0x900/0x900
[  236.808143]  ? check_preemption_disabled+0x48/0x280
[  236.813204]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.818135]  ? kasan_check_read+0x11/0x20
[  236.822280]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.827565]  ? rcu_softirq_qs+0x20/0x20
[  236.831564]  ? trace_hardirqs_off_caller+0x310/0x310
[  236.836665]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.842199]  ? check_preemption_disabled+0x48/0x280
[  236.847218]  handle_mm_fault+0x54f/0xc70
[  236.851283]  ? __handle_mm_fault+0x5be0/0x5be0
[  236.855869]  ? find_vma+0x34/0x190
[  236.859419]  __do_page_fault+0x5e8/0xe60
[  236.863483]  ? exit_to_usermode_loop+0x1f4/0x380
[  236.868249]  do_page_fault+0xf2/0x7e0
[  236.872050]  ? vmalloc_sync_all+0x30/0x30
[  236.876195]  ? error_entry+0x70/0xd0
[  236.879936]  ? trace_hardirqs_off_caller+0xbb/0x310
[  236.884948]  ? trace_hardirqs_on_caller+0xc0/0x310
[  236.889921]  ? syscall_return_slowpath+0x5e0/0x5e0
[  236.894880]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  236.899722]  ? trace_hardirqs_on_caller+0x310/0x310
[  236.904733]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  236.910186]  ? prepare_exit_to_usermode+0x291/0x3b0
[  236.915230]  ? page_fault+0x8/0x30
[  236.918785]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  236.923634]  ? page_fault+0x8/0x30
[  236.927200]  page_fault+0x1e/0x30
[  236.930661] RIP: 0033:0x45db60
[  236.933864] Code: Bad RIP value.
[  236.937224] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  236.942579] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  236.949850] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  236.957122] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  236.964411] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  236.971674] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  236.978954] warn_alloc_show_mem: 1 callbacks suppressed
[  236.978966] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  236.978967] Mem-Info:
[  236.978995] active_anon:54051 inactive_anon:192 isolated_anon:0
[  236.978995]  active_file:9 inactive_file:20 isolated_file:0
[  236.978995]  unevictable:0 dirty:0 writeback:0 unstable:0
[  236.978995]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  236.978995]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  236.978995]  free:13735 free_pcp:540 free_cma:0
[  236.984362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  236.991654] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  236.994048] Call Trace:
[  237.026836] 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
[  237.036178]  <IRQ>
[  237.063566] lowmem_reserve[]: 0 2818 6321 6321
[  237.066159]  dump_stack+0x244/0x39d
[  237.092241] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  237.094407]  ? dump_stack_print_info.cold.1+0x20/0x20
[  237.098961] lowmem_reserve[]: 0 0 3503 3503
[  237.102590]  warn_alloc.cold.116+0xb7/0x1bd
[  237.130333] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  237.135526]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  237.139826] lowmem_reserve[]: 0 0 0 0
[  237.144159]  ? lock_downgrade+0x900/0x900
[  237.173206] 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
[  237.178044]  ? trace_hardirqs_off+0xb8/0x310
[  237.181814] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  237.185962]  ? trace_hardirqs_off+0xb8/0x310
[  237.199461] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  237.203868]  __alloc_pages_slowpath+0x26e8/0x2e10
[  237.219101] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  237.223521]  ? warn_alloc+0x120/0x120
[  237.237624] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  237.242449]  ? print_usage_bug+0xc0/0xc0
[  237.251260] 273 total pagecache pages
[  237.255046]  ? warn_alloc+0x120/0x120
[  237.263628] 0 pages in swap cache
[  237.267669]  ? warn_alloc+0x120/0x120
[  237.271451] Swap cache stats: add 0, delete 0, find 0/0
[  237.275239]  ? print_usage_bug+0xc0/0xc0
[  237.278672] Free swap  = 0kB
[  237.282464]  ? kvm_clock_read+0x18/0x30
[  237.287808] Total swap = 0kB
[  237.291958]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  237.294949] 1965979 pages RAM
[  237.298971]  ? print_usage_bug+0xc0/0xc0
[  237.301995] 0 pages HighMem/MovableOnly
[  237.307002]  ? __lock_acquire+0x62f/0x4c20
[  237.310081] 342853 pages reserved
[  237.314134]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.318076] 0 pages cma reserved
[  237.322317]  ? should_fail+0x22d/0xd01
[  237.326060] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  237.331270]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.334617] syz-fuzzer cpuset=/ mems_allowed=0
[  237.338497]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.363662]  ? __lock_acquire+0x62f/0x4c20
[  237.367901]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.373003]  ? __lock_acquire+0x62f/0x4c20
[  237.377240]  ? should_fail+0x22d/0xd01
[  237.381130]  ? rcu_irq_exit+0x1a2/0x390
[  237.385137]  ? mark_held_locks+0x130/0x130
[  237.389377]  ? mark_held_locks+0x130/0x130
[  237.393648]  ? mark_held_locks+0xc7/0x130
[  237.397800]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  237.402828]  ? zap_class+0x640/0x640
[  237.406558]  ? print_usage_bug+0xc0/0xc0
[  237.410624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.416167]  ? check_preemption_disabled+0x48/0x280
[  237.421195]  ? __lock_is_held+0xb5/0x140
[  237.425264]  __alloc_pages_nodemask+0xa80/0xde0
[  237.429933]  ? zap_class+0x640/0x640
[  237.433653]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  237.438682]  ? find_held_lock+0x36/0x1c0
[  237.442753]  ? ____cache_alloc_node+0x1c7/0x1e0
[  237.447424]  ? lock_downgrade+0x900/0x900
[  237.451583]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.457137]  cache_grow_begin+0xa5/0x8c0
[  237.461213]  ? do_raw_spin_unlock+0xa7/0x330
[  237.465726]  fallback_alloc+0x204/0x2e0
[  237.469734]  ____cache_alloc_node+0x1c7/0x1e0
[  237.474256]  kmem_cache_alloc_node+0xe3/0x730
[  237.478754]  ? ipv6_get_ifaddr+0x42e/0x620
[  237.483001]  __alloc_skb+0x119/0x770
[  237.486714]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.491997]  ? netdev_alloc_frag+0x1f0/0x1f0
[  237.496420]  ? lock_downgrade+0x900/0x900
[  237.500573]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.506119]  ? refcount_sub_and_test_checked+0x203/0x310
[  237.511574]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  237.517019]  ? addrconf_rs_timer+0x690/0x690
[  237.521432]  ndisc_alloc_skb+0x144/0x340
[  237.525491]  ndisc_send_rs+0x331/0x6e0
[  237.529376]  addrconf_rs_timer+0x314/0x690
[  237.533611]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.537902]  call_timer_fn+0x272/0x920
[  237.541800]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.546037]  ? process_timeout+0x40/0x40
[  237.550096]  ? __run_timers+0x7da/0xc70
[  237.554068]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.558558]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.563055]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.567284]  ? lockdep_hardirqs_on+0x296/0x5b0
[  237.571869]  ? trace_hardirqs_on+0xbd/0x310
[  237.576242]  ? kasan_check_read+0x11/0x20
[  237.580400]  ? __run_timers+0x7da/0xc70
[  237.584369]  ? trace_hardirqs_off_caller+0x310/0x310
[  237.589475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.593713]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.597943]  __run_timers+0x7e5/0xc70
[  237.601752]  ? timer_fixup_init+0x70/0x70
[  237.605906]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  237.610928]  ? zap_class+0x640/0x640
[  237.614662]  ? enqueue_hrtimer+0x1a5/0x560
[  237.618900]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  237.624096]  ? find_held_lock+0x36/0x1c0
[  237.628164]  ? zap_class+0x640/0x640
[  237.631898]  ? pvclock_read_flags+0x160/0x160
[  237.636411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.641973]  ? check_preemption_disabled+0x48/0x280
[  237.646999]  ? __lock_is_held+0xb5/0x140
[  237.651063]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.656608]  ? check_preemption_disabled+0x48/0x280
[  237.661632]  run_timer_softirq+0x52/0xb0
[  237.665697]  ? rcu_read_lock_sched_held+0x14f/0x180
[  237.670713]  __do_softirq+0x308/0xb7e
[  237.674515]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  237.679020]  ? lock_downgrade+0x900/0x900
[  237.683175]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  237.688285]  ? pvclock_read_flags+0x160/0x160
[  237.692796]  ? lapic_next_event+0x5a/0x90
[  237.696949]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.702489]  ? kvm_clock_read+0x18/0x30
[  237.706464]  ? kvm_sched_clock_read+0x9/0x20
[  237.710874]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.716412]  ? check_preemption_disabled+0x48/0x280
[  237.721453]  irq_exit+0x17f/0x1c0
[  237.724910]  smp_apic_timer_interrupt+0x1cb/0x760
[  237.729783]  ? smp_reschedule_interrupt+0x109/0x650
[  237.734795]  ? smp_call_function_single_interrupt+0x650/0x650
[  237.740684]  ? interrupt_entry+0xb5/0xc0
[  237.744918]  ? trace_hardirqs_off_caller+0xbb/0x310
[  237.749935]  ? trace_hardirqs_off_caller+0xbb/0x310
[  237.754952]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  237.759810]  ? trace_hardirqs_on_caller+0x310/0x310
[  237.764837]  ? trace_hardirqs_on_caller+0x310/0x310
[  237.769855]  ? task_prio+0x50/0x50
[  237.773395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.778935]  ? check_preemption_disabled+0x48/0x280
[  237.783966]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  237.788811]  apic_timer_interrupt+0xf/0x20
[  237.793056]  </IRQ>
[  237.795292] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  237.800216] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  237.819111] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  237.826825] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  237.834089] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  237.841374] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  237.848638] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  237.855903] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  237.863214]  skb_clone+0x1bb/0x500
[  237.866764]  ? finish_task_switch+0x2f4/0x910
[  237.871274]  ? skb_split+0x11e0/0x11e0
[  237.875325]  ? preempt_notifier_register+0x200/0x200
[  237.880439]  ? __switch_to_asm+0x34/0x70
[  237.884502]  ? __switch_to_asm+0x34/0x70
[  237.888578]  ? __switch_to_asm+0x40/0x70
[  237.892635]  ? __switch_to_asm+0x34/0x70
[  237.896691]  ? __switch_to_asm+0x40/0x70
[  237.900745]  ? __switch_to_asm+0x34/0x70
[  237.904813]  ? __switch_to_asm+0x40/0x70
[  237.908876]  ? __switch_to_asm+0x34/0x70
[  237.912978]  ? __switch_to_asm+0x34/0x70
[  237.917033]  ? __switch_to_asm+0x40/0x70
[  237.921091]  ? __switch_to_asm+0x34/0x70
[  237.925200]  bpf_clone_redirect+0xb9/0x490
[  237.929461]  ? __schedule+0x8d7/0x21d0
[  237.933353]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  237.938371]  ? __sched_text_start+0x8/0x8
[  237.942515]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  237.947278]  ? find_held_lock+0x36/0x1c0
[  237.951355]  ? lock_acquire+0x1ed/0x520
[  237.955324]  ? bpf_test_run+0x3cb/0x780
[  237.959291]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.964842]  ? check_preemption_disabled+0x48/0x280
[  237.969857]  ? kasan_check_read+0x11/0x20
[  237.973999]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.979270]  ? rcu_softirq_qs+0x20/0x20
[  237.983237]  ? preempt_schedule+0x4d/0x60
[  237.987379]  ? ___preempt_schedule+0x16/0x18
[  237.991787]  ? bpf_test_run+0x25d/0x780
[  237.995779]  ? netlink_diag_dump+0x2a0/0x2a0
[  238.000209]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.005773]  ? bpf_test_init.isra.10+0x70/0x100
[  238.010446]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  238.015210]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  238.020046]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  238.025583]  ? fput+0x130/0x1a0
[  238.028861]  ? __bpf_prog_get+0x9b/0x290
[  238.032916]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  238.037754]  ? bpf_prog_test_run+0x130/0x1a0
[  238.042160]  ? __x64_sys_bpf+0x3d8/0x520
[  238.046218]  ? bpf_prog_get+0x20/0x20
[  238.050040]  ? do_syscall_64+0x1b9/0x820
[  238.054129]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  238.059517]  ? syscall_return_slowpath+0x5e0/0x5e0
[  238.064507]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.069522]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  238.074548]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  238.081224]  ? __switch_to_asm+0x40/0x70
[  238.085281]  ? __switch_to_asm+0x34/0x70
[  238.089366]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.094213]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  238.099597] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  238.099694] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  238.106670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  238.106690] Call Trace:
[  238.106696]  <IRQ>
[  238.106713]  dump_stack+0x244/0x39d
[  238.106731]  ? dump_stack_print_info.cold.1+0x20/0x20
[  238.113296] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  238.122558]  warn_alloc.cold.116+0xb7/0x1bd
[  238.125111] syz-executor3 cpuset=syz3 mems_allowed=0
[  238.127270]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  238.160745]  ? lock_downgrade+0x900/0x900
[  238.164897]  ? trace_hardirqs_off+0xb8/0x310
[  238.169311]  ? trace_hardirqs_off+0xb8/0x310
[  238.173741]  __alloc_pages_slowpath+0x26e8/0x2e10
[  238.178629]  ? warn_alloc+0x120/0x120
[  238.182442]  ? print_usage_bug+0xc0/0xc0
[  238.186520]  ? warn_alloc+0x120/0x120
[  238.190327]  ? warn_alloc+0x120/0x120
[  238.194132]  ? print_usage_bug+0xc0/0xc0
[  238.198200]  ? print_usage_bug+0xc0/0xc0
[  238.202261]  ? __lock_acquire+0x62f/0x4c20
[  238.206522]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.212075]  ? should_fail+0x22d/0xd01
[  238.215965]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  238.221066]  ? __lock_acquire+0x62f/0x4c20
[  238.225306]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  238.230404]  ? __lock_acquire+0x62f/0x4c20
[  238.234640]  ? should_fail+0x22d/0xd01
[  238.238539]  ? mark_held_locks+0x130/0x130
[  238.242794]  ? mark_held_locks+0x130/0x130
[  238.247039]  ? try_to_wake_up+0x11c/0x1490
[  238.251272]  ? lock_downgrade+0x900/0x900
[  238.255427]  ? zap_class+0x640/0x640
[  238.259142]  ? print_usage_bug+0xc0/0xc0
[  238.263197]  ? trace_hardirqs_off+0xb8/0x310
[  238.267621]  ? kasan_check_read+0x11/0x20
[  238.271766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.277318]  ? check_preemption_disabled+0x48/0x280
[  238.282338]  ? __lock_is_held+0xb5/0x140
[  238.286403]  __alloc_pages_nodemask+0xa80/0xde0
[  238.291084]  ? zap_class+0x640/0x640
[  238.294801]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  238.299874]  ? find_held_lock+0x36/0x1c0
[  238.303961]  ? ____cache_alloc_node+0x1c7/0x1e0
[  238.308634]  ? lock_downgrade+0x900/0x900
[  238.312787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.318346]  cache_grow_begin+0xa5/0x8c0
[  238.322441]  ? do_raw_spin_unlock+0xa7/0x330
[  238.326893]  fallback_alloc+0x204/0x2e0
[  238.330884]  ____cache_alloc_node+0x1c7/0x1e0
[  238.335377]  kmem_cache_alloc_node+0xe3/0x730
[  238.339885]  ? ipv6_get_ifaddr+0x42e/0x620
[  238.344141]  __alloc_skb+0x119/0x770
[  238.347869]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.353170]  ? netdev_alloc_frag+0x1f0/0x1f0
[  238.357590]  ? lock_downgrade+0x900/0x900
[  238.361745]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.367276]  ? refcount_sub_and_test_checked+0x203/0x310
[  238.372723]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  238.378174]  ? addrconf_rs_timer+0x690/0x690
[  238.382590]  ndisc_alloc_skb+0x144/0x340
[  238.386651]  ndisc_send_rs+0x331/0x6e0
[  238.390539]  addrconf_rs_timer+0x314/0x690
[  238.394803]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.399066]  call_timer_fn+0x272/0x920
[  238.402980]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.407213]  ? process_timeout+0x40/0x40
[  238.411280]  ? mark_held_locks+0xc7/0x130
[  238.415431]  ? _raw_spin_unlock_irq+0x27/0x80
[  238.419920]  ? _raw_spin_unlock_irq+0x27/0x80
[  238.424417]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.428666]  ? lockdep_hardirqs_on+0x296/0x5b0
[  238.433247]  ? trace_hardirqs_on+0xbd/0x310
[  238.437566]  ? kasan_check_read+0x11/0x20
[  238.441711]  ? __run_timers+0x7da/0xc70
[  238.445699]  ? trace_hardirqs_off_caller+0x310/0x310
[  238.450814]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.455058]  __run_timers+0x7e5/0xc70
[  238.458865]  ? timer_fixup_init+0x70/0x70
[  238.463012]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  238.468026]  ? zap_class+0x640/0x640
[  238.471747]  ? print_usage_bug+0xc0/0xc0
[  238.475806]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  238.481003]  ? find_held_lock+0x36/0x1c0
[  238.485063]  ? zap_class+0x640/0x640
[  238.488794]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.494338]  ? check_preemption_disabled+0x48/0x280
[  238.499375]  ? __lock_is_held+0xb5/0x140
[  238.503454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.509004]  ? check_preemption_disabled+0x48/0x280
[  238.514027]  run_timer_softirq+0x52/0xb0
[  238.518084]  ? rcu_read_lock_sched_held+0x14f/0x180
[  238.523112]  __do_softirq+0x308/0xb7e
[  238.526915]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  238.531404]  ? lock_downgrade+0x900/0x900
[  238.535549]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  238.540683]  ? pvclock_read_flags+0x160/0x160
[  238.545186]  ? lapic_next_event+0x5a/0x90
[  238.549331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.554872]  ? kvm_clock_read+0x18/0x30
[  238.558849]  ? kvm_sched_clock_read+0x9/0x20
[  238.563262]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.568801]  ? check_preemption_disabled+0x48/0x280
[  238.573840]  irq_exit+0x17f/0x1c0
[  238.577295]  smp_apic_timer_interrupt+0x1cb/0x760
[  238.582133]  ? smp_reschedule_interrupt+0x109/0x650
[  238.587150]  ? smp_call_function_single_interrupt+0x650/0x650
[  238.593030]  ? interrupt_entry+0xb5/0xc0
[  238.597093]  ? trace_hardirqs_off_caller+0xbb/0x310
[  238.602106]  ? trace_hardirqs_off_caller+0xbb/0x310
[  238.607126]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.611968]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.616985]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.622015]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.626863]  apic_timer_interrupt+0xf/0x20
[  238.631089]  </IRQ>
[  238.633329] RIP: 0010:dump_stack+0x358/0x39d
[  238.637740] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  238.656639] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  238.664350] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  238.671620] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  238.678887] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  238.686152] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  238.693419] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  238.700716]  ? dump_stack+0x34f/0x39d
[  238.704531]  ? dump_stack_print_info.cold.1+0x20/0x20
[  238.709725]  ? mark_held_locks+0x130/0x130
[  238.713962]  ? mark_held_locks+0x130/0x130
[  238.718203]  dump_header+0x27b/0xf72
[  238.721932]  ? pagefault_out_of_memory+0x197/0x197
[  238.726873]  ? __lock_acquire+0x62f/0x4c20
[  238.731124]  ? percpu_ref_get_many+0x240/0x240
[  238.735709]  ? print_usage_bug+0xc0/0xc0
[  238.739775]  ? zap_class+0x640/0x640
[  238.743491]  ? print_usage_bug+0xc0/0xc0
[  238.747553]  ? print_usage_bug+0xc0/0xc0
[  238.751612]  ? zap_class+0x640/0x640
[  238.755355]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.760911]  ? find_held_lock+0x36/0x1c0
[  238.764981]  ? mark_held_locks+0xc7/0x130
[  238.769128]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  238.774232]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  238.779342]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  238.783939]  ? trace_hardirqs_on+0xbd/0x310
[  238.788260]  ? kasan_check_read+0x11/0x20
[  238.792419]  ? ___ratelimit+0x3b4/0x672
[  238.796410]  ? trace_hardirqs_off_caller+0x310/0x310
[  238.801511]  ? trace_hardirqs_on+0x310/0x310
[  238.805917]  ? lock_downgrade+0x900/0x900
[  238.810063]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  238.815175]  ? ___ratelimit+0x3b9/0x672
[  238.819159]  ? idr_get_free+0xf70/0xf70
[  238.823160]  ? find_held_lock+0x36/0x1c0
[  238.827232]  oom_kill_process.cold.27+0x10/0x903
[  238.831988]  ? zap_class+0x640/0x640
[  238.835702]  ? check_preemption_disabled+0x48/0x280
[  238.840719]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  238.845651]  ? kasan_check_read+0x11/0x20
[  238.849801]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.855101]  ? oom_evaluate_task+0x540/0x540
[  238.859519]  ? find_held_lock+0x36/0x1c0
[  238.863623]  ? out_of_memory+0x974/0x1430
[  238.867778]  ? lock_downgrade+0x900/0x900
[  238.871930]  ? check_preemption_disabled+0x48/0x280
[  238.876952]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  238.881882]  ? kasan_check_read+0x11/0x20
[  238.886028]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.891307]  ? rcu_softirq_qs+0x20/0x20
[  238.895285]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.900829]  ? oom_evaluate_task+0x302/0x540
[  238.905245]  out_of_memory+0xa84/0x1430
[  238.909228]  ? oom_killer_disable+0x3a0/0x3a0
[  238.913728]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  238.918668]  ? __ww_mutex_check_waiters+0x160/0x160
[  238.923692]  __alloc_pages_slowpath+0x2354/0x2e10
[  238.928560]  ? warn_alloc+0x120/0x120
[  238.932397]  ? mark_held_locks+0x130/0x130
[  238.936654]  ? find_get_entry+0xaae/0x1120
[  238.940901]  ? filemap_map_pages+0x1a20/0x1a20
[  238.945488]  ? zap_class+0x640/0x640
[  238.949203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.954742]  ? check_preemption_disabled+0x48/0x280
[  238.959756]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.965285]  ? should_fail+0x22d/0xd01
[  238.969168]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  238.974267]  ? zap_class+0x640/0x640
[  238.977996]  ? __lock_is_held+0xb5/0x140
[  238.982060]  ? mark_held_locks+0x130/0x130
[  238.986294]  ? lock_release+0xa00/0xa00
[  238.990279]  ? perf_trace_sched_process_exec+0x860/0x860
[  238.995722]  ? xa_load+0x2ba/0x460
[  238.999257]  ? lock_downgrade+0x900/0x900
[  239.003404]  ? __might_sleep+0x95/0x190
[  239.007400]  __alloc_pages_nodemask+0xa80/0xde0
[  239.012098]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  239.017225]  ? __page_cache_alloc+0x191/0x5c0
[  239.021714]  ? xa_load+0x2e1/0x460
[  239.025271]  ? xa_clear_mark+0x40/0x40
[  239.029155]  ? zap_class+0x640/0x640
[  239.032884]  ? zap_class+0x640/0x640
[  239.036618]  ? zap_class+0x640/0x640
[  239.040343]  ? __do_page_cache_readahead+0x663/0x810
[  239.045476]  ? find_held_lock+0x36/0x1c0
[  239.049585]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  239.055127]  alloc_pages_current+0x173/0x350
[  239.059553]  __page_cache_alloc+0x38c/0x5c0
[  239.063890]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  239.068853]  ? kasan_check_read+0x11/0x20
[  239.072998]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.078270]  ? generic_perform_write+0x6a0/0x6a0
[  239.083032]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.088567]  ? check_preemption_disabled+0x48/0x280
[  239.093623]  filemap_fault+0x1595/0x25f0
[  239.097691]  ? __lock_page_or_retry+0xa00/0xa00
[  239.102364]  ? mark_held_locks+0x130/0x130
[  239.106603]  ? filemap_map_pages+0xd6b/0x1a20
[  239.111117]  ? lock_downgrade+0x900/0x900
[  239.115263]  ? check_preemption_disabled+0x48/0x280
[  239.120280]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  239.125210]  ? kasan_check_read+0x11/0x20
[  239.129372]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.134645]  ? rcu_softirq_qs+0x20/0x20
[  239.138646]  ? filemap_map_pages+0xd92/0x1a20
[  239.143159]  ? print_usage_bug+0xc0/0xc0
[  239.147257]  ? find_get_entries_tag+0x1400/0x1400
[  239.152112]  ? __kasan_slab_free+0x102/0x150
[  239.156534]  ? kasan_slab_free+0xe/0x10
[  239.160518]  ? kmem_cache_free+0x83/0x290
[  239.164668]  ? __sigqueue_free.part.29+0x74/0x90
[  239.169466]  ? lock_acquire+0x1ed/0x520
[  239.173446]  ? ext4_filemap_fault+0x7a/0xad
[  239.177769]  ? lock_release+0xa00/0xa00
[  239.181737]  ? perf_trace_sched_process_exec+0x860/0x860
[  239.187200]  ? print_usage_bug+0xc0/0xc0
[  239.191265]  ? print_usage_bug+0xc0/0xc0
[  239.195349]  ? down_read+0x8d/0x120
[  239.198969]  ? ext4_filemap_fault+0x7a/0xad
[  239.203322]  ? __down_interruptible+0x700/0x700
[  239.207998]  ext4_filemap_fault+0x82/0xad
[  239.212147]  __do_fault+0x100/0x6b0
[  239.215794]  ? pmd_devmap_trans_unstable+0x220/0x220
[  239.220901]  ? mark_held_locks+0x130/0x130
[  239.225134]  ? mark_held_locks+0x130/0x130
[  239.229367]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  239.234900]  ? rcu_pm_notify+0xc0/0xc0
[  239.238841]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.244409]  __handle_mm_fault+0x3ea0/0x5be0
[  239.248827]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  239.253665]  ? _raw_spin_unlock_irq+0x27/0x80
[  239.258183]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  239.262779]  ? trace_hardirqs_on+0xbd/0x310
[  239.267093]  ? kasan_check_read+0x11/0x20
[  239.271255]  ? __set_current_blocked+0xdf/0x120
[  239.275991]  ? trace_hardirqs_off_caller+0x310/0x310
[  239.281103]  ? zap_class+0x640/0x640
[  239.284832]  ? zap_class+0x640/0x640
[  239.288554]  ? find_held_lock+0x36/0x1c0
[  239.292631]  ? handle_mm_fault+0x42a/0xc70
[  239.296865]  ? lock_downgrade+0x900/0x900
[  239.301011]  ? check_preemption_disabled+0x48/0x280
[  239.306029]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  239.310958]  ? kasan_check_read+0x11/0x20
[  239.315111]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.320413]  ? rcu_softirq_qs+0x20/0x20
[  239.324383]  ? trace_hardirqs_off_caller+0x310/0x310
[  239.329483]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.335017]  ? check_preemption_disabled+0x48/0x280
[  239.340030]  handle_mm_fault+0x54f/0xc70
[  239.344103]  ? __handle_mm_fault+0x5be0/0x5be0
[  239.348694]  ? find_vma+0x34/0x190
[  239.352231]  __do_page_fault+0x5e8/0xe60
[  239.356287]  ? exit_to_usermode_loop+0x1f4/0x380
[  239.361050]  do_page_fault+0xf2/0x7e0
[  239.364879]  ? vmalloc_sync_all+0x30/0x30
[  239.369101]  ? error_entry+0x70/0xd0
[  239.372831]  ? trace_hardirqs_off_caller+0xbb/0x310
[  239.377847]  ? trace_hardirqs_on_caller+0xc0/0x310
[  239.382771]  ? syscall_return_slowpath+0x5e0/0x5e0
[  239.387707]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  239.392560]  ? trace_hardirqs_on_caller+0x310/0x310
[  239.397570]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  239.403052]  ? prepare_exit_to_usermode+0x291/0x3b0
[  239.408060]  ? page_fault+0x8/0x30
[  239.411635]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  239.416513]  ? page_fault+0x8/0x30
[  239.420048]  page_fault+0x1e/0x30
[  239.423495] RIP: 0033:0x45db60
[  239.426723] Code: Bad RIP value.
[  239.430096] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  239.435480] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  239.442747] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  239.450007] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  239.457269] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  239.464529] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  239.471831] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  239.471836] warn_alloc_show_mem: 1 callbacks suppressed
[  239.471843] Mem-Info:
[  239.479121] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  239.484520] active_anon:54051 inactive_anon:192 isolated_anon:0
[  239.484520]  active_file:9 inactive_file:20 isolated_file:0
[  239.484520]  unevictable:0 dirty:0 writeback:0 unstable:0
[  239.484520]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  239.484520]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  239.484520]  free:13735 free_pcp:540 free_cma:0
[  239.486889] Call Trace:
[  239.496310] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  239.529065]  <IRQ>
[  239.531637] 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
[  239.559045]  dump_stack+0x244/0x39d
[  239.561163] lowmem_reserve[]: 0 2818 6321 6321
[  239.587266]  ? dump_stack_print_info.cold.1+0x20/0x20
[  239.590867] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  239.595452]  warn_alloc.cold.116+0xb7/0x1bd
[  239.600609] lowmem_reserve[]: 0 0 3503 3503
[  239.628369]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  239.632678] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  239.636991]  ? lock_downgrade+0x900/0x900
[  239.641829] lowmem_reserve[]: 0 0 0 0
[  239.670890]  ? trace_hardirqs_off+0xb8/0x310
[  239.675007] 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
[  239.678806]  ? trace_hardirqs_off+0xb8/0x310
[  239.683193] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  239.696715]  __alloc_pages_slowpath+0x26e8/0x2e10
[  239.701107] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  239.716481]  ? warn_alloc+0x120/0x120
[  239.721289] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  239.735423]  ? print_usage_bug+0xc0/0xc0
[  239.739200] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  239.748244]  ? warn_alloc+0x120/0x120
[  239.752301] 273 total pagecache pages
[  239.760867]  ? warn_alloc+0x120/0x120
[  239.764648] 0 pages in swap cache
[  239.768433]  ? print_usage_bug+0xc0/0xc0
[  239.772230] Swap cache stats: add 0, delete 0, find 0/0
[  239.775685]  ? kvm_clock_read+0x18/0x30
[  239.779735] Free swap  = 0kB
[  239.785092]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  239.789042] Total swap = 0kB
[  239.792054]  ? print_usage_bug+0xc0/0xc0
[  239.797043] 1965979 pages RAM
[  239.800085]  ? __lock_acquire+0x62f/0x4c20
[  239.804122] 0 pages HighMem/MovableOnly
[  239.807223]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.811432] 342853 pages reserved
[  239.815404]  ? should_fail+0x22d/0xd01
[  239.820912] 0 pages cma reserved
[  239.824358]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.828279] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  239.831593]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  239.836969] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  239.843373]  ? __lock_acquire+0x62f/0x4c20
[  239.848453] syz-fuzzer cpuset=/ mems_allowed=0
[  239.858688]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  239.872576]  ? __lock_acquire+0x62f/0x4c20
[  239.876993]  ? should_fail+0x22d/0xd01
[  239.880875]  ? rcu_irq_exit+0x1a2/0x390
[  239.884863]  ? mark_held_locks+0x130/0x130
[  239.889101]  ? mark_held_locks+0x130/0x130
[  239.893342]  ? mark_held_locks+0xc7/0x130
[  239.897497]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  239.902511]  ? zap_class+0x640/0x640
[  239.906221]  ? print_usage_bug+0xc0/0xc0
[  239.910360]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.915909]  ? check_preemption_disabled+0x48/0x280
[  239.920926]  ? __lock_is_held+0xb5/0x140
[  239.924988]  __alloc_pages_nodemask+0xa80/0xde0
[  239.929671]  ? zap_class+0x640/0x640
[  239.933557]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  239.938576]  ? find_held_lock+0x36/0x1c0
[  239.942682]  ? ____cache_alloc_node+0x1c7/0x1e0
[  239.947346]  ? lock_downgrade+0x900/0x900
[  239.951527]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.957077]  cache_grow_begin+0xa5/0x8c0
[  239.961135]  ? do_raw_spin_unlock+0xa7/0x330
[  239.965560]  fallback_alloc+0x204/0x2e0
[  239.969552]  ____cache_alloc_node+0x1c7/0x1e0
[  239.974052]  kmem_cache_alloc_node+0xe3/0x730
[  239.978554]  ? ipv6_get_ifaddr+0x42e/0x620
[  239.982794]  __alloc_skb+0x119/0x770
[  239.986511]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.991787]  ? netdev_alloc_frag+0x1f0/0x1f0
[  239.996189]  ? lock_downgrade+0x900/0x900
[  240.000358]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.005894]  ? refcount_sub_and_test_checked+0x203/0x310
[  240.011357]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  240.016802]  ? addrconf_rs_timer+0x690/0x690
[  240.021222]  ndisc_alloc_skb+0x144/0x340
[  240.025283]  ndisc_send_rs+0x331/0x6e0
[  240.029168]  addrconf_rs_timer+0x314/0x690
[  240.033401]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.037639]  call_timer_fn+0x272/0x920
[  240.041521]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.045767]  ? process_timeout+0x40/0x40
[  240.049872]  ? __run_timers+0x7da/0xc70
[  240.053881]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.058370]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.062873]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.067127]  ? lockdep_hardirqs_on+0x296/0x5b0
[  240.071709]  ? trace_hardirqs_on+0xbd/0x310
[  240.076046]  ? kasan_check_read+0x11/0x20
[  240.080189]  ? __run_timers+0x7da/0xc70
[  240.084160]  ? trace_hardirqs_off_caller+0x310/0x310
[  240.089265]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.093508]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.097740]  __run_timers+0x7e5/0xc70
[  240.101552]  ? timer_fixup_init+0x70/0x70
[  240.105726]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  240.110747]  ? zap_class+0x640/0x640
[  240.114479]  ? enqueue_hrtimer+0x1a5/0x560
[  240.118718]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  240.123912]  ? find_held_lock+0x36/0x1c0
[  240.127981]  ? zap_class+0x640/0x640
[  240.131698]  ? pvclock_read_flags+0x160/0x160
[  240.136224]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.141773]  ? check_preemption_disabled+0x48/0x280
[  240.146796]  ? __lock_is_held+0xb5/0x140
[  240.150868]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.156405]  ? check_preemption_disabled+0x48/0x280
[  240.161425]  run_timer_softirq+0x52/0xb0
[  240.165499]  ? rcu_read_lock_sched_held+0x14f/0x180
[  240.170533]  __do_softirq+0x308/0xb7e
[  240.174356]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  240.178886]  ? lock_downgrade+0x900/0x900
[  240.183053]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  240.188178]  ? pvclock_read_flags+0x160/0x160
[  240.192674]  ? lapic_next_event+0x5a/0x90
[  240.196834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.202376]  ? kvm_clock_read+0x18/0x30
[  240.206351]  ? kvm_sched_clock_read+0x9/0x20
[  240.210760]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.216296]  ? check_preemption_disabled+0x48/0x280
[  240.221321]  irq_exit+0x17f/0x1c0
[  240.224777]  smp_apic_timer_interrupt+0x1cb/0x760
[  240.229633]  ? smp_reschedule_interrupt+0x109/0x650
[  240.234650]  ? smp_call_function_single_interrupt+0x650/0x650
[  240.240535]  ? interrupt_entry+0xb5/0xc0
[  240.244599]  ? trace_hardirqs_off_caller+0xbb/0x310
[  240.249627]  ? trace_hardirqs_off_caller+0xbb/0x310
[  240.254651]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.259498]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.264522]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.269539]  ? task_prio+0x50/0x50
[  240.273081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.278617]  ? check_preemption_disabled+0x48/0x280
[  240.283644]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.288505]  apic_timer_interrupt+0xf/0x20
[  240.292738]  </IRQ>
[  240.294993] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  240.299923] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  240.318826] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  240.326562] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  240.333850] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  240.341165] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  240.348459] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  240.355727] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  240.363037]  skb_clone+0x1bb/0x500
[  240.366582]  ? finish_task_switch+0x2f4/0x910
[  240.371077]  ? skb_split+0x11e0/0x11e0
[  240.374968]  ? preempt_notifier_register+0x200/0x200
[  240.380070]  ? __switch_to_asm+0x34/0x70
[  240.384147]  ? __switch_to_asm+0x34/0x70
[  240.388204]  ? __switch_to_asm+0x40/0x70
[  240.392262]  ? __switch_to_asm+0x34/0x70
[  240.396360]  ? __switch_to_asm+0x40/0x70
[  240.400416]  ? __switch_to_asm+0x34/0x70
[  240.404471]  ? __switch_to_asm+0x40/0x70
[  240.408525]  ? __switch_to_asm+0x34/0x70
[  240.412583]  ? __switch_to_asm+0x34/0x70
[  240.416659]  ? __switch_to_asm+0x40/0x70
[  240.420720]  ? __switch_to_asm+0x34/0x70
[  240.424786]  bpf_clone_redirect+0xb9/0x490
[  240.429023]  ? __schedule+0x8d7/0x21d0
[  240.432914]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  240.437947]  ? __sched_text_start+0x8/0x8
[  240.442106]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  240.446875]  ? find_held_lock+0x36/0x1c0
[  240.450942]  ? lock_acquire+0x1ed/0x520
[  240.454917]  ? bpf_test_run+0x3cb/0x780
[  240.458886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.464433]  ? check_preemption_disabled+0x48/0x280
[  240.469450]  ? kasan_check_read+0x11/0x20
[  240.473591]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.478864]  ? rcu_softirq_qs+0x20/0x20
[  240.482843]  ? preempt_schedule+0x4d/0x60
[  240.486989]  ? ___preempt_schedule+0x16/0x18
[  240.491417]  ? bpf_test_run+0x25d/0x780
[  240.495418]  ? netlink_diag_dump+0x2a0/0x2a0
[  240.499835]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.505372]  ? bpf_test_init.isra.10+0x70/0x100
[  240.510042]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  240.514805]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  240.519652]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  240.525185]  ? fput+0x130/0x1a0
[  240.528461]  ? __bpf_prog_get+0x9b/0x290
[  240.532538]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  240.537373]  ? bpf_prog_test_run+0x130/0x1a0
[  240.541780]  ? __x64_sys_bpf+0x3d8/0x520
[  240.545852]  ? bpf_prog_get+0x20/0x20
[  240.549666]  ? do_syscall_64+0x1b9/0x820
[  240.553721]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  240.559090]  ? syscall_return_slowpath+0x5e0/0x5e0
[  240.564031]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.569047]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  240.574066]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  240.580727]  ? __switch_to_asm+0x40/0x70
[  240.584794]  ? __switch_to_asm+0x34/0x70
[  240.588866]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.593732]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  240.599148] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  240.599234] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  240.606162] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  240.606167] Call Trace:
[  240.606173]  <IRQ>
[  240.606190]  dump_stack+0x244/0x39d
[  240.606209]  ? dump_stack_print_info.cold.1+0x20/0x20
[  240.612781] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  240.622060]  warn_alloc.cold.116+0xb7/0x1bd
[  240.624612] syz-executor3 cpuset=syz3 mems_allowed=0
[  240.626757]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  240.660258]  ? lock_downgrade+0x900/0x900
[  240.664417]  ? trace_hardirqs_off+0xb8/0x310
[  240.668838]  ? trace_hardirqs_off+0xb8/0x310
[  240.673273]  __alloc_pages_slowpath+0x26e8/0x2e10
[  240.678162]  ? warn_alloc+0x120/0x120
[  240.681968]  ? print_usage_bug+0xc0/0xc0
[  240.686027]  ? warn_alloc+0x120/0x120
[  240.689837]  ? warn_alloc+0x120/0x120
[  240.693648]  ? print_usage_bug+0xc0/0xc0
[  240.697721]  ? kvm_clock_read+0x18/0x30
[  240.701696]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  240.706713]  ? print_usage_bug+0xc0/0xc0
[  240.710774]  ? __lock_acquire+0x62f/0x4c20
[  240.715016]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.720555]  ? should_fail+0x22d/0xd01
[  240.724482]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.729796]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  240.734925]  ? __lock_acquire+0x62f/0x4c20
[  240.739171]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  240.744301]  ? __lock_acquire+0x62f/0x4c20
[  240.748542]  ? should_fail+0x22d/0xd01
[  240.752417]  ? rcu_irq_exit+0x1a2/0x390
[  240.756396]  ? mark_held_locks+0x130/0x130
[  240.760652]  ? mark_held_locks+0x130/0x130
[  240.764897]  ? mark_held_locks+0xc7/0x130
[  240.769037]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  240.774045]  ? zap_class+0x640/0x640
[  240.777749]  ? print_usage_bug+0xc0/0xc0
[  240.781802]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.787369]  ? check_preemption_disabled+0x48/0x280
[  240.792388]  ? __lock_is_held+0xb5/0x140
[  240.796484]  __alloc_pages_nodemask+0xa80/0xde0
[  240.801149]  ? zap_class+0x640/0x640
[  240.804862]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  240.809896]  ? find_held_lock+0x36/0x1c0
[  240.813964]  ? ____cache_alloc_node+0x1c7/0x1e0
[  240.818635]  ? lock_downgrade+0x900/0x900
[  240.822796]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.828340]  cache_grow_begin+0xa5/0x8c0
[  240.832402]  ? do_raw_spin_unlock+0xa7/0x330
[  240.836813]  fallback_alloc+0x204/0x2e0
[  240.840800]  ____cache_alloc_node+0x1c7/0x1e0
[  240.845311]  kmem_cache_alloc_node+0xe3/0x730
[  240.849811]  ? ipv6_get_ifaddr+0x42e/0x620
[  240.854084]  __alloc_skb+0x119/0x770
[  240.857796]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.863097]  ? netdev_alloc_frag+0x1f0/0x1f0
[  240.867518]  ? lock_downgrade+0x900/0x900
[  240.871692]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.877228]  ? refcount_sub_and_test_checked+0x203/0x310
[  240.882699]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  240.888146]  ? addrconf_rs_timer+0x690/0x690
[  240.892560]  ndisc_alloc_skb+0x144/0x340
[  240.896635]  ndisc_send_rs+0x331/0x6e0
[  240.900522]  addrconf_rs_timer+0x314/0x690
[  240.904766]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.909002]  call_timer_fn+0x272/0x920
[  240.912898]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.917128]  ? process_timeout+0x40/0x40
[  240.921207]  ? mark_held_locks+0xc7/0x130
[  240.925368]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.929900]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.934390]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.938624]  ? lockdep_hardirqs_on+0x296/0x5b0
[  240.943216]  ? trace_hardirqs_on+0xbd/0x310
[  240.947537]  ? kasan_check_read+0x11/0x20
[  240.951676]  ? __run_timers+0x7da/0xc70
[  240.955650]  ? trace_hardirqs_off_caller+0x310/0x310
[  240.960758]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.965010]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.969255]  __run_timers+0x7e5/0xc70
[  240.973056]  ? timer_fixup_init+0x70/0x70
[  240.977207]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  240.982230]  ? zap_class+0x640/0x640
[  240.985944]  ? print_usage_bug+0xc0/0xc0
[  240.990014]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  240.995237]  ? find_held_lock+0x36/0x1c0
[  240.999315]  ? zap_class+0x640/0x640
[  241.003041]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.008571]  ? check_preemption_disabled+0x48/0x280
[  241.013583]  ? __lock_is_held+0xb5/0x140
[  241.017639]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.023197]  ? check_preemption_disabled+0x48/0x280
[  241.028253]  run_timer_softirq+0x52/0xb0
[  241.032306]  ? rcu_read_lock_sched_held+0x14f/0x180
[  241.037316]  __do_softirq+0x308/0xb7e
[  241.041111]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  241.045594]  ? lock_downgrade+0x900/0x900
[  241.049748]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  241.054878]  ? pvclock_read_flags+0x160/0x160
[  241.059368]  ? lapic_next_event+0x5a/0x90
[  241.063564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.069095]  ? kvm_clock_read+0x18/0x30
[  241.073059]  ? kvm_sched_clock_read+0x9/0x20
[  241.077478]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.083048]  ? check_preemption_disabled+0x48/0x280
[  241.088067]  irq_exit+0x17f/0x1c0
[  241.091514]  smp_apic_timer_interrupt+0x1cb/0x760
[  241.096350]  ? smp_reschedule_interrupt+0x109/0x650
[  241.101360]  ? smp_call_function_single_interrupt+0x650/0x650
[  241.107235]  ? interrupt_entry+0xb5/0xc0
[  241.111288]  ? trace_hardirqs_off_caller+0xbb/0x310
[  241.116294]  ? trace_hardirqs_off_caller+0xbb/0x310
[  241.121304]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.126176]  ? trace_hardirqs_on_caller+0x310/0x310
[  241.131186]  ? trace_hardirqs_on_caller+0x310/0x310
[  241.136209]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.141055]  apic_timer_interrupt+0xf/0x20
[  241.145309]  </IRQ>
[  241.147544] RIP: 0010:dump_stack+0x358/0x39d
[  241.151967] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  241.170906] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  241.178610] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  241.185925] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  241.193208] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  241.200515] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  241.207776] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  241.215059]  ? dump_stack+0x34f/0x39d
[  241.218883]  ? dump_stack_print_info.cold.1+0x20/0x20
[  241.224070]  ? mark_held_locks+0x130/0x130
[  241.228314]  ? mark_held_locks+0x130/0x130
[  241.232548]  dump_header+0x27b/0xf72
[  241.236295]  ? pagefault_out_of_memory+0x197/0x197
[  241.241242]  ? __lock_acquire+0x62f/0x4c20
[  241.245506]  ? percpu_ref_get_many+0x240/0x240
[  241.250090]  ? print_usage_bug+0xc0/0xc0
[  241.254152]  ? zap_class+0x640/0x640
[  241.257867]  ? print_usage_bug+0xc0/0xc0
[  241.261923]  ? print_usage_bug+0xc0/0xc0
[  241.265984]  ? zap_class+0x640/0x640
[  241.269699]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.275237]  ? find_held_lock+0x36/0x1c0
[  241.279304]  ? mark_held_locks+0xc7/0x130
[  241.283450]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  241.288564]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  241.293662]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  241.298257]  ? trace_hardirqs_on+0xbd/0x310
[  241.302575]  ? kasan_check_read+0x11/0x20
[  241.306720]  ? ___ratelimit+0x3b4/0x672
[  241.310692]  ? trace_hardirqs_off_caller+0x310/0x310
[  241.315790]  ? trace_hardirqs_on+0x310/0x310
[  241.320202]  ? lock_downgrade+0x900/0x900
[  241.324349]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  241.329444]  ? ___ratelimit+0x3b9/0x672
[  241.333431]  ? idr_get_free+0xf70/0xf70
[  241.337402]  ? find_held_lock+0x36/0x1c0
[  241.341513]  oom_kill_process.cold.27+0x10/0x903
[  241.346348]  ? zap_class+0x640/0x640
[  241.350074]  ? check_preemption_disabled+0x48/0x280
[  241.355086]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  241.360005]  ? kasan_check_read+0x11/0x20
[  241.364161]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.369462]  ? oom_evaluate_task+0x540/0x540
[  241.373882]  ? find_held_lock+0x36/0x1c0
[  241.377963]  ? out_of_memory+0x974/0x1430
[  241.382121]  ? lock_downgrade+0x900/0x900
[  241.386287]  ? check_preemption_disabled+0x48/0x280
[  241.391303]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  241.396241]  ? kasan_check_read+0x11/0x20
[  241.400383]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.405684]  ? rcu_softirq_qs+0x20/0x20
[  241.409658]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.415188]  ? oom_evaluate_task+0x302/0x540
[  241.419597]  out_of_memory+0xa84/0x1430
[  241.423576]  ? oom_killer_disable+0x3a0/0x3a0
[  241.428100]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  241.433030]  ? __ww_mutex_check_waiters+0x160/0x160
[  241.438096]  __alloc_pages_slowpath+0x2354/0x2e10
[  241.442956]  ? warn_alloc+0x120/0x120
[  241.446745]  ? mark_held_locks+0x130/0x130
[  241.450975]  ? find_get_entry+0xaae/0x1120
[  241.455210]  ? filemap_map_pages+0x1a20/0x1a20
[  241.459787]  ? zap_class+0x640/0x640
[  241.463502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.469030]  ? check_preemption_disabled+0x48/0x280
[  241.474037]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.479581]  ? should_fail+0x22d/0xd01
[  241.483461]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  241.488584]  ? zap_class+0x640/0x640
[  241.492311]  ? __lock_is_held+0xb5/0x140
[  241.496388]  ? mark_held_locks+0x130/0x130
[  241.500624]  ? lock_release+0xa00/0xa00
[  241.504641]  ? perf_trace_sched_process_exec+0x860/0x860
[  241.510144]  ? xa_load+0x2ba/0x460
[  241.513711]  ? lock_downgrade+0x900/0x900
[  241.517860]  ? __might_sleep+0x95/0x190
[  241.521847]  __alloc_pages_nodemask+0xa80/0xde0
[  241.526533]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  241.531546]  ? __page_cache_alloc+0x191/0x5c0
[  241.536034]  ? xa_load+0x2e1/0x460
[  241.539571]  ? xa_clear_mark+0x40/0x40
[  241.543458]  ? zap_class+0x640/0x640
[  241.547203]  ? zap_class+0x640/0x640
[  241.550914]  ? zap_class+0x640/0x640
[  241.554628]  ? __do_page_cache_readahead+0x663/0x810
[  241.559731]  ? find_held_lock+0x36/0x1c0
[  241.563790]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  241.569343]  alloc_pages_current+0x173/0x350
[  241.573754]  __page_cache_alloc+0x38c/0x5c0
[  241.578071]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  241.583001]  ? kasan_check_read+0x11/0x20
[  241.587148]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.592431]  ? generic_perform_write+0x6a0/0x6a0
[  241.597191]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.602732]  ? check_preemption_disabled+0x48/0x280
[  241.607755]  filemap_fault+0x1595/0x25f0
[  241.611858]  ? __lock_page_or_retry+0xa00/0xa00
[  241.616534]  ? mark_held_locks+0x130/0x130
[  241.620777]  ? filemap_map_pages+0xd6b/0x1a20
[  241.625276]  ? lock_downgrade+0x900/0x900
[  241.629425]  ? check_preemption_disabled+0x48/0x280
[  241.634447]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  241.639379]  ? kasan_check_read+0x11/0x20
[  241.643525]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.648798]  ? rcu_softirq_qs+0x20/0x20
[  241.652790]  ? filemap_map_pages+0xd92/0x1a20
[  241.657323]  ? print_usage_bug+0xc0/0xc0
[  241.661395]  ? find_get_entries_tag+0x1400/0x1400
[  241.666237]  ? __kasan_slab_free+0x102/0x150
[  241.670651]  ? kasan_slab_free+0xe/0x10
[  241.674624]  ? kmem_cache_free+0x83/0x290
[  241.678770]  ? __sigqueue_free.part.29+0x74/0x90
[  241.683541]  ? lock_acquire+0x1ed/0x520
[  241.687544]  ? ext4_filemap_fault+0x7a/0xad
[  241.691873]  ? lock_release+0xa00/0xa00
[  241.695860]  ? perf_trace_sched_process_exec+0x860/0x860
[  241.701310]  ? print_usage_bug+0xc0/0xc0
[  241.705377]  ? print_usage_bug+0xc0/0xc0
[  241.709449]  ? down_read+0x8d/0x120
[  241.713075]  ? ext4_filemap_fault+0x7a/0xad
[  241.717401]  ? __down_interruptible+0x700/0x700
[  241.722084]  ext4_filemap_fault+0x82/0xad
[  241.726244]  __do_fault+0x100/0x6b0
[  241.729879]  ? pmd_devmap_trans_unstable+0x220/0x220
[  241.734990]  ? mark_held_locks+0x130/0x130
[  241.739239]  ? mark_held_locks+0x130/0x130
[  241.743663]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  241.749218]  ? rcu_pm_notify+0xc0/0xc0
[  241.753133]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.758707]  __handle_mm_fault+0x3ea0/0x5be0
[  241.763125]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  241.767964]  ? _raw_spin_unlock_irq+0x27/0x80
[  241.772463]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  241.777059]  ? trace_hardirqs_on+0xbd/0x310
[  241.781377]  ? kasan_check_read+0x11/0x20
[  241.785525]  ? __set_current_blocked+0xdf/0x120
[  241.790241]  ? trace_hardirqs_off_caller+0x310/0x310
[  241.795357]  ? zap_class+0x640/0x640
[  241.799070]  ? zap_class+0x640/0x640
[  241.802788]  ? find_held_lock+0x36/0x1c0
[  241.806875]  ? handle_mm_fault+0x42a/0xc70
[  241.811110]  ? lock_downgrade+0x900/0x900
[  241.815260]  ? check_preemption_disabled+0x48/0x280
[  241.820280]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  241.825214]  ? kasan_check_read+0x11/0x20
[  241.829375]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.834652]  ? rcu_softirq_qs+0x20/0x20
[  241.838646]  ? trace_hardirqs_off_caller+0x310/0x310
[  241.843765]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.849318]  ? check_preemption_disabled+0x48/0x280
[  241.854341]  handle_mm_fault+0x54f/0xc70
[  241.858406]  ? __handle_mm_fault+0x5be0/0x5be0
[  241.862991]  ? find_vma+0x34/0x190
[  241.866534]  __do_page_fault+0x5e8/0xe60
[  241.870594]  ? exit_to_usermode_loop+0x1f4/0x380
[  241.875863]  do_page_fault+0xf2/0x7e0
[  241.879668]  ? vmalloc_sync_all+0x30/0x30
[  241.883817]  ? error_entry+0x70/0xd0
[  241.887590]  ? trace_hardirqs_off_caller+0xbb/0x310
[  241.892609]  ? trace_hardirqs_on_caller+0xc0/0x310
[  241.897548]  ? syscall_return_slowpath+0x5e0/0x5e0
[  241.902470]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.907320]  ? trace_hardirqs_on_caller+0x310/0x310
[  241.912368]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  241.917851]  ? prepare_exit_to_usermode+0x291/0x3b0
[  241.922872]  ? page_fault+0x8/0x30
[  241.926422]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.931259]  ? page_fault+0x8/0x30
[  241.934792]  page_fault+0x1e/0x30
[  241.938257] RIP: 0033:0x45db60
[  241.941474] Code: Bad RIP value.
[  241.944834] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  241.950222] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  241.957489] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  241.964750] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  241.972012] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  241.979296] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  241.986600] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  241.986605] warn_alloc_show_mem: 1 callbacks suppressed
[  241.986611] Mem-Info:
[  241.993932] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  241.999302] active_anon:54051 inactive_anon:192 isolated_anon:0
[  241.999302]  active_file:9 inactive_file:20 isolated_file:0
[  241.999302]  unevictable:0 dirty:0 writeback:0 unstable:0
[  241.999302]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  241.999302]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  241.999302]  free:13735 free_pcp:540 free_cma:0
[  242.001672] Call Trace:
[  242.011058] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  242.043829]  <IRQ>
[  242.046412] 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
[  242.073840]  dump_stack+0x244/0x39d
[  242.075991] lowmem_reserve[]: 0 2818 6321 6321
[  242.102095]  ? dump_stack_print_info.cold.1+0x20/0x20
[  242.105697] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  242.110291]  warn_alloc.cold.116+0xb7/0x1bd
[  242.115444] lowmem_reserve[]: 0 0 3503 3503
[  242.143193]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  242.147486] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  242.151793]  ? lock_downgrade+0x900/0x900
[  242.156622] lowmem_reserve[]: 0 0 0 0
[  242.185674]  ? trace_hardirqs_off+0xb8/0x310
[  242.189789] 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
[  242.193577]  ? trace_hardirqs_off+0xb8/0x310
[  242.197954] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  242.211467]  __alloc_pages_slowpath+0x26e8/0x2e10
[  242.215850] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  242.231137]  ? warn_alloc+0x120/0x120
[  242.235931] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  242.250044]  ? print_usage_bug+0xc0/0xc0
[  242.253828] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  242.262648]  ? warn_alloc+0x120/0x120
[  242.266682] 273 total pagecache pages
[  242.275254]  ? warn_alloc+0x120/0x120
[  242.279035] 0 pages in swap cache
[  242.282818]  ? print_usage_bug+0xc0/0xc0
[  242.286599] Swap cache stats: add 0, delete 0, find 0/0
[  242.290039]  ? kvm_clock_read+0x18/0x30
[  242.294071] Free swap  = 0kB
[  242.299422]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  242.303369] Total swap = 0kB
[  242.306375]  ? print_usage_bug+0xc0/0xc0
[  242.311360] 1965979 pages RAM
[  242.314364]  ? __lock_acquire+0x62f/0x4c20
[  242.318410] 0 pages HighMem/MovableOnly
[  242.321518]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.325723] 342853 pages reserved
[  242.329688]  ? should_fail+0x22d/0xd01
[  242.335194] 0 pages cma reserved
[  242.338651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.342583] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  242.345882]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.351231] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  242.357669]  ? __lock_acquire+0x62f/0x4c20
[  242.362781] syz-fuzzer cpuset=/ mems_allowed=0
[  242.373006]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.386868]  ? __lock_acquire+0x62f/0x4c20
[  242.391094]  ? should_fail+0x22d/0xd01
[  242.394972]  ? rcu_irq_exit+0x1a2/0x390
[  242.398963]  ? mark_held_locks+0x130/0x130
[  242.403209]  ? mark_held_locks+0x130/0x130
[  242.407460]  ? mark_held_locks+0xc7/0x130
[  242.411644]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  242.416761]  ? zap_class+0x640/0x640
[  242.420483]  ? print_usage_bug+0xc0/0xc0
[  242.424538]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.430075]  ? check_preemption_disabled+0x48/0x280
[  242.435100]  ? __lock_is_held+0xb5/0x140
[  242.439198]  __alloc_pages_nodemask+0xa80/0xde0
[  242.443896]  ? zap_class+0x640/0x640
[  242.447626]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  242.452649]  ? find_held_lock+0x36/0x1c0
[  242.456750]  ? ____cache_alloc_node+0x1c7/0x1e0
[  242.461450]  ? lock_downgrade+0x900/0x900
[  242.465600]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.471155]  cache_grow_begin+0xa5/0x8c0
[  242.475213]  ? do_raw_spin_unlock+0xa7/0x330
[  242.479628]  fallback_alloc+0x204/0x2e0
[  242.483614]  ____cache_alloc_node+0x1c7/0x1e0
[  242.488182]  kmem_cache_alloc_node+0xe3/0x730
[  242.492678]  ? ipv6_get_ifaddr+0x42e/0x620
[  242.496917]  __alloc_skb+0x119/0x770
[  242.500636]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.505931]  ? netdev_alloc_frag+0x1f0/0x1f0
[  242.510451]  ? lock_downgrade+0x900/0x900
[  242.514606]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.520175]  ? refcount_sub_and_test_checked+0x203/0x310
[  242.525626]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  242.531104]  ? addrconf_rs_timer+0x690/0x690
[  242.535539]  ndisc_alloc_skb+0x144/0x340
[  242.539604]  ndisc_send_rs+0x331/0x6e0
[  242.543508]  addrconf_rs_timer+0x314/0x690
[  242.547754]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.552006]  call_timer_fn+0x272/0x920
[  242.555886]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.560140]  ? process_timeout+0x40/0x40
[  242.564216]  ? __run_timers+0x7da/0xc70
[  242.568187]  ? _raw_spin_unlock_irq+0x27/0x80
[  242.572678]  ? _raw_spin_unlock_irq+0x27/0x80
[  242.577166]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.581404]  ? lockdep_hardirqs_on+0x296/0x5b0
[  242.585985]  ? trace_hardirqs_on+0xbd/0x310
[  242.590301]  ? kasan_check_read+0x11/0x20
[  242.594450]  ? __run_timers+0x7da/0xc70
[  242.598452]  ? trace_hardirqs_off_caller+0x310/0x310
[  242.603558]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.607790]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.612019]  __run_timers+0x7e5/0xc70
[  242.615835]  ? timer_fixup_init+0x70/0x70
[  242.619992]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  242.625005]  ? zap_class+0x640/0x640
[  242.628737]  ? enqueue_hrtimer+0x1a5/0x560
[  242.632972]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  242.638184]  ? find_held_lock+0x36/0x1c0
[  242.642266]  ? zap_class+0x640/0x640
[  242.645996]  ? pvclock_read_flags+0x160/0x160
[  242.650491]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.656026]  ? check_preemption_disabled+0x48/0x280
[  242.661048]  ? __lock_is_held+0xb5/0x140
[  242.665141]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.670708]  ? check_preemption_disabled+0x48/0x280
[  242.675730]  run_timer_softirq+0x52/0xb0
[  242.679788]  ? rcu_read_lock_sched_held+0x14f/0x180
[  242.684804]  __do_softirq+0x308/0xb7e
[  242.688642]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  242.693136]  ? lock_downgrade+0x900/0x900
[  242.697302]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  242.702444]  ? pvclock_read_flags+0x160/0x160
[  242.706941]  ? lapic_next_event+0x5a/0x90
[  242.711089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.716635]  ? kvm_clock_read+0x18/0x30
[  242.720613]  ? kvm_sched_clock_read+0x9/0x20
[  242.725023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.730563]  ? check_preemption_disabled+0x48/0x280
[  242.735589]  irq_exit+0x17f/0x1c0
[  242.739039]  smp_apic_timer_interrupt+0x1cb/0x760
[  242.743923]  ? smp_reschedule_interrupt+0x109/0x650
[  242.748940]  ? smp_call_function_single_interrupt+0x650/0x650
[  242.754830]  ? interrupt_entry+0xb5/0xc0
[  242.758924]  ? trace_hardirqs_off_caller+0xbb/0x310
[  242.763938]  ? trace_hardirqs_off_caller+0xbb/0x310
[  242.768968]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  242.773813]  ? trace_hardirqs_on_caller+0x310/0x310
[  242.778845]  ? trace_hardirqs_on_caller+0x310/0x310
[  242.783859]  ? task_prio+0x50/0x50
[  242.787416]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.792983]  ? check_preemption_disabled+0x48/0x280
[  242.798004]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  242.802860]  apic_timer_interrupt+0xf/0x20
[  242.807102]  </IRQ>
[  242.809361] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  242.814309] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  242.833238] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  242.840945] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  242.848208] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  242.855472] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  242.862734] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  242.870000] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  242.877303]  skb_clone+0x1bb/0x500
[  242.880849]  ? finish_task_switch+0x2f4/0x910
[  242.885346]  ? skb_split+0x11e0/0x11e0
[  242.889236]  ? preempt_notifier_register+0x200/0x200
[  242.894349]  ? __switch_to_asm+0x34/0x70
[  242.898404]  ? __switch_to_asm+0x34/0x70
[  242.902471]  ? __switch_to_asm+0x40/0x70
[  242.906567]  ? __switch_to_asm+0x34/0x70
[  242.910635]  ? __switch_to_asm+0x40/0x70
[  242.914721]  ? __switch_to_asm+0x34/0x70
[  242.918903]  ? __switch_to_asm+0x40/0x70
[  242.922957]  ? __switch_to_asm+0x34/0x70
[  242.927010]  ? __switch_to_asm+0x34/0x70
[  242.931094]  ? __switch_to_asm+0x40/0x70
[  242.935151]  ? __switch_to_asm+0x34/0x70
[  242.939223]  bpf_clone_redirect+0xb9/0x490
[  242.943470]  ? __schedule+0x8d7/0x21d0
[  242.947359]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  242.952372]  ? __sched_text_start+0x8/0x8
[  242.956515]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  242.961275]  ? find_held_lock+0x36/0x1c0
[  242.965346]  ? lock_acquire+0x1ed/0x520
[  242.969320]  ? bpf_test_run+0x3cb/0x780
[  242.973307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.978853]  ? check_preemption_disabled+0x48/0x280
[  242.983876]  ? kasan_check_read+0x11/0x20
[  242.988020]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.993293]  ? rcu_softirq_qs+0x20/0x20
[  242.997264]  ? preempt_schedule+0x4d/0x60
[  243.001438]  ? ___preempt_schedule+0x16/0x18
[  243.005853]  ? bpf_test_run+0x25d/0x780
[  243.009838]  ? netlink_diag_dump+0x2a0/0x2a0
[  243.014249]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.019782]  ? bpf_test_init.isra.10+0x70/0x100
[  243.024473]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  243.029238]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  243.034078]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  243.039620]  ? fput+0x130/0x1a0
[  243.042908]  ? __bpf_prog_get+0x9b/0x290
[  243.046981]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  243.051832]  ? bpf_prog_test_run+0x130/0x1a0
[  243.056244]  ? __x64_sys_bpf+0x3d8/0x520
[  243.060320]  ? bpf_prog_get+0x20/0x20
[  243.064142]  ? do_syscall_64+0x1b9/0x820
[  243.068201]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  243.073565]  ? syscall_return_slowpath+0x5e0/0x5e0
[  243.078496]  ? trace_hardirqs_on_caller+0x310/0x310
[  243.083524]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  243.088544]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  243.095203]  ? __switch_to_asm+0x40/0x70
[  243.099289]  ? __switch_to_asm+0x34/0x70
[  243.103356]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.108208]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  243.113586] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  243.113655] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  243.120601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  243.120610] Call Trace:
[  243.127172] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  243.136447]  <IRQ>
[  243.139034] syz-executor3 cpuset=syz3 mems_allowed=0
[  243.149510]  dump_stack+0x244/0x39d
[  243.160335]  ? dump_stack_print_info.cold.1+0x20/0x20
[  243.165526]  warn_alloc.cold.116+0xb7/0x1bd
[  243.169868]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  243.174728]  ? lock_downgrade+0x900/0x900
[  243.178927]  ? trace_hardirqs_off+0xb8/0x310
[  243.183353]  ? trace_hardirqs_off+0xb8/0x310
[  243.187797]  __alloc_pages_slowpath+0x26e8/0x2e10
[  243.192681]  ? warn_alloc+0x120/0x120
[  243.196478]  ? print_usage_bug+0xc0/0xc0
[  243.200535]  ? warn_alloc+0x120/0x120
[  243.204337]  ? warn_alloc+0x120/0x120
[  243.208155]  ? print_usage_bug+0xc0/0xc0
[  243.212244]  ? print_usage_bug+0xc0/0xc0
[  243.216311]  ? __lock_acquire+0x62f/0x4c20
[  243.220548]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.226115]  ? should_fail+0x22d/0xd01
[  243.230022]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  243.235122]  ? __lock_acquire+0x62f/0x4c20
[  243.239358]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  243.244455]  ? __lock_acquire+0x62f/0x4c20
[  243.248684]  ? should_fail+0x22d/0xd01
[  243.252564]  ? find_held_lock+0x36/0x1c0
[  243.256629]  ? mark_held_locks+0x130/0x130
[  243.260861]  ? mark_held_locks+0x130/0x130
[  243.265092]  ? zap_class+0x640/0x640
[  243.268815]  ? zap_class+0x640/0x640
[  243.272546]  ? print_usage_bug+0xc0/0xc0
[  243.276632]  ? do_raw_spin_unlock+0xa7/0x330
[  243.281037]  ? zap_class+0x640/0x640
[  243.284745]  ? print_usage_bug+0xc0/0xc0
[  243.288801]  ? wq_watchdog_touch+0x9c/0xfe
[  243.293041]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.298589]  ? check_preemption_disabled+0x48/0x280
[  243.303682]  ? __lock_is_held+0xb5/0x140
[  243.307755]  __alloc_pages_nodemask+0xa80/0xde0
[  243.312421]  ? zap_class+0x640/0x640
[  243.316170]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  243.321194]  ? find_held_lock+0x36/0x1c0
[  243.325261]  ? ____cache_alloc_node+0x1c7/0x1e0
[  243.329928]  ? lock_downgrade+0x900/0x900
[  243.334085]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.339654]  cache_grow_begin+0xa5/0x8c0
[  243.343715]  ? do_raw_spin_unlock+0xa7/0x330
[  243.348132]  fallback_alloc+0x204/0x2e0
[  243.352113]  ____cache_alloc_node+0x1c7/0x1e0
[  243.356609]  kmem_cache_alloc_node+0xe3/0x730
[  243.361109]  ? ipv6_get_ifaddr+0x42e/0x620
[  243.365346]  __alloc_skb+0x119/0x770
[  243.369054]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.374326]  ? netdev_alloc_frag+0x1f0/0x1f0
[  243.378730]  ? lock_downgrade+0x900/0x900
[  243.382880]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.388415]  ? refcount_sub_and_test_checked+0x203/0x310
[  243.393864]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  243.399314]  ? addrconf_rs_timer+0x690/0x690
[  243.403734]  ndisc_alloc_skb+0x144/0x340
[  243.407796]  ndisc_send_rs+0x331/0x6e0
[  243.411685]  addrconf_rs_timer+0x314/0x690
[  243.415921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.420172]  call_timer_fn+0x272/0x920
[  243.424049]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.428293]  ? process_timeout+0x40/0x40
[  243.432406]  ? mark_held_locks+0xc7/0x130
[  243.436596]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.441100]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.445616]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.449859]  ? lockdep_hardirqs_on+0x296/0x5b0
[  243.454444]  ? trace_hardirqs_on+0xbd/0x310
[  243.458760]  ? kasan_check_read+0x11/0x20
[  243.462907]  ? __run_timers+0x7da/0xc70
[  243.466876]  ? trace_hardirqs_off_caller+0x310/0x310
[  243.471974]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.476205]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.480448]  __run_timers+0x7e5/0xc70
[  243.484250]  ? timer_fixup_init+0x70/0x70
[  243.488408]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  243.493435]  ? zap_class+0x640/0x640
[  243.497145]  ? print_usage_bug+0xc0/0xc0
[  243.501267]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  243.506476]  ? find_held_lock+0x36/0x1c0
[  243.510532]  ? zap_class+0x640/0x640
[  243.514252]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.519781]  ? check_preemption_disabled+0x48/0x280
[  243.524795]  ? __lock_is_held+0xb5/0x140
[  243.528884]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.534412]  ? check_preemption_disabled+0x48/0x280
[  243.539421]  run_timer_softirq+0x52/0xb0
[  243.543494]  ? rcu_read_lock_sched_held+0x14f/0x180
[  243.548505]  __do_softirq+0x308/0xb7e
[  243.552300]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  243.556816]  ? lock_downgrade+0x900/0x900
[  243.560981]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  243.566083]  ? pvclock_read_flags+0x160/0x160
[  243.570572]  ? lapic_next_event+0x5a/0x90
[  243.574715]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.580281]  ? kvm_clock_read+0x18/0x30
[  243.584266]  ? kvm_sched_clock_read+0x9/0x20
[  243.588671]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.594209]  ? check_preemption_disabled+0x48/0x280
[  243.599232]  irq_exit+0x17f/0x1c0
[  243.602687]  smp_apic_timer_interrupt+0x1cb/0x760
[  243.607525]  ? smp_reschedule_interrupt+0x109/0x650
[  243.612542]  ? smp_call_function_single_interrupt+0x650/0x650
[  243.618440]  ? interrupt_entry+0xb5/0xc0
[  243.622500]  ? trace_hardirqs_off_caller+0xbb/0x310
[  243.627517]  ? trace_hardirqs_off_caller+0xbb/0x310
[  243.632533]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.637392]  ? trace_hardirqs_on_caller+0x310/0x310
[  243.642406]  ? trace_hardirqs_on_caller+0x310/0x310
[  243.647435]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.652286]  apic_timer_interrupt+0xf/0x20
[  243.656515]  </IRQ>
[  243.658754] RIP: 0010:dump_stack+0x358/0x39d
[  243.663165] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  243.682093] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  243.689820] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  243.697095] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  243.704363] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  243.711657] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  243.718926] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  243.726211]  ? dump_stack+0x34f/0x39d
[  243.730025]  ? dump_stack_print_info.cold.1+0x20/0x20
[  243.735221]  ? mark_held_locks+0x130/0x130
[  243.739458]  ? mark_held_locks+0x130/0x130
[  243.743853]  dump_header+0x27b/0xf72
[  243.747582]  ? pagefault_out_of_memory+0x197/0x197
[  243.752520]  ? __lock_acquire+0x62f/0x4c20
[  243.756774]  ? percpu_ref_get_many+0x240/0x240
[  243.761359]  ? print_usage_bug+0xc0/0xc0
[  243.765426]  ? zap_class+0x640/0x640
[  243.769139]  ? print_usage_bug+0xc0/0xc0
[  243.773204]  ? print_usage_bug+0xc0/0xc0
[  243.777280]  ? zap_class+0x640/0x640
[  243.781006]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.786545]  ? find_held_lock+0x36/0x1c0
[  243.790623]  ? mark_held_locks+0xc7/0x130
[  243.794775]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  243.799876]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  243.804979]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  243.809562]  ? trace_hardirqs_on+0xbd/0x310
[  243.813886]  ? kasan_check_read+0x11/0x20
[  243.818030]  ? ___ratelimit+0x3b4/0x672
[  243.822010]  ? trace_hardirqs_off_caller+0x310/0x310
[  243.827110]  ? trace_hardirqs_on+0x310/0x310
[  243.831518]  ? lock_downgrade+0x900/0x900
[  243.835701]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  243.840803]  ? ___ratelimit+0x3b9/0x672
[  243.844783]  ? idr_get_free+0xf70/0xf70
[  243.848773]  ? find_held_lock+0x36/0x1c0
[  243.852853]  oom_kill_process.cold.27+0x10/0x903
[  243.857610]  ? zap_class+0x640/0x640
[  243.861346]  ? check_preemption_disabled+0x48/0x280
[  243.866370]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  243.871302]  ? kasan_check_read+0x11/0x20
[  243.875939]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.881229]  ? oom_evaluate_task+0x540/0x540
[  243.885640]  ? find_held_lock+0x36/0x1c0
[  243.889734]  ? out_of_memory+0x974/0x1430
[  243.893924]  ? lock_downgrade+0x900/0x900
[  243.898064]  ? check_preemption_disabled+0x48/0x280
[  243.903077]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  243.908001]  ? kasan_check_read+0x11/0x20
[  243.912144]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.917416]  ? rcu_softirq_qs+0x20/0x20
[  243.921386]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.926912]  ? oom_evaluate_task+0x302/0x540
[  243.931312]  out_of_memory+0xa84/0x1430
[  243.935300]  ? oom_killer_disable+0x3a0/0x3a0
[  243.939800]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  243.944758]  ? __ww_mutex_check_waiters+0x160/0x160
[  243.949771]  __alloc_pages_slowpath+0x2354/0x2e10
[  243.954630]  ? warn_alloc+0x120/0x120
[  243.958421]  ? mark_held_locks+0x130/0x130
[  243.962653]  ? find_get_entry+0xaae/0x1120
[  243.966884]  ? filemap_map_pages+0x1a20/0x1a20
[  243.971477]  ? zap_class+0x640/0x640
[  243.975215]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.980743]  ? check_preemption_disabled+0x48/0x280
[  243.985748]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.991411]  ? should_fail+0x22d/0xd01
[  243.995297]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  244.000409]  ? zap_class+0x640/0x640
[  244.004132]  ? __lock_is_held+0xb5/0x140
[  244.008189]  ? mark_held_locks+0x130/0x130
[  244.012415]  ? lock_release+0xa00/0xa00
[  244.016410]  ? perf_trace_sched_process_exec+0x860/0x860
[  244.021894]  ? xa_load+0x2ba/0x460
[  244.025442]  ? lock_downgrade+0x900/0x900
[  244.029588]  ? __might_sleep+0x95/0x190
[  244.033595]  __alloc_pages_nodemask+0xa80/0xde0
[  244.038259]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  244.043293]  ? __page_cache_alloc+0x191/0x5c0
[  244.047791]  ? xa_load+0x2e1/0x460
[  244.051318]  ? xa_clear_mark+0x40/0x40
[  244.055210]  ? zap_class+0x640/0x640
[  244.058929]  ? zap_class+0x640/0x640
[  244.062633]  ? zap_class+0x640/0x640
[  244.066348]  ? __do_page_cache_readahead+0x663/0x810
[  244.071518]  ? find_held_lock+0x36/0x1c0
[  244.075573]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  244.081121]  alloc_pages_current+0x173/0x350
[  244.085529]  __page_cache_alloc+0x38c/0x5c0
[  244.089889]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.094832]  ? kasan_check_read+0x11/0x20
[  244.098974]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.104248]  ? generic_perform_write+0x6a0/0x6a0
[  244.109008]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.114543]  ? check_preemption_disabled+0x48/0x280
[  244.119589]  filemap_fault+0x1595/0x25f0
[  244.123667]  ? __lock_page_or_retry+0xa00/0xa00
[  244.128338]  ? mark_held_locks+0x130/0x130
[  244.132583]  ? filemap_map_pages+0xd6b/0x1a20
[  244.137083]  ? lock_downgrade+0x900/0x900
[  244.141229]  ? check_preemption_disabled+0x48/0x280
[  244.146248]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.151176]  ? kasan_check_read+0x11/0x20
[  244.155322]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.160609]  ? rcu_softirq_qs+0x20/0x20
[  244.164606]  ? filemap_map_pages+0xd92/0x1a20
[  244.169112]  ? print_usage_bug+0xc0/0xc0
[  244.173181]  ? find_get_entries_tag+0x1400/0x1400
[  244.178024]  ? __kasan_slab_free+0x102/0x150
[  244.182434]  ? kasan_slab_free+0xe/0x10
[  244.186408]  ? kmem_cache_free+0x83/0x290
[  244.190557]  ? __sigqueue_free.part.29+0x74/0x90
[  244.195340]  ? lock_acquire+0x1ed/0x520
[  244.199323]  ? ext4_filemap_fault+0x7a/0xad
[  244.203657]  ? lock_release+0xa00/0xa00
[  244.207654]  ? perf_trace_sched_process_exec+0x860/0x860
[  244.213106]  ? print_usage_bug+0xc0/0xc0
[  244.217196]  ? print_usage_bug+0xc0/0xc0
[  244.221286]  ? down_read+0x8d/0x120
[  244.224909]  ? ext4_filemap_fault+0x7a/0xad
[  244.229233]  ? __down_interruptible+0x700/0x700
[  244.233949]  ext4_filemap_fault+0x82/0xad
[  244.238100]  __do_fault+0x100/0x6b0
[  244.241730]  ? pmd_devmap_trans_unstable+0x220/0x220
[  244.246855]  ? mark_held_locks+0x130/0x130
[  244.251092]  ? mark_held_locks+0x130/0x130
[  244.255333]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  244.260886]  ? rcu_pm_notify+0xc0/0xc0
[  244.264785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.270338]  __handle_mm_fault+0x3ea0/0x5be0
[  244.274761]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  244.279614]  ? _raw_spin_unlock_irq+0x27/0x80
[  244.284133]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  244.288722]  ? trace_hardirqs_on+0xbd/0x310
[  244.293054]  ? kasan_check_read+0x11/0x20
[  244.297218]  ? __set_current_blocked+0xdf/0x120
[  244.301891]  ? trace_hardirqs_off_caller+0x310/0x310
[  244.307006]  ? zap_class+0x640/0x640
[  244.310720]  ? zap_class+0x640/0x640
[  244.314443]  ? find_held_lock+0x36/0x1c0
[  244.318517]  ? handle_mm_fault+0x42a/0xc70
[  244.322769]  ? lock_downgrade+0x900/0x900
[  244.326919]  ? check_preemption_disabled+0x48/0x280
[  244.331938]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.336871]  ? kasan_check_read+0x11/0x20
[  244.341022]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.346315]  ? rcu_softirq_qs+0x20/0x20
[  244.350289]  ? trace_hardirqs_off_caller+0x310/0x310
[  244.355422]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.360959]  ? check_preemption_disabled+0x48/0x280
[  244.365985]  handle_mm_fault+0x54f/0xc70
[  244.370052]  ? __handle_mm_fault+0x5be0/0x5be0
[  244.374643]  ? find_vma+0x34/0x190
[  244.378189]  __do_page_fault+0x5e8/0xe60
[  244.382265]  ? exit_to_usermode_loop+0x1f4/0x380
[  244.387028]  do_page_fault+0xf2/0x7e0
[  244.390858]  ? vmalloc_sync_all+0x30/0x30
[  244.395004]  ? error_entry+0x70/0xd0
[  244.398716]  ? trace_hardirqs_off_caller+0xbb/0x310
[  244.403757]  ? trace_hardirqs_on_caller+0xc0/0x310
[  244.408678]  ? syscall_return_slowpath+0x5e0/0x5e0
[  244.413647]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  244.418485]  ? trace_hardirqs_on_caller+0x310/0x310
[  244.423512]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  244.428966]  ? prepare_exit_to_usermode+0x291/0x3b0
[  244.433978]  ? page_fault+0x8/0x30
[  244.437516]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  244.442358]  ? page_fault+0x8/0x30
[  244.445907]  page_fault+0x1e/0x30
[  244.449351] RIP: 0033:0x45db60
[  244.452546] Code: Bad RIP value.
[  244.455896] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  244.461246] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  244.468509] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  244.475766] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  244.483024] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  244.490281] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  244.497597] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  244.497602] warn_alloc_show_mem: 1 callbacks suppressed
[  244.497608] Mem-Info:
[  244.504887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  244.510260] active_anon:54051 inactive_anon:192 isolated_anon:0
[  244.510260]  active_file:9 inactive_file:20 isolated_file:0
[  244.510260]  unevictable:0 dirty:0 writeback:0 unstable:0
[  244.510260]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  244.510260]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  244.510260]  free:13735 free_pcp:540 free_cma:0
[  244.512636] Call Trace:
[  244.522033] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  244.554806]  <IRQ>
[  244.557397] 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
[  244.584831]  dump_stack+0x244/0x39d
[  244.586954] lowmem_reserve[]: 0 2818 6321 6321
[  244.613060]  ? dump_stack_print_info.cold.1+0x20/0x20
[  244.616664] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  244.621250]  warn_alloc.cold.116+0xb7/0x1bd
[  244.626409] lowmem_reserve[]: 0 0 3503 3503
[  244.654161]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  244.658463] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  244.662776]  ? lock_downgrade+0x900/0x900
[  244.667592] lowmem_reserve[]: 0 0 0 0
[  244.696646]  ? trace_hardirqs_off+0xb8/0x310
[  244.700767] 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
[  244.704573]  ? trace_hardirqs_off+0xb8/0x310
[  244.708952] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  244.722481]  __alloc_pages_slowpath+0x26e8/0x2e10
[  244.726880] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  244.742355]  ? warn_alloc+0x120/0x120
[  244.747157] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  244.761359]  ? print_usage_bug+0xc0/0xc0
[  244.765140] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  244.773963]  ? warn_alloc+0x120/0x120
[  244.777998] 273 total pagecache pages
[  244.786562]  ? warn_alloc+0x120/0x120
[  244.790353] 0 pages in swap cache
[  244.794141]  ? print_usage_bug+0xc0/0xc0
[  244.797918] Swap cache stats: add 0, delete 0, find 0/0
[  244.801358]  ? kvm_clock_read+0x18/0x30
[  244.805395] Free swap  = 0kB
[  244.810746]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  244.814690] Total swap = 0kB
[  244.817696]  ? print_usage_bug+0xc0/0xc0
[  244.822685] 1965979 pages RAM
[  244.825691]  ? __lock_acquire+0x62f/0x4c20
[  244.829731] 0 pages HighMem/MovableOnly
[  244.832853]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.837060] 342853 pages reserved
[  244.841026]  ? should_fail+0x22d/0xd01
[  244.846535] 0 pages cma reserved
[  244.849979]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.853919] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  244.857200]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  244.862526] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  244.868949]  ? __lock_acquire+0x62f/0x4c20
[  244.874025] syz-fuzzer cpuset=/ mems_allowed=0
[  244.884264]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  244.898132]  ? __lock_acquire+0x62f/0x4c20
[  244.902380]  ? should_fail+0x22d/0xd01
[  244.906261]  ? rcu_irq_exit+0x1a2/0x390
[  244.910261]  ? mark_held_locks+0x130/0x130
[  244.914508]  ? mark_held_locks+0x130/0x130
[  244.918754]  ? mark_held_locks+0xc7/0x130
[  244.922896]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  244.927907]  ? zap_class+0x640/0x640
[  244.931620]  ? print_usage_bug+0xc0/0xc0
[  244.935685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.941218]  ? check_preemption_disabled+0x48/0x280
[  244.946236]  ? __lock_is_held+0xb5/0x140
[  244.950300]  __alloc_pages_nodemask+0xa80/0xde0
[  244.954964]  ? zap_class+0x640/0x640
[  244.958679]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  244.963696]  ? find_held_lock+0x36/0x1c0
[  244.967762]  ? ____cache_alloc_node+0x1c7/0x1e0
[  244.972525]  ? lock_downgrade+0x900/0x900
[  244.976678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.982216]  cache_grow_begin+0xa5/0x8c0
[  244.986269]  ? do_raw_spin_unlock+0xa7/0x330
[  244.990695]  fallback_alloc+0x204/0x2e0
[  244.994683]  ____cache_alloc_node+0x1c7/0x1e0
[  244.999176]  kmem_cache_alloc_node+0xe3/0x730
[  245.003666]  ? ipv6_get_ifaddr+0x42e/0x620
[  245.007903]  __alloc_skb+0x119/0x770
[  245.011613]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.016899]  ? netdev_alloc_frag+0x1f0/0x1f0
[  245.021304]  ? lock_downgrade+0x900/0x900
[  245.025452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.030987]  ? refcount_sub_and_test_checked+0x203/0x310
[  245.036435]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  245.041885]  ? addrconf_rs_timer+0x690/0x690
[  245.046302]  ndisc_alloc_skb+0x144/0x340
[  245.050379]  ndisc_send_rs+0x331/0x6e0
[  245.054263]  addrconf_rs_timer+0x314/0x690
[  245.058518]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.062778]  call_timer_fn+0x272/0x920
[  245.066662]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.070895]  ? process_timeout+0x40/0x40
[  245.074955]  ? __run_timers+0x7da/0xc70
[  245.078927]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.083413]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.087904]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.092166]  ? lockdep_hardirqs_on+0x296/0x5b0
[  245.096779]  ? trace_hardirqs_on+0xbd/0x310
[  245.101125]  ? kasan_check_read+0x11/0x20
[  245.105265]  ? __run_timers+0x7da/0xc70
[  245.109236]  ? trace_hardirqs_off_caller+0x310/0x310
[  245.114337]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.118582]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.122811]  __run_timers+0x7e5/0xc70
[  245.126658]  ? timer_fixup_init+0x70/0x70
[  245.130810]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  245.135847]  ? zap_class+0x640/0x640
[  245.139577]  ? enqueue_hrtimer+0x1a5/0x560
[  245.143811]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  245.149012]  ? find_held_lock+0x36/0x1c0
[  245.153078]  ? zap_class+0x640/0x640
[  245.156794]  ? pvclock_read_flags+0x160/0x160
[  245.161303]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.166850]  ? check_preemption_disabled+0x48/0x280
[  245.171913]  ? __lock_is_held+0xb5/0x140
[  245.176009]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.181547]  ? check_preemption_disabled+0x48/0x280
[  245.186582]  run_timer_softirq+0x52/0xb0
[  245.190643]  ? rcu_read_lock_sched_held+0x14f/0x180
[  245.195658]  __do_softirq+0x308/0xb7e
[  245.199460]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  245.203957]  ? lock_downgrade+0x900/0x900
[  245.208111]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  245.213225]  ? pvclock_read_flags+0x160/0x160
[  245.217721]  ? lapic_next_event+0x5a/0x90
[  245.221872]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.227416]  ? kvm_clock_read+0x18/0x30
[  245.231389]  ? kvm_sched_clock_read+0x9/0x20
[  245.235813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.241391]  ? check_preemption_disabled+0x48/0x280
[  245.246415]  irq_exit+0x17f/0x1c0
[  245.249885]  smp_apic_timer_interrupt+0x1cb/0x760
[  245.254739]  ? smp_reschedule_interrupt+0x109/0x650
[  245.259759]  ? smp_call_function_single_interrupt+0x650/0x650
[  245.265661]  ? interrupt_entry+0xb5/0xc0
[  245.269741]  ? trace_hardirqs_off_caller+0xbb/0x310
[  245.274757]  ? trace_hardirqs_off_caller+0xbb/0x310
[  245.279773]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.284618]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.289627]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.294649]  ? task_prio+0x50/0x50
[  245.298195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.303735]  ? check_preemption_disabled+0x48/0x280
[  245.308773]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.313634]  apic_timer_interrupt+0xf/0x20
[  245.317866]  </IRQ>
[  245.320105] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  245.325038] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  245.343943] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  245.351670] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  245.358934] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  245.366198] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  245.373466] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  245.380734] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  245.388042]  skb_clone+0x1bb/0x500
[  245.391596]  ? finish_task_switch+0x2f4/0x910
[  245.396087]  ? skb_split+0x11e0/0x11e0
[  245.399973]  ? preempt_notifier_register+0x200/0x200
[  245.405070]  ? __switch_to_asm+0x34/0x70
[  245.409139]  ? __switch_to_asm+0x34/0x70
[  245.413224]  ? __switch_to_asm+0x40/0x70
[  245.417284]  ? __switch_to_asm+0x34/0x70
[  245.421346]  ? __switch_to_asm+0x40/0x70
[  245.425400]  ? __switch_to_asm+0x34/0x70
[  245.429457]  ? __switch_to_asm+0x40/0x70
[  245.433518]  ? __switch_to_asm+0x34/0x70
[  245.437578]  ? __switch_to_asm+0x34/0x70
[  245.441632]  ? __switch_to_asm+0x40/0x70
[  245.445688]  ? __switch_to_asm+0x34/0x70
[  245.449755]  bpf_clone_redirect+0xb9/0x490
[  245.453991]  ? __schedule+0x8d7/0x21d0
[  245.457885]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  245.462907]  ? __sched_text_start+0x8/0x8
[  245.467061]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  245.471836]  ? find_held_lock+0x36/0x1c0
[  245.475905]  ? lock_acquire+0x1ed/0x520
[  245.479887]  ? bpf_test_run+0x3cb/0x780
[  245.483865]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.489407]  ? check_preemption_disabled+0x48/0x280
[  245.494430]  ? kasan_check_read+0x11/0x20
[  245.498576]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.503855]  ? rcu_softirq_qs+0x20/0x20
[  245.507836]  ? preempt_schedule+0x4d/0x60
[  245.511983]  ? ___preempt_schedule+0x16/0x18
[  245.516428]  ? bpf_test_run+0x25d/0x780
[  245.520411]  ? netlink_diag_dump+0x2a0/0x2a0
[  245.524822]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.530378]  ? bpf_test_init.isra.10+0x70/0x100
[  245.535052]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  245.539814]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  245.544662]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  245.550194]  ? fput+0x130/0x1a0
[  245.553528]  ? __bpf_prog_get+0x9b/0x290
[  245.557584]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  245.562418]  ? bpf_prog_test_run+0x130/0x1a0
[  245.566846]  ? __x64_sys_bpf+0x3d8/0x520
[  245.570909]  ? bpf_prog_get+0x20/0x20
[  245.574725]  ? do_syscall_64+0x1b9/0x820
[  245.578797]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  245.584196]  ? syscall_return_slowpath+0x5e0/0x5e0
[  245.589148]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.594162]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  245.599196]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  245.605886]  ? __switch_to_asm+0x40/0x70
[  245.609943]  ? __switch_to_asm+0x34/0x70
[  245.614007]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.618869]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  245.624242] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  245.624336] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  245.631258] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  245.631266] Call Trace:
[  245.637833] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  245.647082]  <IRQ>
[  245.649916] syz-executor3 cpuset=syz3 mems_allowed=0
[  245.660451]  dump_stack+0x244/0x39d
[  245.671296]  ? dump_stack_print_info.cold.1+0x20/0x20
[  245.676516]  warn_alloc.cold.116+0xb7/0x1bd
[  245.680852]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  245.685716]  ? lock_downgrade+0x900/0x900
[  245.689874]  ? trace_hardirqs_off+0xb8/0x310
[  245.694290]  ? trace_hardirqs_off+0xb8/0x310
[  245.698708]  __alloc_pages_slowpath+0x26e8/0x2e10
[  245.703578]  ? warn_alloc+0x120/0x120
[  245.707391]  ? print_usage_bug+0xc0/0xc0
[  245.711453]  ? warn_alloc+0x120/0x120
[  245.715270]  ? warn_alloc+0x120/0x120
[  245.719088]  ? print_usage_bug+0xc0/0xc0
[  245.723147]  ? kvm_clock_read+0x18/0x30
[  245.727121]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  245.732138]  ? print_usage_bug+0xc0/0xc0
[  245.736207]  ? __lock_acquire+0x62f/0x4c20
[  245.740461]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.746271]  ? should_fail+0x22d/0xd01
[  245.750159]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.755439]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  245.760542]  ? __lock_acquire+0x62f/0x4c20
[  245.764781]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  245.769886]  ? __lock_acquire+0x62f/0x4c20
[  245.774119]  ? should_fail+0x22d/0xd01
[  245.778020]  ? rcu_irq_exit+0x1a2/0x390
[  245.782003]  ? mark_held_locks+0x130/0x130
[  245.786246]  ? mark_held_locks+0x130/0x130
[  245.790504]  ? mark_held_locks+0xc7/0x130
[  245.794652]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  245.799718]  ? zap_class+0x640/0x640
[  245.803427]  ? print_usage_bug+0xc0/0xc0
[  245.807492]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.813046]  ? check_preemption_disabled+0x48/0x280
[  245.818073]  ? __lock_is_held+0xb5/0x140
[  245.822161]  __alloc_pages_nodemask+0xa80/0xde0
[  245.826838]  ? zap_class+0x640/0x640
[  245.830565]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  245.835591]  ? find_held_lock+0x36/0x1c0
[  245.839668]  ? ____cache_alloc_node+0x1c7/0x1e0
[  245.844339]  ? lock_downgrade+0x900/0x900
[  245.848495]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.854038]  cache_grow_begin+0xa5/0x8c0
[  245.858142]  ? do_raw_spin_unlock+0xa7/0x330
[  245.862559]  fallback_alloc+0x204/0x2e0
[  245.866537]  ____cache_alloc_node+0x1c7/0x1e0
[  245.871040]  kmem_cache_alloc_node+0xe3/0x730
[  245.876043]  ? ipv6_get_ifaddr+0x42e/0x620
[  245.880293]  __alloc_skb+0x119/0x770
[  245.884008]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.889293]  ? netdev_alloc_frag+0x1f0/0x1f0
[  245.893716]  ? lock_downgrade+0x900/0x900
[  245.897926]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.903475]  ? refcount_sub_and_test_checked+0x203/0x310
[  245.908943]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  245.914413]  ? addrconf_rs_timer+0x690/0x690
[  245.918840]  ndisc_alloc_skb+0x144/0x340
[  245.922905]  ndisc_send_rs+0x331/0x6e0
[  245.926795]  addrconf_rs_timer+0x314/0x690
[  245.931041]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.935290]  call_timer_fn+0x272/0x920
[  245.939193]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.943453]  ? process_timeout+0x40/0x40
[  245.947537]  ? mark_held_locks+0xc7/0x130
[  245.951709]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.956198]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.960686]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.964917]  ? lockdep_hardirqs_on+0x296/0x5b0
[  245.969533]  ? trace_hardirqs_on+0xbd/0x310
[  245.973857]  ? kasan_check_read+0x11/0x20
[  245.978025]  ? __run_timers+0x7da/0xc70
[  245.981996]  ? trace_hardirqs_off_caller+0x310/0x310
[  245.987113]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.991351]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.995580]  __run_timers+0x7e5/0xc70
[  245.999394]  ? timer_fixup_init+0x70/0x70
[  246.003545]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  246.008571]  ? zap_class+0x640/0x640
[  246.012292]  ? print_usage_bug+0xc0/0xc0
[  246.016351]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  246.021577]  ? find_held_lock+0x36/0x1c0
[  246.025644]  ? zap_class+0x640/0x640
[  246.029361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.034988]  ? check_preemption_disabled+0x48/0x280
[  246.040018]  ? __lock_is_held+0xb5/0x140
[  246.044079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.049614]  ? check_preemption_disabled+0x48/0x280
[  246.054657]  run_timer_softirq+0x52/0xb0
[  246.058731]  ? rcu_read_lock_sched_held+0x14f/0x180
[  246.063750]  __do_softirq+0x308/0xb7e
[  246.067553]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  246.072046]  ? lock_downgrade+0x900/0x900
[  246.076198]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  246.081325]  ? pvclock_read_flags+0x160/0x160
[  246.085822]  ? lapic_next_event+0x5a/0x90
[  246.089983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.095525]  ? kvm_clock_read+0x18/0x30
[  246.099499]  ? kvm_sched_clock_read+0x9/0x20
[  246.103910]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.109463]  ? check_preemption_disabled+0x48/0x280
[  246.114488]  irq_exit+0x17f/0x1c0
[  246.117961]  smp_apic_timer_interrupt+0x1cb/0x760
[  246.122801]  ? smp_reschedule_interrupt+0x109/0x650
[  246.127836]  ? smp_call_function_single_interrupt+0x650/0x650
[  246.133724]  ? interrupt_entry+0xb5/0xc0
[  246.137784]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.142797]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.147823]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.152674]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.157700]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.162730]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.167581]  apic_timer_interrupt+0xf/0x20
[  246.171809]  </IRQ>
[  246.174054] RIP: 0010:dump_stack+0x358/0x39d
[  246.178462] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  246.197362] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  246.205069] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  246.212346] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  246.219612] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  246.226880] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  246.234146] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  246.241430]  ? dump_stack+0x34f/0x39d
[  246.245254]  ? dump_stack_print_info.cold.1+0x20/0x20
[  246.250448]  ? mark_held_locks+0x130/0x130
[  246.254681]  ? mark_held_locks+0x130/0x130
[  246.258932]  dump_header+0x27b/0xf72
[  246.262662]  ? pagefault_out_of_memory+0x197/0x197
[  246.267600]  ? __lock_acquire+0x62f/0x4c20
[  246.271847]  ? percpu_ref_get_many+0x240/0x240
[  246.276435]  ? print_usage_bug+0xc0/0xc0
[  246.280501]  ? zap_class+0x640/0x640
[  246.284215]  ? print_usage_bug+0xc0/0xc0
[  246.288273]  ? print_usage_bug+0xc0/0xc0
[  246.292335]  ? zap_class+0x640/0x640
[  246.296051]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.301597]  ? find_held_lock+0x36/0x1c0
[  246.305674]  ? mark_held_locks+0xc7/0x130
[  246.309819]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  246.314923]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  246.320019]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  246.324594]  ? trace_hardirqs_on+0xbd/0x310
[  246.328926]  ? kasan_check_read+0x11/0x20
[  246.333064]  ? ___ratelimit+0x3b4/0x672
[  246.337030]  ? trace_hardirqs_off_caller+0x310/0x310
[  246.342148]  ? trace_hardirqs_on+0x310/0x310
[  246.346565]  ? lock_downgrade+0x900/0x900
[  246.350712]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  246.355809]  ? ___ratelimit+0x3b9/0x672
[  246.359840]  ? idr_get_free+0xf70/0xf70
[  246.363810]  ? find_held_lock+0x36/0x1c0
[  246.367894]  oom_kill_process.cold.27+0x10/0x903
[  246.372643]  ? zap_class+0x640/0x640
[  246.376349]  ? check_preemption_disabled+0x48/0x280
[  246.381360]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  246.386280]  ? kasan_check_read+0x11/0x20
[  246.390427]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.395722]  ? oom_evaluate_task+0x540/0x540
[  246.400126]  ? find_held_lock+0x36/0x1c0
[  246.404203]  ? out_of_memory+0x974/0x1430
[  246.408362]  ? lock_downgrade+0x900/0x900
[  246.412515]  ? check_preemption_disabled+0x48/0x280
[  246.417531]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  246.422473]  ? kasan_check_read+0x11/0x20
[  246.426615]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.431888]  ? rcu_softirq_qs+0x20/0x20
[  246.435892]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.441418]  ? oom_evaluate_task+0x302/0x540
[  246.445821]  out_of_memory+0xa84/0x1430
[  246.449807]  ? oom_killer_disable+0x3a0/0x3a0
[  246.454336]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  246.459274]  ? __ww_mutex_check_waiters+0x160/0x160
[  246.464358]  __alloc_pages_slowpath+0x2354/0x2e10
[  246.469248]  ? warn_alloc+0x120/0x120
[  246.473041]  ? mark_held_locks+0x130/0x130
[  246.477282]  ? find_get_entry+0xaae/0x1120
[  246.481547]  ? filemap_map_pages+0x1a20/0x1a20
[  246.486150]  ? zap_class+0x640/0x640
[  246.489864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.495425]  ? check_preemption_disabled+0x48/0x280
[  246.500478]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.506010]  ? should_fail+0x22d/0xd01
[  246.509945]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  246.515086]  ? zap_class+0x640/0x640
[  246.518849]  ? __lock_is_held+0xb5/0x140
[  246.522906]  ? mark_held_locks+0x130/0x130
[  246.527152]  ? lock_release+0xa00/0xa00
[  246.531125]  ? perf_trace_sched_process_exec+0x860/0x860
[  246.536579]  ? xa_load+0x2ba/0x460
[  246.540134]  ? lock_downgrade+0x900/0x900
[  246.544283]  ? __might_sleep+0x95/0x190
[  246.548263]  __alloc_pages_nodemask+0xa80/0xde0
[  246.552927]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  246.557934]  ? __page_cache_alloc+0x191/0x5c0
[  246.562420]  ? xa_load+0x2e1/0x460
[  246.565958]  ? xa_clear_mark+0x40/0x40
[  246.569872]  ? zap_class+0x640/0x640
[  246.573599]  ? zap_class+0x640/0x640
[  246.577318]  ? zap_class+0x640/0x640
[  246.581049]  ? __do_page_cache_readahead+0x663/0x810
[  246.586152]  ? find_held_lock+0x36/0x1c0
[  246.590230]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  246.595797]  alloc_pages_current+0x173/0x350
[  246.600214]  __page_cache_alloc+0x38c/0x5c0
[  246.604525]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  246.609462]  ? kasan_check_read+0x11/0x20
[  246.613605]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.618880]  ? generic_perform_write+0x6a0/0x6a0
[  246.623638]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.629192]  ? check_preemption_disabled+0x48/0x280
[  246.634212]  filemap_fault+0x1595/0x25f0
[  246.638288]  ? __lock_page_or_retry+0xa00/0xa00
[  246.642956]  ? mark_held_locks+0x130/0x130
[  246.647191]  ? filemap_map_pages+0xd6b/0x1a20
[  246.651691]  ? lock_downgrade+0x900/0x900
[  246.655839]  ? check_preemption_disabled+0x48/0x280
[  246.660860]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  246.665783]  ? kasan_check_read+0x11/0x20
[  246.669922]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.675209]  ? rcu_softirq_qs+0x20/0x20
[  246.679220]  ? filemap_map_pages+0xd92/0x1a20
[  246.683728]  ? print_usage_bug+0xc0/0xc0
[  246.687797]  ? find_get_entries_tag+0x1400/0x1400
[  246.692655]  ? __kasan_slab_free+0x102/0x150
[  246.697063]  ? kasan_slab_free+0xe/0x10
[  246.701096]  ? kmem_cache_free+0x83/0x290
[  246.705242]  ? __sigqueue_free.part.29+0x74/0x90
[  246.710014]  ? lock_acquire+0x1ed/0x520
[  246.714006]  ? ext4_filemap_fault+0x7a/0xad
[  246.718343]  ? lock_release+0xa00/0xa00
[  246.722325]  ? perf_trace_sched_process_exec+0x860/0x860
[  246.727785]  ? print_usage_bug+0xc0/0xc0
[  246.731864]  ? print_usage_bug+0xc0/0xc0
[  246.735931]  ? down_read+0x8d/0x120
[  246.739574]  ? ext4_filemap_fault+0x7a/0xad
[  246.743896]  ? __down_interruptible+0x700/0x700
[  246.748587]  ext4_filemap_fault+0x82/0xad
[  246.752730]  __do_fault+0x100/0x6b0
[  246.756358]  ? pmd_devmap_trans_unstable+0x220/0x220
[  246.761464]  ? mark_held_locks+0x130/0x130
[  246.765695]  ? mark_held_locks+0x130/0x130
[  246.769924]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  246.775458]  ? rcu_pm_notify+0xc0/0xc0
[  246.779361]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.784907]  __handle_mm_fault+0x3ea0/0x5be0
[  246.789345]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  246.794184]  ? _raw_spin_unlock_irq+0x27/0x80
[  246.798720]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  246.803294]  ? trace_hardirqs_on+0xbd/0x310
[  246.807632]  ? kasan_check_read+0x11/0x20
[  246.811776]  ? __set_current_blocked+0xdf/0x120
[  246.816444]  ? trace_hardirqs_off_caller+0x310/0x310
[  246.821557]  ? zap_class+0x640/0x640
[  246.825280]  ? zap_class+0x640/0x640
[  246.829021]  ? find_held_lock+0x36/0x1c0
[  246.833089]  ? handle_mm_fault+0x42a/0xc70
[  246.837323]  ? lock_downgrade+0x900/0x900
[  246.841472]  ? check_preemption_disabled+0x48/0x280
[  246.846489]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  246.851434]  ? kasan_check_read+0x11/0x20
[  246.855580]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.860860]  ? rcu_softirq_qs+0x20/0x20
[  246.864839]  ? trace_hardirqs_off_caller+0x310/0x310
[  246.869948]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.875497]  ? check_preemption_disabled+0x48/0x280
[  246.880517]  handle_mm_fault+0x54f/0xc70
[  246.884583]  ? __handle_mm_fault+0x5be0/0x5be0
[  246.889171]  ? find_vma+0x34/0x190
[  246.892717]  __do_page_fault+0x5e8/0xe60
[  246.896787]  ? exit_to_usermode_loop+0x1f4/0x380
[  246.901565]  do_page_fault+0xf2/0x7e0
[  246.905369]  ? vmalloc_sync_all+0x30/0x30
[  246.909521]  ? error_entry+0x70/0xd0
[  246.913252]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.918271]  ? trace_hardirqs_on_caller+0xc0/0x310
[  246.923200]  ? syscall_return_slowpath+0x5e0/0x5e0
[  246.928679]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.933522]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.938543]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  246.944002]  ? prepare_exit_to_usermode+0x291/0x3b0
[  246.949021]  ? page_fault+0x8/0x30
[  246.952568]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.957415]  ? page_fault+0x8/0x30
[  246.960960]  page_fault+0x1e/0x30
[  246.964413] RIP: 0033:0x45db60
[  246.967614] Code: Bad RIP value.
[  246.970980] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  246.976340] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  246.983606] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  246.990876] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  246.998142] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  247.005413] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  247.012701] warn_alloc_show_mem: 1 callbacks suppressed
[  247.012713] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  247.012715] Mem-Info:
[  247.012746] active_anon:54051 inactive_anon:192 isolated_anon:0
[  247.012746]  active_file:9 inactive_file:20 isolated_file:0
[  247.012746]  unevictable:0 dirty:0 writeback:0 unstable:0
[  247.012746]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  247.012746]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  247.012746]  free:13735 free_pcp:540 free_cma:0
[  247.018092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  247.025369] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  247.027773] Call Trace:
[  247.060569] 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
[  247.069935]  <IRQ>
[  247.097329] lowmem_reserve[]: 0 2818 6321 6321
[  247.099911]  dump_stack+0x244/0x39d
[  247.125985] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  247.128132]  ? dump_stack_print_info.cold.1+0x20/0x20
[  247.132682] lowmem_reserve[]: 0 0 3503 3503
[  247.136313]  warn_alloc.cold.116+0xb7/0x1bd
[  247.164040] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  247.169226]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  247.173519] lowmem_reserve[]: 0 0 0 0
[  247.177845]  ? lock_downgrade+0x900/0x900
[  247.206875] 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
[  247.211721]  ? trace_hardirqs_off+0xb8/0x310
[  247.215486] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  247.219623]  ? trace_hardirqs_off+0xb8/0x310
[  247.233269] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  247.237701]  __alloc_pages_slowpath+0x26e8/0x2e10
[  247.252952] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  247.257362]  ? warn_alloc+0x120/0x120
[  247.271453] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  247.276294]  ? print_usage_bug+0xc0/0xc0
[  247.285115] 273 total pagecache pages
[  247.288907]  ? warn_alloc+0x120/0x120
[  247.297461] 0 pages in swap cache
[  247.301554]  ? warn_alloc+0x120/0x120
[  247.305351] Swap cache stats: add 0, delete 0, find 0/0
[  247.309141]  ? print_usage_bug+0xc0/0xc0
[  247.312563] Free swap  = 0kB
[  247.316346]  ? kvm_clock_read+0x18/0x30
[  247.321678] Total swap = 0kB
[  247.325737]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  247.328723] 1965979 pages RAM
[  247.332680]  ? print_usage_bug+0xc0/0xc0
[  247.335683] 0 pages HighMem/MovableOnly
[  247.340681]  ? __lock_acquire+0x62f/0x4c20
[  247.343758] 342853 pages reserved
[  247.347822]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.351772] 0 pages cma reserved
[  247.355994]  ? should_fail+0x22d/0xd01
[  247.359482] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  247.364942]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.364958]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.364972]  ? __lock_acquire+0x62f/0x4c20
[  247.368379] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  247.372207]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.378703] syz-fuzzer cpuset=/ mems_allowed=0
[  247.383984]  ? __lock_acquire+0x62f/0x4c20
[  247.417336]  ? should_fail+0x22d/0xd01
[  247.421231]  ? rcu_irq_exit+0x1a2/0x390
[  247.425211]  ? mark_held_locks+0x130/0x130
[  247.429440]  ? mark_held_locks+0x130/0x130
[  247.433670]  ? mark_held_locks+0xc7/0x130
[  247.437832]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  247.442867]  ? zap_class+0x640/0x640
[  247.446578]  ? print_usage_bug+0xc0/0xc0
[  247.450642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.456178]  ? check_preemption_disabled+0x48/0x280
[  247.461196]  ? __lock_is_held+0xb5/0x140
[  247.465253]  __alloc_pages_nodemask+0xa80/0xde0
[  247.469915]  ? zap_class+0x640/0x640
[  247.473627]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  247.478661]  ? find_held_lock+0x36/0x1c0
[  247.482752]  ? ____cache_alloc_node+0x1c7/0x1e0
[  247.487435]  ? lock_downgrade+0x900/0x900
[  247.491614]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.497156]  cache_grow_begin+0xa5/0x8c0
[  247.501212]  ? do_raw_spin_unlock+0xa7/0x330
[  247.505637]  fallback_alloc+0x204/0x2e0
[  247.509615]  ____cache_alloc_node+0x1c7/0x1e0
[  247.514156]  kmem_cache_alloc_node+0xe3/0x730
[  247.518686]  ? ipv6_get_ifaddr+0x42e/0x620
[  247.522922]  __alloc_skb+0x119/0x770
[  247.526626]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.531910]  ? netdev_alloc_frag+0x1f0/0x1f0
[  247.536328]  ? lock_downgrade+0x900/0x900
[  247.540506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.546071]  ? refcount_sub_and_test_checked+0x203/0x310
[  247.551518]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  247.556966]  ? addrconf_rs_timer+0x690/0x690
[  247.561393]  ndisc_alloc_skb+0x144/0x340
[  247.565453]  ndisc_send_rs+0x331/0x6e0
[  247.569358]  addrconf_rs_timer+0x314/0x690
[  247.573591]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.577845]  call_timer_fn+0x272/0x920
[  247.581725]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.585969]  ? process_timeout+0x40/0x40
[  247.590054]  ? __run_timers+0x7da/0xc70
[  247.594029]  ? _raw_spin_unlock_irq+0x27/0x80
[  247.598518]  ? _raw_spin_unlock_irq+0x27/0x80
[  247.603023]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.607254]  ? lockdep_hardirqs_on+0x296/0x5b0
[  247.611844]  ? trace_hardirqs_on+0xbd/0x310
[  247.616179]  ? kasan_check_read+0x11/0x20
[  247.620324]  ? __run_timers+0x7da/0xc70
[  247.624302]  ? trace_hardirqs_off_caller+0x310/0x310
[  247.629414]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.633653]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.637921]  __run_timers+0x7e5/0xc70
[  247.641761]  ? timer_fixup_init+0x70/0x70
[  247.645916]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  247.650934]  ? zap_class+0x640/0x640
[  247.654683]  ? enqueue_hrtimer+0x1a5/0x560
[  247.658922]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  247.664143]  ? find_held_lock+0x36/0x1c0
[  247.668226]  ? zap_class+0x640/0x640
[  247.671948]  ? pvclock_read_flags+0x160/0x160
[  247.676457]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.681993]  ? check_preemption_disabled+0x48/0x280
[  247.687018]  ? __lock_is_held+0xb5/0x140
[  247.691093]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.696636]  ? check_preemption_disabled+0x48/0x280
[  247.701654]  run_timer_softirq+0x52/0xb0
[  247.705729]  ? rcu_read_lock_sched_held+0x14f/0x180
[  247.710753]  __do_softirq+0x308/0xb7e
[  247.714557]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  247.719066]  ? lock_downgrade+0x900/0x900
[  247.723221]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  247.728337]  ? pvclock_read_flags+0x160/0x160
[  247.732845]  ? lapic_next_event+0x5a/0x90
[  247.737000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.742767]  ? kvm_clock_read+0x18/0x30
[  247.746741]  ? kvm_sched_clock_read+0x9/0x20
[  247.751156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.756713]  ? check_preemption_disabled+0x48/0x280
[  247.761737]  irq_exit+0x17f/0x1c0
[  247.765192]  smp_apic_timer_interrupt+0x1cb/0x760
[  247.770033]  ? smp_reschedule_interrupt+0x109/0x650
[  247.775050]  ? smp_call_function_single_interrupt+0x650/0x650
[  247.780932]  ? interrupt_entry+0xb5/0xc0
[  247.785015]  ? trace_hardirqs_off_caller+0xbb/0x310
[  247.790059]  ? trace_hardirqs_off_caller+0xbb/0x310
[  247.795072]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.799919]  ? trace_hardirqs_on_caller+0x310/0x310
[  247.804935]  ? trace_hardirqs_on_caller+0x310/0x310
[  247.809954]  ? task_prio+0x50/0x50
[  247.813512]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.819049]  ? check_preemption_disabled+0x48/0x280
[  247.824068]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.828918]  apic_timer_interrupt+0xf/0x20
[  247.833147]  </IRQ>
[  247.835386] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  247.840324] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  247.859233] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  247.866947] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  247.874353] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  247.881649] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  247.888916] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  247.896177] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  247.903473]  skb_clone+0x1bb/0x500
[  247.907017]  ? finish_task_switch+0x2f4/0x910
[  247.911519]  ? skb_split+0x11e0/0x11e0
[  247.915421]  ? preempt_notifier_register+0x200/0x200
[  247.920547]  ? __switch_to_asm+0x34/0x70
[  247.924596]  ? __switch_to_asm+0x34/0x70
[  247.928661]  ? __switch_to_asm+0x40/0x70
[  247.932903]  ? __switch_to_asm+0x34/0x70
[  247.936960]  ? __switch_to_asm+0x40/0x70
[  247.941016]  ? __switch_to_asm+0x34/0x70
[  247.945069]  ? __switch_to_asm+0x40/0x70
[  247.949136]  ? __switch_to_asm+0x34/0x70
[  247.953215]  ? __switch_to_asm+0x34/0x70
[  247.957307]  ? __switch_to_asm+0x40/0x70
[  247.961374]  ? __switch_to_asm+0x34/0x70
[  247.965429]  bpf_clone_redirect+0xb9/0x490
[  247.969695]  ? __schedule+0x8d7/0x21d0
[  247.973616]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  247.978677]  ? __sched_text_start+0x8/0x8
[  247.982822]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  247.987594]  ? find_held_lock+0x36/0x1c0
[  247.991654]  ? lock_acquire+0x1ed/0x520
[  247.995620]  ? bpf_test_run+0x3cb/0x780
[  247.999599]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.005136]  ? check_preemption_disabled+0x48/0x280
[  248.010167]  ? kasan_check_read+0x11/0x20
[  248.014309]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.019576]  ? rcu_softirq_qs+0x20/0x20
[  248.023547]  ? preempt_schedule+0x4d/0x60
[  248.027687]  ? ___preempt_schedule+0x16/0x18
[  248.032114]  ? bpf_test_run+0x25d/0x780
[  248.036200]  ? netlink_diag_dump+0x2a0/0x2a0
[  248.040608]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.046147]  ? bpf_test_init.isra.10+0x70/0x100
[  248.050857]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  248.055622]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  248.060479]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  248.066020]  ? fput+0x130/0x1a0
[  248.069301]  ? __bpf_prog_get+0x9b/0x290
[  248.073370]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  248.078215]  ? bpf_prog_test_run+0x130/0x1a0
[  248.082626]  ? __x64_sys_bpf+0x3d8/0x520
[  248.086689]  ? bpf_prog_get+0x20/0x20
[  248.090544]  ? do_syscall_64+0x1b9/0x820
[  248.094622]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  248.099991]  ? syscall_return_slowpath+0x5e0/0x5e0
[  248.104928]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.109949]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  248.114968]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  248.121658]  ? __switch_to_asm+0x40/0x70
[  248.125713]  ? __switch_to_asm+0x34/0x70
[  248.129823]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.134689]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  248.140061] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  248.140197] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  248.147099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  248.147103] Call Trace:
[  248.147110]  <IRQ>
[  248.147125]  dump_stack+0x244/0x39d
[  248.147141]  ? dump_stack_print_info.cold.1+0x20/0x20
[  248.147163]  warn_alloc.cold.116+0xb7/0x1bd
[  248.153763] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  248.163041]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  248.165605] syz-executor3 cpuset=syz3 mems_allowed=0
[  248.167744]  ? lock_downgrade+0x900/0x900
[  248.205298]  ? trace_hardirqs_off+0xb8/0x310
[  248.209704]  ? trace_hardirqs_off+0xb8/0x310
[  248.214107]  __alloc_pages_slowpath+0x26e8/0x2e10
[  248.218970]  ? warn_alloc+0x120/0x120
[  248.222767]  ? print_usage_bug+0xc0/0xc0
[  248.226846]  ? warn_alloc+0x120/0x120
[  248.230654]  ? warn_alloc+0x120/0x120
[  248.234486]  ? print_usage_bug+0xc0/0xc0
[  248.238581]  ? print_usage_bug+0xc0/0xc0
[  248.242642]  ? __lock_acquire+0x62f/0x4c20
[  248.246893]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.252442]  ? should_fail+0x22d/0xd01
[  248.256334]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  248.261451]  ? __lock_acquire+0x62f/0x4c20
[  248.265689]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  248.270790]  ? __lock_acquire+0x62f/0x4c20
[  248.275023]  ? should_fail+0x22d/0xd01
[  248.278909]  ? find_held_lock+0x36/0x1c0
[  248.282979]  ? mark_held_locks+0x130/0x130
[  248.287220]  ? mark_held_locks+0x130/0x130
[  248.291464]  ? zap_class+0x640/0x640
[  248.295180]  ? zap_class+0x640/0x640
[  248.298899]  ? print_usage_bug+0xc0/0xc0
[  248.302955]  ? do_raw_spin_unlock+0xa7/0x330
[  248.307357]  ? zap_class+0x640/0x640
[  248.311085]  ? print_usage_bug+0xc0/0xc0
[  248.315175]  ? wq_watchdog_touch+0x9c/0xfe
[  248.319412]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.324945]  ? check_preemption_disabled+0x48/0x280
[  248.329972]  ? __lock_is_held+0xb5/0x140
[  248.334031]  __alloc_pages_nodemask+0xa80/0xde0
[  248.338696]  ? zap_class+0x640/0x640
[  248.342415]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  248.347456]  ? find_held_lock+0x36/0x1c0
[  248.351518]  ? ____cache_alloc_node+0x1c7/0x1e0
[  248.356179]  ? lock_downgrade+0x900/0x900
[  248.360373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.365926]  cache_grow_begin+0xa5/0x8c0
[  248.369977]  ? do_raw_spin_unlock+0xa7/0x330
[  248.374399]  fallback_alloc+0x204/0x2e0
[  248.378369]  ____cache_alloc_node+0x1c7/0x1e0
[  248.382880]  kmem_cache_alloc_node+0xe3/0x730
[  248.387366]  ? ipv6_get_ifaddr+0x42e/0x620
[  248.391620]  __alloc_skb+0x119/0x770
[  248.395334]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.400618]  ? netdev_alloc_frag+0x1f0/0x1f0
[  248.405034]  ? lock_downgrade+0x900/0x900
[  248.409180]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.414709]  ? refcount_sub_and_test_checked+0x203/0x310
[  248.420156]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  248.425617]  ? addrconf_rs_timer+0x690/0x690
[  248.430032]  ndisc_alloc_skb+0x144/0x340
[  248.434109]  ndisc_send_rs+0x331/0x6e0
[  248.438010]  addrconf_rs_timer+0x314/0x690
[  248.442253]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.446493]  call_timer_fn+0x272/0x920
[  248.450371]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.454601]  ? process_timeout+0x40/0x40
[  248.458667]  ? mark_held_locks+0xc7/0x130
[  248.462833]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.467364]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.471854]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.476106]  ? lockdep_hardirqs_on+0x296/0x5b0
[  248.480682]  ? trace_hardirqs_on+0xbd/0x310
[  248.484999]  ? kasan_check_read+0x11/0x20
[  248.489155]  ? __run_timers+0x7da/0xc70
[  248.493122]  ? trace_hardirqs_off_caller+0x310/0x310
[  248.498224]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.502468]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.506728]  __run_timers+0x7e5/0xc70
[  248.510656]  ? timer_fixup_init+0x70/0x70
[  248.514837]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  248.519869]  ? zap_class+0x640/0x640
[  248.523580]  ? print_usage_bug+0xc0/0xc0
[  248.527636]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  248.532865]  ? find_held_lock+0x36/0x1c0
[  248.536927]  ? zap_class+0x640/0x640
[  248.540644]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.546175]  ? check_preemption_disabled+0x48/0x280
[  248.551207]  ? __lock_is_held+0xb5/0x140
[  248.555290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.560824]  ? check_preemption_disabled+0x48/0x280
[  248.565849]  run_timer_softirq+0x52/0xb0
[  248.569903]  ? rcu_read_lock_sched_held+0x14f/0x180
[  248.574912]  __do_softirq+0x308/0xb7e
[  248.578710]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  248.583213]  ? lock_downgrade+0x900/0x900
[  248.587357]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  248.592494]  ? pvclock_read_flags+0x160/0x160
[  248.596986]  ? lapic_next_event+0x5a/0x90
[  248.601132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.606670]  ? kvm_clock_read+0x18/0x30
[  248.610643]  ? kvm_sched_clock_read+0x9/0x20
[  248.615060]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.620601]  ? check_preemption_disabled+0x48/0x280
[  248.625656]  irq_exit+0x17f/0x1c0
[  248.629109]  smp_apic_timer_interrupt+0x1cb/0x760
[  248.633951]  ? smp_reschedule_interrupt+0x109/0x650
[  248.638968]  ? smp_call_function_single_interrupt+0x650/0x650
[  248.644853]  ? interrupt_entry+0xb5/0xc0
[  248.648918]  ? trace_hardirqs_off_caller+0xbb/0x310
[  248.653950]  ? trace_hardirqs_off_caller+0xbb/0x310
[  248.658965]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.663809]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.668845]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.673878]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.678727]  apic_timer_interrupt+0xf/0x20
[  248.682953]  </IRQ>
[  248.685208] RIP: 0010:dump_stack+0x358/0x39d
[  248.689614] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  248.708529] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  248.716233] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  248.723499] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  248.730761] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  248.738024] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  248.745330] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  248.752641]  ? dump_stack+0x34f/0x39d
[  248.756450]  ? dump_stack_print_info.cold.1+0x20/0x20
[  248.761640]  ? mark_held_locks+0x130/0x130
[  248.765876]  ? mark_held_locks+0x130/0x130
[  248.770112]  dump_header+0x27b/0xf72
[  248.773834]  ? pagefault_out_of_memory+0x197/0x197
[  248.778759]  ? __lock_acquire+0x62f/0x4c20
[  248.782994]  ? percpu_ref_get_many+0x240/0x240
[  248.787574]  ? print_usage_bug+0xc0/0xc0
[  248.791683]  ? zap_class+0x640/0x640
[  248.795421]  ? print_usage_bug+0xc0/0xc0
[  248.799519]  ? print_usage_bug+0xc0/0xc0
[  248.803658]  ? zap_class+0x640/0x640
[  248.807367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.812924]  ? find_held_lock+0x36/0x1c0
[  248.816991]  ? mark_held_locks+0xc7/0x130
[  248.821157]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  248.826286]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  248.831388]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  248.835965]  ? trace_hardirqs_on+0xbd/0x310
[  248.840278]  ? kasan_check_read+0x11/0x20
[  248.844420]  ? ___ratelimit+0x3b4/0x672
[  248.848406]  ? trace_hardirqs_off_caller+0x310/0x310
[  248.853518]  ? trace_hardirqs_on+0x310/0x310
[  248.857925]  ? lock_downgrade+0x900/0x900
[  248.862087]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  248.867190]  ? ___ratelimit+0x3b9/0x672
[  248.871166]  ? idr_get_free+0xf70/0xf70
[  248.875147]  ? find_held_lock+0x36/0x1c0
[  248.879232]  oom_kill_process.cold.27+0x10/0x903
[  248.883983]  ? zap_class+0x640/0x640
[  248.887700]  ? check_preemption_disabled+0x48/0x280
[  248.892713]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  248.897641]  ? kasan_check_read+0x11/0x20
[  248.901784]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.907055]  ? oom_evaluate_task+0x540/0x540
[  248.911457]  ? find_held_lock+0x36/0x1c0
[  248.915513]  ? out_of_memory+0x974/0x1430
[  248.919656]  ? lock_downgrade+0x900/0x900
[  248.923811]  ? check_preemption_disabled+0x48/0x280
[  248.928897]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  248.933816]  ? kasan_check_read+0x11/0x20
[  248.937962]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.943234]  ? rcu_softirq_qs+0x20/0x20
[  248.947202]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.952741]  ? oom_evaluate_task+0x302/0x540
[  248.957147]  out_of_memory+0xa84/0x1430
[  248.961125]  ? oom_killer_disable+0x3a0/0x3a0
[  248.965628]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  248.970554]  ? __ww_mutex_check_waiters+0x160/0x160
[  248.975588]  __alloc_pages_slowpath+0x2354/0x2e10
[  248.980460]  ? warn_alloc+0x120/0x120
[  248.984250]  ? mark_held_locks+0x130/0x130
[  248.988500]  ? find_get_entry+0xaae/0x1120
[  248.992751]  ? filemap_map_pages+0x1a20/0x1a20
[  248.997374]  ? zap_class+0x640/0x640
[  249.001098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.006634]  ? check_preemption_disabled+0x48/0x280
[  249.011644]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.017216]  ? should_fail+0x22d/0xd01
[  249.021114]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.026214]  ? zap_class+0x640/0x640
[  249.029945]  ? __lock_is_held+0xb5/0x140
[  249.034006]  ? mark_held_locks+0x130/0x130
[  249.038255]  ? lock_release+0xa00/0xa00
[  249.042226]  ? perf_trace_sched_process_exec+0x860/0x860
[  249.047691]  ? xa_load+0x2ba/0x460
[  249.051255]  ? lock_downgrade+0x900/0x900
[  249.055399]  ? __might_sleep+0x95/0x190
[  249.059387]  __alloc_pages_nodemask+0xa80/0xde0
[  249.064052]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  249.069060]  ? __page_cache_alloc+0x191/0x5c0
[  249.073565]  ? xa_load+0x2e1/0x460
[  249.077099]  ? xa_clear_mark+0x40/0x40
[  249.080998]  ? zap_class+0x640/0x640
[  249.084709]  ? zap_class+0x640/0x640
[  249.088429]  ? zap_class+0x640/0x640
[  249.092168]  ? __do_page_cache_readahead+0x663/0x810
[  249.097301]  ? find_held_lock+0x36/0x1c0
[  249.101379]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  249.106934]  alloc_pages_current+0x173/0x350
[  249.111357]  __page_cache_alloc+0x38c/0x5c0
[  249.115670]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.120607]  ? kasan_check_read+0x11/0x20
[  249.124756]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.130025]  ? generic_perform_write+0x6a0/0x6a0
[  249.134775]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.140307]  ? check_preemption_disabled+0x48/0x280
[  249.145337]  filemap_fault+0x1595/0x25f0
[  249.149405]  ? __lock_page_or_retry+0xa00/0xa00
[  249.154068]  ? mark_held_locks+0x130/0x130
[  249.158308]  ? filemap_map_pages+0xd6b/0x1a20
[  249.162816]  ? lock_downgrade+0x900/0x900
[  249.167001]  ? check_preemption_disabled+0x48/0x280
[  249.172032]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.176956]  ? kasan_check_read+0x11/0x20
[  249.181138]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.186451]  ? rcu_softirq_qs+0x20/0x20
[  249.190429]  ? filemap_map_pages+0xd92/0x1a20
[  249.194927]  ? print_usage_bug+0xc0/0xc0
[  249.198985]  ? find_get_entries_tag+0x1400/0x1400
[  249.203820]  ? __kasan_slab_free+0x102/0x150
[  249.208262]  ? kasan_slab_free+0xe/0x10
[  249.212234]  ? kmem_cache_free+0x83/0x290
[  249.216394]  ? __sigqueue_free.part.29+0x74/0x90
[  249.221170]  ? lock_acquire+0x1ed/0x520
[  249.225195]  ? ext4_filemap_fault+0x7a/0xad
[  249.229527]  ? lock_release+0xa00/0xa00
[  249.233490]  ? perf_trace_sched_process_exec+0x860/0x860
[  249.238936]  ? print_usage_bug+0xc0/0xc0
[  249.243013]  ? print_usage_bug+0xc0/0xc0
[  249.247078]  ? down_read+0x8d/0x120
[  249.250709]  ? ext4_filemap_fault+0x7a/0xad
[  249.255023]  ? __down_interruptible+0x700/0x700
[  249.259693]  ext4_filemap_fault+0x82/0xad
[  249.263845]  __do_fault+0x100/0x6b0
[  249.267508]  ? pmd_devmap_trans_unstable+0x220/0x220
[  249.272611]  ? mark_held_locks+0x130/0x130
[  249.276880]  ? mark_held_locks+0x130/0x130
[  249.281122]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  249.286668]  ? rcu_pm_notify+0xc0/0xc0
[  249.290559]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.296098]  __handle_mm_fault+0x3ea0/0x5be0
[  249.300507]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  249.305344]  ? _raw_spin_unlock_irq+0x27/0x80
[  249.309844]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  249.314425]  ? trace_hardirqs_on+0xbd/0x310
[  249.318741]  ? kasan_check_read+0x11/0x20
[  249.322886]  ? __set_current_blocked+0xdf/0x120
[  249.327571]  ? trace_hardirqs_off_caller+0x310/0x310
[  249.332700]  ? zap_class+0x640/0x640
[  249.336428]  ? zap_class+0x640/0x640
[  249.340143]  ? find_held_lock+0x36/0x1c0
[  249.344212]  ? handle_mm_fault+0x42a/0xc70
[  249.348449]  ? lock_downgrade+0x900/0x900
[  249.352604]  ? check_preemption_disabled+0x48/0x280
[  249.357632]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.362562]  ? kasan_check_read+0x11/0x20
[  249.366705]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.371992]  ? rcu_softirq_qs+0x20/0x20
[  249.375964]  ? trace_hardirqs_off_caller+0x310/0x310
[  249.381065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.386603]  ? check_preemption_disabled+0x48/0x280
[  249.391652]  handle_mm_fault+0x54f/0xc70
[  249.395710]  ? __handle_mm_fault+0x5be0/0x5be0
[  249.400290]  ? find_vma+0x34/0x190
[  249.403835]  __do_page_fault+0x5e8/0xe60
[  249.407909]  ? exit_to_usermode_loop+0x1f4/0x380
[  249.412681]  do_page_fault+0xf2/0x7e0
[  249.416476]  ? vmalloc_sync_all+0x30/0x30
[  249.420618]  ? error_entry+0x70/0xd0
[  249.424337]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.429352]  ? trace_hardirqs_on_caller+0xc0/0x310
[  249.434277]  ? syscall_return_slowpath+0x5e0/0x5e0
[  249.439230]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.444069]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.449088]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  249.454537]  ? prepare_exit_to_usermode+0x291/0x3b0
[  249.459577]  ? page_fault+0x8/0x30
[  249.463127]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.467967]  ? page_fault+0x8/0x30
[  249.471516]  page_fault+0x1e/0x30
[  249.474959] RIP: 0033:0x45db60
[  249.478157] Code: Bad RIP value.
[  249.481538] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  249.486927] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  249.494195] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  249.501458] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  249.508726] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  249.515990] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  249.523298] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  249.523303] warn_alloc_show_mem: 1 callbacks suppressed
[  249.523309] Mem-Info:
[  249.530628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  249.530635] Call Trace:
[  249.535998] active_anon:54051 inactive_anon:192 isolated_anon:0
[  249.535998]  active_file:9 inactive_file:20 isolated_file:0
[  249.535998]  unevictable:0 dirty:0 writeback:0 unstable:0
[  249.535998]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  249.535998]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  249.535998]  free:13735 free_pcp:540 free_cma:0
[  249.538396]  <IRQ>
[  249.547766] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  249.550340]  dump_stack+0x244/0x39d
[  249.583101] 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
[  249.585240]  ? dump_stack_print_info.cold.1+0x20/0x20
[  249.612616] lowmem_reserve[]: 0 2818 6321 6321
[  249.616287]  warn_alloc.cold.116+0xb7/0x1bd
[  249.642372] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  249.647563]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  249.652116] lowmem_reserve[]: 0 0 3503 3503
[  249.656442]  ? lock_downgrade+0x900/0x900
[  249.684187] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  249.689036]  ? trace_hardirqs_off+0xb8/0x310
[  249.693323] lowmem_reserve[]: 0 0 0 0
[  249.697470]  ? trace_hardirqs_off+0xb8/0x310
[  249.726506] 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
[  249.730914]  __alloc_pages_slowpath+0x26e8/0x2e10
[  249.734682] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  249.739103]  ? warn_alloc+0x120/0x120
[  249.752730] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  249.757594]  ? print_usage_bug+0xc0/0xc0
[  249.772838] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  249.776629]  ? warn_alloc+0x120/0x120
[  249.790756] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  249.794798]  ? warn_alloc+0x120/0x120
[  249.803626] 273 total pagecache pages
[  249.807408]  ? print_usage_bug+0xc0/0xc0
[  249.815960] 0 pages in swap cache
[  249.819744]  ? kvm_clock_read+0x18/0x30
[  249.823530] Swap cache stats: add 0, delete 0, find 0/0
[  249.827594]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  249.831031] Free swap  = 0kB
[  249.834991]  ? print_usage_bug+0xc0/0xc0
[  249.840348] Total swap = 0kB
[  249.845398]  ? __lock_acquire+0x62f/0x4c20
[  249.848402] 1965979 pages RAM
[  249.852455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.855447] 0 pages HighMem/MovableOnly
[  249.859672]  ? should_fail+0x22d/0xd01
[  249.862745] 342853 pages reserved
[  249.868275]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.872232] 0 pages cma reserved
[  249.876341]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.879845] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  249.885048]  ? __lock_acquire+0x62f/0x4c20
[  249.885065]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.885080]  ? __lock_acquire+0x62f/0x4c20
[  249.888477] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  249.893535]  ? should_fail+0x22d/0xd01
[  249.899998] syz-fuzzer cpuset=/ mems_allowed=0
[  249.904226]  ? rcu_irq_exit+0x1a2/0x390
[  249.936140]  ? mark_held_locks+0x130/0x130
[  249.940372]  ? mark_held_locks+0x130/0x130
[  249.944607]  ? mark_held_locks+0xc7/0x130
[  249.948774]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  249.953796]  ? zap_class+0x640/0x640
[  249.957504]  ? print_usage_bug+0xc0/0xc0
[  249.961561]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.967111]  ? check_preemption_disabled+0x48/0x280
[  249.972153]  ? __lock_is_held+0xb5/0x140
[  249.976215]  __alloc_pages_nodemask+0xa80/0xde0
[  249.980891]  ? zap_class+0x640/0x640
[  249.984603]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  249.989623]  ? find_held_lock+0x36/0x1c0
[  249.993697]  ? ____cache_alloc_node+0x1c7/0x1e0
[  249.998360]  ? lock_downgrade+0x900/0x900
[  250.002510]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.008056]  cache_grow_begin+0xa5/0x8c0
[  250.012119]  ? do_raw_spin_unlock+0xa7/0x330
[  250.016541]  fallback_alloc+0x204/0x2e0
[  250.020540]  ____cache_alloc_node+0x1c7/0x1e0
[  250.025043]  kmem_cache_alloc_node+0xe3/0x730
[  250.029541]  ? ipv6_get_ifaddr+0x42e/0x620
[  250.033790]  __alloc_skb+0x119/0x770
[  250.037501]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.042781]  ? netdev_alloc_frag+0x1f0/0x1f0
[  250.047188]  ? lock_downgrade+0x900/0x900
[  250.051348]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.056912]  ? refcount_sub_and_test_checked+0x203/0x310
[  250.062368]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  250.067820]  ? addrconf_rs_timer+0x690/0x690
[  250.072250]  ndisc_alloc_skb+0x144/0x340
[  250.076315]  ndisc_send_rs+0x331/0x6e0
[  250.080225]  addrconf_rs_timer+0x314/0x690
[  250.084466]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.088711]  call_timer_fn+0x272/0x920
[  250.092611]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.096866]  ? process_timeout+0x40/0x40
[  250.100935]  ? __run_timers+0x7da/0xc70
[  250.104916]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.109410]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.113905]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.118146]  ? lockdep_hardirqs_on+0x296/0x5b0
[  250.122733]  ? trace_hardirqs_on+0xbd/0x310
[  250.127066]  ? kasan_check_read+0x11/0x20
[  250.131209]  ? __run_timers+0x7da/0xc70
[  250.135187]  ? trace_hardirqs_off_caller+0x310/0x310
[  250.140291]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.144548]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.148790]  __run_timers+0x7e5/0xc70
[  250.152595]  ? timer_fixup_init+0x70/0x70
[  250.156738]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  250.161776]  ? zap_class+0x640/0x640
[  250.165493]  ? enqueue_hrtimer+0x1a5/0x560
[  250.169740]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  250.174935]  ? find_held_lock+0x36/0x1c0
[  250.179014]  ? zap_class+0x640/0x640
[  250.182729]  ? pvclock_read_flags+0x160/0x160
[  250.187220]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.192755]  ? check_preemption_disabled+0x48/0x280
[  250.197771]  ? __lock_is_held+0xb5/0x140
[  250.201834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.207363]  ? check_preemption_disabled+0x48/0x280
[  250.212396]  run_timer_softirq+0x52/0xb0
[  250.216476]  ? rcu_read_lock_sched_held+0x14f/0x180
[  250.221487]  __do_softirq+0x308/0xb7e
[  250.225301]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  250.229800]  ? lock_downgrade+0x900/0x900
[  250.233940]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  250.239042]  ? pvclock_read_flags+0x160/0x160
[  250.243532]  ? lapic_next_event+0x5a/0x90
[  250.247672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.253207]  ? kvm_clock_read+0x18/0x30
[  250.257186]  ? kvm_sched_clock_read+0x9/0x20
[  250.261611]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.267144]  ? check_preemption_disabled+0x48/0x280
[  250.272158]  irq_exit+0x17f/0x1c0
[  250.275637]  smp_apic_timer_interrupt+0x1cb/0x760
[  250.280483]  ? smp_reschedule_interrupt+0x109/0x650
[  250.285491]  ? smp_call_function_single_interrupt+0x650/0x650
[  250.291374]  ? interrupt_entry+0xb5/0xc0
[  250.295447]  ? trace_hardirqs_off_caller+0xbb/0x310
[  250.300469]  ? trace_hardirqs_off_caller+0xbb/0x310
[  250.305541]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.310410]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.315448]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.320473]  ? task_prio+0x50/0x50
[  250.324023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.329566]  ? check_preemption_disabled+0x48/0x280
[  250.334576]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.339450]  apic_timer_interrupt+0xf/0x20
[  250.343672]  </IRQ>
[  250.345901] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  250.350840] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  250.369744] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  250.377443] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  250.384701] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  250.391959] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  250.399217] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  250.406477] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  250.413765]  skb_clone+0x1bb/0x500
[  250.417298]  ? finish_task_switch+0x2f4/0x910
[  250.421792]  ? skb_split+0x11e0/0x11e0
[  250.425679]  ? preempt_notifier_register+0x200/0x200
[  250.430786]  ? __switch_to_asm+0x34/0x70
[  250.434862]  ? __switch_to_asm+0x34/0x70
[  250.438930]  ? __switch_to_asm+0x40/0x70
[  250.442981]  ? __switch_to_asm+0x34/0x70
[  250.447049]  ? __switch_to_asm+0x40/0x70
[  250.451106]  ? __switch_to_asm+0x34/0x70
[  250.455189]  ? __switch_to_asm+0x40/0x70
[  250.459270]  ? __switch_to_asm+0x34/0x70
[  250.463321]  ? __switch_to_asm+0x34/0x70
[  250.467372]  ? __switch_to_asm+0x40/0x70
[  250.471434]  ? __switch_to_asm+0x34/0x70
[  250.475499]  bpf_clone_redirect+0xb9/0x490
[  250.479722]  ? __schedule+0x8d7/0x21d0
[  250.483620]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  250.488640]  ? __sched_text_start+0x8/0x8
[  250.492799]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  250.497564]  ? find_held_lock+0x36/0x1c0
[  250.501623]  ? lock_acquire+0x1ed/0x520
[  250.505588]  ? bpf_test_run+0x3cb/0x780
[  250.509588]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.515118]  ? check_preemption_disabled+0x48/0x280
[  250.520158]  ? kasan_check_read+0x11/0x20
[  250.524299]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.529580]  ? rcu_softirq_qs+0x20/0x20
[  250.533564]  ? preempt_schedule+0x4d/0x60
[  250.537708]  ? ___preempt_schedule+0x16/0x18
[  250.542115]  ? bpf_test_run+0x25d/0x780
[  250.546132]  ? netlink_diag_dump+0x2a0/0x2a0
[  250.550544]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.556071]  ? bpf_test_init.isra.10+0x70/0x100
[  250.560750]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  250.565548]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  250.570395]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  250.575944]  ? fput+0x130/0x1a0
[  250.579249]  ? __bpf_prog_get+0x9b/0x290
[  250.583357]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  250.588189]  ? bpf_prog_test_run+0x130/0x1a0
[  250.592615]  ? __x64_sys_bpf+0x3d8/0x520
[  250.596701]  ? bpf_prog_get+0x20/0x20
[  250.600534]  ? do_syscall_64+0x1b9/0x820
[  250.604592]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  250.609992]  ? syscall_return_slowpath+0x5e0/0x5e0
[  250.614928]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.619945]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  250.624964]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  250.631626]  ? __switch_to_asm+0x40/0x70
[  250.635685]  ? __switch_to_asm+0x34/0x70
[  250.639752]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.644609]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  250.649995] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  250.650081] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  250.657007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  250.657013] Call Trace:
[  250.657019]  <IRQ>
[  250.657038]  dump_stack+0x244/0x39d
[  250.657056]  ? dump_stack_print_info.cold.1+0x20/0x20
[  250.663617] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  250.672889]  warn_alloc.cold.116+0xb7/0x1bd
[  250.675443] syz-executor3 cpuset=syz3 mems_allowed=0
[  250.677585]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  250.711063]  ? lock_downgrade+0x900/0x900
[  250.715223]  ? trace_hardirqs_off+0xb8/0x310
[  250.719640]  ? trace_hardirqs_off+0xb8/0x310
[  250.724054]  __alloc_pages_slowpath+0x26e8/0x2e10
[  250.728926]  ? warn_alloc+0x120/0x120
[  250.732729]  ? print_usage_bug+0xc0/0xc0
[  250.736796]  ? warn_alloc+0x120/0x120
[  250.740632]  ? warn_alloc+0x120/0x120
[  250.744463]  ? print_usage_bug+0xc0/0xc0
[  250.748529]  ? print_usage_bug+0xc0/0xc0
[  250.752590]  ? __lock_acquire+0x62f/0x4c20
[  250.756826]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.762398]  ? should_fail+0x22d/0xd01
[  250.766297]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.771397]  ? __lock_acquire+0x62f/0x4c20
[  250.775636]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.780748]  ? __lock_acquire+0x62f/0x4c20
[  250.784975]  ? should_fail+0x22d/0xd01
[  250.788906]  ? find_held_lock+0x36/0x1c0
[  250.792967]  ? mark_held_locks+0x130/0x130
[  250.797197]  ? mark_held_locks+0x130/0x130
[  250.801453]  ? zap_class+0x640/0x640
[  250.805177]  ? zap_class+0x640/0x640
[  250.808891]  ? print_usage_bug+0xc0/0xc0
[  250.812943]  ? do_raw_spin_unlock+0xa7/0x330
[  250.817345]  ? zap_class+0x640/0x640
[  250.821088]  ? print_usage_bug+0xc0/0xc0
[  250.825159]  ? wq_watchdog_touch+0x9c/0xfe
[  250.829390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.834933]  ? check_preemption_disabled+0x48/0x280
[  250.839955]  ? __lock_is_held+0xb5/0x140
[  250.844015]  __alloc_pages_nodemask+0xa80/0xde0
[  250.848676]  ? zap_class+0x640/0x640
[  250.852403]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  250.857473]  ? find_held_lock+0x36/0x1c0
[  250.861576]  ? ____cache_alloc_node+0x1c7/0x1e0
[  250.866239]  ? lock_downgrade+0x900/0x900
[  250.870388]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.875922]  cache_grow_begin+0xa5/0x8c0
[  250.879980]  ? do_raw_spin_unlock+0xa7/0x330
[  250.884400]  fallback_alloc+0x204/0x2e0
[  250.888391]  ____cache_alloc_node+0x1c7/0x1e0
[  250.892901]  kmem_cache_alloc_node+0xe3/0x730
[  250.897393]  ? ipv6_get_ifaddr+0x42e/0x620
[  250.901638]  __alloc_skb+0x119/0x770
[  250.905345]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.910656]  ? netdev_alloc_frag+0x1f0/0x1f0
[  250.915063]  ? lock_downgrade+0x900/0x900
[  250.919213]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.924746]  ? refcount_sub_and_test_checked+0x203/0x310
[  250.930207]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  250.935658]  ? addrconf_rs_timer+0x690/0x690
[  250.940091]  ndisc_alloc_skb+0x144/0x340
[  250.944188]  ndisc_send_rs+0x331/0x6e0
[  250.948107]  addrconf_rs_timer+0x314/0x690
[  250.952362]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.956649]  call_timer_fn+0x272/0x920
[  250.960534]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.964769]  ? process_timeout+0x40/0x40
[  250.968840]  ? mark_held_locks+0xc7/0x130
[  250.972989]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.977479]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.981965]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.986196]  ? lockdep_hardirqs_on+0x296/0x5b0
[  250.990805]  ? trace_hardirqs_on+0xbd/0x310
[  250.995132]  ? kasan_check_read+0x11/0x20
[  250.999277]  ? __run_timers+0x7da/0xc70
[  251.003255]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.008364]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.012604]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.016848]  __run_timers+0x7e5/0xc70
[  251.020658]  ? timer_fixup_init+0x70/0x70
[  251.024840]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  251.029864]  ? zap_class+0x640/0x640
[  251.033583]  ? print_usage_bug+0xc0/0xc0
[  251.037654]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  251.042860]  ? find_held_lock+0x36/0x1c0
[  251.046927]  ? zap_class+0x640/0x640
[  251.050664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.056204]  ? check_preemption_disabled+0x48/0x280
[  251.061311]  ? __lock_is_held+0xb5/0x140
[  251.065408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.070943]  ? check_preemption_disabled+0x48/0x280
[  251.075962]  run_timer_softirq+0x52/0xb0
[  251.080022]  ? rcu_read_lock_sched_held+0x14f/0x180
[  251.085040]  __do_softirq+0x308/0xb7e
[  251.088858]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  251.093355]  ? lock_downgrade+0x900/0x900
[  251.097507]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  251.102683]  ? pvclock_read_flags+0x160/0x160
[  251.107193]  ? lapic_next_event+0x5a/0x90
[  251.111382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.116936]  ? kvm_clock_read+0x18/0x30
[  251.120911]  ? kvm_sched_clock_read+0x9/0x20
[  251.125324]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.130881]  ? check_preemption_disabled+0x48/0x280
[  251.135911]  irq_exit+0x17f/0x1c0
[  251.139364]  smp_apic_timer_interrupt+0x1cb/0x760
[  251.144204]  ? smp_reschedule_interrupt+0x109/0x650
[  251.149221]  ? smp_call_function_single_interrupt+0x650/0x650
[  251.155106]  ? interrupt_entry+0xb5/0xc0
[  251.159186]  ? trace_hardirqs_off_caller+0xbb/0x310
[  251.164202]  ? trace_hardirqs_off_caller+0xbb/0x310
[  251.169237]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.174080]  ? trace_hardirqs_on_caller+0x310/0x310
[  251.179095]  ? trace_hardirqs_on_caller+0x310/0x310
[  251.184121]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.188970]  apic_timer_interrupt+0xf/0x20
[  251.193199]  </IRQ>
[  251.195443] RIP: 0010:dump_stack+0x358/0x39d
[  251.199857] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  251.218759] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  251.226478] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  251.233744] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  251.241009] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  251.248278] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  251.255548] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  251.262868]  ? dump_stack+0x34f/0x39d
[  251.266680]  ? dump_stack_print_info.cold.1+0x20/0x20
[  251.271872]  ? mark_held_locks+0x130/0x130
[  251.276110]  ? mark_held_locks+0x130/0x130
[  251.280349]  dump_header+0x27b/0xf72
[  251.284078]  ? pagefault_out_of_memory+0x197/0x197
[  251.289015]  ? __lock_acquire+0x62f/0x4c20
[  251.293250]  ? percpu_ref_get_many+0x240/0x240
[  251.297845]  ? print_usage_bug+0xc0/0xc0
[  251.301921]  ? zap_class+0x640/0x640
[  251.305644]  ? print_usage_bug+0xc0/0xc0
[  251.309702]  ? print_usage_bug+0xc0/0xc0
[  251.313777]  ? zap_class+0x640/0x640
[  251.317500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.323059]  ? find_held_lock+0x36/0x1c0
[  251.327142]  ? mark_held_locks+0xc7/0x130
[  251.331301]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  251.336413]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  251.341515]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  251.346101]  ? trace_hardirqs_on+0xbd/0x310
[  251.350440]  ? kasan_check_read+0x11/0x20
[  251.354589]  ? ___ratelimit+0x3b4/0x672
[  251.358567]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.363673]  ? trace_hardirqs_on+0x310/0x310
[  251.368077]  ? lock_downgrade+0x900/0x900
[  251.372237]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  251.377332]  ? ___ratelimit+0x3b9/0x672
[  251.381302]  ? idr_get_free+0xf70/0xf70
[  251.385270]  ? find_held_lock+0x36/0x1c0
[  251.389336]  oom_kill_process.cold.27+0x10/0x903
[  251.394088]  ? zap_class+0x640/0x640
[  251.397825]  ? check_preemption_disabled+0x48/0x280
[  251.402853]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.407809]  ? kasan_check_read+0x11/0x20
[  251.411966]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.417299]  ? oom_evaluate_task+0x540/0x540
[  251.421703]  ? find_held_lock+0x36/0x1c0
[  251.425764]  ? out_of_memory+0x974/0x1430
[  251.429949]  ? lock_downgrade+0x900/0x900
[  251.434089]  ? check_preemption_disabled+0x48/0x280
[  251.439103]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.444057]  ? kasan_check_read+0x11/0x20
[  251.448201]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.453483]  ? rcu_softirq_qs+0x20/0x20
[  251.457468]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.462999]  ? oom_evaluate_task+0x302/0x540
[  251.467410]  out_of_memory+0xa84/0x1430
[  251.471386]  ? oom_killer_disable+0x3a0/0x3a0
[  251.475875]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  251.480799]  ? __ww_mutex_check_waiters+0x160/0x160
[  251.485859]  __alloc_pages_slowpath+0x2354/0x2e10
[  251.490743]  ? warn_alloc+0x120/0x120
[  251.494533]  ? mark_held_locks+0x130/0x130
[  251.498764]  ? find_get_entry+0xaae/0x1120
[  251.503001]  ? filemap_map_pages+0x1a20/0x1a20
[  251.507584]  ? zap_class+0x640/0x640
[  251.511313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.516863]  ? check_preemption_disabled+0x48/0x280
[  251.521871]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.527429]  ? should_fail+0x22d/0xd01
[  251.531325]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  251.536447]  ? zap_class+0x640/0x640
[  251.540209]  ? __lock_is_held+0xb5/0x140
[  251.544272]  ? mark_held_locks+0x130/0x130
[  251.548510]  ? lock_release+0xa00/0xa00
[  251.552477]  ? perf_trace_sched_process_exec+0x860/0x860
[  251.557920]  ? xa_load+0x2ba/0x460
[  251.561454]  ? lock_downgrade+0x900/0x900
[  251.565646]  ? __might_sleep+0x95/0x190
[  251.569646]  __alloc_pages_nodemask+0xa80/0xde0
[  251.574313]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  251.579336]  ? __page_cache_alloc+0x191/0x5c0
[  251.583841]  ? xa_load+0x2e1/0x460
[  251.587391]  ? xa_clear_mark+0x40/0x40
[  251.591317]  ? zap_class+0x640/0x640
[  251.595049]  ? zap_class+0x640/0x640
[  251.598759]  ? zap_class+0x640/0x640
[  251.602475]  ? __do_page_cache_readahead+0x663/0x810
[  251.607583]  ? find_held_lock+0x36/0x1c0
[  251.611651]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  251.617206]  alloc_pages_current+0x173/0x350
[  251.621619]  __page_cache_alloc+0x38c/0x5c0
[  251.625959]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.630886]  ? kasan_check_read+0x11/0x20
[  251.635032]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.640311]  ? generic_perform_write+0x6a0/0x6a0
[  251.645071]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.650608]  ? check_preemption_disabled+0x48/0x280
[  251.655642]  filemap_fault+0x1595/0x25f0
[  251.659715]  ? __lock_page_or_retry+0xa00/0xa00
[  251.664386]  ? mark_held_locks+0x130/0x130
[  251.668666]  ? filemap_map_pages+0xd6b/0x1a20
[  251.673167]  ? lock_downgrade+0x900/0x900
[  251.677321]  ? check_preemption_disabled+0x48/0x280
[  251.682342]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.687272]  ? kasan_check_read+0x11/0x20
[  251.691419]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.696697]  ? rcu_softirq_qs+0x20/0x20
[  251.700686]  ? filemap_map_pages+0xd92/0x1a20
[  251.705189]  ? print_usage_bug+0xc0/0xc0
[  251.709261]  ? find_get_entries_tag+0x1400/0x1400
[  251.714104]  ? __kasan_slab_free+0x102/0x150
[  251.718522]  ? kasan_slab_free+0xe/0x10
[  251.722506]  ? kmem_cache_free+0x83/0x290
[  251.726656]  ? __sigqueue_free.part.29+0x74/0x90
[  251.731425]  ? lock_acquire+0x1ed/0x520
[  251.735395]  ? ext4_filemap_fault+0x7a/0xad
[  251.739723]  ? lock_release+0xa00/0xa00
[  251.743916]  ? perf_trace_sched_process_exec+0x860/0x860
[  251.749396]  ? print_usage_bug+0xc0/0xc0
[  251.753460]  ? print_usage_bug+0xc0/0xc0
[  251.757550]  ? down_read+0x8d/0x120
[  251.761174]  ? ext4_filemap_fault+0x7a/0xad
[  251.765508]  ? __down_interruptible+0x700/0x700
[  251.770180]  ext4_filemap_fault+0x82/0xad
[  251.774357]  __do_fault+0x100/0x6b0
[  251.777985]  ? pmd_devmap_trans_unstable+0x220/0x220
[  251.783090]  ? mark_held_locks+0x130/0x130
[  251.787322]  ? mark_held_locks+0x130/0x130
[  251.791568]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  251.797116]  ? rcu_pm_notify+0xc0/0xc0
[  251.801005]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.806558]  __handle_mm_fault+0x3ea0/0x5be0
[  251.810982]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  251.815817]  ? _raw_spin_unlock_irq+0x27/0x80
[  251.820313]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  251.824900]  ? trace_hardirqs_on+0xbd/0x310
[  251.829222]  ? kasan_check_read+0x11/0x20
[  251.833419]  ? __set_current_blocked+0xdf/0x120
[  251.838115]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.843228]  ? zap_class+0x640/0x640
[  251.846939]  ? zap_class+0x640/0x640
[  251.850662]  ? find_held_lock+0x36/0x1c0
[  251.854734]  ? handle_mm_fault+0x42a/0xc70
[  251.858980]  ? lock_downgrade+0x900/0x900
[  251.863128]  ? check_preemption_disabled+0x48/0x280
[  251.868146]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.873077]  ? kasan_check_read+0x11/0x20
[  251.877683]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.882964]  ? rcu_softirq_qs+0x20/0x20
[  251.886942]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.892046]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.897582]  ? check_preemption_disabled+0x48/0x280
[  251.902609]  handle_mm_fault+0x54f/0xc70
[  251.906692]  ? __handle_mm_fault+0x5be0/0x5be0
[  251.911279]  ? find_vma+0x34/0x190
[  251.914824]  __do_page_fault+0x5e8/0xe60
[  251.918924]  ? exit_to_usermode_loop+0x1f4/0x380
[  251.923701]  do_page_fault+0xf2/0x7e0
[  251.927504]  ? vmalloc_sync_all+0x30/0x30
[  251.931654]  ? error_entry+0x70/0xd0
[  251.935368]  ? trace_hardirqs_off_caller+0xbb/0x310
[  251.940385]  ? trace_hardirqs_on_caller+0xc0/0x310
[  251.945314]  ? syscall_return_slowpath+0x5e0/0x5e0
[  251.950249]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.955106]  ? trace_hardirqs_on_caller+0x310/0x310
[  251.960133]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  251.965599]  ? prepare_exit_to_usermode+0x291/0x3b0
[  251.970634]  ? page_fault+0x8/0x30
[  251.974174]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.979011]  ? page_fault+0x8/0x30
[  251.982544]  page_fault+0x1e/0x30
[  251.985993] RIP: 0033:0x45db60
[  251.989242] Code: Bad RIP value.
[  251.992600] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  251.998006] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  252.005269] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  252.012526] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  252.019803] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  252.027063] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  252.034374] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  252.034393] warn_alloc_show_mem: 1 callbacks suppressed
[  252.034398] Mem-Info:
[  252.041676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  252.047038] active_anon:54051 inactive_anon:192 isolated_anon:0
[  252.047038]  active_file:9 inactive_file:20 isolated_file:0
[  252.047038]  unevictable:0 dirty:0 writeback:0 unstable:0
[  252.047038]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  252.047038]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  252.047038]  free:13735 free_pcp:540 free_cma:0
[  252.049427] Call Trace:
[  252.058807] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  252.091562]  <IRQ>
[  252.094133] 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
[  252.121549]  dump_stack+0x244/0x39d
[  252.123672] lowmem_reserve[]: 0 2818 6321 6321
[  252.149785]  ? dump_stack_print_info.cold.1+0x20/0x20
[  252.153382] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  252.157954]  warn_alloc.cold.116+0xb7/0x1bd
[  252.163108] lowmem_reserve[]: 0 0 3503 3503
[  252.190890]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  252.195195] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  252.199517]  ? lock_downgrade+0x900/0x900
[  252.204344] lowmem_reserve[]: 0 0 0 0
[  252.233413]  ? trace_hardirqs_off+0xb8/0x310
[  252.237543] 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
[  252.241342]  ? trace_hardirqs_off+0xb8/0x310
[  252.245732] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  252.259282]  __alloc_pages_slowpath+0x26e8/0x2e10
[  252.263660] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  252.278975]  ? warn_alloc+0x120/0x120
[  252.283762] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  252.297877]  ? print_usage_bug+0xc0/0xc0
[  252.301657] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  252.310492]  ? warn_alloc+0x120/0x120
[  252.314529] 273 total pagecache pages
[  252.323090]  ? warn_alloc+0x120/0x120
[  252.326884] 0 pages in swap cache
[  252.330665]  ? print_usage_bug+0xc0/0xc0
[  252.334438] Swap cache stats: add 0, delete 0, find 0/0
[  252.337890]  ? kvm_clock_read+0x18/0x30
[  252.341921] Free swap  = 0kB
[  252.347308]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  252.351250] Total swap = 0kB
[  252.354262]  ? print_usage_bug+0xc0/0xc0
[  252.359248] 1965979 pages RAM
[  252.362281]  ? __lock_acquire+0x62f/0x4c20
[  252.366325] 0 pages HighMem/MovableOnly
[  252.369454]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.373657] 342853 pages reserved
[  252.377632]  ? should_fail+0x22d/0xd01
[  252.383145] 0 pages cma reserved
[  252.386585]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.390521] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  252.393806]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.393821]  ? __lock_acquire+0x62f/0x4c20
[  252.393846]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.399148] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  252.405573]  ? __lock_acquire+0x62f/0x4c20
[  252.410653] syz-fuzzer cpuset=/ mems_allowed=0
[  252.414870]  ? should_fail+0x22d/0xd01
[  252.442817]  ? rcu_irq_exit+0x1a2/0x390
[  252.446807]  ? mark_held_locks+0x130/0x130
[  252.451060]  ? mark_held_locks+0x130/0x130
[  252.455328]  ? mark_held_locks+0xc7/0x130
[  252.459486]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  252.464510]  ? zap_class+0x640/0x640
[  252.468235]  ? print_usage_bug+0xc0/0xc0
[  252.472305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.477840]  ? check_preemption_disabled+0x48/0x280
[  252.482886]  ? __lock_is_held+0xb5/0x140
[  252.486944]  __alloc_pages_nodemask+0xa80/0xde0
[  252.491604]  ? zap_class+0x640/0x640
[  252.495342]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  252.500426]  ? find_held_lock+0x36/0x1c0
[  252.504510]  ? ____cache_alloc_node+0x1c7/0x1e0
[  252.509175]  ? lock_downgrade+0x900/0x900
[  252.513328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.518866]  cache_grow_begin+0xa5/0x8c0
[  252.522928]  ? do_raw_spin_unlock+0xa7/0x330
[  252.527348]  fallback_alloc+0x204/0x2e0
[  252.531318]  ____cache_alloc_node+0x1c7/0x1e0
[  252.535809]  kmem_cache_alloc_node+0xe3/0x730
[  252.540301]  ? ipv6_get_ifaddr+0x42e/0x620
[  252.544535]  __alloc_skb+0x119/0x770
[  252.548236]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.553524]  ? netdev_alloc_frag+0x1f0/0x1f0
[  252.557933]  ? lock_downgrade+0x900/0x900
[  252.562076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.567632]  ? refcount_sub_and_test_checked+0x203/0x310
[  252.573129]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  252.578617]  ? addrconf_rs_timer+0x690/0x690
[  252.583026]  ndisc_alloc_skb+0x144/0x340
[  252.587084]  ndisc_send_rs+0x331/0x6e0
[  252.590968]  addrconf_rs_timer+0x314/0x690
[  252.595216]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.599486]  call_timer_fn+0x272/0x920
[  252.603463]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.607698]  ? process_timeout+0x40/0x40
[  252.611766]  ? __run_timers+0x7da/0xc70
[  252.615739]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.620232]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.624727]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.628959]  ? lockdep_hardirqs_on+0x296/0x5b0
[  252.633541]  ? trace_hardirqs_on+0xbd/0x310
[  252.637865]  ? kasan_check_read+0x11/0x20
[  252.642006]  ? __run_timers+0x7da/0xc70
[  252.645999]  ? trace_hardirqs_off_caller+0x310/0x310
[  252.651098]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.655352]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.659607]  __run_timers+0x7e5/0xc70
[  252.663408]  ? timer_fixup_init+0x70/0x70
[  252.667553]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  252.672598]  ? zap_class+0x640/0x640
[  252.676326]  ? enqueue_hrtimer+0x1a5/0x560
[  252.680574]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  252.685763]  ? find_held_lock+0x36/0x1c0
[  252.689821]  ? zap_class+0x640/0x640
[  252.693562]  ? pvclock_read_flags+0x160/0x160
[  252.698055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.703593]  ? check_preemption_disabled+0x48/0x280
[  252.708647]  ? __lock_is_held+0xb5/0x140
[  252.712708]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.718243]  ? check_preemption_disabled+0x48/0x280
[  252.723261]  run_timer_softirq+0x52/0xb0
[  252.727321]  ? rcu_read_lock_sched_held+0x14f/0x180
[  252.732443]  __do_softirq+0x308/0xb7e
[  252.736249]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  252.740742]  ? lock_downgrade+0x900/0x900
[  252.745105]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  252.750233]  ? pvclock_read_flags+0x160/0x160
[  252.754731]  ? lapic_next_event+0x5a/0x90
[  252.758895]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.764448]  ? kvm_clock_read+0x18/0x30
[  252.768418]  ? kvm_sched_clock_read+0x9/0x20
[  252.772825]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.778366]  ? check_preemption_disabled+0x48/0x280
[  252.783412]  irq_exit+0x17f/0x1c0
[  252.786875]  smp_apic_timer_interrupt+0x1cb/0x760
[  252.791715]  ? smp_reschedule_interrupt+0x109/0x650
[  252.796730]  ? smp_call_function_single_interrupt+0x650/0x650
[  252.802605]  ? interrupt_entry+0xb5/0xc0
[  252.806673]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.811682]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.816695]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.821528]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.826549]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.831582]  ? task_prio+0x50/0x50
[  252.835150]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.840700]  ? check_preemption_disabled+0x48/0x280
[  252.845715]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.850571]  apic_timer_interrupt+0xf/0x20
[  252.854808]  </IRQ>
[  252.857101] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  252.862047] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  252.880937] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  252.888647] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  252.895922] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  252.903197] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  252.910485] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  252.917740] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  252.925026]  skb_clone+0x1bb/0x500
[  252.928562]  ? finish_task_switch+0x2f4/0x910
[  252.933048]  ? skb_split+0x11e0/0x11e0
[  252.936926]  ? preempt_notifier_register+0x200/0x200
[  252.942018]  ? __switch_to_asm+0x34/0x70
[  252.946070]  ? __switch_to_asm+0x34/0x70
[  252.950160]  ? __switch_to_asm+0x40/0x70
[  252.954221]  ? __switch_to_asm+0x34/0x70
[  252.958285]  ? __switch_to_asm+0x40/0x70
[  252.962334]  ? __switch_to_asm+0x34/0x70
[  252.966386]  ? __switch_to_asm+0x40/0x70
[  252.970435]  ? __switch_to_asm+0x34/0x70
[  252.974484]  ? __switch_to_asm+0x34/0x70
[  252.978552]  ? __switch_to_asm+0x40/0x70
[  252.982601]  ? __switch_to_asm+0x34/0x70
[  252.986695]  bpf_clone_redirect+0xb9/0x490
[  252.990938]  ? __schedule+0x8d7/0x21d0
[  252.994843]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  252.999856]  ? __sched_text_start+0x8/0x8
[  253.003998]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  253.008766]  ? find_held_lock+0x36/0x1c0
[  253.012827]  ? lock_acquire+0x1ed/0x520
[  253.016803]  ? bpf_test_run+0x3cb/0x780
[  253.020773]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.026428]  ? check_preemption_disabled+0x48/0x280
[  253.031462]  ? kasan_check_read+0x11/0x20
[  253.035599]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.040906]  ? rcu_softirq_qs+0x20/0x20
[  253.044883]  ? preempt_schedule+0x4d/0x60
[  253.049026]  ? ___preempt_schedule+0x16/0x18
[  253.053468]  ? bpf_test_run+0x25d/0x780
[  253.057446]  ? netlink_diag_dump+0x2a0/0x2a0
[  253.061910]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.067446]  ? bpf_test_init.isra.10+0x70/0x100
[  253.072113]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  253.076879]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  253.081717]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  253.087277]  ? fput+0x130/0x1a0
[  253.090554]  ? __bpf_prog_get+0x9b/0x290
[  253.094626]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  253.099488]  ? bpf_prog_test_run+0x130/0x1a0
[  253.103900]  ? __x64_sys_bpf+0x3d8/0x520
[  253.107963]  ? bpf_prog_get+0x20/0x20
[  253.111778]  ? do_syscall_64+0x1b9/0x820
[  253.115838]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  253.121197]  ? syscall_return_slowpath+0x5e0/0x5e0
[  253.126123]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.131148]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  253.136160]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  253.142825]  ? __switch_to_asm+0x40/0x70
[  253.146920]  ? __switch_to_asm+0x34/0x70
[  253.150990]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.155840]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  253.161251] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  253.161346] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  253.168282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  253.168286] Call Trace:
[  253.168292]  <IRQ>
[  253.168308]  dump_stack+0x244/0x39d
[  253.168324]  ? dump_stack_print_info.cold.1+0x20/0x20
[  253.174972] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  253.184301]  warn_alloc.cold.116+0xb7/0x1bd
[  253.186905] syz-executor3 cpuset=syz3 mems_allowed=0
[  253.189058]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  253.222544]  ? lock_downgrade+0x900/0x900
[  253.226691]  ? trace_hardirqs_off+0xb8/0x310
[  253.231116]  ? trace_hardirqs_off+0xb8/0x310
[  253.235537]  __alloc_pages_slowpath+0x26e8/0x2e10
[  253.240398]  ? warn_alloc+0x120/0x120
[  253.244193]  ? print_usage_bug+0xc0/0xc0
[  253.248284]  ? warn_alloc+0x120/0x120
[  253.252113]  ? warn_alloc+0x120/0x120
[  253.255909]  ? print_usage_bug+0xc0/0xc0
[  253.259967]  ? print_usage_bug+0xc0/0xc0
[  253.264031]  ? __lock_acquire+0x62f/0x4c20
[  253.268282]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.273822]  ? should_fail+0x22d/0xd01
[  253.277712]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  253.282808]  ? __lock_acquire+0x62f/0x4c20
[  253.287044]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  253.292142]  ? __lock_acquire+0x62f/0x4c20
[  253.296368]  ? should_fail+0x22d/0xd01
[  253.300264]  ? find_held_lock+0x36/0x1c0
[  253.304330]  ? mark_held_locks+0x130/0x130
[  253.308566]  ? mark_held_locks+0x130/0x130
[  253.312796]  ? zap_class+0x640/0x640
[  253.316547]  ? zap_class+0x640/0x640
[  253.320266]  ? print_usage_bug+0xc0/0xc0
[  253.324319]  ? do_raw_spin_unlock+0xa7/0x330
[  253.328720]  ? zap_class+0x640/0x640
[  253.332447]  ? print_usage_bug+0xc0/0xc0
[  253.336547]  ? wq_watchdog_touch+0x9c/0xfe
[  253.340779]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.346309]  ? check_preemption_disabled+0x48/0x280
[  253.351330]  ? __lock_is_held+0xb5/0x140
[  253.355409]  __alloc_pages_nodemask+0xa80/0xde0
[  253.360086]  ? zap_class+0x640/0x640
[  253.363827]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  253.368899]  ? find_held_lock+0x36/0x1c0
[  253.372963]  ? ____cache_alloc_node+0x1c7/0x1e0
[  253.377629]  ? lock_downgrade+0x900/0x900
[  253.381807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.387422]  cache_grow_begin+0xa5/0x8c0
[  253.391493]  ? do_raw_spin_unlock+0xa7/0x330
[  253.395908]  fallback_alloc+0x204/0x2e0
[  253.399883]  ____cache_alloc_node+0x1c7/0x1e0
[  253.404392]  kmem_cache_alloc_node+0xe3/0x730
[  253.408904]  ? ipv6_get_ifaddr+0x42e/0x620
[  253.413140]  __alloc_skb+0x119/0x770
[  253.416852]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.422127]  ? netdev_alloc_frag+0x1f0/0x1f0
[  253.426541]  ? lock_downgrade+0x900/0x900
[  253.430749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.436296]  ? refcount_sub_and_test_checked+0x203/0x310
[  253.441758]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  253.447201]  ? addrconf_rs_timer+0x690/0x690
[  253.451637]  ndisc_alloc_skb+0x144/0x340
[  253.455703]  ndisc_send_rs+0x331/0x6e0
[  253.459600]  addrconf_rs_timer+0x314/0x690
[  253.463842]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.468081]  call_timer_fn+0x272/0x920
[  253.471990]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.476232]  ? process_timeout+0x40/0x40
[  253.480295]  ? mark_held_locks+0xc7/0x130
[  253.484439]  ? _raw_spin_unlock_irq+0x27/0x80
[  253.488930]  ? _raw_spin_unlock_irq+0x27/0x80
[  253.493428]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.497654]  ? lockdep_hardirqs_on+0x296/0x5b0
[  253.502243]  ? trace_hardirqs_on+0xbd/0x310
[  253.506573]  ? kasan_check_read+0x11/0x20
[  253.510713]  ? __run_timers+0x7da/0xc70
[  253.514694]  ? trace_hardirqs_off_caller+0x310/0x310
[  253.519794]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.524023]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.528259]  __run_timers+0x7e5/0xc70
[  253.532060]  ? timer_fixup_init+0x70/0x70
[  253.536202]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  253.541210]  ? zap_class+0x640/0x640
[  253.544920]  ? print_usage_bug+0xc0/0xc0
[  253.548978]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  253.554181]  ? find_held_lock+0x36/0x1c0
[  253.558288]  ? zap_class+0x640/0x640
[  253.562023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.567569]  ? check_preemption_disabled+0x48/0x280
[  253.572599]  ? __lock_is_held+0xb5/0x140
[  253.576666]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.582196]  ? check_preemption_disabled+0x48/0x280
[  253.587255]  run_timer_softirq+0x52/0xb0
[  253.591332]  ? rcu_read_lock_sched_held+0x14f/0x180
[  253.596347]  __do_softirq+0x308/0xb7e
[  253.600158]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  253.604655]  ? lock_downgrade+0x900/0x900
[  253.608806]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  253.613940]  ? pvclock_read_flags+0x160/0x160
[  253.618472]  ? lapic_next_event+0x5a/0x90
[  253.622645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.628188]  ? kvm_clock_read+0x18/0x30
[  253.632169]  ? kvm_sched_clock_read+0x9/0x20
[  253.636579]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.642115]  ? check_preemption_disabled+0x48/0x280
[  253.647138]  irq_exit+0x17f/0x1c0
[  253.650610]  smp_apic_timer_interrupt+0x1cb/0x760
[  253.655459]  ? smp_reschedule_interrupt+0x109/0x650
[  253.660489]  ? smp_call_function_single_interrupt+0x650/0x650
[  253.666371]  ? interrupt_entry+0xb5/0xc0
[  253.670434]  ? trace_hardirqs_off_caller+0xbb/0x310
[  253.675454]  ? trace_hardirqs_off_caller+0xbb/0x310
[  253.680471]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.685315]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.690330]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.695359]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.700210]  apic_timer_interrupt+0xf/0x20
[  253.704439]  </IRQ>
[  253.706681] RIP: 0010:dump_stack+0x358/0x39d
[  253.711087] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  253.729983] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  253.737690] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  253.745098] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  253.752372] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  253.759639] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  253.766903] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  253.774189]  ? dump_stack+0x34f/0x39d
[  253.777998]  ? dump_stack_print_info.cold.1+0x20/0x20
[  253.783192]  ? mark_held_locks+0x130/0x130
[  253.787452]  ? mark_held_locks+0x130/0x130
[  253.791705]  dump_header+0x27b/0xf72
[  253.795427]  ? pagefault_out_of_memory+0x197/0x197
[  253.800394]  ? __lock_acquire+0x62f/0x4c20
[  253.804663]  ? percpu_ref_get_many+0x240/0x240
[  253.809247]  ? print_usage_bug+0xc0/0xc0
[  253.813309]  ? zap_class+0x640/0x640
[  253.817027]  ? print_usage_bug+0xc0/0xc0
[  253.821083]  ? print_usage_bug+0xc0/0xc0
[  253.825146]  ? zap_class+0x640/0x640
[  253.828882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.834422]  ? find_held_lock+0x36/0x1c0
[  253.838526]  ? mark_held_locks+0xc7/0x130
[  253.842672]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  253.847772]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  253.852888]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  253.857498]  ? trace_hardirqs_on+0xbd/0x310
[  253.861877]  ? kasan_check_read+0x11/0x20
[  253.866023]  ? ___ratelimit+0x3b4/0x672
[  253.869999]  ? trace_hardirqs_off_caller+0x310/0x310
[  253.875606]  ? trace_hardirqs_on+0x310/0x310
[  253.880016]  ? lock_downgrade+0x900/0x900
[  253.884170]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  253.889287]  ? ___ratelimit+0x3b9/0x672
[  253.893259]  ? idr_get_free+0xf70/0xf70
[  253.897227]  ? find_held_lock+0x36/0x1c0
[  253.901292]  oom_kill_process.cold.27+0x10/0x903
[  253.906042]  ? zap_class+0x640/0x640
[  253.909750]  ? check_preemption_disabled+0x48/0x280
[  253.914761]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.919682]  ? kasan_check_read+0x11/0x20
[  253.923847]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.929118]  ? oom_evaluate_task+0x540/0x540
[  253.933536]  ? find_held_lock+0x36/0x1c0
[  253.937610]  ? out_of_memory+0x974/0x1430
[  253.941754]  ? lock_downgrade+0x900/0x900
[  253.945892]  ? check_preemption_disabled+0x48/0x280
[  253.950902]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.955840]  ? kasan_check_read+0x11/0x20
[  253.959981]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.965283]  ? rcu_softirq_qs+0x20/0x20
[  253.969253]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.974777]  ? oom_evaluate_task+0x302/0x540
[  253.979221]  out_of_memory+0xa84/0x1430
[  253.983264]  ? oom_killer_disable+0x3a0/0x3a0
[  253.987766]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  253.992689]  ? __ww_mutex_check_waiters+0x160/0x160
[  253.997732]  __alloc_pages_slowpath+0x2354/0x2e10
[  254.002592]  ? warn_alloc+0x120/0x120
[  254.006384]  ? mark_held_locks+0x130/0x130
[  254.010617]  ? find_get_entry+0xaae/0x1120
[  254.014862]  ? filemap_map_pages+0x1a20/0x1a20
[  254.019442]  ? zap_class+0x640/0x640
[  254.023169]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.028726]  ? check_preemption_disabled+0x48/0x280
[  254.033737]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.039268]  ? should_fail+0x22d/0xd01
[  254.043168]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.048315]  ? zap_class+0x640/0x640
[  254.052046]  ? __lock_is_held+0xb5/0x140
[  254.056143]  ? mark_held_locks+0x130/0x130
[  254.060403]  ? lock_release+0xa00/0xa00
[  254.064405]  ? perf_trace_sched_process_exec+0x860/0x860
[  254.069899]  ? xa_load+0x2ba/0x460
[  254.073448]  ? lock_downgrade+0x900/0x900
[  254.077596]  ? __might_sleep+0x95/0x190
[  254.081582]  __alloc_pages_nodemask+0xa80/0xde0
[  254.086253]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  254.091268]  ? __page_cache_alloc+0x191/0x5c0
[  254.095773]  ? xa_load+0x2e1/0x460
[  254.099312]  ? xa_clear_mark+0x40/0x40
[  254.103212]  ? zap_class+0x640/0x640
[  254.106944]  ? zap_class+0x640/0x640
[  254.110662]  ? zap_class+0x640/0x640
[  254.114370]  ? __do_page_cache_readahead+0x663/0x810
[  254.119489]  ? find_held_lock+0x36/0x1c0
[  254.123580]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  254.129113]  alloc_pages_current+0x173/0x350
[  254.133518]  __page_cache_alloc+0x38c/0x5c0
[  254.137840]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  254.142765]  ? kasan_check_read+0x11/0x20
[  254.146936]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.152277]  ? generic_perform_write+0x6a0/0x6a0
[  254.157043]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.162589]  ? check_preemption_disabled+0x48/0x280
[  254.167608]  filemap_fault+0x1595/0x25f0
[  254.171733]  ? __lock_page_or_retry+0xa00/0xa00
[  254.176401]  ? mark_held_locks+0x130/0x130
[  254.180640]  ? filemap_map_pages+0xd6b/0x1a20
[  254.185175]  ? lock_downgrade+0x900/0x900
[  254.189349]  ? check_preemption_disabled+0x48/0x280
[  254.194364]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  254.199283]  ? kasan_check_read+0x11/0x20
[  254.203429]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.208712]  ? rcu_softirq_qs+0x20/0x20
[  254.212692]  ? filemap_map_pages+0xd92/0x1a20
[  254.217182]  ? print_usage_bug+0xc0/0xc0
[  254.221286]  ? find_get_entries_tag+0x1400/0x1400
[  254.226120]  ? __kasan_slab_free+0x102/0x150
[  254.230529]  ? kasan_slab_free+0xe/0x10
[  254.234490]  ? kmem_cache_free+0x83/0x290
[  254.238645]  ? __sigqueue_free.part.29+0x74/0x90
[  254.243439]  ? lock_acquire+0x1ed/0x520
[  254.247403]  ? ext4_filemap_fault+0x7a/0xad
[  254.251735]  ? lock_release+0xa00/0xa00
[  254.255700]  ? perf_trace_sched_process_exec+0x860/0x860
[  254.261176]  ? print_usage_bug+0xc0/0xc0
[  254.265292]  ? print_usage_bug+0xc0/0xc0
[  254.269368]  ? down_read+0x8d/0x120
[  254.272982]  ? ext4_filemap_fault+0x7a/0xad
[  254.277314]  ? __down_interruptible+0x700/0x700
[  254.281983]  ext4_filemap_fault+0x82/0xad
[  254.286152]  __do_fault+0x100/0x6b0
[  254.289774]  ? pmd_devmap_trans_unstable+0x220/0x220
[  254.294908]  ? mark_held_locks+0x130/0x130
[  254.299138]  ? mark_held_locks+0x130/0x130
[  254.303373]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  254.308923]  ? rcu_pm_notify+0xc0/0xc0
[  254.312814]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.318394]  __handle_mm_fault+0x3ea0/0x5be0
[  254.322802]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  254.327643]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.332151]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  254.336731]  ? trace_hardirqs_on+0xbd/0x310
[  254.341060]  ? kasan_check_read+0x11/0x20
[  254.345214]  ? __set_current_blocked+0xdf/0x120
[  254.349911]  ? trace_hardirqs_off_caller+0x310/0x310
[  254.355026]  ? zap_class+0x640/0x640
[  254.358737]  ? zap_class+0x640/0x640
[  254.362453]  ? find_held_lock+0x36/0x1c0
[  254.366522]  ? handle_mm_fault+0x42a/0xc70
[  254.370751]  ? lock_downgrade+0x900/0x900
[  254.374908]  ? check_preemption_disabled+0x48/0x280
[  254.379921]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  254.384893]  ? kasan_check_read+0x11/0x20
[  254.389057]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.394337]  ? rcu_softirq_qs+0x20/0x20
[  254.398310]  ? trace_hardirqs_off_caller+0x310/0x310
[  254.403438]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.408970]  ? check_preemption_disabled+0x48/0x280
[  254.414035]  handle_mm_fault+0x54f/0xc70
[  254.418111]  ? __handle_mm_fault+0x5be0/0x5be0
[  254.422689]  ? find_vma+0x34/0x190
[  254.426227]  __do_page_fault+0x5e8/0xe60
[  254.430300]  ? exit_to_usermode_loop+0x1f4/0x380
[  254.435064]  do_page_fault+0xf2/0x7e0
[  254.438901]  ? vmalloc_sync_all+0x30/0x30
[  254.443046]  ? error_entry+0x70/0xd0
[  254.446754]  ? trace_hardirqs_off_caller+0xbb/0x310
[  254.451763]  ? trace_hardirqs_on_caller+0xc0/0x310
[  254.456695]  ? syscall_return_slowpath+0x5e0/0x5e0
[  254.461631]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.466470]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.471488]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  254.476949]  ? prepare_exit_to_usermode+0x291/0x3b0
[  254.481955]  ? page_fault+0x8/0x30
[  254.485529]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.490411]  ? page_fault+0x8/0x30
[  254.493947]  page_fault+0x1e/0x30
[  254.497391] RIP: 0033:0x45db60
[  254.500602] Code: Bad RIP value.
[  254.503961] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  254.509327] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  254.516617] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  254.523882] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  254.531145] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  254.538422] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  254.545703] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  254.545708] warn_alloc_show_mem: 1 callbacks suppressed
[  254.545714] Mem-Info:
[  254.552977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  254.558365] active_anon:54051 inactive_anon:192 isolated_anon:0
[  254.558365]  active_file:9 inactive_file:20 isolated_file:0
[  254.558365]  unevictable:0 dirty:0 writeback:0 unstable:0
[  254.558365]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  254.558365]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  254.558365]  free:13735 free_pcp:540 free_cma:0
[  254.560748] Call Trace:
[  254.570143] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  254.602900]  <IRQ>
[  254.605488] 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
[  254.632899]  dump_stack+0x244/0x39d
[  254.635023] lowmem_reserve[]: 0 2818 6321 6321
[  254.661124]  ? dump_stack_print_info.cold.1+0x20/0x20
[  254.664725] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  254.669323]  warn_alloc.cold.116+0xb7/0x1bd
[  254.674495] lowmem_reserve[]: 0 0 3503 3503
[  254.702248]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  254.706568] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  254.710883]  ? lock_downgrade+0x900/0x900
[  254.715699] lowmem_reserve[]: 0 0 0 0
[  254.744763]  ? trace_hardirqs_off+0xb8/0x310
[  254.748880] 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
[  254.752670]  ? trace_hardirqs_off+0xb8/0x310
[  254.757067] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  254.770597]  __alloc_pages_slowpath+0x26e8/0x2e10
[  254.774974] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  254.790252]  ? warn_alloc+0x120/0x120
[  254.795055] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  254.809169]  ? print_usage_bug+0xc0/0xc0
[  254.812943] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  254.821758]  ? warn_alloc+0x120/0x120
[  254.825809] 273 total pagecache pages
[  254.834387]  ? warn_alloc+0x120/0x120
[  254.838166] 0 pages in swap cache
[  254.841947]  ? print_usage_bug+0xc0/0xc0
[  254.845725] Swap cache stats: add 0, delete 0, find 0/0
[  254.849167]  ? kvm_clock_read+0x18/0x30
[  254.853233] Free swap  = 0kB
[  254.858594]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  254.862540] Total swap = 0kB
[  254.865544]  ? print_usage_bug+0xc0/0xc0
[  254.870530] 1965979 pages RAM
[  254.873580]  ? __lock_acquire+0x62f/0x4c20
[  254.877614] 0 pages HighMem/MovableOnly
[  254.880723]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.884932] 342853 pages reserved
[  254.888901]  ? should_fail+0x22d/0xd01
[  254.894417] 0 pages cma reserved
[  254.897879]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.901795] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  254.905090]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.905104]  ? __lock_acquire+0x62f/0x4c20
[  254.905120]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.910458] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  254.916871]  ? __lock_acquire+0x62f/0x4c20
[  254.921957] syz-fuzzer cpuset=/ mems_allowed=0
[  254.926182]  ? should_fail+0x22d/0xd01
[  254.954162]  ? rcu_irq_exit+0x1a2/0x390
[  254.958174]  ? mark_held_locks+0x130/0x130
[  254.962406]  ? mark_held_locks+0x130/0x130
[  254.966636]  ? mark_held_locks+0xc7/0x130
[  254.970775]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  254.975782]  ? zap_class+0x640/0x640
[  254.979488]  ? print_usage_bug+0xc0/0xc0
[  254.983541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.989072]  ? check_preemption_disabled+0x48/0x280
[  254.994108]  ? __lock_is_held+0xb5/0x140
[  254.998206]  __alloc_pages_nodemask+0xa80/0xde0
[  255.002890]  ? zap_class+0x640/0x640
[  255.006631]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  255.011667]  ? find_held_lock+0x36/0x1c0
[  255.015731]  ? ____cache_alloc_node+0x1c7/0x1e0
[  255.020396]  ? lock_downgrade+0x900/0x900
[  255.024546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.030086]  cache_grow_begin+0xa5/0x8c0
[  255.034148]  ? do_raw_spin_unlock+0xa7/0x330
[  255.038570]  fallback_alloc+0x204/0x2e0
[  255.042576]  ____cache_alloc_node+0x1c7/0x1e0
[  255.047069]  kmem_cache_alloc_node+0xe3/0x730
[  255.051592]  ? ipv6_get_ifaddr+0x42e/0x620
[  255.055829]  __alloc_skb+0x119/0x770
[  255.059545]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.064823]  ? netdev_alloc_frag+0x1f0/0x1f0
[  255.069236]  ? lock_downgrade+0x900/0x900
[  255.073408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.078943]  ? refcount_sub_and_test_checked+0x203/0x310
[  255.084395]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  255.089846]  ? addrconf_rs_timer+0x690/0x690
[  255.094265]  ndisc_alloc_skb+0x144/0x340
[  255.098330]  ndisc_send_rs+0x331/0x6e0
[  255.102220]  addrconf_rs_timer+0x314/0x690
[  255.106462]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.110703]  call_timer_fn+0x272/0x920
[  255.114591]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.118823]  ? process_timeout+0x40/0x40
[  255.122915]  ? __run_timers+0x7da/0xc70
[  255.126897]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.131394]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.135889]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.140140]  ? lockdep_hardirqs_on+0x296/0x5b0
[  255.144723]  ? trace_hardirqs_on+0xbd/0x310
[  255.149043]  ? kasan_check_read+0x11/0x20
[  255.153228]  ? __run_timers+0x7da/0xc70
[  255.157219]  ? trace_hardirqs_off_caller+0x310/0x310
[  255.162327]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.166563]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.170790]  __run_timers+0x7e5/0xc70
[  255.174597]  ? timer_fixup_init+0x70/0x70
[  255.178744]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  255.183815]  ? zap_class+0x640/0x640
[  255.187566]  ? enqueue_hrtimer+0x1a5/0x560
[  255.191805]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  255.196999]  ? find_held_lock+0x36/0x1c0
[  255.201059]  ? zap_class+0x640/0x640
[  255.204771]  ? pvclock_read_flags+0x160/0x160
[  255.209262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.214792]  ? check_preemption_disabled+0x48/0x280
[  255.219822]  ? __lock_is_held+0xb5/0x140
[  255.223912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.229476]  ? check_preemption_disabled+0x48/0x280
[  255.234499]  run_timer_softirq+0x52/0xb0
[  255.238571]  ? rcu_read_lock_sched_held+0x14f/0x180
[  255.243595]  __do_softirq+0x308/0xb7e
[  255.247405]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  255.251891]  ? lock_downgrade+0x900/0x900
[  255.256049]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  255.261181]  ? pvclock_read_flags+0x160/0x160
[  255.265671]  ? lapic_next_event+0x5a/0x90
[  255.269813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.275363]  ? kvm_clock_read+0x18/0x30
[  255.279329]  ? kvm_sched_clock_read+0x9/0x20
[  255.283729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.289302]  ? check_preemption_disabled+0x48/0x280
[  255.294324]  irq_exit+0x17f/0x1c0
[  255.297775]  smp_apic_timer_interrupt+0x1cb/0x760
[  255.302608]  ? smp_reschedule_interrupt+0x109/0x650
[  255.307619]  ? smp_call_function_single_interrupt+0x650/0x650
[  255.313507]  ? interrupt_entry+0xb5/0xc0
[  255.317605]  ? trace_hardirqs_off_caller+0xbb/0x310
[  255.322631]  ? trace_hardirqs_off_caller+0xbb/0x310
[  255.327639]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.332485]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.337525]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.342531]  ? task_prio+0x50/0x50
[  255.346061]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.351591]  ? check_preemption_disabled+0x48/0x280
[  255.356604]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.361442]  apic_timer_interrupt+0xf/0x20
[  255.365659]  </IRQ>
[  255.367914] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  255.372852] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  255.391744] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  255.399444] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  255.406703] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  255.413977] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  255.421252] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  255.428514] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  255.435804]  skb_clone+0x1bb/0x500
[  255.439339]  ? finish_task_switch+0x2f4/0x910
[  255.443825]  ? skb_split+0x11e0/0x11e0
[  255.447739]  ? preempt_notifier_register+0x200/0x200
[  255.452849]  ? __switch_to_asm+0x34/0x70
[  255.456935]  ? __switch_to_asm+0x34/0x70
[  255.460985]  ? __switch_to_asm+0x40/0x70
[  255.465031]  ? __switch_to_asm+0x34/0x70
[  255.469079]  ? __switch_to_asm+0x40/0x70
[  255.473160]  ? __switch_to_asm+0x34/0x70
[  255.477270]  ? __switch_to_asm+0x40/0x70
[  255.481335]  ? __switch_to_asm+0x34/0x70
[  255.485405]  ? __switch_to_asm+0x34/0x70
[  255.489486]  ? __switch_to_asm+0x40/0x70
[  255.493560]  ? __switch_to_asm+0x34/0x70
[  255.497613]  bpf_clone_redirect+0xb9/0x490
[  255.501855]  ? __schedule+0x8d7/0x21d0
[  255.505736]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  255.510763]  ? __sched_text_start+0x8/0x8
[  255.514925]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  255.519681]  ? find_held_lock+0x36/0x1c0
[  255.523758]  ? lock_acquire+0x1ed/0x520
[  255.527728]  ? bpf_test_run+0x3cb/0x780
[  255.531709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.537273]  ? check_preemption_disabled+0x48/0x280
[  255.542316]  ? kasan_check_read+0x11/0x20
[  255.546463]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.551730]  ? rcu_softirq_qs+0x20/0x20
[  255.555696]  ? preempt_schedule+0x4d/0x60
[  255.559844]  ? ___preempt_schedule+0x16/0x18
[  255.564300]  ? bpf_test_run+0x25d/0x780
[  255.568285]  ? netlink_diag_dump+0x2a0/0x2a0
[  255.572688]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.578248]  ? bpf_test_init.isra.10+0x70/0x100
[  255.582964]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  255.587742]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  255.592625]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  255.598159]  ? fput+0x130/0x1a0
[  255.601443]  ? __bpf_prog_get+0x9b/0x290
[  255.605539]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  255.610375]  ? bpf_prog_test_run+0x130/0x1a0
[  255.614787]  ? __x64_sys_bpf+0x3d8/0x520
[  255.618856]  ? bpf_prog_get+0x20/0x20
[  255.622675]  ? do_syscall_64+0x1b9/0x820
[  255.626734]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  255.632094]  ? syscall_return_slowpath+0x5e0/0x5e0
[  255.637024]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.642041]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  255.647056]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  255.653718]  ? __switch_to_asm+0x40/0x70
[  255.657777]  ? __switch_to_asm+0x34/0x70
[  255.661848]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.666697]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  255.672076] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  255.672153] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  255.679084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  255.679089] Call Trace:
[  255.679096]  <IRQ>
[  255.679113]  dump_stack+0x244/0x39d
[  255.679131]  ? dump_stack_print_info.cold.1+0x20/0x20
[  255.685703] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  255.694986]  warn_alloc.cold.116+0xb7/0x1bd
[  255.697540] syz-executor3 cpuset=syz3 mems_allowed=0
[  255.699683]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  255.733200]  ? lock_downgrade+0x900/0x900
[  255.737456]  ? trace_hardirqs_off+0xb8/0x310
[  255.742066]  ? trace_hardirqs_off+0xb8/0x310
[  255.746494]  __alloc_pages_slowpath+0x26e8/0x2e10
[  255.751370]  ? warn_alloc+0x120/0x120
[  255.755166]  ? find_held_lock+0x36/0x1c0
[  255.759265]  ? warn_alloc+0x120/0x120
[  255.763079]  ? warn_alloc+0x120/0x120
[  255.766878]  ? print_usage_bug+0xc0/0xc0
[  255.770941]  ? print_usage_bug+0xc0/0xc0
[  255.775049]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.780344]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.785892]  ? should_fail+0x22d/0xd01
[  255.789792]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.794888]  ? __lock_acquire+0x62f/0x4c20
[  255.799150]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.804249]  ? __lock_acquire+0x62f/0x4c20
[  255.808582]  ? should_fail+0x22d/0xd01
[  255.812521]  ? mark_held_locks+0x130/0x130
[  255.816756]  ? mark_held_locks+0x130/0x130
[  255.820989]  ? __enqueue_entity+0x10d/0x1f0
[  255.825312]  ? zap_class+0x640/0x640
[  255.829018]  ? print_usage_bug+0xc0/0xc0
[  255.833071]  ? __lock_acquire+0x62f/0x4c20
[  255.837303]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.842845]  ? check_preemption_disabled+0x48/0x280
[  255.847877]  ? __lock_is_held+0xb5/0x140
[  255.851948]  __alloc_pages_nodemask+0xa80/0xde0
[  255.856608]  ? zap_class+0x640/0x640
[  255.860320]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  255.865351]  ? find_held_lock+0x36/0x1c0
[  255.869407]  ? ____cache_alloc_node+0x1c7/0x1e0
[  255.874587]  ? lock_downgrade+0x900/0x900
[  255.878742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.884276]  cache_grow_begin+0xa5/0x8c0
[  255.888328]  ? do_raw_spin_unlock+0xa7/0x330
[  255.892760]  fallback_alloc+0x204/0x2e0
[  255.896748]  ____cache_alloc_node+0x1c7/0x1e0
[  255.901247]  kmem_cache_alloc_node+0xe3/0x730
[  255.905748]  ? ipv6_get_ifaddr+0x42e/0x620
[  255.909994]  __alloc_skb+0x119/0x770
[  255.913713]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.918985]  ? netdev_alloc_frag+0x1f0/0x1f0
[  255.923402]  ? lock_downgrade+0x900/0x900
[  255.927561]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.933087]  ? refcount_sub_and_test_checked+0x203/0x310
[  255.938565]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  255.944036]  ? addrconf_rs_timer+0x690/0x690
[  255.948482]  ndisc_alloc_skb+0x144/0x340
[  255.952537]  ndisc_send_rs+0x331/0x6e0
[  255.956481]  addrconf_rs_timer+0x314/0x690
[  255.960731]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.964965]  call_timer_fn+0x272/0x920
[  255.968868]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.973109]  ? process_timeout+0x40/0x40
[  255.977184]  ? mark_held_locks+0xc7/0x130
[  255.981324]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.985806]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.990289]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.994515]  ? lockdep_hardirqs_on+0x296/0x5b0
[  255.999088]  ? trace_hardirqs_on+0xbd/0x310
[  256.003398]  ? kasan_check_read+0x11/0x20
[  256.007533]  ? __run_timers+0x7da/0xc70
[  256.011546]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.016700]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.020928]  __run_timers+0x7e5/0xc70
[  256.024726]  ? timer_fixup_init+0x70/0x70
[  256.028901]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  256.033908]  ? zap_class+0x640/0x640
[  256.037618]  ? print_usage_bug+0xc0/0xc0
[  256.041677]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  256.046898]  ? find_held_lock+0x36/0x1c0
[  256.050952]  ? zap_class+0x640/0x640
[  256.054665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.060228]  ? check_preemption_disabled+0x48/0x280
[  256.065278]  ? __lock_is_held+0xb5/0x140
[  256.069337]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.074884]  ? check_preemption_disabled+0x48/0x280
[  256.079904]  run_timer_softirq+0x52/0xb0
[  256.083957]  ? rcu_read_lock_sched_held+0x14f/0x180
[  256.088967]  __do_softirq+0x308/0xb7e
[  256.092782]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  256.097273]  ? lock_downgrade+0x900/0x900
[  256.101458]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  256.106612]  ? pvclock_read_flags+0x160/0x160
[  256.111105]  ? lapic_next_event+0x5a/0x90
[  256.115291]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.120826]  ? kvm_clock_read+0x18/0x30
[  256.124829]  ? kvm_sched_clock_read+0x9/0x20
[  256.129260]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.134794]  ? check_preemption_disabled+0x48/0x280
[  256.139842]  irq_exit+0x17f/0x1c0
[  256.143305]  smp_apic_timer_interrupt+0x1cb/0x760
[  256.148137]  ? smp_reschedule_interrupt+0x109/0x650
[  256.153179]  ? smp_call_function_single_interrupt+0x650/0x650
[  256.159057]  ? interrupt_entry+0xb5/0xc0
[  256.163130]  ? trace_hardirqs_off_caller+0xbb/0x310
[  256.168147]  ? trace_hardirqs_off_caller+0xbb/0x310
[  256.173165]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.178022]  ? trace_hardirqs_on_caller+0x310/0x310
[  256.183032]  ? trace_hardirqs_on_caller+0x310/0x310
[  256.188056]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.192929]  apic_timer_interrupt+0xf/0x20
[  256.197151]  </IRQ>
[  256.199391] RIP: 0010:dump_stack+0x358/0x39d
[  256.203794] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  256.222724] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  256.230421] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  256.237684] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  256.244946] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  256.252207] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  256.259499] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  256.266771]  ? dump_stack+0x34f/0x39d
[  256.270602]  ? dump_stack_print_info.cold.1+0x20/0x20
[  256.275804]  ? mark_held_locks+0x130/0x130
[  256.280045]  ? mark_held_locks+0x130/0x130
[  256.284306]  dump_header+0x27b/0xf72
[  256.288084]  ? pagefault_out_of_memory+0x197/0x197
[  256.293038]  ? __lock_acquire+0x62f/0x4c20
[  256.297312]  ? percpu_ref_get_many+0x240/0x240
[  256.301957]  ? print_usage_bug+0xc0/0xc0
[  256.306021]  ? zap_class+0x640/0x640
[  256.309731]  ? print_usage_bug+0xc0/0xc0
[  256.313792]  ? print_usage_bug+0xc0/0xc0
[  256.317866]  ? zap_class+0x640/0x640
[  256.321578]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.327155]  ? find_held_lock+0x36/0x1c0
[  256.331232]  ? mark_held_locks+0xc7/0x130
[  256.335387]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  256.340491]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  256.345613]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  256.350203]  ? trace_hardirqs_on+0xbd/0x310
[  256.354537]  ? kasan_check_read+0x11/0x20
[  256.358675]  ? ___ratelimit+0x3b4/0x672
[  256.362647]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.367740]  ? trace_hardirqs_on+0x310/0x310
[  256.372138]  ? lock_downgrade+0x900/0x900
[  256.376300]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  256.381413]  ? ___ratelimit+0x3b9/0x672
[  256.385418]  ? idr_get_free+0xf70/0xf70
[  256.389401]  ? find_held_lock+0x36/0x1c0
[  256.393489]  oom_kill_process.cold.27+0x10/0x903
[  256.398269]  ? zap_class+0x640/0x640
[  256.401996]  ? check_preemption_disabled+0x48/0x280
[  256.407012]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.411955]  ? kasan_check_read+0x11/0x20
[  256.416103]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.421382]  ? oom_evaluate_task+0x540/0x540
[  256.425788]  ? find_held_lock+0x36/0x1c0
[  256.429857]  ? out_of_memory+0x974/0x1430
[  256.434006]  ? lock_downgrade+0x900/0x900
[  256.438186]  ? check_preemption_disabled+0x48/0x280
[  256.443212]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.448155]  ? kasan_check_read+0x11/0x20
[  256.452324]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.457598]  ? rcu_softirq_qs+0x20/0x20
[  256.461570]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.467097]  ? oom_evaluate_task+0x302/0x540
[  256.471518]  out_of_memory+0xa84/0x1430
[  256.475496]  ? oom_killer_disable+0x3a0/0x3a0
[  256.479984]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  256.484919]  ? __ww_mutex_check_waiters+0x160/0x160
[  256.489939]  __alloc_pages_slowpath+0x2354/0x2e10
[  256.494804]  ? warn_alloc+0x120/0x120
[  256.498604]  ? mark_held_locks+0x130/0x130
[  256.502848]  ? find_get_entry+0xaae/0x1120
[  256.507087]  ? filemap_map_pages+0x1a20/0x1a20
[  256.511667]  ? zap_class+0x640/0x640
[  256.515407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.520968]  ? check_preemption_disabled+0x48/0x280
[  256.525992]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.531554]  ? should_fail+0x22d/0xd01
[  256.535446]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  256.540547]  ? zap_class+0x640/0x640
[  256.544332]  ? __lock_is_held+0xb5/0x140
[  256.548420]  ? mark_held_locks+0x130/0x130
[  256.552651]  ? lock_release+0xa00/0xa00
[  256.556622]  ? perf_trace_sched_process_exec+0x860/0x860
[  256.562070]  ? xa_load+0x2ba/0x460
[  256.565651]  ? lock_downgrade+0x900/0x900
[  256.569802]  ? __might_sleep+0x95/0x190
[  256.573775]  __alloc_pages_nodemask+0xa80/0xde0
[  256.578443]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  256.583455]  ? __page_cache_alloc+0x191/0x5c0
[  256.587944]  ? xa_load+0x2e1/0x460
[  256.591546]  ? xa_clear_mark+0x40/0x40
[  256.595445]  ? zap_class+0x640/0x640
[  256.599176]  ? zap_class+0x640/0x640
[  256.602883]  ? zap_class+0x640/0x640
[  256.606589]  ? __do_page_cache_readahead+0x663/0x810
[  256.611688]  ? find_held_lock+0x36/0x1c0
[  256.615744]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  256.621282]  alloc_pages_current+0x173/0x350
[  256.625720]  __page_cache_alloc+0x38c/0x5c0
[  256.630040]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.634960]  ? kasan_check_read+0x11/0x20
[  256.639107]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.644383]  ? generic_perform_write+0x6a0/0x6a0
[  256.649133]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.654662]  ? check_preemption_disabled+0x48/0x280
[  256.659707]  filemap_fault+0x1595/0x25f0
[  256.663845]  ? __lock_page_or_retry+0xa00/0xa00
[  256.668533]  ? mark_held_locks+0x130/0x130
[  256.672768]  ? filemap_map_pages+0xd6b/0x1a20
[  256.677277]  ? lock_downgrade+0x900/0x900
[  256.681418]  ? check_preemption_disabled+0x48/0x280
[  256.686432]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.691374]  ? kasan_check_read+0x11/0x20
[  256.695514]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.700782]  ? rcu_softirq_qs+0x20/0x20
[  256.704760]  ? filemap_map_pages+0xd92/0x1a20
[  256.709248]  ? print_usage_bug+0xc0/0xc0
[  256.713306]  ? find_get_entries_tag+0x1400/0x1400
[  256.718184]  ? __kasan_slab_free+0x102/0x150
[  256.722583]  ? kasan_slab_free+0xe/0x10
[  256.726562]  ? kmem_cache_free+0x83/0x290
[  256.730699]  ? __sigqueue_free.part.29+0x74/0x90
[  256.735459]  ? lock_acquire+0x1ed/0x520
[  256.739472]  ? ext4_filemap_fault+0x7a/0xad
[  256.743827]  ? lock_release+0xa00/0xa00
[  256.747802]  ? perf_trace_sched_process_exec+0x860/0x860
[  256.753291]  ? print_usage_bug+0xc0/0xc0
[  256.757349]  ? print_usage_bug+0xc0/0xc0
[  256.761415]  ? down_read+0x8d/0x120
[  256.765064]  ? ext4_filemap_fault+0x7a/0xad
[  256.769394]  ? __down_interruptible+0x700/0x700
[  256.774066]  ext4_filemap_fault+0x82/0xad
[  256.778208]  __do_fault+0x100/0x6b0
[  256.781830]  ? pmd_devmap_trans_unstable+0x220/0x220
[  256.786937]  ? mark_held_locks+0x130/0x130
[  256.791170]  ? mark_held_locks+0x130/0x130
[  256.795405]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  256.800952]  ? rcu_pm_notify+0xc0/0xc0
[  256.804882]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.810464]  __handle_mm_fault+0x3ea0/0x5be0
[  256.814875]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  256.819709]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.824199]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  256.828783]  ? trace_hardirqs_on+0xbd/0x310
[  256.833116]  ? kasan_check_read+0x11/0x20
[  256.837273]  ? __set_current_blocked+0xdf/0x120
[  256.841938]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.847045]  ? zap_class+0x640/0x640
[  256.850757]  ? zap_class+0x640/0x640
[  256.854474]  ? find_held_lock+0x36/0x1c0
[  256.858575]  ? handle_mm_fault+0x42a/0xc70
[  256.862815]  ? lock_downgrade+0x900/0x900
[  256.866968]  ? check_preemption_disabled+0x48/0x280
[  256.871988]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.876915]  ? kasan_check_read+0x11/0x20
[  256.881061]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.886349]  ? rcu_softirq_qs+0x20/0x20
[  256.890413]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.895514]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.901050]  ? check_preemption_disabled+0x48/0x280
[  256.906071]  handle_mm_fault+0x54f/0xc70
[  256.910134]  ? __handle_mm_fault+0x5be0/0x5be0
[  256.914724]  ? find_vma+0x34/0x190
[  256.918285]  __do_page_fault+0x5e8/0xe60
[  256.922349]  ? exit_to_usermode_loop+0x1f4/0x380
[  256.927131]  do_page_fault+0xf2/0x7e0
[  256.930935]  ? vmalloc_sync_all+0x30/0x30
[  256.935085]  ? error_entry+0x70/0xd0
[  256.938798]  ? trace_hardirqs_off_caller+0xbb/0x310
[  256.943827]  ? trace_hardirqs_on_caller+0xc0/0x310
[  256.948764]  ? syscall_return_slowpath+0x5e0/0x5e0
[  256.953693]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.958537]  ? trace_hardirqs_on_caller+0x310/0x310
[  256.963550]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  256.968998]  ? prepare_exit_to_usermode+0x291/0x3b0
[  256.974012]  ? page_fault+0x8/0x30
[  256.977572]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.982411]  ? page_fault+0x8/0x30
[  256.985949]  page_fault+0x1e/0x30
[  256.989399] RIP: 0033:0x45db60
[  256.992610] Code: Bad RIP value.
[  256.995973] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  257.001331] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  257.008593] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  257.015877] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  257.023174] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  257.030437] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  257.037722] warn_alloc_show_mem: 1 callbacks suppressed
[  257.037734] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  257.037735] Mem-Info:
[  257.037764] active_anon:54051 inactive_anon:192 isolated_anon:0
[  257.037764]  active_file:9 inactive_file:20 isolated_file:0
[  257.037764]  unevictable:0 dirty:0 writeback:0 unstable:0
[  257.037764]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  257.037764]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  257.037764]  free:13735 free_pcp:540 free_cma:0
[  257.043110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  257.050385] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  257.052785] Call Trace:
[  257.085650] 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
[  257.094991]  <IRQ>
[  257.122387] lowmem_reserve[]: 0 2818 6321 6321
[  257.124974]  dump_stack+0x244/0x39d
[  257.151110] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  257.153277]  ? dump_stack_print_info.cold.1+0x20/0x20
[  257.157824] lowmem_reserve[]: 0 0 3503 3503
[  257.161463]  warn_alloc.cold.116+0xb7/0x1bd
[  257.189202] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  257.194399]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  257.198690] lowmem_reserve[]: 0 0 0 0
[  257.203015]  ? lock_downgrade+0x900/0x900
[  257.232048] 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
[  257.236885]  ? trace_hardirqs_off+0xb8/0x310
[  257.240655] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  257.244798]  ? trace_hardirqs_off+0xb8/0x310
[  257.258302] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  257.262709]  __alloc_pages_slowpath+0x26e8/0x2e10
[  257.277945] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  257.282378]  ? warn_alloc+0x120/0x120
[  257.296467] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  257.301314]  ? print_usage_bug+0xc0/0xc0
[  257.310124] 273 total pagecache pages
[  257.313916]  ? warn_alloc+0x120/0x120
[  257.322471] 0 pages in swap cache
[  257.326514]  ? warn_alloc+0x120/0x120
[  257.330288] Swap cache stats: add 0, delete 0, find 0/0
[  257.334072]  ? print_usage_bug+0xc0/0xc0
[  257.337510] Free swap  = 0kB
[  257.341326]  ? kvm_clock_read+0x18/0x30
[  257.346660] Total swap = 0kB
[  257.350711]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  257.353698] 1965979 pages RAM
[  257.357658]  ? print_usage_bug+0xc0/0xc0
[  257.360652] 0 pages HighMem/MovableOnly
[  257.365666]  ? __lock_acquire+0x62f/0x4c20
[  257.368751] 342853 pages reserved
[  257.372813]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.376754] 0 pages cma reserved
[  257.380973]  ? should_fail+0x22d/0xd01
[  257.384480] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  257.389928]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.389944]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.393394] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  257.397179]  ? __lock_acquire+0x62f/0x4c20
[  257.403662] syz-fuzzer cpuset=/ mems_allowed=0
[  257.408928]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.438079]  ? __lock_acquire+0x62f/0x4c20
[  257.442323]  ? should_fail+0x22d/0xd01
[  257.446207]  ? rcu_irq_exit+0x1a2/0x390
[  257.450206]  ? mark_held_locks+0x130/0x130
[  257.454444]  ? mark_held_locks+0x130/0x130
[  257.458683]  ? mark_held_locks+0xc7/0x130
[  257.462849]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  257.467874]  ? zap_class+0x640/0x640
[  257.471593]  ? print_usage_bug+0xc0/0xc0
[  257.475675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.481258]  ? check_preemption_disabled+0x48/0x280
[  257.486284]  ? __lock_is_held+0xb5/0x140
[  257.490350]  __alloc_pages_nodemask+0xa80/0xde0
[  257.495020]  ? zap_class+0x640/0x640
[  257.498740]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  257.503775]  ? find_held_lock+0x36/0x1c0
[  257.507852]  ? ____cache_alloc_node+0x1c7/0x1e0
[  257.512536]  ? lock_downgrade+0x900/0x900
[  257.516705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.522247]  cache_grow_begin+0xa5/0x8c0
[  257.526305]  ? do_raw_spin_unlock+0xa7/0x330
[  257.530718]  fallback_alloc+0x204/0x2e0
[  257.534696]  ____cache_alloc_node+0x1c7/0x1e0
[  257.539236]  kmem_cache_alloc_node+0xe3/0x730
[  257.543727]  ? ipv6_get_ifaddr+0x42e/0x620
[  257.547967]  __alloc_skb+0x119/0x770
[  257.551683]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.556996]  ? netdev_alloc_frag+0x1f0/0x1f0
[  257.561398]  ? lock_downgrade+0x900/0x900
[  257.565551]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.571084]  ? refcount_sub_and_test_checked+0x203/0x310
[  257.576536]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  257.581985]  ? addrconf_rs_timer+0x690/0x690
[  257.586406]  ndisc_alloc_skb+0x144/0x340
[  257.590490]  ndisc_send_rs+0x331/0x6e0
[  257.594387]  addrconf_rs_timer+0x314/0x690
[  257.598633]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.602883]  call_timer_fn+0x272/0x920
[  257.606789]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.611023]  ? process_timeout+0x40/0x40
[  257.615103]  ? __run_timers+0x7da/0xc70
[  257.619082]  ? _raw_spin_unlock_irq+0x27/0x80
[  257.623575]  ? _raw_spin_unlock_irq+0x27/0x80
[  257.628068]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.632305]  ? lockdep_hardirqs_on+0x296/0x5b0
[  257.636888]  ? trace_hardirqs_on+0xbd/0x310
[  257.641211]  ? kasan_check_read+0x11/0x20
[  257.645355]  ? __run_timers+0x7da/0xc70
[  257.649330]  ? trace_hardirqs_off_caller+0x310/0x310
[  257.654442]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.658680]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.662910]  __run_timers+0x7e5/0xc70
[  257.666719]  ? timer_fixup_init+0x70/0x70
[  257.670890]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  257.675911]  ? zap_class+0x640/0x640
[  257.679629]  ? enqueue_hrtimer+0x1a5/0x560
[  257.683872]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  257.689070]  ? find_held_lock+0x36/0x1c0
[  257.693141]  ? zap_class+0x640/0x640
[  257.696877]  ? pvclock_read_flags+0x160/0x160
[  257.701391]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.706967]  ? check_preemption_disabled+0x48/0x280
[  257.711992]  ? __lock_is_held+0xb5/0x140
[  257.716054]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.721606]  ? check_preemption_disabled+0x48/0x280
[  257.726639]  run_timer_softirq+0x52/0xb0
[  257.730703]  ? rcu_read_lock_sched_held+0x14f/0x180
[  257.735720]  __do_softirq+0x308/0xb7e
[  257.739522]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  257.744554]  ? lock_downgrade+0x900/0x900
[  257.748708]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  257.753817]  ? pvclock_read_flags+0x160/0x160
[  257.758319]  ? lapic_next_event+0x5a/0x90
[  257.762465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.768006]  ? kvm_clock_read+0x18/0x30
[  257.771992]  ? kvm_sched_clock_read+0x9/0x20
[  257.776413]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.781957]  ? check_preemption_disabled+0x48/0x280
[  257.786970]  irq_exit+0x17f/0x1c0
[  257.790418]  smp_apic_timer_interrupt+0x1cb/0x760
[  257.795252]  ? smp_reschedule_interrupt+0x109/0x650
[  257.800281]  ? smp_call_function_single_interrupt+0x650/0x650
[  257.806168]  ? interrupt_entry+0xb5/0xc0
[  257.810229]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.815293]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.820306]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.825151]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.830161]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.835170]  ? task_prio+0x50/0x50
[  257.838706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.844253]  ? check_preemption_disabled+0x48/0x280
[  257.849301]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.854154]  apic_timer_interrupt+0xf/0x20
[  257.858378]  </IRQ>
[  257.860614] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  257.865566] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  257.884594] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  257.892297] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  257.899557] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  257.906815] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  257.914145] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  257.921408] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  257.928712]  skb_clone+0x1bb/0x500
[  257.932251]  ? finish_task_switch+0x2f4/0x910
[  257.936753]  ? skb_split+0x11e0/0x11e0
[  257.940639]  ? preempt_notifier_register+0x200/0x200
[  257.945749]  ? __switch_to_asm+0x34/0x70
[  257.949801]  ? __switch_to_asm+0x34/0x70
[  257.953875]  ? __switch_to_asm+0x40/0x70
[  257.957926]  ? __switch_to_asm+0x34/0x70
[  257.961983]  ? __switch_to_asm+0x40/0x70
[  257.966035]  ? __switch_to_asm+0x34/0x70
[  257.970090]  ? __switch_to_asm+0x40/0x70
[  257.974152]  ? __switch_to_asm+0x34/0x70
[  257.978212]  ? __switch_to_asm+0x34/0x70
[  257.982271]  ? __switch_to_asm+0x40/0x70
[  257.986328]  ? __switch_to_asm+0x34/0x70
[  257.990391]  bpf_clone_redirect+0xb9/0x490
[  257.994628]  ? __schedule+0x8d7/0x21d0
[  257.998570]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  258.003590]  ? __sched_text_start+0x8/0x8
[  258.007739]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  258.012519]  ? find_held_lock+0x36/0x1c0
[  258.016586]  ? lock_acquire+0x1ed/0x520
[  258.020558]  ? bpf_test_run+0x3cb/0x780
[  258.024529]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.030067]  ? check_preemption_disabled+0x48/0x280
[  258.035086]  ? kasan_check_read+0x11/0x20
[  258.039245]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.044535]  ? rcu_softirq_qs+0x20/0x20
[  258.048511]  ? preempt_schedule+0x4d/0x60
[  258.052671]  ? ___preempt_schedule+0x16/0x18
[  258.057090]  ? bpf_test_run+0x25d/0x780
[  258.061093]  ? netlink_diag_dump+0x2a0/0x2a0
[  258.065536]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.071073]  ? bpf_test_init.isra.10+0x70/0x100
[  258.075760]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  258.080538]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  258.085379]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  258.090920]  ? fput+0x130/0x1a0
[  258.094216]  ? __bpf_prog_get+0x9b/0x290
[  258.098295]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  258.103159]  ? bpf_prog_test_run+0x130/0x1a0
[  258.107573]  ? __x64_sys_bpf+0x3d8/0x520
[  258.111635]  ? bpf_prog_get+0x20/0x20
[  258.115453]  ? do_syscall_64+0x1b9/0x820
[  258.119512]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  258.124888]  ? syscall_return_slowpath+0x5e0/0x5e0
[  258.129833]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.134878]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  258.139898]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  258.146560]  ? __switch_to_asm+0x40/0x70
[  258.150615]  ? __switch_to_asm+0x34/0x70
[  258.154685]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.159534]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  258.164908] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  258.164974] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  258.171925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  258.171933] Call Trace:
[  258.178614] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  258.187784]  <IRQ>
[  258.190400] syz-executor3 cpuset=syz3 mems_allowed=0
[  258.200911]  dump_stack+0x244/0x39d
[  258.211770]  ? dump_stack_print_info.cold.1+0x20/0x20
[  258.216968]  warn_alloc.cold.116+0xb7/0x1bd
[  258.221289]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  258.226132]  ? lock_downgrade+0x900/0x900
[  258.230281]  ? trace_hardirqs_off+0xb8/0x310
[  258.234691]  ? trace_hardirqs_off+0xb8/0x310
[  258.239113]  __alloc_pages_slowpath+0x26e8/0x2e10
[  258.244013]  ? warn_alloc+0x120/0x120
[  258.247814]  ? print_usage_bug+0xc0/0xc0
[  258.251877]  ? warn_alloc+0x120/0x120
[  258.255671]  ? warn_alloc+0x120/0x120
[  258.259479]  ? print_usage_bug+0xc0/0xc0
[  258.263536]  ? kvm_clock_read+0x18/0x30
[  258.267504]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  258.272532]  ? print_usage_bug+0xc0/0xc0
[  258.276608]  ? __lock_acquire+0x62f/0x4c20
[  258.280849]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.286404]  ? should_fail+0x22d/0xd01
[  258.290298]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.295589]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.300685]  ? __lock_acquire+0x62f/0x4c20
[  258.304920]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.310037]  ? __lock_acquire+0x62f/0x4c20
[  258.314270]  ? should_fail+0x22d/0xd01
[  258.318150]  ? rcu_irq_exit+0x1a2/0x390
[  258.322125]  ? mark_held_locks+0x130/0x130
[  258.326357]  ? mark_held_locks+0x130/0x130
[  258.330593]  ? mark_held_locks+0xc7/0x130
[  258.334746]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  258.339755]  ? zap_class+0x640/0x640
[  258.343461]  ? print_usage_bug+0xc0/0xc0
[  258.347522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.353053]  ? check_preemption_disabled+0x48/0x280
[  258.358071]  ? __lock_is_held+0xb5/0x140
[  258.362133]  __alloc_pages_nodemask+0xa80/0xde0
[  258.366795]  ? zap_class+0x640/0x640
[  258.370537]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  258.375561]  ? find_held_lock+0x36/0x1c0
[  258.379655]  ? ____cache_alloc_node+0x1c7/0x1e0
[  258.384321]  ? lock_downgrade+0x900/0x900
[  258.388467]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.394000]  cache_grow_begin+0xa5/0x8c0
[  258.398058]  ? do_raw_spin_unlock+0xa7/0x330
[  258.402465]  fallback_alloc+0x204/0x2e0
[  258.406443]  ____cache_alloc_node+0x1c7/0x1e0
[  258.410941]  kmem_cache_alloc_node+0xe3/0x730
[  258.415434]  ? ipv6_get_ifaddr+0x42e/0x620
[  258.419686]  __alloc_skb+0x119/0x770
[  258.423394]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.428673]  ? netdev_alloc_frag+0x1f0/0x1f0
[  258.433080]  ? lock_downgrade+0x900/0x900
[  258.437235]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.442768]  ? refcount_sub_and_test_checked+0x203/0x310
[  258.448219]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  258.453686]  ? addrconf_rs_timer+0x690/0x690
[  258.458099]  ndisc_alloc_skb+0x144/0x340
[  258.462163]  ndisc_send_rs+0x331/0x6e0
[  258.466073]  addrconf_rs_timer+0x314/0x690
[  258.470309]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.474547]  call_timer_fn+0x272/0x920
[  258.478429]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.482661]  ? process_timeout+0x40/0x40
[  258.486721]  ? mark_held_locks+0xc7/0x130
[  258.490886]  ? _raw_spin_unlock_irq+0x27/0x80
[  258.495376]  ? _raw_spin_unlock_irq+0x27/0x80
[  258.499865]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.504093]  ? lockdep_hardirqs_on+0x296/0x5b0
[  258.508685]  ? trace_hardirqs_on+0xbd/0x310
[  258.513002]  ? kasan_check_read+0x11/0x20
[  258.517142]  ? __run_timers+0x7da/0xc70
[  258.521111]  ? trace_hardirqs_off_caller+0x310/0x310
[  258.526216]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.530449]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.534671]  __run_timers+0x7e5/0xc70
[  258.538478]  ? timer_fixup_init+0x70/0x70
[  258.542613]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  258.547624]  ? zap_class+0x640/0x640
[  258.551354]  ? print_usage_bug+0xc0/0xc0
[  258.555408]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  258.560672]  ? find_held_lock+0x36/0x1c0
[  258.564744]  ? zap_class+0x640/0x640
[  258.568457]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.573991]  ? check_preemption_disabled+0x48/0x280
[  258.579018]  ? __lock_is_held+0xb5/0x140
[  258.583074]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.588604]  ? check_preemption_disabled+0x48/0x280
[  258.593619]  run_timer_softirq+0x52/0xb0
[  258.597677]  ? rcu_read_lock_sched_held+0x14f/0x180
[  258.602690]  __do_softirq+0x308/0xb7e
[  258.606486]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  258.610977]  ? lock_downgrade+0x900/0x900
[  258.615127]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  258.620235]  ? pvclock_read_flags+0x160/0x160
[  258.624748]  ? lapic_next_event+0x5a/0x90
[  258.628907]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.634444]  ? kvm_clock_read+0x18/0x30
[  258.638410]  ? kvm_sched_clock_read+0x9/0x20
[  258.642814]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.648371]  ? check_preemption_disabled+0x48/0x280
[  258.653389]  irq_exit+0x17f/0x1c0
[  258.656850]  smp_apic_timer_interrupt+0x1cb/0x760
[  258.661695]  ? smp_reschedule_interrupt+0x109/0x650
[  258.666712]  ? smp_call_function_single_interrupt+0x650/0x650
[  258.672595]  ? interrupt_entry+0xb5/0xc0
[  258.676670]  ? trace_hardirqs_off_caller+0xbb/0x310
[  258.681686]  ? trace_hardirqs_off_caller+0xbb/0x310
[  258.686704]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.691546]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.696600]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.701629]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.706483]  apic_timer_interrupt+0xf/0x20
[  258.710708]  </IRQ>
[  258.712945] RIP: 0010:dump_stack+0x358/0x39d
[  258.717355] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  258.736265] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  258.743994] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  258.751257] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  258.758589] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  258.765871] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  258.773133] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  258.780415]  ? dump_stack+0x34f/0x39d
[  258.784238]  ? dump_stack_print_info.cold.1+0x20/0x20
[  258.789430]  ? mark_held_locks+0x130/0x130
[  258.793689]  ? mark_held_locks+0x130/0x130
[  258.797931]  dump_header+0x27b/0xf72
[  258.801659]  ? pagefault_out_of_memory+0x197/0x197
[  258.806590]  ? __lock_acquire+0x62f/0x4c20
[  258.810821]  ? percpu_ref_get_many+0x240/0x240
[  258.815417]  ? print_usage_bug+0xc0/0xc0
[  258.819480]  ? zap_class+0x640/0x640
[  258.823192]  ? print_usage_bug+0xc0/0xc0
[  258.827248]  ? print_usage_bug+0xc0/0xc0
[  258.831312]  ? zap_class+0x640/0x640
[  258.835027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.840562]  ? find_held_lock+0x36/0x1c0
[  258.844628]  ? mark_held_locks+0xc7/0x130
[  258.848788]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  258.853930]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  258.859031]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  258.863609]  ? trace_hardirqs_on+0xbd/0x310
[  258.867936]  ? kasan_check_read+0x11/0x20
[  258.872080]  ? ___ratelimit+0x3b4/0x672
[  258.876077]  ? trace_hardirqs_off_caller+0x310/0x310
[  258.881175]  ? trace_hardirqs_on+0x310/0x310
[  258.885580]  ? lock_downgrade+0x900/0x900
[  258.889729]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  258.894829]  ? ___ratelimit+0x3b9/0x672
[  258.898813]  ? idr_get_free+0xf70/0xf70
[  258.902821]  ? find_held_lock+0x36/0x1c0
[  258.906929]  oom_kill_process.cold.27+0x10/0x903
[  258.911678]  ? zap_class+0x640/0x640
[  258.915384]  ? check_preemption_disabled+0x48/0x280
[  258.920414]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.925356]  ? kasan_check_read+0x11/0x20
[  258.929528]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.934811]  ? oom_evaluate_task+0x540/0x540
[  258.939226]  ? find_held_lock+0x36/0x1c0
[  258.943287]  ? out_of_memory+0x974/0x1430
[  258.947443]  ? lock_downgrade+0x900/0x900
[  258.951683]  ? check_preemption_disabled+0x48/0x280
[  258.956695]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.961746]  ? kasan_check_read+0x11/0x20
[  258.965900]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.971169]  ? rcu_softirq_qs+0x20/0x20
[  258.975167]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.980695]  ? oom_evaluate_task+0x302/0x540
[  258.985096]  out_of_memory+0xa84/0x1430
[  258.989110]  ? oom_killer_disable+0x3a0/0x3a0
[  258.993627]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  258.998557]  ? __ww_mutex_check_waiters+0x160/0x160
[  259.003574]  __alloc_pages_slowpath+0x2354/0x2e10
[  259.008430]  ? warn_alloc+0x120/0x120
[  259.012236]  ? mark_held_locks+0x130/0x130
[  259.016469]  ? find_get_entry+0xaae/0x1120
[  259.020735]  ? filemap_map_pages+0x1a20/0x1a20
[  259.025310]  ? zap_class+0x640/0x640
[  259.029033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.034563]  ? check_preemption_disabled+0x48/0x280
[  259.039569]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.045102]  ? should_fail+0x22d/0xd01
[  259.048987]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.054094]  ? zap_class+0x640/0x640
[  259.057855]  ? __lock_is_held+0xb5/0x140
[  259.061914]  ? mark_held_locks+0x130/0x130
[  259.066143]  ? lock_release+0xa00/0xa00
[  259.070111]  ? perf_trace_sched_process_exec+0x860/0x860
[  259.075557]  ? xa_load+0x2ba/0x460
[  259.079091]  ? lock_downgrade+0x900/0x900
[  259.083241]  ? __might_sleep+0x95/0x190
[  259.087215]  __alloc_pages_nodemask+0xa80/0xde0
[  259.091888]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  259.096916]  ? __page_cache_alloc+0x191/0x5c0
[  259.101441]  ? xa_load+0x2e1/0x460
[  259.105009]  ? xa_clear_mark+0x40/0x40
[  259.108927]  ? zap_class+0x640/0x640
[  259.112650]  ? zap_class+0x640/0x640
[  259.116358]  ? zap_class+0x640/0x640
[  259.120084]  ? __do_page_cache_readahead+0x663/0x810
[  259.125209]  ? find_held_lock+0x36/0x1c0
[  259.129298]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  259.134843]  alloc_pages_current+0x173/0x350
[  259.139251]  __page_cache_alloc+0x38c/0x5c0
[  259.143566]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  259.148846]  ? kasan_check_read+0x11/0x20
[  259.152993]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.158265]  ? generic_perform_write+0x6a0/0x6a0
[  259.163030]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.168565]  ? check_preemption_disabled+0x48/0x280
[  259.173585]  filemap_fault+0x1595/0x25f0
[  259.177670]  ? __lock_page_or_retry+0xa00/0xa00
[  259.182342]  ? mark_held_locks+0x130/0x130
[  259.186600]  ? filemap_map_pages+0xd6b/0x1a20
[  259.191093]  ? lock_downgrade+0x900/0x900
[  259.195234]  ? check_preemption_disabled+0x48/0x280
[  259.200244]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  259.205165]  ? kasan_check_read+0x11/0x20
[  259.209305]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.214573]  ? rcu_softirq_qs+0x20/0x20
[  259.218554]  ? filemap_map_pages+0xd92/0x1a20
[  259.223084]  ? print_usage_bug+0xc0/0xc0
[  259.227156]  ? find_get_entries_tag+0x1400/0x1400
[  259.231994]  ? __kasan_slab_free+0x102/0x150
[  259.236415]  ? kasan_slab_free+0xe/0x10
[  259.240381]  ? kmem_cache_free+0x83/0x290
[  259.244522]  ? __sigqueue_free.part.29+0x74/0x90
[  259.249302]  ? lock_acquire+0x1ed/0x520
[  259.253270]  ? ext4_filemap_fault+0x7a/0xad
[  259.257590]  ? lock_release+0xa00/0xa00
[  259.261568]  ? perf_trace_sched_process_exec+0x860/0x860
[  259.267014]  ? print_usage_bug+0xc0/0xc0
[  259.271087]  ? print_usage_bug+0xc0/0xc0
[  259.275175]  ? down_read+0x8d/0x120
[  259.278794]  ? ext4_filemap_fault+0x7a/0xad
[  259.283115]  ? __down_interruptible+0x700/0x700
[  259.287805]  ext4_filemap_fault+0x82/0xad
[  259.291950]  __do_fault+0x100/0x6b0
[  259.295576]  ? pmd_devmap_trans_unstable+0x220/0x220
[  259.300694]  ? mark_held_locks+0x130/0x130
[  259.304928]  ? mark_held_locks+0x130/0x130
[  259.309165]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  259.314781]  ? rcu_pm_notify+0xc0/0xc0
[  259.318670]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.324209]  __handle_mm_fault+0x3ea0/0x5be0
[  259.328619]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  259.333458]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.337950]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  259.342531]  ? trace_hardirqs_on+0xbd/0x310
[  259.346856]  ? kasan_check_read+0x11/0x20
[  259.351007]  ? __set_current_blocked+0xdf/0x120
[  259.355667]  ? trace_hardirqs_off_caller+0x310/0x310
[  259.360769]  ? zap_class+0x640/0x640
[  259.364487]  ? zap_class+0x640/0x640
[  259.368195]  ? find_held_lock+0x36/0x1c0
[  259.372303]  ? handle_mm_fault+0x42a/0xc70
[  259.376567]  ? lock_downgrade+0x900/0x900
[  259.380725]  ? check_preemption_disabled+0x48/0x280
[  259.385749]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  259.390669]  ? kasan_check_read+0x11/0x20
[  259.394809]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.400102]  ? rcu_softirq_qs+0x20/0x20
[  259.404069]  ? trace_hardirqs_off_caller+0x310/0x310
[  259.409166]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.414710]  ? check_preemption_disabled+0x48/0x280
[  259.419735]  handle_mm_fault+0x54f/0xc70
[  259.423795]  ? __handle_mm_fault+0x5be0/0x5be0
[  259.428385]  ? find_vma+0x34/0x190
[  259.431923]  __do_page_fault+0x5e8/0xe60
[  259.436022]  ? exit_to_usermode_loop+0x1f4/0x380
[  259.440799]  do_page_fault+0xf2/0x7e0
[  259.444617]  ? vmalloc_sync_all+0x30/0x30
[  259.448764]  ? error_entry+0x70/0xd0
[  259.452475]  ? trace_hardirqs_off_caller+0xbb/0x310
[  259.457487]  ? trace_hardirqs_on_caller+0xc0/0x310
[  259.462409]  ? syscall_return_slowpath+0x5e0/0x5e0
[  259.467340]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.472192]  ? trace_hardirqs_on_caller+0x310/0x310
[  259.477229]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  259.482690]  ? prepare_exit_to_usermode+0x291/0x3b0
[  259.487699]  ? page_fault+0x8/0x30
[  259.491233]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.496070]  ? page_fault+0x8/0x30
[  259.499608]  page_fault+0x1e/0x30
[  259.503062] RIP: 0033:0x45db60
[  259.506275] Code: Bad RIP value.
[  259.509628] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  259.515017] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  259.522305] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  259.529560] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  259.536815] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  259.544079] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  259.551386] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  259.551391] warn_alloc_show_mem: 1 callbacks suppressed
[  259.551396] Mem-Info:
[  259.558657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  259.564044] active_anon:54051 inactive_anon:192 isolated_anon:0
[  259.564044]  active_file:9 inactive_file:20 isolated_file:0
[  259.564044]  unevictable:0 dirty:0 writeback:0 unstable:0
[  259.564044]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  259.564044]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  259.564044]  free:13735 free_pcp:540 free_cma:0
[  259.566413] Call Trace:
[  259.575784] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  259.608568]  <IRQ>
[  259.611189] 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
[  259.638595]  dump_stack+0x244/0x39d
[  259.640718] lowmem_reserve[]: 0 2818 6321 6321
[  259.666829]  ? dump_stack_print_info.cold.1+0x20/0x20
[  259.670437] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  259.675018]  warn_alloc.cold.116+0xb7/0x1bd
[  259.680193] lowmem_reserve[]: 0 0 3503 3503
[  259.707946]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  259.712259] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  259.716578]  ? lock_downgrade+0x900/0x900
[  259.721395] lowmem_reserve[]: 0 0 0 0
[  259.751001]  ? trace_hardirqs_off+0xb8/0x310
[  259.755122] 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
[  259.758930]  ? trace_hardirqs_off+0xb8/0x310
[  259.763309] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  259.776825]  __alloc_pages_slowpath+0x26e8/0x2e10
[  259.781224] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  259.796491]  ? warn_alloc+0x120/0x120
[  259.801315] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  259.815433]  ? print_usage_bug+0xc0/0xc0
[  259.819214] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  259.828035]  ? warn_alloc+0x120/0x120
[  259.832072] 273 total pagecache pages
[  259.840637]  ? warn_alloc+0x120/0x120
[  259.844427] 0 pages in swap cache
[  259.848213]  ? print_usage_bug+0xc0/0xc0
[  259.851989] Swap cache stats: add 0, delete 0, find 0/0
[  259.855430]  ? kvm_clock_read+0x18/0x30
[  259.859464] Free swap  = 0kB
[  259.864813]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  259.868757] Total swap = 0kB
[  259.871781]  ? print_usage_bug+0xc0/0xc0
[  259.877246] 1965979 pages RAM
[  259.880254]  ? __lock_acquire+0x62f/0x4c20
[  259.884305] 0 pages HighMem/MovableOnly
[  259.887403]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.891609] 342853 pages reserved
[  259.895569]  ? should_fail+0x22d/0xd01
[  259.901072] 0 pages cma reserved
[  259.904539]  ? __lock_acquire+0x62f/0x4c20
[  259.908477] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  259.911777]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.916102] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  259.922491]  ? __lock_acquire+0x62f/0x4c20
[  259.927589] syz-fuzzer cpuset=/ mems_allowed=0
[  259.938013]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.951884]  ? __lock_acquire+0x62f/0x4c20
[  259.956129]  ? should_fail+0x22d/0xd01
[  259.960159]  ? mark_held_locks+0x130/0x130
[  259.964400]  ? mark_held_locks+0x130/0x130
[  259.968636]  ? zap_class+0x640/0x640
[  259.972350]  ? print_usage_bug+0xc0/0xc0
[  259.976407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.981939]  ? check_preemption_disabled+0x48/0x280
[  259.986962]  ? __lock_is_held+0xb5/0x140
[  259.991021]  __alloc_pages_nodemask+0xa80/0xde0
[  259.995701]  ? zap_class+0x640/0x640
[  259.999431]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  260.004454]  ? find_held_lock+0x36/0x1c0
[  260.008541]  ? ____cache_alloc_node+0x1c7/0x1e0
[  260.013218]  ? lock_downgrade+0x900/0x900
[  260.017388]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.022924]  cache_grow_begin+0xa5/0x8c0
[  260.027009]  ? do_raw_spin_unlock+0xa7/0x330
[  260.031473]  fallback_alloc+0x204/0x2e0
[  260.035476]  ____cache_alloc_node+0x1c7/0x1e0
[  260.040015]  kmem_cache_alloc_node+0xe3/0x730
[  260.044515]  ? ipv6_get_ifaddr+0x42e/0x620
[  260.048758]  __alloc_skb+0x119/0x770
[  260.052466]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.057748]  ? netdev_alloc_frag+0x1f0/0x1f0
[  260.062182]  ? lock_downgrade+0x900/0x900
[  260.066344]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.071876]  ? refcount_sub_and_test_checked+0x203/0x310
[  260.077345]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  260.082802]  ? addrconf_rs_timer+0x690/0x690
[  260.087212]  ndisc_alloc_skb+0x144/0x340
[  260.091286]  ndisc_send_rs+0x331/0x6e0
[  260.095186]  addrconf_rs_timer+0x314/0x690
[  260.099422]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.103663]  call_timer_fn+0x272/0x920
[  260.107545]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.111776]  ? process_timeout+0x40/0x40
[  260.115847]  ? __run_timers+0x7da/0xc70
[  260.119825]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.124331]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.128825]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.133066]  ? lockdep_hardirqs_on+0x296/0x5b0
[  260.137647]  ? trace_hardirqs_on+0xbd/0x310
[  260.142000]  ? kasan_check_read+0x11/0x20
[  260.146175]  ? __run_timers+0x7da/0xc70
[  260.150163]  ? trace_hardirqs_off_caller+0x310/0x310
[  260.155272]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.159498]  __run_timers+0x7e5/0xc70
[  260.163320]  ? timer_fixup_init+0x70/0x70
[  260.167496]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  260.172528]  ? zap_class+0x640/0x640
[  260.176243]  ? enqueue_hrtimer+0x1a5/0x560
[  260.180475]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  260.185667]  ? find_held_lock+0x36/0x1c0
[  260.189730]  ? zap_class+0x640/0x640
[  260.193441]  ? pvclock_read_flags+0x160/0x160
[  260.197933]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.203476]  ? check_preemption_disabled+0x48/0x280
[  260.208509]  ? __lock_is_held+0xb5/0x140
[  260.212563]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.218094]  ? check_preemption_disabled+0x48/0x280
[  260.223126]  run_timer_softirq+0x52/0xb0
[  260.227235]  ? rcu_read_lock_sched_held+0x14f/0x180
[  260.232247]  __do_softirq+0x308/0xb7e
[  260.236046]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  260.240579]  ? lock_downgrade+0x900/0x900
[  260.244723]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  260.249823]  ? pvclock_read_flags+0x160/0x160
[  260.254350]  ? lapic_next_event+0x5a/0x90
[  260.258509]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.264045]  ? kvm_clock_read+0x18/0x30
[  260.268012]  ? kvm_sched_clock_read+0x9/0x20
[  260.272418]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.277953]  ? check_preemption_disabled+0x48/0x280
[  260.282970]  irq_exit+0x17f/0x1c0
[  260.286436]  smp_apic_timer_interrupt+0x1cb/0x760
[  260.291272]  ? smp_reschedule_interrupt+0x109/0x650
[  260.296355]  ? smp_call_function_single_interrupt+0x650/0x650
[  260.302240]  ? interrupt_entry+0xb5/0xc0
[  260.306318]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.311361]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.316389]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.321261]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.326314]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.331327]  ? task_prio+0x50/0x50
[  260.334878]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.340412]  ? check_preemption_disabled+0x48/0x280
[  260.345431]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.350274]  apic_timer_interrupt+0xf/0x20
[  260.354515]  </IRQ>
[  260.356767] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  260.361780] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  260.380687] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  260.388393] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  260.395663] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  260.402933] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  260.410197] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  260.417465] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  260.424773]  skb_clone+0x1bb/0x500
[  260.428320]  ? finish_task_switch+0x2f4/0x910
[  260.432822]  ? skb_split+0x11e0/0x11e0
[  260.436724]  ? preempt_notifier_register+0x200/0x200
[  260.441825]  ? __switch_to_asm+0x34/0x70
[  260.445891]  ? __switch_to_asm+0x34/0x70
[  260.449949]  ? __switch_to_asm+0x40/0x70
[  260.454007]  ? __switch_to_asm+0x34/0x70
[  260.458064]  ? __switch_to_asm+0x40/0x70
[  260.462121]  ? __switch_to_asm+0x34/0x70
[  260.466198]  ? __switch_to_asm+0x40/0x70
[  260.470269]  ? __switch_to_asm+0x34/0x70
[  260.474352]  ? __switch_to_asm+0x34/0x70
[  260.478417]  ? __switch_to_asm+0x40/0x70
[  260.482488]  ? __switch_to_asm+0x34/0x70
[  260.486575]  bpf_clone_redirect+0xb9/0x490
[  260.490810]  ? __schedule+0x8d7/0x21d0
[  260.494708]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  260.499735]  ? __sched_text_start+0x8/0x8
[  260.503896]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  260.508683]  ? find_held_lock+0x36/0x1c0
[  260.512754]  ? lock_acquire+0x1ed/0x520
[  260.516742]  ? bpf_test_run+0x3cb/0x780
[  260.520713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.526246]  ? check_preemption_disabled+0x48/0x280
[  260.531292]  ? kasan_check_read+0x11/0x20
[  260.535434]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.540701]  ? rcu_softirq_qs+0x20/0x20
[  260.544687]  ? preempt_schedule+0x4d/0x60
[  260.548828]  ? ___preempt_schedule+0x16/0x18
[  260.553242]  ? bpf_test_run+0x25d/0x780
[  260.557233]  ? netlink_diag_dump+0x2a0/0x2a0
[  260.561639]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.567179]  ? bpf_test_init.isra.10+0x70/0x100
[  260.571852]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  260.576639]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  260.581478]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  260.587010]  ? fput+0x130/0x1a0
[  260.590301]  ? __bpf_prog_get+0x9b/0x290
[  260.594388]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  260.599229]  ? bpf_prog_test_run+0x130/0x1a0
[  260.603642]  ? __x64_sys_bpf+0x3d8/0x520
[  260.607721]  ? bpf_prog_get+0x20/0x20
[  260.611543]  ? do_syscall_64+0x1b9/0x820
[  260.615605]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  260.620968]  ? syscall_return_slowpath+0x5e0/0x5e0
[  260.625901]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.630921]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  260.635949]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  260.642612]  ? __switch_to_asm+0x40/0x70
[  260.646673]  ? __switch_to_asm+0x34/0x70
[  260.650738]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.655586]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  260.660969] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  260.661056] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  260.667992] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  260.667997] Call Trace:
[  260.668003]  <IRQ>
[  260.668019]  dump_stack+0x244/0x39d
[  260.668036]  ? dump_stack_print_info.cold.1+0x20/0x20
[  260.674593] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  260.683876]  warn_alloc.cold.116+0xb7/0x1bd
[  260.686433] syz-executor3 cpuset=syz3 mems_allowed=0
[  260.688577]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  260.722065]  ? lock_downgrade+0x900/0x900
[  260.726217]  ? trace_hardirqs_off+0xb8/0x310
[  260.730626]  ? trace_hardirqs_off+0xb8/0x310
[  260.735041]  __alloc_pages_slowpath+0x26e8/0x2e10
[  260.739902]  ? warn_alloc+0x120/0x120
[  260.743700]  ? print_usage_bug+0xc0/0xc0
[  260.747756]  ? warn_alloc+0x120/0x120
[  260.751558]  ? warn_alloc+0x120/0x120
[  260.755361]  ? print_usage_bug+0xc0/0xc0
[  260.759420]  ? kvm_clock_read+0x18/0x30
[  260.763393]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  260.768406]  ? print_usage_bug+0xc0/0xc0
[  260.772462]  ? __lock_acquire+0x62f/0x4c20
[  260.776695]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.782226]  ? should_fail+0x22d/0xd01
[  260.786119]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.791406]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  260.796514]  ? __lock_acquire+0x62f/0x4c20
[  260.800756]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  260.805857]  ? __lock_acquire+0x62f/0x4c20
[  260.810082]  ? should_fail+0x22d/0xd01
[  260.813963]  ? rcu_irq_exit+0x1a2/0x390
[  260.817940]  ? mark_held_locks+0x130/0x130
[  260.822193]  ? mark_held_locks+0x130/0x130
[  260.826430]  ? mark_held_locks+0xc7/0x130
[  260.830590]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  260.835601]  ? zap_class+0x640/0x640
[  260.839322]  ? print_usage_bug+0xc0/0xc0
[  260.843383]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.848920]  ? check_preemption_disabled+0x48/0x280
[  260.853943]  ? __lock_is_held+0xb5/0x140
[  260.858006]  __alloc_pages_nodemask+0xa80/0xde0
[  260.862676]  ? zap_class+0x640/0x640
[  260.866406]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  260.871444]  ? find_held_lock+0x36/0x1c0
[  260.875509]  ? ____cache_alloc_node+0x1c7/0x1e0
[  260.880177]  ? lock_downgrade+0x900/0x900
[  260.884345]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.889880]  cache_grow_begin+0xa5/0x8c0
[  260.893933]  ? do_raw_spin_unlock+0xa7/0x330
[  260.898340]  fallback_alloc+0x204/0x2e0
[  260.902311]  ____cache_alloc_node+0x1c7/0x1e0
[  260.906815]  kmem_cache_alloc_node+0xe3/0x730
[  260.911309]  ? ipv6_get_ifaddr+0x42e/0x620
[  260.915574]  __alloc_skb+0x119/0x770
[  260.919281]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.924569]  ? netdev_alloc_frag+0x1f0/0x1f0
[  260.928968]  ? lock_downgrade+0x900/0x900
[  260.933114]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.938650]  ? refcount_sub_and_test_checked+0x203/0x310
[  260.944104]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  260.949554]  ? addrconf_rs_timer+0x690/0x690
[  260.953988]  ndisc_alloc_skb+0x144/0x340
[  260.958048]  ndisc_send_rs+0x331/0x6e0
[  260.961933]  addrconf_rs_timer+0x314/0x690
[  260.966163]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.970399]  call_timer_fn+0x272/0x920
[  260.974280]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.978540]  ? process_timeout+0x40/0x40
[  260.982603]  ? mark_held_locks+0xc7/0x130
[  260.986764]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.991253]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.995738]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.999968]  ? lockdep_hardirqs_on+0x296/0x5b0
[  261.004586]  ? trace_hardirqs_on+0xbd/0x310
[  261.008925]  ? kasan_check_read+0x11/0x20
[  261.013083]  ? __run_timers+0x7da/0xc70
[  261.017059]  ? trace_hardirqs_off_caller+0x310/0x310
[  261.022176]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.026444]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.030683]  __run_timers+0x7e5/0xc70
[  261.034552]  ? timer_fixup_init+0x70/0x70
[  261.038702]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  261.043716]  ? zap_class+0x640/0x640
[  261.047434]  ? print_usage_bug+0xc0/0xc0
[  261.051500]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  261.056697]  ? find_held_lock+0x36/0x1c0
[  261.060763]  ? zap_class+0x640/0x640
[  261.064513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.070049]  ? check_preemption_disabled+0x48/0x280
[  261.075074]  ? __lock_is_held+0xb5/0x140
[  261.079134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.084672]  ? check_preemption_disabled+0x48/0x280
[  261.089692]  run_timer_softirq+0x52/0xb0
[  261.093754]  ? rcu_read_lock_sched_held+0x14f/0x180
[  261.098765]  __do_softirq+0x308/0xb7e
[  261.102592]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  261.107085]  ? lock_downgrade+0x900/0x900
[  261.111240]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  261.116349]  ? pvclock_read_flags+0x160/0x160
[  261.120851]  ? lapic_next_event+0x5a/0x90
[  261.125000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.130542]  ? kvm_clock_read+0x18/0x30
[  261.134509]  ? kvm_sched_clock_read+0x9/0x20
[  261.138954]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.144524]  ? check_preemption_disabled+0x48/0x280
[  261.149548]  irq_exit+0x17f/0x1c0
[  261.153003]  smp_apic_timer_interrupt+0x1cb/0x760
[  261.157856]  ? smp_reschedule_interrupt+0x109/0x650
[  261.162874]  ? smp_call_function_single_interrupt+0x650/0x650
[  261.168756]  ? interrupt_entry+0xb5/0xc0
[  261.172818]  ? trace_hardirqs_off_caller+0xbb/0x310
[  261.177852]  ? trace_hardirqs_off_caller+0xbb/0x310
[  261.182879]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.187722]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.192737]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.197779]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.202632]  apic_timer_interrupt+0xf/0x20
[  261.206879]  </IRQ>
[  261.209118] RIP: 0010:dump_stack+0x358/0x39d
[  261.213530] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  261.232446] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  261.240150] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  261.247415] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  261.254701] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  261.261967] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  261.269232] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  261.276510]  ? dump_stack+0x34f/0x39d
[  261.280324]  ? dump_stack_print_info.cold.1+0x20/0x20
[  261.285518]  ? mark_held_locks+0x130/0x130
[  261.289753]  ? mark_held_locks+0x130/0x130
[  261.294005]  dump_header+0x27b/0xf72
[  261.297728]  ? pagefault_out_of_memory+0x197/0x197
[  261.302686]  ? __lock_acquire+0x62f/0x4c20
[  261.306919]  ? percpu_ref_get_many+0x240/0x240
[  261.311501]  ? print_usage_bug+0xc0/0xc0
[  261.315564]  ? zap_class+0x640/0x640
[  261.319283]  ? print_usage_bug+0xc0/0xc0
[  261.323344]  ? print_usage_bug+0xc0/0xc0
[  261.327415]  ? zap_class+0x640/0x640
[  261.331140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.336677]  ? find_held_lock+0x36/0x1c0
[  261.340738]  ? mark_held_locks+0xc7/0x130
[  261.344884]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  261.349979]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  261.355077]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  261.359658]  ? trace_hardirqs_on+0xbd/0x310
[  261.363980]  ? kasan_check_read+0x11/0x20
[  261.368125]  ? ___ratelimit+0x3b4/0x672
[  261.372118]  ? trace_hardirqs_off_caller+0x310/0x310
[  261.377217]  ? trace_hardirqs_on+0x310/0x310
[  261.381620]  ? lock_downgrade+0x900/0x900
[  261.385766]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  261.390868]  ? ___ratelimit+0x3b9/0x672
[  261.394875]  ? idr_get_free+0xf70/0xf70
[  261.398850]  ? find_held_lock+0x36/0x1c0
[  261.402922]  oom_kill_process.cold.27+0x10/0x903
[  261.407667]  ? zap_class+0x640/0x640
[  261.411374]  ? check_preemption_disabled+0x48/0x280
[  261.416403]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  261.421342]  ? kasan_check_read+0x11/0x20
[  261.425513]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.430786]  ? oom_evaluate_task+0x540/0x540
[  261.435205]  ? find_held_lock+0x36/0x1c0
[  261.439287]  ? out_of_memory+0x974/0x1430
[  261.443446]  ? lock_downgrade+0x900/0x900
[  261.447589]  ? check_preemption_disabled+0x48/0x280
[  261.452600]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  261.457539]  ? kasan_check_read+0x11/0x20
[  261.461696]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.466980]  ? rcu_softirq_qs+0x20/0x20
[  261.470967]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.476495]  ? oom_evaluate_task+0x302/0x540
[  261.480903]  out_of_memory+0xa84/0x1430
[  261.484931]  ? oom_killer_disable+0x3a0/0x3a0
[  261.489428]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  261.494352]  ? __ww_mutex_check_waiters+0x160/0x160
[  261.499385]  __alloc_pages_slowpath+0x2354/0x2e10
[  261.504264]  ? warn_alloc+0x120/0x120
[  261.508061]  ? mark_held_locks+0x130/0x130
[  261.512337]  ? find_get_entry+0xaae/0x1120
[  261.516579]  ? filemap_map_pages+0x1a20/0x1a20
[  261.521168]  ? zap_class+0x640/0x640
[  261.524882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.530417]  ? check_preemption_disabled+0x48/0x280
[  261.535427]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.540968]  ? should_fail+0x22d/0xd01
[  261.544858]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.549954]  ? zap_class+0x640/0x640
[  261.553683]  ? __lock_is_held+0xb5/0x140
[  261.557744]  ? mark_held_locks+0x130/0x130
[  261.561991]  ? lock_release+0xa00/0xa00
[  261.565970]  ? perf_trace_sched_process_exec+0x860/0x860
[  261.571431]  ? xa_load+0x2ba/0x460
[  261.574969]  ? lock_downgrade+0x900/0x900
[  261.579114]  ? __might_sleep+0x95/0x190
[  261.583093]  __alloc_pages_nodemask+0xa80/0xde0
[  261.587765]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  261.592792]  ? __page_cache_alloc+0x191/0x5c0
[  261.597284]  ? xa_load+0x2e1/0x460
[  261.600823]  ? xa_clear_mark+0x40/0x40
[  261.604718]  ? zap_class+0x640/0x640
[  261.608439]  ? zap_class+0x640/0x640
[  261.612159]  ? zap_class+0x640/0x640
[  261.615878]  ? __do_page_cache_readahead+0x663/0x810
[  261.620984]  ? find_held_lock+0x36/0x1c0
[  261.625064]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  261.630605]  alloc_pages_current+0x173/0x350
[  261.635027]  __page_cache_alloc+0x38c/0x5c0
[  261.639361]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  261.644299]  ? kasan_check_read+0x11/0x20
[  261.648441]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.653714]  ? generic_perform_write+0x6a0/0x6a0
[  261.658462]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.663998]  ? check_preemption_disabled+0x48/0x280
[  261.669020]  filemap_fault+0x1595/0x25f0
[  261.673092]  ? __lock_page_or_retry+0xa00/0xa00
[  261.677763]  ? mark_held_locks+0x130/0x130
[  261.682003]  ? filemap_map_pages+0xd6b/0x1a20
[  261.686497]  ? lock_downgrade+0x900/0x900
[  261.690661]  ? check_preemption_disabled+0x48/0x280
[  261.695674]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  261.700606]  ? kasan_check_read+0x11/0x20
[  261.704750]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.710025]  ? rcu_softirq_qs+0x20/0x20
[  261.714008]  ? filemap_map_pages+0xd92/0x1a20
[  261.718508]  ? print_usage_bug+0xc0/0xc0
[  261.722571]  ? find_get_entries_tag+0x1400/0x1400
[  261.727409]  ? __kasan_slab_free+0x102/0x150
[  261.731813]  ? kasan_slab_free+0xe/0x10
[  261.735787]  ? kmem_cache_free+0x83/0x290
[  261.739932]  ? __sigqueue_free.part.29+0x74/0x90
[  261.744906]  ? lock_acquire+0x1ed/0x520
[  261.748879]  ? ext4_filemap_fault+0x7a/0xad
[  261.753242]  ? lock_release+0xa00/0xa00
[  261.757258]  ? perf_trace_sched_process_exec+0x860/0x860
[  261.762701]  ? print_usage_bug+0xc0/0xc0
[  261.766754]  ? print_usage_bug+0xc0/0xc0
[  261.770816]  ? down_read+0x8d/0x120
[  261.774453]  ? ext4_filemap_fault+0x7a/0xad
[  261.778781]  ? __down_interruptible+0x700/0x700
[  261.783446]  ext4_filemap_fault+0x82/0xad
[  261.787587]  __do_fault+0x100/0x6b0
[  261.791207]  ? pmd_devmap_trans_unstable+0x220/0x220
[  261.796332]  ? mark_held_locks+0x130/0x130
[  261.800570]  ? mark_held_locks+0x130/0x130
[  261.804795]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  261.810320]  ? rcu_pm_notify+0xc0/0xc0
[  261.814234]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.819792]  __handle_mm_fault+0x3ea0/0x5be0
[  261.824234]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  261.829083]  ? _raw_spin_unlock_irq+0x27/0x80
[  261.833607]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  261.838210]  ? trace_hardirqs_on+0xbd/0x310
[  261.842529]  ? kasan_check_read+0x11/0x20
[  261.846679]  ? __set_current_blocked+0xdf/0x120
[  261.851350]  ? trace_hardirqs_off_caller+0x310/0x310
[  261.856467]  ? zap_class+0x640/0x640
[  261.860191]  ? zap_class+0x640/0x640
[  261.863916]  ? find_held_lock+0x36/0x1c0
[  261.867990]  ? handle_mm_fault+0x42a/0xc70
[  261.872228]  ? lock_downgrade+0x900/0x900
[  261.876818]  ? check_preemption_disabled+0x48/0x280
[  261.881858]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  261.886788]  ? kasan_check_read+0x11/0x20
[  261.890956]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.896235]  ? rcu_softirq_qs+0x20/0x20
[  261.900209]  ? trace_hardirqs_off_caller+0x310/0x310
[  261.905317]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.910865]  ? check_preemption_disabled+0x48/0x280
[  261.915892]  handle_mm_fault+0x54f/0xc70
[  261.919971]  ? __handle_mm_fault+0x5be0/0x5be0
[  261.924561]  ? find_vma+0x34/0x190
[  261.928108]  __do_page_fault+0x5e8/0xe60
[  261.932171]  ? exit_to_usermode_loop+0x1f4/0x380
[  261.936940]  do_page_fault+0xf2/0x7e0
[  261.940745]  ? vmalloc_sync_all+0x30/0x30
[  261.944907]  ? error_entry+0x70/0xd0
[  261.948626]  ? trace_hardirqs_off_caller+0xbb/0x310
[  261.953651]  ? trace_hardirqs_on_caller+0xc0/0x310
[  261.958581]  ? syscall_return_slowpath+0x5e0/0x5e0
[  261.963513]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.968358]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.973376]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  261.978835]  ? prepare_exit_to_usermode+0x291/0x3b0
[  261.983866]  ? page_fault+0x8/0x30
[  261.987410]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.992261]  ? page_fault+0x8/0x30
[  261.995804]  page_fault+0x1e/0x30
[  261.999264] RIP: 0033:0x45db60
[  262.002475] Code: Bad RIP value.
[  262.005834] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  262.011225] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  262.018495] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  262.025761] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  262.033022] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  262.040322] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  262.047624] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  262.047629] warn_alloc_show_mem: 1 callbacks suppressed
[  262.047639] Mem-Info:
[  262.054919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  262.060290] active_anon:54051 inactive_anon:192 isolated_anon:0
[  262.060290]  active_file:9 inactive_file:20 isolated_file:0
[  262.060290]  unevictable:0 dirty:0 writeback:0 unstable:0
[  262.060290]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  262.060290]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  262.060290]  free:13735 free_pcp:540 free_cma:0
[  262.062659] Call Trace:
[  262.072049] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  262.104800]  <IRQ>
[  262.107364] 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
[  262.134776]  dump_stack+0x244/0x39d
[  262.136908] lowmem_reserve[]: 0 2818 6321 6321
[  262.163012]  ? dump_stack_print_info.cold.1+0x20/0x20
[  262.166621] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  262.171200]  warn_alloc.cold.116+0xb7/0x1bd
[  262.176356] lowmem_reserve[]: 0 0 3503 3503
[  262.204103]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  262.208397] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  262.212709]  ? lock_downgrade+0x900/0x900
[  262.217519] lowmem_reserve[]: 0 0 0 0
[  262.246580]  ? trace_hardirqs_off+0xb8/0x310
[  262.250694] 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
[  262.254510]  ? trace_hardirqs_off+0xb8/0x310
[  262.258889] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  262.272399]  __alloc_pages_slowpath+0x26e8/0x2e10
[  262.276792] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  262.292123]  ? warn_alloc+0x120/0x120
[  262.296986] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  262.311097]  ? print_usage_bug+0xc0/0xc0
[  262.314880] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  262.323697]  ? warn_alloc+0x120/0x120
[  262.327746] 273 total pagecache pages
[  262.336320]  ? warn_alloc+0x120/0x120
[  262.340117] 0 pages in swap cache
[  262.343923]  ? print_usage_bug+0xc0/0xc0
[  262.347697] Swap cache stats: add 0, delete 0, find 0/0
[  262.351139]  ? kvm_clock_read+0x18/0x30
[  262.355169] Free swap  = 0kB
[  262.360523]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  262.364469] Total swap = 0kB
[  262.367480]  ? print_usage_bug+0xc0/0xc0
[  262.372470] 1965979 pages RAM
[  262.375484]  ? __lock_acquire+0x62f/0x4c20
[  262.379518] 0 pages HighMem/MovableOnly
[  262.382617]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.386825] 342853 pages reserved
[  262.390800]  ? should_fail+0x22d/0xd01
[  262.396308] 0 pages cma reserved
[  262.399771]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.403695] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  262.407016]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  262.412327] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  262.418751]  ? __lock_acquire+0x62f/0x4c20
[  262.423835] syz-fuzzer cpuset=/ mems_allowed=0
[  262.434059]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  262.447963]  ? __lock_acquire+0x62f/0x4c20
[  262.452200]  ? should_fail+0x22d/0xd01
[  262.456085]  ? rcu_irq_exit+0x1a2/0x390
[  262.460070]  ? mark_held_locks+0x130/0x130
[  262.464308]  ? mark_held_locks+0x130/0x130
[  262.468565]  ? mark_held_locks+0xc7/0x130
[  262.472736]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  262.477752]  ? zap_class+0x640/0x640
[  262.481465]  ? print_usage_bug+0xc0/0xc0
[  262.485548]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.491094]  ? check_preemption_disabled+0x48/0x280
[  262.496120]  ? __lock_is_held+0xb5/0x140
[  262.500194]  __alloc_pages_nodemask+0xa80/0xde0
[  262.504866]  ? zap_class+0x640/0x640
[  262.508599]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  262.513626]  ? find_held_lock+0x36/0x1c0
[  262.517696]  ? ____cache_alloc_node+0x1c7/0x1e0
[  262.522367]  ? lock_downgrade+0x900/0x900
[  262.526518]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.532060]  cache_grow_begin+0xa5/0x8c0
[  262.536120]  ? do_raw_spin_unlock+0xa7/0x330
[  262.540538]  fallback_alloc+0x204/0x2e0
[  262.544514]  ____cache_alloc_node+0x1c7/0x1e0
[  262.549011]  kmem_cache_alloc_node+0xe3/0x730
[  262.553503]  ? ipv6_get_ifaddr+0x42e/0x620
[  262.557759]  __alloc_skb+0x119/0x770
[  262.561488]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.566777]  ? netdev_alloc_frag+0x1f0/0x1f0
[  262.571196]  ? lock_downgrade+0x900/0x900
[  262.575352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.580887]  ? refcount_sub_and_test_checked+0x203/0x310
[  262.586359]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  262.591810]  ? addrconf_rs_timer+0x690/0x690
[  262.596247]  ndisc_alloc_skb+0x144/0x340
[  262.600312]  ndisc_send_rs+0x331/0x6e0
[  262.604204]  addrconf_rs_timer+0x314/0x690
[  262.608443]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.612699]  call_timer_fn+0x272/0x920
[  262.616585]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.620818]  ? process_timeout+0x40/0x40
[  262.624892]  ? __run_timers+0x7da/0xc70
[  262.628875]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.633372]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.637887]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.642124]  ? lockdep_hardirqs_on+0x296/0x5b0
[  262.646712]  ? trace_hardirqs_on+0xbd/0x310
[  262.651029]  ? kasan_check_read+0x11/0x20
[  262.655205]  ? __run_timers+0x7da/0xc70
[  262.659180]  ? trace_hardirqs_off_caller+0x310/0x310
[  262.664303]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.668543]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.672776]  __run_timers+0x7e5/0xc70
[  262.676603]  ? timer_fixup_init+0x70/0x70
[  262.680752]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  262.685767]  ? zap_class+0x640/0x640
[  262.689501]  ? enqueue_hrtimer+0x1a5/0x560
[  262.693736]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  262.698937]  ? find_held_lock+0x36/0x1c0
[  262.703007]  ? zap_class+0x640/0x640
[  262.706729]  ? pvclock_read_flags+0x160/0x160
[  262.711255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.716795]  ? check_preemption_disabled+0x48/0x280
[  262.721847]  ? __lock_is_held+0xb5/0x140
[  262.725923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.731460]  ? check_preemption_disabled+0x48/0x280
[  262.736496]  run_timer_softirq+0x52/0xb0
[  262.740556]  ? rcu_read_lock_sched_held+0x14f/0x180
[  262.745582]  __do_softirq+0x308/0xb7e
[  262.749388]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  262.753882]  ? lock_downgrade+0x900/0x900
[  262.758038]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  262.763152]  ? pvclock_read_flags+0x160/0x160
[  262.767652]  ? lapic_next_event+0x5a/0x90
[  262.771803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.777345]  ? kvm_clock_read+0x18/0x30
[  262.781322]  ? kvm_sched_clock_read+0x9/0x20
[  262.785735]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.791272]  ? check_preemption_disabled+0x48/0x280
[  262.796301]  irq_exit+0x17f/0x1c0
[  262.799758]  smp_apic_timer_interrupt+0x1cb/0x760
[  262.804600]  ? smp_reschedule_interrupt+0x109/0x650
[  262.809613]  ? smp_call_function_single_interrupt+0x650/0x650
[  262.815508]  ? interrupt_entry+0xb5/0xc0
[  262.819568]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.824582]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.829597]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.834443]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.839479]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.844494]  ? task_prio+0x50/0x50
[  262.848036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.853591]  ? check_preemption_disabled+0x48/0x280
[  262.858610]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.863456]  apic_timer_interrupt+0xf/0x20
[  262.867682]  </IRQ>
[  262.869920] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  262.874866] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  262.893775] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  262.901481] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  262.908989] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  262.916256] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  262.923535] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  262.930800] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  262.938129]  skb_clone+0x1bb/0x500
[  262.941667]  ? finish_task_switch+0x2f4/0x910
[  262.946171]  ? skb_split+0x11e0/0x11e0
[  262.950055]  ? preempt_notifier_register+0x200/0x200
[  262.955153]  ? __switch_to_asm+0x34/0x70
[  262.959202]  ? __switch_to_asm+0x34/0x70
[  262.963303]  ? __switch_to_asm+0x40/0x70
[  262.967371]  ? __switch_to_asm+0x34/0x70
[  262.971417]  ? __switch_to_asm+0x40/0x70
[  262.975466]  ? __switch_to_asm+0x34/0x70
[  262.979530]  ? __switch_to_asm+0x40/0x70
[  262.983595]  ? __switch_to_asm+0x34/0x70
[  262.987643]  ? __switch_to_asm+0x34/0x70
[  262.991700]  ? __switch_to_asm+0x40/0x70
[  262.995748]  ? __switch_to_asm+0x34/0x70
[  262.999818]  bpf_clone_redirect+0xb9/0x490
[  263.004050]  ? __schedule+0x8d7/0x21d0
[  263.007933]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  263.012943]  ? __sched_text_start+0x8/0x8
[  263.017084]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  263.021848]  ? find_held_lock+0x36/0x1c0
[  263.025922]  ? lock_acquire+0x1ed/0x520
[  263.029903]  ? bpf_test_run+0x3cb/0x780
[  263.033871]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.039424]  ? check_preemption_disabled+0x48/0x280
[  263.044464]  ? kasan_check_read+0x11/0x20
[  263.048606]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.053880]  ? rcu_softirq_qs+0x20/0x20
[  263.057851]  ? preempt_schedule+0x4d/0x60
[  263.061990]  ? ___preempt_schedule+0x16/0x18
[  263.066397]  ? bpf_test_run+0x25d/0x780
[  263.070376]  ? netlink_diag_dump+0x2a0/0x2a0
[  263.074778]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.080304]  ? bpf_test_init.isra.10+0x70/0x100
[  263.084970]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  263.089728]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  263.094578]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  263.100109]  ? fput+0x130/0x1a0
[  263.103406]  ? __bpf_prog_get+0x9b/0x290
[  263.107481]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  263.112317]  ? bpf_prog_test_run+0x130/0x1a0
[  263.116726]  ? __x64_sys_bpf+0x3d8/0x520
[  263.120793]  ? bpf_prog_get+0x20/0x20
[  263.124606]  ? do_syscall_64+0x1b9/0x820
[  263.128661]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  263.134025]  ? syscall_return_slowpath+0x5e0/0x5e0
[  263.138987]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.143996]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  263.149020]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  263.155681]  ? __switch_to_asm+0x40/0x70
[  263.159734]  ? __switch_to_asm+0x34/0x70
[  263.163813]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.168660]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  263.174037] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  263.174105] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  263.181076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  263.181084] Call Trace:
[  263.187655] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  263.196913]  <IRQ>
[  263.199498] syz-executor3 cpuset=syz3 mems_allowed=0
[  263.209976]  dump_stack+0x244/0x39d
[  263.220796]  ? dump_stack_print_info.cold.1+0x20/0x20
[  263.226010]  warn_alloc.cold.116+0xb7/0x1bd
[  263.230366]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  263.235217]  ? lock_downgrade+0x900/0x900
[  263.239368]  ? trace_hardirqs_off+0xb8/0x310
[  263.243810]  ? trace_hardirqs_off+0xb8/0x310
[  263.248240]  __alloc_pages_slowpath+0x26e8/0x2e10
[  263.253105]  ? warn_alloc+0x120/0x120
[  263.256904]  ? print_usage_bug+0xc0/0xc0
[  263.260961]  ? warn_alloc+0x120/0x120
[  263.264762]  ? warn_alloc+0x120/0x120
[  263.268558]  ? print_usage_bug+0xc0/0xc0
[  263.272618]  ? print_usage_bug+0xc0/0xc0
[  263.276703]  ? __lock_acquire+0x62f/0x4c20
[  263.280951]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.286483]  ? should_fail+0x22d/0xd01
[  263.290368]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.295476]  ? __lock_acquire+0x62f/0x4c20
[  263.299707]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.304799]  ? __lock_acquire+0x62f/0x4c20
[  263.309021]  ? should_fail+0x22d/0xd01
[  263.312914]  ? find_held_lock+0x36/0x1c0
[  263.316977]  ? mark_held_locks+0x130/0x130
[  263.321211]  ? mark_held_locks+0x130/0x130
[  263.325437]  ? zap_class+0x640/0x640
[  263.329140]  ? zap_class+0x640/0x640
[  263.332896]  ? print_usage_bug+0xc0/0xc0
[  263.336969]  ? do_raw_spin_unlock+0xa7/0x330
[  263.341399]  ? zap_class+0x640/0x640
[  263.345114]  ? print_usage_bug+0xc0/0xc0
[  263.349197]  ? wq_watchdog_touch+0x9c/0xfe
[  263.353453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.359007]  ? check_preemption_disabled+0x48/0x280
[  263.364053]  ? __lock_is_held+0xb5/0x140
[  263.368128]  __alloc_pages_nodemask+0xa80/0xde0
[  263.372800]  ? zap_class+0x640/0x640
[  263.376507]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  263.381525]  ? find_held_lock+0x36/0x1c0
[  263.385624]  ? ____cache_alloc_node+0x1c7/0x1e0
[  263.390319]  ? lock_downgrade+0x900/0x900
[  263.394479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.400012]  cache_grow_begin+0xa5/0x8c0
[  263.404096]  ? do_raw_spin_unlock+0xa7/0x330
[  263.408532]  fallback_alloc+0x204/0x2e0
[  263.412520]  ____cache_alloc_node+0x1c7/0x1e0
[  263.417016]  kmem_cache_alloc_node+0xe3/0x730
[  263.421507]  ? ipv6_get_ifaddr+0x42e/0x620
[  263.425745]  __alloc_skb+0x119/0x770
[  263.429450]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.434727]  ? netdev_alloc_frag+0x1f0/0x1f0
[  263.439128]  ? lock_downgrade+0x900/0x900
[  263.443278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.448828]  ? refcount_sub_and_test_checked+0x203/0x310
[  263.454298]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  263.459741]  ? addrconf_rs_timer+0x690/0x690
[  263.464151]  ndisc_alloc_skb+0x144/0x340
[  263.468224]  ndisc_send_rs+0x331/0x6e0
[  263.472113]  addrconf_rs_timer+0x314/0x690
[  263.476378]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.480653]  call_timer_fn+0x272/0x920
[  263.484533]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.488760]  ? process_timeout+0x40/0x40
[  263.492838]  ? mark_held_locks+0xc7/0x130
[  263.496992]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.501483]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.505977]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.510209]  ? lockdep_hardirqs_on+0x296/0x5b0
[  263.514785]  ? trace_hardirqs_on+0xbd/0x310
[  263.519098]  ? kasan_check_read+0x11/0x20
[  263.523240]  ? __run_timers+0x7da/0xc70
[  263.527208]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.532309]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.536564]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  263.540789]  __run_timers+0x7e5/0xc70
[  263.544589]  ? timer_fixup_init+0x70/0x70
[  263.548730]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  263.553756]  ? zap_class+0x640/0x640
[  263.557474]  ? print_usage_bug+0xc0/0xc0
[  263.561524]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  263.566708]  ? find_held_lock+0x36/0x1c0
[  263.570783]  ? zap_class+0x640/0x640
[  263.574493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.580024]  ? check_preemption_disabled+0x48/0x280
[  263.585040]  ? __lock_is_held+0xb5/0x140
[  263.589111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.594660]  ? check_preemption_disabled+0x48/0x280
[  263.599688]  run_timer_softirq+0x52/0xb0
[  263.603745]  ? rcu_read_lock_sched_held+0x14f/0x180
[  263.608775]  __do_softirq+0x308/0xb7e
[  263.612575]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  263.617065]  ? lock_downgrade+0x900/0x900
[  263.621247]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  263.626360]  ? pvclock_read_flags+0x160/0x160
[  263.630868]  ? lapic_next_event+0x5a/0x90
[  263.635019]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.640560]  ? kvm_clock_read+0x18/0x30
[  263.644536]  ? kvm_sched_clock_read+0x9/0x20
[  263.648963]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.654501]  ? check_preemption_disabled+0x48/0x280
[  263.659522]  irq_exit+0x17f/0x1c0
[  263.663005]  smp_apic_timer_interrupt+0x1cb/0x760
[  263.667849]  ? smp_reschedule_interrupt+0x109/0x650
[  263.672904]  ? smp_call_function_single_interrupt+0x650/0x650
[  263.678808]  ? interrupt_entry+0xb5/0xc0
[  263.682893]  ? trace_hardirqs_off_caller+0xbb/0x310
[  263.687906]  ? trace_hardirqs_off_caller+0xbb/0x310
[  263.692939]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.697787]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.702803]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.707850]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.712702]  apic_timer_interrupt+0xf/0x20
[  263.716930]  </IRQ>
[  263.719166] RIP: 0010:dump_stack+0x358/0x39d
[  263.723587] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  263.742654] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  263.750362] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  263.757650] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  263.764921] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  263.772203] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  263.779465] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  263.786743]  ? dump_stack+0x34f/0x39d
[  263.790555]  ? dump_stack_print_info.cold.1+0x20/0x20
[  263.795749]  ? mark_held_locks+0x130/0x130
[  263.799984]  ? mark_held_locks+0x130/0x130
[  263.804222]  dump_header+0x27b/0xf72
[  263.807949]  ? pagefault_out_of_memory+0x197/0x197
[  263.812888]  ? __lock_acquire+0x62f/0x4c20
[  263.817127]  ? percpu_ref_get_many+0x240/0x240
[  263.821711]  ? print_usage_bug+0xc0/0xc0
[  263.825775]  ? zap_class+0x640/0x640
[  263.829489]  ? print_usage_bug+0xc0/0xc0
[  263.833545]  ? print_usage_bug+0xc0/0xc0
[  263.837609]  ? zap_class+0x640/0x640
[  263.841356]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.846913]  ? find_held_lock+0x36/0x1c0
[  263.850980]  ? mark_held_locks+0xc7/0x130
[  263.855146]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  263.860247]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  263.865346]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  263.869955]  ? trace_hardirqs_on+0xbd/0x310
[  263.874752]  ? kasan_check_read+0x11/0x20
[  263.878911]  ? ___ratelimit+0x3b4/0x672
[  263.882900]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.888002]  ? trace_hardirqs_on+0x310/0x310
[  263.892409]  ? lock_downgrade+0x900/0x900
[  263.896560]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  263.901658]  ? ___ratelimit+0x3b9/0x672
[  263.905632]  ? idr_get_free+0xf70/0xf70
[  263.909611]  ? find_held_lock+0x36/0x1c0
[  263.913706]  oom_kill_process.cold.27+0x10/0x903
[  263.918460]  ? zap_class+0x640/0x640
[  263.922171]  ? check_preemption_disabled+0x48/0x280
[  263.927220]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.932161]  ? kasan_check_read+0x11/0x20
[  263.936301]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.941590]  ? oom_evaluate_task+0x540/0x540
[  263.945997]  ? find_held_lock+0x36/0x1c0
[  263.950076]  ? out_of_memory+0x974/0x1430
[  263.954233]  ? lock_downgrade+0x900/0x900
[  263.958378]  ? check_preemption_disabled+0x48/0x280
[  263.963419]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.968359]  ? kasan_check_read+0x11/0x20
[  263.972534]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.977816]  ? rcu_softirq_qs+0x20/0x20
[  263.981799]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.987355]  ? oom_evaluate_task+0x302/0x540
[  263.991762]  out_of_memory+0xa84/0x1430
[  263.995734]  ? oom_killer_disable+0x3a0/0x3a0
[  264.000220]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  264.005177]  ? __ww_mutex_check_waiters+0x160/0x160
[  264.010211]  __alloc_pages_slowpath+0x2354/0x2e10
[  264.015072]  ? warn_alloc+0x120/0x120
[  264.018885]  ? mark_held_locks+0x130/0x130
[  264.023121]  ? find_get_entry+0xaae/0x1120
[  264.027406]  ? filemap_map_pages+0x1a20/0x1a20
[  264.031992]  ? zap_class+0x640/0x640
[  264.035707]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.041251]  ? check_preemption_disabled+0x48/0x280
[  264.046280]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.051814]  ? should_fail+0x22d/0xd01
[  264.055704]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.060829]  ? zap_class+0x640/0x640
[  264.064586]  ? __lock_is_held+0xb5/0x140
[  264.068657]  ? mark_held_locks+0x130/0x130
[  264.072896]  ? lock_release+0xa00/0xa00
[  264.076878]  ? perf_trace_sched_process_exec+0x860/0x860
[  264.082327]  ? xa_load+0x2ba/0x460
[  264.085887]  ? lock_downgrade+0x900/0x900
[  264.090053]  ? __might_sleep+0x95/0x190
[  264.094043]  __alloc_pages_nodemask+0xa80/0xde0
[  264.098729]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  264.103760]  ? __page_cache_alloc+0x191/0x5c0
[  264.108259]  ? xa_load+0x2e1/0x460
[  264.111802]  ? xa_clear_mark+0x40/0x40
[  264.115690]  ? zap_class+0x640/0x640
[  264.119411]  ? zap_class+0x640/0x640
[  264.123122]  ? zap_class+0x640/0x640
[  264.126832]  ? __do_page_cache_readahead+0x663/0x810
[  264.131977]  ? find_held_lock+0x36/0x1c0
[  264.136047]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  264.141595]  alloc_pages_current+0x173/0x350
[  264.146010]  __page_cache_alloc+0x38c/0x5c0
[  264.150328]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  264.155258]  ? kasan_check_read+0x11/0x20
[  264.159411]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.164686]  ? generic_perform_write+0x6a0/0x6a0
[  264.169486]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.175024]  ? check_preemption_disabled+0x48/0x280
[  264.180047]  filemap_fault+0x1595/0x25f0
[  264.184121]  ? __lock_page_or_retry+0xa00/0xa00
[  264.188806]  ? mark_held_locks+0x130/0x130
[  264.193050]  ? filemap_map_pages+0xd6b/0x1a20
[  264.197548]  ? lock_downgrade+0x900/0x900
[  264.201691]  ? check_preemption_disabled+0x48/0x280
[  264.206725]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  264.211655]  ? kasan_check_read+0x11/0x20
[  264.215795]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.221065]  ? rcu_softirq_qs+0x20/0x20
[  264.225080]  ? filemap_map_pages+0xd92/0x1a20
[  264.229573]  ? print_usage_bug+0xc0/0xc0
[  264.233641]  ? find_get_entries_tag+0x1400/0x1400
[  264.238487]  ? __kasan_slab_free+0x102/0x150
[  264.242915]  ? kasan_slab_free+0xe/0x10
[  264.246902]  ? kmem_cache_free+0x83/0x290
[  264.251046]  ? __sigqueue_free.part.29+0x74/0x90
[  264.255816]  ? lock_acquire+0x1ed/0x520
[  264.259796]  ? ext4_filemap_fault+0x7a/0xad
[  264.264118]  ? lock_release+0xa00/0xa00
[  264.268089]  ? perf_trace_sched_process_exec+0x860/0x860
[  264.273546]  ? print_usage_bug+0xc0/0xc0
[  264.277604]  ? print_usage_bug+0xc0/0xc0
[  264.281670]  ? down_read+0x8d/0x120
[  264.285305]  ? ext4_filemap_fault+0x7a/0xad
[  264.289660]  ? __down_interruptible+0x700/0x700
[  264.294333]  ext4_filemap_fault+0x82/0xad
[  264.298475]  __do_fault+0x100/0x6b0
[  264.302131]  ? pmd_devmap_trans_unstable+0x220/0x220
[  264.307232]  ? mark_held_locks+0x130/0x130
[  264.311472]  ? mark_held_locks+0x130/0x130
[  264.315701]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  264.321236]  ? rcu_pm_notify+0xc0/0xc0
[  264.325161]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.330718]  __handle_mm_fault+0x3ea0/0x5be0
[  264.335134]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  264.339968]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.344457]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  264.349043]  ? trace_hardirqs_on+0xbd/0x310
[  264.353410]  ? kasan_check_read+0x11/0x20
[  264.357566]  ? __set_current_blocked+0xdf/0x120
[  264.362230]  ? trace_hardirqs_off_caller+0x310/0x310
[  264.367368]  ? zap_class+0x640/0x640
[  264.371075]  ? zap_class+0x640/0x640
[  264.374789]  ? find_held_lock+0x36/0x1c0
[  264.378877]  ? handle_mm_fault+0x42a/0xc70
[  264.383110]  ? lock_downgrade+0x900/0x900
[  264.387255]  ? check_preemption_disabled+0x48/0x280
[  264.392273]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  264.397205]  ? kasan_check_read+0x11/0x20
[  264.401380]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.406667]  ? rcu_softirq_qs+0x20/0x20
[  264.410643]  ? trace_hardirqs_off_caller+0x310/0x310
[  264.415769]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.421298]  ? check_preemption_disabled+0x48/0x280
[  264.426324]  handle_mm_fault+0x54f/0xc70
[  264.430431]  ? __handle_mm_fault+0x5be0/0x5be0
[  264.435049]  ? find_vma+0x34/0x190
[  264.438618]  __do_page_fault+0x5e8/0xe60
[  264.442675]  ? exit_to_usermode_loop+0x1f4/0x380
[  264.447448]  do_page_fault+0xf2/0x7e0
[  264.451243]  ? vmalloc_sync_all+0x30/0x30
[  264.455386]  ? error_entry+0x70/0xd0
[  264.459137]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.464167]  ? trace_hardirqs_on_caller+0xc0/0x310
[  264.469123]  ? syscall_return_slowpath+0x5e0/0x5e0
[  264.474120]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.478986]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.483995]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  264.489464]  ? prepare_exit_to_usermode+0x291/0x3b0
[  264.494475]  ? page_fault+0x8/0x30
[  264.498016]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.502867]  ? page_fault+0x8/0x30
[  264.506403]  page_fault+0x1e/0x30
[  264.509854] RIP: 0033:0x45db60
[  264.513048] Code: Bad RIP value.
[  264.516404] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  264.521753] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  264.529014] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  264.536287] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  264.543545] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  264.550801] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  264.558083] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  264.558088] warn_alloc_show_mem: 1 callbacks suppressed
[  264.558094] Mem-Info:
[  264.565412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  264.570771] active_anon:54051 inactive_anon:192 isolated_anon:0
[  264.570771]  active_file:9 inactive_file:20 isolated_file:0
[  264.570771]  unevictable:0 dirty:0 writeback:0 unstable:0
[  264.570771]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  264.570771]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  264.570771]  free:13735 free_pcp:540 free_cma:0
[  264.573182] Call Trace:
[  264.582562] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  264.615316]  <IRQ>
[  264.617883] 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
[  264.645290]  dump_stack+0x244/0x39d
[  264.647409] lowmem_reserve[]: 0 2818 6321 6321
[  264.673507]  ? dump_stack_print_info.cold.1+0x20/0x20
[  264.677118] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  264.681694]  warn_alloc.cold.116+0xb7/0x1bd
[  264.686852] lowmem_reserve[]: 0 0 3503 3503
[  264.714630]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  264.718925] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  264.723255]  ? lock_downgrade+0x900/0x900
[  264.728071] lowmem_reserve[]: 0 0 0 0
[  264.757264]  ? trace_hardirqs_off+0xb8/0x310
[  264.761387] 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
[  264.765182]  ? trace_hardirqs_off+0xb8/0x310
[  264.769562] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  264.783081]  __alloc_pages_slowpath+0x26e8/0x2e10
[  264.787463] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  264.802735]  ? warn_alloc+0x120/0x120
[  264.807536] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  264.821657]  ? print_usage_bug+0xc0/0xc0
[  264.825435] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  264.834272]  ? warn_alloc+0x120/0x120
[  264.838310] 273 total pagecache pages
[  264.846879]  ? warn_alloc+0x120/0x120
[  264.850665] 0 pages in swap cache
[  264.854481]  ? print_usage_bug+0xc0/0xc0
[  264.858273] Swap cache stats: add 0, delete 0, find 0/0
[  264.861719]  ? kvm_clock_read+0x18/0x30
[  264.865752] Free swap  = 0kB
[  264.871116]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  264.875062] Total swap = 0kB
[  264.878078]  ? print_usage_bug+0xc0/0xc0
[  264.883067] 1965979 pages RAM
[  264.886077]  ? __lock_acquire+0x62f/0x4c20
[  264.890111] 0 pages HighMem/MovableOnly
[  264.893211]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.897437] 342853 pages reserved
[  264.901401]  ? should_fail+0x22d/0xd01
[  264.906914] 0 pages cma reserved
[  264.910358]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.914283] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  264.917583]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.922979] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  264.929370]  ? __lock_acquire+0x62f/0x4c20
[  264.934457] syz-fuzzer cpuset=/ mems_allowed=0
[  264.944673]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.958579]  ? __lock_acquire+0x62f/0x4c20
[  264.962815]  ? should_fail+0x22d/0xd01
[  264.966722]  ? rcu_irq_exit+0x1a2/0x390
[  264.970703]  ? mark_held_locks+0x130/0x130
[  264.974960]  ? mark_held_locks+0x130/0x130
[  264.979198]  ? mark_held_locks+0xc7/0x130
[  264.983343]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  264.988354]  ? zap_class+0x640/0x640
[  264.992060]  ? print_usage_bug+0xc0/0xc0
[  264.996146]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.001688]  ? check_preemption_disabled+0x48/0x280
[  265.006715]  ? __lock_is_held+0xb5/0x140
[  265.010796]  __alloc_pages_nodemask+0xa80/0xde0
[  265.015486]  ? zap_class+0x640/0x640
[  265.019225]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  265.024250]  ? find_held_lock+0x36/0x1c0
[  265.028317]  ? ____cache_alloc_node+0x1c7/0x1e0
[  265.032985]  ? lock_downgrade+0x900/0x900
[  265.037184]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.042735]  cache_grow_begin+0xa5/0x8c0
[  265.046795]  ? do_raw_spin_unlock+0xa7/0x330
[  265.051211]  fallback_alloc+0x204/0x2e0
[  265.055196]  ____cache_alloc_node+0x1c7/0x1e0
[  265.059696]  kmem_cache_alloc_node+0xe3/0x730
[  265.064202]  ? ipv6_get_ifaddr+0x42e/0x620
[  265.068452]  __alloc_skb+0x119/0x770
[  265.072170]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.077452]  ? netdev_alloc_frag+0x1f0/0x1f0
[  265.081874]  ? lock_downgrade+0x900/0x900
[  265.086035]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.091574]  ? refcount_sub_and_test_checked+0x203/0x310
[  265.097031]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  265.102483]  ? addrconf_rs_timer+0x690/0x690
[  265.106937]  ndisc_alloc_skb+0x144/0x340
[  265.111010]  ndisc_send_rs+0x331/0x6e0
[  265.114951]  addrconf_rs_timer+0x314/0x690
[  265.119195]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.123442]  call_timer_fn+0x272/0x920
[  265.127327]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.131561]  ? process_timeout+0x40/0x40
[  265.135656]  ? __run_timers+0x7da/0xc70
[  265.139641]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.144151]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.148642]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.152885]  ? lockdep_hardirqs_on+0x296/0x5b0
[  265.157471]  ? trace_hardirqs_on+0xbd/0x310
[  265.161792]  ? kasan_check_read+0x11/0x20
[  265.165941]  ? __run_timers+0x7da/0xc70
[  265.169916]  ? trace_hardirqs_off_caller+0x310/0x310
[  265.175021]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.179263]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.183523]  __run_timers+0x7e5/0xc70
[  265.187350]  ? timer_fixup_init+0x70/0x70
[  265.191505]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  265.196525]  ? zap_class+0x640/0x640
[  265.200349]  ? enqueue_hrtimer+0x1a5/0x560
[  265.204586]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  265.209781]  ? find_held_lock+0x36/0x1c0
[  265.213880]  ? zap_class+0x640/0x640
[  265.217631]  ? pvclock_read_flags+0x160/0x160
[  265.222132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.227682]  ? check_preemption_disabled+0x48/0x280
[  265.232707]  ? __lock_is_held+0xb5/0x140
[  265.236784]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.242338]  ? check_preemption_disabled+0x48/0x280
[  265.247360]  run_timer_softirq+0x52/0xb0
[  265.251427]  ? rcu_read_lock_sched_held+0x14f/0x180
[  265.256475]  __do_softirq+0x308/0xb7e
[  265.260279]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  265.264782]  ? lock_downgrade+0x900/0x900
[  265.268934]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  265.274044]  ? pvclock_read_flags+0x160/0x160
[  265.278541]  ? lapic_next_event+0x5a/0x90
[  265.282693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.288237]  ? kvm_clock_read+0x18/0x30
[  265.292216]  ? kvm_sched_clock_read+0x9/0x20
[  265.296625]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.302167]  ? check_preemption_disabled+0x48/0x280
[  265.307194]  irq_exit+0x17f/0x1c0
[  265.310646]  smp_apic_timer_interrupt+0x1cb/0x760
[  265.315487]  ? smp_reschedule_interrupt+0x109/0x650
[  265.320505]  ? smp_call_function_single_interrupt+0x650/0x650
[  265.326419]  ? interrupt_entry+0xb5/0xc0
[  265.330484]  ? trace_hardirqs_off_caller+0xbb/0x310
[  265.335513]  ? trace_hardirqs_off_caller+0xbb/0x310
[  265.340531]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.345371]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.350380]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.355396]  ? task_prio+0x50/0x50
[  265.358942]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.364482]  ? check_preemption_disabled+0x48/0x280
[  265.369517]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.374366]  apic_timer_interrupt+0xf/0x20
[  265.378606]  </IRQ>
[  265.380854] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  265.385789] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  265.404684] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  265.412391] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  265.419662] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  265.426933] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  265.434204] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  265.441470] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  265.448770]  skb_clone+0x1bb/0x500
[  265.452310]  ? finish_task_switch+0x2f4/0x910
[  265.456808]  ? skb_split+0x11e0/0x11e0
[  265.460699]  ? preempt_notifier_register+0x200/0x200
[  265.465803]  ? __switch_to_asm+0x34/0x70
[  265.469867]  ? __switch_to_asm+0x34/0x70
[  265.473925]  ? __switch_to_asm+0x40/0x70
[  265.477988]  ? __switch_to_asm+0x34/0x70
[  265.482050]  ? __switch_to_asm+0x40/0x70
[  265.486161]  ? __switch_to_asm+0x34/0x70
[  265.490218]  ? __switch_to_asm+0x40/0x70
[  265.494274]  ? __switch_to_asm+0x34/0x70
[  265.498331]  ? __switch_to_asm+0x34/0x70
[  265.502402]  ? __switch_to_asm+0x40/0x70
[  265.506459]  ? __switch_to_asm+0x34/0x70
[  265.510522]  bpf_clone_redirect+0xb9/0x490
[  265.514758]  ? __schedule+0x8d7/0x21d0
[  265.518649]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  265.523668]  ? __sched_text_start+0x8/0x8
[  265.527815]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  265.532591]  ? find_held_lock+0x36/0x1c0
[  265.536664]  ? lock_acquire+0x1ed/0x520
[  265.540642]  ? bpf_test_run+0x3cb/0x780
[  265.544617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.550162]  ? check_preemption_disabled+0x48/0x280
[  265.555187]  ? kasan_check_read+0x11/0x20
[  265.559339]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.564619]  ? rcu_softirq_qs+0x20/0x20
[  265.568594]  ? preempt_schedule+0x4d/0x60
[  265.572741]  ? ___preempt_schedule+0x16/0x18
[  265.577160]  ? bpf_test_run+0x25d/0x780
[  265.581153]  ? netlink_diag_dump+0x2a0/0x2a0
[  265.585563]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.591103]  ? bpf_test_init.isra.10+0x70/0x100
[  265.595777]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  265.600543]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  265.605385]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  265.610925]  ? fput+0x130/0x1a0
[  265.614206]  ? __bpf_prog_get+0x9b/0x290
[  265.618271]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  265.623115]  ? bpf_prog_test_run+0x130/0x1a0
[  265.627531]  ? __x64_sys_bpf+0x3d8/0x520
[  265.631591]  ? bpf_prog_get+0x20/0x20
[  265.635411]  ? do_syscall_64+0x1b9/0x820
[  265.639473]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  265.644837]  ? syscall_return_slowpath+0x5e0/0x5e0
[  265.649779]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.654796]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  265.659812]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  265.666483]  ? __switch_to_asm+0x40/0x70
[  265.670542]  ? __switch_to_asm+0x34/0x70
[  265.674608]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.679488]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  265.684879] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  265.684949] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  265.691899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  265.691907] Call Trace:
[  265.698471] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  265.707727]  <IRQ>
[  265.710296] syz-executor3 cpuset=syz3 mems_allowed=0
[  265.720796]  dump_stack+0x244/0x39d
[  265.731656]  ? dump_stack_print_info.cold.1+0x20/0x20
[  265.736880]  warn_alloc.cold.116+0xb7/0x1bd
[  265.741207]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  265.746189]  ? lock_downgrade+0x900/0x900
[  265.750351]  ? trace_hardirqs_off+0xb8/0x310
[  265.754765]  ? trace_hardirqs_off+0xb8/0x310
[  265.759185]  __alloc_pages_slowpath+0x26e8/0x2e10
[  265.764066]  ? warn_alloc+0x120/0x120
[  265.767876]  ? print_usage_bug+0xc0/0xc0
[  265.771939]  ? warn_alloc+0x120/0x120
[  265.775749]  ? warn_alloc+0x120/0x120
[  265.779549]  ? print_usage_bug+0xc0/0xc0
[  265.783625]  ? kvm_clock_read+0x18/0x30
[  265.787608]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  265.792630]  ? print_usage_bug+0xc0/0xc0
[  265.796713]  ? __lock_acquire+0x62f/0x4c20
[  265.800958]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.806499]  ? should_fail+0x22d/0xd01
[  265.810400]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.815695]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.820795]  ? __lock_acquire+0x62f/0x4c20
[  265.825039]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.830140]  ? __lock_acquire+0x62f/0x4c20
[  265.834374]  ? should_fail+0x22d/0xd01
[  265.838263]  ? rcu_irq_exit+0x1a2/0x390
[  265.842251]  ? mark_held_locks+0x130/0x130
[  265.846490]  ? mark_held_locks+0x130/0x130
[  265.850733]  ? mark_held_locks+0xc7/0x130
[  265.854880]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  265.859901]  ? zap_class+0x640/0x640
[  265.863627]  ? print_usage_bug+0xc0/0xc0
[  265.867706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.873689]  ? check_preemption_disabled+0x48/0x280
[  265.878731]  ? __lock_is_held+0xb5/0x140
[  265.882812]  __alloc_pages_nodemask+0xa80/0xde0
[  265.887490]  ? zap_class+0x640/0x640
[  265.891208]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  265.896235]  ? find_held_lock+0x36/0x1c0
[  265.900311]  ? ____cache_alloc_node+0x1c7/0x1e0
[  265.904982]  ? lock_downgrade+0x900/0x900
[  265.909136]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.914679]  cache_grow_begin+0xa5/0x8c0
[  265.918752]  ? do_raw_spin_unlock+0xa7/0x330
[  265.923170]  fallback_alloc+0x204/0x2e0
[  265.927210]  ____cache_alloc_node+0x1c7/0x1e0
[  265.931712]  kmem_cache_alloc_node+0xe3/0x730
[  265.936210]  ? ipv6_get_ifaddr+0x42e/0x620
[  265.940455]  __alloc_skb+0x119/0x770
[  265.944168]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.949451]  ? netdev_alloc_frag+0x1f0/0x1f0
[  265.953866]  ? lock_downgrade+0x900/0x900
[  265.958022]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.963562]  ? refcount_sub_and_test_checked+0x203/0x310
[  265.969021]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  265.974470]  ? addrconf_rs_timer+0x690/0x690
[  265.978893]  ndisc_alloc_skb+0x144/0x340
[  265.982962]  ndisc_send_rs+0x331/0x6e0
[  265.986859]  addrconf_rs_timer+0x314/0x690
[  265.991102]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.995349]  call_timer_fn+0x272/0x920
[  265.999239]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.003478]  ? process_timeout+0x40/0x40
[  266.007546]  ? mark_held_locks+0xc7/0x130
[  266.011711]  ? _raw_spin_unlock_irq+0x27/0x80
[  266.016207]  ? _raw_spin_unlock_irq+0x27/0x80
[  266.020701]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.024934]  ? lockdep_hardirqs_on+0x296/0x5b0
[  266.029532]  ? trace_hardirqs_on+0xbd/0x310
[  266.033859]  ? kasan_check_read+0x11/0x20
[  266.038009]  ? __run_timers+0x7da/0xc70
[  266.041983]  ? trace_hardirqs_off_caller+0x310/0x310
[  266.047092]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.051345]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.055592]  __run_timers+0x7e5/0xc70
[  266.059399]  ? timer_fixup_init+0x70/0x70
[  266.063563]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  266.068579]  ? zap_class+0x640/0x640
[  266.072302]  ? print_usage_bug+0xc0/0xc0
[  266.076378]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  266.081590]  ? find_held_lock+0x36/0x1c0
[  266.085669]  ? zap_class+0x640/0x640
[  266.089380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.094915]  ? check_preemption_disabled+0x48/0x280
[  266.099937]  ? __lock_is_held+0xb5/0x140
[  266.103992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.109538]  ? check_preemption_disabled+0x48/0x280
[  266.114559]  run_timer_softirq+0x52/0xb0
[  266.118618]  ? rcu_read_lock_sched_held+0x14f/0x180
[  266.123633]  __do_softirq+0x308/0xb7e
[  266.127484]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  266.132003]  ? lock_downgrade+0x900/0x900
[  266.136183]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  266.141554]  ? pvclock_read_flags+0x160/0x160
[  266.146064]  ? lapic_next_event+0x5a/0x90
[  266.150214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.155755]  ? kvm_clock_read+0x18/0x30
[  266.159729]  ? kvm_sched_clock_read+0x9/0x20
[  266.164135]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.169675]  ? check_preemption_disabled+0x48/0x280
[  266.174698]  irq_exit+0x17f/0x1c0
[  266.178165]  smp_apic_timer_interrupt+0x1cb/0x760
[  266.183054]  ? smp_reschedule_interrupt+0x109/0x650
[  266.188068]  ? smp_call_function_single_interrupt+0x650/0x650
[  266.193950]  ? interrupt_entry+0xb5/0xc0
[  266.198008]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.203024]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.208057]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.212896]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.217908]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.222933]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.227780]  apic_timer_interrupt+0xf/0x20
[  266.232010]  </IRQ>
[  266.234249] RIP: 0010:dump_stack+0x358/0x39d
[  266.238656] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  266.257548] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  266.265248] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  266.272539] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  266.279799] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  266.287063] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  266.294340] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  266.301615]  ? dump_stack+0x34f/0x39d
[  266.305425]  ? dump_stack_print_info.cold.1+0x20/0x20
[  266.310611]  ? mark_held_locks+0x130/0x130
[  266.314851]  ? mark_held_locks+0x130/0x130
[  266.319100]  dump_header+0x27b/0xf72
[  266.322819]  ? pagefault_out_of_memory+0x197/0x197
[  266.327751]  ? __lock_acquire+0x62f/0x4c20
[  266.331979]  ? percpu_ref_get_many+0x240/0x240
[  266.336567]  ? print_usage_bug+0xc0/0xc0
[  266.340662]  ? zap_class+0x640/0x640
[  266.344398]  ? print_usage_bug+0xc0/0xc0
[  266.348502]  ? print_usage_bug+0xc0/0xc0
[  266.352553]  ? zap_class+0x640/0x640
[  266.356265]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.361802]  ? find_held_lock+0x36/0x1c0
[  266.365895]  ? mark_held_locks+0xc7/0x130
[  266.370038]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  266.375161]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  266.380263]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  266.384891]  ? trace_hardirqs_on+0xbd/0x310
[  266.389203]  ? kasan_check_read+0x11/0x20
[  266.393344]  ? ___ratelimit+0x3b4/0x672
[  266.397331]  ? trace_hardirqs_off_caller+0x310/0x310
[  266.402426]  ? trace_hardirqs_on+0x310/0x310
[  266.406827]  ? lock_downgrade+0x900/0x900
[  266.410989]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  266.416096]  ? ___ratelimit+0x3b9/0x672
[  266.420070]  ? idr_get_free+0xf70/0xf70
[  266.424037]  ? find_held_lock+0x36/0x1c0
[  266.428098]  oom_kill_process.cold.27+0x10/0x903
[  266.432854]  ? zap_class+0x640/0x640
[  266.436581]  ? check_preemption_disabled+0x48/0x280
[  266.441590]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  266.446520]  ? kasan_check_read+0x11/0x20
[  266.450684]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.455955]  ? oom_evaluate_task+0x540/0x540
[  266.460363]  ? find_held_lock+0x36/0x1c0
[  266.464438]  ? out_of_memory+0x974/0x1430
[  266.468622]  ? lock_downgrade+0x900/0x900
[  266.472775]  ? check_preemption_disabled+0x48/0x280
[  266.477789]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  266.482732]  ? kasan_check_read+0x11/0x20
[  266.486889]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.492167]  ? rcu_softirq_qs+0x20/0x20
[  266.496137]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.501681]  ? oom_evaluate_task+0x302/0x540
[  266.506171]  out_of_memory+0xa84/0x1430
[  266.510143]  ? oom_killer_disable+0x3a0/0x3a0
[  266.514655]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  266.519598]  ? __ww_mutex_check_waiters+0x160/0x160
[  266.524617]  __alloc_pages_slowpath+0x2354/0x2e10
[  266.529486]  ? warn_alloc+0x120/0x120
[  266.533278]  ? mark_held_locks+0x130/0x130
[  266.537510]  ? find_get_entry+0xaae/0x1120
[  266.541746]  ? filemap_map_pages+0x1a20/0x1a20
[  266.546329]  ? zap_class+0x640/0x640
[  266.550040]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.555577]  ? check_preemption_disabled+0x48/0x280
[  266.560589]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.566118]  ? should_fail+0x22d/0xd01
[  266.570002]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  266.575101]  ? zap_class+0x640/0x640
[  266.578829]  ? __lock_is_held+0xb5/0x140
[  266.582961]  ? mark_held_locks+0x130/0x130
[  266.587195]  ? lock_release+0xa00/0xa00
[  266.591167]  ? perf_trace_sched_process_exec+0x860/0x860
[  266.596614]  ? xa_load+0x2ba/0x460
[  266.600156]  ? lock_downgrade+0x900/0x900
[  266.604330]  ? __might_sleep+0x95/0x190
[  266.608306]  __alloc_pages_nodemask+0xa80/0xde0
[  266.612998]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  266.618017]  ? __page_cache_alloc+0x191/0x5c0
[  266.622508]  ? xa_load+0x2e1/0x460
[  266.626047]  ? xa_clear_mark+0x40/0x40
[  266.629936]  ? zap_class+0x640/0x640
[  266.633661]  ? zap_class+0x640/0x640
[  266.637414]  ? zap_class+0x640/0x640
[  266.641125]  ? __do_page_cache_readahead+0x663/0x810
[  266.646248]  ? find_held_lock+0x36/0x1c0
[  266.650310]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  266.655855]  alloc_pages_current+0x173/0x350
[  266.660295]  __page_cache_alloc+0x38c/0x5c0
[  266.664610]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  266.669537]  ? kasan_check_read+0x11/0x20
[  266.673685]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.678960]  ? generic_perform_write+0x6a0/0x6a0
[  266.683711]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.689261]  ? check_preemption_disabled+0x48/0x280
[  266.694283]  filemap_fault+0x1595/0x25f0
[  266.698348]  ? __lock_page_or_retry+0xa00/0xa00
[  266.703010]  ? mark_held_locks+0x130/0x130
[  266.707248]  ? filemap_map_pages+0xd6b/0x1a20
[  266.711737]  ? lock_downgrade+0x900/0x900
[  266.715881]  ? check_preemption_disabled+0x48/0x280
[  266.720897]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  266.725820]  ? kasan_check_read+0x11/0x20
[  266.729982]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.735272]  ? rcu_softirq_qs+0x20/0x20
[  266.739269]  ? filemap_map_pages+0xd92/0x1a20
[  266.743767]  ? print_usage_bug+0xc0/0xc0
[  266.747838]  ? find_get_entries_tag+0x1400/0x1400
[  266.752705]  ? __kasan_slab_free+0x102/0x150
[  266.757103]  ? kasan_slab_free+0xe/0x10
[  266.761066]  ? kmem_cache_free+0x83/0x290
[  266.765232]  ? __sigqueue_free.part.29+0x74/0x90
[  266.770007]  ? lock_acquire+0x1ed/0x520
[  266.774074]  ? ext4_filemap_fault+0x7a/0xad
[  266.778425]  ? lock_release+0xa00/0xa00
[  266.782407]  ? perf_trace_sched_process_exec+0x860/0x860
[  266.787873]  ? print_usage_bug+0xc0/0xc0
[  266.791932]  ? print_usage_bug+0xc0/0xc0
[  266.796025]  ? down_read+0x8d/0x120
[  266.799649]  ? ext4_filemap_fault+0x7a/0xad
[  266.803964]  ? __down_interruptible+0x700/0x700
[  266.808633]  ext4_filemap_fault+0x82/0xad
[  266.812781]  __do_fault+0x100/0x6b0
[  266.816406]  ? pmd_devmap_trans_unstable+0x220/0x220
[  266.821539]  ? mark_held_locks+0x130/0x130
[  266.825788]  ? mark_held_locks+0x130/0x130
[  266.830020]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  266.835558]  ? rcu_pm_notify+0xc0/0xc0
[  266.839450]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.844987]  __handle_mm_fault+0x3ea0/0x5be0
[  266.849400]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  266.854263]  ? _raw_spin_unlock_irq+0x27/0x80
[  266.858768]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  266.863344]  ? trace_hardirqs_on+0xbd/0x310
[  266.867664]  ? kasan_check_read+0x11/0x20
[  266.871804]  ? __set_current_blocked+0xdf/0x120
[  266.876510]  ? trace_hardirqs_off_caller+0x310/0x310
[  266.881631]  ? zap_class+0x640/0x640
[  266.885363]  ? zap_class+0x640/0x640
[  266.889080]  ? find_held_lock+0x36/0x1c0
[  266.893143]  ? handle_mm_fault+0x42a/0xc70
[  266.897375]  ? lock_downgrade+0x900/0x900
[  266.901532]  ? check_preemption_disabled+0x48/0x280
[  266.906558]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  266.911479]  ? kasan_check_read+0x11/0x20
[  266.915635]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.920932]  ? rcu_softirq_qs+0x20/0x20
[  266.924900]  ? trace_hardirqs_off_caller+0x310/0x310
[  266.930002]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.935539]  ? check_preemption_disabled+0x48/0x280
[  266.940557]  handle_mm_fault+0x54f/0xc70
[  266.944632]  ? __handle_mm_fault+0x5be0/0x5be0
[  266.949219]  ? find_vma+0x34/0x190
[  266.952757]  __do_page_fault+0x5e8/0xe60
[  266.956827]  ? exit_to_usermode_loop+0x1f4/0x380
[  266.961585]  do_page_fault+0xf2/0x7e0
[  266.965386]  ? vmalloc_sync_all+0x30/0x30
[  266.969542]  ? error_entry+0x70/0xd0
[  266.973273]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.978282]  ? trace_hardirqs_on_caller+0xc0/0x310
[  266.983203]  ? syscall_return_slowpath+0x5e0/0x5e0
[  266.988138]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.992975]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.997989]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  267.003449]  ? prepare_exit_to_usermode+0x291/0x3b0
[  267.008493]  ? page_fault+0x8/0x30
[  267.012060]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.016914]  ? page_fault+0x8/0x30
[  267.020448]  page_fault+0x1e/0x30
[  267.023901] RIP: 0033:0x45db60
[  267.027098] Code: Bad RIP value.
[  267.030453] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  267.035833] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  267.043109] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  267.050363] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  267.057644] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  267.064901] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  267.072210] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  267.072214] warn_alloc_show_mem: 1 callbacks suppressed
[  267.072220] Mem-Info:
[  267.079519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  267.084887] active_anon:54051 inactive_anon:192 isolated_anon:0
[  267.084887]  active_file:9 inactive_file:20 isolated_file:0
[  267.084887]  unevictable:0 dirty:0 writeback:0 unstable:0
[  267.084887]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  267.084887]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  267.084887]  free:13735 free_pcp:540 free_cma:0
[  267.087257] Call Trace:
[  267.096661] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  267.129426]  <IRQ>
[  267.132006] 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
[  267.159406]  dump_stack+0x244/0x39d
[  267.161541] lowmem_reserve[]: 0 2818 6321 6321
[  267.187637]  ? dump_stack_print_info.cold.1+0x20/0x20
[  267.191241] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  267.195815]  warn_alloc.cold.116+0xb7/0x1bd
[  267.200968] lowmem_reserve[]: 0 0 3503 3503
[  267.228714]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  267.233012] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  267.237352]  ? lock_downgrade+0x900/0x900
[  267.242181] lowmem_reserve[]: 0 0 0 0
[  267.271263]  ? trace_hardirqs_off+0xb8/0x310
[  267.275383] 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
[  267.279205]  ? trace_hardirqs_off+0xb8/0x310
[  267.283596] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  267.297111]  __alloc_pages_slowpath+0x26e8/0x2e10
[  267.301488] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  267.316752]  ? warn_alloc+0x120/0x120
[  267.321556] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  267.335693]  ? print_usage_bug+0xc0/0xc0
[  267.339512] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  267.349453]  ? warn_alloc+0x120/0x120
[  267.353484] 273 total pagecache pages
[  267.362045]  ? warn_alloc+0x120/0x120
[  267.365837] 0 pages in swap cache
[  267.369639]  ? print_usage_bug+0xc0/0xc0
[  267.373417] Swap cache stats: add 0, delete 0, find 0/0
[  267.376858]  ? kvm_clock_read+0x18/0x30
[  267.380896] Free swap  = 0kB
[  267.386244]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  267.390193] Total swap = 0kB
[  267.393208]  ? print_usage_bug+0xc0/0xc0
[  267.398195] 1965979 pages RAM
[  267.401219]  ? __lock_acquire+0x62f/0x4c20
[  267.405281] 0 pages HighMem/MovableOnly
[  267.408371]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.412592] 342853 pages reserved
[  267.416554]  ? should_fail+0x22d/0xd01
[  267.422075] 0 pages cma reserved
[  267.425513]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.429432] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  267.432723]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.432736]  ? __lock_acquire+0x62f/0x4c20
[  267.432752]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.438069] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  267.444478]  ? __lock_acquire+0x62f/0x4c20
[  267.449552] syz-fuzzer cpuset=/ mems_allowed=0
[  267.453770]  ? should_fail+0x22d/0xd01
[  267.481727]  ? rcu_irq_exit+0x1a2/0x390
[  267.485714]  ? mark_held_locks+0x130/0x130
[  267.489945]  ? mark_held_locks+0x130/0x130
[  267.494178]  ? mark_held_locks+0xc7/0x130
[  267.498320]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  267.503332]  ? zap_class+0x640/0x640
[  267.507040]  ? print_usage_bug+0xc0/0xc0
[  267.511098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.516644]  ? check_preemption_disabled+0x48/0x280
[  267.521692]  ? __lock_is_held+0xb5/0x140
[  267.525748]  __alloc_pages_nodemask+0xa80/0xde0
[  267.530410]  ? zap_class+0x640/0x640
[  267.534118]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  267.539155]  ? find_held_lock+0x36/0x1c0
[  267.543256]  ? ____cache_alloc_node+0x1c7/0x1e0
[  267.547936]  ? lock_downgrade+0x900/0x900
[  267.552078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.557608]  cache_grow_begin+0xa5/0x8c0
[  267.561659]  ? do_raw_spin_unlock+0xa7/0x330
[  267.566065]  fallback_alloc+0x204/0x2e0
[  267.570037]  ____cache_alloc_node+0x1c7/0x1e0
[  267.574553]  kmem_cache_alloc_node+0xe3/0x730
[  267.579041]  ? ipv6_get_ifaddr+0x42e/0x620
[  267.583277]  __alloc_skb+0x119/0x770
[  267.586981]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.592258]  ? netdev_alloc_frag+0x1f0/0x1f0
[  267.596664]  ? lock_downgrade+0x900/0x900
[  267.600836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.606378]  ? refcount_sub_and_test_checked+0x203/0x310
[  267.611826]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  267.617294]  ? addrconf_rs_timer+0x690/0x690
[  267.621725]  ndisc_alloc_skb+0x144/0x340
[  267.625814]  ndisc_send_rs+0x331/0x6e0
[  267.629705]  addrconf_rs_timer+0x314/0x690
[  267.633957]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.638195]  call_timer_fn+0x272/0x920
[  267.642076]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.646336]  ? process_timeout+0x40/0x40
[  267.650400]  ? __run_timers+0x7da/0xc70
[  267.654384]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.658895]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.663382]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.667613]  ? lockdep_hardirqs_on+0x296/0x5b0
[  267.672217]  ? trace_hardirqs_on+0xbd/0x310
[  267.676532]  ? kasan_check_read+0x11/0x20
[  267.680697]  ? __run_timers+0x7da/0xc70
[  267.684665]  ? trace_hardirqs_off_caller+0x310/0x310
[  267.689783]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.694049]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.698274]  __run_timers+0x7e5/0xc70
[  267.702076]  ? timer_fixup_init+0x70/0x70
[  267.706217]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  267.711316]  ? zap_class+0x640/0x640
[  267.715026]  ? enqueue_hrtimer+0x1a5/0x560
[  267.719258]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  267.724479]  ? find_held_lock+0x36/0x1c0
[  267.728540]  ? zap_class+0x640/0x640
[  267.732255]  ? pvclock_read_flags+0x160/0x160
[  267.736742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.742419]  ? check_preemption_disabled+0x48/0x280
[  267.747451]  ? __lock_is_held+0xb5/0x140
[  267.751522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.757071]  ? check_preemption_disabled+0x48/0x280
[  267.762086]  run_timer_softirq+0x52/0xb0
[  267.766146]  ? rcu_read_lock_sched_held+0x14f/0x180
[  267.771161]  __do_softirq+0x308/0xb7e
[  267.774961]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  267.779453]  ? lock_downgrade+0x900/0x900
[  267.783600]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  267.788704]  ? pvclock_read_flags+0x160/0x160
[  267.793212]  ? lapic_next_event+0x5a/0x90
[  267.797358]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.802900]  ? kvm_clock_read+0x18/0x30
[  267.806882]  ? kvm_sched_clock_read+0x9/0x20
[  267.811289]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.816838]  ? check_preemption_disabled+0x48/0x280
[  267.821873]  irq_exit+0x17f/0x1c0
[  267.825325]  smp_apic_timer_interrupt+0x1cb/0x760
[  267.830164]  ? smp_reschedule_interrupt+0x109/0x650
[  267.835177]  ? smp_call_function_single_interrupt+0x650/0x650
[  267.841054]  ? interrupt_entry+0xb5/0xc0
[  267.845112]  ? trace_hardirqs_off_caller+0xbb/0x310
[  267.850129]  ? trace_hardirqs_off_caller+0xbb/0x310
[  267.855153]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.860008]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.865042]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.870056]  ? task_prio+0x50/0x50
[  267.873587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.879120]  ? check_preemption_disabled+0x48/0x280
[  267.884168]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.889019]  apic_timer_interrupt+0xf/0x20
[  267.893248]  </IRQ>
[  267.895488] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  267.900432] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  267.919509] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  267.927214] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  267.934663] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  267.941927] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  267.949192] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  267.956459] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  267.963763]  skb_clone+0x1bb/0x500
[  267.967322]  ? finish_task_switch+0x2f4/0x910
[  267.971817]  ? skb_split+0x11e0/0x11e0
[  267.975746]  ? preempt_notifier_register+0x200/0x200
[  267.980856]  ? __switch_to_asm+0x34/0x70
[  267.984918]  ? __switch_to_asm+0x34/0x70
[  267.988975]  ? __switch_to_asm+0x40/0x70
[  267.993032]  ? __switch_to_asm+0x34/0x70
[  267.997089]  ? __switch_to_asm+0x40/0x70
[  268.001153]  ? __switch_to_asm+0x34/0x70
[  268.005212]  ? __switch_to_asm+0x40/0x70
[  268.009270]  ? __switch_to_asm+0x34/0x70
[  268.013328]  ? __switch_to_asm+0x34/0x70
[  268.017384]  ? __switch_to_asm+0x40/0x70
[  268.021440]  ? __switch_to_asm+0x34/0x70
[  268.025507]  bpf_clone_redirect+0xb9/0x490
[  268.029746]  ? __schedule+0x8d7/0x21d0
[  268.033635]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  268.038649]  ? __sched_text_start+0x8/0x8
[  268.042792]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  268.047556]  ? find_held_lock+0x36/0x1c0
[  268.051617]  ? lock_acquire+0x1ed/0x520
[  268.055581]  ? bpf_test_run+0x3cb/0x780
[  268.059562]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.065092]  ? check_preemption_disabled+0x48/0x280
[  268.070106]  ? kasan_check_read+0x11/0x20
[  268.074278]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.079582]  ? rcu_softirq_qs+0x20/0x20
[  268.083579]  ? preempt_schedule+0x4d/0x60
[  268.087722]  ? ___preempt_schedule+0x16/0x18
[  268.092151]  ? bpf_test_run+0x25d/0x780
[  268.096128]  ? netlink_diag_dump+0x2a0/0x2a0
[  268.100558]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.106087]  ? bpf_test_init.isra.10+0x70/0x100
[  268.110755]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  268.115525]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  268.120417]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  268.125963]  ? fput+0x130/0x1a0
[  268.129238]  ? __bpf_prog_get+0x9b/0x290
[  268.133298]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  268.138132]  ? bpf_prog_test_run+0x130/0x1a0
[  268.142554]  ? __x64_sys_bpf+0x3d8/0x520
[  268.146607]  ? bpf_prog_get+0x20/0x20
[  268.150443]  ? do_syscall_64+0x1b9/0x820
[  268.154515]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  268.159875]  ? syscall_return_slowpath+0x5e0/0x5e0
[  268.164816]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.169829]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  268.174852]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  268.181511]  ? __switch_to_asm+0x40/0x70
[  268.185560]  ? __switch_to_asm+0x34/0x70
[  268.189622]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.194523]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  268.199924] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  268.200002] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  268.206925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  268.206929] Call Trace:
[  268.206934]  <IRQ>
[  268.206948]  dump_stack+0x244/0x39d
[  268.206967]  ? dump_stack_print_info.cold.1+0x20/0x20
[  268.213505] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  268.222779]  warn_alloc.cold.116+0xb7/0x1bd
[  268.225345] syz-executor3 cpuset=syz3 mems_allowed=0
[  268.227485]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  268.260938]  ? lock_downgrade+0x900/0x900
[  268.265087]  ? trace_hardirqs_off+0xb8/0x310
[  268.269506]  ? trace_hardirqs_off+0xb8/0x310
[  268.273921]  __alloc_pages_slowpath+0x26e8/0x2e10
[  268.278827]  ? warn_alloc+0x120/0x120
[  268.282649]  ? print_usage_bug+0xc0/0xc0
[  268.286705]  ? warn_alloc+0x120/0x120
[  268.290521]  ? warn_alloc+0x120/0x120
[  268.294318]  ? print_usage_bug+0xc0/0xc0
[  268.298390]  ? print_usage_bug+0xc0/0xc0
[  268.302459]  ? __lock_acquire+0x62f/0x4c20
[  268.306717]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.312247]  ? should_fail+0x22d/0xd01
[  268.316129]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  268.321237]  ? __lock_acquire+0x62f/0x4c20
[  268.325463]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  268.330567]  ? __lock_acquire+0x62f/0x4c20
[  268.334789]  ? should_fail+0x22d/0xd01
[  268.338670]  ? find_held_lock+0x36/0x1c0
[  268.342727]  ? mark_held_locks+0x130/0x130
[  268.346985]  ? mark_held_locks+0x130/0x130
[  268.351211]  ? zap_class+0x640/0x640
[  268.354914]  ? zap_class+0x640/0x640
[  268.358632]  ? print_usage_bug+0xc0/0xc0
[  268.362699]  ? do_raw_spin_unlock+0xa7/0x330
[  268.367097]  ? zap_class+0x640/0x640
[  268.370818]  ? print_usage_bug+0xc0/0xc0
[  268.374895]  ? wq_watchdog_touch+0x9c/0xfe
[  268.379123]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.384679]  ? check_preemption_disabled+0x48/0x280
[  268.389706]  ? __lock_is_held+0xb5/0x140
[  268.393764]  __alloc_pages_nodemask+0xa80/0xde0
[  268.398421]  ? zap_class+0x640/0x640
[  268.402143]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  268.407158]  ? find_held_lock+0x36/0x1c0
[  268.411217]  ? ____cache_alloc_node+0x1c7/0x1e0
[  268.415881]  ? lock_downgrade+0x900/0x900
[  268.420072]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.425604]  cache_grow_begin+0xa5/0x8c0
[  268.429679]  ? do_raw_spin_unlock+0xa7/0x330
[  268.434119]  fallback_alloc+0x204/0x2e0
[  268.438095]  ____cache_alloc_node+0x1c7/0x1e0
[  268.442585]  kmem_cache_alloc_node+0xe3/0x730
[  268.447354]  ? ipv6_get_ifaddr+0x42e/0x620
[  268.451588]  __alloc_skb+0x119/0x770
[  268.455302]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.460600]  ? netdev_alloc_frag+0x1f0/0x1f0
[  268.464997]  ? lock_downgrade+0x900/0x900
[  268.469168]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.474719]  ? refcount_sub_and_test_checked+0x203/0x310
[  268.480176]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  268.485620]  ? addrconf_rs_timer+0x690/0x690
[  268.490037]  ndisc_alloc_skb+0x144/0x340
[  268.494095]  ndisc_send_rs+0x331/0x6e0
[  268.497977]  addrconf_rs_timer+0x314/0x690
[  268.502229]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.506467]  call_timer_fn+0x272/0x920
[  268.510344]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.514570]  ? process_timeout+0x40/0x40
[  268.518633]  ? mark_held_locks+0xc7/0x130
[  268.522792]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.527275]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.531757]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.535985]  ? lockdep_hardirqs_on+0x296/0x5b0
[  268.540594]  ? trace_hardirqs_on+0xbd/0x310
[  268.544907]  ? kasan_check_read+0x11/0x20
[  268.549044]  ? __run_timers+0x7da/0xc70
[  268.553011]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.558137]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.562384]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.566614]  __run_timers+0x7e5/0xc70
[  268.570432]  ? timer_fixup_init+0x70/0x70
[  268.574607]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  268.579615]  ? zap_class+0x640/0x640
[  268.583332]  ? print_usage_bug+0xc0/0xc0
[  268.587386]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  268.592578]  ? find_held_lock+0x36/0x1c0
[  268.596635]  ? zap_class+0x640/0x640
[  268.600371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.605906]  ? check_preemption_disabled+0x48/0x280
[  268.610944]  ? __lock_is_held+0xb5/0x140
[  268.615004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.620536]  ? check_preemption_disabled+0x48/0x280
[  268.625568]  run_timer_softirq+0x52/0xb0
[  268.629625]  ? rcu_read_lock_sched_held+0x14f/0x180
[  268.634674]  __do_softirq+0x308/0xb7e
[  268.638470]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  268.642962]  ? lock_downgrade+0x900/0x900
[  268.647106]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  268.652227]  ? pvclock_read_flags+0x160/0x160
[  268.656717]  ? lapic_next_event+0x5a/0x90
[  268.660881]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.666415]  ? kvm_clock_read+0x18/0x30
[  268.670383]  ? kvm_sched_clock_read+0x9/0x20
[  268.674802]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.680337]  ? check_preemption_disabled+0x48/0x280
[  268.685357]  irq_exit+0x17f/0x1c0
[  268.688835]  smp_apic_timer_interrupt+0x1cb/0x760
[  268.693681]  ? smp_reschedule_interrupt+0x109/0x650
[  268.698696]  ? smp_call_function_single_interrupt+0x650/0x650
[  268.704597]  ? interrupt_entry+0xb5/0xc0
[  268.708663]  ? trace_hardirqs_off_caller+0xbb/0x310
[  268.713677]  ? trace_hardirqs_off_caller+0xbb/0x310
[  268.718690]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.723541]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.728563]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.733587]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.738450]  apic_timer_interrupt+0xf/0x20
[  268.742672]  </IRQ>
[  268.744908] RIP: 0010:dump_stack+0x358/0x39d
[  268.749328] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  268.768246] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  268.775953] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  268.783217] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  268.790501] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  268.797784] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  268.805052] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  268.812335]  ? dump_stack+0x34f/0x39d
[  268.816163]  ? dump_stack_print_info.cold.1+0x20/0x20
[  268.821356]  ? mark_held_locks+0x130/0x130
[  268.825589]  ? mark_held_locks+0x130/0x130
[  268.829832]  dump_header+0x27b/0xf72
[  268.833577]  ? pagefault_out_of_memory+0x197/0x197
[  268.838553]  ? __lock_acquire+0x62f/0x4c20
[  268.842802]  ? percpu_ref_get_many+0x240/0x240
[  268.847386]  ? print_usage_bug+0xc0/0xc0
[  268.851456]  ? zap_class+0x640/0x640
[  268.855175]  ? print_usage_bug+0xc0/0xc0
[  268.859239]  ? print_usage_bug+0xc0/0xc0
[  268.863335]  ? zap_class+0x640/0x640
[  268.867055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.872595]  ? find_held_lock+0x36/0x1c0
[  268.876683]  ? mark_held_locks+0xc7/0x130
[  268.880836]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  268.885943]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  268.891048]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  268.895632]  ? trace_hardirqs_on+0xbd/0x310
[  268.899959]  ? kasan_check_read+0x11/0x20
[  268.904105]  ? ___ratelimit+0x3b4/0x672
[  268.908079]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.913184]  ? trace_hardirqs_on+0x310/0x310
[  268.917584]  ? lock_downgrade+0x900/0x900
[  268.921747]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  268.926851]  ? ___ratelimit+0x3b9/0x672
[  268.930821]  ? idr_get_free+0xf70/0xf70
[  268.934811]  ? find_held_lock+0x36/0x1c0
[  268.938935]  oom_kill_process.cold.27+0x10/0x903
[  268.943683]  ? zap_class+0x640/0x640
[  268.947449]  ? check_preemption_disabled+0x48/0x280
[  268.952453]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.957368]  ? kasan_check_read+0x11/0x20
[  268.961502]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.966771]  ? oom_evaluate_task+0x540/0x540
[  268.971171]  ? find_held_lock+0x36/0x1c0
[  268.975223]  ? out_of_memory+0x974/0x1430
[  268.979357]  ? lock_downgrade+0x900/0x900
[  268.983491]  ? check_preemption_disabled+0x48/0x280
[  268.988511]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.993425]  ? kasan_check_read+0x11/0x20
[  268.997590]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.002863]  ? rcu_softirq_qs+0x20/0x20
[  269.006858]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.012385]  ? oom_evaluate_task+0x302/0x540
[  269.016789]  out_of_memory+0xa84/0x1430
[  269.020758]  ? oom_killer_disable+0x3a0/0x3a0
[  269.025247]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  269.030203]  ? __ww_mutex_check_waiters+0x160/0x160
[  269.035226]  __alloc_pages_slowpath+0x2354/0x2e10
[  269.040085]  ? warn_alloc+0x120/0x120
[  269.043875]  ? mark_held_locks+0x130/0x130
[  269.048105]  ? find_get_entry+0xaae/0x1120
[  269.052336]  ? filemap_map_pages+0x1a20/0x1a20
[  269.056915]  ? zap_class+0x640/0x640
[  269.060653]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.066183]  ? check_preemption_disabled+0x48/0x280
[  269.071203]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.076738]  ? should_fail+0x22d/0xd01
[  269.080622]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.085719]  ? zap_class+0x640/0x640
[  269.089449]  ? __lock_is_held+0xb5/0x140
[  269.093522]  ? mark_held_locks+0x130/0x130
[  269.097785]  ? lock_release+0xa00/0xa00
[  269.101749]  ? perf_trace_sched_process_exec+0x860/0x860
[  269.107201]  ? xa_load+0x2ba/0x460
[  269.110736]  ? lock_downgrade+0x900/0x900
[  269.114895]  ? __might_sleep+0x95/0x190
[  269.118938]  __alloc_pages_nodemask+0xa80/0xde0
[  269.123606]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  269.128617]  ? __page_cache_alloc+0x191/0x5c0
[  269.133107]  ? xa_load+0x2e1/0x460
[  269.136661]  ? xa_clear_mark+0x40/0x40
[  269.140563]  ? zap_class+0x640/0x640
[  269.144297]  ? zap_class+0x640/0x640
[  269.148005]  ? zap_class+0x640/0x640
[  269.151710]  ? __do_page_cache_readahead+0x663/0x810
[  269.156838]  ? find_held_lock+0x36/0x1c0
[  269.160919]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  269.166459]  alloc_pages_current+0x173/0x350
[  269.170870]  __page_cache_alloc+0x38c/0x5c0
[  269.175180]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  269.180102]  ? kasan_check_read+0x11/0x20
[  269.184241]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.189529]  ? generic_perform_write+0x6a0/0x6a0
[  269.194323]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.199867]  ? check_preemption_disabled+0x48/0x280
[  269.204930]  filemap_fault+0x1595/0x25f0
[  269.209013]  ? __lock_page_or_retry+0xa00/0xa00
[  269.213697]  ? mark_held_locks+0x130/0x130
[  269.217943]  ? filemap_map_pages+0xd6b/0x1a20
[  269.222443]  ? lock_downgrade+0x900/0x900
[  269.226590]  ? check_preemption_disabled+0x48/0x280
[  269.231600]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  269.236519]  ? kasan_check_read+0x11/0x20
[  269.240691]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.245960]  ? rcu_softirq_qs+0x20/0x20
[  269.249962]  ? filemap_map_pages+0xd92/0x1a20
[  269.254513]  ? print_usage_bug+0xc0/0xc0
[  269.258633]  ? find_get_entries_tag+0x1400/0x1400
[  269.263482]  ? __kasan_slab_free+0x102/0x150
[  269.267882]  ? kasan_slab_free+0xe/0x10
[  269.271853]  ? kmem_cache_free+0x83/0x290
[  269.275996]  ? __sigqueue_free.part.29+0x74/0x90
[  269.280760]  ? lock_acquire+0x1ed/0x520
[  269.284733]  ? ext4_filemap_fault+0x7a/0xad
[  269.289074]  ? lock_release+0xa00/0xa00
[  269.293041]  ? perf_trace_sched_process_exec+0x860/0x860
[  269.298504]  ? print_usage_bug+0xc0/0xc0
[  269.302592]  ? print_usage_bug+0xc0/0xc0
[  269.306663]  ? down_read+0x8d/0x120
[  269.310298]  ? ext4_filemap_fault+0x7a/0xad
[  269.314622]  ? __down_interruptible+0x700/0x700
[  269.319296]  ext4_filemap_fault+0x82/0xad
[  269.323454]  __do_fault+0x100/0x6b0
[  269.327079]  ? pmd_devmap_trans_unstable+0x220/0x220
[  269.332179]  ? mark_held_locks+0x130/0x130
[  269.336420]  ? mark_held_locks+0x130/0x130
[  269.340683]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  269.346215]  ? rcu_pm_notify+0xc0/0xc0
[  269.350104]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.355636]  __handle_mm_fault+0x3ea0/0x5be0
[  269.360062]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  269.364897]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.369384]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  269.373956]  ? trace_hardirqs_on+0xbd/0x310
[  269.378278]  ? kasan_check_read+0x11/0x20
[  269.382415]  ? __set_current_blocked+0xdf/0x120
[  269.387090]  ? trace_hardirqs_off_caller+0x310/0x310
[  269.392239]  ? zap_class+0x640/0x640
[  269.395942]  ? zap_class+0x640/0x640
[  269.399652]  ? find_held_lock+0x36/0x1c0
[  269.403713]  ? handle_mm_fault+0x42a/0xc70
[  269.407936]  ? lock_downgrade+0x900/0x900
[  269.412072]  ? check_preemption_disabled+0x48/0x280
[  269.417110]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  269.422058]  ? kasan_check_read+0x11/0x20
[  269.426225]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.431499]  ? rcu_softirq_qs+0x20/0x20
[  269.435463]  ? trace_hardirqs_off_caller+0x310/0x310
[  269.440557]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.446105]  ? check_preemption_disabled+0x48/0x280
[  269.451145]  handle_mm_fault+0x54f/0xc70
[  269.455215]  ? __handle_mm_fault+0x5be0/0x5be0
[  269.459794]  ? find_vma+0x34/0x190
[  269.463392]  __do_page_fault+0x5e8/0xe60
[  269.467456]  ? exit_to_usermode_loop+0x1f4/0x380
[  269.472235]  do_page_fault+0xf2/0x7e0
[  269.476042]  ? vmalloc_sync_all+0x30/0x30
[  269.480210]  ? error_entry+0x70/0xd0
[  269.483940]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.488965]  ? trace_hardirqs_on_caller+0xc0/0x310
[  269.493891]  ? syscall_return_slowpath+0x5e0/0x5e0
[  269.498883]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.503739]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.508767]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  269.514216]  ? prepare_exit_to_usermode+0x291/0x3b0
[  269.519226]  ? page_fault+0x8/0x30
[  269.522769]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.527614]  ? page_fault+0x8/0x30
[  269.531154]  page_fault+0x1e/0x30
[  269.534601] RIP: 0033:0x45db60
[  269.537797] Code: Bad RIP value.
[  269.541156] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  269.546512] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  269.553773] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  269.561033] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  269.568306] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  269.575567] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  269.582870] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  269.582874] warn_alloc_show_mem: 1 callbacks suppressed
[  269.582881] Mem-Info:
[  269.590150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  269.595546] active_anon:54051 inactive_anon:192 isolated_anon:0
[  269.595546]  active_file:9 inactive_file:20 isolated_file:0
[  269.595546]  unevictable:0 dirty:0 writeback:0 unstable:0
[  269.595546]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  269.595546]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  269.595546]  free:13735 free_pcp:540 free_cma:0
[  269.597920] Call Trace:
[  269.607332] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  269.640089]  <IRQ>
[  269.642657] 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
[  269.670059]  dump_stack+0x244/0x39d
[  269.672183] lowmem_reserve[]: 0 2818 6321 6321
[  269.698314]  ? dump_stack_print_info.cold.1+0x20/0x20
[  269.701915] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  269.706492]  warn_alloc.cold.116+0xb7/0x1bd
[  269.711660] lowmem_reserve[]: 0 0 3503 3503
[  269.739406]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  269.743809] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  269.748125]  ? lock_downgrade+0x900/0x900
[  269.752937] lowmem_reserve[]: 0 0 0 0
[  269.781993]  ? trace_hardirqs_off+0xb8/0x310
[  269.786115] 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
[  269.789919]  ? trace_hardirqs_off+0xb8/0x310
[  269.794312] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  269.807875]  __alloc_pages_slowpath+0x26e8/0x2e10
[  269.812248] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  269.827524]  ? warn_alloc+0x120/0x120
[  269.832338] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  269.846453]  ? print_usage_bug+0xc0/0xc0
[  269.850230] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  269.859048]  ? warn_alloc+0x120/0x120
[  269.863097] 273 total pagecache pages
[  269.871662]  ? warn_alloc+0x120/0x120
[  269.875895] 0 pages in swap cache
[  269.879683]  ? print_usage_bug+0xc0/0xc0
[  269.883460] Swap cache stats: add 0, delete 0, find 0/0
[  269.886911]  ? kvm_clock_read+0x18/0x30
[  269.890974] Free swap  = 0kB
[  269.896356]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  269.900301] Total swap = 0kB
[  269.903307]  ? print_usage_bug+0xc0/0xc0
[  269.908325] 1965979 pages RAM
[  269.911333]  ? __lock_acquire+0x62f/0x4c20
[  269.915368] 0 pages HighMem/MovableOnly
[  269.918477]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.922695] 342853 pages reserved
[  269.926676]  ? should_fail+0x22d/0xd01
[  269.932195] 0 pages cma reserved
[  269.935640]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.939554] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  269.942859]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.942873]  ? __lock_acquire+0x62f/0x4c20
[  269.942888]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.948192] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  269.954621]  ? __lock_acquire+0x62f/0x4c20
[  269.959698] syz-fuzzer cpuset=/ mems_allowed=0
[  269.963927]  ? should_fail+0x22d/0xd01
[  269.991887]  ? rcu_irq_exit+0x1a2/0x390
[  269.995871]  ? mark_held_locks+0x130/0x130
[  270.000118]  ? mark_held_locks+0x130/0x130
[  270.004372]  ? mark_held_locks+0xc7/0x130
[  270.008509]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  270.013518]  ? zap_class+0x640/0x640
[  270.017234]  ? print_usage_bug+0xc0/0xc0
[  270.021291]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.026823]  ? check_preemption_disabled+0x48/0x280
[  270.031856]  ? __lock_is_held+0xb5/0x140
[  270.035920]  __alloc_pages_nodemask+0xa80/0xde0
[  270.040580]  ? zap_class+0x640/0x640
[  270.044290]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  270.049324]  ? find_held_lock+0x36/0x1c0
[  270.053451]  ? ____cache_alloc_node+0x1c7/0x1e0
[  270.058151]  ? lock_downgrade+0x900/0x900
[  270.062298]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.067833]  cache_grow_begin+0xa5/0x8c0
[  270.071894]  ? do_raw_spin_unlock+0xa7/0x330
[  270.076350]  fallback_alloc+0x204/0x2e0
[  270.080329]  ____cache_alloc_node+0x1c7/0x1e0
[  270.084826]  kmem_cache_alloc_node+0xe3/0x730
[  270.089322]  ? ipv6_get_ifaddr+0x42e/0x620
[  270.093573]  __alloc_skb+0x119/0x770
[  270.097279]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.102571]  ? netdev_alloc_frag+0x1f0/0x1f0
[  270.107011]  ? lock_downgrade+0x900/0x900
[  270.111181]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.116717]  ? refcount_sub_and_test_checked+0x203/0x310
[  270.122172]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  270.127621]  ? addrconf_rs_timer+0x690/0x690
[  270.132037]  ndisc_alloc_skb+0x144/0x340
[  270.136102]  ndisc_send_rs+0x331/0x6e0
[  270.139993]  addrconf_rs_timer+0x314/0x690
[  270.144234]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.148542]  call_timer_fn+0x272/0x920
[  270.152472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.156719]  ? process_timeout+0x40/0x40
[  270.160789]  ? __run_timers+0x7da/0xc70
[  270.164760]  ? _raw_spin_unlock_irq+0x27/0x80
[  270.169250]  ? _raw_spin_unlock_irq+0x27/0x80
[  270.173802]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.178033]  ? lockdep_hardirqs_on+0x296/0x5b0
[  270.182612]  ? trace_hardirqs_on+0xbd/0x310
[  270.186933]  ? kasan_check_read+0x11/0x20
[  270.191091]  ? __run_timers+0x7da/0xc70
[  270.195063]  ? trace_hardirqs_off_caller+0x310/0x310
[  270.200170]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.204420]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.208675]  __run_timers+0x7e5/0xc70
[  270.212477]  ? timer_fixup_init+0x70/0x70
[  270.216622]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  270.221649]  ? zap_class+0x640/0x640
[  270.225363]  ? enqueue_hrtimer+0x1a5/0x560
[  270.229596]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  270.234791]  ? find_held_lock+0x36/0x1c0
[  270.238861]  ? zap_class+0x640/0x640
[  270.242572]  ? pvclock_read_flags+0x160/0x160
[  270.247067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.252597]  ? check_preemption_disabled+0x48/0x280
[  270.257631]  ? __lock_is_held+0xb5/0x140
[  270.261691]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.267241]  ? check_preemption_disabled+0x48/0x280
[  270.272270]  run_timer_softirq+0x52/0xb0
[  270.276362]  ? rcu_read_lock_sched_held+0x14f/0x180
[  270.281387]  __do_softirq+0x308/0xb7e
[  270.285183]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  270.289719]  ? lock_downgrade+0x900/0x900
[  270.293872]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  270.298974]  ? pvclock_read_flags+0x160/0x160
[  270.303464]  ? lapic_next_event+0x5a/0x90
[  270.307623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.313172]  ? kvm_clock_read+0x18/0x30
[  270.317140]  ? kvm_sched_clock_read+0x9/0x20
[  270.321550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.327081]  ? check_preemption_disabled+0x48/0x280
[  270.332116]  irq_exit+0x17f/0x1c0
[  270.335566]  smp_apic_timer_interrupt+0x1cb/0x760
[  270.340400]  ? smp_reschedule_interrupt+0x109/0x650
[  270.345406]  ? smp_call_function_single_interrupt+0x650/0x650
[  270.351279]  ? interrupt_entry+0xb5/0xc0
[  270.355377]  ? trace_hardirqs_off_caller+0xbb/0x310
[  270.360385]  ? trace_hardirqs_off_caller+0xbb/0x310
[  270.365392]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.370230]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.375256]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.380269]  ? task_prio+0x50/0x50
[  270.383806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.389343]  ? check_preemption_disabled+0x48/0x280
[  270.394360]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.399202]  apic_timer_interrupt+0xf/0x20
[  270.403426]  </IRQ>
[  270.405655] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  270.410576] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  270.429504] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  270.437208] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  270.444500] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  270.451765] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  270.459027] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  270.466288] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  270.473588]  skb_clone+0x1bb/0x500
[  270.477126]  ? finish_task_switch+0x2f4/0x910
[  270.481625]  ? skb_split+0x11e0/0x11e0
[  270.485509]  ? preempt_notifier_register+0x200/0x200
[  270.490608]  ? __switch_to_asm+0x34/0x70
[  270.494666]  ? __switch_to_asm+0x34/0x70
[  270.498739]  ? __switch_to_asm+0x40/0x70
[  270.502794]  ? __switch_to_asm+0x34/0x70
[  270.506853]  ? __switch_to_asm+0x40/0x70
[  270.510931]  ? __switch_to_asm+0x34/0x70
[  270.515005]  ? __switch_to_asm+0x40/0x70
[  270.519056]  ? __switch_to_asm+0x34/0x70
[  270.523106]  ? __switch_to_asm+0x34/0x70
[  270.527162]  ? __switch_to_asm+0x40/0x70
[  270.531229]  ? __switch_to_asm+0x34/0x70
[  270.535292]  bpf_clone_redirect+0xb9/0x490
[  270.539526]  ? __schedule+0x8d7/0x21d0
[  270.543415]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  270.548449]  ? __sched_text_start+0x8/0x8
[  270.552594]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  270.557379]  ? find_held_lock+0x36/0x1c0
[  270.561438]  ? lock_acquire+0x1ed/0x520
[  270.565444]  ? bpf_test_run+0x3cb/0x780
[  270.569410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.574987]  ? check_preemption_disabled+0x48/0x280
[  270.580016]  ? kasan_check_read+0x11/0x20
[  270.584161]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.589442]  ? rcu_softirq_qs+0x20/0x20
[  270.593462]  ? preempt_schedule+0x4d/0x60
[  270.597639]  ? ___preempt_schedule+0x16/0x18
[  270.602052]  ? bpf_test_run+0x25d/0x780
[  270.606036]  ? netlink_diag_dump+0x2a0/0x2a0
[  270.610446]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.615981]  ? bpf_test_init.isra.10+0x70/0x100
[  270.620697]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  270.625459]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  270.630291]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  270.635831]  ? fput+0x130/0x1a0
[  270.639141]  ? __bpf_prog_get+0x9b/0x290
[  270.643234]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  270.648077]  ? bpf_prog_test_run+0x130/0x1a0
[  270.652478]  ? __x64_sys_bpf+0x3d8/0x520
[  270.656563]  ? bpf_prog_get+0x20/0x20
[  270.660370]  ? do_syscall_64+0x1b9/0x820
[  270.664473]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  270.669860]  ? syscall_return_slowpath+0x5e0/0x5e0
[  270.674798]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.679821]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  270.684837]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  270.691535]  ? __switch_to_asm+0x40/0x70
[  270.695619]  ? __switch_to_asm+0x34/0x70
[  270.699683]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.704528]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  270.709936] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  270.710021] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  270.716943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  270.716948] Call Trace:
[  270.716953]  <IRQ>
[  270.716984]  dump_stack+0x244/0x39d
[  270.717003]  ? dump_stack_print_info.cold.1+0x20/0x20
[  270.723574] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  270.732860]  warn_alloc.cold.116+0xb7/0x1bd
[  270.735411] syz-executor3 cpuset=syz3 mems_allowed=0
[  270.737552]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  270.771943]  ? lock_downgrade+0x900/0x900
[  270.776093]  ? trace_hardirqs_off+0xb8/0x310
[  270.780514]  ? trace_hardirqs_off+0xb8/0x310
[  270.784925]  __alloc_pages_slowpath+0x26e8/0x2e10
[  270.789816]  ? warn_alloc+0x120/0x120
[  270.793622]  ? print_usage_bug+0xc0/0xc0
[  270.797682]  ? warn_alloc+0x120/0x120
[  270.801503]  ? warn_alloc+0x120/0x120
[  270.805339]  ? print_usage_bug+0xc0/0xc0
[  270.809429]  ? print_usage_bug+0xc0/0xc0
[  270.813494]  ? __lock_acquire+0x62f/0x4c20
[  270.817733]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.823268]  ? should_fail+0x22d/0xd01
[  270.827158]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.832282]  ? __lock_acquire+0x62f/0x4c20
[  270.836537]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.841639]  ? __lock_acquire+0x62f/0x4c20
[  270.845878]  ? should_fail+0x22d/0xd01
[  270.849763]  ? find_held_lock+0x36/0x1c0
[  270.853830]  ? mark_held_locks+0x130/0x130
[  270.858076]  ? mark_held_locks+0x130/0x130
[  270.862307]  ? zap_class+0x640/0x640
[  270.866014]  ? zap_class+0x640/0x640
[  270.869736]  ? print_usage_bug+0xc0/0xc0
[  270.873803]  ? do_raw_spin_unlock+0xa7/0x330
[  270.878207]  ? zap_class+0x640/0x640
[  270.881928]  ? print_usage_bug+0xc0/0xc0
[  270.885998]  ? wq_watchdog_touch+0x9c/0xfe
[  270.890226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.895752]  ? check_preemption_disabled+0x48/0x280
[  270.900770]  ? __lock_is_held+0xb5/0x140
[  270.904829]  __alloc_pages_nodemask+0xa80/0xde0
[  270.909506]  ? zap_class+0x640/0x640
[  270.913213]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  270.918228]  ? find_held_lock+0x36/0x1c0
[  270.922287]  ? ____cache_alloc_node+0x1c7/0x1e0
[  270.926969]  ? lock_downgrade+0x900/0x900
[  270.931129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.936665]  cache_grow_begin+0xa5/0x8c0
[  270.940717]  ? do_raw_spin_unlock+0xa7/0x330
[  270.945133]  fallback_alloc+0x204/0x2e0
[  270.949100]  ____cache_alloc_node+0x1c7/0x1e0
[  270.953613]  kmem_cache_alloc_node+0xe3/0x730
[  270.958097]  ? ipv6_get_ifaddr+0x42e/0x620
[  270.962330]  __alloc_skb+0x119/0x770
[  270.966029]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.971299]  ? netdev_alloc_frag+0x1f0/0x1f0
[  270.975695]  ? lock_downgrade+0x900/0x900
[  270.979856]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.985386]  ? refcount_sub_and_test_checked+0x203/0x310
[  270.990826]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  270.996271]  ? addrconf_rs_timer+0x690/0x690
[  271.000711]  ndisc_alloc_skb+0x144/0x340
[  271.004765]  ndisc_send_rs+0x331/0x6e0
[  271.008700]  addrconf_rs_timer+0x314/0x690
[  271.012961]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.017197]  call_timer_fn+0x272/0x920
[  271.021079]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.025306]  ? process_timeout+0x40/0x40
[  271.029367]  ? mark_held_locks+0xc7/0x130
[  271.033507]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.038004]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.042508]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.046735]  ? lockdep_hardirqs_on+0x296/0x5b0
[  271.051341]  ? trace_hardirqs_on+0xbd/0x310
[  271.055672]  ? kasan_check_read+0x11/0x20
[  271.059814]  ? __run_timers+0x7da/0xc70
[  271.063793]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.068921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.073154]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.077381]  __run_timers+0x7e5/0xc70
[  271.081188]  ? timer_fixup_init+0x70/0x70
[  271.085333]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  271.090378]  ? zap_class+0x640/0x640
[  271.094093]  ? print_usage_bug+0xc0/0xc0
[  271.098150]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  271.103385]  ? find_held_lock+0x36/0x1c0
[  271.107447]  ? zap_class+0x640/0x640
[  271.111159]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.116691]  ? check_preemption_disabled+0x48/0x280
[  271.121714]  ? __lock_is_held+0xb5/0x140
[  271.125770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.131304]  ? check_preemption_disabled+0x48/0x280
[  271.136353]  run_timer_softirq+0x52/0xb0
[  271.140489]  ? rcu_read_lock_sched_held+0x14f/0x180
[  271.145521]  __do_softirq+0x308/0xb7e
[  271.149362]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  271.153885]  ? lock_downgrade+0x900/0x900
[  271.158031]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  271.163141]  ? pvclock_read_flags+0x160/0x160
[  271.167634]  ? lapic_next_event+0x5a/0x90
[  271.171790]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.177331]  ? kvm_clock_read+0x18/0x30
[  271.181305]  ? kvm_sched_clock_read+0x9/0x20
[  271.185716]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.191250]  ? check_preemption_disabled+0x48/0x280
[  271.196286]  irq_exit+0x17f/0x1c0
[  271.199737]  smp_apic_timer_interrupt+0x1cb/0x760
[  271.204573]  ? smp_reschedule_interrupt+0x109/0x650
[  271.209583]  ? smp_call_function_single_interrupt+0x650/0x650
[  271.215478]  ? interrupt_entry+0xb5/0xc0
[  271.219535]  ? trace_hardirqs_off_caller+0xbb/0x310
[  271.224577]  ? trace_hardirqs_off_caller+0xbb/0x310
[  271.229603]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.234458]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.239471]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.244494]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.249340]  apic_timer_interrupt+0xf/0x20
[  271.253578]  </IRQ>
[  271.255810] RIP: 0010:dump_stack+0x358/0x39d
[  271.260210] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  271.279114] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  271.286825] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  271.294088] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  271.301347] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  271.308631] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  271.315912] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  271.323230]  ? dump_stack+0x34f/0x39d
[  271.327114]  ? dump_stack_print_info.cold.1+0x20/0x20
[  271.332299]  ? mark_held_locks+0x130/0x130
[  271.336546]  ? mark_held_locks+0x130/0x130
[  271.340792]  dump_header+0x27b/0xf72
[  271.344507]  ? pagefault_out_of_memory+0x197/0x197
[  271.349447]  ? __lock_acquire+0x62f/0x4c20
[  271.353683]  ? percpu_ref_get_many+0x240/0x240
[  271.358260]  ? print_usage_bug+0xc0/0xc0
[  271.362315]  ? zap_class+0x640/0x640
[  271.366029]  ? print_usage_bug+0xc0/0xc0
[  271.370079]  ? print_usage_bug+0xc0/0xc0
[  271.374133]  ? zap_class+0x640/0x640
[  271.377866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.383418]  ? find_held_lock+0x36/0x1c0
[  271.387479]  ? mark_held_locks+0xc7/0x130
[  271.391635]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  271.396731]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  271.401840]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  271.406455]  ? trace_hardirqs_on+0xbd/0x310
[  271.410766]  ? kasan_check_read+0x11/0x20
[  271.414959]  ? ___ratelimit+0x3b4/0x672
[  271.419021]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.424120]  ? trace_hardirqs_on+0x310/0x310
[  271.428542]  ? lock_downgrade+0x900/0x900
[  271.432720]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  271.437823]  ? ___ratelimit+0x3b9/0x672
[  271.441806]  ? idr_get_free+0xf70/0xf70
[  271.445783]  ? find_held_lock+0x36/0x1c0
[  271.449859]  oom_kill_process.cold.27+0x10/0x903
[  271.454614]  ? zap_class+0x640/0x640
[  271.458327]  ? check_preemption_disabled+0x48/0x280
[  271.463348]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.468273]  ? kasan_check_read+0x11/0x20
[  271.472447]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.477718]  ? oom_evaluate_task+0x540/0x540
[  271.482121]  ? find_held_lock+0x36/0x1c0
[  271.486184]  ? out_of_memory+0x974/0x1430
[  271.490326]  ? lock_downgrade+0x900/0x900
[  271.494469]  ? check_preemption_disabled+0x48/0x280
[  271.499485]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.504425]  ? kasan_check_read+0x11/0x20
[  271.508570]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.513840]  ? rcu_softirq_qs+0x20/0x20
[  271.517827]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.523369]  ? oom_evaluate_task+0x302/0x540
[  271.527785]  out_of_memory+0xa84/0x1430
[  271.531771]  ? oom_killer_disable+0x3a0/0x3a0
[  271.536267]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  271.541200]  ? __ww_mutex_check_waiters+0x160/0x160
[  271.546231]  __alloc_pages_slowpath+0x2354/0x2e10
[  271.551115]  ? warn_alloc+0x120/0x120
[  271.554914]  ? mark_held_locks+0x130/0x130
[  271.559154]  ? find_get_entry+0xaae/0x1120
[  271.563397]  ? filemap_map_pages+0x1a20/0x1a20
[  271.567986]  ? zap_class+0x640/0x640
[  271.571706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.577244]  ? check_preemption_disabled+0x48/0x280
[  271.582260]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.587798]  ? should_fail+0x22d/0xd01
[  271.591691]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  271.596793]  ? zap_class+0x640/0x640
[  271.600530]  ? __lock_is_held+0xb5/0x140
[  271.604600]  ? mark_held_locks+0x130/0x130
[  271.608836]  ? lock_release+0xa00/0xa00
[  271.612816]  ? perf_trace_sched_process_exec+0x860/0x860
[  271.618277]  ? xa_load+0x2ba/0x460
[  271.621819]  ? lock_downgrade+0x900/0x900
[  271.625982]  ? __might_sleep+0x95/0x190
[  271.629975]  __alloc_pages_nodemask+0xa80/0xde0
[  271.634654]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  271.639674]  ? __page_cache_alloc+0x191/0x5c0
[  271.644169]  ? xa_load+0x2e1/0x460
[  271.647711]  ? xa_clear_mark+0x40/0x40
[  271.651602]  ? zap_class+0x640/0x640
[  271.655321]  ? zap_class+0x640/0x640
[  271.659035]  ? zap_class+0x640/0x640
[  271.662749]  ? __do_page_cache_readahead+0x663/0x810
[  271.667864]  ? find_held_lock+0x36/0x1c0
[  271.671930]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  271.677509]  alloc_pages_current+0x173/0x350
[  271.681920]  __page_cache_alloc+0x38c/0x5c0
[  271.686253]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.691183]  ? kasan_check_read+0x11/0x20
[  271.695347]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.700641]  ? generic_perform_write+0x6a0/0x6a0
[  271.705404]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.710947]  ? check_preemption_disabled+0x48/0x280
[  271.715972]  filemap_fault+0x1595/0x25f0
[  271.720043]  ? __lock_page_or_retry+0xa00/0xa00
[  271.724708]  ? mark_held_locks+0x130/0x130
[  271.728946]  ? filemap_map_pages+0xd6b/0x1a20
[  271.733459]  ? lock_downgrade+0x900/0x900
[  271.737604]  ? check_preemption_disabled+0x48/0x280
[  271.742839]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.747775]  ? kasan_check_read+0x11/0x20
[  271.751918]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.757189]  ? rcu_softirq_qs+0x20/0x20
[  271.761170]  ? filemap_map_pages+0xd92/0x1a20
[  271.765666]  ? print_usage_bug+0xc0/0xc0
[  271.769757]  ? find_get_entries_tag+0x1400/0x1400
[  271.774594]  ? __kasan_slab_free+0x102/0x150
[  271.779008]  ? kasan_slab_free+0xe/0x10
[  271.783078]  ? kmem_cache_free+0x83/0x290
[  271.787234]  ? __sigqueue_free.part.29+0x74/0x90
[  271.792012]  ? lock_acquire+0x1ed/0x520
[  271.795980]  ? ext4_filemap_fault+0x7a/0xad
[  271.800316]  ? lock_release+0xa00/0xa00
[  271.804280]  ? perf_trace_sched_process_exec+0x860/0x860
[  271.809720]  ? print_usage_bug+0xc0/0xc0
[  271.813774]  ? print_usage_bug+0xc0/0xc0
[  271.817838]  ? down_read+0x8d/0x120
[  271.821463]  ? ext4_filemap_fault+0x7a/0xad
[  271.825792]  ? __down_interruptible+0x700/0x700
[  271.830459]  ext4_filemap_fault+0x82/0xad
[  271.834604]  __do_fault+0x100/0x6b0
[  271.838229]  ? pmd_devmap_trans_unstable+0x220/0x220
[  271.843330]  ? mark_held_locks+0x130/0x130
[  271.847575]  ? mark_held_locks+0x130/0x130
[  271.851825]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  271.857414]  ? rcu_pm_notify+0xc0/0xc0
[  271.861320]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.866864]  __handle_mm_fault+0x3ea0/0x5be0
[  271.871292]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  271.876656]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.881149]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  271.885732]  ? trace_hardirqs_on+0xbd/0x310
[  271.890066]  ? kasan_check_read+0x11/0x20
[  271.894211]  ? __set_current_blocked+0xdf/0x120
[  271.898884]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.903996]  ? zap_class+0x640/0x640
[  271.907723]  ? zap_class+0x640/0x640
[  271.911437]  ? find_held_lock+0x36/0x1c0
[  271.915509]  ? handle_mm_fault+0x42a/0xc70
[  271.919753]  ? lock_downgrade+0x900/0x900
[  271.923904]  ? check_preemption_disabled+0x48/0x280
[  271.928976]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.933917]  ? kasan_check_read+0x11/0x20
[  271.938073]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.943376]  ? rcu_softirq_qs+0x20/0x20
[  271.947350]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.952470]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.958006]  ? check_preemption_disabled+0x48/0x280
[  271.963029]  handle_mm_fault+0x54f/0xc70
[  271.967091]  ? __handle_mm_fault+0x5be0/0x5be0
[  271.971680]  ? find_vma+0x34/0x190
[  271.975221]  __do_page_fault+0x5e8/0xe60
[  271.979278]  ? exit_to_usermode_loop+0x1f4/0x380
[  271.984036]  do_page_fault+0xf2/0x7e0
[  271.987839]  ? vmalloc_sync_all+0x30/0x30
[  271.991994]  ? error_entry+0x70/0xd0
[  271.995708]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.000721]  ? trace_hardirqs_on_caller+0xc0/0x310
[  272.005657]  ? syscall_return_slowpath+0x5e0/0x5e0
[  272.010586]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.015429]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.020446]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  272.025901]  ? prepare_exit_to_usermode+0x291/0x3b0
[  272.030917]  ? page_fault+0x8/0x30
[  272.034483]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.039327]  ? page_fault+0x8/0x30
[  272.042871]  page_fault+0x1e/0x30
[  272.046343] RIP: 0033:0x45db60
[  272.049546] Code: Bad RIP value.
[  272.052930] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  272.058290] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  272.065567] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  272.072827] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  272.080097] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  272.087374] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  272.094671] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  272.094677] warn_alloc_show_mem: 1 callbacks suppressed
[  272.094684] Mem-Info:
[  272.101949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  272.107313] active_anon:54051 inactive_anon:192 isolated_anon:0
[  272.107313]  active_file:9 inactive_file:20 isolated_file:0
[  272.107313]  unevictable:0 dirty:0 writeback:0 unstable:0
[  272.107313]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  272.107313]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  272.107313]  free:13735 free_pcp:540 free_cma:0
[  272.109681] Call Trace:
[  272.119064] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  272.151818]  <IRQ>
[  272.154384] 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
[  272.181788]  dump_stack+0x244/0x39d
[  272.183908] lowmem_reserve[]: 0 2818 6321 6321
[  272.210009]  ? dump_stack_print_info.cold.1+0x20/0x20
[  272.213606] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  272.218186]  warn_alloc.cold.116+0xb7/0x1bd
[  272.223340] lowmem_reserve[]: 0 0 3503 3503
[  272.251090]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  272.255396] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  272.259710]  ? lock_downgrade+0x900/0x900
[  272.264522] lowmem_reserve[]: 0 0 0 0
[  272.293602]  ? trace_hardirqs_off+0xb8/0x310
[  272.297745] 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
[  272.301543]  ? trace_hardirqs_off+0xb8/0x310
[  272.305934] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  272.319446]  __alloc_pages_slowpath+0x26e8/0x2e10
[  272.323821] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  272.339123]  ? warn_alloc+0x120/0x120
[  272.343922] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  272.358033]  ? print_usage_bug+0xc0/0xc0
[  272.361821] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  272.370649]  ? warn_alloc+0x120/0x120
[  272.374686] 273 total pagecache pages
[  272.383243]  ? warn_alloc+0x120/0x120
[  272.387081] 0 pages in swap cache
[  272.390912]  ? print_usage_bug+0xc0/0xc0
[  272.394686] Swap cache stats: add 0, delete 0, find 0/0
[  272.398121]  ? kvm_clock_read+0x18/0x30
[  272.402147] Free swap  = 0kB
[  272.402155] Total swap = 0kB
[  272.407506]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  272.411450] 1965979 pages RAM
[  272.414458]  ? print_usage_bug+0xc0/0xc0
[  272.417469] 0 pages HighMem/MovableOnly
[  272.422472]  ? __lock_acquire+0x62f/0x4c20
[  272.425550] 342853 pages reserved
[  272.429598]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.433541] 0 pages cma reserved
[  272.437763]  ? should_fail+0x22d/0xd01
[  272.441261] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  272.446740]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.446756]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.446771]  ? __lock_acquire+0x62f/0x4c20
[  272.450280] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  272.454107]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.460588] syz-fuzzer cpuset=/ mems_allowed=0
[  272.465860]  ? __lock_acquire+0x62f/0x4c20
[  272.499284]  ? should_fail+0x22d/0xd01
[  272.503169]  ? rcu_irq_exit+0x1a2/0x390
[  272.507151]  ? mark_held_locks+0x130/0x130
[  272.511382]  ? mark_held_locks+0x130/0x130
[  272.515626]  ? mark_held_locks+0xc7/0x130
[  272.519782]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  272.524800]  ? zap_class+0x640/0x640
[  272.528510]  ? print_usage_bug+0xc0/0xc0
[  272.532610]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.538161]  ? check_preemption_disabled+0x48/0x280
[  272.543183]  ? __lock_is_held+0xb5/0x140
[  272.547276]  __alloc_pages_nodemask+0xa80/0xde0
[  272.551940]  ? zap_class+0x640/0x640
[  272.555720]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  272.560751]  ? find_held_lock+0x36/0x1c0
[  272.564810]  ? ____cache_alloc_node+0x1c7/0x1e0
[  272.569469]  ? lock_downgrade+0x900/0x900
[  272.573635]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.579233]  cache_grow_begin+0xa5/0x8c0
[  272.583307]  ? do_raw_spin_unlock+0xa7/0x330
[  272.587743]  fallback_alloc+0x204/0x2e0
[  272.591718]  ____cache_alloc_node+0x1c7/0x1e0
[  272.596215]  kmem_cache_alloc_node+0xe3/0x730
[  272.600706]  ? ipv6_get_ifaddr+0x42e/0x620
[  272.604945]  __alloc_skb+0x119/0x770
[  272.608650]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.613936]  ? netdev_alloc_frag+0x1f0/0x1f0
[  272.618388]  ? lock_downgrade+0x900/0x900
[  272.622576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.628106]  ? refcount_sub_and_test_checked+0x203/0x310
[  272.633569]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  272.639014]  ? addrconf_rs_timer+0x690/0x690
[  272.643427]  ndisc_alloc_skb+0x144/0x340
[  272.647488]  ndisc_send_rs+0x331/0x6e0
[  272.651384]  addrconf_rs_timer+0x314/0x690
[  272.655614]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.659872]  call_timer_fn+0x272/0x920
[  272.663787]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.668047]  ? process_timeout+0x40/0x40
[  272.672110]  ? __run_timers+0x7da/0xc70
[  272.676132]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.680644]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.685132]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.689379]  ? lockdep_hardirqs_on+0x296/0x5b0
[  272.693956]  ? trace_hardirqs_on+0xbd/0x310
[  272.698297]  ? kasan_check_read+0x11/0x20
[  272.702452]  ? __run_timers+0x7da/0xc70
[  272.706430]  ? trace_hardirqs_off_caller+0x310/0x310
[  272.711542]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.715791]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.720031]  __run_timers+0x7e5/0xc70
[  272.723856]  ? timer_fixup_init+0x70/0x70
[  272.728011]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  272.733024]  ? zap_class+0x640/0x640
[  272.736733]  ? enqueue_hrtimer+0x1a5/0x560
[  272.740958]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  272.746363]  ? find_held_lock+0x36/0x1c0
[  272.750447]  ? zap_class+0x640/0x640
[  272.754182]  ? pvclock_read_flags+0x160/0x160
[  272.758671]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.764202]  ? check_preemption_disabled+0x48/0x280
[  272.769254]  ? __lock_is_held+0xb5/0x140
[  272.773356]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.778922]  ? check_preemption_disabled+0x48/0x280
[  272.783952]  run_timer_softirq+0x52/0xb0
[  272.788008]  ? rcu_read_lock_sched_held+0x14f/0x180
[  272.793021]  __do_softirq+0x308/0xb7e
[  272.796817]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  272.801301]  ? lock_downgrade+0x900/0x900
[  272.805463]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  272.810596]  ? pvclock_read_flags+0x160/0x160
[  272.815114]  ? lapic_next_event+0x5a/0x90
[  272.819280]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.824846]  ? kvm_clock_read+0x18/0x30
[  272.828824]  ? kvm_sched_clock_read+0x9/0x20
[  272.833239]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.838770]  ? check_preemption_disabled+0x48/0x280
[  272.843790]  irq_exit+0x17f/0x1c0
[  272.847240]  smp_apic_timer_interrupt+0x1cb/0x760
[  272.852078]  ? smp_reschedule_interrupt+0x109/0x650
[  272.857090]  ? smp_call_function_single_interrupt+0x650/0x650
[  272.862968]  ? interrupt_entry+0xb5/0xc0
[  272.867032]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.872048]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.877059]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.881897]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.886905]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.891915]  ? task_prio+0x50/0x50
[  272.895451]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.901000]  ? check_preemption_disabled+0x48/0x280
[  272.906015]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.910865]  apic_timer_interrupt+0xf/0x20
[  272.915091]  </IRQ>
[  272.917321] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  272.922244] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  272.941157] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  272.948905] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  272.956170] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  272.963469] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  272.970744] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  272.978010] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  272.985295]  skb_clone+0x1bb/0x500
[  272.988841]  ? finish_task_switch+0x2f4/0x910
[  272.993353]  ? skb_split+0x11e0/0x11e0
[  272.997231]  ? preempt_notifier_register+0x200/0x200
[  273.002324]  ? __switch_to_asm+0x34/0x70
[  273.006391]  ? __switch_to_asm+0x34/0x70
[  273.010454]  ? __switch_to_asm+0x40/0x70
[  273.014511]  ? __switch_to_asm+0x34/0x70
[  273.018624]  ? __switch_to_asm+0x40/0x70
[  273.022679]  ? __switch_to_asm+0x34/0x70
[  273.026813]  ? __switch_to_asm+0x40/0x70
[  273.030866]  ? __switch_to_asm+0x34/0x70
[  273.034931]  ? __switch_to_asm+0x34/0x70
[  273.039026]  ? __switch_to_asm+0x40/0x70
[  273.043092]  ? __switch_to_asm+0x34/0x70
[  273.047154]  bpf_clone_redirect+0xb9/0x490
[  273.051403]  ? __schedule+0x8d7/0x21d0
[  273.055287]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  273.060293]  ? __sched_text_start+0x8/0x8
[  273.064431]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  273.069191]  ? find_held_lock+0x36/0x1c0
[  273.073271]  ? lock_acquire+0x1ed/0x520
[  273.077275]  ? bpf_test_run+0x3cb/0x780
[  273.081241]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.086791]  ? check_preemption_disabled+0x48/0x280
[  273.091811]  ? kasan_check_read+0x11/0x20
[  273.095960]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.101231]  ? rcu_softirq_qs+0x20/0x20
[  273.105342]  ? preempt_schedule+0x4d/0x60
[  273.109514]  ? ___preempt_schedule+0x16/0x18
[  273.113924]  ? bpf_test_run+0x25d/0x780
[  273.117906]  ? netlink_diag_dump+0x2a0/0x2a0
[  273.122323]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.127908]  ? bpf_test_init.isra.10+0x70/0x100
[  273.132631]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  273.137390]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  273.142227]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  273.147760]  ? fput+0x130/0x1a0
[  273.151032]  ? __bpf_prog_get+0x9b/0x290
[  273.155091]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  273.159923]  ? bpf_prog_test_run+0x130/0x1a0
[  273.164333]  ? __x64_sys_bpf+0x3d8/0x520
[  273.168401]  ? bpf_prog_get+0x20/0x20
[  273.172214]  ? do_syscall_64+0x1b9/0x820
[  273.176285]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  273.181690]  ? syscall_return_slowpath+0x5e0/0x5e0
[  273.186646]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.191664]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  273.196676]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  273.203348]  ? __switch_to_asm+0x40/0x70
[  273.207402]  ? __switch_to_asm+0x34/0x70
[  273.211478]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.216333]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  273.221704] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  273.221763] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  273.228707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  273.228711] Call Trace:
[  273.228716]  <IRQ>
[  273.228731]  dump_stack+0x244/0x39d
[  273.228747]  ? dump_stack_print_info.cold.1+0x20/0x20
[  273.235298] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  273.244570]  warn_alloc.cold.116+0xb7/0x1bd
[  273.247120] syz-executor3 cpuset=syz3 mems_allowed=0
[  273.249259]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  273.282751]  ? lock_downgrade+0x900/0x900
[  273.286941]  ? trace_hardirqs_off+0xb8/0x310
[  273.291347]  ? trace_hardirqs_off+0xb8/0x310
[  273.295755]  __alloc_pages_slowpath+0x26e8/0x2e10
[  273.300610]  ? warn_alloc+0x120/0x120
[  273.304406]  ? print_usage_bug+0xc0/0xc0
[  273.308492]  ? warn_alloc+0x120/0x120
[  273.312291]  ? warn_alloc+0x120/0x120
[  273.316096]  ? print_usage_bug+0xc0/0xc0
[  273.320155]  ? print_usage_bug+0xc0/0xc0
[  273.324211]  ? __lock_acquire+0x62f/0x4c20
[  273.328463]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.334084]  ? should_fail+0x22d/0xd01
[  273.337967]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.343074]  ? __lock_acquire+0x62f/0x4c20
[  273.347314]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.352405]  ? __lock_acquire+0x62f/0x4c20
[  273.356629]  ? should_fail+0x22d/0xd01
[  273.360536]  ? find_held_lock+0x36/0x1c0
[  273.364611]  ? mark_held_locks+0x130/0x130
[  273.368863]  ? mark_held_locks+0x130/0x130
[  273.373088]  ? zap_class+0x640/0x640
[  273.376803]  ? zap_class+0x640/0x640
[  273.380554]  ? print_usage_bug+0xc0/0xc0
[  273.384616]  ? do_raw_spin_unlock+0xa7/0x330
[  273.389014]  ? zap_class+0x640/0x640
[  273.392719]  ? print_usage_bug+0xc0/0xc0
[  273.396787]  ? wq_watchdog_touch+0x9c/0xfe
[  273.401033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.406577]  ? check_preemption_disabled+0x48/0x280
[  273.411591]  ? __lock_is_held+0xb5/0x140
[  273.415670]  __alloc_pages_nodemask+0xa80/0xde0
[  273.420357]  ? zap_class+0x640/0x640
[  273.424066]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  273.429084]  ? find_held_lock+0x36/0x1c0
[  273.433163]  ? ____cache_alloc_node+0x1c7/0x1e0
[  273.437831]  ? lock_downgrade+0x900/0x900
[  273.441985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.447522]  cache_grow_begin+0xa5/0x8c0
[  273.451575]  ? do_raw_spin_unlock+0xa7/0x330
[  273.455990]  fallback_alloc+0x204/0x2e0
[  273.459997]  ____cache_alloc_node+0x1c7/0x1e0
[  273.464492]  kmem_cache_alloc_node+0xe3/0x730
[  273.468980]  ? ipv6_get_ifaddr+0x42e/0x620
[  273.473214]  __alloc_skb+0x119/0x770
[  273.476921]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.482191]  ? netdev_alloc_frag+0x1f0/0x1f0
[  273.486596]  ? lock_downgrade+0x900/0x900
[  273.490742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.496288]  ? refcount_sub_and_test_checked+0x203/0x310
[  273.501750]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  273.507195]  ? addrconf_rs_timer+0x690/0x690
[  273.511619]  ndisc_alloc_skb+0x144/0x340
[  273.515694]  ndisc_send_rs+0x331/0x6e0
[  273.519581]  addrconf_rs_timer+0x314/0x690
[  273.523811]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.528095]  call_timer_fn+0x272/0x920
[  273.532006]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.536234]  ? process_timeout+0x40/0x40
[  273.540295]  ? mark_held_locks+0xc7/0x130
[  273.544470]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.548961]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.553475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.557700]  ? lockdep_hardirqs_on+0x296/0x5b0
[  273.562272]  ? trace_hardirqs_on+0xbd/0x310
[  273.566592]  ? kasan_check_read+0x11/0x20
[  273.570745]  ? __run_timers+0x7da/0xc70
[  273.574713]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.579809]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.584040]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.588265]  __run_timers+0x7e5/0xc70
[  273.592067]  ? timer_fixup_init+0x70/0x70
[  273.596213]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  273.601226]  ? zap_class+0x640/0x640
[  273.604940]  ? print_usage_bug+0xc0/0xc0
[  273.609013]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  273.614238]  ? find_held_lock+0x36/0x1c0
[  273.618301]  ? zap_class+0x640/0x640
[  273.622015]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.627548]  ? check_preemption_disabled+0x48/0x280
[  273.632566]  ? __lock_is_held+0xb5/0x140
[  273.636625]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.642162]  ? check_preemption_disabled+0x48/0x280
[  273.647181]  run_timer_softirq+0x52/0xb0
[  273.651242]  ? rcu_read_lock_sched_held+0x14f/0x180
[  273.656270]  __do_softirq+0x308/0xb7e
[  273.660086]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  273.664573]  ? lock_downgrade+0x900/0x900
[  273.668749]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  273.673874]  ? pvclock_read_flags+0x160/0x160
[  273.678398]  ? lapic_next_event+0x5a/0x90
[  273.682570]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.688109]  ? kvm_clock_read+0x18/0x30
[  273.692079]  ? kvm_sched_clock_read+0x9/0x20
[  273.696487]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.702026]  ? check_preemption_disabled+0x48/0x280
[  273.707047]  irq_exit+0x17f/0x1c0
[  273.710503]  smp_apic_timer_interrupt+0x1cb/0x760
[  273.715350]  ? smp_reschedule_interrupt+0x109/0x650
[  273.720367]  ? smp_call_function_single_interrupt+0x650/0x650
[  273.726250]  ? interrupt_entry+0xb5/0xc0
[  273.730344]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.735372]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.740460]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.745303]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.750317]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.755345]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.760198]  apic_timer_interrupt+0xf/0x20
[  273.764428]  </IRQ>
[  273.766668] RIP: 0010:dump_stack+0x358/0x39d
[  273.771081] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  273.789980] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  273.797685] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  273.804948] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  273.812209] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  273.819500] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  273.826761] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  273.834036]  ? dump_stack+0x34f/0x39d
[  273.837846]  ? dump_stack_print_info.cold.1+0x20/0x20
[  273.843049]  ? mark_held_locks+0x130/0x130
[  273.847286]  ? mark_held_locks+0x130/0x130
[  273.851539]  dump_header+0x27b/0xf72
[  273.855298]  ? pagefault_out_of_memory+0x197/0x197
[  273.860226]  ? __lock_acquire+0x62f/0x4c20
[  273.864471]  ? percpu_ref_get_many+0x240/0x240
[  273.869051]  ? print_usage_bug+0xc0/0xc0
[  273.873136]  ? zap_class+0x640/0x640
[  273.877356]  ? print_usage_bug+0xc0/0xc0
[  273.881414]  ? print_usage_bug+0xc0/0xc0
[  273.885489]  ? zap_class+0x640/0x640
[  273.889203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.894742]  ? find_held_lock+0x36/0x1c0
[  273.898808]  ? mark_held_locks+0xc7/0x130
[  273.902956]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  273.908052]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  273.913147]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  273.917721]  ? trace_hardirqs_on+0xbd/0x310
[  273.922031]  ? kasan_check_read+0x11/0x20
[  273.926184]  ? ___ratelimit+0x3b4/0x672
[  273.930153]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.935254]  ? trace_hardirqs_on+0x310/0x310
[  273.939847]  ? lock_downgrade+0x900/0x900
[  273.944020]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  273.949165]  ? ___ratelimit+0x3b9/0x672
[  273.953164]  ? idr_get_free+0xf70/0xf70
[  273.957136]  ? find_held_lock+0x36/0x1c0
[  273.961231]  oom_kill_process.cold.27+0x10/0x903
[  273.966027]  ? zap_class+0x640/0x640
[  273.969732]  ? check_preemption_disabled+0x48/0x280
[  273.974738]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.979672]  ? kasan_check_read+0x11/0x20
[  273.983807]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.989168]  ? oom_evaluate_task+0x540/0x540
[  273.993605]  ? find_held_lock+0x36/0x1c0
[  273.997674]  ? out_of_memory+0x974/0x1430
[  274.001814]  ? lock_downgrade+0x900/0x900
[  274.005964]  ? check_preemption_disabled+0x48/0x280
[  274.010974]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  274.015923]  ? kasan_check_read+0x11/0x20
[  274.020098]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.025370]  ? rcu_softirq_qs+0x20/0x20
[  274.029340]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.034873]  ? oom_evaluate_task+0x302/0x540
[  274.039277]  out_of_memory+0xa84/0x1430
[  274.043248]  ? oom_killer_disable+0x3a0/0x3a0
[  274.047739]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  274.052679]  ? __ww_mutex_check_waiters+0x160/0x160
[  274.057696]  __alloc_pages_slowpath+0x2354/0x2e10
[  274.062571]  ? warn_alloc+0x120/0x120
[  274.066401]  ? mark_held_locks+0x130/0x130
[  274.070636]  ? find_get_entry+0xaae/0x1120
[  274.074889]  ? filemap_map_pages+0x1a20/0x1a20
[  274.079471]  ? zap_class+0x640/0x640
[  274.083203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.088769]  ? check_preemption_disabled+0x48/0x280
[  274.093785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.099336]  ? should_fail+0x22d/0xd01
[  274.103225]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.108331]  ? zap_class+0x640/0x640
[  274.112067]  ? __lock_is_held+0xb5/0x140
[  274.116143]  ? mark_held_locks+0x130/0x130
[  274.120380]  ? lock_release+0xa00/0xa00
[  274.124355]  ? perf_trace_sched_process_exec+0x860/0x860
[  274.129805]  ? xa_load+0x2ba/0x460
[  274.133351]  ? lock_downgrade+0x900/0x900
[  274.137503]  ? __might_sleep+0x95/0x190
[  274.141484]  __alloc_pages_nodemask+0xa80/0xde0
[  274.146173]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  274.151195]  ? __page_cache_alloc+0x191/0x5c0
[  274.155689]  ? xa_load+0x2e1/0x460
[  274.159231]  ? xa_clear_mark+0x40/0x40
[  274.163120]  ? zap_class+0x640/0x640
[  274.166845]  ? zap_class+0x640/0x640
[  274.170567]  ? zap_class+0x640/0x640
[  274.174280]  ? __do_page_cache_readahead+0x663/0x810
[  274.179389]  ? find_held_lock+0x36/0x1c0
[  274.183457]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  274.189001]  alloc_pages_current+0x173/0x350
[  274.193415]  __page_cache_alloc+0x38c/0x5c0
[  274.197732]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  274.202662]  ? kasan_check_read+0x11/0x20
[  274.206807]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.212087]  ? generic_perform_write+0x6a0/0x6a0
[  274.216866]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.222407]  ? check_preemption_disabled+0x48/0x280
[  274.227429]  filemap_fault+0x1595/0x25f0
[  274.231559]  ? __lock_page_or_retry+0xa00/0xa00
[  274.236231]  ? mark_held_locks+0x130/0x130
[  274.240479]  ? filemap_map_pages+0xd6b/0x1a20
[  274.244976]  ? lock_downgrade+0x900/0x900
[  274.249125]  ? check_preemption_disabled+0x48/0x280
[  274.254145]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  274.259092]  ? kasan_check_read+0x11/0x20
[  274.263284]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.268562]  ? rcu_softirq_qs+0x20/0x20
[  274.272563]  ? filemap_map_pages+0xd92/0x1a20
[  274.277062]  ? print_usage_bug+0xc0/0xc0
[  274.281128]  ? find_get_entries_tag+0x1400/0x1400
[  274.285987]  ? __kasan_slab_free+0x102/0x150
[  274.290396]  ? kasan_slab_free+0xe/0x10
[  274.294367]  ? kmem_cache_free+0x83/0x290
[  274.298517]  ? __sigqueue_free.part.29+0x74/0x90
[  274.303290]  ? lock_acquire+0x1ed/0x520
[  274.307267]  ? ext4_filemap_fault+0x7a/0xad
[  274.311595]  ? lock_release+0xa00/0xa00
[  274.315565]  ? perf_trace_sched_process_exec+0x860/0x860
[  274.321032]  ? print_usage_bug+0xc0/0xc0
[  274.325097]  ? print_usage_bug+0xc0/0xc0
[  274.329169]  ? down_read+0x8d/0x120
[  274.332798]  ? ext4_filemap_fault+0x7a/0xad
[  274.337123]  ? __down_interruptible+0x700/0x700
[  274.341799]  ext4_filemap_fault+0x82/0xad
[  274.345981]  __do_fault+0x100/0x6b0
[  274.349613]  ? pmd_devmap_trans_unstable+0x220/0x220
[  274.354763]  ? mark_held_locks+0x130/0x130
[  274.359027]  ? mark_held_locks+0x130/0x130
[  274.363262]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  274.368812]  ? rcu_pm_notify+0xc0/0xc0
[  274.372703]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.378239]  __handle_mm_fault+0x3ea0/0x5be0
[  274.382700]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  274.387548]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.392039]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  274.396636]  ? trace_hardirqs_on+0xbd/0x310
[  274.400957]  ? kasan_check_read+0x11/0x20
[  274.405099]  ? __set_current_blocked+0xdf/0x120
[  274.409779]  ? trace_hardirqs_off_caller+0x310/0x310
[  274.414894]  ? zap_class+0x640/0x640
[  274.418622]  ? zap_class+0x640/0x640
[  274.422341]  ? find_held_lock+0x36/0x1c0
[  274.426417]  ? handle_mm_fault+0x42a/0xc70
[  274.430671]  ? lock_downgrade+0x900/0x900
[  274.434830]  ? check_preemption_disabled+0x48/0x280
[  274.439865]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  274.444792]  ? kasan_check_read+0x11/0x20
[  274.448937]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.454241]  ? rcu_softirq_qs+0x20/0x20
[  274.458209]  ? trace_hardirqs_off_caller+0x310/0x310
[  274.463306]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.468877]  ? check_preemption_disabled+0x48/0x280
[  274.473895]  handle_mm_fault+0x54f/0xc70
[  274.477957]  ? __handle_mm_fault+0x5be0/0x5be0
[  274.482535]  ? find_vma+0x34/0x190
[  274.486074]  __do_page_fault+0x5e8/0xe60
[  274.490132]  ? exit_to_usermode_loop+0x1f4/0x380
[  274.494892]  do_page_fault+0xf2/0x7e0
[  274.498687]  ? vmalloc_sync_all+0x30/0x30
[  274.502879]  ? error_entry+0x70/0xd0
[  274.506591]  ? trace_hardirqs_off_caller+0xbb/0x310
[  274.511597]  ? trace_hardirqs_on_caller+0xc0/0x310
[  274.516516]  ? syscall_return_slowpath+0x5e0/0x5e0
[  274.521434]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.526267]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.531294]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  274.536744]  ? prepare_exit_to_usermode+0x291/0x3b0
[  274.541769]  ? page_fault+0x8/0x30
[  274.545304]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.550139]  ? page_fault+0x8/0x30
[  274.553677]  page_fault+0x1e/0x30
[  274.557118] RIP: 0033:0x45db60
[  274.560307] Code: Bad RIP value.
[  274.563663] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  274.569029] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  274.576289] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  274.583548] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  274.590805] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  274.598066] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  274.605356] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  274.605361] warn_alloc_show_mem: 1 callbacks suppressed
[  274.605367] Mem-Info:
[  274.612647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  274.618025] active_anon:54051 inactive_anon:192 isolated_anon:0
[  274.618025]  active_file:9 inactive_file:20 isolated_file:0
[  274.618025]  unevictable:0 dirty:0 writeback:0 unstable:0
[  274.618025]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  274.618025]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  274.618025]  free:13735 free_pcp:540 free_cma:0
[  274.620402] Call Trace:
[  274.629844] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  274.662593]  <IRQ>
[  274.665151] 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
[  274.692578]  dump_stack+0x244/0x39d
[  274.694705] lowmem_reserve[]: 0 2818 6321 6321
[  274.720811]  ? dump_stack_print_info.cold.1+0x20/0x20
[  274.724430] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  274.729010]  warn_alloc.cold.116+0xb7/0x1bd
[  274.734166] lowmem_reserve[]: 0 0 3503 3503
[  274.761946]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  274.766248] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  274.770572]  ? lock_downgrade+0x900/0x900
[  274.775401] lowmem_reserve[]: 0 0 0 0
[  274.804479]  ? trace_hardirqs_off+0xb8/0x310
[  274.808615] 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
[  274.812409]  ? trace_hardirqs_off+0xb8/0x310
[  274.816804] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  274.830360]  __alloc_pages_slowpath+0x26e8/0x2e10
[  274.834742] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  274.850012]  ? warn_alloc+0x120/0x120
[  274.854817] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  274.868935]  ? print_usage_bug+0xc0/0xc0
[  274.872717] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  274.881554]  ? warn_alloc+0x120/0x120
[  274.885592] 273 total pagecache pages
[  274.894166]  ? warn_alloc+0x120/0x120
[  274.897946] 0 pages in swap cache
[  274.901746]  ? print_usage_bug+0xc0/0xc0
[  274.905522] Swap cache stats: add 0, delete 0, find 0/0
[  274.909012]  ? kvm_clock_read+0x18/0x30
[  274.913046] Free swap  = 0kB
[  274.918401]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  274.922349] Total swap = 0kB
[  274.925374]  ? print_usage_bug+0xc0/0xc0
[  274.930369] 1965979 pages RAM
[  274.933381]  ? __lock_acquire+0x62f/0x4c20
[  274.937417] 0 pages HighMem/MovableOnly
[  274.940509]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.944737] 342853 pages reserved
[  274.948694]  ? should_fail+0x22d/0xd01
[  274.954208] 0 pages cma reserved
[  274.957674]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.961585] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  274.964881]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.964893]  ? __lock_acquire+0x62f/0x4c20
[  274.964907]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.970201] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  274.976647]  ? __lock_acquire+0x62f/0x4c20
[  274.981757] syz-fuzzer cpuset=/ mems_allowed=0
[  274.986048]  ? should_fail+0x22d/0xd01
[  275.014051]  ? rcu_irq_exit+0x1a2/0x390
[  275.018057]  ? mark_held_locks+0x130/0x130
[  275.022282]  ? mark_held_locks+0x130/0x130
[  275.026507]  ? mark_held_locks+0xc7/0x130
[  275.030662]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  275.035683]  ? zap_class+0x640/0x640
[  275.039400]  ? print_usage_bug+0xc0/0xc0
[  275.043471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.048997]  ? check_preemption_disabled+0x48/0x280
[  275.054030]  ? __lock_is_held+0xb5/0x140
[  275.058093]  __alloc_pages_nodemask+0xa80/0xde0
[  275.062753]  ? zap_class+0x640/0x640
[  275.066460]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  275.071477]  ? find_held_lock+0x36/0x1c0
[  275.075536]  ? ____cache_alloc_node+0x1c7/0x1e0
[  275.080201]  ? lock_downgrade+0x900/0x900
[  275.084352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.089890]  cache_grow_begin+0xa5/0x8c0
[  275.093961]  ? do_raw_spin_unlock+0xa7/0x330
[  275.098417]  fallback_alloc+0x204/0x2e0
[  275.102409]  ____cache_alloc_node+0x1c7/0x1e0
[  275.106924]  kmem_cache_alloc_node+0xe3/0x730
[  275.111435]  ? ipv6_get_ifaddr+0x42e/0x620
[  275.115679]  __alloc_skb+0x119/0x770
[  275.119402]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.124681]  ? netdev_alloc_frag+0x1f0/0x1f0
[  275.129084]  ? lock_downgrade+0x900/0x900
[  275.133235]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.138782]  ? refcount_sub_and_test_checked+0x203/0x310
[  275.144237]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  275.149680]  ? addrconf_rs_timer+0x690/0x690
[  275.154107]  ndisc_alloc_skb+0x144/0x340
[  275.158188]  ndisc_send_rs+0x331/0x6e0
[  275.162072]  addrconf_rs_timer+0x314/0x690
[  275.166322]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.170575]  call_timer_fn+0x272/0x920
[  275.174455]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.178683]  ? process_timeout+0x40/0x40
[  275.182745]  ? __run_timers+0x7da/0xc70
[  275.186715]  ? _raw_spin_unlock_irq+0x27/0x80
[  275.191200]  ? _raw_spin_unlock_irq+0x27/0x80
[  275.195702]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.199931]  ? lockdep_hardirqs_on+0x296/0x5b0
[  275.204515]  ? trace_hardirqs_on+0xbd/0x310
[  275.208832]  ? kasan_check_read+0x11/0x20
[  275.213030]  ? __run_timers+0x7da/0xc70
[  275.217001]  ? trace_hardirqs_off_caller+0x310/0x310
[  275.222100]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.226347]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.230589]  __run_timers+0x7e5/0xc70
[  275.234393]  ? timer_fixup_init+0x70/0x70
[  275.238564]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  275.243586]  ? zap_class+0x640/0x640
[  275.247330]  ? enqueue_hrtimer+0x1a5/0x560
[  275.251565]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  275.256753]  ? find_held_lock+0x36/0x1c0
[  275.260814]  ? zap_class+0x640/0x640
[  275.264523]  ? pvclock_read_flags+0x160/0x160
[  275.269014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.274548]  ? check_preemption_disabled+0x48/0x280
[  275.279584]  ? __lock_is_held+0xb5/0x140
[  275.283642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.289204]  ? check_preemption_disabled+0x48/0x280
[  275.294222]  run_timer_softirq+0x52/0xb0
[  275.298284]  ? rcu_read_lock_sched_held+0x14f/0x180
[  275.303321]  __do_softirq+0x308/0xb7e
[  275.307118]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  275.311630]  ? lock_downgrade+0x900/0x900
[  275.315776]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  275.320887]  ? pvclock_read_flags+0x160/0x160
[  275.325391]  ? lapic_next_event+0x5a/0x90
[  275.329568]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.335103]  ? kvm_clock_read+0x18/0x30
[  275.339074]  ? kvm_sched_clock_read+0x9/0x20
[  275.343480]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.349014]  ? check_preemption_disabled+0x48/0x280
[  275.354067]  irq_exit+0x17f/0x1c0
[  275.357512]  smp_apic_timer_interrupt+0x1cb/0x760
[  275.362348]  ? smp_reschedule_interrupt+0x109/0x650
[  275.367389]  ? smp_call_function_single_interrupt+0x650/0x650
[  275.373284]  ? interrupt_entry+0xb5/0xc0
[  275.377359]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.382369]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.387381]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.392244]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.397254]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.402262]  ? task_prio+0x50/0x50
[  275.405796]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.411342]  ? check_preemption_disabled+0x48/0x280
[  275.416396]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.421256]  apic_timer_interrupt+0xf/0x20
[  275.425483]  </IRQ>
[  275.427734] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  275.432655] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  275.451573] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  275.459273] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  275.466536] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  275.473814] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  275.481109] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  275.488367] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  275.495690]  skb_clone+0x1bb/0x500
[  275.499337]  ? finish_task_switch+0x2f4/0x910
[  275.503825]  ? skb_split+0x11e0/0x11e0
[  275.507712]  ? preempt_notifier_register+0x200/0x200
[  275.512804]  ? __switch_to_asm+0x34/0x70
[  275.516864]  ? __switch_to_asm+0x34/0x70
[  275.520936]  ? __switch_to_asm+0x40/0x70
[  275.524992]  ? __switch_to_asm+0x34/0x70
[  275.529059]  ? __switch_to_asm+0x40/0x70
[  275.533160]  ? __switch_to_asm+0x34/0x70
[  275.537211]  ? __switch_to_asm+0x40/0x70
[  275.541262]  ? __switch_to_asm+0x34/0x70
[  275.545331]  ? __switch_to_asm+0x34/0x70
[  275.549382]  ? __switch_to_asm+0x40/0x70
[  275.553451]  ? __switch_to_asm+0x34/0x70
[  275.557533]  bpf_clone_redirect+0xb9/0x490
[  275.561763]  ? __schedule+0x8d7/0x21d0
[  275.565649]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  275.570659]  ? __sched_text_start+0x8/0x8
[  275.574799]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  275.579568]  ? find_held_lock+0x36/0x1c0
[  275.583643]  ? lock_acquire+0x1ed/0x520
[  275.587625]  ? bpf_test_run+0x3cb/0x780
[  275.591595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.597152]  ? check_preemption_disabled+0x48/0x280
[  275.602190]  ? kasan_check_read+0x11/0x20
[  275.606338]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.611629]  ? rcu_softirq_qs+0x20/0x20
[  275.615599]  ? preempt_schedule+0x4d/0x60
[  275.619740]  ? ___preempt_schedule+0x16/0x18
[  275.624151]  ? bpf_test_run+0x25d/0x780
[  275.628126]  ? netlink_diag_dump+0x2a0/0x2a0
[  275.632581]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.638114]  ? bpf_test_init.isra.10+0x70/0x100
[  275.642839]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  275.647651]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  275.652531]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  275.658081]  ? fput+0x130/0x1a0
[  275.661387]  ? __bpf_prog_get+0x9b/0x290
[  275.665478]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  275.670327]  ? bpf_prog_test_run+0x130/0x1a0
[  275.674748]  ? __x64_sys_bpf+0x3d8/0x520
[  275.678803]  ? bpf_prog_get+0x20/0x20
[  275.682653]  ? do_syscall_64+0x1b9/0x820
[  275.686721]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  275.692082]  ? syscall_return_slowpath+0x5e0/0x5e0
[  275.697012]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.702032]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  275.707048]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  275.713717]  ? __switch_to_asm+0x40/0x70
[  275.717780]  ? __switch_to_asm+0x34/0x70
[  275.721836]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.726682]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  275.732077] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  275.732157] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  275.739083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  275.739088] Call Trace:
[  275.739093]  <IRQ>
[  275.739108]  dump_stack+0x244/0x39d
[  275.739124]  ? dump_stack_print_info.cold.1+0x20/0x20
[  275.745898] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  275.755168]  warn_alloc.cold.116+0xb7/0x1bd
[  275.757728] syz-executor3 cpuset=syz3 mems_allowed=0
[  275.759903]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  275.793403]  ? lock_downgrade+0x900/0x900
[  275.797616]  ? trace_hardirqs_off+0xb8/0x310
[  275.802022]  ? trace_hardirqs_off+0xb8/0x310
[  275.806485]  __alloc_pages_slowpath+0x26e8/0x2e10
[  275.811365]  ? warn_alloc+0x120/0x120
[  275.815177]  ? print_usage_bug+0xc0/0xc0
[  275.819249]  ? warn_alloc+0x120/0x120
[  275.823053]  ? warn_alloc+0x120/0x120
[  275.826859]  ? print_usage_bug+0xc0/0xc0
[  275.830924]  ? print_usage_bug+0xc0/0xc0
[  275.834990]  ? __lock_acquire+0x62f/0x4c20
[  275.839230]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.844765]  ? should_fail+0x22d/0xd01
[  275.848662]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  275.853779]  ? __lock_acquire+0x62f/0x4c20
[  275.858017]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  275.863117]  ? __lock_acquire+0x62f/0x4c20
[  275.867351]  ? should_fail+0x22d/0xd01
[  275.871236]  ? find_held_lock+0x36/0x1c0
[  275.875800]  ? mark_held_locks+0x130/0x130
[  275.880043]  ? mark_held_locks+0x130/0x130
[  275.884279]  ? zap_class+0x640/0x640
[  275.887992]  ? zap_class+0x640/0x640
[  275.891712]  ? print_usage_bug+0xc0/0xc0
[  275.895770]  ? do_raw_spin_unlock+0xa7/0x330
[  275.900186]  ? zap_class+0x640/0x640
[  275.903899]  ? print_usage_bug+0xc0/0xc0
[  275.907961]  ? wq_watchdog_touch+0x9c/0xfe
[  275.912198]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.917735]  ? check_preemption_disabled+0x48/0x280
[  275.922758]  ? __lock_is_held+0xb5/0x140
[  275.926818]  __alloc_pages_nodemask+0xa80/0xde0
[  275.931477]  ? zap_class+0x640/0x640
[  275.935193]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  275.940307]  ? find_held_lock+0x36/0x1c0
[  275.944369]  ? ____cache_alloc_node+0x1c7/0x1e0
[  275.949032]  ? lock_downgrade+0x900/0x900
[  275.953192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.958722]  cache_grow_begin+0xa5/0x8c0
[  275.962775]  ? do_raw_spin_unlock+0xa7/0x330
[  275.967199]  fallback_alloc+0x204/0x2e0
[  275.971170]  ____cache_alloc_node+0x1c7/0x1e0
[  275.975667]  kmem_cache_alloc_node+0xe3/0x730
[  275.980185]  ? ipv6_get_ifaddr+0x42e/0x620
[  275.984421]  __alloc_skb+0x119/0x770
[  275.988155]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.993427]  ? netdev_alloc_frag+0x1f0/0x1f0
[  275.997843]  ? lock_downgrade+0x900/0x900
[  276.001992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.007521]  ? refcount_sub_and_test_checked+0x203/0x310
[  276.012985]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  276.018429]  ? addrconf_rs_timer+0x690/0x690
[  276.022857]  ndisc_alloc_skb+0x144/0x340
[  276.026926]  ndisc_send_rs+0x331/0x6e0
[  276.030825]  addrconf_rs_timer+0x314/0x690
[  276.035062]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.039298]  call_timer_fn+0x272/0x920
[  276.043186]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.047425]  ? process_timeout+0x40/0x40
[  276.051502]  ? mark_held_locks+0xc7/0x130
[  276.055643]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.060131]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.064660]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.068886]  ? lockdep_hardirqs_on+0x296/0x5b0
[  276.073461]  ? trace_hardirqs_on+0xbd/0x310
[  276.077778]  ? kasan_check_read+0x11/0x20
[  276.081922]  ? __run_timers+0x7da/0xc70
[  276.085892]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.090995]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.095239]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.099499]  __run_timers+0x7e5/0xc70
[  276.103304]  ? timer_fixup_init+0x70/0x70
[  276.107450]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  276.112463]  ? zap_class+0x640/0x640
[  276.116194]  ? print_usage_bug+0xc0/0xc0
[  276.120253]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  276.125446]  ? find_held_lock+0x36/0x1c0
[  276.129511]  ? zap_class+0x640/0x640
[  276.133241]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.138777]  ? check_preemption_disabled+0x48/0x280
[  276.143814]  ? __lock_is_held+0xb5/0x140
[  276.147892]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.153450]  ? check_preemption_disabled+0x48/0x280
[  276.158466]  run_timer_softirq+0x52/0xb0
[  276.162522]  ? rcu_read_lock_sched_held+0x14f/0x180
[  276.167549]  __do_softirq+0x308/0xb7e
[  276.171377]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  276.175901]  ? lock_downgrade+0x900/0x900
[  276.180049]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  276.185153]  ? pvclock_read_flags+0x160/0x160
[  276.189656]  ? lapic_next_event+0x5a/0x90
[  276.193817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.199350]  ? kvm_clock_read+0x18/0x30
[  276.203317]  ? kvm_sched_clock_read+0x9/0x20
[  276.207720]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.213251]  ? check_preemption_disabled+0x48/0x280
[  276.218298]  irq_exit+0x17f/0x1c0
[  276.221750]  smp_apic_timer_interrupt+0x1cb/0x760
[  276.226585]  ? smp_reschedule_interrupt+0x109/0x650
[  276.231607]  ? smp_call_function_single_interrupt+0x650/0x650
[  276.237496]  ? interrupt_entry+0xb5/0xc0
[  276.241549]  ? trace_hardirqs_off_caller+0xbb/0x310
[  276.246604]  ? trace_hardirqs_off_caller+0xbb/0x310
[  276.251618]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.256475]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.261494]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.266556]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.271431]  apic_timer_interrupt+0xf/0x20
[  276.275656]  </IRQ>
[  276.277887] RIP: 0010:dump_stack+0x358/0x39d
[  276.282288] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  276.301178] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  276.308877] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  276.316140] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  276.323395] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  276.330657] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  276.337913] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  276.345186]  ? dump_stack+0x34f/0x39d
[  276.349015]  ? dump_stack_print_info.cold.1+0x20/0x20
[  276.354211]  ? mark_held_locks+0x130/0x130
[  276.358437]  ? mark_held_locks+0x130/0x130
[  276.362667]  dump_header+0x27b/0xf72
[  276.366382]  ? pagefault_out_of_memory+0x197/0x197
[  276.371323]  ? __lock_acquire+0x62f/0x4c20
[  276.375553]  ? percpu_ref_get_many+0x240/0x240
[  276.380126]  ? print_usage_bug+0xc0/0xc0
[  276.384230]  ? zap_class+0x640/0x640
[  276.387954]  ? print_usage_bug+0xc0/0xc0
[  276.392008]  ? print_usage_bug+0xc0/0xc0
[  276.396066]  ? zap_class+0x640/0x640
[  276.399777]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.405313]  ? find_held_lock+0x36/0x1c0
[  276.409379]  ? mark_held_locks+0xc7/0x130
[  276.413522]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  276.418619]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  276.423720]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  276.428297]  ? trace_hardirqs_on+0xbd/0x310
[  276.432611]  ? kasan_check_read+0x11/0x20
[  276.436752]  ? ___ratelimit+0x3b4/0x672
[  276.440719]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.445820]  ? trace_hardirqs_on+0x310/0x310
[  276.450255]  ? lock_downgrade+0x900/0x900
[  276.454414]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  276.459538]  ? ___ratelimit+0x3b9/0x672
[  276.463523]  ? idr_get_free+0xf70/0xf70
[  276.467494]  ? find_held_lock+0x36/0x1c0
[  276.471552]  oom_kill_process.cold.27+0x10/0x903
[  276.476327]  ? zap_class+0x640/0x640
[  276.480033]  ? check_preemption_disabled+0x48/0x280
[  276.485043]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.489965]  ? kasan_check_read+0x11/0x20
[  276.494107]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.499397]  ? oom_evaluate_task+0x540/0x540
[  276.503800]  ? find_held_lock+0x36/0x1c0
[  276.507864]  ? out_of_memory+0x974/0x1430
[  276.512039]  ? lock_downgrade+0x900/0x900
[  276.516178]  ? check_preemption_disabled+0x48/0x280
[  276.521190]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.526126]  ? kasan_check_read+0x11/0x20
[  276.530265]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.535536]  ? rcu_softirq_qs+0x20/0x20
[  276.539538]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.545066]  ? oom_evaluate_task+0x302/0x540
[  276.549474]  out_of_memory+0xa84/0x1430
[  276.553451]  ? oom_killer_disable+0x3a0/0x3a0
[  276.557943]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  276.562876]  ? __ww_mutex_check_waiters+0x160/0x160
[  276.567895]  __alloc_pages_slowpath+0x2354/0x2e10
[  276.572767]  ? warn_alloc+0x120/0x120
[  276.576573]  ? mark_held_locks+0x130/0x130
[  276.580834]  ? find_get_entry+0xaae/0x1120
[  276.585075]  ? filemap_map_pages+0x1a20/0x1a20
[  276.589661]  ? zap_class+0x640/0x640
[  276.593390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.598922]  ? check_preemption_disabled+0x48/0x280
[  276.603937]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.609475]  ? should_fail+0x22d/0xd01
[  276.613368]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.618474]  ? zap_class+0x640/0x640
[  276.622222]  ? __lock_is_held+0xb5/0x140
[  276.626306]  ? mark_held_locks+0x130/0x130
[  276.630570]  ? lock_release+0xa00/0xa00
[  276.634548]  ? perf_trace_sched_process_exec+0x860/0x860
[  276.640026]  ? xa_load+0x2ba/0x460
[  276.643565]  ? lock_downgrade+0x900/0x900
[  276.647719]  ? __might_sleep+0x95/0x190
[  276.651692]  __alloc_pages_nodemask+0xa80/0xde0
[  276.656368]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  276.661393]  ? __page_cache_alloc+0x191/0x5c0
[  276.665908]  ? xa_load+0x2e1/0x460
[  276.669461]  ? xa_clear_mark+0x40/0x40
[  276.673380]  ? zap_class+0x640/0x640
[  276.677098]  ? zap_class+0x640/0x640
[  276.680813]  ? zap_class+0x640/0x640
[  276.684543]  ? __do_page_cache_readahead+0x663/0x810
[  276.689645]  ? find_held_lock+0x36/0x1c0
[  276.693711]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  276.699254]  alloc_pages_current+0x173/0x350
[  276.703672]  __page_cache_alloc+0x38c/0x5c0
[  276.707990]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.712919]  ? kasan_check_read+0x11/0x20
[  276.717066]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.722359]  ? generic_perform_write+0x6a0/0x6a0
[  276.727116]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.732668]  ? check_preemption_disabled+0x48/0x280
[  276.737690]  filemap_fault+0x1595/0x25f0
[  276.741763]  ? __lock_page_or_retry+0xa00/0xa00
[  276.746431]  ? mark_held_locks+0x130/0x130
[  276.750678]  ? filemap_map_pages+0xd6b/0x1a20
[  276.755175]  ? lock_downgrade+0x900/0x900
[  276.759322]  ? check_preemption_disabled+0x48/0x280
[  276.764339]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.769279]  ? kasan_check_read+0x11/0x20
[  276.773417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.778719]  ? rcu_softirq_qs+0x20/0x20
[  276.782717]  ? filemap_map_pages+0xd92/0x1a20
[  276.787207]  ? print_usage_bug+0xc0/0xc0
[  276.791275]  ? find_get_entries_tag+0x1400/0x1400
[  276.796110]  ? __kasan_slab_free+0x102/0x150
[  276.800522]  ? kasan_slab_free+0xe/0x10
[  276.804502]  ? kmem_cache_free+0x83/0x290
[  276.808654]  ? __sigqueue_free.part.29+0x74/0x90
[  276.813447]  ? lock_acquire+0x1ed/0x520
[  276.817444]  ? ext4_filemap_fault+0x7a/0xad
[  276.821760]  ? lock_release+0xa00/0xa00
[  276.825728]  ? perf_trace_sched_process_exec+0x860/0x860
[  276.831219]  ? print_usage_bug+0xc0/0xc0
[  276.835288]  ? print_usage_bug+0xc0/0xc0
[  276.839408]  ? down_read+0x8d/0x120
[  276.843029]  ? ext4_filemap_fault+0x7a/0xad
[  276.847347]  ? __down_interruptible+0x700/0x700
[  276.852052]  ext4_filemap_fault+0x82/0xad
[  276.856199]  __do_fault+0x100/0x6b0
[  276.859830]  ? pmd_devmap_trans_unstable+0x220/0x220
[  276.864951]  ? mark_held_locks+0x130/0x130
[  276.869186]  ? mark_held_locks+0x130/0x130
[  276.873420]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  276.878969]  ? rcu_pm_notify+0xc0/0xc0
[  276.882884]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.888467]  __handle_mm_fault+0x3ea0/0x5be0
[  276.892882]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  276.897720]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.902212]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  276.906794]  ? trace_hardirqs_on+0xbd/0x310
[  276.911109]  ? kasan_check_read+0x11/0x20
[  276.915249]  ? __set_current_blocked+0xdf/0x120
[  276.919915]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.925022]  ? zap_class+0x640/0x640
[  276.928731]  ? zap_class+0x640/0x640
[  276.932458]  ? find_held_lock+0x36/0x1c0
[  276.936519]  ? handle_mm_fault+0x42a/0xc70
[  276.940775]  ? lock_downgrade+0x900/0x900
[  276.944930]  ? check_preemption_disabled+0x48/0x280
[  276.949955]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.954885]  ? kasan_check_read+0x11/0x20
[  276.959035]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.964321]  ? rcu_softirq_qs+0x20/0x20
[  276.968287]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.973384]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.978921]  ? check_preemption_disabled+0x48/0x280
[  276.983933]  handle_mm_fault+0x54f/0xc70
[  276.988005]  ? __handle_mm_fault+0x5be0/0x5be0
[  276.992582]  ? find_vma+0x34/0x190
[  276.996122]  __do_page_fault+0x5e8/0xe60
[  277.000181]  ? exit_to_usermode_loop+0x1f4/0x380
[  277.004937]  do_page_fault+0xf2/0x7e0
[  277.008730]  ? vmalloc_sync_all+0x30/0x30
[  277.012886]  ? error_entry+0x70/0xd0
[  277.016605]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.021645]  ? trace_hardirqs_on_caller+0xc0/0x310
[  277.026572]  ? syscall_return_slowpath+0x5e0/0x5e0
[  277.031523]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.036384]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.041424]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  277.046882]  ? prepare_exit_to_usermode+0x291/0x3b0
[  277.051898]  ? page_fault+0x8/0x30
[  277.055444]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.060387]  ? page_fault+0x8/0x30
[  277.063929]  page_fault+0x1e/0x30
[  277.067377] RIP: 0033:0x45db60
[  277.070579] Code: Bad RIP value.
[  277.073949] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  277.079310] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  277.086575] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  277.093839] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  277.101116] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  277.108423] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  277.115714] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  277.115720] warn_alloc_show_mem: 1 callbacks suppressed
[  277.115727] Mem-Info:
[  277.122995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  277.128362] active_anon:54051 inactive_anon:192 isolated_anon:0
[  277.128362]  active_file:9 inactive_file:20 isolated_file:0
[  277.128362]  unevictable:0 dirty:0 writeback:0 unstable:0
[  277.128362]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  277.128362]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  277.128362]  free:13735 free_pcp:540 free_cma:0
[  277.130745] Call Trace:
[  277.140131] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  277.172884]  <IRQ>
[  277.175468] 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
[  277.202876]  dump_stack+0x244/0x39d
[  277.205000] lowmem_reserve[]: 0 2818 6321 6321
[  277.231113]  ? dump_stack_print_info.cold.1+0x20/0x20
[  277.234707] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  277.239333]  warn_alloc.cold.116+0xb7/0x1bd
[  277.244487] lowmem_reserve[]: 0 0 3503 3503
[  277.272258]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  277.276566] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  277.280926]  ? lock_downgrade+0x900/0x900
[  277.285763] lowmem_reserve[]: 0 0 0 0
[  277.314918]  ? trace_hardirqs_off+0xb8/0x310
[  277.319033] 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
[  277.322821]  ? trace_hardirqs_off+0xb8/0x310
[  277.327198] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  277.340714]  __alloc_pages_slowpath+0x26e8/0x2e10
[  277.345093] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  277.360385]  ? warn_alloc+0x120/0x120
[  277.365184] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  277.379298]  ? print_usage_bug+0xc0/0xc0
[  277.383091] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  277.391908]  ? warn_alloc+0x120/0x120
[  277.395944] 273 total pagecache pages
[  277.404506]  ? warn_alloc+0x120/0x120
[  277.408285] 0 pages in swap cache
[  277.412079]  ? print_usage_bug+0xc0/0xc0
[  277.415864] Swap cache stats: add 0, delete 0, find 0/0
[  277.419332]  ? kvm_clock_read+0x18/0x30
[  277.423367] Free swap  = 0kB
[  277.428714]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  277.432673] Total swap = 0kB
[  277.435678]  ? print_usage_bug+0xc0/0xc0
[  277.440665] 1965979 pages RAM
[  277.443686]  ? __lock_acquire+0x62f/0x4c20
[  277.447712] 0 pages HighMem/MovableOnly
[  277.447719] 342853 pages reserved
[  277.450816]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.455025] 0 pages cma reserved
[  277.458985]  ? should_fail+0x22d/0xd01
[  277.462461] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  277.467925]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.467941]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.471377] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  277.475172]  ? __lock_acquire+0x62f/0x4c20
[  277.481670] syz-fuzzer cpuset=/ mems_allowed=0
[  277.486976]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.516205]  ? __lock_acquire+0x62f/0x4c20
[  277.520430]  ? should_fail+0x22d/0xd01
[  277.524306]  ? rcu_irq_exit+0x1a2/0x390
[  277.528280]  ? mark_held_locks+0x130/0x130
[  277.532513]  ? mark_held_locks+0x130/0x130
[  277.536742]  ? mark_held_locks+0xc7/0x130
[  277.540885]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  277.545895]  ? zap_class+0x640/0x640
[  277.549599]  ? print_usage_bug+0xc0/0xc0
[  277.553652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.559200]  ? check_preemption_disabled+0x48/0x280
[  277.564220]  ? __lock_is_held+0xb5/0x140
[  277.568293]  __alloc_pages_nodemask+0xa80/0xde0
[  277.572986]  ? zap_class+0x640/0x640
[  277.576696]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  277.581714]  ? find_held_lock+0x36/0x1c0
[  277.585776]  ? ____cache_alloc_node+0x1c7/0x1e0
[  277.590440]  ? lock_downgrade+0x900/0x900
[  277.594637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.600184]  cache_grow_begin+0xa5/0x8c0
[  277.604244]  ? do_raw_spin_unlock+0xa7/0x330
[  277.608687]  fallback_alloc+0x204/0x2e0
[  277.612663]  ____cache_alloc_node+0x1c7/0x1e0
[  277.617164]  kmem_cache_alloc_node+0xe3/0x730
[  277.621664]  ? ipv6_get_ifaddr+0x42e/0x620
[  277.625910]  __alloc_skb+0x119/0x770
[  277.629623]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.634901]  ? netdev_alloc_frag+0x1f0/0x1f0
[  277.639307]  ? lock_downgrade+0x900/0x900
[  277.643457]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.648993]  ? refcount_sub_and_test_checked+0x203/0x310
[  277.654474]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  277.659954]  ? addrconf_rs_timer+0x690/0x690
[  277.664367]  ndisc_alloc_skb+0x144/0x340
[  277.668428]  ndisc_send_rs+0x331/0x6e0
[  277.672334]  addrconf_rs_timer+0x314/0x690
[  277.676578]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.680821]  call_timer_fn+0x272/0x920
[  277.684712]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.688945]  ? process_timeout+0x40/0x40
[  277.693006]  ? __run_timers+0x7da/0xc70
[  277.696976]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.701479]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.706014]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.710241]  ? lockdep_hardirqs_on+0x296/0x5b0
[  277.714820]  ? trace_hardirqs_on+0xbd/0x310
[  277.719134]  ? kasan_check_read+0x11/0x20
[  277.723283]  ? __run_timers+0x7da/0xc70
[  277.727267]  ? trace_hardirqs_off_caller+0x310/0x310
[  277.732368]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.736602]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.740827]  __run_timers+0x7e5/0xc70
[  277.744776]  ? timer_fixup_init+0x70/0x70
[  277.748960]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  277.754017]  ? zap_class+0x640/0x640
[  277.757727]  ? enqueue_hrtimer+0x1a5/0x560
[  277.761976]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  277.767179]  ? find_held_lock+0x36/0x1c0
[  277.771250]  ? zap_class+0x640/0x640
[  277.774958]  ? pvclock_read_flags+0x160/0x160
[  277.779461]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.785019]  ? check_preemption_disabled+0x48/0x280
[  277.790069]  ? __lock_is_held+0xb5/0x140
[  277.794122]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.799674]  ? check_preemption_disabled+0x48/0x280
[  277.804687]  run_timer_softirq+0x52/0xb0
[  277.808738]  ? rcu_read_lock_sched_held+0x14f/0x180
[  277.813744]  __do_softirq+0x308/0xb7e
[  277.817541]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  277.822026]  ? lock_downgrade+0x900/0x900
[  277.826174]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  277.831281]  ? pvclock_read_flags+0x160/0x160
[  277.835774]  ? lapic_next_event+0x5a/0x90
[  277.839921]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.845460]  ? kvm_clock_read+0x18/0x30
[  277.849427]  ? kvm_sched_clock_read+0x9/0x20
[  277.853849]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.859391]  ? check_preemption_disabled+0x48/0x280
[  277.864413]  irq_exit+0x17f/0x1c0
[  277.867871]  smp_apic_timer_interrupt+0x1cb/0x760
[  277.872733]  ? smp_reschedule_interrupt+0x109/0x650
[  277.877849]  ? smp_call_function_single_interrupt+0x650/0x650
[  277.883749]  ? interrupt_entry+0xb5/0xc0
[  277.887825]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.892848]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.897874]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.902710]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.907733]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.912754]  ? task_prio+0x50/0x50
[  277.916289]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.921836]  ? check_preemption_disabled+0x48/0x280
[  277.926849]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.931828]  apic_timer_interrupt+0xf/0x20
[  277.936051]  </IRQ>
[  277.938280] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  277.943202] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  277.962092] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  277.969785] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  277.977070] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  277.984353] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  277.991625] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  277.998881] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  278.006173]  skb_clone+0x1bb/0x500
[  278.009707]  ? finish_task_switch+0x2f4/0x910
[  278.014195]  ? skb_split+0x11e0/0x11e0
[  278.018077]  ? preempt_notifier_register+0x200/0x200
[  278.023177]  ? __switch_to_asm+0x34/0x70
[  278.027242]  ? __switch_to_asm+0x34/0x70
[  278.031317]  ? __switch_to_asm+0x40/0x70
[  278.035413]  ? __switch_to_asm+0x34/0x70
[  278.039462]  ? __switch_to_asm+0x40/0x70
[  278.043513]  ? __switch_to_asm+0x34/0x70
[  278.047574]  ? __switch_to_asm+0x40/0x70
[  278.051637]  ? __switch_to_asm+0x34/0x70
[  278.055688]  ? __switch_to_asm+0x34/0x70
[  278.059747]  ? __switch_to_asm+0x40/0x70
[  278.063886]  ? __switch_to_asm+0x34/0x70
[  278.067947]  bpf_clone_redirect+0xb9/0x490
[  278.072181]  ? __schedule+0x8d7/0x21d0
[  278.076068]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  278.081078]  ? __sched_text_start+0x8/0x8
[  278.085262]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  278.090058]  ? find_held_lock+0x36/0x1c0
[  278.094142]  ? lock_acquire+0x1ed/0x520
[  278.098121]  ? bpf_test_run+0x3cb/0x780
[  278.102097]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.107629]  ? check_preemption_disabled+0x48/0x280
[  278.112647]  ? kasan_check_read+0x11/0x20
[  278.116819]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.122128]  ? rcu_softirq_qs+0x20/0x20
[  278.126107]  ? preempt_schedule+0x4d/0x60
[  278.130248]  ? ___preempt_schedule+0x16/0x18
[  278.134689]  ? bpf_test_run+0x25d/0x780
[  278.138672]  ? netlink_diag_dump+0x2a0/0x2a0
[  278.143076]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.148608]  ? bpf_test_init.isra.10+0x70/0x100
[  278.153278]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  278.158074]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  278.162909]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  278.168443]  ? fput+0x130/0x1a0
[  278.171722]  ? __bpf_prog_get+0x9b/0x290
[  278.175787]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  278.180627]  ? bpf_prog_test_run+0x130/0x1a0
[  278.185047]  ? __x64_sys_bpf+0x3d8/0x520
[  278.189108]  ? bpf_prog_get+0x20/0x20
[  278.192928]  ? do_syscall_64+0x1b9/0x820
[  278.196987]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  278.202361]  ? syscall_return_slowpath+0x5e0/0x5e0
[  278.207284]  ? trace_hardirqs_on_caller+0x310/0x310
[  278.212328]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  278.217336]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  278.223991]  ? __switch_to_asm+0x40/0x70
[  278.228045]  ? __switch_to_asm+0x34/0x70
[  278.232108]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.236950]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  278.242320] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  278.242370] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  278.249323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  278.249330] Call Trace:
[  278.255877] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  278.265148]  <IRQ>
[  278.267730] syz-executor3 cpuset=syz3 mems_allowed=0
[  278.278219]  dump_stack+0x244/0x39d
[  278.289048]  ? dump_stack_print_info.cold.1+0x20/0x20
[  278.294245]  warn_alloc.cold.116+0xb7/0x1bd
[  278.298580]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  278.303519]  ? lock_downgrade+0x900/0x900
[  278.307683]  ? trace_hardirqs_off+0xb8/0x310
[  278.312089]  ? trace_hardirqs_off+0xb8/0x310
[  278.316510]  __alloc_pages_slowpath+0x26e8/0x2e10
[  278.321399]  ? warn_alloc+0x120/0x120
[  278.325191]  ? print_usage_bug+0xc0/0xc0
[  278.329270]  ? warn_alloc+0x120/0x120
[  278.333082]  ? warn_alloc+0x120/0x120
[  278.336898]  ? print_usage_bug+0xc0/0xc0
[  278.340998]  ? print_usage_bug+0xc0/0xc0
[  278.345053]  ? __lock_acquire+0x62f/0x4c20
[  278.349307]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.354850]  ? should_fail+0x22d/0xd01
[  278.358743]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.363837]  ? __lock_acquire+0x62f/0x4c20
[  278.368072]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.373164]  ? __lock_acquire+0x62f/0x4c20
[  278.377407]  ? should_fail+0x22d/0xd01
[  278.381299]  ? find_held_lock+0x36/0x1c0
[  278.385405]  ? mark_held_locks+0x130/0x130
[  278.389679]  ? mark_held_locks+0x130/0x130
[  278.393916]  ? zap_class+0x640/0x640
[  278.397635]  ? zap_class+0x640/0x640
[  278.401345]  ? print_usage_bug+0xc0/0xc0
[  278.405411]  ? do_raw_spin_unlock+0xa7/0x330
[  278.409843]  ? zap_class+0x640/0x640
[  278.413559]  ? print_usage_bug+0xc0/0xc0
[  278.417640]  ? wq_watchdog_touch+0x9c/0xfe
[  278.421879]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.427411]  ? check_preemption_disabled+0x48/0x280
[  278.432447]  ? __lock_is_held+0xb5/0x140
[  278.436507]  __alloc_pages_nodemask+0xa80/0xde0
[  278.441169]  ? zap_class+0x640/0x640
[  278.444891]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  278.449911]  ? find_held_lock+0x36/0x1c0
[  278.453973]  ? ____cache_alloc_node+0x1c7/0x1e0
[  278.458659]  ? lock_downgrade+0x900/0x900
[  278.462811]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.468351]  cache_grow_begin+0xa5/0x8c0
[  278.472410]  ? do_raw_spin_unlock+0xa7/0x330
[  278.476823]  fallback_alloc+0x204/0x2e0
[  278.480806]  ____cache_alloc_node+0x1c7/0x1e0
[  278.485303]  kmem_cache_alloc_node+0xe3/0x730
[  278.489808]  ? ipv6_get_ifaddr+0x42e/0x620
[  278.494048]  __alloc_skb+0x119/0x770
[  278.497755]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.503030]  ? netdev_alloc_frag+0x1f0/0x1f0
[  278.507452]  ? lock_downgrade+0x900/0x900
[  278.511604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.517135]  ? refcount_sub_and_test_checked+0x203/0x310
[  278.522615]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  278.528057]  ? addrconf_rs_timer+0x690/0x690
[  278.532470]  ndisc_alloc_skb+0x144/0x340
[  278.536524]  ndisc_send_rs+0x331/0x6e0
[  278.540422]  addrconf_rs_timer+0x314/0x690
[  278.544701]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.548937]  call_timer_fn+0x272/0x920
[  278.552849]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.557086]  ? process_timeout+0x40/0x40
[  278.561166]  ? mark_held_locks+0xc7/0x130
[  278.565312]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.569802]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.574286]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.578513]  ? lockdep_hardirqs_on+0x296/0x5b0
[  278.583089]  ? trace_hardirqs_on+0xbd/0x310
[  278.587414]  ? kasan_check_read+0x11/0x20
[  278.591567]  ? __run_timers+0x7da/0xc70
[  278.595559]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.600675]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.604936]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.609178]  __run_timers+0x7e5/0xc70
[  278.612983]  ? timer_fixup_init+0x70/0x70
[  278.617126]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  278.622134]  ? zap_class+0x640/0x640
[  278.625847]  ? print_usage_bug+0xc0/0xc0
[  278.629928]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  278.635115]  ? find_held_lock+0x36/0x1c0
[  278.639177]  ? zap_class+0x640/0x640
[  278.642939]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.648516]  ? check_preemption_disabled+0x48/0x280
[  278.653535]  ? __lock_is_held+0xb5/0x140
[  278.657591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.663120]  ? check_preemption_disabled+0x48/0x280
[  278.668147]  run_timer_softirq+0x52/0xb0
[  278.672218]  ? rcu_read_lock_sched_held+0x14f/0x180
[  278.677225]  __do_softirq+0x308/0xb7e
[  278.681021]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  278.685509]  ? lock_downgrade+0x900/0x900
[  278.689687]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  278.694790]  ? pvclock_read_flags+0x160/0x160
[  278.699283]  ? lapic_next_event+0x5a/0x90
[  278.703465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.709007]  ? kvm_clock_read+0x18/0x30
[  278.712982]  ? kvm_sched_clock_read+0x9/0x20
[  278.717393]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.722928]  ? check_preemption_disabled+0x48/0x280
[  278.727966]  irq_exit+0x17f/0x1c0
[  278.731417]  smp_apic_timer_interrupt+0x1cb/0x760
[  278.736275]  ? smp_reschedule_interrupt+0x109/0x650
[  278.741308]  ? smp_call_function_single_interrupt+0x650/0x650
[  278.747208]  ? interrupt_entry+0xb5/0xc0
[  278.751270]  ? trace_hardirqs_off_caller+0xbb/0x310
[  278.756284]  ? trace_hardirqs_off_caller+0xbb/0x310
[  278.761323]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.766167]  ? trace_hardirqs_on_caller+0x310/0x310
[  278.771177]  ? trace_hardirqs_on_caller+0x310/0x310
[  278.776200]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.781042]  apic_timer_interrupt+0xf/0x20
[  278.785268]  </IRQ>
[  278.787500] RIP: 0010:dump_stack+0x358/0x39d
[  278.791901] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  278.810792] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  278.818493] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  278.825757] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  278.833032] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  278.840295] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  278.847593] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  278.854877]  ? dump_stack+0x34f/0x39d
[  278.858690]  ? dump_stack_print_info.cold.1+0x20/0x20
[  278.863890]  ? mark_held_locks+0x130/0x130
[  278.868123]  ? mark_held_locks+0x130/0x130
[  278.872362]  dump_header+0x27b/0xf72
[  278.876088]  ? pagefault_out_of_memory+0x197/0x197
[  278.881024]  ? __lock_acquire+0x62f/0x4c20
[  278.885259]  ? percpu_ref_get_many+0x240/0x240
[  278.889867]  ? print_usage_bug+0xc0/0xc0
[  278.893934]  ? zap_class+0x640/0x640
[  278.897645]  ? print_usage_bug+0xc0/0xc0
[  278.901717]  ? print_usage_bug+0xc0/0xc0
[  278.905951]  ? zap_class+0x640/0x640
[  278.909664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.915218]  ? find_held_lock+0x36/0x1c0
[  278.919279]  ? mark_held_locks+0xc7/0x130
[  278.923427]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  278.928536]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  278.933670]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  278.938261]  ? trace_hardirqs_on+0xbd/0x310
[  278.942576]  ? kasan_check_read+0x11/0x20
[  278.946743]  ? ___ratelimit+0x3b4/0x672
[  278.950707]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.955801]  ? trace_hardirqs_on+0x310/0x310
[  278.960197]  ? lock_downgrade+0x900/0x900
[  278.964351]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  278.969490]  ? ___ratelimit+0x3b9/0x672
[  278.973472]  ? idr_get_free+0xf70/0xf70
[  278.977452]  ? find_held_lock+0x36/0x1c0
[  278.981513]  oom_kill_process.cold.27+0x10/0x903
[  278.986262]  ? zap_class+0x640/0x640
[  278.989967]  ? check_preemption_disabled+0x48/0x280
[  278.994989]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.999924]  ? kasan_check_read+0x11/0x20
[  279.004111]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.009396]  ? oom_evaluate_task+0x540/0x540
[  279.013797]  ? find_held_lock+0x36/0x1c0
[  279.017862]  ? out_of_memory+0x974/0x1430
[  279.022005]  ? lock_downgrade+0x900/0x900
[  279.026157]  ? check_preemption_disabled+0x48/0x280
[  279.031168]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  279.036089]  ? kasan_check_read+0x11/0x20
[  279.040227]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.045491]  ? rcu_softirq_qs+0x20/0x20
[  279.049488]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.055047]  ? oom_evaluate_task+0x302/0x540
[  279.059468]  out_of_memory+0xa84/0x1430
[  279.063440]  ? oom_killer_disable+0x3a0/0x3a0
[  279.067943]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  279.072907]  ? __ww_mutex_check_waiters+0x160/0x160
[  279.077953]  __alloc_pages_slowpath+0x2354/0x2e10
[  279.082820]  ? warn_alloc+0x120/0x120
[  279.086645]  ? mark_held_locks+0x130/0x130
[  279.090885]  ? find_get_entry+0xaae/0x1120
[  279.095126]  ? filemap_map_pages+0x1a20/0x1a20
[  279.099704]  ? zap_class+0x640/0x640
[  279.103414]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.108946]  ? check_preemption_disabled+0x48/0x280
[  279.113956]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.119501]  ? should_fail+0x22d/0xd01
[  279.123393]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.128531]  ? zap_class+0x640/0x640
[  279.132314]  ? __lock_is_held+0xb5/0x140
[  279.136397]  ? mark_held_locks+0x130/0x130
[  279.140631]  ? lock_release+0xa00/0xa00
[  279.144607]  ? perf_trace_sched_process_exec+0x860/0x860
[  279.150079]  ? xa_load+0x2ba/0x460
[  279.153618]  ? lock_downgrade+0x900/0x900
[  279.157764]  ? __might_sleep+0x95/0x190
[  279.161738]  __alloc_pages_nodemask+0xa80/0xde0
[  279.166431]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  279.171441]  ? __page_cache_alloc+0x191/0x5c0
[  279.175939]  ? xa_load+0x2e1/0x460
[  279.179508]  ? xa_clear_mark+0x40/0x40
[  279.183393]  ? zap_class+0x640/0x640
[  279.187123]  ? zap_class+0x640/0x640
[  279.190833]  ? zap_class+0x640/0x640
[  279.194547]  ? __do_page_cache_readahead+0x663/0x810
[  279.199672]  ? find_held_lock+0x36/0x1c0
[  279.203733]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  279.209287]  alloc_pages_current+0x173/0x350
[  279.213709]  __page_cache_alloc+0x38c/0x5c0
[  279.218023]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  279.222944]  ? kasan_check_read+0x11/0x20
[  279.227087]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.232371]  ? generic_perform_write+0x6a0/0x6a0
[  279.237144]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.242673]  ? check_preemption_disabled+0x48/0x280
[  279.247683]  filemap_fault+0x1595/0x25f0
[  279.251745]  ? __lock_page_or_retry+0xa00/0xa00
[  279.256408]  ? mark_held_locks+0x130/0x130
[  279.260639]  ? filemap_map_pages+0xd6b/0x1a20
[  279.265132]  ? lock_downgrade+0x900/0x900
[  279.269304]  ? check_preemption_disabled+0x48/0x280
[  279.274331]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  279.279251]  ? kasan_check_read+0x11/0x20
[  279.283398]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.288694]  ? rcu_softirq_qs+0x20/0x20
[  279.292688]  ? filemap_map_pages+0xd92/0x1a20
[  279.297178]  ? print_usage_bug+0xc0/0xc0
[  279.301233]  ? find_get_entries_tag+0x1400/0x1400
[  279.306086]  ? __kasan_slab_free+0x102/0x150
[  279.310503]  ? kasan_slab_free+0xe/0x10
[  279.314466]  ? kmem_cache_free+0x83/0x290
[  279.318608]  ? __sigqueue_free.part.29+0x74/0x90
[  279.323379]  ? lock_acquire+0x1ed/0x520
[  279.327370]  ? ext4_filemap_fault+0x7a/0xad
[  279.331700]  ? lock_release+0xa00/0xa00
[  279.335665]  ? perf_trace_sched_process_exec+0x860/0x860
[  279.341122]  ? print_usage_bug+0xc0/0xc0
[  279.345206]  ? print_usage_bug+0xc0/0xc0
[  279.349266]  ? down_read+0x8d/0x120
[  279.352886]  ? ext4_filemap_fault+0x7a/0xad
[  279.357206]  ? __down_interruptible+0x700/0x700
[  279.361899]  ext4_filemap_fault+0x82/0xad
[  279.366056]  __do_fault+0x100/0x6b0
[  279.369714]  ? pmd_devmap_trans_unstable+0x220/0x220
[  279.374816]  ? mark_held_locks+0x130/0x130
[  279.379047]  ? mark_held_locks+0x130/0x130
[  279.383279]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  279.388823]  ? rcu_pm_notify+0xc0/0xc0
[  279.392707]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.398248]  __handle_mm_fault+0x3ea0/0x5be0
[  279.402663]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  279.407496]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.411984]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  279.416560]  ? trace_hardirqs_on+0xbd/0x310
[  279.420877]  ? kasan_check_read+0x11/0x20
[  279.425032]  ? __set_current_blocked+0xdf/0x120
[  279.429719]  ? trace_hardirqs_off_caller+0x310/0x310
[  279.434819]  ? zap_class+0x640/0x640
[  279.438520]  ? zap_class+0x640/0x640
[  279.442228]  ? find_held_lock+0x36/0x1c0
[  279.446292]  ? handle_mm_fault+0x42a/0xc70
[  279.450519]  ? lock_downgrade+0x900/0x900
[  279.454679]  ? check_preemption_disabled+0x48/0x280
[  279.459700]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  279.464618]  ? kasan_check_read+0x11/0x20
[  279.468774]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.474072]  ? rcu_softirq_qs+0x20/0x20
[  279.478070]  ? trace_hardirqs_off_caller+0x310/0x310
[  279.483203]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.488730]  ? check_preemption_disabled+0x48/0x280
[  279.493741]  handle_mm_fault+0x54f/0xc70
[  279.497793]  ? __handle_mm_fault+0x5be0/0x5be0
[  279.502409]  ? find_vma+0x34/0x190
[  279.505946]  __do_page_fault+0x5e8/0xe60
[  279.509998]  ? exit_to_usermode_loop+0x1f4/0x380
[  279.514753]  do_page_fault+0xf2/0x7e0
[  279.518546]  ? vmalloc_sync_all+0x30/0x30
[  279.522684]  ? error_entry+0x70/0xd0
[  279.526391]  ? trace_hardirqs_off_caller+0xbb/0x310
[  279.531396]  ? trace_hardirqs_on_caller+0xc0/0x310
[  279.536332]  ? syscall_return_slowpath+0x5e0/0x5e0
[  279.541254]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.546101]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.551134]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  279.556610]  ? prepare_exit_to_usermode+0x291/0x3b0
[  279.561620]  ? page_fault+0x8/0x30
[  279.565166]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.570033]  ? page_fault+0x8/0x30
[  279.573567]  page_fault+0x1e/0x30
[  279.577027] RIP: 0033:0x45db60
[  279.580218] Code: Bad RIP value.
[  279.583607] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  279.588959] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  279.596238] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  279.603530] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  279.610810] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  279.618076] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  279.625380] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  279.625385] warn_alloc_show_mem: 1 callbacks suppressed
[  279.625392] Mem-Info:
[  279.632654] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  279.632662] Call Trace:
[  279.638044] active_anon:54051 inactive_anon:192 isolated_anon:0
[  279.638044]  active_file:9 inactive_file:20 isolated_file:0
[  279.638044]  unevictable:0 dirty:0 writeback:0 unstable:0
[  279.638044]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  279.638044]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  279.638044]  free:13735 free_pcp:540 free_cma:0
[  279.640448]  <IRQ>
[  279.649819] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  279.652403]  dump_stack+0x244/0x39d
[  279.685187] 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
[  279.687328]  ? dump_stack_print_info.cold.1+0x20/0x20
[  279.714725] lowmem_reserve[]: 0 2818 6321 6321
[  279.718378]  warn_alloc.cold.116+0xb7/0x1bd
[  279.744639] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  279.749848]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  279.754445] lowmem_reserve[]: 0 0 3503 3503
[  279.758760]  ? lock_downgrade+0x900/0x900
[  279.786489] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  279.791321]  ? trace_hardirqs_off+0xb8/0x310
[  279.795623] lowmem_reserve[]: 0 0 0 0
[  279.799759]  ? trace_hardirqs_off+0xb8/0x310
[  279.828803] 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
[  279.833205]  __alloc_pages_slowpath+0x26e8/0x2e10
[  279.836991] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  279.841435]  ? warn_alloc+0x120/0x120
[  279.854910] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  279.859746]  ? print_usage_bug+0xc0/0xc0
[  279.875444] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  279.879234]  ? warn_alloc+0x120/0x120
[  279.893344] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  279.897413]  ? warn_alloc+0x120/0x120
[  279.906217] 273 total pagecache pages
[  279.910007]  ? print_usage_bug+0xc0/0xc0
[  279.918560] 0 pages in swap cache
[  279.922353]  ? kvm_clock_read+0x18/0x30
[  279.926142] Swap cache stats: add 0, delete 0, find 0/0
[  279.930375]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  279.933799] Free swap  = 0kB
[  279.937762]  ? print_usage_bug+0xc0/0xc0
[  279.943181] Total swap = 0kB
[  279.948183]  ? __lock_acquire+0x62f/0x4c20
[  279.951187] 1965979 pages RAM
[  279.955233]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.958253] 0 pages HighMem/MovableOnly
[  279.962496]  ? should_fail+0x22d/0xd01
[  279.965582] 342853 pages reserved
[  279.971102]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.975044] 0 pages cma reserved
[  279.978923]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.982413] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  279.987651]  ? __lock_acquire+0x62f/0x4c20
[  279.991105] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  279.996123]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  280.002602] syz-fuzzer cpuset=/ mems_allowed=0
[  280.006837]  ? __lock_acquire+0x62f/0x4c20
[  280.030899]  ? should_fail+0x22d/0xd01
[  280.034776]  ? rcu_irq_exit+0x1a2/0x390
[  280.038748]  ? mark_held_locks+0x130/0x130
[  280.042977]  ? mark_held_locks+0x130/0x130
[  280.047210]  ? mark_held_locks+0xc7/0x130
[  280.051354]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  280.056393]  ? zap_class+0x640/0x640
[  280.060101]  ? print_usage_bug+0xc0/0xc0
[  280.064165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.069713]  ? check_preemption_disabled+0x48/0x280
[  280.074746]  ? __lock_is_held+0xb5/0x140
[  280.078806]  __alloc_pages_nodemask+0xa80/0xde0
[  280.083492]  ? zap_class+0x640/0x640
[  280.087223]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  280.092246]  ? find_held_lock+0x36/0x1c0
[  280.096313]  ? ____cache_alloc_node+0x1c7/0x1e0
[  280.100980]  ? lock_downgrade+0x900/0x900
[  280.105279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.110829]  cache_grow_begin+0xa5/0x8c0
[  280.114889]  ? do_raw_spin_unlock+0xa7/0x330
[  280.119296]  fallback_alloc+0x204/0x2e0
[  280.123269]  ____cache_alloc_node+0x1c7/0x1e0
[  280.127761]  kmem_cache_alloc_node+0xe3/0x730
[  280.132251]  ? ipv6_get_ifaddr+0x42e/0x620
[  280.136488]  __alloc_skb+0x119/0x770
[  280.140194]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.145468]  ? netdev_alloc_frag+0x1f0/0x1f0
[  280.149885]  ? lock_downgrade+0x900/0x900
[  280.154031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.159560]  ? refcount_sub_and_test_checked+0x203/0x310
[  280.165020]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  280.170483]  ? addrconf_rs_timer+0x690/0x690
[  280.174902]  ndisc_alloc_skb+0x144/0x340
[  280.178994]  ndisc_send_rs+0x331/0x6e0
[  280.182904]  addrconf_rs_timer+0x314/0x690
[  280.187140]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.191390]  call_timer_fn+0x272/0x920
[  280.195276]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.199515]  ? process_timeout+0x40/0x40
[  280.203602]  ? __run_timers+0x7da/0xc70
[  280.207569]  ? _raw_spin_unlock_irq+0x27/0x80
[  280.212057]  ? _raw_spin_unlock_irq+0x27/0x80
[  280.216577]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.220821]  ? lockdep_hardirqs_on+0x296/0x5b0
[  280.225404]  ? trace_hardirqs_on+0xbd/0x310
[  280.229747]  ? kasan_check_read+0x11/0x20
[  280.233888]  ? __run_timers+0x7da/0xc70
[  280.237864]  ? trace_hardirqs_off_caller+0x310/0x310
[  280.242962]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.247191]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.251427]  __run_timers+0x7e5/0xc70
[  280.255228]  ? timer_fixup_init+0x70/0x70
[  280.259424]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  280.264435]  ? zap_class+0x640/0x640
[  280.268166]  ? enqueue_hrtimer+0x1a5/0x560
[  280.272394]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  280.277583]  ? find_held_lock+0x36/0x1c0
[  280.281642]  ? zap_class+0x640/0x640
[  280.285351]  ? pvclock_read_flags+0x160/0x160
[  280.289893]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.295474]  ? check_preemption_disabled+0x48/0x280
[  280.300490]  ? __lock_is_held+0xb5/0x140
[  280.304548]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.310080]  ? check_preemption_disabled+0x48/0x280
[  280.315093]  run_timer_softirq+0x52/0xb0
[  280.319199]  ? rcu_read_lock_sched_held+0x14f/0x180
[  280.324239]  __do_softirq+0x308/0xb7e
[  280.328037]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  280.332523]  ? lock_downgrade+0x900/0x900
[  280.336685]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  280.341797]  ? pvclock_read_flags+0x160/0x160
[  280.346286]  ? lapic_next_event+0x5a/0x90
[  280.350427]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.355962]  ? kvm_clock_read+0x18/0x30
[  280.359929]  ? kvm_sched_clock_read+0x9/0x20
[  280.364334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.369894]  ? check_preemption_disabled+0x48/0x280
[  280.374910]  irq_exit+0x17f/0x1c0
[  280.378382]  smp_apic_timer_interrupt+0x1cb/0x760
[  280.383255]  ? smp_reschedule_interrupt+0x109/0x650
[  280.388265]  ? smp_call_function_single_interrupt+0x650/0x650
[  280.394179]  ? interrupt_entry+0xb5/0xc0
[  280.398250]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.403260]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.408271]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.413155]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.418169]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.423184]  ? task_prio+0x50/0x50
[  280.426720]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.432274]  ? check_preemption_disabled+0x48/0x280
[  280.437301]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.442145]  apic_timer_interrupt+0xf/0x20
[  280.446392]  </IRQ>
[  280.448641] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  280.453562] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  280.472453] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  280.480200] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  280.487504] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  280.494763] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  280.502020] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  280.509290] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  280.516577]  skb_clone+0x1bb/0x500
[  280.520125]  ? finish_task_switch+0x2f4/0x910
[  280.524626]  ? skb_split+0x11e0/0x11e0
[  280.528526]  ? preempt_notifier_register+0x200/0x200
[  280.533618]  ? __switch_to_asm+0x34/0x70
[  280.537672]  ? __switch_to_asm+0x34/0x70
[  280.541732]  ? __switch_to_asm+0x40/0x70
[  280.545782]  ? __switch_to_asm+0x34/0x70
[  280.549834]  ? __switch_to_asm+0x40/0x70
[  280.553908]  ? __switch_to_asm+0x34/0x70
[  280.557956]  ? __switch_to_asm+0x40/0x70
[  280.562007]  ? __switch_to_asm+0x34/0x70
[  280.566075]  ? __switch_to_asm+0x34/0x70
[  280.570127]  ? __switch_to_asm+0x40/0x70
[  280.574180]  ? __switch_to_asm+0x34/0x70
[  280.578233]  bpf_clone_redirect+0xb9/0x490
[  280.582476]  ? __schedule+0x8d7/0x21d0
[  280.586378]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  280.591404]  ? __sched_text_start+0x8/0x8
[  280.595591]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  280.600377]  ? find_held_lock+0x36/0x1c0
[  280.604439]  ? lock_acquire+0x1ed/0x520
[  280.608426]  ? bpf_test_run+0x3cb/0x780
[  280.612415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.617950]  ? check_preemption_disabled+0x48/0x280
[  280.622968]  ? kasan_check_read+0x11/0x20
[  280.627105]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.632386]  ? rcu_softirq_qs+0x20/0x20
[  280.636357]  ? preempt_schedule+0x4d/0x60
[  280.640500]  ? ___preempt_schedule+0x16/0x18
[  280.644908]  ? bpf_test_run+0x25d/0x780
[  280.648902]  ? netlink_diag_dump+0x2a0/0x2a0
[  280.653322]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.658880]  ? bpf_test_init.isra.10+0x70/0x100
[  280.663554]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  280.668315]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  280.673159]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  280.678692]  ? fput+0x130/0x1a0
[  280.681970]  ? __bpf_prog_get+0x9b/0x290
[  280.686029]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  280.690868]  ? bpf_prog_test_run+0x130/0x1a0
[  280.695276]  ? __x64_sys_bpf+0x3d8/0x520
[  280.699347]  ? bpf_prog_get+0x20/0x20
[  280.703165]  ? do_syscall_64+0x1b9/0x820
[  280.707225]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  280.712588]  ? syscall_return_slowpath+0x5e0/0x5e0
[  280.717519]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.722533]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  280.727544]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  280.734217]  ? __switch_to_asm+0x40/0x70
[  280.738267]  ? __switch_to_asm+0x34/0x70
[  280.742535]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.747377]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  280.752752] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  280.752834] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  280.759755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  280.759763] Call Trace:
[  280.766309] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  280.775571]  <IRQ>
[  280.778157] syz-executor3 cpuset=syz3 mems_allowed=0
[  280.788640]  dump_stack+0x244/0x39d
[  280.799477]  ? dump_stack_print_info.cold.1+0x20/0x20
[  280.804699]  warn_alloc.cold.116+0xb7/0x1bd
[  280.809016]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  280.813864]  ? lock_downgrade+0x900/0x900
[  280.818016]  ? trace_hardirqs_off+0xb8/0x310
[  280.822423]  ? trace_hardirqs_off+0xb8/0x310
[  280.826847]  __alloc_pages_slowpath+0x26e8/0x2e10
[  280.831765]  ? warn_alloc+0x120/0x120
[  280.835581]  ? print_usage_bug+0xc0/0xc0
[  280.839658]  ? warn_alloc+0x120/0x120
[  280.843494]  ? warn_alloc+0x120/0x120
[  280.847309]  ? print_usage_bug+0xc0/0xc0
[  280.851403]  ? print_usage_bug+0xc0/0xc0
[  280.855492]  ? __lock_acquire+0x62f/0x4c20
[  280.859779]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.865353]  ? should_fail+0x22d/0xd01
[  280.869236]  ? __lock_acquire+0x62f/0x4c20
[  280.873468]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  280.878565]  ? __lock_acquire+0x62f/0x4c20
[  280.882807]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  280.887919]  ? __lock_acquire+0x62f/0x4c20
[  280.892154]  ? should_fail+0x22d/0xd01
[  280.896047]  ? mark_held_locks+0x130/0x130
[  280.900281]  ? mark_held_locks+0x130/0x130
[  280.904510]  ? zap_class+0x640/0x640
[  280.908223]  ? zap_class+0x640/0x640
[  280.911949]  ? print_usage_bug+0xc0/0xc0
[  280.916005]  ? wq_watchdog_touch+0x9c/0xfe
[  280.920235]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.925770]  ? check_preemption_disabled+0x48/0x280
[  280.930792]  ? __lock_is_held+0xb5/0x140
[  280.934851]  __alloc_pages_nodemask+0xa80/0xde0
[  280.939553]  ? zap_class+0x640/0x640
[  280.943264]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  280.948282]  ? find_held_lock+0x36/0x1c0
[  280.952355]  ? ____cache_alloc_node+0x1c7/0x1e0
[  280.957029]  ? lock_downgrade+0x900/0x900
[  280.961174]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.966715]  cache_grow_begin+0xa5/0x8c0
[  280.970781]  ? do_raw_spin_unlock+0xa7/0x330
[  280.975196]  fallback_alloc+0x204/0x2e0
[  280.979162]  ____cache_alloc_node+0x1c7/0x1e0
[  280.983695]  kmem_cache_alloc_node+0xe3/0x730
[  280.988214]  ? ipv6_get_ifaddr+0x42e/0x620
[  280.992448]  __alloc_skb+0x119/0x770
[  280.996149]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.001415]  ? netdev_alloc_frag+0x1f0/0x1f0
[  281.005812]  ? lock_downgrade+0x900/0x900
[  281.009959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.015489]  ? refcount_sub_and_test_checked+0x203/0x310
[  281.020960]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  281.026460]  ? addrconf_rs_timer+0x690/0x690
[  281.030892]  ndisc_alloc_skb+0x144/0x340
[  281.034979]  ndisc_send_rs+0x331/0x6e0
[  281.038895]  addrconf_rs_timer+0x314/0x690
[  281.043125]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.047374]  call_timer_fn+0x272/0x920
[  281.051267]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.055491]  ? process_timeout+0x40/0x40
[  281.059568]  ? mark_held_locks+0xc7/0x130
[  281.063774]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.068258]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.072756]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.076998]  ? lockdep_hardirqs_on+0x296/0x5b0
[  281.081571]  ? trace_hardirqs_on+0xbd/0x310
[  281.085885]  ? kasan_check_read+0x11/0x20
[  281.090026]  ? __run_timers+0x7da/0xc70
[  281.094020]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.099125]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.103352]  __run_timers+0x7e5/0xc70
[  281.107186]  ? timer_fixup_init+0x70/0x70
[  281.111344]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  281.116377]  ? zap_class+0x640/0x640
[  281.120106]  ? print_usage_bug+0xc0/0xc0
[  281.124198]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  281.129419]  ? find_held_lock+0x36/0x1c0
[  281.133479]  ? zap_class+0x640/0x640
[  281.137202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.142765]  ? check_preemption_disabled+0x48/0x280
[  281.147783]  ? __lock_is_held+0xb5/0x140
[  281.151838]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.157391]  ? check_preemption_disabled+0x48/0x280
[  281.162421]  run_timer_softirq+0x52/0xb0
[  281.166527]  ? rcu_read_lock_sched_held+0x14f/0x180
[  281.171640]  __do_softirq+0x308/0xb7e
[  281.175445]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  281.179935]  ? lock_downgrade+0x900/0x900
[  281.184082]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  281.189223]  ? pvclock_read_flags+0x160/0x160
[  281.193717]  ? lapic_next_event+0x5a/0x90
[  281.197880]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.203417]  ? kvm_clock_read+0x18/0x30
[  281.207386]  ? kvm_sched_clock_read+0x9/0x20
[  281.211789]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.217351]  ? check_preemption_disabled+0x48/0x280
[  281.222428]  irq_exit+0x17f/0x1c0
[  281.225888]  smp_apic_timer_interrupt+0x1cb/0x760
[  281.230724]  ? smp_reschedule_interrupt+0x109/0x650
[  281.235739]  ? smp_call_function_single_interrupt+0x650/0x650
[  281.241638]  ? interrupt_entry+0xb5/0xc0
[  281.245704]  ? trace_hardirqs_off_caller+0xbb/0x310
[  281.250715]  ? trace_hardirqs_off_caller+0xbb/0x310
[  281.255725]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.260577]  ? trace_hardirqs_on_caller+0x310/0x310
[  281.265588]  ? trace_hardirqs_on_caller+0x310/0x310
[  281.270625]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.275491]  apic_timer_interrupt+0xf/0x20
[  281.279761]  </IRQ>
[  281.281993] RIP: 0010:dump_stack+0x358/0x39d
[  281.286417] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  281.305323] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  281.313025] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  281.320285] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  281.327579] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  281.334839] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  281.342108] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  281.349399]  ? dump_stack+0x34f/0x39d
[  281.353224]  ? dump_stack_print_info.cold.1+0x20/0x20
[  281.358409]  ? mark_held_locks+0x130/0x130
[  281.362667]  ? mark_held_locks+0x130/0x130
[  281.366899]  dump_header+0x27b/0xf72
[  281.370622]  ? pagefault_out_of_memory+0x197/0x197
[  281.375549]  ? __lock_acquire+0x62f/0x4c20
[  281.379778]  ? percpu_ref_get_many+0x240/0x240
[  281.384354]  ? print_usage_bug+0xc0/0xc0
[  281.388426]  ? zap_class+0x640/0x640
[  281.392136]  ? print_usage_bug+0xc0/0xc0
[  281.396232]  ? print_usage_bug+0xc0/0xc0
[  281.400317]  ? zap_class+0x640/0x640
[  281.404040]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.409576]  ? find_held_lock+0x36/0x1c0
[  281.413657]  ? mark_held_locks+0xc7/0x130
[  281.417799]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  281.422898]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  281.427996]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  281.432571]  ? trace_hardirqs_on+0xbd/0x310
[  281.436891]  ? kasan_check_read+0x11/0x20
[  281.441033]  ? ___ratelimit+0x3b4/0x672
[  281.445002]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.450101]  ? trace_hardirqs_on+0x310/0x310
[  281.454504]  ? lock_downgrade+0x900/0x900
[  281.458649]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  281.463753]  ? ___ratelimit+0x3b9/0x672
[  281.467728]  ? idr_get_free+0xf70/0xf70
[  281.471698]  ? find_held_lock+0x36/0x1c0
[  281.475760]  oom_kill_process.cold.27+0x10/0x903
[  281.480510]  ? zap_class+0x640/0x640
[  281.484216]  ? check_preemption_disabled+0x48/0x280
[  281.489240]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  281.494202]  ? kasan_check_read+0x11/0x20
[  281.498379]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.503655]  ? oom_evaluate_task+0x540/0x540
[  281.508062]  ? find_held_lock+0x36/0x1c0
[  281.512126]  ? out_of_memory+0x974/0x1430
[  281.516272]  ? lock_downgrade+0x900/0x900
[  281.520452]  ? check_preemption_disabled+0x48/0x280
[  281.525463]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  281.530427]  ? kasan_check_read+0x11/0x20
[  281.534568]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.539851]  ? rcu_softirq_qs+0x20/0x20
[  281.543841]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.549397]  ? oom_evaluate_task+0x302/0x540
[  281.553812]  out_of_memory+0xa84/0x1430
[  281.557790]  ? oom_killer_disable+0x3a0/0x3a0
[  281.562282]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  281.567208]  ? __ww_mutex_check_waiters+0x160/0x160
[  281.572226]  __alloc_pages_slowpath+0x2354/0x2e10
[  281.577095]  ? warn_alloc+0x120/0x120
[  281.580892]  ? mark_held_locks+0x130/0x130
[  281.585156]  ? find_get_entry+0xaae/0x1120
[  281.589392]  ? filemap_map_pages+0x1a20/0x1a20
[  281.594033]  ? zap_class+0x640/0x640
[  281.597764]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.603309]  ? check_preemption_disabled+0x48/0x280
[  281.608327]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.613885]  ? should_fail+0x22d/0xd01
[  281.617777]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.622890]  ? zap_class+0x640/0x640
[  281.626622]  ? __lock_is_held+0xb5/0x140
[  281.630691]  ? mark_held_locks+0x130/0x130
[  281.634928]  ? lock_release+0xa00/0xa00
[  281.638903]  ? perf_trace_sched_process_exec+0x860/0x860
[  281.644383]  ? xa_load+0x2ba/0x460
[  281.647925]  ? lock_downgrade+0x900/0x900
[  281.652072]  ? __might_sleep+0x95/0x190
[  281.656047]  __alloc_pages_nodemask+0xa80/0xde0
[  281.660719]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  281.665746]  ? __page_cache_alloc+0x191/0x5c0
[  281.670250]  ? xa_load+0x2e1/0x460
[  281.673806]  ? xa_clear_mark+0x40/0x40
[  281.677693]  ? zap_class+0x640/0x640
[  281.681414]  ? zap_class+0x640/0x640
[  281.685131]  ? zap_class+0x640/0x640
[  281.688845]  ? __do_page_cache_readahead+0x663/0x810
[  281.693973]  ? find_held_lock+0x36/0x1c0
[  281.698041]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  281.703585]  alloc_pages_current+0x173/0x350
[  281.708023]  __page_cache_alloc+0x38c/0x5c0
[  281.712355]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  281.717285]  ? kasan_check_read+0x11/0x20
[  281.721434]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.726714]  ? generic_perform_write+0x6a0/0x6a0
[  281.731562]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.737093]  ? check_preemption_disabled+0x48/0x280
[  281.742116]  filemap_fault+0x1595/0x25f0
[  281.746190]  ? __lock_page_or_retry+0xa00/0xa00
[  281.750866]  ? mark_held_locks+0x130/0x130
[  281.755106]  ? filemap_map_pages+0xd6b/0x1a20
[  281.759599]  ? lock_downgrade+0x900/0x900
[  281.763752]  ? check_preemption_disabled+0x48/0x280
[  281.768766]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  281.773687]  ? kasan_check_read+0x11/0x20
[  281.777862]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.783137]  ? rcu_softirq_qs+0x20/0x20
[  281.787118]  ? filemap_map_pages+0xd92/0x1a20
[  281.791631]  ? print_usage_bug+0xc0/0xc0
[  281.795691]  ? find_get_entries_tag+0x1400/0x1400
[  281.800522]  ? __kasan_slab_free+0x102/0x150
[  281.804922]  ? kasan_slab_free+0xe/0x10
[  281.808915]  ? kmem_cache_free+0x83/0x290
[  281.813070]  ? __sigqueue_free.part.29+0x74/0x90
[  281.817831]  ? lock_acquire+0x1ed/0x520
[  281.821803]  ? ext4_filemap_fault+0x7a/0xad
[  281.826124]  ? lock_release+0xa00/0xa00
[  281.830095]  ? perf_trace_sched_process_exec+0x860/0x860
[  281.835557]  ? print_usage_bug+0xc0/0xc0
[  281.839612]  ? print_usage_bug+0xc0/0xc0
[  281.843705]  ? down_read+0x8d/0x120
[  281.847323]  ? ext4_filemap_fault+0x7a/0xad
[  281.851637]  ? __down_interruptible+0x700/0x700
[  281.856335]  ext4_filemap_fault+0x82/0xad
[  281.860511]  __do_fault+0x100/0x6b0
[  281.864148]  ? pmd_devmap_trans_unstable+0x220/0x220
[  281.869263]  ? mark_held_locks+0x130/0x130
[  281.873974]  ? mark_held_locks+0x130/0x130
[  281.878207]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  281.883740]  ? rcu_pm_notify+0xc0/0xc0
[  281.887635]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.893186]  __handle_mm_fault+0x3ea0/0x5be0
[  281.897704]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  281.902537]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.907023]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  281.911601]  ? trace_hardirqs_on+0xbd/0x310
[  281.915931]  ? kasan_check_read+0x11/0x20
[  281.920072]  ? __set_current_blocked+0xdf/0x120
[  281.924754]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.929916]  ? zap_class+0x640/0x640
[  281.933645]  ? zap_class+0x640/0x640
[  281.937398]  ? find_held_lock+0x36/0x1c0
[  281.941460]  ? handle_mm_fault+0x42a/0xc70
[  281.945689]  ? lock_downgrade+0x900/0x900
[  281.949828]  ? check_preemption_disabled+0x48/0x280
[  281.954848]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  281.959777]  ? kasan_check_read+0x11/0x20
[  281.963921]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.969231]  ? rcu_softirq_qs+0x20/0x20
[  281.973195]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.978288]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.983819]  ? check_preemption_disabled+0x48/0x280
[  281.988848]  handle_mm_fault+0x54f/0xc70
[  281.992953]  ? __handle_mm_fault+0x5be0/0x5be0
[  281.997545]  ? find_vma+0x34/0x190
[  282.001114]  __do_page_fault+0x5e8/0xe60
[  282.005167]  ? exit_to_usermode_loop+0x1f4/0x380
[  282.009927]  do_page_fault+0xf2/0x7e0
[  282.013742]  ? vmalloc_sync_all+0x30/0x30
[  282.017891]  ? error_entry+0x70/0xd0
[  282.021597]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.026604]  ? trace_hardirqs_on_caller+0xc0/0x310
[  282.031539]  ? syscall_return_slowpath+0x5e0/0x5e0
[  282.036458]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.041308]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.046330]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  282.051789]  ? prepare_exit_to_usermode+0x291/0x3b0
[  282.056797]  ? page_fault+0x8/0x30
[  282.060331]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.065202]  ? page_fault+0x8/0x30
[  282.068740]  page_fault+0x1e/0x30
[  282.072186] RIP: 0033:0x45db60
[  282.075398] Code: Bad RIP value.
[  282.078754] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  282.084110] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  282.091370] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  282.098632] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  282.105911] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  282.113170] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  282.120481] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  282.120486] warn_alloc_show_mem: 1 callbacks suppressed
[  282.120493] Mem-Info:
[  282.127770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  282.133131] active_anon:54051 inactive_anon:192 isolated_anon:0
[  282.133131]  active_file:9 inactive_file:20 isolated_file:0
[  282.133131]  unevictable:0 dirty:0 writeback:0 unstable:0
[  282.133131]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  282.133131]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  282.133131]  free:13735 free_pcp:540 free_cma:0
[  282.135501] Call Trace:
[  282.145230] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  282.177983]  <IRQ>
[  282.180547] 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
[  282.207948]  dump_stack+0x244/0x39d
[  282.210071] lowmem_reserve[]: 0 2818 6321 6321
[  282.236176]  ? dump_stack_print_info.cold.1+0x20/0x20
[  282.239777] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  282.244359]  warn_alloc.cold.116+0xb7/0x1bd
[  282.249549] lowmem_reserve[]: 0 0 3503 3503
[  282.277312]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  282.281606] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  282.285920]  ? lock_downgrade+0x900/0x900
[  282.290733] lowmem_reserve[]: 0 0 0 0
[  282.319792]  ? trace_hardirqs_off+0xb8/0x310
[  282.323933] 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
[  282.327727]  ? trace_hardirqs_off+0xb8/0x310
[  282.332111] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  282.345645]  __alloc_pages_slowpath+0x26e8/0x2e10
[  282.350054] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  282.365349]  ? warn_alloc+0x120/0x120
[  282.370155] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  282.384275]  ? print_usage_bug+0xc0/0xc0
[  282.388060] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  282.396890]  ? warn_alloc+0x120/0x120
[  282.400945] 273 total pagecache pages
[  282.409511]  ? warn_alloc+0x120/0x120
[  282.413292] 0 pages in swap cache
[  282.417080]  ? print_usage_bug+0xc0/0xc0
[  282.420868] Swap cache stats: add 0, delete 0, find 0/0
[  282.424337]  ? kvm_clock_read+0x18/0x30
[  282.428377] Free swap  = 0kB
[  282.433737]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  282.437685] Total swap = 0kB
[  282.440698]  ? print_usage_bug+0xc0/0xc0
[  282.445686] 1965979 pages RAM
[  282.448722]  ? __lock_acquire+0x62f/0x4c20
[  282.452759] 0 pages HighMem/MovableOnly
[  282.455869]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.460078] 342853 pages reserved
[  282.464043]  ? should_fail+0x22d/0xd01
[  282.469551] 0 pages cma reserved
[  282.469633] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  282.473017]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.473037]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  282.473053]  ? __lock_acquire+0x62f/0x4c20
[  282.476993] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  282.480297]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  282.486765] syz-fuzzer cpuset=/ mems_allowed=0
[  282.492038]  ? __lock_acquire+0x62f/0x4c20
[  282.525438]  ? should_fail+0x22d/0xd01
[  282.529321]  ? rcu_irq_exit+0x1a2/0x390
[  282.533306]  ? mark_held_locks+0x130/0x130
[  282.537544]  ? mark_held_locks+0x130/0x130
[  282.541784]  ? mark_held_locks+0xc7/0x130
[  282.545945]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  282.550965]  ? zap_class+0x640/0x640
[  282.554678]  ? print_usage_bug+0xc0/0xc0
[  282.558742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.564294]  ? check_preemption_disabled+0x48/0x280
[  282.569335]  ? __lock_is_held+0xb5/0x140
[  282.573400]  __alloc_pages_nodemask+0xa80/0xde0
[  282.578069]  ? zap_class+0x640/0x640
[  282.581788]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  282.586815]  ? find_held_lock+0x36/0x1c0
[  282.590890]  ? ____cache_alloc_node+0x1c7/0x1e0
[  282.595573]  ? lock_downgrade+0x900/0x900
[  282.599740]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.605284]  cache_grow_begin+0xa5/0x8c0
[  282.609346]  ? do_raw_spin_unlock+0xa7/0x330
[  282.613766]  fallback_alloc+0x204/0x2e0
[  282.617768]  ____cache_alloc_node+0x1c7/0x1e0
[  282.622286]  kmem_cache_alloc_node+0xe3/0x730
[  282.626780]  ? ipv6_get_ifaddr+0x42e/0x620
[  282.631033]  __alloc_skb+0x119/0x770
[  282.634758]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.640040]  ? netdev_alloc_frag+0x1f0/0x1f0
[  282.644463]  ? lock_downgrade+0x900/0x900
[  282.648618]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.654176]  ? refcount_sub_and_test_checked+0x203/0x310
[  282.659645]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  282.665093]  ? addrconf_rs_timer+0x690/0x690
[  282.669516]  ndisc_alloc_skb+0x144/0x340
[  282.673628]  ndisc_send_rs+0x331/0x6e0
[  282.677546]  addrconf_rs_timer+0x314/0x690
[  282.681782]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.686039]  call_timer_fn+0x272/0x920
[  282.689928]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.694167]  ? process_timeout+0x40/0x40
[  282.698245]  ? __run_timers+0x7da/0xc70
[  282.702220]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.706715]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.711219]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.715461]  ? lockdep_hardirqs_on+0x296/0x5b0
[  282.720049]  ? trace_hardirqs_on+0xbd/0x310
[  282.724369]  ? kasan_check_read+0x11/0x20
[  282.728542]  ? __run_timers+0x7da/0xc70
[  282.732534]  ? trace_hardirqs_off_caller+0x310/0x310
[  282.737641]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.742054]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.746286]  __run_timers+0x7e5/0xc70
[  282.750097]  ? timer_fixup_init+0x70/0x70
[  282.754249]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  282.759284]  ? zap_class+0x640/0x640
[  282.763002]  ? enqueue_hrtimer+0x1a5/0x560
[  282.767238]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  282.772438]  ? find_held_lock+0x36/0x1c0
[  282.776503]  ? zap_class+0x640/0x640
[  282.780226]  ? pvclock_read_flags+0x160/0x160
[  282.784724]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.790262]  ? check_preemption_disabled+0x48/0x280
[  282.795288]  ? __lock_is_held+0xb5/0x140
[  282.799364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.804925]  ? check_preemption_disabled+0x48/0x280
[  282.809952]  run_timer_softirq+0x52/0xb0
[  282.814014]  ? rcu_read_lock_sched_held+0x14f/0x180
[  282.819034]  __do_softirq+0x308/0xb7e
[  282.822839]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  282.827346]  ? lock_downgrade+0x900/0x900
[  282.831496]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  282.836608]  ? pvclock_read_flags+0x160/0x160
[  282.841135]  ? lapic_next_event+0x5a/0x90
[  282.845323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.850880]  ? kvm_clock_read+0x18/0x30
[  282.854863]  ? kvm_sched_clock_read+0x9/0x20
[  282.859287]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.864822]  ? check_preemption_disabled+0x48/0x280
[  282.869864]  irq_exit+0x17f/0x1c0
[  282.873345]  smp_apic_timer_interrupt+0x1cb/0x760
[  282.878198]  ? smp_reschedule_interrupt+0x109/0x650
[  282.883210]  ? smp_call_function_single_interrupt+0x650/0x650
[  282.889110]  ? interrupt_entry+0xb5/0xc0
[  282.893191]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.898207]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.903237]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.908094]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.913108]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.918124]  ? task_prio+0x50/0x50
[  282.921682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.927218]  ? check_preemption_disabled+0x48/0x280
[  282.932238]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.937078]  apic_timer_interrupt+0xf/0x20
[  282.941306]  </IRQ>
[  282.943535] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  282.948457] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  282.967382] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  282.975076] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  282.982364] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  282.989648] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  282.996917] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  283.004178] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  283.011473]  skb_clone+0x1bb/0x500
[  283.015033]  ? finish_task_switch+0x2f4/0x910
[  283.019531]  ? skb_split+0x11e0/0x11e0
[  283.023414]  ? preempt_notifier_register+0x200/0x200
[  283.028505]  ? __switch_to_asm+0x34/0x70
[  283.032576]  ? __switch_to_asm+0x34/0x70
[  283.036620]  ? __switch_to_asm+0x40/0x70
[  283.040667]  ? __switch_to_asm+0x34/0x70
[  283.044714]  ? __switch_to_asm+0x40/0x70
[  283.048761]  ? __switch_to_asm+0x34/0x70
[  283.052806]  ? __switch_to_asm+0x40/0x70
[  283.056851]  ? __switch_to_asm+0x34/0x70
[  283.060922]  ? __switch_to_asm+0x34/0x70
[  283.064987]  ? __switch_to_asm+0x40/0x70
[  283.069050]  ? __switch_to_asm+0x34/0x70
[  283.073132]  bpf_clone_redirect+0xb9/0x490
[  283.077407]  ? __schedule+0x8d7/0x21d0
[  283.081304]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  283.086314]  ? __sched_text_start+0x8/0x8
[  283.090468]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  283.095243]  ? find_held_lock+0x36/0x1c0
[  283.099321]  ? lock_acquire+0x1ed/0x520
[  283.103292]  ? bpf_test_run+0x3cb/0x780
[  283.107267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.112814]  ? check_preemption_disabled+0x48/0x280
[  283.117829]  ? kasan_check_read+0x11/0x20
[  283.121980]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.127252]  ? rcu_softirq_qs+0x20/0x20
[  283.131221]  ? preempt_schedule+0x4d/0x60
[  283.135363]  ? ___preempt_schedule+0x16/0x18
[  283.139785]  ? bpf_test_run+0x25d/0x780
[  283.143763]  ? netlink_diag_dump+0x2a0/0x2a0
[  283.148171]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.153728]  ? bpf_test_init.isra.10+0x70/0x100
[  283.158407]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  283.163163]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  283.168036]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  283.173616]  ? fput+0x130/0x1a0
[  283.176893]  ? __bpf_prog_get+0x9b/0x290
[  283.180951]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  283.185817]  ? bpf_prog_test_run+0x130/0x1a0
[  283.190220]  ? __x64_sys_bpf+0x3d8/0x520
[  283.194289]  ? bpf_prog_get+0x20/0x20
[  283.198096]  ? do_syscall_64+0x1b9/0x820
[  283.202171]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  283.207527]  ? syscall_return_slowpath+0x5e0/0x5e0
[  283.212451]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.217463]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  283.222487]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  283.229146]  ? __switch_to_asm+0x40/0x70
[  283.233214]  ? __switch_to_asm+0x34/0x70
[  283.237274]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.242116]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  283.247500] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  283.247559] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  283.254515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  283.254520] Call Trace:
[  283.254524]  <IRQ>
[  283.254539]  dump_stack+0x244/0x39d
[  283.254557]  ? dump_stack_print_info.cold.1+0x20/0x20
[  283.261102] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  283.270390]  warn_alloc.cold.116+0xb7/0x1bd
[  283.272957] syz-executor3 cpuset=syz3 mems_allowed=0
[  283.275109]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  283.308575]  ? lock_downgrade+0x900/0x900
[  283.312725]  ? trace_hardirqs_off+0xb8/0x310
[  283.317144]  ? trace_hardirqs_off+0xb8/0x310
[  283.321547]  __alloc_pages_slowpath+0x26e8/0x2e10
[  283.326402]  ? warn_alloc+0x120/0x120
[  283.330199]  ? print_usage_bug+0xc0/0xc0
[  283.334312]  ? warn_alloc+0x120/0x120
[  283.338123]  ? warn_alloc+0x120/0x120
[  283.341916]  ? print_usage_bug+0xc0/0xc0
[  283.345970]  ? print_usage_bug+0xc0/0xc0
[  283.350037]  ? __lock_acquire+0x62f/0x4c20
[  283.354294]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.359847]  ? should_fail+0x22d/0xd01
[  283.363734]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.368823]  ? __lock_acquire+0x62f/0x4c20
[  283.373048]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.378162]  ? __lock_acquire+0x62f/0x4c20
[  283.382433]  ? should_fail+0x22d/0xd01
[  283.386327]  ? find_held_lock+0x36/0x1c0
[  283.390395]  ? mark_held_locks+0x130/0x130
[  283.394637]  ? mark_held_locks+0x130/0x130
[  283.398878]  ? zap_class+0x640/0x640
[  283.402596]  ? zap_class+0x640/0x640
[  283.406330]  ? print_usage_bug+0xc0/0xc0
[  283.410394]  ? do_raw_spin_unlock+0xa7/0x330
[  283.414805]  ? zap_class+0x640/0x640
[  283.418520]  ? print_usage_bug+0xc0/0xc0
[  283.422580]  ? wq_watchdog_touch+0x9c/0xfe
[  283.426817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.432362]  ? check_preemption_disabled+0x48/0x280
[  283.437388]  ? __lock_is_held+0xb5/0x140
[  283.441455]  __alloc_pages_nodemask+0xa80/0xde0
[  283.446125]  ? zap_class+0x640/0x640
[  283.449844]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  283.454931]  ? find_held_lock+0x36/0x1c0
[  283.459004]  ? ____cache_alloc_node+0x1c7/0x1e0
[  283.463678]  ? lock_downgrade+0x900/0x900
[  283.467844]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.473398]  cache_grow_begin+0xa5/0x8c0
[  283.477481]  ? do_raw_spin_unlock+0xa7/0x330
[  283.481914]  fallback_alloc+0x204/0x2e0
[  283.485904]  ____cache_alloc_node+0x1c7/0x1e0
[  283.490405]  kmem_cache_alloc_node+0xe3/0x730
[  283.494904]  ? ipv6_get_ifaddr+0x42e/0x620
[  283.499167]  __alloc_skb+0x119/0x770
[  283.502885]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.508194]  ? netdev_alloc_frag+0x1f0/0x1f0
[  283.512602]  ? lock_downgrade+0x900/0x900
[  283.516756]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.522296]  ? refcount_sub_and_test_checked+0x203/0x310
[  283.527754]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  283.533217]  ? addrconf_rs_timer+0x690/0x690
[  283.537639]  ndisc_alloc_skb+0x144/0x340
[  283.541709]  ndisc_send_rs+0x331/0x6e0
[  283.545644]  addrconf_rs_timer+0x314/0x690
[  283.549910]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.554157]  call_timer_fn+0x272/0x920
[  283.558045]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.562280]  ? process_timeout+0x40/0x40
[  283.566350]  ? mark_held_locks+0xc7/0x130
[  283.570508]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.575005]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.579499]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.583749]  ? lockdep_hardirqs_on+0x296/0x5b0
[  283.588344]  ? trace_hardirqs_on+0xbd/0x310
[  283.592671]  ? kasan_check_read+0x11/0x20
[  283.596820]  ? __run_timers+0x7da/0xc70
[  283.600806]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.605923]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.610161]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.614417]  __run_timers+0x7e5/0xc70
[  283.618221]  ? timer_fixup_init+0x70/0x70
[  283.622366]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  283.627398]  ? zap_class+0x640/0x640
[  283.631125]  ? print_usage_bug+0xc0/0xc0
[  283.635228]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  283.640418]  ? find_held_lock+0x36/0x1c0
[  283.644480]  ? zap_class+0x640/0x640
[  283.648195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.653732]  ? check_preemption_disabled+0x48/0x280
[  283.658751]  ? __lock_is_held+0xb5/0x140
[  283.662807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.668361]  ? check_preemption_disabled+0x48/0x280
[  283.673380]  run_timer_softirq+0x52/0xb0
[  283.677477]  ? rcu_read_lock_sched_held+0x14f/0x180
[  283.682504]  __do_softirq+0x308/0xb7e
[  283.686332]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  283.690871]  ? lock_downgrade+0x900/0x900
[  283.695046]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  283.700174]  ? pvclock_read_flags+0x160/0x160
[  283.704675]  ? lapic_next_event+0x5a/0x90
[  283.708834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.714374]  ? kvm_clock_read+0x18/0x30
[  283.718346]  ? kvm_sched_clock_read+0x9/0x20
[  283.722753]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.728289]  ? check_preemption_disabled+0x48/0x280
[  283.733310]  irq_exit+0x17f/0x1c0
[  283.736764]  smp_apic_timer_interrupt+0x1cb/0x760
[  283.741613]  ? smp_reschedule_interrupt+0x109/0x650
[  283.746742]  ? smp_call_function_single_interrupt+0x650/0x650
[  283.752633]  ? interrupt_entry+0xb5/0xc0
[  283.756696]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.761703]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.766732]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.771573]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.776595]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.781619]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.786466]  apic_timer_interrupt+0xf/0x20
[  283.790712]  </IRQ>
[  283.792949] RIP: 0010:dump_stack+0x358/0x39d
[  283.797359] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  283.816254] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  283.823976] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  283.831241] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  283.838525] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  283.845794] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  283.853061] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  283.860341]  ? dump_stack+0x34f/0x39d
[  283.864155]  ? dump_stack_print_info.cold.1+0x20/0x20
[  283.869361]  ? mark_held_locks+0x130/0x130
[  283.874066]  ? mark_held_locks+0x130/0x130
[  283.878319]  dump_header+0x27b/0xf72
[  283.882045]  ? pagefault_out_of_memory+0x197/0x197
[  283.886995]  ? __lock_acquire+0x62f/0x4c20
[  283.891232]  ? percpu_ref_get_many+0x240/0x240
[  283.895820]  ? print_usage_bug+0xc0/0xc0
[  283.899910]  ? zap_class+0x640/0x640
[  283.903624]  ? print_usage_bug+0xc0/0xc0
[  283.907690]  ? print_usage_bug+0xc0/0xc0
[  283.911756]  ? zap_class+0x640/0x640
[  283.915494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.921034]  ? find_held_lock+0x36/0x1c0
[  283.925102]  ? mark_held_locks+0xc7/0x130
[  283.929250]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  283.934354]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  283.939457]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  283.944035]  ? trace_hardirqs_on+0xbd/0x310
[  283.948355]  ? kasan_check_read+0x11/0x20
[  283.952518]  ? ___ratelimit+0x3b4/0x672
[  283.956504]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.961634]  ? trace_hardirqs_on+0x310/0x310
[  283.966069]  ? lock_downgrade+0x900/0x900
[  283.970224]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  283.975346]  ? ___ratelimit+0x3b9/0x672
[  283.979327]  ? idr_get_free+0xf70/0xf70
[  283.983301]  ? find_held_lock+0x36/0x1c0
[  283.987370]  oom_kill_process.cold.27+0x10/0x903
[  283.992128]  ? zap_class+0x640/0x640
[  283.995845]  ? check_preemption_disabled+0x48/0x280
[  284.000883]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  284.005817]  ? kasan_check_read+0x11/0x20
[  284.010001]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.015275]  ? oom_evaluate_task+0x540/0x540
[  284.019691]  ? find_held_lock+0x36/0x1c0
[  284.023764]  ? out_of_memory+0x974/0x1430
[  284.027914]  ? lock_downgrade+0x900/0x900
[  284.032064]  ? check_preemption_disabled+0x48/0x280
[  284.037081]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  284.042011]  ? kasan_check_read+0x11/0x20
[  284.046167]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.051445]  ? rcu_softirq_qs+0x20/0x20
[  284.055455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.060991]  ? oom_evaluate_task+0x302/0x540
[  284.065402]  out_of_memory+0xa84/0x1430
[  284.069401]  ? oom_killer_disable+0x3a0/0x3a0
[  284.073912]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  284.078844]  ? __ww_mutex_check_waiters+0x160/0x160
[  284.083893]  __alloc_pages_slowpath+0x2354/0x2e10
[  284.088765]  ? warn_alloc+0x120/0x120
[  284.092565]  ? mark_held_locks+0x130/0x130
[  284.096805]  ? find_get_entry+0xaae/0x1120
[  284.101067]  ? filemap_map_pages+0x1a20/0x1a20
[  284.105651]  ? zap_class+0x640/0x640
[  284.109419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.114952]  ? check_preemption_disabled+0x48/0x280
[  284.119964]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.125512]  ? should_fail+0x22d/0xd01
[  284.129416]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.134546]  ? zap_class+0x640/0x640
[  284.138283]  ? __lock_is_held+0xb5/0x140
[  284.142348]  ? mark_held_locks+0x130/0x130
[  284.146594]  ? lock_release+0xa00/0xa00
[  284.150561]  ? perf_trace_sched_process_exec+0x860/0x860
[  284.156005]  ? xa_load+0x2ba/0x460
[  284.159537]  ? lock_downgrade+0x900/0x900
[  284.163685]  ? __might_sleep+0x95/0x190
[  284.167671]  __alloc_pages_nodemask+0xa80/0xde0
[  284.172370]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  284.177388]  ? __page_cache_alloc+0x191/0x5c0
[  284.181886]  ? xa_load+0x2e1/0x460
[  284.185421]  ? xa_clear_mark+0x40/0x40
[  284.189303]  ? zap_class+0x640/0x640
[  284.193034]  ? zap_class+0x640/0x640
[  284.196741]  ? zap_class+0x640/0x640
[  284.200444]  ? __do_page_cache_readahead+0x663/0x810
[  284.205545]  ? find_held_lock+0x36/0x1c0
[  284.209635]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  284.215188]  alloc_pages_current+0x173/0x350
[  284.219591]  __page_cache_alloc+0x38c/0x5c0
[  284.223913]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  284.228849]  ? kasan_check_read+0x11/0x20
[  284.233007]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.238282]  ? generic_perform_write+0x6a0/0x6a0
[  284.243052]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.248647]  ? check_preemption_disabled+0x48/0x280
[  284.253693]  filemap_fault+0x1595/0x25f0
[  284.257805]  ? __lock_page_or_retry+0xa00/0xa00
[  284.262470]  ? mark_held_locks+0x130/0x130
[  284.266702]  ? filemap_map_pages+0xd6b/0x1a20
[  284.271194]  ? lock_downgrade+0x900/0x900
[  284.275338]  ? check_preemption_disabled+0x48/0x280
[  284.280349]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  284.285274]  ? kasan_check_read+0x11/0x20
[  284.289436]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.294704]  ? rcu_softirq_qs+0x20/0x20
[  284.298688]  ? filemap_map_pages+0xd92/0x1a20
[  284.303200]  ? print_usage_bug+0xc0/0xc0
[  284.307301]  ? find_get_entries_tag+0x1400/0x1400
[  284.312141]  ? __kasan_slab_free+0x102/0x150
[  284.316541]  ? kasan_slab_free+0xe/0x10
[  284.320508]  ? kmem_cache_free+0x83/0x290
[  284.324651]  ? __sigqueue_free.part.29+0x74/0x90
[  284.329418]  ? lock_acquire+0x1ed/0x520
[  284.333384]  ? ext4_filemap_fault+0x7a/0xad
[  284.337726]  ? lock_release+0xa00/0xa00
[  284.341691]  ? perf_trace_sched_process_exec+0x860/0x860
[  284.347178]  ? print_usage_bug+0xc0/0xc0
[  284.351248]  ? print_usage_bug+0xc0/0xc0
[  284.355336]  ? down_read+0x8d/0x120
[  284.358954]  ? ext4_filemap_fault+0x7a/0xad
[  284.363266]  ? __down_interruptible+0x700/0x700
[  284.367933]  ext4_filemap_fault+0x82/0xad
[  284.372090]  __do_fault+0x100/0x6b0
[  284.375722]  ? pmd_devmap_trans_unstable+0x220/0x220
[  284.380849]  ? mark_held_locks+0x130/0x130
[  284.385083]  ? mark_held_locks+0x130/0x130
[  284.389348]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  284.394886]  ? rcu_pm_notify+0xc0/0xc0
[  284.398777]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.404338]  __handle_mm_fault+0x3ea0/0x5be0
[  284.408754]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  284.413592]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.418100]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  284.422681]  ? trace_hardirqs_on+0xbd/0x310
[  284.427001]  ? kasan_check_read+0x11/0x20
[  284.431148]  ? __set_current_blocked+0xdf/0x120
[  284.435815]  ? trace_hardirqs_off_caller+0x310/0x310
[  284.440926]  ? zap_class+0x640/0x640
[  284.444637]  ? zap_class+0x640/0x640
[  284.448378]  ? find_held_lock+0x36/0x1c0
[  284.452443]  ? handle_mm_fault+0x42a/0xc70
[  284.456690]  ? lock_downgrade+0x900/0x900
[  284.460831]  ? check_preemption_disabled+0x48/0x280
[  284.465848]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  284.470777]  ? kasan_check_read+0x11/0x20
[  284.474936]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.480215]  ? rcu_softirq_qs+0x20/0x20
[  284.484188]  ? trace_hardirqs_off_caller+0x310/0x310
[  284.489290]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.494831]  ? check_preemption_disabled+0x48/0x280
[  284.499853]  handle_mm_fault+0x54f/0xc70
[  284.503935]  ? __handle_mm_fault+0x5be0/0x5be0
[  284.508516]  ? find_vma+0x34/0x190
[  284.512073]  __do_page_fault+0x5e8/0xe60
[  284.516131]  ? exit_to_usermode_loop+0x1f4/0x380
[  284.520936]  do_page_fault+0xf2/0x7e0
[  284.524739]  ? vmalloc_sync_all+0x30/0x30
[  284.528889]  ? error_entry+0x70/0xd0
[  284.532601]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.537609]  ? trace_hardirqs_on_caller+0xc0/0x310
[  284.542549]  ? syscall_return_slowpath+0x5e0/0x5e0
[  284.547487]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.552335]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.557341]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  284.562792]  ? prepare_exit_to_usermode+0x291/0x3b0
[  284.567802]  ? page_fault+0x8/0x30
[  284.571337]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.576176]  ? page_fault+0x8/0x30
[  284.579710]  page_fault+0x1e/0x30
[  284.583184] RIP: 0033:0x45db60
[  284.586395] Code: Bad RIP value.
[  284.589764] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  284.595149] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  284.602409] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  284.609669] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  284.616932] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  284.624210] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  284.631511] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  284.631515] warn_alloc_show_mem: 1 callbacks suppressed
[  284.631522] Mem-Info:
[  284.638787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  284.644165] active_anon:54051 inactive_anon:192 isolated_anon:0
[  284.644165]  active_file:9 inactive_file:20 isolated_file:0
[  284.644165]  unevictable:0 dirty:0 writeback:0 unstable:0
[  284.644165]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  284.644165]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  284.644165]  free:13735 free_pcp:540 free_cma:0
[  284.646537] Call Trace:
[  284.655917] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  284.688668]  <IRQ>
[  284.691263] 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
[  284.718699]  dump_stack+0x244/0x39d
[  284.720816] lowmem_reserve[]: 0 2818 6321 6321
[  284.747144]  ? dump_stack_print_info.cold.1+0x20/0x20
[  284.750752] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  284.755339]  warn_alloc.cold.116+0xb7/0x1bd
[  284.760522] lowmem_reserve[]: 0 0 3503 3503
[  284.788273]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  284.792581] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  284.796893]  ? lock_downgrade+0x900/0x900
[  284.801710] lowmem_reserve[]: 0 0 0 0
[  284.830764]  ? trace_hardirqs_off+0xb8/0x310
[  284.834920] 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
[  284.838718]  ? trace_hardirqs_off+0xb8/0x310
[  284.843097] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  284.856614]  __alloc_pages_slowpath+0x26e8/0x2e10
[  284.860995] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  284.876266]  ? warn_alloc+0x120/0x120
[  284.881070] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  284.895191]  ? print_usage_bug+0xc0/0xc0
[  284.898972] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  284.907788]  ? warn_alloc+0x120/0x120
[  284.911820] 273 total pagecache pages
[  284.920383]  ? warn_alloc+0x120/0x120
[  284.924163] 0 pages in swap cache
[  284.927953]  ? print_usage_bug+0xc0/0xc0
[  284.931728] Swap cache stats: add 0, delete 0, find 0/0
[  284.931736] Free swap  = 0kB
[  284.935179]  ? print_usage_bug+0xc0/0xc0
[  284.939213] Total swap = 0kB
[  284.944580]  ? __lock_acquire+0x62f/0x4c20
[  284.947567] 1965979 pages RAM
[  284.951617]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.954605] 0 pages HighMem/MovableOnly
[  284.958827]  ? should_fail+0x22d/0xd01
[  284.961905] 342853 pages reserved
[  284.967438]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.971377] 0 pages cma reserved
[  284.975246]  ? __lock_acquire+0x62f/0x4c20
[  284.978723] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  284.983755]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.983766]  ? __lock_acquire+0x62f/0x4c20
[  284.983780]  ? should_fail+0x22d/0xd01
[  284.987185] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  284.991354]  ? mark_held_locks+0x130/0x130
[  284.997829] syz-fuzzer cpuset=/ mems_allowed=0
[  285.002918]  ? mark_held_locks+0x130/0x130
[  285.034227]  ? zap_class+0x640/0x640
[  285.037941]  ? zap_class+0x640/0x640
[  285.041648]  ? print_usage_bug+0xc0/0xc0
[  285.045700]  ? wq_watchdog_touch+0x9c/0xfe
[  285.049953]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.055503]  ? check_preemption_disabled+0x48/0x280
[  285.060518]  ? __lock_is_held+0xb5/0x140
[  285.064617]  __alloc_pages_nodemask+0xa80/0xde0
[  285.069401]  ? zap_class+0x640/0x640
[  285.073145]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  285.078175]  ? find_held_lock+0x36/0x1c0
[  285.082239]  ? ____cache_alloc_node+0x1c7/0x1e0
[  285.086906]  ? lock_downgrade+0x900/0x900
[  285.091060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.096619]  cache_grow_begin+0xa5/0x8c0
[  285.100690]  ? do_raw_spin_unlock+0xa7/0x330
[  285.105099]  fallback_alloc+0x204/0x2e0
[  285.109074]  ____cache_alloc_node+0x1c7/0x1e0
[  285.113570]  kmem_cache_alloc_node+0xe3/0x730
[  285.118059]  ? ipv6_get_ifaddr+0x42e/0x620
[  285.122300]  __alloc_skb+0x119/0x770
[  285.126012]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.131302]  ? netdev_alloc_frag+0x1f0/0x1f0
[  285.135708]  ? lock_downgrade+0x900/0x900
[  285.139857]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.145431]  ? refcount_sub_and_test_checked+0x203/0x310
[  285.150910]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  285.156402]  ? addrconf_rs_timer+0x690/0x690
[  285.160816]  ndisc_alloc_skb+0x144/0x340
[  285.164878]  ndisc_send_rs+0x331/0x6e0
[  285.168766]  addrconf_rs_timer+0x314/0x690
[  285.173000]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.177251]  call_timer_fn+0x272/0x920
[  285.181130]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.185376]  ? process_timeout+0x40/0x40
[  285.189438]  ? __run_timers+0x7da/0xc70
[  285.193428]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.197920]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.202434]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.206689]  ? lockdep_hardirqs_on+0x296/0x5b0
[  285.211267]  ? trace_hardirqs_on+0xbd/0x310
[  285.215583]  ? kasan_check_read+0x11/0x20
[  285.219725]  ? __run_timers+0x7da/0xc70
[  285.223746]  ? trace_hardirqs_off_caller+0x310/0x310
[  285.228922]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.233180]  __run_timers+0x7e5/0xc70
[  285.236986]  ? timer_fixup_init+0x70/0x70
[  285.241126]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  285.246148]  ? zap_class+0x640/0x640
[  285.249869]  ? enqueue_hrtimer+0x1a5/0x560
[  285.254272]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  285.259473]  ? find_held_lock+0x36/0x1c0
[  285.263525]  ? zap_class+0x640/0x640
[  285.267233]  ? pvclock_read_flags+0x160/0x160
[  285.271720]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.277261]  ? check_preemption_disabled+0x48/0x280
[  285.282287]  ? __lock_is_held+0xb5/0x140
[  285.286382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.291913]  ? check_preemption_disabled+0x48/0x280
[  285.296926]  run_timer_softirq+0x52/0xb0
[  285.300983]  ? rcu_read_lock_sched_held+0x14f/0x180
[  285.305993]  __do_softirq+0x308/0xb7e
[  285.309792]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  285.314277]  ? lock_downgrade+0x900/0x900
[  285.318423]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  285.323534]  ? pvclock_read_flags+0x160/0x160
[  285.328028]  ? lapic_next_event+0x5a/0x90
[  285.332226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.337793]  ? kvm_clock_read+0x18/0x30
[  285.341762]  ? kvm_sched_clock_read+0x9/0x20
[  285.346193]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.351753]  ? check_preemption_disabled+0x48/0x280
[  285.356788]  irq_exit+0x17f/0x1c0
[  285.360238]  smp_apic_timer_interrupt+0x1cb/0x760
[  285.365071]  ? smp_reschedule_interrupt+0x109/0x650
[  285.370082]  ? smp_call_function_single_interrupt+0x650/0x650
[  285.375955]  ? interrupt_entry+0xb5/0xc0
[  285.380005]  ? trace_hardirqs_off_caller+0xbb/0x310
[  285.385014]  ? trace_hardirqs_off_caller+0xbb/0x310
[  285.390041]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.394914]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.399970]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.404978]  ? task_prio+0x50/0x50
[  285.408528]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.414057]  ? check_preemption_disabled+0x48/0x280
[  285.419073]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.423913]  apic_timer_interrupt+0xf/0x20
[  285.428182]  </IRQ>
[  285.430417] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  285.435355] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  285.454275] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  285.461975] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  285.469237] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  285.476499] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  285.483792] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  285.491065] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  285.498359]  skb_clone+0x1bb/0x500
[  285.501893]  ? finish_task_switch+0x2f4/0x910
[  285.506381]  ? skb_split+0x11e0/0x11e0
[  285.510295]  ? preempt_notifier_register+0x200/0x200
[  285.515404]  ? __switch_to_asm+0x34/0x70
[  285.519466]  ? __switch_to_asm+0x34/0x70
[  285.523522]  ? __switch_to_asm+0x40/0x70
[  285.527573]  ? __switch_to_asm+0x34/0x70
[  285.531628]  ? __switch_to_asm+0x40/0x70
[  285.535680]  ? __switch_to_asm+0x34/0x70
[  285.539736]  ? __switch_to_asm+0x40/0x70
[  285.543793]  ? __switch_to_asm+0x34/0x70
[  285.547854]  ? __switch_to_asm+0x34/0x70
[  285.551920]  ? __switch_to_asm+0x40/0x70
[  285.555974]  ? __switch_to_asm+0x34/0x70
[  285.560049]  bpf_clone_redirect+0xb9/0x490
[  285.564306]  ? __schedule+0x8d7/0x21d0
[  285.568208]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  285.573242]  ? __sched_text_start+0x8/0x8
[  285.577397]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  285.582172]  ? find_held_lock+0x36/0x1c0
[  285.586239]  ? lock_acquire+0x1ed/0x520
[  285.590229]  ? bpf_test_run+0x3cb/0x780
[  285.594224]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.599764]  ? check_preemption_disabled+0x48/0x280
[  285.604786]  ? kasan_check_read+0x11/0x20
[  285.608935]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.614213]  ? rcu_softirq_qs+0x20/0x20
[  285.618191]  ? preempt_schedule+0x4d/0x60
[  285.622349]  ? ___preempt_schedule+0x16/0x18
[  285.626766]  ? bpf_test_run+0x25d/0x780
[  285.630768]  ? netlink_diag_dump+0x2a0/0x2a0
[  285.635185]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.640721]  ? bpf_test_init.isra.10+0x70/0x100
[  285.645397]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  285.650171]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  285.655014]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  285.660552]  ? fput+0x130/0x1a0
[  285.663854]  ? __bpf_prog_get+0x9b/0x290
[  285.667925]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  285.672767]  ? bpf_prog_test_run+0x130/0x1a0
[  285.677180]  ? __x64_sys_bpf+0x3d8/0x520
[  285.681241]  ? bpf_prog_get+0x20/0x20
[  285.685169]  ? do_syscall_64+0x1b9/0x820
[  285.689249]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  285.694622]  ? syscall_return_slowpath+0x5e0/0x5e0
[  285.699552]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.704582]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  285.709615]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  285.716280]  ? __switch_to_asm+0x40/0x70
[  285.720353]  ? __switch_to_asm+0x34/0x70
[  285.724419]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.729272]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  285.734662] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  285.734726] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  285.741812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  285.741815] Call Trace:
[  285.741820]  <IRQ>
[  285.741832]  dump_stack+0x244/0x39d
[  285.741842]  ? dump_stack_print_info.cold.1+0x20/0x20
[  285.741857]  warn_alloc.cold.116+0xb7/0x1bd
[  285.741881]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  285.741897]  ? lock_downgrade+0x900/0x900
[  285.748456] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  285.757730]  ? trace_hardirqs_off+0xb8/0x310
[  285.760306] syz-executor3 cpuset=syz3 mems_allowed=0
[  285.762451]  ? trace_hardirqs_off+0xb8/0x310
[  285.808857]  __alloc_pages_slowpath+0x26e8/0x2e10
[  285.813732]  ? warn_alloc+0x120/0x120
[  285.817540]  ? print_usage_bug+0xc0/0xc0
[  285.821604]  ? warn_alloc+0x120/0x120
[  285.825423]  ? warn_alloc+0x120/0x120
[  285.829224]  ? print_usage_bug+0xc0/0xc0
[  285.833290]  ? print_usage_bug+0xc0/0xc0
[  285.837358]  ? __lock_acquire+0x62f/0x4c20
[  285.841603]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.847140]  ? should_fail+0x22d/0xd01
[  285.851030]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  285.856136]  ? __lock_acquire+0x62f/0x4c20
[  285.860403]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  285.865500]  ? __lock_acquire+0x62f/0x4c20
[  285.869735]  ? should_fail+0x22d/0xd01
[  285.874066]  ? find_held_lock+0x36/0x1c0
[  285.878153]  ? mark_held_locks+0x130/0x130
[  285.882420]  ? mark_held_locks+0x130/0x130
[  285.886667]  ? zap_class+0x640/0x640
[  285.890389]  ? zap_class+0x640/0x640
[  285.894103]  ? print_usage_bug+0xc0/0xc0
[  285.898161]  ? do_raw_spin_unlock+0xa7/0x330
[  285.902588]  ? zap_class+0x640/0x640
[  285.906317]  ? print_usage_bug+0xc0/0xc0
[  285.910392]  ? wq_watchdog_touch+0x9c/0xfe
[  285.914628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.920169]  ? check_preemption_disabled+0x48/0x280
[  285.925196]  ? __lock_is_held+0xb5/0x140
[  285.929263]  __alloc_pages_nodemask+0xa80/0xde0
[  285.933929]  ? zap_class+0x640/0x640
[  285.937686]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  285.942704]  ? find_held_lock+0x36/0x1c0
[  285.946782]  ? ____cache_alloc_node+0x1c7/0x1e0
[  285.951457]  ? lock_downgrade+0x900/0x900
[  285.955600]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.961133]  cache_grow_begin+0xa5/0x8c0
[  285.965209]  ? do_raw_spin_unlock+0xa7/0x330
[  285.969617]  fallback_alloc+0x204/0x2e0
[  285.973602]  ____cache_alloc_node+0x1c7/0x1e0
[  285.978095]  kmem_cache_alloc_node+0xe3/0x730
[  285.982580]  ? ipv6_get_ifaddr+0x42e/0x620
[  285.986827]  __alloc_skb+0x119/0x770
[  285.990562]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.995838]  ? netdev_alloc_frag+0x1f0/0x1f0
[  286.000245]  ? lock_downgrade+0x900/0x900
[  286.004391]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.009916]  ? refcount_sub_and_test_checked+0x203/0x310
[  286.015359]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  286.020815]  ? addrconf_rs_timer+0x690/0x690
[  286.025259]  ndisc_alloc_skb+0x144/0x340
[  286.029330]  ndisc_send_rs+0x331/0x6e0
[  286.033271]  addrconf_rs_timer+0x314/0x690
[  286.037531]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.041762]  call_timer_fn+0x272/0x920
[  286.045648]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.049897]  ? process_timeout+0x40/0x40
[  286.053954]  ? mark_held_locks+0xc7/0x130
[  286.058099]  ? _raw_spin_unlock_irq+0x27/0x80
[  286.062594]  ? _raw_spin_unlock_irq+0x27/0x80
[  286.067089]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.071312]  ? lockdep_hardirqs_on+0x296/0x5b0
[  286.075904]  ? trace_hardirqs_on+0xbd/0x310
[  286.080228]  ? kasan_check_read+0x11/0x20
[  286.084362]  ? __run_timers+0x7da/0xc70
[  286.088343]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.093468]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.097701]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.101939]  __run_timers+0x7e5/0xc70
[  286.105739]  ? timer_fixup_init+0x70/0x70
[  286.109883]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  286.114892]  ? zap_class+0x640/0x640
[  286.118601]  ? print_usage_bug+0xc0/0xc0
[  286.122673]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  286.127867]  ? find_held_lock+0x36/0x1c0
[  286.131926]  ? zap_class+0x640/0x640
[  286.135654]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.141203]  ? check_preemption_disabled+0x48/0x280
[  286.146220]  ? __lock_is_held+0xb5/0x140
[  286.150275]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.155805]  ? check_preemption_disabled+0x48/0x280
[  286.160832]  run_timer_softirq+0x52/0xb0
[  286.164893]  ? rcu_read_lock_sched_held+0x14f/0x180
[  286.169903]  __do_softirq+0x308/0xb7e
[  286.173702]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  286.178190]  ? lock_downgrade+0x900/0x900
[  286.182352]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  286.187489]  ? pvclock_read_flags+0x160/0x160
[  286.191983]  ? lapic_next_event+0x5a/0x90
[  286.196146]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.201700]  ? kvm_clock_read+0x18/0x30
[  286.205670]  ? kvm_sched_clock_read+0x9/0x20
[  286.210078]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.215637]  ? check_preemption_disabled+0x48/0x280
[  286.220678]  irq_exit+0x17f/0x1c0
[  286.224123]  smp_apic_timer_interrupt+0x1cb/0x760
[  286.228969]  ? smp_reschedule_interrupt+0x109/0x650
[  286.233978]  ? smp_call_function_single_interrupt+0x650/0x650
[  286.239853]  ? interrupt_entry+0xb5/0xc0
[  286.243926]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.248960]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.253970]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.258805]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.263815]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.268835]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.273713]  apic_timer_interrupt+0xf/0x20
[  286.277930]  </IRQ>
[  286.280159] RIP: 0010:dump_stack+0x358/0x39d
[  286.284590] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  286.303479] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  286.311175] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  286.318480] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  286.325753] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  286.333037] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  286.340295] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  286.347570]  ? dump_stack+0x34f/0x39d
[  286.351376]  ? dump_stack_print_info.cold.1+0x20/0x20
[  286.356560]  ? mark_held_locks+0x130/0x130
[  286.360784]  ? mark_held_locks+0x130/0x130
[  286.365017]  dump_header+0x27b/0xf72
[  286.368732]  ? pagefault_out_of_memory+0x197/0x197
[  286.373662]  ? __lock_acquire+0x62f/0x4c20
[  286.377906]  ? percpu_ref_get_many+0x240/0x240
[  286.382485]  ? print_usage_bug+0xc0/0xc0
[  286.386559]  ? zap_class+0x640/0x640
[  286.390267]  ? print_usage_bug+0xc0/0xc0
[  286.394332]  ? print_usage_bug+0xc0/0xc0
[  286.398388]  ? zap_class+0x640/0x640
[  286.402097]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.407626]  ? find_held_lock+0x36/0x1c0
[  286.411702]  ? mark_held_locks+0xc7/0x130
[  286.415855]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  286.420958]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  286.426067]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  286.430643]  ? trace_hardirqs_on+0xbd/0x310
[  286.434978]  ? kasan_check_read+0x11/0x20
[  286.439120]  ? ___ratelimit+0x3b4/0x672
[  286.443087]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.448206]  ? trace_hardirqs_on+0x310/0x310
[  286.452644]  ? lock_downgrade+0x900/0x900
[  286.456815]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  286.461912]  ? ___ratelimit+0x3b9/0x672
[  286.465889]  ? idr_get_free+0xf70/0xf70
[  286.469869]  ? find_held_lock+0x36/0x1c0
[  286.473939]  oom_kill_process.cold.27+0x10/0x903
[  286.478691]  ? zap_class+0x640/0x640
[  286.482399]  ? check_preemption_disabled+0x48/0x280
[  286.487416]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.492360]  ? kasan_check_read+0x11/0x20
[  286.496517]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.501812]  ? oom_evaluate_task+0x540/0x540
[  286.506225]  ? find_held_lock+0x36/0x1c0
[  286.510290]  ? out_of_memory+0x974/0x1430
[  286.514446]  ? lock_downgrade+0x900/0x900
[  286.518623]  ? check_preemption_disabled+0x48/0x280
[  286.523640]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.528574]  ? kasan_check_read+0x11/0x20
[  286.532718]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.537997]  ? rcu_softirq_qs+0x20/0x20
[  286.541973]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.547505]  ? oom_evaluate_task+0x302/0x540
[  286.551928]  out_of_memory+0xa84/0x1430
[  286.555906]  ? oom_killer_disable+0x3a0/0x3a0
[  286.560430]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  286.565358]  ? __ww_mutex_check_waiters+0x160/0x160
[  286.570399]  __alloc_pages_slowpath+0x2354/0x2e10
[  286.575272]  ? warn_alloc+0x120/0x120
[  286.579078]  ? mark_held_locks+0x130/0x130
[  286.583328]  ? find_get_entry+0xaae/0x1120
[  286.587585]  ? filemap_map_pages+0x1a20/0x1a20
[  286.592188]  ? zap_class+0x640/0x640
[  286.595922]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.601463]  ? check_preemption_disabled+0x48/0x280
[  286.606479]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.612013]  ? should_fail+0x22d/0xd01
[  286.615921]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.621028]  ? zap_class+0x640/0x640
[  286.624759]  ? __lock_is_held+0xb5/0x140
[  286.628823]  ? mark_held_locks+0x130/0x130
[  286.633082]  ? lock_release+0xa00/0xa00
[  286.637055]  ? perf_trace_sched_process_exec+0x860/0x860
[  286.642499]  ? xa_load+0x2ba/0x460
[  286.646038]  ? lock_downgrade+0x900/0x900
[  286.650183]  ? __might_sleep+0x95/0x190
[  286.654170]  __alloc_pages_nodemask+0xa80/0xde0
[  286.658857]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  286.663909]  ? __page_cache_alloc+0x191/0x5c0
[  286.668414]  ? xa_load+0x2e1/0x460
[  286.671981]  ? xa_clear_mark+0x40/0x40
[  286.675882]  ? zap_class+0x640/0x640
[  286.679616]  ? zap_class+0x640/0x640
[  286.683324]  ? zap_class+0x640/0x640
[  286.687030]  ? __do_page_cache_readahead+0x663/0x810
[  286.692132]  ? find_held_lock+0x36/0x1c0
[  286.696190]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  286.701747]  alloc_pages_current+0x173/0x350
[  286.706153]  __page_cache_alloc+0x38c/0x5c0
[  286.710470]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.715394]  ? kasan_check_read+0x11/0x20
[  286.719534]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.724822]  ? generic_perform_write+0x6a0/0x6a0
[  286.729571]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.735104]  ? check_preemption_disabled+0x48/0x280
[  286.740124]  filemap_fault+0x1595/0x25f0
[  286.744192]  ? __lock_page_or_retry+0xa00/0xa00
[  286.748894]  ? mark_held_locks+0x130/0x130
[  286.753146]  ? filemap_map_pages+0xd6b/0x1a20
[  286.757652]  ? lock_downgrade+0x900/0x900
[  286.761812]  ? check_preemption_disabled+0x48/0x280
[  286.766826]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.771746]  ? kasan_check_read+0x11/0x20
[  286.775891]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.781197]  ? rcu_softirq_qs+0x20/0x20
[  286.785225]  ? filemap_map_pages+0xd92/0x1a20
[  286.789716]  ? print_usage_bug+0xc0/0xc0
[  286.793776]  ? find_get_entries_tag+0x1400/0x1400
[  286.798614]  ? __kasan_slab_free+0x102/0x150
[  286.803031]  ? kasan_slab_free+0xe/0x10
[  286.807000]  ? kmem_cache_free+0x83/0x290
[  286.811139]  ? __sigqueue_free.part.29+0x74/0x90
[  286.815909]  ? lock_acquire+0x1ed/0x520
[  286.819880]  ? ext4_filemap_fault+0x7a/0xad
[  286.824215]  ? lock_release+0xa00/0xa00
[  286.828213]  ? perf_trace_sched_process_exec+0x860/0x860
[  286.833693]  ? print_usage_bug+0xc0/0xc0
[  286.837764]  ? print_usage_bug+0xc0/0xc0
[  286.841824]  ? down_read+0x8d/0x120
[  286.845435]  ? ext4_filemap_fault+0x7a/0xad
[  286.849745]  ? __down_interruptible+0x700/0x700
[  286.854429]  ext4_filemap_fault+0x82/0xad
[  286.858570]  __do_fault+0x100/0x6b0
[  286.862226]  ? pmd_devmap_trans_unstable+0x220/0x220
[  286.867347]  ? mark_held_locks+0x130/0x130
[  286.871573]  ? mark_held_locks+0x130/0x130
[  286.875795]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  286.881337]  ? rcu_pm_notify+0xc0/0xc0
[  286.885234]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.890769]  __handle_mm_fault+0x3ea0/0x5be0
[  286.895178]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  286.900026]  ? _raw_spin_unlock_irq+0x27/0x80
[  286.904512]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  286.909087]  ? trace_hardirqs_on+0xbd/0x310
[  286.913398]  ? kasan_check_read+0x11/0x20
[  286.917534]  ? __set_current_blocked+0xdf/0x120
[  286.922210]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.927336]  ? zap_class+0x640/0x640
[  286.931056]  ? zap_class+0x640/0x640
[  286.934766]  ? find_held_lock+0x36/0x1c0
[  286.938834]  ? handle_mm_fault+0x42a/0xc70
[  286.943071]  ? lock_downgrade+0x900/0x900
[  286.947212]  ? check_preemption_disabled+0x48/0x280
[  286.952222]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.957159]  ? kasan_check_read+0x11/0x20
[  286.961297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.966582]  ? rcu_softirq_qs+0x20/0x20
[  286.970558]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.975660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.981217]  ? check_preemption_disabled+0x48/0x280
[  286.986261]  handle_mm_fault+0x54f/0xc70
[  286.990346]  ? __handle_mm_fault+0x5be0/0x5be0
[  286.994923]  ? find_vma+0x34/0x190
[  286.998460]  __do_page_fault+0x5e8/0xe60
[  287.002513]  ? exit_to_usermode_loop+0x1f4/0x380
[  287.007269]  do_page_fault+0xf2/0x7e0
[  287.011111]  ? vmalloc_sync_all+0x30/0x30
[  287.015300]  ? error_entry+0x70/0xd0
[  287.019036]  ? trace_hardirqs_off_caller+0xbb/0x310
[  287.024057]  ? trace_hardirqs_on_caller+0xc0/0x310
[  287.028978]  ? syscall_return_slowpath+0x5e0/0x5e0
[  287.033902]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.038739]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.043746]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  287.049203]  ? prepare_exit_to_usermode+0x291/0x3b0
[  287.054224]  ? page_fault+0x8/0x30
[  287.057765]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.062649]  ? page_fault+0x8/0x30
[  287.066206]  page_fault+0x1e/0x30
[  287.069671] RIP: 0033:0x45db60
[  287.072878] Code: Bad RIP value.
[  287.076235] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  287.081591] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  287.088874] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  287.096204] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  287.103482] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  287.110747] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  287.118035] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  287.118040] warn_alloc_show_mem: 1 callbacks suppressed
[  287.118047] Mem-Info:
[  287.125314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  287.130684] active_anon:54051 inactive_anon:192 isolated_anon:0
[  287.130684]  active_file:9 inactive_file:20 isolated_file:0
[  287.130684]  unevictable:0 dirty:0 writeback:0 unstable:0
[  287.130684]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  287.130684]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  287.130684]  free:13735 free_pcp:540 free_cma:0
[  287.133047] Call Trace:
[  287.142434] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  287.175202]  <IRQ>
[  287.177773] 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
[  287.205181]  dump_stack+0x244/0x39d
[  287.207309] lowmem_reserve[]: 0 2818 6321 6321
[  287.233414]  ? dump_stack_print_info.cold.1+0x20/0x20
[  287.237025] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  287.241611]  warn_alloc.cold.116+0xb7/0x1bd
[  287.246767] lowmem_reserve[]: 0 0 3503 3503
[  287.274536]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  287.278832] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  287.283151]  ? lock_downgrade+0x900/0x900
[  287.287993] lowmem_reserve[]: 0 0 0 0
[  287.317052]  ? trace_hardirqs_off+0xb8/0x310
[  287.321188] 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
[  287.324982]  ? trace_hardirqs_off+0xb8/0x310
[  287.329377] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  287.342910]  __alloc_pages_slowpath+0x26e8/0x2e10
[  287.347290] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  287.362574]  ? warn_alloc+0x120/0x120
[  287.367376] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  287.381491]  ? print_usage_bug+0xc0/0xc0
[  287.385272] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  287.394090]  ? warn_alloc+0x120/0x120
[  287.398125] 273 total pagecache pages
[  287.406681]  ? warn_alloc+0x120/0x120
[  287.410459] 0 pages in swap cache
[  287.414244]  ? print_usage_bug+0xc0/0xc0
[  287.418030] Swap cache stats: add 0, delete 0, find 0/0
[  287.421463]  ? kvm_clock_read+0x18/0x30
[  287.425494] Free swap  = 0kB
[  287.430853]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  287.434804] Total swap = 0kB
[  287.437833]  ? print_usage_bug+0xc0/0xc0
[  287.442835] 1965979 pages RAM
[  287.445841]  ? __lock_acquire+0x62f/0x4c20
[  287.449869] 0 pages HighMem/MovableOnly
[  287.449876] 342853 pages reserved
[  287.452970]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.457187] 0 pages cma reserved
[  287.461186]  ? should_fail+0x22d/0xd01
[  287.464664] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  287.470140]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.470155]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.473615] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  287.477384]  ? __lock_acquire+0x62f/0x4c20
[  287.483898] syz-fuzzer cpuset=/ mems_allowed=0
[  287.489193]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.518356]  ? __lock_acquire+0x62f/0x4c20
[  287.522584]  ? should_fail+0x22d/0xd01
[  287.526469]  ? rcu_irq_exit+0x1a2/0x390
[  287.530474]  ? mark_held_locks+0x130/0x130
[  287.534708]  ? mark_held_locks+0x130/0x130
[  287.538945]  ? mark_held_locks+0xc7/0x130
[  287.543108]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  287.548121]  ? zap_class+0x640/0x640
[  287.551858]  ? print_usage_bug+0xc0/0xc0
[  287.555989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.561542]  ? check_preemption_disabled+0x48/0x280
[  287.566576]  ? __lock_is_held+0xb5/0x140
[  287.570652]  __alloc_pages_nodemask+0xa80/0xde0
[  287.575315]  ? zap_class+0x640/0x640
[  287.579065]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  287.584090]  ? find_held_lock+0x36/0x1c0
[  287.588162]  ? ____cache_alloc_node+0x1c7/0x1e0
[  287.592844]  ? lock_downgrade+0x900/0x900
[  287.597003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.602545]  cache_grow_begin+0xa5/0x8c0
[  287.606601]  ? do_raw_spin_unlock+0xa7/0x330
[  287.611014]  fallback_alloc+0x204/0x2e0
[  287.614995]  ____cache_alloc_node+0x1c7/0x1e0
[  287.619499]  kmem_cache_alloc_node+0xe3/0x730
[  287.623990]  ? ipv6_get_ifaddr+0x42e/0x620
[  287.628237]  __alloc_skb+0x119/0x770
[  287.631949]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.637244]  ? netdev_alloc_frag+0x1f0/0x1f0
[  287.641650]  ? lock_downgrade+0x900/0x900
[  287.645806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.651340]  ? refcount_sub_and_test_checked+0x203/0x310
[  287.656795]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  287.662256]  ? addrconf_rs_timer+0x690/0x690
[  287.666673]  ndisc_alloc_skb+0x144/0x340
[  287.670737]  ndisc_send_rs+0x331/0x6e0
[  287.674629]  addrconf_rs_timer+0x314/0x690
[  287.678888]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.683132]  call_timer_fn+0x272/0x920
[  287.687023]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.691257]  ? process_timeout+0x40/0x40
[  287.695337]  ? __run_timers+0x7da/0xc70
[  287.699308]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.703796]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.708286]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.712514]  ? lockdep_hardirqs_on+0x296/0x5b0
[  287.717111]  ? trace_hardirqs_on+0xbd/0x310
[  287.721462]  ? kasan_check_read+0x11/0x20
[  287.725604]  ? __run_timers+0x7da/0xc70
[  287.729578]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.734690]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.738926]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.743314]  __run_timers+0x7e5/0xc70
[  287.747118]  ? timer_fixup_init+0x70/0x70
[  287.751262]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  287.756285]  ? zap_class+0x640/0x640
[  287.760026]  ? enqueue_hrtimer+0x1a5/0x560
[  287.764254]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  287.769484]  ? find_held_lock+0x36/0x1c0
[  287.773558]  ? zap_class+0x640/0x640
[  287.777287]  ? pvclock_read_flags+0x160/0x160
[  287.781778]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.787318]  ? check_preemption_disabled+0x48/0x280
[  287.792333]  ? __lock_is_held+0xb5/0x140
[  287.796387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.801928]  ? check_preemption_disabled+0x48/0x280
[  287.806954]  run_timer_softirq+0x52/0xb0
[  287.811006]  ? rcu_read_lock_sched_held+0x14f/0x180
[  287.816016]  __do_softirq+0x308/0xb7e
[  287.819827]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  287.824317]  ? lock_downgrade+0x900/0x900
[  287.828493]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  287.833609]  ? pvclock_read_flags+0x160/0x160
[  287.838116]  ? lapic_next_event+0x5a/0x90
[  287.842256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.847822]  ? kvm_clock_read+0x18/0x30
[  287.851798]  ? kvm_sched_clock_read+0x9/0x20
[  287.856214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.861777]  ? check_preemption_disabled+0x48/0x280
[  287.866797]  irq_exit+0x17f/0x1c0
[  287.870246]  smp_apic_timer_interrupt+0x1cb/0x760
[  287.875191]  ? smp_reschedule_interrupt+0x109/0x650
[  287.880206]  ? smp_call_function_single_interrupt+0x650/0x650
[  287.886085]  ? interrupt_entry+0xb5/0xc0
[  287.890178]  ? trace_hardirqs_off_caller+0xbb/0x310
[  287.895203]  ? trace_hardirqs_off_caller+0xbb/0x310
[  287.900253]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.905086]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.910091]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.915096]  ? task_prio+0x50/0x50
[  287.918630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.924175]  ? check_preemption_disabled+0x48/0x280
[  287.929205]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.934232]  apic_timer_interrupt+0xf/0x20
[  287.938448]  </IRQ>
[  287.940677] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  287.945633] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  287.964572] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  287.972316] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  287.979580] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  287.986836] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  287.994097] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  288.001371] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  288.008661]  skb_clone+0x1bb/0x500
[  288.012199]  ? finish_task_switch+0x2f4/0x910
[  288.016692]  ? skb_split+0x11e0/0x11e0
[  288.020607]  ? preempt_notifier_register+0x200/0x200
[  288.025697]  ? __switch_to_asm+0x34/0x70
[  288.029746]  ? __switch_to_asm+0x34/0x70
[  288.033796]  ? __switch_to_asm+0x40/0x70
[  288.037851]  ? __switch_to_asm+0x34/0x70
[  288.041909]  ? __switch_to_asm+0x40/0x70
[  288.045957]  ? __switch_to_asm+0x34/0x70
[  288.050006]  ? __switch_to_asm+0x40/0x70
[  288.054056]  ? __switch_to_asm+0x34/0x70
[  288.058109]  ? __switch_to_asm+0x34/0x70
[  288.062168]  ? __switch_to_asm+0x40/0x70
[  288.066232]  ? __switch_to_asm+0x34/0x70
[  288.070303]  bpf_clone_redirect+0xb9/0x490
[  288.074529]  ? __schedule+0x8d7/0x21d0
[  288.078428]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  288.083441]  ? __sched_text_start+0x8/0x8
[  288.087597]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  288.092443]  ? find_held_lock+0x36/0x1c0
[  288.096508]  ? lock_acquire+0x1ed/0x520
[  288.100492]  ? bpf_test_run+0x3cb/0x780
[  288.104477]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.110008]  ? check_preemption_disabled+0x48/0x280
[  288.115025]  ? kasan_check_read+0x11/0x20
[  288.119226]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.124554]  ? rcu_softirq_qs+0x20/0x20
[  288.128528]  ? preempt_schedule+0x4d/0x60
[  288.132688]  ? ___preempt_schedule+0x16/0x18
[  288.137116]  ? bpf_test_run+0x25d/0x780
[  288.141105]  ? netlink_diag_dump+0x2a0/0x2a0
[  288.145522]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.151084]  ? bpf_test_init.isra.10+0x70/0x100
[  288.155753]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  288.160517]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  288.165353]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  288.170888]  ? fput+0x130/0x1a0
[  288.174193]  ? __bpf_prog_get+0x9b/0x290
[  288.178251]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  288.183086]  ? bpf_prog_test_run+0x130/0x1a0
[  288.187503]  ? __x64_sys_bpf+0x3d8/0x520
[  288.191550]  ? bpf_prog_get+0x20/0x20
[  288.195354]  ? do_syscall_64+0x1b9/0x820
[  288.199417]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  288.204786]  ? syscall_return_slowpath+0x5e0/0x5e0
[  288.209706]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.214717]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  288.219729]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  288.226414]  ? __switch_to_asm+0x40/0x70
[  288.230477]  ? __switch_to_asm+0x34/0x70
[  288.234589]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.239432]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  288.244800] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  288.244872] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  288.251803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  288.251811] Call Trace:
[  288.258370] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  288.267630]  <IRQ>
[  288.270197] syz-executor3 cpuset=syz3 mems_allowed=0
[  288.280692]  dump_stack+0x244/0x39d
[  288.291522]  ? dump_stack_print_info.cold.1+0x20/0x20
[  288.296715]  warn_alloc.cold.116+0xb7/0x1bd
[  288.301032]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  288.305875]  ? lock_downgrade+0x900/0x900
[  288.310021]  ? trace_hardirqs_off+0xb8/0x310
[  288.314426]  ? trace_hardirqs_off+0xb8/0x310
[  288.318869]  __alloc_pages_slowpath+0x26e8/0x2e10
[  288.323760]  ? warn_alloc+0x120/0x120
[  288.327554]  ? print_usage_bug+0xc0/0xc0
[  288.331606]  ? warn_alloc+0x120/0x120
[  288.335416]  ? warn_alloc+0x120/0x120
[  288.339215]  ? print_usage_bug+0xc0/0xc0
[  288.343268]  ? kvm_clock_read+0x18/0x30
[  288.347232]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  288.352255]  ? print_usage_bug+0xc0/0xc0
[  288.356322]  ? __lock_acquire+0x62f/0x4c20
[  288.360575]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.366141]  ? should_fail+0x22d/0xd01
[  288.370052]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.375338]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  288.380432]  ? __lock_acquire+0x62f/0x4c20
[  288.384678]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  288.389785]  ? __lock_acquire+0x62f/0x4c20
[  288.394005]  ? should_fail+0x22d/0xd01
[  288.397900]  ? rcu_irq_exit+0x1a2/0x390
[  288.401894]  ? mark_held_locks+0x130/0x130
[  288.406122]  ? mark_held_locks+0x130/0x130
[  288.410351]  ? mark_held_locks+0xc7/0x130
[  288.414491]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  288.419512]  ? zap_class+0x640/0x640
[  288.423227]  ? print_usage_bug+0xc0/0xc0
[  288.427297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.432824]  ? check_preemption_disabled+0x48/0x280
[  288.437904]  ? __lock_is_held+0xb5/0x140
[  288.441974]  __alloc_pages_nodemask+0xa80/0xde0
[  288.446650]  ? zap_class+0x640/0x640
[  288.450386]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  288.455434]  ? find_held_lock+0x36/0x1c0
[  288.459555]  ? ____cache_alloc_node+0x1c7/0x1e0
[  288.464246]  ? lock_downgrade+0x900/0x900
[  288.468395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.473941]  cache_grow_begin+0xa5/0x8c0
[  288.477992]  ? do_raw_spin_unlock+0xa7/0x330
[  288.482398]  fallback_alloc+0x204/0x2e0
[  288.486373]  ____cache_alloc_node+0x1c7/0x1e0
[  288.490878]  kmem_cache_alloc_node+0xe3/0x730
[  288.495368]  ? ipv6_get_ifaddr+0x42e/0x620
[  288.499626]  __alloc_skb+0x119/0x770
[  288.503334]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.508611]  ? netdev_alloc_frag+0x1f0/0x1f0
[  288.513017]  ? lock_downgrade+0x900/0x900
[  288.517181]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.522716]  ? refcount_sub_and_test_checked+0x203/0x310
[  288.528180]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  288.533628]  ? addrconf_rs_timer+0x690/0x690
[  288.538054]  ndisc_alloc_skb+0x144/0x340
[  288.542113]  ndisc_send_rs+0x331/0x6e0
[  288.546001]  addrconf_rs_timer+0x314/0x690
[  288.550247]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.554501]  call_timer_fn+0x272/0x920
[  288.558398]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.562627]  ? process_timeout+0x40/0x40
[  288.566693]  ? mark_held_locks+0xc7/0x130
[  288.570840]  ? _raw_spin_unlock_irq+0x27/0x80
[  288.575341]  ? _raw_spin_unlock_irq+0x27/0x80
[  288.579836]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.584081]  ? lockdep_hardirqs_on+0x296/0x5b0
[  288.588683]  ? trace_hardirqs_on+0xbd/0x310
[  288.593005]  ? kasan_check_read+0x11/0x20
[  288.597151]  ? __run_timers+0x7da/0xc70
[  288.601124]  ? trace_hardirqs_off_caller+0x310/0x310
[  288.606235]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.610476]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.614711]  __run_timers+0x7e5/0xc70
[  288.618523]  ? timer_fixup_init+0x70/0x70
[  288.622695]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  288.627729]  ? zap_class+0x640/0x640
[  288.631460]  ? print_usage_bug+0xc0/0xc0
[  288.635521]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  288.640759]  ? find_held_lock+0x36/0x1c0
[  288.644832]  ? zap_class+0x640/0x640
[  288.648553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.654093]  ? check_preemption_disabled+0x48/0x280
[  288.659119]  ? __lock_is_held+0xb5/0x140
[  288.663182]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.668721]  ? check_preemption_disabled+0x48/0x280
[  288.673744]  run_timer_softirq+0x52/0xb0
[  288.677806]  ? rcu_read_lock_sched_held+0x14f/0x180
[  288.682821]  __do_softirq+0x308/0xb7e
[  288.686624]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  288.691123]  ? lock_downgrade+0x900/0x900
[  288.695290]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  288.700417]  ? pvclock_read_flags+0x160/0x160
[  288.704922]  ? lapic_next_event+0x5a/0x90
[  288.709084]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.714638]  ? kvm_clock_read+0x18/0x30
[  288.718618]  ? kvm_sched_clock_read+0x9/0x20
[  288.723027]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.728564]  ? check_preemption_disabled+0x48/0x280
[  288.733627]  irq_exit+0x17f/0x1c0
[  288.737092]  smp_apic_timer_interrupt+0x1cb/0x760
[  288.741949]  ? smp_reschedule_interrupt+0x109/0x650
[  288.746966]  ? smp_call_function_single_interrupt+0x650/0x650
[  288.752850]  ? interrupt_entry+0xb5/0xc0
[  288.756920]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.761935]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.766948]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.771796]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.776835]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.781877]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.786735]  apic_timer_interrupt+0xf/0x20
[  288.790960]  </IRQ>
[  288.793211] RIP: 0010:dump_stack+0x358/0x39d
[  288.797629] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  288.816526] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  288.824225] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  288.831503] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  288.838765] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  288.846044] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  288.853321] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  288.860622]  ? dump_stack+0x34f/0x39d
[  288.864463]  ? dump_stack_print_info.cold.1+0x20/0x20
[  288.869684]  ? mark_held_locks+0x130/0x130
[  288.873928]  ? mark_held_locks+0x130/0x130
[  288.878191]  dump_header+0x27b/0xf72
[  288.881913]  ? pagefault_out_of_memory+0x197/0x197
[  288.886846]  ? __lock_acquire+0x62f/0x4c20
[  288.891115]  ? percpu_ref_get_many+0x240/0x240
[  288.895706]  ? print_usage_bug+0xc0/0xc0
[  288.899781]  ? zap_class+0x640/0x640
[  288.903492]  ? print_usage_bug+0xc0/0xc0
[  288.907549]  ? print_usage_bug+0xc0/0xc0
[  288.911605]  ? zap_class+0x640/0x640
[  288.915316]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.920874]  ? find_held_lock+0x36/0x1c0
[  288.924965]  ? mark_held_locks+0xc7/0x130
[  288.929119]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  288.934265]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  288.939378]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  288.943953]  ? trace_hardirqs_on+0xbd/0x310
[  288.948278]  ? kasan_check_read+0x11/0x20
[  288.952418]  ? ___ratelimit+0x3b4/0x672
[  288.956382]  ? trace_hardirqs_off_caller+0x310/0x310
[  288.961509]  ? trace_hardirqs_on+0x310/0x310
[  288.965936]  ? lock_downgrade+0x900/0x900
[  288.970078]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  288.975174]  ? ___ratelimit+0x3b9/0x672
[  288.979140]  ? idr_get_free+0xf70/0xf70
[  288.983101]  ? find_held_lock+0x36/0x1c0
[  288.987157]  oom_kill_process.cold.27+0x10/0x903
[  288.991931]  ? zap_class+0x640/0x640
[  288.995631]  ? check_preemption_disabled+0x48/0x280
[  289.000669]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.005588]  ? kasan_check_read+0x11/0x20
[  289.009723]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.014990]  ? oom_evaluate_task+0x540/0x540
[  289.019405]  ? find_held_lock+0x36/0x1c0
[  289.023462]  ? out_of_memory+0x974/0x1430
[  289.027613]  ? lock_downgrade+0x900/0x900
[  289.031752]  ? check_preemption_disabled+0x48/0x280
[  289.036774]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.041690]  ? kasan_check_read+0x11/0x20
[  289.045870]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.051162]  ? rcu_softirq_qs+0x20/0x20
[  289.055159]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.060698]  ? oom_evaluate_task+0x302/0x540
[  289.065116]  out_of_memory+0xa84/0x1430
[  289.069133]  ? oom_killer_disable+0x3a0/0x3a0
[  289.073621]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  289.078592]  ? __ww_mutex_check_waiters+0x160/0x160
[  289.083610]  __alloc_pages_slowpath+0x2354/0x2e10
[  289.088513]  ? warn_alloc+0x120/0x120
[  289.092305]  ? mark_held_locks+0x130/0x130
[  289.096547]  ? find_get_entry+0xaae/0x1120
[  289.100779]  ? filemap_map_pages+0x1a20/0x1a20
[  289.105411]  ? zap_class+0x640/0x640
[  289.109130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.114664]  ? check_preemption_disabled+0x48/0x280
[  289.119675]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.125203]  ? should_fail+0x22d/0xd01
[  289.129085]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.134216]  ? zap_class+0x640/0x640
[  289.137974]  ? __lock_is_held+0xb5/0x140
[  289.142045]  ? mark_held_locks+0x130/0x130
[  289.146292]  ? lock_release+0xa00/0xa00
[  289.150278]  ? perf_trace_sched_process_exec+0x860/0x860
[  289.155741]  ? xa_load+0x2ba/0x460
[  289.159276]  ? lock_downgrade+0x900/0x900
[  289.163448]  ? __might_sleep+0x95/0x190
[  289.167454]  __alloc_pages_nodemask+0xa80/0xde0
[  289.172140]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  289.177152]  ? __page_cache_alloc+0x191/0x5c0
[  289.181642]  ? xa_load+0x2e1/0x460
[  289.185224]  ? xa_clear_mark+0x40/0x40
[  289.189150]  ? zap_class+0x640/0x640
[  289.192874]  ? zap_class+0x640/0x640
[  289.196583]  ? zap_class+0x640/0x640
[  289.200290]  ? __do_page_cache_readahead+0x663/0x810
[  289.205404]  ? find_held_lock+0x36/0x1c0
[  289.209468]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  289.215036]  alloc_pages_current+0x173/0x350
[  289.219441]  __page_cache_alloc+0x38c/0x5c0
[  289.223751]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.228688]  ? kasan_check_read+0x11/0x20
[  289.232829]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.238101]  ? generic_perform_write+0x6a0/0x6a0
[  289.242849]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.248402]  ? check_preemption_disabled+0x48/0x280
[  289.253416]  filemap_fault+0x1595/0x25f0
[  289.257491]  ? __lock_page_or_retry+0xa00/0xa00
[  289.262168]  ? mark_held_locks+0x130/0x130
[  289.266418]  ? filemap_map_pages+0xd6b/0x1a20
[  289.270920]  ? lock_downgrade+0x900/0x900
[  289.275071]  ? check_preemption_disabled+0x48/0x280
[  289.280082]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.285013]  ? kasan_check_read+0x11/0x20
[  289.289169]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.294457]  ? rcu_softirq_qs+0x20/0x20
[  289.298466]  ? filemap_map_pages+0xd92/0x1a20
[  289.302961]  ? print_usage_bug+0xc0/0xc0
[  289.307043]  ? find_get_entries_tag+0x1400/0x1400
[  289.311889]  ? __kasan_slab_free+0x102/0x150
[  289.316294]  ? kasan_slab_free+0xe/0x10
[  289.320260]  ? kmem_cache_free+0x83/0x290
[  289.324404]  ? __sigqueue_free.part.29+0x74/0x90
[  289.329176]  ? lock_acquire+0x1ed/0x520
[  289.333152]  ? ext4_filemap_fault+0x7a/0xad
[  289.337479]  ? lock_release+0xa00/0xa00
[  289.341455]  ? perf_trace_sched_process_exec+0x860/0x860
[  289.346923]  ? print_usage_bug+0xc0/0xc0
[  289.350984]  ? print_usage_bug+0xc0/0xc0
[  289.355057]  ? down_read+0x8d/0x120
[  289.358698]  ? ext4_filemap_fault+0x7a/0xad
[  289.363021]  ? __down_interruptible+0x700/0x700
[  289.367702]  ext4_filemap_fault+0x82/0xad
[  289.371850]  __do_fault+0x100/0x6b0
[  289.375523]  ? pmd_devmap_trans_unstable+0x220/0x220
[  289.380637]  ? mark_held_locks+0x130/0x130
[  289.384890]  ? mark_held_locks+0x130/0x130
[  289.389160]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  289.394719]  ? rcu_pm_notify+0xc0/0xc0
[  289.398616]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.404169]  __handle_mm_fault+0x3ea0/0x5be0
[  289.408601]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  289.413439]  ? _raw_spin_unlock_irq+0x27/0x80
[  289.417936]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  289.422518]  ? trace_hardirqs_on+0xbd/0x310
[  289.426837]  ? kasan_check_read+0x11/0x20
[  289.430989]  ? __set_current_blocked+0xdf/0x120
[  289.435657]  ? trace_hardirqs_off_caller+0x310/0x310
[  289.440775]  ? zap_class+0x640/0x640
[  289.444487]  ? zap_class+0x640/0x640
[  289.448223]  ? find_held_lock+0x36/0x1c0
[  289.452292]  ? handle_mm_fault+0x42a/0xc70
[  289.456532]  ? lock_downgrade+0x900/0x900
[  289.460694]  ? check_preemption_disabled+0x48/0x280
[  289.465717]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.470644]  ? kasan_check_read+0x11/0x20
[  289.474795]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.480071]  ? rcu_softirq_qs+0x20/0x20
[  289.484043]  ? trace_hardirqs_off_caller+0x310/0x310
[  289.489147]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.494690]  ? check_preemption_disabled+0x48/0x280
[  289.499725]  handle_mm_fault+0x54f/0xc70
[  289.503789]  ? __handle_mm_fault+0x5be0/0x5be0
[  289.508375]  ? find_vma+0x34/0x190
[  289.511931]  __do_page_fault+0x5e8/0xe60
[  289.515993]  ? exit_to_usermode_loop+0x1f4/0x380
[  289.520759]  do_page_fault+0xf2/0x7e0
[  289.524558]  ? vmalloc_sync_all+0x30/0x30
[  289.528707]  ? error_entry+0x70/0xd0
[  289.532424]  ? trace_hardirqs_off_caller+0xbb/0x310
[  289.537438]  ? trace_hardirqs_on_caller+0xc0/0x310
[  289.542366]  ? syscall_return_slowpath+0x5e0/0x5e0
[  289.547294]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.552140]  ? trace_hardirqs_on_caller+0x310/0x310
[  289.557159]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  289.562613]  ? prepare_exit_to_usermode+0x291/0x3b0
[  289.567628]  ? page_fault+0x8/0x30
[  289.571181]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.576024]  ? page_fault+0x8/0x30
[  289.579563]  page_fault+0x1e/0x30
[  289.583026] RIP: 0033:0x45db60
[  289.586243] Code: Bad RIP value.
[  289.589620] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  289.594987] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  289.602254] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  289.609524] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  289.616791] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  289.624060] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  289.631354] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  289.631360] warn_alloc_show_mem: 1 callbacks suppressed
[  289.631367] Mem-Info:
[  289.638647] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  289.644050] active_anon:54051 inactive_anon:192 isolated_anon:0
[  289.644050]  active_file:9 inactive_file:20 isolated_file:0
[  289.644050]  unevictable:0 dirty:0 writeback:0 unstable:0
[  289.644050]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  289.644050]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  289.644050]  free:13735 free_pcp:540 free_cma:0
[  289.646423] Call Trace:
[  289.655808] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  289.688563]  <IRQ>
[  289.691130] 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
[  289.718547]  dump_stack+0x244/0x39d
[  289.720685] lowmem_reserve[]: 0 2818 6321 6321
[  289.746980]  ? dump_stack_print_info.cold.1+0x20/0x20
[  289.750583] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  289.755167]  warn_alloc.cold.116+0xb7/0x1bd
[  289.760316] lowmem_reserve[]: 0 0 3503 3503
[  289.788066]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  289.792358] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  289.796679]  ? lock_downgrade+0x900/0x900
[  289.801494] lowmem_reserve[]: 0 0 0 0
[  289.830563]  ? trace_hardirqs_off+0xb8/0x310
[  289.834683] 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
[  289.838472]  ? trace_hardirqs_off+0xb8/0x310
[  289.842848] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  289.856366]  __alloc_pages_slowpath+0x26e8/0x2e10
[  289.860740] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  289.876209]  ? warn_alloc+0x120/0x120
[  289.881006] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  289.895265]  ? print_usage_bug+0xc0/0xc0
[  289.899043] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  289.907858]  ? warn_alloc+0x120/0x120
[  289.911926] 273 total pagecache pages
[  289.920482]  ? warn_alloc+0x120/0x120
[  289.924257] 0 pages in swap cache
[  289.928069]  ? print_usage_bug+0xc0/0xc0
[  289.931840] Swap cache stats: add 0, delete 0, find 0/0
[  289.931848] Free swap  = 0kB
[  289.935293]  ? kvm_clock_read+0x18/0x30
[  289.939341] Total swap = 0kB
[  289.944705]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  289.947695] 1965979 pages RAM
[  289.951668]  ? print_usage_bug+0xc0/0xc0
[  289.954672] 0 pages HighMem/MovableOnly
[  289.959682]  ? __lock_acquire+0x62f/0x4c20
[  289.962755] 342853 pages reserved
[  289.966834]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.970776] 0 pages cma reserved
[  289.975007]  ? should_fail+0x22d/0xd01
[  289.978500] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  289.983954]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.983969]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.983982]  ? __lock_acquire+0x62f/0x4c20
[  289.987392] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  289.991211]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.997673] syz-fuzzer cpuset=/ mems_allowed=0
[  290.002939]  ? __lock_acquire+0x62f/0x4c20
[  290.036400]  ? should_fail+0x22d/0xd01
[  290.040303]  ? rcu_irq_exit+0x1a2/0x390
[  290.044307]  ? mark_held_locks+0x130/0x130
[  290.048572]  ? mark_held_locks+0x130/0x130
[  290.052824]  ? mark_held_locks+0xc7/0x130
[  290.056967]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  290.061974]  ? zap_class+0x640/0x640
[  290.065679]  ? print_usage_bug+0xc0/0xc0
[  290.069738]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.075294]  ? check_preemption_disabled+0x48/0x280
[  290.080348]  ? __lock_is_held+0xb5/0x140
[  290.084428]  __alloc_pages_nodemask+0xa80/0xde0
[  290.089109]  ? zap_class+0x640/0x640
[  290.092823]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  290.097840]  ? find_held_lock+0x36/0x1c0
[  290.101923]  ? ____cache_alloc_node+0x1c7/0x1e0
[  290.106629]  ? lock_downgrade+0x900/0x900
[  290.110797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.116385]  cache_grow_begin+0xa5/0x8c0
[  290.120445]  ? do_raw_spin_unlock+0xa7/0x330
[  290.124858]  fallback_alloc+0x204/0x2e0
[  290.128842]  ____cache_alloc_node+0x1c7/0x1e0
[  290.133355]  kmem_cache_alloc_node+0xe3/0x730
[  290.137844]  ? ipv6_get_ifaddr+0x42e/0x620
[  290.142115]  __alloc_skb+0x119/0x770
[  290.145824]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.151116]  ? netdev_alloc_frag+0x1f0/0x1f0
[  290.155528]  ? lock_downgrade+0x900/0x900
[  290.159729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.165276]  ? refcount_sub_and_test_checked+0x203/0x310
[  290.170730]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  290.176179]  ? addrconf_rs_timer+0x690/0x690
[  290.180601]  ndisc_alloc_skb+0x144/0x340
[  290.184673]  ndisc_send_rs+0x331/0x6e0
[  290.188592]  addrconf_rs_timer+0x314/0x690
[  290.192827]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.197079]  call_timer_fn+0x272/0x920
[  290.200955]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.205189]  ? process_timeout+0x40/0x40
[  290.209263]  ? __run_timers+0x7da/0xc70
[  290.213263]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.217768]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.222250]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.226489]  ? lockdep_hardirqs_on+0x296/0x5b0
[  290.231065]  ? trace_hardirqs_on+0xbd/0x310
[  290.235376]  ? kasan_check_read+0x11/0x20
[  290.239523]  ? __run_timers+0x7da/0xc70
[  290.243518]  ? trace_hardirqs_off_caller+0x310/0x310
[  290.248622]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.252852]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.257096]  __run_timers+0x7e5/0xc70
[  290.260937]  ? timer_fixup_init+0x70/0x70
[  290.265074]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  290.270080]  ? zap_class+0x640/0x640
[  290.273789]  ? enqueue_hrtimer+0x1a5/0x560
[  290.278015]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  290.283210]  ? find_held_lock+0x36/0x1c0
[  290.287266]  ? zap_class+0x640/0x640
[  290.291023]  ? pvclock_read_flags+0x160/0x160
[  290.295553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.301079]  ? check_preemption_disabled+0x48/0x280
[  290.306095]  ? __lock_is_held+0xb5/0x140
[  290.310154]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.315695]  ? check_preemption_disabled+0x48/0x280
[  290.320709]  run_timer_softirq+0x52/0xb0
[  290.324761]  ? rcu_read_lock_sched_held+0x14f/0x180
[  290.329781]  __do_softirq+0x308/0xb7e
[  290.333591]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  290.338077]  ? lock_downgrade+0x900/0x900
[  290.342221]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  290.347333]  ? pvclock_read_flags+0x160/0x160
[  290.351827]  ? lapic_next_event+0x5a/0x90
[  290.355986]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.361577]  ? kvm_clock_read+0x18/0x30
[  290.365557]  ? kvm_sched_clock_read+0x9/0x20
[  290.369959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.375489]  ? check_preemption_disabled+0x48/0x280
[  290.380505]  irq_exit+0x17f/0x1c0
[  290.383946]  smp_apic_timer_interrupt+0x1cb/0x760
[  290.388788]  ? smp_reschedule_interrupt+0x109/0x650
[  290.393792]  ? smp_call_function_single_interrupt+0x650/0x650
[  290.399665]  ? interrupt_entry+0xb5/0xc0
[  290.403730]  ? trace_hardirqs_off_caller+0xbb/0x310
[  290.408749]  ? trace_hardirqs_off_caller+0xbb/0x310
[  290.413756]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.418608]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.423614]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.428630]  ? task_prio+0x50/0x50
[  290.432168]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.437714]  ? check_preemption_disabled+0x48/0x280
[  290.442726]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.447580]  apic_timer_interrupt+0xf/0x20
[  290.451827]  </IRQ>
[  290.454059] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  290.458999] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  290.477930] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  290.485643] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  290.492957] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  290.500247] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  290.507552] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  290.514843] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  290.522138]  skb_clone+0x1bb/0x500
[  290.525678]  ? finish_task_switch+0x2f4/0x910
[  290.530178]  ? skb_split+0x11e0/0x11e0
[  290.534066]  ? preempt_notifier_register+0x200/0x200
[  290.539187]  ? __switch_to_asm+0x34/0x70
[  290.543246]  ? __switch_to_asm+0x34/0x70
[  290.547329]  ? __switch_to_asm+0x40/0x70
[  290.551395]  ? __switch_to_asm+0x34/0x70
[  290.555462]  ? __switch_to_asm+0x40/0x70
[  290.559513]  ? __switch_to_asm+0x34/0x70
[  290.563590]  ? __switch_to_asm+0x40/0x70
[  290.567638]  ? __switch_to_asm+0x34/0x70
[  290.571689]  ? __switch_to_asm+0x34/0x70
[  290.575743]  ? __switch_to_asm+0x40/0x70
[  290.579794]  ? __switch_to_asm+0x34/0x70
[  290.583853]  bpf_clone_redirect+0xb9/0x490
[  290.588088]  ? __schedule+0x8d7/0x21d0
[  290.591977]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  290.597010]  ? __sched_text_start+0x8/0x8
[  290.601198]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  290.605984]  ? find_held_lock+0x36/0x1c0
[  290.610071]  ? lock_acquire+0x1ed/0x520
[  290.614045]  ? bpf_test_run+0x3cb/0x780
[  290.618026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.623601]  ? check_preemption_disabled+0x48/0x280
[  290.628639]  ? kasan_check_read+0x11/0x20
[  290.632793]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.638082]  ? rcu_softirq_qs+0x20/0x20
[  290.642057]  ? preempt_schedule+0x4d/0x60
[  290.646215]  ? ___preempt_schedule+0x16/0x18
[  290.650622]  ? bpf_test_run+0x25d/0x780
[  290.654614]  ? netlink_diag_dump+0x2a0/0x2a0
[  290.659013]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.664538]  ? bpf_test_init.isra.10+0x70/0x100
[  290.669204]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  290.673963]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  290.678829]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  290.684382]  ? fput+0x130/0x1a0
[  290.687654]  ? __bpf_prog_get+0x9b/0x290
[  290.691724]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  290.696590]  ? bpf_prog_test_run+0x130/0x1a0
[  290.700994]  ? __x64_sys_bpf+0x3d8/0x520
[  290.705073]  ? bpf_prog_get+0x20/0x20
[  290.708891]  ? do_syscall_64+0x1b9/0x820
[  290.712976]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  290.718347]  ? syscall_return_slowpath+0x5e0/0x5e0
[  290.723287]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.728329]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  290.733340]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  290.740009]  ? __switch_to_asm+0x40/0x70
[  290.744256]  ? __switch_to_asm+0x34/0x70
[  290.748318]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.753189]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  290.758574] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  290.758664] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  290.765573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  290.765577] Call Trace:
[  290.765583]  <IRQ>
[  290.765597]  dump_stack+0x244/0x39d
[  290.765613]  ? dump_stack_print_info.cold.1+0x20/0x20
[  290.772138] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  290.781420]  warn_alloc.cold.116+0xb7/0x1bd
[  290.783968] syz-executor3 cpuset=syz3 mems_allowed=0
[  290.786131]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  290.819608]  ? lock_downgrade+0x900/0x900
[  290.823758]  ? trace_hardirqs_off+0xb8/0x310
[  290.828164]  ? trace_hardirqs_off+0xb8/0x310
[  290.832576]  __alloc_pages_slowpath+0x26e8/0x2e10
[  290.837439]  ? warn_alloc+0x120/0x120
[  290.841252]  ? print_usage_bug+0xc0/0xc0
[  290.845311]  ? warn_alloc+0x120/0x120
[  290.849108]  ? warn_alloc+0x120/0x120
[  290.852903]  ? print_usage_bug+0xc0/0xc0
[  290.856965]  ? print_usage_bug+0xc0/0xc0
[  290.861026]  ? __lock_acquire+0x62f/0x4c20
[  290.865267]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.870804]  ? should_fail+0x22d/0xd01
[  290.874711]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.879809]  ? __lock_acquire+0x62f/0x4c20
[  290.884040]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.889178]  ? __lock_acquire+0x62f/0x4c20
[  290.893439]  ? should_fail+0x22d/0xd01
[  290.897342]  ? find_held_lock+0x36/0x1c0
[  290.901407]  ? mark_held_locks+0x130/0x130
[  290.905671]  ? mark_held_locks+0x130/0x130
[  290.909946]  ? zap_class+0x640/0x640
[  290.913657]  ? zap_class+0x640/0x640
[  290.917420]  ? print_usage_bug+0xc0/0xc0
[  290.921483]  ? do_raw_spin_unlock+0xa7/0x330
[  290.925894]  ? zap_class+0x640/0x640
[  290.929621]  ? print_usage_bug+0xc0/0xc0
[  290.933696]  ? wq_watchdog_touch+0x9c/0xfe
[  290.937930]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.943461]  ? check_preemption_disabled+0x48/0x280
[  290.948479]  ? __lock_is_held+0xb5/0x140
[  290.952543]  __alloc_pages_nodemask+0xa80/0xde0
[  290.957222]  ? zap_class+0x640/0x640
[  290.960936]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  290.965969]  ? find_held_lock+0x36/0x1c0
[  290.970028]  ? ____cache_alloc_node+0x1c7/0x1e0
[  290.974691]  ? lock_downgrade+0x900/0x900
[  290.978849]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.984399]  cache_grow_begin+0xa5/0x8c0
[  290.988448]  ? do_raw_spin_unlock+0xa7/0x330
[  290.992853]  fallback_alloc+0x204/0x2e0
[  290.996876]  ____cache_alloc_node+0x1c7/0x1e0
[  291.001399]  kmem_cache_alloc_node+0xe3/0x730
[  291.005889]  ? ipv6_get_ifaddr+0x42e/0x620
[  291.010126]  __alloc_skb+0x119/0x770
[  291.013830]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.019102]  ? netdev_alloc_frag+0x1f0/0x1f0
[  291.023503]  ? lock_downgrade+0x900/0x900
[  291.027648]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.033195]  ? refcount_sub_and_test_checked+0x203/0x310
[  291.038656]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  291.044114]  ? addrconf_rs_timer+0x690/0x690
[  291.048527]  ndisc_alloc_skb+0x144/0x340
[  291.052598]  ndisc_send_rs+0x331/0x6e0
[  291.056484]  addrconf_rs_timer+0x314/0x690
[  291.060719]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.064955]  call_timer_fn+0x272/0x920
[  291.068836]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.073081]  ? process_timeout+0x40/0x40
[  291.077176]  ? mark_held_locks+0xc7/0x130
[  291.081342]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.085828]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.090312]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.094557]  ? lockdep_hardirqs_on+0x296/0x5b0
[  291.099136]  ? trace_hardirqs_on+0xbd/0x310
[  291.103463]  ? kasan_check_read+0x11/0x20
[  291.107604]  ? __run_timers+0x7da/0xc70
[  291.111603]  ? trace_hardirqs_off_caller+0x310/0x310
[  291.116715]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.120969]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.125194]  __run_timers+0x7e5/0xc70
[  291.129027]  ? timer_fixup_init+0x70/0x70
[  291.133172]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  291.138259]  ? zap_class+0x640/0x640
[  291.141976]  ? print_usage_bug+0xc0/0xc0
[  291.146053]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  291.151247]  ? find_held_lock+0x36/0x1c0
[  291.155399]  ? zap_class+0x640/0x640
[  291.159126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.164670]  ? check_preemption_disabled+0x48/0x280
[  291.169700]  ? __lock_is_held+0xb5/0x140
[  291.173760]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.179384]  ? check_preemption_disabled+0x48/0x280
[  291.184406]  run_timer_softirq+0x52/0xb0
[  291.188467]  ? rcu_read_lock_sched_held+0x14f/0x180
[  291.193497]  __do_softirq+0x308/0xb7e
[  291.197349]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  291.201844]  ? lock_downgrade+0x900/0x900
[  291.206031]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  291.211155]  ? pvclock_read_flags+0x160/0x160
[  291.215656]  ? lapic_next_event+0x5a/0x90
[  291.219809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.225353]  ? kvm_clock_read+0x18/0x30
[  291.229347]  ? kvm_sched_clock_read+0x9/0x20
[  291.233758]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.239297]  ? check_preemption_disabled+0x48/0x280
[  291.244339]  irq_exit+0x17f/0x1c0
[  291.247793]  smp_apic_timer_interrupt+0x1cb/0x760
[  291.252638]  ? smp_reschedule_interrupt+0x109/0x650
[  291.257657]  ? smp_call_function_single_interrupt+0x650/0x650
[  291.263573]  ? interrupt_entry+0xb5/0xc0
[  291.267646]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.272687]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.277702]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.282545]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.287555]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.292589]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.297432]  apic_timer_interrupt+0xf/0x20
[  291.301674]  </IRQ>
[  291.303930] RIP: 0010:dump_stack+0x358/0x39d
[  291.308351] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  291.327240] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  291.334936] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  291.342193] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  291.349449] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  291.356710] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  291.363968] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  291.371244]  ? dump_stack+0x34f/0x39d
[  291.375047]  ? dump_stack_print_info.cold.1+0x20/0x20
[  291.380227]  ? mark_held_locks+0x130/0x130
[  291.384451]  ? mark_held_locks+0x130/0x130
[  291.388684]  dump_header+0x27b/0xf72
[  291.392430]  ? pagefault_out_of_memory+0x197/0x197
[  291.397372]  ? __lock_acquire+0x62f/0x4c20
[  291.401637]  ? percpu_ref_get_many+0x240/0x240
[  291.406252]  ? print_usage_bug+0xc0/0xc0
[  291.410326]  ? zap_class+0x640/0x640
[  291.414033]  ? print_usage_bug+0xc0/0xc0
[  291.418079]  ? print_usage_bug+0xc0/0xc0
[  291.422132]  ? zap_class+0x640/0x640
[  291.425836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.431369]  ? find_held_lock+0x36/0x1c0
[  291.435426]  ? mark_held_locks+0xc7/0x130
[  291.439568]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  291.444658]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  291.449759]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  291.454336]  ? trace_hardirqs_on+0xbd/0x310
[  291.458667]  ? kasan_check_read+0x11/0x20
[  291.462804]  ? ___ratelimit+0x3b4/0x672
[  291.466768]  ? trace_hardirqs_off_caller+0x310/0x310
[  291.471875]  ? trace_hardirqs_on+0x310/0x310
[  291.476287]  ? lock_downgrade+0x900/0x900
[  291.480445]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  291.485551]  ? ___ratelimit+0x3b9/0x672
[  291.489527]  ? idr_get_free+0xf70/0xf70
[  291.493502]  ? find_held_lock+0x36/0x1c0
[  291.497571]  oom_kill_process.cold.27+0x10/0x903
[  291.502329]  ? zap_class+0x640/0x640
[  291.506047]  ? check_preemption_disabled+0x48/0x280
[  291.511079]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.516008]  ? kasan_check_read+0x11/0x20
[  291.520156]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.525433]  ? oom_evaluate_task+0x540/0x540
[  291.529847]  ? find_held_lock+0x36/0x1c0
[  291.533924]  ? out_of_memory+0x974/0x1430
[  291.538078]  ? lock_downgrade+0x900/0x900
[  291.542230]  ? check_preemption_disabled+0x48/0x280
[  291.547251]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.552184]  ? kasan_check_read+0x11/0x20
[  291.556336]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.561613]  ? rcu_softirq_qs+0x20/0x20
[  291.565596]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.571131]  ? oom_evaluate_task+0x302/0x540
[  291.575547]  out_of_memory+0xa84/0x1430
[  291.579530]  ? oom_killer_disable+0x3a0/0x3a0
[  291.584031]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  291.588965]  ? __ww_mutex_check_waiters+0x160/0x160
[  291.593996]  __alloc_pages_slowpath+0x2354/0x2e10
[  291.598874]  ? warn_alloc+0x120/0x120
[  291.602679]  ? mark_held_locks+0x130/0x130
[  291.606921]  ? find_get_entry+0xaae/0x1120
[  291.611168]  ? filemap_map_pages+0x1a20/0x1a20
[  291.615755]  ? zap_class+0x640/0x640
[  291.619478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.625016]  ? check_preemption_disabled+0x48/0x280
[  291.630031]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.635569]  ? should_fail+0x22d/0xd01
[  291.639469]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  291.644572]  ? zap_class+0x640/0x640
[  291.648312]  ? __lock_is_held+0xb5/0x140
[  291.652389]  ? mark_held_locks+0x130/0x130
[  291.656629]  ? lock_release+0xa00/0xa00
[  291.660608]  ? perf_trace_sched_process_exec+0x860/0x860
[  291.666058]  ? xa_load+0x2ba/0x460
[  291.669592]  ? lock_downgrade+0x900/0x900
[  291.673738]  ? __might_sleep+0x95/0x190
[  291.677717]  __alloc_pages_nodemask+0xa80/0xde0
[  291.682392]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  291.687408]  ? __page_cache_alloc+0x191/0x5c0
[  291.691909]  ? xa_load+0x2e1/0x460
[  291.695455]  ? xa_clear_mark+0x40/0x40
[  291.699362]  ? zap_class+0x640/0x640
[  291.703082]  ? zap_class+0x640/0x640
[  291.706793]  ? zap_class+0x640/0x640
[  291.710505]  ? __do_page_cache_readahead+0x663/0x810
[  291.715611]  ? find_held_lock+0x36/0x1c0
[  291.719697]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  291.725261]  alloc_pages_current+0x173/0x350
[  291.729698]  __page_cache_alloc+0x38c/0x5c0
[  291.734013]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.738954]  ? kasan_check_read+0x11/0x20
[  291.743309]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.748586]  ? generic_perform_write+0x6a0/0x6a0
[  291.753338]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.758894]  ? check_preemption_disabled+0x48/0x280
[  291.763922]  filemap_fault+0x1595/0x25f0
[  291.768000]  ? __lock_page_or_retry+0xa00/0xa00
[  291.772678]  ? mark_held_locks+0x130/0x130
[  291.776928]  ? filemap_map_pages+0xd6b/0x1a20
[  291.781418]  ? lock_downgrade+0x900/0x900
[  291.785559]  ? check_preemption_disabled+0x48/0x280
[  291.790571]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.795494]  ? kasan_check_read+0x11/0x20
[  291.799655]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.804930]  ? rcu_softirq_qs+0x20/0x20
[  291.808909]  ? filemap_map_pages+0xd92/0x1a20
[  291.813408]  ? print_usage_bug+0xc0/0xc0
[  291.817485]  ? find_get_entries_tag+0x1400/0x1400
[  291.822325]  ? __kasan_slab_free+0x102/0x150
[  291.826759]  ? kasan_slab_free+0xe/0x10
[  291.830725]  ? kmem_cache_free+0x83/0x290
[  291.834875]  ? __sigqueue_free.part.29+0x74/0x90
[  291.839643]  ? lock_acquire+0x1ed/0x520
[  291.843617]  ? ext4_filemap_fault+0x7a/0xad
[  291.847976]  ? lock_release+0xa00/0xa00
[  291.851951]  ? perf_trace_sched_process_exec+0x860/0x860
[  291.857402]  ? print_usage_bug+0xc0/0xc0
[  291.861490]  ? print_usage_bug+0xc0/0xc0
[  291.865572]  ? down_read+0x8d/0x120
[  291.869194]  ? ext4_filemap_fault+0x7a/0xad
[  291.874001]  ? __down_interruptible+0x700/0x700
[  291.878676]  ext4_filemap_fault+0x82/0xad
[  291.882819]  __do_fault+0x100/0x6b0
[  291.886444]  ? pmd_devmap_trans_unstable+0x220/0x220
[  291.891543]  ? mark_held_locks+0x130/0x130
[  291.895796]  ? mark_held_locks+0x130/0x130
[  291.900027]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  291.905567]  ? rcu_pm_notify+0xc0/0xc0
[  291.909478]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.915027]  __handle_mm_fault+0x3ea0/0x5be0
[  291.919438]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  291.924274]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.928815]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  291.933406]  ? trace_hardirqs_on+0xbd/0x310
[  291.937909]  ? kasan_check_read+0x11/0x20
[  291.942055]  ? __set_current_blocked+0xdf/0x120
[  291.946739]  ? trace_hardirqs_off_caller+0x310/0x310
[  291.951855]  ? zap_class+0x640/0x640
[  291.955602]  ? zap_class+0x640/0x640
[  291.959320]  ? find_held_lock+0x36/0x1c0
[  291.963390]  ? handle_mm_fault+0x42a/0xc70
[  291.967626]  ? lock_downgrade+0x900/0x900
[  291.971774]  ? check_preemption_disabled+0x48/0x280
[  291.976791]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.981735]  ? kasan_check_read+0x11/0x20
[  291.985891]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.991172]  ? rcu_softirq_qs+0x20/0x20
[  291.995148]  ? trace_hardirqs_off_caller+0x310/0x310
[  292.000252]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.005806]  ? check_preemption_disabled+0x48/0x280
[  292.010847]  handle_mm_fault+0x54f/0xc70
[  292.014920]  ? __handle_mm_fault+0x5be0/0x5be0
[  292.019512]  ? find_vma+0x34/0x190
[  292.023072]  __do_page_fault+0x5e8/0xe60
[  292.027135]  ? exit_to_usermode_loop+0x1f4/0x380
[  292.031907]  do_page_fault+0xf2/0x7e0
[  292.035709]  ? vmalloc_sync_all+0x30/0x30
[  292.039881]  ? error_entry+0x70/0xd0
[  292.043625]  ? trace_hardirqs_off_caller+0xbb/0x310
[  292.048656]  ? trace_hardirqs_on_caller+0xc0/0x310
[  292.053590]  ? syscall_return_slowpath+0x5e0/0x5e0
[  292.058517]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.063360]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.068390]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  292.073844]  ? prepare_exit_to_usermode+0x291/0x3b0
[  292.078878]  ? page_fault+0x8/0x30
[  292.082421]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.087276]  ? page_fault+0x8/0x30
[  292.090816]  page_fault+0x1e/0x30
[  292.094267] RIP: 0033:0x45db60
[  292.097472] Code: Bad RIP value.
[  292.100834] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  292.106207] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  292.113475] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  292.120740] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  292.128004] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  292.135272] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  292.142575] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  292.142580] warn_alloc_show_mem: 1 callbacks suppressed
[  292.142587] Mem-Info:
[  292.149854] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  292.155236] active_anon:54051 inactive_anon:192 isolated_anon:0
[  292.155236]  active_file:9 inactive_file:20 isolated_file:0
[  292.155236]  unevictable:0 dirty:0 writeback:0 unstable:0
[  292.155236]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  292.155236]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  292.155236]  free:13735 free_pcp:540 free_cma:0
[  292.157606] Call Trace:
[  292.166983] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  292.199733]  <IRQ>
[  292.202297] 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
[  292.229694]  dump_stack+0x244/0x39d
[  292.231827] lowmem_reserve[]: 0 2818 6321 6321
[  292.257921]  ? dump_stack_print_info.cold.1+0x20/0x20
[  292.261525] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  292.266096]  warn_alloc.cold.116+0xb7/0x1bd
[  292.271265] lowmem_reserve[]: 0 0 3503 3503
[  292.299010]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  292.303311] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  292.307617]  ? lock_downgrade+0x900/0x900
[  292.312443] lowmem_reserve[]: 0 0 0 0
[  292.341498]  ? trace_hardirqs_off+0xb8/0x310
[  292.345640] 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
[  292.349468]  ? trace_hardirqs_off+0xb8/0x310
[  292.353843] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  292.367389]  __alloc_pages_slowpath+0x26e8/0x2e10
[  292.371764] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  292.387057]  ? warn_alloc+0x120/0x120
[  292.391862] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  292.405992]  ? print_usage_bug+0xc0/0xc0
[  292.409770] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  292.418614]  ? warn_alloc+0x120/0x120
[  292.422667] 273 total pagecache pages
[  292.431222]  ? warn_alloc+0x120/0x120
[  292.434999] 0 pages in swap cache
[  292.438776]  ? print_usage_bug+0xc0/0xc0
[  292.442551] Swap cache stats: add 0, delete 0, find 0/0
[  292.445996]  ? print_usage_bug+0xc0/0xc0
[  292.450030] Free swap  = 0kB
[  292.455381]  ? __lock_acquire+0x62f/0x4c20
[  292.459414] Total swap = 0kB
[  292.462426]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.466628] 1965979 pages RAM
[  292.469637]  ? should_fail+0x22d/0xd01
[  292.475142] 0 pages HighMem/MovableOnly
[  292.478235]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.482094] 342853 pages reserved
[  292.486056]  ? __lock_acquire+0x62f/0x4c20
[  292.491131] 0 pages cma reserved
[  292.494587]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.498843] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  292.502139]  ? __lock_acquire+0x62f/0x4c20
[  292.502153]  ? should_fail+0x22d/0xd01
[  292.507319] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  292.513724]  ? find_held_lock+0x36/0x1c0
[  292.517932] syz-fuzzer cpuset=/ mems_allowed=0
[  292.521808]  ? mark_held_locks+0x130/0x130
[  292.544847]  ? mark_held_locks+0x130/0x130
[  292.549085]  ? zap_class+0x640/0x640
[  292.552799]  ? zap_class+0x640/0x640
[  292.556511]  ? print_usage_bug+0xc0/0xc0
[  292.560581]  ? do_raw_spin_unlock+0xa7/0x330
[  292.564999]  ? zap_class+0x640/0x640
[  292.568714]  ? print_usage_bug+0xc0/0xc0
[  292.572770]  ? wq_watchdog_touch+0x9c/0xfe
[  292.577002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.582537]  ? check_preemption_disabled+0x48/0x280
[  292.587589]  ? __lock_is_held+0xb5/0x140
[  292.591658]  __alloc_pages_nodemask+0xa80/0xde0
[  292.596342]  ? zap_class+0x640/0x640
[  292.600064]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  292.605093]  ? find_held_lock+0x36/0x1c0
[  292.609183]  ? ____cache_alloc_node+0x1c7/0x1e0
[  292.613876]  ? lock_downgrade+0x900/0x900
[  292.618034]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.623577]  cache_grow_begin+0xa5/0x8c0
[  292.627635]  ? do_raw_spin_unlock+0xa7/0x330
[  292.632049]  fallback_alloc+0x204/0x2e0
[  292.636033]  ____cache_alloc_node+0x1c7/0x1e0
[  292.640574]  kmem_cache_alloc_node+0xe3/0x730
[  292.645069]  ? ipv6_get_ifaddr+0x42e/0x620
[  292.649315]  __alloc_skb+0x119/0x770
[  292.653024]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.658306]  ? netdev_alloc_frag+0x1f0/0x1f0
[  292.662713]  ? lock_downgrade+0x900/0x900
[  292.666885]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.672423]  ? refcount_sub_and_test_checked+0x203/0x310
[  292.677879]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  292.683340]  ? addrconf_rs_timer+0x690/0x690
[  292.687759]  ndisc_alloc_skb+0x144/0x340
[  292.691824]  ndisc_send_rs+0x331/0x6e0
[  292.695712]  addrconf_rs_timer+0x314/0x690
[  292.699965]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.704203]  call_timer_fn+0x272/0x920
[  292.708087]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.712338]  ? process_timeout+0x40/0x40
[  292.716400]  ? __run_timers+0x7da/0xc70
[  292.720370]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.724863]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.729394]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.733642]  ? lockdep_hardirqs_on+0x296/0x5b0
[  292.738222]  ? trace_hardirqs_on+0xbd/0x310
[  292.742698]  ? kasan_check_read+0x11/0x20
[  292.746856]  ? __run_timers+0x7da/0xc70
[  292.750835]  ? trace_hardirqs_off_caller+0x310/0x310
[  292.755944]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.760186]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.764427]  __run_timers+0x7e5/0xc70
[  292.768233]  ? timer_fixup_init+0x70/0x70
[  292.772381]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  292.777417]  ? zap_class+0x640/0x640
[  292.781142]  ? enqueue_hrtimer+0x1a5/0x560
[  292.785376]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  292.790565]  ? find_held_lock+0x36/0x1c0
[  292.794625]  ? zap_class+0x640/0x640
[  292.798335]  ? pvclock_read_flags+0x160/0x160
[  292.802827]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.808367]  ? check_preemption_disabled+0x48/0x280
[  292.813379]  ? __lock_is_held+0xb5/0x140
[  292.817449]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.822994]  ? check_preemption_disabled+0x48/0x280
[  292.828015]  run_timer_softirq+0x52/0xb0
[  292.832075]  ? rcu_read_lock_sched_held+0x14f/0x180
[  292.837089]  __do_softirq+0x308/0xb7e
[  292.840894]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  292.845386]  ? lock_downgrade+0x900/0x900
[  292.849561]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  292.854672]  ? pvclock_read_flags+0x160/0x160
[  292.859193]  ? lapic_next_event+0x5a/0x90
[  292.863339]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.868886]  ? kvm_clock_read+0x18/0x30
[  292.872855]  ? kvm_sched_clock_read+0x9/0x20
[  292.877266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.882801]  ? check_preemption_disabled+0x48/0x280
[  292.887825]  irq_exit+0x17f/0x1c0
[  292.891275]  smp_apic_timer_interrupt+0x1cb/0x760
[  292.896146]  ? smp_reschedule_interrupt+0x109/0x650
[  292.901160]  ? smp_call_function_single_interrupt+0x650/0x650
[  292.907042]  ? interrupt_entry+0xb5/0xc0
[  292.911114]  ? trace_hardirqs_off_caller+0xbb/0x310
[  292.916124]  ? trace_hardirqs_off_caller+0xbb/0x310
[  292.921138]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.925984]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.931004]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.936045]  ? task_prio+0x50/0x50
[  292.939583]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.945125]  ? check_preemption_disabled+0x48/0x280
[  292.950144]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.954989]  apic_timer_interrupt+0xf/0x20
[  292.959209]  </IRQ>
[  292.961456] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  292.966441] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  292.985350] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  292.993051] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  293.000312] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  293.007576] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  293.014839] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  293.022105] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  293.029427]  skb_clone+0x1bb/0x500
[  293.032981]  ? finish_task_switch+0x2f4/0x910
[  293.037472]  ? skb_split+0x11e0/0x11e0
[  293.041360]  ? preempt_notifier_register+0x200/0x200
[  293.046468]  ? __switch_to_asm+0x34/0x70
[  293.050519]  ? __switch_to_asm+0x34/0x70
[  293.054566]  ? __switch_to_asm+0x40/0x70
[  293.058613]  ? __switch_to_asm+0x34/0x70
[  293.062672]  ? __switch_to_asm+0x40/0x70
[  293.066732]  ? __switch_to_asm+0x34/0x70
[  293.070797]  ? __switch_to_asm+0x40/0x70
[  293.074846]  ? __switch_to_asm+0x34/0x70
[  293.078905]  ? __switch_to_asm+0x34/0x70
[  293.082989]  ? __switch_to_asm+0x40/0x70
[  293.087072]  ? __switch_to_asm+0x34/0x70
[  293.091132]  bpf_clone_redirect+0xb9/0x490
[  293.095367]  ? __schedule+0x8d7/0x21d0
[  293.099259]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  293.104270]  ? __sched_text_start+0x8/0x8
[  293.108409]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  293.113173]  ? find_held_lock+0x36/0x1c0
[  293.117236]  ? lock_acquire+0x1ed/0x520
[  293.121219]  ? bpf_test_run+0x3cb/0x780
[  293.125195]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.130743]  ? check_preemption_disabled+0x48/0x280
[  293.135762]  ? kasan_check_read+0x11/0x20
[  293.139916]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.145192]  ? rcu_softirq_qs+0x20/0x20
[  293.149166]  ? preempt_schedule+0x4d/0x60
[  293.153327]  ? ___preempt_schedule+0x16/0x18
[  293.157764]  ? bpf_test_run+0x25d/0x780
[  293.161741]  ? netlink_diag_dump+0x2a0/0x2a0
[  293.166181]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.171721]  ? bpf_test_init.isra.10+0x70/0x100
[  293.176391]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  293.181150]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  293.186021]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  293.191556]  ? fput+0x130/0x1a0
[  293.194849]  ? __bpf_prog_get+0x9b/0x290
[  293.198933]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  293.203766]  ? bpf_prog_test_run+0x130/0x1a0
[  293.208171]  ? __x64_sys_bpf+0x3d8/0x520
[  293.212278]  ? bpf_prog_get+0x20/0x20
[  293.216105]  ? do_syscall_64+0x1b9/0x820
[  293.220159]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  293.225523]  ? syscall_return_slowpath+0x5e0/0x5e0
[  293.230446]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.235517]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  293.240544]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  293.247203]  ? __switch_to_asm+0x40/0x70
[  293.251254]  ? __switch_to_asm+0x34/0x70
[  293.255311]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.260149]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  293.265592] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  293.265688] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  293.272626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  293.272630] Call Trace:
[  293.272635]  <IRQ>
[  293.272650]  dump_stack+0x244/0x39d
[  293.272674]  ? dump_stack_print_info.cold.1+0x20/0x20
[  293.279212] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  293.288485]  warn_alloc.cold.116+0xb7/0x1bd
[  293.291188] syz-executor3 cpuset=syz3 mems_allowed=0
[  293.293327]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  293.293343]  ? lock_downgrade+0x900/0x900
[  293.331050]  ? trace_hardirqs_off+0xb8/0x310
[  293.335458]  ? trace_hardirqs_off+0xb8/0x310
[  293.339883]  __alloc_pages_slowpath+0x26e8/0x2e10
[  293.344741]  ? warn_alloc+0x120/0x120
[  293.348536]  ? print_usage_bug+0xc0/0xc0
[  293.352603]  ? warn_alloc+0x120/0x120
[  293.356396]  ? warn_alloc+0x120/0x120
[  293.360201]  ? print_usage_bug+0xc0/0xc0
[  293.364256]  ? kvm_clock_read+0x18/0x30
[  293.368236]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  293.373306]  ? print_usage_bug+0xc0/0xc0
[  293.377370]  ? __lock_acquire+0x62f/0x4c20
[  293.381600]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.387132]  ? should_fail+0x22d/0xd01
[  293.391043]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.396330]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  293.401455]  ? __lock_acquire+0x62f/0x4c20
[  293.405697]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  293.410790]  ? __lock_acquire+0x62f/0x4c20
[  293.415044]  ? should_fail+0x22d/0xd01
[  293.418920]  ? rcu_irq_exit+0x1a2/0x390
[  293.422897]  ? mark_held_locks+0x130/0x130
[  293.427129]  ? mark_held_locks+0x130/0x130
[  293.431375]  ? mark_held_locks+0xc7/0x130
[  293.435578]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  293.440621]  ? zap_class+0x640/0x640
[  293.444330]  ? print_usage_bug+0xc0/0xc0
[  293.448386]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.453927]  ? check_preemption_disabled+0x48/0x280
[  293.458966]  ? __lock_is_held+0xb5/0x140
[  293.463052]  __alloc_pages_nodemask+0xa80/0xde0
[  293.467714]  ? zap_class+0x640/0x640
[  293.471423]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  293.476455]  ? find_held_lock+0x36/0x1c0
[  293.480562]  ? ____cache_alloc_node+0x1c7/0x1e0
[  293.485241]  ? lock_downgrade+0x900/0x900
[  293.489438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.494975]  cache_grow_begin+0xa5/0x8c0
[  293.499063]  ? do_raw_spin_unlock+0xa7/0x330
[  293.503493]  fallback_alloc+0x204/0x2e0
[  293.507496]  ____cache_alloc_node+0x1c7/0x1e0
[  293.512000]  kmem_cache_alloc_node+0xe3/0x730
[  293.516538]  ? ipv6_get_ifaddr+0x42e/0x620
[  293.520775]  __alloc_skb+0x119/0x770
[  293.524506]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.529776]  ? netdev_alloc_frag+0x1f0/0x1f0
[  293.534173]  ? lock_downgrade+0x900/0x900
[  293.538336]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.543874]  ? refcount_sub_and_test_checked+0x203/0x310
[  293.549342]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  293.554802]  ? addrconf_rs_timer+0x690/0x690
[  293.559242]  ndisc_alloc_skb+0x144/0x340
[  293.563351]  ndisc_send_rs+0x331/0x6e0
[  293.567240]  addrconf_rs_timer+0x314/0x690
[  293.571475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.575719]  call_timer_fn+0x272/0x920
[  293.579704]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.583935]  ? process_timeout+0x40/0x40
[  293.587998]  ? mark_held_locks+0xc7/0x130
[  293.592153]  ? _raw_spin_unlock_irq+0x27/0x80
[  293.596647]  ? _raw_spin_unlock_irq+0x27/0x80
[  293.601144]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.605382]  ? lockdep_hardirqs_on+0x296/0x5b0
[  293.609967]  ? trace_hardirqs_on+0xbd/0x310
[  293.614301]  ? kasan_check_read+0x11/0x20
[  293.618461]  ? __run_timers+0x7da/0xc70
[  293.622435]  ? trace_hardirqs_off_caller+0x310/0x310
[  293.627553]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.631789]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.636019]  __run_timers+0x7e5/0xc70
[  293.639841]  ? timer_fixup_init+0x70/0x70
[  293.644019]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  293.649034]  ? zap_class+0x640/0x640
[  293.652754]  ? print_usage_bug+0xc0/0xc0
[  293.656819]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  293.662014]  ? find_held_lock+0x36/0x1c0
[  293.666112]  ? zap_class+0x640/0x640
[  293.669845]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.675393]  ? check_preemption_disabled+0x48/0x280
[  293.680433]  ? __lock_is_held+0xb5/0x140
[  293.684498]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.690035]  ? check_preemption_disabled+0x48/0x280
[  293.695055]  run_timer_softirq+0x52/0xb0
[  293.699118]  ? rcu_read_lock_sched_held+0x14f/0x180
[  293.704133]  __do_softirq+0x308/0xb7e
[  293.707935]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  293.712428]  ? lock_downgrade+0x900/0x900
[  293.716576]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  293.721687]  ? pvclock_read_flags+0x160/0x160
[  293.726201]  ? lapic_next_event+0x5a/0x90
[  293.730375]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.735970]  ? kvm_clock_read+0x18/0x30
[  293.739943]  ? kvm_sched_clock_read+0x9/0x20
[  293.744500]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.750034]  ? check_preemption_disabled+0x48/0x280
[  293.755058]  irq_exit+0x17f/0x1c0
[  293.758512]  smp_apic_timer_interrupt+0x1cb/0x760
[  293.763351]  ? smp_reschedule_interrupt+0x109/0x650
[  293.768363]  ? smp_call_function_single_interrupt+0x650/0x650
[  293.774242]  ? interrupt_entry+0xb5/0xc0
[  293.778312]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.783335]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.788348]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.793191]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.798203]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.803238]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.808118]  apic_timer_interrupt+0xf/0x20
[  293.812339]  </IRQ>
[  293.814585] RIP: 0010:dump_stack+0x358/0x39d
[  293.819002] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  293.837895] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  293.845600] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  293.852898] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  293.860175] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  293.867481] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  293.875310] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  293.882606]  ? dump_stack+0x34f/0x39d
[  293.886419]  ? dump_stack_print_info.cold.1+0x20/0x20
[  293.891612]  ? mark_held_locks+0x130/0x130
[  293.895846]  ? mark_held_locks+0x130/0x130
[  293.900093]  dump_header+0x27b/0xf72
[  293.903820]  ? pagefault_out_of_memory+0x197/0x197
[  293.908754]  ? __lock_acquire+0x62f/0x4c20
[  293.913002]  ? percpu_ref_get_many+0x240/0x240
[  293.917594]  ? print_usage_bug+0xc0/0xc0
[  293.921656]  ? zap_class+0x640/0x640
[  293.925388]  ? print_usage_bug+0xc0/0xc0
[  293.929481]  ? print_usage_bug+0xc0/0xc0
[  293.933545]  ? zap_class+0x640/0x640
[  293.937262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.942841]  ? find_held_lock+0x36/0x1c0
[  293.946926]  ? mark_held_locks+0xc7/0x130
[  293.951071]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  293.956180]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  293.961294]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  293.965878]  ? trace_hardirqs_on+0xbd/0x310
[  293.970202]  ? kasan_check_read+0x11/0x20
[  293.974350]  ? ___ratelimit+0x3b4/0x672
[  293.978336]  ? trace_hardirqs_off_caller+0x310/0x310
[  293.983452]  ? trace_hardirqs_on+0x310/0x310
[  293.987875]  ? lock_downgrade+0x900/0x900
[  293.992044]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  293.997159]  ? ___ratelimit+0x3b9/0x672
[  294.001128]  ? idr_get_free+0xf70/0xf70
[  294.005097]  ? find_held_lock+0x36/0x1c0
[  294.009201]  oom_kill_process.cold.27+0x10/0x903
[  294.013961]  ? zap_class+0x640/0x640
[  294.017675]  ? check_preemption_disabled+0x48/0x280
[  294.025122]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  294.030059]  ? kasan_check_read+0x11/0x20
[  294.034198]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.039485]  ? oom_evaluate_task+0x540/0x540
[  294.043939]  ? find_held_lock+0x36/0x1c0
[  294.048050]  ? out_of_memory+0x974/0x1430
[  294.052196]  ? lock_downgrade+0x900/0x900
[  294.056335]  ? check_preemption_disabled+0x48/0x280
[  294.061352]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  294.066311]  ? kasan_check_read+0x11/0x20
[  294.070486]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.075762]  ? rcu_softirq_qs+0x20/0x20
[  294.079743]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.085277]  ? oom_evaluate_task+0x302/0x540
[  294.089691]  out_of_memory+0xa84/0x1430
[  294.093675]  ? oom_killer_disable+0x3a0/0x3a0
[  294.098171]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  294.103114]  ? __ww_mutex_check_waiters+0x160/0x160
[  294.108155]  __alloc_pages_slowpath+0x2354/0x2e10
[  294.113020]  ? warn_alloc+0x120/0x120
[  294.116813]  ? mark_held_locks+0x130/0x130
[  294.121046]  ? find_get_entry+0xaae/0x1120
[  294.125285]  ? filemap_map_pages+0x1a20/0x1a20
[  294.129889]  ? zap_class+0x640/0x640
[  294.133606]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.139157]  ? check_preemption_disabled+0x48/0x280
[  294.144217]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.149755]  ? should_fail+0x22d/0xd01
[  294.153650]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  294.158767]  ? zap_class+0x640/0x640
[  294.162509]  ? __lock_is_held+0xb5/0x140
[  294.166571]  ? mark_held_locks+0x130/0x130
[  294.170800]  ? lock_release+0xa00/0xa00
[  294.174784]  ? perf_trace_sched_process_exec+0x860/0x860
[  294.180236]  ? xa_load+0x2ba/0x460
[  294.183791]  ? lock_downgrade+0x900/0x900
[  294.187938]  ? __might_sleep+0x95/0x190
[  294.191907]  __alloc_pages_nodemask+0xa80/0xde0
[  294.196576]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  294.201584]  ? __page_cache_alloc+0x191/0x5c0
[  294.206074]  ? xa_load+0x2e1/0x460
[  294.209608]  ? xa_clear_mark+0x40/0x40
[  294.213542]  ? zap_class+0x640/0x640
[  294.217271]  ? zap_class+0x640/0x640
[  294.220976]  ? zap_class+0x640/0x640
[  294.224687]  ? __do_page_cache_readahead+0x663/0x810
[  294.229795]  ? find_held_lock+0x36/0x1c0
[  294.233908]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  294.239474]  alloc_pages_current+0x173/0x350
[  294.243902]  __page_cache_alloc+0x38c/0x5c0
[  294.248213]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  294.253137]  ? kasan_check_read+0x11/0x20
[  294.257282]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.262558]  ? generic_perform_write+0x6a0/0x6a0
[  294.267308]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.272837]  ? check_preemption_disabled+0x48/0x280
[  294.277854]  filemap_fault+0x1595/0x25f0
[  294.281945]  ? __lock_page_or_retry+0xa00/0xa00
[  294.286611]  ? mark_held_locks+0x130/0x130
[  294.290847]  ? filemap_map_pages+0xd6b/0x1a20
[  294.295345]  ? lock_downgrade+0x900/0x900
[  294.299486]  ? check_preemption_disabled+0x48/0x280
[  294.304496]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  294.309416]  ? kasan_check_read+0x11/0x20
[  294.313570]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.318836]  ? rcu_softirq_qs+0x20/0x20
[  294.322809]  ? filemap_map_pages+0xd92/0x1a20
[  294.327312]  ? print_usage_bug+0xc0/0xc0
[  294.331384]  ? find_get_entries_tag+0x1400/0x1400
[  294.336216]  ? __kasan_slab_free+0x102/0x150
[  294.340613]  ? kasan_slab_free+0xe/0x10
[  294.344572]  ? kmem_cache_free+0x83/0x290
[  294.348711]  ? __sigqueue_free.part.29+0x74/0x90
[  294.353470]  ? lock_acquire+0x1ed/0x520
[  294.357435]  ? ext4_filemap_fault+0x7a/0xad
[  294.361750]  ? lock_release+0xa00/0xa00
[  294.365718]  ? perf_trace_sched_process_exec+0x860/0x860
[  294.371156]  ? print_usage_bug+0xc0/0xc0
[  294.375220]  ? print_usage_bug+0xc0/0xc0
[  294.379320]  ? down_read+0x8d/0x120
[  294.382933]  ? ext4_filemap_fault+0x7a/0xad
[  294.387261]  ? __down_interruptible+0x700/0x700
[  294.391943]  ext4_filemap_fault+0x82/0xad
[  294.396115]  __do_fault+0x100/0x6b0
[  294.399761]  ? pmd_devmap_trans_unstable+0x220/0x220
[  294.404856]  ? mark_held_locks+0x130/0x130
[  294.409128]  ? mark_held_locks+0x130/0x130
[  294.413366]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  294.418906]  ? rcu_pm_notify+0xc0/0xc0
[  294.422785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.428312]  __handle_mm_fault+0x3ea0/0x5be0
[  294.432724]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  294.437609]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.442091]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  294.446678]  ? trace_hardirqs_on+0xbd/0x310
[  294.450987]  ? kasan_check_read+0x11/0x20
[  294.455145]  ? __set_current_blocked+0xdf/0x120
[  294.459821]  ? trace_hardirqs_off_caller+0x310/0x310
[  294.464936]  ? zap_class+0x640/0x640
[  294.468636]  ? zap_class+0x640/0x640
[  294.472345]  ? find_held_lock+0x36/0x1c0
[  294.476434]  ? handle_mm_fault+0x42a/0xc70
[  294.480666]  ? lock_downgrade+0x900/0x900
[  294.484808]  ? check_preemption_disabled+0x48/0x280
[  294.489818]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  294.494749]  ? kasan_check_read+0x11/0x20
[  294.498894]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.504164]  ? rcu_softirq_qs+0x20/0x20
[  294.508141]  ? trace_hardirqs_off_caller+0x310/0x310
[  294.513257]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.518818]  ? check_preemption_disabled+0x48/0x280
[  294.523855]  handle_mm_fault+0x54f/0xc70
[  294.527919]  ? __handle_mm_fault+0x5be0/0x5be0
[  294.532540]  ? find_vma+0x34/0x190
[  294.536074]  __do_page_fault+0x5e8/0xe60
[  294.540177]  ? exit_to_usermode_loop+0x1f4/0x380
[  294.544974]  do_page_fault+0xf2/0x7e0
[  294.548805]  ? vmalloc_sync_all+0x30/0x30
[  294.552949]  ? error_entry+0x70/0xd0
[  294.556660]  ? trace_hardirqs_off_caller+0xbb/0x310
[  294.561675]  ? trace_hardirqs_on_caller+0xc0/0x310
[  294.566618]  ? syscall_return_slowpath+0x5e0/0x5e0
[  294.571570]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.576432]  ? trace_hardirqs_on_caller+0x310/0x310
[  294.581450]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  294.586901]  ? prepare_exit_to_usermode+0x291/0x3b0
[  294.591912]  ? page_fault+0x8/0x30
[  294.595501]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.600373]  ? page_fault+0x8/0x30
[  294.603917]  page_fault+0x1e/0x30
[  294.607370] RIP: 0033:0x45db60
[  294.610569] Code: Bad RIP value.
[  294.613936] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  294.619291] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  294.626572] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  294.633841] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  294.641117] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  294.648381] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  294.655686] warn_alloc_show_mem: 1 callbacks suppressed
[  294.655697] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  294.655699] Mem-Info:
[  294.655726] active_anon:54051 inactive_anon:192 isolated_anon:0
[  294.655726]  active_file:9 inactive_file:20 isolated_file:0
[  294.655726]  unevictable:0 dirty:0 writeback:0 unstable:0
[  294.655726]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  294.655726]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  294.655726]  free:13735 free_pcp:540 free_cma:0
[  294.661078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  294.668368] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  294.670783] Call Trace:
[  294.703560] 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
[  294.712940]  <IRQ>
[  294.740333] lowmem_reserve[]: 0 2818 6321 6321
[  294.742913]  dump_stack+0x244/0x39d
[  294.769006] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  294.771147]  ? dump_stack_print_info.cold.1+0x20/0x20
[  294.775710] lowmem_reserve[]: 0 0 3503 3503
[  294.779332]  warn_alloc.cold.116+0xb7/0x1bd
[  294.807071] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  294.812251]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  294.816560] lowmem_reserve[]: 0 0 0 0
[  294.820904]  ? lock_downgrade+0x900/0x900
[  294.849947] 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
[  294.854782]  ? trace_hardirqs_off+0xb8/0x310
[  294.858578] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  294.862719]  ? trace_hardirqs_off+0xb8/0x310
[  294.876220] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  294.880619]  __alloc_pages_slowpath+0x26e8/0x2e10
[  294.896025] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  294.900480]  ? warn_alloc+0x120/0x120
[  294.914566] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  294.919434]  ? warn_alloc+0x120/0x120
[  294.928242] 273 total pagecache pages
[  294.932034]  ? __bfs+0x321/0x780
[  294.940589] 0 pages in swap cache
[  294.944376]  ? print_usage_bug+0xc0/0xc0
[  294.948161] Swap cache stats: add 0, delete 0, find 0/0
[  294.951512]  ? lockdep_on+0x50/0x50
[  294.954953] Free swap  = 0kB
[  294.959012]  ? print_bfs_bug+0x80/0x80
[  294.964379] Total swap = 0kB
[  294.967999]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.970981] 1965979 pages RAM
[  294.974855]  ? should_fail+0x22d/0xd01
[  294.977837] 0 pages HighMem/MovableOnly
[  294.977845] 342853 pages reserved
[  294.983408]  ? __bfs+0x321/0x780
[  294.986488] 0 pages cma reserved
[  294.990376]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  294.994385] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  294.997765]  ? __lock_acquire+0x62f/0x4c20
[  295.001186] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  295.004462]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.009542] syz-fuzzer cpuset=/ mems_allowed=0
[  295.016034]  ? __lock_acquire+0x2aff/0x4c20
[  295.044392]  ? should_fail+0x22d/0xd01
[  295.048269]  ? find_held_lock+0x36/0x1c0
[  295.052328]  ? mark_held_locks+0x130/0x130
[  295.056559]  ? mark_held_locks+0x130/0x130
[  295.060787]  ? kasan_check_read+0x11/0x20
[  295.064944]  ? __lock_acquire+0x2aff/0x4c20
[  295.069268]  ? zap_class+0x640/0x640
[  295.073010]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.078578]  ? check_preemption_disabled+0x48/0x280
[  295.083597]  ? __lock_is_held+0xb5/0x140
[  295.087659]  __alloc_pages_nodemask+0xa80/0xde0
[  295.092332]  ? zap_class+0x640/0x640
[  295.096069]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  295.101094]  ? find_held_lock+0x36/0x1c0
[  295.105159]  ? ____cache_alloc_node+0x1c7/0x1e0
[  295.109831]  ? lock_downgrade+0x900/0x900
[  295.114013]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.119571]  cache_grow_begin+0xa5/0x8c0
[  295.123644]  ? do_raw_spin_unlock+0xa7/0x330
[  295.128058]  fallback_alloc+0x204/0x2e0
[  295.132036]  ____cache_alloc_node+0x1c7/0x1e0
[  295.136538]  kmem_cache_alloc_node+0xe3/0x730
[  295.141030]  ? do_raw_spin_unlock+0xa7/0x330
[  295.145449]  ? do_raw_spin_trylock+0x270/0x270
[  295.150069]  __alloc_skb+0x119/0x770
[  295.153787]  ? netdev_alloc_frag+0x1f0/0x1f0
[  295.158199]  ? atomic_notifier_call_chain+0xc6/0x190
[  295.163299]  ? lock_downgrade+0x900/0x900
[  295.167470]  ? check_preemption_disabled+0x48/0x280
[  295.172516]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  295.177442]  ? kasan_check_read+0x11/0x20
[  295.181584]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.186853]  ? rcu_softirq_qs+0x20/0x20
[  295.190899]  ? kasan_check_read+0x11/0x20
[  295.195074]  ? do_raw_write_trylock+0x270/0x270
[  295.199788]  __neigh_notify+0x8c/0x160
[  295.203675]  ? neigh_connected_output+0x780/0x780
[  295.208518]  neigh_timer_handler+0x6cb/0xdf0
[  295.213006]  ? check_preemption_disabled+0x48/0x280
[  295.218033]  ? neigh_periodic_work+0xc60/0xc60
[  295.222611]  ? __lock_is_held+0xb5/0x140
[  295.226702]  call_timer_fn+0x272/0x920
[  295.230578]  ? neigh_periodic_work+0xc60/0xc60
[  295.235150]  ? process_timeout+0x40/0x40
[  295.239213]  ? __run_timers+0x7da/0xc70
[  295.243184]  ? _raw_spin_unlock_irq+0x27/0x80
[  295.247670]  ? _raw_spin_unlock_irq+0x27/0x80
[  295.252177]  ? neigh_periodic_work+0xc60/0xc60
[  295.256751]  ? lockdep_hardirqs_on+0x296/0x5b0
[  295.261326]  ? trace_hardirqs_on+0xbd/0x310
[  295.265637]  ? kasan_check_read+0x11/0x20
[  295.269776]  ? __run_timers+0x7da/0xc70
[  295.273777]  ? trace_hardirqs_off_caller+0x310/0x310
[  295.278943]  ? neigh_periodic_work+0xc60/0xc60
[  295.283547]  __run_timers+0x7e5/0xc70
[  295.287364]  ? timer_fixup_init+0x70/0x70
[  295.291511]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  295.296523]  ? zap_class+0x640/0x640
[  295.300252]  ? enqueue_hrtimer+0x1a5/0x560
[  295.304487]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  295.309683]  ? find_held_lock+0x36/0x1c0
[  295.313740]  ? zap_class+0x640/0x640
[  295.317464]  ? pvclock_read_flags+0x160/0x160
[  295.321964]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.327493]  ? check_preemption_disabled+0x48/0x280
[  295.332525]  ? __lock_is_held+0xb5/0x140
[  295.336591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.342123]  ? check_preemption_disabled+0x48/0x280
[  295.347134]  run_timer_softirq+0x52/0xb0
[  295.351192]  ? rcu_read_lock_sched_held+0x14f/0x180
[  295.356198]  __do_softirq+0x308/0xb7e
[  295.359995]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  295.364497]  ? lock_downgrade+0x900/0x900
[  295.368643]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  295.373763]  ? pvclock_read_flags+0x160/0x160
[  295.378272]  ? lapic_next_event+0x5a/0x90
[  295.382417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.387987]  ? kvm_clock_read+0x18/0x30
[  295.391958]  ? kvm_sched_clock_read+0x9/0x20
[  295.396364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.401902]  ? check_preemption_disabled+0x48/0x280
[  295.406932]  irq_exit+0x17f/0x1c0
[  295.410381]  smp_apic_timer_interrupt+0x1cb/0x760
[  295.415262]  ? smp_reschedule_interrupt+0x109/0x650
[  295.420324]  ? smp_call_function_single_interrupt+0x650/0x650
[  295.426203]  ? interrupt_entry+0xb5/0xc0
[  295.430292]  ? trace_hardirqs_off_caller+0xbb/0x310
[  295.435318]  ? trace_hardirqs_off_caller+0xbb/0x310
[  295.440358]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.445200]  ? trace_hardirqs_on_caller+0x310/0x310
[  295.450305]  ? trace_hardirqs_on_caller+0x310/0x310
[  295.455315]  ? task_prio+0x50/0x50
[  295.458849]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.464397]  ? check_preemption_disabled+0x48/0x280
[  295.469416]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.474278]  apic_timer_interrupt+0xf/0x20
[  295.478515]  </IRQ>
[  295.480760] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  295.485683] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  295.504605] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  295.512303] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  295.519590] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  295.526876] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  295.534156] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  295.541427] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  295.548754]  skb_clone+0x1bb/0x500
[  295.552299]  ? finish_task_switch+0x2f4/0x910
[  295.556812]  ? skb_split+0x11e0/0x11e0
[  295.560708]  ? preempt_notifier_register+0x200/0x200
[  295.565806]  ? __switch_to_asm+0x34/0x70
[  295.569864]  ? __switch_to_asm+0x34/0x70
[  295.573934]  ? __switch_to_asm+0x40/0x70
[  295.577994]  ? __switch_to_asm+0x34/0x70
[  295.582053]  ? __switch_to_asm+0x40/0x70
[  295.586111]  ? __switch_to_asm+0x34/0x70
[  295.590196]  ? __switch_to_asm+0x40/0x70
[  295.594270]  ? __switch_to_asm+0x34/0x70
[  295.598328]  ? __switch_to_asm+0x34/0x70
[  295.602384]  ? __switch_to_asm+0x40/0x70
[  295.606447]  ? __switch_to_asm+0x34/0x70
[  295.610512]  bpf_clone_redirect+0xb9/0x490
[  295.614762]  ? __schedule+0x8d7/0x21d0
[  295.618652]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  295.623669]  ? __sched_text_start+0x8/0x8
[  295.627818]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  295.632587]  ? find_held_lock+0x36/0x1c0
[  295.636670]  ? lock_acquire+0x1ed/0x520
[  295.640649]  ? bpf_test_run+0x3cb/0x780
[  295.644630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.650180]  ? check_preemption_disabled+0x48/0x280
[  295.655206]  ? kasan_check_read+0x11/0x20
[  295.659355]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.664630]  ? rcu_softirq_qs+0x20/0x20
[  295.668608]  ? preempt_schedule+0x4d/0x60
[  295.672756]  ? ___preempt_schedule+0x16/0x18
[  295.677176]  ? bpf_test_run+0x25d/0x780
[  295.681169]  ? netlink_diag_dump+0x2a0/0x2a0
[  295.685584]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.691119]  ? bpf_test_init.isra.10+0x70/0x100
[  295.695798]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  295.700569]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  295.705410]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  295.710950]  ? fput+0x130/0x1a0
[  295.714230]  ? __bpf_prog_get+0x9b/0x290
[  295.718300]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  295.723144]  ? bpf_prog_test_run+0x130/0x1a0
[  295.727558]  ? __x64_sys_bpf+0x3d8/0x520
[  295.731624]  ? bpf_prog_get+0x20/0x20
[  295.735443]  ? do_syscall_64+0x1b9/0x820
[  295.739504]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  295.745060]  ? syscall_return_slowpath+0x5e0/0x5e0
[  295.749994]  ? trace_hardirqs_on_caller+0x310/0x310
[  295.755011]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  295.760033]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  295.766696]  ? __switch_to_asm+0x40/0x70
[  295.770753]  ? __switch_to_asm+0x34/0x70
[  295.774818]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.779670]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  295.785050] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  295.785178] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  295.792071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  295.802538] syz-executor3 cpuset=syz3 mems_allowed=0
[  295.811888] Call Trace:
[  295.819550]  <IRQ>
[  295.821703]  dump_stack+0x244/0x39d
[  295.825338]  ? dump_stack_print_info.cold.1+0x20/0x20
[  295.830543]  warn_alloc.cold.116+0xb7/0x1bd
[  295.834876]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  295.839740]  ? lock_downgrade+0x900/0x900
[  295.843895]  ? trace_hardirqs_off+0xb8/0x310
[  295.848338]  ? trace_hardirqs_off+0xb8/0x310
[  295.852774]  __alloc_pages_slowpath+0x26e8/0x2e10
[  295.857645]  ? warn_alloc+0x120/0x120
[  295.861466]  ? print_usage_bug+0xc0/0xc0
[  295.865528]  ? warn_alloc+0x120/0x120
[  295.869338]  ? warn_alloc+0x120/0x120
[  295.873139]  ? print_usage_bug+0xc0/0xc0
[  295.877657]  ? print_usage_bug+0xc0/0xc0
[  295.881723]  ? __lock_acquire+0x62f/0x4c20
[  295.885965]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.891500]  ? should_fail+0x22d/0xd01
[  295.895389]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.900492]  ? __lock_acquire+0x62f/0x4c20
[  295.904732]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.909847]  ? __lock_acquire+0x62f/0x4c20
[  295.914086]  ? should_fail+0x22d/0xd01
[  295.917971]  ? find_held_lock+0x36/0x1c0
[  295.922040]  ? mark_held_locks+0x130/0x130
[  295.926310]  ? mark_held_locks+0x130/0x130
[  295.930545]  ? zap_class+0x640/0x640
[  295.934258]  ? zap_class+0x640/0x640
[  295.937975]  ? print_usage_bug+0xc0/0xc0
[  295.942035]  ? do_raw_spin_unlock+0xa7/0x330
[  295.946457]  ? zap_class+0x640/0x640
[  295.950200]  ? print_usage_bug+0xc0/0xc0
[  295.954276]  ? wq_watchdog_touch+0x9c/0xfe
[  295.958543]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.964081]  ? check_preemption_disabled+0x48/0x280
[  295.969109]  ? __lock_is_held+0xb5/0x140
[  295.973174]  __alloc_pages_nodemask+0xa80/0xde0
[  295.977843]  ? zap_class+0x640/0x640
[  295.981581]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  295.986608]  ? find_held_lock+0x36/0x1c0
[  295.990685]  ? ____cache_alloc_node+0x1c7/0x1e0
[  295.995356]  ? lock_downgrade+0x900/0x900
[  295.999507]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.005043]  cache_grow_begin+0xa5/0x8c0
[  296.009101]  ? do_raw_spin_unlock+0xa7/0x330
[  296.013514]  fallback_alloc+0x204/0x2e0
[  296.017492]  ____cache_alloc_node+0x1c7/0x1e0
[  296.021986]  kmem_cache_alloc_node+0xe3/0x730
[  296.026474]  ? ipv6_get_ifaddr+0x42e/0x620
[  296.030711]  __alloc_skb+0x119/0x770
[  296.034435]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.039729]  ? netdev_alloc_frag+0x1f0/0x1f0
[  296.044132]  ? lock_downgrade+0x900/0x900
[  296.048301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.053832]  ? refcount_sub_and_test_checked+0x203/0x310
[  296.059280]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  296.064727]  ? addrconf_rs_timer+0x690/0x690
[  296.069139]  ndisc_alloc_skb+0x144/0x340
[  296.073196]  ndisc_send_rs+0x331/0x6e0
[  296.077098]  addrconf_rs_timer+0x314/0x690
[  296.081346]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.085586]  call_timer_fn+0x272/0x920
[  296.089472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.093714]  ? process_timeout+0x40/0x40
[  296.097778]  ? mark_held_locks+0xc7/0x130
[  296.101922]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.106409]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.110961]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.115194]  ? lockdep_hardirqs_on+0x296/0x5b0
[  296.119773]  ? trace_hardirqs_on+0xbd/0x310
[  296.124118]  ? kasan_check_read+0x11/0x20
[  296.128279]  ? __run_timers+0x7da/0xc70
[  296.132265]  ? trace_hardirqs_off_caller+0x310/0x310
[  296.137401]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.141652]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.145906]  __run_timers+0x7e5/0xc70
[  296.149716]  ? timer_fixup_init+0x70/0x70
[  296.153882]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  296.158902]  ? zap_class+0x640/0x640
[  296.162630]  ? print_usage_bug+0xc0/0xc0
[  296.166690]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  296.171888]  ? find_held_lock+0x36/0x1c0
[  296.175955]  ? zap_class+0x640/0x640
[  296.179676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.185215]  ? check_preemption_disabled+0x48/0x280
[  296.190240]  ? __lock_is_held+0xb5/0x140
[  296.194302]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.199837]  ? check_preemption_disabled+0x48/0x280
[  296.204859]  run_timer_softirq+0x52/0xb0
[  296.208928]  ? rcu_read_lock_sched_held+0x14f/0x180
[  296.213944]  __do_softirq+0x308/0xb7e
[  296.217743]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  296.222232]  ? lock_downgrade+0x900/0x900
[  296.226393]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  296.231499]  ? pvclock_read_flags+0x160/0x160
[  296.235993]  ? lapic_next_event+0x5a/0x90
[  296.240134]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.245712]  ? kvm_clock_read+0x18/0x30
[  296.249683]  ? kvm_sched_clock_read+0x9/0x20
[  296.254088]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.259625]  ? check_preemption_disabled+0x48/0x280
[  296.264645]  irq_exit+0x17f/0x1c0
[  296.268132]  smp_apic_timer_interrupt+0x1cb/0x760
[  296.272975]  ? smp_reschedule_interrupt+0x109/0x650
[  296.277991]  ? smp_call_function_single_interrupt+0x650/0x650
[  296.283914]  ? interrupt_entry+0xb5/0xc0
[  296.287973]  ? trace_hardirqs_off_caller+0xbb/0x310
[  296.292985]  ? trace_hardirqs_off_caller+0xbb/0x310
[  296.297999]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.302840]  ? trace_hardirqs_on_caller+0x310/0x310
[  296.307884]  ? trace_hardirqs_on_caller+0x310/0x310
[  296.312923]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.317783]  apic_timer_interrupt+0xf/0x20
[  296.322007]  </IRQ>
[  296.324257] RIP: 0010:dump_stack+0x358/0x39d
[  296.328693] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  296.347597] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  296.355296] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  296.362571] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  296.369832] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  296.377146] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  296.384418] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  296.391709]  ? dump_stack+0x34f/0x39d
[  296.395547]  ? dump_stack_print_info.cold.1+0x20/0x20
[  296.400734]  ? mark_held_locks+0x130/0x130
[  296.404964]  ? mark_held_locks+0x130/0x130
[  296.409195]  dump_header+0x27b/0xf72
[  296.412920]  ? pagefault_out_of_memory+0x197/0x197
[  296.417845]  ? __lock_acquire+0x62f/0x4c20
[  296.422078]  ? percpu_ref_get_many+0x240/0x240
[  296.426693]  ? print_usage_bug+0xc0/0xc0
[  296.430771]  ? zap_class+0x640/0x640
[  296.434486]  ? print_usage_bug+0xc0/0xc0
[  296.438570]  ? print_usage_bug+0xc0/0xc0
[  296.442655]  ? zap_class+0x640/0x640
[  296.446371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.451908]  ? find_held_lock+0x36/0x1c0
[  296.455972]  ? mark_held_locks+0xc7/0x130
[  296.460130]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  296.465241]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  296.470357]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  296.474938]  ? trace_hardirqs_on+0xbd/0x310
[  296.479274]  ? kasan_check_read+0x11/0x20
[  296.483420]  ? ___ratelimit+0x3b4/0x672
[  296.487397]  ? trace_hardirqs_off_caller+0x310/0x310
[  296.492511]  ? trace_hardirqs_on+0x310/0x310
[  296.496916]  ? lock_downgrade+0x900/0x900
[  296.501065]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  296.506160]  ? ___ratelimit+0x3b9/0x672
[  296.510132]  ? idr_get_free+0xf70/0xf70
[  296.514115]  ? find_held_lock+0x36/0x1c0
[  296.518195]  oom_kill_process.cold.27+0x10/0x903
[  296.522946]  ? zap_class+0x640/0x640
[  296.526673]  ? check_preemption_disabled+0x48/0x280
[  296.531698]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.536617]  ? kasan_check_read+0x11/0x20
[  296.540757]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.546059]  ? oom_evaluate_task+0x540/0x540
[  296.550465]  ? find_held_lock+0x36/0x1c0
[  296.554532]  ? out_of_memory+0x974/0x1430
[  296.558706]  ? lock_downgrade+0x900/0x900
[  296.562853]  ? check_preemption_disabled+0x48/0x280
[  296.567896]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.572820]  ? kasan_check_read+0x11/0x20
[  296.576963]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.582237]  ? rcu_softirq_qs+0x20/0x20
[  296.586240]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.591789]  ? oom_evaluate_task+0x302/0x540
[  296.596203]  out_of_memory+0xa84/0x1430
[  296.600184]  ? oom_killer_disable+0x3a0/0x3a0
[  296.604687]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  296.609618]  ? __ww_mutex_check_waiters+0x160/0x160
[  296.614643]  __alloc_pages_slowpath+0x2354/0x2e10
[  296.619517]  ? warn_alloc+0x120/0x120
[  296.623330]  ? mark_held_locks+0x130/0x130
[  296.627571]  ? find_get_entry+0xaae/0x1120
[  296.631812]  ? filemap_map_pages+0x1a20/0x1a20
[  296.636400]  ? zap_class+0x640/0x640
[  296.640121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.645657]  ? check_preemption_disabled+0x48/0x280
[  296.650699]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.656248]  ? should_fail+0x22d/0xd01
[  296.660143]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  296.665248]  ? zap_class+0x640/0x640
[  296.668988]  ? __lock_is_held+0xb5/0x140
[  296.673054]  ? mark_held_locks+0x130/0x130
[  296.677290]  ? lock_release+0xa00/0xa00
[  296.681263]  ? perf_trace_sched_process_exec+0x860/0x860
[  296.686712]  ? xa_load+0x2ba/0x460
[  296.690251]  ? lock_downgrade+0x900/0x900
[  296.694408]  ? __might_sleep+0x95/0x190
[  296.698394]  __alloc_pages_nodemask+0xa80/0xde0
[  296.703089]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  296.708105]  ? __page_cache_alloc+0x191/0x5c0
[  296.712603]  ? xa_load+0x2e1/0x460
[  296.716147]  ? xa_clear_mark+0x40/0x40
[  296.720034]  ? zap_class+0x640/0x640
[  296.723758]  ? zap_class+0x640/0x640
[  296.727469]  ? zap_class+0x640/0x640
[  296.731176]  ? __do_page_cache_readahead+0x663/0x810
[  296.736283]  ? find_held_lock+0x36/0x1c0
[  296.740369]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  296.745944]  alloc_pages_current+0x173/0x350
[  296.750357]  __page_cache_alloc+0x38c/0x5c0
[  296.754693]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.759619]  ? kasan_check_read+0x11/0x20
[  296.763765]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.769057]  ? generic_perform_write+0x6a0/0x6a0
[  296.773810]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.779342]  ? check_preemption_disabled+0x48/0x280
[  296.784375]  filemap_fault+0x1595/0x25f0
[  296.788447]  ? __lock_page_or_retry+0xa00/0xa00
[  296.793130]  ? mark_held_locks+0x130/0x130
[  296.797372]  ? filemap_map_pages+0xd6b/0x1a20
[  296.801865]  ? lock_downgrade+0x900/0x900
[  296.806051]  ? check_preemption_disabled+0x48/0x280
[  296.811076]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.816000]  ? kasan_check_read+0x11/0x20
[  296.820142]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.825443]  ? rcu_softirq_qs+0x20/0x20
[  296.829429]  ? filemap_map_pages+0xd92/0x1a20
[  296.833932]  ? print_usage_bug+0xc0/0xc0
[  296.838000]  ? find_get_entries_tag+0x1400/0x1400
[  296.842839]  ? __kasan_slab_free+0x102/0x150
[  296.847269]  ? kasan_slab_free+0xe/0x10
[  296.851244]  ? kmem_cache_free+0x83/0x290
[  296.855408]  ? __sigqueue_free.part.29+0x74/0x90
[  296.860179]  ? lock_acquire+0x1ed/0x520
[  296.864153]  ? ext4_filemap_fault+0x7a/0xad
[  296.868480]  ? lock_release+0xa00/0xa00
[  296.872483]  ? perf_trace_sched_process_exec+0x860/0x860
[  296.877930]  ? print_usage_bug+0xc0/0xc0
[  296.881991]  ? print_usage_bug+0xc0/0xc0
[  296.886066]  ? down_read+0x8d/0x120
[  296.889690]  ? ext4_filemap_fault+0x7a/0xad
[  296.894011]  ? __down_interruptible+0x700/0x700
[  296.898709]  ext4_filemap_fault+0x82/0xad
[  296.902858]  __do_fault+0x100/0x6b0
[  296.906497]  ? pmd_devmap_trans_unstable+0x220/0x220
[  296.911613]  ? mark_held_locks+0x130/0x130
[  296.915850]  ? mark_held_locks+0x130/0x130
[  296.920136]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  296.925691]  ? rcu_pm_notify+0xc0/0xc0
[  296.929587]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.935129]  __handle_mm_fault+0x3ea0/0x5be0
[  296.939546]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  296.944397]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.948899]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  296.953485]  ? trace_hardirqs_on+0xbd/0x310
[  296.957809]  ? kasan_check_read+0x11/0x20
[  296.961950]  ? __set_current_blocked+0xdf/0x120
[  296.966616]  ? trace_hardirqs_off_caller+0x310/0x310
[  296.971736]  ? zap_class+0x640/0x640
[  296.975442]  ? zap_class+0x640/0x640
[  296.979155]  ? find_held_lock+0x36/0x1c0
[  296.983222]  ? handle_mm_fault+0x42a/0xc70
[  296.987469]  ? lock_downgrade+0x900/0x900
[  296.991630]  ? check_preemption_disabled+0x48/0x280
[  296.996645]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  297.001573]  ? kasan_check_read+0x11/0x20
[  297.005716]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.010986]  ? rcu_softirq_qs+0x20/0x20
[  297.014969]  ? trace_hardirqs_off_caller+0x310/0x310
[  297.020071]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.025602]  ? check_preemption_disabled+0x48/0x280
[  297.030635]  handle_mm_fault+0x54f/0xc70
[  297.034699]  ? __handle_mm_fault+0x5be0/0x5be0
[  297.039294]  ? find_vma+0x34/0x190
[  297.042835]  __do_page_fault+0x5e8/0xe60
[  297.046894]  ? exit_to_usermode_loop+0x1f4/0x380
[  297.051652]  do_page_fault+0xf2/0x7e0
[  297.055452]  ? vmalloc_sync_all+0x30/0x30
[  297.059595]  ? error_entry+0x70/0xd0
[  297.063324]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.068378]  ? trace_hardirqs_on_caller+0xc0/0x310
[  297.073326]  ? syscall_return_slowpath+0x5e0/0x5e0
[  297.078246]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.083148]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.088195]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  297.093653]  ? prepare_exit_to_usermode+0x291/0x3b0
[  297.098674]  ? page_fault+0x8/0x30
[  297.102215]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.107053]  ? page_fault+0x8/0x30
[  297.110587]  page_fault+0x1e/0x30
[  297.114032] RIP: 0033:0x45db60
[  297.117234] Code: Bad RIP value.
[  297.120596] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  297.125959] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  297.133224] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  297.140488] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  297.147756] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  297.155038] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  297.162325] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  297.162331] warn_alloc_show_mem: 1 callbacks suppressed
[  297.162337] Mem-Info:
[  297.169606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  297.175001] active_anon:54051 inactive_anon:192 isolated_anon:0
[  297.175001]  active_file:9 inactive_file:20 isolated_file:0
[  297.175001]  unevictable:0 dirty:0 writeback:0 unstable:0
[  297.175001]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  297.175001]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  297.175001]  free:13735 free_pcp:540 free_cma:0
[  297.177374] Call Trace:
[  297.186775] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  297.219539]  <IRQ>
[  297.222107] 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
[  297.249522]  dump_stack+0x244/0x39d
[  297.251645] lowmem_reserve[]: 0 2818 6321 6321
[  297.277746]  ? dump_stack_print_info.cold.1+0x20/0x20
[  297.281342] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  297.285933]  warn_alloc.cold.116+0xb7/0x1bd
[  297.291105] lowmem_reserve[]: 0 0 3503 3503
[  297.318876]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  297.323176] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  297.327515]  ? lock_downgrade+0x900/0x900
[  297.332335] lowmem_reserve[]: 0 0 0 0
[  297.361682]  ? trace_hardirqs_off+0xb8/0x310
[  297.365801] 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
[  297.369594]  ? trace_hardirqs_off+0xb8/0x310
[  297.373974] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  297.387505]  __alloc_pages_slowpath+0x26e8/0x2e10
[  297.391895] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  297.407188]  ? warn_alloc+0x120/0x120
[  297.411988] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  297.426107]  ? warn_alloc+0x120/0x120
[  297.429891] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  297.438715]  ? warn_alloc+0x120/0x120
[  297.442490] 273 total pagecache pages
[  297.451057]  ? print_usage_bug+0xc0/0xc0
[  297.454841] 0 pages in swap cache
[  297.458624]  ? enqueue_hrtimer+0x1a5/0x560
[  297.462661] Swap cache stats: add 0, delete 0, find 0/0
[  297.466109]  ? print_usage_bug+0xc0/0xc0
[  297.470335] Free swap  = 0kB
[  297.475692]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  297.479727] Total swap = 0kB
[  297.482756]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.487917] 1965979 pages RAM
[  297.490929]  ? should_fail+0x22d/0xd01
[  297.496436] 0 pages HighMem/MovableOnly
[  297.499533]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  297.503398] 342853 pages reserved
[  297.507466]  ? __lock_acquire+0x62f/0x4c20
[  297.512540] 0 pages cma reserved
[  297.516004]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  297.520269] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  297.523600]  ? __lock_acquire+0x62f/0x4c20
[  297.523612]  ? should_fail+0x22d/0xd01
[  297.523635]  ? mark_held_locks+0x130/0x130
[  297.528779] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  297.535223]  ? mark_held_locks+0x130/0x130
[  297.539433] syz-fuzzer cpuset=/ mems_allowed=0
[  297.543321]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  297.571524]  ? ktime_get+0x2c1/0x400
[  297.575244]  ? zap_class+0x640/0x640
[  297.578958]  ? print_usage_bug+0xc0/0xc0
[  297.583026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.588586]  ? check_preemption_disabled+0x48/0x280
[  297.593611]  ? __lock_is_held+0xb5/0x140
[  297.597680]  __alloc_pages_nodemask+0xa80/0xde0
[  297.602384]  ? zap_class+0x640/0x640
[  297.606102]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  297.611128]  ? find_held_lock+0x36/0x1c0
[  297.615201]  ? ____cache_alloc_node+0x1c7/0x1e0
[  297.619876]  ? lock_downgrade+0x900/0x900
[  297.624081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.629623]  cache_grow_begin+0xa5/0x8c0
[  297.633683]  ? do_raw_spin_unlock+0xa7/0x330
[  297.638102]  fallback_alloc+0x204/0x2e0
[  297.642099]  ____cache_alloc_node+0x1c7/0x1e0
[  297.646601]  kmem_cache_alloc_node+0xe3/0x730
[  297.651124]  ? ipv6_get_ifaddr+0x42e/0x620
[  297.655373]  __alloc_skb+0x119/0x770
[  297.659115]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.664428]  ? netdev_alloc_frag+0x1f0/0x1f0
[  297.668838]  ? lock_downgrade+0x900/0x900
[  297.673003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.678554]  ? refcount_sub_and_test_checked+0x203/0x310
[  297.684012]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  297.689468]  ? addrconf_rs_timer+0x690/0x690
[  297.693899]  ndisc_alloc_skb+0x144/0x340
[  297.697969]  ndisc_send_rs+0x331/0x6e0
[  297.701862]  addrconf_rs_timer+0x314/0x690
[  297.706115]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.710362]  call_timer_fn+0x272/0x920
[  297.714249]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.718520]  ? process_timeout+0x40/0x40
[  297.722587]  ? __run_timers+0x7da/0xc70
[  297.726565]  ? _raw_spin_unlock_irq+0x27/0x80
[  297.731056]  ? _raw_spin_unlock_irq+0x27/0x80
[  297.735561]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.739798]  ? lockdep_hardirqs_on+0x296/0x5b0
[  297.744837]  ? trace_hardirqs_on+0xbd/0x310
[  297.749161]  ? kasan_check_read+0x11/0x20
[  297.753310]  ? __run_timers+0x7da/0xc70
[  297.757289]  ? trace_hardirqs_off_caller+0x310/0x310
[  297.762417]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.766683]  __run_timers+0x7e5/0xc70
[  297.770507]  ? timer_fixup_init+0x70/0x70
[  297.774678]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  297.779692]  ? zap_class+0x640/0x640
[  297.783415]  ? enqueue_hrtimer+0x1a5/0x560
[  297.787669]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  297.792884]  ? find_held_lock+0x36/0x1c0
[  297.796951]  ? zap_class+0x640/0x640
[  297.800665]  ? pvclock_read_flags+0x160/0x160
[  297.805162]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.810709]  ? check_preemption_disabled+0x48/0x280
[  297.815740]  ? __lock_is_held+0xb5/0x140
[  297.819799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.825344]  ? check_preemption_disabled+0x48/0x280
[  297.830379]  run_timer_softirq+0x52/0xb0
[  297.834454]  ? rcu_read_lock_sched_held+0x14f/0x180
[  297.839508]  __do_softirq+0x308/0xb7e
[  297.843338]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  297.847828]  ? lock_downgrade+0x900/0x900
[  297.851997]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  297.857104]  ? pvclock_read_flags+0x160/0x160
[  297.861615]  ? lapic_next_event+0x5a/0x90
[  297.865758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.871298]  ? kvm_clock_read+0x18/0x30
[  297.875461]  ? kvm_sched_clock_read+0x9/0x20
[  297.879877]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.885433]  ? check_preemption_disabled+0x48/0x280
[  297.890456]  irq_exit+0x17f/0x1c0
[  297.893920]  smp_apic_timer_interrupt+0x1cb/0x760
[  297.898758]  ? smp_reschedule_interrupt+0x109/0x650
[  297.903772]  ? smp_call_function_single_interrupt+0x650/0x650
[  297.909667]  ? interrupt_entry+0xb5/0xc0
[  297.913736]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.918748]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.923771]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.928621]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.933864]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.938890]  ? task_prio+0x50/0x50
[  297.942508]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.948070]  ? check_preemption_disabled+0x48/0x280
[  297.953101]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.957953]  apic_timer_interrupt+0xf/0x20
[  297.962182]  </IRQ>
[  297.964416] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  297.969342] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  297.988259] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  297.995970] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  298.003231] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  298.010510] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  298.017772] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  298.025032] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  298.032328]  skb_clone+0x1bb/0x500
[  298.035866]  ? finish_task_switch+0x2f4/0x910
[  298.040368]  ? skb_split+0x11e0/0x11e0
[  298.044254]  ? preempt_notifier_register+0x200/0x200
[  298.049353]  ? __switch_to_asm+0x34/0x70
[  298.053412]  ? __switch_to_asm+0x34/0x70
[  298.057465]  ? __switch_to_asm+0x40/0x70
[  298.061515]  ? __switch_to_asm+0x34/0x70
[  298.065567]  ? __switch_to_asm+0x40/0x70
[  298.069615]  ? __switch_to_asm+0x34/0x70
[  298.073680]  ? __switch_to_asm+0x40/0x70
[  298.077731]  ? __switch_to_asm+0x34/0x70
[  298.081784]  ? __switch_to_asm+0x34/0x70
[  298.085836]  ? __switch_to_asm+0x40/0x70
[  298.089895]  ? __switch_to_asm+0x34/0x70
[  298.093970]  bpf_clone_redirect+0xb9/0x490
[  298.098206]  ? __schedule+0x8d7/0x21d0
[  298.102096]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  298.107124]  ? __sched_text_start+0x8/0x8
[  298.111281]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  298.116056]  ? find_held_lock+0x36/0x1c0
[  298.120122]  ? lock_acquire+0x1ed/0x520
[  298.124092]  ? bpf_test_run+0x3cb/0x780
[  298.128058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.133597]  ? check_preemption_disabled+0x48/0x280
[  298.138615]  ? kasan_check_read+0x11/0x20
[  298.142762]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.148032]  ? rcu_softirq_qs+0x20/0x20
[  298.152004]  ? preempt_schedule+0x4d/0x60
[  298.156149]  ? ___preempt_schedule+0x16/0x18
[  298.160564]  ? bpf_test_run+0x25d/0x780
[  298.164543]  ? netlink_diag_dump+0x2a0/0x2a0
[  298.168975]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.174522]  ? bpf_test_init.isra.10+0x70/0x100
[  298.179194]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  298.183956]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  298.188806]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  298.194353]  ? fput+0x130/0x1a0
[  298.197628]  ? __bpf_prog_get+0x9b/0x290
[  298.201687]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  298.206524]  ? bpf_prog_test_run+0x130/0x1a0
[  298.210962]  ? __x64_sys_bpf+0x3d8/0x520
[  298.215019]  ? bpf_prog_get+0x20/0x20
[  298.218859]  ? do_syscall_64+0x1b9/0x820
[  298.222951]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  298.228356]  ? syscall_return_slowpath+0x5e0/0x5e0
[  298.233282]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.238294]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  298.243306]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  298.250009]  ? __switch_to_asm+0x40/0x70
[  298.254062]  ? __switch_to_asm+0x34/0x70
[  298.258123]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.262962]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  298.268339] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  298.268398] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  298.275357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  298.275361] Call Trace:
[  298.275366]  <IRQ>
[  298.275380]  dump_stack+0x244/0x39d
[  298.275395]  ? dump_stack_print_info.cold.1+0x20/0x20
[  298.281993] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  298.291310]  warn_alloc.cold.116+0xb7/0x1bd
[  298.293881] syz-executor3 cpuset=syz3 mems_allowed=0
[  298.296015]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  298.329550]  ? lock_downgrade+0x900/0x900
[  298.333704]  ? trace_hardirqs_off+0xb8/0x310
[  298.338159]  ? trace_hardirqs_off+0xb8/0x310
[  298.342591]  __alloc_pages_slowpath+0x26e8/0x2e10
[  298.347465]  ? warn_alloc+0x120/0x120
[  298.351279]  ? print_usage_bug+0xc0/0xc0
[  298.355366]  ? warn_alloc+0x120/0x120
[  298.359210]  ? warn_alloc+0x120/0x120
[  298.363005]  ? print_usage_bug+0xc0/0xc0
[  298.367082]  ? print_usage_bug+0xc0/0xc0
[  298.371194]  ? __lock_acquire+0x62f/0x4c20
[  298.375442]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.380971]  ? should_fail+0x22d/0xd01
[  298.384854]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  298.389971]  ? __lock_acquire+0x62f/0x4c20
[  298.394202]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  298.399299]  ? __lock_acquire+0x62f/0x4c20
[  298.403528]  ? should_fail+0x22d/0xd01
[  298.407430]  ? find_held_lock+0x36/0x1c0
[  298.411493]  ? mark_held_locks+0x130/0x130
[  298.415725]  ? mark_held_locks+0x130/0x130
[  298.419951]  ? zap_class+0x640/0x640
[  298.423653]  ? zap_class+0x640/0x640
[  298.427384]  ? print_usage_bug+0xc0/0xc0
[  298.431449]  ? do_raw_spin_unlock+0xa7/0x330
[  298.435857]  ? zap_class+0x640/0x640
[  298.439600]  ? print_usage_bug+0xc0/0xc0
[  298.443656]  ? wq_watchdog_touch+0x9c/0xfe
[  298.447894]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.453440]  ? check_preemption_disabled+0x48/0x280
[  298.458475]  ? __lock_is_held+0xb5/0x140
[  298.462534]  __alloc_pages_nodemask+0xa80/0xde0
[  298.467243]  ? zap_class+0x640/0x640
[  298.470955]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  298.475974]  ? find_held_lock+0x36/0x1c0
[  298.480064]  ? ____cache_alloc_node+0x1c7/0x1e0
[  298.484728]  ? lock_downgrade+0x900/0x900
[  298.488898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.494435]  cache_grow_begin+0xa5/0x8c0
[  298.498491]  ? do_raw_spin_unlock+0xa7/0x330
[  298.502902]  fallback_alloc+0x204/0x2e0
[  298.506882]  ____cache_alloc_node+0x1c7/0x1e0
[  298.511377]  kmem_cache_alloc_node+0xe3/0x730
[  298.515862]  ? ipv6_get_ifaddr+0x42e/0x620
[  298.520105]  __alloc_skb+0x119/0x770
[  298.523807]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.529158]  ? netdev_alloc_frag+0x1f0/0x1f0
[  298.533568]  ? lock_downgrade+0x900/0x900
[  298.537726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.543286]  ? refcount_sub_and_test_checked+0x203/0x310
[  298.548731]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  298.554173]  ? addrconf_rs_timer+0x690/0x690
[  298.558586]  ndisc_alloc_skb+0x144/0x340
[  298.562660]  ndisc_send_rs+0x331/0x6e0
[  298.566555]  addrconf_rs_timer+0x314/0x690
[  298.570792]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.575033]  call_timer_fn+0x272/0x920
[  298.578912]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.583143]  ? process_timeout+0x40/0x40
[  298.587206]  ? mark_held_locks+0xc7/0x130
[  298.591380]  ? _raw_spin_unlock_irq+0x27/0x80
[  298.595901]  ? _raw_spin_unlock_irq+0x27/0x80
[  298.600395]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.604642]  ? lockdep_hardirqs_on+0x296/0x5b0
[  298.609229]  ? trace_hardirqs_on+0xbd/0x310
[  298.613552]  ? kasan_check_read+0x11/0x20
[  298.617702]  ? __run_timers+0x7da/0xc70
[  298.621703]  ? trace_hardirqs_off_caller+0x310/0x310
[  298.626811]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.631052]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.635282]  __run_timers+0x7e5/0xc70
[  298.639093]  ? timer_fixup_init+0x70/0x70
[  298.643263]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  298.648279]  ? zap_class+0x640/0x640
[  298.652013]  ? print_usage_bug+0xc0/0xc0
[  298.656077]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  298.661307]  ? find_held_lock+0x36/0x1c0
[  298.665402]  ? zap_class+0x640/0x640
[  298.669468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.675009]  ? check_preemption_disabled+0x48/0x280
[  298.680035]  ? __lock_is_held+0xb5/0x140
[  298.684113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.689671]  ? check_preemption_disabled+0x48/0x280
[  298.694694]  run_timer_softirq+0x52/0xb0
[  298.698757]  ? rcu_read_lock_sched_held+0x14f/0x180
[  298.703777]  __do_softirq+0x308/0xb7e
[  298.707581]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  298.712092]  ? lock_downgrade+0x900/0x900
[  298.716243]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  298.721353]  ? pvclock_read_flags+0x160/0x160
[  298.725877]  ? lapic_next_event+0x5a/0x90
[  298.730032]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.735591]  ? kvm_clock_read+0x18/0x30
[  298.739560]  ? kvm_sched_clock_read+0x9/0x20
[  298.743969]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.749505]  ? check_preemption_disabled+0x48/0x280
[  298.754544]  irq_exit+0x17f/0x1c0
[  298.758009]  smp_apic_timer_interrupt+0x1cb/0x760
[  298.762847]  ? smp_reschedule_interrupt+0x109/0x650
[  298.767866]  ? smp_call_function_single_interrupt+0x650/0x650
[  298.773755]  ? interrupt_entry+0xb5/0xc0
[  298.777808]  ? trace_hardirqs_off_caller+0xbb/0x310
[  298.782815]  ? trace_hardirqs_off_caller+0xbb/0x310
[  298.787833]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.792688]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.797712]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.802803]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.807646]  apic_timer_interrupt+0xf/0x20
[  298.811879]  </IRQ>
[  298.814115] RIP: 0010:dump_stack+0x358/0x39d
[  298.818541] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  298.837464] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  298.845165] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  298.852429] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  298.859694] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  298.866984] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  298.874252] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  298.881548]  ? dump_stack+0x34f/0x39d
[  298.885395]  ? dump_stack_print_info.cold.1+0x20/0x20
[  298.890586]  ? mark_held_locks+0x130/0x130
[  298.894825]  ? mark_held_locks+0x130/0x130
[  298.899067]  dump_header+0x27b/0xf72
[  298.902796]  ? pagefault_out_of_memory+0x197/0x197
[  298.907724]  ? __lock_acquire+0x62f/0x4c20
[  298.911957]  ? percpu_ref_get_many+0x240/0x240
[  298.916556]  ? print_usage_bug+0xc0/0xc0
[  298.920619]  ? zap_class+0x640/0x640
[  298.924330]  ? print_usage_bug+0xc0/0xc0
[  298.928402]  ? print_usage_bug+0xc0/0xc0
[  298.932478]  ? zap_class+0x640/0x640
[  298.936205]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.941744]  ? find_held_lock+0x36/0x1c0
[  298.945806]  ? mark_held_locks+0xc7/0x130
[  298.949949]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  298.955061]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  298.960180]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  298.964763]  ? trace_hardirqs_on+0xbd/0x310
[  298.969079]  ? kasan_check_read+0x11/0x20
[  298.973224]  ? ___ratelimit+0x3b4/0x672
[  298.977213]  ? trace_hardirqs_off_caller+0x310/0x310
[  298.982318]  ? trace_hardirqs_on+0x310/0x310
[  298.986729]  ? lock_downgrade+0x900/0x900
[  298.990886]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  298.995990]  ? ___ratelimit+0x3b9/0x672
[  298.999966]  ? idr_get_free+0xf70/0xf70
[  299.003937]  ? find_held_lock+0x36/0x1c0
[  299.008018]  oom_kill_process.cold.27+0x10/0x903
[  299.012789]  ? zap_class+0x640/0x640
[  299.016496]  ? check_preemption_disabled+0x48/0x280
[  299.021506]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  299.026425]  ? kasan_check_read+0x11/0x20
[  299.030560]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.035852]  ? oom_evaluate_task+0x540/0x540
[  299.040260]  ? find_held_lock+0x36/0x1c0
[  299.044318]  ? out_of_memory+0x974/0x1430
[  299.048459]  ? lock_downgrade+0x900/0x900
[  299.052601]  ? check_preemption_disabled+0x48/0x280
[  299.057627]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  299.062544]  ? kasan_check_read+0x11/0x20
[  299.066712]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.071980]  ? rcu_softirq_qs+0x20/0x20
[  299.075948]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.081476]  ? oom_evaluate_task+0x302/0x540
[  299.085913]  out_of_memory+0xa84/0x1430
[  299.089909]  ? oom_killer_disable+0x3a0/0x3a0
[  299.094432]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  299.099363]  ? __ww_mutex_check_waiters+0x160/0x160
[  299.104401]  __alloc_pages_slowpath+0x2354/0x2e10
[  299.109266]  ? warn_alloc+0x120/0x120
[  299.113058]  ? mark_held_locks+0x130/0x130
[  299.117292]  ? find_get_entry+0xaae/0x1120
[  299.121527]  ? filemap_map_pages+0x1a20/0x1a20
[  299.126115]  ? zap_class+0x640/0x640
[  299.129829]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.135376]  ? check_preemption_disabled+0x48/0x280
[  299.140420]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.145958]  ? should_fail+0x22d/0xd01
[  299.149843]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  299.154949]  ? zap_class+0x640/0x640
[  299.158696]  ? __lock_is_held+0xb5/0x140
[  299.162755]  ? mark_held_locks+0x130/0x130
[  299.166986]  ? lock_release+0xa00/0xa00
[  299.170972]  ? perf_trace_sched_process_exec+0x860/0x860
[  299.176449]  ? xa_load+0x2ba/0x460
[  299.179984]  ? lock_downgrade+0x900/0x900
[  299.184134]  ? __might_sleep+0x95/0x190
[  299.188155]  __alloc_pages_nodemask+0xa80/0xde0
[  299.192826]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  299.197836]  ? __page_cache_alloc+0x191/0x5c0
[  299.202338]  ? xa_load+0x2e1/0x460
[  299.205882]  ? xa_clear_mark+0x40/0x40
[  299.209766]  ? zap_class+0x640/0x640
[  299.213482]  ? zap_class+0x640/0x640
[  299.217192]  ? zap_class+0x640/0x640
[  299.220906]  ? __do_page_cache_readahead+0x663/0x810
[  299.226008]  ? find_held_lock+0x36/0x1c0
[  299.230074]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  299.235612]  alloc_pages_current+0x173/0x350
[  299.240028]  __page_cache_alloc+0x38c/0x5c0
[  299.244340]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  299.249267]  ? kasan_check_read+0x11/0x20
[  299.253412]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.258701]  ? generic_perform_write+0x6a0/0x6a0
[  299.263453]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.268985]  ? check_preemption_disabled+0x48/0x280
[  299.274040]  filemap_fault+0x1595/0x25f0
[  299.278112]  ? __lock_page_or_retry+0xa00/0xa00
[  299.282781]  ? mark_held_locks+0x130/0x130
[  299.287033]  ? filemap_map_pages+0xd6b/0x1a20
[  299.291579]  ? lock_downgrade+0x900/0x900
[  299.295726]  ? check_preemption_disabled+0x48/0x280
[  299.300741]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  299.305665]  ? kasan_check_read+0x11/0x20
[  299.309823]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.315127]  ? rcu_softirq_qs+0x20/0x20
[  299.319107]  ? filemap_map_pages+0xd92/0x1a20
[  299.323617]  ? print_usage_bug+0xc0/0xc0
[  299.327690]  ? find_get_entries_tag+0x1400/0x1400
[  299.332527]  ? __kasan_slab_free+0x102/0x150
[  299.336929]  ? kasan_slab_free+0xe/0x10
[  299.340940]  ? kmem_cache_free+0x83/0x290
[  299.345093]  ? __sigqueue_free.part.29+0x74/0x90
[  299.349856]  ? lock_acquire+0x1ed/0x520
[  299.353826]  ? ext4_filemap_fault+0x7a/0xad
[  299.358174]  ? lock_release+0xa00/0xa00
[  299.362228]  ? perf_trace_sched_process_exec+0x860/0x860
[  299.367674]  ? print_usage_bug+0xc0/0xc0
[  299.371725]  ? print_usage_bug+0xc0/0xc0
[  299.375796]  ? down_read+0x8d/0x120
[  299.379415]  ? ext4_filemap_fault+0x7a/0xad
[  299.383749]  ? __down_interruptible+0x700/0x700
[  299.388415]  ext4_filemap_fault+0x82/0xad
[  299.392584]  __do_fault+0x100/0x6b0
[  299.396222]  ? pmd_devmap_trans_unstable+0x220/0x220
[  299.401352]  ? mark_held_locks+0x130/0x130
[  299.405582]  ? mark_held_locks+0x130/0x130
[  299.409807]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  299.415340]  ? rcu_pm_notify+0xc0/0xc0
[  299.419228]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.424761]  __handle_mm_fault+0x3ea0/0x5be0
[  299.429183]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  299.434020]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.438514]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  299.443093]  ? trace_hardirqs_on+0xbd/0x310
[  299.447407]  ? kasan_check_read+0x11/0x20
[  299.451545]  ? __set_current_blocked+0xdf/0x120
[  299.456208]  ? trace_hardirqs_off_caller+0x310/0x310
[  299.461318]  ? zap_class+0x640/0x640
[  299.465040]  ? zap_class+0x640/0x640
[  299.468766]  ? find_held_lock+0x36/0x1c0
[  299.472832]  ? handle_mm_fault+0x42a/0xc70
[  299.477077]  ? lock_downgrade+0x900/0x900
[  299.481217]  ? check_preemption_disabled+0x48/0x280
[  299.486244]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  299.491162]  ? kasan_check_read+0x11/0x20
[  299.495297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.500567]  ? rcu_softirq_qs+0x20/0x20
[  299.504537]  ? trace_hardirqs_off_caller+0x310/0x310
[  299.509651]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.515190]  ? check_preemption_disabled+0x48/0x280
[  299.520226]  handle_mm_fault+0x54f/0xc70
[  299.524315]  ? __handle_mm_fault+0x5be0/0x5be0
[  299.528925]  ? find_vma+0x34/0x190
[  299.532511]  __do_page_fault+0x5e8/0xe60
[  299.536565]  ? exit_to_usermode_loop+0x1f4/0x380
[  299.541325]  do_page_fault+0xf2/0x7e0
[  299.545126]  ? vmalloc_sync_all+0x30/0x30
[  299.549287]  ? error_entry+0x70/0xd0
[  299.553033]  ? trace_hardirqs_off_caller+0xbb/0x310
[  299.558047]  ? trace_hardirqs_on_caller+0xc0/0x310
[  299.562978]  ? syscall_return_slowpath+0x5e0/0x5e0
[  299.567915]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  299.572752]  ? trace_hardirqs_on_caller+0x310/0x310
[  299.577762]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  299.583216]  ? prepare_exit_to_usermode+0x291/0x3b0
[  299.588246]  ? page_fault+0x8/0x30
[  299.591786]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  299.596648]  ? page_fault+0x8/0x30
[  299.600193]  page_fault+0x1e/0x30
[  299.603646] RIP: 0033:0x45db60
[  299.606889] Code: Bad RIP value.
[  299.610260] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  299.615638] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  299.622911] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  299.630176] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  299.637444] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  299.644709] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  299.652032] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  299.652037] warn_alloc_show_mem: 1 callbacks suppressed
[  299.652044] Mem-Info:
[  299.659309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  299.664677] active_anon:54051 inactive_anon:192 isolated_anon:0
[  299.664677]  active_file:9 inactive_file:20 isolated_file:0
[  299.664677]  unevictable:0 dirty:0 writeback:0 unstable:0
[  299.664677]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  299.664677]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  299.664677]  free:13735 free_pcp:540 free_cma:0
[  299.667045] Call Trace:
[  299.676448] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  299.709226]  <IRQ>
[  299.711791] 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
[  299.739216]  dump_stack+0x244/0x39d
[  299.741336] lowmem_reserve[]: 0 2818 6321 6321
[  299.767660]  ? dump_stack_print_info.cold.1+0x20/0x20
[  299.771282] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  299.775862]  warn_alloc.cold.116+0xb7/0x1bd
[  299.781015] lowmem_reserve[]: 0 0 3503 3503
[  299.808762]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  299.813057] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  299.817397]  ? lock_downgrade+0x900/0x900
[  299.822209] lowmem_reserve[]: 0 0 0 0
[  299.851288]  ? trace_hardirqs_off+0xb8/0x310
[  299.855431] 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
[  299.859258]  ? trace_hardirqs_off+0xb8/0x310
[  299.863637] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  299.877336]  __alloc_pages_slowpath+0x26e8/0x2e10
[  299.881720] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  299.896987]  ? warn_alloc+0x120/0x120
[  299.901790] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  299.915922]  ? print_usage_bug+0xc0/0xc0
[  299.919715] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  299.928547]  ? warn_alloc+0x120/0x120
[  299.932584] 273 total pagecache pages
[  299.941150]  ? warn_alloc+0x120/0x120
[  299.944946] 0 pages in swap cache
[  299.948736]  ? print_usage_bug+0xc0/0xc0
[  299.952512] Swap cache stats: add 0, delete 0, find 0/0
[  299.955952]  ? print_usage_bug+0xc0/0xc0
[  299.959999] Free swap  = 0kB
[  299.965372]  ? __lock_acquire+0x62f/0x4c20
[  299.969405] Total swap = 0kB
[  299.972413]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.976621] 1965979 pages RAM
[  299.979649]  ? should_fail+0x22d/0xd01
[  299.985177] 0 pages HighMem/MovableOnly
[  299.988268]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  299.992147] 342853 pages reserved
[  299.996111]  ? __lock_acquire+0x62f/0x4c20
[  300.001182] 0 pages cma reserved
[  300.004621]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  300.008929] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  300.012225]  ? __lock_acquire+0x62f/0x4c20
[  300.012240]  ? should_fail+0x22d/0xd01
[  300.017407] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  300.023824]  ? find_held_lock+0x36/0x1c0
[  300.028029] syz-fuzzer cpuset=/ mems_allowed=0
[  300.031945]  ? mark_held_locks+0x130/0x130
[  300.054969]  ? mark_held_locks+0x130/0x130
[  300.059196]  ? zap_class+0x640/0x640
[  300.062908]  ? zap_class+0x640/0x640
[  300.066618]  ? print_usage_bug+0xc0/0xc0
[  300.070668]  ? do_raw_spin_unlock+0xa7/0x330
[  300.075069]  ? zap_class+0x640/0x640
[  300.078773]  ? print_usage_bug+0xc0/0xc0
[  300.082824]  ? wq_watchdog_touch+0x9c/0xfe
[  300.087056]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.092601]  ? check_preemption_disabled+0x48/0x280
[  300.097620]  ? __lock_is_held+0xb5/0x140
[  300.101692]  __alloc_pages_nodemask+0xa80/0xde0
[  300.106368]  ? zap_class+0x640/0x640
[  300.110089]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  300.115117]  ? find_held_lock+0x36/0x1c0
[  300.119192]  ? ____cache_alloc_node+0x1c7/0x1e0
[  300.123879]  ? lock_downgrade+0x900/0x900
[  300.128046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.133582]  cache_grow_begin+0xa5/0x8c0
[  300.137637]  ? do_raw_spin_unlock+0xa7/0x330
[  300.142048]  fallback_alloc+0x204/0x2e0
[  300.146025]  ____cache_alloc_node+0x1c7/0x1e0
[  300.150551]  kmem_cache_alloc_node+0xe3/0x730
[  300.155039]  ? ipv6_get_ifaddr+0x42e/0x620
[  300.159281]  __alloc_skb+0x119/0x770
[  300.163017]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.168296]  ? netdev_alloc_frag+0x1f0/0x1f0
[  300.172721]  ? lock_downgrade+0x900/0x900
[  300.176898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.182483]  ? refcount_sub_and_test_checked+0x203/0x310
[  300.187952]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  300.193399]  ? addrconf_rs_timer+0x690/0x690
[  300.197817]  ndisc_alloc_skb+0x144/0x340
[  300.201888]  ndisc_send_rs+0x331/0x6e0
[  300.205782]  addrconf_rs_timer+0x314/0x690
[  300.210022]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.214266]  call_timer_fn+0x272/0x920
[  300.218157]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.222396]  ? process_timeout+0x40/0x40
[  300.226467]  ? __run_timers+0x7da/0xc70
[  300.230438]  ? _raw_spin_unlock_irq+0x27/0x80
[  300.234963]  ? _raw_spin_unlock_irq+0x27/0x80
[  300.239464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.243689]  ? lockdep_hardirqs_on+0x296/0x5b0
[  300.248306]  ? trace_hardirqs_on+0xbd/0x310
[  300.252620]  ? kasan_check_read+0x11/0x20
[  300.256762]  ? __run_timers+0x7da/0xc70
[  300.260751]  ? trace_hardirqs_off_caller+0x310/0x310
[  300.265883]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.270121]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.274350]  __run_timers+0x7e5/0xc70
[  300.278154]  ? timer_fixup_init+0x70/0x70
[  300.282330]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  300.287357]  ? zap_class+0x640/0x640
[  300.291068]  ? enqueue_hrtimer+0x1a5/0x560
[  300.295310]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  300.300507]  ? find_held_lock+0x36/0x1c0
[  300.304591]  ? zap_class+0x640/0x640
[  300.308303]  ? pvclock_read_flags+0x160/0x160
[  300.312803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.318339]  ? check_preemption_disabled+0x48/0x280
[  300.323359]  ? __lock_is_held+0xb5/0x140
[  300.327417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.332949]  ? check_preemption_disabled+0x48/0x280
[  300.337969]  run_timer_softirq+0x52/0xb0
[  300.342024]  ? rcu_read_lock_sched_held+0x14f/0x180
[  300.347031]  __do_softirq+0x308/0xb7e
[  300.350825]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  300.355380]  ? lock_downgrade+0x900/0x900
[  300.359523]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  300.364622]  ? pvclock_read_flags+0x160/0x160
[  300.369110]  ? lapic_next_event+0x5a/0x90
[  300.373251]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.378781]  ? kvm_clock_read+0x18/0x30
[  300.382748]  ? kvm_sched_clock_read+0x9/0x20
[  300.387147]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.392692]  ? check_preemption_disabled+0x48/0x280
[  300.397708]  irq_exit+0x17f/0x1c0
[  300.401153]  smp_apic_timer_interrupt+0x1cb/0x760
[  300.406006]  ? smp_reschedule_interrupt+0x109/0x650
[  300.411016]  ? smp_call_function_single_interrupt+0x650/0x650
[  300.416901]  ? interrupt_entry+0xb5/0xc0
[  300.420960]  ? trace_hardirqs_off_caller+0xbb/0x310
[  300.425968]  ? trace_hardirqs_off_caller+0xbb/0x310
[  300.431032]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.435870]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.440891]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.445904]  ? task_prio+0x50/0x50
[  300.449436]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.454969]  ? check_preemption_disabled+0x48/0x280
[  300.459987]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.464829]  apic_timer_interrupt+0xf/0x20
[  300.469049]  </IRQ>
[  300.471279] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  300.476203] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  300.495113] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  300.502841] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  300.510100] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  300.517359] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  300.524631] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  300.531910] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  300.539200]  skb_clone+0x1bb/0x500
[  300.542749]  ? finish_task_switch+0x2f4/0x910
[  300.547267]  ? skb_split+0x11e0/0x11e0
[  300.551151]  ? preempt_notifier_register+0x200/0x200
[  300.556292]  ? __switch_to_asm+0x34/0x70
[  300.560347]  ? __switch_to_asm+0x34/0x70
[  300.564402]  ? __switch_to_asm+0x40/0x70
[  300.568456]  ? __switch_to_asm+0x34/0x70
[  300.572508]  ? __switch_to_asm+0x40/0x70
[  300.576561]  ? __switch_to_asm+0x34/0x70
[  300.580614]  ? __switch_to_asm+0x40/0x70
[  300.584662]  ? __switch_to_asm+0x34/0x70
[  300.588714]  ? __switch_to_asm+0x34/0x70
[  300.592768]  ? __switch_to_asm+0x40/0x70
[  300.596879]  ? __switch_to_asm+0x34/0x70
[  300.600943]  bpf_clone_redirect+0xb9/0x490
[  300.605185]  ? __schedule+0x8d7/0x21d0
[  300.609073]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  300.614086]  ? __sched_text_start+0x8/0x8
[  300.618240]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  300.623010]  ? find_held_lock+0x36/0x1c0
[  300.627084]  ? lock_acquire+0x1ed/0x520
[  300.631060]  ? bpf_test_run+0x3cb/0x780
[  300.635036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.640572]  ? check_preemption_disabled+0x48/0x280
[  300.645593]  ? kasan_check_read+0x11/0x20
[  300.649741]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.655017]  ? rcu_softirq_qs+0x20/0x20
[  300.658997]  ? preempt_schedule+0x4d/0x60
[  300.663153]  ? ___preempt_schedule+0x16/0x18
[  300.667574]  ? bpf_test_run+0x25d/0x780
[  300.671559]  ? netlink_diag_dump+0x2a0/0x2a0
[  300.675971]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.681525]  ? bpf_test_init.isra.10+0x70/0x100
[  300.686218]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  300.690984]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  300.695821]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  300.701356]  ? fput+0x130/0x1a0
[  300.704636]  ? __bpf_prog_get+0x9b/0x290
[  300.708740]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  300.713581]  ? bpf_prog_test_run+0x130/0x1a0
[  300.717993]  ? __x64_sys_bpf+0x3d8/0x520
[  300.722051]  ? bpf_prog_get+0x20/0x20
[  300.725862]  ? do_syscall_64+0x1b9/0x820
[  300.729931]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  300.735309]  ? syscall_return_slowpath+0x5e0/0x5e0
[  300.740240]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.745404]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  300.750434]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  300.757096]  ? __switch_to_asm+0x40/0x70
[  300.761185]  ? __switch_to_asm+0x34/0x70
[  300.765249]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.770091]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  300.775463] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  300.775544] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  300.782463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  300.782468] Call Trace:
[  300.782473]  <IRQ>
[  300.782488]  dump_stack+0x244/0x39d
[  300.782506]  ? dump_stack_print_info.cold.1+0x20/0x20
[  300.789024] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  300.798324]  warn_alloc.cold.116+0xb7/0x1bd
[  300.800882] syz-executor3 cpuset=syz3 mems_allowed=0
[  300.803021]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  300.836536]  ? lock_downgrade+0x900/0x900
[  300.840695]  ? trace_hardirqs_off+0xb8/0x310
[  300.845102]  ? trace_hardirqs_off+0xb8/0x310
[  300.849553]  __alloc_pages_slowpath+0x26e8/0x2e10
[  300.854475]  ? warn_alloc+0x120/0x120
[  300.858292]  ? print_usage_bug+0xc0/0xc0
[  300.862373]  ? warn_alloc+0x120/0x120
[  300.866195]  ? warn_alloc+0x120/0x120
[  300.870003]  ? print_usage_bug+0xc0/0xc0
[  300.874067]  ? kvm_clock_read+0x18/0x30
[  300.878036]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  300.883078]  ? print_usage_bug+0xc0/0xc0
[  300.887138]  ? __lock_acquire+0x62f/0x4c20
[  300.891378]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.896912]  ? should_fail+0x22d/0xd01
[  300.900794]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.906069]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  300.911166]  ? __lock_acquire+0x62f/0x4c20
[  300.915398]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  300.920496]  ? __lock_acquire+0x62f/0x4c20
[  300.924721]  ? should_fail+0x22d/0xd01
[  300.928596]  ? rcu_irq_exit+0x1a2/0x390
[  300.932573]  ? mark_held_locks+0x130/0x130
[  300.936821]  ? mark_held_locks+0x130/0x130
[  300.941070]  ? mark_held_locks+0xc7/0x130
[  300.945227]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  300.950250]  ? zap_class+0x640/0x640
[  300.953953]  ? print_usage_bug+0xc0/0xc0
[  300.958028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.963556]  ? check_preemption_disabled+0x48/0x280
[  300.968596]  ? __lock_is_held+0xb5/0x140
[  300.972676]  __alloc_pages_nodemask+0xa80/0xde0
[  300.977345]  ? zap_class+0x640/0x640
[  300.981056]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  300.986072]  ? find_held_lock+0x36/0x1c0
[  300.990135]  ? ____cache_alloc_node+0x1c7/0x1e0
[  300.994797]  ? lock_downgrade+0x900/0x900
[  300.998941]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.004475]  cache_grow_begin+0xa5/0x8c0
[  301.008545]  ? do_raw_spin_unlock+0xa7/0x330
[  301.012970]  fallback_alloc+0x204/0x2e0
[  301.016952]  ____cache_alloc_node+0x1c7/0x1e0
[  301.021449]  kmem_cache_alloc_node+0xe3/0x730
[  301.025939]  ? ipv6_get_ifaddr+0x42e/0x620
[  301.030192]  __alloc_skb+0x119/0x770
[  301.033904]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.039178]  ? netdev_alloc_frag+0x1f0/0x1f0
[  301.043579]  ? lock_downgrade+0x900/0x900
[  301.047744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.053278]  ? refcount_sub_and_test_checked+0x203/0x310
[  301.058740]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  301.064184]  ? addrconf_rs_timer+0x690/0x690
[  301.068599]  ndisc_alloc_skb+0x144/0x340
[  301.072692]  ndisc_send_rs+0x331/0x6e0
[  301.076577]  addrconf_rs_timer+0x314/0x690
[  301.080810]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.085059]  call_timer_fn+0x272/0x920
[  301.088956]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.093184]  ? process_timeout+0x40/0x40
[  301.097250]  ? mark_held_locks+0xc7/0x130
[  301.101419]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.105904]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.110387]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.114634]  ? lockdep_hardirqs_on+0x296/0x5b0
[  301.119250]  ? trace_hardirqs_on+0xbd/0x310
[  301.123591]  ? kasan_check_read+0x11/0x20
[  301.127743]  ? __run_timers+0x7da/0xc70
[  301.131706]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.136803]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.141033]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.145272]  __run_timers+0x7e5/0xc70
[  301.149086]  ? timer_fixup_init+0x70/0x70
[  301.153227]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  301.158234]  ? zap_class+0x640/0x640
[  301.161942]  ? print_usage_bug+0xc0/0xc0
[  301.166029]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  301.171236]  ? find_held_lock+0x36/0x1c0
[  301.175305]  ? zap_class+0x640/0x640
[  301.179022]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.184560]  ? check_preemption_disabled+0x48/0x280
[  301.189594]  ? __lock_is_held+0xb5/0x140
[  301.193650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.199196]  ? check_preemption_disabled+0x48/0x280
[  301.204209]  run_timer_softirq+0x52/0xb0
[  301.208270]  ? rcu_read_lock_sched_held+0x14f/0x180
[  301.213278]  __do_softirq+0x308/0xb7e
[  301.217081]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  301.221585]  ? lock_downgrade+0x900/0x900
[  301.225730]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  301.230834]  ? pvclock_read_flags+0x160/0x160
[  301.235328]  ? lapic_next_event+0x5a/0x90
[  301.239473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.245009]  ? kvm_clock_read+0x18/0x30
[  301.248980]  ? kvm_sched_clock_read+0x9/0x20
[  301.253385]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.258928]  ? check_preemption_disabled+0x48/0x280
[  301.263960]  irq_exit+0x17f/0x1c0
[  301.267406]  smp_apic_timer_interrupt+0x1cb/0x760
[  301.272259]  ? smp_reschedule_interrupt+0x109/0x650
[  301.277283]  ? smp_call_function_single_interrupt+0x650/0x650
[  301.283160]  ? interrupt_entry+0xb5/0xc0
[  301.287248]  ? trace_hardirqs_off_caller+0xbb/0x310
[  301.292293]  ? trace_hardirqs_off_caller+0xbb/0x310
[  301.297340]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.302183]  ? trace_hardirqs_on_caller+0x310/0x310
[  301.307198]  ? trace_hardirqs_on_caller+0x310/0x310
[  301.312217]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.317062]  apic_timer_interrupt+0xf/0x20
[  301.321283]  </IRQ>
[  301.323559] RIP: 0010:dump_stack+0x358/0x39d
[  301.327977] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  301.346889] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  301.354591] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  301.361852] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  301.369115] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  301.376373] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  301.383666] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  301.390967]  ? dump_stack+0x34f/0x39d
[  301.394776]  ? dump_stack_print_info.cold.1+0x20/0x20
[  301.399958]  ? mark_held_locks+0x130/0x130
[  301.404201]  ? mark_held_locks+0x130/0x130
[  301.408445]  dump_header+0x27b/0xf72
[  301.412161]  ? pagefault_out_of_memory+0x197/0x197
[  301.417094]  ? __lock_acquire+0x62f/0x4c20
[  301.421352]  ? percpu_ref_get_many+0x240/0x240
[  301.425946]  ? print_usage_bug+0xc0/0xc0
[  301.430001]  ? zap_class+0x640/0x640
[  301.433708]  ? print_usage_bug+0xc0/0xc0
[  301.437759]  ? print_usage_bug+0xc0/0xc0
[  301.441814]  ? zap_class+0x640/0x640
[  301.445530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.451068]  ? find_held_lock+0x36/0x1c0
[  301.455134]  ? mark_held_locks+0xc7/0x130
[  301.459306]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  301.464398]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  301.469496]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  301.474074]  ? trace_hardirqs_on+0xbd/0x310
[  301.478397]  ? kasan_check_read+0x11/0x20
[  301.482551]  ? ___ratelimit+0x3b4/0x672
[  301.486517]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.491625]  ? trace_hardirqs_on+0x310/0x310
[  301.496026]  ? lock_downgrade+0x900/0x900
[  301.500172]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  301.505340]  ? ___ratelimit+0x3b9/0x672
[  301.509321]  ? idr_get_free+0xf70/0xf70
[  301.513287]  ? find_held_lock+0x36/0x1c0
[  301.517361]  oom_kill_process.cold.27+0x10/0x903
[  301.522117]  ? zap_class+0x640/0x640
[  301.525835]  ? check_preemption_disabled+0x48/0x280
[  301.530853]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  301.535777]  ? kasan_check_read+0x11/0x20
[  301.539931]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.545201]  ? oom_evaluate_task+0x540/0x540
[  301.549602]  ? find_held_lock+0x36/0x1c0
[  301.553658]  ? out_of_memory+0x974/0x1430
[  301.557801]  ? lock_downgrade+0x900/0x900
[  301.561941]  ? check_preemption_disabled+0x48/0x280
[  301.566971]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  301.571897]  ? kasan_check_read+0x11/0x20
[  301.576036]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.581306]  ? rcu_softirq_qs+0x20/0x20
[  301.585278]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.590814]  ? oom_evaluate_task+0x302/0x540
[  301.595227]  out_of_memory+0xa84/0x1430
[  301.599209]  ? oom_killer_disable+0x3a0/0x3a0
[  301.603719]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  301.608649]  ? __ww_mutex_check_waiters+0x160/0x160
[  301.613684]  __alloc_pages_slowpath+0x2354/0x2e10
[  301.618583]  ? warn_alloc+0x120/0x120
[  301.622383]  ? mark_held_locks+0x130/0x130
[  301.626620]  ? find_get_entry+0xaae/0x1120
[  301.630883]  ? filemap_map_pages+0x1a20/0x1a20
[  301.635472]  ? zap_class+0x640/0x640
[  301.639189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.644727]  ? check_preemption_disabled+0x48/0x280
[  301.649758]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.655323]  ? should_fail+0x22d/0xd01
[  301.659218]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  301.664325]  ? zap_class+0x640/0x640
[  301.668063]  ? __lock_is_held+0xb5/0x140
[  301.672149]  ? mark_held_locks+0x130/0x130
[  301.676385]  ? lock_release+0xa00/0xa00
[  301.680357]  ? perf_trace_sched_process_exec+0x860/0x860
[  301.685807]  ? xa_load+0x2ba/0x460
[  301.689365]  ? lock_downgrade+0x900/0x900
[  301.693516]  ? __might_sleep+0x95/0x190
[  301.697496]  __alloc_pages_nodemask+0xa80/0xde0
[  301.702176]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  301.707190]  ? __page_cache_alloc+0x191/0x5c0
[  301.711686]  ? xa_load+0x2e1/0x460
[  301.715230]  ? xa_clear_mark+0x40/0x40
[  301.719137]  ? zap_class+0x640/0x640
[  301.722871]  ? zap_class+0x640/0x640
[  301.726591]  ? zap_class+0x640/0x640
[  301.730306]  ? __do_page_cache_readahead+0x663/0x810
[  301.735413]  ? find_held_lock+0x36/0x1c0
[  301.739496]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  301.745178]  alloc_pages_current+0x173/0x350
[  301.749591]  __page_cache_alloc+0x38c/0x5c0
[  301.753924]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  301.758849]  ? kasan_check_read+0x11/0x20
[  301.763012]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.768291]  ? generic_perform_write+0x6a0/0x6a0
[  301.773066]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.778620]  ? check_preemption_disabled+0x48/0x280
[  301.783686]  filemap_fault+0x1595/0x25f0
[  301.787757]  ? __lock_page_or_retry+0xa00/0xa00
[  301.792427]  ? mark_held_locks+0x130/0x130
[  301.796676]  ? filemap_map_pages+0xd6b/0x1a20
[  301.801172]  ? lock_downgrade+0x900/0x900
[  301.805321]  ? check_preemption_disabled+0x48/0x280
[  301.810334]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  301.815260]  ? kasan_check_read+0x11/0x20
[  301.819411]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.824690]  ? rcu_softirq_qs+0x20/0x20
[  301.828696]  ? filemap_map_pages+0xd92/0x1a20
[  301.833198]  ? print_usage_bug+0xc0/0xc0
[  301.837266]  ? find_get_entries_tag+0x1400/0x1400
[  301.842107]  ? __kasan_slab_free+0x102/0x150
[  301.846510]  ? kasan_slab_free+0xe/0x10
[  301.850480]  ? kmem_cache_free+0x83/0x290
[  301.854626]  ? __sigqueue_free.part.29+0x74/0x90
[  301.859402]  ? lock_acquire+0x1ed/0x520
[  301.863377]  ? ext4_filemap_fault+0x7a/0xad
[  301.867706]  ? lock_release+0xa00/0xa00
[  301.871682]  ? perf_trace_sched_process_exec+0x860/0x860
[  301.877634]  ? print_usage_bug+0xc0/0xc0
[  301.881711]  ? print_usage_bug+0xc0/0xc0
[  301.885784]  ? down_read+0x8d/0x120
[  301.889406]  ? ext4_filemap_fault+0x7a/0xad
[  301.893731]  ? __down_interruptible+0x700/0x700
[  301.898405]  ext4_filemap_fault+0x82/0xad
[  301.902552]  __do_fault+0x100/0x6b0
[  301.906180]  ? pmd_devmap_trans_unstable+0x220/0x220
[  301.911295]  ? mark_held_locks+0x130/0x130
[  301.915557]  ? mark_held_locks+0x130/0x130
[  301.919793]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  301.925326]  ? rcu_pm_notify+0xc0/0xc0
[  301.929232]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.934784]  __handle_mm_fault+0x3ea0/0x5be0
[  301.939198]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  301.944039]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.948530]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  301.953108]  ? trace_hardirqs_on+0xbd/0x310
[  301.957425]  ? kasan_check_read+0x11/0x20
[  301.961579]  ? __set_current_blocked+0xdf/0x120
[  301.966267]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.971417]  ? zap_class+0x640/0x640
[  301.975124]  ? zap_class+0x640/0x640
[  301.978840]  ? find_held_lock+0x36/0x1c0
[  301.982923]  ? handle_mm_fault+0x42a/0xc70
[  301.987167]  ? lock_downgrade+0x900/0x900
[  301.991362]  ? check_preemption_disabled+0x48/0x280
[  301.996385]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  302.001308]  ? kasan_check_read+0x11/0x20
[  302.005474]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.010757]  ? rcu_softirq_qs+0x20/0x20
[  302.014744]  ? trace_hardirqs_off_caller+0x310/0x310
[  302.019860]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.025404]  ? check_preemption_disabled+0x48/0x280
[  302.030451]  handle_mm_fault+0x54f/0xc70
[  302.034516]  ? __handle_mm_fault+0x5be0/0x5be0
[  302.039111]  ? find_vma+0x34/0x190
[  302.042665]  __do_page_fault+0x5e8/0xe60
[  302.046729]  ? exit_to_usermode_loop+0x1f4/0x380
[  302.051517]  do_page_fault+0xf2/0x7e0
[  302.055315]  ? vmalloc_sync_all+0x30/0x30
[  302.059456]  ? error_entry+0x70/0xd0
[  302.063164]  ? trace_hardirqs_off_caller+0xbb/0x310
[  302.068170]  ? trace_hardirqs_on_caller+0xc0/0x310
[  302.073094]  ? syscall_return_slowpath+0x5e0/0x5e0
[  302.078017]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.082855]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.087867]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  302.093321]  ? prepare_exit_to_usermode+0x291/0x3b0
[  302.098369]  ? page_fault+0x8/0x30
[  302.101936]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.106787]  ? page_fault+0x8/0x30
[  302.110330]  page_fault+0x1e/0x30
[  302.113776] RIP: 0033:0x45db60
[  302.117005] Code: Bad RIP value.
[  302.120405] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  302.125759] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  302.133037] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  302.140295] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  302.147595] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  302.154869] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  302.162158] warn_alloc_show_mem: 1 callbacks suppressed
[  302.162191] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  302.162192] Mem-Info:
[  302.162222] active_anon:54051 inactive_anon:192 isolated_anon:0
[  302.162222]  active_file:9 inactive_file:20 isolated_file:0
[  302.162222]  unevictable:0 dirty:0 writeback:0 unstable:0
[  302.162222]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  302.162222]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  302.162222]  free:13735 free_pcp:540 free_cma:0
[  302.167553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  302.174838] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  302.177230] Call Trace:
[  302.210020] 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
[  302.219376]  <IRQ>
[  302.246813] lowmem_reserve[]: 0 2818 6321 6321
[  302.249389]  dump_stack+0x244/0x39d
[  302.275469] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  302.277643]  ? dump_stack_print_info.cold.1+0x20/0x20
[  302.282196] lowmem_reserve[]: 0 0 3503 3503
[  302.285814]  warn_alloc.cold.116+0xb7/0x1bd
[  302.313539] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  302.318715]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  302.323031] lowmem_reserve[]: 0 0 0 0
[  302.327373]  ? lock_downgrade+0x900/0x900
[  302.356444] 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
[  302.361285]  ? trace_hardirqs_off+0xb8/0x310
[  302.365054] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  302.369194]  ? trace_hardirqs_off+0xb8/0x310
[  302.382687] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  302.387089]  __alloc_pages_slowpath+0x26e8/0x2e10
[  302.402336] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  302.406738]  ? warn_alloc+0x120/0x120
[  302.420826] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  302.425646]  ? print_usage_bug+0xc0/0xc0
[  302.434462] 273 total pagecache pages
[  302.438244]  ? warn_alloc+0x120/0x120
[  302.446804] 0 pages in swap cache
[  302.450840]  ? warn_alloc+0x120/0x120
[  302.454624] Swap cache stats: add 0, delete 0, find 0/0
[  302.458406]  ? print_usage_bug+0xc0/0xc0
[  302.461844] Free swap  = 0kB
[  302.465630]  ? print_usage_bug+0xc0/0xc0
[  302.470963] Total swap = 0kB
[  302.475007]  ? __lock_acquire+0x62f/0x4c20
[  302.477997] 1965979 pages RAM
[  302.482042]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.485033] 0 pages HighMem/MovableOnly
[  302.489279]  ? should_fail+0x22d/0xd01
[  302.492361] 342853 pages reserved
[  302.497890]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  302.501833] 0 pages cma reserved
[  302.505708]  ? __lock_acquire+0x62f/0x4c20
[  302.509185] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  302.514233]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  302.514245]  ? __lock_acquire+0x62f/0x4c20
[  302.514293]  ? should_fail+0x22d/0xd01
[  302.517691] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  302.521858]  ? find_held_lock+0x36/0x1c0
[  302.528346] syz-fuzzer cpuset=/ mems_allowed=0
[  302.533465]  ? mark_held_locks+0x130/0x130
[  302.564555]  ? mark_held_locks+0x130/0x130
[  302.568778]  ? zap_class+0x640/0x640
[  302.572487]  ? zap_class+0x640/0x640
[  302.576197]  ? print_usage_bug+0xc0/0xc0
[  302.580250]  ? do_raw_spin_unlock+0xa7/0x330
[  302.584651]  ? zap_class+0x640/0x640
[  302.588358]  ? print_usage_bug+0xc0/0xc0
[  302.592427]  ? wq_watchdog_touch+0x9c/0xfe
[  302.596672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.602209]  ? check_preemption_disabled+0x48/0x280
[  302.607262]  ? __lock_is_held+0xb5/0x140
[  302.611332]  __alloc_pages_nodemask+0xa80/0xde0
[  302.615998]  ? zap_class+0x640/0x640
[  302.619711]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  302.624734]  ? find_held_lock+0x36/0x1c0
[  302.628803]  ? ____cache_alloc_node+0x1c7/0x1e0
[  302.633471]  ? lock_downgrade+0x900/0x900
[  302.637624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.643161]  cache_grow_begin+0xa5/0x8c0
[  302.647226]  ? do_raw_spin_unlock+0xa7/0x330
[  302.651637]  fallback_alloc+0x204/0x2e0
[  302.655616]  ____cache_alloc_node+0x1c7/0x1e0
[  302.660110]  kmem_cache_alloc_node+0xe3/0x730
[  302.664613]  ? ipv6_get_ifaddr+0x42e/0x620
[  302.668890]  __alloc_skb+0x119/0x770
[  302.672614]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.677900]  ? netdev_alloc_frag+0x1f0/0x1f0
[  302.682307]  ? lock_downgrade+0x900/0x900
[  302.686473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.692055]  ? refcount_sub_and_test_checked+0x203/0x310
[  302.697506]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  302.702955]  ? addrconf_rs_timer+0x690/0x690
[  302.707378]  ndisc_alloc_skb+0x144/0x340
[  302.711445]  ndisc_send_rs+0x331/0x6e0
[  302.715340]  addrconf_rs_timer+0x314/0x690
[  302.719597]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.723846]  call_timer_fn+0x272/0x920
[  302.727743]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.731979]  ? process_timeout+0x40/0x40
[  302.736051]  ? __run_timers+0x7da/0xc70
[  302.740032]  ? _raw_spin_unlock_irq+0x27/0x80
[  302.744713]  ? _raw_spin_unlock_irq+0x27/0x80
[  302.749212]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.753447]  ? lockdep_hardirqs_on+0x296/0x5b0
[  302.758031]  ? trace_hardirqs_on+0xbd/0x310
[  302.762357]  ? kasan_check_read+0x11/0x20
[  302.766504]  ? __run_timers+0x7da/0xc70
[  302.770490]  ? trace_hardirqs_off_caller+0x310/0x310
[  302.775603]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.779843]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.784086]  __run_timers+0x7e5/0xc70
[  302.787920]  ? timer_fixup_init+0x70/0x70
[  302.792076]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  302.797096]  ? zap_class+0x640/0x640
[  302.800813]  ? enqueue_hrtimer+0x1a5/0x560
[  302.805050]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  302.810246]  ? find_held_lock+0x36/0x1c0
[  302.814324]  ? zap_class+0x640/0x640
[  302.818039]  ? pvclock_read_flags+0x160/0x160
[  302.822537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.828078]  ? check_preemption_disabled+0x48/0x280
[  302.833101]  ? __lock_is_held+0xb5/0x140
[  302.837163]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.842706]  ? check_preemption_disabled+0x48/0x280
[  302.847731]  run_timer_softirq+0x52/0xb0
[  302.851794]  ? rcu_read_lock_sched_held+0x14f/0x180
[  302.856807]  __do_softirq+0x308/0xb7e
[  302.860609]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  302.865104]  ? lock_downgrade+0x900/0x900
[  302.869269]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  302.874380]  ? pvclock_read_flags+0x160/0x160
[  302.878916]  ? lapic_next_event+0x5a/0x90
[  302.883068]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.888610]  ? kvm_clock_read+0x18/0x30
[  302.892581]  ? kvm_sched_clock_read+0x9/0x20
[  302.896990]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.902525]  ? check_preemption_disabled+0x48/0x280
[  302.907570]  irq_exit+0x17f/0x1c0
[  302.911022]  smp_apic_timer_interrupt+0x1cb/0x760
[  302.915884]  ? smp_reschedule_interrupt+0x109/0x650
[  302.920913]  ? smp_call_function_single_interrupt+0x650/0x650
[  302.926802]  ? interrupt_entry+0xb5/0xc0
[  302.930865]  ? trace_hardirqs_off_caller+0xbb/0x310
[  302.935891]  ? trace_hardirqs_off_caller+0xbb/0x310
[  302.940907]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.945740]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.950743]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.955765]  ? task_prio+0x50/0x50
[  302.959309]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.964838]  ? check_preemption_disabled+0x48/0x280
[  302.969868]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.974721]  apic_timer_interrupt+0xf/0x20
[  302.978953]  </IRQ>
[  302.981195] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  302.986114] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  303.005003] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  303.012700] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  303.019956] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  303.027216] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  303.034472] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  303.041749] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  303.049039]  skb_clone+0x1bb/0x500
[  303.052573]  ? finish_task_switch+0x2f4/0x910
[  303.057062]  ? skb_split+0x11e0/0x11e0
[  303.060944]  ? preempt_notifier_register+0x200/0x200
[  303.066038]  ? __switch_to_asm+0x34/0x70
[  303.070108]  ? __switch_to_asm+0x34/0x70
[  303.074160]  ? __switch_to_asm+0x40/0x70
[  303.078261]  ? __switch_to_asm+0x34/0x70
[  303.082312]  ? __switch_to_asm+0x40/0x70
[  303.086406]  ? __switch_to_asm+0x34/0x70
[  303.090489]  ? __switch_to_asm+0x40/0x70
[  303.094539]  ? __switch_to_asm+0x34/0x70
[  303.098590]  ? __switch_to_asm+0x34/0x70
[  303.102641]  ? __switch_to_asm+0x40/0x70
[  303.106704]  ? __switch_to_asm+0x34/0x70
[  303.110761]  bpf_clone_redirect+0xb9/0x490
[  303.115005]  ? __schedule+0x8d7/0x21d0
[  303.118896]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  303.123909]  ? __sched_text_start+0x8/0x8
[  303.128049]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  303.132808]  ? find_held_lock+0x36/0x1c0
[  303.136880]  ? lock_acquire+0x1ed/0x520
[  303.140853]  ? bpf_test_run+0x3cb/0x780
[  303.144842]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.150373]  ? check_preemption_disabled+0x48/0x280
[  303.155399]  ? kasan_check_read+0x11/0x20
[  303.159538]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.164863]  ? rcu_softirq_qs+0x20/0x20
[  303.168870]  ? preempt_schedule+0x4d/0x60
[  303.173020]  ? ___preempt_schedule+0x16/0x18
[  303.177429]  ? bpf_test_run+0x25d/0x780
[  303.181430]  ? netlink_diag_dump+0x2a0/0x2a0
[  303.185834]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.191364]  ? bpf_test_init.isra.10+0x70/0x100
[  303.196032]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  303.200792]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  303.205627]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  303.211160]  ? fput+0x130/0x1a0
[  303.214446]  ? __bpf_prog_get+0x9b/0x290
[  303.218508]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  303.223351]  ? bpf_prog_test_run+0x130/0x1a0
[  303.227758]  ? __x64_sys_bpf+0x3d8/0x520
[  303.231812]  ? bpf_prog_get+0x20/0x20
[  303.235655]  ? do_syscall_64+0x1b9/0x820
[  303.239710]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  303.245073]  ? syscall_return_slowpath+0x5e0/0x5e0
[  303.250005]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.255021]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  303.260034]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  303.266694]  ? __switch_to_asm+0x40/0x70
[  303.270749]  ? __switch_to_asm+0x34/0x70
[  303.274813]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.279662]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  303.285039] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  303.285106] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  303.292046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  303.292055] Call Trace:
[  303.298610] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  303.307871]  <IRQ>
[  303.310445] syz-executor3 cpuset=syz3 mems_allowed=0
[  303.320931]  dump_stack+0x244/0x39d
[  303.331759]  ? dump_stack_print_info.cold.1+0x20/0x20
[  303.336995]  warn_alloc.cold.116+0xb7/0x1bd
[  303.341325]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  303.346161]  ? lock_downgrade+0x900/0x900
[  303.350304]  ? trace_hardirqs_off+0xb8/0x310
[  303.354708]  ? trace_hardirqs_off+0xb8/0x310
[  303.359113]  __alloc_pages_slowpath+0x26e8/0x2e10
[  303.363973]  ? warn_alloc+0x120/0x120
[  303.367770]  ? print_usage_bug+0xc0/0xc0
[  303.371853]  ? warn_alloc+0x120/0x120
[  303.375681]  ? warn_alloc+0x120/0x120
[  303.379475]  ? print_usage_bug+0xc0/0xc0
[  303.383531]  ? print_usage_bug+0xc0/0xc0
[  303.387612]  ? __lock_acquire+0x62f/0x4c20
[  303.391872]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.397426]  ? should_fail+0x22d/0xd01
[  303.401308]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.406403]  ? __lock_acquire+0x62f/0x4c20
[  303.410632]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.415728]  ? __lock_acquire+0x62f/0x4c20
[  303.419973]  ? should_fail+0x22d/0xd01
[  303.423851]  ? find_held_lock+0x36/0x1c0
[  303.427926]  ? mark_held_locks+0x130/0x130
[  303.432157]  ? mark_held_locks+0x130/0x130
[  303.436395]  ? zap_class+0x640/0x640
[  303.440102]  ? zap_class+0x640/0x640
[  303.443823]  ? print_usage_bug+0xc0/0xc0
[  303.447883]  ? do_raw_spin_unlock+0xa7/0x330
[  303.452285]  ? zap_class+0x640/0x640
[  303.456017]  ? print_usage_bug+0xc0/0xc0
[  303.460068]  ? wq_watchdog_touch+0x9c/0xfe
[  303.464308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.469865]  ? check_preemption_disabled+0x48/0x280
[  303.474902]  ? __lock_is_held+0xb5/0x140
[  303.478993]  __alloc_pages_nodemask+0xa80/0xde0
[  303.483685]  ? zap_class+0x640/0x640
[  303.487395]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  303.492417]  ? find_held_lock+0x36/0x1c0
[  303.496490]  ? ____cache_alloc_node+0x1c7/0x1e0
[  303.501148]  ? lock_downgrade+0x900/0x900
[  303.505305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.510848]  cache_grow_begin+0xa5/0x8c0
[  303.514928]  ? do_raw_spin_unlock+0xa7/0x330
[  303.519359]  fallback_alloc+0x204/0x2e0
[  303.523341]  ____cache_alloc_node+0x1c7/0x1e0
[  303.527832]  kmem_cache_alloc_node+0xe3/0x730
[  303.532337]  ? ipv6_get_ifaddr+0x42e/0x620
[  303.536584]  __alloc_skb+0x119/0x770
[  303.540284]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.545551]  ? netdev_alloc_frag+0x1f0/0x1f0
[  303.549948]  ? lock_downgrade+0x900/0x900
[  303.554092]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.559618]  ? refcount_sub_and_test_checked+0x203/0x310
[  303.565059]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  303.570535]  ? addrconf_rs_timer+0x690/0x690
[  303.574960]  ndisc_alloc_skb+0x144/0x340
[  303.579017]  ndisc_send_rs+0x331/0x6e0
[  303.582943]  addrconf_rs_timer+0x314/0x690
[  303.587174]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.591439]  call_timer_fn+0x272/0x920
[  303.595320]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.599549]  ? process_timeout+0x40/0x40
[  303.603630]  ? mark_held_locks+0xc7/0x130
[  303.607777]  ? _raw_spin_unlock_irq+0x27/0x80
[  303.612267]  ? _raw_spin_unlock_irq+0x27/0x80
[  303.616771]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.620999]  ? lockdep_hardirqs_on+0x296/0x5b0
[  303.625574]  ? trace_hardirqs_on+0xbd/0x310
[  303.629898]  ? kasan_check_read+0x11/0x20
[  303.634055]  ? __run_timers+0x7da/0xc70
[  303.638027]  ? trace_hardirqs_off_caller+0x310/0x310
[  303.643131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.647381]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.651614]  __run_timers+0x7e5/0xc70
[  303.655462]  ? timer_fixup_init+0x70/0x70
[  303.659630]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  303.664641]  ? zap_class+0x640/0x640
[  303.668367]  ? print_usage_bug+0xc0/0xc0
[  303.672438]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  303.677646]  ? find_held_lock+0x36/0x1c0
[  303.681713]  ? zap_class+0x640/0x640
[  303.685434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.691001]  ? check_preemption_disabled+0x48/0x280
[  303.696029]  ? __lock_is_held+0xb5/0x140
[  303.700096]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.705631]  ? check_preemption_disabled+0x48/0x280
[  303.710649]  run_timer_softirq+0x52/0xb0
[  303.714723]  ? rcu_read_lock_sched_held+0x14f/0x180
[  303.719732]  __do_softirq+0x308/0xb7e
[  303.723530]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  303.728050]  ? lock_downgrade+0x900/0x900
[  303.732214]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  303.737320]  ? pvclock_read_flags+0x160/0x160
[  303.741890]  ? lapic_next_event+0x5a/0x90
[  303.746038]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.751579]  ? kvm_clock_read+0x18/0x30
[  303.755566]  ? kvm_sched_clock_read+0x9/0x20
[  303.759993]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.765531]  ? check_preemption_disabled+0x48/0x280
[  303.770571]  irq_exit+0x17f/0x1c0
[  303.774024]  smp_apic_timer_interrupt+0x1cb/0x760
[  303.778864]  ? smp_reschedule_interrupt+0x109/0x650
[  303.783892]  ? smp_call_function_single_interrupt+0x650/0x650
[  303.789773]  ? interrupt_entry+0xb5/0xc0
[  303.793854]  ? trace_hardirqs_off_caller+0xbb/0x310
[  303.798884]  ? trace_hardirqs_off_caller+0xbb/0x310
[  303.803904]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.808750]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.813764]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.818795]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.823644]  apic_timer_interrupt+0xf/0x20
[  303.827894]  </IRQ>
[  303.830135] RIP: 0010:dump_stack+0x358/0x39d
[  303.834543] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  303.853439] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  303.861148] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  303.868420] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  303.876159] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  303.883426] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  303.890698] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  303.897981]  ? dump_stack+0x34f/0x39d
[  303.901795]  ? dump_stack_print_info.cold.1+0x20/0x20
[  303.906987]  ? mark_held_locks+0x130/0x130
[  303.911224]  ? mark_held_locks+0x130/0x130
[  303.915467]  dump_header+0x27b/0xf72
[  303.919208]  ? pagefault_out_of_memory+0x197/0x197
[  303.924161]  ? __lock_acquire+0x62f/0x4c20
[  303.928396]  ? percpu_ref_get_many+0x240/0x240
[  303.932983]  ? print_usage_bug+0xc0/0xc0
[  303.937048]  ? zap_class+0x640/0x640
[  303.940761]  ? print_usage_bug+0xc0/0xc0
[  303.944822]  ? print_usage_bug+0xc0/0xc0
[  303.948889]  ? zap_class+0x640/0x640
[  303.952636]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.958174]  ? find_held_lock+0x36/0x1c0
[  303.962249]  ? mark_held_locks+0xc7/0x130
[  303.966397]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  303.971496]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  303.976609]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  303.981196]  ? trace_hardirqs_on+0xbd/0x310
[  303.985530]  ? kasan_check_read+0x11/0x20
[  303.989684]  ? ___ratelimit+0x3b4/0x672
[  303.993678]  ? trace_hardirqs_off_caller+0x310/0x310
[  303.998782]  ? trace_hardirqs_on+0x310/0x310
[  304.003203]  ? lock_downgrade+0x900/0x900
[  304.007373]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  304.012493]  ? ___ratelimit+0x3b9/0x672
[  304.016464]  ? idr_get_free+0xf70/0xf70
[  304.020432]  ? find_held_lock+0x36/0x1c0
[  304.024497]  oom_kill_process.cold.27+0x10/0x903
[  304.029260]  ? zap_class+0x640/0x640
[  304.032978]  ? check_preemption_disabled+0x48/0x280
[  304.038000]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  304.042973]  ? kasan_check_read+0x11/0x20
[  304.047110]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.052392]  ? oom_evaluate_task+0x540/0x540
[  304.056807]  ? find_held_lock+0x36/0x1c0
[  304.060868]  ? out_of_memory+0x974/0x1430
[  304.065047]  ? lock_downgrade+0x900/0x900
[  304.069216]  ? check_preemption_disabled+0x48/0x280
[  304.074226]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  304.079147]  ? kasan_check_read+0x11/0x20
[  304.083301]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.088590]  ? rcu_softirq_qs+0x20/0x20
[  304.092587]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.098113]  ? oom_evaluate_task+0x302/0x540
[  304.102516]  out_of_memory+0xa84/0x1430
[  304.106484]  ? oom_killer_disable+0x3a0/0x3a0
[  304.110971]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  304.115917]  ? __ww_mutex_check_waiters+0x160/0x160
[  304.120973]  __alloc_pages_slowpath+0x2354/0x2e10
[  304.125843]  ? warn_alloc+0x120/0x120
[  304.129648]  ? mark_held_locks+0x130/0x130
[  304.133896]  ? find_get_entry+0xaae/0x1120
[  304.138146]  ? filemap_map_pages+0x1a20/0x1a20
[  304.142735]  ? zap_class+0x640/0x640
[  304.146456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.151998]  ? check_preemption_disabled+0x48/0x280
[  304.157012]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.162546]  ? should_fail+0x22d/0xd01
[  304.166439]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  304.171559]  ? zap_class+0x640/0x640
[  304.175298]  ? __lock_is_held+0xb5/0x140
[  304.179369]  ? mark_held_locks+0x130/0x130
[  304.183622]  ? lock_release+0xa00/0xa00
[  304.187632]  ? perf_trace_sched_process_exec+0x860/0x860
[  304.193084]  ? xa_load+0x2ba/0x460
[  304.196624]  ? lock_downgrade+0x900/0x900
[  304.200820]  ? __might_sleep+0x95/0x190
[  304.204800]  __alloc_pages_nodemask+0xa80/0xde0
[  304.209477]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  304.214495]  ? __page_cache_alloc+0x191/0x5c0
[  304.218989]  ? xa_load+0x2e1/0x460
[  304.222531]  ? xa_clear_mark+0x40/0x40
[  304.226419]  ? zap_class+0x640/0x640
[  304.230143]  ? zap_class+0x640/0x640
[  304.233855]  ? zap_class+0x640/0x640
[  304.237573]  ? __do_page_cache_readahead+0x663/0x810
[  304.242724]  ? find_held_lock+0x36/0x1c0
[  304.246791]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  304.252335]  alloc_pages_current+0x173/0x350
[  304.256751]  __page_cache_alloc+0x38c/0x5c0
[  304.261071]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  304.266003]  ? kasan_check_read+0x11/0x20
[  304.270155]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.275444]  ? generic_perform_write+0x6a0/0x6a0
[  304.280205]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.285747]  ? check_preemption_disabled+0x48/0x280
[  304.290779]  filemap_fault+0x1595/0x25f0
[  304.294892]  ? __lock_page_or_retry+0xa00/0xa00
[  304.299564]  ? mark_held_locks+0x130/0x130
[  304.303810]  ? filemap_map_pages+0xd6b/0x1a20
[  304.308324]  ? lock_downgrade+0x900/0x900
[  304.312470]  ? check_preemption_disabled+0x48/0x280
[  304.317509]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  304.322439]  ? kasan_check_read+0x11/0x20
[  304.326585]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.331861]  ? rcu_softirq_qs+0x20/0x20
[  304.335857]  ? filemap_map_pages+0xd92/0x1a20
[  304.340366]  ? print_usage_bug+0xc0/0xc0
[  304.344436]  ? find_get_entries_tag+0x1400/0x1400
[  304.349278]  ? __kasan_slab_free+0x102/0x150
[  304.353706]  ? kasan_slab_free+0xe/0x10
[  304.357697]  ? kmem_cache_free+0x83/0x290
[  304.361845]  ? __sigqueue_free.part.29+0x74/0x90
[  304.366653]  ? lock_acquire+0x1ed/0x520
[  304.370632]  ? ext4_filemap_fault+0x7a/0xad
[  304.374960]  ? lock_release+0xa00/0xa00
[  304.378932]  ? perf_trace_sched_process_exec+0x860/0x860
[  304.384383]  ? print_usage_bug+0xc0/0xc0
[  304.388447]  ? print_usage_bug+0xc0/0xc0
[  304.392520]  ? down_read+0x8d/0x120
[  304.396145]  ? ext4_filemap_fault+0x7a/0xad
[  304.400466]  ? __down_interruptible+0x700/0x700
[  304.405153]  ext4_filemap_fault+0x82/0xad
[  304.409308]  __do_fault+0x100/0x6b0
[  304.412943]  ? pmd_devmap_trans_unstable+0x220/0x220
[  304.418048]  ? mark_held_locks+0x130/0x130
[  304.422285]  ? mark_held_locks+0x130/0x130
[  304.426522]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  304.432098]  ? rcu_pm_notify+0xc0/0xc0
[  304.435996]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.441541]  __handle_mm_fault+0x3ea0/0x5be0
[  304.445985]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  304.450843]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.455346]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  304.459932]  ? trace_hardirqs_on+0xbd/0x310
[  304.464252]  ? kasan_check_read+0x11/0x20
[  304.468409]  ? __set_current_blocked+0xdf/0x120
[  304.473078]  ? trace_hardirqs_off_caller+0x310/0x310
[  304.478227]  ? zap_class+0x640/0x640
[  304.481954]  ? zap_class+0x640/0x640
[  304.485679]  ? find_held_lock+0x36/0x1c0
[  304.489750]  ? handle_mm_fault+0x42a/0xc70
[  304.493986]  ? lock_downgrade+0x900/0x900
[  304.498133]  ? check_preemption_disabled+0x48/0x280
[  304.503153]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  304.508081]  ? kasan_check_read+0x11/0x20
[  304.512246]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.517523]  ? rcu_softirq_qs+0x20/0x20
[  304.521507]  ? trace_hardirqs_off_caller+0x310/0x310
[  304.526607]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.532139]  ? check_preemption_disabled+0x48/0x280
[  304.537163]  handle_mm_fault+0x54f/0xc70
[  304.541222]  ? __handle_mm_fault+0x5be0/0x5be0
[  304.545802]  ? find_vma+0x34/0x190
[  304.549340]  __do_page_fault+0x5e8/0xe60
[  304.553400]  ? exit_to_usermode_loop+0x1f4/0x380
[  304.558220]  do_page_fault+0xf2/0x7e0
[  304.562018]  ? vmalloc_sync_all+0x30/0x30
[  304.566179]  ? error_entry+0x70/0xd0
[  304.569897]  ? trace_hardirqs_off_caller+0xbb/0x310
[  304.574950]  ? trace_hardirqs_on_caller+0xc0/0x310
[  304.579897]  ? syscall_return_slowpath+0x5e0/0x5e0
[  304.584820]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  304.589658]  ? trace_hardirqs_on_caller+0x310/0x310
[  304.594693]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  304.600139]  ? prepare_exit_to_usermode+0x291/0x3b0
[  304.605161]  ? page_fault+0x8/0x30
[  304.608698]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  304.613534]  ? page_fault+0x8/0x30
[  304.617067]  page_fault+0x1e/0x30
[  304.620511] RIP: 0033:0x45db60
[  304.623708] Code: Bad RIP value.
[  304.627063] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  304.632420] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  304.639684] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  304.646944] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  304.654208] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  304.661480] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  304.668785] warn_alloc_show_mem: 1 callbacks suppressed
[  304.668795] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  304.668797] Mem-Info:
[  304.668824] active_anon:54051 inactive_anon:192 isolated_anon:0
[  304.668824]  active_file:9 inactive_file:20 isolated_file:0
[  304.668824]  unevictable:0 dirty:0 writeback:0 unstable:0
[  304.668824]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  304.668824]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  304.668824]  free:13735 free_pcp:540 free_cma:0
[  304.674151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  304.674158] Call Trace:
[  304.681426] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  304.683829]  <IRQ>
[  304.716611] 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
[  304.725970]  dump_stack+0x244/0x39d
[  304.728526] lowmem_reserve[]: 0 2818 6321 6321
[  304.755927]  ? dump_stack_print_info.cold.1+0x20/0x20
[  304.758096] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  304.784259]  warn_alloc.cold.116+0xb7/0x1bd
[  304.787852] lowmem_reserve[]: 0 0 3503 3503
[  304.792436]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  304.797597] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  304.825373]  ? lock_downgrade+0x900/0x900
[  304.829682] lowmem_reserve[]: 0 0 0 0
[  304.833997]  ? trace_hardirqs_off+0xb8/0x310
[  304.838811] 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
[  304.867858]  ? trace_hardirqs_off+0xb8/0x310
[  304.871976] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  304.875765]  __alloc_pages_slowpath+0x26e8/0x2e10
[  304.880140] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  304.893685]  ? warn_alloc+0x120/0x120
[  304.898059] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  304.913313]  ? print_usage_bug+0xc0/0xc0
[  304.918137] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  304.932250]  ? warn_alloc+0x120/0x120
[  304.936024] 273 total pagecache pages
[  304.944843]  ? warn_alloc+0x120/0x120
[  304.948917] 0 pages in swap cache
[  304.957511]  ? print_usage_bug+0xc0/0xc0
[  304.961309] Swap cache stats: add 0, delete 0, find 0/0
[  304.965104]  ? kvm_clock_read+0x18/0x30
[  304.968872] Free swap  = 0kB
[  304.972314]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  304.976357] Total swap = 0kB
[  304.981724]  ? print_usage_bug+0xc0/0xc0
[  304.985664] 1965979 pages RAM
[  304.988666]  ? __lock_acquire+0x62f/0x4c20
[  304.993710] 0 pages HighMem/MovableOnly
[  304.996726]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.000755] 342853 pages reserved
[  305.003848]  ? should_fail+0x22d/0xd01
[  305.008085] 0 pages cma reserved
[  305.012075]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.017695] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  305.021084]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.025017] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  305.028296]  ? __lock_acquire+0x62f/0x4c20
[  305.033560] syz-fuzzer cpuset=/ mems_allowed=0
[  305.040037]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.069251]  ? __lock_acquire+0x62f/0x4c20
[  305.073492]  ? should_fail+0x22d/0xd01
[  305.077368]  ? rcu_irq_exit+0x1a2/0x390
[  305.081355]  ? mark_held_locks+0x130/0x130
[  305.085588]  ? mark_held_locks+0x130/0x130
[  305.089851]  ? mark_held_locks+0xc7/0x130
[  305.094045]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  305.099052]  ? zap_class+0x640/0x640
[  305.102762]  ? print_usage_bug+0xc0/0xc0
[  305.106822]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.112371]  ? check_preemption_disabled+0x48/0x280
[  305.117387]  ? __lock_is_held+0xb5/0x140
[  305.121460]  __alloc_pages_nodemask+0xa80/0xde0
[  305.126121]  ? zap_class+0x640/0x640
[  305.129851]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  305.134901]  ? find_held_lock+0x36/0x1c0
[  305.138975]  ? ____cache_alloc_node+0x1c7/0x1e0
[  305.143642]  ? lock_downgrade+0x900/0x900
[  305.147789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.153323]  cache_grow_begin+0xa5/0x8c0
[  305.157399]  ? do_raw_spin_unlock+0xa7/0x330
[  305.161843]  fallback_alloc+0x204/0x2e0
[  305.165818]  ____cache_alloc_node+0x1c7/0x1e0
[  305.170328]  kmem_cache_alloc_node+0xe3/0x730
[  305.174852]  ? ipv6_get_ifaddr+0x42e/0x620
[  305.179104]  __alloc_skb+0x119/0x770
[  305.182812]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.188089]  ? netdev_alloc_frag+0x1f0/0x1f0
[  305.192494]  ? lock_downgrade+0x900/0x900
[  305.196651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.202194]  ? refcount_sub_and_test_checked+0x203/0x310
[  305.207644]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  305.213094]  ? addrconf_rs_timer+0x690/0x690
[  305.217514]  ndisc_alloc_skb+0x144/0x340
[  305.221670]  ndisc_send_rs+0x331/0x6e0
[  305.225558]  addrconf_rs_timer+0x314/0x690
[  305.229797]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.234038]  call_timer_fn+0x272/0x920
[  305.237921]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.242153]  ? process_timeout+0x40/0x40
[  305.246223]  ? __run_timers+0x7da/0xc70
[  305.250196]  ? _raw_spin_unlock_irq+0x27/0x80
[  305.254691]  ? _raw_spin_unlock_irq+0x27/0x80
[  305.259184]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.263416]  ? lockdep_hardirqs_on+0x296/0x5b0
[  305.267995]  ? trace_hardirqs_on+0xbd/0x310
[  305.272308]  ? kasan_check_read+0x11/0x20
[  305.276462]  ? __run_timers+0x7da/0xc70
[  305.280464]  ? trace_hardirqs_off_caller+0x310/0x310
[  305.285580]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.289809]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.294033]  __run_timers+0x7e5/0xc70
[  305.297839]  ? timer_fixup_init+0x70/0x70
[  305.301983]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  305.307003]  ? zap_class+0x640/0x640
[  305.310729]  ? enqueue_hrtimer+0x1a5/0x560
[  305.314972]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  305.320161]  ? find_held_lock+0x36/0x1c0
[  305.324222]  ? zap_class+0x640/0x640
[  305.327931]  ? pvclock_read_flags+0x160/0x160
[  305.332423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.337954]  ? check_preemption_disabled+0x48/0x280
[  305.342971]  ? __lock_is_held+0xb5/0x140
[  305.347026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.352557]  ? check_preemption_disabled+0x48/0x280
[  305.357604]  run_timer_softirq+0x52/0xb0
[  305.361706]  ? rcu_read_lock_sched_held+0x14f/0x180
[  305.366716]  __do_softirq+0x308/0xb7e
[  305.370543]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  305.375060]  ? lock_downgrade+0x900/0x900
[  305.379207]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  305.384325]  ? pvclock_read_flags+0x160/0x160
[  305.388817]  ? lapic_next_event+0x5a/0x90
[  305.392963]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.398504]  ? kvm_clock_read+0x18/0x30
[  305.402485]  ? kvm_sched_clock_read+0x9/0x20
[  305.406896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.412431]  ? check_preemption_disabled+0x48/0x280
[  305.417464]  irq_exit+0x17f/0x1c0
[  305.420918]  smp_apic_timer_interrupt+0x1cb/0x760
[  305.425758]  ? smp_reschedule_interrupt+0x109/0x650
[  305.430772]  ? smp_call_function_single_interrupt+0x650/0x650
[  305.436668]  ? interrupt_entry+0xb5/0xc0
[  305.440725]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.445740]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.450751]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.455593]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.460617]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.465646]  ? task_prio+0x50/0x50
[  305.469200]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.474754]  ? check_preemption_disabled+0x48/0x280
[  305.479786]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.484648]  apic_timer_interrupt+0xf/0x20
[  305.488867]  </IRQ>
[  305.491107] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  305.496034] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  305.514927] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  305.522625] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  305.529892] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  305.537189] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  305.544447] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  305.551723] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  305.559011]  skb_clone+0x1bb/0x500
[  305.562544]  ? finish_task_switch+0x2f4/0x910
[  305.567030]  ? skb_split+0x11e0/0x11e0
[  305.570907]  ? preempt_notifier_register+0x200/0x200
[  305.576022]  ? __switch_to_asm+0x34/0x70
[  305.580089]  ? __switch_to_asm+0x34/0x70
[  305.584155]  ? __switch_to_asm+0x40/0x70
[  305.588211]  ? __switch_to_asm+0x34/0x70
[  305.592263]  ? __switch_to_asm+0x40/0x70
[  305.596344]  ? __switch_to_asm+0x34/0x70
[  305.600412]  ? __switch_to_asm+0x40/0x70
[  305.604480]  ? __switch_to_asm+0x34/0x70
[  305.608535]  ? __switch_to_asm+0x34/0x70
[  305.612610]  ? __switch_to_asm+0x40/0x70
[  305.616666]  ? __switch_to_asm+0x34/0x70
[  305.620729]  bpf_clone_redirect+0xb9/0x490
[  305.624958]  ? __schedule+0x8d7/0x21d0
[  305.628844]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  305.633857]  ? __sched_text_start+0x8/0x8
[  305.638007]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  305.642770]  ? find_held_lock+0x36/0x1c0
[  305.646833]  ? lock_acquire+0x1ed/0x520
[  305.650809]  ? bpf_test_run+0x3cb/0x780
[  305.654781]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.660345]  ? check_preemption_disabled+0x48/0x280
[  305.665361]  ? kasan_check_read+0x11/0x20
[  305.669581]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.674851]  ? rcu_softirq_qs+0x20/0x20
[  305.678829]  ? preempt_schedule+0x4d/0x60
[  305.682974]  ? ___preempt_schedule+0x16/0x18
[  305.687386]  ? bpf_test_run+0x25d/0x780
[  305.691365]  ? netlink_diag_dump+0x2a0/0x2a0
[  305.695803]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.701349]  ? bpf_test_init.isra.10+0x70/0x100
[  305.706024]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  305.710788]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  305.715626]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  305.721163]  ? fput+0x130/0x1a0
[  305.724453]  ? __bpf_prog_get+0x9b/0x290
[  305.728520]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  305.733374]  ? bpf_prog_test_run+0x130/0x1a0
[  305.737800]  ? __x64_sys_bpf+0x3d8/0x520
[  305.741924]  ? bpf_prog_get+0x20/0x20
[  305.745761]  ? do_syscall_64+0x1b9/0x820
[  305.749822]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  305.755206]  ? syscall_return_slowpath+0x5e0/0x5e0
[  305.760141]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.765160]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  305.770186]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  305.776864]  ? __switch_to_asm+0x40/0x70
[  305.780937]  ? __switch_to_asm+0x34/0x70
[  305.785003]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.789867]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  305.795269] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  305.795328] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  305.802278] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  305.802286] Call Trace:
[  305.808861] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  305.818123]  <IRQ>
[  305.820690] syz-executor3 cpuset=syz3 mems_allowed=0
[  305.831167]  dump_stack+0x244/0x39d
[  305.842026]  ? dump_stack_print_info.cold.1+0x20/0x20
[  305.847224]  warn_alloc.cold.116+0xb7/0x1bd
[  305.851569]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  305.856430]  ? lock_downgrade+0x900/0x900
[  305.860593]  ? trace_hardirqs_off+0xb8/0x310
[  305.865033]  ? trace_hardirqs_off+0xb8/0x310
[  305.869448]  __alloc_pages_slowpath+0x26e8/0x2e10
[  305.874801]  ? warn_alloc+0x120/0x120
[  305.878603]  ? print_usage_bug+0xc0/0xc0
[  305.882664]  ? warn_alloc+0x120/0x120
[  305.886469]  ? warn_alloc+0x120/0x120
[  305.890269]  ? print_usage_bug+0xc0/0xc0
[  305.894322]  ? kvm_clock_read+0x18/0x30
[  305.898288]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  305.903314]  ? print_usage_bug+0xc0/0xc0
[  305.907468]  ? __lock_acquire+0x62f/0x4c20
[  305.911703]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.917237]  ? should_fail+0x22d/0xd01
[  305.921119]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.926394]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.931510]  ? __lock_acquire+0x62f/0x4c20
[  305.935759]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.940855]  ? __lock_acquire+0x62f/0x4c20
[  305.945085]  ? should_fail+0x22d/0xd01
[  305.948966]  ? rcu_irq_exit+0x1a2/0x390
[  305.952958]  ? mark_held_locks+0x130/0x130
[  305.957189]  ? mark_held_locks+0x130/0x130
[  305.961421]  ? mark_held_locks+0xc7/0x130
[  305.965561]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  305.970579]  ? zap_class+0x640/0x640
[  305.974312]  ? print_usage_bug+0xc0/0xc0
[  305.978365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.983911]  ? check_preemption_disabled+0x48/0x280
[  305.988936]  ? __lock_is_held+0xb5/0x140
[  305.993004]  __alloc_pages_nodemask+0xa80/0xde0
[  305.997660]  ? zap_class+0x640/0x640
[  306.001376]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  306.006392]  ? find_held_lock+0x36/0x1c0
[  306.010490]  ? ____cache_alloc_node+0x1c7/0x1e0
[  306.015164]  ? lock_downgrade+0x900/0x900
[  306.019312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.024846]  cache_grow_begin+0xa5/0x8c0
[  306.028936]  ? do_raw_spin_unlock+0xa7/0x330
[  306.033362]  fallback_alloc+0x204/0x2e0
[  306.037368]  ____cache_alloc_node+0x1c7/0x1e0
[  306.041863]  kmem_cache_alloc_node+0xe3/0x730
[  306.046361]  ? ipv6_get_ifaddr+0x42e/0x620
[  306.050598]  __alloc_skb+0x119/0x770
[  306.054304]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.059577]  ? netdev_alloc_frag+0x1f0/0x1f0
[  306.064017]  ? lock_downgrade+0x900/0x900
[  306.068205]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.073749]  ? refcount_sub_and_test_checked+0x203/0x310
[  306.079209]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  306.084650]  ? addrconf_rs_timer+0x690/0x690
[  306.089085]  ndisc_alloc_skb+0x144/0x340
[  306.093140]  ndisc_send_rs+0x331/0x6e0
[  306.097026]  addrconf_rs_timer+0x314/0x690
[  306.101259]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.105495]  call_timer_fn+0x272/0x920
[  306.109374]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.113607]  ? process_timeout+0x40/0x40
[  306.117693]  ? mark_held_locks+0xc7/0x130
[  306.121836]  ? _raw_spin_unlock_irq+0x27/0x80
[  306.126320]  ? _raw_spin_unlock_irq+0x27/0x80
[  306.130805]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.135038]  ? lockdep_hardirqs_on+0x296/0x5b0
[  306.139623]  ? trace_hardirqs_on+0xbd/0x310
[  306.143954]  ? kasan_check_read+0x11/0x20
[  306.148113]  ? __run_timers+0x7da/0xc70
[  306.152081]  ? trace_hardirqs_off_caller+0x310/0x310
[  306.157197]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.161438]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.165686]  __run_timers+0x7e5/0xc70
[  306.169508]  ? timer_fixup_init+0x70/0x70
[  306.173651]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  306.178690]  ? zap_class+0x640/0x640
[  306.182416]  ? print_usage_bug+0xc0/0xc0
[  306.186492]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  306.191687]  ? find_held_lock+0x36/0x1c0
[  306.195749]  ? zap_class+0x640/0x640
[  306.199464]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.204997]  ? check_preemption_disabled+0x48/0x280
[  306.210037]  ? __lock_is_held+0xb5/0x140
[  306.214114]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.219646]  ? check_preemption_disabled+0x48/0x280
[  306.224661]  run_timer_softirq+0x52/0xb0
[  306.228728]  ? rcu_read_lock_sched_held+0x14f/0x180
[  306.233753]  __do_softirq+0x308/0xb7e
[  306.237562]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  306.242066]  ? lock_downgrade+0x900/0x900
[  306.246241]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  306.251359]  ? pvclock_read_flags+0x160/0x160
[  306.255883]  ? lapic_next_event+0x5a/0x90
[  306.260032]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.265609]  ? kvm_clock_read+0x18/0x30
[  306.269623]  ? kvm_sched_clock_read+0x9/0x20
[  306.274024]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.279560]  ? check_preemption_disabled+0x48/0x280
[  306.284607]  irq_exit+0x17f/0x1c0
[  306.288072]  smp_apic_timer_interrupt+0x1cb/0x760
[  306.292911]  ? smp_reschedule_interrupt+0x109/0x650
[  306.297942]  ? smp_call_function_single_interrupt+0x650/0x650
[  306.303820]  ? interrupt_entry+0xb5/0xc0
[  306.307885]  ? trace_hardirqs_off_caller+0xbb/0x310
[  306.312901]  ? trace_hardirqs_off_caller+0xbb/0x310
[  306.317952]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  306.322786]  ? trace_hardirqs_on_caller+0x310/0x310
[  306.327791]  ? trace_hardirqs_on_caller+0x310/0x310
[  306.332808]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  306.337654]  apic_timer_interrupt+0xf/0x20
[  306.341884]  </IRQ>
[  306.344146] RIP: 0010:dump_stack+0x358/0x39d
[  306.348576] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  306.367514] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  306.375257] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  306.382514] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  306.389782] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  306.397043] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  306.404303] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  306.411615]  ? dump_stack+0x34f/0x39d
[  306.415423]  ? dump_stack_print_info.cold.1+0x20/0x20
[  306.420610]  ? mark_held_locks+0x130/0x130
[  306.424838]  ? mark_held_locks+0x130/0x130
[  306.429089]  dump_header+0x27b/0xf72
[  306.432821]  ? pagefault_out_of_memory+0x197/0x197
[  306.437777]  ? __lock_acquire+0x62f/0x4c20
[  306.442021]  ? percpu_ref_get_many+0x240/0x240
[  306.446605]  ? print_usage_bug+0xc0/0xc0
[  306.450665]  ? zap_class+0x640/0x640
[  306.454380]  ? print_usage_bug+0xc0/0xc0
[  306.458436]  ? print_usage_bug+0xc0/0xc0
[  306.462491]  ? zap_class+0x640/0x640
[  306.466202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.471737]  ? find_held_lock+0x36/0x1c0
[  306.475821]  ? mark_held_locks+0xc7/0x130
[  306.479979]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  306.485071]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  306.490175]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  306.494808]  ? trace_hardirqs_on+0xbd/0x310
[  306.499119]  ? kasan_check_read+0x11/0x20
[  306.503273]  ? ___ratelimit+0x3b4/0x672
[  306.507239]  ? trace_hardirqs_off_caller+0x310/0x310
[  306.512365]  ? trace_hardirqs_on+0x310/0x310
[  306.516780]  ? lock_downgrade+0x900/0x900
[  306.520925]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  306.526020]  ? ___ratelimit+0x3b9/0x672
[  306.529988]  ? idr_get_free+0xf70/0xf70
[  306.533952]  ? find_held_lock+0x36/0x1c0
[  306.538023]  oom_kill_process.cold.27+0x10/0x903
[  306.542766]  ? zap_class+0x640/0x640
[  306.546486]  ? check_preemption_disabled+0x48/0x280
[  306.551511]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  306.556431]  ? kasan_check_read+0x11/0x20
[  306.560566]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.565923]  ? oom_evaluate_task+0x540/0x540
[  306.570328]  ? find_held_lock+0x36/0x1c0
[  306.574386]  ? out_of_memory+0x974/0x1430
[  306.578536]  ? lock_downgrade+0x900/0x900
[  306.582696]  ? check_preemption_disabled+0x48/0x280
[  306.587706]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  306.592636]  ? kasan_check_read+0x11/0x20
[  306.596779]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.602057]  ? rcu_softirq_qs+0x20/0x20
[  306.606031]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.611566]  ? oom_evaluate_task+0x302/0x540
[  306.615979]  out_of_memory+0xa84/0x1430
[  306.619994]  ? oom_killer_disable+0x3a0/0x3a0
[  306.624489]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  306.629421]  ? __ww_mutex_check_waiters+0x160/0x160
[  306.634452]  __alloc_pages_slowpath+0x2354/0x2e10
[  306.639355]  ? warn_alloc+0x120/0x120
[  306.643154]  ? mark_held_locks+0x130/0x130
[  306.647396]  ? find_get_entry+0xaae/0x1120
[  306.651643]  ? filemap_map_pages+0x1a20/0x1a20
[  306.656233]  ? zap_class+0x640/0x640
[  306.659951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.665489]  ? check_preemption_disabled+0x48/0x280
[  306.670506]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.676045]  ? should_fail+0x22d/0xd01
[  306.679944]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  306.685051]  ? zap_class+0x640/0x640
[  306.688789]  ? __lock_is_held+0xb5/0x140
[  306.692884]  ? mark_held_locks+0x130/0x130
[  306.697125]  ? lock_release+0xa00/0xa00
[  306.701101]  ? perf_trace_sched_process_exec+0x860/0x860
[  306.706552]  ? xa_load+0x2ba/0x460
[  306.710096]  ? lock_downgrade+0x900/0x900
[  306.714249]  ? __might_sleep+0x95/0x190
[  306.718231]  __alloc_pages_nodemask+0xa80/0xde0
[  306.722927]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  306.727950]  ? __page_cache_alloc+0x191/0x5c0
[  306.732443]  ? xa_load+0x2e1/0x460
[  306.735984]  ? xa_clear_mark+0x40/0x40
[  306.739873]  ? zap_class+0x640/0x640
[  306.743633]  ? zap_class+0x640/0x640
[  306.747347]  ? zap_class+0x640/0x640
[  306.751062]  ? __do_page_cache_readahead+0x663/0x810
[  306.756181]  ? find_held_lock+0x36/0x1c0
[  306.760247]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  306.765790]  alloc_pages_current+0x173/0x350
[  306.770231]  __page_cache_alloc+0x38c/0x5c0
[  306.774551]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  306.779481]  ? kasan_check_read+0x11/0x20
[  306.783643]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.788941]  ? generic_perform_write+0x6a0/0x6a0
[  306.793716]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.799253]  ? check_preemption_disabled+0x48/0x280
[  306.804278]  filemap_fault+0x1595/0x25f0
[  306.808352]  ? __lock_page_or_retry+0xa00/0xa00
[  306.813026]  ? mark_held_locks+0x130/0x130
[  306.817279]  ? filemap_map_pages+0xd6b/0x1a20
[  306.821823]  ? lock_downgrade+0x900/0x900
[  306.825968]  ? check_preemption_disabled+0x48/0x280
[  306.830997]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  306.835923]  ? kasan_check_read+0x11/0x20
[  306.840067]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.845341]  ? rcu_softirq_qs+0x20/0x20
[  306.849324]  ? filemap_map_pages+0xd92/0x1a20
[  306.853822]  ? print_usage_bug+0xc0/0xc0
[  306.857906]  ? find_get_entries_tag+0x1400/0x1400
[  306.862750]  ? __kasan_slab_free+0x102/0x150
[  306.867158]  ? kasan_slab_free+0xe/0x10
[  306.871132]  ? kmem_cache_free+0x83/0x290
[  306.875298]  ? __sigqueue_free.part.29+0x74/0x90
[  306.880070]  ? lock_acquire+0x1ed/0x520
[  306.884043]  ? ext4_filemap_fault+0x7a/0xad
[  306.888369]  ? lock_release+0xa00/0xa00
[  306.892345]  ? perf_trace_sched_process_exec+0x860/0x860
[  306.897797]  ? print_usage_bug+0xc0/0xc0
[  306.901862]  ? print_usage_bug+0xc0/0xc0
[  306.905945]  ? down_read+0x8d/0x120
[  306.909568]  ? ext4_filemap_fault+0x7a/0xad
[  306.913899]  ? __down_interruptible+0x700/0x700
[  306.918582]  ext4_filemap_fault+0x82/0xad
[  306.922734]  __do_fault+0x100/0x6b0
[  306.926365]  ? pmd_devmap_trans_unstable+0x220/0x220
[  306.931489]  ? mark_held_locks+0x130/0x130
[  306.935727]  ? mark_held_locks+0x130/0x130
[  306.939964]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  306.945508]  ? rcu_pm_notify+0xc0/0xc0
[  306.949410]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.954955]  __handle_mm_fault+0x3ea0/0x5be0
[  306.959372]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  306.964221]  ? _raw_spin_unlock_irq+0x27/0x80
[  306.968732]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  306.973319]  ? trace_hardirqs_on+0xbd/0x310
[  306.977654]  ? kasan_check_read+0x11/0x20
[  306.981817]  ? __set_current_blocked+0xdf/0x120
[  306.986488]  ? trace_hardirqs_off_caller+0x310/0x310
[  306.991601]  ? zap_class+0x640/0x640
[  306.995313]  ? zap_class+0x640/0x640
[  306.999033]  ? find_held_lock+0x36/0x1c0
[  307.003103]  ? handle_mm_fault+0x42a/0xc70
[  307.007343]  ? lock_downgrade+0x900/0x900
[  307.011490]  ? check_preemption_disabled+0x48/0x280
[  307.016509]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.021439]  ? kasan_check_read+0x11/0x20
[  307.025614]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.030902]  ? rcu_softirq_qs+0x20/0x20
[  307.034905]  ? trace_hardirqs_off_caller+0x310/0x310
[  307.040012]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.045550]  ? check_preemption_disabled+0x48/0x280
[  307.050580]  handle_mm_fault+0x54f/0xc70
[  307.054646]  ? __handle_mm_fault+0x5be0/0x5be0
[  307.059250]  ? find_vma+0x34/0x190
[  307.062809]  __do_page_fault+0x5e8/0xe60
[  307.066867]  ? exit_to_usermode_loop+0x1f4/0x380
[  307.071642]  do_page_fault+0xf2/0x7e0
[  307.075480]  ? vmalloc_sync_all+0x30/0x30
[  307.079628]  ? error_entry+0x70/0xd0
[  307.083341]  ? trace_hardirqs_off_caller+0xbb/0x310
[  307.088357]  ? trace_hardirqs_on_caller+0xc0/0x310
[  307.093284]  ? syscall_return_slowpath+0x5e0/0x5e0
[  307.098213]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.103055]  ? trace_hardirqs_on_caller+0x310/0x310
[  307.108071]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  307.113522]  ? prepare_exit_to_usermode+0x291/0x3b0
[  307.118533]  ? page_fault+0x8/0x30
[  307.122079]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.126927]  ? page_fault+0x8/0x30
[  307.130467]  page_fault+0x1e/0x30
[  307.133913] RIP: 0033:0x45db60
[  307.137131] Code: Bad RIP value.
[  307.140491] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  307.145853] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  307.153122] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  307.160388] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  307.167653] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  307.174923] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  307.182210] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  307.182215] warn_alloc_show_mem: 1 callbacks suppressed
[  307.182222] Mem-Info:
[  307.189501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  307.194863] active_anon:54051 inactive_anon:192 isolated_anon:0
[  307.194863]  active_file:9 inactive_file:20 isolated_file:0
[  307.194863]  unevictable:0 dirty:0 writeback:0 unstable:0
[  307.194863]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  307.194863]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  307.194863]  free:13735 free_pcp:540 free_cma:0
[  307.197232] Call Trace:
[  307.206613] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  307.239367]  <IRQ>
[  307.241931] 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
[  307.269385]  dump_stack+0x244/0x39d
[  307.271509] lowmem_reserve[]: 0 2818 6321 6321
[  307.297609]  ? dump_stack_print_info.cold.1+0x20/0x20
[  307.301221] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  307.305810]  warn_alloc.cold.116+0xb7/0x1bd
[  307.310979] lowmem_reserve[]: 0 0 3503 3503
[  307.338723]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  307.343029] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  307.347353]  ? lock_downgrade+0x900/0x900
[  307.352165] lowmem_reserve[]: 0 0 0 0
[  307.381219]  ? trace_hardirqs_off+0xb8/0x310
[  307.385337] 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
[  307.389152]  ? trace_hardirqs_off+0xb8/0x310
[  307.393542] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  307.407054]  __alloc_pages_slowpath+0x26e8/0x2e10
[  307.411429] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  307.426719]  ? warn_alloc+0x120/0x120
[  307.431518] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  307.445636]  ? print_usage_bug+0xc0/0xc0
[  307.449411] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  307.458239]  ? warn_alloc+0x120/0x120
[  307.462270] 273 total pagecache pages
[  307.470858]  ? warn_alloc+0x120/0x120
[  307.474644] 0 pages in swap cache
[  307.478458]  ? print_usage_bug+0xc0/0xc0
[  307.482247] Swap cache stats: add 0, delete 0, find 0/0
[  307.485697]  ? kvm_clock_read+0x18/0x30
[  307.489732] Free swap  = 0kB
[  307.495081]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  307.499024] Total swap = 0kB
[  307.502035]  ? print_usage_bug+0xc0/0xc0
[  307.507023] 1965979 pages RAM
[  307.510041]  ? __lock_acquire+0x62f/0x4c20
[  307.514088] 0 pages HighMem/MovableOnly
[  307.517184]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.521383] 342853 pages reserved
[  307.525433]  ? should_fail+0x22d/0xd01
[  307.530942] 0 pages cma reserved
[  307.534382]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.538293] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  307.541591]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  307.546919] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  307.553348]  ? __lock_acquire+0x62f/0x4c20
[  307.558424] syz-fuzzer cpuset=/ mems_allowed=0
[  307.568633]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  307.582549]  ? __lock_acquire+0x62f/0x4c20
[  307.586800]  ? should_fail+0x22d/0xd01
[  307.590681]  ? rcu_irq_exit+0x1a2/0x390
[  307.594662]  ? mark_held_locks+0x130/0x130
[  307.598905]  ? mark_held_locks+0x130/0x130
[  307.603146]  ? mark_held_locks+0xc7/0x130
[  307.607305]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  307.612318]  ? zap_class+0x640/0x640
[  307.616028]  ? print_usage_bug+0xc0/0xc0
[  307.620095]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.625728]  ? check_preemption_disabled+0x48/0x280
[  307.630751]  ? __lock_is_held+0xb5/0x140
[  307.634815]  __alloc_pages_nodemask+0xa80/0xde0
[  307.639496]  ? zap_class+0x640/0x640
[  307.643216]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  307.648292]  ? find_held_lock+0x36/0x1c0
[  307.652361]  ? ____cache_alloc_node+0x1c7/0x1e0
[  307.657029]  ? lock_downgrade+0x900/0x900
[  307.661200]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.666762]  cache_grow_begin+0xa5/0x8c0
[  307.670825]  ? do_raw_spin_unlock+0xa7/0x330
[  307.675239]  fallback_alloc+0x204/0x2e0
[  307.679217]  ____cache_alloc_node+0x1c7/0x1e0
[  307.683760]  kmem_cache_alloc_node+0xe3/0x730
[  307.688272]  ? ipv6_get_ifaddr+0x42e/0x620
[  307.692525]  __alloc_skb+0x119/0x770
[  307.696238]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.701517]  ? netdev_alloc_frag+0x1f0/0x1f0
[  307.705938]  ? lock_downgrade+0x900/0x900
[  307.710108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.715658]  ? refcount_sub_and_test_checked+0x203/0x310
[  307.721107]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  307.726551]  ? addrconf_rs_timer+0x690/0x690
[  307.730967]  ndisc_alloc_skb+0x144/0x340
[  307.735027]  ndisc_send_rs+0x331/0x6e0
[  307.738936]  addrconf_rs_timer+0x314/0x690
[  307.743351]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.747605]  call_timer_fn+0x272/0x920
[  307.751486]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.755724]  ? process_timeout+0x40/0x40
[  307.759786]  ? __run_timers+0x7da/0xc70
[  307.763769]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.768266]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.772755]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.776981]  ? lockdep_hardirqs_on+0x296/0x5b0
[  307.781554]  ? trace_hardirqs_on+0xbd/0x310
[  307.785868]  ? kasan_check_read+0x11/0x20
[  307.790025]  ? __run_timers+0x7da/0xc70
[  307.794008]  ? trace_hardirqs_off_caller+0x310/0x310
[  307.799113]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.803360]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.807583]  __run_timers+0x7e5/0xc70
[  307.811416]  ? timer_fixup_init+0x70/0x70
[  307.815578]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  307.820602]  ? zap_class+0x640/0x640
[  307.824331]  ? enqueue_hrtimer+0x1a5/0x560
[  307.828561]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  307.833751]  ? find_held_lock+0x36/0x1c0
[  307.837810]  ? zap_class+0x640/0x640
[  307.841539]  ? pvclock_read_flags+0x160/0x160
[  307.846058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.851589]  ? check_preemption_disabled+0x48/0x280
[  307.856611]  ? __lock_is_held+0xb5/0x140
[  307.860668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.866203]  ? check_preemption_disabled+0x48/0x280
[  307.871217]  run_timer_softirq+0x52/0xb0
[  307.875377]  ? rcu_read_lock_sched_held+0x14f/0x180
[  307.880405]  __do_softirq+0x308/0xb7e
[  307.884223]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  307.888730]  ? lock_downgrade+0x900/0x900
[  307.892886]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  307.897992]  ? pvclock_read_flags+0x160/0x160
[  307.902490]  ? lapic_next_event+0x5a/0x90
[  307.906665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.912206]  ? kvm_clock_read+0x18/0x30
[  307.916184]  ? kvm_sched_clock_read+0x9/0x20
[  307.920595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.926147]  ? check_preemption_disabled+0x48/0x280
[  307.931178]  irq_exit+0x17f/0x1c0
[  307.934640]  smp_apic_timer_interrupt+0x1cb/0x760
[  307.939474]  ? smp_reschedule_interrupt+0x109/0x650
[  307.944496]  ? smp_call_function_single_interrupt+0x650/0x650
[  307.950388]  ? interrupt_entry+0xb5/0xc0
[  307.954461]  ? trace_hardirqs_off_caller+0xbb/0x310
[  307.959468]  ? trace_hardirqs_off_caller+0xbb/0x310
[  307.964487]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.969353]  ? trace_hardirqs_on_caller+0x310/0x310
[  307.974417]  ? trace_hardirqs_on_caller+0x310/0x310
[  307.979424]  ? task_prio+0x50/0x50
[  307.982954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.988495]  ? check_preemption_disabled+0x48/0x280
[  307.993536]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.998397]  apic_timer_interrupt+0xf/0x20
[  308.002680]  </IRQ>
[  308.004931] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  308.009858] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  308.028759] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  308.036468] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  308.043729] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  308.050989] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  308.058263] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  308.065522] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  308.072845]  skb_clone+0x1bb/0x500
[  308.076399]  ? finish_task_switch+0x2f4/0x910
[  308.080917]  ? skb_split+0x11e0/0x11e0
[  308.084816]  ? preempt_notifier_register+0x200/0x200
[  308.089920]  ? __switch_to_asm+0x34/0x70
[  308.093992]  ? __switch_to_asm+0x34/0x70
[  308.098052]  ? __switch_to_asm+0x40/0x70
[  308.102107]  ? __switch_to_asm+0x34/0x70
[  308.106156]  ? __switch_to_asm+0x40/0x70
[  308.110214]  ? __switch_to_asm+0x34/0x70
[  308.114285]  ? __switch_to_asm+0x40/0x70
[  308.118336]  ? __switch_to_asm+0x34/0x70
[  308.122409]  ? __switch_to_asm+0x34/0x70
[  308.126474]  ? __switch_to_asm+0x40/0x70
[  308.130557]  ? __switch_to_asm+0x34/0x70
[  308.134650]  bpf_clone_redirect+0xb9/0x490
[  308.138907]  ? __schedule+0x8d7/0x21d0
[  308.142812]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  308.147842]  ? __sched_text_start+0x8/0x8
[  308.151985]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  308.156744]  ? find_held_lock+0x36/0x1c0
[  308.160805]  ? lock_acquire+0x1ed/0x520
[  308.164782]  ? bpf_test_run+0x3cb/0x780
[  308.168750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.174298]  ? check_preemption_disabled+0x48/0x280
[  308.179318]  ? kasan_check_read+0x11/0x20
[  308.183480]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.188786]  ? rcu_softirq_qs+0x20/0x20
[  308.192760]  ? preempt_schedule+0x4d/0x60
[  308.196914]  ? ___preempt_schedule+0x16/0x18
[  308.201329]  ? bpf_test_run+0x25d/0x780
[  308.205314]  ? netlink_diag_dump+0x2a0/0x2a0
[  308.209724]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.215263]  ? bpf_test_init.isra.10+0x70/0x100
[  308.219936]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  308.224717]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  308.229572]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  308.235108]  ? fput+0x130/0x1a0
[  308.238387]  ? __bpf_prog_get+0x9b/0x290
[  308.242446]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  308.247285]  ? bpf_prog_test_run+0x130/0x1a0
[  308.251703]  ? __x64_sys_bpf+0x3d8/0x520
[  308.255761]  ? bpf_prog_get+0x20/0x20
[  308.259569]  ? do_syscall_64+0x1b9/0x820
[  308.263621]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  308.268982]  ? syscall_return_slowpath+0x5e0/0x5e0
[  308.273911]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.278922]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  308.283954]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  308.290627]  ? __switch_to_asm+0x40/0x70
[  308.294690]  ? __switch_to_asm+0x34/0x70
[  308.298765]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.303622]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  308.308994] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  308.309064] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  308.316000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  308.316004] Call Trace:
[  308.316009]  <IRQ>
[  308.316023]  dump_stack+0x244/0x39d
[  308.316042]  ? dump_stack_print_info.cold.1+0x20/0x20
[  308.322611] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  308.331900]  warn_alloc.cold.116+0xb7/0x1bd
[  308.334459] syz-executor3 cpuset=syz3 mems_allowed=0
[  308.336630]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  308.370164]  ? lock_downgrade+0x900/0x900
[  308.374342]  ? trace_hardirqs_off+0xb8/0x310
[  308.378752]  ? trace_hardirqs_off+0xb8/0x310
[  308.383161]  __alloc_pages_slowpath+0x26e8/0x2e10
[  308.388054]  ? warn_alloc+0x120/0x120
[  308.391877]  ? print_usage_bug+0xc0/0xc0
[  308.395963]  ? warn_alloc+0x120/0x120
[  308.399760]  ? warn_alloc+0x120/0x120
[  308.403558]  ? print_usage_bug+0xc0/0xc0
[  308.407610]  ? kvm_clock_read+0x18/0x30
[  308.411602]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  308.416613]  ? print_usage_bug+0xc0/0xc0
[  308.420668]  ? __lock_acquire+0x62f/0x4c20
[  308.424922]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.430472]  ? should_fail+0x22d/0xd01
[  308.434365]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.439643]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  308.444742]  ? __lock_acquire+0x62f/0x4c20
[  308.448991]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  308.454116]  ? __lock_acquire+0x62f/0x4c20
[  308.458348]  ? should_fail+0x22d/0xd01
[  308.462244]  ? rcu_irq_exit+0x1a2/0x390
[  308.466234]  ? mark_held_locks+0x130/0x130
[  308.470478]  ? mark_held_locks+0x130/0x130
[  308.474755]  ? mark_held_locks+0xc7/0x130
[  308.478922]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  308.483954]  ? zap_class+0x640/0x640
[  308.487661]  ? print_usage_bug+0xc0/0xc0
[  308.491723]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.497268]  ? check_preemption_disabled+0x48/0x280
[  308.502321]  ? __lock_is_held+0xb5/0x140
[  308.506387]  __alloc_pages_nodemask+0xa80/0xde0
[  308.511121]  ? zap_class+0x640/0x640
[  308.514831]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  308.519846]  ? find_held_lock+0x36/0x1c0
[  308.523910]  ? ____cache_alloc_node+0x1c7/0x1e0
[  308.528596]  ? lock_downgrade+0x900/0x900
[  308.532743]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.538316]  cache_grow_begin+0xa5/0x8c0
[  308.542401]  ? do_raw_spin_unlock+0xa7/0x330
[  308.546806]  fallback_alloc+0x204/0x2e0
[  308.550791]  ____cache_alloc_node+0x1c7/0x1e0
[  308.555282]  kmem_cache_alloc_node+0xe3/0x730
[  308.559816]  ? ipv6_get_ifaddr+0x42e/0x620
[  308.564047]  __alloc_skb+0x119/0x770
[  308.567747]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.573049]  ? netdev_alloc_frag+0x1f0/0x1f0
[  308.577465]  ? lock_downgrade+0x900/0x900
[  308.581620]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.587163]  ? refcount_sub_and_test_checked+0x203/0x310
[  308.592611]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  308.598075]  ? addrconf_rs_timer+0x690/0x690
[  308.602524]  ndisc_alloc_skb+0x144/0x340
[  308.606589]  ndisc_send_rs+0x331/0x6e0
[  308.610480]  addrconf_rs_timer+0x314/0x690
[  308.614721]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.618966]  call_timer_fn+0x272/0x920
[  308.622870]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.627111]  ? process_timeout+0x40/0x40
[  308.631184]  ? mark_held_locks+0xc7/0x130
[  308.635332]  ? _raw_spin_unlock_irq+0x27/0x80
[  308.639825]  ? _raw_spin_unlock_irq+0x27/0x80
[  308.644316]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.648552]  ? lockdep_hardirqs_on+0x296/0x5b0
[  308.653136]  ? trace_hardirqs_on+0xbd/0x310
[  308.657465]  ? kasan_check_read+0x11/0x20
[  308.661627]  ? __run_timers+0x7da/0xc70
[  308.665651]  ? trace_hardirqs_off_caller+0x310/0x310
[  308.670763]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.675003]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.679253]  __run_timers+0x7e5/0xc70
[  308.683068]  ? timer_fixup_init+0x70/0x70
[  308.687216]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  308.692245]  ? zap_class+0x640/0x640
[  308.695959]  ? print_usage_bug+0xc0/0xc0
[  308.700069]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  308.705271]  ? find_held_lock+0x36/0x1c0
[  308.709336]  ? zap_class+0x640/0x640
[  308.713055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.718604]  ? check_preemption_disabled+0x48/0x280
[  308.723638]  ? __lock_is_held+0xb5/0x140
[  308.727703]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.733270]  ? check_preemption_disabled+0x48/0x280
[  308.738303]  run_timer_softirq+0x52/0xb0
[  308.742362]  ? rcu_read_lock_sched_held+0x14f/0x180
[  308.747390]  __do_softirq+0x308/0xb7e
[  308.751191]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  308.755701]  ? lock_downgrade+0x900/0x900
[  308.759850]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  308.764977]  ? pvclock_read_flags+0x160/0x160
[  308.769476]  ? lapic_next_event+0x5a/0x90
[  308.773623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.779161]  ? kvm_clock_read+0x18/0x30
[  308.783132]  ? kvm_sched_clock_read+0x9/0x20
[  308.787587]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.793126]  ? check_preemption_disabled+0x48/0x280
[  308.798150]  irq_exit+0x17f/0x1c0
[  308.801611]  smp_apic_timer_interrupt+0x1cb/0x760
[  308.806451]  ? smp_reschedule_interrupt+0x109/0x650
[  308.811467]  ? smp_call_function_single_interrupt+0x650/0x650
[  308.817354]  ? interrupt_entry+0xb5/0xc0
[  308.821415]  ? trace_hardirqs_off_caller+0xbb/0x310
[  308.826434]  ? trace_hardirqs_off_caller+0xbb/0x310
[  308.831456]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.836299]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.841316]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.846342]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.851190]  apic_timer_interrupt+0xf/0x20
[  308.855433]  </IRQ>
[  308.857698] RIP: 0010:dump_stack+0x358/0x39d
[  308.862107] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  308.881019] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  308.888726] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  308.896011] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  308.903274] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  308.910555] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  308.917818] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  308.925098]  ? dump_stack+0x34f/0x39d
[  308.928928]  ? dump_stack_print_info.cold.1+0x20/0x20
[  308.934131]  ? mark_held_locks+0x130/0x130
[  308.938361]  ? mark_held_locks+0x130/0x130
[  308.942598]  dump_header+0x27b/0xf72
[  308.946337]  ? pagefault_out_of_memory+0x197/0x197
[  308.951283]  ? __lock_acquire+0x62f/0x4c20
[  308.955519]  ? percpu_ref_get_many+0x240/0x240
[  308.960110]  ? print_usage_bug+0xc0/0xc0
[  308.964165]  ? zap_class+0x640/0x640
[  308.967876]  ? print_usage_bug+0xc0/0xc0
[  308.971965]  ? print_usage_bug+0xc0/0xc0
[  308.976021]  ? zap_class+0x640/0x640
[  308.979728]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.985283]  ? find_held_lock+0x36/0x1c0
[  308.989358]  ? mark_held_locks+0xc7/0x130
[  308.993498]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  308.998593]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  309.003704]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  309.008280]  ? trace_hardirqs_on+0xbd/0x310
[  309.012602]  ? kasan_check_read+0x11/0x20
[  309.016749]  ? ___ratelimit+0x3b4/0x672
[  309.020721]  ? trace_hardirqs_off_caller+0x310/0x310
[  309.025823]  ? trace_hardirqs_on+0x310/0x310
[  309.030233]  ? lock_downgrade+0x900/0x900
[  309.034415]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  309.039518]  ? ___ratelimit+0x3b9/0x672
[  309.043491]  ? idr_get_free+0xf70/0xf70
[  309.047514]  ? find_held_lock+0x36/0x1c0
[  309.051581]  oom_kill_process.cold.27+0x10/0x903
[  309.056345]  ? zap_class+0x640/0x640
[  309.060083]  ? check_preemption_disabled+0x48/0x280
[  309.065102]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.070027]  ? kasan_check_read+0x11/0x20
[  309.074183]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.079459]  ? oom_evaluate_task+0x540/0x540
[  309.083871]  ? find_held_lock+0x36/0x1c0
[  309.087944]  ? out_of_memory+0x974/0x1430
[  309.092093]  ? lock_downgrade+0x900/0x900
[  309.096237]  ? check_preemption_disabled+0x48/0x280
[  309.101253]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.106176]  ? kasan_check_read+0x11/0x20
[  309.110323]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.115596]  ? rcu_softirq_qs+0x20/0x20
[  309.119573]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.125117]  ? oom_evaluate_task+0x302/0x540
[  309.129523]  out_of_memory+0xa84/0x1430
[  309.133501]  ? oom_killer_disable+0x3a0/0x3a0
[  309.138007]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  309.142937]  ? __ww_mutex_check_waiters+0x160/0x160
[  309.147960]  __alloc_pages_slowpath+0x2354/0x2e10
[  309.152825]  ? warn_alloc+0x120/0x120
[  309.156625]  ? mark_held_locks+0x130/0x130
[  309.160867]  ? find_get_entry+0xaae/0x1120
[  309.165135]  ? filemap_map_pages+0x1a20/0x1a20
[  309.169762]  ? zap_class+0x640/0x640
[  309.173495]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.179028]  ? check_preemption_disabled+0x48/0x280
[  309.184044]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.189578]  ? should_fail+0x22d/0xd01
[  309.193480]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  309.198583]  ? zap_class+0x640/0x640
[  309.202317]  ? __lock_is_held+0xb5/0x140
[  309.206384]  ? mark_held_locks+0x130/0x130
[  309.210621]  ? lock_release+0xa00/0xa00
[  309.214590]  ? perf_trace_sched_process_exec+0x860/0x860
[  309.220040]  ? xa_load+0x2ba/0x460
[  309.223577]  ? lock_downgrade+0x900/0x900
[  309.227737]  ? __might_sleep+0x95/0x190
[  309.231712]  __alloc_pages_nodemask+0xa80/0xde0
[  309.236408]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  309.241457]  ? __page_cache_alloc+0x191/0x5c0
[  309.245997]  ? xa_load+0x2e1/0x460
[  309.249534]  ? xa_clear_mark+0x40/0x40
[  309.253419]  ? zap_class+0x640/0x640
[  309.257134]  ? zap_class+0x640/0x640
[  309.260844]  ? zap_class+0x640/0x640
[  309.264550]  ? __do_page_cache_readahead+0x663/0x810
[  309.269647]  ? find_held_lock+0x36/0x1c0
[  309.273721]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  309.279284]  alloc_pages_current+0x173/0x350
[  309.283719]  __page_cache_alloc+0x38c/0x5c0
[  309.288036]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.292972]  ? kasan_check_read+0x11/0x20
[  309.297143]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.302458]  ? generic_perform_write+0x6a0/0x6a0
[  309.307272]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.312819]  ? check_preemption_disabled+0x48/0x280
[  309.317853]  filemap_fault+0x1595/0x25f0
[  309.321959]  ? __lock_page_or_retry+0xa00/0xa00
[  309.326625]  ? mark_held_locks+0x130/0x130
[  309.330861]  ? filemap_map_pages+0xd6b/0x1a20
[  309.335376]  ? lock_downgrade+0x900/0x900
[  309.339562]  ? check_preemption_disabled+0x48/0x280
[  309.344601]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.349521]  ? kasan_check_read+0x11/0x20
[  309.353684]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.358953]  ? rcu_softirq_qs+0x20/0x20
[  309.362937]  ? filemap_map_pages+0xd92/0x1a20
[  309.367430]  ? print_usage_bug+0xc0/0xc0
[  309.371491]  ? find_get_entries_tag+0x1400/0x1400
[  309.376324]  ? __kasan_slab_free+0x102/0x150
[  309.380742]  ? kasan_slab_free+0xe/0x10
[  309.384709]  ? kmem_cache_free+0x83/0x290
[  309.388850]  ? __sigqueue_free.part.29+0x74/0x90
[  309.393634]  ? lock_acquire+0x1ed/0x520
[  309.397604]  ? ext4_filemap_fault+0x7a/0xad
[  309.401970]  ? lock_release+0xa00/0xa00
[  309.405940]  ? perf_trace_sched_process_exec+0x860/0x860
[  309.411394]  ? print_usage_bug+0xc0/0xc0
[  309.415469]  ? print_usage_bug+0xc0/0xc0
[  309.419535]  ? down_read+0x8d/0x120
[  309.423150]  ? ext4_filemap_fault+0x7a/0xad
[  309.427466]  ? __down_interruptible+0x700/0x700
[  309.432163]  ext4_filemap_fault+0x82/0xad
[  309.436323]  __do_fault+0x100/0x6b0
[  309.439958]  ? pmd_devmap_trans_unstable+0x220/0x220
[  309.445073]  ? mark_held_locks+0x130/0x130
[  309.449329]  ? mark_held_locks+0x130/0x130
[  309.453559]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  309.459105]  ? rcu_pm_notify+0xc0/0xc0
[  309.463004]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.468538]  __handle_mm_fault+0x3ea0/0x5be0
[  309.472960]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  309.477788]  ? _raw_spin_unlock_irq+0x27/0x80
[  309.482290]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  309.486865]  ? trace_hardirqs_on+0xbd/0x310
[  309.491202]  ? kasan_check_read+0x11/0x20
[  309.495352]  ? __set_current_blocked+0xdf/0x120
[  309.500028]  ? trace_hardirqs_off_caller+0x310/0x310
[  309.505132]  ? zap_class+0x640/0x640
[  309.508836]  ? zap_class+0x640/0x640
[  309.512550]  ? find_held_lock+0x36/0x1c0
[  309.516614]  ? handle_mm_fault+0x42a/0xc70
[  309.520845]  ? lock_downgrade+0x900/0x900
[  309.524984]  ? check_preemption_disabled+0x48/0x280
[  309.530010]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.534927]  ? kasan_check_read+0x11/0x20
[  309.539086]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.544370]  ? rcu_softirq_qs+0x20/0x20
[  309.548337]  ? trace_hardirqs_off_caller+0x310/0x310
[  309.553445]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.558991]  ? check_preemption_disabled+0x48/0x280
[  309.564026]  handle_mm_fault+0x54f/0xc70
[  309.568082]  ? __handle_mm_fault+0x5be0/0x5be0
[  309.572660]  ? find_vma+0x34/0x190
[  309.576214]  __do_page_fault+0x5e8/0xe60
[  309.580270]  ? exit_to_usermode_loop+0x1f4/0x380
[  309.585029]  do_page_fault+0xf2/0x7e0
[  309.588825]  ? vmalloc_sync_all+0x30/0x30
[  309.593007]  ? error_entry+0x70/0xd0
[  309.596721]  ? trace_hardirqs_off_caller+0xbb/0x310
[  309.601733]  ? trace_hardirqs_on_caller+0xc0/0x310
[  309.606658]  ? syscall_return_slowpath+0x5e0/0x5e0
[  309.611588]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  309.616435]  ? trace_hardirqs_on_caller+0x310/0x310
[  309.621452]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  309.626914]  ? prepare_exit_to_usermode+0x291/0x3b0
[  309.631944]  ? page_fault+0x8/0x30
[  309.635484]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  309.640333]  ? page_fault+0x8/0x30
[  309.643876]  page_fault+0x1e/0x30
[  309.647338] RIP: 0033:0x45db60
[  309.650552] Code: Bad RIP value.
[  309.653912] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  309.659269] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  309.666533] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  309.673798] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  309.681065] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  309.688329] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  309.695623] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  309.695628] warn_alloc_show_mem: 1 callbacks suppressed
[  309.695635] Mem-Info:
[  309.702913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  309.708298] active_anon:54051 inactive_anon:192 isolated_anon:0
[  309.708298]  active_file:9 inactive_file:20 isolated_file:0
[  309.708298]  unevictable:0 dirty:0 writeback:0 unstable:0
[  309.708298]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  309.708298]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  309.708298]  free:13735 free_pcp:540 free_cma:0
[  309.710697] Call Trace:
[  309.720081] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  309.753054]  <IRQ>
[  309.755633] 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
[  309.783047]  dump_stack+0x244/0x39d
[  309.785168] lowmem_reserve[]: 0 2818 6321 6321
[  309.811301]  ? dump_stack_print_info.cold.1+0x20/0x20
[  309.814917] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  309.819508]  warn_alloc.cold.116+0xb7/0x1bd
[  309.824668] lowmem_reserve[]: 0 0 3503 3503
[  309.852437]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  309.856758] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  309.861077]  ? lock_downgrade+0x900/0x900
[  309.865930] lowmem_reserve[]: 0 0 0 0
[  309.895333]  ? trace_hardirqs_off+0xb8/0x310
[  309.899451] 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
[  309.903270]  ? trace_hardirqs_off+0xb8/0x310
[  309.907647] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  309.921180]  __alloc_pages_slowpath+0x26e8/0x2e10
[  309.925553] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  309.940817]  ? warn_alloc+0x120/0x120
[  309.945648] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  309.959761]  ? print_usage_bug+0xc0/0xc0
[  309.963535] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  309.972363]  ? warn_alloc+0x120/0x120
[  309.976399] 273 total pagecache pages
[  309.984971]  ? warn_alloc+0x120/0x120
[  309.988749] 0 pages in swap cache
[  309.992550]  ? print_usage_bug+0xc0/0xc0
[  309.996324] Swap cache stats: add 0, delete 0, find 0/0
[  309.999773]  ? kvm_clock_read+0x18/0x30
[  310.003802] Free swap  = 0kB
[  310.009151]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  310.013097] Total swap = 0kB
[  310.016101]  ? print_usage_bug+0xc0/0xc0
[  310.021088] 1965979 pages RAM
[  310.024092]  ? __lock_acquire+0x62f/0x4c20
[  310.028124] 0 pages HighMem/MovableOnly
[  310.031217]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.035425] 342853 pages reserved
[  310.039382]  ? should_fail+0x22d/0xd01
[  310.044917] 0 pages cma reserved
[  310.048373]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.052288] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  310.055604]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.055619]  ? __lock_acquire+0x62f/0x4c20
[  310.055637]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.060959] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  310.067393]  ? __lock_acquire+0x62f/0x4c20
[  310.072483] syz-fuzzer cpuset=/ mems_allowed=0
[  310.076711]  ? should_fail+0x22d/0xd01
[  310.104652]  ? rcu_irq_exit+0x1a2/0x390
[  310.108641]  ? mark_held_locks+0x130/0x130
[  310.112888]  ? mark_held_locks+0x130/0x130
[  310.117131]  ? mark_held_locks+0xc7/0x130
[  310.121283]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  310.126312]  ? zap_class+0x640/0x640
[  310.130025]  ? print_usage_bug+0xc0/0xc0
[  310.134091]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.139633]  ? check_preemption_disabled+0x48/0x280
[  310.144657]  ? __lock_is_held+0xb5/0x140
[  310.148724]  __alloc_pages_nodemask+0xa80/0xde0
[  310.153400]  ? zap_class+0x640/0x640
[  310.157118]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  310.162142]  ? find_held_lock+0x36/0x1c0
[  310.166242]  ? ____cache_alloc_node+0x1c7/0x1e0
[  310.170938]  ? lock_downgrade+0x900/0x900
[  310.175124]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.180663]  cache_grow_begin+0xa5/0x8c0
[  310.184722]  ? do_raw_spin_unlock+0xa7/0x330
[  310.189137]  fallback_alloc+0x204/0x2e0
[  310.193118]  ____cache_alloc_node+0x1c7/0x1e0
[  310.197630]  kmem_cache_alloc_node+0xe3/0x730
[  310.202125]  ? ipv6_get_ifaddr+0x42e/0x620
[  310.206374]  __alloc_skb+0x119/0x770
[  310.210089]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.215371]  ? netdev_alloc_frag+0x1f0/0x1f0
[  310.219776]  ? lock_downgrade+0x900/0x900
[  310.223929]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.229464]  ? refcount_sub_and_test_checked+0x203/0x310
[  310.234926]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  310.240373]  ? addrconf_rs_timer+0x690/0x690
[  310.244793]  ndisc_alloc_skb+0x144/0x340
[  310.248853]  ndisc_send_rs+0x331/0x6e0
[  310.252766]  addrconf_rs_timer+0x314/0x690
[  310.257024]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.261268]  call_timer_fn+0x272/0x920
[  310.265154]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.269424]  ? process_timeout+0x40/0x40
[  310.273489]  ? __run_timers+0x7da/0xc70
[  310.277458]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.281954]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.286462]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.290710]  ? lockdep_hardirqs_on+0x296/0x5b0
[  310.295287]  ? trace_hardirqs_on+0xbd/0x310
[  310.299613]  ? kasan_check_read+0x11/0x20
[  310.303755]  ? __run_timers+0x7da/0xc70
[  310.307725]  ? trace_hardirqs_off_caller+0x310/0x310
[  310.312830]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.317071]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.321304]  __run_timers+0x7e5/0xc70
[  310.325105]  ? timer_fixup_init+0x70/0x70
[  310.329256]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  310.334280]  ? zap_class+0x640/0x640
[  310.337992]  ? enqueue_hrtimer+0x1a5/0x560
[  310.342220]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  310.347408]  ? find_held_lock+0x36/0x1c0
[  310.351481]  ? zap_class+0x640/0x640
[  310.355194]  ? pvclock_read_flags+0x160/0x160
[  310.359685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.365218]  ? check_preemption_disabled+0x48/0x280
[  310.370235]  ? __lock_is_held+0xb5/0x140
[  310.374292]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.379823]  ? check_preemption_disabled+0x48/0x280
[  310.384837]  run_timer_softirq+0x52/0xb0
[  310.388899]  ? rcu_read_lock_sched_held+0x14f/0x180
[  310.393917]  __do_softirq+0x308/0xb7e
[  310.397714]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  310.402203]  ? lock_downgrade+0x900/0x900
[  310.406348]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  310.411453]  ? pvclock_read_flags+0x160/0x160
[  310.415943]  ? lapic_next_event+0x5a/0x90
[  310.420086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.425637]  ? kvm_clock_read+0x18/0x30
[  310.429609]  ? kvm_sched_clock_read+0x9/0x20
[  310.434014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.439548]  ? check_preemption_disabled+0x48/0x280
[  310.444563]  irq_exit+0x17f/0x1c0
[  310.448026]  smp_apic_timer_interrupt+0x1cb/0x760
[  310.452858]  ? smp_reschedule_interrupt+0x109/0x650
[  310.457899]  ? smp_call_function_single_interrupt+0x650/0x650
[  310.463792]  ? interrupt_entry+0xb5/0xc0
[  310.467848]  ? trace_hardirqs_off_caller+0xbb/0x310
[  310.472873]  ? trace_hardirqs_off_caller+0xbb/0x310
[  310.477911]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.482747]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.487755]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.492776]  ? task_prio+0x50/0x50
[  310.496308]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.501856]  ? check_preemption_disabled+0x48/0x280
[  310.506878]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.511741]  apic_timer_interrupt+0xf/0x20
[  310.515962]  </IRQ>
[  310.518199] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  310.523122] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  310.542052] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  310.549770] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  310.557031] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  310.564306] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  310.571567] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  310.578827] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  310.586120]  skb_clone+0x1bb/0x500
[  310.589660]  ? finish_task_switch+0x2f4/0x910
[  310.594156]  ? skb_split+0x11e0/0x11e0
[  310.598049]  ? preempt_notifier_register+0x200/0x200
[  310.603185]  ? __switch_to_asm+0x34/0x70
[  310.607260]  ? __switch_to_asm+0x34/0x70
[  310.611318]  ? __switch_to_asm+0x40/0x70
[  310.615376]  ? __switch_to_asm+0x34/0x70
[  310.619430]  ? __switch_to_asm+0x40/0x70
[  310.623539]  ? __switch_to_asm+0x34/0x70
[  310.627594]  ? __switch_to_asm+0x40/0x70
[  310.631648]  ? __switch_to_asm+0x34/0x70
[  310.635707]  ? __switch_to_asm+0x34/0x70
[  310.639780]  ? __switch_to_asm+0x40/0x70
[  310.643841]  ? __switch_to_asm+0x34/0x70
[  310.647911]  bpf_clone_redirect+0xb9/0x490
[  310.652147]  ? __schedule+0x8d7/0x21d0
[  310.656071]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  310.661085]  ? __sched_text_start+0x8/0x8
[  310.665230]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  310.669997]  ? find_held_lock+0x36/0x1c0
[  310.674065]  ? lock_acquire+0x1ed/0x520
[  310.678039]  ? bpf_test_run+0x3cb/0x780
[  310.682014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.687551]  ? check_preemption_disabled+0x48/0x280
[  310.692587]  ? kasan_check_read+0x11/0x20
[  310.696730]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.702004]  ? rcu_softirq_qs+0x20/0x20
[  310.705980]  ? preempt_schedule+0x4d/0x60
[  310.710131]  ? ___preempt_schedule+0x16/0x18
[  310.714547]  ? bpf_test_run+0x25d/0x780
[  310.718564]  ? netlink_diag_dump+0x2a0/0x2a0
[  310.722972]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.728521]  ? bpf_test_init.isra.10+0x70/0x100
[  310.733196]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  310.737955]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  310.742790]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  310.748349]  ? fput+0x130/0x1a0
[  310.751628]  ? __bpf_prog_get+0x9b/0x290
[  310.755701]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  310.760538]  ? bpf_prog_test_run+0x130/0x1a0
[  310.764955]  ? __x64_sys_bpf+0x3d8/0x520
[  310.769038]  ? bpf_prog_get+0x20/0x20
[  310.772873]  ? do_syscall_64+0x1b9/0x820
[  310.776978]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  310.782381]  ? syscall_return_slowpath+0x5e0/0x5e0
[  310.787308]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.792338]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  310.797363]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  310.804062]  ? __switch_to_asm+0x40/0x70
[  310.808148]  ? __switch_to_asm+0x34/0x70
[  310.812220]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.817085]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  310.822459] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  310.822548] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  310.829461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  310.829470] Call Trace:
[  310.836075] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  310.845320]  <IRQ>
[  310.847904] syz-executor3 cpuset=syz3 mems_allowed=0
[  310.858392]  dump_stack+0x244/0x39d
[  310.869235]  ? dump_stack_print_info.cold.1+0x20/0x20
[  310.874870]  warn_alloc.cold.116+0xb7/0x1bd
[  310.879546]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  310.884418]  ? lock_downgrade+0x900/0x900
[  310.888572]  ? trace_hardirqs_off+0xb8/0x310
[  310.892981]  ? trace_hardirqs_off+0xb8/0x310
[  310.897405]  __alloc_pages_slowpath+0x26e8/0x2e10
[  310.902266]  ? warn_alloc+0x120/0x120
[  310.906065]  ? print_usage_bug+0xc0/0xc0
[  310.910121]  ? warn_alloc+0x120/0x120
[  310.913923]  ? warn_alloc+0x120/0x120
[  310.917717]  ? print_usage_bug+0xc0/0xc0
[  310.921775]  ? print_usage_bug+0xc0/0xc0
[  310.925832]  ? __lock_acquire+0x62f/0x4c20
[  310.930063]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.935593]  ? should_fail+0x22d/0xd01
[  310.939487]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.944584]  ? __lock_acquire+0x62f/0x4c20
[  310.948815]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.953910]  ? __lock_acquire+0x62f/0x4c20
[  310.958174]  ? should_fail+0x22d/0xd01
[  310.962064]  ? find_held_lock+0x36/0x1c0
[  310.966141]  ? mark_held_locks+0x130/0x130
[  310.970384]  ? mark_held_locks+0x130/0x130
[  310.974608]  ? zap_class+0x640/0x640
[  310.978310]  ? zap_class+0x640/0x640
[  310.982031]  ? print_usage_bug+0xc0/0xc0
[  310.986086]  ? do_raw_spin_unlock+0xa7/0x330
[  310.990496]  ? zap_class+0x640/0x640
[  310.994215]  ? print_usage_bug+0xc0/0xc0
[  310.998292]  ? wq_watchdog_touch+0x9c/0xfe
[  311.002530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.008060]  ? check_preemption_disabled+0x48/0x280
[  311.013076]  ? __lock_is_held+0xb5/0x140
[  311.017150]  __alloc_pages_nodemask+0xa80/0xde0
[  311.021810]  ? zap_class+0x640/0x640
[  311.025522]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  311.030544]  ? find_held_lock+0x36/0x1c0
[  311.034607]  ? ____cache_alloc_node+0x1c7/0x1e0
[  311.039271]  ? lock_downgrade+0x900/0x900
[  311.043417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.048953]  cache_grow_begin+0xa5/0x8c0
[  311.053008]  ? do_raw_spin_unlock+0xa7/0x330
[  311.057426]  fallback_alloc+0x204/0x2e0
[  311.061397]  ____cache_alloc_node+0x1c7/0x1e0
[  311.065896]  kmem_cache_alloc_node+0xe3/0x730
[  311.070385]  ? ipv6_get_ifaddr+0x42e/0x620
[  311.074639]  __alloc_skb+0x119/0x770
[  311.078375]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.083648]  ? netdev_alloc_frag+0x1f0/0x1f0
[  311.088055]  ? lock_downgrade+0x900/0x900
[  311.092202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.097731]  ? refcount_sub_and_test_checked+0x203/0x310
[  311.103190]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  311.108638]  ? addrconf_rs_timer+0x690/0x690
[  311.113057]  ndisc_alloc_skb+0x144/0x340
[  311.117120]  ndisc_send_rs+0x331/0x6e0
[  311.121012]  addrconf_rs_timer+0x314/0x690
[  311.125248]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.129491]  call_timer_fn+0x272/0x920
[  311.133390]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.137629]  ? process_timeout+0x40/0x40
[  311.141704]  ? mark_held_locks+0xc7/0x130
[  311.145864]  ? _raw_spin_unlock_irq+0x27/0x80
[  311.150395]  ? _raw_spin_unlock_irq+0x27/0x80
[  311.154909]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.159144]  ? lockdep_hardirqs_on+0x296/0x5b0
[  311.163722]  ? trace_hardirqs_on+0xbd/0x310
[  311.168036]  ? kasan_check_read+0x11/0x20
[  311.172182]  ? __run_timers+0x7da/0xc70
[  311.176167]  ? trace_hardirqs_off_caller+0x310/0x310
[  311.181269]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.185505]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.189733]  __run_timers+0x7e5/0xc70
[  311.193542]  ? timer_fixup_init+0x70/0x70
[  311.197703]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  311.202713]  ? zap_class+0x640/0x640
[  311.206426]  ? print_usage_bug+0xc0/0xc0
[  311.210485]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  311.215680]  ? find_held_lock+0x36/0x1c0
[  311.219748]  ? zap_class+0x640/0x640
[  311.223461]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.229004]  ? check_preemption_disabled+0x48/0x280
[  311.234041]  ? __lock_is_held+0xb5/0x140
[  311.238097]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.243629]  ? check_preemption_disabled+0x48/0x280
[  311.248667]  run_timer_softirq+0x52/0xb0
[  311.252733]  ? rcu_read_lock_sched_held+0x14f/0x180
[  311.257772]  __do_softirq+0x308/0xb7e
[  311.261571]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  311.266060]  ? lock_downgrade+0x900/0x900
[  311.270214]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  311.275320]  ? pvclock_read_flags+0x160/0x160
[  311.279812]  ? lapic_next_event+0x5a/0x90
[  311.283958]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.289499]  ? kvm_clock_read+0x18/0x30
[  311.293476]  ? kvm_sched_clock_read+0x9/0x20
[  311.297889]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.303424]  ? check_preemption_disabled+0x48/0x280
[  311.308443]  irq_exit+0x17f/0x1c0
[  311.311915]  smp_apic_timer_interrupt+0x1cb/0x760
[  311.316754]  ? smp_reschedule_interrupt+0x109/0x650
[  311.321764]  ? smp_call_function_single_interrupt+0x650/0x650
[  311.327637]  ? interrupt_entry+0xb5/0xc0
[  311.331708]  ? trace_hardirqs_off_caller+0xbb/0x310
[  311.336717]  ? trace_hardirqs_off_caller+0xbb/0x310
[  311.341727]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  311.346569]  ? trace_hardirqs_on_caller+0x310/0x310
[  311.351621]  ? trace_hardirqs_on_caller+0x310/0x310
[  311.356635]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  311.361475]  apic_timer_interrupt+0xf/0x20
[  311.365707]  </IRQ>
[  311.367951] RIP: 0010:dump_stack+0x358/0x39d
[  311.372453] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  311.391345] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  311.399061] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  311.406341] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  311.413617] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  311.420890] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  311.428150] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  311.435438]  ? dump_stack+0x34f/0x39d
[  311.439250]  ? dump_stack_print_info.cold.1+0x20/0x20
[  311.444436]  ? mark_held_locks+0x130/0x130
[  311.448688]  ? mark_held_locks+0x130/0x130
[  311.452920]  dump_header+0x27b/0xf72
[  311.456652]  ? pagefault_out_of_memory+0x197/0x197
[  311.461592]  ? __lock_acquire+0x62f/0x4c20
[  311.465819]  ? percpu_ref_get_many+0x240/0x240
[  311.470411]  ? print_usage_bug+0xc0/0xc0
[  311.474474]  ? zap_class+0x640/0x640
[  311.478187]  ? print_usage_bug+0xc0/0xc0
[  311.482239]  ? print_usage_bug+0xc0/0xc0
[  311.486297]  ? zap_class+0x640/0x640
[  311.490023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.495575]  ? find_held_lock+0x36/0x1c0
[  311.499667]  ? mark_held_locks+0xc7/0x130
[  311.503854]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  311.508989]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  311.514088]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  311.518696]  ? trace_hardirqs_on+0xbd/0x310
[  311.523019]  ? kasan_check_read+0x11/0x20
[  311.527162]  ? ___ratelimit+0x3b4/0x672
[  311.531128]  ? trace_hardirqs_off_caller+0x310/0x310
[  311.536225]  ? trace_hardirqs_on+0x310/0x310
[  311.540666]  ? lock_downgrade+0x900/0x900
[  311.544814]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  311.549915]  ? ___ratelimit+0x3b9/0x672
[  311.553888]  ? idr_get_free+0xf70/0xf70
[  311.557854]  ? find_held_lock+0x36/0x1c0
[  311.561927]  oom_kill_process.cold.27+0x10/0x903
[  311.566692]  ? zap_class+0x640/0x640
[  311.570399]  ? check_preemption_disabled+0x48/0x280
[  311.575435]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  311.580372]  ? kasan_check_read+0x11/0x20
[  311.584545]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.589817]  ? oom_evaluate_task+0x540/0x540
[  311.594222]  ? find_held_lock+0x36/0x1c0
[  311.598284]  ? out_of_memory+0x974/0x1430
[  311.602430]  ? lock_downgrade+0x900/0x900
[  311.606576]  ? check_preemption_disabled+0x48/0x280
[  311.611594]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  311.616538]  ? kasan_check_read+0x11/0x20
[  311.620707]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.626011]  ? rcu_softirq_qs+0x20/0x20
[  311.629987]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.635534]  ? oom_evaluate_task+0x302/0x540
[  311.639944]  out_of_memory+0xa84/0x1430
[  311.643930]  ? oom_killer_disable+0x3a0/0x3a0
[  311.648425]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  311.653379]  ? __ww_mutex_check_waiters+0x160/0x160
[  311.658405]  __alloc_pages_slowpath+0x2354/0x2e10
[  311.663285]  ? warn_alloc+0x120/0x120
[  311.667079]  ? mark_held_locks+0x130/0x130
[  311.671358]  ? find_get_entry+0xaae/0x1120
[  311.675599]  ? filemap_map_pages+0x1a20/0x1a20
[  311.680181]  ? zap_class+0x640/0x640
[  311.683905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.689460]  ? check_preemption_disabled+0x48/0x280
[  311.694493]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.700027]  ? should_fail+0x22d/0xd01
[  311.703923]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  311.709022]  ? zap_class+0x640/0x640
[  311.712756]  ? __lock_is_held+0xb5/0x140
[  311.716823]  ? mark_held_locks+0x130/0x130
[  311.721072]  ? lock_release+0xa00/0xa00
[  311.725049]  ? perf_trace_sched_process_exec+0x860/0x860
[  311.730506]  ? xa_load+0x2ba/0x460
[  311.734048]  ? lock_downgrade+0x900/0x900
[  311.738199]  ? __might_sleep+0x95/0x190
[  311.742333]  __alloc_pages_nodemask+0xa80/0xde0
[  311.747024]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  311.752045]  ? __page_cache_alloc+0x191/0x5c0
[  311.756539]  ? xa_load+0x2e1/0x460
[  311.760079]  ? xa_clear_mark+0x40/0x40
[  311.763973]  ? zap_class+0x640/0x640
[  311.767698]  ? zap_class+0x640/0x640
[  311.771427]  ? zap_class+0x640/0x640
[  311.775158]  ? __do_page_cache_readahead+0x663/0x810
[  311.780266]  ? find_held_lock+0x36/0x1c0
[  311.784334]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  311.789904]  alloc_pages_current+0x173/0x350
[  311.794324]  __page_cache_alloc+0x38c/0x5c0
[  311.798658]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  311.803591]  ? kasan_check_read+0x11/0x20
[  311.807737]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.813021]  ? generic_perform_write+0x6a0/0x6a0
[  311.817783]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.823326]  ? check_preemption_disabled+0x48/0x280
[  311.828351]  filemap_fault+0x1595/0x25f0
[  311.832424]  ? __lock_page_or_retry+0xa00/0xa00
[  311.837112]  ? mark_held_locks+0x130/0x130
[  311.841358]  ? filemap_map_pages+0xd6b/0x1a20
[  311.845855]  ? lock_downgrade+0x900/0x900
[  311.850005]  ? check_preemption_disabled+0x48/0x280
[  311.855019]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  311.859970]  ? kasan_check_read+0x11/0x20
[  311.864111]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.869382]  ? rcu_softirq_qs+0x20/0x20
[  311.873738]  ? filemap_map_pages+0xd92/0x1a20
[  311.878234]  ? print_usage_bug+0xc0/0xc0
[  311.882324]  ? find_get_entries_tag+0x1400/0x1400
[  311.887159]  ? __kasan_slab_free+0x102/0x150
[  311.891560]  ? kasan_slab_free+0xe/0x10
[  311.895524]  ? kmem_cache_free+0x83/0x290
[  311.899701]  ? __sigqueue_free.part.29+0x74/0x90
[  311.904483]  ? lock_acquire+0x1ed/0x520
[  311.908474]  ? ext4_filemap_fault+0x7a/0xad
[  311.912810]  ? lock_release+0xa00/0xa00
[  311.916778]  ? perf_trace_sched_process_exec+0x860/0x860
[  311.922232]  ? print_usage_bug+0xc0/0xc0
[  311.926290]  ? print_usage_bug+0xc0/0xc0
[  311.930406]  ? down_read+0x8d/0x120
[  311.934037]  ? ext4_filemap_fault+0x7a/0xad
[  311.938360]  ? __down_interruptible+0x700/0x700
[  311.943036]  ext4_filemap_fault+0x82/0xad
[  311.947211]  __do_fault+0x100/0x6b0
[  311.950845]  ? pmd_devmap_trans_unstable+0x220/0x220
[  311.955950]  ? mark_held_locks+0x130/0x130
[  311.960214]  ? mark_held_locks+0x130/0x130
[  311.964456]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  311.970005]  ? rcu_pm_notify+0xc0/0xc0
[  311.973906]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.979451]  __handle_mm_fault+0x3ea0/0x5be0
[  311.983877]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  311.988721]  ? _raw_spin_unlock_irq+0x27/0x80
[  311.993216]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  311.997800]  ? trace_hardirqs_on+0xbd/0x310
[  312.002120]  ? kasan_check_read+0x11/0x20
[  312.006267]  ? __set_current_blocked+0xdf/0x120
[  312.010951]  ? trace_hardirqs_off_caller+0x310/0x310
[  312.016075]  ? zap_class+0x640/0x640
[  312.019786]  ? zap_class+0x640/0x640
[  312.023502]  ? find_held_lock+0x36/0x1c0
[  312.027572]  ? handle_mm_fault+0x42a/0xc70
[  312.031807]  ? lock_downgrade+0x900/0x900
[  312.035953]  ? check_preemption_disabled+0x48/0x280
[  312.040988]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  312.045929]  ? kasan_check_read+0x11/0x20
[  312.050074]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.055361]  ? rcu_softirq_qs+0x20/0x20
[  312.059330]  ? trace_hardirqs_off_caller+0x310/0x310
[  312.064431]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.069966]  ? check_preemption_disabled+0x48/0x280
[  312.075000]  handle_mm_fault+0x54f/0xc70
[  312.079087]  ? __handle_mm_fault+0x5be0/0x5be0
[  312.083670]  ? find_vma+0x34/0x190
[  312.087220]  __do_page_fault+0x5e8/0xe60
[  312.091278]  ? exit_to_usermode_loop+0x1f4/0x380
[  312.096039]  do_page_fault+0xf2/0x7e0
[  312.099834]  ? vmalloc_sync_all+0x30/0x30
[  312.103974]  ? error_entry+0x70/0xd0
[  312.107689]  ? trace_hardirqs_off_caller+0xbb/0x310
[  312.112699]  ? trace_hardirqs_on_caller+0xc0/0x310
[  312.117622]  ? syscall_return_slowpath+0x5e0/0x5e0
[  312.122584]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  312.127437]  ? trace_hardirqs_on_caller+0x310/0x310
[  312.132495]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  312.137941]  ? prepare_exit_to_usermode+0x291/0x3b0
[  312.142952]  ? page_fault+0x8/0x30
[  312.146489]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  312.151327]  ? page_fault+0x8/0x30
[  312.154863]  page_fault+0x1e/0x30
[  312.158331] RIP: 0033:0x45db60
[  312.161524] Code: Bad RIP value.
[  312.164887] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  312.170244] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  312.177510] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  312.184788] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  312.192053] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  312.199319] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  312.206604] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  312.206609] warn_alloc_show_mem: 1 callbacks suppressed
[  312.206616] Mem-Info:
[  312.213893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  312.219380] active_anon:54051 inactive_anon:192 isolated_anon:0
[  312.219380]  active_file:9 inactive_file:20 isolated_file:0
[  312.219380]  unevictable:0 dirty:0 writeback:0 unstable:0
[  312.219380]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  312.219380]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  312.219380]  free:13735 free_pcp:540 free_cma:0
[  312.221749] Call Trace:
[  312.231131] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  312.263890]  <IRQ>
[  312.266470] 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
[  312.293892]  dump_stack+0x244/0x39d
[  312.296013] lowmem_reserve[]: 0 2818 6321 6321
[  312.322116]  ? dump_stack_print_info.cold.1+0x20/0x20
[  312.325712] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  312.330304]  warn_alloc.cold.116+0xb7/0x1bd
[  312.335475] lowmem_reserve[]: 0 0 3503 3503
[  312.363238]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  312.367534] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  312.371840]  ? lock_downgrade+0x900/0x900
[  312.376650] lowmem_reserve[]: 0 0 0 0
[  312.405724]  ? trace_hardirqs_off+0xb8/0x310
[  312.409863] 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
[  312.413657]  ? trace_hardirqs_off+0xb8/0x310
[  312.418036] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  312.431574]  __alloc_pages_slowpath+0x26e8/0x2e10
[  312.435950] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  312.451229]  ? warn_alloc+0x120/0x120
[  312.456028] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  312.470141]  ? print_usage_bug+0xc0/0xc0
[  312.473917] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  312.482747]  ? warn_alloc+0x120/0x120
[  312.486778] 273 total pagecache pages
[  312.495336]  ? warn_alloc+0x120/0x120
[  312.499114] 0 pages in swap cache
[  312.502898]  ? print_usage_bug+0xc0/0xc0
[  312.506672] Swap cache stats: add 0, delete 0, find 0/0
[  312.510110]  ? kvm_clock_read+0x18/0x30
[  312.514140] Free swap  = 0kB
[  312.519489]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  312.523434] Total swap = 0kB
[  312.526439]  ? print_usage_bug+0xc0/0xc0
[  312.531455] 1965979 pages RAM
[  312.534489]  ? __lock_acquire+0x62f/0x4c20
[  312.538522] 0 pages HighMem/MovableOnly
[  312.541613]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.545816] 342853 pages reserved
[  312.549817]  ? should_fail+0x22d/0xd01
[  312.555375] 0 pages cma reserved
[  312.558859]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.562773] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  312.566068]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  312.571400] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  312.577828]  ? __lock_acquire+0x62f/0x4c20
[  312.582916] syz-fuzzer cpuset=/ mems_allowed=0
[  312.593149]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  312.607022]  ? __lock_acquire+0x62f/0x4c20
[  312.611270]  ? should_fail+0x22d/0xd01
[  312.615152]  ? rcu_irq_exit+0x1a2/0x390
[  312.619142]  ? mark_held_locks+0x130/0x130
[  312.623401]  ? mark_held_locks+0x130/0x130
[  312.627639]  ? mark_held_locks+0xc7/0x130
[  312.631784]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  312.636802]  ? zap_class+0x640/0x640
[  312.640516]  ? print_usage_bug+0xc0/0xc0
[  312.644579]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.650118]  ? check_preemption_disabled+0x48/0x280
[  312.655143]  ? __lock_is_held+0xb5/0x140
[  312.659216]  __alloc_pages_nodemask+0xa80/0xde0
[  312.663895]  ? zap_class+0x640/0x640
[  312.667618]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  312.672645]  ? find_held_lock+0x36/0x1c0
[  312.676713]  ? ____cache_alloc_node+0x1c7/0x1e0
[  312.681388]  ? lock_downgrade+0x900/0x900
[  312.685541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.691081]  cache_grow_begin+0xa5/0x8c0
[  312.695142]  ? do_raw_spin_unlock+0xa7/0x330
[  312.699556]  fallback_alloc+0x204/0x2e0
[  312.703541]  ____cache_alloc_node+0x1c7/0x1e0
[  312.708045]  kmem_cache_alloc_node+0xe3/0x730
[  312.712537]  ? ipv6_get_ifaddr+0x42e/0x620
[  312.716802]  __alloc_skb+0x119/0x770
[  312.720510]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.725788]  ? netdev_alloc_frag+0x1f0/0x1f0
[  312.730197]  ? lock_downgrade+0x900/0x900
[  312.734348]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.739891]  ? refcount_sub_and_test_checked+0x203/0x310
[  312.745498]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  312.750946]  ? addrconf_rs_timer+0x690/0x690
[  312.755391]  ndisc_alloc_skb+0x144/0x340
[  312.759457]  ndisc_send_rs+0x331/0x6e0
[  312.763384]  addrconf_rs_timer+0x314/0x690
[  312.767620]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.771861]  call_timer_fn+0x272/0x920
[  312.775751]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.779982]  ? process_timeout+0x40/0x40
[  312.784047]  ? __run_timers+0x7da/0xc70
[  312.788017]  ? _raw_spin_unlock_irq+0x27/0x80
[  312.792561]  ? _raw_spin_unlock_irq+0x27/0x80
[  312.797084]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.801335]  ? lockdep_hardirqs_on+0x296/0x5b0
[  312.805920]  ? trace_hardirqs_on+0xbd/0x310
[  312.810242]  ? kasan_check_read+0x11/0x20
[  312.814380]  ? __run_timers+0x7da/0xc70
[  312.818370]  ? trace_hardirqs_off_caller+0x310/0x310
[  312.823536]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.827790]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.832025]  __run_timers+0x7e5/0xc70
[  312.835850]  ? timer_fixup_init+0x70/0x70
[  312.840021]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  312.845031]  ? zap_class+0x640/0x640
[  312.848741]  ? enqueue_hrtimer+0x1a5/0x560
[  312.852973]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  312.858166]  ? find_held_lock+0x36/0x1c0
[  312.862237]  ? zap_class+0x640/0x640
[  312.866066]  ? pvclock_read_flags+0x160/0x160
[  312.870564]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.876097]  ? check_preemption_disabled+0x48/0x280
[  312.881118]  ? __lock_is_held+0xb5/0x140
[  312.885185]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.890724]  ? check_preemption_disabled+0x48/0x280
[  312.895745]  run_timer_softirq+0x52/0xb0
[  312.899805]  ? rcu_read_lock_sched_held+0x14f/0x180
[  312.904826]  __do_softirq+0x308/0xb7e
[  312.908627]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  312.913116]  ? lock_downgrade+0x900/0x900
[  312.917262]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  312.922386]  ? pvclock_read_flags+0x160/0x160
[  312.926879]  ? lapic_next_event+0x5a/0x90
[  312.931036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.936570]  ? kvm_clock_read+0x18/0x30
[  312.940537]  ? kvm_sched_clock_read+0x9/0x20
[  312.944976]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.950511]  ? check_preemption_disabled+0x48/0x280
[  312.955531]  irq_exit+0x17f/0x1c0
[  312.958982]  smp_apic_timer_interrupt+0x1cb/0x760
[  312.963822]  ? smp_reschedule_interrupt+0x109/0x650
[  312.968834]  ? smp_call_function_single_interrupt+0x650/0x650
[  312.974724]  ? interrupt_entry+0xb5/0xc0
[  312.978779]  ? trace_hardirqs_off_caller+0xbb/0x310
[  312.983783]  ? trace_hardirqs_off_caller+0xbb/0x310
[  312.988833]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  312.993702]  ? trace_hardirqs_on_caller+0x310/0x310
[  312.998709]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.003730]  ? task_prio+0x50/0x50
[  313.007310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.012844]  ? check_preemption_disabled+0x48/0x280
[  313.017859]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.022718]  apic_timer_interrupt+0xf/0x20
[  313.026935]  </IRQ>
[  313.029166] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  313.034089] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  313.052995] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  313.060695] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  313.067956] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  313.075230] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  313.082489] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  313.089751] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  313.097041]  skb_clone+0x1bb/0x500
[  313.100623]  ? finish_task_switch+0x2f4/0x910
[  313.105115]  ? skb_split+0x11e0/0x11e0
[  313.109051]  ? preempt_notifier_register+0x200/0x200
[  313.114149]  ? __switch_to_asm+0x34/0x70
[  313.118210]  ? __switch_to_asm+0x34/0x70
[  313.122317]  ? __switch_to_asm+0x40/0x70
[  313.126389]  ? __switch_to_asm+0x34/0x70
[  313.130462]  ? __switch_to_asm+0x40/0x70
[  313.134533]  ? __switch_to_asm+0x34/0x70
[  313.138619]  ? __switch_to_asm+0x40/0x70
[  313.142691]  ? __switch_to_asm+0x34/0x70
[  313.146749]  ? __switch_to_asm+0x34/0x70
[  313.150823]  ? __switch_to_asm+0x40/0x70
[  313.154881]  ? __switch_to_asm+0x34/0x70
[  313.158961]  bpf_clone_redirect+0xb9/0x490
[  313.163204]  ? __schedule+0x8d7/0x21d0
[  313.167098]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  313.172219]  ? __sched_text_start+0x8/0x8
[  313.176368]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  313.181158]  ? find_held_lock+0x36/0x1c0
[  313.185231]  ? lock_acquire+0x1ed/0x520
[  313.189212]  ? bpf_test_run+0x3cb/0x780
[  313.193191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.198734]  ? check_preemption_disabled+0x48/0x280
[  313.203760]  ? kasan_check_read+0x11/0x20
[  313.207913]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.213196]  ? rcu_softirq_qs+0x20/0x20
[  313.217172]  ? preempt_schedule+0x4d/0x60
[  313.221330]  ? ___preempt_schedule+0x16/0x18
[  313.225762]  ? bpf_test_run+0x25d/0x780
[  313.229747]  ? netlink_diag_dump+0x2a0/0x2a0
[  313.234157]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  313.239699]  ? bpf_test_init.isra.10+0x70/0x100
[  313.244376]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  313.249141]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  313.253983]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  313.259519]  ? fput+0x130/0x1a0
[  313.262813]  ? __bpf_prog_get+0x9b/0x290
[  313.266878]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  313.271740]  ? bpf_prog_test_run+0x130/0x1a0
[  313.276151]  ? __x64_sys_bpf+0x3d8/0x520
[  313.280215]  ? bpf_prog_get+0x20/0x20
[  313.284035]  ? do_syscall_64+0x1b9/0x820
[  313.288094]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  313.293478]  ? syscall_return_slowpath+0x5e0/0x5e0
[  313.298427]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.303443]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  313.308461]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  313.315123]  ? __switch_to_asm+0x40/0x70
[  313.319186]  ? __switch_to_asm+0x34/0x70
[  313.323250]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.328123]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  313.333513] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  313.333590] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  313.340546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  313.340554] Call Trace:
[  313.347137] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  313.356399]  <IRQ>
[  313.358996] syz-executor3 cpuset=syz3 mems_allowed=0
[  313.369474]  dump_stack+0x244/0x39d
[  313.380308]  ? dump_stack_print_info.cold.1+0x20/0x20
[  313.385500]  warn_alloc.cold.116+0xb7/0x1bd
[  313.389820]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  313.394704]  ? lock_downgrade+0x900/0x900
[  313.398851]  ? trace_hardirqs_off+0xb8/0x310
[  313.403287]  ? trace_hardirqs_off+0xb8/0x310
[  313.407705]  __alloc_pages_slowpath+0x26e8/0x2e10
[  313.412606]  ? warn_alloc+0x120/0x120
[  313.416416]  ? print_usage_bug+0xc0/0xc0
[  313.420468]  ? warn_alloc+0x120/0x120
[  313.424277]  ? warn_alloc+0x120/0x120
[  313.428070]  ? print_usage_bug+0xc0/0xc0
[  313.432126]  ? print_usage_bug+0xc0/0xc0
[  313.436181]  ? __lock_acquire+0x62f/0x4c20
[  313.440429]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  313.445960]  ? should_fail+0x22d/0xd01
[  313.449841]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  313.454956]  ? __lock_acquire+0x62f/0x4c20
[  313.459203]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  313.464311]  ? __lock_acquire+0x62f/0x4c20
[  313.468541]  ? should_fail+0x22d/0xd01
[  313.472430]  ? find_held_lock+0x36/0x1c0
[  313.476514]  ? mark_held_locks+0x130/0x130
[  313.480769]  ? mark_held_locks+0x130/0x130
[  313.485003]  ? zap_class+0x640/0x640
[  313.488719]  ? zap_class+0x640/0x640
[  313.492433]  ? print_usage_bug+0xc0/0xc0
[  313.496518]  ? do_raw_spin_unlock+0xa7/0x330
[  313.500925]  ? zap_class+0x640/0x640
[  313.504642]  ? print_usage_bug+0xc0/0xc0
[  313.508712]  ? wq_watchdog_touch+0x9c/0xfe
[  313.512953]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.518488]  ? check_preemption_disabled+0x48/0x280
[  313.523513]  ? __lock_is_held+0xb5/0x140
[  313.527576]  __alloc_pages_nodemask+0xa80/0xde0
[  313.532238]  ? zap_class+0x640/0x640
[  313.535957]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  313.540977]  ? find_held_lock+0x36/0x1c0
[  313.545044]  ? ____cache_alloc_node+0x1c7/0x1e0
[  313.549728]  ? lock_downgrade+0x900/0x900
[  313.553879]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.559424]  cache_grow_begin+0xa5/0x8c0
[  313.563485]  ? do_raw_spin_unlock+0xa7/0x330
[  313.567902]  fallback_alloc+0x204/0x2e0
[  313.571911]  ____cache_alloc_node+0x1c7/0x1e0
[  313.576424]  kmem_cache_alloc_node+0xe3/0x730
[  313.580957]  ? ipv6_get_ifaddr+0x42e/0x620
[  313.585197]  __alloc_skb+0x119/0x770
[  313.588924]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.594203]  ? netdev_alloc_frag+0x1f0/0x1f0
[  313.598629]  ? lock_downgrade+0x900/0x900
[  313.602779]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.608316]  ? refcount_sub_and_test_checked+0x203/0x310
[  313.613813]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  313.619265]  ? addrconf_rs_timer+0x690/0x690
[  313.623692]  ndisc_alloc_skb+0x144/0x340
[  313.627757]  ndisc_send_rs+0x331/0x6e0
[  313.631649]  addrconf_rs_timer+0x314/0x690
[  313.635899]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.640144]  call_timer_fn+0x272/0x920
[  313.644034]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.648268]  ? process_timeout+0x40/0x40
[  313.652355]  ? mark_held_locks+0xc7/0x130
[  313.656507]  ? _raw_spin_unlock_irq+0x27/0x80
[  313.660999]  ? _raw_spin_unlock_irq+0x27/0x80
[  313.665494]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.669742]  ? lockdep_hardirqs_on+0x296/0x5b0
[  313.674325]  ? trace_hardirqs_on+0xbd/0x310
[  313.678643]  ? kasan_check_read+0x11/0x20
[  313.682787]  ? __run_timers+0x7da/0xc70
[  313.686763]  ? trace_hardirqs_off_caller+0x310/0x310
[  313.691870]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.696115]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.700348]  __run_timers+0x7e5/0xc70
[  313.704156]  ? timer_fixup_init+0x70/0x70
[  313.708304]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  313.713340]  ? zap_class+0x640/0x640
[  313.717056]  ? print_usage_bug+0xc0/0xc0
[  313.721119]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  313.726313]  ? find_held_lock+0x36/0x1c0
[  313.730393]  ? zap_class+0x640/0x640
[  313.734115]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.739660]  ? check_preemption_disabled+0x48/0x280
[  313.744810]  ? __lock_is_held+0xb5/0x140
[  313.748879]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.754444]  ? check_preemption_disabled+0x48/0x280
[  313.759474]  run_timer_softirq+0x52/0xb0
[  313.763530]  ? rcu_read_lock_sched_held+0x14f/0x180
[  313.768559]  __do_softirq+0x308/0xb7e
[  313.772358]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  313.776851]  ? lock_downgrade+0x900/0x900
[  313.781007]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  313.786136]  ? pvclock_read_flags+0x160/0x160
[  313.790634]  ? lapic_next_event+0x5a/0x90
[  313.794786]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.800371]  ? kvm_clock_read+0x18/0x30
[  313.804361]  ? kvm_sched_clock_read+0x9/0x20
[  313.808770]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  313.814305]  ? check_preemption_disabled+0x48/0x280
[  313.819332]  irq_exit+0x17f/0x1c0
[  313.822801]  smp_apic_timer_interrupt+0x1cb/0x760
[  313.827655]  ? smp_reschedule_interrupt+0x109/0x650
[  313.832694]  ? smp_call_function_single_interrupt+0x650/0x650
[  313.838575]  ? interrupt_entry+0xb5/0xc0
[  313.842639]  ? trace_hardirqs_off_caller+0xbb/0x310
[  313.847652]  ? trace_hardirqs_off_caller+0xbb/0x310
[  313.852673]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.857525]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.862539]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.867564]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.872411]  apic_timer_interrupt+0xf/0x20
[  313.877121]  </IRQ>
[  313.879358] RIP: 0010:dump_stack+0x358/0x39d
[  313.883774] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  313.902667] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  313.910416] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  313.917681] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  313.924944] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  313.932899] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  313.940162] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  313.947437]  ? dump_stack+0x34f/0x39d
[  313.951268]  ? dump_stack_print_info.cold.1+0x20/0x20
[  313.956480]  ? mark_held_locks+0x130/0x130
[  313.960718]  ? mark_held_locks+0x130/0x130
[  313.964955]  dump_header+0x27b/0xf72
[  313.968687]  ? pagefault_out_of_memory+0x197/0x197
[  313.973626]  ? __lock_acquire+0x62f/0x4c20
[  313.977890]  ? percpu_ref_get_many+0x240/0x240
[  313.982469]  ? print_usage_bug+0xc0/0xc0
[  313.986561]  ? zap_class+0x640/0x640
[  313.990265]  ? print_usage_bug+0xc0/0xc0
[  313.994316]  ? print_usage_bug+0xc0/0xc0
[  313.998370]  ? zap_class+0x640/0x640
[  314.002079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.007609]  ? find_held_lock+0x36/0x1c0
[  314.011669]  ? mark_held_locks+0xc7/0x130
[  314.015835]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  314.020943]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  314.026053]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  314.030656]  ? trace_hardirqs_on+0xbd/0x310
[  314.034974]  ? kasan_check_read+0x11/0x20
[  314.039115]  ? ___ratelimit+0x3b4/0x672
[  314.043084]  ? trace_hardirqs_off_caller+0x310/0x310
[  314.048252]  ? trace_hardirqs_on+0x310/0x310
[  314.052654]  ? lock_downgrade+0x900/0x900
[  314.056800]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  314.061905]  ? ___ratelimit+0x3b9/0x672
[  314.065877]  ? idr_get_free+0xf70/0xf70
[  314.069871]  ? find_held_lock+0x36/0x1c0
[  314.073959]  oom_kill_process.cold.27+0x10/0x903
[  314.078736]  ? zap_class+0x640/0x640
[  314.082521]  ? check_preemption_disabled+0x48/0x280
[  314.087565]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.092491]  ? kasan_check_read+0x11/0x20
[  314.096633]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.101919]  ? oom_evaluate_task+0x540/0x540
[  314.106342]  ? find_held_lock+0x36/0x1c0
[  314.110454]  ? out_of_memory+0x974/0x1430
[  314.114615]  ? lock_downgrade+0x900/0x900
[  314.118758]  ? check_preemption_disabled+0x48/0x280
[  314.123778]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.128712]  ? kasan_check_read+0x11/0x20
[  314.132894]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.138183]  ? rcu_softirq_qs+0x20/0x20
[  314.142188]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.147717]  ? oom_evaluate_task+0x302/0x540
[  314.152122]  out_of_memory+0xa84/0x1430
[  314.156099]  ? oom_killer_disable+0x3a0/0x3a0
[  314.160608]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  314.165537]  ? __ww_mutex_check_waiters+0x160/0x160
[  314.170554]  __alloc_pages_slowpath+0x2354/0x2e10
[  314.175429]  ? warn_alloc+0x120/0x120
[  314.179240]  ? mark_held_locks+0x130/0x130
[  314.183511]  ? find_get_entry+0xaae/0x1120
[  314.187749]  ? filemap_map_pages+0x1a20/0x1a20
[  314.192344]  ? zap_class+0x640/0x640
[  314.196057]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.201586]  ? check_preemption_disabled+0x48/0x280
[  314.206596]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.212125]  ? should_fail+0x22d/0xd01
[  314.216010]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  314.221117]  ? zap_class+0x640/0x640
[  314.224848]  ? __lock_is_held+0xb5/0x140
[  314.228926]  ? mark_held_locks+0x130/0x130
[  314.233161]  ? lock_release+0xa00/0xa00
[  314.237135]  ? perf_trace_sched_process_exec+0x860/0x860
[  314.242610]  ? xa_load+0x2ba/0x460
[  314.246147]  ? lock_downgrade+0x900/0x900
[  314.250305]  ? __might_sleep+0x95/0x190
[  314.254279]  __alloc_pages_nodemask+0xa80/0xde0
[  314.258962]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  314.264021]  ? __page_cache_alloc+0x191/0x5c0
[  314.268541]  ? xa_load+0x2e1/0x460
[  314.272074]  ? xa_clear_mark+0x40/0x40
[  314.275954]  ? zap_class+0x640/0x640
[  314.279663]  ? zap_class+0x640/0x640
[  314.283374]  ? zap_class+0x640/0x640
[  314.287094]  ? __do_page_cache_readahead+0x663/0x810
[  314.292194]  ? find_held_lock+0x36/0x1c0
[  314.296282]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  314.301820]  alloc_pages_current+0x173/0x350
[  314.306234]  __page_cache_alloc+0x38c/0x5c0
[  314.310561]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.315513]  ? kasan_check_read+0x11/0x20
[  314.319664]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.324951]  ? generic_perform_write+0x6a0/0x6a0
[  314.329744]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.335287]  ? check_preemption_disabled+0x48/0x280
[  314.340303]  filemap_fault+0x1595/0x25f0
[  314.344395]  ? __lock_page_or_retry+0xa00/0xa00
[  314.349057]  ? mark_held_locks+0x130/0x130
[  314.353311]  ? filemap_map_pages+0xd6b/0x1a20
[  314.357798]  ? lock_downgrade+0x900/0x900
[  314.361941]  ? check_preemption_disabled+0x48/0x280
[  314.366952]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.371920]  ? kasan_check_read+0x11/0x20
[  314.376058]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.381325]  ? rcu_softirq_qs+0x20/0x20
[  314.385319]  ? filemap_map_pages+0xd92/0x1a20
[  314.389809]  ? print_usage_bug+0xc0/0xc0
[  314.393871]  ? find_get_entries_tag+0x1400/0x1400
[  314.398730]  ? __kasan_slab_free+0x102/0x150
[  314.403130]  ? kasan_slab_free+0xe/0x10
[  314.407123]  ? kmem_cache_free+0x83/0x290
[  314.411281]  ? __sigqueue_free.part.29+0x74/0x90
[  314.416045]  ? lock_acquire+0x1ed/0x520
[  314.420012]  ? ext4_filemap_fault+0x7a/0xad
[  314.424335]  ? lock_release+0xa00/0xa00
[  314.428314]  ? perf_trace_sched_process_exec+0x860/0x860
[  314.433756]  ? print_usage_bug+0xc0/0xc0
[  314.437823]  ? print_usage_bug+0xc0/0xc0
[  314.441882]  ? down_read+0x8d/0x120
[  314.445520]  ? ext4_filemap_fault+0x7a/0xad
[  314.449832]  ? __down_interruptible+0x700/0x700
[  314.454517]  ext4_filemap_fault+0x82/0xad
[  314.458712]  __do_fault+0x100/0x6b0
[  314.462336]  ? pmd_devmap_trans_unstable+0x220/0x220
[  314.467434]  ? mark_held_locks+0x130/0x130
[  314.471672]  ? mark_held_locks+0x130/0x130
[  314.475929]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  314.481465]  ? rcu_pm_notify+0xc0/0xc0
[  314.485348]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.490919]  __handle_mm_fault+0x3ea0/0x5be0
[  314.495366]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  314.500203]  ? _raw_spin_unlock_irq+0x27/0x80
[  314.504721]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  314.509303]  ? trace_hardirqs_on+0xbd/0x310
[  314.513613]  ? kasan_check_read+0x11/0x20
[  314.517753]  ? __set_current_blocked+0xdf/0x120
[  314.522412]  ? trace_hardirqs_off_caller+0x310/0x310
[  314.527543]  ? zap_class+0x640/0x640
[  314.531247]  ? zap_class+0x640/0x640
[  314.534970]  ? find_held_lock+0x36/0x1c0
[  314.539028]  ? handle_mm_fault+0x42a/0xc70
[  314.543275]  ? lock_downgrade+0x900/0x900
[  314.547434]  ? check_preemption_disabled+0x48/0x280
[  314.552454]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.557409]  ? kasan_check_read+0x11/0x20
[  314.561547]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.566827]  ? rcu_softirq_qs+0x20/0x20
[  314.570796]  ? trace_hardirqs_off_caller+0x310/0x310
[  314.575915]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.581487]  ? check_preemption_disabled+0x48/0x280
[  314.586496]  handle_mm_fault+0x54f/0xc70
[  314.590551]  ? __handle_mm_fault+0x5be0/0x5be0
[  314.595158]  ? find_vma+0x34/0x190
[  314.598748]  __do_page_fault+0x5e8/0xe60
[  314.602820]  ? exit_to_usermode_loop+0x1f4/0x380
[  314.607584]  do_page_fault+0xf2/0x7e0
[  314.611382]  ? vmalloc_sync_all+0x30/0x30
[  314.615530]  ? error_entry+0x70/0xd0
[  314.619303]  ? trace_hardirqs_off_caller+0xbb/0x310
[  314.624329]  ? trace_hardirqs_on_caller+0xc0/0x310
[  314.629275]  ? syscall_return_slowpath+0x5e0/0x5e0
[  314.634223]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  314.639069]  ? trace_hardirqs_on_caller+0x310/0x310
[  314.644087]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  314.649555]  ? prepare_exit_to_usermode+0x291/0x3b0
[  314.654569]  ? page_fault+0x8/0x30
[  314.658109]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  314.662957]  ? page_fault+0x8/0x30
[  314.666496]  page_fault+0x1e/0x30
[  314.669950] RIP: 0033:0x45db60
[  314.673153] Code: Bad RIP value.
[  314.676515] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  314.681890] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  314.689157] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  314.696430] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  314.703701] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  314.710965] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  314.718330] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  314.718335] warn_alloc_show_mem: 1 callbacks suppressed
[  314.718353] Mem-Info:
[  314.725622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  314.730985] active_anon:54051 inactive_anon:192 isolated_anon:0
[  314.730985]  active_file:9 inactive_file:20 isolated_file:0
[  314.730985]  unevictable:0 dirty:0 writeback:0 unstable:0
[  314.730985]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  314.730985]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  314.730985]  free:13735 free_pcp:540 free_cma:0
[  314.733358] Call Trace:
[  314.742754] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  314.775523]  <IRQ>
[  314.778086] 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
[  314.805483]  dump_stack+0x244/0x39d
[  314.807622] lowmem_reserve[]: 0 2818 6321 6321
[  314.833720]  ? dump_stack_print_info.cold.1+0x20/0x20
[  314.837329] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  314.841915]  warn_alloc.cold.116+0xb7/0x1bd
[  314.847073] lowmem_reserve[]: 0 0 3503 3503
[  314.874825]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  314.879117] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  314.883458]  ? lock_downgrade+0x900/0x900
[  314.888288] lowmem_reserve[]: 0 0 0 0
[  314.917344]  ? trace_hardirqs_off+0xb8/0x310
[  314.921459] 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
[  314.925250]  ? trace_hardirqs_off+0xb8/0x310
[  314.929628] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  314.943143]  __alloc_pages_slowpath+0x26e8/0x2e10
[  314.947519] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  314.962798]  ? warn_alloc+0x120/0x120
[  314.967600] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  314.981715]  ? print_usage_bug+0xc0/0xc0
[  314.985492] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  314.994324]  ? warn_alloc+0x120/0x120
[  314.998387] 273 total pagecache pages
[  315.006964]  ? warn_alloc+0x120/0x120
[  315.010745] 0 pages in swap cache
[  315.014528]  ? print_usage_bug+0xc0/0xc0
[  315.018306] Swap cache stats: add 0, delete 0, find 0/0
[  315.021748]  ? kvm_clock_read+0x18/0x30
[  315.025783] Free swap  = 0kB
[  315.031154]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  315.035101] Total swap = 0kB
[  315.038107]  ? print_usage_bug+0xc0/0xc0
[  315.043095] 1965979 pages RAM
[  315.046102]  ? __lock_acquire+0x62f/0x4c20
[  315.050139] 0 pages HighMem/MovableOnly
[  315.053232]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  315.057457] 342853 pages reserved
[  315.061422]  ? should_fail+0x22d/0xd01
[  315.066928] 0 pages cma reserved
[  315.070371]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.074287] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  315.077584]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  315.082958] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  315.089351]  ? __lock_acquire+0x62f/0x4c20
[  315.094446] syz-fuzzer cpuset=/ mems_allowed=0
[  315.104664]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  315.118540]  ? __lock_acquire+0x62f/0x4c20
[  315.122766]  ? should_fail+0x22d/0xd01
[  315.126658]  ? rcu_irq_exit+0x1a2/0x390
[  315.130634]  ? mark_held_locks+0x130/0x130
[  315.134867]  ? mark_held_locks+0x130/0x130
[  315.139108]  ? mark_held_locks+0xc7/0x130
[  315.143260]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  315.148269]  ? zap_class+0x640/0x640
[  315.152024]  ? print_usage_bug+0xc0/0xc0
[  315.156086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.161626]  ? check_preemption_disabled+0x48/0x280
[  315.166654]  ? __lock_is_held+0xb5/0x140
[  315.170731]  __alloc_pages_nodemask+0xa80/0xde0
[  315.175414]  ? zap_class+0x640/0x640
[  315.179133]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  315.184156]  ? find_held_lock+0x36/0x1c0
[  315.188227]  ? ____cache_alloc_node+0x1c7/0x1e0
[  315.192929]  ? lock_downgrade+0x900/0x900
[  315.197083]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.202623]  cache_grow_begin+0xa5/0x8c0
[  315.206683]  ? do_raw_spin_unlock+0xa7/0x330
[  315.211116]  fallback_alloc+0x204/0x2e0
[  315.215107]  ____cache_alloc_node+0x1c7/0x1e0
[  315.219618]  kmem_cache_alloc_node+0xe3/0x730
[  315.224112]  ? ipv6_get_ifaddr+0x42e/0x620
[  315.228369]  __alloc_skb+0x119/0x770
[  315.232092]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.237371]  ? netdev_alloc_frag+0x1f0/0x1f0
[  315.241778]  ? lock_downgrade+0x900/0x900
[  315.245931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.251467]  ? refcount_sub_and_test_checked+0x203/0x310
[  315.256925]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  315.262386]  ? addrconf_rs_timer+0x690/0x690
[  315.266801]  ndisc_alloc_skb+0x144/0x340
[  315.270867]  ndisc_send_rs+0x331/0x6e0
[  315.274764]  addrconf_rs_timer+0x314/0x690
[  315.279000]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.283253]  call_timer_fn+0x272/0x920
[  315.287137]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.291370]  ? process_timeout+0x40/0x40
[  315.295437]  ? __run_timers+0x7da/0xc70
[  315.299409]  ? _raw_spin_unlock_irq+0x27/0x80
[  315.303907]  ? _raw_spin_unlock_irq+0x27/0x80
[  315.308415]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.312647]  ? lockdep_hardirqs_on+0x296/0x5b0
[  315.317233]  ? trace_hardirqs_on+0xbd/0x310
[  315.321569]  ? kasan_check_read+0x11/0x20
[  315.325716]  ? __run_timers+0x7da/0xc70
[  315.329688]  ? trace_hardirqs_off_caller+0x310/0x310
[  315.334792]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.339026]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.343296]  __run_timers+0x7e5/0xc70
[  315.347102]  ? timer_fixup_init+0x70/0x70
[  315.351270]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  315.356304]  ? zap_class+0x640/0x640
[  315.360017]  ? enqueue_hrtimer+0x1a5/0x560
[  315.364264]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  315.369453]  ? find_held_lock+0x36/0x1c0
[  315.373515]  ? zap_class+0x640/0x640
[  315.377239]  ? pvclock_read_flags+0x160/0x160
[  315.381751]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.387316]  ? check_preemption_disabled+0x48/0x280
[  315.392336]  ? __lock_is_held+0xb5/0x140
[  315.396392]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.401928]  ? check_preemption_disabled+0x48/0x280
[  315.406972]  run_timer_softirq+0x52/0xb0
[  315.411063]  ? rcu_read_lock_sched_held+0x14f/0x180
[  315.416074]  __do_softirq+0x308/0xb7e
[  315.419871]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  315.424364]  ? lock_downgrade+0x900/0x900
[  315.428509]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  315.433627]  ? pvclock_read_flags+0x160/0x160
[  315.438138]  ? lapic_next_event+0x5a/0x90
[  315.442284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.447817]  ? kvm_clock_read+0x18/0x30
[  315.451976]  ? kvm_sched_clock_read+0x9/0x20
[  315.456396]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.461970]  ? check_preemption_disabled+0x48/0x280
[  315.466987]  irq_exit+0x17f/0x1c0
[  315.470452]  smp_apic_timer_interrupt+0x1cb/0x760
[  315.475288]  ? smp_reschedule_interrupt+0x109/0x650
[  315.480301]  ? smp_call_function_single_interrupt+0x650/0x650
[  315.486184]  ? interrupt_entry+0xb5/0xc0
[  315.490242]  ? trace_hardirqs_off_caller+0xbb/0x310
[  315.495253]  ? trace_hardirqs_off_caller+0xbb/0x310
[  315.500280]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  315.505122]  ? trace_hardirqs_on_caller+0x310/0x310
[  315.510149]  ? trace_hardirqs_on_caller+0x310/0x310
[  315.515178]  ? task_prio+0x50/0x50
[  315.518718]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.524250]  ? check_preemption_disabled+0x48/0x280
[  315.529282]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  315.534143]  apic_timer_interrupt+0xf/0x20
[  315.538368]  </IRQ>
[  315.540601] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  315.545525] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  315.564431] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  315.572133] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  315.579392] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  315.586667] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  315.593935] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  315.601206] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  315.608505]  skb_clone+0x1bb/0x500
[  315.612051]  ? finish_task_switch+0x2f4/0x910
[  315.616545]  ? skb_split+0x11e0/0x11e0
[  315.620433]  ? preempt_notifier_register+0x200/0x200
[  315.625533]  ? __switch_to_asm+0x34/0x70
[  315.629588]  ? __switch_to_asm+0x34/0x70
[  315.633643]  ? __switch_to_asm+0x40/0x70
[  315.637708]  ? __switch_to_asm+0x34/0x70
[  315.641767]  ? __switch_to_asm+0x40/0x70
[  315.645824]  ? __switch_to_asm+0x34/0x70
[  315.649880]  ? __switch_to_asm+0x40/0x70
[  315.653943]  ? __switch_to_asm+0x34/0x70
[  315.658015]  ? __switch_to_asm+0x34/0x70
[  315.662068]  ? __switch_to_asm+0x40/0x70
[  315.666138]  ? __switch_to_asm+0x34/0x70
[  315.670207]  bpf_clone_redirect+0xb9/0x490
[  315.674456]  ? __schedule+0x8d7/0x21d0
[  315.678365]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  315.683384]  ? __sched_text_start+0x8/0x8
[  315.687534]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  315.692344]  ? find_held_lock+0x36/0x1c0
[  315.696413]  ? lock_acquire+0x1ed/0x520
[  315.700384]  ? bpf_test_run+0x3cb/0x780
[  315.704357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.709900]  ? check_preemption_disabled+0x48/0x280
[  315.714924]  ? kasan_check_read+0x11/0x20
[  315.719064]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.724333]  ? rcu_softirq_qs+0x20/0x20
[  315.728314]  ? preempt_schedule+0x4d/0x60
[  315.732458]  ? ___preempt_schedule+0x16/0x18
[  315.736881]  ? bpf_test_run+0x25d/0x780
[  315.740865]  ? netlink_diag_dump+0x2a0/0x2a0
[  315.745517]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  315.751070]  ? bpf_test_init.isra.10+0x70/0x100
[  315.755763]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  315.760543]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  315.765381]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  315.770919]  ? fput+0x130/0x1a0
[  315.774209]  ? __bpf_prog_get+0x9b/0x290
[  315.778283]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  315.783121]  ? bpf_prog_test_run+0x130/0x1a0
[  315.787528]  ? __x64_sys_bpf+0x3d8/0x520
[  315.791584]  ? bpf_prog_get+0x20/0x20
[  315.795409]  ? do_syscall_64+0x1b9/0x820
[  315.799480]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  315.804843]  ? syscall_return_slowpath+0x5e0/0x5e0
[  315.809771]  ? trace_hardirqs_on_caller+0x310/0x310
[  315.814789]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  315.819817]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  315.826484]  ? __switch_to_asm+0x40/0x70
[  315.830541]  ? __switch_to_asm+0x34/0x70
[  315.834628]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  315.839479]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  315.844862] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  315.844946] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  315.851893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  315.851901] Call Trace:
[  315.858474] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  315.867733]  <IRQ>
[  315.870308] syz-executor3 cpuset=syz3 mems_allowed=0
[  315.881300]  dump_stack+0x244/0x39d
[  315.892127]  ? dump_stack_print_info.cold.1+0x20/0x20
[  315.897336]  warn_alloc.cold.116+0xb7/0x1bd
[  315.901658]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  315.906521]  ? lock_downgrade+0x900/0x900
[  315.910671]  ? trace_hardirqs_off+0xb8/0x310
[  315.915140]  ? trace_hardirqs_off+0xb8/0x310
[  315.919575]  __alloc_pages_slowpath+0x26e8/0x2e10
[  315.924439]  ? warn_alloc+0x120/0x120
[  315.928241]  ? print_usage_bug+0xc0/0xc0
[  315.932336]  ? warn_alloc+0x120/0x120
[  315.936170]  ? warn_alloc+0x120/0x120
[  315.940020]  ? print_usage_bug+0xc0/0xc0
[  315.944085]  ? kvm_clock_read+0x18/0x30
[  315.948058]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  315.953084]  ? print_usage_bug+0xc0/0xc0
[  315.957150]  ? __lock_acquire+0x62f/0x4c20
[  315.961392]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  315.966933]  ? should_fail+0x22d/0xd01
[  315.970818]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.976126]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  315.981261]  ? __lock_acquire+0x62f/0x4c20
[  315.985511]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  315.990609]  ? __lock_acquire+0x62f/0x4c20
[  315.994838]  ? should_fail+0x22d/0xd01
[  315.998745]  ? rcu_irq_exit+0x1a2/0x390
[  316.002725]  ? mark_held_locks+0x130/0x130
[  316.006990]  ? mark_held_locks+0x130/0x130
[  316.011245]  ? mark_held_locks+0xc7/0x130
[  316.015391]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  316.020421]  ? zap_class+0x640/0x640
[  316.024133]  ? print_usage_bug+0xc0/0xc0
[  316.028191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.033727]  ? check_preemption_disabled+0x48/0x280
[  316.038747]  ? __lock_is_held+0xb5/0x140
[  316.042810]  __alloc_pages_nodemask+0xa80/0xde0
[  316.047508]  ? zap_class+0x640/0x640
[  316.051223]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  316.056260]  ? find_held_lock+0x36/0x1c0
[  316.060324]  ? ____cache_alloc_node+0x1c7/0x1e0
[  316.065003]  ? lock_downgrade+0x900/0x900
[  316.069173]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.074713]  cache_grow_begin+0xa5/0x8c0
[  316.078767]  ? do_raw_spin_unlock+0xa7/0x330
[  316.083180]  fallback_alloc+0x204/0x2e0
[  316.087159]  ____cache_alloc_node+0x1c7/0x1e0
[  316.091656]  kmem_cache_alloc_node+0xe3/0x730
[  316.096152]  ? ipv6_get_ifaddr+0x42e/0x620
[  316.100388]  __alloc_skb+0x119/0x770
[  316.104098]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.109387]  ? netdev_alloc_frag+0x1f0/0x1f0
[  316.113804]  ? lock_downgrade+0x900/0x900
[  316.117952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.123487]  ? refcount_sub_and_test_checked+0x203/0x310
[  316.128955]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  316.134406]  ? addrconf_rs_timer+0x690/0x690
[  316.138827]  ndisc_alloc_skb+0x144/0x340
[  316.142896]  ndisc_send_rs+0x331/0x6e0
[  316.146788]  addrconf_rs_timer+0x314/0x690
[  316.151044]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.155290]  call_timer_fn+0x272/0x920
[  316.159179]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.163417]  ? process_timeout+0x40/0x40
[  316.167487]  ? mark_held_locks+0xc7/0x130
[  316.171667]  ? _raw_spin_unlock_irq+0x27/0x80
[  316.176164]  ? _raw_spin_unlock_irq+0x27/0x80
[  316.180653]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.184900]  ? lockdep_hardirqs_on+0x296/0x5b0
[  316.189484]  ? trace_hardirqs_on+0xbd/0x310
[  316.193801]  ? kasan_check_read+0x11/0x20
[  316.197946]  ? __run_timers+0x7da/0xc70
[  316.201921]  ? trace_hardirqs_off_caller+0x310/0x310
[  316.207026]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.211281]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.215542]  __run_timers+0x7e5/0xc70
[  316.219398]  ? timer_fixup_init+0x70/0x70
[  316.223546]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  316.228561]  ? zap_class+0x640/0x640
[  316.232277]  ? print_usage_bug+0xc0/0xc0
[  316.236341]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  316.241539]  ? find_held_lock+0x36/0x1c0
[  316.245620]  ? zap_class+0x640/0x640
[  316.249335]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.254883]  ? check_preemption_disabled+0x48/0x280
[  316.259919]  ? __lock_is_held+0xb5/0x140
[  316.263984]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.269521]  ? check_preemption_disabled+0x48/0x280
[  316.274540]  run_timer_softirq+0x52/0xb0
[  316.278600]  ? rcu_read_lock_sched_held+0x14f/0x180
[  316.283622]  __do_softirq+0x308/0xb7e
[  316.287418]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  316.291947]  ? lock_downgrade+0x900/0x900
[  316.296095]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  316.301208]  ? pvclock_read_flags+0x160/0x160
[  316.305720]  ? lapic_next_event+0x5a/0x90
[  316.309869]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.315429]  ? kvm_clock_read+0x18/0x30
[  316.319399]  ? kvm_sched_clock_read+0x9/0x20
[  316.323821]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.329356]  ? check_preemption_disabled+0x48/0x280
[  316.334379]  irq_exit+0x17f/0x1c0
[  316.337831]  smp_apic_timer_interrupt+0x1cb/0x760
[  316.342667]  ? smp_reschedule_interrupt+0x109/0x650
[  316.347690]  ? smp_call_function_single_interrupt+0x650/0x650
[  316.353656]  ? interrupt_entry+0xb5/0xc0
[  316.357719]  ? trace_hardirqs_off_caller+0xbb/0x310
[  316.362748]  ? trace_hardirqs_off_caller+0xbb/0x310
[  316.367764]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  316.372617]  ? trace_hardirqs_on_caller+0x310/0x310
[  316.377642]  ? trace_hardirqs_on_caller+0x310/0x310
[  316.382666]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  316.387557]  apic_timer_interrupt+0xf/0x20
[  316.391793]  </IRQ>
[  316.394031] RIP: 0010:dump_stack+0x358/0x39d
[  316.398454] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  316.417351] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  316.425061] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  316.432330] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  316.439607] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  316.446872] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  316.454145] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  316.461426]  ? dump_stack+0x34f/0x39d
[  316.465241]  ? dump_stack_print_info.cold.1+0x20/0x20
[  316.470435]  ? mark_held_locks+0x130/0x130
[  316.474669]  ? mark_held_locks+0x130/0x130
[  316.478942]  dump_header+0x27b/0xf72
[  316.482701]  ? pagefault_out_of_memory+0x197/0x197
[  316.487633]  ? __lock_acquire+0x62f/0x4c20
[  316.491864]  ? percpu_ref_get_many+0x240/0x240
[  316.496450]  ? print_usage_bug+0xc0/0xc0
[  316.500540]  ? zap_class+0x640/0x640
[  316.504254]  ? print_usage_bug+0xc0/0xc0
[  316.508324]  ? print_usage_bug+0xc0/0xc0
[  316.512410]  ? zap_class+0x640/0x640
[  316.516139]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.521673]  ? find_held_lock+0x36/0x1c0
[  316.525739]  ? mark_held_locks+0xc7/0x130
[  316.529882]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  316.534984]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  316.540084]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  316.544710]  ? trace_hardirqs_on+0xbd/0x310
[  316.549041]  ? kasan_check_read+0x11/0x20
[  316.553185]  ? ___ratelimit+0x3b4/0x672
[  316.557159]  ? trace_hardirqs_off_caller+0x310/0x310
[  316.562257]  ? trace_hardirqs_on+0x310/0x310
[  316.566675]  ? lock_downgrade+0x900/0x900
[  316.570830]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  316.575932]  ? ___ratelimit+0x3b9/0x672
[  316.579909]  ? idr_get_free+0xf70/0xf70
[  316.583928]  ? find_held_lock+0x36/0x1c0
[  316.588031]  oom_kill_process.cold.27+0x10/0x903
[  316.592787]  ? zap_class+0x640/0x640
[  316.596513]  ? check_preemption_disabled+0x48/0x280
[  316.601544]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  316.606472]  ? kasan_check_read+0x11/0x20
[  316.610627]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.615912]  ? oom_evaluate_task+0x540/0x540
[  316.620329]  ? find_held_lock+0x36/0x1c0
[  316.624397]  ? out_of_memory+0x974/0x1430
[  316.628548]  ? lock_downgrade+0x900/0x900
[  316.632726]  ? check_preemption_disabled+0x48/0x280
[  316.637759]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  316.642703]  ? kasan_check_read+0x11/0x20
[  316.646852]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.652129]  ? rcu_softirq_qs+0x20/0x20
[  316.656105]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.661645]  ? oom_evaluate_task+0x302/0x540
[  316.666054]  out_of_memory+0xa84/0x1430
[  316.670042]  ? oom_killer_disable+0x3a0/0x3a0
[  316.674537]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  316.679473]  ? __ww_mutex_check_waiters+0x160/0x160
[  316.684499]  __alloc_pages_slowpath+0x2354/0x2e10
[  316.689371]  ? warn_alloc+0x120/0x120
[  316.693173]  ? mark_held_locks+0x130/0x130
[  316.697416]  ? find_get_entry+0xaae/0x1120
[  316.701674]  ? filemap_map_pages+0x1a20/0x1a20
[  316.706278]  ? zap_class+0x640/0x640
[  316.710016]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.715555]  ? check_preemption_disabled+0x48/0x280
[  316.720586]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.726122]  ? should_fail+0x22d/0xd01
[  316.730019]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  316.735120]  ? zap_class+0x640/0x640
[  316.738851]  ? __lock_is_held+0xb5/0x140
[  316.742922]  ? mark_held_locks+0x130/0x130
[  316.747160]  ? lock_release+0xa00/0xa00
[  316.751135]  ? perf_trace_sched_process_exec+0x860/0x860
[  316.756626]  ? xa_load+0x2ba/0x460
[  316.760167]  ? lock_downgrade+0x900/0x900
[  316.764318]  ? __might_sleep+0x95/0x190
[  316.768301]  __alloc_pages_nodemask+0xa80/0xde0
[  316.772979]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  316.778003]  ? __page_cache_alloc+0x191/0x5c0
[  316.782496]  ? xa_load+0x2e1/0x460
[  316.786038]  ? xa_clear_mark+0x40/0x40
[  316.789936]  ? zap_class+0x640/0x640
[  316.793689]  ? zap_class+0x640/0x640
[  316.797418]  ? zap_class+0x640/0x640
[  316.801127]  ? __do_page_cache_readahead+0x663/0x810
[  316.806230]  ? find_held_lock+0x36/0x1c0
[  316.810292]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  316.815833]  alloc_pages_current+0x173/0x350
[  316.820245]  __page_cache_alloc+0x38c/0x5c0
[  316.824579]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  316.829521]  ? kasan_check_read+0x11/0x20
[  316.833702]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.838992]  ? generic_perform_write+0x6a0/0x6a0
[  316.843748]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.849299]  ? check_preemption_disabled+0x48/0x280
[  316.854320]  filemap_fault+0x1595/0x25f0
[  316.858419]  ? __lock_page_or_retry+0xa00/0xa00
[  316.863131]  ? mark_held_locks+0x130/0x130
[  316.867370]  ? filemap_map_pages+0xd6b/0x1a20
[  316.871867]  ? lock_downgrade+0x900/0x900
[  316.876016]  ? check_preemption_disabled+0x48/0x280
[  316.881036]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  316.885960]  ? kasan_check_read+0x11/0x20
[  316.890103]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.895378]  ? rcu_softirq_qs+0x20/0x20
[  316.899359]  ? filemap_map_pages+0xd92/0x1a20
[  316.903858]  ? print_usage_bug+0xc0/0xc0
[  316.907935]  ? find_get_entries_tag+0x1400/0x1400
[  316.912772]  ? __kasan_slab_free+0x102/0x150
[  316.917190]  ? kasan_slab_free+0xe/0x10
[  316.921160]  ? kmem_cache_free+0x83/0x290
[  316.925302]  ? __sigqueue_free.part.29+0x74/0x90
[  316.930065]  ? lock_acquire+0x1ed/0x520
[  316.934031]  ? ext4_filemap_fault+0x7a/0xad
[  316.938379]  ? lock_release+0xa00/0xa00
[  316.942348]  ? perf_trace_sched_process_exec+0x860/0x860
[  316.947793]  ? print_usage_bug+0xc0/0xc0
[  316.951873]  ? print_usage_bug+0xc0/0xc0
[  316.955954]  ? down_read+0x8d/0x120
[  316.959588]  ? ext4_filemap_fault+0x7a/0xad
[  316.963936]  ? __down_interruptible+0x700/0x700
[  316.968606]  ext4_filemap_fault+0x82/0xad
[  316.972772]  __do_fault+0x100/0x6b0
[  316.976401]  ? pmd_devmap_trans_unstable+0x220/0x220
[  316.981513]  ? mark_held_locks+0x130/0x130
[  316.985742]  ? mark_held_locks+0x130/0x130
[  316.989975]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  316.995551]  ? rcu_pm_notify+0xc0/0xc0
[  316.999454]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.005011]  __handle_mm_fault+0x3ea0/0x5be0
[  317.009473]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  317.014312]  ? _raw_spin_unlock_irq+0x27/0x80
[  317.018822]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  317.023419]  ? trace_hardirqs_on+0xbd/0x310
[  317.027738]  ? kasan_check_read+0x11/0x20
[  317.031905]  ? __set_current_blocked+0xdf/0x120
[  317.036574]  ? trace_hardirqs_off_caller+0x310/0x310
[  317.041693]  ? zap_class+0x640/0x640
[  317.045406]  ? zap_class+0x640/0x640
[  317.049122]  ? find_held_lock+0x36/0x1c0
[  317.053186]  ? handle_mm_fault+0x42a/0xc70
[  317.057429]  ? lock_downgrade+0x900/0x900
[  317.061590]  ? check_preemption_disabled+0x48/0x280
[  317.066623]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  317.071547]  ? kasan_check_read+0x11/0x20
[  317.075693]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.080967]  ? rcu_softirq_qs+0x20/0x20
[  317.084952]  ? trace_hardirqs_off_caller+0x310/0x310
[  317.090054]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.095588]  ? check_preemption_disabled+0x48/0x280
[  317.100630]  handle_mm_fault+0x54f/0xc70
[  317.104713]  ? __handle_mm_fault+0x5be0/0x5be0
[  317.109292]  ? find_vma+0x34/0x190
[  317.112834]  __do_page_fault+0x5e8/0xe60
[  317.116901]  ? exit_to_usermode_loop+0x1f4/0x380
[  317.121662]  do_page_fault+0xf2/0x7e0
[  317.125468]  ? vmalloc_sync_all+0x30/0x30
[  317.129612]  ? error_entry+0x70/0xd0
[  317.133325]  ? trace_hardirqs_off_caller+0xbb/0x310
[  317.138338]  ? trace_hardirqs_on_caller+0xc0/0x310
[  317.143264]  ? syscall_return_slowpath+0x5e0/0x5e0
[  317.148191]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  317.153034]  ? trace_hardirqs_on_caller+0x310/0x310
[  317.158047]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  317.163497]  ? prepare_exit_to_usermode+0x291/0x3b0
[  317.168509]  ? page_fault+0x8/0x30
[  317.172053]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  317.176904]  ? page_fault+0x8/0x30
[  317.180467]  page_fault+0x1e/0x30
[  317.183920] RIP: 0033:0x45db60
[  317.187125] Code: Bad RIP value.
[  317.190487] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  317.195844] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  317.203141] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  317.210405] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  317.217674] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  317.224944] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  317.232235] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  317.232241] warn_alloc_show_mem: 1 callbacks suppressed
[  317.232247] Mem-Info:
[  317.239528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  317.244894] active_anon:54051 inactive_anon:192 isolated_anon:0
[  317.244894]  active_file:9 inactive_file:20 isolated_file:0
[  317.244894]  unevictable:0 dirty:0 writeback:0 unstable:0
[  317.244894]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  317.244894]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  317.244894]  free:13735 free_pcp:540 free_cma:0
[  317.247262] Call Trace:
[  317.256644] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  317.289424]  <IRQ>
[  317.291995] 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
[  317.319413]  dump_stack+0x244/0x39d
[  317.321535] lowmem_reserve[]: 0 2818 6321 6321
[  317.347656]  ? dump_stack_print_info.cold.1+0x20/0x20
[  317.351278] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  317.355857]  warn_alloc.cold.116+0xb7/0x1bd
[  317.361012] lowmem_reserve[]: 0 0 3503 3503
[  317.388776]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  317.393071] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  317.397384]  ? lock_downgrade+0x900/0x900
[  317.402211] lowmem_reserve[]: 0 0 0 0
[  317.431262]  ? trace_hardirqs_off+0xb8/0x310
[  317.435393] 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
[  317.439189]  ? trace_hardirqs_off+0xb8/0x310
[  317.443561] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  317.457073]  __alloc_pages_slowpath+0x26e8/0x2e10
[  317.461449] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  317.476713]  ? warn_alloc+0x120/0x120
[  317.481533] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  317.495658]  ? print_usage_bug+0xc0/0xc0
[  317.499445] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  317.508264]  ? warn_alloc+0x120/0x120
[  317.512329] 273 total pagecache pages
[  317.520917]  ? warn_alloc+0x120/0x120
[  317.524719] 0 pages in swap cache
[  317.528548]  ? print_usage_bug+0xc0/0xc0
[  317.532327] Swap cache stats: add 0, delete 0, find 0/0
[  317.535764]  ? kvm_clock_read+0x18/0x30
[  317.539793] Free swap  = 0kB
[  317.545142]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  317.549091] Total swap = 0kB
[  317.552100]  ? print_usage_bug+0xc0/0xc0
[  317.557091] 1965979 pages RAM
[  317.560112]  ? __lock_acquire+0x62f/0x4c20
[  317.564146] 0 pages HighMem/MovableOnly
[  317.567239]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.571442] 342853 pages reserved
[  317.575416]  ? should_fail+0x22d/0xd01
[  317.580928] 0 pages cma reserved
[  317.584382]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.588290] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  317.591591]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  317.596943] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  317.603325]  ? __lock_acquire+0x62f/0x4c20
[  317.608408] syz-fuzzer cpuset=/ mems_allowed=0
[  317.618626]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  317.632516]  ? __lock_acquire+0x62f/0x4c20
[  317.636754]  ? should_fail+0x22d/0xd01
[  317.640667]  ? rcu_irq_exit+0x1a2/0x390
[  317.644667]  ? mark_held_locks+0x130/0x130
[  317.649253]  ? mark_held_locks+0x130/0x130
[  317.653494]  ? mark_held_locks+0xc7/0x130
[  317.657661]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  317.662703]  ? zap_class+0x640/0x640
[  317.666417]  ? print_usage_bug+0xc0/0xc0
[  317.670481]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.676018]  ? check_preemption_disabled+0x48/0x280
[  317.681044]  ? __lock_is_held+0xb5/0x140
[  317.685111]  __alloc_pages_nodemask+0xa80/0xde0
[  317.689785]  ? zap_class+0x640/0x640
[  317.693505]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  317.698563]  ? find_held_lock+0x36/0x1c0
[  317.702631]  ? ____cache_alloc_node+0x1c7/0x1e0
[  317.707298]  ? lock_downgrade+0x900/0x900
[  317.711453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.716992]  cache_grow_begin+0xa5/0x8c0
[  317.721052]  ? do_raw_spin_unlock+0xa7/0x330
[  317.725468]  fallback_alloc+0x204/0x2e0
[  317.729465]  ____cache_alloc_node+0x1c7/0x1e0
[  317.733978]  kmem_cache_alloc_node+0xe3/0x730
[  317.738474]  ? ipv6_get_ifaddr+0x42e/0x620
[  317.742922]  __alloc_skb+0x119/0x770
[  317.746636]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.751940]  ? netdev_alloc_frag+0x1f0/0x1f0
[  317.756350]  ? lock_downgrade+0x900/0x900
[  317.760566]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.766103]  ? refcount_sub_and_test_checked+0x203/0x310
[  317.771554]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  317.777004]  ? addrconf_rs_timer+0x690/0x690
[  317.781427]  ndisc_alloc_skb+0x144/0x340
[  317.785510]  ndisc_send_rs+0x331/0x6e0
[  317.789426]  addrconf_rs_timer+0x314/0x690
[  317.793666]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  317.797918]  call_timer_fn+0x272/0x920
[  317.801807]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  317.806038]  ? process_timeout+0x40/0x40
[  317.810102]  ? __run_timers+0x7da/0xc70
[  317.814073]  ? _raw_spin_unlock_irq+0x27/0x80
[  317.818564]  ? _raw_spin_unlock_irq+0x27/0x80
[  317.823052]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  317.827287]  ? lockdep_hardirqs_on+0x296/0x5b0
[  317.831883]  ? trace_hardirqs_on+0xbd/0x310
[  317.836231]  ? kasan_check_read+0x11/0x20
[  317.840393]  ? __run_timers+0x7da/0xc70
[  317.844363]  ? trace_hardirqs_off_caller+0x310/0x310
[  317.849470]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  317.853706]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  317.857941]  __run_timers+0x7e5/0xc70
[  317.861776]  ? timer_fixup_init+0x70/0x70
[  317.865926]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  317.870943]  ? zap_class+0x640/0x640
[  317.874912]  ? enqueue_hrtimer+0x1a5/0x560
[  317.879151]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  317.884350]  ? find_held_lock+0x36/0x1c0
[  317.888417]  ? zap_class+0x640/0x640
[  317.892131]  ? pvclock_read_flags+0x160/0x160
[  317.896628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.902163]  ? check_preemption_disabled+0x48/0x280
[  317.907198]  ? __lock_is_held+0xb5/0x140
[  317.911296]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.916867]  ? check_preemption_disabled+0x48/0x280
[  317.921915]  run_timer_softirq+0x52/0xb0
[  317.925979]  ? rcu_read_lock_sched_held+0x14f/0x180
[  317.930994]  __do_softirq+0x308/0xb7e
[  317.934800]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  317.939291]  ? lock_downgrade+0x900/0x900
[  317.943442]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  317.948552]  ? pvclock_read_flags+0x160/0x160
[  317.953062]  ? lapic_next_event+0x5a/0x90
[  317.957242]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.962802]  ? kvm_clock_read+0x18/0x30
[  317.966789]  ? kvm_sched_clock_read+0x9/0x20
[  317.971203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.976742]  ? check_preemption_disabled+0x48/0x280
[  317.981769]  irq_exit+0x17f/0x1c0
[  317.985223]  smp_apic_timer_interrupt+0x1cb/0x760
[  317.990058]  ? smp_reschedule_interrupt+0x109/0x650
[  317.995073]  ? smp_call_function_single_interrupt+0x650/0x650
[  318.000970]  ? interrupt_entry+0xb5/0xc0
[  318.005024]  ? trace_hardirqs_off_caller+0xbb/0x310
[  318.010034]  ? trace_hardirqs_off_caller+0xbb/0x310
[  318.015059]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.019959]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.024970]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.029997]  ? task_prio+0x50/0x50
[  318.033550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.039083]  ? check_preemption_disabled+0x48/0x280
[  318.044103]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.048967]  apic_timer_interrupt+0xf/0x20
[  318.053208]  </IRQ>
[  318.055458] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  318.060413] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  318.079318] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  318.087016] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  318.094276] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  318.101543] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  318.109023] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  318.116286] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  318.123602]  skb_clone+0x1bb/0x500
[  318.127135]  ? finish_task_switch+0x2f4/0x910
[  318.131634]  ? skb_split+0x11e0/0x11e0
[  318.135548]  ? preempt_notifier_register+0x200/0x200
[  318.140654]  ? __switch_to_asm+0x34/0x70
[  318.144703]  ? __switch_to_asm+0x34/0x70
[  318.148769]  ? __switch_to_asm+0x40/0x70
[  318.152825]  ? __switch_to_asm+0x34/0x70
[  318.156878]  ? __switch_to_asm+0x40/0x70
[  318.160959]  ? __switch_to_asm+0x34/0x70
[  318.165013]  ? __switch_to_asm+0x40/0x70
[  318.169069]  ? __switch_to_asm+0x34/0x70
[  318.173130]  ? __switch_to_asm+0x34/0x70
[  318.177196]  ? __switch_to_asm+0x40/0x70
[  318.181280]  ? __switch_to_asm+0x34/0x70
[  318.185401]  bpf_clone_redirect+0xb9/0x490
[  318.189678]  ? __schedule+0x8d7/0x21d0
[  318.193583]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  318.198629]  ? __sched_text_start+0x8/0x8
[  318.202772]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  318.207538]  ? find_held_lock+0x36/0x1c0
[  318.211608]  ? lock_acquire+0x1ed/0x520
[  318.215584]  ? bpf_test_run+0x3cb/0x780
[  318.219559]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.225101]  ? check_preemption_disabled+0x48/0x280
[  318.230119]  ? kasan_check_read+0x11/0x20
[  318.234278]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.239554]  ? rcu_softirq_qs+0x20/0x20
[  318.243526]  ? preempt_schedule+0x4d/0x60
[  318.247676]  ? ___preempt_schedule+0x16/0x18
[  318.252097]  ? bpf_test_run+0x25d/0x780
[  318.256087]  ? netlink_diag_dump+0x2a0/0x2a0
[  318.260488]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  318.266018]  ? bpf_test_init.isra.10+0x70/0x100
[  318.270696]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  318.275453]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  318.280301]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  318.285829]  ? fput+0x130/0x1a0
[  318.289099]  ? __bpf_prog_get+0x9b/0x290
[  318.293154]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  318.297992]  ? bpf_prog_test_run+0x130/0x1a0
[  318.302418]  ? __x64_sys_bpf+0x3d8/0x520
[  318.306479]  ? bpf_prog_get+0x20/0x20
[  318.310293]  ? do_syscall_64+0x1b9/0x820
[  318.314347]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  318.319711]  ? syscall_return_slowpath+0x5e0/0x5e0
[  318.324635]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.329643]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  318.334670]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  318.341339]  ? __switch_to_asm+0x40/0x70
[  318.345390]  ? __switch_to_asm+0x34/0x70
[  318.349449]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.354289]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  318.359673] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  318.359758] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  318.366680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  318.366689] Call Trace:
[  318.366694]  <IRQ>
[  318.366709]  dump_stack+0x244/0x39d
[  318.366724]  ? dump_stack_print_info.cold.1+0x20/0x20
[  318.373297] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  318.382574]  warn_alloc.cold.116+0xb7/0x1bd
[  318.385131] syz-executor3 cpuset=syz3 mems_allowed=0
[  318.387266]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  318.420773]  ? lock_downgrade+0x900/0x900
[  318.424939]  ? trace_hardirqs_off+0xb8/0x310
[  318.429349]  ? trace_hardirqs_off+0xb8/0x310
[  318.433777]  __alloc_pages_slowpath+0x26e8/0x2e10
[  318.438639]  ? warn_alloc+0x120/0x120
[  318.442440]  ? print_usage_bug+0xc0/0xc0
[  318.446514]  ? warn_alloc+0x120/0x120
[  318.450358]  ? warn_alloc+0x120/0x120
[  318.454153]  ? print_usage_bug+0xc0/0xc0
[  318.458209]  ? kvm_clock_read+0x18/0x30
[  318.462177]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  318.467219]  ? print_usage_bug+0xc0/0xc0
[  318.471273]  ? __lock_acquire+0x62f/0x4c20
[  318.475506]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  318.481040]  ? should_fail+0x22d/0xd01
[  318.484932]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.490203]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  318.495304]  ? __lock_acquire+0x62f/0x4c20
[  318.499545]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  318.504644]  ? __lock_acquire+0x62f/0x4c20
[  318.508870]  ? should_fail+0x22d/0xd01
[  318.512757]  ? rcu_irq_exit+0x1a2/0x390
[  318.516738]  ? mark_held_locks+0x130/0x130
[  318.520988]  ? mark_held_locks+0x130/0x130
[  318.525235]  ? mark_held_locks+0xc7/0x130
[  318.529393]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  318.534407]  ? zap_class+0x640/0x640
[  318.538114]  ? print_usage_bug+0xc0/0xc0
[  318.542174]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.547720]  ? check_preemption_disabled+0x48/0x280
[  318.552757]  ? __lock_is_held+0xb5/0x140
[  318.556818]  __alloc_pages_nodemask+0xa80/0xde0
[  318.561515]  ? zap_class+0x640/0x640
[  318.565245]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  318.570296]  ? find_held_lock+0x36/0x1c0
[  318.574388]  ? ____cache_alloc_node+0x1c7/0x1e0
[  318.579056]  ? lock_downgrade+0x900/0x900
[  318.583207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.588744]  cache_grow_begin+0xa5/0x8c0
[  318.592801]  ? do_raw_spin_unlock+0xa7/0x330
[  318.597239]  fallback_alloc+0x204/0x2e0
[  318.601230]  ____cache_alloc_node+0x1c7/0x1e0
[  318.605725]  kmem_cache_alloc_node+0xe3/0x730
[  318.610222]  ? ipv6_get_ifaddr+0x42e/0x620
[  318.614465]  __alloc_skb+0x119/0x770
[  318.618204]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.623496]  ? netdev_alloc_frag+0x1f0/0x1f0
[  318.627908]  ? lock_downgrade+0x900/0x900
[  318.632090]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.637630]  ? refcount_sub_and_test_checked+0x203/0x310
[  318.643080]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  318.648545]  ? addrconf_rs_timer+0x690/0x690
[  318.652990]  ndisc_alloc_skb+0x144/0x340
[  318.657054]  ndisc_send_rs+0x331/0x6e0
[  318.660967]  addrconf_rs_timer+0x314/0x690
[  318.665204]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.669458]  call_timer_fn+0x272/0x920
[  318.673357]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.677588]  ? process_timeout+0x40/0x40
[  318.681651]  ? mark_held_locks+0xc7/0x130
[  318.685802]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.690294]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.695827]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.700062]  ? lockdep_hardirqs_on+0x296/0x5b0
[  318.704645]  ? trace_hardirqs_on+0xbd/0x310
[  318.708966]  ? kasan_check_read+0x11/0x20
[  318.713116]  ? __run_timers+0x7da/0xc70
[  318.717092]  ? trace_hardirqs_off_caller+0x310/0x310
[  318.722203]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.726443]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.730679]  __run_timers+0x7e5/0xc70
[  318.734522]  ? timer_fixup_init+0x70/0x70
[  318.738671]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  318.743700]  ? zap_class+0x640/0x640
[  318.747417]  ? print_usage_bug+0xc0/0xc0
[  318.751482]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  318.756679]  ? find_held_lock+0x36/0x1c0
[  318.760746]  ? zap_class+0x640/0x640
[  318.764464]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.770003]  ? check_preemption_disabled+0x48/0x280
[  318.775030]  ? __lock_is_held+0xb5/0x140
[  318.779118]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.784671]  ? check_preemption_disabled+0x48/0x280
[  318.789702]  run_timer_softirq+0x52/0xb0
[  318.793765]  ? rcu_read_lock_sched_held+0x14f/0x180
[  318.798786]  __do_softirq+0x308/0xb7e
[  318.802592]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  318.807085]  ? lock_downgrade+0x900/0x900
[  318.811240]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  318.816352]  ? pvclock_read_flags+0x160/0x160
[  318.820848]  ? lapic_next_event+0x5a/0x90
[  318.825011]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.830555]  ? kvm_clock_read+0x18/0x30
[  318.834531]  ? kvm_sched_clock_read+0x9/0x20
[  318.838957]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  318.844512]  ? check_preemption_disabled+0x48/0x280
[  318.849553]  irq_exit+0x17f/0x1c0
[  318.853010]  smp_apic_timer_interrupt+0x1cb/0x760
[  318.857856]  ? smp_reschedule_interrupt+0x109/0x650
[  318.862881]  ? smp_call_function_single_interrupt+0x650/0x650
[  318.868773]  ? interrupt_entry+0xb5/0xc0
[  318.872834]  ? trace_hardirqs_off_caller+0xbb/0x310
[  318.878342]  ? trace_hardirqs_off_caller+0xbb/0x310
[  318.883359]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.888205]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.893220]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.898249]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.903096]  apic_timer_interrupt+0xf/0x20
[  318.907323]  </IRQ>
[  318.909562] RIP: 0010:dump_stack+0x358/0x39d
[  318.913987] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  318.932885] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  318.940615] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  318.947904] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  318.955170] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  318.962478] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  318.969741] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  318.977020]  ? dump_stack+0x34f/0x39d
[  318.980823]  ? dump_stack_print_info.cold.1+0x20/0x20
[  318.986042]  ? mark_held_locks+0x130/0x130
[  318.990273]  ? mark_held_locks+0x130/0x130
[  318.994518]  dump_header+0x27b/0xf72
[  318.998263]  ? pagefault_out_of_memory+0x197/0x197
[  319.003210]  ? __lock_acquire+0x62f/0x4c20
[  319.007489]  ? percpu_ref_get_many+0x240/0x240
[  319.012069]  ? print_usage_bug+0xc0/0xc0
[  319.016128]  ? zap_class+0x640/0x640
[  319.019839]  ? print_usage_bug+0xc0/0xc0
[  319.023899]  ? print_usage_bug+0xc0/0xc0
[  319.027957]  ? zap_class+0x640/0x640
[  319.031668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  319.037238]  ? find_held_lock+0x36/0x1c0
[  319.041332]  ? mark_held_locks+0xc7/0x130
[  319.045492]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  319.050601]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  319.055711]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  319.060314]  ? trace_hardirqs_on+0xbd/0x310
[  319.064628]  ? kasan_check_read+0x11/0x20
[  319.068781]  ? ___ratelimit+0x3b4/0x672
[  319.072768]  ? trace_hardirqs_off_caller+0x310/0x310
[  319.077879]  ? trace_hardirqs_on+0x310/0x310
[  319.082347]  ? lock_downgrade+0x900/0x900
[  319.086504]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  319.091615]  ? ___ratelimit+0x3b9/0x672
[  319.095614]  ? idr_get_free+0xf70/0xf70
[  319.099590]  ? find_held_lock+0x36/0x1c0
[  319.103658]  oom_kill_process.cold.27+0x10/0x903
[  319.108418]  ? zap_class+0x640/0x640
[  319.112130]  ? check_preemption_disabled+0x48/0x280
[  319.117160]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.122114]  ? kasan_check_read+0x11/0x20
[  319.126261]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.131540]  ? oom_evaluate_task+0x540/0x540
[  319.135953]  ? find_held_lock+0x36/0x1c0
[  319.140022]  ? out_of_memory+0x974/0x1430
[  319.144165]  ? lock_downgrade+0x900/0x900
[  319.148314]  ? check_preemption_disabled+0x48/0x280
[  319.153344]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.158280]  ? kasan_check_read+0x11/0x20
[  319.162422]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.167700]  ? rcu_softirq_qs+0x20/0x20
[  319.171696]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.177229]  ? oom_evaluate_task+0x302/0x540
[  319.181649]  out_of_memory+0xa84/0x1430
[  319.185629]  ? oom_killer_disable+0x3a0/0x3a0
[  319.190124]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  319.195055]  ? __ww_mutex_check_waiters+0x160/0x160
[  319.200078]  __alloc_pages_slowpath+0x2354/0x2e10
[  319.204963]  ? warn_alloc+0x120/0x120
[  319.208770]  ? mark_held_locks+0x130/0x130
[  319.213007]  ? find_get_entry+0xaae/0x1120
[  319.217261]  ? filemap_map_pages+0x1a20/0x1a20
[  319.221839]  ? zap_class+0x640/0x640
[  319.225558]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  319.231104]  ? check_preemption_disabled+0x48/0x280
[  319.236127]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.241654]  ? should_fail+0x22d/0xd01
[  319.245571]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  319.251048]  ? zap_class+0x640/0x640
[  319.254790]  ? __lock_is_held+0xb5/0x140
[  319.258851]  ? mark_held_locks+0x130/0x130
[  319.263081]  ? lock_release+0xa00/0xa00
[  319.267048]  ? perf_trace_sched_process_exec+0x860/0x860
[  319.272491]  ? xa_load+0x2ba/0x460
[  319.276027]  ? lock_downgrade+0x900/0x900
[  319.280188]  ? __might_sleep+0x95/0x190
[  319.284160]  __alloc_pages_nodemask+0xa80/0xde0
[  319.288843]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  319.293855]  ? __page_cache_alloc+0x191/0x5c0
[  319.298348]  ? xa_load+0x2e1/0x460
[  319.301897]  ? xa_clear_mark+0x40/0x40
[  319.305786]  ? zap_class+0x640/0x640
[  319.309509]  ? zap_class+0x640/0x640
[  319.313236]  ? zap_class+0x640/0x640
[  319.316964]  ? __do_page_cache_readahead+0x663/0x810
[  319.322070]  ? find_held_lock+0x36/0x1c0
[  319.326138]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  319.331678]  alloc_pages_current+0x173/0x350
[  319.336091]  __page_cache_alloc+0x38c/0x5c0
[  319.340410]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.345355]  ? kasan_check_read+0x11/0x20
[  319.349497]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.354772]  ? generic_perform_write+0x6a0/0x6a0
[  319.359527]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.365061]  ? check_preemption_disabled+0x48/0x280
[  319.370077]  filemap_fault+0x1595/0x25f0
[  319.374147]  ? __lock_page_or_retry+0xa00/0xa00
[  319.378813]  ? mark_held_locks+0x130/0x130
[  319.383065]  ? filemap_map_pages+0xd6b/0x1a20
[  319.387591]  ? lock_downgrade+0x900/0x900
[  319.391759]  ? check_preemption_disabled+0x48/0x280
[  319.396773]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.401702]  ? kasan_check_read+0x11/0x20
[  319.405842]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.411111]  ? rcu_softirq_qs+0x20/0x20
[  319.415090]  ? filemap_map_pages+0xd92/0x1a20
[  319.419587]  ? print_usage_bug+0xc0/0xc0
[  319.423667]  ? find_get_entries_tag+0x1400/0x1400
[  319.428526]  ? __kasan_slab_free+0x102/0x150
[  319.432928]  ? kasan_slab_free+0xe/0x10
[  319.436904]  ? kmem_cache_free+0x83/0x290
[  319.441049]  ? __sigqueue_free.part.29+0x74/0x90
[  319.445815]  ? lock_acquire+0x1ed/0x520
[  319.449785]  ? ext4_filemap_fault+0x7a/0xad
[  319.454106]  ? lock_release+0xa00/0xa00
[  319.458078]  ? perf_trace_sched_process_exec+0x860/0x860
[  319.463530]  ? print_usage_bug+0xc0/0xc0
[  319.467619]  ? print_usage_bug+0xc0/0xc0
[  319.471695]  ? down_read+0x8d/0x120
[  319.475315]  ? ext4_filemap_fault+0x7a/0xad
[  319.479635]  ? __down_interruptible+0x700/0x700
[  319.484376]  ext4_filemap_fault+0x82/0xad
[  319.488538]  __do_fault+0x100/0x6b0
[  319.492161]  ? pmd_devmap_trans_unstable+0x220/0x220
[  319.497278]  ? mark_held_locks+0x130/0x130
[  319.501524]  ? mark_held_locks+0x130/0x130
[  319.505756]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  319.511287]  ? rcu_pm_notify+0xc0/0xc0
[  319.515177]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.520761]  __handle_mm_fault+0x3ea0/0x5be0
[  319.525185]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  319.530025]  ? _raw_spin_unlock_irq+0x27/0x80
[  319.534512]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  319.539086]  ? trace_hardirqs_on+0xbd/0x310
[  319.543399]  ? kasan_check_read+0x11/0x20
[  319.547550]  ? __set_current_blocked+0xdf/0x120
[  319.552227]  ? trace_hardirqs_off_caller+0x310/0x310
[  319.557333]  ? zap_class+0x640/0x640
[  319.561040]  ? zap_class+0x640/0x640
[  319.564765]  ? find_held_lock+0x36/0x1c0
[  319.568837]  ? handle_mm_fault+0x42a/0xc70
[  319.573066]  ? lock_downgrade+0x900/0x900
[  319.577219]  ? check_preemption_disabled+0x48/0x280
[  319.582231]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.587149]  ? kasan_check_read+0x11/0x20
[  319.591290]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.596581]  ? rcu_softirq_qs+0x20/0x20
[  319.600550]  ? trace_hardirqs_off_caller+0x310/0x310
[  319.605657]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.611200]  ? check_preemption_disabled+0x48/0x280
[  319.616222]  handle_mm_fault+0x54f/0xc70
[  319.620307]  ? __handle_mm_fault+0x5be0/0x5be0
[  319.624924]  ? find_vma+0x34/0x190
[  319.628470]  __do_page_fault+0x5e8/0xe60
[  319.632535]  ? exit_to_usermode_loop+0x1f4/0x380
[  319.637329]  do_page_fault+0xf2/0x7e0
[  319.641133]  ? vmalloc_sync_all+0x30/0x30
[  319.645299]  ? error_entry+0x70/0xd0
[  319.649017]  ? trace_hardirqs_off_caller+0xbb/0x310
[  319.654033]  ? trace_hardirqs_on_caller+0xc0/0x310
[  319.658962]  ? syscall_return_slowpath+0x5e0/0x5e0
[  319.663897]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  319.668743]  ? trace_hardirqs_on_caller+0x310/0x310
[  319.673776]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  319.679234]  ? prepare_exit_to_usermode+0x291/0x3b0
[  319.684277]  ? page_fault+0x8/0x30
[  319.687827]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  319.692690]  ? page_fault+0x8/0x30
[  319.696231]  page_fault+0x1e/0x30
[  319.699705] RIP: 0033:0x45db60
[  319.702915] Code: Bad RIP value.
[  319.706293] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  319.711651] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  319.718919] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  319.726180] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  319.733448] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  319.740724] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  319.748202] warn_alloc_show_mem: 1 callbacks suppressed
[  319.748229] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  319.748230] Mem-Info:
[  319.748276] active_anon:54051 inactive_anon:192 isolated_anon:0
[  319.748276]  active_file:9 inactive_file:20 isolated_file:0
[  319.748276]  unevictable:0 dirty:0 writeback:0 unstable:0
[  319.748276]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  319.748276]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  319.748276]  free:13735 free_pcp:540 free_cma:0
[  319.753606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  319.760876] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  319.763301] Call Trace:
[  319.796089] 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
[  319.805439]  <IRQ>
[  319.832828] lowmem_reserve[]: 0 2818 6321 6321
[  319.835405]  dump_stack+0x244/0x39d
[  319.861483] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  319.863633]  ? dump_stack_print_info.cold.1+0x20/0x20
[  319.868208] lowmem_reserve[]: 0 0 3503 3503
[  319.871851]  warn_alloc.cold.116+0xb7/0x1bd
[  319.900036] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  319.905232]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  319.909523] lowmem_reserve[]: 0 0 0 0
[  319.913834]  ? lock_downgrade+0x900/0x900
[  319.942863] 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
[  319.947698]  ? trace_hardirqs_off+0xb8/0x310
[  319.951469] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  319.955606]  ? trace_hardirqs_off+0xb8/0x310
[  319.969097] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  319.973511]  __alloc_pages_slowpath+0x26e8/0x2e10
[  319.988746] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  319.993157]  ? warn_alloc+0x120/0x120
[  320.007249] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  320.012073]  ? print_usage_bug+0xc0/0xc0
[  320.020880] 273 total pagecache pages
[  320.024678]  ? warn_alloc+0x120/0x120
[  320.033237] 0 pages in swap cache
[  320.037279]  ? warn_alloc+0x120/0x120
[  320.041057] Swap cache stats: add 0, delete 0, find 0/0
[  320.044841]  ? print_usage_bug+0xc0/0xc0
[  320.048266] Free swap  = 0kB
[  320.052058]  ? kvm_clock_read+0x18/0x30
[  320.057393] Total swap = 0kB
[  320.061447]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  320.064437] 1965979 pages RAM
[  320.068419]  ? print_usage_bug+0xc0/0xc0
[  320.071425] 0 pages HighMem/MovableOnly
[  320.076441]  ? __lock_acquire+0x62f/0x4c20
[  320.079518] 342853 pages reserved
[  320.083615]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  320.087679] 0 pages cma reserved
[  320.091911]  ? should_fail+0x22d/0xd01
[  320.095408] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  320.100851]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  320.100868]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  320.104324] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  320.108109]  ? __lock_acquire+0x62f/0x4c20
[  320.114574] syz-fuzzer cpuset=/ mems_allowed=0
[  320.119841]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  320.149019]  ? __lock_acquire+0x62f/0x4c20
[  320.153246]  ? should_fail+0x22d/0xd01
[  320.157130]  ? rcu_irq_exit+0x1a2/0x390
[  320.161121]  ? mark_held_locks+0x130/0x130
[  320.165359]  ? mark_held_locks+0x130/0x130
[  320.169603]  ? mark_held_locks+0xc7/0x130
[  320.173754]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  320.178785]  ? zap_class+0x640/0x640
[  320.182514]  ? print_usage_bug+0xc0/0xc0
[  320.186603]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.192145]  ? check_preemption_disabled+0x48/0x280
[  320.197200]  ? __lock_is_held+0xb5/0x140
[  320.201301]  __alloc_pages_nodemask+0xa80/0xde0
[  320.205975]  ? zap_class+0x640/0x640
[  320.209697]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  320.214722]  ? find_held_lock+0x36/0x1c0
[  320.218786]  ? ____cache_alloc_node+0x1c7/0x1e0
[  320.223455]  ? lock_downgrade+0x900/0x900
[  320.227611]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.233154]  cache_grow_begin+0xa5/0x8c0
[  320.237221]  ? do_raw_spin_unlock+0xa7/0x330
[  320.241641]  fallback_alloc+0x204/0x2e0
[  320.245622]  ____cache_alloc_node+0x1c7/0x1e0
[  320.250123]  kmem_cache_alloc_node+0xe3/0x730
[  320.254618]  ? ipv6_get_ifaddr+0x42e/0x620
[  320.258864]  __alloc_skb+0x119/0x770
[  320.262590]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  320.267869]  ? netdev_alloc_frag+0x1f0/0x1f0
[  320.272300]  ? lock_downgrade+0x900/0x900
[  320.276456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.281994]  ? refcount_sub_and_test_checked+0x203/0x310
[  320.287457]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  320.292917]  ? addrconf_rs_timer+0x690/0x690
[  320.297356]  ndisc_alloc_skb+0x144/0x340
[  320.301424]  ndisc_send_rs+0x331/0x6e0
[  320.305316]  addrconf_rs_timer+0x314/0x690
[  320.309555]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.313803]  call_timer_fn+0x272/0x920
[  320.317691]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.321930]  ? process_timeout+0x40/0x40
[  320.325999]  ? __run_timers+0x7da/0xc70
[  320.329974]  ? _raw_spin_unlock_irq+0x27/0x80
[  320.334466]  ? _raw_spin_unlock_irq+0x27/0x80
[  320.338958]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.343198]  ? lockdep_hardirqs_on+0x296/0x5b0
[  320.347801]  ? trace_hardirqs_on+0xbd/0x310
[  320.352123]  ? kasan_check_read+0x11/0x20
[  320.356269]  ? __run_timers+0x7da/0xc70
[  320.360244]  ? trace_hardirqs_off_caller+0x310/0x310
[  320.365351]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.369601]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.373827]  __run_timers+0x7e5/0xc70
[  320.377646]  ? timer_fixup_init+0x70/0x70
[  320.381789]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  320.386807]  ? zap_class+0x640/0x640
[  320.390539]  ? enqueue_hrtimer+0x1a5/0x560
[  320.394786]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  320.399978]  ? find_held_lock+0x36/0x1c0
[  320.404043]  ? zap_class+0x640/0x640
[  320.407759]  ? pvclock_read_flags+0x160/0x160
[  320.412254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.417789]  ? check_preemption_disabled+0x48/0x280
[  320.422818]  ? __lock_is_held+0xb5/0x140
[  320.426874]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.432426]  ? check_preemption_disabled+0x48/0x280
[  320.437458]  run_timer_softirq+0x52/0xb0
[  320.441513]  ? rcu_read_lock_sched_held+0x14f/0x180
[  320.446525]  __do_softirq+0x308/0xb7e
[  320.450320]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  320.454820]  ? lock_downgrade+0x900/0x900
[  320.458975]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  320.464098]  ? pvclock_read_flags+0x160/0x160
[  320.468598]  ? lapic_next_event+0x5a/0x90
[  320.472745]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.478281]  ? kvm_clock_read+0x18/0x30
[  320.482248]  ? kvm_sched_clock_read+0x9/0x20
[  320.486682]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.492221]  ? check_preemption_disabled+0x48/0x280
[  320.497240]  irq_exit+0x17f/0x1c0
[  320.500701]  smp_apic_timer_interrupt+0x1cb/0x760
[  320.505547]  ? smp_reschedule_interrupt+0x109/0x650
[  320.510587]  ? smp_call_function_single_interrupt+0x650/0x650
[  320.516470]  ? interrupt_entry+0xb5/0xc0
[  320.520542]  ? trace_hardirqs_off_caller+0xbb/0x310
[  320.525553]  ? trace_hardirqs_off_caller+0xbb/0x310
[  320.530563]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  320.535417]  ? trace_hardirqs_on_caller+0x310/0x310
[  320.540432]  ? trace_hardirqs_on_caller+0x310/0x310
[  320.545454]  ? task_prio+0x50/0x50
[  320.548995]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.554586]  ? check_preemption_disabled+0x48/0x280
[  320.559634]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  320.564483]  apic_timer_interrupt+0xf/0x20
[  320.568708]  </IRQ>
[  320.570952] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  320.575884] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  320.594803] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  320.602506] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  320.609770] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  320.617038] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  320.624302] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  320.631587] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  320.638911]  skb_clone+0x1bb/0x500
[  320.642455]  ? finish_task_switch+0x2f4/0x910
[  320.646951]  ? skb_split+0x11e0/0x11e0
[  320.650857]  ? preempt_notifier_register+0x200/0x200
[  320.655978]  ? __switch_to_asm+0x34/0x70
[  320.660050]  ? __switch_to_asm+0x34/0x70
[  320.664110]  ? __switch_to_asm+0x40/0x70
[  320.668171]  ? __switch_to_asm+0x34/0x70
[  320.672231]  ? __switch_to_asm+0x40/0x70
[  320.676288]  ? __switch_to_asm+0x34/0x70
[  320.680344]  ? __switch_to_asm+0x40/0x70
[  320.684401]  ? __switch_to_asm+0x34/0x70
[  320.688459]  ? __switch_to_asm+0x34/0x70
[  320.692520]  ? __switch_to_asm+0x40/0x70
[  320.696577]  ? __switch_to_asm+0x34/0x70
[  320.700645]  bpf_clone_redirect+0xb9/0x490
[  320.704905]  ? __schedule+0x8d7/0x21d0
[  320.708800]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  320.713818]  ? __sched_text_start+0x8/0x8
[  320.717967]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  320.722731]  ? find_held_lock+0x36/0x1c0
[  320.726796]  ? lock_acquire+0x1ed/0x520
[  320.730771]  ? bpf_test_run+0x3cb/0x780
[  320.734745]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.740281]  ? check_preemption_disabled+0x48/0x280
[  320.745509]  ? kasan_check_read+0x11/0x20
[  320.749687]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  320.754966]  ? rcu_softirq_qs+0x20/0x20
[  320.758939]  ? preempt_schedule+0x4d/0x60
[  320.763085]  ? ___preempt_schedule+0x16/0x18
[  320.767544]  ? bpf_test_run+0x25d/0x780
[  320.771562]  ? netlink_diag_dump+0x2a0/0x2a0
[  320.775991]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  320.781561]  ? bpf_test_init.isra.10+0x70/0x100
[  320.786232]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  320.791008]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  320.795848]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  320.801380]  ? fput+0x130/0x1a0
[  320.804655]  ? __bpf_prog_get+0x9b/0x290
[  320.808718]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  320.813561]  ? bpf_prog_test_run+0x130/0x1a0
[  320.817974]  ? __x64_sys_bpf+0x3d8/0x520
[  320.822035]  ? bpf_prog_get+0x20/0x20
[  320.825858]  ? do_syscall_64+0x1b9/0x820
[  320.829930]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  320.835327]  ? syscall_return_slowpath+0x5e0/0x5e0
[  320.840259]  ? trace_hardirqs_on_caller+0x310/0x310
[  320.845275]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  320.850292]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  320.856957]  ? __switch_to_asm+0x40/0x70
[  320.861012]  ? __switch_to_asm+0x34/0x70
[  320.865079]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  320.869937]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  320.875318] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  320.875404] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  320.882333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  320.882338] Call Trace:
[  320.882345]  <IRQ>
[  320.882362]  dump_stack+0x244/0x39d
[  320.882380]  ? dump_stack_print_info.cold.1+0x20/0x20
[  320.888945] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  320.898238]  warn_alloc.cold.116+0xb7/0x1bd
[  320.900792] syz-executor3 cpuset=syz3 mems_allowed=0
[  320.902939]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  320.936437]  ? lock_downgrade+0x900/0x900
[  320.940595]  ? trace_hardirqs_off+0xb8/0x310
[  320.945007]  ? trace_hardirqs_off+0xb8/0x310
[  320.949432]  __alloc_pages_slowpath+0x26e8/0x2e10
[  320.954311]  ? warn_alloc+0x120/0x120
[  320.958111]  ? print_usage_bug+0xc0/0xc0
[  320.962167]  ? warn_alloc+0x120/0x120
[  320.965981]  ? warn_alloc+0x120/0x120
[  320.969786]  ? print_usage_bug+0xc0/0xc0
[  320.973862]  ? kvm_clock_read+0x18/0x30
[  320.977839]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  320.982851]  ? print_usage_bug+0xc0/0xc0
[  320.986916]  ? __lock_acquire+0x62f/0x4c20
[  320.991155]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  320.996695]  ? should_fail+0x22d/0xd01
[  321.000578]  ? __lock_acquire+0x62f/0x4c20
[  321.004837]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  321.009936]  ? __lock_acquire+0x62f/0x4c20
[  321.014187]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  321.019291]  ? __lock_acquire+0x62f/0x4c20
[  321.023544]  ? should_fail+0x22d/0xd01
[  321.027441]  ? mark_held_locks+0x130/0x130
[  321.031683]  ? mark_held_locks+0x130/0x130
[  321.035930]  ? zap_class+0x640/0x640
[  321.039643]  ? print_usage_bug+0xc0/0xc0
[  321.043709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.049253]  ? check_preemption_disabled+0x48/0x280
[  321.054277]  ? __lock_is_held+0xb5/0x140
[  321.058347]  __alloc_pages_nodemask+0xa80/0xde0
[  321.063018]  ? zap_class+0x640/0x640
[  321.066750]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  321.071777]  ? find_held_lock+0x36/0x1c0
[  321.075848]  ? ____cache_alloc_node+0x1c7/0x1e0
[  321.080518]  ? lock_downgrade+0x900/0x900
[  321.084672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.090214]  cache_grow_begin+0xa5/0x8c0
[  321.094273]  ? do_raw_spin_unlock+0xa7/0x330
[  321.098707]  fallback_alloc+0x204/0x2e0
[  321.102689]  ____cache_alloc_node+0x1c7/0x1e0
[  321.107203]  kmem_cache_alloc_node+0xe3/0x730
[  321.111702]  ? ipv6_get_ifaddr+0x42e/0x620
[  321.115946]  __alloc_skb+0x119/0x770
[  321.119671]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.124957]  ? netdev_alloc_frag+0x1f0/0x1f0
[  321.129378]  ? lock_downgrade+0x900/0x900
[  321.133537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.139079]  ? refcount_sub_and_test_checked+0x203/0x310
[  321.144536]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  321.149987]  ? addrconf_rs_timer+0x690/0x690
[  321.154407]  ndisc_alloc_skb+0x144/0x340
[  321.158473]  ndisc_send_rs+0x331/0x6e0
[  321.162400]  addrconf_rs_timer+0x314/0x690
[  321.166643]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  321.170914]  call_timer_fn+0x272/0x920
[  321.174817]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  321.179053]  ? process_timeout+0x40/0x40
[  321.183125]  ? mark_held_locks+0xc7/0x130
[  321.187278]  ? _raw_spin_unlock_irq+0x27/0x80
[  321.191772]  ? _raw_spin_unlock_irq+0x27/0x80
[  321.196267]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  321.200504]  ? lockdep_hardirqs_on+0x296/0x5b0
[  321.205087]  ? trace_hardirqs_on+0xbd/0x310
[  321.209409]  ? kasan_check_read+0x11/0x20
[  321.213554]  ? __run_timers+0x7da/0xc70
[  321.217548]  ? trace_hardirqs_off_caller+0x310/0x310
[  321.222653]  ? prandom_seed_full_state+0x3b0/0x3b0
[  321.227600]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  321.231851]  __run_timers+0x7e5/0xc70
[  321.235683]  ? timer_fixup_init+0x70/0x70
[  321.239852]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  321.244871]  ? zap_class+0x640/0x640
[  321.248616]  ? print_usage_bug+0xc0/0xc0
[  321.252679]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  321.257902]  ? find_held_lock+0x36/0x1c0
[  321.261971]  ? zap_class+0x640/0x640
[  321.265693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.271236]  ? check_preemption_disabled+0x48/0x280
[  321.276278]  ? __lock_is_held+0xb5/0x140
[  321.280345]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.285904]  ? check_preemption_disabled+0x48/0x280
[  321.290932]  run_timer_softirq+0x52/0xb0
[  321.294994]  ? rcu_read_lock_sched_held+0x14f/0x180
[  321.300011]  __do_softirq+0x308/0xb7e
[  321.303814]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  321.308337]  ? lock_downgrade+0x900/0x900
[  321.312494]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  321.317605]  ? pvclock_read_flags+0x160/0x160
[  321.322106]  ? lapic_next_event+0x5a/0x90
[  321.326258]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.331804]  ? kvm_clock_read+0x18/0x30
[  321.335784]  ? kvm_sched_clock_read+0x9/0x20
[  321.340219]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.345759]  ? check_preemption_disabled+0x48/0x280
[  321.350796]  irq_exit+0x17f/0x1c0
[  321.354248]  smp_apic_timer_interrupt+0x1cb/0x760
[  321.359091]  ? smp_reschedule_interrupt+0x109/0x650
[  321.364106]  ? smp_call_function_single_interrupt+0x650/0x650
[  321.369986]  ? interrupt_entry+0xb5/0xc0
[  321.374048]  ? trace_hardirqs_off_caller+0xbb/0x310
[  321.379093]  ? trace_hardirqs_off_caller+0xbb/0x310
[  321.384109]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  321.388967]  ? trace_hardirqs_on_caller+0x310/0x310
[  321.393981]  ? trace_hardirqs_on_caller+0x310/0x310
[  321.399005]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  321.403849]  apic_timer_interrupt+0xf/0x20
[  321.408078]  </IRQ>
[  321.410317] RIP: 0010:dump_stack+0x358/0x39d
[  321.414759] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  321.433656] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  321.441368] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  321.448634] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  321.455905] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  321.463173] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  321.470439] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  321.477728]  ? dump_stack+0x34f/0x39d
[  321.481544]  ? dump_stack_print_info.cold.1+0x20/0x20
[  321.486738]  ? mark_held_locks+0x130/0x130
[  321.490972]  ? mark_held_locks+0x130/0x130
[  321.495216]  dump_header+0x27b/0xf72
[  321.498945]  ? pagefault_out_of_memory+0x197/0x197
[  321.503888]  ? __lock_acquire+0x62f/0x4c20
[  321.508135]  ? percpu_ref_get_many+0x240/0x240
[  321.512724]  ? print_usage_bug+0xc0/0xc0
[  321.516794]  ? zap_class+0x640/0x640
[  321.520515]  ? print_usage_bug+0xc0/0xc0
[  321.524578]  ? print_usage_bug+0xc0/0xc0
[  321.528645]  ? zap_class+0x640/0x640
[  321.532364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.537914]  ? find_held_lock+0x36/0x1c0
[  321.541984]  ? mark_held_locks+0xc7/0x130
[  321.546137]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  321.551243]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  321.556353]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  321.560940]  ? trace_hardirqs_on+0xbd/0x310
[  321.565263]  ? kasan_check_read+0x11/0x20
[  321.569410]  ? ___ratelimit+0x3b4/0x672
[  321.573388]  ? trace_hardirqs_off_caller+0x310/0x310
[  321.578512]  ? trace_hardirqs_on+0x310/0x310
[  321.582930]  ? lock_downgrade+0x900/0x900
[  321.587084]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  321.592187]  ? ___ratelimit+0x3b9/0x672
[  321.596170]  ? idr_get_free+0xf70/0xf70
[  321.600142]  ? find_held_lock+0x36/0x1c0
[  321.604256]  oom_kill_process.cold.27+0x10/0x903
[  321.609009]  ? zap_class+0x640/0x640
[  321.612741]  ? check_preemption_disabled+0x48/0x280
[  321.617774]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.622704]  ? kasan_check_read+0x11/0x20
[  321.626869]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.632156]  ? oom_evaluate_task+0x540/0x540
[  321.636565]  ? find_held_lock+0x36/0x1c0
[  321.640632]  ? out_of_memory+0x974/0x1430
[  321.644781]  ? lock_downgrade+0x900/0x900
[  321.648926]  ? check_preemption_disabled+0x48/0x280
[  321.653954]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.658882]  ? kasan_check_read+0x11/0x20
[  321.663050]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.668344]  ? rcu_softirq_qs+0x20/0x20
[  321.672342]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.677879]  ? oom_evaluate_task+0x302/0x540
[  321.682299]  out_of_memory+0xa84/0x1430
[  321.686285]  ? oom_killer_disable+0x3a0/0x3a0
[  321.690781]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  321.695718]  ? __ww_mutex_check_waiters+0x160/0x160
[  321.700746]  __alloc_pages_slowpath+0x2354/0x2e10
[  321.705644]  ? warn_alloc+0x120/0x120
[  321.709446]  ? mark_held_locks+0x130/0x130
[  321.713692]  ? find_get_entry+0xaae/0x1120
[  321.717937]  ? filemap_map_pages+0x1a20/0x1a20
[  321.722524]  ? zap_class+0x640/0x640
[  321.726243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.731798]  ? check_preemption_disabled+0x48/0x280
[  321.736815]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.742488]  ? should_fail+0x22d/0xd01
[  321.746386]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  321.751495]  ? zap_class+0x640/0x640
[  321.755234]  ? __lock_is_held+0xb5/0x140
[  321.759306]  ? mark_held_locks+0x130/0x130
[  321.763547]  ? lock_release+0xa00/0xa00
[  321.767524]  ? perf_trace_sched_process_exec+0x860/0x860
[  321.772975]  ? xa_load+0x2ba/0x460
[  321.776515]  ? lock_downgrade+0x900/0x900
[  321.780668]  ? __might_sleep+0x95/0x190
[  321.784663]  __alloc_pages_nodemask+0xa80/0xde0
[  321.789349]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  321.794378]  ? __page_cache_alloc+0x191/0x5c0
[  321.798871]  ? xa_load+0x2e1/0x460
[  321.802432]  ? xa_clear_mark+0x40/0x40
[  321.806339]  ? zap_class+0x640/0x640
[  321.810063]  ? zap_class+0x640/0x640
[  321.813792]  ? zap_class+0x640/0x640
[  321.817504]  ? __do_page_cache_readahead+0x663/0x810
[  321.822656]  ? find_held_lock+0x36/0x1c0
[  321.826740]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  321.832287]  alloc_pages_current+0x173/0x350
[  321.836703]  __page_cache_alloc+0x38c/0x5c0
[  321.841024]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.845949]  ? kasan_check_read+0x11/0x20
[  321.850094]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.855437]  ? generic_perform_write+0x6a0/0x6a0
[  321.860211]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.865751]  ? check_preemption_disabled+0x48/0x280
[  321.870787]  filemap_fault+0x1595/0x25f0
[  321.875551]  ? __lock_page_or_retry+0xa00/0xa00
[  321.880221]  ? mark_held_locks+0x130/0x130
[  321.884466]  ? filemap_map_pages+0xd6b/0x1a20
[  321.888977]  ? lock_downgrade+0x900/0x900
[  321.893128]  ? check_preemption_disabled+0x48/0x280
[  321.898149]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.903080]  ? kasan_check_read+0x11/0x20
[  321.907225]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.912505]  ? rcu_softirq_qs+0x20/0x20
[  321.916506]  ? filemap_map_pages+0xd92/0x1a20
[  321.921041]  ? print_usage_bug+0xc0/0xc0
[  321.925105]  ? find_get_entries_tag+0x1400/0x1400
[  321.929944]  ? __kasan_slab_free+0x102/0x150
[  321.934352]  ? kasan_slab_free+0xe/0x10
[  321.938358]  ? kmem_cache_free+0x83/0x290
[  321.942506]  ? __sigqueue_free.part.29+0x74/0x90
[  321.947308]  ? lock_acquire+0x1ed/0x520
[  321.951287]  ? ext4_filemap_fault+0x7a/0xad
[  321.955611]  ? lock_release+0xa00/0xa00
[  321.959585]  ? perf_trace_sched_process_exec+0x860/0x860
[  321.965032]  ? print_usage_bug+0xc0/0xc0
[  321.969097]  ? print_usage_bug+0xc0/0xc0
[  321.973169]  ? down_read+0x8d/0x120
[  321.976794]  ? ext4_filemap_fault+0x7a/0xad
[  321.981115]  ? __down_interruptible+0x700/0x700
[  321.985792]  ext4_filemap_fault+0x82/0xad
[  321.990444]  __do_fault+0x100/0x6b0
[  321.994079]  ? pmd_devmap_trans_unstable+0x220/0x220
[  321.999183]  ? mark_held_locks+0x130/0x130
[  322.003419]  ? mark_held_locks+0x130/0x130
[  322.007658]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  322.013202]  ? rcu_pm_notify+0xc0/0xc0
[  322.017098]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  322.022638]  __handle_mm_fault+0x3ea0/0x5be0
[  322.027073]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  322.031930]  ? _raw_spin_unlock_irq+0x27/0x80
[  322.036443]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  322.041027]  ? trace_hardirqs_on+0xbd/0x310
[  322.045360]  ? kasan_check_read+0x11/0x20
[  322.049526]  ? __set_current_blocked+0xdf/0x120
[  322.054196]  ? trace_hardirqs_off_caller+0x310/0x310
[  322.059307]  ? zap_class+0x640/0x640
[  322.063021]  ? zap_class+0x640/0x640
[  322.066762]  ? find_held_lock+0x36/0x1c0
[  322.070830]  ? handle_mm_fault+0x42a/0xc70
[  322.075065]  ? lock_downgrade+0x900/0x900
[  322.079228]  ? check_preemption_disabled+0x48/0x280
[  322.084247]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  322.089176]  ? kasan_check_read+0x11/0x20
[  322.093736]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  322.099019]  ? rcu_softirq_qs+0x20/0x20
[  322.102995]  ? trace_hardirqs_off_caller+0x310/0x310
[  322.108097]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  322.113636]  ? check_preemption_disabled+0x48/0x280
[  322.118656]  handle_mm_fault+0x54f/0xc70
[  322.122723]  ? __handle_mm_fault+0x5be0/0x5be0
[  322.127311]  ? find_vma+0x34/0x190
[  322.130871]  __do_page_fault+0x5e8/0xe60
[  322.134956]  ? exit_to_usermode_loop+0x1f4/0x380
[  322.139822]  do_page_fault+0xf2/0x7e0
[  322.143626]  ? vmalloc_sync_all+0x30/0x30
[  322.147775]  ? error_entry+0x70/0xd0
[  322.151490]  ? trace_hardirqs_off_caller+0xbb/0x310
[  322.156504]  ? trace_hardirqs_on_caller+0xc0/0x310
[  322.161447]  ? syscall_return_slowpath+0x5e0/0x5e0
[  322.166391]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  322.171237]  ? trace_hardirqs_on_caller+0x310/0x310
[  322.176252]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  322.181713]  ? prepare_exit_to_usermode+0x291/0x3b0
[  322.186729]  ? page_fault+0x8/0x30
[  322.190277]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  322.195122]  ? page_fault+0x8/0x30
[  322.198661]  page_fault+0x1e/0x30
[  322.202118] RIP: 0033:0x45db60
[  322.205321] Code: Bad RIP value.
[  322.208699] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  322.214061] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  322.221331] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  322.228597] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  322.235862] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  322.243138] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  322.250431] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  322.250436] warn_alloc_show_mem: 1 callbacks suppressed
[  322.250444] Mem-Info:
[  322.257715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  322.263098] active_anon:54051 inactive_anon:192 isolated_anon:0
[  322.263098]  active_file:9 inactive_file:20 isolated_file:0
[  322.263098]  unevictable:0 dirty:0 writeback:0 unstable:0
[  322.263098]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  322.263098]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  322.263098]  free:13735 free_pcp:540 free_cma:0
[  322.265488] Call Trace:
[  322.274899] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  322.307670]  <IRQ>
[  322.310244] 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
[  322.337675]  dump_stack+0x244/0x39d
[  322.339801] lowmem_reserve[]: 0 2818 6321 6321
[  322.365925]  ? dump_stack_print_info.cold.1+0x20/0x20
[  322.369530] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  322.374112]  warn_alloc.cold.116+0xb7/0x1bd
[  322.379270] lowmem_reserve[]: 0 0 3503 3503
[  322.407066]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  322.411361] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  322.415677]  ? lock_downgrade+0x900/0x900
[  322.420496] lowmem_reserve[]: 0 0 0 0
[  322.449556]  ? trace_hardirqs_off+0xb8/0x310
[  322.453679] 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
[  322.457474]  ? trace_hardirqs_off+0xb8/0x310
[  322.461855] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  322.475465]  __alloc_pages_slowpath+0x26e8/0x2e10
[  322.479843] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  322.495151]  ? warn_alloc+0x120/0x120
[  322.499952] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  322.514092]  ? print_usage_bug+0xc0/0xc0
[  322.517873] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  322.526705]  ? warn_alloc+0x120/0x120
[  322.530741] 273 total pagecache pages
[  322.539333]  ? warn_alloc+0x120/0x120
[  322.543117] 0 pages in swap cache
[  322.546909]  ? print_usage_bug+0xc0/0xc0
[  322.550694] Swap cache stats: add 0, delete 0, find 0/0
[  322.554134]  ? print_usage_bug+0xc0/0xc0
[  322.558169] Free swap  = 0kB
[  322.563525]  ? __lock_acquire+0x62f/0x4c20
[  322.567558] Total swap = 0kB
[  322.570600]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  322.574805] 1965979 pages RAM
[  322.577817]  ? should_fail+0x22d/0xd01
[  322.583326] 0 pages HighMem/MovableOnly
[  322.586428]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  322.590288] 342853 pages reserved
[  322.594254]  ? __lock_acquire+0x62f/0x4c20
[  322.599330] 0 pages cma reserved
[  322.602791]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  322.607088] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  322.610351]  ? __lock_acquire+0x62f/0x4c20
[  322.610368]  ? should_fail+0x22d/0xd01
[  322.615540] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  322.621939]  ? find_held_lock+0x36/0x1c0
[  322.626152] syz-fuzzer cpuset=/ mems_allowed=0
[  322.630068]  ? mark_held_locks+0x130/0x130
[  322.653166]  ? mark_held_locks+0x130/0x130
[  322.657406]  ? zap_class+0x640/0x640
[  322.661128]  ? zap_class+0x640/0x640
[  322.664861]  ? print_usage_bug+0xc0/0xc0
[  322.668928]  ? do_raw_spin_unlock+0xa7/0x330
[  322.673339]  ? zap_class+0x640/0x640
[  322.677057]  ? print_usage_bug+0xc0/0xc0
[  322.681117]  ? wq_watchdog_touch+0x9c/0xfe
[  322.685357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.690903]  ? check_preemption_disabled+0x48/0x280
[  322.695940]  ? __lock_is_held+0xb5/0x140
[  322.700010]  __alloc_pages_nodemask+0xa80/0xde0
[  322.704702]  ? zap_class+0x640/0x640
[  322.708424]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  322.713450]  ? find_held_lock+0x36/0x1c0
[  322.717525]  ? ____cache_alloc_node+0x1c7/0x1e0
[  322.722200]  ? lock_downgrade+0x900/0x900
[  322.726359]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.731923]  cache_grow_begin+0xa5/0x8c0
[  322.735984]  ? do_raw_spin_unlock+0xa7/0x330
[  322.740402]  fallback_alloc+0x204/0x2e0
[  322.744384]  ____cache_alloc_node+0x1c7/0x1e0
[  322.748926]  kmem_cache_alloc_node+0xe3/0x730
[  322.753431]  ? ipv6_get_ifaddr+0x42e/0x620
[  322.757677]  __alloc_skb+0x119/0x770
[  322.761395]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  322.766675]  ? netdev_alloc_frag+0x1f0/0x1f0
[  322.771095]  ? lock_downgrade+0x900/0x900
[  322.775252]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.780785]  ? refcount_sub_and_test_checked+0x203/0x310
[  322.786243]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  322.791719]  ? addrconf_rs_timer+0x690/0x690
[  322.796139]  ndisc_alloc_skb+0x144/0x340
[  322.800210]  ndisc_send_rs+0x331/0x6e0
[  322.804117]  addrconf_rs_timer+0x314/0x690
[  322.808358]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.812602]  call_timer_fn+0x272/0x920
[  322.816489]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.820722]  ? process_timeout+0x40/0x40
[  322.824791]  ? __run_timers+0x7da/0xc70
[  322.828769]  ? _raw_spin_unlock_irq+0x27/0x80
[  322.833267]  ? _raw_spin_unlock_irq+0x27/0x80
[  322.837762]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.842002]  ? lockdep_hardirqs_on+0x296/0x5b0
[  322.846584]  ? trace_hardirqs_on+0xbd/0x310
[  322.850916]  ? kasan_check_read+0x11/0x20
[  322.855062]  ? __run_timers+0x7da/0xc70
[  322.859037]  ? trace_hardirqs_off_caller+0x310/0x310
[  322.864143]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.868383]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.872617]  __run_timers+0x7e5/0xc70
[  322.876427]  ? timer_fixup_init+0x70/0x70
[  322.880596]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  322.885618]  ? zap_class+0x640/0x640
[  322.889333]  ? enqueue_hrtimer+0x1a5/0x560
[  322.893570]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  322.898778]  ? find_held_lock+0x36/0x1c0
[  322.902845]  ? zap_class+0x640/0x640
[  322.906566]  ? pvclock_read_flags+0x160/0x160
[  322.911128]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.916670]  ? check_preemption_disabled+0x48/0x280
[  322.921695]  ? __lock_is_held+0xb5/0x140
[  322.925758]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.931297]  ? check_preemption_disabled+0x48/0x280
[  322.936320]  run_timer_softirq+0x52/0xb0
[  322.940399]  ? rcu_read_lock_sched_held+0x14f/0x180
[  322.945434]  __do_softirq+0x308/0xb7e
[  322.949237]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  322.953733]  ? lock_downgrade+0x900/0x900
[  322.957916]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  322.963042]  ? pvclock_read_flags+0x160/0x160
[  322.967543]  ? lapic_next_event+0x5a/0x90
[  322.971712]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.977258]  ? kvm_clock_read+0x18/0x30
[  322.981235]  ? kvm_sched_clock_read+0x9/0x20
[  322.985648]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.991194]  ? check_preemption_disabled+0x48/0x280
[  322.996225]  irq_exit+0x17f/0x1c0
[  322.999682]  smp_apic_timer_interrupt+0x1cb/0x760
[  323.004560]  ? smp_reschedule_interrupt+0x109/0x650
[  323.009578]  ? smp_call_function_single_interrupt+0x650/0x650
[  323.015466]  ? interrupt_entry+0xb5/0xc0
[  323.019533]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.024548]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.029579]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.034468]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.039484]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.044502]  ? task_prio+0x50/0x50
[  323.048046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.053590]  ? check_preemption_disabled+0x48/0x280
[  323.058631]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.063484]  apic_timer_interrupt+0xf/0x20
[  323.067712]  </IRQ>
[  323.069958] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  323.074898] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  323.093815] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  323.101528] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  323.108797] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  323.116064] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  323.123333] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  323.130598] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  323.137914]  skb_clone+0x1bb/0x500
[  323.141460]  ? finish_task_switch+0x2f4/0x910
[  323.145956]  ? skb_split+0x11e0/0x11e0
[  323.149848]  ? preempt_notifier_register+0x200/0x200
[  323.154953]  ? __switch_to_asm+0x34/0x70
[  323.159009]  ? __switch_to_asm+0x34/0x70
[  323.163084]  ? __switch_to_asm+0x40/0x70
[  323.167144]  ? __switch_to_asm+0x34/0x70
[  323.171205]  ? __switch_to_asm+0x40/0x70
[  323.175264]  ? __switch_to_asm+0x34/0x70
[  323.179318]  ? __switch_to_asm+0x40/0x70
[  323.183401]  ? __switch_to_asm+0x34/0x70
[  323.187458]  ? __switch_to_asm+0x34/0x70
[  323.191531]  ? __switch_to_asm+0x40/0x70
[  323.195603]  ? __switch_to_asm+0x34/0x70
[  323.199669]  bpf_clone_redirect+0xb9/0x490
[  323.203910]  ? __schedule+0x8d7/0x21d0
[  323.207820]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  323.212838]  ? __sched_text_start+0x8/0x8
[  323.216987]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  323.221754]  ? find_held_lock+0x36/0x1c0
[  323.225823]  ? lock_acquire+0x1ed/0x520
[  323.229814]  ? bpf_test_run+0x3cb/0x780
[  323.233794]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.239349]  ? check_preemption_disabled+0x48/0x280
[  323.244376]  ? kasan_check_read+0x11/0x20
[  323.248526]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.253803]  ? rcu_softirq_qs+0x20/0x20
[  323.257779]  ? preempt_schedule+0x4d/0x60
[  323.261945]  ? ___preempt_schedule+0x16/0x18
[  323.266363]  ? bpf_test_run+0x25d/0x780
[  323.270364]  ? netlink_diag_dump+0x2a0/0x2a0
[  323.274775]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.280314]  ? bpf_test_init.isra.10+0x70/0x100
[  323.284992]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  323.289758]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  323.294620]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  323.300155]  ? fput+0x130/0x1a0
[  323.303440]  ? __bpf_prog_get+0x9b/0x290
[  323.307508]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  323.312347]  ? bpf_prog_test_run+0x130/0x1a0
[  323.316757]  ? __x64_sys_bpf+0x3d8/0x520
[  323.320819]  ? bpf_prog_get+0x20/0x20
[  323.324637]  ? do_syscall_64+0x1b9/0x820
[  323.328694]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  323.334061]  ? syscall_return_slowpath+0x5e0/0x5e0
[  323.338994]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.344012]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  323.349035]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  323.355697]  ? __switch_to_asm+0x40/0x70
[  323.359755]  ? __switch_to_asm+0x34/0x70
[  323.363819]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.368671]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  323.374052] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  323.374122] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  323.381080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  323.381088] Call Trace:
[  323.387661] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  323.396926]  <IRQ>
[  323.399495] syz-executor3 cpuset=syz3 mems_allowed=0
[  323.409978]  dump_stack+0x244/0x39d
[  323.420823]  ? dump_stack_print_info.cold.1+0x20/0x20
[  323.426025]  warn_alloc.cold.116+0xb7/0x1bd
[  323.430348]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  323.435205]  ? lock_downgrade+0x900/0x900
[  323.439378]  ? trace_hardirqs_off+0xb8/0x310
[  323.443790]  ? trace_hardirqs_off+0xb8/0x310
[  323.448208]  __alloc_pages_slowpath+0x26e8/0x2e10
[  323.453081]  ? warn_alloc+0x120/0x120
[  323.456919]  ? print_usage_bug+0xc0/0xc0
[  323.460982]  ? warn_alloc+0x120/0x120
[  323.464808]  ? warn_alloc+0x120/0x120
[  323.468616]  ? print_usage_bug+0xc0/0xc0
[  323.472702]  ? kvm_clock_read+0x18/0x30
[  323.476704]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  323.481749]  ? print_usage_bug+0xc0/0xc0
[  323.485808]  ? __lock_acquire+0x62f/0x4c20
[  323.490088]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.495623]  ? should_fail+0x22d/0xd01
[  323.499510]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.504791]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  323.509902]  ? __lock_acquire+0x62f/0x4c20
[  323.514147]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  323.519249]  ? __lock_acquire+0x62f/0x4c20
[  323.523484]  ? should_fail+0x22d/0xd01
[  323.527367]  ? rcu_irq_exit+0x1a2/0x390
[  323.531370]  ? mark_held_locks+0x130/0x130
[  323.535611]  ? mark_held_locks+0x130/0x130
[  323.539868]  ? mark_held_locks+0xc7/0x130
[  323.544028]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  323.549044]  ? zap_class+0x640/0x640
[  323.552759]  ? print_usage_bug+0xc0/0xc0
[  323.556825]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.562364]  ? check_preemption_disabled+0x48/0x280
[  323.567389]  ? __lock_is_held+0xb5/0x140
[  323.571457]  __alloc_pages_nodemask+0xa80/0xde0
[  323.576126]  ? zap_class+0x640/0x640
[  323.579845]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  323.584873]  ? find_held_lock+0x36/0x1c0
[  323.588970]  ? ____cache_alloc_node+0x1c7/0x1e0
[  323.593659]  ? lock_downgrade+0x900/0x900
[  323.597821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.603362]  cache_grow_begin+0xa5/0x8c0
[  323.607439]  ? do_raw_spin_unlock+0xa7/0x330
[  323.611860]  fallback_alloc+0x204/0x2e0
[  323.615846]  ____cache_alloc_node+0x1c7/0x1e0
[  323.620385]  kmem_cache_alloc_node+0xe3/0x730
[  323.624910]  ? ipv6_get_ifaddr+0x42e/0x620
[  323.629158]  __alloc_skb+0x119/0x770
[  323.632887]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.638178]  ? netdev_alloc_frag+0x1f0/0x1f0
[  323.642621]  ? lock_downgrade+0x900/0x900
[  323.646787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.652324]  ? refcount_sub_and_test_checked+0x203/0x310
[  323.657779]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  323.663240]  ? addrconf_rs_timer+0x690/0x690
[  323.667680]  ndisc_alloc_skb+0x144/0x340
[  323.671758]  ndisc_send_rs+0x331/0x6e0
[  323.675654]  addrconf_rs_timer+0x314/0x690
[  323.679907]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.684188]  call_timer_fn+0x272/0x920
[  323.688081]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.692330]  ? process_timeout+0x40/0x40
[  323.696407]  ? mark_held_locks+0xc7/0x130
[  323.700557]  ? _raw_spin_unlock_irq+0x27/0x80
[  323.705068]  ? _raw_spin_unlock_irq+0x27/0x80
[  323.709564]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.713801]  ? lockdep_hardirqs_on+0x296/0x5b0
[  323.718387]  ? trace_hardirqs_on+0xbd/0x310
[  323.722711]  ? kasan_check_read+0x11/0x20
[  323.726859]  ? __run_timers+0x7da/0xc70
[  323.730859]  ? trace_hardirqs_off_caller+0x310/0x310
[  323.735977]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.740217]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.744644]  __run_timers+0x7e5/0xc70
[  323.748458]  ? timer_fixup_init+0x70/0x70
[  323.752608]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  323.757633]  ? zap_class+0x640/0x640
[  323.761354]  ? print_usage_bug+0xc0/0xc0
[  323.765502]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  323.770697]  ? find_held_lock+0x36/0x1c0
[  323.774769]  ? zap_class+0x640/0x640
[  323.778500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.784054]  ? check_preemption_disabled+0x48/0x280
[  323.789086]  ? __lock_is_held+0xb5/0x140
[  323.793165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.798709]  ? check_preemption_disabled+0x48/0x280
[  323.803733]  run_timer_softirq+0x52/0xb0
[  323.807814]  ? rcu_read_lock_sched_held+0x14f/0x180
[  323.812831]  __do_softirq+0x308/0xb7e
[  323.816651]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  323.821150]  ? lock_downgrade+0x900/0x900
[  323.825303]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  323.830414]  ? pvclock_read_flags+0x160/0x160
[  323.834919]  ? lapic_next_event+0x5a/0x90
[  323.839070]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.844625]  ? kvm_clock_read+0x18/0x30
[  323.848633]  ? kvm_sched_clock_read+0x9/0x20
[  323.853061]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.858601]  ? check_preemption_disabled+0x48/0x280
[  323.863642]  irq_exit+0x17f/0x1c0
[  323.867113]  smp_apic_timer_interrupt+0x1cb/0x760
[  323.871970]  ? smp_reschedule_interrupt+0x109/0x650
[  323.877486]  ? smp_call_function_single_interrupt+0x650/0x650
[  323.883372]  ? interrupt_entry+0xb5/0xc0
[  323.887439]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.892456]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.897473]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.902312]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.907324]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.912381]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.917245]  apic_timer_interrupt+0xf/0x20
[  323.921481]  </IRQ>
[  323.923735] RIP: 0010:dump_stack+0x358/0x39d
[  323.928159] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  323.947058] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  323.954758] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  323.962035] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  323.969299] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  323.976558] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  323.983822] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  323.991103]  ? dump_stack+0x34f/0x39d
[  323.994953]  ? dump_stack_print_info.cold.1+0x20/0x20
[  324.000175]  ? mark_held_locks+0x130/0x130
[  324.004456]  ? mark_held_locks+0x130/0x130
[  324.008697]  dump_header+0x27b/0xf72
[  324.012424]  ? pagefault_out_of_memory+0x197/0x197
[  324.017371]  ? __lock_acquire+0x62f/0x4c20
[  324.021603]  ? percpu_ref_get_many+0x240/0x240
[  324.026183]  ? print_usage_bug+0xc0/0xc0
[  324.030244]  ? zap_class+0x640/0x640
[  324.033971]  ? print_usage_bug+0xc0/0xc0
[  324.038041]  ? print_usage_bug+0xc0/0xc0
[  324.042113]  ? zap_class+0x640/0x640
[  324.045858]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  324.051399]  ? find_held_lock+0x36/0x1c0
[  324.055482]  ? mark_held_locks+0xc7/0x130
[  324.059655]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  324.064774]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  324.069877]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  324.074466]  ? trace_hardirqs_on+0xbd/0x310
[  324.078827]  ? kasan_check_read+0x11/0x20
[  324.082976]  ? ___ratelimit+0x3b4/0x672
[  324.086983]  ? trace_hardirqs_off_caller+0x310/0x310
[  324.092101]  ? trace_hardirqs_on+0x310/0x310
[  324.096510]  ? lock_downgrade+0x900/0x900
[  324.100663]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  324.105775]  ? ___ratelimit+0x3b9/0x672
[  324.109754]  ? idr_get_free+0xf70/0xf70
[  324.113728]  ? find_held_lock+0x36/0x1c0
[  324.117816]  oom_kill_process.cold.27+0x10/0x903
[  324.122591]  ? zap_class+0x640/0x640
[  324.126308]  ? check_preemption_disabled+0x48/0x280
[  324.131343]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.136272]  ? kasan_check_read+0x11/0x20
[  324.140424]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.145709]  ? oom_evaluate_task+0x540/0x540
[  324.150129]  ? find_held_lock+0x36/0x1c0
[  324.154197]  ? out_of_memory+0x974/0x1430
[  324.158349]  ? lock_downgrade+0x900/0x900
[  324.162502]  ? check_preemption_disabled+0x48/0x280
[  324.167521]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.172451]  ? kasan_check_read+0x11/0x20
[  324.176601]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.181900]  ? rcu_softirq_qs+0x20/0x20
[  324.185882]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.191440]  ? oom_evaluate_task+0x302/0x540
[  324.195852]  out_of_memory+0xa84/0x1430
[  324.199834]  ? oom_killer_disable+0x3a0/0x3a0
[  324.204347]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  324.209283]  ? __ww_mutex_check_waiters+0x160/0x160
[  324.214312]  __alloc_pages_slowpath+0x2354/0x2e10
[  324.219190]  ? warn_alloc+0x120/0x120
[  324.223004]  ? mark_held_locks+0x130/0x130
[  324.227241]  ? find_get_entry+0xaae/0x1120
[  324.231481]  ? filemap_map_pages+0x1a20/0x1a20
[  324.236081]  ? zap_class+0x640/0x640
[  324.239805]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  324.245344]  ? check_preemption_disabled+0x48/0x280
[  324.250812]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.256348]  ? should_fail+0x22d/0xd01
[  324.260243]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  324.265364]  ? zap_class+0x640/0x640
[  324.269107]  ? __lock_is_held+0xb5/0x140
[  324.273204]  ? mark_held_locks+0x130/0x130
[  324.277437]  ? lock_release+0xa00/0xa00
[  324.281428]  ? perf_trace_sched_process_exec+0x860/0x860
[  324.286882]  ? xa_load+0x2ba/0x460
[  324.290454]  ? lock_downgrade+0x900/0x900
[  324.294602]  ? __might_sleep+0x95/0x190
[  324.298591]  __alloc_pages_nodemask+0xa80/0xde0
[  324.303293]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  324.308306]  ? __page_cache_alloc+0x191/0x5c0
[  324.312803]  ? xa_load+0x2e1/0x460
[  324.316342]  ? xa_clear_mark+0x40/0x40
[  324.320235]  ? zap_class+0x640/0x640
[  324.323957]  ? zap_class+0x640/0x640
[  324.327666]  ? zap_class+0x640/0x640
[  324.331396]  ? __do_page_cache_readahead+0x663/0x810
[  324.336516]  ? find_held_lock+0x36/0x1c0
[  324.340588]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  324.346128]  alloc_pages_current+0x173/0x350
[  324.350536]  __page_cache_alloc+0x38c/0x5c0
[  324.354849]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.359772]  ? kasan_check_read+0x11/0x20
[  324.363921]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.369209]  ? generic_perform_write+0x6a0/0x6a0
[  324.373990]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.379546]  ? check_preemption_disabled+0x48/0x280
[  324.384584]  filemap_fault+0x1595/0x25f0
[  324.388666]  ? __lock_page_or_retry+0xa00/0xa00
[  324.393340]  ? mark_held_locks+0x130/0x130
[  324.397588]  ? filemap_map_pages+0xd6b/0x1a20
[  324.402080]  ? lock_downgrade+0x900/0x900
[  324.406228]  ? check_preemption_disabled+0x48/0x280
[  324.411243]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.416187]  ? kasan_check_read+0x11/0x20
[  324.420332]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.425625]  ? rcu_softirq_qs+0x20/0x20
[  324.429609]  ? filemap_map_pages+0xd92/0x1a20
[  324.434133]  ? print_usage_bug+0xc0/0xc0
[  324.438216]  ? find_get_entries_tag+0x1400/0x1400
[  324.443057]  ? __kasan_slab_free+0x102/0x150
[  324.447488]  ? kasan_slab_free+0xe/0x10
[  324.451459]  ? kmem_cache_free+0x83/0x290
[  324.455610]  ? __sigqueue_free.part.29+0x74/0x90
[  324.460386]  ? lock_acquire+0x1ed/0x520
[  324.464362]  ? ext4_filemap_fault+0x7a/0xad
[  324.468707]  ? lock_release+0xa00/0xa00
[  324.472713]  ? perf_trace_sched_process_exec+0x860/0x860
[  324.478166]  ? print_usage_bug+0xc0/0xc0
[  324.482229]  ? print_usage_bug+0xc0/0xc0
[  324.486334]  ? down_read+0x8d/0x120
[  324.489972]  ? ext4_filemap_fault+0x7a/0xad
[  324.494303]  ? __down_interruptible+0x700/0x700
[  324.498978]  ext4_filemap_fault+0x82/0xad
[  324.503126]  __do_fault+0x100/0x6b0
[  324.506757]  ? pmd_devmap_trans_unstable+0x220/0x220
[  324.511864]  ? mark_held_locks+0x130/0x130
[  324.516121]  ? mark_held_locks+0x130/0x130
[  324.520354]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  324.525931]  ? rcu_pm_notify+0xc0/0xc0
[  324.529836]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.535385]  __handle_mm_fault+0x3ea0/0x5be0
[  324.539809]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  324.544645]  ? _raw_spin_unlock_irq+0x27/0x80
[  324.549612]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  324.554215]  ? trace_hardirqs_on+0xbd/0x310
[  324.558560]  ? kasan_check_read+0x11/0x20
[  324.562712]  ? __set_current_blocked+0xdf/0x120
[  324.567383]  ? trace_hardirqs_off_caller+0x310/0x310
[  324.572500]  ? zap_class+0x640/0x640
[  324.576216]  ? zap_class+0x640/0x640
[  324.579942]  ? find_held_lock+0x36/0x1c0
[  324.584013]  ? handle_mm_fault+0x42a/0xc70
[  324.588250]  ? lock_downgrade+0x900/0x900
[  324.592414]  ? check_preemption_disabled+0x48/0x280
[  324.597451]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.602381]  ? kasan_check_read+0x11/0x20
[  324.606527]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.611803]  ? rcu_softirq_qs+0x20/0x20
[  324.615793]  ? trace_hardirqs_off_caller+0x310/0x310
[  324.620900]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.626432]  ? check_preemption_disabled+0x48/0x280
[  324.631446]  handle_mm_fault+0x54f/0xc70
[  324.635501]  ? __handle_mm_fault+0x5be0/0x5be0
[  324.640080]  ? find_vma+0x34/0x190
[  324.643633]  __do_page_fault+0x5e8/0xe60
[  324.647727]  ? exit_to_usermode_loop+0x1f4/0x380
[  324.652509]  do_page_fault+0xf2/0x7e0
[  324.656305]  ? vmalloc_sync_all+0x30/0x30
[  324.660462]  ? error_entry+0x70/0xd0
[  324.664188]  ? trace_hardirqs_off_caller+0xbb/0x310
[  324.669207]  ? trace_hardirqs_on_caller+0xc0/0x310
[  324.674130]  ? syscall_return_slowpath+0x5e0/0x5e0
[  324.679053]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  324.683912]  ? trace_hardirqs_on_caller+0x310/0x310
[  324.688953]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  324.694400]  ? prepare_exit_to_usermode+0x291/0x3b0
[  324.699427]  ? page_fault+0x8/0x30
[  324.702968]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  324.707808]  ? page_fault+0x8/0x30
[  324.711346]  page_fault+0x1e/0x30
[  324.714795] RIP: 0033:0x45db60
[  324.718000] Code: Bad RIP value.
[  324.721355] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  324.726728] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  324.733990] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  324.741267] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  324.748567] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  324.755856] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  324.763145] warn_alloc_show_mem: 1 callbacks suppressed
[  324.763157] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  324.763158] Mem-Info:
[  324.763213] active_anon:54051 inactive_anon:192 isolated_anon:0
[  324.763213]  active_file:9 inactive_file:20 isolated_file:0
[  324.763213]  unevictable:0 dirty:0 writeback:0 unstable:0
[  324.763213]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  324.763213]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  324.763213]  free:13735 free_pcp:540 free_cma:0
[  324.768565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  324.775839] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  324.778260] Call Trace:
[  324.811058] 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
[  324.820399]  <IRQ>
[  324.847806] lowmem_reserve[]: 0 2818 6321 6321
[  324.850397]  dump_stack+0x244/0x39d
[  324.876954] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  324.879108]  ? dump_stack_print_info.cold.1+0x20/0x20
[  324.883661] lowmem_reserve[]: 0 0 3503 3503
[  324.887291]  warn_alloc.cold.116+0xb7/0x1bd
[  324.915016] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  324.920202]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  324.924505] lowmem_reserve[]: 0 0 0 0
[  324.928819]  ? lock_downgrade+0x900/0x900
[  324.957867] 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
[  324.962730]  ? trace_hardirqs_off+0xb8/0x310
[  324.966494] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  324.970645]  ? trace_hardirqs_off+0xb8/0x310
[  324.984150] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  324.988563]  __alloc_pages_slowpath+0x26e8/0x2e10
[  325.003802] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  325.008230]  ? warn_alloc+0x120/0x120
[  325.022327] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  325.022336] 273 total pagecache pages
[  325.027178]  ? print_usage_bug+0xc0/0xc0
[  325.035995] 0 pages in swap cache
[  325.039783]  ? warn_alloc+0x120/0x120
[  325.048336] Swap cache stats: add 0, delete 0, find 0/0
[  325.052129]  ? warn_alloc+0x120/0x120
[  325.056176] Free swap  = 0kB
[  325.059625]  ? print_usage_bug+0xc0/0xc0
[  325.063411] Total swap = 0kB
[  325.068778]  ? kvm_clock_read+0x18/0x30
[  325.072591] 1965979 pages RAM
[  325.075641]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  325.079685] 0 pages HighMem/MovableOnly
[  325.082704]  ? print_usage_bug+0xc0/0xc0
[  325.082720]  ? __lock_acquire+0x62f/0x4c20
[  325.086678] 342853 pages reserved
[  325.089781]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  325.094771] 0 pages cma reserved
[  325.098737]  ? should_fail+0x22d/0xd01
[  325.102831] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  325.106993]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  325.107011]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  325.110492] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  325.115979]  ? __lock_acquire+0x62f/0x4c20
[  325.119329] syz-fuzzer cpuset=/ mems_allowed=0
[  325.123212]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  325.164143]  ? __lock_acquire+0x62f/0x4c20
[  325.168374]  ? should_fail+0x22d/0xd01
[  325.172301]  ? rcu_irq_exit+0x1a2/0x390
[  325.176282]  ? mark_held_locks+0x130/0x130
[  325.180519]  ? mark_held_locks+0x130/0x130
[  325.184791]  ? mark_held_locks+0xc7/0x130
[  325.188943]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  325.193973]  ? zap_class+0x640/0x640
[  325.197685]  ? print_usage_bug+0xc0/0xc0
[  325.201750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.207331]  ? check_preemption_disabled+0x48/0x280
[  325.212361]  ? __lock_is_held+0xb5/0x140
[  325.216443]  __alloc_pages_nodemask+0xa80/0xde0
[  325.221112]  ? zap_class+0x640/0x640
[  325.224832]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  325.229859]  ? find_held_lock+0x36/0x1c0
[  325.233937]  ? ____cache_alloc_node+0x1c7/0x1e0
[  325.238630]  ? lock_downgrade+0x900/0x900
[  325.242804]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.248360]  cache_grow_begin+0xa5/0x8c0
[  325.252463]  ? do_raw_spin_unlock+0xa7/0x330
[  325.256899]  fallback_alloc+0x204/0x2e0
[  325.260881]  ____cache_alloc_node+0x1c7/0x1e0
[  325.265423]  kmem_cache_alloc_node+0xe3/0x730
[  325.269927]  ? ipv6_get_ifaddr+0x42e/0x620
[  325.274172]  __alloc_skb+0x119/0x770
[  325.277886]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  325.283172]  ? netdev_alloc_frag+0x1f0/0x1f0
[  325.287584]  ? lock_downgrade+0x900/0x900
[  325.291736]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.297272]  ? refcount_sub_and_test_checked+0x203/0x310
[  325.302725]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  325.308174]  ? addrconf_rs_timer+0x690/0x690
[  325.312634]  ndisc_alloc_skb+0x144/0x340
[  325.316700]  ndisc_send_rs+0x331/0x6e0
[  325.320600]  addrconf_rs_timer+0x314/0x690
[  325.324836]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.329093]  call_timer_fn+0x272/0x920
[  325.332980]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.337221]  ? process_timeout+0x40/0x40
[  325.341290]  ? __run_timers+0x7da/0xc70
[  325.345265]  ? _raw_spin_unlock_irq+0x27/0x80
[  325.349761]  ? _raw_spin_unlock_irq+0x27/0x80
[  325.354260]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.358494]  ? lockdep_hardirqs_on+0x296/0x5b0
[  325.363087]  ? trace_hardirqs_on+0xbd/0x310
[  325.367406]  ? kasan_check_read+0x11/0x20
[  325.371552]  ? __run_timers+0x7da/0xc70
[  325.375555]  ? trace_hardirqs_off_caller+0x310/0x310
[  325.380660]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.384916]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.389162]  __run_timers+0x7e5/0xc70
[  325.392994]  ? timer_fixup_init+0x70/0x70
[  325.397163]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  325.402186]  ? zap_class+0x640/0x640
[  325.405918]  ? enqueue_hrtimer+0x1a5/0x560
[  325.410158]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  325.415362]  ? find_held_lock+0x36/0x1c0
[  325.419430]  ? zap_class+0x640/0x640
[  325.423147]  ? pvclock_read_flags+0x160/0x160
[  325.427677]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.433235]  ? check_preemption_disabled+0x48/0x280
[  325.438272]  ? __lock_is_held+0xb5/0x140
[  325.442334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.447869]  ? check_preemption_disabled+0x48/0x280
[  325.452932]  run_timer_softirq+0x52/0xb0
[  325.457009]  ? rcu_read_lock_sched_held+0x14f/0x180
[  325.462027]  __do_softirq+0x308/0xb7e
[  325.465828]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  325.470323]  ? lock_downgrade+0x900/0x900
[  325.474485]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  325.479596]  ? pvclock_read_flags+0x160/0x160
[  325.484091]  ? lapic_next_event+0x5a/0x90
[  325.488238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.493774]  ? kvm_clock_read+0x18/0x30
[  325.497749]  ? kvm_sched_clock_read+0x9/0x20
[  325.502156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.507712]  ? check_preemption_disabled+0x48/0x280
[  325.512751]  irq_exit+0x17f/0x1c0
[  325.516267]  smp_apic_timer_interrupt+0x1cb/0x760
[  325.521112]  ? smp_reschedule_interrupt+0x109/0x650
[  325.526145]  ? smp_call_function_single_interrupt+0x650/0x650
[  325.532051]  ? interrupt_entry+0xb5/0xc0
[  325.536116]  ? trace_hardirqs_off_caller+0xbb/0x310
[  325.541130]  ? trace_hardirqs_off_caller+0xbb/0x310
[  325.546146]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.550992]  ? trace_hardirqs_on_caller+0x310/0x310
[  325.556006]  ? trace_hardirqs_on_caller+0x310/0x310
[  325.561027]  ? task_prio+0x50/0x50
[  325.564574]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.570115]  ? check_preemption_disabled+0x48/0x280
[  325.575137]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.580001]  apic_timer_interrupt+0xf/0x20
[  325.584248]  </IRQ>
[  325.586493] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  325.591459] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  325.610358] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  325.618076] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  325.625343] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  325.632608] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  325.639888] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  325.647163] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  325.654476]  skb_clone+0x1bb/0x500
[  325.658017]  ? finish_task_switch+0x2f4/0x910
[  325.662528]  ? skb_split+0x11e0/0x11e0
[  325.666421]  ? preempt_notifier_register+0x200/0x200
[  325.671522]  ? __switch_to_asm+0x34/0x70
[  325.675586]  ? __switch_to_asm+0x34/0x70
[  325.679668]  ? __switch_to_asm+0x40/0x70
[  325.683726]  ? __switch_to_asm+0x34/0x70
[  325.687787]  ? __switch_to_asm+0x40/0x70
[  325.691856]  ? __switch_to_asm+0x34/0x70
[  325.695924]  ? __switch_to_asm+0x40/0x70
[  325.699983]  ? __switch_to_asm+0x34/0x70
[  325.704047]  ? __switch_to_asm+0x34/0x70
[  325.708105]  ? __switch_to_asm+0x40/0x70
[  325.712163]  ? __switch_to_asm+0x34/0x70
[  325.716237]  bpf_clone_redirect+0xb9/0x490
[  325.720475]  ? __schedule+0x8d7/0x21d0
[  325.724374]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  325.729394]  ? __sched_text_start+0x8/0x8
[  325.733541]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  325.738308]  ? find_held_lock+0x36/0x1c0
[  325.742616]  ? lock_acquire+0x1ed/0x520
[  325.746592]  ? bpf_test_run+0x3cb/0x780
[  325.750567]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.756109]  ? check_preemption_disabled+0x48/0x280
[  325.761135]  ? kasan_check_read+0x11/0x20
[  325.765284]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  325.770563]  ? rcu_softirq_qs+0x20/0x20
[  325.774542]  ? preempt_schedule+0x4d/0x60
[  325.778702]  ? ___preempt_schedule+0x16/0x18
[  325.783120]  ? bpf_test_run+0x25d/0x780
[  325.787105]  ? netlink_diag_dump+0x2a0/0x2a0
[  325.791518]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  325.797060]  ? bpf_test_init.isra.10+0x70/0x100
[  325.801738]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  325.806508]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  325.811350]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  325.816888]  ? fput+0x130/0x1a0
[  325.820178]  ? __bpf_prog_get+0x9b/0x290
[  325.824252]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  325.829093]  ? bpf_prog_test_run+0x130/0x1a0
[  325.833505]  ? __x64_sys_bpf+0x3d8/0x520
[  325.837569]  ? bpf_prog_get+0x20/0x20
[  325.841399]  ? do_syscall_64+0x1b9/0x820
[  325.845490]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  325.850856]  ? syscall_return_slowpath+0x5e0/0x5e0
[  325.855788]  ? trace_hardirqs_on_caller+0x310/0x310
[  325.860807]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  325.865830]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  325.872494]  ? __switch_to_asm+0x40/0x70
[  325.876990]  ? __switch_to_asm+0x34/0x70
[  325.881062]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.885921]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  325.891304] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  325.891373] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  325.898314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  325.898319] Call Trace:
[  325.898326]  <IRQ>
[  325.898343]  dump_stack+0x244/0x39d
[  325.898361]  ? dump_stack_print_info.cold.1+0x20/0x20
[  325.904936] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  325.914191]  warn_alloc.cold.116+0xb7/0x1bd
[  325.916768] syz-executor3 cpuset=syz3 mems_allowed=0
[  325.918935]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  325.952525]  ? lock_downgrade+0x900/0x900
[  325.956682]  ? trace_hardirqs_off+0xb8/0x310
[  325.961105]  ? trace_hardirqs_off+0xb8/0x310
[  325.965523]  __alloc_pages_slowpath+0x26e8/0x2e10
[  325.970397]  ? warn_alloc+0x120/0x120
[  325.974217]  ? print_usage_bug+0xc0/0xc0
[  325.978285]  ? warn_alloc+0x120/0x120
[  325.982091]  ? warn_alloc+0x120/0x120
[  325.985900]  ? print_usage_bug+0xc0/0xc0
[  325.989966]  ? print_usage_bug+0xc0/0xc0
[  325.994491]  ? __lock_acquire+0x62f/0x4c20
[  325.998734]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.004300]  ? should_fail+0x22d/0xd01
[  326.008198]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  326.013333]  ? __lock_acquire+0x62f/0x4c20
[  326.017573]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  326.022675]  ? __lock_acquire+0x62f/0x4c20
[  326.026912]  ? should_fail+0x22d/0xd01
[  326.030826]  ? find_held_lock+0x36/0x1c0
[  326.034902]  ? mark_held_locks+0x130/0x130
[  326.039146]  ? mark_held_locks+0x130/0x130
[  326.043377]  ? zap_class+0x640/0x640
[  326.047105]  ? zap_class+0x640/0x640
[  326.050849]  ? print_usage_bug+0xc0/0xc0
[  326.054914]  ? do_raw_spin_unlock+0xa7/0x330
[  326.059318]  ? zap_class+0x640/0x640
[  326.063027]  ? print_usage_bug+0xc0/0xc0
[  326.067084]  ? wq_watchdog_touch+0x9c/0xfe
[  326.071318]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.076852]  ? check_preemption_disabled+0x48/0x280
[  326.081868]  ? __lock_is_held+0xb5/0x140
[  326.085951]  __alloc_pages_nodemask+0xa80/0xde0
[  326.090648]  ? zap_class+0x640/0x640
[  326.094401]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  326.099881]  ? find_held_lock+0x36/0x1c0
[  326.103965]  ? ____cache_alloc_node+0x1c7/0x1e0
[  326.108633]  ? lock_downgrade+0x900/0x900
[  326.112799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.118342]  cache_grow_begin+0xa5/0x8c0
[  326.122407]  ? do_raw_spin_unlock+0xa7/0x330
[  326.126848]  fallback_alloc+0x204/0x2e0
[  326.130827]  ____cache_alloc_node+0x1c7/0x1e0
[  326.135330]  kmem_cache_alloc_node+0xe3/0x730
[  326.139833]  ? ipv6_get_ifaddr+0x42e/0x620
[  326.144074]  __alloc_skb+0x119/0x770
[  326.147797]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.153078]  ? netdev_alloc_frag+0x1f0/0x1f0
[  326.157490]  ? lock_downgrade+0x900/0x900
[  326.161658]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.167197]  ? refcount_sub_and_test_checked+0x203/0x310
[  326.172655]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  326.178109]  ? addrconf_rs_timer+0x690/0x690
[  326.182535]  ndisc_alloc_skb+0x144/0x340
[  326.186607]  ndisc_send_rs+0x331/0x6e0
[  326.190499]  addrconf_rs_timer+0x314/0x690
[  326.194737]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  326.198997]  call_timer_fn+0x272/0x920
[  326.202901]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  326.207140]  ? process_timeout+0x40/0x40
[  326.211227]  ? mark_held_locks+0xc7/0x130
[  326.215382]  ? _raw_spin_unlock_irq+0x27/0x80
[  326.219875]  ? _raw_spin_unlock_irq+0x27/0x80
[  326.224376]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  326.228611]  ? lockdep_hardirqs_on+0x296/0x5b0
[  326.233199]  ? trace_hardirqs_on+0xbd/0x310
[  326.237518]  ? kasan_check_read+0x11/0x20
[  326.241660]  ? __run_timers+0x7da/0xc70
[  326.245666]  ? trace_hardirqs_off_caller+0x310/0x310
[  326.250808]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  326.255053]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  326.259286]  __run_timers+0x7e5/0xc70
[  326.263099]  ? timer_fixup_init+0x70/0x70
[  326.267249]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  326.272270]  ? zap_class+0x640/0x640
[  326.275990]  ? print_usage_bug+0xc0/0xc0
[  326.280052]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  326.285250]  ? find_held_lock+0x36/0x1c0
[  326.289331]  ? zap_class+0x640/0x640
[  326.293056]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.298601]  ? check_preemption_disabled+0x48/0x280
[  326.303648]  ? __lock_is_held+0xb5/0x140
[  326.307713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.313269]  ? check_preemption_disabled+0x48/0x280
[  326.318295]  run_timer_softirq+0x52/0xb0
[  326.322354]  ? rcu_read_lock_sched_held+0x14f/0x180
[  326.327374]  __do_softirq+0x308/0xb7e
[  326.331194]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  326.335695]  ? lock_downgrade+0x900/0x900
[  326.339845]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  326.344959]  ? pvclock_read_flags+0x160/0x160
[  326.349458]  ? lapic_next_event+0x5a/0x90
[  326.353609]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.359154]  ? kvm_clock_read+0x18/0x30
[  326.363124]  ? kvm_sched_clock_read+0x9/0x20
[  326.367529]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.373082]  ? check_preemption_disabled+0x48/0x280
[  326.378103]  irq_exit+0x17f/0x1c0
[  326.381554]  smp_apic_timer_interrupt+0x1cb/0x760
[  326.386422]  ? smp_reschedule_interrupt+0x109/0x650
[  326.391436]  ? smp_call_function_single_interrupt+0x650/0x650
[  326.397330]  ? interrupt_entry+0xb5/0xc0
[  326.401421]  ? trace_hardirqs_off_caller+0xbb/0x310
[  326.406432]  ? trace_hardirqs_off_caller+0xbb/0x310
[  326.411448]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  326.416283]  ? trace_hardirqs_on_caller+0x310/0x310
[  326.421304]  ? trace_hardirqs_on_caller+0x310/0x310
[  326.426321]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  326.431163]  apic_timer_interrupt+0xf/0x20
[  326.435398]  </IRQ>
[  326.437654] RIP: 0010:dump_stack+0x358/0x39d
[  326.442058] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  326.460952] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  326.468670] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  326.475936] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  326.483227] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  326.490496] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  326.497782] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  326.505073]  ? dump_stack+0x34f/0x39d
[  326.508879]  ? dump_stack_print_info.cold.1+0x20/0x20
[  326.514085]  ? mark_held_locks+0x130/0x130
[  326.518330]  ? mark_held_locks+0x130/0x130
[  326.522577]  dump_header+0x27b/0xf72
[  326.526298]  ? pagefault_out_of_memory+0x197/0x197
[  326.531275]  ? __lock_acquire+0x62f/0x4c20
[  326.535506]  ? percpu_ref_get_many+0x240/0x240
[  326.540098]  ? print_usage_bug+0xc0/0xc0
[  326.544157]  ? zap_class+0x640/0x640
[  326.547868]  ? print_usage_bug+0xc0/0xc0
[  326.551931]  ? print_usage_bug+0xc0/0xc0
[  326.555994]  ? zap_class+0x640/0x640
[  326.559713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.565252]  ? find_held_lock+0x36/0x1c0
[  326.569319]  ? mark_held_locks+0xc7/0x130
[  326.573462]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  326.578560]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  326.583660]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  326.588256]  ? trace_hardirqs_on+0xbd/0x310
[  326.592573]  ? kasan_check_read+0x11/0x20
[  326.596734]  ? ___ratelimit+0x3b4/0x672
[  326.600712]  ? trace_hardirqs_off_caller+0x310/0x310
[  326.605820]  ? trace_hardirqs_on+0x310/0x310
[  326.610227]  ? lock_downgrade+0x900/0x900
[  326.614378]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  326.619501]  ? ___ratelimit+0x3b9/0x672
[  326.623495]  ? idr_get_free+0xf70/0xf70
[  326.627473]  ? find_held_lock+0x36/0x1c0
[  326.631557]  oom_kill_process.cold.27+0x10/0x903
[  326.636313]  ? zap_class+0x640/0x640
[  326.640027]  ? check_preemption_disabled+0x48/0x280
[  326.645064]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.649996]  ? kasan_check_read+0x11/0x20
[  326.654146]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.659427]  ? oom_evaluate_task+0x540/0x540
[  326.663843]  ? find_held_lock+0x36/0x1c0
[  326.667925]  ? out_of_memory+0x974/0x1430
[  326.672076]  ? lock_downgrade+0x900/0x900
[  326.676229]  ? check_preemption_disabled+0x48/0x280
[  326.681273]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.686200]  ? kasan_check_read+0x11/0x20
[  326.690353]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.695633]  ? rcu_softirq_qs+0x20/0x20
[  326.699627]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.705167]  ? oom_evaluate_task+0x302/0x540
[  326.709595]  out_of_memory+0xa84/0x1430
[  326.713575]  ? oom_killer_disable+0x3a0/0x3a0
[  326.718067]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  326.723003]  ? __ww_mutex_check_waiters+0x160/0x160
[  326.728028]  __alloc_pages_slowpath+0x2354/0x2e10
[  326.732902]  ? warn_alloc+0x120/0x120
[  326.736707]  ? mark_held_locks+0x130/0x130
[  326.740964]  ? find_get_entry+0xaae/0x1120
[  326.745205]  ? filemap_map_pages+0x1a20/0x1a20
[  326.749791]  ? zap_class+0x640/0x640
[  326.753533]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.759069]  ? check_preemption_disabled+0x48/0x280
[  326.764095]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.769634]  ? should_fail+0x22d/0xd01
[  326.773521]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  326.778622]  ? zap_class+0x640/0x640
[  326.782357]  ? __lock_is_held+0xb5/0x140
[  326.786434]  ? mark_held_locks+0x130/0x130
[  326.790664]  ? lock_release+0xa00/0xa00
[  326.794644]  ? perf_trace_sched_process_exec+0x860/0x860
[  326.800095]  ? xa_load+0x2ba/0x460
[  326.803632]  ? lock_downgrade+0x900/0x900
[  326.807796]  ? __might_sleep+0x95/0x190
[  326.811767]  __alloc_pages_nodemask+0xa80/0xde0
[  326.816437]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  326.821448]  ? __page_cache_alloc+0x191/0x5c0
[  326.825944]  ? xa_load+0x2e1/0x460
[  326.829482]  ? xa_clear_mark+0x40/0x40
[  326.833405]  ? zap_class+0x640/0x640
[  326.837122]  ? zap_class+0x640/0x640
[  326.840833]  ? zap_class+0x640/0x640
[  326.844557]  ? __do_page_cache_readahead+0x663/0x810
[  326.849714]  ? find_held_lock+0x36/0x1c0
[  326.853794]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  326.859332]  alloc_pages_current+0x173/0x350
[  326.863759]  __page_cache_alloc+0x38c/0x5c0
[  326.868079]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.873007]  ? kasan_check_read+0x11/0x20
[  326.877646]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.882937]  ? generic_perform_write+0x6a0/0x6a0
[  326.887687]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.893229]  ? check_preemption_disabled+0x48/0x280
[  326.898280]  filemap_fault+0x1595/0x25f0
[  326.902350]  ? __lock_page_or_retry+0xa00/0xa00
[  326.907044]  ? mark_held_locks+0x130/0x130
[  326.911296]  ? filemap_map_pages+0xd6b/0x1a20
[  326.915787]  ? lock_downgrade+0x900/0x900
[  326.919945]  ? check_preemption_disabled+0x48/0x280
[  326.924959]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.929883]  ? kasan_check_read+0x11/0x20
[  326.934032]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.939303]  ? rcu_softirq_qs+0x20/0x20
[  326.943281]  ? filemap_map_pages+0xd92/0x1a20
[  326.947791]  ? print_usage_bug+0xc0/0xc0
[  326.951884]  ? find_get_entries_tag+0x1400/0x1400
[  326.956727]  ? __kasan_slab_free+0x102/0x150
[  326.961129]  ? kasan_slab_free+0xe/0x10
[  326.965096]  ? kmem_cache_free+0x83/0x290
[  326.969235]  ? __sigqueue_free.part.29+0x74/0x90
[  326.974018]  ? lock_acquire+0x1ed/0x520
[  326.978004]  ? ext4_filemap_fault+0x7a/0xad
[  326.982329]  ? lock_release+0xa00/0xa00
[  326.986294]  ? perf_trace_sched_process_exec+0x860/0x860
[  326.991740]  ? print_usage_bug+0xc0/0xc0
[  326.995796]  ? print_usage_bug+0xc0/0xc0
[  326.999876]  ? down_read+0x8d/0x120
[  327.003503]  ? ext4_filemap_fault+0x7a/0xad
[  327.007818]  ? __down_interruptible+0x700/0x700
[  327.012489]  ext4_filemap_fault+0x82/0xad
[  327.016646]  __do_fault+0x100/0x6b0
[  327.020290]  ? pmd_devmap_trans_unstable+0x220/0x220
[  327.025404]  ? mark_held_locks+0x130/0x130
[  327.029666]  ? mark_held_locks+0x130/0x130
[  327.033909]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  327.039461]  ? rcu_pm_notify+0xc0/0xc0
[  327.043348]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  327.048907]  __handle_mm_fault+0x3ea0/0x5be0
[  327.053333]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  327.058169]  ? _raw_spin_unlock_irq+0x27/0x80
[  327.062662]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  327.067263]  ? trace_hardirqs_on+0xbd/0x310
[  327.071584]  ? kasan_check_read+0x11/0x20
[  327.075725]  ? __set_current_blocked+0xdf/0x120
[  327.080405]  ? trace_hardirqs_off_caller+0x310/0x310
[  327.085534]  ? zap_class+0x640/0x640
[  327.089262]  ? zap_class+0x640/0x640
[  327.092981]  ? find_held_lock+0x36/0x1c0
[  327.097164]  ? handle_mm_fault+0x42a/0xc70
[  327.101415]  ? lock_downgrade+0x900/0x900
[  327.105565]  ? check_preemption_disabled+0x48/0x280
[  327.110598]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  327.115527]  ? kasan_check_read+0x11/0x20
[  327.119677]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  327.124956]  ? rcu_softirq_qs+0x20/0x20
[  327.128932]  ? trace_hardirqs_off_caller+0x310/0x310
[  327.134055]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  327.139594]  ? check_preemption_disabled+0x48/0x280
[  327.144628]  handle_mm_fault+0x54f/0xc70
[  327.148694]  ? __handle_mm_fault+0x5be0/0x5be0
[  327.153299]  ? find_vma+0x34/0x190
[  327.156846]  __do_page_fault+0x5e8/0xe60
[  327.160923]  ? exit_to_usermode_loop+0x1f4/0x380
[  327.165699]  do_page_fault+0xf2/0x7e0
[  327.169501]  ? vmalloc_sync_all+0x30/0x30
[  327.173651]  ? error_entry+0x70/0xd0
[  327.177384]  ? trace_hardirqs_off_caller+0xbb/0x310
[  327.182402]  ? trace_hardirqs_on_caller+0xc0/0x310
[  327.187358]  ? syscall_return_slowpath+0x5e0/0x5e0
[  327.192285]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  327.197131]  ? trace_hardirqs_on_caller+0x310/0x310
[  327.202145]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  327.207597]  ? prepare_exit_to_usermode+0x291/0x3b0
[  327.212611]  ? page_fault+0x8/0x30
[  327.216152]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  327.221007]  ? page_fault+0x8/0x30
[  327.224550]  page_fault+0x1e/0x30
[  327.227998] RIP: 0033:0x45db60
[  327.231197] Code: Bad RIP value.
[  327.234559] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  327.239922] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  327.247189] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  327.254453] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  327.261726] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  327.268993] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  327.276286] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  327.276291] warn_alloc_show_mem: 1 callbacks suppressed
[  327.276313] Mem-Info:
[  327.283600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  327.288993] active_anon:54051 inactive_anon:192 isolated_anon:0
[  327.288993]  active_file:9 inactive_file:20 isolated_file:0
[  327.288993]  unevictable:0 dirty:0 writeback:0 unstable:0
[  327.288993]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  327.288993]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  327.288993]  free:13735 free_pcp:540 free_cma:0
[  327.291365] Call Trace:
[  327.300756] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  327.333509]  <IRQ>
[  327.336081] 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
[  327.363488]  dump_stack+0x244/0x39d
[  327.365613] lowmem_reserve[]: 0 2818 6321 6321
[  327.391731]  ? dump_stack_print_info.cold.1+0x20/0x20
[  327.395333] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  327.399938]  warn_alloc.cold.116+0xb7/0x1bd
[  327.405109] lowmem_reserve[]: 0 0 3503 3503
[  327.432863]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  327.437157] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  327.441473]  ? lock_downgrade+0x900/0x900
[  327.446286] lowmem_reserve[]: 0 0 0 0
[  327.475344]  ? trace_hardirqs_off+0xb8/0x310
[  327.479466] 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
[  327.483260]  ? trace_hardirqs_off+0xb8/0x310
[  327.487647] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  327.501165]  __alloc_pages_slowpath+0x26e8/0x2e10
[  327.505543] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  327.520831]  ? warn_alloc+0x120/0x120
[  327.525631] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  327.539753]  ? print_usage_bug+0xc0/0xc0
[  327.543547] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  327.552382]  ? warn_alloc+0x120/0x120
[  327.556442] 273 total pagecache pages
[  327.565026]  ? warn_alloc+0x120/0x120
[  327.568841] 0 pages in swap cache
[  327.572636]  ? print_usage_bug+0xc0/0xc0
[  327.576423] Swap cache stats: add 0, delete 0, find 0/0
[  327.579862]  ? kvm_clock_read+0x18/0x30
[  327.583903] Free swap  = 0kB
[  327.589254]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  327.593216] Total swap = 0kB
[  327.596224]  ? print_usage_bug+0xc0/0xc0
[  327.601215] 1965979 pages RAM
[  327.604226]  ? __lock_acquire+0x62f/0x4c20
[  327.608260] 0 pages HighMem/MovableOnly
[  327.611359]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  327.615565] 342853 pages reserved
[  327.619552]  ? should_fail+0x22d/0xd01
[  327.625065] 0 pages cma reserved
[  327.628536]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  327.632488] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  327.635790]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  327.641100] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  327.647528]  ? __lock_acquire+0x62f/0x4c20
[  327.652605] syz-fuzzer cpuset=/ mems_allowed=0
[  327.662836]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  327.676698]  ? __lock_acquire+0x62f/0x4c20
[  327.680931]  ? should_fail+0x22d/0xd01
[  327.684846]  ? rcu_irq_exit+0x1a2/0x390
[  327.688828]  ? mark_held_locks+0x130/0x130
[  327.693065]  ? mark_held_locks+0x130/0x130
[  327.697307]  ? mark_held_locks+0xc7/0x130
[  327.701467]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  327.706509]  ? zap_class+0x640/0x640
[  327.710238]  ? print_usage_bug+0xc0/0xc0
[  327.714307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.719842]  ? check_preemption_disabled+0x48/0x280
[  327.724867]  ? __lock_is_held+0xb5/0x140
[  327.728941]  __alloc_pages_nodemask+0xa80/0xde0
[  327.733627]  ? zap_class+0x640/0x640
[  327.737362]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  327.742622]  ? find_held_lock+0x36/0x1c0
[  327.746694]  ? ____cache_alloc_node+0x1c7/0x1e0
[  327.751366]  ? lock_downgrade+0x900/0x900
[  327.755522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.761078]  cache_grow_begin+0xa5/0x8c0
[  327.765163]  ? do_raw_spin_unlock+0xa7/0x330
[  327.769578]  fallback_alloc+0x204/0x2e0
[  327.773573]  ____cache_alloc_node+0x1c7/0x1e0
[  327.778074]  kmem_cache_alloc_node+0xe3/0x730
[  327.782568]  ? ipv6_get_ifaddr+0x42e/0x620
[  327.786838]  __alloc_skb+0x119/0x770
[  327.790566]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  327.795840]  ? netdev_alloc_frag+0x1f0/0x1f0
[  327.800243]  ? lock_downgrade+0x900/0x900
[  327.804405]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.809965]  ? refcount_sub_and_test_checked+0x203/0x310
[  327.815413]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  327.820858]  ? addrconf_rs_timer+0x690/0x690
[  327.825278]  ndisc_alloc_skb+0x144/0x340
[  327.829346]  ndisc_send_rs+0x331/0x6e0
[  327.833269]  addrconf_rs_timer+0x314/0x690
[  327.837521]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.841767]  call_timer_fn+0x272/0x920
[  327.845693]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.849929]  ? process_timeout+0x40/0x40
[  327.853993]  ? __run_timers+0x7da/0xc70
[  327.857984]  ? _raw_spin_unlock_irq+0x27/0x80
[  327.862474]  ? _raw_spin_unlock_irq+0x27/0x80
[  327.866964]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.871204]  ? lockdep_hardirqs_on+0x296/0x5b0
[  327.875949]  ? trace_hardirqs_on+0xbd/0x310
[  327.880279]  ? kasan_check_read+0x11/0x20
[  327.884453]  ? __run_timers+0x7da/0xc70
[  327.888454]  ? trace_hardirqs_off_caller+0x310/0x310
[  327.893556]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.897791]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.902016]  __run_timers+0x7e5/0xc70
[  327.905815]  ? timer_fixup_init+0x70/0x70
[  327.909956]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  327.914963]  ? zap_class+0x640/0x640
[  327.918687]  ? enqueue_hrtimer+0x1a5/0x560
[  327.922927]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  327.928141]  ? find_held_lock+0x36/0x1c0
[  327.932425]  ? zap_class+0x640/0x640
[  327.936140]  ? pvclock_read_flags+0x160/0x160
[  327.940641]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.946177]  ? check_preemption_disabled+0x48/0x280
[  327.951225]  ? __lock_is_held+0xb5/0x140
[  327.955290]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.960825]  ? check_preemption_disabled+0x48/0x280
[  327.965843]  run_timer_softirq+0x52/0xb0
[  327.969911]  ? rcu_read_lock_sched_held+0x14f/0x180
[  327.974931]  __do_softirq+0x308/0xb7e
[  327.978738]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  327.983261]  ? lock_downgrade+0x900/0x900
[  327.987415]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  327.992539]  ? pvclock_read_flags+0x160/0x160
[  327.997034]  ? lapic_next_event+0x5a/0x90
[  328.001186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.006737]  ? kvm_clock_read+0x18/0x30
[  328.010713]  ? kvm_sched_clock_read+0x9/0x20
[  328.015123]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.020661]  ? check_preemption_disabled+0x48/0x280
[  328.025684]  irq_exit+0x17f/0x1c0
[  328.029139]  smp_apic_timer_interrupt+0x1cb/0x760
[  328.033994]  ? smp_reschedule_interrupt+0x109/0x650
[  328.039022]  ? smp_call_function_single_interrupt+0x650/0x650
[  328.044908]  ? interrupt_entry+0xb5/0xc0
[  328.048983]  ? trace_hardirqs_off_caller+0xbb/0x310
[  328.053993]  ? trace_hardirqs_off_caller+0xbb/0x310
[  328.059026]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.063884]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.068934]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.073945]  ? task_prio+0x50/0x50
[  328.077482]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.083032]  ? check_preemption_disabled+0x48/0x280
[  328.088076]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.092925]  apic_timer_interrupt+0xf/0x20
[  328.097151]  </IRQ>
[  328.099386] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  328.104309] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  328.123222] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  328.130921] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  328.138181] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  328.145449] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  328.152727] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  328.160000] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  328.167378]  skb_clone+0x1bb/0x500
[  328.170932]  ? finish_task_switch+0x2f4/0x910
[  328.175428]  ? skb_split+0x11e0/0x11e0
[  328.179318]  ? preempt_notifier_register+0x200/0x200
[  328.184436]  ? __switch_to_asm+0x34/0x70
[  328.188496]  ? __switch_to_asm+0x34/0x70
[  328.192573]  ? __switch_to_asm+0x40/0x70
[  328.196631]  ? __switch_to_asm+0x34/0x70
[  328.200685]  ? __switch_to_asm+0x40/0x70
[  328.204755]  ? __switch_to_asm+0x34/0x70
[  328.208813]  ? __switch_to_asm+0x40/0x70
[  328.212869]  ? __switch_to_asm+0x34/0x70
[  328.216931]  ? __switch_to_asm+0x34/0x70
[  328.220987]  ? __switch_to_asm+0x40/0x70
[  328.225044]  ? __switch_to_asm+0x34/0x70
[  328.229108]  bpf_clone_redirect+0xb9/0x490
[  328.233345]  ? __schedule+0x8d7/0x21d0
[  328.237239]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  328.242270]  ? __sched_text_start+0x8/0x8
[  328.246433]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  328.251222]  ? find_held_lock+0x36/0x1c0
[  328.255302]  ? lock_acquire+0x1ed/0x520
[  328.259289]  ? bpf_test_run+0x3cb/0x780
[  328.263271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.268806]  ? check_preemption_disabled+0x48/0x280
[  328.273823]  ? kasan_check_read+0x11/0x20
[  328.277979]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  328.283252]  ? rcu_softirq_qs+0x20/0x20
[  328.287242]  ? preempt_schedule+0x4d/0x60
[  328.291424]  ? ___preempt_schedule+0x16/0x18
[  328.295834]  ? bpf_test_run+0x25d/0x780
[  328.299816]  ? netlink_diag_dump+0x2a0/0x2a0
[  328.304227]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  328.309774]  ? bpf_test_init.isra.10+0x70/0x100
[  328.314465]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  328.319244]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  328.324083]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  328.329630]  ? fput+0x130/0x1a0
[  328.332915]  ? __bpf_prog_get+0x9b/0x290
[  328.336980]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  328.341849]  ? bpf_prog_test_run+0x130/0x1a0
[  328.346254]  ? __x64_sys_bpf+0x3d8/0x520
[  328.350311]  ? bpf_prog_get+0x20/0x20
[  328.354126]  ? do_syscall_64+0x1b9/0x820
[  328.358180]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  328.363559]  ? syscall_return_slowpath+0x5e0/0x5e0
[  328.368502]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.373534]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  328.378550]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  328.385218]  ? __switch_to_asm+0x40/0x70
[  328.389276]  ? __switch_to_asm+0x34/0x70
[  328.393353]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.398216]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  328.403589] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  328.403669] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  328.410611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  328.410618] Call Trace:
[  328.417167] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  328.426432]  <IRQ>
[  328.429031] syz-executor3 cpuset=syz3 mems_allowed=0
[  328.439510]  dump_stack+0x244/0x39d
[  328.450336]  ? dump_stack_print_info.cold.1+0x20/0x20
[  328.455587]  warn_alloc.cold.116+0xb7/0x1bd
[  328.459928]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  328.464769]  ? lock_downgrade+0x900/0x900
[  328.468925]  ? trace_hardirqs_off+0xb8/0x310
[  328.473340]  ? trace_hardirqs_off+0xb8/0x310
[  328.477768]  __alloc_pages_slowpath+0x26e8/0x2e10
[  328.482652]  ? warn_alloc+0x120/0x120
[  328.486453]  ? print_usage_bug+0xc0/0xc0
[  328.490526]  ? warn_alloc+0x120/0x120
[  328.494325]  ? warn_alloc+0x120/0x120
[  328.498128]  ? print_usage_bug+0xc0/0xc0
[  328.502189]  ? print_usage_bug+0xc0/0xc0
[  328.506246]  ? __lock_acquire+0x62f/0x4c20
[  328.510496]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  328.516027]  ? should_fail+0x22d/0xd01
[  328.519919]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  328.525023]  ? __lock_acquire+0x62f/0x4c20
[  328.529304]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  328.534407]  ? __lock_acquire+0x62f/0x4c20
[  328.538637]  ? should_fail+0x22d/0xd01
[  328.542555]  ? find_held_lock+0x36/0x1c0
[  328.546622]  ? mark_held_locks+0x130/0x130
[  328.550890]  ? mark_held_locks+0x130/0x130
[  328.555128]  ? zap_class+0x640/0x640
[  328.558837]  ? zap_class+0x640/0x640
[  328.562553]  ? print_usage_bug+0xc0/0xc0
[  328.566635]  ? do_raw_spin_unlock+0xa7/0x330
[  328.571061]  ? zap_class+0x640/0x640
[  328.574832]  ? print_usage_bug+0xc0/0xc0
[  328.578915]  ? wq_watchdog_touch+0x9c/0xfe
[  328.583152]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.588688]  ? check_preemption_disabled+0x48/0x280
[  328.593718]  ? __lock_is_held+0xb5/0x140
[  328.597783]  __alloc_pages_nodemask+0xa80/0xde0
[  328.602453]  ? zap_class+0x640/0x640
[  328.606182]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  328.611224]  ? find_held_lock+0x36/0x1c0
[  328.615294]  ? ____cache_alloc_node+0x1c7/0x1e0
[  328.619964]  ? lock_downgrade+0x900/0x900
[  328.624121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.629659]  cache_grow_begin+0xa5/0x8c0
[  328.633730]  ? do_raw_spin_unlock+0xa7/0x330
[  328.638145]  fallback_alloc+0x204/0x2e0
[  328.642127]  ____cache_alloc_node+0x1c7/0x1e0
[  328.646631]  kmem_cache_alloc_node+0xe3/0x730
[  328.651126]  ? ipv6_get_ifaddr+0x42e/0x620
[  328.655371]  __alloc_skb+0x119/0x770
[  328.659085]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  328.664384]  ? netdev_alloc_frag+0x1f0/0x1f0
[  328.668806]  ? lock_downgrade+0x900/0x900
[  328.672959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.678529]  ? refcount_sub_and_test_checked+0x203/0x310
[  328.683987]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  328.689443]  ? addrconf_rs_timer+0x690/0x690
[  328.693915]  ndisc_alloc_skb+0x144/0x340
[  328.697984]  ndisc_send_rs+0x331/0x6e0
[  328.701874]  addrconf_rs_timer+0x314/0x690
[  328.706119]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.710376]  call_timer_fn+0x272/0x920
[  328.714266]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.718501]  ? process_timeout+0x40/0x40
[  328.722568]  ? mark_held_locks+0xc7/0x130
[  328.726714]  ? _raw_spin_unlock_irq+0x27/0x80
[  328.731205]  ? _raw_spin_unlock_irq+0x27/0x80
[  328.735701]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.739952]  ? lockdep_hardirqs_on+0x296/0x5b0
[  328.744557]  ? trace_hardirqs_on+0xbd/0x310
[  328.748877]  ? kasan_check_read+0x11/0x20
[  328.753088]  ? __run_timers+0x7da/0xc70
[  328.757064]  ? trace_hardirqs_off_caller+0x310/0x310
[  328.762172]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.766426]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.770671]  __run_timers+0x7e5/0xc70
[  328.774486]  ? timer_fixup_init+0x70/0x70
[  328.778635]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  328.783681]  ? zap_class+0x640/0x640
[  328.787400]  ? print_usage_bug+0xc0/0xc0
[  328.791456]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  328.796652]  ? find_held_lock+0x36/0x1c0
[  328.800731]  ? zap_class+0x640/0x640
[  328.804478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.810016]  ? check_preemption_disabled+0x48/0x280
[  328.815045]  ? __lock_is_held+0xb5/0x140
[  328.819109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.824648]  ? check_preemption_disabled+0x48/0x280
[  328.829669]  run_timer_softirq+0x52/0xb0
[  328.833736]  ? rcu_read_lock_sched_held+0x14f/0x180
[  328.838755]  __do_softirq+0x308/0xb7e
[  328.842567]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  328.847066]  ? lock_downgrade+0x900/0x900
[  328.851218]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  328.856334]  ? pvclock_read_flags+0x160/0x160
[  328.860854]  ? lapic_next_event+0x5a/0x90
[  328.865007]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.870550]  ? kvm_clock_read+0x18/0x30
[  328.874529]  ? kvm_sched_clock_read+0x9/0x20
[  328.878941]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  328.884490]  ? check_preemption_disabled+0x48/0x280
[  328.889516]  irq_exit+0x17f/0x1c0
[  328.892971]  smp_apic_timer_interrupt+0x1cb/0x760
[  328.897814]  ? smp_reschedule_interrupt+0x109/0x650
[  328.902834]  ? smp_call_function_single_interrupt+0x650/0x650
[  328.908717]  ? interrupt_entry+0xb5/0xc0
[  328.912776]  ? trace_hardirqs_off_caller+0xbb/0x310
[  328.917790]  ? trace_hardirqs_off_caller+0xbb/0x310
[  328.922805]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.927648]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.932665]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.937701]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.942565]  apic_timer_interrupt+0xf/0x20
[  328.946790]  </IRQ>
[  328.949028] RIP: 0010:dump_stack+0x358/0x39d
[  328.953437] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  328.972332] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  328.980040] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  328.987304] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  328.994572] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  329.001836] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  329.009102] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  329.016379]  ? dump_stack+0x34f/0x39d
[  329.020187]  ? dump_stack_print_info.cold.1+0x20/0x20
[  329.025373]  ? mark_held_locks+0x130/0x130
[  329.029675]  ? mark_held_locks+0x130/0x130
[  329.033930]  dump_header+0x27b/0xf72
[  329.037648]  ? pagefault_out_of_memory+0x197/0x197
[  329.042583]  ? __lock_acquire+0x62f/0x4c20
[  329.046841]  ? percpu_ref_get_many+0x240/0x240
[  329.051422]  ? print_usage_bug+0xc0/0xc0
[  329.055483]  ? zap_class+0x640/0x640
[  329.059194]  ? print_usage_bug+0xc0/0xc0
[  329.063272]  ? print_usage_bug+0xc0/0xc0
[  329.067348]  ? zap_class+0x640/0x640
[  329.071076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  329.076622]  ? find_held_lock+0x36/0x1c0
[  329.080711]  ? mark_held_locks+0xc7/0x130
[  329.084858]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  329.089969]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  329.095067]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  329.099662]  ? trace_hardirqs_on+0xbd/0x310
[  329.103981]  ? kasan_check_read+0x11/0x20
[  329.108123]  ? ___ratelimit+0x3b4/0x672
[  329.112095]  ? trace_hardirqs_off_caller+0x310/0x310
[  329.117200]  ? trace_hardirqs_on+0x310/0x310
[  329.121613]  ? lock_downgrade+0x900/0x900
[  329.125766]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  329.130867]  ? ___ratelimit+0x3b9/0x672
[  329.134842]  ? idr_get_free+0xf70/0xf70
[  329.138813]  ? find_held_lock+0x36/0x1c0
[  329.142882]  oom_kill_process.cold.27+0x10/0x903
[  329.147643]  ? zap_class+0x640/0x640
[  329.151353]  ? check_preemption_disabled+0x48/0x280
[  329.156372]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.161302]  ? kasan_check_read+0x11/0x20
[  329.165462]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.170754]  ? oom_evaluate_task+0x540/0x540
[  329.175163]  ? find_held_lock+0x36/0x1c0
[  329.179231]  ? out_of_memory+0x974/0x1430
[  329.183378]  ? lock_downgrade+0x900/0x900
[  329.187523]  ? check_preemption_disabled+0x48/0x280
[  329.192551]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.197496]  ? kasan_check_read+0x11/0x20
[  329.201641]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.206921]  ? rcu_softirq_qs+0x20/0x20
[  329.210976]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.216528]  ? oom_evaluate_task+0x302/0x540
[  329.220937]  out_of_memory+0xa84/0x1430
[  329.224938]  ? oom_killer_disable+0x3a0/0x3a0
[  329.229444]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  329.234388]  ? __ww_mutex_check_waiters+0x160/0x160
[  329.239411]  __alloc_pages_slowpath+0x2354/0x2e10
[  329.244277]  ? warn_alloc+0x120/0x120
[  329.248075]  ? mark_held_locks+0x130/0x130
[  329.252310]  ? find_get_entry+0xaae/0x1120
[  329.256550]  ? filemap_map_pages+0x1a20/0x1a20
[  329.261129]  ? zap_class+0x640/0x640
[  329.264849]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  329.270390]  ? check_preemption_disabled+0x48/0x280
[  329.275409]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.280943]  ? should_fail+0x22d/0xd01
[  329.284824]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  329.289939]  ? zap_class+0x640/0x640
[  329.293669]  ? __lock_is_held+0xb5/0x140
[  329.297762]  ? mark_held_locks+0x130/0x130
[  329.302015]  ? lock_release+0xa00/0xa00
[  329.305990]  ? perf_trace_sched_process_exec+0x860/0x860
[  329.311433]  ? xa_load+0x2ba/0x460
[  329.314966]  ? lock_downgrade+0x900/0x900
[  329.319126]  ? __might_sleep+0x95/0x190
[  329.323097]  __alloc_pages_nodemask+0xa80/0xde0
[  329.327767]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  329.332777]  ? __page_cache_alloc+0x191/0x5c0
[  329.337278]  ? xa_load+0x2e1/0x460
[  329.340812]  ? xa_clear_mark+0x40/0x40
[  329.344702]  ? zap_class+0x640/0x640
[  329.348416]  ? zap_class+0x640/0x640
[  329.352127]  ? zap_class+0x640/0x640
[  329.355863]  ? __do_page_cache_readahead+0x663/0x810
[  329.360966]  ? find_held_lock+0x36/0x1c0
[  329.365026]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  329.370564]  alloc_pages_current+0x173/0x350
[  329.374973]  __page_cache_alloc+0x38c/0x5c0
[  329.379288]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.384227]  ? kasan_check_read+0x11/0x20
[  329.388375]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.393647]  ? generic_perform_write+0x6a0/0x6a0
[  329.398399]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.403934]  ? check_preemption_disabled+0x48/0x280
[  329.409068]  filemap_fault+0x1595/0x25f0
[  329.413182]  ? __lock_page_or_retry+0xa00/0xa00
[  329.417844]  ? mark_held_locks+0x130/0x130
[  329.422078]  ? filemap_map_pages+0xd6b/0x1a20
[  329.426569]  ? lock_downgrade+0x900/0x900
[  329.430723]  ? check_preemption_disabled+0x48/0x280
[  329.435731]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.440650]  ? kasan_check_read+0x11/0x20
[  329.444790]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.450060]  ? rcu_softirq_qs+0x20/0x20
[  329.454053]  ? filemap_map_pages+0xd92/0x1a20
[  329.458559]  ? print_usage_bug+0xc0/0xc0
[  329.462649]  ? find_get_entries_tag+0x1400/0x1400
[  329.467504]  ? __kasan_slab_free+0x102/0x150
[  329.471959]  ? kasan_slab_free+0xe/0x10
[  329.475950]  ? kmem_cache_free+0x83/0x290
[  329.480093]  ? __sigqueue_free.part.29+0x74/0x90
[  329.484880]  ? lock_acquire+0x1ed/0x520
[  329.488883]  ? ext4_filemap_fault+0x7a/0xad
[  329.493241]  ? lock_release+0xa00/0xa00
[  329.497207]  ? perf_trace_sched_process_exec+0x860/0x860
[  329.502654]  ? print_usage_bug+0xc0/0xc0
[  329.506728]  ? print_usage_bug+0xc0/0xc0
[  329.510815]  ? down_read+0x8d/0x120
[  329.514449]  ? ext4_filemap_fault+0x7a/0xad
[  329.518768]  ? __down_interruptible+0x700/0x700
[  329.523440]  ext4_filemap_fault+0x82/0xad
[  329.527584]  __do_fault+0x100/0x6b0
[  329.531206]  ? pmd_devmap_trans_unstable+0x220/0x220
[  329.536342]  ? mark_held_locks+0x130/0x130
[  329.540571]  ? mark_held_locks+0x130/0x130
[  329.544800]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  329.550332]  ? rcu_pm_notify+0xc0/0xc0
[  329.554220]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.559755]  __handle_mm_fault+0x3ea0/0x5be0
[  329.564183]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  329.569035]  ? _raw_spin_unlock_irq+0x27/0x80
[  329.573528]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  329.578107]  ? trace_hardirqs_on+0xbd/0x310
[  329.582419]  ? kasan_check_read+0x11/0x20
[  329.586576]  ? __set_current_blocked+0xdf/0x120
[  329.591263]  ? trace_hardirqs_off_caller+0x310/0x310
[  329.596397]  ? zap_class+0x640/0x640
[  329.600125]  ? zap_class+0x640/0x640
[  329.603843]  ? find_held_lock+0x36/0x1c0
[  329.607936]  ? handle_mm_fault+0x42a/0xc70
[  329.612177]  ? lock_downgrade+0x900/0x900
[  329.616329]  ? check_preemption_disabled+0x48/0x280
[  329.621350]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.626279]  ? kasan_check_read+0x11/0x20
[  329.630430]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.635710]  ? rcu_softirq_qs+0x20/0x20
[  329.639682]  ? trace_hardirqs_off_caller+0x310/0x310
[  329.644791]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.650328]  ? check_preemption_disabled+0x48/0x280
[  329.655354]  handle_mm_fault+0x54f/0xc70
[  329.659427]  ? __handle_mm_fault+0x5be0/0x5be0
[  329.664024]  ? find_vma+0x34/0x190
[  329.667585]  __do_page_fault+0x5e8/0xe60
[  329.671665]  ? exit_to_usermode_loop+0x1f4/0x380
[  329.676439]  do_page_fault+0xf2/0x7e0
[  329.680240]  ? vmalloc_sync_all+0x30/0x30
[  329.684394]  ? error_entry+0x70/0xd0
[  329.688113]  ? trace_hardirqs_off_caller+0xbb/0x310
[  329.693130]  ? trace_hardirqs_on_caller+0xc0/0x310
[  329.698060]  ? syscall_return_slowpath+0x5e0/0x5e0
[  329.702993]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  329.707854]  ? trace_hardirqs_on_caller+0x310/0x310
[  329.712866]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  329.718327]  ? prepare_exit_to_usermode+0x291/0x3b0
[  329.723344]  ? page_fault+0x8/0x30
[  329.726884]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  329.731734]  ? page_fault+0x8/0x30
[  329.735278]  page_fault+0x1e/0x30
[  329.738727] RIP: 0033:0x45db60
[  329.742085] Code: Bad RIP value.
[  329.745443] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  329.750804] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  329.758069] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  329.765334] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  329.772612] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  329.779875] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  329.787170] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  329.787175] warn_alloc_show_mem: 1 callbacks suppressed
[  329.787182] Mem-Info:
[  329.794451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  329.799817] active_anon:54051 inactive_anon:192 isolated_anon:0
[  329.799817]  active_file:9 inactive_file:20 isolated_file:0
[  329.799817]  unevictable:0 dirty:0 writeback:0 unstable:0
[  329.799817]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  329.799817]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  329.799817]  free:13735 free_pcp:540 free_cma:0
[  329.802185] Call Trace:
[  329.811570] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  329.844333]  <IRQ>
[  329.846905] 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
[  329.874641]  dump_stack+0x244/0x39d
[  329.876766] lowmem_reserve[]: 0 2818 6321 6321
[  329.902865]  ? dump_stack_print_info.cold.1+0x20/0x20
[  329.906467] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  329.911074]  warn_alloc.cold.116+0xb7/0x1bd
[  329.916259] lowmem_reserve[]: 0 0 3503 3503
[  329.944007]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  329.948316] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  329.952625]  ? lock_downgrade+0x900/0x900
[  329.957439] lowmem_reserve[]: 0 0 0 0
[  329.986490]  ? trace_hardirqs_off+0xb8/0x310
[  329.990610] 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
[  329.994406]  ? trace_hardirqs_off+0xb8/0x310
[  329.998801] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  330.012329]  __alloc_pages_slowpath+0x26e8/0x2e10
[  330.016721] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  330.032009]  ? warn_alloc+0x120/0x120
[  330.036810] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  330.050955]  ? print_usage_bug+0xc0/0xc0
[  330.054729] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  330.063547]  ? warn_alloc+0x120/0x120
[  330.067578] 273 total pagecache pages
[  330.076140]  ? warn_alloc+0x120/0x120
[  330.079924] 0 pages in swap cache
[  330.083712]  ? print_usage_bug+0xc0/0xc0
[  330.083727]  ? kvm_clock_read+0x18/0x30
[  330.087504] Swap cache stats: add 0, delete 0, find 0/0
[  330.090942]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  330.094988] Free swap  = 0kB
[  330.098949]  ? print_usage_bug+0xc0/0xc0
[  330.104286] Total swap = 0kB
[  330.109309]  ? __lock_acquire+0x62f/0x4c20
[  330.112300] 1965979 pages RAM
[  330.116353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  330.119346] 0 pages HighMem/MovableOnly
[  330.123573]  ? should_fail+0x22d/0xd01
[  330.126650] 342853 pages reserved
[  330.132178]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  330.136126] 0 pages cma reserved
[  330.140031]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  330.143538] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  330.148747]  ? __lock_acquire+0x62f/0x4c20
[  330.152139] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  330.157230]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  330.163707] syz-fuzzer cpuset=/ mems_allowed=0
[  330.167940]  ? __lock_acquire+0x62f/0x4c20
[  330.167956]  ? should_fail+0x22d/0xd01
[  330.195935]  ? rcu_irq_exit+0x1a2/0x390
[  330.199927]  ? mark_held_locks+0x130/0x130
[  330.204166]  ? mark_held_locks+0x130/0x130
[  330.208433]  ? mark_held_locks+0xc7/0x130
[  330.212619]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  330.217647]  ? zap_class+0x640/0x640
[  330.221358]  ? print_usage_bug+0xc0/0xc0
[  330.225424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.230974]  ? check_preemption_disabled+0x48/0x280
[  330.236341]  ? __lock_is_held+0xb5/0x140
[  330.240416]  __alloc_pages_nodemask+0xa80/0xde0
[  330.245103]  ? zap_class+0x640/0x640
[  330.248813]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  330.253841]  ? find_held_lock+0x36/0x1c0
[  330.257926]  ? ____cache_alloc_node+0x1c7/0x1e0
[  330.262590]  ? lock_downgrade+0x900/0x900
[  330.266735]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.272267]  cache_grow_begin+0xa5/0x8c0
[  330.276320]  ? do_raw_spin_unlock+0xa7/0x330
[  330.280732]  fallback_alloc+0x204/0x2e0
[  330.284705]  ____cache_alloc_node+0x1c7/0x1e0
[  330.289235]  kmem_cache_alloc_node+0xe3/0x730
[  330.293729]  ? ipv6_get_ifaddr+0x42e/0x620
[  330.297970]  __alloc_skb+0x119/0x770
[  330.301695]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  330.307002]  ? netdev_alloc_frag+0x1f0/0x1f0
[  330.311418]  ? lock_downgrade+0x900/0x900
[  330.315571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.321105]  ? refcount_sub_and_test_checked+0x203/0x310
[  330.326549]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  330.331998]  ? addrconf_rs_timer+0x690/0x690
[  330.336413]  ndisc_alloc_skb+0x144/0x340
[  330.340474]  ndisc_send_rs+0x331/0x6e0
[  330.344362]  addrconf_rs_timer+0x314/0x690
[  330.348615]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.352860]  call_timer_fn+0x272/0x920
[  330.356756]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.360989]  ? process_timeout+0x40/0x40
[  330.365060]  ? __run_timers+0x7da/0xc70
[  330.369035]  ? _raw_spin_unlock_irq+0x27/0x80
[  330.373543]  ? _raw_spin_unlock_irq+0x27/0x80
[  330.378035]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.382283]  ? lockdep_hardirqs_on+0x296/0x5b0
[  330.386864]  ? trace_hardirqs_on+0xbd/0x310
[  330.391182]  ? kasan_check_read+0x11/0x20
[  330.395328]  ? __run_timers+0x7da/0xc70
[  330.399317]  ? trace_hardirqs_off_caller+0x310/0x310
[  330.404423]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.408659]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.412902]  __run_timers+0x7e5/0xc70
[  330.416745]  ? timer_fixup_init+0x70/0x70
[  330.420895]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  330.425923]  ? zap_class+0x640/0x640
[  330.429642]  ? enqueue_hrtimer+0x1a5/0x560
[  330.433884]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  330.439088]  ? find_held_lock+0x36/0x1c0
[  330.443150]  ? zap_class+0x640/0x640
[  330.446864]  ? pvclock_read_flags+0x160/0x160
[  330.451381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.456939]  ? check_preemption_disabled+0x48/0x280
[  330.461959]  ? __lock_is_held+0xb5/0x140
[  330.466027]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.471562]  ? check_preemption_disabled+0x48/0x280
[  330.476575]  run_timer_softirq+0x52/0xb0
[  330.480628]  ? rcu_read_lock_sched_held+0x14f/0x180
[  330.485641]  __do_softirq+0x308/0xb7e
[  330.489453]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  330.493954]  ? lock_downgrade+0x900/0x900
[  330.498103]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  330.503211]  ? pvclock_read_flags+0x160/0x160
[  330.507703]  ? lapic_next_event+0x5a/0x90
[  330.511862]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.517398]  ? kvm_clock_read+0x18/0x30
[  330.521365]  ? kvm_sched_clock_read+0x9/0x20
[  330.525770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.531303]  ? check_preemption_disabled+0x48/0x280
[  330.536326]  irq_exit+0x17f/0x1c0
[  330.539804]  smp_apic_timer_interrupt+0x1cb/0x760
[  330.544665]  ? smp_reschedule_interrupt+0x109/0x650
[  330.549677]  ? smp_call_function_single_interrupt+0x650/0x650
[  330.555556]  ? interrupt_entry+0xb5/0xc0
[  330.559628]  ? trace_hardirqs_off_caller+0xbb/0x310
[  330.564652]  ? trace_hardirqs_off_caller+0xbb/0x310
[  330.569662]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  330.574505]  ? trace_hardirqs_on_caller+0x310/0x310
[  330.579546]  ? trace_hardirqs_on_caller+0x310/0x310
[  330.584555]  ? task_prio+0x50/0x50
[  330.588092]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.593640]  ? check_preemption_disabled+0x48/0x280
[  330.598721]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  330.603579]  apic_timer_interrupt+0xf/0x20
[  330.607823]  </IRQ>
[  330.610063] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  330.614990] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  330.633887] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  330.641601] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  330.648867] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  330.656143] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  330.663412] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  330.670677] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  330.677982]  skb_clone+0x1bb/0x500
[  330.681523]  ? finish_task_switch+0x2f4/0x910
[  330.686021]  ? skb_split+0x11e0/0x11e0
[  330.689926]  ? preempt_notifier_register+0x200/0x200
[  330.695035]  ? __switch_to_asm+0x34/0x70
[  330.699096]  ? __switch_to_asm+0x34/0x70
[  330.703158]  ? __switch_to_asm+0x40/0x70
[  330.707222]  ? __switch_to_asm+0x34/0x70
[  330.711279]  ? __switch_to_asm+0x40/0x70
[  330.715337]  ? __switch_to_asm+0x34/0x70
[  330.719396]  ? __switch_to_asm+0x40/0x70
[  330.723452]  ? __switch_to_asm+0x34/0x70
[  330.727513]  ? __switch_to_asm+0x34/0x70
[  330.731574]  ? __switch_to_asm+0x40/0x70
[  330.735646]  ? __switch_to_asm+0x34/0x70
[  330.739710]  bpf_clone_redirect+0xb9/0x490
[  330.743963]  ? __schedule+0x8d7/0x21d0
[  330.747858]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  330.752878]  ? __sched_text_start+0x8/0x8
[  330.757044]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  330.761806]  ? find_held_lock+0x36/0x1c0
[  330.765889]  ? lock_acquire+0x1ed/0x520
[  330.769873]  ? bpf_test_run+0x3cb/0x780
[  330.773851]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.779403]  ? check_preemption_disabled+0x48/0x280
[  330.784433]  ? kasan_check_read+0x11/0x20
[  330.788580]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  330.793851]  ? rcu_softirq_qs+0x20/0x20
[  330.797826]  ? preempt_schedule+0x4d/0x60
[  330.801974]  ? ___preempt_schedule+0x16/0x18
[  330.806387]  ? bpf_test_run+0x25d/0x780
[  330.810371]  ? netlink_diag_dump+0x2a0/0x2a0
[  330.814794]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  330.820329]  ? bpf_test_init.isra.10+0x70/0x100
[  330.825020]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  330.829791]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  330.834645]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  330.840207]  ? fput+0x130/0x1a0
[  330.843486]  ? __bpf_prog_get+0x9b/0x290
[  330.847552]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  330.852407]  ? bpf_prog_test_run+0x130/0x1a0
[  330.856820]  ? __x64_sys_bpf+0x3d8/0x520
[  330.860877]  ? bpf_prog_get+0x20/0x20
[  330.864731]  ? do_syscall_64+0x1b9/0x820
[  330.868799]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  330.874168]  ? syscall_return_slowpath+0x5e0/0x5e0
[  330.879102]  ? trace_hardirqs_on_caller+0x310/0x310
[  330.884133]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  330.889172]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  330.895846]  ? __switch_to_asm+0x40/0x70
[  330.899927]  ? __switch_to_asm+0x34/0x70
[  330.904006]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  330.908850]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  330.914229] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  330.914261] rcu: INFO: rcu_preempt self-detected stall on CPU
[  330.921267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  330.921275] Call Trace:
[  330.927388] rcu: 	0-...!: (1 GPs behind) idle=dce/1/0x4000000000000004 softirq=13280/13281 fqs=0 
[  330.936476]  <IRQ>
[  330.936494]  dump_stack+0x244/0x39d
[  330.936511]  ? dump_stack_print_info.cold.1+0x20/0x20
[  330.936536]  warn_alloc.cold.116+0xb7/0x1bd
[  330.936551]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  330.936569]  ? lock_downgrade+0x900/0x900
[  330.936589]  ? trace_hardirqs_off+0xb8/0x310
[  330.936608]  ? trace_hardirqs_off+0xb8/0x310
[  330.936628]  __alloc_pages_slowpath+0x26e8/0x2e10
[  330.939448] rcu: 	 (t=10650 jiffies g=14517 q=10)
[  330.948476]  ? warn_alloc+0x120/0x120
[  330.950591] rcu: rcu_preempt kthread starved for 10650 jiffies! g14517 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[  330.954201]  ? print_usage_bug+0xc0/0xc0
[  330.959367] rcu: RCU grace-period kthread stack dump:
[  330.963706]  ? warn_alloc+0x120/0x120
[  330.968539] rcu_preempt     R  running task    23000    10      2 0x80000000
[  330.972685]  ? warn_alloc+0x120/0x120
[  330.977071] Call Trace:
[  330.981475]  ? print_usage_bug+0xc0/0xc0
[  330.986300]  __schedule+0x8cf/0x21d0
[  330.991123]  ? print_usage_bug+0xc0/0xc0
[  330.994916]  ? __sched_text_start+0x8/0x8
[  331.005378]  ? __lock_acquire+0x62f/0x4c20
[  331.009455]  ? add_timer_on+0xa20/0xa20
[  331.014645]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.018425]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  331.025598]  ? should_fail+0x22d/0xd01
[  331.029381]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  331.031953]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  331.036001]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  331.039702]  ? __lock_acquire+0x62f/0x4c20
[  331.043739]  ? trace_hardirqs_on+0xbd/0x310
[  331.047955]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  331.052190]  ? kasan_check_read+0x11/0x20
[  331.056147]  ? __lock_acquire+0x62f/0x4c20
[  331.061669]  ? prepare_to_swait_event+0x25a/0x800
[  331.066762]  ? should_fail+0x22d/0xd01
[  331.070656]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.075752]  ? find_held_lock+0x36/0x1c0
[  331.080870]  schedule+0xfe/0x460
[  331.085432]  ? mark_held_locks+0x130/0x130
[  331.089645]  ? __schedule+0x21d0/0x21d0
[  331.093966]  ? mark_held_locks+0x130/0x130
[  331.099055]  ? prepare_to_swait_event+0x25a/0x800
[  331.103184]  ? zap_class+0x640/0x640
[  331.107407]  ? __init_swait_queue_head+0x150/0x150
[  331.112230]  ? zap_class+0x640/0x640
[  331.116117]  ? __lockdep_init_map+0x105/0x590
[  331.121209]  ? print_usage_bug+0xc0/0xc0
[  331.125262]  ? lockdep_init_map+0x9/0x10
[  331.128609]  ? do_raw_spin_unlock+0xa7/0x330
[  331.132826]  schedule_timeout+0x140/0x260
[  331.136778]  ? zap_class+0x640/0x640
[  331.141021]  ? usleep_range+0x1a0/0x1a0
[  331.145844]  ? print_usage_bug+0xc0/0xc0
[  331.149538]  ? __next_timer_interrupt+0x1a0/0x1a0
[  331.154450]  ? wq_watchdog_touch+0x9c/0xfe
[  331.158160]  rcu_gp_fqs_loop+0x762/0xa80
[  331.162632]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.166678]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  331.170725]  ? check_preemption_disabled+0x48/0x280
[  331.175113]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.179262]  ? __lock_is_held+0xb5/0x140
[  331.182955]  ? perf_trace_sched_process_exec+0x860/0x860
[  331.186919]  __alloc_pages_nodemask+0xa80/0xde0
[  331.191013]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.195836]  ? zap_class+0x640/0x640
[  331.200061]  ? rcu_gp_init+0x90b/0x1260
[  331.204104]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  331.209626]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  331.214366]  ? find_held_lock+0x36/0x1c0
[  331.219359]  ? rcu_accelerate_cbs+0x10a/0xae0
[  331.224447]  ? ____cache_alloc_node+0x1c7/0x1e0
[  331.228505]  ? zap_class+0x640/0x640
[  331.233940]  ? lock_downgrade+0x900/0x900
[  331.238592]  ? zap_class+0x640/0x640
[  331.244126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.247827]  ? __lock_is_held+0xb5/0x140
[  331.251778]  cache_grow_begin+0xa5/0x8c0
[  331.256779]  ? __lock_is_held+0xb5/0x140
[  331.261517]  ? do_raw_spin_unlock+0xa7/0x330
[  331.265572]  ? zap_class+0x640/0x640
[  331.270053]  fallback_alloc+0x204/0x2e0
[  331.274702]  ? rcu_accelerate_cbs+0x10a/0xae0
[  331.278409]  ____cache_alloc_node+0x1c7/0x1e0
[  331.282543]  ? find_held_lock+0x36/0x1c0
[  331.286236]  kmem_cache_alloc_node+0xe3/0x730
[  331.291768]  ? rcu_gp_kthread+0x8cf/0xc70
[  331.295810]  ? ipv6_get_ifaddr+0x42e/0x620
[  331.299870]  ? _raw_spin_unlock_irq+0x27/0x80
[  331.303926]  __alloc_skb+0x119/0x770
[  331.308309]  ? _raw_spin_unlock_irq+0x27/0x80
[  331.312008]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  331.315970]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  331.320453]  ? netdev_alloc_frag+0x1f0/0x1f0
[  331.324936]  ? trace_hardirqs_on+0xbd/0x310
[  331.328979]  ? lock_downgrade+0x900/0x900
[  331.333461]  ? kasan_check_read+0x11/0x20
[  331.337593]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.341808]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.346284]  ? refcount_sub_and_test_checked+0x203/0x310
[  331.349976]  ? perf_trace_sched_process_exec+0x860/0x860
[  331.354453]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  331.359708]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.359730]  rcu_gp_kthread+0x341/0xc70
[  331.364311]  ? addrconf_rs_timer+0x690/0x690
[  331.368723]  ? rcu_gp_init+0x1260/0x1260
[  331.373036]  ndisc_alloc_skb+0x144/0x340
[  331.377164]  ? mark_held_locks+0x130/0x130
[  331.381292]  ndisc_send_rs+0x331/0x6e0
[  331.386812]  ? __schedule+0x168a/0x21d0
[  331.391909]  addrconf_rs_timer+0x314/0x690
[  331.397338]  ? _raw_spin_unlock_irq+0x27/0x80
[  331.402772]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.408209]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  331.413747]  call_timer_fn+0x272/0x920
[  331.417701]  ? trace_hardirqs_on+0xbd/0x310
[  331.422099]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.426161]  ? kasan_check_read+0x11/0x20
[  331.430209]  ? process_timeout+0x40/0x40
[  331.434429]  ? __schedule+0x168a/0x21d0
[  331.438305]  ? mark_held_locks+0xc7/0x130
[  331.442264]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.446479]  ? _raw_spin_unlock_irq+0x27/0x80
[  331.450973]  ? lock_pin_lock+0x350/0x350
[  331.455189]  ? _raw_spin_unlock_irq+0x27/0x80
[  331.459764]  ? _raw_spin_unlock_irq+0x60/0x80
[  331.463640]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.467944]  ? __schedule+0x168a/0x21d0
[  331.472163]  ? lockdep_hardirqs_on+0x296/0x5b0
[  331.476295]  ? __switch_to_asm+0x40/0x70
[  331.480340]  ? trace_hardirqs_on+0xbd/0x310
[  331.484295]  ? __switch_to_asm+0x40/0x70
[  331.488429]  ? kasan_check_read+0x11/0x20
[  331.493515]  ? show_schedstat+0x731/0xf30
[  331.497996]  ? __run_timers+0x7da/0xc70
[  331.502053]  ? __sched_text_start+0x8/0x8
[  331.506529]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.511011]  ? find_held_lock+0x36/0x1c0
[  331.515225]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.519197]  ? __kthread_parkme+0xce/0x1a0
[  331.523753]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.527811]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  331.532125]  __run_timers+0x7e5/0xc70
[  331.536172]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  331.540311]  ? timer_fixup_init+0x70/0x70
[  331.544441]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  331.548409]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  331.552538]  ? trace_hardirqs_on+0xbd/0x310
[  331.557623]  ? zap_class+0x640/0x640
[  331.561685]  ? kasan_check_read+0x11/0x20
[  331.565911]  ? print_usage_bug+0xc0/0xc0
[  331.570145]  ? __kthread_parkme+0xce/0x1a0
[  331.574363]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  331.579450]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.583237]  ? find_held_lock+0x36/0x1c0
[  331.588326]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  331.592451]  ? zap_class+0x640/0x640
[  331.597032]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.602033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.606339]  ? __kthread_parkme+0xfb/0x1a0
[  331.610037]  ? check_preemption_disabled+0x48/0x280
[  331.614164]  ? rcu_gp_init+0x1260/0x1260
[  331.618214]  ? __lock_is_held+0xb5/0x140
[  331.622444]  kthread+0x35a/0x440
[  331.627632]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.632730]  ? kthread_stop+0x900/0x900
[  331.636785]  ? check_preemption_disabled+0x48/0x280
[  331.641872]  ret_from_fork+0x3a/0x50
[  331.645571]  run_timer_softirq+0x52/0xb0
[  331.651101] NMI backtrace for cpu 0
[  331.656625]  ? rcu_read_lock_sched_held+0x14f/0x180
[  331.708195]  __do_softirq+0x308/0xb7e
[  331.712004]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  331.716502]  ? lock_downgrade+0x900/0x900
[  331.720651]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  331.725756]  ? pvclock_read_flags+0x160/0x160
[  331.730248]  ? lapic_next_event+0x5a/0x90
[  331.734409]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.739948]  ? kvm_clock_read+0x18/0x30
[  331.744100]  ? kvm_sched_clock_read+0x9/0x20
[  331.748544]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.754079]  ? check_preemption_disabled+0x48/0x280
[  331.759103]  irq_exit+0x17f/0x1c0
[  331.762551]  smp_apic_timer_interrupt+0x1cb/0x760
[  331.767387]  ? smp_reschedule_interrupt+0x109/0x650
[  331.772398]  ? smp_call_function_single_interrupt+0x650/0x650
[  331.778278]  ? interrupt_entry+0xb5/0xc0
[  331.782373]  ? trace_hardirqs_off_caller+0xbb/0x310
[  331.787394]  ? trace_hardirqs_off_caller+0xbb/0x310
[  331.792429]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  331.797270]  ? trace_hardirqs_on_caller+0x310/0x310
[  331.802281]  ? trace_hardirqs_on_caller+0x310/0x310
[  331.807328]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  331.812179]  apic_timer_interrupt+0xf/0x20
[  331.816417]  </IRQ>
[  331.818653] RIP: 0010:dump_stack+0x358/0x39d
[  331.823076] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  331.841973] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  331.849680] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  331.856947] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  331.864231] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  331.871497] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  331.879240] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  331.886547]  ? dump_stack+0x34f/0x39d
[  331.890358]  ? dump_stack_print_info.cold.1+0x20/0x20
[  331.895547]  ? mark_held_locks+0x130/0x130
[  331.899777]  ? mark_held_locks+0x130/0x130
[  331.904012]  dump_header+0x27b/0xf72
[  331.907732]  ? pagefault_out_of_memory+0x197/0x197
[  331.912663]  ? __lock_acquire+0x62f/0x4c20
[  331.916903]  ? percpu_ref_get_many+0x240/0x240
[  331.921486]  ? print_usage_bug+0xc0/0xc0
[  331.925544]  ? zap_class+0x640/0x640
[  331.929257]  ? print_usage_bug+0xc0/0xc0
[  331.933317]  ? print_usage_bug+0xc0/0xc0
[  331.937376]  ? zap_class+0x640/0x640
[  331.941090]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.946661]  ? find_held_lock+0x36/0x1c0
[  331.950744]  ? mark_held_locks+0xc7/0x130
[  331.954890]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  331.960031]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  331.965137]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  331.969725]  ? trace_hardirqs_on+0xbd/0x310
[  331.974048]  ? kasan_check_read+0x11/0x20
[  331.978193]  ? ___ratelimit+0x3b4/0x672
[  331.982164]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.987266]  ? trace_hardirqs_on+0x310/0x310
[  331.991671]  ? lock_downgrade+0x900/0x900
[  331.995841]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  332.000976]  ? ___ratelimit+0x3b9/0x672
[  332.004954]  ? idr_get_free+0xf70/0xf70
[  332.008954]  ? find_held_lock+0x36/0x1c0
[  332.013038]  oom_kill_process.cold.27+0x10/0x903
[  332.017794]  ? zap_class+0x640/0x640
[  332.021508]  ? check_preemption_disabled+0x48/0x280
[  332.026538]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  332.031465]  ? kasan_check_read+0x11/0x20
[  332.035610]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  332.040882]  ? oom_evaluate_task+0x540/0x540
[  332.045314]  ? find_held_lock+0x36/0x1c0
[  332.049380]  ? out_of_memory+0x974/0x1430
[  332.053524]  ? lock_downgrade+0x900/0x900
[  332.057670]  ? check_preemption_disabled+0x48/0x280
[  332.062688]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  332.067619]  ? kasan_check_read+0x11/0x20
[  332.071761]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  332.077034]  ? rcu_softirq_qs+0x20/0x20
[  332.081015]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  332.086545]  ? oom_evaluate_task+0x302/0x540
[  332.090955]  out_of_memory+0xa84/0x1430
[  332.094943]  ? oom_killer_disable+0x3a0/0x3a0
[  332.099436]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  332.104391]  ? __ww_mutex_check_waiters+0x160/0x160
[  332.109419]  __alloc_pages_slowpath+0x2354/0x2e10
[  332.114313]  ? warn_alloc+0x120/0x120
[  332.118113]  ? mark_held_locks+0x130/0x130
[  332.122354]  ? find_get_entry+0xaae/0x1120
[  332.126599]  ? filemap_map_pages+0x1a20/0x1a20
[  332.131186]  ? zap_class+0x640/0x640
[  332.134911]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.140464]  ? check_preemption_disabled+0x48/0x280
[  332.145490]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  332.151025]  ? should_fail+0x22d/0xd01
[  332.154926]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  332.160033]  ? zap_class+0x640/0x640
[  332.163768]  ? __lock_is_held+0xb5/0x140
[  332.167835]  ? mark_held_locks+0x130/0x130
[  332.172097]  ? lock_release+0xa00/0xa00
[  332.176072]  ? perf_trace_sched_process_exec+0x860/0x860
[  332.181521]  ? xa_load+0x2ba/0x460
[  332.185070]  ? lock_downgrade+0x900/0x900
[  332.189222]  ? __might_sleep+0x95/0x190
[  332.193219]  __alloc_pages_nodemask+0xa80/0xde0
[  332.197894]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  332.202925]  ? __page_cache_alloc+0x191/0x5c0
[  332.207419]  ? xa_load+0x2e1/0x460
[  332.210969]  ? xa_clear_mark+0x40/0x40
[  332.214857]  ? zap_class+0x640/0x640
[  332.218578]  ? zap_class+0x640/0x640
[  332.222291]  ? zap_class+0x640/0x640
[  332.226006]  ? __do_page_cache_readahead+0x663/0x810
[  332.231112]  ? find_held_lock+0x36/0x1c0
[  332.235178]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  332.240738]  alloc_pages_current+0x173/0x350
[  332.245152]  __page_cache_alloc+0x38c/0x5c0
[  332.249472]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  332.254401]  ? kasan_check_read+0x11/0x20
[  332.258554]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  332.263831]  ? generic_perform_write+0x6a0/0x6a0
[  332.268585]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  332.274124]  ? check_preemption_disabled+0x48/0x280
[  332.279144]  filemap_fault+0x1595/0x25f0
[  332.283217]  ? __lock_page_or_retry+0xa00/0xa00
[  332.287906]  ? mark_held_locks+0x130/0x130
[  332.292146]  ? filemap_map_pages+0xd6b/0x1a20
[  332.296637]  ? lock_downgrade+0x900/0x900
[  332.300781]  ? check_preemption_disabled+0x48/0x280
[  332.305812]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  332.310735]  ? kasan_check_read+0x11/0x20
[  332.314896]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  332.320196]  ? rcu_softirq_qs+0x20/0x20
[  332.324181]  ? filemap_map_pages+0xd92/0x1a20
[  332.328678]  ? print_usage_bug+0xc0/0xc0
[  332.332749]  ? find_get_entries_tag+0x1400/0x1400
[  332.337602]  ? __kasan_slab_free+0x102/0x150
[  332.342004]  ? kasan_slab_free+0xe/0x10
[  332.345976]  ? kmem_cache_free+0x83/0x290
[  332.350137]  ? __sigqueue_free.part.29+0x74/0x90
[  332.354915]  ? lock_acquire+0x1ed/0x520
[  332.358890]  ? ext4_filemap_fault+0x7a/0xad
[  332.363237]  ? lock_release+0xa00/0xa00
[  332.367222]  ? perf_trace_sched_process_exec+0x860/0x860
[  332.372672]  ? print_usage_bug+0xc0/0xc0
[  332.376751]  ? print_usage_bug+0xc0/0xc0
[  332.380849]  ? down_read+0x8d/0x120
[  332.384479]  ? ext4_filemap_fault+0x7a/0xad
[  332.388830]  ? __down_interruptible+0x700/0x700
[  332.393502]  ext4_filemap_fault+0x82/0xad
[  332.397650]  __do_fault+0x100/0x6b0
[  332.401282]  ? pmd_devmap_trans_unstable+0x220/0x220
[  332.406388]  ? mark_held_locks+0x130/0x130
[  332.410619]  ? mark_held_locks+0x130/0x130
[  332.414861]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  332.420413]  ? rcu_pm_notify+0xc0/0xc0
[  332.424322]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  332.429891]  __handle_mm_fault+0x3ea0/0x5be0
[  332.434317]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  332.439182]  ? _raw_spin_unlock_irq+0x27/0x80
[  332.443680]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  332.448266]  ? trace_hardirqs_on+0xbd/0x310
[  332.452602]  ? kasan_check_read+0x11/0x20
[  332.456749]  ? __set_current_blocked+0xdf/0x120
[  332.461420]  ? trace_hardirqs_off_caller+0x310/0x310
[  332.466531]  ? zap_class+0x640/0x640
[  332.470244]  ? zap_class+0x640/0x640
[  332.473962]  ? find_held_lock+0x36/0x1c0
[  332.478029]  ? handle_mm_fault+0x42a/0xc70
[  332.482265]  ? lock_downgrade+0x900/0x900
[  332.486410]  ? check_preemption_disabled+0x48/0x280
[  332.491470]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  332.496396]  ? kasan_check_read+0x11/0x20
[  332.500544]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  332.505818]  ? rcu_softirq_qs+0x20/0x20
[  332.509789]  ? trace_hardirqs_off_caller+0x310/0x310
[  332.514908]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  332.520442]  ? check_preemption_disabled+0x48/0x280
[  332.525462]  handle_mm_fault+0x54f/0xc70
[  332.529536]  ? __handle_mm_fault+0x5be0/0x5be0
[  332.534137]  ? find_vma+0x34/0x190
[  332.537720]  __do_page_fault+0x5e8/0xe60
[  332.541776]  ? exit_to_usermode_loop+0x1f4/0x380
[  332.546534]  do_page_fault+0xf2/0x7e0
[  332.550329]  ? vmalloc_sync_all+0x30/0x30
[  332.554478]  ? error_entry+0x70/0xd0
[  332.558189]  ? trace_hardirqs_off_caller+0xbb/0x310
[  332.563215]  ? trace_hardirqs_on_caller+0xc0/0x310
[  332.568158]  ? syscall_return_slowpath+0x5e0/0x5e0
[  332.573143]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  332.577995]  ? trace_hardirqs_on_caller+0x310/0x310
[  332.583017]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  332.588483]  ? prepare_exit_to_usermode+0x291/0x3b0
[  332.593511]  ? page_fault+0x8/0x30
[  332.597072]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  332.601934]  ? page_fault+0x8/0x30
[  332.605476]  page_fault+0x1e/0x30
[  332.608939] RIP: 0033:0x45db60
[  332.612149] Code: Bad RIP value.
[  332.615507] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  332.620881] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  332.628150] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  332.635454] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  332.642719] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  332.649985] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  332.657274] warn_alloc_show_mem: 1 callbacks suppressed
[  332.657287] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  332.657288] Mem-Info:
[  332.657333] active_anon:54051 inactive_anon:192 isolated_anon:0
[  332.657333]  active_file:9 inactive_file:20 isolated_file:0
[  332.657333]  unevictable:0 dirty:0 writeback:0 unstable:0
[  332.657333]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  332.657333]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  332.657333]  free:13735 free_pcp:540 free_cma:0
[  332.662671] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  332.669948] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  332.672359] Call Trace:
[  332.705134] 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
[  332.714480]  <IRQ>
[  332.741864] lowmem_reserve[]: 0 2818 6321 6321
[  332.741875] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  332.741895] lowmem_reserve[]: 0 0 3503 3503
[  332.744515]  dump_stack+0x244/0x39d
[  332.770597] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  332.772754]  ? dump_stack_print_info.cold.1+0x20/0x20
[  332.777321] lowmem_reserve[]: 0 0 0 0
[  332.805076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.809382] 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
[  332.813001]  ? do_raw_spin_lock+0x14f/0x350
[  332.842073] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  332.847259]  nmi_cpu_backtrace.cold.2+0x5c/0xa1
[  332.851044] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  332.856572]  ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f
[  332.870074] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  332.874384]  nmi_trigger_cpumask_backtrace+0x1e8/0x22a
[  332.889619] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  332.894274]  arch_trigger_cpumask_backtrace+0x14/0x20
[  332.908394] 273 total pagecache pages
[  332.913591]  rcu_dump_cpu_stacks+0x16f/0x1bc
[  332.922415] 0 pages in swap cache
[  332.927696]  print_cpu_stall.cold.67+0x1f3/0x3c7
[  332.936280] Swap cache stats: add 0, delete 0, find 0/0
[  332.941453]  ? print_other_cpu_stall+0x160/0x160
[  332.945226] Free swap  = 0kB
[  332.945233] Total swap = 0kB
[  332.949633]  ? print_usage_bug+0xc0/0xc0
[  332.953059] 1965979 pages RAM
[  332.957801]  ? kasan_check_read+0x11/0x20
[  332.963136] 0 pages HighMem/MovableOnly
[  332.967880]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.970870] 342853 pages reserved
[  332.973880]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.977920] 0 pages cma reserved
[  332.981034]  ? do_trace_rcu_torture_read+0x10/0x10
[  332.985231] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  332.989149]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  332.994770] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  332.998121]  ? __lock_is_held+0xb5/0x140
[  333.003632] syz-fuzzer cpuset=/ mems_allowed=0
[  333.006998]  ? __rcu_read_lock+0x50/0x50
[  333.046579]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.052131]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.057667]  ? check_preemption_disabled+0x48/0x280
[  333.062727]  rcu_check_callbacks+0xf3b/0x13f0
[  333.067229]  ? rcutree_dead_cpu+0x10/0x10
[  333.071390]  ? lock_downgrade+0x900/0x900
[  333.075548]  ? lock_release+0x940/0xa00
[  333.079542]  ? zap_class+0x640/0x640
[  333.083249]  ? mark_held_locks+0x130/0x130
[  333.087501]  ? zap_class+0x640/0x640
[  333.091234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.096769]  ? pvclock_gtod_notify+0x2e3/0x3e0
[  333.101354]  ? kvm_set_tsc_khz+0x540/0x540
[  333.105590]  ? warn_alloc.cold.116+0xd1/0x1bd
[  333.110092]  ? find_held_lock+0x36/0x1c0
[  333.114156]  ? zap_class+0x640/0x640
[  333.117872]  ? timekeeping_advance+0x3cc/0xc00
[  333.122465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.128004]  ? check_preemption_disabled+0x48/0x280
[  333.133039]  ? trace_hardirqs_off+0xb8/0x310
[  333.137453]  ? __lock_is_held+0xb5/0x140
[  333.141519]  ? trace_hardirqs_on+0x310/0x310
[  333.145937]  ? check_preemption_disabled+0x48/0x280
[  333.150976]  ? raise_softirq+0x199/0x420
[  333.155041]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  333.159729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.165268]  ? check_preemption_disabled+0x48/0x280
[  333.170286]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  333.175820]  ? hrtimer_run_queues+0x9a/0x400
[  333.180247]  ? run_local_timers+0x19b/0x230
[  333.184583]  ? timer_clear_idle+0x90/0x90
[  333.188733]  ? debug_smp_processor_id+0x1c/0x20
[  333.193402]  ? irqtime_account_process_tick.isra.6+0x114/0x490
[  333.199376]  ? account_process_tick+0x282/0x350
[  333.204051]  update_process_times+0x2d/0x70
[  333.208376]  tick_sched_handle+0x9f/0x180
[  333.212528]  tick_sched_timer+0x45/0x130
[  333.216593]  __hrtimer_run_queues+0x41c/0x10d0
[  333.221182]  ? tick_sched_do_timer+0x1a0/0x1a0
[  333.225773]  ? hrtimer_start_range_ns+0xe00/0xe00
[  333.230627]  ? pvclock_read_flags+0x160/0x160
[  333.235142]  ? trace_hardirqs_on+0x310/0x310
[  333.239558]  ? kvm_clock_read+0x18/0x30
[  333.243534]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  333.248562]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  333.253935]  ? do_timer+0x50/0x50
[  333.257404]  ? rwlock_bug.part.2+0x90/0x90
[  333.261652]  ? trace_hardirqs_on+0x310/0x310
[  333.266061]  ? rcu_softirq_qs+0x20/0x20
[  333.270063]  hrtimer_interrupt+0x313/0x780
[  333.274328]  smp_apic_timer_interrupt+0x1a1/0x760
[  333.279170]  ? smp_call_function_single_interrupt+0x650/0x650
[  333.285056]  ? interrupt_entry+0xb5/0xc0
[  333.289120]  ? trace_hardirqs_off_caller+0xbb/0x310
[  333.294165]  ? ____cache_alloc_node+0x1c7/0x1e0
[  333.298836]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  333.303781]  ? trace_hardirqs_on_caller+0x310/0x310
[  333.308810]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  333.313664]  apic_timer_interrupt+0xf/0x20
[  333.317909] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  333.323271] Code: 3f 7e 0f 85 32 ff ff ff e8 e5 1c 3e ff e9 28 ff ff ff e8 4c 52 c3 ff 48 83 3d 64 9b 8f 07 00 0f 84 33 01 00 00 4c 89 ff 57 9d <0f> 1f 44 00 00 e9 bf fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  333.342169] RSP: 0000:ffff8801dae07450 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  333.349883] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003756c1d1
[  333.357156] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
[  333.364421] RBP: ffff8801dae074c0 R08: ffff8801bab60e88 R09: 0000000000000002
[  333.371701] R10: 0000000000000000 R11: ffff8801bab605c0 R12: ffff8801d9bee600
[  333.378970] R13: ffff8801d9bee600 R14: 0000000000000000 R15: 0000000000000286
[  333.386250]  ? apic_timer_interrupt+0xa/0x20
[  333.390676]  ? ipv6_get_ifaddr+0x42e/0x620
[  333.394933]  __alloc_skb+0x119/0x770
[  333.398647]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  333.403936]  ? netdev_alloc_frag+0x1f0/0x1f0
[  333.408348]  ? lock_downgrade+0x900/0x900
[  333.412519]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.418058]  ? refcount_sub_and_test_checked+0x203/0x310
[  333.423516]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  333.428967]  ? addrconf_rs_timer+0x690/0x690
[  333.433386]  ndisc_alloc_skb+0x144/0x340
[  333.437479]  ndisc_send_rs+0x331/0x6e0
[  333.441391]  addrconf_rs_timer+0x314/0x690
[  333.445635]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.449880]  call_timer_fn+0x272/0x920
[  333.453773]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.458006]  ? process_timeout+0x40/0x40
[  333.462072]  ? __run_timers+0x7da/0xc70
[  333.466047]  ? _raw_spin_unlock_irq+0x27/0x80
[  333.470539]  ? _raw_spin_unlock_irq+0x27/0x80
[  333.475028]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.479258]  ? lockdep_hardirqs_on+0x296/0x5b0
[  333.483838]  ? trace_hardirqs_on+0xbd/0x310
[  333.488158]  ? kasan_check_read+0x11/0x20
[  333.492307]  ? __run_timers+0x7da/0xc70
[  333.496285]  ? trace_hardirqs_off_caller+0x310/0x310
[  333.501393]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.505631]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.509861]  __run_timers+0x7e5/0xc70
[  333.513666]  ? timer_fixup_init+0x70/0x70
[  333.517818]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  333.522853]  ? zap_class+0x640/0x640
[  333.526567]  ? enqueue_hrtimer+0x1a5/0x560
[  333.530813]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  333.536003]  ? find_held_lock+0x36/0x1c0
[  333.540067]  ? zap_class+0x640/0x640
[  333.543787]  ? pvclock_read_flags+0x160/0x160
[  333.548291]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.553828]  ? check_preemption_disabled+0x48/0x280
[  333.558846]  ? __lock_is_held+0xb5/0x140
[  333.562911]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.568509]  ? check_preemption_disabled+0x48/0x280
[  333.573523]  run_timer_softirq+0x52/0xb0
[  333.577580]  ? rcu_read_lock_sched_held+0x14f/0x180
[  333.582606]  __do_softirq+0x308/0xb7e
[  333.586436]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  333.590935]  ? lock_downgrade+0x900/0x900
[  333.595083]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  333.600198]  ? pvclock_read_flags+0x160/0x160
[  333.604698]  ? lapic_next_event+0x5a/0x90
[  333.608877]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.614429]  ? kvm_clock_read+0x18/0x30
[  333.618406]  ? kvm_sched_clock_read+0x9/0x20
[  333.622818]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.628353]  ? check_preemption_disabled+0x48/0x280
[  333.633379]  irq_exit+0x17f/0x1c0
[  333.636876]  smp_apic_timer_interrupt+0x1cb/0x760
[  333.641722]  ? smp_reschedule_interrupt+0x109/0x650
[  333.646739]  ? smp_call_function_single_interrupt+0x650/0x650
[  333.652631]  ? interrupt_entry+0xb5/0xc0
[  333.656693]  ? trace_hardirqs_off_caller+0xbb/0x310
[  333.661722]  ? trace_hardirqs_off_caller+0xbb/0x310
[  333.666739]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  333.671581]  ? trace_hardirqs_on_caller+0x310/0x310
[  333.676598]  ? trace_hardirqs_on_caller+0x310/0x310
[  333.681632]  ? task_prio+0x50/0x50
[  333.685175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.690721]  ? check_preemption_disabled+0x48/0x280
[  333.695756]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  333.700621]  apic_timer_interrupt+0xf/0x20
[  333.704848]  </IRQ>
[  333.707089] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  333.712031] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  333.730931] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  333.738645] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  333.746130] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  333.753420] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  333.760713] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  333.768000] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  333.775307]  skb_clone+0x1bb/0x500
[  333.778852]  ? finish_task_switch+0x2f4/0x910
[  333.783362]  ? skb_split+0x11e0/0x11e0
[  333.787255]  ? preempt_notifier_register+0x200/0x200
[  333.792384]  ? __switch_to_asm+0x34/0x70
[  333.796442]  ? __switch_to_asm+0x34/0x70
[  333.800500]  ? __switch_to_asm+0x40/0x70
[  333.804574]  ? __switch_to_asm+0x34/0x70
[  333.808634]  ? __switch_to_asm+0x40/0x70
[  333.812692]  ? __switch_to_asm+0x34/0x70
[  333.816769]  ? __switch_to_asm+0x40/0x70
[  333.820826]  ? __switch_to_asm+0x34/0x70
[  333.824907]  ? __switch_to_asm+0x34/0x70
[  333.828981]  ? __switch_to_asm+0x40/0x70
[  333.833050]  ? __switch_to_asm+0x34/0x70
[  333.837114]  bpf_clone_redirect+0xb9/0x490
[  333.841354]  ? __schedule+0x8d7/0x21d0
[  333.845249]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  333.850294]  ? __sched_text_start+0x8/0x8
[  333.854441]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  333.859221]  ? find_held_lock+0x36/0x1c0
[  333.863293]  ? lock_acquire+0x1ed/0x520
[  333.867288]  ? bpf_test_run+0x3cb/0x780
[  333.871273]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.877229]  ? check_preemption_disabled+0x48/0x280
[  333.882263]  ? kasan_check_read+0x11/0x20
[  333.886416]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  333.891706]  ? rcu_softirq_qs+0x20/0x20
[  333.895682]  ? preempt_schedule+0x4d/0x60
[  333.899830]  ? ___preempt_schedule+0x16/0x18
[  333.904245]  ? bpf_test_run+0x25d/0x780
[  333.908228]  ? netlink_diag_dump+0x2a0/0x2a0
[  333.912639]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  333.918171]  ? bpf_test_init.isra.10+0x70/0x100
[  333.922847]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  333.927609]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  333.932449]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  333.938017]  ? fput+0x130/0x1a0
[  333.941303]  ? __bpf_prog_get+0x9b/0x290
[  333.945373]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  333.950226]  ? bpf_prog_test_run+0x130/0x1a0
[  333.954638]  ? __x64_sys_bpf+0x3d8/0x520
[  333.958697]  ? bpf_prog_get+0x20/0x20
[  333.962543]  ? do_syscall_64+0x1b9/0x820
[  333.966600]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  333.971961]  ? syscall_return_slowpath+0x5e0/0x5e0
[  333.976892]  ? trace_hardirqs_on_caller+0x310/0x310
[  333.981960]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  333.986999]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  333.993669]  ? __switch_to_asm+0x40/0x70
[  333.997747]  ? __switch_to_asm+0x34/0x70
[  334.001814]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  334.006658]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  334.012037] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  334.012367] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  334.019048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  334.019057] Call Trace:
[  334.025680] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  334.034919]  <IRQ>
[  334.037484] syz-executor3 cpuset=syz3 mems_allowed=0
[  334.047973]  dump_stack+0x244/0x39d
[  334.058807]  ? dump_stack_print_info.cold.1+0x20/0x20
[  334.064023]  warn_alloc.cold.116+0xb7/0x1bd
[  334.068352]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  334.073202]  ? lock_downgrade+0x900/0x900
[  334.077371]  ? trace_hardirqs_off+0xb8/0x310
[  334.081786]  ? trace_hardirqs_off+0xb8/0x310
[  334.086209]  __alloc_pages_slowpath+0x26e8/0x2e10
[  334.091109]  ? warn_alloc+0x120/0x120
[  334.094952]  ? print_usage_bug+0xc0/0xc0
[  334.099031]  ? warn_alloc+0x120/0x120
[  334.102852]  ? warn_alloc+0x120/0x120
[  334.106654]  ? print_usage_bug+0xc0/0xc0
[  334.110720]  ? kvm_clock_read+0x18/0x30
[  334.114705]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  334.119756]  ? print_usage_bug+0xc0/0xc0
[  334.123825]  ? __lock_acquire+0x62f/0x4c20
[  334.128070]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.133608]  ? should_fail+0x22d/0xd01
[  334.137493]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  334.142779]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  334.147907]  ? __lock_acquire+0x62f/0x4c20
[  334.152148]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  334.157250]  ? __lock_acquire+0x62f/0x4c20
[  334.161512]  ? should_fail+0x22d/0xd01
[  334.165397]  ? rcu_irq_exit+0x1a2/0x390
[  334.169386]  ? mark_held_locks+0x130/0x130
[  334.173630]  ? mark_held_locks+0x130/0x130
[  334.177873]  ? mark_held_locks+0xc7/0x130
[  334.182042]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  334.187060]  ? zap_class+0x640/0x640
[  334.190773]  ? print_usage_bug+0xc0/0xc0
[  334.194840]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.200390]  ? check_preemption_disabled+0x48/0x280
[  334.205441]  ? __lock_is_held+0xb5/0x140
[  334.209511]  __alloc_pages_nodemask+0xa80/0xde0
[  334.214181]  ? zap_class+0x640/0x640
[  334.217907]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  334.222946]  ? find_held_lock+0x36/0x1c0
[  334.227033]  ? ____cache_alloc_node+0x1c7/0x1e0
[  334.231709]  ? lock_downgrade+0x900/0x900
[  334.235867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.241420]  cache_grow_begin+0xa5/0x8c0
[  334.245487]  ? do_raw_spin_unlock+0xa7/0x330
[  334.249911]  fallback_alloc+0x204/0x2e0
[  334.253905]  ____cache_alloc_node+0x1c7/0x1e0
[  334.258408]  kmem_cache_alloc_node+0xe3/0x730
[  334.262927]  ? ipv6_get_ifaddr+0x42e/0x620
[  334.267173]  __alloc_skb+0x119/0x770
[  334.270888]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  334.276176]  ? netdev_alloc_frag+0x1f0/0x1f0
[  334.280587]  ? lock_downgrade+0x900/0x900
[  334.284752]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.290294]  ? refcount_sub_and_test_checked+0x203/0x310
[  334.295773]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  334.301239]  ? addrconf_rs_timer+0x690/0x690
[  334.305666]  ndisc_alloc_skb+0x144/0x340
[  334.309766]  ndisc_send_rs+0x331/0x6e0
[  334.313733]  addrconf_rs_timer+0x314/0x690
[  334.317972]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  334.322217]  call_timer_fn+0x272/0x920
[  334.326111]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  334.330350]  ? process_timeout+0x40/0x40
[  334.334420]  ? mark_held_locks+0xc7/0x130
[  334.338584]  ? _raw_spin_unlock_irq+0x27/0x80
[  334.343078]  ? _raw_spin_unlock_irq+0x27/0x80
[  334.347575]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  334.351835]  ? lockdep_hardirqs_on+0x296/0x5b0
[  334.356421]  ? trace_hardirqs_on+0xbd/0x310
[  334.360746]  ? kasan_check_read+0x11/0x20
[  334.364908]  ? __run_timers+0x7da/0xc70
[  334.368907]  ? trace_hardirqs_off_caller+0x310/0x310
[  334.374014]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  334.378257]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  334.382490]  __run_timers+0x7e5/0xc70
[  334.386312]  ? timer_fixup_init+0x70/0x70
[  334.390461]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  334.395482]  ? zap_class+0x640/0x640
[  334.399212]  ? print_usage_bug+0xc0/0xc0
[  334.403275]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  334.408472]  ? find_held_lock+0x36/0x1c0
[  334.412551]  ? zap_class+0x640/0x640
[  334.416271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.421825]  ? check_preemption_disabled+0x48/0x280
[  334.426850]  ? __lock_is_held+0xb5/0x140
[  334.430934]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.436475]  ? check_preemption_disabled+0x48/0x280
[  334.441501]  run_timer_softirq+0x52/0xb0
[  334.445562]  ? rcu_read_lock_sched_held+0x14f/0x180
[  334.450609]  __do_softirq+0x308/0xb7e
[  334.454430]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  334.458947]  ? lock_downgrade+0x900/0x900
[  334.463098]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  334.468205]  ? pvclock_read_flags+0x160/0x160
[  334.472714]  ? lapic_next_event+0x5a/0x90
[  334.476886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.482467]  ? kvm_clock_read+0x18/0x30
[  334.486434]  ? kvm_sched_clock_read+0x9/0x20
[  334.490857]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.496414]  ? check_preemption_disabled+0x48/0x280
[  334.501434]  irq_exit+0x17f/0x1c0
[  334.504885]  smp_apic_timer_interrupt+0x1cb/0x760
[  334.509762]  ? smp_reschedule_interrupt+0x109/0x650
[  334.514775]  ? smp_call_function_single_interrupt+0x650/0x650
[  334.520656]  ? interrupt_entry+0xb5/0xc0
[  334.524718]  ? trace_hardirqs_off_caller+0xbb/0x310
[  334.529729]  ? trace_hardirqs_off_caller+0xbb/0x310
[  334.534746]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  334.539585]  ? trace_hardirqs_on_caller+0x310/0x310
[  334.544602]  ? trace_hardirqs_on_caller+0x310/0x310
[  334.549629]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  334.554497]  apic_timer_interrupt+0xf/0x20
[  334.558728]  </IRQ>
[  334.560970] RIP: 0010:dump_stack+0x358/0x39d
[  334.565380] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  334.584280] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  334.591984] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  334.599251] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  334.606519] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  334.613788] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  334.621070] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  334.628355]  ? dump_stack+0x34f/0x39d
[  334.632172]  ? dump_stack_print_info.cold.1+0x20/0x20
[  334.637390]  ? mark_held_locks+0x130/0x130
[  334.641629]  ? mark_held_locks+0x130/0x130
[  334.645870]  dump_header+0x27b/0xf72
[  334.649618]  ? pagefault_out_of_memory+0x197/0x197
[  334.654551]  ? __lock_acquire+0x62f/0x4c20
[  334.658803]  ? percpu_ref_get_many+0x240/0x240
[  334.663421]  ? print_usage_bug+0xc0/0xc0
[  334.667488]  ? zap_class+0x640/0x640
[  334.671235]  ? print_usage_bug+0xc0/0xc0
[  334.675303]  ? print_usage_bug+0xc0/0xc0
[  334.679371]  ? zap_class+0x640/0x640
[  334.683090]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.688649]  ? find_held_lock+0x36/0x1c0
[  334.692726]  ? mark_held_locks+0xc7/0x130
[  334.696877]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  334.701984]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  334.707102]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  334.711684]  ? trace_hardirqs_on+0xbd/0x310
[  334.716024]  ? kasan_check_read+0x11/0x20
[  334.720175]  ? ___ratelimit+0x3b4/0x672
[  334.724152]  ? trace_hardirqs_off_caller+0x310/0x310
[  334.729258]  ? trace_hardirqs_on+0x310/0x310
[  334.733668]  ? lock_downgrade+0x900/0x900
[  334.737824]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  334.742930]  ? ___ratelimit+0x3b9/0x672
[  334.746929]  ? idr_get_free+0xf70/0xf70
[  334.750909]  ? find_held_lock+0x36/0x1c0
[  334.754985]  oom_kill_process.cold.27+0x10/0x903
[  334.759742]  ? zap_class+0x640/0x640
[  334.763463]  ? check_preemption_disabled+0x48/0x280
[  334.768496]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  334.773425]  ? kasan_check_read+0x11/0x20
[  334.777572]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  334.782847]  ? oom_evaluate_task+0x540/0x540
[  334.787272]  ? find_held_lock+0x36/0x1c0
[  334.791335]  ? out_of_memory+0x974/0x1430
[  334.795482]  ? lock_downgrade+0x900/0x900
[  334.799626]  ? check_preemption_disabled+0x48/0x280
[  334.804639]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  334.809577]  ? kasan_check_read+0x11/0x20
[  334.813737]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  334.819026]  ? rcu_softirq_qs+0x20/0x20
[  334.823038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.828573]  ? oom_evaluate_task+0x302/0x540
[  334.832983]  out_of_memory+0xa84/0x1430
[  334.836966]  ? oom_killer_disable+0x3a0/0x3a0
[  334.841461]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  334.846410]  ? __ww_mutex_check_waiters+0x160/0x160
[  334.851436]  __alloc_pages_slowpath+0x2354/0x2e10
[  334.856303]  ? warn_alloc+0x120/0x120
[  334.860103]  ? mark_held_locks+0x130/0x130
[  334.864342]  ? find_get_entry+0xaae/0x1120
[  334.868599]  ? filemap_map_pages+0x1a20/0x1a20
[  334.873185]  ? zap_class+0x640/0x640
[  334.877419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.882955]  ? check_preemption_disabled+0x48/0x280
[  334.887972]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.893521]  ? should_fail+0x22d/0xd01
[  334.897424]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  334.902530]  ? zap_class+0x640/0x640
[  334.906280]  ? __lock_is_held+0xb5/0x140
[  334.910521]  ? mark_held_locks+0x130/0x130
[  334.914760]  ? lock_release+0xa00/0xa00
[  334.918733]  ? perf_trace_sched_process_exec+0x860/0x860
[  334.924186]  ? xa_load+0x2ba/0x460
[  334.927726]  ? lock_downgrade+0x900/0x900
[  334.931936]  ? __might_sleep+0x95/0x190
[  334.935936]  __alloc_pages_nodemask+0xa80/0xde0
[  334.940609]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  334.945623]  ? __page_cache_alloc+0x191/0x5c0
[  334.950128]  ? xa_load+0x2e1/0x460
[  334.953669]  ? xa_clear_mark+0x40/0x40
[  334.957574]  ? zap_class+0x640/0x640
[  334.961324]  ? zap_class+0x640/0x640
[  334.965047]  ? zap_class+0x640/0x640
[  334.968768]  ? __do_page_cache_readahead+0x663/0x810
[  334.973869]  ? find_held_lock+0x36/0x1c0
[  334.977957]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  334.983495]  alloc_pages_current+0x173/0x350
[  334.987944]  __page_cache_alloc+0x38c/0x5c0
[  334.992277]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  334.997200]  ? kasan_check_read+0x11/0x20
[  335.001341]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  335.006619]  ? generic_perform_write+0x6a0/0x6a0
[  335.011374]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  335.016951]  ? check_preemption_disabled+0x48/0x280
[  335.021969]  filemap_fault+0x1595/0x25f0
[  335.026036]  ? __lock_page_or_retry+0xa00/0xa00
[  335.030726]  ? mark_held_locks+0x130/0x130
[  335.034978]  ? filemap_map_pages+0xd6b/0x1a20
[  335.039487]  ? lock_downgrade+0x900/0x900
[  335.043632]  ? check_preemption_disabled+0x48/0x280
[  335.048651]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  335.053608]  ? kasan_check_read+0x11/0x20
[  335.057753]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  335.063027]  ? rcu_softirq_qs+0x20/0x20
[  335.067032]  ? filemap_map_pages+0xd92/0x1a20
[  335.071527]  ? print_usage_bug+0xc0/0xc0
[  335.075587]  ? find_get_entries_tag+0x1400/0x1400
[  335.080421]  ? __kasan_slab_free+0x102/0x150
[  335.084822]  ? kasan_slab_free+0xe/0x10
[  335.088789]  ? kmem_cache_free+0x83/0x290
[  335.092938]  ? __sigqueue_free.part.29+0x74/0x90
[  335.097707]  ? lock_acquire+0x1ed/0x520
[  335.101674]  ? ext4_filemap_fault+0x7a/0xad
[  335.106021]  ? lock_release+0xa00/0xa00
[  335.109987]  ? perf_trace_sched_process_exec+0x860/0x860
[  335.115475]  ? print_usage_bug+0xc0/0xc0
[  335.119547]  ? print_usage_bug+0xc0/0xc0
[  335.123613]  ? down_read+0x8d/0x120
[  335.127228]  ? ext4_filemap_fault+0x7a/0xad
[  335.131543]  ? __down_interruptible+0x700/0x700
[  335.136220]  ext4_filemap_fault+0x82/0xad
[  335.140368]  __do_fault+0x100/0x6b0
[  335.143998]  ? pmd_devmap_trans_unstable+0x220/0x220
[  335.149117]  ? mark_held_locks+0x130/0x130
[  335.153371]  ? mark_held_locks+0x130/0x130
[  335.157603]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  335.163137]  ? rcu_pm_notify+0xc0/0xc0
[  335.167030]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  335.172575]  __handle_mm_fault+0x3ea0/0x5be0
[  335.177022]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  335.181865]  ? _raw_spin_unlock_irq+0x27/0x80
[  335.186372]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  335.190957]  ? trace_hardirqs_on+0xbd/0x310
[  335.195290]  ? kasan_check_read+0x11/0x20
[  335.199455]  ? __set_current_blocked+0xdf/0x120
[  335.204120]  ? trace_hardirqs_off_caller+0x310/0x310
[  335.209248]  ? zap_class+0x640/0x640
[  335.212960]  ? zap_class+0x640/0x640
[  335.216677]  ? find_held_lock+0x36/0x1c0
[  335.220753]  ? handle_mm_fault+0x42a/0xc70
[  335.224987]  ? lock_downgrade+0x900/0x900
[  335.229134]  ? check_preemption_disabled+0x48/0x280
[  335.234152]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  335.239082]  ? kasan_check_read+0x11/0x20
[  335.243226]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  335.248517]  ? rcu_softirq_qs+0x20/0x20
[  335.252488]  ? trace_hardirqs_off_caller+0x310/0x310
[  335.257590]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  335.263142]  ? check_preemption_disabled+0x48/0x280
[  335.268167]  handle_mm_fault+0x54f/0xc70
[  335.272241]  ? __handle_mm_fault+0x5be0/0x5be0
[  335.276825]  ? find_vma+0x34/0x190
[  335.280369]  __do_page_fault+0x5e8/0xe60
[  335.284428]  ? exit_to_usermode_loop+0x1f4/0x380
[  335.289194]  do_page_fault+0xf2/0x7e0
[  335.292997]  ? vmalloc_sync_all+0x30/0x30
[  335.297140]  ? error_entry+0x70/0xd0
[  335.300849]  ? trace_hardirqs_off_caller+0xbb/0x310
[  335.305858]  ? trace_hardirqs_on_caller+0xc0/0x310
[  335.310781]  ? syscall_return_slowpath+0x5e0/0x5e0
[  335.315718]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  335.320591]  ? trace_hardirqs_on_caller+0x310/0x310
[  335.325650]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  335.331117]  ? prepare_exit_to_usermode+0x291/0x3b0
[  335.336128]  ? page_fault+0x8/0x30
[  335.339664]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  335.344520]  ? page_fault+0x8/0x30
[  335.348056]  page_fault+0x1e/0x30
[  335.351502] RIP: 0033:0x45db60
[  335.354722] Code: Bad RIP value.
[  335.358108] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  335.363479] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  335.370740] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  335.378006] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  335.385270] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  335.392535] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  335.399837] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  335.399839] Mem-Info:
[  335.399868] active_anon:54051 inactive_anon:192 isolated_anon:0
[  335.399868]  active_file:9 inactive_file:20 isolated_file:0
[  335.399868]  unevictable:0 dirty:0 writeback:0 unstable:0
[  335.399868]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  335.399868]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  335.399868]  free:13735 free_pcp:540 free_cma:0
[  335.407112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  335.407120] Call Trace:
[  335.409570] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  335.442337]  <IRQ>
[  335.451679] 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
[  335.454262]  dump_stack+0x244/0x39d
[  335.481649] lowmem_reserve[]: 0 2818 6321 6321
[  335.483803]  ? dump_stack_print_info.cold.1+0x20/0x20
[  335.509886] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  335.513581]  warn_alloc.cold.116+0xb7/0x1bd
[  335.518124] lowmem_reserve[]: 0 0 3503 3503
[  335.523309]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  335.551049] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  335.555372]  ? lock_downgrade+0x900/0x900
[  335.559661] lowmem_reserve[]: 0 0 0 0
[  335.564494]  ? trace_hardirqs_off+0xb8/0x310
[  335.593528] 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
[  335.597668]  ? trace_hardirqs_off+0xb8/0x310
[  335.601454] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  335.605930]  __alloc_pages_slowpath+0x26e8/0x2e10
[  335.619424] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  335.623843]  ? warn_alloc+0x120/0x120
[  335.639059] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  335.643887]  ? print_usage_bug+0xc0/0xc0
[  335.658016] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  335.661801]  ? warn_alloc+0x120/0x120
[  335.670611] 273 total pagecache pages
[  335.674662]  ? warn_alloc+0x120/0x120
[  335.683218] 0 pages in swap cache
[  335.687017]  ? print_usage_bug+0xc0/0xc0
[  335.690792] Swap cache stats: add 0, delete 0, find 0/0
[  335.694582]  ? kvm_clock_read+0x18/0x30
[  335.698013] Free swap  = 0kB
[  335.702069]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  335.707422] Total swap = 0kB
[  335.711402]  ? print_usage_bug+0xc0/0xc0
[  335.714396] 1965979 pages RAM
[  335.719403]  ? __lock_acquire+0x62f/0x4c20
[  335.722396] 0 pages HighMem/MovableOnly
[  335.726451]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  335.729530] 342853 pages reserved
[  335.733759]  ? should_fail+0x22d/0xd01
[  335.737711] 0 pages cma reserved
[  335.743730]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  335.743747]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  335.747231] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  335.751056]  ? __lock_acquire+0x62f/0x4c20
[  335.754561] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  335.759719]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  335.764811] syz-fuzzer cpuset=/ mems_allowed=0
[  335.771299]  ? __lock_acquire+0x62f/0x4c20
[  335.799633]  ? should_fail+0x22d/0xd01
[  335.803581]  ? rcu_irq_exit+0x1a2/0x390
[  335.807565]  ? mark_held_locks+0x130/0x130
[  335.811805]  ? mark_held_locks+0x130/0x130
[  335.816045]  ? mark_held_locks+0xc7/0x130
[  335.820194]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  335.825220]  ? zap_class+0x640/0x640
[  335.828952]  ? print_usage_bug+0xc0/0xc0
[  335.833021]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.838558]  ? check_preemption_disabled+0x48/0x280
[  335.843587]  ? __lock_is_held+0xb5/0x140
[  335.847669]  __alloc_pages_nodemask+0xa80/0xde0
[  335.852340]  ? zap_class+0x640/0x640
[  335.856058]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  335.861087]  ? find_held_lock+0x36/0x1c0
[  335.865159]  ? ____cache_alloc_node+0x1c7/0x1e0
[  335.869829]  ? lock_downgrade+0x900/0x900
[  335.874244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.879787]  cache_grow_begin+0xa5/0x8c0
[  335.883851]  ? do_raw_spin_unlock+0xa7/0x330
[  335.888269]  fallback_alloc+0x204/0x2e0
[  335.892254]  ____cache_alloc_node+0x1c7/0x1e0
[  335.896755]  kmem_cache_alloc_node+0xe3/0x730
[  335.901256]  ? ipv6_get_ifaddr+0x42e/0x620
[  335.905515]  __alloc_skb+0x119/0x770
[  335.909245]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  335.914527]  ? netdev_alloc_frag+0x1f0/0x1f0
[  335.918939]  ? lock_downgrade+0x900/0x900
[  335.923099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.928679]  ? refcount_sub_and_test_checked+0x203/0x310
[  335.934263]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  335.939711]  ? addrconf_rs_timer+0x690/0x690
[  335.944125]  ndisc_alloc_skb+0x144/0x340
[  335.948189]  ndisc_send_rs+0x331/0x6e0
[  335.952099]  addrconf_rs_timer+0x314/0x690
[  335.956335]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  335.960588]  call_timer_fn+0x272/0x920
[  335.964501]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  335.968745]  ? process_timeout+0x40/0x40
[  335.972805]  ? __run_timers+0x7da/0xc70
[  335.976784]  ? _raw_spin_unlock_irq+0x27/0x80
[  335.981272]  ? _raw_spin_unlock_irq+0x27/0x80
[  335.985761]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  335.989987]  ? lockdep_hardirqs_on+0x296/0x5b0
[  335.994580]  ? trace_hardirqs_on+0xbd/0x310
[  335.998899]  ? kasan_check_read+0x11/0x20
[  336.003061]  ? __run_timers+0x7da/0xc70
[  336.007031]  ? trace_hardirqs_off_caller+0x310/0x310
[  336.012131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  336.016370]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  336.020599]  __run_timers+0x7e5/0xc70
[  336.024403]  ? timer_fixup_init+0x70/0x70
[  336.028553]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  336.033570]  ? zap_class+0x640/0x640
[  336.037289]  ? enqueue_hrtimer+0x1a5/0x560
[  336.041523]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  336.046715]  ? find_held_lock+0x36/0x1c0
[  336.050777]  ? zap_class+0x640/0x640
[  336.054492]  ? pvclock_read_flags+0x160/0x160
[  336.058985]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.064524]  ? check_preemption_disabled+0x48/0x280
[  336.069576]  ? __lock_is_held+0xb5/0x140
[  336.073635]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.079171]  ? check_preemption_disabled+0x48/0x280
[  336.084191]  run_timer_softirq+0x52/0xb0
[  336.088281]  ? rcu_read_lock_sched_held+0x14f/0x180
[  336.093313]  __do_softirq+0x308/0xb7e
[  336.097129]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  336.101621]  ? lock_downgrade+0x900/0x900
[  336.105782]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  336.110886]  ? pvclock_read_flags+0x160/0x160
[  336.115389]  ? lapic_next_event+0x5a/0x90
[  336.119582]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.125122]  ? kvm_clock_read+0x18/0x30
[  336.129094]  ? kvm_sched_clock_read+0x9/0x20
[  336.133502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.139035]  ? check_preemption_disabled+0x48/0x280
[  336.144061]  irq_exit+0x17f/0x1c0
[  336.147527]  smp_apic_timer_interrupt+0x1cb/0x760
[  336.152388]  ? smp_reschedule_interrupt+0x109/0x650
[  336.157438]  ? smp_call_function_single_interrupt+0x650/0x650
[  336.163317]  ? interrupt_entry+0xb5/0xc0
[  336.167378]  ? trace_hardirqs_off_caller+0xbb/0x310
[  336.172391]  ? trace_hardirqs_off_caller+0xbb/0x310
[  336.177408]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  336.182251]  ? trace_hardirqs_on_caller+0x310/0x310
[  336.187267]  ? trace_hardirqs_on_caller+0x310/0x310
[  336.192283]  ? task_prio+0x50/0x50
[  336.195825]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.201368]  ? check_preemption_disabled+0x48/0x280
[  336.206402]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  336.211251]  apic_timer_interrupt+0xf/0x20
[  336.215478]  </IRQ>
[  336.217722] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  336.222676] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  336.241578] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  336.249283] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  336.256552] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  336.263818] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  336.271082] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  336.278346] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  336.285660]  skb_clone+0x1bb/0x500
[  336.289205]  ? finish_task_switch+0x2f4/0x910
[  336.293715]  ? skb_split+0x11e0/0x11e0
[  336.297603]  ? preempt_notifier_register+0x200/0x200
[  336.302706]  ? __switch_to_asm+0x34/0x70
[  336.306763]  ? __switch_to_asm+0x34/0x70
[  336.310820]  ? __switch_to_asm+0x40/0x70
[  336.314888]  ? __switch_to_asm+0x34/0x70
[  336.318959]  ? __switch_to_asm+0x40/0x70
[  336.323015]  ? __switch_to_asm+0x34/0x70
[  336.327068]  ? __switch_to_asm+0x40/0x70
[  336.331153]  ? __switch_to_asm+0x34/0x70
[  336.335225]  ? __switch_to_asm+0x34/0x70
[  336.339284]  ? __switch_to_asm+0x40/0x70
[  336.343358]  ? __switch_to_asm+0x34/0x70
[  336.347441]  bpf_clone_redirect+0xb9/0x490
[  336.351700]  ? __schedule+0x8d7/0x21d0
[  336.355594]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  336.360607]  ? __sched_text_start+0x8/0x8
[  336.364751]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  336.369529]  ? find_held_lock+0x36/0x1c0
[  336.373611]  ? lock_acquire+0x1ed/0x520
[  336.377609]  ? bpf_test_run+0x3cb/0x780
[  336.381581]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.387123]  ? check_preemption_disabled+0x48/0x280
[  336.392139]  ? kasan_check_read+0x11/0x20
[  336.396298]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  336.401572]  ? rcu_softirq_qs+0x20/0x20
[  336.405554]  ? preempt_schedule+0x4d/0x60
[  336.409697]  ? ___preempt_schedule+0x16/0x18
[  336.414114]  ? bpf_test_run+0x25d/0x780
[  336.418123]  ? netlink_diag_dump+0x2a0/0x2a0
[  336.422533]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.428091]  ? bpf_test_init.isra.10+0x70/0x100
[  336.432791]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  336.437552]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  336.442387]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  336.447924]  ? fput+0x130/0x1a0
[  336.451232]  ? __bpf_prog_get+0x9b/0x290
[  336.455339]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  336.460174]  ? bpf_prog_test_run+0x130/0x1a0
[  336.464585]  ? __x64_sys_bpf+0x3d8/0x520
[  336.468639]  ? bpf_prog_get+0x20/0x20
[  336.472446]  ? do_syscall_64+0x1b9/0x820
[  336.476523]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  336.481896]  ? syscall_return_slowpath+0x5e0/0x5e0
[  336.486830]  ? trace_hardirqs_on_caller+0x310/0x310
[  336.491854]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  336.496867]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  336.503538]  ? __switch_to_asm+0x40/0x70
[  336.507604]  ? __switch_to_asm+0x34/0x70
[  336.511688]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  336.516535]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  336.521917] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  336.521982] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  336.528928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  336.528932] Call Trace:
[  336.528938]  <IRQ>
[  336.528954]  dump_stack+0x244/0x39d
[  336.528970]  ? dump_stack_print_info.cold.1+0x20/0x20
[  336.535574] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  336.544804]  warn_alloc.cold.116+0xb7/0x1bd
[  336.547356] syz-executor3 cpuset=syz3 mems_allowed=0
[  336.549493]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  336.583127]  ? lock_downgrade+0x900/0x900
[  336.587292]  ? trace_hardirqs_off+0xb8/0x310
[  336.591706]  ? trace_hardirqs_off+0xb8/0x310
[  336.596122]  __alloc_pages_slowpath+0x26e8/0x2e10
[  336.601005]  ? warn_alloc+0x120/0x120
[  336.604823]  ? print_usage_bug+0xc0/0xc0
[  336.608887]  ? warn_alloc+0x120/0x120
[  336.612702]  ? warn_alloc+0x120/0x120
[  336.616506]  ? print_usage_bug+0xc0/0xc0
[  336.620572]  ? kvm_clock_read+0x18/0x30
[  336.624563]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  336.629579]  ? print_usage_bug+0xc0/0xc0
[  336.633644]  ? __lock_acquire+0x62f/0x4c20
[  336.637886]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.643430]  ? should_fail+0x22d/0xd01
[  336.647322]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  336.652428]  ? __lock_acquire+0x62f/0x4c20
[  336.656669]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  336.661778]  ? __lock_acquire+0x62f/0x4c20
[  336.666014]  ? should_fail+0x22d/0xd01
[  336.669919]  ? mark_held_locks+0x130/0x130
[  336.674159]  ? mark_held_locks+0x130/0x130
[  336.678400]  ? zap_class+0x640/0x640
[  336.682145]  ? print_usage_bug+0xc0/0xc0
[  336.686207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.691797]  ? check_preemption_disabled+0x48/0x280
[  336.696842]  ? __lock_is_held+0xb5/0x140
[  336.700918]  __alloc_pages_nodemask+0xa80/0xde0
[  336.705591]  ? zap_class+0x640/0x640
[  336.709323]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  336.714347]  ? find_held_lock+0x36/0x1c0
[  336.718416]  ? ____cache_alloc_node+0x1c7/0x1e0
[  336.723085]  ? lock_downgrade+0x900/0x900
[  336.727236]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.732775]  cache_grow_begin+0xa5/0x8c0
[  336.736845]  ? do_raw_spin_unlock+0xa7/0x330
[  336.741292]  fallback_alloc+0x204/0x2e0
[  336.745277]  ____cache_alloc_node+0x1c7/0x1e0
[  336.749791]  kmem_cache_alloc_node+0xe3/0x730
[  336.754304]  ? ipv6_get_ifaddr+0x42e/0x620
[  336.758552]  __alloc_skb+0x119/0x770
[  336.762264]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  336.767573]  ? netdev_alloc_frag+0x1f0/0x1f0
[  336.771977]  ? lock_downgrade+0x900/0x900
[  336.776150]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.781717]  ? refcount_sub_and_test_checked+0x203/0x310
[  336.787177]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  336.792623]  ? addrconf_rs_timer+0x690/0x690
[  336.797042]  ndisc_alloc_skb+0x144/0x340
[  336.801103]  ndisc_send_rs+0x331/0x6e0
[  336.805004]  addrconf_rs_timer+0x314/0x690
[  336.809239]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  336.813493]  call_timer_fn+0x272/0x920
[  336.817392]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  336.821622]  ? process_timeout+0x40/0x40
[  336.825709]  ? mark_held_locks+0xc7/0x130
[  336.829861]  ? _raw_spin_unlock_irq+0x27/0x80
[  336.834366]  ? _raw_spin_unlock_irq+0x27/0x80
[  336.838857]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  336.843087]  ? lockdep_hardirqs_on+0x296/0x5b0
[  336.847673]  ? trace_hardirqs_on+0xbd/0x310
[  336.852003]  ? kasan_check_read+0x11/0x20
[  336.856146]  ? __run_timers+0x7da/0xc70
[  336.860121]  ? trace_hardirqs_off_caller+0x310/0x310
[  336.865232]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  336.869481]  __run_timers+0x7e5/0xc70
[  336.873747]  ? timer_fixup_init+0x70/0x70
[  336.877955]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  336.882969]  ? zap_class+0x640/0x640
[  336.886704]  ? print_usage_bug+0xc0/0xc0
[  336.890764]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  336.895957]  ? find_held_lock+0x36/0x1c0
[  336.900024]  ? zap_class+0x640/0x640
[  336.903742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.909279]  ? check_preemption_disabled+0x48/0x280
[  336.914304]  ? __lock_is_held+0xb5/0x140
[  336.918375]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.923917]  ? check_preemption_disabled+0x48/0x280
[  336.928937]  run_timer_softirq+0x52/0xb0
[  336.932997]  ? rcu_read_lock_sched_held+0x14f/0x180
[  336.938015]  __do_softirq+0x308/0xb7e
[  336.941815]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  336.946310]  ? lock_downgrade+0x900/0x900
[  336.950462]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  336.955577]  ? pvclock_read_flags+0x160/0x160
[  336.960089]  ? lapic_next_event+0x5a/0x90
[  336.964233]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.969786]  ? kvm_clock_read+0x18/0x30
[  336.973756]  ? kvm_sched_clock_read+0x9/0x20
[  336.978183]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.983718]  ? check_preemption_disabled+0x48/0x280
[  336.988735]  irq_exit+0x17f/0x1c0
[  336.992216]  smp_apic_timer_interrupt+0x1cb/0x760
[  336.997052]  ? smp_reschedule_interrupt+0x109/0x650
[  337.002065]  ? smp_call_function_single_interrupt+0x650/0x650
[  337.007945]  ? interrupt_entry+0xb5/0xc0
[  337.012004]  ? trace_hardirqs_off_caller+0xbb/0x310
[  337.017014]  ? trace_hardirqs_off_caller+0xbb/0x310
[  337.022024]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  337.026861]  ? trace_hardirqs_on_caller+0x310/0x310
[  337.031872]  ? trace_hardirqs_on_caller+0x310/0x310
[  337.036908]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  337.041754]  apic_timer_interrupt+0xf/0x20
[  337.045977]  </IRQ>
[  337.048233] RIP: 0010:dump_stack+0x358/0x39d
[  337.052641] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  337.071536] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  337.079246] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  337.086511] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  337.093792] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  337.101059] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  337.108326] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  337.115627]  ? dump_stack+0x34f/0x39d
[  337.119460]  ? dump_stack_print_info.cold.1+0x20/0x20
[  337.124661]  ? mark_held_locks+0x130/0x130
[  337.128897]  ? mark_held_locks+0x130/0x130
[  337.133144]  dump_header+0x27b/0xf72
[  337.136872]  ? pagefault_out_of_memory+0x197/0x197
[  337.141813]  ? __lock_acquire+0x62f/0x4c20
[  337.146051]  ? percpu_ref_get_many+0x240/0x240
[  337.150634]  ? print_usage_bug+0xc0/0xc0
[  337.154704]  ? zap_class+0x640/0x640
[  337.158420]  ? print_usage_bug+0xc0/0xc0
[  337.162483]  ? print_usage_bug+0xc0/0xc0
[  337.166577]  ? zap_class+0x640/0x640
[  337.170293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.175836]  ? find_held_lock+0x36/0x1c0
[  337.179928]  ? mark_held_locks+0xc7/0x130
[  337.184109]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  337.189211]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  337.194315]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  337.198899]  ? trace_hardirqs_on+0xbd/0x310
[  337.203242]  ? kasan_check_read+0x11/0x20
[  337.207393]  ? ___ratelimit+0x3b4/0x672
[  337.211422]  ? trace_hardirqs_off_caller+0x310/0x310
[  337.216540]  ? trace_hardirqs_on+0x310/0x310
[  337.220977]  ? lock_downgrade+0x900/0x900
[  337.225126]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  337.230229]  ? ___ratelimit+0x3b9/0x672
[  337.234207]  ? idr_get_free+0xf70/0xf70
[  337.238181]  ? find_held_lock+0x36/0x1c0
[  337.242254]  oom_kill_process.cold.27+0x10/0x903
[  337.247014]  ? zap_class+0x640/0x640
[  337.250773]  ? check_preemption_disabled+0x48/0x280
[  337.255793]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  337.260726]  ? kasan_check_read+0x11/0x20
[  337.264874]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  337.270163]  ? oom_evaluate_task+0x540/0x540
[  337.274578]  ? find_held_lock+0x36/0x1c0
[  337.278661]  ? out_of_memory+0x974/0x1430
[  337.282808]  ? lock_downgrade+0x900/0x900
[  337.286954]  ? check_preemption_disabled+0x48/0x280
[  337.291971]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  337.296915]  ? kasan_check_read+0x11/0x20
[  337.301064]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  337.306365]  ? rcu_softirq_qs+0x20/0x20
[  337.310396]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  337.315950]  ? oom_evaluate_task+0x302/0x540
[  337.320396]  out_of_memory+0xa84/0x1430
[  337.324393]  ? oom_killer_disable+0x3a0/0x3a0
[  337.328900]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  337.333863]  ? __ww_mutex_check_waiters+0x160/0x160
[  337.338889]  __alloc_pages_slowpath+0x2354/0x2e10
[  337.343787]  ? warn_alloc+0x120/0x120
[  337.347599]  ? mark_held_locks+0x130/0x130
[  337.351833]  ? find_get_entry+0xaae/0x1120
[  337.356078]  ? filemap_map_pages+0x1a20/0x1a20
[  337.360664]  ? zap_class+0x640/0x640
[  337.364423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.369979]  ? check_preemption_disabled+0x48/0x280
[  337.374988]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  337.380521]  ? should_fail+0x22d/0xd01
[  337.384410]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  337.389511]  ? zap_class+0x640/0x640
[  337.393242]  ? __lock_is_held+0xb5/0x140
[  337.397309]  ? mark_held_locks+0x130/0x130
[  337.401541]  ? lock_release+0xa00/0xa00
[  337.405525]  ? perf_trace_sched_process_exec+0x860/0x860
[  337.410969]  ? xa_load+0x2ba/0x460
[  337.414502]  ? lock_downgrade+0x900/0x900
[  337.418647]  ? __might_sleep+0x95/0x190
[  337.422618]  __alloc_pages_nodemask+0xa80/0xde0
[  337.427289]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  337.432323]  ? __page_cache_alloc+0x191/0x5c0
[  337.436844]  ? xa_load+0x2e1/0x460
[  337.440382]  ? xa_clear_mark+0x40/0x40
[  337.444267]  ? zap_class+0x640/0x640
[  337.447997]  ? zap_class+0x640/0x640
[  337.451719]  ? zap_class+0x640/0x640
[  337.455446]  ? __do_page_cache_readahead+0x663/0x810
[  337.460549]  ? find_held_lock+0x36/0x1c0
[  337.464614]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  337.470164]  alloc_pages_current+0x173/0x350
[  337.474589]  __page_cache_alloc+0x38c/0x5c0
[  337.478918]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  337.483846]  ? kasan_check_read+0x11/0x20
[  337.487991]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  337.493276]  ? generic_perform_write+0x6a0/0x6a0
[  337.498032]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  337.503565]  ? check_preemption_disabled+0x48/0x280
[  337.508613]  filemap_fault+0x1595/0x25f0
[  337.512682]  ? __lock_page_or_retry+0xa00/0xa00
[  337.517353]  ? mark_held_locks+0x130/0x130
[  337.521612]  ? filemap_map_pages+0xd6b/0x1a20
[  337.526103]  ? lock_downgrade+0x900/0x900
[  337.530248]  ? check_preemption_disabled+0x48/0x280
[  337.535265]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  337.540190]  ? kasan_check_read+0x11/0x20
[  337.544337]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  337.549609]  ? rcu_softirq_qs+0x20/0x20
[  337.553605]  ? filemap_map_pages+0xd92/0x1a20
[  337.558097]  ? print_usage_bug+0xc0/0xc0
[  337.562159]  ? find_get_entries_tag+0x1400/0x1400
[  337.567016]  ? __kasan_slab_free+0x102/0x150
[  337.571432]  ? kasan_slab_free+0xe/0x10
[  337.575404]  ? kmem_cache_free+0x83/0x290
[  337.579546]  ? __sigqueue_free.part.29+0x74/0x90
[  337.584314]  ? lock_acquire+0x1ed/0x520
[  337.588282]  ? ext4_filemap_fault+0x7a/0xad
[  337.592619]  ? lock_release+0xa00/0xa00
[  337.596593]  ? perf_trace_sched_process_exec+0x860/0x860
[  337.602057]  ? print_usage_bug+0xc0/0xc0
[  337.606121]  ? print_usage_bug+0xc0/0xc0
[  337.610192]  ? down_read+0x8d/0x120
[  337.613816]  ? ext4_filemap_fault+0x7a/0xad
[  337.618140]  ? __down_interruptible+0x700/0x700
[  337.622815]  ext4_filemap_fault+0x82/0xad
[  337.626965]  __do_fault+0x100/0x6b0
[  337.630598]  ? pmd_devmap_trans_unstable+0x220/0x220
[  337.635715]  ? mark_held_locks+0x130/0x130
[  337.639949]  ? mark_held_locks+0x130/0x130
[  337.644181]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  337.649728]  ? rcu_pm_notify+0xc0/0xc0
[  337.653625]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  337.659165]  __handle_mm_fault+0x3ea0/0x5be0
[  337.663581]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  337.668437]  ? _raw_spin_unlock_irq+0x27/0x80
[  337.672940]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  337.677540]  ? trace_hardirqs_on+0xbd/0x310
[  337.681873]  ? kasan_check_read+0x11/0x20
[  337.686054]  ? __set_current_blocked+0xdf/0x120
[  337.690728]  ? trace_hardirqs_off_caller+0x310/0x310
[  337.695854]  ? zap_class+0x640/0x640
[  337.699569]  ? zap_class+0x640/0x640
[  337.703286]  ? find_held_lock+0x36/0x1c0
[  337.707383]  ? handle_mm_fault+0x42a/0xc70
[  337.711633]  ? lock_downgrade+0x900/0x900
[  337.715785]  ? check_preemption_disabled+0x48/0x280
[  337.720815]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  337.725771]  ? kasan_check_read+0x11/0x20
[  337.729923]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  337.735225]  ? rcu_softirq_qs+0x20/0x20
[  337.739198]  ? trace_hardirqs_off_caller+0x310/0x310
[  337.744464]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  337.750002]  ? check_preemption_disabled+0x48/0x280
[  337.755025]  handle_mm_fault+0x54f/0xc70
[  337.759096]  ? __handle_mm_fault+0x5be0/0x5be0
[  337.763680]  ? find_vma+0x34/0x190
[  337.767236]  __do_page_fault+0x5e8/0xe60
[  337.771329]  ? exit_to_usermode_loop+0x1f4/0x380
[  337.776103]  do_page_fault+0xf2/0x7e0
[  337.779911]  ? vmalloc_sync_all+0x30/0x30
[  337.784076]  ? error_entry+0x70/0xd0
[  337.787788]  ? trace_hardirqs_off_caller+0xbb/0x310
[  337.792801]  ? trace_hardirqs_on_caller+0xc0/0x310
[  337.797770]  ? syscall_return_slowpath+0x5e0/0x5e0
[  337.802696]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  337.807555]  ? trace_hardirqs_on_caller+0x310/0x310
[  337.812583]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  337.818038]  ? prepare_exit_to_usermode+0x291/0x3b0
[  337.823051]  ? page_fault+0x8/0x30
[  337.826593]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  337.831453]  ? page_fault+0x8/0x30
[  337.835007]  page_fault+0x1e/0x30
[  337.838454] RIP: 0033:0x45db60
[  337.841658] Code: Bad RIP value.
[  337.845035] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  337.850395] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  337.857657] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  337.864925] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  337.872189] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  337.879937] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  337.887245] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  337.887250] warn_alloc_show_mem: 1 callbacks suppressed
[  337.887257] Mem-Info:
[  337.894529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  337.899899] active_anon:54051 inactive_anon:192 isolated_anon:0
[  337.899899]  active_file:9 inactive_file:20 isolated_file:0
[  337.899899]  unevictable:0 dirty:0 writeback:0 unstable:0
[  337.899899]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  337.899899]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  337.899899]  free:13735 free_pcp:540 free_cma:0
[  337.902284] Call Trace:
[  337.911674] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  337.944427]  <IRQ>
[  337.946991] 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
[  337.974395]  dump_stack+0x244/0x39d
[  337.976512] lowmem_reserve[]: 0 2818 6321 6321
[  338.002640]  ? dump_stack_print_info.cold.1+0x20/0x20
[  338.006235] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  338.010810]  warn_alloc.cold.116+0xb7/0x1bd
[  338.015977] lowmem_reserve[]: 0 0 3503 3503
[  338.043739]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  338.048030] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  338.052356]  ? lock_downgrade+0x900/0x900
[  338.057181] lowmem_reserve[]: 0 0 0 0
[  338.086237]  ? trace_hardirqs_off+0xb8/0x310
[  338.090370] 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
[  338.094165]  ? trace_hardirqs_off+0xb8/0x310
[  338.098544] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  338.112089]  __alloc_pages_slowpath+0x26e8/0x2e10
[  338.116469] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  338.131772]  ? warn_alloc+0x120/0x120
[  338.136571] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  338.150687]  ? print_usage_bug+0xc0/0xc0
[  338.154469] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  338.163303]  ? warn_alloc+0x120/0x120
[  338.167342] 273 total pagecache pages
[  338.175915]  ? warn_alloc+0x120/0x120
[  338.179695] 0 pages in swap cache
[  338.183479]  ? print_usage_bug+0xc0/0xc0
[  338.187271] Swap cache stats: add 0, delete 0, find 0/0
[  338.190718]  ? kvm_clock_read+0x18/0x30
[  338.194761] Free swap  = 0kB
[  338.200149]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  338.204096] Total swap = 0kB
[  338.207109]  ? print_usage_bug+0xc0/0xc0
[  338.212102] 1965979 pages RAM
[  338.215117]  ? __lock_acquire+0x62f/0x4c20
[  338.219153] 0 pages HighMem/MovableOnly
[  338.222250]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.226457] 342853 pages reserved
[  338.230420]  ? should_fail+0x22d/0xd01
[  338.235948] 0 pages cma reserved
[  338.239392]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  338.243344] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  338.246617]  ? __lock_acquire+0x62f/0x4c20
[  338.251761] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  338.258187]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  338.262407] syz-fuzzer cpuset=/ mems_allowed=0
[  338.272640]  ? __lock_acquire+0x62f/0x4c20
[  338.286521]  ? should_fail+0x22d/0xd01
[  338.290418]  ? mark_held_locks+0x130/0x130
[  338.294657]  ? mark_held_locks+0x130/0x130
[  338.298887]  ? try_to_wake_up+0x11c/0x1490
[  338.303129]  ? lock_downgrade+0x900/0x900
[  338.307280]  ? zap_class+0x640/0x640
[  338.310993]  ? print_usage_bug+0xc0/0xc0
[  338.315051]  ? trace_hardirqs_off+0xb8/0x310
[  338.319456]  ? kasan_check_read+0x11/0x20
[  338.323613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.329162]  ? check_preemption_disabled+0x48/0x280
[  338.334197]  ? __lock_is_held+0xb5/0x140
[  338.338291]  __alloc_pages_nodemask+0xa80/0xde0
[  338.342952]  ? zap_class+0x640/0x640
[  338.346664]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  338.351685]  ? find_held_lock+0x36/0x1c0
[  338.355765]  ? ____cache_alloc_node+0x1c7/0x1e0
[  338.360444]  ? lock_downgrade+0x900/0x900
[  338.364605]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.370139]  cache_grow_begin+0xa5/0x8c0
[  338.374218]  ? do_raw_spin_unlock+0xa7/0x330
[  338.378660]  fallback_alloc+0x204/0x2e0
[  338.382637]  ____cache_alloc_node+0x1c7/0x1e0
[  338.387133]  kmem_cache_alloc_node+0xe3/0x730
[  338.391622]  ? ipv6_get_ifaddr+0x42e/0x620
[  338.395858]  __alloc_skb+0x119/0x770
[  338.399564]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.404838]  ? netdev_alloc_frag+0x1f0/0x1f0
[  338.409240]  ? lock_downgrade+0x900/0x900
[  338.413391]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.418939]  ? refcount_sub_and_test_checked+0x203/0x310
[  338.424388]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  338.429845]  ? addrconf_rs_timer+0x690/0x690
[  338.434262]  ndisc_alloc_skb+0x144/0x340
[  338.438321]  ndisc_send_rs+0x331/0x6e0
[  338.442235]  addrconf_rs_timer+0x314/0x690
[  338.446467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.450709]  call_timer_fn+0x272/0x920
[  338.454595]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.458824]  ? process_timeout+0x40/0x40
[  338.462886]  ? __run_timers+0x7da/0xc70
[  338.466860]  ? _raw_spin_unlock_irq+0x27/0x80
[  338.471346]  ? _raw_spin_unlock_irq+0x27/0x80
[  338.475835]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.480064]  ? lockdep_hardirqs_on+0x296/0x5b0
[  338.484658]  ? trace_hardirqs_on+0xbd/0x310
[  338.488987]  ? kasan_check_read+0x11/0x20
[  338.493140]  ? __run_timers+0x7da/0xc70
[  338.497110]  ? trace_hardirqs_off_caller+0x310/0x310
[  338.502216]  ? __queue_work+0x1440/0x1440
[  338.506368]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.510602]  __run_timers+0x7e5/0xc70
[  338.514424]  ? timer_fixup_init+0x70/0x70
[  338.518604]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  338.523619]  ? zap_class+0x640/0x640
[  338.527345]  ? enqueue_hrtimer+0x1a5/0x560
[  338.531606]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  338.536822]  ? find_held_lock+0x36/0x1c0
[  338.540883]  ? zap_class+0x640/0x640
[  338.544598]  ? pvclock_read_flags+0x160/0x160
[  338.549091]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.554624]  ? check_preemption_disabled+0x48/0x280
[  338.559641]  ? __lock_is_held+0xb5/0x140
[  338.563699]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.569233]  ? check_preemption_disabled+0x48/0x280
[  338.574265]  run_timer_softirq+0x52/0xb0
[  338.578326]  ? rcu_read_lock_sched_held+0x14f/0x180
[  338.583338]  __do_softirq+0x308/0xb7e
[  338.587138]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  338.591643]  ? lock_downgrade+0x900/0x900
[  338.595791]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  338.600893]  ? pvclock_read_flags+0x160/0x160
[  338.605406]  ? lapic_next_event+0x5a/0x90
[  338.609582]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.615121]  ? kvm_clock_read+0x18/0x30
[  338.619091]  ? kvm_sched_clock_read+0x9/0x20
[  338.623554]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.629104]  ? check_preemption_disabled+0x48/0x280
[  338.634126]  irq_exit+0x17f/0x1c0
[  338.637577]  smp_apic_timer_interrupt+0x1cb/0x760
[  338.642448]  ? smp_reschedule_interrupt+0x109/0x650
[  338.647477]  ? smp_call_function_single_interrupt+0x650/0x650
[  338.653362]  ? interrupt_entry+0xb5/0xc0
[  338.657426]  ? trace_hardirqs_off_caller+0xbb/0x310
[  338.662439]  ? trace_hardirqs_off_caller+0xbb/0x310
[  338.667456]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  338.672306]  ? trace_hardirqs_on_caller+0x310/0x310
[  338.677325]  ? trace_hardirqs_on_caller+0x310/0x310
[  338.682339]  ? task_prio+0x50/0x50
[  338.685883]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.691431]  ? check_preemption_disabled+0x48/0x280
[  338.696451]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  338.701299]  apic_timer_interrupt+0xf/0x20
[  338.705523]  </IRQ>
[  338.707758] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  338.712685] Code: 7e 0f 85 cf fe ff ff e8 36 fd 3d ff e9 c5 fe ff ff e8 9d 32 c3 ff 48 83 3d b5 7b 8f 07 00 0f 84 41 03 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 e9 54 fe ff ff 31 d2 be a5 01 00 00 48 c7 c7 92 b6
[  338.731581] RSP: 0000:ffff8801960e7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  338.739300] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  338.746580] RDX: 0000000000000000 RSI: ffff8801bab60e40 RDI: 0000000000000286
[  338.753883] RBP: ffff8801960e77a0 R08: ffff8801bab605c0 R09: 0000000000000000
[  338.761153] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  338.768429] R13: ffff8801d9bee600 R14: ffff8801d9bee600 R15: 0000000000480020
[  338.775725]  skb_clone+0x1bb/0x500
[  338.779276]  ? finish_task_switch+0x2f4/0x910
[  338.783772]  ? skb_split+0x11e0/0x11e0
[  338.787676]  ? preempt_notifier_register+0x200/0x200
[  338.792770]  ? __switch_to_asm+0x34/0x70
[  338.796842]  ? __switch_to_asm+0x34/0x70
[  338.800897]  ? __switch_to_asm+0x40/0x70
[  338.804973]  ? __switch_to_asm+0x34/0x70
[  338.809026]  ? __switch_to_asm+0x40/0x70
[  338.813077]  ? __switch_to_asm+0x34/0x70
[  338.817159]  ? __switch_to_asm+0x40/0x70
[  338.821219]  ? __switch_to_asm+0x34/0x70
[  338.825311]  ? __switch_to_asm+0x34/0x70
[  338.829370]  ? __switch_to_asm+0x40/0x70
[  338.833431]  ? __switch_to_asm+0x34/0x70
[  338.837512]  bpf_clone_redirect+0xb9/0x490
[  338.841750]  ? __schedule+0x8d7/0x21d0
[  338.845658]  bpf_prog_bebbfe2050753572+0x883/0x1000
[  338.850700]  ? __sched_text_start+0x8/0x8
[  338.854851]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  338.859617]  ? find_held_lock+0x36/0x1c0
[  338.863684]  ? lock_acquire+0x1ed/0x520
[  338.867663]  ? bpf_test_run+0x3cb/0x780
[  338.871637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.877193]  ? check_preemption_disabled+0x48/0x280
[  338.882225]  ? kasan_check_read+0x11/0x20
[  338.886377]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.891665]  ? rcu_softirq_qs+0x20/0x20
[  338.895643]  ? preempt_schedule+0x4d/0x60
[  338.899814]  ? ___preempt_schedule+0x16/0x18
[  338.904242]  ? bpf_test_run+0x25d/0x780
[  338.908276]  ? netlink_diag_dump+0x2a0/0x2a0
[  338.912696]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.918235]  ? bpf_test_init.isra.10+0x70/0x100
[  338.922933]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  338.927698]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  338.932543]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  338.938077]  ? fput+0x130/0x1a0
[  338.941355]  ? __bpf_prog_get+0x9b/0x290
[  338.945414]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  338.950249]  ? bpf_prog_test_run+0x130/0x1a0
[  338.954656]  ? __x64_sys_bpf+0x3d8/0x520
[  338.958710]  ? bpf_prog_get+0x20/0x20
[  338.962536]  ? do_syscall_64+0x1b9/0x820
[  338.966603]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  338.971969]  ? syscall_return_slowpath+0x5e0/0x5e0
[  338.976895]  ? trace_hardirqs_on_caller+0x310/0x310
[  338.981922]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  338.986942]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  338.993600]  ? __switch_to_asm+0x40/0x70
[  338.997663]  ? __switch_to_asm+0x34/0x70
[  339.001728]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  339.006573]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  339.011951] CPU: 1 PID: 5997 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #142
[  339.012017] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  339.018956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  339.018960] Call Trace:
[  339.018966]  <IRQ>
[  339.018982]  dump_stack+0x244/0x39d
[  339.018999]  ? dump_stack_print_info.cold.1+0x20/0x20
[  339.025579] syz-executor3: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  339.034853]  warn_alloc.cold.116+0xb7/0x1bd
[  339.037407] syz-executor3 cpuset=syz3 mems_allowed=0
[  339.039569]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  339.073065]  ? lock_downgrade+0x900/0x900
[  339.077213]  ? trace_hardirqs_off+0xb8/0x310
[  339.081618]  ? trace_hardirqs_off+0xb8/0x310
[  339.086031]  __alloc_pages_slowpath+0x26e8/0x2e10
[  339.090917]  ? warn_alloc+0x120/0x120
[  339.094722]  ? print_usage_bug+0xc0/0xc0
[  339.098778]  ? warn_alloc+0x120/0x120
[  339.102607]  ? warn_alloc+0x120/0x120
[  339.106403]  ? print_usage_bug+0xc0/0xc0
[  339.110462]  ? print_usage_bug+0xc0/0xc0
[  339.114542]  ? __lock_acquire+0x62f/0x4c20
[  339.118776]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.124325]  ? should_fail+0x22d/0xd01
[  339.128230]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  339.133325]  ? __lock_acquire+0x62f/0x4c20
[  339.137576]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  339.142706]  ? __lock_acquire+0x62f/0x4c20
[  339.146954]  ? should_fail+0x22d/0xd01
[  339.150838]  ? find_held_lock+0x36/0x1c0
[  339.154939]  ? mark_held_locks+0x130/0x130
[  339.159178]  ? mark_held_locks+0x130/0x130
[  339.163421]  ? zap_class+0x640/0x640
[  339.167157]  ? zap_class+0x640/0x640
[  339.170864]  ? print_usage_bug+0xc0/0xc0
[  339.174924]  ? do_raw_spin_unlock+0xa7/0x330
[  339.179342]  ? zap_class+0x640/0x640
[  339.183050]  ? print_usage_bug+0xc0/0xc0
[  339.187106]  ? wq_watchdog_touch+0x9c/0xfe
[  339.191338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.196911]  ? check_preemption_disabled+0x48/0x280
[  339.201964]  ? __lock_is_held+0xb5/0x140
[  339.206034]  __alloc_pages_nodemask+0xa80/0xde0
[  339.210705]  ? zap_class+0x640/0x640
[  339.214440]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  339.219467]  ? find_held_lock+0x36/0x1c0
[  339.223534]  ? ____cache_alloc_node+0x1c7/0x1e0
[  339.228204]  ? lock_downgrade+0x900/0x900
[  339.232361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.237925]  cache_grow_begin+0xa5/0x8c0
[  339.241989]  ? do_raw_spin_unlock+0xa7/0x330
[  339.246412]  fallback_alloc+0x204/0x2e0
[  339.250396]  ____cache_alloc_node+0x1c7/0x1e0
[  339.254894]  kmem_cache_alloc_node+0xe3/0x730
[  339.259402]  ? ipv6_get_ifaddr+0x42e/0x620
[  339.263683]  __alloc_skb+0x119/0x770
[  339.267399]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  339.272694]  ? netdev_alloc_frag+0x1f0/0x1f0
[  339.277110]  ? lock_downgrade+0x900/0x900
[  339.281280]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.286817]  ? refcount_sub_and_test_checked+0x203/0x310
[  339.292272]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  339.297735]  ? addrconf_rs_timer+0x690/0x690
[  339.302156]  ndisc_alloc_skb+0x144/0x340
[  339.306236]  ndisc_send_rs+0x331/0x6e0
[  339.310128]  addrconf_rs_timer+0x314/0x690
[  339.314365]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  339.318608]  call_timer_fn+0x272/0x920
[  339.322492]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  339.326747]  ? process_timeout+0x40/0x40
[  339.330831]  ? mark_held_locks+0xc7/0x130
[  339.334976]  ? _raw_spin_unlock_irq+0x27/0x80
[  339.339465]  ? _raw_spin_unlock_irq+0x27/0x80
[  339.343957]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  339.348213]  ? lockdep_hardirqs_on+0x296/0x5b0
[  339.352795]  ? trace_hardirqs_on+0xbd/0x310
[  339.357112]  ? kasan_check_read+0x11/0x20
[  339.361279]  ? __run_timers+0x7da/0xc70
[  339.365265]  ? trace_hardirqs_off_caller+0x310/0x310
[  339.370368]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  339.374631]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  339.378883]  __run_timers+0x7e5/0xc70
[  339.382693]  ? timer_fixup_init+0x70/0x70
[  339.386842]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  339.391861]  ? zap_class+0x640/0x640
[  339.395591]  ? print_usage_bug+0xc0/0xc0
[  339.399653]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  339.404869]  ? find_held_lock+0x36/0x1c0
[  339.408942]  ? zap_class+0x640/0x640
[  339.412663]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.418208]  ? check_preemption_disabled+0x48/0x280
[  339.423224]  ? __lock_is_held+0xb5/0x140
[  339.427297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.432830]  ? check_preemption_disabled+0x48/0x280
[  339.437844]  run_timer_softirq+0x52/0xb0
[  339.441900]  ? rcu_read_lock_sched_held+0x14f/0x180
[  339.446942]  __do_softirq+0x308/0xb7e
[  339.450737]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  339.455256]  ? lock_downgrade+0x900/0x900
[  339.459423]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  339.464525]  ? pvclock_read_flags+0x160/0x160
[  339.469017]  ? lapic_next_event+0x5a/0x90
[  339.473158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.478707]  ? kvm_clock_read+0x18/0x30
[  339.482672]  ? kvm_sched_clock_read+0x9/0x20
[  339.487078]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.492620]  ? check_preemption_disabled+0x48/0x280
[  339.497669]  irq_exit+0x17f/0x1c0
[  339.501150]  smp_apic_timer_interrupt+0x1cb/0x760
[  339.505985]  ? smp_reschedule_interrupt+0x109/0x650
[  339.511012]  ? smp_call_function_single_interrupt+0x650/0x650
[  339.516894]  ? interrupt_entry+0xb5/0xc0
[  339.520955]  ? trace_hardirqs_off_caller+0xbb/0x310
[  339.525962]  ? trace_hardirqs_off_caller+0xbb/0x310
[  339.530982]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  339.535833]  ? trace_hardirqs_on_caller+0x310/0x310
[  339.540869]  ? trace_hardirqs_on_caller+0x310/0x310
[  339.545920]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  339.550760]  apic_timer_interrupt+0xf/0x20
[  339.554997]  </IRQ>
[  339.557246] RIP: 0010:dump_stack+0x358/0x39d
[  339.561646] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 01 95 ef f9 48 83 3d 19 b8 7e 01 00 0f 84 63 fe ff ff e8 0e 47 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 fb 46 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  339.580536] RSP: 0000:ffff8801c29261e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  339.588235] RAX: ffff8801c23a0500 RBX: 1ffffffff12a3f76 RCX: 1ffff100384741be
[  339.595500] RDX: 0000000000000000 RSI: ffffffff87d343a2 RDI: 0000000000000293
[  339.602765] RBP: ffff8801c2926290 R08: ffff8801c23a0df0 R09: 0000000000000006
[  339.610029] R10: 0000000000000000 R11: ffff8801c23a0500 R12: 1ffff10038524c45
[  339.617297] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000001
[  339.624615]  ? dump_stack+0x34f/0x39d
[  339.628426]  ? dump_stack_print_info.cold.1+0x20/0x20
[  339.633634]  ? mark_held_locks+0x130/0x130
[  339.637867]  ? mark_held_locks+0x130/0x130
[  339.642108]  dump_header+0x27b/0xf72
[  339.645832]  ? pagefault_out_of_memory+0x197/0x197
[  339.650770]  ? __lock_acquire+0x62f/0x4c20
[  339.655008]  ? percpu_ref_get_many+0x240/0x240
[  339.659638]  ? print_usage_bug+0xc0/0xc0
[  339.663707]  ? zap_class+0x640/0x640
[  339.667419]  ? print_usage_bug+0xc0/0xc0
[  339.671477]  ? print_usage_bug+0xc0/0xc0
[  339.675563]  ? zap_class+0x640/0x640
[  339.679278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.684820]  ? find_held_lock+0x36/0x1c0
[  339.688902]  ? mark_held_locks+0xc7/0x130
[  339.693059]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  339.698164]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  339.703269]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  339.707857]  ? trace_hardirqs_on+0xbd/0x310
[  339.712199]  ? kasan_check_read+0x11/0x20
[  339.716345]  ? ___ratelimit+0x3b4/0x672
[  339.720334]  ? trace_hardirqs_off_caller+0x310/0x310
[  339.725442]  ? trace_hardirqs_on+0x310/0x310
[  339.729849]  ? lock_downgrade+0x900/0x900
[  339.734001]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  339.739102]  ? ___ratelimit+0x3b9/0x672
[  339.743270]  ? idr_get_free+0xf70/0xf70
[  339.747247]  ? find_held_lock+0x36/0x1c0
[  339.751317]  oom_kill_process.cold.27+0x10/0x903
[  339.756074]  ? zap_class+0x640/0x640
[  339.759788]  ? check_preemption_disabled+0x48/0x280
[  339.764821]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  339.769748]  ? kasan_check_read+0x11/0x20
[  339.773890]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  339.779213]  ? oom_evaluate_task+0x540/0x540
[  339.783625]  ? find_held_lock+0x36/0x1c0
[  339.787687]  ? out_of_memory+0x974/0x1430
[  339.791840]  ? lock_downgrade+0x900/0x900
[  339.796029]  ? check_preemption_disabled+0x48/0x280
[  339.801050]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  339.805975]  ? kasan_check_read+0x11/0x20
[  339.810121]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  339.815390]  ? rcu_softirq_qs+0x20/0x20
[  339.819370]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.824935]  ? oom_evaluate_task+0x302/0x540
[  339.829348]  out_of_memory+0xa84/0x1430
[  339.833344]  ? oom_killer_disable+0x3a0/0x3a0
[  339.837839]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  339.842766]  ? __ww_mutex_check_waiters+0x160/0x160
[  339.847791]  __alloc_pages_slowpath+0x2354/0x2e10
[  339.852659]  ? warn_alloc+0x120/0x120
[  339.856460]  ? mark_held_locks+0x130/0x130
[  339.860707]  ? find_get_entry+0xaae/0x1120
[  339.864948]  ? filemap_map_pages+0x1a20/0x1a20
[  339.869531]  ? zap_class+0x640/0x640
[  339.873754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.879308]  ? check_preemption_disabled+0x48/0x280
[  339.884337]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.889872]  ? should_fail+0x22d/0xd01
[  339.893780]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  339.898887]  ? zap_class+0x640/0x640
[  339.902627]  ? __lock_is_held+0xb5/0x140
[  339.906713]  ? mark_held_locks+0x130/0x130
[  339.910946]  ? lock_release+0xa00/0xa00
[  339.914942]  ? perf_trace_sched_process_exec+0x860/0x860
[  339.920391]  ? xa_load+0x2ba/0x460
[  339.923938]  ? lock_downgrade+0x900/0x900
[  339.928089]  ? __might_sleep+0x95/0x190
[  339.932066]  __alloc_pages_nodemask+0xa80/0xde0
[  339.936741]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  339.941755]  ? __page_cache_alloc+0x191/0x5c0
[  339.946247]  ? xa_load+0x2e1/0x460
[  339.949815]  ? xa_clear_mark+0x40/0x40
[  339.953706]  ? zap_class+0x640/0x640
[  339.957456]  ? zap_class+0x640/0x640
[  339.961180]  ? zap_class+0x640/0x640
[  339.964916]  ? __do_page_cache_readahead+0x663/0x810
[  339.970023]  ? find_held_lock+0x36/0x1c0
[  339.974087]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  339.979622]  alloc_pages_current+0x173/0x350
[  339.984026]  __page_cache_alloc+0x38c/0x5c0
[  339.988352]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  339.993294]  ? kasan_check_read+0x11/0x20
[  339.997449]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.002726]  ? generic_perform_write+0x6a0/0x6a0
[  340.007475]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  340.013023]  ? check_preemption_disabled+0x48/0x280
[  340.018040]  filemap_fault+0x1595/0x25f0
[  340.022106]  ? __lock_page_or_retry+0xa00/0xa00
[  340.026774]  ? mark_held_locks+0x130/0x130
[  340.031028]  ? filemap_map_pages+0xd6b/0x1a20
[  340.035526]  ? lock_downgrade+0x900/0x900
[  340.039677]  ? check_preemption_disabled+0x48/0x280
[  340.044707]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  340.049654]  ? kasan_check_read+0x11/0x20
[  340.053802]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.059078]  ? rcu_softirq_qs+0x20/0x20
[  340.063065]  ? filemap_map_pages+0xd92/0x1a20
[  340.067567]  ? print_usage_bug+0xc0/0xc0
[  340.071647]  ? find_get_entries_tag+0x1400/0x1400
[  340.076490]  ? __kasan_slab_free+0x102/0x150
[  340.080896]  ? kasan_slab_free+0xe/0x10
[  340.084882]  ? kmem_cache_free+0x83/0x290
[  340.089040]  ? __sigqueue_free.part.29+0x74/0x90
[  340.093842]  ? lock_acquire+0x1ed/0x520
[  340.097815]  ? ext4_filemap_fault+0x7a/0xad
[  340.102150]  ? lock_release+0xa00/0xa00
[  340.106127]  ? perf_trace_sched_process_exec+0x860/0x860
[  340.111577]  ? print_usage_bug+0xc0/0xc0
[  340.115658]  ? print_usage_bug+0xc0/0xc0
[  340.119747]  ? down_read+0x8d/0x120
[  340.123370]  ? ext4_filemap_fault+0x7a/0xad
[  340.127695]  ? __down_interruptible+0x700/0x700
[  340.132381]  ext4_filemap_fault+0x82/0xad
[  340.136543]  __do_fault+0x100/0x6b0
[  340.140177]  ? pmd_devmap_trans_unstable+0x220/0x220
[  340.145285]  ? mark_held_locks+0x130/0x130
[  340.149520]  ? mark_held_locks+0x130/0x130
[  340.153771]  ? rcu_lockdep_current_cpu_online+0x1a4/0x210
[  340.159323]  ? rcu_pm_notify+0xc0/0xc0
[  340.163237]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  340.168781]  __handle_mm_fault+0x3ea0/0x5be0
[  340.173199]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  340.178046]  ? _raw_spin_unlock_irq+0x27/0x80
[  340.182543]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  340.187130]  ? trace_hardirqs_on+0xbd/0x310
[  340.191451]  ? kasan_check_read+0x11/0x20
[  340.195717]  ? __set_current_blocked+0xdf/0x120
[  340.200392]  ? trace_hardirqs_off_caller+0x310/0x310
[  340.205508]  ? zap_class+0x640/0x640
[  340.209219]  ? zap_class+0x640/0x640
[  340.212946]  ? find_held_lock+0x36/0x1c0
[  340.217018]  ? handle_mm_fault+0x42a/0xc70
[  340.221255]  ? lock_downgrade+0x900/0x900
[  340.225403]  ? check_preemption_disabled+0x48/0x280
[  340.230433]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  340.235361]  ? kasan_check_read+0x11/0x20
[  340.239512]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.244800]  ? rcu_softirq_qs+0x20/0x20
[  340.248772]  ? trace_hardirqs_off_caller+0x310/0x310
[  340.253875]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  340.259414]  ? check_preemption_disabled+0x48/0x280
[  340.264436]  handle_mm_fault+0x54f/0xc70
[  340.268499]  ? __handle_mm_fault+0x5be0/0x5be0
[  340.273085]  ? find_vma+0x34/0x190
[  340.276626]  __do_page_fault+0x5e8/0xe60
[  340.280686]  ? exit_to_usermode_loop+0x1f4/0x380
[  340.285456]  do_page_fault+0xf2/0x7e0
[  340.289272]  ? vmalloc_sync_all+0x30/0x30
[  340.293462]  ? error_entry+0x70/0xd0
[  340.297179]  ? trace_hardirqs_off_caller+0xbb/0x310
[  340.302200]  ? trace_hardirqs_on_caller+0xc0/0x310
[  340.307137]  ? syscall_return_slowpath+0x5e0/0x5e0
[  340.312066]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.316921]  ? trace_hardirqs_on_caller+0x310/0x310
[  340.321940]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  340.327387]  ? prepare_exit_to_usermode+0x291/0x3b0
[  340.332413]  ? page_fault+0x8/0x30
[  340.335949]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.340785]  ? page_fault+0x8/0x30
[  340.344347]  page_fault+0x1e/0x30
[  340.347794] RIP: 0033:0x45db60
[  340.350990] Code: Bad RIP value.
[  340.354345] RSP: 002b:000000c420009ab8 EFLAGS: 00010286
[  340.359706] RAX: 0000000000000000 RBX: 00000000014edf40 RCX: 000000000045ddf3
[  340.366967] RDX: 000000c420009ac0 RSI: 000000c420009bf0 RDI: 0000000000000011
[  340.374258] RBP: 00007fffed0cf270 R08: 0000000000000000 R09: 0000000000000000
[  340.381533] R10: 0000000000000000 R11: 0000000000000286 R12: 000000c428770098
[  340.388796] R13: 000000000000000f R14: 0000000000b81d20 R15: ffffffffffff7fff
[  340.396090] warn_alloc_show_mem: 1 callbacks suppressed
[  340.396101] CPU: 0 PID: 9868 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #142
[  340.396103] Mem-Info:
[  340.396131] active_anon:54051 inactive_anon:192 isolated_anon:0
[  340.396131]  active_file:9 inactive_file:20 isolated_file:0
[  340.396131]  unevictable:0 dirty:0 writeback:0 unstable:0
[  340.396131]  slab_reclaimable:9164 slab_unreclaimable:1461827
[  340.396131]  mapped:24578 shmem:244 pagetables:502 bounce:0
[  340.396131]  free:13735 free_pcp:540 free_cma:0
[  340.401472] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  340.408751] Node 0 active_anon:216204kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:98312kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 200704kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  340.411144] Call Trace:
[  340.443927] 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
[  340.453272]  <IRQ>
[  340.480665] lowmem_reserve[]: 0 2818 6321 6321
[  340.483261]  dump_stack+0x244/0x39d
[  340.509338] Node 0 DMA32 free:25088kB min:30052kB low:37564kB high:45076kB active_anon:6144kB 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
[  340.511481]  ? dump_stack_print_info.cold.1+0x20/0x20
[  340.516032] lowmem_reserve[]: 0 0 3503 3503
[  340.519659]  warn_alloc.cold.116+0xb7/0x1bd
[  340.547385] Node 0 Normal free:13944kB min:37364kB low:46704kB high:56044kB active_anon:210060kB inactive_anon:768kB active_file:36kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2008kB bounce:0kB free_pcp:1912kB local_pcp:1464kB free_cma:0kB
[  340.552568]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  340.556874] lowmem_reserve[]: 0 0 0 0
[  340.561184]  ? lock_downgrade+0x900/0x900
[  340.590224] 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
[  340.595061]  ? trace_hardirqs_off+0xb8/0x310
[  340.598847] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 2*16kB (UM) 4*32kB (UM) 3*64kB (M) 3*128kB (UM) 3*256kB (UM) 2*512kB (M) 4*1024kB (UM) 1*2048kB (M) 4*4096kB (M) = 25088kB
[  340.602996]  ? trace_hardirqs_off+0xb8/0x310
[  340.616505] Node 0 Normal: 924*4kB (MEH) 407*8kB (UME) 161*16kB (ME) 79*32kB (UME) 30*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13976kB
[  340.620919]  __alloc_pages_slowpath+0x26e8/0x2e10
[  340.636152] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  340.640568]  ? warn_alloc+0x120/0x120
[  340.654656] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  340.659499]  ? print_usage_bug+0xc0/0xc0
[  340.668324] 273 total pagecache pages
[  340.672117]  ? warn_alloc+0x120/0x120
[  340.680721] 0 pages in swap cache
[  340.684770]  ? warn_alloc+0x120/0x120
[  340.688549] Swap cache stats: add 0, delete 0, find 0/0
[  340.692352]  ? print_usage_bug+0xc0/0xc0
[  340.695784] Free swap  = 0kB
[  340.699575]  ? kvm_clock_read+0x18/0x30
[  340.704921] Total swap = 0kB
[  340.708995]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  340.711989] 1965979 pages RAM
[  340.715954]  ? print_usage_bug+0xc0/0xc0
[  340.718961] 0 pages HighMem/MovableOnly
[  340.723980]  ? __lock_acquire+0x62f/0x4c20
[  340.727057] 342853 pages reserved
[  340.731104]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  340.735047] 0 pages cma reserved
[  340.739268]  ? should_fail+0x22d/0xd01
[  340.742756] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  340.748234]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.748252]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  340.751662] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  340.755493]  ? __lock_acquire+0x62f/0x4c20
[  340.761961] syz-fuzzer cpuset=/ mems_allowed=0
[  340.767232]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  340.796480]  ? __lock_acquire+0x62f/0x4c20
[  340.800825]  ? should_fail+0x22d/0xd01
[  340.804706]  ? rcu_irq_exit+0x1a2/0x390
[  340.808687]  ? mark_held_locks+0x130/0x130
[  340.812932]  ? mark_held_locks+0x130/0x130
[  340.817183]  ? mark_held_locks+0xc7/0x130
[  340.821334]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  340.826349]  ? zap_class+0x640/0x640
[  340.830095]  ? print_usage_bug+0xc0/0xc0
[  340.834156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.839696]  ? check_preemption_disabled+0x48/0x280
[  340.844717]  ? __lock_is_held+0xb5/0x140
[  340.848781]  __alloc_pages_nodemask+0xa80/0xde0
[  340.853448]  ? zap_class+0x640/0x640
[  340.857189]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  340.862225]  ? find_held_lock+0x36/0x1c0
[  340.866298]  ? ____cache_alloc_node+0x1c7/0x1e0
[  340.870986]  ? lock_downgrade+0x900/0x900
[  340.875140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.880679]  cache_grow_begin+0xa5/0x8c0
[  340.884736]  ? do_raw_spin_unlock+0xa7/0x330
[  340.889150]  fallback_alloc+0x204/0x2e0
[  340.893133]  ____cache_alloc_node+0x1c7/0x1e0
[  340.897657]  kmem_cache_alloc_node+0xe3/0x730
[  340.902168]  ? ipv6_get_ifaddr+0x42e/0x620
[  340.906415]  __alloc_skb+0x119/0x770
[  340.910128]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.915407]  ? netdev_alloc_frag+0x1f0/0x1f0
[  340.919827]  ? lock_downgrade+0x900/0x900
[  340.923981]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.929517]  ? refcount_sub_and_test_checked+0x203/0x310
[  340.934966]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  340.940410]  ? addrconf_rs_timer+0x690/0x690