]  ? __switch_to_asm+0x34/0x70
[  246.253085]  ? __switch_to_asm+0x34/0x70
[  246.257160]  ? zap_class+0x640/0x640
[  246.260875]  ? zap_class+0x640/0x640
[  246.264608]  ? __x64_sys_futex+0x53e/0x6a0
[  246.268852]  ? find_held_lock+0x36/0x1c0
[  246.272949]  ? handle_mm_fault+0x42a/0xc70
[  246.277199]  ? lock_downgrade+0x900/0x900
[  246.281411]  ? check_preemption_disabled+0x48/0x280
[  246.286447]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  246.291382]  ? kasan_check_read+0x11/0x20
[  246.295532]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.300817]  ? rcu_softirq_qs+0x20/0x20
[  246.304792]  ? trace_hardirqs_off_caller+0x310/0x310
[  246.309908]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.315451]  ? check_preemption_disabled+0x48/0x280
[  246.320474]  handle_mm_fault+0x54f/0xc70
[  246.324540]  ? __handle_mm_fault+0x5be0/0x5be0
[  246.329127]  ? find_vma+0x34/0x190
[  246.332673]  __do_page_fault+0x5e8/0xe60
[  246.336734]  ? trace_hardirqs_off+0xb8/0x310
[  246.341152]  do_page_fault+0xf2/0x7e0
[  246.344955]  ? vmalloc_sync_all+0x30/0x30
[  246.349105]  ? error_entry+0x70/0xd0
[  246.352822]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.357851]  ? trace_hardirqs_on_caller+0xc0/0x310
[  246.362799]  ? syscall_return_slowpath+0x5e0/0x5e0
[  246.367727]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.372573]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.377595]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  246.383054]  ? prepare_exit_to_usermode+0x291/0x3b0
[  246.388076]  ? page_fault+0x8/0x30
[  246.391620]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.396470]  ? page_fault+0x8/0x30
[  246.400019]  page_fault+0x1e/0x30
[  246.403471] RIP: 0033:0x44b69a
[  246.406679] Code: Bad RIP value.
[  246.410041] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  246.415404] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  246.422669] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  246.429935] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  246.437217] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  246.444518] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  246.451815] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  246.452284] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  246.459018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  246.469229] syz-fuzzer cpuset=/ mems_allowed=0
[  246.478571] Call Trace:
[  246.485722]  <IRQ>
[  246.487902]  dump_stack+0x244/0x39d
[  246.491535]  ? dump_stack_print_info.cold.1+0x20/0x20
[  246.496738]  warn_alloc.cold.116+0xb7/0x1bd
[  246.501075]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  246.505970]  ? lock_downgrade+0x900/0x900
[  246.510130]  ? trace_hardirqs_off+0xb8/0x310
[  246.514546]  ? trace_hardirqs_off+0xb8/0x310
[  246.518963]  __alloc_pages_slowpath+0x26e8/0x2e10
[  246.523877]  ? warn_alloc+0x120/0x120
[  246.527704]  ? print_usage_bug+0xc0/0xc0
[  246.531764]  ? warn_alloc+0x120/0x120
[  246.535582]  ? warn_alloc+0x120/0x120
[  246.539423]  ? print_usage_bug+0xc0/0xc0
[  246.543488]  ? print_usage_bug+0xc0/0xc0
[  246.547554]  ? __lock_acquire+0x62f/0x4c20
[  246.551797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.557335]  ? should_fail+0x22d/0xd01
[  246.561226]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  246.566331]  ? __lock_acquire+0x62f/0x4c20
[  246.570574]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  246.575679]  ? __lock_acquire+0x62f/0x4c20
[  246.579921]  ? should_fail+0x22d/0xd01
[  246.583807]  ? find_held_lock+0x36/0x1c0
[  246.587885]  ? mark_held_locks+0x130/0x130
[  246.592132]  ? mark_held_locks+0x130/0x130
[  246.596364]  ? zap_class+0x640/0x640
[  246.600078]  ? zap_class+0x640/0x640
[  246.603807]  ? print_usage_bug+0xc0/0xc0
[  246.607880]  ? do_raw_spin_unlock+0xa7/0x330
[  246.612307]  ? zap_class+0x640/0x640
[  246.616019]  ? print_usage_bug+0xc0/0xc0
[  246.620083]  ? wq_watchdog_touch+0x9c/0xfe
[  246.624341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.629910]  ? check_preemption_disabled+0x48/0x280
[  246.634939]  ? __lock_is_held+0xb5/0x140
[  246.639008]  __alloc_pages_nodemask+0xa80/0xde0
[  246.643678]  ? zap_class+0x640/0x640
[  246.647400]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  246.652427]  ? find_held_lock+0x36/0x1c0
[  246.656501]  ? ____cache_alloc_node+0x1c7/0x1e0
[  246.661166]  ? lock_downgrade+0x900/0x900
[  246.665319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.670860]  cache_grow_begin+0xa5/0x8c0
[  246.674924]  ? do_raw_spin_unlock+0xa7/0x330
[  246.679393]  fallback_alloc+0x204/0x2e0
[  246.683377]  ____cache_alloc_node+0x1c7/0x1e0
[  246.687883]  kmem_cache_alloc_node+0xe3/0x730
[  246.692391]  ? ipv6_get_ifaddr+0x42e/0x620
[  246.696638]  __alloc_skb+0x119/0x770
[  246.700355]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.705640]  ? netdev_alloc_frag+0x1f0/0x1f0
[  246.710053]  ? lock_downgrade+0x900/0x900
[  246.714211]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.719750]  ? refcount_sub_and_test_checked+0x203/0x310
[  246.725205]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  246.730660]  ? addrconf_rs_timer+0x690/0x690
[  246.735087]  ndisc_alloc_skb+0x144/0x340
[  246.739156]  ndisc_send_rs+0x331/0x6e0
[  246.743049]  addrconf_rs_timer+0x314/0x690
[  246.747287]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.751728]  call_timer_fn+0x272/0x920
[  246.755619]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.759868]  ? process_timeout+0x40/0x40
[  246.763955]  ? __run_timers+0x7da/0xc70
[  246.767933]  ? _raw_spin_unlock_irq+0x27/0x80
[  246.772426]  ? _raw_spin_unlock_irq+0x27/0x80
[  246.776924]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.781162]  ? lockdep_hardirqs_on+0x296/0x5b0
[  246.785764]  ? trace_hardirqs_on+0xbd/0x310
[  246.790091]  ? kasan_check_read+0x11/0x20
[  246.794241]  ? __run_timers+0x7da/0xc70
[  246.798234]  ? trace_hardirqs_off_caller+0x310/0x310
[  246.803350]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.807594]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  246.811829]  __run_timers+0x7e5/0xc70
[  246.815640]  ? timer_fixup_init+0x70/0x70
[  246.819803]  ? lock_acquire+0x1ed/0x520
[  246.823775]  ? zap_class+0x640/0x640
[  246.827493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.833045]  ? kasan_check_read+0x11/0x20
[  246.837196]  ? do_raw_spin_lock+0x14f/0x350
[  246.841529]  ? find_held_lock+0x36/0x1c0
[  246.845595]  ? zap_class+0x640/0x640
[  246.849312]  ? pvclock_read_flags+0x160/0x160
[  246.853828]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.859369]  ? check_preemption_disabled+0x48/0x280
[  246.864396]  ? __lock_is_held+0xb5/0x140
[  246.868461]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.874000]  ? check_preemption_disabled+0x48/0x280
[  246.879023]  run_timer_softirq+0x52/0xb0
[  246.883097]  ? rcu_read_lock_sched_held+0x14f/0x180
[  246.888123]  __do_softirq+0x308/0xb7e
[  246.891951]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  246.896451]  ? lock_downgrade+0x900/0x900
[  246.900603]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  246.905736]  ? pvclock_read_flags+0x160/0x160
[  246.910237]  ? lapic_next_event+0x5a/0x90
[  246.914389]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.919937]  ? kvm_clock_read+0x18/0x30
[  246.923918]  ? kvm_sched_clock_read+0x9/0x20
[  246.928331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.933871]  ? check_preemption_disabled+0x48/0x280
[  246.938911]  irq_exit+0x17f/0x1c0
[  246.942369]  smp_apic_timer_interrupt+0x1cb/0x760
[  246.947240]  ? smp_call_function_single_interrupt+0x159/0x650
[  246.953127]  ? smp_call_function_single_interrupt+0x650/0x650
[  246.959011]  ? interrupt_entry+0xb5/0xc0
[  246.963078]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.968093]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.973116]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.977963]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.982981]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.988010]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.992863]  apic_timer_interrupt+0xf/0x20
[  246.997097]  </IRQ>
[  246.999341] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  247.004271] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  247.023171] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  247.030879] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  247.038156] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  247.045422] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  247.052689] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  247.059960] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  247.067274]  skb_clone+0x1bb/0x500
[  247.070824]  ? skb_split+0x11e0/0x11e0
[  247.074718]  ? check_preemption_disabled+0x48/0x280
[  247.080006]  ? __this_cpu_preempt_check+0x1c/0x20
[  247.084850]  ? __bpf_redirect+0x54b/0xb20
[  247.089004]  bpf_clone_redirect+0xb9/0x490
[  247.093248]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  247.098269]  ? __sched_text_start+0x8/0x8
[  247.102418]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  247.107185]  ? find_held_lock+0x36/0x1c0
[  247.111258]  ? lock_acquire+0x1ed/0x520
[  247.115246]  ? bpf_test_run+0x3cb/0x780
[  247.119222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.124763]  ? check_preemption_disabled+0x48/0x280
[  247.129787]  ? kasan_check_read+0x11/0x20
[  247.133934]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.139209]  ? rcu_softirq_qs+0x20/0x20
[  247.143185]  ? preempt_schedule+0x4d/0x60
[  247.147334]  ? ___preempt_schedule+0x16/0x18
[  247.151752]  ? bpf_test_run+0x25d/0x780
[  247.155766]  ? netlink_diag_dump+0x2a0/0x2a0
[  247.160182]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  247.164947]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  247.169713]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  247.174557]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  247.180098]  ? fput+0x130/0x1a0
[  247.183379]  ? __bpf_prog_get+0x9b/0x290
[  247.187444]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  247.192286]  ? bpf_prog_test_run+0x130/0x1a0
[  247.196722]  ? __x64_sys_bpf+0x3d8/0x520
[  247.200784]  ? bpf_prog_get+0x20/0x20
[  247.204621]  ? do_syscall_64+0x1b9/0x820
[  247.208679]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  247.214042]  ? syscall_return_slowpath+0x5e0/0x5e0
[  247.218974]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.223820]  ? trace_hardirqs_on_caller+0x310/0x310
[  247.228839]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  247.233857]  ? prepare_exit_to_usermode+0x291/0x3b0
[  247.238878]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.243738]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  247.249121] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  247.249135] warn_alloc_show_mem: 8 callbacks suppressed
[  247.249139] Mem-Info:
[  247.256068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  247.261437] active_anon:47227 inactive_anon:190 isolated_anon:0
[  247.261437]  active_file:11 inactive_file:14 isolated_file:0
[  247.261437]  unevictable:0 dirty:0 writeback:0 unstable:0
[  247.261437]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  247.261437]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  247.261437]  free:13756 free_pcp:235 free_cma:0
[  247.263808] Call Trace:
[  247.273198] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  247.306045]  <IRQ>
[  247.308620] 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
[  247.336131]  dump_stack+0x244/0x39d
[  247.338260] lowmem_reserve[]: 0 2818 6321 6321
[  247.364404]  ? dump_stack_print_info.cold.1+0x20/0x20
[  247.368010] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:220kB free_cma:0kB
[  247.372593]  warn_alloc.cold.116+0xb7/0x1bd
[  247.377739] lowmem_reserve[]: 0 0 3503 3503
[  247.405246]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  247.409543] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:40kB free_cma:0kB
[  247.413864]  ? lock_downgrade+0x900/0x900
[  247.418679] lowmem_reserve[]: 0 0 0 0
[  247.447487]  ? trace_hardirqs_off+0xb8/0x310
[  247.451613] 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
[  247.455425]  ? trace_hardirqs_off+0xb8/0x310
[  247.459805] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  247.473333]  __alloc_pages_slowpath+0x26e8/0x2e10
[  247.477709] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  247.492989]  ? warn_alloc+0x120/0x120
[  247.497790] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  247.512867]  ? find_held_lock+0x36/0x1c0
[  247.516645] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  247.525470]  ? warn_alloc+0x120/0x120
[  247.529512] 269 total pagecache pages
[  247.538081]  ? warn_alloc+0x120/0x120
[  247.541864] 0 pages in swap cache
[  247.545658]  ? print_usage_bug+0xc0/0xc0
[  247.549438] Swap cache stats: add 0, delete 0, find 0/0
[  247.552886]  ? print_usage_bug+0xc0/0xc0
[  247.556948] Free swap  = 0kB
[  247.562304]  ? __lock_acquire+0x62f/0x4c20
[  247.566345] Total swap = 0kB
[  247.569377]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.573585] 1965979 pages RAM
[  247.576603]  ? should_fail+0x22d/0xd01
[  247.582111] 0 pages HighMem/MovableOnly
[  247.585210]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.589075] 342853 pages reserved
[  247.593043]  ? __lock_acquire+0x62f/0x4c20
[  247.598119] 0 pages cma reserved
[  247.601572]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.606874] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  247.609832]  ? __lock_acquire+0x62f/0x4c20
[  247.609849]  ? should_fail+0x22d/0xd01
[  247.616099] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  247.622422]  ? mark_held_locks+0x130/0x130
[  247.626625] syz-executor4 cpuset=syz4 mems_allowed=0
[  247.630506]  ? mark_held_locks+0x130/0x130
[  247.654508]  ? try_to_wake_up+0x11c/0x1490
[  247.658748]  ? lock_downgrade+0x900/0x900
[  247.662908]  ? zap_class+0x640/0x640
[  247.666627]  ? print_usage_bug+0xc0/0xc0
[  247.670695]  ? kasan_check_read+0x11/0x20
[  247.674851]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.680391]  ? check_preemption_disabled+0x48/0x280
[  247.685422]  ? __lock_is_held+0xb5/0x140
[  247.689492]  __alloc_pages_nodemask+0xa80/0xde0
[  247.694162]  ? zap_class+0x640/0x640
[  247.697885]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  247.702930]  ? find_held_lock+0x36/0x1c0
[  247.707013]  ? ____cache_alloc_node+0x1c7/0x1e0
[  247.711691]  ? lock_downgrade+0x900/0x900
[  247.715870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.721422]  cache_grow_begin+0xa5/0x8c0
[  247.725485]  ? do_raw_spin_unlock+0xa7/0x330
[  247.729910]  fallback_alloc+0x204/0x2e0
[  247.733903]  ____cache_alloc_node+0x1c7/0x1e0
[  247.738408]  kmem_cache_alloc_node+0xe3/0x730
[  247.742921]  ? ipv6_get_ifaddr+0x42e/0x620
[  247.747169]  __alloc_skb+0x119/0x770
[  247.750888]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.756178]  ? netdev_alloc_frag+0x1f0/0x1f0
[  247.760588]  ? lock_downgrade+0x900/0x900
[  247.764750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.770293]  ? refcount_sub_and_test_checked+0x203/0x310
[  247.775751]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  247.781205]  ? addrconf_rs_timer+0x690/0x690
[  247.785627]  ndisc_alloc_skb+0x144/0x340
[  247.789695]  ndisc_send_rs+0x331/0x6e0
[  247.793589]  addrconf_rs_timer+0x314/0x690
[  247.797830]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.802076]  call_timer_fn+0x272/0x920
[  247.805968]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.810206]  ? process_timeout+0x40/0x40
[  247.814282]  ? mark_held_locks+0xc7/0x130
[  247.818433]  ? _raw_spin_unlock_irq+0x27/0x80
[  247.822931]  ? _raw_spin_unlock_irq+0x27/0x80
[  247.827434]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.831682]  ? lockdep_hardirqs_on+0x296/0x5b0
[  247.836273]  ? trace_hardirqs_on+0xbd/0x310
[  247.840598]  ? kasan_check_read+0x11/0x20
[  247.844747]  ? __run_timers+0x7da/0xc70
[  247.848728]  ? trace_hardirqs_off_caller+0x310/0x310
[  247.853861]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.858109]  __run_timers+0x7e5/0xc70
[  247.861928]  ? timer_fixup_init+0x70/0x70
[  247.866083]  ? kasan_check_read+0x11/0x20
[  247.870233]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.875513]  ? rcu_softirq_qs+0x20/0x20
[  247.879496]  ? mark_held_locks+0xc7/0x130
[  247.883803]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  247.888579]  ? retint_kernel+0x2d/0x2d
[  247.892467]  ? trace_hardirqs_on_caller+0xc0/0x310
[  247.897431]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  247.902203]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  247.907657]  ? zap_class+0x640/0x640
[  247.911384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.916938]  ? check_preemption_disabled+0x48/0x280
[  247.921976]  ? __lock_is_held+0xb5/0x140
[  247.926052]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.931592]  ? check_preemption_disabled+0x48/0x280
[  247.936649]  run_timer_softirq+0x52/0xb0
[  247.940718]  ? rcu_read_lock_sched_held+0x14f/0x180
[  247.945741]  __do_softirq+0x308/0xb7e
[  247.949643]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  247.954152]  ? lock_downgrade+0x900/0x900
[  247.958323]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  247.963438]  ? pvclock_read_flags+0x160/0x160
[  247.967938]  ? lapic_next_event+0x5a/0x90
[  247.972094]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.977640]  ? kvm_clock_read+0x18/0x30
[  247.981621]  ? kvm_sched_clock_read+0x9/0x20
[  247.986037]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.991579]  ? check_preemption_disabled+0x48/0x280
[  247.996610]  irq_exit+0x17f/0x1c0
[  248.000072]  smp_apic_timer_interrupt+0x1cb/0x760
[  248.004924]  ? smp_call_function_single_interrupt+0x650/0x650
[  248.010812]  ? interrupt_entry+0xb5/0xc0
[  248.014878]  ? trace_hardirqs_off_caller+0xbb/0x310
[  248.019908]  ? trace_hardirqs_off_caller+0xbb/0x310
[  248.024931]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.029777]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.034797]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.039813]  ? task_prio+0x50/0x50
[  248.043360]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.048908]  ? check_preemption_disabled+0x48/0x280
[  248.053943]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.058811]  apic_timer_interrupt+0xf/0x20
[  248.063044]  </IRQ>
[  248.065285] RIP: 0010:dump_stack+0x358/0x39d
[  248.069695] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  248.088599] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  248.096311] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  248.103596] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  248.110872] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  248.118152] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  248.125421] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  248.132717]  ? dump_stack+0x34f/0x39d
[  248.136538]  ? dump_stack_print_info.cold.1+0x20/0x20
[  248.141736]  ? mark_held_locks+0x130/0x130
[  248.145986]  ? mark_held_locks+0x130/0x130
[  248.150234]  dump_header+0x27b/0xf72
[  248.153960]  ? pagefault_out_of_memory+0x197/0x197
[  248.159072]  ? __lock_acquire+0x62f/0x4c20
[  248.163315]  ? percpu_ref_get_many+0x240/0x240
[  248.167913]  ? print_usage_bug+0xc0/0xc0
[  248.171984]  ? zap_class+0x640/0x640
[  248.175707]  ? print_usage_bug+0xc0/0xc0
[  248.179782]  ? print_usage_bug+0xc0/0xc0
[  248.183848]  ? zap_class+0x640/0x640
[  248.187571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.193117]  ? find_held_lock+0x36/0x1c0
[  248.197191]  ? mark_held_locks+0xc7/0x130
[  248.201343]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  248.206447]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  248.211550]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  248.216141]  ? trace_hardirqs_on+0xbd/0x310
[  248.220464]  ? kasan_check_read+0x11/0x20
[  248.224612]  ? ___ratelimit+0x3b4/0x672
[  248.228589]  ? trace_hardirqs_off_caller+0x310/0x310
[  248.233693]  ? trace_hardirqs_on+0x310/0x310
[  248.238108]  ? lock_downgrade+0x900/0x900
[  248.242264]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  248.247386]  ? ___ratelimit+0x3b9/0x672
[  248.251368]  ? idr_get_free+0xf70/0xf70
[  248.255341]  ? find_held_lock+0x36/0x1c0
[  248.259417]  oom_kill_process.cold.27+0x10/0x903
[  248.264177]  ? zap_class+0x640/0x640
[  248.267892]  ? check_preemption_disabled+0x48/0x280
[  248.272931]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  248.277862]  ? kasan_check_read+0x11/0x20
[  248.282021]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.287305]  ? oom_evaluate_task+0x540/0x540
[  248.291722]  ? find_held_lock+0x36/0x1c0
[  248.295791]  ? out_of_memory+0x974/0x1430
[  248.299943]  ? lock_downgrade+0x900/0x900
[  248.304097]  ? check_preemption_disabled+0x48/0x280
[  248.309117]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  248.314053]  ? kasan_check_read+0x11/0x20
[  248.318198]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.323475]  ? rcu_softirq_qs+0x20/0x20
[  248.327456]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.332991]  ? oom_evaluate_task+0x302/0x540
[  248.337410]  out_of_memory+0xa84/0x1430
[  248.341419]  ? oom_killer_disable+0x3a0/0x3a0
[  248.345924]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  248.350883]  ? __ww_mutex_check_waiters+0x160/0x160
[  248.355928]  __alloc_pages_slowpath+0x2354/0x2e10
[  248.360808]  ? warn_alloc+0x120/0x120
[  248.364609]  ? mark_held_locks+0x130/0x130
[  248.368855]  ? find_get_entry+0xaae/0x1120
[  248.373099]  ? filemap_map_pages+0x1a20/0x1a20
[  248.377688]  ? zap_class+0x640/0x640
[  248.381408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.386951]  ? check_preemption_disabled+0x48/0x280
[  248.391967]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.397508]  ? should_fail+0x22d/0xd01
[  248.401405]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  248.406514]  ? zap_class+0x640/0x640
[  248.410254]  ? __lock_is_held+0xb5/0x140
[  248.414326]  ? mark_held_locks+0x130/0x130
[  248.418568]  ? lock_release+0xa00/0xa00
[  248.422543]  ? perf_trace_sched_process_exec+0x860/0x860
[  248.428002]  ? xa_load+0x2ba/0x460
[  248.431543]  ? lock_downgrade+0x900/0x900
[  248.435699]  ? __might_sleep+0x95/0x190
[  248.439686]  __alloc_pages_nodemask+0xa80/0xde0
[  248.444363]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  248.449385]  ? __page_cache_alloc+0x191/0x5c0
[  248.453884]  ? xa_load+0x2e1/0x460
[  248.457438]  ? xa_clear_mark+0x40/0x40
[  248.461329]  ? zap_class+0x640/0x640
[  248.465057]  ? zap_class+0x640/0x640
[  248.468769]  ? zap_class+0x640/0x640
[  248.472484]  ? __do_page_cache_readahead+0x663/0x810
[  248.477596]  ? find_held_lock+0x36/0x1c0
[  248.481667]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  248.487212]  alloc_pages_current+0x173/0x350
[  248.491632]  __page_cache_alloc+0x38c/0x5c0
[  248.495957]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  248.500886]  ? kasan_check_read+0x11/0x20
[  248.505044]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.510326]  ? generic_perform_write+0x6a0/0x6a0
[  248.515085]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.520657]  ? check_preemption_disabled+0x48/0x280
[  248.525685]  filemap_fault+0x1595/0x25f0
[  248.529759]  ? __lock_page_or_retry+0xa00/0xa00
[  248.534444]  ? mark_held_locks+0x130/0x130
[  248.538692]  ? filemap_map_pages+0xd6b/0x1a20
[  248.543188]  ? lock_downgrade+0x900/0x900
[  248.547343]  ? check_preemption_disabled+0x48/0x280
[  248.552362]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  248.557309]  ? kasan_check_read+0x11/0x20
[  248.561469]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.566749]  ? rcu_softirq_qs+0x20/0x20
[  248.570739]  ? filemap_map_pages+0xd92/0x1a20
[  248.575246]  ? find_get_entries_tag+0x1400/0x1400
[  248.580107]  ? find_held_lock+0x36/0x1c0
[  248.584188]  ? lock_acquire+0x1ed/0x520
[  248.588299]  ? ext4_filemap_fault+0x7a/0xad
[  248.592626]  ? lock_release+0xa00/0xa00
[  248.596601]  ? perf_trace_sched_process_exec+0x860/0x860
[  248.602052]  ? print_usage_bug+0xc0/0xc0
[  248.606116]  ? print_usage_bug+0xc0/0xc0
[  248.610191]  ? down_read+0x8d/0x120
[  248.613816]  ? ext4_filemap_fault+0x7a/0xad
[  248.618139]  ? __down_interruptible+0x700/0x700
[  248.622818]  ext4_filemap_fault+0x82/0xad
[  248.626970]  __do_fault+0x100/0x6b0
[  248.630600]  ? find_held_lock+0x36/0x1c0
[  248.634667]  ? pmd_devmap_trans_unstable+0x220/0x220
[  248.639771]  ? mark_held_locks+0x130/0x130
[  248.644013]  ? mark_held_locks+0x130/0x130
[  248.648263]  ? kasan_check_read+0x11/0x20
[  248.652411]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.657956]  __handle_mm_fault+0x3ea0/0x5be0
[  248.662365]  ? perf_trace_lock+0x7a0/0x7a0
[  248.666608]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  248.671458]  ? __switch_to_asm+0x34/0x70
[  248.675516]  ? __switch_to_asm+0x34/0x70
[  248.679591]  ? zap_class+0x640/0x640
[  248.683302]  ? zap_class+0x640/0x640
[  248.687022]  ? __x64_sys_futex+0x53e/0x6a0
[  248.691265]  ? find_held_lock+0x36/0x1c0
[  248.695336]  ? handle_mm_fault+0x42a/0xc70
[  248.699573]  ? lock_downgrade+0x900/0x900
[  248.703726]  ? check_preemption_disabled+0x48/0x280
[  248.708746]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  248.713679]  ? kasan_check_read+0x11/0x20
[  248.717831]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.723109]  ? rcu_softirq_qs+0x20/0x20
[  248.727089]  ? trace_hardirqs_off_caller+0x310/0x310
[  248.732198]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.737743]  ? check_preemption_disabled+0x48/0x280
[  248.742770]  handle_mm_fault+0x54f/0xc70
[  248.746835]  ? __handle_mm_fault+0x5be0/0x5be0
[  248.751796]  ? find_vma+0x34/0x190
[  248.755345]  __do_page_fault+0x5e8/0xe60
[  248.759413]  ? trace_hardirqs_off+0xb8/0x310
[  248.763930]  do_page_fault+0xf2/0x7e0
[  248.767733]  ? vmalloc_sync_all+0x30/0x30
[  248.771885]  ? error_entry+0x70/0xd0
[  248.775611]  ? trace_hardirqs_off_caller+0xbb/0x310
[  248.780626]  ? trace_hardirqs_on_caller+0xc0/0x310
[  248.785559]  ? syscall_return_slowpath+0x5e0/0x5e0
[  248.790491]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.795340]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.800356]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  248.805812]  ? prepare_exit_to_usermode+0x291/0x3b0
[  248.810829]  ? page_fault+0x8/0x30
[  248.814373]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.819221]  ? page_fault+0x8/0x30
[  248.822780]  page_fault+0x1e/0x30
[  248.826234] RIP: 0033:0x44b69a
[  248.829441] Code: Bad RIP value.
[  248.832801] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  248.838163] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  248.845443] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  248.852715] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  248.859987] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  248.867259] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  248.874572] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  248.874575] Mem-Info:
[  248.874607] active_anon:47227 inactive_anon:190 isolated_anon:0
[  248.874607]  active_file:11 inactive_file:14 isolated_file:0
[  248.874607]  unevictable:0 dirty:0 writeback:0 unstable:0
[  248.874607]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  248.874607]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  248.874607]  free:13756 free_pcp:235 free_cma:0
[  248.881791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  248.884233] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  248.917081] Call Trace:
[  248.926428] 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
[  248.953922]  <IRQ>
[  248.956492] lowmem_reserve[]: 0 2818 6321 6321
[  248.982605]  dump_stack+0x244/0x39d
[  248.984741] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  248.989321]  ? dump_stack_print_info.cold.1+0x20/0x20
[  248.992923] lowmem_reserve[]: 0 0 3503 3503
[  249.020268]  warn_alloc.cold.116+0xb7/0x1bd
[  249.025424] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  249.029741]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  249.034035] lowmem_reserve[]: 0 0 0 0
[  249.062943]  ? lock_downgrade+0x900/0x900
[  249.067755] 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
[  249.071557]  ? trace_hardirqs_off+0xb8/0x310
[  249.075677] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  249.089236]  ? trace_hardirqs_off+0xb8/0x310
[  249.093645] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  249.108929]  __alloc_pages_slowpath+0x26e8/0x2e10
[  249.113316] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  249.128429]  ? warn_alloc+0x120/0x120
[  249.133234] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  249.142059]  ? print_usage_bug+0xc0/0xc0
[  249.145866] 269 total pagecache pages
[  249.154434]  ? warn_alloc+0x120/0x120
[  249.158482] 0 pages in swap cache
[  249.162284]  ? warn_alloc+0x120/0x120
[  249.166073] Swap cache stats: add 0, delete 0, find 0/0
[  249.169521]  ? print_usage_bug+0xc0/0xc0
[  249.173296] Free swap  = 0kB
[  249.178655]  ? kvm_clock_read+0x18/0x30
[  249.182686] Total swap = 0kB
[  249.185701]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  249.189651] 1965979 pages RAM
[  249.192673]  ? print_usage_bug+0xc0/0xc0
[  249.197668] 0 pages HighMem/MovableOnly
[  249.200761]  ? __lock_acquire+0x62f/0x4c20
[  249.204798] 342853 pages reserved
[  249.208796]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.213003] 0 pages cma reserved
[  249.216453]  ? should_fail+0x22d/0xd01
[  249.222052] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  249.225315]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.225335]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.229267] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  249.235686]  ? __lock_acquire+0x62f/0x4c20
[  249.240938] syz-fuzzer cpuset=/ mems_allowed=0
[  249.246050]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.270125]  ? __lock_acquire+0x62f/0x4c20
[  249.274358]  ? should_fail+0x22d/0xd01
[  249.278246]  ? rcu_irq_exit+0x1a2/0x390
[  249.282237]  ? mark_held_locks+0x130/0x130
[  249.286478]  ? mark_held_locks+0x130/0x130
[  249.290728]  ? mark_held_locks+0xc7/0x130
[  249.294882]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  249.299913]  ? zap_class+0x640/0x640
[  249.303630]  ? print_usage_bug+0xc0/0xc0
[  249.307698]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.313239]  ? check_preemption_disabled+0x48/0x280
[  249.318264]  ? __lock_is_held+0xb5/0x140
[  249.322337]  __alloc_pages_nodemask+0xa80/0xde0
[  249.327009]  ? zap_class+0x640/0x640
[  249.330732]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  249.335764]  ? find_held_lock+0x36/0x1c0
[  249.339842]  ? ____cache_alloc_node+0x1c7/0x1e0
[  249.344520]  ? lock_downgrade+0x900/0x900
[  249.348678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.354227]  cache_grow_begin+0xa5/0x8c0
[  249.358287]  ? do_raw_spin_unlock+0xa7/0x330
[  249.362718]  fallback_alloc+0x204/0x2e0
[  249.366714]  ____cache_alloc_node+0x1c7/0x1e0
[  249.371218]  kmem_cache_alloc_node+0xe3/0x730
[  249.375745]  ? ipv6_get_ifaddr+0x42e/0x620
[  249.380000]  __alloc_skb+0x119/0x770
[  249.383715]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.388998]  ? netdev_alloc_frag+0x1f0/0x1f0
[  249.393408]  ? lock_downgrade+0x900/0x900
[  249.397565]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.403105]  ? refcount_sub_and_test_checked+0x203/0x310
[  249.408564]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  249.414016]  ? addrconf_rs_timer+0x690/0x690
[  249.418438]  ndisc_alloc_skb+0x144/0x340
[  249.422513]  ndisc_send_rs+0x331/0x6e0
[  249.426407]  addrconf_rs_timer+0x314/0x690
[  249.430651]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.434910]  call_timer_fn+0x272/0x920
[  249.438803]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.443036]  ? process_timeout+0x40/0x40
[  249.447104]  ? __run_timers+0x7da/0xc70
[  249.451080]  ? _raw_spin_unlock_irq+0x27/0x80
[  249.455579]  ? _raw_spin_unlock_irq+0x27/0x80
[  249.460075]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.464319]  ? lockdep_hardirqs_on+0x296/0x5b0
[  249.468912]  ? trace_hardirqs_on+0xbd/0x310
[  249.473236]  ? kasan_check_read+0x11/0x20
[  249.477384]  ? __run_timers+0x7da/0xc70
[  249.481361]  ? trace_hardirqs_off_caller+0x310/0x310
[  249.486469]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.490714]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.494946]  __run_timers+0x7e5/0xc70
[  249.498760]  ? timer_fixup_init+0x70/0x70
[  249.502920]  ? lock_acquire+0x1ed/0x520
[  249.506901]  ? zap_class+0x640/0x640
[  249.510620]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.516166]  ? kasan_check_read+0x11/0x20
[  249.520313]  ? do_raw_spin_lock+0x14f/0x350
[  249.524641]  ? find_held_lock+0x36/0x1c0
[  249.528706]  ? zap_class+0x640/0x640
[  249.532424]  ? pvclock_read_flags+0x160/0x160
[  249.536927]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.542486]  ? check_preemption_disabled+0x48/0x280
[  249.547519]  ? __lock_is_held+0xb5/0x140
[  249.551586]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.557129]  ? check_preemption_disabled+0x48/0x280
[  249.562153]  run_timer_softirq+0x52/0xb0
[  249.566219]  ? rcu_read_lock_sched_held+0x14f/0x180
[  249.571256]  __do_softirq+0x308/0xb7e
[  249.575059]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  249.579556]  ? lock_downgrade+0x900/0x900
[  249.583707]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  249.588819]  ? pvclock_read_flags+0x160/0x160
[  249.593358]  ? lapic_next_event+0x5a/0x90
[  249.597512]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.603061]  ? kvm_clock_read+0x18/0x30
[  249.607037]  ? kvm_sched_clock_read+0x9/0x20
[  249.611479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.617034]  ? check_preemption_disabled+0x48/0x280
[  249.622060]  irq_exit+0x17f/0x1c0
[  249.625529]  smp_apic_timer_interrupt+0x1cb/0x760
[  249.630373]  ? smp_call_function_single_interrupt+0x159/0x650
[  249.636259]  ? smp_call_function_single_interrupt+0x650/0x650
[  249.642157]  ? interrupt_entry+0xb5/0xc0
[  249.646222]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.651275]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.656298]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.661139]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.666158]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.671197]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.676050]  apic_timer_interrupt+0xf/0x20
[  249.680283]  </IRQ>
[  249.682527] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  249.687457] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  249.706356] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  249.714062] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  249.721328] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  249.728595] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  249.735874] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  249.743167] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  249.750481]  skb_clone+0x1bb/0x500
[  249.754032]  ? skb_split+0x11e0/0x11e0
[  249.757928]  ? check_preemption_disabled+0x48/0x280
[  249.762952]  ? __this_cpu_preempt_check+0x1c/0x20
[  249.767796]  ? __bpf_redirect+0x54b/0xb20
[  249.771969]  bpf_clone_redirect+0xb9/0x490
[  249.776236]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  249.781260]  ? __sched_text_start+0x8/0x8
[  249.785420]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  249.790206]  ? find_held_lock+0x36/0x1c0
[  249.794322]  ? lock_acquire+0x1ed/0x520
[  249.798296]  ? bpf_test_run+0x3cb/0x780
[  249.802289]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.807830]  ? check_preemption_disabled+0x48/0x280
[  249.812857]  ? kasan_check_read+0x11/0x20
[  249.817003]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.822279]  ? rcu_softirq_qs+0x20/0x20
[  249.826259]  ? preempt_schedule+0x4d/0x60
[  249.830407]  ? ___preempt_schedule+0x16/0x18
[  249.834824]  ? bpf_test_run+0x25d/0x780
[  249.838814]  ? netlink_diag_dump+0x2a0/0x2a0
[  249.843229]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  249.847997]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  249.852767]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  249.857615]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  249.863156]  ? fput+0x130/0x1a0
[  249.866445]  ? __bpf_prog_get+0x9b/0x290
[  249.870515]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  249.875352]  ? bpf_prog_test_run+0x130/0x1a0
[  249.879762]  ? __x64_sys_bpf+0x3d8/0x520
[  249.884018]  ? bpf_prog_get+0x20/0x20
[  249.887843]  ? do_syscall_64+0x1b9/0x820
[  249.891915]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  249.897282]  ? syscall_return_slowpath+0x5e0/0x5e0
[  249.902210]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.907060]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.912080]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  249.917102]  ? prepare_exit_to_usermode+0x291/0x3b0
[  249.922125]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.926977]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  249.932361] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  249.932470] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  249.939302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  249.939311] Call Trace:
[  249.945910] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  249.955136]  <IRQ>
[  249.957711] syz-executor4 cpuset=syz4 mems_allowed=0
[  249.968193]  dump_stack+0x244/0x39d
[  249.979041]  ? dump_stack_print_info.cold.1+0x20/0x20
[  249.984259]  warn_alloc.cold.116+0xb7/0x1bd
[  249.988582]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  249.993433]  ? lock_downgrade+0x900/0x900
[  249.997591]  ? trace_hardirqs_off+0xb8/0x310
[  250.002013]  ? trace_hardirqs_off+0xb8/0x310
[  250.006481]  __alloc_pages_slowpath+0x26e8/0x2e10
[  250.011353]  ? warn_alloc+0x120/0x120
[  250.015157]  ? print_usage_bug+0xc0/0xc0
[  250.019221]  ? warn_alloc+0x120/0x120
[  250.023032]  ? warn_alloc+0x120/0x120
[  250.026835]  ? print_usage_bug+0xc0/0xc0
[  250.030914]  ? print_usage_bug+0xc0/0xc0
[  250.034979]  ? __lock_acquire+0x62f/0x4c20
[  250.039226]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.044766]  ? should_fail+0x22d/0xd01
[  250.048658]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.053766]  ? __lock_acquire+0x62f/0x4c20
[  250.058012]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.063119]  ? __lock_acquire+0x62f/0x4c20
[  250.067352]  ? should_fail+0x22d/0xd01
[  250.071239]  ? find_held_lock+0x36/0x1c0
[  250.075320]  ? mark_held_locks+0x130/0x130
[  250.079573]  ? mark_held_locks+0x130/0x130
[  250.083805]  ? zap_class+0x640/0x640
[  250.087519]  ? zap_class+0x640/0x640
[  250.091240]  ? print_usage_bug+0xc0/0xc0
[  250.095302]  ? do_raw_spin_unlock+0xa7/0x330
[  250.099712]  ? zap_class+0x640/0x640
[  250.103438]  ? print_usage_bug+0xc0/0xc0
[  250.107497]  ? wq_watchdog_touch+0x9c/0xfe
[  250.111752]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.117290]  ? check_preemption_disabled+0x48/0x280
[  250.122317]  ? __lock_is_held+0xb5/0x140
[  250.126386]  __alloc_pages_nodemask+0xa80/0xde0
[  250.131055]  ? zap_class+0x640/0x640
[  250.134773]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  250.139801]  ? find_held_lock+0x36/0x1c0
[  250.143874]  ? ____cache_alloc_node+0x1c7/0x1e0
[  250.148555]  ? lock_downgrade+0x900/0x900
[  250.152713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.158254]  cache_grow_begin+0xa5/0x8c0
[  250.162313]  ? do_raw_spin_unlock+0xa7/0x330
[  250.166732]  fallback_alloc+0x204/0x2e0
[  250.170714]  ____cache_alloc_node+0x1c7/0x1e0
[  250.175215]  kmem_cache_alloc_node+0xe3/0x730
[  250.179716]  ? ipv6_get_ifaddr+0x42e/0x620
[  250.183963]  __alloc_skb+0x119/0x770
[  250.187679]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.192960]  ? netdev_alloc_frag+0x1f0/0x1f0
[  250.197371]  ? lock_downgrade+0x900/0x900
[  250.201528]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.207162]  ? refcount_sub_and_test_checked+0x203/0x310
[  250.212616]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  250.218098]  ? addrconf_rs_timer+0x690/0x690
[  250.222530]  ndisc_alloc_skb+0x144/0x340
[  250.226600]  ndisc_send_rs+0x331/0x6e0
[  250.230494]  addrconf_rs_timer+0x314/0x690
[  250.234738]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.238984]  call_timer_fn+0x272/0x920
[  250.242878]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.247139]  ? process_timeout+0x40/0x40
[  250.251215]  ? mark_held_locks+0xc7/0x130
[  250.255370]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.259864]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.264406]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.268644]  ? lockdep_hardirqs_on+0x296/0x5b0
[  250.273237]  ? trace_hardirqs_on+0xbd/0x310
[  250.277562]  ? kasan_check_read+0x11/0x20
[  250.281709]  ? __run_timers+0x7da/0xc70
[  250.285686]  ? trace_hardirqs_off_caller+0x310/0x310
[  250.290795]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.295035]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.299268]  __run_timers+0x7e5/0xc70
[  250.303083]  ? timer_fixup_init+0x70/0x70
[  250.307237]  ? kasan_check_read+0x11/0x20
[  250.311388]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.316663]  ? rcu_softirq_qs+0x20/0x20
[  250.320643]  ? mark_held_locks+0xc7/0x130
[  250.324798]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  250.329557]  ? retint_kernel+0x2d/0x2d
[  250.333446]  ? trace_hardirqs_on_caller+0xc0/0x310
[  250.338418]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  250.343190]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  250.348642]  ? zap_class+0x640/0x640
[  250.352365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.357922]  ? check_preemption_disabled+0x48/0x280
[  250.362954]  ? __lock_is_held+0xb5/0x140
[  250.367026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.372562]  ? check_preemption_disabled+0x48/0x280
[  250.377588]  run_timer_softirq+0x52/0xb0
[  250.381667]  ? rcu_read_lock_sched_held+0x14f/0x180
[  250.386702]  __do_softirq+0x308/0xb7e
[  250.390515]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  250.395019]  ? lock_downgrade+0x900/0x900
[  250.399174]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  250.404290]  ? pvclock_read_flags+0x160/0x160
[  250.408790]  ? lapic_next_event+0x5a/0x90
[  250.412948]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.418491]  ? kvm_clock_read+0x18/0x30
[  250.422468]  ? kvm_sched_clock_read+0x9/0x20
[  250.426887]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.432437]  ? check_preemption_disabled+0x48/0x280
[  250.437463]  irq_exit+0x17f/0x1c0
[  250.440936]  smp_apic_timer_interrupt+0x1cb/0x760
[  250.445791]  ? smp_call_function_single_interrupt+0x650/0x650
[  250.451675]  ? interrupt_entry+0xb5/0xc0
[  250.455740]  ? trace_hardirqs_off_caller+0xbb/0x310
[  250.460766]  ? trace_hardirqs_off_caller+0xbb/0x310
[  250.465802]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.470647]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.475664]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.480685]  ? task_prio+0x50/0x50
[  250.484231]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.489789]  ? check_preemption_disabled+0x48/0x280
[  250.494833]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.499687]  apic_timer_interrupt+0xf/0x20
[  250.503927]  </IRQ>
[  250.506170] RIP: 0010:dump_stack+0x358/0x39d
[  250.510580] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  250.529494] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  250.537206] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  250.544475] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  250.551743] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  250.559018] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  250.566288] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  250.573587]  ? dump_stack+0x34f/0x39d
[  250.577403]  ? dump_stack_print_info.cold.1+0x20/0x20
[  250.582598]  ? mark_held_locks+0x130/0x130
[  250.586835]  ? mark_held_locks+0x130/0x130
[  250.591079]  dump_header+0x27b/0xf72
[  250.594812]  ? pagefault_out_of_memory+0x197/0x197
[  250.599759]  ? __lock_acquire+0x62f/0x4c20
[  250.604007]  ? percpu_ref_get_many+0x240/0x240
[  250.608598]  ? print_usage_bug+0xc0/0xc0
[  250.612667]  ? zap_class+0x640/0x640
[  250.616384]  ? print_usage_bug+0xc0/0xc0
[  250.620448]  ? print_usage_bug+0xc0/0xc0
[  250.624510]  ? zap_class+0x640/0x640
[  250.628234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.633782]  ? find_held_lock+0x36/0x1c0
[  250.637858]  ? mark_held_locks+0xc7/0x130
[  250.642015]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  250.647118]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  250.652236]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  250.656821]  ? trace_hardirqs_on+0xbd/0x310
[  250.661146]  ? kasan_check_read+0x11/0x20
[  250.665292]  ? ___ratelimit+0x3b4/0x672
[  250.669270]  ? trace_hardirqs_off_caller+0x310/0x310
[  250.674376]  ? trace_hardirqs_on+0x310/0x310
[  250.678793]  ? lock_downgrade+0x900/0x900
[  250.682947]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  250.688051]  ? ___ratelimit+0x3b9/0x672
[  250.692033]  ? idr_get_free+0xf70/0xf70
[  250.696017]  ? find_held_lock+0x36/0x1c0
[  250.700090]  oom_kill_process.cold.27+0x10/0x903
[  250.704847]  ? zap_class+0x640/0x640
[  250.708565]  ? check_preemption_disabled+0x48/0x280
[  250.713588]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  250.718527]  ? kasan_check_read+0x11/0x20
[  250.722680]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.727962]  ? oom_evaluate_task+0x540/0x540
[  250.732385]  ? find_held_lock+0x36/0x1c0
[  250.736459]  ? out_of_memory+0x974/0x1430
[  250.740608]  ? lock_downgrade+0x900/0x900
[  250.744756]  ? check_preemption_disabled+0x48/0x280
[  250.750158]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  250.755091]  ? kasan_check_read+0x11/0x20
[  250.759242]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.764518]  ? rcu_softirq_qs+0x20/0x20
[  250.768502]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.774043]  ? oom_evaluate_task+0x302/0x540
[  250.778455]  out_of_memory+0xa84/0x1430
[  250.782447]  ? oom_killer_disable+0x3a0/0x3a0
[  250.786944]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  250.791880]  ? __ww_mutex_check_waiters+0x160/0x160
[  250.796923]  __alloc_pages_slowpath+0x2354/0x2e10
[  250.801797]  ? warn_alloc+0x120/0x120
[  250.805602]  ? mark_held_locks+0x130/0x130
[  250.809848]  ? find_get_entry+0xaae/0x1120
[  250.814091]  ? filemap_map_pages+0x1a20/0x1a20
[  250.818694]  ? zap_class+0x640/0x640
[  250.822420]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.827961]  ? check_preemption_disabled+0x48/0x280
[  250.832984]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.838536]  ? should_fail+0x22d/0xd01
[  250.842429]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.847534]  ? zap_class+0x640/0x640
[  250.851278]  ? __lock_is_held+0xb5/0x140
[  250.855351]  ? mark_held_locks+0x130/0x130
[  250.859591]  ? lock_release+0xa00/0xa00
[  250.863570]  ? perf_trace_sched_process_exec+0x860/0x860
[  250.869029]  ? xa_load+0x2ba/0x460
[  250.872575]  ? lock_downgrade+0x900/0x900
[  250.876733]  ? __might_sleep+0x95/0x190
[  250.880716]  __alloc_pages_nodemask+0xa80/0xde0
[  250.885395]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  250.890414]  ? __page_cache_alloc+0x191/0x5c0
[  250.894923]  ? xa_load+0x2e1/0x460
[  250.898467]  ? xa_clear_mark+0x40/0x40
[  250.902360]  ? zap_class+0x640/0x640
[  250.906088]  ? zap_class+0x640/0x640
[  250.909799]  ? zap_class+0x640/0x640
[  250.913523]  ? __do_page_cache_readahead+0x663/0x810
[  250.918637]  ? find_held_lock+0x36/0x1c0
[  250.922704]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  250.928250]  alloc_pages_current+0x173/0x350
[  250.932678]  __page_cache_alloc+0x38c/0x5c0
[  250.937022]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  250.941953]  ? kasan_check_read+0x11/0x20
[  250.946100]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.951383]  ? generic_perform_write+0x6a0/0x6a0
[  250.956144]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.961685]  ? check_preemption_disabled+0x48/0x280
[  250.966711]  filemap_fault+0x1595/0x25f0
[  250.970785]  ? __lock_page_or_retry+0xa00/0xa00
[  250.975459]  ? mark_held_locks+0x130/0x130
[  250.979701]  ? filemap_map_pages+0xd6b/0x1a20
[  250.984202]  ? lock_downgrade+0x900/0x900
[  250.988356]  ? check_preemption_disabled+0x48/0x280
[  250.993379]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  250.998310]  ? kasan_check_read+0x11/0x20
[  251.002457]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.007734]  ? rcu_softirq_qs+0x20/0x20
[  251.011729]  ? filemap_map_pages+0xd92/0x1a20
[  251.016239]  ? find_get_entries_tag+0x1400/0x1400
[  251.021082]  ? find_held_lock+0x36/0x1c0
[  251.025162]  ? lock_acquire+0x1ed/0x520
[  251.029140]  ? ext4_filemap_fault+0x7a/0xad
[  251.033500]  ? lock_release+0xa00/0xa00
[  251.037476]  ? perf_trace_sched_process_exec+0x860/0x860
[  251.042933]  ? print_usage_bug+0xc0/0xc0
[  251.047002]  ? print_usage_bug+0xc0/0xc0
[  251.051077]  ? down_read+0x8d/0x120
[  251.054704]  ? ext4_filemap_fault+0x7a/0xad
[  251.059030]  ? __down_interruptible+0x700/0x700
[  251.063711]  ext4_filemap_fault+0x82/0xad
[  251.067862]  __do_fault+0x100/0x6b0
[  251.071541]  ? find_held_lock+0x36/0x1c0
[  251.075606]  ? pmd_devmap_trans_unstable+0x220/0x220
[  251.080712]  ? mark_held_locks+0x130/0x130
[  251.084961]  ? mark_held_locks+0x130/0x130
[  251.089208]  ? kasan_check_read+0x11/0x20
[  251.093359]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.098913]  __handle_mm_fault+0x3ea0/0x5be0
[  251.103321]  ? perf_trace_lock+0x7a0/0x7a0
[  251.107593]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  251.112444]  ? __switch_to_asm+0x34/0x70
[  251.116505]  ? __switch_to_asm+0x34/0x70
[  251.120582]  ? zap_class+0x640/0x640
[  251.124294]  ? zap_class+0x640/0x640
[  251.128017]  ? __x64_sys_futex+0x53e/0x6a0
[  251.132289]  ? find_held_lock+0x36/0x1c0
[  251.136364]  ? handle_mm_fault+0x42a/0xc70
[  251.140601]  ? lock_downgrade+0x900/0x900
[  251.144781]  ? check_preemption_disabled+0x48/0x280
[  251.149801]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.154731]  ? kasan_check_read+0x11/0x20
[  251.158879]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.164191]  ? rcu_softirq_qs+0x20/0x20
[  251.168170]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.173281]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.178831]  ? check_preemption_disabled+0x48/0x280
[  251.183867]  handle_mm_fault+0x54f/0xc70
[  251.187950]  ? __handle_mm_fault+0x5be0/0x5be0
[  251.192541]  ? find_vma+0x34/0x190
[  251.196092]  __do_page_fault+0x5e8/0xe60
[  251.200159]  ? trace_hardirqs_off+0xb8/0x310
[  251.204577]  do_page_fault+0xf2/0x7e0
[  251.208385]  ? vmalloc_sync_all+0x30/0x30
[  251.212537]  ? error_entry+0x70/0xd0
[  251.216264]  ? trace_hardirqs_off_caller+0xbb/0x310
[  251.221292]  ? trace_hardirqs_on_caller+0xc0/0x310
[  251.226224]  ? syscall_return_slowpath+0x5e0/0x5e0
[  251.231155]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.236005]  ? trace_hardirqs_on_caller+0x310/0x310
[  251.241036]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  251.246493]  ? prepare_exit_to_usermode+0x291/0x3b0
[  251.251513]  ? page_fault+0x8/0x30
[  251.255058]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.259912]  ? page_fault+0x8/0x30
[  251.263454]  page_fault+0x1e/0x30
[  251.266916] RIP: 0033:0x44b69a
[  251.270130] Code: Bad RIP value.
[  251.273490] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  251.278850] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  251.286116] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  251.293382] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  251.300650] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  251.307923] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  251.315256] warn_alloc_show_mem: 1 callbacks suppressed
[  251.315269] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  251.315271] Mem-Info:
[  251.315304] active_anon:47227 inactive_anon:190 isolated_anon:0
[  251.315304]  active_file:11 inactive_file:14 isolated_file:0
[  251.315304]  unevictable:0 dirty:0 writeback:0 unstable:0
[  251.315304]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  251.315304]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  251.315304]  free:13756 free_pcp:235 free_cma:0
[  251.320657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  251.327853] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  251.330259] Call Trace:
[  251.363132] 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
[  251.372486]  <IRQ>
[  251.399985] lowmem_reserve[]: 0 2818 6321 6321
[  251.402588]  dump_stack+0x244/0x39d
[  251.428682] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  251.430850]  ? dump_stack_print_info.cold.1+0x20/0x20
[  251.435389] lowmem_reserve[]: 0 0 3503 3503
[  251.439022]  warn_alloc.cold.116+0xb7/0x1bd
[  251.466321] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  251.471528]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  251.475825] lowmem_reserve[]: 0 0 0 0
[  251.480142]  ? lock_downgrade+0x900/0x900
[  251.509011] 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
[  251.513873]  ? trace_hardirqs_off+0xb8/0x310
[  251.517641] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  251.521788]  ? trace_hardirqs_off+0xb8/0x310
[  251.535300] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  251.539715]  __alloc_pages_slowpath+0x26e8/0x2e10
[  251.554950] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  251.559375]  ? warn_alloc+0x120/0x120
[  251.574422] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  251.579257]  ? print_usage_bug+0xc0/0xc0
[  251.588084] 269 total pagecache pages
[  251.591884]  ? warn_alloc+0x120/0x120
[  251.600457] 0 pages in swap cache
[  251.604514]  ? warn_alloc+0x120/0x120
[  251.608291] Swap cache stats: add 0, delete 0, find 0/0
[  251.612086]  ? print_usage_bug+0xc0/0xc0
[  251.615514] Free swap  = 0kB
[  251.619311]  ? kvm_clock_read+0x18/0x30
[  251.624651] Total swap = 0kB
[  251.628713]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  251.631713] 1965979 pages RAM
[  251.635681]  ? print_usage_bug+0xc0/0xc0
[  251.638673] 0 pages HighMem/MovableOnly
[  251.643682]  ? __lock_acquire+0x62f/0x4c20
[  251.646773] 342853 pages reserved
[  251.650853]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.654805] 0 pages cma reserved
[  251.659034]  ? should_fail+0x22d/0xd01
[  251.662577] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  251.667994]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.668016]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  251.671428] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  251.675241]  ? __lock_acquire+0x62f/0x4c20
[  251.681706] syz-fuzzer cpuset=/ mems_allowed=0
[  251.686978]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  251.716152]  ? __lock_acquire+0x62f/0x4c20
[  251.720391]  ? should_fail+0x22d/0xd01
[  251.724279]  ? rcu_irq_exit+0x1a2/0x390
[  251.728268]  ? mark_held_locks+0x130/0x130
[  251.732517]  ? mark_held_locks+0x130/0x130
[  251.736759]  ? mark_held_locks+0xc7/0x130
[  251.740924]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  251.745953]  ? zap_class+0x640/0x640
[  251.749685]  ? print_usage_bug+0xc0/0xc0
[  251.753752]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.759299]  ? check_preemption_disabled+0x48/0x280
[  251.764325]  ? __lock_is_held+0xb5/0x140
[  251.768395]  __alloc_pages_nodemask+0xa80/0xde0
[  251.773066]  ? zap_class+0x640/0x640
[  251.776808]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  251.781861]  ? find_held_lock+0x36/0x1c0
[  251.785942]  ? ____cache_alloc_node+0x1c7/0x1e0
[  251.790629]  ? lock_downgrade+0x900/0x900
[  251.794792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.800336]  cache_grow_begin+0xa5/0x8c0
[  251.804402]  ? do_raw_spin_unlock+0xa7/0x330
[  251.808831]  fallback_alloc+0x204/0x2e0
[  251.812824]  ____cache_alloc_node+0x1c7/0x1e0
[  251.817384]  kmem_cache_alloc_node+0xe3/0x730
[  251.821895]  ? ipv6_get_ifaddr+0x42e/0x620
[  251.826151]  __alloc_skb+0x119/0x770
[  251.829884]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.835174]  ? netdev_alloc_frag+0x1f0/0x1f0
[  251.839586]  ? lock_downgrade+0x900/0x900
[  251.843744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.849290]  ? refcount_sub_and_test_checked+0x203/0x310
[  251.854747]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  251.860201]  ? addrconf_rs_timer+0x690/0x690
[  251.864623]  ndisc_alloc_skb+0x144/0x340
[  251.868688]  ndisc_send_rs+0x331/0x6e0
[  251.872581]  addrconf_rs_timer+0x314/0x690
[  251.876826]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.881567]  call_timer_fn+0x272/0x920
[  251.885459]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.889696]  ? process_timeout+0x40/0x40
[  251.893765]  ? __run_timers+0x7da/0xc70
[  251.897754]  ? _raw_spin_unlock_irq+0x27/0x80
[  251.902270]  ? _raw_spin_unlock_irq+0x27/0x80
[  251.906769]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.911010]  ? lockdep_hardirqs_on+0x296/0x5b0
[  251.915598]  ? trace_hardirqs_on+0xbd/0x310
[  251.919933]  ? kasan_check_read+0x11/0x20
[  251.924091]  ? __run_timers+0x7da/0xc70
[  251.928070]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.933181]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.937422]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  251.941655]  __run_timers+0x7e5/0xc70
[  251.945465]  ? timer_fixup_init+0x70/0x70
[  251.949622]  ? lock_acquire+0x1ed/0x520
[  251.953606]  ? zap_class+0x640/0x640
[  251.957321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.962871]  ? kasan_check_read+0x11/0x20
[  251.967028]  ? do_raw_spin_lock+0x14f/0x350
[  251.971365]  ? find_held_lock+0x36/0x1c0
[  251.975433]  ? zap_class+0x640/0x640
[  251.979152]  ? pvclock_read_flags+0x160/0x160
[  251.983656]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.989198]  ? check_preemption_disabled+0x48/0x280
[  251.994239]  ? __lock_is_held+0xb5/0x140
[  251.998303]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.003841]  ? check_preemption_disabled+0x48/0x280
[  252.008864]  run_timer_softirq+0x52/0xb0
[  252.012948]  ? rcu_read_lock_sched_held+0x14f/0x180
[  252.017968]  __do_softirq+0x308/0xb7e
[  252.021775]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  252.026270]  ? lock_downgrade+0x900/0x900
[  252.030425]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  252.035539]  ? pvclock_read_flags+0x160/0x160
[  252.040037]  ? lapic_next_event+0x5a/0x90
[  252.044196]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.049739]  ? kvm_clock_read+0x18/0x30
[  252.053712]  ? kvm_sched_clock_read+0x9/0x20
[  252.058123]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.063662]  ? check_preemption_disabled+0x48/0x280
[  252.068690]  irq_exit+0x17f/0x1c0
[  252.072152]  smp_apic_timer_interrupt+0x1cb/0x760
[  252.076996]  ? smp_call_function_single_interrupt+0x159/0x650
[  252.082890]  ? smp_call_function_single_interrupt+0x650/0x650
[  252.088784]  ? interrupt_entry+0xb5/0xc0
[  252.092849]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.097866]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.102895]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.107750]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.112765]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.117795]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.122647]  apic_timer_interrupt+0xf/0x20
[  252.126875]  </IRQ>
[  252.129140] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  252.134107] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  252.153007] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  252.160717] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  252.168003] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  252.175285] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  252.182555] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  252.189822] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  252.197138]  skb_clone+0x1bb/0x500
[  252.200681]  ? skb_split+0x11e0/0x11e0
[  252.204572]  ? check_preemption_disabled+0x48/0x280
[  252.209597]  ? __this_cpu_preempt_check+0x1c/0x20
[  252.214442]  ? __bpf_redirect+0x54b/0xb20
[  252.218598]  bpf_clone_redirect+0xb9/0x490
[  252.222842]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  252.227864]  ? __sched_text_start+0x8/0x8
[  252.232021]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  252.236791]  ? find_held_lock+0x36/0x1c0
[  252.240861]  ? lock_acquire+0x1ed/0x520
[  252.244841]  ? bpf_test_run+0x3cb/0x780
[  252.248832]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.254386]  ? check_preemption_disabled+0x48/0x280
[  252.259412]  ? kasan_check_read+0x11/0x20
[  252.263562]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.268838]  ? rcu_softirq_qs+0x20/0x20
[  252.272815]  ? preempt_schedule+0x4d/0x60
[  252.276980]  ? ___preempt_schedule+0x16/0x18
[  252.281397]  ? bpf_test_run+0x25d/0x780
[  252.285389]  ? netlink_diag_dump+0x2a0/0x2a0
[  252.289807]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  252.294578]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  252.299346]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  252.304190]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  252.309732]  ? fput+0x130/0x1a0
[  252.313015]  ? __bpf_prog_get+0x9b/0x290
[  252.317082]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  252.321927]  ? bpf_prog_test_run+0x130/0x1a0
[  252.326342]  ? __x64_sys_bpf+0x3d8/0x520
[  252.330415]  ? bpf_prog_get+0x20/0x20
[  252.334242]  ? do_syscall_64+0x1b9/0x820
[  252.338303]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  252.343670]  ? syscall_return_slowpath+0x5e0/0x5e0
[  252.348601]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.353446]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.358465]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  252.363514]  ? prepare_exit_to_usermode+0x291/0x3b0
[  252.368543]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.373401]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  252.378789] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  252.378889] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  252.385727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  252.385733] Call Trace:
[  252.385741]  <IRQ>
[  252.385759]  dump_stack+0x244/0x39d
[  252.385780]  ? dump_stack_print_info.cold.1+0x20/0x20
[  252.392350] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  252.401631]  warn_alloc.cold.116+0xb7/0x1bd
[  252.404183] syz-executor4 cpuset=syz4 mems_allowed=0
[  252.406329]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  252.439838]  ? lock_downgrade+0x900/0x900
[  252.444006]  ? trace_hardirqs_off+0xb8/0x310
[  252.448421]  ? trace_hardirqs_off+0xb8/0x310
[  252.452839]  __alloc_pages_slowpath+0x26e8/0x2e10
[  252.457721]  ? warn_alloc+0x120/0x120
[  252.461525]  ? print_usage_bug+0xc0/0xc0
[  252.465590]  ? warn_alloc+0x120/0x120
[  252.469395]  ? zap_class+0x640/0x640
[  252.473114]  ? warn_alloc+0x120/0x120
[  252.476927]  ? print_usage_bug+0xc0/0xc0
[  252.480995]  ? print_usage_bug+0xc0/0xc0
[  252.485072]  ? __lock_acquire+0x62f/0x4c20
[  252.489317]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.494858]  ? should_fail+0x22d/0xd01
[  252.498752]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.503859]  ? __lock_acquire+0x62f/0x4c20
[  252.508099]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.513203]  ? __lock_acquire+0x62f/0x4c20
[  252.517438]  ? should_fail+0x22d/0xd01
[  252.521327]  ? find_held_lock+0x36/0x1c0
[  252.525397]  ? mark_held_locks+0x130/0x130
[  252.529636]  ? mark_held_locks+0x130/0x130
[  252.533870]  ? zap_class+0x640/0x640
[  252.537598]  ? zap_class+0x640/0x640
[  252.541315]  ? print_usage_bug+0xc0/0xc0
[  252.545373]  ? do_raw_spin_unlock+0xa7/0x330
[  252.549812]  ? zap_class+0x640/0x640
[  252.553527]  ? print_usage_bug+0xc0/0xc0
[  252.557593]  ? wq_watchdog_touch+0x9c/0xfe
[  252.561833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.567372]  ? check_preemption_disabled+0x48/0x280
[  252.572398]  ? __lock_is_held+0xb5/0x140
[  252.576468]  __alloc_pages_nodemask+0xa80/0xde0
[  252.581138]  ? zap_class+0x640/0x640
[  252.584859]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  252.589889]  ? find_held_lock+0x36/0x1c0
[  252.593972]  ? ____cache_alloc_node+0x1c7/0x1e0
[  252.598645]  ? lock_downgrade+0x900/0x900
[  252.602817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.608359]  cache_grow_begin+0xa5/0x8c0
[  252.612424]  ? do_raw_spin_unlock+0xa7/0x330
[  252.616842]  fallback_alloc+0x204/0x2e0
[  252.620826]  ____cache_alloc_node+0x1c7/0x1e0
[  252.625341]  kmem_cache_alloc_node+0xe3/0x730
[  252.629882]  ? ipv6_get_ifaddr+0x42e/0x620
[  252.634149]  __alloc_skb+0x119/0x770
[  252.637877]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.643166]  ? netdev_alloc_frag+0x1f0/0x1f0
[  252.647576]  ? lock_downgrade+0x900/0x900
[  252.651750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.657292]  ? refcount_sub_and_test_checked+0x203/0x310
[  252.662745]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  252.668196]  ? addrconf_rs_timer+0x690/0x690
[  252.672617]  ndisc_alloc_skb+0x144/0x340
[  252.676683]  ndisc_send_rs+0x331/0x6e0
[  252.680577]  addrconf_rs_timer+0x314/0x690
[  252.684822]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.689069]  call_timer_fn+0x272/0x920
[  252.692958]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.697192]  ? process_timeout+0x40/0x40
[  252.701268]  ? mark_held_locks+0xc7/0x130
[  252.705419]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.709919]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.714414]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.718649]  ? lockdep_hardirqs_on+0x296/0x5b0
[  252.723240]  ? trace_hardirqs_on+0xbd/0x310
[  252.727565]  ? kasan_check_read+0x11/0x20
[  252.731711]  ? __run_timers+0x7da/0xc70
[  252.735697]  ? trace_hardirqs_off_caller+0x310/0x310
[  252.740805]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.745048]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.749283]  __run_timers+0x7e5/0xc70
[  252.753464]  ? timer_fixup_init+0x70/0x70
[  252.757631]  ? kasan_check_read+0x11/0x20
[  252.761795]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.767076]  ? rcu_softirq_qs+0x20/0x20
[  252.771061]  ? mark_held_locks+0xc7/0x130
[  252.775220]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  252.779980]  ? retint_kernel+0x2d/0x2d
[  252.783873]  ? trace_hardirqs_on_caller+0xc0/0x310
[  252.788815]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  252.793573]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  252.799029]  ? zap_class+0x640/0x640
[  252.802751]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.808299]  ? check_preemption_disabled+0x48/0x280
[  252.813328]  ? __lock_is_held+0xb5/0x140
[  252.817411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.822951]  ? check_preemption_disabled+0x48/0x280
[  252.827973]  run_timer_softirq+0x52/0xb0
[  252.832042]  ? rcu_read_lock_sched_held+0x14f/0x180
[  252.837063]  __do_softirq+0x308/0xb7e
[  252.840872]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  252.845374]  ? lock_downgrade+0x900/0x900
[  252.849529]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  252.854671]  ? pvclock_read_flags+0x160/0x160
[  252.859168]  ? lapic_next_event+0x5a/0x90
[  252.863320]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.868865]  ? kvm_clock_read+0x18/0x30
[  252.872863]  ? kvm_sched_clock_read+0x9/0x20
[  252.877274]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.882827]  ? check_preemption_disabled+0x48/0x280
[  252.887866]  irq_exit+0x17f/0x1c0
[  252.891326]  smp_apic_timer_interrupt+0x1cb/0x760
[  252.896170]  ? smp_call_function_single_interrupt+0x650/0x650
[  252.902053]  ? interrupt_entry+0xb5/0xc0
[  252.906120]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.911138]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.916158]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.921010]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.926042]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.931061]  ? task_prio+0x50/0x50
[  252.934602]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.940156]  ? check_preemption_disabled+0x48/0x280
[  252.945179]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.950032]  apic_timer_interrupt+0xf/0x20
[  252.954263]  </IRQ>
[  252.956505] RIP: 0010:dump_stack+0x358/0x39d
[  252.960924] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  252.979849] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  252.987557] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  252.994827] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  253.002099] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  253.009435] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  253.016717] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  253.024021]  ? dump_stack+0x34f/0x39d
[  253.027837]  ? dump_stack_print_info.cold.1+0x20/0x20
[  253.033040]  ? mark_held_locks+0x130/0x130
[  253.037274]  ? mark_held_locks+0x130/0x130
[  253.041516]  dump_header+0x27b/0xf72
[  253.045250]  ? pagefault_out_of_memory+0x197/0x197
[  253.050187]  ? __lock_acquire+0x62f/0x4c20
[  253.054424]  ? percpu_ref_get_many+0x240/0x240
[  253.059015]  ? print_usage_bug+0xc0/0xc0
[  253.063084]  ? zap_class+0x640/0x640
[  253.066798]  ? print_usage_bug+0xc0/0xc0
[  253.070860]  ? print_usage_bug+0xc0/0xc0
[  253.074931]  ? zap_class+0x640/0x640
[  253.078651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.084195]  ? find_held_lock+0x36/0x1c0
[  253.088266]  ? mark_held_locks+0xc7/0x130
[  253.092417]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  253.097516]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  253.102624]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  253.107216]  ? trace_hardirqs_on+0xbd/0x310
[  253.111558]  ? kasan_check_read+0x11/0x20
[  253.115709]  ? ___ratelimit+0x3b4/0x672
[  253.119687]  ? trace_hardirqs_off_caller+0x310/0x310
[  253.124794]  ? trace_hardirqs_on+0x310/0x310
[  253.129205]  ? lock_downgrade+0x900/0x900
[  253.133363]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  253.138480]  ? ___ratelimit+0x3b9/0x672
[  253.142470]  ? idr_get_free+0xf70/0xf70
[  253.146444]  ? find_held_lock+0x36/0x1c0
[  253.150514]  oom_kill_process.cold.27+0x10/0x903
[  253.155276]  ? zap_class+0x640/0x640
[  253.159013]  ? check_preemption_disabled+0x48/0x280
[  253.164043]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.168978]  ? kasan_check_read+0x11/0x20
[  253.173132]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.178415]  ? oom_evaluate_task+0x540/0x540
[  253.182830]  ? find_held_lock+0x36/0x1c0
[  253.186915]  ? out_of_memory+0x974/0x1430
[  253.191072]  ? lock_downgrade+0x900/0x900
[  253.195224]  ? check_preemption_disabled+0x48/0x280
[  253.200246]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.205181]  ? kasan_check_read+0x11/0x20
[  253.209327]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.214603]  ? rcu_softirq_qs+0x20/0x20
[  253.218586]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.224125]  ? oom_evaluate_task+0x302/0x540
[  253.228537]  out_of_memory+0xa84/0x1430
[  253.232524]  ? oom_killer_disable+0x3a0/0x3a0
[  253.237031]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  253.241973]  ? __ww_mutex_check_waiters+0x160/0x160
[  253.247011]  __alloc_pages_slowpath+0x2354/0x2e10
[  253.251906]  ? warn_alloc+0x120/0x120
[  253.255711]  ? mark_held_locks+0x130/0x130
[  253.259953]  ? find_get_entry+0xaae/0x1120
[  253.264197]  ? filemap_map_pages+0x1a20/0x1a20
[  253.268788]  ? zap_class+0x640/0x640
[  253.272512]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.278056]  ? check_preemption_disabled+0x48/0x280
[  253.283072]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.288613]  ? should_fail+0x22d/0xd01
[  253.292504]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  253.297610]  ? zap_class+0x640/0x640
[  253.301347]  ? __lock_is_held+0xb5/0x140
[  253.305422]  ? mark_held_locks+0x130/0x130
[  253.309663]  ? lock_release+0xa00/0xa00
[  253.313639]  ? perf_trace_sched_process_exec+0x860/0x860
[  253.319097]  ? xa_load+0x2ba/0x460
[  253.322639]  ? lock_downgrade+0x900/0x900
[  253.326801]  ? __might_sleep+0x95/0x190
[  253.330782]  __alloc_pages_nodemask+0xa80/0xde0
[  253.335460]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  253.340483]  ? __page_cache_alloc+0x191/0x5c0
[  253.344976]  ? xa_load+0x2e1/0x460
[  253.348521]  ? xa_clear_mark+0x40/0x40
[  253.352415]  ? zap_class+0x640/0x640
[  253.356140]  ? zap_class+0x640/0x640
[  253.359852]  ? zap_class+0x640/0x640
[  253.363568]  ? __do_page_cache_readahead+0x663/0x810
[  253.368678]  ? find_held_lock+0x36/0x1c0
[  253.372744]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  253.378292]  alloc_pages_current+0x173/0x350
[  253.382708]  __page_cache_alloc+0x38c/0x5c0
[  253.387034]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.391965]  ? kasan_check_read+0x11/0x20
[  253.396114]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.401393]  ? generic_perform_write+0x6a0/0x6a0
[  253.406154]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.411707]  ? check_preemption_disabled+0x48/0x280
[  253.416731]  filemap_fault+0x1595/0x25f0
[  253.420805]  ? __lock_page_or_retry+0xa00/0xa00
[  253.425482]  ? mark_held_locks+0x130/0x130
[  253.429729]  ? filemap_map_pages+0xd6b/0x1a20
[  253.434227]  ? lock_downgrade+0x900/0x900
[  253.438375]  ? check_preemption_disabled+0x48/0x280
[  253.443404]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.448345]  ? kasan_check_read+0x11/0x20
[  253.452512]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.457790]  ? rcu_softirq_qs+0x20/0x20
[  253.461788]  ? filemap_map_pages+0xd92/0x1a20
[  253.466306]  ? find_get_entries_tag+0x1400/0x1400
[  253.471146]  ? find_held_lock+0x36/0x1c0
[  253.475226]  ? lock_acquire+0x1ed/0x520
[  253.479199]  ? ext4_filemap_fault+0x7a/0xad
[  253.483532]  ? lock_release+0xa00/0xa00
[  253.487509]  ? perf_trace_sched_process_exec+0x860/0x860
[  253.492973]  ? print_usage_bug+0xc0/0xc0
[  253.497044]  ? print_usage_bug+0xc0/0xc0
[  253.501381]  ? down_read+0x8d/0x120
[  253.505015]  ? ext4_filemap_fault+0x7a/0xad
[  253.509342]  ? __down_interruptible+0x700/0x700
[  253.514028]  ext4_filemap_fault+0x82/0xad
[  253.518186]  __do_fault+0x100/0x6b0
[  253.521822]  ? find_held_lock+0x36/0x1c0
[  253.525909]  ? pmd_devmap_trans_unstable+0x220/0x220
[  253.531020]  ? mark_held_locks+0x130/0x130
[  253.535267]  ? mark_held_locks+0x130/0x130
[  253.539514]  ? kasan_check_read+0x11/0x20
[  253.543665]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.549212]  __handle_mm_fault+0x3ea0/0x5be0
[  253.553622]  ? perf_trace_lock+0x7a0/0x7a0
[  253.557879]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  253.562740]  ? __switch_to_asm+0x34/0x70
[  253.566799]  ? __switch_to_asm+0x34/0x70
[  253.570879]  ? zap_class+0x640/0x640
[  253.574600]  ? zap_class+0x640/0x640
[  253.578324]  ? __x64_sys_futex+0x53e/0x6a0
[  253.582562]  ? find_held_lock+0x36/0x1c0
[  253.586639]  ? handle_mm_fault+0x42a/0xc70
[  253.590880]  ? lock_downgrade+0x900/0x900
[  253.595043]  ? check_preemption_disabled+0x48/0x280
[  253.600066]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.604997]  ? kasan_check_read+0x11/0x20
[  253.609150]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.614431]  ? rcu_softirq_qs+0x20/0x20
[  253.618408]  ? trace_hardirqs_off_caller+0x310/0x310
[  253.623513]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.629054]  ? check_preemption_disabled+0x48/0x280
[  253.634094]  handle_mm_fault+0x54f/0xc70
[  253.638161]  ? __handle_mm_fault+0x5be0/0x5be0
[  253.642748]  ? find_vma+0x34/0x190
[  253.646295]  __do_page_fault+0x5e8/0xe60
[  253.650357]  ? trace_hardirqs_off+0xb8/0x310
[  253.654775]  do_page_fault+0xf2/0x7e0
[  253.658579]  ? vmalloc_sync_all+0x30/0x30
[  253.662742]  ? error_entry+0x70/0xd0
[  253.666458]  ? trace_hardirqs_off_caller+0xbb/0x310
[  253.671476]  ? trace_hardirqs_on_caller+0xc0/0x310
[  253.676410]  ? syscall_return_slowpath+0x5e0/0x5e0
[  253.681341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.686187]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.691217]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  253.696689]  ? prepare_exit_to_usermode+0x291/0x3b0
[  253.701704]  ? page_fault+0x8/0x30
[  253.705251]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.710097]  ? page_fault+0x8/0x30
[  253.713637]  page_fault+0x1e/0x30
[  253.717091] RIP: 0033:0x44b69a
[  253.720300] Code: Bad RIP value.
[  253.723661] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  253.729023] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  253.736291] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  253.743559] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  253.750827] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  253.758105] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  253.765428] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  253.765434] warn_alloc_show_mem: 1 callbacks suppressed
[  253.765442] Mem-Info:
[  253.772638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  253.778014] active_anon:47227 inactive_anon:190 isolated_anon:0
[  253.778014]  active_file:11 inactive_file:14 isolated_file:0
[  253.778014]  unevictable:0 dirty:0 writeback:0 unstable:0
[  253.778014]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  253.778014]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  253.778014]  free:13756 free_pcp:235 free_cma:0
[  253.780394] Call Trace:
[  253.789800] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  253.822649]  <IRQ>
[  253.825220] 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
[  253.852823]  dump_stack+0x244/0x39d
[  253.854945] lowmem_reserve[]: 0 2818 6321 6321
[  253.881572]  ? dump_stack_print_info.cold.1+0x20/0x20
[  253.885176] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  253.889767]  warn_alloc.cold.116+0xb7/0x1bd
[  253.894931] lowmem_reserve[]: 0 0 3503 3503
[  253.922259]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  253.926554] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  253.930873]  ? lock_downgrade+0x900/0x900
[  253.935685] lowmem_reserve[]: 0 0 0 0
[  253.964583]  ? trace_hardirqs_off+0xb8/0x310
[  253.968706] 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
[  253.972509]  ? trace_hardirqs_off+0xb8/0x310
[  253.976909] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  253.990432]  __alloc_pages_slowpath+0x26e8/0x2e10
[  253.994823] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  254.010105]  ? warn_alloc+0x120/0x120
[  254.014916] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  254.029997]  ? print_usage_bug+0xc0/0xc0
[  254.033780] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  254.042621]  ? warn_alloc+0x120/0x120
[  254.046658] 269 total pagecache pages
[  254.055228]  ? warn_alloc+0x120/0x120
[  254.059017] 0 pages in swap cache
[  254.062799]  ? print_usage_bug+0xc0/0xc0
[  254.066575] Swap cache stats: add 0, delete 0, find 0/0
[  254.070017]  ? kvm_clock_read+0x18/0x30
[  254.070036]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  254.074076] Free swap  = 0kB
[  254.079451]  ? print_usage_bug+0xc0/0xc0
[  254.083398] Total swap = 0kB
[  254.088405]  ? __lock_acquire+0x62f/0x4c20
[  254.091399] 1965979 pages RAM
[  254.095460]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.098509] 0 pages HighMem/MovableOnly
[  254.102738]  ? should_fail+0x22d/0xd01
[  254.105819] 342853 pages reserved
[  254.111347]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.115311] 0 pages cma reserved
[  254.119191]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.122710] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  254.127912]  ? __lock_acquire+0x62f/0x4c20
[  254.131316] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  254.136347]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.142839] syz-fuzzer cpuset=/ mems_allowed=0
[  254.147079]  ? __lock_acquire+0x62f/0x4c20
[  254.147095]  ? should_fail+0x22d/0xd01
[  254.175081]  ? rcu_irq_exit+0x1a2/0x390
[  254.179073]  ? mark_held_locks+0x130/0x130
[  254.183314]  ? mark_held_locks+0x130/0x130
[  254.187558]  ? mark_held_locks+0xc7/0x130
[  254.191708]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  254.196730]  ? zap_class+0x640/0x640
[  254.200444]  ? print_usage_bug+0xc0/0xc0
[  254.204517]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.210080]  ? check_preemption_disabled+0x48/0x280
[  254.215112]  ? __lock_is_held+0xb5/0x140
[  254.219186]  __alloc_pages_nodemask+0xa80/0xde0
[  254.223862]  ? zap_class+0x640/0x640
[  254.227581]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  254.232624]  ? find_held_lock+0x36/0x1c0
[  254.236698]  ? ____cache_alloc_node+0x1c7/0x1e0
[  254.241370]  ? lock_downgrade+0x900/0x900
[  254.245535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.251082]  cache_grow_begin+0xa5/0x8c0
[  254.255158]  ? do_raw_spin_unlock+0xa7/0x330
[  254.259577]  fallback_alloc+0x204/0x2e0
[  254.263571]  ____cache_alloc_node+0x1c7/0x1e0
[  254.268077]  kmem_cache_alloc_node+0xe3/0x730
[  254.272578]  ? ipv6_get_ifaddr+0x42e/0x620
[  254.276834]  __alloc_skb+0x119/0x770
[  254.280549]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.285831]  ? netdev_alloc_frag+0x1f0/0x1f0
[  254.290249]  ? lock_downgrade+0x900/0x900
[  254.294596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.300149]  ? refcount_sub_and_test_checked+0x203/0x310
[  254.305606]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  254.311063]  ? addrconf_rs_timer+0x690/0x690
[  254.315489]  ndisc_alloc_skb+0x144/0x340
[  254.319563]  ndisc_send_rs+0x331/0x6e0
[  254.323456]  addrconf_rs_timer+0x314/0x690
[  254.327695]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.331952]  call_timer_fn+0x272/0x920
[  254.335838]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.340078]  ? process_timeout+0x40/0x40
[  254.344148]  ? __run_timers+0x7da/0xc70
[  254.348125]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.352622]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.357118]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.361354]  ? lockdep_hardirqs_on+0x296/0x5b0
[  254.365942]  ? trace_hardirqs_on+0xbd/0x310
[  254.370276]  ? kasan_check_read+0x11/0x20
[  254.374427]  ? __run_timers+0x7da/0xc70
[  254.378403]  ? trace_hardirqs_off_caller+0x310/0x310
[  254.383518]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.387758]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.391991]  __run_timers+0x7e5/0xc70
[  254.395803]  ? timer_fixup_init+0x70/0x70
[  254.399959]  ? lock_acquire+0x1ed/0x520
[  254.403949]  ? zap_class+0x640/0x640
[  254.407678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.413230]  ? kasan_check_read+0x11/0x20
[  254.417375]  ? do_raw_spin_lock+0x14f/0x350
[  254.421704]  ? find_held_lock+0x36/0x1c0
[  254.425770]  ? zap_class+0x640/0x640
[  254.429487]  ? pvclock_read_flags+0x160/0x160
[  254.433992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.439537]  ? check_preemption_disabled+0x48/0x280
[  254.444569]  ? __lock_is_held+0xb5/0x140
[  254.448631]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.454171]  ? check_preemption_disabled+0x48/0x280
[  254.459194]  run_timer_softirq+0x52/0xb0
[  254.463258]  ? rcu_read_lock_sched_held+0x14f/0x180
[  254.468281]  __do_softirq+0x308/0xb7e
[  254.472087]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  254.476587]  ? lock_downgrade+0x900/0x900
[  254.480740]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  254.485857]  ? pvclock_read_flags+0x160/0x160
[  254.490358]  ? lapic_next_event+0x5a/0x90
[  254.494514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.500059]  ? kvm_clock_read+0x18/0x30
[  254.504037]  ? kvm_sched_clock_read+0x9/0x20
[  254.508446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.513993]  ? check_preemption_disabled+0x48/0x280
[  254.519454]  irq_exit+0x17f/0x1c0
[  254.522929]  smp_apic_timer_interrupt+0x1cb/0x760
[  254.527785]  ? smp_call_function_single_interrupt+0x159/0x650
[  254.533674]  ? smp_call_function_single_interrupt+0x650/0x650
[  254.539600]  ? interrupt_entry+0xb5/0xc0
[  254.543678]  ? trace_hardirqs_off_caller+0xbb/0x310
[  254.548696]  ? trace_hardirqs_off_caller+0xbb/0x310
[  254.553729]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.558571]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.563590]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.568617]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.573470]  apic_timer_interrupt+0xf/0x20
[  254.577701]  </IRQ>
[  254.579944] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  254.584874] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  254.603804] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  254.611515] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  254.618782] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  254.626051] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  254.633320] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  254.640586] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  254.647909]  skb_clone+0x1bb/0x500
[  254.651457]  ? skb_split+0x11e0/0x11e0
[  254.655347]  ? check_preemption_disabled+0x48/0x280
[  254.660717]  ? __this_cpu_preempt_check+0x1c/0x20
[  254.665561]  ? __bpf_redirect+0x54b/0xb20
[  254.669722]  bpf_clone_redirect+0xb9/0x490
[  254.673970]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  254.678997]  ? __sched_text_start+0x8/0x8
[  254.683153]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  254.687929]  ? find_held_lock+0x36/0x1c0
[  254.692003]  ? lock_acquire+0x1ed/0x520
[  254.695980]  ? bpf_test_run+0x3cb/0x780
[  254.699957]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.705496]  ? check_preemption_disabled+0x48/0x280
[  254.710531]  ? kasan_check_read+0x11/0x20
[  254.714683]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.719961]  ? rcu_softirq_qs+0x20/0x20
[  254.723942]  ? preempt_schedule+0x4d/0x60
[  254.728092]  ? ___preempt_schedule+0x16/0x18
[  254.732525]  ? bpf_test_run+0x25d/0x780
[  254.736529]  ? netlink_diag_dump+0x2a0/0x2a0
[  254.741207]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  254.745966]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  254.750737]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  254.755601]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  254.761140]  ? fput+0x130/0x1a0
[  254.764436]  ? __bpf_prog_get+0x9b/0x290
[  254.768518]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  254.773364]  ? bpf_prog_test_run+0x130/0x1a0
[  254.777778]  ? __x64_sys_bpf+0x3d8/0x520
[  254.781839]  ? bpf_prog_get+0x20/0x20
[  254.785660]  ? do_syscall_64+0x1b9/0x820
[  254.789750]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  254.795116]  ? syscall_return_slowpath+0x5e0/0x5e0
[  254.800044]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.804890]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.809922]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  254.814947]  ? prepare_exit_to_usermode+0x291/0x3b0
[  254.820059]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.824916]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  254.830301] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  254.830391] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  254.837234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  254.837240] Call Trace:
[  254.837247]  <IRQ>
[  254.837266]  dump_stack+0x244/0x39d
[  254.837288]  ? dump_stack_print_info.cold.1+0x20/0x20
[  254.843864] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  254.853130]  warn_alloc.cold.116+0xb7/0x1bd
[  254.855687] syz-executor4 cpuset=syz4 mems_allowed=0
[  254.857831]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  254.891316]  ? lock_downgrade+0x900/0x900
[  254.895480]  ? trace_hardirqs_off+0xb8/0x310
[  254.899895]  ? trace_hardirqs_off+0xb8/0x310
[  254.904324]  __alloc_pages_slowpath+0x26e8/0x2e10
[  254.909197]  ? warn_alloc+0x120/0x120
[  254.913007]  ? print_usage_bug+0xc0/0xc0
[  254.917071]  ? warn_alloc+0x120/0x120
[  254.920882]  ? warn_alloc+0x120/0x120
[  254.924690]  ? print_usage_bug+0xc0/0xc0
[  254.928760]  ? print_usage_bug+0xc0/0xc0
[  254.932828]  ? __lock_acquire+0x62f/0x4c20
[  254.937072]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.942614]  ? should_fail+0x22d/0xd01
[  254.946506]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.951613]  ? __lock_acquire+0x62f/0x4c20
[  254.955855]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.960962]  ? __lock_acquire+0x62f/0x4c20
[  254.965200]  ? should_fail+0x22d/0xd01
[  254.969093]  ? find_held_lock+0x36/0x1c0
[  254.973162]  ? mark_held_locks+0x130/0x130
[  254.977405]  ? mark_held_locks+0x130/0x130
[  254.981640]  ? zap_class+0x640/0x640
[  254.985358]  ? zap_class+0x640/0x640
[  254.989080]  ? print_usage_bug+0xc0/0xc0
[  254.993141]  ? do_raw_spin_unlock+0xa7/0x330
[  254.997551]  ? zap_class+0x640/0x640
[  255.001266]  ? print_usage_bug+0xc0/0xc0
[  255.005326]  ? wq_watchdog_touch+0x9c/0xfe
[  255.009568]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.015111]  ? check_preemption_disabled+0x48/0x280
[  255.020136]  ? __lock_is_held+0xb5/0x140
[  255.024206]  __alloc_pages_nodemask+0xa80/0xde0
[  255.028884]  ? zap_class+0x640/0x640
[  255.032632]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  255.037660]  ? find_held_lock+0x36/0x1c0
[  255.041744]  ? ____cache_alloc_node+0x1c7/0x1e0
[  255.046414]  ? lock_downgrade+0x900/0x900
[  255.050573]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.056118]  cache_grow_begin+0xa5/0x8c0
[  255.060178]  ? do_raw_spin_unlock+0xa7/0x330
[  255.064595]  fallback_alloc+0x204/0x2e0
[  255.068577]  ____cache_alloc_node+0x1c7/0x1e0
[  255.073083]  kmem_cache_alloc_node+0xe3/0x730
[  255.077580]  ? ipv6_get_ifaddr+0x42e/0x620
[  255.081828]  __alloc_skb+0x119/0x770
[  255.085547]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.090830]  ? netdev_alloc_frag+0x1f0/0x1f0
[  255.095241]  ? lock_downgrade+0x900/0x900
[  255.099398]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.104937]  ? refcount_sub_and_test_checked+0x203/0x310
[  255.110411]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  255.115867]  ? addrconf_rs_timer+0x690/0x690
[  255.120298]  ndisc_alloc_skb+0x144/0x340
[  255.124368]  ndisc_send_rs+0x331/0x6e0
[  255.128260]  addrconf_rs_timer+0x314/0x690
[  255.132501]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.136754]  call_timer_fn+0x272/0x920
[  255.140647]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.144883]  ? process_timeout+0x40/0x40
[  255.148964]  ? mark_held_locks+0xc7/0x130
[  255.153119]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.157610]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.162106]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.166343]  ? lockdep_hardirqs_on+0x296/0x5b0
[  255.170940]  ? trace_hardirqs_on+0xbd/0x310
[  255.175266]  ? kasan_check_read+0x11/0x20
[  255.179416]  ? __run_timers+0x7da/0xc70
[  255.183393]  ? trace_hardirqs_off_caller+0x310/0x310
[  255.188507]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.192766]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.197011]  __run_timers+0x7e5/0xc70
[  255.200823]  ? timer_fixup_init+0x70/0x70
[  255.204973]  ? kasan_check_read+0x11/0x20
[  255.209126]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.214404]  ? rcu_softirq_qs+0x20/0x20
[  255.218389]  ? mark_held_locks+0xc7/0x130
[  255.222542]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  255.227302]  ? retint_kernel+0x2d/0x2d
[  255.231194]  ? trace_hardirqs_on_caller+0xc0/0x310
[  255.236127]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  255.240884]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  255.246344]  ? zap_class+0x640/0x640
[  255.250067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.255606]  ? check_preemption_disabled+0x48/0x280
[  255.260634]  ? __lock_is_held+0xb5/0x140
[  255.264715]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.270256]  ? check_preemption_disabled+0x48/0x280
[  255.275278]  run_timer_softirq+0x52/0xb0
[  255.279341]  ? rcu_read_lock_sched_held+0x14f/0x180
[  255.284363]  __do_softirq+0x308/0xb7e
[  255.288171]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  255.292670]  ? lock_downgrade+0x900/0x900
[  255.296826]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  255.301942]  ? pvclock_read_flags+0x160/0x160
[  255.306441]  ? lapic_next_event+0x5a/0x90
[  255.310597]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.316141]  ? kvm_clock_read+0x18/0x30
[  255.320117]  ? kvm_sched_clock_read+0x9/0x20
[  255.324532]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.330077]  ? check_preemption_disabled+0x48/0x280
[  255.335108]  irq_exit+0x17f/0x1c0
[  255.338566]  smp_apic_timer_interrupt+0x1cb/0x760
[  255.343413]  ? smp_call_function_single_interrupt+0x650/0x650
[  255.349296]  ? interrupt_entry+0xb5/0xc0
[  255.353361]  ? trace_hardirqs_off_caller+0xbb/0x310
[  255.358375]  ? trace_hardirqs_off_caller+0xbb/0x310
[  255.363394]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.368239]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.373254]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.378270]  ? task_prio+0x50/0x50
[  255.381813]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.387354]  ? check_preemption_disabled+0x48/0x280
[  255.392377]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.397231]  apic_timer_interrupt+0xf/0x20
[  255.401475]  </IRQ>
[  255.403732] RIP: 0010:dump_stack+0x358/0x39d
[  255.408149] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  255.427058] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  255.434773] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  255.442041] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  255.449312] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  255.456578] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  255.463849] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  255.471152]  ? dump_stack+0x34f/0x39d
[  255.474969]  ? dump_stack_print_info.cold.1+0x20/0x20
[  255.480168]  ? mark_held_locks+0x130/0x130
[  255.484408]  ? mark_held_locks+0x130/0x130
[  255.488648]  dump_header+0x27b/0xf72
[  255.492379]  ? pagefault_out_of_memory+0x197/0x197
[  255.497331]  ? __lock_acquire+0x62f/0x4c20
[  255.501571]  ? percpu_ref_get_many+0x240/0x240
[  255.506161]  ? print_usage_bug+0xc0/0xc0
[  255.510231]  ? zap_class+0x640/0x640
[  255.513947]  ? print_usage_bug+0xc0/0xc0
[  255.518012]  ? print_usage_bug+0xc0/0xc0
[  255.522078]  ? zap_class+0x640/0x640
[  255.525798]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.531340]  ? find_held_lock+0x36/0x1c0
[  255.535411]  ? mark_held_locks+0xc7/0x130
[  255.539562]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  255.544664]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  255.549768]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  255.554352]  ? trace_hardirqs_on+0xbd/0x310
[  255.558675]  ? kasan_check_read+0x11/0x20
[  255.562822]  ? ___ratelimit+0x3b4/0x672
[  255.566799]  ? trace_hardirqs_off_caller+0x310/0x310
[  255.571911]  ? trace_hardirqs_on+0x310/0x310
[  255.576324]  ? lock_downgrade+0x900/0x900
[  255.580479]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  255.585583]  ? ___ratelimit+0x3b9/0x672
[  255.589558]  ? idr_get_free+0xf70/0xf70
[  255.593531]  ? find_held_lock+0x36/0x1c0
[  255.597606]  oom_kill_process.cold.27+0x10/0x903
[  255.602368]  ? zap_class+0x640/0x640
[  255.606102]  ? check_preemption_disabled+0x48/0x280
[  255.611130]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  255.616156]  ? kasan_check_read+0x11/0x20
[  255.620303]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.625584]  ? oom_evaluate_task+0x540/0x540
[  255.629997]  ? find_held_lock+0x36/0x1c0
[  255.634075]  ? out_of_memory+0x974/0x1430
[  255.638231]  ? lock_downgrade+0x900/0x900
[  255.642381]  ? check_preemption_disabled+0x48/0x280
[  255.647401]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  255.652330]  ? kasan_check_read+0x11/0x20
[  255.656478]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.661755]  ? rcu_softirq_qs+0x20/0x20
[  255.665735]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.671362]  ? oom_evaluate_task+0x302/0x540
[  255.675777]  out_of_memory+0xa84/0x1430
[  255.679763]  ? oom_killer_disable+0x3a0/0x3a0
[  255.684260]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  255.689197]  ? __ww_mutex_check_waiters+0x160/0x160
[  255.694227]  __alloc_pages_slowpath+0x2354/0x2e10
[  255.699099]  ? warn_alloc+0x120/0x120
[  255.702908]  ? mark_held_locks+0x130/0x130
[  255.707167]  ? find_get_entry+0xaae/0x1120
[  255.711411]  ? filemap_map_pages+0x1a20/0x1a20
[  255.716008]  ? zap_class+0x640/0x640
[  255.719734]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.725275]  ? check_preemption_disabled+0x48/0x280
[  255.730292]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.735830]  ? should_fail+0x22d/0xd01
[  255.739725]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.744830]  ? zap_class+0x640/0x640
[  255.748603]  ? __lock_is_held+0xb5/0x140
[  255.752679]  ? mark_held_locks+0x130/0x130
[  255.756930]  ? lock_release+0xa00/0xa00
[  255.760914]  ? perf_trace_sched_process_exec+0x860/0x860
[  255.766371]  ? xa_load+0x2ba/0x460
[  255.769919]  ? lock_downgrade+0x900/0x900
[  255.774073]  ? __might_sleep+0x95/0x190
[  255.778058]  __alloc_pages_nodemask+0xa80/0xde0
[  255.782738]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  255.787758]  ? __page_cache_alloc+0x191/0x5c0
[  255.792252]  ? xa_load+0x2e1/0x460
[  255.795793]  ? xa_clear_mark+0x40/0x40
[  255.799683]  ? zap_class+0x640/0x640
[  255.803404]  ? zap_class+0x640/0x640
[  255.807118]  ? zap_class+0x640/0x640
[  255.810832]  ? __do_page_cache_readahead+0x663/0x810
[  255.815956]  ? find_held_lock+0x36/0x1c0
[  255.820048]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  255.825597]  alloc_pages_current+0x173/0x350
[  255.830022]  __page_cache_alloc+0x38c/0x5c0
[  255.834368]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  255.839298]  ? kasan_check_read+0x11/0x20
[  255.843445]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.848814]  ? generic_perform_write+0x6a0/0x6a0
[  255.853573]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.859119]  ? check_preemption_disabled+0x48/0x280
[  255.864147]  filemap_fault+0x1595/0x25f0
[  255.868225]  ? __lock_page_or_retry+0xa00/0xa00
[  255.872911]  ? mark_held_locks+0x130/0x130
[  255.877168]  ? filemap_map_pages+0xd6b/0x1a20
[  255.881794]  ? lock_downgrade+0x900/0x900
[  255.885970]  ? check_preemption_disabled+0x48/0x280
[  255.891034]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  255.895967]  ? kasan_check_read+0x11/0x20
[  255.900121]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.905396]  ? rcu_softirq_qs+0x20/0x20
[  255.909386]  ? filemap_map_pages+0xd92/0x1a20
[  255.913920]  ? find_get_entries_tag+0x1400/0x1400
[  255.918762]  ? find_held_lock+0x36/0x1c0
[  255.922861]  ? lock_acquire+0x1ed/0x520
[  255.926834]  ? ext4_filemap_fault+0x7a/0xad
[  255.931163]  ? lock_release+0xa00/0xa00
[  255.935136]  ? perf_trace_sched_process_exec+0x860/0x860
[  255.940588]  ? print_usage_bug+0xc0/0xc0
[  255.944649]  ? print_usage_bug+0xc0/0xc0
[  255.948725]  ? down_read+0x8d/0x120
[  255.952348]  ? ext4_filemap_fault+0x7a/0xad
[  255.956671]  ? __down_interruptible+0x700/0x700
[  255.961353]  ext4_filemap_fault+0x82/0xad
[  255.965504]  __do_fault+0x100/0x6b0
[  255.969136]  ? find_held_lock+0x36/0x1c0
[  255.973199]  ? pmd_devmap_trans_unstable+0x220/0x220
[  255.978309]  ? mark_held_locks+0x130/0x130
[  255.982567]  ? mark_held_locks+0x130/0x130
[  255.986830]  ? kasan_check_read+0x11/0x20
[  255.990981]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.996550]  __handle_mm_fault+0x3ea0/0x5be0
[  256.000963]  ? perf_trace_lock+0x7a0/0x7a0
[  256.005206]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  256.010058]  ? __switch_to_asm+0x34/0x70
[  256.014118]  ? __switch_to_asm+0x34/0x70
[  256.018196]  ? zap_class+0x640/0x640
[  256.021922]  ? zap_class+0x640/0x640
[  256.025636]  ? __x64_sys_futex+0x53e/0x6a0
[  256.029877]  ? find_held_lock+0x36/0x1c0
[  256.033955]  ? handle_mm_fault+0x42a/0xc70
[  256.038202]  ? lock_downgrade+0x900/0x900
[  256.042355]  ? check_preemption_disabled+0x48/0x280
[  256.047375]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.052313]  ? kasan_check_read+0x11/0x20
[  256.056462]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.061738]  ? rcu_softirq_qs+0x20/0x20
[  256.065713]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.070823]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.076366]  ? check_preemption_disabled+0x48/0x280
[  256.081393]  handle_mm_fault+0x54f/0xc70
[  256.085460]  ? __handle_mm_fault+0x5be0/0x5be0
[  256.090047]  ? find_vma+0x34/0x190
[  256.093598]  __do_page_fault+0x5e8/0xe60
[  256.097660]  ? trace_hardirqs_off+0xb8/0x310
[  256.102098]  do_page_fault+0xf2/0x7e0
[  256.105935]  ? vmalloc_sync_all+0x30/0x30
[  256.110084]  ? error_entry+0x70/0xd0
[  256.113799]  ? trace_hardirqs_off_caller+0xbb/0x310
[  256.118815]  ? trace_hardirqs_on_caller+0xc0/0x310
[  256.123749]  ? syscall_return_slowpath+0x5e0/0x5e0
[  256.128677]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.133525]  ? trace_hardirqs_on_caller+0x310/0x310
[  256.138545]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  256.144004]  ? prepare_exit_to_usermode+0x291/0x3b0
[  256.149028]  ? page_fault+0x8/0x30
[  256.152571]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.157416]  ? page_fault+0x8/0x30
[  256.160959]  page_fault+0x1e/0x30
[  256.164417] RIP: 0033:0x44b69a
[  256.167626] Code: Bad RIP value.
[  256.170990] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  256.176390] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  256.183658] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  256.190934] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  256.198199] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  256.205465] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  256.212782] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  256.212788] warn_alloc_show_mem: 1 callbacks suppressed
[  256.212796] Mem-Info:
[  256.219995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  256.225368] active_anon:47227 inactive_anon:190 isolated_anon:0
[  256.225368]  active_file:11 inactive_file:14 isolated_file:0
[  256.225368]  unevictable:0 dirty:0 writeback:0 unstable:0
[  256.225368]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  256.225368]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  256.225368]  free:13756 free_pcp:235 free_cma:0
[  256.227738] Call Trace:
[  256.237129] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  256.269984]  <IRQ>
[  256.272583] 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
[  256.300091]  dump_stack+0x244/0x39d
[  256.302208] lowmem_reserve[]: 0 2818 6321 6321
[  256.328337]  ? dump_stack_print_info.cold.1+0x20/0x20
[  256.331936] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  256.336573]  warn_alloc.cold.116+0xb7/0x1bd
[  256.341727] lowmem_reserve[]: 0 0 3503 3503
[  256.369063]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  256.373358] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  256.377679]  ? lock_downgrade+0x900/0x900
[  256.382493] lowmem_reserve[]: 0 0 0 0
[  256.411393]  ? trace_hardirqs_off+0xb8/0x310
[  256.415514] 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
[  256.419315]  ? trace_hardirqs_off+0xb8/0x310
[  256.423697] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  256.437236]  __alloc_pages_slowpath+0x26e8/0x2e10
[  256.441630] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  256.456970]  ? warn_alloc+0x120/0x120
[  256.461779] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  256.476854]  ? print_usage_bug+0xc0/0xc0
[  256.480630] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  256.489470]  ? warn_alloc+0x120/0x120
[  256.493523] 269 total pagecache pages
[  256.502091]  ? warn_alloc+0x120/0x120
[  256.505879] 0 pages in swap cache
[  256.509692]  ? print_usage_bug+0xc0/0xc0
[  256.513483] Swap cache stats: add 0, delete 0, find 0/0
[  256.516937]  ? kvm_clock_read+0x18/0x30
[  256.520975] Free swap  = 0kB
[  256.526334]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  256.530279] Total swap = 0kB
[  256.533292]  ? print_usage_bug+0xc0/0xc0
[  256.538277] 1965979 pages RAM
[  256.541295]  ? __lock_acquire+0x62f/0x4c20
[  256.545335] 0 pages HighMem/MovableOnly
[  256.548433]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.552640] 342853 pages reserved
[  256.556612]  ? should_fail+0x22d/0xd01
[  256.562124] 0 pages cma reserved
[  256.565568]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.569511] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  256.572790]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  256.572807]  ? __lock_acquire+0x62f/0x4c20
[  256.572826]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  256.578152] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  256.584571]  ? __lock_acquire+0x62f/0x4c20
[  256.589647] syz-fuzzer cpuset=/ mems_allowed=0
[  256.593868]  ? should_fail+0x22d/0xd01
[  256.593884]  ? rcu_irq_exit+0x1a2/0x390
[  256.625817]  ? mark_held_locks+0x130/0x130
[  256.630058]  ? mark_held_locks+0x130/0x130
[  256.634301]  ? mark_held_locks+0xc7/0x130
[  256.638462]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  256.643485]  ? zap_class+0x640/0x640
[  256.647208]  ? print_usage_bug+0xc0/0xc0
[  256.651274]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.656812]  ? check_preemption_disabled+0x48/0x280
[  256.661840]  ? __lock_is_held+0xb5/0x140
[  256.665929]  __alloc_pages_nodemask+0xa80/0xde0
[  256.670612]  ? zap_class+0x640/0x640
[  256.674333]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  256.679375]  ? find_held_lock+0x36/0x1c0
[  256.683454]  ? ____cache_alloc_node+0x1c7/0x1e0
[  256.688126]  ? lock_downgrade+0x900/0x900
[  256.692282]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.697827]  cache_grow_begin+0xa5/0x8c0
[  256.701887]  ? do_raw_spin_unlock+0xa7/0x330
[  256.706314]  fallback_alloc+0x204/0x2e0
[  256.710301]  ____cache_alloc_node+0x1c7/0x1e0
[  256.714803]  kmem_cache_alloc_node+0xe3/0x730
[  256.719305]  ? ipv6_get_ifaddr+0x42e/0x620
[  256.723558]  __alloc_skb+0x119/0x770
[  256.727273]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.732554]  ? netdev_alloc_frag+0x1f0/0x1f0
[  256.736964]  ? lock_downgrade+0x900/0x900
[  256.741125]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.746667]  ? refcount_sub_and_test_checked+0x203/0x310
[  256.752298]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  256.757776]  ? addrconf_rs_timer+0x690/0x690
[  256.762197]  ndisc_alloc_skb+0x144/0x340
[  256.766273]  ndisc_send_rs+0x331/0x6e0
[  256.770197]  addrconf_rs_timer+0x314/0x690
[  256.774441]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.778690]  call_timer_fn+0x272/0x920
[  256.782579]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.786841]  ? process_timeout+0x40/0x40
[  256.790920]  ? __run_timers+0x7da/0xc70
[  256.794928]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.799426]  ? _raw_spin_unlock_irq+0x27/0x80
[  256.803932]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.808172]  ? lockdep_hardirqs_on+0x296/0x5b0
[  256.812757]  ? trace_hardirqs_on+0xbd/0x310
[  256.817080]  ? kasan_check_read+0x11/0x20
[  256.821230]  ? __run_timers+0x7da/0xc70
[  256.825218]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.830340]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.834582]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  256.838816]  __run_timers+0x7e5/0xc70
[  256.842805]  ? timer_fixup_init+0x70/0x70
[  256.846959]  ? lock_acquire+0x1ed/0x520
[  256.850974]  ? zap_class+0x640/0x640
[  256.854689]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.860244]  ? kasan_check_read+0x11/0x20
[  256.864404]  ? do_raw_spin_lock+0x14f/0x350
[  256.868733]  ? find_held_lock+0x36/0x1c0
[  256.872806]  ? zap_class+0x640/0x640
[  256.876527]  ? pvclock_read_flags+0x160/0x160
[  256.881029]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.886571]  ? check_preemption_disabled+0x48/0x280
[  256.891602]  ? __lock_is_held+0xb5/0x140
[  256.895664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.901202]  ? check_preemption_disabled+0x48/0x280
[  256.906224]  run_timer_softirq+0x52/0xb0
[  256.910291]  ? rcu_read_lock_sched_held+0x14f/0x180
[  256.915308]  __do_softirq+0x308/0xb7e
[  256.919112]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  256.923609]  ? lock_downgrade+0x900/0x900
[  256.927764]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  256.932874]  ? pvclock_read_flags+0x160/0x160
[  256.937382]  ? lapic_next_event+0x5a/0x90
[  256.941538]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.947082]  ? kvm_clock_read+0x18/0x30
[  256.951061]  ? kvm_sched_clock_read+0x9/0x20
[  256.955477]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.961025]  ? check_preemption_disabled+0x48/0x280
[  256.966054]  irq_exit+0x17f/0x1c0
[  256.969516]  smp_apic_timer_interrupt+0x1cb/0x760
[  256.974362]  ? smp_call_function_single_interrupt+0x159/0x650
[  256.980248]  ? smp_call_function_single_interrupt+0x650/0x650
[  256.986131]  ? interrupt_entry+0xb5/0xc0
[  256.990218]  ? trace_hardirqs_off_caller+0xbb/0x310
[  256.995235]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.000255]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.005099]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.010117]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.015150]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.020002]  apic_timer_interrupt+0xf/0x20
[  257.024234]  </IRQ>
[  257.026492] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  257.031458] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  257.050363] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  257.058069] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  257.065336] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  257.072602] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  257.079868] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  257.087142] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  257.094460]  skb_clone+0x1bb/0x500
[  257.098002]  ? skb_split+0x11e0/0x11e0
[  257.101897]  ? check_preemption_disabled+0x48/0x280
[  257.106931]  ? __this_cpu_preempt_check+0x1c/0x20
[  257.111778]  ? __bpf_redirect+0x54b/0xb20
[  257.115945]  bpf_clone_redirect+0xb9/0x490
[  257.120187]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  257.125219]  ? __sched_text_start+0x8/0x8
[  257.129368]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  257.134140]  ? find_held_lock+0x36/0x1c0
[  257.138209]  ? lock_acquire+0x1ed/0x520
[  257.142185]  ? bpf_test_run+0x3cb/0x780
[  257.146165]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.151704]  ? check_preemption_disabled+0x48/0x280
[  257.156731]  ? kasan_check_read+0x11/0x20
[  257.160881]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.166166]  ? rcu_softirq_qs+0x20/0x20
[  257.170147]  ? preempt_schedule+0x4d/0x60
[  257.174298]  ? ___preempt_schedule+0x16/0x18
[  257.178715]  ? bpf_test_run+0x25d/0x780
[  257.182701]  ? netlink_diag_dump+0x2a0/0x2a0
[  257.187120]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  257.191895]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  257.196668]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  257.201540]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  257.207094]  ? fput+0x130/0x1a0
[  257.210373]  ? __bpf_prog_get+0x9b/0x290
[  257.214437]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  257.219279]  ? bpf_prog_test_run+0x130/0x1a0
[  257.223690]  ? __x64_sys_bpf+0x3d8/0x520
[  257.227751]  ? bpf_prog_get+0x20/0x20
[  257.231577]  ? do_syscall_64+0x1b9/0x820
[  257.235641]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  257.241006]  ? syscall_return_slowpath+0x5e0/0x5e0
[  257.245951]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.250800]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.255818]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  257.260838]  ? prepare_exit_to_usermode+0x291/0x3b0
[  257.265876]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.270733]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  257.276125] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  257.276216] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  257.283064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  257.283069] Call Trace:
[  257.283076]  <IRQ>
[  257.283095]  dump_stack+0x244/0x39d
[  257.283115]  ? dump_stack_print_info.cold.1+0x20/0x20
[  257.289679] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  257.298959]  warn_alloc.cold.116+0xb7/0x1bd
[  257.301541] syz-executor4 cpuset=syz4 mems_allowed=0
[  257.303684]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  257.337182]  ? lock_downgrade+0x900/0x900
[  257.341343]  ? trace_hardirqs_off+0xb8/0x310
[  257.345760]  ? trace_hardirqs_off+0xb8/0x310
[  257.350178]  __alloc_pages_slowpath+0x26e8/0x2e10
[  257.355053]  ? warn_alloc+0x120/0x120
[  257.358859]  ? print_usage_bug+0xc0/0xc0
[  257.362930]  ? warn_alloc+0x120/0x120
[  257.366735]  ? warn_alloc+0x120/0x120
[  257.370551]  ? print_usage_bug+0xc0/0xc0
[  257.374616]  ? print_usage_bug+0xc0/0xc0
[  257.378695]  ? __lock_acquire+0x62f/0x4c20
[  257.382940]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.388481]  ? should_fail+0x22d/0xd01
[  257.392377]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.397479]  ? __lock_acquire+0x62f/0x4c20
[  257.401747]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.406850]  ? __lock_acquire+0x62f/0x4c20
[  257.411085]  ? should_fail+0x22d/0xd01
[  257.414971]  ? find_held_lock+0x36/0x1c0
[  257.419079]  ? mark_held_locks+0x130/0x130
[  257.423319]  ? mark_held_locks+0x130/0x130
[  257.427551]  ? zap_class+0x640/0x640
[  257.431266]  ? zap_class+0x640/0x640
[  257.434998]  ? print_usage_bug+0xc0/0xc0
[  257.439065]  ? do_raw_spin_unlock+0xa7/0x330
[  257.443474]  ? zap_class+0x640/0x640
[  257.447187]  ? print_usage_bug+0xc0/0xc0
[  257.451246]  ? wq_watchdog_touch+0x9c/0xfe
[  257.455487]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.461036]  ? check_preemption_disabled+0x48/0x280
[  257.466063]  ? __lock_is_held+0xb5/0x140
[  257.470132]  __alloc_pages_nodemask+0xa80/0xde0
[  257.474800]  ? zap_class+0x640/0x640
[  257.478524]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  257.483551]  ? find_held_lock+0x36/0x1c0
[  257.487638]  ? ____cache_alloc_node+0x1c7/0x1e0
[  257.492308]  ? lock_downgrade+0x900/0x900
[  257.496465]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.502015]  cache_grow_begin+0xa5/0x8c0
[  257.506078]  ? do_raw_spin_unlock+0xa7/0x330
[  257.510493]  fallback_alloc+0x204/0x2e0
[  257.514475]  ____cache_alloc_node+0x1c7/0x1e0
[  257.518976]  kmem_cache_alloc_node+0xe3/0x730
[  257.523490]  ? ipv6_get_ifaddr+0x42e/0x620
[  257.527741]  __alloc_skb+0x119/0x770
[  257.531455]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.536738]  ? netdev_alloc_frag+0x1f0/0x1f0
[  257.541150]  ? lock_downgrade+0x900/0x900
[  257.545310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.550854]  ? refcount_sub_and_test_checked+0x203/0x310
[  257.556310]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  257.561760]  ? addrconf_rs_timer+0x690/0x690
[  257.566182]  ndisc_alloc_skb+0x144/0x340
[  257.570250]  ndisc_send_rs+0x331/0x6e0
[  257.574144]  addrconf_rs_timer+0x314/0x690
[  257.578388]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.582640]  call_timer_fn+0x272/0x920
[  257.586530]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.590764]  ? process_timeout+0x40/0x40
[  257.594836]  ? mark_held_locks+0xc7/0x130
[  257.598986]  ? _raw_spin_unlock_irq+0x27/0x80
[  257.603483]  ? _raw_spin_unlock_irq+0x27/0x80
[  257.607974]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.612212]  ? lockdep_hardirqs_on+0x296/0x5b0
[  257.616799]  ? trace_hardirqs_on+0xbd/0x310
[  257.621122]  ? kasan_check_read+0x11/0x20
[  257.625268]  ? __run_timers+0x7da/0xc70
[  257.629243]  ? trace_hardirqs_off_caller+0x310/0x310
[  257.634350]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.638595]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.642826]  __run_timers+0x7e5/0xc70
[  257.646637]  ? timer_fixup_init+0x70/0x70
[  257.650793]  ? kasan_check_read+0x11/0x20
[  257.654940]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.660215]  ? rcu_softirq_qs+0x20/0x20
[  257.664195]  ? mark_held_locks+0xc7/0x130
[  257.668348]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  257.673107]  ? retint_kernel+0x2d/0x2d
[  257.676997]  ? trace_hardirqs_on_caller+0xc0/0x310
[  257.681941]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  257.686703]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  257.692153]  ? zap_class+0x640/0x640
[  257.695875]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.701423]  ? check_preemption_disabled+0x48/0x280
[  257.706450]  ? __lock_is_held+0xb5/0x140
[  257.710516]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.716061]  ? check_preemption_disabled+0x48/0x280
[  257.721086]  run_timer_softirq+0x52/0xb0
[  257.725153]  ? rcu_read_lock_sched_held+0x14f/0x180
[  257.730175]  __do_softirq+0x308/0xb7e
[  257.733985]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  257.738492]  ? lock_downgrade+0x900/0x900
[  257.742648]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  257.747760]  ? pvclock_read_flags+0x160/0x160
[  257.752297]  ? lapic_next_event+0x5a/0x90
[  257.756454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.762018]  ? kvm_clock_read+0x18/0x30
[  257.765992]  ? kvm_sched_clock_read+0x9/0x20
[  257.770408]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.775949]  ? check_preemption_disabled+0x48/0x280
[  257.780980]  irq_exit+0x17f/0x1c0
[  257.784441]  smp_apic_timer_interrupt+0x1cb/0x760
[  257.789283]  ? smp_call_function_single_interrupt+0x650/0x650
[  257.795172]  ? interrupt_entry+0xb5/0xc0
[  257.799238]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.804272]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.809298]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.814155]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.819169]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.824187]  ? task_prio+0x50/0x50
[  257.827731]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.833272]  ? check_preemption_disabled+0x48/0x280
[  257.838298]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.843151]  apic_timer_interrupt+0xf/0x20
[  257.847420]  </IRQ>
[  257.849681] RIP: 0010:dump_stack+0x358/0x39d
[  257.854090] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  257.872989] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  257.880702] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  257.888122] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  257.895394] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  257.902660] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  257.909981] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  257.917281]  ? dump_stack+0x34f/0x39d
[  257.921094]  ? dump_stack_print_info.cold.1+0x20/0x20
[  257.926287]  ? mark_held_locks+0x130/0x130
[  257.930521]  ? mark_held_locks+0x130/0x130
[  257.934761]  dump_header+0x27b/0xf72
[  257.938488]  ? pagefault_out_of_memory+0x197/0x197
[  257.943520]  ? __lock_acquire+0x62f/0x4c20
[  257.947760]  ? percpu_ref_get_many+0x240/0x240
[  257.952343]  ? print_usage_bug+0xc0/0xc0
[  257.956408]  ? zap_class+0x640/0x640
[  257.960157]  ? print_usage_bug+0xc0/0xc0
[  257.964227]  ? print_usage_bug+0xc0/0xc0
[  257.968299]  ? zap_class+0x640/0x640
[  257.972030]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.977571]  ? find_held_lock+0x36/0x1c0
[  257.981664]  ? mark_held_locks+0xc7/0x130
[  257.985813]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  257.990920]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  257.996029]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  258.000632]  ? trace_hardirqs_on+0xbd/0x310
[  258.004981]  ? kasan_check_read+0x11/0x20
[  258.009146]  ? ___ratelimit+0x3b4/0x672
[  258.013128]  ? trace_hardirqs_off_caller+0x310/0x310
[  258.018231]  ? trace_hardirqs_on+0x310/0x310
[  258.022644]  ? lock_downgrade+0x900/0x900
[  258.026796]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  258.031931]  ? ___ratelimit+0x3b9/0x672
[  258.035924]  ? idr_get_free+0xf70/0xf70
[  258.039906]  ? find_held_lock+0x36/0x1c0
[  258.043987]  oom_kill_process.cold.27+0x10/0x903
[  258.048750]  ? zap_class+0x640/0x640
[  258.052464]  ? check_preemption_disabled+0x48/0x280
[  258.057498]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.062461]  ? kasan_check_read+0x11/0x20
[  258.066637]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.071939]  ? oom_evaluate_task+0x540/0x540
[  258.076364]  ? find_held_lock+0x36/0x1c0
[  258.080430]  ? out_of_memory+0x974/0x1430
[  258.084580]  ? lock_downgrade+0x900/0x900
[  258.088730]  ? check_preemption_disabled+0x48/0x280
[  258.093749]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.098693]  ? kasan_check_read+0x11/0x20
[  258.102838]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.108111]  ? rcu_softirq_qs+0x20/0x20
[  258.112124]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.117662]  ? oom_evaluate_task+0x302/0x540
[  258.122078]  out_of_memory+0xa84/0x1430
[  258.126064]  ? oom_killer_disable+0x3a0/0x3a0
[  258.130560]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  258.135499]  ? __ww_mutex_check_waiters+0x160/0x160
[  258.140526]  __alloc_pages_slowpath+0x2354/0x2e10
[  258.145399]  ? warn_alloc+0x120/0x120
[  258.149203]  ? mark_held_locks+0x130/0x130
[  258.153441]  ? find_get_entry+0xaae/0x1120
[  258.157714]  ? filemap_map_pages+0x1a20/0x1a20
[  258.162302]  ? zap_class+0x640/0x640
[  258.166031]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.171596]  ? check_preemption_disabled+0x48/0x280
[  258.176614]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.182165]  ? should_fail+0x22d/0xd01
[  258.186078]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.191185]  ? zap_class+0x640/0x640
[  258.194939]  ? __lock_is_held+0xb5/0x140
[  258.199014]  ? mark_held_locks+0x130/0x130
[  258.203258]  ? lock_release+0xa00/0xa00
[  258.207238]  ? perf_trace_sched_process_exec+0x860/0x860
[  258.212724]  ? xa_load+0x2ba/0x460
[  258.216265]  ? lock_downgrade+0x900/0x900
[  258.220421]  ? __might_sleep+0x95/0x190
[  258.224401]  __alloc_pages_nodemask+0xa80/0xde0
[  258.229108]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  258.234132]  ? __page_cache_alloc+0x191/0x5c0
[  258.238628]  ? xa_load+0x2e1/0x460
[  258.242172]  ? xa_clear_mark+0x40/0x40
[  258.246077]  ? zap_class+0x640/0x640
[  258.249804]  ? zap_class+0x640/0x640
[  258.253522]  ? zap_class+0x640/0x640
[  258.257240]  ? __do_page_cache_readahead+0x663/0x810
[  258.262347]  ? find_held_lock+0x36/0x1c0
[  258.266421]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  258.271965]  alloc_pages_current+0x173/0x350
[  258.276381]  __page_cache_alloc+0x38c/0x5c0
[  258.280716]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.285644]  ? kasan_check_read+0x11/0x20
[  258.289790]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.295076]  ? generic_perform_write+0x6a0/0x6a0
[  258.299834]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.305373]  ? check_preemption_disabled+0x48/0x280
[  258.310427]  filemap_fault+0x1595/0x25f0
[  258.314499]  ? __lock_page_or_retry+0xa00/0xa00
[  258.319170]  ? mark_held_locks+0x130/0x130
[  258.323430]  ? filemap_map_pages+0xd6b/0x1a20
[  258.327932]  ? lock_downgrade+0x900/0x900
[  258.332079]  ? check_preemption_disabled+0x48/0x280
[  258.337098]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.342031]  ? kasan_check_read+0x11/0x20
[  258.346182]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.351457]  ? rcu_softirq_qs+0x20/0x20
[  258.355444]  ? filemap_map_pages+0xd92/0x1a20
[  258.359954]  ? find_get_entries_tag+0x1400/0x1400
[  258.364794]  ? find_held_lock+0x36/0x1c0
[  258.368874]  ? lock_acquire+0x1ed/0x520
[  258.372860]  ? ext4_filemap_fault+0x7a/0xad
[  258.377193]  ? lock_release+0xa00/0xa00
[  258.381170]  ? perf_trace_sched_process_exec+0x860/0x860
[  258.386622]  ? print_usage_bug+0xc0/0xc0
[  258.390685]  ? print_usage_bug+0xc0/0xc0
[  258.394758]  ? down_read+0x8d/0x120
[  258.398388]  ? ext4_filemap_fault+0x7a/0xad
[  258.402712]  ? __down_interruptible+0x700/0x700
[  258.407391]  ext4_filemap_fault+0x82/0xad
[  258.411547]  __do_fault+0x100/0x6b0
[  258.415173]  ? find_held_lock+0x36/0x1c0
[  258.419237]  ? pmd_devmap_trans_unstable+0x220/0x220
[  258.424399]  ? mark_held_locks+0x130/0x130
[  258.428651]  ? mark_held_locks+0x130/0x130
[  258.432905]  ? kasan_check_read+0x11/0x20
[  258.437062]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.442605]  __handle_mm_fault+0x3ea0/0x5be0
[  258.447020]  ? perf_trace_lock+0x7a0/0x7a0
[  258.451268]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  258.456123]  ? __switch_to_asm+0x34/0x70
[  258.460200]  ? __switch_to_asm+0x34/0x70
[  258.464276]  ? zap_class+0x640/0x640
[  258.468009]  ? zap_class+0x640/0x640
[  258.471722]  ? __x64_sys_futex+0x53e/0x6a0
[  258.475977]  ? find_held_lock+0x36/0x1c0
[  258.480061]  ? handle_mm_fault+0x42a/0xc70
[  258.484299]  ? lock_downgrade+0x900/0x900
[  258.488448]  ? check_preemption_disabled+0x48/0x280
[  258.493468]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.498398]  ? kasan_check_read+0x11/0x20
[  258.502545]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.507848]  ? rcu_softirq_qs+0x20/0x20
[  258.511822]  ? trace_hardirqs_off_caller+0x310/0x310
[  258.516950]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.522487]  ? check_preemption_disabled+0x48/0x280
[  258.527512]  handle_mm_fault+0x54f/0xc70
[  258.531579]  ? __handle_mm_fault+0x5be0/0x5be0
[  258.536165]  ? find_vma+0x34/0x190
[  258.539711]  __do_page_fault+0x5e8/0xe60
[  258.543775]  ? trace_hardirqs_off+0xb8/0x310
[  258.548225]  do_page_fault+0xf2/0x7e0
[  258.552033]  ? vmalloc_sync_all+0x30/0x30
[  258.556181]  ? error_entry+0x70/0xd0
[  258.559896]  ? trace_hardirqs_off_caller+0xbb/0x310
[  258.564925]  ? trace_hardirqs_on_caller+0xc0/0x310
[  258.569856]  ? syscall_return_slowpath+0x5e0/0x5e0
[  258.574785]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.579628]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.584687]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  258.590146]  ? prepare_exit_to_usermode+0x291/0x3b0
[  258.595162]  ? page_fault+0x8/0x30
[  258.598723]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.603566]  ? page_fault+0x8/0x30
[  258.607114]  page_fault+0x1e/0x30
[  258.610566] RIP: 0033:0x44b69a
[  258.613770] Code: Bad RIP value.
[  258.617132] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  258.622492] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  258.629757] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  258.637034] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  258.644310] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  258.651589] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  258.658895] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  258.658909] warn_alloc_show_mem: 1 callbacks suppressed
[  258.658916] Mem-Info:
[  258.666124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  258.671497] active_anon:47227 inactive_anon:190 isolated_anon:0
[  258.671497]  active_file:11 inactive_file:14 isolated_file:0
[  258.671497]  unevictable:0 dirty:0 writeback:0 unstable:0
[  258.671497]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  258.671497]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  258.671497]  free:13756 free_pcp:235 free_cma:0
[  258.673868] Call Trace:
[  258.683259] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  258.716100]  <IRQ>
[  258.718671] 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
[  258.746172]  dump_stack+0x244/0x39d
[  258.748294] lowmem_reserve[]: 0 2818 6321 6321
[  258.774514]  ? dump_stack_print_info.cold.1+0x20/0x20
[  258.778115] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  258.782739]  warn_alloc.cold.116+0xb7/0x1bd
[  258.787892] lowmem_reserve[]: 0 0 3503 3503
[  258.815221]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  258.819518] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  258.823851]  ? lock_downgrade+0x900/0x900
[  258.828669] lowmem_reserve[]: 0 0 0 0
[  258.858100]  ? trace_hardirqs_off+0xb8/0x310
[  258.862236] 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
[  258.866045]  ? trace_hardirqs_off+0xb8/0x310
[  258.870445] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  258.883981]  __alloc_pages_slowpath+0x26e8/0x2e10
[  258.888359] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  258.903636]  ? warn_alloc+0x120/0x120
[  258.908437] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  258.923563]  ? print_usage_bug+0xc0/0xc0
[  258.927341] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  258.936179]  ? warn_alloc+0x120/0x120
[  258.940231] 269 total pagecache pages
[  258.948796]  ? warn_alloc+0x120/0x120
[  258.952581] 0 pages in swap cache
[  258.956370]  ? print_usage_bug+0xc0/0xc0
[  258.960148] Swap cache stats: add 0, delete 0, find 0/0
[  258.963592]  ? print_usage_bug+0xc0/0xc0
[  258.967658] Free swap  = 0kB
[  258.973019]  ? __lock_acquire+0x62f/0x4c20
[  258.973041]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.977073] Total swap = 0kB
[  258.980088]  ? should_fail+0x22d/0xd01
[  258.984297] 1965979 pages RAM
[  258.989834]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.992828] 0 pages HighMem/MovableOnly
[  258.996868]  ? __lock_acquire+0x62f/0x4c20
[  258.999968] 342853 pages reserved
[  259.005635]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.009583] 0 pages cma reserved
[  259.013821]  ? __lock_acquire+0x62f/0x4c20
[  259.017324] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  259.022335]  ? should_fail+0x22d/0xd01
[  259.022350]  ? find_held_lock+0x36/0x1c0
[  259.022372]  ? mark_held_locks+0x130/0x130
[  259.025783] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  259.029961]  ? mark_held_locks+0x130/0x130
[  259.036456] syz-fuzzer cpuset=/ mems_allowed=0
[  259.040330]  ? zap_class+0x640/0x640
[  259.040346]  ? zap_class+0x640/0x640
[  259.075284]  ? print_usage_bug+0xc0/0xc0
[  259.079382]  ? do_raw_spin_unlock+0xa7/0x330
[  259.084273]  ? zap_class+0x640/0x640
[  259.088035]  ? print_usage_bug+0xc0/0xc0
[  259.092096]  ? wq_watchdog_touch+0x9c/0xfe
[  259.096364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.101926]  ? check_preemption_disabled+0x48/0x280
[  259.106958]  ? __lock_is_held+0xb5/0x140
[  259.111029]  __alloc_pages_nodemask+0xa80/0xde0
[  259.115701]  ? zap_class+0x640/0x640
[  259.119425]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  259.124480]  ? find_held_lock+0x36/0x1c0
[  259.128556]  ? ____cache_alloc_node+0x1c7/0x1e0
[  259.133229]  ? lock_downgrade+0x900/0x900
[  259.137387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.142937]  cache_grow_begin+0xa5/0x8c0
[  259.147000]  ? do_raw_spin_unlock+0xa7/0x330
[  259.151418]  fallback_alloc+0x204/0x2e0
[  259.155399]  ____cache_alloc_node+0x1c7/0x1e0
[  259.159909]  kmem_cache_alloc_node+0xe3/0x730
[  259.164408]  ? ipv6_get_ifaddr+0x42e/0x620
[  259.168666]  __alloc_skb+0x119/0x770
[  259.172379]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.177660]  ? netdev_alloc_frag+0x1f0/0x1f0
[  259.182102]  ? lock_downgrade+0x900/0x900
[  259.186259]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.191799]  ? refcount_sub_and_test_checked+0x203/0x310
[  259.197256]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  259.202710]  ? addrconf_rs_timer+0x690/0x690
[  259.207133]  ndisc_alloc_skb+0x144/0x340
[  259.211202]  ndisc_send_rs+0x331/0x6e0
[  259.215095]  addrconf_rs_timer+0x314/0x690
[  259.219336]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.223587]  call_timer_fn+0x272/0x920
[  259.227508]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.231756]  ? process_timeout+0x40/0x40
[  259.235822]  ? __run_timers+0x7da/0xc70
[  259.239803]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.244296]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.248787]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.253029]  ? lockdep_hardirqs_on+0x296/0x5b0
[  259.257619]  ? trace_hardirqs_on+0xbd/0x310
[  259.261946]  ? kasan_check_read+0x11/0x20
[  259.266095]  ? __run_timers+0x7da/0xc70
[  259.270073]  ? trace_hardirqs_off_caller+0x310/0x310
[  259.275186]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.279427]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.283661]  __run_timers+0x7e5/0xc70
[  259.287476]  ? timer_fixup_init+0x70/0x70
[  259.291630]  ? lock_acquire+0x1ed/0x520
[  259.295834]  ? zap_class+0x640/0x640
[  259.299551]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.305095]  ? kasan_check_read+0x11/0x20
[  259.309245]  ? do_raw_spin_lock+0x14f/0x350
[  259.313576]  ? find_held_lock+0x36/0x1c0
[  259.317662]  ? zap_class+0x640/0x640
[  259.321383]  ? pvclock_read_flags+0x160/0x160
[  259.325881]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.331427]  ? check_preemption_disabled+0x48/0x280
[  259.336470]  ? __lock_is_held+0xb5/0x140
[  259.340554]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.346103]  ? check_preemption_disabled+0x48/0x280
[  259.351125]  run_timer_softirq+0x52/0xb0
[  259.355187]  ? rcu_read_lock_sched_held+0x14f/0x180
[  259.360578]  __do_softirq+0x308/0xb7e
[  259.364384]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  259.368880]  ? lock_downgrade+0x900/0x900
[  259.373041]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  259.378153]  ? pvclock_read_flags+0x160/0x160
[  259.382650]  ? lapic_next_event+0x5a/0x90
[  259.386800]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.392444]  ? kvm_clock_read+0x18/0x30
[  259.396421]  ? kvm_sched_clock_read+0x9/0x20
[  259.400852]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.406421]  ? check_preemption_disabled+0x48/0x280
[  259.411448]  irq_exit+0x17f/0x1c0
[  259.414911]  smp_apic_timer_interrupt+0x1cb/0x760
[  259.419756]  ? smp_call_function_single_interrupt+0x159/0x650
[  259.425640]  ? smp_call_function_single_interrupt+0x650/0x650
[  259.431526]  ? interrupt_entry+0xb5/0xc0
[  259.435593]  ? trace_hardirqs_off_caller+0xbb/0x310
[  259.440607]  ? trace_hardirqs_off_caller+0xbb/0x310
[  259.445626]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.450470]  ? trace_hardirqs_on_caller+0x310/0x310
[  259.455481]  ? trace_hardirqs_on_caller+0x310/0x310
[  259.460514]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.465368]  apic_timer_interrupt+0xf/0x20
[  259.469611]  </IRQ>
[  259.471858] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  259.476795] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  259.495743] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  259.503448] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  259.510718] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  259.517985] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  259.525253] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  259.532523] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  259.540556]  skb_clone+0x1bb/0x500
[  259.544105]  ? skb_split+0x11e0/0x11e0
[  259.548047]  ? check_preemption_disabled+0x48/0x280
[  259.553085]  ? __this_cpu_preempt_check+0x1c/0x20
[  259.557953]  ? __bpf_redirect+0x54b/0xb20
[  259.562126]  bpf_clone_redirect+0xb9/0x490
[  259.566453]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  259.571520]  ? __sched_text_start+0x8/0x8
[  259.575693]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  259.580477]  ? find_held_lock+0x36/0x1c0
[  259.584547]  ? lock_acquire+0x1ed/0x520
[  259.588527]  ? bpf_test_run+0x3cb/0x780
[  259.592507]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.598050]  ? check_preemption_disabled+0x48/0x280
[  259.603095]  ? kasan_check_read+0x11/0x20
[  259.607257]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.612538]  ? rcu_softirq_qs+0x20/0x20
[  259.616518]  ? preempt_schedule+0x4d/0x60
[  259.620697]  ? ___preempt_schedule+0x16/0x18
[  259.625133]  ? bpf_test_run+0x25d/0x780
[  259.629138]  ? netlink_diag_dump+0x2a0/0x2a0
[  259.633623]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  259.638386]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  259.643173]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  259.648019]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  259.653559]  ? fput+0x130/0x1a0
[  259.656845]  ? __bpf_prog_get+0x9b/0x290
[  259.660919]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  259.665761]  ? bpf_prog_test_run+0x130/0x1a0
[  259.670177]  ? __x64_sys_bpf+0x3d8/0x520
[  259.674248]  ? bpf_prog_get+0x20/0x20
[  259.678074]  ? do_syscall_64+0x1b9/0x820
[  259.682137]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  259.687519]  ? syscall_return_slowpath+0x5e0/0x5e0
[  259.692450]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.697297]  ? trace_hardirqs_on_caller+0x310/0x310
[  259.702317]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  259.707339]  ? prepare_exit_to_usermode+0x291/0x3b0
[  259.712364]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.717214]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  259.722601] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  259.722698] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  259.729544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  259.729552] Call Trace:
[  259.736167] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  259.745429]  <IRQ>
[  259.748016] syz-executor4 cpuset=syz4 mems_allowed=0
[  259.758496]  dump_stack+0x244/0x39d
[  259.769390]  ? dump_stack_print_info.cold.1+0x20/0x20
[  259.774604]  warn_alloc.cold.116+0xb7/0x1bd
[  259.778934]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  259.783799]  ? lock_downgrade+0x900/0x900
[  259.787952]  ? trace_hardirqs_off+0xb8/0x310
[  259.792403]  ? trace_hardirqs_off+0xb8/0x310
[  259.796816]  __alloc_pages_slowpath+0x26e8/0x2e10
[  259.801686]  ? warn_alloc+0x120/0x120
[  259.805501]  ? print_usage_bug+0xc0/0xc0
[  259.809568]  ? warn_alloc+0x120/0x120
[  259.813371]  ? warn_alloc+0x120/0x120
[  259.817177]  ? print_usage_bug+0xc0/0xc0
[  259.821266]  ? print_usage_bug+0xc0/0xc0
[  259.825327]  ? __lock_acquire+0x62f/0x4c20
[  259.829587]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.835128]  ? should_fail+0x22d/0xd01
[  259.839025]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.844128]  ? __lock_acquire+0x62f/0x4c20
[  259.848373]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.853490]  ? __lock_acquire+0x62f/0x4c20
[  259.857725]  ? should_fail+0x22d/0xd01
[  259.861610]  ? find_held_lock+0x36/0x1c0
[  259.865685]  ? mark_held_locks+0x130/0x130
[  259.869930]  ? mark_held_locks+0x130/0x130
[  259.874175]  ? zap_class+0x640/0x640
[  259.877923]  ? zap_class+0x640/0x640
[  259.881766]  ? print_usage_bug+0xc0/0xc0
[  259.885824]  ? do_raw_spin_unlock+0xa7/0x330
[  259.890237]  ? zap_class+0x640/0x640
[  259.893950]  ? print_usage_bug+0xc0/0xc0
[  259.898025]  ? wq_watchdog_touch+0x9c/0xfe
[  259.902264]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.907819]  ? check_preemption_disabled+0x48/0x280
[  259.912843]  ? __lock_is_held+0xb5/0x140
[  259.916930]  __alloc_pages_nodemask+0xa80/0xde0
[  259.921599]  ? zap_class+0x640/0x640
[  259.925316]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  259.930343]  ? find_held_lock+0x36/0x1c0
[  259.934414]  ? ____cache_alloc_node+0x1c7/0x1e0
[  259.939087]  ? lock_downgrade+0x900/0x900
[  259.943240]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.948780]  cache_grow_begin+0xa5/0x8c0
[  259.952839]  ? do_raw_spin_unlock+0xa7/0x330
[  259.957284]  fallback_alloc+0x204/0x2e0
[  259.961262]  ____cache_alloc_node+0x1c7/0x1e0
[  259.965789]  kmem_cache_alloc_node+0xe3/0x730
[  259.970319]  ? ipv6_get_ifaddr+0x42e/0x620
[  259.974562]  __alloc_skb+0x119/0x770
[  259.978285]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.983570]  ? netdev_alloc_frag+0x1f0/0x1f0
[  259.987982]  ? lock_downgrade+0x900/0x900
[  259.992139]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.997681]  ? refcount_sub_and_test_checked+0x203/0x310
[  260.003139]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  260.008588]  ? addrconf_rs_timer+0x690/0x690
[  260.013017]  ndisc_alloc_skb+0x144/0x340
[  260.017084]  ndisc_send_rs+0x331/0x6e0
[  260.020977]  addrconf_rs_timer+0x314/0x690
[  260.025240]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.029486]  call_timer_fn+0x272/0x920
[  260.033376]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.037608]  ? process_timeout+0x40/0x40
[  260.041676]  ? mark_held_locks+0xc7/0x130
[  260.045825]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.050334]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.054825]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.059074]  ? lockdep_hardirqs_on+0x296/0x5b0
[  260.063663]  ? trace_hardirqs_on+0xbd/0x310
[  260.067987]  ? kasan_check_read+0x11/0x20
[  260.072142]  ? __run_timers+0x7da/0xc70
[  260.076119]  ? trace_hardirqs_off_caller+0x310/0x310
[  260.081227]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.085467]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.089776]  __run_timers+0x7e5/0xc70
[  260.093584]  ? timer_fixup_init+0x70/0x70
[  260.097735]  ? kasan_check_read+0x11/0x20
[  260.101880]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.107173]  ? rcu_softirq_qs+0x20/0x20
[  260.111150]  ? mark_held_locks+0xc7/0x130
[  260.115302]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  260.120070]  ? retint_kernel+0x2d/0x2d
[  260.123969]  ? trace_hardirqs_on_caller+0xc0/0x310
[  260.128897]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  260.133731]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  260.139182]  ? zap_class+0x640/0x640
[  260.142924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.148491]  ? check_preemption_disabled+0x48/0x280
[  260.153515]  ? __lock_is_held+0xb5/0x140
[  260.157579]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.163118]  ? check_preemption_disabled+0x48/0x280
[  260.168174]  run_timer_softirq+0x52/0xb0
[  260.172237]  ? rcu_read_lock_sched_held+0x14f/0x180
[  260.177254]  __do_softirq+0x308/0xb7e
[  260.181060]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  260.185559]  ? lock_downgrade+0x900/0x900
[  260.189711]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  260.194839]  ? pvclock_read_flags+0x160/0x160
[  260.199368]  ? lapic_next_event+0x5a/0x90
[  260.203536]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.209080]  ? kvm_clock_read+0x18/0x30
[  260.213053]  ? kvm_sched_clock_read+0x9/0x20
[  260.217463]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.223008]  ? check_preemption_disabled+0x48/0x280
[  260.228065]  irq_exit+0x17f/0x1c0
[  260.231519]  smp_apic_timer_interrupt+0x1cb/0x760
[  260.236363]  ? smp_call_function_single_interrupt+0x650/0x650
[  260.242245]  ? interrupt_entry+0xb5/0xc0
[  260.246307]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.251340]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.256358]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.261234]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.266249]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.271367]  ? task_prio+0x50/0x50
[  260.274940]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.280476]  ? check_preemption_disabled+0x48/0x280
[  260.285495]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.290376]  apic_timer_interrupt+0xf/0x20
[  260.294602]  </IRQ>
[  260.296843] RIP: 0010:dump_stack+0x358/0x39d
[  260.301260] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  260.320158] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  260.327894] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  260.335171] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  260.342441] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  260.349705] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  260.356981] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  260.364276]  ? dump_stack+0x34f/0x39d
[  260.368093]  ? dump_stack_print_info.cold.1+0x20/0x20
[  260.373292]  ? mark_held_locks+0x130/0x130
[  260.377641]  ? mark_held_locks+0x130/0x130
[  260.381908]  dump_header+0x27b/0xf72
[  260.385638]  ? pagefault_out_of_memory+0x197/0x197
[  260.390593]  ? __lock_acquire+0x62f/0x4c20
[  260.394831]  ? percpu_ref_get_many+0x240/0x240
[  260.399418]  ? print_usage_bug+0xc0/0xc0
[  260.403488]  ? zap_class+0x640/0x640
[  260.407222]  ? print_usage_bug+0xc0/0xc0
[  260.411284]  ? print_usage_bug+0xc0/0xc0
[  260.415346]  ? zap_class+0x640/0x640
[  260.419065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.424633]  ? find_held_lock+0x36/0x1c0
[  260.428704]  ? mark_held_locks+0xc7/0x130
[  260.432851]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  260.437956]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  260.443081]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  260.447667]  ? trace_hardirqs_on+0xbd/0x310
[  260.451989]  ? kasan_check_read+0x11/0x20
[  260.456138]  ? ___ratelimit+0x3b4/0x672
[  260.460113]  ? trace_hardirqs_off_caller+0x310/0x310
[  260.465246]  ? trace_hardirqs_on+0x310/0x310
[  260.469670]  ? lock_downgrade+0x900/0x900
[  260.473839]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  260.478943]  ? ___ratelimit+0x3b9/0x672
[  260.482926]  ? idr_get_free+0xf70/0xf70
[  260.486908]  ? find_held_lock+0x36/0x1c0
[  260.490992]  oom_kill_process.cold.27+0x10/0x903
[  260.495770]  ? zap_class+0x640/0x640
[  260.499487]  ? check_preemption_disabled+0x48/0x280
[  260.504515]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.509445]  ? kasan_check_read+0x11/0x20
[  260.513590]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.518879]  ? oom_evaluate_task+0x540/0x540
[  260.523302]  ? find_held_lock+0x36/0x1c0
[  260.527389]  ? out_of_memory+0x974/0x1430
[  260.531540]  ? lock_downgrade+0x900/0x900
[  260.535686]  ? check_preemption_disabled+0x48/0x280
[  260.540730]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.545674]  ? kasan_check_read+0x11/0x20
[  260.549881]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.555174]  ? rcu_softirq_qs+0x20/0x20
[  260.559155]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.564693]  ? oom_evaluate_task+0x302/0x540
[  260.569108]  out_of_memory+0xa84/0x1430
[  260.573090]  ? oom_killer_disable+0x3a0/0x3a0
[  260.577586]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  260.582522]  ? __ww_mutex_check_waiters+0x160/0x160
[  260.587549]  __alloc_pages_slowpath+0x2354/0x2e10
[  260.592421]  ? warn_alloc+0x120/0x120
[  260.596221]  ? mark_held_locks+0x130/0x130
[  260.600463]  ? find_get_entry+0xaae/0x1120
[  260.604706]  ? filemap_map_pages+0x1a20/0x1a20
[  260.609295]  ? zap_class+0x640/0x640
[  260.613045]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.618604]  ? check_preemption_disabled+0x48/0x280
[  260.623634]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.629170]  ? should_fail+0x22d/0xd01
[  260.633059]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  260.638159]  ? zap_class+0x640/0x640
[  260.641893]  ? __lock_is_held+0xb5/0x140
[  260.645969]  ? mark_held_locks+0x130/0x130
[  260.650246]  ? lock_release+0xa00/0xa00
[  260.654225]  ? perf_trace_sched_process_exec+0x860/0x860
[  260.659673]  ? xa_load+0x2ba/0x460
[  260.663242]  ? lock_downgrade+0x900/0x900
[  260.667397]  ? __might_sleep+0x95/0x190
[  260.671378]  __alloc_pages_nodemask+0xa80/0xde0
[  260.676055]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  260.681075]  ? __page_cache_alloc+0x191/0x5c0
[  260.685600]  ? xa_load+0x2e1/0x460
[  260.689158]  ? xa_clear_mark+0x40/0x40
[  260.693049]  ? zap_class+0x640/0x640
[  260.696774]  ? zap_class+0x640/0x640
[  260.700488]  ? zap_class+0x640/0x640
[  260.704202]  ? __do_page_cache_readahead+0x663/0x810
[  260.709309]  ? find_held_lock+0x36/0x1c0
[  260.713405]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  260.718948]  alloc_pages_current+0x173/0x350
[  260.723363]  __page_cache_alloc+0x38c/0x5c0
[  260.727685]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.732634]  ? kasan_check_read+0x11/0x20
[  260.736784]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.742067]  ? generic_perform_write+0x6a0/0x6a0
[  260.746826]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.752757]  ? check_preemption_disabled+0x48/0x280
[  260.757782]  filemap_fault+0x1595/0x25f0
[  260.761856]  ? __lock_page_or_retry+0xa00/0xa00
[  260.766529]  ? mark_held_locks+0x130/0x130
[  260.770776]  ? filemap_map_pages+0xd6b/0x1a20
[  260.775276]  ? lock_downgrade+0x900/0x900
[  260.779438]  ? check_preemption_disabled+0x48/0x280
[  260.784473]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.789401]  ? kasan_check_read+0x11/0x20
[  260.793559]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.798834]  ? rcu_softirq_qs+0x20/0x20
[  260.802820]  ? filemap_map_pages+0xd92/0x1a20
[  260.807330]  ? find_get_entries_tag+0x1400/0x1400
[  260.812172]  ? find_held_lock+0x36/0x1c0
[  260.816253]  ? lock_acquire+0x1ed/0x520
[  260.820232]  ? ext4_filemap_fault+0x7a/0xad
[  260.824564]  ? lock_release+0xa00/0xa00
[  260.828539]  ? perf_trace_sched_process_exec+0x860/0x860
[  260.834012]  ? print_usage_bug+0xc0/0xc0
[  260.838081]  ? print_usage_bug+0xc0/0xc0
[  260.842156]  ? down_read+0x8d/0x120
[  260.845781]  ? ext4_filemap_fault+0x7a/0xad
[  260.850108]  ? __down_interruptible+0x700/0x700
[  260.854788]  ext4_filemap_fault+0x82/0xad
[  260.858944]  __do_fault+0x100/0x6b0
[  260.862577]  ? find_held_lock+0x36/0x1c0
[  260.866645]  ? pmd_devmap_trans_unstable+0x220/0x220
[  260.871765]  ? mark_held_locks+0x130/0x130
[  260.876051]  ? mark_held_locks+0x130/0x130
[  260.880311]  ? kasan_check_read+0x11/0x20
[  260.884479]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.890034]  __handle_mm_fault+0x3ea0/0x5be0
[  260.894457]  ? perf_trace_lock+0x7a0/0x7a0
[  260.898707]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  260.903566]  ? __switch_to_asm+0x34/0x70
[  260.907626]  ? __switch_to_asm+0x34/0x70
[  260.911703]  ? zap_class+0x640/0x640
[  260.915430]  ? zap_class+0x640/0x640
[  260.919157]  ? __x64_sys_futex+0x53e/0x6a0
[  260.923394]  ? find_held_lock+0x36/0x1c0
[  260.927466]  ? handle_mm_fault+0x42a/0xc70
[  260.931716]  ? lock_downgrade+0x900/0x900
[  260.935867]  ? check_preemption_disabled+0x48/0x280
[  260.940887]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  260.945823]  ? kasan_check_read+0x11/0x20
[  260.949969]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.955310]  ? rcu_softirq_qs+0x20/0x20
[  260.959330]  ? trace_hardirqs_off_caller+0x310/0x310
[  260.964439]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.969976]  ? check_preemption_disabled+0x48/0x280
[  260.975007]  handle_mm_fault+0x54f/0xc70
[  260.979075]  ? __handle_mm_fault+0x5be0/0x5be0
[  260.983689]  ? find_vma+0x34/0x190
[  260.987270]  __do_page_fault+0x5e8/0xe60
[  260.991327]  ? trace_hardirqs_off+0xb8/0x310
[  260.995752]  do_page_fault+0xf2/0x7e0
[  260.999584]  ? vmalloc_sync_all+0x30/0x30
[  261.003749]  ? error_entry+0x70/0xd0
[  261.007470]  ? trace_hardirqs_off_caller+0xbb/0x310
[  261.012483]  ? trace_hardirqs_on_caller+0xc0/0x310
[  261.017411]  ? syscall_return_slowpath+0x5e0/0x5e0
[  261.022381]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.027225]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.032262]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  261.037729]  ? prepare_exit_to_usermode+0x291/0x3b0
[  261.042743]  ? page_fault+0x8/0x30
[  261.046290]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.051151]  ? page_fault+0x8/0x30
[  261.054692]  page_fault+0x1e/0x30
[  261.058178] RIP: 0033:0x44b69a
[  261.061389] Code: Bad RIP value.
[  261.064746] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  261.070105] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  261.077370] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  261.084651] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  261.091934] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  261.099199] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  261.106499] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  261.106504] warn_alloc_show_mem: 1 callbacks suppressed
[  261.106514] Mem-Info:
[  261.113758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  261.119132] active_anon:47227 inactive_anon:190 isolated_anon:0
[  261.119132]  active_file:11 inactive_file:14 isolated_file:0
[  261.119132]  unevictable:0 dirty:0 writeback:0 unstable:0
[  261.119132]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  261.119132]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  261.119132]  free:13756 free_pcp:235 free_cma:0
[  261.121508] Call Trace:
[  261.130897] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  261.163742]  <IRQ>
[  261.166316] 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
[  261.193822]  dump_stack+0x244/0x39d
[  261.195943] lowmem_reserve[]: 0 2818 6321 6321
[  261.222070]  ? dump_stack_print_info.cold.1+0x20/0x20
[  261.225669] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  261.230251]  warn_alloc.cold.116+0xb7/0x1bd
[  261.235404] lowmem_reserve[]: 0 0 3503 3503
[  261.262726]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  261.267024] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  261.271339]  ? lock_downgrade+0x900/0x900
[  261.276152] lowmem_reserve[]: 0 0 0 0
[  261.305039]  ? trace_hardirqs_off+0xb8/0x310
[  261.309155] 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
[  261.312950]  ? trace_hardirqs_off+0xb8/0x310
[  261.317330] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  261.330851]  __alloc_pages_slowpath+0x26e8/0x2e10
[  261.335233] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  261.350511]  ? warn_alloc+0x120/0x120
[  261.355308] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  261.370381]  ? print_usage_bug+0xc0/0xc0
[  261.374158] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  261.374167] 269 total pagecache pages
[  261.383000]  ? warn_alloc+0x120/0x120
[  261.387052] 0 pages in swap cache
[  261.395616]  ? warn_alloc+0x120/0x120
[  261.399408] Swap cache stats: add 0, delete 0, find 0/0
[  261.403203]  ? print_usage_bug+0xc0/0xc0
[  261.406638] Free swap  = 0kB
[  261.410445]  ? kvm_clock_read+0x18/0x30
[  261.415782] Total swap = 0kB
[  261.419841]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  261.422833] 1965979 pages RAM
[  261.426826]  ? print_usage_bug+0xc0/0xc0
[  261.429830] 0 pages HighMem/MovableOnly
[  261.434841]  ? __lock_acquire+0x62f/0x4c20
[  261.437962] 342853 pages reserved
[  261.442024]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.445987] 0 pages cma reserved
[  261.450215]  ? should_fail+0x22d/0xd01
[  261.453735] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  261.459161]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.459180]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.462617] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  261.466402]  ? __lock_acquire+0x62f/0x4c20
[  261.472869] syz-fuzzer cpuset=/ mems_allowed=0
[  261.478140]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.507305]  ? __lock_acquire+0x62f/0x4c20
[  261.511553]  ? should_fail+0x22d/0xd01
[  261.515448]  ? rcu_irq_exit+0x1a2/0x390
[  261.519429]  ? mark_held_locks+0x130/0x130
[  261.523714]  ? mark_held_locks+0x130/0x130
[  261.527955]  ? mark_held_locks+0xc7/0x130
[  261.532105]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  261.537149]  ? zap_class+0x640/0x640
[  261.540864]  ? print_usage_bug+0xc0/0xc0
[  261.544943]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.550499]  ? check_preemption_disabled+0x48/0x280
[  261.555552]  ? __lock_is_held+0xb5/0x140
[  261.559623]  __alloc_pages_nodemask+0xa80/0xde0
[  261.564318]  ? zap_class+0x640/0x640
[  261.568040]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  261.573067]  ? find_held_lock+0x36/0x1c0
[  261.577145]  ? ____cache_alloc_node+0x1c7/0x1e0
[  261.581815]  ? lock_downgrade+0x900/0x900
[  261.585992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.591550]  cache_grow_begin+0xa5/0x8c0
[  261.595611]  ? do_raw_spin_unlock+0xa7/0x330
[  261.600032]  fallback_alloc+0x204/0x2e0
[  261.604016]  ____cache_alloc_node+0x1c7/0x1e0
[  261.608521]  kmem_cache_alloc_node+0xe3/0x730
[  261.613017]  ? ipv6_get_ifaddr+0x42e/0x620
[  261.617261]  __alloc_skb+0x119/0x770
[  261.620998]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.626283]  ? netdev_alloc_frag+0x1f0/0x1f0
[  261.630695]  ? lock_downgrade+0x900/0x900
[  261.634867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.640404]  ? refcount_sub_and_test_checked+0x203/0x310
[  261.645856]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  261.651327]  ? addrconf_rs_timer+0x690/0x690
[  261.655745]  ndisc_alloc_skb+0x144/0x340
[  261.659825]  ndisc_send_rs+0x331/0x6e0
[  261.663729]  addrconf_rs_timer+0x314/0x690
[  261.667971]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.672245]  call_timer_fn+0x272/0x920
[  261.676158]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.680389]  ? process_timeout+0x40/0x40
[  261.684467]  ? __run_timers+0x7da/0xc70
[  261.688444]  ? _raw_spin_unlock_irq+0x27/0x80
[  261.692938]  ? _raw_spin_unlock_irq+0x27/0x80
[  261.697447]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.701681]  ? lockdep_hardirqs_on+0x296/0x5b0
[  261.706265]  ? trace_hardirqs_on+0xbd/0x310
[  261.710588]  ? kasan_check_read+0x11/0x20
[  261.714740]  ? __run_timers+0x7da/0xc70
[  261.718716]  ? trace_hardirqs_off_caller+0x310/0x310
[  261.723824]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.728063]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  261.732321]  __run_timers+0x7e5/0xc70
[  261.736133]  ? timer_fixup_init+0x70/0x70
[  261.740285]  ? lock_acquire+0x1ed/0x520
[  261.744301]  ? zap_class+0x640/0x640
[  261.748012]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.753554]  ? kasan_check_read+0x11/0x20
[  261.757701]  ? do_raw_spin_lock+0x14f/0x350
[  261.762036]  ? find_held_lock+0x36/0x1c0
[  261.766102]  ? zap_class+0x640/0x640
[  261.769831]  ? pvclock_read_flags+0x160/0x160
[  261.774327]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.779869]  ? check_preemption_disabled+0x48/0x280
[  261.784899]  ? __lock_is_held+0xb5/0x140
[  261.789000]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.794554]  ? check_preemption_disabled+0x48/0x280
[  261.799577]  run_timer_softirq+0x52/0xb0
[  261.803638]  ? rcu_read_lock_sched_held+0x14f/0x180
[  261.808661]  __do_softirq+0x308/0xb7e
[  261.812467]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  261.816979]  ? lock_downgrade+0x900/0x900
[  261.821132]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  261.826245]  ? pvclock_read_flags+0x160/0x160
[  261.830743]  ? lapic_next_event+0x5a/0x90
[  261.834893]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.840446]  ? kvm_clock_read+0x18/0x30
[  261.844422]  ? kvm_sched_clock_read+0x9/0x20
[  261.848836]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.854381]  ? check_preemption_disabled+0x48/0x280
[  261.859421]  irq_exit+0x17f/0x1c0
[  261.862894]  smp_apic_timer_interrupt+0x1cb/0x760
[  261.867772]  ? smp_call_function_single_interrupt+0x159/0x650
[  261.873659]  ? smp_call_function_single_interrupt+0x650/0x650
[  261.879582]  ? interrupt_entry+0xb5/0xc0
[  261.884188]  ? trace_hardirqs_off_caller+0xbb/0x310
[  261.889206]  ? trace_hardirqs_off_caller+0xbb/0x310
[  261.894230]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.899077]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.904095]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.909135]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.913995]  apic_timer_interrupt+0xf/0x20
[  261.918227]  </IRQ>
[  261.920484] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  261.925459] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  261.944371] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  261.952088] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  261.959356] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  261.966622] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  261.973947] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  261.981217] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  261.988553]  skb_clone+0x1bb/0x500
[  261.992095]  ? skb_split+0x11e0/0x11e0
[  261.995986]  ? check_preemption_disabled+0x48/0x280
[  262.001010]  ? __this_cpu_preempt_check+0x1c/0x20
[  262.005873]  ? __bpf_redirect+0x54b/0xb20
[  262.010034]  bpf_clone_redirect+0xb9/0x490
[  262.014283]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  262.019419]  ? __sched_text_start+0x8/0x8
[  262.023573]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  262.028342]  ? find_held_lock+0x36/0x1c0
[  262.032663]  ? lock_acquire+0x1ed/0x520
[  262.036644]  ? bpf_test_run+0x3cb/0x780
[  262.040623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.046312]  ? check_preemption_disabled+0x48/0x280
[  262.052292]  ? kasan_check_read+0x11/0x20
[  262.056583]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.061997]  ? rcu_softirq_qs+0x20/0x20
[  262.066134]  ? preempt_schedule+0x4d/0x60
[  262.070533]  ? ___preempt_schedule+0x16/0x18
[  262.074952]  ? bpf_test_run+0x25d/0x780
[  262.078955]  ? netlink_diag_dump+0x2a0/0x2a0
[  262.083371]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  262.088139]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  262.092915]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  262.097762]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  262.103303]  ? fput+0x130/0x1a0
[  262.106599]  ? __bpf_prog_get+0x9b/0x290
[  262.110685]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  262.115527]  ? bpf_prog_test_run+0x130/0x1a0
[  262.119944]  ? __x64_sys_bpf+0x3d8/0x520
[  262.124006]  ? bpf_prog_get+0x20/0x20
[  262.127827]  ? do_syscall_64+0x1b9/0x820
[  262.131911]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  262.137277]  ? syscall_return_slowpath+0x5e0/0x5e0
[  262.142206]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.147050]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.152067]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  262.157088]  ? prepare_exit_to_usermode+0x291/0x3b0
[  262.162111]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.166966]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  262.172353] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  262.172444] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  262.179290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  262.179299] Call Trace:
[  262.185895] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  262.195179]  <IRQ>
[  262.197752] syz-executor4 cpuset=syz4 mems_allowed=0
[  262.208234]  dump_stack+0x244/0x39d
[  262.219064]  ? dump_stack_print_info.cold.1+0x20/0x20
[  262.224270]  warn_alloc.cold.116+0xb7/0x1bd
[  262.228597]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  262.233446]  ? lock_downgrade+0x900/0x900
[  262.237603]  ? trace_hardirqs_off+0xb8/0x310
[  262.242022]  ? trace_hardirqs_off+0xb8/0x310
[  262.246440]  __alloc_pages_slowpath+0x26e8/0x2e10
[  262.251327]  ? warn_alloc+0x120/0x120
[  262.255130]  ? print_usage_bug+0xc0/0xc0
[  262.259196]  ? warn_alloc+0x120/0x120
[  262.263009]  ? warn_alloc+0x120/0x120
[  262.266812]  ? print_usage_bug+0xc0/0xc0
[  262.270877]  ? kvm_clock_read+0x18/0x30
[  262.274865]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  262.279882]  ? print_usage_bug+0xc0/0xc0
[  262.283954]  ? __lock_acquire+0x62f/0x4c20
[  262.288197]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.293737]  ? should_fail+0x22d/0xd01
[  262.297623]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.302915]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  262.308029]  ? __lock_acquire+0x62f/0x4c20
[  262.312270]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  262.317376]  ? __lock_acquire+0x62f/0x4c20
[  262.321614]  ? should_fail+0x22d/0xd01
[  262.325502]  ? rcu_irq_exit+0x1a2/0x390
[  262.329485]  ? mark_held_locks+0x130/0x130
[  262.333727]  ? mark_held_locks+0x130/0x130
[  262.337977]  ? mark_held_locks+0xc7/0x130
[  262.342132]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  262.347156]  ? zap_class+0x640/0x640
[  262.350870]  ? print_usage_bug+0xc0/0xc0
[  262.354948]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.360491]  ? check_preemption_disabled+0x48/0x280
[  262.365519]  ? __lock_is_held+0xb5/0x140
[  262.369590]  __alloc_pages_nodemask+0xa80/0xde0
[  262.374265]  ? zap_class+0x640/0x640
[  262.377990]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  262.383031]  ? find_held_lock+0x36/0x1c0
[  262.387112]  ? ____cache_alloc_node+0x1c7/0x1e0
[  262.391788]  ? lock_downgrade+0x900/0x900
[  262.395952]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.401495]  cache_grow_begin+0xa5/0x8c0
[  262.405558]  ? do_raw_spin_unlock+0xa7/0x330
[  262.409975]  fallback_alloc+0x204/0x2e0
[  262.413961]  ____cache_alloc_node+0x1c7/0x1e0
[  262.418475]  kmem_cache_alloc_node+0xe3/0x730
[  262.422972]  ? ipv6_get_ifaddr+0x42e/0x620
[  262.427220]  __alloc_skb+0x119/0x770
[  262.430948]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.436229]  ? netdev_alloc_frag+0x1f0/0x1f0
[  262.440639]  ? lock_downgrade+0x900/0x900
[  262.444795]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.450335]  ? refcount_sub_and_test_checked+0x203/0x310
[  262.455800]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  262.461266]  ? addrconf_rs_timer+0x690/0x690
[  262.465690]  ndisc_alloc_skb+0x144/0x340
[  262.469761]  ndisc_send_rs+0x331/0x6e0
[  262.473656]  addrconf_rs_timer+0x314/0x690
[  262.477918]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.482168]  call_timer_fn+0x272/0x920
[  262.486058]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.490298]  ? process_timeout+0x40/0x40
[  262.494371]  ? mark_held_locks+0xc7/0x130
[  262.498523]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.503023]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.507520]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.511759]  ? lockdep_hardirqs_on+0x296/0x5b0
[  262.516373]  ? trace_hardirqs_on+0xbd/0x310
[  262.520698]  ? kasan_check_read+0x11/0x20
[  262.524842]  ? __run_timers+0x7da/0xc70
[  262.528819]  ? trace_hardirqs_off_caller+0x310/0x310
[  262.533936]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.538177]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.542444]  __run_timers+0x7e5/0xc70
[  262.546255]  ? timer_fixup_init+0x70/0x70
[  262.550407]  ? kasan_check_read+0x11/0x20
[  262.554557]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.559843]  ? rcu_softirq_qs+0x20/0x20
[  262.563838]  ? mark_held_locks+0xc7/0x130
[  262.567993]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  262.572763]  ? retint_kernel+0x2d/0x2d
[  262.576652]  ? trace_hardirqs_on_caller+0xc0/0x310
[  262.581583]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  262.586431]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  262.591889]  ? zap_class+0x640/0x640
[  262.595635]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.601207]  ? check_preemption_disabled+0x48/0x280
[  262.606252]  ? __lock_is_held+0xb5/0x140
[  262.610316]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.615854]  ? check_preemption_disabled+0x48/0x280
[  262.620898]  run_timer_softirq+0x52/0xb0
[  262.624969]  ? rcu_read_lock_sched_held+0x14f/0x180
[  262.629985]  __do_softirq+0x308/0xb7e
[  262.633794]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  262.638287]  ? lock_downgrade+0x900/0x900
[  262.642445]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  262.647557]  ? pvclock_read_flags+0x160/0x160
[  262.652080]  ? lapic_next_event+0x5a/0x90
[  262.656232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.661775]  ? kvm_clock_read+0x18/0x30
[  262.665747]  ? kvm_sched_clock_read+0x9/0x20
[  262.670161]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.675714]  ? check_preemption_disabled+0x48/0x280
[  262.680741]  irq_exit+0x17f/0x1c0
[  262.684201]  smp_apic_timer_interrupt+0x1cb/0x760
[  262.689047]  ? smp_call_function_single_interrupt+0x650/0x650
[  262.694941]  ? interrupt_entry+0xb5/0xc0
[  262.699014]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.704039]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.709063]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.713916]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.718940]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.723954]  ? task_prio+0x50/0x50
[  262.727496]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.733038]  ? check_preemption_disabled+0x48/0x280
[  262.738063]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.742925]  apic_timer_interrupt+0xf/0x20
[  262.747154]  </IRQ>
[  262.749413] RIP: 0010:dump_stack+0x358/0x39d
[  262.754240] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  262.773142] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  262.781079] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  262.788363] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  262.795632] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  262.802919] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  262.810189] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  262.817485]  ? dump_stack+0x34f/0x39d
[  262.821306]  ? dump_stack_print_info.cold.1+0x20/0x20
[  262.826502]  ? mark_held_locks+0x130/0x130
[  262.830742]  ? mark_held_locks+0x130/0x130
[  262.835000]  dump_header+0x27b/0xf72
[  262.838737]  ? pagefault_out_of_memory+0x197/0x197
[  262.843675]  ? __lock_acquire+0x62f/0x4c20
[  262.847935]  ? percpu_ref_get_many+0x240/0x240
[  262.852523]  ? print_usage_bug+0xc0/0xc0
[  262.856595]  ? zap_class+0x640/0x640
[  262.860318]  ? print_usage_bug+0xc0/0xc0
[  262.864382]  ? print_usage_bug+0xc0/0xc0
[  262.868444]  ? zap_class+0x640/0x640
[  262.872164]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.877709]  ? find_held_lock+0x36/0x1c0
[  262.881782]  ? mark_held_locks+0xc7/0x130
[  262.885958]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  262.891062]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  262.896168]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  262.900757]  ? trace_hardirqs_on+0xbd/0x310
[  262.905082]  ? kasan_check_read+0x11/0x20
[  262.909230]  ? ___ratelimit+0x3b4/0x672
[  262.913208]  ? trace_hardirqs_off_caller+0x310/0x310
[  262.918314]  ? trace_hardirqs_on+0x310/0x310
[  262.922725]  ? lock_downgrade+0x900/0x900
[  262.926878]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  262.932025]  ? ___ratelimit+0x3b9/0x672
[  262.935999]  ? idr_get_free+0xf70/0xf70
[  262.939977]  ? find_held_lock+0x36/0x1c0
[  262.944068]  oom_kill_process.cold.27+0x10/0x903
[  262.948825]  ? zap_class+0x640/0x640
[  262.952545]  ? check_preemption_disabled+0x48/0x280
[  262.957563]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.962494]  ? kasan_check_read+0x11/0x20
[  262.966641]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.971930]  ? oom_evaluate_task+0x540/0x540
[  262.976344]  ? find_held_lock+0x36/0x1c0
[  262.980412]  ? out_of_memory+0x974/0x1430
[  262.984564]  ? lock_downgrade+0x900/0x900
[  262.988714]  ? check_preemption_disabled+0x48/0x280
[  262.993734]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  262.998692]  ? kasan_check_read+0x11/0x20
[  263.002836]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.008148]  ? rcu_softirq_qs+0x20/0x20
[  263.012142]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.017682]  ? oom_evaluate_task+0x302/0x540
[  263.022098]  out_of_memory+0xa84/0x1430
[  263.026085]  ? oom_killer_disable+0x3a0/0x3a0
[  263.030679]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  263.035615]  ? __ww_mutex_check_waiters+0x160/0x160
[  263.040647]  __alloc_pages_slowpath+0x2354/0x2e10
[  263.045521]  ? warn_alloc+0x120/0x120
[  263.049325]  ? mark_held_locks+0x130/0x130
[  263.053572]  ? find_get_entry+0xaae/0x1120
[  263.057818]  ? filemap_map_pages+0x1a20/0x1a20
[  263.062408]  ? zap_class+0x640/0x640
[  263.066130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.071673]  ? check_preemption_disabled+0x48/0x280
[  263.076688]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.082226]  ? should_fail+0x22d/0xd01
[  263.086120]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.091227]  ? zap_class+0x640/0x640
[  263.094968]  ? __lock_is_held+0xb5/0x140
[  263.099042]  ? mark_held_locks+0x130/0x130
[  263.103297]  ? lock_release+0xa00/0xa00
[  263.107276]  ? perf_trace_sched_process_exec+0x860/0x860
[  263.112731]  ? xa_load+0x2ba/0x460
[  263.116275]  ? lock_downgrade+0x900/0x900
[  263.120431]  ? __might_sleep+0x95/0x190
[  263.124411]  __alloc_pages_nodemask+0xa80/0xde0
[  263.129093]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  263.134114]  ? __page_cache_alloc+0x191/0x5c0
[  263.138608]  ? xa_load+0x2e1/0x460
[  263.142149]  ? xa_clear_mark+0x40/0x40
[  263.146042]  ? zap_class+0x640/0x640
[  263.149765]  ? zap_class+0x640/0x640
[  263.153480]  ? zap_class+0x640/0x640
[  263.157194]  ? __do_page_cache_readahead+0x663/0x810
[  263.162321]  ? find_held_lock+0x36/0x1c0
[  263.166390]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  263.171944]  alloc_pages_current+0x173/0x350
[  263.176364]  __page_cache_alloc+0x38c/0x5c0
[  263.180686]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.185620]  ? kasan_check_read+0x11/0x20
[  263.189771]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.195052]  ? generic_perform_write+0x6a0/0x6a0
[  263.199818]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.205359]  ? check_preemption_disabled+0x48/0x280
[  263.210391]  filemap_fault+0x1595/0x25f0
[  263.214472]  ? __lock_page_or_retry+0xa00/0xa00
[  263.219976]  ? mark_held_locks+0x130/0x130
[  263.224227]  ? filemap_map_pages+0xd6b/0x1a20
[  263.228725]  ? lock_downgrade+0x900/0x900
[  263.232878]  ? check_preemption_disabled+0x48/0x280
[  263.237914]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.242847]  ? kasan_check_read+0x11/0x20
[  263.246995]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.252279]  ? rcu_softirq_qs+0x20/0x20
[  263.256268]  ? filemap_map_pages+0xd92/0x1a20
[  263.260781]  ? find_get_entries_tag+0x1400/0x1400
[  263.265685]  ? find_held_lock+0x36/0x1c0
[  263.269767]  ? lock_acquire+0x1ed/0x520
[  263.273747]  ? ext4_filemap_fault+0x7a/0xad
[  263.278075]  ? lock_release+0xa00/0xa00
[  263.282048]  ? perf_trace_sched_process_exec+0x860/0x860
[  263.287499]  ? print_usage_bug+0xc0/0xc0
[  263.291561]  ? print_usage_bug+0xc0/0xc0
[  263.295638]  ? down_read+0x8d/0x120
[  263.299265]  ? ext4_filemap_fault+0x7a/0xad
[  263.303588]  ? __down_interruptible+0x700/0x700
[  263.308267]  ext4_filemap_fault+0x82/0xad
[  263.312421]  __do_fault+0x100/0x6b0
[  263.316051]  ? find_held_lock+0x36/0x1c0
[  263.320118]  ? pmd_devmap_trans_unstable+0x220/0x220
[  263.325227]  ? mark_held_locks+0x130/0x130
[  263.329467]  ? mark_held_locks+0x130/0x130
[  263.333716]  ? kasan_check_read+0x11/0x20
[  263.337868]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.343417]  __handle_mm_fault+0x3ea0/0x5be0
[  263.347826]  ? perf_trace_lock+0x7a0/0x7a0
[  263.352070]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  263.356931]  ? __switch_to_asm+0x34/0x70
[  263.360994]  ? __switch_to_asm+0x34/0x70
[  263.365087]  ? zap_class+0x640/0x640
[  263.368804]  ? zap_class+0x640/0x640
[  263.372542]  ? __x64_sys_futex+0x53e/0x6a0
[  263.376782]  ? find_held_lock+0x36/0x1c0
[  263.380855]  ? handle_mm_fault+0x42a/0xc70
[  263.385095]  ? lock_downgrade+0x900/0x900
[  263.389248]  ? check_preemption_disabled+0x48/0x280
[  263.394275]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.399213]  ? kasan_check_read+0x11/0x20
[  263.403360]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.408640]  ? rcu_softirq_qs+0x20/0x20
[  263.412615]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.417748]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.423290]  ? check_preemption_disabled+0x48/0x280
[  263.428315]  handle_mm_fault+0x54f/0xc70
[  263.432386]  ? __handle_mm_fault+0x5be0/0x5be0
[  263.436974]  ? find_vma+0x34/0x190
[  263.440523]  __do_page_fault+0x5e8/0xe60
[  263.444586]  ? trace_hardirqs_off+0xb8/0x310
[  263.449008]  do_page_fault+0xf2/0x7e0
[  263.452812]  ? vmalloc_sync_all+0x30/0x30
[  263.456966]  ? error_entry+0x70/0xd0
[  263.460681]  ? trace_hardirqs_off_caller+0xbb/0x310
[  263.465694]  ? trace_hardirqs_on_caller+0xc0/0x310
[  263.470626]  ? syscall_return_slowpath+0x5e0/0x5e0
[  263.475557]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.480403]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.485434]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  263.490888]  ? prepare_exit_to_usermode+0x291/0x3b0
[  263.495918]  ? page_fault+0x8/0x30
[  263.499462]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.504309]  ? page_fault+0x8/0x30
[  263.507852]  page_fault+0x1e/0x30
[  263.511304] RIP: 0033:0x44b69a
[  263.514518] Code: Bad RIP value.
[  263.517880] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  263.523250] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  263.530515] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  263.537787] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  263.545056] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  263.552322] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  263.559618] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  263.559624] warn_alloc_show_mem: 1 callbacks suppressed
[  263.559631] Mem-Info:
[  263.566827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  263.566836] Call Trace:
[  263.572213] active_anon:47227 inactive_anon:190 isolated_anon:0
[  263.572213]  active_file:11 inactive_file:14 isolated_file:0
[  263.572213]  unevictable:0 dirty:0 writeback:0 unstable:0
[  263.572213]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  263.572213]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  263.572213]  free:13756 free_pcp:235 free_cma:0
[  263.574586]  <IRQ>
[  263.583953] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  263.586538]  dump_stack+0x244/0x39d
[  263.619389] 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
[  263.621541]  ? dump_stack_print_info.cold.1+0x20/0x20
[  263.649034] lowmem_reserve[]: 0 2818 6321 6321
[  263.652672]  warn_alloc.cold.116+0xb7/0x1bd
[  263.678749] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  263.683943]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  263.688494] lowmem_reserve[]: 0 0 3503 3503
[  263.692840]  ? lock_downgrade+0x900/0x900
[  263.720137] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  263.724984]  ? trace_hardirqs_off+0xb8/0x310
[  263.729277] lowmem_reserve[]: 0 0 0 0
[  263.733423]  ? trace_hardirqs_off+0xb8/0x310
[  263.762304] 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
[  263.766731]  __alloc_pages_slowpath+0x26e8/0x2e10
[  263.770503] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  263.774940]  ? warn_alloc+0x120/0x120
[  263.788413] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  263.793254]  ? print_usage_bug+0xc0/0xc0
[  263.808492] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  263.812289]  ? warn_alloc+0x120/0x120
[  263.827353] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  263.831403]  ? warn_alloc+0x120/0x120
[  263.840211] 269 total pagecache pages
[  263.844007]  ? print_usage_bug+0xc0/0xc0
[  263.852568] 0 pages in swap cache
[  263.856354]  ? kvm_clock_read+0x18/0x30
[  263.860125] Swap cache stats: add 0, delete 0, find 0/0
[  263.860134] Free swap  = 0kB
[  263.864193]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  263.867622] Total swap = 0kB
[  263.871604]  ? print_usage_bug+0xc0/0xc0
[  263.876945] 1965979 pages RAM
[  263.879959]  ? __lock_acquire+0x62f/0x4c20
[  263.885057] 0 pages HighMem/MovableOnly
[  263.885066] 342853 pages reserved
[  263.888087]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.892125] 0 pages cma reserved
[  263.895230]  ? should_fail+0x22d/0xd01
[  263.899510] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  263.903399]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.903418]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.903435]  ? __lock_acquire+0x62f/0x4c20
[  263.907653] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  263.912436]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.915779] syz-fuzzer cpuset=/ mems_allowed=0
[  263.919655]  ? __lock_acquire+0x62f/0x4c20
[  263.919671]  ? should_fail+0x22d/0xd01
[  263.968678]  ? rcu_irq_exit+0x1a2/0x390
[  263.972662]  ? mark_held_locks+0x130/0x130
[  263.976924]  ? mark_held_locks+0x130/0x130
[  263.981165]  ? mark_held_locks+0xc7/0x130
[  263.985329]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  263.990362]  ? zap_class+0x640/0x640
[  263.994075]  ? print_usage_bug+0xc0/0xc0
[  263.998142]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.003680]  ? check_preemption_disabled+0x48/0x280
[  264.008708]  ? __lock_is_held+0xb5/0x140
[  264.012787]  __alloc_pages_nodemask+0xa80/0xde0
[  264.017458]  ? zap_class+0x640/0x640
[  264.021204]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  264.026234]  ? find_held_lock+0x36/0x1c0
[  264.030304]  ? ____cache_alloc_node+0x1c7/0x1e0
[  264.034985]  ? lock_downgrade+0x900/0x900
[  264.039155]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.044700]  cache_grow_begin+0xa5/0x8c0
[  264.048774]  ? do_raw_spin_unlock+0xa7/0x330
[  264.053190]  fallback_alloc+0x204/0x2e0
[  264.057186]  ____cache_alloc_node+0x1c7/0x1e0
[  264.061691]  kmem_cache_alloc_node+0xe3/0x730
[  264.066189]  ? ipv6_get_ifaddr+0x42e/0x620
[  264.070433]  __alloc_skb+0x119/0x770
[  264.074148]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.079430]  ? netdev_alloc_frag+0x1f0/0x1f0
[  264.083851]  ? lock_downgrade+0x900/0x900
[  264.088006]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.093544]  ? refcount_sub_and_test_checked+0x203/0x310
[  264.098997]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  264.104451]  ? addrconf_rs_timer+0x690/0x690
[  264.108873]  ndisc_alloc_skb+0x144/0x340
[  264.112950]  ndisc_send_rs+0x331/0x6e0
[  264.116842]  addrconf_rs_timer+0x314/0x690
[  264.121081]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.125327]  call_timer_fn+0x272/0x920
[  264.129225]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.133460]  ? process_timeout+0x40/0x40
[  264.137545]  ? __run_timers+0x7da/0xc70
[  264.141538]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.146046]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.150544]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.154778]  ? lockdep_hardirqs_on+0x296/0x5b0
[  264.159386]  ? trace_hardirqs_on+0xbd/0x310
[  264.163712]  ? kasan_check_read+0x11/0x20
[  264.167857]  ? __run_timers+0x7da/0xc70
[  264.171834]  ? trace_hardirqs_off_caller+0x310/0x310
[  264.176947]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.181190]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.185425]  __run_timers+0x7e5/0xc70
[  264.189238]  ? timer_fixup_init+0x70/0x70
[  264.193387]  ? lock_acquire+0x1ed/0x520
[  264.197364]  ? zap_class+0x640/0x640
[  264.201099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.206657]  ? kasan_check_read+0x11/0x20
[  264.210805]  ? do_raw_spin_lock+0x14f/0x350
[  264.215147]  ? find_held_lock+0x36/0x1c0
[  264.219211]  ? zap_class+0x640/0x640
[  264.222940]  ? pvclock_read_flags+0x160/0x160
[  264.227441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.232983]  ? check_preemption_disabled+0x48/0x280
[  264.238013]  ? __lock_is_held+0xb5/0x140
[  264.242078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.247617]  ? check_preemption_disabled+0x48/0x280
[  264.252640]  run_timer_softirq+0x52/0xb0
[  264.256700]  ? rcu_read_lock_sched_held+0x14f/0x180
[  264.261735]  __do_softirq+0x308/0xb7e
[  264.265556]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  264.270050]  ? lock_downgrade+0x900/0x900
[  264.274205]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  264.279318]  ? pvclock_read_flags+0x160/0x160
[  264.283844]  ? lapic_next_event+0x5a/0x90
[  264.288014]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.293570]  ? kvm_clock_read+0x18/0x30
[  264.297547]  ? kvm_sched_clock_read+0x9/0x20
[  264.301953]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.307493]  ? check_preemption_disabled+0x48/0x280
[  264.312539]  irq_exit+0x17f/0x1c0
[  264.315998]  smp_apic_timer_interrupt+0x1cb/0x760
[  264.320854]  ? smp_call_function_single_interrupt+0x159/0x650
[  264.326739]  ? smp_call_function_single_interrupt+0x650/0x650
[  264.332634]  ? interrupt_entry+0xb5/0xc0
[  264.336725]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.341772]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.346791]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.351634]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.356647]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.361679]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.366533]  apic_timer_interrupt+0xf/0x20
[  264.370760]  </IRQ>
[  264.373002] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  264.377938] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  264.396841] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  264.404547] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  264.411813] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  264.419113] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  264.426390] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  264.433674] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  264.441014]  skb_clone+0x1bb/0x500
[  264.444557]  ? skb_split+0x11e0/0x11e0
[  264.448464]  ? check_preemption_disabled+0x48/0x280
[  264.453484]  ? __this_cpu_preempt_check+0x1c/0x20
[  264.458330]  ? __bpf_redirect+0x54b/0xb20
[  264.462485]  bpf_clone_redirect+0xb9/0x490
[  264.466739]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  264.471763]  ? __sched_text_start+0x8/0x8
[  264.475922]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  264.480696]  ? find_held_lock+0x36/0x1c0
[  264.484770]  ? lock_acquire+0x1ed/0x520
[  264.488746]  ? bpf_test_run+0x3cb/0x780
[  264.492730]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.498269]  ? check_preemption_disabled+0x48/0x280
[  264.503297]  ? kasan_check_read+0x11/0x20
[  264.507445]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.512723]  ? rcu_softirq_qs+0x20/0x20
[  264.516698]  ? preempt_schedule+0x4d/0x60
[  264.520853]  ? ___preempt_schedule+0x16/0x18
[  264.525269]  ? bpf_test_run+0x25d/0x780
[  264.529256]  ? netlink_diag_dump+0x2a0/0x2a0
[  264.533672]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  264.538431]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  264.543245]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  264.548104]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  264.553642]  ? fput+0x130/0x1a0
[  264.556941]  ? __bpf_prog_get+0x9b/0x290
[  264.561035]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  264.565879]  ? bpf_prog_test_run+0x130/0x1a0
[  264.570294]  ? __x64_sys_bpf+0x3d8/0x520
[  264.574352]  ? bpf_prog_get+0x20/0x20
[  264.578171]  ? do_syscall_64+0x1b9/0x820
[  264.582232]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  264.587594]  ? syscall_return_slowpath+0x5e0/0x5e0
[  264.592525]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.597368]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.602381]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  264.607400]  ? prepare_exit_to_usermode+0x291/0x3b0
[  264.612423]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.617269]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  264.622668] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  264.622759] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  264.629617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  264.629626] Call Trace:
[  264.636232] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  264.645472]  <IRQ>
[  264.648059] syz-executor4 cpuset=syz4 mems_allowed=0
[  264.658543]  dump_stack+0x244/0x39d
[  264.669390]  ? dump_stack_print_info.cold.1+0x20/0x20
[  264.674610]  warn_alloc.cold.116+0xb7/0x1bd
[  264.678940]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  264.683788]  ? lock_downgrade+0x900/0x900
[  264.687963]  ? trace_hardirqs_off+0xb8/0x310
[  264.692394]  ? trace_hardirqs_off+0xb8/0x310
[  264.696811]  __alloc_pages_slowpath+0x26e8/0x2e10
[  264.701683]  ? warn_alloc+0x120/0x120
[  264.705493]  ? warn_alloc+0x120/0x120
[  264.709301]  ? warn_alloc+0x120/0x120
[  264.713149]  ? __bpf_trace_xdp_cpumap_enqueue+0x40/0x40
[  264.718571]  ? print_usage_bug+0xc0/0xc0
[  264.722628]  ? is_bpf_text_address+0xac/0x170
[  264.727162]  ? print_usage_bug+0xc0/0xc0
[  264.731247]  ? kasan_check_read+0x11/0x20
[  264.735396]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.740941]  ? should_fail+0x22d/0xd01
[  264.744857]  ? rcu_softirq_qs+0x20/0x20
[  264.748836]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.754333]  ? __lock_acquire+0x62f/0x4c20
[  264.758577]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.763698]  ? __lock_acquire+0x62f/0x4c20
[  264.767946]  ? should_fail+0x22d/0xd01
[  264.771845]  ? mark_held_locks+0x130/0x130
[  264.776089]  ? mark_held_locks+0x130/0x130
[  264.780324]  ? try_to_wake_up+0x11c/0x1490
[  264.784559]  ? lock_downgrade+0x900/0x900
[  264.788708]  ? save_stack_trace+0x1a/0x20
[  264.792858]  ? zap_class+0x640/0x640
[  264.796572]  ? print_usage_bug+0xc0/0xc0
[  264.800640]  ? trace_hardirqs_off+0xb8/0x310
[  264.805088]  ? kasan_check_read+0x11/0x20
[  264.809239]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.814780]  ? check_preemption_disabled+0x48/0x280
[  264.819825]  ? __lock_is_held+0xb5/0x140
[  264.823892]  __alloc_pages_nodemask+0xa80/0xde0
[  264.828571]  ? zap_class+0x640/0x640
[  264.832292]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  264.837321]  ? find_held_lock+0x36/0x1c0
[  264.841394]  ? ____cache_alloc_node+0x1c7/0x1e0
[  264.846064]  ? lock_downgrade+0x900/0x900
[  264.850248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.855794]  cache_grow_begin+0xa5/0x8c0
[  264.859854]  ? do_raw_spin_unlock+0xa7/0x330
[  264.864269]  fallback_alloc+0x204/0x2e0
[  264.868252]  ____cache_alloc_node+0x1c7/0x1e0
[  264.872765]  kmem_cache_alloc_node+0xe3/0x730
[  264.877276]  ? ipv6_get_ifaddr+0x42e/0x620
[  264.881569]  __alloc_skb+0x119/0x770
[  264.885280]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.890575]  ? netdev_alloc_frag+0x1f0/0x1f0
[  264.894984]  ? lock_downgrade+0x900/0x900
[  264.899157]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.904700]  ? refcount_sub_and_test_checked+0x203/0x310
[  264.910154]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  264.915622]  ? addrconf_rs_timer+0x690/0x690
[  264.920051]  ndisc_alloc_skb+0x144/0x340
[  264.924118]  ndisc_send_rs+0x331/0x6e0
[  264.928018]  addrconf_rs_timer+0x314/0x690
[  264.932288]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.936544]  call_timer_fn+0x272/0x920
[  264.940572]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.944844]  ? process_timeout+0x40/0x40
[  264.948922]  ? mark_held_locks+0xc7/0x130
[  264.953076]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.957571]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.962067]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.966302]  ? lockdep_hardirqs_on+0x296/0x5b0
[  264.970890]  ? trace_hardirqs_on+0xbd/0x310
[  264.975248]  ? kasan_check_read+0x11/0x20
[  264.979410]  ? __run_timers+0x7da/0xc70
[  264.983400]  ? trace_hardirqs_off_caller+0x310/0x310
[  264.988511]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.992773]  __run_timers+0x7e5/0xc70
[  264.996622]  ? timer_fixup_init+0x70/0x70
[  265.000794]  ? kasan_check_read+0x11/0x20
[  265.004942]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.010230]  ? rcu_softirq_qs+0x20/0x20
[  265.014218]  ? mark_held_locks+0xc7/0x130
[  265.018371]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  265.023134]  ? retint_kernel+0x2d/0x2d
[  265.027027]  ? trace_hardirqs_on_caller+0xc0/0x310
[  265.031964]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  265.036724]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  265.042180]  ? zap_class+0x640/0x640
[  265.045912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.051452]  ? check_preemption_disabled+0x48/0x280
[  265.056482]  ? __lock_is_held+0xb5/0x140
[  265.060547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.066085]  ? check_preemption_disabled+0x48/0x280
[  265.071111]  run_timer_softirq+0x52/0xb0
[  265.075179]  ? rcu_read_lock_sched_held+0x14f/0x180
[  265.080197]  __do_softirq+0x308/0xb7e
[  265.084008]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  265.088500]  ? lock_downgrade+0x900/0x900
[  265.092668]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  265.097798]  ? pvclock_read_flags+0x160/0x160
[  265.102311]  ? lapic_next_event+0x5a/0x90
[  265.106475]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.112024]  ? kvm_clock_read+0x18/0x30
[  265.115999]  ? kvm_sched_clock_read+0x9/0x20
[  265.120427]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.125966]  ? check_preemption_disabled+0x48/0x280
[  265.131014]  irq_exit+0x17f/0x1c0
[  265.134474]  smp_apic_timer_interrupt+0x1cb/0x760
[  265.139324]  ? smp_call_function_single_interrupt+0x650/0x650
[  265.145207]  ? interrupt_entry+0xb5/0xc0
[  265.149271]  ? trace_hardirqs_off_caller+0xbb/0x310
[  265.154285]  ? trace_hardirqs_off_caller+0xbb/0x310
[  265.159303]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.164146]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.169160]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.174179]  ? task_prio+0x50/0x50
[  265.177726]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.183271]  ? check_preemption_disabled+0x48/0x280
[  265.188295]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.193146]  apic_timer_interrupt+0xf/0x20
[  265.197375]  </IRQ>
[  265.199618] RIP: 0010:dump_stack+0x358/0x39d
[  265.204035] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  265.222935] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  265.230646] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  265.237920] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  265.245188] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  265.252452] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  265.259718] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  265.267014]  ? dump_stack+0x34f/0x39d
[  265.270829]  ? dump_stack_print_info.cold.1+0x20/0x20
[  265.276030]  ? mark_held_locks+0x130/0x130
[  265.280263]  ? mark_held_locks+0x130/0x130
[  265.284504]  dump_header+0x27b/0xf72
[  265.288234]  ? pagefault_out_of_memory+0x197/0x197
[  265.293172]  ? __lock_acquire+0x62f/0x4c20
[  265.297410]  ? percpu_ref_get_many+0x240/0x240
[  265.301994]  ? print_usage_bug+0xc0/0xc0
[  265.306082]  ? zap_class+0x640/0x640
[  265.309813]  ? print_usage_bug+0xc0/0xc0
[  265.313880]  ? print_usage_bug+0xc0/0xc0
[  265.317948]  ? zap_class+0x640/0x640
[  265.321668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.327208]  ? find_held_lock+0x36/0x1c0
[  265.331294]  ? mark_held_locks+0xc7/0x130
[  265.335445]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  265.340547]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  265.345653]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  265.350240]  ? trace_hardirqs_on+0xbd/0x310
[  265.354564]  ? kasan_check_read+0x11/0x20
[  265.358714]  ? ___ratelimit+0x3b4/0x672
[  265.362691]  ? trace_hardirqs_off_caller+0x310/0x310
[  265.367815]  ? trace_hardirqs_on+0x310/0x310
[  265.372225]  ? lock_downgrade+0x900/0x900
[  265.376403]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  265.381511]  ? ___ratelimit+0x3b9/0x672
[  265.385491]  ? idr_get_free+0xf70/0xf70
[  265.389466]  ? find_held_lock+0x36/0x1c0
[  265.393555]  oom_kill_process.cold.27+0x10/0x903
[  265.398310]  ? zap_class+0x640/0x640
[  265.402046]  ? check_preemption_disabled+0x48/0x280
[  265.407068]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.411999]  ? kasan_check_read+0x11/0x20
[  265.416153]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.421432]  ? oom_evaluate_task+0x540/0x540
[  265.425844]  ? find_held_lock+0x36/0x1c0
[  265.429938]  ? out_of_memory+0x974/0x1430
[  265.434210]  ? lock_downgrade+0x900/0x900
[  265.438364]  ? check_preemption_disabled+0x48/0x280
[  265.443382]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.448316]  ? kasan_check_read+0x11/0x20
[  265.452477]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.457761]  ? rcu_softirq_qs+0x20/0x20
[  265.461741]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.467277]  ? oom_evaluate_task+0x302/0x540
[  265.471689]  out_of_memory+0xa84/0x1430
[  265.475673]  ? oom_killer_disable+0x3a0/0x3a0
[  265.480169]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  265.485122]  ? __ww_mutex_check_waiters+0x160/0x160
[  265.490157]  __alloc_pages_slowpath+0x2354/0x2e10
[  265.495037]  ? warn_alloc+0x120/0x120
[  265.498858]  ? mark_held_locks+0x130/0x130
[  265.503124]  ? find_get_entry+0xaae/0x1120
[  265.507369]  ? filemap_map_pages+0x1a20/0x1a20
[  265.511960]  ? zap_class+0x640/0x640
[  265.515681]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.521222]  ? check_preemption_disabled+0x48/0x280
[  265.526242]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.531780]  ? should_fail+0x22d/0xd01
[  265.535673]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.540778]  ? zap_class+0x640/0x640
[  265.544526]  ? __lock_is_held+0xb5/0x140
[  265.548597]  ? mark_held_locks+0x130/0x130
[  265.552864]  ? lock_release+0xa00/0xa00
[  265.556843]  ? perf_trace_sched_process_exec+0x860/0x860
[  265.562296]  ? xa_load+0x2ba/0x460
[  265.565843]  ? lock_downgrade+0x900/0x900
[  265.569993]  ? __might_sleep+0x95/0x190
[  265.573995]  __alloc_pages_nodemask+0xa80/0xde0
[  265.578695]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  265.583717]  ? __page_cache_alloc+0x191/0x5c0
[  265.588209]  ? xa_load+0x2e1/0x460
[  265.591757]  ? xa_clear_mark+0x40/0x40
[  265.595666]  ? zap_class+0x640/0x640
[  265.599425]  ? zap_class+0x640/0x640
[  265.603137]  ? zap_class+0x640/0x640
[  265.606850]  ? __do_page_cache_readahead+0x663/0x810
[  265.611985]  ? find_held_lock+0x36/0x1c0
[  265.616060]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  265.621613]  alloc_pages_current+0x173/0x350
[  265.626047]  __page_cache_alloc+0x38c/0x5c0
[  265.630371]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.635305]  ? kasan_check_read+0x11/0x20
[  265.639481]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.644762]  ? generic_perform_write+0x6a0/0x6a0
[  265.649531]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.655078]  ? check_preemption_disabled+0x48/0x280
[  265.660103]  filemap_fault+0x1595/0x25f0
[  265.664178]  ? __lock_page_or_retry+0xa00/0xa00
[  265.668852]  ? mark_held_locks+0x130/0x130
[  265.673097]  ? filemap_map_pages+0xd6b/0x1a20
[  265.677601]  ? lock_downgrade+0x900/0x900
[  265.681748]  ? check_preemption_disabled+0x48/0x280
[  265.686771]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.691701]  ? kasan_check_read+0x11/0x20
[  265.695852]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.701131]  ? rcu_softirq_qs+0x20/0x20
[  265.705121]  ? filemap_map_pages+0xd92/0x1a20
[  265.709630]  ? find_get_entries_tag+0x1400/0x1400
[  265.714474]  ? find_held_lock+0x36/0x1c0
[  265.718554]  ? lock_acquire+0x1ed/0x520
[  265.722531]  ? ext4_filemap_fault+0x7a/0xad
[  265.726860]  ? lock_release+0xa00/0xa00
[  265.730838]  ? perf_trace_sched_process_exec+0x860/0x860
[  265.736295]  ? print_usage_bug+0xc0/0xc0
[  265.740359]  ? print_usage_bug+0xc0/0xc0
[  265.744433]  ? down_read+0x8d/0x120
[  265.748059]  ? ext4_filemap_fault+0x7a/0xad
[  265.752387]  ? __down_interruptible+0x700/0x700
[  265.757069]  ext4_filemap_fault+0x82/0xad
[  265.761224]  __do_fault+0x100/0x6b0
[  265.764852]  ? find_held_lock+0x36/0x1c0
[  265.768938]  ? pmd_devmap_trans_unstable+0x220/0x220
[  265.774048]  ? mark_held_locks+0x130/0x130
[  265.778286]  ? mark_held_locks+0x130/0x130
[  265.782540]  ? kasan_check_read+0x11/0x20
[  265.786693]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.792238]  __handle_mm_fault+0x3ea0/0x5be0
[  265.796644]  ? perf_trace_lock+0x7a0/0x7a0
[  265.800886]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  265.805745]  ? __switch_to_asm+0x34/0x70
[  265.809802]  ? __switch_to_asm+0x34/0x70
[  265.813875]  ? zap_class+0x640/0x640
[  265.817594]  ? zap_class+0x640/0x640
[  265.821308]  ? __x64_sys_futex+0x53e/0x6a0
[  265.825550]  ? find_held_lock+0x36/0x1c0
[  265.829619]  ? handle_mm_fault+0x42a/0xc70
[  265.833858]  ? lock_downgrade+0x900/0x900
[  265.838019]  ? check_preemption_disabled+0x48/0x280
[  265.843045]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  265.847977]  ? kasan_check_read+0x11/0x20
[  265.852129]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.857403]  ? rcu_softirq_qs+0x20/0x20
[  265.861397]  ? trace_hardirqs_off_caller+0x310/0x310
[  265.866505]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.872045]  ? check_preemption_disabled+0x48/0x280
[  265.877071]  handle_mm_fault+0x54f/0xc70
[  265.881171]  ? __handle_mm_fault+0x5be0/0x5be0
[  265.885750]  ? find_vma+0x34/0x190
[  265.889320]  __do_page_fault+0x5e8/0xe60
[  265.893376]  ? trace_hardirqs_off+0xb8/0x310
[  265.897813]  do_page_fault+0xf2/0x7e0
[  265.901634]  ? vmalloc_sync_all+0x30/0x30
[  265.905812]  ? error_entry+0x70/0xd0
[  265.909526]  ? trace_hardirqs_off_caller+0xbb/0x310
[  265.914558]  ? trace_hardirqs_on_caller+0xc0/0x310
[  265.919489]  ? syscall_return_slowpath+0x5e0/0x5e0
[  265.924429]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.929301]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.934334]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  265.939820]  ? prepare_exit_to_usermode+0x291/0x3b0
[  265.944836]  ? page_fault+0x8/0x30
[  265.948377]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.953224]  ? page_fault+0x8/0x30
[  265.956764]  page_fault+0x1e/0x30
[  265.960213] RIP: 0033:0x44b69a
[  265.963460] Code: Bad RIP value.
[  265.966819] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  265.972203] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  265.979513] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  265.986783] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  265.994048] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  266.001313] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  266.008639] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  266.008645] warn_alloc_show_mem: 1 callbacks suppressed
[  266.008652] Mem-Info:
[  266.015842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  266.021243] active_anon:47227 inactive_anon:190 isolated_anon:0
[  266.021243]  active_file:11 inactive_file:14 isolated_file:0
[  266.021243]  unevictable:0 dirty:0 writeback:0 unstable:0
[  266.021243]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  266.021243]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  266.021243]  free:13756 free_pcp:235 free_cma:0
[  266.023628] Call Trace:
[  266.033020] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  266.065859]  <IRQ>
[  266.068427] 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
[  266.095947]  dump_stack+0x244/0x39d
[  266.098072] lowmem_reserve[]: 0 2818 6321 6321
[  266.124184]  ? dump_stack_print_info.cold.1+0x20/0x20
[  266.127790] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  266.132375]  warn_alloc.cold.116+0xb7/0x1bd
[  266.137528] lowmem_reserve[]: 0 0 3503 3503
[  266.164857]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  266.169158] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  266.173479]  ? lock_downgrade+0x900/0x900
[  266.178293] lowmem_reserve[]: 0 0 0 0
[  266.207194]  ? trace_hardirqs_off+0xb8/0x310
[  266.211319] 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
[  266.215131]  ? trace_hardirqs_off+0xb8/0x310
[  266.219508] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  266.233043]  __alloc_pages_slowpath+0x26e8/0x2e10
[  266.237419] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  266.252694]  ? warn_alloc+0x120/0x120
[  266.257498] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  266.272576]  ? print_usage_bug+0xc0/0xc0
[  266.276370] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  266.285195]  ? warn_alloc+0x120/0x120
[  266.289232] 269 total pagecache pages
[  266.297799]  ? warn_alloc+0x120/0x120
[  266.301587] 0 pages in swap cache
[  266.305373]  ? print_usage_bug+0xc0/0xc0
[  266.309154] Swap cache stats: add 0, delete 0, find 0/0
[  266.312611]  ? kvm_clock_read+0x18/0x30
[  266.316673] Free swap  = 0kB
[  266.322033]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  266.325980] Total swap = 0kB
[  266.329006]  ? print_usage_bug+0xc0/0xc0
[  266.334001] 1965979 pages RAM
[  266.337013]  ? __lock_acquire+0x62f/0x4c20
[  266.341058] 0 pages HighMem/MovableOnly
[  266.344167]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.348386] 342853 pages reserved
[  266.352366]  ? should_fail+0x22d/0xd01
[  266.357877] 0 pages cma reserved
[  266.361323]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.365322] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  266.368589]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  266.373997] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  266.380381]  ? __lock_acquire+0x62f/0x4c20
[  266.385457] syz-fuzzer cpuset=/ mems_allowed=0
[  266.395680]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  266.409613]  ? __lock_acquire+0x62f/0x4c20
[  266.413842]  ? should_fail+0x22d/0xd01
[  266.417743]  ? rcu_irq_exit+0x1a2/0x390
[  266.421729]  ? mark_held_locks+0x130/0x130
[  266.425970]  ? mark_held_locks+0x130/0x130
[  266.430209]  ? mark_held_locks+0xc7/0x130
[  266.434360]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  266.439390]  ? zap_class+0x640/0x640
[  266.443113]  ? print_usage_bug+0xc0/0xc0
[  266.447180]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.452742]  ? check_preemption_disabled+0x48/0x280
[  266.457783]  ? __lock_is_held+0xb5/0x140
[  266.461858]  __alloc_pages_nodemask+0xa80/0xde0
[  266.466532]  ? zap_class+0x640/0x640
[  266.470260]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  266.475287]  ? find_held_lock+0x36/0x1c0
[  266.479372]  ? ____cache_alloc_node+0x1c7/0x1e0
[  266.484046]  ? lock_downgrade+0x900/0x900
[  266.488214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.493800]  cache_grow_begin+0xa5/0x8c0
[  266.497862]  ? do_raw_spin_unlock+0xa7/0x330
[  266.502282]  fallback_alloc+0x204/0x2e0
[  266.506265]  ____cache_alloc_node+0x1c7/0x1e0
[  266.510767]  kmem_cache_alloc_node+0xe3/0x730
[  266.515266]  ? ipv6_get_ifaddr+0x42e/0x620
[  266.519517]  __alloc_skb+0x119/0x770
[  266.523243]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.528534]  ? netdev_alloc_frag+0x1f0/0x1f0
[  266.532950]  ? lock_downgrade+0x900/0x900
[  266.537111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.542661]  ? refcount_sub_and_test_checked+0x203/0x310
[  266.548122]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  266.553577]  ? addrconf_rs_timer+0x690/0x690
[  266.558000]  ndisc_alloc_skb+0x144/0x340
[  266.562067]  ndisc_send_rs+0x331/0x6e0
[  266.565969]  addrconf_rs_timer+0x314/0x690
[  266.570213]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.574497]  call_timer_fn+0x272/0x920
[  266.578417]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.582654]  ? process_timeout+0x40/0x40
[  266.586723]  ? __run_timers+0x7da/0xc70
[  266.590699]  ? _raw_spin_unlock_irq+0x27/0x80
[  266.595217]  ? _raw_spin_unlock_irq+0x27/0x80
[  266.599706]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.603948]  ? lockdep_hardirqs_on+0x296/0x5b0
[  266.608542]  ? trace_hardirqs_on+0xbd/0x310
[  266.612869]  ? kasan_check_read+0x11/0x20
[  266.617027]  ? __run_timers+0x7da/0xc70
[  266.621008]  ? trace_hardirqs_off_caller+0x310/0x310
[  266.626119]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.630361]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  266.634598]  __run_timers+0x7e5/0xc70
[  266.638417]  ? timer_fixup_init+0x70/0x70
[  266.642584]  ? lock_acquire+0x1ed/0x520
[  266.646560]  ? zap_class+0x640/0x640
[  266.650278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.655837]  ? kasan_check_read+0x11/0x20
[  266.659989]  ? do_raw_spin_lock+0x14f/0x350
[  266.664318]  ? find_held_lock+0x36/0x1c0
[  266.668397]  ? zap_class+0x640/0x640
[  266.672118]  ? pvclock_read_flags+0x160/0x160
[  266.676638]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.682178]  ? check_preemption_disabled+0x48/0x280
[  266.687221]  ? __lock_is_held+0xb5/0x140
[  266.691283]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.696842]  ? check_preemption_disabled+0x48/0x280
[  266.701895]  run_timer_softirq+0x52/0xb0
[  266.706007]  ? rcu_read_lock_sched_held+0x14f/0x180
[  266.711031]  __do_softirq+0x308/0xb7e
[  266.714836]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  266.719330]  ? lock_downgrade+0x900/0x900
[  266.723497]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  266.728614]  ? pvclock_read_flags+0x160/0x160
[  266.733113]  ? lapic_next_event+0x5a/0x90
[  266.737267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.742807]  ? kvm_clock_read+0x18/0x30
[  266.746783]  ? kvm_sched_clock_read+0x9/0x20
[  266.751380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.756927]  ? check_preemption_disabled+0x48/0x280
[  266.761957]  irq_exit+0x17f/0x1c0
[  266.765415]  smp_apic_timer_interrupt+0x1cb/0x760
[  266.770261]  ? smp_call_function_single_interrupt+0x159/0x650
[  266.776164]  ? smp_call_function_single_interrupt+0x650/0x650
[  266.782047]  ? interrupt_entry+0xb5/0xc0
[  266.786112]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.791131]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.796153]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.801001]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.806019]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.811052]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.815913]  apic_timer_interrupt+0xf/0x20
[  266.820141]  </IRQ>
[  266.822386] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  266.827320] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  266.846222] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  266.854531] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  266.861813] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  266.869081] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  266.876366] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  266.883635] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  266.890954]  skb_clone+0x1bb/0x500
[  266.894532]  ? skb_split+0x11e0/0x11e0
[  266.898462]  ? check_preemption_disabled+0x48/0x280
[  266.903478]  ? __this_cpu_preempt_check+0x1c/0x20
[  266.908327]  ? __bpf_redirect+0x54b/0xb20
[  266.912481]  bpf_clone_redirect+0xb9/0x490
[  266.916730]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  266.921789]  ? __sched_text_start+0x8/0x8
[  266.925954]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  266.930742]  ? find_held_lock+0x36/0x1c0
[  266.934814]  ? lock_acquire+0x1ed/0x520
[  266.938795]  ? bpf_test_run+0x3cb/0x780
[  266.942783]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.948324]  ? check_preemption_disabled+0x48/0x280
[  266.953349]  ? kasan_check_read+0x11/0x20
[  266.957502]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.962783]  ? rcu_softirq_qs+0x20/0x20
[  266.966811]  ? preempt_schedule+0x4d/0x60
[  266.970985]  ? ___preempt_schedule+0x16/0x18
[  266.975420]  ? bpf_test_run+0x25d/0x780
[  266.979407]  ? netlink_diag_dump+0x2a0/0x2a0
[  266.983821]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  266.988586]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  266.993353]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  266.998198]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  267.003734]  ? fput+0x130/0x1a0
[  267.007047]  ? __bpf_prog_get+0x9b/0x290
[  267.011124]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  267.015964]  ? bpf_prog_test_run+0x130/0x1a0
[  267.020386]  ? __x64_sys_bpf+0x3d8/0x520
[  267.024449]  ? bpf_prog_get+0x20/0x20
[  267.028273]  ? do_syscall_64+0x1b9/0x820
[  267.032333]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  267.037711]  ? syscall_return_slowpath+0x5e0/0x5e0
[  267.042666]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.047516]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.052538]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  267.057575]  ? prepare_exit_to_usermode+0x291/0x3b0
[  267.062603]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.067465]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  267.072850] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  267.072949] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  267.079796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  267.079805] Call Trace:
[  267.086510] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  267.095642]  <IRQ>
[  267.098215] syz-executor4 cpuset=syz4 mems_allowed=0
[  267.108704]  dump_stack+0x244/0x39d
[  267.119543]  ? dump_stack_print_info.cold.1+0x20/0x20
[  267.124747]  warn_alloc.cold.116+0xb7/0x1bd
[  267.129070]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  267.133933]  ? lock_downgrade+0x900/0x900
[  267.138091]  ? trace_hardirqs_off+0xb8/0x310
[  267.142506]  ? trace_hardirqs_off+0xb8/0x310
[  267.146932]  __alloc_pages_slowpath+0x26e8/0x2e10
[  267.151827]  ? warn_alloc+0x120/0x120
[  267.155635]  ? print_usage_bug+0xc0/0xc0
[  267.159699]  ? warn_alloc+0x120/0x120
[  267.163504]  ? warn_alloc+0x120/0x120
[  267.167310]  ? print_usage_bug+0xc0/0xc0
[  267.171376]  ? kvm_clock_read+0x18/0x30
[  267.175357]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  267.180379]  ? print_usage_bug+0xc0/0xc0
[  267.184445]  ? __lock_acquire+0x62f/0x4c20
[  267.188685]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.194232]  ? should_fail+0x22d/0xd01
[  267.198123]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.203409]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.208513]  ? __lock_acquire+0x62f/0x4c20
[  267.212754]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.217855]  ? __lock_acquire+0x62f/0x4c20
[  267.222094]  ? should_fail+0x22d/0xd01
[  267.226018]  ? rcu_irq_exit+0x1a2/0x390
[  267.230012]  ? mark_held_locks+0x130/0x130
[  267.234253]  ? mark_held_locks+0x130/0x130
[  267.238494]  ? mark_held_locks+0xc7/0x130
[  267.242643]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  267.247659]  ? zap_class+0x640/0x640
[  267.251372]  ? print_usage_bug+0xc0/0xc0
[  267.255442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.260984]  ? check_preemption_disabled+0x48/0x280
[  267.266020]  ? __lock_is_held+0xb5/0x140
[  267.270089]  __alloc_pages_nodemask+0xa80/0xde0
[  267.274762]  ? zap_class+0x640/0x640
[  267.278488]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  267.283516]  ? find_held_lock+0x36/0x1c0
[  267.287599]  ? ____cache_alloc_node+0x1c7/0x1e0
[  267.292270]  ? lock_downgrade+0x900/0x900
[  267.296426]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.301968]  cache_grow_begin+0xa5/0x8c0
[  267.306069]  ? do_raw_spin_unlock+0xa7/0x330
[  267.310489]  fallback_alloc+0x204/0x2e0
[  267.314473]  ____cache_alloc_node+0x1c7/0x1e0
[  267.318973]  kmem_cache_alloc_node+0xe3/0x730
[  267.323489]  ? ipv6_get_ifaddr+0x42e/0x620
[  267.327738]  __alloc_skb+0x119/0x770
[  267.331450]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.336731]  ? netdev_alloc_frag+0x1f0/0x1f0
[  267.341144]  ? lock_downgrade+0x900/0x900
[  267.345301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.350841]  ? refcount_sub_and_test_checked+0x203/0x310
[  267.356297]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  267.361748]  ? addrconf_rs_timer+0x690/0x690
[  267.366170]  ndisc_alloc_skb+0x144/0x340
[  267.370236]  ndisc_send_rs+0x331/0x6e0
[  267.374134]  addrconf_rs_timer+0x314/0x690
[  267.378378]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.382657]  call_timer_fn+0x272/0x920
[  267.386544]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.390782]  ? process_timeout+0x40/0x40
[  267.394864]  ? mark_held_locks+0xc7/0x130
[  267.399022]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.403516]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.408026]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.412261]  ? lockdep_hardirqs_on+0x296/0x5b0
[  267.416846]  ? trace_hardirqs_on+0xbd/0x310
[  267.421183]  ? kasan_check_read+0x11/0x20
[  267.425331]  ? __run_timers+0x7da/0xc70
[  267.429305]  ? trace_hardirqs_off_caller+0x310/0x310
[  267.434412]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.438675]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.442916]  __run_timers+0x7e5/0xc70
[  267.446755]  ? timer_fixup_init+0x70/0x70
[  267.450901]  ? kasan_check_read+0x11/0x20
[  267.455060]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.460340]  ? rcu_softirq_qs+0x20/0x20
[  267.464324]  ? mark_held_locks+0xc7/0x130
[  267.468477]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  267.473239]  ? retint_kernel+0x2d/0x2d
[  267.477130]  ? trace_hardirqs_on_caller+0xc0/0x310
[  267.482062]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  267.486821]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  267.492284]  ? zap_class+0x640/0x640
[  267.496012]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.501552]  ? check_preemption_disabled+0x48/0x280
[  267.506577]  ? __lock_is_held+0xb5/0x140
[  267.510640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.516179]  ? check_preemption_disabled+0x48/0x280
[  267.521206]  run_timer_softirq+0x52/0xb0
[  267.525282]  ? rcu_read_lock_sched_held+0x14f/0x180
[  267.530344]  __do_softirq+0x308/0xb7e
[  267.534165]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  267.538678]  ? lock_downgrade+0x900/0x900
[  267.542830]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  267.547949]  ? pvclock_read_flags+0x160/0x160
[  267.552447]  ? lapic_next_event+0x5a/0x90
[  267.556599]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.562141]  ? kvm_clock_read+0x18/0x30
[  267.566115]  ? kvm_sched_clock_read+0x9/0x20
[  267.570528]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.576112]  ? check_preemption_disabled+0x48/0x280
[  267.581154]  irq_exit+0x17f/0x1c0
[  267.584625]  smp_apic_timer_interrupt+0x1cb/0x760
[  267.589484]  ? smp_call_function_single_interrupt+0x650/0x650
[  267.595372]  ? interrupt_entry+0xb5/0xc0
[  267.599439]  ? trace_hardirqs_off_caller+0xbb/0x310
[  267.604455]  ? trace_hardirqs_off_caller+0xbb/0x310
[  267.609488]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.614361]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.619376]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.624392]  ? task_prio+0x50/0x50
[  267.627941]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.633479]  ? check_preemption_disabled+0x48/0x280
[  267.638502]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.643353]  apic_timer_interrupt+0xf/0x20
[  267.647582]  </IRQ>
[  267.649821] RIP: 0010:dump_stack+0x358/0x39d
[  267.654230] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  267.673132] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  267.680839] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  267.688122] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  267.695392] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  267.702664] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  267.709948] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  267.717278]  ? dump_stack+0x34f/0x39d
[  267.721106]  ? dump_stack_print_info.cold.1+0x20/0x20
[  267.726301]  ? mark_held_locks+0x130/0x130
[  267.730536]  ? mark_held_locks+0x130/0x130
[  267.734778]  dump_header+0x27b/0xf72
[  267.738502]  ? pagefault_out_of_memory+0x197/0x197
[  267.743442]  ? __lock_acquire+0x62f/0x4c20
[  267.747708]  ? percpu_ref_get_many+0x240/0x240
[  267.752296]  ? print_usage_bug+0xc0/0xc0
[  267.756365]  ? zap_class+0x640/0x640
[  267.760085]  ? print_usage_bug+0xc0/0xc0
[  267.764149]  ? print_usage_bug+0xc0/0xc0
[  267.768223]  ? zap_class+0x640/0x640
[  267.771951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.777492]  ? find_held_lock+0x36/0x1c0
[  267.781563]  ? mark_held_locks+0xc7/0x130
[  267.785725]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  267.790845]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  267.795953]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  267.800538]  ? trace_hardirqs_on+0xbd/0x310
[  267.804865]  ? kasan_check_read+0x11/0x20
[  267.809018]  ? ___ratelimit+0x3b4/0x672
[  267.813002]  ? trace_hardirqs_off_caller+0x310/0x310
[  267.818111]  ? trace_hardirqs_on+0x310/0x310
[  267.822550]  ? lock_downgrade+0x900/0x900
[  267.826716]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  267.831832]  ? ___ratelimit+0x3b9/0x672
[  267.835821]  ? idr_get_free+0xf70/0xf70
[  267.839806]  ? find_held_lock+0x36/0x1c0
[  267.843876]  oom_kill_process.cold.27+0x10/0x903
[  267.848641]  ? zap_class+0x640/0x640
[  267.852359]  ? check_preemption_disabled+0x48/0x280
[  267.857384]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.862317]  ? kasan_check_read+0x11/0x20
[  267.866465]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.871748]  ? oom_evaluate_task+0x540/0x540
[  267.876161]  ? find_held_lock+0x36/0x1c0
[  267.880229]  ? out_of_memory+0x974/0x1430
[  267.884476]  ? lock_downgrade+0x900/0x900
[  267.888629]  ? check_preemption_disabled+0x48/0x280
[  267.893662]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  267.898588]  ? kasan_check_read+0x11/0x20
[  267.902735]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.908019]  ? rcu_softirq_qs+0x20/0x20
[  267.912001]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.917543]  ? oom_evaluate_task+0x302/0x540
[  267.921956]  out_of_memory+0xa84/0x1430
[  267.925945]  ? oom_killer_disable+0x3a0/0x3a0
[  267.930458]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  267.935411]  ? __ww_mutex_check_waiters+0x160/0x160
[  267.940439]  __alloc_pages_slowpath+0x2354/0x2e10
[  267.945312]  ? warn_alloc+0x120/0x120
[  267.949117]  ? mark_held_locks+0x130/0x130
[  267.953362]  ? find_get_entry+0xaae/0x1120
[  267.957605]  ? filemap_map_pages+0x1a20/0x1a20
[  267.962221]  ? zap_class+0x640/0x640
[  267.965972]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.971519]  ? check_preemption_disabled+0x48/0x280
[  267.976536]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.982078]  ? should_fail+0x22d/0xd01
[  267.985973]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.991095]  ? zap_class+0x640/0x640
[  267.994833]  ? __lock_is_held+0xb5/0x140
[  267.998902]  ? mark_held_locks+0x130/0x130
[  268.003150]  ? lock_release+0xa00/0xa00
[  268.007126]  ? perf_trace_sched_process_exec+0x860/0x860
[  268.012578]  ? xa_load+0x2ba/0x460
[  268.016119]  ? lock_downgrade+0x900/0x900
[  268.020270]  ? __might_sleep+0x95/0x190
[  268.024282]  __alloc_pages_nodemask+0xa80/0xde0
[  268.028961]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  268.033982]  ? __page_cache_alloc+0x191/0x5c0
[  268.038485]  ? xa_load+0x2e1/0x460
[  268.042032]  ? xa_clear_mark+0x40/0x40
[  268.045929]  ? zap_class+0x640/0x640
[  268.049653]  ? zap_class+0x640/0x640
[  268.053370]  ? zap_class+0x640/0x640
[  268.057091]  ? __do_page_cache_readahead+0x663/0x810
[  268.062203]  ? find_held_lock+0x36/0x1c0
[  268.066280]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  268.071833]  alloc_pages_current+0x173/0x350
[  268.076250]  __page_cache_alloc+0x38c/0x5c0
[  268.080572]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.085504]  ? kasan_check_read+0x11/0x20
[  268.089651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.094939]  ? generic_perform_write+0x6a0/0x6a0
[  268.099734]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.105278]  ? check_preemption_disabled+0x48/0x280
[  268.110303]  filemap_fault+0x1595/0x25f0
[  268.114376]  ? __lock_page_or_retry+0xa00/0xa00
[  268.119047]  ? mark_held_locks+0x130/0x130
[  268.123315]  ? filemap_map_pages+0xd6b/0x1a20
[  268.127815]  ? lock_downgrade+0x900/0x900
[  268.131962]  ? check_preemption_disabled+0x48/0x280
[  268.136985]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.141955]  ? kasan_check_read+0x11/0x20
[  268.146105]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.151383]  ? rcu_softirq_qs+0x20/0x20
[  268.155389]  ? filemap_map_pages+0xd92/0x1a20
[  268.159923]  ? find_get_entries_tag+0x1400/0x1400
[  268.164768]  ? find_held_lock+0x36/0x1c0
[  268.168849]  ? lock_acquire+0x1ed/0x520
[  268.172822]  ? ext4_filemap_fault+0x7a/0xad
[  268.177155]  ? lock_release+0xa00/0xa00
[  268.181131]  ? perf_trace_sched_process_exec+0x860/0x860
[  268.186586]  ? print_usage_bug+0xc0/0xc0
[  268.190652]  ? print_usage_bug+0xc0/0xc0
[  268.194753]  ? down_read+0x8d/0x120
[  268.198391]  ? ext4_filemap_fault+0x7a/0xad
[  268.202732]  ? __down_interruptible+0x700/0x700
[  268.207410]  ext4_filemap_fault+0x82/0xad
[  268.211562]  __do_fault+0x100/0x6b0
[  268.215187]  ? find_held_lock+0x36/0x1c0
[  268.219253]  ? pmd_devmap_trans_unstable+0x220/0x220
[  268.224362]  ? mark_held_locks+0x130/0x130
[  268.228598]  ? mark_held_locks+0x130/0x130
[  268.232859]  ? kasan_check_read+0x11/0x20
[  268.237016]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.242565]  __handle_mm_fault+0x3ea0/0x5be0
[  268.246974]  ? perf_trace_lock+0x7a0/0x7a0
[  268.251219]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  268.256071]  ? __switch_to_asm+0x34/0x70
[  268.260129]  ? __switch_to_asm+0x34/0x70
[  268.264203]  ? zap_class+0x640/0x640
[  268.267926]  ? zap_class+0x640/0x640
[  268.271641]  ? __x64_sys_futex+0x53e/0x6a0
[  268.275879]  ? find_held_lock+0x36/0x1c0
[  268.279958]  ? handle_mm_fault+0x42a/0xc70
[  268.284195]  ? lock_downgrade+0x900/0x900
[  268.288348]  ? check_preemption_disabled+0x48/0x280
[  268.293367]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.298301]  ? kasan_check_read+0x11/0x20
[  268.302451]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.307725]  ? rcu_softirq_qs+0x20/0x20
[  268.311716]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.316838]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.322376]  ? check_preemption_disabled+0x48/0x280
[  268.327417]  handle_mm_fault+0x54f/0xc70
[  268.331496]  ? __handle_mm_fault+0x5be0/0x5be0
[  268.336084]  ? find_vma+0x34/0x190
[  268.339631]  __do_page_fault+0x5e8/0xe60
[  268.343691]  ? trace_hardirqs_off+0xb8/0x310
[  268.348112]  do_page_fault+0xf2/0x7e0
[  268.351926]  ? vmalloc_sync_all+0x30/0x30
[  268.356077]  ? error_entry+0x70/0xd0
[  268.359798]  ? trace_hardirqs_off_caller+0xbb/0x310
[  268.364813]  ? trace_hardirqs_on_caller+0xc0/0x310
[  268.369749]  ? syscall_return_slowpath+0x5e0/0x5e0
[  268.374680]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.379528]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.384547]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  268.390014]  ? prepare_exit_to_usermode+0x291/0x3b0
[  268.395041]  ? page_fault+0x8/0x30
[  268.398588]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.403433]  ? page_fault+0x8/0x30
[  268.406975]  page_fault+0x1e/0x30
[  268.410438] RIP: 0033:0x44b69a
[  268.413643] Code: Bad RIP value.
[  268.417004] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  268.422370] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  268.429639] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  268.436918] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  268.444186] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  268.451454] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  268.458748] warn_alloc_show_mem: 1 callbacks suppressed
[  268.458761] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  268.458763] Mem-Info:
[  268.458796] active_anon:47227 inactive_anon:190 isolated_anon:0
[  268.458796]  active_file:11 inactive_file:14 isolated_file:0
[  268.458796]  unevictable:0 dirty:0 writeback:0 unstable:0
[  268.458796]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  268.458796]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  268.458796]  free:13756 free_pcp:235 free_cma:0
[  268.464142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  268.471340] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  268.473741] Call Trace:
[  268.506612] 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
[  268.515961]  <IRQ>
[  268.543440] lowmem_reserve[]: 0 2818 6321 6321
[  268.546044]  dump_stack+0x244/0x39d
[  268.572128] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  268.574286]  ? dump_stack_print_info.cold.1+0x20/0x20
[  268.578834] lowmem_reserve[]: 0 0 3503 3503
[  268.582466]  warn_alloc.cold.116+0xb7/0x1bd
[  268.609769] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  268.614967]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  268.619253] lowmem_reserve[]: 0 0 0 0
[  268.623578]  ? lock_downgrade+0x900/0x900
[  268.652443] 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
[  268.657296]  ? trace_hardirqs_off+0xb8/0x310
[  268.661061] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  268.665205]  ? trace_hardirqs_off+0xb8/0x310
[  268.678698] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  268.683123]  __alloc_pages_slowpath+0x26e8/0x2e10
[  268.698358] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  268.702790]  ? warn_alloc+0x120/0x120
[  268.717834] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  268.722667]  ? warn_alloc+0x120/0x120
[  268.731479] 269 total pagecache pages
[  268.735275]  ? zap_class+0x640/0x640
[  268.743831] 0 pages in swap cache
[  268.747619]  ? warn_alloc+0x120/0x120
[  268.751790] Swap cache stats: add 0, delete 0, find 0/0
[  268.751800] Free swap  = 0kB
[  268.755516]  ? print_usage_bug+0xc0/0xc0
[  268.758937] Total swap = 0kB
[  268.762745]  ? idle_cpu+0x1d0/0x1d0
[  268.768081] 1965979 pages RAM
[  268.771094]  ? kvm_sched_clock_read+0x9/0x20
[  268.775131] 0 pages HighMem/MovableOnly
[  268.778144]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  268.781743] 342853 pages reserved
[  268.784845]  ? print_usage_bug+0xc0/0xc0
[  268.789229] 0 pages cma reserved
[  268.793199]  ? __lock_is_held+0xb5/0x140
[  268.798309] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  268.801657]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.805799] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  268.809065]  ? should_fail+0x22d/0xd01
[  268.813097] syz-fuzzer cpuset=/ mems_allowed=0
[  268.819583]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  268.848843]  ? __lock_acquire+0x62f/0x4c20
[  268.853087]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  268.858189]  ? __lock_acquire+0x62f/0x4c20
[  268.862423]  ? should_fail+0x22d/0xd01
[  268.866323]  ? mark_held_locks+0x130/0x130
[  268.870564]  ? mark_held_locks+0x130/0x130
[  268.874816]  ? __enqueue_entity+0x10d/0x1f0
[  268.879145]  ? zap_class+0x640/0x640
[  268.882864]  ? print_usage_bug+0xc0/0xc0
[  268.886946]  ? __lock_acquire+0x62f/0x4c20
[  268.891186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.896726]  ? check_preemption_disabled+0x48/0x280
[  268.901753]  ? __lock_is_held+0xb5/0x140
[  268.905832]  __alloc_pages_nodemask+0xa80/0xde0
[  268.910505]  ? zap_class+0x640/0x640
[  268.914237]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  268.919270]  ? find_held_lock+0x36/0x1c0
[  268.923343]  ? ____cache_alloc_node+0x1c7/0x1e0
[  268.928015]  ? lock_downgrade+0x900/0x900
[  268.932175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.937722]  cache_grow_begin+0xa5/0x8c0
[  268.941796]  ? do_raw_spin_unlock+0xa7/0x330
[  268.946211]  fallback_alloc+0x204/0x2e0
[  268.950195]  ____cache_alloc_node+0x1c7/0x1e0
[  268.954698]  kmem_cache_alloc_node+0xe3/0x730
[  268.959200]  ? ipv6_get_ifaddr+0x42e/0x620
[  268.963448]  __alloc_skb+0x119/0x770
[  268.967164]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.972444]  ? netdev_alloc_frag+0x1f0/0x1f0
[  268.976852]  ? lock_downgrade+0x900/0x900
[  268.981009]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.986556]  ? refcount_sub_and_test_checked+0x203/0x310
[  268.992025]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  268.997476]  ? addrconf_rs_timer+0x690/0x690
[  269.001920]  ndisc_alloc_skb+0x144/0x340
[  269.005998]  ndisc_send_rs+0x331/0x6e0
[  269.009931]  addrconf_rs_timer+0x314/0x690
[  269.014175]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.018421]  call_timer_fn+0x272/0x920
[  269.022312]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.026581]  ? process_timeout+0x40/0x40
[  269.030653]  ? __run_timers+0x7da/0xc70
[  269.034627]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.039121]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.043643]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.047878]  ? lockdep_hardirqs_on+0x296/0x5b0
[  269.052472]  ? trace_hardirqs_on+0xbd/0x310
[  269.056794]  ? kasan_check_read+0x11/0x20
[  269.061027]  ? __run_timers+0x7da/0xc70
[  269.065007]  ? trace_hardirqs_off_caller+0x310/0x310
[  269.070126]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.074357]  __run_timers+0x7e5/0xc70
[  269.078165]  ? timer_fixup_init+0x70/0x70
[  269.082320]  ? lock_acquire+0x1ed/0x520
[  269.086296]  ? zap_class+0x640/0x640
[  269.090017]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.095565]  ? kasan_check_read+0x11/0x20
[  269.099711]  ? do_raw_spin_lock+0x14f/0x350
[  269.104041]  ? find_held_lock+0x36/0x1c0
[  269.108108]  ? zap_class+0x640/0x640
[  269.111825]  ? pvclock_read_flags+0x160/0x160
[  269.116324]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.121868]  ? check_preemption_disabled+0x48/0x280
[  269.126895]  ? __lock_is_held+0xb5/0x140
[  269.130971]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.136518]  ? check_preemption_disabled+0x48/0x280
[  269.141543]  run_timer_softirq+0x52/0xb0
[  269.145610]  ? rcu_read_lock_sched_held+0x14f/0x180
[  269.150632]  __do_softirq+0x308/0xb7e
[  269.154442]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  269.158938]  ? lock_downgrade+0x900/0x900
[  269.163091]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  269.168202]  ? pvclock_read_flags+0x160/0x160
[  269.172714]  ? lapic_next_event+0x5a/0x90
[  269.176867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.182415]  ? kvm_clock_read+0x18/0x30
[  269.186407]  ? kvm_sched_clock_read+0x9/0x20
[  269.190830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.196383]  ? check_preemption_disabled+0x48/0x280
[  269.201411]  irq_exit+0x17f/0x1c0
[  269.204869]  smp_apic_timer_interrupt+0x1cb/0x760
[  269.209730]  ? smp_call_function_single_interrupt+0x159/0x650
[  269.215630]  ? smp_call_function_single_interrupt+0x650/0x650
[  269.221518]  ? interrupt_entry+0xb5/0xc0
[  269.225589]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.230605]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.235625]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.240467]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.245499]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.250537]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.255409]  apic_timer_interrupt+0xf/0x20
[  269.259634]  </IRQ>
[  269.261881] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  269.266818] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  269.285715] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  269.293453] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  269.300719] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  269.307987] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  269.315252] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  269.322522] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  269.329845]  skb_clone+0x1bb/0x500
[  269.333386]  ? skb_split+0x11e0/0x11e0
[  269.337274]  ? check_preemption_disabled+0x48/0x280
[  269.342322]  ? __this_cpu_preempt_check+0x1c/0x20
[  269.347196]  ? __bpf_redirect+0x54b/0xb20
[  269.351382]  bpf_clone_redirect+0xb9/0x490
[  269.355641]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  269.360664]  ? __sched_text_start+0x8/0x8
[  269.364819]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  269.369594]  ? find_held_lock+0x36/0x1c0
[  269.373672]  ? lock_acquire+0x1ed/0x520
[  269.377651]  ? bpf_test_run+0x3cb/0x780
[  269.381630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.387176]  ? check_preemption_disabled+0x48/0x280
[  269.392203]  ? kasan_check_read+0x11/0x20
[  269.396357]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.401635]  ? rcu_softirq_qs+0x20/0x20
[  269.405615]  ? preempt_schedule+0x4d/0x60
[  269.409763]  ? ___preempt_schedule+0x16/0x18
[  269.414176]  ? bpf_test_run+0x25d/0x780
[  269.418160]  ? netlink_diag_dump+0x2a0/0x2a0
[  269.422574]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  269.427333]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  269.432115]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  269.436960]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  269.442516]  ? fput+0x130/0x1a0
[  269.445813]  ? __bpf_prog_get+0x9b/0x290
[  269.449899]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  269.454754]  ? bpf_prog_test_run+0x130/0x1a0
[  269.459167]  ? __x64_sys_bpf+0x3d8/0x520
[  269.463230]  ? bpf_prog_get+0x20/0x20
[  269.467051]  ? do_syscall_64+0x1b9/0x820
[  269.471115]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  269.476484]  ? syscall_return_slowpath+0x5e0/0x5e0
[  269.481430]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.486279]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.491295]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  269.496333]  ? prepare_exit_to_usermode+0x291/0x3b0
[  269.501355]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.506205]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  269.511586] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  269.511681] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  269.518517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  269.518522] Call Trace:
[  269.518529]  <IRQ>
[  269.518546]  dump_stack+0x244/0x39d
[  269.518565]  ? dump_stack_print_info.cold.1+0x20/0x20
[  269.525147] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  269.534398]  warn_alloc.cold.116+0xb7/0x1bd
[  269.536981] syz-executor4 cpuset=syz4 mems_allowed=0
[  269.539123]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  269.572615]  ? lock_downgrade+0x900/0x900
[  269.576789]  ? trace_hardirqs_off+0xb8/0x310
[  269.581204]  ? trace_hardirqs_off+0xb8/0x310
[  269.585620]  __alloc_pages_slowpath+0x26e8/0x2e10
[  269.590492]  ? warn_alloc+0x120/0x120
[  269.594297]  ? print_usage_bug+0xc0/0xc0
[  269.598359]  ? warn_alloc+0x120/0x120
[  269.602183]  ? warn_alloc+0x120/0x120
[  269.606041]  ? print_usage_bug+0xc0/0xc0
[  269.610105]  ? kvm_clock_read+0x18/0x30
[  269.614098]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  269.619120]  ? print_usage_bug+0xc0/0xc0
[  269.623183]  ? __lock_acquire+0x62f/0x4c20
[  269.627436]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.632975]  ? should_fail+0x22d/0xd01
[  269.636864]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.642142]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.647246]  ? __lock_acquire+0x62f/0x4c20
[  269.651486]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.656592]  ? __lock_acquire+0x62f/0x4c20
[  269.660822]  ? should_fail+0x22d/0xd01
[  269.664703]  ? rcu_irq_exit+0x1a2/0x390
[  269.668684]  ? mark_held_locks+0x130/0x130
[  269.672957]  ? mark_held_locks+0x130/0x130
[  269.677196]  ? mark_held_locks+0xc7/0x130
[  269.681349]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  269.686361]  ? zap_class+0x640/0x640
[  269.690074]  ? print_usage_bug+0xc0/0xc0
[  269.694143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.699696]  ? check_preemption_disabled+0x48/0x280
[  269.704721]  ? __lock_is_held+0xb5/0x140
[  269.708803]  __alloc_pages_nodemask+0xa80/0xde0
[  269.713486]  ? zap_class+0x640/0x640
[  269.717202]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  269.722254]  ? find_held_lock+0x36/0x1c0
[  269.726329]  ? ____cache_alloc_node+0x1c7/0x1e0
[  269.731002]  ? lock_downgrade+0x900/0x900
[  269.735166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.740708]  cache_grow_begin+0xa5/0x8c0
[  269.744769]  ? do_raw_spin_unlock+0xa7/0x330
[  269.749184]  fallback_alloc+0x204/0x2e0
[  269.753165]  ____cache_alloc_node+0x1c7/0x1e0
[  269.757678]  kmem_cache_alloc_node+0xe3/0x730
[  269.762187]  ? ipv6_get_ifaddr+0x42e/0x620
[  269.766434]  __alloc_skb+0x119/0x770
[  269.770158]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.775440]  ? netdev_alloc_frag+0x1f0/0x1f0
[  269.779863]  ? lock_downgrade+0x900/0x900
[  269.784050]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.789589]  ? refcount_sub_and_test_checked+0x203/0x310
[  269.795043]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  269.800510]  ? addrconf_rs_timer+0x690/0x690
[  269.804939]  ndisc_alloc_skb+0x144/0x340
[  269.809013]  ndisc_send_rs+0x331/0x6e0
[  269.812915]  addrconf_rs_timer+0x314/0x690
[  269.817157]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.821405]  call_timer_fn+0x272/0x920
[  269.825294]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.829529]  ? process_timeout+0x40/0x40
[  269.833601]  ? mark_held_locks+0xc7/0x130
[  269.837756]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.842249]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.846744]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.850979]  ? lockdep_hardirqs_on+0x296/0x5b0
[  269.855567]  ? trace_hardirqs_on+0xbd/0x310
[  269.859890]  ? kasan_check_read+0x11/0x20
[  269.864050]  ? __run_timers+0x7da/0xc70
[  269.868030]  ? trace_hardirqs_off_caller+0x310/0x310
[  269.873140]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.877420]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.881802]  __run_timers+0x7e5/0xc70
[  269.885616]  ? timer_fixup_init+0x70/0x70
[  269.889780]  ? kasan_check_read+0x11/0x20
[  269.893950]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.899245]  ? rcu_softirq_qs+0x20/0x20
[  269.903245]  ? mark_held_locks+0xc7/0x130
[  269.907397]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  269.912157]  ? retint_kernel+0x2d/0x2d
[  269.916052]  ? trace_hardirqs_on_caller+0xc0/0x310
[  269.920983]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  269.925758]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  269.931239]  ? zap_class+0x640/0x640
[  269.934989]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.940534]  ? check_preemption_disabled+0x48/0x280
[  269.945558]  ? __lock_is_held+0xb5/0x140
[  269.949650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.955188]  ? check_preemption_disabled+0x48/0x280
[  269.960217]  run_timer_softirq+0x52/0xb0
[  269.964281]  ? rcu_read_lock_sched_held+0x14f/0x180
[  269.969302]  __do_softirq+0x308/0xb7e
[  269.973106]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  269.977604]  ? lock_downgrade+0x900/0x900
[  269.981756]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  269.986866]  ? pvclock_read_flags+0x160/0x160
[  269.991370]  ? lapic_next_event+0x5a/0x90
[  269.995520]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.001083]  ? kvm_clock_read+0x18/0x30
[  270.005060]  ? kvm_sched_clock_read+0x9/0x20
[  270.009487]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.015030]  ? check_preemption_disabled+0x48/0x280
[  270.020071]  irq_exit+0x17f/0x1c0
[  270.023526]  smp_apic_timer_interrupt+0x1cb/0x760
[  270.028372]  ? smp_call_function_single_interrupt+0x650/0x650
[  270.034255]  ? interrupt_entry+0xb5/0xc0
[  270.038322]  ? trace_hardirqs_off_caller+0xbb/0x310
[  270.043428]  ? trace_hardirqs_off_caller+0xbb/0x310
[  270.048451]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.053299]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.058314]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.063331]  ? task_prio+0x50/0x50
[  270.066879]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.072426]  ? check_preemption_disabled+0x48/0x280
[  270.077450]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.082305]  apic_timer_interrupt+0xf/0x20
[  270.086538]  </IRQ>
[  270.088778] RIP: 0010:dump_stack+0x358/0x39d
[  270.093189] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  270.112091] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  270.119802] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  270.127069] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  270.134337] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  270.141606] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  270.148877] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  270.156184]  ? dump_stack+0x34f/0x39d
[  270.160002]  ? dump_stack_print_info.cold.1+0x20/0x20
[  270.165203]  ? mark_held_locks+0x130/0x130
[  270.169443]  ? mark_held_locks+0x130/0x130
[  270.173685]  dump_header+0x27b/0xf72
[  270.177418]  ? pagefault_out_of_memory+0x197/0x197
[  270.182362]  ? __lock_acquire+0x62f/0x4c20
[  270.186602]  ? percpu_ref_get_many+0x240/0x240
[  270.191190]  ? print_usage_bug+0xc0/0xc0
[  270.195261]  ? zap_class+0x640/0x640
[  270.198979]  ? print_usage_bug+0xc0/0xc0
[  270.203046]  ? print_usage_bug+0xc0/0xc0
[  270.207111]  ? zap_class+0x640/0x640
[  270.210876]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.216431]  ? find_held_lock+0x36/0x1c0
[  270.220507]  ? mark_held_locks+0xc7/0x130
[  270.224657]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  270.229764]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  270.235045]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  270.239631]  ? trace_hardirqs_on+0xbd/0x310
[  270.243953]  ? kasan_check_read+0x11/0x20
[  270.248100]  ? ___ratelimit+0x3b4/0x672
[  270.252081]  ? trace_hardirqs_off_caller+0x310/0x310
[  270.257192]  ? trace_hardirqs_on+0x310/0x310
[  270.261602]  ? lock_downgrade+0x900/0x900
[  270.265756]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  270.270864]  ? ___ratelimit+0x3b9/0x672
[  270.274841]  ? idr_get_free+0xf70/0xf70
[  270.278816]  ? find_held_lock+0x36/0x1c0
[  270.282890]  oom_kill_process.cold.27+0x10/0x903
[  270.287657]  ? zap_class+0x640/0x640
[  270.291375]  ? check_preemption_disabled+0x48/0x280
[  270.296397]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.301328]  ? kasan_check_read+0x11/0x20
[  270.305479]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.310762]  ? oom_evaluate_task+0x540/0x540
[  270.315175]  ? find_held_lock+0x36/0x1c0
[  270.319244]  ? out_of_memory+0x974/0x1430
[  270.323396]  ? lock_downgrade+0x900/0x900
[  270.327544]  ? check_preemption_disabled+0x48/0x280
[  270.332567]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.337502]  ? kasan_check_read+0x11/0x20
[  270.341649]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.346936]  ? rcu_softirq_qs+0x20/0x20
[  270.350925]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.356466]  ? oom_evaluate_task+0x302/0x540
[  270.360885]  out_of_memory+0xa84/0x1430
[  270.364878]  ? oom_killer_disable+0x3a0/0x3a0
[  270.369382]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  270.374320]  ? __ww_mutex_check_waiters+0x160/0x160
[  270.379353]  __alloc_pages_slowpath+0x2354/0x2e10
[  270.384227]  ? warn_alloc+0x120/0x120
[  270.388034]  ? mark_held_locks+0x130/0x130
[  270.392278]  ? find_get_entry+0xaae/0x1120
[  270.396523]  ? filemap_map_pages+0x1a20/0x1a20
[  270.401113]  ? zap_class+0x640/0x640
[  270.404835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.410379]  ? check_preemption_disabled+0x48/0x280
[  270.415399]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.421549]  ? should_fail+0x22d/0xd01
[  270.425440]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.430551]  ? zap_class+0x640/0x640
[  270.434291]  ? __lock_is_held+0xb5/0x140
[  270.438361]  ? mark_held_locks+0x130/0x130
[  270.442604]  ? lock_release+0xa00/0xa00
[  270.446579]  ? perf_trace_sched_process_exec+0x860/0x860
[  270.452037]  ? xa_load+0x2ba/0x460
[  270.455585]  ? lock_downgrade+0x900/0x900
[  270.459739]  ? __might_sleep+0x95/0x190
[  270.463722]  __alloc_pages_nodemask+0xa80/0xde0
[  270.468399]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  270.473419]  ? __page_cache_alloc+0x191/0x5c0
[  270.477920]  ? xa_load+0x2e1/0x460
[  270.481467]  ? xa_clear_mark+0x40/0x40
[  270.485361]  ? zap_class+0x640/0x640
[  270.489083]  ? zap_class+0x640/0x640
[  270.492795]  ? zap_class+0x640/0x640
[  270.496514]  ? __do_page_cache_readahead+0x663/0x810
[  270.501624]  ? find_held_lock+0x36/0x1c0
[  270.505693]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  270.511240]  alloc_pages_current+0x173/0x350
[  270.515658]  __page_cache_alloc+0x38c/0x5c0
[  270.519980]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.524921]  ? kasan_check_read+0x11/0x20
[  270.529075]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.534358]  ? generic_perform_write+0x6a0/0x6a0
[  270.539122]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.544668]  ? check_preemption_disabled+0x48/0x280
[  270.549696]  filemap_fault+0x1595/0x25f0
[  270.553772]  ? __lock_page_or_retry+0xa00/0xa00
[  270.558447]  ? mark_held_locks+0x130/0x130
[  270.562693]  ? filemap_map_pages+0xd6b/0x1a20
[  270.567193]  ? lock_downgrade+0x900/0x900
[  270.571347]  ? check_preemption_disabled+0x48/0x280
[  270.576383]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.581337]  ? kasan_check_read+0x11/0x20
[  270.585486]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.590772]  ? rcu_softirq_qs+0x20/0x20
[  270.594885]  ? filemap_map_pages+0xd92/0x1a20
[  270.599406]  ? find_get_entries_tag+0x1400/0x1400
[  270.604251]  ? find_held_lock+0x36/0x1c0
[  270.608334]  ? lock_acquire+0x1ed/0x520
[  270.612307]  ? ext4_filemap_fault+0x7a/0xad
[  270.616638]  ? lock_release+0xa00/0xa00
[  270.620613]  ? perf_trace_sched_process_exec+0x860/0x860
[  270.626071]  ? print_usage_bug+0xc0/0xc0
[  270.630134]  ? print_usage_bug+0xc0/0xc0
[  270.634209]  ? down_read+0x8d/0x120
[  270.637835]  ? ext4_filemap_fault+0x7a/0xad
[  270.642160]  ? __down_interruptible+0x700/0x700
[  270.646842]  ext4_filemap_fault+0x82/0xad
[  270.650998]  __do_fault+0x100/0x6b0
[  270.654635]  ? find_held_lock+0x36/0x1c0
[  270.658700]  ? pmd_devmap_trans_unstable+0x220/0x220
[  270.663815]  ? mark_held_locks+0x130/0x130
[  270.668054]  ? mark_held_locks+0x130/0x130
[  270.672303]  ? kasan_check_read+0x11/0x20
[  270.676458]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.682011]  __handle_mm_fault+0x3ea0/0x5be0
[  270.686421]  ? perf_trace_lock+0x7a0/0x7a0
[  270.690665]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  270.695518]  ? __switch_to_asm+0x34/0x70
[  270.699579]  ? __switch_to_asm+0x34/0x70
[  270.703654]  ? zap_class+0x640/0x640
[  270.707372]  ? zap_class+0x640/0x640
[  270.711089]  ? __x64_sys_futex+0x53e/0x6a0
[  270.715330]  ? find_held_lock+0x36/0x1c0
[  270.719403]  ? handle_mm_fault+0x42a/0xc70
[  270.723646]  ? lock_downgrade+0x900/0x900
[  270.727799]  ? check_preemption_disabled+0x48/0x280
[  270.732824]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  270.737758]  ? kasan_check_read+0x11/0x20
[  270.741916]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.747195]  ? rcu_softirq_qs+0x20/0x20
[  270.751547]  ? trace_hardirqs_off_caller+0x310/0x310
[  270.756660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.762202]  ? check_preemption_disabled+0x48/0x280
[  270.767253]  handle_mm_fault+0x54f/0xc70
[  270.771325]  ? __handle_mm_fault+0x5be0/0x5be0
[  270.776055]  ? find_vma+0x34/0x190
[  270.779608]  __do_page_fault+0x5e8/0xe60
[  270.783673]  ? trace_hardirqs_off+0xb8/0x310
[  270.788096]  do_page_fault+0xf2/0x7e0
[  270.791901]  ? vmalloc_sync_all+0x30/0x30
[  270.796067]  ? error_entry+0x70/0xd0
[  270.799788]  ? trace_hardirqs_off_caller+0xbb/0x310
[  270.804803]  ? trace_hardirqs_on_caller+0xc0/0x310
[  270.814015]  ? syscall_return_slowpath+0x5e0/0x5e0
[  270.818951]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.823799]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.828818]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  270.834278]  ? prepare_exit_to_usermode+0x291/0x3b0
[  270.839299]  ? page_fault+0x8/0x30
[  270.842846]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.847697]  ? page_fault+0x8/0x30
[  270.851246]  page_fault+0x1e/0x30
[  270.854699] RIP: 0033:0x44b69a
[  270.857917] Code: Bad RIP value.
[  270.861282] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  270.866644] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  270.873921] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  270.881194] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  270.888461] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  270.895728] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  270.903042] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  270.903048] warn_alloc_show_mem: 1 callbacks suppressed
[  270.903056] Mem-Info:
[  270.910254] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  270.915627] active_anon:47227 inactive_anon:190 isolated_anon:0
[  270.915627]  active_file:11 inactive_file:14 isolated_file:0
[  270.915627]  unevictable:0 dirty:0 writeback:0 unstable:0
[  270.915627]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  270.915627]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  270.915627]  free:13756 free_pcp:235 free_cma:0
[  270.918000] Call Trace:
[  270.927402] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  270.960266]  <IRQ>
[  270.962842] 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
[  270.990450]  dump_stack+0x244/0x39d
[  270.992576] lowmem_reserve[]: 0 2818 6321 6321
[  271.018693]  ? dump_stack_print_info.cold.1+0x20/0x20
[  271.022292] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  271.026876]  warn_alloc.cold.116+0xb7/0x1bd
[  271.032034] lowmem_reserve[]: 0 0 3503 3503
[  271.059378]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  271.063674] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  271.067995]  ? lock_downgrade+0x900/0x900
[  271.072807] lowmem_reserve[]: 0 0 0 0
[  271.101749]  ? trace_hardirqs_off+0xb8/0x310
[  271.105875] 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
[  271.109671]  ? trace_hardirqs_off+0xb8/0x310
[  271.114053] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  271.127581]  __alloc_pages_slowpath+0x26e8/0x2e10
[  271.131965] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  271.147244]  ? warn_alloc+0x120/0x120
[  271.152058] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  271.167149]  ? print_usage_bug+0xc0/0xc0
[  271.170936] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  271.179782]  ? warn_alloc+0x120/0x120
[  271.183822] 269 total pagecache pages
[  271.192394]  ? warn_alloc+0x120/0x120
[  271.196179] 0 pages in swap cache
[  271.199973]  ? print_usage_bug+0xc0/0xc0
[  271.203751] Swap cache stats: add 0, delete 0, find 0/0
[  271.207199]  ? kvm_clock_read+0x18/0x30
[  271.211238] Free swap  = 0kB
[  271.216600]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  271.220545] Total swap = 0kB
[  271.223559]  ? print_usage_bug+0xc0/0xc0
[  271.228548] 1965979 pages RAM
[  271.231567]  ? __lock_acquire+0x62f/0x4c20
[  271.235609] 0 pages HighMem/MovableOnly
[  271.238713]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.242926] 342853 pages reserved
[  271.242935] 0 pages cma reserved
[  271.246916]  ? should_fail+0x22d/0xd01
[  271.252526] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  271.255869]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.255889]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  271.259301] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  271.263116]  ? __lock_acquire+0x62f/0x4c20
[  271.269582] syz-fuzzer cpuset=/ mems_allowed=0
[  271.274851]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  271.304204]  ? __lock_acquire+0x62f/0x4c20
[  271.308440]  ? should_fail+0x22d/0xd01
[  271.312327]  ? rcu_irq_exit+0x1a2/0x390
[  271.316317]  ? mark_held_locks+0x130/0x130
[  271.320559]  ? mark_held_locks+0x130/0x130
[  271.324801]  ? mark_held_locks+0xc7/0x130
[  271.328950]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  271.333969]  ? zap_class+0x640/0x640
[  271.337684]  ? print_usage_bug+0xc0/0xc0
[  271.341753]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.347297]  ? check_preemption_disabled+0x48/0x280
[  271.352323]  ? __lock_is_held+0xb5/0x140
[  271.356392]  __alloc_pages_nodemask+0xa80/0xde0
[  271.361064]  ? zap_class+0x640/0x640
[  271.364788]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  271.369837]  ? find_held_lock+0x36/0x1c0
[  271.373920]  ? ____cache_alloc_node+0x1c7/0x1e0
[  271.378594]  ? lock_downgrade+0x900/0x900
[  271.382772]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.388320]  cache_grow_begin+0xa5/0x8c0
[  271.392382]  ? do_raw_spin_unlock+0xa7/0x330
[  271.396831]  fallback_alloc+0x204/0x2e0
[  271.400818]  ____cache_alloc_node+0x1c7/0x1e0
[  271.405322]  kmem_cache_alloc_node+0xe3/0x730
[  271.409821]  ? ipv6_get_ifaddr+0x42e/0x620
[  271.414156]  __alloc_skb+0x119/0x770
[  271.417874]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.423163]  ? netdev_alloc_frag+0x1f0/0x1f0
[  271.427578]  ? lock_downgrade+0x900/0x900
[  271.431736]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.437279]  ? refcount_sub_and_test_checked+0x203/0x310
[  271.442734]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  271.448189]  ? addrconf_rs_timer+0x690/0x690
[  271.452617]  ndisc_alloc_skb+0x144/0x340
[  271.456683]  ndisc_send_rs+0x331/0x6e0
[  271.460579]  addrconf_rs_timer+0x314/0x690
[  271.464850]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.469096]  call_timer_fn+0x272/0x920
[  271.472984]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.477222]  ? process_timeout+0x40/0x40
[  271.481295]  ? __run_timers+0x7da/0xc70
[  271.485272]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.489766]  ? _raw_spin_unlock_irq+0x27/0x80
[  271.494261]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.498497]  ? lockdep_hardirqs_on+0x296/0x5b0
[  271.503092]  ? trace_hardirqs_on+0xbd/0x310
[  271.507421]  ? kasan_check_read+0x11/0x20
[  271.511572]  ? __run_timers+0x7da/0xc70
[  271.515548]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.520659]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.524899]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  271.529144]  __run_timers+0x7e5/0xc70
[  271.532958]  ? timer_fixup_init+0x70/0x70
[  271.537112]  ? lock_acquire+0x1ed/0x520
[  271.541088]  ? zap_class+0x640/0x640
[  271.544803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.550350]  ? kasan_check_read+0x11/0x20
[  271.554499]  ? do_raw_spin_lock+0x14f/0x350
[  271.558834]  ? find_held_lock+0x36/0x1c0
[  271.562900]  ? zap_class+0x640/0x640
[  271.566629]  ? pvclock_read_flags+0x160/0x160
[  271.571132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.576671]  ? check_preemption_disabled+0x48/0x280
[  271.581698]  ? __lock_is_held+0xb5/0x140
[  271.585762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.591301]  ? check_preemption_disabled+0x48/0x280
[  271.596331]  run_timer_softirq+0x52/0xb0
[  271.600396]  ? rcu_read_lock_sched_held+0x14f/0x180
[  271.605437]  __do_softirq+0x308/0xb7e
[  271.609246]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  271.613743]  ? lock_downgrade+0x900/0x900
[  271.617900]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  271.623022]  ? pvclock_read_flags+0x160/0x160
[  271.627527]  ? lapic_next_event+0x5a/0x90
[  271.631681]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.637231]  ? kvm_clock_read+0x18/0x30
[  271.641208]  ? kvm_sched_clock_read+0x9/0x20
[  271.645623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.651169]  ? check_preemption_disabled+0x48/0x280
[  271.656194]  irq_exit+0x17f/0x1c0
[  271.659652]  smp_apic_timer_interrupt+0x1cb/0x760
[  271.664494]  ? smp_call_function_single_interrupt+0x159/0x650
[  271.670391]  ? smp_call_function_single_interrupt+0x650/0x650
[  271.676280]  ? interrupt_entry+0xb5/0xc0
[  271.680344]  ? trace_hardirqs_off_caller+0xbb/0x310
[  271.685360]  ? trace_hardirqs_off_caller+0xbb/0x310
[  271.690383]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.695232]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.700251]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.705284]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.710140]  apic_timer_interrupt+0xf/0x20
[  271.714371]  </IRQ>
[  271.716613] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  271.721545] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  271.741711] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  271.749422] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  271.756697] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  271.763965] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  271.771230] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  271.778497] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  271.785827]  skb_clone+0x1bb/0x500
[  271.789379]  ? skb_split+0x11e0/0x11e0
[  271.793270]  ? check_preemption_disabled+0x48/0x280
[  271.798292]  ? __this_cpu_preempt_check+0x1c/0x20
[  271.803137]  ? __bpf_redirect+0x54b/0xb20
[  271.807292]  bpf_clone_redirect+0xb9/0x490
[  271.811541]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  271.816565]  ? __sched_text_start+0x8/0x8
[  271.820719]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  271.825489]  ? find_held_lock+0x36/0x1c0
[  271.829565]  ? lock_acquire+0x1ed/0x520
[  271.833546]  ? bpf_test_run+0x3cb/0x780
[  271.837533]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.843076]  ? check_preemption_disabled+0x48/0x280
[  271.848106]  ? kasan_check_read+0x11/0x20
[  271.852258]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.857542]  ? rcu_softirq_qs+0x20/0x20
[  271.861527]  ? preempt_schedule+0x4d/0x60
[  271.865680]  ? ___preempt_schedule+0x16/0x18
[  271.870100]  ? bpf_test_run+0x25d/0x780
[  271.874086]  ? netlink_diag_dump+0x2a0/0x2a0
[  271.878516]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  271.883774]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  271.888547]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  271.893393]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  271.898940]  ? fput+0x130/0x1a0
[  271.902225]  ? __bpf_prog_get+0x9b/0x290
[  271.906290]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  271.911130]  ? bpf_prog_test_run+0x130/0x1a0
[  271.915549]  ? __x64_sys_bpf+0x3d8/0x520
[  271.919611]  ? bpf_prog_get+0x20/0x20
[  271.923434]  ? do_syscall_64+0x1b9/0x820
[  271.927495]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  271.932865]  ? syscall_return_slowpath+0x5e0/0x5e0
[  271.937797]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.942647]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.947665]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  271.952694]  ? prepare_exit_to_usermode+0x291/0x3b0
[  271.957720]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.962576]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  271.967965] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  271.968055] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  271.974921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  271.974927] Call Trace:
[  271.974935]  <IRQ>
[  271.974952]  dump_stack+0x244/0x39d
[  271.974970]  ? dump_stack_print_info.cold.1+0x20/0x20
[  271.974998]  warn_alloc.cold.116+0xb7/0x1bd
[  271.981538] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  271.990818]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  271.993376] syz-executor4 cpuset=syz4 mems_allowed=0
[  271.995531]  ? lock_downgrade+0x900/0x900
[  272.033151]  ? trace_hardirqs_off+0xb8/0x310
[  272.037565]  ? trace_hardirqs_off+0xb8/0x310
[  272.041985]  __alloc_pages_slowpath+0x26e8/0x2e10
[  272.046864]  ? warn_alloc+0x120/0x120
[  272.050669]  ? print_usage_bug+0xc0/0xc0
[  272.054731]  ? warn_alloc+0x120/0x120
[  272.058530]  ? zap_class+0x640/0x640
[  272.062246]  ? warn_alloc+0x120/0x120
[  272.066055]  ? print_usage_bug+0xc0/0xc0
[  272.070125]  ? print_usage_bug+0xc0/0xc0
[  272.074189]  ? __lock_acquire+0x62f/0x4c20
[  272.078436]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.083983]  ? should_fail+0x22d/0xd01
[  272.088193]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.093307]  ? __lock_acquire+0x62f/0x4c20
[  272.097551]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.102654]  ? __lock_acquire+0x62f/0x4c20
[  272.106886]  ? should_fail+0x22d/0xd01
[  272.110786]  ? find_held_lock+0x36/0x1c0
[  272.114858]  ? mark_held_locks+0x130/0x130
[  272.119099]  ? mark_held_locks+0x130/0x130
[  272.123337]  ? zap_class+0x640/0x640
[  272.127055]  ? zap_class+0x640/0x640
[  272.130781]  ? print_usage_bug+0xc0/0xc0
[  272.134842]  ? do_raw_spin_unlock+0xa7/0x330
[  272.139254]  ? zap_class+0x640/0x640
[  272.142968]  ? print_usage_bug+0xc0/0xc0
[  272.147033]  ? wq_watchdog_touch+0x9c/0xfe
[  272.151279]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.156823]  ? check_preemption_disabled+0x48/0x280
[  272.161854]  ? __lock_is_held+0xb5/0x140
[  272.165936]  __alloc_pages_nodemask+0xa80/0xde0
[  272.170616]  ? zap_class+0x640/0x640
[  272.174340]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  272.179371]  ? find_held_lock+0x36/0x1c0
[  272.183443]  ? ____cache_alloc_node+0x1c7/0x1e0
[  272.188119]  ? lock_downgrade+0x900/0x900
[  272.192276]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.197843]  cache_grow_begin+0xa5/0x8c0
[  272.201915]  ? do_raw_spin_unlock+0xa7/0x330
[  272.206331]  fallback_alloc+0x204/0x2e0
[  272.210313]  ____cache_alloc_node+0x1c7/0x1e0
[  272.214818]  kmem_cache_alloc_node+0xe3/0x730
[  272.219318]  ? ipv6_get_ifaddr+0x42e/0x620
[  272.223573]  __alloc_skb+0x119/0x770
[  272.227292]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.232574]  ? netdev_alloc_frag+0x1f0/0x1f0
[  272.236985]  ? lock_downgrade+0x900/0x900
[  272.241146]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.246687]  ? refcount_sub_and_test_checked+0x203/0x310
[  272.252156]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  272.257619]  ? addrconf_rs_timer+0x690/0x690
[  272.262054]  ndisc_alloc_skb+0x144/0x340
[  272.266129]  ndisc_send_rs+0x331/0x6e0
[  272.270036]  addrconf_rs_timer+0x314/0x690
[  272.274279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.278526]  call_timer_fn+0x272/0x920
[  272.282413]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.286651]  ? process_timeout+0x40/0x40
[  272.290729]  ? mark_held_locks+0xc7/0x130
[  272.294884]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.299382]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.303876]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.308121]  ? lockdep_hardirqs_on+0x296/0x5b0
[  272.312711]  ? trace_hardirqs_on+0xbd/0x310
[  272.317039]  ? kasan_check_read+0x11/0x20
[  272.321186]  ? __run_timers+0x7da/0xc70
[  272.325160]  ? trace_hardirqs_off_caller+0x310/0x310
[  272.330270]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.334513]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.338748]  __run_timers+0x7e5/0xc70
[  272.342561]  ? timer_fixup_init+0x70/0x70
[  272.346713]  ? kasan_check_read+0x11/0x20
[  272.350866]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.356145]  ? rcu_softirq_qs+0x20/0x20
[  272.360130]  ? mark_held_locks+0xc7/0x130
[  272.364285]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  272.369050]  ? retint_kernel+0x2d/0x2d
[  272.372951]  ? trace_hardirqs_on_caller+0xc0/0x310
[  272.378059]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  272.382817]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  272.388273]  ? zap_class+0x640/0x640
[  272.391997]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.397547]  ? check_preemption_disabled+0x48/0x280
[  272.402577]  ? __lock_is_held+0xb5/0x140
[  272.406640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.412181]  ? check_preemption_disabled+0x48/0x280
[  272.417202]  run_timer_softirq+0x52/0xb0
[  272.421268]  ? rcu_read_lock_sched_held+0x14f/0x180
[  272.426293]  __do_softirq+0x308/0xb7e
[  272.430097]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  272.434592]  ? lock_downgrade+0x900/0x900
[  272.438745]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  272.443859]  ? pvclock_read_flags+0x160/0x160
[  272.448357]  ? lapic_next_event+0x5a/0x90
[  272.452511]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.458055]  ? kvm_clock_read+0x18/0x30
[  272.462037]  ? kvm_sched_clock_read+0x9/0x20
[  272.466449]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.471994]  ? check_preemption_disabled+0x48/0x280
[  272.477030]  irq_exit+0x17f/0x1c0
[  272.480494]  smp_apic_timer_interrupt+0x1cb/0x760
[  272.485367]  ? smp_call_function_single_interrupt+0x650/0x650
[  272.491262]  ? interrupt_entry+0xb5/0xc0
[  272.495329]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.500349]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.505369]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.510215]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.515230]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.520250]  ? task_prio+0x50/0x50
[  272.523797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.529344]  ? check_preemption_disabled+0x48/0x280
[  272.534373]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.539228]  apic_timer_interrupt+0xf/0x20
[  272.543460]  </IRQ>
[  272.545704] RIP: 0010:dump_stack+0x358/0x39d
[  272.550119] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  272.569040] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  272.576752] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  272.584023] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  272.591293] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  272.598562] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  272.605832] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  272.613125]  ? dump_stack+0x34f/0x39d
[  272.616945]  ? dump_stack_print_info.cold.1+0x20/0x20
[  272.622142]  ? mark_held_locks+0x130/0x130
[  272.626427]  ? mark_held_locks+0x130/0x130
[  272.630671]  dump_header+0x27b/0xf72
[  272.634402]  ? pagefault_out_of_memory+0x197/0x197
[  272.639350]  ? __lock_acquire+0x62f/0x4c20
[  272.643591]  ? percpu_ref_get_many+0x240/0x240
[  272.648178]  ? print_usage_bug+0xc0/0xc0
[  272.652249]  ? zap_class+0x640/0x640
[  272.655966]  ? print_usage_bug+0xc0/0xc0
[  272.660203]  ? print_usage_bug+0xc0/0xc0
[  272.664270]  ? zap_class+0x640/0x640
[  272.667991]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.673540]  ? find_held_lock+0x36/0x1c0
[  272.677611]  ? mark_held_locks+0xc7/0x130
[  272.681768]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  272.686870]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  272.691977]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  272.696570]  ? trace_hardirqs_on+0xbd/0x310
[  272.700896]  ? kasan_check_read+0x11/0x20
[  272.705063]  ? ___ratelimit+0x3b4/0x672
[  272.709052]  ? trace_hardirqs_off_caller+0x310/0x310
[  272.714164]  ? trace_hardirqs_on+0x310/0x310
[  272.718580]  ? lock_downgrade+0x900/0x900
[  272.722736]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  272.727843]  ? ___ratelimit+0x3b9/0x672
[  272.731824]  ? idr_get_free+0xf70/0xf70
[  272.735805]  ? find_held_lock+0x36/0x1c0
[  272.739879]  oom_kill_process.cold.27+0x10/0x903
[  272.744646]  ? zap_class+0x640/0x640
[  272.748367]  ? check_preemption_disabled+0x48/0x280
[  272.753805]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  272.758745]  ? kasan_check_read+0x11/0x20
[  272.762903]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.768204]  ? oom_evaluate_task+0x540/0x540
[  272.772629]  ? find_held_lock+0x36/0x1c0
[  272.776709]  ? out_of_memory+0x974/0x1430
[  272.780867]  ? lock_downgrade+0x900/0x900
[  272.785023]  ? check_preemption_disabled+0x48/0x280
[  272.790048]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  272.794982]  ? kasan_check_read+0x11/0x20
[  272.799139]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.804419]  ? rcu_softirq_qs+0x20/0x20
[  272.808401]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.813950]  ? oom_evaluate_task+0x302/0x540
[  272.818422]  out_of_memory+0xa84/0x1430
[  272.822425]  ? oom_killer_disable+0x3a0/0x3a0
[  272.826928]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  272.831868]  ? __ww_mutex_check_waiters+0x160/0x160
[  272.836902]  __alloc_pages_slowpath+0x2354/0x2e10
[  272.841789]  ? warn_alloc+0x120/0x120
[  272.845593]  ? mark_held_locks+0x130/0x130
[  272.849842]  ? find_get_entry+0xaae/0x1120
[  272.854850]  ? filemap_map_pages+0x1a20/0x1a20
[  272.859454]  ? zap_class+0x640/0x640
[  272.863186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.868739]  ? check_preemption_disabled+0x48/0x280
[  272.873767]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.879317]  ? should_fail+0x22d/0xd01
[  272.883213]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.888325]  ? zap_class+0x640/0x640
[  272.892073]  ? __lock_is_held+0xb5/0x140
[  272.896145]  ? mark_held_locks+0x130/0x130
[  272.900385]  ? lock_release+0xa00/0xa00
[  272.904365]  ? perf_trace_sched_process_exec+0x860/0x860
[  272.909830]  ? xa_load+0x2ba/0x460
[  272.913386]  ? lock_downgrade+0x900/0x900
[  272.917558]  ? __might_sleep+0x95/0x190
[  272.921552]  __alloc_pages_nodemask+0xa80/0xde0
[  272.926242]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  272.931273]  ? __page_cache_alloc+0x191/0x5c0
[  272.935777]  ? xa_load+0x2e1/0x460
[  272.939415]  ? xa_clear_mark+0x40/0x40
[  272.943312]  ? zap_class+0x640/0x640
[  272.947043]  ? zap_class+0x640/0x640
[  272.950758]  ? zap_class+0x640/0x640
[  272.954476]  ? __do_page_cache_readahead+0x663/0x810
[  272.959592]  ? find_held_lock+0x36/0x1c0
[  272.963666]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  272.969223]  alloc_pages_current+0x173/0x350
[  272.973643]  __page_cache_alloc+0x38c/0x5c0
[  272.977970]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  272.982904]  ? kasan_check_read+0x11/0x20
[  272.987060]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.992342]  ? generic_perform_write+0x6a0/0x6a0
[  272.997104]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.002650]  ? check_preemption_disabled+0x48/0x280
[  273.007701]  filemap_fault+0x1595/0x25f0
[  273.011779]  ? __lock_page_or_retry+0xa00/0xa00
[  273.016455]  ? mark_held_locks+0x130/0x130
[  273.020705]  ? filemap_map_pages+0xd6b/0x1a20
[  273.025204]  ? lock_downgrade+0x900/0x900
[  273.029355]  ? check_preemption_disabled+0x48/0x280
[  273.034380]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.039313]  ? kasan_check_read+0x11/0x20
[  273.043460]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.048740]  ? rcu_softirq_qs+0x20/0x20
[  273.052732]  ? filemap_map_pages+0xd92/0x1a20
[  273.057241]  ? find_get_entries_tag+0x1400/0x1400
[  273.062088]  ? find_held_lock+0x36/0x1c0
[  273.066172]  ? lock_acquire+0x1ed/0x520
[  273.070150]  ? ext4_filemap_fault+0x7a/0xad
[  273.074479]  ? lock_release+0xa00/0xa00
[  273.078459]  ? perf_trace_sched_process_exec+0x860/0x860
[  273.083929]  ? print_usage_bug+0xc0/0xc0
[  273.087994]  ? print_usage_bug+0xc0/0xc0
[  273.092076]  ? down_read+0x8d/0x120
[  273.095704]  ? ext4_filemap_fault+0x7a/0xad
[  273.100037]  ? __down_interruptible+0x700/0x700
[  273.104724]  ext4_filemap_fault+0x82/0xad
[  273.108897]  __do_fault+0x100/0x6b0
[  273.112536]  ? find_held_lock+0x36/0x1c0
[  273.116609]  ? pmd_devmap_trans_unstable+0x220/0x220
[  273.121737]  ? mark_held_locks+0x130/0x130
[  273.125974]  ? mark_held_locks+0x130/0x130
[  273.130233]  ? kasan_check_read+0x11/0x20
[  273.134389]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.139945]  __handle_mm_fault+0x3ea0/0x5be0
[  273.144360]  ? perf_trace_lock+0x7a0/0x7a0
[  273.148608]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  273.153462]  ? __switch_to_asm+0x34/0x70
[  273.157524]  ? __switch_to_asm+0x34/0x70
[  273.161604]  ? zap_class+0x640/0x640
[  273.165319]  ? zap_class+0x640/0x640
[  273.169035]  ? __x64_sys_futex+0x53e/0x6a0
[  273.173276]  ? find_held_lock+0x36/0x1c0
[  273.177361]  ? handle_mm_fault+0x42a/0xc70
[  273.181603]  ? lock_downgrade+0x900/0x900
[  273.185758]  ? check_preemption_disabled+0x48/0x280
[  273.190783]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.195716]  ? kasan_check_read+0x11/0x20
[  273.199869]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.205155]  ? rcu_softirq_qs+0x20/0x20
[  273.209134]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.214243]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.219786]  ? check_preemption_disabled+0x48/0x280
[  273.224834]  handle_mm_fault+0x54f/0xc70
[  273.228903]  ? __handle_mm_fault+0x5be0/0x5be0
[  273.233507]  ? find_vma+0x34/0x190
[  273.237079]  __do_page_fault+0x5e8/0xe60
[  273.241145]  ? trace_hardirqs_off+0xb8/0x310
[  273.245575]  do_page_fault+0xf2/0x7e0
[  273.249377]  ? vmalloc_sync_all+0x30/0x30
[  273.253529]  ? error_entry+0x70/0xd0
[  273.257256]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.262274]  ? trace_hardirqs_on_caller+0xc0/0x310
[  273.267214]  ? syscall_return_slowpath+0x5e0/0x5e0
[  273.272182]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.277045]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.282065]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  273.287545]  ? prepare_exit_to_usermode+0x291/0x3b0
[  273.292599]  ? page_fault+0x8/0x30
[  273.296156]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.301028]  ? page_fault+0x8/0x30
[  273.304578]  page_fault+0x1e/0x30
[  273.308042] RIP: 0033:0x44b69a
[  273.311254] Code: Bad RIP value.
[  273.314616] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  273.319977] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  273.327249] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  273.334514] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  273.341785] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  273.349060] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  273.356360] warn_alloc_show_mem: 1 callbacks suppressed
[  273.356373] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  273.356375] Mem-Info:
[  273.356407] active_anon:47227 inactive_anon:190 isolated_anon:0
[  273.356407]  active_file:11 inactive_file:14 isolated_file:0
[  273.356407]  unevictable:0 dirty:0 writeback:0 unstable:0
[  273.356407]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  273.356407]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  273.356407]  free:13756 free_pcp:235 free_cma:0
[  273.361760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  273.361770] Call Trace:
[  273.368974] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  273.371375]  <IRQ>
[  273.404261] 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
[  273.413638]  dump_stack+0x244/0x39d
[  273.416192] lowmem_reserve[]: 0 2818 6321 6321
[  273.443715]  ? dump_stack_print_info.cold.1+0x20/0x20
[  273.445839] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  273.471987]  warn_alloc.cold.116+0xb7/0x1bd
[  273.475593] lowmem_reserve[]: 0 0 3503 3503
[  273.480181]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  273.485340] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  273.512687]  ? lock_downgrade+0x900/0x900
[  273.516982] lowmem_reserve[]: 0 0 0 0
[  273.521313]  ? trace_hardirqs_off+0xb8/0x310
[  273.526123] 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
[  273.555046]  ? trace_hardirqs_off+0xb8/0x310
[  273.559186] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  273.563001]  __alloc_pages_slowpath+0x26e8/0x2e10
[  273.567380] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  273.580952]  ? warn_alloc+0x120/0x120
[  273.585327] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  273.600596]  ? print_usage_bug+0xc0/0xc0
[  273.605427] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  273.620534]  ? warn_alloc+0x120/0x120
[  273.624309] 269 total pagecache pages
[  273.633153]  ? warn_alloc+0x120/0x120
[  273.637194] 0 pages in swap cache
[  273.645778]  ? print_usage_bug+0xc0/0xc0
[  273.649555] Swap cache stats: add 0, delete 0, find 0/0
[  273.653354]  ? print_usage_bug+0xc0/0xc0
[  273.657116] Free swap  = 0kB
[  273.657126] Total swap = 0kB
[  273.660582]  ? __lock_acquire+0x62f/0x4c20
[  273.664612] 1965979 pages RAM
[  273.669983]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.674012] 0 pages HighMem/MovableOnly
[  273.674022] 342853 pages reserved
[  273.677041]  ? should_fail+0x22d/0xd01
[  273.680035] 0 pages cma reserved
[  273.684272]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.687432] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  273.692885]  ? __lock_acquire+0x62f/0x4c20
[  273.692916]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.692934]  ? __lock_acquire+0x62f/0x4c20
[  273.696972] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  273.700353]  ? should_fail+0x22d/0xd01
[  273.704214] syz-fuzzer cpuset=/ mems_allowed=0
[  273.707583]  ? find_held_lock+0x36/0x1c0
[  273.755393]  ? mark_held_locks+0x130/0x130
[  273.759644]  ? mark_held_locks+0x130/0x130
[  273.763879]  ? zap_class+0x640/0x640
[  273.767605]  ? zap_class+0x640/0x640
[  273.771327]  ? print_usage_bug+0xc0/0xc0
[  273.775386]  ? do_raw_spin_unlock+0xa7/0x330
[  273.779794]  ? zap_class+0x640/0x640
[  273.783514]  ? print_usage_bug+0xc0/0xc0
[  273.787579]  ? wq_watchdog_touch+0x9c/0xfe
[  273.791822]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.797367]  ? check_preemption_disabled+0x48/0x280
[  273.802396]  ? __lock_is_held+0xb5/0x140
[  273.806467]  __alloc_pages_nodemask+0xa80/0xde0
[  273.811140]  ? zap_class+0x640/0x640
[  273.814866]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  273.819898]  ? find_held_lock+0x36/0x1c0
[  273.823983]  ? ____cache_alloc_node+0x1c7/0x1e0
[  273.828678]  ? lock_downgrade+0x900/0x900
[  273.832863]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.838411]  cache_grow_begin+0xa5/0x8c0
[  273.842476]  ? do_raw_spin_unlock+0xa7/0x330
[  273.846899]  fallback_alloc+0x204/0x2e0
[  273.850890]  ____cache_alloc_node+0x1c7/0x1e0
[  273.855401]  kmem_cache_alloc_node+0xe3/0x730
[  273.859900]  ? ipv6_get_ifaddr+0x42e/0x620
[  273.864158]  __alloc_skb+0x119/0x770
[  273.867875]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.873172]  ? netdev_alloc_frag+0x1f0/0x1f0
[  273.877585]  ? lock_downgrade+0x900/0x900
[  273.881742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.887711]  ? refcount_sub_and_test_checked+0x203/0x310
[  273.893171]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  273.898631]  ? addrconf_rs_timer+0x690/0x690
[  273.903070]  ndisc_alloc_skb+0x144/0x340
[  273.907149]  ndisc_send_rs+0x331/0x6e0
[  273.911054]  addrconf_rs_timer+0x314/0x690
[  273.915304]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.919553]  call_timer_fn+0x272/0x920
[  273.923469]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.927707]  ? process_timeout+0x40/0x40
[  273.931784]  ? __run_timers+0x7da/0xc70
[  273.935769]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.940274]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.944772]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.949023]  ? lockdep_hardirqs_on+0x296/0x5b0
[  273.953621]  ? trace_hardirqs_on+0xbd/0x310
[  273.957953]  ? kasan_check_read+0x11/0x20
[  273.962105]  ? __run_timers+0x7da/0xc70
[  273.966084]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.971197]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.975529]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.979768]  __run_timers+0x7e5/0xc70
[  273.983583]  ? timer_fixup_init+0x70/0x70
[  273.987736]  ? lock_acquire+0x1ed/0x520
[  273.991719]  ? zap_class+0x640/0x640
[  273.995444]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.000998]  ? kasan_check_read+0x11/0x20
[  274.005152]  ? do_raw_spin_lock+0x14f/0x350
[  274.009488]  ? find_held_lock+0x36/0x1c0
[  274.013564]  ? zap_class+0x640/0x640
[  274.017283]  ? pvclock_read_flags+0x160/0x160
[  274.021785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.027337]  ? check_preemption_disabled+0x48/0x280
[  274.032394]  ? __lock_is_held+0xb5/0x140
[  274.036476]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.042050]  ? check_preemption_disabled+0x48/0x280
[  274.047103]  run_timer_softirq+0x52/0xb0
[  274.051190]  ? rcu_read_lock_sched_held+0x14f/0x180
[  274.056436]  __do_softirq+0x308/0xb7e
[  274.061049]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  274.066404]  ? lock_downgrade+0x900/0x900
[  274.070574]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  274.075729]  ? pvclock_read_flags+0x160/0x160
[  274.080236]  ? lapic_next_event+0x5a/0x90
[  274.084394]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.089947]  ? kvm_clock_read+0x18/0x30
[  274.093933]  ? kvm_sched_clock_read+0x9/0x20
[  274.098351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.103904]  ? check_preemption_disabled+0x48/0x280
[  274.108951]  irq_exit+0x17f/0x1c0
[  274.112412]  smp_apic_timer_interrupt+0x1cb/0x760
[  274.117279]  ? smp_call_function_single_interrupt+0x159/0x650
[  274.123170]  ? smp_call_function_single_interrupt+0x650/0x650
[  274.129060]  ? interrupt_entry+0xb5/0xc0
[  274.133127]  ? trace_hardirqs_off_caller+0xbb/0x310
[  274.138148]  ? trace_hardirqs_off_caller+0xbb/0x310
[  274.143173]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.148021]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.153040]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.158072]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.162936]  apic_timer_interrupt+0xf/0x20
[  274.167173]  </IRQ>
[  274.169418] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  274.174355] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  274.193272] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  274.200997] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  274.208271] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  274.215548] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  274.222824] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  274.230102] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  274.237421]  skb_clone+0x1bb/0x500
[  274.240972]  ? skb_split+0x11e0/0x11e0
[  274.244870]  ? check_preemption_disabled+0x48/0x280
[  274.249895]  ? __this_cpu_preempt_check+0x1c/0x20
[  274.254749]  ? __bpf_redirect+0x54b/0xb20
[  274.258905]  bpf_clone_redirect+0xb9/0x490
[  274.263160]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  274.268193]  ? __sched_text_start+0x8/0x8
[  274.272348]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  274.277123]  ? find_held_lock+0x36/0x1c0
[  274.281198]  ? lock_acquire+0x1ed/0x520
[  274.285181]  ? bpf_test_run+0x3cb/0x780
[  274.289161]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.294703]  ? check_preemption_disabled+0x48/0x280
[  274.299733]  ? kasan_check_read+0x11/0x20
[  274.303882]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.309169]  ? rcu_softirq_qs+0x20/0x20
[  274.313147]  ? preempt_schedule+0x4d/0x60
[  274.317300]  ? ___preempt_schedule+0x16/0x18
[  274.321721]  ? bpf_test_run+0x25d/0x780
[  274.325714]  ? netlink_diag_dump+0x2a0/0x2a0
[  274.330130]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  274.334893]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  274.339669]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  274.344520]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  274.350067]  ? fput+0x130/0x1a0
[  274.353351]  ? __bpf_prog_get+0x9b/0x290
[  274.357417]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  274.362263]  ? bpf_prog_test_run+0x130/0x1a0
[  274.366677]  ? __x64_sys_bpf+0x3d8/0x520
[  274.370740]  ? bpf_prog_get+0x20/0x20
[  274.374565]  ? do_syscall_64+0x1b9/0x820
[  274.378631]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  274.384006]  ? syscall_return_slowpath+0x5e0/0x5e0
[  274.388949]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.393800]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.399537]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  274.405356]  ? prepare_exit_to_usermode+0x291/0x3b0
[  274.410837]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.415694]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  274.421080] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  274.421171] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  274.428019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  274.428025] Call Trace:
[  274.428032]  <IRQ>
[  274.428051]  dump_stack+0x244/0x39d
[  274.428075]  ? dump_stack_print_info.cold.1+0x20/0x20
[  274.434651] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  274.443920]  warn_alloc.cold.116+0xb7/0x1bd
[  274.446474] syz-executor4 cpuset=syz4 mems_allowed=0
[  274.448618]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  274.482102]  ? lock_downgrade+0x900/0x900
[  274.486263]  ? trace_hardirqs_off+0xb8/0x310
[  274.490683]  ? trace_hardirqs_off+0xb8/0x310
[  274.495108]  __alloc_pages_slowpath+0x26e8/0x2e10
[  274.499982]  ? warn_alloc+0x120/0x120
[  274.503793]  ? print_usage_bug+0xc0/0xc0
[  274.507855]  ? warn_alloc+0x120/0x120
[  274.511659]  ? warn_alloc+0x120/0x120
[  274.515467]  ? print_usage_bug+0xc0/0xc0
[  274.519541]  ? print_usage_bug+0xc0/0xc0
[  274.523611]  ? __lock_acquire+0x62f/0x4c20
[  274.527854]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.533395]  ? should_fail+0x22d/0xd01
[  274.537294]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.542399]  ? __lock_acquire+0x62f/0x4c20
[  274.546644]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.551746]  ? __lock_acquire+0x62f/0x4c20
[  274.555985]  ? should_fail+0x22d/0xd01
[  274.559875]  ? find_held_lock+0x36/0x1c0
[  274.563954]  ? mark_held_locks+0x130/0x130
[  274.568195]  ? mark_held_locks+0x130/0x130
[  274.572429]  ? zap_class+0x640/0x640
[  274.576143]  ? zap_class+0x640/0x640
[  274.579861]  ? print_usage_bug+0xc0/0xc0
[  274.583929]  ? do_raw_spin_unlock+0xa7/0x330
[  274.588340]  ? zap_class+0x640/0x640
[  274.592055]  ? print_usage_bug+0xc0/0xc0
[  274.596118]  ? wq_watchdog_touch+0x9c/0xfe
[  274.600358]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.605899]  ? check_preemption_disabled+0x48/0x280
[  274.610941]  ? __lock_is_held+0xb5/0x140
[  274.615016]  __alloc_pages_nodemask+0xa80/0xde0
[  274.619689]  ? zap_class+0x640/0x640
[  274.623408]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  274.628441]  ? find_held_lock+0x36/0x1c0
[  274.632519]  ? ____cache_alloc_node+0x1c7/0x1e0
[  274.637195]  ? lock_downgrade+0x900/0x900
[  274.641353]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.646902]  cache_grow_begin+0xa5/0x8c0
[  274.650975]  ? do_raw_spin_unlock+0xa7/0x330
[  274.655398]  fallback_alloc+0x204/0x2e0
[  274.659384]  ____cache_alloc_node+0x1c7/0x1e0
[  274.663886]  kmem_cache_alloc_node+0xe3/0x730
[  274.668390]  ? ipv6_get_ifaddr+0x42e/0x620
[  274.672637]  __alloc_skb+0x119/0x770
[  274.676352]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.681635]  ? netdev_alloc_frag+0x1f0/0x1f0
[  274.686047]  ? lock_downgrade+0x900/0x900
[  274.690204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.695750]  ? refcount_sub_and_test_checked+0x203/0x310
[  274.701215]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  274.706670]  ? addrconf_rs_timer+0x690/0x690
[  274.711092]  ndisc_alloc_skb+0x144/0x340
[  274.715160]  ndisc_send_rs+0x331/0x6e0
[  274.719055]  addrconf_rs_timer+0x314/0x690
[  274.723297]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.727545]  call_timer_fn+0x272/0x920
[  274.731434]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.735672]  ? process_timeout+0x40/0x40
[  274.739749]  ? mark_held_locks+0xc7/0x130
[  274.743903]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.748406]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.753285]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.757527]  ? lockdep_hardirqs_on+0x296/0x5b0
[  274.762114]  ? trace_hardirqs_on+0xbd/0x310
[  274.766446]  ? kasan_check_read+0x11/0x20
[  274.770595]  ? __run_timers+0x7da/0xc70
[  274.774574]  ? trace_hardirqs_off_caller+0x310/0x310
[  274.779692]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.783957]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.788195]  __run_timers+0x7e5/0xc70
[  274.792006]  ? timer_fixup_init+0x70/0x70
[  274.796165]  ? kasan_check_read+0x11/0x20
[  274.800318]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.805595]  ? rcu_softirq_qs+0x20/0x20
[  274.809578]  ? mark_held_locks+0xc7/0x130
[  274.813738]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  274.818506]  ? retint_kernel+0x2d/0x2d
[  274.822414]  ? trace_hardirqs_on_caller+0xc0/0x310
[  274.827357]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  274.832117]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  274.837577]  ? zap_class+0x640/0x640
[  274.841300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.846842]  ? check_preemption_disabled+0x48/0x280
[  274.851875]  ? __lock_is_held+0xb5/0x140
[  274.855949]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.861492]  ? check_preemption_disabled+0x48/0x280
[  274.866519]  run_timer_softirq+0x52/0xb0
[  274.870587]  ? rcu_read_lock_sched_held+0x14f/0x180
[  274.875609]  __do_softirq+0x308/0xb7e
[  274.879419]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  274.883927]  ? lock_downgrade+0x900/0x900
[  274.888083]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  274.893196]  ? pvclock_read_flags+0x160/0x160
[  274.897698]  ? lapic_next_event+0x5a/0x90
[  274.901850]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.907396]  ? kvm_clock_read+0x18/0x30
[  274.911375]  ? kvm_sched_clock_read+0x9/0x20
[  274.915789]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.921332]  ? check_preemption_disabled+0x48/0x280
[  274.926359]  irq_exit+0x17f/0x1c0
[  274.929818]  smp_apic_timer_interrupt+0x1cb/0x760
[  274.934681]  ? smp_call_function_single_interrupt+0x650/0x650
[  274.940564]  ? interrupt_entry+0xb5/0xc0
[  274.944630]  ? trace_hardirqs_off_caller+0xbb/0x310
[  274.949647]  ? trace_hardirqs_off_caller+0xbb/0x310
[  274.954671]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.959520]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.964536]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.969559]  ? task_prio+0x50/0x50
[  274.973108]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.978658]  ? check_preemption_disabled+0x48/0x280
[  274.983685]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.988555]  apic_timer_interrupt+0xf/0x20
[  274.992785]  </IRQ>
[  274.995032] RIP: 0010:dump_stack+0x358/0x39d
[  274.999442] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  275.018347] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  275.026059] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  275.033328] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  275.040594] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  275.047861] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  275.055132] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  275.062432]  ? dump_stack+0x34f/0x39d
[  275.066247]  ? dump_stack_print_info.cold.1+0x20/0x20
[  275.071443]  ? mark_held_locks+0x130/0x130
[  275.075678]  ? mark_held_locks+0x130/0x130
[  275.079930]  dump_header+0x27b/0xf72
[  275.083663]  ? pagefault_out_of_memory+0x197/0x197
[  275.088604]  ? __lock_acquire+0x62f/0x4c20
[  275.092847]  ? percpu_ref_get_many+0x240/0x240
[  275.097435]  ? print_usage_bug+0xc0/0xc0
[  275.101504]  ? zap_class+0x640/0x640
[  275.105223]  ? print_usage_bug+0xc0/0xc0
[  275.109282]  ? print_usage_bug+0xc0/0xc0
[  275.113344]  ? zap_class+0x640/0x640
[  275.117067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.122609]  ? find_held_lock+0x36/0x1c0
[  275.126684]  ? mark_held_locks+0xc7/0x130
[  275.130836]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  275.135944]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  275.141060]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  275.145648]  ? trace_hardirqs_on+0xbd/0x310
[  275.149973]  ? kasan_check_read+0x11/0x20
[  275.154122]  ? ___ratelimit+0x3b4/0x672
[  275.158099]  ? trace_hardirqs_off_caller+0x310/0x310
[  275.163207]  ? trace_hardirqs_on+0x310/0x310
[  275.167624]  ? lock_downgrade+0x900/0x900
[  275.171784]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  275.176897]  ? ___ratelimit+0x3b9/0x672
[  275.180904]  ? idr_get_free+0xf70/0xf70
[  275.185022]  ? find_held_lock+0x36/0x1c0
[  275.189101]  oom_kill_process.cold.27+0x10/0x903
[  275.193862]  ? zap_class+0x640/0x640
[  275.197579]  ? check_preemption_disabled+0x48/0x280
[  275.202603]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.207539]  ? kasan_check_read+0x11/0x20
[  275.211696]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.216979]  ? oom_evaluate_task+0x540/0x540
[  275.221421]  ? find_held_lock+0x36/0x1c0
[  275.225495]  ? out_of_memory+0x974/0x1430
[  275.229654]  ? lock_downgrade+0x900/0x900
[  275.233811]  ? check_preemption_disabled+0x48/0x280
[  275.238837]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.243774]  ? kasan_check_read+0x11/0x20
[  275.247931]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.253217]  ? rcu_softirq_qs+0x20/0x20
[  275.257205]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.262750]  ? oom_evaluate_task+0x302/0x540
[  275.267168]  out_of_memory+0xa84/0x1430
[  275.271173]  ? oom_killer_disable+0x3a0/0x3a0
[  275.275687]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  275.280627]  ? __ww_mutex_check_waiters+0x160/0x160
[  275.285674]  __alloc_pages_slowpath+0x2354/0x2e10
[  275.290553]  ? warn_alloc+0x120/0x120
[  275.294364]  ? mark_held_locks+0x130/0x130
[  275.298612]  ? find_get_entry+0xaae/0x1120
[  275.302867]  ? filemap_map_pages+0x1a20/0x1a20
[  275.307459]  ? zap_class+0x640/0x640
[  275.311186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.316734]  ? check_preemption_disabled+0x48/0x280
[  275.321757]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.327301]  ? should_fail+0x22d/0xd01
[  275.331200]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  275.336312]  ? zap_class+0x640/0x640
[  275.340062]  ? __lock_is_held+0xb5/0x140
[  275.344136]  ? mark_held_locks+0x130/0x130
[  275.348378]  ? lock_release+0xa00/0xa00
[  275.352357]  ? perf_trace_sched_process_exec+0x860/0x860
[  275.357825]  ? xa_load+0x2ba/0x460
[  275.361369]  ? lock_downgrade+0x900/0x900
[  275.365528]  ? __might_sleep+0x95/0x190
[  275.369519]  __alloc_pages_nodemask+0xa80/0xde0
[  275.374208]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  275.379229]  ? __page_cache_alloc+0x191/0x5c0
[  275.383738]  ? xa_load+0x2e1/0x460
[  275.387310]  ? xa_clear_mark+0x40/0x40
[  275.391215]  ? zap_class+0x640/0x640
[  275.394947]  ? zap_class+0x640/0x640
[  275.398662]  ? zap_class+0x640/0x640
[  275.402379]  ? __do_page_cache_readahead+0x663/0x810
[  275.407512]  ? find_held_lock+0x36/0x1c0
[  275.411586]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  275.417139]  alloc_pages_current+0x173/0x350
[  275.421572]  __page_cache_alloc+0x38c/0x5c0
[  275.425900]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.430848]  ? kasan_check_read+0x11/0x20
[  275.435007]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.440297]  ? generic_perform_write+0x6a0/0x6a0
[  275.445061]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.450605]  ? check_preemption_disabled+0x48/0x280
[  275.455643]  filemap_fault+0x1595/0x25f0
[  275.459725]  ? __lock_page_or_retry+0xa00/0xa00
[  275.464403]  ? mark_held_locks+0x130/0x130
[  275.468663]  ? filemap_map_pages+0xd6b/0x1a20
[  275.473167]  ? lock_downgrade+0x900/0x900
[  275.477334]  ? check_preemption_disabled+0x48/0x280
[  275.482356]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.487291]  ? kasan_check_read+0x11/0x20
[  275.491450]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.496733]  ? rcu_softirq_qs+0x20/0x20
[  275.500729]  ? filemap_map_pages+0xd92/0x1a20
[  275.505242]  ? find_get_entries_tag+0x1400/0x1400
[  275.510090]  ? find_held_lock+0x36/0x1c0
[  275.514185]  ? lock_acquire+0x1ed/0x520
[  275.518174]  ? ext4_filemap_fault+0x7a/0xad
[  275.522505]  ? lock_release+0xa00/0xa00
[  275.526484]  ? perf_trace_sched_process_exec+0x860/0x860
[  275.531949]  ? print_usage_bug+0xc0/0xc0
[  275.536024]  ? print_usage_bug+0xc0/0xc0
[  275.540104]  ? down_read+0x8d/0x120
[  275.543734]  ? ext4_filemap_fault+0x7a/0xad
[  275.548069]  ? __down_interruptible+0x700/0x700
[  275.552748]  ext4_filemap_fault+0x82/0xad
[  275.556904]  __do_fault+0x100/0x6b0
[  275.560544]  ? find_held_lock+0x36/0x1c0
[  275.564615]  ? pmd_devmap_trans_unstable+0x220/0x220
[  275.569747]  ? mark_held_locks+0x130/0x130
[  275.573991]  ? mark_held_locks+0x130/0x130
[  275.578243]  ? kasan_check_read+0x11/0x20
[  275.582394]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.587947]  __handle_mm_fault+0x3ea0/0x5be0
[  275.592365]  ? perf_trace_lock+0x7a0/0x7a0
[  275.596612]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  275.601464]  ? __switch_to_asm+0x34/0x70
[  275.605529]  ? __switch_to_asm+0x34/0x70
[  275.609627]  ? zap_class+0x640/0x640
[  275.613342]  ? zap_class+0x640/0x640
[  275.617066]  ? __x64_sys_futex+0x53e/0x6a0
[  275.621319]  ? find_held_lock+0x36/0x1c0
[  275.625426]  ? handle_mm_fault+0x42a/0xc70
[  275.629673]  ? lock_downgrade+0x900/0x900
[  275.633834]  ? check_preemption_disabled+0x48/0x280
[  275.638862]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  275.643800]  ? kasan_check_read+0x11/0x20
[  275.647953]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.653239]  ? rcu_softirq_qs+0x20/0x20
[  275.657222]  ? trace_hardirqs_off_caller+0x310/0x310
[  275.662333]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.667883]  ? check_preemption_disabled+0x48/0x280
[  275.672928]  handle_mm_fault+0x54f/0xc70
[  275.677008]  ? __handle_mm_fault+0x5be0/0x5be0
[  275.681610]  ? find_vma+0x34/0x190
[  275.685161]  __do_page_fault+0x5e8/0xe60
[  275.689228]  ? trace_hardirqs_off+0xb8/0x310
[  275.693646]  do_page_fault+0xf2/0x7e0
[  275.697455]  ? vmalloc_sync_all+0x30/0x30
[  275.701617]  ? error_entry+0x70/0xd0
[  275.705337]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.710360]  ? trace_hardirqs_on_caller+0xc0/0x310
[  275.715295]  ? syscall_return_slowpath+0x5e0/0x5e0
[  275.720228]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.725077]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.730099]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  275.735561]  ? prepare_exit_to_usermode+0x291/0x3b0
[  275.740583]  ? page_fault+0x8/0x30
[  275.744135]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.748988]  ? page_fault+0x8/0x30
[  275.752538]  page_fault+0x1e/0x30
[  275.756005] RIP: 0033:0x44b69a
[  275.759225] Code: Bad RIP value.
[  275.762587] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  275.767960] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  275.775236] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  275.782510] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  275.789786] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  275.797062] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  275.804363] warn_alloc_show_mem: 1 callbacks suppressed
[  275.804376] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  275.804378] Mem-Info:
[  275.804412] active_anon:47227 inactive_anon:190 isolated_anon:0
[  275.804412]  active_file:11 inactive_file:14 isolated_file:0
[  275.804412]  unevictable:0 dirty:0 writeback:0 unstable:0
[  275.804412]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  275.804412]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  275.804412]  free:13756 free_pcp:235 free_cma:0
[  275.809760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  275.816970] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  275.819371] Call Trace:
[  275.852257] 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
[  275.861620]  <IRQ>
[  275.889284] lowmem_reserve[]: 0 2818 6321 6321
[  275.891915]  dump_stack+0x244/0x39d
[  275.918015] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  275.920183]  ? dump_stack_print_info.cold.1+0x20/0x20
[  275.924722] lowmem_reserve[]: 0 0 3503 3503
[  275.928367]  warn_alloc.cold.116+0xb7/0x1bd
[  275.955674] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  275.960880]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  275.965172] lowmem_reserve[]: 0 0 0 0
[  275.969504]  ? lock_downgrade+0x900/0x900
[  275.998392] 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
[  276.003270]  ? trace_hardirqs_off+0xb8/0x310
[  276.007038] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  276.011194]  ? trace_hardirqs_off+0xb8/0x310
[  276.024697] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  276.029125]  __alloc_pages_slowpath+0x26e8/0x2e10
[  276.044370] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  276.048814]  ? warn_alloc+0x120/0x120
[  276.063868] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  276.068718]  ? print_usage_bug+0xc0/0xc0
[  276.077520] 269 total pagecache pages
[  276.077539] 0 pages in swap cache
[  276.081351]  ? warn_alloc+0x120/0x120
[  276.089904] Swap cache stats: add 0, delete 0, find 0/0
[  276.093985]  ? warn_alloc+0x120/0x120
[  276.097748] Free swap  = 0kB
[  276.097757] Total swap = 0kB
[  276.101212]  ? print_usage_bug+0xc0/0xc0
[  276.104982] 1965979 pages RAM
[  276.110351]  ? kvm_clock_read+0x18/0x30
[  276.114125] 0 pages HighMem/MovableOnly
[  276.117140]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  276.120132] 342853 pages reserved
[  276.124194]  ? print_usage_bug+0xc0/0xc0
[  276.127272] 0 pages cma reserved
[  276.131243]  ? __lock_acquire+0x62f/0x4c20
[  276.135269] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  276.140206]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.143733] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  276.147694]  ? should_fail+0x22d/0xd01
[  276.151040] syz-fuzzer cpuset=/ mems_allowed=0
[  276.155271]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.191257]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.196389]  ? __lock_acquire+0x62f/0x4c20
[  276.200645]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.205768]  ? __lock_acquire+0x62f/0x4c20
[  276.210022]  ? should_fail+0x22d/0xd01
[  276.213922]  ? rcu_irq_exit+0x1a2/0x390
[  276.217924]  ? mark_held_locks+0x130/0x130
[  276.222174]  ? mark_held_locks+0x130/0x130
[  276.226421]  ? mark_held_locks+0xc7/0x130
[  276.230580]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  276.235600]  ? zap_class+0x640/0x640
[  276.239322]  ? print_usage_bug+0xc0/0xc0
[  276.243391]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.248942]  ? check_preemption_disabled+0x48/0x280
[  276.253990]  ? __lock_is_held+0xb5/0x140
[  276.258078]  __alloc_pages_nodemask+0xa80/0xde0
[  276.262772]  ? zap_class+0x640/0x640
[  276.266499]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  276.271549]  ? find_held_lock+0x36/0x1c0
[  276.275630]  ? ____cache_alloc_node+0x1c7/0x1e0
[  276.280317]  ? lock_downgrade+0x900/0x900
[  276.284481]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.290036]  cache_grow_begin+0xa5/0x8c0
[  276.294109]  ? do_raw_spin_unlock+0xa7/0x330
[  276.298552]  fallback_alloc+0x204/0x2e0
[  276.302547]  ____cache_alloc_node+0x1c7/0x1e0
[  276.307073]  kmem_cache_alloc_node+0xe3/0x730
[  276.311586]  ? ipv6_get_ifaddr+0x42e/0x620
[  276.315845]  __alloc_skb+0x119/0x770
[  276.319586]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.324875]  ? netdev_alloc_frag+0x1f0/0x1f0
[  276.329305]  ? lock_downgrade+0x900/0x900
[  276.333471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.339015]  ? refcount_sub_and_test_checked+0x203/0x310
[  276.344476]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  276.349946]  ? addrconf_rs_timer+0x690/0x690
[  276.354374]  ndisc_alloc_skb+0x144/0x340
[  276.358449]  ndisc_send_rs+0x331/0x6e0
[  276.362346]  addrconf_rs_timer+0x314/0x690
[  276.366593]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.370848]  call_timer_fn+0x272/0x920
[  276.374741]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.378983]  ? process_timeout+0x40/0x40
[  276.383057]  ? __run_timers+0x7da/0xc70
[  276.387040]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.391545]  ? _raw_spin_unlock_irq+0x27/0x80
[  276.396047]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.400289]  ? lockdep_hardirqs_on+0x296/0x5b0
[  276.404879]  ? trace_hardirqs_on+0xbd/0x310
[  276.409218]  ? kasan_check_read+0x11/0x20
[  276.413387]  ? __run_timers+0x7da/0xc70
[  276.417367]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.422497]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.426744]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  276.430981]  __run_timers+0x7e5/0xc70
[  276.434794]  ? timer_fixup_init+0x70/0x70
[  276.438958]  ? lock_acquire+0x1ed/0x520
[  276.442942]  ? zap_class+0x640/0x640
[  276.446664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.452216]  ? kasan_check_read+0x11/0x20
[  276.456370]  ? do_raw_spin_lock+0x14f/0x350
[  276.460708]  ? find_held_lock+0x36/0x1c0
[  276.464783]  ? zap_class+0x640/0x640
[  276.468506]  ? pvclock_read_flags+0x160/0x160
[  276.473034]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.478582]  ? check_preemption_disabled+0x48/0x280
[  276.483620]  ? __lock_is_held+0xb5/0x140
[  276.487693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.493238]  ? check_preemption_disabled+0x48/0x280
[  276.498276]  run_timer_softirq+0x52/0xb0
[  276.502343]  ? rcu_read_lock_sched_held+0x14f/0x180
[  276.507370]  __do_softirq+0x308/0xb7e
[  276.511194]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  276.515698]  ? lock_downgrade+0x900/0x900
[  276.519861]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  276.524980]  ? pvclock_read_flags+0x160/0x160
[  276.529487]  ? lapic_next_event+0x5a/0x90
[  276.533648]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.539197]  ? kvm_clock_read+0x18/0x30
[  276.543176]  ? kvm_sched_clock_read+0x9/0x20
[  276.547598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.553145]  ? check_preemption_disabled+0x48/0x280
[  276.558182]  irq_exit+0x17f/0x1c0
[  276.561645]  smp_apic_timer_interrupt+0x1cb/0x760
[  276.566519]  ? smp_call_function_single_interrupt+0x159/0x650
[  276.572438]  ? smp_call_function_single_interrupt+0x650/0x650
[  276.578339]  ? interrupt_entry+0xb5/0xc0
[  276.582417]  ? trace_hardirqs_off_caller+0xbb/0x310
[  276.587440]  ? trace_hardirqs_off_caller+0xbb/0x310
[  276.592470]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.597325]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.602346]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.607395]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.612254]  apic_timer_interrupt+0xf/0x20
[  276.616489]  </IRQ>
[  276.618739] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  276.623680] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  276.642601] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  276.650331] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  276.657612] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  276.664891] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  276.672181] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  276.679460] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  276.686790]  skb_clone+0x1bb/0x500
[  276.690343]  ? skb_split+0x11e0/0x11e0
[  276.694238]  ? check_preemption_disabled+0x48/0x280
[  276.699281]  ? __this_cpu_preempt_check+0x1c/0x20
[  276.704140]  ? __bpf_redirect+0x54b/0xb20
[  276.708304]  bpf_clone_redirect+0xb9/0x490
[  276.712555]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  276.717586]  ? __sched_text_start+0x8/0x8
[  276.721745]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  276.726528]  ? find_held_lock+0x36/0x1c0
[  276.730602]  ? lock_acquire+0x1ed/0x520
[  276.734584]  ? bpf_test_run+0x3cb/0x780
[  276.738598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.744177]  ? check_preemption_disabled+0x48/0x280
[  276.749221]  ? kasan_check_read+0x11/0x20
[  276.753670]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.758956]  ? rcu_softirq_qs+0x20/0x20
[  276.762978]  ? preempt_schedule+0x4d/0x60
[  276.767139]  ? ___preempt_schedule+0x16/0x18
[  276.771568]  ? bpf_test_run+0x25d/0x780
[  276.775560]  ? netlink_diag_dump+0x2a0/0x2a0
[  276.779982]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  276.784751]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  276.789529]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  276.794380]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  276.799932]  ? fput+0x130/0x1a0
[  276.803221]  ? __bpf_prog_get+0x9b/0x290
[  276.807289]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  276.812145]  ? bpf_prog_test_run+0x130/0x1a0
[  276.816561]  ? __x64_sys_bpf+0x3d8/0x520
[  276.820638]  ? bpf_prog_get+0x20/0x20
[  276.824468]  ? do_syscall_64+0x1b9/0x820
[  276.828538]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  276.833926]  ? syscall_return_slowpath+0x5e0/0x5e0
[  276.838872]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.843741]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.848776]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  276.853804]  ? prepare_exit_to_usermode+0x291/0x3b0
[  276.858839]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.863701]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  276.869101] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  276.869193] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  276.876044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  276.876049] Call Trace:
[  276.876057]  <IRQ>
[  276.876081]  dump_stack+0x244/0x39d
[  276.876097]  ? dump_stack_print_info.cold.1+0x20/0x20
[  276.876123]  warn_alloc.cold.116+0xb7/0x1bd
[  276.876141]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  276.882744] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  276.891987]  ? lock_downgrade+0x900/0x900
[  276.894551] syz-executor4 cpuset=syz4 mems_allowed=0
[  276.896704]  ? trace_hardirqs_off+0xb8/0x310
[  276.938743]  ? trace_hardirqs_off+0xb8/0x310
[  276.943168]  __alloc_pages_slowpath+0x26e8/0x2e10
[  276.948051]  ? warn_alloc+0x120/0x120
[  276.951861]  ? print_usage_bug+0xc0/0xc0
[  276.955934]  ? warn_alloc+0x120/0x120
[  276.959742]  ? warn_alloc+0x120/0x120
[  276.963549]  ? print_usage_bug+0xc0/0xc0
[  276.967619]  ? kvm_clock_read+0x18/0x30
[  276.971598]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  276.976622]  ? print_usage_bug+0xc0/0xc0
[  276.980696]  ? __lock_acquire+0x62f/0x4c20
[  276.984956]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.990501]  ? should_fail+0x22d/0xd01
[  276.994392]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.999678]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.004786]  ? __lock_acquire+0x62f/0x4c20
[  277.009034]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.014138]  ? __lock_acquire+0x62f/0x4c20
[  277.018376]  ? should_fail+0x22d/0xd01
[  277.022266]  ? rcu_irq_exit+0x1a2/0x390
[  277.026255]  ? mark_held_locks+0x130/0x130
[  277.030497]  ? mark_held_locks+0x130/0x130
[  277.034744]  ? mark_held_locks+0xc7/0x130
[  277.038898]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  277.043954]  ? zap_class+0x640/0x640
[  277.047675]  ? print_usage_bug+0xc0/0xc0
[  277.051750]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.057298]  ? check_preemption_disabled+0x48/0x280
[  277.062333]  ? __lock_is_held+0xb5/0x140
[  277.066408]  __alloc_pages_nodemask+0xa80/0xde0
[  277.071089]  ? zap_class+0x640/0x640
[  277.074811]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  277.079843]  ? find_held_lock+0x36/0x1c0
[  277.083931]  ? ____cache_alloc_node+0x1c7/0x1e0
[  277.088608]  ? lock_downgrade+0x900/0x900
[  277.092771]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.098319]  cache_grow_begin+0xa5/0x8c0
[  277.102386]  ? do_raw_spin_unlock+0xa7/0x330
[  277.106807]  fallback_alloc+0x204/0x2e0
[  277.110791]  ____cache_alloc_node+0x1c7/0x1e0
[  277.115294]  kmem_cache_alloc_node+0xe3/0x730
[  277.119797]  ? ipv6_get_ifaddr+0x42e/0x620
[  277.124051]  __alloc_skb+0x119/0x770
[  277.127782]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.133077]  ? netdev_alloc_frag+0x1f0/0x1f0
[  277.137488]  ? lock_downgrade+0x900/0x900
[  277.141651]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.147197]  ? refcount_sub_and_test_checked+0x203/0x310
[  277.152670]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  277.158130]  ? addrconf_rs_timer+0x690/0x690
[  277.162558]  ndisc_alloc_skb+0x144/0x340
[  277.166630]  ndisc_send_rs+0x331/0x6e0
[  277.170537]  addrconf_rs_timer+0x314/0x690
[  277.174784]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.179043]  call_timer_fn+0x272/0x920
[  277.182942]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.187179]  ? process_timeout+0x40/0x40
[  277.191256]  ? mark_held_locks+0xc7/0x130
[  277.195422]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.199923]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.204425]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.208670]  ? lockdep_hardirqs_on+0x296/0x5b0
[  277.213262]  ? trace_hardirqs_on+0xbd/0x310
[  277.217587]  ? kasan_check_read+0x11/0x20
[  277.221741]  ? __run_timers+0x7da/0xc70
[  277.225723]  ? trace_hardirqs_off_caller+0x310/0x310
[  277.230837]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.235086]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.239333]  __run_timers+0x7e5/0xc70
[  277.243160]  ? timer_fixup_init+0x70/0x70
[  277.247317]  ? kasan_check_read+0x11/0x20
[  277.251465]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.256743]  ? rcu_softirq_qs+0x20/0x20
[  277.260726]  ? mark_held_locks+0xc7/0x130
[  277.264884]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  277.269655]  ? retint_kernel+0x2d/0x2d
[  277.273546]  ? trace_hardirqs_on_caller+0xc0/0x310
[  277.278485]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  277.283246]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  277.288705]  ? zap_class+0x640/0x640
[  277.292436]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.297985]  ? check_preemption_disabled+0x48/0x280
[  277.303024]  ? __lock_is_held+0xb5/0x140
[  277.307108]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.313066]  ? check_preemption_disabled+0x48/0x280
[  277.318096]  run_timer_softirq+0x52/0xb0
[  277.322163]  ? rcu_read_lock_sched_held+0x14f/0x180
[  277.327198]  __do_softirq+0x308/0xb7e
[  277.331008]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  277.335515]  ? lock_downgrade+0x900/0x900
[  277.339677]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  277.344794]  ? pvclock_read_flags+0x160/0x160
[  277.349326]  ? lapic_next_event+0x5a/0x90
[  277.353480]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.359032]  ? kvm_clock_read+0x18/0x30
[  277.363032]  ? kvm_sched_clock_read+0x9/0x20
[  277.367447]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.372994]  ? check_preemption_disabled+0x48/0x280
[  277.378035]  irq_exit+0x17f/0x1c0
[  277.381498]  smp_apic_timer_interrupt+0x1cb/0x760
[  277.386352]  ? smp_call_function_single_interrupt+0x650/0x650
[  277.392244]  ? interrupt_entry+0xb5/0xc0
[  277.396314]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.401332]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.406354]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.411213]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.416238]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.421269]  ? task_prio+0x50/0x50
[  277.424817]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.430363]  ? check_preemption_disabled+0x48/0x280
[  277.435394]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.440250]  apic_timer_interrupt+0xf/0x20
[  277.444481]  </IRQ>
[  277.446732] RIP: 0010:dump_stack+0x358/0x39d
[  277.451158] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  277.470079] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  277.477824] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  277.485101] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  277.492379] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  277.499656] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  277.506935] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  277.514241]  ? dump_stack+0x34f/0x39d
[  277.518065]  ? dump_stack_print_info.cold.1+0x20/0x20
[  277.523268]  ? mark_held_locks+0x130/0x130
[  277.527508]  ? mark_held_locks+0x130/0x130
[  277.531752]  dump_header+0x27b/0xf72
[  277.535502]  ? pagefault_out_of_memory+0x197/0x197
[  277.540502]  ? __lock_acquire+0x62f/0x4c20
[  277.544767]  ? percpu_ref_get_many+0x240/0x240
[  277.549357]  ? print_usage_bug+0xc0/0xc0
[  277.553438]  ? zap_class+0x640/0x640
[  277.557161]  ? print_usage_bug+0xc0/0xc0
[  277.561222]  ? print_usage_bug+0xc0/0xc0
[  277.565296]  ? zap_class+0x640/0x640
[  277.569052]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.574629]  ? find_held_lock+0x36/0x1c0
[  277.578709]  ? mark_held_locks+0xc7/0x130
[  277.582864]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  277.587975]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  277.593085]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  277.597679]  ? trace_hardirqs_on+0xbd/0x310
[  277.602009]  ? kasan_check_read+0x11/0x20
[  277.606165]  ? ___ratelimit+0x3b4/0x672
[  277.610144]  ? trace_hardirqs_off_caller+0x310/0x310
[  277.615253]  ? trace_hardirqs_on+0x310/0x310
[  277.619671]  ? lock_downgrade+0x900/0x900
[  277.623829]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  277.628966]  ? ___ratelimit+0x3b9/0x672
[  277.632951]  ? idr_get_free+0xf70/0xf70
[  277.636937]  ? find_held_lock+0x36/0x1c0
[  277.641020]  oom_kill_process.cold.27+0x10/0x903
[  277.645790]  ? zap_class+0x640/0x640
[  277.649513]  ? check_preemption_disabled+0x48/0x280
[  277.654542]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  277.659478]  ? kasan_check_read+0x11/0x20
[  277.663633]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.668934]  ? oom_evaluate_task+0x540/0x540
[  277.673359]  ? find_held_lock+0x36/0x1c0
[  277.677431]  ? out_of_memory+0x974/0x1430
[  277.681586]  ? lock_downgrade+0x900/0x900
[  277.685739]  ? check_preemption_disabled+0x48/0x280
[  277.690765]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  277.695702]  ? kasan_check_read+0x11/0x20
[  277.699856]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.705140]  ? rcu_softirq_qs+0x20/0x20
[  277.709124]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.714669]  ? oom_evaluate_task+0x302/0x540
[  277.719089]  out_of_memory+0xa84/0x1430
[  277.723078]  ? oom_killer_disable+0x3a0/0x3a0
[  277.727578]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  277.732518]  ? __ww_mutex_check_waiters+0x160/0x160
[  277.737554]  __alloc_pages_slowpath+0x2354/0x2e10
[  277.742428]  ? warn_alloc+0x120/0x120
[  277.746233]  ? mark_held_locks+0x130/0x130
[  277.750483]  ? find_get_entry+0xaae/0x1120
[  277.754735]  ? filemap_map_pages+0x1a20/0x1a20
[  277.759333]  ? zap_class+0x640/0x640
[  277.763059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.768612]  ? check_preemption_disabled+0x48/0x280
[  277.773634]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.779179]  ? should_fail+0x22d/0xd01
[  277.783076]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.788188]  ? zap_class+0x640/0x640
[  277.791944]  ? __lock_is_held+0xb5/0x140
[  277.796027]  ? mark_held_locks+0x130/0x130
[  277.800272]  ? lock_release+0xa00/0xa00
[  277.804254]  ? perf_trace_sched_process_exec+0x860/0x860
[  277.809714]  ? xa_load+0x2ba/0x460
[  277.813261]  ? lock_downgrade+0x900/0x900
[  277.817420]  ? __might_sleep+0x95/0x190
[  277.821415]  __alloc_pages_nodemask+0xa80/0xde0
[  277.826098]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  277.831121]  ? __page_cache_alloc+0x191/0x5c0
[  277.835628]  ? xa_load+0x2e1/0x460
[  277.839187]  ? xa_clear_mark+0x40/0x40
[  277.843086]  ? zap_class+0x640/0x640
[  277.846815]  ? zap_class+0x640/0x640
[  277.850531]  ? zap_class+0x640/0x640
[  277.854251]  ? __do_page_cache_readahead+0x663/0x810
[  277.859366]  ? find_held_lock+0x36/0x1c0
[  277.863438]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  277.869000]  alloc_pages_current+0x173/0x350
[  277.873434]  __page_cache_alloc+0x38c/0x5c0
[  277.877761]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  277.882948]  ? kasan_check_read+0x11/0x20
[  277.887103]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.892391]  ? generic_perform_write+0x6a0/0x6a0
[  277.897157]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.902709]  ? check_preemption_disabled+0x48/0x280
[  277.907743]  filemap_fault+0x1595/0x25f0
[  277.911823]  ? __lock_page_or_retry+0xa00/0xa00
[  277.916505]  ? mark_held_locks+0x130/0x130
[  277.920768]  ? filemap_map_pages+0xd6b/0x1a20
[  277.925269]  ? lock_downgrade+0x900/0x900
[  277.929428]  ? check_preemption_disabled+0x48/0x280
[  277.934456]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  277.939395]  ? kasan_check_read+0x11/0x20
[  277.943549]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.948831]  ? rcu_softirq_qs+0x20/0x20
[  277.952829]  ? filemap_map_pages+0xd92/0x1a20
[  277.957343]  ? find_get_entries_tag+0x1400/0x1400
[  277.962194]  ? find_held_lock+0x36/0x1c0
[  277.966283]  ? lock_acquire+0x1ed/0x520
[  277.970267]  ? ext4_filemap_fault+0x7a/0xad
[  277.974611]  ? lock_release+0xa00/0xa00
[  277.978592]  ? perf_trace_sched_process_exec+0x860/0x860
[  277.984058]  ? print_usage_bug+0xc0/0xc0
[  277.988138]  ? print_usage_bug+0xc0/0xc0
[  277.992222]  ? down_read+0x8d/0x120
[  277.995860]  ? ext4_filemap_fault+0x7a/0xad
[  278.000192]  ? __down_interruptible+0x700/0x700
[  278.004879]  ext4_filemap_fault+0x82/0xad
[  278.009046]  __do_fault+0x100/0x6b0
[  278.012677]  ? find_held_lock+0x36/0x1c0
[  278.016750]  ? pmd_devmap_trans_unstable+0x220/0x220
[  278.021865]  ? mark_held_locks+0x130/0x130
[  278.026109]  ? mark_held_locks+0x130/0x130
[  278.030360]  ? kasan_check_read+0x11/0x20
[  278.034545]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.040098]  __handle_mm_fault+0x3ea0/0x5be0
[  278.044514]  ? perf_trace_lock+0x7a0/0x7a0
[  278.048782]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  278.053638]  ? __switch_to_asm+0x34/0x70
[  278.057702]  ? __switch_to_asm+0x34/0x70
[  278.061783]  ? zap_class+0x640/0x640
[  278.065502]  ? zap_class+0x640/0x640
[  278.069229]  ? __x64_sys_futex+0x53e/0x6a0
[  278.073473]  ? find_held_lock+0x36/0x1c0
[  278.077550]  ? handle_mm_fault+0x42a/0xc70
[  278.081793]  ? lock_downgrade+0x900/0x900
[  278.085955]  ? check_preemption_disabled+0x48/0x280
[  278.090984]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.095930]  ? kasan_check_read+0x11/0x20
[  278.100093]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.105386]  ? rcu_softirq_qs+0x20/0x20
[  278.109367]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.114478]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.120031]  ? check_preemption_disabled+0x48/0x280
[  278.125065]  handle_mm_fault+0x54f/0xc70
[  278.129135]  ? __handle_mm_fault+0x5be0/0x5be0
[  278.133725]  ? find_vma+0x34/0x190
[  278.137309]  __do_page_fault+0x5e8/0xe60
[  278.141374]  ? trace_hardirqs_off+0xb8/0x310
[  278.145795]  do_page_fault+0xf2/0x7e0
[  278.149603]  ? vmalloc_sync_all+0x30/0x30
[  278.153758]  ? error_entry+0x70/0xd0
[  278.157487]  ? trace_hardirqs_off_caller+0xbb/0x310
[  278.162511]  ? trace_hardirqs_on_caller+0xc0/0x310
[  278.167449]  ? syscall_return_slowpath+0x5e0/0x5e0
[  278.172393]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.177251]  ? trace_hardirqs_on_caller+0x310/0x310
[  278.182275]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  278.187745]  ? prepare_exit_to_usermode+0x291/0x3b0
[  278.192778]  ? page_fault+0x8/0x30
[  278.196328]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.201197]  ? page_fault+0x8/0x30
[  278.204741]  page_fault+0x1e/0x30
[  278.208197] RIP: 0033:0x44b69a
[  278.211406] Code: Bad RIP value.
[  278.214770] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  278.220135] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  278.227411] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  278.234686] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  278.241965] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  278.249239] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  278.256545] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  278.256551] warn_alloc_show_mem: 1 callbacks suppressed
[  278.256560] Mem-Info:
[  278.263766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  278.269155] active_anon:47227 inactive_anon:190 isolated_anon:0
[  278.269155]  active_file:11 inactive_file:14 isolated_file:0
[  278.269155]  unevictable:0 dirty:0 writeback:0 unstable:0
[  278.269155]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  278.269155]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  278.269155]  free:13756 free_pcp:235 free_cma:0
[  278.271597] Call Trace:
[  278.281005] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  278.313877]  <IRQ>
[  278.316459] 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
[  278.343995]  dump_stack+0x244/0x39d
[  278.346123] lowmem_reserve[]: 0 2818 6321 6321
[  278.372258]  ? dump_stack_print_info.cold.1+0x20/0x20
[  278.375863] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  278.380457]  warn_alloc.cold.116+0xb7/0x1bd
[  278.385612] lowmem_reserve[]: 0 0 3503 3503
[  278.412982]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  278.417283] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  278.421613]  ? lock_downgrade+0x900/0x900
[  278.426432] lowmem_reserve[]: 0 0 0 0
[  278.455353]  ? trace_hardirqs_off+0xb8/0x310
[  278.459485] 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
[  278.463294]  ? trace_hardirqs_off+0xb8/0x310
[  278.467672] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  278.481215]  __alloc_pages_slowpath+0x26e8/0x2e10
[  278.485599] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  278.500898]  ? warn_alloc+0x120/0x120
[  278.505745] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  278.520850]  ? print_usage_bug+0xc0/0xc0
[  278.524633] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  278.533477]  ? warn_alloc+0x120/0x120
[  278.537521] 269 total pagecache pages
[  278.546106]  ? warn_alloc+0x120/0x120
[  278.549886] 0 pages in swap cache
[  278.553681]  ? print_usage_bug+0xc0/0xc0
[  278.557451] Swap cache stats: add 0, delete 0, find 0/0
[  278.557460] Free swap  = 0kB
[  278.560940]  ? kvm_clock_read+0x18/0x30
[  278.564973] Total swap = 0kB
[  278.570343]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  278.573338] 1965979 pages RAM
[  278.577329]  ? print_usage_bug+0xc0/0xc0
[  278.580318] 0 pages HighMem/MovableOnly
[  278.585342]  ? __lock_acquire+0x62f/0x4c20
[  278.588431] 342853 pages reserved
[  278.592521]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.596460] 0 pages cma reserved
[  278.600696]  ? should_fail+0x22d/0xd01
[  278.604193] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  278.609661]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.609683]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.613135] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  278.616927]  ? __lock_acquire+0x62f/0x4c20
[  278.623418] syz-fuzzer cpuset=/ mems_allowed=0
[  278.628713]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.657900]  ? __lock_acquire+0x62f/0x4c20
[  278.662160]  ? should_fail+0x22d/0xd01
[  278.666055]  ? rcu_irq_exit+0x1a2/0x390
[  278.670051]  ? mark_held_locks+0x130/0x130
[  278.674302]  ? mark_held_locks+0x130/0x130
[  278.678560]  ? mark_held_locks+0xc7/0x130
[  278.682714]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  278.687743]  ? zap_class+0x640/0x640
[  278.691463]  ? print_usage_bug+0xc0/0xc0
[  278.695541]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.701094]  ? check_preemption_disabled+0x48/0x280
[  278.706133]  ? __lock_is_held+0xb5/0x140
[  278.710216]  __alloc_pages_nodemask+0xa80/0xde0
[  278.714898]  ? zap_class+0x640/0x640
[  278.718640]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  278.723683]  ? find_held_lock+0x36/0x1c0
[  278.727764]  ? ____cache_alloc_node+0x1c7/0x1e0
[  278.732447]  ? lock_downgrade+0x900/0x900
[  278.736609]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.742165]  cache_grow_begin+0xa5/0x8c0
[  278.746236]  ? do_raw_spin_unlock+0xa7/0x330
[  278.750771]  fallback_alloc+0x204/0x2e0
[  278.754765]  ____cache_alloc_node+0x1c7/0x1e0
[  278.759327]  kmem_cache_alloc_node+0xe3/0x730
[  278.763833]  ? ipv6_get_ifaddr+0x42e/0x620
[  278.768089]  __alloc_skb+0x119/0x770
[  278.771810]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.777115]  ? netdev_alloc_frag+0x1f0/0x1f0
[  278.781540]  ? lock_downgrade+0x900/0x900
[  278.785703]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.791251]  ? refcount_sub_and_test_checked+0x203/0x310
[  278.796727]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  278.802193]  ? addrconf_rs_timer+0x690/0x690
[  278.806624]  ndisc_alloc_skb+0x144/0x340
[  278.810703]  ndisc_send_rs+0x331/0x6e0
[  278.814605]  addrconf_rs_timer+0x314/0x690
[  278.818855]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.823108]  call_timer_fn+0x272/0x920
[  278.827003]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.831251]  ? process_timeout+0x40/0x40
[  278.835324]  ? __run_timers+0x7da/0xc70
[  278.839303]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.843807]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.848310]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.852559]  ? lockdep_hardirqs_on+0x296/0x5b0
[  278.857159]  ? trace_hardirqs_on+0xbd/0x310
[  278.861495]  ? kasan_check_read+0x11/0x20
[  278.865673]  ? __run_timers+0x7da/0xc70
[  278.869670]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.874802]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.879076]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.883330]  __run_timers+0x7e5/0xc70
[  278.887156]  ? timer_fixup_init+0x70/0x70
[  278.891317]  ? lock_acquire+0x1ed/0x520
[  278.895302]  ? zap_class+0x640/0x640
[  278.899026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.904581]  ? kasan_check_read+0x11/0x20
[  278.908741]  ? do_raw_spin_lock+0x14f/0x350
[  278.913078]  ? find_held_lock+0x36/0x1c0
[  278.917154]  ? zap_class+0x640/0x640
[  278.920882]  ? pvclock_read_flags+0x160/0x160
[  278.925395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.930951]  ? check_preemption_disabled+0x48/0x280
[  278.935991]  ? __lock_is_held+0xb5/0x140
[  278.940062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.945620]  ? check_preemption_disabled+0x48/0x280
[  278.950660]  run_timer_softirq+0x52/0xb0
[  278.954730]  ? rcu_read_lock_sched_held+0x14f/0x180
[  278.959756]  __do_softirq+0x308/0xb7e
[  278.963586]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  278.968093]  ? lock_downgrade+0x900/0x900
[  278.972277]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  278.977397]  ? pvclock_read_flags+0x160/0x160
[  278.981908]  ? lapic_next_event+0x5a/0x90
[  278.986077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.991632]  ? kvm_clock_read+0x18/0x30
[  278.995625]  ? kvm_sched_clock_read+0x9/0x20
[  279.000046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.005596]  ? check_preemption_disabled+0x48/0x280
[  279.010632]  irq_exit+0x17f/0x1c0
[  279.014105]  smp_apic_timer_interrupt+0x1cb/0x760
[  279.018960]  ? smp_call_function_single_interrupt+0x159/0x650
[  279.024873]  ? smp_call_function_single_interrupt+0x650/0x650
[  279.030775]  ? interrupt_entry+0xb5/0xc0
[  279.034859]  ? trace_hardirqs_off_caller+0xbb/0x310
[  279.039888]  ? trace_hardirqs_off_caller+0xbb/0x310
[  279.044929]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.049790]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.054828]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.059871]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.064738]  apic_timer_interrupt+0xf/0x20
[  279.068987]  </IRQ>
[  279.071257] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  279.076206] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  279.095131] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  279.102861] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  279.110150] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  279.117439] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  279.124728] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  279.132022] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  279.139363]  skb_clone+0x1bb/0x500
[  279.142937]  ? skb_split+0x11e0/0x11e0
[  279.146839]  ? check_preemption_disabled+0x48/0x280
[  279.152253]  ? __this_cpu_preempt_check+0x1c/0x20
[  279.157499]  ? __bpf_redirect+0x54b/0xb20
[  279.162181]  bpf_clone_redirect+0xb9/0x490
[  279.167076]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  279.172560]  ? __sched_text_start+0x8/0x8
[  279.177370]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  279.182831]  ? find_held_lock+0x36/0x1c0
[  279.187363]  ? lock_acquire+0x1ed/0x520
[  279.191800]  ? bpf_test_run+0x3cb/0x780
[  279.196020]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.202160]  ? check_preemption_disabled+0x48/0x280
[  279.207477]  ? kasan_check_read+0x11/0x20
[  279.211641]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.216934]  ? rcu_softirq_qs+0x20/0x20
[  279.220956]  ? preempt_schedule+0x4d/0x60
[  279.225118]  ? ___preempt_schedule+0x16/0x18
[  279.229552]  ? bpf_test_run+0x25d/0x780
[  279.233552]  ? netlink_diag_dump+0x2a0/0x2a0
[  279.237985]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  279.242755]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  279.247536]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  279.252427]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  279.257987]  ? fput+0x130/0x1a0
[  279.261279]  ? __bpf_prog_get+0x9b/0x290
[  279.265365]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  279.270214]  ? bpf_prog_test_run+0x130/0x1a0
[  279.274636]  ? __x64_sys_bpf+0x3d8/0x520
[  279.278705]  ? bpf_prog_get+0x20/0x20
[  279.282541]  ? do_syscall_64+0x1b9/0x820
[  279.286610]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  279.291989]  ? syscall_return_slowpath+0x5e0/0x5e0
[  279.296941]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.301804]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.306835]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  279.311868]  ? prepare_exit_to_usermode+0x291/0x3b0
[  279.316903]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.321777]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  279.327188] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  279.327307] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  279.334138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  279.334143] Call Trace:
[  279.334151]  <IRQ>
[  279.334173]  dump_stack+0x244/0x39d
[  279.334189]  ? dump_stack_print_info.cold.1+0x20/0x20
[  279.334215]  warn_alloc.cold.116+0xb7/0x1bd
[  279.334232]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  279.340799] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  279.350100]  ? lock_downgrade+0x900/0x900
[  279.352658] syz-executor4 cpuset=syz4 mems_allowed=0
[  279.354807]  ? trace_hardirqs_off+0xb8/0x310
[  279.396857]  ? trace_hardirqs_off+0xb8/0x310
[  279.401287]  __alloc_pages_slowpath+0x26e8/0x2e10
[  279.406166]  ? warn_alloc+0x120/0x120
[  279.409976]  ? print_usage_bug+0xc0/0xc0
[  279.414048]  ? warn_alloc+0x120/0x120
[  279.417856]  ? warn_alloc+0x120/0x120
[  279.421675]  ? print_usage_bug+0xc0/0xc0
[  279.425740]  ? kvm_clock_read+0x18/0x30
[  279.429719]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  279.434755]  ? print_usage_bug+0xc0/0xc0
[  279.438825]  ? __lock_acquire+0x62f/0x4c20
[  279.443071]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.448616]  ? should_fail+0x22d/0xd01
[  279.452511]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.457798]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.462921]  ? __lock_acquire+0x62f/0x4c20
[  279.467175]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.472284]  ? __lock_acquire+0x62f/0x4c20
[  279.476527]  ? should_fail+0x22d/0xd01
[  279.480416]  ? rcu_irq_exit+0x1a2/0x390
[  279.484412]  ? mark_held_locks+0x130/0x130
[  279.488656]  ? mark_held_locks+0x130/0x130
[  279.492899]  ? mark_held_locks+0xc7/0x130
[  279.497063]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  279.502101]  ? zap_class+0x640/0x640
[  279.505835]  ? print_usage_bug+0xc0/0xc0
[  279.509926]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.515500]  ? check_preemption_disabled+0x48/0x280
[  279.520564]  ? __lock_is_held+0xb5/0x140
[  279.524644]  __alloc_pages_nodemask+0xa80/0xde0
[  279.529345]  ? zap_class+0x640/0x640
[  279.533071]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  279.538113]  ? find_held_lock+0x36/0x1c0
[  279.542194]  ? ____cache_alloc_node+0x1c7/0x1e0
[  279.546873]  ? lock_downgrade+0x900/0x900
[  279.551042]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.556592]  cache_grow_begin+0xa5/0x8c0
[  279.560664]  ? do_raw_spin_unlock+0xa7/0x330
[  279.565105]  fallback_alloc+0x204/0x2e0
[  279.569098]  ____cache_alloc_node+0x1c7/0x1e0
[  279.573610]  kmem_cache_alloc_node+0xe3/0x730
[  279.578122]  ? ipv6_get_ifaddr+0x42e/0x620
[  279.582377]  __alloc_skb+0x119/0x770
[  279.586099]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.591390]  ? netdev_alloc_frag+0x1f0/0x1f0
[  279.595806]  ? lock_downgrade+0x900/0x900
[  279.599966]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.605517]  ? refcount_sub_and_test_checked+0x203/0x310
[  279.610985]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  279.616451]  ? addrconf_rs_timer+0x690/0x690
[  279.620876]  ndisc_alloc_skb+0x144/0x340
[  279.624964]  ndisc_send_rs+0x331/0x6e0
[  279.628865]  addrconf_rs_timer+0x314/0x690
[  279.633120]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.637371]  call_timer_fn+0x272/0x920
[  279.641270]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.645512]  ? process_timeout+0x40/0x40
[  279.649596]  ? mark_held_locks+0xc7/0x130
[  279.653751]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.658250]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.662750]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.666991]  ? lockdep_hardirqs_on+0x296/0x5b0
[  279.671584]  ? trace_hardirqs_on+0xbd/0x310
[  279.675921]  ? kasan_check_read+0x11/0x20
[  279.680075]  ? __run_timers+0x7da/0xc70
[  279.684054]  ? trace_hardirqs_off_caller+0x310/0x310
[  279.689172]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.693420]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.697658]  __run_timers+0x7e5/0xc70
[  279.701472]  ? timer_fixup_init+0x70/0x70
[  279.705626]  ? kasan_check_read+0x11/0x20
[  279.709781]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.715067]  ? rcu_softirq_qs+0x20/0x20
[  279.719060]  ? mark_held_locks+0xc7/0x130
[  279.723227]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  279.727990]  ? retint_kernel+0x2d/0x2d
[  279.731890]  ? trace_hardirqs_on_caller+0xc0/0x310
[  279.736835]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  279.741599]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  279.747059]  ? zap_class+0x640/0x640
[  279.750835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.756399]  ? check_preemption_disabled+0x48/0x280
[  279.761446]  ? __lock_is_held+0xb5/0x140
[  279.765521]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.771074]  ? check_preemption_disabled+0x48/0x280
[  279.776106]  run_timer_softirq+0x52/0xb0
[  279.780175]  ? rcu_read_lock_sched_held+0x14f/0x180
[  279.785199]  __do_softirq+0x308/0xb7e
[  279.789017]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  279.793516]  ? lock_downgrade+0x900/0x900
[  279.797678]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  279.802795]  ? pvclock_read_flags+0x160/0x160
[  279.807298]  ? lapic_next_event+0x5a/0x90
[  279.811456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.817009]  ? kvm_clock_read+0x18/0x30
[  279.820996]  ? kvm_sched_clock_read+0x9/0x20
[  279.825418]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.830965]  ? check_preemption_disabled+0x48/0x280
[  279.836036]  irq_exit+0x17f/0x1c0
[  279.839499]  smp_apic_timer_interrupt+0x1cb/0x760
[  279.844350]  ? smp_call_function_single_interrupt+0x650/0x650
[  279.850243]  ? interrupt_entry+0xb5/0xc0
[  279.854310]  ? trace_hardirqs_off_caller+0xbb/0x310
[  279.859329]  ? trace_hardirqs_off_caller+0xbb/0x310
[  279.864356]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.869217]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.874241]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.879264]  ? task_prio+0x50/0x50
[  279.882970]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.888516]  ? check_preemption_disabled+0x48/0x280
[  279.893550]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.898408]  apic_timer_interrupt+0xf/0x20
[  279.902646]  </IRQ>
[  279.904892] RIP: 0010:dump_stack+0x358/0x39d
[  279.909314] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  279.928245] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  279.935982] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  279.943262] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  279.950544] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  279.957835] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  279.965112] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  279.972426]  ? dump_stack+0x34f/0x39d
[  279.976250]  ? dump_stack_print_info.cold.1+0x20/0x20
[  279.981454]  ? mark_held_locks+0x130/0x130
[  279.985693]  ? mark_held_locks+0x130/0x130
[  279.989959]  dump_header+0x27b/0xf72
[  279.993691]  ? pagefault_out_of_memory+0x197/0x197
[  279.998645]  ? __lock_acquire+0x62f/0x4c20
[  280.002889]  ? percpu_ref_get_many+0x240/0x240
[  280.007521]  ? print_usage_bug+0xc0/0xc0
[  280.011597]  ? zap_class+0x640/0x640
[  280.015315]  ? print_usage_bug+0xc0/0xc0
[  280.019378]  ? print_usage_bug+0xc0/0xc0
[  280.023446]  ? zap_class+0x640/0x640
[  280.027171]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.032729]  ? find_held_lock+0x36/0x1c0
[  280.036806]  ? mark_held_locks+0xc7/0x130
[  280.040964]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  280.046071]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  280.051199]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  280.055790]  ? trace_hardirqs_on+0xbd/0x310
[  280.060122]  ? kasan_check_read+0x11/0x20
[  280.064275]  ? ___ratelimit+0x3b4/0x672
[  280.068262]  ? trace_hardirqs_off_caller+0x310/0x310
[  280.073375]  ? trace_hardirqs_on+0x310/0x310
[  280.077806]  ? lock_downgrade+0x900/0x900
[  280.081966]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  280.087092]  ? ___ratelimit+0x3b9/0x672
[  280.091075]  ? idr_get_free+0xf70/0xf70
[  280.095061]  ? find_held_lock+0x36/0x1c0
[  280.099144]  oom_kill_process.cold.27+0x10/0x903
[  280.103918]  ? zap_class+0x640/0x640
[  280.107653]  ? check_preemption_disabled+0x48/0x280
[  280.112689]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.117627]  ? kasan_check_read+0x11/0x20
[  280.121785]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.127079]  ? oom_evaluate_task+0x540/0x540
[  280.131502]  ? find_held_lock+0x36/0x1c0
[  280.135577]  ? out_of_memory+0x974/0x1430
[  280.139740]  ? lock_downgrade+0x900/0x900
[  280.143898]  ? check_preemption_disabled+0x48/0x280
[  280.148936]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.153870]  ? kasan_check_read+0x11/0x20
[  280.158027]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.163312]  ? rcu_softirq_qs+0x20/0x20
[  280.167302]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.172853]  ? oom_evaluate_task+0x302/0x540
[  280.177273]  out_of_memory+0xa84/0x1430
[  280.181263]  ? oom_killer_disable+0x3a0/0x3a0
[  280.185768]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  280.190710]  ? __ww_mutex_check_waiters+0x160/0x160
[  280.195744]  __alloc_pages_slowpath+0x2354/0x2e10
[  280.200621]  ? warn_alloc+0x120/0x120
[  280.204428]  ? mark_held_locks+0x130/0x130
[  280.208676]  ? find_get_entry+0xaae/0x1120
[  280.212934]  ? filemap_map_pages+0x1a20/0x1a20
[  280.217541]  ? zap_class+0x640/0x640
[  280.221268]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.226817]  ? check_preemption_disabled+0x48/0x280
[  280.231843]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.237397]  ? should_fail+0x22d/0xd01
[  280.241307]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  280.246432]  ? zap_class+0x640/0x640
[  280.250193]  ? __lock_is_held+0xb5/0x140
[  280.254293]  ? mark_held_locks+0x130/0x130
[  280.258538]  ? lock_release+0xa00/0xa00
[  280.262524]  ? perf_trace_sched_process_exec+0x860/0x860
[  280.267990]  ? xa_load+0x2ba/0x460
[  280.271543]  ? lock_downgrade+0x900/0x900
[  280.275699]  ? __might_sleep+0x95/0x190
[  280.279681]  __alloc_pages_nodemask+0xa80/0xde0
[  280.284364]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  280.289387]  ? __page_cache_alloc+0x191/0x5c0
[  280.293901]  ? xa_load+0x2e1/0x460
[  280.297456]  ? xa_clear_mark+0x40/0x40
[  280.301353]  ? zap_class+0x640/0x640
[  280.305077]  ? zap_class+0x640/0x640
[  280.308792]  ? zap_class+0x640/0x640
[  280.312516]  ? __do_page_cache_readahead+0x663/0x810
[  280.317643]  ? find_held_lock+0x36/0x1c0
[  280.321717]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  280.327275]  alloc_pages_current+0x173/0x350
[  280.331702]  __page_cache_alloc+0x38c/0x5c0
[  280.336032]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.340971]  ? kasan_check_read+0x11/0x20
[  280.345130]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.350421]  ? generic_perform_write+0x6a0/0x6a0
[  280.355186]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.360731]  ? check_preemption_disabled+0x48/0x280
[  280.365768]  filemap_fault+0x1595/0x25f0
[  280.369849]  ? __lock_page_or_retry+0xa00/0xa00
[  280.374526]  ? mark_held_locks+0x130/0x130
[  280.378783]  ? filemap_map_pages+0xd6b/0x1a20
[  280.383294]  ? lock_downgrade+0x900/0x900
[  280.387460]  ? check_preemption_disabled+0x48/0x280
[  280.392483]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.397421]  ? kasan_check_read+0x11/0x20
[  280.401576]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.406857]  ? rcu_softirq_qs+0x20/0x20
[  280.410848]  ? filemap_map_pages+0xd92/0x1a20
[  280.415360]  ? find_get_entries_tag+0x1400/0x1400
[  280.420213]  ? find_held_lock+0x36/0x1c0
[  280.424297]  ? lock_acquire+0x1ed/0x520
[  280.428278]  ? ext4_filemap_fault+0x7a/0xad
[  280.432609]  ? lock_release+0xa00/0xa00
[  280.436591]  ? perf_trace_sched_process_exec+0x860/0x860
[  280.442056]  ? print_usage_bug+0xc0/0xc0
[  280.446127]  ? print_usage_bug+0xc0/0xc0
[  280.450209]  ? down_read+0x8d/0x120
[  280.453838]  ? ext4_filemap_fault+0x7a/0xad
[  280.458168]  ? __down_interruptible+0x700/0x700
[  280.462858]  ext4_filemap_fault+0x82/0xad
[  280.467026]  __do_fault+0x100/0x6b0
[  280.470668]  ? find_held_lock+0x36/0x1c0
[  280.474746]  ? pmd_devmap_trans_unstable+0x220/0x220
[  280.479861]  ? mark_held_locks+0x130/0x130
[  280.484103]  ? mark_held_locks+0x130/0x130
[  280.488352]  ? kasan_check_read+0x11/0x20
[  280.492505]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.498060]  __handle_mm_fault+0x3ea0/0x5be0
[  280.502479]  ? perf_trace_lock+0x7a0/0x7a0
[  280.506736]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  280.511590]  ? __switch_to_asm+0x34/0x70
[  280.515654]  ? __switch_to_asm+0x34/0x70
[  280.519737]  ? zap_class+0x640/0x640
[  280.523462]  ? zap_class+0x640/0x640
[  280.527185]  ? __x64_sys_futex+0x53e/0x6a0
[  280.531439]  ? find_held_lock+0x36/0x1c0
[  280.535524]  ? handle_mm_fault+0x42a/0xc70
[  280.539766]  ? lock_downgrade+0x900/0x900
[  280.543938]  ? check_preemption_disabled+0x48/0x280
[  280.548978]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  280.553951]  ? kasan_check_read+0x11/0x20
[  280.558107]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.563403]  ? rcu_softirq_qs+0x20/0x20
[  280.567382]  ? trace_hardirqs_off_caller+0x310/0x310
[  280.572501]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.578050]  ? check_preemption_disabled+0x48/0x280
[  280.583087]  handle_mm_fault+0x54f/0xc70
[  280.587166]  ? __handle_mm_fault+0x5be0/0x5be0
[  280.591762]  ? find_vma+0x34/0x190
[  280.595315]  __do_page_fault+0x5e8/0xe60
[  280.599382]  ? trace_hardirqs_off+0xb8/0x310
[  280.603810]  do_page_fault+0xf2/0x7e0
[  280.607615]  ? vmalloc_sync_all+0x30/0x30
[  280.611775]  ? error_entry+0x70/0xd0
[  280.615500]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.620518]  ? trace_hardirqs_on_caller+0xc0/0x310
[  280.625457]  ? syscall_return_slowpath+0x5e0/0x5e0
[  280.630393]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.635250]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.640273]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  280.645738]  ? prepare_exit_to_usermode+0x291/0x3b0
[  280.650764]  ? page_fault+0x8/0x30
[  280.654316]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.659173]  ? page_fault+0x8/0x30
[  280.662733]  page_fault+0x1e/0x30
[  280.666212] RIP: 0033:0x44b69a
[  280.669434] Code: Bad RIP value.
[  280.672800] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  280.678177] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  280.685452] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  280.692728] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  280.700003] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  280.707289] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  280.714587] warn_alloc_show_mem: 1 callbacks suppressed
[  280.714600] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  280.714602] Mem-Info:
[  280.714635] active_anon:47227 inactive_anon:190 isolated_anon:0
[  280.714635]  active_file:11 inactive_file:14 isolated_file:0
[  280.714635]  unevictable:0 dirty:0 writeback:0 unstable:0
[  280.714635]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  280.714635]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  280.714635]  free:13756 free_pcp:235 free_cma:0
[  280.719994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  280.727199] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  280.729601] Call Trace:
[  280.762863] 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
[  280.772254]  <IRQ>
[  280.799776] lowmem_reserve[]: 0 2818 6321 6321
[  280.802393]  dump_stack+0x244/0x39d
[  280.828492] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  280.831577]  ? dump_stack_print_info.cold.1+0x20/0x20
[  280.836131] lowmem_reserve[]: 0 0 3503 3503
[  280.840171]  warn_alloc.cold.116+0xb7/0x1bd
[  280.867478] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  280.867521] lowmem_reserve[]: 0 0 0 0
[  280.867540] 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
[  280.867614] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  280.867690] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  280.873047]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  280.877351] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  280.881672]  ? lock_downgrade+0x900/0x900
[  280.910559] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  280.914370]  ? trace_hardirqs_off+0xb8/0x310
[  280.927869] 269 total pagecache pages
[  280.943151]  ? trace_hardirqs_off+0xb8/0x310
[  280.958225] 0 pages in swap cache
[  280.963090]  __alloc_pages_slowpath+0x26e8/0x2e10
[  280.971900] Swap cache stats: add 0, delete 0, find 0/0
[  280.971919] Free swap  = 0kB
[  280.976102]  ? warn_alloc+0x120/0x120
[  280.984634] Total swap = 0kB
[  280.989050]  ? print_usage_bug+0xc0/0xc0
[  280.992828] 1965979 pages RAM
[  280.997241]  ? warn_alloc+0x120/0x120
[  281.000665] 0 pages HighMem/MovableOnly
[  281.000674] 342853 pages reserved
[  281.005527]  ? warn_alloc+0x120/0x120
[  281.010861] 0 pages cma reserved
[  281.013879]  ? print_usage_bug+0xc0/0xc0
[  281.017755] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  281.020667]  ? print_usage_bug+0xc0/0xc0
[  281.024809] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  281.027822]  ? __lock_acquire+0x62f/0x4c20
[  281.031593] syz-fuzzer cpuset=/ mems_allowed=0
[  281.035569]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.085270]  ? should_fail+0x22d/0xd01
[  281.089168]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.094283]  ? __lock_acquire+0x62f/0x4c20
[  281.098535]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.103642]  ? __lock_acquire+0x62f/0x4c20
[  281.107879]  ? should_fail+0x22d/0xd01
[  281.111783]  ? find_held_lock+0x36/0x1c0
[  281.115863]  ? mark_held_locks+0x130/0x130
[  281.120108]  ? mark_held_locks+0x130/0x130
[  281.124349]  ? zap_class+0x640/0x640
[  281.128072]  ? zap_class+0x640/0x640
[  281.131794]  ? print_usage_bug+0xc0/0xc0
[  281.135858]  ? do_raw_spin_unlock+0xa7/0x330
[  281.140271]  ? zap_class+0x640/0x640
[  281.143992]  ? print_usage_bug+0xc0/0xc0
[  281.148056]  ? wq_watchdog_touch+0x9c/0xfe
[  281.152300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.157852]  ? check_preemption_disabled+0x48/0x280
[  281.162889]  ? __lock_is_held+0xb5/0x140
[  281.166974]  __alloc_pages_nodemask+0xa80/0xde0
[  281.171657]  ? zap_class+0x640/0x640
[  281.175387]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  281.180432]  ? find_held_lock+0x36/0x1c0
[  281.184510]  ? ____cache_alloc_node+0x1c7/0x1e0
[  281.189195]  ? lock_downgrade+0x900/0x900
[  281.193358]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.198927]  cache_grow_begin+0xa5/0x8c0
[  281.202997]  ? do_raw_spin_unlock+0xa7/0x330
[  281.207424]  fallback_alloc+0x204/0x2e0
[  281.211414]  ____cache_alloc_node+0x1c7/0x1e0
[  281.215932]  kmem_cache_alloc_node+0xe3/0x730
[  281.220452]  ? ipv6_get_ifaddr+0x42e/0x620
[  281.224718]  __alloc_skb+0x119/0x770
[  281.228440]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.233792]  ? netdev_alloc_frag+0x1f0/0x1f0
[  281.238210]  ? lock_downgrade+0x900/0x900
[  281.242373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.247923]  ? refcount_sub_and_test_checked+0x203/0x310
[  281.253395]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  281.258855]  ? addrconf_rs_timer+0x690/0x690
[  281.263285]  ndisc_alloc_skb+0x144/0x340
[  281.267366]  ndisc_send_rs+0x331/0x6e0
[  281.271268]  addrconf_rs_timer+0x314/0x690
[  281.275518]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.279767]  call_timer_fn+0x272/0x920
[  281.283663]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.287902]  ? process_timeout+0x40/0x40
[  281.291985]  ? __run_timers+0x7da/0xc70
[  281.295977]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.300475]  ? _raw_spin_unlock_irq+0x27/0x80
[  281.304975]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.309219]  ? lockdep_hardirqs_on+0x296/0x5b0
[  281.313808]  ? trace_hardirqs_on+0xbd/0x310
[  281.318134]  ? kasan_check_read+0x11/0x20
[  281.322290]  ? __run_timers+0x7da/0xc70
[  281.326270]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.331387]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.335632]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  281.339880]  __run_timers+0x7e5/0xc70
[  281.343702]  ? timer_fixup_init+0x70/0x70
[  281.347866]  ? lock_acquire+0x1ed/0x520
[  281.351862]  ? zap_class+0x640/0x640
[  281.355603]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.361157]  ? kasan_check_read+0x11/0x20
[  281.365323]  ? do_raw_spin_lock+0x14f/0x350
[  281.369660]  ? find_held_lock+0x36/0x1c0
[  281.373732]  ? zap_class+0x640/0x640
[  281.377455]  ? pvclock_read_flags+0x160/0x160
[  281.381963]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.387524]  ? check_preemption_disabled+0x48/0x280
[  281.392565]  ? __lock_is_held+0xb5/0x140
[  281.396630]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.402175]  ? check_preemption_disabled+0x48/0x280
[  281.407206]  run_timer_softirq+0x52/0xb0
[  281.411276]  ? rcu_read_lock_sched_held+0x14f/0x180
[  281.416295]  __do_softirq+0x308/0xb7e
[  281.420106]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  281.424608]  ? lock_downgrade+0x900/0x900
[  281.428764]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  281.433880]  ? pvclock_read_flags+0x160/0x160
[  281.438394]  ? lapic_next_event+0x5a/0x90
[  281.442552]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.448102]  ? kvm_clock_read+0x18/0x30
[  281.452084]  ? kvm_sched_clock_read+0x9/0x20
[  281.456505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.462062]  ? check_preemption_disabled+0x48/0x280
[  281.467096]  irq_exit+0x17f/0x1c0
[  281.470560]  smp_apic_timer_interrupt+0x1cb/0x760
[  281.475409]  ? smp_call_function_single_interrupt+0x159/0x650
[  281.481306]  ? smp_call_function_single_interrupt+0x650/0x650
[  281.487201]  ? interrupt_entry+0xb5/0xc0
[  281.491271]  ? trace_hardirqs_off_caller+0xbb/0x310
[  281.496289]  ? trace_hardirqs_off_caller+0xbb/0x310
[  281.501312]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.506177]  ? trace_hardirqs_on_caller+0x310/0x310
[  281.511193]  ? trace_hardirqs_on_caller+0x310/0x310
[  281.516226]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.521087]  apic_timer_interrupt+0xf/0x20
[  281.525333]  </IRQ>
[  281.527577] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  281.532511] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  281.551432] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  281.559156] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  281.566432] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  281.573707] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  281.580979] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  281.588252] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  281.595580]  skb_clone+0x1bb/0x500
[  281.599128]  ? skb_split+0x11e0/0x11e0
[  281.603022]  ? check_preemption_disabled+0x48/0x280
[  281.608051]  ? __this_cpu_preempt_check+0x1c/0x20
[  281.612896]  ? __bpf_redirect+0x54b/0xb20
[  281.617070]  bpf_clone_redirect+0xb9/0x490
[  281.621321]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  281.626349]  ? __sched_text_start+0x8/0x8
[  281.630503]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  281.635285]  ? find_held_lock+0x36/0x1c0
[  281.639362]  ? lock_acquire+0x1ed/0x520
[  281.643341]  ? bpf_test_run+0x3cb/0x780
[  281.647319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.652864]  ? check_preemption_disabled+0x48/0x280
[  281.657894]  ? kasan_check_read+0x11/0x20
[  281.662053]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.667357]  ? rcu_softirq_qs+0x20/0x20
[  281.671338]  ? preempt_schedule+0x4d/0x60
[  281.675529]  ? ___preempt_schedule+0x16/0x18
[  281.679959]  ? bpf_test_run+0x25d/0x780
[  281.683955]  ? netlink_diag_dump+0x2a0/0x2a0
[  281.688374]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  281.693145]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  281.697923]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  281.702792]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  281.708364]  ? fput+0x130/0x1a0
[  281.711654]  ? __bpf_prog_get+0x9b/0x290
[  281.715727]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  281.720578]  ? bpf_prog_test_run+0x130/0x1a0
[  281.725000]  ? __x64_sys_bpf+0x3d8/0x520
[  281.729070]  ? bpf_prog_get+0x20/0x20
[  281.732901]  ? do_syscall_64+0x1b9/0x820
[  281.736974]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  281.742344]  ? syscall_return_slowpath+0x5e0/0x5e0
[  281.747277]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.752130]  ? trace_hardirqs_on_caller+0x310/0x310
[  281.757158]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  281.762184]  ? prepare_exit_to_usermode+0x291/0x3b0
[  281.767214]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.772072]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  281.777459] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  281.777555] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  281.784393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  281.784398] Call Trace:
[  281.784406]  <IRQ>
[  281.784426]  dump_stack+0x244/0x39d
[  281.784443]  ? dump_stack_print_info.cold.1+0x20/0x20
[  281.784470]  warn_alloc.cold.116+0xb7/0x1bd
[  281.791019] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  281.800310]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  281.802872] syz-executor4 cpuset=syz4 mems_allowed=0
[  281.805027]  ? lock_downgrade+0x900/0x900
[  281.842665]  ? trace_hardirqs_off+0xb8/0x310
[  281.847086]  ? trace_hardirqs_off+0xb8/0x310
[  281.851510]  __alloc_pages_slowpath+0x26e8/0x2e10
[  281.856385]  ? warn_alloc+0x120/0x120
[  281.860216]  ? print_usage_bug+0xc0/0xc0
[  281.864287]  ? warn_alloc+0x120/0x120
[  281.868114]  ? warn_alloc+0x120/0x120
[  281.871928]  ? print_usage_bug+0xc0/0xc0
[  281.875995]  ? kvm_clock_read+0x18/0x30
[  281.880094]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  281.885206]  ? print_usage_bug+0xc0/0xc0
[  281.889283]  ? __lock_acquire+0x62f/0x4c20
[  281.893528]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.899078]  ? should_fail+0x22d/0xd01
[  281.902972]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.908268]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.913380]  ? __lock_acquire+0x62f/0x4c20
[  281.917629]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.922738]  ? __lock_acquire+0x62f/0x4c20
[  281.926989]  ? should_fail+0x22d/0xd01
[  281.930890]  ? rcu_irq_exit+0x1a2/0x390
[  281.934884]  ? mark_held_locks+0x130/0x130
[  281.939134]  ? mark_held_locks+0x130/0x130
[  281.943377]  ? mark_held_locks+0xc7/0x130
[  281.947540]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  281.952563]  ? zap_class+0x640/0x640
[  281.956278]  ? print_usage_bug+0xc0/0xc0
[  281.960348]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.965907]  ? check_preemption_disabled+0x48/0x280
[  281.970955]  ? __lock_is_held+0xb5/0x140
[  281.975032]  __alloc_pages_nodemask+0xa80/0xde0
[  281.979706]  ? zap_class+0x640/0x640
[  281.983426]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  281.988457]  ? find_held_lock+0x36/0x1c0
[  281.992533]  ? ____cache_alloc_node+0x1c7/0x1e0
[  281.997210]  ? lock_downgrade+0x900/0x900
[  282.001371]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.006926]  cache_grow_begin+0xa5/0x8c0
[  282.010993]  ? do_raw_spin_unlock+0xa7/0x330
[  282.015424]  fallback_alloc+0x204/0x2e0
[  282.019409]  ____cache_alloc_node+0x1c7/0x1e0
[  282.023928]  kmem_cache_alloc_node+0xe3/0x730
[  282.028442]  ? ipv6_get_ifaddr+0x42e/0x620
[  282.032702]  __alloc_skb+0x119/0x770
[  282.036417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.041713]  ? netdev_alloc_frag+0x1f0/0x1f0
[  282.046127]  ? lock_downgrade+0x900/0x900
[  282.050288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.055844]  ? refcount_sub_and_test_checked+0x203/0x310
[  282.061316]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  282.066779]  ? addrconf_rs_timer+0x690/0x690
[  282.071206]  ndisc_alloc_skb+0x144/0x340
[  282.075297]  ndisc_send_rs+0x331/0x6e0
[  282.079202]  addrconf_rs_timer+0x314/0x690
[  282.083445]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.087694]  call_timer_fn+0x272/0x920
[  282.091587]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.095826]  ? process_timeout+0x40/0x40
[  282.099899]  ? mark_held_locks+0xc7/0x130
[  282.104067]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.108566]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.113065]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.117308]  ? lockdep_hardirqs_on+0x296/0x5b0
[  282.121899]  ? trace_hardirqs_on+0xbd/0x310
[  282.126233]  ? kasan_check_read+0x11/0x20
[  282.130390]  ? __run_timers+0x7da/0xc70
[  282.134370]  ? trace_hardirqs_off_caller+0x310/0x310
[  282.139486]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.143728]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.147970]  __run_timers+0x7e5/0xc70
[  282.151785]  ? timer_fixup_init+0x70/0x70
[  282.155945]  ? kasan_check_read+0x11/0x20
[  282.160099]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.165383]  ? rcu_softirq_qs+0x20/0x20
[  282.169371]  ? mark_held_locks+0xc7/0x130
[  282.173533]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  282.178302]  ? retint_kernel+0x2d/0x2d
[  282.182197]  ? trace_hardirqs_on_caller+0xc0/0x310
[  282.187136]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  282.191899]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  282.197362]  ? zap_class+0x640/0x640
[  282.201087]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.206630]  ? check_preemption_disabled+0x48/0x280
[  282.211660]  ? __lock_is_held+0xb5/0x140
[  282.215732]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.221275]  ? check_preemption_disabled+0x48/0x280
[  282.226308]  run_timer_softirq+0x52/0xb0
[  282.230373]  ? rcu_read_lock_sched_held+0x14f/0x180
[  282.235394]  __do_softirq+0x308/0xb7e
[  282.239228]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  282.243749]  ? lock_downgrade+0x900/0x900
[  282.247920]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  282.253042]  ? pvclock_read_flags+0x160/0x160
[  282.257549]  ? lapic_next_event+0x5a/0x90
[  282.261709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.267263]  ? kvm_clock_read+0x18/0x30
[  282.271240]  ? kvm_sched_clock_read+0x9/0x20
[  282.275657]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.281201]  ? check_preemption_disabled+0x48/0x280
[  282.286234]  irq_exit+0x17f/0x1c0
[  282.289693]  smp_apic_timer_interrupt+0x1cb/0x760
[  282.294543]  ? smp_call_function_single_interrupt+0x650/0x650
[  282.300433]  ? interrupt_entry+0xb5/0xc0
[  282.304575]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.309596]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.314621]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.319473]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.324495]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.329518]  ? task_prio+0x50/0x50
[  282.333063]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.338609]  ? check_preemption_disabled+0x48/0x280
[  282.343638]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.348496]  apic_timer_interrupt+0xf/0x20
[  282.352725]  </IRQ>
[  282.354984] RIP: 0010:dump_stack+0x358/0x39d
[  282.359405] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  282.378321] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  282.386049] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  282.393324] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  282.400597] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  282.407873] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  282.415166] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  282.422885]  ? dump_stack+0x34f/0x39d
[  282.426715]  ? dump_stack_print_info.cold.1+0x20/0x20
[  282.431923]  ? mark_held_locks+0x130/0x130
[  282.436162]  ? mark_held_locks+0x130/0x130
[  282.440407]  dump_header+0x27b/0xf72
[  282.444138]  ? pagefault_out_of_memory+0x197/0x197
[  282.449082]  ? __lock_acquire+0x62f/0x4c20
[  282.453322]  ? percpu_ref_get_many+0x240/0x240
[  282.457923]  ? print_usage_bug+0xc0/0xc0
[  282.461995]  ? zap_class+0x640/0x640
[  282.465723]  ? print_usage_bug+0xc0/0xc0
[  282.469787]  ? print_usage_bug+0xc0/0xc0
[  282.473855]  ? zap_class+0x640/0x640
[  282.477576]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.483124]  ? find_held_lock+0x36/0x1c0
[  282.487195]  ? mark_held_locks+0xc7/0x130
[  282.491353]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  282.496457]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  282.501568]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  282.506155]  ? trace_hardirqs_on+0xbd/0x310
[  282.510484]  ? kasan_check_read+0x11/0x20
[  282.514645]  ? ___ratelimit+0x3b4/0x672
[  282.518621]  ? trace_hardirqs_off_caller+0x310/0x310
[  282.523729]  ? trace_hardirqs_on+0x310/0x310
[  282.528154]  ? lock_downgrade+0x900/0x900
[  282.532310]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  282.537426]  ? ___ratelimit+0x3b9/0x672
[  282.541405]  ? idr_get_free+0xf70/0xf70
[  282.545385]  ? find_held_lock+0x36/0x1c0
[  282.549464]  oom_kill_process.cold.27+0x10/0x903
[  282.554224]  ? zap_class+0x640/0x640
[  282.557949]  ? check_preemption_disabled+0x48/0x280
[  282.562973]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  282.567906]  ? kasan_check_read+0x11/0x20
[  282.572067]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.577354]  ? oom_evaluate_task+0x540/0x540
[  282.581772]  ? find_held_lock+0x36/0x1c0
[  282.585849]  ? out_of_memory+0x974/0x1430
[  282.590010]  ? lock_downgrade+0x900/0x900
[  282.594169]  ? check_preemption_disabled+0x48/0x280
[  282.599197]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  282.604133]  ? kasan_check_read+0x11/0x20
[  282.608284]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.613562]  ? rcu_softirq_qs+0x20/0x20
[  282.617544]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.623086]  ? oom_evaluate_task+0x302/0x540
[  282.627504]  out_of_memory+0xa84/0x1430
[  282.631491]  ? oom_killer_disable+0x3a0/0x3a0
[  282.635995]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  282.640948]  ? __ww_mutex_check_waiters+0x160/0x160
[  282.645984]  __alloc_pages_slowpath+0x2354/0x2e10
[  282.650865]  ? warn_alloc+0x120/0x120
[  282.654685]  ? mark_held_locks+0x130/0x130
[  282.658937]  ? find_get_entry+0xaae/0x1120
[  282.663183]  ? filemap_map_pages+0x1a20/0x1a20
[  282.667772]  ? zap_class+0x640/0x640
[  282.671493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.677042]  ? check_preemption_disabled+0x48/0x280
[  282.682067]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.687622]  ? should_fail+0x22d/0xd01
[  282.691513]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  282.696624]  ? zap_class+0x640/0x640
[  282.700363]  ? __lock_is_held+0xb5/0x140
[  282.704433]  ? mark_held_locks+0x130/0x130
[  282.708677]  ? lock_release+0xa00/0xa00
[  282.712656]  ? perf_trace_sched_process_exec+0x860/0x860
[  282.718118]  ? xa_load+0x2ba/0x460
[  282.721665]  ? lock_downgrade+0x900/0x900
[  282.725822]  ? __might_sleep+0x95/0x190
[  282.729808]  __alloc_pages_nodemask+0xa80/0xde0
[  282.734487]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  282.739509]  ? __page_cache_alloc+0x191/0x5c0
[  282.744008]  ? xa_load+0x2e1/0x460
[  282.747555]  ? xa_clear_mark+0x40/0x40
[  282.751809]  ? zap_class+0x640/0x640
[  282.755532]  ? zap_class+0x640/0x640
[  282.759250]  ? zap_class+0x640/0x640
[  282.762968]  ? __do_page_cache_readahead+0x663/0x810
[  282.768082]  ? find_held_lock+0x36/0x1c0
[  282.772156]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  282.777718]  alloc_pages_current+0x173/0x350
[  282.782143]  __page_cache_alloc+0x38c/0x5c0
[  282.786465]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  282.791403]  ? kasan_check_read+0x11/0x20
[  282.795558]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.800846]  ? generic_perform_write+0x6a0/0x6a0
[  282.805609]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.811153]  ? check_preemption_disabled+0x48/0x280
[  282.816183]  filemap_fault+0x1595/0x25f0
[  282.820273]  ? __lock_page_or_retry+0xa00/0xa00
[  282.824967]  ? mark_held_locks+0x130/0x130
[  282.829215]  ? filemap_map_pages+0xd6b/0x1a20
[  282.833713]  ? lock_downgrade+0x900/0x900
[  282.837867]  ? check_preemption_disabled+0x48/0x280
[  282.842891]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  282.847835]  ? kasan_check_read+0x11/0x20
[  282.851987]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.857271]  ? rcu_softirq_qs+0x20/0x20
[  282.861261]  ? filemap_map_pages+0xd92/0x1a20
[  282.865772]  ? find_get_entries_tag+0x1400/0x1400
[  282.870978]  ? find_held_lock+0x36/0x1c0
[  282.875070]  ? lock_acquire+0x1ed/0x520
[  282.879048]  ? ext4_filemap_fault+0x7a/0xad
[  282.883377]  ? lock_release+0xa00/0xa00
[  282.887352]  ? perf_trace_sched_process_exec+0x860/0x860
[  282.892804]  ? print_usage_bug+0xc0/0xc0
[  282.896887]  ? print_usage_bug+0xc0/0xc0
[  282.900975]  ? down_read+0x8d/0x120
[  282.904617]  ? ext4_filemap_fault+0x7a/0xad
[  282.908947]  ? __down_interruptible+0x700/0x700
[  282.913645]  ext4_filemap_fault+0x82/0xad
[  282.917799]  __do_fault+0x100/0x6b0
[  282.921434]  ? find_held_lock+0x36/0x1c0
[  282.925506]  ? pmd_devmap_trans_unstable+0x220/0x220
[  282.930615]  ? mark_held_locks+0x130/0x130
[  282.934870]  ? mark_held_locks+0x130/0x130
[  282.939123]  ? kasan_check_read+0x11/0x20
[  282.943294]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.948840]  __handle_mm_fault+0x3ea0/0x5be0
[  282.953255]  ? perf_trace_lock+0x7a0/0x7a0
[  282.957502]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  282.962360]  ? __switch_to_asm+0x34/0x70
[  282.966420]  ? __switch_to_asm+0x34/0x70
[  282.970500]  ? zap_class+0x640/0x640
[  282.974216]  ? zap_class+0x640/0x640
[  282.977943]  ? __x64_sys_futex+0x53e/0x6a0
[  282.982197]  ? find_held_lock+0x36/0x1c0
[  282.986276]  ? handle_mm_fault+0x42a/0xc70
[  282.990522]  ? lock_downgrade+0x900/0x900
[  282.994679]  ? check_preemption_disabled+0x48/0x280
[  282.999700]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.004642]  ? kasan_check_read+0x11/0x20
[  283.008791]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.014075]  ? rcu_softirq_qs+0x20/0x20
[  283.018229]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.023343]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.028884]  ? check_preemption_disabled+0x48/0x280
[  283.033949]  handle_mm_fault+0x54f/0xc70
[  283.038025]  ? __handle_mm_fault+0x5be0/0x5be0
[  283.042616]  ? find_vma+0x34/0x190
[  283.046168]  __do_page_fault+0x5e8/0xe60
[  283.050232]  ? trace_hardirqs_off+0xb8/0x310
[  283.054657]  do_page_fault+0xf2/0x7e0
[  283.058463]  ? vmalloc_sync_all+0x30/0x30
[  283.062618]  ? error_entry+0x70/0xd0
[  283.066335]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.071357]  ? trace_hardirqs_on_caller+0xc0/0x310
[  283.076291]  ? syscall_return_slowpath+0x5e0/0x5e0
[  283.081226]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.086074]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.091096]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  283.096562]  ? prepare_exit_to_usermode+0x291/0x3b0
[  283.101583]  ? page_fault+0x8/0x30
[  283.105571]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.110421]  ? page_fault+0x8/0x30
[  283.113967]  page_fault+0x1e/0x30
[  283.117422] RIP: 0033:0x44b69a
[  283.120637] Code: Bad RIP value.
[  283.123999] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  283.129371] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  283.136647] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  283.143926] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  283.151199] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  283.158471] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  283.165787] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  283.165793] warn_alloc_show_mem: 1 callbacks suppressed
[  283.165801] Mem-Info:
[  283.173011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  283.178390] active_anon:47227 inactive_anon:190 isolated_anon:0
[  283.178390]  active_file:11 inactive_file:14 isolated_file:0
[  283.178390]  unevictable:0 dirty:0 writeback:0 unstable:0
[  283.178390]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  283.178390]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  283.178390]  free:13756 free_pcp:235 free_cma:0
[  283.180766] Call Trace:
[  283.190166] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  283.223028]  <IRQ>
[  283.223058]  dump_stack+0x244/0x39d
[  283.225631] 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
[  283.253152]  ? dump_stack_print_info.cold.1+0x20/0x20
[  283.255307] lowmem_reserve[]: 0 2818 6321 6321
[  283.258969]  warn_alloc.cold.116+0xb7/0x1bd
[  283.285064] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  283.290274]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  283.294814] lowmem_reserve[]: 0 0 3503 3503
[  283.299145]  ? lock_downgrade+0x900/0x900
[  283.326458] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  283.331318]  ? trace_hardirqs_off+0xb8/0x310
[  283.335600] lowmem_reserve[]: 0 0 0 0
[  283.339768]  ? trace_hardirqs_off+0xb8/0x310
[  283.368650] 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
[  283.373081]  __alloc_pages_slowpath+0x26e8/0x2e10
[  283.376838] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  283.381286]  ? warn_alloc+0x120/0x120
[  283.394772] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  283.399630]  ? print_usage_bug+0xc0/0xc0
[  283.414889] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  283.418711]  ? warn_alloc+0x120/0x120
[  283.433782] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  283.437850]  ? warn_alloc+0x120/0x120
[  283.446677] 269 total pagecache pages
[  283.450479]  ? print_usage_bug+0xc0/0xc0
[  283.459040] 0 pages in swap cache
[  283.462841]  ? print_usage_bug+0xc0/0xc0
[  283.466614] Swap cache stats: add 0, delete 0, find 0/0
[  283.470668]  ? __lock_acquire+0x62f/0x4c20
[  283.474091] Free swap  = 0kB
[  283.478151]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.483489] Total swap = 0kB
[  283.487745]  ? should_fail+0x22d/0xd01
[  283.490746] 1965979 pages RAM
[  283.496282]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.499272] 0 pages HighMem/MovableOnly
[  283.503158]  ? __lock_acquire+0x62f/0x4c20
[  283.506237] 342853 pages reserved
[  283.511337]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.515283] 0 pages cma reserved
[  283.519534]  ? __lock_acquire+0x62f/0x4c20
[  283.523037] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  283.528050]  ? should_fail+0x22d/0xd01
[  283.528068]  ? find_held_lock+0x36/0x1c0
[  283.531487] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  283.535676]  ? mark_held_locks+0x130/0x130
[  283.542150] syz-fuzzer cpuset=/ mems_allowed=0
[  283.546049]  ? mark_held_locks+0x130/0x130
[  283.573326]  ? zap_class+0x640/0x640
[  283.577049]  ? zap_class+0x640/0x640
[  283.580767]  ? print_usage_bug+0xc0/0xc0
[  283.584827]  ? do_raw_spin_unlock+0xa7/0x330
[  283.589235]  ? zap_class+0x640/0x640
[  283.592955]  ? print_usage_bug+0xc0/0xc0
[  283.597016]  ? wq_watchdog_touch+0x9c/0xfe
[  283.601260]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.606801]  ? check_preemption_disabled+0x48/0x280
[  283.611830]  ? __lock_is_held+0xb5/0x140
[  283.615904]  __alloc_pages_nodemask+0xa80/0xde0
[  283.620597]  ? zap_class+0x640/0x640
[  283.624320]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  283.629348]  ? find_held_lock+0x36/0x1c0
[  283.633421]  ? ____cache_alloc_node+0x1c7/0x1e0
[  283.638092]  ? lock_downgrade+0x900/0x900
[  283.642254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.647800]  cache_grow_begin+0xa5/0x8c0
[  283.651865]  ? do_raw_spin_unlock+0xa7/0x330
[  283.656290]  fallback_alloc+0x204/0x2e0
[  283.660273]  ____cache_alloc_node+0x1c7/0x1e0
[  283.664774]  kmem_cache_alloc_node+0xe3/0x730
[  283.669298]  ? ipv6_get_ifaddr+0x42e/0x620
[  283.673550]  __alloc_skb+0x119/0x770
[  283.677266]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.682553]  ? netdev_alloc_frag+0x1f0/0x1f0
[  283.686968]  ? lock_downgrade+0x900/0x900
[  283.691125]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.696664]  ? refcount_sub_and_test_checked+0x203/0x310
[  283.702120]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  283.707573]  ? addrconf_rs_timer+0x690/0x690
[  283.711997]  ndisc_alloc_skb+0x144/0x340
[  283.716072]  ndisc_send_rs+0x331/0x6e0
[  283.719970]  addrconf_rs_timer+0x314/0x690
[  283.724213]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.728461]  call_timer_fn+0x272/0x920
[  283.732351]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.736587]  ? process_timeout+0x40/0x40
[  283.740658]  ? __run_timers+0x7da/0xc70
[  283.744655]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.749149]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.753651]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.757898]  ? lockdep_hardirqs_on+0x296/0x5b0
[  283.762504]  ? trace_hardirqs_on+0xbd/0x310
[  283.766832]  ? kasan_check_read+0x11/0x20
[  283.771001]  ? __run_timers+0x7da/0xc70
[  283.774978]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.780088]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.784358]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.788591]  __run_timers+0x7e5/0xc70
[  283.792406]  ? timer_fixup_init+0x70/0x70
[  283.796560]  ? lock_acquire+0x1ed/0x520
[  283.800540]  ? zap_class+0x640/0x640
[  283.804271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.809820]  ? kasan_check_read+0x11/0x20
[  283.813974]  ? do_raw_spin_lock+0x14f/0x350
[  283.818304]  ? find_held_lock+0x36/0x1c0
[  283.822373]  ? zap_class+0x640/0x640
[  283.826094]  ? pvclock_read_flags+0x160/0x160
[  283.830607]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.836164]  ? check_preemption_disabled+0x48/0x280
[  283.841193]  ? __lock_is_held+0xb5/0x140
[  283.845264]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.850808]  ? check_preemption_disabled+0x48/0x280
[  283.855836]  run_timer_softirq+0x52/0xb0
[  283.859907]  ? rcu_read_lock_sched_held+0x14f/0x180
[  283.864967]  __do_softirq+0x308/0xb7e
[  283.868778]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  283.873274]  ? lock_downgrade+0x900/0x900
[  283.877431]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  283.883084]  ? pvclock_read_flags+0x160/0x160
[  283.887585]  ? lapic_next_event+0x5a/0x90
[  283.891739]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.897285]  ? kvm_clock_read+0x18/0x30
[  283.901270]  ? kvm_sched_clock_read+0x9/0x20
[  283.905959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.911520]  ? check_preemption_disabled+0x48/0x280
[  283.916554]  irq_exit+0x17f/0x1c0
[  283.920023]  smp_apic_timer_interrupt+0x1cb/0x760
[  283.924867]  ? smp_call_function_single_interrupt+0x159/0x650
[  283.930756]  ? smp_call_function_single_interrupt+0x650/0x650
[  283.936641]  ? interrupt_entry+0xb5/0xc0
[  283.940709]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.945744]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.950766]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.955614]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.960630]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.965661]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.970533]  apic_timer_interrupt+0xf/0x20
[  283.974768]  </IRQ>
[  283.977011] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  283.981949] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  284.000854] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  284.008566] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  284.015853] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  284.023124] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  284.030396] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  284.037664] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  284.044999]  skb_clone+0x1bb/0x500
[  284.048566]  ? skb_split+0x11e0/0x11e0
[  284.052470]  ? check_preemption_disabled+0x48/0x280
[  284.057513]  ? __this_cpu_preempt_check+0x1c/0x20
[  284.062368]  ? __bpf_redirect+0x54b/0xb20
[  284.066534]  bpf_clone_redirect+0xb9/0x490
[  284.070785]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  284.075837]  ? __sched_text_start+0x8/0x8
[  284.079988]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  284.084759]  ? find_held_lock+0x36/0x1c0
[  284.088842]  ? lock_acquire+0x1ed/0x520
[  284.092816]  ? bpf_test_run+0x3cb/0x780
[  284.096792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.102335]  ? check_preemption_disabled+0x48/0x280
[  284.107376]  ? kasan_check_read+0x11/0x20
[  284.111529]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.116807]  ? rcu_softirq_qs+0x20/0x20
[  284.120795]  ? preempt_schedule+0x4d/0x60
[  284.124959]  ? ___preempt_schedule+0x16/0x18
[  284.129377]  ? bpf_test_run+0x25d/0x780
[  284.133486]  ? netlink_diag_dump+0x2a0/0x2a0
[  284.137908]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  284.142677]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  284.147449]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  284.152290]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  284.157831]  ? fput+0x130/0x1a0
[  284.161113]  ? __bpf_prog_get+0x9b/0x290
[  284.165179]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  284.170028]  ? bpf_prog_test_run+0x130/0x1a0
[  284.174441]  ? __x64_sys_bpf+0x3d8/0x520
[  284.178505]  ? bpf_prog_get+0x20/0x20
[  284.182334]  ? do_syscall_64+0x1b9/0x820
[  284.186398]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  284.191768]  ? syscall_return_slowpath+0x5e0/0x5e0
[  284.196703]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.201577]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.206615]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  284.211637]  ? prepare_exit_to_usermode+0x291/0x3b0
[  284.216660]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.221511]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  284.226898] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  284.227000] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  284.233841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  284.233846] Call Trace:
[  284.233854]  <IRQ>
[  284.233873]  dump_stack+0x244/0x39d
[  284.233892]  ? dump_stack_print_info.cold.1+0x20/0x20
[  284.233930]  warn_alloc.cold.116+0xb7/0x1bd
[  284.240461] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  284.250230]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  284.252799] syz-executor4 cpuset=syz4 mems_allowed=0
[  284.254958]  ? lock_downgrade+0x900/0x900
[  284.292591]  ? trace_hardirqs_off+0xb8/0x310
[  284.297011]  ? trace_hardirqs_off+0xb8/0x310
[  284.301440]  __alloc_pages_slowpath+0x26e8/0x2e10
[  284.306313]  ? warn_alloc+0x120/0x120
[  284.310134]  ? print_usage_bug+0xc0/0xc0
[  284.314201]  ? warn_alloc+0x120/0x120
[  284.318007]  ? warn_alloc+0x120/0x120
[  284.321819]  ? print_usage_bug+0xc0/0xc0
[  284.325906]  ? print_usage_bug+0xc0/0xc0
[  284.329981]  ? __lock_acquire+0x62f/0x4c20
[  284.334223]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.339771]  ? should_fail+0x22d/0xd01
[  284.343668]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.348776]  ? __lock_acquire+0x62f/0x4c20
[  284.353024]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.358127]  ? __lock_acquire+0x62f/0x4c20
[  284.362365]  ? should_fail+0x22d/0xd01
[  284.366257]  ? find_held_lock+0x36/0x1c0
[  284.370330]  ? mark_held_locks+0x130/0x130
[  284.374575]  ? mark_held_locks+0x130/0x130
[  284.378822]  ? zap_class+0x640/0x640
[  284.382537]  ? zap_class+0x640/0x640
[  284.386304]  ? print_usage_bug+0xc0/0xc0
[  284.390366]  ? do_raw_spin_unlock+0xa7/0x330
[  284.394778]  ? zap_class+0x640/0x640
[  284.398491]  ? print_usage_bug+0xc0/0xc0
[  284.402557]  ? wq_watchdog_touch+0x9c/0xfe
[  284.406802]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.412345]  ? check_preemption_disabled+0x48/0x280
[  284.417376]  ? __lock_is_held+0xb5/0x140
[  284.421445]  __alloc_pages_nodemask+0xa80/0xde0
[  284.426120]  ? zap_class+0x640/0x640
[  284.429867]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  284.434941]  ? find_held_lock+0x36/0x1c0
[  284.439040]  ? ____cache_alloc_node+0x1c7/0x1e0
[  284.443737]  ? lock_downgrade+0x900/0x900
[  284.447896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.453446]  cache_grow_begin+0xa5/0x8c0
[  284.457509]  ? do_raw_spin_unlock+0xa7/0x330
[  284.461937]  fallback_alloc+0x204/0x2e0
[  284.465930]  ____cache_alloc_node+0x1c7/0x1e0
[  284.470438]  kmem_cache_alloc_node+0xe3/0x730
[  284.474949]  ? ipv6_get_ifaddr+0x42e/0x620
[  284.479197]  __alloc_skb+0x119/0x770
[  284.482920]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.488204]  ? netdev_alloc_frag+0x1f0/0x1f0
[  284.492636]  ? lock_downgrade+0x900/0x900
[  284.496794]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.502348]  ? refcount_sub_and_test_checked+0x203/0x310
[  284.507802]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  284.513255]  ? addrconf_rs_timer+0x690/0x690
[  284.517695]  ndisc_alloc_skb+0x144/0x340
[  284.521762]  ndisc_send_rs+0x331/0x6e0
[  284.525660]  addrconf_rs_timer+0x314/0x690
[  284.529904]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.534173]  call_timer_fn+0x272/0x920
[  284.538061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.542297]  ? process_timeout+0x40/0x40
[  284.546371]  ? mark_held_locks+0xc7/0x130
[  284.550520]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.555019]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.559516]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.563757]  ? lockdep_hardirqs_on+0x296/0x5b0
[  284.568348]  ? trace_hardirqs_on+0xbd/0x310
[  284.572672]  ? kasan_check_read+0x11/0x20
[  284.576834]  ? __run_timers+0x7da/0xc70
[  284.580816]  ? trace_hardirqs_off_caller+0x310/0x310
[  284.585934]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.590180]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.594413]  __run_timers+0x7e5/0xc70
[  284.598228]  ? timer_fixup_init+0x70/0x70
[  284.602382]  ? kasan_check_read+0x11/0x20
[  284.606531]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.611808]  ? rcu_softirq_qs+0x20/0x20
[  284.615789]  ? mark_held_locks+0xc7/0x130
[  284.619950]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  284.624710]  ? retint_kernel+0x2d/0x2d
[  284.628601]  ? trace_hardirqs_on_caller+0xc0/0x310
[  284.633531]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  284.638293]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  284.643750]  ? zap_class+0x640/0x640
[  284.647470]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.653009]  ? check_preemption_disabled+0x48/0x280
[  284.658048]  ? __lock_is_held+0xb5/0x140
[  284.662113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.667658]  ? check_preemption_disabled+0x48/0x280
[  284.672682]  run_timer_softirq+0x52/0xb0
[  284.676749]  ? rcu_read_lock_sched_held+0x14f/0x180
[  284.681789]  __do_softirq+0x308/0xb7e
[  284.685593]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  284.690088]  ? lock_downgrade+0x900/0x900
[  284.694239]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  284.699350]  ? pvclock_read_flags+0x160/0x160
[  284.703849]  ? lapic_next_event+0x5a/0x90
[  284.708006]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.713559]  ? kvm_clock_read+0x18/0x30
[  284.717537]  ? kvm_sched_clock_read+0x9/0x20
[  284.721951]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.727492]  ? check_preemption_disabled+0x48/0x280
[  284.732522]  irq_exit+0x17f/0x1c0
[  284.735981]  smp_apic_timer_interrupt+0x1cb/0x760
[  284.740842]  ? smp_call_function_single_interrupt+0x650/0x650
[  284.746727]  ? interrupt_entry+0xb5/0xc0
[  284.751211]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.756227]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.761249]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.766094]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.771114]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.776134]  ? task_prio+0x50/0x50
[  284.779677]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.785248]  ? check_preemption_disabled+0x48/0x280
[  284.790273]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.795130]  apic_timer_interrupt+0xf/0x20
[  284.799361]  </IRQ>
[  284.801605] RIP: 0010:dump_stack+0x358/0x39d
[  284.806277] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  284.825192] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  284.832910] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  284.840189] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  284.847629] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  284.854899] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  284.862174] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  284.869470]  ? dump_stack+0x34f/0x39d
[  284.873284]  ? dump_stack_print_info.cold.1+0x20/0x20
[  284.878479]  ? mark_held_locks+0x130/0x130
[  284.882724]  ? mark_held_locks+0x130/0x130
[  284.886966]  dump_header+0x27b/0xf72
[  284.890692]  ? pagefault_out_of_memory+0x197/0x197
[  284.895633]  ? __lock_acquire+0x62f/0x4c20
[  284.899886]  ? percpu_ref_get_many+0x240/0x240
[  284.904484]  ? print_usage_bug+0xc0/0xc0
[  284.908552]  ? zap_class+0x640/0x640
[  284.912269]  ? print_usage_bug+0xc0/0xc0
[  284.916329]  ? print_usage_bug+0xc0/0xc0
[  284.920395]  ? zap_class+0x640/0x640
[  284.924114]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.929658]  ? find_held_lock+0x36/0x1c0
[  284.933729]  ? mark_held_locks+0xc7/0x130
[  284.937880]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  284.942989]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  284.948102]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  284.952688]  ? trace_hardirqs_on+0xbd/0x310
[  284.957012]  ? kasan_check_read+0x11/0x20
[  284.961169]  ? ___ratelimit+0x3b4/0x672
[  284.965150]  ? trace_hardirqs_off_caller+0x310/0x310
[  284.970254]  ? trace_hardirqs_on+0x310/0x310
[  284.974678]  ? lock_downgrade+0x900/0x900
[  284.978847]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  284.983965]  ? ___ratelimit+0x3b9/0x672
[  284.987948]  ? idr_get_free+0xf70/0xf70
[  284.991936]  ? find_held_lock+0x36/0x1c0
[  284.996020]  oom_kill_process.cold.27+0x10/0x903
[  285.000782]  ? zap_class+0x640/0x640
[  285.004498]  ? check_preemption_disabled+0x48/0x280
[  285.009518]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  285.014453]  ? kasan_check_read+0x11/0x20
[  285.018600]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.023882]  ? oom_evaluate_task+0x540/0x540
[  285.028304]  ? find_held_lock+0x36/0x1c0
[  285.032375]  ? out_of_memory+0x974/0x1430
[  285.036529]  ? lock_downgrade+0x900/0x900
[  285.040684]  ? check_preemption_disabled+0x48/0x280
[  285.046376]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  285.051313]  ? kasan_check_read+0x11/0x20
[  285.055461]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.060747]  ? rcu_softirq_qs+0x20/0x20
[  285.064733]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.070281]  ? oom_evaluate_task+0x302/0x540
[  285.074694]  out_of_memory+0xa84/0x1430
[  285.078677]  ? oom_killer_disable+0x3a0/0x3a0
[  285.083174]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  285.088116]  ? __ww_mutex_check_waiters+0x160/0x160
[  285.093145]  __alloc_pages_slowpath+0x2354/0x2e10
[  285.098024]  ? warn_alloc+0x120/0x120
[  285.101829]  ? mark_held_locks+0x130/0x130
[  285.106074]  ? find_get_entry+0xaae/0x1120
[  285.110405]  ? filemap_map_pages+0x1a20/0x1a20
[  285.114997]  ? zap_class+0x640/0x640
[  285.118725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.124268]  ? check_preemption_disabled+0x48/0x280
[  285.129309]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.134846]  ? should_fail+0x22d/0xd01
[  285.138741]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  285.143867]  ? zap_class+0x640/0x640
[  285.147606]  ? __lock_is_held+0xb5/0x140
[  285.151674]  ? mark_held_locks+0x130/0x130
[  285.155921]  ? lock_release+0xa00/0xa00
[  285.159897]  ? perf_trace_sched_process_exec+0x860/0x860
[  285.165366]  ? xa_load+0x2ba/0x460
[  285.168908]  ? lock_downgrade+0x900/0x900
[  285.173069]  ? __might_sleep+0x95/0x190
[  285.177055]  __alloc_pages_nodemask+0xa80/0xde0
[  285.181738]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  285.186760]  ? __page_cache_alloc+0x191/0x5c0
[  285.191256]  ? xa_load+0x2e1/0x460
[  285.195116]  ? xa_clear_mark+0x40/0x40
[  285.199007]  ? zap_class+0x640/0x640
[  285.202738]  ? zap_class+0x640/0x640
[  285.206451]  ? zap_class+0x640/0x640
[  285.210181]  ? __do_page_cache_readahead+0x663/0x810
[  285.215288]  ? find_held_lock+0x36/0x1c0
[  285.219368]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  285.224925]  alloc_pages_current+0x173/0x350
[  285.229341]  __page_cache_alloc+0x38c/0x5c0
[  285.233660]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  285.238593]  ? kasan_check_read+0x11/0x20
[  285.242739]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.248027]  ? generic_perform_write+0x6a0/0x6a0
[  285.252784]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.258328]  ? check_preemption_disabled+0x48/0x280
[  285.263351]  filemap_fault+0x1595/0x25f0
[  285.267425]  ? __lock_page_or_retry+0xa00/0xa00
[  285.272138]  ? mark_held_locks+0x130/0x130
[  285.276383]  ? filemap_map_pages+0xd6b/0x1a20
[  285.280884]  ? lock_downgrade+0x900/0x900
[  285.285070]  ? check_preemption_disabled+0x48/0x280
[  285.290096]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  285.295056]  ? kasan_check_read+0x11/0x20
[  285.299213]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.304490]  ? rcu_softirq_qs+0x20/0x20
[  285.308482]  ? filemap_map_pages+0xd92/0x1a20
[  285.313001]  ? find_get_entries_tag+0x1400/0x1400
[  285.317847]  ? find_held_lock+0x36/0x1c0
[  285.321959]  ? lock_acquire+0x1ed/0x520
[  285.325939]  ? ext4_filemap_fault+0x7a/0xad
[  285.330273]  ? lock_release+0xa00/0xa00
[  285.334245]  ? perf_trace_sched_process_exec+0x860/0x860
[  285.339712]  ? print_usage_bug+0xc0/0xc0
[  285.343775]  ? print_usage_bug+0xc0/0xc0
[  285.347880]  ? down_read+0x8d/0x120
[  285.351505]  ? ext4_filemap_fault+0x7a/0xad
[  285.355840]  ? __down_interruptible+0x700/0x700
[  285.360520]  ext4_filemap_fault+0x82/0xad
[  285.364674]  __do_fault+0x100/0x6b0
[  285.368304]  ? find_held_lock+0x36/0x1c0
[  285.372368]  ? pmd_devmap_trans_unstable+0x220/0x220
[  285.377479]  ? mark_held_locks+0x130/0x130
[  285.381722]  ? mark_held_locks+0x130/0x130
[  285.385972]  ? kasan_check_read+0x11/0x20
[  285.390128]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.395675]  __handle_mm_fault+0x3ea0/0x5be0
[  285.400088]  ? perf_trace_lock+0x7a0/0x7a0
[  285.404339]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  285.409190]  ? __switch_to_asm+0x34/0x70
[  285.413251]  ? __switch_to_asm+0x34/0x70
[  285.417327]  ? zap_class+0x640/0x640
[  285.421044]  ? zap_class+0x640/0x640
[  285.424756]  ? __x64_sys_futex+0x53e/0x6a0
[  285.429022]  ? find_held_lock+0x36/0x1c0
[  285.433099]  ? handle_mm_fault+0x42a/0xc70
[  285.437338]  ? lock_downgrade+0x900/0x900
[  285.441486]  ? check_preemption_disabled+0x48/0x280
[  285.446510]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  285.451444]  ? kasan_check_read+0x11/0x20
[  285.455591]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.460867]  ? rcu_softirq_qs+0x20/0x20
[  285.464844]  ? trace_hardirqs_off_caller+0x310/0x310
[  285.469958]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.475501]  ? check_preemption_disabled+0x48/0x280
[  285.480532]  handle_mm_fault+0x54f/0xc70
[  285.484601]  ? __handle_mm_fault+0x5be0/0x5be0
[  285.489186]  ? find_vma+0x34/0x190
[  285.492734]  __do_page_fault+0x5e8/0xe60
[  285.496796]  ? trace_hardirqs_off+0xb8/0x310
[  285.501216]  do_page_fault+0xf2/0x7e0
[  285.505023]  ? vmalloc_sync_all+0x30/0x30
[  285.509180]  ? error_entry+0x70/0xd0
[  285.512905]  ? trace_hardirqs_off_caller+0xbb/0x310
[  285.517935]  ? trace_hardirqs_on_caller+0xc0/0x310
[  285.522866]  ? syscall_return_slowpath+0x5e0/0x5e0
[  285.527799]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.532644]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.537677]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  285.543135]  ? prepare_exit_to_usermode+0x291/0x3b0
[  285.548159]  ? page_fault+0x8/0x30
[  285.551701]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.556548]  ? page_fault+0x8/0x30
[  285.560091]  page_fault+0x1e/0x30
[  285.563562] RIP: 0033:0x44b69a
[  285.566776] Code: Bad RIP value.
[  285.570139] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  285.575499] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  285.582783] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  285.590063] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  285.597330] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  285.604599] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  285.611900] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  285.611905] warn_alloc_show_mem: 1 callbacks suppressed
[  285.611920] Mem-Info:
[  285.619113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  285.624494] active_anon:47227 inactive_anon:190 isolated_anon:0
[  285.624494]  active_file:11 inactive_file:14 isolated_file:0
[  285.624494]  unevictable:0 dirty:0 writeback:0 unstable:0
[  285.624494]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  285.624494]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  285.624494]  free:13756 free_pcp:235 free_cma:0
[  285.626866] Call Trace:
[  285.636258] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  285.669116]  <IRQ>
[  285.671692] 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
[  285.699205]  dump_stack+0x244/0x39d
[  285.701327] lowmem_reserve[]: 0 2818 6321 6321
[  285.727450]  ? dump_stack_print_info.cold.1+0x20/0x20
[  285.731047] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  285.735634]  warn_alloc.cold.116+0xb7/0x1bd
[  285.740786] lowmem_reserve[]: 0 0 3503 3503
[  285.768127]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  285.772421] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  285.776741]  ? lock_downgrade+0x900/0x900
[  285.781555] lowmem_reserve[]: 0 0 0 0
[  285.810464]  ? trace_hardirqs_off+0xb8/0x310
[  285.814585] 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
[  285.818383]  ? trace_hardirqs_off+0xb8/0x310
[  285.822761] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  285.836294]  __alloc_pages_slowpath+0x26e8/0x2e10
[  285.840695] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  285.855990]  ? warn_alloc+0x120/0x120
[  285.860790] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  285.875891]  ? print_usage_bug+0xc0/0xc0
[  285.879667] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  285.888967]  ? warn_alloc+0x120/0x120
[  285.893023] 269 total pagecache pages
[  285.901597]  ? warn_alloc+0x120/0x120
[  285.905374] 0 pages in swap cache
[  285.909161]  ? print_usage_bug+0xc0/0xc0
[  285.912940] Swap cache stats: add 0, delete 0, find 0/0
[  285.916386]  ? print_usage_bug+0xc0/0xc0
[  285.920420] Free swap  = 0kB
[  285.925776]  ? __lock_acquire+0x62f/0x4c20
[  285.929810] Total swap = 0kB
[  285.932826]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.937034] 1965979 pages RAM
[  285.940053]  ? should_fail+0x22d/0xd01
[  285.945561] 0 pages HighMem/MovableOnly
[  285.948665]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  285.952527] 342853 pages reserved
[  285.956499]  ? __lock_acquire+0x62f/0x4c20
[  285.961570] 0 pages cma reserved
[  285.965023]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  285.969347] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  285.972586]  ? __lock_acquire+0x62f/0x4c20
[  285.972600]  ? should_fail+0x22d/0xd01
[  285.972619]  ? find_held_lock+0x36/0x1c0
[  285.977769] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  285.984189]  ? mark_held_locks+0x130/0x130
[  285.988397] syz-fuzzer cpuset=/ mems_allowed=0
[  285.992279]  ? mark_held_locks+0x130/0x130
[  286.019543]  ? zap_class+0x640/0x640
[  286.023262]  ? zap_class+0x640/0x640
[  286.026994]  ? print_usage_bug+0xc0/0xc0
[  286.031082]  ? do_raw_spin_unlock+0xa7/0x330
[  286.035505]  ? zap_class+0x640/0x640
[  286.039225]  ? print_usage_bug+0xc0/0xc0
[  286.043288]  ? wq_watchdog_touch+0x9c/0xfe
[  286.047535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.053092]  ? check_preemption_disabled+0x48/0x280
[  286.058227]  ? __lock_is_held+0xb5/0x140
[  286.062296]  __alloc_pages_nodemask+0xa80/0xde0
[  286.066966]  ? zap_class+0x640/0x640
[  286.070689]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  286.075719]  ? find_held_lock+0x36/0x1c0
[  286.079822]  ? ____cache_alloc_node+0x1c7/0x1e0
[  286.084540]  ? lock_downgrade+0x900/0x900
[  286.088732]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.094293]  cache_grow_begin+0xa5/0x8c0
[  286.098375]  ? do_raw_spin_unlock+0xa7/0x330
[  286.102819]  fallback_alloc+0x204/0x2e0
[  286.106802]  ____cache_alloc_node+0x1c7/0x1e0
[  286.111303]  kmem_cache_alloc_node+0xe3/0x730
[  286.115815]  ? ipv6_get_ifaddr+0x42e/0x620
[  286.120061]  __alloc_skb+0x119/0x770
[  286.123774]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.129055]  ? netdev_alloc_frag+0x1f0/0x1f0
[  286.133479]  ? lock_downgrade+0x900/0x900
[  286.137635]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.143175]  ? refcount_sub_and_test_checked+0x203/0x310
[  286.148634]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  286.154095]  ? addrconf_rs_timer+0x690/0x690
[  286.158535]  ndisc_alloc_skb+0x144/0x340
[  286.162604]  ndisc_send_rs+0x331/0x6e0
[  286.166508]  addrconf_rs_timer+0x314/0x690
[  286.170764]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.175014]  call_timer_fn+0x272/0x920
[  286.178901]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.183149]  ? process_timeout+0x40/0x40
[  286.187259]  ? __run_timers+0x7da/0xc70
[  286.191280]  ? _raw_spin_unlock_irq+0x27/0x80
[  286.195787]  ? _raw_spin_unlock_irq+0x27/0x80
[  286.200280]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.204777]  ? lockdep_hardirqs_on+0x296/0x5b0
[  286.209363]  ? trace_hardirqs_on+0xbd/0x310
[  286.213685]  ? kasan_check_read+0x11/0x20
[  286.217831]  ? __run_timers+0x7da/0xc70
[  286.221808]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.226929]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.231173]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.235408]  __run_timers+0x7e5/0xc70
[  286.239226]  ? timer_fixup_init+0x70/0x70
[  286.243432]  ? lock_acquire+0x1ed/0x520
[  286.247440]  ? zap_class+0x640/0x640
[  286.251159]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.256703]  ? kasan_check_read+0x11/0x20
[  286.260864]  ? do_raw_spin_lock+0x14f/0x350
[  286.265192]  ? find_held_lock+0x36/0x1c0
[  286.269259]  ? zap_class+0x640/0x640
[  286.273005]  ? pvclock_read_flags+0x160/0x160
[  286.277503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.283047]  ? check_preemption_disabled+0x48/0x280
[  286.288072]  ? __lock_is_held+0xb5/0x140
[  286.292150]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.297688]  ? check_preemption_disabled+0x48/0x280
[  286.302736]  run_timer_softirq+0x52/0xb0
[  286.306813]  ? rcu_read_lock_sched_held+0x14f/0x180
[  286.311833]  __do_softirq+0x308/0xb7e
[  286.315635]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  286.320132]  ? lock_downgrade+0x900/0x900
[  286.324283]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  286.329396]  ? pvclock_read_flags+0x160/0x160
[  286.333899]  ? lapic_next_event+0x5a/0x90
[  286.338059]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.343601]  ? kvm_clock_read+0x18/0x30
[  286.347572]  ? kvm_sched_clock_read+0x9/0x20
[  286.351984]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.357529]  ? check_preemption_disabled+0x48/0x280
[  286.362560]  irq_exit+0x17f/0x1c0
[  286.366016]  smp_apic_timer_interrupt+0x1cb/0x760
[  286.370865]  ? smp_call_function_single_interrupt+0x159/0x650
[  286.376749]  ? smp_call_function_single_interrupt+0x650/0x650
[  286.382633]  ? interrupt_entry+0xb5/0xc0
[  286.386713]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.391728]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.396766]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.401627]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.406639]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.411667]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.416530]  apic_timer_interrupt+0xf/0x20
[  286.420803]  </IRQ>
[  286.423052] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  286.428000] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  286.446903] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  286.454617] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  286.461884] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  286.469157] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  286.476423] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  286.483692] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  286.491059]  skb_clone+0x1bb/0x500
[  286.494603]  ? skb_split+0x11e0/0x11e0
[  286.498507]  ? check_preemption_disabled+0x48/0x280
[  286.503559]  ? __this_cpu_preempt_check+0x1c/0x20
[  286.508402]  ? __bpf_redirect+0x54b/0xb20
[  286.512555]  bpf_clone_redirect+0xb9/0x490
[  286.516796]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  286.521817]  ? __sched_text_start+0x8/0x8
[  286.525969]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  286.530737]  ? find_held_lock+0x36/0x1c0
[  286.534807]  ? lock_acquire+0x1ed/0x520
[  286.538787]  ? bpf_test_run+0x3cb/0x780
[  286.542763]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.548304]  ? check_preemption_disabled+0x48/0x280
[  286.553353]  ? kasan_check_read+0x11/0x20
[  286.557505]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.562785]  ? rcu_softirq_qs+0x20/0x20
[  286.566778]  ? preempt_schedule+0x4d/0x60
[  286.570955]  ? ___preempt_schedule+0x16/0x18
[  286.575375]  ? bpf_test_run+0x25d/0x780
[  286.579363]  ? netlink_diag_dump+0x2a0/0x2a0
[  286.583777]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  286.588540]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  286.593325]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  286.598172]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  286.603712]  ? fput+0x130/0x1a0
[  286.606991]  ? __bpf_prog_get+0x9b/0x290
[  286.611054]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  286.615892]  ? bpf_prog_test_run+0x130/0x1a0
[  286.620337]  ? __x64_sys_bpf+0x3d8/0x520
[  286.624398]  ? bpf_prog_get+0x20/0x20
[  286.628233]  ? do_syscall_64+0x1b9/0x820
[  286.632318]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  286.637680]  ? syscall_return_slowpath+0x5e0/0x5e0
[  286.642611]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.647456]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.652476]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  286.657494]  ? prepare_exit_to_usermode+0x291/0x3b0
[  286.662524]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.667374]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  286.672770] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  286.672857] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  286.679700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  286.679709] Call Trace:
[  286.686319] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  286.695548]  <IRQ>
[  286.698117] syz-executor4 cpuset=syz4 mems_allowed=0
[  286.708621]  dump_stack+0x244/0x39d
[  286.719469]  ? dump_stack_print_info.cold.1+0x20/0x20
[  286.724678]  warn_alloc.cold.116+0xb7/0x1bd
[  286.729024]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  286.733878]  ? lock_downgrade+0x900/0x900
[  286.738042]  ? trace_hardirqs_off+0xb8/0x310
[  286.742476]  ? trace_hardirqs_off+0xb8/0x310
[  286.746904]  __alloc_pages_slowpath+0x26e8/0x2e10
[  286.752235]  ? warn_alloc+0x120/0x120
[  286.756069]  ? print_usage_bug+0xc0/0xc0
[  286.760157]  ? warn_alloc+0x120/0x120
[  286.763968]  ? warn_alloc+0x120/0x120
[  286.767799]  ? print_usage_bug+0xc0/0xc0
[  286.771864]  ? print_usage_bug+0xc0/0xc0
[  286.775933]  ? __lock_acquire+0x62f/0x4c20
[  286.780177]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.785712]  ? should_fail+0x22d/0xd01
[  286.789605]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.794706]  ? __lock_acquire+0x62f/0x4c20
[  286.798950]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.804053]  ? __lock_acquire+0x62f/0x4c20
[  286.808289]  ? should_fail+0x22d/0xd01
[  286.812206]  ? find_held_lock+0x36/0x1c0
[  286.816275]  ? mark_held_locks+0x130/0x130
[  286.820517]  ? mark_held_locks+0x130/0x130
[  286.824751]  ? zap_class+0x640/0x640
[  286.828464]  ? zap_class+0x640/0x640
[  286.832178]  ? print_usage_bug+0xc0/0xc0
[  286.836251]  ? do_raw_spin_unlock+0xa7/0x330
[  286.840671]  ? zap_class+0x640/0x640
[  286.844388]  ? print_usage_bug+0xc0/0xc0
[  286.848453]  ? wq_watchdog_touch+0x9c/0xfe
[  286.852691]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.858243]  ? check_preemption_disabled+0x48/0x280
[  286.863283]  ? __lock_is_held+0xb5/0x140
[  286.867359]  __alloc_pages_nodemask+0xa80/0xde0
[  286.872038]  ? zap_class+0x640/0x640
[  286.875761]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  286.880789]  ? find_held_lock+0x36/0x1c0
[  286.884863]  ? ____cache_alloc_node+0x1c7/0x1e0
[  286.889534]  ? lock_downgrade+0x900/0x900
[  286.893702]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.899237]  cache_grow_begin+0xa5/0x8c0
[  286.903297]  ? do_raw_spin_unlock+0xa7/0x330
[  286.907713]  fallback_alloc+0x204/0x2e0
[  286.911694]  ____cache_alloc_node+0x1c7/0x1e0
[  286.916195]  kmem_cache_alloc_node+0xe3/0x730
[  286.920703]  ? ipv6_get_ifaddr+0x42e/0x620
[  286.924968]  __alloc_skb+0x119/0x770
[  286.928686]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.933973]  ? netdev_alloc_frag+0x1f0/0x1f0
[  286.938385]  ? lock_downgrade+0x900/0x900
[  286.942543]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.948092]  ? refcount_sub_and_test_checked+0x203/0x310
[  286.953565]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  286.959022]  ? addrconf_rs_timer+0x690/0x690
[  286.963448]  ndisc_alloc_skb+0x144/0x340
[  286.967529]  ndisc_send_rs+0x331/0x6e0
[  286.971425]  addrconf_rs_timer+0x314/0x690
[  286.975664]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.979956]  call_timer_fn+0x272/0x920
[  286.983857]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  286.988094]  ? process_timeout+0x40/0x40
[  286.992168]  ? mark_held_locks+0xc7/0x130
[  286.996321]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.000810]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.005299]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.009537]  ? lockdep_hardirqs_on+0x296/0x5b0
[  287.014136]  ? trace_hardirqs_on+0xbd/0x310
[  287.018457]  ? kasan_check_read+0x11/0x20
[  287.022602]  ? __run_timers+0x7da/0xc70
[  287.026577]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.031702]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.035978]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.040216]  __run_timers+0x7e5/0xc70
[  287.044029]  ? timer_fixup_init+0x70/0x70
[  287.048179]  ? kasan_check_read+0x11/0x20
[  287.052327]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.057600]  ? rcu_softirq_qs+0x20/0x20
[  287.061586]  ? mark_held_locks+0xc7/0x130
[  287.065739]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  287.070515]  ? retint_kernel+0x2d/0x2d
[  287.074401]  ? trace_hardirqs_on_caller+0xc0/0x310
[  287.079331]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  287.084099]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  287.089551]  ? zap_class+0x640/0x640
[  287.093271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.098812]  ? check_preemption_disabled+0x48/0x280
[  287.103856]  ? __lock_is_held+0xb5/0x140
[  287.108351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.113888]  ? check_preemption_disabled+0x48/0x280
[  287.118924]  run_timer_softirq+0x52/0xb0
[  287.122986]  ? rcu_read_lock_sched_held+0x14f/0x180
[  287.128011]  __do_softirq+0x308/0xb7e
[  287.131821]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  287.136326]  ? lock_downgrade+0x900/0x900
[  287.140507]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  287.145633]  ? pvclock_read_flags+0x160/0x160
[  287.150168]  ? lapic_next_event+0x5a/0x90
[  287.154344]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.159885]  ? kvm_clock_read+0x18/0x30
[  287.163895]  ? kvm_sched_clock_read+0x9/0x20
[  287.168312]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.173864]  ? check_preemption_disabled+0x48/0x280
[  287.178909]  irq_exit+0x17f/0x1c0
[  287.182416]  smp_apic_timer_interrupt+0x1cb/0x760
[  287.187260]  ? smp_call_function_single_interrupt+0x650/0x650
[  287.193147]  ? interrupt_entry+0xb5/0xc0
[  287.197213]  ? trace_hardirqs_off_caller+0xbb/0x310
[  287.202225]  ? trace_hardirqs_off_caller+0xbb/0x310
[  287.207275]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.212119]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.217138]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.222154]  ? task_prio+0x50/0x50
[  287.225722]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.231384]  ? check_preemption_disabled+0x48/0x280
[  287.236408]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.241255]  apic_timer_interrupt+0xf/0x20
[  287.245481]  </IRQ>
[  287.247716] RIP: 0010:dump_stack+0x358/0x39d
[  287.252126] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  287.271028] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  287.278737] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  287.286023] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  287.293332] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  287.300599] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  287.307866] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  287.315145]  ? dump_stack+0x34f/0x39d
[  287.318974]  ? dump_stack_print_info.cold.1+0x20/0x20
[  287.324167]  ? mark_held_locks+0x130/0x130
[  287.328416]  ? mark_held_locks+0x130/0x130
[  287.332657]  dump_header+0x27b/0xf72
[  287.336382]  ? pagefault_out_of_memory+0x197/0x197
[  287.341319]  ? __lock_acquire+0x62f/0x4c20
[  287.345558]  ? percpu_ref_get_many+0x240/0x240
[  287.350141]  ? print_usage_bug+0xc0/0xc0
[  287.354211]  ? zap_class+0x640/0x640
[  287.357953]  ? print_usage_bug+0xc0/0xc0
[  287.362021]  ? print_usage_bug+0xc0/0xc0
[  287.366098]  ? zap_class+0x640/0x640
[  287.369816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.375405]  ? find_held_lock+0x36/0x1c0
[  287.379492]  ? mark_held_locks+0xc7/0x130
[  287.383641]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  287.388757]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  287.393877]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  287.398468]  ? trace_hardirqs_on+0xbd/0x310
[  287.402797]  ? kasan_check_read+0x11/0x20
[  287.406980]  ? ___ratelimit+0x3b4/0x672
[  287.410966]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.416071]  ? trace_hardirqs_on+0x310/0x310
[  287.420482]  ? lock_downgrade+0x900/0x900
[  287.424638]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  287.429739]  ? ___ratelimit+0x3b9/0x672
[  287.433729]  ? idr_get_free+0xf70/0xf70
[  287.437706]  ? find_held_lock+0x36/0x1c0
[  287.441779]  oom_kill_process.cold.27+0x10/0x903
[  287.446532]  ? zap_class+0x640/0x640
[  287.450252]  ? check_preemption_disabled+0x48/0x280
[  287.455270]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  287.460200]  ? kasan_check_read+0x11/0x20
[  287.464347]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.469626]  ? oom_evaluate_task+0x540/0x540
[  287.474040]  ? find_held_lock+0x36/0x1c0
[  287.478117]  ? out_of_memory+0x974/0x1430
[  287.482265]  ? lock_downgrade+0x900/0x900
[  287.486417]  ? check_preemption_disabled+0x48/0x280
[  287.491434]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  287.496362]  ? kasan_check_read+0x11/0x20
[  287.500507]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.505786]  ? rcu_softirq_qs+0x20/0x20
[  287.509769]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.515303]  ? oom_evaluate_task+0x302/0x540
[  287.519713]  out_of_memory+0xa84/0x1430
[  287.523713]  ? oom_killer_disable+0x3a0/0x3a0
[  287.528291]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  287.533272]  ? __ww_mutex_check_waiters+0x160/0x160
[  287.538299]  __alloc_pages_slowpath+0x2354/0x2e10
[  287.543171]  ? warn_alloc+0x120/0x120
[  287.546972]  ? mark_held_locks+0x130/0x130
[  287.551215]  ? find_get_entry+0xaae/0x1120
[  287.555463]  ? filemap_map_pages+0x1a20/0x1a20
[  287.560053]  ? zap_class+0x640/0x640
[  287.563774]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.569314]  ? check_preemption_disabled+0x48/0x280
[  287.574329]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.579866]  ? should_fail+0x22d/0xd01
[  287.583759]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.588866]  ? zap_class+0x640/0x640
[  287.592604]  ? __lock_is_held+0xb5/0x140
[  287.596673]  ? mark_held_locks+0x130/0x130
[  287.600913]  ? lock_release+0xa00/0xa00
[  287.604910]  ? perf_trace_sched_process_exec+0x860/0x860
[  287.610379]  ? xa_load+0x2ba/0x460
[  287.613943]  ? lock_downgrade+0x900/0x900
[  287.618097]  ? __might_sleep+0x95/0x190
[  287.622077]  __alloc_pages_nodemask+0xa80/0xde0
[  287.626752]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  287.631787]  ? __page_cache_alloc+0x191/0x5c0
[  287.636281]  ? xa_load+0x2e1/0x460
[  287.639824]  ? xa_clear_mark+0x40/0x40
[  287.643713]  ? zap_class+0x640/0x640
[  287.647433]  ? zap_class+0x640/0x640
[  287.651145]  ? zap_class+0x640/0x640
[  287.654863]  ? __do_page_cache_readahead+0x663/0x810
[  287.659987]  ? find_held_lock+0x36/0x1c0
[  287.664062]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  287.669609]  alloc_pages_current+0x173/0x350
[  287.674031]  __page_cache_alloc+0x38c/0x5c0
[  287.678351]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  287.683279]  ? kasan_check_read+0x11/0x20
[  287.687426]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.692705]  ? generic_perform_write+0x6a0/0x6a0
[  287.697462]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.703014]  ? check_preemption_disabled+0x48/0x280
[  287.708418]  filemap_fault+0x1595/0x25f0
[  287.712490]  ? __lock_page_or_retry+0xa00/0xa00
[  287.717157]  ? mark_held_locks+0x130/0x130
[  287.721402]  ? filemap_map_pages+0xd6b/0x1a20
[  287.725900]  ? lock_downgrade+0x900/0x900
[  287.730103]  ? check_preemption_disabled+0x48/0x280
[  287.735132]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  287.740060]  ? kasan_check_read+0x11/0x20
[  287.744204]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.749479]  ? rcu_softirq_qs+0x20/0x20
[  287.753465]  ? filemap_map_pages+0xd92/0x1a20
[  287.757970]  ? find_get_entries_tag+0x1400/0x1400
[  287.762812]  ? find_held_lock+0x36/0x1c0
[  287.766907]  ? lock_acquire+0x1ed/0x520
[  287.770889]  ? ext4_filemap_fault+0x7a/0xad
[  287.775237]  ? lock_release+0xa00/0xa00
[  287.779235]  ? perf_trace_sched_process_exec+0x860/0x860
[  287.784687]  ? print_usage_bug+0xc0/0xc0
[  287.788769]  ? print_usage_bug+0xc0/0xc0
[  287.792855]  ? down_read+0x8d/0x120
[  287.796494]  ? ext4_filemap_fault+0x7a/0xad
[  287.800826]  ? __down_interruptible+0x700/0x700
[  287.805507]  ext4_filemap_fault+0x82/0xad
[  287.809672]  __do_fault+0x100/0x6b0
[  287.813298]  ? find_held_lock+0x36/0x1c0
[  287.817373]  ? pmd_devmap_trans_unstable+0x220/0x220
[  287.822572]  ? mark_held_locks+0x130/0x130
[  287.826806]  ? mark_held_locks+0x130/0x130
[  287.831053]  ? kasan_check_read+0x11/0x20
[  287.835211]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.840770]  __handle_mm_fault+0x3ea0/0x5be0
[  287.845192]  ? perf_trace_lock+0x7a0/0x7a0
[  287.849434]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  287.854286]  ? __switch_to_asm+0x34/0x70
[  287.858350]  ? __switch_to_asm+0x34/0x70
[  287.862425]  ? zap_class+0x640/0x640
[  287.866139]  ? zap_class+0x640/0x640
[  287.869853]  ? __x64_sys_futex+0x53e/0x6a0
[  287.874100]  ? find_held_lock+0x36/0x1c0
[  287.878185]  ? handle_mm_fault+0x42a/0xc70
[  287.882618]  ? lock_downgrade+0x900/0x900
[  287.886773]  ? check_preemption_disabled+0x48/0x280
[  287.891795]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  287.896724]  ? kasan_check_read+0x11/0x20
[  287.900870]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.906149]  ? rcu_softirq_qs+0x20/0x20
[  287.910121]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.915227]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.920767]  ? check_preemption_disabled+0x48/0x280
[  287.925792]  handle_mm_fault+0x54f/0xc70
[  287.929878]  ? __handle_mm_fault+0x5be0/0x5be0
[  287.934465]  ? find_vma+0x34/0x190
[  287.938013]  __do_page_fault+0x5e8/0xe60
[  287.942089]  ? trace_hardirqs_off+0xb8/0x310
[  287.946508]  do_page_fault+0xf2/0x7e0
[  287.950313]  ? vmalloc_sync_all+0x30/0x30
[  287.954464]  ? error_entry+0x70/0xd0
[  287.958179]  ? trace_hardirqs_off_caller+0xbb/0x310
[  287.963195]  ? trace_hardirqs_on_caller+0xc0/0x310
[  287.968128]  ? syscall_return_slowpath+0x5e0/0x5e0
[  287.973060]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.977928]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.982961]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  287.988417]  ? prepare_exit_to_usermode+0x291/0x3b0
[  287.993438]  ? page_fault+0x8/0x30
[  287.996983]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.001830]  ? page_fault+0x8/0x30
[  288.005375]  page_fault+0x1e/0x30
[  288.008828] RIP: 0033:0x44b69a
[  288.012073] Code: Bad RIP value.
[  288.015438] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  288.020802] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  288.028071] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  288.035337] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  288.042607] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  288.049873] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  288.057172] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  288.057178] warn_alloc_show_mem: 1 callbacks suppressed
[  288.057185] Mem-Info:
[  288.064392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  288.069768] active_anon:47227 inactive_anon:190 isolated_anon:0
[  288.069768]  active_file:11 inactive_file:14 isolated_file:0
[  288.069768]  unevictable:0 dirty:0 writeback:0 unstable:0
[  288.069768]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  288.069768]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  288.069768]  free:13756 free_pcp:235 free_cma:0
[  288.072151] Call Trace:
[  288.081541] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  288.114395]  <IRQ>
[  288.116971] 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
[  288.144497]  dump_stack+0x244/0x39d
[  288.146622] lowmem_reserve[]: 0 2818 6321 6321
[  288.172787]  ? dump_stack_print_info.cold.1+0x20/0x20
[  288.176388] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  288.180979]  warn_alloc.cold.116+0xb7/0x1bd
[  288.186131] lowmem_reserve[]: 0 0 3503 3503
[  288.213474]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  288.217769] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  288.222088]  ? lock_downgrade+0x900/0x900
[  288.226901] lowmem_reserve[]: 0 0 0 0
[  288.255833]  ? trace_hardirqs_off+0xb8/0x310
[  288.259960] 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
[  288.263778]  ? trace_hardirqs_off+0xb8/0x310
[  288.268156] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  288.281682]  __alloc_pages_slowpath+0x26e8/0x2e10
[  288.286060] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  288.301349]  ? warn_alloc+0x120/0x120
[  288.306157] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  288.321245]  ? print_usage_bug+0xc0/0xc0
[  288.325030] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  288.333856]  ? warn_alloc+0x120/0x120
[  288.337893] 269 total pagecache pages
[  288.346477]  ? warn_alloc+0x120/0x120
[  288.350258] 0 pages in swap cache
[  288.354049]  ? print_usage_bug+0xc0/0xc0
[  288.357825] Swap cache stats: add 0, delete 0, find 0/0
[  288.361275]  ? kvm_clock_read+0x18/0x30
[  288.365308] Free swap  = 0kB
[  288.370671]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  288.374615] Total swap = 0kB
[  288.377631]  ? print_usage_bug+0xc0/0xc0
[  288.382617] 1965979 pages RAM
[  288.385627]  ? __lock_acquire+0x62f/0x4c20
[  288.389674] 0 pages HighMem/MovableOnly
[  288.392786]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.396991] 342853 pages reserved
[  288.400968]  ? should_fail+0x22d/0xd01
[  288.406470] 0 pages cma reserved
[  288.406559] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  288.409940]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.409959]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  288.413941] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  288.417189]  ? __lock_acquire+0x62f/0x4c20
[  288.423653] syz-fuzzer cpuset=/ mems_allowed=0
[  288.428934]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  288.458101]  ? __lock_acquire+0x62f/0x4c20
[  288.462339]  ? should_fail+0x22d/0xd01
[  288.466225]  ? rcu_irq_exit+0x1a2/0x390
[  288.470216]  ? mark_held_locks+0x130/0x130
[  288.474458]  ? mark_held_locks+0x130/0x130
[  288.478699]  ? mark_held_locks+0xc7/0x130
[  288.482852]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  288.487872]  ? zap_class+0x640/0x640
[  288.491587]  ? print_usage_bug+0xc0/0xc0
[  288.495658]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.501201]  ? check_preemption_disabled+0x48/0x280
[  288.506232]  ? __lock_is_held+0xb5/0x140
[  288.510305]  __alloc_pages_nodemask+0xa80/0xde0
[  288.514974]  ? zap_class+0x640/0x640
[  288.518696]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  288.523724]  ? find_held_lock+0x36/0x1c0
[  288.527800]  ? ____cache_alloc_node+0x1c7/0x1e0
[  288.532473]  ? lock_downgrade+0x900/0x900
[  288.536634]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.542180]  cache_grow_begin+0xa5/0x8c0
[  288.546243]  ? do_raw_spin_unlock+0xa7/0x330
[  288.550665]  fallback_alloc+0x204/0x2e0
[  288.554646]  ____cache_alloc_node+0x1c7/0x1e0
[  288.559150]  kmem_cache_alloc_node+0xe3/0x730
[  288.563651]  ? ipv6_get_ifaddr+0x42e/0x620
[  288.567902]  __alloc_skb+0x119/0x770
[  288.571651]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.577200]  ? netdev_alloc_frag+0x1f0/0x1f0
[  288.581612]  ? lock_downgrade+0x900/0x900
[  288.585770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.591321]  ? refcount_sub_and_test_checked+0x203/0x310
[  288.596785]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  288.602247]  ? addrconf_rs_timer+0x690/0x690
[  288.606680]  ndisc_alloc_skb+0x144/0x340
[  288.610752]  ndisc_send_rs+0x331/0x6e0
[  288.614650]  addrconf_rs_timer+0x314/0x690
[  288.618896]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.623152]  call_timer_fn+0x272/0x920
[  288.627041]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.631277]  ? process_timeout+0x40/0x40
[  288.635347]  ? __run_timers+0x7da/0xc70
[  288.639327]  ? _raw_spin_unlock_irq+0x27/0x80
[  288.643820]  ? _raw_spin_unlock_irq+0x27/0x80
[  288.648318]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.652560]  ? lockdep_hardirqs_on+0x296/0x5b0
[  288.657152]  ? trace_hardirqs_on+0xbd/0x310
[  288.661478]  ? kasan_check_read+0x11/0x20
[  288.665624]  ? __run_timers+0x7da/0xc70
[  288.669603]  ? trace_hardirqs_off_caller+0x310/0x310
[  288.674718]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.678983]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.683224]  __run_timers+0x7e5/0xc70
[  288.687061]  ? timer_fixup_init+0x70/0x70
[  288.691219]  ? lock_acquire+0x1ed/0x520
[  288.695198]  ? zap_class+0x640/0x640
[  288.698924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.704475]  ? kasan_check_read+0x11/0x20
[  288.708622]  ? do_raw_spin_lock+0x14f/0x350
[  288.712964]  ? find_held_lock+0x36/0x1c0
[  288.717039]  ? zap_class+0x640/0x640
[  288.720760]  ? pvclock_read_flags+0x160/0x160
[  288.725266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.730809]  ? check_preemption_disabled+0x48/0x280
[  288.735842]  ? __lock_is_held+0xb5/0x140
[  288.739907]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.745460]  ? check_preemption_disabled+0x48/0x280
[  288.750625]  run_timer_softirq+0x52/0xb0
[  288.754699]  ? rcu_read_lock_sched_held+0x14f/0x180
[  288.759732]  __do_softirq+0x308/0xb7e
[  288.763545]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  288.768051]  ? lock_downgrade+0x900/0x900
[  288.772204]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  288.777320]  ? pvclock_read_flags+0x160/0x160
[  288.781821]  ? lapic_next_event+0x5a/0x90
[  288.785976]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.791527]  ? kvm_clock_read+0x18/0x30
[  288.795524]  ? kvm_sched_clock_read+0x9/0x20
[  288.799943]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.805490]  ? check_preemption_disabled+0x48/0x280
[  288.810530]  irq_exit+0x17f/0x1c0
[  288.813989]  smp_apic_timer_interrupt+0x1cb/0x760
[  288.818832]  ? smp_call_function_single_interrupt+0x159/0x650
[  288.824725]  ? smp_call_function_single_interrupt+0x650/0x650
[  288.830611]  ? interrupt_entry+0xb5/0xc0
[  288.834703]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.839721]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.844744]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.849589]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.854604]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.859635]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.864488]  apic_timer_interrupt+0xf/0x20
[  288.868725]  </IRQ>
[  288.870968] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  288.875904] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  288.894824] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  288.902538] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  288.909813] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  288.917084] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  288.924353] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  288.931621] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  288.938949]  skb_clone+0x1bb/0x500
[  288.942500]  ? skb_split+0x11e0/0x11e0
[  288.946395]  ? check_preemption_disabled+0x48/0x280
[  288.951420]  ? __this_cpu_preempt_check+0x1c/0x20
[  288.956263]  ? __bpf_redirect+0x54b/0xb20
[  288.960420]  bpf_clone_redirect+0xb9/0x490
[  288.964665]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  288.969690]  ? __sched_text_start+0x8/0x8
[  288.973852]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  288.978656]  ? find_held_lock+0x36/0x1c0
[  288.982759]  ? lock_acquire+0x1ed/0x520
[  288.986752]  ? bpf_test_run+0x3cb/0x780
[  288.990734]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.996282]  ? check_preemption_disabled+0x48/0x280
[  289.001309]  ? kasan_check_read+0x11/0x20
[  289.005458]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.010735]  ? rcu_softirq_qs+0x20/0x20
[  289.014713]  ? preempt_schedule+0x4d/0x60
[  289.018880]  ? ___preempt_schedule+0x16/0x18
[  289.023299]  ? bpf_test_run+0x25d/0x780
[  289.027285]  ? netlink_diag_dump+0x2a0/0x2a0
[  289.031698]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  289.036471]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  289.041237]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  289.046082]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  289.051620]  ? fput+0x130/0x1a0
[  289.054903]  ? __bpf_prog_get+0x9b/0x290
[  289.058983]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  289.063826]  ? bpf_prog_test_run+0x130/0x1a0
[  289.068243]  ? __x64_sys_bpf+0x3d8/0x520
[  289.072316]  ? bpf_prog_get+0x20/0x20
[  289.076145]  ? do_syscall_64+0x1b9/0x820
[  289.080206]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  289.085573]  ? syscall_return_slowpath+0x5e0/0x5e0
[  289.090501]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.095352]  ? trace_hardirqs_on_caller+0x310/0x310
[  289.100370]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  289.105394]  ? prepare_exit_to_usermode+0x291/0x3b0
[  289.110417]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.115271]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  289.120657] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  289.120751] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  289.127596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  289.127601] Call Trace:
[  289.127609]  <IRQ>
[  289.127628]  dump_stack+0x244/0x39d
[  289.127646]  ? dump_stack_print_info.cold.1+0x20/0x20
[  289.127673]  warn_alloc.cold.116+0xb7/0x1bd
[  289.134241] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  289.143515]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  289.146078] syz-executor4 cpuset=syz4 mems_allowed=0
[  289.148239]  ? lock_downgrade+0x900/0x900
[  289.185891]  ? trace_hardirqs_off+0xb8/0x310
[  289.190321]  ? trace_hardirqs_off+0xb8/0x310
[  289.194749]  __alloc_pages_slowpath+0x26e8/0x2e10
[  289.199629]  ? warn_alloc+0x120/0x120
[  289.203435]  ? print_usage_bug+0xc0/0xc0
[  289.207498]  ? warn_alloc+0x120/0x120
[  289.211309]  ? warn_alloc+0x120/0x120
[  289.215117]  ? print_usage_bug+0xc0/0xc0
[  289.219179]  ? kvm_clock_read+0x18/0x30
[  289.223161]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  289.228179]  ? print_usage_bug+0xc0/0xc0
[  289.232250]  ? __lock_acquire+0x62f/0x4c20
[  289.236493]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.242043]  ? should_fail+0x22d/0xd01
[  289.245935]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.251232]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.256348]  ? __lock_acquire+0x62f/0x4c20
[  289.260593]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.265696]  ? __lock_acquire+0x62f/0x4c20
[  289.269959]  ? should_fail+0x22d/0xd01
[  289.273848]  ? rcu_irq_exit+0x1a2/0x390
[  289.277832]  ? mark_held_locks+0x130/0x130
[  289.282076]  ? mark_held_locks+0x130/0x130
[  289.286321]  ? mark_held_locks+0xc7/0x130
[  289.290472]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  289.295487]  ? zap_class+0x640/0x640
[  289.299203]  ? print_usage_bug+0xc0/0xc0
[  289.303269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.308851]  ? check_preemption_disabled+0x48/0x280
[  289.313880]  ? __lock_is_held+0xb5/0x140
[  289.317959]  __alloc_pages_nodemask+0xa80/0xde0
[  289.322631]  ? zap_class+0x640/0x640
[  289.326351]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  289.331380]  ? find_held_lock+0x36/0x1c0
[  289.335452]  ? ____cache_alloc_node+0x1c7/0x1e0
[  289.340122]  ? lock_downgrade+0x900/0x900
[  289.344278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.349826]  cache_grow_begin+0xa5/0x8c0
[  289.353890]  ? do_raw_spin_unlock+0xa7/0x330
[  289.358314]  fallback_alloc+0x204/0x2e0
[  289.362300]  ____cache_alloc_node+0x1c7/0x1e0
[  289.366804]  kmem_cache_alloc_node+0xe3/0x730
[  289.371303]  ? ipv6_get_ifaddr+0x42e/0x620
[  289.375550]  __alloc_skb+0x119/0x770
[  289.379266]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.384549]  ? netdev_alloc_frag+0x1f0/0x1f0
[  289.388966]  ? lock_downgrade+0x900/0x900
[  289.393126]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.398670]  ? refcount_sub_and_test_checked+0x203/0x310
[  289.404126]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  289.409588]  ? addrconf_rs_timer+0x690/0x690
[  289.414007]  ndisc_alloc_skb+0x144/0x340
[  289.418087]  ndisc_send_rs+0x331/0x6e0
[  289.421982]  addrconf_rs_timer+0x314/0x690
[  289.426223]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.430473]  call_timer_fn+0x272/0x920
[  289.434363]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.438597]  ? process_timeout+0x40/0x40
[  289.442668]  ? mark_held_locks+0xc7/0x130
[  289.446830]  ? _raw_spin_unlock_irq+0x27/0x80
[  289.451342]  ? _raw_spin_unlock_irq+0x27/0x80
[  289.455839]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.460075]  ? lockdep_hardirqs_on+0x296/0x5b0
[  289.464659]  ? trace_hardirqs_on+0xbd/0x310
[  289.468982]  ? kasan_check_read+0x11/0x20
[  289.473132]  ? __run_timers+0x7da/0xc70
[  289.477112]  ? trace_hardirqs_off_caller+0x310/0x310
[  289.482222]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.486465]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.490700]  __run_timers+0x7e5/0xc70
[  289.494524]  ? timer_fixup_init+0x70/0x70
[  289.498689]  ? kasan_check_read+0x11/0x20
[  289.502860]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.508171]  ? rcu_softirq_qs+0x20/0x20
[  289.512150]  ? mark_held_locks+0xc7/0x130
[  289.516308]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  289.521069]  ? retint_kernel+0x2d/0x2d
[  289.524959]  ? trace_hardirqs_on_caller+0xc0/0x310
[  289.530000]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  289.534774]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  289.540224]  ? zap_class+0x640/0x640
[  289.543955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.549498]  ? check_preemption_disabled+0x48/0x280
[  289.554524]  ? __lock_is_held+0xb5/0x140
[  289.558587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.564130]  ? check_preemption_disabled+0x48/0x280
[  289.569156]  run_timer_softirq+0x52/0xb0
[  289.573221]  ? rcu_read_lock_sched_held+0x14f/0x180
[  289.578240]  __do_softirq+0x308/0xb7e
[  289.582053]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  289.586548]  ? lock_downgrade+0x900/0x900
[  289.590725]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  289.595839]  ? pvclock_read_flags+0x160/0x160
[  289.600338]  ? lapic_next_event+0x5a/0x90
[  289.604494]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.610046]  ? kvm_clock_read+0x18/0x30
[  289.614028]  ? kvm_sched_clock_read+0x9/0x20
[  289.618446]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.623986]  ? check_preemption_disabled+0x48/0x280
[  289.629023]  irq_exit+0x17f/0x1c0
[  289.632491]  smp_apic_timer_interrupt+0x1cb/0x760
[  289.637354]  ? smp_call_function_single_interrupt+0x650/0x650
[  289.643251]  ? interrupt_entry+0xb5/0xc0
[  289.647350]  ? trace_hardirqs_off_caller+0xbb/0x310
[  289.652367]  ? trace_hardirqs_off_caller+0xbb/0x310
[  289.657402]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.662250]  ? trace_hardirqs_on_caller+0x310/0x310
[  289.667266]  ? trace_hardirqs_on_caller+0x310/0x310
[  289.672283]  ? task_prio+0x50/0x50
[  289.675829]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.681372]  ? check_preemption_disabled+0x48/0x280
[  289.686397]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.691250]  apic_timer_interrupt+0xf/0x20
[  289.695477]  </IRQ>
[  289.697715] RIP: 0010:dump_stack+0x358/0x39d
[  289.702127] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  289.721037] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  289.728747] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  289.736014] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  289.743286] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  289.750554] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  289.757822] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  289.765119]  ? dump_stack+0x34f/0x39d
[  289.768947]  ? dump_stack_print_info.cold.1+0x20/0x20
[  289.774147]  ? mark_held_locks+0x130/0x130
[  289.778384]  ? mark_held_locks+0x130/0x130
[  289.782627]  dump_header+0x27b/0xf72
[  289.786358]  ? pagefault_out_of_memory+0x197/0x197
[  289.791299]  ? __lock_acquire+0x62f/0x4c20
[  289.795572]  ? percpu_ref_get_many+0x240/0x240
[  289.800170]  ? print_usage_bug+0xc0/0xc0
[  289.804238]  ? zap_class+0x640/0x640
[  289.807958]  ? print_usage_bug+0xc0/0xc0
[  289.812017]  ? print_usage_bug+0xc0/0xc0
[  289.816086]  ? zap_class+0x640/0x640
[  289.819805]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.825346]  ? find_held_lock+0x36/0x1c0
[  289.829417]  ? mark_held_locks+0xc7/0x130
[  289.833567]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  289.838671]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  289.843789]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  289.848378]  ? trace_hardirqs_on+0xbd/0x310
[  289.852719]  ? kasan_check_read+0x11/0x20
[  289.856867]  ? ___ratelimit+0x3b4/0x672
[  289.860842]  ? trace_hardirqs_off_caller+0x310/0x310
[  289.865956]  ? trace_hardirqs_on+0x310/0x310
[  289.870368]  ? lock_downgrade+0x900/0x900
[  289.874520]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  289.879629]  ? ___ratelimit+0x3b9/0x672
[  289.883622]  ? idr_get_free+0xf70/0xf70
[  289.887597]  ? find_held_lock+0x36/0x1c0
[  289.891668]  oom_kill_process.cold.27+0x10/0x903
[  289.896423]  ? zap_class+0x640/0x640
[  289.900143]  ? check_preemption_disabled+0x48/0x280
[  289.905163]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.910095]  ? kasan_check_read+0x11/0x20
[  289.914241]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.919521]  ? oom_evaluate_task+0x540/0x540
[  289.923945]  ? find_held_lock+0x36/0x1c0
[  289.928016]  ? out_of_memory+0x974/0x1430
[  289.932174]  ? lock_downgrade+0x900/0x900
[  289.936322]  ? check_preemption_disabled+0x48/0x280
[  289.941341]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  289.946269]  ? kasan_check_read+0x11/0x20
[  289.950417]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.955696]  ? rcu_softirq_qs+0x20/0x20
[  289.959678]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.965216]  ? oom_evaluate_task+0x302/0x540
[  289.969630]  out_of_memory+0xa84/0x1430
[  289.973613]  ? oom_killer_disable+0x3a0/0x3a0
[  289.978112]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  289.983050]  ? __ww_mutex_check_waiters+0x160/0x160
[  289.988081]  __alloc_pages_slowpath+0x2354/0x2e10
[  289.992963]  ? warn_alloc+0x120/0x120
[  289.996770]  ? mark_held_locks+0x130/0x130
[  290.001012]  ? find_get_entry+0xaae/0x1120
[  290.005263]  ? filemap_map_pages+0x1a20/0x1a20
[  290.009852]  ? zap_class+0x640/0x640
[  290.013572]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.019117]  ? check_preemption_disabled+0x48/0x280
[  290.024138]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.029679]  ? should_fail+0x22d/0xd01
[  290.033584]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.038691]  ? zap_class+0x640/0x640
[  290.042429]  ? __lock_is_held+0xb5/0x140
[  290.046499]  ? mark_held_locks+0x130/0x130
[  290.050739]  ? lock_release+0xa00/0xa00
[  290.054717]  ? perf_trace_sched_process_exec+0x860/0x860
[  290.060169]  ? xa_load+0x2ba/0x460
[  290.063713]  ? lock_downgrade+0x900/0x900
[  290.067869]  ? __might_sleep+0x95/0x190
[  290.071850]  __alloc_pages_nodemask+0xa80/0xde0
[  290.076529]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  290.081553]  ? __page_cache_alloc+0x191/0x5c0
[  290.086053]  ? xa_load+0x2e1/0x460
[  290.089594]  ? xa_clear_mark+0x40/0x40
[  290.093483]  ? zap_class+0x640/0x640
[  290.097208]  ? zap_class+0x640/0x640
[  290.100928]  ? zap_class+0x640/0x640
[  290.104648]  ? __do_page_cache_readahead+0x663/0x810
[  290.109754]  ? find_held_lock+0x36/0x1c0
[  290.113822]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  290.119393]  alloc_pages_current+0x173/0x350
[  290.123826]  __page_cache_alloc+0x38c/0x5c0
[  290.128149]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  290.133078]  ? kasan_check_read+0x11/0x20
[  290.137229]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.142535]  ? generic_perform_write+0x6a0/0x6a0
[  290.147290]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.152829]  ? check_preemption_disabled+0x48/0x280
[  290.157854]  filemap_fault+0x1595/0x25f0
[  290.161934]  ? __lock_page_or_retry+0xa00/0xa00
[  290.166608]  ? mark_held_locks+0x130/0x130
[  290.170852]  ? filemap_map_pages+0xd6b/0x1a20
[  290.175349]  ? lock_downgrade+0x900/0x900
[  290.179536]  ? check_preemption_disabled+0x48/0x280
[  290.184557]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  290.189489]  ? kasan_check_read+0x11/0x20
[  290.193634]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.198909]  ? rcu_softirq_qs+0x20/0x20
[  290.202908]  ? filemap_map_pages+0xd92/0x1a20
[  290.207430]  ? find_get_entries_tag+0x1400/0x1400
[  290.212270]  ? find_held_lock+0x36/0x1c0
[  290.216353]  ? lock_acquire+0x1ed/0x520
[  290.220327]  ? ext4_filemap_fault+0x7a/0xad
[  290.224664]  ? lock_release+0xa00/0xa00
[  290.228653]  ? perf_trace_sched_process_exec+0x860/0x860
[  290.234107]  ? print_usage_bug+0xc0/0xc0
[  290.238172]  ? print_usage_bug+0xc0/0xc0
[  290.242250]  ? down_read+0x8d/0x120
[  290.245877]  ? ext4_filemap_fault+0x7a/0xad
[  290.250212]  ? __down_interruptible+0x700/0x700
[  290.254889]  ext4_filemap_fault+0x82/0xad
[  290.259063]  __do_fault+0x100/0x6b0
[  290.262692]  ? find_held_lock+0x36/0x1c0
[  290.266760]  ? pmd_devmap_trans_unstable+0x220/0x220
[  290.271866]  ? mark_held_locks+0x130/0x130
[  290.276104]  ? mark_held_locks+0x130/0x130
[  290.280351]  ? kasan_check_read+0x11/0x20
[  290.284501]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.290052]  __handle_mm_fault+0x3ea0/0x5be0
[  290.294459]  ? perf_trace_lock+0x7a0/0x7a0
[  290.298703]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  290.303557]  ? __switch_to_asm+0x34/0x70
[  290.307616]  ? __switch_to_asm+0x34/0x70
[  290.311689]  ? zap_class+0x640/0x640
[  290.315401]  ? zap_class+0x640/0x640
[  290.319115]  ? __x64_sys_futex+0x53e/0x6a0
[  290.323355]  ? find_held_lock+0x36/0x1c0
[  290.327429]  ? handle_mm_fault+0x42a/0xc70
[  290.331665]  ? lock_downgrade+0x900/0x900
[  290.335820]  ? check_preemption_disabled+0x48/0x280
[  290.340838]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  290.345768]  ? kasan_check_read+0x11/0x20
[  290.349913]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.355206]  ? rcu_softirq_qs+0x20/0x20
[  290.359184]  ? trace_hardirqs_off_caller+0x310/0x310
[  290.364289]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.369833]  ? check_preemption_disabled+0x48/0x280
[  290.374863]  handle_mm_fault+0x54f/0xc70
[  290.378961]  ? __handle_mm_fault+0x5be0/0x5be0
[  290.383548]  ? find_vma+0x34/0x190
[  290.387097]  __do_page_fault+0x5e8/0xe60
[  290.391158]  ? trace_hardirqs_off+0xb8/0x310
[  290.395576]  do_page_fault+0xf2/0x7e0
[  290.399407]  ? vmalloc_sync_all+0x30/0x30
[  290.403555]  ? error_entry+0x70/0xd0
[  290.407271]  ? trace_hardirqs_off_caller+0xbb/0x310
[  290.412285]  ? trace_hardirqs_on_caller+0xc0/0x310
[  290.417217]  ? syscall_return_slowpath+0x5e0/0x5e0
[  290.422147]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.427041]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.432057]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  290.437511]  ? prepare_exit_to_usermode+0x291/0x3b0
[  290.442528]  ? page_fault+0x8/0x30
[  290.446072]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.450953]  ? page_fault+0x8/0x30
[  290.454509]  page_fault+0x1e/0x30
[  290.457965] RIP: 0033:0x44b69a
[  290.461174] Code: Bad RIP value.
[  290.464536] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  290.469896] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  290.477174] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  290.484440] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  290.491720] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  290.498984] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  290.506304] warn_alloc_show_mem: 1 callbacks suppressed
[  290.506316] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  290.506318] Mem-Info:
[  290.506348] active_anon:47227 inactive_anon:190 isolated_anon:0
[  290.506348]  active_file:11 inactive_file:14 isolated_file:0
[  290.506348]  unevictable:0 dirty:0 writeback:0 unstable:0
[  290.506348]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  290.506348]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  290.506348]  free:13756 free_pcp:235 free_cma:0
[  290.511713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  290.518906] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  290.521302] Call Trace:
[  290.554174] 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
[  290.563542]  <IRQ>
[  290.591055] lowmem_reserve[]: 0 2818 6321 6321
[  290.593658]  dump_stack+0x244/0x39d
[  290.619739] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  290.621896]  ? dump_stack_print_info.cold.1+0x20/0x20
[  290.626441] lowmem_reserve[]: 0 0 3503 3503
[  290.630080]  warn_alloc.cold.116+0xb7/0x1bd
[  290.657417] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  290.662618]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  290.666905] lowmem_reserve[]: 0 0 0 0
[  290.671237]  ? lock_downgrade+0x900/0x900
[  290.700097] 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
[  290.704991]  ? trace_hardirqs_off+0xb8/0x310
[  290.708773] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  290.712914]  ? trace_hardirqs_off+0xb8/0x310
[  290.726433] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  290.730841]  __alloc_pages_slowpath+0x26e8/0x2e10
[  290.746538] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  290.751169]  ? warn_alloc+0x120/0x120
[  290.766221] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  290.771057]  ? print_usage_bug+0xc0/0xc0
[  290.779866] 269 total pagecache pages
[  290.783656]  ? warn_alloc+0x120/0x120
[  290.792216] 0 pages in swap cache
[  290.796259]  ? warn_alloc+0x120/0x120
[  290.800057] Swap cache stats: add 0, delete 0, find 0/0
[  290.803869]  ? print_usage_bug+0xc0/0xc0
[  290.807296] Free swap  = 0kB
[  290.811122]  ? kvm_clock_read+0x18/0x30
[  290.816475] Total swap = 0kB
[  290.820536]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  290.823531] 1965979 pages RAM
[  290.827514]  ? print_usage_bug+0xc0/0xc0
[  290.830618] 0 pages HighMem/MovableOnly
[  290.835634]  ? __lock_acquire+0x62f/0x4c20
[  290.838719] 342853 pages reserved
[  290.842777]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.846725] 0 pages cma reserved
[  290.850957]  ? should_fail+0x22d/0xd01
[  290.854487] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  290.859927]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.859953]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.863414] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  290.867192]  ? __lock_acquire+0x62f/0x4c20
[  290.873676] syz-fuzzer cpuset=/ mems_allowed=0
[  290.878954]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.908124]  ? __lock_acquire+0x62f/0x4c20
[  290.912360]  ? should_fail+0x22d/0xd01
[  290.916246]  ? rcu_irq_exit+0x1a2/0x390
[  290.920234]  ? mark_held_locks+0x130/0x130
[  290.924475]  ? mark_held_locks+0x130/0x130
[  290.928718]  ? mark_held_locks+0xc7/0x130
[  290.932871]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  290.937899]  ? zap_class+0x640/0x640
[  290.941636]  ? print_usage_bug+0xc0/0xc0
[  290.945703]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.951244]  ? check_preemption_disabled+0x48/0x280
[  290.956272]  ? __lock_is_held+0xb5/0x140
[  290.960340]  __alloc_pages_nodemask+0xa80/0xde0
[  290.965012]  ? zap_class+0x640/0x640
[  290.968730]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  290.973785]  ? find_held_lock+0x36/0x1c0
[  290.977865]  ? ____cache_alloc_node+0x1c7/0x1e0
[  290.982539]  ? lock_downgrade+0x900/0x900
[  290.986709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.992252]  cache_grow_begin+0xa5/0x8c0
[  290.996316]  ? do_raw_spin_unlock+0xa7/0x330
[  291.000746]  fallback_alloc+0x204/0x2e0
[  291.004732]  ____cache_alloc_node+0x1c7/0x1e0
[  291.009272]  kmem_cache_alloc_node+0xe3/0x730
[  291.013799]  ? ipv6_get_ifaddr+0x42e/0x620
[  291.018069]  __alloc_skb+0x119/0x770
[  291.021785]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.027067]  ? netdev_alloc_frag+0x1f0/0x1f0
[  291.031501]  ? lock_downgrade+0x900/0x900
[  291.035661]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.041201]  ? refcount_sub_and_test_checked+0x203/0x310
[  291.046655]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  291.052110]  ? addrconf_rs_timer+0x690/0x690
[  291.056543]  ndisc_alloc_skb+0x144/0x340
[  291.060610]  ndisc_send_rs+0x331/0x6e0
[  291.064538]  addrconf_rs_timer+0x314/0x690
[  291.068776]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.073023]  call_timer_fn+0x272/0x920
[  291.076913]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.081198]  ? process_timeout+0x40/0x40
[  291.085270]  ? __run_timers+0x7da/0xc70
[  291.089250]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.093761]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.098255]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.102908]  ? lockdep_hardirqs_on+0x296/0x5b0
[  291.107954]  ? trace_hardirqs_on+0xbd/0x310
[  291.112472]  ? kasan_check_read+0x11/0x20
[  291.116875]  ? __run_timers+0x7da/0xc70
[  291.121280]  ? trace_hardirqs_off_caller+0x310/0x310
[  291.127072]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.131707]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.136386]  __run_timers+0x7e5/0xc70
[  291.140658]  ? timer_fixup_init+0x70/0x70
[  291.145312]  ? lock_acquire+0x1ed/0x520
[  291.149533]  ? zap_class+0x640/0x640
[  291.153684]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.159761]  ? kasan_check_read+0x11/0x20
[  291.164407]  ? do_raw_spin_lock+0x14f/0x350
[  291.169260]  ? find_held_lock+0x36/0x1c0
[  291.173328]  ? zap_class+0x640/0x640
[  291.177049]  ? pvclock_read_flags+0x160/0x160
[  291.181552]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.187096]  ? check_preemption_disabled+0x48/0x280
[  291.192124]  ? __lock_is_held+0xb5/0x140
[  291.196191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.201730]  ? check_preemption_disabled+0x48/0x280
[  291.206754]  run_timer_softirq+0x52/0xb0
[  291.210819]  ? rcu_read_lock_sched_held+0x14f/0x180
[  291.215841]  __do_softirq+0x308/0xb7e
[  291.219658]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  291.224156]  ? lock_downgrade+0x900/0x900
[  291.228316]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  291.233427]  ? pvclock_read_flags+0x160/0x160
[  291.237934]  ? lapic_next_event+0x5a/0x90
[  291.242089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.247636]  ? kvm_clock_read+0x18/0x30
[  291.251609]  ? kvm_sched_clock_read+0x9/0x20
[  291.256022]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.261567]  ? check_preemption_disabled+0x48/0x280
[  291.266610]  irq_exit+0x17f/0x1c0
[  291.270073]  smp_apic_timer_interrupt+0x1cb/0x760
[  291.274931]  ? smp_call_function_single_interrupt+0x159/0x650
[  291.280832]  ? smp_call_function_single_interrupt+0x650/0x650
[  291.286715]  ? interrupt_entry+0xb5/0xc0
[  291.290781]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.295797]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.300826]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.305682]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.310703]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.315732]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.320585]  apic_timer_interrupt+0xf/0x20
[  291.324818]  </IRQ>
[  291.327073] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  291.332019] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  291.350931] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  291.358638] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  291.365926] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  291.373191] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  291.380454] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  291.387722] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  291.395036]  skb_clone+0x1bb/0x500
[  291.398584]  ? skb_split+0x11e0/0x11e0
[  291.402475]  ? check_preemption_disabled+0x48/0x280
[  291.407512]  ? __this_cpu_preempt_check+0x1c/0x20
[  291.412359]  ? __bpf_redirect+0x54b/0xb20
[  291.416531]  bpf_clone_redirect+0xb9/0x490
[  291.420804]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  291.425825]  ? __sched_text_start+0x8/0x8
[  291.429977]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  291.434747]  ? find_held_lock+0x36/0x1c0
[  291.438819]  ? lock_acquire+0x1ed/0x520
[  291.442800]  ? bpf_test_run+0x3cb/0x780
[  291.446806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.452350]  ? check_preemption_disabled+0x48/0x280
[  291.457378]  ? kasan_check_read+0x11/0x20
[  291.461534]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.466809]  ? rcu_softirq_qs+0x20/0x20
[  291.470791]  ? preempt_schedule+0x4d/0x60
[  291.474957]  ? ___preempt_schedule+0x16/0x18
[  291.479372]  ? bpf_test_run+0x25d/0x780
[  291.483375]  ? netlink_diag_dump+0x2a0/0x2a0
[  291.487786]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  291.492550]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  291.497315]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  291.502161]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  291.507702]  ? fput+0x130/0x1a0
[  291.510981]  ? __bpf_prog_get+0x9b/0x290
[  291.515049]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  291.519892]  ? bpf_prog_test_run+0x130/0x1a0
[  291.524309]  ? __x64_sys_bpf+0x3d8/0x520
[  291.528370]  ? bpf_prog_get+0x20/0x20
[  291.532196]  ? do_syscall_64+0x1b9/0x820
[  291.536263]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  291.541798]  ? syscall_return_slowpath+0x5e0/0x5e0
[  291.546730]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.551578]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.556625]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  291.561647]  ? prepare_exit_to_usermode+0x291/0x3b0
[  291.566675]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.571533]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  291.576944] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  291.577052] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  291.583876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  291.583882] Call Trace:
[  291.583890]  <IRQ>
[  291.583908]  dump_stack+0x244/0x39d
[  291.583935]  ? dump_stack_print_info.cold.1+0x20/0x20
[  291.583963]  warn_alloc.cold.116+0xb7/0x1bd
[  291.590503] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  291.599787]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  291.602346] syz-executor4 cpuset=syz4 mems_allowed=0
[  291.604494]  ? lock_downgrade+0x900/0x900
[  291.642128]  ? trace_hardirqs_off+0xb8/0x310
[  291.646555]  ? trace_hardirqs_off+0xb8/0x310
[  291.650974]  __alloc_pages_slowpath+0x26e8/0x2e10
[  291.655847]  ? warn_alloc+0x120/0x120
[  291.659686]  ? print_usage_bug+0xc0/0xc0
[  291.663754]  ? warn_alloc+0x120/0x120
[  291.667558]  ? warn_alloc+0x120/0x120
[  291.671362]  ? print_usage_bug+0xc0/0xc0
[  291.675428]  ? kvm_clock_read+0x18/0x30
[  291.679406]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  291.684426]  ? print_usage_bug+0xc0/0xc0
[  291.688489]  ? __lock_acquire+0x62f/0x4c20
[  291.692734]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.698275]  ? should_fail+0x22d/0xd01
[  291.702161]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.707440]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  291.712545]  ? __lock_acquire+0x62f/0x4c20
[  291.716784]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  291.721893]  ? __lock_acquire+0x62f/0x4c20
[  291.726133]  ? should_fail+0x22d/0xd01
[  291.730042]  ? rcu_irq_exit+0x1a2/0x390
[  291.734053]  ? mark_held_locks+0x130/0x130
[  291.738307]  ? mark_held_locks+0x130/0x130
[  291.742553]  ? mark_held_locks+0xc7/0x130
[  291.746702]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  291.751718]  ? zap_class+0x640/0x640
[  291.755431]  ? print_usage_bug+0xc0/0xc0
[  291.759500]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.765049]  ? check_preemption_disabled+0x48/0x280
[  291.770103]  ? __lock_is_held+0xb5/0x140
[  291.774172]  __alloc_pages_nodemask+0xa80/0xde0
[  291.778840]  ? zap_class+0x640/0x640
[  291.782573]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  291.787604]  ? find_held_lock+0x36/0x1c0
[  291.791676]  ? ____cache_alloc_node+0x1c7/0x1e0
[  291.796347]  ? lock_downgrade+0x900/0x900
[  291.800509]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.806061]  cache_grow_begin+0xa5/0x8c0
[  291.810126]  ? do_raw_spin_unlock+0xa7/0x330
[  291.814546]  fallback_alloc+0x204/0x2e0
[  291.818532]  ____cache_alloc_node+0x1c7/0x1e0
[  291.823037]  kmem_cache_alloc_node+0xe3/0x730
[  291.827536]  ? ipv6_get_ifaddr+0x42e/0x620
[  291.831784]  __alloc_skb+0x119/0x770
[  291.835514]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.840794]  ? netdev_alloc_frag+0x1f0/0x1f0
[  291.845203]  ? lock_downgrade+0x900/0x900
[  291.849362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.854929]  ? refcount_sub_and_test_checked+0x203/0x310
[  291.860396]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  291.865851]  ? addrconf_rs_timer+0x690/0x690
[  291.870274]  ndisc_alloc_skb+0x144/0x340
[  291.874340]  ndisc_send_rs+0x331/0x6e0
[  291.878234]  addrconf_rs_timer+0x314/0x690
[  291.882584]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.886849]  call_timer_fn+0x272/0x920
[  291.890743]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.894976]  ? process_timeout+0x40/0x40
[  291.899053]  ? mark_held_locks+0xc7/0x130
[  291.903208]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.907716]  ? _raw_spin_unlock_irq+0x27/0x80
[  291.912209]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.916446]  ? lockdep_hardirqs_on+0x296/0x5b0
[  291.921036]  ? trace_hardirqs_on+0xbd/0x310
[  291.925374]  ? kasan_check_read+0x11/0x20
[  291.929520]  ? __run_timers+0x7da/0xc70
[  291.933498]  ? trace_hardirqs_off_caller+0x310/0x310
[  291.938606]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.942846]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  291.947083]  __run_timers+0x7e5/0xc70
[  291.950898]  ? timer_fixup_init+0x70/0x70
[  291.955064]  ? kasan_check_read+0x11/0x20
[  291.959226]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.964506]  ? rcu_softirq_qs+0x20/0x20
[  291.968489]  ? mark_held_locks+0xc7/0x130
[  291.972646]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  291.977424]  ? retint_kernel+0x2d/0x2d
[  291.981316]  ? trace_hardirqs_on_caller+0xc0/0x310
[  291.986247]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  291.991013]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  291.996915]  ? zap_class+0x640/0x640
[  292.000647]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.006448]  ? check_preemption_disabled+0x48/0x280
[  292.011478]  ? __lock_is_held+0xb5/0x140
[  292.015549]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.021093]  ? check_preemption_disabled+0x48/0x280
[  292.026139]  run_timer_softirq+0x52/0xb0
[  292.030208]  ? rcu_read_lock_sched_held+0x14f/0x180
[  292.035228]  __do_softirq+0x308/0xb7e
[  292.039038]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  292.043535]  ? lock_downgrade+0x900/0x900
[  292.047686]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  292.052799]  ? pvclock_read_flags+0x160/0x160
[  292.057298]  ? lapic_next_event+0x5a/0x90
[  292.061453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.066998]  ? kvm_clock_read+0x18/0x30
[  292.070980]  ? kvm_sched_clock_read+0x9/0x20
[  292.075390]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.080936]  ? check_preemption_disabled+0x48/0x280
[  292.085970]  irq_exit+0x17f/0x1c0
[  292.089429]  smp_apic_timer_interrupt+0x1cb/0x760
[  292.094276]  ? smp_call_function_single_interrupt+0x650/0x650
[  292.100163]  ? interrupt_entry+0xb5/0xc0
[  292.104227]  ? trace_hardirqs_off_caller+0xbb/0x310
[  292.109241]  ? trace_hardirqs_off_caller+0xbb/0x310
[  292.114261]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.119108]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.124125]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.129145]  ? task_prio+0x50/0x50
[  292.132702]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.138261]  ? check_preemption_disabled+0x48/0x280
[  292.143287]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.148149]  apic_timer_interrupt+0xf/0x20
[  292.152379]  </IRQ>
[  292.154643] RIP: 0010:dump_stack+0x358/0x39d
[  292.159059] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  292.177981] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  292.185706] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  292.192979] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  292.200249] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  292.207516] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  292.214782] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  292.222077]  ? dump_stack+0x34f/0x39d
[  292.225891]  ? dump_stack_print_info.cold.1+0x20/0x20
[  292.231098]  ? mark_held_locks+0x130/0x130
[  292.235345]  ? mark_held_locks+0x130/0x130
[  292.239585]  dump_header+0x27b/0xf72
[  292.243311]  ? pagefault_out_of_memory+0x197/0x197
[  292.248250]  ? __lock_acquire+0x62f/0x4c20
[  292.252497]  ? percpu_ref_get_many+0x240/0x240
[  292.257087]  ? print_usage_bug+0xc0/0xc0
[  292.261156]  ? zap_class+0x640/0x640
[  292.264872]  ? print_usage_bug+0xc0/0xc0
[  292.268937]  ? print_usage_bug+0xc0/0xc0
[  292.273001]  ? zap_class+0x640/0x640
[  292.276723]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.282265]  ? find_held_lock+0x36/0x1c0
[  292.286334]  ? mark_held_locks+0xc7/0x130
[  292.290501]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  292.295607]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  292.300712]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  292.305473]  ? trace_hardirqs_on+0xbd/0x310
[  292.309801]  ? kasan_check_read+0x11/0x20
[  292.313956]  ? ___ratelimit+0x3b4/0x672
[  292.317940]  ? trace_hardirqs_off_caller+0x310/0x310
[  292.323060]  ? trace_hardirqs_on+0x310/0x310
[  292.327475]  ? lock_downgrade+0x900/0x900
[  292.331632]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  292.336747]  ? ___ratelimit+0x3b9/0x672
[  292.340724]  ? idr_get_free+0xf70/0xf70
[  292.344699]  ? find_held_lock+0x36/0x1c0
[  292.348770]  oom_kill_process.cold.27+0x10/0x903
[  292.353531]  ? zap_class+0x640/0x640
[  292.357248]  ? check_preemption_disabled+0x48/0x280
[  292.362295]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.367241]  ? kasan_check_read+0x11/0x20
[  292.371388]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.376665]  ? oom_evaluate_task+0x540/0x540
[  292.381079]  ? find_held_lock+0x36/0x1c0
[  292.385154]  ? out_of_memory+0x974/0x1430
[  292.389303]  ? lock_downgrade+0x900/0x900
[  292.393460]  ? check_preemption_disabled+0x48/0x280
[  292.398493]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.403422]  ? kasan_check_read+0x11/0x20
[  292.407568]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.412842]  ? rcu_softirq_qs+0x20/0x20
[  292.416835]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.422377]  ? oom_evaluate_task+0x302/0x540
[  292.426808]  out_of_memory+0xa84/0x1430
[  292.430805]  ? oom_killer_disable+0x3a0/0x3a0
[  292.435302]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  292.440240]  ? __ww_mutex_check_waiters+0x160/0x160
[  292.445267]  __alloc_pages_slowpath+0x2354/0x2e10
[  292.450141]  ? warn_alloc+0x120/0x120
[  292.453951]  ? mark_held_locks+0x130/0x130
[  292.458194]  ? find_get_entry+0xaae/0x1120
[  292.462455]  ? filemap_map_pages+0x1a20/0x1a20
[  292.467051]  ? zap_class+0x640/0x640
[  292.470789]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.476342]  ? check_preemption_disabled+0x48/0x280
[  292.481361]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.486961]  ? should_fail+0x22d/0xd01
[  292.490882]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.496005]  ? zap_class+0x640/0x640
[  292.499758]  ? __lock_is_held+0xb5/0x140
[  292.503825]  ? mark_held_locks+0x130/0x130
[  292.508062]  ? lock_release+0xa00/0xa00
[  292.512040]  ? perf_trace_sched_process_exec+0x860/0x860
[  292.517539]  ? xa_load+0x2ba/0x460
[  292.521085]  ? lock_downgrade+0x900/0x900
[  292.525241]  ? __might_sleep+0x95/0x190
[  292.529222]  __alloc_pages_nodemask+0xa80/0xde0
[  292.533900]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  292.538958]  ? __page_cache_alloc+0x191/0x5c0
[  292.543464]  ? xa_load+0x2e1/0x460
[  292.547027]  ? xa_clear_mark+0x40/0x40
[  292.550956]  ? zap_class+0x640/0x640
[  292.554678]  ? zap_class+0x640/0x640
[  292.558391]  ? zap_class+0x640/0x640
[  292.562108]  ? __do_page_cache_readahead+0x663/0x810
[  292.567214]  ? find_held_lock+0x36/0x1c0
[  292.571278]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  292.576823]  alloc_pages_current+0x173/0x350
[  292.581241]  __page_cache_alloc+0x38c/0x5c0
[  292.585572]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.590501]  ? kasan_check_read+0x11/0x20
[  292.594669]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.599959]  ? generic_perform_write+0x6a0/0x6a0
[  292.604721]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.610264]  ? check_preemption_disabled+0x48/0x280
[  292.615295]  filemap_fault+0x1595/0x25f0
[  292.619375]  ? __lock_page_or_retry+0xa00/0xa00
[  292.624052]  ? mark_held_locks+0x130/0x130
[  292.628304]  ? filemap_map_pages+0xd6b/0x1a20
[  292.632802]  ? lock_downgrade+0x900/0x900
[  292.636956]  ? check_preemption_disabled+0x48/0x280
[  292.641975]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.646927]  ? kasan_check_read+0x11/0x20
[  292.651079]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.656356]  ? rcu_softirq_qs+0x20/0x20
[  292.660347]  ? filemap_map_pages+0xd92/0x1a20
[  292.664860]  ? find_get_entries_tag+0x1400/0x1400
[  292.669706]  ? find_held_lock+0x36/0x1c0
[  292.673788]  ? lock_acquire+0x1ed/0x520
[  292.677761]  ? ext4_filemap_fault+0x7a/0xad
[  292.682091]  ? lock_release+0xa00/0xa00
[  292.686068]  ? perf_trace_sched_process_exec+0x860/0x860
[  292.691526]  ? print_usage_bug+0xc0/0xc0
[  292.695591]  ? print_usage_bug+0xc0/0xc0
[  292.699666]  ? down_read+0x8d/0x120
[  292.703302]  ? ext4_filemap_fault+0x7a/0xad
[  292.707638]  ? __down_interruptible+0x700/0x700
[  292.712316]  ext4_filemap_fault+0x82/0xad
[  292.716473]  __do_fault+0x100/0x6b0
[  292.720103]  ? find_held_lock+0x36/0x1c0
[  292.724170]  ? pmd_devmap_trans_unstable+0x220/0x220
[  292.729276]  ? mark_held_locks+0x130/0x130
[  292.733518]  ? mark_held_locks+0x130/0x130
[  292.737767]  ? kasan_check_read+0x11/0x20
[  292.741934]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.747478]  __handle_mm_fault+0x3ea0/0x5be0
[  292.752364]  ? perf_trace_lock+0x7a0/0x7a0
[  292.756609]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  292.761466]  ? __switch_to_asm+0x34/0x70
[  292.765526]  ? __switch_to_asm+0x34/0x70
[  292.769949]  ? zap_class+0x640/0x640
[  292.773674]  ? zap_class+0x640/0x640
[  292.777398]  ? __x64_sys_futex+0x53e/0x6a0
[  292.781676]  ? find_held_lock+0x36/0x1c0
[  292.785779]  ? handle_mm_fault+0x42a/0xc70
[  292.790033]  ? lock_downgrade+0x900/0x900
[  292.794769]  ? check_preemption_disabled+0x48/0x280
[  292.799793]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  292.804723]  ? kasan_check_read+0x11/0x20
[  292.808871]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.814148]  ? rcu_softirq_qs+0x20/0x20
[  292.818128]  ? trace_hardirqs_off_caller+0x310/0x310
[  292.823234]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.828778]  ? check_preemption_disabled+0x48/0x280
[  292.833803]  handle_mm_fault+0x54f/0xc70
[  292.837877]  ? __handle_mm_fault+0x5be0/0x5be0
[  292.842467]  ? find_vma+0x34/0x190
[  292.846017]  __do_page_fault+0x5e8/0xe60
[  292.850086]  ? trace_hardirqs_off+0xb8/0x310
[  292.854507]  do_page_fault+0xf2/0x7e0
[  292.858313]  ? vmalloc_sync_all+0x30/0x30
[  292.862464]  ? error_entry+0x70/0xd0
[  292.866181]  ? trace_hardirqs_off_caller+0xbb/0x310
[  292.871197]  ? trace_hardirqs_on_caller+0xc0/0x310
[  292.876131]  ? syscall_return_slowpath+0x5e0/0x5e0
[  292.881072]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.885956]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.890974]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  292.896435]  ? prepare_exit_to_usermode+0x291/0x3b0
[  292.901456]  ? page_fault+0x8/0x30
[  292.905001]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.909854]  ? page_fault+0x8/0x30
[  292.913397]  page_fault+0x1e/0x30
[  292.916850] RIP: 0033:0x44b69a
[  292.920072] Code: Bad RIP value.
[  292.923436] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  292.928796] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  292.936083] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  292.943405] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  292.950671] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  292.957942] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  292.965248] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  292.965253] warn_alloc_show_mem: 1 callbacks suppressed
[  292.965260] Mem-Info:
[  292.972467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  292.977836] active_anon:47227 inactive_anon:190 isolated_anon:0
[  292.977836]  active_file:11 inactive_file:14 isolated_file:0
[  292.977836]  unevictable:0 dirty:0 writeback:0 unstable:0
[  292.977836]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  292.977836]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  292.977836]  free:13756 free_pcp:235 free_cma:0
[  292.980223] Call Trace:
[  292.989630] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  293.022490]  <IRQ>
[  293.025070] 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
[  293.052623]  dump_stack+0x244/0x39d
[  293.054770] lowmem_reserve[]: 0 2818 6321 6321
[  293.080898]  ? dump_stack_print_info.cold.1+0x20/0x20
[  293.084493] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  293.089080]  warn_alloc.cold.116+0xb7/0x1bd
[  293.094231] lowmem_reserve[]: 0 0 3503 3503
[  293.121577]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  293.125870] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  293.130192]  ? lock_downgrade+0x900/0x900
[  293.135005] lowmem_reserve[]: 0 0 0 0
[  293.163933]  ? trace_hardirqs_off+0xb8/0x310
[  293.168057] 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
[  293.171865]  ? trace_hardirqs_off+0xb8/0x310
[  293.176245] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  293.189792]  __alloc_pages_slowpath+0x26e8/0x2e10
[  293.194176] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  293.209463]  ? warn_alloc+0x120/0x120
[  293.214260] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  293.229346]  ? print_usage_bug+0xc0/0xc0
[  293.233127] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  293.241958]  ? warn_alloc+0x120/0x120
[  293.245990] 269 total pagecache pages
[  293.254563]  ? warn_alloc+0x120/0x120
[  293.258344] 0 pages in swap cache
[  293.262144]  ? print_usage_bug+0xc0/0xc0
[  293.265930] Swap cache stats: add 0, delete 0, find 0/0
[  293.269375]  ? print_usage_bug+0xc0/0xc0
[  293.273431] Free swap  = 0kB
[  293.278791]  ? __lock_acquire+0x62f/0x4c20
[  293.282824] Total swap = 0kB
[  293.285837]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.290046] 1965979 pages RAM
[  293.293060]  ? should_fail+0x22d/0xd01
[  293.298568] 0 pages HighMem/MovableOnly
[  293.301673]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  293.305526] 342853 pages reserved
[  293.305534] 0 pages cma reserved
[  293.309507]  ? __lock_acquire+0x62f/0x4c20
[  293.314660] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  293.318047]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  293.321453] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  293.325617]  ? __lock_acquire+0x62f/0x4c20
[  293.332088] syz-fuzzer cpuset=/ mems_allowed=0
[  293.337189]  ? should_fail+0x22d/0xd01
[  293.337207]  ? find_held_lock+0x36/0x1c0
[  293.364163]  ? mark_held_locks+0x130/0x130
[  293.368411]  ? mark_held_locks+0x130/0x130
[  293.372650]  ? zap_class+0x640/0x640
[  293.376370]  ? zap_class+0x640/0x640
[  293.380091]  ? print_usage_bug+0xc0/0xc0
[  293.384156]  ? do_raw_spin_unlock+0xa7/0x330
[  293.388564]  ? zap_class+0x640/0x640
[  293.392283]  ? print_usage_bug+0xc0/0xc0
[  293.396343]  ? wq_watchdog_touch+0x9c/0xfe
[  293.400583]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.406126]  ? check_preemption_disabled+0x48/0x280
[  293.411157]  ? __lock_is_held+0xb5/0x140
[  293.415226]  __alloc_pages_nodemask+0xa80/0xde0
[  293.419899]  ? zap_class+0x640/0x640
[  293.423626]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  293.428657]  ? find_held_lock+0x36/0x1c0
[  293.432730]  ? ____cache_alloc_node+0x1c7/0x1e0
[  293.437401]  ? lock_downgrade+0x900/0x900
[  293.441561]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.447107]  cache_grow_begin+0xa5/0x8c0
[  293.451169]  ? do_raw_spin_unlock+0xa7/0x330
[  293.455591]  fallback_alloc+0x204/0x2e0
[  293.459578]  ____cache_alloc_node+0x1c7/0x1e0
[  293.464081]  kmem_cache_alloc_node+0xe3/0x730
[  293.468581]  ? ipv6_get_ifaddr+0x42e/0x620
[  293.472842]  __alloc_skb+0x119/0x770
[  293.476559]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.481841]  ? netdev_alloc_frag+0x1f0/0x1f0
[  293.486251]  ? lock_downgrade+0x900/0x900
[  293.490413]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.495959]  ? refcount_sub_and_test_checked+0x203/0x310
[  293.501415]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  293.506872]  ? addrconf_rs_timer+0x690/0x690
[  293.511296]  ndisc_alloc_skb+0x144/0x340
[  293.515364]  ndisc_send_rs+0x331/0x6e0
[  293.519260]  addrconf_rs_timer+0x314/0x690
[  293.523505]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.527763]  call_timer_fn+0x272/0x920
[  293.531678]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.535931]  ? process_timeout+0x40/0x40
[  293.540002]  ? __run_timers+0x7da/0xc70
[  293.543990]  ? _raw_spin_unlock_irq+0x27/0x80
[  293.548485]  ? _raw_spin_unlock_irq+0x27/0x80
[  293.553007]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.557249]  ? lockdep_hardirqs_on+0x296/0x5b0
[  293.561833]  ? trace_hardirqs_on+0xbd/0x310
[  293.566167]  ? kasan_check_read+0x11/0x20
[  293.570321]  ? __run_timers+0x7da/0xc70
[  293.574299]  ? trace_hardirqs_off_caller+0x310/0x310
[  293.579412]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.583654]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.587895]  __run_timers+0x7e5/0xc70
[  293.591719]  ? timer_fixup_init+0x70/0x70
[  293.595877]  ? lock_acquire+0x1ed/0x520
[  293.599857]  ? zap_class+0x640/0x640
[  293.603610]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.609189]  ? kasan_check_read+0x11/0x20
[  293.613379]  ? do_raw_spin_lock+0x14f/0x350
[  293.617710]  ? find_held_lock+0x36/0x1c0
[  293.621778]  ? zap_class+0x640/0x640
[  293.625497]  ? pvclock_read_flags+0x160/0x160
[  293.630003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.635546]  ? check_preemption_disabled+0x48/0x280
[  293.640578]  ? __lock_is_held+0xb5/0x140
[  293.644643]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.650185]  ? check_preemption_disabled+0x48/0x280
[  293.655211]  run_timer_softirq+0x52/0xb0
[  293.659331]  ? rcu_read_lock_sched_held+0x14f/0x180
[  293.664371]  __do_softirq+0x308/0xb7e
[  293.668193]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  293.672704]  ? lock_downgrade+0x900/0x900
[  293.676891]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  293.682013]  ? pvclock_read_flags+0x160/0x160
[  293.686515]  ? lapic_next_event+0x5a/0x90
[  293.690675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.696220]  ? kvm_clock_read+0x18/0x30
[  293.700199]  ? kvm_sched_clock_read+0x9/0x20
[  293.704614]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.710161]  ? check_preemption_disabled+0x48/0x280
[  293.715201]  irq_exit+0x17f/0x1c0
[  293.718668]  smp_apic_timer_interrupt+0x1cb/0x760
[  293.723510]  ? smp_call_function_single_interrupt+0x159/0x650
[  293.729406]  ? smp_call_function_single_interrupt+0x650/0x650
[  293.735294]  ? interrupt_entry+0xb5/0xc0
[  293.739363]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.744380]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.749398]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.754242]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.759259]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.764292]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.769143]  apic_timer_interrupt+0xf/0x20
[  293.773373]  </IRQ>
[  293.775614] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  293.780548] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  293.799470] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  293.807180] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  293.814452] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  293.821720] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  293.828990] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  293.836259] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  293.843581]  skb_clone+0x1bb/0x500
[  293.847132]  ? skb_split+0x11e0/0x11e0
[  293.851029]  ? check_preemption_disabled+0x48/0x280
[  293.856062]  ? __this_cpu_preempt_check+0x1c/0x20
[  293.860905]  ? __bpf_redirect+0x54b/0xb20
[  293.865070]  bpf_clone_redirect+0xb9/0x490
[  293.869322]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  293.874347]  ? __sched_text_start+0x8/0x8
[  293.878499]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  293.883782]  ? find_held_lock+0x36/0x1c0
[  293.887852]  ? lock_acquire+0x1ed/0x520
[  293.891829]  ? bpf_test_run+0x3cb/0x780
[  293.895809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.901350]  ? check_preemption_disabled+0x48/0x280
[  293.906378]  ? kasan_check_read+0x11/0x20
[  293.910539]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.915817]  ? rcu_softirq_qs+0x20/0x20
[  293.919798]  ? preempt_schedule+0x4d/0x60
[  293.923956]  ? ___preempt_schedule+0x16/0x18
[  293.928373]  ? bpf_test_run+0x25d/0x780
[  293.932367]  ? netlink_diag_dump+0x2a0/0x2a0
[  293.936787]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  293.941555]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  293.946322]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  293.951169]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  293.956708]  ? fput+0x130/0x1a0
[  293.959990]  ? __bpf_prog_get+0x9b/0x290
[  293.964097]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  293.968954]  ? bpf_prog_test_run+0x130/0x1a0
[  293.973368]  ? __x64_sys_bpf+0x3d8/0x520
[  293.977433]  ? bpf_prog_get+0x20/0x20
[  293.981257]  ? do_syscall_64+0x1b9/0x820
[  293.985330]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  293.990697]  ? syscall_return_slowpath+0x5e0/0x5e0
[  293.995627]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.000485]  ? trace_hardirqs_on_caller+0x310/0x310
[  294.005508]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  294.010538]  ? prepare_exit_to_usermode+0x291/0x3b0
[  294.015572]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.020428]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  294.025813] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  294.025902] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  294.032750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  294.032755] Call Trace:
[  294.032763]  <IRQ>
[  294.032782]  dump_stack+0x244/0x39d
[  294.032801]  ? dump_stack_print_info.cold.1+0x20/0x20
[  294.032828]  warn_alloc.cold.116+0xb7/0x1bd
[  294.039362] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  294.048641]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  294.051198] syz-executor4 cpuset=syz4 mems_allowed=0
[  294.053343]  ? lock_downgrade+0x900/0x900
[  294.091015]  ? trace_hardirqs_off+0xb8/0x310
[  294.095443]  ? trace_hardirqs_off+0xb8/0x310
[  294.099865]  __alloc_pages_slowpath+0x26e8/0x2e10
[  294.104740]  ? warn_alloc+0x120/0x120
[  294.108548]  ? print_usage_bug+0xc0/0xc0
[  294.112615]  ? warn_alloc+0x120/0x120
[  294.116422]  ? warn_alloc+0x120/0x120
[  294.120223]  ? print_usage_bug+0xc0/0xc0
[  294.124288]  ? print_usage_bug+0xc0/0xc0
[  294.128351]  ? __lock_acquire+0x62f/0x4c20
[  294.132592]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.138133]  ? should_fail+0x22d/0xd01
[  294.142031]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  294.147139]  ? __lock_acquire+0x62f/0x4c20
[  294.151386]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  294.156489]  ? __lock_acquire+0x62f/0x4c20
[  294.160721]  ? should_fail+0x22d/0xd01
[  294.164609]  ? find_held_lock+0x36/0x1c0
[  294.168681]  ? mark_held_locks+0x130/0x130
[  294.172930]  ? mark_held_locks+0x130/0x130
[  294.177166]  ? zap_class+0x640/0x640
[  294.180882]  ? zap_class+0x640/0x640
[  294.184616]  ? print_usage_bug+0xc0/0xc0
[  294.188680]  ? do_raw_spin_unlock+0xa7/0x330
[  294.193092]  ? zap_class+0x640/0x640
[  294.196808]  ? print_usage_bug+0xc0/0xc0
[  294.200884]  ? wq_watchdog_touch+0x9c/0xfe
[  294.205135]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.210689]  ? check_preemption_disabled+0x48/0x280
[  294.215714]  ? __lock_is_held+0xb5/0x140
[  294.219782]  __alloc_pages_nodemask+0xa80/0xde0
[  294.224451]  ? zap_class+0x640/0x640
[  294.228170]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  294.233197]  ? find_held_lock+0x36/0x1c0
[  294.237270]  ? ____cache_alloc_node+0x1c7/0x1e0
[  294.241949]  ? lock_downgrade+0x900/0x900
[  294.246113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.251658]  cache_grow_begin+0xa5/0x8c0
[  294.255722]  ? do_raw_spin_unlock+0xa7/0x330
[  294.260143]  fallback_alloc+0x204/0x2e0
[  294.264127]  ____cache_alloc_node+0x1c7/0x1e0
[  294.268628]  kmem_cache_alloc_node+0xe3/0x730
[  294.273148]  ? ipv6_get_ifaddr+0x42e/0x620
[  294.277402]  __alloc_skb+0x119/0x770
[  294.281115]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.286397]  ? netdev_alloc_frag+0x1f0/0x1f0
[  294.290807]  ? lock_downgrade+0x900/0x900
[  294.294964]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.300504]  ? refcount_sub_and_test_checked+0x203/0x310
[  294.305966]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  294.311419]  ? addrconf_rs_timer+0x690/0x690
[  294.315843]  ndisc_alloc_skb+0x144/0x340
[  294.319909]  ndisc_send_rs+0x331/0x6e0
[  294.323820]  addrconf_rs_timer+0x314/0x690
[  294.328064]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.332314]  call_timer_fn+0x272/0x920
[  294.336205]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.340442]  ? process_timeout+0x40/0x40
[  294.344523]  ? mark_held_locks+0xc7/0x130
[  294.348679]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.353175]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.357671]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.361906]  ? lockdep_hardirqs_on+0x296/0x5b0
[  294.366513]  ? trace_hardirqs_on+0xbd/0x310
[  294.370836]  ? kasan_check_read+0x11/0x20
[  294.374983]  ? __run_timers+0x7da/0xc70
[  294.378963]  ? trace_hardirqs_off_caller+0x310/0x310
[  294.384076]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.388316]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.392551]  __run_timers+0x7e5/0xc70
[  294.396363]  ? timer_fixup_init+0x70/0x70
[  294.400515]  ? kasan_check_read+0x11/0x20
[  294.404672]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.409959]  ? rcu_softirq_qs+0x20/0x20
[  294.413947]  ? mark_held_locks+0xc7/0x130
[  294.418104]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  294.422865]  ? retint_kernel+0x2d/0x2d
[  294.426754]  ? trace_hardirqs_on_caller+0xc0/0x310
[  294.431688]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  294.436448]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  294.441903]  ? zap_class+0x640/0x640
[  294.445663]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.451207]  ? check_preemption_disabled+0x48/0x280
[  294.456237]  ? __lock_is_held+0xb5/0x140
[  294.460298]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.465839]  ? check_preemption_disabled+0x48/0x280
[  294.470861]  run_timer_softirq+0x52/0xb0
[  294.474937]  ? rcu_read_lock_sched_held+0x14f/0x180
[  294.479958]  __do_softirq+0x308/0xb7e
[  294.483762]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  294.488259]  ? lock_downgrade+0x900/0x900
[  294.492413]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  294.497541]  ? pvclock_read_flags+0x160/0x160
[  294.502058]  ? lapic_next_event+0x5a/0x90
[  294.506209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.511750]  ? kvm_clock_read+0x18/0x30
[  294.515743]  ? kvm_sched_clock_read+0x9/0x20
[  294.520155]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.525696]  ? check_preemption_disabled+0x48/0x280
[  294.530721]  irq_exit+0x17f/0x1c0
[  294.534183]  smp_apic_timer_interrupt+0x1cb/0x760
[  294.539047]  ? smp_call_function_single_interrupt+0x650/0x650
[  294.544946]  ? interrupt_entry+0xb5/0xc0
[  294.549012]  ? trace_hardirqs_off_caller+0xbb/0x310
[  294.554049]  ? trace_hardirqs_off_caller+0xbb/0x310
[  294.559068]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.563910]  ? trace_hardirqs_on_caller+0x310/0x310
[  294.568943]  ? trace_hardirqs_on_caller+0x310/0x310
[  294.573972]  ? task_prio+0x50/0x50
[  294.577516]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.583062]  ? check_preemption_disabled+0x48/0x280
[  294.588093]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.592956]  apic_timer_interrupt+0xf/0x20
[  294.597191]  </IRQ>
[  294.599532] RIP: 0010:dump_stack+0x358/0x39d
[  294.603964] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  294.622868] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  294.630580] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  294.637864] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  294.645132] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  294.652399] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  294.659667] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  294.666967]  ? dump_stack+0x34f/0x39d
[  294.670782]  ? dump_stack_print_info.cold.1+0x20/0x20
[  294.676026]  ? mark_held_locks+0x130/0x130
[  294.680264]  ? mark_held_locks+0x130/0x130
[  294.684504]  dump_header+0x27b/0xf72
[  294.688231]  ? pagefault_out_of_memory+0x197/0x197
[  294.693167]  ? __lock_acquire+0x62f/0x4c20
[  294.697405]  ? percpu_ref_get_many+0x240/0x240
[  294.701994]  ? print_usage_bug+0xc0/0xc0
[  294.706066]  ? zap_class+0x640/0x640
[  294.709785]  ? print_usage_bug+0xc0/0xc0
[  294.713846]  ? print_usage_bug+0xc0/0xc0
[  294.717911]  ? zap_class+0x640/0x640
[  294.721642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.727185]  ? find_held_lock+0x36/0x1c0
[  294.731260]  ? mark_held_locks+0xc7/0x130
[  294.735414]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  294.740519]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  294.745626]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  294.750613]  ? trace_hardirqs_on+0xbd/0x310
[  294.754952]  ? kasan_check_read+0x11/0x20
[  294.759103]  ? ___ratelimit+0x3b4/0x672
[  294.763083]  ? trace_hardirqs_off_caller+0x310/0x310
[  294.768188]  ? trace_hardirqs_on+0x310/0x310
[  294.772599]  ? lock_downgrade+0x900/0x900
[  294.776753]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  294.781864]  ? ___ratelimit+0x3b9/0x672
[  294.785839]  ? idr_get_free+0xf70/0xf70
[  294.789825]  ? find_held_lock+0x36/0x1c0
[  294.793899]  oom_kill_process.cold.27+0x10/0x903
[  294.798661]  ? zap_class+0x640/0x640
[  294.802384]  ? check_preemption_disabled+0x48/0x280
[  294.807404]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  294.812334]  ? kasan_check_read+0x11/0x20
[  294.816480]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.821762]  ? oom_evaluate_task+0x540/0x540
[  294.826177]  ? find_held_lock+0x36/0x1c0
[  294.830247]  ? out_of_memory+0x974/0x1430
[  294.834400]  ? lock_downgrade+0x900/0x900
[  294.838552]  ? check_preemption_disabled+0x48/0x280
[  294.843575]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  294.848507]  ? kasan_check_read+0x11/0x20
[  294.852660]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.857942]  ? rcu_softirq_qs+0x20/0x20
[  294.861930]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.867468]  ? oom_evaluate_task+0x302/0x540
[  294.871882]  out_of_memory+0xa84/0x1430
[  294.875870]  ? oom_killer_disable+0x3a0/0x3a0
[  294.880373]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  294.885310]  ? __ww_mutex_check_waiters+0x160/0x160
[  294.890336]  __alloc_pages_slowpath+0x2354/0x2e10
[  294.895220]  ? warn_alloc+0x120/0x120
[  294.899027]  ? mark_held_locks+0x130/0x130
[  294.903268]  ? find_get_entry+0xaae/0x1120
[  294.907517]  ? filemap_map_pages+0x1a20/0x1a20
[  294.912104]  ? zap_class+0x640/0x640
[  294.915824]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.921362]  ? check_preemption_disabled+0x48/0x280
[  294.926383]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.931930]  ? should_fail+0x22d/0xd01
[  294.935824]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  294.940941]  ? zap_class+0x640/0x640
[  294.944689]  ? __lock_is_held+0xb5/0x140
[  294.948759]  ? mark_held_locks+0x130/0x130
[  294.953007]  ? lock_release+0xa00/0xa00
[  294.956999]  ? perf_trace_sched_process_exec+0x860/0x860
[  294.962454]  ? xa_load+0x2ba/0x460
[  294.965997]  ? lock_downgrade+0x900/0x900
[  294.970158]  ? __might_sleep+0x95/0x190
[  294.974162]  __alloc_pages_nodemask+0xa80/0xde0
[  294.978841]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  294.983860]  ? __page_cache_alloc+0x191/0x5c0
[  294.988356]  ? xa_load+0x2e1/0x460
[  294.991897]  ? xa_clear_mark+0x40/0x40
[  294.995798]  ? zap_class+0x640/0x640
[  294.999520]  ? zap_class+0x640/0x640
[  295.003232]  ? zap_class+0x640/0x640
[  295.006954]  ? __do_page_cache_readahead+0x663/0x810
[  295.012067]  ? find_held_lock+0x36/0x1c0
[  295.016136]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  295.021681]  alloc_pages_current+0x173/0x350
[  295.026102]  __page_cache_alloc+0x38c/0x5c0
[  295.030421]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  295.035354]  ? kasan_check_read+0x11/0x20
[  295.039505]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.044796]  ? generic_perform_write+0x6a0/0x6a0
[  295.049556]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.055099]  ? check_preemption_disabled+0x48/0x280
[  295.060130]  filemap_fault+0x1595/0x25f0
[  295.064208]  ? __lock_page_or_retry+0xa00/0xa00
[  295.068883]  ? mark_held_locks+0x130/0x130
[  295.073140]  ? filemap_map_pages+0xd6b/0x1a20
[  295.077655]  ? lock_downgrade+0x900/0x900
[  295.081807]  ? check_preemption_disabled+0x48/0x280
[  295.086830]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  295.091762]  ? kasan_check_read+0x11/0x20
[  295.095911]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.101199]  ? rcu_softirq_qs+0x20/0x20
[  295.105189]  ? filemap_map_pages+0xd92/0x1a20
[  295.109697]  ? find_get_entries_tag+0x1400/0x1400
[  295.114544]  ? find_held_lock+0x36/0x1c0
[  295.118625]  ? lock_acquire+0x1ed/0x520
[  295.122601]  ? ext4_filemap_fault+0x7a/0xad
[  295.126978]  ? lock_release+0xa00/0xa00
[  295.130955]  ? perf_trace_sched_process_exec+0x860/0x860
[  295.136417]  ? print_usage_bug+0xc0/0xc0
[  295.140484]  ? print_usage_bug+0xc0/0xc0
[  295.144566]  ? down_read+0x8d/0x120
[  295.148194]  ? ext4_filemap_fault+0x7a/0xad
[  295.152562]  ? __down_interruptible+0x700/0x700
[  295.157241]  ext4_filemap_fault+0x82/0xad
[  295.161392]  __do_fault+0x100/0x6b0
[  295.165035]  ? find_held_lock+0x36/0x1c0
[  295.169102]  ? pmd_devmap_trans_unstable+0x220/0x220
[  295.174208]  ? mark_held_locks+0x130/0x130
[  295.178444]  ? mark_held_locks+0x130/0x130
[  295.182696]  ? kasan_check_read+0x11/0x20
[  295.186850]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.192393]  __handle_mm_fault+0x3ea0/0x5be0
[  295.196820]  ? perf_trace_lock+0x7a0/0x7a0
[  295.201067]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  295.205944]  ? __switch_to_asm+0x34/0x70
[  295.210004]  ? __switch_to_asm+0x34/0x70
[  295.214085]  ? zap_class+0x640/0x640
[  295.217800]  ? zap_class+0x640/0x640
[  295.221514]  ? __x64_sys_futex+0x53e/0x6a0
[  295.225754]  ? find_held_lock+0x36/0x1c0
[  295.229834]  ? handle_mm_fault+0x42a/0xc70
[  295.234077]  ? lock_downgrade+0x900/0x900
[  295.238231]  ? check_preemption_disabled+0x48/0x280
[  295.243249]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  295.248181]  ? kasan_check_read+0x11/0x20
[  295.252328]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.257604]  ? rcu_softirq_qs+0x20/0x20
[  295.261581]  ? trace_hardirqs_off_caller+0x310/0x310
[  295.266688]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.272231]  ? check_preemption_disabled+0x48/0x280
[  295.277258]  handle_mm_fault+0x54f/0xc70
[  295.281334]  ? __handle_mm_fault+0x5be0/0x5be0
[  295.285932]  ? find_vma+0x34/0x190
[  295.289480]  __do_page_fault+0x5e8/0xe60
[  295.293543]  ? trace_hardirqs_off+0xb8/0x310
[  295.297989]  do_page_fault+0xf2/0x7e0
[  295.301795]  ? vmalloc_sync_all+0x30/0x30
[  295.305952]  ? error_entry+0x70/0xd0
[  295.309673]  ? trace_hardirqs_off_caller+0xbb/0x310
[  295.314705]  ? trace_hardirqs_on_caller+0xc0/0x310
[  295.319636]  ? syscall_return_slowpath+0x5e0/0x5e0
[  295.324569]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.329415]  ? trace_hardirqs_on_caller+0x310/0x310
[  295.334430]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  295.339889]  ? prepare_exit_to_usermode+0x291/0x3b0
[  295.344926]  ? page_fault+0x8/0x30
[  295.348481]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.353330]  ? page_fault+0x8/0x30
[  295.356876]  page_fault+0x1e/0x30
[  295.360333] RIP: 0033:0x44b69a
[  295.363541] Code: Bad RIP value.
[  295.366902] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  295.372278] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  295.379545] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  295.386812] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  295.394083] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  295.401349] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  295.408650] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  295.408656] warn_alloc_show_mem: 1 callbacks suppressed
[  295.408663] Mem-Info:
[  295.415858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  295.421231] active_anon:47227 inactive_anon:190 isolated_anon:0
[  295.421231]  active_file:11 inactive_file:14 isolated_file:0
[  295.421231]  unevictable:0 dirty:0 writeback:0 unstable:0
[  295.421231]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  295.421231]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  295.421231]  free:13756 free_pcp:235 free_cma:0
[  295.423604] Call Trace:
[  295.432998] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  295.465862]  <IRQ>
[  295.468444] 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
[  295.495963]  dump_stack+0x244/0x39d
[  295.498091] lowmem_reserve[]: 0 2818 6321 6321
[  295.524216]  ? dump_stack_print_info.cold.1+0x20/0x20
[  295.527818] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  295.532410]  warn_alloc.cold.116+0xb7/0x1bd
[  295.537564] lowmem_reserve[]: 0 0 3503 3503
[  295.564912]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  295.569217] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  295.573544]  ? lock_downgrade+0x900/0x900
[  295.578340] lowmem_reserve[]: 0 0 0 0
[  295.607253]  ? trace_hardirqs_off+0xb8/0x310
[  295.611377] 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
[  295.615182]  ? trace_hardirqs_off+0xb8/0x310
[  295.619562] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  295.633096]  __alloc_pages_slowpath+0x26e8/0x2e10
[  295.637472] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  295.652764]  ? warn_alloc+0x120/0x120
[  295.657580] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  295.672686]  ? print_usage_bug+0xc0/0xc0
[  295.676471] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  295.685304]  ? warn_alloc+0x120/0x120
[  295.689339] 269 total pagecache pages
[  295.697928]  ? warn_alloc+0x120/0x120
[  295.701708] 0 pages in swap cache
[  295.705503]  ? print_usage_bug+0xc0/0xc0
[  295.709269] Swap cache stats: add 0, delete 0, find 0/0
[  295.709278] Free swap  = 0kB
[  295.712764]  ? print_usage_bug+0xc0/0xc0
[  295.716785] Total swap = 0kB
[  295.716794] 1965979 pages RAM
[  295.722153]  ? __lock_acquire+0x62f/0x4c20
[  295.725142] 0 pages HighMem/MovableOnly
[  295.725151] 342853 pages reserved
[  295.729212]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.732203] 0 pages cma reserved
[  295.735308]  ? should_fail+0x22d/0xd01
[  295.739592] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  295.743487]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.743505]  ? __lock_acquire+0x62f/0x4c20
[  295.743529]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.747061] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  295.752499]  ? __lock_acquire+0x62f/0x4c20
[  295.755837] syz-fuzzer cpuset=/ mems_allowed=0
[  295.759719]  ? should_fail+0x22d/0xd01
[  295.803485]  ? find_held_lock+0x36/0x1c0
[  295.807565]  ? mark_held_locks+0x130/0x130
[  295.811815]  ? mark_held_locks+0x130/0x130
[  295.816055]  ? zap_class+0x640/0x640
[  295.819771]  ? zap_class+0x640/0x640
[  295.823489]  ? print_usage_bug+0xc0/0xc0
[  295.827555]  ? do_raw_spin_unlock+0xa7/0x330
[  295.831965]  ? zap_class+0x640/0x640
[  295.835679]  ? print_usage_bug+0xc0/0xc0
[  295.839740]  ? wq_watchdog_touch+0x9c/0xfe
[  295.843982]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.849537]  ? check_preemption_disabled+0x48/0x280
[  295.854568]  ? __lock_is_held+0xb5/0x140
[  295.858637]  __alloc_pages_nodemask+0xa80/0xde0
[  295.863312]  ? zap_class+0x640/0x640
[  295.867035]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  295.872069]  ? find_held_lock+0x36/0x1c0
[  295.876146]  ? ____cache_alloc_node+0x1c7/0x1e0
[  295.880819]  ? lock_downgrade+0x900/0x900
[  295.885149]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.890705]  cache_grow_begin+0xa5/0x8c0
[  295.894770]  ? do_raw_spin_unlock+0xa7/0x330
[  295.899192]  fallback_alloc+0x204/0x2e0
[  295.903181]  ____cache_alloc_node+0x1c7/0x1e0
[  295.907686]  kmem_cache_alloc_node+0xe3/0x730
[  295.912189]  ? ipv6_get_ifaddr+0x42e/0x620
[  295.916441]  __alloc_skb+0x119/0x770
[  295.920158]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.925445]  ? netdev_alloc_frag+0x1f0/0x1f0
[  295.929870]  ? lock_downgrade+0x900/0x900
[  295.934033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.939576]  ? refcount_sub_and_test_checked+0x203/0x310
[  295.945036]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  295.950498]  ? addrconf_rs_timer+0x690/0x690
[  295.954939]  ndisc_alloc_skb+0x144/0x340
[  295.959014]  ndisc_send_rs+0x331/0x6e0
[  295.962912]  addrconf_rs_timer+0x314/0x690
[  295.967166]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.971419]  call_timer_fn+0x272/0x920
[  295.975323]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.979563]  ? process_timeout+0x40/0x40
[  295.983637]  ? __run_timers+0x7da/0xc70
[  295.987617]  ? _raw_spin_unlock_irq+0x27/0x80
[  295.992113]  ? _raw_spin_unlock_irq+0x27/0x80
[  295.996612]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.000852]  ? lockdep_hardirqs_on+0x296/0x5b0
[  296.005438]  ? trace_hardirqs_on+0xbd/0x310
[  296.009768]  ? kasan_check_read+0x11/0x20
[  296.013927]  ? __run_timers+0x7da/0xc70
[  296.017908]  ? trace_hardirqs_off_caller+0x310/0x310
[  296.023034]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.027272]  __run_timers+0x7e5/0xc70
[  296.031090]  ? timer_fixup_init+0x70/0x70
[  296.035243]  ? lock_acquire+0x1ed/0x520
[  296.039221]  ? zap_class+0x640/0x640
[  296.042947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.048497]  ? kasan_check_read+0x11/0x20
[  296.052659]  ? do_raw_spin_lock+0x14f/0x350
[  296.056999]  ? find_held_lock+0x36/0x1c0
[  296.061074]  ? zap_class+0x640/0x640
[  296.064797]  ? pvclock_read_flags+0x160/0x160
[  296.069298]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.074840]  ? check_preemption_disabled+0x48/0x280
[  296.079873]  ? __lock_is_held+0xb5/0x140
[  296.083951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.089500]  ? check_preemption_disabled+0x48/0x280
[  296.094539]  run_timer_softirq+0x52/0xb0
[  296.098604]  ? rcu_read_lock_sched_held+0x14f/0x180
[  296.103630]  __do_softirq+0x308/0xb7e
[  296.107439]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  296.111944]  ? lock_downgrade+0x900/0x900
[  296.116106]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  296.121225]  ? pvclock_read_flags+0x160/0x160
[  296.125731]  ? lapic_next_event+0x5a/0x90
[  296.129890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.135462]  ? kvm_clock_read+0x18/0x30
[  296.139444]  ? kvm_sched_clock_read+0x9/0x20
[  296.143860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.149402]  ? check_preemption_disabled+0x48/0x280
[  296.154431]  irq_exit+0x17f/0x1c0
[  296.157890]  smp_apic_timer_interrupt+0x1cb/0x760
[  296.162742]  ? smp_call_function_single_interrupt+0x159/0x650
[  296.168636]  ? smp_call_function_single_interrupt+0x650/0x650
[  296.175053]  ? interrupt_entry+0xb5/0xc0
[  296.179128]  ? trace_hardirqs_off_caller+0xbb/0x310
[  296.184148]  ? trace_hardirqs_off_caller+0xbb/0x310
[  296.189177]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.194028]  ? trace_hardirqs_on_caller+0x310/0x310
[  296.199051]  ? trace_hardirqs_on_caller+0x310/0x310
[  296.204090]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.208955]  apic_timer_interrupt+0xf/0x20
[  296.213189]  </IRQ>
[  296.215433] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  296.220368] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  296.239282] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  296.247005] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  296.254286] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  296.261567] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  296.268851] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  296.276308] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  296.283825]  skb_clone+0x1bb/0x500
[  296.287605]  ? skb_split+0x11e0/0x11e0
[  296.291743]  ? check_preemption_disabled+0x48/0x280
[  296.296891]  ? __this_cpu_preempt_check+0x1c/0x20
[  296.301863]  ? __bpf_redirect+0x54b/0xb20
[  296.306228]  bpf_clone_redirect+0xb9/0x490
[  296.310772]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  296.315799]  ? __sched_text_start+0x8/0x8
[  296.320236]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  296.325220]  ? find_held_lock+0x36/0x1c0
[  296.329517]  ? lock_acquire+0x1ed/0x520
[  296.333499]  ? bpf_test_run+0x3cb/0x780
[  296.337852]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.343527]  ? check_preemption_disabled+0x48/0x280
[  296.348795]  ? kasan_check_read+0x11/0x20
[  296.353153]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.358998]  ? rcu_softirq_qs+0x20/0x20
[  296.363110]  ? preempt_schedule+0x4d/0x60
[  296.367268]  ? ___preempt_schedule+0x16/0x18
[  296.371935]  ? bpf_test_run+0x25d/0x780
[  296.376243]  ? netlink_diag_dump+0x2a0/0x2a0
[  296.380877]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  296.385643]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  296.390744]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  296.395605]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  296.401147]  ? fput+0x130/0x1a0
[  296.404429]  ? __bpf_prog_get+0x9b/0x290
[  296.408497]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  296.413343]  ? bpf_prog_test_run+0x130/0x1a0
[  296.417772]  ? __x64_sys_bpf+0x3d8/0x520
[  296.421987]  ? bpf_prog_get+0x20/0x20
[  296.426238]  ? do_syscall_64+0x1b9/0x820
[  296.430498]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  296.436660]  ? syscall_return_slowpath+0x5e0/0x5e0
[  296.441797]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.447094]  ? trace_hardirqs_on_caller+0x310/0x310
[  296.452729]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  296.458043]  ? prepare_exit_to_usermode+0x291/0x3b0
[  296.463300]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.468658]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  296.474461] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  296.474556] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  296.481709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  296.481718] Call Trace:
[  296.488894] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  296.498096]  <IRQ>
[  296.500667] syz-executor4 cpuset=syz4 mems_allowed=0
[  296.511156]  dump_stack+0x244/0x39d
[  296.521991]  ? dump_stack_print_info.cold.1+0x20/0x20
[  296.527209]  warn_alloc.cold.116+0xb7/0x1bd
[  296.531537]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  296.536386]  ? lock_downgrade+0x900/0x900
[  296.540543]  ? trace_hardirqs_off+0xb8/0x310
[  296.544970]  ? trace_hardirqs_off+0xb8/0x310
[  296.549389]  __alloc_pages_slowpath+0x26e8/0x2e10
[  296.554267]  ? warn_alloc+0x120/0x120
[  296.558081]  ? print_usage_bug+0xc0/0xc0
[  296.562146]  ? warn_alloc+0x120/0x120
[  296.565960]  ? warn_alloc+0x120/0x120
[  296.569779]  ? print_usage_bug+0xc0/0xc0
[  296.573847]  ? print_usage_bug+0xc0/0xc0
[  296.577914]  ? __lock_acquire+0x62f/0x4c20
[  296.582171]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.587711]  ? should_fail+0x22d/0xd01
[  296.591603]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  296.596709]  ? __lock_acquire+0x62f/0x4c20
[  296.600956]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  296.606063]  ? __lock_acquire+0x62f/0x4c20
[  296.610297]  ? should_fail+0x22d/0xd01
[  296.614187]  ? find_held_lock+0x36/0x1c0
[  296.618258]  ? mark_held_locks+0x130/0x130
[  296.622498]  ? mark_held_locks+0x130/0x130
[  296.626736]  ? zap_class+0x640/0x640
[  296.630452]  ? zap_class+0x640/0x640
[  296.634169]  ? print_usage_bug+0xc0/0xc0
[  296.638228]  ? do_raw_spin_unlock+0xa7/0x330
[  296.642639]  ? zap_class+0x640/0x640
[  296.646356]  ? print_usage_bug+0xc0/0xc0
[  296.650419]  ? wq_watchdog_touch+0x9c/0xfe
[  296.654667]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.660209]  ? check_preemption_disabled+0x48/0x280
[  296.665241]  ? __lock_is_held+0xb5/0x140
[  296.669315]  __alloc_pages_nodemask+0xa80/0xde0
[  296.673987]  ? zap_class+0x640/0x640
[  296.677706]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  296.682737]  ? find_held_lock+0x36/0x1c0
[  296.686814]  ? ____cache_alloc_node+0x1c7/0x1e0
[  296.691489]  ? lock_downgrade+0x900/0x900
[  296.695649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.701196]  cache_grow_begin+0xa5/0x8c0
[  296.705264]  ? do_raw_spin_unlock+0xa7/0x330
[  296.709685]  fallback_alloc+0x204/0x2e0
[  296.713666]  ____cache_alloc_node+0x1c7/0x1e0
[  296.718168]  kmem_cache_alloc_node+0xe3/0x730
[  296.722671]  ? ipv6_get_ifaddr+0x42e/0x620
[  296.726935]  __alloc_skb+0x119/0x770
[  296.730656]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.735948]  ? netdev_alloc_frag+0x1f0/0x1f0
[  296.740367]  ? lock_downgrade+0x900/0x900
[  296.744527]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.750441]  ? refcount_sub_and_test_checked+0x203/0x310
[  296.755898]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  296.761364]  ? addrconf_rs_timer+0x690/0x690
[  296.765793]  ndisc_alloc_skb+0x144/0x340
[  296.769861]  ndisc_send_rs+0x331/0x6e0
[  296.773757]  addrconf_rs_timer+0x314/0x690
[  296.778006]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.782259]  call_timer_fn+0x272/0x920
[  296.786149]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.790387]  ? process_timeout+0x40/0x40
[  296.794466]  ? mark_held_locks+0xc7/0x130
[  296.798619]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.803120]  ? _raw_spin_unlock_irq+0x27/0x80
[  296.807623]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.811886]  ? lockdep_hardirqs_on+0x296/0x5b0
[  296.816487]  ? trace_hardirqs_on+0xbd/0x310
[  296.820816]  ? kasan_check_read+0x11/0x20
[  296.824965]  ? __run_timers+0x7da/0xc70
[  296.828947]  ? trace_hardirqs_off_caller+0x310/0x310
[  296.834061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.838302]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  296.842537]  __run_timers+0x7e5/0xc70
[  296.846354]  ? timer_fixup_init+0x70/0x70
[  296.850508]  ? kasan_check_read+0x11/0x20
[  296.854660]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.859946]  ? rcu_softirq_qs+0x20/0x20
[  296.863938]  ? mark_held_locks+0xc7/0x130
[  296.868100]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  296.872862]  ? retint_kernel+0x2d/0x2d
[  296.876755]  ? trace_hardirqs_on_caller+0xc0/0x310
[  296.881690]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  296.886458]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  296.891927]  ? zap_class+0x640/0x640
[  296.895655]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.901203]  ? check_preemption_disabled+0x48/0x280
[  296.906234]  ? __lock_is_held+0xb5/0x140
[  296.910306]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.915851]  ? check_preemption_disabled+0x48/0x280
[  296.920878]  run_timer_softirq+0x52/0xb0
[  296.924950]  ? rcu_read_lock_sched_held+0x14f/0x180
[  296.929976]  __do_softirq+0x308/0xb7e
[  296.933785]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  296.938289]  ? lock_downgrade+0x900/0x900
[  296.942445]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  296.947561]  ? pvclock_read_flags+0x160/0x160
[  296.952064]  ? lapic_next_event+0x5a/0x90
[  296.956218]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.961769]  ? kvm_clock_read+0x18/0x30
[  296.965748]  ? kvm_sched_clock_read+0x9/0x20
[  296.970164]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.975704]  ? check_preemption_disabled+0x48/0x280
[  296.980736]  irq_exit+0x17f/0x1c0
[  296.984201]  smp_apic_timer_interrupt+0x1cb/0x760
[  296.989054]  ? smp_call_function_single_interrupt+0x650/0x650
[  296.994951]  ? interrupt_entry+0xb5/0xc0
[  296.999021]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.004051]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.009074]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.013930]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.018953]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.023995]  ? task_prio+0x50/0x50
[  297.027545]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.033090]  ? check_preemption_disabled+0x48/0x280
[  297.038118]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.042980]  apic_timer_interrupt+0xf/0x20
[  297.047209]  </IRQ>
[  297.049450] RIP: 0010:dump_stack+0x358/0x39d
[  297.053867] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  297.072786] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  297.080505] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  297.087777] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  297.095051] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  297.102320] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  297.109588] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  297.116885]  ? dump_stack+0x34f/0x39d
[  297.120704]  ? dump_stack_print_info.cold.1+0x20/0x20
[  297.125905]  ? mark_held_locks+0x130/0x130
[  297.130148]  ? mark_held_locks+0x130/0x130
[  297.134394]  dump_header+0x27b/0xf72
[  297.138128]  ? pagefault_out_of_memory+0x197/0x197
[  297.143078]  ? __lock_acquire+0x62f/0x4c20
[  297.147317]  ? percpu_ref_get_many+0x240/0x240
[  297.151906]  ? print_usage_bug+0xc0/0xc0
[  297.155986]  ? zap_class+0x640/0x640
[  297.159703]  ? print_usage_bug+0xc0/0xc0
[  297.163768]  ? print_usage_bug+0xc0/0xc0
[  297.167858]  ? zap_class+0x640/0x640
[  297.171582]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.177131]  ? find_held_lock+0x36/0x1c0
[  297.181202]  ? mark_held_locks+0xc7/0x130
[  297.185361]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  297.190471]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  297.195578]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  297.200169]  ? trace_hardirqs_on+0xbd/0x310
[  297.204495]  ? kasan_check_read+0x11/0x20
[  297.208649]  ? ___ratelimit+0x3b4/0x672
[  297.212632]  ? trace_hardirqs_off_caller+0x310/0x310
[  297.217740]  ? trace_hardirqs_on+0x310/0x310
[  297.222157]  ? lock_downgrade+0x900/0x900
[  297.226314]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  297.231421]  ? ___ratelimit+0x3b9/0x672
[  297.235397]  ? idr_get_free+0xf70/0xf70
[  297.239377]  ? find_held_lock+0x36/0x1c0
[  297.243449]  oom_kill_process.cold.27+0x10/0x903
[  297.248212]  ? zap_class+0x640/0x640
[  297.251937]  ? check_preemption_disabled+0x48/0x280
[  297.256968]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  297.261903]  ? kasan_check_read+0x11/0x20
[  297.266060]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.271339]  ? oom_evaluate_task+0x540/0x540
[  297.275769]  ? find_held_lock+0x36/0x1c0
[  297.279839]  ? out_of_memory+0x974/0x1430
[  297.283994]  ? lock_downgrade+0x900/0x900
[  297.288146]  ? check_preemption_disabled+0x48/0x280
[  297.293171]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  297.298105]  ? kasan_check_read+0x11/0x20
[  297.302254]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.307534]  ? rcu_softirq_qs+0x20/0x20
[  297.311519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.317065]  ? oom_evaluate_task+0x302/0x540
[  297.321482]  out_of_memory+0xa84/0x1430
[  297.325469]  ? oom_killer_disable+0x3a0/0x3a0
[  297.329966]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  297.334903]  ? __ww_mutex_check_waiters+0x160/0x160
[  297.339952]  __alloc_pages_slowpath+0x2354/0x2e10
[  297.344831]  ? warn_alloc+0x120/0x120
[  297.348655]  ? mark_held_locks+0x130/0x130
[  297.352913]  ? find_get_entry+0xaae/0x1120
[  297.357169]  ? filemap_map_pages+0x1a20/0x1a20
[  297.361767]  ? zap_class+0x640/0x640
[  297.365513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.371068]  ? check_preemption_disabled+0x48/0x280
[  297.376090]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.381635]  ? should_fail+0x22d/0xd01
[  297.385534]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  297.390642]  ? zap_class+0x640/0x640
[  297.394382]  ? __lock_is_held+0xb5/0x140
[  297.398458]  ? mark_held_locks+0x130/0x130
[  297.402701]  ? lock_release+0xa00/0xa00
[  297.406717]  ? perf_trace_sched_process_exec+0x860/0x860
[  297.412176]  ? xa_load+0x2ba/0x460
[  297.415720]  ? lock_downgrade+0x900/0x900
[  297.419876]  ? __might_sleep+0x95/0x190
[  297.423864]  __alloc_pages_nodemask+0xa80/0xde0
[  297.428546]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  297.433570]  ? __page_cache_alloc+0x191/0x5c0
[  297.438071]  ? xa_load+0x2e1/0x460
[  297.441619]  ? xa_clear_mark+0x40/0x40
[  297.445513]  ? zap_class+0x640/0x640
[  297.449243]  ? zap_class+0x640/0x640
[  297.452961]  ? zap_class+0x640/0x640
[  297.456683]  ? __do_page_cache_readahead+0x663/0x810
[  297.461796]  ? find_held_lock+0x36/0x1c0
[  297.465865]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  297.471415]  alloc_pages_current+0x173/0x350
[  297.475839]  __page_cache_alloc+0x38c/0x5c0
[  297.480164]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  297.485098]  ? kasan_check_read+0x11/0x20
[  297.489248]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.494533]  ? generic_perform_write+0x6a0/0x6a0
[  297.499294]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.504838]  ? check_preemption_disabled+0x48/0x280
[  297.509880]  filemap_fault+0x1595/0x25f0
[  297.513965]  ? __lock_page_or_retry+0xa00/0xa00
[  297.518640]  ? mark_held_locks+0x130/0x130
[  297.522885]  ? filemap_map_pages+0xd6b/0x1a20
[  297.527397]  ? lock_downgrade+0x900/0x900
[  297.531557]  ? check_preemption_disabled+0x48/0x280
[  297.536593]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  297.541539]  ? kasan_check_read+0x11/0x20
[  297.545696]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.550985]  ? rcu_softirq_qs+0x20/0x20
[  297.554985]  ? filemap_map_pages+0xd92/0x1a20
[  297.559500]  ? find_get_entries_tag+0x1400/0x1400
[  297.564346]  ? find_held_lock+0x36/0x1c0
[  297.568431]  ? lock_acquire+0x1ed/0x520
[  297.572417]  ? ext4_filemap_fault+0x7a/0xad
[  297.576746]  ? lock_release+0xa00/0xa00
[  297.580723]  ? perf_trace_sched_process_exec+0x860/0x860
[  297.586183]  ? print_usage_bug+0xc0/0xc0
[  297.590246]  ? print_usage_bug+0xc0/0xc0
[  297.594321]  ? down_read+0x8d/0x120
[  297.597952]  ? ext4_filemap_fault+0x7a/0xad
[  297.602277]  ? __down_interruptible+0x700/0x700
[  297.606971]  ext4_filemap_fault+0x82/0xad
[  297.611145]  __do_fault+0x100/0x6b0
[  297.614780]  ? find_held_lock+0x36/0x1c0
[  297.618845]  ? pmd_devmap_trans_unstable+0x220/0x220
[  297.623961]  ? mark_held_locks+0x130/0x130
[  297.628198]  ? mark_held_locks+0x130/0x130
[  297.632445]  ? kasan_check_read+0x11/0x20
[  297.636598]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.642149]  __handle_mm_fault+0x3ea0/0x5be0
[  297.646559]  ? perf_trace_lock+0x7a0/0x7a0
[  297.650822]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  297.655676]  ? __switch_to_asm+0x34/0x70
[  297.659743]  ? __switch_to_asm+0x34/0x70
[  297.663826]  ? zap_class+0x640/0x640
[  297.667539]  ? zap_class+0x640/0x640
[  297.671267]  ? __x64_sys_futex+0x53e/0x6a0
[  297.675509]  ? find_held_lock+0x36/0x1c0
[  297.679585]  ? handle_mm_fault+0x42a/0xc70
[  297.683822]  ? lock_downgrade+0x900/0x900
[  297.687977]  ? check_preemption_disabled+0x48/0x280
[  297.693000]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  297.697940]  ? kasan_check_read+0x11/0x20
[  297.702093]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.707369]  ? rcu_softirq_qs+0x20/0x20
[  297.711349]  ? trace_hardirqs_off_caller+0x310/0x310
[  297.716456]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.722003]  ? check_preemption_disabled+0x48/0x280
[  297.727039]  handle_mm_fault+0x54f/0xc70
[  297.731107]  ? __handle_mm_fault+0x5be0/0x5be0
[  297.735699]  ? find_vma+0x34/0x190
[  297.739248]  __do_page_fault+0x5e8/0xe60
[  297.743311]  ? trace_hardirqs_off+0xb8/0x310
[  297.747734]  do_page_fault+0xf2/0x7e0
[  297.751538]  ? vmalloc_sync_all+0x30/0x30
[  297.755689]  ? error_entry+0x70/0xd0
[  297.759405]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.764420]  ? trace_hardirqs_on_caller+0xc0/0x310
[  297.769352]  ? syscall_return_slowpath+0x5e0/0x5e0
[  297.774282]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.779217]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.784235]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  297.789695]  ? prepare_exit_to_usermode+0x291/0x3b0
[  297.794714]  ? page_fault+0x8/0x30
[  297.798263]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.803130]  ? page_fault+0x8/0x30
[  297.806673]  page_fault+0x1e/0x30
[  297.810132] RIP: 0033:0x44b69a
[  297.813344] Code: Bad RIP value.
[  297.816741] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  297.822102] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  297.829371] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  297.836640] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  297.843907] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  297.851185] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  297.858484] warn_alloc_show_mem: 1 callbacks suppressed
[  297.858496] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  297.858498] Mem-Info:
[  297.858531] active_anon:47227 inactive_anon:190 isolated_anon:0
[  297.858531]  active_file:11 inactive_file:14 isolated_file:0
[  297.858531]  unevictable:0 dirty:0 writeback:0 unstable:0
[  297.858531]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  297.858531]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  297.858531]  free:13756 free_pcp:235 free_cma:0
[  297.863883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  297.871081] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  297.873484] Call Trace:
[  297.906375] 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
[  297.915736]  <IRQ>
[  297.943221] lowmem_reserve[]: 0 2818 6321 6321
[  297.945833]  dump_stack+0x244/0x39d
[  297.971931] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  297.974102]  ? dump_stack_print_info.cold.1+0x20/0x20
[  297.978635] lowmem_reserve[]: 0 0 3503 3503
[  297.982284]  warn_alloc.cold.116+0xb7/0x1bd
[  298.009590] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  298.014796]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  298.019084] lowmem_reserve[]: 0 0 0 0
[  298.023410]  ? lock_downgrade+0x900/0x900
[  298.052299] 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
[  298.057157]  ? trace_hardirqs_off+0xb8/0x310
[  298.060931] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  298.065079]  ? trace_hardirqs_off+0xb8/0x310
[  298.078580] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  298.083000]  __alloc_pages_slowpath+0x26e8/0x2e10
[  298.098256] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  298.102690]  ? warn_alloc+0x120/0x120
[  298.117732] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  298.117741] 269 total pagecache pages
[  298.122592]  ? print_usage_bug+0xc0/0xc0
[  298.131415] 0 pages in swap cache
[  298.135224]  ? warn_alloc+0x120/0x120
[  298.143775] Swap cache stats: add 0, delete 0, find 0/0
[  298.143785] Free swap  = 0kB
[  298.147585]  ? warn_alloc+0x120/0x120
[  298.151617] Total swap = 0kB
[  298.155069]  ? print_usage_bug+0xc0/0xc0
[  298.158843] 1965979 pages RAM
[  298.164223]  ? kvm_clock_read+0x18/0x30
[  298.167216] 0 pages HighMem/MovableOnly
[  298.171019]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  298.174014] 342853 pages reserved
[  298.178076]  ? print_usage_bug+0xc0/0xc0
[  298.181157] 0 pages cma reserved
[  298.185134]  ? __lock_acquire+0x62f/0x4c20
[  298.189158] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  298.194093]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.194110]  ? should_fail+0x22d/0xd01
[  298.194127]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.197627] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  298.201626]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  298.204968] syz-fuzzer cpuset=/ mems_allowed=0
[  298.209202]  ? __lock_acquire+0x62f/0x4c20
[  298.254449]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  298.259568]  ? __lock_acquire+0x62f/0x4c20
[  298.263805]  ? should_fail+0x22d/0xd01
[  298.267696]  ? rcu_irq_exit+0x1a2/0x390
[  298.271690]  ? mark_held_locks+0x130/0x130
[  298.275942]  ? mark_held_locks+0x130/0x130
[  298.280184]  ? mark_held_locks+0xc7/0x130
[  298.284337]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  298.289354]  ? zap_class+0x640/0x640
[  298.293073]  ? print_usage_bug+0xc0/0xc0
[  298.297145]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.302689]  ? check_preemption_disabled+0x48/0x280
[  298.307733]  ? __lock_is_held+0xb5/0x140
[  298.311808]  __alloc_pages_nodemask+0xa80/0xde0
[  298.316482]  ? zap_class+0x640/0x640
[  298.320207]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  298.325246]  ? find_held_lock+0x36/0x1c0
[  298.329327]  ? ____cache_alloc_node+0x1c7/0x1e0
[  298.334000]  ? lock_downgrade+0x900/0x900
[  298.338159]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.343706]  cache_grow_begin+0xa5/0x8c0
[  298.347771]  ? do_raw_spin_unlock+0xa7/0x330
[  298.352194]  fallback_alloc+0x204/0x2e0
[  298.356179]  ____cache_alloc_node+0x1c7/0x1e0
[  298.360687]  kmem_cache_alloc_node+0xe3/0x730
[  298.365188]  ? ipv6_get_ifaddr+0x42e/0x620
[  298.369439]  __alloc_skb+0x119/0x770
[  298.373159]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.378445]  ? netdev_alloc_frag+0x1f0/0x1f0
[  298.382861]  ? lock_downgrade+0x900/0x900
[  298.387024]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.392573]  ? refcount_sub_and_test_checked+0x203/0x310
[  298.398034]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  298.403494]  ? addrconf_rs_timer+0x690/0x690
[  298.407941]  ndisc_alloc_skb+0x144/0x340
[  298.412020]  ndisc_send_rs+0x331/0x6e0
[  298.415928]  addrconf_rs_timer+0x314/0x690
[  298.420175]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.424427]  call_timer_fn+0x272/0x920
[  298.428317]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.432556]  ? process_timeout+0x40/0x40
[  298.436624]  ? __run_timers+0x7da/0xc70
[  298.440604]  ? _raw_spin_unlock_irq+0x27/0x80
[  298.445099]  ? _raw_spin_unlock_irq+0x27/0x80
[  298.449599]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.453839]  ? lockdep_hardirqs_on+0x296/0x5b0
[  298.458429]  ? trace_hardirqs_on+0xbd/0x310
[  298.462764]  ? kasan_check_read+0x11/0x20
[  298.466915]  ? __run_timers+0x7da/0xc70
[  298.470903]  ? trace_hardirqs_off_caller+0x310/0x310
[  298.476025]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.480267]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  298.484503]  __run_timers+0x7e5/0xc70
[  298.488407]  ? timer_fixup_init+0x70/0x70
[  298.492567]  ? lock_acquire+0x1ed/0x520
[  298.496550]  ? zap_class+0x640/0x640
[  298.500268]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.505816]  ? kasan_check_read+0x11/0x20
[  298.509971]  ? do_raw_spin_lock+0x14f/0x350
[  298.514303]  ? find_held_lock+0x36/0x1c0
[  298.518374]  ? zap_class+0x640/0x640
[  298.522095]  ? pvclock_read_flags+0x160/0x160
[  298.526598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.532142]  ? check_preemption_disabled+0x48/0x280
[  298.537179]  ? __lock_is_held+0xb5/0x140
[  298.541247]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.546790]  ? check_preemption_disabled+0x48/0x280
[  298.551829]  run_timer_softirq+0x52/0xb0
[  298.555896]  ? rcu_read_lock_sched_held+0x14f/0x180
[  298.560932]  __do_softirq+0x308/0xb7e
[  298.564745]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  298.569259]  ? lock_downgrade+0x900/0x900
[  298.573415]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  298.578534]  ? pvclock_read_flags+0x160/0x160
[  298.583049]  ? lapic_next_event+0x5a/0x90
[  298.587218]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.592778]  ? kvm_clock_read+0x18/0x30
[  298.596757]  ? kvm_sched_clock_read+0x9/0x20
[  298.601175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.606719]  ? check_preemption_disabled+0x48/0x280
[  298.611751]  irq_exit+0x17f/0x1c0
[  298.615211]  smp_apic_timer_interrupt+0x1cb/0x760
[  298.620059]  ? smp_call_function_single_interrupt+0x159/0x650
[  298.625976]  ? smp_call_function_single_interrupt+0x650/0x650
[  298.631864]  ? interrupt_entry+0xb5/0xc0
[  298.635944]  ? trace_hardirqs_off_caller+0xbb/0x310
[  298.640968]  ? trace_hardirqs_off_caller+0xbb/0x310
[  298.646015]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.650879]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.655904]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.660972]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.665831]  apic_timer_interrupt+0xf/0x20
[  298.670063]  </IRQ>
[  298.672329] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  298.677265] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  298.696178] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  298.703898] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  298.711179] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  298.718454] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  298.725730] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  298.733006] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  298.740329]  skb_clone+0x1bb/0x500
[  298.743890]  ? skb_split+0x11e0/0x11e0
[  298.747805]  ? check_preemption_disabled+0x48/0x280
[  298.752859]  ? __this_cpu_preempt_check+0x1c/0x20
[  298.757704]  ? __bpf_redirect+0x54b/0xb20
[  298.761862]  bpf_clone_redirect+0xb9/0x490
[  298.766119]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  298.771145]  ? __sched_text_start+0x8/0x8
[  298.775298]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  298.780076]  ? find_held_lock+0x36/0x1c0
[  298.784154]  ? lock_acquire+0x1ed/0x520
[  298.788134]  ? bpf_test_run+0x3cb/0x780
[  298.792114]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.797655]  ? check_preemption_disabled+0x48/0x280
[  298.802681]  ? kasan_check_read+0x11/0x20
[  298.806834]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.812114]  ? rcu_softirq_qs+0x20/0x20
[  298.816097]  ? preempt_schedule+0x4d/0x60
[  298.820253]  ? ___preempt_schedule+0x16/0x18
[  298.824679]  ? bpf_test_run+0x25d/0x780
[  298.828667]  ? netlink_diag_dump+0x2a0/0x2a0
[  298.833084]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  298.837846]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  298.842615]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  298.847461]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  298.853003]  ? fput+0x130/0x1a0
[  298.856284]  ? __bpf_prog_get+0x9b/0x290
[  298.860353]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  298.865195]  ? bpf_prog_test_run+0x130/0x1a0
[  298.869612]  ? __x64_sys_bpf+0x3d8/0x520
[  298.873673]  ? bpf_prog_get+0x20/0x20
[  298.877519]  ? do_syscall_64+0x1b9/0x820
[  298.881594]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  298.886969]  ? syscall_return_slowpath+0x5e0/0x5e0
[  298.891900]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.896755]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.901783]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  298.906803]  ? prepare_exit_to_usermode+0x291/0x3b0
[  298.911836]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.916691]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  298.922095] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  298.922184] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  298.929045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  298.935675] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  298.944871] Call Trace:
[  298.955351] syz-executor4 cpuset=syz4 mems_allowed=0
[  298.957930]  <IRQ>
[  298.965186]  dump_stack+0x244/0x39d
[  298.968824]  ? dump_stack_print_info.cold.1+0x20/0x20
[  298.974039]  warn_alloc.cold.116+0xb7/0x1bd
[  298.978369]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  298.983222]  ? lock_downgrade+0x900/0x900
[  298.987379]  ? trace_hardirqs_off+0xb8/0x310
[  298.991796]  ? trace_hardirqs_off+0xb8/0x310
[  298.996216]  __alloc_pages_slowpath+0x26e8/0x2e10
[  299.001089]  ? warn_alloc+0x120/0x120
[  299.004895]  ? print_usage_bug+0xc0/0xc0
[  299.008961]  ? warn_alloc+0x120/0x120
[  299.012767]  ? warn_alloc+0x120/0x120
[  299.016573]  ? print_usage_bug+0xc0/0xc0
[  299.020650]  ? print_usage_bug+0xc0/0xc0
[  299.024728]  ? __lock_acquire+0x62f/0x4c20
[  299.028998]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.034547]  ? should_fail+0x22d/0xd01
[  299.038439]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  299.043582]  ? __lock_acquire+0x62f/0x4c20
[  299.047825]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  299.052939]  ? __lock_acquire+0x62f/0x4c20
[  299.057177]  ? should_fail+0x22d/0xd01
[  299.061068]  ? find_held_lock+0x36/0x1c0
[  299.065140]  ? mark_held_locks+0x130/0x130
[  299.069385]  ? mark_held_locks+0x130/0x130
[  299.073624]  ? zap_class+0x640/0x640
[  299.077340]  ? zap_class+0x640/0x640
[  299.081066]  ? print_usage_bug+0xc0/0xc0
[  299.085136]  ? do_raw_spin_unlock+0xa7/0x330
[  299.089547]  ? zap_class+0x640/0x640
[  299.093264]  ? print_usage_bug+0xc0/0xc0
[  299.097328]  ? wq_watchdog_touch+0x9c/0xfe
[  299.101573]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.107116]  ? check_preemption_disabled+0x48/0x280
[  299.112143]  ? __lock_is_held+0xb5/0x140
[  299.116213]  __alloc_pages_nodemask+0xa80/0xde0
[  299.120886]  ? zap_class+0x640/0x640
[  299.124608]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  299.129637]  ? find_held_lock+0x36/0x1c0
[  299.133711]  ? ____cache_alloc_node+0x1c7/0x1e0
[  299.138385]  ? lock_downgrade+0x900/0x900
[  299.142542]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.148092]  cache_grow_begin+0xa5/0x8c0
[  299.152154]  ? do_raw_spin_unlock+0xa7/0x330
[  299.156572]  fallback_alloc+0x204/0x2e0
[  299.160553]  ____cache_alloc_node+0x1c7/0x1e0
[  299.165061]  kmem_cache_alloc_node+0xe3/0x730
[  299.169566]  ? ipv6_get_ifaddr+0x42e/0x620
[  299.173814]  __alloc_skb+0x119/0x770
[  299.177532]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.182815]  ? netdev_alloc_frag+0x1f0/0x1f0
[  299.187227]  ? lock_downgrade+0x900/0x900
[  299.191384]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.196941]  ? refcount_sub_and_test_checked+0x203/0x310
[  299.202401]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  299.207855]  ? addrconf_rs_timer+0x690/0x690
[  299.212279]  ndisc_alloc_skb+0x144/0x340
[  299.216355]  ndisc_send_rs+0x331/0x6e0
[  299.220251]  addrconf_rs_timer+0x314/0x690
[  299.224493]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.228739]  call_timer_fn+0x272/0x920
[  299.232631]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.236870]  ? process_timeout+0x40/0x40
[  299.240955]  ? mark_held_locks+0xc7/0x130
[  299.245113]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.249635]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.254151]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.258392]  ? lockdep_hardirqs_on+0x296/0x5b0
[  299.262977]  ? trace_hardirqs_on+0xbd/0x310
[  299.267303]  ? kasan_check_read+0x11/0x20
[  299.271450]  ? __run_timers+0x7da/0xc70
[  299.275426]  ? trace_hardirqs_off_caller+0x310/0x310
[  299.280536]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.284782]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.289020]  __run_timers+0x7e5/0xc70
[  299.292838]  ? timer_fixup_init+0x70/0x70
[  299.296990]  ? kasan_check_read+0x11/0x20
[  299.301143]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.306419]  ? rcu_softirq_qs+0x20/0x20
[  299.310406]  ? mark_held_locks+0xc7/0x130
[  299.314574]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  299.319336]  ? retint_kernel+0x2d/0x2d
[  299.323226]  ? trace_hardirqs_on_caller+0xc0/0x310
[  299.328160]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  299.332920]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  299.338391]  ? zap_class+0x640/0x640
[  299.342116]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.347655]  ? check_preemption_disabled+0x48/0x280
[  299.352683]  ? __lock_is_held+0xb5/0x140
[  299.356747]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.362290]  ? check_preemption_disabled+0x48/0x280
[  299.367318]  run_timer_softirq+0x52/0xb0
[  299.371397]  ? rcu_read_lock_sched_held+0x14f/0x180
[  299.376417]  __do_softirq+0x308/0xb7e
[  299.380227]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  299.384732]  ? lock_downgrade+0x900/0x900
[  299.388884]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  299.394000]  ? pvclock_read_flags+0x160/0x160
[  299.398510]  ? lapic_next_event+0x5a/0x90
[  299.402663]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.408208]  ? kvm_clock_read+0x18/0x30
[  299.412187]  ? kvm_sched_clock_read+0x9/0x20
[  299.416601]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.422142]  ? check_preemption_disabled+0x48/0x280
[  299.427169]  irq_exit+0x17f/0x1c0
[  299.430641]  smp_apic_timer_interrupt+0x1cb/0x760
[  299.435485]  ? smp_call_function_single_interrupt+0x650/0x650
[  299.441372]  ? interrupt_entry+0xb5/0xc0
[  299.445442]  ? trace_hardirqs_off_caller+0xbb/0x310
[  299.450462]  ? trace_hardirqs_off_caller+0xbb/0x310
[  299.455482]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  299.460328]  ? trace_hardirqs_on_caller+0x310/0x310
[  299.465347]  ? trace_hardirqs_on_caller+0x310/0x310
[  299.470368]  ? task_prio+0x50/0x50
[  299.473911]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.479462]  ? check_preemption_disabled+0x48/0x280
[  299.484487]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  299.489341]  apic_timer_interrupt+0xf/0x20
[  299.493575]  </IRQ>
[  299.495824] RIP: 0010:dump_stack+0x358/0x39d
[  299.500247] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  299.519200] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  299.526915] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  299.534198] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  299.541467] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  299.548740] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  299.556010] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  299.563313]  ? dump_stack+0x34f/0x39d
[  299.567136]  ? dump_stack_print_info.cold.1+0x20/0x20
[  299.572339]  ? mark_held_locks+0x130/0x130
[  299.576573]  ? mark_held_locks+0x130/0x130
[  299.580824]  dump_header+0x27b/0xf72
[  299.584551]  ? pagefault_out_of_memory+0x197/0x197
[  299.589493]  ? __lock_acquire+0x62f/0x4c20
[  299.593734]  ? percpu_ref_get_many+0x240/0x240
[  299.598324]  ? print_usage_bug+0xc0/0xc0
[  299.602397]  ? zap_class+0x640/0x640
[  299.606115]  ? print_usage_bug+0xc0/0xc0
[  299.610181]  ? print_usage_bug+0xc0/0xc0
[  299.614248]  ? zap_class+0x640/0x640
[  299.617971]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.623520]  ? find_held_lock+0x36/0x1c0
[  299.627594]  ? mark_held_locks+0xc7/0x130
[  299.631745]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  299.636849]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  299.641977]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  299.646565]  ? trace_hardirqs_on+0xbd/0x310
[  299.650889]  ? kasan_check_read+0x11/0x20
[  299.655057]  ? ___ratelimit+0x3b4/0x672
[  299.659044]  ? trace_hardirqs_off_caller+0x310/0x310
[  299.664151]  ? trace_hardirqs_on+0x310/0x310
[  299.668577]  ? lock_downgrade+0x900/0x900
[  299.672739]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  299.677849]  ? ___ratelimit+0x3b9/0x672
[  299.681833]  ? idr_get_free+0xf70/0xf70
[  299.685813]  ? find_held_lock+0x36/0x1c0
[  299.689893]  oom_kill_process.cold.27+0x10/0x903
[  299.694658]  ? zap_class+0x640/0x640
[  299.698375]  ? check_preemption_disabled+0x48/0x280
[  299.703394]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  299.708326]  ? kasan_check_read+0x11/0x20
[  299.712482]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.717765]  ? oom_evaluate_task+0x540/0x540
[  299.722179]  ? find_held_lock+0x36/0x1c0
[  299.726252]  ? out_of_memory+0x974/0x1430
[  299.730404]  ? lock_downgrade+0x900/0x900
[  299.734555]  ? check_preemption_disabled+0x48/0x280
[  299.739576]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  299.744509]  ? kasan_check_read+0x11/0x20
[  299.748657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.753946]  ? rcu_softirq_qs+0x20/0x20
[  299.757943]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.763498]  ? oom_evaluate_task+0x302/0x540
[  299.767932]  out_of_memory+0xa84/0x1430
[  299.771917]  ? oom_killer_disable+0x3a0/0x3a0
[  299.776424]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  299.781366]  ? __ww_mutex_check_waiters+0x160/0x160
[  299.786402]  __alloc_pages_slowpath+0x2354/0x2e10
[  299.791276]  ? warn_alloc+0x120/0x120
[  299.795081]  ? mark_held_locks+0x130/0x130
[  299.799328]  ? find_get_entry+0xaae/0x1120
[  299.803574]  ? filemap_map_pages+0x1a20/0x1a20
[  299.808164]  ? zap_class+0x640/0x640
[  299.811888]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.817429]  ? check_preemption_disabled+0x48/0x280
[  299.822448]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.827991]  ? should_fail+0x22d/0xd01
[  299.831893]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  299.837009]  ? zap_class+0x640/0x640
[  299.840755]  ? __lock_is_held+0xb5/0x140
[  299.844830]  ? mark_held_locks+0x130/0x130
[  299.849077]  ? lock_release+0xa00/0xa00
[  299.853057]  ? perf_trace_sched_process_exec+0x860/0x860
[  299.858510]  ? xa_load+0x2ba/0x460
[  299.862060]  ? lock_downgrade+0x900/0x900
[  299.866221]  ? __might_sleep+0x95/0x190
[  299.870207]  __alloc_pages_nodemask+0xa80/0xde0
[  299.874889]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  299.879940]  ? __page_cache_alloc+0x191/0x5c0
[  299.884589]  ? xa_load+0x2e1/0x460
[  299.888135]  ? xa_clear_mark+0x40/0x40
[  299.892036]  ? zap_class+0x640/0x640
[  299.895759]  ? zap_class+0x640/0x640
[  299.899477]  ? zap_class+0x640/0x640
[  299.903196]  ? __do_page_cache_readahead+0x663/0x810
[  299.908308]  ? find_held_lock+0x36/0x1c0
[  299.912378]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  299.917936]  alloc_pages_current+0x173/0x350
[  299.922361]  __page_cache_alloc+0x38c/0x5c0
[  299.926683]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  299.931618]  ? kasan_check_read+0x11/0x20
[  299.935773]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.941068]  ? generic_perform_write+0x6a0/0x6a0
[  299.945831]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.951372]  ? check_preemption_disabled+0x48/0x280
[  299.956410]  filemap_fault+0x1595/0x25f0
[  299.960507]  ? __lock_page_or_retry+0xa00/0xa00
[  299.965190]  ? mark_held_locks+0x130/0x130
[  299.969439]  ? filemap_map_pages+0xd6b/0x1a20
[  299.973957]  ? lock_downgrade+0x900/0x900
[  299.978112]  ? check_preemption_disabled+0x48/0x280
[  299.983133]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  299.988065]  ? kasan_check_read+0x11/0x20
[  299.992213]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.997495]  ? rcu_softirq_qs+0x20/0x20
[  300.001494]  ? filemap_map_pages+0xd92/0x1a20
[  300.006006]  ? find_get_entries_tag+0x1400/0x1400
[  300.010854]  ? find_held_lock+0x36/0x1c0
[  300.014947]  ? lock_acquire+0x1ed/0x520
[  300.018935]  ? ext4_filemap_fault+0x7a/0xad
[  300.023270]  ? lock_release+0xa00/0xa00
[  300.027246]  ? perf_trace_sched_process_exec+0x860/0x860
[  300.032700]  ? print_usage_bug+0xc0/0xc0
[  300.036769]  ? print_usage_bug+0xc0/0xc0
[  300.040856]  ? down_read+0x8d/0x120
[  300.044492]  ? ext4_filemap_fault+0x7a/0xad
[  300.048842]  ? __down_interruptible+0x700/0x700
[  300.053536]  ext4_filemap_fault+0x82/0xad
[  300.057693]  __do_fault+0x100/0x6b0
[  300.061329]  ? find_held_lock+0x36/0x1c0
[  300.065411]  ? pmd_devmap_trans_unstable+0x220/0x220
[  300.070534]  ? mark_held_locks+0x130/0x130
[  300.074780]  ? mark_held_locks+0x130/0x130
[  300.079043]  ? kasan_check_read+0x11/0x20
[  300.083202]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.088749]  __handle_mm_fault+0x3ea0/0x5be0
[  300.093161]  ? perf_trace_lock+0x7a0/0x7a0
[  300.097406]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  300.102262]  ? __switch_to_asm+0x34/0x70
[  300.106326]  ? __switch_to_asm+0x34/0x70
[  300.110408]  ? zap_class+0x640/0x640
[  300.114125]  ? zap_class+0x640/0x640
[  300.117843]  ? __x64_sys_futex+0x53e/0x6a0
[  300.122086]  ? find_held_lock+0x36/0x1c0
[  300.126163]  ? handle_mm_fault+0x42a/0xc70
[  300.130403]  ? lock_downgrade+0x900/0x900
[  300.134558]  ? check_preemption_disabled+0x48/0x280
[  300.139580]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  300.144520]  ? kasan_check_read+0x11/0x20
[  300.148668]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.153955]  ? rcu_softirq_qs+0x20/0x20
[  300.157939]  ? trace_hardirqs_off_caller+0x310/0x310
[  300.163052]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.168598]  ? check_preemption_disabled+0x48/0x280
[  300.173626]  handle_mm_fault+0x54f/0xc70
[  300.177696]  ? __handle_mm_fault+0x5be0/0x5be0
[  300.182289]  ? find_vma+0x34/0x190
[  300.185835]  __do_page_fault+0x5e8/0xe60
[  300.189897]  ? trace_hardirqs_off+0xb8/0x310
[  300.194324]  do_page_fault+0xf2/0x7e0
[  300.198130]  ? vmalloc_sync_all+0x30/0x30
[  300.202280]  ? error_entry+0x70/0xd0
[  300.205999]  ? trace_hardirqs_off_caller+0xbb/0x310
[  300.211020]  ? trace_hardirqs_on_caller+0xc0/0x310
[  300.215965]  ? syscall_return_slowpath+0x5e0/0x5e0
[  300.220893]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.225751]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.230773]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  300.236231]  ? prepare_exit_to_usermode+0x291/0x3b0
[  300.241251]  ? page_fault+0x8/0x30
[  300.244794]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.249641]  ? page_fault+0x8/0x30
[  300.253191]  page_fault+0x1e/0x30
[  300.256648] RIP: 0033:0x44b69a
[  300.259859] Code: Bad RIP value.
[  300.263224] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  300.268587] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  300.275858] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  300.283127] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  300.290396] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  300.297665] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  300.304975] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  300.304981] warn_alloc_show_mem: 1 callbacks suppressed
[  300.304988] Mem-Info:
[  300.312199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  300.317584] active_anon:47227 inactive_anon:190 isolated_anon:0
[  300.317584]  active_file:11 inactive_file:14 isolated_file:0
[  300.317584]  unevictable:0 dirty:0 writeback:0 unstable:0
[  300.317584]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  300.317584]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  300.317584]  free:13756 free_pcp:235 free_cma:0
[  300.319957] Call Trace:
[  300.329353] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  300.362219]  <IRQ>
[  300.364798] 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
[  300.392321]  dump_stack+0x244/0x39d
[  300.394447] lowmem_reserve[]: 0 2818 6321 6321
[  300.420583]  ? dump_stack_print_info.cold.1+0x20/0x20
[  300.424199] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  300.428800]  warn_alloc.cold.116+0xb7/0x1bd
[  300.433983] lowmem_reserve[]: 0 0 3503 3503
[  300.461338]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  300.465639] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  300.469969]  ? lock_downgrade+0x900/0x900
[  300.474770] lowmem_reserve[]: 0 0 0 0
[  300.503691]  ? trace_hardirqs_off+0xb8/0x310
[  300.507818] 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
[  300.511625]  ? trace_hardirqs_off+0xb8/0x310
[  300.516002] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  300.529548]  __alloc_pages_slowpath+0x26e8/0x2e10
[  300.533933] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  300.549230]  ? warn_alloc+0x120/0x120
[  300.554037] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  300.569119]  ? print_usage_bug+0xc0/0xc0
[  300.572895] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  300.581737]  ? warn_alloc+0x120/0x120
[  300.585770] 269 total pagecache pages
[  300.594347]  ? warn_alloc+0x120/0x120
[  300.598125] 0 pages in swap cache
[  300.601915]  ? print_usage_bug+0xc0/0xc0
[  300.605701] Swap cache stats: add 0, delete 0, find 0/0
[  300.605710] Free swap  = 0kB
[  300.609160]  ? kvm_clock_read+0x18/0x30
[  300.613191] Total swap = 0kB
[  300.618557]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  300.621636] 1965979 pages RAM
[  300.625607]  ? print_usage_bug+0xc0/0xc0
[  300.628597] 0 pages HighMem/MovableOnly
[  300.628606] 342853 pages reserved
[  300.633614]  ? __lock_acquire+0x62f/0x4c20
[  300.636698] 0 pages cma reserved
[  300.640758]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.644782] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  300.648152]  ? should_fail+0x22d/0xd01
[  300.652467] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  300.655723]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.661234] syz-fuzzer cpuset=/ mems_allowed=0
[  300.667727]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  300.696735]  ? __lock_acquire+0x62f/0x4c20
[  300.700982]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  300.706089]  ? __lock_acquire+0x62f/0x4c20
[  300.710327]  ? should_fail+0x22d/0xd01
[  300.714213]  ? rcu_irq_exit+0x1a2/0x390
[  300.718199]  ? mark_held_locks+0x130/0x130
[  300.722440]  ? mark_held_locks+0x130/0x130
[  300.726682]  ? mark_held_locks+0xc7/0x130
[  300.730835]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  300.735855]  ? zap_class+0x640/0x640
[  300.739574]  ? print_usage_bug+0xc0/0xc0
[  300.743644]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.749187]  ? check_preemption_disabled+0x48/0x280
[  300.754396]  ? __lock_is_held+0xb5/0x140
[  300.758469]  __alloc_pages_nodemask+0xa80/0xde0
[  300.763141]  ? zap_class+0x640/0x640
[  300.766861]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  300.771889]  ? find_held_lock+0x36/0x1c0
[  300.775975]  ? ____cache_alloc_node+0x1c7/0x1e0
[  300.780646]  ? lock_downgrade+0x900/0x900
[  300.784808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.790359]  cache_grow_begin+0xa5/0x8c0
[  300.794424]  ? do_raw_spin_unlock+0xa7/0x330
[  300.798844]  fallback_alloc+0x204/0x2e0
[  300.802829]  ____cache_alloc_node+0x1c7/0x1e0
[  300.807333]  kmem_cache_alloc_node+0xe3/0x730
[  300.811832]  ? ipv6_get_ifaddr+0x42e/0x620
[  300.816083]  __alloc_skb+0x119/0x770
[  300.819801]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.825090]  ? netdev_alloc_frag+0x1f0/0x1f0
[  300.829503]  ? lock_downgrade+0x900/0x900
[  300.833681]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.839226]  ? refcount_sub_and_test_checked+0x203/0x310
[  300.844683]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  300.850143]  ? addrconf_rs_timer+0x690/0x690
[  300.854568]  ndisc_alloc_skb+0x144/0x340
[  300.858637]  ndisc_send_rs+0x331/0x6e0
[  300.862542]  addrconf_rs_timer+0x314/0x690
[  300.866783]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.871036]  call_timer_fn+0x272/0x920
[  300.874936]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.879172]  ? process_timeout+0x40/0x40
[  300.883244]  ? __run_timers+0x7da/0xc70
[  300.887222]  ? _raw_spin_unlock_irq+0x27/0x80
[  300.891716]  ? _raw_spin_unlock_irq+0x27/0x80
[  300.896211]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.900451]  ? lockdep_hardirqs_on+0x296/0x5b0
[  300.905040]  ? trace_hardirqs_on+0xbd/0x310
[  300.909365]  ? kasan_check_read+0x11/0x20
[  300.913513]  ? __run_timers+0x7da/0xc70
[  300.917494]  ? trace_hardirqs_off_caller+0x310/0x310
[  300.922609]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.926853]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.931093]  __run_timers+0x7e5/0xc70
[  300.934908]  ? timer_fixup_init+0x70/0x70
[  300.939081]  ? lock_acquire+0x1ed/0x520
[  300.943065]  ? zap_class+0x640/0x640
[  300.946787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.952334]  ? kasan_check_read+0x11/0x20
[  300.956486]  ? do_raw_spin_lock+0x14f/0x350
[  300.960822]  ? find_held_lock+0x36/0x1c0
[  300.964892]  ? zap_class+0x640/0x640
[  300.968623]  ? pvclock_read_flags+0x160/0x160
[  300.973122]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.978673]  ? check_preemption_disabled+0x48/0x280
[  300.983704]  ? __lock_is_held+0xb5/0x140
[  300.987770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.993312]  ? check_preemption_disabled+0x48/0x280
[  300.998349]  run_timer_softirq+0x52/0xb0
[  301.002412]  ? rcu_read_lock_sched_held+0x14f/0x180
[  301.007441]  __do_softirq+0x308/0xb7e
[  301.011252]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  301.015754]  ? lock_downgrade+0x900/0x900
[  301.019912]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  301.025038]  ? pvclock_read_flags+0x160/0x160
[  301.029544]  ? lapic_next_event+0x5a/0x90
[  301.033698]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.039251]  ? kvm_clock_read+0x18/0x30
[  301.043227]  ? kvm_sched_clock_read+0x9/0x20
[  301.047640]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.053186]  ? check_preemption_disabled+0x48/0x280
[  301.058216]  irq_exit+0x17f/0x1c0
[  301.061676]  smp_apic_timer_interrupt+0x1cb/0x760
[  301.066531]  ? smp_call_function_single_interrupt+0x159/0x650
[  301.072420]  ? smp_call_function_single_interrupt+0x650/0x650
[  301.078310]  ? interrupt_entry+0xb5/0xc0
[  301.082377]  ? trace_hardirqs_off_caller+0xbb/0x310
[  301.087394]  ? trace_hardirqs_off_caller+0xbb/0x310
[  301.092418]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.097264]  ? trace_hardirqs_on_caller+0x310/0x310
[  301.102280]  ? trace_hardirqs_on_caller+0x310/0x310
[  301.107312]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.112167]  apic_timer_interrupt+0xf/0x20
[  301.116397]  </IRQ>
[  301.118638] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  301.123572] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  301.142480] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  301.150195] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  301.157468] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  301.164740] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  301.172014] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  301.179286] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  301.186627]  skb_clone+0x1bb/0x500
[  301.190178]  ? skb_split+0x11e0/0x11e0
[  301.194071]  ? check_preemption_disabled+0x48/0x280
[  301.199112]  ? __this_cpu_preempt_check+0x1c/0x20
[  301.203977]  ? __bpf_redirect+0x54b/0xb20
[  301.208146]  bpf_clone_redirect+0xb9/0x490
[  301.212395]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  301.217431]  ? __sched_text_start+0x8/0x8
[  301.221590]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  301.226375]  ? find_held_lock+0x36/0x1c0
[  301.230451]  ? lock_acquire+0x1ed/0x520
[  301.234433]  ? bpf_test_run+0x3cb/0x780
[  301.238412]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.243962]  ? check_preemption_disabled+0x48/0x280
[  301.248993]  ? kasan_check_read+0x11/0x20
[  301.253154]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.258431]  ? rcu_softirq_qs+0x20/0x20
[  301.262410]  ? preempt_schedule+0x4d/0x60
[  301.266564]  ? ___preempt_schedule+0x16/0x18
[  301.270984]  ? bpf_test_run+0x25d/0x780
[  301.274978]  ? netlink_diag_dump+0x2a0/0x2a0
[  301.279393]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  301.284155]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  301.288921]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  301.293777]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  301.299319]  ? fput+0x130/0x1a0
[  301.302604]  ? __bpf_prog_get+0x9b/0x290
[  301.306670]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  301.311523]  ? bpf_prog_test_run+0x130/0x1a0
[  301.315954]  ? __x64_sys_bpf+0x3d8/0x520
[  301.320021]  ? bpf_prog_get+0x20/0x20
[  301.323845]  ? do_syscall_64+0x1b9/0x820
[  301.327912]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  301.333290]  ? syscall_return_slowpath+0x5e0/0x5e0
[  301.338222]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.343085]  ? trace_hardirqs_on_caller+0x310/0x310
[  301.348129]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  301.353157]  ? prepare_exit_to_usermode+0x291/0x3b0
[  301.358182]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.363036]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  301.368529] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  301.368622] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  301.375561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  301.375566] Call Trace:
[  301.375574]  <IRQ>
[  301.375594]  dump_stack+0x244/0x39d
[  301.375612]  ? dump_stack_print_info.cold.1+0x20/0x20
[  301.375639]  warn_alloc.cold.116+0xb7/0x1bd
[  301.382211] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  301.391466]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  301.394032] syz-executor4 cpuset=syz4 mems_allowed=0
[  301.396194]  ? lock_downgrade+0x900/0x900
[  301.433818]  ? trace_hardirqs_off+0xb8/0x310
[  301.438247]  ? trace_hardirqs_off+0xb8/0x310
[  301.442669]  __alloc_pages_slowpath+0x26e8/0x2e10
[  301.447560]  ? warn_alloc+0x120/0x120
[  301.451367]  ? print_usage_bug+0xc0/0xc0
[  301.455432]  ? warn_alloc+0x120/0x120
[  301.459237]  ? warn_alloc+0x120/0x120
[  301.463044]  ? print_usage_bug+0xc0/0xc0
[  301.467113]  ? kvm_clock_read+0x18/0x30
[  301.471093]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  301.476115]  ? print_usage_bug+0xc0/0xc0
[  301.480180]  ? __lock_acquire+0x62f/0x4c20
[  301.484433]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.489993]  ? should_fail+0x22d/0xd01
[  301.493897]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.499185]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  301.504292]  ? __lock_acquire+0x62f/0x4c20
[  301.508530]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  301.513636]  ? __lock_acquire+0x62f/0x4c20
[  301.517883]  ? should_fail+0x22d/0xd01
[  301.521767]  ? rcu_irq_exit+0x1a2/0x390
[  301.525754]  ? mark_held_locks+0x130/0x130
[  301.529998]  ? mark_held_locks+0x130/0x130
[  301.534246]  ? mark_held_locks+0xc7/0x130
[  301.538396]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  301.543416]  ? zap_class+0x640/0x640
[  301.547130]  ? print_usage_bug+0xc0/0xc0
[  301.551202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.556745]  ? check_preemption_disabled+0x48/0x280
[  301.561774]  ? __lock_is_held+0xb5/0x140
[  301.565847]  __alloc_pages_nodemask+0xa80/0xde0
[  301.570518]  ? zap_class+0x640/0x640
[  301.574239]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  301.579283]  ? find_held_lock+0x36/0x1c0
[  301.583364]  ? ____cache_alloc_node+0x1c7/0x1e0
[  301.588040]  ? lock_downgrade+0x900/0x900
[  301.592197]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.597743]  cache_grow_begin+0xa5/0x8c0
[  301.601816]  ? do_raw_spin_unlock+0xa7/0x330
[  301.606234]  fallback_alloc+0x204/0x2e0
[  301.610218]  ____cache_alloc_node+0x1c7/0x1e0
[  301.614722]  kmem_cache_alloc_node+0xe3/0x730
[  301.619221]  ? ipv6_get_ifaddr+0x42e/0x620
[  301.623469]  __alloc_skb+0x119/0x770
[  301.627185]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.632465]  ? netdev_alloc_frag+0x1f0/0x1f0
[  301.636875]  ? lock_downgrade+0x900/0x900
[  301.641043]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.646588]  ? refcount_sub_and_test_checked+0x203/0x310
[  301.652050]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  301.657506]  ? addrconf_rs_timer+0x690/0x690
[  301.661940]  ndisc_alloc_skb+0x144/0x340
[  301.666009]  ndisc_send_rs+0x331/0x6e0
[  301.669908]  addrconf_rs_timer+0x314/0x690
[  301.674166]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.678412]  call_timer_fn+0x272/0x920
[  301.682306]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.686544]  ? process_timeout+0x40/0x40
[  301.690618]  ? mark_held_locks+0xc7/0x130
[  301.694769]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.699263]  ? _raw_spin_unlock_irq+0x27/0x80
[  301.703759]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.707998]  ? lockdep_hardirqs_on+0x296/0x5b0
[  301.712589]  ? trace_hardirqs_on+0xbd/0x310
[  301.716912]  ? kasan_check_read+0x11/0x20
[  301.721069]  ? __run_timers+0x7da/0xc70
[  301.725051]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.730164]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.734405]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  301.738639]  __run_timers+0x7e5/0xc70
[  301.742450]  ? timer_fixup_init+0x70/0x70
[  301.746615]  ? kasan_check_read+0x11/0x20
[  301.750767]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.756047]  ? rcu_softirq_qs+0x20/0x20
[  301.760038]  ? mark_held_locks+0xc7/0x130
[  301.764195]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  301.768962]  ? retint_kernel+0x2d/0x2d
[  301.772853]  ? trace_hardirqs_on_caller+0xc0/0x310
[  301.777786]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  301.782544]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  301.788002]  ? zap_class+0x640/0x640
[  301.791727]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.797268]  ? check_preemption_disabled+0x48/0x280
[  301.802326]  ? __lock_is_held+0xb5/0x140
[  301.806390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.811952]  ? check_preemption_disabled+0x48/0x280
[  301.816992]  run_timer_softirq+0x52/0xb0
[  301.821064]  ? rcu_read_lock_sched_held+0x14f/0x180
[  301.826090]  __do_softirq+0x308/0xb7e
[  301.829897]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  301.834405]  ? lock_downgrade+0x900/0x900
[  301.838560]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  301.843690]  ? pvclock_read_flags+0x160/0x160
[  301.848193]  ? lapic_next_event+0x5a/0x90
[  301.852368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.857930]  ? kvm_clock_read+0x18/0x30
[  301.861930]  ? kvm_sched_clock_read+0x9/0x20
[  301.866353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.871898]  ? check_preemption_disabled+0x48/0x280
[  301.876941]  irq_exit+0x17f/0x1c0
[  301.880402]  smp_apic_timer_interrupt+0x1cb/0x760
[  301.885394]  ? smp_call_function_single_interrupt+0x650/0x650
[  301.891286]  ? interrupt_entry+0xb5/0xc0
[  301.895352]  ? trace_hardirqs_off_caller+0xbb/0x310
[  301.900367]  ? trace_hardirqs_off_caller+0xbb/0x310
[  301.905389]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.910236]  ? trace_hardirqs_on_caller+0x310/0x310
[  301.915252]  ? trace_hardirqs_on_caller+0x310/0x310
[  301.920272]  ? task_prio+0x50/0x50
[  301.923818]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.929359]  ? check_preemption_disabled+0x48/0x280
[  301.934383]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.939236]  apic_timer_interrupt+0xf/0x20
[  301.943466]  </IRQ>
[  301.945712] RIP: 0010:dump_stack+0x358/0x39d
[  301.950128] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  301.969042] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  301.976770] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  301.984046] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  301.991317] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  301.998584] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  302.005852] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  302.013151]  ? dump_stack+0x34f/0x39d
[  302.016976]  ? dump_stack_print_info.cold.1+0x20/0x20
[  302.022172]  ? mark_held_locks+0x130/0x130
[  302.026411]  ? mark_held_locks+0x130/0x130
[  302.030654]  dump_header+0x27b/0xf72
[  302.034382]  ? pagefault_out_of_memory+0x197/0x197
[  302.039322]  ? __lock_acquire+0x62f/0x4c20
[  302.043566]  ? percpu_ref_get_many+0x240/0x240
[  302.048156]  ? print_usage_bug+0xc0/0xc0
[  302.052228]  ? zap_class+0x640/0x640
[  302.055962]  ? print_usage_bug+0xc0/0xc0
[  302.060023]  ? print_usage_bug+0xc0/0xc0
[  302.064107]  ? zap_class+0x640/0x640
[  302.067829]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.073371]  ? find_held_lock+0x36/0x1c0
[  302.077444]  ? mark_held_locks+0xc7/0x130
[  302.081594]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  302.086698]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  302.091807]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  302.096393]  ? trace_hardirqs_on+0xbd/0x310
[  302.100716]  ? kasan_check_read+0x11/0x20
[  302.104864]  ? ___ratelimit+0x3b4/0x672
[  302.108844]  ? trace_hardirqs_off_caller+0x310/0x310
[  302.113954]  ? trace_hardirqs_on+0x310/0x310
[  302.118365]  ? lock_downgrade+0x900/0x900
[  302.122518]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  302.127630]  ? ___ratelimit+0x3b9/0x672
[  302.131619]  ? idr_get_free+0xf70/0xf70
[  302.135593]  ? find_held_lock+0x36/0x1c0
[  302.139665]  oom_kill_process.cold.27+0x10/0x903
[  302.144424]  ? zap_class+0x640/0x640
[  302.148144]  ? check_preemption_disabled+0x48/0x280
[  302.153166]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  302.158097]  ? kasan_check_read+0x11/0x20
[  302.162246]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.167528]  ? oom_evaluate_task+0x540/0x540
[  302.171949]  ? find_held_lock+0x36/0x1c0
[  302.176020]  ? out_of_memory+0x974/0x1430
[  302.180177]  ? lock_downgrade+0x900/0x900
[  302.184329]  ? check_preemption_disabled+0x48/0x280
[  302.189348]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  302.194279]  ? kasan_check_read+0x11/0x20
[  302.198425]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.203704]  ? rcu_softirq_qs+0x20/0x20
[  302.207696]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.213233]  ? oom_evaluate_task+0x302/0x540
[  302.217645]  out_of_memory+0xa84/0x1430
[  302.221630]  ? oom_killer_disable+0x3a0/0x3a0
[  302.226142]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  302.231088]  ? __ww_mutex_check_waiters+0x160/0x160
[  302.236124]  __alloc_pages_slowpath+0x2354/0x2e10
[  302.241002]  ? warn_alloc+0x120/0x120
[  302.244807]  ? mark_held_locks+0x130/0x130
[  302.249056]  ? find_get_entry+0xaae/0x1120
[  302.253301]  ? filemap_map_pages+0x1a20/0x1a20
[  302.257890]  ? zap_class+0x640/0x640
[  302.261617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.267159]  ? check_preemption_disabled+0x48/0x280
[  302.272179]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.277722]  ? should_fail+0x22d/0xd01
[  302.281617]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  302.286723]  ? zap_class+0x640/0x640
[  302.290461]  ? __lock_is_held+0xb5/0x140
[  302.294529]  ? mark_held_locks+0x130/0x130
[  302.298766]  ? lock_release+0xa00/0xa00
[  302.302741]  ? perf_trace_sched_process_exec+0x860/0x860
[  302.308200]  ? xa_load+0x2ba/0x460
[  302.311745]  ? lock_downgrade+0x900/0x900
[  302.315898]  ? __might_sleep+0x95/0x190
[  302.319886]  __alloc_pages_nodemask+0xa80/0xde0
[  302.324567]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  302.329585]  ? __page_cache_alloc+0x191/0x5c0
[  302.334086]  ? xa_load+0x2e1/0x460
[  302.337633]  ? xa_clear_mark+0x40/0x40
[  302.341528]  ? zap_class+0x640/0x640
[  302.345252]  ? zap_class+0x640/0x640
[  302.348966]  ? zap_class+0x640/0x640
[  302.352681]  ? __do_page_cache_readahead+0x663/0x810
[  302.357906]  ? find_held_lock+0x36/0x1c0
[  302.361980]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  302.367530]  alloc_pages_current+0x173/0x350
[  302.371955]  __page_cache_alloc+0x38c/0x5c0
[  302.376275]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  302.381217]  ? kasan_check_read+0x11/0x20
[  302.385366]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.390647]  ? generic_perform_write+0x6a0/0x6a0
[  302.395406]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.400952]  ? check_preemption_disabled+0x48/0x280
[  302.405981]  filemap_fault+0x1595/0x25f0
[  302.410060]  ? __lock_page_or_retry+0xa00/0xa00
[  302.414739]  ? mark_held_locks+0x130/0x130
[  302.418983]  ? filemap_map_pages+0xd6b/0x1a20
[  302.423482]  ? lock_downgrade+0x900/0x900
[  302.427631]  ? check_preemption_disabled+0x48/0x280
[  302.432651]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  302.437583]  ? kasan_check_read+0x11/0x20
[  302.441729]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.447008]  ? rcu_softirq_qs+0x20/0x20
[  302.451010]  ? filemap_map_pages+0xd92/0x1a20
[  302.455527]  ? find_get_entries_tag+0x1400/0x1400
[  302.460378]  ? find_held_lock+0x36/0x1c0
[  302.464467]  ? lock_acquire+0x1ed/0x520
[  302.468441]  ? ext4_filemap_fault+0x7a/0xad
[  302.472767]  ? lock_release+0xa00/0xa00
[  302.476752]  ? perf_trace_sched_process_exec+0x860/0x860
[  302.482206]  ? print_usage_bug+0xc0/0xc0
[  302.486281]  ? print_usage_bug+0xc0/0xc0
[  302.490359]  ? down_read+0x8d/0x120
[  302.493983]  ? ext4_filemap_fault+0x7a/0xad
[  302.498308]  ? __down_interruptible+0x700/0x700
[  302.502991]  ext4_filemap_fault+0x82/0xad
[  302.507147]  __do_fault+0x100/0x6b0
[  302.510779]  ? find_held_lock+0x36/0x1c0
[  302.514844]  ? pmd_devmap_trans_unstable+0x220/0x220
[  302.520009]  ? mark_held_locks+0x130/0x130
[  302.524288]  ? mark_held_locks+0x130/0x130
[  302.528538]  ? kasan_check_read+0x11/0x20
[  302.532694]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.538248]  __handle_mm_fault+0x3ea0/0x5be0
[  302.542659]  ? perf_trace_lock+0x7a0/0x7a0
[  302.546905]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  302.551784]  ? __switch_to_asm+0x34/0x70
[  302.555842]  ? __switch_to_asm+0x34/0x70
[  302.559918]  ? zap_class+0x640/0x640
[  302.563648]  ? zap_class+0x640/0x640
[  302.567369]  ? __x64_sys_futex+0x53e/0x6a0
[  302.571628]  ? find_held_lock+0x36/0x1c0
[  302.575701]  ? handle_mm_fault+0x42a/0xc70
[  302.579946]  ? lock_downgrade+0x900/0x900
[  302.584102]  ? check_preemption_disabled+0x48/0x280
[  302.589138]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  302.594081]  ? kasan_check_read+0x11/0x20
[  302.598229]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.603505]  ? rcu_softirq_qs+0x20/0x20
[  302.607479]  ? trace_hardirqs_off_caller+0x310/0x310
[  302.612587]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.618132]  ? check_preemption_disabled+0x48/0x280
[  302.623161]  handle_mm_fault+0x54f/0xc70
[  302.627227]  ? __handle_mm_fault+0x5be0/0x5be0
[  302.631815]  ? find_vma+0x34/0x190
[  302.635364]  __do_page_fault+0x5e8/0xe60
[  302.639428]  ? trace_hardirqs_off+0xb8/0x310
[  302.643852]  do_page_fault+0xf2/0x7e0
[  302.647653]  ? vmalloc_sync_all+0x30/0x30
[  302.651803]  ? error_entry+0x70/0xd0
[  302.655519]  ? trace_hardirqs_off_caller+0xbb/0x310
[  302.660537]  ? trace_hardirqs_on_caller+0xc0/0x310
[  302.665471]  ? syscall_return_slowpath+0x5e0/0x5e0
[  302.670402]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.675246]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.680265]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  302.685725]  ? prepare_exit_to_usermode+0x291/0x3b0
[  302.690745]  ? page_fault+0x8/0x30
[  302.694291]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.699153]  ? page_fault+0x8/0x30
[  302.702696]  page_fault+0x1e/0x30
[  302.706150] RIP: 0033:0x44b69a
[  302.709357] Code: Bad RIP value.
[  302.712718] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  302.718082] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  302.725352] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  302.732619] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  302.739885] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  302.747153] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  302.754870] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  302.754877] warn_alloc_show_mem: 1 callbacks suppressed
[  302.754884] Mem-Info:
[  302.762072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  302.762081] Call Trace:
[  302.767456] active_anon:47227 inactive_anon:190 isolated_anon:0
[  302.767456]  active_file:11 inactive_file:14 isolated_file:0
[  302.767456]  unevictable:0 dirty:0 writeback:0 unstable:0
[  302.767456]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  302.767456]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  302.767456]  free:13756 free_pcp:235 free_cma:0
[  302.769827]  <IRQ>
[  302.779192] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  302.781782]  dump_stack+0x244/0x39d
[  302.814821] 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
[  302.817011]  ? dump_stack_print_info.cold.1+0x20/0x20
[  302.844487] lowmem_reserve[]: 0 2818 6321 6321
[  302.848133]  warn_alloc.cold.116+0xb7/0x1bd
[  302.874218] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  302.879425]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  302.883969] lowmem_reserve[]: 0 0 3503 3503
[  302.888301]  ? lock_downgrade+0x900/0x900
[  302.915609] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  302.920470]  ? trace_hardirqs_off+0xb8/0x310
[  302.924753] lowmem_reserve[]: 0 0 0 0
[  302.928913]  ? trace_hardirqs_off+0xb8/0x310
[  302.957781] 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
[  302.962206]  __alloc_pages_slowpath+0x26e8/0x2e10
[  302.965968] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  302.970400]  ? warn_alloc+0x120/0x120
[  302.983875] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  302.988724]  ? print_usage_bug+0xc0/0xc0
[  303.003978] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  303.007789]  ? warn_alloc+0x120/0x120
[  303.022854] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  303.022863] 269 total pagecache pages
[  303.026942]  ? warn_alloc+0x120/0x120
[  303.035756] 0 pages in swap cache
[  303.039554]  ? print_usage_bug+0xc0/0xc0
[  303.048104] Swap cache stats: add 0, delete 0, find 0/0
[  303.051898]  ? kvm_clock_read+0x18/0x30
[  303.055667] Free swap  = 0kB
[  303.059122]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  303.063155] Total swap = 0kB
[  303.068519]  ? print_usage_bug+0xc0/0xc0
[  303.072480] 1965979 pages RAM
[  303.075498]  ? __lock_acquire+0x62f/0x4c20
[  303.080486] 0 pages HighMem/MovableOnly
[  303.083502]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.087537] 342853 pages reserved
[  303.090644]  ? should_fail+0x22d/0xd01
[  303.094851] 0 pages cma reserved
[  303.098828]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.104437] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  303.107790]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.111716] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  303.115010]  ? __lock_acquire+0x62f/0x4c20
[  303.120274] syz-fuzzer cpuset=/ mems_allowed=0
[  303.126772]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.155958]  ? __lock_acquire+0x62f/0x4c20
[  303.160198]  ? should_fail+0x22d/0xd01
[  303.164086]  ? rcu_irq_exit+0x1a2/0x390
[  303.168077]  ? mark_held_locks+0x130/0x130
[  303.172324]  ? mark_held_locks+0x130/0x130
[  303.176567]  ? mark_held_locks+0xc7/0x130
[  303.180728]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  303.185763]  ? zap_class+0x640/0x640
[  303.189480]  ? print_usage_bug+0xc0/0xc0
[  303.193555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.199098]  ? check_preemption_disabled+0x48/0x280
[  303.204129]  ? __lock_is_held+0xb5/0x140
[  303.208208]  __alloc_pages_nodemask+0xa80/0xde0
[  303.212883]  ? zap_class+0x640/0x640
[  303.216605]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  303.221639]  ? find_held_lock+0x36/0x1c0
[  303.225726]  ? ____cache_alloc_node+0x1c7/0x1e0
[  303.230398]  ? lock_downgrade+0x900/0x900
[  303.234563]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.240108]  cache_grow_begin+0xa5/0x8c0
[  303.244175]  ? do_raw_spin_unlock+0xa7/0x330
[  303.248599]  fallback_alloc+0x204/0x2e0
[  303.252581]  ____cache_alloc_node+0x1c7/0x1e0
[  303.257082]  kmem_cache_alloc_node+0xe3/0x730
[  303.261604]  ? ipv6_get_ifaddr+0x42e/0x620
[  303.265852]  __alloc_skb+0x119/0x770
[  303.269570]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.274855]  ? netdev_alloc_frag+0x1f0/0x1f0
[  303.279266]  ? lock_downgrade+0x900/0x900
[  303.283423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.288963]  ? refcount_sub_and_test_checked+0x203/0x310
[  303.294425]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  303.299878]  ? addrconf_rs_timer+0x690/0x690
[  303.304304]  ndisc_alloc_skb+0x144/0x340
[  303.308372]  ndisc_send_rs+0x331/0x6e0
[  303.312270]  addrconf_rs_timer+0x314/0x690
[  303.316514]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.320777]  call_timer_fn+0x272/0x920
[  303.324668]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.328942]  ? process_timeout+0x40/0x40
[  303.333020]  ? __run_timers+0x7da/0xc70
[  303.337000]  ? _raw_spin_unlock_irq+0x27/0x80
[  303.341497]  ? _raw_spin_unlock_irq+0x27/0x80
[  303.346009]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.350247]  ? lockdep_hardirqs_on+0x296/0x5b0
[  303.354836]  ? trace_hardirqs_on+0xbd/0x310
[  303.359167]  ? kasan_check_read+0x11/0x20
[  303.363314]  ? __run_timers+0x7da/0xc70
[  303.367292]  ? trace_hardirqs_off_caller+0x310/0x310
[  303.372403]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.376647]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  303.380881]  __run_timers+0x7e5/0xc70
[  303.384696]  ? timer_fixup_init+0x70/0x70
[  303.388851]  ? lock_acquire+0x1ed/0x520
[  303.392833]  ? zap_class+0x640/0x640
[  303.396560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.402116]  ? kasan_check_read+0x11/0x20
[  303.406266]  ? do_raw_spin_lock+0x14f/0x350
[  303.410597]  ? find_held_lock+0x36/0x1c0
[  303.414661]  ? zap_class+0x640/0x640
[  303.418388]  ? pvclock_read_flags+0x160/0x160
[  303.422887]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.428426]  ? check_preemption_disabled+0x48/0x280
[  303.433451]  ? __lock_is_held+0xb5/0x140
[  303.437520]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.443066]  ? check_preemption_disabled+0x48/0x280
[  303.448091]  run_timer_softirq+0x52/0xb0
[  303.452155]  ? rcu_read_lock_sched_held+0x14f/0x180
[  303.457177]  __do_softirq+0x308/0xb7e
[  303.460986]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  303.465481]  ? lock_downgrade+0x900/0x900
[  303.469633]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  303.474748]  ? pvclock_read_flags+0x160/0x160
[  303.479246]  ? lapic_next_event+0x5a/0x90
[  303.483413]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.488963]  ? kvm_clock_read+0x18/0x30
[  303.492950]  ? kvm_sched_clock_read+0x9/0x20
[  303.497362]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.502905]  ? check_preemption_disabled+0x48/0x280
[  303.507946]  irq_exit+0x17f/0x1c0
[  303.511407]  smp_apic_timer_interrupt+0x1cb/0x760
[  303.516249]  ? smp_call_function_single_interrupt+0x159/0x650
[  303.522145]  ? smp_call_function_single_interrupt+0x650/0x650
[  303.528030]  ? interrupt_entry+0xb5/0xc0
[  303.532099]  ? trace_hardirqs_off_caller+0xbb/0x310
[  303.537116]  ? trace_hardirqs_off_caller+0xbb/0x310
[  303.542138]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.546982]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.552006]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.557036]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.561893]  apic_timer_interrupt+0xf/0x20
[  303.566133]  </IRQ>
[  303.568375] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  303.573311] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  303.592218] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  303.599944] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  303.607230] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  303.614510] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  303.621785] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  303.629059] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  303.636383]  skb_clone+0x1bb/0x500
[  303.639940]  ? skb_split+0x11e0/0x11e0
[  303.643833]  ? check_preemption_disabled+0x48/0x280
[  303.648859]  ? __this_cpu_preempt_check+0x1c/0x20
[  303.653711]  ? __bpf_redirect+0x54b/0xb20
[  303.657905]  bpf_clone_redirect+0xb9/0x490
[  303.662170]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  303.667198]  ? __sched_text_start+0x8/0x8
[  303.671355]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  303.676126]  ? find_held_lock+0x36/0x1c0
[  303.680199]  ? lock_acquire+0x1ed/0x520
[  303.684173]  ? bpf_test_run+0x3cb/0x780
[  303.688152]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.693693]  ? check_preemption_disabled+0x48/0x280
[  303.698723]  ? kasan_check_read+0x11/0x20
[  303.702873]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.708153]  ? rcu_softirq_qs+0x20/0x20
[  303.712150]  ? preempt_schedule+0x4d/0x60
[  303.716306]  ? ___preempt_schedule+0x16/0x18
[  303.720723]  ? bpf_test_run+0x25d/0x780
[  303.724712]  ? netlink_diag_dump+0x2a0/0x2a0
[  303.729129]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  303.733893]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  303.738668]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  303.743513]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  303.749064]  ? fput+0x130/0x1a0
[  303.752350]  ? __bpf_prog_get+0x9b/0x290
[  303.756431]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  303.761271]  ? bpf_prog_test_run+0x130/0x1a0
[  303.765686]  ? __x64_sys_bpf+0x3d8/0x520
[  303.769750]  ? bpf_prog_get+0x20/0x20
[  303.773576]  ? do_syscall_64+0x1b9/0x820
[  303.777638]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  303.783010]  ? syscall_return_slowpath+0x5e0/0x5e0
[  303.787948]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.792799]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.797821]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  303.802839]  ? prepare_exit_to_usermode+0x291/0x3b0
[  303.807869]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.812724]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  303.818112] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  303.818201] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  303.825049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  303.825054] Call Trace:
[  303.825062]  <IRQ>
[  303.825082]  dump_stack+0x244/0x39d
[  303.825099]  ? dump_stack_print_info.cold.1+0x20/0x20
[  303.825127]  warn_alloc.cold.116+0xb7/0x1bd
[  303.831664] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  303.840954]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  303.843517] syz-executor4 cpuset=syz4 mems_allowed=0
[  303.845667]  ? lock_downgrade+0x900/0x900
[  303.883409]  ? trace_hardirqs_off+0xb8/0x310
[  303.887843]  ? trace_hardirqs_off+0xb8/0x310
[  303.892276]  __alloc_pages_slowpath+0x26e8/0x2e10
[  303.897151]  ? warn_alloc+0x120/0x120
[  303.900969]  ? print_usage_bug+0xc0/0xc0
[  303.905038]  ? warn_alloc+0x120/0x120
[  303.908841]  ? zap_class+0x640/0x640
[  303.912555]  ? warn_alloc+0x120/0x120
[  303.916359]  ? print_usage_bug+0xc0/0xc0
[  303.920429]  ? print_usage_bug+0xc0/0xc0
[  303.924491]  ? __lock_acquire+0x62f/0x4c20
[  303.928732]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.934275]  ? should_fail+0x22d/0xd01
[  303.938172]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.943281]  ? __lock_acquire+0x62f/0x4c20
[  303.947525]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.952626]  ? __lock_acquire+0x62f/0x4c20
[  303.956956]  ? should_fail+0x22d/0xd01
[  303.960844]  ? find_held_lock+0x36/0x1c0
[  303.964917]  ? mark_held_locks+0x130/0x130
[  303.969172]  ? mark_held_locks+0x130/0x130
[  303.973415]  ? zap_class+0x640/0x640
[  303.977146]  ? zap_class+0x640/0x640
[  303.980874]  ? print_usage_bug+0xc0/0xc0
[  303.984941]  ? do_raw_spin_unlock+0xa7/0x330
[  303.989352]  ? zap_class+0x640/0x640
[  303.993070]  ? print_usage_bug+0xc0/0xc0
[  303.997137]  ? wq_watchdog_touch+0x9c/0xfe
[  304.001381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.006944]  ? check_preemption_disabled+0x48/0x280
[  304.011983]  ? __lock_is_held+0xb5/0x140
[  304.016061]  __alloc_pages_nodemask+0xa80/0xde0
[  304.020750]  ? zap_class+0x640/0x640
[  304.024471]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  304.029499]  ? find_held_lock+0x36/0x1c0
[  304.033573]  ? ____cache_alloc_node+0x1c7/0x1e0
[  304.038257]  ? lock_downgrade+0x900/0x900
[  304.042417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.047968]  cache_grow_begin+0xa5/0x8c0
[  304.052038]  ? do_raw_spin_unlock+0xa7/0x330
[  304.056456]  fallback_alloc+0x204/0x2e0
[  304.060437]  ____cache_alloc_node+0x1c7/0x1e0
[  304.064947]  kmem_cache_alloc_node+0xe3/0x730
[  304.069449]  ? ipv6_get_ifaddr+0x42e/0x620
[  304.073703]  __alloc_skb+0x119/0x770
[  304.077422]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.082703]  ? netdev_alloc_frag+0x1f0/0x1f0
[  304.087124]  ? lock_downgrade+0x900/0x900
[  304.091281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.096825]  ? refcount_sub_and_test_checked+0x203/0x310
[  304.102282]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  304.107747]  ? addrconf_rs_timer+0x690/0x690
[  304.112194]  ndisc_alloc_skb+0x144/0x340
[  304.116265]  ndisc_send_rs+0x331/0x6e0
[  304.120157]  addrconf_rs_timer+0x314/0x690
[  304.124402]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.128662]  call_timer_fn+0x272/0x920
[  304.132556]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.136792]  ? process_timeout+0x40/0x40
[  304.140864]  ? mark_held_locks+0xc7/0x130
[  304.145018]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.149518]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.154017]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.158274]  ? lockdep_hardirqs_on+0x296/0x5b0
[  304.162885]  ? trace_hardirqs_on+0xbd/0x310
[  304.167210]  ? kasan_check_read+0x11/0x20
[  304.171376]  ? __run_timers+0x7da/0xc70
[  304.175353]  ? trace_hardirqs_off_caller+0x310/0x310
[  304.180464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.184703]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.188944]  __run_timers+0x7e5/0xc70
[  304.192760]  ? timer_fixup_init+0x70/0x70
[  304.196911]  ? kasan_check_read+0x11/0x20
[  304.201071]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.206352]  ? rcu_softirq_qs+0x20/0x20
[  304.210353]  ? mark_held_locks+0xc7/0x130
[  304.214510]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  304.219274]  ? retint_kernel+0x2d/0x2d
[  304.223164]  ? trace_hardirqs_on_caller+0xc0/0x310
[  304.228098]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  304.232859]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  304.238317]  ? zap_class+0x640/0x640
[  304.242042]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.247588]  ? check_preemption_disabled+0x48/0x280
[  304.252613]  ? __lock_is_held+0xb5/0x140
[  304.256680]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.262223]  ? check_preemption_disabled+0x48/0x280
[  304.267272]  run_timer_softirq+0x52/0xb0
[  304.271336]  ? rcu_read_lock_sched_held+0x14f/0x180
[  304.276357]  __do_softirq+0x308/0xb7e
[  304.280161]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  304.284656]  ? lock_downgrade+0x900/0x900
[  304.288811]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  304.293933]  ? pvclock_read_flags+0x160/0x160
[  304.298432]  ? lapic_next_event+0x5a/0x90
[  304.302591]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.308138]  ? kvm_clock_read+0x18/0x30
[  304.312115]  ? kvm_sched_clock_read+0x9/0x20
[  304.316529]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.322073]  ? check_preemption_disabled+0x48/0x280
[  304.327104]  irq_exit+0x17f/0x1c0
[  304.330608]  smp_apic_timer_interrupt+0x1cb/0x760
[  304.335472]  ? smp_call_function_single_interrupt+0x650/0x650
[  304.341361]  ? interrupt_entry+0xb5/0xc0
[  304.345428]  ? trace_hardirqs_off_caller+0xbb/0x310
[  304.350447]  ? trace_hardirqs_off_caller+0xbb/0x310
[  304.355467]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  304.360312]  ? trace_hardirqs_on_caller+0x310/0x310
[  304.365356]  ? trace_hardirqs_on_caller+0x310/0x310
[  304.370379]  ? task_prio+0x50/0x50
[  304.373945]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.379498]  ? check_preemption_disabled+0x48/0x280
[  304.384526]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  304.389380]  apic_timer_interrupt+0xf/0x20
[  304.393609]  </IRQ>
[  304.395848] RIP: 0010:dump_stack+0x358/0x39d
[  304.400260] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  304.419172] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  304.426882] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  304.434154] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  304.441427] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  304.448695] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  304.455967] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  304.463266]  ? dump_stack+0x34f/0x39d
[  304.467082]  ? dump_stack_print_info.cold.1+0x20/0x20
[  304.472279]  ? mark_held_locks+0x130/0x130
[  304.476516]  ? mark_held_locks+0x130/0x130
[  304.480758]  dump_header+0x27b/0xf72
[  304.484487]  ? pagefault_out_of_memory+0x197/0x197
[  304.489430]  ? __lock_acquire+0x62f/0x4c20
[  304.493670]  ? percpu_ref_get_many+0x240/0x240
[  304.498271]  ? print_usage_bug+0xc0/0xc0
[  304.502340]  ? zap_class+0x640/0x640
[  304.506062]  ? print_usage_bug+0xc0/0xc0
[  304.510126]  ? print_usage_bug+0xc0/0xc0
[  304.514190]  ? zap_class+0x640/0x640
[  304.517909]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.523459]  ? find_held_lock+0x36/0x1c0
[  304.527529]  ? mark_held_locks+0xc7/0x130
[  304.531681]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  304.536783]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  304.541888]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  304.546516]  ? trace_hardirqs_on+0xbd/0x310
[  304.550860]  ? kasan_check_read+0x11/0x20
[  304.555011]  ? ___ratelimit+0x3b4/0x672
[  304.558993]  ? trace_hardirqs_off_caller+0x310/0x310
[  304.564102]  ? trace_hardirqs_on+0x310/0x310
[  304.568524]  ? lock_downgrade+0x900/0x900
[  304.572688]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  304.577794]  ? ___ratelimit+0x3b9/0x672
[  304.581771]  ? idr_get_free+0xf70/0xf70
[  304.585745]  ? find_held_lock+0x36/0x1c0
[  304.589820]  oom_kill_process.cold.27+0x10/0x903
[  304.594580]  ? zap_class+0x640/0x640
[  304.598296]  ? check_preemption_disabled+0x48/0x280
[  304.603315]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  304.608248]  ? kasan_check_read+0x11/0x20
[  304.612400]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.617698]  ? oom_evaluate_task+0x540/0x540
[  304.622137]  ? find_held_lock+0x36/0x1c0
[  304.626208]  ? out_of_memory+0x974/0x1430
[  304.630377]  ? lock_downgrade+0x900/0x900
[  304.634527]  ? check_preemption_disabled+0x48/0x280
[  304.639546]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  304.644477]  ? kasan_check_read+0x11/0x20
[  304.648623]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.653899]  ? rcu_softirq_qs+0x20/0x20
[  304.657893]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.663436]  ? oom_evaluate_task+0x302/0x540
[  304.667852]  out_of_memory+0xa84/0x1430
[  304.671837]  ? oom_killer_disable+0x3a0/0x3a0
[  304.676334]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  304.681285]  ? __ww_mutex_check_waiters+0x160/0x160
[  304.686317]  __alloc_pages_slowpath+0x2354/0x2e10
[  304.691190]  ? warn_alloc+0x120/0x120
[  304.694995]  ? mark_held_locks+0x130/0x130
[  304.699239]  ? find_get_entry+0xaae/0x1120
[  304.703484]  ? filemap_map_pages+0x1a20/0x1a20
[  304.708085]  ? zap_class+0x640/0x640
[  304.711819]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.717362]  ? check_preemption_disabled+0x48/0x280
[  304.722383]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.727922]  ? should_fail+0x22d/0xd01
[  304.731824]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  304.736945]  ? zap_class+0x640/0x640
[  304.740686]  ? __lock_is_held+0xb5/0x140
[  304.744761]  ? mark_held_locks+0x130/0x130
[  304.749003]  ? lock_release+0xa00/0xa00
[  304.753382]  ? perf_trace_sched_process_exec+0x860/0x860
[  304.758836]  ? xa_load+0x2ba/0x460
[  304.762379]  ? lock_downgrade+0x900/0x900
[  304.766535]  ? __might_sleep+0x95/0x190
[  304.770521]  __alloc_pages_nodemask+0xa80/0xde0
[  304.775208]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  304.780228]  ? __page_cache_alloc+0x191/0x5c0
[  304.784727]  ? xa_load+0x2e1/0x460
[  304.788271]  ? xa_clear_mark+0x40/0x40
[  304.792161]  ? zap_class+0x640/0x640
[  304.795893]  ? zap_class+0x640/0x640
[  304.799615]  ? zap_class+0x640/0x640
[  304.803335]  ? __do_page_cache_readahead+0x663/0x810
[  304.808454]  ? find_held_lock+0x36/0x1c0
[  304.812524]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  304.818072]  alloc_pages_current+0x173/0x350
[  304.822490]  __page_cache_alloc+0x38c/0x5c0
[  304.826812]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  304.831758]  ? kasan_check_read+0x11/0x20
[  304.835907]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.841201]  ? generic_perform_write+0x6a0/0x6a0
[  304.845968]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.851522]  ? check_preemption_disabled+0x48/0x280
[  304.856561]  filemap_fault+0x1595/0x25f0
[  304.860640]  ? __lock_page_or_retry+0xa00/0xa00
[  304.865318]  ? mark_held_locks+0x130/0x130
[  304.869567]  ? filemap_map_pages+0xd6b/0x1a20
[  304.874066]  ? lock_downgrade+0x900/0x900
[  304.878215]  ? check_preemption_disabled+0x48/0x280
[  304.883255]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  304.888221]  ? kasan_check_read+0x11/0x20
[  304.892370]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.897647]  ? rcu_softirq_qs+0x20/0x20
[  304.901649]  ? filemap_map_pages+0xd92/0x1a20
[  304.906158]  ? find_get_entries_tag+0x1400/0x1400
[  304.911007]  ? find_held_lock+0x36/0x1c0
[  304.915091]  ? lock_acquire+0x1ed/0x520
[  304.919067]  ? ext4_filemap_fault+0x7a/0xad
[  304.923398]  ? lock_release+0xa00/0xa00
[  304.927372]  ? perf_trace_sched_process_exec+0x860/0x860
[  304.932823]  ? print_usage_bug+0xc0/0xc0
[  304.936886]  ? print_usage_bug+0xc0/0xc0
[  304.940975]  ? down_read+0x8d/0x120
[  304.944612]  ? ext4_filemap_fault+0x7a/0xad
[  304.948944]  ? __down_interruptible+0x700/0x700
[  304.953657]  ext4_filemap_fault+0x82/0xad
[  304.957826]  __do_fault+0x100/0x6b0
[  304.961451]  ? find_held_lock+0x36/0x1c0
[  304.965518]  ? pmd_devmap_trans_unstable+0x220/0x220
[  304.970629]  ? mark_held_locks+0x130/0x130
[  304.974866]  ? mark_held_locks+0x130/0x130
[  304.979114]  ? kasan_check_read+0x11/0x20
[  304.983267]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.988815]  __handle_mm_fault+0x3ea0/0x5be0
[  304.993228]  ? perf_trace_lock+0x7a0/0x7a0
[  304.997470]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  305.002328]  ? __switch_to_asm+0x34/0x70
[  305.006388]  ? __switch_to_asm+0x34/0x70
[  305.010463]  ? zap_class+0x640/0x640
[  305.014181]  ? zap_class+0x640/0x640
[  305.017895]  ? __x64_sys_futex+0x53e/0x6a0
[  305.022148]  ? find_held_lock+0x36/0x1c0
[  305.026274]  ? handle_mm_fault+0x42a/0xc70
[  305.030525]  ? lock_downgrade+0x900/0x900
[  305.034676]  ? check_preemption_disabled+0x48/0x280
[  305.039700]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  305.044633]  ? kasan_check_read+0x11/0x20
[  305.048779]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.054058]  ? rcu_softirq_qs+0x20/0x20
[  305.058045]  ? trace_hardirqs_off_caller+0x310/0x310
[  305.063155]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.068696]  ? check_preemption_disabled+0x48/0x280
[  305.073727]  handle_mm_fault+0x54f/0xc70
[  305.077794]  ? __handle_mm_fault+0x5be0/0x5be0
[  305.082382]  ? find_vma+0x34/0x190
[  305.085939]  __do_page_fault+0x5e8/0xe60
[  305.090009]  ? trace_hardirqs_off+0xb8/0x310
[  305.094439]  do_page_fault+0xf2/0x7e0
[  305.098247]  ? vmalloc_sync_all+0x30/0x30
[  305.102400]  ? error_entry+0x70/0xd0
[  305.106114]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.111134]  ? trace_hardirqs_on_caller+0xc0/0x310
[  305.116071]  ? syscall_return_slowpath+0x5e0/0x5e0
[  305.121002]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.125860]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.130876]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  305.136337]  ? prepare_exit_to_usermode+0x291/0x3b0
[  305.141359]  ? page_fault+0x8/0x30
[  305.144902]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.149757]  ? page_fault+0x8/0x30
[  305.153299]  page_fault+0x1e/0x30
[  305.156760] RIP: 0033:0x44b69a
[  305.159975] Code: Bad RIP value.
[  305.163346] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  305.168706] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  305.175975] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  305.183246] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  305.190514] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  305.197784] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  305.205089] warn_alloc_show_mem: 1 callbacks suppressed
[  305.205102] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  305.205104] Mem-Info:
[  305.205137] active_anon:47227 inactive_anon:190 isolated_anon:0
[  305.205137]  active_file:11 inactive_file:14 isolated_file:0
[  305.205137]  unevictable:0 dirty:0 writeback:0 unstable:0
[  305.205137]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  305.205137]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  305.205137]  free:13756 free_pcp:235 free_cma:0
[  305.210495] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  305.210507] Call Trace:
[  305.217725] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  305.220124]  <IRQ>
[  305.253004] 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
[  305.262376]  dump_stack+0x244/0x39d
[  305.264930] lowmem_reserve[]: 0 2818 6321 6321
[  305.292466]  ? dump_stack_print_info.cold.1+0x20/0x20
[  305.294593] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  305.320737]  warn_alloc.cold.116+0xb7/0x1bd
[  305.324341] lowmem_reserve[]: 0 0 3503 3503
[  305.328941]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  305.334101] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  305.361449]  ? lock_downgrade+0x900/0x900
[  305.365750] lowmem_reserve[]: 0 0 0 0
[  305.370078]  ? trace_hardirqs_off+0xb8/0x310
[  305.374886] 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
[  305.403793]  ? trace_hardirqs_off+0xb8/0x310
[  305.407921] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  305.411732]  __alloc_pages_slowpath+0x26e8/0x2e10
[  305.416103] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  305.429661]  ? warn_alloc+0x120/0x120
[  305.434040] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  305.449304]  ? print_usage_bug+0xc0/0xc0
[  305.454128] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  305.469224]  ? warn_alloc+0x120/0x120
[  305.473022] 269 total pagecache pages
[  305.481865]  ? warn_alloc+0x120/0x120
[  305.485917] 0 pages in swap cache
[  305.494501]  ? print_usage_bug+0xc0/0xc0
[  305.498277] Swap cache stats: add 0, delete 0, find 0/0
[  305.502083]  ? print_usage_bug+0xc0/0xc0
[  305.505850] Free swap  = 0kB
[  305.509305]  ? __lock_acquire+0x62f/0x4c20
[  305.513336] Total swap = 0kB
[  305.518709]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.522740] 1965979 pages RAM
[  305.525763]  ? should_fail+0x22d/0xd01
[  305.529974] 0 pages HighMem/MovableOnly
[  305.529983] 342853 pages reserved
[  305.533004]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.538510] 0 pages cma reserved
[  305.538602] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  305.541629]  ? __lock_acquire+0x62f/0x4c20
[  305.545593] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  305.549461]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.552884] syz-fuzzer cpuset=/ mems_allowed=0
[  305.557988]  ? __lock_acquire+0x62f/0x4c20
[  305.596169]  ? should_fail+0x22d/0xd01
[  305.600072]  ? find_held_lock+0x36/0x1c0
[  305.604148]  ? mark_held_locks+0x130/0x130
[  305.608396]  ? mark_held_locks+0x130/0x130
[  305.612633]  ? zap_class+0x640/0x640
[  305.616354]  ? zap_class+0x640/0x640
[  305.620074]  ? print_usage_bug+0xc0/0xc0
[  305.624138]  ? do_raw_spin_unlock+0xa7/0x330
[  305.628555]  ? zap_class+0x640/0x640
[  305.632273]  ? print_usage_bug+0xc0/0xc0
[  305.636338]  ? wq_watchdog_touch+0x9c/0xfe
[  305.640617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.646161]  ? check_preemption_disabled+0x48/0x280
[  305.651191]  ? __lock_is_held+0xb5/0x140
[  305.655266]  __alloc_pages_nodemask+0xa80/0xde0
[  305.659960]  ? zap_class+0x640/0x640
[  305.663713]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  305.668746]  ? find_held_lock+0x36/0x1c0
[  305.672826]  ? ____cache_alloc_node+0x1c7/0x1e0
[  305.677502]  ? lock_downgrade+0x900/0x900
[  305.681665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.687218]  cache_grow_begin+0xa5/0x8c0
[  305.691286]  ? do_raw_spin_unlock+0xa7/0x330
[  305.695711]  fallback_alloc+0x204/0x2e0
[  305.699699]  ____cache_alloc_node+0x1c7/0x1e0
[  305.704215]  kmem_cache_alloc_node+0xe3/0x730
[  305.708725]  ? ipv6_get_ifaddr+0x42e/0x620
[  305.712980]  __alloc_skb+0x119/0x770
[  305.716701]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.721991]  ? netdev_alloc_frag+0x1f0/0x1f0
[  305.726409]  ? lock_downgrade+0x900/0x900
[  305.730579]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.736125]  ? refcount_sub_and_test_checked+0x203/0x310
[  305.741604]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  305.747086]  ? addrconf_rs_timer+0x690/0x690
[  305.751519]  ndisc_alloc_skb+0x144/0x340
[  305.755600]  ndisc_send_rs+0x331/0x6e0
[  305.759525]  addrconf_rs_timer+0x314/0x690
[  305.763772]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.768029]  call_timer_fn+0x272/0x920
[  305.771949]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.776191]  ? process_timeout+0x40/0x40
[  305.780264]  ? __run_timers+0x7da/0xc70
[  305.784248]  ? _raw_spin_unlock_irq+0x27/0x80
[  305.788764]  ? _raw_spin_unlock_irq+0x27/0x80
[  305.793263]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.797552]  ? lockdep_hardirqs_on+0x296/0x5b0
[  305.802142]  ? trace_hardirqs_on+0xbd/0x310
[  305.806485]  ? kasan_check_read+0x11/0x20
[  305.810639]  ? __run_timers+0x7da/0xc70
[  305.814620]  ? trace_hardirqs_off_caller+0x310/0x310
[  305.819735]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.823981]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.828223]  __run_timers+0x7e5/0xc70
[  305.832037]  ? timer_fixup_init+0x70/0x70
[  305.836205]  ? lock_acquire+0x1ed/0x520
[  305.840185]  ? zap_class+0x640/0x640
[  305.843904]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.849462]  ? kasan_check_read+0x11/0x20
[  305.853615]  ? do_raw_spin_lock+0x14f/0x350
[  305.857956]  ? find_held_lock+0x36/0x1c0
[  305.862027]  ? zap_class+0x640/0x640
[  305.865748]  ? pvclock_read_flags+0x160/0x160
[  305.870252]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.875799]  ? check_preemption_disabled+0x48/0x280
[  305.880832]  ? __lock_is_held+0xb5/0x140
[  305.885088]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.890641]  ? check_preemption_disabled+0x48/0x280
[  305.895685]  run_timer_softirq+0x52/0xb0
[  305.899757]  ? rcu_read_lock_sched_held+0x14f/0x180
[  305.904780]  __do_softirq+0x308/0xb7e
[  305.908590]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  305.913094]  ? lock_downgrade+0x900/0x900
[  305.917262]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  305.922382]  ? pvclock_read_flags+0x160/0x160
[  305.926885]  ? lapic_next_event+0x5a/0x90
[  305.931046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.936598]  ? kvm_clock_read+0x18/0x30
[  305.940596]  ? kvm_sched_clock_read+0x9/0x20
[  305.945018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.950566]  ? check_preemption_disabled+0x48/0x280
[  305.955598]  irq_exit+0x17f/0x1c0
[  305.959060]  smp_apic_timer_interrupt+0x1cb/0x760
[  305.963906]  ? smp_call_function_single_interrupt+0x159/0x650
[  305.969807]  ? smp_call_function_single_interrupt+0x650/0x650
[  305.975699]  ? interrupt_entry+0xb5/0xc0
[  305.979768]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.984788]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.989814]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.994664]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.999686]  ? trace_hardirqs_on_caller+0x310/0x310
[  306.004729]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  306.009594]  apic_timer_interrupt+0xf/0x20
[  306.013823]  </IRQ>
[  306.016070] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  306.021007] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  306.039935] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  306.047670] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  306.054962] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  306.062248] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  306.069525] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  306.076813] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  306.084141]  skb_clone+0x1bb/0x500
[  306.087690]  ? skb_split+0x11e0/0x11e0
[  306.091594]  ? check_preemption_disabled+0x48/0x280
[  306.096630]  ? __this_cpu_preempt_check+0x1c/0x20
[  306.101477]  ? __bpf_redirect+0x54b/0xb20
[  306.105639]  bpf_clone_redirect+0xb9/0x490
[  306.109887]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  306.114911]  ? __sched_text_start+0x8/0x8
[  306.119080]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  306.123856]  ? find_held_lock+0x36/0x1c0
[  306.127946]  ? lock_acquire+0x1ed/0x520
[  306.131951]  ? bpf_test_run+0x3cb/0x780
[  306.135946]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.141493]  ? check_preemption_disabled+0x48/0x280
[  306.146531]  ? kasan_check_read+0x11/0x20
[  306.150690]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.155968]  ? rcu_softirq_qs+0x20/0x20
[  306.159956]  ? preempt_schedule+0x4d/0x60
[  306.164113]  ? ___preempt_schedule+0x16/0x18
[  306.168542]  ? bpf_test_run+0x25d/0x780
[  306.172538]  ? netlink_diag_dump+0x2a0/0x2a0
[  306.176965]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  306.181737]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  306.186514]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  306.191372]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  306.196921]  ? fput+0x130/0x1a0
[  306.200217]  ? __bpf_prog_get+0x9b/0x290
[  306.204290]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  306.209134]  ? bpf_prog_test_run+0x130/0x1a0
[  306.213560]  ? __x64_sys_bpf+0x3d8/0x520
[  306.217641]  ? bpf_prog_get+0x20/0x20
[  306.221467]  ? do_syscall_64+0x1b9/0x820
[  306.225536]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  306.230912]  ? syscall_return_slowpath+0x5e0/0x5e0
[  306.235854]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  306.240705]  ? trace_hardirqs_on_caller+0x310/0x310
[  306.245728]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  306.250753]  ? prepare_exit_to_usermode+0x291/0x3b0
[  306.255781]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  306.260639]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  306.266026] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  306.266115] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  306.272970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  306.272976] Call Trace:
[  306.272984]  <IRQ>
[  306.273004]  dump_stack+0x244/0x39d
[  306.273021]  ? dump_stack_print_info.cold.1+0x20/0x20
[  306.273055]  warn_alloc.cold.116+0xb7/0x1bd
[  306.279601] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  306.288886]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  306.291448] syz-executor4 cpuset=syz4 mems_allowed=0
[  306.293599]  ? lock_downgrade+0x900/0x900
[  306.331229]  ? trace_hardirqs_off+0xb8/0x310
[  306.335655]  ? trace_hardirqs_off+0xb8/0x310
[  306.340089]  __alloc_pages_slowpath+0x26e8/0x2e10
[  306.344976]  ? warn_alloc+0x120/0x120
[  306.348786]  ? print_usage_bug+0xc0/0xc0
[  306.352849]  ? warn_alloc+0x120/0x120
[  306.356675]  ? warn_alloc+0x120/0x120
[  306.360486]  ? print_usage_bug+0xc0/0xc0
[  306.364567]  ? kvm_clock_read+0x18/0x30
[  306.368548]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  306.373575]  ? print_usage_bug+0xc0/0xc0
[  306.377638]  ? __lock_acquire+0x62f/0x4c20
[  306.381882]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.387423]  ? should_fail+0x22d/0xd01
[  306.391313]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.396600]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  306.401712]  ? __lock_acquire+0x62f/0x4c20
[  306.405963]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  306.411069]  ? __lock_acquire+0x62f/0x4c20
[  306.415317]  ? should_fail+0x22d/0xd01
[  306.419209]  ? rcu_irq_exit+0x1a2/0x390
[  306.423198]  ? mark_held_locks+0x130/0x130
[  306.427445]  ? mark_held_locks+0x130/0x130
[  306.431691]  ? mark_held_locks+0xc7/0x130
[  306.435841]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  306.440880]  ? zap_class+0x640/0x640
[  306.444612]  ? print_usage_bug+0xc0/0xc0
[  306.448700]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.454241]  ? check_preemption_disabled+0x48/0x280
[  306.459273]  ? __lock_is_held+0xb5/0x140
[  306.463352]  __alloc_pages_nodemask+0xa80/0xde0
[  306.468046]  ? zap_class+0x640/0x640
[  306.471771]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  306.476810]  ? find_held_lock+0x36/0x1c0
[  306.480890]  ? ____cache_alloc_node+0x1c7/0x1e0
[  306.485560]  ? lock_downgrade+0x900/0x900
[  306.489722]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.495272]  cache_grow_begin+0xa5/0x8c0
[  306.499336]  ? do_raw_spin_unlock+0xa7/0x330
[  306.503755]  fallback_alloc+0x204/0x2e0
[  306.507739]  ____cache_alloc_node+0x1c7/0x1e0
[  306.512245]  kmem_cache_alloc_node+0xe3/0x730
[  306.516745]  ? ipv6_get_ifaddr+0x42e/0x620
[  306.520999]  __alloc_skb+0x119/0x770
[  306.524741]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.530031]  ? netdev_alloc_frag+0x1f0/0x1f0
[  306.534447]  ? lock_downgrade+0x900/0x900
[  306.538609]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.544162]  ? refcount_sub_and_test_checked+0x203/0x310
[  306.549635]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  306.555092]  ? addrconf_rs_timer+0x690/0x690
[  306.559521]  ndisc_alloc_skb+0x144/0x340
[  306.563597]  ndisc_send_rs+0x331/0x6e0
[  306.567495]  addrconf_rs_timer+0x314/0x690
[  306.571741]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.575989]  call_timer_fn+0x272/0x920
[  306.579883]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.584136]  ? process_timeout+0x40/0x40
[  306.588222]  ? mark_held_locks+0xc7/0x130
[  306.592376]  ? _raw_spin_unlock_irq+0x27/0x80
[  306.596875]  ? _raw_spin_unlock_irq+0x27/0x80
[  306.601376]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.605620]  ? lockdep_hardirqs_on+0x296/0x5b0
[  306.610207]  ? trace_hardirqs_on+0xbd/0x310
[  306.614534]  ? kasan_check_read+0x11/0x20
[  306.618684]  ? __run_timers+0x7da/0xc70
[  306.622667]  ? trace_hardirqs_off_caller+0x310/0x310
[  306.627780]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.632037]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  306.636288]  __run_timers+0x7e5/0xc70
[  306.640104]  ? timer_fixup_init+0x70/0x70
[  306.644258]  ? kasan_check_read+0x11/0x20
[  306.648407]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.653685]  ? rcu_softirq_qs+0x20/0x20
[  306.657669]  ? mark_held_locks+0xc7/0x130
[  306.661824]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  306.666588]  ? retint_kernel+0x2d/0x2d
[  306.670478]  ? trace_hardirqs_on_caller+0xc0/0x310
[  306.675413]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  306.680179]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  306.685634]  ? zap_class+0x640/0x640
[  306.689363]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.694908]  ? check_preemption_disabled+0x48/0x280
[  306.699954]  ? __lock_is_held+0xb5/0x140
[  306.704023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.709581]  ? check_preemption_disabled+0x48/0x280
[  306.714633]  run_timer_softirq+0x52/0xb0
[  306.718704]  ? rcu_read_lock_sched_held+0x14f/0x180
[  306.723725]  __do_softirq+0x308/0xb7e
[  306.727532]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  306.732036]  ? lock_downgrade+0x900/0x900
[  306.736192]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  306.741312]  ? pvclock_read_flags+0x160/0x160
[  306.745813]  ? lapic_next_event+0x5a/0x90
[  306.750352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.755908]  ? kvm_clock_read+0x18/0x30
[  306.759900]  ? kvm_sched_clock_read+0x9/0x20
[  306.764324]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.769870]  ? check_preemption_disabled+0x48/0x280
[  306.774906]  irq_exit+0x17f/0x1c0
[  306.778373]  smp_apic_timer_interrupt+0x1cb/0x760
[  306.783221]  ? smp_call_function_single_interrupt+0x650/0x650
[  306.789109]  ? interrupt_entry+0xb5/0xc0
[  306.793175]  ? trace_hardirqs_off_caller+0xbb/0x310
[  306.798192]  ? trace_hardirqs_off_caller+0xbb/0x310
[  306.803216]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  306.808067]  ? trace_hardirqs_on_caller+0x310/0x310
[  306.813092]  ? trace_hardirqs_on_caller+0x310/0x310
[  306.818115]  ? task_prio+0x50/0x50
[  306.821660]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.827207]  ? check_preemption_disabled+0x48/0x280
[  306.832253]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  306.837118]  apic_timer_interrupt+0xf/0x20
[  306.841347]  </IRQ>
[  306.843588] RIP: 0010:dump_stack+0x358/0x39d
[  306.848010] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  306.866938] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  306.874661] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  306.881941] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  306.889230] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  306.896503] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  306.903777] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  306.911168]  ? dump_stack+0x34f/0x39d
[  306.914993]  ? dump_stack_print_info.cold.1+0x20/0x20
[  306.920199]  ? mark_held_locks+0x130/0x130
[  306.924439]  ? mark_held_locks+0x130/0x130
[  306.928683]  dump_header+0x27b/0xf72
[  306.932414]  ? pagefault_out_of_memory+0x197/0x197
[  306.937358]  ? __lock_acquire+0x62f/0x4c20
[  306.941603]  ? percpu_ref_get_many+0x240/0x240
[  306.946192]  ? print_usage_bug+0xc0/0xc0
[  306.950260]  ? zap_class+0x640/0x640
[  306.953984]  ? print_usage_bug+0xc0/0xc0
[  306.958053]  ? print_usage_bug+0xc0/0xc0
[  306.962125]  ? zap_class+0x640/0x640
[  306.965846]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.971398]  ? find_held_lock+0x36/0x1c0
[  306.975489]  ? mark_held_locks+0xc7/0x130
[  306.979643]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  306.984747]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  306.989862]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  306.994460]  ? trace_hardirqs_on+0xbd/0x310
[  306.998787]  ? kasan_check_read+0x11/0x20
[  307.002953]  ? ___ratelimit+0x3b4/0x672
[  307.006944]  ? trace_hardirqs_off_caller+0x310/0x310
[  307.012059]  ? trace_hardirqs_on+0x310/0x310
[  307.016479]  ? lock_downgrade+0x900/0x900
[  307.020640]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  307.025760]  ? ___ratelimit+0x3b9/0x672
[  307.029738]  ? idr_get_free+0xf70/0xf70
[  307.033716]  ? find_held_lock+0x36/0x1c0
[  307.037791]  oom_kill_process.cold.27+0x10/0x903
[  307.042590]  ? zap_class+0x640/0x640
[  307.046311]  ? check_preemption_disabled+0x48/0x280
[  307.051338]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.056273]  ? kasan_check_read+0x11/0x20
[  307.060426]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.065708]  ? oom_evaluate_task+0x540/0x540
[  307.070130]  ? find_held_lock+0x36/0x1c0
[  307.074204]  ? out_of_memory+0x974/0x1430
[  307.078371]  ? lock_downgrade+0x900/0x900
[  307.082525]  ? check_preemption_disabled+0x48/0x280
[  307.087550]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.092487]  ? kasan_check_read+0x11/0x20
[  307.096645]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.101939]  ? rcu_softirq_qs+0x20/0x20
[  307.105924]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.111480]  ? oom_evaluate_task+0x302/0x540
[  307.115902]  out_of_memory+0xa84/0x1430
[  307.119911]  ? oom_killer_disable+0x3a0/0x3a0
[  307.124428]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  307.129366]  ? __ww_mutex_check_waiters+0x160/0x160
[  307.134400]  __alloc_pages_slowpath+0x2354/0x2e10
[  307.139275]  ? warn_alloc+0x120/0x120
[  307.143083]  ? mark_held_locks+0x130/0x130
[  307.147340]  ? find_get_entry+0xaae/0x1120
[  307.151595]  ? filemap_map_pages+0x1a20/0x1a20
[  307.156187]  ? zap_class+0x640/0x640
[  307.159915]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.165467]  ? check_preemption_disabled+0x48/0x280
[  307.170490]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.176041]  ? should_fail+0x22d/0xd01
[  307.179946]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  307.185063]  ? zap_class+0x640/0x640
[  307.188804]  ? __lock_is_held+0xb5/0x140
[  307.192880]  ? mark_held_locks+0x130/0x130
[  307.197123]  ? lock_release+0xa00/0xa00
[  307.201102]  ? perf_trace_sched_process_exec+0x860/0x860
[  307.206563]  ? xa_load+0x2ba/0x460
[  307.210113]  ? lock_downgrade+0x900/0x900
[  307.214270]  ? __might_sleep+0x95/0x190
[  307.218255]  __alloc_pages_nodemask+0xa80/0xde0
[  307.222946]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  307.227977]  ? __page_cache_alloc+0x191/0x5c0
[  307.232474]  ? xa_load+0x2e1/0x460
[  307.236037]  ? xa_clear_mark+0x40/0x40
[  307.239943]  ? zap_class+0x640/0x640
[  307.243677]  ? zap_class+0x640/0x640
[  307.247410]  ? zap_class+0x640/0x640
[  307.251129]  ? __do_page_cache_readahead+0x663/0x810
[  307.256243]  ? find_held_lock+0x36/0x1c0
[  307.260313]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  307.265875]  alloc_pages_current+0x173/0x350
[  307.270301]  __page_cache_alloc+0x38c/0x5c0
[  307.274623]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.279559]  ? kasan_check_read+0x11/0x20
[  307.283722]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.289013]  ? generic_perform_write+0x6a0/0x6a0
[  307.293782]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.299327]  ? check_preemption_disabled+0x48/0x280
[  307.304359]  filemap_fault+0x1595/0x25f0
[  307.308440]  ? __lock_page_or_retry+0xa00/0xa00
[  307.313119]  ? mark_held_locks+0x130/0x130
[  307.317373]  ? filemap_map_pages+0xd6b/0x1a20
[  307.321881]  ? lock_downgrade+0x900/0x900
[  307.326044]  ? check_preemption_disabled+0x48/0x280
[  307.331116]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.336068]  ? kasan_check_read+0x11/0x20
[  307.340253]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.345535]  ? rcu_softirq_qs+0x20/0x20
[  307.349530]  ? filemap_map_pages+0xd92/0x1a20
[  307.354050]  ? find_get_entries_tag+0x1400/0x1400
[  307.358908]  ? find_held_lock+0x36/0x1c0
[  307.363006]  ? lock_acquire+0x1ed/0x520
[  307.366992]  ? ext4_filemap_fault+0x7a/0xad
[  307.371327]  ? lock_release+0xa00/0xa00
[  307.375305]  ? perf_trace_sched_process_exec+0x860/0x860
[  307.380765]  ? print_usage_bug+0xc0/0xc0
[  307.384827]  ? print_usage_bug+0xc0/0xc0
[  307.388904]  ? down_read+0x8d/0x120
[  307.392537]  ? ext4_filemap_fault+0x7a/0xad
[  307.396864]  ? __down_interruptible+0x700/0x700
[  307.401547]  ext4_filemap_fault+0x82/0xad
[  307.405699]  __do_fault+0x100/0x6b0
[  307.409328]  ? find_held_lock+0x36/0x1c0
[  307.413442]  ? pmd_devmap_trans_unstable+0x220/0x220
[  307.418550]  ? mark_held_locks+0x130/0x130
[  307.422791]  ? mark_held_locks+0x130/0x130
[  307.427047]  ? kasan_check_read+0x11/0x20
[  307.431205]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.436752]  __handle_mm_fault+0x3ea0/0x5be0
[  307.441166]  ? perf_trace_lock+0x7a0/0x7a0
[  307.445421]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  307.450274]  ? __switch_to_asm+0x34/0x70
[  307.454340]  ? __switch_to_asm+0x34/0x70
[  307.458421]  ? zap_class+0x640/0x640
[  307.462135]  ? zap_class+0x640/0x640
[  307.465850]  ? __x64_sys_futex+0x53e/0x6a0
[  307.470098]  ? find_held_lock+0x36/0x1c0
[  307.474179]  ? handle_mm_fault+0x42a/0xc70
[  307.478429]  ? lock_downgrade+0x900/0x900
[  307.482586]  ? check_preemption_disabled+0x48/0x280
[  307.487612]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  307.492547]  ? kasan_check_read+0x11/0x20
[  307.496713]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.502000]  ? rcu_softirq_qs+0x20/0x20
[  307.505988]  ? trace_hardirqs_off_caller+0x310/0x310
[  307.511111]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.516669]  ? check_preemption_disabled+0x48/0x280
[  307.521713]  handle_mm_fault+0x54f/0xc70
[  307.525785]  ? __handle_mm_fault+0x5be0/0x5be0
[  307.530379]  ? find_vma+0x34/0x190
[  307.533939]  __do_page_fault+0x5e8/0xe60
[  307.538020]  ? trace_hardirqs_off+0xb8/0x310
[  307.542454]  do_page_fault+0xf2/0x7e0
[  307.546261]  ? vmalloc_sync_all+0x30/0x30
[  307.550416]  ? error_entry+0x70/0xd0
[  307.554136]  ? trace_hardirqs_off_caller+0xbb/0x310
[  307.559156]  ? trace_hardirqs_on_caller+0xc0/0x310
[  307.564090]  ? syscall_return_slowpath+0x5e0/0x5e0
[  307.569035]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.573894]  ? trace_hardirqs_on_caller+0x310/0x310
[  307.578920]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  307.584392]  ? prepare_exit_to_usermode+0x291/0x3b0
[  307.589413]  ? page_fault+0x8/0x30
[  307.592967]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.597817]  ? page_fault+0x8/0x30
[  307.601365]  page_fault+0x1e/0x30
[  307.604818] RIP: 0033:0x44b69a
[  307.608032] Code: Bad RIP value.
[  307.611391] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  307.616753] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  307.624033] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  307.631316] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  307.638585] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  307.645856] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  307.653156] warn_alloc_show_mem: 1 callbacks suppressed
[  307.653169] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  307.653171] Mem-Info:
[  307.653204] active_anon:47227 inactive_anon:190 isolated_anon:0
[  307.653204]  active_file:11 inactive_file:14 isolated_file:0
[  307.653204]  unevictable:0 dirty:0 writeback:0 unstable:0
[  307.653204]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  307.653204]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  307.653204]  free:13756 free_pcp:235 free_cma:0
[  307.658559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  307.665770] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  307.668187] Call Trace:
[  307.701077] 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
[  307.710439]  <IRQ>
[  307.737956] lowmem_reserve[]: 0 2818 6321 6321
[  307.740560]  dump_stack+0x244/0x39d
[  307.766670] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  307.768841]  ? dump_stack_print_info.cold.1+0x20/0x20
[  307.773382] lowmem_reserve[]: 0 0 3503 3503
[  307.777036]  warn_alloc.cold.116+0xb7/0x1bd
[  307.804348] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  307.809560]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  307.813844] lowmem_reserve[]: 0 0 0 0
[  307.818183]  ? lock_downgrade+0x900/0x900
[  307.847060] 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
[  307.851923]  ? trace_hardirqs_off+0xb8/0x310
[  307.855694] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  307.859860]  ? trace_hardirqs_off+0xb8/0x310
[  307.873364] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  307.877798]  __alloc_pages_slowpath+0x26e8/0x2e10
[  307.893169] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  307.897611]  ? warn_alloc+0x120/0x120
[  307.912670] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  307.917526]  ? print_usage_bug+0xc0/0xc0
[  307.926339] 269 total pagecache pages
[  307.930170]  ? warn_alloc+0x120/0x120
[  307.938729] 0 pages in swap cache
[  307.942808]  ? warn_alloc+0x120/0x120
[  307.946601] Swap cache stats: add 0, delete 0, find 0/0
[  307.950404]  ? print_usage_bug+0xc0/0xc0
[  307.953825] Free swap  = 0kB
[  307.957631]  ? print_usage_bug+0xc0/0xc0
[  307.962962] Total swap = 0kB
[  307.967044]  ? __lock_acquire+0x62f/0x4c20
[  307.970044] 1965979 pages RAM
[  307.974109]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.977096] 0 pages HighMem/MovableOnly
[  307.977105] 342853 pages reserved
[  307.981345]  ? should_fail+0x22d/0xd01
[  307.984417] 0 pages cma reserved
[  307.984541] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  307.989979]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  307.994200] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  307.997413]  ? __lock_acquire+0x62f/0x4c20
[  308.001278] syz-fuzzer cpuset=/ mems_allowed=0
[  308.004653]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  308.040337]  ? __lock_acquire+0x62f/0x4c20
[  308.044585]  ? should_fail+0x22d/0xd01
[  308.048488]  ? find_held_lock+0x36/0x1c0
[  308.052570]  ? mark_held_locks+0x130/0x130
[  308.056819]  ? mark_held_locks+0x130/0x130
[  308.061063]  ? zap_class+0x640/0x640
[  308.064788]  ? zap_class+0x640/0x640
[  308.068508]  ? print_usage_bug+0xc0/0xc0
[  308.072574]  ? do_raw_spin_unlock+0xa7/0x330
[  308.076988]  ? zap_class+0x640/0x640
[  308.080708]  ? print_usage_bug+0xc0/0xc0
[  308.084785]  ? wq_watchdog_touch+0x9c/0xfe
[  308.089036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.094588]  ? check_preemption_disabled+0x48/0x280
[  308.099627]  ? __lock_is_held+0xb5/0x140
[  308.103707]  __alloc_pages_nodemask+0xa80/0xde0
[  308.108384]  ? zap_class+0x640/0x640
[  308.112118]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  308.117158]  ? find_held_lock+0x36/0x1c0
[  308.121238]  ? ____cache_alloc_node+0x1c7/0x1e0
[  308.125921]  ? lock_downgrade+0x900/0x900
[  308.130092]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.135650]  cache_grow_begin+0xa5/0x8c0
[  308.139724]  ? do_raw_spin_unlock+0xa7/0x330
[  308.144153]  fallback_alloc+0x204/0x2e0
[  308.148141]  ____cache_alloc_node+0x1c7/0x1e0
[  308.152649]  kmem_cache_alloc_node+0xe3/0x730
[  308.157152]  ? ipv6_get_ifaddr+0x42e/0x620
[  308.161404]  __alloc_skb+0x119/0x770
[  308.165122]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.170413]  ? netdev_alloc_frag+0x1f0/0x1f0
[  308.174833]  ? lock_downgrade+0x900/0x900
[  308.178995]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.184544]  ? refcount_sub_and_test_checked+0x203/0x310
[  308.190006]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  308.195465]  ? addrconf_rs_timer+0x690/0x690
[  308.199899]  ndisc_alloc_skb+0x144/0x340
[  308.203984]  ndisc_send_rs+0x331/0x6e0
[  308.207882]  addrconf_rs_timer+0x314/0x690
[  308.212128]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.216381]  call_timer_fn+0x272/0x920
[  308.220283]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.224537]  ? process_timeout+0x40/0x40
[  308.228619]  ? __run_timers+0x7da/0xc70
[  308.232606]  ? _raw_spin_unlock_irq+0x27/0x80
[  308.237111]  ? _raw_spin_unlock_irq+0x27/0x80
[  308.241616]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.245858]  ? lockdep_hardirqs_on+0x296/0x5b0
[  308.250448]  ? trace_hardirqs_on+0xbd/0x310
[  308.254776]  ? kasan_check_read+0x11/0x20
[  308.258933]  ? __run_timers+0x7da/0xc70
[  308.262957]  ? trace_hardirqs_off_caller+0x310/0x310
[  308.268080]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.272328]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  308.276571]  __run_timers+0x7e5/0xc70
[  308.280391]  ? timer_fixup_init+0x70/0x70
[  308.284557]  ? lock_acquire+0x1ed/0x520
[  308.288546]  ? zap_class+0x640/0x640
[  308.292277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.297840]  ? kasan_check_read+0x11/0x20
[  308.301994]  ? do_raw_spin_lock+0x14f/0x350
[  308.306330]  ? find_held_lock+0x36/0x1c0
[  308.310400]  ? zap_class+0x640/0x640
[  308.314121]  ? pvclock_read_flags+0x160/0x160
[  308.318622]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.324169]  ? check_preemption_disabled+0x48/0x280
[  308.329208]  ? __lock_is_held+0xb5/0x140
[  308.333292]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.338843]  ? check_preemption_disabled+0x48/0x280
[  308.343875]  run_timer_softirq+0x52/0xb0
[  308.347954]  ? rcu_read_lock_sched_held+0x14f/0x180
[  308.352983]  __do_softirq+0x308/0xb7e
[  308.356798]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  308.361301]  ? lock_downgrade+0x900/0x900
[  308.365471]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  308.370591]  ? pvclock_read_flags+0x160/0x160
[  308.375097]  ? lapic_next_event+0x5a/0x90
[  308.379255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.384808]  ? kvm_clock_read+0x18/0x30
[  308.388788]  ? kvm_sched_clock_read+0x9/0x20
[  308.393207]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.398752]  ? check_preemption_disabled+0x48/0x280
[  308.403783]  irq_exit+0x17f/0x1c0
[  308.407248]  smp_apic_timer_interrupt+0x1cb/0x760
[  308.412114]  ? smp_call_function_single_interrupt+0x159/0x650
[  308.418008]  ? smp_call_function_single_interrupt+0x650/0x650
[  308.423901]  ? interrupt_entry+0xb5/0xc0
[  308.427989]  ? trace_hardirqs_off_caller+0xbb/0x310
[  308.433008]  ? trace_hardirqs_off_caller+0xbb/0x310
[  308.438176]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.443027]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.448044]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.453081]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.457947]  apic_timer_interrupt+0xf/0x20
[  308.462179]  </IRQ>
[  308.464423] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  308.469360] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  308.488277] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  308.496037] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  308.503319] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  308.510605] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  308.517883] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  308.525165] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  308.532498]  skb_clone+0x1bb/0x500
[  308.536059]  ? skb_split+0x11e0/0x11e0
[  308.540086]  ? check_preemption_disabled+0x48/0x280
[  308.545115]  ? __this_cpu_preempt_check+0x1c/0x20
[  308.549967]  ? __bpf_redirect+0x54b/0xb20
[  308.554127]  bpf_clone_redirect+0xb9/0x490
[  308.558383]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  308.563412]  ? __sched_text_start+0x8/0x8
[  308.567577]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  308.572350]  ? find_held_lock+0x36/0x1c0
[  308.576423]  ? lock_acquire+0x1ed/0x520
[  308.580420]  ? bpf_test_run+0x3cb/0x780
[  308.584417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.589970]  ? check_preemption_disabled+0x48/0x280
[  308.595011]  ? kasan_check_read+0x11/0x20
[  308.599193]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.604478]  ? rcu_softirq_qs+0x20/0x20
[  308.608463]  ? preempt_schedule+0x4d/0x60
[  308.613059]  ? ___preempt_schedule+0x16/0x18
[  308.617490]  ? bpf_test_run+0x25d/0x780
[  308.621485]  ? netlink_diag_dump+0x2a0/0x2a0
[  308.625901]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  308.630677]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  308.635448]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  308.640299]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  308.645841]  ? fput+0x130/0x1a0
[  308.649129]  ? __bpf_prog_get+0x9b/0x290
[  308.653199]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  308.658048]  ? bpf_prog_test_run+0x130/0x1a0
[  308.662469]  ? __x64_sys_bpf+0x3d8/0x520
[  308.666542]  ? bpf_prog_get+0x20/0x20
[  308.670367]  ? do_syscall_64+0x1b9/0x820
[  308.674433]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  308.679810]  ? syscall_return_slowpath+0x5e0/0x5e0
[  308.684749]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.689603]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.694629]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  308.699682]  ? prepare_exit_to_usermode+0x291/0x3b0
[  308.704715]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.709575]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  308.714972] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  308.715062] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  308.721914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  308.721920] Call Trace:
[  308.721935]  <IRQ>
[  308.721957]  dump_stack+0x244/0x39d
[  308.721974]  ? dump_stack_print_info.cold.1+0x20/0x20
[  308.722003]  warn_alloc.cold.116+0xb7/0x1bd
[  308.728563] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  308.737848]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  308.740416] syz-executor4 cpuset=syz4 mems_allowed=0
[  308.742562]  ? lock_downgrade+0x900/0x900
[  308.780619]  ? trace_hardirqs_off+0xb8/0x310
[  308.785044]  ? trace_hardirqs_off+0xb8/0x310
[  308.789470]  __alloc_pages_slowpath+0x26e8/0x2e10
[  308.794370]  ? warn_alloc+0x120/0x120
[  308.798186]  ? print_usage_bug+0xc0/0xc0
[  308.802254]  ? warn_alloc+0x120/0x120
[  308.806075]  ? warn_alloc+0x120/0x120
[  308.809887]  ? print_usage_bug+0xc0/0xc0
[  308.813966]  ? kvm_clock_read+0x18/0x30
[  308.817956]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  308.822985]  ? print_usage_bug+0xc0/0xc0
[  308.827059]  ? __lock_acquire+0x62f/0x4c20
[  308.831312]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.836858]  ? should_fail+0x22d/0xd01
[  308.840754]  ? __lock_acquire+0x62f/0x4c20
[  308.845001]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  308.850119]  ? __lock_acquire+0x62f/0x4c20
[  308.854364]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  308.859469]  ? __lock_acquire+0x62f/0x4c20
[  308.863722]  ? should_fail+0x22d/0xd01
[  308.867625]  ? mark_held_locks+0x130/0x130
[  308.871872]  ? mark_held_locks+0x130/0x130
[  308.876110]  ? try_to_wake_up+0x11c/0x1490
[  308.880352]  ? lock_downgrade+0x900/0x900
[  308.884508]  ? zap_class+0x640/0x640
[  308.888225]  ? print_usage_bug+0xc0/0xc0
[  308.892294]  ? trace_hardirqs_off+0xb8/0x310
[  308.896708]  ? kasan_check_read+0x11/0x20
[  308.900864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.906411]  ? check_preemption_disabled+0x48/0x280
[  308.911445]  ? __lock_is_held+0xb5/0x140
[  308.915522]  __alloc_pages_nodemask+0xa80/0xde0
[  308.920195]  ? zap_class+0x640/0x640
[  308.923919]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  308.928967]  ? find_held_lock+0x36/0x1c0
[  308.933059]  ? ____cache_alloc_node+0x1c7/0x1e0
[  308.937734]  ? lock_downgrade+0x900/0x900
[  308.941900]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.947458]  cache_grow_begin+0xa5/0x8c0
[  308.951523]  ? do_raw_spin_unlock+0xa7/0x330
[  308.955962]  fallback_alloc+0x204/0x2e0
[  308.959953]  ____cache_alloc_node+0x1c7/0x1e0
[  308.964459]  kmem_cache_alloc_node+0xe3/0x730
[  308.968967]  ? ipv6_get_ifaddr+0x42e/0x620
[  308.973216]  __alloc_skb+0x119/0x770
[  308.976952]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.982249]  ? netdev_alloc_frag+0x1f0/0x1f0
[  308.986669]  ? lock_downgrade+0x900/0x900
[  308.990830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.996379]  ? refcount_sub_and_test_checked+0x203/0x310
[  309.001840]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  309.007296]  ? addrconf_rs_timer+0x690/0x690
[  309.011721]  ndisc_alloc_skb+0x144/0x340
[  309.015795]  ndisc_send_rs+0x331/0x6e0
[  309.019694]  addrconf_rs_timer+0x314/0x690
[  309.023943]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.028196]  call_timer_fn+0x272/0x920
[  309.032088]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.036329]  ? process_timeout+0x40/0x40
[  309.040408]  ? mark_held_locks+0xc7/0x130
[  309.044562]  ? _raw_spin_unlock_irq+0x27/0x80
[  309.049067]  ? _raw_spin_unlock_irq+0x27/0x80
[  309.053569]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.057815]  ? lockdep_hardirqs_on+0x296/0x5b0
[  309.062404]  ? trace_hardirqs_on+0xbd/0x310
[  309.066746]  ? kasan_check_read+0x11/0x20
[  309.070899]  ? __run_timers+0x7da/0xc70
[  309.074889]  ? trace_hardirqs_off_caller+0x310/0x310
[  309.080058]  ? __queue_work+0x1440/0x1440
[  309.084221]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.088465]  __run_timers+0x7e5/0xc70
[  309.092288]  ? timer_fixup_init+0x70/0x70
[  309.096443]  ? kasan_check_read+0x11/0x20
[  309.100592]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.105876]  ? rcu_softirq_qs+0x20/0x20
[  309.109865]  ? mark_held_locks+0xc7/0x130
[  309.114027]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  309.118796]  ? retint_kernel+0x2d/0x2d
[  309.122691]  ? trace_hardirqs_on_caller+0xc0/0x310
[  309.127630]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  309.132397]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  309.137878]  ? zap_class+0x640/0x640
[  309.141601]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.147147]  ? check_preemption_disabled+0x48/0x280
[  309.152180]  ? __lock_is_held+0xb5/0x140
[  309.156255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.161800]  ? check_preemption_disabled+0x48/0x280
[  309.166825]  run_timer_softirq+0x52/0xb0
[  309.170897]  ? rcu_read_lock_sched_held+0x14f/0x180
[  309.175940]  __do_softirq+0x308/0xb7e
[  309.179752]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  309.184291]  ? lock_downgrade+0x900/0x900
[  309.188451]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  309.193568]  ? pvclock_read_flags+0x160/0x160
[  309.198071]  ? lapic_next_event+0x5a/0x90
[  309.202227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.207772]  ? kvm_clock_read+0x18/0x30
[  309.211752]  ? kvm_sched_clock_read+0x9/0x20
[  309.216168]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.221716]  ? check_preemption_disabled+0x48/0x280
[  309.226748]  irq_exit+0x17f/0x1c0
[  309.230220]  smp_apic_timer_interrupt+0x1cb/0x760
[  309.235072]  ? smp_call_function_single_interrupt+0x650/0x650
[  309.240966]  ? interrupt_entry+0xb5/0xc0
[  309.245044]  ? trace_hardirqs_off_caller+0xbb/0x310
[  309.250068]  ? trace_hardirqs_off_caller+0xbb/0x310
[  309.255097]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  309.259952]  ? trace_hardirqs_on_caller+0x310/0x310
[  309.264974]  ? trace_hardirqs_on_caller+0x310/0x310
[  309.270007]  ? task_prio+0x50/0x50
[  309.273575]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.279125]  ? check_preemption_disabled+0x48/0x280
[  309.284177]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  309.289048]  apic_timer_interrupt+0xf/0x20
[  309.293284]  </IRQ>
[  309.295529] RIP: 0010:dump_stack+0x358/0x39d
[  309.299949] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  309.318866] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  309.326586] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  309.333860] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  309.341136] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  309.348417] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  309.355691] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  309.362995]  ? dump_stack+0x34f/0x39d
[  309.366819]  ? dump_stack_print_info.cold.1+0x20/0x20
[  309.372025]  ? mark_held_locks+0x130/0x130
[  309.376271]  ? mark_held_locks+0x130/0x130
[  309.380515]  dump_header+0x27b/0xf72
[  309.384261]  ? pagefault_out_of_memory+0x197/0x197
[  309.389203]  ? __lock_acquire+0x62f/0x4c20
[  309.393443]  ? percpu_ref_get_many+0x240/0x240
[  309.398040]  ? print_usage_bug+0xc0/0xc0
[  309.402112]  ? zap_class+0x640/0x640
[  309.405831]  ? print_usage_bug+0xc0/0xc0
[  309.409898]  ? print_usage_bug+0xc0/0xc0
[  309.413973]  ? zap_class+0x640/0x640
[  309.417699]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.423250]  ? find_held_lock+0x36/0x1c0
[  309.427324]  ? mark_held_locks+0xc7/0x130
[  309.431480]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  309.436587]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  309.441696]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  309.446287]  ? trace_hardirqs_on+0xbd/0x310
[  309.450617]  ? kasan_check_read+0x11/0x20
[  309.454791]  ? ___ratelimit+0x3b4/0x672
[  309.458772]  ? trace_hardirqs_off_caller+0x310/0x310
[  309.463882]  ? trace_hardirqs_on+0x310/0x310
[  309.468298]  ? lock_downgrade+0x900/0x900
[  309.472455]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  309.477567]  ? ___ratelimit+0x3b9/0x672
[  309.481543]  ? idr_get_free+0xf70/0xf70
[  309.485520]  ? find_held_lock+0x36/0x1c0
[  309.489595]  oom_kill_process.cold.27+0x10/0x903
[  309.494359]  ? zap_class+0x640/0x640
[  309.498079]  ? check_preemption_disabled+0x48/0x280
[  309.503105]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.508044]  ? kasan_check_read+0x11/0x20
[  309.512198]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.517480]  ? oom_evaluate_task+0x540/0x540
[  309.521898]  ? find_held_lock+0x36/0x1c0
[  309.525994]  ? out_of_memory+0x974/0x1430
[  309.530181]  ? lock_downgrade+0x900/0x900
[  309.534344]  ? check_preemption_disabled+0x48/0x280
[  309.539371]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.544311]  ? kasan_check_read+0x11/0x20
[  309.548464]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.553747]  ? rcu_softirq_qs+0x20/0x20
[  309.557740]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.563295]  ? oom_evaluate_task+0x302/0x540
[  309.567715]  out_of_memory+0xa84/0x1430
[  309.571702]  ? oom_killer_disable+0x3a0/0x3a0
[  309.576206]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  309.581149]  ? __ww_mutex_check_waiters+0x160/0x160
[  309.586181]  __alloc_pages_slowpath+0x2354/0x2e10
[  309.591062]  ? warn_alloc+0x120/0x120
[  309.594867]  ? mark_held_locks+0x130/0x130
[  309.599114]  ? find_get_entry+0xaae/0x1120
[  309.603366]  ? filemap_map_pages+0x1a20/0x1a20
[  309.607966]  ? zap_class+0x640/0x640
[  309.611701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.617244]  ? check_preemption_disabled+0x48/0x280
[  309.622266]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.627813]  ? should_fail+0x22d/0xd01
[  309.631706]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  309.636817]  ? zap_class+0x640/0x640
[  309.640569]  ? __lock_is_held+0xb5/0x140
[  309.644644]  ? mark_held_locks+0x130/0x130
[  309.648883]  ? lock_release+0xa00/0xa00
[  309.652864]  ? perf_trace_sched_process_exec+0x860/0x860
[  309.658321]  ? xa_load+0x2ba/0x460
[  309.661869]  ? lock_downgrade+0x900/0x900
[  309.666026]  ? __might_sleep+0x95/0x190
[  309.670022]  __alloc_pages_nodemask+0xa80/0xde0
[  309.674717]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  309.679740]  ? __page_cache_alloc+0x191/0x5c0
[  309.684245]  ? xa_load+0x2e1/0x460
[  309.687789]  ? xa_clear_mark+0x40/0x40
[  309.691688]  ? zap_class+0x640/0x640
[  309.695411]  ? zap_class+0x640/0x640
[  309.699130]  ? zap_class+0x640/0x640
[  309.702849]  ? __do_page_cache_readahead+0x663/0x810
[  309.707968]  ? find_held_lock+0x36/0x1c0
[  309.712045]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  309.717596]  alloc_pages_current+0x173/0x350
[  309.722019]  __page_cache_alloc+0x38c/0x5c0
[  309.726350]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.731283]  ? kasan_check_read+0x11/0x20
[  309.735435]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.740719]  ? generic_perform_write+0x6a0/0x6a0
[  309.745482]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.751026]  ? check_preemption_disabled+0x48/0x280
[  309.756070]  filemap_fault+0x1595/0x25f0
[  309.760151]  ? __lock_page_or_retry+0xa00/0xa00
[  309.764827]  ? mark_held_locks+0x130/0x130
[  309.769077]  ? filemap_map_pages+0xd6b/0x1a20
[  309.773577]  ? lock_downgrade+0x900/0x900
[  309.777731]  ? check_preemption_disabled+0x48/0x280
[  309.782851]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.787788]  ? kasan_check_read+0x11/0x20
[  309.791947]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.797229]  ? rcu_softirq_qs+0x20/0x20
[  309.801223]  ? filemap_map_pages+0xd92/0x1a20
[  309.805739]  ? find_get_entries_tag+0x1400/0x1400
[  309.810589]  ? find_held_lock+0x36/0x1c0
[  309.814684]  ? lock_acquire+0x1ed/0x520
[  309.818658]  ? ext4_filemap_fault+0x7a/0xad
[  309.822991]  ? lock_release+0xa00/0xa00
[  309.826968]  ? perf_trace_sched_process_exec+0x860/0x860
[  309.832423]  ? print_usage_bug+0xc0/0xc0
[  309.836490]  ? print_usage_bug+0xc0/0xc0
[  309.840568]  ? down_read+0x8d/0x120
[  309.844201]  ? ext4_filemap_fault+0x7a/0xad
[  309.848533]  ? __down_interruptible+0x700/0x700
[  309.853216]  ext4_filemap_fault+0x82/0xad
[  309.857375]  __do_fault+0x100/0x6b0
[  309.861006]  ? find_held_lock+0x36/0x1c0
[  309.865095]  ? pmd_devmap_trans_unstable+0x220/0x220
[  309.870213]  ? mark_held_locks+0x130/0x130
[  309.874458]  ? mark_held_locks+0x130/0x130
[  309.878719]  ? kasan_check_read+0x11/0x20
[  309.883000]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.888555]  __handle_mm_fault+0x3ea0/0x5be0
[  309.892973]  ? perf_trace_lock+0x7a0/0x7a0
[  309.897225]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  309.902080]  ? __switch_to_asm+0x34/0x70
[  309.906140]  ? __switch_to_asm+0x34/0x70
[  309.910220]  ? zap_class+0x640/0x640
[  309.913947]  ? zap_class+0x640/0x640
[  309.917667]  ? __x64_sys_futex+0x53e/0x6a0
[  309.921913]  ? find_held_lock+0x36/0x1c0
[  309.926004]  ? handle_mm_fault+0x42a/0xc70
[  309.930256]  ? lock_downgrade+0x900/0x900
[  309.934409]  ? check_preemption_disabled+0x48/0x280
[  309.939432]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  309.944380]  ? kasan_check_read+0x11/0x20
[  309.948531]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.953813]  ? rcu_softirq_qs+0x20/0x20
[  309.957791]  ? trace_hardirqs_off_caller+0x310/0x310
[  309.962900]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.968453]  ? check_preemption_disabled+0x48/0x280
[  309.973482]  handle_mm_fault+0x54f/0xc70
[  309.977551]  ? __handle_mm_fault+0x5be0/0x5be0
[  309.982161]  ? find_vma+0x34/0x190
[  309.985711]  __do_page_fault+0x5e8/0xe60
[  309.989776]  ? trace_hardirqs_off+0xb8/0x310
[  309.994204]  do_page_fault+0xf2/0x7e0
[  309.998011]  ? vmalloc_sync_all+0x30/0x30
[  310.002170]  ? error_entry+0x70/0xd0
[  310.005894]  ? trace_hardirqs_off_caller+0xbb/0x310
[  310.010916]  ? trace_hardirqs_on_caller+0xc0/0x310
[  310.015859]  ? syscall_return_slowpath+0x5e0/0x5e0
[  310.020794]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.025656]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.030674]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  310.036135]  ? prepare_exit_to_usermode+0x291/0x3b0
[  310.041159]  ? page_fault+0x8/0x30
[  310.044704]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.049551]  ? page_fault+0x8/0x30
[  310.053102]  page_fault+0x1e/0x30
[  310.056561] RIP: 0033:0x44b69a
[  310.059769] Code: Bad RIP value.
[  310.063130] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  310.068492] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  310.075770] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  310.083051] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  310.090322] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  310.097595] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  310.104892] warn_alloc_show_mem: 1 callbacks suppressed
[  310.104904] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  310.104906] Mem-Info:
[  310.104948] active_anon:47227 inactive_anon:190 isolated_anon:0
[  310.104948]  active_file:11 inactive_file:14 isolated_file:0
[  310.104948]  unevictable:0 dirty:0 writeback:0 unstable:0
[  310.104948]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  310.104948]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  310.104948]  free:13756 free_pcp:235 free_cma:0
[  310.110295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  310.117511] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  310.119921] Call Trace:
[  310.152826] 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
[  310.162189]  <IRQ>
[  310.189699] lowmem_reserve[]: 0 2818 6321 6321
[  310.192304]  dump_stack+0x244/0x39d
[  310.218394] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  310.220567]  ? dump_stack_print_info.cold.1+0x20/0x20
[  310.225112] lowmem_reserve[]: 0 0 3503 3503
[  310.228767]  warn_alloc.cold.116+0xb7/0x1bd
[  310.256073] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  310.261281]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  310.265575] lowmem_reserve[]: 0 0 0 0
[  310.269910]  ? lock_downgrade+0x900/0x900
[  310.298784] 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
[  310.303644]  ? trace_hardirqs_off+0xb8/0x310
[  310.307412] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  310.311572]  ? trace_hardirqs_off+0xb8/0x310
[  310.325080] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  310.329512]  __alloc_pages_slowpath+0x26e8/0x2e10
[  310.344753] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  310.349196]  ? warn_alloc+0x120/0x120
[  310.364247] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  310.369102]  ? print_usage_bug+0xc0/0xc0
[  310.377911] 269 total pagecache pages
[  310.381727]  ? warn_alloc+0x120/0x120
[  310.390282] 0 pages in swap cache
[  310.394343]  ? warn_alloc+0x120/0x120
[  310.398115] Swap cache stats: add 0, delete 0, find 0/0
[  310.401916]  ? print_usage_bug+0xc0/0xc0
[  310.405342] Free swap  = 0kB
[  310.409147]  ? print_usage_bug+0xc0/0xc0
[  310.414478] Total swap = 0kB
[  310.418544]  ? __lock_acquire+0x62f/0x4c20
[  310.421525] 1965979 pages RAM
[  310.425595]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.428576] 0 pages HighMem/MovableOnly
[  310.428585] 342853 pages reserved
[  310.432821]  ? should_fail+0x22d/0xd01
[  310.435902] 0 pages cma reserved
[  310.441438]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.445460] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  310.448847]  ? __lock_acquire+0x62f/0x4c20
[  310.452805] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  310.456073]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.461151] syz-fuzzer cpuset=/ mems_allowed=0
[  310.467646]  ? __lock_acquire+0x62f/0x4c20
[  310.496051]  ? should_fail+0x22d/0xd01
[  310.499955]  ? find_held_lock+0x36/0x1c0
[  310.504035]  ? mark_held_locks+0x130/0x130
[  310.508280]  ? mark_held_locks+0x130/0x130
[  310.512515]  ? zap_class+0x640/0x640
[  310.516243]  ? zap_class+0x640/0x640
[  310.519966]  ? print_usage_bug+0xc0/0xc0
[  310.524041]  ? do_raw_spin_unlock+0xa7/0x330
[  310.528452]  ? zap_class+0x640/0x640
[  310.532171]  ? print_usage_bug+0xc0/0xc0
[  310.536238]  ? wq_watchdog_touch+0x9c/0xfe
[  310.540489]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.546036]  ? check_preemption_disabled+0x48/0x280
[  310.551068]  ? __lock_is_held+0xb5/0x140
[  310.555140]  __alloc_pages_nodemask+0xa80/0xde0
[  310.559813]  ? zap_class+0x640/0x640
[  310.563542]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  310.568578]  ? find_held_lock+0x36/0x1c0
[  310.572669]  ? ____cache_alloc_node+0x1c7/0x1e0
[  310.577355]  ? lock_downgrade+0x900/0x900
[  310.581515]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.587067]  cache_grow_begin+0xa5/0x8c0
[  310.591134]  ? do_raw_spin_unlock+0xa7/0x330
[  310.595561]  fallback_alloc+0x204/0x2e0
[  310.599552]  ____cache_alloc_node+0x1c7/0x1e0
[  310.604056]  kmem_cache_alloc_node+0xe3/0x730
[  310.608559]  ? ipv6_get_ifaddr+0x42e/0x620
[  310.612844]  __alloc_skb+0x119/0x770
[  310.616561]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.621871]  ? netdev_alloc_frag+0x1f0/0x1f0
[  310.626286]  ? lock_downgrade+0x900/0x900
[  310.630443]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.635989]  ? refcount_sub_and_test_checked+0x203/0x310
[  310.641449]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  310.646911]  ? addrconf_rs_timer+0x690/0x690
[  310.651344]  ndisc_alloc_skb+0x144/0x340
[  310.655413]  ndisc_send_rs+0x331/0x6e0
[  310.659311]  addrconf_rs_timer+0x314/0x690
[  310.663560]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.667825]  call_timer_fn+0x272/0x920
[  310.671713]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.675958]  ? process_timeout+0x40/0x40
[  310.680031]  ? __run_timers+0x7da/0xc70
[  310.684012]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.688526]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.693034]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.697279]  ? lockdep_hardirqs_on+0x296/0x5b0
[  310.701868]  ? trace_hardirqs_on+0xbd/0x310
[  310.706201]  ? kasan_check_read+0x11/0x20
[  310.710352]  ? __run_timers+0x7da/0xc70
[  310.714332]  ? trace_hardirqs_off_caller+0x310/0x310
[  310.719445]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.723687]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.727936]  __run_timers+0x7e5/0xc70
[  310.731752]  ? timer_fixup_init+0x70/0x70
[  310.735906]  ? lock_acquire+0x1ed/0x520
[  310.739887]  ? zap_class+0x640/0x640
[  310.743604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.749158]  ? kasan_check_read+0x11/0x20
[  310.753540]  ? do_raw_spin_lock+0x14f/0x350
[  310.757872]  ? find_held_lock+0x36/0x1c0
[  310.761949]  ? zap_class+0x640/0x640
[  310.765670]  ? pvclock_read_flags+0x160/0x160
[  310.770214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.775799]  ? check_preemption_disabled+0x48/0x280
[  310.780835]  ? __lock_is_held+0xb5/0x140
[  310.784902]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.790543]  ? check_preemption_disabled+0x48/0x280
[  310.795572]  run_timer_softirq+0x52/0xb0
[  310.799639]  ? rcu_read_lock_sched_held+0x14f/0x180
[  310.804663]  __do_softirq+0x308/0xb7e
[  310.808471]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  310.812974]  ? lock_downgrade+0x900/0x900
[  310.817133]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  310.822249]  ? pvclock_read_flags+0x160/0x160
[  310.826751]  ? lapic_next_event+0x5a/0x90
[  310.830906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.836457]  ? kvm_clock_read+0x18/0x30
[  310.840433]  ? kvm_sched_clock_read+0x9/0x20
[  310.844847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.850394]  ? check_preemption_disabled+0x48/0x280
[  310.855423]  irq_exit+0x17f/0x1c0
[  310.858886]  smp_apic_timer_interrupt+0x1cb/0x760
[  310.863755]  ? smp_call_function_single_interrupt+0x159/0x650
[  310.869666]  ? smp_call_function_single_interrupt+0x650/0x650
[  310.875564]  ? interrupt_entry+0xb5/0xc0
[  310.879633]  ? trace_hardirqs_off_caller+0xbb/0x310
[  310.884651]  ? trace_hardirqs_off_caller+0xbb/0x310
[  310.889672]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.894517]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.899543]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.904580]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.909449]  apic_timer_interrupt+0xf/0x20
[  310.913691]  </IRQ>
[  310.915942] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  310.920875] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  310.939788] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  310.947507] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  310.954786] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  310.962060] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  310.969331] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  310.976709] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  310.984717]  skb_clone+0x1bb/0x500
[  310.988650]  ? skb_split+0x11e0/0x11e0
[  310.992969]  ? check_preemption_disabled+0x48/0x280
[  310.998250]  ? __this_cpu_preempt_check+0x1c/0x20
[  311.003539]  ? __bpf_redirect+0x54b/0xb20
[  311.007815]  bpf_clone_redirect+0xb9/0x490
[  311.012497]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  311.018139]  ? __sched_text_start+0x8/0x8
[  311.022643]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  311.027907]  ? find_held_lock+0x36/0x1c0
[  311.032414]  ? lock_acquire+0x1ed/0x520
[  311.036677]  ? bpf_test_run+0x3cb/0x780
[  311.040663]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.046210]  ? check_preemption_disabled+0x48/0x280
[  311.051263]  ? kasan_check_read+0x11/0x20
[  311.055424]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.060703]  ? rcu_softirq_qs+0x20/0x20
[  311.064684]  ? preempt_schedule+0x4d/0x60
[  311.068838]  ? ___preempt_schedule+0x16/0x18
[  311.073259]  ? bpf_test_run+0x25d/0x780
[  311.077253]  ? netlink_diag_dump+0x2a0/0x2a0
[  311.081669]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  311.086430]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  311.091199]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  311.096049]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  311.101593]  ? fput+0x130/0x1a0
[  311.104872]  ? __bpf_prog_get+0x9b/0x290
[  311.108948]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  311.113792]  ? bpf_prog_test_run+0x130/0x1a0
[  311.118207]  ? __x64_sys_bpf+0x3d8/0x520
[  311.122267]  ? bpf_prog_get+0x20/0x20
[  311.126092]  ? do_syscall_64+0x1b9/0x820
[  311.130157]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  311.135527]  ? syscall_return_slowpath+0x5e0/0x5e0
[  311.140463]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  311.145315]  ? trace_hardirqs_on_caller+0x310/0x310
[  311.150335]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  311.155358]  ? prepare_exit_to_usermode+0x291/0x3b0
[  311.160384]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  311.165237]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  311.170625] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  311.170726] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  311.177577] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  311.177583] Call Trace:
[  311.177590]  <IRQ>
[  311.177611]  dump_stack+0x244/0x39d
[  311.177628]  ? dump_stack_print_info.cold.1+0x20/0x20
[  311.177657]  warn_alloc.cold.116+0xb7/0x1bd
[  311.184273] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  311.193494]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  311.196053] syz-executor4 cpuset=syz4 mems_allowed=0
[  311.198205]  ? lock_downgrade+0x900/0x900
[  311.235853]  ? trace_hardirqs_off+0xb8/0x310
[  311.240277]  ? trace_hardirqs_off+0xb8/0x310
[  311.244695]  __alloc_pages_slowpath+0x26e8/0x2e10
[  311.249578]  ? warn_alloc+0x120/0x120
[  311.253393]  ? print_usage_bug+0xc0/0xc0
[  311.257458]  ? warn_alloc+0x120/0x120
[  311.261265]  ? warn_alloc+0x120/0x120
[  311.265075]  ? print_usage_bug+0xc0/0xc0
[  311.269138]  ? kvm_clock_read+0x18/0x30
[  311.273117]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  311.278140]  ? print_usage_bug+0xc0/0xc0
[  311.282212]  ? __lock_acquire+0x62f/0x4c20
[  311.286461]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.292004]  ? should_fail+0x22d/0xd01
[  311.295897]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.301194]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  311.306302]  ? __lock_acquire+0x62f/0x4c20
[  311.310548]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  311.315676]  ? __lock_acquire+0x62f/0x4c20
[  311.319910]  ? should_fail+0x22d/0xd01
[  311.323811]  ? rcu_irq_exit+0x1a2/0x390
[  311.327808]  ? mark_held_locks+0x130/0x130
[  311.332055]  ? mark_held_locks+0x130/0x130
[  311.336297]  ? mark_held_locks+0xc7/0x130
[  311.340465]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  311.345487]  ? zap_class+0x640/0x640
[  311.349202]  ? print_usage_bug+0xc0/0xc0
[  311.353271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.358813]  ? check_preemption_disabled+0x48/0x280
[  311.363848]  ? __lock_is_held+0xb5/0x140
[  311.367937]  __alloc_pages_nodemask+0xa80/0xde0
[  311.372614]  ? zap_class+0x640/0x640
[  311.376350]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  311.381385]  ? find_held_lock+0x36/0x1c0
[  311.385466]  ? ____cache_alloc_node+0x1c7/0x1e0
[  311.390142]  ? lock_downgrade+0x900/0x900
[  311.394302]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.399854]  cache_grow_begin+0xa5/0x8c0
[  311.403918]  ? do_raw_spin_unlock+0xa7/0x330
[  311.408349]  fallback_alloc+0x204/0x2e0
[  311.412344]  ____cache_alloc_node+0x1c7/0x1e0
[  311.416847]  kmem_cache_alloc_node+0xe3/0x730
[  311.421346]  ? ipv6_get_ifaddr+0x42e/0x620
[  311.425597]  __alloc_skb+0x119/0x770
[  311.429311]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.434596]  ? netdev_alloc_frag+0x1f0/0x1f0
[  311.439010]  ? lock_downgrade+0x900/0x900
[  311.443194]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.448736]  ? refcount_sub_and_test_checked+0x203/0x310
[  311.454193]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  311.459654]  ? addrconf_rs_timer+0x690/0x690
[  311.464078]  ndisc_alloc_skb+0x144/0x340
[  311.468149]  ndisc_send_rs+0x331/0x6e0
[  311.472052]  addrconf_rs_timer+0x314/0x690
[  311.476296]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.480544]  call_timer_fn+0x272/0x920
[  311.484435]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.488690]  ? process_timeout+0x40/0x40
[  311.492779]  ? mark_held_locks+0xc7/0x130
[  311.496946]  ? _raw_spin_unlock_irq+0x27/0x80
[  311.501441]  ? _raw_spin_unlock_irq+0x27/0x80
[  311.505949]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.510190]  ? lockdep_hardirqs_on+0x296/0x5b0
[  311.514777]  ? trace_hardirqs_on+0xbd/0x310
[  311.519101]  ? kasan_check_read+0x11/0x20
[  311.523251]  ? __run_timers+0x7da/0xc70
[  311.527228]  ? trace_hardirqs_off_caller+0x310/0x310
[  311.532341]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.536586]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.540834]  __run_timers+0x7e5/0xc70
[  311.544646]  ? timer_fixup_init+0x70/0x70
[  311.548812]  ? kasan_check_read+0x11/0x20
[  311.552971]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.558251]  ? rcu_softirq_qs+0x20/0x20
[  311.562237]  ? mark_held_locks+0xc7/0x130
[  311.566394]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  311.571158]  ? retint_kernel+0x2d/0x2d
[  311.575055]  ? trace_hardirqs_on_caller+0xc0/0x310
[  311.579998]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  311.584764]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  311.590219]  ? zap_class+0x640/0x640
[  311.593947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.599491]  ? check_preemption_disabled+0x48/0x280
[  311.604521]  ? __lock_is_held+0xb5/0x140
[  311.608584]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.614131]  ? check_preemption_disabled+0x48/0x280
[  311.619153]  run_timer_softirq+0x52/0xb0
[  311.623237]  ? rcu_read_lock_sched_held+0x14f/0x180
[  311.628260]  __do_softirq+0x308/0xb7e
[  311.632071]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  311.636567]  ? lock_downgrade+0x900/0x900
[  311.640735]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  311.645850]  ? pvclock_read_flags+0x160/0x160
[  311.650354]  ? lapic_next_event+0x5a/0x90
[  311.654513]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.660063]  ? kvm_clock_read+0x18/0x30
[  311.664043]  ? kvm_sched_clock_read+0x9/0x20
[  311.668458]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.673999]  ? check_preemption_disabled+0x48/0x280
[  311.679039]  irq_exit+0x17f/0x1c0
[  311.682510]  smp_apic_timer_interrupt+0x1cb/0x760
[  311.687370]  ? smp_call_function_single_interrupt+0x650/0x650
[  311.693255]  ? interrupt_entry+0xb5/0xc0
[  311.697325]  ? trace_hardirqs_off_caller+0xbb/0x310
[  311.702341]  ? trace_hardirqs_off_caller+0xbb/0x310
[  311.707359]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  311.712206]  ? trace_hardirqs_on_caller+0x310/0x310
[  311.717222]  ? trace_hardirqs_on_caller+0x310/0x310
[  311.722239]  ? task_prio+0x50/0x50
[  311.725786]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.731330]  ? check_preemption_disabled+0x48/0x280
[  311.736358]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  311.741214]  apic_timer_interrupt+0xf/0x20
[  311.745446]  </IRQ>
[  311.747685] RIP: 0010:dump_stack+0x358/0x39d
[  311.752096] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  311.771011] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  311.778734] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  311.786006] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  311.793283] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  311.800554] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  311.807822] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  311.815126]  ? dump_stack+0x34f/0x39d
[  311.818950]  ? dump_stack_print_info.cold.1+0x20/0x20
[  311.824148]  ? mark_held_locks+0x130/0x130
[  311.828384]  ? mark_held_locks+0x130/0x130
[  311.832627]  dump_header+0x27b/0xf72
[  311.836359]  ? pagefault_out_of_memory+0x197/0x197
[  311.841302]  ? __lock_acquire+0x62f/0x4c20
[  311.845546]  ? percpu_ref_get_many+0x240/0x240
[  311.850139]  ? print_usage_bug+0xc0/0xc0
[  311.854209]  ? zap_class+0x640/0x640
[  311.857938]  ? print_usage_bug+0xc0/0xc0
[  311.862003]  ? print_usage_bug+0xc0/0xc0
[  311.866085]  ? zap_class+0x640/0x640
[  311.869837]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.875379]  ? find_held_lock+0x36/0x1c0
[  311.879455]  ? mark_held_locks+0xc7/0x130
[  311.883731]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  311.888837]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  311.893949]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  311.898537]  ? trace_hardirqs_on+0xbd/0x310
[  311.902860]  ? kasan_check_read+0x11/0x20
[  311.907008]  ? ___ratelimit+0x3b4/0x672
[  311.910992]  ? trace_hardirqs_off_caller+0x310/0x310
[  311.916098]  ? trace_hardirqs_on+0x310/0x310
[  311.920507]  ? lock_downgrade+0x900/0x900
[  311.924675]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  311.929794]  ? ___ratelimit+0x3b9/0x672
[  311.933778]  ? idr_get_free+0xf70/0xf70
[  311.937755]  ? find_held_lock+0x36/0x1c0
[  311.941828]  oom_kill_process.cold.27+0x10/0x903
[  311.946587]  ? zap_class+0x640/0x640
[  311.950307]  ? check_preemption_disabled+0x48/0x280
[  311.955326]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  311.960258]  ? kasan_check_read+0x11/0x20
[  311.964418]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.969702]  ? oom_evaluate_task+0x540/0x540
[  311.974121]  ? find_held_lock+0x36/0x1c0
[  311.978196]  ? out_of_memory+0x974/0x1430
[  311.982349]  ? lock_downgrade+0x900/0x900
[  311.986499]  ? check_preemption_disabled+0x48/0x280
[  311.991522]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  311.996458]  ? kasan_check_read+0x11/0x20
[  312.000614]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.005899]  ? rcu_softirq_qs+0x20/0x20
[  312.009889]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.015426]  ? oom_evaluate_task+0x302/0x540
[  312.019841]  out_of_memory+0xa84/0x1430
[  312.023828]  ? oom_killer_disable+0x3a0/0x3a0
[  312.028335]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  312.033271]  ? __ww_mutex_check_waiters+0x160/0x160
[  312.038299]  __alloc_pages_slowpath+0x2354/0x2e10
[  312.043176]  ? warn_alloc+0x120/0x120
[  312.046980]  ? mark_held_locks+0x130/0x130
[  312.051226]  ? find_get_entry+0xaae/0x1120
[  312.055471]  ? filemap_map_pages+0x1a20/0x1a20
[  312.060062]  ? zap_class+0x640/0x640
[  312.063787]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.069333]  ? check_preemption_disabled+0x48/0x280
[  312.074353]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.079897]  ? should_fail+0x22d/0xd01
[  312.083798]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  312.088907]  ? zap_class+0x640/0x640
[  312.092922]  ? __lock_is_held+0xb5/0x140
[  312.097003]  ? mark_held_locks+0x130/0x130
[  312.101244]  ? lock_release+0xa00/0xa00
[  312.105225]  ? perf_trace_sched_process_exec+0x860/0x860
[  312.110679]  ? xa_load+0x2ba/0x460
[  312.114221]  ? lock_downgrade+0x900/0x900
[  312.118381]  ? __might_sleep+0x95/0x190
[  312.122369]  __alloc_pages_nodemask+0xa80/0xde0
[  312.127077]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  312.132105]  ? __page_cache_alloc+0x191/0x5c0
[  312.136602]  ? xa_load+0x2e1/0x460
[  312.140145]  ? xa_clear_mark+0x40/0x40
[  312.144049]  ? zap_class+0x640/0x640
[  312.147771]  ? zap_class+0x640/0x640
[  312.151503]  ? zap_class+0x640/0x640
[  312.155218]  ? __do_page_cache_readahead+0x663/0x810
[  312.160341]  ? find_held_lock+0x36/0x1c0
[  312.164414]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  312.169967]  alloc_pages_current+0x173/0x350
[  312.174388]  __page_cache_alloc+0x38c/0x5c0
[  312.178709]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  312.183641]  ? kasan_check_read+0x11/0x20
[  312.187791]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.193076]  ? generic_perform_write+0x6a0/0x6a0
[  312.197847]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.203389]  ? check_preemption_disabled+0x48/0x280
[  312.208421]  filemap_fault+0x1595/0x25f0
[  312.212499]  ? __lock_page_or_retry+0xa00/0xa00
[  312.217178]  ? mark_held_locks+0x130/0x130
[  312.221424]  ? filemap_map_pages+0xd6b/0x1a20
[  312.225923]  ? lock_downgrade+0x900/0x900
[  312.230086]  ? check_preemption_disabled+0x48/0x280
[  312.235105]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  312.240055]  ? kasan_check_read+0x11/0x20
[  312.244205]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.249481]  ? rcu_softirq_qs+0x20/0x20
[  312.253472]  ? filemap_map_pages+0xd92/0x1a20
[  312.257985]  ? find_get_entries_tag+0x1400/0x1400
[  312.262828]  ? find_held_lock+0x36/0x1c0
[  312.266914]  ? lock_acquire+0x1ed/0x520
[  312.270900]  ? ext4_filemap_fault+0x7a/0xad
[  312.275238]  ? lock_release+0xa00/0xa00
[  312.279215]  ? perf_trace_sched_process_exec+0x860/0x860
[  312.284668]  ? print_usage_bug+0xc0/0xc0
[  312.288736]  ? print_usage_bug+0xc0/0xc0
[  312.292812]  ? down_read+0x8d/0x120
[  312.296438]  ? ext4_filemap_fault+0x7a/0xad
[  312.300767]  ? __down_interruptible+0x700/0x700
[  312.305447]  ext4_filemap_fault+0x82/0xad
[  312.309603]  __do_fault+0x100/0x6b0
[  312.313230]  ? find_held_lock+0x36/0x1c0
[  312.317294]  ? pmd_devmap_trans_unstable+0x220/0x220
[  312.322413]  ? mark_held_locks+0x130/0x130
[  312.326656]  ? mark_held_locks+0x130/0x130
[  312.330906]  ? kasan_check_read+0x11/0x20
[  312.335065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.340610]  __handle_mm_fault+0x3ea0/0x5be0
[  312.345023]  ? perf_trace_lock+0x7a0/0x7a0
[  312.349274]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  312.354128]  ? __switch_to_asm+0x34/0x70
[  312.358193]  ? __switch_to_asm+0x34/0x70
[  312.362293]  ? zap_class+0x640/0x640
[  312.366007]  ? zap_class+0x640/0x640
[  312.369725]  ? __x64_sys_futex+0x53e/0x6a0
[  312.373974]  ? find_held_lock+0x36/0x1c0
[  312.378060]  ? handle_mm_fault+0x42a/0xc70
[  312.382314]  ? lock_downgrade+0x900/0x900
[  312.386469]  ? check_preemption_disabled+0x48/0x280
[  312.391489]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  312.396429]  ? kasan_check_read+0x11/0x20
[  312.400580]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.405872]  ? rcu_softirq_qs+0x20/0x20
[  312.409847]  ? trace_hardirqs_off_caller+0x310/0x310
[  312.414973]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.420516]  ? check_preemption_disabled+0x48/0x280
[  312.425549]  handle_mm_fault+0x54f/0xc70
[  312.429620]  ? __handle_mm_fault+0x5be0/0x5be0
[  312.434260]  ? find_vma+0x34/0x190
[  312.437819]  __do_page_fault+0x5e8/0xe60
[  312.441886]  ? trace_hardirqs_off+0xb8/0x310
[  312.446310]  do_page_fault+0xf2/0x7e0
[  312.450118]  ? vmalloc_sync_all+0x30/0x30
[  312.454268]  ? error_entry+0x70/0xd0
[  312.457989]  ? trace_hardirqs_off_caller+0xbb/0x310
[  312.463004]  ? trace_hardirqs_on_caller+0xc0/0x310
[  312.467948]  ? syscall_return_slowpath+0x5e0/0x5e0
[  312.472877]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  312.477723]  ? trace_hardirqs_on_caller+0x310/0x310
[  312.482740]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  312.488201]  ? prepare_exit_to_usermode+0x291/0x3b0
[  312.493220]  ? page_fault+0x8/0x30
[  312.496763]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  312.501609]  ? page_fault+0x8/0x30
[  312.505151]  page_fault+0x1e/0x30
[  312.508608] RIP: 0033:0x44b69a
[  312.511814] Code: Bad RIP value.
[  312.515179] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  312.520538] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  312.527804] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  312.535075] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  312.542372] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  312.549643] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  312.556958] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  312.556965] warn_alloc_show_mem: 1 callbacks suppressed
[  312.556972] Mem-Info:
[  312.564168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  312.564177] Call Trace:
[  312.569552] active_anon:47227 inactive_anon:190 isolated_anon:0
[  312.569552]  active_file:11 inactive_file:14 isolated_file:0
[  312.569552]  unevictable:0 dirty:0 writeback:0 unstable:0
[  312.569552]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  312.569552]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  312.569552]  free:13756 free_pcp:235 free_cma:0
[  312.571926]  <IRQ>
[  312.581301] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  312.583892]  dump_stack+0x244/0x39d
[  312.616760] 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
[  312.618936]  ? dump_stack_print_info.cold.1+0x20/0x20
[  312.646761] lowmem_reserve[]: 0 2818 6321 6321
[  312.650419]  warn_alloc.cold.116+0xb7/0x1bd
[  312.676513] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  312.681724]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  312.686267] lowmem_reserve[]: 0 0 3503 3503
[  312.690606]  ? lock_downgrade+0x900/0x900
[  312.717921] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  312.722789]  ? trace_hardirqs_off+0xb8/0x310
[  312.727072] lowmem_reserve[]: 0 0 0 0
[  312.731236]  ? trace_hardirqs_off+0xb8/0x310
[  312.760539] 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
[  312.764984]  __alloc_pages_slowpath+0x26e8/0x2e10
[  312.768744] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  312.773179]  ? warn_alloc+0x120/0x120
[  312.786662] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  312.791552]  ? print_usage_bug+0xc0/0xc0
[  312.806795] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  312.810600]  ? warn_alloc+0x120/0x120
[  312.825674] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  312.825685] 269 total pagecache pages
[  312.829760]  ? warn_alloc+0x120/0x120
[  312.838573] 0 pages in swap cache
[  312.842374]  ? print_usage_bug+0xc0/0xc0
[  312.850919] Swap cache stats: add 0, delete 0, find 0/0
[  312.850936] Free swap  = 0kB
[  312.854741]  ? kvm_clock_read+0x18/0x30
[  312.858508] Total swap = 0kB
[  312.861980]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  312.866023] 1965979 pages RAM
[  312.871411]  ? print_usage_bug+0xc0/0xc0
[  312.874403] 0 pages HighMem/MovableOnly
[  312.878376]  ? __lock_acquire+0x62f/0x4c20
[  312.881373] 342853 pages reserved
[  312.886389]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.889461] 0 pages cma reserved
[  312.893522]  ? should_fail+0x22d/0xd01
[  312.897578] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  312.901700]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.901733]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  312.905275] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  312.910716]  ? __lock_acquire+0x62f/0x4c20
[  312.914058] syz-fuzzer cpuset=/ mems_allowed=0
[  312.917954]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  312.958914]  ? __lock_acquire+0x62f/0x4c20
[  312.963167]  ? should_fail+0x22d/0xd01
[  312.967057]  ? rcu_irq_exit+0x1a2/0x390
[  312.971062]  ? mark_held_locks+0x130/0x130
[  312.975307]  ? mark_held_locks+0x130/0x130
[  312.979560]  ? mark_held_locks+0xc7/0x130
[  312.983721]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  312.988746]  ? zap_class+0x640/0x640
[  312.992462]  ? print_usage_bug+0xc0/0xc0
[  312.996537]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.002083]  ? check_preemption_disabled+0x48/0x280
[  313.007114]  ? __lock_is_held+0xb5/0x140
[  313.011192]  __alloc_pages_nodemask+0xa80/0xde0
[  313.015865]  ? zap_class+0x640/0x640
[  313.019592]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  313.024624]  ? find_held_lock+0x36/0x1c0
[  313.028704]  ? ____cache_alloc_node+0x1c7/0x1e0
[  313.033391]  ? lock_downgrade+0x900/0x900
[  313.037567]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.043121]  cache_grow_begin+0xa5/0x8c0
[  313.047188]  ? do_raw_spin_unlock+0xa7/0x330
[  313.051636]  fallback_alloc+0x204/0x2e0
[  313.055626]  ____cache_alloc_node+0x1c7/0x1e0
[  313.060134]  kmem_cache_alloc_node+0xe3/0x730
[  313.064637]  ? ipv6_get_ifaddr+0x42e/0x620
[  313.068892]  __alloc_skb+0x119/0x770
[  313.072617]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.077911]  ? netdev_alloc_frag+0x1f0/0x1f0
[  313.082339]  ? lock_downgrade+0x900/0x900
[  313.086499]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.092046]  ? refcount_sub_and_test_checked+0x203/0x310
[  313.097511]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  313.102976]  ? addrconf_rs_timer+0x690/0x690
[  313.107404]  ndisc_alloc_skb+0x144/0x340
[  313.111477]  ndisc_send_rs+0x331/0x6e0
[  313.115377]  addrconf_rs_timer+0x314/0x690
[  313.119622]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.123875]  call_timer_fn+0x272/0x920
[  313.127768]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.132009]  ? process_timeout+0x40/0x40
[  313.136080]  ? __run_timers+0x7da/0xc70
[  313.140072]  ? _raw_spin_unlock_irq+0x27/0x80
[  313.144580]  ? _raw_spin_unlock_irq+0x27/0x80
[  313.149078]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.153322]  ? lockdep_hardirqs_on+0x296/0x5b0
[  313.157909]  ? trace_hardirqs_on+0xbd/0x310
[  313.162269]  ? kasan_check_read+0x11/0x20
[  313.166424]  ? __run_timers+0x7da/0xc70
[  313.170412]  ? trace_hardirqs_off_caller+0x310/0x310
[  313.175538]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.179792]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.184031]  __run_timers+0x7e5/0xc70
[  313.187849]  ? timer_fixup_init+0x70/0x70
[  313.192011]  ? lock_acquire+0x1ed/0x520
[  313.195995]  ? zap_class+0x640/0x640
[  313.199718]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.205275]  ? kasan_check_read+0x11/0x20
[  313.209427]  ? do_raw_spin_lock+0x14f/0x350
[  313.213764]  ? find_held_lock+0x36/0x1c0
[  313.217848]  ? zap_class+0x640/0x640
[  313.221685]  ? pvclock_read_flags+0x160/0x160
[  313.226189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.231737]  ? check_preemption_disabled+0x48/0x280
[  313.236775]  ? __lock_is_held+0xb5/0x140
[  313.240859]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.246410]  ? check_preemption_disabled+0x48/0x280
[  313.251458]  run_timer_softirq+0x52/0xb0
[  313.255560]  ? rcu_read_lock_sched_held+0x14f/0x180
[  313.260607]  __do_softirq+0x308/0xb7e
[  313.264441]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  313.268960]  ? lock_downgrade+0x900/0x900
[  313.273128]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  313.278251]  ? pvclock_read_flags+0x160/0x160
[  313.282757]  ? lapic_next_event+0x5a/0x90
[  313.286926]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.292490]  ? kvm_clock_read+0x18/0x30
[  313.296474]  ? kvm_sched_clock_read+0x9/0x20
[  313.300896]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.306469]  ? check_preemption_disabled+0x48/0x280
[  313.311522]  irq_exit+0x17f/0x1c0
[  313.315003]  smp_apic_timer_interrupt+0x1cb/0x760
[  313.319854]  ? smp_call_function_single_interrupt+0x159/0x650
[  313.325857]  ? smp_call_function_single_interrupt+0x650/0x650
[  313.331750]  ? interrupt_entry+0xb5/0xc0
[  313.335825]  ? trace_hardirqs_off_caller+0xbb/0x310
[  313.340848]  ? trace_hardirqs_off_caller+0xbb/0x310
[  313.345880]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.350731]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.355754]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.360806]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.365674]  apic_timer_interrupt+0xf/0x20
[  313.369910]  </IRQ>
[  313.372167] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  313.377105] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  313.396024] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  313.403762] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  313.411042] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  313.418321] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  313.425601] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  313.432876] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  313.440204]  skb_clone+0x1bb/0x500
[  313.443760]  ? skb_split+0x11e0/0x11e0
[  313.447676]  ? check_preemption_disabled+0x48/0x280
[  313.452713]  ? __this_cpu_preempt_check+0x1c/0x20
[  313.457569]  ? __bpf_redirect+0x54b/0xb20
[  313.461732]  bpf_clone_redirect+0xb9/0x490
[  313.465989]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  313.471018]  ? __sched_text_start+0x8/0x8
[  313.475177]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  313.479962]  ? find_held_lock+0x36/0x1c0
[  313.484044]  ? lock_acquire+0x1ed/0x520
[  313.488032]  ? bpf_test_run+0x3cb/0x780
[  313.492017]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.497568]  ? check_preemption_disabled+0x48/0x280
[  313.502615]  ? kasan_check_read+0x11/0x20
[  313.506776]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.512063]  ? rcu_softirq_qs+0x20/0x20
[  313.516052]  ? preempt_schedule+0x4d/0x60
[  313.520210]  ? ___preempt_schedule+0x16/0x18
[  313.524645]  ? bpf_test_run+0x25d/0x780
[  313.528640]  ? netlink_diag_dump+0x2a0/0x2a0
[  313.533060]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  313.537834]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  313.542610]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  313.547475]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  313.553058]  ? fput+0x130/0x1a0
[  313.556348]  ? __bpf_prog_get+0x9b/0x290
[  313.560418]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  313.565263]  ? bpf_prog_test_run+0x130/0x1a0
[  313.569681]  ? __x64_sys_bpf+0x3d8/0x520
[  313.573747]  ? bpf_prog_get+0x20/0x20
[  313.577577]  ? do_syscall_64+0x1b9/0x820
[  313.581644]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  313.587026]  ? syscall_return_slowpath+0x5e0/0x5e0
[  313.591966]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.596823]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.601868]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  313.606905]  ? prepare_exit_to_usermode+0x291/0x3b0
[  313.611969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.616845]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  313.622237] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  313.622336] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  313.629184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  313.629194] Call Trace:
[  313.635829] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  313.645040]  <IRQ>
[  313.647611] syz-executor4 cpuset=syz4 mems_allowed=0
[  313.658116]  dump_stack+0x244/0x39d
[  313.669002]  ? dump_stack_print_info.cold.1+0x20/0x20
[  313.674233]  warn_alloc.cold.116+0xb7/0x1bd
[  313.678564]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  313.683422]  ? lock_downgrade+0x900/0x900
[  313.687583]  ? trace_hardirqs_off+0xb8/0x310
[  313.692005]  ? trace_hardirqs_off+0xb8/0x310
[  313.696434]  __alloc_pages_slowpath+0x26e8/0x2e10
[  313.701312]  ? warn_alloc+0x120/0x120
[  313.705126]  ? print_usage_bug+0xc0/0xc0
[  313.709194]  ? warn_alloc+0x120/0x120
[  313.713002]  ? warn_alloc+0x120/0x120
[  313.716810]  ? print_usage_bug+0xc0/0xc0
[  313.720887]  ? kvm_clock_read+0x18/0x30
[  313.724866]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  313.729891]  ? print_usage_bug+0xc0/0xc0
[  313.733967]  ? __lock_acquire+0x62f/0x4c20
[  313.738213]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  313.743762]  ? should_fail+0x22d/0xd01
[  313.747667]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.752968]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  313.758080]  ? __lock_acquire+0x62f/0x4c20
[  313.762325]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  313.767434]  ? __lock_acquire+0x62f/0x4c20
[  313.771672]  ? should_fail+0x22d/0xd01
[  313.775566]  ? rcu_irq_exit+0x1a2/0x390
[  313.779585]  ? mark_held_locks+0x130/0x130
[  313.783845]  ? mark_held_locks+0x130/0x130
[  313.788088]  ? mark_held_locks+0xc7/0x130
[  313.792244]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  313.797267]  ? zap_class+0x640/0x640
[  313.800989]  ? print_usage_bug+0xc0/0xc0
[  313.805065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.810713]  ? check_preemption_disabled+0x48/0x280
[  313.815759]  ? __lock_is_held+0xb5/0x140
[  313.819835]  __alloc_pages_nodemask+0xa80/0xde0
[  313.824524]  ? zap_class+0x640/0x640
[  313.828248]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  313.833280]  ? find_held_lock+0x36/0x1c0
[  313.837357]  ? ____cache_alloc_node+0x1c7/0x1e0
[  313.842040]  ? lock_downgrade+0x900/0x900
[  313.846208]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.851762]  cache_grow_begin+0xa5/0x8c0
[  313.855832]  ? do_raw_spin_unlock+0xa7/0x330
[  313.860263]  fallback_alloc+0x204/0x2e0
[  313.864247]  ____cache_alloc_node+0x1c7/0x1e0
[  313.868759]  kmem_cache_alloc_node+0xe3/0x730
[  313.873273]  ? ipv6_get_ifaddr+0x42e/0x620
[  313.877532]  __alloc_skb+0x119/0x770
[  313.881447]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.886735]  ? netdev_alloc_frag+0x1f0/0x1f0
[  313.891151]  ? lock_downgrade+0x900/0x900
[  313.895313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.900860]  ? refcount_sub_and_test_checked+0x203/0x310
[  313.906329]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  313.911791]  ? addrconf_rs_timer+0x690/0x690
[  313.916221]  ndisc_alloc_skb+0x144/0x340
[  313.920290]  ndisc_send_rs+0x331/0x6e0
[  313.924195]  addrconf_rs_timer+0x314/0x690
[  313.928439]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.932687]  call_timer_fn+0x272/0x920
[  313.936580]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.940818]  ? process_timeout+0x40/0x40
[  313.944893]  ? mark_held_locks+0xc7/0x130
[  313.949050]  ? _raw_spin_unlock_irq+0x27/0x80
[  313.953548]  ? _raw_spin_unlock_irq+0x27/0x80
[  313.958061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.962317]  ? lockdep_hardirqs_on+0x296/0x5b0
[  313.966911]  ? trace_hardirqs_on+0xbd/0x310
[  313.971245]  ? kasan_check_read+0x11/0x20
[  313.975394]  ? __run_timers+0x7da/0xc70
[  313.979381]  ? trace_hardirqs_off_caller+0x310/0x310
[  313.984523]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.988768]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  313.993008]  __run_timers+0x7e5/0xc70
[  313.996826]  ? timer_fixup_init+0x70/0x70
[  314.000986]  ? kasan_check_read+0x11/0x20
[  314.005154]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.010443]  ? rcu_softirq_qs+0x20/0x20
[  314.014431]  ? mark_held_locks+0xc7/0x130
[  314.018587]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  314.023357]  ? retint_kernel+0x2d/0x2d
[  314.027253]  ? trace_hardirqs_on_caller+0xc0/0x310
[  314.032190]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  314.036960]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  314.042422]  ? zap_class+0x640/0x640
[  314.046152]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.051697]  ? check_preemption_disabled+0x48/0x280
[  314.056732]  ? __lock_is_held+0xb5/0x140
[  314.060809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.066440]  ? check_preemption_disabled+0x48/0x280
[  314.071471]  run_timer_softirq+0x52/0xb0
[  314.075540]  ? rcu_read_lock_sched_held+0x14f/0x180
[  314.080564]  __do_softirq+0x308/0xb7e
[  314.084375]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  314.088878]  ? lock_downgrade+0x900/0x900
[  314.093045]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  314.098168]  ? pvclock_read_flags+0x160/0x160
[  314.102676]  ? lapic_next_event+0x5a/0x90
[  314.106833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.112383]  ? kvm_clock_read+0x18/0x30
[  314.116358]  ? kvm_sched_clock_read+0x9/0x20
[  314.120775]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.126318]  ? check_preemption_disabled+0x48/0x280
[  314.131352]  irq_exit+0x17f/0x1c0
[  314.134812]  smp_apic_timer_interrupt+0x1cb/0x760
[  314.139664]  ? smp_call_function_single_interrupt+0x650/0x650
[  314.145553]  ? interrupt_entry+0xb5/0xc0
[  314.149622]  ? trace_hardirqs_off_caller+0xbb/0x310
[  314.154644]  ? trace_hardirqs_off_caller+0xbb/0x310
[  314.159671]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  314.164517]  ? trace_hardirqs_on_caller+0x310/0x310
[  314.169545]  ? trace_hardirqs_on_caller+0x310/0x310
[  314.174590]  ? task_prio+0x50/0x50
[  314.178141]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.183686]  ? check_preemption_disabled+0x48/0x280
[  314.188722]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  314.193580]  apic_timer_interrupt+0xf/0x20
[  314.197815]  </IRQ>
[  314.200060] RIP: 0010:dump_stack+0x358/0x39d
[  314.204477] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  314.223397] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  314.231135] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  314.238407] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  314.245679] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  314.252968] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  314.260244] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  314.267546]  ? dump_stack+0x34f/0x39d
[  314.271365]  ? dump_stack_print_info.cold.1+0x20/0x20
[  314.276578]  ? mark_held_locks+0x130/0x130
[  314.280819]  ? mark_held_locks+0x130/0x130
[  314.285079]  dump_header+0x27b/0xf72
[  314.288840]  ? pagefault_out_of_memory+0x197/0x197
[  314.293803]  ? __lock_acquire+0x62f/0x4c20
[  314.298052]  ? percpu_ref_get_many+0x240/0x240
[  314.302640]  ? print_usage_bug+0xc0/0xc0
[  314.306710]  ? zap_class+0x640/0x640
[  314.310430]  ? print_usage_bug+0xc0/0xc0
[  314.314493]  ? print_usage_bug+0xc0/0xc0
[  314.318557]  ? zap_class+0x640/0x640
[  314.322296]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.327859]  ? find_held_lock+0x36/0x1c0
[  314.331945]  ? mark_held_locks+0xc7/0x130
[  314.336101]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  314.341210]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  314.346327]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  314.350941]  ? trace_hardirqs_on+0xbd/0x310
[  314.355286]  ? kasan_check_read+0x11/0x20
[  314.359461]  ? ___ratelimit+0x3b4/0x672
[  314.363450]  ? trace_hardirqs_off_caller+0x310/0x310
[  314.368563]  ? trace_hardirqs_on+0x310/0x310
[  314.372985]  ? lock_downgrade+0x900/0x900
[  314.377145]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  314.382252]  ? ___ratelimit+0x3b9/0x672
[  314.386233]  ? idr_get_free+0xf70/0xf70
[  314.390216]  ? find_held_lock+0x36/0x1c0
[  314.394301]  oom_kill_process.cold.27+0x10/0x903
[  314.399074]  ? zap_class+0x640/0x640
[  314.402792]  ? check_preemption_disabled+0x48/0x280
[  314.407816]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.412754]  ? kasan_check_read+0x11/0x20
[  314.416906]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.422194]  ? oom_evaluate_task+0x540/0x540
[  314.426611]  ? find_held_lock+0x36/0x1c0
[  314.430686]  ? out_of_memory+0x974/0x1430
[  314.434840]  ? lock_downgrade+0x900/0x900
[  314.438993]  ? check_preemption_disabled+0x48/0x280
[  314.444016]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.448962]  ? kasan_check_read+0x11/0x20
[  314.453117]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.458397]  ? rcu_softirq_qs+0x20/0x20
[  314.462381]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.467921]  ? oom_evaluate_task+0x302/0x540
[  314.472349]  out_of_memory+0xa84/0x1430
[  314.476337]  ? oom_killer_disable+0x3a0/0x3a0
[  314.480838]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  314.485775]  ? __ww_mutex_check_waiters+0x160/0x160
[  314.490806]  __alloc_pages_slowpath+0x2354/0x2e10
[  314.495679]  ? warn_alloc+0x120/0x120
[  314.499482]  ? mark_held_locks+0x130/0x130
[  314.503739]  ? find_get_entry+0xaae/0x1120
[  314.507985]  ? filemap_map_pages+0x1a20/0x1a20
[  314.512578]  ? zap_class+0x640/0x640
[  314.516319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.521865]  ? check_preemption_disabled+0x48/0x280
[  314.526884]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.532527]  ? should_fail+0x22d/0xd01
[  314.536420]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  314.541537]  ? zap_class+0x640/0x640
[  314.545285]  ? __lock_is_held+0xb5/0x140
[  314.549356]  ? mark_held_locks+0x130/0x130
[  314.553613]  ? lock_release+0xa00/0xa00
[  314.557603]  ? perf_trace_sched_process_exec+0x860/0x860
[  314.563064]  ? xa_load+0x2ba/0x460
[  314.566613]  ? lock_downgrade+0x900/0x900
[  314.570775]  ? __might_sleep+0x95/0x190
[  314.574758]  __alloc_pages_nodemask+0xa80/0xde0
[  314.579448]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  314.584468]  ? __page_cache_alloc+0x191/0x5c0
[  314.588969]  ? xa_load+0x2e1/0x460
[  314.592513]  ? xa_clear_mark+0x40/0x40
[  314.596406]  ? zap_class+0x640/0x640
[  314.600128]  ? zap_class+0x640/0x640
[  314.603850]  ? zap_class+0x640/0x640
[  314.607573]  ? __do_page_cache_readahead+0x663/0x810
[  314.612686]  ? find_held_lock+0x36/0x1c0
[  314.616759]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  314.622309]  alloc_pages_current+0x173/0x350
[  314.626732]  __page_cache_alloc+0x38c/0x5c0
[  314.631060]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.636048]  ? kasan_check_read+0x11/0x20
[  314.640215]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.645502]  ? generic_perform_write+0x6a0/0x6a0
[  314.650261]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.655810]  ? check_preemption_disabled+0x48/0x280
[  314.660870]  filemap_fault+0x1595/0x25f0
[  314.664955]  ? __lock_page_or_retry+0xa00/0xa00
[  314.669632]  ? mark_held_locks+0x130/0x130
[  314.673882]  ? filemap_map_pages+0xd6b/0x1a20
[  314.678382]  ? lock_downgrade+0x900/0x900
[  314.682537]  ? check_preemption_disabled+0x48/0x280
[  314.687563]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.692499]  ? kasan_check_read+0x11/0x20
[  314.696656]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.701945]  ? rcu_softirq_qs+0x20/0x20
[  314.706030]  ? filemap_map_pages+0xd92/0x1a20
[  314.710552]  ? find_get_entries_tag+0x1400/0x1400
[  314.715401]  ? find_held_lock+0x36/0x1c0
[  314.719486]  ? lock_acquire+0x1ed/0x520
[  314.723468]  ? ext4_filemap_fault+0x7a/0xad
[  314.727802]  ? lock_release+0xa00/0xa00
[  314.731778]  ? perf_trace_sched_process_exec+0x860/0x860
[  314.737240]  ? print_usage_bug+0xc0/0xc0
[  314.741311]  ? print_usage_bug+0xc0/0xc0
[  314.745386]  ? down_read+0x8d/0x120
[  314.749020]  ? ext4_filemap_fault+0x7a/0xad
[  314.753776]  ? __down_interruptible+0x700/0x700
[  314.758479]  ext4_filemap_fault+0x82/0xad
[  314.762638]  __do_fault+0x100/0x6b0
[  314.766271]  ? find_held_lock+0x36/0x1c0
[  314.770352]  ? pmd_devmap_trans_unstable+0x220/0x220
[  314.775480]  ? mark_held_locks+0x130/0x130
[  314.779727]  ? mark_held_locks+0x130/0x130
[  314.783986]  ? kasan_check_read+0x11/0x20
[  314.788144]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.793696]  __handle_mm_fault+0x3ea0/0x5be0
[  314.798110]  ? perf_trace_lock+0x7a0/0x7a0
[  314.802356]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  314.807223]  ? __switch_to_asm+0x34/0x70
[  314.811286]  ? __switch_to_asm+0x34/0x70
[  314.815370]  ? zap_class+0x640/0x640
[  314.819089]  ? zap_class+0x640/0x640
[  314.822806]  ? __x64_sys_futex+0x53e/0x6a0
[  314.827053]  ? find_held_lock+0x36/0x1c0
[  314.831135]  ? handle_mm_fault+0x42a/0xc70
[  314.835377]  ? lock_downgrade+0x900/0x900
[  314.839532]  ? check_preemption_disabled+0x48/0x280
[  314.844564]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  314.849505]  ? kasan_check_read+0x11/0x20
[  314.853657]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.858945]  ? rcu_softirq_qs+0x20/0x20
[  314.862942]  ? trace_hardirqs_off_caller+0x310/0x310
[  314.868061]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.873611]  ? check_preemption_disabled+0x48/0x280
[  314.878642]  handle_mm_fault+0x54f/0xc70
[  314.882713]  ? __handle_mm_fault+0x5be0/0x5be0
[  314.887303]  ? find_vma+0x34/0x190
[  314.890856]  __do_page_fault+0x5e8/0xe60
[  314.894921]  ? trace_hardirqs_off+0xb8/0x310
[  314.899359]  do_page_fault+0xf2/0x7e0
[  314.903168]  ? vmalloc_sync_all+0x30/0x30
[  314.907320]  ? error_entry+0x70/0xd0
[  314.911046]  ? trace_hardirqs_off_caller+0xbb/0x310
[  314.916070]  ? trace_hardirqs_on_caller+0xc0/0x310
[  314.921007]  ? syscall_return_slowpath+0x5e0/0x5e0
[  314.925953]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  314.930806]  ? trace_hardirqs_on_caller+0x310/0x310
[  314.935829]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  314.941296]  ? prepare_exit_to_usermode+0x291/0x3b0
[  314.946321]  ? page_fault+0x8/0x30
[  314.949871]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  314.954723]  ? page_fault+0x8/0x30
[  314.958266]  page_fault+0x1e/0x30
[  314.961719] RIP: 0033:0x44b69a
[  314.964939] Code: Bad RIP value.
[  314.968303] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  314.973667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  314.980971] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  314.988251] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  314.995530] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  315.002816] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  315.010128] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  315.010134] warn_alloc_show_mem: 1 callbacks suppressed
[  315.010142] Mem-Info:
[  315.017351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  315.022729] active_anon:47227 inactive_anon:190 isolated_anon:0
[  315.022729]  active_file:11 inactive_file:14 isolated_file:0
[  315.022729]  unevictable:0 dirty:0 writeback:0 unstable:0
[  315.022729]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  315.022729]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  315.022729]  free:13756 free_pcp:235 free_cma:0
[  315.025102] Call Trace:
[  315.034504] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  315.067410]  <IRQ>
[  315.069987] 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
[  315.097525]  dump_stack+0x244/0x39d
[  315.099650] lowmem_reserve[]: 0 2818 6321 6321
[  315.125788]  ? dump_stack_print_info.cold.1+0x20/0x20
[  315.129390] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  315.134003]  warn_alloc.cold.116+0xb7/0x1bd
[  315.139156] lowmem_reserve[]: 0 0 3503 3503
[  315.166513]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  315.170822] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  315.175150]  ? lock_downgrade+0x900/0x900
[  315.179978] lowmem_reserve[]: 0 0 0 0
[  315.208899]  ? trace_hardirqs_off+0xb8/0x310
[  315.213047] 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
[  315.216866]  ? trace_hardirqs_off+0xb8/0x310
[  315.221248] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  315.234808]  __alloc_pages_slowpath+0x26e8/0x2e10
[  315.239194] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  315.254494]  ? warn_alloc+0x120/0x120
[  315.259313] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  315.274416]  ? print_usage_bug+0xc0/0xc0
[  315.278201] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  315.287035]  ? warn_alloc+0x120/0x120
[  315.291088] 269 total pagecache pages
[  315.299674]  ? warn_alloc+0x120/0x120
[  315.303453] 0 pages in swap cache
[  315.307248]  ? print_usage_bug+0xc0/0xc0
[  315.311040] Swap cache stats: add 0, delete 0, find 0/0
[  315.314487]  ? kvm_clock_read+0x18/0x30
[  315.318525] Free swap  = 0kB
[  315.323895]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  315.327851] Total swap = 0kB
[  315.330894]  ? print_usage_bug+0xc0/0xc0
[  315.335888] 1965979 pages RAM
[  315.338916]  ? __lock_acquire+0x62f/0x4c20
[  315.342948] 0 pages HighMem/MovableOnly
[  315.342957] 342853 pages reserved
[  315.346072]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  315.350265] 0 pages cma reserved
[  315.350357] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  315.354252]  ? should_fail+0x22d/0xd01
[  315.354267]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.354285]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  315.357789] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  315.363255]  ? __lock_acquire+0x62f/0x4c20
[  315.366596] syz-fuzzer cpuset=/ mems_allowed=0
[  315.373095]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  315.411459]  ? __lock_acquire+0x62f/0x4c20
[  315.415705]  ? should_fail+0x22d/0xd01
[  315.419596]  ? rcu_irq_exit+0x1a2/0x390
[  315.423594]  ? mark_held_locks+0x130/0x130
[  315.427841]  ? mark_held_locks+0x130/0x130
[  315.432093]  ? mark_held_locks+0xc7/0x130
[  315.436248]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  315.441270]  ? zap_class+0x640/0x640
[  315.444992]  ? print_usage_bug+0xc0/0xc0
[  315.449066]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.454613]  ? check_preemption_disabled+0x48/0x280
[  315.459649]  ? __lock_is_held+0xb5/0x140
[  315.463725]  __alloc_pages_nodemask+0xa80/0xde0
[  315.468405]  ? zap_class+0x640/0x640
[  315.472153]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  315.477192]  ? find_held_lock+0x36/0x1c0
[  315.481273]  ? ____cache_alloc_node+0x1c7/0x1e0
[  315.485959]  ? lock_downgrade+0x900/0x900
[  315.490129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.495736]  cache_grow_begin+0xa5/0x8c0
[  315.499807]  ? do_raw_spin_unlock+0xa7/0x330
[  315.504230]  fallback_alloc+0x204/0x2e0
[  315.508217]  ____cache_alloc_node+0x1c7/0x1e0
[  315.512737]  kmem_cache_alloc_node+0xe3/0x730
[  315.517241]  ? ipv6_get_ifaddr+0x42e/0x620
[  315.521489]  __alloc_skb+0x119/0x770
[  315.525210]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.530499]  ? netdev_alloc_frag+0x1f0/0x1f0
[  315.534920]  ? lock_downgrade+0x900/0x900
[  315.539098]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.544639]  ? refcount_sub_and_test_checked+0x203/0x310
[  315.550101]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  315.555562]  ? addrconf_rs_timer+0x690/0x690
[  315.559998]  ndisc_alloc_skb+0x144/0x340
[  315.564072]  ndisc_send_rs+0x331/0x6e0
[  315.567990]  addrconf_rs_timer+0x314/0x690
[  315.572239]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.576496]  call_timer_fn+0x272/0x920
[  315.580388]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.584632]  ? process_timeout+0x40/0x40
[  315.588701]  ? __run_timers+0x7da/0xc70
[  315.592680]  ? _raw_spin_unlock_irq+0x27/0x80
[  315.597180]  ? _raw_spin_unlock_irq+0x27/0x80
[  315.601688]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.605927]  ? lockdep_hardirqs_on+0x296/0x5b0
[  315.610523]  ? trace_hardirqs_on+0xbd/0x310
[  315.614873]  ? kasan_check_read+0x11/0x20
[  315.619038]  ? __run_timers+0x7da/0xc70
[  315.623037]  ? trace_hardirqs_off_caller+0x310/0x310
[  315.628166]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.632409]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.636649]  __run_timers+0x7e5/0xc70
[  315.640469]  ? timer_fixup_init+0x70/0x70
[  315.644626]  ? lock_acquire+0x1ed/0x520
[  315.648623]  ? zap_class+0x640/0x640
[  315.652341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.657888]  ? kasan_check_read+0x11/0x20
[  315.662043]  ? do_raw_spin_lock+0x14f/0x350
[  315.666381]  ? find_held_lock+0x36/0x1c0
[  315.670477]  ? zap_class+0x640/0x640
[  315.674213]  ? pvclock_read_flags+0x160/0x160
[  315.678717]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.684273]  ? check_preemption_disabled+0x48/0x280
[  315.689318]  ? __lock_is_held+0xb5/0x140
[  315.693389]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.698949]  ? check_preemption_disabled+0x48/0x280
[  315.703990]  run_timer_softirq+0x52/0xb0
[  315.708061]  ? rcu_read_lock_sched_held+0x14f/0x180
[  315.713091]  __do_softirq+0x308/0xb7e
[  315.716904]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  315.721422]  ? lock_downgrade+0x900/0x900
[  315.725581]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  315.730702]  ? pvclock_read_flags+0x160/0x160
[  315.735211]  ? lapic_next_event+0x5a/0x90
[  315.739373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.744987]  ? kvm_clock_read+0x18/0x30
[  315.748974]  ? kvm_sched_clock_read+0x9/0x20
[  315.753393]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.758951]  ? check_preemption_disabled+0x48/0x280
[  315.763989]  irq_exit+0x17f/0x1c0
[  315.767456]  smp_apic_timer_interrupt+0x1cb/0x760
[  315.772310]  ? smp_call_function_single_interrupt+0x159/0x650
[  315.778211]  ? smp_call_function_single_interrupt+0x650/0x650
[  315.784107]  ? interrupt_entry+0xb5/0xc0
[  315.788183]  ? trace_hardirqs_off_caller+0xbb/0x310
[  315.793211]  ? trace_hardirqs_off_caller+0xbb/0x310
[  315.798239]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  315.803099]  ? trace_hardirqs_on_caller+0x310/0x310
[  315.808131]  ? trace_hardirqs_on_caller+0x310/0x310
[  315.813345]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  315.818203]  apic_timer_interrupt+0xf/0x20
[  315.822437]  </IRQ>
[  315.824682] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  315.829627] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  315.848570] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  315.856298] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  315.863581] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  315.870866] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  315.878155] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  315.885956] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  315.893290]  skb_clone+0x1bb/0x500
[  315.896856]  ? skb_split+0x11e0/0x11e0
[  315.900750]  ? check_preemption_disabled+0x48/0x280
[  315.905781]  ? __this_cpu_preempt_check+0x1c/0x20
[  315.910633]  ? __bpf_redirect+0x54b/0xb20
[  315.914795]  bpf_clone_redirect+0xb9/0x490
[  315.919047]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  315.924077]  ? __sched_text_start+0x8/0x8
[  315.928233]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  315.933008]  ? find_held_lock+0x36/0x1c0
[  315.937174]  ? lock_acquire+0x1ed/0x520
[  315.941158]  ? bpf_test_run+0x3cb/0x780
[  315.945146]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.950713]  ? check_preemption_disabled+0x48/0x280
[  315.955790]  ? kasan_check_read+0x11/0x20
[  315.959949]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.965233]  ? rcu_softirq_qs+0x20/0x20
[  315.969217]  ? preempt_schedule+0x4d/0x60
[  315.973376]  ? ___preempt_schedule+0x16/0x18
[  315.977801]  ? bpf_test_run+0x25d/0x780
[  315.981793]  ? netlink_diag_dump+0x2a0/0x2a0
[  315.986213]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  315.990979]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  315.995750]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  316.000603]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  316.006145]  ? fput+0x130/0x1a0
[  316.009433]  ? __bpf_prog_get+0x9b/0x290
[  316.013501]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  316.018357]  ? bpf_prog_test_run+0x130/0x1a0
[  316.022773]  ? __x64_sys_bpf+0x3d8/0x520
[  316.026864]  ? bpf_prog_get+0x20/0x20
[  316.030697]  ? do_syscall_64+0x1b9/0x820
[  316.034761]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  316.040136]  ? syscall_return_slowpath+0x5e0/0x5e0
[  316.045081]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  316.049942]  ? trace_hardirqs_on_caller+0x310/0x310
[  316.054987]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  316.060023]  ? prepare_exit_to_usermode+0x291/0x3b0
[  316.065055]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  316.069921]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  316.075330] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  316.075431] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  316.082292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  316.082298] Call Trace:
[  316.082306]  <IRQ>
[  316.082329]  dump_stack+0x244/0x39d
[  316.082345]  ? dump_stack_print_info.cold.1+0x20/0x20
[  316.082376]  warn_alloc.cold.116+0xb7/0x1bd
[  316.088927] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  316.098219]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  316.100783] syz-executor4 cpuset=syz4 mems_allowed=0
[  316.102943]  ? lock_downgrade+0x900/0x900
[  316.140602]  ? trace_hardirqs_off+0xb8/0x310
[  316.145028]  ? trace_hardirqs_off+0xb8/0x310
[  316.149462]  __alloc_pages_slowpath+0x26e8/0x2e10
[  316.154342]  ? warn_alloc+0x120/0x120
[  316.158153]  ? print_usage_bug+0xc0/0xc0
[  316.162219]  ? warn_alloc+0x120/0x120
[  316.166038]  ? warn_alloc+0x120/0x120
[  316.169852]  ? print_usage_bug+0xc0/0xc0
[  316.173963]  ? print_usage_bug+0xc0/0xc0
[  316.178038]  ? __lock_acquire+0x62f/0x4c20
[  316.182290]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.187838]  ? should_fail+0x22d/0xd01
[  316.191738]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  316.196853]  ? __lock_acquire+0x62f/0x4c20
[  316.201100]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  316.206207]  ? __lock_acquire+0x62f/0x4c20
[  316.210452]  ? should_fail+0x22d/0xd01
[  316.214351]  ? find_held_lock+0x36/0x1c0
[  316.218431]  ? mark_held_locks+0x130/0x130
[  316.222675]  ? mark_held_locks+0x130/0x130
[  316.226911]  ? zap_class+0x640/0x640
[  316.230635]  ? zap_class+0x640/0x640
[  316.234357]  ? print_usage_bug+0xc0/0xc0
[  316.238426]  ? do_raw_spin_unlock+0xa7/0x330
[  316.242845]  ? zap_class+0x640/0x640
[  316.246564]  ? print_usage_bug+0xc0/0xc0
[  316.250670]  ? wq_watchdog_touch+0x9c/0xfe
[  316.254923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.260479]  ? check_preemption_disabled+0x48/0x280
[  316.265516]  ? __lock_is_held+0xb5/0x140
[  316.269595]  __alloc_pages_nodemask+0xa80/0xde0
[  316.274270]  ? zap_class+0x640/0x640
[  316.277990]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  316.283030]  ? find_held_lock+0x36/0x1c0
[  316.287122]  ? ____cache_alloc_node+0x1c7/0x1e0
[  316.291796]  ? lock_downgrade+0x900/0x900
[  316.295966]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.301516]  cache_grow_begin+0xa5/0x8c0
[  316.305582]  ? do_raw_spin_unlock+0xa7/0x330
[  316.310007]  fallback_alloc+0x204/0x2e0
[  316.314001]  ____cache_alloc_node+0x1c7/0x1e0
[  316.318510]  kmem_cache_alloc_node+0xe3/0x730
[  316.323018]  ? ipv6_get_ifaddr+0x42e/0x620
[  316.327275]  __alloc_skb+0x119/0x770
[  316.330994]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.336286]  ? netdev_alloc_frag+0x1f0/0x1f0
[  316.340700]  ? lock_downgrade+0x900/0x900
[  316.344864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.350410]  ? refcount_sub_and_test_checked+0x203/0x310
[  316.355869]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  316.361328]  ? addrconf_rs_timer+0x690/0x690
[  316.365754]  ndisc_alloc_skb+0x144/0x340
[  316.369829]  ndisc_send_rs+0x331/0x6e0
[  316.373736]  addrconf_rs_timer+0x314/0x690
[  316.377978]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.382240]  call_timer_fn+0x272/0x920
[  316.386135]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.390374]  ? process_timeout+0x40/0x40
[  316.394451]  ? mark_held_locks+0xc7/0x130
[  316.398609]  ? _raw_spin_unlock_irq+0x27/0x80
[  316.403108]  ? _raw_spin_unlock_irq+0x27/0x80
[  316.407607]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.411853]  ? lockdep_hardirqs_on+0x296/0x5b0
[  316.416449]  ? trace_hardirqs_on+0xbd/0x310
[  316.420779]  ? kasan_check_read+0x11/0x20
[  316.424940]  ? __run_timers+0x7da/0xc70
[  316.428924]  ? trace_hardirqs_off_caller+0x310/0x310
[  316.434053]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.438313]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.442571]  __run_timers+0x7e5/0xc70
[  316.446391]  ? timer_fixup_init+0x70/0x70
[  316.450579]  ? kasan_check_read+0x11/0x20
[  316.454738]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.460021]  ? rcu_softirq_qs+0x20/0x20
[  316.464011]  ? mark_held_locks+0xc7/0x130
[  316.468176]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  316.472947]  ? retint_kernel+0x2d/0x2d
[  316.476865]  ? trace_hardirqs_on_caller+0xc0/0x310
[  316.481811]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  316.486580]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  316.492046]  ? zap_class+0x640/0x640
[  316.495774]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.501325]  ? check_preemption_disabled+0x48/0x280
[  316.506359]  ? __lock_is_held+0xb5/0x140
[  316.510429]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.515979]  ? check_preemption_disabled+0x48/0x280
[  316.521010]  run_timer_softirq+0x52/0xb0
[  316.525082]  ? rcu_read_lock_sched_held+0x14f/0x180
[  316.530117]  __do_softirq+0x308/0xb7e
[  316.533948]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  316.538465]  ? lock_downgrade+0x900/0x900
[  316.542640]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  316.547759]  ? pvclock_read_flags+0x160/0x160
[  316.552265]  ? lapic_next_event+0x5a/0x90
[  316.556425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.561985]  ? kvm_clock_read+0x18/0x30
[  316.565973]  ? kvm_sched_clock_read+0x9/0x20
[  316.570393]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.575952]  ? check_preemption_disabled+0x48/0x280
[  316.580989]  irq_exit+0x17f/0x1c0
[  316.584456]  smp_apic_timer_interrupt+0x1cb/0x760
[  316.589306]  ? smp_call_function_single_interrupt+0x650/0x650
[  316.595196]  ? interrupt_entry+0xb5/0xc0
[  316.599266]  ? trace_hardirqs_off_caller+0xbb/0x310
[  316.604292]  ? trace_hardirqs_off_caller+0xbb/0x310
[  316.609353]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  316.614208]  ? trace_hardirqs_on_caller+0x310/0x310
[  316.619227]  ? trace_hardirqs_on_caller+0x310/0x310
[  316.624267]  ? task_prio+0x50/0x50
[  316.627819]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.633367]  ? check_preemption_disabled+0x48/0x280
[  316.638398]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  316.643257]  apic_timer_interrupt+0xf/0x20
[  316.647489]  </IRQ>
[  316.649735] RIP: 0010:dump_stack+0x358/0x39d
[  316.654152] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  316.673078] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  316.680799] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  316.688076] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  316.695350] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  316.702623] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  316.709905] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  316.717213]  ? dump_stack+0x34f/0x39d
[  316.721061]  ? dump_stack_print_info.cold.1+0x20/0x20
[  316.726269]  ? mark_held_locks+0x130/0x130
[  316.730512]  ? mark_held_locks+0x130/0x130
[  316.734760]  dump_header+0x27b/0xf72
[  316.738494]  ? pagefault_out_of_memory+0x197/0x197
[  316.743441]  ? __lock_acquire+0x62f/0x4c20
[  316.747699]  ? percpu_ref_get_many+0x240/0x240
[  316.752703]  ? print_usage_bug+0xc0/0xc0
[  316.756799]  ? zap_class+0x640/0x640
[  316.760529]  ? print_usage_bug+0xc0/0xc0
[  316.764607]  ? print_usage_bug+0xc0/0xc0
[  316.768683]  ? zap_class+0x640/0x640
[  316.772407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.777965]  ? find_held_lock+0x36/0x1c0
[  316.782048]  ? mark_held_locks+0xc7/0x130
[  316.786206]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  316.791326]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  316.796444]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  316.801051]  ? trace_hardirqs_on+0xbd/0x310
[  316.805390]  ? kasan_check_read+0x11/0x20
[  316.809546]  ? ___ratelimit+0x3b4/0x672
[  316.813535]  ? trace_hardirqs_off_caller+0x310/0x310
[  316.818649]  ? trace_hardirqs_on+0x310/0x310
[  316.823072]  ? lock_downgrade+0x900/0x900
[  316.827236]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  316.832360]  ? ___ratelimit+0x3b9/0x672
[  316.836343]  ? idr_get_free+0xf70/0xf70
[  316.840326]  ? find_held_lock+0x36/0x1c0
[  316.844401]  oom_kill_process.cold.27+0x10/0x903
[  316.849171]  ? zap_class+0x640/0x640
[  316.852920]  ? check_preemption_disabled+0x48/0x280
[  316.857966]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  316.862926]  ? kasan_check_read+0x11/0x20
[  316.867129]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.872448]  ? oom_evaluate_task+0x540/0x540
[  316.876872]  ? find_held_lock+0x36/0x1c0
[  316.880954]  ? out_of_memory+0x974/0x1430
[  316.885129]  ? lock_downgrade+0x900/0x900
[  316.889289]  ? check_preemption_disabled+0x48/0x280
[  316.894322]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  316.899262]  ? kasan_check_read+0x11/0x20
[  316.903437]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.908722]  ? rcu_softirq_qs+0x20/0x20
[  316.912716]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.918266]  ? oom_evaluate_task+0x302/0x540
[  316.922685]  out_of_memory+0xa84/0x1430
[  316.926675]  ? oom_killer_disable+0x3a0/0x3a0
[  316.931182]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  316.936132]  ? __ww_mutex_check_waiters+0x160/0x160
[  316.941182]  __alloc_pages_slowpath+0x2354/0x2e10
[  316.946080]  ? warn_alloc+0x120/0x120
[  316.949896]  ? mark_held_locks+0x130/0x130
[  316.954150]  ? find_get_entry+0xaae/0x1120
[  316.958399]  ? filemap_map_pages+0x1a20/0x1a20
[  316.962999]  ? zap_class+0x640/0x640
[  316.966740]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.972303]  ? check_preemption_disabled+0x48/0x280
[  316.977331]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.982883]  ? should_fail+0x22d/0xd01
[  316.986796]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  316.991915]  ? zap_class+0x640/0x640
[  316.995673]  ? __lock_is_held+0xb5/0x140
[  316.999750]  ? mark_held_locks+0x130/0x130
[  317.005391]  ? lock_release+0xa00/0xa00
[  317.009378]  ? perf_trace_sched_process_exec+0x860/0x860
[  317.014846]  ? xa_load+0x2ba/0x460
[  317.018391]  ? lock_downgrade+0x900/0x900
[  317.022551]  ? __might_sleep+0x95/0x190
[  317.026545]  __alloc_pages_nodemask+0xa80/0xde0
[  317.031232]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  317.036265]  ? __page_cache_alloc+0x191/0x5c0
[  317.040796]  ? xa_load+0x2e1/0x460
[  317.044344]  ? xa_clear_mark+0x40/0x40
[  317.048238]  ? zap_class+0x640/0x640
[  317.051972]  ? zap_class+0x640/0x640
[  317.055694]  ? zap_class+0x640/0x640
[  317.059427]  ? __do_page_cache_readahead+0x663/0x810
[  317.064547]  ? find_held_lock+0x36/0x1c0
[  317.068628]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  317.074183]  alloc_pages_current+0x173/0x350
[  317.078613]  __page_cache_alloc+0x38c/0x5c0
[  317.082955]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  317.087898]  ? kasan_check_read+0x11/0x20
[  317.092069]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.097362]  ? generic_perform_write+0x6a0/0x6a0
[  317.102134]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.107685]  ? check_preemption_disabled+0x48/0x280
[  317.112722]  filemap_fault+0x1595/0x25f0
[  317.116805]  ? __lock_page_or_retry+0xa00/0xa00
[  317.121488]  ? mark_held_locks+0x130/0x130
[  317.125746]  ? filemap_map_pages+0xd6b/0x1a20
[  317.130265]  ? lock_downgrade+0x900/0x900
[  317.134421]  ? check_preemption_disabled+0x48/0x280
[  317.139454]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  317.144393]  ? kasan_check_read+0x11/0x20
[  317.148555]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.153843]  ? rcu_softirq_qs+0x20/0x20
[  317.157852]  ? filemap_map_pages+0xd92/0x1a20
[  317.162365]  ? find_get_entries_tag+0x1400/0x1400
[  317.167222]  ? find_held_lock+0x36/0x1c0
[  317.171317]  ? lock_acquire+0x1ed/0x520
[  317.175303]  ? ext4_filemap_fault+0x7a/0xad
[  317.179644]  ? lock_release+0xa00/0xa00
[  317.183633]  ? perf_trace_sched_process_exec+0x860/0x860
[  317.189099]  ? print_usage_bug+0xc0/0xc0
[  317.193172]  ? print_usage_bug+0xc0/0xc0
[  317.197254]  ? down_read+0x8d/0x120
[  317.200886]  ? ext4_filemap_fault+0x7a/0xad
[  317.205222]  ? __down_interruptible+0x700/0x700
[  317.209912]  ext4_filemap_fault+0x82/0xad
[  317.214090]  __do_fault+0x100/0x6b0
[  317.217724]  ? find_held_lock+0x36/0x1c0
[  317.221798]  ? pmd_devmap_trans_unstable+0x220/0x220
[  317.226913]  ? mark_held_locks+0x130/0x130
[  317.231165]  ? mark_held_locks+0x130/0x130
[  317.235421]  ? kasan_check_read+0x11/0x20
[  317.239576]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.245134]  __handle_mm_fault+0x3ea0/0x5be0
[  317.249552]  ? perf_trace_lock+0x7a0/0x7a0
[  317.253807]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  317.258672]  ? __switch_to_asm+0x34/0x70
[  317.262744]  ? __switch_to_asm+0x34/0x70
[  317.266834]  ? zap_class+0x640/0x640
[  317.270562]  ? zap_class+0x640/0x640
[  317.274283]  ? __x64_sys_futex+0x53e/0x6a0
[  317.278527]  ? find_held_lock+0x36/0x1c0
[  317.282606]  ? handle_mm_fault+0x42a/0xc70
[  317.286849]  ? lock_downgrade+0x900/0x900
[  317.291008]  ? check_preemption_disabled+0x48/0x280
[  317.296048]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  317.300992]  ? kasan_check_read+0x11/0x20
[  317.305149]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.310438]  ? rcu_softirq_qs+0x20/0x20
[  317.314424]  ? trace_hardirqs_off_caller+0x310/0x310
[  317.319536]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.325084]  ? check_preemption_disabled+0x48/0x280
[  317.330120]  handle_mm_fault+0x54f/0xc70
[  317.334192]  ? __handle_mm_fault+0x5be0/0x5be0
[  317.338796]  ? find_vma+0x34/0x190
[  317.342351]  __do_page_fault+0x5e8/0xe60
[  317.346423]  ? trace_hardirqs_off+0xb8/0x310
[  317.350854]  do_page_fault+0xf2/0x7e0
[  317.354667]  ? vmalloc_sync_all+0x30/0x30
[  317.358826]  ? error_entry+0x70/0xd0
[  317.362548]  ? trace_hardirqs_off_caller+0xbb/0x310
[  317.367575]  ? trace_hardirqs_on_caller+0xc0/0x310
[  317.372516]  ? syscall_return_slowpath+0x5e0/0x5e0
[  317.377455]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  317.382315]  ? trace_hardirqs_on_caller+0x310/0x310
[  317.387342]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  317.392807]  ? prepare_exit_to_usermode+0x291/0x3b0
[  317.397833]  ? page_fault+0x8/0x30
[  317.401384]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  317.406245]  ? page_fault+0x8/0x30
[  317.409795]  page_fault+0x1e/0x30
[  317.413264] RIP: 0033:0x44b69a
[  317.416478] Code: Bad RIP value.
[  317.419844] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  317.425208] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  317.432484] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  317.439762] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  317.447041] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  317.454367] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  317.461676] warn_alloc_show_mem: 1 callbacks suppressed
[  317.461689] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  317.461691] Mem-Info:
[  317.461723] active_anon:47227 inactive_anon:190 isolated_anon:0
[  317.461723]  active_file:11 inactive_file:14 isolated_file:0
[  317.461723]  unevictable:0 dirty:0 writeback:0 unstable:0
[  317.461723]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  317.461723]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  317.461723]  free:13756 free_pcp:235 free_cma:0
[  317.467078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  317.474297] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  317.476703] Call Trace:
[  317.509589] 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
[  317.518975]  <IRQ>
[  317.546479] lowmem_reserve[]: 0 2818 6321 6321
[  317.549077]  dump_stack+0x244/0x39d
[  317.575178] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  317.577346]  ? dump_stack_print_info.cold.1+0x20/0x20
[  317.581882] lowmem_reserve[]: 0 0 3503 3503
[  317.585537]  warn_alloc.cold.116+0xb7/0x1bd
[  317.612837] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  317.618047]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  317.622346] lowmem_reserve[]: 0 0 0 0
[  317.626688]  ? lock_downgrade+0x900/0x900
[  317.655560] 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
[  317.660447]  ? trace_hardirqs_off+0xb8/0x310
[  317.664219] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  317.668375]  ? trace_hardirqs_off+0xb8/0x310
[  317.681907] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  317.686344]  __alloc_pages_slowpath+0x26e8/0x2e10
[  317.701599] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  317.706057]  ? warn_alloc+0x120/0x120
[  317.721130] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  317.725987]  ? print_usage_bug+0xc0/0xc0
[  317.734825] 269 total pagecache pages
[  317.738635]  ? warn_alloc+0x120/0x120
[  317.747191] 0 pages in swap cache
[  317.751253]  ? warn_alloc+0x120/0x120
[  317.755023] Swap cache stats: add 0, delete 0, find 0/0
[  317.758819]  ? print_usage_bug+0xc0/0xc0
[  317.762242] Free swap  = 0kB
[  317.766044]  ? print_usage_bug+0xc0/0xc0
[  317.771392] Total swap = 0kB
[  317.775464]  ? __lock_acquire+0x62f/0x4c20
[  317.778457] 1965979 pages RAM
[  317.782521]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.785508] 0 pages HighMem/MovableOnly
[  317.789750]  ? should_fail+0x22d/0xd01
[  317.792827] 342853 pages reserved
[  317.798366]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  317.802312] 0 pages cma reserved
[  317.806208]  ? __lock_acquire+0x62f/0x4c20
[  317.809710] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  317.814735]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  317.814753]  ? __lock_acquire+0x62f/0x4c20
[  317.814770]  ? should_fail+0x22d/0xd01
[  317.818190] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  317.822353]  ? find_held_lock+0x36/0x1c0
[  317.828825] syz-fuzzer cpuset=/ mems_allowed=0
[  317.833943]  ? mark_held_locks+0x130/0x130
[  317.865146]  ? mark_held_locks+0x130/0x130
[  317.869399]  ? zap_class+0x640/0x640
[  317.873123]  ? zap_class+0x640/0x640
[  317.876844]  ? print_usage_bug+0xc0/0xc0
[  317.880915]  ? do_raw_spin_unlock+0xa7/0x330
[  317.885866]  ? zap_class+0x640/0x640
[  317.889586]  ? print_usage_bug+0xc0/0xc0
[  317.893651]  ? wq_watchdog_touch+0x9c/0xfe
[  317.897904]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.903459]  ? check_preemption_disabled+0x48/0x280
[  317.908498]  ? __lock_is_held+0xb5/0x140
[  317.912579]  __alloc_pages_nodemask+0xa80/0xde0
[  317.917255]  ? zap_class+0x640/0x640
[  317.920986]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  317.926026]  ? find_held_lock+0x36/0x1c0
[  317.930107]  ? ____cache_alloc_node+0x1c7/0x1e0
[  317.934787]  ? lock_downgrade+0x900/0x900
[  317.938962]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.944521]  cache_grow_begin+0xa5/0x8c0
[  317.948615]  ? do_raw_spin_unlock+0xa7/0x330
[  317.953039]  fallback_alloc+0x204/0x2e0
[  317.957028]  ____cache_alloc_node+0x1c7/0x1e0
[  317.961549]  kmem_cache_alloc_node+0xe3/0x730
[  317.966055]  ? ipv6_get_ifaddr+0x42e/0x620
[  317.970314]  __alloc_skb+0x119/0x770
[  317.974034]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.979323]  ? netdev_alloc_frag+0x1f0/0x1f0
[  317.983744]  ? lock_downgrade+0x900/0x900
[  317.987910]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.993472]  ? refcount_sub_and_test_checked+0x203/0x310
[  317.998949]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  318.004412]  ? addrconf_rs_timer+0x690/0x690
[  318.008837]  ndisc_alloc_skb+0x144/0x340
[  318.012909]  ndisc_send_rs+0x331/0x6e0
[  318.016818]  addrconf_rs_timer+0x314/0x690
[  318.021071]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.025328]  call_timer_fn+0x272/0x920
[  318.029226]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.033504]  ? process_timeout+0x40/0x40
[  318.037582]  ? __run_timers+0x7da/0xc70
[  318.041565]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.046063]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.050566]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.054811]  ? lockdep_hardirqs_on+0x296/0x5b0
[  318.059404]  ? trace_hardirqs_on+0xbd/0x310
[  318.063729]  ? kasan_check_read+0x11/0x20
[  318.067880]  ? __run_timers+0x7da/0xc70
[  318.071865]  ? trace_hardirqs_off_caller+0x310/0x310
[  318.076982]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.081228]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.085467]  __run_timers+0x7e5/0xc70
[  318.089288]  ? timer_fixup_init+0x70/0x70
[  318.093445]  ? lock_acquire+0x1ed/0x520
[  318.097427]  ? zap_class+0x640/0x640
[  318.101156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.106714]  ? kasan_check_read+0x11/0x20
[  318.110867]  ? do_raw_spin_lock+0x14f/0x350
[  318.115206]  ? find_held_lock+0x36/0x1c0
[  318.119280]  ? zap_class+0x640/0x640
[  318.123002]  ? pvclock_read_flags+0x160/0x160
[  318.127511]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.133073]  ? check_preemption_disabled+0x48/0x280
[  318.138114]  ? __lock_is_held+0xb5/0x140
[  318.142186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.147733]  ? check_preemption_disabled+0x48/0x280
[  318.152766]  run_timer_softirq+0x52/0xb0
[  318.156852]  ? rcu_read_lock_sched_held+0x14f/0x180
[  318.161874]  __do_softirq+0x308/0xb7e
[  318.165689]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  318.170199]  ? lock_downgrade+0x900/0x900
[  318.174363]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  318.179485]  ? pvclock_read_flags+0x160/0x160
[  318.183989]  ? lapic_next_event+0x5a/0x90
[  318.188155]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.193712]  ? kvm_clock_read+0x18/0x30
[  318.197693]  ? kvm_sched_clock_read+0x9/0x20
[  318.202111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.207658]  ? check_preemption_disabled+0x48/0x280
[  318.212708]  irq_exit+0x17f/0x1c0
[  318.216180]  smp_apic_timer_interrupt+0x1cb/0x760
[  318.221028]  ? smp_call_function_single_interrupt+0x159/0x650
[  318.226948]  ? smp_call_function_single_interrupt+0x650/0x650
[  318.232840]  ? interrupt_entry+0xb5/0xc0
[  318.236920]  ? trace_hardirqs_off_caller+0xbb/0x310
[  318.241961]  ? trace_hardirqs_off_caller+0xbb/0x310
[  318.246990]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.251840]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.256861]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.261895]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.266755]  apic_timer_interrupt+0xf/0x20
[  318.270993]  </IRQ>
[  318.273253] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  318.278189] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  318.297108] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  318.304975] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  318.312260] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  318.319550] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  318.326837] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  318.334120] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  318.341456]  skb_clone+0x1bb/0x500
[  318.345035]  ? skb_split+0x11e0/0x11e0
[  318.348952]  ? check_preemption_disabled+0x48/0x280
[  318.353993]  ? __this_cpu_preempt_check+0x1c/0x20
[  318.358850]  ? __bpf_redirect+0x54b/0xb20
[  318.363018]  bpf_clone_redirect+0xb9/0x490
[  318.367278]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  318.372315]  ? __sched_text_start+0x8/0x8
[  318.376473]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  318.381252]  ? find_held_lock+0x36/0x1c0
[  318.385332]  ? lock_acquire+0x1ed/0x520
[  318.389315]  ? bpf_test_run+0x3cb/0x780
[  318.393306]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.398862]  ? check_preemption_disabled+0x48/0x280
[  318.403894]  ? kasan_check_read+0x11/0x20
[  318.408046]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.413334]  ? rcu_softirq_qs+0x20/0x20
[  318.417320]  ? preempt_schedule+0x4d/0x60
[  318.421490]  ? ___preempt_schedule+0x16/0x18
[  318.425915]  ? bpf_test_run+0x25d/0x780
[  318.429917]  ? netlink_diag_dump+0x2a0/0x2a0
[  318.434352]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  318.439126]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  318.443897]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  318.448755]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  318.454311]  ? fput+0x130/0x1a0
[  318.457602]  ? __bpf_prog_get+0x9b/0x290
[  318.461676]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  318.466525]  ? bpf_prog_test_run+0x130/0x1a0
[  318.470960]  ? __x64_sys_bpf+0x3d8/0x520
[  318.475037]  ? bpf_prog_get+0x20/0x20
[  318.478888]  ? do_syscall_64+0x1b9/0x820
[  318.482972]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  318.488358]  ? syscall_return_slowpath+0x5e0/0x5e0
[  318.493319]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.498184]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.503349]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  318.508406]  ? prepare_exit_to_usermode+0x291/0x3b0
[  318.513446]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.518310]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  318.523705] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  318.523795] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  318.530649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  318.530660] Call Trace:
[  318.537323] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  318.546500]  <IRQ>
[  318.549077] syz-executor4 cpuset=syz4 mems_allowed=0
[  318.559585]  dump_stack+0x244/0x39d
[  318.570450]  ? dump_stack_print_info.cold.1+0x20/0x20
[  318.575660]  warn_alloc.cold.116+0xb7/0x1bd
[  318.580005]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  318.584861]  ? lock_downgrade+0x900/0x900
[  318.589024]  ? trace_hardirqs_off+0xb8/0x310
[  318.593454]  ? trace_hardirqs_off+0xb8/0x310
[  318.597875]  __alloc_pages_slowpath+0x26e8/0x2e10
[  318.602754]  ? warn_alloc+0x120/0x120
[  318.606566]  ? print_usage_bug+0xc0/0xc0
[  318.610631]  ? warn_alloc+0x120/0x120
[  318.614441]  ? warn_alloc+0x120/0x120
[  318.618251]  ? print_usage_bug+0xc0/0xc0
[  318.622326]  ? print_usage_bug+0xc0/0xc0
[  318.626399]  ? __lock_acquire+0x62f/0x4c20
[  318.630648]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  318.636193]  ? should_fail+0x22d/0xd01
[  318.640090]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  318.645201]  ? __lock_acquire+0x62f/0x4c20
[  318.649446]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  318.654555]  ? __lock_acquire+0x62f/0x4c20
[  318.658795]  ? should_fail+0x22d/0xd01
[  318.662695]  ? find_held_lock+0x36/0x1c0
[  318.666771]  ? mark_held_locks+0x130/0x130
[  318.671038]  ? mark_held_locks+0x130/0x130
[  318.675279]  ? zap_class+0x640/0x640
[  318.679002]  ? zap_class+0x640/0x640
[  318.682739]  ? print_usage_bug+0xc0/0xc0
[  318.686803]  ? do_raw_spin_unlock+0xa7/0x330
[  318.691233]  ? zap_class+0x640/0x640
[  318.694957]  ? print_usage_bug+0xc0/0xc0
[  318.699023]  ? wq_watchdog_touch+0x9c/0xfe
[  318.703284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.708834]  ? check_preemption_disabled+0x48/0x280
[  318.713877]  ? __lock_is_held+0xb5/0x140
[  318.717958]  __alloc_pages_nodemask+0xa80/0xde0
[  318.722636]  ? zap_class+0x640/0x640
[  318.726363]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  318.731400]  ? find_held_lock+0x36/0x1c0
[  318.735477]  ? ____cache_alloc_node+0x1c7/0x1e0
[  318.740156]  ? lock_downgrade+0x900/0x900
[  318.744321]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.750280]  cache_grow_begin+0xa5/0x8c0
[  318.754353]  ? do_raw_spin_unlock+0xa7/0x330
[  318.758777]  fallback_alloc+0x204/0x2e0
[  318.762764]  ____cache_alloc_node+0x1c7/0x1e0
[  318.767271]  kmem_cache_alloc_node+0xe3/0x730
[  318.771775]  ? ipv6_get_ifaddr+0x42e/0x620
[  318.776028]  __alloc_skb+0x119/0x770
[  318.779763]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.785061]  ? netdev_alloc_frag+0x1f0/0x1f0
[  318.789478]  ? lock_downgrade+0x900/0x900
[  318.793642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.799192]  ? refcount_sub_and_test_checked+0x203/0x310
[  318.804653]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  318.810119]  ? addrconf_rs_timer+0x690/0x690
[  318.814548]  ndisc_alloc_skb+0x144/0x340
[  318.818640]  ndisc_send_rs+0x331/0x6e0
[  318.822546]  addrconf_rs_timer+0x314/0x690
[  318.826796]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.831054]  call_timer_fn+0x272/0x920
[  318.834963]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.839210]  ? process_timeout+0x40/0x40
[  318.843286]  ? mark_held_locks+0xc7/0x130
[  318.847440]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.851951]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.856461]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.860715]  ? lockdep_hardirqs_on+0x296/0x5b0
[  318.865314]  ? trace_hardirqs_on+0xbd/0x310
[  318.869640]  ? kasan_check_read+0x11/0x20
[  318.873798]  ? __run_timers+0x7da/0xc70
[  318.877782]  ? trace_hardirqs_off_caller+0x310/0x310
[  318.882902]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.887157]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.891411]  __run_timers+0x7e5/0xc70
[  318.895233]  ? timer_fixup_init+0x70/0x70
[  318.899387]  ? kasan_check_read+0x11/0x20
[  318.903540]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.908828]  ? rcu_softirq_qs+0x20/0x20
[  318.912813]  ? mark_held_locks+0xc7/0x130
[  318.916979]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  318.921741]  ? retint_kernel+0x2d/0x2d
[  318.925633]  ? trace_hardirqs_on_caller+0xc0/0x310
[  318.930568]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  318.935335]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  318.940799]  ? zap_class+0x640/0x640
[  318.944532]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.950082]  ? check_preemption_disabled+0x48/0x280
[  318.955114]  ? __lock_is_held+0xb5/0x140
[  318.959187]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.964739]  ? check_preemption_disabled+0x48/0x280
[  318.969796]  run_timer_softirq+0x52/0xb0
[  318.973861]  ? rcu_read_lock_sched_held+0x14f/0x180
[  318.978887]  __do_softirq+0x308/0xb7e
[  318.982696]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  318.987194]  ? lock_downgrade+0x900/0x900
[  318.991361]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  318.996479]  ? pvclock_read_flags+0x160/0x160
[  319.000984]  ? lapic_next_event+0x5a/0x90
[  319.005140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  319.010688]  ? kvm_clock_read+0x18/0x30
[  319.014665]  ? kvm_sched_clock_read+0x9/0x20
[  319.019082]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.024632]  ? check_preemption_disabled+0x48/0x280
[  319.029667]  irq_exit+0x17f/0x1c0
[  319.033126]  smp_apic_timer_interrupt+0x1cb/0x760
[  319.037977]  ? smp_call_function_single_interrupt+0x650/0x650
[  319.043864]  ? interrupt_entry+0xb5/0xc0
[  319.047940]  ? trace_hardirqs_off_caller+0xbb/0x310
[  319.052965]  ? trace_hardirqs_off_caller+0xbb/0x310
[  319.057991]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  319.062841]  ? trace_hardirqs_on_caller+0x310/0x310
[  319.067864]  ? trace_hardirqs_on_caller+0x310/0x310
[  319.072886]  ? task_prio+0x50/0x50
[  319.076432]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.081981]  ? check_preemption_disabled+0x48/0x280
[  319.087015]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  319.091877]  apic_timer_interrupt+0xf/0x20
[  319.096115]  </IRQ>
[  319.098364] RIP: 0010:dump_stack+0x358/0x39d
[  319.102779] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  319.121699] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  319.129420] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  319.136702] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  319.143978] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  319.151252] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  319.158540] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  319.165847]  ? dump_stack+0x34f/0x39d
[  319.169672]  ? dump_stack_print_info.cold.1+0x20/0x20
[  319.174884]  ? mark_held_locks+0x130/0x130
[  319.179123]  ? mark_held_locks+0x130/0x130
[  319.183383]  dump_header+0x27b/0xf72
[  319.187132]  ? pagefault_out_of_memory+0x197/0x197
[  319.192099]  ? __lock_acquire+0x62f/0x4c20
[  319.196346]  ? percpu_ref_get_many+0x240/0x240
[  319.200947]  ? print_usage_bug+0xc0/0xc0
[  319.205028]  ? zap_class+0x640/0x640
[  319.208757]  ? print_usage_bug+0xc0/0xc0
[  319.212831]  ? print_usage_bug+0xc0/0xc0
[  319.216898]  ? zap_class+0x640/0x640
[  319.220637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  319.226191]  ? find_held_lock+0x36/0x1c0
[  319.230267]  ? mark_held_locks+0xc7/0x130
[  319.234426]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  319.239534]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  319.244669]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  319.249262]  ? trace_hardirqs_on+0xbd/0x310
[  319.253593]  ? kasan_check_read+0x11/0x20
[  319.257746]  ? ___ratelimit+0x3b4/0x672
[  319.261727]  ? trace_hardirqs_off_caller+0x310/0x310
[  319.266840]  ? trace_hardirqs_on+0x310/0x310
[  319.271258]  ? lock_downgrade+0x900/0x900
[  319.275419]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  319.280529]  ? ___ratelimit+0x3b9/0x672
[  319.284523]  ? idr_get_free+0xf70/0xf70
[  319.288505]  ? find_held_lock+0x36/0x1c0
[  319.292586]  oom_kill_process.cold.27+0x10/0x903
[  319.297352]  ? zap_class+0x640/0x640
[  319.301074]  ? check_preemption_disabled+0x48/0x280
[  319.306107]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.311048]  ? kasan_check_read+0x11/0x20
[  319.315200]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.320482]  ? oom_evaluate_task+0x540/0x540
[  319.324913]  ? find_held_lock+0x36/0x1c0
[  319.328992]  ? out_of_memory+0x974/0x1430
[  319.333189]  ? lock_downgrade+0x900/0x900
[  319.337342]  ? check_preemption_disabled+0x48/0x280
[  319.342374]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.347308]  ? kasan_check_read+0x11/0x20
[  319.351460]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.356740]  ? rcu_softirq_qs+0x20/0x20
[  319.360726]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.366275]  ? oom_evaluate_task+0x302/0x540
[  319.370698]  out_of_memory+0xa84/0x1430
[  319.374688]  ? oom_killer_disable+0x3a0/0x3a0
[  319.379187]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  319.384128]  ? __ww_mutex_check_waiters+0x160/0x160
[  319.389158]  __alloc_pages_slowpath+0x2354/0x2e10
[  319.394070]  ? warn_alloc+0x120/0x120
[  319.397874]  ? mark_held_locks+0x130/0x130
[  319.402122]  ? find_get_entry+0xaae/0x1120
[  319.406374]  ? filemap_map_pages+0x1a20/0x1a20
[  319.410982]  ? zap_class+0x640/0x640
[  319.414706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  319.420251]  ? check_preemption_disabled+0x48/0x280
[  319.425291]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.430834]  ? should_fail+0x22d/0xd01
[  319.434731]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  319.439842]  ? zap_class+0x640/0x640
[  319.443587]  ? __lock_is_held+0xb5/0x140
[  319.447657]  ? mark_held_locks+0x130/0x130
[  319.451896]  ? lock_release+0xa00/0xa00
[  319.455886]  ? perf_trace_sched_process_exec+0x860/0x860
[  319.461342]  ? xa_load+0x2ba/0x460
[  319.464886]  ? lock_downgrade+0x900/0x900
[  319.469053]  ? __might_sleep+0x95/0x190
[  319.473047]  __alloc_pages_nodemask+0xa80/0xde0
[  319.477729]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  319.482752]  ? __page_cache_alloc+0x191/0x5c0
[  319.487254]  ? xa_load+0x2e1/0x460
[  319.490799]  ? xa_clear_mark+0x40/0x40
[  319.494695]  ? zap_class+0x640/0x640
[  319.498421]  ? zap_class+0x640/0x640
[  319.502138]  ? zap_class+0x640/0x640
[  319.505858]  ? __do_page_cache_readahead+0x663/0x810
[  319.510977]  ? find_held_lock+0x36/0x1c0
[  319.515074]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  319.520632]  alloc_pages_current+0x173/0x350
[  319.525063]  __page_cache_alloc+0x38c/0x5c0
[  319.529388]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.534322]  ? kasan_check_read+0x11/0x20
[  319.538475]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.543763]  ? generic_perform_write+0x6a0/0x6a0
[  319.548530]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.554087]  ? check_preemption_disabled+0x48/0x280
[  319.559126]  filemap_fault+0x1595/0x25f0
[  319.563203]  ? __lock_page_or_retry+0xa00/0xa00
[  319.567910]  ? mark_held_locks+0x130/0x130
[  319.572165]  ? filemap_map_pages+0xd6b/0x1a20
[  319.576676]  ? lock_downgrade+0x900/0x900
[  319.580832]  ? check_preemption_disabled+0x48/0x280
[  319.585855]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.590797]  ? kasan_check_read+0x11/0x20
[  319.594959]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.600251]  ? rcu_softirq_qs+0x20/0x20
[  319.604245]  ? filemap_map_pages+0xd92/0x1a20
[  319.608757]  ? find_get_entries_tag+0x1400/0x1400
[  319.613607]  ? find_held_lock+0x36/0x1c0
[  319.617690]  ? lock_acquire+0x1ed/0x520
[  319.621667]  ? ext4_filemap_fault+0x7a/0xad
[  319.625998]  ? lock_release+0xa00/0xa00
[  319.629975]  ? perf_trace_sched_process_exec+0x860/0x860
[  319.635432]  ? print_usage_bug+0xc0/0xc0
[  319.639503]  ? print_usage_bug+0xc0/0xc0
[  319.643582]  ? down_read+0x8d/0x120
[  319.647210]  ? ext4_filemap_fault+0x7a/0xad
[  319.651534]  ? __down_interruptible+0x700/0x700
[  319.656230]  ext4_filemap_fault+0x82/0xad
[  319.660408]  __do_fault+0x100/0x6b0
[  319.664046]  ? find_held_lock+0x36/0x1c0
[  319.668116]  ? pmd_devmap_trans_unstable+0x220/0x220
[  319.673234]  ? mark_held_locks+0x130/0x130
[  319.677474]  ? mark_held_locks+0x130/0x130
[  319.681729]  ? kasan_check_read+0x11/0x20
[  319.685883]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.691437]  __handle_mm_fault+0x3ea0/0x5be0
[  319.695854]  ? perf_trace_lock+0x7a0/0x7a0
[  319.700101]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  319.704982]  ? __switch_to_asm+0x34/0x70
[  319.709048]  ? __switch_to_asm+0x34/0x70
[  319.713127]  ? zap_class+0x640/0x640
[  319.716842]  ? zap_class+0x640/0x640
[  319.720558]  ? __x64_sys_futex+0x53e/0x6a0
[  319.724894]  ? find_held_lock+0x36/0x1c0
[  319.729007]  ? handle_mm_fault+0x42a/0xc70
[  319.733251]  ? lock_downgrade+0x900/0x900
[  319.737402]  ? check_preemption_disabled+0x48/0x280
[  319.742425]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.747369]  ? kasan_check_read+0x11/0x20
[  319.751902]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.757192]  ? rcu_softirq_qs+0x20/0x20
[  319.761168]  ? trace_hardirqs_off_caller+0x310/0x310
[  319.766278]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.771821]  ? check_preemption_disabled+0x48/0x280
[  319.776849]  handle_mm_fault+0x54f/0xc70
[  319.780918]  ? __handle_mm_fault+0x5be0/0x5be0
[  319.785519]  ? find_vma+0x34/0x190
[  319.789083]  __do_page_fault+0x5e8/0xe60
[  319.793155]  ? trace_hardirqs_off+0xb8/0x310
[  319.797579]  do_page_fault+0xf2/0x7e0
[  319.801386]  ? vmalloc_sync_all+0x30/0x30
[  319.805538]  ? error_entry+0x70/0xd0
[  319.809259]  ? trace_hardirqs_off_caller+0xbb/0x310
[  319.814279]  ? trace_hardirqs_on_caller+0xc0/0x310
[  319.819218]  ? syscall_return_slowpath+0x5e0/0x5e0
[  319.824154]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  319.829012]  ? trace_hardirqs_on_caller+0x310/0x310
[  319.834041]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  319.839500]  ? prepare_exit_to_usermode+0x291/0x3b0
[  319.844522]  ? page_fault+0x8/0x30
[  319.848074]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  319.852921]  ? page_fault+0x8/0x30
[  319.856473]  page_fault+0x1e/0x30
[  319.859939] RIP: 0033:0x44b69a
[  319.863170] Code: Bad RIP value.
[  319.866533] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  319.871893] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  319.879181] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  319.886604] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  319.893872] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  319.901163] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  319.908466] warn_alloc_show_mem: 1 callbacks suppressed
[  319.908479] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  319.908481] Mem-Info:
[  319.908513] active_anon:47227 inactive_anon:190 isolated_anon:0
[  319.908513]  active_file:11 inactive_file:14 isolated_file:0
[  319.908513]  unevictable:0 dirty:0 writeback:0 unstable:0
[  319.908513]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  319.908513]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  319.908513]  free:13756 free_pcp:235 free_cma:0
[  319.913870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  319.921075] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  319.923481] Call Trace:
[  319.956367] 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
[  319.965731]  <IRQ>
[  319.993235] lowmem_reserve[]: 0 2818 6321 6321
[  319.995840]  dump_stack+0x244/0x39d
[  320.021996] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  320.024166]  ? dump_stack_print_info.cold.1+0x20/0x20
[  320.028712] lowmem_reserve[]: 0 0 3503 3503
[  320.032361]  warn_alloc.cold.116+0xb7/0x1bd
[  320.059673] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  320.064890]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  320.069182] lowmem_reserve[]: 0 0 0 0
[  320.073522]  ? lock_downgrade+0x900/0x900
[  320.102399] 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
[  320.107258]  ? trace_hardirqs_off+0xb8/0x310
[  320.111029] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  320.115184]  ? trace_hardirqs_off+0xb8/0x310
[  320.128682] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  320.133105]  __alloc_pages_slowpath+0x26e8/0x2e10
[  320.148351] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  320.152793]  ? warn_alloc+0x120/0x120
[  320.167845] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  320.172700]  ? print_usage_bug+0xc0/0xc0
[  320.181510] 269 total pagecache pages
[  320.185326]  ? warn_alloc+0x120/0x120
[  320.193881] 0 pages in swap cache
[  320.197956]  ? warn_alloc+0x120/0x120
[  320.201728] Swap cache stats: add 0, delete 0, find 0/0
[  320.205528]  ? print_usage_bug+0xc0/0xc0
[  320.208958] Free swap  = 0kB
[  320.212767]  ? kvm_clock_read+0x18/0x30
[  320.218112] Total swap = 0kB
[  320.222181]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  320.225167] 1965979 pages RAM
[  320.229148]  ? print_usage_bug+0xc0/0xc0
[  320.232138] 0 pages HighMem/MovableOnly
[  320.232147] 342853 pages reserved
[  320.237160]  ? __lock_acquire+0x62f/0x4c20
[  320.240284] 0 pages cma reserved
[  320.244346]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  320.248368] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  320.251740]  ? should_fail+0x22d/0xd01
[  320.256070] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  320.259324]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  320.264836] syz-fuzzer cpuset=/ mems_allowed=0
[  320.271328]  ? __lock_acquire+0x62f/0x4c20
[  320.299308]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  320.304423]  ? __lock_acquire+0x62f/0x4c20
[  320.308670]  ? should_fail+0x22d/0xd01
[  320.312600]  ? mark_held_locks+0x130/0x130
[  320.316847]  ? mark_held_locks+0x130/0x130
[  320.321096]  ? zap_class+0x640/0x640
[  320.324828]  ? print_usage_bug+0xc0/0xc0
[  320.328899]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.334450]  ? check_preemption_disabled+0x48/0x280
[  320.339486]  ? __lock_is_held+0xb5/0x140
[  320.343574]  __alloc_pages_nodemask+0xa80/0xde0
[  320.348253]  ? zap_class+0x640/0x640
[  320.351978]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  320.357016]  ? find_held_lock+0x36/0x1c0
[  320.361096]  ? ____cache_alloc_node+0x1c7/0x1e0
[  320.365774]  ? lock_downgrade+0x900/0x900
[  320.369947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.375502]  cache_grow_begin+0xa5/0x8c0
[  320.379576]  ? do_raw_spin_unlock+0xa7/0x330
[  320.384089]  fallback_alloc+0x204/0x2e0
[  320.388077]  ____cache_alloc_node+0x1c7/0x1e0
[  320.392587]  kmem_cache_alloc_node+0xe3/0x730
[  320.397091]  ? ipv6_get_ifaddr+0x42e/0x620
[  320.401345]  __alloc_skb+0x119/0x770
[  320.405064]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  320.410353]  ? netdev_alloc_frag+0x1f0/0x1f0
[  320.414769]  ? lock_downgrade+0x900/0x900
[  320.418947]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.424516]  ? refcount_sub_and_test_checked+0x203/0x310
[  320.430081]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  320.435559]  ? addrconf_rs_timer+0x690/0x690
[  320.440000]  ndisc_alloc_skb+0x144/0x340
[  320.444077]  ndisc_send_rs+0x331/0x6e0
[  320.447984]  addrconf_rs_timer+0x314/0x690
[  320.452232]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.456489]  call_timer_fn+0x272/0x920
[  320.460388]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.464634]  ? process_timeout+0x40/0x40
[  320.468710]  ? __run_timers+0x7da/0xc70
[  320.472698]  ? _raw_spin_unlock_irq+0x27/0x80
[  320.477197]  ? _raw_spin_unlock_irq+0x27/0x80
[  320.481708]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.485976]  ? lockdep_hardirqs_on+0x296/0x5b0
[  320.490595]  ? trace_hardirqs_on+0xbd/0x310
[  320.494927]  ? kasan_check_read+0x11/0x20
[  320.499104]  ? __run_timers+0x7da/0xc70
[  320.503093]  ? trace_hardirqs_off_caller+0x310/0x310
[  320.508219]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.512483]  __run_timers+0x7e5/0xc70
[  320.516307]  ? timer_fixup_init+0x70/0x70
[  320.520463]  ? lock_acquire+0x1ed/0x520
[  320.524459]  ? zap_class+0x640/0x640
[  320.528204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.533756]  ? kasan_check_read+0x11/0x20
[  320.537910]  ? do_raw_spin_lock+0x14f/0x350
[  320.542254]  ? find_held_lock+0x36/0x1c0
[  320.546327]  ? zap_class+0x640/0x640
[  320.550052]  ? pvclock_read_flags+0x160/0x160
[  320.554566]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.560120]  ? check_preemption_disabled+0x48/0x280
[  320.565157]  ? __lock_is_held+0xb5/0x140
[  320.569239]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.574799]  ? check_preemption_disabled+0x48/0x280
[  320.579830]  run_timer_softirq+0x52/0xb0
[  320.583905]  ? rcu_read_lock_sched_held+0x14f/0x180
[  320.588959]  __do_softirq+0x308/0xb7e
[  320.592791]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  320.597301]  ? lock_downgrade+0x900/0x900
[  320.601469]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  320.606594]  ? pvclock_read_flags+0x160/0x160
[  320.611105]  ? lapic_next_event+0x5a/0x90
[  320.615266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.620825]  ? kvm_clock_read+0x18/0x30
[  320.624813]  ? kvm_sched_clock_read+0x9/0x20
[  320.629378]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.634950]  ? check_preemption_disabled+0x48/0x280
[  320.640015]  irq_exit+0x17f/0x1c0
[  320.643492]  smp_apic_timer_interrupt+0x1cb/0x760
[  320.648356]  ? smp_call_function_single_interrupt+0x159/0x650
[  320.654258]  ? smp_call_function_single_interrupt+0x650/0x650
[  320.660162]  ? interrupt_entry+0xb5/0xc0
[  320.664246]  ? trace_hardirqs_off_caller+0xbb/0x310
[  320.669274]  ? trace_hardirqs_off_caller+0xbb/0x310
[  320.674309]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  320.679183]  ? trace_hardirqs_on_caller+0x310/0x310
[  320.684213]  ? trace_hardirqs_on_caller+0x310/0x310
[  320.689257]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  320.694120]  apic_timer_interrupt+0xf/0x20
[  320.698354]  </IRQ>
[  320.700608] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  320.705561] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  320.724486] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  320.732219] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  320.739507] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  320.746795] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  320.754419] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  320.761709] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  320.769045]  skb_clone+0x1bb/0x500
[  320.772602]  ? skb_split+0x11e0/0x11e0
[  320.776498]  ? check_preemption_disabled+0x48/0x280
[  320.781530]  ? __this_cpu_preempt_check+0x1c/0x20
[  320.786395]  ? __bpf_redirect+0x54b/0xb20
[  320.790564]  bpf_clone_redirect+0xb9/0x490
[  320.794815]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  320.799862]  ? __sched_text_start+0x8/0x8
[  320.804033]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  320.808810]  ? find_held_lock+0x36/0x1c0
[  320.812901]  ? lock_acquire+0x1ed/0x520
[  320.816889]  ? bpf_test_run+0x3cb/0x780
[  320.820870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.826433]  ? check_preemption_disabled+0x48/0x280
[  320.831467]  ? kasan_check_read+0x11/0x20
[  320.835631]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  320.840919]  ? rcu_softirq_qs+0x20/0x20
[  320.844907]  ? preempt_schedule+0x4d/0x60
[  320.849072]  ? ___preempt_schedule+0x16/0x18
[  320.853497]  ? bpf_test_run+0x25d/0x780
[  320.857490]  ? netlink_diag_dump+0x2a0/0x2a0
[  320.861914]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  320.866692]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  320.871473]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  320.876332]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  320.881879]  ? fput+0x130/0x1a0
[  320.885176]  ? __bpf_prog_get+0x9b/0x290
[  320.889259]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  320.894113]  ? bpf_prog_test_run+0x130/0x1a0
[  320.898532]  ? __x64_sys_bpf+0x3d8/0x520
[  320.902608]  ? bpf_prog_get+0x20/0x20
[  320.906436]  ? do_syscall_64+0x1b9/0x820
[  320.910504]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  320.915882]  ? syscall_return_slowpath+0x5e0/0x5e0
[  320.920817]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  320.925666]  ? trace_hardirqs_on_caller+0x310/0x310
[  320.930687]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  320.935707]  ? prepare_exit_to_usermode+0x291/0x3b0
[  320.940733]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  320.945604]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  320.950992] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  320.951081] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  320.957965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  320.957970] Call Trace:
[  320.957979]  <IRQ>
[  320.958000]  dump_stack+0x244/0x39d
[  320.958016]  ? dump_stack_print_info.cold.1+0x20/0x20
[  320.958049]  warn_alloc.cold.116+0xb7/0x1bd
[  320.958067]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  320.964671] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  320.973913]  ? lock_downgrade+0x900/0x900
[  320.976475] syz-executor4 cpuset=syz4 mems_allowed=0
[  320.978627]  ? trace_hardirqs_off+0xb8/0x310
[  321.021272]  ? trace_hardirqs_off+0xb8/0x310
[  321.025695]  __alloc_pages_slowpath+0x26e8/0x2e10
[  321.030569]  ? warn_alloc+0x120/0x120
[  321.034381]  ? print_usage_bug+0xc0/0xc0
[  321.038443]  ? warn_alloc+0x120/0x120
[  321.042249]  ? warn_alloc+0x120/0x120
[  321.046061]  ? print_usage_bug+0xc0/0xc0
[  321.050127]  ? kvm_clock_read+0x18/0x30
[  321.054108]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  321.059130]  ? print_usage_bug+0xc0/0xc0
[  321.063193]  ? __lock_acquire+0x62f/0x4c20
[  321.067460]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.073003]  ? should_fail+0x22d/0xd01
[  321.076896]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.082185]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  321.087294]  ? __lock_acquire+0x62f/0x4c20
[  321.091539]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  321.096652]  ? __lock_acquire+0x62f/0x4c20
[  321.100903]  ? should_fail+0x22d/0xd01
[  321.104795]  ? rcu_irq_exit+0x1a2/0x390
[  321.108787]  ? mark_held_locks+0x130/0x130
[  321.113043]  ? mark_held_locks+0x130/0x130
[  321.117286]  ? mark_held_locks+0xc7/0x130
[  321.121440]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  321.126464]  ? zap_class+0x640/0x640
[  321.130184]  ? print_usage_bug+0xc0/0xc0
[  321.134256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.139801]  ? check_preemption_disabled+0x48/0x280
[  321.144858]  ? __lock_is_held+0xb5/0x140
[  321.148941]  __alloc_pages_nodemask+0xa80/0xde0
[  321.153617]  ? zap_class+0x640/0x640
[  321.157341]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  321.162387]  ? find_held_lock+0x36/0x1c0
[  321.166479]  ? ____cache_alloc_node+0x1c7/0x1e0
[  321.171162]  ? lock_downgrade+0x900/0x900
[  321.175323]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.180880]  cache_grow_begin+0xa5/0x8c0
[  321.184958]  ? do_raw_spin_unlock+0xa7/0x330
[  321.189386]  fallback_alloc+0x204/0x2e0
[  321.193376]  ____cache_alloc_node+0x1c7/0x1e0
[  321.197884]  kmem_cache_alloc_node+0xe3/0x730
[  321.202388]  ? ipv6_get_ifaddr+0x42e/0x620
[  321.206637]  __alloc_skb+0x119/0x770
[  321.210376]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.215660]  ? netdev_alloc_frag+0x1f0/0x1f0
[  321.220079]  ? lock_downgrade+0x900/0x900
[  321.224238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.229784]  ? refcount_sub_and_test_checked+0x203/0x310
[  321.235249]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  321.240707]  ? addrconf_rs_timer+0x690/0x690
[  321.245132]  ndisc_alloc_skb+0x144/0x340
[  321.249216]  ndisc_send_rs+0x331/0x6e0
[  321.253114]  addrconf_rs_timer+0x314/0x690
[  321.257359]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  321.261613]  call_timer_fn+0x272/0x920
[  321.265535]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  321.269777]  ? process_timeout+0x40/0x40
[  321.273886]  ? mark_held_locks+0xc7/0x130
[  321.278070]  ? _raw_spin_unlock_irq+0x27/0x80
[  321.282569]  ? _raw_spin_unlock_irq+0x27/0x80
[  321.287082]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  321.291322]  ? lockdep_hardirqs_on+0x296/0x5b0
[  321.295911]  ? trace_hardirqs_on+0xbd/0x310
[  321.300259]  ? kasan_check_read+0x11/0x20
[  321.304413]  ? __run_timers+0x7da/0xc70
[  321.308400]  ? trace_hardirqs_off_caller+0x310/0x310
[  321.313526]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  321.317774]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  321.322017]  __run_timers+0x7e5/0xc70
[  321.325834]  ? timer_fixup_init+0x70/0x70
[  321.330016]  ? kasan_check_read+0x11/0x20
[  321.334172]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.339463]  ? rcu_softirq_qs+0x20/0x20
[  321.343449]  ? mark_held_locks+0xc7/0x130
[  321.347606]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  321.352375]  ? retint_kernel+0x2d/0x2d
[  321.356268]  ? trace_hardirqs_on_caller+0xc0/0x310
[  321.361206]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  321.365977]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  321.371437]  ? zap_class+0x640/0x640
[  321.375161]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.380724]  ? check_preemption_disabled+0x48/0x280
[  321.385756]  ? __lock_is_held+0xb5/0x140
[  321.389824]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.395367]  ? check_preemption_disabled+0x48/0x280
[  321.400398]  run_timer_softirq+0x52/0xb0
[  321.404463]  ? rcu_read_lock_sched_held+0x14f/0x180
[  321.409486]  __do_softirq+0x308/0xb7e
[  321.413295]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  321.417810]  ? lock_downgrade+0x900/0x900
[  321.421976]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  321.427113]  ? pvclock_read_flags+0x160/0x160
[  321.431634]  ? lapic_next_event+0x5a/0x90
[  321.435794]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.441346]  ? kvm_clock_read+0x18/0x30
[  321.445322]  ? kvm_sched_clock_read+0x9/0x20
[  321.449735]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.455288]  ? check_preemption_disabled+0x48/0x280
[  321.460320]  irq_exit+0x17f/0x1c0
[  321.463779]  smp_apic_timer_interrupt+0x1cb/0x760
[  321.468631]  ? smp_call_function_single_interrupt+0x650/0x650
[  321.474523]  ? interrupt_entry+0xb5/0xc0
[  321.478593]  ? trace_hardirqs_off_caller+0xbb/0x310
[  321.483611]  ? trace_hardirqs_off_caller+0xbb/0x310
[  321.488636]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  321.493504]  ? trace_hardirqs_on_caller+0x310/0x310
[  321.498523]  ? trace_hardirqs_on_caller+0x310/0x310
[  321.503549]  ? task_prio+0x50/0x50
[  321.507110]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.512657]  ? check_preemption_disabled+0x48/0x280
[  321.517686]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  321.522543]  apic_timer_interrupt+0xf/0x20
[  321.526775]  </IRQ>
[  321.529023] RIP: 0010:dump_stack+0x358/0x39d
[  321.533456] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  321.552374] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  321.560099] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  321.567376] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  321.574650] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  321.581921] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  321.589212] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  321.596522]  ? dump_stack+0x34f/0x39d
[  321.600355]  ? dump_stack_print_info.cold.1+0x20/0x20
[  321.605553]  ? mark_held_locks+0x130/0x130
[  321.609797]  ? mark_held_locks+0x130/0x130
[  321.614049]  dump_header+0x27b/0xf72
[  321.617779]  ? pagefault_out_of_memory+0x197/0x197
[  321.622725]  ? __lock_acquire+0x62f/0x4c20
[  321.626974]  ? percpu_ref_get_many+0x240/0x240
[  321.631567]  ? print_usage_bug+0xc0/0xc0
[  321.635642]  ? zap_class+0x640/0x640
[  321.639363]  ? print_usage_bug+0xc0/0xc0
[  321.643427]  ? print_usage_bug+0xc0/0xc0
[  321.647492]  ? zap_class+0x640/0x640
[  321.651214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.656763]  ? find_held_lock+0x36/0x1c0
[  321.660839]  ? mark_held_locks+0xc7/0x130
[  321.664995]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  321.670108]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  321.675222]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  321.679815]  ? trace_hardirqs_on+0xbd/0x310
[  321.684144]  ? kasan_check_read+0x11/0x20
[  321.688300]  ? ___ratelimit+0x3b4/0x672
[  321.692281]  ? trace_hardirqs_off_caller+0x310/0x310
[  321.697390]  ? trace_hardirqs_on+0x310/0x310
[  321.701806]  ? lock_downgrade+0x900/0x900
[  321.705983]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  321.711111]  ? ___ratelimit+0x3b9/0x672
[  321.715094]  ? idr_get_free+0xf70/0xf70
[  321.719075]  ? find_held_lock+0x36/0x1c0
[  321.723149]  oom_kill_process.cold.27+0x10/0x903
[  321.727912]  ? zap_class+0x640/0x640
[  321.731638]  ? check_preemption_disabled+0x48/0x280
[  321.736676]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.741628]  ? kasan_check_read+0x11/0x20
[  321.745799]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.751090]  ? oom_evaluate_task+0x540/0x540
[  321.755508]  ? find_held_lock+0x36/0x1c0
[  321.759586]  ? out_of_memory+0x974/0x1430
[  321.763746]  ? lock_downgrade+0x900/0x900
[  321.767903]  ? check_preemption_disabled+0x48/0x280
[  321.772957]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.777892]  ? kasan_check_read+0x11/0x20
[  321.782066]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.787364]  ? rcu_softirq_qs+0x20/0x20
[  321.791354]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.796898]  ? oom_evaluate_task+0x302/0x540
[  321.801318]  out_of_memory+0xa84/0x1430
[  321.805318]  ? oom_killer_disable+0x3a0/0x3a0
[  321.809819]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  321.814760]  ? __ww_mutex_check_waiters+0x160/0x160
[  321.819809]  __alloc_pages_slowpath+0x2354/0x2e10
[  321.824683]  ? warn_alloc+0x120/0x120
[  321.828489]  ? mark_held_locks+0x130/0x130
[  321.832735]  ? find_get_entry+0xaae/0x1120
[  321.836994]  ? filemap_map_pages+0x1a20/0x1a20
[  321.841584]  ? zap_class+0x640/0x640
[  321.845314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.850858]  ? check_preemption_disabled+0x48/0x280
[  321.855880]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.861437]  ? should_fail+0x22d/0xd01
[  321.865335]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  321.870447]  ? zap_class+0x640/0x640
[  321.874197]  ? __lock_is_held+0xb5/0x140
[  321.878269]  ? mark_held_locks+0x130/0x130
[  321.882706]  ? lock_release+0xa00/0xa00
[  321.886702]  ? perf_trace_sched_process_exec+0x860/0x860
[  321.892181]  ? xa_load+0x2ba/0x460
[  321.895735]  ? lock_downgrade+0x900/0x900
[  321.899895]  ? __might_sleep+0x95/0x190
[  321.903882]  __alloc_pages_nodemask+0xa80/0xde0
[  321.908565]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  321.913587]  ? __page_cache_alloc+0x191/0x5c0
[  321.918096]  ? xa_load+0x2e1/0x460
[  321.921646]  ? xa_clear_mark+0x40/0x40
[  321.925543]  ? zap_class+0x640/0x640
[  321.929267]  ? zap_class+0x640/0x640
[  321.932986]  ? zap_class+0x640/0x640
[  321.936706]  ? __do_page_cache_readahead+0x663/0x810
[  321.941821]  ? find_held_lock+0x36/0x1c0
[  321.945898]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  321.951450]  alloc_pages_current+0x173/0x350
[  321.955872]  __page_cache_alloc+0x38c/0x5c0
[  321.960197]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.965135]  ? kasan_check_read+0x11/0x20
[  321.969297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.974583]  ? generic_perform_write+0x6a0/0x6a0
[  321.979345]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.984896]  ? check_preemption_disabled+0x48/0x280
[  321.989930]  filemap_fault+0x1595/0x25f0
[  321.994018]  ? __lock_page_or_retry+0xa00/0xa00
[  321.998702]  ? mark_held_locks+0x130/0x130
[  322.002958]  ? filemap_map_pages+0xd6b/0x1a20
[  322.007460]  ? lock_downgrade+0x900/0x900
[  322.011617]  ? check_preemption_disabled+0x48/0x280
[  322.016642]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  322.021579]  ? kasan_check_read+0x11/0x20
[  322.025737]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  322.031024]  ? rcu_softirq_qs+0x20/0x20
[  322.035024]  ? filemap_map_pages+0xd92/0x1a20
[  322.039547]  ? find_get_entries_tag+0x1400/0x1400
[  322.044451]  ? find_held_lock+0x36/0x1c0
[  322.048540]  ? lock_acquire+0x1ed/0x520
[  322.052520]  ? ext4_filemap_fault+0x7a/0xad
[  322.056853]  ? lock_release+0xa00/0xa00
[  322.060831]  ? perf_trace_sched_process_exec+0x860/0x860
[  322.066290]  ? print_usage_bug+0xc0/0xc0
[  322.070356]  ? print_usage_bug+0xc0/0xc0
[  322.074434]  ? down_read+0x8d/0x120
[  322.078075]  ? ext4_filemap_fault+0x7a/0xad
[  322.082415]  ? __down_interruptible+0x700/0x700
[  322.087101]  ext4_filemap_fault+0x82/0xad
[  322.091256]  __do_fault+0x100/0x6b0
[  322.094889]  ? find_held_lock+0x36/0x1c0
[  322.098966]  ? pmd_devmap_trans_unstable+0x220/0x220
[  322.104091]  ? mark_held_locks+0x130/0x130
[  322.108330]  ? mark_held_locks+0x130/0x130
[  322.112580]  ? kasan_check_read+0x11/0x20
[  322.116735]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  322.122287]  __handle_mm_fault+0x3ea0/0x5be0
[  322.126703]  ? perf_trace_lock+0x7a0/0x7a0
[  322.130959]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  322.135819]  ? __switch_to_asm+0x34/0x70
[  322.139883]  ? __switch_to_asm+0x34/0x70
[  322.143973]  ? zap_class+0x640/0x640
[  322.147723]  ? zap_class+0x640/0x640
[  322.151449]  ? __x64_sys_futex+0x53e/0x6a0
[  322.155696]  ? find_held_lock+0x36/0x1c0
[  322.159775]  ? handle_mm_fault+0x42a/0xc70
[  322.164043]  ? lock_downgrade+0x900/0x900
[  322.168210]  ? check_preemption_disabled+0x48/0x280
[  322.173260]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  322.178207]  ? kasan_check_read+0x11/0x20
[  322.182367]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  322.187666]  ? rcu_softirq_qs+0x20/0x20
[  322.191665]  ? trace_hardirqs_off_caller+0x310/0x310
[  322.196778]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  322.202332]  ? check_preemption_disabled+0x48/0x280
[  322.207367]  handle_mm_fault+0x54f/0xc70
[  322.211440]  ? __handle_mm_fault+0x5be0/0x5be0
[  322.216034]  ? find_vma+0x34/0x190
[  322.219591]  __do_page_fault+0x5e8/0xe60
[  322.223660]  ? trace_hardirqs_off+0xb8/0x310
[  322.228088]  do_page_fault+0xf2/0x7e0
[  322.231896]  ? vmalloc_sync_all+0x30/0x30
[  322.236056]  ? error_entry+0x70/0xd0
[  322.239776]  ? trace_hardirqs_off_caller+0xbb/0x310
[  322.244792]  ? trace_hardirqs_on_caller+0xc0/0x310
[  322.249725]  ? syscall_return_slowpath+0x5e0/0x5e0
[  322.254658]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  322.259510]  ? trace_hardirqs_on_caller+0x310/0x310
[  322.264530]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  322.269997]  ? prepare_exit_to_usermode+0x291/0x3b0
[  322.275021]  ? page_fault+0x8/0x30
[  322.278571]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  322.283434]  ? page_fault+0x8/0x30
[  322.286987]  page_fault+0x1e/0x30
[  322.290441] RIP: 0033:0x44b69a
[  322.293651] Code: Bad RIP value.
[  322.297017] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  322.302384] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  322.309654] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  322.316944] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  322.324230] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  322.331508] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  322.338818] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  322.338824] warn_alloc_show_mem: 1 callbacks suppressed
[  322.338832] Mem-Info:
[  322.346050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  322.351435] active_anon:47227 inactive_anon:190 isolated_anon:0
[  322.351435]  active_file:11 inactive_file:14 isolated_file:0
[  322.351435]  unevictable:0 dirty:0 writeback:0 unstable:0
[  322.351435]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  322.351435]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  322.351435]  free:13756 free_pcp:235 free_cma:0
[  322.353806] Call Trace:
[  322.363208] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  322.396081]  <IRQ>
[  322.398663] 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
[  322.426183]  dump_stack+0x244/0x39d
[  322.428312] lowmem_reserve[]: 0 2818 6321 6321
[  322.454449]  ? dump_stack_print_info.cold.1+0x20/0x20
[  322.458059] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  322.462656]  warn_alloc.cold.116+0xb7/0x1bd
[  322.467813] lowmem_reserve[]: 0 0 3503 3503
[  322.495169]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  322.499473] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  322.503805]  ? lock_downgrade+0x900/0x900
[  322.508616] lowmem_reserve[]: 0 0 0 0
[  322.537527]  ? trace_hardirqs_off+0xb8/0x310
[  322.541653] 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
[  322.545470]  ? trace_hardirqs_off+0xb8/0x310
[  322.549840] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  322.563381]  __alloc_pages_slowpath+0x26e8/0x2e10
[  322.567767] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  322.583075]  ? warn_alloc+0x120/0x120
[  322.587890] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  322.603092]  ? print_usage_bug+0xc0/0xc0
[  322.606885] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  322.615740]  ? warn_alloc+0x120/0x120
[  322.619782] 269 total pagecache pages
[  322.628368]  ? warn_alloc+0x120/0x120
[  322.632154] 0 pages in swap cache
[  322.636111]  ? print_usage_bug+0xc0/0xc0
[  322.639887] Swap cache stats: add 0, delete 0, find 0/0
[  322.643345]  ? kvm_clock_read+0x18/0x30
[  322.647378] Free swap  = 0kB
[  322.652748]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  322.656691] Total swap = 0kB
[  322.659712]  ? print_usage_bug+0xc0/0xc0
[  322.665205] 1965979 pages RAM
[  322.668230]  ? __lock_acquire+0x62f/0x4c20
[  322.672264] 0 pages HighMem/MovableOnly
[  322.675379]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  322.679575] 342853 pages reserved
[  322.679580] 0 pages cma reserved
[  322.679694] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  322.683622]  ? should_fail+0x22d/0xd01
[  322.683637]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  322.683655]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  322.689307] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  322.692625]  ? __lock_acquire+0x62f/0x4c20
[  322.692647]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  322.696186] syz-fuzzer cpuset=/ mems_allowed=0
[  322.702677]  ? __lock_acquire+0x62f/0x4c20
[  322.702696]  ? should_fail+0x22d/0xd01
[  322.749856]  ? rcu_irq_exit+0x1a2/0x390
[  322.753861]  ? mark_held_locks+0x130/0x130
[  322.758129]  ? mark_held_locks+0x130/0x130
[  322.762381]  ? mark_held_locks+0xc7/0x130
[  322.766545]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  322.771581]  ? zap_class+0x640/0x640
[  322.775331]  ? print_usage_bug+0xc0/0xc0
[  322.779420]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.784981]  ? check_preemption_disabled+0x48/0x280
[  322.790024]  ? __lock_is_held+0xb5/0x140
[  322.794104]  __alloc_pages_nodemask+0xa80/0xde0
[  322.798786]  ? zap_class+0x640/0x640
[  322.802525]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  322.807573]  ? find_held_lock+0x36/0x1c0
[  322.811656]  ? ____cache_alloc_node+0x1c7/0x1e0
[  322.816340]  ? lock_downgrade+0x900/0x900
[  322.820510]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.826078]  cache_grow_begin+0xa5/0x8c0
[  322.830161]  ? do_raw_spin_unlock+0xa7/0x330
[  322.834589]  fallback_alloc+0x204/0x2e0
[  322.838584]  ____cache_alloc_node+0x1c7/0x1e0
[  322.843095]  kmem_cache_alloc_node+0xe3/0x730
[  322.847601]  ? ipv6_get_ifaddr+0x42e/0x620
[  322.851860]  __alloc_skb+0x119/0x770
[  322.855587]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  322.860890]  ? netdev_alloc_frag+0x1f0/0x1f0
[  322.865314]  ? lock_downgrade+0x900/0x900
[  322.869485]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.875038]  ? refcount_sub_and_test_checked+0x203/0x310
[  322.880510]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  322.885999]  ? addrconf_rs_timer+0x690/0x690
[  322.890430]  ndisc_alloc_skb+0x144/0x340
[  322.894504]  ndisc_send_rs+0x331/0x6e0
[  322.898411]  addrconf_rs_timer+0x314/0x690
[  322.902659]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.907201]  call_timer_fn+0x272/0x920
[  322.911111]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.915354]  ? process_timeout+0x40/0x40
[  322.919438]  ? __run_timers+0x7da/0xc70
[  322.923427]  ? _raw_spin_unlock_irq+0x27/0x80
[  322.927945]  ? _raw_spin_unlock_irq+0x27/0x80
[  322.932448]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.936691]  ? lockdep_hardirqs_on+0x296/0x5b0
[  322.941283]  ? trace_hardirqs_on+0xbd/0x310
[  322.945616]  ? kasan_check_read+0x11/0x20
[  322.949773]  ? __run_timers+0x7da/0xc70
[  322.953865]  ? trace_hardirqs_off_caller+0x310/0x310
[  322.959056]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.963309]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.967562]  __run_timers+0x7e5/0xc70
[  322.971386]  ? timer_fixup_init+0x70/0x70
[  322.975549]  ? lock_acquire+0x1ed/0x520
[  322.979539]  ? zap_class+0x640/0x640
[  322.983277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.988830]  ? kasan_check_read+0x11/0x20
[  322.992991]  ? do_raw_spin_lock+0x14f/0x350
[  322.997333]  ? find_held_lock+0x36/0x1c0
[  323.001404]  ? zap_class+0x640/0x640
[  323.005148]  ? pvclock_read_flags+0x160/0x160
[  323.009654]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.015213]  ? check_preemption_disabled+0x48/0x280
[  323.020253]  ? __lock_is_held+0xb5/0x140
[  323.024331]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.029884]  ? check_preemption_disabled+0x48/0x280
[  323.034941]  run_timer_softirq+0x52/0xb0
[  323.039029]  ? rcu_read_lock_sched_held+0x14f/0x180
[  323.044063]  __do_softirq+0x308/0xb7e
[  323.047875]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  323.052375]  ? lock_downgrade+0x900/0x900
[  323.056575]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  323.061702]  ? pvclock_read_flags+0x160/0x160
[  323.066207]  ? lapic_next_event+0x5a/0x90
[  323.070367]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.075923]  ? kvm_clock_read+0x18/0x30
[  323.079913]  ? kvm_sched_clock_read+0x9/0x20
[  323.084344]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.089893]  ? check_preemption_disabled+0x48/0x280
[  323.094948]  irq_exit+0x17f/0x1c0
[  323.098426]  smp_apic_timer_interrupt+0x1cb/0x760
[  323.103277]  ? smp_call_function_single_interrupt+0x159/0x650
[  323.109186]  ? smp_call_function_single_interrupt+0x650/0x650
[  323.115080]  ? interrupt_entry+0xb5/0xc0
[  323.119164]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.124187]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.129214]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.134070]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.139092]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.144130]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.148991]  apic_timer_interrupt+0xf/0x20
[  323.153230]  </IRQ>
[  323.155482] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  323.160423] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  323.179345] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  323.187081] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  323.194370] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  323.201656] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  323.208950] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  323.216237] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  323.223575]  skb_clone+0x1bb/0x500
[  323.227138]  ? skb_split+0x11e0/0x11e0
[  323.231038]  ? check_preemption_disabled+0x48/0x280
[  323.236077]  ? __this_cpu_preempt_check+0x1c/0x20
[  323.240947]  ? __bpf_redirect+0x54b/0xb20
[  323.245120]  bpf_clone_redirect+0xb9/0x490
[  323.249393]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  323.254441]  ? __sched_text_start+0x8/0x8
[  323.258607]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  323.263393]  ? find_held_lock+0x36/0x1c0
[  323.267478]  ? lock_acquire+0x1ed/0x520
[  323.271469]  ? bpf_test_run+0x3cb/0x780
[  323.275456]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.281011]  ? check_preemption_disabled+0x48/0x280
[  323.286056]  ? kasan_check_read+0x11/0x20
[  323.290238]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.295552]  ? rcu_softirq_qs+0x20/0x20
[  323.299569]  ? preempt_schedule+0x4d/0x60
[  323.303729]  ? ___preempt_schedule+0x16/0x18
[  323.308160]  ? bpf_test_run+0x25d/0x780
[  323.312174]  ? netlink_diag_dump+0x2a0/0x2a0
[  323.316598]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  323.321371]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  323.326148]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  323.331002]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  323.336557]  ? fput+0x130/0x1a0
[  323.339853]  ? __bpf_prog_get+0x9b/0x290
[  323.343927]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  323.348792]  ? bpf_prog_test_run+0x130/0x1a0
[  323.353216]  ? __x64_sys_bpf+0x3d8/0x520
[  323.357292]  ? bpf_prog_get+0x20/0x20
[  323.361126]  ? do_syscall_64+0x1b9/0x820
[  323.365205]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  323.370592]  ? syscall_return_slowpath+0x5e0/0x5e0
[  323.375533]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.380420]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.385452]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  323.390481]  ? prepare_exit_to_usermode+0x291/0x3b0
[  323.395517]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.400379]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  323.405771] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  323.405871] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  323.412724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  323.412730] Call Trace:
[  323.412737]  <IRQ>
[  323.412760]  dump_stack+0x244/0x39d
[  323.412776]  ? dump_stack_print_info.cold.1+0x20/0x20
[  323.412803]  warn_alloc.cold.116+0xb7/0x1bd
[  323.412820]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  323.419389] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  323.428673]  ? lock_downgrade+0x900/0x900
[  323.431236] syz-executor4 cpuset=syz4 mems_allowed=0
[  323.433404]  ? trace_hardirqs_off+0xb8/0x310
[  323.475450]  ? trace_hardirqs_off+0xb8/0x310
[  323.479876]  __alloc_pages_slowpath+0x26e8/0x2e10
[  323.484757]  ? warn_alloc+0x120/0x120
[  323.488569]  ? warn_alloc+0x120/0x120
[  323.492416]  ? __bfs+0x321/0x780
[  323.495810]  ? print_usage_bug+0xc0/0xc0
[  323.499889]  ? lockdep_on+0x50/0x50
[  323.503524]  ? print_bfs_bug+0x80/0x80
[  323.507422]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.512721]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.518272]  ? should_fail+0x22d/0xd01
[  323.522172]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  323.527283]  ? __lock_acquire+0x62f/0x4c20
[  323.531527]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  323.536643]  ? __lock_acquire+0x2aff/0x4c20
[  323.540977]  ? should_fail+0x22d/0xd01
[  323.544884]  ? mark_held_locks+0x130/0x130
[  323.549131]  ? mark_held_locks+0x130/0x130
[  323.553369]  ? save_trace+0xe0/0x290
[  323.557100]  ? kasan_check_read+0x11/0x20
[  323.561254]  ? __lock_acquire+0x2aff/0x4c20
[  323.565583]  ? zap_class+0x640/0x640
[  323.569312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.574865]  ? check_preemption_disabled+0x48/0x280
[  323.579902]  ? __lock_is_held+0xb5/0x140
[  323.583991]  __alloc_pages_nodemask+0xa80/0xde0
[  323.588668]  ? zap_class+0x640/0x640
[  323.592393]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  323.597430]  ? find_held_lock+0x36/0x1c0
[  323.601510]  ? ____cache_alloc_node+0x1c7/0x1e0
[  323.606206]  ? lock_downgrade+0x900/0x900
[  323.610375]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.615941]  cache_grow_begin+0xa5/0x8c0
[  323.620012]  ? do_raw_spin_unlock+0xa7/0x330
[  323.624440]  fallback_alloc+0x204/0x2e0
[  323.628431]  ____cache_alloc_node+0x1c7/0x1e0
[  323.632953]  kmem_cache_alloc_node+0xe3/0x730
[  323.637456]  ? do_raw_spin_unlock+0xa7/0x330
[  323.641880]  ? do_raw_spin_trylock+0x270/0x270
[  323.646484]  __alloc_skb+0x119/0x770
[  323.650210]  ? netdev_alloc_frag+0x1f0/0x1f0
[  323.654623]  ? atomic_notifier_call_chain+0xc6/0x190
[  323.659741]  ? lock_downgrade+0x900/0x900
[  323.663897]  ? check_preemption_disabled+0x48/0x280
[  323.668926]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  323.673879]  ? kasan_check_read+0x11/0x20
[  323.678034]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.683324]  ? rcu_softirq_qs+0x20/0x20
[  323.687304]  ? kasan_check_read+0x11/0x20
[  323.691461]  ? do_raw_write_trylock+0x270/0x270
[  323.696151]  __neigh_notify+0x8c/0x160
[  323.700056]  ? neigh_connected_output+0x780/0x780
[  323.704909]  neigh_timer_handler+0x6cb/0xdf0
[  323.709334]  ? check_preemption_disabled+0x48/0x280
[  323.714358]  ? neigh_periodic_work+0xc60/0xc60
[  323.718958]  ? __lock_is_held+0xb5/0x140
[  323.723058]  call_timer_fn+0x272/0x920
[  323.726958]  ? neigh_periodic_work+0xc60/0xc60
[  323.731547]  ? process_timeout+0x40/0x40
[  323.735632]  ? mark_held_locks+0xc7/0x130
[  323.739790]  ? _raw_spin_unlock_irq+0x27/0x80
[  323.744296]  ? _raw_spin_unlock_irq+0x27/0x80
[  323.748796]  ? neigh_periodic_work+0xc60/0xc60
[  323.753740]  ? lockdep_hardirqs_on+0x296/0x5b0
[  323.758335]  ? trace_hardirqs_on+0xbd/0x310
[  323.762663]  ? kasan_check_read+0x11/0x20
[  323.766811]  ? __run_timers+0x7da/0xc70
[  323.770801]  ? trace_hardirqs_off_caller+0x310/0x310
[  323.775943]  ? neigh_periodic_work+0xc60/0xc60
[  323.780537]  __run_timers+0x7e5/0xc70
[  323.784357]  ? timer_fixup_init+0x70/0x70
[  323.788513]  ? kasan_check_read+0x11/0x20
[  323.792697]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.797980]  ? rcu_softirq_qs+0x20/0x20
[  323.801980]  ? mark_held_locks+0xc7/0x130
[  323.806141]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  323.810904]  ? retint_kernel+0x2d/0x2d
[  323.814807]  ? trace_hardirqs_on_caller+0xc0/0x310
[  323.819745]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  323.824510]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  323.829977]  ? zap_class+0x640/0x640
[  323.833707]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.839258]  ? check_preemption_disabled+0x48/0x280
[  323.844297]  ? __lock_is_held+0xb5/0x140
[  323.848380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.853928]  ? check_preemption_disabled+0x48/0x280
[  323.858997]  run_timer_softirq+0x52/0xb0
[  323.863091]  ? rcu_read_lock_sched_held+0x14f/0x180
[  323.868130]  __do_softirq+0x308/0xb7e
[  323.871949]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  323.876448]  ? lock_downgrade+0x900/0x900
[  323.880606]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  323.885857]  ? pvclock_read_flags+0x160/0x160
[  323.890362]  ? lapic_next_event+0x5a/0x90
[  323.894534]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.900081]  ? kvm_clock_read+0x18/0x30
[  323.904075]  ? kvm_sched_clock_read+0x9/0x20
[  323.908493]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.914042]  ? check_preemption_disabled+0x48/0x280
[  323.919080]  irq_exit+0x17f/0x1c0
[  323.922547]  smp_apic_timer_interrupt+0x1cb/0x760
[  323.927414]  ? smp_call_function_single_interrupt+0x650/0x650
[  323.933306]  ? interrupt_entry+0xb5/0xc0
[  323.937379]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.942402]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.947429]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.952281]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.957302]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.962324]  ? task_prio+0x50/0x50
[  323.965869]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.971437]  ? check_preemption_disabled+0x48/0x280
[  323.976466]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.981326]  apic_timer_interrupt+0xf/0x20
[  323.985558]  </IRQ>
[  323.987800] RIP: 0010:dump_stack+0x358/0x39d
[  323.992212] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  324.011133] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  324.018851] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  324.026129] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  324.033403] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  324.040677] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  324.047968] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  324.055275]  ? dump_stack+0x34f/0x39d
[  324.059106]  ? dump_stack_print_info.cold.1+0x20/0x20
[  324.064307]  ? mark_held_locks+0x130/0x130
[  324.068548]  ? mark_held_locks+0x130/0x130
[  324.072802]  dump_header+0x27b/0xf72
[  324.076535]  ? pagefault_out_of_memory+0x197/0x197
[  324.081478]  ? __lock_acquire+0x62f/0x4c20
[  324.085718]  ? percpu_ref_get_many+0x240/0x240
[  324.090321]  ? print_usage_bug+0xc0/0xc0
[  324.094389]  ? zap_class+0x640/0x640
[  324.098109]  ? print_usage_bug+0xc0/0xc0
[  324.102171]  ? print_usage_bug+0xc0/0xc0
[  324.106239]  ? zap_class+0x640/0x640
[  324.109968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  324.115536]  ? find_held_lock+0x36/0x1c0
[  324.119633]  ? mark_held_locks+0xc7/0x130
[  324.123793]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  324.128900]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  324.134018]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  324.138619]  ? trace_hardirqs_on+0xbd/0x310
[  324.142966]  ? kasan_check_read+0x11/0x20
[  324.147136]  ? ___ratelimit+0x3b4/0x672
[  324.151119]  ? trace_hardirqs_off_caller+0x310/0x310
[  324.156243]  ? trace_hardirqs_on+0x310/0x310
[  324.160660]  ? lock_downgrade+0x900/0x900
[  324.164820]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  324.169963]  ? ___ratelimit+0x3b9/0x672
[  324.173962]  ? idr_get_free+0xf70/0xf70
[  324.177952]  ? find_held_lock+0x36/0x1c0
[  324.182058]  oom_kill_process.cold.27+0x10/0x903
[  324.186823]  ? zap_class+0x640/0x640
[  324.190552]  ? check_preemption_disabled+0x48/0x280
[  324.195583]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.200537]  ? kasan_check_read+0x11/0x20
[  324.204704]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.209987]  ? oom_evaluate_task+0x540/0x540
[  324.214408]  ? find_held_lock+0x36/0x1c0
[  324.218482]  ? out_of_memory+0x974/0x1430
[  324.222641]  ? lock_downgrade+0x900/0x900
[  324.226815]  ? check_preemption_disabled+0x48/0x280
[  324.231841]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.236776]  ? kasan_check_read+0x11/0x20
[  324.240929]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.246218]  ? rcu_softirq_qs+0x20/0x20
[  324.250205]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.255747]  ? oom_evaluate_task+0x302/0x540
[  324.260168]  out_of_memory+0xa84/0x1430
[  324.264158]  ? oom_killer_disable+0x3a0/0x3a0
[  324.268665]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  324.273603]  ? __ww_mutex_check_waiters+0x160/0x160
[  324.278639]  __alloc_pages_slowpath+0x2354/0x2e10
[  324.283519]  ? warn_alloc+0x120/0x120
[  324.287323]  ? mark_held_locks+0x130/0x130
[  324.291571]  ? find_get_entry+0xaae/0x1120
[  324.295823]  ? filemap_map_pages+0x1a20/0x1a20
[  324.300417]  ? zap_class+0x640/0x640
[  324.304142]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  324.309688]  ? check_preemption_disabled+0x48/0x280
[  324.314709]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.320253]  ? should_fail+0x22d/0xd01
[  324.324158]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  324.329272]  ? zap_class+0x640/0x640
[  324.333017]  ? __lock_is_held+0xb5/0x140
[  324.337104]  ? mark_held_locks+0x130/0x130
[  324.341345]  ? lock_release+0xa00/0xa00
[  324.345333]  ? perf_trace_sched_process_exec+0x860/0x860
[  324.350803]  ? xa_load+0x2ba/0x460
[  324.354354]  ? lock_downgrade+0x900/0x900
[  324.358510]  ? __might_sleep+0x95/0x190
[  324.362636]  __alloc_pages_nodemask+0xa80/0xde0
[  324.367322]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  324.372353]  ? __page_cache_alloc+0x191/0x5c0
[  324.376862]  ? xa_load+0x2e1/0x460
[  324.380410]  ? xa_clear_mark+0x40/0x40
[  324.384307]  ? zap_class+0x640/0x640
[  324.388031]  ? zap_class+0x640/0x640
[  324.391752]  ? zap_class+0x640/0x640
[  324.395469]  ? __do_page_cache_readahead+0x663/0x810
[  324.400587]  ? find_held_lock+0x36/0x1c0
[  324.404666]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  324.410215]  alloc_pages_current+0x173/0x350
[  324.414638]  __page_cache_alloc+0x38c/0x5c0
[  324.418978]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.423920]  ? kasan_check_read+0x11/0x20
[  324.428091]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.433395]  ? generic_perform_write+0x6a0/0x6a0
[  324.438165]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.443714]  ? check_preemption_disabled+0x48/0x280
[  324.448745]  filemap_fault+0x1595/0x25f0
[  324.452865]  ? __lock_page_or_retry+0xa00/0xa00
[  324.457539]  ? mark_held_locks+0x130/0x130
[  324.461798]  ? filemap_map_pages+0xd6b/0x1a20
[  324.466301]  ? lock_downgrade+0x900/0x900
[  324.470464]  ? check_preemption_disabled+0x48/0x280
[  324.475592]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.480531]  ? kasan_check_read+0x11/0x20
[  324.484683]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.489973]  ? rcu_softirq_qs+0x20/0x20
[  324.494010]  ? filemap_map_pages+0xd92/0x1a20
[  324.498526]  ? find_get_entries_tag+0x1400/0x1400
[  324.503374]  ? find_held_lock+0x36/0x1c0
[  324.507463]  ? lock_acquire+0x1ed/0x520
[  324.511439]  ? ext4_filemap_fault+0x7a/0xad
[  324.515775]  ? lock_release+0xa00/0xa00
[  324.519755]  ? perf_trace_sched_process_exec+0x860/0x860
[  324.525212]  ? print_usage_bug+0xc0/0xc0
[  324.529278]  ? print_usage_bug+0xc0/0xc0
[  324.533357]  ? down_read+0x8d/0x120
[  324.536993]  ? ext4_filemap_fault+0x7a/0xad
[  324.541323]  ? __down_interruptible+0x700/0x700
[  324.546033]  ext4_filemap_fault+0x82/0xad
[  324.550197]  __do_fault+0x100/0x6b0
[  324.553832]  ? find_held_lock+0x36/0x1c0
[  324.557913]  ? pmd_devmap_trans_unstable+0x220/0x220
[  324.563028]  ? mark_held_locks+0x130/0x130
[  324.567280]  ? mark_held_locks+0x130/0x130
[  324.571532]  ? kasan_check_read+0x11/0x20
[  324.575691]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.581250]  __handle_mm_fault+0x3ea0/0x5be0
[  324.585667]  ? perf_trace_lock+0x7a0/0x7a0
[  324.589941]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  324.594799]  ? __switch_to_asm+0x34/0x70
[  324.598864]  ? __switch_to_asm+0x34/0x70
[  324.602952]  ? zap_class+0x640/0x640
[  324.606672]  ? zap_class+0x640/0x640
[  324.610389]  ? __x64_sys_futex+0x53e/0x6a0
[  324.614630]  ? find_held_lock+0x36/0x1c0
[  324.618704]  ? handle_mm_fault+0x42a/0xc70
[  324.622953]  ? lock_downgrade+0x900/0x900
[  324.627111]  ? check_preemption_disabled+0x48/0x280
[  324.632146]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.637096]  ? kasan_check_read+0x11/0x20
[  324.641246]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.646528]  ? rcu_softirq_qs+0x20/0x20
[  324.650507]  ? trace_hardirqs_off_caller+0x310/0x310
[  324.655623]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.661175]  ? check_preemption_disabled+0x48/0x280
[  324.666211]  handle_mm_fault+0x54f/0xc70
[  324.670283]  ? __handle_mm_fault+0x5be0/0x5be0
[  324.674879]  ? find_vma+0x34/0x190
[  324.678431]  __do_page_fault+0x5e8/0xe60
[  324.682498]  ? trace_hardirqs_off+0xb8/0x310
[  324.686920]  do_page_fault+0xf2/0x7e0
[  324.690734]  ? vmalloc_sync_all+0x30/0x30
[  324.694891]  ? error_entry+0x70/0xd0
[  324.698609]  ? trace_hardirqs_off_caller+0xbb/0x310
[  324.703631]  ? trace_hardirqs_on_caller+0xc0/0x310
[  324.708578]  ? syscall_return_slowpath+0x5e0/0x5e0
[  324.713510]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  324.718363]  ? trace_hardirqs_on_caller+0x310/0x310
[  324.723383]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  324.728845]  ? prepare_exit_to_usermode+0x291/0x3b0
[  324.733865]  ? page_fault+0x8/0x30
[  324.737412]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  324.742262]  ? page_fault+0x8/0x30
[  324.745806]  page_fault+0x1e/0x30
[  324.749260] RIP: 0033:0x44b69a
[  324.752881] Code: Bad RIP value.
[  324.756245] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  324.761608] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  324.768881] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  324.776155] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  324.783429] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  324.790705] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  324.798018] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  324.798025] warn_alloc_show_mem: 1 callbacks suppressed
[  324.798033] Mem-Info:
[  324.805241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  324.810622] active_anon:47227 inactive_anon:190 isolated_anon:0
[  324.810622]  active_file:11 inactive_file:14 isolated_file:0
[  324.810622]  unevictable:0 dirty:0 writeback:0 unstable:0
[  324.810622]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  324.810622]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  324.810622]  free:13756 free_pcp:235 free_cma:0
[  324.813005] Call Trace:
[  324.822418] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  324.855292]  <IRQ>
[  324.857871] 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
[  324.885411]  dump_stack+0x244/0x39d
[  324.887544] lowmem_reserve[]: 0 2818 6321 6321
[  324.913696]  ? dump_stack_print_info.cold.1+0x20/0x20
[  324.917308] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  324.921903]  warn_alloc.cold.116+0xb7/0x1bd
[  324.927059] lowmem_reserve[]: 0 0 3503 3503
[  324.954413]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  324.958714] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  324.963042]  ? lock_downgrade+0x900/0x900
[  324.967862] lowmem_reserve[]: 0 0 0 0
[  324.996779]  ? trace_hardirqs_off+0xb8/0x310
[  325.000906] 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
[  325.004710]  ? trace_hardirqs_off+0xb8/0x310
[  325.009088] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  325.022637]  __alloc_pages_slowpath+0x26e8/0x2e10
[  325.027030] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  325.042326]  ? warn_alloc+0x120/0x120
[  325.047226] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  325.062342]  ? print_usage_bug+0xc0/0xc0
[  325.066125] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  325.074972]  ? warn_alloc+0x120/0x120
[  325.079011] 269 total pagecache pages
[  325.087597]  ? warn_alloc+0x120/0x120
[  325.091388] 0 pages in swap cache
[  325.095218]  ? print_usage_bug+0xc0/0xc0
[  325.098989] Swap cache stats: add 0, delete 0, find 0/0
[  325.098998] Free swap  = 0kB
[  325.102453]  ? print_usage_bug+0xc0/0xc0
[  325.106488] Total swap = 0kB
[  325.111855]  ? __lock_acquire+0x62f/0x4c20
[  325.114842] 1965979 pages RAM
[  325.118914]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  325.121900] 0 pages HighMem/MovableOnly
[  325.126137]  ? should_fail+0x22d/0xd01
[  325.129217] 342853 pages reserved
[  325.134782]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  325.138729] 0 pages cma reserved
[  325.142630]  ? __lock_acquire+0x62f/0x4c20
[  325.146210] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  325.151178]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  325.154518] syz-fuzzer cpuset=/ mems_allowed=0
[  325.158763]  ? __lock_acquire+0x62f/0x4c20
[  325.182900]  ? should_fail+0x22d/0xd01
[  325.186817]  ? find_held_lock+0x36/0x1c0
[  325.190902]  ? mark_held_locks+0x130/0x130
[  325.195181]  ? mark_held_locks+0x130/0x130
[  325.199427]  ? zap_class+0x640/0x640
[  325.203146]  ? zap_class+0x640/0x640
[  325.206872]  ? print_usage_bug+0xc0/0xc0
[  325.210943]  ? do_raw_spin_unlock+0xa7/0x330
[  325.215358]  ? zap_class+0x640/0x640
[  325.219079]  ? print_usage_bug+0xc0/0xc0
[  325.223149]  ? wq_watchdog_touch+0x9c/0xfe
[  325.227397]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.232966]  ? check_preemption_disabled+0x48/0x280
[  325.238009]  ? __lock_is_held+0xb5/0x140
[  325.242108]  __alloc_pages_nodemask+0xa80/0xde0
[  325.246810]  ? zap_class+0x640/0x640
[  325.250559]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  325.255596]  ? find_held_lock+0x36/0x1c0
[  325.259686]  ? ____cache_alloc_node+0x1c7/0x1e0
[  325.264366]  ? lock_downgrade+0x900/0x900
[  325.268534]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.274108]  cache_grow_begin+0xa5/0x8c0
[  325.278185]  ? do_raw_spin_unlock+0xa7/0x330
[  325.282621]  fallback_alloc+0x204/0x2e0
[  325.286617]  ____cache_alloc_node+0x1c7/0x1e0
[  325.291127]  kmem_cache_alloc_node+0xe3/0x730
[  325.295637]  ? ipv6_get_ifaddr+0x42e/0x620
[  325.299898]  __alloc_skb+0x119/0x770
[  325.303631]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  325.308922]  ? netdev_alloc_frag+0x1f0/0x1f0
[  325.313353]  ? lock_downgrade+0x900/0x900
[  325.317517]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.323076]  ? refcount_sub_and_test_checked+0x203/0x310
[  325.328573]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  325.334050]  ? addrconf_rs_timer+0x690/0x690
[  325.338495]  ndisc_alloc_skb+0x144/0x340
[  325.342578]  ndisc_send_rs+0x331/0x6e0
[  325.346486]  addrconf_rs_timer+0x314/0x690
[  325.350740]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.354998]  call_timer_fn+0x272/0x920
[  325.358898]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.363141]  ? process_timeout+0x40/0x40
[  325.367236]  ? __run_timers+0x7da/0xc70
[  325.371229]  ? _raw_spin_unlock_irq+0x27/0x80
[  325.375727]  ? _raw_spin_unlock_irq+0x27/0x80
[  325.380225]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.384469]  ? lockdep_hardirqs_on+0x296/0x5b0
[  325.389067]  ? trace_hardirqs_on+0xbd/0x310
[  325.393399]  ? kasan_check_read+0x11/0x20
[  325.397558]  ? __run_timers+0x7da/0xc70
[  325.401544]  ? trace_hardirqs_off_caller+0x310/0x310
[  325.406661]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.410942]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.415192]  __run_timers+0x7e5/0xc70
[  325.419014]  ? timer_fixup_init+0x70/0x70
[  325.423172]  ? lock_acquire+0x1ed/0x520
[  325.427159]  ? zap_class+0x640/0x640
[  325.430883]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.436442]  ? kasan_check_read+0x11/0x20
[  325.440612]  ? do_raw_spin_lock+0x14f/0x350
[  325.444956]  ? find_held_lock+0x36/0x1c0
[  325.449030]  ? zap_class+0x640/0x640
[  325.452753]  ? pvclock_read_flags+0x160/0x160
[  325.457261]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.462824]  ? check_preemption_disabled+0x48/0x280
[  325.467879]  ? __lock_is_held+0xb5/0x140
[  325.471997]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.477581]  ? check_preemption_disabled+0x48/0x280
[  325.482639]  run_timer_softirq+0x52/0xb0
[  325.486721]  ? rcu_read_lock_sched_held+0x14f/0x180
[  325.491763]  __do_softirq+0x308/0xb7e
[  325.495593]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  325.500102]  ? lock_downgrade+0x900/0x900
[  325.504270]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  325.509394]  ? pvclock_read_flags+0x160/0x160
[  325.513908]  ? lapic_next_event+0x5a/0x90
[  325.518075]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.523628]  ? kvm_clock_read+0x18/0x30
[  325.527618]  ? kvm_sched_clock_read+0x9/0x20
[  325.532041]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.537596]  ? check_preemption_disabled+0x48/0x280
[  325.542632]  irq_exit+0x17f/0x1c0
[  325.546103]  smp_apic_timer_interrupt+0x1cb/0x760
[  325.550969]  ? smp_call_function_single_interrupt+0x159/0x650
[  325.556867]  ? smp_call_function_single_interrupt+0x650/0x650
[  325.562766]  ? interrupt_entry+0xb5/0xc0
[  325.566849]  ? trace_hardirqs_off_caller+0xbb/0x310
[  325.571881]  ? trace_hardirqs_off_caller+0xbb/0x310
[  325.576915]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.581780]  ? trace_hardirqs_on_caller+0x310/0x310
[  325.586807]  ? trace_hardirqs_on_caller+0x310/0x310
[  325.591850]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.596709]  apic_timer_interrupt+0xf/0x20
[  325.600950]  </IRQ>
[  325.603206] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  325.608143] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  325.627066] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  325.634796] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  325.642085] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  325.649370] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  325.656654] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  325.663953] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  325.671300]  skb_clone+0x1bb/0x500
[  325.674885]  ? skb_split+0x11e0/0x11e0
[  325.678802]  ? check_preemption_disabled+0x48/0x280
[  325.683841]  ? __this_cpu_preempt_check+0x1c/0x20
[  325.688693]  ? __bpf_redirect+0x54b/0xb20
[  325.692862]  bpf_clone_redirect+0xb9/0x490
[  325.697118]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  325.702152]  ? __sched_text_start+0x8/0x8
[  325.706306]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  325.711086]  ? find_held_lock+0x36/0x1c0
[  325.715164]  ? lock_acquire+0x1ed/0x520
[  325.719157]  ? bpf_test_run+0x3cb/0x780
[  325.723142]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.728689]  ? check_preemption_disabled+0x48/0x280
[  325.733723]  ? kasan_check_read+0x11/0x20
[  325.737880]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  325.743171]  ? rcu_softirq_qs+0x20/0x20
[  325.747158]  ? preempt_schedule+0x4d/0x60
[  325.751316]  ? ___preempt_schedule+0x16/0x18
[  325.755739]  ? bpf_test_run+0x25d/0x780
[  325.759745]  ? netlink_diag_dump+0x2a0/0x2a0
[  325.764173]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  325.768952]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  325.773726]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  325.778579]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  325.784148]  ? fput+0x130/0x1a0
[  325.787434]  ? __bpf_prog_get+0x9b/0x290
[  325.791506]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  325.796356]  ? bpf_prog_test_run+0x130/0x1a0
[  325.800779]  ? __x64_sys_bpf+0x3d8/0x520
[  325.804846]  ? bpf_prog_get+0x20/0x20
[  325.808688]  ? do_syscall_64+0x1b9/0x820
[  325.812754]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  325.818132]  ? syscall_return_slowpath+0x5e0/0x5e0
[  325.823073]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.827932]  ? trace_hardirqs_on_caller+0x310/0x310
[  325.832976]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  325.838001]  ? prepare_exit_to_usermode+0x291/0x3b0
[  325.843037]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.847898]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  325.853326] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  325.853429] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  325.860292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  325.860302] Call Trace:
[  325.866992] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  325.876184]  <IRQ>
[  325.878760] syz-executor4 cpuset=syz4 mems_allowed=0
[  325.889492]  dump_stack+0x244/0x39d
[  325.900347]  ? dump_stack_print_info.cold.1+0x20/0x20
[  325.905559]  warn_alloc.cold.116+0xb7/0x1bd
[  325.909890]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  325.914747]  ? lock_downgrade+0x900/0x900
[  325.918907]  ? trace_hardirqs_off+0xb8/0x310
[  325.923332]  ? trace_hardirqs_off+0xb8/0x310
[  325.927763]  __alloc_pages_slowpath+0x26e8/0x2e10
[  325.932644]  ? warn_alloc+0x120/0x120
[  325.936452]  ? warn_alloc+0x120/0x120
[  325.940261]  ? warn_alloc+0x120/0x120
[  325.944069]  ? print_usage_bug+0xc0/0xc0
[  325.948134]  ? enqueue_hrtimer+0x1a5/0x560
[  325.952375]  ? print_usage_bug+0xc0/0xc0
[  325.956442]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  325.961648]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  325.967197]  ? should_fail+0x22d/0xd01
[  325.971108]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  325.976221]  ? __lock_acquire+0x62f/0x4c20
[  325.980467]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  325.985577]  ? __lock_acquire+0x62f/0x4c20
[  325.989815]  ? should_fail+0x22d/0xd01
[  325.993717]  ? mark_held_locks+0x130/0x130
[  325.997969]  ? mark_held_locks+0x130/0x130
[  326.002213]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  326.007247]  ? ktime_get+0x2c1/0x400
[  326.010975]  ? zap_class+0x640/0x640
[  326.014698]  ? print_usage_bug+0xc0/0xc0
[  326.018766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.024322]  ? check_preemption_disabled+0x48/0x280
[  326.029357]  ? __lock_is_held+0xb5/0x140
[  326.033440]  __alloc_pages_nodemask+0xa80/0xde0
[  326.038117]  ? zap_class+0x640/0x640
[  326.041841]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  326.046877]  ? find_held_lock+0x36/0x1c0
[  326.050961]  ? ____cache_alloc_node+0x1c7/0x1e0
[  326.055640]  ? lock_downgrade+0x900/0x900
[  326.059799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.065357]  cache_grow_begin+0xa5/0x8c0
[  326.069433]  ? do_raw_spin_unlock+0xa7/0x330
[  326.073863]  fallback_alloc+0x204/0x2e0
[  326.077852]  ____cache_alloc_node+0x1c7/0x1e0
[  326.082358]  kmem_cache_alloc_node+0xe3/0x730
[  326.086870]  ? ipv6_get_ifaddr+0x42e/0x620
[  326.091126]  __alloc_skb+0x119/0x770
[  326.094850]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.100141]  ? netdev_alloc_frag+0x1f0/0x1f0
[  326.104557]  ? lock_downgrade+0x900/0x900
[  326.108725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.114283]  ? refcount_sub_and_test_checked+0x203/0x310
[  326.119760]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  326.125219]  ? addrconf_rs_timer+0x690/0x690
[  326.129661]  ndisc_alloc_skb+0x144/0x340
[  326.133734]  ndisc_send_rs+0x331/0x6e0
[  326.137638]  addrconf_rs_timer+0x314/0x690
[  326.141884]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  326.146158]  call_timer_fn+0x272/0x920
[  326.150069]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  326.154321]  ? process_timeout+0x40/0x40
[  326.158398]  ? mark_held_locks+0xc7/0x130
[  326.162566]  ? _raw_spin_unlock_irq+0x27/0x80
[  326.167072]  ? _raw_spin_unlock_irq+0x27/0x80
[  326.171580]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  326.175827]  ? lockdep_hardirqs_on+0x296/0x5b0
[  326.180418]  ? trace_hardirqs_on+0xbd/0x310
[  326.184749]  ? kasan_check_read+0x11/0x20
[  326.188904]  ? __run_timers+0x7da/0xc70
[  326.192888]  ? trace_hardirqs_off_caller+0x310/0x310
[  326.198010]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  326.202252]  __run_timers+0x7e5/0xc70
[  326.206073]  ? timer_fixup_init+0x70/0x70
[  326.210228]  ? kasan_check_read+0x11/0x20
[  326.214379]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.219667]  ? rcu_softirq_qs+0x20/0x20
[  326.223657]  ? mark_held_locks+0xc7/0x130
[  326.227824]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  326.232593]  ? retint_kernel+0x2d/0x2d
[  326.236485]  ? trace_hardirqs_on_caller+0xc0/0x310
[  326.241419]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  326.246188]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  326.251644]  ? zap_class+0x640/0x640
[  326.255373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.260931]  ? check_preemption_disabled+0x48/0x280
[  326.265981]  ? __lock_is_held+0xb5/0x140
[  326.270078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.275626]  ? check_preemption_disabled+0x48/0x280
[  326.280656]  run_timer_softirq+0x52/0xb0
[  326.284724]  ? rcu_read_lock_sched_held+0x14f/0x180
[  326.289747]  __do_softirq+0x308/0xb7e
[  326.293557]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  326.298062]  ? lock_downgrade+0x900/0x900
[  326.302230]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  326.307357]  ? pvclock_read_flags+0x160/0x160
[  326.311863]  ? lapic_next_event+0x5a/0x90
[  326.316079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.321633]  ? kvm_clock_read+0x18/0x30
[  326.325613]  ? kvm_sched_clock_read+0x9/0x20
[  326.330031]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.335584]  ? check_preemption_disabled+0x48/0x280
[  326.340616]  irq_exit+0x17f/0x1c0
[  326.344077]  smp_apic_timer_interrupt+0x1cb/0x760
[  326.348929]  ? smp_call_function_single_interrupt+0x650/0x650
[  326.354826]  ? interrupt_entry+0xb5/0xc0
[  326.358894]  ? trace_hardirqs_off_caller+0xbb/0x310
[  326.363914]  ? trace_hardirqs_off_caller+0xbb/0x310
[  326.368981]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  326.373831]  ? trace_hardirqs_on_caller+0x310/0x310
[  326.378849]  ? trace_hardirqs_on_caller+0x310/0x310
[  326.383875]  ? task_prio+0x50/0x50
[  326.387420]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.392980]  ? check_preemption_disabled+0x48/0x280
[  326.398012]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  326.402876]  apic_timer_interrupt+0xf/0x20
[  326.407111]  </IRQ>
[  326.409355] RIP: 0010:dump_stack+0x358/0x39d
[  326.413769] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  326.432698] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  326.440414] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  326.447686] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  326.454966] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  326.462240] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  326.469518] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  326.476838]  ? dump_stack+0x34f/0x39d
[  326.480669]  ? dump_stack_print_info.cold.1+0x20/0x20
[  326.485871]  ? mark_held_locks+0x130/0x130
[  326.490122]  ? mark_held_locks+0x130/0x130
[  326.494368]  dump_header+0x27b/0xf72
[  326.498102]  ? pagefault_out_of_memory+0x197/0x197
[  326.503052]  ? __lock_acquire+0x62f/0x4c20
[  326.507295]  ? percpu_ref_get_many+0x240/0x240
[  326.511885]  ? print_usage_bug+0xc0/0xc0
[  326.515960]  ? zap_class+0x640/0x640
[  326.519679]  ? print_usage_bug+0xc0/0xc0
[  326.523742]  ? print_usage_bug+0xc0/0xc0
[  326.527812]  ? zap_class+0x640/0x640
[  326.531535]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.537083]  ? find_held_lock+0x36/0x1c0
[  326.541158]  ? mark_held_locks+0xc7/0x130
[  326.545312]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  326.550418]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  326.555531]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  326.560126]  ? trace_hardirqs_on+0xbd/0x310
[  326.564461]  ? kasan_check_read+0x11/0x20
[  326.568623]  ? ___ratelimit+0x3b4/0x672
[  326.572608]  ? trace_hardirqs_off_caller+0x310/0x310
[  326.577750]  ? trace_hardirqs_on+0x310/0x310
[  326.582167]  ? lock_downgrade+0x900/0x900
[  326.586328]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  326.591444]  ? ___ratelimit+0x3b9/0x672
[  326.595428]  ? idr_get_free+0xf70/0xf70
[  326.599409]  ? find_held_lock+0x36/0x1c0
[  326.603484]  oom_kill_process.cold.27+0x10/0x903
[  326.608245]  ? zap_class+0x640/0x640
[  326.611988]  ? check_preemption_disabled+0x48/0x280
[  326.617016]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.621963]  ? kasan_check_read+0x11/0x20
[  326.626123]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.631410]  ? oom_evaluate_task+0x540/0x540
[  326.635841]  ? find_held_lock+0x36/0x1c0
[  326.639914]  ? out_of_memory+0x974/0x1430
[  326.644085]  ? lock_downgrade+0x900/0x900
[  326.648235]  ? check_preemption_disabled+0x48/0x280
[  326.653263]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.658199]  ? kasan_check_read+0x11/0x20
[  326.662353]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.667636]  ? rcu_softirq_qs+0x20/0x20
[  326.671626]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.677196]  ? oom_evaluate_task+0x302/0x540
[  326.681632]  out_of_memory+0xa84/0x1430
[  326.685627]  ? oom_killer_disable+0x3a0/0x3a0
[  326.690128]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  326.695075]  ? __ww_mutex_check_waiters+0x160/0x160
[  326.700114]  __alloc_pages_slowpath+0x2354/0x2e10
[  326.704995]  ? warn_alloc+0x120/0x120
[  326.708800]  ? mark_held_locks+0x130/0x130
[  326.713056]  ? find_get_entry+0xaae/0x1120
[  326.717317]  ? filemap_map_pages+0x1a20/0x1a20
[  326.721913]  ? zap_class+0x640/0x640
[  326.725649]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.731194]  ? check_preemption_disabled+0x48/0x280
[  326.736214]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.741758]  ? should_fail+0x22d/0xd01
[  326.745662]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  326.751158]  ? zap_class+0x640/0x640
[  326.754923]  ? __lock_is_held+0xb5/0x140
[  326.759011]  ? mark_held_locks+0x130/0x130
[  326.763257]  ? lock_release+0xa00/0xa00
[  326.767237]  ? perf_trace_sched_process_exec+0x860/0x860
[  326.772693]  ? xa_load+0x2ba/0x460
[  326.776238]  ? lock_downgrade+0x900/0x900
[  326.780397]  ? __might_sleep+0x95/0x190
[  326.784388]  __alloc_pages_nodemask+0xa80/0xde0
[  326.789077]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  326.794107]  ? __page_cache_alloc+0x191/0x5c0
[  326.798614]  ? xa_load+0x2e1/0x460
[  326.802162]  ? xa_clear_mark+0x40/0x40
[  326.806060]  ? zap_class+0x640/0x640
[  326.809786]  ? zap_class+0x640/0x640
[  326.813499]  ? zap_class+0x640/0x640
[  326.817221]  ? __do_page_cache_readahead+0x663/0x810
[  326.822333]  ? find_held_lock+0x36/0x1c0
[  326.826403]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  326.831958]  alloc_pages_current+0x173/0x350
[  326.836395]  __page_cache_alloc+0x38c/0x5c0
[  326.840718]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.845652]  ? kasan_check_read+0x11/0x20
[  326.849812]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.855825]  ? generic_perform_write+0x6a0/0x6a0
[  326.860590]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.866136]  ? check_preemption_disabled+0x48/0x280
[  326.871172]  filemap_fault+0x1595/0x25f0
[  326.875252]  ? __lock_page_or_retry+0xa00/0xa00
[  326.879930]  ? mark_held_locks+0x130/0x130
[  326.884190]  ? filemap_map_pages+0xd6b/0x1a20
[  326.888700]  ? lock_downgrade+0x900/0x900
[  326.892852]  ? check_preemption_disabled+0x48/0x280
[  326.897878]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.902812]  ? kasan_check_read+0x11/0x20
[  326.906971]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.912252]  ? rcu_softirq_qs+0x20/0x20
[  326.916249]  ? filemap_map_pages+0xd92/0x1a20
[  326.920771]  ? find_get_entries_tag+0x1400/0x1400
[  326.925618]  ? find_held_lock+0x36/0x1c0
[  326.929703]  ? lock_acquire+0x1ed/0x520
[  326.933682]  ? ext4_filemap_fault+0x7a/0xad
[  326.938012]  ? lock_release+0xa00/0xa00
[  326.941990]  ? perf_trace_sched_process_exec+0x860/0x860
[  326.947472]  ? print_usage_bug+0xc0/0xc0
[  326.951558]  ? print_usage_bug+0xc0/0xc0
[  326.955647]  ? down_read+0x8d/0x120
[  326.959274]  ? ext4_filemap_fault+0x7a/0xad
[  326.963617]  ? __down_interruptible+0x700/0x700
[  326.968302]  ext4_filemap_fault+0x82/0xad
[  326.972465]  __do_fault+0x100/0x6b0
[  326.976097]  ? find_held_lock+0x36/0x1c0
[  326.980166]  ? pmd_devmap_trans_unstable+0x220/0x220
[  326.985283]  ? mark_held_locks+0x130/0x130
[  326.989554]  ? mark_held_locks+0x130/0x130
[  326.993824]  ? kasan_check_read+0x11/0x20
[  326.997979]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  327.003525]  __handle_mm_fault+0x3ea0/0x5be0
[  327.007947]  ? perf_trace_lock+0x7a0/0x7a0
[  327.012195]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  327.017053]  ? __switch_to_asm+0x34/0x70
[  327.021120]  ? __switch_to_asm+0x34/0x70
[  327.025204]  ? zap_class+0x640/0x640
[  327.028923]  ? zap_class+0x640/0x640
[  327.032648]  ? __x64_sys_futex+0x53e/0x6a0
[  327.036893]  ? find_held_lock+0x36/0x1c0
[  327.040984]  ? handle_mm_fault+0x42a/0xc70
[  327.045226]  ? lock_downgrade+0x900/0x900
[  327.049377]  ? check_preemption_disabled+0x48/0x280
[  327.054404]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  327.059337]  ? kasan_check_read+0x11/0x20
[  327.063493]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  327.068778]  ? rcu_softirq_qs+0x20/0x20
[  327.072770]  ? trace_hardirqs_off_caller+0x310/0x310
[  327.077905]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  327.083459]  ? check_preemption_disabled+0x48/0x280
[  327.088487]  handle_mm_fault+0x54f/0xc70
[  327.092556]  ? __handle_mm_fault+0x5be0/0x5be0
[  327.097146]  ? find_vma+0x34/0x190
[  327.100694]  __do_page_fault+0x5e8/0xe60
[  327.104764]  ? trace_hardirqs_off+0xb8/0x310
[  327.109192]  do_page_fault+0xf2/0x7e0
[  327.112997]  ? vmalloc_sync_all+0x30/0x30
[  327.117148]  ? error_entry+0x70/0xd0
[  327.120871]  ? trace_hardirqs_off_caller+0xbb/0x310
[  327.125890]  ? trace_hardirqs_on_caller+0xc0/0x310
[  327.130843]  ? syscall_return_slowpath+0x5e0/0x5e0
[  327.135781]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  327.140636]  ? trace_hardirqs_on_caller+0x310/0x310
[  327.145667]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  327.151130]  ? prepare_exit_to_usermode+0x291/0x3b0
[  327.156158]  ? page_fault+0x8/0x30
[  327.159704]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  327.164553]  ? page_fault+0x8/0x30
[  327.168107]  page_fault+0x1e/0x30
[  327.171564] RIP: 0033:0x44b69a
[  327.174773] Code: Bad RIP value.
[  327.178135] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  327.183502] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  327.190776] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  327.198054] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  327.205330] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  327.212607] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  327.219914] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  327.219920] warn_alloc_show_mem: 1 callbacks suppressed
[  327.219932] Mem-Info:
[  327.227137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  327.227148] Call Trace:
[  327.232525] active_anon:47227 inactive_anon:190 isolated_anon:0
[  327.232525]  active_file:11 inactive_file:14 isolated_file:0
[  327.232525]  unevictable:0 dirty:0 writeback:0 unstable:0
[  327.232525]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  327.232525]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  327.232525]  free:13756 free_pcp:235 free_cma:0
[  327.234897]  <IRQ>
[  327.244271] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  327.246863]  dump_stack+0x244/0x39d
[  327.279735] 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
[  327.281903]  ? dump_stack_print_info.cold.1+0x20/0x20
[  327.309384] lowmem_reserve[]: 0 2818 6321 6321
[  327.313073]  warn_alloc.cold.116+0xb7/0x1bd
[  327.339168] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  327.344376]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  327.348946] lowmem_reserve[]: 0 0 3503 3503
[  327.353281]  ? lock_downgrade+0x900/0x900
[  327.380594] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  327.385454]  ? trace_hardirqs_off+0xb8/0x310
[  327.389737] lowmem_reserve[]: 0 0 0 0
[  327.393944]  ? trace_hardirqs_off+0xb8/0x310
[  327.422818] 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
[  327.427249]  __alloc_pages_slowpath+0x26e8/0x2e10
[  327.431023] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  327.435464]  ? warn_alloc+0x120/0x120
[  327.448952] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  327.453844]  ? print_usage_bug+0xc0/0xc0
[  327.469093] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  327.472897]  ? warn_alloc+0x120/0x120
[  327.487980] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  327.492057]  ? warn_alloc+0x120/0x120
[  327.500871] 269 total pagecache pages
[  327.504693]  ? print_usage_bug+0xc0/0xc0
[  327.513249] 0 pages in swap cache
[  327.517065]  ? kvm_clock_read+0x18/0x30
[  327.520840] Swap cache stats: add 0, delete 0, find 0/0
[  327.525434]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  327.528857] Free swap  = 0kB
[  327.532831]  ? print_usage_bug+0xc0/0xc0
[  327.538157] Total swap = 0kB
[  327.538166] 1965979 pages RAM
[  327.543993]  ? __lock_acquire+0x62f/0x4c20
[  327.546985] 0 pages HighMem/MovableOnly
[  327.551054]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  327.554049] 342853 pages reserved
[  327.554057] 0 pages cma reserved
[  327.557164]  ? should_fail+0x22d/0xd01
[  327.561478] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  327.565368]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  327.565391]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  327.565410]  ? __lock_acquire+0x62f/0x4c20
[  327.571069] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  327.574450]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  327.577803] syz-fuzzer cpuset=/ mems_allowed=0
[  327.581693]  ? __lock_acquire+0x62f/0x4c20
[  327.626877]  ? should_fail+0x22d/0xd01
[  327.630773]  ? rcu_irq_exit+0x1a2/0x390
[  327.634766]  ? mark_held_locks+0x130/0x130
[  327.639010]  ? mark_held_locks+0x130/0x130
[  327.643256]  ? mark_held_locks+0xc7/0x130
[  327.647409]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  327.652432]  ? zap_class+0x640/0x640
[  327.656168]  ? print_usage_bug+0xc0/0xc0
[  327.660241]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.665788]  ? check_preemption_disabled+0x48/0x280
[  327.670837]  ? __lock_is_held+0xb5/0x140
[  327.674908]  __alloc_pages_nodemask+0xa80/0xde0
[  327.679592]  ? zap_class+0x640/0x640
[  327.683315]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  327.688354]  ? find_held_lock+0x36/0x1c0
[  327.692626]  ? ____cache_alloc_node+0x1c7/0x1e0
[  327.697302]  ? lock_downgrade+0x900/0x900
[  327.701461]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.707449]  cache_grow_begin+0xa5/0x8c0
[  327.711554]  ? do_raw_spin_unlock+0xa7/0x330
[  327.715986]  fallback_alloc+0x204/0x2e0
[  327.719982]  ____cache_alloc_node+0x1c7/0x1e0
[  327.724493]  kmem_cache_alloc_node+0xe3/0x730
[  327.728994]  ? ipv6_get_ifaddr+0x42e/0x620
[  327.733248]  __alloc_skb+0x119/0x770
[  327.736989]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  327.742308]  ? netdev_alloc_frag+0x1f0/0x1f0
[  327.746737]  ? lock_downgrade+0x900/0x900
[  327.750898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.756444]  ? refcount_sub_and_test_checked+0x203/0x310
[  327.761920]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  327.767387]  ? addrconf_rs_timer+0x690/0x690
[  327.771817]  ndisc_alloc_skb+0x144/0x340
[  327.775900]  ndisc_send_rs+0x331/0x6e0
[  327.779802]  addrconf_rs_timer+0x314/0x690
[  327.784048]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.788299]  call_timer_fn+0x272/0x920
[  327.792197]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.796441]  ? process_timeout+0x40/0x40
[  327.800513]  ? __run_timers+0x7da/0xc70
[  327.804505]  ? _raw_spin_unlock_irq+0x27/0x80
[  327.809010]  ? _raw_spin_unlock_irq+0x27/0x80
[  327.813514]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.817765]  ? lockdep_hardirqs_on+0x296/0x5b0
[  327.822356]  ? trace_hardirqs_on+0xbd/0x310
[  327.826687]  ? kasan_check_read+0x11/0x20
[  327.830838]  ? __run_timers+0x7da/0xc70
[  327.834818]  ? trace_hardirqs_off_caller+0x310/0x310
[  327.839933]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.844187]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.848425]  __run_timers+0x7e5/0xc70
[  327.852241]  ? timer_fixup_init+0x70/0x70
[  327.856395]  ? lock_acquire+0x1ed/0x520
[  327.860380]  ? zap_class+0x640/0x640
[  327.864099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.869676]  ? kasan_check_read+0x11/0x20
[  327.873833]  ? do_raw_spin_lock+0x14f/0x350
[  327.878173]  ? find_held_lock+0x36/0x1c0
[  327.882744]  ? zap_class+0x640/0x640
[  327.886469]  ? pvclock_read_flags+0x160/0x160
[  327.890983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.896530]  ? check_preemption_disabled+0x48/0x280
[  327.901577]  ? __lock_is_held+0xb5/0x140
[  327.905652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.911209]  ? check_preemption_disabled+0x48/0x280
[  327.916237]  run_timer_softirq+0x52/0xb0
[  327.920321]  ? rcu_read_lock_sched_held+0x14f/0x180
[  327.925347]  __do_softirq+0x308/0xb7e
[  327.929159]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  327.933659]  ? lock_downgrade+0x900/0x900
[  327.937821]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  327.942946]  ? pvclock_read_flags+0x160/0x160
[  327.947449]  ? lapic_next_event+0x5a/0x90
[  327.951606]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.957169]  ? kvm_clock_read+0x18/0x30
[  327.961154]  ? kvm_sched_clock_read+0x9/0x20
[  327.965579]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.971126]  ? check_preemption_disabled+0x48/0x280
[  327.976161]  irq_exit+0x17f/0x1c0
[  327.979630]  smp_apic_timer_interrupt+0x1cb/0x760
[  327.984781]  ? smp_call_function_single_interrupt+0x159/0x650
[  327.991005]  ? smp_call_function_single_interrupt+0x650/0x650
[  327.996897]  ? interrupt_entry+0xb5/0xc0
[  328.000974]  ? trace_hardirqs_off_caller+0xbb/0x310
[  328.005997]  ? trace_hardirqs_off_caller+0xbb/0x310
[  328.011039]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.015921]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.020956]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.026009]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.030865]  apic_timer_interrupt+0xf/0x20
[  328.035100]  </IRQ>
[  328.037344] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  328.042280] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  328.061202] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  328.068934] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  328.076465] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  328.083746] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  328.091037] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  328.098325] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  328.105660]  skb_clone+0x1bb/0x500
[  328.109215]  ? skb_split+0x11e0/0x11e0
[  328.113107]  ? check_preemption_disabled+0x48/0x280
[  328.118135]  ? __this_cpu_preempt_check+0x1c/0x20
[  328.122982]  ? __bpf_redirect+0x54b/0xb20
[  328.127146]  bpf_clone_redirect+0xb9/0x490
[  328.131414]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  328.136440]  ? __sched_text_start+0x8/0x8
[  328.140596]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  328.145369]  ? find_held_lock+0x36/0x1c0
[  328.149442]  ? lock_acquire+0x1ed/0x520
[  328.153428]  ? bpf_test_run+0x3cb/0x780
[  328.157407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.162963]  ? check_preemption_disabled+0x48/0x280
[  328.168002]  ? kasan_check_read+0x11/0x20
[  328.172156]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  328.177436]  ? rcu_softirq_qs+0x20/0x20
[  328.181418]  ? preempt_schedule+0x4d/0x60
[  328.185579]  ? ___preempt_schedule+0x16/0x18
[  328.190006]  ? bpf_test_run+0x25d/0x780
[  328.193998]  ? netlink_diag_dump+0x2a0/0x2a0
[  328.198417]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  328.203179]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  328.207955]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  328.212807]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  328.218349]  ? fput+0x130/0x1a0
[  328.221664]  ? __bpf_prog_get+0x9b/0x290
[  328.225741]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  328.230586]  ? bpf_prog_test_run+0x130/0x1a0
[  328.235005]  ? __x64_sys_bpf+0x3d8/0x520
[  328.239073]  ? bpf_prog_get+0x20/0x20
[  328.242928]  ? do_syscall_64+0x1b9/0x820
[  328.247012]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  328.252383]  ? syscall_return_slowpath+0x5e0/0x5e0
[  328.257316]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.262165]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.267206]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  328.272229]  ? prepare_exit_to_usermode+0x291/0x3b0
[  328.277252]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.282108]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  328.287493] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  328.287589] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  328.294432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  328.294438] Call Trace:
[  328.294445]  <IRQ>
[  328.294466]  dump_stack+0x244/0x39d
[  328.294484]  ? dump_stack_print_info.cold.1+0x20/0x20
[  328.294511]  warn_alloc.cold.116+0xb7/0x1bd
[  328.301048] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  328.310342]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  328.312905] syz-executor4 cpuset=syz4 mems_allowed=0
[  328.315057]  ? lock_downgrade+0x900/0x900
[  328.352768]  ? trace_hardirqs_off+0xb8/0x310
[  328.357192]  ? trace_hardirqs_off+0xb8/0x310
[  328.361615]  __alloc_pages_slowpath+0x26e8/0x2e10
[  328.366492]  ? warn_alloc+0x120/0x120
[  328.370307]  ? print_usage_bug+0xc0/0xc0
[  328.374397]  ? warn_alloc+0x120/0x120
[  328.378206]  ? warn_alloc+0x120/0x120
[  328.382014]  ? print_usage_bug+0xc0/0xc0
[  328.386092]  ? print_usage_bug+0xc0/0xc0
[  328.390156]  ? __lock_acquire+0x62f/0x4c20
[  328.394404]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  328.399951]  ? should_fail+0x22d/0xd01
[  328.403849]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  328.408978]  ? __lock_acquire+0x62f/0x4c20
[  328.413220]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  328.418322]  ? __lock_acquire+0x62f/0x4c20
[  328.422559]  ? should_fail+0x22d/0xd01
[  328.426451]  ? find_held_lock+0x36/0x1c0
[  328.430524]  ? mark_held_locks+0x130/0x130
[  328.434768]  ? mark_held_locks+0x130/0x130
[  328.439003]  ? zap_class+0x640/0x640
[  328.442718]  ? zap_class+0x640/0x640
[  328.446434]  ? print_usage_bug+0xc0/0xc0
[  328.450495]  ? do_raw_spin_unlock+0xa7/0x330
[  328.454906]  ? zap_class+0x640/0x640
[  328.458629]  ? print_usage_bug+0xc0/0xc0
[  328.462693]  ? wq_watchdog_touch+0x9c/0xfe
[  328.466954]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.472498]  ? check_preemption_disabled+0x48/0x280
[  328.477527]  ? __lock_is_held+0xb5/0x140
[  328.481597]  __alloc_pages_nodemask+0xa80/0xde0
[  328.486270]  ? zap_class+0x640/0x640
[  328.489992]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  328.495028]  ? find_held_lock+0x36/0x1c0
[  328.499114]  ? ____cache_alloc_node+0x1c7/0x1e0
[  328.503788]  ? lock_downgrade+0x900/0x900
[  328.507959]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.513515]  cache_grow_begin+0xa5/0x8c0
[  328.517580]  ? do_raw_spin_unlock+0xa7/0x330
[  328.522002]  fallback_alloc+0x204/0x2e0
[  328.525988]  ____cache_alloc_node+0x1c7/0x1e0
[  328.530489]  kmem_cache_alloc_node+0xe3/0x730
[  328.534992]  ? ipv6_get_ifaddr+0x42e/0x620
[  328.539239]  __alloc_skb+0x119/0x770
[  328.542961]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  328.548245]  ? netdev_alloc_frag+0x1f0/0x1f0
[  328.552665]  ? lock_downgrade+0x900/0x900
[  328.556830]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.562376]  ? refcount_sub_and_test_checked+0x203/0x310
[  328.567835]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  328.573302]  ? addrconf_rs_timer+0x690/0x690
[  328.577729]  ndisc_alloc_skb+0x144/0x340
[  328.581806]  ndisc_send_rs+0x331/0x6e0
[  328.585703]  addrconf_rs_timer+0x314/0x690
[  328.589964]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.594219]  call_timer_fn+0x272/0x920
[  328.598115]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.602375]  ? process_timeout+0x40/0x40
[  328.606450]  ? mark_held_locks+0xc7/0x130
[  328.610605]  ? _raw_spin_unlock_irq+0x27/0x80
[  328.615105]  ? _raw_spin_unlock_irq+0x27/0x80
[  328.619603]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.623841]  ? lockdep_hardirqs_on+0x296/0x5b0
[  328.628428]  ? trace_hardirqs_on+0xbd/0x310
[  328.632766]  ? kasan_check_read+0x11/0x20
[  328.636918]  ? __run_timers+0x7da/0xc70
[  328.640905]  ? trace_hardirqs_off_caller+0x310/0x310
[  328.646024]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.650279]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  328.654519]  __run_timers+0x7e5/0xc70
[  328.658332]  ? timer_fixup_init+0x70/0x70
[  328.662507]  ? kasan_check_read+0x11/0x20
[  328.666664]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  328.671954]  ? rcu_softirq_qs+0x20/0x20
[  328.675949]  ? mark_held_locks+0xc7/0x130
[  328.680105]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  328.684868]  ? retint_kernel+0x2d/0x2d
[  328.688767]  ? trace_hardirqs_on_caller+0xc0/0x310
[  328.693703]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  328.698471]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  328.703927]  ? zap_class+0x640/0x640
[  328.707658]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.713200]  ? check_preemption_disabled+0x48/0x280
[  328.718229]  ? __lock_is_held+0xb5/0x140
[  328.722294]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.727836]  ? check_preemption_disabled+0x48/0x280
[  328.732875]  run_timer_softirq+0x52/0xb0
[  328.736956]  ? rcu_read_lock_sched_held+0x14f/0x180
[  328.741979]  __do_softirq+0x308/0xb7e
[  328.745802]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  328.750722]  ? lock_downgrade+0x900/0x900
[  328.754879]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  328.759999]  ? pvclock_read_flags+0x160/0x160
[  328.764502]  ? lapic_next_event+0x5a/0x90
[  328.768659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.774210]  ? kvm_clock_read+0x18/0x30
[  328.778192]  ? kvm_sched_clock_read+0x9/0x20
[  328.782618]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  328.788169]  ? check_preemption_disabled+0x48/0x280
[  328.793198]  irq_exit+0x17f/0x1c0
[  328.796661]  smp_apic_timer_interrupt+0x1cb/0x760
[  328.801511]  ? smp_call_function_single_interrupt+0x650/0x650
[  328.807403]  ? interrupt_entry+0xb5/0xc0
[  328.811493]  ? trace_hardirqs_off_caller+0xbb/0x310
[  328.816510]  ? trace_hardirqs_off_caller+0xbb/0x310
[  328.821540]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.826387]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.831409]  ? trace_hardirqs_on_caller+0x310/0x310
[  328.836432]  ? task_prio+0x50/0x50
[  328.839977]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  328.845519]  ? check_preemption_disabled+0x48/0x280
[  328.850545]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  328.855408]  apic_timer_interrupt+0xf/0x20
[  328.859645]  </IRQ>
[  328.861903] RIP: 0010:dump_stack+0x358/0x39d
[  328.866335] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  328.885255] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  328.892975] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  328.900250] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  328.907525] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  328.914799] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  328.922070] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  328.929390]  ? dump_stack+0x34f/0x39d
[  328.933223]  ? dump_stack_print_info.cold.1+0x20/0x20
[  328.938423]  ? mark_held_locks+0x130/0x130
[  328.942662]  ? mark_held_locks+0x130/0x130
[  328.946908]  dump_header+0x27b/0xf72
[  328.950642]  ? pagefault_out_of_memory+0x197/0x197
[  328.955583]  ? __lock_acquire+0x62f/0x4c20
[  328.959825]  ? percpu_ref_get_many+0x240/0x240
[  328.964416]  ? print_usage_bug+0xc0/0xc0
[  328.968483]  ? zap_class+0x640/0x640
[  328.972201]  ? print_usage_bug+0xc0/0xc0
[  328.976261]  ? print_usage_bug+0xc0/0xc0
[  328.980324]  ? zap_class+0x640/0x640
[  328.984054]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  328.989603]  ? find_held_lock+0x36/0x1c0
[  328.993675]  ? mark_held_locks+0xc7/0x130
[  328.997839]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  329.002947]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  329.008062]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  329.012650]  ? trace_hardirqs_on+0xbd/0x310
[  329.016976]  ? kasan_check_read+0x11/0x20
[  329.021132]  ? ___ratelimit+0x3b4/0x672
[  329.025113]  ? trace_hardirqs_off_caller+0x310/0x310
[  329.030243]  ? trace_hardirqs_on+0x310/0x310
[  329.034656]  ? lock_downgrade+0x900/0x900
[  329.038824]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  329.043933]  ? ___ratelimit+0x3b9/0x672
[  329.047920]  ? idr_get_free+0xf70/0xf70
[  329.051902]  ? find_held_lock+0x36/0x1c0
[  329.055985]  oom_kill_process.cold.27+0x10/0x903
[  329.060745]  ? zap_class+0x640/0x640
[  329.064463]  ? check_preemption_disabled+0x48/0x280
[  329.069491]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.074424]  ? kasan_check_read+0x11/0x20
[  329.078573]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.083858]  ? oom_evaluate_task+0x540/0x540
[  329.088276]  ? find_held_lock+0x36/0x1c0
[  329.092361]  ? out_of_memory+0x974/0x1430
[  329.096537]  ? lock_downgrade+0x900/0x900
[  329.100694]  ? check_preemption_disabled+0x48/0x280
[  329.105722]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.110673]  ? kasan_check_read+0x11/0x20
[  329.114821]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.120102]  ? rcu_softirq_qs+0x20/0x20
[  329.124084]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.129632]  ? oom_evaluate_task+0x302/0x540
[  329.134055]  out_of_memory+0xa84/0x1430
[  329.138048]  ? oom_killer_disable+0x3a0/0x3a0
[  329.142547]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  329.147486]  ? __ww_mutex_check_waiters+0x160/0x160
[  329.152519]  __alloc_pages_slowpath+0x2354/0x2e10
[  329.157394]  ? warn_alloc+0x120/0x120
[  329.161211]  ? mark_held_locks+0x130/0x130
[  329.165453]  ? find_get_entry+0xaae/0x1120
[  329.169709]  ? filemap_map_pages+0x1a20/0x1a20
[  329.174304]  ? zap_class+0x640/0x640
[  329.178029]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  329.183580]  ? check_preemption_disabled+0x48/0x280
[  329.188599]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.194146]  ? should_fail+0x22d/0xd01
[  329.198048]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  329.203185]  ? zap_class+0x640/0x640
[  329.206945]  ? __lock_is_held+0xb5/0x140
[  329.211018]  ? mark_held_locks+0x130/0x130
[  329.215264]  ? lock_release+0xa00/0xa00
[  329.219238]  ? perf_trace_sched_process_exec+0x860/0x860
[  329.224692]  ? xa_load+0x2ba/0x460
[  329.228239]  ? lock_downgrade+0x900/0x900
[  329.232399]  ? __might_sleep+0x95/0x190
[  329.236382]  __alloc_pages_nodemask+0xa80/0xde0
[  329.241069]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  329.246090]  ? __page_cache_alloc+0x191/0x5c0
[  329.250597]  ? xa_load+0x2e1/0x460
[  329.254141]  ? xa_clear_mark+0x40/0x40
[  329.258043]  ? zap_class+0x640/0x640
[  329.261766]  ? zap_class+0x640/0x640
[  329.265478]  ? zap_class+0x640/0x640
[  329.269197]  ? __do_page_cache_readahead+0x663/0x810
[  329.274315]  ? find_held_lock+0x36/0x1c0
[  329.278388]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  329.283946]  alloc_pages_current+0x173/0x350
[  329.288365]  __page_cache_alloc+0x38c/0x5c0
[  329.292692]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.297639]  ? kasan_check_read+0x11/0x20
[  329.301788]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.307075]  ? generic_perform_write+0x6a0/0x6a0
[  329.311835]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.317381]  ? check_preemption_disabled+0x48/0x280
[  329.322412]  filemap_fault+0x1595/0x25f0
[  329.326488]  ? __lock_page_or_retry+0xa00/0xa00
[  329.331166]  ? mark_held_locks+0x130/0x130
[  329.335414]  ? filemap_map_pages+0xd6b/0x1a20
[  329.339913]  ? lock_downgrade+0x900/0x900
[  329.344089]  ? check_preemption_disabled+0x48/0x280
[  329.349112]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.354051]  ? kasan_check_read+0x11/0x20
[  329.358200]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.363481]  ? rcu_softirq_qs+0x20/0x20
[  329.367471]  ? filemap_map_pages+0xd92/0x1a20
[  329.371987]  ? find_get_entries_tag+0x1400/0x1400
[  329.376834]  ? find_held_lock+0x36/0x1c0
[  329.380917]  ? lock_acquire+0x1ed/0x520
[  329.384904]  ? ext4_filemap_fault+0x7a/0xad
[  329.389244]  ? lock_release+0xa00/0xa00
[  329.393216]  ? perf_trace_sched_process_exec+0x860/0x860
[  329.398673]  ? print_usage_bug+0xc0/0xc0
[  329.402735]  ? print_usage_bug+0xc0/0xc0
[  329.406819]  ? down_read+0x8d/0x120
[  329.410447]  ? ext4_filemap_fault+0x7a/0xad
[  329.414782]  ? __down_interruptible+0x700/0x700
[  329.419463]  ext4_filemap_fault+0x82/0xad
[  329.423629]  __do_fault+0x100/0x6b0
[  329.427262]  ? find_held_lock+0x36/0x1c0
[  329.431370]  ? pmd_devmap_trans_unstable+0x220/0x220
[  329.436479]  ? mark_held_locks+0x130/0x130
[  329.440720]  ? mark_held_locks+0x130/0x130
[  329.444973]  ? kasan_check_read+0x11/0x20
[  329.449126]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.454670]  __handle_mm_fault+0x3ea0/0x5be0
[  329.459094]  ? perf_trace_lock+0x7a0/0x7a0
[  329.463340]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  329.468203]  ? __switch_to_asm+0x34/0x70
[  329.472288]  ? __switch_to_asm+0x34/0x70
[  329.476361]  ? zap_class+0x640/0x640
[  329.480074]  ? zap_class+0x640/0x640
[  329.483785]  ? __x64_sys_futex+0x53e/0x6a0
[  329.488026]  ? find_held_lock+0x36/0x1c0
[  329.492114]  ? handle_mm_fault+0x42a/0xc70
[  329.496349]  ? lock_downgrade+0x900/0x900
[  329.500508]  ? check_preemption_disabled+0x48/0x280
[  329.505527]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  329.510461]  ? kasan_check_read+0x11/0x20
[  329.514610]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  329.519887]  ? rcu_softirq_qs+0x20/0x20
[  329.523862]  ? trace_hardirqs_off_caller+0x310/0x310
[  329.528979]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.534517]  ? check_preemption_disabled+0x48/0x280
[  329.539542]  handle_mm_fault+0x54f/0xc70
[  329.543608]  ? __handle_mm_fault+0x5be0/0x5be0
[  329.548225]  ? find_vma+0x34/0x190
[  329.551785]  __do_page_fault+0x5e8/0xe60
[  329.555846]  ? trace_hardirqs_off+0xb8/0x310
[  329.560264]  do_page_fault+0xf2/0x7e0
[  329.564071]  ? vmalloc_sync_all+0x30/0x30
[  329.568224]  ? error_entry+0x70/0xd0
[  329.571951]  ? trace_hardirqs_off_caller+0xbb/0x310
[  329.576971]  ? trace_hardirqs_on_caller+0xc0/0x310
[  329.581902]  ? syscall_return_slowpath+0x5e0/0x5e0
[  329.586836]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  329.591681]  ? trace_hardirqs_on_caller+0x310/0x310
[  329.596709]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  329.602191]  ? prepare_exit_to_usermode+0x291/0x3b0
[  329.607215]  ? page_fault+0x8/0x30
[  329.610761]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  329.615606]  ? page_fault+0x8/0x30
[  329.619157]  page_fault+0x1e/0x30
[  329.622623] RIP: 0033:0x44b69a
[  329.625827] Code: Bad RIP value.
[  329.629189] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  329.634549] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  329.641820] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  329.649084] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  329.656362] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  329.663663] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  329.670973] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  329.670979] warn_alloc_show_mem: 1 callbacks suppressed
[  329.670985] Mem-Info:
[  329.678180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  329.683552] active_anon:47227 inactive_anon:190 isolated_anon:0
[  329.683552]  active_file:11 inactive_file:14 isolated_file:0
[  329.683552]  unevictable:0 dirty:0 writeback:0 unstable:0
[  329.683552]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  329.683552]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  329.683552]  free:13756 free_pcp:235 free_cma:0
[  329.685923] Call Trace:
[  329.695322] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  329.728175]  <IRQ>
[  329.730748] 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
[  329.758262]  dump_stack+0x244/0x39d
[  329.760388] lowmem_reserve[]: 0 2818 6321 6321
[  329.786514]  ? dump_stack_print_info.cold.1+0x20/0x20
[  329.790138] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  329.794722]  warn_alloc.cold.116+0xb7/0x1bd
[  329.799871] lowmem_reserve[]: 0 0 3503 3503
[  329.827205]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  329.831498] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  329.835822]  ? lock_downgrade+0x900/0x900
[  329.840637] lowmem_reserve[]: 0 0 0 0
[  329.869625]  ? trace_hardirqs_off+0xb8/0x310
[  329.873764] 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
[  329.877619]  ? trace_hardirqs_off+0xb8/0x310
[  329.882175] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  329.895707]  __alloc_pages_slowpath+0x26e8/0x2e10
[  329.900085] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  329.915368]  ? warn_alloc+0x120/0x120
[  329.920168] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  329.935248]  ? print_usage_bug+0xc0/0xc0
[  329.939029] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  329.947856]  ? warn_alloc+0x120/0x120
[  329.951892] 269 total pagecache pages
[  329.960477]  ? warn_alloc+0x120/0x120
[  329.964269] 0 pages in swap cache
[  329.968067]  ? print_usage_bug+0xc0/0xc0
[  329.971843] Swap cache stats: add 0, delete 0, find 0/0
[  329.975288]  ? print_usage_bug+0xc0/0xc0
[  329.979321] Free swap  = 0kB
[  329.984690]  ? __lock_acquire+0x62f/0x4c20
[  329.988727] Total swap = 0kB
[  329.991740]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  329.995972] 1965979 pages RAM
[  329.998989]  ? should_fail+0x22d/0xd01
[  330.004498] 0 pages HighMem/MovableOnly
[  330.007603]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  330.011479] 342853 pages reserved
[  330.015448]  ? __lock_acquire+0x62f/0x4c20
[  330.020524] 0 pages cma reserved
[  330.023979]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  330.028266] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  330.031555]  ? __lock_acquire+0x62f/0x4c20
[  330.031572]  ? should_fail+0x22d/0xd01
[  330.036758] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  330.043144]  ? find_held_lock+0x36/0x1c0
[  330.047352] syz-fuzzer cpuset=/ mems_allowed=0
[  330.051244]  ? mark_held_locks+0x130/0x130
[  330.074296]  ? mark_held_locks+0x130/0x130
[  330.078532]  ? zap_class+0x640/0x640
[  330.082255]  ? zap_class+0x640/0x640
[  330.085983]  ? print_usage_bug+0xc0/0xc0
[  330.090040]  ? do_raw_spin_unlock+0xa7/0x330
[  330.094449]  ? zap_class+0x640/0x640
[  330.098164]  ? print_usage_bug+0xc0/0xc0
[  330.102239]  ? wq_watchdog_touch+0x9c/0xfe
[  330.106493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.112044]  ? check_preemption_disabled+0x48/0x280
[  330.117073]  ? __lock_is_held+0xb5/0x140
[  330.121143]  __alloc_pages_nodemask+0xa80/0xde0
[  330.125815]  ? zap_class+0x640/0x640
[  330.129544]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  330.134577]  ? find_held_lock+0x36/0x1c0
[  330.138656]  ? ____cache_alloc_node+0x1c7/0x1e0
[  330.143331]  ? lock_downgrade+0x900/0x900
[  330.147495]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.153043]  cache_grow_begin+0xa5/0x8c0
[  330.157123]  ? do_raw_spin_unlock+0xa7/0x330
[  330.161553]  fallback_alloc+0x204/0x2e0
[  330.165546]  ____cache_alloc_node+0x1c7/0x1e0
[  330.170053]  kmem_cache_alloc_node+0xe3/0x730
[  330.174562]  ? ipv6_get_ifaddr+0x42e/0x620
[  330.178817]  __alloc_skb+0x119/0x770
[  330.182535]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  330.187829]  ? netdev_alloc_frag+0x1f0/0x1f0
[  330.192245]  ? lock_downgrade+0x900/0x900
[  330.196410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.201963]  ? refcount_sub_and_test_checked+0x203/0x310
[  330.207423]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  330.212877]  ? addrconf_rs_timer+0x690/0x690
[  330.217301]  ndisc_alloc_skb+0x144/0x340
[  330.221370]  ndisc_send_rs+0x331/0x6e0
[  330.225268]  addrconf_rs_timer+0x314/0x690
[  330.229510]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.233779]  call_timer_fn+0x272/0x920
[  330.237668]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.241905]  ? process_timeout+0x40/0x40
[  330.245988]  ? __run_timers+0x7da/0xc70
[  330.249972]  ? _raw_spin_unlock_irq+0x27/0x80
[  330.254468]  ? _raw_spin_unlock_irq+0x27/0x80
[  330.258982]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.263222]  ? lockdep_hardirqs_on+0x296/0x5b0
[  330.267812]  ? trace_hardirqs_on+0xbd/0x310
[  330.272138]  ? kasan_check_read+0x11/0x20
[  330.276285]  ? __run_timers+0x7da/0xc70
[  330.280277]  ? trace_hardirqs_off_caller+0x310/0x310
[  330.285388]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.289632]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  330.293868]  __run_timers+0x7e5/0xc70
[  330.297681]  ? timer_fixup_init+0x70/0x70
[  330.301835]  ? lock_acquire+0x1ed/0x520
[  330.305809]  ? zap_class+0x640/0x640
[  330.309526]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.315082]  ? kasan_check_read+0x11/0x20
[  330.319234]  ? do_raw_spin_lock+0x14f/0x350
[  330.323572]  ? find_held_lock+0x36/0x1c0
[  330.327642]  ? zap_class+0x640/0x640
[  330.331364]  ? pvclock_read_flags+0x160/0x160
[  330.335882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.341426]  ? check_preemption_disabled+0x48/0x280
[  330.346456]  ? __lock_is_held+0xb5/0x140
[  330.350525]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.356073]  ? check_preemption_disabled+0x48/0x280
[  330.361112]  run_timer_softirq+0x52/0xb0
[  330.365177]  ? rcu_read_lock_sched_held+0x14f/0x180
[  330.370199]  __do_softirq+0x308/0xb7e
[  330.374013]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  330.378513]  ? lock_downgrade+0x900/0x900
[  330.382697]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  330.387842]  ? pvclock_read_flags+0x160/0x160
[  330.392356]  ? lapic_next_event+0x5a/0x90
[  330.396509]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.402062]  ? kvm_clock_read+0x18/0x30
[  330.406040]  ? kvm_sched_clock_read+0x9/0x20
[  330.410453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.415998]  ? check_preemption_disabled+0x48/0x280
[  330.421024]  irq_exit+0x17f/0x1c0
[  330.424489]  smp_apic_timer_interrupt+0x1cb/0x760
[  330.429334]  ? smp_call_function_single_interrupt+0x159/0x650
[  330.435250]  ? smp_call_function_single_interrupt+0x650/0x650
[  330.441136]  ? interrupt_entry+0xb5/0xc0
[  330.445202]  ? trace_hardirqs_off_caller+0xbb/0x310
[  330.450220]  ? trace_hardirqs_off_caller+0xbb/0x310
[  330.455244]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  330.460100]  ? trace_hardirqs_on_caller+0x310/0x310
[  330.465123]  ? trace_hardirqs_on_caller+0x310/0x310
[  330.470154]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  330.475012]  apic_timer_interrupt+0xf/0x20
[  330.479246]  </IRQ>
[  330.481489] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  330.486421] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  330.505344] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  330.513059] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  330.520344] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  330.527620] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  330.534894] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  330.542170] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  330.549492]  skb_clone+0x1bb/0x500
[  330.553053]  ? skb_split+0x11e0/0x11e0
[  330.556968]  ? check_preemption_disabled+0x48/0x280
[  330.561997]  ? __this_cpu_preempt_check+0x1c/0x20
[  330.566847]  ? __bpf_redirect+0x54b/0xb20
[  330.571006]  bpf_clone_redirect+0xb9/0x490
[  330.575257]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  330.580281]  ? __sched_text_start+0x8/0x8
[  330.584453]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  330.589226]  ? find_held_lock+0x36/0x1c0
[  330.593300]  ? lock_acquire+0x1ed/0x520
[  330.597278]  ? bpf_test_run+0x3cb/0x780
[  330.601260]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.606807]  ? check_preemption_disabled+0x48/0x280
[  330.611836]  ? kasan_check_read+0x11/0x20
[  330.615989]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  330.621290]  ? rcu_softirq_qs+0x20/0x20
[  330.625273]  ? preempt_schedule+0x4d/0x60
[  330.629429]  ? ___preempt_schedule+0x16/0x18
[  330.633851]  ? bpf_test_run+0x25d/0x780
[  330.637841]  ? netlink_diag_dump+0x2a0/0x2a0
[  330.642258]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  330.647025]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  330.651794]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  330.656642]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  330.662188]  ? fput+0x130/0x1a0
[  330.665474]  ? __bpf_prog_get+0x9b/0x290
[  330.669546]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  330.674394]  ? bpf_prog_test_run+0x130/0x1a0
[  330.678812]  ? __x64_sys_bpf+0x3d8/0x520
[  330.682876]  ? bpf_prog_get+0x20/0x20
[  330.686699]  ? do_syscall_64+0x1b9/0x820
[  330.690767]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  330.696138]  ? syscall_return_slowpath+0x5e0/0x5e0
[  330.701075]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  330.705933]  ? trace_hardirqs_on_caller+0x310/0x310
[  330.710977]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  330.716004]  ? prepare_exit_to_usermode+0x291/0x3b0
[  330.721042]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  330.725897]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  330.731283] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  330.731372] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  330.738221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  330.738226] Call Trace:
[  330.738234]  <IRQ>
[  330.738254]  dump_stack+0x244/0x39d
[  330.738271]  ? dump_stack_print_info.cold.1+0x20/0x20
[  330.738298]  warn_alloc.cold.116+0xb7/0x1bd
[  330.744894] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  330.754554]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  330.757126] syz-executor4 cpuset=syz4 mems_allowed=0
[  330.759273]  ? lock_downgrade+0x900/0x900
[  330.796909]  ? trace_hardirqs_off+0xb8/0x310
[  330.801359]  ? trace_hardirqs_off+0xb8/0x310
[  330.805782]  __alloc_pages_slowpath+0x26e8/0x2e10
[  330.810659]  ? warn_alloc+0x120/0x120
[  330.814465]  ? print_usage_bug+0xc0/0xc0
[  330.818530]  ? warn_alloc+0x120/0x120
[  330.822340]  ? warn_alloc+0x120/0x120
[  330.826145]  ? print_usage_bug+0xc0/0xc0
[  330.830228]  ? kvm_clock_read+0x18/0x30
[  330.834205]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  330.839226]  ? print_usage_bug+0xc0/0xc0
[  330.843290]  ? __lock_acquire+0x62f/0x4c20
[  330.847536]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  330.853830]  ? should_fail+0x22d/0xd01
[  330.857722]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  330.863002]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  330.868108]  ? __lock_acquire+0x62f/0x4c20
[  330.872351]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  330.877455]  ? __lock_acquire+0x62f/0x4c20
[  330.881692]  ? should_fail+0x22d/0xd01
[  330.885581]  ? rcu_irq_exit+0x1a2/0x390
[  330.889570]  ? mark_held_locks+0x130/0x130
[  330.893811]  ? mark_held_locks+0x130/0x130
[  330.898058]  ? mark_held_locks+0xc7/0x130
[  330.902215]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  330.907237]  ? zap_class+0x640/0x640
[  330.910974]  ? print_usage_bug+0xc0/0xc0
[  330.915058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.920604]  ? check_preemption_disabled+0x48/0x280
[  330.925637]  ? __lock_is_held+0xb5/0x140
[  330.929709]  __alloc_pages_nodemask+0xa80/0xde0
[  330.934384]  ? zap_class+0x640/0x640
[  330.938110]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  330.943143]  ? find_held_lock+0x36/0x1c0
[  330.947220]  ? ____cache_alloc_node+0x1c7/0x1e0
[  330.951893]  ? lock_downgrade+0x900/0x900
[  330.956070]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  330.961615]  cache_grow_begin+0xa5/0x8c0
[  330.965680]  ? do_raw_spin_unlock+0xa7/0x330
[  330.970109]  fallback_alloc+0x204/0x2e0
[  330.974094]  ____cache_alloc_node+0x1c7/0x1e0
[  330.978595]  kmem_cache_alloc_node+0xe3/0x730
[  330.983111]  ? ipv6_get_ifaddr+0x42e/0x620
[  330.987364]  __alloc_skb+0x119/0x770
[  330.991083]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  330.996380]  ? netdev_alloc_frag+0x1f0/0x1f0
[  331.000793]  ? lock_downgrade+0x900/0x900
[  331.004958]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.010503]  ? refcount_sub_and_test_checked+0x203/0x310
[  331.015971]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  331.021427]  ? addrconf_rs_timer+0x690/0x690
[  331.025850]  ndisc_alloc_skb+0x144/0x340
[  331.029917]  ndisc_send_rs+0x331/0x6e0
[  331.033820]  addrconf_rs_timer+0x314/0x690
[  331.038068]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.042318]  call_timer_fn+0x272/0x920
[  331.046208]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.050444]  ? process_timeout+0x40/0x40
[  331.054524]  ? mark_held_locks+0xc7/0x130
[  331.058676]  ? _raw_spin_unlock_irq+0x27/0x80
[  331.063177]  ? _raw_spin_unlock_irq+0x27/0x80
[  331.067674]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.071930]  ? lockdep_hardirqs_on+0x296/0x5b0
[  331.076524]  ? trace_hardirqs_on+0xbd/0x310
[  331.080849]  ? kasan_check_read+0x11/0x20
[  331.084999]  ? __run_timers+0x7da/0xc70
[  331.089009]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.094123]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.098365]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  331.102601]  __run_timers+0x7e5/0xc70
[  331.106414]  ? timer_fixup_init+0x70/0x70
[  331.110572]  ? kasan_check_read+0x11/0x20
[  331.114720]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  331.120001]  ? rcu_softirq_qs+0x20/0x20
[  331.123984]  ? mark_held_locks+0xc7/0x130
[  331.128144]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  331.132907]  ? retint_kernel+0x2d/0x2d
[  331.136806]  ? trace_hardirqs_on_caller+0xc0/0x310
[  331.141743]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  331.146507]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  331.151973]  ? zap_class+0x640/0x640
[  331.155699]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.161244]  ? check_preemption_disabled+0x48/0x280
[  331.166279]  ? __lock_is_held+0xb5/0x140
[  331.170348]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.175892]  ? check_preemption_disabled+0x48/0x280
[  331.180919]  run_timer_softirq+0x52/0xb0
[  331.184999]  ? rcu_read_lock_sched_held+0x14f/0x180
[  331.190023]  __do_softirq+0x308/0xb7e
[  331.193835]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  331.198333]  ? lock_downgrade+0x900/0x900
[  331.202492]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  331.207610]  ? pvclock_read_flags+0x160/0x160
[  331.212116]  ? lapic_next_event+0x5a/0x90
[  331.216271]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.221815]  ? kvm_clock_read+0x18/0x30
[  331.225800]  ? kvm_sched_clock_read+0x9/0x20
[  331.230215]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.235763]  ? check_preemption_disabled+0x48/0x280
[  331.240796]  irq_exit+0x17f/0x1c0
[  331.244262]  smp_apic_timer_interrupt+0x1cb/0x760
[  331.249111]  ? smp_call_function_single_interrupt+0x650/0x650
[  331.255003]  ? interrupt_entry+0xb5/0xc0
[  331.259075]  ? trace_hardirqs_off_caller+0xbb/0x310
[  331.264092]  ? trace_hardirqs_off_caller+0xbb/0x310
[  331.269118]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  331.273971]  ? trace_hardirqs_on_caller+0x310/0x310
[  331.278994]  ? trace_hardirqs_on_caller+0x310/0x310
[  331.284016]  ? task_prio+0x50/0x50
[  331.287564]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.293107]  ? check_preemption_disabled+0x48/0x280
[  331.298133]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  331.302991]  apic_timer_interrupt+0xf/0x20
[  331.307220]  </IRQ>
[  331.309462] RIP: 0010:dump_stack+0x358/0x39d
[  331.313878] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  331.332799] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  331.340518] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  331.347793] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  331.355074] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  331.362371] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  331.369652] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  331.376961]  ? dump_stack+0x34f/0x39d
[  331.380780]  ? dump_stack_print_info.cold.1+0x20/0x20
[  331.385981]  ? mark_held_locks+0x130/0x130
[  331.390220]  ? mark_held_locks+0x130/0x130
[  331.394465]  dump_header+0x27b/0xf72
[  331.398193]  ? pagefault_out_of_memory+0x197/0x197
[  331.403136]  ? __lock_acquire+0x62f/0x4c20
[  331.407382]  ? percpu_ref_get_many+0x240/0x240
[  331.411975]  ? print_usage_bug+0xc0/0xc0
[  331.416050]  ? zap_class+0x640/0x640
[  331.419769]  ? print_usage_bug+0xc0/0xc0
[  331.423829]  ? print_usage_bug+0xc0/0xc0
[  331.427892]  ? zap_class+0x640/0x640
[  331.431616]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.437166]  ? find_held_lock+0x36/0x1c0
[  331.441245]  ? mark_held_locks+0xc7/0x130
[  331.445399]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  331.450500]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  331.455606]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  331.460195]  ? trace_hardirqs_on+0xbd/0x310
[  331.464519]  ? kasan_check_read+0x11/0x20
[  331.468671]  ? ___ratelimit+0x3b4/0x672
[  331.472651]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.477760]  ? trace_hardirqs_on+0x310/0x310
[  331.482186]  ? lock_downgrade+0x900/0x900
[  331.486341]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  331.491449]  ? ___ratelimit+0x3b9/0x672
[  331.495436]  ? idr_get_free+0xf70/0xf70
[  331.499415]  ? find_held_lock+0x36/0x1c0
[  331.503493]  oom_kill_process.cold.27+0x10/0x903
[  331.508252]  ? zap_class+0x640/0x640
[  331.511973]  ? check_preemption_disabled+0x48/0x280
[  331.516998]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  331.521929]  ? kasan_check_read+0x11/0x20
[  331.526086]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  331.531368]  ? oom_evaluate_task+0x540/0x540
[  331.535787]  ? find_held_lock+0x36/0x1c0
[  331.539857]  ? out_of_memory+0x974/0x1430
[  331.544008]  ? lock_downgrade+0x900/0x900
[  331.548164]  ? check_preemption_disabled+0x48/0x280
[  331.553184]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  331.558121]  ? kasan_check_read+0x11/0x20
[  331.562273]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  331.567551]  ? rcu_softirq_qs+0x20/0x20
[  331.571536]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.577079]  ? oom_evaluate_task+0x302/0x540
[  331.581493]  out_of_memory+0xa84/0x1430
[  331.585481]  ? oom_killer_disable+0x3a0/0x3a0
[  331.589979]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  331.594919]  ? __ww_mutex_check_waiters+0x160/0x160
[  331.599964]  __alloc_pages_slowpath+0x2354/0x2e10
[  331.604839]  ? warn_alloc+0x120/0x120
[  331.608642]  ? mark_held_locks+0x130/0x130
[  331.612885]  ? find_get_entry+0xaae/0x1120
[  331.617134]  ? filemap_map_pages+0x1a20/0x1a20
[  331.621749]  ? zap_class+0x640/0x640
[  331.625471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  331.631012]  ? check_preemption_disabled+0x48/0x280
[  331.636045]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.641590]  ? should_fail+0x22d/0xd01
[  331.645485]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  331.650595]  ? zap_class+0x640/0x640
[  331.654342]  ? __lock_is_held+0xb5/0x140
[  331.658413]  ? mark_held_locks+0x130/0x130
[  331.662658]  ? lock_release+0xa00/0xa00
[  331.666638]  ? perf_trace_sched_process_exec+0x860/0x860
[  331.672108]  ? xa_load+0x2ba/0x460
[  331.675658]  ? lock_downgrade+0x900/0x900
[  331.679815]  ? __might_sleep+0x95/0x190
[  331.683799]  __alloc_pages_nodemask+0xa80/0xde0
[  331.688482]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  331.693505]  ? __page_cache_alloc+0x191/0x5c0
[  331.698004]  ? xa_load+0x2e1/0x460
[  331.701546]  ? xa_clear_mark+0x40/0x40
[  331.705440]  ? zap_class+0x640/0x640
[  331.709168]  ? zap_class+0x640/0x640
[  331.712899]  ? zap_class+0x640/0x640
[  331.716621]  ? __do_page_cache_readahead+0x663/0x810
[  331.721735]  ? find_held_lock+0x36/0x1c0
[  331.725812]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  331.731364]  alloc_pages_current+0x173/0x350
[  331.735785]  __page_cache_alloc+0x38c/0x5c0
[  331.740109]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  331.745052]  ? kasan_check_read+0x11/0x20
[  331.749208]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  331.754863]  ? generic_perform_write+0x6a0/0x6a0
[  331.759627]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.765169]  ? check_preemption_disabled+0x48/0x280
[  331.770198]  filemap_fault+0x1595/0x25f0
[  331.774280]  ? __lock_page_or_retry+0xa00/0xa00
[  331.778964]  ? mark_held_locks+0x130/0x130
[  331.783212]  ? filemap_map_pages+0xd6b/0x1a20
[  331.787711]  ? lock_downgrade+0x900/0x900
[  331.791866]  ? check_preemption_disabled+0x48/0x280
[  331.796890]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  331.801843]  ? kasan_check_read+0x11/0x20
[  331.806011]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  331.811298]  ? rcu_softirq_qs+0x20/0x20
[  331.815291]  ? filemap_map_pages+0xd92/0x1a20
[  331.819807]  ? find_get_entries_tag+0x1400/0x1400
[  331.824666]  ? find_held_lock+0x36/0x1c0
[  331.828770]  ? lock_acquire+0x1ed/0x520
[  331.832745]  ? ext4_filemap_fault+0x7a/0xad
[  331.837077]  ? lock_release+0xa00/0xa00
[  331.841058]  ? perf_trace_sched_process_exec+0x860/0x860
[  331.846515]  ? print_usage_bug+0xc0/0xc0
[  331.850580]  ? print_usage_bug+0xc0/0xc0
[  331.854659]  ? down_read+0x8d/0x120
[  331.858285]  ? ext4_filemap_fault+0x7a/0xad
[  331.862614]  ? __down_interruptible+0x700/0x700
[  331.867318]  ext4_filemap_fault+0x82/0xad
[  331.871480]  __do_fault+0x100/0x6b0
[  331.875112]  ? find_held_lock+0x36/0x1c0
[  331.879191]  ? pmd_devmap_trans_unstable+0x220/0x220
[  331.884457]  ? mark_held_locks+0x130/0x130
[  331.888695]  ? mark_held_locks+0x130/0x130
[  331.892950]  ? kasan_check_read+0x11/0x20
[  331.897102]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.902652]  __handle_mm_fault+0x3ea0/0x5be0
[  331.907070]  ? perf_trace_lock+0x7a0/0x7a0
[  331.911319]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  331.916176]  ? __switch_to_asm+0x34/0x70
[  331.920255]  ? __switch_to_asm+0x34/0x70
[  331.924333]  ? zap_class+0x640/0x640
[  331.928053]  ? zap_class+0x640/0x640
[  331.931784]  ? __x64_sys_futex+0x53e/0x6a0
[  331.936030]  ? find_held_lock+0x36/0x1c0
[  331.940114]  ? handle_mm_fault+0x42a/0xc70
[  331.944357]  ? lock_downgrade+0x900/0x900
[  331.948518]  ? check_preemption_disabled+0x48/0x280
[  331.953544]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  331.958483]  ? kasan_check_read+0x11/0x20
[  331.962632]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  331.967917]  ? rcu_softirq_qs+0x20/0x20
[  331.971905]  ? trace_hardirqs_off_caller+0x310/0x310
[  331.977022]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  331.982574]  ? check_preemption_disabled+0x48/0x280
[  331.987603]  handle_mm_fault+0x54f/0xc70
[  331.991673]  ? __handle_mm_fault+0x5be0/0x5be0
[  331.996265]  ? find_vma+0x34/0x190
[  331.999821]  __do_page_fault+0x5e8/0xe60
[  332.003894]  ? trace_hardirqs_off+0xb8/0x310
[  332.008318]  do_page_fault+0xf2/0x7e0
[  332.012123]  ? vmalloc_sync_all+0x30/0x30
[  332.016277]  ? error_entry+0x70/0xd0
[  332.020015]  ? trace_hardirqs_off_caller+0xbb/0x310
[  332.025038]  ? trace_hardirqs_on_caller+0xc0/0x310
[  332.029977]  ? syscall_return_slowpath+0x5e0/0x5e0
[  332.034910]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  332.039773]  ? trace_hardirqs_on_caller+0x310/0x310
[  332.044791]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  332.050251]  ? prepare_exit_to_usermode+0x291/0x3b0
[  332.055281]  ? page_fault+0x8/0x30
[  332.058831]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  332.063680]  ? page_fault+0x8/0x30
[  332.067222]  page_fault+0x1e/0x30
[  332.070706] RIP: 0033:0x44b69a
[  332.073922] Code: Bad RIP value.
[  332.077295] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  332.082657] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  332.089928] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  332.097212] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  332.104482] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  332.111753] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  332.119059] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  332.119065] warn_alloc_show_mem: 1 callbacks suppressed
[  332.119072] Mem-Info:
[  332.126285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  332.131663] active_anon:47227 inactive_anon:190 isolated_anon:0
[  332.131663]  active_file:11 inactive_file:14 isolated_file:0
[  332.131663]  unevictable:0 dirty:0 writeback:0 unstable:0
[  332.131663]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  332.131663]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  332.131663]  free:13756 free_pcp:235 free_cma:0
[  332.134041] Call Trace:
[  332.143441] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  332.176313]  <IRQ>
[  332.178894] 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
[  332.206419]  dump_stack+0x244/0x39d
[  332.208544] lowmem_reserve[]: 0 2818 6321 6321
[  332.234729]  ? dump_stack_print_info.cold.1+0x20/0x20
[  332.238339] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  332.242958]  warn_alloc.cold.116+0xb7/0x1bd
[  332.248111] lowmem_reserve[]: 0 0 3503 3503
[  332.275461]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  332.279758] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  332.284099]  ? lock_downgrade+0x900/0x900
[  332.288910] lowmem_reserve[]: 0 0 0 0
[  332.317825]  ? trace_hardirqs_off+0xb8/0x310
[  332.321957] 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
[  332.325763]  ? trace_hardirqs_off+0xb8/0x310
[  332.330143] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  332.343694]  __alloc_pages_slowpath+0x26e8/0x2e10
[  332.348088] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  332.363401]  ? warn_alloc+0x120/0x120
[  332.368210] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  332.383305]  ? print_usage_bug+0xc0/0xc0
[  332.387090] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  332.395922]  ? warn_alloc+0x120/0x120
[  332.399986] 269 total pagecache pages
[  332.408569]  ? warn_alloc+0x120/0x120
[  332.412342] 0 pages in swap cache
[  332.416134]  ? print_usage_bug+0xc0/0xc0
[  332.419898] Swap cache stats: add 0, delete 0, find 0/0
[  332.419908] Free swap  = 0kB
[  332.423362]  ? kvm_clock_read+0x18/0x30
[  332.427392] Total swap = 0kB
[  332.432759]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  332.435750] 1965979 pages RAM
[  332.439736]  ? print_usage_bug+0xc0/0xc0
[  332.442740] 0 pages HighMem/MovableOnly
[  332.442749] 342853 pages reserved
[  332.447777]  ? __lock_acquire+0x62f/0x4c20
[  332.450859] 0 pages cma reserved
[  332.454920]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  332.458975] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  332.462308]  ? should_fail+0x22d/0xd01
[  332.462322]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  332.462340]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  332.466623] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  332.469931]  ? __lock_acquire+0x62f/0x4c20
[  332.475457] syz-fuzzer cpuset=/ mems_allowed=0
[  332.481957]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  332.520311]  ? __lock_acquire+0x62f/0x4c20
[  332.524559]  ? should_fail+0x22d/0xd01
[  332.528452]  ? rcu_irq_exit+0x1a2/0x390
[  332.532448]  ? mark_held_locks+0x130/0x130
[  332.536692]  ? mark_held_locks+0x130/0x130
[  332.540954]  ? mark_held_locks+0xc7/0x130
[  332.545110]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  332.550138]  ? zap_class+0x640/0x640
[  332.553856]  ? print_usage_bug+0xc0/0xc0
[  332.557928]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.563485]  ? check_preemption_disabled+0x48/0x280
[  332.568521]  ? __lock_is_held+0xb5/0x140
[  332.572596]  __alloc_pages_nodemask+0xa80/0xde0
[  332.577281]  ? zap_class+0x640/0x640
[  332.581008]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  332.586042]  ? find_held_lock+0x36/0x1c0
[  332.590123]  ? ____cache_alloc_node+0x1c7/0x1e0
[  332.594800]  ? lock_downgrade+0x900/0x900
[  332.598970]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.604524]  cache_grow_begin+0xa5/0x8c0
[  332.608598]  ? do_raw_spin_unlock+0xa7/0x330
[  332.613023]  fallback_alloc+0x204/0x2e0
[  332.617012]  ____cache_alloc_node+0x1c7/0x1e0
[  332.621518]  kmem_cache_alloc_node+0xe3/0x730
[  332.626027]  ? ipv6_get_ifaddr+0x42e/0x620
[  332.630281]  __alloc_skb+0x119/0x770
[  332.633997]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  332.639284]  ? netdev_alloc_frag+0x1f0/0x1f0
[  332.643702]  ? lock_downgrade+0x900/0x900
[  332.647863]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.653417]  ? refcount_sub_and_test_checked+0x203/0x310
[  332.658888]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  332.664351]  ? addrconf_rs_timer+0x690/0x690
[  332.668778]  ndisc_alloc_skb+0x144/0x340
[  332.672854]  ndisc_send_rs+0x331/0x6e0
[  332.676752]  addrconf_rs_timer+0x314/0x690
[  332.681001]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  332.685254]  call_timer_fn+0x272/0x920
[  332.689145]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  332.693384]  ? process_timeout+0x40/0x40
[  332.697461]  ? __run_timers+0x7da/0xc70
[  332.701447]  ? _raw_spin_unlock_irq+0x27/0x80
[  332.705992]  ? _raw_spin_unlock_irq+0x27/0x80
[  332.710499]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  332.714743]  ? lockdep_hardirqs_on+0x296/0x5b0
[  332.719337]  ? trace_hardirqs_on+0xbd/0x310
[  332.723670]  ? kasan_check_read+0x11/0x20
[  332.727823]  ? __run_timers+0x7da/0xc70
[  332.731805]  ? trace_hardirqs_off_caller+0x310/0x310
[  332.736927]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  332.741176]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  332.745418]  __run_timers+0x7e5/0xc70
[  332.749235]  ? timer_fixup_init+0x70/0x70
[  332.753583]  ? lock_acquire+0x1ed/0x520
[  332.757565]  ? zap_class+0x640/0x640
[  332.761287]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.766839]  ? kasan_check_read+0x11/0x20
[  332.770990]  ? do_raw_spin_lock+0x14f/0x350
[  332.775325]  ? find_held_lock+0x36/0x1c0
[  332.779401]  ? zap_class+0x640/0x640
[  332.783124]  ? pvclock_read_flags+0x160/0x160
[  332.787627]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.793172]  ? check_preemption_disabled+0x48/0x280
[  332.798204]  ? __lock_is_held+0xb5/0x140
[  332.802274]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.807824]  ? check_preemption_disabled+0x48/0x280
[  332.812851]  run_timer_softirq+0x52/0xb0
[  332.816917]  ? rcu_read_lock_sched_held+0x14f/0x180
[  332.821954]  __do_softirq+0x308/0xb7e
[  332.825766]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  332.830266]  ? lock_downgrade+0x900/0x900
[  332.834427]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  332.839552]  ? pvclock_read_flags+0x160/0x160
[  332.844058]  ? lapic_next_event+0x5a/0x90
[  332.848217]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.853767]  ? kvm_clock_read+0x18/0x30
[  332.857747]  ? kvm_sched_clock_read+0x9/0x20
[  332.862166]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  332.867716]  ? check_preemption_disabled+0x48/0x280
[  332.872753]  irq_exit+0x17f/0x1c0
[  332.876222]  smp_apic_timer_interrupt+0x1cb/0x760
[  332.881089]  ? smp_call_function_single_interrupt+0x159/0x650
[  332.886984]  ? smp_call_function_single_interrupt+0x650/0x650
[  332.892883]  ? interrupt_entry+0xb5/0xc0
[  332.896967]  ? trace_hardirqs_off_caller+0xbb/0x310
[  332.902003]  ? trace_hardirqs_off_caller+0xbb/0x310
[  332.907029]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  332.911887]  ? trace_hardirqs_on_caller+0x310/0x310
[  332.916914]  ? trace_hardirqs_on_caller+0x310/0x310
[  332.921970]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  332.926837]  apic_timer_interrupt+0xf/0x20
[  332.931069]  </IRQ>
[  332.933311] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  332.938250] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  332.957171] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  332.964898] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  332.972185] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  332.979475] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  332.986754] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  332.994036] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  333.001366]  skb_clone+0x1bb/0x500
[  333.004916]  ? skb_split+0x11e0/0x11e0
[  333.008818]  ? check_preemption_disabled+0x48/0x280
[  333.013855]  ? __this_cpu_preempt_check+0x1c/0x20
[  333.018705]  ? __bpf_redirect+0x54b/0xb20
[  333.022867]  bpf_clone_redirect+0xb9/0x490
[  333.027121]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  333.032148]  ? __sched_text_start+0x8/0x8
[  333.036305]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  333.041097]  ? find_held_lock+0x36/0x1c0
[  333.045193]  ? lock_acquire+0x1ed/0x520
[  333.049173]  ? bpf_test_run+0x3cb/0x780
[  333.053153]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.058698]  ? check_preemption_disabled+0x48/0x280
[  333.063733]  ? kasan_check_read+0x11/0x20
[  333.067885]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  333.073180]  ? rcu_softirq_qs+0x20/0x20
[  333.077167]  ? preempt_schedule+0x4d/0x60
[  333.081321]  ? ___preempt_schedule+0x16/0x18
[  333.085748]  ? bpf_test_run+0x25d/0x780
[  333.089772]  ? netlink_diag_dump+0x2a0/0x2a0
[  333.094195]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  333.098969]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  333.103741]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  333.108595]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  333.114142]  ? fput+0x130/0x1a0
[  333.117427]  ? __bpf_prog_get+0x9b/0x290
[  333.121499]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  333.126344]  ? bpf_prog_test_run+0x130/0x1a0
[  333.130759]  ? __x64_sys_bpf+0x3d8/0x520
[  333.134825]  ? bpf_prog_get+0x20/0x20
[  333.138653]  ? do_syscall_64+0x1b9/0x820
[  333.142720]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  333.148096]  ? syscall_return_slowpath+0x5e0/0x5e0
[  333.153040]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  333.157915]  ? trace_hardirqs_on_caller+0x310/0x310
[  333.162969]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  333.167998]  ? prepare_exit_to_usermode+0x291/0x3b0
[  333.173030]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  333.177892]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  333.183279] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  333.183367] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  333.190221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  333.190231] Call Trace:
[  333.196948] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  333.206063]  <IRQ>
[  333.206095]  dump_stack+0x244/0x39d
[  333.208859] syz-executor4 cpuset=syz4 mems_allowed=0
[  333.219353]  ? dump_stack_print_info.cold.1+0x20/0x20
[  333.219382]  warn_alloc.cold.116+0xb7/0x1bd
[  333.239874]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  333.244727]  ? lock_downgrade+0x900/0x900
[  333.248898]  ? trace_hardirqs_off+0xb8/0x310
[  333.253321]  ? trace_hardirqs_off+0xb8/0x310
[  333.257745]  __alloc_pages_slowpath+0x26e8/0x2e10
[  333.262645]  ? warn_alloc+0x120/0x120
[  333.266456]  ? print_usage_bug+0xc0/0xc0
[  333.270526]  ? warn_alloc+0x120/0x120
[  333.274333]  ? warn_alloc+0x120/0x120
[  333.278144]  ? print_usage_bug+0xc0/0xc0
[  333.282211]  ? print_usage_bug+0xc0/0xc0
[  333.286277]  ? __lock_acquire+0x62f/0x4c20
[  333.290524]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  333.296081]  ? should_fail+0x22d/0xd01
[  333.299983]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  333.305092]  ? __lock_acquire+0x62f/0x4c20
[  333.309334]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  333.314443]  ? __lock_acquire+0x62f/0x4c20
[  333.318687]  ? should_fail+0x22d/0xd01
[  333.322577]  ? find_held_lock+0x36/0x1c0
[  333.326660]  ? mark_held_locks+0x130/0x130
[  333.330912]  ? mark_held_locks+0x130/0x130
[  333.335174]  ? zap_class+0x640/0x640
[  333.338892]  ? zap_class+0x640/0x640
[  333.342612]  ? print_usage_bug+0xc0/0xc0
[  333.346675]  ? do_raw_spin_unlock+0xa7/0x330
[  333.351093]  ? zap_class+0x640/0x640
[  333.354808]  ? print_usage_bug+0xc0/0xc0
[  333.358875]  ? wq_watchdog_touch+0x9c/0xfe
[  333.363121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.368679]  ? check_preemption_disabled+0x48/0x280
[  333.373716]  ? __lock_is_held+0xb5/0x140
[  333.377790]  __alloc_pages_nodemask+0xa80/0xde0
[  333.382464]  ? zap_class+0x640/0x640
[  333.386187]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  333.391221]  ? find_held_lock+0x36/0x1c0
[  333.395301]  ? ____cache_alloc_node+0x1c7/0x1e0
[  333.399986]  ? lock_downgrade+0x900/0x900
[  333.404148]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.409704]  cache_grow_begin+0xa5/0x8c0
[  333.413771]  ? do_raw_spin_unlock+0xa7/0x330
[  333.418191]  fallback_alloc+0x204/0x2e0
[  333.422173]  ____cache_alloc_node+0x1c7/0x1e0
[  333.426678]  kmem_cache_alloc_node+0xe3/0x730
[  333.431182]  ? ipv6_get_ifaddr+0x42e/0x620
[  333.435436]  __alloc_skb+0x119/0x770
[  333.439156]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  333.444442]  ? netdev_alloc_frag+0x1f0/0x1f0
[  333.448854]  ? lock_downgrade+0x900/0x900
[  333.453032]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.458592]  ? refcount_sub_and_test_checked+0x203/0x310
[  333.464063]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  333.469540]  ? addrconf_rs_timer+0x690/0x690
[  333.473984]  ndisc_alloc_skb+0x144/0x340
[  333.478071]  ndisc_send_rs+0x331/0x6e0
[  333.481989]  addrconf_rs_timer+0x314/0x690
[  333.486238]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.490492]  call_timer_fn+0x272/0x920
[  333.494386]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.498631]  ? process_timeout+0x40/0x40
[  333.502715]  ? mark_held_locks+0xc7/0x130
[  333.507057]  ? _raw_spin_unlock_irq+0x27/0x80
[  333.511557]  ? _raw_spin_unlock_irq+0x27/0x80
[  333.516069]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.520314]  ? lockdep_hardirqs_on+0x296/0x5b0
[  333.524908]  ? trace_hardirqs_on+0xbd/0x310
[  333.529248]  ? kasan_check_read+0x11/0x20
[  333.533401]  ? __run_timers+0x7da/0xc70
[  333.537383]  ? trace_hardirqs_off_caller+0x310/0x310
[  333.542502]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.546747]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  333.550989]  __run_timers+0x7e5/0xc70
[  333.554809]  ? timer_fixup_init+0x70/0x70
[  333.558970]  ? kasan_check_read+0x11/0x20
[  333.563133]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  333.568413]  ? rcu_softirq_qs+0x20/0x20
[  333.572401]  ? mark_held_locks+0xc7/0x130
[  333.576562]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  333.581326]  ? retint_kernel+0x2d/0x2d
[  333.585216]  ? trace_hardirqs_on_caller+0xc0/0x310
[  333.590165]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  333.594934]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  333.600405]  ? zap_class+0x640/0x640
[  333.604128]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.609672]  ? check_preemption_disabled+0x48/0x280
[  333.614702]  ? __lock_is_held+0xb5/0x140
[  333.618770]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.624312]  ? check_preemption_disabled+0x48/0x280
[  333.629339]  run_timer_softirq+0x52/0xb0
[  333.633410]  ? rcu_read_lock_sched_held+0x14f/0x180
[  333.638432]  __do_softirq+0x308/0xb7e
[  333.642239]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  333.646739]  ? lock_downgrade+0x900/0x900
[  333.650897]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  333.656011]  ? pvclock_read_flags+0x160/0x160
[  333.660523]  ? lapic_next_event+0x5a/0x90
[  333.664675]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.670237]  ? kvm_clock_read+0x18/0x30
[  333.674214]  ? kvm_sched_clock_read+0x9/0x20
[  333.678631]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  333.684174]  ? check_preemption_disabled+0x48/0x280
[  333.689211]  irq_exit+0x17f/0x1c0
[  333.692672]  smp_apic_timer_interrupt+0x1cb/0x760
[  333.697581]  ? smp_call_function_single_interrupt+0x650/0x650
[  333.703478]  ? interrupt_entry+0xb5/0xc0
[  333.707545]  ? trace_hardirqs_off_caller+0xbb/0x310
[  333.712577]  ? trace_hardirqs_off_caller+0xbb/0x310
[  333.717616]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  333.722471]  ? trace_hardirqs_on_caller+0x310/0x310
[  333.727492]  ? trace_hardirqs_on_caller+0x310/0x310
[  333.732517]  ? task_prio+0x50/0x50
[  333.736067]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  333.741614]  ? check_preemption_disabled+0x48/0x280
[  333.746647]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  333.751508]  apic_timer_interrupt+0xf/0x20
[  333.755740]  </IRQ>
[  333.758006] RIP: 0010:dump_stack+0x358/0x39d
[  333.762423] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  333.781351] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  333.789078] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  333.796363] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  333.803640] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  333.810912] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  333.818205] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  333.825515]  ? dump_stack+0x34f/0x39d
[  333.829336]  ? dump_stack_print_info.cold.1+0x20/0x20
[  333.834543]  ? mark_held_locks+0x130/0x130
[  333.838785]  ? mark_held_locks+0x130/0x130
[  333.843033]  dump_header+0x27b/0xf72
[  333.846780]  ? pagefault_out_of_memory+0x197/0x197
[  333.851750]  ? __lock_acquire+0x62f/0x4c20
[  333.855998]  ? percpu_ref_get_many+0x240/0x240
[  333.860594]  ? print_usage_bug+0xc0/0xc0
[  333.864695]  ? zap_class+0x640/0x640
[  333.868466]  ? print_usage_bug+0xc0/0xc0
[  333.872536]  ? print_usage_bug+0xc0/0xc0
[  333.876606]  ? zap_class+0x640/0x640
[  333.880326]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  333.886097]  ? find_held_lock+0x36/0x1c0
[  333.890189]  ? mark_held_locks+0xc7/0x130
[  333.894344]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  333.899453]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  333.904560]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  333.909151]  ? trace_hardirqs_on+0xbd/0x310
[  333.913478]  ? kasan_check_read+0x11/0x20
[  333.917629]  ? ___ratelimit+0x3b4/0x672
[  333.921611]  ? trace_hardirqs_off_caller+0x310/0x310
[  333.926717]  ? trace_hardirqs_on+0x310/0x310
[  333.931131]  ? lock_downgrade+0x900/0x900
[  333.935295]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  333.940406]  ? ___ratelimit+0x3b9/0x672
[  333.944386]  ? idr_get_free+0xf70/0xf70
[  333.948366]  ? find_held_lock+0x36/0x1c0
[  333.952458]  oom_kill_process.cold.27+0x10/0x903
[  333.957228]  ? zap_class+0x640/0x640
[  333.960960]  ? check_preemption_disabled+0x48/0x280
[  333.965984]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  333.970922]  ? kasan_check_read+0x11/0x20
[  333.975086]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  333.980370]  ? oom_evaluate_task+0x540/0x540
[  333.984790]  ? find_held_lock+0x36/0x1c0
[  333.988861]  ? out_of_memory+0x974/0x1430
[  333.993017]  ? lock_downgrade+0x900/0x900
[  333.997179]  ? check_preemption_disabled+0x48/0x280
[  334.002206]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  334.007145]  ? kasan_check_read+0x11/0x20
[  334.011322]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  334.016609]  ? rcu_softirq_qs+0x20/0x20
[  334.020599]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.026157]  ? oom_evaluate_task+0x302/0x540
[  334.030569]  out_of_memory+0xa84/0x1430
[  334.034588]  ? oom_killer_disable+0x3a0/0x3a0
[  334.039089]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  334.044031]  ? __ww_mutex_check_waiters+0x160/0x160
[  334.049078]  __alloc_pages_slowpath+0x2354/0x2e10
[  334.053961]  ? warn_alloc+0x120/0x120
[  334.057764]  ? mark_held_locks+0x130/0x130
[  334.062005]  ? find_get_entry+0xaae/0x1120
[  334.066250]  ? filemap_map_pages+0x1a20/0x1a20
[  334.070843]  ? zap_class+0x640/0x640
[  334.074569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.080111]  ? check_preemption_disabled+0x48/0x280
[  334.085128]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.090666]  ? should_fail+0x22d/0xd01
[  334.094558]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  334.099666]  ? zap_class+0x640/0x640
[  334.103409]  ? __lock_is_held+0xb5/0x140
[  334.107482]  ? mark_held_locks+0x130/0x130
[  334.111719]  ? lock_release+0xa00/0xa00
[  334.115698]  ? perf_trace_sched_process_exec+0x860/0x860
[  334.121168]  ? xa_load+0x2ba/0x460
[  334.124722]  ? lock_downgrade+0x900/0x900
[  334.128880]  ? __might_sleep+0x95/0x190
[  334.132861]  __alloc_pages_nodemask+0xa80/0xde0
[  334.137541]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  334.142563]  ? __page_cache_alloc+0x191/0x5c0
[  334.147065]  ? xa_load+0x2e1/0x460
[  334.150611]  ? xa_clear_mark+0x40/0x40
[  334.154505]  ? zap_class+0x640/0x640
[  334.158229]  ? zap_class+0x640/0x640
[  334.161952]  ? zap_class+0x640/0x640
[  334.165689]  ? __do_page_cache_readahead+0x663/0x810
[  334.170804]  ? find_held_lock+0x36/0x1c0
[  334.174872]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  334.180438]  alloc_pages_current+0x173/0x350
[  334.184856]  __page_cache_alloc+0x38c/0x5c0
[  334.189177]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  334.194112]  ? kasan_check_read+0x11/0x20
[  334.198263]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  334.203566]  ? generic_perform_write+0x6a0/0x6a0
[  334.208327]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.213870]  ? check_preemption_disabled+0x48/0x280
[  334.218922]  filemap_fault+0x1595/0x25f0
[  334.223013]  ? __lock_page_or_retry+0xa00/0xa00
[  334.227698]  ? mark_held_locks+0x130/0x130
[  334.231966]  ? filemap_map_pages+0xd6b/0x1a20
[  334.236468]  ? lock_downgrade+0x900/0x900
[  334.240623]  ? check_preemption_disabled+0x48/0x280
[  334.245649]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  334.250595]  ? kasan_check_read+0x11/0x20
[  334.254743]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  334.260023]  ? rcu_softirq_qs+0x20/0x20
[  334.264018]  ? filemap_map_pages+0xd92/0x1a20
[  334.268533]  ? find_get_entries_tag+0x1400/0x1400
[  334.273390]  ? find_held_lock+0x36/0x1c0
[  334.277473]  ? lock_acquire+0x1ed/0x520
[  334.281474]  ? ext4_filemap_fault+0x7a/0xad
[  334.285803]  ? lock_release+0xa00/0xa00
[  334.289786]  ? perf_trace_sched_process_exec+0x860/0x860
[  334.295239]  ? print_usage_bug+0xc0/0xc0
[  334.299332]  ? print_usage_bug+0xc0/0xc0
[  334.303423]  ? down_read+0x8d/0x120
[  334.307058]  ? ext4_filemap_fault+0x7a/0xad
[  334.311406]  ? __down_interruptible+0x700/0x700
[  334.316089]  ext4_filemap_fault+0x82/0xad
[  334.320244]  __do_fault+0x100/0x6b0
[  334.323870]  ? find_held_lock+0x36/0x1c0
[  334.327958]  ? pmd_devmap_trans_unstable+0x220/0x220
[  334.333071]  ? mark_held_locks+0x130/0x130
[  334.337318]  ? mark_held_locks+0x130/0x130
[  334.341568]  ? kasan_check_read+0x11/0x20
[  334.345724]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.351273]  __handle_mm_fault+0x3ea0/0x5be0
[  334.355714]  ? perf_trace_lock+0x7a0/0x7a0
[  334.359966]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  334.364822]  ? __switch_to_asm+0x34/0x70
[  334.368888]  ? __switch_to_asm+0x34/0x70
[  334.372972]  ? zap_class+0x640/0x640
[  334.376692]  ? zap_class+0x640/0x640
[  334.380409]  ? __x64_sys_futex+0x53e/0x6a0
[  334.384654]  ? find_held_lock+0x36/0x1c0
[  334.388731]  ? handle_mm_fault+0x42a/0xc70
[  334.392988]  ? lock_downgrade+0x900/0x900
[  334.397163]  ? check_preemption_disabled+0x48/0x280
[  334.402234]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  334.407167]  ? kasan_check_read+0x11/0x20
[  334.411312]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  334.416631]  ? rcu_softirq_qs+0x20/0x20
[  334.420636]  ? trace_hardirqs_off_caller+0x310/0x310
[  334.425741]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.431291]  ? check_preemption_disabled+0x48/0x280
[  334.436316]  handle_mm_fault+0x54f/0xc70
[  334.440396]  ? __handle_mm_fault+0x5be0/0x5be0
[  334.444988]  ? find_vma+0x34/0x190
[  334.448539]  __do_page_fault+0x5e8/0xe60
[  334.452602]  ? trace_hardirqs_off+0xb8/0x310
[  334.457029]  do_page_fault+0xf2/0x7e0
[  334.460837]  ? vmalloc_sync_all+0x30/0x30
[  334.465003]  ? error_entry+0x70/0xd0
[  334.468724]  ? trace_hardirqs_off_caller+0xbb/0x310
[  334.473748]  ? trace_hardirqs_on_caller+0xc0/0x310
[  334.478680]  ? syscall_return_slowpath+0x5e0/0x5e0
[  334.483611]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  334.488456]  ? trace_hardirqs_on_caller+0x310/0x310
[  334.493483]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  334.498969]  ? prepare_exit_to_usermode+0x291/0x3b0
[  334.503997]  ? page_fault+0x8/0x30
[  334.507555]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  334.512403]  ? page_fault+0x8/0x30
[  334.515954]  page_fault+0x1e/0x30
[  334.519412] RIP: 0033:0x44b69a
[  334.522623] Code: Bad RIP value.
[  334.525990] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  334.531352] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  334.538627] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  334.545896] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  334.553178] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  334.560447] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  334.567745] warn_alloc_show_mem: 1 callbacks suppressed
[  334.567758] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  334.567760] Mem-Info:
[  334.567793] active_anon:47227 inactive_anon:190 isolated_anon:0
[  334.567793]  active_file:11 inactive_file:14 isolated_file:0
[  334.567793]  unevictable:0 dirty:0 writeback:0 unstable:0
[  334.567793]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  334.567793]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  334.567793]  free:13756 free_pcp:235 free_cma:0
[  334.573147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  334.580350] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  334.582754] Call Trace:
[  334.615636] 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
[  334.625008]  <IRQ>
[  334.652507] lowmem_reserve[]: 0 2818 6321 6321
[  334.655106]  dump_stack+0x244/0x39d
[  334.681198] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  334.683380]  ? dump_stack_print_info.cold.1+0x20/0x20
[  334.687923] lowmem_reserve[]: 0 0 3503 3503
[  334.691585]  warn_alloc.cold.116+0xb7/0x1bd
[  334.718896] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  334.724099]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  334.728378] lowmem_reserve[]: 0 0 0 0
[  334.732712]  ? lock_downgrade+0x900/0x900
[  334.762016] 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
[  334.766881]  ? trace_hardirqs_off+0xb8/0x310
[  334.770657] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  334.774949]  ? trace_hardirqs_off+0xb8/0x310
[  334.788458] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  334.792871]  __alloc_pages_slowpath+0x26e8/0x2e10
[  334.808106] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  334.812571]  ? warn_alloc+0x120/0x120
[  334.827602] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  334.832447]  ? warn_alloc+0x120/0x120
[  334.841253] 269 total pagecache pages
[  334.845051]  ? warn_alloc+0x120/0x120
[  334.853608] 0 pages in swap cache
[  334.857402]  ? print_usage_bug+0xc0/0xc0
[  334.861179] Swap cache stats: add 0, delete 0, find 0/0
[  334.864992]  ? print_usage_bug+0xc0/0xc0
[  334.868424] Free swap  = 0kB
[  334.872482]  ? idle_cpu+0x1d0/0x1d0
[  334.877831] Total swap = 0kB
[  334.877850] 1965979 pages RAM
[  334.882037]  ? kvm_sched_clock_read+0x9/0x20
[  334.882062]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  334.885064] 0 pages HighMem/MovableOnly
[  334.888707]  ? should_fail+0x22d/0xd01
[  334.891723] 342853 pages reserved
[  334.894831]  ? print_usage_bug+0xc0/0xc0
[  334.899216] 0 pages cma reserved
[  334.904992]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  334.909063] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  334.912849]  ? __lock_acquire+0x62f/0x4c20
[  334.912869]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  334.912885]  ? should_fail+0x22d/0xd01
[  334.916385] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  334.920381]  ? mark_held_locks+0x130/0x130
[  334.923735] syz-fuzzer cpuset=/ mems_allowed=0
[  334.928834]  ? mark_held_locks+0x130/0x130
[  334.973216]  ? zap_class+0x640/0x640
[  334.977553]  ? mark_held_locks+0x130/0x130
[  334.982338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  334.988425]  ? check_preemption_disabled+0x48/0x280
[  334.994242]  ? __lock_is_held+0xb5/0x140
[  334.998673]  __alloc_pages_nodemask+0xa80/0xde0
[  335.003607]  ? zap_class+0x640/0x640
[  335.007482]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  335.012510]  ? find_held_lock+0x36/0x1c0
[  335.016591]  ? ____cache_alloc_node+0x1c7/0x1e0
[  335.021285]  ? lock_downgrade+0x900/0x900
[  335.025446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.030994]  cache_grow_begin+0xa5/0x8c0
[  335.035068]  ? do_raw_spin_unlock+0xa7/0x330
[  335.039489]  fallback_alloc+0x204/0x2e0
[  335.043473]  ____cache_alloc_node+0x1c7/0x1e0
[  335.047981]  kmem_cache_alloc_node+0xe3/0x730
[  335.052480]  ? lockdep_hardirqs_on+0x296/0x5b0
[  335.057078]  __alloc_skb+0x119/0x770
[  335.060792]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  335.066164]  ? netdev_alloc_frag+0x1f0/0x1f0
[  335.070584]  ? lock_acquire+0x1ed/0x520
[  335.074566]  ? aoecmd_cfg+0x108/0x7f0
[  335.078370]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.083958]  ? check_preemption_disabled+0x48/0x280
[  335.088990]  ? kasan_check_read+0x11/0x20
[  335.093139]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  335.098416]  ? rcu_softirq_qs+0x20/0x20
[  335.102405]  new_skb+0x26/0x1c0
[  335.105691]  aoecmd_cfg+0x279/0x7f0
[  335.109322]  ? find_held_lock+0x36/0x1c0
[  335.113386]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  335.117717]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.123265]  ? check_preemption_disabled+0x48/0x280
[  335.128306]  ? __lock_is_held+0xb5/0x140
[  335.132381]  discover_timer+0x50/0x60
[  335.136183]  call_timer_fn+0x272/0x920
[  335.140073]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  335.144922]  ? process_timeout+0x40/0x40
[  335.148998]  ? __run_timers+0x7da/0xc70
[  335.152977]  ? _raw_spin_unlock_irq+0x27/0x80
[  335.157473]  ? _raw_spin_unlock_irq+0x27/0x80
[  335.161984]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  335.166835]  ? lockdep_hardirqs_on+0x296/0x5b0
[  335.171420]  ? trace_hardirqs_on+0xbd/0x310
[  335.175745]  ? kasan_check_read+0x11/0x20
[  335.179906]  ? __run_timers+0x7da/0xc70
[  335.183898]  ? trace_hardirqs_off_caller+0x310/0x310
[  335.189018]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  335.193861]  __run_timers+0x7e5/0xc70
[  335.197678]  ? timer_fixup_init+0x70/0x70
[  335.201829]  ? lock_acquire+0x1ed/0x520
[  335.205804]  ? zap_class+0x640/0x640
[  335.209519]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.215073]  ? kasan_check_read+0x11/0x20
[  335.219220]  ? do_raw_spin_lock+0x14f/0x350
[  335.223557]  ? find_held_lock+0x36/0x1c0
[  335.227637]  ? zap_class+0x640/0x640
[  335.231358]  ? pvclock_read_flags+0x160/0x160
[  335.235854]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.241411]  ? check_preemption_disabled+0x48/0x280
[  335.246439]  ? __lock_is_held+0xb5/0x140
[  335.250519]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.256061]  ? check_preemption_disabled+0x48/0x280
[  335.261085]  run_timer_softirq+0x52/0xb0
[  335.265151]  ? rcu_read_lock_sched_held+0x14f/0x180
[  335.270171]  __do_softirq+0x308/0xb7e
[  335.273984]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  335.278483]  ? lock_downgrade+0x900/0x900
[  335.282639]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  335.287756]  ? pvclock_read_flags+0x160/0x160
[  335.292688]  ? lapic_next_event+0x5a/0x90
[  335.296953]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.302520]  ? kvm_clock_read+0x18/0x30
[  335.306636]  ? kvm_sched_clock_read+0x9/0x20
[  335.311048]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.316592]  ? check_preemption_disabled+0x48/0x280
[  335.321621]  irq_exit+0x17f/0x1c0
[  335.325083]  smp_apic_timer_interrupt+0x1cb/0x760
[  335.329930]  ? smp_call_function_single_interrupt+0x159/0x650
[  335.335827]  ? smp_call_function_single_interrupt+0x650/0x650
[  335.341712]  ? interrupt_entry+0xb5/0xc0
[  335.345802]  ? trace_hardirqs_off_caller+0xbb/0x310
[  335.350826]  ? trace_hardirqs_off_caller+0xbb/0x310
[  335.355849]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  335.360695]  ? trace_hardirqs_on_caller+0x310/0x310
[  335.365716]  ? trace_hardirqs_on_caller+0x310/0x310
[  335.370747]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  335.375601]  apic_timer_interrupt+0xf/0x20
[  335.379832]  </IRQ>
[  335.382073] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  335.387018] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  335.405935] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  335.413653] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  335.420925] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  335.428219] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  335.435495] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  335.442763] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  335.450081]  skb_clone+0x1bb/0x500
[  335.453633]  ? skb_split+0x11e0/0x11e0
[  335.457523]  ? check_preemption_disabled+0x48/0x280
[  335.462565]  ? __this_cpu_preempt_check+0x1c/0x20
[  335.467408]  ? __bpf_redirect+0x54b/0xb20
[  335.471567]  bpf_clone_redirect+0xb9/0x490
[  335.475812]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  335.480837]  ? __sched_text_start+0x8/0x8
[  335.484989]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  335.489758]  ? find_held_lock+0x36/0x1c0
[  335.493828]  ? lock_acquire+0x1ed/0x520
[  335.497805]  ? bpf_test_run+0x3cb/0x780
[  335.501797]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.507350]  ? check_preemption_disabled+0x48/0x280
[  335.512381]  ? kasan_check_read+0x11/0x20
[  335.516531]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  335.521817]  ? rcu_softirq_qs+0x20/0x20
[  335.525800]  ? preempt_schedule+0x4d/0x60
[  335.529961]  ? ___preempt_schedule+0x16/0x18
[  335.534381]  ? bpf_test_run+0x25d/0x780
[  335.538370]  ? netlink_diag_dump+0x2a0/0x2a0
[  335.542788]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  335.547556]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  335.552322]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  335.557175]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  335.562716]  ? fput+0x130/0x1a0
[  335.566005]  ? __bpf_prog_get+0x9b/0x290
[  335.570073]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  335.574918]  ? bpf_prog_test_run+0x130/0x1a0
[  335.579338]  ? __x64_sys_bpf+0x3d8/0x520
[  335.583398]  ? bpf_prog_get+0x20/0x20
[  335.587218]  ? do_syscall_64+0x1b9/0x820
[  335.591281]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  335.596647]  ? syscall_return_slowpath+0x5e0/0x5e0
[  335.601583]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  335.606433]  ? trace_hardirqs_on_caller+0x310/0x310
[  335.611455]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  335.616476]  ? prepare_exit_to_usermode+0x291/0x3b0
[  335.621503]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  335.626357]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  335.631755] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  335.631853] aoe: skb alloc failure
[  335.638692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  335.638701] Call Trace:
[  335.642322] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  335.651566]  <IRQ>
[  335.654137] syz-executor4 cpuset=syz4 mems_allowed=0
[  335.664621]  dump_stack+0x244/0x39d
[  335.675477]  ? dump_stack_print_info.cold.1+0x20/0x20
[  335.680700]  warn_alloc.cold.116+0xb7/0x1bd
[  335.685031]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  335.689886]  ? lock_downgrade+0x900/0x900
[  335.694052]  ? trace_hardirqs_off+0xb8/0x310
[  335.698470]  ? trace_hardirqs_off+0xb8/0x310
[  335.702889]  __alloc_pages_slowpath+0x26e8/0x2e10
[  335.707762]  ? warn_alloc+0x120/0x120
[  335.711568]  ? print_usage_bug+0xc0/0xc0
[  335.715640]  ? warn_alloc+0x120/0x120
[  335.719447]  ? warn_alloc+0x120/0x120
[  335.723248]  ? print_usage_bug+0xc0/0xc0
[  335.727313]  ? print_usage_bug+0xc0/0xc0
[  335.731377]  ? __lock_acquire+0x62f/0x4c20
[  335.735623]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  335.741165]  ? should_fail+0x22d/0xd01
[  335.745062]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  335.750529]  ? __lock_acquire+0x62f/0x4c20
[  335.754770]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  335.759872]  ? __lock_acquire+0x62f/0x4c20
[  335.764112]  ? should_fail+0x22d/0xd01
[  335.767998]  ? find_held_lock+0x36/0x1c0
[  335.772084]  ? mark_held_locks+0x130/0x130
[  335.776325]  ? mark_held_locks+0x130/0x130
[  335.780577]  ? zap_class+0x640/0x640
[  335.784292]  ? zap_class+0x640/0x640
[  335.788036]  ? print_usage_bug+0xc0/0xc0
[  335.792102]  ? do_raw_spin_unlock+0xa7/0x330
[  335.796518]  ? zap_class+0x640/0x640
[  335.800272]  ? print_usage_bug+0xc0/0xc0
[  335.804330]  ? wq_watchdog_touch+0x9c/0xfe
[  335.808568]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.814109]  ? check_preemption_disabled+0x48/0x280
[  335.819159]  ? __lock_is_held+0xb5/0x140
[  335.823231]  __alloc_pages_nodemask+0xa80/0xde0
[  335.827900]  ? zap_class+0x640/0x640
[  335.831619]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  335.836647]  ? find_held_lock+0x36/0x1c0
[  335.840719]  ? ____cache_alloc_node+0x1c7/0x1e0
[  335.845391]  ? lock_downgrade+0x900/0x900
[  335.849568]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.855115]  cache_grow_begin+0xa5/0x8c0
[  335.859182]  ? do_raw_spin_unlock+0xa7/0x330
[  335.863598]  fallback_alloc+0x204/0x2e0
[  335.867596]  ____cache_alloc_node+0x1c7/0x1e0
[  335.872097]  kmem_cache_alloc_node+0xe3/0x730
[  335.876595]  ? ipv6_get_ifaddr+0x42e/0x620
[  335.880849]  __alloc_skb+0x119/0x770
[  335.884573]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  335.889860]  ? netdev_alloc_frag+0x1f0/0x1f0
[  335.894288]  ? lock_downgrade+0x900/0x900
[  335.898490]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  335.904032]  ? refcount_sub_and_test_checked+0x203/0x310
[  335.909490]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  335.914966]  ? addrconf_rs_timer+0x690/0x690
[  335.919408]  ndisc_alloc_skb+0x144/0x340
[  335.923523]  ndisc_send_rs+0x331/0x6e0
[  335.927427]  addrconf_rs_timer+0x314/0x690
[  335.931668]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  335.935923]  call_timer_fn+0x272/0x920
[  335.939819]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  335.944073]  ? process_timeout+0x40/0x40
[  335.948150]  ? mark_held_locks+0xc7/0x130
[  335.952303]  ? _raw_spin_unlock_irq+0x27/0x80
[  335.956806]  ? _raw_spin_unlock_irq+0x27/0x80
[  335.961301]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  335.965552]  ? lockdep_hardirqs_on+0x296/0x5b0
[  335.970154]  ? trace_hardirqs_on+0xbd/0x310
[  335.974494]  ? kasan_check_read+0x11/0x20
[  335.978661]  ? __run_timers+0x7da/0xc70
[  335.982638]  ? trace_hardirqs_off_caller+0x310/0x310
[  335.987748]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  335.992014]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  335.996251]  __run_timers+0x7e5/0xc70
[  336.000099]  ? timer_fixup_init+0x70/0x70
[  336.004250]  ? kasan_check_read+0x11/0x20
[  336.008400]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  336.013707]  ? rcu_softirq_qs+0x20/0x20
[  336.017689]  ? mark_held_locks+0xc7/0x130
[  336.021845]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  336.026624]  ? retint_kernel+0x2d/0x2d
[  336.030517]  ? trace_hardirqs_on_caller+0xc0/0x310
[  336.035454]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  336.040214]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  336.045679]  ? zap_class+0x640/0x640
[  336.049400]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.054951]  ? check_preemption_disabled+0x48/0x280
[  336.059983]  ? __lock_is_held+0xb5/0x140
[  336.064054]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.069605]  ? check_preemption_disabled+0x48/0x280
[  336.074661]  run_timer_softirq+0x52/0xb0
[  336.078729]  ? rcu_read_lock_sched_held+0x14f/0x180
[  336.083757]  __do_softirq+0x308/0xb7e
[  336.087579]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  336.092092]  ? lock_downgrade+0x900/0x900
[  336.096250]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  336.101363]  ? pvclock_read_flags+0x160/0x160
[  336.105875]  ? lapic_next_event+0x5a/0x90
[  336.110037]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.115590]  ? kvm_clock_read+0x18/0x30
[  336.119570]  ? kvm_sched_clock_read+0x9/0x20
[  336.123982]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.129531]  ? check_preemption_disabled+0x48/0x280
[  336.134555]  irq_exit+0x17f/0x1c0
[  336.138030]  smp_apic_timer_interrupt+0x1cb/0x760
[  336.142880]  ? smp_call_function_single_interrupt+0x650/0x650
[  336.148762]  ? interrupt_entry+0xb5/0xc0
[  336.152854]  ? trace_hardirqs_off_caller+0xbb/0x310
[  336.157878]  ? trace_hardirqs_off_caller+0xbb/0x310
[  336.162896]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  336.167742]  ? trace_hardirqs_on_caller+0x310/0x310
[  336.172776]  ? trace_hardirqs_on_caller+0x310/0x310
[  336.177793]  ? task_prio+0x50/0x50
[  336.181371]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.186927]  ? check_preemption_disabled+0x48/0x280
[  336.191966]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  336.196861]  apic_timer_interrupt+0xf/0x20
[  336.201090]  </IRQ>
[  336.203333] RIP: 0010:dump_stack+0x358/0x39d
[  336.207748] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  336.226656] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  336.234367] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  336.241644] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  336.248924] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  336.256197] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  336.263463] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  336.270794]  ? dump_stack+0x34f/0x39d
[  336.274611]  ? dump_stack_print_info.cold.1+0x20/0x20
[  336.279812]  ? mark_held_locks+0x130/0x130
[  336.284069]  ? mark_held_locks+0x130/0x130
[  336.288332]  dump_header+0x27b/0xf72
[  336.292069]  ? pagefault_out_of_memory+0x197/0x197
[  336.297011]  ? __lock_acquire+0x62f/0x4c20
[  336.301253]  ? percpu_ref_get_many+0x240/0x240
[  336.305841]  ? print_usage_bug+0xc0/0xc0
[  336.309950]  ? zap_class+0x640/0x640
[  336.313674]  ? print_usage_bug+0xc0/0xc0
[  336.317759]  ? print_usage_bug+0xc0/0xc0
[  336.321827]  ? zap_class+0x640/0x640
[  336.325546]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.331109]  ? find_held_lock+0x36/0x1c0
[  336.335187]  ? mark_held_locks+0xc7/0x130
[  336.339341]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  336.344444]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  336.349549]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  336.354138]  ? trace_hardirqs_on+0xbd/0x310
[  336.358475]  ? kasan_check_read+0x11/0x20
[  336.362621]  ? ___ratelimit+0x3b4/0x672
[  336.366613]  ? trace_hardirqs_off_caller+0x310/0x310
[  336.371720]  ? trace_hardirqs_on+0x310/0x310
[  336.376144]  ? lock_downgrade+0x900/0x900
[  336.380298]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  336.385402]  ? ___ratelimit+0x3b9/0x672
[  336.389394]  ? idr_get_free+0xf70/0xf70
[  336.393387]  ? find_held_lock+0x36/0x1c0
[  336.397459]  oom_kill_process.cold.27+0x10/0x903
[  336.402228]  ? zap_class+0x640/0x640
[  336.405951]  ? check_preemption_disabled+0x48/0x280
[  336.410976]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  336.415912]  ? kasan_check_read+0x11/0x20
[  336.420069]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  336.425349]  ? oom_evaluate_task+0x540/0x540
[  336.429759]  ? find_held_lock+0x36/0x1c0
[  336.433829]  ? out_of_memory+0x974/0x1430
[  336.437986]  ? lock_downgrade+0x900/0x900
[  336.442136]  ? check_preemption_disabled+0x48/0x280
[  336.447169]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  336.452109]  ? kasan_check_read+0x11/0x20
[  336.456254]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  336.461530]  ? rcu_softirq_qs+0x20/0x20
[  336.465507]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.471049]  ? oom_evaluate_task+0x302/0x540
[  336.475464]  out_of_memory+0xa84/0x1430
[  336.479446]  ? oom_killer_disable+0x3a0/0x3a0
[  336.483950]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  336.488891]  ? __ww_mutex_check_waiters+0x160/0x160
[  336.493932]  __alloc_pages_slowpath+0x2354/0x2e10
[  336.498822]  ? warn_alloc+0x120/0x120
[  336.502626]  ? mark_held_locks+0x130/0x130
[  336.506878]  ? find_get_entry+0xaae/0x1120
[  336.511136]  ? filemap_map_pages+0x1a20/0x1a20
[  336.515748]  ? zap_class+0x640/0x640
[  336.519472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  336.525011]  ? check_preemption_disabled+0x48/0x280
[  336.530034]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.535576]  ? should_fail+0x22d/0xd01
[  336.539481]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  336.544602]  ? zap_class+0x640/0x640
[  336.548401]  ? __lock_is_held+0xb5/0x140
[  336.552484]  ? mark_held_locks+0x130/0x130
[  336.556720]  ? lock_release+0xa00/0xa00
[  336.560697]  ? perf_trace_sched_process_exec+0x860/0x860
[  336.566154]  ? xa_load+0x2ba/0x460
[  336.569696]  ? lock_downgrade+0x900/0x900
[  336.573851]  ? __might_sleep+0x95/0x190
[  336.577834]  __alloc_pages_nodemask+0xa80/0xde0
[  336.582514]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  336.587534]  ? __page_cache_alloc+0x191/0x5c0
[  336.592030]  ? xa_load+0x2e1/0x460
[  336.595576]  ? xa_clear_mark+0x40/0x40
[  336.599465]  ? zap_class+0x640/0x640
[  336.603201]  ? zap_class+0x640/0x640
[  336.606917]  ? zap_class+0x640/0x640
[  336.610639]  ? __do_page_cache_readahead+0x663/0x810
[  336.615752]  ? find_held_lock+0x36/0x1c0
[  336.619823]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  336.625389]  alloc_pages_current+0x173/0x350
[  336.629994]  __page_cache_alloc+0x38c/0x5c0
[  336.634318]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  336.639246]  ? kasan_check_read+0x11/0x20
[  336.643397]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  336.648675]  ? generic_perform_write+0x6a0/0x6a0
[  336.653453]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.659033]  ? check_preemption_disabled+0x48/0x280
[  336.664065]  filemap_fault+0x1595/0x25f0
[  336.668158]  ? __lock_page_or_retry+0xa00/0xa00
[  336.672832]  ? mark_held_locks+0x130/0x130
[  336.677086]  ? filemap_map_pages+0xd6b/0x1a20
[  336.681603]  ? lock_downgrade+0x900/0x900
[  336.685753]  ? check_preemption_disabled+0x48/0x280
[  336.690776]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  336.695711]  ? kasan_check_read+0x11/0x20
[  336.699865]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  336.705146]  ? rcu_softirq_qs+0x20/0x20
[  336.709139]  ? filemap_map_pages+0xd92/0x1a20
[  336.713672]  ? find_get_entries_tag+0x1400/0x1400
[  336.718515]  ? find_held_lock+0x36/0x1c0
[  336.722597]  ? lock_acquire+0x1ed/0x520
[  336.726572]  ? ext4_filemap_fault+0x7a/0xad
[  336.730904]  ? lock_release+0xa00/0xa00
[  336.734876]  ? perf_trace_sched_process_exec+0x860/0x860
[  336.740330]  ? print_usage_bug+0xc0/0xc0
[  336.744391]  ? print_usage_bug+0xc0/0xc0
[  336.748465]  ? down_read+0x8d/0x120
[  336.752459]  ? ext4_filemap_fault+0x7a/0xad
[  336.756784]  ? __down_interruptible+0x700/0x700
[  336.761463]  ext4_filemap_fault+0x82/0xad
[  336.765616]  __do_fault+0x100/0x6b0
[  336.769246]  ? find_held_lock+0x36/0x1c0
[  336.773312]  ? pmd_devmap_trans_unstable+0x220/0x220
[  336.778418]  ? mark_held_locks+0x130/0x130
[  336.782661]  ? mark_held_locks+0x130/0x130
[  336.786907]  ? kasan_check_read+0x11/0x20
[  336.791062]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.796622]  __handle_mm_fault+0x3ea0/0x5be0
[  336.801048]  ? perf_trace_lock+0x7a0/0x7a0
[  336.805296]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  336.810177]  ? __switch_to_asm+0x34/0x70
[  336.814239]  ? __switch_to_asm+0x34/0x70
[  336.818315]  ? zap_class+0x640/0x640
[  336.822029]  ? zap_class+0x640/0x640
[  336.825759]  ? __x64_sys_futex+0x53e/0x6a0
[  336.830058]  ? find_held_lock+0x36/0x1c0
[  336.834143]  ? handle_mm_fault+0x42a/0xc70
[  336.838381]  ? lock_downgrade+0x900/0x900
[  336.842533]  ? check_preemption_disabled+0x48/0x280
[  336.847555]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  336.852486]  ? kasan_check_read+0x11/0x20
[  336.856634]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  336.861909]  ? rcu_softirq_qs+0x20/0x20
[  336.865892]  ? trace_hardirqs_off_caller+0x310/0x310
[  336.871002]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  336.876570]  ? check_preemption_disabled+0x48/0x280
[  336.881620]  handle_mm_fault+0x54f/0xc70
[  336.885720]  ? __handle_mm_fault+0x5be0/0x5be0
[  336.890337]  ? find_vma+0x34/0x190
[  336.893900]  __do_page_fault+0x5e8/0xe60
[  336.897968]  ? trace_hardirqs_off+0xb8/0x310
[  336.902391]  do_page_fault+0xf2/0x7e0
[  336.906221]  ? vmalloc_sync_all+0x30/0x30
[  336.910370]  ? error_entry+0x70/0xd0
[  336.914085]  ? trace_hardirqs_off_caller+0xbb/0x310
[  336.919101]  ? trace_hardirqs_on_caller+0xc0/0x310
[  336.924036]  ? syscall_return_slowpath+0x5e0/0x5e0
[  336.929000]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  336.933849]  ? trace_hardirqs_on_caller+0x310/0x310
[  336.938868]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  336.944333]  ? prepare_exit_to_usermode+0x291/0x3b0
[  336.949365]  ? page_fault+0x8/0x30
[  336.952917]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  336.957793]  ? page_fault+0x8/0x30
[  336.961337]  page_fault+0x1e/0x30
[  336.964792] RIP: 0033:0x44b69a
[  336.968020] Code: Bad RIP value.
[  336.971385] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  336.976753] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  336.984019] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  336.991293] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  336.998559] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  337.005832] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  337.013129] warn_alloc_show_mem: 1 callbacks suppressed
[  337.013142] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  337.013144] Mem-Info:
[  337.013177] active_anon:47227 inactive_anon:190 isolated_anon:0
[  337.013177]  active_file:11 inactive_file:14 isolated_file:0
[  337.013177]  unevictable:0 dirty:0 writeback:0 unstable:0
[  337.013177]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  337.013177]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  337.013177]  free:13756 free_pcp:235 free_cma:0
[  337.018553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  337.025741] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  337.028140] Call Trace:
[  337.061026] 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
[  337.070387]  <IRQ>
[  337.097874] lowmem_reserve[]: 0 2818 6321 6321
[  337.100490]  dump_stack+0x244/0x39d
[  337.126577] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  337.128751]  ? dump_stack_print_info.cold.1+0x20/0x20
[  337.133285] lowmem_reserve[]: 0 0 3503 3503
[  337.136928]  warn_alloc.cold.116+0xb7/0x1bd
[  337.164228] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  337.169431]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  337.173716] lowmem_reserve[]: 0 0 0 0
[  337.178041]  ? lock_downgrade+0x900/0x900
[  337.206921] 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
[  337.211784]  ? trace_hardirqs_off+0xb8/0x310
[  337.215552] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  337.219699]  ? trace_hardirqs_off+0xb8/0x310
[  337.233199] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  337.237662]  __alloc_pages_slowpath+0x26e8/0x2e10
[  337.252908] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  337.257335]  ? warn_alloc+0x120/0x120
[  337.272383] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  337.277232]  ? warn_alloc+0x120/0x120
[  337.286061] 269 total pagecache pages
[  337.289857]  ? warn_alloc+0x120/0x120
[  337.298415] 0 pages in swap cache
[  337.302209]  ? print_usage_bug+0xc0/0xc0
[  337.305982] Swap cache stats: add 0, delete 0, find 0/0
[  337.309787]  ? print_usage_bug+0xc0/0xc0
[  337.313214] Free swap  = 0kB
[  337.317272]  ? ktime_get+0x2c1/0x400
[  337.322608] Total swap = 0kB
[  337.326681]  ? check_preemption_disabled+0x48/0x280
[  337.329658] 1965979 pages RAM
[  337.333366]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  337.336359] 0 pages HighMem/MovableOnly
[  337.341377]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  337.344451] 342853 pages reserved
[  337.348953]  ? should_fail+0x22d/0xd01
[  337.352905] 0 pages cma reserved
[  337.358449]  ? kasan_check_read+0x11/0x20
[  337.361960] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  337.365758]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  337.369193] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  337.373251]  ? __lock_acquire+0x62f/0x4c20
[  337.379718] syz-fuzzer cpuset=/ mems_allowed=0
[  337.384831]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  337.408937]  ? should_fail+0x22d/0xd01
[  337.412842]  ? print_usage_bug+0xc0/0xc0
[  337.416918]  ? mark_held_locks+0x130/0x130
[  337.421162]  ? mark_held_locks+0x130/0x130
[  337.425426]  ? check_preemption_disabled+0x48/0x280
[  337.430464]  ? zap_class+0x640/0x640
[  337.434185]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  337.438957]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.444500]  ? check_preemption_disabled+0x48/0x280
[  337.449529]  ? __lock_is_held+0xb5/0x140
[  337.453605]  __alloc_pages_nodemask+0xa80/0xde0
[  337.458274]  ? zap_class+0x640/0x640
[  337.461996]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  337.467023]  ? find_held_lock+0x36/0x1c0
[  337.471097]  ? ____cache_alloc_node+0x1c7/0x1e0
[  337.475770]  ? lock_downgrade+0x900/0x900
[  337.479928]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.485481]  cache_grow_begin+0xa5/0x8c0
[  337.489552]  ? do_raw_spin_unlock+0xa7/0x330
[  337.494000]  fallback_alloc+0x204/0x2e0
[  337.498002]  ____cache_alloc_node+0x1c7/0x1e0
[  337.502519]  kmem_cache_alloc_node+0xe3/0x730
[  337.507058]  ? lockdep_hardirqs_on+0x296/0x5b0
[  337.511664]  __alloc_skb+0x119/0x770
[  337.515378]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  337.520748]  ? netdev_alloc_frag+0x1f0/0x1f0
[  337.525172]  ? vprintk_default+0x28/0x30
[  337.529234]  ? vprintk_func+0x85/0x181
[  337.533128]  ? printk+0xa7/0xcf
[  337.536411]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  337.541181]  new_skb+0x26/0x1c0
[  337.544466]  aoecmd_cfg+0x279/0x7f0
[  337.548106]  ? find_held_lock+0x36/0x1c0
[  337.552170]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  337.556502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.562057]  ? __lock_is_held+0xb5/0x140
[  337.566137]  discover_timer+0x50/0x60
[  337.569939]  call_timer_fn+0x272/0x920
[  337.573858]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  337.578716]  ? process_timeout+0x40/0x40
[  337.582785]  ? __run_timers+0x7da/0xc70
[  337.586760]  ? _raw_spin_unlock_irq+0x27/0x80
[  337.591258]  ? _raw_spin_unlock_irq+0x27/0x80
[  337.595773]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  337.600617]  ? lockdep_hardirqs_on+0x296/0x5b0
[  337.605230]  ? trace_hardirqs_on+0xbd/0x310
[  337.609578]  ? kasan_check_read+0x11/0x20
[  337.613726]  ? __run_timers+0x7da/0xc70
[  337.617711]  ? trace_hardirqs_off_caller+0x310/0x310
[  337.622831]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  337.627675]  __run_timers+0x7e5/0xc70
[  337.631489]  ? timer_fixup_init+0x70/0x70
[  337.635642]  ? lock_acquire+0x1ed/0x520
[  337.639620]  ? zap_class+0x640/0x640
[  337.643350]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.648902]  ? kasan_check_read+0x11/0x20
[  337.653072]  ? do_raw_spin_lock+0x14f/0x350
[  337.657416]  ? find_held_lock+0x36/0x1c0
[  337.661499]  ? zap_class+0x640/0x640
[  337.665217]  ? pvclock_read_flags+0x160/0x160
[  337.669719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.675270]  ? check_preemption_disabled+0x48/0x280
[  337.680302]  ? __lock_is_held+0xb5/0x140
[  337.684369]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.689919]  ? check_preemption_disabled+0x48/0x280
[  337.694962]  run_timer_softirq+0x52/0xb0
[  337.699032]  ? rcu_read_lock_sched_held+0x14f/0x180
[  337.704063]  __do_softirq+0x308/0xb7e
[  337.707881]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  337.712383]  ? lock_downgrade+0x900/0x900
[  337.716537]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  337.721657]  ? pvclock_read_flags+0x160/0x160
[  337.726160]  ? lapic_next_event+0x5a/0x90
[  337.730317]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.735864]  ? kvm_clock_read+0x18/0x30
[  337.739840]  ? kvm_sched_clock_read+0x9/0x20
[  337.744267]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.749807]  ? check_preemption_disabled+0x48/0x280
[  337.754837]  irq_exit+0x17f/0x1c0
[  337.758302]  smp_apic_timer_interrupt+0x1cb/0x760
[  337.763146]  ? smp_call_function_single_interrupt+0x159/0x650
[  337.769045]  ? smp_call_function_single_interrupt+0x650/0x650
[  337.774960]  ? interrupt_entry+0xb5/0xc0
[  337.779027]  ? trace_hardirqs_off_caller+0xbb/0x310
[  337.784060]  ? trace_hardirqs_off_caller+0xbb/0x310
[  337.789087]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  337.793931]  ? trace_hardirqs_on_caller+0x310/0x310
[  337.798966]  ? trace_hardirqs_on_caller+0x310/0x310
[  337.804004]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  337.808861]  apic_timer_interrupt+0xf/0x20
[  337.813098]  </IRQ>
[  337.815344] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  337.820304] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  337.839207] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  337.846917] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  337.854193] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  337.861465] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  337.868761] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  337.876042] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  337.883871]  skb_clone+0x1bb/0x500
[  337.887422]  ? skb_split+0x11e0/0x11e0
[  337.891312]  ? check_preemption_disabled+0x48/0x280
[  337.896339]  ? __this_cpu_preempt_check+0x1c/0x20
[  337.901181]  ? __bpf_redirect+0x54b/0xb20
[  337.905354]  bpf_clone_redirect+0xb9/0x490
[  337.909598]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  337.914626]  ? __sched_text_start+0x8/0x8
[  337.918778]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  337.923554]  ? find_held_lock+0x36/0x1c0
[  337.927636]  ? lock_acquire+0x1ed/0x520
[  337.931619]  ? bpf_test_run+0x3cb/0x780
[  337.935596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  337.941147]  ? check_preemption_disabled+0x48/0x280
[  337.946175]  ? kasan_check_read+0x11/0x20
[  337.950325]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  337.955605]  ? rcu_softirq_qs+0x20/0x20
[  337.959584]  ? preempt_schedule+0x4d/0x60
[  337.963734]  ? ___preempt_schedule+0x16/0x18
[  337.968152]  ? bpf_test_run+0x25d/0x780
[  337.972144]  ? netlink_diag_dump+0x2a0/0x2a0
[  337.976591]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  337.981377]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  337.986158]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  337.991002]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  337.996541]  ? fput+0x130/0x1a0
[  337.999838]  ? __bpf_prog_get+0x9b/0x290
[  338.003905]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  338.008765]  ? bpf_prog_test_run+0x130/0x1a0
[  338.013181]  ? __x64_sys_bpf+0x3d8/0x520
[  338.017261]  ? bpf_prog_get+0x20/0x20
[  338.021083]  ? do_syscall_64+0x1b9/0x820
[  338.025146]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  338.030511]  ? syscall_return_slowpath+0x5e0/0x5e0
[  338.035443]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  338.040290]  ? trace_hardirqs_on_caller+0x310/0x310
[  338.045329]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  338.050356]  ? prepare_exit_to_usermode+0x291/0x3b0
[  338.055382]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  338.060260]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  338.065644] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  338.065730] aoe: skb alloc failure
[  338.072582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  338.072588] Call Trace:
[  338.072595]  <IRQ>
[  338.072615]  dump_stack+0x244/0x39d
[  338.072642]  ? dump_stack_print_info.cold.1+0x20/0x20
[  338.072669]  warn_alloc.cold.116+0xb7/0x1bd
[  338.076217] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  338.085537]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  338.088105] syz-executor4 cpuset=syz4 mems_allowed=0
[  338.090252]  ? lock_downgrade+0x900/0x900
[  338.127897]  ? trace_hardirqs_off+0xb8/0x310
[  338.132321]  ? trace_hardirqs_off+0xb8/0x310
[  338.136743]  __alloc_pages_slowpath+0x26e8/0x2e10
[  338.141624]  ? warn_alloc+0x120/0x120
[  338.145435]  ? print_usage_bug+0xc0/0xc0
[  338.149515]  ? warn_alloc+0x120/0x120
[  338.153322]  ? warn_alloc+0x120/0x120
[  338.157134]  ? print_usage_bug+0xc0/0xc0
[  338.161205]  ? print_usage_bug+0xc0/0xc0
[  338.165272]  ? __lock_acquire+0x62f/0x4c20
[  338.169515]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.175063]  ? should_fail+0x22d/0xd01
[  338.178967]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  338.184086]  ? __lock_acquire+0x62f/0x4c20
[  338.188334]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  338.193442]  ? __lock_acquire+0x62f/0x4c20
[  338.197676]  ? should_fail+0x22d/0xd01
[  338.201576]  ? mark_held_locks+0x130/0x130
[  338.205820]  ? mark_held_locks+0x130/0x130
[  338.210058]  ? zap_class+0x640/0x640
[  338.213792]  ? zap_class+0x640/0x640
[  338.217522]  ? print_usage_bug+0xc0/0xc0
[  338.221584]  ? wq_watchdog_touch+0x9c/0xfe
[  338.225829]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.231370]  ? check_preemption_disabled+0x48/0x280
[  338.236418]  ? __lock_is_held+0xb5/0x140
[  338.240487]  __alloc_pages_nodemask+0xa80/0xde0
[  338.245158]  ? zap_class+0x640/0x640
[  338.248881]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  338.253908]  ? find_held_lock+0x36/0x1c0
[  338.257998]  ? ____cache_alloc_node+0x1c7/0x1e0
[  338.262693]  ? lock_downgrade+0x900/0x900
[  338.266865]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.272417]  cache_grow_begin+0xa5/0x8c0
[  338.276481]  ? do_raw_spin_unlock+0xa7/0x330
[  338.280910]  fallback_alloc+0x204/0x2e0
[  338.284936]  ____cache_alloc_node+0x1c7/0x1e0
[  338.289455]  kmem_cache_alloc_node+0xe3/0x730
[  338.293969]  ? ipv6_get_ifaddr+0x42e/0x620
[  338.298222]  __alloc_skb+0x119/0x770
[  338.301953]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.307240]  ? netdev_alloc_frag+0x1f0/0x1f0
[  338.311653]  ? lock_downgrade+0x900/0x900
[  338.315811]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.321356]  ? refcount_sub_and_test_checked+0x203/0x310
[  338.326825]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  338.332285]  ? addrconf_rs_timer+0x690/0x690
[  338.336709]  ndisc_alloc_skb+0x144/0x340
[  338.340786]  ndisc_send_rs+0x331/0x6e0
[  338.344689]  addrconf_rs_timer+0x314/0x690
[  338.348960]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.353213]  call_timer_fn+0x272/0x920
[  338.357108]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.361351]  ? process_timeout+0x40/0x40
[  338.365430]  ? mark_held_locks+0xc7/0x130
[  338.369584]  ? _raw_spin_unlock_irq+0x27/0x80
[  338.374090]  ? _raw_spin_unlock_irq+0x27/0x80
[  338.378606]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.382848]  ? lockdep_hardirqs_on+0x296/0x5b0
[  338.387436]  ? trace_hardirqs_on+0xbd/0x310
[  338.391760]  ? kasan_check_read+0x11/0x20
[  338.395908]  ? __run_timers+0x7da/0xc70
[  338.399884]  ? trace_hardirqs_off_caller+0x310/0x310
[  338.405010]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  338.409251]  __run_timers+0x7e5/0xc70
[  338.413074]  ? timer_fixup_init+0x70/0x70
[  338.417226]  ? kasan_check_read+0x11/0x20
[  338.421377]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.426656]  ? rcu_softirq_qs+0x20/0x20
[  338.430639]  ? mark_held_locks+0xc7/0x130
[  338.434793]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  338.439554]  ? retint_kernel+0x2d/0x2d
[  338.443448]  ? trace_hardirqs_on_caller+0xc0/0x310
[  338.448381]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  338.453144]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  338.458602]  ? zap_class+0x640/0x640
[  338.462330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.467888]  ? check_preemption_disabled+0x48/0x280
[  338.472921]  ? __lock_is_held+0xb5/0x140
[  338.476992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.482625]  ? check_preemption_disabled+0x48/0x280
[  338.487650]  run_timer_softirq+0x52/0xb0
[  338.491724]  ? rcu_read_lock_sched_held+0x14f/0x180
[  338.496768]  __do_softirq+0x308/0xb7e
[  338.500597]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  338.505092]  ? lock_downgrade+0x900/0x900
[  338.509263]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  338.514383]  ? pvclock_read_flags+0x160/0x160
[  338.518887]  ? lapic_next_event+0x5a/0x90
[  338.523070]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.528627]  ? kvm_clock_read+0x18/0x30
[  338.532603]  ? kvm_sched_clock_read+0x9/0x20
[  338.537020]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.542565]  ? check_preemption_disabled+0x48/0x280
[  338.547592]  irq_exit+0x17f/0x1c0
[  338.551069]  smp_apic_timer_interrupt+0x1cb/0x760
[  338.555916]  ? smp_call_function_single_interrupt+0x650/0x650
[  338.561814]  ? interrupt_entry+0xb5/0xc0
[  338.565890]  ? trace_hardirqs_off_caller+0xbb/0x310
[  338.570919]  ? trace_hardirqs_off_caller+0xbb/0x310
[  338.575957]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  338.580810]  ? trace_hardirqs_on_caller+0x310/0x310
[  338.585826]  ? trace_hardirqs_on_caller+0x310/0x310
[  338.590861]  ? task_prio+0x50/0x50
[  338.594407]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.599956]  ? check_preemption_disabled+0x48/0x280
[  338.604991]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  338.609854]  apic_timer_interrupt+0xf/0x20
[  338.614088]  </IRQ>
[  338.616329] RIP: 0010:dump_stack+0x358/0x39d
[  338.620739] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  338.639646] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  338.647374] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  338.654647] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  338.661929] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  338.669212] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  338.676483] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  338.683784]  ? dump_stack+0x34f/0x39d
[  338.687607]  ? dump_stack_print_info.cold.1+0x20/0x20
[  338.692820]  ? mark_held_locks+0x130/0x130
[  338.697066]  ? mark_held_locks+0x130/0x130
[  338.701307]  dump_header+0x27b/0xf72
[  338.705035]  ? pagefault_out_of_memory+0x197/0x197
[  338.709994]  ? __lock_acquire+0x62f/0x4c20
[  338.714236]  ? percpu_ref_get_many+0x240/0x240
[  338.718821]  ? print_usage_bug+0xc0/0xc0
[  338.722890]  ? zap_class+0x640/0x640
[  338.726610]  ? print_usage_bug+0xc0/0xc0
[  338.730698]  ? print_usage_bug+0xc0/0xc0
[  338.734771]  ? zap_class+0x640/0x640
[  338.738493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.744040]  ? find_held_lock+0x36/0x1c0
[  338.748134]  ? mark_held_locks+0xc7/0x130
[  338.752723]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  338.757833]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  338.762949]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  338.767536]  ? trace_hardirqs_on+0xbd/0x310
[  338.771863]  ? kasan_check_read+0x11/0x20
[  338.776022]  ? ___ratelimit+0x3b4/0x672
[  338.780019]  ? trace_hardirqs_off_caller+0x310/0x310
[  338.785129]  ? trace_hardirqs_on+0x310/0x310
[  338.789544]  ? lock_downgrade+0x900/0x900
[  338.793701]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  338.798805]  ? ___ratelimit+0x3b9/0x672
[  338.802781]  ? idr_get_free+0xf70/0xf70
[  338.806761]  ? find_held_lock+0x36/0x1c0
[  338.810835]  oom_kill_process.cold.27+0x10/0x903
[  338.815609]  ? zap_class+0x640/0x640
[  338.819335]  ? check_preemption_disabled+0x48/0x280
[  338.824400]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  338.829334]  ? kasan_check_read+0x11/0x20
[  338.833483]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.838763]  ? oom_evaluate_task+0x540/0x540
[  338.843179]  ? find_held_lock+0x36/0x1c0
[  338.847250]  ? out_of_memory+0x974/0x1430
[  338.851402]  ? lock_downgrade+0x900/0x900
[  338.855558]  ? check_preemption_disabled+0x48/0x280
[  338.860591]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  338.865530]  ? kasan_check_read+0x11/0x20
[  338.869681]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  338.874973]  ? rcu_softirq_qs+0x20/0x20
[  338.878965]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.884513]  ? oom_evaluate_task+0x302/0x540
[  338.888932]  out_of_memory+0xa84/0x1430
[  338.892926]  ? oom_killer_disable+0x3a0/0x3a0
[  338.897436]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  338.902376]  ? __ww_mutex_check_waiters+0x160/0x160
[  338.907407]  __alloc_pages_slowpath+0x2354/0x2e10
[  338.912293]  ? warn_alloc+0x120/0x120
[  338.916100]  ? mark_held_locks+0x130/0x130
[  338.920350]  ? find_get_entry+0xaae/0x1120
[  338.924599]  ? filemap_map_pages+0x1a20/0x1a20
[  338.929193]  ? zap_class+0x640/0x640
[  338.932913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  338.938460]  ? check_preemption_disabled+0x48/0x280
[  338.943521]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  338.949071]  ? should_fail+0x22d/0xd01
[  338.952972]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  338.958099]  ? zap_class+0x640/0x640
[  338.961842]  ? __lock_is_held+0xb5/0x140
[  338.965928]  ? mark_held_locks+0x130/0x130
[  338.970177]  ? lock_release+0xa00/0xa00
[  338.974161]  ? perf_trace_sched_process_exec+0x860/0x860
[  338.979613]  ? xa_load+0x2ba/0x460
[  338.983176]  ? lock_downgrade+0x900/0x900
[  338.987331]  ? __might_sleep+0x95/0x190
[  338.991316]  __alloc_pages_nodemask+0xa80/0xde0
[  338.996003]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  339.001023]  ? __page_cache_alloc+0x191/0x5c0
[  339.005525]  ? xa_load+0x2e1/0x460
[  339.009076]  ? xa_clear_mark+0x40/0x40
[  339.012989]  ? zap_class+0x640/0x640
[  339.016719]  ? zap_class+0x640/0x640
[  339.020431]  ? zap_class+0x640/0x640
[  339.024159]  ? __do_page_cache_readahead+0x663/0x810
[  339.029270]  ? find_held_lock+0x36/0x1c0
[  339.033344]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  339.038894]  alloc_pages_current+0x173/0x350
[  339.043465]  __page_cache_alloc+0x38c/0x5c0
[  339.047789]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  339.052718]  ? kasan_check_read+0x11/0x20
[  339.056867]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  339.062152]  ? generic_perform_write+0x6a0/0x6a0
[  339.066914]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.072462]  ? check_preemption_disabled+0x48/0x280
[  339.077505]  filemap_fault+0x1595/0x25f0
[  339.081584]  ? __lock_page_or_retry+0xa00/0xa00
[  339.086259]  ? mark_held_locks+0x130/0x130
[  339.090509]  ? filemap_map_pages+0xd6b/0x1a20
[  339.095008]  ? lock_downgrade+0x900/0x900
[  339.099174]  ? check_preemption_disabled+0x48/0x280
[  339.104197]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  339.109131]  ? kasan_check_read+0x11/0x20
[  339.113297]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  339.118576]  ? rcu_softirq_qs+0x20/0x20
[  339.122567]  ? filemap_map_pages+0xd92/0x1a20
[  339.127082]  ? find_get_entries_tag+0x1400/0x1400
[  339.131932]  ? find_held_lock+0x36/0x1c0
[  339.136028]  ? lock_acquire+0x1ed/0x520
[  339.140008]  ? ext4_filemap_fault+0x7a/0xad
[  339.144338]  ? lock_release+0xa00/0xa00
[  339.148311]  ? perf_trace_sched_process_exec+0x860/0x860
[  339.153767]  ? print_usage_bug+0xc0/0xc0
[  339.157834]  ? print_usage_bug+0xc0/0xc0
[  339.161917]  ? down_read+0x8d/0x120
[  339.165558]  ? ext4_filemap_fault+0x7a/0xad
[  339.169901]  ? __down_interruptible+0x700/0x700
[  339.174586]  ext4_filemap_fault+0x82/0xad
[  339.178767]  __do_fault+0x100/0x6b0
[  339.182405]  ? find_held_lock+0x36/0x1c0
[  339.186478]  ? pmd_devmap_trans_unstable+0x220/0x220
[  339.191589]  ? mark_held_locks+0x130/0x130
[  339.195827]  ? mark_held_locks+0x130/0x130
[  339.200084]  ? kasan_check_read+0x11/0x20
[  339.204234]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.209778]  __handle_mm_fault+0x3ea0/0x5be0
[  339.214192]  ? perf_trace_lock+0x7a0/0x7a0
[  339.218437]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  339.223292]  ? __switch_to_asm+0x34/0x70
[  339.227357]  ? __switch_to_asm+0x34/0x70
[  339.231437]  ? zap_class+0x640/0x640
[  339.235151]  ? zap_class+0x640/0x640
[  339.238870]  ? __x64_sys_futex+0x53e/0x6a0
[  339.243114]  ? find_held_lock+0x36/0x1c0
[  339.247185]  ? handle_mm_fault+0x42a/0xc70
[  339.251428]  ? lock_downgrade+0x900/0x900
[  339.255586]  ? check_preemption_disabled+0x48/0x280
[  339.260606]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  339.265537]  ? kasan_check_read+0x11/0x20
[  339.269685]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  339.274967]  ? rcu_softirq_qs+0x20/0x20
[  339.278950]  ? trace_hardirqs_off_caller+0x310/0x310
[  339.284097]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.289640]  ? check_preemption_disabled+0x48/0x280
[  339.294704]  handle_mm_fault+0x54f/0xc70
[  339.298773]  ? __handle_mm_fault+0x5be0/0x5be0
[  339.303362]  ? find_vma+0x34/0x190
[  339.306913]  __do_page_fault+0x5e8/0xe60
[  339.310986]  ? trace_hardirqs_off+0xb8/0x310
[  339.315437]  do_page_fault+0xf2/0x7e0
[  339.319238]  ? vmalloc_sync_all+0x30/0x30
[  339.323387]  ? error_entry+0x70/0xd0
[  339.327132]  ? trace_hardirqs_off_caller+0xbb/0x310
[  339.332147]  ? trace_hardirqs_on_caller+0xc0/0x310
[  339.337085]  ? syscall_return_slowpath+0x5e0/0x5e0
[  339.342017]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  339.346872]  ? trace_hardirqs_on_caller+0x310/0x310
[  339.351894]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  339.357356]  ? prepare_exit_to_usermode+0x291/0x3b0
[  339.362383]  ? page_fault+0x8/0x30
[  339.365927]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  339.370790]  ? page_fault+0x8/0x30
[  339.374340]  page_fault+0x1e/0x30
[  339.377817] RIP: 0033:0x44b69a
[  339.381024] Code: Bad RIP value.
[  339.384390] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  339.389751] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  339.397022] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  339.404335] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  339.411604] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  339.418876] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  339.426170] warn_alloc_show_mem: 1 callbacks suppressed
[  339.426182] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  339.426185] Mem-Info:
[  339.426234] active_anon:47227 inactive_anon:190 isolated_anon:0
[  339.426234]  active_file:11 inactive_file:14 isolated_file:0
[  339.426234]  unevictable:0 dirty:0 writeback:0 unstable:0
[  339.426234]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  339.426234]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  339.426234]  free:13756 free_pcp:235 free_cma:0
[  339.431590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  339.438783] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  339.441181] Call Trace:
[  339.474059] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  339.483426]  <IRQ>
[  339.510926] lowmem_reserve[]: 0 2818 6321 6321
[  339.513540]  dump_stack+0x244/0x39d
[  339.539622] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  339.541785]  ? dump_stack_print_info.cold.1+0x20/0x20
[  339.546355] lowmem_reserve[]: 0 0 3503 3503
[  339.550023]  warn_alloc.cold.116+0xb7/0x1bd
[  339.577330] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  339.582537]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  339.586822] lowmem_reserve[]: 0 0 0 0
[  339.591146]  ? lock_downgrade+0x900/0x900
[  339.620019] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  339.624901]  ? trace_hardirqs_off+0xb8/0x310
[  339.628680] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  339.632832]  ? trace_hardirqs_off+0xb8/0x310
[  339.646333] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  339.650747]  __alloc_pages_slowpath+0x26e8/0x2e10
[  339.665983] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  339.670430]  ? warn_alloc+0x120/0x120
[  339.685462] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  339.690314]  ? warn_alloc+0x120/0x120
[  339.699121] 269 total pagecache pages
[  339.702922]  ? __lock_acquire+0x62f/0x4c20
[  339.711493] 0 pages in swap cache
[  339.715287]  ? warn_alloc+0x120/0x120
[  339.719094] Swap cache stats: add 0, delete 0, find 0/0
[  339.723324]  ? print_usage_bug+0xc0/0xc0
[  339.726752] Free swap  = 0kB
[  339.730543]  ? print_usage_bug+0xc0/0xc0
[  339.735885] Total swap = 0kB
[  339.739938]  ? mark_held_locks+0x130/0x130
[  339.742949] 1965979 pages RAM
[  339.747015]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  339.750435] 0 pages HighMem/MovableOnly
[  339.754683]  ? should_fail+0x22d/0xd01
[  339.757759] 342853 pages reserved
[  339.763288]  ? zap_class+0x640/0x640
[  339.767250] 0 pages cma reserved
[  339.771134]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  339.774669] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  339.778282]  ? __lock_acquire+0x62f/0x4c20
[  339.781718] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  339.786745]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  339.793231] syz-fuzzer cpuset=/ mems_allowed=0
[  339.797458]  ? should_fail+0x22d/0xd01
[  339.821202]  ? mark_held_locks+0x130/0x130
[  339.825446]  ? mark_held_locks+0x130/0x130
[  339.829698]  ? lock_downgrade+0x900/0x900
[  339.833847]  ? zap_class+0x640/0x640
[  339.837612]  ? zap_class+0x640/0x640
[  339.841344]  ? zap_class+0x640/0x640
[  339.845078]  ? do_raw_spin_unlock+0xa7/0x330
[  339.849487]  ? trace_hardirqs_on+0x310/0x310
[  339.853912]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.859454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.865007]  ? check_preemption_disabled+0x48/0x280
[  339.870064]  ? __lock_is_held+0xb5/0x140
[  339.874137]  __alloc_pages_nodemask+0xa80/0xde0
[  339.878812]  ? zap_class+0x640/0x640
[  339.883017]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  339.888050]  ? find_held_lock+0x36/0x1c0
[  339.892124]  ? ____cache_alloc_node+0x1c7/0x1e0
[  339.896800]  ? lock_downgrade+0x900/0x900
[  339.900992]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.906537]  cache_grow_begin+0xa5/0x8c0
[  339.910621]  ? do_raw_spin_unlock+0xa7/0x330
[  339.915038]  fallback_alloc+0x204/0x2e0
[  339.919022]  ____cache_alloc_node+0x1c7/0x1e0
[  339.923523]  kmem_cache_alloc_node+0xe3/0x730
[  339.928036]  ? lockdep_hardirqs_on+0x296/0x5b0
[  339.932633]  __alloc_skb+0x119/0x770
[  339.936358]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  339.941727]  ? netdev_alloc_frag+0x1f0/0x1f0
[  339.946147]  ? vprintk_default+0x28/0x30
[  339.950210]  ? vprintk_func+0x85/0x181
[  339.954117]  ? printk+0xa7/0xcf
[  339.957400]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  339.962194]  new_skb+0x26/0x1c0
[  339.965481]  aoecmd_cfg+0x279/0x7f0
[  339.969129]  ? find_held_lock+0x36/0x1c0
[  339.973192]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  339.977534]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  339.983100]  ? __lock_is_held+0xb5/0x140
[  339.987196]  discover_timer+0x50/0x60
[  339.991030]  call_timer_fn+0x272/0x920
[  339.994920]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  339.999769]  ? process_timeout+0x40/0x40
[  340.003841]  ? __run_timers+0x7da/0xc70
[  340.007817]  ? _raw_spin_unlock_irq+0x27/0x80
[  340.012316]  ? _raw_spin_unlock_irq+0x27/0x80
[  340.016815]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  340.021661]  ? lockdep_hardirqs_on+0x296/0x5b0
[  340.026264]  ? trace_hardirqs_on+0xbd/0x310
[  340.030609]  ? kasan_check_read+0x11/0x20
[  340.034756]  ? __run_timers+0x7da/0xc70
[  340.038733]  ? trace_hardirqs_off_caller+0x310/0x310
[  340.043854]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  340.048695]  __run_timers+0x7e5/0xc70
[  340.052508]  ? timer_fixup_init+0x70/0x70
[  340.056660]  ? lock_acquire+0x1ed/0x520
[  340.060640]  ? zap_class+0x640/0x640
[  340.064357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.069904]  ? kasan_check_read+0x11/0x20
[  340.074080]  ? do_raw_spin_lock+0x14f/0x350
[  340.078412]  ? find_held_lock+0x36/0x1c0
[  340.082492]  ? zap_class+0x640/0x640
[  340.086209]  ? pvclock_read_flags+0x160/0x160
[  340.090713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.096259]  ? check_preemption_disabled+0x48/0x280
[  340.101301]  ? __lock_is_held+0xb5/0x140
[  340.105368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.110909]  ? check_preemption_disabled+0x48/0x280
[  340.115938]  run_timer_softirq+0x52/0xb0
[  340.120018]  ? rcu_read_lock_sched_held+0x14f/0x180
[  340.125053]  __do_softirq+0x308/0xb7e
[  340.128865]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  340.133361]  ? lock_downgrade+0x900/0x900
[  340.137515]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  340.142636]  ? pvclock_read_flags+0x160/0x160
[  340.147140]  ? lapic_next_event+0x5a/0x90
[  340.151292]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.156851]  ? kvm_clock_read+0x18/0x30
[  340.160827]  ? kvm_sched_clock_read+0x9/0x20
[  340.165241]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.170799]  ? check_preemption_disabled+0x48/0x280
[  340.175829]  irq_exit+0x17f/0x1c0
[  340.179289]  smp_apic_timer_interrupt+0x1cb/0x760
[  340.184136]  ? smp_call_function_single_interrupt+0x159/0x650
[  340.190028]  ? smp_call_function_single_interrupt+0x650/0x650
[  340.195924]  ? interrupt_entry+0xb5/0xc0
[  340.200016]  ? trace_hardirqs_off_caller+0xbb/0x310
[  340.205034]  ? trace_hardirqs_off_caller+0xbb/0x310
[  340.210063]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.214907]  ? trace_hardirqs_on_caller+0x310/0x310
[  340.219928]  ? trace_hardirqs_on_caller+0x310/0x310
[  340.224973]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.229842]  apic_timer_interrupt+0xf/0x20
[  340.234072]  </IRQ>
[  340.236316] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  340.241247] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  340.260154] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  340.267866] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  340.275136] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  340.282403] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  340.289669] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  340.296974] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  340.304302]  skb_clone+0x1bb/0x500
[  340.307860]  ? skb_split+0x11e0/0x11e0
[  340.311760]  ? check_preemption_disabled+0x48/0x280
[  340.316799]  ? __this_cpu_preempt_check+0x1c/0x20
[  340.321640]  ? __bpf_redirect+0x54b/0xb20
[  340.325798]  bpf_clone_redirect+0xb9/0x490
[  340.330042]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  340.335066]  ? __sched_text_start+0x8/0x8
[  340.339220]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  340.344022]  ? find_held_lock+0x36/0x1c0
[  340.348134]  ? lock_acquire+0x1ed/0x520
[  340.352115]  ? bpf_test_run+0x3cb/0x780
[  340.356100]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.361648]  ? check_preemption_disabled+0x48/0x280
[  340.366681]  ? kasan_check_read+0x11/0x20
[  340.370835]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.376116]  ? rcu_softirq_qs+0x20/0x20
[  340.380098]  ? preempt_schedule+0x4d/0x60
[  340.384257]  ? ___preempt_schedule+0x16/0x18
[  340.388681]  ? bpf_test_run+0x25d/0x780
[  340.392678]  ? netlink_diag_dump+0x2a0/0x2a0
[  340.397104]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  340.401863]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  340.406629]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  340.411474]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  340.417017]  ? fput+0x130/0x1a0
[  340.420306]  ? __bpf_prog_get+0x9b/0x290
[  340.424375]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  340.429223]  ? bpf_prog_test_run+0x130/0x1a0
[  340.433655]  ? __x64_sys_bpf+0x3d8/0x520
[  340.437720]  ? bpf_prog_get+0x20/0x20
[  340.441560]  ? do_syscall_64+0x1b9/0x820
[  340.445631]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  340.450998]  ? syscall_return_slowpath+0x5e0/0x5e0
[  340.455927]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.460795]  ? trace_hardirqs_on_caller+0x310/0x310
[  340.465815]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  340.470857]  ? prepare_exit_to_usermode+0x291/0x3b0
[  340.475880]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  340.480743]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  340.486133] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  340.486173] rcu: INFO: rcu_preempt self-detected stall on CPU
[  340.493073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  340.493082] Call Trace:
[  340.499269] rcu: 	1-...!: (178 ticks this GP) idle=15a/1/0x4000000000000004 softirq=87486/87499 fqs=0 
[  340.508322]  <IRQ>
[  340.508346]  dump_stack+0x244/0x39d
[  340.508363]  ? dump_stack_print_info.cold.1+0x20/0x20
[  340.508393]  warn_alloc.cold.116+0xb7/0x1bd
[  340.508410]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  340.508432]  ? lock_downgrade+0x900/0x900
[  340.508456]  ? trace_hardirqs_off+0xb8/0x310
[  340.508476]  ? trace_hardirqs_off+0xb8/0x310
[  340.508499]  __alloc_pages_slowpath+0x26e8/0x2e10
[  340.511308] rcu: 	 (t=10548 jiffies g=27613 q=4)
[  340.520774]  ? warn_alloc+0x120/0x120
[  340.522896] rcu: rcu_preempt kthread starved for 10548 jiffies! g27613 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[  340.526506]  ? print_usage_bug+0xc0/0xc0
[  340.531667] rcu: RCU grace-period kthread stack dump:
[  340.535984]  ? warn_alloc+0x120/0x120
[  340.540803] rcu_preempt     R  running task    23216    10      2 0x80000000
[  340.544949]  ? warn_alloc+0x120/0x120
[  340.549337] Call Trace:
[  340.553753]  ? print_usage_bug+0xc0/0xc0
[  340.558582]  __schedule+0x8cf/0x21d0
[  340.563317]  ? print_usage_bug+0xc0/0xc0
[  340.567120]  ? __sched_text_start+0x8/0x8
[  340.577612]  ? __lock_acquire+0x62f/0x4c20
[  340.581690]  ? add_timer_on+0xa20/0xa20
[  340.586862]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  340.590646]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  340.597820]  ? should_fail+0x22d/0xd01
[  340.601600]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  340.604168]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  340.608217]  ? trace_hardirqs_on+0xbd/0x310
[  340.611917]  ? __lock_acquire+0x62f/0x4c20
[  340.615973]  ? kasan_check_read+0x11/0x20
[  340.620105]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  340.624323]  ? prepare_to_swait_event+0x25a/0x800
[  340.628280]  ? __lock_acquire+0x62f/0x4c20
[  340.633804]  ? trace_hardirqs_off_caller+0x310/0x310
[  340.638887]  ? should_fail+0x22d/0xd01
[  340.642765]  schedule+0xfe/0x460
[  340.647870]  ? find_held_lock+0x36/0x1c0
[  340.652982]  ? __schedule+0x21d0/0x21d0
[  340.657324]  ? mark_held_locks+0x130/0x130
[  340.661553]  ? prepare_to_swait_event+0x25a/0x800
[  340.665677]  ? mark_held_locks+0x130/0x130
[  340.670772]  ? __init_swait_queue_head+0x150/0x150
[  340.675591]  ? zap_class+0x640/0x640
[  340.679810]  ? __lockdep_init_map+0x105/0x590
[  340.684898]  ? zap_class+0x640/0x640
[  340.688774]  ? lockdep_init_map+0x9/0x10
[  340.692126]  ? print_usage_bug+0xc0/0xc0
[  340.696177]  schedule_timeout+0x140/0x260
[  340.700141]  ? do_raw_spin_unlock+0xa7/0x330
[  340.704364]  ? usleep_range+0x1a0/0x1a0
[  340.709194]  ? zap_class+0x640/0x640
[  340.713412]  ? __next_timer_interrupt+0x1a0/0x1a0
[  340.718328]  ? print_usage_bug+0xc0/0xc0
[  340.722037]  rcu_gp_fqs_loop+0x762/0xa80
[  340.726506]  ? wq_watchdog_touch+0x9c/0xfe
[  340.730208]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  340.734255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.738298]  ? trace_hardirqs_off_caller+0x310/0x310
[  340.742430]  ? check_preemption_disabled+0x48/0x280
[  340.746818]  ? perf_trace_sched_process_exec+0x860/0x860
[  340.751157]  ? __lock_is_held+0xb5/0x140
[  340.754856]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.759683]  __alloc_pages_nodemask+0xa80/0xde0
[  340.763739]  ? rcu_gp_init+0x90b/0x1260
[  340.767815]  ? zap_class+0x640/0x640
[  340.772048]  ? __switch_to_asm+0x40/0x70
[  340.776794]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  340.782317]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  340.787406]  ? find_held_lock+0x36/0x1c0
[  340.792399]  ? __switch_to_asm+0x40/0x70
[  340.797842]  ? ____cache_alloc_node+0x1c7/0x1e0
[  340.801899]  ? find_held_lock+0x36/0x1c0
[  340.807423]  ? lock_downgrade+0x900/0x900
[  340.812078]  ? zap_class+0x640/0x640
[  340.816050]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.819740]  ? prepare_to_swait_event+0x25a/0x800
[  340.823785]  cache_grow_begin+0xa5/0x8c0
[  340.828786]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  340.833526]  ? do_raw_spin_unlock+0xa7/0x330
[  340.837572]  ? find_held_lock+0x36/0x1c0
[  340.841622]  fallback_alloc+0x204/0x2e0
[  340.846284]  ? finish_swait+0x25d/0x430
[  340.850327]  ____cache_alloc_node+0x1c7/0x1e0
[  340.854460]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  340.858161]  kmem_cache_alloc_node+0xe3/0x730
[  340.863678]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  340.868508]  ? ipv6_get_ifaddr+0x42e/0x620
[  340.872558]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  340.877672]  __alloc_skb+0x119/0x770
[  340.882069]  ? trace_hardirqs_on+0xbd/0x310
[  340.886116]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  340.890081]  ? kasan_check_read+0x11/0x20
[  340.894059]  ? netdev_alloc_frag+0x1f0/0x1f0
[  340.898553]  ? trace_hardirqs_off_caller+0x310/0x310
[  340.903634]  ? lock_downgrade+0x900/0x900
[  340.908118]  ? __init_swait_queue_head+0x150/0x150
[  340.913208]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.917425]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  340.922000]  ? refcount_sub_and_test_checked+0x203/0x310
[  340.925701]  ? finish_swait+0x25d/0x430
[  340.930022]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  340.935285]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  340.939417]  ? addrconf_rs_timer+0x690/0x690
[  340.943806]  ? swake_up_locked+0x360/0x360
[  340.948919]  ndisc_alloc_skb+0x144/0x340
[  340.953051]  ? trace_hardirqs_off_caller+0x310/0x310
[  340.957975]  ndisc_send_rs+0x331/0x6e0
[  340.963494]  ? perf_trace_sched_process_exec+0x860/0x860
[  340.968584]  addrconf_rs_timer+0x314/0x690
[  340.974036]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  340.978040]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  340.983494]  rcu_gp_kthread+0x341/0xc70
[  340.988073]  call_timer_fn+0x272/0x920
[  340.992479]  ? rcu_gp_init+0x1260/0x1260
[  340.996725]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  341.000795]  ? mark_held_locks+0x130/0x130
[  341.005883]  ? process_timeout+0x40/0x40
[  341.009781]  ? __schedule+0x168a/0x21d0
[  341.015237]  ? mark_held_locks+0xc7/0x130
[  341.019464]  ? _raw_spin_unlock_irq+0x27/0x80
[  341.024983]  ? _raw_spin_unlock_irq+0x27/0x80
[  341.029264]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  341.033219]  ? _raw_spin_unlock_irq+0x27/0x80
[  341.037097]  ? trace_hardirqs_on+0xbd/0x310
[  341.041146]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  341.045365]  ? kasan_check_read+0x11/0x20
[  341.049578]  ? lockdep_hardirqs_on+0x296/0x5b0
[  341.053634]  ? __schedule+0x168a/0x21d0
[  341.057666]  ? trace_hardirqs_on+0xbd/0x310
[  341.061798]  ? trace_hardirqs_off_caller+0x310/0x310
[  341.066291]  ? kasan_check_read+0x11/0x20
[  341.070767]  ? lock_pin_lock+0x350/0x350
[  341.075337]  ? __run_timers+0x7da/0xc70
[  341.079825]  ? _raw_spin_unlock_irq+0x60/0x80
[  341.084129]  ? trace_hardirqs_off_caller+0x310/0x310
[  341.088351]  ? __schedule+0x168a/0x21d0
[  341.092523]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  341.097085]  ? __switch_to_asm+0x40/0x70
[  341.101052]  __run_timers+0x7e5/0xc70
[  341.105398]  ? __switch_to_asm+0x40/0x70
[  341.110521]  ? timer_fixup_init+0x70/0x70
[  341.114647]  ? show_schedstat+0x721/0xf30
[  341.118698]  ? kasan_check_read+0x11/0x20
[  341.122656]  ? __sched_text_start+0x8/0x8
[  341.127133]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.132223]  ? find_held_lock+0x36/0x1c0
[  341.136176]  ? rcu_softirq_qs+0x20/0x20
[  341.140425]  ? __kthread_parkme+0xce/0x1a0
[  341.144464]  ? mark_held_locks+0xc7/0x130
[  341.148247]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  341.152298]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  341.156430]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  341.160566]  ? retint_kernel+0x2d/0x2d
[  341.164705]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  341.168837]  ? trace_hardirqs_on_caller+0xc0/0x310
[  341.174099]  ? trace_hardirqs_on+0xbd/0x310
[  341.178153]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  341.182112]  ? kasan_check_read+0x11/0x20
[  341.186328]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  341.190459]  ? __kthread_parkme+0xce/0x1a0
[  341.195542]  ? zap_class+0x640/0x640
[  341.200291]  ? trace_hardirqs_off_caller+0x310/0x310
[  341.205412]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  341.209289]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  341.213862]  ? check_preemption_disabled+0x48/0x280
[  341.218780]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.223092]  ? __lock_is_held+0xb5/0x140
[  341.227833]  ? __kthread_parkme+0xfb/0x1a0
[  341.231972]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  341.237410]  ? rcu_gp_init+0x1260/0x1260
[  341.241634]  ? check_preemption_disabled+0x48/0x280
[  341.245337]  kthread+0x35a/0x440
[  341.250446]  run_timer_softirq+0x52/0xb0
[  341.255984]  ? kthread_stop+0x900/0x900
[  341.261073]  ? rcu_read_lock_sched_held+0x14f/0x180
[  341.266079]  ret_from_fork+0x3a/0x50
[  341.271605]  __do_softirq+0x308/0xb7e
[  341.275662] NMI backtrace for cpu 1
[  341.279879]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  341.326451]  ? lock_downgrade+0x900/0x900
[  341.330610]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  341.335729]  ? pvclock_read_flags+0x160/0x160
[  341.340227]  ? lapic_next_event+0x5a/0x90
[  341.344380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  341.349931]  ? kvm_clock_read+0x18/0x30
[  341.353914]  ? kvm_sched_clock_read+0x9/0x20
[  341.358338]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.363880]  ? check_preemption_disabled+0x48/0x280
[  341.368909]  irq_exit+0x17f/0x1c0
[  341.372373]  smp_apic_timer_interrupt+0x1cb/0x760
[  341.377222]  ? smp_call_function_single_interrupt+0x650/0x650
[  341.383110]  ? interrupt_entry+0xb5/0xc0
[  341.387178]  ? trace_hardirqs_off_caller+0xbb/0x310
[  341.392199]  ? trace_hardirqs_off_caller+0xbb/0x310
[  341.397219]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  341.402078]  ? trace_hardirqs_on_caller+0x310/0x310
[  341.407096]  ? trace_hardirqs_on_caller+0x310/0x310
[  341.412115]  ? task_prio+0x50/0x50
[  341.415657]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.421197]  ? check_preemption_disabled+0x48/0x280
[  341.426228]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  341.431112]  apic_timer_interrupt+0xf/0x20
[  341.435341]  </IRQ>
[  341.437589] RIP: 0010:dump_stack+0x358/0x39d
[  341.442009] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  341.460930] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  341.468664] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  341.475932] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  341.483207] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  341.490475] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  341.497742] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  341.505040]  ? dump_stack+0x34f/0x39d
[  341.508862]  ? dump_stack_print_info.cold.1+0x20/0x20
[  341.514066]  ? mark_held_locks+0x130/0x130
[  341.518306]  ? mark_held_locks+0x130/0x130
[  341.522550]  dump_header+0x27b/0xf72
[  341.526285]  ? pagefault_out_of_memory+0x197/0x197
[  341.531230]  ? __lock_acquire+0x62f/0x4c20
[  341.535495]  ? percpu_ref_get_many+0x240/0x240
[  341.540087]  ? print_usage_bug+0xc0/0xc0
[  341.544157]  ? zap_class+0x640/0x640
[  341.547878]  ? print_usage_bug+0xc0/0xc0
[  341.551939]  ? print_usage_bug+0xc0/0xc0
[  341.556018]  ? zap_class+0x640/0x640
[  341.559759]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  341.565329]  ? find_held_lock+0x36/0x1c0
[  341.569408]  ? mark_held_locks+0xc7/0x130
[  341.573591]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  341.578700]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  341.583806]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  341.588397]  ? trace_hardirqs_on+0xbd/0x310
[  341.592735]  ? kasan_check_read+0x11/0x20
[  341.596894]  ? ___ratelimit+0x3b4/0x672
[  341.600876]  ? trace_hardirqs_off_caller+0x310/0x310
[  341.605988]  ? trace_hardirqs_on+0x310/0x310
[  341.610401]  ? lock_downgrade+0x900/0x900
[  341.614555]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  341.619668]  ? ___ratelimit+0x3b9/0x672
[  341.623647]  ? idr_get_free+0xf70/0xf70
[  341.627648]  ? find_held_lock+0x36/0x1c0
[  341.631723]  oom_kill_process.cold.27+0x10/0x903
[  341.636487]  ? zap_class+0x640/0x640
[  341.640215]  ? check_preemption_disabled+0x48/0x280
[  341.645237]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  341.650183]  ? kasan_check_read+0x11/0x20
[  341.654348]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.659628]  ? oom_evaluate_task+0x540/0x540
[  341.664042]  ? find_held_lock+0x36/0x1c0
[  341.668118]  ? out_of_memory+0x974/0x1430
[  341.672288]  ? lock_downgrade+0x900/0x900
[  341.676439]  ? check_preemption_disabled+0x48/0x280
[  341.681461]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  341.686410]  ? kasan_check_read+0x11/0x20
[  341.690564]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.695843]  ? rcu_softirq_qs+0x20/0x20
[  341.699829]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.705371]  ? oom_evaluate_task+0x302/0x540
[  341.709782]  out_of_memory+0xa84/0x1430
[  341.713768]  ? oom_killer_disable+0x3a0/0x3a0
[  341.718272]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  341.723208]  ? __ww_mutex_check_waiters+0x160/0x160
[  341.728245]  __alloc_pages_slowpath+0x2354/0x2e10
[  341.733121]  ? warn_alloc+0x120/0x120
[  341.736928]  ? mark_held_locks+0x130/0x130
[  341.741195]  ? find_get_entry+0xaae/0x1120
[  341.745447]  ? filemap_map_pages+0x1a20/0x1a20
[  341.750061]  ? zap_class+0x640/0x640
[  341.753808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  341.759354]  ? check_preemption_disabled+0x48/0x280
[  341.764379]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.769921]  ? should_fail+0x22d/0xd01
[  341.773823]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  341.778936]  ? zap_class+0x640/0x640
[  341.782684]  ? __lock_is_held+0xb5/0x140
[  341.786767]  ? mark_held_locks+0x130/0x130
[  341.791006]  ? lock_release+0xa00/0xa00
[  341.794989]  ? perf_trace_sched_process_exec+0x860/0x860
[  341.800444]  ? xa_load+0x2ba/0x460
[  341.804007]  ? lock_downgrade+0x900/0x900
[  341.808165]  ? __might_sleep+0x95/0x190
[  341.812162]  __alloc_pages_nodemask+0xa80/0xde0
[  341.816861]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  341.821892]  ? __page_cache_alloc+0x191/0x5c0
[  341.826394]  ? xa_load+0x2e1/0x460
[  341.829936]  ? xa_clear_mark+0x40/0x40
[  341.833844]  ? zap_class+0x640/0x640
[  341.837567]  ? zap_class+0x640/0x640
[  341.841286]  ? zap_class+0x640/0x640
[  341.845075]  ? __do_page_cache_readahead+0x663/0x810
[  341.850189]  ? find_held_lock+0x36/0x1c0
[  341.854262]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  341.859815]  alloc_pages_current+0x173/0x350
[  341.864240]  __page_cache_alloc+0x38c/0x5c0
[  341.868565]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  341.873504]  ? kasan_check_read+0x11/0x20
[  341.877659]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.883132]  ? generic_perform_write+0x6a0/0x6a0
[  341.887893]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  341.893440]  ? check_preemption_disabled+0x48/0x280
[  341.898469]  filemap_fault+0x1595/0x25f0
[  341.902565]  ? __lock_page_or_retry+0xa00/0xa00
[  341.907245]  ? mark_held_locks+0x130/0x130
[  341.911494]  ? filemap_map_pages+0xd6b/0x1a20
[  341.916024]  ? lock_downgrade+0x900/0x900
[  341.920192]  ? check_preemption_disabled+0x48/0x280
[  341.925221]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  341.930159]  ? kasan_check_read+0x11/0x20
[  341.934319]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  341.939599]  ? rcu_softirq_qs+0x20/0x20
[  341.943594]  ? filemap_map_pages+0xd92/0x1a20
[  341.948105]  ? find_get_entries_tag+0x1400/0x1400
[  341.952956]  ? find_held_lock+0x36/0x1c0
[  341.957051]  ? lock_acquire+0x1ed/0x520
[  341.961030]  ? ext4_filemap_fault+0x7a/0xad
[  341.965365]  ? lock_release+0xa00/0xa00
[  341.969340]  ? perf_trace_sched_process_exec+0x860/0x860
[  341.974808]  ? print_usage_bug+0xc0/0xc0
[  341.978883]  ? print_usage_bug+0xc0/0xc0
[  341.982967]  ? down_read+0x8d/0x120
[  341.986598]  ? ext4_filemap_fault+0x7a/0xad
[  341.990927]  ? __down_interruptible+0x700/0x700
[  341.995614]  ext4_filemap_fault+0x82/0xad
[  341.999776]  __do_fault+0x100/0x6b0
[  342.003408]  ? find_held_lock+0x36/0x1c0
[  342.007476]  ? pmd_devmap_trans_unstable+0x220/0x220
[  342.012588]  ? mark_held_locks+0x130/0x130
[  342.016825]  ? mark_held_locks+0x130/0x130
[  342.021100]  ? kasan_check_read+0x11/0x20
[  342.025254]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  342.030802]  __handle_mm_fault+0x3ea0/0x5be0
[  342.035217]  ? perf_trace_lock+0x7a0/0x7a0
[  342.039463]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  342.044317]  ? __switch_to_asm+0x34/0x70
[  342.048382]  ? __switch_to_asm+0x34/0x70
[  342.052464]  ? zap_class+0x640/0x640
[  342.056218]  ? zap_class+0x640/0x640
[  342.059936]  ? __x64_sys_futex+0x53e/0x6a0
[  342.064188]  ? find_held_lock+0x36/0x1c0
[  342.068267]  ? handle_mm_fault+0x42a/0xc70
[  342.072514]  ? lock_downgrade+0x900/0x900
[  342.076676]  ? check_preemption_disabled+0x48/0x280
[  342.081702]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  342.086678]  ? kasan_check_read+0x11/0x20
[  342.090829]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  342.096125]  ? rcu_softirq_qs+0x20/0x20
[  342.100121]  ? trace_hardirqs_off_caller+0x310/0x310
[  342.105229]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  342.110777]  ? check_preemption_disabled+0x48/0x280
[  342.115806]  handle_mm_fault+0x54f/0xc70
[  342.119876]  ? __handle_mm_fault+0x5be0/0x5be0
[  342.124464]  ? find_vma+0x34/0x190
[  342.128020]  __do_page_fault+0x5e8/0xe60
[  342.132093]  ? trace_hardirqs_off+0xb8/0x310
[  342.136518]  do_page_fault+0xf2/0x7e0
[  342.140330]  ? vmalloc_sync_all+0x30/0x30
[  342.144480]  ? error_entry+0x70/0xd0
[  342.148197]  ? trace_hardirqs_off_caller+0xbb/0x310
[  342.153220]  ? trace_hardirqs_on_caller+0xc0/0x310
[  342.158160]  ? syscall_return_slowpath+0x5e0/0x5e0
[  342.163096]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  342.167957]  ? trace_hardirqs_on_caller+0x310/0x310
[  342.172989]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  342.178454]  ? prepare_exit_to_usermode+0x291/0x3b0
[  342.183478]  ? page_fault+0x8/0x30
[  342.187030]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  342.191889]  ? page_fault+0x8/0x30
[  342.195430]  page_fault+0x1e/0x30
[  342.198885] RIP: 0033:0x44b69a
[  342.202096] Code: Bad RIP value.
[  342.205458] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  342.210820] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  342.218117] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  342.225392] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  342.232663] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  342.239940] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  342.247251] warn_alloc_show_mem: 1 callbacks suppressed
[  342.247264] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  342.247266] Mem-Info:
[  342.247299] active_anon:47227 inactive_anon:190 isolated_anon:0
[  342.247299]  active_file:11 inactive_file:14 isolated_file:0
[  342.247299]  unevictable:0 dirty:0 writeback:0 unstable:0
[  342.247299]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  342.247299]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  342.247299]  free:13756 free_pcp:235 free_cma:0
[  342.252655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  342.259850] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  342.262250] Call Trace:
[  342.295139] 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
[  342.304515]  <IRQ>
[  342.332057] lowmem_reserve[]: 0 2818 6321 6321
[  342.334692]  dump_stack+0x244/0x39d
[  342.360798] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  342.362978]  ? dump_stack_print_info.cold.1+0x20/0x20
[  342.367517] lowmem_reserve[]: 0 0 3503 3503
[  342.371161]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.398478] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  342.403716]  ? do_raw_spin_lock+0x14f/0x350
[  342.408008] lowmem_reserve[]: 0 0 0 0
[  342.413577]  nmi_cpu_backtrace.cold.2+0x5c/0xa1
[  342.442471] 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
[  342.446817]  ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f
[  342.450605] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  342.455276]  nmi_trigger_cpumask_backtrace+0x1e8/0x22a
[  342.468798] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  342.474007]  arch_trigger_cpumask_backtrace+0x14/0x20
[  342.489268] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  342.494560]  rcu_dump_cpu_stacks+0x16f/0x1bc
[  342.509626] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  342.509637] 269 total pagecache pages
[  342.514857]  print_cpu_stall.cold.67+0x1f3/0x3c7
[  342.523682] 0 pages in swap cache
[  342.528104]  ? print_other_cpu_stall+0x160/0x160
[  342.536662] Swap cache stats: add 0, delete 0, find 0/0
[  342.540474]  ? print_usage_bug+0xc0/0xc0
[  342.545192] Free swap  = 0kB
[  342.545201] Total swap = 0kB
[  342.548655]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  342.553386] 1965979 pages RAM
[  342.558766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.562795] 0 pages HighMem/MovableOnly
[  342.565816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.568804] 342853 pages reserved
[  342.573736]  ? do_trace_rcu_torture_read+0x10/0x10
[  342.576814] 0 pages cma reserved
[  342.582388]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  342.586422] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  342.591875]  ? __lock_is_held+0xb5/0x140
[  342.591894]  ? __rcu_read_lock+0x50/0x50
[  342.591914]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.595417] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  342.600273]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.603616] syz-fuzzer cpuset=/ mems_allowed=0
[  342.608892]  ? check_preemption_disabled+0x48/0x280
[  342.654316]  rcu_check_callbacks+0xf3b/0x13f0
[  342.658830]  ? rcutree_dead_cpu+0x10/0x10
[  342.662991]  ? lock_downgrade+0x900/0x900
[  342.667152]  ? lock_release+0x930/0xa00
[  342.671144]  ? zap_class+0x640/0x640
[  342.674862]  ? mark_held_locks+0x130/0x130
[  342.679115]  ? zap_class+0x640/0x640
[  342.682838]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.688409]  ? pvclock_gtod_notify+0x2e3/0x3e0
[  342.693009]  ? kvm_set_tsc_khz+0x540/0x540
[  342.697261]  ? find_held_lock+0x36/0x1c0
[  342.701338]  ? zap_class+0x640/0x640
[  342.705062]  ? timekeeping_advance+0x3cc/0xc00
[  342.709659]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.715212]  ? check_preemption_disabled+0x48/0x280
[  342.720251]  ? trace_hardirqs_off+0xb8/0x310
[  342.724673]  ? __lock_is_held+0xb5/0x140
[  342.728747]  ? trace_hardirqs_on+0x310/0x310
[  342.733652]  ? check_preemption_disabled+0x48/0x280
[  342.739574]  ? raise_softirq+0x199/0x420
[  342.744154]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  342.749342]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  342.755550]  ? check_preemption_disabled+0x48/0x280
[  342.761384]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  342.767582]  ? hrtimer_run_queues+0x9a/0x400
[  342.772021]  ? run_local_timers+0x19b/0x230
[  342.776375]  ? timer_clear_idle+0x90/0x90
[  342.780527]  ? debug_smp_processor_id+0x1c/0x20
[  342.785210]  ? irqtime_account_process_tick.isra.6+0x114/0x490
[  342.791196]  ? account_process_tick+0x282/0x350
[  342.795890]  update_process_times+0x2d/0x70
[  342.800225]  tick_sched_handle+0x9f/0x180
[  342.804385]  tick_sched_timer+0x45/0x130
[  342.808458]  __hrtimer_run_queues+0x41c/0x10d0
[  342.813061]  ? tick_sched_do_timer+0x1a0/0x1a0
[  342.817660]  ? hrtimer_start_range_ns+0xe00/0xe00
[  342.822520]  ? pvclock_read_flags+0x160/0x160
[  342.827047]  ? trace_hardirqs_on+0x310/0x310
[  342.831464]  ? zap_class+0x640/0x640
[  342.835191]  ? kvm_clock_read+0x18/0x30
[  342.839174]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  342.844202]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  342.849666]  ? do_timer+0x50/0x50
[  342.853125]  ? rwlock_bug.part.2+0x90/0x90
[  342.857368]  ? trace_hardirqs_on+0x310/0x310
[  342.861785]  ? rcu_softirq_qs+0x20/0x20
[  342.865778]  hrtimer_interrupt+0x313/0x780
[  342.870042]  smp_apic_timer_interrupt+0x1a1/0x760
[  342.874897]  ? smp_call_function_single_interrupt+0x650/0x650
[  342.880791]  ? interrupt_entry+0xb5/0xc0
[  342.884877]  ? trace_hardirqs_off_caller+0xbb/0x310
[  342.889900]  ? ____cache_alloc_node+0x1c7/0x1e0
[  342.894580]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  342.899434]  ? trace_hardirqs_on_caller+0x310/0x310
[  342.904470]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  342.909359]  apic_timer_interrupt+0xf/0x20
[  342.913609] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  342.918999] Code: 3f 7e 0f 85 32 ff ff ff e8 75 1d 3e ff e9 28 ff ff ff e8 ec 52 c3 ff 48 83 3d f4 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 d2 ac
[  342.937934] RSP: 0018:ffff8801daf073d8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  342.945671] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff1003887b991
[  342.952960] RDX: 0000000000000000 RSI: ffff8801c43dcc90 RDI: 0000000000000286
[  342.960249] RBP: ffff8801daf07448 R08: ffff8801c43dcc88 R09: 0000000000000002
[  342.967557] R10: 0000000000000000 R11: ffff8801c43dc3c0 R12: ffff8801d9beec00
[  342.974834] R13: ffff8801d9beec00 R14: 0000000000000000 R15: 0000000000000286
[  342.982139]  ? apic_timer_interrupt+0xa/0x20
[  342.986601]  ? lockdep_hardirqs_on+0x296/0x5b0
[  342.991206]  __alloc_skb+0x119/0x770
[  342.994925]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  343.000320]  ? netdev_alloc_frag+0x1f0/0x1f0
[  343.004741]  ? vprintk_default+0x28/0x30
[  343.008807]  ? vprintk_func+0x85/0x181
[  343.012714]  ? printk+0xa7/0xcf
[  343.016001]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  343.020784]  new_skb+0x26/0x1c0
[  343.024075]  aoecmd_cfg+0x279/0x7f0
[  343.027709]  ? find_held_lock+0x36/0x1c0
[  343.031772]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  343.036130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.041702]  ? __lock_is_held+0xb5/0x140
[  343.045792]  discover_timer+0x50/0x60
[  343.049606]  call_timer_fn+0x272/0x920
[  343.053502]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  343.058352]  ? process_timeout+0x40/0x40
[  343.062444]  ? __run_timers+0x7da/0xc70
[  343.066434]  ? _raw_spin_unlock_irq+0x27/0x80
[  343.070934]  ? _raw_spin_unlock_irq+0x27/0x80
[  343.075445]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  343.080295]  ? lockdep_hardirqs_on+0x296/0x5b0
[  343.084894]  ? trace_hardirqs_on+0xbd/0x310
[  343.089226]  ? kasan_check_read+0x11/0x20
[  343.093378]  ? __run_timers+0x7da/0xc70
[  343.097364]  ? trace_hardirqs_off_caller+0x310/0x310
[  343.102501]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  343.107356]  __run_timers+0x7e5/0xc70
[  343.111178]  ? timer_fixup_init+0x70/0x70
[  343.115344]  ? lock_acquire+0x1ed/0x520
[  343.119326]  ? zap_class+0x640/0x640
[  343.123046]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.128599]  ? kasan_check_read+0x11/0x20
[  343.132751]  ? do_raw_spin_lock+0x14f/0x350
[  343.137091]  ? find_held_lock+0x36/0x1c0
[  343.141161]  ? zap_class+0x640/0x640
[  343.144901]  ? pvclock_read_flags+0x160/0x160
[  343.149403]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.154964]  ? check_preemption_disabled+0x48/0x280
[  343.160015]  ? __lock_is_held+0xb5/0x140
[  343.164081]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.169654]  ? check_preemption_disabled+0x48/0x280
[  343.174706]  run_timer_softirq+0x52/0xb0
[  343.178787]  ? rcu_read_lock_sched_held+0x14f/0x180
[  343.183821]  __do_softirq+0x308/0xb7e
[  343.187637]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  343.192140]  ? lock_downgrade+0x900/0x900
[  343.196297]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  343.201413]  ? pvclock_read_flags+0x160/0x160
[  343.205912]  ? lapic_next_event+0x5a/0x90
[  343.210077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.215630]  ? kvm_clock_read+0x18/0x30
[  343.219605]  ? kvm_sched_clock_read+0x9/0x20
[  343.224023]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.229572]  ? check_preemption_disabled+0x48/0x280
[  343.234619]  irq_exit+0x17f/0x1c0
[  343.238080]  smp_apic_timer_interrupt+0x1cb/0x760
[  343.242923]  ? smp_call_function_single_interrupt+0x159/0x650
[  343.248820]  ? smp_call_function_single_interrupt+0x650/0x650
[  343.254708]  ? interrupt_entry+0xb5/0xc0
[  343.258788]  ? trace_hardirqs_off_caller+0xbb/0x310
[  343.263804]  ? trace_hardirqs_off_caller+0xbb/0x310
[  343.268824]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  343.273683]  ? trace_hardirqs_on_caller+0x310/0x310
[  343.278709]  ? trace_hardirqs_on_caller+0x310/0x310
[  343.283759]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  343.288618]  apic_timer_interrupt+0xf/0x20
[  343.292847]  </IRQ>
[  343.295091] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  343.300027] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  343.318942] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  343.326693] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  343.333976] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  343.341243] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  343.348605] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  343.355877] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  343.363198]  skb_clone+0x1bb/0x500
[  343.366744]  ? skb_split+0x11e0/0x11e0
[  343.370644]  ? check_preemption_disabled+0x48/0x280
[  343.375688]  ? __this_cpu_preempt_check+0x1c/0x20
[  343.380541]  ? __bpf_redirect+0x54b/0xb20
[  343.384705]  bpf_clone_redirect+0xb9/0x490
[  343.388961]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  343.393988]  ? __sched_text_start+0x8/0x8
[  343.398142]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  343.402914]  ? find_held_lock+0x36/0x1c0
[  343.406993]  ? lock_acquire+0x1ed/0x520
[  343.410983]  ? bpf_test_run+0x3cb/0x780
[  343.414974]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.420518]  ? check_preemption_disabled+0x48/0x280
[  343.425558]  ? kasan_check_read+0x11/0x20
[  343.429714]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  343.434994]  ? rcu_softirq_qs+0x20/0x20
[  343.438978]  ? preempt_schedule+0x4d/0x60
[  343.443134]  ? ___preempt_schedule+0x16/0x18
[  343.447565]  ? bpf_test_run+0x25d/0x780
[  343.451568]  ? netlink_diag_dump+0x2a0/0x2a0
[  343.455987]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  343.460756]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  343.465523]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  343.470378]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  343.475920]  ? fput+0x130/0x1a0
[  343.479210]  ? __bpf_prog_get+0x9b/0x290
[  343.483288]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  343.488138]  ? bpf_prog_test_run+0x130/0x1a0
[  343.492553]  ? __x64_sys_bpf+0x3d8/0x520
[  343.496615]  ? bpf_prog_get+0x20/0x20
[  343.500443]  ? do_syscall_64+0x1b9/0x820
[  343.504508]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  343.509878]  ? syscall_return_slowpath+0x5e0/0x5e0
[  343.514812]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  343.519690]  ? trace_hardirqs_on_caller+0x310/0x310
[  343.524710]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  343.529729]  ? prepare_exit_to_usermode+0x291/0x3b0
[  343.534772]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  343.539629]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  343.545019] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  343.545441] aoe: skb alloc failure
[  343.551980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  343.551997] Call Trace:
[  343.552003]  <IRQ>
[  343.552023]  dump_stack+0x244/0x39d
[  343.552042]  ? dump_stack_print_info.cold.1+0x20/0x20
[  343.555623] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  343.564957]  warn_alloc.cold.116+0xb7/0x1bd
[  343.567514] syz-executor4 cpuset=syz4 mems_allowed=0
[  343.569660]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  343.603147]  ? lock_downgrade+0x900/0x900
[  343.607306]  ? trace_hardirqs_off+0xb8/0x310
[  343.611723]  ? trace_hardirqs_off+0xb8/0x310
[  343.616144]  __alloc_pages_slowpath+0x26e8/0x2e10
[  343.621022]  ? warn_alloc+0x120/0x120
[  343.624833]  ? print_usage_bug+0xc0/0xc0
[  343.628899]  ? warn_alloc+0x120/0x120
[  343.632712]  ? warn_alloc+0x120/0x120
[  343.636519]  ? print_usage_bug+0xc0/0xc0
[  343.640588]  ? print_usage_bug+0xc0/0xc0
[  343.644656]  ? __lock_acquire+0x62f/0x4c20
[  343.648899]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  343.654440]  ? should_fail+0x22d/0xd01
[  343.658332]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  343.663444]  ? __lock_acquire+0x62f/0x4c20
[  343.667684]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  343.672801]  ? __lock_acquire+0x62f/0x4c20
[  343.677039]  ? should_fail+0x22d/0xd01
[  343.680933]  ? find_held_lock+0x36/0x1c0
[  343.685014]  ? mark_held_locks+0x130/0x130
[  343.689259]  ? mark_held_locks+0x130/0x130
[  343.693493]  ? zap_class+0x640/0x640
[  343.697219]  ? zap_class+0x640/0x640
[  343.700973]  ? print_usage_bug+0xc0/0xc0
[  343.705037]  ? do_raw_spin_unlock+0xa7/0x330
[  343.709450]  ? zap_class+0x640/0x640
[  343.713194]  ? print_usage_bug+0xc0/0xc0
[  343.717256]  ? wq_watchdog_touch+0x9c/0xfe
[  343.721502]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.727044]  ? check_preemption_disabled+0x48/0x280
[  343.732085]  ? __lock_is_held+0xb5/0x140
[  343.736161]  __alloc_pages_nodemask+0xa80/0xde0
[  343.740834]  ? zap_class+0x640/0x640
[  343.744551]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  343.749583]  ? find_held_lock+0x36/0x1c0
[  343.753672]  ? ____cache_alloc_node+0x1c7/0x1e0
[  343.758389]  ? lock_downgrade+0x900/0x900
[  343.762550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.768102]  cache_grow_begin+0xa5/0x8c0
[  343.772166]  ? do_raw_spin_unlock+0xa7/0x330
[  343.776587]  fallback_alloc+0x204/0x2e0
[  343.780571]  ____cache_alloc_node+0x1c7/0x1e0
[  343.785080]  kmem_cache_alloc_node+0xe3/0x730
[  343.789602]  ? ipv6_get_ifaddr+0x42e/0x620
[  343.793849]  __alloc_skb+0x119/0x770
[  343.797563]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  343.802847]  ? netdev_alloc_frag+0x1f0/0x1f0
[  343.807268]  ? lock_downgrade+0x900/0x900
[  343.811430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.816976]  ? refcount_sub_and_test_checked+0x203/0x310
[  343.822440]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  343.827893]  ? addrconf_rs_timer+0x690/0x690
[  343.832333]  ndisc_alloc_skb+0x144/0x340
[  343.836400]  ndisc_send_rs+0x331/0x6e0
[  343.840293]  addrconf_rs_timer+0x314/0x690
[  343.844532]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  343.848835]  call_timer_fn+0x272/0x920
[  343.852748]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  343.856994]  ? process_timeout+0x40/0x40
[  343.861080]  ? mark_held_locks+0xc7/0x130
[  343.865273]  ? _raw_spin_unlock_irq+0x27/0x80
[  343.869771]  ? _raw_spin_unlock_irq+0x27/0x80
[  343.874273]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  343.878550]  ? lockdep_hardirqs_on+0x296/0x5b0
[  343.883178]  ? trace_hardirqs_on+0xbd/0x310
[  343.887503]  ? kasan_check_read+0x11/0x20
[  343.891653]  ? __run_timers+0x7da/0xc70
[  343.895628]  ? trace_hardirqs_off_caller+0x310/0x310
[  343.900749]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  343.904990]  __run_timers+0x7e5/0xc70
[  343.908808]  ? timer_fixup_init+0x70/0x70
[  343.912966]  ? kasan_check_read+0x11/0x20
[  343.917118]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  343.922397]  ? rcu_softirq_qs+0x20/0x20
[  343.926381]  ? mark_held_locks+0xc7/0x130
[  343.930535]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  343.935331]  ? retint_kernel+0x2d/0x2d
[  343.939222]  ? trace_hardirqs_on_caller+0xc0/0x310
[  343.944167]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  343.948928]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  343.954387]  ? zap_class+0x640/0x640
[  343.958111]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.963652]  ? check_preemption_disabled+0x48/0x280
[  343.968686]  ? __lock_is_held+0xb5/0x140
[  343.972754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  343.978294]  ? check_preemption_disabled+0x48/0x280
[  343.983318]  run_timer_softirq+0x52/0xb0
[  343.987386]  ? rcu_read_lock_sched_held+0x14f/0x180
[  343.992407]  __do_softirq+0x308/0xb7e
[  343.996212]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  344.000722]  ? lock_downgrade+0x900/0x900
[  344.004881]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  344.010004]  ? pvclock_read_flags+0x160/0x160
[  344.014515]  ? lapic_next_event+0x5a/0x90
[  344.018672]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.024221]  ? kvm_clock_read+0x18/0x30
[  344.028209]  ? kvm_sched_clock_read+0x9/0x20
[  344.032626]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  344.038185]  ? check_preemption_disabled+0x48/0x280
[  344.043227]  irq_exit+0x17f/0x1c0
[  344.046729]  smp_apic_timer_interrupt+0x1cb/0x760
[  344.051589]  ? smp_call_function_single_interrupt+0x650/0x650
[  344.057475]  ? interrupt_entry+0xb5/0xc0
[  344.061543]  ? trace_hardirqs_off_caller+0xbb/0x310
[  344.066561]  ? trace_hardirqs_off_caller+0xbb/0x310
[  344.071587]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  344.076431]  ? trace_hardirqs_on_caller+0x310/0x310
[  344.081450]  ? trace_hardirqs_on_caller+0x310/0x310
[  344.086469]  ? task_prio+0x50/0x50
[  344.090018]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  344.095564]  ? check_preemption_disabled+0x48/0x280
[  344.100591]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  344.105447]  apic_timer_interrupt+0xf/0x20
[  344.109676]  </IRQ>
[  344.111919] RIP: 0010:dump_stack+0x358/0x39d
[  344.116338] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  344.135250] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  344.142978] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  344.150253] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  344.157522] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  344.164799] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  344.172078] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  344.179391]  ? dump_stack+0x34f/0x39d
[  344.183215]  ? dump_stack_print_info.cold.1+0x20/0x20
[  344.188417]  ? mark_held_locks+0x130/0x130
[  344.192659]  ? mark_held_locks+0x130/0x130
[  344.196904]  dump_header+0x27b/0xf72
[  344.200637]  ? pagefault_out_of_memory+0x197/0x197
[  344.205578]  ? __lock_acquire+0x62f/0x4c20
[  344.209826]  ? percpu_ref_get_many+0x240/0x240
[  344.214418]  ? print_usage_bug+0xc0/0xc0
[  344.218495]  ? zap_class+0x640/0x640
[  344.222214]  ? print_usage_bug+0xc0/0xc0
[  344.226275]  ? print_usage_bug+0xc0/0xc0
[  344.230340]  ? zap_class+0x640/0x640
[  344.234067]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.239613]  ? find_held_lock+0x36/0x1c0
[  344.243688]  ? mark_held_locks+0xc7/0x130
[  344.247843]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  344.252959]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  344.258093]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  344.262703]  ? trace_hardirqs_on+0xbd/0x310
[  344.267029]  ? kasan_check_read+0x11/0x20
[  344.271183]  ? ___ratelimit+0x3b4/0x672
[  344.275162]  ? trace_hardirqs_off_caller+0x310/0x310
[  344.280274]  ? trace_hardirqs_on+0x310/0x310
[  344.284689]  ? lock_downgrade+0x900/0x900
[  344.288862]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  344.293977]  ? ___ratelimit+0x3b9/0x672
[  344.297961]  ? idr_get_free+0xf70/0xf70
[  344.301941]  ? find_held_lock+0x36/0x1c0
[  344.306026]  oom_kill_process.cold.27+0x10/0x903
[  344.310790]  ? zap_class+0x640/0x640
[  344.314507]  ? check_preemption_disabled+0x48/0x280
[  344.319531]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  344.324470]  ? kasan_check_read+0x11/0x20
[  344.328622]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  344.333918]  ? oom_evaluate_task+0x540/0x540
[  344.338343]  ? find_held_lock+0x36/0x1c0
[  344.342414]  ? out_of_memory+0x974/0x1430
[  344.346762]  ? lock_downgrade+0x900/0x900
[  344.350919]  ? check_preemption_disabled+0x48/0x280
[  344.355961]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  344.360898]  ? kasan_check_read+0x11/0x20
[  344.365056]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  344.370368]  ? rcu_softirq_qs+0x20/0x20
[  344.374391]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  344.379969]  ? oom_evaluate_task+0x302/0x540
[  344.384413]  out_of_memory+0xa84/0x1430
[  344.388400]  ? oom_killer_disable+0x3a0/0x3a0
[  344.392920]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  344.397897]  ? __ww_mutex_check_waiters+0x160/0x160
[  344.402939]  __alloc_pages_slowpath+0x2354/0x2e10
[  344.407842]  ? warn_alloc+0x120/0x120
[  344.411653]  ? mark_held_locks+0x130/0x130
[  344.415902]  ? find_get_entry+0xaae/0x1120
[  344.420154]  ? filemap_map_pages+0x1a20/0x1a20
[  344.424749]  ? zap_class+0x640/0x640
[  344.428473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  344.434020]  ? check_preemption_disabled+0x48/0x280
[  344.439056]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  344.444602]  ? should_fail+0x22d/0xd01
[  344.448500]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  344.453617]  ? zap_class+0x640/0x640
[  344.457356]  ? __lock_is_held+0xb5/0x140
[  344.461430]  ? mark_held_locks+0x130/0x130
[  344.465673]  ? lock_release+0xa00/0xa00
[  344.469654]  ? perf_trace_sched_process_exec+0x860/0x860
[  344.475111]  ? xa_load+0x2ba/0x460
[  344.478655]  ? lock_downgrade+0x900/0x900
[  344.482808]  ? __might_sleep+0x95/0x190
[  344.486791]  __alloc_pages_nodemask+0xa80/0xde0
[  344.491497]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  344.496529]  ? __page_cache_alloc+0x191/0x5c0
[  344.501029]  ? xa_load+0x2e1/0x460
[  344.504577]  ? xa_clear_mark+0x40/0x40
[  344.508472]  ? zap_class+0x640/0x640
[  344.512195]  ? zap_class+0x640/0x640
[  344.515910]  ? zap_class+0x640/0x640
[  344.519632]  ? __do_page_cache_readahead+0x663/0x810
[  344.524748]  ? find_held_lock+0x36/0x1c0
[  344.528822]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  344.534371]  alloc_pages_current+0x173/0x350
[  344.538794]  __page_cache_alloc+0x38c/0x5c0
[  344.543119]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  344.548067]  ? kasan_check_read+0x11/0x20
[  344.552230]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  344.557518]  ? generic_perform_write+0x6a0/0x6a0
[  344.562278]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  344.567825]  ? check_preemption_disabled+0x48/0x280
[  344.572862]  filemap_fault+0x1595/0x25f0
[  344.576939]  ? __lock_page_or_retry+0xa00/0xa00
[  344.581644]  ? mark_held_locks+0x130/0x130
[  344.585892]  ? filemap_map_pages+0xd6b/0x1a20
[  344.590412]  ? lock_downgrade+0x900/0x900
[  344.594580]  ? check_preemption_disabled+0x48/0x280
[  344.599604]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  344.604540]  ? kasan_check_read+0x11/0x20
[  344.608693]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  344.613997]  ? rcu_softirq_qs+0x20/0x20
[  344.617994]  ? filemap_map_pages+0xd92/0x1a20
[  344.622509]  ? find_get_entries_tag+0x1400/0x1400
[  344.627356]  ? find_held_lock+0x36/0x1c0
[  344.631449]  ? lock_acquire+0x1ed/0x520
[  344.635430]  ? ext4_filemap_fault+0x7a/0xad
[  344.639759]  ? lock_release+0xa00/0xa00
[  344.643748]  ? perf_trace_sched_process_exec+0x860/0x860
[  344.649211]  ? print_usage_bug+0xc0/0xc0
[  344.653290]  ? print_usage_bug+0xc0/0xc0
[  344.657370]  ? down_read+0x8d/0x120
[  344.660999]  ? ext4_filemap_fault+0x7a/0xad
[  344.665329]  ? __down_interruptible+0x700/0x700
[  344.670014]  ext4_filemap_fault+0x82/0xad
[  344.674212]  __do_fault+0x100/0x6b0
[  344.677855]  ? find_held_lock+0x36/0x1c0
[  344.681926]  ? pmd_devmap_trans_unstable+0x220/0x220
[  344.687057]  ? mark_held_locks+0x130/0x130
[  344.691301]  ? mark_held_locks+0x130/0x130
[  344.695552]  ? kasan_check_read+0x11/0x20
[  344.699706]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  344.705256]  __handle_mm_fault+0x3ea0/0x5be0
[  344.709693]  ? perf_trace_lock+0x7a0/0x7a0
[  344.713940]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  344.718813]  ? __switch_to_asm+0x34/0x70
[  344.722878]  ? __switch_to_asm+0x34/0x70
[  344.726963]  ? zap_class+0x640/0x640
[  344.730678]  ? zap_class+0x640/0x640
[  344.734395]  ? __x64_sys_futex+0x53e/0x6a0
[  344.738643]  ? find_held_lock+0x36/0x1c0
[  344.742756]  ? handle_mm_fault+0x42a/0xc70
[  344.747042]  ? lock_downgrade+0x900/0x900
[  344.751588]  ? check_preemption_disabled+0x48/0x280
[  344.756627]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  344.761563]  ? kasan_check_read+0x11/0x20
[  344.765715]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  344.771001]  ? rcu_softirq_qs+0x20/0x20
[  344.775014]  ? trace_hardirqs_off_caller+0x310/0x310
[  344.780145]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  344.785696]  ? check_preemption_disabled+0x48/0x280
[  344.790730]  handle_mm_fault+0x54f/0xc70
[  344.794812]  ? __handle_mm_fault+0x5be0/0x5be0
[  344.799407]  ? find_vma+0x34/0x190
[  344.802965]  __do_page_fault+0x5e8/0xe60
[  344.807035]  ? trace_hardirqs_off+0xb8/0x310
[  344.811463]  do_page_fault+0xf2/0x7e0
[  344.815270]  ? vmalloc_sync_all+0x30/0x30
[  344.819427]  ? error_entry+0x70/0xd0
[  344.823148]  ? trace_hardirqs_off_caller+0xbb/0x310
[  344.828168]  ? trace_hardirqs_on_caller+0xc0/0x310
[  344.833101]  ? syscall_return_slowpath+0x5e0/0x5e0
[  344.838036]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  344.842896]  ? trace_hardirqs_on_caller+0x310/0x310
[  344.847917]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  344.853428]  ? prepare_exit_to_usermode+0x291/0x3b0
[  344.858463]  ? page_fault+0x8/0x30
[  344.862015]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  344.866882]  ? page_fault+0x8/0x30
[  344.870444]  page_fault+0x1e/0x30
[  344.873904] RIP: 0033:0x44b69a
[  344.877131] Code: Bad RIP value.
[  344.880493] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  344.885876] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  344.893151] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  344.900433] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  344.907707] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  344.915029] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  344.922341] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  344.922344] Mem-Info:
[  344.922377] active_anon:47227 inactive_anon:190 isolated_anon:0
[  344.922377]  active_file:11 inactive_file:14 isolated_file:0
[  344.922377]  unevictable:0 dirty:0 writeback:0 unstable:0
[  344.922377]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  344.922377]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  344.922377]  free:13756 free_pcp:235 free_cma:0
[  344.929559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  344.932013] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  344.964883] Call Trace:
[  344.974244] 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
[  345.001776]  <IRQ>
[  345.004361] lowmem_reserve[]: 0 2818 6321 6321
[  345.030494]  dump_stack+0x244/0x39d
[  345.032621] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  345.037208]  ? dump_stack_print_info.cold.1+0x20/0x20
[  345.040810] lowmem_reserve[]: 0 0 3503 3503
[  345.068165]  warn_alloc.cold.116+0xb7/0x1bd
[  345.073330] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  345.077649]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  345.081937] lowmem_reserve[]: 0 0 0 0
[  345.110870]  ? lock_downgrade+0x900/0x900
[  345.115705] 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
[  345.119534]  ? trace_hardirqs_off+0xb8/0x310
[  345.123666] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  345.137209]  ? trace_hardirqs_off+0xb8/0x310
[  345.141592] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  345.156881]  __alloc_pages_slowpath+0x26e8/0x2e10
[  345.161286] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  345.176422]  ? warn_alloc+0x120/0x120
[  345.181236] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  345.181245] 269 total pagecache pages
[  345.190102]  ? warn_alloc+0x120/0x120
[  345.193884] 0 pages in swap cache
[  345.202473]  ? __lock_acquire+0x62f/0x4c20
[  345.206249] Swap cache stats: add 0, delete 0, find 0/0
[  345.210046]  ? warn_alloc+0x120/0x120
[  345.213480] Free swap  = 0kB
[  345.217714]  ? print_usage_bug+0xc0/0xc0
[  345.223045] Total swap = 0kB
[  345.223060] 1965979 pages RAM
[  345.226854]  ? print_usage_bug+0xc0/0xc0
[  345.229849] 0 pages HighMem/MovableOnly
[  345.233923]  ? mark_held_locks+0x130/0x130
[  345.236916] 342853 pages reserved
[  345.240038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  345.244079] 0 pages cma reserved
[  345.248069]  ? should_fail+0x22d/0xd01
[  345.248088]  ? zap_class+0x640/0x640
[  345.252377] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  345.255754]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  345.262265] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  345.264634]  ? __lock_acquire+0x62f/0x4c20
[  345.268506] syz-fuzzer cpuset=/ mems_allowed=0
[  345.272233]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  345.307966]  ? should_fail+0x22d/0xd01
[  345.311873]  ? mark_held_locks+0x130/0x130
[  345.316117]  ? mark_held_locks+0x130/0x130
[  345.320355]  ? lock_downgrade+0x900/0x900
[  345.324520]  ? zap_class+0x640/0x640
[  345.328255]  ? zap_class+0x640/0x640
[  345.331990]  ? zap_class+0x640/0x640
[  345.335703]  ? do_raw_spin_unlock+0xa7/0x330
[  345.340118]  ? trace_hardirqs_on+0x310/0x310
[  345.344531]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.350077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.355633]  ? check_preemption_disabled+0x48/0x280
[  345.360666]  ? __lock_is_held+0xb5/0x140
[  345.364738]  __alloc_pages_nodemask+0xa80/0xde0
[  345.369434]  ? zap_class+0x640/0x640
[  345.373169]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  345.378206]  ? find_held_lock+0x36/0x1c0
[  345.382287]  ? ____cache_alloc_node+0x1c7/0x1e0
[  345.386974]  ? lock_downgrade+0x900/0x900
[  345.391144]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.396696]  cache_grow_begin+0xa5/0x8c0
[  345.400774]  ? do_raw_spin_unlock+0xa7/0x330
[  345.405194]  fallback_alloc+0x204/0x2e0
[  345.409182]  ____cache_alloc_node+0x1c7/0x1e0
[  345.413684]  kmem_cache_alloc_node+0xe3/0x730
[  345.418187]  ? lockdep_hardirqs_on+0x296/0x5b0
[  345.422795]  __alloc_skb+0x119/0x770
[  345.426512]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  345.431889]  ? netdev_alloc_frag+0x1f0/0x1f0
[  345.436323]  ? vprintk_default+0x28/0x30
[  345.440386]  ? vprintk_func+0x85/0x181
[  345.444281]  ? printk+0xa7/0xcf
[  345.447566]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  345.452336]  new_skb+0x26/0x1c0
[  345.455617]  aoecmd_cfg+0x279/0x7f0
[  345.459258]  ? find_held_lock+0x36/0x1c0
[  345.463349]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  345.467688]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.473241]  ? __lock_is_held+0xb5/0x140
[  345.477320]  discover_timer+0x50/0x60
[  345.481129]  call_timer_fn+0x272/0x920
[  345.485025]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  345.489883]  ? process_timeout+0x40/0x40
[  345.493962]  ? __run_timers+0x7da/0xc70
[  345.497945]  ? _raw_spin_unlock_irq+0x27/0x80
[  345.502455]  ? _raw_spin_unlock_irq+0x27/0x80
[  345.506963]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  345.511845]  ? lockdep_hardirqs_on+0x296/0x5b0
[  345.516433]  ? trace_hardirqs_on+0xbd/0x310
[  345.520756]  ? kasan_check_read+0x11/0x20
[  345.524908]  ? __run_timers+0x7da/0xc70
[  345.528888]  ? trace_hardirqs_off_caller+0x310/0x310
[  345.534013]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  345.538862]  __run_timers+0x7e5/0xc70
[  345.542685]  ? timer_fixup_init+0x70/0x70
[  345.546874]  ? lock_acquire+0x1ed/0x520
[  345.550855]  ? zap_class+0x640/0x640
[  345.554575]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.560150]  ? kasan_check_read+0x11/0x20
[  345.564316]  ? do_raw_spin_lock+0x14f/0x350
[  345.568653]  ? find_held_lock+0x36/0x1c0
[  345.572722]  ? zap_class+0x640/0x640
[  345.576446]  ? pvclock_read_flags+0x160/0x160
[  345.581065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.586611]  ? check_preemption_disabled+0x48/0x280
[  345.591645]  ? __lock_is_held+0xb5/0x140
[  345.595761]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.601306]  ? check_preemption_disabled+0x48/0x280
[  345.606339]  run_timer_softirq+0x52/0xb0
[  345.610412]  ? rcu_read_lock_sched_held+0x14f/0x180
[  345.615435]  __do_softirq+0x308/0xb7e
[  345.619249]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  345.623750]  ? lock_downgrade+0x900/0x900
[  345.627913]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  345.633148]  ? pvclock_read_flags+0x160/0x160
[  345.637649]  ? lapic_next_event+0x5a/0x90
[  345.641814]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.647365]  ? kvm_clock_read+0x18/0x30
[  345.651350]  ? kvm_sched_clock_read+0x9/0x20
[  345.655773]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.661332]  ? check_preemption_disabled+0x48/0x280
[  345.666370]  irq_exit+0x17f/0x1c0
[  345.669834]  smp_apic_timer_interrupt+0x1cb/0x760
[  345.674681]  ? smp_call_function_single_interrupt+0x159/0x650
[  345.680586]  ? smp_call_function_single_interrupt+0x650/0x650
[  345.686497]  ? interrupt_entry+0xb5/0xc0
[  345.690570]  ? trace_hardirqs_off_caller+0xbb/0x310
[  345.695616]  ? trace_hardirqs_off_caller+0xbb/0x310
[  345.700662]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.705510]  ? trace_hardirqs_on_caller+0x310/0x310
[  345.710543]  ? trace_hardirqs_on_caller+0x310/0x310
[  345.715592]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.720452]  apic_timer_interrupt+0xf/0x20
[  345.724689]  </IRQ>
[  345.726933] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  345.731882] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  345.750804] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  345.758525] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  345.765802] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  345.773092] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  345.780369] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  345.787640] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  345.794975]  skb_clone+0x1bb/0x500
[  345.798524]  ? skb_split+0x11e0/0x11e0
[  345.802432]  ? check_preemption_disabled+0x48/0x280
[  345.807465]  ? __this_cpu_preempt_check+0x1c/0x20
[  345.812313]  ? __bpf_redirect+0x54b/0xb20
[  345.816471]  bpf_clone_redirect+0xb9/0x490
[  345.820719]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  345.825755]  ? __sched_text_start+0x8/0x8
[  345.829913]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  345.834707]  ? find_held_lock+0x36/0x1c0
[  345.838782]  ? lock_acquire+0x1ed/0x520
[  345.842762]  ? bpf_test_run+0x3cb/0x780
[  345.846742]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  345.852286]  ? check_preemption_disabled+0x48/0x280
[  345.857318]  ? kasan_check_read+0x11/0x20
[  345.861473]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  345.866754]  ? rcu_softirq_qs+0x20/0x20
[  345.870753]  ? preempt_schedule+0x4d/0x60
[  345.874917]  ? ___preempt_schedule+0x16/0x18
[  345.879362]  ? bpf_test_run+0x25d/0x780
[  345.883880]  ? netlink_diag_dump+0x2a0/0x2a0
[  345.888299]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  345.893088]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  345.897866]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  345.902715]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  345.908264]  ? fput+0x130/0x1a0
[  345.911555]  ? __bpf_prog_get+0x9b/0x290
[  345.915628]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  345.920494]  ? bpf_prog_test_run+0x130/0x1a0
[  345.924916]  ? __x64_sys_bpf+0x3d8/0x520
[  345.928989]  ? bpf_prog_get+0x20/0x20
[  345.932815]  ? do_syscall_64+0x1b9/0x820
[  345.936879]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  345.942261]  ? syscall_return_slowpath+0x5e0/0x5e0
[  345.947192]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.952046]  ? trace_hardirqs_on_caller+0x310/0x310
[  345.957073]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  345.962101]  ? prepare_exit_to_usermode+0x291/0x3b0
[  345.967126]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  345.971992]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  345.977378] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  345.977461] aoe: skb alloc failure
[  345.984317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  345.984323] Call Trace:
[  345.984331]  <IRQ>
[  345.984353]  dump_stack+0x244/0x39d
[  345.984371]  ? dump_stack_print_info.cold.1+0x20/0x20
[  345.984399]  warn_alloc.cold.116+0xb7/0x1bd
[  345.987963] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  345.997297]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  345.999860] syz-executor4 cpuset=syz4 mems_allowed=0
[  346.002011]  ? lock_downgrade+0x900/0x900
[  346.039649]  ? trace_hardirqs_off+0xb8/0x310
[  346.044082]  ? trace_hardirqs_off+0xb8/0x310
[  346.048511]  __alloc_pages_slowpath+0x26e8/0x2e10
[  346.053399]  ? warn_alloc+0x120/0x120
[  346.057210]  ? warn_alloc+0x120/0x120
[  346.061022]  ? lockdep_on+0x50/0x50
[  346.064672]  ? warn_alloc+0x120/0x120
[  346.068481]  ? print_usage_bug+0xc0/0xc0
[  346.072556]  ? __save_stack_trace+0x8d/0xf0
[  346.076883]  ? print_usage_bug+0xc0/0xc0
[  346.080963]  ? kasan_check_read+0x11/0x20
[  346.085130]  ? trace_event_raw_event_lock_acquire+0x440/0x440
[  346.091030]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.096584]  ? should_fail+0x22d/0xd01
[  346.100508]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  346.105621]  ? __lock_acquire+0x62f/0x4c20
[  346.109864]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  346.114976]  ? __lock_acquire+0x62f/0x4c20
[  346.119215]  ? should_fail+0x22d/0xd01
[  346.123119]  ? mark_held_locks+0x130/0x130
[  346.127381]  ? mark_held_locks+0x130/0x130
[  346.131628]  ? zap_class+0x640/0x640
[  346.135347]  ? print_usage_bug+0xc0/0xc0
[  346.139418]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.144971]  ? check_preemption_disabled+0x48/0x280
[  346.150060]  ? __lock_is_held+0xb5/0x140
[  346.154134]  __alloc_pages_nodemask+0xa80/0xde0
[  346.158807]  ? zap_class+0x640/0x640
[  346.162548]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  346.167585]  ? find_held_lock+0x36/0x1c0
[  346.171673]  ? ____cache_alloc_node+0x1c7/0x1e0
[  346.176351]  ? lock_downgrade+0x900/0x900
[  346.180512]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.186072]  cache_grow_begin+0xa5/0x8c0
[  346.190143]  ? do_raw_spin_unlock+0xa7/0x330
[  346.194574]  fallback_alloc+0x204/0x2e0
[  346.198560]  ____cache_alloc_node+0x1c7/0x1e0
[  346.203074]  kmem_cache_alloc_node+0xe3/0x730
[  346.207582]  ? ipv6_get_ifaddr+0x42e/0x620
[  346.211833]  __alloc_skb+0x119/0x770
[  346.215554]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.220847]  ? netdev_alloc_frag+0x1f0/0x1f0
[  346.225275]  ? lock_downgrade+0x900/0x900
[  346.229442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.235013]  ? refcount_sub_and_test_checked+0x203/0x310
[  346.240479]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  346.245939]  ? addrconf_rs_timer+0x690/0x690
[  346.250369]  ndisc_alloc_skb+0x144/0x340
[  346.254441]  ndisc_send_rs+0x331/0x6e0
[  346.258356]  addrconf_rs_timer+0x314/0x690
[  346.262612]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  346.266866]  call_timer_fn+0x272/0x920
[  346.270754]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  346.274991]  ? process_timeout+0x40/0x40
[  346.279083]  ? mark_held_locks+0xc7/0x130
[  346.283234]  ? _raw_spin_unlock_irq+0x27/0x80
[  346.287744]  ? _raw_spin_unlock_irq+0x27/0x80
[  346.292246]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  346.296492]  ? lockdep_hardirqs_on+0x296/0x5b0
[  346.301081]  ? trace_hardirqs_on+0xbd/0x310
[  346.305411]  ? kasan_check_read+0x11/0x20
[  346.309565]  ? __run_timers+0x7da/0xc70
[  346.313562]  ? trace_hardirqs_off_caller+0x310/0x310
[  346.318687]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  346.322925]  __run_timers+0x7e5/0xc70
[  346.326746]  ? timer_fixup_init+0x70/0x70
[  346.330907]  ? kasan_check_read+0x11/0x20
[  346.335070]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.340349]  ? rcu_softirq_qs+0x20/0x20
[  346.344351]  ? mark_held_locks+0xc7/0x130
[  346.348505]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  346.353268]  ? retint_kernel+0x2d/0x2d
[  346.357167]  ? trace_hardirqs_on_caller+0xc0/0x310
[  346.362112]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  346.366874]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  346.372337]  ? zap_class+0x640/0x640
[  346.376070]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.381629]  ? check_preemption_disabled+0x48/0x280
[  346.386660]  ? __lock_is_held+0xb5/0x140
[  346.390743]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.396304]  ? check_preemption_disabled+0x48/0x280
[  346.401358]  run_timer_softirq+0x52/0xb0
[  346.405443]  ? rcu_read_lock_sched_held+0x14f/0x180
[  346.410469]  __do_softirq+0x308/0xb7e
[  346.414281]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  346.418779]  ? lock_downgrade+0x900/0x900
[  346.422964]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  346.428106]  ? pvclock_read_flags+0x160/0x160
[  346.432616]  ? lapic_next_event+0x5a/0x90
[  346.436768]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.442329]  ? kvm_clock_read+0x18/0x30
[  346.446319]  ? kvm_sched_clock_read+0x9/0x20
[  346.450743]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.456288]  ? check_preemption_disabled+0x48/0x280
[  346.461331]  irq_exit+0x17f/0x1c0
[  346.464798]  smp_apic_timer_interrupt+0x1cb/0x760
[  346.469654]  ? smp_call_function_single_interrupt+0x650/0x650
[  346.476403]  ? interrupt_entry+0xb5/0xc0
[  346.480488]  ? trace_hardirqs_off_caller+0xbb/0x310
[  346.485517]  ? trace_hardirqs_off_caller+0xbb/0x310
[  346.490548]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  346.495419]  ? trace_hardirqs_on_caller+0x310/0x310
[  346.500473]  ? trace_hardirqs_on_caller+0x310/0x310
[  346.505499]  ? task_prio+0x50/0x50
[  346.509067]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.514625]  ? check_preemption_disabled+0x48/0x280
[  346.519656]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  346.524521]  apic_timer_interrupt+0xf/0x20
[  346.528751]  </IRQ>
[  346.531001] RIP: 0010:dump_stack+0x358/0x39d
[  346.535413] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  346.554328] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  346.562061] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  346.569338] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  346.576634] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  346.583907] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  346.591182] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  346.598481]  ? dump_stack+0x34f/0x39d
[  346.602298]  ? dump_stack_print_info.cold.1+0x20/0x20
[  346.607502]  ? mark_held_locks+0x130/0x130
[  346.611738]  ? mark_held_locks+0x130/0x130
[  346.615985]  dump_header+0x27b/0xf72
[  346.619722]  ? pagefault_out_of_memory+0x197/0x197
[  346.624717]  ? __lock_acquire+0x62f/0x4c20
[  346.628968]  ? percpu_ref_get_many+0x240/0x240
[  346.633558]  ? print_usage_bug+0xc0/0xc0
[  346.637636]  ? zap_class+0x640/0x640
[  346.641363]  ? print_usage_bug+0xc0/0xc0
[  346.645460]  ? print_usage_bug+0xc0/0xc0
[  346.649535]  ? zap_class+0x640/0x640
[  346.653255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.658809]  ? find_held_lock+0x36/0x1c0
[  346.662881]  ? mark_held_locks+0xc7/0x130
[  346.667040]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  346.672171]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  346.677282]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  346.681873]  ? trace_hardirqs_on+0xbd/0x310
[  346.686212]  ? kasan_check_read+0x11/0x20
[  346.690371]  ? ___ratelimit+0x3b4/0x672
[  346.694354]  ? trace_hardirqs_off_caller+0x310/0x310
[  346.699471]  ? trace_hardirqs_on+0x310/0x310
[  346.703886]  ? lock_downgrade+0x900/0x900
[  346.708060]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  346.713175]  ? ___ratelimit+0x3b9/0x672
[  346.717156]  ? idr_get_free+0xf70/0xf70
[  346.721139]  ? find_held_lock+0x36/0x1c0
[  346.725215]  oom_kill_process.cold.27+0x10/0x903
[  346.730015]  ? zap_class+0x640/0x640
[  346.733759]  ? check_preemption_disabled+0x48/0x280
[  346.738801]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  346.743743]  ? kasan_check_read+0x11/0x20
[  346.747911]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.753590]  ? oom_evaluate_task+0x540/0x540
[  346.758018]  ? find_held_lock+0x36/0x1c0
[  346.762098]  ? out_of_memory+0x974/0x1430
[  346.766252]  ? lock_downgrade+0x900/0x900
[  346.770408]  ? check_preemption_disabled+0x48/0x280
[  346.775433]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  346.780367]  ? kasan_check_read+0x11/0x20
[  346.784521]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.789813]  ? rcu_softirq_qs+0x20/0x20
[  346.793811]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.799357]  ? oom_evaluate_task+0x302/0x540
[  346.803784]  out_of_memory+0xa84/0x1430
[  346.807775]  ? oom_killer_disable+0x3a0/0x3a0
[  346.812274]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  346.817213]  ? __ww_mutex_check_waiters+0x160/0x160
[  346.822249]  __alloc_pages_slowpath+0x2354/0x2e10
[  346.827127]  ? warn_alloc+0x120/0x120
[  346.830935]  ? mark_held_locks+0x130/0x130
[  346.835187]  ? find_get_entry+0xaae/0x1120
[  346.839440]  ? filemap_map_pages+0x1a20/0x1a20
[  346.844036]  ? zap_class+0x640/0x640
[  346.847784]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  346.853332]  ? check_preemption_disabled+0x48/0x280
[  346.858358]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.863903]  ? should_fail+0x22d/0xd01
[  346.867799]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  346.872910]  ? zap_class+0x640/0x640
[  346.876651]  ? __lock_is_held+0xb5/0x140
[  346.880741]  ? mark_held_locks+0x130/0x130
[  346.885001]  ? lock_release+0xa00/0xa00
[  346.888984]  ? perf_trace_sched_process_exec+0x860/0x860
[  346.894463]  ? xa_load+0x2ba/0x460
[  346.898009]  ? lock_downgrade+0x900/0x900
[  346.902164]  ? __might_sleep+0x95/0x190
[  346.906154]  __alloc_pages_nodemask+0xa80/0xde0
[  346.910850]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  346.915900]  ? __page_cache_alloc+0x191/0x5c0
[  346.920399]  ? xa_load+0x2e1/0x460
[  346.923944]  ? xa_clear_mark+0x40/0x40
[  346.927864]  ? zap_class+0x640/0x640
[  346.931588]  ? zap_class+0x640/0x640
[  346.935313]  ? zap_class+0x640/0x640
[  346.939032]  ? __do_page_cache_readahead+0x663/0x810
[  346.944153]  ? find_held_lock+0x36/0x1c0
[  346.948220]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  346.953769]  alloc_pages_current+0x173/0x350
[  346.958197]  __page_cache_alloc+0x38c/0x5c0
[  346.962524]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  346.967461]  ? kasan_check_read+0x11/0x20
[  346.971616]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  346.976973]  ? generic_perform_write+0x6a0/0x6a0
[  346.981737]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  346.987311]  ? check_preemption_disabled+0x48/0x280
[  346.992344]  filemap_fault+0x1595/0x25f0
[  346.996422]  ? __lock_page_or_retry+0xa00/0xa00
[  347.001099]  ? mark_held_locks+0x130/0x130
[  347.005349]  ? filemap_map_pages+0xd6b/0x1a20
[  347.009848]  ? lock_downgrade+0x900/0x900
[  347.014047]  ? check_preemption_disabled+0x48/0x280
[  347.019082]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  347.024028]  ? kasan_check_read+0x11/0x20
[  347.028182]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  347.033460]  ? rcu_softirq_qs+0x20/0x20
[  347.037459]  ? filemap_map_pages+0xd92/0x1a20
[  347.041986]  ? find_get_entries_tag+0x1400/0x1400
[  347.046835]  ? find_held_lock+0x36/0x1c0
[  347.050918]  ? lock_acquire+0x1ed/0x520
[  347.054901]  ? ext4_filemap_fault+0x7a/0xad
[  347.059256]  ? lock_release+0xa00/0xa00
[  347.063231]  ? perf_trace_sched_process_exec+0x860/0x860
[  347.068700]  ? print_usage_bug+0xc0/0xc0
[  347.072767]  ? print_usage_bug+0xc0/0xc0
[  347.076849]  ? down_read+0x8d/0x120
[  347.080479]  ? ext4_filemap_fault+0x7a/0xad
[  347.084813]  ? __down_interruptible+0x700/0x700
[  347.089507]  ext4_filemap_fault+0x82/0xad
[  347.093674]  __do_fault+0x100/0x6b0
[  347.097307]  ? find_held_lock+0x36/0x1c0
[  347.101377]  ? pmd_devmap_trans_unstable+0x220/0x220
[  347.106503]  ? mark_held_locks+0x130/0x130
[  347.110744]  ? mark_held_locks+0x130/0x130
[  347.115020]  ? kasan_check_read+0x11/0x20
[  347.119194]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  347.124755]  __handle_mm_fault+0x3ea0/0x5be0
[  347.129169]  ? perf_trace_lock+0x7a0/0x7a0
[  347.133421]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  347.138276]  ? __switch_to_asm+0x34/0x70
[  347.142341]  ? __switch_to_asm+0x34/0x70
[  347.146422]  ? zap_class+0x640/0x640
[  347.150138]  ? zap_class+0x640/0x640
[  347.153858]  ? __x64_sys_futex+0x53e/0x6a0
[  347.158128]  ? find_held_lock+0x36/0x1c0
[  347.162215]  ? handle_mm_fault+0x42a/0xc70
[  347.166483]  ? lock_downgrade+0x900/0x900
[  347.170638]  ? check_preemption_disabled+0x48/0x280
[  347.175700]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  347.180657]  ? kasan_check_read+0x11/0x20
[  347.184814]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  347.190098]  ? rcu_softirq_qs+0x20/0x20
[  347.194085]  ? trace_hardirqs_off_caller+0x310/0x310
[  347.199206]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  347.204752]  ? check_preemption_disabled+0x48/0x280
[  347.209801]  handle_mm_fault+0x54f/0xc70
[  347.213871]  ? __handle_mm_fault+0x5be0/0x5be0
[  347.218459]  ? find_vma+0x34/0x190
[  347.222013]  __do_page_fault+0x5e8/0xe60
[  347.226079]  ? trace_hardirqs_off+0xb8/0x310
[  347.230502]  do_page_fault+0xf2/0x7e0
[  347.234310]  ? vmalloc_sync_all+0x30/0x30
[  347.238461]  ? error_entry+0x70/0xd0
[  347.242183]  ? trace_hardirqs_off_caller+0xbb/0x310
[  347.247201]  ? trace_hardirqs_on_caller+0xc0/0x310
[  347.252138]  ? syscall_return_slowpath+0x5e0/0x5e0
[  347.257073]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  347.261926]  ? trace_hardirqs_on_caller+0x310/0x310
[  347.266967]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  347.272436]  ? prepare_exit_to_usermode+0x291/0x3b0
[  347.277464]  ? page_fault+0x8/0x30
[  347.281028]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  347.285881]  ? page_fault+0x8/0x30
[  347.289426]  page_fault+0x1e/0x30
[  347.292888] RIP: 0033:0x44b69a
[  347.296097] Code: Bad RIP value.
[  347.299465] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  347.304826] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  347.312118] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  347.319388] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  347.326662] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  347.333954] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  347.341262] warn_alloc_show_mem: 1 callbacks suppressed
[  347.341275] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  347.341277] Mem-Info:
[  347.341310] active_anon:47227 inactive_anon:190 isolated_anon:0
[  347.341310]  active_file:11 inactive_file:14 isolated_file:0
[  347.341310]  unevictable:0 dirty:0 writeback:0 unstable:0
[  347.341310]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  347.341310]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  347.341310]  free:13756 free_pcp:235 free_cma:0
[  347.346669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  347.353852] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  347.356256] Call Trace:
[  347.389148] 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
[  347.398512]  <IRQ>
[  347.426003] lowmem_reserve[]: 0 2818 6321 6321
[  347.428621]  dump_stack+0x244/0x39d
[  347.454732] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  347.456898]  ? dump_stack_print_info.cold.1+0x20/0x20
[  347.461445] lowmem_reserve[]: 0 0 3503 3503
[  347.465107]  warn_alloc.cold.116+0xb7/0x1bd
[  347.492423] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  347.497625]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  347.501913] lowmem_reserve[]: 0 0 0 0
[  347.506238]  ? lock_downgrade+0x900/0x900
[  347.535134] 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
[  347.540001]  ? trace_hardirqs_off+0xb8/0x310
[  347.543766] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  347.547931]  ? trace_hardirqs_off+0xb8/0x310
[  347.561448] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  347.565882]  __alloc_pages_slowpath+0x26e8/0x2e10
[  347.581142] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  347.585583]  ? warn_alloc+0x120/0x120
[  347.600629] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  347.605477]  ? warn_alloc+0x120/0x120
[  347.614318] 269 total pagecache pages
[  347.618125]  ? __lock_acquire+0x62f/0x4c20
[  347.626678] 0 pages in swap cache
[  347.630491]  ? warn_alloc+0x120/0x120
[  347.634275] Swap cache stats: add 0, delete 0, find 0/0
[  347.638507]  ? print_usage_bug+0xc0/0xc0
[  347.641971] Free swap  = 0kB
[  347.645772]  ? print_usage_bug+0xc0/0xc0
[  347.651109] Total swap = 0kB
[  347.655165]  ? mark_held_locks+0x130/0x130
[  347.658156] 1965979 pages RAM
[  347.662212]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  347.665201] 0 pages HighMem/MovableOnly
[  347.665210] 342853 pages reserved
[  347.669447]  ? should_fail+0x22d/0xd01
[  347.672526] 0 pages cma reserved
[  347.678066]  ? zap_class+0x640/0x640
[  347.678086]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  347.682122] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  347.685484]  ? __lock_acquire+0x62f/0x4c20
[  347.689433] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  347.692719]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  347.696418] syz-fuzzer cpuset=/ mems_allowed=0
[  347.701519]  ? should_fail+0x22d/0xd01
[  347.735992]  ? mark_held_locks+0x130/0x130
[  347.740237]  ? mark_held_locks+0x130/0x130
[  347.744476]  ? lock_downgrade+0x900/0x900
[  347.748628]  ? zap_class+0x640/0x640
[  347.752355]  ? zap_class+0x640/0x640
[  347.756120]  ? zap_class+0x640/0x640
[  347.759842]  ? do_raw_spin_unlock+0xa7/0x330
[  347.764258]  ? trace_hardirqs_on+0x310/0x310
[  347.768668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.774214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.779780]  ? check_preemption_disabled+0x48/0x280
[  347.784817]  ? __lock_is_held+0xb5/0x140
[  347.788895]  __alloc_pages_nodemask+0xa80/0xde0
[  347.793576]  ? zap_class+0x640/0x640
[  347.797295]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  347.802342]  ? find_held_lock+0x36/0x1c0
[  347.806415]  ? ____cache_alloc_node+0x1c7/0x1e0
[  347.811094]  ? lock_downgrade+0x900/0x900
[  347.815254]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.820811]  cache_grow_begin+0xa5/0x8c0
[  347.824882]  ? do_raw_spin_unlock+0xa7/0x330
[  347.829305]  fallback_alloc+0x204/0x2e0
[  347.833289]  ____cache_alloc_node+0x1c7/0x1e0
[  347.837797]  kmem_cache_alloc_node+0xe3/0x730
[  347.842300]  ? lockdep_hardirqs_on+0x296/0x5b0
[  347.846899]  __alloc_skb+0x119/0x770
[  347.850666]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  347.856041]  ? netdev_alloc_frag+0x1f0/0x1f0
[  347.860460]  ? vprintk_default+0x28/0x30
[  347.864523]  ? vprintk_func+0x85/0x181
[  347.868416]  ? printk+0xa7/0xcf
[  347.871713]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  347.876484]  new_skb+0x26/0x1c0
[  347.879770]  aoecmd_cfg+0x279/0x7f0
[  347.883895]  ? find_held_lock+0x36/0x1c0
[  347.887992]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  347.892329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.897880]  ? __lock_is_held+0xb5/0x140
[  347.901967]  discover_timer+0x50/0x60
[  347.905771]  call_timer_fn+0x272/0x920
[  347.909665]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  347.914530]  ? process_timeout+0x40/0x40
[  347.918604]  ? __run_timers+0x7da/0xc70
[  347.922610]  ? _raw_spin_unlock_irq+0x27/0x80
[  347.927125]  ? _raw_spin_unlock_irq+0x27/0x80
[  347.931632]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  347.936478]  ? lockdep_hardirqs_on+0x296/0x5b0
[  347.941063]  ? trace_hardirqs_on+0xbd/0x310
[  347.945402]  ? kasan_check_read+0x11/0x20
[  347.949569]  ? __run_timers+0x7da/0xc70
[  347.953558]  ? trace_hardirqs_off_caller+0x310/0x310
[  347.958687]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  347.963531]  __run_timers+0x7e5/0xc70
[  347.967350]  ? timer_fixup_init+0x70/0x70
[  347.971505]  ? lock_acquire+0x1ed/0x520
[  347.975488]  ? zap_class+0x640/0x640
[  347.979210]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  347.984759]  ? kasan_check_read+0x11/0x20
[  347.988909]  ? do_raw_spin_lock+0x14f/0x350
[  347.993246]  ? find_held_lock+0x36/0x1c0
[  347.997317]  ? zap_class+0x640/0x640
[  348.001038]  ? pvclock_read_flags+0x160/0x160
[  348.005539]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.011091]  ? check_preemption_disabled+0x48/0x280
[  348.016126]  ? __lock_is_held+0xb5/0x140
[  348.020193]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.025738]  ? check_preemption_disabled+0x48/0x280
[  348.030764]  run_timer_softirq+0x52/0xb0
[  348.034832]  ? rcu_read_lock_sched_held+0x14f/0x180
[  348.039857]  __do_softirq+0x308/0xb7e
[  348.043665]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  348.048168]  ? lock_downgrade+0x900/0x900
[  348.052323]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  348.057440]  ? pvclock_read_flags+0x160/0x160
[  348.061959]  ? lapic_next_event+0x5a/0x90
[  348.066130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.071688]  ? kvm_clock_read+0x18/0x30
[  348.075670]  ? kvm_sched_clock_read+0x9/0x20
[  348.080089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.085635]  ? check_preemption_disabled+0x48/0x280
[  348.090669]  irq_exit+0x17f/0x1c0
[  348.094128]  smp_apic_timer_interrupt+0x1cb/0x760
[  348.098984]  ? smp_call_function_single_interrupt+0x159/0x650
[  348.104875]  ? smp_call_function_single_interrupt+0x650/0x650
[  348.110760]  ? interrupt_entry+0xb5/0xc0
[  348.114827]  ? trace_hardirqs_off_caller+0xbb/0x310
[  348.119849]  ? trace_hardirqs_off_caller+0xbb/0x310
[  348.124910]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  348.129763]  ? trace_hardirqs_on_caller+0x310/0x310
[  348.134785]  ? trace_hardirqs_on_caller+0x310/0x310
[  348.139830]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  348.144691]  apic_timer_interrupt+0xf/0x20
[  348.148922]  </IRQ>
[  348.151176] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  348.156112] Code: 7e 0f 85 cf fe ff ff e8 c6 fd 3d ff e9 c5 fe ff ff e8 3d 33 c3 ff 48 83 3d 45 7c 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 d2 ac
[  348.175037] RSP: 0018:ffff880192ae7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  348.182755] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  348.190027] RDX: 0000000000000000 RSI: ffff8801c43dcc40 RDI: 0000000000000286
[  348.197297] RBP: ffff880192ae77a0 R08: ffff8801c43dc3c0 R09: 0000000000000000
[  348.204575] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  348.211859] R13: ffff8801d9beec00 R14: ffff8801d9beec00 R15: 0000000000480020
[  348.219200]  skb_clone+0x1bb/0x500
[  348.222751]  ? skb_split+0x11e0/0x11e0
[  348.226646]  ? check_preemption_disabled+0x48/0x280
[  348.231686]  ? __this_cpu_preempt_check+0x1c/0x20
[  348.236532]  ? __bpf_redirect+0x54b/0xb20
[  348.240693]  bpf_clone_redirect+0xb9/0x490
[  348.244938]  bpf_prog_bebbfe2050753572+0xb75/0x1000
[  348.249978]  ? __sched_text_start+0x8/0x8
[  348.254134]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  348.258919]  ? find_held_lock+0x36/0x1c0
[  348.263008]  ? lock_acquire+0x1ed/0x520
[  348.266991]  ? bpf_test_run+0x3cb/0x780
[  348.271003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.276548]  ? check_preemption_disabled+0x48/0x280
[  348.281591]  ? kasan_check_read+0x11/0x20
[  348.285741]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  348.291022]  ? rcu_softirq_qs+0x20/0x20
[  348.295027]  ? preempt_schedule+0x4d/0x60
[  348.299194]  ? ___preempt_schedule+0x16/0x18
[  348.303613]  ? bpf_test_run+0x25d/0x780
[  348.307604]  ? netlink_diag_dump+0x2a0/0x2a0
[  348.312024]  ? bpf_prog_test_run_skb+0x29a/0xcb0
[  348.316789]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  348.321561]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  348.326414]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  348.331963]  ? fput+0x130/0x1a0
[  348.335246]  ? __bpf_prog_get+0x9b/0x290
[  348.339321]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  348.344183]  ? bpf_prog_test_run+0x130/0x1a0
[  348.348599]  ? __x64_sys_bpf+0x3d8/0x520
[  348.352660]  ? bpf_prog_get+0x20/0x20
[  348.356487]  ? do_syscall_64+0x1b9/0x820
[  348.360557]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  348.365929]  ? syscall_return_slowpath+0x5e0/0x5e0
[  348.370872]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  348.375727]  ? trace_hardirqs_on_caller+0x310/0x310
[  348.380763]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  348.385800]  ? prepare_exit_to_usermode+0x291/0x3b0
[  348.390825]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  348.395684]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  348.401073] CPU: 0 PID: 6062 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #82
[  348.401160] aoe: skb alloc failure
[  348.408012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  348.408018] Call Trace:
[  348.408026]  <IRQ>
[  348.408046]  dump_stack+0x244/0x39d
[  348.408071]  ? dump_stack_print_info.cold.1+0x20/0x20
[  348.411624] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  348.420961]  warn_alloc.cold.116+0xb7/0x1bd
[  348.423510] syz-executor4 cpuset=syz4 mems_allowed=0
[  348.425654]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  348.459172]  ? lock_downgrade+0x900/0x900
[  348.463338]  ? trace_hardirqs_off+0xb8/0x310
[  348.467760]  ? trace_hardirqs_off+0xb8/0x310
[  348.472185]  __alloc_pages_slowpath+0x26e8/0x2e10
[  348.477070]  ? warn_alloc+0x120/0x120
[  348.480885]  ? print_usage_bug+0xc0/0xc0
[  348.484960]  ? warn_alloc+0x120/0x120
[  348.488771]  ? warn_alloc+0x120/0x120
[  348.492575]  ? print_usage_bug+0xc0/0xc0
[  348.496649]  ? print_usage_bug+0xc0/0xc0
[  348.500715]  ? __lock_acquire+0x62f/0x4c20
[  348.504964]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  348.510504]  ? should_fail+0x22d/0xd01
[  348.514398]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  348.519504]  ? __lock_acquire+0x62f/0x4c20
[  348.523772]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  348.528881]  ? __lock_acquire+0x62f/0x4c20
[  348.533120]  ? should_fail+0x22d/0xd01
[  348.537010]  ? find_held_lock+0x36/0x1c0
[  348.541097]  ? mark_held_locks+0x130/0x130
[  348.545356]  ? mark_held_locks+0x130/0x130
[  348.549589]  ? zap_class+0x640/0x640
[  348.553307]  ? zap_class+0x640/0x640
[  348.557025]  ? print_usage_bug+0xc0/0xc0
[  348.561114]  ? do_raw_spin_unlock+0xa7/0x330
[  348.565527]  ? zap_class+0x640/0x640
[  348.569247]  ? print_usage_bug+0xc0/0xc0
[  348.573311]  ? wq_watchdog_touch+0x9c/0xfe
[  348.577557]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.583102]  ? check_preemption_disabled+0x48/0x280
[  348.588133]  ? __lock_is_held+0xb5/0x140
[  348.592215]  __alloc_pages_nodemask+0xa80/0xde0
[  348.596885]  ? zap_class+0x640/0x640
[  348.600622]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  348.605663]  ? find_held_lock+0x36/0x1c0
[  348.609739]  ? ____cache_alloc_node+0x1c7/0x1e0
[  348.614413]  ? lock_downgrade+0x900/0x900
[  348.618587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.624138]  cache_grow_begin+0xa5/0x8c0
[  348.628208]  ? do_raw_spin_unlock+0xa7/0x330
[  348.632631]  fallback_alloc+0x204/0x2e0
[  348.636631]  ____cache_alloc_node+0x1c7/0x1e0
[  348.641170]  kmem_cache_alloc_node+0xe3/0x730
[  348.645667]  ? ipv6_get_ifaddr+0x42e/0x620
[  348.649922]  __alloc_skb+0x119/0x770
[  348.653642]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  348.658924]  ? netdev_alloc_frag+0x1f0/0x1f0
[  348.663339]  ? lock_downgrade+0x900/0x900
[  348.667503]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.673046]  ? refcount_sub_and_test_checked+0x203/0x310
[  348.678506]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  348.683988]  ? addrconf_rs_timer+0x690/0x690
[  348.688414]  ndisc_alloc_skb+0x144/0x340
[  348.692487]  ndisc_send_rs+0x331/0x6e0
[  348.696383]  addrconf_rs_timer+0x314/0x690
[  348.700652]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  348.704897]  call_timer_fn+0x272/0x920
[  348.708786]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  348.713027]  ? process_timeout+0x40/0x40
[  348.717110]  ? mark_held_locks+0xc7/0x130
[  348.721263]  ? _raw_spin_unlock_irq+0x27/0x80
[  348.725760]  ? _raw_spin_unlock_irq+0x27/0x80
[  348.730257]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  348.734494]  ? lockdep_hardirqs_on+0x296/0x5b0
[  348.739084]  ? trace_hardirqs_on+0xbd/0x310
[  348.743411]  ? kasan_check_read+0x11/0x20
[  348.747572]  ? __run_timers+0x7da/0xc70
[  348.751969]  ? trace_hardirqs_off_caller+0x310/0x310
[  348.757107]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  348.761345]  __run_timers+0x7e5/0xc70
[  348.765158]  ? timer_fixup_init+0x70/0x70
[  348.769312]  ? kasan_check_read+0x11/0x20
[  348.773464]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  348.778746]  ? rcu_softirq_qs+0x20/0x20
[  348.782734]  ? mark_held_locks+0xc7/0x130
[  348.786890]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  348.791659]  ? retint_kernel+0x2d/0x2d
[  348.795549]  ? trace_hardirqs_on_caller+0xc0/0x310
[  348.800495]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  348.805260]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  348.810717]  ? zap_class+0x640/0x640
[  348.814443]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.819990]  ? check_preemption_disabled+0x48/0x280
[  348.825019]  ? __lock_is_held+0xb5/0x140
[  348.829086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.834630]  ? check_preemption_disabled+0x48/0x280
[  348.839661]  run_timer_softirq+0x52/0xb0
[  348.843725]  ? rcu_read_lock_sched_held+0x14f/0x180
[  348.848750]  __do_softirq+0x308/0xb7e
[  348.852570]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  348.857081]  ? lock_downgrade+0x900/0x900
[  348.861276]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  348.866393]  ? pvclock_read_flags+0x160/0x160
[  348.870898]  ? lapic_next_event+0x5a/0x90
[  348.875060]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  348.880621]  ? kvm_clock_read+0x18/0x30
[  348.884601]  ? kvm_sched_clock_read+0x9/0x20
[  348.889016]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  348.894556]  ? check_preemption_disabled+0x48/0x280
[  348.899590]  irq_exit+0x17f/0x1c0
[  348.903054]  smp_apic_timer_interrupt+0x1cb/0x760
[  348.907902]  ? smp_call_function_single_interrupt+0x650/0x650
[  348.913793]  ? interrupt_entry+0xb5/0xc0
[  348.917882]  ? trace_hardirqs_off_caller+0xbb/0x310
[  348.922898]  ? trace_hardirqs_off_caller+0xbb/0x310
[  348.927924]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  348.932805]  ? trace_hardirqs_on_caller+0x310/0x310
[  348.937825]  ? trace_hardirqs_on_caller+0x310/0x310
[  348.942841]  ? task_prio+0x50/0x50
[  348.946395]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  348.951940]  ? check_preemption_disabled+0x48/0x280
[  348.957007]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  348.961883]  apic_timer_interrupt+0xf/0x20
[  348.966116]  </IRQ>
[  348.968358] RIP: 0010:dump_stack+0x358/0x39d
[  348.972769] Code: 74 0c 48 c7 c7 b0 fb 51 89 e8 21 9e ef f9 48 83 3d c9 c1 7e 01 00 0f 84 63 fe ff ff e8 ce 50 ac f9 48 8b bd 70 ff ff ff 57 9d <0f> 1f 44 00 00 e8 bb 50 ac f9 48 8b 8d 68 ff ff ff b8 ff ff 37 00
[  348.991697] RSP: 0000:ffff8801c00b61e8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
[  348.999434] RAX: ffff8801c0d06180 RBX: 1ffffffff12a3f76 RCX: 1ffff100381a0d4e
[  349.006709] RDX: 0000000000000000 RSI: ffffffff87d339f2 RDI: 0000000000000293
[  349.013980] RBP: ffff8801c00b6290 R08: ffff8801c0d06a70 R09: 0000000000000006
[  349.021251] R10: 0000000000000000 R11: ffff8801c0d06180 R12: 1ffff10038016c45
[  349.028533] R13: 00000000ffffffff R14: 0000000000000200 R15: 0000000000000000
[  349.035830]  ? dump_stack+0x34f/0x39d
[  349.039645]  ? dump_stack_print_info.cold.1+0x20/0x20
[  349.044842]  ? mark_held_locks+0x130/0x130
[  349.049091]  ? mark_held_locks+0x130/0x130
[  349.053331]  dump_header+0x27b/0xf72
[  349.057065]  ? pagefault_out_of_memory+0x197/0x197
[  349.062012]  ? __lock_acquire+0x62f/0x4c20
[  349.066252]  ? percpu_ref_get_many+0x240/0x240
[  349.070842]  ? print_usage_bug+0xc0/0xc0
[  349.074910]  ? zap_class+0x640/0x640
[  349.078644]  ? print_usage_bug+0xc0/0xc0
[  349.082706]  ? print_usage_bug+0xc0/0xc0
[  349.086771]  ? zap_class+0x640/0x640
[  349.090492]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.096035]  ? find_held_lock+0x36/0x1c0
[  349.100112]  ? mark_held_locks+0xc7/0x130
[  349.104284]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  349.109391]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  349.114501]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  349.119101]  ? trace_hardirqs_on+0xbd/0x310
[  349.123427]  ? kasan_check_read+0x11/0x20
[  349.127593]  ? ___ratelimit+0x3b4/0x672
[  349.131576]  ? trace_hardirqs_off_caller+0x310/0x310
[  349.136682]  ? trace_hardirqs_on+0x310/0x310
[  349.141112]  ? lock_downgrade+0x900/0x900
[  349.145291]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  349.150420]  ? ___ratelimit+0x3b9/0x672
[  349.154398]  ? idr_get_free+0xf70/0xf70
[  349.158374]  ? find_held_lock+0x36/0x1c0
[  349.162447]  oom_kill_process.cold.27+0x10/0x903
[  349.167206]  ? zap_class+0x640/0x640
[  349.170944]  ? check_preemption_disabled+0x48/0x280
[  349.175983]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  349.180922]  ? kasan_check_read+0x11/0x20
[  349.185086]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  349.190367]  ? oom_evaluate_task+0x540/0x540
[  349.194784]  ? find_held_lock+0x36/0x1c0
[  349.198854]  ? out_of_memory+0x974/0x1430
[  349.203024]  ? lock_downgrade+0x900/0x900
[  349.207178]  ? check_preemption_disabled+0x48/0x280
[  349.212204]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  349.217137]  ? kasan_check_read+0x11/0x20
[  349.221287]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  349.226569]  ? rcu_softirq_qs+0x20/0x20
[  349.230580]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  349.236120]  ? oom_evaluate_task+0x302/0x540
[  349.240570]  out_of_memory+0xa84/0x1430
[  349.244563]  ? oom_killer_disable+0x3a0/0x3a0
[  349.249066]  ? __alloc_pages_slowpath+0xf28/0x2e10
[  349.254033]  ? __ww_mutex_check_waiters+0x160/0x160
[  349.259079]  __alloc_pages_slowpath+0x2354/0x2e10
[  349.263962]  ? warn_alloc+0x120/0x120
[  349.267769]  ? mark_held_locks+0x130/0x130
[  349.272012]  ? find_get_entry+0xaae/0x1120
[  349.276276]  ? filemap_map_pages+0x1a20/0x1a20
[  349.280888]  ? zap_class+0x640/0x640
[  349.284612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  349.290153]  ? check_preemption_disabled+0x48/0x280
[  349.295172]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  349.300718]  ? should_fail+0x22d/0xd01
[  349.304610]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  349.309717]  ? zap_class+0x640/0x640
[  349.313455]  ? __lock_is_held+0xb5/0x140
[  349.317528]  ? mark_held_locks+0x130/0x130
[  349.321772]  ? lock_release+0xa00/0xa00
[  349.325750]  ? perf_trace_sched_process_exec+0x860/0x860
[  349.331202]  ? xa_load+0x2ba/0x460
[  349.334746]  ? lock_downgrade+0x900/0x900
[  349.338918]  ? __might_sleep+0x95/0x190
[  349.342911]  __alloc_pages_nodemask+0xa80/0xde0
[  349.347589]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  349.352612]  ? __page_cache_alloc+0x191/0x5c0
[  349.357114]  ? xa_load+0x2e1/0x460
[  349.360675]  ? xa_clear_mark+0x40/0x40
[  349.364571]  ? zap_class+0x640/0x640
[  349.368299]  ? zap_class+0x640/0x640
[  349.372017]  ? zap_class+0x640/0x640
[  349.375733]  ? __do_page_cache_readahead+0x663/0x810
[  349.380859]  ? find_held_lock+0x36/0x1c0
[  349.384928]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  349.390481]  alloc_pages_current+0x173/0x350
[  349.394912]  __page_cache_alloc+0x38c/0x5c0
[  349.399238]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  349.404167]  ? kasan_check_read+0x11/0x20
[  349.408337]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  349.413621]  ? generic_perform_write+0x6a0/0x6a0
[  349.418384]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  349.423929]  ? check_preemption_disabled+0x48/0x280
[  349.428970]  filemap_fault+0x1595/0x25f0
[  349.433057]  ? __lock_page_or_retry+0xa00/0xa00
[  349.437740]  ? mark_held_locks+0x130/0x130
[  349.441996]  ? filemap_map_pages+0xd6b/0x1a20
[  349.446507]  ? lock_downgrade+0x900/0x900
[  349.450659]  ? check_preemption_disabled+0x48/0x280
[  349.455728]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  349.460662]  ? kasan_check_read+0x11/0x20
[  349.464810]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  349.470094]  ? rcu_softirq_qs+0x20/0x20
[  349.474091]  ? filemap_map_pages+0xd92/0x1a20
[  349.478606]  ? find_get_entries_tag+0x1400/0x1400
[  349.483449]  ? find_held_lock+0x36/0x1c0
[  349.487545]  ? lock_acquire+0x1ed/0x520
[  349.491536]  ? ext4_filemap_fault+0x7a/0xad
[  349.495866]  ? lock_release+0xa00/0xa00
[  349.499851]  ? perf_trace_sched_process_exec+0x860/0x860
[  349.505315]  ? print_usage_bug+0xc0/0xc0
[  349.509408]  ? print_usage_bug+0xc0/0xc0
[  349.513492]  ? down_read+0x8d/0x120
[  349.517119]  ? ext4_filemap_fault+0x7a/0xad
[  349.521446]  ? __down_interruptible+0x700/0x700
[  349.526147]  ext4_filemap_fault+0x82/0xad
[  349.530299]  __do_fault+0x100/0x6b0
[  349.533927]  ? find_held_lock+0x36/0x1c0
[  349.538005]  ? pmd_devmap_trans_unstable+0x220/0x220
[  349.543117]  ? mark_held_locks+0x130/0x130
[  349.547360]  ? mark_held_locks+0x130/0x130
[  349.551611]  ? kasan_check_read+0x11/0x20
[  349.555762]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  349.561312]  __handle_mm_fault+0x3ea0/0x5be0
[  349.565724]  ? perf_trace_lock+0x7a0/0x7a0
[  349.569977]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  349.574847]  ? __switch_to_asm+0x34/0x70
[  349.578930]  ? __switch_to_asm+0x34/0x70
[  349.583020]  ? zap_class+0x640/0x640
[  349.586741]  ? zap_class+0x640/0x640
[  349.590461]  ? __x64_sys_futex+0x53e/0x6a0
[  349.594703]  ? find_held_lock+0x36/0x1c0
[  349.598780]  ? handle_mm_fault+0x42a/0xc70
[  349.603028]  ? lock_downgrade+0x900/0x900
[  349.607184]  ? check_preemption_disabled+0x48/0x280
[  349.612217]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  349.617153]  ? kasan_check_read+0x11/0x20
[  349.621303]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  349.626579]  ? rcu_softirq_qs+0x20/0x20
[  349.630555]  ? trace_hardirqs_off_caller+0x310/0x310
[  349.635673]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  349.641215]  ? check_preemption_disabled+0x48/0x280
[  349.646241]  handle_mm_fault+0x54f/0xc70
[  349.650309]  ? __handle_mm_fault+0x5be0/0x5be0
[  349.654899]  ? find_vma+0x34/0x190
[  349.658453]  __do_page_fault+0x5e8/0xe60
[  349.662516]  ? trace_hardirqs_off+0xb8/0x310
[  349.666937]  do_page_fault+0xf2/0x7e0
[  349.670756]  ? vmalloc_sync_all+0x30/0x30
[  349.674911]  ? error_entry+0x70/0xd0
[  349.678630]  ? trace_hardirqs_off_caller+0xbb/0x310
[  349.683652]  ? trace_hardirqs_on_caller+0xc0/0x310
[  349.688584]  ? syscall_return_slowpath+0x5e0/0x5e0
[  349.693512]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  349.698360]  ? trace_hardirqs_on_caller+0x310/0x310
[  349.703379]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  349.708855]  ? prepare_exit_to_usermode+0x291/0x3b0
[  349.713872]  ? page_fault+0x8/0x30
[  349.717424]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  349.722270]  ? page_fault+0x8/0x30
[  349.725813]  page_fault+0x1e/0x30
[  349.729265] RIP: 0033:0x44b69a
[  349.732474] Code: Bad RIP value.
[  349.735847] RSP: 002b:000000c420023f60 EFLAGS: 00010202
[  349.741221] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  349.748486] RDX: 000000000091db58 RSI: 00000000014ecee0 RDI: 0000000000000000
[  349.755757] RBP: 000000c420023fd0 R08: 0000000000000003 R09: 000000360d4d825d
[  349.763047] R10: 0000000000000001 R11: 000000360d4d825d R12: 0000000000000001
[  349.770340] R13: 0000000000000011 R14: 000000000045b6a0 R15: 0000000000000000
[  349.777636] warn_alloc_show_mem: 1 callbacks suppressed
[  349.777648] CPU: 1 PID: 8343 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #82
[  349.777650] Mem-Info:
[  349.777683] active_anon:47227 inactive_anon:190 isolated_anon:0
[  349.777683]  active_file:11 inactive_file:14 isolated_file:0
[  349.777683]  unevictable:0 dirty:0 writeback:0 unstable:0
[  349.777683]  slab_reclaimable:8964 slab_unreclaimable:1462015
[  349.777683]  mapped:40979 shmem:244 pagetables:583 bounce:0
[  349.777683]  free:13756 free_pcp:235 free_cma:0
[  349.783031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  349.790228] Node 0 active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:163916kB dirty:0kB writeback:0kB shmem:976kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  349.792626] Call Trace:
[  349.825514] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  349.834884]  <IRQ>
[  349.862376] lowmem_reserve[]: 0 2818 6321 6321
[  349.864997]  dump_stack+0x244/0x39d
[  349.891267] Node 0 DMA32 free:25188kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:220kB local_pcp:0kB free_cma:0kB
[  349.893438]  ? dump_stack_print_info.cold.1+0x20/0x20
[  349.897981] lowmem_reserve[]: 0 0 3503 3503
[  349.901627]  warn_alloc.cold.116+0xb7/0x1bd
[  349.928925] Node 0 Normal free:13928kB min:37364kB low:46704kB high:56044kB active_anon:188908kB inactive_anon:760kB active_file:44kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6592kB pagetables:2332kB bounce:0kB free_pcp:720kB local_pcp:680kB free_cma:0kB
[  349.934144]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  349.938437] lowmem_reserve[]: 0 0 0 0
[  349.942764]  ? lock_downgrade+0x900/0x900
[  349.971653] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  349.976523]  ? trace_hardirqs_off+0xb8/0x310
[  349.980287] Node 0 DMA32: 5*4kB (MH) 2*8kB (UM) 2*16kB (MH) 3*32kB (M) 3*64kB (M) 2*128kB (M) 2*256kB (M) 3*512kB (UM) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 25188kB
[  349.984454]  ? trace_hardirqs_off+0xb8/0x310
[  349.997962] Node 0 Normal: 644*4kB (UME) 455*8kB (UMEH) 208*16kB (UME) 76*32kB (UME) 19*64kB (UMH) 0*128kB 1*256kB (H) 1*512kB (H) 0*1024kB 0*2048kB 0*4096kB = 13960kB
[  350.002383]  __alloc_pages_slowpath+0x26e8/0x2e10
[  350.017621] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  350.022056]  ? warn_alloc+0x120/0x120
[  350.037107] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  350.041965]  ? warn_alloc+0x120/0x120
[  350.050770] 269 total pagecache pages
[  350.054576]  ? __lock_acquire+0x62f/0x4c20
[  350.063128] 0 pages in swap cache
[  350.066923]  ? warn_alloc+0x120/0x120
[  350.070698] Swap cache stats: add 0, delete 0, find 0/0
[  350.074937]  ? print_usage_bug+0xc0/0xc0
[  350.078391] Free swap  = 0kB
[  350.082185]  ? print_usage_bug+0xc0/0xc0
[  350.087527] Total swap = 0kB
[  350.091641]  ? mark_held_locks+0x130/0x130
[  350.094634] 1965979 pages RAM
[  350.098699]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  350.101689] 0 pages HighMem/MovableOnly
[  350.105920]  ? should_fail+0x22d/0xd01
[  350.108994] 342853 pages reserved
[  350.109003] 0 pages cma reserved
[  350.114530]  ? zap_class+0x640/0x640
[  350.114556]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  350.118577] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  350.122382]  ? __lock_acquire+0x62f/0x4c20
[  350.122401]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  350.122417]  ? should_fail+0x22d/0xd01
[  350.125940] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  350.129219]  ? mark_held_locks+0x130/0x130
[  350.132903] syz-fuzzer cpuset=/ mems_allowed=0
[  350.138003]  ? mark_held_locks+0x130/0x130
[  350.180967]  ? lock_downgrade+0x900/0x900
[  350.185126]  ? zap_class+0x640/0x640
[  350.188843]  ? zap_class+0x640/0x640
[  350.192576]  ? zap_class+0x640/0x640
[  350.196297]  ? do_raw_spin_unlock+0xa7/0x330
[  350.200716]  ? trace_hardirqs_on+0x310/0x310
[  350.205143]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.210685]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.216235]  ? check_preemption_disabled+0x48/0x280
[  350.221267]  ? __lock_is_held+0xb5/0x140
[  350.225341]  __alloc_pages_nodemask+0xa80/0xde0
[  350.230019]  ? zap_class+0x640/0x640
[  350.233746]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  350.238779]  ? find_held_lock+0x36/0x1c0
[  350.242852]  ? ____cache_alloc_node+0x1c7/0x1e0
[  350.247527]  ? lock_downgrade+0x900/0x900
[  350.251694]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.257244]  cache_grow_begin+0xa5/0x8c0
[  350.261308]  ? do_raw_spin_unlock+0xa7/0x330
[  350.265729]  fallback_alloc+0x204/0x2e0
[  350.269743]  ____cache_alloc_node+0x1c7/0x1e0
[  350.274246]  kmem_cache_alloc_node+0xe3/0x730
[  350.278750]  ? lockdep_hardirqs_on+0x296/0x5b0
[  350.283345]  __alloc_skb+0x119/0x770
[  350.287065]  ? __bpf_trace_timer_expire_entry+0x30/0x30
[  350.292436]  ? netdev_alloc_frag+0x1f0/0x1f0
[  350.296871]  ? vprintk_default+0x28/0x30
[  350.300965]  ? vprintk_func+0x85/0x181
[  350.304893]  ? printk+0xa7/0xcf
[  350.308184]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  350.312974]  new_skb+0x26/0x1c0
[  350.316259]  aoecmd_cfg+0x279/0x7f0
[  350.319889]  ? find_held_lock+0x36/0x1c0
[  350.323964]  ? aoecmd_ata_rsp+0x10d0/0x10d0
[  350.328297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.333850]  ? __lock_is_held+0xb5/0x140
[  350.337942]  discover_timer+0x50/0x60
[  350.341781]  call_timer_fn+0x272/0x920
[  350.345679]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  350.350524]  ? process_timeout+0x40/0x40
[  350.354602]  ? __run_timers+0x7da/0xc70
[  350.358586]  ? _raw_spin_unlock_irq+0x27/0x80
[  350.363085]  ? _raw_spin_unlock_irq+0x27/0x80
[  350.367588]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  350.372440]  ? lockdep_hardirqs_on+0x296/0x5b0
[  350.377029]  ? trace_hardirqs_on+0xbd/0x310
[  350.381355]  ? kasan_check_read+0x11/0x20
[  350.385502]  ? __run_timers+0x7da/0xc70
[  350.389480]  ? trace_hardirqs_off_caller+0x310/0x310
[  350.394601]  ? aoedev_by_aoeaddr.cold.9+0xba/0xba
[  350.399460]  __run_timers+0x7e5/0xc70
[  350.403276]  ? timer_fixup_init+0x70/0x70
[  350.407431]  ? lock_acquire+0x1ed/0x520
[  350.411408]  ? zap_class+0x640/0x640
[  350.415127]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.420673]  ? kasan_check_read+0x11/0x20
[  350.424833]  ? do_raw_spin_lock+0x14f/0x350
[  350.429172]  ? find_held_lock+0x36/0x1c0
[  350.433241]  ? zap_class+0x640/0x640
[  350.436967]  ? pvclock_read_flags+0x160/0x160
[  350.441468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.447009]  ? check_preemption_disabled+0x48/0x280
[  350.452040]  ? __lock_is_held+0xb5/0x140
[  350.456110]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.461648]  ? check_preemption_disabled+0x48/0x280
[  350.466684]  run_timer_softirq+0x52/0xb0
[  350.470749]  ? rcu_read_lock_sched_held+0x14f/0x180
[  350.475772]  __do_softirq+0x308/0xb7e
[  350.479584]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  350.484081]  ? lock_downgrade+0x900/0x900
[  350.488244]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  350.493356]  ? pvclock_read_flags+0x160/0x160
[  350.497859]  ? lapic_next_event+0x5a/0x90
[  350.502012]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  350.507560]  ? kvm_clock_read+0x18/0x30
[  350.511541]  ? kvm_sched_clock_read+0x9/0x20
[  350.515967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20