  ? find_held_lock+0x36/0x1c0
[  434.903056]  ? zap_class+0x640/0x640
[  434.906775]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.912316]  ? check_preemption_disabled+0x48/0x280
[  434.917342]  ? __lock_is_held+0xb5/0x140
[  434.921411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.926956]  ? check_preemption_disabled+0x48/0x280
[  434.931994]  run_timer_softirq+0x52/0xb0
[  434.936059]  ? rcu_read_lock_sched_held+0x14f/0x180
[  434.941075]  __do_softirq+0x308/0xb7e
[  434.944879]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  434.949556]  ? lock_downgrade+0x900/0x900
[  434.953713]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  434.958825]  ? pvclock_read_flags+0x160/0x160
[  434.963349]  ? lapic_next_event+0x5a/0x90
[  434.967502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  434.973046]  ? kvm_clock_read+0x18/0x30
[  434.977038]  ? kvm_sched_clock_read+0x9/0x20
[  434.981452]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  434.986992]  ? check_preemption_disabled+0x48/0x280
[  434.992034]  irq_exit+0x17f/0x1c0
[  434.995508]  smp_apic_timer_interrupt+0x1cb/0x760
[  435.000352]  ? smp_reschedule_interrupt+0x109/0x650
[  435.005373]  ? smp_call_function_single_interrupt+0x650/0x650
[  435.011258]  ? interrupt_entry+0xb5/0xc0
[  435.015324]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.020356]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.025403]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.030246]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.035268]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.040283]  ? task_prio+0x50/0x50
[  435.043841]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.049383]  ? check_preemption_disabled+0x48/0x280
[  435.054409]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.059278]  apic_timer_interrupt+0xf/0x20
[  435.063510]  </IRQ>
[  435.065751] RIP: 0010:lock_acquire+0x268/0x520
[  435.070341] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  435.089731] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  435.097441] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  435.104706] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  435.111973] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  435.119240] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  435.126506] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  435.133814]  ? lruvec_lru_size+0x450/0x450
[  435.138050]  ? kasan_check_read+0x11/0x20
[  435.142203]  ? lock_release+0xa00/0xa00
[  435.146190]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  435.151130]  down_read_trylock+0xda/0x140
[  435.155291]  ? shrink_slab+0x207/0x8c0
[  435.159184]  ? downgrade_write+0x270/0x270
[  435.163441]  shrink_slab+0x207/0x8c0
[  435.167162]  ? shrink_active_list+0x1f00/0x1f00
[  435.171845]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  435.177472]  ? __lock_acquire+0x62f/0x4c20
[  435.181713]  ? percpu_ref_get_many+0x240/0x240
[  435.186313]  ? print_usage_bug+0xc0/0xc0
[  435.190381]  shrink_node+0x431/0x16b0
[  435.194192]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  435.199492]  ? shrink_node_memcg+0x18f0/0x18f0
[  435.204087]  ? kvm_clock_read+0x18/0x30
[  435.208073]  ? ktime_get+0x2c1/0x400
[  435.211792]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  435.216310]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  435.221848]  ? __cpuset_node_allowed+0x19b/0x660
[  435.226606]  ? mark_held_locks+0x130/0x130
[  435.230842]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  435.236578]  ? zap_class+0x640/0x640
[  435.240313]  do_try_to_free_pages+0x3e7/0x1290
[  435.244922]  ? zap_class+0x640/0x640
[  435.248702]  ? shrink_node+0x16b0/0x16b0
[  435.252766]  ? __lock_is_held+0xb5/0x140
[  435.256857]  try_to_free_pages+0x4d0/0xb90
[  435.261095]  ? do_try_to_free_pages+0x1290/0x1290
[  435.265952]  ? lock_acquire+0x1ed/0x520
[  435.269930]  ? set_page_refcounted+0x280/0x280
[  435.274536]  ? lock_release+0xa00/0xa00
[  435.278516]  ? _raw_spin_unlock_irq+0x60/0x80
[  435.283028]  ? psi_memstall_enter+0x240/0x2b0
[  435.287523]  ? psi_memstall_tick+0x230/0x230
[  435.291947]  __alloc_pages_slowpath+0xa48/0x2de0
[  435.296774]  ? warn_alloc+0x120/0x120
[  435.300576]  ? mark_held_locks+0x130/0x130
[  435.304816]  ? find_get_entry+0xaae/0x1120
[  435.309061]  ? filemap_map_pages+0x1a20/0x1a20
[  435.313647]  ? zap_class+0x640/0x640
[  435.317367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.322909]  ? check_preemption_disabled+0x48/0x280
[  435.327937]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.333478]  ? should_fail+0x22d/0xd01
[  435.337372]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  435.342494]  ? zap_class+0x640/0x640
[  435.346257]  ? __lock_is_held+0xb5/0x140
[  435.350323]  ? mark_held_locks+0x130/0x130
[  435.354600]  ? lock_release+0xa00/0xa00
[  435.358594]  ? perf_trace_sched_process_exec+0x860/0x860
[  435.364059]  ? xa_load+0x2ba/0x460
[  435.367602]  ? lock_downgrade+0x900/0x900
[  435.371754]  ? __might_sleep+0x95/0x190
[  435.375751]  __alloc_pages_nodemask+0xad8/0xea0
[  435.380427]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  435.385453]  ? __page_cache_alloc+0x191/0x5c0
[  435.389944]  ? xa_load+0x2e1/0x460
[  435.393479]  ? xa_clear_mark+0x40/0x40
[  435.397366]  ? zap_class+0x640/0x640
[  435.401091]  ? zap_class+0x640/0x640
[  435.404819]  ? zap_class+0x640/0x640
[  435.408530]  ? __do_page_cache_readahead+0x663/0x810
[  435.413633]  ? find_held_lock+0x36/0x1c0
[  435.417725]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  435.423282]  alloc_pages_current+0x173/0x350
[  435.427710]  __page_cache_alloc+0x38c/0x5c0
[  435.432029]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  435.436977]  ? kasan_check_read+0x11/0x20
[  435.441127]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.446416]  ? generic_perform_write+0x6a0/0x6a0
[  435.451190]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.456729]  ? check_preemption_disabled+0x48/0x280
[  435.461752]  filemap_fault+0x1595/0x25f0
[  435.465874]  ? __lock_page_or_retry+0xa00/0xa00
[  435.470539]  ? mark_held_locks+0x130/0x130
[  435.474777]  ? filemap_map_pages+0xd6b/0x1a20
[  435.479290]  ? lock_downgrade+0x900/0x900
[  435.483433]  ? check_preemption_disabled+0x48/0x280
[  435.488450]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  435.493379]  ? kasan_check_read+0x11/0x20
[  435.497525]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.502825]  ? rcu_softirq_qs+0x20/0x20
[  435.506832]  ? filemap_map_pages+0xd92/0x1a20
[  435.511351]  ? find_get_entries_tag+0x1400/0x1400
[  435.516208]  ? debug_object_destroy+0x2b0/0x2b0
[  435.520893]  ? lock_pi_update_atomic+0x150/0x150
[  435.525649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.531199]  ? lock_acquire+0x1ed/0x520
[  435.535189]  ? ext4_filemap_fault+0x7a/0xad
[  435.539521]  ? lock_release+0xa00/0xa00
[  435.543498]  ? perf_trace_sched_process_exec+0x860/0x860
[  435.548953]  ? print_usage_bug+0xc0/0xc0
[  435.553041]  ? print_usage_bug+0xc0/0xc0
[  435.557114]  ? down_read+0x8d/0x120
[  435.560743]  ? ext4_filemap_fault+0x7a/0xad
[  435.565068]  ? __down_interruptible+0x700/0x700
[  435.569742]  ext4_filemap_fault+0x82/0xad
[  435.573896]  __do_fault+0x100/0x6b0
[  435.577542]  ? find_held_lock+0x36/0x1c0
[  435.581608]  ? pmd_devmap_trans_unstable+0x220/0x220
[  435.586729]  ? mark_held_locks+0x130/0x130
[  435.590964]  ? mark_held_locks+0x130/0x130
[  435.595214]  ? kasan_check_read+0x11/0x20
[  435.599362]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  435.604952]  __handle_mm_fault+0x3ea0/0x5be0
[  435.609363]  ? perf_trace_lock+0x7a0/0x7a0
[  435.613608]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  435.618462]  ? __switch_to_asm+0x34/0x70
[  435.622537]  ? __switch_to_asm+0x34/0x70
[  435.626615]  ? zap_class+0x640/0x640
[  435.630328]  ? zap_class+0x640/0x640
[  435.634058]  ? __x64_sys_futex+0x53e/0x6a0
[  435.638300]  ? find_held_lock+0x36/0x1c0
[  435.642373]  ? handle_mm_fault+0x42a/0xc70
[  435.646613]  ? lock_downgrade+0x900/0x900
[  435.650767]  ? check_preemption_disabled+0x48/0x280
[  435.655785]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  435.660717]  ? kasan_check_read+0x11/0x20
[  435.664864]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  435.670139]  ? rcu_softirq_qs+0x20/0x20
[  435.674124]  ? trace_hardirqs_off_caller+0x310/0x310
[  435.679243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  435.684795]  ? sync_mm_rss+0x9a/0x1c0
[  435.688600]  handle_mm_fault+0x54f/0xc70
[  435.692666]  ? __handle_mm_fault+0x5be0/0x5be0
[  435.697256]  ? find_vma+0x34/0x190
[  435.700803]  __do_page_fault+0x5e8/0xe60
[  435.704889]  ? trace_hardirqs_off+0xb8/0x310
[  435.709329]  do_page_fault+0xf2/0x7e0
[  435.713135]  ? vmalloc_sync_all+0x30/0x30
[  435.717293]  ? error_entry+0x70/0xd0
[  435.721009]  ? trace_hardirqs_off_caller+0xbb/0x310
[  435.726026]  ? trace_hardirqs_on_caller+0xc0/0x310
[  435.730961]  ? syscall_return_slowpath+0x5e0/0x5e0
[  435.735895]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.740754]  ? trace_hardirqs_on_caller+0x310/0x310
[  435.745770]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  435.751244]  ? prepare_exit_to_usermode+0x291/0x3b0
[  435.756263]  ? page_fault+0x8/0x30
[  435.759806]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  435.764683]  ? page_fault+0x8/0x30
[  435.768232]  page_fault+0x1e/0x30
[  435.771702] RIP: 0033:0x45ddf3
[  435.774904] Code: Bad RIP value.
[  435.778271] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  435.783629] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  435.790903] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  435.798186] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  435.805453] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  435.812719] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  435.820015] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  435.820020] warn_alloc_show_mem: 1 callbacks suppressed
[  435.820028] Mem-Info:
[  435.827331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  435.832705] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  435.832705]  active_file:17 inactive_file:17 isolated_file:0
[  435.832705]  unevictable:0 dirty:4 writeback:0 unstable:0
[  435.832705]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  435.832705]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  435.832705]  free:13550 free_pcp:124 free_cma:0
[  435.835077] Call Trace:
[  435.844468] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  435.877506]  <IRQ>
[  435.880080] 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
[  435.907867]  dump_stack+0x244/0x39d
[  435.909984] lowmem_reserve[]: 0 2818 6321 6321
[  435.936101]  ? dump_stack_print_info.cold.1+0x20/0x20
[  435.939702] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  435.944290]  warn_alloc.cold.116+0xb7/0x1bd
[  435.949446] lowmem_reserve[]: 0 0 3503 3503
[  435.976799]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  435.981095] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  435.985412]  ? lock_downgrade+0x900/0x900
[  435.990226] lowmem_reserve[]: 0 0 0 0
[  436.019112]  ? trace_hardirqs_off+0xb8/0x310
[  436.023227] 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
[  436.027036]  ? trace_hardirqs_off+0xb8/0x310
[  436.031448] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  436.044975]  __alloc_pages_slowpath+0x2651/0x2de0
[  436.049357] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  436.064107]  ? warn_alloc+0x120/0x120
[  436.068909] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  436.083653]  ? print_usage_bug+0xc0/0xc0
[  436.087438] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  436.096262]  ? warn_alloc+0x120/0x120
[  436.100300] 1360 total pagecache pages
[  436.108952]  ? warn_alloc+0x120/0x120
[  436.112737] 0 pages in swap cache
[  436.116622]  ? print_usage_bug+0xc0/0xc0
[  436.120401] Swap cache stats: add 0, delete 0, find 0/0
[  436.123842]  ? print_usage_bug+0xc0/0xc0
[  436.127880] Free swap  = 0kB
[  436.133261]  ? __lock_acquire+0x62f/0x4c20
[  436.137299] Total swap = 0kB
[  436.140319]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.144526] 1965979 pages RAM
[  436.147542]  ? should_fail+0x22d/0xd01
[  436.153049] 0 pages HighMem/MovableOnly
[  436.153058] 342854 pages reserved
[  436.156179]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.160039] 0 pages cma reserved
[  436.164027]  ? __lock_acquire+0x62f/0x4c20
[  436.167664] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  436.172565]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  436.175932] syz-fuzzer cpuset=/ mems_allowed=0
[  436.180194]  ? __lock_acquire+0x62f/0x4c20
[  436.204302]  ? should_fail+0x22d/0xd01
[  436.208197]  ? find_held_lock+0x36/0x1c0
[  436.212273]  ? mark_held_locks+0x130/0x130
[  436.216518]  ? mark_held_locks+0x130/0x130
[  436.220772]  ? zap_class+0x640/0x640
[  436.224489]  ? zap_class+0x640/0x640
[  436.228211]  ? print_usage_bug+0xc0/0xc0
[  436.232274]  ? do_raw_spin_unlock+0xa7/0x330
[  436.236683]  ? zap_class+0x640/0x640
[  436.240397]  ? print_usage_bug+0xc0/0xc0
[  436.244464]  ? wq_watchdog_touch+0x9c/0xfe
[  436.248705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.254246]  ? check_preemption_disabled+0x48/0x280
[  436.259274]  ? __lock_is_held+0xb5/0x140
[  436.263349]  __alloc_pages_nodemask+0xad8/0xea0
[  436.268021]  ? zap_class+0x640/0x640
[  436.271747]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  436.276797]  ? find_held_lock+0x36/0x1c0
[  436.280895]  ? ____cache_alloc_node+0x1c7/0x1e0
[  436.285564]  ? lock_downgrade+0x900/0x900
[  436.289724]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.295266]  cache_grow_begin+0xa5/0x8c0
[  436.299330]  ? do_raw_spin_unlock+0xa7/0x330
[  436.303753]  fallback_alloc+0x204/0x2e0
[  436.307736]  ____cache_alloc_node+0x1c7/0x1e0
[  436.312284]  kmem_cache_alloc_node+0xe3/0x730
[  436.316778]  ? ipv6_get_ifaddr+0x42e/0x620
[  436.321054]  __alloc_skb+0x119/0x770
[  436.324772]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.330054]  ? netdev_alloc_frag+0x1f0/0x1f0
[  436.334460]  ? lock_downgrade+0x900/0x900
[  436.338617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.344159]  ? refcount_sub_and_test_checked+0x203/0x310
[  436.349630]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  436.355081]  ? addrconf_rs_timer+0x690/0x690
[  436.359506]  ndisc_alloc_skb+0x144/0x340
[  436.363602]  ndisc_send_rs+0x331/0x6e0
[  436.367511]  addrconf_rs_timer+0x314/0x690
[  436.371840]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.376098]  call_timer_fn+0x272/0x920
[  436.379999]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.384234]  ? process_timeout+0x40/0x40
[  436.388302]  ? __run_timers+0x7da/0xc70
[  436.392277]  ? _raw_spin_unlock_irq+0x27/0x80
[  436.396787]  ? _raw_spin_unlock_irq+0x27/0x80
[  436.401292]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.405523]  ? lockdep_hardirqs_on+0x296/0x5b0
[  436.410103]  ? trace_hardirqs_on+0xbd/0x310
[  436.414421]  ? kasan_check_read+0x11/0x20
[  436.418576]  ? __run_timers+0x7da/0xc70
[  436.422558]  ? trace_hardirqs_off_caller+0x310/0x310
[  436.427659]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.431890]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  436.436119]  __run_timers+0x7e5/0xc70
[  436.439961]  ? timer_fixup_init+0x70/0x70
[  436.444105]  ? kasan_check_read+0x11/0x20
[  436.448260]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.453533]  ? rcu_softirq_qs+0x20/0x20
[  436.457516]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.463050]  ? check_preemption_disabled+0x48/0x280
[  436.468064]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  436.472813]  ? retint_kernel+0x2d/0x2d
[  436.476693]  ? trace_hardirqs_on_caller+0xc0/0x310
[  436.481649]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  436.486407]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  436.491856]  ? zap_class+0x640/0x640
[  436.495569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.501105]  ? check_preemption_disabled+0x48/0x280
[  436.506189]  ? __lock_is_held+0xb5/0x140
[  436.510264]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.515809]  ? check_preemption_disabled+0x48/0x280
[  436.520826]  run_timer_softirq+0x52/0xb0
[  436.524884]  ? rcu_read_lock_sched_held+0x14f/0x180
[  436.529909]  __do_softirq+0x308/0xb7e
[  436.533722]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  436.538241]  ? lock_downgrade+0x900/0x900
[  436.542414]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  436.547553]  ? pvclock_read_flags+0x160/0x160
[  436.552059]  ? lapic_next_event+0x5a/0x90
[  436.556205]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.561754]  ? kvm_clock_read+0x18/0x30
[  436.565721]  ? kvm_sched_clock_read+0x9/0x20
[  436.570124]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.575660]  ? check_preemption_disabled+0x48/0x280
[  436.580712]  irq_exit+0x17f/0x1c0
[  436.584172]  smp_apic_timer_interrupt+0x1cb/0x760
[  436.589016]  ? smp_reschedule_interrupt+0x109/0x650
[  436.594033]  ? smp_call_function_single_interrupt+0x650/0x650
[  436.599915]  ? interrupt_entry+0xb5/0xc0
[  436.603983]  ? trace_hardirqs_off_caller+0xbb/0x310
[  436.609014]  ? trace_hardirqs_off_caller+0xbb/0x310
[  436.614045]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.618885]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.623897]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.628913]  ? task_prio+0x50/0x50
[  436.632457]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.637995]  ? check_preemption_disabled+0x48/0x280
[  436.643019]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.647864]  apic_timer_interrupt+0xf/0x20
[  436.652087]  </IRQ>
[  436.654322] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  436.659265] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  436.678170] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  436.685873] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  436.693135] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  436.700408] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  436.707672] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  436.714934] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  436.722235]  skb_clone+0x1bb/0x500
[  436.725791]  ? skb_split+0x11e0/0x11e0
[  436.729683]  ? preempt_notifier_register+0x200/0x200
[  436.734784]  ? __switch_to_asm+0x34/0x70
[  436.738857]  ? __switch_to_asm+0x34/0x70
[  436.742914]  ? __switch_to_asm+0x40/0x70
[  436.746970]  ? __switch_to_asm+0x34/0x70
[  436.751025]  ? __switch_to_asm+0x40/0x70
[  436.755081]  ? __switch_to_asm+0x40/0x70
[  436.759134]  ? __switch_to_asm+0x34/0x70
[  436.763196]  ? __switch_to_asm+0x34/0x70
[  436.767251]  ? __switch_to_asm+0x40/0x70
[  436.771320]  ? __switch_to_asm+0x34/0x70
[  436.775380]  bpf_clone_redirect+0xb9/0x490
[  436.779616]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  436.784657]  ? __sched_text_start+0x8/0x8
[  436.788820]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  436.793620]  ? find_held_lock+0x36/0x1c0
[  436.797689]  ? lock_acquire+0x1ed/0x520
[  436.801662]  ? bpf_test_run+0x3ee/0x7a0
[  436.805637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  436.811178]  ? check_preemption_disabled+0x48/0x280
[  436.816205]  ? kasan_check_read+0x11/0x20
[  436.820349]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  436.825640]  ? rcu_softirq_qs+0x20/0x20
[  436.829627]  ? preempt_schedule+0x4d/0x60
[  436.833795]  ? ___preempt_schedule+0x16/0x18
[  436.838226]  ? bpf_test_run+0x271/0x7a0
[  436.842229]  ? netlink_diag_dump+0x2a0/0x2a0
[  436.846637]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  436.852175]  ? bpf_test_init.isra.10+0x70/0x100
[  436.856848]  ? bpf_prog_test_run_skb+0x762/0xd60
[  436.861612]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  436.866470]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  436.872018]  ? fput+0x130/0x1a0
[  436.875315]  ? __bpf_prog_get+0x9b/0x290
[  436.879382]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  436.884224]  ? bpf_prog_test_run+0x130/0x1a0
[  436.888633]  ? __x64_sys_bpf+0x3d8/0x520
[  436.892716]  ? bpf_prog_get+0x20/0x20
[  436.896537]  ? do_syscall_64+0x1b9/0x820
[  436.900597]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  436.905964]  ? syscall_return_slowpath+0x5e0/0x5e0
[  436.910906]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.915756]  ? trace_hardirqs_on_caller+0x310/0x310
[  436.920773]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  436.925793]  ? prepare_exit_to_usermode+0x291/0x3b0
[  436.930812]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  436.935679]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  436.941059] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  436.941191] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  436.948109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  436.948113] Call Trace:
[  436.948118]  <IRQ>
[  436.948130]  dump_stack+0x244/0x39d
[  436.948141]  ? dump_stack_print_info.cold.1+0x20/0x20
[  436.948167]  warn_alloc.cold.116+0xb7/0x1bd
[  436.948187]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  436.954830] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  436.964013]  ? lock_downgrade+0x900/0x900
[  436.964035]  ? trace_hardirqs_off+0xb8/0x310
[  436.966950] syz-executor4 cpuset=syz4 mems_allowed=0
[  436.969105]  ? trace_hardirqs_off+0xb8/0x310
[  437.015673]  __alloc_pages_slowpath+0x2651/0x2de0
[  437.020547]  ? warn_alloc+0x120/0x120
[  437.024361]  ? warn_alloc+0x120/0x120
[  437.028171]  ? warn_alloc+0x120/0x120
[  437.031974]  ? print_usage_bug+0xc0/0xc0
[  437.036052]  ? mark_held_locks+0x130/0x130
[  437.040295]  ? kvm_clock_read+0x18/0x30
[  437.044283]  ? print_usage_bug+0xc0/0xc0
[  437.048356]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.053895]  ? should_fail+0x22d/0xd01
[  437.057789]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.062890]  ? __lock_acquire+0x62f/0x4c20
[  437.067133]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.072267]  ? __lock_acquire+0x62f/0x4c20
[  437.076513]  ? should_fail+0x22d/0xd01
[  437.080882]  ? mark_held_locks+0x130/0x130
[  437.085122]  ? mark_held_locks+0x130/0x130
[  437.089378]  ? zap_class+0x640/0x640
[  437.093097]  ? print_usage_bug+0xc0/0xc0
[  437.097163]  ? find_held_lock+0x36/0x1c0
[  437.101231]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.106773]  ? check_preemption_disabled+0x48/0x280
[  437.111820]  ? __lock_is_held+0xb5/0x140
[  437.115892]  __alloc_pages_nodemask+0xad8/0xea0
[  437.120567]  ? zap_class+0x640/0x640
[  437.124285]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  437.129312]  ? find_held_lock+0x36/0x1c0
[  437.133388]  ? ____cache_alloc_node+0x1c7/0x1e0
[  437.138060]  ? lock_downgrade+0x900/0x900
[  437.142216]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.147768]  cache_grow_begin+0xa5/0x8c0
[  437.151877]  ? do_raw_spin_unlock+0xa7/0x330
[  437.156291]  fallback_alloc+0x204/0x2e0
[  437.160291]  ____cache_alloc_node+0x1c7/0x1e0
[  437.164791]  kmem_cache_alloc_node+0xe3/0x730
[  437.169289]  ? ipv6_get_ifaddr+0x42e/0x620
[  437.173536]  __alloc_skb+0x119/0x770
[  437.177252]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.182548]  ? netdev_alloc_frag+0x1f0/0x1f0
[  437.186957]  ? lock_downgrade+0x900/0x900
[  437.191113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.196652]  ? refcount_sub_and_test_checked+0x203/0x310
[  437.202109]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  437.207559]  ? addrconf_rs_timer+0x690/0x690
[  437.211995]  ndisc_alloc_skb+0x144/0x340
[  437.216061]  ndisc_send_rs+0x331/0x6e0
[  437.219959]  addrconf_rs_timer+0x314/0x690
[  437.224198]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.228459]  call_timer_fn+0x272/0x920
[  437.232346]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.236579]  ? process_timeout+0x40/0x40
[  437.240654]  ? mark_held_locks+0xc7/0x130
[  437.244839]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.249333]  ? _raw_spin_unlock_irq+0x27/0x80
[  437.253833]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.258087]  ? lockdep_hardirqs_on+0x296/0x5b0
[  437.262671]  ? trace_hardirqs_on+0xbd/0x310
[  437.266993]  ? kasan_check_read+0x11/0x20
[  437.271134]  ? __run_timers+0x7da/0xc70
[  437.275135]  ? trace_hardirqs_off_caller+0x310/0x310
[  437.280291]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  437.284543]  __run_timers+0x7e5/0xc70
[  437.288357]  ? timer_fixup_init+0x70/0x70
[  437.292507]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  437.297525]  ? zap_class+0x640/0x640
[  437.301245]  ? print_usage_bug+0xc0/0xc0
[  437.305313]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  437.310511]  ? find_held_lock+0x36/0x1c0
[  437.314577]  ? zap_class+0x640/0x640
[  437.318300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.323839]  ? check_preemption_disabled+0x48/0x280
[  437.328871]  ? __lock_is_held+0xb5/0x140
[  437.332939]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.338476]  ? check_preemption_disabled+0x48/0x280
[  437.343499]  run_timer_softirq+0x52/0xb0
[  437.347561]  ? rcu_read_lock_sched_held+0x14f/0x180
[  437.352595]  __do_softirq+0x308/0xb7e
[  437.356399]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  437.360896]  ? lock_downgrade+0x900/0x900
[  437.365053]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  437.370197]  ? pvclock_read_flags+0x160/0x160
[  437.374695]  ? lapic_next_event+0x5a/0x90
[  437.378847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.384389]  ? kvm_clock_read+0x18/0x30
[  437.388365]  ? kvm_sched_clock_read+0x9/0x20
[  437.392777]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.398340]  ? check_preemption_disabled+0x48/0x280
[  437.403379]  irq_exit+0x17f/0x1c0
[  437.406833]  smp_apic_timer_interrupt+0x1cb/0x760
[  437.411675]  ? smp_reschedule_interrupt+0x109/0x650
[  437.416693]  ? smp_call_function_single_interrupt+0x650/0x650
[  437.422582]  ? interrupt_entry+0xb5/0xc0
[  437.426646]  ? trace_hardirqs_off_caller+0xbb/0x310
[  437.431662]  ? trace_hardirqs_off_caller+0xbb/0x310
[  437.436712]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.441585]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.446600]  ? trace_hardirqs_on_caller+0x310/0x310
[  437.451617]  ? task_prio+0x50/0x50
[  437.455169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.460740]  ? check_preemption_disabled+0x48/0x280
[  437.465764]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  437.470631]  apic_timer_interrupt+0xf/0x20
[  437.474890]  </IRQ>
[  437.477126] RIP: 0010:lock_acquire+0x268/0x520
[  437.481716] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  437.500634] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  437.508343] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  437.515617] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  437.522898] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  437.530177] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  437.537442] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  437.544735]  ? lruvec_lru_size+0x450/0x450
[  437.548971]  ? kasan_check_read+0x11/0x20
[  437.553136]  ? lock_release+0xa00/0xa00
[  437.557124]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  437.562072]  down_read_trylock+0xda/0x140
[  437.566216]  ? shrink_slab+0x207/0x8c0
[  437.570106]  ? downgrade_write+0x270/0x270
[  437.574350]  shrink_slab+0x207/0x8c0
[  437.578062]  ? shrink_active_list+0x1f00/0x1f00
[  437.582754]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  437.588380]  ? __lock_acquire+0x62f/0x4c20
[  437.592618]  ? percpu_ref_get_many+0x240/0x240
[  437.597238]  ? print_usage_bug+0xc0/0xc0
[  437.601325]  shrink_node+0x431/0x16b0
[  437.605145]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  437.610457]  ? shrink_node_memcg+0x18f0/0x18f0
[  437.615044]  ? kvm_clock_read+0x18/0x30
[  437.619021]  ? ktime_get+0x2c1/0x400
[  437.622751]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  437.627248]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  437.632788]  ? __cpuset_node_allowed+0x19b/0x660
[  437.637575]  ? mark_held_locks+0x130/0x130
[  437.641817]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  437.647528]  ? zap_class+0x640/0x640
[  437.651250]  do_try_to_free_pages+0x3e7/0x1290
[  437.655844]  ? zap_class+0x640/0x640
[  437.659574]  ? shrink_node+0x16b0/0x16b0
[  437.663637]  ? __lock_is_held+0xb5/0x140
[  437.667712]  try_to_free_pages+0x4d0/0xb90
[  437.671956]  ? do_try_to_free_pages+0x1290/0x1290
[  437.676816]  ? lock_acquire+0x1ed/0x520
[  437.680790]  ? set_page_refcounted+0x280/0x280
[  437.685380]  ? lock_release+0xa00/0xa00
[  437.689355]  ? _raw_spin_unlock_irq+0x60/0x80
[  437.693870]  ? psi_memstall_enter+0x240/0x2b0
[  437.698376]  ? psi_memstall_tick+0x230/0x230
[  437.702799]  __alloc_pages_slowpath+0xa48/0x2de0
[  437.707586]  ? warn_alloc+0x120/0x120
[  437.711386]  ? mark_held_locks+0x130/0x130
[  437.715626]  ? find_get_entry+0xaae/0x1120
[  437.719868]  ? filemap_map_pages+0x1a20/0x1a20
[  437.724468]  ? zap_class+0x640/0x640
[  437.728201]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.733743]  ? check_preemption_disabled+0x48/0x280
[  437.738761]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.744299]  ? should_fail+0x22d/0xd01
[  437.748192]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  437.753297]  ? zap_class+0x640/0x640
[  437.757052]  ? __lock_is_held+0xb5/0x140
[  437.761141]  ? mark_held_locks+0x130/0x130
[  437.765388]  ? lock_release+0xa00/0xa00
[  437.769368]  ? perf_trace_sched_process_exec+0x860/0x860
[  437.774833]  ? xa_load+0x2ba/0x460
[  437.778375]  ? lock_downgrade+0x900/0x900
[  437.782529]  ? __might_sleep+0x95/0x190
[  437.786508]  __alloc_pages_nodemask+0xad8/0xea0
[  437.791192]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  437.796215]  ? __page_cache_alloc+0x191/0x5c0
[  437.800717]  ? xa_load+0x2e1/0x460
[  437.804259]  ? xa_clear_mark+0x40/0x40
[  437.808151]  ? zap_class+0x640/0x640
[  437.811901]  ? zap_class+0x640/0x640
[  437.815633]  ? zap_class+0x640/0x640
[  437.819349]  ? __do_page_cache_readahead+0x663/0x810
[  437.824459]  ? find_held_lock+0x36/0x1c0
[  437.828529]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  437.834089]  alloc_pages_current+0x173/0x350
[  437.838502]  __page_cache_alloc+0x38c/0x5c0
[  437.842821]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  437.847754]  ? kasan_check_read+0x11/0x20
[  437.851912]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.857225]  ? generic_perform_write+0x6a0/0x6a0
[  437.861981]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  437.867518]  ? check_preemption_disabled+0x48/0x280
[  437.872538]  filemap_fault+0x1595/0x25f0
[  437.876614]  ? __lock_page_or_retry+0xa00/0xa00
[  437.881300]  ? mark_held_locks+0x130/0x130
[  437.885559]  ? filemap_map_pages+0xd6b/0x1a20
[  437.890052]  ? lock_downgrade+0x900/0x900
[  437.894208]  ? check_preemption_disabled+0x48/0x280
[  437.899227]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  437.904178]  ? kasan_check_read+0x11/0x20
[  437.908326]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  437.913602]  ? rcu_softirq_qs+0x20/0x20
[  437.917606]  ? filemap_map_pages+0xd92/0x1a20
[  437.922114]  ? find_get_entries_tag+0x1400/0x1400
[  437.926977]  ? debug_object_destroy+0x2b0/0x2b0
[  437.931649]  ? lock_pi_update_atomic+0x150/0x150
[  437.936410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  437.941970]  ? lock_acquire+0x1ed/0x520
[  437.945958]  ? ext4_filemap_fault+0x7a/0xad
[  437.950302]  ? lock_release+0xa00/0xa00
[  437.954285]  ? perf_trace_sched_process_exec+0x860/0x860
[  437.959738]  ? print_usage_bug+0xc0/0xc0
[  437.963801]  ? print_usage_bug+0xc0/0xc0
[  437.967876]  ? down_read+0x8d/0x120
[  437.971505]  ? ext4_filemap_fault+0x7a/0xad
[  437.975843]  ? __down_interruptible+0x700/0x700
[  437.980532]  ext4_filemap_fault+0x82/0xad
[  437.984683]  __do_fault+0x100/0x6b0
[  437.988311]  ? find_held_lock+0x36/0x1c0
[  437.992376]  ? pmd_devmap_trans_unstable+0x220/0x220
[  437.997495]  ? mark_held_locks+0x130/0x130
[  438.001732]  ? mark_held_locks+0x130/0x130
[  438.005981]  ? kasan_check_read+0x11/0x20
[  438.010131]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.015684]  __handle_mm_fault+0x3ea0/0x5be0
[  438.020093]  ? perf_trace_lock+0x7a0/0x7a0
[  438.024339]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  438.029193]  ? __switch_to_asm+0x34/0x70
[  438.033271]  ? __switch_to_asm+0x34/0x70
[  438.037344]  ? zap_class+0x640/0x640
[  438.041055]  ? zap_class+0x640/0x640
[  438.044771]  ? __x64_sys_futex+0x53e/0x6a0
[  438.049056]  ? find_held_lock+0x36/0x1c0
[  438.053124]  ? handle_mm_fault+0x42a/0xc70
[  438.057365]  ? lock_downgrade+0x900/0x900
[  438.061514]  ? check_preemption_disabled+0x48/0x280
[  438.066537]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  438.071467]  ? kasan_check_read+0x11/0x20
[  438.075632]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.080908]  ? rcu_softirq_qs+0x20/0x20
[  438.084889]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.090002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.095561]  ? sync_mm_rss+0x9a/0x1c0
[  438.099368]  handle_mm_fault+0x54f/0xc70
[  438.103444]  ? __handle_mm_fault+0x5be0/0x5be0
[  438.108032]  ? find_vma+0x34/0x190
[  438.111604]  __do_page_fault+0x5e8/0xe60
[  438.115665]  ? trace_hardirqs_off+0xb8/0x310
[  438.120083]  do_page_fault+0xf2/0x7e0
[  438.123880]  ? vmalloc_sync_all+0x30/0x30
[  438.128031]  ? error_entry+0x70/0xd0
[  438.131743]  ? trace_hardirqs_off_caller+0xbb/0x310
[  438.136787]  ? trace_hardirqs_on_caller+0xc0/0x310
[  438.141738]  ? syscall_return_slowpath+0x5e0/0x5e0
[  438.146666]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.151531]  ? trace_hardirqs_on_caller+0x310/0x310
[  438.156593]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  438.162050]  ? prepare_exit_to_usermode+0x291/0x3b0
[  438.167074]  ? page_fault+0x8/0x30
[  438.170616]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  438.175462]  ? page_fault+0x8/0x30
[  438.179003]  page_fault+0x1e/0x30
[  438.182451] RIP: 0033:0x45ddf3
[  438.185657] Code: Bad RIP value.
[  438.189044] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  438.194402] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  438.201689] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  438.208959] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  438.216242] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  438.223511] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  438.230800] warn_alloc_show_mem: 1 callbacks suppressed
[  438.230813] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  438.230815] Mem-Info:
[  438.230845] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  438.230845]  active_file:17 inactive_file:17 isolated_file:0
[  438.230845]  unevictable:0 dirty:4 writeback:0 unstable:0
[  438.230845]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  438.230845]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  438.230845]  free:13550 free_pcp:124 free_cma:0
[  438.236202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  438.243493] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  438.245887] Call Trace:
[  438.278930] 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
[  438.288264]  <IRQ>
[  438.316002] lowmem_reserve[]: 0 2818 6321 6321
[  438.318588]  dump_stack+0x244/0x39d
[  438.344668] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  438.346815]  ? dump_stack_print_info.cold.1+0x20/0x20
[  438.351368] lowmem_reserve[]: 0 0 3503 3503
[  438.354993]  warn_alloc.cold.116+0xb7/0x1bd
[  438.382283] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  438.387466]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  438.391760] lowmem_reserve[]: 0 0 0 0
[  438.396079]  ? lock_downgrade+0x900/0x900
[  438.424938] 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
[  438.429792]  ? trace_hardirqs_off+0xb8/0x310
[  438.433590] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  438.437730]  ? trace_hardirqs_off+0xb8/0x310
[  438.451225] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  438.455621]  __alloc_pages_slowpath+0x2651/0x2de0
[  438.470333] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  438.474742]  ? warn_alloc+0x120/0x120
[  438.489453] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  438.494284]  ? warn_alloc+0x120/0x120
[  438.503093] 1360 total pagecache pages
[  438.506898]  ? warn_alloc+0x120/0x120
[  438.515464] 0 pages in swap cache
[  438.519248]  ? print_usage_bug+0xc0/0xc0
[  438.523124] Swap cache stats: add 0, delete 0, find 0/0
[  438.526930]  ? print_usage_bug+0xc0/0xc0
[  438.530362] Free swap  = 0kB
[  438.534416]  ? hrtimer_start_range_ns+0xe00/0xe00
[  438.539751] Total swap = 0kB
[  438.543816]  ? print_usage_bug+0xc0/0xc0
[  438.546821] 1965979 pages RAM
[  438.551673]  ? print_usage_bug+0xc0/0xc0
[  438.554680] 0 pages HighMem/MovableOnly
[  438.558734]  ? print_usage_bug+0xc0/0xc0
[  438.561827] 342854 pages reserved
[  438.565880]  ? kvm_clock_read+0x18/0x30
[  438.569828] 0 pages cma reserved
[  438.573899]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  438.577397] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  438.581290]  ? should_fail+0x22d/0xd01
[  438.581303]  ? print_usage_bug+0xc0/0xc0
[  438.581321]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  438.584729] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  438.590196]  ? __lock_acquire+0x62f/0x4c20
[  438.596662] syz-fuzzer cpuset=/ mems_allowed=0
[  438.600568]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  438.633760]  ? should_fail+0x22d/0xd01
[  438.637657]  ? zap_class+0x640/0x640
[  438.641395]  ? mark_held_locks+0x130/0x130
[  438.645650]  ? mark_held_locks+0x130/0x130
[  438.649894]  ? zap_class+0x640/0x640
[  438.653609]  ? mark_held_locks+0x130/0x130
[  438.657842]  ? try_to_wake_up+0x11c/0x1490
[  438.662077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.667614]  ? check_preemption_disabled+0x48/0x280
[  438.672668]  ? __lock_is_held+0xb5/0x140
[  438.676735]  __alloc_pages_nodemask+0xad8/0xea0
[  438.681409]  ? zap_class+0x640/0x640
[  438.685147]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  438.690190]  ? find_held_lock+0x36/0x1c0
[  438.694265]  ? ____cache_alloc_node+0x1c7/0x1e0
[  438.698936]  ? lock_downgrade+0x900/0x900
[  438.703108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.708654]  cache_grow_begin+0xa5/0x8c0
[  438.712717]  ? do_raw_spin_unlock+0xa7/0x330
[  438.717131]  fallback_alloc+0x204/0x2e0
[  438.721121]  ____cache_alloc_node+0x1c7/0x1e0
[  438.725643]  kmem_cache_alloc_node+0xe3/0x730
[  438.730142]  ? lockdep_hardirqs_on+0x296/0x5b0
[  438.734742]  __alloc_skb+0x119/0x770
[  438.738462]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  438.743838]  ? netdev_alloc_frag+0x1f0/0x1f0
[  438.748263]  ? lock_acquire+0x1ed/0x520
[  438.752255]  ? aoecmd_cfg+0x108/0x7f0
[  438.756060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.761613]  ? check_preemption_disabled+0x48/0x280
[  438.766646]  ? kasan_check_read+0x11/0x20
[  438.770807]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.776080]  ? rcu_softirq_qs+0x20/0x20
[  438.780061]  new_skb+0x26/0x1c0
[  438.783342]  aoecmd_cfg+0x279/0x7f0
[  438.786975]  ? find_held_lock+0x36/0x1c0
[  438.791040]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  438.795365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.800904]  ? check_preemption_disabled+0x48/0x280
[  438.805934]  ? __lock_is_held+0xb5/0x140
[  438.810022]  discover_timer+0x50/0x60
[  438.813847]  call_timer_fn+0x272/0x920
[  438.817738]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  438.822585]  ? process_timeout+0x40/0x40
[  438.826652]  ? __run_timers+0x7da/0xc70
[  438.830628]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.835131]  ? _raw_spin_unlock_irq+0x27/0x80
[  438.839640]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  438.844486]  ? lockdep_hardirqs_on+0x296/0x5b0
[  438.849071]  ? trace_hardirqs_on+0xbd/0x310
[  438.853393]  ? kasan_check_read+0x11/0x20
[  438.857546]  ? __run_timers+0x7da/0xc70
[  438.861524]  ? trace_hardirqs_off_caller+0x310/0x310
[  438.866643]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  438.871491]  __run_timers+0x7e5/0xc70
[  438.875318]  ? timer_fixup_init+0x70/0x70
[  438.879468]  ? kasan_check_read+0x11/0x20
[  438.883615]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  438.888919]  ? rcu_softirq_qs+0x20/0x20
[  438.892915]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.898462]  ? check_preemption_disabled+0x48/0x280
[  438.903486]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  438.908251]  ? retint_kernel+0x2d/0x2d
[  438.912141]  ? trace_hardirqs_on_caller+0xc0/0x310
[  438.917094]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  438.921853]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  438.927329]  ? zap_class+0x640/0x640
[  438.931050]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.936606]  ? check_preemption_disabled+0x48/0x280
[  438.941632]  ? __lock_is_held+0xb5/0x140
[  438.945697]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.951446]  ? check_preemption_disabled+0x48/0x280
[  438.956470]  run_timer_softirq+0x52/0xb0
[  438.960535]  ? rcu_read_lock_sched_held+0x14f/0x180
[  438.965553]  __do_softirq+0x308/0xb7e
[  438.969377]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  438.973878]  ? lock_downgrade+0x900/0x900
[  438.978062]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  438.983183]  ? pvclock_read_flags+0x160/0x160
[  438.987688]  ? lapic_next_event+0x5a/0x90
[  438.991842]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  438.997384]  ? kvm_clock_read+0x18/0x30
[  439.001357]  ? kvm_sched_clock_read+0x9/0x20
[  439.005785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.011330]  ? check_preemption_disabled+0x48/0x280
[  439.016359]  irq_exit+0x17f/0x1c0
[  439.019821]  smp_apic_timer_interrupt+0x1cb/0x760
[  439.024669]  ? smp_reschedule_interrupt+0x109/0x650
[  439.029687]  ? smp_call_function_single_interrupt+0x650/0x650
[  439.035572]  ? interrupt_entry+0xb5/0xc0
[  439.039636]  ? trace_hardirqs_off_caller+0xbb/0x310
[  439.044654]  ? trace_hardirqs_off_caller+0xbb/0x310
[  439.049675]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.054519]  ? trace_hardirqs_on_caller+0x310/0x310
[  439.059536]  ? trace_hardirqs_on_caller+0x310/0x310
[  439.064553]  ? task_prio+0x50/0x50
[  439.068096]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.073641]  ? check_preemption_disabled+0x48/0x280
[  439.078666]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.083635]  apic_timer_interrupt+0xf/0x20
[  439.087863]  </IRQ>
[  439.090103] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  439.095034] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  439.113936] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  439.121655] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  439.128920] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  439.136190] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  439.143456] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  439.150733] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  439.158045]  skb_clone+0x1bb/0x500
[  439.161587]  ? skb_split+0x11e0/0x11e0
[  439.165479]  ? preempt_notifier_register+0x200/0x200
[  439.170579]  ? __switch_to_asm+0x34/0x70
[  439.174640]  ? __switch_to_asm+0x34/0x70
[  439.178697]  ? __switch_to_asm+0x40/0x70
[  439.182758]  ? __switch_to_asm+0x34/0x70
[  439.186828]  ? __switch_to_asm+0x40/0x70
[  439.190890]  ? __switch_to_asm+0x40/0x70
[  439.194951]  ? __switch_to_asm+0x34/0x70
[  439.199009]  ? __switch_to_asm+0x34/0x70
[  439.203096]  ? __switch_to_asm+0x40/0x70
[  439.207162]  ? __switch_to_asm+0x34/0x70
[  439.211229]  bpf_clone_redirect+0xb9/0x490
[  439.215474]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  439.220499]  ? __sched_text_start+0x8/0x8
[  439.224648]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  439.229418]  ? find_held_lock+0x36/0x1c0
[  439.233495]  ? lock_acquire+0x1ed/0x520
[  439.237487]  ? bpf_test_run+0x3ee/0x7a0
[  439.241466]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.247024]  ? check_preemption_disabled+0x48/0x280
[  439.252048]  ? kasan_check_read+0x11/0x20
[  439.256225]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.261502]  ? rcu_softirq_qs+0x20/0x20
[  439.265508]  ? preempt_schedule+0x4d/0x60
[  439.269671]  ? ___preempt_schedule+0x16/0x18
[  439.274089]  ? bpf_test_run+0x271/0x7a0
[  439.278075]  ? netlink_diag_dump+0x2a0/0x2a0
[  439.282490]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.288027]  ? bpf_test_init.isra.10+0x70/0x100
[  439.292735]  ? bpf_prog_test_run_skb+0x762/0xd60
[  439.297505]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  439.302355]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  439.307896]  ? fput+0x130/0x1a0
[  439.311218]  ? __bpf_prog_get+0x9b/0x290
[  439.315284]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  439.320141]  ? bpf_prog_test_run+0x130/0x1a0
[  439.324562]  ? __x64_sys_bpf+0x3d8/0x520
[  439.328624]  ? bpf_prog_get+0x20/0x20
[  439.332446]  ? do_syscall_64+0x1b9/0x820
[  439.336509]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  439.341879]  ? syscall_return_slowpath+0x5e0/0x5e0
[  439.346821]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.351667]  ? trace_hardirqs_on_caller+0x310/0x310
[  439.356686]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  439.361709]  ? prepare_exit_to_usermode+0x291/0x3b0
[  439.366731]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.371578]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  439.376969] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  439.377052] aoe: skb alloc failure
[  439.383902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  439.383907] Call Trace:
[  439.383913]  <IRQ>
[  439.383934]  dump_stack+0x244/0x39d
[  439.383952]  ? dump_stack_print_info.cold.1+0x20/0x20
[  439.387500] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  439.396822]  warn_alloc.cold.116+0xb7/0x1bd
[  439.399374] syz-executor4 cpuset=syz4 mems_allowed=0
[  439.401544]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  439.435077]  ? lock_downgrade+0x900/0x900
[  439.439234]  ? trace_hardirqs_off+0xb8/0x310
[  439.443660]  ? trace_hardirqs_off+0xb8/0x310
[  439.448078]  __alloc_pages_slowpath+0x2651/0x2de0
[  439.452954]  ? warn_alloc+0x120/0x120
[  439.456760]  ? print_usage_bug+0xc0/0xc0
[  439.460824]  ? warn_alloc+0x120/0x120
[  439.464629]  ? warn_alloc+0x120/0x120
[  439.468432]  ? print_usage_bug+0xc0/0xc0
[  439.472498]  ? print_usage_bug+0xc0/0xc0
[  439.476564]  ? __lock_acquire+0x62f/0x4c20
[  439.480842]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.486399]  ? should_fail+0x22d/0xd01
[  439.490319]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.495437]  ? __lock_acquire+0x62f/0x4c20
[  439.499675]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  439.504776]  ? __lock_acquire+0x62f/0x4c20
[  439.509025]  ? should_fail+0x22d/0xd01
[  439.512909]  ? find_held_lock+0x36/0x1c0
[  439.516985]  ? mark_held_locks+0x130/0x130
[  439.521239]  ? mark_held_locks+0x130/0x130
[  439.525479]  ? zap_class+0x640/0x640
[  439.529197]  ? zap_class+0x640/0x640
[  439.532913]  ? print_usage_bug+0xc0/0xc0
[  439.536997]  ? do_raw_spin_unlock+0xa7/0x330
[  439.541404]  ? zap_class+0x640/0x640
[  439.545174]  ? print_usage_bug+0xc0/0xc0
[  439.549237]  ? wq_watchdog_touch+0x9c/0xfe
[  439.553506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.559048]  ? check_preemption_disabled+0x48/0x280
[  439.564091]  ? __lock_is_held+0xb5/0x140
[  439.568165]  __alloc_pages_nodemask+0xad8/0xea0
[  439.572850]  ? zap_class+0x640/0x640
[  439.576582]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  439.581609]  ? find_held_lock+0x36/0x1c0
[  439.585681]  ? ____cache_alloc_node+0x1c7/0x1e0
[  439.590353]  ? lock_downgrade+0x900/0x900
[  439.594521]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.600063]  cache_grow_begin+0xa5/0x8c0
[  439.604118]  ? do_raw_spin_unlock+0xa7/0x330
[  439.608536]  fallback_alloc+0x204/0x2e0
[  439.612515]  ____cache_alloc_node+0x1c7/0x1e0
[  439.617012]  kmem_cache_alloc_node+0xe3/0x730
[  439.621509]  ? ipv6_get_ifaddr+0x42e/0x620
[  439.625764]  __alloc_skb+0x119/0x770
[  439.629473]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  439.634753]  ? netdev_alloc_frag+0x1f0/0x1f0
[  439.639225]  ? lock_downgrade+0x900/0x900
[  439.643379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.648918]  ? refcount_sub_and_test_checked+0x203/0x310
[  439.654386]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  439.659882]  ? addrconf_rs_timer+0x690/0x690
[  439.664327]  ndisc_alloc_skb+0x144/0x340
[  439.668406]  ndisc_send_rs+0x331/0x6e0
[  439.672311]  addrconf_rs_timer+0x314/0x690
[  439.676550]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.680797]  call_timer_fn+0x272/0x920
[  439.684684]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.688919]  ? process_timeout+0x40/0x40
[  439.692995]  ? mark_held_locks+0xc7/0x130
[  439.697140]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.701644]  ? _raw_spin_unlock_irq+0x27/0x80
[  439.706136]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.710394]  ? lockdep_hardirqs_on+0x296/0x5b0
[  439.714976]  ? trace_hardirqs_on+0xbd/0x310
[  439.719314]  ? kasan_check_read+0x11/0x20
[  439.723463]  ? __run_timers+0x7da/0xc70
[  439.727440]  ? trace_hardirqs_off_caller+0x310/0x310
[  439.732546]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.736783]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  439.741018]  __run_timers+0x7e5/0xc70
[  439.744826]  ? timer_fixup_init+0x70/0x70
[  439.748976]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  439.753997]  ? zap_class+0x640/0x640
[  439.757721]  ? print_usage_bug+0xc0/0xc0
[  439.761787]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  439.766985]  ? find_held_lock+0x36/0x1c0
[  439.771064]  ? zap_class+0x640/0x640
[  439.774798]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.780338]  ? check_preemption_disabled+0x48/0x280
[  439.785366]  ? __lock_is_held+0xb5/0x140
[  439.789428]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.794965]  ? check_preemption_disabled+0x48/0x280
[  439.799984]  run_timer_softirq+0x52/0xb0
[  439.804062]  ? rcu_read_lock_sched_held+0x14f/0x180
[  439.809093]  __do_softirq+0x308/0xb7e
[  439.812896]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  439.817411]  ? lock_downgrade+0x900/0x900
[  439.821580]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  439.826696]  ? pvclock_read_flags+0x160/0x160
[  439.831217]  ? lapic_next_event+0x5a/0x90
[  439.835368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.840915]  ? kvm_clock_read+0x18/0x30
[  439.844892]  ? kvm_sched_clock_read+0x9/0x20
[  439.849307]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  439.854847]  ? check_preemption_disabled+0x48/0x280
[  439.859874]  irq_exit+0x17f/0x1c0
[  439.863330]  smp_apic_timer_interrupt+0x1cb/0x760
[  439.868190]  ? smp_reschedule_interrupt+0x109/0x650
[  439.873235]  ? smp_call_function_single_interrupt+0x650/0x650
[  439.879122]  ? interrupt_entry+0xb5/0xc0
[  439.883223]  ? trace_hardirqs_off_caller+0xbb/0x310
[  439.888239]  ? trace_hardirqs_off_caller+0xbb/0x310
[  439.893270]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.898128]  ? trace_hardirqs_on_caller+0x310/0x310
[  439.903199]  ? trace_hardirqs_on_caller+0x310/0x310
[  439.908214]  ? task_prio+0x50/0x50
[  439.911755]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  439.917307]  ? check_preemption_disabled+0x48/0x280
[  439.922331]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  439.927194]  apic_timer_interrupt+0xf/0x20
[  439.931423]  </IRQ>
[  439.933660] RIP: 0010:lock_acquire+0x268/0x520
[  439.938245] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  439.957143] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  439.964859] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  439.972163] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  439.979451] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  439.986717] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  439.993981] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  440.001282]  ? lruvec_lru_size+0x450/0x450
[  440.005534]  ? kasan_check_read+0x11/0x20
[  440.009702]  ? lock_release+0xa00/0xa00
[  440.013685]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  440.018627]  down_read_trylock+0xda/0x140
[  440.022776]  ? shrink_slab+0x207/0x8c0
[  440.026690]  ? downgrade_write+0x270/0x270
[  440.030955]  shrink_slab+0x207/0x8c0
[  440.034683]  ? shrink_active_list+0x1f00/0x1f00
[  440.039364]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  440.044994]  ? __lock_acquire+0x62f/0x4c20
[  440.049232]  ? percpu_ref_get_many+0x240/0x240
[  440.053846]  ? print_usage_bug+0xc0/0xc0
[  440.057937]  shrink_node+0x431/0x16b0
[  440.061743]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  440.067059]  ? shrink_node_memcg+0x18f0/0x18f0
[  440.071660]  ? kvm_clock_read+0x18/0x30
[  440.075640]  ? ktime_get+0x2c1/0x400
[  440.079363]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  440.083865]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  440.089408]  ? __cpuset_node_allowed+0x19b/0x660
[  440.094171]  ? mark_held_locks+0x130/0x130
[  440.098414]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  440.104134]  ? zap_class+0x640/0x640
[  440.107883]  do_try_to_free_pages+0x3e7/0x1290
[  440.112500]  ? zap_class+0x640/0x640
[  440.116249]  ? shrink_node+0x16b0/0x16b0
[  440.120314]  ? __lock_is_held+0xb5/0x140
[  440.124388]  try_to_free_pages+0x4d0/0xb90
[  440.128628]  ? do_try_to_free_pages+0x1290/0x1290
[  440.133496]  ? lock_acquire+0x1ed/0x520
[  440.137471]  ? set_page_refcounted+0x280/0x280
[  440.142074]  ? lock_release+0xa00/0xa00
[  440.146054]  ? _raw_spin_unlock_irq+0x60/0x80
[  440.150561]  ? psi_memstall_enter+0x240/0x2b0
[  440.155056]  ? psi_memstall_tick+0x230/0x230
[  440.159474]  __alloc_pages_slowpath+0xa48/0x2de0
[  440.164259]  ? warn_alloc+0x120/0x120
[  440.168061]  ? mark_held_locks+0x130/0x130
[  440.172305]  ? find_get_entry+0xaae/0x1120
[  440.176549]  ? filemap_map_pages+0x1a20/0x1a20
[  440.181138]  ? zap_class+0x640/0x640
[  440.184870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.190410]  ? check_preemption_disabled+0x48/0x280
[  440.195429]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.200987]  ? should_fail+0x22d/0xd01
[  440.204892]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  440.209997]  ? zap_class+0x640/0x640
[  440.213737]  ? __lock_is_held+0xb5/0x140
[  440.217805]  ? mark_held_locks+0x130/0x130
[  440.222057]  ? lock_release+0xa00/0xa00
[  440.226033]  ? perf_trace_sched_process_exec+0x860/0x860
[  440.231484]  ? xa_load+0x2ba/0x460
[  440.235046]  ? lock_downgrade+0x900/0x900
[  440.239217]  ? __might_sleep+0x95/0x190
[  440.243198]  __alloc_pages_nodemask+0xad8/0xea0
[  440.247873]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  440.252893]  ? __page_cache_alloc+0x191/0x5c0
[  440.257404]  ? xa_load+0x2e1/0x460
[  440.260950]  ? xa_clear_mark+0x40/0x40
[  440.264842]  ? zap_class+0x640/0x640
[  440.268564]  ? zap_class+0x640/0x640
[  440.272280]  ? zap_class+0x640/0x640
[  440.275991]  ? __do_page_cache_readahead+0x663/0x810
[  440.281096]  ? find_held_lock+0x36/0x1c0
[  440.285165]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  440.290707]  alloc_pages_current+0x173/0x350
[  440.295117]  __page_cache_alloc+0x38c/0x5c0
[  440.299472]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.304413]  ? kasan_check_read+0x11/0x20
[  440.308568]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.313858]  ? generic_perform_write+0x6a0/0x6a0
[  440.318614]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.324146]  ? check_preemption_disabled+0x48/0x280
[  440.329185]  filemap_fault+0x1595/0x25f0
[  440.333257]  ? __lock_page_or_retry+0xa00/0xa00
[  440.337924]  ? mark_held_locks+0x130/0x130
[  440.342177]  ? filemap_map_pages+0xd6b/0x1a20
[  440.346688]  ? lock_downgrade+0x900/0x900
[  440.350852]  ? check_preemption_disabled+0x48/0x280
[  440.355866]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.360807]  ? kasan_check_read+0x11/0x20
[  440.364971]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.370251]  ? rcu_softirq_qs+0x20/0x20
[  440.374258]  ? filemap_map_pages+0xd92/0x1a20
[  440.378766]  ? find_get_entries_tag+0x1400/0x1400
[  440.383611]  ? debug_object_destroy+0x2b0/0x2b0
[  440.388285]  ? lock_pi_update_atomic+0x150/0x150
[  440.393043]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.398596]  ? lock_acquire+0x1ed/0x520
[  440.402575]  ? ext4_filemap_fault+0x7a/0xad
[  440.406921]  ? lock_release+0xa00/0xa00
[  440.410920]  ? perf_trace_sched_process_exec+0x860/0x860
[  440.416379]  ? print_usage_bug+0xc0/0xc0
[  440.420446]  ? print_usage_bug+0xc0/0xc0
[  440.424538]  ? down_read+0x8d/0x120
[  440.428170]  ? ext4_filemap_fault+0x7a/0xad
[  440.432500]  ? __down_interruptible+0x700/0x700
[  440.437181]  ext4_filemap_fault+0x82/0xad
[  440.441343]  __do_fault+0x100/0x6b0
[  440.444985]  ? find_held_lock+0x36/0x1c0
[  440.449045]  ? pmd_devmap_trans_unstable+0x220/0x220
[  440.454146]  ? mark_held_locks+0x130/0x130
[  440.458385]  ? mark_held_locks+0x130/0x130
[  440.462620]  ? kasan_check_read+0x11/0x20
[  440.466764]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  440.472302]  __handle_mm_fault+0x3ea0/0x5be0
[  440.476705]  ? perf_trace_lock+0x7a0/0x7a0
[  440.480966]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  440.485813]  ? __switch_to_asm+0x34/0x70
[  440.489901]  ? __switch_to_asm+0x34/0x70
[  440.493976]  ? zap_class+0x640/0x640
[  440.497689]  ? zap_class+0x640/0x640
[  440.501416]  ? __x64_sys_futex+0x53e/0x6a0
[  440.505671]  ? find_held_lock+0x36/0x1c0
[  440.509747]  ? handle_mm_fault+0x42a/0xc70
[  440.513980]  ? lock_downgrade+0x900/0x900
[  440.518130]  ? check_preemption_disabled+0x48/0x280
[  440.523164]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  440.528088]  ? kasan_check_read+0x11/0x20
[  440.532240]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  440.537514]  ? rcu_softirq_qs+0x20/0x20
[  440.541490]  ? trace_hardirqs_off_caller+0x310/0x310
[  440.546614]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  440.552169]  ? sync_mm_rss+0x9a/0x1c0
[  440.555973]  handle_mm_fault+0x54f/0xc70
[  440.560038]  ? __handle_mm_fault+0x5be0/0x5be0
[  440.564621]  ? find_vma+0x34/0x190
[  440.568168]  __do_page_fault+0x5e8/0xe60
[  440.572224]  ? trace_hardirqs_off+0xb8/0x310
[  440.576771]  do_page_fault+0xf2/0x7e0
[  440.580618]  ? vmalloc_sync_all+0x30/0x30
[  440.584768]  ? error_entry+0x70/0xd0
[  440.588485]  ? trace_hardirqs_off_caller+0xbb/0x310
[  440.593496]  ? trace_hardirqs_on_caller+0xc0/0x310
[  440.598427]  ? syscall_return_slowpath+0x5e0/0x5e0
[  440.603361]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.608205]  ? trace_hardirqs_on_caller+0x310/0x310
[  440.613218]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  440.618674]  ? prepare_exit_to_usermode+0x291/0x3b0
[  440.623689]  ? page_fault+0x8/0x30
[  440.627249]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  440.632115]  ? page_fault+0x8/0x30
[  440.635653]  page_fault+0x1e/0x30
[  440.639105] RIP: 0033:0x45ddf3
[  440.642325] Code: Bad RIP value.
[  440.645684] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  440.651045] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  440.658308] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  440.665571] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  440.672835] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  440.680117] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  440.687412] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  440.687418] warn_alloc_show_mem: 1 callbacks suppressed
[  440.687425] Mem-Info:
[  440.694725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  440.700091] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  440.700091]  active_file:17 inactive_file:17 isolated_file:0
[  440.700091]  unevictable:0 dirty:4 writeback:0 unstable:0
[  440.700091]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  440.700091]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  440.700091]  free:13550 free_pcp:124 free_cma:0
[  440.702478] Call Trace:
[  440.711865] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  440.744913]  <IRQ>
[  440.747492] 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
[  440.775243]  dump_stack+0x244/0x39d
[  440.777363] lowmem_reserve[]: 0 2818 6321 6321
[  440.803497]  ? dump_stack_print_info.cold.1+0x20/0x20
[  440.807094] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  440.811691]  warn_alloc.cold.116+0xb7/0x1bd
[  440.816846] lowmem_reserve[]: 0 0 3503 3503
[  440.844173]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  440.848476] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  440.852792]  ? lock_downgrade+0x900/0x900
[  440.857607] lowmem_reserve[]: 0 0 0 0
[  440.886523]  ? trace_hardirqs_off+0xb8/0x310
[  440.890668] 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
[  440.894480]  ? trace_hardirqs_off+0xb8/0x310
[  440.898890] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  440.912460]  __alloc_pages_slowpath+0x2651/0x2de0
[  440.916862] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  440.931656]  ? warn_alloc+0x120/0x120
[  440.936438] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  440.936451] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  440.951476]  ? warn_alloc+0x120/0x120
[  440.955260] 1360 total pagecache pages
[  440.964091]  ? __lock_acquire+0x62f/0x4c20
[  440.972647] 0 pages in swap cache
[  440.976434]  ? warn_alloc+0x120/0x120
[  440.980297] Swap cache stats: add 0, delete 0, find 0/0
[  440.984518]  ? print_usage_bug+0xc0/0xc0
[  440.987947] Free swap  = 0kB
[  440.991736]  ? print_usage_bug+0xc0/0xc0
[  440.997072] Total swap = 0kB
[  441.001121]  ? mark_held_locks+0x130/0x130
[  441.004121] 1965979 pages RAM
[  441.008182]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.011177] 0 pages HighMem/MovableOnly
[  441.015407]  ? should_fail+0x22d/0xd01
[  441.018485] 342854 pages reserved
[  441.024017]  ? zap_class+0x640/0x640
[  441.027966] 0 pages cma reserved
[  441.031846]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.035362] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  441.038988]  ? __lock_acquire+0x62f/0x4c20
[  441.042425] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  441.047434]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.053895] syz-fuzzer cpuset=/ mems_allowed=0
[  441.058119]  ? should_fail+0x22d/0xd01
[  441.081901]  ? mark_held_locks+0x130/0x130
[  441.086137]  ? mark_held_locks+0x130/0x130
[  441.090374]  ? lock_downgrade+0x900/0x900
[  441.094522]  ? zap_class+0x640/0x640
[  441.098252]  ? zap_class+0x640/0x640
[  441.101983]  ? zap_class+0x640/0x640
[  441.105694]  ? do_raw_spin_unlock+0xa7/0x330
[  441.110126]  ? trace_hardirqs_on+0x310/0x310
[  441.114544]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.120084]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.125655]  ? check_preemption_disabled+0x48/0x280
[  441.130701]  ? __lock_is_held+0xb5/0x140
[  441.134768]  __alloc_pages_nodemask+0xad8/0xea0
[  441.139457]  ? zap_class+0x640/0x640
[  441.143184]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  441.148266]  ? find_held_lock+0x36/0x1c0
[  441.152337]  ? ____cache_alloc_node+0x1c7/0x1e0
[  441.157006]  ? lock_downgrade+0x900/0x900
[  441.161173]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.166727]  cache_grow_begin+0xa5/0x8c0
[  441.170791]  ? do_raw_spin_unlock+0xa7/0x330
[  441.175239]  fallback_alloc+0x204/0x2e0
[  441.179235]  ____cache_alloc_node+0x1c7/0x1e0
[  441.183750]  kmem_cache_alloc_node+0xe3/0x730
[  441.188246]  ? lockdep_hardirqs_on+0x296/0x5b0
[  441.192849]  __alloc_skb+0x119/0x770
[  441.196565]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  441.201931]  ? netdev_alloc_frag+0x1f0/0x1f0
[  441.206359]  ? vprintk_default+0x28/0x30
[  441.210423]  ? vprintk_func+0x85/0x181
[  441.214333]  ? printk+0xa7/0xcf
[  441.217613]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  441.222381]  new_skb+0x26/0x1c0
[  441.225677]  aoecmd_cfg+0x279/0x7f0
[  441.229303]  ? find_held_lock+0x36/0x1c0
[  441.233409]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  441.237756]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.243305]  ? __lock_is_held+0xb5/0x140
[  441.247380]  discover_timer+0x50/0x60
[  441.251189]  call_timer_fn+0x272/0x920
[  441.255075]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  441.259916]  ? process_timeout+0x40/0x40
[  441.263982]  ? __run_timers+0x7da/0xc70
[  441.267956]  ? _raw_spin_unlock_irq+0x27/0x80
[  441.272454]  ? _raw_spin_unlock_irq+0x27/0x80
[  441.276948]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  441.281789]  ? lockdep_hardirqs_on+0x296/0x5b0
[  441.286388]  ? trace_hardirqs_on+0xbd/0x310
[  441.290709]  ? kasan_check_read+0x11/0x20
[  441.294864]  ? __run_timers+0x7da/0xc70
[  441.298872]  ? trace_hardirqs_off_caller+0x310/0x310
[  441.303993]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  441.308875]  __run_timers+0x7e5/0xc70
[  441.312748]  ? timer_fixup_init+0x70/0x70
[  441.316908]  ? kasan_check_read+0x11/0x20
[  441.321051]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.326339]  ? rcu_softirq_qs+0x20/0x20
[  441.330314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.335853]  ? check_preemption_disabled+0x48/0x280
[  441.340902]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  441.345672]  ? retint_kernel+0x2d/0x2d
[  441.349586]  ? trace_hardirqs_on_caller+0xc0/0x310
[  441.354514]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  441.359266]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  441.364715]  ? zap_class+0x640/0x640
[  441.368435]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.373971]  ? check_preemption_disabled+0x48/0x280
[  441.378995]  ? __lock_is_held+0xb5/0x140
[  441.383056]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.388625]  ? check_preemption_disabled+0x48/0x280
[  441.393676]  run_timer_softirq+0x52/0xb0
[  441.397749]  ? rcu_read_lock_sched_held+0x14f/0x180
[  441.402802]  __do_softirq+0x308/0xb7e
[  441.406599]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  441.411085]  ? lock_downgrade+0x900/0x900
[  441.415260]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  441.420364]  ? pvclock_read_flags+0x160/0x160
[  441.424854]  ? lapic_next_event+0x5a/0x90
[  441.429027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.434562]  ? kvm_clock_read+0x18/0x30
[  441.438560]  ? kvm_sched_clock_read+0x9/0x20
[  441.442968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.448500]  ? check_preemption_disabled+0x48/0x280
[  441.453522]  irq_exit+0x17f/0x1c0
[  441.456987]  smp_apic_timer_interrupt+0x1cb/0x760
[  441.461824]  ? smp_reschedule_interrupt+0x109/0x650
[  441.466851]  ? smp_call_function_single_interrupt+0x650/0x650
[  441.472725]  ? interrupt_entry+0xb5/0xc0
[  441.476779]  ? trace_hardirqs_off_caller+0xbb/0x310
[  441.481819]  ? trace_hardirqs_off_caller+0xbb/0x310
[  441.486845]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.491719]  ? trace_hardirqs_on_caller+0x310/0x310
[  441.496774]  ? trace_hardirqs_on_caller+0x310/0x310
[  441.501802]  ? task_prio+0x50/0x50
[  441.505365]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.510899]  ? check_preemption_disabled+0x48/0x280
[  441.515966]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.520874]  apic_timer_interrupt+0xf/0x20
[  441.525100]  </IRQ>
[  441.527345] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  441.532273] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  441.551181] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  441.558899] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  441.566171] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  441.573443] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  441.580706] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  441.587971] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  441.595289]  skb_clone+0x1bb/0x500
[  441.598832]  ? skb_split+0x11e0/0x11e0
[  441.602723]  ? preempt_notifier_register+0x200/0x200
[  441.607846]  ? __switch_to_asm+0x34/0x70
[  441.611898]  ? __switch_to_asm+0x34/0x70
[  441.615971]  ? __switch_to_asm+0x40/0x70
[  441.620069]  ? __switch_to_asm+0x34/0x70
[  441.624121]  ? __switch_to_asm+0x40/0x70
[  441.628197]  ? __switch_to_asm+0x40/0x70
[  441.632293]  ? __switch_to_asm+0x34/0x70
[  441.636365]  ? __switch_to_asm+0x34/0x70
[  441.640418]  ? __switch_to_asm+0x40/0x70
[  441.644494]  ? __switch_to_asm+0x34/0x70
[  441.648558]  bpf_clone_redirect+0xb9/0x490
[  441.652799]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  441.657844]  ? __sched_text_start+0x8/0x8
[  441.661987]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  441.666761]  ? find_held_lock+0x36/0x1c0
[  441.670839]  ? lock_acquire+0x1ed/0x520
[  441.674812]  ? bpf_test_run+0x3ee/0x7a0
[  441.678782]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.684320]  ? check_preemption_disabled+0x48/0x280
[  441.689341]  ? kasan_check_read+0x11/0x20
[  441.693489]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.698761]  ? rcu_softirq_qs+0x20/0x20
[  441.702745]  ? preempt_schedule+0x4d/0x60
[  441.706887]  ? ___preempt_schedule+0x16/0x18
[  441.711300]  ? bpf_test_run+0x271/0x7a0
[  441.715286]  ? netlink_diag_dump+0x2a0/0x2a0
[  441.719698]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.725237]  ? bpf_test_init.isra.10+0x70/0x100
[  441.729926]  ? bpf_prog_test_run_skb+0x762/0xd60
[  441.734721]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  441.739576]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  441.745112]  ? fput+0x130/0x1a0
[  441.748395]  ? __bpf_prog_get+0x9b/0x290
[  441.752466]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  441.757337]  ? bpf_prog_test_run+0x130/0x1a0
[  441.761751]  ? __x64_sys_bpf+0x3d8/0x520
[  441.765847]  ? bpf_prog_get+0x20/0x20
[  441.769710]  ? do_syscall_64+0x1b9/0x820
[  441.773772]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  441.779145]  ? syscall_return_slowpath+0x5e0/0x5e0
[  441.784076]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.788916]  ? trace_hardirqs_on_caller+0x310/0x310
[  441.793956]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  441.798970]  ? prepare_exit_to_usermode+0x291/0x3b0
[  441.803990]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  441.808837]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  441.814270] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  441.814369] aoe: skb alloc failure
[  441.821238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  441.821243] Call Trace:
[  441.821249]  <IRQ>
[  441.821266]  dump_stack+0x244/0x39d
[  441.821288]  ? dump_stack_print_info.cold.1+0x20/0x20
[  441.824849] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  441.834179]  warn_alloc.cold.116+0xb7/0x1bd
[  441.836753] syz-executor4 cpuset=syz4 mems_allowed=0
[  441.838968]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  441.872440]  ? lock_downgrade+0x900/0x900
[  441.876607]  ? trace_hardirqs_off+0xb8/0x310
[  441.881019]  ? trace_hardirqs_off+0xb8/0x310
[  441.885462]  __alloc_pages_slowpath+0x2651/0x2de0
[  441.890389]  ? warn_alloc+0x120/0x120
[  441.894195]  ? print_usage_bug+0xc0/0xc0
[  441.898260]  ? warn_alloc+0x120/0x120
[  441.902063]  ? warn_alloc+0x120/0x120
[  441.905882]  ? print_usage_bug+0xc0/0xc0
[  441.909955]  ? kvm_clock_read+0x18/0x30
[  441.913946]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  441.918975]  ? print_usage_bug+0xc0/0xc0
[  441.923038]  ? __lock_acquire+0x62f/0x4c20
[  441.927281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  441.932825]  ? should_fail+0x22d/0xd01
[  441.936718]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  441.942002]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.947115]  ? __lock_acquire+0x62f/0x4c20
[  441.951359]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  441.956462]  ? __lock_acquire+0x62f/0x4c20
[  441.960701]  ? should_fail+0x22d/0xd01
[  441.964617]  ? rcu_irq_exit+0x1a2/0x390
[  441.968606]  ? mark_held_locks+0x130/0x130
[  441.972845]  ? mark_held_locks+0x130/0x130
[  441.977086]  ? mark_held_locks+0xc7/0x130
[  441.981237]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  441.986269]  ? zap_class+0x640/0x640
[  441.989986]  ? print_usage_bug+0xc0/0xc0
[  441.994054]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  441.999596]  ? check_preemption_disabled+0x48/0x280
[  442.004619]  ? __lock_is_held+0xb5/0x140
[  442.008709]  __alloc_pages_nodemask+0xad8/0xea0
[  442.013390]  ? zap_class+0x640/0x640
[  442.017108]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  442.022135]  ? find_held_lock+0x36/0x1c0
[  442.026235]  ? ____cache_alloc_node+0x1c7/0x1e0
[  442.030957]  ? lock_downgrade+0x900/0x900
[  442.035129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.040679]  cache_grow_begin+0xa5/0x8c0
[  442.044764]  ? do_raw_spin_unlock+0xa7/0x330
[  442.049188]  fallback_alloc+0x204/0x2e0
[  442.053191]  ____cache_alloc_node+0x1c7/0x1e0
[  442.057693]  kmem_cache_alloc_node+0xe3/0x730
[  442.062205]  ? ipv6_get_ifaddr+0x42e/0x620
[  442.066472]  __alloc_skb+0x119/0x770
[  442.070216]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.075505]  ? netdev_alloc_frag+0x1f0/0x1f0
[  442.079917]  ? lock_downgrade+0x900/0x900
[  442.084078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.089615]  ? refcount_sub_and_test_checked+0x203/0x310
[  442.095069]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  442.100520]  ? addrconf_rs_timer+0x690/0x690
[  442.104973]  ndisc_alloc_skb+0x144/0x340
[  442.109044]  ndisc_send_rs+0x331/0x6e0
[  442.112944]  addrconf_rs_timer+0x314/0x690
[  442.117194]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.121441]  call_timer_fn+0x272/0x920
[  442.125330]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.129567]  ? process_timeout+0x40/0x40
[  442.133645]  ? mark_held_locks+0xc7/0x130
[  442.137826]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.142343]  ? _raw_spin_unlock_irq+0x27/0x80
[  442.146880]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.151111]  ? lockdep_hardirqs_on+0x296/0x5b0
[  442.155694]  ? trace_hardirqs_on+0xbd/0x310
[  442.160016]  ? kasan_check_read+0x11/0x20
[  442.164168]  ? __run_timers+0x7da/0xc70
[  442.168143]  ? trace_hardirqs_off_caller+0x310/0x310
[  442.173260]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.177495]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  442.181725]  __run_timers+0x7e5/0xc70
[  442.185536]  ? timer_fixup_init+0x70/0x70
[  442.189687]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  442.194706]  ? zap_class+0x640/0x640
[  442.198426]  ? print_usage_bug+0xc0/0xc0
[  442.202491]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  442.207685]  ? find_held_lock+0x36/0x1c0
[  442.211748]  ? zap_class+0x640/0x640
[  442.215486]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.221043]  ? check_preemption_disabled+0x48/0x280
[  442.226067]  ? __lock_is_held+0xb5/0x140
[  442.230162]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.235712]  ? check_preemption_disabled+0x48/0x280
[  442.240729]  run_timer_softirq+0x52/0xb0
[  442.244789]  ? rcu_read_lock_sched_held+0x14f/0x180
[  442.249805]  __do_softirq+0x308/0xb7e
[  442.253611]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  442.258104]  ? lock_downgrade+0x900/0x900
[  442.262254]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  442.267371]  ? pvclock_read_flags+0x160/0x160
[  442.271867]  ? lapic_next_event+0x5a/0x90
[  442.276021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.281581]  ? kvm_clock_read+0x18/0x30
[  442.285555]  ? kvm_sched_clock_read+0x9/0x20
[  442.289968]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.295509]  ? check_preemption_disabled+0x48/0x280
[  442.300534]  irq_exit+0x17f/0x1c0
[  442.303994]  smp_apic_timer_interrupt+0x1cb/0x760
[  442.308836]  ? smp_reschedule_interrupt+0x109/0x650
[  442.313852]  ? smp_call_function_single_interrupt+0x650/0x650
[  442.319747]  ? interrupt_entry+0xb5/0xc0
[  442.323825]  ? trace_hardirqs_off_caller+0xbb/0x310
[  442.328858]  ? trace_hardirqs_off_caller+0xbb/0x310
[  442.333923]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  442.338772]  ? trace_hardirqs_on_caller+0x310/0x310
[  442.343811]  ? trace_hardirqs_on_caller+0x310/0x310
[  442.348844]  ? task_prio+0x50/0x50
[  442.352390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.357935]  ? check_preemption_disabled+0x48/0x280
[  442.362971]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  442.367843]  apic_timer_interrupt+0xf/0x20
[  442.372072]  </IRQ>
[  442.374315] RIP: 0010:lock_acquire+0x268/0x520
[  442.378907] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  442.397812] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  442.405520] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  442.412787] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  442.420055] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  442.427326] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  442.434592] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  442.441883]  ? lruvec_lru_size+0x450/0x450
[  442.446119]  ? kasan_check_read+0x11/0x20
[  442.450274]  ? lock_release+0xa00/0xa00
[  442.454253]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  442.459203]  down_read_trylock+0xda/0x140
[  442.463352]  ? shrink_slab+0x207/0x8c0
[  442.467238]  ? downgrade_write+0x270/0x270
[  442.471481]  shrink_slab+0x207/0x8c0
[  442.475193]  ? shrink_active_list+0x1f00/0x1f00
[  442.479868]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  442.485496]  ? __lock_acquire+0x62f/0x4c20
[  442.489763]  ? percpu_ref_get_many+0x240/0x240
[  442.494370]  ? print_usage_bug+0xc0/0xc0
[  442.498433]  shrink_node+0x431/0x16b0
[  442.502251]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  442.507552]  ? shrink_node_memcg+0x18f0/0x18f0
[  442.512166]  ? kvm_clock_read+0x18/0x30
[  442.516139]  ? ktime_get+0x2c1/0x400
[  442.519861]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  442.524358]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  442.529943]  ? __cpuset_node_allowed+0x19b/0x660
[  442.534710]  ? mark_held_locks+0x130/0x130
[  442.538948]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  442.544654]  ? zap_class+0x640/0x640
[  442.548399]  do_try_to_free_pages+0x3e7/0x1290
[  442.552975]  ? zap_class+0x640/0x640
[  442.556697]  ? shrink_node+0x16b0/0x16b0
[  442.560760]  ? __lock_is_held+0xb5/0x140
[  442.564828]  try_to_free_pages+0x4d0/0xb90
[  442.569060]  ? do_try_to_free_pages+0x1290/0x1290
[  442.573909]  ? lock_acquire+0x1ed/0x520
[  442.577885]  ? set_page_refcounted+0x280/0x280
[  442.582468]  ? lock_release+0xa00/0xa00
[  442.586436]  ? _raw_spin_unlock_irq+0x60/0x80
[  442.590932]  ? psi_memstall_enter+0x240/0x2b0
[  442.595427]  ? psi_memstall_tick+0x230/0x230
[  442.599839]  __alloc_pages_slowpath+0xa48/0x2de0
[  442.604619]  ? warn_alloc+0x120/0x120
[  442.608418]  ? mark_held_locks+0x130/0x130
[  442.612684]  ? find_get_entry+0xaae/0x1120
[  442.616947]  ? filemap_map_pages+0x1a20/0x1a20
[  442.621530]  ? zap_class+0x640/0x640
[  442.625249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.630791]  ? check_preemption_disabled+0x48/0x280
[  442.635804]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.641352]  ? should_fail+0x22d/0xd01
[  442.645244]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  442.650346]  ? zap_class+0x640/0x640
[  442.654080]  ? __lock_is_held+0xb5/0x140
[  442.658189]  ? mark_held_locks+0x130/0x130
[  442.662428]  ? lock_release+0xa00/0xa00
[  442.666399]  ? perf_trace_sched_process_exec+0x860/0x860
[  442.671862]  ? xa_load+0x2ba/0x460
[  442.675400]  ? lock_downgrade+0x900/0x900
[  442.679550]  ? __might_sleep+0x95/0x190
[  442.683524]  __alloc_pages_nodemask+0xad8/0xea0
[  442.688195]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  442.693207]  ? __page_cache_alloc+0x191/0x5c0
[  442.697726]  ? xa_load+0x2e1/0x460
[  442.701280]  ? xa_clear_mark+0x40/0x40
[  442.705189]  ? zap_class+0x640/0x640
[  442.708906]  ? zap_class+0x640/0x640
[  442.712664]  ? zap_class+0x640/0x640
[  442.716373]  ? __do_page_cache_readahead+0x663/0x810
[  442.721478]  ? find_held_lock+0x36/0x1c0
[  442.725546]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  442.731095]  alloc_pages_current+0x173/0x350
[  442.735525]  __page_cache_alloc+0x38c/0x5c0
[  442.739862]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  442.744793]  ? kasan_check_read+0x11/0x20
[  442.748955]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.754230]  ? generic_perform_write+0x6a0/0x6a0
[  442.758984]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.764557]  ? check_preemption_disabled+0x48/0x280
[  442.769581]  filemap_fault+0x1595/0x25f0
[  442.773655]  ? __lock_page_or_retry+0xa00/0xa00
[  442.778337]  ? mark_held_locks+0x130/0x130
[  442.782576]  ? filemap_map_pages+0xd6b/0x1a20
[  442.787068]  ? lock_downgrade+0x900/0x900
[  442.791218]  ? check_preemption_disabled+0x48/0x280
[  442.796232]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  442.801168]  ? kasan_check_read+0x11/0x20
[  442.805316]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.810592]  ? rcu_softirq_qs+0x20/0x20
[  442.814591]  ? filemap_map_pages+0xd92/0x1a20
[  442.819096]  ? find_get_entries_tag+0x1400/0x1400
[  442.823983]  ? debug_object_destroy+0x2b0/0x2b0
[  442.828672]  ? lock_pi_update_atomic+0x150/0x150
[  442.833439]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.838991]  ? lock_acquire+0x1ed/0x520
[  442.842976]  ? ext4_filemap_fault+0x7a/0xad
[  442.847305]  ? lock_release+0xa00/0xa00
[  442.851280]  ? perf_trace_sched_process_exec+0x860/0x860
[  442.856739]  ? print_usage_bug+0xc0/0xc0
[  442.860804]  ? print_usage_bug+0xc0/0xc0
[  442.864876]  ? down_read+0x8d/0x120
[  442.868510]  ? ext4_filemap_fault+0x7a/0xad
[  442.872847]  ? __down_interruptible+0x700/0x700
[  442.877523]  ext4_filemap_fault+0x82/0xad
[  442.881669]  __do_fault+0x100/0x6b0
[  442.885288]  ? find_held_lock+0x36/0x1c0
[  442.889347]  ? pmd_devmap_trans_unstable+0x220/0x220
[  442.894450]  ? mark_held_locks+0x130/0x130
[  442.898682]  ? mark_held_locks+0x130/0x130
[  442.902941]  ? kasan_check_read+0x11/0x20
[  442.907083]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  442.912638]  __handle_mm_fault+0x3ea0/0x5be0
[  442.917064]  ? perf_trace_lock+0x7a0/0x7a0
[  442.921310]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  442.926165]  ? __switch_to_asm+0x34/0x70
[  442.930238]  ? __switch_to_asm+0x34/0x70
[  442.934308]  ? zap_class+0x640/0x640
[  442.938023]  ? zap_class+0x640/0x640
[  442.941735]  ? __x64_sys_futex+0x53e/0x6a0
[  442.945982]  ? find_held_lock+0x36/0x1c0
[  442.950224]  ? handle_mm_fault+0x42a/0xc70
[  442.954466]  ? lock_downgrade+0x900/0x900
[  442.958615]  ? check_preemption_disabled+0x48/0x280
[  442.963637]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  442.968569]  ? kasan_check_read+0x11/0x20
[  442.972733]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  442.978010]  ? rcu_softirq_qs+0x20/0x20
[  442.981991]  ? trace_hardirqs_off_caller+0x310/0x310
[  442.987102]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  442.992644]  ? sync_mm_rss+0x9a/0x1c0
[  442.996462]  handle_mm_fault+0x54f/0xc70
[  443.000528]  ? __handle_mm_fault+0x5be0/0x5be0
[  443.005117]  ? find_vma+0x34/0x190
[  443.008665]  __do_page_fault+0x5e8/0xe60
[  443.012732]  ? trace_hardirqs_off+0xb8/0x310
[  443.017171]  do_page_fault+0xf2/0x7e0
[  443.020975]  ? vmalloc_sync_all+0x30/0x30
[  443.025140]  ? error_entry+0x70/0xd0
[  443.028877]  ? trace_hardirqs_off_caller+0xbb/0x310
[  443.033892]  ? trace_hardirqs_on_caller+0xc0/0x310
[  443.038823]  ? syscall_return_slowpath+0x5e0/0x5e0
[  443.043750]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  443.048613]  ? trace_hardirqs_on_caller+0x310/0x310
[  443.053646]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  443.059103]  ? prepare_exit_to_usermode+0x291/0x3b0
[  443.064117]  ? page_fault+0x8/0x30
[  443.067674]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  443.072518]  ? page_fault+0x8/0x30
[  443.076074]  page_fault+0x1e/0x30
[  443.080004] RIP: 0033:0x45ddf3
[  443.083209] Code: Bad RIP value.
[  443.086568] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  443.091945] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  443.099227] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  443.106491] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  443.113756] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  443.121019] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  443.128301] warn_alloc_show_mem: 1 callbacks suppressed
[  443.128313] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  443.128314] Mem-Info:
[  443.128343] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  443.128343]  active_file:17 inactive_file:17 isolated_file:0
[  443.128343]  unevictable:0 dirty:4 writeback:0 unstable:0
[  443.128343]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  443.128343]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  443.128343]  free:13550 free_pcp:124 free_cma:0
[  443.133682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  443.140955] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  443.143348] Call Trace:
[  443.176379] 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
[  443.185720]  <IRQ>
[  443.213454] lowmem_reserve[]: 0 2818 6321 6321
[  443.216047]  dump_stack+0x244/0x39d
[  443.242118] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  443.244259]  ? dump_stack_print_info.cold.1+0x20/0x20
[  443.248811] lowmem_reserve[]: 0 0 3503 3503
[  443.252437]  warn_alloc.cold.116+0xb7/0x1bd
[  443.279731] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  443.284908]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  443.289200] lowmem_reserve[]: 0 0 0 0
[  443.293530]  ? lock_downgrade+0x900/0x900
[  443.322384] 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
[  443.327251]  ? trace_hardirqs_off+0xb8/0x310
[  443.331037] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  443.335177]  ? trace_hardirqs_off+0xb8/0x310
[  443.348688] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  443.353116]  __alloc_pages_slowpath+0x2651/0x2de0
[  443.367870] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  443.372288]  ? warn_alloc+0x120/0x120
[  443.386983] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  443.391860]  ? warn_alloc+0x120/0x120
[  443.400666] 1360 total pagecache pages
[  443.404457]  ? __lock_acquire+0x62f/0x4c20
[  443.413026] 0 pages in swap cache
[  443.416803]  ? warn_alloc+0x120/0x120
[  443.420685] Swap cache stats: add 0, delete 0, find 0/0
[  443.424901]  ? print_usage_bug+0xc0/0xc0
[  443.428327] Free swap  = 0kB
[  443.432115]  ? print_usage_bug+0xc0/0xc0
[  443.437467] Total swap = 0kB
[  443.441514]  ? mark_held_locks+0x130/0x130
[  443.444512] 1965979 pages RAM
[  443.448564]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.451552] 0 pages HighMem/MovableOnly
[  443.455795]  ? should_fail+0x22d/0xd01
[  443.458867] 342854 pages reserved
[  443.464403]  ? zap_class+0x640/0x640
[  443.468351] 0 pages cma reserved
[  443.472251]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.475751] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  443.479371]  ? __lock_acquire+0x62f/0x4c20
[  443.482872] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  443.487859]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  443.494338] syz-fuzzer cpuset=/ mems_allowed=0
[  443.498564]  ? should_fail+0x22d/0xd01
[  443.522303]  ? mark_held_locks+0x130/0x130
[  443.526537]  ? mark_held_locks+0x130/0x130
[  443.530770]  ? lock_downgrade+0x900/0x900
[  443.534924]  ? zap_class+0x640/0x640
[  443.538678]  ? zap_class+0x640/0x640
[  443.542419]  ? zap_class+0x640/0x640
[  443.546134]  ? do_raw_spin_unlock+0xa7/0x330
[  443.550547]  ? trace_hardirqs_on+0x310/0x310
[  443.554954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.560490]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.566027]  ? check_preemption_disabled+0x48/0x280
[  443.571057]  ? __lock_is_held+0xb5/0x140
[  443.575122]  __alloc_pages_nodemask+0xad8/0xea0
[  443.579789]  ? zap_class+0x640/0x640
[  443.583541]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  443.588571]  ? find_held_lock+0x36/0x1c0
[  443.592665]  ? ____cache_alloc_node+0x1c7/0x1e0
[  443.597350]  ? lock_downgrade+0x900/0x900
[  443.601553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.607094]  cache_grow_begin+0xa5/0x8c0
[  443.611151]  ? do_raw_spin_unlock+0xa7/0x330
[  443.615592]  fallback_alloc+0x204/0x2e0
[  443.619576]  ____cache_alloc_node+0x1c7/0x1e0
[  443.624085]  kmem_cache_alloc_node+0xe3/0x730
[  443.628579]  ? lockdep_hardirqs_on+0x296/0x5b0
[  443.633173]  __alloc_skb+0x119/0x770
[  443.636884]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  443.642267]  ? netdev_alloc_frag+0x1f0/0x1f0
[  443.646731]  ? vprintk_default+0x28/0x30
[  443.650830]  ? vprintk_func+0x85/0x181
[  443.654732]  ? printk+0xa7/0xcf
[  443.658008]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  443.662792]  new_skb+0x26/0x1c0
[  443.666069]  aoecmd_cfg+0x279/0x7f0
[  443.669693]  ? find_held_lock+0x36/0x1c0
[  443.673753]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  443.678079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.683669]  ? __lock_is_held+0xb5/0x140
[  443.687756]  discover_timer+0x50/0x60
[  443.691559]  call_timer_fn+0x272/0x920
[  443.695450]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  443.700292]  ? process_timeout+0x40/0x40
[  443.704376]  ? __run_timers+0x7da/0xc70
[  443.708367]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.712867]  ? _raw_spin_unlock_irq+0x27/0x80
[  443.717384]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  443.722222]  ? lockdep_hardirqs_on+0x296/0x5b0
[  443.726803]  ? trace_hardirqs_on+0xbd/0x310
[  443.731125]  ? kasan_check_read+0x11/0x20
[  443.735283]  ? __run_timers+0x7da/0xc70
[  443.739260]  ? trace_hardirqs_off_caller+0x310/0x310
[  443.744379]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  443.749238]  __run_timers+0x7e5/0xc70
[  443.753058]  ? timer_fixup_init+0x70/0x70
[  443.757215]  ? kasan_check_read+0x11/0x20
[  443.761357]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  443.766630]  ? rcu_softirq_qs+0x20/0x20
[  443.770602]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.776136]  ? check_preemption_disabled+0x48/0x280
[  443.781170]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  443.785924]  ? retint_kernel+0x2d/0x2d
[  443.789844]  ? trace_hardirqs_on_caller+0xc0/0x310
[  443.794770]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  443.799523]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  443.804976]  ? zap_class+0x640/0x640
[  443.808689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.814222]  ? check_preemption_disabled+0x48/0x280
[  443.819241]  ? __lock_is_held+0xb5/0x140
[  443.823297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.828829]  ? check_preemption_disabled+0x48/0x280
[  443.833847]  run_timer_softirq+0x52/0xb0
[  443.837902]  ? rcu_read_lock_sched_held+0x14f/0x180
[  443.842943]  __do_softirq+0x308/0xb7e
[  443.846745]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  443.851236]  ? lock_downgrade+0x900/0x900
[  443.855387]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  443.860507]  ? pvclock_read_flags+0x160/0x160
[  443.865003]  ? lapic_next_event+0x5a/0x90
[  443.869147]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.874689]  ? kvm_clock_read+0x18/0x30
[  443.878682]  ? kvm_sched_clock_read+0x9/0x20
[  443.883088]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  443.888620]  ? check_preemption_disabled+0x48/0x280
[  443.893660]  irq_exit+0x17f/0x1c0
[  443.897112]  smp_apic_timer_interrupt+0x1cb/0x760
[  443.901950]  ? smp_reschedule_interrupt+0x109/0x650
[  443.906983]  ? smp_call_function_single_interrupt+0x650/0x650
[  443.912872]  ? interrupt_entry+0xb5/0xc0
[  443.916929]  ? trace_hardirqs_off_caller+0xbb/0x310
[  443.921942]  ? trace_hardirqs_off_caller+0xbb/0x310
[  443.926957]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  443.931848]  ? trace_hardirqs_on_caller+0x310/0x310
[  443.936860]  ? trace_hardirqs_on_caller+0x310/0x310
[  443.941883]  ? task_prio+0x50/0x50
[  443.945486]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  443.951056]  ? check_preemption_disabled+0x48/0x280
[  443.956077]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  443.960922]  apic_timer_interrupt+0xf/0x20
[  443.965147]  </IRQ>
[  443.967400] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  443.972337] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  443.991278] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  443.998981] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  444.006242] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  444.013508] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  444.020783] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  444.028059] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  444.035359]  skb_clone+0x1bb/0x500
[  444.038995]  ? skb_split+0x11e0/0x11e0
[  444.042887]  ? preempt_notifier_register+0x200/0x200
[  444.047981]  ? __switch_to_asm+0x34/0x70
[  444.052038]  ? __switch_to_asm+0x34/0x70
[  444.056097]  ? __switch_to_asm+0x40/0x70
[  444.060163]  ? __switch_to_asm+0x34/0x70
[  444.064220]  ? __switch_to_asm+0x40/0x70
[  444.068277]  ? __switch_to_asm+0x40/0x70
[  444.072336]  ? __switch_to_asm+0x34/0x70
[  444.076392]  ? __switch_to_asm+0x34/0x70
[  444.080456]  ? __switch_to_asm+0x40/0x70
[  444.084514]  ? __switch_to_asm+0x34/0x70
[  444.088582]  bpf_clone_redirect+0xb9/0x490
[  444.092828]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  444.097850]  ? __sched_text_start+0x8/0x8
[  444.101996]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  444.106778]  ? find_held_lock+0x36/0x1c0
[  444.110862]  ? lock_acquire+0x1ed/0x520
[  444.114839]  ? bpf_test_run+0x3ee/0x7a0
[  444.118817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.124367]  ? check_preemption_disabled+0x48/0x280
[  444.129403]  ? kasan_check_read+0x11/0x20
[  444.133553]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.138846]  ? rcu_softirq_qs+0x20/0x20
[  444.142839]  ? preempt_schedule+0x4d/0x60
[  444.146991]  ? ___preempt_schedule+0x16/0x18
[  444.151412]  ? bpf_test_run+0x271/0x7a0
[  444.155409]  ? netlink_diag_dump+0x2a0/0x2a0
[  444.159876]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.165417]  ? bpf_test_init.isra.10+0x70/0x100
[  444.170096]  ? bpf_prog_test_run_skb+0x762/0xd60
[  444.174876]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  444.179725]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  444.185267]  ? fput+0x130/0x1a0
[  444.188553]  ? __bpf_prog_get+0x9b/0x290
[  444.192618]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  444.197468]  ? bpf_prog_test_run+0x130/0x1a0
[  444.201880]  ? __x64_sys_bpf+0x3d8/0x520
[  444.205939]  ? bpf_prog_get+0x20/0x20
[  444.209759]  ? do_syscall_64+0x1b9/0x820
[  444.213816]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  444.219198]  ? syscall_return_slowpath+0x5e0/0x5e0
[  444.224128]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.228979]  ? trace_hardirqs_on_caller+0x310/0x310
[  444.233994]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  444.239028]  ? prepare_exit_to_usermode+0x291/0x3b0
[  444.244053]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.248906]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  444.254317] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  444.254444] aoe: skb alloc failure
[  444.261259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  444.261264] Call Trace:
[  444.261271]  <IRQ>
[  444.261287]  dump_stack+0x244/0x39d
[  444.261304]  ? dump_stack_print_info.cold.1+0x20/0x20
[  444.264858] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  444.274218]  warn_alloc.cold.116+0xb7/0x1bd
[  444.276797] syz-executor4 cpuset=syz4 mems_allowed=0
[  444.278940]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  444.312430]  ? lock_downgrade+0x900/0x900
[  444.316589]  ? trace_hardirqs_off+0xb8/0x310
[  444.321007]  ? trace_hardirqs_off+0xb8/0x310
[  444.325421]  __alloc_pages_slowpath+0x2651/0x2de0
[  444.330283]  ? warn_alloc+0x120/0x120
[  444.334098]  ? print_usage_bug+0xc0/0xc0
[  444.338163]  ? warn_alloc+0x120/0x120
[  444.341963]  ? warn_alloc+0x120/0x120
[  444.345772]  ? print_usage_bug+0xc0/0xc0
[  444.349860]  ? kvm_clock_read+0x18/0x30
[  444.353829]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  444.358872]  ? print_usage_bug+0xc0/0xc0
[  444.362952]  ? __lock_acquire+0x62f/0x4c20
[  444.367207]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.372755]  ? should_fail+0x22d/0xd01
[  444.376651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.381946]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  444.387044]  ? __lock_acquire+0x62f/0x4c20
[  444.391295]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  444.396413]  ? __lock_acquire+0x62f/0x4c20
[  444.400644]  ? should_fail+0x22d/0xd01
[  444.404524]  ? rcu_irq_exit+0x1a2/0x390
[  444.408514]  ? mark_held_locks+0x130/0x130
[  444.412799]  ? mark_held_locks+0x130/0x130
[  444.417052]  ? mark_held_locks+0xc7/0x130
[  444.421224]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  444.426240]  ? zap_class+0x640/0x640
[  444.429954]  ? print_usage_bug+0xc0/0xc0
[  444.434026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.439593]  ? check_preemption_disabled+0x48/0x280
[  444.444614]  ? __lock_is_held+0xb5/0x140
[  444.448687]  __alloc_pages_nodemask+0xad8/0xea0
[  444.453349]  ? zap_class+0x640/0x640
[  444.457059]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  444.462084]  ? find_held_lock+0x36/0x1c0
[  444.466148]  ? ____cache_alloc_node+0x1c7/0x1e0
[  444.470821]  ? lock_downgrade+0x900/0x900
[  444.474997]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.480538]  cache_grow_begin+0xa5/0x8c0
[  444.484592]  ? do_raw_spin_unlock+0xa7/0x330
[  444.488995]  fallback_alloc+0x204/0x2e0
[  444.492969]  ____cache_alloc_node+0x1c7/0x1e0
[  444.497460]  kmem_cache_alloc_node+0xe3/0x730
[  444.501952]  ? ipv6_get_ifaddr+0x42e/0x620
[  444.506254]  __alloc_skb+0x119/0x770
[  444.509976]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  444.515253]  ? netdev_alloc_frag+0x1f0/0x1f0
[  444.519670]  ? lock_downgrade+0x900/0x900
[  444.523864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.529435]  ? refcount_sub_and_test_checked+0x203/0x310
[  444.534913]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  444.540396]  ? addrconf_rs_timer+0x690/0x690
[  444.544862]  ndisc_alloc_skb+0x144/0x340
[  444.548968]  ndisc_send_rs+0x331/0x6e0
[  444.552873]  addrconf_rs_timer+0x314/0x690
[  444.557119]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.561356]  call_timer_fn+0x272/0x920
[  444.565236]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.569481]  ? process_timeout+0x40/0x40
[  444.573544]  ? mark_held_locks+0xc7/0x130
[  444.577772]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.582258]  ? _raw_spin_unlock_irq+0x27/0x80
[  444.586745]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.590976]  ? lockdep_hardirqs_on+0x296/0x5b0
[  444.595554]  ? trace_hardirqs_on+0xbd/0x310
[  444.599868]  ? kasan_check_read+0x11/0x20
[  444.604010]  ? __run_timers+0x7da/0xc70
[  444.608009]  ? trace_hardirqs_off_caller+0x310/0x310
[  444.613109]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.617346]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  444.621574]  __run_timers+0x7e5/0xc70
[  444.625378]  ? timer_fixup_init+0x70/0x70
[  444.629554]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  444.634565]  ? zap_class+0x640/0x640
[  444.638276]  ? print_usage_bug+0xc0/0xc0
[  444.642332]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  444.647521]  ? find_held_lock+0x36/0x1c0
[  444.651598]  ? zap_class+0x640/0x640
[  444.655315]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.660845]  ? check_preemption_disabled+0x48/0x280
[  444.665862]  ? __lock_is_held+0xb5/0x140
[  444.669917]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.675453]  ? check_preemption_disabled+0x48/0x280
[  444.680471]  run_timer_softirq+0x52/0xb0
[  444.684530]  ? rcu_read_lock_sched_held+0x14f/0x180
[  444.689542]  __do_softirq+0x308/0xb7e
[  444.693345]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  444.697897]  ? lock_downgrade+0x900/0x900
[  444.702046]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  444.707152]  ? pvclock_read_flags+0x160/0x160
[  444.711657]  ? lapic_next_event+0x5a/0x90
[  444.715806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.721347]  ? kvm_clock_read+0x18/0x30
[  444.725321]  ? kvm_sched_clock_read+0x9/0x20
[  444.729735]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  444.735274]  ? check_preemption_disabled+0x48/0x280
[  444.740318]  irq_exit+0x17f/0x1c0
[  444.743773]  smp_apic_timer_interrupt+0x1cb/0x760
[  444.748614]  ? smp_reschedule_interrupt+0x109/0x650
[  444.753631]  ? smp_call_function_single_interrupt+0x650/0x650
[  444.759511]  ? interrupt_entry+0xb5/0xc0
[  444.763581]  ? trace_hardirqs_off_caller+0xbb/0x310
[  444.768598]  ? trace_hardirqs_off_caller+0xbb/0x310
[  444.773645]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.778523]  ? trace_hardirqs_on_caller+0x310/0x310
[  444.783538]  ? trace_hardirqs_on_caller+0x310/0x310
[  444.788558]  ? task_prio+0x50/0x50
[  444.792104]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  444.797642]  ? check_preemption_disabled+0x48/0x280
[  444.802662]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  444.807509]  apic_timer_interrupt+0xf/0x20
[  444.811744]  </IRQ>
[  444.813997] RIP: 0010:lock_acquire+0x268/0x520
[  444.818580] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  444.837477] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  444.845197] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  444.852461] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  444.859723] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  444.866982] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  444.874241] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  444.881531]  ? lruvec_lru_size+0x450/0x450
[  444.885767]  ? kasan_check_read+0x11/0x20
[  444.889937]  ? lock_release+0xa00/0xa00
[  444.893915]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  444.898854]  down_read_trylock+0xda/0x140
[  444.903002]  ? shrink_slab+0x207/0x8c0
[  444.906916]  ? downgrade_write+0x270/0x270
[  444.911198]  shrink_slab+0x207/0x8c0
[  444.914914]  ? shrink_active_list+0x1f00/0x1f00
[  444.919607]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  444.925291]  ? __lock_acquire+0x62f/0x4c20
[  444.929547]  ? percpu_ref_get_many+0x240/0x240
[  444.934141]  ? print_usage_bug+0xc0/0xc0
[  444.938214]  shrink_node+0x431/0x16b0
[  444.942017]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  444.947320]  ? shrink_node_memcg+0x18f0/0x18f0
[  444.952073]  ? kvm_clock_read+0x18/0x30
[  444.956051]  ? ktime_get+0x2c1/0x400
[  444.959820]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  444.964336]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  444.969878]  ? __cpuset_node_allowed+0x19b/0x660
[  444.974633]  ? mark_held_locks+0x130/0x130
[  444.978910]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  444.984626]  ? zap_class+0x640/0x640
[  444.988349]  do_try_to_free_pages+0x3e7/0x1290
[  444.992934]  ? zap_class+0x640/0x640
[  444.996664]  ? shrink_node+0x16b0/0x16b0
[  445.000727]  ? __lock_is_held+0xb5/0x140
[  445.004806]  try_to_free_pages+0x4d0/0xb90
[  445.009047]  ? do_try_to_free_pages+0x1290/0x1290
[  445.013911]  ? lock_acquire+0x1ed/0x520
[  445.017895]  ? set_page_refcounted+0x280/0x280
[  445.022485]  ? lock_release+0xa00/0xa00
[  445.026464]  ? _raw_spin_unlock_irq+0x60/0x80
[  445.030963]  ? psi_memstall_enter+0x240/0x2b0
[  445.035472]  ? psi_memstall_tick+0x230/0x230
[  445.039896]  __alloc_pages_slowpath+0xa48/0x2de0
[  445.044701]  ? warn_alloc+0x120/0x120
[  445.048515]  ? mark_held_locks+0x130/0x130
[  445.052772]  ? find_get_entry+0xaae/0x1120
[  445.057019]  ? filemap_map_pages+0x1a20/0x1a20
[  445.061602]  ? zap_class+0x640/0x640
[  445.065321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.070884]  ? check_preemption_disabled+0x48/0x280
[  445.075901]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.081901]  ? should_fail+0x22d/0xd01
[  445.085798]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.090898]  ? zap_class+0x640/0x640
[  445.094638]  ? __lock_is_held+0xb5/0x140
[  445.098706]  ? mark_held_locks+0x130/0x130
[  445.102948]  ? lock_release+0xa00/0xa00
[  445.106926]  ? perf_trace_sched_process_exec+0x860/0x860
[  445.112379]  ? xa_load+0x2ba/0x460
[  445.115919]  ? lock_downgrade+0x900/0x900
[  445.120069]  ? __might_sleep+0x95/0x190
[  445.124045]  __alloc_pages_nodemask+0xad8/0xea0
[  445.128745]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  445.133772]  ? __page_cache_alloc+0x191/0x5c0
[  445.138278]  ? xa_load+0x2e1/0x460
[  445.141816]  ? xa_clear_mark+0x40/0x40
[  445.145713]  ? zap_class+0x640/0x640
[  445.149427]  ? zap_class+0x640/0x640
[  445.153131]  ? zap_class+0x640/0x640
[  445.156857]  ? __do_page_cache_readahead+0x663/0x810
[  445.161974]  ? find_held_lock+0x36/0x1c0
[  445.166034]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  445.171586]  alloc_pages_current+0x173/0x350
[  445.175997]  __page_cache_alloc+0x38c/0x5c0
[  445.180309]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  445.185335]  ? kasan_check_read+0x11/0x20
[  445.189514]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.194787]  ? generic_perform_write+0x6a0/0x6a0
[  445.199540]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.205072]  ? check_preemption_disabled+0x48/0x280
[  445.210087]  filemap_fault+0x1595/0x25f0
[  445.214155]  ? __lock_page_or_retry+0xa00/0xa00
[  445.218836]  ? mark_held_locks+0x130/0x130
[  445.223083]  ? filemap_map_pages+0xd6b/0x1a20
[  445.227591]  ? lock_downgrade+0x900/0x900
[  445.231764]  ? check_preemption_disabled+0x48/0x280
[  445.236805]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  445.241761]  ? kasan_check_read+0x11/0x20
[  445.245916]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.251208]  ? rcu_softirq_qs+0x20/0x20
[  445.255196]  ? filemap_map_pages+0xd92/0x1a20
[  445.259736]  ? find_get_entries_tag+0x1400/0x1400
[  445.264576]  ? debug_object_destroy+0x2b0/0x2b0
[  445.269240]  ? lock_pi_update_atomic+0x150/0x150
[  445.273987]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.279530]  ? lock_acquire+0x1ed/0x520
[  445.283514]  ? ext4_filemap_fault+0x7a/0xad
[  445.287851]  ? lock_release+0xa00/0xa00
[  445.291823]  ? perf_trace_sched_process_exec+0x860/0x860
[  445.297277]  ? print_usage_bug+0xc0/0xc0
[  445.301346]  ? print_usage_bug+0xc0/0xc0
[  445.305409]  ? down_read+0x8d/0x120
[  445.309045]  ? ext4_filemap_fault+0x7a/0xad
[  445.313362]  ? __down_interruptible+0x700/0x700
[  445.318037]  ext4_filemap_fault+0x82/0xad
[  445.322187]  __do_fault+0x100/0x6b0
[  445.325830]  ? find_held_lock+0x36/0x1c0
[  445.329895]  ? pmd_devmap_trans_unstable+0x220/0x220
[  445.335005]  ? mark_held_locks+0x130/0x130
[  445.339248]  ? mark_held_locks+0x130/0x130
[  445.343488]  ? kasan_check_read+0x11/0x20
[  445.347632]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.353189]  __handle_mm_fault+0x3ea0/0x5be0
[  445.357593]  ? perf_trace_lock+0x7a0/0x7a0
[  445.361824]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  445.366683]  ? __switch_to_asm+0x34/0x70
[  445.370734]  ? __switch_to_asm+0x34/0x70
[  445.374798]  ? zap_class+0x640/0x640
[  445.378520]  ? zap_class+0x640/0x640
[  445.382246]  ? __x64_sys_futex+0x53e/0x6a0
[  445.386512]  ? find_held_lock+0x36/0x1c0
[  445.390576]  ? handle_mm_fault+0x42a/0xc70
[  445.394805]  ? lock_downgrade+0x900/0x900
[  445.398961]  ? check_preemption_disabled+0x48/0x280
[  445.403977]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  445.408902]  ? kasan_check_read+0x11/0x20
[  445.413062]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  445.418352]  ? rcu_softirq_qs+0x20/0x20
[  445.422324]  ? trace_hardirqs_off_caller+0x310/0x310
[  445.427422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  445.432952]  ? sync_mm_rss+0x9a/0x1c0
[  445.436762]  handle_mm_fault+0x54f/0xc70
[  445.440828]  ? __handle_mm_fault+0x5be0/0x5be0
[  445.445402]  ? find_vma+0x34/0x190
[  445.448988]  __do_page_fault+0x5e8/0xe60
[  445.453069]  ? trace_hardirqs_off+0xb8/0x310
[  445.457480]  do_page_fault+0xf2/0x7e0
[  445.461307]  ? vmalloc_sync_all+0x30/0x30
[  445.465500]  ? error_entry+0x70/0xd0
[  445.469237]  ? trace_hardirqs_off_caller+0xbb/0x310
[  445.474244]  ? trace_hardirqs_on_caller+0xc0/0x310
[  445.479173]  ? syscall_return_slowpath+0x5e0/0x5e0
[  445.484130]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.488972]  ? trace_hardirqs_on_caller+0x310/0x310
[  445.493976]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  445.499421]  ? prepare_exit_to_usermode+0x291/0x3b0
[  445.504432]  ? page_fault+0x8/0x30
[  445.507969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  445.512810]  ? page_fault+0x8/0x30
[  445.516345]  page_fault+0x1e/0x30
[  445.519806] RIP: 0033:0x45ddf3
[  445.523018] Code: Bad RIP value.
[  445.526377] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  445.531779] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  445.539060] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  445.546324] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  445.553584] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  445.560842] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  445.568123] warn_alloc_show_mem: 1 callbacks suppressed
[  445.568135] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  445.568136] Mem-Info:
[  445.568181] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  445.568181]  active_file:17 inactive_file:17 isolated_file:0
[  445.568181]  unevictable:0 dirty:4 writeback:0 unstable:0
[  445.568181]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  445.568181]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  445.568181]  free:13550 free_pcp:124 free_cma:0
[  445.573543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  445.580843] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  445.583239] Call Trace:
[  445.616273] 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
[  445.625612]  <IRQ>
[  445.653350] lowmem_reserve[]: 0 2818 6321 6321
[  445.655931]  dump_stack+0x244/0x39d
[  445.682042] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  445.684196]  ? dump_stack_print_info.cold.1+0x20/0x20
[  445.688750] lowmem_reserve[]: 0 0 3503 3503
[  445.692373]  warn_alloc.cold.116+0xb7/0x1bd
[  445.719668] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  445.724849]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  445.729152] lowmem_reserve[]: 0 0 0 0
[  445.733502]  ? lock_downgrade+0x900/0x900
[  445.762365] 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
[  445.767205]  ? trace_hardirqs_off+0xb8/0x310
[  445.770975] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  445.775117]  ? trace_hardirqs_off+0xb8/0x310
[  445.788630] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  445.793066]  __alloc_pages_slowpath+0x2651/0x2de0
[  445.807780] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  445.812202]  ? warn_alloc+0x120/0x120
[  445.826895] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  445.831718]  ? warn_alloc+0x120/0x120
[  445.840556] 1360 total pagecache pages
[  445.844343]  ? __lock_acquire+0x62f/0x4c20
[  445.852893] 0 pages in swap cache
[  445.856669]  ? warn_alloc+0x120/0x120
[  445.860533] Swap cache stats: add 0, delete 0, find 0/0
[  445.864781]  ? print_usage_bug+0xc0/0xc0
[  445.868206] Free swap  = 0kB
[  445.871990]  ? print_usage_bug+0xc0/0xc0
[  445.877322] Total swap = 0kB
[  445.881366]  ? mark_held_locks+0x130/0x130
[  445.884358] 1965979 pages RAM
[  445.888410]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  445.891398] 0 pages HighMem/MovableOnly
[  445.895657]  ? should_fail+0x22d/0xd01
[  445.898733] 342854 pages reserved
[  445.904260]  ? zap_class+0x640/0x640
[  445.908208] 0 pages cma reserved
[  445.912086]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.915600] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  445.919226]  ? __lock_acquire+0x62f/0x4c20
[  445.922685] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  445.927658]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  445.934120] syz-fuzzer cpuset=/ mems_allowed=0
[  445.938349]  ? should_fail+0x22d/0xd01
[  445.962084]  ? mark_held_locks+0x130/0x130
[  445.966329]  ? mark_held_locks+0x130/0x130
[  445.970558]  ? lock_downgrade+0x900/0x900
[  445.974721]  ? zap_class+0x640/0x640
[  445.978439]  ? zap_class+0x640/0x640
[  445.982191]  ? zap_class+0x640/0x640
[  445.985963]  ? do_raw_spin_unlock+0xa7/0x330
[  445.990371]  ? trace_hardirqs_on+0x310/0x310
[  445.994786]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.000318]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.005850]  ? check_preemption_disabled+0x48/0x280
[  446.010870]  ? __lock_is_held+0xb5/0x140
[  446.014931]  __alloc_pages_nodemask+0xad8/0xea0
[  446.019594]  ? zap_class+0x640/0x640
[  446.023335]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  446.028358]  ? find_held_lock+0x36/0x1c0
[  446.032449]  ? ____cache_alloc_node+0x1c7/0x1e0
[  446.037112]  ? lock_downgrade+0x900/0x900
[  446.041282]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.046817]  cache_grow_begin+0xa5/0x8c0
[  446.050876]  ? do_raw_spin_unlock+0xa7/0x330
[  446.055285]  fallback_alloc+0x204/0x2e0
[  446.059260]  ____cache_alloc_node+0x1c7/0x1e0
[  446.063809]  kmem_cache_alloc_node+0xe3/0x730
[  446.068299]  ? lockdep_hardirqs_on+0x296/0x5b0
[  446.072886]  __alloc_skb+0x119/0x770
[  446.076594]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  446.081955]  ? netdev_alloc_frag+0x1f0/0x1f0
[  446.086364]  ? vprintk_default+0x28/0x30
[  446.090426]  ? vprintk_func+0x85/0x181
[  446.094320]  ? printk+0xa7/0xcf
[  446.097594]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  446.102418]  new_skb+0x26/0x1c0
[  446.105731]  aoecmd_cfg+0x279/0x7f0
[  446.109354]  ? find_held_lock+0x36/0x1c0
[  446.113442]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  446.117775]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.123311]  ? __lock_is_held+0xb5/0x140
[  446.127371]  discover_timer+0x50/0x60
[  446.131166]  call_timer_fn+0x272/0x920
[  446.135089]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  446.139919]  ? process_timeout+0x40/0x40
[  446.143987]  ? __run_timers+0x7da/0xc70
[  446.147974]  ? _raw_spin_unlock_irq+0x27/0x80
[  446.152473]  ? _raw_spin_unlock_irq+0x27/0x80
[  446.156956]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  446.161787]  ? lockdep_hardirqs_on+0x296/0x5b0
[  446.166377]  ? trace_hardirqs_on+0xbd/0x310
[  446.170690]  ? kasan_check_read+0x11/0x20
[  446.174829]  ? __run_timers+0x7da/0xc70
[  446.178799]  ? trace_hardirqs_off_caller+0x310/0x310
[  446.183950]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  446.188836]  __run_timers+0x7e5/0xc70
[  446.192636]  ? timer_fixup_init+0x70/0x70
[  446.196774]  ? kasan_check_read+0x11/0x20
[  446.200913]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.206199]  ? rcu_softirq_qs+0x20/0x20
[  446.210269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.215809]  ? check_preemption_disabled+0x48/0x280
[  446.220897]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  446.225658]  ? retint_kernel+0x2d/0x2d
[  446.229536]  ? trace_hardirqs_on_caller+0xc0/0x310
[  446.234459]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  446.239207]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  446.244679]  ? zap_class+0x640/0x640
[  446.248405]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.254003]  ? check_preemption_disabled+0x48/0x280
[  446.259051]  ? __lock_is_held+0xb5/0x140
[  446.263105]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.268633]  ? check_preemption_disabled+0x48/0x280
[  446.273664]  run_timer_softirq+0x52/0xb0
[  446.277723]  ? rcu_read_lock_sched_held+0x14f/0x180
[  446.282741]  __do_softirq+0x308/0xb7e
[  446.286558]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  446.291049]  ? lock_downgrade+0x900/0x900
[  446.295193]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  446.300299]  ? pvclock_read_flags+0x160/0x160
[  446.304793]  ? lapic_next_event+0x5a/0x90
[  446.308968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.314515]  ? kvm_clock_read+0x18/0x30
[  446.318507]  ? kvm_sched_clock_read+0x9/0x20
[  446.322916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.328455]  ? check_preemption_disabled+0x48/0x280
[  446.333483]  irq_exit+0x17f/0x1c0
[  446.336938]  smp_apic_timer_interrupt+0x1cb/0x760
[  446.341779]  ? smp_reschedule_interrupt+0x109/0x650
[  446.346821]  ? smp_call_function_single_interrupt+0x650/0x650
[  446.352703]  ? interrupt_entry+0xb5/0xc0
[  446.356781]  ? trace_hardirqs_off_caller+0xbb/0x310
[  446.361795]  ? trace_hardirqs_off_caller+0xbb/0x310
[  446.366811]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.371659]  ? trace_hardirqs_on_caller+0x310/0x310
[  446.376674]  ? trace_hardirqs_on_caller+0x310/0x310
[  446.381689]  ? task_prio+0x50/0x50
[  446.385229]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.390777]  ? check_preemption_disabled+0x48/0x280
[  446.395801]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.400669]  apic_timer_interrupt+0xf/0x20
[  446.404909]  </IRQ>
[  446.407166] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  446.412101] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  446.430999] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  446.438702] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  446.445982] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  446.453246] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  446.460514] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  446.467814] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  446.475117]  skb_clone+0x1bb/0x500
[  446.478663]  ? skb_split+0x11e0/0x11e0
[  446.482565]  ? preempt_notifier_register+0x200/0x200
[  446.487693]  ? __switch_to_asm+0x34/0x70
[  446.491752]  ? __switch_to_asm+0x34/0x70
[  446.495823]  ? __switch_to_asm+0x40/0x70
[  446.499884]  ? __switch_to_asm+0x34/0x70
[  446.503939]  ? __switch_to_asm+0x40/0x70
[  446.508001]  ? __switch_to_asm+0x40/0x70
[  446.512070]  ? __switch_to_asm+0x34/0x70
[  446.516142]  ? __switch_to_asm+0x34/0x70
[  446.520207]  ? __switch_to_asm+0x40/0x70
[  446.524264]  ? __switch_to_asm+0x34/0x70
[  446.528328]  bpf_clone_redirect+0xb9/0x490
[  446.532612]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  446.537643]  ? __sched_text_start+0x8/0x8
[  446.541789]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  446.546601]  ? find_held_lock+0x36/0x1c0
[  446.550684]  ? lock_acquire+0x1ed/0x520
[  446.554660]  ? bpf_test_run+0x3ee/0x7a0
[  446.558645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.564182]  ? check_preemption_disabled+0x48/0x280
[  446.569218]  ? kasan_check_read+0x11/0x20
[  446.573361]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.578634]  ? rcu_softirq_qs+0x20/0x20
[  446.582629]  ? preempt_schedule+0x4d/0x60
[  446.586791]  ? ___preempt_schedule+0x16/0x18
[  446.591202]  ? bpf_test_run+0x271/0x7a0
[  446.595193]  ? netlink_diag_dump+0x2a0/0x2a0
[  446.599632]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.605174]  ? bpf_test_init.isra.10+0x70/0x100
[  446.609844]  ? bpf_prog_test_run_skb+0x762/0xd60
[  446.614605]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  446.619456]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  446.625023]  ? fput+0x130/0x1a0
[  446.628322]  ? __bpf_prog_get+0x9b/0x290
[  446.632401]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  446.637274]  ? bpf_prog_test_run+0x130/0x1a0
[  446.641678]  ? __x64_sys_bpf+0x3d8/0x520
[  446.645736]  ? bpf_prog_get+0x20/0x20
[  446.649551]  ? do_syscall_64+0x1b9/0x820
[  446.653621]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  446.658980]  ? syscall_return_slowpath+0x5e0/0x5e0
[  446.663906]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.668769]  ? trace_hardirqs_on_caller+0x310/0x310
[  446.673793]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  446.678815]  ? prepare_exit_to_usermode+0x291/0x3b0
[  446.683865]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  446.688714]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  446.694102] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  446.694178] aoe: skb alloc failure
[  446.701023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  446.701028] Call Trace:
[  446.701033]  <IRQ>
[  446.701048]  dump_stack+0x244/0x39d
[  446.701067]  ? dump_stack_print_info.cold.1+0x20/0x20
[  446.704613] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  446.713954]  warn_alloc.cold.116+0xb7/0x1bd
[  446.716503] syz-executor4 cpuset=syz4 mems_allowed=0
[  446.718643]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  446.752137]  ? lock_downgrade+0x900/0x900
[  446.756296]  ? trace_hardirqs_off+0xb8/0x310
[  446.760721]  ? trace_hardirqs_off+0xb8/0x310
[  446.765136]  __alloc_pages_slowpath+0x2651/0x2de0
[  446.770004]  ? warn_alloc+0x120/0x120
[  446.773801]  ? print_usage_bug+0xc0/0xc0
[  446.777863]  ? warn_alloc+0x120/0x120
[  446.781663]  ? warn_alloc+0x120/0x120
[  446.785461]  ? print_usage_bug+0xc0/0xc0
[  446.789523]  ? kvm_clock_read+0x18/0x30
[  446.793508]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  446.798551]  ? print_usage_bug+0xc0/0xc0
[  446.802628]  ? __lock_acquire+0x62f/0x4c20
[  446.806876]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  446.812443]  ? should_fail+0x22d/0xd01
[  446.816329]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.821605]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  446.826708]  ? __lock_acquire+0x62f/0x4c20
[  446.830961]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  446.836055]  ? __lock_acquire+0x62f/0x4c20
[  446.840282]  ? should_fail+0x22d/0xd01
[  446.844168]  ? rcu_irq_exit+0x1a2/0x390
[  446.848165]  ? mark_held_locks+0x130/0x130
[  446.852420]  ? mark_held_locks+0x130/0x130
[  446.856687]  ? mark_held_locks+0xc7/0x130
[  446.860844]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  446.865862]  ? zap_class+0x640/0x640
[  446.869617]  ? print_usage_bug+0xc0/0xc0
[  446.873676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.879212]  ? check_preemption_disabled+0x48/0x280
[  446.884244]  ? __lock_is_held+0xb5/0x140
[  446.888306]  __alloc_pages_nodemask+0xad8/0xea0
[  446.892991]  ? zap_class+0x640/0x640
[  446.896716]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  446.901770]  ? find_held_lock+0x36/0x1c0
[  446.905869]  ? ____cache_alloc_node+0x1c7/0x1e0
[  446.910558]  ? lock_downgrade+0x900/0x900
[  446.914732]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.920274]  cache_grow_begin+0xa5/0x8c0
[  446.924330]  ? do_raw_spin_unlock+0xa7/0x330
[  446.928770]  fallback_alloc+0x204/0x2e0
[  446.932751]  ____cache_alloc_node+0x1c7/0x1e0
[  446.937259]  kmem_cache_alloc_node+0xe3/0x730
[  446.941778]  ? ipv6_get_ifaddr+0x42e/0x620
[  446.946027]  __alloc_skb+0x119/0x770
[  446.949953]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  446.955229]  ? netdev_alloc_frag+0x1f0/0x1f0
[  446.959677]  ? lock_downgrade+0x900/0x900
[  446.963870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  446.969417]  ? refcount_sub_and_test_checked+0x203/0x310
[  446.974868]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  446.980317]  ? addrconf_rs_timer+0x690/0x690
[  446.984736]  ndisc_alloc_skb+0x144/0x340
[  446.988845]  ndisc_send_rs+0x331/0x6e0
[  446.992730]  addrconf_rs_timer+0x314/0x690
[  446.996994]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  447.001230]  call_timer_fn+0x272/0x920
[  447.005130]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  447.009363]  ? process_timeout+0x40/0x40
[  447.013431]  ? mark_held_locks+0xc7/0x130
[  447.017598]  ? _raw_spin_unlock_irq+0x27/0x80
[  447.022089]  ? _raw_spin_unlock_irq+0x27/0x80
[  447.026589]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  447.030837]  ? lockdep_hardirqs_on+0x296/0x5b0
[  447.035416]  ? trace_hardirqs_on+0xbd/0x310
[  447.039762]  ? kasan_check_read+0x11/0x20
[  447.043904]  ? __run_timers+0x7da/0xc70
[  447.047878]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.052982]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  447.057261]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  447.061490]  __run_timers+0x7e5/0xc70
[  447.065307]  ? timer_fixup_init+0x70/0x70
[  447.069454]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  447.074471]  ? zap_class+0x640/0x640
[  447.078195]  ? print_usage_bug+0xc0/0xc0
[  447.082787]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  447.087987]  ? find_held_lock+0x36/0x1c0
[  447.092066]  ? zap_class+0x640/0x640
[  447.095787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.101329]  ? check_preemption_disabled+0x48/0x280
[  447.106360]  ? __lock_is_held+0xb5/0x140
[  447.110425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.115964]  ? check_preemption_disabled+0x48/0x280
[  447.121040]  run_timer_softirq+0x52/0xb0
[  447.125120]  ? rcu_read_lock_sched_held+0x14f/0x180
[  447.130136]  __do_softirq+0x308/0xb7e
[  447.133953]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  447.138448]  ? lock_downgrade+0x900/0x900
[  447.142603]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  447.147714]  ? pvclock_read_flags+0x160/0x160
[  447.152221]  ? lapic_next_event+0x5a/0x90
[  447.156388]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.161950]  ? kvm_clock_read+0x18/0x30
[  447.165926]  ? kvm_sched_clock_read+0x9/0x20
[  447.170341]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.175877]  ? check_preemption_disabled+0x48/0x280
[  447.180903]  irq_exit+0x17f/0x1c0
[  447.184358]  smp_apic_timer_interrupt+0x1cb/0x760
[  447.189203]  ? smp_reschedule_interrupt+0x109/0x650
[  447.194219]  ? smp_call_function_single_interrupt+0x650/0x650
[  447.200100]  ? interrupt_entry+0xb5/0xc0
[  447.204168]  ? trace_hardirqs_off_caller+0xbb/0x310
[  447.209187]  ? trace_hardirqs_off_caller+0xbb/0x310
[  447.214200]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.219043]  ? trace_hardirqs_on_caller+0x310/0x310
[  447.224053]  ? trace_hardirqs_on_caller+0x310/0x310
[  447.229062]  ? task_prio+0x50/0x50
[  447.232595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.238124]  ? check_preemption_disabled+0x48/0x280
[  447.243141]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.247996]  apic_timer_interrupt+0xf/0x20
[  447.252224]  </IRQ>
[  447.254459] RIP: 0010:lock_acquire+0x268/0x520
[  447.259040] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  447.277950] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  447.285657] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  447.292921] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  447.300196] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  447.307460] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  447.314722] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  447.322042]  ? lruvec_lru_size+0x450/0x450
[  447.326269]  ? kasan_check_read+0x11/0x20
[  447.330419]  ? lock_release+0xa00/0xa00
[  447.334424]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  447.339359]  down_read_trylock+0xda/0x140
[  447.343503]  ? shrink_slab+0x207/0x8c0
[  447.347385]  ? downgrade_write+0x270/0x270
[  447.351659]  shrink_slab+0x207/0x8c0
[  447.355382]  ? shrink_active_list+0x1f00/0x1f00
[  447.360053]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  447.365674]  ? __lock_acquire+0x62f/0x4c20
[  447.369902]  ? percpu_ref_get_many+0x240/0x240
[  447.374502]  ? print_usage_bug+0xc0/0xc0
[  447.378566]  shrink_node+0x431/0x16b0
[  447.382359]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  447.387660]  ? shrink_node_memcg+0x18f0/0x18f0
[  447.392236]  ? kvm_clock_read+0x18/0x30
[  447.396204]  ? ktime_get+0x2c1/0x400
[  447.399935]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  447.404427]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  447.409961]  ? __cpuset_node_allowed+0x19b/0x660
[  447.414708]  ? mark_held_locks+0x130/0x130
[  447.418943]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  447.424647]  ? zap_class+0x640/0x640
[  447.428361]  do_try_to_free_pages+0x3e7/0x1290
[  447.432939]  ? zap_class+0x640/0x640
[  447.436659]  ? shrink_node+0x16b0/0x16b0
[  447.440716]  ? __lock_is_held+0xb5/0x140
[  447.444783]  try_to_free_pages+0x4d0/0xb90
[  447.449050]  ? do_try_to_free_pages+0x1290/0x1290
[  447.453953]  ? lock_acquire+0x1ed/0x520
[  447.457924]  ? set_page_refcounted+0x280/0x280
[  447.462561]  ? lock_release+0xa00/0xa00
[  447.466537]  ? _raw_spin_unlock_irq+0x60/0x80
[  447.471031]  ? psi_memstall_enter+0x240/0x2b0
[  447.475527]  ? psi_memstall_tick+0x230/0x230
[  447.479949]  __alloc_pages_slowpath+0xa48/0x2de0
[  447.484738]  ? warn_alloc+0x120/0x120
[  447.488539]  ? mark_held_locks+0x130/0x130
[  447.492782]  ? find_get_entry+0xaae/0x1120
[  447.497023]  ? filemap_map_pages+0x1a20/0x1a20
[  447.501624]  ? zap_class+0x640/0x640
[  447.505341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.510899]  ? check_preemption_disabled+0x48/0x280
[  447.515941]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.521481]  ? should_fail+0x22d/0xd01
[  447.525374]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  447.530487]  ? zap_class+0x640/0x640
[  447.534253]  ? __lock_is_held+0xb5/0x140
[  447.538321]  ? mark_held_locks+0x130/0x130
[  447.542559]  ? lock_release+0xa00/0xa00
[  447.546539]  ? perf_trace_sched_process_exec+0x860/0x860
[  447.551989]  ? xa_load+0x2ba/0x460
[  447.555551]  ? lock_downgrade+0x900/0x900
[  447.559716]  ? __might_sleep+0x95/0x190
[  447.563695]  __alloc_pages_nodemask+0xad8/0xea0
[  447.568371]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  447.573404]  ? __page_cache_alloc+0x191/0x5c0
[  447.577898]  ? xa_load+0x2e1/0x460
[  447.581441]  ? xa_clear_mark+0x40/0x40
[  447.585332]  ? zap_class+0x640/0x640
[  447.589050]  ? zap_class+0x640/0x640
[  447.592762]  ? zap_class+0x640/0x640
[  447.596477]  ? __do_page_cache_readahead+0x663/0x810
[  447.601583]  ? find_held_lock+0x36/0x1c0
[  447.605646]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  447.611194]  alloc_pages_current+0x173/0x350
[  447.615605]  __page_cache_alloc+0x38c/0x5c0
[  447.619941]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  447.624867]  ? kasan_check_read+0x11/0x20
[  447.629029]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  447.634302]  ? generic_perform_write+0x6a0/0x6a0
[  447.639058]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.644591]  ? check_preemption_disabled+0x48/0x280
[  447.649629]  filemap_fault+0x1595/0x25f0
[  447.653698]  ? __lock_page_or_retry+0xa00/0xa00
[  447.658365]  ? mark_held_locks+0x130/0x130
[  447.662606]  ? filemap_map_pages+0xd6b/0x1a20
[  447.667099]  ? lock_downgrade+0x900/0x900
[  447.671270]  ? check_preemption_disabled+0x48/0x280
[  447.676313]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  447.681283]  ? kasan_check_read+0x11/0x20
[  447.685432]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  447.690707]  ? rcu_softirq_qs+0x20/0x20
[  447.694692]  ? filemap_map_pages+0xd92/0x1a20
[  447.699201]  ? find_get_entries_tag+0x1400/0x1400
[  447.704046]  ? debug_object_destroy+0x2b0/0x2b0
[  447.708720]  ? lock_pi_update_atomic+0x150/0x150
[  447.713473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.719018]  ? lock_acquire+0x1ed/0x520
[  447.723000]  ? ext4_filemap_fault+0x7a/0xad
[  447.727330]  ? lock_release+0xa00/0xa00
[  447.731324]  ? perf_trace_sched_process_exec+0x860/0x860
[  447.736785]  ? print_usage_bug+0xc0/0xc0
[  447.740864]  ? print_usage_bug+0xc0/0xc0
[  447.744935]  ? down_read+0x8d/0x120
[  447.748554]  ? ext4_filemap_fault+0x7a/0xad
[  447.752888]  ? __down_interruptible+0x700/0x700
[  447.757577]  ext4_filemap_fault+0x82/0xad
[  447.761729]  __do_fault+0x100/0x6b0
[  447.765362]  ? find_held_lock+0x36/0x1c0
[  447.769427]  ? pmd_devmap_trans_unstable+0x220/0x220
[  447.774527]  ? mark_held_locks+0x130/0x130
[  447.778801]  ? mark_held_locks+0x130/0x130
[  447.783073]  ? kasan_check_read+0x11/0x20
[  447.787232]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  447.792769]  __handle_mm_fault+0x3ea0/0x5be0
[  447.797189]  ? perf_trace_lock+0x7a0/0x7a0
[  447.801474]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  447.806367]  ? __switch_to_asm+0x34/0x70
[  447.810425]  ? __switch_to_asm+0x34/0x70
[  447.814490]  ? zap_class+0x640/0x640
[  447.818227]  ? zap_class+0x640/0x640
[  447.821944]  ? __x64_sys_futex+0x53e/0x6a0
[  447.826185]  ? find_held_lock+0x36/0x1c0
[  447.830253]  ? handle_mm_fault+0x42a/0xc70
[  447.834521]  ? lock_downgrade+0x900/0x900
[  447.838666]  ? check_preemption_disabled+0x48/0x280
[  447.843697]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  447.848633]  ? kasan_check_read+0x11/0x20
[  447.852776]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  447.858049]  ? rcu_softirq_qs+0x20/0x20
[  447.862019]  ? trace_hardirqs_off_caller+0x310/0x310
[  447.867120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  447.872649]  ? sync_mm_rss+0x9a/0x1c0
[  447.876449]  handle_mm_fault+0x54f/0xc70
[  447.880511]  ? __handle_mm_fault+0x5be0/0x5be0
[  447.885107]  ? find_vma+0x34/0x190
[  447.888650]  __do_page_fault+0x5e8/0xe60
[  447.892722]  ? trace_hardirqs_off+0xb8/0x310
[  447.897136]  do_page_fault+0xf2/0x7e0
[  447.900959]  ? vmalloc_sync_all+0x30/0x30
[  447.905102]  ? error_entry+0x70/0xd0
[  447.908809]  ? trace_hardirqs_off_caller+0xbb/0x310
[  447.913818]  ? trace_hardirqs_on_caller+0xc0/0x310
[  447.918745]  ? syscall_return_slowpath+0x5e0/0x5e0
[  447.923699]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.928610]  ? trace_hardirqs_on_caller+0x310/0x310
[  447.933675]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  447.939123]  ? prepare_exit_to_usermode+0x291/0x3b0
[  447.944131]  ? page_fault+0x8/0x30
[  447.947674]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  447.952533]  ? page_fault+0x8/0x30
[  447.956099]  page_fault+0x1e/0x30
[  447.959544] RIP: 0033:0x45ddf3
[  447.962759] Code: Bad RIP value.
[  447.966113] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  447.971483] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  447.978777] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  447.986041] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  447.993314] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  448.000578] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  448.007896] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  448.007900] warn_alloc_show_mem: 1 callbacks suppressed
[  448.007907] Mem-Info:
[  448.015194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  448.020571] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  448.020571]  active_file:17 inactive_file:17 isolated_file:0
[  448.020571]  unevictable:0 dirty:4 writeback:0 unstable:0
[  448.020571]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  448.020571]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  448.020571]  free:13550 free_pcp:124 free_cma:0
[  448.022936] Call Trace:
[  448.022945]  <IRQ>
[  448.032354] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  448.065380]  dump_stack+0x244/0x39d
[  448.067939] 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
[  448.070086]  ? dump_stack_print_info.cold.1+0x20/0x20
[  448.098964] lowmem_reserve[]: 0 2818 6321 6321
[  448.102628]  warn_alloc.cold.116+0xb7/0x1bd
[  448.128721] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  448.133896]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  448.138446] lowmem_reserve[]: 0 0 3503 3503
[  448.142759]  ? lock_downgrade+0x900/0x900
[  448.170057] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  448.174893]  ? trace_hardirqs_off+0xb8/0x310
[  448.179192] lowmem_reserve[]: 0 0 0 0
[  448.183333]  ? trace_hardirqs_off+0xb8/0x310
[  448.212206] 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
[  448.216609]  __alloc_pages_slowpath+0x2651/0x2de0
[  448.220381] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  448.224798]  ? warn_alloc+0x120/0x120
[  448.238275] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  448.243129]  ? warn_alloc+0x120/0x120
[  448.257848] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  448.261635]  ? __lock_acquire+0x62f/0x4c20
[  448.276358] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  448.280147]  ? warn_alloc+0x120/0x120
[  448.288966] 1360 total pagecache pages
[  448.293199]  ? print_usage_bug+0xc0/0xc0
[  448.301757] 0 pages in swap cache
[  448.305537]  ? print_usage_bug+0xc0/0xc0
[  448.309400] Swap cache stats: add 0, delete 0, find 0/0
[  448.313465]  ? mark_held_locks+0x130/0x130
[  448.316887] Free swap  = 0kB
[  448.320958]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.326293] Total swap = 0kB
[  448.330548]  ? should_fail+0x22d/0xd01
[  448.333539] 1965979 pages RAM
[  448.339075]  ? zap_class+0x640/0x640
[  448.342068] 0 pages HighMem/MovableOnly
[  448.345952]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  448.349028] 342854 pages reserved
[  448.352729]  ? __lock_acquire+0x62f/0x4c20
[  448.356677] 0 pages cma reserved
[  448.361771]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  448.365268] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  448.369423]  ? should_fail+0x22d/0xd01
[  448.373308] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  448.377875]  ? mark_held_locks+0x130/0x130
[  448.377890]  ? mark_held_locks+0x130/0x130
[  448.384647] syz-fuzzer cpuset=/ mems_allowed=0
[  448.388519]  ? lock_downgrade+0x900/0x900
[  448.388535]  ? zap_class+0x640/0x640
[  448.388547]  ? zap_class+0x640/0x640
[  448.423452]  ? zap_class+0x640/0x640
[  448.427165]  ? do_raw_spin_unlock+0xa7/0x330
[  448.431566]  ? trace_hardirqs_on+0x310/0x310
[  448.435968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.441500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.447035]  ? check_preemption_disabled+0x48/0x280
[  448.452057]  ? __lock_is_held+0xb5/0x140
[  448.456126]  __alloc_pages_nodemask+0xad8/0xea0
[  448.460833]  ? zap_class+0x640/0x640
[  448.464544]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  448.469563]  ? find_held_lock+0x36/0x1c0
[  448.473625]  ? ____cache_alloc_node+0x1c7/0x1e0
[  448.478313]  ? lock_downgrade+0x900/0x900
[  448.482467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.488002]  cache_grow_begin+0xa5/0x8c0
[  448.492056]  ? do_raw_spin_unlock+0xa7/0x330
[  448.496477]  fallback_alloc+0x204/0x2e0
[  448.500469]  ____cache_alloc_node+0x1c7/0x1e0
[  448.504965]  kmem_cache_alloc_node+0xe3/0x730
[  448.509472]  ? lockdep_hardirqs_on+0x296/0x5b0
[  448.514121]  __alloc_skb+0x119/0x770
[  448.517828]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  448.523193]  ? netdev_alloc_frag+0x1f0/0x1f0
[  448.527609]  ? vprintk_default+0x28/0x30
[  448.531705]  ? vprintk_func+0x85/0x181
[  448.535649]  ? printk+0xa7/0xcf
[  448.538924]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  448.543688]  new_skb+0x26/0x1c0
[  448.546961]  aoecmd_cfg+0x279/0x7f0
[  448.550583]  ? find_held_lock+0x36/0x1c0
[  448.554642]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  448.558962]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.564537]  ? __lock_is_held+0xb5/0x140
[  448.568612]  discover_timer+0x50/0x60
[  448.572422]  call_timer_fn+0x272/0x920
[  448.576345]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  448.581186]  ? process_timeout+0x40/0x40
[  448.585248]  ? __run_timers+0x7da/0xc70
[  448.589263]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.593769]  ? _raw_spin_unlock_irq+0x27/0x80
[  448.598257]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  448.603093]  ? lockdep_hardirqs_on+0x296/0x5b0
[  448.607672]  ? trace_hardirqs_on+0xbd/0x310
[  448.611986]  ? kasan_check_read+0x11/0x20
[  448.616143]  ? __run_timers+0x7da/0xc70
[  448.620123]  ? trace_hardirqs_off_caller+0x310/0x310
[  448.625252]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  448.630109]  __run_timers+0x7e5/0xc70
[  448.633977]  ? timer_fixup_init+0x70/0x70
[  448.638198]  ? kasan_check_read+0x11/0x20
[  448.642345]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  448.647621]  ? rcu_softirq_qs+0x20/0x20
[  448.651591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.657127]  ? check_preemption_disabled+0x48/0x280
[  448.662151]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  448.666915]  ? retint_kernel+0x2d/0x2d
[  448.670797]  ? trace_hardirqs_on_caller+0xc0/0x310
[  448.675772]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  448.680543]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  448.685991]  ? zap_class+0x640/0x640
[  448.689740]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.695277]  ? check_preemption_disabled+0x48/0x280
[  448.700318]  ? __lock_is_held+0xb5/0x140
[  448.704381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.709917]  ? check_preemption_disabled+0x48/0x280
[  448.714939]  run_timer_softirq+0x52/0xb0
[  448.718997]  ? rcu_read_lock_sched_held+0x14f/0x180
[  448.724010]  __do_softirq+0x308/0xb7e
[  448.727811]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  448.732328]  ? lock_downgrade+0x900/0x900
[  448.736479]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  448.741588]  ? pvclock_read_flags+0x160/0x160
[  448.746085]  ? lapic_next_event+0x5a/0x90
[  448.750232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.755780]  ? kvm_clock_read+0x18/0x30
[  448.759760]  ? kvm_sched_clock_read+0x9/0x20
[  448.764172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  448.769714]  ? check_preemption_disabled+0x48/0x280
[  448.774753]  irq_exit+0x17f/0x1c0
[  448.778210]  smp_apic_timer_interrupt+0x1cb/0x760
[  448.783060]  ? smp_reschedule_interrupt+0x109/0x650
[  448.788080]  ? smp_call_function_single_interrupt+0x650/0x650
[  448.793969]  ? interrupt_entry+0xb5/0xc0
[  448.798048]  ? trace_hardirqs_off_caller+0xbb/0x310
[  448.803060]  ? trace_hardirqs_off_caller+0xbb/0x310
[  448.808077]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  448.812917]  ? trace_hardirqs_on_caller+0x310/0x310
[  448.817929]  ? trace_hardirqs_on_caller+0x310/0x310
[  448.823055]  ? task_prio+0x50/0x50
[  448.826591]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  448.832136]  ? check_preemption_disabled+0x48/0x280
[  448.837169]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  448.842011]  apic_timer_interrupt+0xf/0x20
[  448.846253]  </IRQ>
[  448.848489] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  448.853417] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  448.872333] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  448.880031] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  448.887291] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  448.894553] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  448.901812] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  448.909074] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  448.916396]  skb_clone+0x1bb/0x500
[  448.919954]  ? skb_split+0x11e0/0x11e0
[  448.923840]  ? preempt_notifier_register+0x200/0x200
[  448.928933]  ? __switch_to_asm+0x34/0x70
[  448.932985]  ? __switch_to_asm+0x34/0x70
[  448.937048]  ? __switch_to_asm+0x40/0x70
[  448.941100]  ? __switch_to_asm+0x34/0x70
[  448.945189]  ? __switch_to_asm+0x40/0x70
[  448.949446]  ? __switch_to_asm+0x40/0x70
[  448.953508]  ? __switch_to_asm+0x34/0x70
[  448.957567]  ? __switch_to_asm+0x34/0x70
[  448.961634]  ? __switch_to_asm+0x40/0x70
[  448.965709]  ? __switch_to_asm+0x34/0x70
[  448.969778]  bpf_clone_redirect+0xb9/0x490
[  448.974023]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  448.979041]  ? __sched_text_start+0x8/0x8
[  448.983191]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  448.987968]  ? find_held_lock+0x36/0x1c0
[  448.992049]  ? lock_acquire+0x1ed/0x520
[  448.996024]  ? bpf_test_run+0x3ee/0x7a0
[  448.999994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.005528]  ? check_preemption_disabled+0x48/0x280
[  449.010550]  ? kasan_check_read+0x11/0x20
[  449.014693]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  449.019979]  ? rcu_softirq_qs+0x20/0x20
[  449.023952]  ? preempt_schedule+0x4d/0x60
[  449.028093]  ? ___preempt_schedule+0x16/0x18
[  449.032503]  ? bpf_test_run+0x271/0x7a0
[  449.036488]  ? netlink_diag_dump+0x2a0/0x2a0
[  449.040895]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.046466]  ? bpf_test_init.isra.10+0x70/0x100
[  449.051138]  ? bpf_prog_test_run_skb+0x762/0xd60
[  449.055904]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  449.060746]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  449.066281]  ? fput+0x130/0x1a0
[  449.069559]  ? __bpf_prog_get+0x9b/0x290
[  449.073616]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  449.078459]  ? bpf_prog_test_run+0x130/0x1a0
[  449.083003]  ? __x64_sys_bpf+0x3d8/0x520
[  449.087056]  ? bpf_prog_get+0x20/0x20
[  449.090865]  ? do_syscall_64+0x1b9/0x820
[  449.094922]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  449.100286]  ? syscall_return_slowpath+0x5e0/0x5e0
[  449.105214]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.110055]  ? trace_hardirqs_on_caller+0x310/0x310
[  449.115075]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  449.120099]  ? prepare_exit_to_usermode+0x291/0x3b0
[  449.125117]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.129958]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  449.135341] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  449.135380] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[  449.142268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  449.148488] rcu: 	(detected by 0, t=10590 jiffies, g=44325, q=2)
[  449.157823] Call Trace:
[  449.163951] rcu: All QSes seen, last rcu_preempt kthread activity 10570 (4294982067-4294971497), jiffies_till_next_fqs=1, root ->qsmask 0x0
[  449.166534]  <IRQ>
[  449.179186] syz-executor4   R  running task    20624 19389  10013 0x8010000c
[  449.181325]  dump_stack+0x244/0x39d
[  449.188483] Call Trace:
[  449.192095]  ? dump_stack_print_info.cold.1+0x20/0x20
[  449.194652]  <IRQ>
[  449.199831]  warn_alloc.cold.116+0xb7/0x1bd
[  449.201971]  sched_show_task.cold.84+0x2b6/0x30a
[  449.206268]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  449.210998]  ? can_nice.part.74+0x20/0x20
[  449.215820]  ? lock_downgrade+0x900/0x900
[  449.219950]  ? vprintk_default+0x28/0x30
[  449.224078]  ? trace_hardirqs_off+0xb8/0x310
[  449.228112]  ? vprintk_func+0x85/0x181
[  449.232496]  ? trace_hardirqs_off+0xb8/0x310
[  449.236369]  ? vprintk_func+0x85/0x181
[  449.240753]  ? noop_count+0x40/0x40
[  449.244618]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  449.248249]  __alloc_pages_slowpath+0x2651/0x2de0
[  449.252980]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  449.257827]  ? check_usage+0x1aa/0x790
[  449.262549]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.266432]  ? warn_alloc+0x120/0x120
[  449.271971]  print_other_cpu_stall.cold.66+0x7dd/0x8bb
[  449.275791]  ? warn_alloc+0x120/0x120
[  449.281081]  ? print_usage_bug+0xc0/0xc0
[  449.284857]  ? __bfs+0xb0/0x780
[  449.288904]  ? rcu_qs+0x110/0x110
[  449.292156]  ? print_bfs_bug+0x80/0x80
[  449.295597]  ? find_held_lock+0x36/0x1c0
[  449.299466]  ? warn_alloc+0x120/0x120
[  449.303529]  ? zap_class+0x640/0x640
[  449.307303]  ? print_usage_bug+0xc0/0xc0
[  449.310997]  ? print_usage_bug+0xc0/0xc0
[  449.315040]  ? mark_held_locks+0x130/0x130
[  449.319091]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  449.323305]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  449.328214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.333759]  ? should_fail+0x22d/0xd01
[  449.339290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.343173]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  449.348705]  ? do_trace_rcu_torture_read+0x10/0x10
[  449.354572]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  449.359492]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  449.364573]  ? __lock_acquire+0x62f/0x4c20
[  449.369845]  ? __lock_is_held+0xb5/0x140
[  449.374067]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  449.378106]  ? __rcu_read_lock+0x50/0x50
[  449.383191]  ? should_fail+0x22d/0xd01
[  449.387227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.391108]  ? mark_held_locks+0x130/0x130
[  449.396632]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.400844]  ? mark_held_locks+0x130/0x130
[  449.406360]  ? check_preemption_disabled+0x48/0x280
[  449.410570]  ? zap_class+0x640/0x640
[  449.415593]  rcu_check_callbacks+0xfd7/0x13f0
[  449.419318]  ? zap_class+0x640/0x640
[  449.423789]  ? rcutree_dead_cpu+0x10/0x10
[  449.427507]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  449.431628]  ? lock_downgrade+0x900/0x900
[  449.437487]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.441632]  ? lock_release+0x960/0xa00
[  449.447170]  ? check_preemption_disabled+0x48/0x280
[  449.451139]  ? zap_class+0x640/0x640
[  449.456134]  ? __lock_is_held+0xb5/0x140
[  449.459820]  ? zap_class+0x640/0x640
[  449.463860]  __alloc_pages_nodemask+0xad8/0xea0
[  449.467558]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.472218]  ? zap_class+0x640/0x640
[  449.477736]  ? pvclock_gtod_notify+0x2e3/0x3e0
[  449.481427]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  449.486006]  ? kvm_set_tsc_khz+0x540/0x540
[  449.491106]  ? find_held_lock+0x36/0x1c0
[  449.495317]  ? find_held_lock+0x36/0x1c0
[  449.499369]  ? ____cache_alloc_node+0x1c7/0x1e0
[  449.503405]  ? zap_class+0x640/0x640
[  449.508052]  ? lock_downgrade+0x900/0x900
[  449.511761]  ? timekeeping_advance+0x3cc/0xc00
[  449.515901]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.520475]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.525990]  cache_grow_begin+0xa5/0x8c0
[  449.531506]  ? check_preemption_disabled+0x48/0x280
[  449.535563]  ? do_raw_spin_unlock+0xa7/0x330
[  449.540565]  ? trace_hardirqs_off+0xb8/0x310
[  449.544956]  fallback_alloc+0x204/0x2e0
[  449.549356]  ? __lock_is_held+0xb5/0x140
[  449.553313]  ____cache_alloc_node+0x1c7/0x1e0
[  449.557381]  ? trace_hardirqs_on+0x310/0x310
[  449.561853]  kmem_cache_alloc_node+0xe3/0x730
[  449.566254]  ? check_preemption_disabled+0x48/0x280
[  449.570743]  ? mark_held_locks+0xc7/0x130
[  449.575745]  ? raise_softirq+0x199/0x420
[  449.579894]  __alloc_skb+0x119/0x770
[  449.583929]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  449.587631]  ? netdev_alloc_frag+0x1f0/0x1f0
[  449.592283]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.596669]  ? do_raw_spin_trylock+0x270/0x270
[  449.602206]  ? check_preemption_disabled+0x48/0x280
[  449.606770]  ? kmem_cache_alloc_trace+0x353/0x750
[  449.611799]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  449.616621]  ? queue_work_on+0x12c/0x1e0
[  449.622136]  ? hrtimer_run_queues+0x9a/0x400
[  449.626222]  ? switchdev_port_obj_del+0xdc/0x440
[  449.630608]  ? run_local_timers+0x19b/0x230
[  449.635359]  ? switchdev_trans_item_enqueue+0x260/0x260
[  449.639673]  ? timer_clear_idle+0x90/0x90
[  449.645047]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  449.649182]  ? debug_smp_processor_id+0x1c/0x20
[  449.654193]  __br_mdb_notify+0x4ff/0x15d0
[  449.658837]  ? irqtime_account_process_tick.isra.6+0x114/0x490
[  449.662995]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  449.668966]  ? account_process_tick+0x282/0x350
[  449.674051]  ? __br_mdb_add+0x7f0/0x7f0
[  449.678724]  update_process_times+0x2d/0x70
[  449.682715]  ? mark_held_locks+0x130/0x130
[  449.687019]  tick_sched_handle+0x9f/0x180
[  449.691235]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  449.695368]  tick_sched_timer+0x45/0x130
[  449.700456]  ? debug_object_assert_init+0x368/0x4b0
[  449.704497]  __hrtimer_run_queues+0x41c/0x10d0
[  449.709515]  ? debug_object_init_on_stack+0x20/0x20
[  449.714096]  ? tick_sched_do_timer+0x1a0/0x1a0
[  449.719111]  ? zap_class+0x640/0x640
[  449.723704]  ? hrtimer_start_range_ns+0xe00/0xe00
[  449.727400]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  449.732233]  ? pvclock_read_flags+0x160/0x160
[  449.737744]  br_mdb_notify+0x310/0x410
[  449.742219]  ? trace_hardirqs_on+0x310/0x310
[  449.746085]  ? br_mdb_dump+0x27b0/0x27b0
[  449.750478]  ? zap_class+0x640/0x640
[  449.754534]  br_multicast_del_pg+0x3df/0x790
[  449.758219]  ? kvm_clock_read+0x18/0x30
[  449.762615]  ? br_mdb_ip_get+0x940/0x940
[  449.766576]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  449.770619]  ? rwlock_bug.part.2+0x90/0x90
[  449.775617]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  449.779862]  ? __lock_is_held+0xb5/0x140
[  449.785209]  ? do_timer+0x50/0x50
[  449.789255]  br_multicast_port_group_expired+0x189/0x1e0
[  449.792684]  ? rwlock_bug.part.2+0x90/0x90
[  449.798117]  call_timer_fn+0x272/0x920
[  449.802347]  ? trace_hardirqs_on+0x310/0x310
[  449.806237]  ? br_multicast_del_pg+0x790/0x790
[  449.810621]  ? rcu_softirq_qs+0x20/0x20
[  449.815188]  ? process_timeout+0x40/0x40
[  449.819153]  hrtimer_interrupt+0x313/0x780
[  449.823223]  ? mark_held_locks+0xc7/0x130
[  449.827451]  smp_apic_timer_interrupt+0x1a1/0x760
[  449.831565]  ? _raw_spin_unlock_irq+0x27/0x80
[  449.836390]  ? smp_call_function_single_interrupt+0x650/0x650
[  449.840864]  ? _raw_spin_unlock_irq+0x27/0x80
[  449.846727]  ? interrupt_entry+0xb5/0xc0
[  449.851233]  ? br_multicast_del_pg+0x790/0x790
[  449.855315]  ? trace_hardirqs_off_caller+0xbb/0x310
[  449.859886]  ? lockdep_hardirqs_on+0x296/0x5b0
[  449.864909]  ? ____cache_alloc_node+0x1c7/0x1e0
[  449.869469]  ? trace_hardirqs_on+0xbd/0x310
[  449.874115]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.878411]  ? kasan_check_read+0x11/0x20
[  449.883243]  ? trace_hardirqs_on_caller+0x310/0x310
[  449.887370]  ? __run_timers+0x7da/0xc70
[  449.892384]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  449.896334]  ? trace_hardirqs_off_caller+0x310/0x310
[  449.901168]  apic_timer_interrupt+0xf/0x20
[  449.906250]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  449.910467] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  449.914686]  ? br_multicast_del_pg+0x790/0x790
[  449.920026] Code: 3f 7e 0f 85 32 ff ff ff e8 a5 10 3e ff e9 28 ff ff ff e8 4c 46 c3 ff 48 83 3d e4 8e 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 5a bd
[  449.924588]  __run_timers+0x7e5/0xc70
[  449.943467] RSP: 0000:ffff8881dae073d8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  449.947258]  ? timer_fixup_init+0x70/0x70
[  449.954933] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff11031d04199
[  449.959105]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  449.966353] RDX: 0000000000000000 RSI: ffff88818e820cd0 RDI: 0000000000000286
[  449.971371]  ? zap_class+0x640/0x640
[  449.978620] RBP: ffff8881dae07448 R08: ffff88818e820cc8 R09: 0000000000000002
[  449.982319]  ? print_usage_bug+0xc0/0xc0
[  449.989576] R10: 0000000000000000 R11: ffff88818e820400 R12: ffff8881d9a1c0c0
[  449.993642]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  450.000892] R13: ffff8881d9a1c0c0 R14: 0000000000000000 R15: 0000000000000286
[  450.006069]  ? find_held_lock+0x36/0x1c0
[  450.013325]  ? apic_timer_interrupt+0xa/0x20
[  450.017373]  ? zap_class+0x640/0x640
[  450.021785]  ? lockdep_hardirqs_on+0x296/0x5b0
[  450.025471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.030045]  __alloc_skb+0x119/0x770
[  450.035563]  ? check_preemption_disabled+0x48/0x280
[  450.039257]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  450.044266]  ? __lock_is_held+0xb5/0x140
[  450.049608]  ? netdev_alloc_frag+0x1f0/0x1f0
[  450.053657]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.058051]  ? vprintk_default+0x28/0x30
[  450.063568]  ? check_preemption_disabled+0x48/0x280
[  450.067608]  ? vprintk_func+0x85/0x181
[  450.072631]  run_timer_softirq+0x52/0xb0
[  450.076498]  ? printk+0xa7/0xcf
[  450.080543]  ? rcu_read_lock_sched_held+0x14f/0x180
[  450.083801]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  450.089817]  __do_softirq+0x308/0xb7e
[  450.094563]  new_skb+0x26/0x1c0
[  450.098341]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  450.101599]  aoecmd_cfg+0x279/0x7f0
[  450.106078]  ? lock_downgrade+0x900/0x900
[  450.109697]  ? find_held_lock+0x36/0x1c0
[  450.113842]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  450.117905]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  450.122993]  ? pvclock_read_flags+0x160/0x160
[  450.127295]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.131788]  ? lapic_next_event+0x5a/0x90
[  450.137354]  ? __lock_is_held+0xb5/0x140
[  450.141493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.145537]  discover_timer+0x50/0x60
[  450.151057]  ? kvm_clock_read+0x18/0x30
[  450.154865]  call_timer_fn+0x272/0x920
[  450.158835]  ? kvm_sched_clock_read+0x9/0x20
[  450.162703]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  450.167090]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.171908]  ? process_timeout+0x40/0x40
[  450.177426]  ? check_preemption_disabled+0x48/0x280
[  450.181472]  ? __run_timers+0x7da/0xc70
[  450.186498]  irq_exit+0x17f/0x1c0
[  450.190464]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.193900]  smp_apic_timer_interrupt+0x1cb/0x760
[  450.198374]  ? _raw_spin_unlock_irq+0x27/0x80
[  450.203240]  ? smp_reschedule_interrupt+0x109/0x650
[  450.207729]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  450.212727]  ? smp_call_function_single_interrupt+0x650/0x650
[  450.217547]  ? lockdep_hardirqs_on+0x296/0x5b0
[  450.223454]  ? interrupt_entry+0xb5/0xc0
[  450.228021]  ? trace_hardirqs_on+0xbd/0x310
[  450.232094]  ? trace_hardirqs_off_caller+0xbb/0x310
[  450.236401]  ? kasan_check_read+0x11/0x20
[  450.241397]  ? trace_hardirqs_off_caller+0xbb/0x310
[  450.245519]  ? __run_timers+0x7da/0xc70
[  450.250514]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.254510]  ? trace_hardirqs_off_caller+0x310/0x310
[  450.259330]  ? trace_hardirqs_on_caller+0x310/0x310
[  450.264463]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  450.269450]  ? trace_hardirqs_on_caller+0x310/0x310
[  450.274286]  __run_timers+0x7e5/0xc70
[  450.279322]  ? task_prio+0x50/0x50
[  450.283104]  ? timer_fixup_init+0x70/0x70
[  450.286620]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.290748]  ? kasan_check_read+0x11/0x20
[  450.296285]  ? check_preemption_disabled+0x48/0x280
[  450.300412]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  450.305427]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.310682]  ? rcu_softirq_qs+0x20/0x20
[  450.315518]  apic_timer_interrupt+0xf/0x20
[  450.319544]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.323752]  </IRQ>
[  450.329292]  ? check_preemption_disabled+0x48/0x280
[  450.331519] RIP: 0010:lock_acquire+0x268/0x520
[  450.336512]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  450.341070] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  450.345801]  ? retint_kernel+0x2d/0x2d
[  450.364699] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  450.368596]  ? trace_hardirqs_on_caller+0xc0/0x310
[  450.376277] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  450.381205]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  450.388459] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  450.393208]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  450.400460] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  450.405903]  ? zap_class+0x640/0x640
[  450.413156] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  450.416872]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.424139] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  450.429666]  ? check_preemption_disabled+0x48/0x280
[  450.436970]  ? lruvec_lru_size+0x450/0x450
[  450.441965]  ? __lock_is_held+0xb5/0x140
[  450.446187]  ? kasan_check_read+0x11/0x20
[  450.450233]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.454368]  ? lock_release+0xa00/0xa00
[  450.459889]  ? check_preemption_disabled+0x48/0x280
[  450.463851]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  450.468875]  run_timer_softirq+0x52/0xb0
[  450.473806]  down_read_trylock+0xda/0x140
[  450.477843]  ? rcu_read_lock_sched_held+0x14f/0x180
[  450.481972]  ? shrink_slab+0x207/0x8c0
[  450.486972]  __do_softirq+0x308/0xb7e
[  450.490845]  ? downgrade_write+0x270/0x270
[  450.494648]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  450.498873]  shrink_slab+0x207/0x8c0
[  450.503350]  ? lock_downgrade+0x900/0x900
[  450.507049]  ? shrink_active_list+0x1f00/0x1f00
[  450.511187]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  450.515842]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  450.520924]  ? pvclock_read_flags+0x160/0x160
[  450.526575]  ? __lock_acquire+0x62f/0x4c20
[  450.531049]  ? lapic_next_event+0x5a/0x90
[  450.535266]  ? percpu_ref_get_many+0x240/0x240
[  450.539395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.543974]  ? print_usage_bug+0xc0/0xc0
[  450.549479]  ? kvm_clock_read+0x18/0x30
[  450.553523]  shrink_node+0x431/0x16b0
[  450.557506]  ? kvm_sched_clock_read+0x9/0x20
[  450.561285]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  450.565686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.570963]  ? shrink_node_memcg+0x18f0/0x18f0
[  450.576503]  ? check_preemption_disabled+0x48/0x280
[  450.581061]  ? kvm_clock_read+0x18/0x30
[  450.586059]  irq_exit+0x17f/0x1c0
[  450.590008]  ? ktime_get+0x2c1/0x400
[  450.593488]  smp_apic_timer_interrupt+0x1cb/0x760
[  450.597190]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  450.602019]  ? smp_reschedule_interrupt+0x109/0x650
[  450.606497]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  450.611500]  ? smp_call_function_single_interrupt+0x650/0x650
[  450.617021]  ? __cpuset_node_allowed+0x19b/0x660
[  450.622899]  ? interrupt_entry+0xb5/0xc0
[  450.627639]  ? mark_held_locks+0x130/0x130
[  450.631686]  ? trace_hardirqs_off_caller+0xbb/0x310
[  450.635921]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  450.640924]  ? trace_hardirqs_off_caller+0xbb/0x310
[  450.646622]  ? zap_class+0x640/0x640
[  450.651624]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.655324]  do_try_to_free_pages+0x3e7/0x1290
[  450.660156]  ? trace_hardirqs_on_caller+0x310/0x310
[  450.664730]  ? zap_class+0x640/0x640
[  450.669730]  ? trace_hardirqs_on_caller+0x310/0x310
[  450.673437]  ? shrink_node+0x16b0/0x16b0
[  450.678471]  ? task_prio+0x50/0x50
[  450.682521]  ? __lock_is_held+0xb5/0x140
[  450.686046]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.690099]  try_to_free_pages+0x4d0/0xb90
[  450.695614]  ? check_preemption_disabled+0x48/0x280
[  450.699832]  ? do_try_to_free_pages+0x1290/0x1290
[  450.704832]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  450.709664]  ? lock_acquire+0x1ed/0x520
[  450.714486]  apic_timer_interrupt+0xf/0x20
[  450.718450]  ? set_page_refcounted+0x280/0x280
[  450.722662]  </IRQ>
[  450.727253]  ? lock_release+0xa00/0xa00
[  450.729476] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  450.733430]  ? _raw_spin_unlock_irq+0x60/0x80
[  450.738352] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  450.742833]  ? psi_memstall_enter+0x240/0x2b0
[  450.761716] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  450.766217]  ? psi_memstall_tick+0x230/0x230
[  450.773921] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  450.778340]  __alloc_pages_slowpath+0xa48/0x2de0
[  450.785584] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  450.790365]  ? warn_alloc+0x120/0x120
[  450.797597] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  450.801390]  ? mark_held_locks+0x130/0x130
[  450.808642] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  450.812868]  ? find_get_entry+0xaae/0x1120
[  450.820125] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  450.824349]  ? filemap_map_pages+0x1a20/0x1a20
[  450.831627]  skb_clone+0x1bb/0x500
[  450.836173]  ? zap_class+0x640/0x640
[  450.839694]  ? skb_split+0x11e0/0x11e0
[  450.843393]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  450.847269]  ? preempt_notifier_register+0x200/0x200
[  450.852783]  ? check_preemption_disabled+0x48/0x280
[  450.857864]  ? __switch_to_asm+0x34/0x70
[  450.862860]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  450.866898]  ? __switch_to_asm+0x34/0x70
[  450.872417]  ? should_fail+0x22d/0xd01
[  450.876453]  ? __switch_to_asm+0x40/0x70
[  450.880321]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  450.884359]  ? __switch_to_asm+0x34/0x70
[  450.889447]  ? zap_class+0x640/0x640
[  450.893519]  ? __switch_to_asm+0x40/0x70
[  450.897232]  ? __lock_is_held+0xb5/0x140
[  450.901268]  ? __switch_to_asm+0x40/0x70
[  450.905317]  ? mark_held_locks+0x130/0x130
[  450.909354]  ? __switch_to_asm+0x34/0x70
[  450.913643]  ? lock_release+0xa00/0xa00
[  450.917685]  ? __switch_to_asm+0x34/0x70
[  450.921641]  ? perf_trace_sched_process_exec+0x860/0x860
[  450.925685]  ? __switch_to_asm+0x40/0x70
[  450.931116]  ? xa_load+0x2ba/0x460
[  450.935152]  ? __switch_to_asm+0x34/0x70
[  450.938677]  ? lock_downgrade+0x900/0x900
[  450.942717]  bpf_clone_redirect+0xb9/0x490
[  450.946855]  ? __might_sleep+0x95/0x190
[  450.951275]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  450.955230]  __alloc_pages_nodemask+0xad8/0xea0
[  450.960225]  ? __sched_text_start+0x8/0x8
[  450.964873]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  450.969008]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  450.974001]  ? __page_cache_alloc+0x191/0x5c0
[  450.978758]  ? find_held_lock+0x36/0x1c0
[  450.983228]  ? xa_load+0x2e1/0x460
[  450.987270]  ? lock_acquire+0x1ed/0x520
[  450.990786]  ? xa_clear_mark+0x40/0x40
[  450.994766]  ? bpf_test_run+0x3ee/0x7a0
[  450.998651]  ? zap_class+0x640/0x640
[  451.002607]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.006302]  ? zap_class+0x640/0x640
[  451.011833]  ? check_preemption_disabled+0x48/0x280
[  451.015528]  ? zap_class+0x640/0x640
[  451.020531]  ? kasan_check_read+0x11/0x20
[  451.024224]  ? __do_page_cache_readahead+0x663/0x810
[  451.028365]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.033455]  ? find_held_lock+0x36/0x1c0
[  451.038713]  ? rcu_softirq_qs+0x20/0x20
[  451.042773]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  451.046761]  ? preempt_schedule+0x4d/0x60
[  451.052289]  alloc_pages_current+0x173/0x350
[  451.056411]  ? ___preempt_schedule+0x16/0x18
[  451.060805]  __page_cache_alloc+0x38c/0x5c0
[  451.065213]  ? bpf_test_run+0x271/0x7a0
[  451.069526]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.073488]  ? netlink_diag_dump+0x2a0/0x2a0
[  451.078389]  ? kasan_check_read+0x11/0x20
[  451.082929]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.087076]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.092608]  ? bpf_test_init.isra.10+0x70/0x100
[  451.097882]  ? generic_perform_write+0x6a0/0x6a0
[  451.102571]  ? bpf_prog_test_run_skb+0x762/0xd60
[  451.107321]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.112068]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  451.117581]  ? check_preemption_disabled+0x48/0x280
[  451.122412]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  451.127407]  filemap_fault+0x1595/0x25f0
[  451.132919]  ? fput+0x130/0x1a0
[  451.136972]  ? __lock_page_or_retry+0xa00/0xa00
[  451.140243]  ? __bpf_prog_get+0x9b/0x290
[  451.144884]  ? mark_held_locks+0x130/0x130
[  451.148924]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  451.153141]  ? filemap_map_pages+0xd6b/0x1a20
[  451.158011]  ? bpf_prog_test_run+0x130/0x1a0
[  451.162483]  ? lock_downgrade+0x900/0x900
[  451.166870]  ? __x64_sys_bpf+0x3d8/0x520
[  451.170998]  ? check_preemption_disabled+0x48/0x280
[  451.175052]  ? bpf_prog_get+0x20/0x20
[  451.180047]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.183842]  ? do_syscall_64+0x1b9/0x820
[  451.188757]  ? kasan_check_read+0x11/0x20
[  451.192795]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  451.196928]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.202270]  ? syscall_return_slowpath+0x5e0/0x5e0
[  451.207522]  ? rcu_softirq_qs+0x20/0x20
[  451.212439]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.216392]  ? filemap_map_pages+0xd92/0x1a20
[  451.221207]  ? trace_hardirqs_on_caller+0x310/0x310
[  451.225735]  ? find_get_entries_tag+0x1400/0x1400
[  451.230722]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  451.235539]  ? debug_object_destroy+0x2b0/0x2b0
[  451.240538]  ? prepare_exit_to_usermode+0x291/0x3b0
[  451.245249]  ? lock_pi_update_atomic+0x150/0x150
[  451.250241]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.254985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.259808]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  451.265326]  ? lock_acquire+0x1ed/0x520
[  451.270679] rcu: rcu_preempt kthread starved for 10570 jiffies! g44325 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[  451.274637]  ? ext4_filemap_fault+0x7a/0xad
[  451.285105] rcu: RCU grace-period kthread stack dump:
[  451.289419]  ? lock_release+0xa00/0xa00
[  451.294604] rcu_preempt     R  running task    22696    10      2 0x80000000
[  451.298573]  ? perf_trace_sched_process_exec+0x860/0x860
[  451.305730] Call Trace:
[  451.311175]  ? print_usage_bug+0xc0/0xc0
[  451.313750]  __schedule+0x8cf/0x21d0
[  451.317790]  ? print_usage_bug+0xc0/0xc0
[  451.321523]  ? __sched_text_start+0x8/0x8
[  451.325567]  ? down_read+0x8d/0x120
[  451.329693]  ? add_timer_on+0xa20/0xa20
[  451.333323]  ? ext4_filemap_fault+0x7a/0xad
[  451.337274]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  451.341582]  ? __down_interruptible+0x700/0x700
[  451.346679]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  451.351329]  ext4_filemap_fault+0x82/0xad
[  451.356410]  ? trace_hardirqs_on+0xbd/0x310
[  451.360539]  __do_fault+0x100/0x6b0
[  451.364841]  ? kasan_check_read+0x11/0x20
[  451.368444]  ? find_held_lock+0x36/0x1c0
[  451.368459]  ? pmd_devmap_trans_unstable+0x220/0x220
[  451.372590]  ? prepare_to_swait_event+0x25a/0x800
[  451.376628]  ? mark_held_locks+0x130/0x130
[  451.381706]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.386528]  ? mark_held_locks+0x130/0x130
[  451.390756]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  451.395881]  ? kasan_check_read+0x11/0x20
[  451.400099]  schedule+0xfe/0x460
[  451.405184]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  451.409308]  ? __schedule+0x21d0/0x21d0
[  451.412653]  __handle_mm_fault+0x3ea0/0x5be0
[  451.418173]  ? prepare_to_swait_event+0x25a/0x800
[  451.422123]  ? perf_trace_lock+0x7a0/0x7a0
[  451.426514]  ? __init_swait_queue_head+0x150/0x150
[  451.431336]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  451.435543]  ? __lockdep_init_map+0x105/0x590
[  451.440483]  ? __switch_to_asm+0x34/0x70
[  451.445316]  ? lockdep_init_map+0x9/0x10
[  451.449805]  ? __switch_to_asm+0x34/0x70
[  451.453891]  schedule_timeout+0x140/0x260
[  451.457961]  ? zap_class+0x640/0x640
[  451.461992]  ? usleep_range+0x1a0/0x1a0
[  451.466129]  ? zap_class+0x640/0x640
[  451.469819]  ? __next_timer_interrupt+0x1a0/0x1a0
[  451.473782]  ? __x64_sys_futex+0x53e/0x6a0
[  451.477498]  rcu_gp_fqs_loop+0x762/0xa80
[  451.482327]  ? find_held_lock+0x36/0x1c0
[  451.486561]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  451.490632]  ? handle_mm_fault+0x42a/0xc70
[  451.494670]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.499406]  ? lock_downgrade+0x900/0x900
[  451.503633]  ? perf_trace_sched_process_exec+0x860/0x860
[  451.508715]  ? check_preemption_disabled+0x48/0x280
[  451.512839]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.518274]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  451.523270]  ? rcu_gp_init+0x90b/0x1260
[  451.528781]  ? kasan_check_read+0x11/0x20
[  451.533703]  ? __switch_to_asm+0x40/0x70
[  451.537690]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  451.541834]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  451.545870]  ? rcu_softirq_qs+0x20/0x20
[  451.551124]  ? __switch_to_asm+0x40/0x70
[  451.555859]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.559810]  ? zap_class+0x640/0x640
[  451.563888]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.568996]  ? find_held_lock+0x36/0x1c0
[  451.572698]  ? sync_mm_rss+0x9a/0x1c0
[  451.578238]  ? zap_class+0x640/0x640
[  451.582291]  handle_mm_fault+0x54f/0xc70
[  451.586078]  ? __lock_is_held+0xb5/0x140
[  451.589763]  ? __handle_mm_fault+0x5be0/0x5be0
[  451.593826]  ? __lock_is_held+0xb5/0x140
[  451.597869]  ? find_vma+0x34/0x190
[  451.602428]  ? zap_class+0x640/0x640
[  451.606474]  __do_page_fault+0x5e8/0xe60
[  451.609999]  ? rcu_accelerate_cbs+0x10a/0xae0
[  451.613689]  ? trace_hardirqs_off+0xb8/0x310
[  451.617736]  ? find_held_lock+0x36/0x1c0
[  451.622210]  do_page_fault+0xf2/0x7e0
[  451.626599]  ? rcu_gp_kthread+0x8cf/0xc70
[  451.630652]  ? vmalloc_sync_all+0x30/0x30
[  451.634476]  ? _raw_spin_unlock_irq+0x27/0x80
[  451.638642]  ? error_entry+0x70/0xd0
[  451.642790]  ? _raw_spin_unlock_irq+0x27/0x80
[  451.647268]  ? trace_hardirqs_off_caller+0xbb/0x310
[  451.650964]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  451.655438]  ? trace_hardirqs_on_caller+0xc0/0x310
[  451.660473]  ? trace_hardirqs_on+0xbd/0x310
[  451.665051]  ? syscall_return_slowpath+0x5e0/0x5e0
[  451.669960]  ? kasan_check_read+0x11/0x20
[  451.674261]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.679180]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.683322]  ? trace_hardirqs_on_caller+0x310/0x310
[  451.688147]  ? perf_trace_sched_process_exec+0x860/0x860
[  451.693268]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  451.698277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  451.703756]  ? prepare_exit_to_usermode+0x291/0x3b0
[  451.709199]  rcu_gp_kthread+0x341/0xc70
[  451.714715]  ? page_fault+0x8/0x30
[  451.719734]  ? rcu_gp_init+0x1260/0x1260
[  451.723688]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  451.727227]  ? mark_held_locks+0x130/0x130
[  451.731269]  ? page_fault+0x8/0x30
[  451.736096]  ? __schedule+0x168a/0x21d0
[  451.740313]  page_fault+0x1e/0x30
[  451.743834]  ? _raw_spin_unlock_irq+0x27/0x80
[  451.747790] RIP: 0033:0x45ddf3
[  451.751229]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  451.755727] Code: Bad RIP value.
[  451.758891]  ? trace_hardirqs_on+0xbd/0x310
[  451.763442] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  451.766805]  ? kasan_check_read+0x11/0x20
[  451.771103] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  451.776455]  ? __schedule+0x168a/0x21d0
[  451.780592] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  451.787863]  ? trace_hardirqs_off_caller+0x310/0x310
[  451.791825] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  451.799082]  ? lock_pin_lock+0x350/0x350
[  451.804169] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  451.811448]  ? _raw_spin_unlock_irq+0x60/0x80
[  451.815476] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  451.822752]  ? __schedule+0x168a/0x21d0
[  451.827271] warn_alloc_show_mem: 1 callbacks suppressed
[  451.827276] Mem-Info:
[  451.834481]  ? __switch_to_asm+0x40/0x70
[  451.838503] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  451.838503]  active_file:17 inactive_file:17 isolated_file:0
[  451.838503]  unevictable:0 dirty:4 writeback:0 unstable:0
[  451.838503]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  451.838503]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  451.838503]  free:13550 free_pcp:124 free_cma:0
[  451.843831]  ? __switch_to_asm+0x40/0x70
[  451.846234] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  451.850291]  ? show_schedstat+0x551/0xf30
[  451.883335] 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
[  451.887391]  ? __sched_text_start+0x8/0x8
[  451.915135] lowmem_reserve[]: 0 2818 6321 6321
[  451.919286]  ? find_held_lock+0x36/0x1c0
[  451.945364] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  451.949510]  ? __kthread_parkme+0xce/0x1a0
[  451.954057] lowmem_reserve[]: 0 0 3503 3503
[  451.958103]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  451.985402] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  451.989624]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  451.993915] lowmem_reserve[]: 0 0 0 0
[  451.999007]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  452.027962] 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
[  452.033069]  ? trace_hardirqs_on+0xbd/0x310
[  452.036842] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  452.041418]  ? kasan_check_read+0x11/0x20
[  452.054912] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  452.059230]  ? __kthread_parkme+0xce/0x1a0
[  452.073946] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  452.078080]  ? trace_hardirqs_off_caller+0x310/0x310
[  452.092797] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  452.097034]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  452.105838] 1360 total pagecache pages
[  452.110946]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.119534] 0 pages in swap cache
[  452.124613]  ? __kthread_parkme+0xfb/0x1a0
[  452.128525] Swap cache stats: add 0, delete 0, find 0/0
[  452.134045]  ? rcu_gp_init+0x1260/0x1260
[  452.137484] Free swap  = 0kB
[  452.141748]  kthread+0x35a/0x440
[  452.147083] Total swap = 0kB
[  452.151144]  ? kthread_stop+0x900/0x900
[  452.154145] 1965979 pages RAM
[  452.157501]  ret_from_fork+0x3a/0x50
[  452.160494] 0 pages HighMem/MovableOnly
[  452.164649] aoe: skb alloc failure
[  452.167545] 342854 pages reserved
[  452.167553] 0 pages cma reserved
[  452.171311] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  452.176071] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  452.178732] syz-executor4 cpuset=syz4 mems_allowed=0
[  452.182177] syz-fuzzer cpuset=/ mems_allowed=0
[  452.185540] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  452.223176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  452.232531] Call Trace:
[  452.235103]  <IRQ>
[  452.237252]  dump_stack+0x244/0x39d
[  452.240919]  ? dump_stack_print_info.cold.1+0x20/0x20
[  452.246170]  warn_alloc.cold.116+0xb7/0x1bd
[  452.250515]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  452.255402]  ? lock_downgrade+0x900/0x900
[  452.259567]  ? trace_hardirqs_off+0xb8/0x310
[  452.263980]  ? trace_hardirqs_off+0xb8/0x310
[  452.268396]  __alloc_pages_slowpath+0x2651/0x2de0
[  452.273266]  ? warn_alloc+0x120/0x120
[  452.277073]  ? warn_alloc+0x120/0x120
[  452.280893]  ? warn_alloc+0x120/0x120
[  452.284696]  ? print_usage_bug+0xc0/0xc0
[  452.288762]  ? print_usage_bug+0xc0/0xc0
[  452.292826]  ? ktime_get+0x2c1/0x400
[  452.296548]  ? check_preemption_disabled+0x48/0x280
[  452.301564]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  452.306062]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.311602]  ? should_fail+0x22d/0xd01
[  452.315492]  ? kasan_check_read+0x11/0x20
[  452.319643]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.324748]  ? __lock_acquire+0x62f/0x4c20
[  452.329015]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  452.334113]  ? should_fail+0x22d/0xd01
[  452.338016]  ? print_usage_bug+0xc0/0xc0
[  452.342181]  ? mark_held_locks+0x130/0x130
[  452.346456]  ? mark_held_locks+0x130/0x130
[  452.350693]  ? check_preemption_disabled+0x48/0x280
[  452.355719]  ? zap_class+0x640/0x640
[  452.359443]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  452.364202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.369743]  ? check_preemption_disabled+0x48/0x280
[  452.374768]  ? __lock_is_held+0xb5/0x140
[  452.378836]  __alloc_pages_nodemask+0xad8/0xea0
[  452.383504]  ? zap_class+0x640/0x640
[  452.387223]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  452.392251]  ? find_held_lock+0x36/0x1c0
[  452.396321]  ? ____cache_alloc_node+0x1c7/0x1e0
[  452.400994]  ? lock_downgrade+0x900/0x900
[  452.405151]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.410719]  cache_grow_begin+0xa5/0x8c0
[  452.414798]  ? do_raw_spin_unlock+0xa7/0x330
[  452.419215]  fallback_alloc+0x204/0x2e0
[  452.423203]  ____cache_alloc_node+0x1c7/0x1e0
[  452.427703]  kmem_cache_alloc_node+0xe3/0x730
[  452.432202]  ? lockdep_hardirqs_on+0x296/0x5b0
[  452.436788]  __alloc_skb+0x119/0x770
[  452.440496]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  452.445877]  ? netdev_alloc_frag+0x1f0/0x1f0
[  452.450330]  ? vprintk_default+0x28/0x30
[  452.454404]  ? vprintk_func+0x85/0x181
[  452.458315]  ? printk+0xa7/0xcf
[  452.461590]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  452.466353]  new_skb+0x26/0x1c0
[  452.469660]  aoecmd_cfg+0x279/0x7f0
[  452.473306]  ? find_held_lock+0x36/0x1c0
[  452.477365]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  452.481688]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.487245]  ? __lock_is_held+0xb5/0x140
[  452.491310]  discover_timer+0x50/0x60
[  452.495139]  call_timer_fn+0x272/0x920
[  452.499046]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  452.503880]  ? process_timeout+0x40/0x40
[  452.507975]  ? __run_timers+0x7da/0xc70
[  452.511946]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.516433]  ? _raw_spin_unlock_irq+0x27/0x80
[  452.520930]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  452.525782]  ? lockdep_hardirqs_on+0x296/0x5b0
[  452.530375]  ? trace_hardirqs_on+0xbd/0x310
[  452.534718]  ? kasan_check_read+0x11/0x20
[  452.538916]  ? __run_timers+0x7da/0xc70
[  452.542891]  ? trace_hardirqs_off_caller+0x310/0x310
[  452.548002]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  452.552849]  __run_timers+0x7e5/0xc70
[  452.556681]  ? timer_fixup_init+0x70/0x70
[  452.560841]  ? kasan_check_read+0x11/0x20
[  452.564982]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.570255]  ? rcu_softirq_qs+0x20/0x20
[  452.574232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.579767]  ? check_preemption_disabled+0x48/0x280
[  452.584804]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  452.589606]  ? retint_kernel+0x2d/0x2d
[  452.593495]  ? trace_hardirqs_on_caller+0xc0/0x310
[  452.598422]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  452.603189]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  452.608641]  ? zap_class+0x640/0x640
[  452.612358]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.617893]  ? check_preemption_disabled+0x48/0x280
[  452.622917]  ? __lock_is_held+0xb5/0x140
[  452.626978]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.632513]  ? check_preemption_disabled+0x48/0x280
[  452.637556]  run_timer_softirq+0x52/0xb0
[  452.641615]  ? rcu_read_lock_sched_held+0x14f/0x180
[  452.646626]  __do_softirq+0x308/0xb7e
[  452.650452]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  452.654943]  ? lock_downgrade+0x900/0x900
[  452.659092]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  452.664208]  ? pvclock_read_flags+0x160/0x160
[  452.668731]  ? lapic_next_event+0x5a/0x90
[  452.672883]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.678444]  ? kvm_clock_read+0x18/0x30
[  452.682416]  ? kvm_sched_clock_read+0x9/0x20
[  452.686828]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.692380]  ? check_preemption_disabled+0x48/0x280
[  452.697406]  irq_exit+0x17f/0x1c0
[  452.700859]  smp_apic_timer_interrupt+0x1cb/0x760
[  452.705696]  ? smp_reschedule_interrupt+0x109/0x650
[  452.710743]  ? smp_call_function_single_interrupt+0x650/0x650
[  452.716625]  ? interrupt_entry+0xb5/0xc0
[  452.720720]  ? trace_hardirqs_off_caller+0xbb/0x310
[  452.725779]  ? trace_hardirqs_off_caller+0xbb/0x310
[  452.730789]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  452.735628]  ? trace_hardirqs_on_caller+0x310/0x310
[  452.740660]  ? trace_hardirqs_on_caller+0x310/0x310
[  452.745701]  ? task_prio+0x50/0x50
[  452.749241]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.754772]  ? check_preemption_disabled+0x48/0x280
[  452.759788]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  452.764630]  apic_timer_interrupt+0xf/0x20
[  452.768867]  </IRQ>
[  452.771099] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  452.776025] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  452.794921] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  452.802623] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  452.809885] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  452.817143] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  452.824423] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  452.831702] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  452.839002]  skb_clone+0x1bb/0x500
[  452.842554]  ? skb_split+0x11e0/0x11e0
[  452.846473]  ? preempt_notifier_register+0x200/0x200
[  452.851586]  ? __switch_to_asm+0x34/0x70
[  452.855641]  ? __switch_to_asm+0x34/0x70
[  452.859692]  ? __switch_to_asm+0x40/0x70
[  452.863743]  ? __switch_to_asm+0x34/0x70
[  452.867796]  ? __switch_to_asm+0x40/0x70
[  452.871882]  ? __switch_to_asm+0x40/0x70
[  452.875947]  ? __switch_to_asm+0x34/0x70
[  452.880000]  ? __switch_to_asm+0x34/0x70
[  452.884053]  ? __switch_to_asm+0x40/0x70
[  452.888104]  ? __switch_to_asm+0x34/0x70
[  452.892168]  bpf_clone_redirect+0xb9/0x490
[  452.896421]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  452.901444]  ? __sched_text_start+0x8/0x8
[  452.905586]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  452.910375]  ? find_held_lock+0x36/0x1c0
[  452.914475]  ? lock_acquire+0x1ed/0x520
[  452.918451]  ? bpf_test_run+0x3ee/0x7a0
[  452.922442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  452.927974]  ? check_preemption_disabled+0x48/0x280
[  452.932990]  ? kasan_check_read+0x11/0x20
[  452.937170]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  452.942444]  ? rcu_softirq_qs+0x20/0x20
[  452.946413]  ? preempt_schedule+0x4d/0x60
[  452.950753]  ? ___preempt_schedule+0x16/0x18
[  452.955170]  ? bpf_test_run+0x271/0x7a0
[  452.959173]  ? netlink_diag_dump+0x2a0/0x2a0
[  452.963579]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  452.969126]  ? bpf_test_init.isra.10+0x70/0x100
[  452.973815]  ? bpf_prog_test_run_skb+0x762/0xd60
[  452.978578]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  452.983430]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  452.988977]  ? fput+0x130/0x1a0
[  452.992258]  ? __bpf_prog_get+0x9b/0x290
[  452.996320]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  453.001182]  ? bpf_prog_test_run+0x130/0x1a0
[  453.005603]  ? __x64_sys_bpf+0x3d8/0x520
[  453.009670]  ? bpf_prog_get+0x20/0x20
[  453.013507]  ? do_syscall_64+0x1b9/0x820
[  453.017577]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  453.022943]  ? syscall_return_slowpath+0x5e0/0x5e0
[  453.027870]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.032712]  ? trace_hardirqs_on_caller+0x310/0x310
[  453.037733]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  453.042753]  ? prepare_exit_to_usermode+0x291/0x3b0
[  453.047792]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.052640]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  453.058021] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  453.058023] Mem-Info:
[  453.058053] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  453.058053]  active_file:17 inactive_file:17 isolated_file:0
[  453.058053]  unevictable:0 dirty:4 writeback:0 unstable:0
[  453.058053]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  453.058053]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  453.058053]  free:13550 free_pcp:124 free_cma:0
[  453.064961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  453.067401] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  453.100917] Call Trace:
[  453.110259] 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
[  453.138001]  <IRQ>
[  453.140579] lowmem_reserve[]: 0 2818 6321 6321
[  453.166777]  dump_stack+0x244/0x39d
[  453.168897] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB
[  453.173486]  ? dump_stack_print_info.cold.1+0x20/0x20
[  453.177098] lowmem_reserve[]: 0 0 3503 3503
[  453.204599]  warn_alloc.cold.116+0xb7/0x1bd
[  453.209748] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB
[  453.214054]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  453.218346] lowmem_reserve[]: 0 0 0 0
[  453.247391]  ? lock_downgrade+0x900/0x900
[  453.252203] 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
[  453.255995]  ? trace_hardirqs_off+0xb8/0x310
[  453.260111] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  453.273653]  ? trace_hardirqs_off+0xb8/0x310
[  453.278055] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  453.292806]  __alloc_pages_slowpath+0x2651/0x2de0
[  453.297202] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  453.311952]  ? warn_alloc+0x120/0x120
[  453.316750] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  453.325571]  ? warn_alloc+0x120/0x120
[  453.329347] 1360 total pagecache pages
[  453.337907]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  453.341688] 0 pages in swap cache
[  453.345560]  ? warn_alloc+0x120/0x120
[  453.350554] Swap cache stats: add 0, delete 0, find 0/0
[  453.353990]  ? print_usage_bug+0xc0/0xc0
[  453.357766] Free swap  = 0kB
[  453.363131]  ? print_usage_bug+0xc0/0xc0
[  453.367175] Total swap = 0kB
[  453.370188]  ? check_usage+0x1aa/0x790
[  453.374223] 1965979 pages RAM
[  453.377230]  ? check_usage+0x1aa/0x790
[  453.381093] 0 pages HighMem/MovableOnly
[  453.384203]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.388064] 342854 pages reserved
[  453.392024]  ? should_fail+0x22d/0xd01
[  453.397559] 0 pages cma reserved
[  453.401015]  ? check_usage_forwards+0x3d0/0x3d0
[  453.404999] aoe: skb alloc failure
[  453.408254]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  453.412956] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  453.416421]  ? __lock_acquire+0x62f/0x4c20
[  453.421503] syz-executor4 cpuset=syz4 mems_allowed=0
[  453.431980]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  453.446437]  ? should_fail+0x22d/0xd01
[  453.450359]  ? mark_held_locks+0x130/0x130
[  453.454602]  ? mark_held_locks+0x130/0x130
[  453.458861]  ? print_usage_bug+0xc0/0xc0
[  453.462931]  ? find_held_lock+0x36/0x1c0
[  453.467008]  ? zap_class+0x640/0x640
[  453.470741]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.476271]  ? check_preemption_disabled+0x48/0x280
[  453.481284]  ? __lock_is_held+0xb5/0x140
[  453.485357]  __alloc_pages_nodemask+0xad8/0xea0
[  453.490020]  ? zap_class+0x640/0x640
[  453.493730]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  453.498769]  ? find_held_lock+0x36/0x1c0
[  453.502878]  ? ____cache_alloc_node+0x1c7/0x1e0
[  453.507541]  ? lock_downgrade+0x900/0x900
[  453.511721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.517258]  cache_grow_begin+0xa5/0x8c0
[  453.521315]  ? do_raw_spin_unlock+0xa7/0x330
[  453.525724]  fallback_alloc+0x204/0x2e0
[  453.529715]  ____cache_alloc_node+0x1c7/0x1e0
[  453.534243]  kmem_cache_alloc_node+0xe3/0x730
[  453.538734]  ? mark_held_locks+0xc7/0x130
[  453.542898]  __alloc_skb+0x119/0x770
[  453.546633]  ? netdev_alloc_frag+0x1f0/0x1f0
[  453.551068]  ? do_raw_spin_trylock+0x270/0x270
[  453.555651]  ? kmem_cache_alloc_trace+0x353/0x750
[  453.560497]  ? queue_work_on+0x12c/0x1e0
[  453.564572]  ? switchdev_port_obj_del+0xdc/0x440
[  453.569376]  ? switchdev_trans_item_enqueue+0x260/0x260
[  453.574751]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  453.579787]  __br_mdb_notify+0x4ff/0x15d0
[  453.583963]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  453.589073]  ? __br_mdb_add+0x7f0/0x7f0
[  453.593076]  ? mark_held_locks+0x130/0x130
[  453.597314]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  453.602416]  ? debug_object_assert_init+0x368/0x4b0
[  453.607438]  ? debug_object_init_on_stack+0x20/0x20
[  453.612467]  ? zap_class+0x640/0x640
[  453.616195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.621764]  br_mdb_notify+0x310/0x410
[  453.625666]  ? br_mdb_dump+0x27b0/0x27b0
[  453.629740]  br_multicast_del_pg+0x3df/0x790
[  453.634150]  ? br_mdb_ip_get+0x940/0x940
[  453.638235]  ? rwlock_bug.part.2+0x90/0x90
[  453.642468]  ? __lock_is_held+0xb5/0x140
[  453.646533]  br_multicast_port_group_expired+0x189/0x1e0
[  453.651979]  call_timer_fn+0x272/0x920
[  453.655864]  ? br_multicast_del_pg+0x790/0x790
[  453.660437]  ? process_timeout+0x40/0x40
[  453.664501]  ? mark_held_locks+0xc7/0x130
[  453.668655]  ? _raw_spin_unlock_irq+0x27/0x80
[  453.673156]  ? _raw_spin_unlock_irq+0x27/0x80
[  453.677684]  ? br_multicast_del_pg+0x790/0x790
[  453.682266]  ? lockdep_hardirqs_on+0x296/0x5b0
[  453.686855]  ? trace_hardirqs_on+0xbd/0x310
[  453.691206]  ? kasan_check_read+0x11/0x20
[  453.695348]  ? __run_timers+0x7da/0xc70
[  453.699318]  ? trace_hardirqs_off_caller+0x310/0x310
[  453.704421]  ? br_multicast_del_pg+0x790/0x790
[  453.709003]  ? br_multicast_del_pg+0x790/0x790
[  453.713584]  __run_timers+0x7e5/0xc70
[  453.717416]  ? timer_fixup_init+0x70/0x70
[  453.721579]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  453.726594]  ? zap_class+0x640/0x640
[  453.730310]  ? print_usage_bug+0xc0/0xc0
[  453.734404]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  453.739595]  ? find_held_lock+0x36/0x1c0
[  453.743688]  ? zap_class+0x640/0x640
[  453.747407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.752961]  ? check_preemption_disabled+0x48/0x280
[  453.757983]  ? __lock_is_held+0xb5/0x140
[  453.762044]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.767579]  ? check_preemption_disabled+0x48/0x280
[  453.772629]  run_timer_softirq+0x52/0xb0
[  453.776698]  ? rcu_read_lock_sched_held+0x14f/0x180
[  453.781716]  __do_softirq+0x308/0xb7e
[  453.785523]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  453.790017]  ? lock_downgrade+0x900/0x900
[  453.794175]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  453.799287]  ? pvclock_read_flags+0x160/0x160
[  453.803819]  ? lapic_next_event+0x5a/0x90
[  453.808014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.813570]  ? kvm_clock_read+0x18/0x30
[  453.817561]  ? kvm_sched_clock_read+0x9/0x20
[  453.821973]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  453.827514]  ? check_preemption_disabled+0x48/0x280
[  453.832541]  irq_exit+0x17f/0x1c0
[  453.836007]  smp_apic_timer_interrupt+0x1cb/0x760
[  453.840852]  ? smp_reschedule_interrupt+0x109/0x650
[  453.845869]  ? smp_call_function_single_interrupt+0x650/0x650
[  453.851752]  ? interrupt_entry+0xb5/0xc0
[  453.855847]  ? trace_hardirqs_off_caller+0xbb/0x310
[  453.860879]  ? trace_hardirqs_off_caller+0xbb/0x310
[  453.865914]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.870763]  ? trace_hardirqs_on_caller+0x310/0x310
[  453.875795]  ? trace_hardirqs_on_caller+0x310/0x310
[  453.880810]  ? task_prio+0x50/0x50
[  453.884373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  453.889911]  ? check_preemption_disabled+0x48/0x280
[  453.894963]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  453.899836]  apic_timer_interrupt+0xf/0x20
[  453.904074]  </IRQ>
[  453.906314] RIP: 0010:lock_acquire+0x268/0x520
[  453.910903] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  453.929821] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  453.937529] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  453.944818] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  453.952084] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  453.959354] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  453.966649] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  453.973956]  ? lruvec_lru_size+0x450/0x450
[  453.978197]  ? kasan_check_read+0x11/0x20
[  453.982347]  ? lock_release+0xa00/0xa00
[  453.986330]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  453.991274]  down_read_trylock+0xda/0x140
[  453.995419]  ? shrink_slab+0x207/0x8c0
[  453.999310]  ? downgrade_write+0x270/0x270
[  454.003558]  shrink_slab+0x207/0x8c0
[  454.007275]  ? shrink_active_list+0x1f00/0x1f00
[  454.011969]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  454.017610]  ? __lock_acquire+0x62f/0x4c20
[  454.021862]  ? percpu_ref_get_many+0x240/0x240
[  454.026462]  ? print_usage_bug+0xc0/0xc0
[  454.030557]  shrink_node+0x431/0x16b0
[  454.034361]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  454.039672]  ? shrink_node_memcg+0x18f0/0x18f0
[  454.044270]  ? kvm_clock_read+0x18/0x30
[  454.048272]  ? ktime_get+0x2c1/0x400
[  454.051990]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  454.056488]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  454.062037]  ? __cpuset_node_allowed+0x19b/0x660
[  454.066789]  ? mark_held_locks+0x130/0x130
[  454.071022]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  454.076747]  ? zap_class+0x640/0x640
[  454.080482]  do_try_to_free_pages+0x3e7/0x1290
[  454.085062]  ? zap_class+0x640/0x640
[  454.088793]  ? shrink_node+0x16b0/0x16b0
[  454.092864]  ? __lock_is_held+0xb5/0x140
[  454.096961]  try_to_free_pages+0x4d0/0xb90
[  454.101208]  ? do_try_to_free_pages+0x1290/0x1290
[  454.106067]  ? lock_acquire+0x1ed/0x520
[  454.110046]  ? set_page_refcounted+0x280/0x280
[  454.114633]  ? lock_release+0xa00/0xa00
[  454.118608]  ? _raw_spin_unlock_irq+0x60/0x80
[  454.123104]  ? psi_memstall_enter+0x240/0x2b0
[  454.127598]  ? psi_memstall_tick+0x230/0x230
[  454.132034]  __alloc_pages_slowpath+0xa48/0x2de0
[  454.136819]  ? warn_alloc+0x120/0x120
[  454.140620]  ? mark_held_locks+0x130/0x130
[  454.144866]  ? find_get_entry+0xaae/0x1120
[  454.149119]  ? filemap_map_pages+0x1a20/0x1a20
[  454.153714]  ? zap_class+0x640/0x640
[  454.157436]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.162977]  ? check_preemption_disabled+0x48/0x280
[  454.167994]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.173536]  ? should_fail+0x22d/0xd01
[  454.177430]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  454.182533]  ? zap_class+0x640/0x640
[  454.186273]  ? __lock_is_held+0xb5/0x140
[  454.190337]  ? mark_held_locks+0x130/0x130
[  454.194571]  ? lock_release+0xa00/0xa00
[  454.198546]  ? perf_trace_sched_process_exec+0x860/0x860
[  454.203993]  ? xa_load+0x2ba/0x460
[  454.207536]  ? lock_downgrade+0x900/0x900
[  454.211699]  ? __might_sleep+0x95/0x190
[  454.215692]  __alloc_pages_nodemask+0xad8/0xea0
[  454.220366]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  454.225385]  ? __page_cache_alloc+0x191/0x5c0
[  454.229877]  ? xa_load+0x2e1/0x460
[  454.233413]  ? xa_clear_mark+0x40/0x40
[  454.237300]  ? zap_class+0x640/0x640
[  454.241018]  ? zap_class+0x640/0x640
[  454.244726]  ? zap_class+0x640/0x640
[  454.248439]  ? __do_page_cache_readahead+0x663/0x810
[  454.253575]  ? find_held_lock+0x36/0x1c0
[  454.257634]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  454.263194]  alloc_pages_current+0x173/0x350
[  454.267604]  __page_cache_alloc+0x38c/0x5c0
[  454.271934]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  454.276867]  ? kasan_check_read+0x11/0x20
[  454.281007]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  454.286310]  ? generic_perform_write+0x6a0/0x6a0
[  454.291065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.296600]  ? check_preemption_disabled+0x48/0x280
[  454.301623]  filemap_fault+0x1595/0x25f0
[  454.305701]  ? __lock_page_or_retry+0xa00/0xa00
[  454.310365]  ? mark_held_locks+0x130/0x130
[  454.314601]  ? filemap_map_pages+0xd6b/0x1a20
[  454.319092]  ? lock_downgrade+0x900/0x900
[  454.323233]  ? check_preemption_disabled+0x48/0x280
[  454.328246]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  454.333173]  ? kasan_check_read+0x11/0x20
[  454.337316]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  454.342610]  ? rcu_softirq_qs+0x20/0x20
[  454.346605]  ? filemap_map_pages+0xd92/0x1a20
[  454.351172]  ? find_get_entries_tag+0x1400/0x1400
[  454.356012]  ? debug_object_destroy+0x2b0/0x2b0
[  454.360708]  ? lock_pi_update_atomic+0x150/0x150
[  454.365456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.371030]  ? lock_acquire+0x1ed/0x520
[  454.374996]  ? ext4_filemap_fault+0x7a/0xad
[  454.379316]  ? lock_release+0xa00/0xa00
[  454.383284]  ? perf_trace_sched_process_exec+0x860/0x860
[  454.388746]  ? print_usage_bug+0xc0/0xc0
[  454.392796]  ? print_usage_bug+0xc0/0xc0
[  454.396886]  ? down_read+0x8d/0x120
[  454.400505]  ? ext4_filemap_fault+0x7a/0xad
[  454.404821]  ? __down_interruptible+0x700/0x700
[  454.409518]  ext4_filemap_fault+0x82/0xad
[  454.413662]  __do_fault+0x100/0x6b0
[  454.417312]  ? find_held_lock+0x36/0x1c0
[  454.421371]  ? pmd_devmap_trans_unstable+0x220/0x220
[  454.426488]  ? mark_held_locks+0x130/0x130
[  454.430730]  ? mark_held_locks+0x130/0x130
[  454.434966]  ? kasan_check_read+0x11/0x20
[  454.439123]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.444659]  __handle_mm_fault+0x3ea0/0x5be0
[  454.449061]  ? perf_trace_lock+0x7a0/0x7a0
[  454.453328]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  454.458175]  ? __switch_to_asm+0x34/0x70
[  454.462246]  ? __switch_to_asm+0x34/0x70
[  454.466324]  ? zap_class+0x640/0x640
[  454.470035]  ? zap_class+0x640/0x640
[  454.473740]  ? __x64_sys_futex+0x53e/0x6a0
[  454.477975]  ? find_held_lock+0x36/0x1c0
[  454.482041]  ? handle_mm_fault+0x42a/0xc70
[  454.486274]  ? lock_downgrade+0x900/0x900
[  454.490416]  ? check_preemption_disabled+0x48/0x280
[  454.495460]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  454.500382]  ? kasan_check_read+0x11/0x20
[  454.504525]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  454.509792]  ? rcu_softirq_qs+0x20/0x20
[  454.513791]  ? trace_hardirqs_off_caller+0x310/0x310
[  454.518896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  454.524430]  ? sync_mm_rss+0x9a/0x1c0
[  454.528251]  handle_mm_fault+0x54f/0xc70
[  454.532319]  ? __handle_mm_fault+0x5be0/0x5be0
[  454.536904]  ? find_vma+0x34/0x190
[  454.540444]  __do_page_fault+0x5e8/0xe60
[  454.544498]  ? trace_hardirqs_off+0xb8/0x310
[  454.548924]  do_page_fault+0xf2/0x7e0
[  454.552730]  ? vmalloc_sync_all+0x30/0x30
[  454.556889]  ? error_entry+0x70/0xd0
[  454.560602]  ? trace_hardirqs_off_caller+0xbb/0x310
[  454.565614]  ? trace_hardirqs_on_caller+0xc0/0x310
[  454.570540]  ? syscall_return_slowpath+0x5e0/0x5e0
[  454.575505]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  454.580429]  ? trace_hardirqs_on_caller+0x310/0x310
[  454.585450]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  454.591030]  ? prepare_exit_to_usermode+0x291/0x3b0
[  454.596060]  ? page_fault+0x8/0x30
[  454.599602]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  454.604443]  ? page_fault+0x8/0x30
[  454.607981]  page_fault+0x1e/0x30
[  454.611426] RIP: 0033:0x45ddf3
[  454.614641] Code: Bad RIP value.
[  454.617998] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  454.623360] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  454.630622] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  454.637898] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  454.645157] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  454.652429] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  454.659724] Mem-Info:
[  454.659737] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  454.659748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  454.662157] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  454.662157]  active_file:17 inactive_file:17 isolated_file:0
[  454.662157]  unevictable:0 dirty:4 writeback:0 unstable:0
[  454.662157]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  454.662157]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  454.662157]  free:13550 free_pcp:124 free_cma:0
[  454.669408] Call Trace:
[  454.678788] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  454.711820]  <IRQ>
[  454.714393] 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
[  454.742157]  dump_stack+0x244/0x39d
[  454.744289] lowmem_reserve[]: 0 2818 6321 6321
[  454.770389]  ? dump_stack_print_info.cold.1+0x20/0x20
[  454.773990] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  454.778568]  warn_alloc.cold.116+0xb7/0x1bd
[  454.783724] lowmem_reserve[]: 0 0 3503 3503
[  454.811038]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  454.815335] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  454.819679]  ? lock_downgrade+0x900/0x900
[  454.824495] lowmem_reserve[]: 0 0 0 0
[  454.853395]  ? trace_hardirqs_off+0xb8/0x310
[  454.857520] 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
[  454.861320]  ? trace_hardirqs_off+0xb8/0x310
[  454.865697] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  454.879227]  __alloc_pages_slowpath+0x2651/0x2de0
[  454.883604] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  454.898389]  ? warn_alloc+0x120/0x120
[  454.903194] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  454.917914]  ? warn_alloc+0x120/0x120
[  454.921708] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  454.930537]  ? warn_alloc+0x120/0x120
[  454.934311] 1360 total pagecache pages
[  454.942872]  ? print_usage_bug+0xc0/0xc0
[  454.946651] 0 pages in swap cache
[  454.950744]  ? print_usage_bug+0xc0/0xc0
[  454.954803] Swap cache stats: add 0, delete 0, find 0/0
[  454.958243]  ? ktime_get+0x2c1/0x400
[  454.962289] Free swap  = 0kB
[  454.967705]  ? check_preemption_disabled+0x48/0x280
[  454.971401] Total swap = 0kB
[  454.974410]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  454.979398] 1965979 pages RAM
[  454.982409]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  454.986891] 0 pages HighMem/MovableOnly
[  454.989992]  ? should_fail+0x22d/0xd01
[  454.995504] 342854 pages reserved
[  454.999476]  ? kasan_check_read+0x11/0x20
[  455.003345] 0 pages cma reserved
[  455.006788]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.011105] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  455.014288]  ? __lock_acquire+0x62f/0x4c20
[  455.019368] syz-fuzzer cpuset=/ mems_allowed=0
[  455.029585]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.043487]  ? should_fail+0x22d/0xd01
[  455.047371]  ? print_usage_bug+0xc0/0xc0
[  455.051462]  ? mark_held_locks+0x130/0x130
[  455.055716]  ? mark_held_locks+0x130/0x130
[  455.059953]  ? check_preemption_disabled+0x48/0x280
[  455.064994]  ? zap_class+0x640/0x640
[  455.068726]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  455.073483]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.079031]  ? check_preemption_disabled+0x48/0x280
[  455.084159]  ? __lock_is_held+0xb5/0x140
[  455.088230]  __alloc_pages_nodemask+0xad8/0xea0
[  455.092921]  ? zap_class+0x640/0x640
[  455.096639]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  455.101683]  ? find_held_lock+0x36/0x1c0
[  455.105770]  ? ____cache_alloc_node+0x1c7/0x1e0
[  455.110443]  ? lock_downgrade+0x900/0x900
[  455.114597]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.120134]  cache_grow_begin+0xa5/0x8c0
[  455.124197]  ? do_raw_spin_unlock+0xa7/0x330
[  455.128605]  fallback_alloc+0x204/0x2e0
[  455.132595]  ____cache_alloc_node+0x1c7/0x1e0
[  455.137147]  kmem_cache_alloc_node+0xe3/0x730
[  455.141661]  ? lockdep_hardirqs_on+0x296/0x5b0
[  455.146249]  __alloc_skb+0x119/0x770
[  455.149973]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  455.155334]  ? netdev_alloc_frag+0x1f0/0x1f0
[  455.159761]  ? vprintk_default+0x28/0x30
[  455.163834]  ? vprintk_func+0x85/0x181
[  455.167766]  ? printk+0xa7/0xcf
[  455.171059]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  455.175823]  new_skb+0x26/0x1c0
[  455.179101]  aoecmd_cfg+0x279/0x7f0
[  455.182728]  ? find_held_lock+0x36/0x1c0
[  455.186790]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  455.191119]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.196684]  ? __lock_is_held+0xb5/0x140
[  455.200771]  discover_timer+0x50/0x60
[  455.204586]  call_timer_fn+0x272/0x920
[  455.208471]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  455.213312]  ? process_timeout+0x40/0x40
[  455.217376]  ? __run_timers+0x7da/0xc70
[  455.221350]  ? _raw_spin_unlock_irq+0x27/0x80
[  455.225867]  ? _raw_spin_unlock_irq+0x27/0x80
[  455.230359]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  455.235195]  ? lockdep_hardirqs_on+0x296/0x5b0
[  455.239790]  ? trace_hardirqs_on+0xbd/0x310
[  455.244112]  ? kasan_check_read+0x11/0x20
[  455.248253]  ? __run_timers+0x7da/0xc70
[  455.252241]  ? trace_hardirqs_off_caller+0x310/0x310
[  455.257355]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  455.262194]  __run_timers+0x7e5/0xc70
[  455.265998]  ? timer_fixup_init+0x70/0x70
[  455.270137]  ? kasan_check_read+0x11/0x20
[  455.274315]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.279600]  ? rcu_softirq_qs+0x20/0x20
[  455.283564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.289091]  ? check_preemption_disabled+0x48/0x280
[  455.294099]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  455.298868]  ? retint_kernel+0x2d/0x2d
[  455.302749]  ? trace_hardirqs_on_caller+0xc0/0x310
[  455.307736]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  455.312500]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  455.317996]  ? zap_class+0x640/0x640
[  455.321721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.327259]  ? check_preemption_disabled+0x48/0x280
[  455.332277]  ? __lock_is_held+0xb5/0x140
[  455.336334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.341864]  ? check_preemption_disabled+0x48/0x280
[  455.346878]  run_timer_softirq+0x52/0xb0
[  455.350934]  ? rcu_read_lock_sched_held+0x14f/0x180
[  455.355958]  __do_softirq+0x308/0xb7e
[  455.359753]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  455.364283]  ? lock_downgrade+0x900/0x900
[  455.368454]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  455.373575]  ? pvclock_read_flags+0x160/0x160
[  455.378064]  ? lapic_next_event+0x5a/0x90
[  455.382200]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.387733]  ? kvm_clock_read+0x18/0x30
[  455.391713]  ? kvm_sched_clock_read+0x9/0x20
[  455.396111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.401635]  ? check_preemption_disabled+0x48/0x280
[  455.406663]  irq_exit+0x17f/0x1c0
[  455.410107]  smp_apic_timer_interrupt+0x1cb/0x760
[  455.414938]  ? smp_reschedule_interrupt+0x109/0x650
[  455.419945]  ? smp_call_function_single_interrupt+0x650/0x650
[  455.425819]  ? interrupt_entry+0xb5/0xc0
[  455.429868]  ? trace_hardirqs_off_caller+0xbb/0x310
[  455.434899]  ? trace_hardirqs_off_caller+0xbb/0x310
[  455.439904]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.444739]  ? trace_hardirqs_on_caller+0x310/0x310
[  455.449762]  ? trace_hardirqs_on_caller+0x310/0x310
[  455.454782]  ? task_prio+0x50/0x50
[  455.458313]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.463844]  ? check_preemption_disabled+0x48/0x280
[  455.468884]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.473721]  apic_timer_interrupt+0xf/0x20
[  455.477939]  </IRQ>
[  455.480191] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  455.485140] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  455.504051] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  455.511751] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  455.519024] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  455.526285] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  455.533561] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  455.540835] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  455.548126]  skb_clone+0x1bb/0x500
[  455.551690]  ? skb_split+0x11e0/0x11e0
[  455.555608]  ? preempt_notifier_register+0x200/0x200
[  455.560704]  ? __switch_to_asm+0x34/0x70
[  455.564789]  ? __switch_to_asm+0x34/0x70
[  455.568873]  ? __switch_to_asm+0x40/0x70
[  455.572927]  ? __switch_to_asm+0x34/0x70
[  455.576979]  ? __switch_to_asm+0x40/0x70
[  455.581033]  ? __switch_to_asm+0x40/0x70
[  455.585086]  ? __switch_to_asm+0x34/0x70
[  455.589143]  ? __switch_to_asm+0x34/0x70
[  455.593205]  ? __switch_to_asm+0x40/0x70
[  455.597258]  ? __switch_to_asm+0x34/0x70
[  455.601323]  bpf_clone_redirect+0xb9/0x490
[  455.605582]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  455.610602]  ? __sched_text_start+0x8/0x8
[  455.614750]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  455.619520]  ? find_held_lock+0x36/0x1c0
[  455.623590]  ? lock_acquire+0x1ed/0x520
[  455.627620]  ? bpf_test_run+0x3ee/0x7a0
[  455.631593]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.637130]  ? check_preemption_disabled+0x48/0x280
[  455.642152]  ? kasan_check_read+0x11/0x20
[  455.646319]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  455.651601]  ? rcu_softirq_qs+0x20/0x20
[  455.655581]  ? preempt_schedule+0x4d/0x60
[  455.659732]  ? ___preempt_schedule+0x16/0x18
[  455.664149]  ? bpf_test_run+0x271/0x7a0
[  455.668142]  ? netlink_diag_dump+0x2a0/0x2a0
[  455.672562]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.678114]  ? bpf_test_init.isra.10+0x70/0x100
[  455.682788]  ? bpf_prog_test_run_skb+0x762/0xd60
[  455.687554]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  455.692402]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  455.697951]  ? fput+0x130/0x1a0
[  455.701237]  ? __bpf_prog_get+0x9b/0x290
[  455.705315]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  455.710157]  ? bpf_prog_test_run+0x130/0x1a0
[  455.714580]  ? __x64_sys_bpf+0x3d8/0x520
[  455.718643]  ? bpf_prog_get+0x20/0x20
[  455.722472]  ? do_syscall_64+0x1b9/0x820
[  455.726546]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  455.731909]  ? syscall_return_slowpath+0x5e0/0x5e0
[  455.736832]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.741670]  ? trace_hardirqs_on_caller+0x310/0x310
[  455.746722]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  455.751753]  ? prepare_exit_to_usermode+0x291/0x3b0
[  455.756800]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  455.761673]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  455.767073] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  455.767137] aoe: skb alloc failure
[  455.773998] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  455.774003] Call Trace:
[  455.774008]  <IRQ>
[  455.774022]  dump_stack+0x244/0x39d
[  455.774043]  ? dump_stack_print_info.cold.1+0x20/0x20
[  455.777592] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  455.786928]  warn_alloc.cold.116+0xb7/0x1bd
[  455.789477] syz-executor4 cpuset=syz4 mems_allowed=0
[  455.791629]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  455.825123]  ? lock_downgrade+0x900/0x900
[  455.829305]  ? trace_hardirqs_off+0xb8/0x310
[  455.833718]  ? trace_hardirqs_off+0xb8/0x310
[  455.838145]  __alloc_pages_slowpath+0x2651/0x2de0
[  455.843009]  ? warn_alloc+0x120/0x120
[  455.846808]  ? warn_alloc+0x120/0x120
[  455.850611]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  455.855624]  ? warn_alloc+0x120/0x120
[  455.859425]  ? print_usage_bug+0xc0/0xc0
[  455.863488]  ? print_usage_bug+0xc0/0xc0
[  455.867547]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  455.872750]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  455.878289]  ? should_fail+0x22d/0xd01
[  455.882204]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.887325]  ? __lock_acquire+0x62f/0x4c20
[  455.891563]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  455.896665]  ? should_fail+0x22d/0xd01
[  455.900565]  ? mark_held_locks+0x130/0x130
[  455.904803]  ? mark_held_locks+0x130/0x130
[  455.909045]  ? print_usage_bug+0xc0/0xc0
[  455.913114]  ? find_held_lock+0x36/0x1c0
[  455.917197]  ? zap_class+0x640/0x640
[  455.920929]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.926476]  ? check_preemption_disabled+0x48/0x280
[  455.931505]  ? __lock_is_held+0xb5/0x140
[  455.935571]  __alloc_pages_nodemask+0xad8/0xea0
[  455.940271]  ? zap_class+0x640/0x640
[  455.943991]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  455.949035]  ? find_held_lock+0x36/0x1c0
[  455.953104]  ? ____cache_alloc_node+0x1c7/0x1e0
[  455.957775]  ? lock_downgrade+0x900/0x900
[  455.961932]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  455.967479]  cache_grow_begin+0xa5/0x8c0
[  455.971543]  ? do_raw_spin_unlock+0xa7/0x330
[  455.975980]  fallback_alloc+0x204/0x2e0
[  455.979965]  ____cache_alloc_node+0x1c7/0x1e0
[  455.984471]  kmem_cache_alloc_node+0xe3/0x730
[  455.988968]  ? mark_held_locks+0xc7/0x130
[  455.993150]  __alloc_skb+0x119/0x770
[  455.996876]  ? netdev_alloc_frag+0x1f0/0x1f0
[  456.001278]  ? do_raw_spin_trylock+0x270/0x270
[  456.005859]  ? kmem_cache_alloc_trace+0x353/0x750
[  456.010712]  ? queue_work_on+0x12c/0x1e0
[  456.014777]  ? switchdev_port_obj_del+0xdc/0x440
[  456.019571]  ? switchdev_trans_item_enqueue+0x260/0x260
[  456.024962]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  456.029991]  __br_mdb_notify+0x4ff/0x15d0
[  456.034138]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  456.039259]  ? __br_mdb_add+0x7f0/0x7f0
[  456.043243]  ? mark_held_locks+0x130/0x130
[  456.047482]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  456.052605]  ? debug_object_assert_init+0x368/0x4b0
[  456.057627]  ? debug_object_init_on_stack+0x20/0x20
[  456.062644]  ? zap_class+0x640/0x640
[  456.066361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.071920]  br_mdb_notify+0x310/0x410
[  456.075817]  ? br_mdb_dump+0x27b0/0x27b0
[  456.079914]  br_multicast_del_pg+0x3df/0x790
[  456.084334]  ? br_mdb_ip_get+0x940/0x940
[  456.088399]  ? rwlock_bug.part.2+0x90/0x90
[  456.092640]  ? __lock_is_held+0xb5/0x140
[  456.096716]  br_multicast_port_group_expired+0x189/0x1e0
[  456.102181]  call_timer_fn+0x272/0x920
[  456.106069]  ? br_multicast_del_pg+0x790/0x790
[  456.110653]  ? process_timeout+0x40/0x40
[  456.114726]  ? mark_held_locks+0xc7/0x130
[  456.118890]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.123384]  ? _raw_spin_unlock_irq+0x27/0x80
[  456.127879]  ? br_multicast_del_pg+0x790/0x790
[  456.132479]  ? lockdep_hardirqs_on+0x296/0x5b0
[  456.137076]  ? trace_hardirqs_on+0xbd/0x310
[  456.141407]  ? kasan_check_read+0x11/0x20
[  456.145552]  ? __run_timers+0x7da/0xc70
[  456.149526]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.154635]  ? br_multicast_del_pg+0x790/0x790
[  456.159227]  ? br_multicast_del_pg+0x790/0x790
[  456.163807]  __run_timers+0x7e5/0xc70
[  456.167622]  ? timer_fixup_init+0x70/0x70
[  456.171782]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  456.176816]  ? zap_class+0x640/0x640
[  456.180537]  ? print_usage_bug+0xc0/0xc0
[  456.184613]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  456.189804]  ? find_held_lock+0x36/0x1c0
[  456.193895]  ? zap_class+0x640/0x640
[  456.197639]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.203182]  ? check_preemption_disabled+0x48/0x280
[  456.208211]  ? __lock_is_held+0xb5/0x140
[  456.212268]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.217830]  ? check_preemption_disabled+0x48/0x280
[  456.222859]  run_timer_softirq+0x52/0xb0
[  456.226916]  ? rcu_read_lock_sched_held+0x14f/0x180
[  456.231930]  __do_softirq+0x308/0xb7e
[  456.235765]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  456.240253]  ? lock_downgrade+0x900/0x900
[  456.244433]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  456.249553]  ? pvclock_read_flags+0x160/0x160
[  456.254062]  ? lapic_next_event+0x5a/0x90
[  456.258240]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.263802]  ? kvm_clock_read+0x18/0x30
[  456.267771]  ? kvm_sched_clock_read+0x9/0x20
[  456.272196]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.277729]  ? check_preemption_disabled+0x48/0x280
[  456.282767]  irq_exit+0x17f/0x1c0
[  456.286258]  smp_apic_timer_interrupt+0x1cb/0x760
[  456.291091]  ? smp_reschedule_interrupt+0x109/0x650
[  456.296099]  ? smp_call_function_single_interrupt+0x650/0x650
[  456.301976]  ? interrupt_entry+0xb5/0xc0
[  456.306029]  ? trace_hardirqs_off_caller+0xbb/0x310
[  456.311034]  ? trace_hardirqs_off_caller+0xbb/0x310
[  456.316064]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.320944]  ? trace_hardirqs_on_caller+0x310/0x310
[  456.325958]  ? trace_hardirqs_on_caller+0x310/0x310
[  456.330972]  ? task_prio+0x50/0x50
[  456.334507]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.340049]  ? check_preemption_disabled+0x48/0x280
[  456.345079]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  456.349932]  apic_timer_interrupt+0xf/0x20
[  456.354160]  </IRQ>
[  456.356415] RIP: 0010:lock_acquire+0x268/0x520
[  456.360995] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  456.379909] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  456.387610] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  456.394870] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  456.402131] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  456.409392] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  456.416691] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  456.423972]  ? lruvec_lru_size+0x450/0x450
[  456.428209]  ? kasan_check_read+0x11/0x20
[  456.432362]  ? lock_release+0xa00/0xa00
[  456.436329]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  456.441263]  down_read_trylock+0xda/0x140
[  456.445401]  ? shrink_slab+0x207/0x8c0
[  456.449281]  ? downgrade_write+0x270/0x270
[  456.453559]  shrink_slab+0x207/0x8c0
[  456.457278]  ? shrink_active_list+0x1f00/0x1f00
[  456.461968]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  456.467585]  ? __lock_acquire+0x62f/0x4c20
[  456.471826]  ? percpu_ref_get_many+0x240/0x240
[  456.476426]  ? print_usage_bug+0xc0/0xc0
[  456.480491]  shrink_node+0x431/0x16b0
[  456.484358]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  456.489657]  ? shrink_node_memcg+0x18f0/0x18f0
[  456.494247]  ? kvm_clock_read+0x18/0x30
[  456.498212]  ? ktime_get+0x2c1/0x400
[  456.501920]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  456.506415]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  456.511954]  ? __cpuset_node_allowed+0x19b/0x660
[  456.516702]  ? mark_held_locks+0x130/0x130
[  456.520934]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  456.526649]  ? zap_class+0x640/0x640
[  456.530367]  do_try_to_free_pages+0x3e7/0x1290
[  456.534948]  ? zap_class+0x640/0x640
[  456.538671]  ? shrink_node+0x16b0/0x16b0
[  456.542741]  ? __lock_is_held+0xb5/0x140
[  456.546822]  try_to_free_pages+0x4d0/0xb90
[  456.551064]  ? do_try_to_free_pages+0x1290/0x1290
[  456.555915]  ? lock_acquire+0x1ed/0x520
[  456.559935]  ? set_page_refcounted+0x280/0x280
[  456.564524]  ? lock_release+0xa00/0xa00
[  456.568498]  ? _raw_spin_unlock_irq+0x60/0x80
[  456.572989]  ? psi_memstall_enter+0x240/0x2b0
[  456.577484]  ? psi_memstall_tick+0x230/0x230
[  456.581905]  __alloc_pages_slowpath+0xa48/0x2de0
[  456.586687]  ? warn_alloc+0x120/0x120
[  456.590484]  ? mark_held_locks+0x130/0x130
[  456.594724]  ? find_get_entry+0xaae/0x1120
[  456.598971]  ? filemap_map_pages+0x1a20/0x1a20
[  456.603551]  ? zap_class+0x640/0x640
[  456.607311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.612843]  ? check_preemption_disabled+0x48/0x280
[  456.617872]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.623412]  ? should_fail+0x22d/0xd01
[  456.627302]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  456.632404]  ? zap_class+0x640/0x640
[  456.636139]  ? __lock_is_held+0xb5/0x140
[  456.640210]  ? mark_held_locks+0x130/0x130
[  456.644444]  ? lock_release+0xa00/0xa00
[  456.648420]  ? perf_trace_sched_process_exec+0x860/0x860
[  456.653899]  ? xa_load+0x2ba/0x460
[  456.657436]  ? lock_downgrade+0x900/0x900
[  456.661594]  ? __might_sleep+0x95/0x190
[  456.665569]  __alloc_pages_nodemask+0xad8/0xea0
[  456.670269]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  456.675282]  ? __page_cache_alloc+0x191/0x5c0
[  456.679774]  ? xa_load+0x2e1/0x460
[  456.683331]  ? xa_clear_mark+0x40/0x40
[  456.687220]  ? zap_class+0x640/0x640
[  456.690962]  ? zap_class+0x640/0x640
[  456.694686]  ? zap_class+0x640/0x640
[  456.698412]  ? __do_page_cache_readahead+0x663/0x810
[  456.703516]  ? find_held_lock+0x36/0x1c0
[  456.707579]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  456.713117]  alloc_pages_current+0x173/0x350
[  456.717525]  __page_cache_alloc+0x38c/0x5c0
[  456.721850]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  456.726770]  ? kasan_check_read+0x11/0x20
[  456.730929]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.736211]  ? generic_perform_write+0x6a0/0x6a0
[  456.740970]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.746512]  ? check_preemption_disabled+0x48/0x280
[  456.751535]  filemap_fault+0x1595/0x25f0
[  456.755614]  ? __lock_page_or_retry+0xa00/0xa00
[  456.760276]  ? mark_held_locks+0x130/0x130
[  456.764509]  ? filemap_map_pages+0xd6b/0x1a20
[  456.768996]  ? lock_downgrade+0x900/0x900
[  456.773137]  ? check_preemption_disabled+0x48/0x280
[  456.778155]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  456.783087]  ? kasan_check_read+0x11/0x20
[  456.787232]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.792517]  ? rcu_softirq_qs+0x20/0x20
[  456.796499]  ? filemap_map_pages+0xd92/0x1a20
[  456.801001]  ? find_get_entries_tag+0x1400/0x1400
[  456.805846]  ? debug_object_destroy+0x2b0/0x2b0
[  456.810512]  ? lock_pi_update_atomic+0x150/0x150
[  456.815301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.820894]  ? lock_acquire+0x1ed/0x520
[  456.824895]  ? ext4_filemap_fault+0x7a/0xad
[  456.829216]  ? lock_release+0xa00/0xa00
[  456.833188]  ? perf_trace_sched_process_exec+0x860/0x860
[  456.838637]  ? print_usage_bug+0xc0/0xc0
[  456.842706]  ? print_usage_bug+0xc0/0xc0
[  456.846807]  ? down_read+0x8d/0x120
[  456.850448]  ? ext4_filemap_fault+0x7a/0xad
[  456.854765]  ? __down_interruptible+0x700/0x700
[  456.859457]  ext4_filemap_fault+0x82/0xad
[  456.863605]  __do_fault+0x100/0x6b0
[  456.867252]  ? find_held_lock+0x36/0x1c0
[  456.871316]  ? pmd_devmap_trans_unstable+0x220/0x220
[  456.876431]  ? mark_held_locks+0x130/0x130
[  456.880691]  ? mark_held_locks+0x130/0x130
[  456.884948]  ? kasan_check_read+0x11/0x20
[  456.889136]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  456.894692]  __handle_mm_fault+0x3ea0/0x5be0
[  456.899095]  ? perf_trace_lock+0x7a0/0x7a0
[  456.903329]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  456.908193]  ? __switch_to_asm+0x34/0x70
[  456.912277]  ? __switch_to_asm+0x34/0x70
[  456.916346]  ? zap_class+0x640/0x640
[  456.920054]  ? zap_class+0x640/0x640
[  456.923761]  ? __x64_sys_futex+0x53e/0x6a0
[  456.927992]  ? find_held_lock+0x36/0x1c0
[  456.932054]  ? handle_mm_fault+0x42a/0xc70
[  456.936291]  ? lock_downgrade+0x900/0x900
[  456.940435]  ? check_preemption_disabled+0x48/0x280
[  456.945454]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  456.950380]  ? kasan_check_read+0x11/0x20
[  456.954541]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  456.959827]  ? rcu_softirq_qs+0x20/0x20
[  456.963902]  ? trace_hardirqs_off_caller+0x310/0x310
[  456.969002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  456.974533]  ? sync_mm_rss+0x9a/0x1c0
[  456.978334]  handle_mm_fault+0x54f/0xc70
[  456.982427]  ? __handle_mm_fault+0x5be0/0x5be0
[  456.987010]  ? find_vma+0x34/0x190
[  456.990550]  __do_page_fault+0x5e8/0xe60
[  456.994623]  ? trace_hardirqs_off+0xb8/0x310
[  456.999039]  do_page_fault+0xf2/0x7e0
[  457.002863]  ? vmalloc_sync_all+0x30/0x30
[  457.007023]  ? error_entry+0x70/0xd0
[  457.010734]  ? trace_hardirqs_off_caller+0xbb/0x310
[  457.015762]  ? trace_hardirqs_on_caller+0xc0/0x310
[  457.020704]  ? syscall_return_slowpath+0x5e0/0x5e0
[  457.025639]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.030479]  ? trace_hardirqs_on_caller+0x310/0x310
[  457.035485]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  457.040932]  ? prepare_exit_to_usermode+0x291/0x3b0
[  457.045948]  ? page_fault+0x8/0x30
[  457.049498]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.054336]  ? page_fault+0x8/0x30
[  457.057904]  page_fault+0x1e/0x30
[  457.061361] RIP: 0033:0x45ddf3
[  457.064559] Code: Bad RIP value.
[  457.067930] RSP: 002b:000000c420023ea0 EFLAGS: 00010202
[  457.073292] RAX: ffffffffffffff92 RBX: 000000003b97b89d RCX: 000000000045ddf3
[  457.081038] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000014fadc0
[  457.088316] RBP: 000000c420023ee8 R08: 0000000000000000 R09: 0000000000000000
[  457.095644] R10: 000000c420023ed8 R11: 0000000000000202 R12: 0000000000000001
[  457.102920] R13: 000000c42c3edd40 R14: 0000000000000001 R15: 0000000000000000
[  457.110224] CPU: 0 PID: 19389 Comm: syz-executor4 Not tainted 4.20.0-rc3+ #95
[  457.110228] warn_alloc_show_mem: 1 callbacks suppressed
[  457.110235] Mem-Info:
[  457.117622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  457.122989] active_anon:56208 inactive_anon:1280 isolated_anon:0
[  457.122989]  active_file:17 inactive_file:17 isolated_file:0
[  457.122989]  unevictable:0 dirty:4 writeback:0 unstable:0
[  457.122989]  slab_reclaimable:9482 slab_unreclaimable:1449936
[  457.122989]  mapped:49154 shmem:1326 pagetables:691 bounce:0
[  457.122989]  free:13550 free_pcp:124 free_cma:0
[  457.125361] Call Trace:
[  457.134770] Node 0 active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:16kB writeback:0kB shmem:5304kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 208896kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  457.167799]  <IRQ>
[  457.170363] 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
[  457.198120]  dump_stack+0x244/0x39d
[  457.200239] lowmem_reserve[]: 0 2818 6321 6321
[  457.226337]  ? dump_stack_print_info.cold.1+0x20/0x20
[  457.229956] Node 0 DMA32 free:24744kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  457.234552]  warn_alloc.cold.116+0xb7/0x1bd
[  457.239722] lowmem_reserve[]: 0 0 3503 3503
[  457.267071]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  457.271381] Node 0 Normal free:13548kB min:37364kB low:46704kB high:56044kB active_anon:224832kB inactive_anon:5120kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:16kB present:4718592kB managed:3587816kB mlocked:0kB kernel_stack:7040kB pagetables:2764kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  457.275697]  ? lock_downgrade+0x900/0x900
[  457.280530] lowmem_reserve[]: 0 0 0 0
[  457.309416]  ? trace_hardirqs_off+0xb8/0x310
[  457.313549] 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
[  457.317357]  ? trace_hardirqs_off+0xb8/0x310
[  457.321741] Node 0 DMA32: 2*4kB (M) 0*8kB 2*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24744kB
[  457.335263]  __alloc_pages_slowpath+0x2651/0x2de0
[  457.339672] Node 0 Normal: 810*4kB (UME) 432*8kB (ME) 159*16kB (UME) 66*32kB (UME) 20*64kB (M) 4*128kB (M) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13656kB
[  457.354432]  ? warn_alloc+0x120/0x120
[  457.359234] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  457.373959]  ? warn_alloc+0x120/0x120
[  457.377740] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  457.386567]  ? __lock_acquire+0x62f/0x4c20
[  457.390345] 1360 total pagecache pages
[  457.398908]  ? warn_alloc+0x120/0x120
[  457.403145] 0 pages in swap cache
[  457.407016]  ? print_usage_bug+0xc0/0xc0
[  457.410793] Swap cache stats: add 0, delete 0, find 0/0
[  457.414236]  ? print_usage_bug+0xc0/0xc0
[  457.418274] Free swap  = 0kB
[  457.423627]  ? mark_held_locks+0x130/0x130
[  457.427670] Total swap = 0kB
[  457.430686]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  457.434893] 1965979 pages RAM
[  457.437925]  ? should_fail+0x22d/0xd01
[  457.443434] 0 pages HighMem/MovableOnly
[  457.446536]  ? zap_class+0x640/0x640
[  457.450398] 342854 pages reserved
[  457.454370]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  457.458057] 0 pages cma reserved
[  457.461506]  ? __lock_acquire+0x62f/0x4c20
[  457.466767] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  457.469944]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  457.474159] syz-fuzzer cpuset=/ mems_allowed=0
[  457.484394]  ? should_fail+0x22d/0xd01
[  457.497985]  ? mark_held_locks+0x130/0x130
[  457.502231]  ? mark_held_locks+0x130/0x130
[  457.506470]  ? lock_downgrade+0x900/0x900
[  457.510643]  ? zap_class+0x640/0x640
[  457.514359]  ? zap_class+0x640/0x640
[  457.518094]  ? zap_class+0x640/0x640
[  457.521807]  ? do_raw_spin_unlock+0xa7/0x330
[  457.526221]  ? trace_hardirqs_on+0x310/0x310
[  457.530634]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.536187]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.541743]  ? check_preemption_disabled+0x48/0x280
[  457.546771]  ? __lock_is_held+0xb5/0x140
[  457.550840]  __alloc_pages_nodemask+0xad8/0xea0
[  457.555511]  ? zap_class+0x640/0x640
[  457.559249]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  457.564282]  ? find_held_lock+0x36/0x1c0
[  457.568375]  ? ____cache_alloc_node+0x1c7/0x1e0
[  457.573050]  ? lock_downgrade+0x900/0x900
[  457.577213]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.582793]  cache_grow_begin+0xa5/0x8c0
[  457.586854]  ? do_raw_spin_unlock+0xa7/0x330
[  457.591278]  fallback_alloc+0x204/0x2e0
[  457.595254]  ____cache_alloc_node+0x1c7/0x1e0
[  457.599755]  kmem_cache_alloc_node+0xe3/0x730
[  457.604252]  ? lockdep_hardirqs_on+0x296/0x5b0
[  457.608845]  __alloc_skb+0x119/0x770
[  457.612557]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  457.617934]  ? netdev_alloc_frag+0x1f0/0x1f0
[  457.622365]  ? vprintk_default+0x28/0x30
[  457.626427]  ? vprintk_func+0x85/0x181
[  457.630314]  ? printk+0xa7/0xcf
[  457.633592]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  457.638351]  new_skb+0x26/0x1c0
[  457.641630]  aoecmd_cfg+0x279/0x7f0
[  457.645269]  ? find_held_lock+0x36/0x1c0
[  457.649330]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  457.653744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.659290]  ? __lock_is_held+0xb5/0x140
[  457.663359]  discover_timer+0x50/0x60
[  457.667153]  call_timer_fn+0x272/0x920
[  457.671080]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  457.675920]  ? process_timeout+0x40/0x40
[  457.679991]  ? __run_timers+0x7da/0xc70
[  457.683991]  ? _raw_spin_unlock_irq+0x27/0x80
[  457.688479]  ? _raw_spin_unlock_irq+0x27/0x80
[  457.692988]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  457.697828]  ? lockdep_hardirqs_on+0x296/0x5b0
[  457.702427]  ? trace_hardirqs_on+0xbd/0x310
[  457.706756]  ? kasan_check_read+0x11/0x20
[  457.710901]  ? __run_timers+0x7da/0xc70
[  457.714873]  ? trace_hardirqs_off_caller+0x310/0x310
[  457.719984]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  457.724825]  __run_timers+0x7e5/0xc70
[  457.728676]  ? timer_fixup_init+0x70/0x70
[  457.732850]  ? kasan_check_read+0x11/0x20
[  457.736993]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  457.742279]  ? rcu_softirq_qs+0x20/0x20
[  457.746261]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.751814]  ? check_preemption_disabled+0x48/0x280
[  457.756866]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  457.761636]  ? retint_kernel+0x2d/0x2d
[  457.765519]  ? trace_hardirqs_on_caller+0xc0/0x310
[  457.770474]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  457.775243]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  457.780703]  ? zap_class+0x640/0x640
[  457.784426]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.789995]  ? check_preemption_disabled+0x48/0x280
[  457.795015]  ? __lock_is_held+0xb5/0x140
[  457.799073]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.804603]  ? check_preemption_disabled+0x48/0x280
[  457.809632]  run_timer_softirq+0x52/0xb0
[  457.813712]  ? rcu_read_lock_sched_held+0x14f/0x180
[  457.818724]  __do_softirq+0x308/0xb7e
[  457.822524]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  457.827012]  ? lock_downgrade+0x900/0x900
[  457.831160]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  457.836275]  ? pvclock_read_flags+0x160/0x160
[  457.840827]  ? lapic_next_event+0x5a/0x90
[  457.844989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.850546]  ? kvm_clock_read+0x18/0x30
[  457.854538]  ? kvm_sched_clock_read+0x9/0x20
[  457.858951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  457.864505]  ? check_preemption_disabled+0x48/0x280
[  457.869549]  irq_exit+0x17f/0x1c0
[  457.873007]  smp_apic_timer_interrupt+0x1cb/0x760
[  457.877847]  ? smp_reschedule_interrupt+0x109/0x650
[  457.882870]  ? smp_call_function_single_interrupt+0x650/0x650
[  457.888751]  ? interrupt_entry+0xb5/0xc0
[  457.892813]  ? trace_hardirqs_off_caller+0xbb/0x310
[  457.897844]  ? trace_hardirqs_off_caller+0xbb/0x310
[  457.902878]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.907726]  ? trace_hardirqs_on_caller+0x310/0x310
[  457.912761]  ? trace_hardirqs_on_caller+0x310/0x310
[  457.917776]  ? task_prio+0x50/0x50
[  457.921328]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  457.926869]  ? check_preemption_disabled+0x48/0x280
[  457.931887]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  457.936740]  apic_timer_interrupt+0xf/0x20
[  457.941010]  </IRQ>
[  457.943261] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  457.948190] Code: 7e 0f 85 cf fe ff ff e8 f6 f0 3d ff e9 c5 fe ff ff e8 9d 26 c3 ff 48 83 3d 35 6f 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 5a bd
[  457.967098] RSP: 0000:ffff8881962576f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  457.974799] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  457.982077] RDX: 0000000000000000 RSI: ffff88818e820c80 RDI: 0000000000000286
[  457.989342] RBP: ffff888196257760 R08: ffff88818e820400 R09: 0000000000000000
[  457.996606] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  458.003880] R13: ffff8881d9a1c0c0 R14: ffff8881d9a1c0c0 R15: 0000000000480020
[  458.011186]  skb_clone+0x1bb/0x500
[  458.014725]  ? skb_split+0x11e0/0x11e0
[  458.018612]  ? preempt_notifier_register+0x200/0x200
[  458.023716]  ? __switch_to_asm+0x34/0x70
[  458.027773]  ? __switch_to_asm+0x34/0x70
[  458.031878]  ? __switch_to_asm+0x40/0x70
[  458.035945]  ? __switch_to_asm+0x34/0x70
[  458.040004]  ? __switch_to_asm+0x40/0x70
[  458.044058]  ? __switch_to_asm+0x40/0x70
[  458.048111]  ? __switch_to_asm+0x34/0x70
[  458.052173]  ? __switch_to_asm+0x34/0x70
[  458.056228]  ? __switch_to_asm+0x40/0x70
[  458.060282]  ? __switch_to_asm+0x34/0x70
[  458.064345]  bpf_clone_redirect+0xb9/0x490
[  458.068599]  bpf_prog_bebbfe2050753572+0x90e/0x1000
[  458.073659]  ? __sched_text_start+0x8/0x8
[  458.077832]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  458.082593]  ? find_held_lock+0x36/0x1c0
[  458.086691]  ? lock_acquire+0x1ed/0x520
[  458.090663]  ? bpf_test_run+0x3ee/0x7a0
[  458.094637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.100214]  ? check_preemption_disabled+0x48/0x280
[  458.105249]  ? kasan_check_read+0x11/0x20
[  458.109396]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  458.114669]  ? rcu_softirq_qs+0x20/0x20
[  458.118645]  ? preempt_schedule+0x4d/0x60
[  458.122813]  ? ___preempt_schedule+0x16/0x18
[  458.127270]  ? bpf_test_run+0x271/0x7a0
[  458.131265]  ? netlink_diag_dump+0x2a0/0x2a0
[  458.135679]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.141243]  ? bpf_test_init.isra.10+0x70/0x100
[  458.145910]  ? bpf_prog_test_run_skb+0x762/0xd60
[  458.150683]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  458.155544]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  458.161077]  ? fput+0x130/0x1a0
[  458.164364]  ? __bpf_prog_get+0x9b/0x290
[  458.168431]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  458.173276]  ? bpf_prog_test_run+0x130/0x1a0
[  458.177689]  ? __x64_sys_bpf+0x3d8/0x520
[  458.181749]  ? bpf_prog_get+0x20/0x20
[  458.185598]  ? do_syscall_64+0x1b9/0x820
[  458.189669]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  458.195050]  ? syscall_return_slowpath+0x5e0/0x5e0
[  458.199979]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.204821]  ? trace_hardirqs_on_caller+0x310/0x310
[  458.209848]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  458.214865]  ? prepare_exit_to_usermode+0x291/0x3b0
[  458.219901]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.224761]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  458.230155] CPU: 1 PID: 6038 Comm: syz-fuzzer Not tainted 4.20.0-rc3+ #95
[  458.230249] aoe: skb alloc failure
[  458.237094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  458.237099] Call Trace:
[  458.237104]  <IRQ>
[  458.237120]  dump_stack+0x244/0x39d
[  458.237139]  ? dump_stack_print_info.cold.1+0x20/0x20
[  458.240707] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  458.250034]  warn_alloc.cold.116+0xb7/0x1bd
[  458.252586] syz-executor4 cpuset=syz4 mems_allowed=0
[  458.254727]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  458.288228]  ? lock_downgrade+0x900/0x900
[  458.292413]  ? trace_hardirqs_off+0xb8/0x310
[  458.296853]  ? trace_hardirqs_off+0xb8/0x310
[  458.301284]  __alloc_pages_slowpath+0x2651/0x2de0
[  458.306144]  ? warn_alloc+0x120/0x120
[  458.309953]  ? warn_alloc+0x120/0x120
[  458.313755]  ? warn_alloc+0x120/0x120
[  458.317566]  ? print_usage_bug+0xc0/0xc0
[  458.321627]  ? print_usage_bug+0xc0/0xc0
[  458.325692]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.331225]  ? should_fail+0x22d/0xd01
[  458.335113]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  458.340211]  ? __lock_acquire+0x62f/0x4c20
[  458.344444]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  458.349542]  ? should_fail+0x22d/0xd01
[  458.353432]  ? mark_held_locks+0x130/0x130
[  458.357664]  ? mark_held_locks+0x130/0x130
[  458.361890]  ? print_usage_bug+0xc0/0xc0
[  458.365952]  ? find_held_lock+0x36/0x1c0
[  458.370008]  ? zap_class+0x640/0x640
[  458.373750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.379291]  ? check_preemption_disabled+0x48/0x280
[  458.384310]  ? __lock_is_held+0xb5/0x140
[  458.388380]  __alloc_pages_nodemask+0xad8/0xea0
[  458.393043]  ? zap_class+0x640/0x640
[  458.396751]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  458.401779]  ? find_held_lock+0x36/0x1c0
[  458.405861]  ? ____cache_alloc_node+0x1c7/0x1e0
[  458.410559]  ? lock_downgrade+0x900/0x900
[  458.414721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.420275]  cache_grow_begin+0xa5/0x8c0
[  458.424358]  ? do_raw_spin_unlock+0xa7/0x330
[  458.428799]  fallback_alloc+0x204/0x2e0
[  458.432804]  ____cache_alloc_node+0x1c7/0x1e0
[  458.437317]  kmem_cache_alloc_node+0xe3/0x730
[  458.441808]  ? mark_held_locks+0xc7/0x130
[  458.445995]  __alloc_skb+0x119/0x770
[  458.449705]  ? netdev_alloc_frag+0x1f0/0x1f0
[  458.454105]  ? do_raw_spin_trylock+0x270/0x270
[  458.458692]  ? kmem_cache_alloc_trace+0x353/0x750
[  458.463540]  ? queue_work_on+0x12c/0x1e0
[  458.467615]  ? switchdev_port_obj_del+0xdc/0x440
[  458.472363]  ? switchdev_trans_item_enqueue+0x260/0x260
[  458.477726]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  458.482744]  __br_mdb_notify+0x4ff/0x15d0
[  458.486897]  ? __br_mdb_add+0x7f0/0x7f0
[  458.490875]  ? zap_class+0x640/0x640
[  458.494590]  ? br_multicast_group_expired+0x96/0x610
[  458.499696]  br_mdb_notify+0x310/0x410
[  458.503580]  ? br_mdb_dump+0x27b0/0x27b0
[  458.507640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.513186]  br_multicast_group_expired+0x1bc/0x610
[  458.518209]  ? br_mdb_free+0x80/0x80
[  458.521947]  call_timer_fn+0x272/0x920
[  458.525829]  ? br_mdb_free+0x80/0x80
[  458.529558]  ? process_timeout+0x40/0x40
[  458.533628]  ? mark_held_locks+0xc7/0x130
[  458.537791]  ? _raw_spin_unlock_irq+0x27/0x80
[  458.542287]  ? _raw_spin_unlock_irq+0x27/0x80
[  458.546781]  ? br_mdb_free+0x80/0x80
[  458.550496]  ? lockdep_hardirqs_on+0x296/0x5b0
[  458.555081]  ? trace_hardirqs_on+0xbd/0x310
[  458.559406]  ? kasan_check_read+0x11/0x20
[  458.563565]  ? __run_timers+0x7da/0xc70
[  458.567540]  ? trace_hardirqs_off_caller+0x310/0x310
[  458.572653]  ? br_multicast_del_pg+0x790/0x790
[  458.577246]  ? br_mdb_free+0x80/0x80
[  458.580965]  __run_timers+0x7e5/0xc70
[  458.584777]  ? timer_fixup_init+0x70/0x70
[  458.588928]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  458.593964]  ? zap_class+0x640/0x640
[  458.597682]  ? print_usage_bug+0xc0/0xc0
[  458.601746]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  458.606951]  ? find_held_lock+0x36/0x1c0
[  458.611017]  ? zap_class+0x640/0x640
[  458.614751]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.620294]  ? check_preemption_disabled+0x48/0x280
[  458.625323]  ? __lock_is_held+0xb5/0x140
[  458.629388]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.634929]  ? check_preemption_disabled+0x48/0x280
[  458.639967]  run_timer_softirq+0x52/0xb0
[  458.644032]  ? rcu_read_lock_sched_held+0x14f/0x180
[  458.649051]  __do_softirq+0x308/0xb7e
[  458.652869]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  458.657381]  ? lock_downgrade+0x900/0x900
[  458.661534]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  458.666665]  ? pvclock_read_flags+0x160/0x160
[  458.671163]  ? lapic_next_event+0x5a/0x90
[  458.675329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.680890]  ? kvm_clock_read+0x18/0x30
[  458.684878]  ? kvm_sched_clock_read+0x9/0x20
[  458.689292]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  458.694831]  ? check_preemption_disabled+0x48/0x280
[  458.699856]  irq_exit+0x17f/0x1c0
[  458.703310]  smp_apic_timer_interrupt+0x1cb/0x760
[  458.708190]  ? smp_reschedule_interrupt+0x109/0x650
[  458.713211]  ? smp_call_function_single_interrupt+0x650/0x650
[  458.719097]  ? interrupt_entry+0xb5/0xc0
[  458.723161]  ? trace_hardirqs_off_caller+0xbb/0x310
[  458.728192]  ? trace_hardirqs_off_caller+0xbb/0x310
[  458.733209]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.738052]  ? trace_hardirqs_on_caller+0x310/0x310
[  458.743065]  ? trace_hardirqs_on_caller+0x310/0x310
[  458.748083]  ? task_prio+0x50/0x50
[  458.751628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  458.757176]  ? check_preemption_disabled+0x48/0x280
[  458.762211]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  458.767056]  apic_timer_interrupt+0xf/0x20
[  458.771279]  </IRQ>
[  458.773514] RIP: 0010:lock_acquire+0x268/0x520
[  458.778095] Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 77 1f f0 07 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00
[  458.796987] RSP: 0000:ffff8881cd3f6158 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  458.804715] RAX: dffffc0000000000 RBX: 1ffff11039a7ec30 RCX: 0000000000000000
[  458.811987] RDX: 1ffffffff12a3f6e RSI: 0000000000000000 RDI: 0000000000000286
[  458.819281] RBP: ffff8881cd3f6248 R08: ffff8881c137ee98 R09: 0000000000000008
[  458.826579] R10: 0000000000000078 R11: ffff8881c137e580 R12: ffff8881c137e580
[  458.833876] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[  458.841160]  ? lruvec_lru_size+0x450/0x450
[  458.845396]  ? kasan_check_read+0x11/0x20
[  458.849561]  ? lock_release+0xa00/0xa00
[  458.853535]  ? throttle_direct_reclaim+0x9e0/0x9e0
[  458.858508]  down_read_trylock+0xda/0x140
[  458.862650]  ? shrink_slab+0x207/0x8c0
[  458.866532]  ? downgrade_write+0x270/0x270
[  458.870770]  shrink_slab+0x207/0x8c0
[  458.874495]  ? shrink_active_list+0x1f00/0x1f00
[  458.879165]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  458.884791]  ? __lock_acquire+0x62f/0x4c20
[  458.889048]  ? percpu_ref_get_many+0x240/0x240
[  458.893671]  ? print_usage_bug+0xc0/0xc0
[  458.897737]  shrink_node+0x431/0x16b0
[  458.901536]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  458.906889]  ? shrink_node_memcg+0x18f0/0x18f0
[  458.911490]  ? kvm_clock_read+0x18/0x30
[  458.915477]  ? ktime_get+0x2c1/0x400
[  458.919213]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  458.923721]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  458.929269]  ? __cpuset_node_allowed+0x19b/0x660
[  458.934021]  ? mark_held_locks+0x130/0x130
[  458.938289]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  458.944042]  ? zap_class+0x640/0x640
[  458.947785]  do_try_to_free_pages+0x3e7/0x1290
[  458.952584]  ? zap_class+0x640/0x640
[  458.956325]  ? shrink_node+0x16b0/0x16b0
[  458.960386]  ? __lock_is_held+0xb5/0x140
[  458.964457]  try_to_free_pages+0x4d0/0xb90
[  458.968722]  ? do_try_to_free_pages+0x1290/0x1290
[  458.973574]  ? lock_acquire+0x1ed/0x520
[  458.977542]  ? set_page_refcounted+0x280/0x280
[  458.982139]  ? lock_release+0xa00/0xa00
[  458.986129]  ? _raw_spin_unlock_irq+0x60/0x80
[  458.990656]  ? psi_memstall_enter+0x240/0x2b0
[  458.995148]  ? psi_memstall_tick+0x230/0x230
[  458.999572]  __alloc_pages_slowpath+0xa48/0x2de0
[  459.004394]  ? warn_alloc+0x120/0x120
[  459.008214]  ? mark_held_locks+0x130/0x130
[  459.012449]  ? find_get_entry+0xaae/0x1120
[  459.016700]  ? filemap_map_pages+0x1a20/0x1a20
[  459.021304]  ? zap_class+0x640/0x640
[  459.025036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  459.030576]  ? check_preemption_disabled+0x48/0x280
[  459.035614]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  459.041184]  ? should_fail+0x22d/0xd01
[  459.045071]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  459.050177]  ? zap_class+0x640/0x640
[  459.053906]  ? __lock_is_held+0xb5/0x140
[  459.057971]  ? mark_held_locks+0x130/0x130
[  459.062206]  ? lock_release+0xa00/0xa00
[  459.066182]  ? perf_trace_sched_process_exec+0x860/0x860
[  459.071629]  ? xa_load+0x2ba/0x460
[  459.075204]  ? lock_downgrade+0x900/0x900
[  459.079360]  ? __might_sleep+0x95/0x190
[  459.083820]  __alloc_pages_nodemask+0xad8/0xea0
[  459.088510]  ? __alloc_pages_slowpath+0x2de0/0x2de0
[  459.093552]  ? __page_cache_alloc+0x191/0x5c0
[  459.098082]  ? xa_load+0x2e1/0x460
[  459.101634]  ? xa_clear_mark+0x40/0x40
[  459.105535]  ? zap_class+0x640/0x640
[  459.109266]  ? zap_class+0x640/0x640
[  459.112972]  ? zap_class+0x640/0x640
[  459.116676]  ? __do_page_cache_readahead+0x663/0x810
[  459.121806]  ? find_held_lock+0x36/0x1c0
[  459.125898]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  459.131444]  alloc_pages_current+0x173/0x350
[  459.135866]  __page_cache_alloc+0x38c/0x5c0
[  459.140186]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  459.145137]  ? kasan_check_read+0x11/0x20
[  459.149303]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  459.154615]  ? generic_perform_write+0x6a0/0x6a0