x1c0
[  223.387470]  smp_apic_timer_interrupt+0x1cb/0x760
[  223.392315]  ? smp_reschedule_interrupt+0x109/0x650
[  223.397367]  ? smp_call_function_single_interrupt+0x650/0x650
[  223.403257]  ? interrupt_entry+0xb5/0xc0
[  223.407322]  ? trace_hardirqs_off_caller+0xbb/0x310
[  223.412338]  ? trace_hardirqs_off_caller+0xbb/0x310
[  223.417359]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  223.422217]  ? trace_hardirqs_on_caller+0x310/0x310
[  223.427253]  ? trace_hardirqs_on_caller+0x310/0x310
[  223.432275]  ? task_prio+0x50/0x50
[  223.435821]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.441379]  ? check_preemption_disabled+0x48/0x280
[  223.446402]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  223.451265]  apic_timer_interrupt+0xf/0x20
[  223.455513]  </IRQ>
[  223.457764] RIP: 0010:check_memory_region+0x121/0x1b0
[  223.462960] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  223.481865] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  223.489572] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  223.496886] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  223.504168] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  223.511436] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  223.518707] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  223.525998]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.531288]  kasan_check_read+0x11/0x20
[  223.535270]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.540377]  ? rcu_softirq_qs+0x20/0x20
[  223.544393]  rcu_is_watching+0x10/0x30
[  223.548286]  list_lru_count_one+0x362/0x450
[  223.552645]  ? list_lru_isolate_move+0x3c0/0x3c0
[  223.557414]  ? shmem_free_inode+0xd0/0xd0
[  223.561612]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  223.567150]  ? ubifs_shrink_count+0xc4/0x100
[  223.571583]  super_cache_count+0x153/0x2e0
[  223.575826]  do_shrink_slab+0x1b1/0xd30
[  223.579844]  ? lock_acquire+0x1ed/0x520
[  223.583825]  ? snapshot_refaults+0x290/0x290
[  223.588273]  ? lock_release+0xa00/0xa00
[  223.592258]  ? perf_trace_sched_process_exec+0x860/0x860
[  223.597731]  ? down_read_trylock+0xda/0x140
[  223.602059]  ? shrink_slab+0x207/0x8c0
[  223.605957]  ? downgrade_write+0x270/0x270
[  223.610220]  shrink_slab+0x389/0x8c0
[  223.613943]  ? shrink_active_list+0x1f00/0x1f00
[  223.618625]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  223.624262]  ? kasan_check_read+0x11/0x20
[  223.628441]  ? do_raw_spin_unlock+0xa7/0x330
[  223.632859]  ? ___preempt_schedule+0x16/0x18
[  223.637284]  ? _raw_spin_unlock+0x3f/0x50
[  223.641469]  shrink_node+0x431/0x16b0
[  223.645272]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  223.650576]  ? shrink_node_memcg+0x18f0/0x18f0
[  223.655175]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  223.659764]  ? trace_hardirqs_on+0xbd/0x310
[  223.664089]  ? vmpressure+0x271/0x340
[  223.667896]  ? do_raw_spin_trylock+0x270/0x270
[  223.672491]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  223.678035]  ? __cpuset_node_allowed+0x19b/0x660
[  223.682794]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  223.688511]  ? vmpressure+0x1a2/0x340
[  223.692340]  do_try_to_free_pages+0x3e7/0x1290
[  223.696921]  ? zap_class+0x640/0x640
[  223.700651]  ? shrink_node+0x16b0/0x16b0
[  223.704745]  ? __lock_is_held+0xb5/0x140
[  223.708828]  try_to_free_pages+0x4d0/0xb90
[  223.713070]  ? do_try_to_free_pages+0x1290/0x1290
[  223.717932]  ? lock_acquire+0x1ed/0x520
[  223.721911]  ? set_page_refcounted+0x280/0x280
[  223.726520]  ? lock_release+0xa00/0xa00
[  223.730501]  ? _raw_spin_unlock_irq+0x60/0x80
[  223.735000]  ? psi_memstall_enter+0x240/0x2b0
[  223.739499]  ? psi_memstall_tick+0x230/0x230
[  223.743936]  __alloc_pages_slowpath+0xa14/0x2e10
[  223.748734]  ? warn_alloc+0x120/0x120
[  223.752555]  ? mark_held_locks+0x130/0x130
[  223.756822]  ? find_get_entry+0xaae/0x1120
[  223.761089]  ? filemap_map_pages+0x1a20/0x1a20
[  223.765703]  ? zap_class+0x640/0x640
[  223.769433]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  223.774974]  ? check_preemption_disabled+0x48/0x280
[  223.779995]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  223.785535]  ? should_fail+0x22d/0xd01
[  223.789429]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  223.794539]  ? zap_class+0x640/0x640
[  223.798299]  ? __lock_is_held+0xb5/0x140
[  223.802372]  ? mark_held_locks+0x130/0x130
[  223.806610]  ? lock_release+0xa00/0xa00
[  223.810588]  ? perf_trace_sched_process_exec+0x860/0x860
[  223.816326]  ? xa_load+0x2ba/0x460
[  223.819871]  ? lock_downgrade+0x900/0x900
[  223.824044]  ? __might_sleep+0x95/0x190
[  223.828038]  __alloc_pages_nodemask+0xa80/0xde0
[  223.832716]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  223.837755]  ? __page_cache_alloc+0x191/0x5c0
[  223.842254]  ? xa_load+0x2e1/0x460
[  223.845801]  ? xa_clear_mark+0x40/0x40
[  223.849692]  ? zap_class+0x640/0x640
[  223.853420]  ? zap_class+0x640/0x640
[  223.857151]  ? zap_class+0x640/0x640
[  223.860868]  ? __do_page_cache_readahead+0x663/0x810
[  223.865977]  ? find_held_lock+0x36/0x1c0
[  223.870045]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  223.875590]  alloc_pages_current+0x173/0x350
[  223.880023]  __page_cache_alloc+0x38c/0x5c0
[  223.884361]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  223.889310]  ? kasan_check_read+0x11/0x20
[  223.893458]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.898757]  ? generic_perform_write+0x6a0/0x6a0
[  223.903518]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  223.909057]  ? check_preemption_disabled+0x48/0x280
[  223.914086]  filemap_fault+0x1595/0x25f0
[  223.918175]  ? __lock_page_or_retry+0xa00/0xa00
[  223.922847]  ? mark_held_locks+0x130/0x130
[  223.927095]  ? filemap_map_pages+0xd6b/0x1a20
[  223.931596]  ? lock_downgrade+0x900/0x900
[  223.935755]  ? check_preemption_disabled+0x48/0x280
[  223.940782]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  223.945717]  ? kasan_check_read+0x11/0x20
[  223.949874]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  223.955168]  ? rcu_softirq_qs+0x20/0x20
[  223.959159]  ? filemap_map_pages+0xd92/0x1a20
[  223.963667]  ? find_get_entries_tag+0x1400/0x1400
[  223.968507]  ? find_held_lock+0x36/0x1c0
[  223.972590]  ? lock_acquire+0x1ed/0x520
[  223.976569]  ? ext4_filemap_fault+0x7a/0xad
[  223.980903]  ? lock_release+0xa00/0xa00
[  223.984882]  ? perf_trace_sched_process_exec+0x860/0x860
[  223.990340]  ? print_usage_bug+0xc0/0xc0
[  223.994423]  ? down_read+0x8d/0x120
[  223.998051]  ? ext4_filemap_fault+0x7a/0xad
[  224.002389]  ? __down_interruptible+0x700/0x700
[  224.007068]  ? find_held_lock+0x36/0x1c0
[  224.011135]  ext4_filemap_fault+0x82/0xad
[  224.015299]  __do_fault+0x100/0x6b0
[  224.018929]  ? lock_downgrade+0x900/0x900
[  224.023083]  ? pmd_devmap_trans_unstable+0x220/0x220
[  224.028211]  ? kasan_check_read+0x11/0x20
[  224.032366]  ? do_raw_spin_unlock+0xa7/0x330
[  224.036776]  ? do_raw_spin_trylock+0x270/0x270
[  224.041402]  __handle_mm_fault+0x3ea0/0x5be0
[  224.045831]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  224.050688]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  224.055339]  ? zap_class+0x640/0x640
[  224.059062]  ? zap_class+0x640/0x640
[  224.062778]  ? __x64_sys_futex+0x53e/0x6a0
[  224.067020]  ? find_held_lock+0x36/0x1c0
[  224.071093]  ? handle_mm_fault+0x42a/0xc70
[  224.075332]  ? lock_downgrade+0x900/0x900
[  224.079495]  ? check_preemption_disabled+0x48/0x280
[  224.084533]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  224.089482]  ? kasan_check_read+0x11/0x20
[  224.093629]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  224.098911]  ? rcu_softirq_qs+0x20/0x20
[  224.102892]  ? trace_hardirqs_off_caller+0x310/0x310
[  224.108001]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.113541]  ? check_preemption_disabled+0x48/0x280
[  224.118583]  handle_mm_fault+0x54f/0xc70
[  224.122661]  ? __handle_mm_fault+0x5be0/0x5be0
[  224.127255]  ? find_vma+0x34/0x190
[  224.130812]  __do_page_fault+0x5e8/0xe60
[  224.134886]  ? trace_hardirqs_off+0xb8/0x310
[  224.139305]  do_page_fault+0xf2/0x7e0
[  224.143110]  ? vmalloc_sync_all+0x30/0x30
[  224.147267]  ? error_entry+0x70/0xd0
[  224.150988]  ? trace_hardirqs_off_caller+0xbb/0x310
[  224.156009]  ? trace_hardirqs_on_caller+0xc0/0x310
[  224.160947]  ? syscall_return_slowpath+0x5e0/0x5e0
[  224.165880]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  224.170734]  ? trace_hardirqs_on_caller+0x310/0x310
[  224.175758]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  224.181217]  ? prepare_exit_to_usermode+0x291/0x3b0
[  224.186243]  ? page_fault+0x8/0x30
[  224.189792]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  224.194639]  ? page_fault+0x8/0x30
[  224.198183]  page_fault+0x1e/0x30
[  224.201634] RIP: 0033:0x404068
[  224.204871] Code: Bad RIP value.
[  224.208238] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  224.213618] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  224.220902] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  224.228171] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  224.235496] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  224.242768] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  224.250063] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  224.250065] Mem-Info:
[  224.250097] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  224.250097]  active_file:13 inactive_file:28 isolated_file:0
[  224.250097]  unevictable:0 dirty:1 writeback:0 unstable:0
[  224.250097]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  224.250097]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  224.250097]  free:13541 free_pcp:161 free_cma:0
[  224.257349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  224.259818] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  224.292848] Call Trace:
[  224.302188] 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
[  224.330106]  <IRQ>
[  224.332675] lowmem_reserve[]: 0 2818 6321 6321
[  224.358788]  dump_stack+0x244/0x39d
[  224.360912] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  224.365488]  ? dump_stack_print_info.cold.1+0x20/0x20
[  224.369088] lowmem_reserve[]: 0 0 3503 3503
[  224.396708]  warn_alloc.cold.116+0xb7/0x1bd
[  224.401888] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  224.406205]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  224.410502] lowmem_reserve[]: 0 0 0 0
[  224.439650]  ? lock_downgrade+0x900/0x900
[  224.444468] 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
[  224.448291]  ? trace_hardirqs_off+0xb8/0x310
[  224.452414] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  224.465944]  ? trace_hardirqs_off+0xb8/0x310
[  224.470327] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  224.485497]  __alloc_pages_slowpath+0x26e8/0x2e10
[  224.489883] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  224.504368]  ? warn_alloc+0x120/0x120
[  224.509171] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  224.517996]  ? print_usage_bug+0xc0/0xc0
[  224.521772] 4984 total pagecache pages
[  224.530343]  ? warn_alloc+0x120/0x120
[  224.534433] 0 pages in swap cache
[  224.538304]  ? warn_alloc+0x120/0x120
[  224.542082] Swap cache stats: add 0, delete 0, find 0/0
[  224.545524]  ? print_usage_bug+0xc0/0xc0
[  224.549307] Free swap  = 0kB
[  224.554660]  ? print_usage_bug+0xc0/0xc0
[  224.558696] Total swap = 0kB
[  224.561756]  ? __lock_acquire+0x62f/0x4c20
[  224.565800] 1965979 pages RAM
[  224.568820]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  224.573032] 0 pages HighMem/MovableOnly
[  224.576135]  ? should_fail+0x22d/0xd01
[  224.581650] 342853 pages reserved
[  224.585617]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  224.589482] 0 pages cma reserved
[  224.592930]  ? __lock_acquire+0x62f/0x4c20
[  224.598099] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  224.601373]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  224.601387]  ? __lock_acquire+0x62f/0x4c20
[  224.601405]  ? should_fail+0x22d/0xd01
[  224.605678] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  224.612106]  ? find_held_lock+0x36/0x1c0
[  224.617201] syz-fuzzer cpuset=/ mems_allowed=0
[  224.621447]  ? mark_held_locks+0x130/0x130
[  224.648718]  ? mark_held_locks+0x130/0x130
[  224.652972]  ? zap_class+0x640/0x640
[  224.656687]  ? zap_class+0x640/0x640
[  224.660413]  ? print_usage_bug+0xc0/0xc0
[  224.664471]  ? do_raw_spin_unlock+0xa7/0x330
[  224.668887]  ? zap_class+0x640/0x640
[  224.672603]  ? print_usage_bug+0xc0/0xc0
[  224.676667]  ? wq_watchdog_touch+0x9c/0xfe
[  224.680914]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.686462]  ? check_preemption_disabled+0x48/0x280
[  224.691523]  ? __lock_is_held+0xb5/0x140
[  224.695592]  __alloc_pages_nodemask+0xa80/0xde0
[  224.700266]  ? zap_class+0x640/0x640
[  224.703989]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  224.709019]  ? find_held_lock+0x36/0x1c0
[  224.713093]  ? ____cache_alloc_node+0x1c7/0x1e0
[  224.717800]  ? lock_downgrade+0x900/0x900
[  224.721960]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.727520]  cache_grow_begin+0xa5/0x8c0
[  224.731584]  ? do_raw_spin_unlock+0xa7/0x330
[  224.736005]  fallback_alloc+0x204/0x2e0
[  224.739991]  ____cache_alloc_node+0x1c7/0x1e0
[  224.744494]  kmem_cache_alloc_node+0xe3/0x730
[  224.748991]  ? ipv6_get_ifaddr+0x42e/0x620
[  224.753238]  __alloc_skb+0x119/0x770
[  224.756957]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  224.762241]  ? netdev_alloc_frag+0x1f0/0x1f0
[  224.766656]  ? lock_downgrade+0x900/0x900
[  224.770816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.776357]  ? refcount_sub_and_test_checked+0x203/0x310
[  224.781814]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  224.787270]  ? addrconf_rs_timer+0x690/0x690
[  224.791691]  ndisc_alloc_skb+0x144/0x340
[  224.795770]  ndisc_send_rs+0x331/0x6e0
[  224.799663]  addrconf_rs_timer+0x314/0x690
[  224.803911]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  224.808162]  call_timer_fn+0x272/0x920
[  224.812053]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  224.816307]  ? process_timeout+0x40/0x40
[  224.820380]  ? __run_timers+0x7da/0xc70
[  224.824361]  ? _raw_spin_unlock_irq+0x27/0x80
[  224.828860]  ? _raw_spin_unlock_irq+0x27/0x80
[  224.833360]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  224.837597]  ? lockdep_hardirqs_on+0x296/0x5b0
[  224.842181]  ? trace_hardirqs_on+0xbd/0x310
[  224.846506]  ? kasan_check_read+0x11/0x20
[  224.850658]  ? __run_timers+0x7da/0xc70
[  224.854637]  ? trace_hardirqs_off_caller+0x310/0x310
[  224.859768]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  224.864009]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  224.868261]  __run_timers+0x7e5/0xc70
[  224.872087]  ? timer_fixup_init+0x70/0x70
[  224.876238]  ? kasan_check_read+0x11/0x20
[  224.880407]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  224.885684]  ? rcu_softirq_qs+0x20/0x20
[  224.889665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.895211]  ? check_preemption_disabled+0x48/0x280
[  224.900235]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  224.904997]  ? retint_kernel+0x2d/0x2d
[  224.908918]  ? trace_hardirqs_on_caller+0xc0/0x310
[  224.913850]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  224.918605]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  224.924072]  ? zap_class+0x640/0x640
[  224.927795]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.933337]  ? check_preemption_disabled+0x48/0x280
[  224.938377]  ? __lock_is_held+0xb5/0x140
[  224.942441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.948182]  ? check_preemption_disabled+0x48/0x280
[  224.953229]  run_timer_softirq+0x52/0xb0
[  224.957289]  ? rcu_read_lock_sched_held+0x14f/0x180
[  224.962312]  __do_softirq+0x308/0xb7e
[  224.966121]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  224.970620]  ? lock_downgrade+0x900/0x900
[  224.974788]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  224.979906]  ? pvclock_read_flags+0x160/0x160
[  224.984405]  ? lapic_next_event+0x5a/0x90
[  224.988556]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  224.994103]  ? kvm_clock_read+0x18/0x30
[  224.998079]  ? kvm_sched_clock_read+0x9/0x20
[  225.002505]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.008061]  ? check_preemption_disabled+0x48/0x280
[  225.013091]  irq_exit+0x17f/0x1c0
[  225.016548]  smp_apic_timer_interrupt+0x1cb/0x760
[  225.021421]  ? smp_reschedule_interrupt+0x109/0x650
[  225.026472]  ? smp_call_function_single_interrupt+0x650/0x650
[  225.032361]  ? interrupt_entry+0xb5/0xc0
[  225.036439]  ? trace_hardirqs_off_caller+0xbb/0x310
[  225.041451]  ? trace_hardirqs_off_caller+0xbb/0x310
[  225.046469]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.051313]  ? trace_hardirqs_on_caller+0x310/0x310
[  225.056351]  ? trace_hardirqs_on_caller+0x310/0x310
[  225.061382]  ? task_prio+0x50/0x50
[  225.064931]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.070515]  ? check_preemption_disabled+0x48/0x280
[  225.075553]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.080405]  apic_timer_interrupt+0xf/0x20
[  225.084634]  </IRQ>
[  225.086877] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  225.091819] 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
[  225.110719] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  225.118440] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  225.125704] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  225.132994] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  225.140266] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  225.147534] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  225.154858]  skb_clone+0x1bb/0x500
[  225.158404]  ? skb_split+0x11e0/0x11e0
[  225.162297]  ? preempt_notifier_register+0x200/0x200
[  225.167400]  ? __switch_to_asm+0x34/0x70
[  225.171469]  ? __switch_to_asm+0x34/0x70
[  225.175541]  ? __switch_to_asm+0x40/0x70
[  225.179619]  ? __switch_to_asm+0x34/0x70
[  225.183678]  ? __switch_to_asm+0x40/0x70
[  225.187779]  ? __switch_to_asm+0x40/0x70
[  225.191843]  ? __switch_to_asm+0x34/0x70
[  225.195904]  ? __switch_to_asm+0x34/0x70
[  225.199963]  ? __switch_to_asm+0x40/0x70
[  225.204036]  ? __switch_to_asm+0x34/0x70
[  225.208127]  bpf_clone_redirect+0xb9/0x490
[  225.212374]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  225.217395]  ? __sched_text_start+0x8/0x8
[  225.221557]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  225.226315]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  225.231090]  ? find_held_lock+0x36/0x1c0
[  225.235164]  ? lock_acquire+0x1ed/0x520
[  225.239143]  ? bpf_test_run+0x3cb/0x780
[  225.243121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.248661]  ? check_preemption_disabled+0x48/0x280
[  225.253706]  ? kasan_check_read+0x11/0x20
[  225.257896]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.263225]  ? rcu_softirq_qs+0x20/0x20
[  225.267229]  ? preempt_schedule+0x4d/0x60
[  225.271382]  ? ___preempt_schedule+0x16/0x18
[  225.275846]  ? bpf_test_run+0x25d/0x780
[  225.279834]  ? netlink_diag_dump+0x2a0/0x2a0
[  225.284247]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.289791]  ? bpf_test_init.isra.10+0x70/0x100
[  225.294472]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  225.299239]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  225.304083]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  225.309623]  ? fput+0x130/0x1a0
[  225.312906]  ? __bpf_prog_get+0x9b/0x290
[  225.316973]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  225.321833]  ? bpf_prog_test_run+0x130/0x1a0
[  225.326259]  ? __x64_sys_bpf+0x3d8/0x520
[  225.330346]  ? bpf_prog_get+0x20/0x20
[  225.334168]  ? do_syscall_64+0x1b9/0x820
[  225.338230]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  225.343612]  ? syscall_return_slowpath+0x5e0/0x5e0
[  225.348560]  ? trace_hardirqs_on_caller+0x310/0x310
[  225.353581]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  225.358601]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  225.365273]  ? __switch_to_asm+0x40/0x70
[  225.369337]  ? __switch_to_asm+0x34/0x70
[  225.373419]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.378268]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  225.383651] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  225.383757] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  225.390583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  225.390589] Call Trace:
[  225.390596]  <IRQ>
[  225.390613]  dump_stack+0x244/0x39d
[  225.390633]  ? dump_stack_print_info.cold.1+0x20/0x20
[  225.397165] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  225.406497]  warn_alloc.cold.116+0xb7/0x1bd
[  225.409064] syz-executor4 cpuset=syz4 mems_allowed=0
[  225.411214]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  225.444707]  ? lock_downgrade+0x900/0x900
[  225.448890]  ? trace_hardirqs_off+0xb8/0x310
[  225.453310]  ? trace_hardirqs_off+0xb8/0x310
[  225.457745]  __alloc_pages_slowpath+0x26e8/0x2e10
[  225.462622]  ? warn_alloc+0x120/0x120
[  225.466432]  ? print_usage_bug+0xc0/0xc0
[  225.470506]  ? warn_alloc+0x120/0x120
[  225.474315]  ? warn_alloc+0x120/0x120
[  225.478174]  ? print_usage_bug+0xc0/0xc0
[  225.482293]  ? print_usage_bug+0xc0/0xc0
[  225.486362]  ? __lock_acquire+0x62f/0x4c20
[  225.490607]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  225.496149]  ? should_fail+0x22d/0xd01
[  225.500044]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  225.505177]  ? __lock_acquire+0x62f/0x4c20
[  225.509463]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  225.514586]  ? __lock_acquire+0x62f/0x4c20
[  225.518821]  ? should_fail+0x22d/0xd01
[  225.522730]  ? find_held_lock+0x36/0x1c0
[  225.526820]  ? mark_held_locks+0x130/0x130
[  225.531068]  ? mark_held_locks+0x130/0x130
[  225.535307]  ? zap_class+0x640/0x640
[  225.539020]  ? zap_class+0x640/0x640
[  225.542764]  ? print_usage_bug+0xc0/0xc0
[  225.546828]  ? do_raw_spin_unlock+0xa7/0x330
[  225.551244]  ? zap_class+0x640/0x640
[  225.554960]  ? print_usage_bug+0xc0/0xc0
[  225.559022]  ? wq_watchdog_touch+0x9c/0xfe
[  225.563269]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.568812]  ? check_preemption_disabled+0x48/0x280
[  225.573847]  ? __lock_is_held+0xb5/0x140
[  225.577919]  __alloc_pages_nodemask+0xa80/0xde0
[  225.582629]  ? zap_class+0x640/0x640
[  225.586384]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  225.591412]  ? find_held_lock+0x36/0x1c0
[  225.595488]  ? ____cache_alloc_node+0x1c7/0x1e0
[  225.600181]  ? lock_downgrade+0x900/0x900
[  225.604340]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.609897]  cache_grow_begin+0xa5/0x8c0
[  225.613976]  ? do_raw_spin_unlock+0xa7/0x330
[  225.618404]  fallback_alloc+0x204/0x2e0
[  225.622391]  ____cache_alloc_node+0x1c7/0x1e0
[  225.626899]  kmem_cache_alloc_node+0xe3/0x730
[  225.631397]  ? ipv6_get_ifaddr+0x42e/0x620
[  225.635648]  __alloc_skb+0x119/0x770
[  225.639374]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  225.644657]  ? netdev_alloc_frag+0x1f0/0x1f0
[  225.649092]  ? lock_downgrade+0x900/0x900
[  225.653253]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.658795]  ? refcount_sub_and_test_checked+0x203/0x310
[  225.664264]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  225.669718]  ? addrconf_rs_timer+0x690/0x690
[  225.674151]  ndisc_alloc_skb+0x144/0x340
[  225.678252]  ndisc_send_rs+0x331/0x6e0
[  225.682180]  addrconf_rs_timer+0x314/0x690
[  225.686427]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  225.690681]  call_timer_fn+0x272/0x920
[  225.694570]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  225.698842]  ? process_timeout+0x40/0x40
[  225.702920]  ? mark_held_locks+0xc7/0x130
[  225.707099]  ? _raw_spin_unlock_irq+0x27/0x80
[  225.711591]  ? _raw_spin_unlock_irq+0x27/0x80
[  225.716095]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  225.720349]  ? lockdep_hardirqs_on+0x296/0x5b0
[  225.724934]  ? trace_hardirqs_on+0xbd/0x310
[  225.729261]  ? kasan_check_read+0x11/0x20
[  225.733425]  ? __run_timers+0x7da/0xc70
[  225.737407]  ? trace_hardirqs_off_caller+0x310/0x310
[  225.742517]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  225.746770]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  225.751006]  __run_timers+0x7e5/0xc70
[  225.754835]  ? timer_fixup_init+0x70/0x70
[  225.759004]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  225.764027]  ? zap_class+0x640/0x640
[  225.767755]  ? print_usage_bug+0xc0/0xc0
[  225.771823]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  225.777025]  ? find_held_lock+0x36/0x1c0
[  225.781098]  ? zap_class+0x640/0x640
[  225.784819]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.790366]  ? check_preemption_disabled+0x48/0x280
[  225.795411]  ? __lock_is_held+0xb5/0x140
[  225.799479]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.805019]  ? check_preemption_disabled+0x48/0x280
[  225.810046]  run_timer_softirq+0x52/0xb0
[  225.814348]  ? rcu_read_lock_sched_held+0x14f/0x180
[  225.819365]  __do_softirq+0x308/0xb7e
[  225.823188]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  225.827681]  ? lock_downgrade+0x900/0x900
[  225.831835]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  225.836948]  ? pvclock_read_flags+0x160/0x160
[  225.841467]  ? lapic_next_event+0x5a/0x90
[  225.845624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.851183]  ? kvm_clock_read+0x18/0x30
[  225.855172]  ? kvm_sched_clock_read+0x9/0x20
[  225.859586]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.865130]  ? check_preemption_disabled+0x48/0x280
[  225.870156]  irq_exit+0x17f/0x1c0
[  225.873614]  smp_apic_timer_interrupt+0x1cb/0x760
[  225.878480]  ? smp_reschedule_interrupt+0x109/0x650
[  225.883501]  ? smp_call_function_single_interrupt+0x650/0x650
[  225.890601]  ? interrupt_entry+0xb5/0xc0
[  225.894665]  ? trace_hardirqs_off_caller+0xbb/0x310
[  225.899680]  ? trace_hardirqs_off_caller+0xbb/0x310
[  225.904698]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.909555]  ? trace_hardirqs_on_caller+0x310/0x310
[  225.914574]  ? trace_hardirqs_on_caller+0x310/0x310
[  225.919594]  ? task_prio+0x50/0x50
[  225.923138]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  225.928710]  ? check_preemption_disabled+0x48/0x280
[  225.933748]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  225.938606]  apic_timer_interrupt+0xf/0x20
[  225.942834]  </IRQ>
[  225.945342] RIP: 0010:check_memory_region+0x121/0x1b0
[  225.950709] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  225.969619] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  225.977343] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  225.984628] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  225.991894] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  225.999167] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  226.006439] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  226.013736]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  226.019027]  kasan_check_read+0x11/0x20
[  226.023003]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  226.028107]  ? rcu_softirq_qs+0x20/0x20
[  226.032091]  rcu_is_watching+0x10/0x30
[  226.035980]  list_lru_count_one+0x362/0x450
[  226.040307]  ? list_lru_isolate_move+0x3c0/0x3c0
[  226.045064]  ? shmem_free_inode+0xd0/0xd0
[  226.049251]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.054813]  ? ubifs_shrink_count+0xc4/0x100
[  226.059266]  super_cache_count+0x153/0x2e0
[  226.063508]  do_shrink_slab+0x1b1/0xd30
[  226.067494]  ? lock_acquire+0x1ed/0x520
[  226.071474]  ? snapshot_refaults+0x290/0x290
[  226.075886]  ? lock_release+0xa00/0xa00
[  226.079868]  ? perf_trace_sched_process_exec+0x860/0x860
[  226.085349]  ? down_read_trylock+0xda/0x140
[  226.089699]  ? shrink_slab+0x207/0x8c0
[  226.093594]  ? downgrade_write+0x270/0x270
[  226.097846]  shrink_slab+0x389/0x8c0
[  226.101563]  ? shrink_active_list+0x1f00/0x1f00
[  226.106276]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  226.111907]  ? kasan_check_read+0x11/0x20
[  226.116055]  ? do_raw_spin_unlock+0xa7/0x330
[  226.120474]  ? ___preempt_schedule+0x16/0x18
[  226.124896]  ? _raw_spin_unlock+0x3f/0x50
[  226.129050]  shrink_node+0x431/0x16b0
[  226.132854]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  226.138157]  ? shrink_node_memcg+0x18f0/0x18f0
[  226.142746]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  226.147333]  ? trace_hardirqs_on+0xbd/0x310
[  226.151697]  ? vmpressure+0x271/0x340
[  226.155513]  ? do_raw_spin_trylock+0x270/0x270
[  226.160103]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  226.165643]  ? __cpuset_node_allowed+0x19b/0x660
[  226.170405]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  226.176117]  ? vmpressure+0x1a2/0x340
[  226.179934]  do_try_to_free_pages+0x3e7/0x1290
[  226.184516]  ? zap_class+0x640/0x640
[  226.188255]  ? shrink_node+0x16b0/0x16b0
[  226.192327]  ? __lock_is_held+0xb5/0x140
[  226.196402]  try_to_free_pages+0x4d0/0xb90
[  226.200645]  ? do_try_to_free_pages+0x1290/0x1290
[  226.205513]  ? lock_acquire+0x1ed/0x520
[  226.209515]  ? set_page_refcounted+0x280/0x280
[  226.214119]  ? lock_release+0xa00/0xa00
[  226.218100]  ? _raw_spin_unlock_irq+0x60/0x80
[  226.222600]  ? psi_memstall_enter+0x240/0x2b0
[  226.227099]  ? psi_memstall_tick+0x230/0x230
[  226.231520]  __alloc_pages_slowpath+0xa14/0x2e10
[  226.236309]  ? warn_alloc+0x120/0x120
[  226.240108]  ? mark_held_locks+0x130/0x130
[  226.244351]  ? find_get_entry+0xaae/0x1120
[  226.248595]  ? filemap_map_pages+0x1a20/0x1a20
[  226.253186]  ? zap_class+0x640/0x640
[  226.256914]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  226.262457]  ? check_preemption_disabled+0x48/0x280
[  226.267486]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.273025]  ? should_fail+0x22d/0xd01
[  226.276918]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  226.282022]  ? zap_class+0x640/0x640
[  226.285830]  ? __lock_is_held+0xb5/0x140
[  226.289905]  ? mark_held_locks+0x130/0x130
[  226.294148]  ? lock_release+0xa00/0xa00
[  226.298130]  ? perf_trace_sched_process_exec+0x860/0x860
[  226.303601]  ? xa_load+0x2ba/0x460
[  226.307159]  ? lock_downgrade+0x900/0x900
[  226.311314]  ? __might_sleep+0x95/0x190
[  226.315295]  __alloc_pages_nodemask+0xa80/0xde0
[  226.319971]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  226.324988]  ? __page_cache_alloc+0x191/0x5c0
[  226.329497]  ? xa_load+0x2e1/0x460
[  226.333040]  ? xa_clear_mark+0x40/0x40
[  226.336932]  ? zap_class+0x640/0x640
[  226.340653]  ? zap_class+0x640/0x640
[  226.344369]  ? zap_class+0x640/0x640
[  226.348086]  ? __do_page_cache_readahead+0x663/0x810
[  226.353198]  ? find_held_lock+0x36/0x1c0
[  226.357308]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  226.362850]  alloc_pages_current+0x173/0x350
[  226.367271]  __page_cache_alloc+0x38c/0x5c0
[  226.371596]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  226.376529]  ? kasan_check_read+0x11/0x20
[  226.380680]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  226.385964]  ? generic_perform_write+0x6a0/0x6a0
[  226.390733]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.396275]  ? check_preemption_disabled+0x48/0x280
[  226.401303]  filemap_fault+0x1595/0x25f0
[  226.405392]  ? __lock_page_or_retry+0xa00/0xa00
[  226.410068]  ? mark_held_locks+0x130/0x130
[  226.414317]  ? filemap_map_pages+0xd6b/0x1a20
[  226.418832]  ? lock_downgrade+0x900/0x900
[  226.422983]  ? check_preemption_disabled+0x48/0x280
[  226.428005]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  226.432933]  ? kasan_check_read+0x11/0x20
[  226.437080]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  226.442357]  ? rcu_softirq_qs+0x20/0x20
[  226.446349]  ? filemap_map_pages+0xd92/0x1a20
[  226.450861]  ? find_get_entries_tag+0x1400/0x1400
[  226.455703]  ? find_held_lock+0x36/0x1c0
[  226.459793]  ? lock_acquire+0x1ed/0x520
[  226.463768]  ? ext4_filemap_fault+0x7a/0xad
[  226.468099]  ? lock_release+0xa00/0xa00
[  226.472076]  ? perf_trace_sched_process_exec+0x860/0x860
[  226.477530]  ? print_usage_bug+0xc0/0xc0
[  226.481610]  ? down_read+0x8d/0x120
[  226.485244]  ? ext4_filemap_fault+0x7a/0xad
[  226.489574]  ? __down_interruptible+0x700/0x700
[  226.494268]  ? find_held_lock+0x36/0x1c0
[  226.498334]  ext4_filemap_fault+0x82/0xad
[  226.502487]  __do_fault+0x100/0x6b0
[  226.506121]  ? lock_downgrade+0x900/0x900
[  226.510272]  ? pmd_devmap_trans_unstable+0x220/0x220
[  226.515398]  ? kasan_check_read+0x11/0x20
[  226.519545]  ? do_raw_spin_unlock+0xa7/0x330
[  226.523957]  ? do_raw_spin_trylock+0x270/0x270
[  226.528554]  __handle_mm_fault+0x3ea0/0x5be0
[  226.532971]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  226.537839]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  226.542433]  ? zap_class+0x640/0x640
[  226.546147]  ? zap_class+0x640/0x640
[  226.549866]  ? __x64_sys_futex+0x53e/0x6a0
[  226.554107]  ? find_held_lock+0x36/0x1c0
[  226.558178]  ? handle_mm_fault+0x42a/0xc70
[  226.562416]  ? lock_downgrade+0x900/0x900
[  226.566570]  ? check_preemption_disabled+0x48/0x280
[  226.571622]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  226.576568]  ? kasan_check_read+0x11/0x20
[  226.580717]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  226.586007]  ? rcu_softirq_qs+0x20/0x20
[  226.589985]  ? trace_hardirqs_off_caller+0x310/0x310
[  226.595091]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  226.600628]  ? check_preemption_disabled+0x48/0x280
[  226.605653]  handle_mm_fault+0x54f/0xc70
[  226.609718]  ? __handle_mm_fault+0x5be0/0x5be0
[  226.614350]  ? find_vma+0x34/0x190
[  226.617901]  __do_page_fault+0x5e8/0xe60
[  226.621963]  ? trace_hardirqs_off+0xb8/0x310
[  226.626387]  do_page_fault+0xf2/0x7e0
[  226.630188]  ? vmalloc_sync_all+0x30/0x30
[  226.634350]  ? error_entry+0x70/0xd0
[  226.638069]  ? trace_hardirqs_off_caller+0xbb/0x310
[  226.643086]  ? trace_hardirqs_on_caller+0xc0/0x310
[  226.648021]  ? syscall_return_slowpath+0x5e0/0x5e0
[  226.652955]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  226.657804]  ? trace_hardirqs_on_caller+0x310/0x310
[  226.662819]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  226.668277]  ? prepare_exit_to_usermode+0x291/0x3b0
[  226.673294]  ? page_fault+0x8/0x30
[  226.676844]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  226.681689]  ? page_fault+0x8/0x30
[  226.685255]  page_fault+0x1e/0x30
[  226.688705] RIP: 0033:0x404068
[  226.691918] Code: Bad RIP value.
[  226.695277] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  226.700638] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  226.707904] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  226.715174] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  226.722466] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  226.729741] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  226.737032] warn_alloc_show_mem: 1 callbacks suppressed
[  226.737044] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  226.737046] Mem-Info:
[  226.737076] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  226.737076]  active_file:13 inactive_file:28 isolated_file:0
[  226.737076]  unevictable:0 dirty:1 writeback:0 unstable:0
[  226.737076]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  226.737076]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  226.737076]  free:13541 free_pcp:161 free_cma:0
[  226.742424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  226.749706] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  226.752106] Call Trace:
[  226.785145] 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
[  226.794488]  <IRQ>
[  226.822402] lowmem_reserve[]: 0 2818 6321 6321
[  226.824991]  dump_stack+0x244/0x39d
[  226.851072] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  226.853221]  ? dump_stack_print_info.cold.1+0x20/0x20
[  226.857781] lowmem_reserve[]: 0 0 3503 3503
[  226.861425]  warn_alloc.cold.116+0xb7/0x1bd
[  226.888980] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  226.894170]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  226.898463] lowmem_reserve[]: 0 0 0 0
[  226.902785]  ? lock_downgrade+0x900/0x900
[  226.931911] 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
[  226.936764]  ? trace_hardirqs_off+0xb8/0x310
[  226.940539] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  226.944686]  ? trace_hardirqs_off+0xb8/0x310
[  226.958681] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  226.963099]  __alloc_pages_slowpath+0x26e8/0x2e10
[  226.978260] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  226.982676]  ? warn_alloc+0x120/0x120
[  226.997114] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  227.001950]  ? print_usage_bug+0xc0/0xc0
[  227.010759] 4984 total pagecache pages
[  227.014564]  ? warn_alloc+0x120/0x120
[  227.023123] 0 pages in swap cache
[  227.027168]  ? warn_alloc+0x120/0x120
[  227.031030] Swap cache stats: add 0, delete 0, find 0/0
[  227.031039] Free swap  = 0kB
[  227.034833]  ? print_usage_bug+0xc0/0xc0
[  227.038263] Total swap = 0kB
[  227.042057]  ? print_usage_bug+0xc0/0xc0
[  227.047394] 1965979 pages RAM
[  227.050411]  ? __lock_acquire+0x62f/0x4c20
[  227.054448] 0 pages HighMem/MovableOnly
[  227.057464]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.061497] 342853 pages reserved
[  227.064600]  ? should_fail+0x22d/0xd01
[  227.068813] 0 pages cma reserved
[  227.072784]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  227.078356] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  227.081749]  ? __lock_acquire+0x62f/0x4c20
[  227.081769]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  227.081785]  ? __lock_acquire+0x62f/0x4c20
[  227.085781] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  227.089089]  ? should_fail+0x22d/0xd01
[  227.094171] syz-fuzzer cpuset=/ mems_allowed=0
[  227.100656]  ? find_held_lock+0x36/0x1c0
[  227.136960]  ? mark_held_locks+0x130/0x130
[  227.141200]  ? mark_held_locks+0x130/0x130
[  227.145436]  ? zap_class+0x640/0x640
[  227.149152]  ? zap_class+0x640/0x640
[  227.152867]  ? print_usage_bug+0xc0/0xc0
[  227.156929]  ? do_raw_spin_unlock+0xa7/0x330
[  227.161356]  ? zap_class+0x640/0x640
[  227.165073]  ? print_usage_bug+0xc0/0xc0
[  227.169143]  ? wq_watchdog_touch+0x9c/0xfe
[  227.173381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.178924]  ? check_preemption_disabled+0x48/0x280
[  227.183955]  ? __lock_is_held+0xb5/0x140
[  227.188022]  __alloc_pages_nodemask+0xa80/0xde0
[  227.192693]  ? zap_class+0x640/0x640
[  227.196422]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  227.201464]  ? find_held_lock+0x36/0x1c0
[  227.205534]  ? ____cache_alloc_node+0x1c7/0x1e0
[  227.210205]  ? lock_downgrade+0x900/0x900
[  227.214364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.219912]  cache_grow_begin+0xa5/0x8c0
[  227.223979]  ? do_raw_spin_unlock+0xa7/0x330
[  227.228401]  fallback_alloc+0x204/0x2e0
[  227.232384]  ____cache_alloc_node+0x1c7/0x1e0
[  227.236884]  kmem_cache_alloc_node+0xe3/0x730
[  227.241382]  ? ipv6_get_ifaddr+0x42e/0x620
[  227.245628]  __alloc_skb+0x119/0x770
[  227.249429]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.254712]  ? netdev_alloc_frag+0x1f0/0x1f0
[  227.259135]  ? lock_downgrade+0x900/0x900
[  227.263293]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.268850]  ? refcount_sub_and_test_checked+0x203/0x310
[  227.274309]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  227.279766]  ? addrconf_rs_timer+0x690/0x690
[  227.284193]  ndisc_alloc_skb+0x144/0x340
[  227.288264]  ndisc_send_rs+0x331/0x6e0
[  227.292161]  addrconf_rs_timer+0x314/0x690
[  227.296402]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  227.300648]  call_timer_fn+0x272/0x920
[  227.304535]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  227.308776]  ? process_timeout+0x40/0x40
[  227.312848]  ? __run_timers+0x7da/0xc70
[  227.316824]  ? _raw_spin_unlock_irq+0x27/0x80
[  227.321322]  ? _raw_spin_unlock_irq+0x27/0x80
[  227.325819]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  227.330058]  ? lockdep_hardirqs_on+0x296/0x5b0
[  227.334647]  ? trace_hardirqs_on+0xbd/0x310
[  227.338970]  ? kasan_check_read+0x11/0x20
[  227.343118]  ? __run_timers+0x7da/0xc70
[  227.347096]  ? trace_hardirqs_off_caller+0x310/0x310
[  227.352204]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  227.356447]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  227.360679]  __run_timers+0x7e5/0xc70
[  227.364491]  ? timer_fixup_init+0x70/0x70
[  227.368641]  ? kasan_check_read+0x11/0x20
[  227.372790]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.378067]  ? rcu_softirq_qs+0x20/0x20
[  227.382052]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.387593]  ? check_preemption_disabled+0x48/0x280
[  227.392620]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  227.397383]  ? retint_kernel+0x2d/0x2d
[  227.401278]  ? trace_hardirqs_on_caller+0xc0/0x310
[  227.406213]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  227.410974]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  227.416427]  ? zap_class+0x640/0x640
[  227.420162]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.425702]  ? check_preemption_disabled+0x48/0x280
[  227.430754]  ? __lock_is_held+0xb5/0x140
[  227.434823]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.440363]  ? check_preemption_disabled+0x48/0x280
[  227.445389]  run_timer_softirq+0x52/0xb0
[  227.449456]  ? rcu_read_lock_sched_held+0x14f/0x180
[  227.454476]  __do_softirq+0x308/0xb7e
[  227.458287]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  227.462789]  ? lock_downgrade+0x900/0x900
[  227.466948]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  227.472065]  ? pvclock_read_flags+0x160/0x160
[  227.476562]  ? lapic_next_event+0x5a/0x90
[  227.480715]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.486271]  ? kvm_clock_read+0x18/0x30
[  227.490251]  ? kvm_sched_clock_read+0x9/0x20
[  227.494665]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.500206]  ? check_preemption_disabled+0x48/0x280
[  227.505239]  irq_exit+0x17f/0x1c0
[  227.508710]  smp_apic_timer_interrupt+0x1cb/0x760
[  227.513568]  ? smp_reschedule_interrupt+0x109/0x650
[  227.518587]  ? smp_call_function_single_interrupt+0x650/0x650
[  227.524472]  ? interrupt_entry+0xb5/0xc0
[  227.528536]  ? trace_hardirqs_off_caller+0xbb/0x310
[  227.533555]  ? trace_hardirqs_off_caller+0xbb/0x310
[  227.538577]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.543424]  ? trace_hardirqs_on_caller+0x310/0x310
[  227.548443]  ? trace_hardirqs_on_caller+0x310/0x310
[  227.553459]  ? task_prio+0x50/0x50
[  227.557006]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.562546]  ? check_preemption_disabled+0x48/0x280
[  227.567569]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.572441]  apic_timer_interrupt+0xf/0x20
[  227.576670]  </IRQ>
[  227.578914] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  227.583846] 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
[  227.602754] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  227.610464] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  227.617743] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  227.625013] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  227.632281] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  227.639548] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  227.646868]  skb_clone+0x1bb/0x500
[  227.650413]  ? skb_split+0x11e0/0x11e0
[  227.654342]  ? preempt_notifier_register+0x200/0x200
[  227.659442]  ? __switch_to_asm+0x34/0x70
[  227.663504]  ? __switch_to_asm+0x34/0x70
[  227.667562]  ? __switch_to_asm+0x40/0x70
[  227.671622]  ? __switch_to_asm+0x34/0x70
[  227.675680]  ? __switch_to_asm+0x40/0x70
[  227.679751]  ? __switch_to_asm+0x40/0x70
[  227.683817]  ? __switch_to_asm+0x34/0x70
[  227.687879]  ? __switch_to_asm+0x34/0x70
[  227.691954]  ? __switch_to_asm+0x40/0x70
[  227.696013]  ? __switch_to_asm+0x34/0x70
[  227.700083]  bpf_clone_redirect+0xb9/0x490
[  227.704333]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  227.709353]  ? __sched_text_start+0x8/0x8
[  227.713501]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  227.718265]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  227.723033]  ? find_held_lock+0x36/0x1c0
[  227.727102]  ? lock_acquire+0x1ed/0x520
[  227.731080]  ? bpf_test_run+0x3cb/0x780
[  227.735065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  227.740604]  ? check_preemption_disabled+0x48/0x280
[  227.745632]  ? kasan_check_read+0x11/0x20
[  227.749780]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  227.755055]  ? rcu_softirq_qs+0x20/0x20
[  227.759034]  ? preempt_schedule+0x4d/0x60
[  227.763181]  ? ___preempt_schedule+0x16/0x18
[  227.767598]  ? bpf_test_run+0x25d/0x780
[  227.771588]  ? netlink_diag_dump+0x2a0/0x2a0
[  227.776002]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.781543]  ? bpf_test_init.isra.10+0x70/0x100
[  227.786218]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  227.790991]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  227.795833]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  227.801371]  ? fput+0x130/0x1a0
[  227.804653]  ? __bpf_prog_get+0x9b/0x290
[  227.808741]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  227.814057]  ? bpf_prog_test_run+0x130/0x1a0
[  227.818481]  ? __x64_sys_bpf+0x3d8/0x520
[  227.822546]  ? bpf_prog_get+0x20/0x20
[  227.826366]  ? do_syscall_64+0x1b9/0x820
[  227.830429]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  227.835798]  ? syscall_return_slowpath+0x5e0/0x5e0
[  227.840747]  ? trace_hardirqs_on_caller+0x310/0x310
[  227.845942]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  227.850969]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  227.857636]  ? __switch_to_asm+0x40/0x70
[  227.861711]  ? __switch_to_asm+0x34/0x70
[  227.865801]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  227.870650]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  227.876037] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  227.876106] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  227.882963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  227.882969] Call Trace:
[  227.882976]  <IRQ>
[  227.882993]  dump_stack+0x244/0x39d
[  227.883012]  ? dump_stack_print_info.cold.1+0x20/0x20
[  227.889540] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  227.898841]  warn_alloc.cold.116+0xb7/0x1bd
[  227.901404] syz-executor4 cpuset=syz4 mems_allowed=0
[  227.903549]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  227.937030]  ? lock_downgrade+0x900/0x900
[  227.941202]  ? trace_hardirqs_off+0xb8/0x310
[  227.945636]  ? trace_hardirqs_off+0xb8/0x310
[  227.950052]  __alloc_pages_slowpath+0x26e8/0x2e10
[  227.954925]  ? warn_alloc+0x120/0x120
[  227.958742]  ? print_usage_bug+0xc0/0xc0
[  227.962809]  ? warn_alloc+0x120/0x120
[  227.966633]  ? warn_alloc+0x120/0x120
[  227.970452]  ? print_usage_bug+0xc0/0xc0
[  227.974533]  ? print_usage_bug+0xc0/0xc0
[  227.978613]  ? __lock_acquire+0x62f/0x4c20
[  227.982864]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  227.988403]  ? should_fail+0x22d/0xd01
[  227.992298]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  227.997406]  ? __lock_acquire+0x62f/0x4c20
[  228.001657]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  228.006760]  ? __lock_acquire+0x62f/0x4c20
[  228.010999]  ? should_fail+0x22d/0xd01
[  228.014888]  ? find_held_lock+0x36/0x1c0
[  228.018964]  ? mark_held_locks+0x130/0x130
[  228.023211]  ? mark_held_locks+0x130/0x130
[  228.027479]  ? zap_class+0x640/0x640
[  228.031193]  ? zap_class+0x640/0x640
[  228.034915]  ? print_usage_bug+0xc0/0xc0
[  228.038979]  ? do_raw_spin_unlock+0xa7/0x330
[  228.043390]  ? zap_class+0x640/0x640
[  228.047108]  ? print_usage_bug+0xc0/0xc0
[  228.051170]  ? wq_watchdog_touch+0x9c/0xfe
[  228.055413]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.060966]  ? check_preemption_disabled+0x48/0x280
[  228.065996]  ? __lock_is_held+0xb5/0x140
[  228.070063]  __alloc_pages_nodemask+0xa80/0xde0
[  228.074780]  ? zap_class+0x640/0x640
[  228.078499]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  228.083530]  ? find_held_lock+0x36/0x1c0
[  228.087604]  ? ____cache_alloc_node+0x1c7/0x1e0
[  228.092276]  ? lock_downgrade+0x900/0x900
[  228.096431]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.101977]  cache_grow_begin+0xa5/0x8c0
[  228.106047]  ? do_raw_spin_unlock+0xa7/0x330
[  228.110464]  fallback_alloc+0x204/0x2e0
[  228.114446]  ____cache_alloc_node+0x1c7/0x1e0
[  228.118948]  kmem_cache_alloc_node+0xe3/0x730
[  228.123474]  ? ipv6_get_ifaddr+0x42e/0x620
[  228.127719]  __alloc_skb+0x119/0x770
[  228.131447]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  228.136737]  ? netdev_alloc_frag+0x1f0/0x1f0
[  228.141152]  ? lock_downgrade+0x900/0x900
[  228.145306]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.150859]  ? refcount_sub_and_test_checked+0x203/0x310
[  228.156314]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  228.161780]  ? addrconf_rs_timer+0x690/0x690
[  228.166219]  ndisc_alloc_skb+0x144/0x340
[  228.170290]  ndisc_send_rs+0x331/0x6e0
[  228.174189]  addrconf_rs_timer+0x314/0x690
[  228.178460]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.182707]  call_timer_fn+0x272/0x920
[  228.186602]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.190840]  ? process_timeout+0x40/0x40
[  228.194919]  ? mark_held_locks+0xc7/0x130
[  228.199071]  ? _raw_spin_unlock_irq+0x27/0x80
[  228.203567]  ? _raw_spin_unlock_irq+0x27/0x80
[  228.208061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.212300]  ? lockdep_hardirqs_on+0x296/0x5b0
[  228.216888]  ? trace_hardirqs_on+0xbd/0x310
[  228.221225]  ? kasan_check_read+0x11/0x20
[  228.225380]  ? __run_timers+0x7da/0xc70
[  228.229357]  ? trace_hardirqs_off_caller+0x310/0x310
[  228.234468]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.238709]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  228.242964]  __run_timers+0x7e5/0xc70
[  228.246775]  ? timer_fixup_init+0x70/0x70
[  228.250926]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  228.255943]  ? zap_class+0x640/0x640
[  228.259694]  ? print_usage_bug+0xc0/0xc0
[  228.263786]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  228.268986]  ? find_held_lock+0x36/0x1c0
[  228.273055]  ? zap_class+0x640/0x640
[  228.276775]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.282327]  ? check_preemption_disabled+0x48/0x280
[  228.287356]  ? __lock_is_held+0xb5/0x140
[  228.291422]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.296961]  ? check_preemption_disabled+0x48/0x280
[  228.301984]  run_timer_softirq+0x52/0xb0
[  228.306044]  ? rcu_read_lock_sched_held+0x14f/0x180
[  228.311064]  __do_softirq+0x308/0xb7e
[  228.314873]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  228.319370]  ? lock_downgrade+0x900/0x900
[  228.323523]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  228.328676]  ? pvclock_read_flags+0x160/0x160
[  228.333175]  ? lapic_next_event+0x5a/0x90
[  228.337329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.342874]  ? kvm_clock_read+0x18/0x30
[  228.346850]  ? kvm_sched_clock_read+0x9/0x20
[  228.351297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.356836]  ? check_preemption_disabled+0x48/0x280
[  228.361868]  irq_exit+0x17f/0x1c0
[  228.365340]  smp_apic_timer_interrupt+0x1cb/0x760
[  228.370183]  ? smp_reschedule_interrupt+0x109/0x650
[  228.375204]  ? smp_call_function_single_interrupt+0x650/0x650
[  228.381107]  ? interrupt_entry+0xb5/0xc0
[  228.385174]  ? trace_hardirqs_off_caller+0xbb/0x310
[  228.390188]  ? trace_hardirqs_off_caller+0xbb/0x310
[  228.395212]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  228.400065]  ? trace_hardirqs_on_caller+0x310/0x310
[  228.405079]  ? trace_hardirqs_on_caller+0x310/0x310
[  228.410111]  ? task_prio+0x50/0x50
[  228.413652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.419191]  ? check_preemption_disabled+0x48/0x280
[  228.424219]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  228.429075]  apic_timer_interrupt+0xf/0x20
[  228.433308]  </IRQ>
[  228.435552] RIP: 0010:check_memory_region+0x121/0x1b0
[  228.440749] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  228.459651] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  228.467362] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  228.474640] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  228.481949] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  228.489217] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  228.496492] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  228.503792]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  228.509085]  kasan_check_read+0x11/0x20
[  228.513096]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  228.518205]  ? rcu_softirq_qs+0x20/0x20
[  228.522199]  rcu_is_watching+0x10/0x30
[  228.526088]  list_lru_count_one+0x362/0x450
[  228.530411]  ? list_lru_isolate_move+0x3c0/0x3c0
[  228.535167]  ? shmem_free_inode+0xd0/0xd0
[  228.539367]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  228.544908]  ? ubifs_shrink_count+0xc4/0x100
[  228.549329]  super_cache_count+0x153/0x2e0
[  228.553571]  do_shrink_slab+0x1b1/0xd30
[  228.557551]  ? lock_acquire+0x1ed/0x520
[  228.561529]  ? snapshot_refaults+0x290/0x290
[  228.565942]  ? lock_release+0xa00/0xa00
[  228.569928]  ? perf_trace_sched_process_exec+0x860/0x860
[  228.575394]  ? down_read_trylock+0xda/0x140
[  228.579715]  ? shrink_slab+0x207/0x8c0
[  228.583627]  ? downgrade_write+0x270/0x270
[  228.587891]  shrink_slab+0x389/0x8c0
[  228.591635]  ? shrink_active_list+0x1f00/0x1f00
[  228.596326]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  228.601973]  ? kasan_check_read+0x11/0x20
[  228.606124]  ? do_raw_spin_unlock+0xa7/0x330
[  228.610540]  ? ___preempt_schedule+0x16/0x18
[  228.614962]  ? _raw_spin_unlock+0x3f/0x50
[  228.619122]  shrink_node+0x431/0x16b0
[  228.622952]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  228.628260]  ? shrink_node_memcg+0x18f0/0x18f0
[  228.632845]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  228.637431]  ? trace_hardirqs_on+0xbd/0x310
[  228.641767]  ? vmpressure+0x271/0x340
[  228.645586]  ? do_raw_spin_trylock+0x270/0x270
[  228.650190]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  228.655787]  ? __cpuset_node_allowed+0x19b/0x660
[  228.660550]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  228.666285]  ? vmpressure+0x1a2/0x340
[  228.670092]  do_try_to_free_pages+0x3e7/0x1290
[  228.674672]  ? zap_class+0x640/0x640
[  228.678403]  ? shrink_node+0x16b0/0x16b0
[  228.682472]  ? __lock_is_held+0xb5/0x140
[  228.686576]  try_to_free_pages+0x4d0/0xb90
[  228.690822]  ? do_try_to_free_pages+0x1290/0x1290
[  228.695682]  ? lock_acquire+0x1ed/0x520
[  228.699658]  ? set_page_refcounted+0x280/0x280
[  228.704257]  ? lock_release+0xa00/0xa00
[  228.708232]  ? _raw_spin_unlock_irq+0x60/0x80
[  228.712741]  ? psi_memstall_enter+0x240/0x2b0
[  228.717246]  ? psi_memstall_tick+0x230/0x230
[  228.721670]  __alloc_pages_slowpath+0xa14/0x2e10
[  228.726460]  ? warn_alloc+0x120/0x120
[  228.730262]  ? mark_held_locks+0x130/0x130
[  228.734503]  ? find_get_entry+0xaae/0x1120
[  228.738757]  ? filemap_map_pages+0x1a20/0x1a20
[  228.743346]  ? zap_class+0x640/0x640
[  228.747068]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  228.752609]  ? check_preemption_disabled+0x48/0x280
[  228.757627]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  228.763173]  ? should_fail+0x22d/0xd01
[  228.767069]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  228.772179]  ? zap_class+0x640/0x640
[  228.775930]  ? __lock_is_held+0xb5/0x140
[  228.779998]  ? mark_held_locks+0x130/0x130
[  228.784275]  ? lock_release+0xa00/0xa00
[  228.788265]  ? perf_trace_sched_process_exec+0x860/0x860
[  228.793718]  ? xa_load+0x2ba/0x460
[  228.797274]  ? lock_downgrade+0x900/0x900
[  228.801428]  ? __might_sleep+0x95/0x190
[  228.805408]  __alloc_pages_nodemask+0xa80/0xde0
[  228.810101]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  228.815123]  ? __page_cache_alloc+0x191/0x5c0
[  228.819619]  ? xa_load+0x2e1/0x460
[  228.823167]  ? xa_clear_mark+0x40/0x40
[  228.827057]  ? zap_class+0x640/0x640
[  228.830784]  ? zap_class+0x640/0x640
[  228.834499]  ? zap_class+0x640/0x640
[  228.838212]  ? __do_page_cache_readahead+0x663/0x810
[  228.843326]  ? find_held_lock+0x36/0x1c0
[  228.847428]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  228.852987]  alloc_pages_current+0x173/0x350
[  228.857403]  __page_cache_alloc+0x38c/0x5c0
[  228.861731]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  228.866662]  ? kasan_check_read+0x11/0x20
[  228.870812]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  228.876095]  ? generic_perform_write+0x6a0/0x6a0
[  228.880858]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  228.886397]  ? check_preemption_disabled+0x48/0x280
[  228.891425]  filemap_fault+0x1595/0x25f0
[  228.895532]  ? __lock_page_or_retry+0xa00/0xa00
[  228.900208]  ? mark_held_locks+0x130/0x130
[  228.904458]  ? filemap_map_pages+0xd6b/0x1a20
[  228.908967]  ? lock_downgrade+0x900/0x900
[  228.913120]  ? check_preemption_disabled+0x48/0x280
[  228.918140]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  228.923068]  ? kasan_check_read+0x11/0x20
[  228.927215]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  228.932494]  ? rcu_softirq_qs+0x20/0x20
[  228.936495]  ? filemap_map_pages+0xd92/0x1a20
[  228.941010]  ? find_get_entries_tag+0x1400/0x1400
[  228.946347]  ? find_held_lock+0x36/0x1c0
[  228.950432]  ? lock_acquire+0x1ed/0x520
[  228.954412]  ? ext4_filemap_fault+0x7a/0xad
[  228.958751]  ? lock_release+0xa00/0xa00
[  228.962745]  ? perf_trace_sched_process_exec+0x860/0x860
[  228.968202]  ? print_usage_bug+0xc0/0xc0
[  228.972315]  ? down_read+0x8d/0x120
[  228.975943]  ? ext4_filemap_fault+0x7a/0xad
[  228.980277]  ? __down_interruptible+0x700/0x700
[  228.984951]  ? find_held_lock+0x36/0x1c0
[  228.989019]  ext4_filemap_fault+0x82/0xad
[  228.993172]  __do_fault+0x100/0x6b0
[  228.996801]  ? lock_downgrade+0x900/0x900
[  229.000951]  ? pmd_devmap_trans_unstable+0x220/0x220
[  229.006061]  ? kasan_check_read+0x11/0x20
[  229.010207]  ? do_raw_spin_unlock+0xa7/0x330
[  229.014633]  ? do_raw_spin_trylock+0x270/0x270
[  229.019232]  __handle_mm_fault+0x3ea0/0x5be0
[  229.023655]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  229.028509]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  229.033104]  ? zap_class+0x640/0x640
[  229.036819]  ? zap_class+0x640/0x640
[  229.040533]  ? __x64_sys_futex+0x53e/0x6a0
[  229.044778]  ? find_held_lock+0x36/0x1c0
[  229.048848]  ? handle_mm_fault+0x42a/0xc70
[  229.053087]  ? lock_downgrade+0x900/0x900
[  229.057248]  ? check_preemption_disabled+0x48/0x280
[  229.062276]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  229.067216]  ? kasan_check_read+0x11/0x20
[  229.071386]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.076663]  ? rcu_softirq_qs+0x20/0x20
[  229.080644]  ? trace_hardirqs_off_caller+0x310/0x310
[  229.085758]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.091302]  ? check_preemption_disabled+0x48/0x280
[  229.096331]  handle_mm_fault+0x54f/0xc70
[  229.100399]  ? __handle_mm_fault+0x5be0/0x5be0
[  229.104991]  ? find_vma+0x34/0x190
[  229.108539]  __do_page_fault+0x5e8/0xe60
[  229.112603]  ? trace_hardirqs_off+0xb8/0x310
[  229.117024]  do_page_fault+0xf2/0x7e0
[  229.120827]  ? vmalloc_sync_all+0x30/0x30
[  229.124977]  ? error_entry+0x70/0xd0
[  229.128695]  ? trace_hardirqs_off_caller+0xbb/0x310
[  229.133732]  ? trace_hardirqs_on_caller+0xc0/0x310
[  229.138670]  ? syscall_return_slowpath+0x5e0/0x5e0
[  229.143599]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  229.148442]  ? trace_hardirqs_on_caller+0x310/0x310
[  229.153485]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  229.158943]  ? prepare_exit_to_usermode+0x291/0x3b0
[  229.163960]  ? page_fault+0x8/0x30
[  229.167511]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  229.172356]  ? page_fault+0x8/0x30
[  229.175899]  page_fault+0x1e/0x30
[  229.179365] RIP: 0033:0x404068
[  229.182602] Code: Bad RIP value.
[  229.185964] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  229.191327] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  229.198594] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  229.205866] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  229.213132] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  229.220402] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  229.227694] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  229.227699] warn_alloc_show_mem: 1 callbacks suppressed
[  229.227706] Mem-Info:
[  229.235023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  229.240396] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  229.240396]  active_file:13 inactive_file:28 isolated_file:0
[  229.240396]  unevictable:0 dirty:1 writeback:0 unstable:0
[  229.240396]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  229.240396]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  229.240396]  free:13541 free_pcp:161 free_cma:0
[  229.242773] Call Trace:
[  229.252165] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  229.285183]  <IRQ>
[  229.287757] 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
[  229.315684]  dump_stack+0x244/0x39d
[  229.317806] lowmem_reserve[]: 0 2818 6321 6321
[  229.343914]  ? dump_stack_print_info.cold.1+0x20/0x20
[  229.347516] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  229.352103]  warn_alloc.cold.116+0xb7/0x1bd
[  229.357260] lowmem_reserve[]: 0 0 3503 3503
[  229.384842]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  229.389140] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  229.393458]  ? lock_downgrade+0x900/0x900
[  229.398273] lowmem_reserve[]: 0 0 0 0
[  229.427420]  ? trace_hardirqs_off+0xb8/0x310
[  229.431542] 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
[  229.435342]  ? trace_hardirqs_off+0xb8/0x310
[  229.439742] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  229.453271]  __alloc_pages_slowpath+0x26e8/0x2e10
[  229.457652] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  229.472848]  ? warn_alloc+0x120/0x120
[  229.477653] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  229.492120]  ? print_usage_bug+0xc0/0xc0
[  229.495902] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  229.504731]  ? warn_alloc+0x120/0x120
[  229.508770] 4984 total pagecache pages
[  229.517342]  ? warn_alloc+0x120/0x120
[  229.521125] 0 pages in swap cache
[  229.525000]  ? print_usage_bug+0xc0/0xc0
[  229.528777] Swap cache stats: add 0, delete 0, find 0/0
[  229.532224]  ? print_usage_bug+0xc0/0xc0
[  229.536301] Free swap  = 0kB
[  229.541656]  ? __lock_acquire+0x62f/0x4c20
[  229.545693] Total swap = 0kB
[  229.548746]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  229.552947] 1965979 pages RAM
[  229.555962]  ? should_fail+0x22d/0xd01
[  229.561471] 0 pages HighMem/MovableOnly
[  229.564572]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  229.568434] 342853 pages reserved
[  229.572405]  ? __lock_acquire+0x62f/0x4c20
[  229.577486] 0 pages cma reserved
[  229.580933]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  229.585207] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  229.588499]  ? __lock_acquire+0x62f/0x4c20
[  229.588516]  ? should_fail+0x22d/0xd01
[  229.593687] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  229.600088]  ? find_held_lock+0x36/0x1c0
[  229.604302] syz-fuzzer cpuset=/ mems_allowed=0
[  229.608187]  ? mark_held_locks+0x130/0x130
[  229.631235]  ? mark_held_locks+0x130/0x130
[  229.635469]  ? zap_class+0x640/0x640
[  229.639183]  ? zap_class+0x640/0x640
[  229.642900]  ? print_usage_bug+0xc0/0xc0
[  229.646962]  ? do_raw_spin_unlock+0xa7/0x330
[  229.651374]  ? zap_class+0x640/0x640
[  229.655088]  ? print_usage_bug+0xc0/0xc0
[  229.659148]  ? wq_watchdog_touch+0x9c/0xfe
[  229.663388]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.668932]  ? check_preemption_disabled+0x48/0x280
[  229.673959]  ? __lock_is_held+0xb5/0x140
[  229.678027]  __alloc_pages_nodemask+0xa80/0xde0
[  229.682702]  ? zap_class+0x640/0x640
[  229.686433]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  229.691460]  ? find_held_lock+0x36/0x1c0
[  229.695537]  ? ____cache_alloc_node+0x1c7/0x1e0
[  229.700210]  ? lock_downgrade+0x900/0x900
[  229.704368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.709911]  cache_grow_begin+0xa5/0x8c0
[  229.713976]  ? do_raw_spin_unlock+0xa7/0x330
[  229.718394]  fallback_alloc+0x204/0x2e0
[  229.722375]  ____cache_alloc_node+0x1c7/0x1e0
[  229.726879]  kmem_cache_alloc_node+0xe3/0x730
[  229.731389]  ? ipv6_get_ifaddr+0x42e/0x620
[  229.735635]  __alloc_skb+0x119/0x770
[  229.739378]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.744663]  ? netdev_alloc_frag+0x1f0/0x1f0
[  229.749073]  ? lock_downgrade+0x900/0x900
[  229.753230]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.758769]  ? refcount_sub_and_test_checked+0x203/0x310
[  229.764226]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  229.769682]  ? addrconf_rs_timer+0x690/0x690
[  229.774105]  ndisc_alloc_skb+0x144/0x340
[  229.778172]  ndisc_send_rs+0x331/0x6e0
[  229.782067]  addrconf_rs_timer+0x314/0x690
[  229.786307]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  229.790552]  call_timer_fn+0x272/0x920
[  229.794441]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  229.798691]  ? process_timeout+0x40/0x40
[  229.802775]  ? __run_timers+0x7da/0xc70
[  229.806760]  ? _raw_spin_unlock_irq+0x27/0x80
[  229.811257]  ? _raw_spin_unlock_irq+0x27/0x80
[  229.816228]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  229.820469]  ? lockdep_hardirqs_on+0x296/0x5b0
[  229.825066]  ? trace_hardirqs_on+0xbd/0x310
[  229.829388]  ? kasan_check_read+0x11/0x20
[  229.833541]  ? __run_timers+0x7da/0xc70
[  229.837521]  ? trace_hardirqs_off_caller+0x310/0x310
[  229.842632]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  229.846871]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  229.851107]  __run_timers+0x7e5/0xc70
[  229.854925]  ? timer_fixup_init+0x70/0x70
[  229.859079]  ? kasan_check_read+0x11/0x20
[  229.863234]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  229.868510]  ? rcu_softirq_qs+0x20/0x20
[  229.872487]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.878030]  ? check_preemption_disabled+0x48/0x280
[  229.883052]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  229.887835]  ? retint_kernel+0x2d/0x2d
[  229.891742]  ? trace_hardirqs_on_caller+0xc0/0x310
[  229.896680]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  229.901442]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  229.906897]  ? zap_class+0x640/0x640
[  229.910618]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.916162]  ? check_preemption_disabled+0x48/0x280
[  229.921192]  ? __lock_is_held+0xb5/0x140
[  229.925260]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.930800]  ? check_preemption_disabled+0x48/0x280
[  229.935827]  run_timer_softirq+0x52/0xb0
[  229.939890]  ? rcu_read_lock_sched_held+0x14f/0x180
[  229.944909]  __do_softirq+0x308/0xb7e
[  229.948718]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  229.953229]  ? lock_downgrade+0x900/0x900
[  229.957386]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  229.962499]  ? pvclock_read_flags+0x160/0x160
[  229.967003]  ? lapic_next_event+0x5a/0x90
[  229.971156]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.976699]  ? kvm_clock_read+0x18/0x30
[  229.980690]  ? kvm_sched_clock_read+0x9/0x20
[  229.985110]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  229.990650]  ? check_preemption_disabled+0x48/0x280
[  229.995681]  irq_exit+0x17f/0x1c0
[  229.999139]  smp_apic_timer_interrupt+0x1cb/0x760
[  230.003981]  ? smp_reschedule_interrupt+0x109/0x650
[  230.008998]  ? smp_call_function_single_interrupt+0x650/0x650
[  230.014883]  ? interrupt_entry+0xb5/0xc0
[  230.018950]  ? trace_hardirqs_off_caller+0xbb/0x310
[  230.023969]  ? trace_hardirqs_off_caller+0xbb/0x310
[  230.028990]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.033836]  ? trace_hardirqs_on_caller+0x310/0x310
[  230.038856]  ? trace_hardirqs_on_caller+0x310/0x310
[  230.043873]  ? task_prio+0x50/0x50
[  230.047416]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  230.052960]  ? check_preemption_disabled+0x48/0x280
[  230.057984]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.062840]  apic_timer_interrupt+0xf/0x20
[  230.067068]  </IRQ>
[  230.069316] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  230.074246] 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
[  230.093145] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  230.100857] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  230.108126] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  230.115391] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  230.122662] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  230.129929] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  230.137240]  skb_clone+0x1bb/0x500
[  230.140784]  ? skb_split+0x11e0/0x11e0
[  230.144680]  ? preempt_notifier_register+0x200/0x200
[  230.149786]  ? __switch_to_asm+0x34/0x70
[  230.153847]  ? __switch_to_asm+0x34/0x70
[  230.157909]  ? __switch_to_asm+0x40/0x70
[  230.161967]  ? __switch_to_asm+0x34/0x70
[  230.166048]  ? __switch_to_asm+0x40/0x70
[  230.170119]  ? __switch_to_asm+0x40/0x70
[  230.174179]  ? __switch_to_asm+0x34/0x70
[  230.178242]  ? __switch_to_asm+0x34/0x70
[  230.182305]  ? __switch_to_asm+0x40/0x70
[  230.186368]  ? __switch_to_asm+0x34/0x70
[  230.190439]  bpf_clone_redirect+0xb9/0x490
[  230.194685]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  230.199707]  ? __sched_text_start+0x8/0x8
[  230.203873]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  230.208638]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  230.213406]  ? find_held_lock+0x36/0x1c0
[  230.217476]  ? lock_acquire+0x1ed/0x520
[  230.221454]  ? bpf_test_run+0x3cb/0x780
[  230.225441]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.230985]  ? check_preemption_disabled+0x48/0x280
[  230.236010]  ? kasan_check_read+0x11/0x20
[  230.240165]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  230.245447]  ? rcu_softirq_qs+0x20/0x20
[  230.249429]  ? preempt_schedule+0x4d/0x60
[  230.253581]  ? ___preempt_schedule+0x16/0x18
[  230.257999]  ? bpf_test_run+0x25d/0x780
[  230.261990]  ? netlink_diag_dump+0x2a0/0x2a0
[  230.266408]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  230.271948]  ? bpf_test_init.isra.10+0x70/0x100
[  230.276624]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  230.281396]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  230.286237]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  230.291776]  ? fput+0x130/0x1a0
[  230.295057]  ? __bpf_prog_get+0x9b/0x290
[  230.299125]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  230.303969]  ? bpf_prog_test_run+0x130/0x1a0
[  230.308385]  ? __x64_sys_bpf+0x3d8/0x520
[  230.312452]  ? bpf_prog_get+0x20/0x20
[  230.316278]  ? do_syscall_64+0x1b9/0x820
[  230.320338]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  230.325708]  ? syscall_return_slowpath+0x5e0/0x5e0
[  230.330653]  ? trace_hardirqs_on_caller+0x310/0x310
[  230.335679]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  230.340702]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  230.347382]  ? __switch_to_asm+0x40/0x70
[  230.351440]  ? __switch_to_asm+0x34/0x70
[  230.355506]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.360361]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  230.365760] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  230.365831] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  230.372692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  230.372697] Call Trace:
[  230.372704]  <IRQ>
[  230.372722]  dump_stack+0x244/0x39d
[  230.372753]  ? dump_stack_print_info.cold.1+0x20/0x20
[  230.379285] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  230.388588]  warn_alloc.cold.116+0xb7/0x1bd
[  230.391144] syz-executor4 cpuset=syz4 mems_allowed=0
[  230.393290]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  230.426771]  ? lock_downgrade+0x900/0x900
[  230.430932]  ? trace_hardirqs_off+0xb8/0x310
[  230.435351]  ? trace_hardirqs_off+0xb8/0x310
[  230.439773]  __alloc_pages_slowpath+0x26e8/0x2e10
[  230.444651]  ? warn_alloc+0x120/0x120
[  230.448460]  ? print_usage_bug+0xc0/0xc0
[  230.452529]  ? warn_alloc+0x120/0x120
[  230.456339]  ? warn_alloc+0x120/0x120
[  230.460146]  ? print_usage_bug+0xc0/0xc0
[  230.464210]  ? kvm_clock_read+0x18/0x30
[  230.468198]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  230.473216]  ? print_usage_bug+0xc0/0xc0
[  230.477283]  ? __lock_acquire+0x62f/0x4c20
[  230.481528]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  230.487065]  ? should_fail+0x22d/0xd01
[  230.490951]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  230.496241]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  230.501361]  ? __lock_acquire+0x62f/0x4c20
[  230.505602]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  230.510705]  ? __lock_acquire+0x62f/0x4c20
[  230.514946]  ? should_fail+0x22d/0xd01
[  230.518834]  ? rcu_irq_exit+0x1a2/0x390
[  230.522822]  ? mark_held_locks+0x130/0x130
[  230.527071]  ? mark_held_locks+0x130/0x130
[  230.531324]  ? mark_held_locks+0xc7/0x130
[  230.535475]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  230.540495]  ? zap_class+0x640/0x640
[  230.544213]  ? print_usage_bug+0xc0/0xc0
[  230.548314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.553859]  ? check_preemption_disabled+0x48/0x280
[  230.558891]  ? __lock_is_held+0xb5/0x140
[  230.562960]  __alloc_pages_nodemask+0xa80/0xde0
[  230.567632]  ? zap_class+0x640/0x640
[  230.571353]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  230.576382]  ? find_held_lock+0x36/0x1c0
[  230.580457]  ? ____cache_alloc_node+0x1c7/0x1e0
[  230.585131]  ? lock_downgrade+0x900/0x900
[  230.589288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.594837]  cache_grow_begin+0xa5/0x8c0
[  230.598901]  ? do_raw_spin_unlock+0xa7/0x330
[  230.603320]  fallback_alloc+0x204/0x2e0
[  230.607336]  ____cache_alloc_node+0x1c7/0x1e0
[  230.611839]  kmem_cache_alloc_node+0xe3/0x730
[  230.616340]  ? ipv6_get_ifaddr+0x42e/0x620
[  230.620592]  __alloc_skb+0x119/0x770
[  230.624305]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  230.629586]  ? netdev_alloc_frag+0x1f0/0x1f0
[  230.633999]  ? lock_downgrade+0x900/0x900
[  230.638158]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.643697]  ? refcount_sub_and_test_checked+0x203/0x310
[  230.649163]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  230.654615]  ? addrconf_rs_timer+0x690/0x690
[  230.659042]  ndisc_alloc_skb+0x144/0x340
[  230.663114]  ndisc_send_rs+0x331/0x6e0
[  230.667013]  addrconf_rs_timer+0x314/0x690
[  230.671261]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.675507]  call_timer_fn+0x272/0x920
[  230.679399]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.683637]  ? process_timeout+0x40/0x40
[  230.687711]  ? mark_held_locks+0xc7/0x130
[  230.691874]  ? _raw_spin_unlock_irq+0x27/0x80
[  230.696369]  ? _raw_spin_unlock_irq+0x27/0x80
[  230.700866]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.705106]  ? lockdep_hardirqs_on+0x296/0x5b0
[  230.709692]  ? trace_hardirqs_on+0xbd/0x310
[  230.714023]  ? kasan_check_read+0x11/0x20
[  230.718170]  ? __run_timers+0x7da/0xc70
[  230.722148]  ? trace_hardirqs_off_caller+0x310/0x310
[  230.727263]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.731509]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  230.735763]  __run_timers+0x7e5/0xc70
[  230.739575]  ? timer_fixup_init+0x70/0x70
[  230.743732]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  230.748773]  ? zap_class+0x640/0x640
[  230.752494]  ? print_usage_bug+0xc0/0xc0
[  230.756558]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  230.761764]  ? find_held_lock+0x36/0x1c0
[  230.765833]  ? zap_class+0x640/0x640
[  230.769553]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.775093]  ? check_preemption_disabled+0x48/0x280
[  230.780122]  ? __lock_is_held+0xb5/0x140
[  230.784203]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.789757]  ? check_preemption_disabled+0x48/0x280
[  230.794784]  run_timer_softirq+0x52/0xb0
[  230.798847]  ? rcu_read_lock_sched_held+0x14f/0x180
[  230.803866]  __do_softirq+0x308/0xb7e
[  230.807675]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  230.812168]  ? lock_downgrade+0x900/0x900
[  230.816337]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  230.821451]  ? pvclock_read_flags+0x160/0x160
[  230.825982]  ? lapic_next_event+0x5a/0x90
[  230.830137]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.835679]  ? kvm_clock_read+0x18/0x30
[  230.839675]  ? kvm_sched_clock_read+0x9/0x20
[  230.844090]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.849628]  ? check_preemption_disabled+0x48/0x280
[  230.854656]  irq_exit+0x17f/0x1c0
[  230.858145]  smp_apic_timer_interrupt+0x1cb/0x760
[  230.862989]  ? smp_reschedule_interrupt+0x109/0x650
[  230.868007]  ? smp_call_function_single_interrupt+0x650/0x650
[  230.873894]  ? interrupt_entry+0xb5/0xc0
[  230.877958]  ? trace_hardirqs_off_caller+0xbb/0x310
[  230.882978]  ? trace_hardirqs_off_caller+0xbb/0x310
[  230.887996]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.892840]  ? trace_hardirqs_on_caller+0x310/0x310
[  230.897856]  ? trace_hardirqs_on_caller+0x310/0x310
[  230.902877]  ? task_prio+0x50/0x50
[  230.906434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  230.911977]  ? check_preemption_disabled+0x48/0x280
[  230.917004]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  230.921854]  apic_timer_interrupt+0xf/0x20
[  230.926083]  </IRQ>
[  230.928330] RIP: 0010:check_memory_region+0x121/0x1b0
[  230.933526] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  230.952931] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  230.960641] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  230.967910] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  230.975178] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  230.982446] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  230.989718] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  230.997017]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.002306]  kasan_check_read+0x11/0x20
[  231.006281]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.011385]  ? rcu_softirq_qs+0x20/0x20
[  231.015373]  rcu_is_watching+0x10/0x30
[  231.019297]  list_lru_count_one+0x362/0x450
[  231.023640]  ? list_lru_isolate_move+0x3c0/0x3c0
[  231.028430]  ? shmem_free_inode+0xd0/0xd0
[  231.032583]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.038125]  ? ubifs_shrink_count+0xc4/0x100
[  231.042557]  super_cache_count+0x153/0x2e0
[  231.046803]  do_shrink_slab+0x1b1/0xd30
[  231.050788]  ? lock_acquire+0x1ed/0x520
[  231.054767]  ? snapshot_refaults+0x290/0x290
[  231.059182]  ? lock_release+0xa00/0xa00
[  231.063162]  ? perf_trace_sched_process_exec+0x860/0x860
[  231.068640]  ? down_read_trylock+0xda/0x140
[  231.072958]  ? shrink_slab+0x207/0x8c0
[  231.076849]  ? downgrade_write+0x270/0x270
[  231.081096]  shrink_slab+0x389/0x8c0
[  231.084816]  ? shrink_active_list+0x1f00/0x1f00
[  231.089497]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  231.095130]  ? kasan_check_read+0x11/0x20
[  231.099295]  ? do_raw_spin_unlock+0xa7/0x330
[  231.103709]  ? ___preempt_schedule+0x16/0x18
[  231.108139]  ? _raw_spin_unlock+0x3f/0x50
[  231.112295]  shrink_node+0x431/0x16b0
[  231.116099]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  231.121400]  ? shrink_node_memcg+0x18f0/0x18f0
[  231.125984]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  231.130570]  ? trace_hardirqs_on+0xbd/0x310
[  231.134894]  ? vmpressure+0x271/0x340
[  231.138703]  ? do_raw_spin_trylock+0x270/0x270
[  231.143299]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  231.148837]  ? __cpuset_node_allowed+0x19b/0x660
[  231.153600]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  231.159315]  ? vmpressure+0x1a2/0x340
[  231.163130]  do_try_to_free_pages+0x3e7/0x1290
[  231.167716]  ? zap_class+0x640/0x640
[  231.171456]  ? shrink_node+0x16b0/0x16b0
[  231.175525]  ? __lock_is_held+0xb5/0x140
[  231.179605]  try_to_free_pages+0x4d0/0xb90
[  231.183848]  ? do_try_to_free_pages+0x1290/0x1290
[  231.188702]  ? lock_acquire+0x1ed/0x520
[  231.192686]  ? set_page_refcounted+0x280/0x280
[  231.197277]  ? lock_release+0xa00/0xa00
[  231.201261]  ? _raw_spin_unlock_irq+0x60/0x80
[  231.205761]  ? psi_memstall_enter+0x240/0x2b0
[  231.210263]  ? psi_memstall_tick+0x230/0x230
[  231.214685]  __alloc_pages_slowpath+0xa14/0x2e10
[  231.219475]  ? warn_alloc+0x120/0x120
[  231.223275]  ? mark_held_locks+0x130/0x130
[  231.227515]  ? find_get_entry+0xaae/0x1120
[  231.231771]  ? filemap_map_pages+0x1a20/0x1a20
[  231.236360]  ? zap_class+0x640/0x640
[  231.240089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  231.245627]  ? check_preemption_disabled+0x48/0x280
[  231.250644]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.256201]  ? should_fail+0x22d/0xd01
[  231.260128]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  231.265242]  ? zap_class+0x640/0x640
[  231.268982]  ? __lock_is_held+0xb5/0x140
[  231.273051]  ? mark_held_locks+0x130/0x130
[  231.277293]  ? lock_release+0xa00/0xa00
[  231.281274]  ? perf_trace_sched_process_exec+0x860/0x860
[  231.286733]  ? xa_load+0x2ba/0x460
[  231.290276]  ? lock_downgrade+0x900/0x900
[  231.294448]  ? __might_sleep+0x95/0x190
[  231.298428]  __alloc_pages_nodemask+0xa80/0xde0
[  231.303123]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  231.308158]  ? __page_cache_alloc+0x191/0x5c0
[  231.312655]  ? xa_load+0x2e1/0x460
[  231.316196]  ? xa_clear_mark+0x40/0x40
[  231.320090]  ? zap_class+0x640/0x640
[  231.323814]  ? zap_class+0x640/0x640
[  231.327533]  ? zap_class+0x640/0x640
[  231.331256]  ? __do_page_cache_readahead+0x663/0x810
[  231.336370]  ? find_held_lock+0x36/0x1c0
[  231.340437]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  231.345984]  alloc_pages_current+0x173/0x350
[  231.350402]  __page_cache_alloc+0x38c/0x5c0
[  231.354723]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  231.359666]  ? kasan_check_read+0x11/0x20
[  231.363816]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.369100]  ? generic_perform_write+0x6a0/0x6a0
[  231.373859]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.379400]  ? check_preemption_disabled+0x48/0x280
[  231.384424]  filemap_fault+0x1595/0x25f0
[  231.388500]  ? __lock_page_or_retry+0xa00/0xa00
[  231.393172]  ? mark_held_locks+0x130/0x130
[  231.397419]  ? filemap_map_pages+0xd6b/0x1a20
[  231.401919]  ? lock_downgrade+0x900/0x900
[  231.406067]  ? check_preemption_disabled+0x48/0x280
[  231.411091]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  231.416024]  ? kasan_check_read+0x11/0x20
[  231.420172]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.425450]  ? rcu_softirq_qs+0x20/0x20
[  231.429438]  ? filemap_map_pages+0xd92/0x1a20
[  231.433949]  ? find_get_entries_tag+0x1400/0x1400
[  231.438791]  ? find_held_lock+0x36/0x1c0
[  231.442877]  ? lock_acquire+0x1ed/0x520
[  231.446859]  ? ext4_filemap_fault+0x7a/0xad
[  231.451195]  ? lock_release+0xa00/0xa00
[  231.455171]  ? perf_trace_sched_process_exec+0x860/0x860
[  231.460624]  ? print_usage_bug+0xc0/0xc0
[  231.464704]  ? down_read+0x8d/0x120
[  231.468344]  ? ext4_filemap_fault+0x7a/0xad
[  231.472668]  ? __down_interruptible+0x700/0x700
[  231.477343]  ? find_held_lock+0x36/0x1c0
[  231.481408]  ext4_filemap_fault+0x82/0xad
[  231.485560]  __do_fault+0x100/0x6b0
[  231.489194]  ? lock_downgrade+0x900/0x900
[  231.493347]  ? pmd_devmap_trans_unstable+0x220/0x220
[  231.498476]  ? kasan_check_read+0x11/0x20
[  231.502623]  ? do_raw_spin_unlock+0xa7/0x330
[  231.507032]  ? do_raw_spin_trylock+0x270/0x270
[  231.511632]  __handle_mm_fault+0x3ea0/0x5be0
[  231.516051]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  231.520905]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  231.525501]  ? zap_class+0x640/0x640
[  231.529217]  ? zap_class+0x640/0x640
[  231.532938]  ? __x64_sys_futex+0x53e/0x6a0
[  231.537179]  ? find_held_lock+0x36/0x1c0
[  231.541255]  ? handle_mm_fault+0x42a/0xc70
[  231.545497]  ? lock_downgrade+0x900/0x900
[  231.549651]  ? check_preemption_disabled+0x48/0x280
[  231.554672]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  231.559604]  ? kasan_check_read+0x11/0x20
[  231.563771]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  231.569053]  ? rcu_softirq_qs+0x20/0x20
[  231.573029]  ? trace_hardirqs_off_caller+0x310/0x310
[  231.578137]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  231.583675]  ? check_preemption_disabled+0x48/0x280
[  231.588702]  handle_mm_fault+0x54f/0xc70
[  231.592777]  ? __handle_mm_fault+0x5be0/0x5be0
[  231.597365]  ? find_vma+0x34/0x190
[  231.600912]  __do_page_fault+0x5e8/0xe60
[  231.604973]  ? trace_hardirqs_off+0xb8/0x310
[  231.609392]  do_page_fault+0xf2/0x7e0
[  231.613193]  ? vmalloc_sync_all+0x30/0x30
[  231.617343]  ? error_entry+0x70/0xd0
[  231.621065]  ? trace_hardirqs_off_caller+0xbb/0x310
[  231.626085]  ? trace_hardirqs_on_caller+0xc0/0x310
[  231.631021]  ? syscall_return_slowpath+0x5e0/0x5e0
[  231.635952]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  231.640799]  ? trace_hardirqs_on_caller+0x310/0x310
[  231.645826]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  231.651285]  ? prepare_exit_to_usermode+0x291/0x3b0
[  231.656301]  ? page_fault+0x8/0x30
[  231.659849]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  231.664699]  ? page_fault+0x8/0x30
[  231.668261]  page_fault+0x1e/0x30
[  231.671716] RIP: 0033:0x404068
[  231.674936] Code: Bad RIP value.
[  231.678299] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  231.683662] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  231.690932] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  231.698203] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  231.705475] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  231.712751] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  231.720043] warn_alloc_show_mem: 1 callbacks suppressed
[  231.720055] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  231.720057] Mem-Info:
[  231.720088] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  231.720088]  active_file:13 inactive_file:28 isolated_file:0
[  231.720088]  unevictable:0 dirty:1 writeback:0 unstable:0
[  231.720088]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  231.720088]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  231.720088]  free:13541 free_pcp:161 free_cma:0
[  231.725432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  231.732715] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  231.735114] Call Trace:
[  231.768157] 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
[  231.777506]  <IRQ>
[  231.805426] lowmem_reserve[]: 0 2818 6321 6321
[  231.808013]  dump_stack+0x244/0x39d
[  231.834343] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  231.836497]  ? dump_stack_print_info.cold.1+0x20/0x20
[  231.841053] lowmem_reserve[]: 0 0 3503 3503
[  231.844681]  warn_alloc.cold.116+0xb7/0x1bd
[  231.872232] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  231.877429]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  231.881722] lowmem_reserve[]: 0 0 0 0
[  231.886056]  ? lock_downgrade+0x900/0x900
[  231.915181] 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
[  231.920025]  ? trace_hardirqs_off+0xb8/0x310
[  231.923797] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  231.927953]  ? trace_hardirqs_off+0xb8/0x310
[  231.941452] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  231.945865]  __alloc_pages_slowpath+0x26e8/0x2e10
[  231.961011] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  231.965432]  ? warn_alloc+0x120/0x120
[  231.979867] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  231.979876] 4984 total pagecache pages
[  231.984722]  ? print_usage_bug+0xc0/0xc0
[  231.993545] 0 pages in swap cache
[  231.997336]  ? warn_alloc+0x120/0x120
[  232.005890] Swap cache stats: add 0, delete 0, find 0/0
[  232.009771]  ? warn_alloc+0x120/0x120
[  232.013810] Free swap  = 0kB
[  232.017273]  ? print_usage_bug+0xc0/0xc0
[  232.021063] Total swap = 0kB
[  232.026418]  ? print_usage_bug+0xc0/0xc0
[  232.030193] 1965979 pages RAM
[  232.033208]  ? __lock_acquire+0x62f/0x4c20
[  232.037242] 0 pages HighMem/MovableOnly
[  232.037254] 342853 pages reserved
[  232.040266]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.044302] 0 pages cma reserved
[  232.047404]  ? should_fail+0x22d/0xd01
[  232.051681] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  232.055602]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  232.059097] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  232.064568]  ? __lock_acquire+0x62f/0x4c20
[  232.067933] syz-fuzzer cpuset=/ mems_allowed=0
[  232.071823]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  232.107459]  ? __lock_acquire+0x62f/0x4c20
[  232.111696]  ? should_fail+0x22d/0xd01
[  232.115593]  ? find_held_lock+0x36/0x1c0
[  232.119669]  ? mark_held_locks+0x130/0x130
[  232.123910]  ? mark_held_locks+0x130/0x130
[  232.128142]  ? zap_class+0x640/0x640
[  232.131856]  ? zap_class+0x640/0x640
[  232.135571]  ? print_usage_bug+0xc0/0xc0
[  232.139631]  ? do_raw_spin_unlock+0xa7/0x330
[  232.144043]  ? zap_class+0x640/0x640
[  232.147768]  ? print_usage_bug+0xc0/0xc0
[  232.151833]  ? wq_watchdog_touch+0x9c/0xfe
[  232.156077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.161618]  ? check_preemption_disabled+0x48/0x280
[  232.166660]  ? __lock_is_held+0xb5/0x140
[  232.170742]  __alloc_pages_nodemask+0xa80/0xde0
[  232.175418]  ? zap_class+0x640/0x640
[  232.179139]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  232.184171]  ? find_held_lock+0x36/0x1c0
[  232.188241]  ? ____cache_alloc_node+0x1c7/0x1e0
[  232.192917]  ? lock_downgrade+0x900/0x900
[  232.197076]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.202618]  cache_grow_begin+0xa5/0x8c0
[  232.206681]  ? do_raw_spin_unlock+0xa7/0x330
[  232.211098]  fallback_alloc+0x204/0x2e0
[  232.215079]  ____cache_alloc_node+0x1c7/0x1e0
[  232.219582]  kmem_cache_alloc_node+0xe3/0x730
[  232.224083]  ? ipv6_get_ifaddr+0x42e/0x620
[  232.228345]  __alloc_skb+0x119/0x770
[  232.232062]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.237343]  ? netdev_alloc_frag+0x1f0/0x1f0
[  232.241768]  ? lock_downgrade+0x900/0x900
[  232.245924]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.251466]  ? refcount_sub_and_test_checked+0x203/0x310
[  232.256924]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  232.262377]  ? addrconf_rs_timer+0x690/0x690
[  232.266798]  ndisc_alloc_skb+0x144/0x340
[  232.270865]  ndisc_send_rs+0x331/0x6e0
[  232.274767]  addrconf_rs_timer+0x314/0x690
[  232.279008]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.283255]  call_timer_fn+0x272/0x920
[  232.287147]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.291382]  ? process_timeout+0x40/0x40
[  232.295455]  ? __run_timers+0x7da/0xc70
[  232.299432]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.303931]  ? _raw_spin_unlock_irq+0x27/0x80
[  232.308425]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.312660]  ? lockdep_hardirqs_on+0x296/0x5b0
[  232.317258]  ? trace_hardirqs_on+0xbd/0x310
[  232.321586]  ? kasan_check_read+0x11/0x20
[  232.325745]  ? __run_timers+0x7da/0xc70
[  232.329723]  ? trace_hardirqs_off_caller+0x310/0x310
[  232.334862]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.339104]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  232.343340]  __run_timers+0x7e5/0xc70
[  232.347154]  ? timer_fixup_init+0x70/0x70
[  232.351305]  ? kasan_check_read+0x11/0x20
[  232.355454]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.360746]  ? rcu_softirq_qs+0x20/0x20
[  232.364733]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.370279]  ? check_preemption_disabled+0x48/0x280
[  232.375308]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  232.380074]  ? retint_kernel+0x2d/0x2d
[  232.383965]  ? trace_hardirqs_on_caller+0xc0/0x310
[  232.388900]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  232.393657]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  232.399140]  ? zap_class+0x640/0x640
[  232.402874]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.408416]  ? check_preemption_disabled+0x48/0x280
[  232.413447]  ? __lock_is_held+0xb5/0x140
[  232.417509]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.423047]  ? check_preemption_disabled+0x48/0x280
[  232.428074]  run_timer_softirq+0x52/0xb0
[  232.432141]  ? rcu_read_lock_sched_held+0x14f/0x180
[  232.437186]  __do_softirq+0x308/0xb7e
[  232.440990]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  232.445486]  ? lock_downgrade+0x900/0x900
[  232.449640]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  232.454764]  ? pvclock_read_flags+0x160/0x160
[  232.459266]  ? lapic_next_event+0x5a/0x90
[  232.463425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.468973]  ? kvm_clock_read+0x18/0x30
[  232.472949]  ? kvm_sched_clock_read+0x9/0x20
[  232.477365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.482907]  ? check_preemption_disabled+0x48/0x280
[  232.487935]  irq_exit+0x17f/0x1c0
[  232.491394]  smp_apic_timer_interrupt+0x1cb/0x760
[  232.496237]  ? smp_reschedule_interrupt+0x109/0x650
[  232.501261]  ? smp_call_function_single_interrupt+0x650/0x650
[  232.507144]  ? interrupt_entry+0xb5/0xc0
[  232.511209]  ? trace_hardirqs_off_caller+0xbb/0x310
[  232.516227]  ? trace_hardirqs_off_caller+0xbb/0x310
[  232.521251]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  232.526101]  ? trace_hardirqs_on_caller+0x310/0x310
[  232.531118]  ? trace_hardirqs_on_caller+0x310/0x310
[  232.536138]  ? task_prio+0x50/0x50
[  232.539683]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.545224]  ? check_preemption_disabled+0x48/0x280
[  232.550252]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  232.555110]  apic_timer_interrupt+0xf/0x20
[  232.559344]  </IRQ>
[  232.561590] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  232.566527] 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
[  232.585428] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  232.593149] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  232.600419] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  232.607687] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  232.614957] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  232.622227] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  232.629555]  skb_clone+0x1bb/0x500
[  232.633104]  ? skb_split+0x11e0/0x11e0
[  232.636998]  ? preempt_notifier_register+0x200/0x200
[  232.642101]  ? __switch_to_asm+0x34/0x70
[  232.646164]  ? __switch_to_asm+0x34/0x70
[  232.650227]  ? __switch_to_asm+0x40/0x70
[  232.654290]  ? __switch_to_asm+0x34/0x70
[  232.658351]  ? __switch_to_asm+0x40/0x70
[  232.662414]  ? __switch_to_asm+0x40/0x70
[  232.666474]  ? __switch_to_asm+0x34/0x70
[  232.670535]  ? __switch_to_asm+0x34/0x70
[  232.674768]  ? __switch_to_asm+0x40/0x70
[  232.678830]  ? __switch_to_asm+0x34/0x70
[  232.682896]  bpf_clone_redirect+0xb9/0x490
[  232.687141]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  232.692160]  ? __sched_text_start+0x8/0x8
[  232.696314]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  232.701077]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  232.705842]  ? find_held_lock+0x36/0x1c0
[  232.709914]  ? lock_acquire+0x1ed/0x520
[  232.713889]  ? bpf_test_run+0x3cb/0x780
[  232.717870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  232.723417]  ? check_preemption_disabled+0x48/0x280
[  232.728443]  ? kasan_check_read+0x11/0x20
[  232.732592]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  232.737871]  ? rcu_softirq_qs+0x20/0x20
[  232.741857]  ? preempt_schedule+0x4d/0x60
[  232.746014]  ? ___preempt_schedule+0x16/0x18
[  232.750431]  ? bpf_test_run+0x25d/0x780
[  232.754418]  ? netlink_diag_dump+0x2a0/0x2a0
[  232.758835]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.764390]  ? bpf_test_init.isra.10+0x70/0x100
[  232.769085]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  232.773859]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  232.778703]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  232.784270]  ? fput+0x130/0x1a0
[  232.787553]  ? __bpf_prog_get+0x9b/0x290
[  232.791638]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  232.796479]  ? bpf_prog_test_run+0x130/0x1a0
[  232.800890]  ? __x64_sys_bpf+0x3d8/0x520
[  232.804953]  ? bpf_prog_get+0x20/0x20
[  232.808782]  ? do_syscall_64+0x1b9/0x820
[  232.812845]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  232.818211]  ? syscall_return_slowpath+0x5e0/0x5e0
[  232.823147]  ? trace_hardirqs_on_caller+0x310/0x310
[  232.828166]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  232.833185]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  232.839850]  ? __switch_to_asm+0x40/0x70
[  232.843911]  ? __switch_to_asm+0x34/0x70
[  232.847978]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  232.852833]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  232.858215] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  232.858307] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  232.865146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  232.865152] Call Trace:
[  232.865158]  <IRQ>
[  232.865175]  dump_stack+0x244/0x39d
[  232.865194]  ? dump_stack_print_info.cold.1+0x20/0x20
[  232.871772] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  232.881031]  warn_alloc.cold.116+0xb7/0x1bd
[  232.883588] syz-executor4 cpuset=syz4 mems_allowed=0
[  232.885741]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  232.919223]  ? lock_downgrade+0x900/0x900
[  232.923387]  ? trace_hardirqs_off+0xb8/0x310
[  232.927804]  ? trace_hardirqs_off+0xb8/0x310
[  232.932229]  __alloc_pages_slowpath+0x26e8/0x2e10
[  232.937109]  ? warn_alloc+0x120/0x120
[  232.940913]  ? print_usage_bug+0xc0/0xc0
[  232.945490]  ? warn_alloc+0x120/0x120
[  232.949298]  ? warn_alloc+0x120/0x120
[  232.953101]  ? print_usage_bug+0xc0/0xc0
[  232.957173]  ? print_usage_bug+0xc0/0xc0
[  232.961242]  ? __lock_acquire+0x62f/0x4c20
[  232.965503]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  232.971057]  ? should_fail+0x22d/0xd01
[  232.974952]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  232.980061]  ? __lock_acquire+0x62f/0x4c20
[  232.984303]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  232.989407]  ? __lock_acquire+0x62f/0x4c20
[  232.993640]  ? should_fail+0x22d/0xd01
[  232.997527]  ? find_held_lock+0x36/0x1c0
[  233.001598]  ? mark_held_locks+0x130/0x130
[  233.005840]  ? mark_held_locks+0x130/0x130
[  233.010075]  ? zap_class+0x640/0x640
[  233.013812]  ? zap_class+0x640/0x640
[  233.017531]  ? print_usage_bug+0xc0/0xc0
[  233.021606]  ? do_raw_spin_unlock+0xa7/0x330
[  233.026020]  ? zap_class+0x640/0x640
[  233.029746]  ? print_usage_bug+0xc0/0xc0
[  233.033814]  ? wq_watchdog_touch+0x9c/0xfe
[  233.038054]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.043593]  ? check_preemption_disabled+0x48/0x280
[  233.048621]  ? __lock_is_held+0xb5/0x140
[  233.052690]  __alloc_pages_nodemask+0xa80/0xde0
[  233.057360]  ? zap_class+0x640/0x640
[  233.061079]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  233.066107]  ? find_held_lock+0x36/0x1c0
[  233.070180]  ? ____cache_alloc_node+0x1c7/0x1e0
[  233.074853]  ? lock_downgrade+0x900/0x900
[  233.079013]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.084560]  cache_grow_begin+0xa5/0x8c0
[  233.088622]  ? do_raw_spin_unlock+0xa7/0x330
[  233.093041]  fallback_alloc+0x204/0x2e0
[  233.097023]  ____cache_alloc_node+0x1c7/0x1e0
[  233.101528]  kmem_cache_alloc_node+0xe3/0x730
[  233.106025]  ? ipv6_get_ifaddr+0x42e/0x620
[  233.110289]  __alloc_skb+0x119/0x770
[  233.114019]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.119304]  ? netdev_alloc_frag+0x1f0/0x1f0
[  233.123716]  ? lock_downgrade+0x900/0x900
[  233.127886]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.133428]  ? refcount_sub_and_test_checked+0x203/0x310
[  233.138883]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  233.144340]  ? addrconf_rs_timer+0x690/0x690
[  233.148773]  ndisc_alloc_skb+0x144/0x340
[  233.152841]  ndisc_send_rs+0x331/0x6e0
[  233.156742]  addrconf_rs_timer+0x314/0x690
[  233.160987]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.165277]  call_timer_fn+0x272/0x920
[  233.169200]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.173440]  ? process_timeout+0x40/0x40
[  233.177522]  ? mark_held_locks+0xc7/0x130
[  233.181673]  ? _raw_spin_unlock_irq+0x27/0x80
[  233.186169]  ? _raw_spin_unlock_irq+0x27/0x80
[  233.190687]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.194950]  ? lockdep_hardirqs_on+0x296/0x5b0
[  233.199539]  ? trace_hardirqs_on+0xbd/0x310
[  233.203868]  ? kasan_check_read+0x11/0x20
[  233.208019]  ? __run_timers+0x7da/0xc70
[  233.212007]  ? trace_hardirqs_off_caller+0x310/0x310
[  233.217115]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.221355]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  233.225589]  __run_timers+0x7e5/0xc70
[  233.229402]  ? timer_fixup_init+0x70/0x70
[  233.233553]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  233.238579]  ? zap_class+0x640/0x640
[  233.242299]  ? print_usage_bug+0xc0/0xc0
[  233.246367]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  233.251565]  ? find_held_lock+0x36/0x1c0
[  233.255637]  ? zap_class+0x640/0x640
[  233.259359]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.264899]  ? check_preemption_disabled+0x48/0x280
[  233.269930]  ? __lock_is_held+0xb5/0x140
[  233.273994]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.279534]  ? check_preemption_disabled+0x48/0x280
[  233.284555]  run_timer_softirq+0x52/0xb0
[  233.288618]  ? rcu_read_lock_sched_held+0x14f/0x180
[  233.293639]  __do_softirq+0x308/0xb7e
[  233.297447]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  233.301947]  ? lock_downgrade+0x900/0x900
[  233.306099]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  233.311212]  ? pvclock_read_flags+0x160/0x160
[  233.315717]  ? lapic_next_event+0x5a/0x90
[  233.319883]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.325430]  ? kvm_clock_read+0x18/0x30
[  233.329441]  ? kvm_sched_clock_read+0x9/0x20
[  233.333855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.339395]  ? check_preemption_disabled+0x48/0x280
[  233.344424]  irq_exit+0x17f/0x1c0
[  233.347885]  smp_apic_timer_interrupt+0x1cb/0x760
[  233.352738]  ? smp_reschedule_interrupt+0x109/0x650
[  233.357771]  ? smp_call_function_single_interrupt+0x650/0x650
[  233.363654]  ? interrupt_entry+0xb5/0xc0
[  233.367734]  ? trace_hardirqs_off_caller+0xbb/0x310
[  233.372786]  ? trace_hardirqs_off_caller+0xbb/0x310
[  233.377808]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  233.382654]  ? trace_hardirqs_on_caller+0x310/0x310
[  233.387673]  ? trace_hardirqs_on_caller+0x310/0x310
[  233.392693]  ? task_prio+0x50/0x50
[  233.396256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.401815]  ? check_preemption_disabled+0x48/0x280
[  233.406839]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  233.411695]  apic_timer_interrupt+0xf/0x20
[  233.415929]  </IRQ>
[  233.418176] RIP: 0010:check_memory_region+0x121/0x1b0
[  233.423373] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  233.442279] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  233.449990] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  233.457261] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  233.464542] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  233.471816] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  233.479083] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  233.486376]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.491670]  kasan_check_read+0x11/0x20
[  233.495644]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.500755]  ? rcu_softirq_qs+0x20/0x20
[  233.504748]  rcu_is_watching+0x10/0x30
[  233.508638]  list_lru_count_one+0x362/0x450
[  233.512966]  ? list_lru_isolate_move+0x3c0/0x3c0
[  233.517722]  ? shmem_free_inode+0xd0/0xd0
[  233.521885]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  233.527425]  ? ubifs_shrink_count+0xc4/0x100
[  233.531848]  super_cache_count+0x153/0x2e0
[  233.536089]  do_shrink_slab+0x1b1/0xd30
[  233.540073]  ? lock_acquire+0x1ed/0x520
[  233.544056]  ? snapshot_refaults+0x290/0x290
[  233.548472]  ? lock_release+0xa00/0xa00
[  233.552460]  ? perf_trace_sched_process_exec+0x860/0x860
[  233.557926]  ? down_read_trylock+0xda/0x140
[  233.562250]  ? shrink_slab+0x207/0x8c0
[  233.566144]  ? downgrade_write+0x270/0x270
[  233.570391]  shrink_slab+0x389/0x8c0
[  233.574283]  ? shrink_active_list+0x1f00/0x1f00
[  233.578965]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  233.584598]  ? kasan_check_read+0x11/0x20
[  233.588756]  ? do_raw_spin_unlock+0xa7/0x330
[  233.593174]  ? ___preempt_schedule+0x16/0x18
[  233.597594]  ? _raw_spin_unlock+0x3f/0x50
[  233.601758]  shrink_node+0x431/0x16b0
[  233.605574]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  233.610881]  ? shrink_node_memcg+0x18f0/0x18f0
[  233.615465]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  233.620051]  ? trace_hardirqs_on+0xbd/0x310
[  233.624377]  ? vmpressure+0x271/0x340
[  233.628188]  ? do_raw_spin_trylock+0x270/0x270
[  233.632781]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  233.638322]  ? __cpuset_node_allowed+0x19b/0x660
[  233.643084]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  233.648802]  ? vmpressure+0x1a2/0x340
[  233.652618]  do_try_to_free_pages+0x3e7/0x1290
[  233.657201]  ? zap_class+0x640/0x640
[  233.660939]  ? shrink_node+0x16b0/0x16b0
[  233.665008]  ? __lock_is_held+0xb5/0x140
[  233.669088]  try_to_free_pages+0x4d0/0xb90
[  233.673331]  ? do_try_to_free_pages+0x1290/0x1290
[  233.678193]  ? lock_acquire+0x1ed/0x520
[  233.682167]  ? set_page_refcounted+0x280/0x280
[  233.686765]  ? lock_release+0xa00/0xa00
[  233.690748]  ? _raw_spin_unlock_irq+0x60/0x80
[  233.695260]  ? psi_memstall_enter+0x240/0x2b0
[  233.699764]  ? psi_memstall_tick+0x230/0x230
[  233.704186]  __alloc_pages_slowpath+0xa14/0x2e10
[  233.708972]  ? warn_alloc+0x120/0x120
[  233.712775]  ? mark_held_locks+0x130/0x130
[  233.717017]  ? find_get_entry+0xaae/0x1120
[  233.721278]  ? filemap_map_pages+0x1a20/0x1a20
[  233.725872]  ? zap_class+0x640/0x640
[  233.729594]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  233.735136]  ? check_preemption_disabled+0x48/0x280
[  233.740159]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  233.745697]  ? should_fail+0x22d/0xd01
[  233.749596]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  233.754700]  ? zap_class+0x640/0x640
[  233.758477]  ? __lock_is_held+0xb5/0x140
[  233.762543]  ? mark_held_locks+0x130/0x130
[  233.766781]  ? lock_release+0xa00/0xa00
[  233.770762]  ? perf_trace_sched_process_exec+0x860/0x860
[  233.776213]  ? xa_load+0x2ba/0x460
[  233.779768]  ? lock_downgrade+0x900/0x900
[  233.783927]  ? __might_sleep+0x95/0x190
[  233.787907]  __alloc_pages_nodemask+0xa80/0xde0
[  233.792587]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  233.797621]  ? __page_cache_alloc+0x191/0x5c0
[  233.802117]  ? xa_load+0x2e1/0x460
[  233.805660]  ? xa_clear_mark+0x40/0x40
[  233.809552]  ? zap_class+0x640/0x640
[  233.813460]  ? zap_class+0x640/0x640
[  233.817167]  ? zap_class+0x640/0x640
[  233.820882]  ? __do_page_cache_readahead+0x663/0x810
[  233.825996]  ? find_held_lock+0x36/0x1c0
[  233.830063]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  233.835608]  alloc_pages_current+0x173/0x350
[  233.840024]  __page_cache_alloc+0x38c/0x5c0
[  233.844347]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  233.849293]  ? kasan_check_read+0x11/0x20
[  233.853460]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.858747]  ? generic_perform_write+0x6a0/0x6a0
[  233.863507]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  233.869052]  ? check_preemption_disabled+0x48/0x280
[  233.874080]  filemap_fault+0x1595/0x25f0
[  233.878170]  ? __lock_page_or_retry+0xa00/0xa00
[  233.882853]  ? mark_held_locks+0x130/0x130
[  233.887097]  ? filemap_map_pages+0xd6b/0x1a20
[  233.891596]  ? lock_downgrade+0x900/0x900
[  233.895754]  ? check_preemption_disabled+0x48/0x280
[  233.900779]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  233.905711]  ? kasan_check_read+0x11/0x20
[  233.909920]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  233.915201]  ? rcu_softirq_qs+0x20/0x20
[  233.919191]  ? filemap_map_pages+0xd92/0x1a20
[  233.923703]  ? find_get_entries_tag+0x1400/0x1400
[  233.928550]  ? find_held_lock+0x36/0x1c0
[  233.932630]  ? lock_acquire+0x1ed/0x520
[  233.936605]  ? ext4_filemap_fault+0x7a/0xad
[  233.940985]  ? lock_release+0xa00/0xa00
[  233.944968]  ? perf_trace_sched_process_exec+0x860/0x860
[  233.950424]  ? print_usage_bug+0xc0/0xc0
[  233.954523]  ? down_read+0x8d/0x120
[  233.958149]  ? ext4_filemap_fault+0x7a/0xad
[  233.962479]  ? __down_interruptible+0x700/0x700
[  233.967152]  ? find_held_lock+0x36/0x1c0
[  233.971219]  ext4_filemap_fault+0x82/0xad
[  233.975375]  __do_fault+0x100/0x6b0
[  233.979012]  ? lock_downgrade+0x900/0x900
[  233.983166]  ? pmd_devmap_trans_unstable+0x220/0x220
[  233.988283]  ? kasan_check_read+0x11/0x20
[  233.992430]  ? do_raw_spin_unlock+0xa7/0x330
[  233.996842]  ? do_raw_spin_trylock+0x270/0x270
[  234.001441]  __handle_mm_fault+0x3ea0/0x5be0
[  234.005860]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  234.010716]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  234.015324]  ? zap_class+0x640/0x640
[  234.019042]  ? zap_class+0x640/0x640
[  234.022759]  ? __x64_sys_futex+0x53e/0x6a0
[  234.027002]  ? find_held_lock+0x36/0x1c0
[  234.031076]  ? handle_mm_fault+0x42a/0xc70
[  234.035314]  ? lock_downgrade+0x900/0x900
[  234.039463]  ? check_preemption_disabled+0x48/0x280
[  234.044482]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  234.049415]  ? kasan_check_read+0x11/0x20
[  234.053568]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.058845]  ? rcu_softirq_qs+0x20/0x20
[  234.062823]  ? trace_hardirqs_off_caller+0x310/0x310
[  234.067931]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.073472]  ? check_preemption_disabled+0x48/0x280
[  234.078515]  handle_mm_fault+0x54f/0xc70
[  234.082581]  ? __handle_mm_fault+0x5be0/0x5be0
[  234.087174]  ? find_vma+0x34/0x190
[  234.090720]  __do_page_fault+0x5e8/0xe60
[  234.094793]  ? trace_hardirqs_off+0xb8/0x310
[  234.099215]  do_page_fault+0xf2/0x7e0
[  234.103022]  ? vmalloc_sync_all+0x30/0x30
[  234.107173]  ? error_entry+0x70/0xd0
[  234.110893]  ? trace_hardirqs_off_caller+0xbb/0x310
[  234.115909]  ? trace_hardirqs_on_caller+0xc0/0x310
[  234.120848]  ? syscall_return_slowpath+0x5e0/0x5e0
[  234.125781]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  234.130629]  ? trace_hardirqs_on_caller+0x310/0x310
[  234.135650]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  234.141110]  ? prepare_exit_to_usermode+0x291/0x3b0
[  234.146131]  ? page_fault+0x8/0x30
[  234.149677]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  234.154523]  ? page_fault+0x8/0x30
[  234.158067]  page_fault+0x1e/0x30
[  234.161522] RIP: 0033:0x404068
[  234.164738] Code: Bad RIP value.
[  234.168102] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  234.173465] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  234.180737] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  234.188007] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  234.195275] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  234.202540] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  234.209837] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  234.209842] warn_alloc_show_mem: 1 callbacks suppressed
[  234.209850] Mem-Info:
[  234.217125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  234.222494] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  234.222494]  active_file:13 inactive_file:28 isolated_file:0
[  234.222494]  unevictable:0 dirty:1 writeback:0 unstable:0
[  234.222494]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  234.222494]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  234.222494]  free:13541 free_pcp:161 free_cma:0
[  234.224865] Call Trace:
[  234.234262] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  234.267273]  <IRQ>
[  234.269845] 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
[  234.297781]  dump_stack+0x244/0x39d
[  234.299903] lowmem_reserve[]: 0 2818 6321 6321
[  234.326009]  ? dump_stack_print_info.cold.1+0x20/0x20
[  234.329608] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  234.334197]  warn_alloc.cold.116+0xb7/0x1bd
[  234.339361] lowmem_reserve[]: 0 0 3503 3503
[  234.366945]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  234.371244] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  234.375562]  ? lock_downgrade+0x900/0x900
[  234.380376] lowmem_reserve[]: 0 0 0 0
[  234.409532]  ? trace_hardirqs_off+0xb8/0x310
[  234.413657] 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
[  234.417456]  ? trace_hardirqs_off+0xb8/0x310
[  234.421840] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  234.435361]  __alloc_pages_slowpath+0x26e8/0x2e10
[  234.439741] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  234.454960]  ? warn_alloc+0x120/0x120
[  234.459763] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  234.474232]  ? print_usage_bug+0xc0/0xc0
[  234.478018] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  234.486844]  ? warn_alloc+0x120/0x120
[  234.490879] 4984 total pagecache pages
[  234.499445]  ? warn_alloc+0x120/0x120
[  234.503232] 0 pages in swap cache
[  234.507109]  ? print_usage_bug+0xc0/0xc0
[  234.510888] Swap cache stats: add 0, delete 0, find 0/0
[  234.514331]  ? kvm_clock_read+0x18/0x30
[  234.518366] Free swap  = 0kB
[  234.523734]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  234.527680] Total swap = 0kB
[  234.530754]  ? print_usage_bug+0xc0/0xc0
[  234.535751] 1965979 pages RAM
[  234.538773]  ? __lock_acquire+0x62f/0x4c20
[  234.542814] 0 pages HighMem/MovableOnly
[  234.545921]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  234.550129] 342853 pages reserved
[  234.554107]  ? should_fail+0x22d/0xd01
[  234.559616] 0 pages cma reserved
[  234.563061]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.566985] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  234.570280]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  234.570297]  ? __lock_acquire+0x62f/0x4c20
[  234.570315]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  234.575631] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  234.582055]  ? __lock_acquire+0x62f/0x4c20
[  234.587136] syz-fuzzer cpuset=/ mems_allowed=0
[  234.591368]  ? should_fail+0x22d/0xd01
[  234.619315]  ? rcu_irq_exit+0x1a2/0x390
[  234.623304]  ? mark_held_locks+0x130/0x130
[  234.627543]  ? mark_held_locks+0x130/0x130
[  234.631787]  ? mark_held_locks+0xc7/0x130
[  234.635940]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  234.640957]  ? zap_class+0x640/0x640
[  234.644675]  ? print_usage_bug+0xc0/0xc0
[  234.648759]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.654300]  ? check_preemption_disabled+0x48/0x280
[  234.659327]  ? __lock_is_held+0xb5/0x140
[  234.663399]  __alloc_pages_nodemask+0xa80/0xde0
[  234.668069]  ? zap_class+0x640/0x640
[  234.671789]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  234.676822]  ? find_held_lock+0x36/0x1c0
[  234.680912]  ? ____cache_alloc_node+0x1c7/0x1e0
[  234.685586]  ? lock_downgrade+0x900/0x900
[  234.689762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.695311]  cache_grow_begin+0xa5/0x8c0
[  234.699377]  ? do_raw_spin_unlock+0xa7/0x330
[  234.703799]  fallback_alloc+0x204/0x2e0
[  234.707781]  ____cache_alloc_node+0x1c7/0x1e0
[  234.712290]  kmem_cache_alloc_node+0xe3/0x730
[  234.716789]  ? ipv6_get_ifaddr+0x42e/0x620
[  234.721039]  __alloc_skb+0x119/0x770
[  234.724764]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.730053]  ? netdev_alloc_frag+0x1f0/0x1f0
[  234.734464]  ? lock_downgrade+0x900/0x900
[  234.738624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.744162]  ? refcount_sub_and_test_checked+0x203/0x310
[  234.749618]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  234.755070]  ? addrconf_rs_timer+0x690/0x690
[  234.759492]  ndisc_alloc_skb+0x144/0x340
[  234.763563]  ndisc_send_rs+0x331/0x6e0
[  234.767456]  addrconf_rs_timer+0x314/0x690
[  234.771700]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.775961]  call_timer_fn+0x272/0x920
[  234.779849]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.784083]  ? process_timeout+0x40/0x40
[  234.788156]  ? __run_timers+0x7da/0xc70
[  234.792133]  ? _raw_spin_unlock_irq+0x27/0x80
[  234.796629]  ? _raw_spin_unlock_irq+0x27/0x80
[  234.801124]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.805367]  ? lockdep_hardirqs_on+0x296/0x5b0
[  234.809951]  ? trace_hardirqs_on+0xbd/0x310
[  234.814274]  ? kasan_check_read+0x11/0x20
[  234.818423]  ? __run_timers+0x7da/0xc70
[  234.822399]  ? trace_hardirqs_off_caller+0x310/0x310
[  234.827512]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.831764]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  234.835999]  __run_timers+0x7e5/0xc70
[  234.839810]  ? timer_fixup_init+0x70/0x70
[  234.843958]  ? kasan_check_read+0x11/0x20
[  234.848106]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  234.853386]  ? rcu_softirq_qs+0x20/0x20
[  234.857378]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.862920]  ? check_preemption_disabled+0x48/0x280
[  234.867947]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  234.872706]  ? retint_kernel+0x2d/0x2d
[  234.876609]  ? trace_hardirqs_on_caller+0xc0/0x310
[  234.881539]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  234.886297]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  234.891764]  ? zap_class+0x640/0x640
[  234.895491]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.901034]  ? check_preemption_disabled+0x48/0x280
[  234.906064]  ? __lock_is_held+0xb5/0x140
[  234.910132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.915673]  ? check_preemption_disabled+0x48/0x280
[  234.920695]  run_timer_softirq+0x52/0xb0
[  234.924790]  ? rcu_read_lock_sched_held+0x14f/0x180
[  234.929818]  __do_softirq+0x308/0xb7e
[  234.933627]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  234.938125]  ? lock_downgrade+0x900/0x900
[  234.942283]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  234.947515]  ? pvclock_read_flags+0x160/0x160
[  234.952021]  ? lapic_next_event+0x5a/0x90
[  234.956172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.961735]  ? kvm_clock_read+0x18/0x30
[  234.965718]  ? kvm_sched_clock_read+0x9/0x20
[  234.970148]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  234.975694]  ? check_preemption_disabled+0x48/0x280
[  234.980733]  irq_exit+0x17f/0x1c0
[  234.984198]  smp_apic_timer_interrupt+0x1cb/0x760
[  234.989044]  ? smp_reschedule_interrupt+0x109/0x650
[  234.994061]  ? smp_call_function_single_interrupt+0x650/0x650
[  234.999948]  ? interrupt_entry+0xb5/0xc0
[  235.004013]  ? trace_hardirqs_off_caller+0xbb/0x310
[  235.009030]  ? trace_hardirqs_off_caller+0xbb/0x310
[  235.014053]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.018900]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.023920]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.028936]  ? task_prio+0x50/0x50
[  235.032478]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  235.038017]  ? check_preemption_disabled+0x48/0x280
[  235.043041]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.047894]  apic_timer_interrupt+0xf/0x20
[  235.052123]  </IRQ>
[  235.054364] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  235.059294] 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
[  235.078195] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  235.085925] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  235.093196] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  235.100463] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  235.107736] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  235.115011] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  235.122317]  skb_clone+0x1bb/0x500
[  235.125863]  ? skb_split+0x11e0/0x11e0
[  235.129778]  ? preempt_notifier_register+0x200/0x200
[  235.134880]  ? __switch_to_asm+0x34/0x70
[  235.138944]  ? __switch_to_asm+0x34/0x70
[  235.143007]  ? __switch_to_asm+0x40/0x70
[  235.147065]  ? __switch_to_asm+0x34/0x70
[  235.151129]  ? __switch_to_asm+0x40/0x70
[  235.155193]  ? __switch_to_asm+0x40/0x70
[  235.159254]  ? __switch_to_asm+0x34/0x70
[  235.163317]  ? __switch_to_asm+0x34/0x70
[  235.167376]  ? __switch_to_asm+0x40/0x70
[  235.171434]  ? __switch_to_asm+0x34/0x70
[  235.175500]  bpf_clone_redirect+0xb9/0x490
[  235.179770]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  235.184798]  ? __sched_text_start+0x8/0x8
[  235.188953]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  235.193718]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  235.198492]  ? find_held_lock+0x36/0x1c0
[  235.202568]  ? lock_acquire+0x1ed/0x520
[  235.206551]  ? bpf_test_run+0x3cb/0x780
[  235.210528]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.216074]  ? check_preemption_disabled+0x48/0x280
[  235.221098]  ? kasan_check_read+0x11/0x20
[  235.225247]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  235.230523]  ? rcu_softirq_qs+0x20/0x20
[  235.234504]  ? preempt_schedule+0x4d/0x60
[  235.238663]  ? ___preempt_schedule+0x16/0x18
[  235.243081]  ? bpf_test_run+0x25d/0x780
[  235.247068]  ? netlink_diag_dump+0x2a0/0x2a0
[  235.251484]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  235.257028]  ? bpf_test_init.isra.10+0x70/0x100
[  235.261706]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  235.266487]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  235.271329]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  235.276867]  ? fput+0x130/0x1a0
[  235.280152]  ? __bpf_prog_get+0x9b/0x290
[  235.284218]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  235.289059]  ? bpf_prog_test_run+0x130/0x1a0
[  235.293472]  ? __x64_sys_bpf+0x3d8/0x520
[  235.297534]  ? bpf_prog_get+0x20/0x20
[  235.301356]  ? do_syscall_64+0x1b9/0x820
[  235.305418]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  235.310789]  ? syscall_return_slowpath+0x5e0/0x5e0
[  235.315723]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.320765]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  235.325787]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  235.332454]  ? __switch_to_asm+0x40/0x70
[  235.336515]  ? __switch_to_asm+0x34/0x70
[  235.340588]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.345438]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  235.350823] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  235.350903] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  235.357765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  235.357774] Call Trace:
[  235.364342] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  235.373596]  <IRQ>
[  235.376169] syz-executor4 cpuset=syz4 mems_allowed=0
[  235.386648]  dump_stack+0x244/0x39d
[  235.397489]  ? dump_stack_print_info.cold.1+0x20/0x20
[  235.402693]  warn_alloc.cold.116+0xb7/0x1bd
[  235.407023]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  235.411870]  ? lock_downgrade+0x900/0x900
[  235.416031]  ? trace_hardirqs_off+0xb8/0x310
[  235.420450]  ? trace_hardirqs_off+0xb8/0x310
[  235.424870]  __alloc_pages_slowpath+0x26e8/0x2e10
[  235.429754]  ? warn_alloc+0x120/0x120
[  235.433564]  ? print_usage_bug+0xc0/0xc0
[  235.437627]  ? warn_alloc+0x120/0x120
[  235.441435]  ? warn_alloc+0x120/0x120
[  235.445246]  ? print_usage_bug+0xc0/0xc0
[  235.449315]  ? print_usage_bug+0xc0/0xc0
[  235.453379]  ? __lock_acquire+0x62f/0x4c20
[  235.457623]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  235.463166]  ? should_fail+0x22d/0xd01
[  235.467061]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  235.472175]  ? __lock_acquire+0x62f/0x4c20
[  235.476420]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  235.481545]  ? __lock_acquire+0x62f/0x4c20
[  235.485781]  ? should_fail+0x22d/0xd01
[  235.489675]  ? find_held_lock+0x36/0x1c0
[  235.493756]  ? mark_held_locks+0x130/0x130
[  235.497999]  ? mark_held_locks+0x130/0x130
[  235.502234]  ? zap_class+0x640/0x640
[  235.505957]  ? zap_class+0x640/0x640
[  235.509674]  ? print_usage_bug+0xc0/0xc0
[  235.513744]  ? do_raw_spin_unlock+0xa7/0x330
[  235.518157]  ? zap_class+0x640/0x640
[  235.521871]  ? print_usage_bug+0xc0/0xc0
[  235.525933]  ? wq_watchdog_touch+0x9c/0xfe
[  235.530172]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.535712]  ? check_preemption_disabled+0x48/0x280
[  235.540753]  ? __lock_is_held+0xb5/0x140
[  235.544824]  __alloc_pages_nodemask+0xa80/0xde0
[  235.549495]  ? zap_class+0x640/0x640
[  235.553218]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  235.558258]  ? find_held_lock+0x36/0x1c0
[  235.562333]  ? ____cache_alloc_node+0x1c7/0x1e0
[  235.567019]  ? lock_downgrade+0x900/0x900
[  235.571176]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.576721]  cache_grow_begin+0xa5/0x8c0
[  235.580793]  ? do_raw_spin_unlock+0xa7/0x330
[  235.585211]  fallback_alloc+0x204/0x2e0
[  235.589201]  ____cache_alloc_node+0x1c7/0x1e0
[  235.593711]  kmem_cache_alloc_node+0xe3/0x730
[  235.598220]  ? ipv6_get_ifaddr+0x42e/0x620
[  235.602474]  __alloc_skb+0x119/0x770
[  235.606187]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  235.611470]  ? netdev_alloc_frag+0x1f0/0x1f0
[  235.615885]  ? lock_downgrade+0x900/0x900
[  235.620043]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.625582]  ? refcount_sub_and_test_checked+0x203/0x310
[  235.631039]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  235.636496]  ? addrconf_rs_timer+0x690/0x690
[  235.640922]  ndisc_alloc_skb+0x144/0x340
[  235.644995]  ndisc_send_rs+0x331/0x6e0
[  235.648894]  addrconf_rs_timer+0x314/0x690
[  235.653141]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.657390]  call_timer_fn+0x272/0x920
[  235.661278]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.665518]  ? process_timeout+0x40/0x40
[  235.669596]  ? mark_held_locks+0xc7/0x130
[  235.673756]  ? _raw_spin_unlock_irq+0x27/0x80
[  235.678258]  ? _raw_spin_unlock_irq+0x27/0x80
[  235.682767]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.687007]  ? lockdep_hardirqs_on+0x296/0x5b0
[  235.691592]  ? trace_hardirqs_on+0xbd/0x310
[  235.695920]  ? kasan_check_read+0x11/0x20
[  235.700070]  ? __run_timers+0x7da/0xc70
[  235.704051]  ? trace_hardirqs_off_caller+0x310/0x310
[  235.709165]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.713409]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  235.717646]  __run_timers+0x7e5/0xc70
[  235.721462]  ? timer_fixup_init+0x70/0x70
[  235.725614]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  235.730637]  ? zap_class+0x640/0x640
[  235.734360]  ? print_usage_bug+0xc0/0xc0
[  235.738427]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  235.743624]  ? find_held_lock+0x36/0x1c0
[  235.747695]  ? zap_class+0x640/0x640
[  235.751425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.756968]  ? check_preemption_disabled+0x48/0x280
[  235.761999]  ? __lock_is_held+0xb5/0x140
[  235.766064]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.771602]  ? check_preemption_disabled+0x48/0x280
[  235.776625]  run_timer_softirq+0x52/0xb0
[  235.780694]  ? rcu_read_lock_sched_held+0x14f/0x180
[  235.785720]  __do_softirq+0x308/0xb7e
[  235.789534]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  235.794032]  ? lock_downgrade+0x900/0x900
[  235.798184]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  235.803302]  ? pvclock_read_flags+0x160/0x160
[  235.807802]  ? lapic_next_event+0x5a/0x90
[  235.811953]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.817644]  ? kvm_clock_read+0x18/0x30
[  235.821622]  ? kvm_sched_clock_read+0x9/0x20
[  235.826037]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.831581]  ? check_preemption_disabled+0x48/0x280
[  235.836614]  irq_exit+0x17f/0x1c0
[  235.840069]  smp_apic_timer_interrupt+0x1cb/0x760
[  235.844913]  ? smp_reschedule_interrupt+0x109/0x650
[  235.849930]  ? smp_call_function_single_interrupt+0x650/0x650
[  235.855817]  ? interrupt_entry+0xb5/0xc0
[  235.859884]  ? trace_hardirqs_off_caller+0xbb/0x310
[  235.864905]  ? trace_hardirqs_off_caller+0xbb/0x310
[  235.869930]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.874779]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.879810]  ? trace_hardirqs_on_caller+0x310/0x310
[  235.884826]  ? task_prio+0x50/0x50
[  235.888377]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  235.893923]  ? check_preemption_disabled+0x48/0x280
[  235.898946]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  235.903801]  apic_timer_interrupt+0xf/0x20
[  235.908029]  </IRQ>
[  235.910277] RIP: 0010:check_memory_region+0x121/0x1b0
[  235.915484] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  235.934392] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  235.942110] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  235.949378] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  235.956646] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  235.963916] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  235.971187] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  235.978478]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  235.983781]  kasan_check_read+0x11/0x20
[  235.987766]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  235.992875]  ? rcu_softirq_qs+0x20/0x20
[  235.996860]  rcu_is_watching+0x10/0x30
[  236.000757]  list_lru_count_one+0x362/0x450
[  236.005083]  ? list_lru_isolate_move+0x3c0/0x3c0
[  236.009841]  ? shmem_free_inode+0xd0/0xd0
[  236.013997]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.019539]  ? ubifs_shrink_count+0xc4/0x100
[  236.023956]  super_cache_count+0x153/0x2e0
[  236.028198]  do_shrink_slab+0x1b1/0xd30
[  236.032184]  ? lock_acquire+0x1ed/0x520
[  236.036168]  ? snapshot_refaults+0x290/0x290
[  236.040580]  ? lock_release+0xa00/0xa00
[  236.044560]  ? perf_trace_sched_process_exec+0x860/0x860
[  236.050022]  ? down_read_trylock+0xda/0x140
[  236.054344]  ? shrink_slab+0x207/0x8c0
[  236.058235]  ? downgrade_write+0x270/0x270
[  236.062489]  shrink_slab+0x389/0x8c0
[  236.066204]  ? shrink_active_list+0x1f00/0x1f00
[  236.070885]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  236.076518]  ? kasan_check_read+0x11/0x20
[  236.080668]  ? do_raw_spin_unlock+0xa7/0x330
[  236.085086]  ? ___preempt_schedule+0x16/0x18
[  236.089507]  ? _raw_spin_unlock+0x3f/0x50
[  236.093664]  shrink_node+0x431/0x16b0
[  236.097468]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  236.102778]  ? shrink_node_memcg+0x18f0/0x18f0
[  236.107361]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  236.111948]  ? trace_hardirqs_on+0xbd/0x310
[  236.116270]  ? vmpressure+0x271/0x340
[  236.120080]  ? do_raw_spin_trylock+0x270/0x270
[  236.124673]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  236.130213]  ? __cpuset_node_allowed+0x19b/0x660
[  236.134985]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  236.140699]  ? vmpressure+0x1a2/0x340
[  236.144517]  do_try_to_free_pages+0x3e7/0x1290
[  236.149099]  ? zap_class+0x640/0x640
[  236.152847]  ? shrink_node+0x16b0/0x16b0
[  236.156918]  ? __lock_is_held+0xb5/0x140
[  236.160996]  try_to_free_pages+0x4d0/0xb90
[  236.165235]  ? do_try_to_free_pages+0x1290/0x1290
[  236.170101]  ? lock_acquire+0x1ed/0x520
[  236.174075]  ? set_page_refcounted+0x280/0x280
[  236.178664]  ? lock_release+0xa00/0xa00
[  236.182638]  ? _raw_spin_unlock_irq+0x60/0x80
[  236.187146]  ? psi_memstall_enter+0x240/0x2b0
[  236.191641]  ? psi_memstall_tick+0x230/0x230
[  236.196060]  __alloc_pages_slowpath+0xa14/0x2e10
[  236.200846]  ? warn_alloc+0x120/0x120
[  236.204646]  ? mark_held_locks+0x130/0x130
[  236.208889]  ? find_get_entry+0xaae/0x1120
[  236.213133]  ? filemap_map_pages+0x1a20/0x1a20
[  236.217725]  ? zap_class+0x640/0x640
[  236.221454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  236.226993]  ? check_preemption_disabled+0x48/0x280
[  236.232010]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.237548]  ? should_fail+0x22d/0xd01
[  236.241441]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  236.246586]  ? zap_class+0x640/0x640
[  236.250329]  ? __lock_is_held+0xb5/0x140
[  236.254401]  ? mark_held_locks+0x130/0x130
[  236.258639]  ? lock_release+0xa00/0xa00
[  236.262619]  ? perf_trace_sched_process_exec+0x860/0x860
[  236.268073]  ? xa_load+0x2ba/0x460
[  236.271618]  ? lock_downgrade+0x900/0x900
[  236.275774]  ? __might_sleep+0x95/0x190
[  236.279766]  __alloc_pages_nodemask+0xa80/0xde0
[  236.284455]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  236.289476]  ? __page_cache_alloc+0x191/0x5c0
[  236.293977]  ? xa_load+0x2e1/0x460
[  236.297523]  ? xa_clear_mark+0x40/0x40
[  236.301414]  ? zap_class+0x640/0x640
[  236.305135]  ? zap_class+0x640/0x640
[  236.308849]  ? zap_class+0x640/0x640
[  236.312566]  ? __do_page_cache_readahead+0x663/0x810
[  236.317680]  ? find_held_lock+0x36/0x1c0
[  236.321757]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  236.327303]  alloc_pages_current+0x173/0x350
[  236.331724]  __page_cache_alloc+0x38c/0x5c0
[  236.336059]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.340993]  ? kasan_check_read+0x11/0x20
[  236.345145]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.350428]  ? generic_perform_write+0x6a0/0x6a0
[  236.355187]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.360740]  ? check_preemption_disabled+0x48/0x280
[  236.365771]  filemap_fault+0x1595/0x25f0
[  236.369855]  ? __lock_page_or_retry+0xa00/0xa00
[  236.374532]  ? mark_held_locks+0x130/0x130
[  236.378782]  ? filemap_map_pages+0xd6b/0x1a20
[  236.383282]  ? lock_downgrade+0x900/0x900
[  236.387449]  ? check_preemption_disabled+0x48/0x280
[  236.392469]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.397406]  ? kasan_check_read+0x11/0x20
[  236.401561]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.406841]  ? rcu_softirq_qs+0x20/0x20
[  236.410834]  ? filemap_map_pages+0xd92/0x1a20
[  236.415347]  ? find_get_entries_tag+0x1400/0x1400
[  236.420189]  ? find_held_lock+0x36/0x1c0
[  236.424281]  ? lock_acquire+0x1ed/0x520
[  236.428264]  ? ext4_filemap_fault+0x7a/0xad
[  236.432597]  ? lock_release+0xa00/0xa00
[  236.436575]  ? perf_trace_sched_process_exec+0x860/0x860
[  236.442030]  ? print_usage_bug+0xc0/0xc0
[  236.446108]  ? down_read+0x8d/0x120
[  236.449741]  ? ext4_filemap_fault+0x7a/0xad
[  236.454071]  ? __down_interruptible+0x700/0x700
[  236.458751]  ? find_held_lock+0x36/0x1c0
[  236.462821]  ext4_filemap_fault+0x82/0xad
[  236.466974]  __do_fault+0x100/0x6b0
[  236.470604]  ? lock_downgrade+0x900/0x900
[  236.474762]  ? pmd_devmap_trans_unstable+0x220/0x220
[  236.479877]  ? kasan_check_read+0x11/0x20
[  236.484027]  ? do_raw_spin_unlock+0xa7/0x330
[  236.488441]  ? do_raw_spin_trylock+0x270/0x270
[  236.493042]  __handle_mm_fault+0x3ea0/0x5be0
[  236.497467]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  236.502320]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  236.506917]  ? zap_class+0x640/0x640
[  236.510634]  ? zap_class+0x640/0x640
[  236.514351]  ? __x64_sys_futex+0x53e/0x6a0
[  236.518597]  ? find_held_lock+0x36/0x1c0
[  236.522669]  ? handle_mm_fault+0x42a/0xc70
[  236.526907]  ? lock_downgrade+0x900/0x900
[  236.531060]  ? check_preemption_disabled+0x48/0x280
[  236.536086]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  236.541021]  ? kasan_check_read+0x11/0x20
[  236.545171]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  236.550452]  ? rcu_softirq_qs+0x20/0x20
[  236.554430]  ? trace_hardirqs_off_caller+0x310/0x310
[  236.559538]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  236.565079]  ? check_preemption_disabled+0x48/0x280
[  236.570104]  handle_mm_fault+0x54f/0xc70
[  236.574171]  ? __handle_mm_fault+0x5be0/0x5be0
[  236.578769]  ? find_vma+0x34/0x190
[  236.582316]  __do_page_fault+0x5e8/0xe60
[  236.586381]  ? trace_hardirqs_off+0xb8/0x310
[  236.590802]  do_page_fault+0xf2/0x7e0
[  236.594606]  ? vmalloc_sync_all+0x30/0x30
[  236.598763]  ? error_entry+0x70/0xd0
[  236.602509]  ? trace_hardirqs_off_caller+0xbb/0x310
[  236.607526]  ? trace_hardirqs_on_caller+0xc0/0x310
[  236.612461]  ? syscall_return_slowpath+0x5e0/0x5e0
[  236.617394]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  236.622245]  ? trace_hardirqs_on_caller+0x310/0x310
[  236.627269]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  236.632738]  ? prepare_exit_to_usermode+0x291/0x3b0
[  236.637765]  ? page_fault+0x8/0x30
[  236.641309]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  236.646157]  ? page_fault+0x8/0x30
[  236.649703]  page_fault+0x1e/0x30
[  236.653164] RIP: 0033:0x404068
[  236.656387] Code: Bad RIP value.
[  236.659761] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  236.665122] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  236.672390] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  236.679662] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  236.686928] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  236.694196] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  236.701487] warn_alloc_show_mem: 1 callbacks suppressed
[  236.701499] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  236.701500] Mem-Info:
[  236.701532] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  236.701532]  active_file:13 inactive_file:28 isolated_file:0
[  236.701532]  unevictable:0 dirty:1 writeback:0 unstable:0
[  236.701532]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  236.701532]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  236.701532]  free:13541 free_pcp:161 free_cma:0
[  236.706874] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  236.714151] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  236.716550] Call Trace:
[  236.749587] 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
[  236.758935]  <IRQ>
[  236.786847] lowmem_reserve[]: 0 2818 6321 6321
[  236.789457]  dump_stack+0x244/0x39d
[  236.815530] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  236.817686]  ? dump_stack_print_info.cold.1+0x20/0x20
[  236.822243] lowmem_reserve[]: 0 0 3503 3503
[  236.825901]  warn_alloc.cold.116+0xb7/0x1bd
[  236.853452] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  236.858639]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  236.862932] lowmem_reserve[]: 0 0 0 0
[  236.867257]  ? lock_downgrade+0x900/0x900
[  236.896382] 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
[  236.901223]  ? trace_hardirqs_off+0xb8/0x310
[  236.905003] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  236.909146]  ? trace_hardirqs_off+0xb8/0x310
[  236.922642] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  236.927055]  __alloc_pages_slowpath+0x26e8/0x2e10
[  236.942205] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  236.946803]  ? warn_alloc+0x120/0x120
[  236.961246] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  236.966072]  ? print_usage_bug+0xc0/0xc0
[  236.974885] 4984 total pagecache pages
[  236.978678]  ? warn_alloc+0x120/0x120
[  236.987236] 0 pages in swap cache
[  236.991286]  ? warn_alloc+0x120/0x120
[  236.995154] Swap cache stats: add 0, delete 0, find 0/0
[  236.998946]  ? print_usage_bug+0xc0/0xc0
[  237.002372] Free swap  = 0kB
[  237.006168]  ? kvm_clock_read+0x18/0x30
[  237.011506] Total swap = 0kB
[  237.015564]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  237.018559] 1965979 pages RAM
[  237.022528]  ? print_usage_bug+0xc0/0xc0
[  237.025522] 0 pages HighMem/MovableOnly
[  237.030534]  ? __lock_acquire+0x62f/0x4c20
[  237.033615] 342853 pages reserved
[  237.037671]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.041623] 0 pages cma reserved
[  237.045862]  ? should_fail+0x22d/0xd01
[  237.049354] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  237.054813]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.054832]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.054849]  ? __lock_acquire+0x62f/0x4c20
[  237.058282] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  237.062099]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.068568] syz-fuzzer cpuset=/ mems_allowed=0
[  237.073839]  ? __lock_acquire+0x62f/0x4c20
[  237.107225]  ? should_fail+0x22d/0xd01
[  237.111113]  ? rcu_irq_exit+0x1a2/0x390
[  237.115097]  ? mark_held_locks+0x130/0x130
[  237.119337]  ? mark_held_locks+0x130/0x130
[  237.123607]  ? mark_held_locks+0xc7/0x130
[  237.127764]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  237.132783]  ? zap_class+0x640/0x640
[  237.136502]  ? print_usage_bug+0xc0/0xc0
[  237.140567]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.146107]  ? check_preemption_disabled+0x48/0x280
[  237.151136]  ? __lock_is_held+0xb5/0x140
[  237.155204]  __alloc_pages_nodemask+0xa80/0xde0
[  237.159876]  ? zap_class+0x640/0x640
[  237.163601]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  237.168631]  ? find_held_lock+0x36/0x1c0
[  237.172703]  ? ____cache_alloc_node+0x1c7/0x1e0
[  237.177386]  ? lock_downgrade+0x900/0x900
[  237.181543]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.187084]  cache_grow_begin+0xa5/0x8c0
[  237.191145]  ? do_raw_spin_unlock+0xa7/0x330
[  237.195563]  fallback_alloc+0x204/0x2e0
[  237.199546]  ____cache_alloc_node+0x1c7/0x1e0
[  237.204053]  kmem_cache_alloc_node+0xe3/0x730
[  237.208556]  ? ipv6_get_ifaddr+0x42e/0x620
[  237.212805]  __alloc_skb+0x119/0x770
[  237.216519]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.221806]  ? netdev_alloc_frag+0x1f0/0x1f0
[  237.226216]  ? lock_downgrade+0x900/0x900
[  237.230374]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.235917]  ? refcount_sub_and_test_checked+0x203/0x310
[  237.241374]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  237.246829]  ? addrconf_rs_timer+0x690/0x690
[  237.251282]  ndisc_alloc_skb+0x144/0x340
[  237.255365]  ndisc_send_rs+0x331/0x6e0
[  237.259258]  addrconf_rs_timer+0x314/0x690
[  237.263499]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.267759]  call_timer_fn+0x272/0x920
[  237.271651]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.275888]  ? process_timeout+0x40/0x40
[  237.279960]  ? __run_timers+0x7da/0xc70
[  237.283937]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.288431]  ? _raw_spin_unlock_irq+0x27/0x80
[  237.292931]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.297173]  ? lockdep_hardirqs_on+0x296/0x5b0
[  237.301773]  ? trace_hardirqs_on+0xbd/0x310
[  237.306097]  ? kasan_check_read+0x11/0x20
[  237.310246]  ? __run_timers+0x7da/0xc70
[  237.314228]  ? trace_hardirqs_off_caller+0x310/0x310
[  237.319335]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.323578]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  237.327816]  __run_timers+0x7e5/0xc70
[  237.331633]  ? timer_fixup_init+0x70/0x70
[  237.335789]  ? kasan_check_read+0x11/0x20
[  237.339939]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.345220]  ? rcu_softirq_qs+0x20/0x20
[  237.349202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.354757]  ? check_preemption_disabled+0x48/0x280
[  237.359786]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  237.364545]  ? retint_kernel+0x2d/0x2d
[  237.368439]  ? trace_hardirqs_on_caller+0xc0/0x310
[  237.373388]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  237.378150]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  237.383603]  ? zap_class+0x640/0x640
[  237.387327]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.392873]  ? check_preemption_disabled+0x48/0x280
[  237.397902]  ? __lock_is_held+0xb5/0x140
[  237.401967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.407509]  ? check_preemption_disabled+0x48/0x280
[  237.412530]  run_timer_softirq+0x52/0xb0
[  237.416592]  ? rcu_read_lock_sched_held+0x14f/0x180
[  237.421614]  __do_softirq+0x308/0xb7e
[  237.425420]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  237.429935]  ? lock_downgrade+0x900/0x900
[  237.434092]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  237.439206]  ? pvclock_read_flags+0x160/0x160
[  237.443705]  ? lapic_next_event+0x5a/0x90
[  237.447870]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.453416]  ? kvm_clock_read+0x18/0x30
[  237.457411]  ? kvm_sched_clock_read+0x9/0x20
[  237.461839]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.467381]  ? check_preemption_disabled+0x48/0x280
[  237.472408]  irq_exit+0x17f/0x1c0
[  237.475869]  smp_apic_timer_interrupt+0x1cb/0x760
[  237.480710]  ? smp_reschedule_interrupt+0x109/0x650
[  237.485756]  ? smp_call_function_single_interrupt+0x650/0x650
[  237.491646]  ? interrupt_entry+0xb5/0xc0
[  237.495712]  ? trace_hardirqs_off_caller+0xbb/0x310
[  237.500752]  ? trace_hardirqs_off_caller+0xbb/0x310
[  237.505778]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  237.510625]  ? trace_hardirqs_on_caller+0x310/0x310
[  237.515643]  ? trace_hardirqs_on_caller+0x310/0x310
[  237.520658]  ? task_prio+0x50/0x50
[  237.524205]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.529755]  ? check_preemption_disabled+0x48/0x280
[  237.534784]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  237.539636]  apic_timer_interrupt+0xf/0x20
[  237.543865]  </IRQ>
[  237.546111] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  237.551042] 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
[  237.569942] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  237.577647] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  237.584940] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  237.592207] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  237.599475] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  237.606754] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  237.614065]  skb_clone+0x1bb/0x500
[  237.617614]  ? skb_split+0x11e0/0x11e0
[  237.621507]  ? preempt_notifier_register+0x200/0x200
[  237.626611]  ? __switch_to_asm+0x34/0x70
[  237.630672]  ? __switch_to_asm+0x34/0x70
[  237.634745]  ? __switch_to_asm+0x40/0x70
[  237.638807]  ? __switch_to_asm+0x34/0x70
[  237.642871]  ? __switch_to_asm+0x40/0x70
[  237.646930]  ? __switch_to_asm+0x40/0x70
[  237.650995]  ? __switch_to_asm+0x34/0x70
[  237.655058]  ? __switch_to_asm+0x34/0x70
[  237.659121]  ? __switch_to_asm+0x40/0x70
[  237.663198]  ? __switch_to_asm+0x34/0x70
[  237.667270]  bpf_clone_redirect+0xb9/0x490
[  237.671514]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  237.676534]  ? __sched_text_start+0x8/0x8
[  237.680685]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  237.685448]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  237.690214]  ? find_held_lock+0x36/0x1c0
[  237.694285]  ? lock_acquire+0x1ed/0x520
[  237.698261]  ? bpf_test_run+0x3cb/0x780
[  237.702239]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  237.707779]  ? check_preemption_disabled+0x48/0x280
[  237.712802]  ? kasan_check_read+0x11/0x20
[  237.716951]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  237.722227]  ? rcu_softirq_qs+0x20/0x20
[  237.726213]  ? preempt_schedule+0x4d/0x60
[  237.730365]  ? ___preempt_schedule+0x16/0x18
[  237.734788]  ? bpf_test_run+0x25d/0x780
[  237.738782]  ? netlink_diag_dump+0x2a0/0x2a0
[  237.743195]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.748749]  ? bpf_test_init.isra.10+0x70/0x100
[  237.753430]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  237.758197]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  237.763040]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  237.768580]  ? fput+0x130/0x1a0
[  237.771866]  ? __bpf_prog_get+0x9b/0x290
[  237.775936]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  237.780783]  ? bpf_prog_test_run+0x130/0x1a0
[  237.785195]  ? __x64_sys_bpf+0x3d8/0x520
[  237.789263]  ? bpf_prog_get+0x20/0x20
[  237.793086]  ? do_syscall_64+0x1b9/0x820
[  237.797150]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  237.802615]  ? syscall_return_slowpath+0x5e0/0x5e0
[  237.807553]  ? trace_hardirqs_on_caller+0x310/0x310
[  237.812570]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  237.818059]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  237.824725]  ? __switch_to_asm+0x40/0x70
[  237.828798]  ? __switch_to_asm+0x34/0x70
[  237.832868]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  237.837718]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  237.843119] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  237.843189] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  237.850044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  237.850050] Call Trace:
[  237.850057]  <IRQ>
[  237.850073]  dump_stack+0x244/0x39d
[  237.850093]  ? dump_stack_print_info.cold.1+0x20/0x20
[  237.856625] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  237.865928]  warn_alloc.cold.116+0xb7/0x1bd
[  237.868486] syz-executor4 cpuset=syz4 mems_allowed=0
[  237.870631]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  237.904119]  ? lock_downgrade+0x900/0x900
[  237.908327]  ? trace_hardirqs_off+0xb8/0x310
[  237.912748]  ? trace_hardirqs_off+0xb8/0x310
[  237.917168]  __alloc_pages_slowpath+0x26e8/0x2e10
[  237.922044]  ? warn_alloc+0x120/0x120
[  237.925851]  ? print_usage_bug+0xc0/0xc0
[  237.929917]  ? warn_alloc+0x120/0x120
[  237.933726]  ? warn_alloc+0x120/0x120
[  237.937539]  ? print_usage_bug+0xc0/0xc0
[  237.941626]  ? print_usage_bug+0xc0/0xc0
[  237.945688]  ? __lock_acquire+0x62f/0x4c20
[  237.949932]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  237.955470]  ? should_fail+0x22d/0xd01
[  237.959363]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.964471]  ? __lock_acquire+0x62f/0x4c20
[  237.968714]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  237.973824]  ? __lock_acquire+0x62f/0x4c20
[  237.978057]  ? should_fail+0x22d/0xd01
[  237.981949]  ? find_held_lock+0x36/0x1c0
[  237.986025]  ? mark_held_locks+0x130/0x130
[  237.990270]  ? mark_held_locks+0x130/0x130
[  237.994506]  ? zap_class+0x640/0x640
[  237.998224]  ? zap_class+0x640/0x640
[  238.001954]  ? print_usage_bug+0xc0/0xc0
[  238.006013]  ? do_raw_spin_unlock+0xa7/0x330
[  238.010422]  ? zap_class+0x640/0x640
[  238.014136]  ? print_usage_bug+0xc0/0xc0
[  238.018195]  ? wq_watchdog_touch+0x9c/0xfe
[  238.022473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.028012]  ? check_preemption_disabled+0x48/0x280
[  238.033043]  ? __lock_is_held+0xb5/0x140
[  238.037112]  __alloc_pages_nodemask+0xa80/0xde0
[  238.041786]  ? zap_class+0x640/0x640
[  238.045506]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  238.050539]  ? find_held_lock+0x36/0x1c0
[  238.054617]  ? ____cache_alloc_node+0x1c7/0x1e0
[  238.059292]  ? lock_downgrade+0x900/0x900
[  238.063454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.069003]  cache_grow_begin+0xa5/0x8c0
[  238.073064]  ? do_raw_spin_unlock+0xa7/0x330
[  238.077483]  fallback_alloc+0x204/0x2e0
[  238.081464]  ____cache_alloc_node+0x1c7/0x1e0
[  238.085971]  kmem_cache_alloc_node+0xe3/0x730
[  238.090473]  ? ipv6_get_ifaddr+0x42e/0x620
[  238.094721]  __alloc_skb+0x119/0x770
[  238.098449]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.103738]  ? netdev_alloc_frag+0x1f0/0x1f0
[  238.108148]  ? lock_downgrade+0x900/0x900
[  238.112310]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.117854]  ? refcount_sub_and_test_checked+0x203/0x310
[  238.123312]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  238.128764]  ? addrconf_rs_timer+0x690/0x690
[  238.133188]  ndisc_alloc_skb+0x144/0x340
[  238.137266]  ndisc_send_rs+0x331/0x6e0
[  238.141164]  addrconf_rs_timer+0x314/0x690
[  238.145410]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.149659]  call_timer_fn+0x272/0x920
[  238.153544]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.157781]  ? process_timeout+0x40/0x40
[  238.161858]  ? mark_held_locks+0xc7/0x130
[  238.166006]  ? _raw_spin_unlock_irq+0x27/0x80
[  238.170501]  ? _raw_spin_unlock_irq+0x27/0x80
[  238.175000]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.179245]  ? lockdep_hardirqs_on+0x296/0x5b0
[  238.183834]  ? trace_hardirqs_on+0xbd/0x310
[  238.188158]  ? kasan_check_read+0x11/0x20
[  238.192308]  ? __run_timers+0x7da/0xc70
[  238.196300]  ? trace_hardirqs_off_caller+0x310/0x310
[  238.201427]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.205675]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  238.209909]  __run_timers+0x7e5/0xc70
[  238.213724]  ? timer_fixup_init+0x70/0x70
[  238.217885]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  238.222921]  ? zap_class+0x640/0x640
[  238.226640]  ? print_usage_bug+0xc0/0xc0
[  238.230703]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  238.235914]  ? find_held_lock+0x36/0x1c0
[  238.239980]  ? zap_class+0x640/0x640
[  238.243702]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.249256]  ? check_preemption_disabled+0x48/0x280
[  238.254297]  ? __lock_is_held+0xb5/0x140
[  238.258361]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.263904]  ? check_preemption_disabled+0x48/0x280
[  238.268925]  run_timer_softirq+0x52/0xb0
[  238.272987]  ? rcu_read_lock_sched_held+0x14f/0x180
[  238.278009]  __do_softirq+0x308/0xb7e
[  238.281815]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  238.286311]  ? lock_downgrade+0x900/0x900
[  238.290463]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  238.295574]  ? pvclock_read_flags+0x160/0x160
[  238.300071]  ? lapic_next_event+0x5a/0x90
[  238.304226]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.309775]  ? kvm_clock_read+0x18/0x30
[  238.313789]  ? kvm_sched_clock_read+0x9/0x20
[  238.318209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.323763]  ? check_preemption_disabled+0x48/0x280
[  238.328795]  irq_exit+0x17f/0x1c0
[  238.332255]  smp_apic_timer_interrupt+0x1cb/0x760
[  238.337098]  ? smp_reschedule_interrupt+0x109/0x650
[  238.342121]  ? smp_call_function_single_interrupt+0x650/0x650
[  238.348005]  ? interrupt_entry+0xb5/0xc0
[  238.352071]  ? trace_hardirqs_off_caller+0xbb/0x310
[  238.357089]  ? trace_hardirqs_off_caller+0xbb/0x310
[  238.362110]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.366959]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.371975]  ? trace_hardirqs_on_caller+0x310/0x310
[  238.376991]  ? task_prio+0x50/0x50
[  238.380540]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.386081]  ? check_preemption_disabled+0x48/0x280
[  238.391104]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  238.395958]  apic_timer_interrupt+0xf/0x20
[  238.400192]  </IRQ>
[  238.402434] RIP: 0010:check_memory_region+0x121/0x1b0
[  238.407716] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  238.426624] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  238.434332] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  238.441598] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  238.448866] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  238.456138] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  238.463407] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  238.470695]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.475996]  kasan_check_read+0x11/0x20
[  238.479974]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.485082]  ? rcu_softirq_qs+0x20/0x20
[  238.489071]  rcu_is_watching+0x10/0x30
[  238.492965]  list_lru_count_one+0x362/0x450
[  238.497289]  ? list_lru_isolate_move+0x3c0/0x3c0
[  238.502047]  ? shmem_free_inode+0xd0/0xd0
[  238.506198]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.511743]  ? ubifs_shrink_count+0xc4/0x100
[  238.516165]  super_cache_count+0x153/0x2e0
[  238.520410]  do_shrink_slab+0x1b1/0xd30
[  238.524395]  ? lock_acquire+0x1ed/0x520
[  238.528377]  ? snapshot_refaults+0x290/0x290
[  238.532792]  ? lock_release+0xa00/0xa00
[  238.536777]  ? perf_trace_sched_process_exec+0x860/0x860
[  238.542246]  ? down_read_trylock+0xda/0x140
[  238.546572]  ? shrink_slab+0x207/0x8c0
[  238.550459]  ? downgrade_write+0x270/0x270
[  238.554710]  shrink_slab+0x389/0x8c0
[  238.558434]  ? shrink_active_list+0x1f00/0x1f00
[  238.563112]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  238.568754]  ? kasan_check_read+0x11/0x20
[  238.572903]  ? do_raw_spin_unlock+0xa7/0x330
[  238.577326]  ? ___preempt_schedule+0x16/0x18
[  238.581756]  ? _raw_spin_unlock+0x3f/0x50
[  238.585914]  shrink_node+0x431/0x16b0
[  238.589718]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  238.595029]  ? shrink_node_memcg+0x18f0/0x18f0
[  238.599610]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  238.604200]  ? trace_hardirqs_on+0xbd/0x310
[  238.608521]  ? vmpressure+0x271/0x340
[  238.612330]  ? do_raw_spin_trylock+0x270/0x270
[  238.616925]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  238.622467]  ? __cpuset_node_allowed+0x19b/0x660
[  238.627226]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  238.632947]  ? vmpressure+0x1a2/0x340
[  238.636766]  do_try_to_free_pages+0x3e7/0x1290
[  238.641355]  ? zap_class+0x640/0x640
[  238.645091]  ? shrink_node+0x16b0/0x16b0
[  238.649155]  ? __lock_is_held+0xb5/0x140
[  238.653230]  try_to_free_pages+0x4d0/0xb90
[  238.657477]  ? do_try_to_free_pages+0x1290/0x1290
[  238.662333]  ? lock_acquire+0x1ed/0x520
[  238.666313]  ? set_page_refcounted+0x280/0x280
[  238.670905]  ? lock_release+0xa00/0xa00
[  238.674885]  ? _raw_spin_unlock_irq+0x60/0x80
[  238.679383]  ? psi_memstall_enter+0x240/0x2b0
[  238.683885]  ? psi_memstall_tick+0x230/0x230
[  238.688312]  __alloc_pages_slowpath+0xa14/0x2e10
[  238.693099]  ? warn_alloc+0x120/0x120
[  238.696905]  ? mark_held_locks+0x130/0x130
[  238.701146]  ? find_get_entry+0xaae/0x1120
[  238.705396]  ? filemap_map_pages+0x1a20/0x1a20
[  238.709984]  ? zap_class+0x640/0x640
[  238.713706]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  238.719256]  ? check_preemption_disabled+0x48/0x280
[  238.724278]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.729818]  ? should_fail+0x22d/0xd01
[  238.733715]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  238.738832]  ? zap_class+0x640/0x640
[  238.742575]  ? __lock_is_held+0xb5/0x140
[  238.746644]  ? mark_held_locks+0x130/0x130
[  238.750890]  ? lock_release+0xa00/0xa00
[  238.754869]  ? perf_trace_sched_process_exec+0x860/0x860
[  238.760325]  ? xa_load+0x2ba/0x460
[  238.763874]  ? lock_downgrade+0x900/0x900
[  238.768036]  ? __might_sleep+0x95/0x190
[  238.772020]  __alloc_pages_nodemask+0xa80/0xde0
[  238.776704]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  238.781752]  ? __page_cache_alloc+0x191/0x5c0
[  238.786263]  ? xa_load+0x2e1/0x460
[  238.789808]  ? xa_clear_mark+0x40/0x40
[  238.793704]  ? zap_class+0x640/0x640
[  238.797450]  ? zap_class+0x640/0x640
[  238.801162]  ? zap_class+0x640/0x640
[  238.804879]  ? __do_page_cache_readahead+0x663/0x810
[  238.809990]  ? find_held_lock+0x36/0x1c0
[  238.814057]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  238.819615]  alloc_pages_current+0x173/0x350
[  238.824046]  __page_cache_alloc+0x38c/0x5c0
[  238.828372]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  238.833305]  ? kasan_check_read+0x11/0x20
[  238.837452]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.842742]  ? generic_perform_write+0x6a0/0x6a0
[  238.847537]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  238.853080]  ? check_preemption_disabled+0x48/0x280
[  238.858106]  filemap_fault+0x1595/0x25f0
[  238.862184]  ? __lock_page_or_retry+0xa00/0xa00
[  238.866855]  ? mark_held_locks+0x130/0x130
[  238.871103]  ? filemap_map_pages+0xd6b/0x1a20
[  238.875602]  ? lock_downgrade+0x900/0x900
[  238.879756]  ? check_preemption_disabled+0x48/0x280
[  238.884778]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  238.889722]  ? kasan_check_read+0x11/0x20
[  238.893881]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  238.899160]  ? rcu_softirq_qs+0x20/0x20
[  238.903149]  ? filemap_map_pages+0xd92/0x1a20
[  238.907664]  ? find_get_entries_tag+0x1400/0x1400
[  238.912508]  ? find_held_lock+0x36/0x1c0
[  238.916589]  ? lock_acquire+0x1ed/0x520
[  238.920564]  ? ext4_filemap_fault+0x7a/0xad
[  238.924896]  ? lock_release+0xa00/0xa00
[  238.928874]  ? perf_trace_sched_process_exec+0x860/0x860
[  238.934327]  ? print_usage_bug+0xc0/0xc0
[  238.938405]  ? down_read+0x8d/0x120
[  238.942030]  ? ext4_filemap_fault+0x7a/0xad
[  238.946880]  ? __down_interruptible+0x700/0x700
[  238.951557]  ? find_held_lock+0x36/0x1c0
[  238.955626]  ext4_filemap_fault+0x82/0xad
[  238.959781]  __do_fault+0x100/0x6b0
[  238.963416]  ? lock_downgrade+0x900/0x900
[  238.967571]  ? pmd_devmap_trans_unstable+0x220/0x220
[  238.972686]  ? kasan_check_read+0x11/0x20
[  238.976833]  ? do_raw_spin_unlock+0xa7/0x330
[  238.981247]  ? do_raw_spin_trylock+0x270/0x270
[  238.985846]  __handle_mm_fault+0x3ea0/0x5be0
[  238.990271]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  238.995129]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  238.999724]  ? zap_class+0x640/0x640
[  239.003478]  ? zap_class+0x640/0x640
[  239.007192]  ? __x64_sys_futex+0x53e/0x6a0
[  239.011435]  ? find_held_lock+0x36/0x1c0
[  239.015508]  ? handle_mm_fault+0x42a/0xc70
[  239.019752]  ? lock_downgrade+0x900/0x900
[  239.023903]  ? check_preemption_disabled+0x48/0x280
[  239.028926]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  239.033855]  ? kasan_check_read+0x11/0x20
[  239.038003]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.043280]  ? rcu_softirq_qs+0x20/0x20
[  239.047260]  ? trace_hardirqs_off_caller+0x310/0x310
[  239.052368]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.057906]  ? check_preemption_disabled+0x48/0x280
[  239.062934]  handle_mm_fault+0x54f/0xc70
[  239.066999]  ? __handle_mm_fault+0x5be0/0x5be0
[  239.071592]  ? find_vma+0x34/0x190
[  239.075144]  __do_page_fault+0x5e8/0xe60
[  239.079208]  ? trace_hardirqs_off+0xb8/0x310
[  239.083637]  do_page_fault+0xf2/0x7e0
[  239.087440]  ? vmalloc_sync_all+0x30/0x30
[  239.091597]  ? error_entry+0x70/0xd0
[  239.095321]  ? trace_hardirqs_off_caller+0xbb/0x310
[  239.100339]  ? trace_hardirqs_on_caller+0xc0/0x310
[  239.105273]  ? syscall_return_slowpath+0x5e0/0x5e0
[  239.110204]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  239.115055]  ? trace_hardirqs_on_caller+0x310/0x310
[  239.120071]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  239.125527]  ? prepare_exit_to_usermode+0x291/0x3b0
[  239.130545]  ? page_fault+0x8/0x30
[  239.134093]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  239.138943]  ? page_fault+0x8/0x30
[  239.142487]  page_fault+0x1e/0x30
[  239.145943] RIP: 0033:0x404068
[  239.149149] Code: Bad RIP value.
[  239.152521] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  239.157886] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  239.165158] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  239.172431] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  239.179698] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  239.186972] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  239.194271] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  239.194277] warn_alloc_show_mem: 1 callbacks suppressed
[  239.194284] Mem-Info:
[  239.201560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  239.206929] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  239.206929]  active_file:13 inactive_file:28 isolated_file:0
[  239.206929]  unevictable:0 dirty:1 writeback:0 unstable:0
[  239.206929]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  239.206929]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  239.206929]  free:13541 free_pcp:161 free_cma:0
[  239.209302] Call Trace:
[  239.218703] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  239.251719]  <IRQ>
[  239.254314] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  239.282242]  dump_stack+0x244/0x39d
[  239.284368] lowmem_reserve[]: 0 2818 6321 6321
[  239.310477]  ? dump_stack_print_info.cold.1+0x20/0x20
[  239.314077] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  239.318681]  warn_alloc.cold.116+0xb7/0x1bd
[  239.323839] lowmem_reserve[]: 0 0 3503 3503
[  239.351419]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  239.355719] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  239.360052]  ? lock_downgrade+0x900/0x900
[  239.364866] lowmem_reserve[]: 0 0 0 0
[  239.394011]  ? trace_hardirqs_off+0xb8/0x310
[  239.398133] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  239.401930]  ? trace_hardirqs_off+0xb8/0x310
[  239.406310] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  239.419834]  __alloc_pages_slowpath+0x26e8/0x2e10
[  239.424217] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  239.439407]  ? warn_alloc+0x120/0x120
[  239.444209] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  239.458685]  ? print_usage_bug+0xc0/0xc0
[  239.462473] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  239.471296]  ? warn_alloc+0x120/0x120
[  239.475333] 4984 total pagecache pages
[  239.483900]  ? warn_alloc+0x120/0x120
[  239.487686] 0 pages in swap cache
[  239.491560]  ? print_usage_bug+0xc0/0xc0
[  239.495341] Swap cache stats: add 0, delete 0, find 0/0
[  239.498797]  ? print_usage_bug+0xc0/0xc0
[  239.502835] Free swap  = 0kB
[  239.508192]  ? __lock_acquire+0x62f/0x4c20
[  239.512229] Total swap = 0kB
[  239.515243]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  239.519459] 1965979 pages RAM
[  239.522475]  ? should_fail+0x22d/0xd01
[  239.527990] 0 pages HighMem/MovableOnly
[  239.531087]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  239.534954] 342853 pages reserved
[  239.538923]  ? __lock_acquire+0x62f/0x4c20
[  239.544003] 0 pages cma reserved
[  239.547451]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  239.551727] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  239.555015]  ? __lock_acquire+0x62f/0x4c20
[  239.555031]  ? should_fail+0x22d/0xd01
[  239.560208] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  239.566619]  ? find_held_lock+0x36/0x1c0
[  239.570836] syz-fuzzer cpuset=/ mems_allowed=0
[  239.574724]  ? mark_held_locks+0x130/0x130
[  239.597780]  ? mark_held_locks+0x130/0x130
[  239.602014]  ? zap_class+0x640/0x640
[  239.605744]  ? zap_class+0x640/0x640
[  239.609466]  ? print_usage_bug+0xc0/0xc0
[  239.613529]  ? do_raw_spin_unlock+0xa7/0x330
[  239.617938]  ? zap_class+0x640/0x640
[  239.621656]  ? print_usage_bug+0xc0/0xc0
[  239.625716]  ? wq_watchdog_touch+0x9c/0xfe
[  239.629967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.635507]  ? check_preemption_disabled+0x48/0x280
[  239.640532]  ? __lock_is_held+0xb5/0x140
[  239.644603]  __alloc_pages_nodemask+0xa80/0xde0
[  239.649273]  ? zap_class+0x640/0x640
[  239.653000]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  239.658029]  ? find_held_lock+0x36/0x1c0
[  239.662101]  ? ____cache_alloc_node+0x1c7/0x1e0
[  239.666774]  ? lock_downgrade+0x900/0x900
[  239.670931]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.676474]  cache_grow_begin+0xa5/0x8c0
[  239.680547]  ? do_raw_spin_unlock+0xa7/0x330
[  239.684967]  fallback_alloc+0x204/0x2e0
[  239.688947]  ____cache_alloc_node+0x1c7/0x1e0
[  239.693451]  kmem_cache_alloc_node+0xe3/0x730
[  239.697951]  ? ipv6_get_ifaddr+0x42e/0x620
[  239.702198]  __alloc_skb+0x119/0x770
[  239.705914]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.711196]  ? netdev_alloc_frag+0x1f0/0x1f0
[  239.715609]  ? lock_downgrade+0x900/0x900
[  239.719778]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.725315]  ? refcount_sub_and_test_checked+0x203/0x310
[  239.730776]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  239.736228]  ? addrconf_rs_timer+0x690/0x690
[  239.740649]  ndisc_alloc_skb+0x144/0x340
[  239.744716]  ndisc_send_rs+0x331/0x6e0
[  239.748623]  addrconf_rs_timer+0x314/0x690
[  239.752867]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.757114]  call_timer_fn+0x272/0x920
[  239.761004]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.765241]  ? process_timeout+0x40/0x40
[  239.769316]  ? __run_timers+0x7da/0xc70
[  239.773291]  ? _raw_spin_unlock_irq+0x27/0x80
[  239.777787]  ? _raw_spin_unlock_irq+0x27/0x80
[  239.782281]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.786518]  ? lockdep_hardirqs_on+0x296/0x5b0
[  239.791103]  ? trace_hardirqs_on+0xbd/0x310
[  239.795428]  ? kasan_check_read+0x11/0x20
[  239.799573]  ? __run_timers+0x7da/0xc70
[  239.803547]  ? trace_hardirqs_off_caller+0x310/0x310
[  239.808672]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.812916]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  239.817627]  __run_timers+0x7e5/0xc70
[  239.821455]  ? timer_fixup_init+0x70/0x70
[  239.825617]  ? kasan_check_read+0x11/0x20
[  239.829789]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  239.835080]  ? rcu_softirq_qs+0x20/0x20
[  239.839056]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.844599]  ? check_preemption_disabled+0x48/0x280
[  239.849633]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  239.854396]  ? retint_kernel+0x2d/0x2d
[  239.858292]  ? trace_hardirqs_on_caller+0xc0/0x310
[  239.863222]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  239.867982]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  239.873434]  ? zap_class+0x640/0x640
[  239.877161]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.882701]  ? check_preemption_disabled+0x48/0x280
[  239.887812]  ? __lock_is_held+0xb5/0x140
[  239.891882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.897422]  ? check_preemption_disabled+0x48/0x280
[  239.902466]  run_timer_softirq+0x52/0xb0
[  239.906531]  ? rcu_read_lock_sched_held+0x14f/0x180
[  239.911549]  __do_softirq+0x308/0xb7e
[  239.915383]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  239.919881]  ? lock_downgrade+0x900/0x900
[  239.924037]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  239.929148]  ? pvclock_read_flags+0x160/0x160
[  239.933645]  ? lapic_next_event+0x5a/0x90
[  239.937842]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.943420]  ? kvm_clock_read+0x18/0x30
[  239.947395]  ? kvm_sched_clock_read+0x9/0x20
[  239.951807]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  239.957345]  ? check_preemption_disabled+0x48/0x280
[  239.962395]  irq_exit+0x17f/0x1c0
[  239.965854]  smp_apic_timer_interrupt+0x1cb/0x760
[  239.970695]  ? smp_reschedule_interrupt+0x109/0x650
[  239.975718]  ? smp_call_function_single_interrupt+0x650/0x650
[  239.981615]  ? interrupt_entry+0xb5/0xc0
[  239.985692]  ? trace_hardirqs_off_caller+0xbb/0x310
[  239.990711]  ? trace_hardirqs_off_caller+0xbb/0x310
[  239.995760]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.000610]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.005625]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.010641]  ? task_prio+0x50/0x50
[  240.014183]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.019721]  ? check_preemption_disabled+0x48/0x280
[  240.024771]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.029625]  apic_timer_interrupt+0xf/0x20
[  240.033853]  </IRQ>
[  240.036098] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  240.041029] 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
[  240.059931] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  240.067643] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  240.074916] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  240.082188] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  240.089455] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  240.096722] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  240.104046]  skb_clone+0x1bb/0x500
[  240.107588]  ? skb_split+0x11e0/0x11e0
[  240.111481]  ? preempt_notifier_register+0x200/0x200
[  240.116600]  ? __switch_to_asm+0x34/0x70
[  240.120660]  ? __switch_to_asm+0x34/0x70
[  240.124718]  ? __switch_to_asm+0x40/0x70
[  240.128795]  ? __switch_to_asm+0x34/0x70
[  240.132856]  ? __switch_to_asm+0x40/0x70
[  240.136946]  ? __switch_to_asm+0x40/0x70
[  240.141004]  ? __switch_to_asm+0x34/0x70
[  240.145070]  ? __switch_to_asm+0x34/0x70
[  240.149131]  ? __switch_to_asm+0x40/0x70
[  240.153220]  ? __switch_to_asm+0x34/0x70
[  240.157288]  bpf_clone_redirect+0xb9/0x490
[  240.161536]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  240.166557]  ? __sched_text_start+0x8/0x8
[  240.170708]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  240.175509]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  240.180305]  ? find_held_lock+0x36/0x1c0
[  240.184377]  ? lock_acquire+0x1ed/0x520
[  240.188352]  ? bpf_test_run+0x3cb/0x780
[  240.192333]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.197872]  ? check_preemption_disabled+0x48/0x280
[  240.202898]  ? kasan_check_read+0x11/0x20
[  240.207052]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.212343]  ? rcu_softirq_qs+0x20/0x20
[  240.216320]  ? preempt_schedule+0x4d/0x60
[  240.220472]  ? ___preempt_schedule+0x16/0x18
[  240.224892]  ? bpf_test_run+0x25d/0x780
[  240.228880]  ? netlink_diag_dump+0x2a0/0x2a0
[  240.233293]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.238834]  ? bpf_test_init.isra.10+0x70/0x100
[  240.243542]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  240.248311]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  240.253156]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  240.258696]  ? fput+0x130/0x1a0
[  240.262003]  ? __bpf_prog_get+0x9b/0x290
[  240.266072]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  240.270916]  ? bpf_prog_test_run+0x130/0x1a0
[  240.275327]  ? __x64_sys_bpf+0x3d8/0x520
[  240.279407]  ? bpf_prog_get+0x20/0x20
[  240.283291]  ? do_syscall_64+0x1b9/0x820
[  240.287354]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  240.292719]  ? syscall_return_slowpath+0x5e0/0x5e0
[  240.297665]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.302683]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  240.307701]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  240.314380]  ? __switch_to_asm+0x40/0x70
[  240.318439]  ? __switch_to_asm+0x34/0x70
[  240.322507]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.327360]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  240.332759] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  240.332838] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  240.339698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  240.339707] Call Trace:
[  240.346288] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  240.355543]  <IRQ>
[  240.358128] syz-executor4 cpuset=syz4 mems_allowed=0
[  240.368631]  dump_stack+0x244/0x39d
[  240.379515]  ? dump_stack_print_info.cold.1+0x20/0x20
[  240.384720]  warn_alloc.cold.116+0xb7/0x1bd
[  240.389056]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  240.393904]  ? lock_downgrade+0x900/0x900
[  240.398064]  ? trace_hardirqs_off+0xb8/0x310
[  240.402484]  ? trace_hardirqs_off+0xb8/0x310
[  240.406902]  __alloc_pages_slowpath+0x26e8/0x2e10
[  240.411782]  ? warn_alloc+0x120/0x120
[  240.415589]  ? print_usage_bug+0xc0/0xc0
[  240.419653]  ? warn_alloc+0x120/0x120
[  240.423460]  ? warn_alloc+0x120/0x120
[  240.427269]  ? print_usage_bug+0xc0/0xc0
[  240.431331]  ? kvm_clock_read+0x18/0x30
[  240.435311]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  240.440330]  ? print_usage_bug+0xc0/0xc0
[  240.444393]  ? __lock_acquire+0x62f/0x4c20
[  240.448636]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  240.454177]  ? should_fail+0x22d/0xd01
[  240.458074]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.463357]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  240.468465]  ? __lock_acquire+0x62f/0x4c20
[  240.472707]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  240.477821]  ? __lock_acquire+0x62f/0x4c20
[  240.482062]  ? should_fail+0x22d/0xd01
[  240.485953]  ? rcu_irq_exit+0x1a2/0x390
[  240.489938]  ? mark_held_locks+0x130/0x130
[  240.494178]  ? mark_held_locks+0x130/0x130
[  240.498424]  ? mark_held_locks+0xc7/0x130
[  240.502573]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  240.507626]  ? zap_class+0x640/0x640
[  240.511341]  ? print_usage_bug+0xc0/0xc0
[  240.515408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.520949]  ? check_preemption_disabled+0x48/0x280
[  240.525975]  ? __lock_is_held+0xb5/0x140
[  240.530047]  __alloc_pages_nodemask+0xa80/0xde0
[  240.534718]  ? zap_class+0x640/0x640
[  240.538449]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  240.543484]  ? find_held_lock+0x36/0x1c0
[  240.547559]  ? ____cache_alloc_node+0x1c7/0x1e0
[  240.552230]  ? lock_downgrade+0x900/0x900
[  240.556395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.561942]  cache_grow_begin+0xa5/0x8c0
[  240.566007]  ? do_raw_spin_unlock+0xa7/0x330
[  240.570428]  fallback_alloc+0x204/0x2e0
[  240.574409]  ____cache_alloc_node+0x1c7/0x1e0
[  240.578915]  kmem_cache_alloc_node+0xe3/0x730
[  240.583418]  ? ipv6_get_ifaddr+0x42e/0x620
[  240.587665]  __alloc_skb+0x119/0x770
[  240.591391]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.596673]  ? netdev_alloc_frag+0x1f0/0x1f0
[  240.601086]  ? lock_downgrade+0x900/0x900
[  240.605248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.610788]  ? refcount_sub_and_test_checked+0x203/0x310
[  240.616252]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  240.621724]  ? addrconf_rs_timer+0x690/0x690
[  240.626155]  ndisc_alloc_skb+0x144/0x340
[  240.630261]  ndisc_send_rs+0x331/0x6e0
[  240.634181]  addrconf_rs_timer+0x314/0x690
[  240.638424]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.642670]  call_timer_fn+0x272/0x920
[  240.646560]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.650805]  ? process_timeout+0x40/0x40
[  240.654877]  ? mark_held_locks+0xc7/0x130
[  240.659030]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.663527]  ? _raw_spin_unlock_irq+0x27/0x80
[  240.668025]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.672268]  ? lockdep_hardirqs_on+0x296/0x5b0
[  240.676859]  ? trace_hardirqs_on+0xbd/0x310
[  240.681256]  ? kasan_check_read+0x11/0x20
[  240.685410]  ? __run_timers+0x7da/0xc70
[  240.689389]  ? trace_hardirqs_off_caller+0x310/0x310
[  240.694501]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.698755]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  240.702990]  __run_timers+0x7e5/0xc70
[  240.706803]  ? timer_fixup_init+0x70/0x70
[  240.710953]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  240.715972]  ? zap_class+0x640/0x640
[  240.719696]  ? print_usage_bug+0xc0/0xc0
[  240.723800]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  240.729012]  ? find_held_lock+0x36/0x1c0
[  240.733080]  ? zap_class+0x640/0x640
[  240.736813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.742353]  ? check_preemption_disabled+0x48/0x280
[  240.747382]  ? __lock_is_held+0xb5/0x140
[  240.751447]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.756992]  ? check_preemption_disabled+0x48/0x280
[  240.762016]  run_timer_softirq+0x52/0xb0
[  240.766077]  ? rcu_read_lock_sched_held+0x14f/0x180
[  240.771110]  __do_softirq+0x308/0xb7e
[  240.774921]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  240.779416]  ? lock_downgrade+0x900/0x900
[  240.783574]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  240.788688]  ? pvclock_read_flags+0x160/0x160
[  240.793189]  ? lapic_next_event+0x5a/0x90
[  240.797341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.802886]  ? kvm_clock_read+0x18/0x30
[  240.806860]  ? kvm_sched_clock_read+0x9/0x20
[  240.811277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.816820]  ? check_preemption_disabled+0x48/0x280
[  240.821849]  irq_exit+0x17f/0x1c0
[  240.825308]  smp_apic_timer_interrupt+0x1cb/0x760
[  240.830154]  ? smp_reschedule_interrupt+0x109/0x650
[  240.835185]  ? smp_call_function_single_interrupt+0x650/0x650
[  240.841084]  ? interrupt_entry+0xb5/0xc0
[  240.845158]  ? trace_hardirqs_off_caller+0xbb/0x310
[  240.850177]  ? trace_hardirqs_off_caller+0xbb/0x310
[  240.855197]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.860042]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.865061]  ? trace_hardirqs_on_caller+0x310/0x310
[  240.870079]  ? task_prio+0x50/0x50
[  240.873623]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  240.879162]  ? check_preemption_disabled+0x48/0x280
[  240.884187]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  240.889046]  apic_timer_interrupt+0xf/0x20
[  240.893280]  </IRQ>
[  240.895524] RIP: 0010:check_memory_region+0x121/0x1b0
[  240.900717] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  240.919628] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  240.927365] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  240.934631] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  240.941897] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  240.949656] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  240.956941] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  240.964232]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.969526]  kasan_check_read+0x11/0x20
[  240.973500]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  240.978612]  ? rcu_softirq_qs+0x20/0x20
[  240.982596]  rcu_is_watching+0x10/0x30
[  240.986484]  list_lru_count_one+0x362/0x450
[  240.990812]  ? list_lru_isolate_move+0x3c0/0x3c0
[  240.995573]  ? shmem_free_inode+0xd0/0xd0
[  240.999728]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.005280]  ? ubifs_shrink_count+0xc4/0x100
[  241.009696]  super_cache_count+0x153/0x2e0
[  241.013958]  do_shrink_slab+0x1b1/0xd30
[  241.017945]  ? lock_acquire+0x1ed/0x520
[  241.021923]  ? snapshot_refaults+0x290/0x290
[  241.026339]  ? lock_release+0xa00/0xa00
[  241.030319]  ? perf_trace_sched_process_exec+0x860/0x860
[  241.035787]  ? down_read_trylock+0xda/0x140
[  241.040111]  ? shrink_slab+0x207/0x8c0
[  241.044001]  ? downgrade_write+0x270/0x270
[  241.048254]  shrink_slab+0x389/0x8c0
[  241.051969]  ? shrink_active_list+0x1f00/0x1f00
[  241.056649]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  241.062280]  ? kasan_check_read+0x11/0x20
[  241.066426]  ? do_raw_spin_unlock+0xa7/0x330
[  241.070840]  ? ___preempt_schedule+0x16/0x18
[  241.075265]  ? _raw_spin_unlock+0x3f/0x50
[  241.079423]  shrink_node+0x431/0x16b0
[  241.083230]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  241.088543]  ? shrink_node_memcg+0x18f0/0x18f0
[  241.093126]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  241.097710]  ? trace_hardirqs_on+0xbd/0x310
[  241.102044]  ? vmpressure+0x271/0x340
[  241.105854]  ? do_raw_spin_trylock+0x270/0x270
[  241.110443]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  241.115987]  ? __cpuset_node_allowed+0x19b/0x660
[  241.120757]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  241.126474]  ? vmpressure+0x1a2/0x340
[  241.130287]  do_try_to_free_pages+0x3e7/0x1290
[  241.134870]  ? zap_class+0x640/0x640
[  241.138604]  ? shrink_node+0x16b0/0x16b0
[  241.142667]  ? __lock_is_held+0xb5/0x140
[  241.146753]  try_to_free_pages+0x4d0/0xb90
[  241.150994]  ? do_try_to_free_pages+0x1290/0x1290
[  241.155851]  ? lock_acquire+0x1ed/0x520
[  241.159825]  ? set_page_refcounted+0x280/0x280
[  241.164430]  ? lock_release+0xa00/0xa00
[  241.168407]  ? _raw_spin_unlock_irq+0x60/0x80
[  241.172908]  ? psi_memstall_enter+0x240/0x2b0
[  241.177403]  ? psi_memstall_tick+0x230/0x230
[  241.181823]  __alloc_pages_slowpath+0xa14/0x2e10
[  241.186607]  ? warn_alloc+0x120/0x120
[  241.190409]  ? mark_held_locks+0x130/0x130
[  241.194650]  ? find_get_entry+0xaae/0x1120
[  241.198893]  ? filemap_map_pages+0x1a20/0x1a20
[  241.203486]  ? zap_class+0x640/0x640
[  241.207222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  241.212773]  ? check_preemption_disabled+0x48/0x280
[  241.217798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.223356]  ? should_fail+0x22d/0xd01
[  241.227286]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  241.232390]  ? zap_class+0x640/0x640
[  241.236143]  ? __lock_is_held+0xb5/0x140
[  241.240246]  ? mark_held_locks+0x130/0x130
[  241.244484]  ? lock_release+0xa00/0xa00
[  241.248462]  ? perf_trace_sched_process_exec+0x860/0x860
[  241.253918]  ? xa_load+0x2ba/0x460
[  241.257461]  ? lock_downgrade+0x900/0x900
[  241.261654]  ? __might_sleep+0x95/0x190
[  241.265649]  __alloc_pages_nodemask+0xa80/0xde0
[  241.270329]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  241.275360]  ? __page_cache_alloc+0x191/0x5c0
[  241.279858]  ? xa_load+0x2e1/0x460
[  241.283401]  ? xa_clear_mark+0x40/0x40
[  241.287296]  ? zap_class+0x640/0x640
[  241.291022]  ? zap_class+0x640/0x640
[  241.294746]  ? zap_class+0x640/0x640
[  241.298470]  ? __do_page_cache_readahead+0x663/0x810
[  241.303578]  ? find_held_lock+0x36/0x1c0
[  241.307658]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  241.313205]  alloc_pages_current+0x173/0x350
[  241.317623]  __page_cache_alloc+0x38c/0x5c0
[  241.321942]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  241.326874]  ? kasan_check_read+0x11/0x20
[  241.331026]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.336308]  ? generic_perform_write+0x6a0/0x6a0
[  241.341066]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.346611]  ? check_preemption_disabled+0x48/0x280
[  241.351638]  filemap_fault+0x1595/0x25f0
[  241.355712]  ? __lock_page_or_retry+0xa00/0xa00
[  241.360392]  ? mark_held_locks+0x130/0x130
[  241.364641]  ? filemap_map_pages+0xd6b/0x1a20
[  241.369142]  ? lock_downgrade+0x900/0x900
[  241.373291]  ? check_preemption_disabled+0x48/0x280
[  241.378309]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  241.383245]  ? kasan_check_read+0x11/0x20
[  241.387394]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.392675]  ? rcu_softirq_qs+0x20/0x20
[  241.396665]  ? filemap_map_pages+0xd92/0x1a20
[  241.401177]  ? find_get_entries_tag+0x1400/0x1400
[  241.406021]  ? find_held_lock+0x36/0x1c0
[  241.410105]  ? lock_acquire+0x1ed/0x520
[  241.414080]  ? ext4_filemap_fault+0x7a/0xad
[  241.418409]  ? lock_release+0xa00/0xa00
[  241.422398]  ? perf_trace_sched_process_exec+0x860/0x860
[  241.427855]  ? print_usage_bug+0xc0/0xc0
[  241.431933]  ? down_read+0x8d/0x120
[  241.435561]  ? ext4_filemap_fault+0x7a/0xad
[  241.439886]  ? __down_interruptible+0x700/0x700
[  241.444558]  ? find_held_lock+0x36/0x1c0
[  241.448624]  ext4_filemap_fault+0x82/0xad
[  241.452779]  __do_fault+0x100/0x6b0
[  241.456412]  ? lock_downgrade+0x900/0x900
[  241.460567]  ? pmd_devmap_trans_unstable+0x220/0x220
[  241.465704]  ? kasan_check_read+0x11/0x20
[  241.469862]  ? do_raw_spin_unlock+0xa7/0x330
[  241.474280]  ? do_raw_spin_trylock+0x270/0x270
[  241.478879]  __handle_mm_fault+0x3ea0/0x5be0
[  241.483299]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  241.488152]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  241.492756]  ? zap_class+0x640/0x640
[  241.496473]  ? zap_class+0x640/0x640
[  241.500190]  ? __x64_sys_futex+0x53e/0x6a0
[  241.504432]  ? find_held_lock+0x36/0x1c0
[  241.508507]  ? handle_mm_fault+0x42a/0xc70
[  241.512752]  ? lock_downgrade+0x900/0x900
[  241.516906]  ? check_preemption_disabled+0x48/0x280
[  241.521925]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  241.526861]  ? kasan_check_read+0x11/0x20
[  241.531013]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  241.536290]  ? rcu_softirq_qs+0x20/0x20
[  241.540271]  ? trace_hardirqs_off_caller+0x310/0x310
[  241.545398]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  241.550938]  ? check_preemption_disabled+0x48/0x280
[  241.555965]  handle_mm_fault+0x54f/0xc70
[  241.560030]  ? __handle_mm_fault+0x5be0/0x5be0
[  241.564619]  ? find_vma+0x34/0x190
[  241.568169]  __do_page_fault+0x5e8/0xe60
[  241.572264]  ? trace_hardirqs_off+0xb8/0x310
[  241.576685]  do_page_fault+0xf2/0x7e0
[  241.580494]  ? vmalloc_sync_all+0x30/0x30
[  241.584643]  ? error_entry+0x70/0xd0
[  241.588366]  ? trace_hardirqs_off_caller+0xbb/0x310
[  241.593384]  ? trace_hardirqs_on_caller+0xc0/0x310
[  241.598314]  ? syscall_return_slowpath+0x5e0/0x5e0
[  241.603251]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.608096]  ? trace_hardirqs_on_caller+0x310/0x310
[  241.613116]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  241.618576]  ? prepare_exit_to_usermode+0x291/0x3b0
[  241.623593]  ? page_fault+0x8/0x30
[  241.627141]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  241.631989]  ? page_fault+0x8/0x30
[  241.635531]  page_fault+0x1e/0x30
[  241.638985] RIP: 0033:0x404068
[  241.642192] Code: Bad RIP value.
[  241.645556] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  241.650918] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  241.658185] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  241.665454] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  241.672722] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  241.680007] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  241.687306] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  241.687311] warn_alloc_show_mem: 1 callbacks suppressed
[  241.687319] Mem-Info:
[  241.694600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  241.699972] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  241.699972]  active_file:13 inactive_file:28 isolated_file:0
[  241.699972]  unevictable:0 dirty:1 writeback:0 unstable:0
[  241.699972]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  241.699972]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  241.699972]  free:13541 free_pcp:161 free_cma:0
[  241.702345] Call Trace:
[  241.711747] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  241.744774]  <IRQ>
[  241.747347] 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
[  241.775293]  dump_stack+0x244/0x39d
[  241.777409] lowmem_reserve[]: 0 2818 6321 6321
[  241.803532]  ? dump_stack_print_info.cold.1+0x20/0x20
[  241.807130] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  241.811716]  warn_alloc.cold.116+0xb7/0x1bd
[  241.817013] lowmem_reserve[]: 0 0 3503 3503
[  241.844616]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  241.848918] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  241.853235]  ? lock_downgrade+0x900/0x900
[  241.858056] lowmem_reserve[]: 0 0 0 0
[  241.887214]  ? trace_hardirqs_off+0xb8/0x310
[  241.891344] 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
[  241.895150]  ? trace_hardirqs_off+0xb8/0x310
[  241.899527] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  241.913054]  __alloc_pages_slowpath+0x26e8/0x2e10
[  241.917436] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  241.932629]  ? warn_alloc+0x120/0x120
[  241.937434] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  241.951902]  ? print_usage_bug+0xc0/0xc0
[  241.955682] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  241.964505]  ? warn_alloc+0x120/0x120
[  241.968542] 4984 total pagecache pages
[  241.977112]  ? warn_alloc+0x120/0x120
[  241.980899] 0 pages in swap cache
[  241.984783]  ? print_usage_bug+0xc0/0xc0
[  241.988559] Swap cache stats: add 0, delete 0, find 0/0
[  241.992007]  ? kvm_clock_read+0x18/0x30
[  241.996041] Free swap  = 0kB
[  242.001400]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  242.005351] Total swap = 0kB
[  242.008364]  ? print_usage_bug+0xc0/0xc0
[  242.013358] 1965979 pages RAM
[  242.016379]  ? __lock_acquire+0x62f/0x4c20
[  242.020415] 0 pages HighMem/MovableOnly
[  242.023519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.027739] 342853 pages reserved
[  242.031711]  ? should_fail+0x22d/0xd01
[  242.037220] 0 pages cma reserved
[  242.040662]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.044587] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  242.047882]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.053405] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  242.059637]  ? __lock_acquire+0x62f/0x4c20
[  242.064742] syz-fuzzer cpuset=/ mems_allowed=0
[  242.074971]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.088854]  ? __lock_acquire+0x62f/0x4c20
[  242.093088]  ? should_fail+0x22d/0xd01
[  242.096976]  ? rcu_irq_exit+0x1a2/0x390
[  242.100964]  ? mark_held_locks+0x130/0x130
[  242.105209]  ? mark_held_locks+0x130/0x130
[  242.109449]  ? mark_held_locks+0xc7/0x130
[  242.113602]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  242.118620]  ? zap_class+0x640/0x640
[  242.122335]  ? print_usage_bug+0xc0/0xc0
[  242.126449]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.131992]  ? check_preemption_disabled+0x48/0x280
[  242.137019]  ? __lock_is_held+0xb5/0x140
[  242.141088]  __alloc_pages_nodemask+0xa80/0xde0
[  242.145772]  ? zap_class+0x640/0x640
[  242.149497]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  242.154545]  ? find_held_lock+0x36/0x1c0
[  242.158617]  ? ____cache_alloc_node+0x1c7/0x1e0
[  242.163295]  ? lock_downgrade+0x900/0x900
[  242.167454]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.173000]  cache_grow_begin+0xa5/0x8c0
[  242.177066]  ? do_raw_spin_unlock+0xa7/0x330
[  242.181482]  fallback_alloc+0x204/0x2e0
[  242.185509]  ____cache_alloc_node+0x1c7/0x1e0
[  242.190012]  kmem_cache_alloc_node+0xe3/0x730
[  242.194509]  ? ipv6_get_ifaddr+0x42e/0x620
[  242.198769]  __alloc_skb+0x119/0x770
[  242.202486]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.207773]  ? netdev_alloc_frag+0x1f0/0x1f0
[  242.212183]  ? lock_downgrade+0x900/0x900
[  242.216343]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.221886]  ? refcount_sub_and_test_checked+0x203/0x310
[  242.227344]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  242.232802]  ? addrconf_rs_timer+0x690/0x690
[  242.237224]  ndisc_alloc_skb+0x144/0x340
[  242.241292]  ndisc_send_rs+0x331/0x6e0
[  242.245202]  addrconf_rs_timer+0x314/0x690
[  242.249474]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.253725]  call_timer_fn+0x272/0x920
[  242.257633]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.261871]  ? process_timeout+0x40/0x40
[  242.265946]  ? __run_timers+0x7da/0xc70
[  242.269925]  ? _raw_spin_unlock_irq+0x27/0x80
[  242.274421]  ? _raw_spin_unlock_irq+0x27/0x80
[  242.278913]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.283175]  ? lockdep_hardirqs_on+0x296/0x5b0
[  242.287810]  ? trace_hardirqs_on+0xbd/0x310
[  242.292131]  ? kasan_check_read+0x11/0x20
[  242.296281]  ? __run_timers+0x7da/0xc70
[  242.300262]  ? trace_hardirqs_off_caller+0x310/0x310
[  242.305378]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.309624]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  242.313860]  __run_timers+0x7e5/0xc70
[  242.317671]  ? timer_fixup_init+0x70/0x70
[  242.321821]  ? kasan_check_read+0x11/0x20
[  242.325973]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.331252]  ? rcu_softirq_qs+0x20/0x20
[  242.335234]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.340776]  ? check_preemption_disabled+0x48/0x280
[  242.345800]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  242.350559]  ? retint_kernel+0x2d/0x2d
[  242.354449]  ? trace_hardirqs_on_caller+0xc0/0x310
[  242.359379]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  242.364138]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  242.369592]  ? zap_class+0x640/0x640
[  242.373313]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.378854]  ? check_preemption_disabled+0x48/0x280
[  242.383881]  ? __lock_is_held+0xb5/0x140
[  242.387943]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.393482]  ? check_preemption_disabled+0x48/0x280
[  242.398508]  run_timer_softirq+0x52/0xb0
[  242.402570]  ? rcu_read_lock_sched_held+0x14f/0x180
[  242.407599]  __do_softirq+0x308/0xb7e
[  242.411409]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  242.415903]  ? lock_downgrade+0x900/0x900
[  242.420059]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  242.425205]  ? pvclock_read_flags+0x160/0x160
[  242.429704]  ? lapic_next_event+0x5a/0x90
[  242.433867]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.439416]  ? kvm_clock_read+0x18/0x30
[  242.443391]  ? kvm_sched_clock_read+0x9/0x20
[  242.447803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.453348]  ? check_preemption_disabled+0x48/0x280
[  242.458375]  irq_exit+0x17f/0x1c0
[  242.461837]  smp_apic_timer_interrupt+0x1cb/0x760
[  242.466681]  ? smp_reschedule_interrupt+0x109/0x650
[  242.471701]  ? smp_call_function_single_interrupt+0x650/0x650
[  242.477602]  ? interrupt_entry+0xb5/0xc0
[  242.481667]  ? trace_hardirqs_off_caller+0xbb/0x310
[  242.486687]  ? trace_hardirqs_off_caller+0xbb/0x310
[  242.491708]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  242.496567]  ? trace_hardirqs_on_caller+0x310/0x310
[  242.501595]  ? trace_hardirqs_on_caller+0x310/0x310
[  242.506616]  ? task_prio+0x50/0x50
[  242.510161]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.515702]  ? check_preemption_disabled+0x48/0x280
[  242.520749]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  242.525610]  apic_timer_interrupt+0xf/0x20
[  242.529843]  </IRQ>
[  242.532083] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  242.537014] 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
[  242.555923] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  242.563629] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  242.570899] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  242.578169] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  242.585438] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  242.592704] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  242.600025]  skb_clone+0x1bb/0x500
[  242.603628]  ? skb_split+0x11e0/0x11e0
[  242.607521]  ? preempt_notifier_register+0x200/0x200
[  242.612640]  ? __switch_to_asm+0x34/0x70
[  242.616702]  ? __switch_to_asm+0x34/0x70
[  242.620777]  ? __switch_to_asm+0x40/0x70
[  242.624837]  ? __switch_to_asm+0x34/0x70
[  242.628902]  ? __switch_to_asm+0x40/0x70
[  242.632963]  ? __switch_to_asm+0x40/0x70
[  242.637020]  ? __switch_to_asm+0x34/0x70
[  242.641081]  ? __switch_to_asm+0x34/0x70
[  242.645143]  ? __switch_to_asm+0x40/0x70
[  242.649206]  ? __switch_to_asm+0x34/0x70
[  242.653274]  bpf_clone_redirect+0xb9/0x490
[  242.657522]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  242.662547]  ? __sched_text_start+0x8/0x8
[  242.666698]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  242.671469]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  242.676235]  ? find_held_lock+0x36/0x1c0
[  242.680310]  ? lock_acquire+0x1ed/0x520
[  242.684297]  ? bpf_test_run+0x3cb/0x780
[  242.688277]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  242.693830]  ? check_preemption_disabled+0x48/0x280
[  242.698858]  ? kasan_check_read+0x11/0x20
[  242.703008]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  242.708291]  ? rcu_softirq_qs+0x20/0x20
[  242.712269]  ? preempt_schedule+0x4d/0x60
[  242.716420]  ? ___preempt_schedule+0x16/0x18
[  242.720842]  ? bpf_test_run+0x25d/0x780
[  242.724830]  ? netlink_diag_dump+0x2a0/0x2a0
[  242.729247]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.734788]  ? bpf_test_init.isra.10+0x70/0x100
[  242.739466]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  242.744233]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  242.749080]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  242.754642]  ? fput+0x130/0x1a0
[  242.757927]  ? __bpf_prog_get+0x9b/0x290
[  242.761998]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  242.766843]  ? bpf_prog_test_run+0x130/0x1a0
[  242.771258]  ? __x64_sys_bpf+0x3d8/0x520
[  242.775321]  ? bpf_prog_get+0x20/0x20
[  242.779147]  ? do_syscall_64+0x1b9/0x820
[  242.783209]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  242.788577]  ? syscall_return_slowpath+0x5e0/0x5e0
[  242.793516]  ? trace_hardirqs_on_caller+0x310/0x310
[  242.798536]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  242.803561]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  242.810229]  ? __switch_to_asm+0x40/0x70
[  242.814294]  ? __switch_to_asm+0x34/0x70
[  242.818360]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  242.823211]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  242.828593] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  242.828708] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  242.835520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  242.835525] Call Trace:
[  242.835532]  <IRQ>
[  242.835549]  dump_stack+0x244/0x39d
[  242.835569]  ? dump_stack_print_info.cold.1+0x20/0x20
[  242.842133] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  242.851400]  warn_alloc.cold.116+0xb7/0x1bd
[  242.853956] syz-executor4 cpuset=syz4 mems_allowed=0
[  242.856103]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  242.889653]  ? lock_downgrade+0x900/0x900
[  242.893814]  ? trace_hardirqs_off+0xb8/0x310
[  242.898319]  ? trace_hardirqs_off+0xb8/0x310
[  242.902752]  __alloc_pages_slowpath+0x26e8/0x2e10
[  242.907628]  ? warn_alloc+0x120/0x120
[  242.911457]  ? print_usage_bug+0xc0/0xc0
[  242.915521]  ? warn_alloc+0x120/0x120
[  242.919328]  ? warn_alloc+0x120/0x120
[  242.923143]  ? print_usage_bug+0xc0/0xc0
[  242.927202]  ? zap_class+0x640/0x640
[  242.930916]  ? kvm_clock_read+0x18/0x30
[  242.934900]  ? print_usage_bug+0xc0/0xc0
[  242.938961]  ? find_held_lock+0x36/0x1c0
[  242.943041]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  242.949044]  ? should_fail+0x22d/0xd01
[  242.952931]  ? try_to_wake_up+0x11c/0x1490
[  242.957175]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.962283]  ? __lock_acquire+0x62f/0x4c20
[  242.966523]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  242.971631]  ? __lock_acquire+0x62f/0x4c20
[  242.975870]  ? should_fail+0x22d/0xd01
[  242.979775]  ? trace_hardirqs_on+0x310/0x310
[  242.984205]  ? mark_held_locks+0x130/0x130
[  242.988449]  ? mark_held_locks+0x130/0x130
[  242.992688]  ? try_to_wake_up+0x11c/0x1490
[  242.996929]  ? lock_downgrade+0x900/0x900
[  243.001090]  ? zap_class+0x640/0x640
[  243.004809]  ? print_usage_bug+0xc0/0xc0
[  243.008878]  ? kasan_check_read+0x11/0x20
[  243.013032]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.018574]  ? check_preemption_disabled+0x48/0x280
[  243.023602]  ? __lock_is_held+0xb5/0x140
[  243.027675]  __alloc_pages_nodemask+0xa80/0xde0
[  243.032347]  ? zap_class+0x640/0x640
[  243.036066]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  243.041097]  ? find_held_lock+0x36/0x1c0
[  243.045170]  ? ____cache_alloc_node+0x1c7/0x1e0
[  243.049857]  ? lock_downgrade+0x900/0x900
[  243.054018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.059561]  cache_grow_begin+0xa5/0x8c0
[  243.063622]  ? do_raw_spin_unlock+0xa7/0x330
[  243.068045]  fallback_alloc+0x204/0x2e0
[  243.072030]  ____cache_alloc_node+0x1c7/0x1e0
[  243.076532]  kmem_cache_alloc_node+0xe3/0x730
[  243.081032]  ? ipv6_get_ifaddr+0x42e/0x620
[  243.085285]  __alloc_skb+0x119/0x770
[  243.088998]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.094279]  ? netdev_alloc_frag+0x1f0/0x1f0
[  243.098689]  ? lock_downgrade+0x900/0x900
[  243.102851]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.108390]  ? refcount_sub_and_test_checked+0x203/0x310
[  243.113848]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  243.119304]  ? addrconf_rs_timer+0x690/0x690
[  243.123739]  ndisc_alloc_skb+0x144/0x340
[  243.127809]  ndisc_send_rs+0x331/0x6e0
[  243.131708]  addrconf_rs_timer+0x314/0x690
[  243.135959]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.140205]  call_timer_fn+0x272/0x920
[  243.144093]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.148331]  ? process_timeout+0x40/0x40
[  243.152403]  ? mark_held_locks+0xc7/0x130
[  243.156559]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.161053]  ? _raw_spin_unlock_irq+0x27/0x80
[  243.165549]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.169785]  ? lockdep_hardirqs_on+0x296/0x5b0
[  243.174376]  ? trace_hardirqs_on+0xbd/0x310
[  243.178704]  ? kasan_check_read+0x11/0x20
[  243.182861]  ? __run_timers+0x7da/0xc70
[  243.186840]  ? trace_hardirqs_off_caller+0x310/0x310
[  243.192046]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  243.196284]  __run_timers+0x7e5/0xc70
[  243.200099]  ? timer_fixup_init+0x70/0x70
[  243.204286]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  243.209305]  ? zap_class+0x640/0x640
[  243.213024]  ? print_usage_bug+0xc0/0xc0
[  243.217095]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  243.222297]  ? find_held_lock+0x36/0x1c0
[  243.226366]  ? zap_class+0x640/0x640
[  243.230089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.235632]  ? check_preemption_disabled+0x48/0x280
[  243.240660]  ? __lock_is_held+0xb5/0x140
[  243.244726]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.250276]  ? check_preemption_disabled+0x48/0x280
[  243.255302]  run_timer_softirq+0x52/0xb0
[  243.259368]  ? rcu_read_lock_sched_held+0x14f/0x180
[  243.264391]  __do_softirq+0x308/0xb7e
[  243.268201]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  243.272698]  ? lock_downgrade+0x900/0x900
[  243.276856]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  243.281967]  ? pvclock_read_flags+0x160/0x160
[  243.286471]  ? lapic_next_event+0x5a/0x90
[  243.290639]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.296181]  ? kvm_clock_read+0x18/0x30
[  243.300185]  ? kvm_sched_clock_read+0x9/0x20
[  243.304594]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.310135]  ? check_preemption_disabled+0x48/0x280
[  243.315166]  irq_exit+0x17f/0x1c0
[  243.318624]  smp_apic_timer_interrupt+0x1cb/0x760
[  243.323469]  ? smp_reschedule_interrupt+0x109/0x650
[  243.328492]  ? smp_call_function_single_interrupt+0x650/0x650
[  243.334379]  ? interrupt_entry+0xb5/0xc0
[  243.338448]  ? trace_hardirqs_off_caller+0xbb/0x310
[  243.343465]  ? trace_hardirqs_off_caller+0xbb/0x310
[  243.348484]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.353334]  ? trace_hardirqs_on_caller+0x310/0x310
[  243.358352]  ? trace_hardirqs_on_caller+0x310/0x310
[  243.363369]  ? task_prio+0x50/0x50
[  243.366920]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.372461]  ? check_preemption_disabled+0x48/0x280
[  243.377489]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  243.382343]  apic_timer_interrupt+0xf/0x20
[  243.386572]  </IRQ>
[  243.388813] RIP: 0010:check_memory_region+0x121/0x1b0
[  243.394004] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  243.412906] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  243.420618] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  243.427886] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  243.435157] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  243.442425] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  243.449693] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  243.456988]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.462284]  kasan_check_read+0x11/0x20
[  243.466270]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.471380]  ? rcu_softirq_qs+0x20/0x20
[  243.475365]  rcu_is_watching+0x10/0x30
[  243.479259]  list_lru_count_one+0x362/0x450
[  243.483590]  ? list_lru_isolate_move+0x3c0/0x3c0
[  243.488350]  ? shmem_free_inode+0xd0/0xd0
[  243.492506]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.498045]  ? ubifs_shrink_count+0xc4/0x100
[  243.502468]  super_cache_count+0x153/0x2e0
[  243.506708]  do_shrink_slab+0x1b1/0xd30
[  243.510701]  ? lock_acquire+0x1ed/0x520
[  243.514700]  ? snapshot_refaults+0x290/0x290
[  243.519118]  ? lock_release+0xa00/0xa00
[  243.523099]  ? perf_trace_sched_process_exec+0x860/0x860
[  243.528565]  ? down_read_trylock+0xda/0x140
[  243.532885]  ? shrink_slab+0x207/0x8c0
[  243.536780]  ? downgrade_write+0x270/0x270
[  243.541027]  shrink_slab+0x389/0x8c0
[  243.544751]  ? shrink_active_list+0x1f00/0x1f00
[  243.549433]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  243.555063]  ? kasan_check_read+0x11/0x20
[  243.559211]  ? do_raw_spin_unlock+0xa7/0x330
[  243.563640]  ? ___preempt_schedule+0x16/0x18
[  243.568058]  ? _raw_spin_unlock+0x3f/0x50
[  243.572214]  shrink_node+0x431/0x16b0
[  243.576116]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  243.581418]  ? shrink_node_memcg+0x18f0/0x18f0
[  243.586004]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  243.590590]  ? trace_hardirqs_on+0xbd/0x310
[  243.594917]  ? vmpressure+0x271/0x340
[  243.598722]  ? do_raw_spin_trylock+0x270/0x270
[  243.603320]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  243.608859]  ? __cpuset_node_allowed+0x19b/0x660
[  243.613646]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  243.619361]  ? vmpressure+0x1a2/0x340
[  243.623174]  do_try_to_free_pages+0x3e7/0x1290
[  243.627767]  ? zap_class+0x640/0x640
[  243.631503]  ? shrink_node+0x16b0/0x16b0
[  243.635567]  ? __lock_is_held+0xb5/0x140
[  243.639644]  try_to_free_pages+0x4d0/0xb90
[  243.643884]  ? do_try_to_free_pages+0x1290/0x1290
[  243.648749]  ? lock_acquire+0x1ed/0x520
[  243.652729]  ? set_page_refcounted+0x280/0x280
[  243.657330]  ? lock_release+0xa00/0xa00
[  243.661309]  ? _raw_spin_unlock_irq+0x60/0x80
[  243.665809]  ? psi_memstall_enter+0x240/0x2b0
[  243.670308]  ? psi_memstall_tick+0x230/0x230
[  243.674740]  __alloc_pages_slowpath+0xa14/0x2e10
[  243.679530]  ? warn_alloc+0x120/0x120
[  243.683336]  ? mark_held_locks+0x130/0x130
[  243.687580]  ? find_get_entry+0xaae/0x1120
[  243.691831]  ? filemap_map_pages+0x1a20/0x1a20
[  243.696423]  ? zap_class+0x640/0x640
[  243.700146]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  243.705685]  ? check_preemption_disabled+0x48/0x280
[  243.710701]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.716256]  ? should_fail+0x22d/0xd01
[  243.720154]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  243.725265]  ? zap_class+0x640/0x640
[  243.729010]  ? __lock_is_held+0xb5/0x140
[  243.733079]  ? mark_held_locks+0x130/0x130
[  243.737320]  ? lock_release+0xa00/0xa00
[  243.741299]  ? perf_trace_sched_process_exec+0x860/0x860
[  243.746757]  ? xa_load+0x2ba/0x460
[  243.750302]  ? lock_downgrade+0x900/0x900
[  243.754458]  ? __might_sleep+0x95/0x190
[  243.758439]  __alloc_pages_nodemask+0xa80/0xde0
[  243.763121]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  243.768139]  ? __page_cache_alloc+0x191/0x5c0
[  243.772639]  ? xa_load+0x2e1/0x460
[  243.776189]  ? xa_clear_mark+0x40/0x40
[  243.780080]  ? zap_class+0x640/0x640
[  243.783802]  ? zap_class+0x640/0x640
[  243.787515]  ? zap_class+0x640/0x640
[  243.791234]  ? __do_page_cache_readahead+0x663/0x810
[  243.796348]  ? find_held_lock+0x36/0x1c0
[  243.800414]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  243.805960]  alloc_pages_current+0x173/0x350
[  243.810381]  __page_cache_alloc+0x38c/0x5c0
[  243.814879]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  243.819812]  ? kasan_check_read+0x11/0x20
[  243.823963]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.829261]  ? generic_perform_write+0x6a0/0x6a0
[  243.834018]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  243.839559]  ? check_preemption_disabled+0x48/0x280
[  243.844588]  filemap_fault+0x1595/0x25f0
[  243.848668]  ? __lock_page_or_retry+0xa00/0xa00
[  243.853340]  ? mark_held_locks+0x130/0x130
[  243.857588]  ? filemap_map_pages+0xd6b/0x1a20
[  243.862087]  ? lock_downgrade+0x900/0x900
[  243.866272]  ? check_preemption_disabled+0x48/0x280
[  243.871308]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  243.876248]  ? kasan_check_read+0x11/0x20
[  243.880397]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  243.885675]  ? rcu_softirq_qs+0x20/0x20
[  243.889664]  ? filemap_map_pages+0xd92/0x1a20
[  243.894175]  ? find_get_entries_tag+0x1400/0x1400
[  243.899017]  ? find_held_lock+0x36/0x1c0
[  243.903101]  ? lock_acquire+0x1ed/0x520
[  243.907074]  ? ext4_filemap_fault+0x7a/0xad
[  243.911402]  ? lock_release+0xa00/0xa00
[  243.915378]  ? perf_trace_sched_process_exec+0x860/0x860
[  243.920846]  ? print_usage_bug+0xc0/0xc0
[  243.924927]  ? down_read+0x8d/0x120
[  243.928567]  ? ext4_filemap_fault+0x7a/0xad
[  243.932893]  ? __down_interruptible+0x700/0x700
[  243.937565]  ? find_held_lock+0x36/0x1c0
[  243.941636]  ext4_filemap_fault+0x82/0xad
[  243.945788]  __do_fault+0x100/0x6b0
[  243.949419]  ? lock_downgrade+0x900/0x900
[  243.953568]  ? pmd_devmap_trans_unstable+0x220/0x220
[  243.958683]  ? kasan_check_read+0x11/0x20
[  243.962844]  ? do_raw_spin_unlock+0xa7/0x330
[  243.967257]  ? do_raw_spin_trylock+0x270/0x270
[  243.971855]  __handle_mm_fault+0x3ea0/0x5be0
[  243.976279]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  243.981134]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  243.985744]  ? zap_class+0x640/0x640
[  243.989465]  ? zap_class+0x640/0x640
[  243.993180]  ? __x64_sys_futex+0x53e/0x6a0
[  243.997419]  ? find_held_lock+0x36/0x1c0
[  244.001492]  ? handle_mm_fault+0x42a/0xc70
[  244.005743]  ? lock_downgrade+0x900/0x900
[  244.009899]  ? check_preemption_disabled+0x48/0x280
[  244.014923]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  244.019857]  ? kasan_check_read+0x11/0x20
[  244.024005]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.029283]  ? rcu_softirq_qs+0x20/0x20
[  244.033263]  ? trace_hardirqs_off_caller+0x310/0x310
[  244.038370]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.043935]  ? check_preemption_disabled+0x48/0x280
[  244.048960]  handle_mm_fault+0x54f/0xc70
[  244.053044]  ? __handle_mm_fault+0x5be0/0x5be0
[  244.057632]  ? find_vma+0x34/0x190
[  244.061178]  __do_page_fault+0x5e8/0xe60
[  244.065248]  ? trace_hardirqs_off+0xb8/0x310
[  244.069673]  do_page_fault+0xf2/0x7e0
[  244.073476]  ? vmalloc_sync_all+0x30/0x30
[  244.077655]  ? error_entry+0x70/0xd0
[  244.081403]  ? trace_hardirqs_off_caller+0xbb/0x310
[  244.086419]  ? trace_hardirqs_on_caller+0xc0/0x310
[  244.091351]  ? syscall_return_slowpath+0x5e0/0x5e0
[  244.096306]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  244.101151]  ? trace_hardirqs_on_caller+0x310/0x310
[  244.106166]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  244.111622]  ? prepare_exit_to_usermode+0x291/0x3b0
[  244.116641]  ? page_fault+0x8/0x30
[  244.120190]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  244.125037]  ? page_fault+0x8/0x30
[  244.128577]  page_fault+0x1e/0x30
[  244.132028] RIP: 0033:0x404068
[  244.135235] Code: Bad RIP value.
[  244.138618] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  244.143977] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  244.151253] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  244.158520] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  244.165790] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  244.173062] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  244.180362] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  244.180367] warn_alloc_show_mem: 1 callbacks suppressed
[  244.180374] Mem-Info:
[  244.187653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  244.193020] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  244.193020]  active_file:13 inactive_file:28 isolated_file:0
[  244.193020]  unevictable:0 dirty:1 writeback:0 unstable:0
[  244.193020]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  244.193020]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  244.193020]  free:13541 free_pcp:161 free_cma:0
[  244.195392] Call Trace:
[  244.204796] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  244.237815]  <IRQ>
[  244.240390] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  244.268321]  dump_stack+0x244/0x39d
[  244.270448] lowmem_reserve[]: 0 2818 6321 6321
[  244.296552]  ? dump_stack_print_info.cold.1+0x20/0x20
[  244.300151] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  244.304751]  warn_alloc.cold.116+0xb7/0x1bd
[  244.309909] lowmem_reserve[]: 0 0 3503 3503
[  244.337492]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  244.341789] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  244.346109]  ? lock_downgrade+0x900/0x900
[  244.350923] lowmem_reserve[]: 0 0 0 0
[  244.380073]  ? trace_hardirqs_off+0xb8/0x310
[  244.384196] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  244.387991]  ? trace_hardirqs_off+0xb8/0x310
[  244.392375] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  244.407288]  __alloc_pages_slowpath+0x26e8/0x2e10
[  244.411672] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  244.426858]  ? warn_alloc+0x120/0x120
[  244.431662] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  244.446126]  ? print_usage_bug+0xc0/0xc0
[  244.449905] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  244.458724]  ? warn_alloc+0x120/0x120
[  244.462775] 4984 total pagecache pages
[  244.471341]  ? warn_alloc+0x120/0x120
[  244.475124] 0 pages in swap cache
[  244.479000]  ? print_usage_bug+0xc0/0xc0
[  244.482869] Swap cache stats: add 0, delete 0, find 0/0
[  244.486313]  ? kvm_clock_read+0x18/0x30
[  244.490366] Free swap  = 0kB
[  244.495727]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  244.499682] Total swap = 0kB
[  244.502695]  ? print_usage_bug+0xc0/0xc0
[  244.507686] 1965979 pages RAM
[  244.510696]  ? __lock_acquire+0x62f/0x4c20
[  244.514740] 0 pages HighMem/MovableOnly
[  244.517878]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  244.522091] 342853 pages reserved
[  244.526057]  ? should_fail+0x22d/0xd01
[  244.531570] 0 pages cma reserved
[  244.535015]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.538945] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  244.542238]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  244.542253]  ? __lock_acquire+0x62f/0x4c20
[  244.542273]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  244.547591] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  244.554018]  ? __lock_acquire+0x62f/0x4c20
[  244.559096] syz-fuzzer cpuset=/ mems_allowed=0
[  244.563328]  ? should_fail+0x22d/0xd01
[  244.591336]  ? rcu_irq_exit+0x1a2/0x390
[  244.595344]  ? mark_held_locks+0x130/0x130
[  244.599583]  ? mark_held_locks+0x130/0x130
[  244.603828]  ? mark_held_locks+0xc7/0x130
[  244.607982]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  244.612998]  ? zap_class+0x640/0x640
[  244.616713]  ? print_usage_bug+0xc0/0xc0
[  244.620793]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.626333]  ? check_preemption_disabled+0x48/0x280
[  244.631373]  ? __lock_is_held+0xb5/0x140
[  244.635446]  __alloc_pages_nodemask+0xa80/0xde0
[  244.640121]  ? zap_class+0x640/0x640
[  244.643845]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  244.648876]  ? find_held_lock+0x36/0x1c0
[  244.652954]  ? ____cache_alloc_node+0x1c7/0x1e0
[  244.657631]  ? lock_downgrade+0x900/0x900
[  244.661792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.667379]  cache_grow_begin+0xa5/0x8c0
[  244.671471]  ? do_raw_spin_unlock+0xa7/0x330
[  244.675889]  fallback_alloc+0x204/0x2e0
[  244.679870]  ____cache_alloc_node+0x1c7/0x1e0
[  244.684372]  kmem_cache_alloc_node+0xe3/0x730
[  244.688868]  ? ipv6_get_ifaddr+0x42e/0x620
[  244.693115]  __alloc_skb+0x119/0x770
[  244.696827]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.702112]  ? netdev_alloc_frag+0x1f0/0x1f0
[  244.706520]  ? lock_downgrade+0x900/0x900
[  244.710681]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.716218]  ? refcount_sub_and_test_checked+0x203/0x310
[  244.721674]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  244.727130]  ? addrconf_rs_timer+0x690/0x690
[  244.731558]  ndisc_alloc_skb+0x144/0x340
[  244.735626]  ndisc_send_rs+0x331/0x6e0
[  244.739521]  addrconf_rs_timer+0x314/0x690
[  244.743772]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  244.748024]  call_timer_fn+0x272/0x920
[  244.751917]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  244.756151]  ? process_timeout+0x40/0x40
[  244.760220]  ? __run_timers+0x7da/0xc70
[  244.764198]  ? _raw_spin_unlock_irq+0x27/0x80
[  244.768695]  ? _raw_spin_unlock_irq+0x27/0x80
[  244.773193]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  244.777464]  ? lockdep_hardirqs_on+0x296/0x5b0
[  244.782049]  ? trace_hardirqs_on+0xbd/0x310
[  244.786380]  ? kasan_check_read+0x11/0x20
[  244.790531]  ? __run_timers+0x7da/0xc70
[  244.794506]  ? trace_hardirqs_off_caller+0x310/0x310
[  244.799618]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  244.803860]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  244.808094]  __run_timers+0x7e5/0xc70
[  244.811908]  ? timer_fixup_init+0x70/0x70
[  244.816061]  ? kasan_check_read+0x11/0x20
[  244.820213]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  244.825495]  ? rcu_softirq_qs+0x20/0x20
[  244.829488]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.835026]  ? check_preemption_disabled+0x48/0x280
[  244.840049]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  244.844819]  ? retint_kernel+0x2d/0x2d
[  244.848711]  ? trace_hardirqs_on_caller+0xc0/0x310
[  244.853675]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  244.858446]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  244.863912]  ? zap_class+0x640/0x640
[  244.867661]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.873200]  ? check_preemption_disabled+0x48/0x280
[  244.878231]  ? __lock_is_held+0xb5/0x140
[  244.882296]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.887845]  ? check_preemption_disabled+0x48/0x280
[  244.892867]  run_timer_softirq+0x52/0xb0
[  244.896930]  ? rcu_read_lock_sched_held+0x14f/0x180
[  244.901953]  __do_softirq+0x308/0xb7e
[  244.905783]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  244.910312]  ? lock_downgrade+0x900/0x900
[  244.914469]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  244.919580]  ? pvclock_read_flags+0x160/0x160
[  244.924080]  ? lapic_next_event+0x5a/0x90
[  244.928246]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.933797]  ? kvm_clock_read+0x18/0x30
[  244.937778]  ? kvm_sched_clock_read+0x9/0x20
[  244.942192]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  244.947922]  ? check_preemption_disabled+0x48/0x280
[  244.952950]  irq_exit+0x17f/0x1c0
[  244.956412]  smp_apic_timer_interrupt+0x1cb/0x760
[  244.961255]  ? smp_reschedule_interrupt+0x109/0x650
[  244.966275]  ? smp_call_function_single_interrupt+0x650/0x650
[  244.972159]  ? interrupt_entry+0xb5/0xc0
[  244.976225]  ? trace_hardirqs_off_caller+0xbb/0x310
[  244.981248]  ? trace_hardirqs_off_caller+0xbb/0x310
[  244.986271]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  244.991115]  ? trace_hardirqs_on_caller+0x310/0x310
[  244.996136]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.001157]  ? task_prio+0x50/0x50
[  245.004702]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.010253]  ? check_preemption_disabled+0x48/0x280
[  245.015291]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.020174]  apic_timer_interrupt+0xf/0x20
[  245.024405]  </IRQ>
[  245.026680] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  245.031614] 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
[  245.050527] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  245.058238] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  245.065505] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  245.072772] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  245.080040] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  245.087307] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  245.094612]  skb_clone+0x1bb/0x500
[  245.098155]  ? skb_split+0x11e0/0x11e0
[  245.102051]  ? preempt_notifier_register+0x200/0x200
[  245.107151]  ? __switch_to_asm+0x34/0x70
[  245.111214]  ? __switch_to_asm+0x34/0x70
[  245.115272]  ? __switch_to_asm+0x40/0x70
[  245.119332]  ? __switch_to_asm+0x34/0x70
[  245.123390]  ? __switch_to_asm+0x40/0x70
[  245.127452]  ? __switch_to_asm+0x40/0x70
[  245.131511]  ? __switch_to_asm+0x34/0x70
[  245.135572]  ? __switch_to_asm+0x34/0x70
[  245.139633]  ? __switch_to_asm+0x40/0x70
[  245.143693]  ? __switch_to_asm+0x34/0x70
[  245.147767]  bpf_clone_redirect+0xb9/0x490
[  245.152015]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  245.157035]  ? __sched_text_start+0x8/0x8
[  245.161186]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  245.165952]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  245.170715]  ? find_held_lock+0x36/0x1c0
[  245.174796]  ? lock_acquire+0x1ed/0x520
[  245.178780]  ? bpf_test_run+0x3cb/0x780
[  245.182771]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.188313]  ? check_preemption_disabled+0x48/0x280
[  245.193338]  ? kasan_check_read+0x11/0x20
[  245.197490]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.202775]  ? rcu_softirq_qs+0x20/0x20
[  245.206767]  ? preempt_schedule+0x4d/0x60
[  245.210918]  ? ___preempt_schedule+0x16/0x18
[  245.215335]  ? bpf_test_run+0x25d/0x780
[  245.219324]  ? netlink_diag_dump+0x2a0/0x2a0
[  245.223798]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.229336]  ? bpf_test_init.isra.10+0x70/0x100
[  245.234011]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  245.238785]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  245.243638]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  245.249179]  ? fput+0x130/0x1a0
[  245.252460]  ? __bpf_prog_get+0x9b/0x290
[  245.256528]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  245.261370]  ? bpf_prog_test_run+0x130/0x1a0
[  245.265784]  ? __x64_sys_bpf+0x3d8/0x520
[  245.269844]  ? bpf_prog_get+0x20/0x20
[  245.273667]  ? do_syscall_64+0x1b9/0x820
[  245.277729]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  245.283111]  ? syscall_return_slowpath+0x5e0/0x5e0
[  245.288047]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.293068]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  245.298090]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  245.304773]  ? __switch_to_asm+0x40/0x70
[  245.308831]  ? __switch_to_asm+0x34/0x70
[  245.312902]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.317766]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  245.323150] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  245.323222] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  245.330087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  245.330093] Call Trace:
[  245.330100]  <IRQ>
[  245.330117]  dump_stack+0x244/0x39d
[  245.330137]  ? dump_stack_print_info.cold.1+0x20/0x20
[  245.336666] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  245.345965]  warn_alloc.cold.116+0xb7/0x1bd
[  245.348519] syz-executor4 cpuset=syz4 mems_allowed=0
[  245.350667]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  245.384161]  ? lock_downgrade+0x900/0x900
[  245.388322]  ? trace_hardirqs_off+0xb8/0x310
[  245.392761]  ? trace_hardirqs_off+0xb8/0x310
[  245.397183]  __alloc_pages_slowpath+0x26e8/0x2e10
[  245.402058]  ? warn_alloc+0x120/0x120
[  245.405866]  ? print_usage_bug+0xc0/0xc0
[  245.409933]  ? warn_alloc+0x120/0x120
[  245.413747]  ? warn_alloc+0x120/0x120
[  245.417554]  ? print_usage_bug+0xc0/0xc0
[  245.421622]  ? print_usage_bug+0xc0/0xc0
[  245.425685]  ? __lock_acquire+0x62f/0x4c20
[  245.429929]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.435471]  ? should_fail+0x22d/0xd01
[  245.439371]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  245.444481]  ? __lock_acquire+0x62f/0x4c20
[  245.448724]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  245.453836]  ? __lock_acquire+0x62f/0x4c20
[  245.458071]  ? should_fail+0x22d/0xd01
[  245.461961]  ? find_held_lock+0x36/0x1c0
[  245.466040]  ? mark_held_locks+0x130/0x130
[  245.470289]  ? mark_held_locks+0x130/0x130
[  245.474523]  ? zap_class+0x640/0x640
[  245.478249]  ? zap_class+0x640/0x640
[  245.481971]  ? print_usage_bug+0xc0/0xc0
[  245.486049]  ? do_raw_spin_unlock+0xa7/0x330
[  245.490459]  ? zap_class+0x640/0x640
[  245.494175]  ? print_usage_bug+0xc0/0xc0
[  245.498239]  ? wq_watchdog_touch+0x9c/0xfe
[  245.502499]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.508039]  ? check_preemption_disabled+0x48/0x280
[  245.513071]  ? __lock_is_held+0xb5/0x140
[  245.517140]  __alloc_pages_nodemask+0xa80/0xde0
[  245.521819]  ? zap_class+0x640/0x640
[  245.525544]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  245.530572]  ? find_held_lock+0x36/0x1c0
[  245.534646]  ? ____cache_alloc_node+0x1c7/0x1e0
[  245.539316]  ? lock_downgrade+0x900/0x900
[  245.543471]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.549019]  cache_grow_begin+0xa5/0x8c0
[  245.553081]  ? do_raw_spin_unlock+0xa7/0x330
[  245.557499]  fallback_alloc+0x204/0x2e0
[  245.561482]  ____cache_alloc_node+0x1c7/0x1e0
[  245.565988]  kmem_cache_alloc_node+0xe3/0x730
[  245.570491]  ? ipv6_get_ifaddr+0x42e/0x620
[  245.574769]  __alloc_skb+0x119/0x770
[  245.578486]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.583775]  ? netdev_alloc_frag+0x1f0/0x1f0
[  245.588186]  ? lock_downgrade+0x900/0x900
[  245.592345]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.597889]  ? refcount_sub_and_test_checked+0x203/0x310
[  245.603344]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  245.608795]  ? addrconf_rs_timer+0x690/0x690
[  245.613218]  ndisc_alloc_skb+0x144/0x340
[  245.617292]  ndisc_send_rs+0x331/0x6e0
[  245.621190]  addrconf_rs_timer+0x314/0x690
[  245.625430]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.629679]  call_timer_fn+0x272/0x920
[  245.633569]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.637805]  ? process_timeout+0x40/0x40
[  245.641883]  ? mark_held_locks+0xc7/0x130
[  245.646038]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.650537]  ? _raw_spin_unlock_irq+0x27/0x80
[  245.655031]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.659270]  ? lockdep_hardirqs_on+0x296/0x5b0
[  245.663863]  ? trace_hardirqs_on+0xbd/0x310
[  245.668187]  ? kasan_check_read+0x11/0x20
[  245.672333]  ? __run_timers+0x7da/0xc70
[  245.676308]  ? trace_hardirqs_off_caller+0x310/0x310
[  245.681416]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.685659]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  245.689892]  __run_timers+0x7e5/0xc70
[  245.693702]  ? timer_fixup_init+0x70/0x70
[  245.697870]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  245.702888]  ? zap_class+0x640/0x640
[  245.706612]  ? print_usage_bug+0xc0/0xc0
[  245.710679]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  245.715880]  ? find_held_lock+0x36/0x1c0
[  245.719949]  ? zap_class+0x640/0x640
[  245.723673]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.729214]  ? check_preemption_disabled+0x48/0x280
[  245.734249]  ? __lock_is_held+0xb5/0x140
[  245.738314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.743862]  ? check_preemption_disabled+0x48/0x280
[  245.748888]  run_timer_softirq+0x52/0xb0
[  245.752949]  ? rcu_read_lock_sched_held+0x14f/0x180
[  245.757971]  __do_softirq+0x308/0xb7e
[  245.761780]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  245.766278]  ? lock_downgrade+0x900/0x900
[  245.770455]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  245.775571]  ? pvclock_read_flags+0x160/0x160
[  245.780071]  ? lapic_next_event+0x5a/0x90
[  245.784227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.789775]  ? kvm_clock_read+0x18/0x30
[  245.793758]  ? kvm_sched_clock_read+0x9/0x20
[  245.798175]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.803716]  ? check_preemption_disabled+0x48/0x280
[  245.808769]  irq_exit+0x17f/0x1c0
[  245.812226]  smp_apic_timer_interrupt+0x1cb/0x760
[  245.817339]  ? smp_reschedule_interrupt+0x109/0x650
[  245.822402]  ? smp_call_function_single_interrupt+0x650/0x650
[  245.828290]  ? interrupt_entry+0xb5/0xc0
[  245.832356]  ? trace_hardirqs_off_caller+0xbb/0x310
[  245.837381]  ? trace_hardirqs_off_caller+0xbb/0x310
[  245.842403]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.847254]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.852279]  ? trace_hardirqs_on_caller+0x310/0x310
[  245.857299]  ? task_prio+0x50/0x50
[  245.860847]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  245.866392]  ? check_preemption_disabled+0x48/0x280
[  245.871415]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  245.876284]  apic_timer_interrupt+0xf/0x20
[  245.880516]  </IRQ>
[  245.882763] RIP: 0010:check_memory_region+0x121/0x1b0
[  245.887959] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  245.906864] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  245.914570] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  245.922017] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  245.929285] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  245.936558] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  245.943824] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  245.951113]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.956402]  kasan_check_read+0x11/0x20
[  245.960376]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  245.965480]  ? rcu_softirq_qs+0x20/0x20
[  245.969463]  rcu_is_watching+0x10/0x30
[  245.973367]  list_lru_count_one+0x362/0x450
[  245.977706]  ? list_lru_isolate_move+0x3c0/0x3c0
[  245.982468]  ? shmem_free_inode+0xd0/0xd0
[  245.986624]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  245.992163]  ? ubifs_shrink_count+0xc4/0x100
[  245.996581]  super_cache_count+0x153/0x2e0
[  246.000820]  do_shrink_slab+0x1b1/0xd30
[  246.004803]  ? lock_acquire+0x1ed/0x520
[  246.008784]  ? snapshot_refaults+0x290/0x290
[  246.013194]  ? lock_release+0xa00/0xa00
[  246.017194]  ? perf_trace_sched_process_exec+0x860/0x860
[  246.022706]  ? down_read_trylock+0xda/0x140
[  246.027034]  ? shrink_slab+0x207/0x8c0
[  246.030925]  ? downgrade_write+0x270/0x270
[  246.035175]  shrink_slab+0x389/0x8c0
[  246.038891]  ? shrink_active_list+0x1f00/0x1f00
[  246.043570]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  246.049204]  ? kasan_check_read+0x11/0x20
[  246.053398]  ? do_raw_spin_unlock+0xa7/0x330
[  246.057813]  ? ___preempt_schedule+0x16/0x18
[  246.062267]  ? _raw_spin_unlock+0x3f/0x50
[  246.066433]  shrink_node+0x431/0x16b0
[  246.070258]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  246.075591]  ? shrink_node_memcg+0x18f0/0x18f0
[  246.080173]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  246.084772]  ? trace_hardirqs_on+0xbd/0x310
[  246.089094]  ? vmpressure+0x271/0x340
[  246.092899]  ? do_raw_spin_trylock+0x270/0x270
[  246.097487]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  246.103028]  ? __cpuset_node_allowed+0x19b/0x660
[  246.107792]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  246.113503]  ? vmpressure+0x1a2/0x340
[  246.117318]  do_try_to_free_pages+0x3e7/0x1290
[  246.121902]  ? zap_class+0x640/0x640
[  246.125633]  ? shrink_node+0x16b0/0x16b0
[  246.129698]  ? __lock_is_held+0xb5/0x140
[  246.133782]  try_to_free_pages+0x4d0/0xb90
[  246.138028]  ? do_try_to_free_pages+0x1290/0x1290
[  246.142885]  ? lock_acquire+0x1ed/0x520
[  246.146861]  ? set_page_refcounted+0x280/0x280
[  246.151450]  ? lock_release+0xa00/0xa00
[  246.155427]  ? _raw_spin_unlock_irq+0x60/0x80
[  246.159923]  ? psi_memstall_enter+0x240/0x2b0
[  246.164422]  ? psi_memstall_tick+0x230/0x230
[  246.168849]  __alloc_pages_slowpath+0xa14/0x2e10
[  246.173644]  ? warn_alloc+0x120/0x120
[  246.177448]  ? mark_held_locks+0x130/0x130
[  246.181689]  ? find_get_entry+0xaae/0x1120
[  246.185936]  ? filemap_map_pages+0x1a20/0x1a20
[  246.190527]  ? zap_class+0x640/0x640
[  246.194286]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  246.199825]  ? check_preemption_disabled+0x48/0x280
[  246.204848]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.210416]  ? should_fail+0x22d/0xd01
[  246.214322]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  246.219446]  ? zap_class+0x640/0x640
[  246.223219]  ? __lock_is_held+0xb5/0x140
[  246.227335]  ? mark_held_locks+0x130/0x130
[  246.231588]  ? lock_release+0xa00/0xa00
[  246.235593]  ? perf_trace_sched_process_exec+0x860/0x860
[  246.241043]  ? xa_load+0x2ba/0x460
[  246.244608]  ? lock_downgrade+0x900/0x900
[  246.248766]  ? __might_sleep+0x95/0x190
[  246.252756]  __alloc_pages_nodemask+0xa80/0xde0
[  246.257440]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  246.262459]  ? __page_cache_alloc+0x191/0x5c0
[  246.266953]  ? xa_load+0x2e1/0x460
[  246.270499]  ? xa_clear_mark+0x40/0x40
[  246.274388]  ? zap_class+0x640/0x640
[  246.278111]  ? zap_class+0x640/0x640
[  246.281826]  ? zap_class+0x640/0x640
[  246.285544]  ? __do_page_cache_readahead+0x663/0x810
[  246.290654]  ? find_held_lock+0x36/0x1c0
[  246.294722]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  246.300280]  alloc_pages_current+0x173/0x350
[  246.304700]  __page_cache_alloc+0x38c/0x5c0
[  246.309029]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  246.313962]  ? kasan_check_read+0x11/0x20
[  246.318108]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.323390]  ? generic_perform_write+0x6a0/0x6a0
[  246.328149]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.333691]  ? check_preemption_disabled+0x48/0x280
[  246.338718]  filemap_fault+0x1595/0x25f0
[  246.342816]  ? __lock_page_or_retry+0xa00/0xa00
[  246.347491]  ? mark_held_locks+0x130/0x130
[  246.351744]  ? filemap_map_pages+0xd6b/0x1a20
[  246.356282]  ? lock_downgrade+0x900/0x900
[  246.360431]  ? check_preemption_disabled+0x48/0x280
[  246.365451]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  246.370383]  ? kasan_check_read+0x11/0x20
[  246.374537]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.379816]  ? rcu_softirq_qs+0x20/0x20
[  246.383804]  ? filemap_map_pages+0xd92/0x1a20
[  246.388319]  ? find_get_entries_tag+0x1400/0x1400
[  246.393165]  ? find_held_lock+0x36/0x1c0
[  246.397252]  ? lock_acquire+0x1ed/0x520
[  246.401226]  ? ext4_filemap_fault+0x7a/0xad
[  246.405563]  ? lock_release+0xa00/0xa00
[  246.409537]  ? perf_trace_sched_process_exec+0x860/0x860
[  246.414989]  ? print_usage_bug+0xc0/0xc0
[  246.419066]  ? down_read+0x8d/0x120
[  246.422696]  ? ext4_filemap_fault+0x7a/0xad
[  246.427022]  ? __down_interruptible+0x700/0x700
[  246.431693]  ? find_held_lock+0x36/0x1c0
[  246.435770]  ext4_filemap_fault+0x82/0xad
[  246.439924]  __do_fault+0x100/0x6b0
[  246.443555]  ? lock_downgrade+0x900/0x900
[  246.447811]  ? pmd_devmap_trans_unstable+0x220/0x220
[  246.452921]  ? kasan_check_read+0x11/0x20
[  246.457069]  ? do_raw_spin_unlock+0xa7/0x330
[  246.461480]  ? do_raw_spin_trylock+0x270/0x270
[  246.466089]  __handle_mm_fault+0x3ea0/0x5be0
[  246.470510]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  246.475366]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  246.479966]  ? zap_class+0x640/0x640
[  246.483683]  ? zap_class+0x640/0x640
[  246.487396]  ? __x64_sys_futex+0x53e/0x6a0
[  246.491674]  ? find_held_lock+0x36/0x1c0
[  246.495766]  ? handle_mm_fault+0x42a/0xc70
[  246.500014]  ? lock_downgrade+0x900/0x900
[  246.504164]  ? check_preemption_disabled+0x48/0x280
[  246.509189]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  246.514122]  ? kasan_check_read+0x11/0x20
[  246.518272]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  246.523552]  ? rcu_softirq_qs+0x20/0x20
[  246.527539]  ? trace_hardirqs_off_caller+0x310/0x310
[  246.532645]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.538183]  ? check_preemption_disabled+0x48/0x280
[  246.543298]  handle_mm_fault+0x54f/0xc70
[  246.547368]  ? __handle_mm_fault+0x5be0/0x5be0
[  246.551957]  ? find_vma+0x34/0x190
[  246.555504]  __do_page_fault+0x5e8/0xe60
[  246.559566]  ? trace_hardirqs_off+0xb8/0x310
[  246.563989]  do_page_fault+0xf2/0x7e0
[  246.567798]  ? vmalloc_sync_all+0x30/0x30
[  246.571952]  ? error_entry+0x70/0xd0
[  246.575674]  ? trace_hardirqs_off_caller+0xbb/0x310
[  246.580691]  ? trace_hardirqs_on_caller+0xc0/0x310
[  246.585624]  ? syscall_return_slowpath+0x5e0/0x5e0
[  246.590558]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.595405]  ? trace_hardirqs_on_caller+0x310/0x310
[  246.600425]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  246.605886]  ? prepare_exit_to_usermode+0x291/0x3b0
[  246.610906]  ? page_fault+0x8/0x30
[  246.614451]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  246.619296]  ? page_fault+0x8/0x30
[  246.622839]  page_fault+0x1e/0x30
[  246.626290] RIP: 0033:0x404068
[  246.629500] Code: Bad RIP value.
[  246.632861] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  246.638222] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  246.645492] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  246.652760] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  246.660028] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  246.667295] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  246.674590] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  246.674595] warn_alloc_show_mem: 1 callbacks suppressed
[  246.674603] Mem-Info:
[  246.681880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  246.687263] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  246.687263]  active_file:13 inactive_file:28 isolated_file:0
[  246.687263]  unevictable:0 dirty:1 writeback:0 unstable:0
[  246.687263]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  246.687263]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  246.687263]  free:13541 free_pcp:161 free_cma:0
[  246.689630] Call Trace:
[  246.699020] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  246.732034]  <IRQ>
[  246.734608] 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
[  246.762532]  dump_stack+0x244/0x39d
[  246.764659] lowmem_reserve[]: 0 2818 6321 6321
[  246.790773]  ? dump_stack_print_info.cold.1+0x20/0x20
[  246.794377] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  246.798961]  warn_alloc.cold.116+0xb7/0x1bd
[  246.804120] lowmem_reserve[]: 0 0 3503 3503
[  246.831704]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  246.836001] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  246.840318]  ? lock_downgrade+0x900/0x900
[  246.845135] lowmem_reserve[]: 0 0 0 0
[  246.874288]  ? trace_hardirqs_off+0xb8/0x310
[  246.878427] 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
[  246.882222]  ? trace_hardirqs_off+0xb8/0x310
[  246.886604] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  246.900128]  __alloc_pages_slowpath+0x26e8/0x2e10
[  246.904516] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  246.919707]  ? warn_alloc+0x120/0x120
[  246.924512] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  246.938982]  ? print_usage_bug+0xc0/0xc0
[  246.942765] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  246.951711]  ? warn_alloc+0x120/0x120
[  246.955761] 4984 total pagecache pages
[  246.964332]  ? warn_alloc+0x120/0x120
[  246.968114] 0 pages in swap cache
[  246.971988]  ? print_usage_bug+0xc0/0xc0
[  246.975767] Swap cache stats: add 0, delete 0, find 0/0
[  246.979210]  ? print_usage_bug+0xc0/0xc0
[  246.983250] Free swap  = 0kB
[  246.988605]  ? __lock_acquire+0x62f/0x4c20
[  246.992641] Total swap = 0kB
[  246.995654]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  246.999864] 1965979 pages RAM
[  247.002876]  ? should_fail+0x22d/0xd01
[  247.008386] 0 pages HighMem/MovableOnly
[  247.011487]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.015348] 342853 pages reserved
[  247.019319]  ? __lock_acquire+0x62f/0x4c20
[  247.024398] 0 pages cma reserved
[  247.027850]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.032129] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  247.035416]  ? __lock_acquire+0x62f/0x4c20
[  247.035432]  ? should_fail+0x22d/0xd01
[  247.040608] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  247.047007]  ? find_held_lock+0x36/0x1c0
[  247.051219] syz-fuzzer cpuset=/ mems_allowed=0
[  247.055590]  ? mark_held_locks+0x130/0x130
[  247.078638]  ? mark_held_locks+0x130/0x130
[  247.082873]  ? zap_class+0x640/0x640
[  247.086592]  ? zap_class+0x640/0x640
[  247.090310]  ? print_usage_bug+0xc0/0xc0
[  247.094375]  ? do_raw_spin_unlock+0xa7/0x330
[  247.098790]  ? zap_class+0x640/0x640
[  247.102505]  ? print_usage_bug+0xc0/0xc0
[  247.106569]  ? wq_watchdog_touch+0x9c/0xfe
[  247.110813]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.116353]  ? check_preemption_disabled+0x48/0x280
[  247.121379]  ? __lock_is_held+0xb5/0x140
[  247.125450]  __alloc_pages_nodemask+0xa80/0xde0
[  247.130125]  ? zap_class+0x640/0x640
[  247.133850]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  247.138881]  ? find_held_lock+0x36/0x1c0
[  247.142956]  ? ____cache_alloc_node+0x1c7/0x1e0
[  247.147630]  ? lock_downgrade+0x900/0x900
[  247.151792]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.157335]  cache_grow_begin+0xa5/0x8c0
[  247.161446]  ? do_raw_spin_unlock+0xa7/0x330
[  247.165864]  fallback_alloc+0x204/0x2e0
[  247.169848]  ____cache_alloc_node+0x1c7/0x1e0
[  247.174355]  kmem_cache_alloc_node+0xe3/0x730
[  247.178851]  ? ipv6_get_ifaddr+0x42e/0x620
[  247.183097]  __alloc_skb+0x119/0x770
[  247.186816]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.192099]  ? netdev_alloc_frag+0x1f0/0x1f0
[  247.196510]  ? lock_downgrade+0x900/0x900
[  247.200669]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.206210]  ? refcount_sub_and_test_checked+0x203/0x310
[  247.211666]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  247.217120]  ? addrconf_rs_timer+0x690/0x690
[  247.221546]  ndisc_alloc_skb+0x144/0x340
[  247.225619]  ndisc_send_rs+0x331/0x6e0
[  247.229513]  addrconf_rs_timer+0x314/0x690
[  247.233771]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.238021]  call_timer_fn+0x272/0x920
[  247.241910]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.246145]  ? process_timeout+0x40/0x40
[  247.250216]  ? __run_timers+0x7da/0xc70
[  247.254195]  ? _raw_spin_unlock_irq+0x27/0x80
[  247.258692]  ? _raw_spin_unlock_irq+0x27/0x80
[  247.263190]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.267431]  ? lockdep_hardirqs_on+0x296/0x5b0
[  247.272016]  ? trace_hardirqs_on+0xbd/0x310
[  247.276343]  ? kasan_check_read+0x11/0x20
[  247.280491]  ? __run_timers+0x7da/0xc70
[  247.284471]  ? trace_hardirqs_off_caller+0x310/0x310
[  247.289584]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.293825]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  247.298061]  __run_timers+0x7e5/0xc70
[  247.301873]  ? timer_fixup_init+0x70/0x70
[  247.306028]  ? kasan_check_read+0x11/0x20
[  247.310178]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.315459]  ? rcu_softirq_qs+0x20/0x20
[  247.319438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.324980]  ? check_preemption_disabled+0x48/0x280
[  247.330019]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  247.334781]  ? retint_kernel+0x2d/0x2d
[  247.338670]  ? trace_hardirqs_on_caller+0xc0/0x310
[  247.343635]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  247.348414]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  247.353873]  ? zap_class+0x640/0x640
[  247.357595]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.363135]  ? check_preemption_disabled+0x48/0x280
[  247.368203]  ? __lock_is_held+0xb5/0x140
[  247.372266]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.377814]  ? check_preemption_disabled+0x48/0x280
[  247.382837]  run_timer_softirq+0x52/0xb0
[  247.386902]  ? rcu_read_lock_sched_held+0x14f/0x180
[  247.391920]  __do_softirq+0x308/0xb7e
[  247.395725]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  247.400235]  ? lock_downgrade+0x900/0x900
[  247.404391]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  247.409516]  ? pvclock_read_flags+0x160/0x160
[  247.414046]  ? lapic_next_event+0x5a/0x90
[  247.418214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.423767]  ? kvm_clock_read+0x18/0x30
[  247.427758]  ? kvm_sched_clock_read+0x9/0x20
[  247.432178]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.437718]  ? check_preemption_disabled+0x48/0x280
[  247.442770]  irq_exit+0x17f/0x1c0
[  247.446231]  smp_apic_timer_interrupt+0x1cb/0x760
[  247.451074]  ? smp_reschedule_interrupt+0x109/0x650
[  247.456097]  ? smp_call_function_single_interrupt+0x650/0x650
[  247.461983]  ? interrupt_entry+0xb5/0xc0
[  247.466046]  ? trace_hardirqs_off_caller+0xbb/0x310
[  247.471063]  ? trace_hardirqs_off_caller+0xbb/0x310
[  247.476087]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.480934]  ? trace_hardirqs_on_caller+0x310/0x310
[  247.485953]  ? trace_hardirqs_on_caller+0x310/0x310
[  247.490973]  ? task_prio+0x50/0x50
[  247.494516]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.500055]  ? check_preemption_disabled+0x48/0x280
[  247.505080]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.509933]  apic_timer_interrupt+0xf/0x20
[  247.514182]  </IRQ>
[  247.516435] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  247.521371] 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
[  247.540286] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  247.547998] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  247.555267] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  247.562537] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  247.569807] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  247.577077] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  247.584387]  skb_clone+0x1bb/0x500
[  247.587932]  ? skb_split+0x11e0/0x11e0
[  247.591827]  ? preempt_notifier_register+0x200/0x200
[  247.596933]  ? __switch_to_asm+0x34/0x70
[  247.600995]  ? __switch_to_asm+0x34/0x70
[  247.605054]  ? __switch_to_asm+0x40/0x70
[  247.609116]  ? __switch_to_asm+0x34/0x70
[  247.613174]  ? __switch_to_asm+0x40/0x70
[  247.617234]  ? __switch_to_asm+0x40/0x70
[  247.621293]  ? __switch_to_asm+0x34/0x70
[  247.625358]  ? __switch_to_asm+0x34/0x70
[  247.629419]  ? __switch_to_asm+0x40/0x70
[  247.633478]  ? __switch_to_asm+0x34/0x70
[  247.637559]  bpf_clone_redirect+0xb9/0x490
[  247.641824]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  247.646846]  ? __sched_text_start+0x8/0x8
[  247.651000]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  247.655778]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  247.660545]  ? find_held_lock+0x36/0x1c0
[  247.664620]  ? lock_acquire+0x1ed/0x520
[  247.668600]  ? bpf_test_run+0x3cb/0x780
[  247.672577]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  247.678120]  ? check_preemption_disabled+0x48/0x280
[  247.683147]  ? kasan_check_read+0x11/0x20
[  247.687296]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.692579]  ? rcu_softirq_qs+0x20/0x20
[  247.696561]  ? preempt_schedule+0x4d/0x60
[  247.700708]  ? ___preempt_schedule+0x16/0x18
[  247.705137]  ? bpf_test_run+0x25d/0x780
[  247.709126]  ? netlink_diag_dump+0x2a0/0x2a0
[  247.713560]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.719111]  ? bpf_test_init.isra.10+0x70/0x100
[  247.723790]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  247.728560]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  247.733403]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  247.738941]  ? fput+0x130/0x1a0
[  247.742222]  ? __bpf_prog_get+0x9b/0x290
[  247.746292]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  247.751136]  ? bpf_prog_test_run+0x130/0x1a0
[  247.755547]  ? __x64_sys_bpf+0x3d8/0x520
[  247.759611]  ? bpf_prog_get+0x20/0x20
[  247.763434]  ? do_syscall_64+0x1b9/0x820
[  247.767500]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  247.772865]  ? syscall_return_slowpath+0x5e0/0x5e0
[  247.777830]  ? trace_hardirqs_on_caller+0x310/0x310
[  247.782847]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  247.787871]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  247.794538]  ? __switch_to_asm+0x40/0x70
[  247.798599]  ? __switch_to_asm+0x34/0x70
[  247.802668]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  247.807515]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  247.812903] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  247.813013] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  247.819990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  247.819996] Call Trace:
[  247.820003]  <IRQ>
[  247.820020]  dump_stack+0x244/0x39d
[  247.820042]  ? dump_stack_print_info.cold.1+0x20/0x20
[  247.826575] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  247.835874]  warn_alloc.cold.116+0xb7/0x1bd
[  247.838432] syz-executor4 cpuset=syz4 mems_allowed=0
[  247.840576]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  247.874054]  ? lock_downgrade+0x900/0x900
[  247.878217]  ? trace_hardirqs_off+0xb8/0x310
[  247.882671]  ? trace_hardirqs_off+0xb8/0x310
[  247.887089]  __alloc_pages_slowpath+0x26e8/0x2e10
[  247.891965]  ? warn_alloc+0x120/0x120
[  247.895785]  ? print_usage_bug+0xc0/0xc0
[  247.899851]  ? warn_alloc+0x120/0x120
[  247.903658]  ? warn_alloc+0x120/0x120
[  247.907461]  ? print_usage_bug+0xc0/0xc0
[  247.911543]  ? kvm_clock_read+0x18/0x30
[  247.915525]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  247.920547]  ? print_usage_bug+0xc0/0xc0
[  247.924612]  ? __lock_acquire+0x62f/0x4c20
[  247.928857]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  247.934401]  ? should_fail+0x22d/0xd01
[  247.938289]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  247.943572]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.948677]  ? __lock_acquire+0x62f/0x4c20
[  247.952918]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  247.958023]  ? __lock_acquire+0x62f/0x4c20
[  247.962263]  ? should_fail+0x22d/0xd01
[  247.966148]  ? rcu_irq_exit+0x1a2/0x390
[  247.970131]  ? mark_held_locks+0x130/0x130
[  247.974372]  ? mark_held_locks+0x130/0x130
[  247.978614]  ? mark_held_locks+0xc7/0x130
[  247.982773]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  247.987798]  ? zap_class+0x640/0x640
[  247.991513]  ? print_usage_bug+0xc0/0xc0
[  247.995584]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.001136]  ? check_preemption_disabled+0x48/0x280
[  248.006164]  ? __lock_is_held+0xb5/0x140
[  248.010231]  __alloc_pages_nodemask+0xa80/0xde0
[  248.014910]  ? zap_class+0x640/0x640
[  248.018628]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  248.023658]  ? find_held_lock+0x36/0x1c0
[  248.027748]  ? ____cache_alloc_node+0x1c7/0x1e0
[  248.032421]  ? lock_downgrade+0x900/0x900
[  248.036580]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.042126]  cache_grow_begin+0xa5/0x8c0
[  248.046191]  ? do_raw_spin_unlock+0xa7/0x330
[  248.050608]  fallback_alloc+0x204/0x2e0
[  248.054589]  ____cache_alloc_node+0x1c7/0x1e0
[  248.059096]  kmem_cache_alloc_node+0xe3/0x730
[  248.063594]  ? ipv6_get_ifaddr+0x42e/0x620
[  248.067848]  __alloc_skb+0x119/0x770
[  248.071562]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.076844]  ? netdev_alloc_frag+0x1f0/0x1f0
[  248.081272]  ? lock_downgrade+0x900/0x900
[  248.085432]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.090973]  ? refcount_sub_and_test_checked+0x203/0x310
[  248.096427]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  248.101878]  ? addrconf_rs_timer+0x690/0x690
[  248.106306]  ndisc_alloc_skb+0x144/0x340
[  248.110378]  ndisc_send_rs+0x331/0x6e0
[  248.114279]  addrconf_rs_timer+0x314/0x690
[  248.118521]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.122772]  call_timer_fn+0x272/0x920
[  248.126662]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.130902]  ? process_timeout+0x40/0x40
[  248.134978]  ? mark_held_locks+0xc7/0x130
[  248.139131]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.143626]  ? _raw_spin_unlock_irq+0x27/0x80
[  248.148124]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.152365]  ? lockdep_hardirqs_on+0x296/0x5b0
[  248.156950]  ? trace_hardirqs_on+0xbd/0x310
[  248.161280]  ? kasan_check_read+0x11/0x20
[  248.165429]  ? __run_timers+0x7da/0xc70
[  248.169407]  ? trace_hardirqs_off_caller+0x310/0x310
[  248.174521]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.178780]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  248.183018]  __run_timers+0x7e5/0xc70
[  248.186832]  ? timer_fixup_init+0x70/0x70
[  248.190981]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  248.196003]  ? zap_class+0x640/0x640
[  248.199724]  ? print_usage_bug+0xc0/0xc0
[  248.203797]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  248.208996]  ? find_held_lock+0x36/0x1c0
[  248.213063]  ? zap_class+0x640/0x640
[  248.216788]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.222326]  ? check_preemption_disabled+0x48/0x280
[  248.227385]  ? __lock_is_held+0xb5/0x140
[  248.231446]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.236989]  ? check_preemption_disabled+0x48/0x280
[  248.242015]  run_timer_softirq+0x52/0xb0
[  248.246081]  ? rcu_read_lock_sched_held+0x14f/0x180
[  248.251100]  __do_softirq+0x308/0xb7e
[  248.254917]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  248.259443]  ? lock_downgrade+0x900/0x900
[  248.263634]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  248.268752]  ? pvclock_read_flags+0x160/0x160
[  248.273257]  ? lapic_next_event+0x5a/0x90
[  248.277411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.282953]  ? kvm_clock_read+0x18/0x30
[  248.286929]  ? kvm_sched_clock_read+0x9/0x20
[  248.291342]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.296883]  ? check_preemption_disabled+0x48/0x280
[  248.301912]  irq_exit+0x17f/0x1c0
[  248.305368]  smp_apic_timer_interrupt+0x1cb/0x760
[  248.310220]  ? smp_reschedule_interrupt+0x109/0x650
[  248.315253]  ? smp_call_function_single_interrupt+0x650/0x650
[  248.321141]  ? interrupt_entry+0xb5/0xc0
[  248.325205]  ? trace_hardirqs_off_caller+0xbb/0x310
[  248.330220]  ? trace_hardirqs_off_caller+0xbb/0x310
[  248.335286]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.340130]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.345145]  ? trace_hardirqs_on_caller+0x310/0x310
[  248.350163]  ? task_prio+0x50/0x50
[  248.353704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.359256]  ? check_preemption_disabled+0x48/0x280
[  248.364301]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  248.369159]  apic_timer_interrupt+0xf/0x20
[  248.373390]  </IRQ>
[  248.375633] RIP: 0010:check_memory_region+0x121/0x1b0
[  248.380823] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  248.399722] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  248.407438] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  248.414710] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  248.421985] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  248.429258] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  248.436526] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  248.443821]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.449115]  kasan_check_read+0x11/0x20
[  248.453093]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.458198]  ? rcu_softirq_qs+0x20/0x20
[  248.462284]  rcu_is_watching+0x10/0x30
[  248.466179]  list_lru_count_one+0x362/0x450
[  248.470502]  ? list_lru_isolate_move+0x3c0/0x3c0
[  248.475267]  ? shmem_free_inode+0xd0/0xd0
[  248.479422]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.484961]  ? ubifs_shrink_count+0xc4/0x100
[  248.489381]  super_cache_count+0x153/0x2e0
[  248.493625]  do_shrink_slab+0x1b1/0xd30
[  248.497607]  ? lock_acquire+0x1ed/0x520
[  248.501588]  ? snapshot_refaults+0x290/0x290
[  248.506003]  ? lock_release+0xa00/0xa00
[  248.509986]  ? perf_trace_sched_process_exec+0x860/0x860
[  248.515452]  ? down_read_trylock+0xda/0x140
[  248.519772]  ? shrink_slab+0x207/0x8c0
[  248.523661]  ? downgrade_write+0x270/0x270
[  248.527906]  shrink_slab+0x389/0x8c0
[  248.531620]  ? shrink_active_list+0x1f00/0x1f00
[  248.536298]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  248.541930]  ? kasan_check_read+0x11/0x20
[  248.546084]  ? do_raw_spin_unlock+0xa7/0x330
[  248.550499]  ? ___preempt_schedule+0x16/0x18
[  248.554922]  ? _raw_spin_unlock+0x3f/0x50
[  248.559080]  shrink_node+0x431/0x16b0
[  248.562891]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  248.568194]  ? shrink_node_memcg+0x18f0/0x18f0
[  248.572778]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  248.577365]  ? trace_hardirqs_on+0xbd/0x310
[  248.581691]  ? vmpressure+0x271/0x340
[  248.585501]  ? do_raw_spin_trylock+0x270/0x270
[  248.590093]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  248.595633]  ? __cpuset_node_allowed+0x19b/0x660
[  248.600396]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  248.606109]  ? vmpressure+0x1a2/0x340
[  248.609924]  do_try_to_free_pages+0x3e7/0x1290
[  248.614505]  ? zap_class+0x640/0x640
[  248.618235]  ? shrink_node+0x16b0/0x16b0
[  248.622362]  ? __lock_is_held+0xb5/0x140
[  248.626443]  try_to_free_pages+0x4d0/0xb90
[  248.630683]  ? do_try_to_free_pages+0x1290/0x1290
[  248.635536]  ? lock_acquire+0x1ed/0x520
[  248.639551]  ? set_page_refcounted+0x280/0x280
[  248.644173]  ? lock_release+0xa00/0xa00
[  248.648152]  ? _raw_spin_unlock_irq+0x60/0x80
[  248.652651]  ? psi_memstall_enter+0x240/0x2b0
[  248.657152]  ? psi_memstall_tick+0x230/0x230
[  248.661574]  __alloc_pages_slowpath+0xa14/0x2e10
[  248.666363]  ? warn_alloc+0x120/0x120
[  248.670176]  ? mark_held_locks+0x130/0x130
[  248.674417]  ? find_get_entry+0xaae/0x1120
[  248.678662]  ? filemap_map_pages+0x1a20/0x1a20
[  248.683255]  ? zap_class+0x640/0x640
[  248.686983]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  248.692526]  ? check_preemption_disabled+0x48/0x280
[  248.697543]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.703083]  ? should_fail+0x22d/0xd01
[  248.706975]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  248.712080]  ? zap_class+0x640/0x640
[  248.715822]  ? __lock_is_held+0xb5/0x140
[  248.719894]  ? mark_held_locks+0x130/0x130
[  248.724137]  ? lock_release+0xa00/0xa00
[  248.728115]  ? perf_trace_sched_process_exec+0x860/0x860
[  248.733569]  ? xa_load+0x2ba/0x460
[  248.737112]  ? lock_downgrade+0x900/0x900
[  248.741274]  ? __might_sleep+0x95/0x190
[  248.745264]  __alloc_pages_nodemask+0xa80/0xde0
[  248.749945]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  248.754972]  ? __page_cache_alloc+0x191/0x5c0
[  248.759469]  ? xa_load+0x2e1/0x460
[  248.763015]  ? xa_clear_mark+0x40/0x40
[  248.766909]  ? zap_class+0x640/0x640
[  248.770632]  ? zap_class+0x640/0x640
[  248.774346]  ? zap_class+0x640/0x640
[  248.778060]  ? __do_page_cache_readahead+0x663/0x810
[  248.783171]  ? find_held_lock+0x36/0x1c0
[  248.787260]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  248.792806]  alloc_pages_current+0x173/0x350
[  248.797226]  __page_cache_alloc+0x38c/0x5c0
[  248.801551]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  248.806483]  ? kasan_check_read+0x11/0x20
[  248.810630]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.815913]  ? generic_perform_write+0x6a0/0x6a0
[  248.820686]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  248.826239]  ? check_preemption_disabled+0x48/0x280
[  248.831303]  filemap_fault+0x1595/0x25f0
[  248.835379]  ? __lock_page_or_retry+0xa00/0xa00
[  248.840050]  ? mark_held_locks+0x130/0x130
[  248.844296]  ? filemap_map_pages+0xd6b/0x1a20
[  248.848794]  ? lock_downgrade+0x900/0x900
[  248.852942]  ? check_preemption_disabled+0x48/0x280
[  248.857961]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  248.862893]  ? kasan_check_read+0x11/0x20
[  248.867042]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  248.872333]  ? rcu_softirq_qs+0x20/0x20
[  248.876321]  ? filemap_map_pages+0xd92/0x1a20
[  248.880848]  ? find_get_entries_tag+0x1400/0x1400
[  248.885693]  ? find_held_lock+0x36/0x1c0
[  248.889784]  ? lock_acquire+0x1ed/0x520
[  248.893774]  ? ext4_filemap_fault+0x7a/0xad
[  248.898107]  ? lock_release+0xa00/0xa00
[  248.902086]  ? perf_trace_sched_process_exec+0x860/0x860
[  248.907540]  ? print_usage_bug+0xc0/0xc0
[  248.911617]  ? down_read+0x8d/0x120
[  248.915268]  ? ext4_filemap_fault+0x7a/0xad
[  248.919593]  ? __down_interruptible+0x700/0x700
[  248.924269]  ? find_held_lock+0x36/0x1c0
[  248.928367]  ext4_filemap_fault+0x82/0xad
[  248.932532]  __do_fault+0x100/0x6b0
[  248.936183]  ? lock_downgrade+0x900/0x900
[  248.940332]  ? pmd_devmap_trans_unstable+0x220/0x220
[  248.945922]  ? kasan_check_read+0x11/0x20
[  248.950071]  ? do_raw_spin_unlock+0xa7/0x330
[  248.954479]  ? do_raw_spin_trylock+0x270/0x270
[  248.959078]  __handle_mm_fault+0x3ea0/0x5be0
[  248.963500]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  248.968353]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  248.972949]  ? zap_class+0x640/0x640
[  248.976667]  ? zap_class+0x640/0x640
[  248.980385]  ? __x64_sys_futex+0x53e/0x6a0
[  248.984624]  ? find_held_lock+0x36/0x1c0
[  248.988695]  ? handle_mm_fault+0x42a/0xc70
[  248.992932]  ? lock_downgrade+0x900/0x900
[  248.997098]  ? check_preemption_disabled+0x48/0x280
[  249.002120]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  249.007049]  ? kasan_check_read+0x11/0x20
[  249.011202]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.016481]  ? rcu_softirq_qs+0x20/0x20
[  249.020488]  ? trace_hardirqs_off_caller+0x310/0x310
[  249.025591]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.031134]  ? check_preemption_disabled+0x48/0x280
[  249.036159]  handle_mm_fault+0x54f/0xc70
[  249.040231]  ? __handle_mm_fault+0x5be0/0x5be0
[  249.044824]  ? find_vma+0x34/0x190
[  249.048373]  __do_page_fault+0x5e8/0xe60
[  249.052449]  ? trace_hardirqs_off+0xb8/0x310
[  249.056888]  do_page_fault+0xf2/0x7e0
[  249.060694]  ? vmalloc_sync_all+0x30/0x30
[  249.064844]  ? error_entry+0x70/0xd0
[  249.068562]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.073578]  ? trace_hardirqs_on_caller+0xc0/0x310
[  249.078515]  ? syscall_return_slowpath+0x5e0/0x5e0
[  249.083443]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.088287]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.093304]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  249.098770]  ? prepare_exit_to_usermode+0x291/0x3b0
[  249.103787]  ? page_fault+0x8/0x30
[  249.107334]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.112184]  ? page_fault+0x8/0x30
[  249.115724]  page_fault+0x1e/0x30
[  249.119185] RIP: 0033:0x404068
[  249.122385] Code: Bad RIP value.
[  249.125764] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  249.131130] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  249.138395] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  249.145660] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  249.152926] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  249.160200] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  249.167509] warn_alloc_show_mem: 1 callbacks suppressed
[  249.167521] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  249.167523] Mem-Info:
[  249.167554] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  249.167554]  active_file:13 inactive_file:28 isolated_file:0
[  249.167554]  unevictable:0 dirty:1 writeback:0 unstable:0
[  249.167554]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  249.167554]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  249.167554]  free:13541 free_pcp:161 free_cma:0
[  249.172903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  249.180208] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  249.182605] Call Trace:
[  249.215640] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  249.224981]  <IRQ>
[  249.252897] lowmem_reserve[]: 0 2818 6321 6321
[  249.255494]  dump_stack+0x244/0x39d
[  249.281576] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  249.283726]  ? dump_stack_print_info.cold.1+0x20/0x20
[  249.288301] lowmem_reserve[]: 0 0 3503 3503
[  249.291946]  warn_alloc.cold.116+0xb7/0x1bd
[  249.319514] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  249.324702]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  249.329001] lowmem_reserve[]: 0 0 0 0
[  249.333353]  ? lock_downgrade+0x900/0x900
[  249.362498] 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
[  249.367337]  ? trace_hardirqs_off+0xb8/0x310
[  249.371110] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  249.375271]  ? trace_hardirqs_off+0xb8/0x310
[  249.388769] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  249.393180]  __alloc_pages_slowpath+0x26e8/0x2e10
[  249.408335] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  249.412792]  ? warn_alloc+0x120/0x120
[  249.427249] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  249.432074]  ? print_usage_bug+0xc0/0xc0
[  249.440886] 4984 total pagecache pages
[  249.444690]  ? warn_alloc+0x120/0x120
[  249.453253] 0 pages in swap cache
[  249.457298]  ? warn_alloc+0x120/0x120
[  249.461163] Swap cache stats: add 0, delete 0, find 0/0
[  249.464953]  ? print_usage_bug+0xc0/0xc0
[  249.468384] Free swap  = 0kB
[  249.472178]  ? print_usage_bug+0xc0/0xc0
[  249.477517] Total swap = 0kB
[  249.481571]  ? __lock_acquire+0x62f/0x4c20
[  249.484566] 1965979 pages RAM
[  249.488620]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.491616] 0 pages HighMem/MovableOnly
[  249.495850]  ? should_fail+0x22d/0xd01
[  249.498929] 342853 pages reserved
[  249.504461]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.508415] 0 pages cma reserved
[  249.512326]  ? __lock_acquire+0x62f/0x4c20
[  249.515823] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  249.520858]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  249.520872]  ? __lock_acquire+0x62f/0x4c20
[  249.520888]  ? should_fail+0x22d/0xd01
[  249.524305] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  249.528468]  ? find_held_lock+0x36/0x1c0
[  249.534936] syz-fuzzer cpuset=/ mems_allowed=0
[  249.540035]  ? mark_held_locks+0x130/0x130
[  249.571178]  ? mark_held_locks+0x130/0x130
[  249.575427]  ? zap_class+0x640/0x640
[  249.579162]  ? zap_class+0x640/0x640
[  249.582969]  ? print_usage_bug+0xc0/0xc0
[  249.587030]  ? do_raw_spin_unlock+0xa7/0x330
[  249.591471]  ? zap_class+0x640/0x640
[  249.595185]  ? print_usage_bug+0xc0/0xc0
[  249.599249]  ? wq_watchdog_touch+0x9c/0xfe
[  249.603493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.609031]  ? check_preemption_disabled+0x48/0x280
[  249.614060]  ? __lock_is_held+0xb5/0x140
[  249.618126]  __alloc_pages_nodemask+0xa80/0xde0
[  249.622800]  ? zap_class+0x640/0x640
[  249.626544]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  249.631570]  ? find_held_lock+0x36/0x1c0
[  249.635659]  ? ____cache_alloc_node+0x1c7/0x1e0
[  249.640336]  ? lock_downgrade+0x900/0x900
[  249.644497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.650038]  cache_grow_begin+0xa5/0x8c0
[  249.654100]  ? do_raw_spin_unlock+0xa7/0x330
[  249.658520]  fallback_alloc+0x204/0x2e0
[  249.662501]  ____cache_alloc_node+0x1c7/0x1e0
[  249.667003]  kmem_cache_alloc_node+0xe3/0x730
[  249.671505]  ? ipv6_get_ifaddr+0x42e/0x620
[  249.675767]  __alloc_skb+0x119/0x770
[  249.679502]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.684782]  ? netdev_alloc_frag+0x1f0/0x1f0
[  249.689191]  ? lock_downgrade+0x900/0x900
[  249.693349]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.698887]  ? refcount_sub_and_test_checked+0x203/0x310
[  249.704343]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  249.709795]  ? addrconf_rs_timer+0x690/0x690
[  249.714222]  ndisc_alloc_skb+0x144/0x340
[  249.718288]  ndisc_send_rs+0x331/0x6e0
[  249.722185]  addrconf_rs_timer+0x314/0x690
[  249.726426]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.730671]  call_timer_fn+0x272/0x920
[  249.734561]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.738799]  ? process_timeout+0x40/0x40
[  249.742873]  ? __run_timers+0x7da/0xc70
[  249.746849]  ? _raw_spin_unlock_irq+0x27/0x80
[  249.751343]  ? _raw_spin_unlock_irq+0x27/0x80
[  249.755840]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.760076]  ? lockdep_hardirqs_on+0x296/0x5b0
[  249.764663]  ? trace_hardirqs_on+0xbd/0x310
[  249.768989]  ? kasan_check_read+0x11/0x20
[  249.773139]  ? __run_timers+0x7da/0xc70
[  249.777115]  ? trace_hardirqs_off_caller+0x310/0x310
[  249.782228]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.786472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  249.790710]  __run_timers+0x7e5/0xc70
[  249.794533]  ? timer_fixup_init+0x70/0x70
[  249.798687]  ? kasan_check_read+0x11/0x20
[  249.802841]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  249.808120]  ? rcu_softirq_qs+0x20/0x20
[  249.812099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.818145]  ? check_preemption_disabled+0x48/0x280
[  249.823168]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  249.827932]  ? retint_kernel+0x2d/0x2d
[  249.831823]  ? trace_hardirqs_on_caller+0xc0/0x310
[  249.836772]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  249.841537]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  249.846992]  ? zap_class+0x640/0x640
[  249.850712]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.856296]  ? check_preemption_disabled+0x48/0x280
[  249.861324]  ? __lock_is_held+0xb5/0x140
[  249.865421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.870959]  ? check_preemption_disabled+0x48/0x280
[  249.875979]  run_timer_softirq+0x52/0xb0
[  249.880052]  ? rcu_read_lock_sched_held+0x14f/0x180
[  249.885071]  __do_softirq+0x308/0xb7e
[  249.888880]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  249.893374]  ? lock_downgrade+0x900/0x900
[  249.897545]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  249.902657]  ? pvclock_read_flags+0x160/0x160
[  249.907160]  ? lapic_next_event+0x5a/0x90
[  249.911312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.916885]  ? kvm_clock_read+0x18/0x30
[  249.920861]  ? kvm_sched_clock_read+0x9/0x20
[  249.925273]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  249.930817]  ? check_preemption_disabled+0x48/0x280
[  249.935849]  irq_exit+0x17f/0x1c0
[  249.939303]  smp_apic_timer_interrupt+0x1cb/0x760
[  249.944162]  ? smp_reschedule_interrupt+0x109/0x650
[  249.949179]  ? smp_call_function_single_interrupt+0x650/0x650
[  249.955067]  ? interrupt_entry+0xb5/0xc0
[  249.959130]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.964150]  ? trace_hardirqs_off_caller+0xbb/0x310
[  249.969170]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  249.974017]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.979034]  ? trace_hardirqs_on_caller+0x310/0x310
[  249.984050]  ? task_prio+0x50/0x50
[  249.987595]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  249.993151]  ? check_preemption_disabled+0x48/0x280
[  249.998179]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.003028]  apic_timer_interrupt+0xf/0x20
[  250.007261]  </IRQ>
[  250.009505] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  250.014439] 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
[  250.033356] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  250.041065] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  250.048342] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  250.055612] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  250.062884] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  250.070149] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  250.077458]  skb_clone+0x1bb/0x500
[  250.081001]  ? skb_split+0x11e0/0x11e0
[  250.084894]  ? preempt_notifier_register+0x200/0x200
[  250.089997]  ? __switch_to_asm+0x34/0x70
[  250.094060]  ? __switch_to_asm+0x34/0x70
[  250.098129]  ? __switch_to_asm+0x40/0x70
[  250.102195]  ? __switch_to_asm+0x34/0x70
[  250.106254]  ? __switch_to_asm+0x40/0x70
[  250.110316]  ? __switch_to_asm+0x40/0x70
[  250.114375]  ? __switch_to_asm+0x34/0x70
[  250.118435]  ? __switch_to_asm+0x34/0x70
[  250.122513]  ? __switch_to_asm+0x40/0x70
[  250.126571]  ? __switch_to_asm+0x34/0x70
[  250.130643]  bpf_clone_redirect+0xb9/0x490
[  250.134892]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  250.139911]  ? __sched_text_start+0x8/0x8
[  250.144063]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  250.148829]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  250.153590]  ? find_held_lock+0x36/0x1c0
[  250.157660]  ? lock_acquire+0x1ed/0x520
[  250.161652]  ? bpf_test_run+0x3cb/0x780
[  250.165644]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.171202]  ? check_preemption_disabled+0x48/0x280
[  250.176244]  ? kasan_check_read+0x11/0x20
[  250.180420]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.185697]  ? rcu_softirq_qs+0x20/0x20
[  250.189677]  ? preempt_schedule+0x4d/0x60
[  250.193857]  ? ___preempt_schedule+0x16/0x18
[  250.198280]  ? bpf_test_run+0x25d/0x780
[  250.202287]  ? netlink_diag_dump+0x2a0/0x2a0
[  250.206700]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.212248]  ? bpf_test_init.isra.10+0x70/0x100
[  250.216929]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  250.221694]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  250.226534]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  250.232069]  ? fput+0x130/0x1a0
[  250.235355]  ? __bpf_prog_get+0x9b/0x290
[  250.239419]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  250.244262]  ? bpf_prog_test_run+0x130/0x1a0
[  250.248681]  ? __x64_sys_bpf+0x3d8/0x520
[  250.252759]  ? bpf_prog_get+0x20/0x20
[  250.256585]  ? do_syscall_64+0x1b9/0x820
[  250.260648]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  250.266021]  ? syscall_return_slowpath+0x5e0/0x5e0
[  250.270958]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.275980]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  250.281004]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  250.287672]  ? __switch_to_asm+0x40/0x70
[  250.291730]  ? __switch_to_asm+0x34/0x70
[  250.295814]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.300671]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  250.306056] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  250.306126] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  250.312989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  250.312995] Call Trace:
[  250.313001]  <IRQ>
[  250.313018]  dump_stack+0x244/0x39d
[  250.313038]  ? dump_stack_print_info.cold.1+0x20/0x20
[  250.319692] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  250.328874]  warn_alloc.cold.116+0xb7/0x1bd
[  250.331426] syz-executor4 cpuset=syz4 mems_allowed=0
[  250.333572]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  250.367050]  ? lock_downgrade+0x900/0x900
[  250.371208]  ? trace_hardirqs_off+0xb8/0x310
[  250.375628]  ? trace_hardirqs_off+0xb8/0x310
[  250.380047]  __alloc_pages_slowpath+0x26e8/0x2e10
[  250.384924]  ? warn_alloc+0x120/0x120
[  250.388728]  ? print_usage_bug+0xc0/0xc0
[  250.392806]  ? warn_alloc+0x120/0x120
[  250.396614]  ? warn_alloc+0x120/0x120
[  250.400423]  ? print_usage_bug+0xc0/0xc0
[  250.404489]  ? print_usage_bug+0xc0/0xc0
[  250.408553]  ? __lock_acquire+0x62f/0x4c20
[  250.412797]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.418340]  ? should_fail+0x22d/0xd01
[  250.422237]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.427351]  ? __lock_acquire+0x62f/0x4c20
[  250.431591]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  250.436695]  ? __lock_acquire+0x62f/0x4c20
[  250.440929]  ? should_fail+0x22d/0xd01
[  250.444817]  ? find_held_lock+0x36/0x1c0
[  250.448891]  ? mark_held_locks+0x130/0x130
[  250.453133]  ? mark_held_locks+0x130/0x130
[  250.457383]  ? zap_class+0x640/0x640
[  250.461096]  ? zap_class+0x640/0x640
[  250.464817]  ? print_usage_bug+0xc0/0xc0
[  250.468878]  ? do_raw_spin_unlock+0xa7/0x330
[  250.473288]  ? zap_class+0x640/0x640
[  250.477003]  ? print_usage_bug+0xc0/0xc0
[  250.481067]  ? wq_watchdog_touch+0x9c/0xfe
[  250.485305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.490846]  ? check_preemption_disabled+0x48/0x280
[  250.495905]  ? __lock_is_held+0xb5/0x140
[  250.499976]  __alloc_pages_nodemask+0xa80/0xde0
[  250.504646]  ? zap_class+0x640/0x640
[  250.508386]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  250.513447]  ? find_held_lock+0x36/0x1c0
[  250.517517]  ? ____cache_alloc_node+0x1c7/0x1e0
[  250.522194]  ? lock_downgrade+0x900/0x900
[  250.526350]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.531903]  cache_grow_begin+0xa5/0x8c0
[  250.535965]  ? do_raw_spin_unlock+0xa7/0x330
[  250.540385]  fallback_alloc+0x204/0x2e0
[  250.544386]  ____cache_alloc_node+0x1c7/0x1e0
[  250.548887]  kmem_cache_alloc_node+0xe3/0x730
[  250.553389]  ? ipv6_get_ifaddr+0x42e/0x620
[  250.557655]  __alloc_skb+0x119/0x770
[  250.561370]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.566653]  ? netdev_alloc_frag+0x1f0/0x1f0
[  250.571066]  ? lock_downgrade+0x900/0x900
[  250.575227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.580777]  ? refcount_sub_and_test_checked+0x203/0x310
[  250.586254]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  250.591710]  ? addrconf_rs_timer+0x690/0x690
[  250.596146]  ndisc_alloc_skb+0x144/0x340
[  250.600217]  ndisc_send_rs+0x331/0x6e0
[  250.604115]  addrconf_rs_timer+0x314/0x690
[  250.608361]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.612614]  call_timer_fn+0x272/0x920
[  250.616501]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.620747]  ? process_timeout+0x40/0x40
[  250.624845]  ? mark_held_locks+0xc7/0x130
[  250.628995]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.633491]  ? _raw_spin_unlock_irq+0x27/0x80
[  250.638001]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.642238]  ? lockdep_hardirqs_on+0x296/0x5b0
[  250.646841]  ? trace_hardirqs_on+0xbd/0x310
[  250.651165]  ? kasan_check_read+0x11/0x20
[  250.655318]  ? __run_timers+0x7da/0xc70
[  250.659294]  ? trace_hardirqs_off_caller+0x310/0x310
[  250.664432]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.668682]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  250.672918]  __run_timers+0x7e5/0xc70
[  250.676730]  ? timer_fixup_init+0x70/0x70
[  250.680891]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  250.685912]  ? zap_class+0x640/0x640
[  250.689631]  ? print_usage_bug+0xc0/0xc0
[  250.693699]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  250.698896]  ? find_held_lock+0x36/0x1c0
[  250.702963]  ? zap_class+0x640/0x640
[  250.706686]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.712238]  ? check_preemption_disabled+0x48/0x280
[  250.717326]  ? __lock_is_held+0xb5/0x140
[  250.721417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.726983]  ? check_preemption_disabled+0x48/0x280
[  250.732011]  run_timer_softirq+0x52/0xb0
[  250.736074]  ? rcu_read_lock_sched_held+0x14f/0x180
[  250.741094]  __do_softirq+0x308/0xb7e
[  250.744900]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  250.749396]  ? lock_downgrade+0x900/0x900
[  250.753568]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  250.758712]  ? pvclock_read_flags+0x160/0x160
[  250.763222]  ? lapic_next_event+0x5a/0x90
[  250.767377]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.772919]  ? kvm_clock_read+0x18/0x30
[  250.776899]  ? kvm_sched_clock_read+0x9/0x20
[  250.781315]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.786857]  ? check_preemption_disabled+0x48/0x280
[  250.791886]  irq_exit+0x17f/0x1c0
[  250.795340]  smp_apic_timer_interrupt+0x1cb/0x760
[  250.800186]  ? smp_reschedule_interrupt+0x109/0x650
[  250.805206]  ? smp_call_function_single_interrupt+0x650/0x650
[  250.811093]  ? interrupt_entry+0xb5/0xc0
[  250.815169]  ? trace_hardirqs_off_caller+0xbb/0x310
[  250.820219]  ? trace_hardirqs_off_caller+0xbb/0x310
[  250.825241]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.830092]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.835108]  ? trace_hardirqs_on_caller+0x310/0x310
[  250.840154]  ? task_prio+0x50/0x50
[  250.843713]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  250.849257]  ? check_preemption_disabled+0x48/0x280
[  250.854302]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  250.859173]  apic_timer_interrupt+0xf/0x20
[  250.863400]  </IRQ>
[  250.865638] RIP: 0010:check_memory_region+0x121/0x1b0
[  250.870830] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  250.889726] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  250.897458] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  250.904747] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  250.912017] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  250.919287] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  250.926554] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  250.933842]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.939132]  kasan_check_read+0x11/0x20
[  250.943111]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  250.948706]  ? rcu_softirq_qs+0x20/0x20
[  250.952698]  rcu_is_watching+0x10/0x30
[  250.956586]  list_lru_count_one+0x362/0x450
[  250.960911]  ? list_lru_isolate_move+0x3c0/0x3c0
[  250.965670]  ? shmem_free_inode+0xd0/0xd0
[  250.969820]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  250.975389]  ? ubifs_shrink_count+0xc4/0x100
[  250.979807]  super_cache_count+0x153/0x2e0
[  250.984049]  do_shrink_slab+0x1b1/0xd30
[  250.988031]  ? lock_acquire+0x1ed/0x520
[  250.992013]  ? snapshot_refaults+0x290/0x290
[  250.996427]  ? lock_release+0xa00/0xa00
[  251.000411]  ? perf_trace_sched_process_exec+0x860/0x860
[  251.005882]  ? down_read_trylock+0xda/0x140
[  251.010201]  ? shrink_slab+0x207/0x8c0
[  251.014090]  ? downgrade_write+0x270/0x270
[  251.018336]  shrink_slab+0x389/0x8c0
[  251.022050]  ? shrink_active_list+0x1f00/0x1f00
[  251.026729]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  251.032381]  ? kasan_check_read+0x11/0x20
[  251.036566]  ? do_raw_spin_unlock+0xa7/0x330
[  251.040995]  ? ___preempt_schedule+0x16/0x18
[  251.045439]  ? _raw_spin_unlock+0x3f/0x50
[  251.049600]  shrink_node+0x431/0x16b0
[  251.053406]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  251.058707]  ? shrink_node_memcg+0x18f0/0x18f0
[  251.063311]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  251.067901]  ? trace_hardirqs_on+0xbd/0x310
[  251.072228]  ? vmpressure+0x271/0x340
[  251.076042]  ? do_raw_spin_trylock+0x270/0x270
[  251.080637]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  251.086175]  ? __cpuset_node_allowed+0x19b/0x660
[  251.090937]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  251.096650]  ? vmpressure+0x1a2/0x340
[  251.100456]  do_try_to_free_pages+0x3e7/0x1290
[  251.105056]  ? zap_class+0x640/0x640
[  251.108791]  ? shrink_node+0x16b0/0x16b0
[  251.112855]  ? __lock_is_held+0xb5/0x140
[  251.116934]  try_to_free_pages+0x4d0/0xb90
[  251.121175]  ? do_try_to_free_pages+0x1290/0x1290
[  251.126034]  ? lock_acquire+0x1ed/0x520
[  251.130014]  ? set_page_refcounted+0x280/0x280
[  251.134604]  ? lock_release+0xa00/0xa00
[  251.138584]  ? _raw_spin_unlock_irq+0x60/0x80
[  251.143082]  ? psi_memstall_enter+0x240/0x2b0
[  251.147623]  ? psi_memstall_tick+0x230/0x230
[  251.152058]  __alloc_pages_slowpath+0xa14/0x2e10
[  251.156845]  ? warn_alloc+0x120/0x120
[  251.160649]  ? mark_held_locks+0x130/0x130
[  251.164895]  ? find_get_entry+0xaae/0x1120
[  251.169146]  ? filemap_map_pages+0x1a20/0x1a20
[  251.173745]  ? zap_class+0x640/0x640
[  251.177477]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  251.183018]  ? check_preemption_disabled+0x48/0x280
[  251.188039]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.193606]  ? should_fail+0x22d/0xd01
[  251.197560]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  251.202664]  ? zap_class+0x640/0x640
[  251.206452]  ? __lock_is_held+0xb5/0x140
[  251.210554]  ? mark_held_locks+0x130/0x130
[  251.214793]  ? lock_release+0xa00/0xa00
[  251.218775]  ? perf_trace_sched_process_exec+0x860/0x860
[  251.224228]  ? xa_load+0x2ba/0x460
[  251.227779]  ? lock_downgrade+0x900/0x900
[  251.231933]  ? __might_sleep+0x95/0x190
[  251.235918]  __alloc_pages_nodemask+0xa80/0xde0
[  251.240601]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  251.245624]  ? __page_cache_alloc+0x191/0x5c0
[  251.250120]  ? xa_load+0x2e1/0x460
[  251.253666]  ? xa_clear_mark+0x40/0x40
[  251.257556]  ? zap_class+0x640/0x640
[  251.261283]  ? zap_class+0x640/0x640
[  251.265013]  ? zap_class+0x640/0x640
[  251.268731]  ? __do_page_cache_readahead+0x663/0x810
[  251.273852]  ? find_held_lock+0x36/0x1c0
[  251.277922]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  251.283469]  alloc_pages_current+0x173/0x350
[  251.287883]  __page_cache_alloc+0x38c/0x5c0
[  251.292205]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.297195]  ? kasan_check_read+0x11/0x20
[  251.301341]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.306623]  ? generic_perform_write+0x6a0/0x6a0
[  251.311387]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.316926]  ? check_preemption_disabled+0x48/0x280
[  251.321951]  filemap_fault+0x1595/0x25f0
[  251.326026]  ? __lock_page_or_retry+0xa00/0xa00
[  251.330700]  ? mark_held_locks+0x130/0x130
[  251.334951]  ? filemap_map_pages+0xd6b/0x1a20
[  251.339463]  ? lock_downgrade+0x900/0x900
[  251.343628]  ? check_preemption_disabled+0x48/0x280
[  251.348668]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.353612]  ? kasan_check_read+0x11/0x20
[  251.357776]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.363054]  ? rcu_softirq_qs+0x20/0x20
[  251.367092]  ? filemap_map_pages+0xd92/0x1a20
[  251.371604]  ? find_get_entries_tag+0x1400/0x1400
[  251.376446]  ? find_held_lock+0x36/0x1c0
[  251.380529]  ? lock_acquire+0x1ed/0x520
[  251.384503]  ? ext4_filemap_fault+0x7a/0xad
[  251.388833]  ? lock_release+0xa00/0xa00
[  251.392824]  ? perf_trace_sched_process_exec+0x860/0x860
[  251.398293]  ? print_usage_bug+0xc0/0xc0
[  251.402390]  ? down_read+0x8d/0x120
[  251.406018]  ? ext4_filemap_fault+0x7a/0xad
[  251.410369]  ? __down_interruptible+0x700/0x700
[  251.415061]  ? find_held_lock+0x36/0x1c0
[  251.419128]  ext4_filemap_fault+0x82/0xad
[  251.423285]  __do_fault+0x100/0x6b0
[  251.426918]  ? lock_downgrade+0x900/0x900
[  251.431067]  ? pmd_devmap_trans_unstable+0x220/0x220
[  251.436193]  ? kasan_check_read+0x11/0x20
[  251.440359]  ? do_raw_spin_unlock+0xa7/0x330
[  251.444775]  ? do_raw_spin_trylock+0x270/0x270
[  251.449379]  __handle_mm_fault+0x3ea0/0x5be0
[  251.453798]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  251.458650]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  251.463251]  ? zap_class+0x640/0x640
[  251.466965]  ? zap_class+0x640/0x640
[  251.470684]  ? __x64_sys_futex+0x53e/0x6a0
[  251.474929]  ? find_held_lock+0x36/0x1c0
[  251.479001]  ? handle_mm_fault+0x42a/0xc70
[  251.483240]  ? lock_downgrade+0x900/0x900
[  251.487401]  ? check_preemption_disabled+0x48/0x280
[  251.492426]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  251.497363]  ? kasan_check_read+0x11/0x20
[  251.501509]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  251.506798]  ? rcu_softirq_qs+0x20/0x20
[  251.510779]  ? trace_hardirqs_off_caller+0x310/0x310
[  251.515887]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.521428]  ? check_preemption_disabled+0x48/0x280
[  251.526458]  handle_mm_fault+0x54f/0xc70
[  251.530560]  ? __handle_mm_fault+0x5be0/0x5be0
[  251.535150]  ? find_vma+0x34/0x190
[  251.538702]  __do_page_fault+0x5e8/0xe60
[  251.542784]  ? trace_hardirqs_off+0xb8/0x310
[  251.547205]  do_page_fault+0xf2/0x7e0
[  251.551011]  ? vmalloc_sync_all+0x30/0x30
[  251.555158]  ? error_entry+0x70/0xd0
[  251.558873]  ? trace_hardirqs_off_caller+0xbb/0x310
[  251.563892]  ? trace_hardirqs_on_caller+0xc0/0x310
[  251.568825]  ? syscall_return_slowpath+0x5e0/0x5e0
[  251.573761]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.578618]  ? trace_hardirqs_on_caller+0x310/0x310
[  251.583637]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  251.589095]  ? prepare_exit_to_usermode+0x291/0x3b0
[  251.594130]  ? page_fault+0x8/0x30
[  251.597679]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  251.602524]  ? page_fault+0x8/0x30
[  251.606068]  page_fault+0x1e/0x30
[  251.609518] RIP: 0033:0x404068
[  251.612722] Code: Bad RIP value.
[  251.616105] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  251.621482] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  251.628765] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  251.636033] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  251.643300] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  251.650572] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  251.657867] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  251.657872] warn_alloc_show_mem: 1 callbacks suppressed
[  251.657879] Mem-Info:
[  251.665156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  251.670528] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  251.670528]  active_file:13 inactive_file:28 isolated_file:0
[  251.670528]  unevictable:0 dirty:1 writeback:0 unstable:0
[  251.670528]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  251.670528]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  251.670528]  free:13541 free_pcp:161 free_cma:0
[  251.672904] Call Trace:
[  251.682292] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  251.715311]  <IRQ>
[  251.717882] 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
[  251.745815]  dump_stack+0x244/0x39d
[  251.747945] lowmem_reserve[]: 0 2818 6321 6321
[  251.774049]  ? dump_stack_print_info.cold.1+0x20/0x20
[  251.777653] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  251.782246]  warn_alloc.cold.116+0xb7/0x1bd
[  251.787403] lowmem_reserve[]: 0 0 3503 3503
[  251.815456]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  251.819782] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  251.824100]  ? lock_downgrade+0x900/0x900
[  251.828916] lowmem_reserve[]: 0 0 0 0
[  251.858061]  ? trace_hardirqs_off+0xb8/0x310
[  251.862181] 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
[  251.865980]  ? trace_hardirqs_off+0xb8/0x310
[  251.870365] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  251.883900]  __alloc_pages_slowpath+0x26e8/0x2e10
[  251.888287] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  251.903508]  ? warn_alloc+0x120/0x120
[  251.908309] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  251.922779]  ? warn_alloc+0x120/0x120
[  251.926561] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  251.935382]  ? warn_alloc+0x120/0x120
[  251.939160] 4984 total pagecache pages
[  251.947731]  ? print_usage_bug+0xc0/0xc0
[  251.951523] 0 pages in swap cache
[  251.955399]  ? debug_object_activate+0x402/0x600
[  251.959436] Swap cache stats: add 0, delete 0, find 0/0
[  251.962880]  ? print_usage_bug+0xc0/0xc0
[  251.967615] Free swap  = 0kB
[  251.972977]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  251.977011] Total swap = 0kB
[  251.980025]  ? should_fail+0x22d/0xd01
[  251.985535] 1965979 pages RAM
[  251.988551]  ? __lock_acquire+0x62f/0x4c20
[  251.992415] 0 pages HighMem/MovableOnly
[  251.995516]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  251.999725] 342853 pages reserved
[  252.003702]  ? __lock_acquire+0x62f/0x4c20
[  252.008784] 0 pages cma reserved
[  252.012260]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.016539] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  252.019831]  ? __lock_acquire+0x62f/0x4c20
[  252.019845]  ? should_fail+0x22d/0xd01
[  252.019869]  ? mark_held_locks+0x130/0x130
[  252.025017] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  252.031437]  ? mark_held_locks+0x130/0x130
[  252.035652] syz-fuzzer cpuset=/ mems_allowed=0
[  252.039538]  ? mod_timer+0x631/0x1560
[  252.066562]  ? zap_class+0x640/0x640
[  252.070284]  ? print_usage_bug+0xc0/0xc0
[  252.074356]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.079896]  ? check_preemption_disabled+0x48/0x280
[  252.084925]  ? __lock_is_held+0xb5/0x140
[  252.088998]  __alloc_pages_nodemask+0xa80/0xde0
[  252.093670]  ? zap_class+0x640/0x640
[  252.097391]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  252.102423]  ? find_held_lock+0x36/0x1c0
[  252.106493]  ? ____cache_alloc_node+0x1c7/0x1e0
[  252.111167]  ? lock_downgrade+0x900/0x900
[  252.115329]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.120872]  cache_grow_begin+0xa5/0x8c0
[  252.124935]  ? do_raw_spin_unlock+0xa7/0x330
[  252.129357]  fallback_alloc+0x204/0x2e0
[  252.133339]  ____cache_alloc_node+0x1c7/0x1e0
[  252.137847]  kmem_cache_alloc_node+0xe3/0x730
[  252.142344]  ? ipv6_get_ifaddr+0x42e/0x620
[  252.146593]  __alloc_skb+0x119/0x770
[  252.150310]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.155590]  ? netdev_alloc_frag+0x1f0/0x1f0
[  252.160003]  ? lock_downgrade+0x900/0x900
[  252.164163]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.169718]  ? refcount_sub_and_test_checked+0x203/0x310
[  252.175200]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  252.180657]  ? addrconf_rs_timer+0x690/0x690
[  252.185082]  ndisc_alloc_skb+0x144/0x340
[  252.189151]  ndisc_send_rs+0x331/0x6e0
[  252.193075]  addrconf_rs_timer+0x314/0x690
[  252.197346]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.201596]  call_timer_fn+0x272/0x920
[  252.205500]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.209764]  ? process_timeout+0x40/0x40
[  252.213834]  ? __run_timers+0x7da/0xc70
[  252.217813]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.222310]  ? _raw_spin_unlock_irq+0x27/0x80
[  252.226803]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.231051]  ? lockdep_hardirqs_on+0x296/0x5b0
[  252.235635]  ? trace_hardirqs_on+0xbd/0x310
[  252.239961]  ? kasan_check_read+0x11/0x20
[  252.244109]  ? __run_timers+0x7da/0xc70
[  252.248085]  ? trace_hardirqs_off_caller+0x310/0x310
[  252.253218]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  252.257464]  __run_timers+0x7e5/0xc70
[  252.261276]  ? timer_fixup_init+0x70/0x70
[  252.265429]  ? kasan_check_read+0x11/0x20
[  252.269580]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.274856]  ? rcu_softirq_qs+0x20/0x20
[  252.278837]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.284382]  ? check_preemption_disabled+0x48/0x280
[  252.289439]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  252.294210]  ? retint_kernel+0x2d/0x2d
[  252.298119]  ? trace_hardirqs_on_caller+0xc0/0x310
[  252.303050]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  252.307812]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  252.313271]  ? zap_class+0x640/0x640
[  252.316998]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.322536]  ? check_preemption_disabled+0x48/0x280
[  252.327566]  ? __lock_is_held+0xb5/0x140
[  252.331628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.337169]  ? check_preemption_disabled+0x48/0x280
[  252.342200]  run_timer_softirq+0x52/0xb0
[  252.346263]  ? rcu_read_lock_sched_held+0x14f/0x180
[  252.351286]  __do_softirq+0x308/0xb7e
[  252.355091]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  252.359590]  ? lock_downgrade+0x900/0x900
[  252.363753]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  252.368869]  ? pvclock_read_flags+0x160/0x160
[  252.373372]  ? lapic_next_event+0x5a/0x90
[  252.377522]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.383067]  ? kvm_clock_read+0x18/0x30
[  252.387040]  ? kvm_sched_clock_read+0x9/0x20
[  252.391453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.396997]  ? check_preemption_disabled+0x48/0x280
[  252.402025]  irq_exit+0x17f/0x1c0
[  252.405488]  smp_apic_timer_interrupt+0x1cb/0x760
[  252.410329]  ? smp_reschedule_interrupt+0x109/0x650
[  252.415360]  ? smp_call_function_single_interrupt+0x650/0x650
[  252.421271]  ? interrupt_entry+0xb5/0xc0
[  252.425335]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.430350]  ? trace_hardirqs_off_caller+0xbb/0x310
[  252.435387]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.440232]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.445249]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.450268]  ? task_prio+0x50/0x50
[  252.453813]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.459354]  ? check_preemption_disabled+0x48/0x280
[  252.464379]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.469243]  apic_timer_interrupt+0xf/0x20
[  252.473480]  </IRQ>
[  252.475721] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  252.480677] 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
[  252.499575] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  252.507283] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  252.514564] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  252.521846] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  252.529112] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  252.536384] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  252.543694]  skb_clone+0x1bb/0x500
[  252.547238]  ? skb_split+0x11e0/0x11e0
[  252.551131]  ? preempt_notifier_register+0x200/0x200
[  252.556251]  ? __switch_to_asm+0x34/0x70
[  252.560330]  ? __switch_to_asm+0x34/0x70
[  252.564387]  ? __switch_to_asm+0x40/0x70
[  252.568463]  ? __switch_to_asm+0x34/0x70
[  252.572526]  ? __switch_to_asm+0x40/0x70
[  252.576611]  ? __switch_to_asm+0x40/0x70
[  252.580674]  ? __switch_to_asm+0x34/0x70
[  252.584750]  ? __switch_to_asm+0x34/0x70
[  252.588813]  ? __switch_to_asm+0x40/0x70
[  252.592872]  ? __switch_to_asm+0x34/0x70
[  252.596943]  bpf_clone_redirect+0xb9/0x490
[  252.601187]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  252.606209]  ? __sched_text_start+0x8/0x8
[  252.610357]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  252.615120]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  252.619887]  ? find_held_lock+0x36/0x1c0
[  252.623961]  ? lock_acquire+0x1ed/0x520
[  252.627939]  ? bpf_test_run+0x3cb/0x780
[  252.631916]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.637471]  ? check_preemption_disabled+0x48/0x280
[  252.642497]  ? kasan_check_read+0x11/0x20
[  252.646649]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  252.651929]  ? rcu_softirq_qs+0x20/0x20
[  252.655909]  ? preempt_schedule+0x4d/0x60
[  252.660061]  ? ___preempt_schedule+0x16/0x18
[  252.664513]  ? bpf_test_run+0x25d/0x780
[  252.668513]  ? netlink_diag_dump+0x2a0/0x2a0
[  252.672929]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.678468]  ? bpf_test_init.isra.10+0x70/0x100
[  252.683143]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  252.687921]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  252.692777]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  252.698315]  ? fput+0x130/0x1a0
[  252.701616]  ? __bpf_prog_get+0x9b/0x290
[  252.705682]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  252.710522]  ? bpf_prog_test_run+0x130/0x1a0
[  252.714933]  ? __x64_sys_bpf+0x3d8/0x520
[  252.718994]  ? bpf_prog_get+0x20/0x20
[  252.722820]  ? do_syscall_64+0x1b9/0x820
[  252.726886]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  252.732257]  ? syscall_return_slowpath+0x5e0/0x5e0
[  252.737224]  ? trace_hardirqs_on_caller+0x310/0x310
[  252.742238]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  252.747291]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  252.753956]  ? __switch_to_asm+0x40/0x70
[  252.758019]  ? __switch_to_asm+0x34/0x70
[  252.762087]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  252.766940]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  252.772323] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  252.772411] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  252.779256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  252.779265] Call Trace:
[  252.785850] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  252.795202]  <IRQ>
[  252.797778] syz-executor4 cpuset=syz4 mems_allowed=0
[  252.808278]  dump_stack+0x244/0x39d
[  252.819160]  ? dump_stack_print_info.cold.1+0x20/0x20
[  252.824369]  warn_alloc.cold.116+0xb7/0x1bd
[  252.828695]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  252.833544]  ? lock_downgrade+0x900/0x900
[  252.837703]  ? trace_hardirqs_off+0xb8/0x310
[  252.842130]  ? trace_hardirqs_off+0xb8/0x310
[  252.846549]  __alloc_pages_slowpath+0x26e8/0x2e10
[  252.851421]  ? warn_alloc+0x120/0x120
[  252.855244]  ? print_usage_bug+0xc0/0xc0
[  252.859314]  ? warn_alloc+0x120/0x120
[  252.863120]  ? warn_alloc+0x120/0x120
[  252.866924]  ? print_usage_bug+0xc0/0xc0
[  252.870991]  ? print_usage_bug+0xc0/0xc0
[  252.875059]  ? __lock_acquire+0x62f/0x4c20
[  252.879343]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  252.884885]  ? should_fail+0x22d/0xd01
[  252.888779]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.893890]  ? __lock_acquire+0x62f/0x4c20
[  252.898134]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  252.903238]  ? __lock_acquire+0x62f/0x4c20
[  252.907478]  ? should_fail+0x22d/0xd01
[  252.911380]  ? find_held_lock+0x36/0x1c0
[  252.915483]  ? mark_held_locks+0x130/0x130
[  252.919748]  ? mark_held_locks+0x130/0x130
[  252.923987]  ? zap_class+0x640/0x640
[  252.927702]  ? zap_class+0x640/0x640
[  252.931434]  ? print_usage_bug+0xc0/0xc0
[  252.935516]  ? do_raw_spin_unlock+0xa7/0x330
[  252.939927]  ? zap_class+0x640/0x640
[  252.943642]  ? print_usage_bug+0xc0/0xc0
[  252.948188]  ? wq_watchdog_touch+0x9c/0xfe
[  252.952430]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.957974]  ? check_preemption_disabled+0x48/0x280
[  252.963002]  ? __lock_is_held+0xb5/0x140
[  252.967071]  __alloc_pages_nodemask+0xa80/0xde0
[  252.971748]  ? zap_class+0x640/0x640
[  252.975474]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  252.980506]  ? find_held_lock+0x36/0x1c0
[  252.984583]  ? ____cache_alloc_node+0x1c7/0x1e0
[  252.989260]  ? lock_downgrade+0x900/0x900
[  252.993418]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  252.998963]  cache_grow_begin+0xa5/0x8c0
[  253.003023]  ? do_raw_spin_unlock+0xa7/0x330
[  253.007439]  fallback_alloc+0x204/0x2e0
[  253.011424]  ____cache_alloc_node+0x1c7/0x1e0
[  253.015925]  kmem_cache_alloc_node+0xe3/0x730
[  253.020424]  ? ipv6_get_ifaddr+0x42e/0x620
[  253.024669]  __alloc_skb+0x119/0x770
[  253.028384]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.033669]  ? netdev_alloc_frag+0x1f0/0x1f0
[  253.038081]  ? lock_downgrade+0x900/0x900
[  253.042257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.047801]  ? refcount_sub_and_test_checked+0x203/0x310
[  253.053269]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  253.058725]  ? addrconf_rs_timer+0x690/0x690
[  253.063172]  ndisc_alloc_skb+0x144/0x340
[  253.067290]  ndisc_send_rs+0x331/0x6e0
[  253.071206]  addrconf_rs_timer+0x314/0x690
[  253.075459]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.079723]  call_timer_fn+0x272/0x920
[  253.083619]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.087858]  ? process_timeout+0x40/0x40
[  253.091980]  ? mark_held_locks+0xc7/0x130
[  253.096132]  ? _raw_spin_unlock_irq+0x27/0x80
[  253.100627]  ? _raw_spin_unlock_irq+0x27/0x80
[  253.105120]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.109361]  ? lockdep_hardirqs_on+0x296/0x5b0
[  253.113948]  ? trace_hardirqs_on+0xbd/0x310
[  253.118274]  ? kasan_check_read+0x11/0x20
[  253.122439]  ? __run_timers+0x7da/0xc70
[  253.126447]  ? trace_hardirqs_off_caller+0x310/0x310
[  253.131554]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.135798]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  253.140037]  __run_timers+0x7e5/0xc70
[  253.143853]  ? timer_fixup_init+0x70/0x70
[  253.148003]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  253.153026]  ? zap_class+0x640/0x640
[  253.156753]  ? print_usage_bug+0xc0/0xc0
[  253.160820]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  253.166020]  ? find_held_lock+0x36/0x1c0
[  253.170089]  ? zap_class+0x640/0x640
[  253.173811]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.179354]  ? check_preemption_disabled+0x48/0x280
[  253.184408]  ? __lock_is_held+0xb5/0x140
[  253.188489]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.194030]  ? check_preemption_disabled+0x48/0x280
[  253.199061]  run_timer_softirq+0x52/0xb0
[  253.203129]  ? rcu_read_lock_sched_held+0x14f/0x180
[  253.208153]  __do_softirq+0x308/0xb7e
[  253.211969]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  253.216477]  ? lock_downgrade+0x900/0x900
[  253.220657]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  253.225777]  ? pvclock_read_flags+0x160/0x160
[  253.230308]  ? lapic_next_event+0x5a/0x90
[  253.234473]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.240020]  ? kvm_clock_read+0x18/0x30
[  253.243996]  ? kvm_sched_clock_read+0x9/0x20
[  253.248409]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.253947]  ? check_preemption_disabled+0x48/0x280
[  253.258975]  irq_exit+0x17f/0x1c0
[  253.262428]  smp_apic_timer_interrupt+0x1cb/0x760
[  253.267300]  ? smp_reschedule_interrupt+0x109/0x650
[  253.272337]  ? smp_call_function_single_interrupt+0x650/0x650
[  253.278219]  ? interrupt_entry+0xb5/0xc0
[  253.282299]  ? trace_hardirqs_off_caller+0xbb/0x310
[  253.287319]  ? trace_hardirqs_off_caller+0xbb/0x310
[  253.292336]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.297188]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.302205]  ? trace_hardirqs_on_caller+0x310/0x310
[  253.307222]  ? task_prio+0x50/0x50
[  253.310778]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.316321]  ? check_preemption_disabled+0x48/0x280
[  253.321348]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  253.326203]  apic_timer_interrupt+0xf/0x20
[  253.330430]  </IRQ>
[  253.332669] RIP: 0010:check_memory_region+0x121/0x1b0
[  253.337861] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  253.356768] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  253.364476] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  253.371755] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  253.379029] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  253.386295] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  253.393561] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  253.400846]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.406133]  kasan_check_read+0x11/0x20
[  253.410109]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.415212]  ? rcu_softirq_qs+0x20/0x20
[  253.419205]  rcu_is_watching+0x10/0x30
[  253.423094]  list_lru_count_one+0x362/0x450
[  253.427419]  ? list_lru_isolate_move+0x3c0/0x3c0
[  253.432175]  ? shmem_free_inode+0xd0/0xd0
[  253.436325]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.441866]  ? ubifs_shrink_count+0xc4/0x100
[  253.446291]  super_cache_count+0x153/0x2e0
[  253.450541]  do_shrink_slab+0x1b1/0xd30
[  253.454616]  ? lock_acquire+0x1ed/0x520
[  253.458594]  ? snapshot_refaults+0x290/0x290
[  253.463009]  ? lock_release+0xa00/0xa00
[  253.467007]  ? perf_trace_sched_process_exec+0x860/0x860
[  253.472487]  ? down_read_trylock+0xda/0x140
[  253.476812]  ? shrink_slab+0x207/0x8c0
[  253.480702]  ? downgrade_write+0x270/0x270
[  253.484965]  shrink_slab+0x389/0x8c0
[  253.488683]  ? shrink_active_list+0x1f00/0x1f00
[  253.493360]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  253.498994]  ? kasan_check_read+0x11/0x20
[  253.503145]  ? do_raw_spin_unlock+0xa7/0x330
[  253.507558]  ? ___preempt_schedule+0x16/0x18
[  253.511974]  ? _raw_spin_unlock+0x3f/0x50
[  253.516129]  shrink_node+0x431/0x16b0
[  253.519934]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  253.525260]  ? shrink_node_memcg+0x18f0/0x18f0
[  253.529877]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  253.534472]  ? trace_hardirqs_on+0xbd/0x310
[  253.538793]  ? vmpressure+0x271/0x340
[  253.542602]  ? do_raw_spin_trylock+0x270/0x270
[  253.547196]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  253.552747]  ? __cpuset_node_allowed+0x19b/0x660
[  253.557523]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  253.563237]  ? vmpressure+0x1a2/0x340
[  253.567055]  do_try_to_free_pages+0x3e7/0x1290
[  253.571679]  ? zap_class+0x640/0x640
[  253.575424]  ? shrink_node+0x16b0/0x16b0
[  253.579500]  ? __lock_is_held+0xb5/0x140
[  253.583574]  try_to_free_pages+0x4d0/0xb90
[  253.587821]  ? do_try_to_free_pages+0x1290/0x1290
[  253.592689]  ? lock_acquire+0x1ed/0x520
[  253.596687]  ? set_page_refcounted+0x280/0x280
[  253.601285]  ? lock_release+0xa00/0xa00
[  253.605281]  ? _raw_spin_unlock_irq+0x60/0x80
[  253.609790]  ? psi_memstall_enter+0x240/0x2b0
[  253.614308]  ? psi_memstall_tick+0x230/0x230
[  253.618727]  __alloc_pages_slowpath+0xa14/0x2e10
[  253.623560]  ? warn_alloc+0x120/0x120
[  253.627359]  ? mark_held_locks+0x130/0x130
[  253.631602]  ? find_get_entry+0xaae/0x1120
[  253.635852]  ? filemap_map_pages+0x1a20/0x1a20
[  253.640439]  ? zap_class+0x640/0x640
[  253.644160]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  253.649731]  ? check_preemption_disabled+0x48/0x280
[  253.654765]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.660308]  ? should_fail+0x22d/0xd01
[  253.664204]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  253.669309]  ? zap_class+0x640/0x640
[  253.673053]  ? __lock_is_held+0xb5/0x140
[  253.677123]  ? mark_held_locks+0x130/0x130
[  253.681382]  ? lock_release+0xa00/0xa00
[  253.685385]  ? perf_trace_sched_process_exec+0x860/0x860
[  253.690840]  ? xa_load+0x2ba/0x460
[  253.694401]  ? lock_downgrade+0x900/0x900
[  253.698559]  ? __might_sleep+0x95/0x190
[  253.702542]  __alloc_pages_nodemask+0xa80/0xde0
[  253.707219]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  253.712245]  ? __page_cache_alloc+0x191/0x5c0
[  253.716754]  ? xa_load+0x2e1/0x460
[  253.720298]  ? xa_clear_mark+0x40/0x40
[  253.724187]  ? zap_class+0x640/0x640
[  253.727914]  ? zap_class+0x640/0x640
[  253.731629]  ? zap_class+0x640/0x640
[  253.735352]  ? __do_page_cache_readahead+0x663/0x810
[  253.740463]  ? find_held_lock+0x36/0x1c0
[  253.744535]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  253.750084]  alloc_pages_current+0x173/0x350
[  253.754526]  __page_cache_alloc+0x38c/0x5c0
[  253.758846]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.763775]  ? kasan_check_read+0x11/0x20
[  253.767925]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.773204]  ? generic_perform_write+0x6a0/0x6a0
[  253.778010]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.783561]  ? check_preemption_disabled+0x48/0x280
[  253.788602]  filemap_fault+0x1595/0x25f0
[  253.792684]  ? __lock_page_or_retry+0xa00/0xa00
[  253.797373]  ? mark_held_locks+0x130/0x130
[  253.801619]  ? filemap_map_pages+0xd6b/0x1a20
[  253.806119]  ? lock_downgrade+0x900/0x900
[  253.810286]  ? check_preemption_disabled+0x48/0x280
[  253.815456]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.820392]  ? kasan_check_read+0x11/0x20
[  253.824545]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.829837]  ? rcu_softirq_qs+0x20/0x20
[  253.833825]  ? filemap_map_pages+0xd92/0x1a20
[  253.838335]  ? find_get_entries_tag+0x1400/0x1400
[  253.843176]  ? find_held_lock+0x36/0x1c0
[  253.847266]  ? lock_acquire+0x1ed/0x520
[  253.851245]  ? ext4_filemap_fault+0x7a/0xad
[  253.855665]  ? lock_release+0xa00/0xa00
[  253.859639]  ? perf_trace_sched_process_exec+0x860/0x860
[  253.865094]  ? print_usage_bug+0xc0/0xc0
[  253.869173]  ? down_read+0x8d/0x120
[  253.872802]  ? ext4_filemap_fault+0x7a/0xad
[  253.877138]  ? __down_interruptible+0x700/0x700
[  253.881812]  ? find_held_lock+0x36/0x1c0
[  253.885878]  ext4_filemap_fault+0x82/0xad
[  253.890036]  __do_fault+0x100/0x6b0
[  253.893671]  ? lock_downgrade+0x900/0x900
[  253.897836]  ? pmd_devmap_trans_unstable+0x220/0x220
[  253.902953]  ? kasan_check_read+0x11/0x20
[  253.907119]  ? do_raw_spin_unlock+0xa7/0x330
[  253.911529]  ? do_raw_spin_trylock+0x270/0x270
[  253.916146]  __handle_mm_fault+0x3ea0/0x5be0
[  253.920563]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  253.925418]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  253.930014]  ? zap_class+0x640/0x640
[  253.933728]  ? zap_class+0x640/0x640
[  253.937452]  ? __x64_sys_futex+0x53e/0x6a0
[  253.941694]  ? find_held_lock+0x36/0x1c0
[  253.945778]  ? handle_mm_fault+0x42a/0xc70
[  253.950017]  ? lock_downgrade+0x900/0x900
[  253.954169]  ? check_preemption_disabled+0x48/0x280
[  253.959196]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  253.964127]  ? kasan_check_read+0x11/0x20
[  253.968291]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  253.973570]  ? rcu_softirq_qs+0x20/0x20
[  253.977545]  ? trace_hardirqs_off_caller+0x310/0x310
[  253.982650]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  253.988191]  ? check_preemption_disabled+0x48/0x280
[  253.993219]  handle_mm_fault+0x54f/0xc70
[  253.997303]  ? __handle_mm_fault+0x5be0/0x5be0
[  254.001896]  ? find_vma+0x34/0x190
[  254.005446]  __do_page_fault+0x5e8/0xe60
[  254.009507]  ? trace_hardirqs_off+0xb8/0x310
[  254.013927]  do_page_fault+0xf2/0x7e0
[  254.017730]  ? vmalloc_sync_all+0x30/0x30
[  254.021889]  ? error_entry+0x70/0xd0
[  254.025607]  ? trace_hardirqs_off_caller+0xbb/0x310
[  254.030626]  ? trace_hardirqs_on_caller+0xc0/0x310
[  254.035557]  ? syscall_return_slowpath+0x5e0/0x5e0
[  254.040491]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.045335]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.050353]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  254.055811]  ? prepare_exit_to_usermode+0x291/0x3b0
[  254.060829]  ? page_fault+0x8/0x30
[  254.064377]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.069227]  ? page_fault+0x8/0x30
[  254.072773]  page_fault+0x1e/0x30
[  254.076227] RIP: 0033:0x404068
[  254.079439] Code: Bad RIP value.
[  254.082805] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  254.088170] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  254.095439] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  254.102711] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  254.109987] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  254.117269] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  254.124578] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  254.124583] warn_alloc_show_mem: 1 callbacks suppressed
[  254.124590] Mem-Info:
[  254.131869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  254.137236] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  254.137236]  active_file:13 inactive_file:28 isolated_file:0
[  254.137236]  unevictable:0 dirty:1 writeback:0 unstable:0
[  254.137236]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  254.137236]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  254.137236]  free:13541 free_pcp:161 free_cma:0
[  254.139610] Call Trace:
[  254.149000] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  254.182017]  <IRQ>
[  254.184590] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  254.212630]  dump_stack+0x244/0x39d
[  254.214786] lowmem_reserve[]: 0 2818 6321 6321
[  254.240891]  ? dump_stack_print_info.cold.1+0x20/0x20
[  254.244490] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  254.249071]  warn_alloc.cold.116+0xb7/0x1bd
[  254.254228] lowmem_reserve[]: 0 0 3503 3503
[  254.281807]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  254.286103] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  254.290437]  ? lock_downgrade+0x900/0x900
[  254.295270] lowmem_reserve[]: 0 0 0 0
[  254.324416]  ? trace_hardirqs_off+0xb8/0x310
[  254.328540] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  254.332349]  ? trace_hardirqs_off+0xb8/0x310
[  254.336734] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  254.350307]  __alloc_pages_slowpath+0x26e8/0x2e10
[  254.354688] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  254.369889]  ? warn_alloc+0x120/0x120
[  254.374697] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  254.389182]  ? print_usage_bug+0xc0/0xc0
[  254.392963] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  254.401787]  ? warn_alloc+0x120/0x120
[  254.405835] 4984 total pagecache pages
[  254.414409]  ? warn_alloc+0x120/0x120
[  254.418196] 0 pages in swap cache
[  254.422069]  ? print_usage_bug+0xc0/0xc0
[  254.425853] Swap cache stats: add 0, delete 0, find 0/0
[  254.429297]  ? kvm_clock_read+0x18/0x30
[  254.433337] Free swap  = 0kB
[  254.438696]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  254.442643] Total swap = 0kB
[  254.445655]  ? print_usage_bug+0xc0/0xc0
[  254.450645] 1965979 pages RAM
[  254.453678]  ? __lock_acquire+0x62f/0x4c20
[  254.457713] 0 pages HighMem/MovableOnly
[  254.460822]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.465032] 342853 pages reserved
[  254.468998]  ? should_fail+0x22d/0xd01
[  254.474523] 0 pages cma reserved
[  254.477967]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.481897] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  254.485197]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.490581] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  254.496972]  ? __lock_acquire+0x62f/0x4c20
[  254.502056] syz-fuzzer cpuset=/ mems_allowed=0
[  254.512305]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  254.526184]  ? __lock_acquire+0x62f/0x4c20
[  254.530417]  ? should_fail+0x22d/0xd01
[  254.534301]  ? rcu_irq_exit+0x1a2/0x390
[  254.538283]  ? mark_held_locks+0x130/0x130
[  254.542525]  ? mark_held_locks+0x130/0x130
[  254.546776]  ? mark_held_locks+0xc7/0x130
[  254.550925]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  254.555947]  ? zap_class+0x640/0x640
[  254.559668]  ? print_usage_bug+0xc0/0xc0
[  254.563744]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.569304]  ? check_preemption_disabled+0x48/0x280
[  254.574335]  ? __lock_is_held+0xb5/0x140
[  254.578407]  __alloc_pages_nodemask+0xa80/0xde0
[  254.583077]  ? zap_class+0x640/0x640
[  254.586802]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  254.591842]  ? find_held_lock+0x36/0x1c0
[  254.595920]  ? ____cache_alloc_node+0x1c7/0x1e0
[  254.600590]  ? lock_downgrade+0x900/0x900
[  254.604765]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.610312]  cache_grow_begin+0xa5/0x8c0
[  254.614373]  ? do_raw_spin_unlock+0xa7/0x330
[  254.618790]  fallback_alloc+0x204/0x2e0
[  254.622781]  ____cache_alloc_node+0x1c7/0x1e0
[  254.627296]  kmem_cache_alloc_node+0xe3/0x730
[  254.631794]  ? ipv6_get_ifaddr+0x42e/0x620
[  254.636040]  __alloc_skb+0x119/0x770
[  254.639763]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.645047]  ? netdev_alloc_frag+0x1f0/0x1f0
[  254.649460]  ? lock_downgrade+0x900/0x900
[  254.653616]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.659154]  ? refcount_sub_and_test_checked+0x203/0x310
[  254.664624]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  254.670092]  ? addrconf_rs_timer+0x690/0x690
[  254.674519]  ndisc_alloc_skb+0x144/0x340
[  254.678588]  ndisc_send_rs+0x331/0x6e0
[  254.682486]  addrconf_rs_timer+0x314/0x690
[  254.686730]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.690994]  call_timer_fn+0x272/0x920
[  254.694882]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.699122]  ? process_timeout+0x40/0x40
[  254.703218]  ? __run_timers+0x7da/0xc70
[  254.707207]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.711700]  ? _raw_spin_unlock_irq+0x27/0x80
[  254.716198]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.720436]  ? lockdep_hardirqs_on+0x296/0x5b0
[  254.725028]  ? trace_hardirqs_on+0xbd/0x310
[  254.729351]  ? kasan_check_read+0x11/0x20
[  254.733522]  ? __run_timers+0x7da/0xc70
[  254.737512]  ? trace_hardirqs_off_caller+0x310/0x310
[  254.742657]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.746899]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  254.751131]  __run_timers+0x7e5/0xc70
[  254.754948]  ? timer_fixup_init+0x70/0x70
[  254.759097]  ? kasan_check_read+0x11/0x20
[  254.763244]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  254.768519]  ? rcu_softirq_qs+0x20/0x20
[  254.772493]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.778046]  ? check_preemption_disabled+0x48/0x280
[  254.783071]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  254.787829]  ? retint_kernel+0x2d/0x2d
[  254.791720]  ? trace_hardirqs_on_caller+0xc0/0x310
[  254.796662]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  254.801444]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  254.806900]  ? zap_class+0x640/0x640
[  254.810624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.816166]  ? check_preemption_disabled+0x48/0x280
[  254.821194]  ? __lock_is_held+0xb5/0x140
[  254.825260]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.830804]  ? check_preemption_disabled+0x48/0x280
[  254.835829]  run_timer_softirq+0x52/0xb0
[  254.839890]  ? rcu_read_lock_sched_held+0x14f/0x180
[  254.844908]  __do_softirq+0x308/0xb7e
[  254.848719]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  254.853226]  ? lock_downgrade+0x900/0x900
[  254.857471]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  254.862583]  ? pvclock_read_flags+0x160/0x160
[  254.867085]  ? lapic_next_event+0x5a/0x90
[  254.871238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.876791]  ? kvm_clock_read+0x18/0x30
[  254.880775]  ? kvm_sched_clock_read+0x9/0x20
[  254.885186]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  254.890725]  ? check_preemption_disabled+0x48/0x280
[  254.895829]  irq_exit+0x17f/0x1c0
[  254.899287]  smp_apic_timer_interrupt+0x1cb/0x760
[  254.904131]  ? smp_reschedule_interrupt+0x109/0x650
[  254.909198]  ? smp_call_function_single_interrupt+0x650/0x650
[  254.915100]  ? interrupt_entry+0xb5/0xc0
[  254.919184]  ? trace_hardirqs_off_caller+0xbb/0x310
[  254.924230]  ? trace_hardirqs_off_caller+0xbb/0x310
[  254.929293]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.934137]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.939157]  ? trace_hardirqs_on_caller+0x310/0x310
[  254.944178]  ? task_prio+0x50/0x50
[  254.947900]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  254.953444]  ? check_preemption_disabled+0x48/0x280
[  254.958464]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  254.963319]  apic_timer_interrupt+0xf/0x20
[  254.967548]  </IRQ>
[  254.969789] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  254.974722] 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
[  254.993629] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  255.001351] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  255.008614] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  255.015881] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  255.023152] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  255.030420] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  255.037795]  skb_clone+0x1bb/0x500
[  255.041382]  ? skb_split+0x11e0/0x11e0
[  255.045279]  ? preempt_notifier_register+0x200/0x200
[  255.050396]  ? __switch_to_asm+0x34/0x70
[  255.054456]  ? __switch_to_asm+0x34/0x70
[  255.058517]  ? __switch_to_asm+0x40/0x70
[  255.062575]  ? __switch_to_asm+0x34/0x70
[  255.066632]  ? __switch_to_asm+0x40/0x70
[  255.070696]  ? __switch_to_asm+0x40/0x70
[  255.074767]  ? __switch_to_asm+0x34/0x70
[  255.078829]  ? __switch_to_asm+0x34/0x70
[  255.082886]  ? __switch_to_asm+0x40/0x70
[  255.086943]  ? __switch_to_asm+0x34/0x70
[  255.091012]  bpf_clone_redirect+0xb9/0x490
[  255.095287]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  255.100306]  ? __sched_text_start+0x8/0x8
[  255.104459]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  255.109221]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  255.113988]  ? find_held_lock+0x36/0x1c0
[  255.118062]  ? lock_acquire+0x1ed/0x520
[  255.122042]  ? bpf_test_run+0x3cb/0x780
[  255.126018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.131560]  ? check_preemption_disabled+0x48/0x280
[  255.136585]  ? kasan_check_read+0x11/0x20
[  255.140745]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.146028]  ? rcu_softirq_qs+0x20/0x20
[  255.150010]  ? preempt_schedule+0x4d/0x60
[  255.154161]  ? ___preempt_schedule+0x16/0x18
[  255.158581]  ? bpf_test_run+0x25d/0x780
[  255.162572]  ? netlink_diag_dump+0x2a0/0x2a0
[  255.166986]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.172525]  ? bpf_test_init.isra.10+0x70/0x100
[  255.177200]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  255.181966]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  255.186830]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  255.192383]  ? fput+0x130/0x1a0
[  255.195670]  ? __bpf_prog_get+0x9b/0x290
[  255.199746]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  255.204592]  ? bpf_prog_test_run+0x130/0x1a0
[  255.209003]  ? __x64_sys_bpf+0x3d8/0x520
[  255.213069]  ? bpf_prog_get+0x20/0x20
[  255.216895]  ? do_syscall_64+0x1b9/0x820
[  255.220958]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  255.226330]  ? syscall_return_slowpath+0x5e0/0x5e0
[  255.231267]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.236286]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  255.241318]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  255.247986]  ? __switch_to_asm+0x40/0x70
[  255.252045]  ? __switch_to_asm+0x34/0x70
[  255.256119]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.260971]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  255.266358] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  255.266427] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  255.273287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  255.273292] Call Trace:
[  255.273299]  <IRQ>
[  255.273317]  dump_stack+0x244/0x39d
[  255.273335]  ? dump_stack_print_info.cold.1+0x20/0x20
[  255.279899] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  255.289173]  warn_alloc.cold.116+0xb7/0x1bd
[  255.291745] syz-executor4 cpuset=syz4 mems_allowed=0
[  255.293907]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  255.327391]  ? lock_downgrade+0x900/0x900
[  255.331550]  ? trace_hardirqs_off+0xb8/0x310
[  255.335968]  ? trace_hardirqs_off+0xb8/0x310
[  255.340393]  __alloc_pages_slowpath+0x26e8/0x2e10
[  255.345274]  ? warn_alloc+0x120/0x120
[  255.349079]  ? print_usage_bug+0xc0/0xc0
[  255.353146]  ? warn_alloc+0x120/0x120
[  255.356956]  ? warn_alloc+0x120/0x120
[  255.360768]  ? print_usage_bug+0xc0/0xc0
[  255.364833]  ? kvm_clock_read+0x18/0x30
[  255.368810]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  255.373828]  ? print_usage_bug+0xc0/0xc0
[  255.377893]  ? __lock_acquire+0x62f/0x4c20
[  255.382138]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.387679]  ? should_fail+0x22d/0xd01
[  255.391580]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.396874]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.401980]  ? __lock_acquire+0x62f/0x4c20
[  255.406220]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  255.411326]  ? __lock_acquire+0x62f/0x4c20
[  255.415591]  ? should_fail+0x22d/0xd01
[  255.419476]  ? rcu_irq_exit+0x1a2/0x390
[  255.423466]  ? mark_held_locks+0x130/0x130
[  255.427706]  ? mark_held_locks+0x130/0x130
[  255.431959]  ? mark_held_locks+0xc7/0x130
[  255.436112]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  255.441136]  ? zap_class+0x640/0x640
[  255.444854]  ? print_usage_bug+0xc0/0xc0
[  255.448928]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.454468]  ? check_preemption_disabled+0x48/0x280
[  255.459497]  ? __lock_is_held+0xb5/0x140
[  255.463568]  __alloc_pages_nodemask+0xa80/0xde0
[  255.468238]  ? zap_class+0x640/0x640
[  255.471974]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  255.477005]  ? find_held_lock+0x36/0x1c0
[  255.481081]  ? ____cache_alloc_node+0x1c7/0x1e0
[  255.485763]  ? lock_downgrade+0x900/0x900
[  255.489925]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.495473]  cache_grow_begin+0xa5/0x8c0
[  255.499534]  ? do_raw_spin_unlock+0xa7/0x330
[  255.503951]  fallback_alloc+0x204/0x2e0
[  255.507934]  ____cache_alloc_node+0x1c7/0x1e0
[  255.512439]  kmem_cache_alloc_node+0xe3/0x730
[  255.516940]  ? ipv6_get_ifaddr+0x42e/0x620
[  255.521187]  __alloc_skb+0x119/0x770
[  255.524906]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.530191]  ? netdev_alloc_frag+0x1f0/0x1f0
[  255.534601]  ? lock_downgrade+0x900/0x900
[  255.538767]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.544309]  ? refcount_sub_and_test_checked+0x203/0x310
[  255.549775]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  255.555230]  ? addrconf_rs_timer+0x690/0x690
[  255.559658]  ndisc_alloc_skb+0x144/0x340
[  255.563814]  ndisc_send_rs+0x331/0x6e0
[  255.567715]  addrconf_rs_timer+0x314/0x690
[  255.571963]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.576214]  call_timer_fn+0x272/0x920
[  255.580109]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.584344]  ? process_timeout+0x40/0x40
[  255.588415]  ? mark_held_locks+0xc7/0x130
[  255.592569]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.597067]  ? _raw_spin_unlock_irq+0x27/0x80
[  255.601566]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.605809]  ? lockdep_hardirqs_on+0x296/0x5b0
[  255.610398]  ? trace_hardirqs_on+0xbd/0x310
[  255.614756]  ? kasan_check_read+0x11/0x20
[  255.618902]  ? __run_timers+0x7da/0xc70
[  255.622878]  ? trace_hardirqs_off_caller+0x310/0x310
[  255.627988]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.632229]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  255.636475]  __run_timers+0x7e5/0xc70
[  255.640295]  ? timer_fixup_init+0x70/0x70
[  255.644450]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  255.649471]  ? zap_class+0x640/0x640
[  255.653208]  ? print_usage_bug+0xc0/0xc0
[  255.657273]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  255.662471]  ? find_held_lock+0x36/0x1c0
[  255.666538]  ? zap_class+0x640/0x640
[  255.670264]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.675804]  ? check_preemption_disabled+0x48/0x280
[  255.680831]  ? __lock_is_held+0xb5/0x140
[  255.684894]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.690466]  ? check_preemption_disabled+0x48/0x280
[  255.695518]  run_timer_softirq+0x52/0xb0
[  255.699585]  ? rcu_read_lock_sched_held+0x14f/0x180
[  255.704620]  __do_softirq+0x308/0xb7e
[  255.708446]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  255.712960]  ? lock_downgrade+0x900/0x900
[  255.717113]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  255.722261]  ? pvclock_read_flags+0x160/0x160
[  255.726776]  ? lapic_next_event+0x5a/0x90
[  255.730929]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.736473]  ? kvm_clock_read+0x18/0x30
[  255.740452]  ? kvm_sched_clock_read+0x9/0x20
[  255.744862]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.750406]  ? check_preemption_disabled+0x48/0x280
[  255.755430]  irq_exit+0x17f/0x1c0
[  255.758922]  smp_apic_timer_interrupt+0x1cb/0x760
[  255.763769]  ? smp_reschedule_interrupt+0x109/0x650
[  255.768788]  ? smp_call_function_single_interrupt+0x650/0x650
[  255.774686]  ? interrupt_entry+0xb5/0xc0
[  255.778761]  ? trace_hardirqs_off_caller+0xbb/0x310
[  255.783778]  ? trace_hardirqs_off_caller+0xbb/0x310
[  255.788810]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.793657]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.798673]  ? trace_hardirqs_on_caller+0x310/0x310
[  255.803693]  ? task_prio+0x50/0x50
[  255.807236]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  255.812784]  ? check_preemption_disabled+0x48/0x280
[  255.818046]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  255.822898]  apic_timer_interrupt+0xf/0x20
[  255.827130]  </IRQ>
[  255.829373] RIP: 0010:check_memory_region+0x121/0x1b0
[  255.834566] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  255.853478] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  255.861199] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  255.868466] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  255.875731] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  255.883004] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  255.890279] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  255.897564]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.902881]  kasan_check_read+0x11/0x20
[  255.906874]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  255.911980]  ? rcu_softirq_qs+0x20/0x20
[  255.915967]  rcu_is_watching+0x10/0x30
[  255.919856]  list_lru_count_one+0x362/0x450
[  255.924180]  ? list_lru_isolate_move+0x3c0/0x3c0
[  255.928941]  ? shmem_free_inode+0xd0/0xd0
[  255.933141]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  255.938684]  ? ubifs_shrink_count+0xc4/0x100
[  255.943287]  super_cache_count+0x153/0x2e0
[  255.947535]  do_shrink_slab+0x1b1/0xd30
[  255.951521]  ? lock_acquire+0x1ed/0x520
[  255.955503]  ? snapshot_refaults+0x290/0x290
[  255.959920]  ? lock_release+0xa00/0xa00
[  255.963907]  ? perf_trace_sched_process_exec+0x860/0x860
[  255.969370]  ? down_read_trylock+0xda/0x140
[  255.973691]  ? shrink_slab+0x207/0x8c0
[  255.977580]  ? downgrade_write+0x270/0x270
[  255.981830]  shrink_slab+0x389/0x8c0
[  255.985551]  ? shrink_active_list+0x1f00/0x1f00
[  255.990235]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  255.995878]  ? kasan_check_read+0x11/0x20
[  256.000029]  ? do_raw_spin_unlock+0xa7/0x330
[  256.004443]  ? ___preempt_schedule+0x16/0x18
[  256.008867]  ? _raw_spin_unlock+0x3f/0x50
[  256.013027]  shrink_node+0x431/0x16b0
[  256.016833]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  256.022136]  ? shrink_node_memcg+0x18f0/0x18f0
[  256.026721]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  256.031316]  ? trace_hardirqs_on+0xbd/0x310
[  256.035640]  ? vmpressure+0x271/0x340
[  256.039445]  ? do_raw_spin_trylock+0x270/0x270
[  256.044038]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  256.049578]  ? __cpuset_node_allowed+0x19b/0x660
[  256.054343]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  256.060056]  ? vmpressure+0x1a2/0x340
[  256.063867]  do_try_to_free_pages+0x3e7/0x1290
[  256.068450]  ? zap_class+0x640/0x640
[  256.072186]  ? shrink_node+0x16b0/0x16b0
[  256.076255]  ? __lock_is_held+0xb5/0x140
[  256.080332]  try_to_free_pages+0x4d0/0xb90
[  256.084588]  ? do_try_to_free_pages+0x1290/0x1290
[  256.089477]  ? lock_acquire+0x1ed/0x520
[  256.093453]  ? set_page_refcounted+0x280/0x280
[  256.098045]  ? lock_release+0xa00/0xa00
[  256.102024]  ? _raw_spin_unlock_irq+0x60/0x80
[  256.106522]  ? psi_memstall_enter+0x240/0x2b0
[  256.111020]  ? psi_memstall_tick+0x230/0x230
[  256.115444]  __alloc_pages_slowpath+0xa14/0x2e10
[  256.120235]  ? warn_alloc+0x120/0x120
[  256.124043]  ? mark_held_locks+0x130/0x130
[  256.128286]  ? find_get_entry+0xaae/0x1120
[  256.132534]  ? filemap_map_pages+0x1a20/0x1a20
[  256.137127]  ? zap_class+0x640/0x640
[  256.140849]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  256.146392]  ? check_preemption_disabled+0x48/0x280
[  256.151412]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.156954]  ? should_fail+0x22d/0xd01
[  256.160847]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  256.165954]  ? zap_class+0x640/0x640
[  256.169693]  ? __lock_is_held+0xb5/0x140
[  256.173777]  ? mark_held_locks+0x130/0x130
[  256.178027]  ? lock_release+0xa00/0xa00
[  256.182003]  ? perf_trace_sched_process_exec+0x860/0x860
[  256.187460]  ? xa_load+0x2ba/0x460
[  256.191004]  ? lock_downgrade+0x900/0x900
[  256.195159]  ? __might_sleep+0x95/0x190
[  256.199141]  __alloc_pages_nodemask+0xa80/0xde0
[  256.203834]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  256.208854]  ? __page_cache_alloc+0x191/0x5c0
[  256.213355]  ? xa_load+0x2e1/0x460
[  256.216902]  ? xa_clear_mark+0x40/0x40
[  256.220795]  ? zap_class+0x640/0x640
[  256.224519]  ? zap_class+0x640/0x640
[  256.228235]  ? zap_class+0x640/0x640
[  256.231959]  ? __do_page_cache_readahead+0x663/0x810
[  256.237068]  ? find_held_lock+0x36/0x1c0
[  256.241139]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  256.246689]  alloc_pages_current+0x173/0x350
[  256.251108]  __page_cache_alloc+0x38c/0x5c0
[  256.255430]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.260364]  ? kasan_check_read+0x11/0x20
[  256.264512]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.269797]  ? generic_perform_write+0x6a0/0x6a0
[  256.274558]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.280100]  ? check_preemption_disabled+0x48/0x280
[  256.285131]  filemap_fault+0x1595/0x25f0
[  256.289255]  ? __lock_page_or_retry+0xa00/0xa00
[  256.293927]  ? mark_held_locks+0x130/0x130
[  256.298175]  ? filemap_map_pages+0xd6b/0x1a20
[  256.302671]  ? lock_downgrade+0x900/0x900
[  256.306819]  ? check_preemption_disabled+0x48/0x280
[  256.311842]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.316784]  ? kasan_check_read+0x11/0x20
[  256.320938]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.326219]  ? rcu_softirq_qs+0x20/0x20
[  256.330215]  ? filemap_map_pages+0xd92/0x1a20
[  256.334729]  ? find_get_entries_tag+0x1400/0x1400
[  256.339585]  ? find_held_lock+0x36/0x1c0
[  256.343674]  ? lock_acquire+0x1ed/0x520
[  256.347651]  ? ext4_filemap_fault+0x7a/0xad
[  256.351983]  ? lock_release+0xa00/0xa00
[  256.355957]  ? perf_trace_sched_process_exec+0x860/0x860
[  256.361411]  ? print_usage_bug+0xc0/0xc0
[  256.365522]  ? down_read+0x8d/0x120
[  256.369147]  ? ext4_filemap_fault+0x7a/0xad
[  256.373475]  ? __down_interruptible+0x700/0x700
[  256.378157]  ? find_held_lock+0x36/0x1c0
[  256.382227]  ext4_filemap_fault+0x82/0xad
[  256.386384]  __do_fault+0x100/0x6b0
[  256.390018]  ? lock_downgrade+0x900/0x900
[  256.394170]  ? pmd_devmap_trans_unstable+0x220/0x220
[  256.399288]  ? kasan_check_read+0x11/0x20
[  256.403437]  ? do_raw_spin_unlock+0xa7/0x330
[  256.407853]  ? do_raw_spin_trylock+0x270/0x270
[  256.412450]  __handle_mm_fault+0x3ea0/0x5be0
[  256.416870]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  256.421725]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  256.426331]  ? zap_class+0x640/0x640
[  256.430044]  ? zap_class+0x640/0x640
[  256.433764]  ? __x64_sys_futex+0x53e/0x6a0
[  256.438009]  ? find_held_lock+0x36/0x1c0
[  256.442084]  ? handle_mm_fault+0x42a/0xc70
[  256.446325]  ? lock_downgrade+0x900/0x900
[  256.450476]  ? check_preemption_disabled+0x48/0x280
[  256.455499]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  256.460434]  ? kasan_check_read+0x11/0x20
[  256.464583]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.469860]  ? rcu_softirq_qs+0x20/0x20
[  256.473845]  ? trace_hardirqs_off_caller+0x310/0x310
[  256.478953]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.484499]  ? check_preemption_disabled+0x48/0x280
[  256.489528]  handle_mm_fault+0x54f/0xc70
[  256.493602]  ? __handle_mm_fault+0x5be0/0x5be0
[  256.498196]  ? find_vma+0x34/0x190
[  256.501756]  __do_page_fault+0x5e8/0xe60
[  256.505821]  ? trace_hardirqs_off+0xb8/0x310
[  256.510242]  do_page_fault+0xf2/0x7e0
[  256.514052]  ? vmalloc_sync_all+0x30/0x30
[  256.518205]  ? error_entry+0x70/0xd0
[  256.521927]  ? trace_hardirqs_off_caller+0xbb/0x310
[  256.526947]  ? trace_hardirqs_on_caller+0xc0/0x310
[  256.531895]  ? syscall_return_slowpath+0x5e0/0x5e0
[  256.536832]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.541678]  ? trace_hardirqs_on_caller+0x310/0x310
[  256.546700]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  256.552157]  ? prepare_exit_to_usermode+0x291/0x3b0
[  256.557177]  ? page_fault+0x8/0x30
[  256.560726]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  256.565580]  ? page_fault+0x8/0x30
[  256.569125]  page_fault+0x1e/0x30
[  256.572578] RIP: 0033:0x404068
[  256.575789] Code: Bad RIP value.
[  256.579152] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  256.584515] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  256.591788] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  256.599057] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  256.606330] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  256.613597] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  256.620891] warn_alloc_show_mem: 1 callbacks suppressed
[  256.620904] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  256.620905] Mem-Info:
[  256.620937] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  256.620937]  active_file:13 inactive_file:28 isolated_file:0
[  256.620937]  unevictable:0 dirty:1 writeback:0 unstable:0
[  256.620937]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  256.620937]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  256.620937]  free:13541 free_pcp:161 free_cma:0
[  256.626281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  256.633560] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  256.635956] Call Trace:
[  256.669006] 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
[  256.678368]  <IRQ>
[  256.706283] lowmem_reserve[]: 0 2818 6321 6321
[  256.708888]  dump_stack+0x244/0x39d
[  256.734972] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  256.737130]  ? dump_stack_print_info.cold.1+0x20/0x20
[  256.741683] lowmem_reserve[]: 0 0 3503 3503
[  256.745314]  warn_alloc.cold.116+0xb7/0x1bd
[  256.772959] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  256.778151]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  256.782444] lowmem_reserve[]: 0 0 0 0
[  256.786777]  ? lock_downgrade+0x900/0x900
[  256.815903] 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
[  256.820766]  ? trace_hardirqs_off+0xb8/0x310
[  256.824524] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  256.828676]  ? trace_hardirqs_off+0xb8/0x310
[  256.842175] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  256.846593]  __alloc_pages_slowpath+0x26e8/0x2e10
[  256.861746] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  256.866193]  ? warn_alloc+0x120/0x120
[  256.880639] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  256.885467]  ? print_usage_bug+0xc0/0xc0
[  256.894278] 4984 total pagecache pages
[  256.898074]  ? warn_alloc+0x120/0x120
[  256.906635] 0 pages in swap cache
[  256.910686]  ? warn_alloc+0x120/0x120
[  256.914554] Swap cache stats: add 0, delete 0, find 0/0
[  256.918347]  ? print_usage_bug+0xc0/0xc0
[  256.921789] Free swap  = 0kB
[  256.925586]  ? kvm_clock_read+0x18/0x30
[  256.930925] Total swap = 0kB
[  256.934979]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  256.937972] 1965979 pages RAM
[  256.941943]  ? print_usage_bug+0xc0/0xc0
[  256.945294] 0 pages HighMem/MovableOnly
[  256.945303] 342853 pages reserved
[  256.950329]  ? __lock_acquire+0x62f/0x4c20
[  256.953410] 0 pages cma reserved
[  256.957494]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  256.961519] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  256.964908]  ? should_fail+0x22d/0xd01
[  256.969179] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  256.972481]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  256.977995] syz-fuzzer cpuset=/ mems_allowed=0
[  256.984484]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.013481]  ? __lock_acquire+0x62f/0x4c20
[  257.017722]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.022838]  ? __lock_acquire+0x62f/0x4c20
[  257.027076]  ? should_fail+0x22d/0xd01
[  257.030964]  ? rcu_irq_exit+0x1a2/0x390
[  257.034949]  ? mark_held_locks+0x130/0x130
[  257.039194]  ? mark_held_locks+0x130/0x130
[  257.043436]  ? mark_held_locks+0xc7/0x130
[  257.047583]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  257.052604]  ? zap_class+0x640/0x640
[  257.056318]  ? print_usage_bug+0xc0/0xc0
[  257.060389]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.065931]  ? check_preemption_disabled+0x48/0x280
[  257.070965]  ? __lock_is_held+0xb5/0x140
[  257.075036]  __alloc_pages_nodemask+0xa80/0xde0
[  257.079715]  ? zap_class+0x640/0x640
[  257.083452]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  257.088484]  ? find_held_lock+0x36/0x1c0
[  257.092558]  ? ____cache_alloc_node+0x1c7/0x1e0
[  257.097230]  ? lock_downgrade+0x900/0x900
[  257.101440]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.106986]  cache_grow_begin+0xa5/0x8c0
[  257.111052]  ? do_raw_spin_unlock+0xa7/0x330
[  257.115469]  fallback_alloc+0x204/0x2e0
[  257.119456]  ____cache_alloc_node+0x1c7/0x1e0
[  257.123961]  kmem_cache_alloc_node+0xe3/0x730
[  257.128456]  ? ipv6_get_ifaddr+0x42e/0x620
[  257.132704]  __alloc_skb+0x119/0x770
[  257.136425]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.141708]  ? netdev_alloc_frag+0x1f0/0x1f0
[  257.146131]  ? lock_downgrade+0x900/0x900
[  257.150285]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.155839]  ? refcount_sub_and_test_checked+0x203/0x310
[  257.161298]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  257.166780]  ? addrconf_rs_timer+0x690/0x690
[  257.171202]  ndisc_alloc_skb+0x144/0x340
[  257.175285]  ndisc_send_rs+0x331/0x6e0
[  257.179210]  addrconf_rs_timer+0x314/0x690
[  257.183450]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.187693]  call_timer_fn+0x272/0x920
[  257.191638]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.195890]  ? process_timeout+0x40/0x40
[  257.199974]  ? __run_timers+0x7da/0xc70
[  257.203949]  ? _raw_spin_unlock_irq+0x27/0x80
[  257.208442]  ? _raw_spin_unlock_irq+0x27/0x80
[  257.212937]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.217173]  ? lockdep_hardirqs_on+0x296/0x5b0
[  257.221770]  ? trace_hardirqs_on+0xbd/0x310
[  257.226098]  ? kasan_check_read+0x11/0x20
[  257.230245]  ? __run_timers+0x7da/0xc70
[  257.234222]  ? trace_hardirqs_off_caller+0x310/0x310
[  257.239329]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.243602]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  257.247836]  __run_timers+0x7e5/0xc70
[  257.251649]  ? timer_fixup_init+0x70/0x70
[  257.255797]  ? kasan_check_read+0x11/0x20
[  257.259957]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.265232]  ? rcu_softirq_qs+0x20/0x20
[  257.269212]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.274762]  ? check_preemption_disabled+0x48/0x280
[  257.279796]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  257.284555]  ? retint_kernel+0x2d/0x2d
[  257.288455]  ? trace_hardirqs_on_caller+0xc0/0x310
[  257.293390]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  257.298152]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  257.303604]  ? zap_class+0x640/0x640
[  257.307326]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.312868]  ? check_preemption_disabled+0x48/0x280
[  257.317897]  ? __lock_is_held+0xb5/0x140
[  257.321962]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.327506]  ? check_preemption_disabled+0x48/0x280
[  257.332530]  run_timer_softirq+0x52/0xb0
[  257.336594]  ? rcu_read_lock_sched_held+0x14f/0x180
[  257.341611]  __do_softirq+0x308/0xb7e
[  257.345426]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  257.349941]  ? lock_downgrade+0x900/0x900
[  257.354098]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  257.359209]  ? pvclock_read_flags+0x160/0x160
[  257.363726]  ? lapic_next_event+0x5a/0x90
[  257.367892]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.373440]  ? kvm_clock_read+0x18/0x30
[  257.377417]  ? kvm_sched_clock_read+0x9/0x20
[  257.381834]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.387378]  ? check_preemption_disabled+0x48/0x280
[  257.392417]  irq_exit+0x17f/0x1c0
[  257.395874]  smp_apic_timer_interrupt+0x1cb/0x760
[  257.400716]  ? smp_reschedule_interrupt+0x109/0x650
[  257.405789]  ? smp_call_function_single_interrupt+0x650/0x650
[  257.411676]  ? interrupt_entry+0xb5/0xc0
[  257.415747]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.420779]  ? trace_hardirqs_off_caller+0xbb/0x310
[  257.425803]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.430651]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.435665]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.440685]  ? task_prio+0x50/0x50
[  257.444233]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.449776]  ? check_preemption_disabled+0x48/0x280
[  257.454800]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.459652]  apic_timer_interrupt+0xf/0x20
[  257.463881]  </IRQ>
[  257.466127] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  257.471058] 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
[  257.489957] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  257.497666] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  257.504932] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  257.512200] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  257.519478] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  257.526756] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  257.534062]  skb_clone+0x1bb/0x500
[  257.537609]  ? skb_split+0x11e0/0x11e0
[  257.541504]  ? preempt_notifier_register+0x200/0x200
[  257.546608]  ? __switch_to_asm+0x34/0x70
[  257.550667]  ? __switch_to_asm+0x34/0x70
[  257.554725]  ? __switch_to_asm+0x40/0x70
[  257.558794]  ? __switch_to_asm+0x34/0x70
[  257.562858]  ? __switch_to_asm+0x40/0x70
[  257.566921]  ? __switch_to_asm+0x40/0x70
[  257.570983]  ? __switch_to_asm+0x34/0x70
[  257.575046]  ? __switch_to_asm+0x34/0x70
[  257.579108]  ? __switch_to_asm+0x40/0x70
[  257.583165]  ? __switch_to_asm+0x34/0x70
[  257.587231]  bpf_clone_redirect+0xb9/0x490
[  257.591479]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  257.596514]  ? __sched_text_start+0x8/0x8
[  257.600667]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  257.605444]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  257.610206]  ? find_held_lock+0x36/0x1c0
[  257.614277]  ? lock_acquire+0x1ed/0x520
[  257.618255]  ? bpf_test_run+0x3cb/0x780
[  257.622232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.627785]  ? check_preemption_disabled+0x48/0x280
[  257.632814]  ? kasan_check_read+0x11/0x20
[  257.636963]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  257.642244]  ? rcu_softirq_qs+0x20/0x20
[  257.646251]  ? preempt_schedule+0x4d/0x60
[  257.650403]  ? ___preempt_schedule+0x16/0x18
[  257.654822]  ? bpf_test_run+0x25d/0x780
[  257.658813]  ? netlink_diag_dump+0x2a0/0x2a0
[  257.663257]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.668798]  ? bpf_test_init.isra.10+0x70/0x100
[  257.673473]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  257.678240]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  257.683082]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  257.688620]  ? fput+0x130/0x1a0
[  257.691902]  ? __bpf_prog_get+0x9b/0x290
[  257.695970]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  257.700816]  ? bpf_prog_test_run+0x130/0x1a0
[  257.705235]  ? __x64_sys_bpf+0x3d8/0x520
[  257.709314]  ? bpf_prog_get+0x20/0x20
[  257.713135]  ? do_syscall_64+0x1b9/0x820
[  257.717199]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  257.722575]  ? syscall_return_slowpath+0x5e0/0x5e0
[  257.727513]  ? trace_hardirqs_on_caller+0x310/0x310
[  257.732531]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  257.737554]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  257.744219]  ? __switch_to_asm+0x40/0x70
[  257.748276]  ? __switch_to_asm+0x34/0x70
[  257.752345]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  257.757196]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  257.762580] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  257.762652] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  257.769509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  257.769519] Call Trace:
[  257.776090] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  257.785355]  <IRQ>
[  257.787925] syz-executor4 cpuset=syz4 mems_allowed=0
[  257.798409]  dump_stack+0x244/0x39d
[  257.809264]  ? dump_stack_print_info.cold.1+0x20/0x20
[  257.814593]  warn_alloc.cold.116+0xb7/0x1bd
[  257.818919]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  257.823793]  ? lock_downgrade+0x900/0x900
[  257.827956]  ? trace_hardirqs_off+0xb8/0x310
[  257.832383]  ? trace_hardirqs_off+0xb8/0x310
[  257.836801]  __alloc_pages_slowpath+0x26e8/0x2e10
[  257.841686]  ? warn_alloc+0x120/0x120
[  257.845487]  ? print_usage_bug+0xc0/0xc0
[  257.849548]  ? warn_alloc+0x120/0x120
[  257.853388]  ? warn_alloc+0x120/0x120
[  257.857191]  ? print_usage_bug+0xc0/0xc0
[  257.861275]  ? print_usage_bug+0xc0/0xc0
[  257.865380]  ? __lock_acquire+0x62f/0x4c20
[  257.869654]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  257.875213]  ? should_fail+0x22d/0xd01
[  257.879128]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.884271]  ? __lock_acquire+0x62f/0x4c20
[  257.888513]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  257.893615]  ? __lock_acquire+0x62f/0x4c20
[  257.897850]  ? should_fail+0x22d/0xd01
[  257.901762]  ? find_held_lock+0x36/0x1c0
[  257.905852]  ? mark_held_locks+0x130/0x130
[  257.910097]  ? mark_held_locks+0x130/0x130
[  257.914334]  ? zap_class+0x640/0x640
[  257.918051]  ? zap_class+0x640/0x640
[  257.921781]  ? print_usage_bug+0xc0/0xc0
[  257.925845]  ? do_raw_spin_unlock+0xa7/0x330
[  257.930263]  ? zap_class+0x640/0x640
[  257.933981]  ? print_usage_bug+0xc0/0xc0
[  257.938047]  ? wq_watchdog_touch+0x9c/0xfe
[  257.942319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.947861]  ? check_preemption_disabled+0x48/0x280
[  257.952891]  ? __lock_is_held+0xb5/0x140
[  257.956961]  __alloc_pages_nodemask+0xa80/0xde0
[  257.961630]  ? zap_class+0x640/0x640
[  257.965349]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  257.970381]  ? find_held_lock+0x36/0x1c0
[  257.974459]  ? ____cache_alloc_node+0x1c7/0x1e0
[  257.979139]  ? lock_downgrade+0x900/0x900
[  257.983300]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  257.988863]  cache_grow_begin+0xa5/0x8c0
[  257.992928]  ? do_raw_spin_unlock+0xa7/0x330
[  257.997348]  fallback_alloc+0x204/0x2e0
[  258.001343]  ____cache_alloc_node+0x1c7/0x1e0
[  258.005860]  kmem_cache_alloc_node+0xe3/0x730
[  258.010357]  ? ipv6_get_ifaddr+0x42e/0x620
[  258.014607]  __alloc_skb+0x119/0x770
[  258.018321]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.023601]  ? netdev_alloc_frag+0x1f0/0x1f0
[  258.028010]  ? lock_downgrade+0x900/0x900
[  258.032170]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.037728]  ? refcount_sub_and_test_checked+0x203/0x310
[  258.043221]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  258.048678]  ? addrconf_rs_timer+0x690/0x690
[  258.053102]  ndisc_alloc_skb+0x144/0x340
[  258.057169]  ndisc_send_rs+0x331/0x6e0
[  258.061068]  addrconf_rs_timer+0x314/0x690
[  258.065324]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.069574]  call_timer_fn+0x272/0x920
[  258.073464]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.077714]  ? process_timeout+0x40/0x40
[  258.081792]  ? mark_held_locks+0xc7/0x130
[  258.085944]  ? _raw_spin_unlock_irq+0x27/0x80
[  258.090437]  ? _raw_spin_unlock_irq+0x27/0x80
[  258.094933]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.099182]  ? lockdep_hardirqs_on+0x296/0x5b0
[  258.103773]  ? trace_hardirqs_on+0xbd/0x310
[  258.108111]  ? kasan_check_read+0x11/0x20
[  258.112262]  ? __run_timers+0x7da/0xc70
[  258.116261]  ? trace_hardirqs_off_caller+0x310/0x310
[  258.121390]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.125631]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  258.129865]  __run_timers+0x7e5/0xc70
[  258.133677]  ? timer_fixup_init+0x70/0x70
[  258.137827]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  258.142859]  ? zap_class+0x640/0x640
[  258.146610]  ? print_usage_bug+0xc0/0xc0
[  258.150677]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  258.155874]  ? find_held_lock+0x36/0x1c0
[  258.159944]  ? zap_class+0x640/0x640
[  258.163671]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.169210]  ? check_preemption_disabled+0x48/0x280
[  258.174264]  ? __lock_is_held+0xb5/0x140
[  258.178341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.183880]  ? check_preemption_disabled+0x48/0x280
[  258.188903]  run_timer_softirq+0x52/0xb0
[  258.192965]  ? rcu_read_lock_sched_held+0x14f/0x180
[  258.197984]  __do_softirq+0x308/0xb7e
[  258.201813]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  258.206308]  ? lock_downgrade+0x900/0x900
[  258.210487]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  258.215628]  ? pvclock_read_flags+0x160/0x160
[  258.220131]  ? lapic_next_event+0x5a/0x90
[  258.224288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.229837]  ? kvm_clock_read+0x18/0x30
[  258.233811]  ? kvm_sched_clock_read+0x9/0x20
[  258.238263]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.243801]  ? check_preemption_disabled+0x48/0x280
[  258.248827]  irq_exit+0x17f/0x1c0
[  258.252293]  smp_apic_timer_interrupt+0x1cb/0x760
[  258.257154]  ? smp_reschedule_interrupt+0x109/0x650
[  258.262187]  ? smp_call_function_single_interrupt+0x650/0x650
[  258.268073]  ? interrupt_entry+0xb5/0xc0
[  258.272156]  ? trace_hardirqs_off_caller+0xbb/0x310
[  258.277189]  ? trace_hardirqs_off_caller+0xbb/0x310
[  258.282227]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.287078]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.292098]  ? trace_hardirqs_on_caller+0x310/0x310
[  258.297114]  ? task_prio+0x50/0x50
[  258.300687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.306292]  ? check_preemption_disabled+0x48/0x280
[  258.311345]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  258.316202]  apic_timer_interrupt+0xf/0x20
[  258.320431]  </IRQ>
[  258.322687] RIP: 0010:check_memory_region+0x121/0x1b0
[  258.327878] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  258.346776] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  258.354486] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  258.361759] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  258.369028] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  258.376316] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  258.383586] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  258.390885]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.396176]  kasan_check_read+0x11/0x20
[  258.400169]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.405274]  ? rcu_softirq_qs+0x20/0x20
[  258.409265]  rcu_is_watching+0x10/0x30
[  258.413158]  list_lru_count_one+0x362/0x450
[  258.417481]  ? list_lru_isolate_move+0x3c0/0x3c0
[  258.422240]  ? shmem_free_inode+0xd0/0xd0
[  258.426401]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.431943]  ? ubifs_shrink_count+0xc4/0x100
[  258.436365]  super_cache_count+0x153/0x2e0
[  258.440621]  do_shrink_slab+0x1b1/0xd30
[  258.444603]  ? lock_acquire+0x1ed/0x520
[  258.448586]  ? snapshot_refaults+0x290/0x290
[  258.453000]  ? lock_release+0xa00/0xa00
[  258.456979]  ? perf_trace_sched_process_exec+0x860/0x860
[  258.462530]  ? down_read_trylock+0xda/0x140
[  258.466849]  ? shrink_slab+0x207/0x8c0
[  258.470761]  ? downgrade_write+0x270/0x270
[  258.475013]  shrink_slab+0x389/0x8c0
[  258.478750]  ? shrink_active_list+0x1f00/0x1f00
[  258.483431]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  258.489074]  ? kasan_check_read+0x11/0x20
[  258.493221]  ? do_raw_spin_unlock+0xa7/0x330
[  258.497641]  ? ___preempt_schedule+0x16/0x18
[  258.502065]  ? _raw_spin_unlock+0x3f/0x50
[  258.506221]  shrink_node+0x431/0x16b0
[  258.510041]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  258.515348]  ? shrink_node_memcg+0x18f0/0x18f0
[  258.519934]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  258.524518]  ? trace_hardirqs_on+0xbd/0x310
[  258.528846]  ? vmpressure+0x271/0x340
[  258.532651]  ? do_raw_spin_trylock+0x270/0x270
[  258.537239]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  258.542786]  ? __cpuset_node_allowed+0x19b/0x660
[  258.547543]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  258.553259]  ? vmpressure+0x1a2/0x340
[  258.557068]  do_try_to_free_pages+0x3e7/0x1290
[  258.561659]  ? zap_class+0x640/0x640
[  258.565390]  ? shrink_node+0x16b0/0x16b0
[  258.569453]  ? __lock_is_held+0xb5/0x140
[  258.573529]  try_to_free_pages+0x4d0/0xb90
[  258.577790]  ? do_try_to_free_pages+0x1290/0x1290
[  258.582647]  ? lock_acquire+0x1ed/0x520
[  258.586620]  ? set_page_refcounted+0x280/0x280
[  258.591222]  ? lock_release+0xa00/0xa00
[  258.595203]  ? _raw_spin_unlock_irq+0x60/0x80
[  258.599700]  ? psi_memstall_enter+0x240/0x2b0
[  258.604196]  ? psi_memstall_tick+0x230/0x230
[  258.608618]  __alloc_pages_slowpath+0xa14/0x2e10
[  258.613403]  ? warn_alloc+0x120/0x120
[  258.617208]  ? mark_held_locks+0x130/0x130
[  258.621448]  ? find_get_entry+0xaae/0x1120
[  258.625697]  ? filemap_map_pages+0x1a20/0x1a20
[  258.630288]  ? zap_class+0x640/0x640
[  258.634007]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  258.639547]  ? check_preemption_disabled+0x48/0x280
[  258.644563]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.650105]  ? should_fail+0x22d/0xd01
[  258.654003]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  258.659109]  ? zap_class+0x640/0x640
[  258.662849]  ? __lock_is_held+0xb5/0x140
[  258.666917]  ? mark_held_locks+0x130/0x130
[  258.671161]  ? lock_release+0xa00/0xa00
[  258.675141]  ? perf_trace_sched_process_exec+0x860/0x860
[  258.680596]  ? xa_load+0x2ba/0x460
[  258.684144]  ? lock_downgrade+0x900/0x900
[  258.688300]  ? __might_sleep+0x95/0x190
[  258.692289]  __alloc_pages_nodemask+0xa80/0xde0
[  258.696968]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  258.701987]  ? __page_cache_alloc+0x191/0x5c0
[  258.706497]  ? xa_load+0x2e1/0x460
[  258.710053]  ? xa_clear_mark+0x40/0x40
[  258.713947]  ? zap_class+0x640/0x640
[  258.717686]  ? zap_class+0x640/0x640
[  258.721416]  ? zap_class+0x640/0x640
[  258.725131]  ? __do_page_cache_readahead+0x663/0x810
[  258.730258]  ? find_held_lock+0x36/0x1c0
[  258.734345]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  258.739909]  alloc_pages_current+0x173/0x350
[  258.744329]  __page_cache_alloc+0x38c/0x5c0
[  258.748650]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.753592]  ? kasan_check_read+0x11/0x20
[  258.757751]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.763034]  ? generic_perform_write+0x6a0/0x6a0
[  258.767795]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.773340]  ? check_preemption_disabled+0x48/0x280
[  258.778371]  filemap_fault+0x1595/0x25f0
[  258.782466]  ? __lock_page_or_retry+0xa00/0xa00
[  258.787146]  ? mark_held_locks+0x130/0x130
[  258.791396]  ? filemap_map_pages+0xd6b/0x1a20
[  258.795893]  ? lock_downgrade+0x900/0x900
[  258.800042]  ? check_preemption_disabled+0x48/0x280
[  258.805074]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.810004]  ? kasan_check_read+0x11/0x20
[  258.814152]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.819429]  ? rcu_softirq_qs+0x20/0x20
[  258.823432]  ? filemap_map_pages+0xd92/0x1a20
[  258.827956]  ? find_get_entries_tag+0x1400/0x1400
[  258.832800]  ? find_held_lock+0x36/0x1c0
[  258.836882]  ? lock_acquire+0x1ed/0x520
[  258.840866]  ? ext4_filemap_fault+0x7a/0xad
[  258.845211]  ? lock_release+0xa00/0xa00
[  258.849185]  ? perf_trace_sched_process_exec+0x860/0x860
[  258.854640]  ? print_usage_bug+0xc0/0xc0
[  258.858721]  ? down_read+0x8d/0x120
[  258.862355]  ? ext4_filemap_fault+0x7a/0xad
[  258.866676]  ? __down_interruptible+0x700/0x700
[  258.871363]  ? find_held_lock+0x36/0x1c0
[  258.875429]  ext4_filemap_fault+0x82/0xad
[  258.879582]  __do_fault+0x100/0x6b0
[  258.883216]  ? lock_downgrade+0x900/0x900
[  258.887369]  ? pmd_devmap_trans_unstable+0x220/0x220
[  258.892480]  ? kasan_check_read+0x11/0x20
[  258.896627]  ? do_raw_spin_unlock+0xa7/0x330
[  258.901041]  ? do_raw_spin_trylock+0x270/0x270
[  258.905639]  __handle_mm_fault+0x3ea0/0x5be0
[  258.910061]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  258.914916]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  258.919533]  ? zap_class+0x640/0x640
[  258.923246]  ? zap_class+0x640/0x640
[  258.926971]  ? __x64_sys_futex+0x53e/0x6a0
[  258.931209]  ? find_held_lock+0x36/0x1c0
[  258.935287]  ? handle_mm_fault+0x42a/0xc70
[  258.939529]  ? lock_downgrade+0x900/0x900
[  258.943696]  ? check_preemption_disabled+0x48/0x280
[  258.948917]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  258.953851]  ? kasan_check_read+0x11/0x20
[  258.958002]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  258.963287]  ? rcu_softirq_qs+0x20/0x20
[  258.967268]  ? trace_hardirqs_off_caller+0x310/0x310
[  258.972377]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  258.977916]  ? check_preemption_disabled+0x48/0x280
[  258.982940]  handle_mm_fault+0x54f/0xc70
[  258.987009]  ? __handle_mm_fault+0x5be0/0x5be0
[  258.991601]  ? find_vma+0x34/0x190
[  258.995153]  __do_page_fault+0x5e8/0xe60
[  258.999216]  ? trace_hardirqs_off+0xb8/0x310
[  259.003643]  do_page_fault+0xf2/0x7e0
[  259.007462]  ? vmalloc_sync_all+0x30/0x30
[  259.011616]  ? error_entry+0x70/0xd0
[  259.015335]  ? trace_hardirqs_off_caller+0xbb/0x310
[  259.020356]  ? trace_hardirqs_on_caller+0xc0/0x310
[  259.025288]  ? syscall_return_slowpath+0x5e0/0x5e0
[  259.030220]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.035080]  ? trace_hardirqs_on_caller+0x310/0x310
[  259.040102]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  259.045576]  ? prepare_exit_to_usermode+0x291/0x3b0
[  259.050598]  ? page_fault+0x8/0x30
[  259.054143]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.059002]  ? page_fault+0x8/0x30
[  259.062548]  page_fault+0x1e/0x30
[  259.066001] RIP: 0033:0x404068
[  259.069206] Code: Bad RIP value.
[  259.072570] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  259.077932] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  259.085202] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  259.092473] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  259.099752] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  259.107027] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  259.114326] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  259.114332] warn_alloc_show_mem: 1 callbacks suppressed
[  259.114339] Mem-Info:
[  259.121619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  259.126994] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  259.126994]  active_file:13 inactive_file:28 isolated_file:0
[  259.126994]  unevictable:0 dirty:1 writeback:0 unstable:0
[  259.126994]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  259.126994]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  259.126994]  free:13541 free_pcp:161 free_cma:0
[  259.129371] Call Trace:
[  259.138766] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  259.171799]  <IRQ>
[  259.174389] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  259.202327]  dump_stack+0x244/0x39d
[  259.204450] lowmem_reserve[]: 0 2818 6321 6321
[  259.230554]  ? dump_stack_print_info.cold.1+0x20/0x20
[  259.234154] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  259.238747]  warn_alloc.cold.116+0xb7/0x1bd
[  259.243906] lowmem_reserve[]: 0 0 3503 3503
[  259.271486]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  259.275788] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  259.280106]  ? lock_downgrade+0x900/0x900
[  259.284921] lowmem_reserve[]: 0 0 0 0
[  259.314082]  ? trace_hardirqs_off+0xb8/0x310
[  259.318203] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  259.322001]  ? trace_hardirqs_off+0xb8/0x310
[  259.326386] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  259.339910]  __alloc_pages_slowpath+0x26e8/0x2e10
[  259.344290] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  259.359482]  ? warn_alloc+0x120/0x120
[  259.364284] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  259.378760]  ? print_usage_bug+0xc0/0xc0
[  259.382537] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  259.391375]  ? warn_alloc+0x120/0x120
[  259.395432] 4984 total pagecache pages
[  259.404002]  ? warn_alloc+0x120/0x120
[  259.407791] 0 pages in swap cache
[  259.411667]  ? print_usage_bug+0xc0/0xc0
[  259.415450] Swap cache stats: add 0, delete 0, find 0/0
[  259.418893]  ? kvm_clock_read+0x18/0x30
[  259.422931] Free swap  = 0kB
[  259.428288]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  259.432242] Total swap = 0kB
[  259.435257]  ? print_usage_bug+0xc0/0xc0
[  259.440256] 1965979 pages RAM
[  259.443266]  ? __lock_acquire+0x62f/0x4c20
[  259.443286]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.447326] 0 pages HighMem/MovableOnly
[  259.450425]  ? should_fail+0x22d/0xd01
[  259.454634] 342853 pages reserved
[  259.460162]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.464108] 0 pages cma reserved
[  259.464183] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  259.468002]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.471521] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  259.476708]  ? __lock_acquire+0x62f/0x4c20
[  259.480050] syz-fuzzer cpuset=/ mems_allowed=0
[  259.486537]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  259.515717]  ? __lock_acquire+0x62f/0x4c20
[  259.519969]  ? should_fail+0x22d/0xd01
[  259.523855]  ? rcu_irq_exit+0x1a2/0x390
[  259.527841]  ? mark_held_locks+0x130/0x130
[  259.532081]  ? mark_held_locks+0x130/0x130
[  259.536322]  ? mark_held_locks+0xc7/0x130
[  259.540472]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  259.545489]  ? zap_class+0x640/0x640
[  259.549213]  ? print_usage_bug+0xc0/0xc0
[  259.553284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.558826]  ? check_preemption_disabled+0x48/0x280
[  259.563852]  ? __lock_is_held+0xb5/0x140
[  259.567919]  __alloc_pages_nodemask+0xa80/0xde0
[  259.572594]  ? zap_class+0x640/0x640
[  259.576317]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  259.581345]  ? find_held_lock+0x36/0x1c0
[  259.585423]  ? ____cache_alloc_node+0x1c7/0x1e0
[  259.590098]  ? lock_downgrade+0x900/0x900
[  259.594284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.599827]  cache_grow_begin+0xa5/0x8c0
[  259.603890]  ? do_raw_spin_unlock+0xa7/0x330
[  259.608306]  fallback_alloc+0x204/0x2e0
[  259.612287]  ____cache_alloc_node+0x1c7/0x1e0
[  259.616791]  kmem_cache_alloc_node+0xe3/0x730
[  259.621287]  ? ipv6_get_ifaddr+0x42e/0x620
[  259.625532]  __alloc_skb+0x119/0x770
[  259.629246]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.634532]  ? netdev_alloc_frag+0x1f0/0x1f0
[  259.638943]  ? lock_downgrade+0x900/0x900
[  259.643099]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.648637]  ? refcount_sub_and_test_checked+0x203/0x310
[  259.654091]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  259.659543]  ? addrconf_rs_timer+0x690/0x690
[  259.663968]  ndisc_alloc_skb+0x144/0x340
[  259.668038]  ndisc_send_rs+0x331/0x6e0
[  259.671931]  addrconf_rs_timer+0x314/0x690
[  259.676170]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.680416]  call_timer_fn+0x272/0x920
[  259.684307]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.688542]  ? process_timeout+0x40/0x40
[  259.692615]  ? __run_timers+0x7da/0xc70
[  259.696591]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.701089]  ? _raw_spin_unlock_irq+0x27/0x80
[  259.705581]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.709818]  ? lockdep_hardirqs_on+0x296/0x5b0
[  259.714405]  ? trace_hardirqs_on+0xbd/0x310
[  259.718730]  ? kasan_check_read+0x11/0x20
[  259.722908]  ? __run_timers+0x7da/0xc70
[  259.726887]  ? trace_hardirqs_off_caller+0x310/0x310
[  259.731994]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.736234]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  259.740471]  __run_timers+0x7e5/0xc70
[  259.744281]  ? timer_fixup_init+0x70/0x70
[  259.748432]  ? kasan_check_read+0x11/0x20
[  259.752591]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  259.757885]  ? rcu_softirq_qs+0x20/0x20
[  259.761878]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.767422]  ? check_preemption_disabled+0x48/0x280
[  259.772447]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  259.777211]  ? retint_kernel+0x2d/0x2d
[  259.781105]  ? trace_hardirqs_on_caller+0xc0/0x310
[  259.786038]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  259.790801]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  259.796257]  ? zap_class+0x640/0x640
[  259.799981]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.805522]  ? check_preemption_disabled+0x48/0x280
[  259.810548]  ? __lock_is_held+0xb5/0x140
[  259.815155]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.820702]  ? check_preemption_disabled+0x48/0x280
[  259.825727]  run_timer_softirq+0x52/0xb0
[  259.829803]  ? rcu_read_lock_sched_held+0x14f/0x180
[  259.834850]  __do_softirq+0x308/0xb7e
[  259.838656]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  259.843152]  ? lock_downgrade+0x900/0x900
[  259.847303]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  259.852417]  ? pvclock_read_flags+0x160/0x160
[  259.856916]  ? lapic_next_event+0x5a/0x90
[  259.861065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.866628]  ? kvm_clock_read+0x18/0x30
[  259.870607]  ? kvm_sched_clock_read+0x9/0x20
[  259.875018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  259.880560]  ? check_preemption_disabled+0x48/0x280
[  259.885589]  irq_exit+0x17f/0x1c0
[  259.889053]  smp_apic_timer_interrupt+0x1cb/0x760
[  259.893897]  ? smp_reschedule_interrupt+0x109/0x650
[  259.898917]  ? smp_call_function_single_interrupt+0x650/0x650
[  259.904806]  ? interrupt_entry+0xb5/0xc0
[  259.908870]  ? trace_hardirqs_off_caller+0xbb/0x310
[  259.913891]  ? trace_hardirqs_off_caller+0xbb/0x310
[  259.918909]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.923777]  ? trace_hardirqs_on_caller+0x310/0x310
[  259.928800]  ? trace_hardirqs_on_caller+0x310/0x310
[  259.933821]  ? task_prio+0x50/0x50
[  259.937363]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  259.942906]  ? check_preemption_disabled+0x48/0x280
[  259.947927]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  259.952785]  apic_timer_interrupt+0xf/0x20
[  259.957019]  </IRQ>
[  259.959265] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  259.964195] 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
[  259.983098] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  259.990808] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  259.998076] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  260.005346] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  260.012616] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  260.019882] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  260.027191]  skb_clone+0x1bb/0x500
[  260.030748]  ? skb_split+0x11e0/0x11e0
[  260.034652]  ? preempt_notifier_register+0x200/0x200
[  260.039764]  ? __switch_to_asm+0x34/0x70
[  260.043827]  ? __switch_to_asm+0x34/0x70
[  260.047890]  ? __switch_to_asm+0x40/0x70
[  260.051950]  ? __switch_to_asm+0x34/0x70
[  260.056013]  ? __switch_to_asm+0x40/0x70
[  260.060071]  ? __switch_to_asm+0x40/0x70
[  260.064134]  ? __switch_to_asm+0x34/0x70
[  260.068197]  ? __switch_to_asm+0x34/0x70
[  260.072286]  ? __switch_to_asm+0x40/0x70
[  260.076347]  ? __switch_to_asm+0x34/0x70
[  260.080414]  bpf_clone_redirect+0xb9/0x490
[  260.084663]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  260.089683]  ? __sched_text_start+0x8/0x8
[  260.093830]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  260.098592]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  260.103354]  ? find_held_lock+0x36/0x1c0
[  260.107424]  ? lock_acquire+0x1ed/0x520
[  260.111402]  ? bpf_test_run+0x3cb/0x780
[  260.115381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.120921]  ? check_preemption_disabled+0x48/0x280
[  260.125947]  ? kasan_check_read+0x11/0x20
[  260.130095]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.135372]  ? rcu_softirq_qs+0x20/0x20
[  260.139348]  ? preempt_schedule+0x4d/0x60
[  260.143502]  ? ___preempt_schedule+0x16/0x18
[  260.147922]  ? bpf_test_run+0x25d/0x780
[  260.151913]  ? netlink_diag_dump+0x2a0/0x2a0
[  260.156325]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.161868]  ? bpf_test_init.isra.10+0x70/0x100
[  260.166546]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  260.171315]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  260.176160]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  260.181704]  ? fput+0x130/0x1a0
[  260.184994]  ? __bpf_prog_get+0x9b/0x290
[  260.189063]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  260.193904]  ? bpf_prog_test_run+0x130/0x1a0
[  260.198316]  ? __x64_sys_bpf+0x3d8/0x520
[  260.202377]  ? bpf_prog_get+0x20/0x20
[  260.206196]  ? do_syscall_64+0x1b9/0x820
[  260.210259]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  260.215627]  ? syscall_return_slowpath+0x5e0/0x5e0
[  260.220563]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.225585]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  260.230610]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  260.237276]  ? __switch_to_asm+0x40/0x70
[  260.241336]  ? __switch_to_asm+0x34/0x70
[  260.245404]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.250273]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  260.255657] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  260.255725] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  260.262590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  260.262596] Call Trace:
[  260.262603]  <IRQ>
[  260.262621]  dump_stack+0x244/0x39d
[  260.262639]  ? dump_stack_print_info.cold.1+0x20/0x20
[  260.269187] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  260.278478]  warn_alloc.cold.116+0xb7/0x1bd
[  260.281036] syz-executor4 cpuset=syz4 mems_allowed=0
[  260.283180]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  260.316694]  ? lock_downgrade+0x900/0x900
[  260.320852]  ? trace_hardirqs_off+0xb8/0x310
[  260.325275]  ? trace_hardirqs_off+0xb8/0x310
[  260.329697]  __alloc_pages_slowpath+0x26e8/0x2e10
[  260.334569]  ? warn_alloc+0x120/0x120
[  260.338378]  ? print_usage_bug+0xc0/0xc0
[  260.342457]  ? warn_alloc+0x120/0x120
[  260.346281]  ? warn_alloc+0x120/0x120
[  260.350085]  ? print_usage_bug+0xc0/0xc0
[  260.354148]  ? kvm_clock_read+0x18/0x30
[  260.358124]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  260.363148]  ? print_usage_bug+0xc0/0xc0
[  260.367211]  ? __lock_acquire+0x62f/0x4c20
[  260.371455]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.376997]  ? should_fail+0x22d/0xd01
[  260.380885]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.386166]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  260.391276]  ? __lock_acquire+0x62f/0x4c20
[  260.395516]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  260.400621]  ? __lock_acquire+0x62f/0x4c20
[  260.404854]  ? should_fail+0x22d/0xd01
[  260.408747]  ? rcu_irq_exit+0x1a2/0x390
[  260.412746]  ? mark_held_locks+0x130/0x130
[  260.416991]  ? mark_held_locks+0x130/0x130
[  260.421235]  ? mark_held_locks+0xc7/0x130
[  260.425402]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  260.430423]  ? zap_class+0x640/0x640
[  260.434140]  ? print_usage_bug+0xc0/0xc0
[  260.438206]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.443756]  ? check_preemption_disabled+0x48/0x280
[  260.448795]  ? __lock_is_held+0xb5/0x140
[  260.452866]  __alloc_pages_nodemask+0xa80/0xde0
[  260.457541]  ? zap_class+0x640/0x640
[  260.461268]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  260.466296]  ? find_held_lock+0x36/0x1c0
[  260.470372]  ? ____cache_alloc_node+0x1c7/0x1e0
[  260.475045]  ? lock_downgrade+0x900/0x900
[  260.479204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.484756]  cache_grow_begin+0xa5/0x8c0
[  260.488823]  ? do_raw_spin_unlock+0xa7/0x330
[  260.493246]  fallback_alloc+0x204/0x2e0
[  260.497232]  ____cache_alloc_node+0x1c7/0x1e0
[  260.501748]  kmem_cache_alloc_node+0xe3/0x730
[  260.506257]  ? ipv6_get_ifaddr+0x42e/0x620
[  260.510522]  __alloc_skb+0x119/0x770
[  260.514240]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.519531]  ? netdev_alloc_frag+0x1f0/0x1f0
[  260.523945]  ? lock_downgrade+0x900/0x900
[  260.528101]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.533640]  ? refcount_sub_and_test_checked+0x203/0x310
[  260.539098]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  260.544549]  ? addrconf_rs_timer+0x690/0x690
[  260.548974]  ndisc_alloc_skb+0x144/0x340
[  260.553044]  ndisc_send_rs+0x331/0x6e0
[  260.556937]  addrconf_rs_timer+0x314/0x690
[  260.561179]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.565424]  call_timer_fn+0x272/0x920
[  260.569313]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.573553]  ? process_timeout+0x40/0x40
[  260.577626]  ? mark_held_locks+0xc7/0x130
[  260.581781]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.586278]  ? _raw_spin_unlock_irq+0x27/0x80
[  260.590777]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.595015]  ? lockdep_hardirqs_on+0x296/0x5b0
[  260.599601]  ? trace_hardirqs_on+0xbd/0x310
[  260.603928]  ? kasan_check_read+0x11/0x20
[  260.608106]  ? __run_timers+0x7da/0xc70
[  260.612081]  ? trace_hardirqs_off_caller+0x310/0x310
[  260.617192]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.621431]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  260.625669]  __run_timers+0x7e5/0xc70
[  260.629483]  ? timer_fixup_init+0x70/0x70
[  260.633639]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  260.638669]  ? zap_class+0x640/0x640
[  260.642389]  ? print_usage_bug+0xc0/0xc0
[  260.646455]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  260.651653]  ? find_held_lock+0x36/0x1c0
[  260.655720]  ? zap_class+0x640/0x640
[  260.659449]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.664990]  ? check_preemption_disabled+0x48/0x280
[  260.670020]  ? __lock_is_held+0xb5/0x140
[  260.674086]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.679627]  ? check_preemption_disabled+0x48/0x280
[  260.684651]  run_timer_softirq+0x52/0xb0
[  260.688715]  ? rcu_read_lock_sched_held+0x14f/0x180
[  260.693751]  __do_softirq+0x308/0xb7e
[  260.697561]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  260.702057]  ? lock_downgrade+0x900/0x900
[  260.706240]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  260.711358]  ? pvclock_read_flags+0x160/0x160
[  260.715859]  ? lapic_next_event+0x5a/0x90
[  260.720009]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.725553]  ? kvm_clock_read+0x18/0x30
[  260.729530]  ? kvm_sched_clock_read+0x9/0x20
[  260.733946]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.739505]  ? check_preemption_disabled+0x48/0x280
[  260.744550]  irq_exit+0x17f/0x1c0
[  260.748021]  smp_apic_timer_interrupt+0x1cb/0x760
[  260.752867]  ? smp_reschedule_interrupt+0x109/0x650
[  260.757885]  ? smp_call_function_single_interrupt+0x650/0x650
[  260.763775]  ? interrupt_entry+0xb5/0xc0
[  260.767838]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.772859]  ? trace_hardirqs_off_caller+0xbb/0x310
[  260.777883]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.782732]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.787763]  ? trace_hardirqs_on_caller+0x310/0x310
[  260.792788]  ? task_prio+0x50/0x50
[  260.796330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  260.801871]  ? check_preemption_disabled+0x48/0x280
[  260.806894]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  260.811755]  apic_timer_interrupt+0xf/0x20
[  260.815985]  </IRQ>
[  260.818237] RIP: 0010:check_memory_region+0x121/0x1b0
[  260.823435] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  260.842367] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  260.850092] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  260.857359] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  260.864625] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  260.871897] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  260.879169] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  260.886464]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.891767]  kasan_check_read+0x11/0x20
[  260.895770]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  260.900879]  ? rcu_softirq_qs+0x20/0x20
[  260.904866]  rcu_is_watching+0x10/0x30
[  260.908762]  list_lru_count_one+0x362/0x450
[  260.913086]  ? list_lru_isolate_move+0x3c0/0x3c0
[  260.917852]  ? shmem_free_inode+0xd0/0xd0
[  260.922011]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  260.927566]  ? ubifs_shrink_count+0xc4/0x100
[  260.931988]  super_cache_count+0x153/0x2e0
[  260.936231]  do_shrink_slab+0x1b1/0xd30
[  260.940259]  ? lock_acquire+0x1ed/0x520
[  260.944237]  ? snapshot_refaults+0x290/0x290
[  260.949140]  ? lock_release+0xa00/0xa00
[  260.953120]  ? perf_trace_sched_process_exec+0x860/0x860
[  260.958584]  ? down_read_trylock+0xda/0x140
[  260.962902]  ? shrink_slab+0x207/0x8c0
[  260.966820]  ? downgrade_write+0x270/0x270
[  260.971065]  shrink_slab+0x389/0x8c0
[  260.974783]  ? shrink_active_list+0x1f00/0x1f00
[  260.979466]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  260.985096]  ? kasan_check_read+0x11/0x20
[  260.989244]  ? do_raw_spin_unlock+0xa7/0x330
[  260.993668]  ? ___preempt_schedule+0x16/0x18
[  260.998088]  ? _raw_spin_unlock+0x3f/0x50
[  261.002264]  shrink_node+0x431/0x16b0
[  261.006072]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  261.011380]  ? shrink_node_memcg+0x18f0/0x18f0
[  261.015961]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  261.020546]  ? trace_hardirqs_on+0xbd/0x310
[  261.024873]  ? vmpressure+0x271/0x340
[  261.028681]  ? do_raw_spin_trylock+0x270/0x270
[  261.033321]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  261.038859]  ? __cpuset_node_allowed+0x19b/0x660
[  261.043621]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  261.049335]  ? vmpressure+0x1a2/0x340
[  261.053147]  do_try_to_free_pages+0x3e7/0x1290
[  261.057750]  ? zap_class+0x640/0x640
[  261.061502]  ? shrink_node+0x16b0/0x16b0
[  261.065567]  ? __lock_is_held+0xb5/0x140
[  261.069643]  try_to_free_pages+0x4d0/0xb90
[  261.073883]  ? do_try_to_free_pages+0x1290/0x1290
[  261.078747]  ? lock_acquire+0x1ed/0x520
[  261.082724]  ? set_page_refcounted+0x280/0x280
[  261.087327]  ? lock_release+0xa00/0xa00
[  261.091308]  ? _raw_spin_unlock_irq+0x60/0x80
[  261.095809]  ? psi_memstall_enter+0x240/0x2b0
[  261.100313]  ? psi_memstall_tick+0x230/0x230
[  261.104746]  __alloc_pages_slowpath+0xa14/0x2e10
[  261.109535]  ? warn_alloc+0x120/0x120
[  261.113336]  ? mark_held_locks+0x130/0x130
[  261.117579]  ? find_get_entry+0xaae/0x1120
[  261.121824]  ? filemap_map_pages+0x1a20/0x1a20
[  261.126415]  ? zap_class+0x640/0x640
[  261.130140]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  261.135683]  ? check_preemption_disabled+0x48/0x280
[  261.140705]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.146258]  ? should_fail+0x22d/0xd01
[  261.150152]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.155311]  ? zap_class+0x640/0x640
[  261.159055]  ? __lock_is_held+0xb5/0x140
[  261.163125]  ? mark_held_locks+0x130/0x130
[  261.167364]  ? lock_release+0xa00/0xa00
[  261.171346]  ? perf_trace_sched_process_exec+0x860/0x860
[  261.176800]  ? xa_load+0x2ba/0x460
[  261.180348]  ? lock_downgrade+0x900/0x900
[  261.184518]  ? __might_sleep+0x95/0x190
[  261.188502]  __alloc_pages_nodemask+0xa80/0xde0
[  261.193180]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  261.198200]  ? __page_cache_alloc+0x191/0x5c0
[  261.202699]  ? xa_load+0x2e1/0x460
[  261.206241]  ? xa_clear_mark+0x40/0x40
[  261.210139]  ? zap_class+0x640/0x640
[  261.213864]  ? zap_class+0x640/0x640
[  261.217577]  ? zap_class+0x640/0x640
[  261.221291]  ? __do_page_cache_readahead+0x663/0x810
[  261.226432]  ? find_held_lock+0x36/0x1c0
[  261.230516]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  261.236061]  alloc_pages_current+0x173/0x350
[  261.240493]  __page_cache_alloc+0x38c/0x5c0
[  261.244818]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  261.249755]  ? kasan_check_read+0x11/0x20
[  261.253909]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.259192]  ? generic_perform_write+0x6a0/0x6a0
[  261.263949]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.269493]  ? check_preemption_disabled+0x48/0x280
[  261.274522]  filemap_fault+0x1595/0x25f0
[  261.278596]  ? __lock_page_or_retry+0xa00/0xa00
[  261.283275]  ? mark_held_locks+0x130/0x130
[  261.287523]  ? filemap_map_pages+0xd6b/0x1a20
[  261.292022]  ? lock_downgrade+0x900/0x900
[  261.296173]  ? check_preemption_disabled+0x48/0x280
[  261.301198]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  261.306128]  ? kasan_check_read+0x11/0x20
[  261.310280]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.315562]  ? rcu_softirq_qs+0x20/0x20
[  261.319552]  ? filemap_map_pages+0xd92/0x1a20
[  261.324067]  ? find_get_entries_tag+0x1400/0x1400
[  261.328908]  ? find_held_lock+0x36/0x1c0
[  261.332990]  ? lock_acquire+0x1ed/0x520
[  261.336970]  ? ext4_filemap_fault+0x7a/0xad
[  261.341299]  ? lock_release+0xa00/0xa00
[  261.345275]  ? perf_trace_sched_process_exec+0x860/0x860
[  261.350727]  ? print_usage_bug+0xc0/0xc0
[  261.354815]  ? down_read+0x8d/0x120
[  261.358441]  ? ext4_filemap_fault+0x7a/0xad
[  261.362775]  ? __down_interruptible+0x700/0x700
[  261.367451]  ? find_held_lock+0x36/0x1c0
[  261.371533]  ext4_filemap_fault+0x82/0xad
[  261.375689]  __do_fault+0x100/0x6b0
[  261.379319]  ? lock_downgrade+0x900/0x900
[  261.383471]  ? pmd_devmap_trans_unstable+0x220/0x220
[  261.388586]  ? kasan_check_read+0x11/0x20
[  261.392734]  ? do_raw_spin_unlock+0xa7/0x330
[  261.397155]  ? do_raw_spin_trylock+0x270/0x270
[  261.401763]  __handle_mm_fault+0x3ea0/0x5be0
[  261.406182]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  261.411050]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  261.415645]  ? zap_class+0x640/0x640
[  261.419363]  ? zap_class+0x640/0x640
[  261.423077]  ? __x64_sys_futex+0x53e/0x6a0
[  261.427330]  ? find_held_lock+0x36/0x1c0
[  261.431400]  ? handle_mm_fault+0x42a/0xc70
[  261.435641]  ? lock_downgrade+0x900/0x900
[  261.439806]  ? check_preemption_disabled+0x48/0x280
[  261.444827]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  261.449763]  ? kasan_check_read+0x11/0x20
[  261.453916]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  261.459200]  ? rcu_softirq_qs+0x20/0x20
[  261.463175]  ? trace_hardirqs_off_caller+0x310/0x310
[  261.468287]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.473827]  ? check_preemption_disabled+0x48/0x280
[  261.478851]  handle_mm_fault+0x54f/0xc70
[  261.482919]  ? __handle_mm_fault+0x5be0/0x5be0
[  261.487506]  ? find_vma+0x34/0x190
[  261.491054]  __do_page_fault+0x5e8/0xe60
[  261.495115]  ? trace_hardirqs_off+0xb8/0x310
[  261.499535]  do_page_fault+0xf2/0x7e0
[  261.503354]  ? vmalloc_sync_all+0x30/0x30
[  261.507520]  ? error_entry+0x70/0xd0
[  261.511235]  ? trace_hardirqs_off_caller+0xbb/0x310
[  261.516263]  ? trace_hardirqs_on_caller+0xc0/0x310
[  261.521200]  ? syscall_return_slowpath+0x5e0/0x5e0
[  261.526135]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.530979]  ? trace_hardirqs_on_caller+0x310/0x310
[  261.536003]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  261.541462]  ? prepare_exit_to_usermode+0x291/0x3b0
[  261.546481]  ? page_fault+0x8/0x30
[  261.550027]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  261.554878]  ? page_fault+0x8/0x30
[  261.558422]  page_fault+0x1e/0x30
[  261.561875] RIP: 0033:0x404068
[  261.565087] Code: Bad RIP value.
[  261.568535] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  261.573895] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  261.581162] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  261.588472] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  261.595757] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  261.603026] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  261.610345] warn_alloc_show_mem: 1 callbacks suppressed
[  261.610357] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  261.610359] Mem-Info:
[  261.610390] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  261.610390]  active_file:13 inactive_file:28 isolated_file:0
[  261.610390]  unevictable:0 dirty:1 writeback:0 unstable:0
[  261.610390]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  261.610390]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  261.610390]  free:13541 free_pcp:161 free_cma:0
[  261.615730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  261.623016] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  261.625429] Call Trace:
[  261.658467] 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
[  261.667824]  <IRQ>
[  261.695750] lowmem_reserve[]: 0 2818 6321 6321
[  261.698337]  dump_stack+0x244/0x39d
[  261.724421] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  261.726570]  ? dump_stack_print_info.cold.1+0x20/0x20
[  261.731130] lowmem_reserve[]: 0 0 3503 3503
[  261.734771]  warn_alloc.cold.116+0xb7/0x1bd
[  261.762325] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  261.767515]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  261.771820] lowmem_reserve[]: 0 0 0 0
[  261.776137]  ? lock_downgrade+0x900/0x900
[  261.805257] 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
[  261.810104]  ? trace_hardirqs_off+0xb8/0x310
[  261.814072] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  261.818221]  ? trace_hardirqs_off+0xb8/0x310
[  261.831718] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  261.836141]  __alloc_pages_slowpath+0x26e8/0x2e10
[  261.851298] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  261.855715]  ? warn_alloc+0x120/0x120
[  261.870156] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  261.874987]  ? print_usage_bug+0xc0/0xc0
[  261.883801] 4984 total pagecache pages
[  261.887593]  ? warn_alloc+0x120/0x120
[  261.896155] 0 pages in swap cache
[  261.900204]  ? warn_alloc+0x120/0x120
[  261.904074] Swap cache stats: add 0, delete 0, find 0/0
[  261.907863]  ? print_usage_bug+0xc0/0xc0
[  261.911294] Free swap  = 0kB
[  261.915087]  ? print_usage_bug+0xc0/0xc0
[  261.920431] Total swap = 0kB
[  261.924485]  ? __lock_acquire+0x62f/0x4c20
[  261.927479] 1965979 pages RAM
[  261.931535]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  261.934550] 0 pages HighMem/MovableOnly
[  261.938799]  ? should_fail+0x22d/0xd01
[  261.941884] 342853 pages reserved
[  261.947413]  ? __lock_acquire+0x62f/0x4c20
[  261.951362] 0 pages cma reserved
[  261.955242]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.958736] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  261.962902]  ? __lock_acquire+0x62f/0x4c20
[  261.962921]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  261.962938]  ? __lock_acquire+0x62f/0x4c20
[  261.966394] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  261.971387]  ? should_fail+0x22d/0xd01
[  261.971413]  ? mark_held_locks+0x130/0x130
[  261.978147] syz-fuzzer cpuset=/ mems_allowed=0
[  261.982385]  ? mark_held_locks+0x130/0x130
[  262.018938]  ? zap_class+0x640/0x640
[  262.022653]  ? zap_class+0x640/0x640
[  262.026369]  ? print_usage_bug+0xc0/0xc0
[  262.030432]  ? do_raw_spin_unlock+0xa7/0x330
[  262.034845]  ? zap_class+0x640/0x640
[  262.038562]  ? print_usage_bug+0xc0/0xc0
[  262.042627]  ? print_usage_bug+0xc0/0xc0
[  262.046693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.052237]  ? check_preemption_disabled+0x48/0x280
[  262.057265]  ? __lock_is_held+0xb5/0x140
[  262.061351]  __alloc_pages_nodemask+0xa80/0xde0
[  262.066022]  ? zap_class+0x640/0x640
[  262.069761]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  262.074800]  ? find_held_lock+0x36/0x1c0
[  262.078875]  ? ____cache_alloc_node+0x1c7/0x1e0
[  262.083550]  ? lock_downgrade+0x900/0x900
[  262.087705]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.093259]  cache_grow_begin+0xa5/0x8c0
[  262.097322]  ? do_raw_spin_unlock+0xa7/0x330
[  262.101734]  fallback_alloc+0x204/0x2e0
[  262.105749]  ____cache_alloc_node+0x1c7/0x1e0
[  262.110273]  kmem_cache_alloc_node+0xe3/0x730
[  262.114784]  ? ipv6_get_ifaddr+0x42e/0x620
[  262.119033]  __alloc_skb+0x119/0x770
[  262.122773]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.128062]  ? netdev_alloc_frag+0x1f0/0x1f0
[  262.132469]  ? lock_downgrade+0x900/0x900
[  262.136624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.142164]  ? refcount_sub_and_test_checked+0x203/0x310
[  262.147621]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  262.153071]  ? addrconf_rs_timer+0x690/0x690
[  262.157496]  ndisc_alloc_skb+0x144/0x340
[  262.161563]  ndisc_send_rs+0x331/0x6e0
[  262.165456]  addrconf_rs_timer+0x314/0x690
[  262.169698]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.173946]  call_timer_fn+0x272/0x920
[  262.177833]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.182071]  ? process_timeout+0x40/0x40
[  262.186139]  ? __run_timers+0x7da/0xc70
[  262.190118]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.194614]  ? _raw_spin_unlock_irq+0x27/0x80
[  262.199112]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.203350]  ? lockdep_hardirqs_on+0x296/0x5b0
[  262.207939]  ? trace_hardirqs_on+0xbd/0x310
[  262.212268]  ? kasan_check_read+0x11/0x20
[  262.216415]  ? __run_timers+0x7da/0xc70
[  262.220395]  ? trace_hardirqs_off_caller+0x310/0x310
[  262.225510]  ? tcp_compressed_ack_kick+0x220/0x220
[  262.230447]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  262.234685]  __run_timers+0x7e5/0xc70
[  262.238499]  ? timer_fixup_init+0x70/0x70
[  262.242649]  ? kasan_check_read+0x11/0x20
[  262.246803]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.252085]  ? rcu_softirq_qs+0x20/0x20
[  262.256062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.261604]  ? check_preemption_disabled+0x48/0x280
[  262.266630]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  262.271396]  ? retint_kernel+0x2d/0x2d
[  262.275286]  ? trace_hardirqs_on_caller+0xc0/0x310
[  262.280219]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  262.284975]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  262.290431]  ? zap_class+0x640/0x640
[  262.294155]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.299697]  ? check_preemption_disabled+0x48/0x280
[  262.304725]  ? __lock_is_held+0xb5/0x140
[  262.308803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.314347]  ? check_preemption_disabled+0x48/0x280
[  262.319370]  run_timer_softirq+0x52/0xb0
[  262.323438]  ? rcu_read_lock_sched_held+0x14f/0x180
[  262.328458]  __do_softirq+0x308/0xb7e
[  262.332265]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  262.336773]  ? lock_downgrade+0x900/0x900
[  262.340928]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  262.346045]  ? pvclock_read_flags+0x160/0x160
[  262.350548]  ? lapic_next_event+0x5a/0x90
[  262.354709]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.360261]  ? kvm_clock_read+0x18/0x30
[  262.364234]  ? kvm_sched_clock_read+0x9/0x20
[  262.368648]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.374192]  ? check_preemption_disabled+0x48/0x280
[  262.379224]  irq_exit+0x17f/0x1c0
[  262.382685]  smp_apic_timer_interrupt+0x1cb/0x760
[  262.387547]  ? smp_reschedule_interrupt+0x109/0x650
[  262.392565]  ? smp_call_function_single_interrupt+0x650/0x650
[  262.398448]  ? interrupt_entry+0xb5/0xc0
[  262.402517]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.407535]  ? trace_hardirqs_off_caller+0xbb/0x310
[  262.412558]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.417404]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.422420]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.427440]  ? task_prio+0x50/0x50
[  262.430984]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.436523]  ? check_preemption_disabled+0x48/0x280
[  262.441545]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.446399]  apic_timer_interrupt+0xf/0x20
[  262.450631]  </IRQ>
[  262.452874] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  262.457805] 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
[  262.476703] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  262.484422] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  262.491690] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  262.498978] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  262.506248] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  262.513519] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  262.520843]  skb_clone+0x1bb/0x500
[  262.524430]  ? skb_split+0x11e0/0x11e0
[  262.528327]  ? preempt_notifier_register+0x200/0x200
[  262.533428]  ? __switch_to_asm+0x34/0x70
[  262.537499]  ? __switch_to_asm+0x34/0x70
[  262.541560]  ? __switch_to_asm+0x40/0x70
[  262.545623]  ? __switch_to_asm+0x34/0x70
[  262.549683]  ? __switch_to_asm+0x40/0x70
[  262.553758]  ? __switch_to_asm+0x40/0x70
[  262.557818]  ? __switch_to_asm+0x34/0x70
[  262.561880]  ? __switch_to_asm+0x34/0x70
[  262.565939]  ? __switch_to_asm+0x40/0x70
[  262.569998]  ? __switch_to_asm+0x34/0x70
[  262.574064]  bpf_clone_redirect+0xb9/0x490
[  262.578309]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  262.583364]  ? __sched_text_start+0x8/0x8
[  262.587514]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  262.592274]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  262.597038]  ? find_held_lock+0x36/0x1c0
[  262.601107]  ? lock_acquire+0x1ed/0x520
[  262.605082]  ? bpf_test_run+0x3cb/0x780
[  262.609061]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.614612]  ? check_preemption_disabled+0x48/0x280
[  262.619640]  ? kasan_check_read+0x11/0x20
[  262.623789]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  262.629064]  ? rcu_softirq_qs+0x20/0x20
[  262.633044]  ? preempt_schedule+0x4d/0x60
[  262.637193]  ? ___preempt_schedule+0x16/0x18
[  262.641614]  ? bpf_test_run+0x25d/0x780
[  262.645603]  ? netlink_diag_dump+0x2a0/0x2a0
[  262.650018]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.655560]  ? bpf_test_init.isra.10+0x70/0x100
[  262.660238]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  262.665005]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  262.669848]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  262.675389]  ? fput+0x130/0x1a0
[  262.678677]  ? __bpf_prog_get+0x9b/0x290
[  262.682755]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  262.687602]  ? bpf_prog_test_run+0x130/0x1a0
[  262.692018]  ? __x64_sys_bpf+0x3d8/0x520
[  262.696085]  ? bpf_prog_get+0x20/0x20
[  262.699910]  ? do_syscall_64+0x1b9/0x820
[  262.703970]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  262.709339]  ? syscall_return_slowpath+0x5e0/0x5e0
[  262.714278]  ? trace_hardirqs_on_caller+0x310/0x310
[  262.719300]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  262.724318]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  262.730983]  ? __switch_to_asm+0x40/0x70
[  262.735042]  ? __switch_to_asm+0x34/0x70
[  262.739109]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  262.743961]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  262.749344] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  262.749415] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  262.756272] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  262.756278] Call Trace:
[  262.756285]  <IRQ>
[  262.756302]  dump_stack+0x244/0x39d
[  262.756321]  ? dump_stack_print_info.cold.1+0x20/0x20
[  262.762879] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  262.772157]  warn_alloc.cold.116+0xb7/0x1bd
[  262.774725] syz-executor4 cpuset=syz4 mems_allowed=0
[  262.776878]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  262.810362]  ? lock_downgrade+0x900/0x900
[  262.814520]  ? trace_hardirqs_off+0xb8/0x310
[  262.818939]  ? trace_hardirqs_off+0xb8/0x310
[  262.823355]  __alloc_pages_slowpath+0x26e8/0x2e10
[  262.828224]  ? warn_alloc+0x120/0x120
[  262.832038]  ? print_usage_bug+0xc0/0xc0
[  262.836106]  ? warn_alloc+0x120/0x120
[  262.839927]  ? warn_alloc+0x120/0x120
[  262.843751]  ? print_usage_bug+0xc0/0xc0
[  262.847834]  ? print_usage_bug+0xc0/0xc0
[  262.851918]  ? check_usage_forwards+0x3d0/0x3d0
[  262.856589]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  262.862127]  ? should_fail+0x22d/0xd01
[  262.866012]  ? __bfs+0x321/0x780
[  262.869414]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  262.874523]  ? __lock_acquire+0x62f/0x4c20
[  262.878771]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  262.883876]  ? __lock_acquire+0x62f/0x4c20
[  262.888129]  ? should_fail+0x22d/0xd01
[  262.892044]  ? mark_held_locks+0x130/0x130
[  262.896304]  ? mark_held_locks+0x130/0x130
[  262.900546]  ? kasan_check_read+0x11/0x20
[  262.904698]  ? __lock_acquire+0x2aff/0x4c20
[  262.909023]  ? zap_class+0x640/0x640
[  262.912752]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.918307]  ? check_preemption_disabled+0x48/0x280
[  262.923334]  ? __lock_is_held+0xb5/0x140
[  262.927402]  __alloc_pages_nodemask+0xa80/0xde0
[  262.932089]  ? zap_class+0x640/0x640
[  262.935810]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  262.940843]  ? find_held_lock+0x36/0x1c0
[  262.945327]  ? ____cache_alloc_node+0x1c7/0x1e0
[  262.950004]  ? lock_downgrade+0x900/0x900
[  262.954163]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  262.959709]  cache_grow_begin+0xa5/0x8c0
[  262.963781]  ? do_raw_spin_unlock+0xa7/0x330
[  262.968200]  fallback_alloc+0x204/0x2e0
[  262.972184]  ____cache_alloc_node+0x1c7/0x1e0
[  262.976687]  kmem_cache_alloc_node+0xe3/0x730
[  262.981184]  ? do_raw_spin_unlock+0xa7/0x330
[  262.985593]  ? do_raw_spin_trylock+0x270/0x270
[  262.990215]  __alloc_skb+0x119/0x770
[  262.993965]  ? netdev_alloc_frag+0x1f0/0x1f0
[  262.998379]  ? atomic_notifier_call_chain+0xc6/0x190
[  263.003486]  ? lock_downgrade+0x900/0x900
[  263.007641]  ? check_preemption_disabled+0x48/0x280
[  263.012662]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.017592]  ? kasan_check_read+0x11/0x20
[  263.021753]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.027033]  ? rcu_softirq_qs+0x20/0x20
[  263.031010]  ? kasan_check_read+0x11/0x20
[  263.035168]  ? do_raw_write_trylock+0x270/0x270
[  263.039869]  __neigh_notify+0x8c/0x160
[  263.043787]  ? neigh_connected_output+0x780/0x780
[  263.048636]  neigh_timer_handler+0x6cb/0xdf0
[  263.053051]  ? check_preemption_disabled+0x48/0x280
[  263.058078]  ? neigh_periodic_work+0xc60/0xc60
[  263.062667]  ? __lock_is_held+0xb5/0x140
[  263.066754]  call_timer_fn+0x272/0x920
[  263.070648]  ? neigh_periodic_work+0xc60/0xc60
[  263.075234]  ? process_timeout+0x40/0x40
[  263.079315]  ? mark_held_locks+0xc7/0x130
[  263.083472]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.087968]  ? _raw_spin_unlock_irq+0x27/0x80
[  263.092463]  ? neigh_periodic_work+0xc60/0xc60
[  263.097048]  ? lockdep_hardirqs_on+0x296/0x5b0
[  263.101634]  ? trace_hardirqs_on+0xbd/0x310
[  263.105961]  ? kasan_check_read+0x11/0x20
[  263.110107]  ? __run_timers+0x7da/0xc70
[  263.114084]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.119201]  ? neigh_periodic_work+0xc60/0xc60
[  263.123784]  __run_timers+0x7e5/0xc70
[  263.127600]  ? timer_fixup_init+0x70/0x70
[  263.131759]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  263.136821]  ? zap_class+0x640/0x640
[  263.140545]  ? print_usage_bug+0xc0/0xc0
[  263.144610]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  263.149812]  ? find_held_lock+0x36/0x1c0
[  263.153880]  ? zap_class+0x640/0x640
[  263.157604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.163147]  ? check_preemption_disabled+0x48/0x280
[  263.168174]  ? __lock_is_held+0xb5/0x140
[  263.172238]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.177786]  ? check_preemption_disabled+0x48/0x280
[  263.182815]  run_timer_softirq+0x52/0xb0
[  263.186878]  ? rcu_read_lock_sched_held+0x14f/0x180
[  263.191897]  __do_softirq+0x308/0xb7e
[  263.195705]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  263.200208]  ? lock_downgrade+0x900/0x900
[  263.204368]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  263.209484]  ? pvclock_read_flags+0x160/0x160
[  263.213982]  ? lapic_next_event+0x5a/0x90
[  263.218138]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.223684]  ? kvm_clock_read+0x18/0x30
[  263.227675]  ? kvm_sched_clock_read+0x9/0x20
[  263.232119]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.237658]  ? check_preemption_disabled+0x48/0x280
[  263.242688]  irq_exit+0x17f/0x1c0
[  263.246143]  smp_apic_timer_interrupt+0x1cb/0x760
[  263.250989]  ? smp_reschedule_interrupt+0x109/0x650
[  263.256012]  ? smp_call_function_single_interrupt+0x650/0x650
[  263.261895]  ? interrupt_entry+0xb5/0xc0
[  263.265960]  ? trace_hardirqs_off_caller+0xbb/0x310
[  263.270977]  ? trace_hardirqs_off_caller+0xbb/0x310
[  263.275996]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.280842]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.285861]  ? trace_hardirqs_on_caller+0x310/0x310
[  263.290877]  ? task_prio+0x50/0x50
[  263.294423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.299962]  ? check_preemption_disabled+0x48/0x280
[  263.304985]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  263.309850]  apic_timer_interrupt+0xf/0x20
[  263.314077]  </IRQ>
[  263.316324] RIP: 0010:check_memory_region+0x121/0x1b0
[  263.321520] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  263.340450] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  263.348162] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  263.355428] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  263.362696] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  263.369962] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  263.377232] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  263.384522]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.389846]  kasan_check_read+0x11/0x20
[  263.393853]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.398987]  ? rcu_softirq_qs+0x20/0x20
[  263.402973]  rcu_is_watching+0x10/0x30
[  263.406865]  list_lru_count_one+0x362/0x450
[  263.411188]  ? list_lru_isolate_move+0x3c0/0x3c0
[  263.415944]  ? shmem_free_inode+0xd0/0xd0
[  263.420095]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.425636]  ? ubifs_shrink_count+0xc4/0x100
[  263.430053]  super_cache_count+0x153/0x2e0
[  263.434299]  do_shrink_slab+0x1b1/0xd30
[  263.438300]  ? lock_acquire+0x1ed/0x520
[  263.442282]  ? snapshot_refaults+0x290/0x290
[  263.446698]  ? lock_release+0xa00/0xa00
[  263.450683]  ? perf_trace_sched_process_exec+0x860/0x860
[  263.456145]  ? down_read_trylock+0xda/0x140
[  263.460468]  ? shrink_slab+0x207/0x8c0
[  263.464356]  ? downgrade_write+0x270/0x270
[  263.468622]  shrink_slab+0x389/0x8c0
[  263.472337]  ? shrink_active_list+0x1f00/0x1f00
[  263.477018]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  263.482666]  ? kasan_check_read+0x11/0x20
[  263.486830]  ? do_raw_spin_unlock+0xa7/0x330
[  263.491247]  ? ___preempt_schedule+0x16/0x18
[  263.495682]  ? _raw_spin_unlock+0x3f/0x50
[  263.499843]  shrink_node+0x431/0x16b0
[  263.503648]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  263.508954]  ? shrink_node_memcg+0x18f0/0x18f0
[  263.513540]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  263.518129]  ? trace_hardirqs_on+0xbd/0x310
[  263.522453]  ? vmpressure+0x271/0x340
[  263.526264]  ? do_raw_spin_trylock+0x270/0x270
[  263.530859]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  263.536437]  ? __cpuset_node_allowed+0x19b/0x660
[  263.541198]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  263.546909]  ? vmpressure+0x1a2/0x340
[  263.550723]  do_try_to_free_pages+0x3e7/0x1290
[  263.555311]  ? zap_class+0x640/0x640
[  263.559046]  ? shrink_node+0x16b0/0x16b0
[  263.563115]  ? __lock_is_held+0xb5/0x140
[  263.567209]  try_to_free_pages+0x4d0/0xb90
[  263.571455]  ? do_try_to_free_pages+0x1290/0x1290
[  263.576311]  ? lock_acquire+0x1ed/0x520
[  263.580290]  ? set_page_refcounted+0x280/0x280
[  263.584881]  ? lock_release+0xa00/0xa00
[  263.588862]  ? _raw_spin_unlock_irq+0x60/0x80
[  263.593360]  ? psi_memstall_enter+0x240/0x2b0
[  263.597858]  ? psi_memstall_tick+0x230/0x230
[  263.602282]  __alloc_pages_slowpath+0xa14/0x2e10
[  263.607068]  ? warn_alloc+0x120/0x120
[  263.610869]  ? mark_held_locks+0x130/0x130
[  263.615112]  ? find_get_entry+0xaae/0x1120
[  263.619357]  ? filemap_map_pages+0x1a20/0x1a20
[  263.623944]  ? zap_class+0x640/0x640
[  263.627664]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  263.633204]  ? check_preemption_disabled+0x48/0x280
[  263.638225]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.643773]  ? should_fail+0x22d/0xd01
[  263.647667]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  263.652783]  ? zap_class+0x640/0x640
[  263.656526]  ? __lock_is_held+0xb5/0x140
[  263.660596]  ? mark_held_locks+0x130/0x130
[  263.664839]  ? lock_release+0xa00/0xa00
[  263.668814]  ? perf_trace_sched_process_exec+0x860/0x860
[  263.674273]  ? xa_load+0x2ba/0x460
[  263.677830]  ? lock_downgrade+0x900/0x900
[  263.681983]  ? __might_sleep+0x95/0x190
[  263.685962]  __alloc_pages_nodemask+0xa80/0xde0
[  263.690641]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  263.695661]  ? __page_cache_alloc+0x191/0x5c0
[  263.700159]  ? xa_load+0x2e1/0x460
[  263.703705]  ? xa_clear_mark+0x40/0x40
[  263.707603]  ? zap_class+0x640/0x640
[  263.711328]  ? zap_class+0x640/0x640
[  263.715043]  ? zap_class+0x640/0x640
[  263.718770]  ? __do_page_cache_readahead+0x663/0x810
[  263.723884]  ? find_held_lock+0x36/0x1c0
[  263.727950]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  263.733498]  alloc_pages_current+0x173/0x350
[  263.737917]  __page_cache_alloc+0x38c/0x5c0
[  263.742241]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.747178]  ? kasan_check_read+0x11/0x20
[  263.751329]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.756649]  ? generic_perform_write+0x6a0/0x6a0
[  263.761411]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.766952]  ? check_preemption_disabled+0x48/0x280
[  263.771976]  filemap_fault+0x1595/0x25f0
[  263.776055]  ? __lock_page_or_retry+0xa00/0xa00
[  263.780732]  ? mark_held_locks+0x130/0x130
[  263.784988]  ? filemap_map_pages+0xd6b/0x1a20
[  263.789488]  ? lock_downgrade+0x900/0x900
[  263.793639]  ? check_preemption_disabled+0x48/0x280
[  263.798660]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.803583]  ? kasan_check_read+0x11/0x20
[  263.807754]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.813035]  ? rcu_softirq_qs+0x20/0x20
[  263.817295]  ? filemap_map_pages+0xd92/0x1a20
[  263.821804]  ? find_get_entries_tag+0x1400/0x1400
[  263.826645]  ? find_held_lock+0x36/0x1c0
[  263.830729]  ? lock_acquire+0x1ed/0x520
[  263.834713]  ? ext4_filemap_fault+0x7a/0xad
[  263.839051]  ? lock_release+0xa00/0xa00
[  263.843024]  ? perf_trace_sched_process_exec+0x860/0x860
[  263.848481]  ? print_usage_bug+0xc0/0xc0
[  263.852565]  ? down_read+0x8d/0x120
[  263.856204]  ? ext4_filemap_fault+0x7a/0xad
[  263.860527]  ? __down_interruptible+0x700/0x700
[  263.865228]  ? find_held_lock+0x36/0x1c0
[  263.869299]  ext4_filemap_fault+0x82/0xad
[  263.873452]  __do_fault+0x100/0x6b0
[  263.877081]  ? lock_downgrade+0x900/0x900
[  263.881237]  ? pmd_devmap_trans_unstable+0x220/0x220
[  263.886366]  ? kasan_check_read+0x11/0x20
[  263.890534]  ? do_raw_spin_unlock+0xa7/0x330
[  263.894947]  ? do_raw_spin_trylock+0x270/0x270
[  263.899547]  __handle_mm_fault+0x3ea0/0x5be0
[  263.903969]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  263.908824]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  263.913432]  ? zap_class+0x640/0x640
[  263.917149]  ? zap_class+0x640/0x640
[  263.920863]  ? __x64_sys_futex+0x53e/0x6a0
[  263.925106]  ? find_held_lock+0x36/0x1c0
[  263.929179]  ? handle_mm_fault+0x42a/0xc70
[  263.933652]  ? lock_downgrade+0x900/0x900
[  263.937802]  ? check_preemption_disabled+0x48/0x280
[  263.942826]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  263.947765]  ? kasan_check_read+0x11/0x20
[  263.951924]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  263.957203]  ? rcu_softirq_qs+0x20/0x20
[  263.961178]  ? trace_hardirqs_off_caller+0x310/0x310
[  263.966285]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  263.971827]  ? check_preemption_disabled+0x48/0x280
[  263.976852]  handle_mm_fault+0x54f/0xc70
[  263.980923]  ? __handle_mm_fault+0x5be0/0x5be0
[  263.985510]  ? find_vma+0x34/0x190
[  263.989059]  __do_page_fault+0x5e8/0xe60
[  263.993122]  ? trace_hardirqs_off+0xb8/0x310
[  263.997547]  do_page_fault+0xf2/0x7e0
[  264.001366]  ? vmalloc_sync_all+0x30/0x30
[  264.005534]  ? error_entry+0x70/0xd0
[  264.009258]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.014281]  ? trace_hardirqs_on_caller+0xc0/0x310
[  264.019225]  ? syscall_return_slowpath+0x5e0/0x5e0
[  264.024161]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.029006]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.034027]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  264.039498]  ? prepare_exit_to_usermode+0x291/0x3b0
[  264.044519]  ? page_fault+0x8/0x30
[  264.048062]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.052909]  ? page_fault+0x8/0x30
[  264.056475]  page_fault+0x1e/0x30
[  264.059924] RIP: 0033:0x404068
[  264.063129] Code: Bad RIP value.
[  264.066503] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  264.071863] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  264.079131] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  264.086403] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  264.093674] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  264.100944] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  264.108244] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  264.108250] warn_alloc_show_mem: 1 callbacks suppressed
[  264.108260] Mem-Info:
[  264.115532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  264.120901] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  264.120901]  active_file:13 inactive_file:28 isolated_file:0
[  264.120901]  unevictable:0 dirty:1 writeback:0 unstable:0
[  264.120901]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  264.120901]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  264.120901]  free:13541 free_pcp:161 free_cma:0
[  264.123275] Call Trace:
[  264.132663] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  264.165686]  <IRQ>
[  264.168267] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  264.196202]  dump_stack+0x244/0x39d
[  264.198325] lowmem_reserve[]: 0 2818 6321 6321
[  264.224436]  ? dump_stack_print_info.cold.1+0x20/0x20
[  264.228041] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  264.232623]  warn_alloc.cold.116+0xb7/0x1bd
[  264.237796] lowmem_reserve[]: 0 0 3503 3503
[  264.265383]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  264.269684] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  264.274001]  ? lock_downgrade+0x900/0x900
[  264.278822] lowmem_reserve[]: 0 0 0 0
[  264.307984]  ? trace_hardirqs_off+0xb8/0x310
[  264.312110] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  264.315907]  ? trace_hardirqs_off+0xb8/0x310
[  264.320290] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  264.333814]  __alloc_pages_slowpath+0x26e8/0x2e10
[  264.338196] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  264.353410]  ? warn_alloc+0x120/0x120
[  264.358214] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  264.372690]  ? print_usage_bug+0xc0/0xc0
[  264.376474] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  264.385298]  ? warn_alloc+0x120/0x120
[  264.389332] 4984 total pagecache pages
[  264.398511]  ? warn_alloc+0x120/0x120
[  264.402295] 0 pages in swap cache
[  264.406170]  ? print_usage_bug+0xc0/0xc0
[  264.409947] Swap cache stats: add 0, delete 0, find 0/0
[  264.413395]  ? kvm_clock_read+0x18/0x30
[  264.417432] Free swap  = 0kB
[  264.422794]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  264.426750] Total swap = 0kB
[  264.429775]  ? print_usage_bug+0xc0/0xc0
[  264.434768] 1965979 pages RAM
[  264.438127]  ? __lock_acquire+0x62f/0x4c20
[  264.442167] 0 pages HighMem/MovableOnly
[  264.445270]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.449480] 342853 pages reserved
[  264.453450]  ? should_fail+0x22d/0xd01
[  264.458962] 0 pages cma reserved
[  264.462411]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.466394] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  264.469640]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.474893] syz-fuzzer cpuset=/ mems_allowed=0
[  264.485114]  ? __lock_acquire+0x62f/0x4c20
[  264.499256]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  264.504362]  ? __lock_acquire+0x62f/0x4c20
[  264.508595]  ? should_fail+0x22d/0xd01
[  264.512481]  ? rcu_irq_exit+0x1a2/0x390
[  264.516468]  ? mark_held_locks+0x130/0x130
[  264.520713]  ? mark_held_locks+0x130/0x130
[  264.524965]  ? mark_held_locks+0xc7/0x130
[  264.529117]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  264.534138]  ? zap_class+0x640/0x640
[  264.537855]  ? print_usage_bug+0xc0/0xc0
[  264.541927]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.547472]  ? check_preemption_disabled+0x48/0x280
[  264.552503]  ? __lock_is_held+0xb5/0x140
[  264.556570]  __alloc_pages_nodemask+0xa80/0xde0
[  264.561243]  ? zap_class+0x640/0x640
[  264.564966]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  264.569995]  ? find_held_lock+0x36/0x1c0
[  264.574068]  ? ____cache_alloc_node+0x1c7/0x1e0
[  264.578757]  ? lock_downgrade+0x900/0x900
[  264.583095]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.588642]  cache_grow_begin+0xa5/0x8c0
[  264.592703]  ? do_raw_spin_unlock+0xa7/0x330
[  264.597124]  fallback_alloc+0x204/0x2e0
[  264.601108]  ____cache_alloc_node+0x1c7/0x1e0
[  264.605615]  kmem_cache_alloc_node+0xe3/0x730
[  264.610116]  ? ipv6_get_ifaddr+0x42e/0x620
[  264.614365]  __alloc_skb+0x119/0x770
[  264.618085]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.623366]  ? netdev_alloc_frag+0x1f0/0x1f0
[  264.627787]  ? lock_downgrade+0x900/0x900
[  264.631950]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.637491]  ? refcount_sub_and_test_checked+0x203/0x310
[  264.642948]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  264.648403]  ? addrconf_rs_timer+0x690/0x690
[  264.652826]  ndisc_alloc_skb+0x144/0x340
[  264.656898]  ndisc_send_rs+0x331/0x6e0
[  264.660795]  addrconf_rs_timer+0x314/0x690
[  264.665038]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.669289]  call_timer_fn+0x272/0x920
[  264.673180]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.677419]  ? process_timeout+0x40/0x40
[  264.681494]  ? __run_timers+0x7da/0xc70
[  264.685561]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.690056]  ? _raw_spin_unlock_irq+0x27/0x80
[  264.694556]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.698799]  ? lockdep_hardirqs_on+0x296/0x5b0
[  264.703387]  ? trace_hardirqs_on+0xbd/0x310
[  264.707712]  ? kasan_check_read+0x11/0x20
[  264.711871]  ? __run_timers+0x7da/0xc70
[  264.715846]  ? trace_hardirqs_off_caller+0x310/0x310
[  264.720953]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.725194]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  264.729428]  __run_timers+0x7e5/0xc70
[  264.733244]  ? timer_fixup_init+0x70/0x70
[  264.737395]  ? kasan_check_read+0x11/0x20
[  264.741547]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  264.746828]  ? rcu_softirq_qs+0x20/0x20
[  264.750803]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.756347]  ? check_preemption_disabled+0x48/0x280
[  264.761373]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  264.766131]  ? retint_kernel+0x2d/0x2d
[  264.770020]  ? trace_hardirqs_on_caller+0xc0/0x310
[  264.774951]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  264.779708]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  264.785168]  ? zap_class+0x640/0x640
[  264.788890]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.794428]  ? check_preemption_disabled+0x48/0x280
[  264.799453]  ? __lock_is_held+0xb5/0x140
[  264.803521]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.809059]  ? check_preemption_disabled+0x48/0x280
[  264.814085]  run_timer_softirq+0x52/0xb0
[  264.818150]  ? rcu_read_lock_sched_held+0x14f/0x180
[  264.823171]  __do_softirq+0x308/0xb7e
[  264.826976]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  264.831474]  ? lock_downgrade+0x900/0x900
[  264.835628]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  264.840750]  ? pvclock_read_flags+0x160/0x160
[  264.845255]  ? lapic_next_event+0x5a/0x90
[  264.849407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.854949]  ? kvm_clock_read+0x18/0x30
[  264.858923]  ? kvm_sched_clock_read+0x9/0x20
[  264.863336]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  264.868877]  ? check_preemption_disabled+0x48/0x280
[  264.873904]  irq_exit+0x17f/0x1c0
[  264.877358]  smp_apic_timer_interrupt+0x1cb/0x760
[  264.882199]  ? smp_reschedule_interrupt+0x109/0x650
[  264.887216]  ? smp_call_function_single_interrupt+0x650/0x650
[  264.893099]  ? interrupt_entry+0xb5/0xc0
[  264.897164]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.902183]  ? trace_hardirqs_off_caller+0xbb/0x310
[  264.907200]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.912047]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.917081]  ? trace_hardirqs_on_caller+0x310/0x310
[  264.922097]  ? task_prio+0x50/0x50
[  264.925646]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  264.931191]  ? check_preemption_disabled+0x48/0x280
[  264.936216]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  264.941074]  apic_timer_interrupt+0xf/0x20
[  264.945481]  </IRQ>
[  264.947724] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  264.952842] 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
[  264.971765] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  264.979474] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  264.986750] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  264.994287] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  265.001554] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  265.008838] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  265.016154]  skb_clone+0x1bb/0x500
[  265.019697]  ? skb_split+0x11e0/0x11e0
[  265.023594]  ? preempt_notifier_register+0x200/0x200
[  265.028702]  ? __switch_to_asm+0x34/0x70
[  265.032777]  ? __switch_to_asm+0x34/0x70
[  265.036836]  ? __switch_to_asm+0x40/0x70
[  265.040895]  ? __switch_to_asm+0x34/0x70
[  265.044953]  ? __switch_to_asm+0x40/0x70
[  265.049013]  ? __switch_to_asm+0x40/0x70
[  265.053076]  ? __switch_to_asm+0x34/0x70
[  265.057139]  ? __switch_to_asm+0x34/0x70
[  265.061196]  ? __switch_to_asm+0x40/0x70
[  265.065253]  ? __switch_to_asm+0x34/0x70
[  265.069325]  bpf_clone_redirect+0xb9/0x490
[  265.073569]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  265.078593]  ? __sched_text_start+0x8/0x8
[  265.082755]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  265.087519]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  265.092284]  ? find_held_lock+0x36/0x1c0
[  265.096357]  ? lock_acquire+0x1ed/0x520
[  265.100337]  ? bpf_test_run+0x3cb/0x780
[  265.104319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.109859]  ? check_preemption_disabled+0x48/0x280
[  265.114884]  ? kasan_check_read+0x11/0x20
[  265.119045]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.124338]  ? rcu_softirq_qs+0x20/0x20
[  265.128314]  ? preempt_schedule+0x4d/0x60
[  265.132461]  ? ___preempt_schedule+0x16/0x18
[  265.136877]  ? bpf_test_run+0x25d/0x780
[  265.140868]  ? netlink_diag_dump+0x2a0/0x2a0
[  265.145282]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.150825]  ? bpf_test_init.isra.10+0x70/0x100
[  265.155502]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  265.160271]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  265.165114]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  265.170653]  ? fput+0x130/0x1a0
[  265.173933]  ? __bpf_prog_get+0x9b/0x290
[  265.177999]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  265.182840]  ? bpf_prog_test_run+0x130/0x1a0
[  265.187254]  ? __x64_sys_bpf+0x3d8/0x520
[  265.191314]  ? bpf_prog_get+0x20/0x20
[  265.195134]  ? do_syscall_64+0x1b9/0x820
[  265.199204]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  265.204573]  ? syscall_return_slowpath+0x5e0/0x5e0
[  265.209508]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.214532]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  265.219556]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  265.226222]  ? __switch_to_asm+0x40/0x70
[  265.230282]  ? __switch_to_asm+0x34/0x70
[  265.234350]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.239200]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  265.244584] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  265.244673] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  265.251519] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  265.251525] Call Trace:
[  265.251532]  <IRQ>
[  265.251549]  dump_stack+0x244/0x39d
[  265.251568]  ? dump_stack_print_info.cold.1+0x20/0x20
[  265.258096] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  265.267397]  warn_alloc.cold.116+0xb7/0x1bd
[  265.269952] syz-executor4 cpuset=syz4 mems_allowed=0
[  265.272095]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  265.305581]  ? lock_downgrade+0x900/0x900
[  265.309750]  ? trace_hardirqs_off+0xb8/0x310
[  265.314174]  ? trace_hardirqs_off+0xb8/0x310
[  265.318592]  __alloc_pages_slowpath+0x26e8/0x2e10
[  265.323475]  ? warn_alloc+0x120/0x120
[  265.327287]  ? warn_alloc+0x120/0x120
[  265.331094]  ? warn_alloc+0x120/0x120
[  265.334898]  ? print_usage_bug+0xc0/0xc0
[  265.338960]  ? enqueue_hrtimer+0x1a5/0x560
[  265.343199]  ? print_usage_bug+0xc0/0xc0
[  265.347268]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  265.352468]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.358006]  ? should_fail+0x22d/0xd01
[  265.361904]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.367023]  ? __lock_acquire+0x62f/0x4c20
[  265.371270]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  265.376374]  ? __lock_acquire+0x62f/0x4c20
[  265.380608]  ? should_fail+0x22d/0xd01
[  265.384511]  ? mark_held_locks+0x130/0x130
[  265.388759]  ? mark_held_locks+0x130/0x130
[  265.393003]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  265.398019]  ? ktime_get+0x2c1/0x400
[  265.401737]  ? zap_class+0x640/0x640
[  265.405461]  ? print_usage_bug+0xc0/0xc0
[  265.409527]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.415071]  ? check_preemption_disabled+0x48/0x280
[  265.420099]  ? __lock_is_held+0xb5/0x140
[  265.424172]  __alloc_pages_nodemask+0xa80/0xde0
[  265.428850]  ? zap_class+0x640/0x640
[  265.432574]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  265.437601]  ? find_held_lock+0x36/0x1c0
[  265.441673]  ? ____cache_alloc_node+0x1c7/0x1e0
[  265.446350]  ? lock_downgrade+0x900/0x900
[  265.450511]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.456054]  cache_grow_begin+0xa5/0x8c0
[  265.460120]  ? do_raw_spin_unlock+0xa7/0x330
[  265.464544]  fallback_alloc+0x204/0x2e0
[  265.468526]  ____cache_alloc_node+0x1c7/0x1e0
[  265.473032]  kmem_cache_alloc_node+0xe3/0x730
[  265.477534]  ? ipv6_get_ifaddr+0x42e/0x620
[  265.481786]  __alloc_skb+0x119/0x770
[  265.485504]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.490786]  ? netdev_alloc_frag+0x1f0/0x1f0
[  265.495195]  ? lock_downgrade+0x900/0x900
[  265.499352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.504900]  ? refcount_sub_and_test_checked+0x203/0x310
[  265.510360]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  265.515815]  ? addrconf_rs_timer+0x690/0x690
[  265.520242]  ndisc_alloc_skb+0x144/0x340
[  265.524315]  ndisc_send_rs+0x331/0x6e0
[  265.528212]  addrconf_rs_timer+0x314/0x690
[  265.532457]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.536702]  call_timer_fn+0x272/0x920
[  265.540590]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.544826]  ? process_timeout+0x40/0x40
[  265.548904]  ? mark_held_locks+0xc7/0x130
[  265.553055]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.557546]  ? _raw_spin_unlock_irq+0x27/0x80
[  265.562037]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.566281]  ? lockdep_hardirqs_on+0x296/0x5b0
[  265.570868]  ? trace_hardirqs_on+0xbd/0x310
[  265.575192]  ? kasan_check_read+0x11/0x20
[  265.579338]  ? __run_timers+0x7da/0xc70
[  265.583317]  ? trace_hardirqs_off_caller+0x310/0x310
[  265.588481]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  265.592715]  __run_timers+0x7e5/0xc70
[  265.596537]  ? timer_fixup_init+0x70/0x70
[  265.600691]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  265.605723]  ? zap_class+0x640/0x640
[  265.609464]  ? print_usage_bug+0xc0/0xc0
[  265.613547]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  265.618757]  ? find_held_lock+0x36/0x1c0
[  265.622831]  ? zap_class+0x640/0x640
[  265.626582]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.632164]  ? check_preemption_disabled+0x48/0x280
[  265.637207]  ? __lock_is_held+0xb5/0x140
[  265.641275]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.646817]  ? check_preemption_disabled+0x48/0x280
[  265.651839]  run_timer_softirq+0x52/0xb0
[  265.655904]  ? rcu_read_lock_sched_held+0x14f/0x180
[  265.660921]  __do_softirq+0x308/0xb7e
[  265.664731]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  265.669236]  ? lock_downgrade+0x900/0x900
[  265.673392]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  265.678524]  ? pvclock_read_flags+0x160/0x160
[  265.683028]  ? lapic_next_event+0x5a/0x90
[  265.687179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.692723]  ? kvm_clock_read+0x18/0x30
[  265.696707]  ? kvm_sched_clock_read+0x9/0x20
[  265.701129]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.706670]  ? check_preemption_disabled+0x48/0x280
[  265.711700]  irq_exit+0x17f/0x1c0
[  265.715160]  smp_apic_timer_interrupt+0x1cb/0x760
[  265.720003]  ? smp_reschedule_interrupt+0x109/0x650
[  265.725021]  ? smp_call_function_single_interrupt+0x650/0x650
[  265.730905]  ? interrupt_entry+0xb5/0xc0
[  265.734967]  ? trace_hardirqs_off_caller+0xbb/0x310
[  265.739986]  ? trace_hardirqs_off_caller+0xbb/0x310
[  265.745006]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.749855]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.754877]  ? trace_hardirqs_on_caller+0x310/0x310
[  265.759894]  ? task_prio+0x50/0x50
[  265.763440]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  265.768984]  ? check_preemption_disabled+0x48/0x280
[  265.774010]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  265.778861]  apic_timer_interrupt+0xf/0x20
[  265.783090]  </IRQ>
[  265.785332] RIP: 0010:check_memory_region+0x121/0x1b0
[  265.790524] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  265.809425] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  265.817296] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  265.824597] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  265.831868] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  265.839138] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  265.846407] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  265.853740]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.859040]  kasan_check_read+0x11/0x20
[  265.863020]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  265.868126]  ? rcu_softirq_qs+0x20/0x20
[  265.872115]  rcu_is_watching+0x10/0x30
[  265.876008]  list_lru_count_one+0x362/0x450
[  265.880384]  ? list_lru_isolate_move+0x3c0/0x3c0
[  265.885141]  ? shmem_free_inode+0xd0/0xd0
[  265.889295]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  265.894837]  ? ubifs_shrink_count+0xc4/0x100
[  265.899260]  super_cache_count+0x153/0x2e0
[  265.903504]  do_shrink_slab+0x1b1/0xd30
[  265.907484]  ? lock_acquire+0x1ed/0x520
[  265.911461]  ? snapshot_refaults+0x290/0x290
[  265.915886]  ? lock_release+0xa00/0xa00
[  265.919891]  ? perf_trace_sched_process_exec+0x860/0x860
[  265.925372]  ? down_read_trylock+0xda/0x140
[  265.929696]  ? shrink_slab+0x207/0x8c0
[  265.933586]  ? downgrade_write+0x270/0x270
[  265.937830]  shrink_slab+0x389/0x8c0
[  265.941631]  ? shrink_active_list+0x1f00/0x1f00
[  265.946312]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  265.951952]  ? kasan_check_read+0x11/0x20
[  265.956103]  ? do_raw_spin_unlock+0xa7/0x330
[  265.960521]  ? ___preempt_schedule+0x16/0x18
[  265.964944]  ? _raw_spin_unlock+0x3f/0x50
[  265.969100]  shrink_node+0x431/0x16b0
[  265.972905]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  265.978212]  ? shrink_node_memcg+0x18f0/0x18f0
[  265.982794]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  265.987378]  ? trace_hardirqs_on+0xbd/0x310
[  265.991698]  ? vmpressure+0x271/0x340
[  265.995502]  ? do_raw_spin_trylock+0x270/0x270
[  266.000097]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  266.005666]  ? __cpuset_node_allowed+0x19b/0x660
[  266.010429]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  266.016150]  ? vmpressure+0x1a2/0x340
[  266.019981]  do_try_to_free_pages+0x3e7/0x1290
[  266.024564]  ? zap_class+0x640/0x640
[  266.028297]  ? shrink_node+0x16b0/0x16b0
[  266.032367]  ? __lock_is_held+0xb5/0x140
[  266.036444]  try_to_free_pages+0x4d0/0xb90
[  266.040684]  ? do_try_to_free_pages+0x1290/0x1290
[  266.045541]  ? lock_acquire+0x1ed/0x520
[  266.049522]  ? set_page_refcounted+0x280/0x280
[  266.054111]  ? lock_release+0xa00/0xa00
[  266.058099]  ? _raw_spin_unlock_irq+0x60/0x80
[  266.062609]  ? psi_memstall_enter+0x240/0x2b0
[  266.067105]  ? psi_memstall_tick+0x230/0x230
[  266.071525]  __alloc_pages_slowpath+0xa14/0x2e10
[  266.076322]  ? warn_alloc+0x120/0x120
[  266.080135]  ? mark_held_locks+0x130/0x130
[  266.084379]  ? find_get_entry+0xaae/0x1120
[  266.088623]  ? filemap_map_pages+0x1a20/0x1a20
[  266.093213]  ? zap_class+0x640/0x640
[  266.096950]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  266.102491]  ? check_preemption_disabled+0x48/0x280
[  266.107511]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.113050]  ? should_fail+0x22d/0xd01
[  266.116946]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  266.122054]  ? zap_class+0x640/0x640
[  266.125803]  ? __lock_is_held+0xb5/0x140
[  266.129873]  ? mark_held_locks+0x130/0x130
[  266.134111]  ? lock_release+0xa00/0xa00
[  266.138090]  ? perf_trace_sched_process_exec+0x860/0x860
[  266.143545]  ? xa_load+0x2ba/0x460
[  266.147090]  ? lock_downgrade+0x900/0x900
[  266.151248]  ? __might_sleep+0x95/0x190
[  266.155236]  __alloc_pages_nodemask+0xa80/0xde0
[  266.159922]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  266.164942]  ? __page_cache_alloc+0x191/0x5c0
[  266.169441]  ? xa_load+0x2e1/0x460
[  266.173000]  ? xa_clear_mark+0x40/0x40
[  266.176893]  ? zap_class+0x640/0x640
[  266.180614]  ? zap_class+0x640/0x640
[  266.184334]  ? zap_class+0x640/0x640
[  266.188049]  ? __do_page_cache_readahead+0x663/0x810
[  266.193160]  ? find_held_lock+0x36/0x1c0
[  266.197232]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  266.202784]  alloc_pages_current+0x173/0x350
[  266.207205]  __page_cache_alloc+0x38c/0x5c0
[  266.211524]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  266.216453]  ? kasan_check_read+0x11/0x20
[  266.220599]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.225880]  ? generic_perform_write+0x6a0/0x6a0
[  266.230638]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.236179]  ? check_preemption_disabled+0x48/0x280
[  266.241209]  filemap_fault+0x1595/0x25f0
[  266.245290]  ? __lock_page_or_retry+0xa00/0xa00
[  266.249968]  ? mark_held_locks+0x130/0x130
[  266.254212]  ? filemap_map_pages+0xd6b/0x1a20
[  266.258709]  ? lock_downgrade+0x900/0x900
[  266.262872]  ? check_preemption_disabled+0x48/0x280
[  266.267894]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  266.272824]  ? kasan_check_read+0x11/0x20
[  266.276976]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.282258]  ? rcu_softirq_qs+0x20/0x20
[  266.286251]  ? filemap_map_pages+0xd92/0x1a20
[  266.290777]  ? find_get_entries_tag+0x1400/0x1400
[  266.295621]  ? find_held_lock+0x36/0x1c0
[  266.299706]  ? lock_acquire+0x1ed/0x520
[  266.303687]  ? ext4_filemap_fault+0x7a/0xad
[  266.308018]  ? lock_release+0xa00/0xa00
[  266.311993]  ? perf_trace_sched_process_exec+0x860/0x860
[  266.317446]  ? print_usage_bug+0xc0/0xc0
[  266.321529]  ? down_read+0x8d/0x120
[  266.325159]  ? ext4_filemap_fault+0x7a/0xad
[  266.329487]  ? __down_interruptible+0x700/0x700
[  266.334161]  ? find_held_lock+0x36/0x1c0
[  266.338227]  ext4_filemap_fault+0x82/0xad
[  266.342382]  __do_fault+0x100/0x6b0
[  266.346014]  ? lock_downgrade+0x900/0x900
[  266.350164]  ? pmd_devmap_trans_unstable+0x220/0x220
[  266.355278]  ? kasan_check_read+0x11/0x20
[  266.359425]  ? do_raw_spin_unlock+0xa7/0x330
[  266.363859]  ? do_raw_spin_trylock+0x270/0x270
[  266.368455]  __handle_mm_fault+0x3ea0/0x5be0
[  266.372875]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  266.377731]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  266.382336]  ? zap_class+0x640/0x640
[  266.386049]  ? zap_class+0x640/0x640
[  266.389772]  ? __x64_sys_futex+0x53e/0x6a0
[  266.394016]  ? find_held_lock+0x36/0x1c0
[  266.398092]  ? handle_mm_fault+0x42a/0xc70
[  266.402333]  ? lock_downgrade+0x900/0x900
[  266.406483]  ? check_preemption_disabled+0x48/0x280
[  266.411501]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  266.416447]  ? kasan_check_read+0x11/0x20
[  266.420628]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  266.425905]  ? rcu_softirq_qs+0x20/0x20
[  266.429882]  ? trace_hardirqs_off_caller+0x310/0x310
[  266.434988]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.440527]  ? check_preemption_disabled+0x48/0x280
[  266.445552]  handle_mm_fault+0x54f/0xc70
[  266.449619]  ? __handle_mm_fault+0x5be0/0x5be0
[  266.454206]  ? find_vma+0x34/0x190
[  266.457763]  __do_page_fault+0x5e8/0xe60
[  266.461838]  ? trace_hardirqs_off+0xb8/0x310
[  266.466269]  do_page_fault+0xf2/0x7e0
[  266.470075]  ? vmalloc_sync_all+0x30/0x30
[  266.474229]  ? error_entry+0x70/0xd0
[  266.477949]  ? trace_hardirqs_off_caller+0xbb/0x310
[  266.482964]  ? trace_hardirqs_on_caller+0xc0/0x310
[  266.487897]  ? syscall_return_slowpath+0x5e0/0x5e0
[  266.492826]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.497676]  ? trace_hardirqs_on_caller+0x310/0x310
[  266.502695]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  266.508151]  ? prepare_exit_to_usermode+0x291/0x3b0
[  266.513184]  ? page_fault+0x8/0x30
[  266.516748]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  266.521593]  ? page_fault+0x8/0x30
[  266.525152]  page_fault+0x1e/0x30
[  266.528602] RIP: 0033:0x404068
[  266.531813] Code: Bad RIP value.
[  266.535174] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  266.540536] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  266.547804] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  266.555075] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  266.562357] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  266.569621] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  266.576928] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  266.576934] warn_alloc_show_mem: 1 callbacks suppressed
[  266.576941] Mem-Info:
[  266.584217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  266.589619] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  266.589619]  active_file:13 inactive_file:28 isolated_file:0
[  266.589619]  unevictable:0 dirty:1 writeback:0 unstable:0
[  266.589619]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  266.589619]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  266.589619]  free:13541 free_pcp:161 free_cma:0
[  266.591991] Call Trace:
[  266.601396] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  266.634412]  <IRQ>
[  266.636985] 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
[  266.664915]  dump_stack+0x244/0x39d
[  266.667043] lowmem_reserve[]: 0 2818 6321 6321
[  266.693148]  ? dump_stack_print_info.cold.1+0x20/0x20
[  266.696762] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  266.701349]  warn_alloc.cold.116+0xb7/0x1bd
[  266.706511] lowmem_reserve[]: 0 0 3503 3503
[  266.734114]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  266.738417] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  266.742736]  ? lock_downgrade+0x900/0x900
[  266.747559] lowmem_reserve[]: 0 0 0 0
[  266.776710]  ? trace_hardirqs_off+0xb8/0x310
[  266.780848] 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
[  266.784648]  ? trace_hardirqs_off+0xb8/0x310
[  266.789029] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  266.802549]  __alloc_pages_slowpath+0x26e8/0x2e10
[  266.806929] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  266.822132]  ? warn_alloc+0x120/0x120
[  266.826943] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  266.841423]  ? print_usage_bug+0xc0/0xc0
[  266.845219] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  266.854039]  ? warn_alloc+0x120/0x120
[  266.858076] 4984 total pagecache pages
[  266.866646]  ? warn_alloc+0x120/0x120
[  266.870430] 0 pages in swap cache
[  266.874303]  ? print_usage_bug+0xc0/0xc0
[  266.878085] Swap cache stats: add 0, delete 0, find 0/0
[  266.881536]  ? print_usage_bug+0xc0/0xc0
[  266.885573] Free swap  = 0kB
[  266.890932]  ? __lock_acquire+0x62f/0x4c20
[  266.894970] Total swap = 0kB
[  266.898161]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  266.902390] 1965979 pages RAM
[  266.905405]  ? should_fail+0x22d/0xd01
[  266.910916] 0 pages HighMem/MovableOnly
[  266.914015]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  266.917884] 342853 pages reserved
[  266.921860]  ? __lock_acquire+0x62f/0x4c20
[  266.926944] 0 pages cma reserved
[  266.930390]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  266.934657] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  266.937957]  ? __lock_acquire+0x62f/0x4c20
[  266.937973]  ? should_fail+0x22d/0xd01
[  266.943149] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  266.949665]  ? find_held_lock+0x36/0x1c0
[  266.953878] syz-fuzzer cpuset=/ mems_allowed=0
[  266.957774]  ? mark_held_locks+0x130/0x130
[  266.980825]  ? mark_held_locks+0x130/0x130
[  266.985061]  ? zap_class+0x640/0x640
[  266.988781]  ? zap_class+0x640/0x640
[  266.992503]  ? print_usage_bug+0xc0/0xc0
[  266.996562]  ? do_raw_spin_unlock+0xa7/0x330
[  267.000973]  ? zap_class+0x640/0x640
[  267.004693]  ? print_usage_bug+0xc0/0xc0
[  267.008770]  ? wq_watchdog_touch+0x9c/0xfe
[  267.013018]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.018560]  ? check_preemption_disabled+0x48/0x280
[  267.023591]  ? __lock_is_held+0xb5/0x140
[  267.027660]  __alloc_pages_nodemask+0xa80/0xde0
[  267.032334]  ? zap_class+0x640/0x640
[  267.036056]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  267.041083]  ? find_held_lock+0x36/0x1c0
[  267.045156]  ? ____cache_alloc_node+0x1c7/0x1e0
[  267.049835]  ? lock_downgrade+0x900/0x900
[  267.053995]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.059544]  cache_grow_begin+0xa5/0x8c0
[  267.063621]  ? do_raw_spin_unlock+0xa7/0x330
[  267.068038]  fallback_alloc+0x204/0x2e0
[  267.072025]  ____cache_alloc_node+0x1c7/0x1e0
[  267.076524]  kmem_cache_alloc_node+0xe3/0x730
[  267.081022]  ? ipv6_get_ifaddr+0x42e/0x620
[  267.085284]  __alloc_skb+0x119/0x770
[  267.089002]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.094297]  ? netdev_alloc_frag+0x1f0/0x1f0
[  267.098703]  ? lock_downgrade+0x900/0x900
[  267.102863]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.108435]  ? refcount_sub_and_test_checked+0x203/0x310
[  267.113909]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  267.119365]  ? addrconf_rs_timer+0x690/0x690
[  267.123799]  ndisc_alloc_skb+0x144/0x340
[  267.127866]  ndisc_send_rs+0x331/0x6e0
[  267.131770]  addrconf_rs_timer+0x314/0x690
[  267.136023]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.140313]  call_timer_fn+0x272/0x920
[  267.144217]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.148486]  ? process_timeout+0x40/0x40
[  267.152555]  ? __run_timers+0x7da/0xc70
[  267.156533]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.161028]  ? _raw_spin_unlock_irq+0x27/0x80
[  267.165533]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.169784]  ? lockdep_hardirqs_on+0x296/0x5b0
[  267.174377]  ? trace_hardirqs_on+0xbd/0x310
[  267.178702]  ? kasan_check_read+0x11/0x20
[  267.182850]  ? __run_timers+0x7da/0xc70
[  267.186826]  ? trace_hardirqs_off_caller+0x310/0x310
[  267.191938]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.196183]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  267.200417]  __run_timers+0x7e5/0xc70
[  267.204233]  ? timer_fixup_init+0x70/0x70
[  267.208381]  ? kasan_check_read+0x11/0x20
[  267.212532]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.217814]  ? rcu_softirq_qs+0x20/0x20
[  267.221806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.227378]  ? check_preemption_disabled+0x48/0x280
[  267.232401]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  267.237164]  ? retint_kernel+0x2d/0x2d
[  267.241051]  ? trace_hardirqs_on_caller+0xc0/0x310
[  267.245982]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  267.250749]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  267.256220]  ? zap_class+0x640/0x640
[  267.259955]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.265499]  ? check_preemption_disabled+0x48/0x280
[  267.270559]  ? __lock_is_held+0xb5/0x140
[  267.274637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.280174]  ? check_preemption_disabled+0x48/0x280
[  267.285195]  run_timer_softirq+0x52/0xb0
[  267.289317]  ? rcu_read_lock_sched_held+0x14f/0x180
[  267.294337]  __do_softirq+0x308/0xb7e
[  267.298145]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  267.302668]  ? lock_downgrade+0x900/0x900
[  267.306840]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  267.311996]  ? pvclock_read_flags+0x160/0x160
[  267.316510]  ? lapic_next_event+0x5a/0x90
[  267.320670]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.326219]  ? kvm_clock_read+0x18/0x30
[  267.330195]  ? kvm_sched_clock_read+0x9/0x20
[  267.334605]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.340146]  ? check_preemption_disabled+0x48/0x280
[  267.345175]  irq_exit+0x17f/0x1c0
[  267.348636]  smp_apic_timer_interrupt+0x1cb/0x760
[  267.353479]  ? smp_reschedule_interrupt+0x109/0x650
[  267.358494]  ? smp_call_function_single_interrupt+0x650/0x650
[  267.364381]  ? interrupt_entry+0xb5/0xc0
[  267.368463]  ? trace_hardirqs_off_caller+0xbb/0x310
[  267.373525]  ? trace_hardirqs_off_caller+0xbb/0x310
[  267.378545]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.383407]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.388421]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.393441]  ? task_prio+0x50/0x50
[  267.396988]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.402535]  ? check_preemption_disabled+0x48/0x280
[  267.407559]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.412411]  apic_timer_interrupt+0xf/0x20
[  267.416638]  </IRQ>
[  267.418885] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  267.423820] 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
[  267.442722] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  267.450442] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  267.457714] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  267.464995] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  267.472281] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  267.479551] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  267.486868]  skb_clone+0x1bb/0x500
[  267.490416]  ? skb_split+0x11e0/0x11e0
[  267.494310]  ? preempt_notifier_register+0x200/0x200
[  267.499410]  ? __switch_to_asm+0x34/0x70
[  267.503470]  ? __switch_to_asm+0x34/0x70
[  267.507545]  ? __switch_to_asm+0x40/0x70
[  267.511608]  ? __switch_to_asm+0x34/0x70
[  267.515670]  ? __switch_to_asm+0x40/0x70
[  267.519735]  ? __switch_to_asm+0x40/0x70
[  267.523810]  ? __switch_to_asm+0x34/0x70
[  267.527874]  ? __switch_to_asm+0x34/0x70
[  267.531935]  ? __switch_to_asm+0x40/0x70
[  267.536009]  ? __switch_to_asm+0x34/0x70
[  267.540105]  bpf_clone_redirect+0xb9/0x490
[  267.544387]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  267.549419]  ? __sched_text_start+0x8/0x8
[  267.553568]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  267.558333]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  267.563109]  ? find_held_lock+0x36/0x1c0
[  267.567181]  ? lock_acquire+0x1ed/0x520
[  267.571160]  ? bpf_test_run+0x3cb/0x780
[  267.575137]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.580684]  ? check_preemption_disabled+0x48/0x280
[  267.585713]  ? kasan_check_read+0x11/0x20
[  267.589870]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.595148]  ? rcu_softirq_qs+0x20/0x20
[  267.599140]  ? preempt_schedule+0x4d/0x60
[  267.603294]  ? ___preempt_schedule+0x16/0x18
[  267.607711]  ? bpf_test_run+0x25d/0x780
[  267.611706]  ? netlink_diag_dump+0x2a0/0x2a0
[  267.616120]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.621660]  ? bpf_test_init.isra.10+0x70/0x100
[  267.626335]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  267.631102]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  267.635943]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  267.641485]  ? fput+0x130/0x1a0
[  267.644776]  ? __bpf_prog_get+0x9b/0x290
[  267.648843]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  267.653688]  ? bpf_prog_test_run+0x130/0x1a0
[  267.658100]  ? __x64_sys_bpf+0x3d8/0x520
[  267.662161]  ? bpf_prog_get+0x20/0x20
[  267.665981]  ? do_syscall_64+0x1b9/0x820
[  267.670042]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  267.675409]  ? syscall_return_slowpath+0x5e0/0x5e0
[  267.680344]  ? trace_hardirqs_on_caller+0x310/0x310
[  267.685363]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  267.690382]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  267.697048]  ? __switch_to_asm+0x40/0x70
[  267.701111]  ? __switch_to_asm+0x34/0x70
[  267.705178]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  267.710028]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  267.715414] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  267.715492] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  267.722344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  267.722350] Call Trace:
[  267.722356]  <IRQ>
[  267.722374]  dump_stack+0x244/0x39d
[  267.722393]  ? dump_stack_print_info.cold.1+0x20/0x20
[  267.728918] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  267.738220]  warn_alloc.cold.116+0xb7/0x1bd
[  267.740779] syz-executor4 cpuset=syz4 mems_allowed=0
[  267.742929]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  267.776403]  ? lock_downgrade+0x900/0x900
[  267.780564]  ? trace_hardirqs_off+0xb8/0x310
[  267.784980]  ? trace_hardirqs_off+0xb8/0x310
[  267.789397]  __alloc_pages_slowpath+0x26e8/0x2e10
[  267.794273]  ? warn_alloc+0x120/0x120
[  267.798080]  ? print_usage_bug+0xc0/0xc0
[  267.802147]  ? warn_alloc+0x120/0x120
[  267.805961]  ? warn_alloc+0x120/0x120
[  267.809768]  ? print_usage_bug+0xc0/0xc0
[  267.814030]  ? kvm_clock_read+0x18/0x30
[  267.818009]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  267.823032]  ? print_usage_bug+0xc0/0xc0
[  267.827096]  ? __lock_acquire+0x62f/0x4c20
[  267.831343]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  267.836882]  ? should_fail+0x22d/0xd01
[  267.840778]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.846063]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.851169]  ? __lock_acquire+0x62f/0x4c20
[  267.855411]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  267.860516]  ? __lock_acquire+0x62f/0x4c20
[  267.864760]  ? should_fail+0x22d/0xd01
[  267.868647]  ? rcu_irq_exit+0x1a2/0x390
[  267.872631]  ? mark_held_locks+0x130/0x130
[  267.876873]  ? mark_held_locks+0x130/0x130
[  267.881117]  ? mark_held_locks+0xc7/0x130
[  267.885275]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  267.890425]  ? zap_class+0x640/0x640
[  267.894141]  ? print_usage_bug+0xc0/0xc0
[  267.898210]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.903757]  ? check_preemption_disabled+0x48/0x280
[  267.908819]  ? __lock_is_held+0xb5/0x140
[  267.912888]  __alloc_pages_nodemask+0xa80/0xde0
[  267.917566]  ? zap_class+0x640/0x640
[  267.921290]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  267.926325]  ? find_held_lock+0x36/0x1c0
[  267.930401]  ? ____cache_alloc_node+0x1c7/0x1e0
[  267.935076]  ? lock_downgrade+0x900/0x900
[  267.939232]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.944788]  cache_grow_begin+0xa5/0x8c0
[  267.948849]  ? do_raw_spin_unlock+0xa7/0x330
[  267.953274]  fallback_alloc+0x204/0x2e0
[  267.957261]  ____cache_alloc_node+0x1c7/0x1e0
[  267.962027]  kmem_cache_alloc_node+0xe3/0x730
[  267.966528]  ? ipv6_get_ifaddr+0x42e/0x620
[  267.970780]  __alloc_skb+0x119/0x770
[  267.974495]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  267.979795]  ? netdev_alloc_frag+0x1f0/0x1f0
[  267.984212]  ? lock_downgrade+0x900/0x900
[  267.988368]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  267.993907]  ? refcount_sub_and_test_checked+0x203/0x310
[  267.999381]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  268.004837]  ? addrconf_rs_timer+0x690/0x690
[  268.009348]  ndisc_alloc_skb+0x144/0x340
[  268.013417]  ndisc_send_rs+0x331/0x6e0
[  268.017311]  addrconf_rs_timer+0x314/0x690
[  268.021553]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.025801]  call_timer_fn+0x272/0x920
[  268.029690]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.033932]  ? process_timeout+0x40/0x40
[  268.038007]  ? mark_held_locks+0xc7/0x130
[  268.042161]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.046659]  ? _raw_spin_unlock_irq+0x27/0x80
[  268.051153]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.055390]  ? lockdep_hardirqs_on+0x296/0x5b0
[  268.059977]  ? trace_hardirqs_on+0xbd/0x310
[  268.064303]  ? kasan_check_read+0x11/0x20
[  268.068454]  ? __run_timers+0x7da/0xc70
[  268.072434]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.077543]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.081788]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  268.086023]  __run_timers+0x7e5/0xc70
[  268.089834]  ? timer_fixup_init+0x70/0x70
[  268.093990]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  268.099007]  ? zap_class+0x640/0x640
[  268.102728]  ? print_usage_bug+0xc0/0xc0
[  268.106806]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  268.112008]  ? find_held_lock+0x36/0x1c0
[  268.116078]  ? zap_class+0x640/0x640
[  268.119815]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.125358]  ? check_preemption_disabled+0x48/0x280
[  268.130386]  ? __lock_is_held+0xb5/0x140
[  268.134452]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.139995]  ? check_preemption_disabled+0x48/0x280
[  268.145022]  run_timer_softirq+0x52/0xb0
[  268.149086]  ? rcu_read_lock_sched_held+0x14f/0x180
[  268.154108]  __do_softirq+0x308/0xb7e
[  268.157914]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  268.162409]  ? lock_downgrade+0x900/0x900
[  268.166560]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  268.171673]  ? pvclock_read_flags+0x160/0x160
[  268.176172]  ? lapic_next_event+0x5a/0x90
[  268.180322]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.185869]  ? kvm_clock_read+0x18/0x30
[  268.189847]  ? kvm_sched_clock_read+0x9/0x20
[  268.194265]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.199808]  ? check_preemption_disabled+0x48/0x280
[  268.204841]  irq_exit+0x17f/0x1c0
[  268.208302]  smp_apic_timer_interrupt+0x1cb/0x760
[  268.213146]  ? smp_reschedule_interrupt+0x109/0x650
[  268.218169]  ? smp_call_function_single_interrupt+0x650/0x650
[  268.224055]  ? interrupt_entry+0xb5/0xc0
[  268.228119]  ? trace_hardirqs_off_caller+0xbb/0x310
[  268.233138]  ? trace_hardirqs_off_caller+0xbb/0x310
[  268.238159]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.243004]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.248021]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.253043]  ? task_prio+0x50/0x50
[  268.256588]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.262130]  ? check_preemption_disabled+0x48/0x280
[  268.267152]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.272007]  apic_timer_interrupt+0xf/0x20
[  268.276240]  </IRQ>
[  268.278500] RIP: 0010:check_memory_region+0x121/0x1b0
[  268.283691] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  268.302590] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  268.310299] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  268.317567] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  268.324836] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  268.332102] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  268.339373] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  268.346659]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.351949]  kasan_check_read+0x11/0x20
[  268.355925]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.361030]  ? rcu_softirq_qs+0x20/0x20
[  268.365016]  rcu_is_watching+0x10/0x30
[  268.368907]  list_lru_count_one+0x362/0x450
[  268.373235]  ? list_lru_isolate_move+0x3c0/0x3c0
[  268.378000]  ? shmem_free_inode+0xd0/0xd0
[  268.382153]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.387695]  ? ubifs_shrink_count+0xc4/0x100
[  268.392117]  super_cache_count+0x153/0x2e0
[  268.396361]  do_shrink_slab+0x1b1/0xd30
[  268.400341]  ? lock_acquire+0x1ed/0x520
[  268.404324]  ? snapshot_refaults+0x290/0x290
[  268.408739]  ? lock_release+0xa00/0xa00
[  268.412735]  ? perf_trace_sched_process_exec+0x860/0x860
[  268.418207]  ? down_read_trylock+0xda/0x140
[  268.422528]  ? shrink_slab+0x207/0x8c0
[  268.426419]  ? downgrade_write+0x270/0x270
[  268.430667]  shrink_slab+0x389/0x8c0
[  268.434382]  ? shrink_active_list+0x1f00/0x1f00
[  268.439066]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  268.444697]  ? kasan_check_read+0x11/0x20
[  268.448845]  ? do_raw_spin_unlock+0xa7/0x330
[  268.453270]  ? ___preempt_schedule+0x16/0x18
[  268.457693]  ? _raw_spin_unlock+0x3f/0x50
[  268.461850]  shrink_node+0x431/0x16b0
[  268.465651]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  268.470957]  ? shrink_node_memcg+0x18f0/0x18f0
[  268.475544]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  268.480128]  ? trace_hardirqs_on+0xbd/0x310
[  268.484449]  ? vmpressure+0x271/0x340
[  268.488267]  ? do_raw_spin_trylock+0x270/0x270
[  268.492861]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  268.498400]  ? __cpuset_node_allowed+0x19b/0x660
[  268.503164]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  268.508880]  ? vmpressure+0x1a2/0x340
[  268.512695]  do_try_to_free_pages+0x3e7/0x1290
[  268.517312]  ? zap_class+0x640/0x640
[  268.521046]  ? shrink_node+0x16b0/0x16b0
[  268.525109]  ? __lock_is_held+0xb5/0x140
[  268.529227]  try_to_free_pages+0x4d0/0xb90
[  268.533488]  ? do_try_to_free_pages+0x1290/0x1290
[  268.538371]  ? lock_acquire+0x1ed/0x520
[  268.542347]  ? set_page_refcounted+0x280/0x280
[  268.546935]  ? lock_release+0xa00/0xa00
[  268.550912]  ? _raw_spin_unlock_irq+0x60/0x80
[  268.555414]  ? psi_memstall_enter+0x240/0x2b0
[  268.559926]  ? psi_memstall_tick+0x230/0x230
[  268.564347]  __alloc_pages_slowpath+0xa14/0x2e10
[  268.569131]  ? warn_alloc+0x120/0x120
[  268.572936]  ? mark_held_locks+0x130/0x130
[  268.577178]  ? find_get_entry+0xaae/0x1120
[  268.581425]  ? filemap_map_pages+0x1a20/0x1a20
[  268.586013]  ? zap_class+0x640/0x640
[  268.589736]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  268.595287]  ? check_preemption_disabled+0x48/0x280
[  268.600307]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.605848]  ? should_fail+0x22d/0xd01
[  268.609751]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  268.614861]  ? zap_class+0x640/0x640
[  268.618603]  ? __lock_is_held+0xb5/0x140
[  268.622675]  ? mark_held_locks+0x130/0x130
[  268.626913]  ? lock_release+0xa00/0xa00
[  268.630892]  ? perf_trace_sched_process_exec+0x860/0x860
[  268.636344]  ? xa_load+0x2ba/0x460
[  268.639891]  ? lock_downgrade+0x900/0x900
[  268.644051]  ? __might_sleep+0x95/0x190
[  268.648031]  __alloc_pages_nodemask+0xa80/0xde0
[  268.652708]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  268.657750]  ? __page_cache_alloc+0x191/0x5c0
[  268.662245]  ? xa_load+0x2e1/0x460
[  268.665792]  ? xa_clear_mark+0x40/0x40
[  268.669683]  ? zap_class+0x640/0x640
[  268.673404]  ? zap_class+0x640/0x640
[  268.677122]  ? zap_class+0x640/0x640
[  268.680840]  ? __do_page_cache_readahead+0x663/0x810
[  268.685954]  ? find_held_lock+0x36/0x1c0
[  268.690025]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  268.695573]  alloc_pages_current+0x173/0x350
[  268.699991]  __page_cache_alloc+0x38c/0x5c0
[  268.704326]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.709262]  ? kasan_check_read+0x11/0x20
[  268.713413]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.718695]  ? generic_perform_write+0x6a0/0x6a0
[  268.723482]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.729021]  ? check_preemption_disabled+0x48/0x280
[  268.734046]  filemap_fault+0x1595/0x25f0
[  268.738123]  ? __lock_page_or_retry+0xa00/0xa00
[  268.742798]  ? mark_held_locks+0x130/0x130
[  268.747042]  ? filemap_map_pages+0xd6b/0x1a20
[  268.751539]  ? lock_downgrade+0x900/0x900
[  268.755691]  ? check_preemption_disabled+0x48/0x280
[  268.760715]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.765655]  ? kasan_check_read+0x11/0x20
[  268.769830]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.775106]  ? rcu_softirq_qs+0x20/0x20
[  268.779097]  ? filemap_map_pages+0xd92/0x1a20
[  268.783611]  ? find_get_entries_tag+0x1400/0x1400
[  268.788458]  ? find_held_lock+0x36/0x1c0
[  268.792539]  ? lock_acquire+0x1ed/0x520
[  268.796517]  ? ext4_filemap_fault+0x7a/0xad
[  268.800849]  ? lock_release+0xa00/0xa00
[  268.804827]  ? perf_trace_sched_process_exec+0x860/0x860
[  268.810313]  ? print_usage_bug+0xc0/0xc0
[  268.814414]  ? down_read+0x8d/0x120
[  268.818040]  ? ext4_filemap_fault+0x7a/0xad
[  268.822363]  ? __down_interruptible+0x700/0x700
[  268.827040]  ? find_held_lock+0x36/0x1c0
[  268.831110]  ext4_filemap_fault+0x82/0xad
[  268.835265]  __do_fault+0x100/0x6b0
[  268.838898]  ? lock_downgrade+0x900/0x900
[  268.843048]  ? pmd_devmap_trans_unstable+0x220/0x220
[  268.848185]  ? kasan_check_read+0x11/0x20
[  268.852347]  ? do_raw_spin_unlock+0xa7/0x330
[  268.856763]  ? do_raw_spin_trylock+0x270/0x270
[  268.861367]  __handle_mm_fault+0x3ea0/0x5be0
[  268.865804]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  268.870664]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  268.875293]  ? zap_class+0x640/0x640
[  268.879013]  ? zap_class+0x640/0x640
[  268.882728]  ? __x64_sys_futex+0x53e/0x6a0
[  268.886979]  ? find_held_lock+0x36/0x1c0
[  268.891098]  ? handle_mm_fault+0x42a/0xc70
[  268.895337]  ? lock_downgrade+0x900/0x900
[  268.899491]  ? check_preemption_disabled+0x48/0x280
[  268.904508]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  268.909440]  ? kasan_check_read+0x11/0x20
[  268.913590]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  268.918895]  ? rcu_softirq_qs+0x20/0x20
[  268.922871]  ? trace_hardirqs_off_caller+0x310/0x310
[  268.927976]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  268.933516]  ? check_preemption_disabled+0x48/0x280
[  268.938546]  handle_mm_fault+0x54f/0xc70
[  268.942626]  ? __handle_mm_fault+0x5be0/0x5be0
[  268.947672]  ? find_vma+0x34/0x190
[  268.951220]  __do_page_fault+0x5e8/0xe60
[  268.955334]  ? trace_hardirqs_off+0xb8/0x310
[  268.959764]  do_page_fault+0xf2/0x7e0
[  268.963569]  ? vmalloc_sync_all+0x30/0x30
[  268.967727]  ? error_entry+0x70/0xd0
[  268.971501]  ? trace_hardirqs_off_caller+0xbb/0x310
[  268.976547]  ? trace_hardirqs_on_caller+0xc0/0x310
[  268.981508]  ? syscall_return_slowpath+0x5e0/0x5e0
[  268.986466]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  268.991310]  ? trace_hardirqs_on_caller+0x310/0x310
[  268.996371]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  269.001859]  ? prepare_exit_to_usermode+0x291/0x3b0
[  269.006876]  ? page_fault+0x8/0x30
[  269.010419]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.015297]  ? page_fault+0x8/0x30
[  269.018837]  page_fault+0x1e/0x30
[  269.022289] RIP: 0033:0x404068
[  269.025496] Code: Bad RIP value.
[  269.028858] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  269.034217] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  269.041501] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  269.048777] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  269.056049] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  269.063317] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  269.070609] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  269.070615] warn_alloc_show_mem: 1 callbacks suppressed
[  269.070622] Mem-Info:
[  269.077916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  269.083292] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  269.083292]  active_file:13 inactive_file:28 isolated_file:0
[  269.083292]  unevictable:0 dirty:1 writeback:0 unstable:0
[  269.083292]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  269.083292]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  269.083292]  free:13541 free_pcp:161 free_cma:0
[  269.085663] Call Trace:
[  269.095051] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  269.128065]  <IRQ>
[  269.130639] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  269.158570]  dump_stack+0x244/0x39d
[  269.160707] lowmem_reserve[]: 0 2818 6321 6321
[  269.186989]  ? dump_stack_print_info.cold.1+0x20/0x20
[  269.190590] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  269.195172]  warn_alloc.cold.116+0xb7/0x1bd
[  269.200337] lowmem_reserve[]: 0 0 3503 3503
[  269.227918]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  269.232213] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  269.236530]  ? lock_downgrade+0x900/0x900
[  269.241356] lowmem_reserve[]: 0 0 0 0
[  269.270500]  ? trace_hardirqs_off+0xb8/0x310
[  269.274617] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  269.278414]  ? trace_hardirqs_off+0xb8/0x310
[  269.282813] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  269.296332]  __alloc_pages_slowpath+0x26e8/0x2e10
[  269.300714] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  269.315900]  ? warn_alloc+0x120/0x120
[  269.320704] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  269.335175]  ? print_usage_bug+0xc0/0xc0
[  269.338958] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  269.347787]  ? warn_alloc+0x120/0x120
[  269.351825] 4984 total pagecache pages
[  269.360395]  ? warn_alloc+0x120/0x120
[  269.364193] 0 pages in swap cache
[  269.368069]  ? print_usage_bug+0xc0/0xc0
[  269.371846] Swap cache stats: add 0, delete 0, find 0/0
[  269.375290]  ? print_usage_bug+0xc0/0xc0
[  269.379328] Free swap  = 0kB
[  269.384683]  ? __lock_acquire+0x62f/0x4c20
[  269.388718] Total swap = 0kB
[  269.391768]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.395980] 1965979 pages RAM
[  269.399001]  ? should_fail+0x22d/0xd01
[  269.404511] 0 pages HighMem/MovableOnly
[  269.407623]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.411486] 342853 pages reserved
[  269.415454]  ? __lock_acquire+0x62f/0x4c20
[  269.420536] 0 pages cma reserved
[  269.423984]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  269.428283] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  269.431561]  ? __lock_acquire+0x62f/0x4c20
[  269.431574]  ? should_fail+0x22d/0xd01
[  269.431589]  ? find_held_lock+0x36/0x1c0
[  269.431625]  ? mark_held_locks+0x130/0x130
[  269.436772] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  269.443196]  ? mark_held_locks+0x130/0x130
[  269.447420] syz-fuzzer cpuset=/ mems_allowed=0
[  269.451299]  ? zap_class+0x640/0x640
[  269.482290]  ? zap_class+0x640/0x640
[  269.486011]  ? print_usage_bug+0xc0/0xc0
[  269.490088]  ? do_raw_spin_unlock+0xa7/0x330
[  269.494513]  ? zap_class+0x640/0x640
[  269.498230]  ? print_usage_bug+0xc0/0xc0
[  269.502299]  ? wq_watchdog_touch+0x9c/0xfe
[  269.506569]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.512124]  ? check_preemption_disabled+0x48/0x280
[  269.517172]  ? __lock_is_held+0xb5/0x140
[  269.521239]  __alloc_pages_nodemask+0xa80/0xde0
[  269.525943]  ? zap_class+0x640/0x640
[  269.529667]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  269.534695]  ? find_held_lock+0x36/0x1c0
[  269.538787]  ? ____cache_alloc_node+0x1c7/0x1e0
[  269.543465]  ? lock_downgrade+0x900/0x900
[  269.547636]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.553181]  cache_grow_begin+0xa5/0x8c0
[  269.557246]  ? do_raw_spin_unlock+0xa7/0x330
[  269.561663]  fallback_alloc+0x204/0x2e0
[  269.565662]  ____cache_alloc_node+0x1c7/0x1e0
[  269.570168]  kmem_cache_alloc_node+0xe3/0x730
[  269.574680]  ? ipv6_get_ifaddr+0x42e/0x620
[  269.578934]  __alloc_skb+0x119/0x770
[  269.582653]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.587935]  ? netdev_alloc_frag+0x1f0/0x1f0
[  269.592346]  ? lock_downgrade+0x900/0x900
[  269.596514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.602054]  ? refcount_sub_and_test_checked+0x203/0x310
[  269.607513]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  269.612969]  ? addrconf_rs_timer+0x690/0x690
[  269.617391]  ndisc_alloc_skb+0x144/0x340
[  269.621469]  ndisc_send_rs+0x331/0x6e0
[  269.625378]  addrconf_rs_timer+0x314/0x690
[  269.629621]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.633879]  call_timer_fn+0x272/0x920
[  269.637778]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.642020]  ? process_timeout+0x40/0x40
[  269.646120]  ? __run_timers+0x7da/0xc70
[  269.650101]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.654598]  ? _raw_spin_unlock_irq+0x27/0x80
[  269.659091]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.663346]  ? lockdep_hardirqs_on+0x296/0x5b0
[  269.667932]  ? trace_hardirqs_on+0xbd/0x310
[  269.672253]  ? kasan_check_read+0x11/0x20
[  269.676409]  ? __run_timers+0x7da/0xc70
[  269.680387]  ? trace_hardirqs_off_caller+0x310/0x310
[  269.685499]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.689751]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  269.693992]  __run_timers+0x7e5/0xc70
[  269.697818]  ? timer_fixup_init+0x70/0x70
[  269.701969]  ? kasan_check_read+0x11/0x20
[  269.706122]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  269.711398]  ? rcu_softirq_qs+0x20/0x20
[  269.715391]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.720932]  ? check_preemption_disabled+0x48/0x280
[  269.725960]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  269.730722]  ? retint_kernel+0x2d/0x2d
[  269.734623]  ? trace_hardirqs_on_caller+0xc0/0x310
[  269.739574]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  269.744335]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  269.749814]  ? zap_class+0x640/0x640
[  269.753540]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.759094]  ? check_preemption_disabled+0x48/0x280
[  269.764139]  ? __lock_is_held+0xb5/0x140
[  269.768202]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.773741]  ? check_preemption_disabled+0x48/0x280
[  269.778786]  run_timer_softirq+0x52/0xb0
[  269.782849]  ? rcu_read_lock_sched_held+0x14f/0x180
[  269.787867]  __do_softirq+0x308/0xb7e
[  269.791673]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  269.796165]  ? lock_downgrade+0x900/0x900
[  269.800321]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  269.805437]  ? pvclock_read_flags+0x160/0x160
[  269.810021]  ? lapic_next_event+0x5a/0x90
[  269.814723]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.820293]  ? kvm_clock_read+0x18/0x30
[  269.824268]  ? kvm_sched_clock_read+0x9/0x20
[  269.828688]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  269.834279]  ? check_preemption_disabled+0x48/0x280
[  269.839306]  irq_exit+0x17f/0x1c0
[  269.842778]  smp_apic_timer_interrupt+0x1cb/0x760
[  269.847620]  ? smp_reschedule_interrupt+0x109/0x650
[  269.852636]  ? smp_call_function_single_interrupt+0x650/0x650
[  269.858519]  ? interrupt_entry+0xb5/0xc0
[  269.862585]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.867605]  ? trace_hardirqs_off_caller+0xbb/0x310
[  269.872626]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.877469]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.882498]  ? trace_hardirqs_on_caller+0x310/0x310
[  269.887517]  ? task_prio+0x50/0x50
[  269.891065]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  269.896606]  ? check_preemption_disabled+0x48/0x280
[  269.901633]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  269.906490]  apic_timer_interrupt+0xf/0x20
[  269.910738]  </IRQ>
[  269.912996] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  269.917937] 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
[  269.936835] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  269.944541] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  269.951825] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  269.959097] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  269.966379] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  269.973649] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  269.980958]  skb_clone+0x1bb/0x500
[  269.984503]  ? skb_split+0x11e0/0x11e0
[  269.988395]  ? preempt_notifier_register+0x200/0x200
[  269.993497]  ? __switch_to_asm+0x34/0x70
[  269.997555]  ? __switch_to_asm+0x34/0x70
[  270.001612]  ? __switch_to_asm+0x40/0x70
[  270.005675]  ? __switch_to_asm+0x34/0x70
[  270.009733]  ? __switch_to_asm+0x40/0x70
[  270.013806]  ? __switch_to_asm+0x40/0x70
[  270.017869]  ? __switch_to_asm+0x34/0x70
[  270.021931]  ? __switch_to_asm+0x34/0x70
[  270.025989]  ? __switch_to_asm+0x40/0x70
[  270.030050]  ? __switch_to_asm+0x34/0x70
[  270.034116]  bpf_clone_redirect+0xb9/0x490
[  270.038360]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  270.043380]  ? __sched_text_start+0x8/0x8
[  270.047533]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  270.052305]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  270.057071]  ? find_held_lock+0x36/0x1c0
[  270.061140]  ? lock_acquire+0x1ed/0x520
[  270.065117]  ? bpf_test_run+0x3cb/0x780
[  270.069094]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.074635]  ? check_preemption_disabled+0x48/0x280
[  270.079679]  ? kasan_check_read+0x11/0x20
[  270.083832]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.089107]  ? rcu_softirq_qs+0x20/0x20
[  270.093087]  ? preempt_schedule+0x4d/0x60
[  270.097240]  ? ___preempt_schedule+0x16/0x18
[  270.101661]  ? bpf_test_run+0x25d/0x780
[  270.105678]  ? netlink_diag_dump+0x2a0/0x2a0
[  270.110090]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.115632]  ? bpf_test_init.isra.10+0x70/0x100
[  270.120307]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  270.125078]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  270.129924]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  270.135481]  ? fput+0x130/0x1a0
[  270.138787]  ? __bpf_prog_get+0x9b/0x290
[  270.142853]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  270.147701]  ? bpf_prog_test_run+0x130/0x1a0
[  270.152145]  ? __x64_sys_bpf+0x3d8/0x520
[  270.156204]  ? bpf_prog_get+0x20/0x20
[  270.160026]  ? do_syscall_64+0x1b9/0x820
[  270.164087]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  270.169458]  ? syscall_return_slowpath+0x5e0/0x5e0
[  270.174391]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.179412]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  270.184429]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  270.191097]  ? __switch_to_asm+0x40/0x70
[  270.195157]  ? __switch_to_asm+0x34/0x70
[  270.199229]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.204082]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  270.209466] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  270.209565] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  270.216410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  270.216415] Call Trace:
[  270.216422]  <IRQ>
[  270.216439]  dump_stack+0x244/0x39d
[  270.216458]  ? dump_stack_print_info.cold.1+0x20/0x20
[  270.223014] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  270.232309]  warn_alloc.cold.116+0xb7/0x1bd
[  270.234882] syz-executor4 cpuset=syz4 mems_allowed=0
[  270.237026]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  270.270518]  ? lock_downgrade+0x900/0x900
[  270.274678]  ? trace_hardirqs_off+0xb8/0x310
[  270.279097]  ? trace_hardirqs_off+0xb8/0x310
[  270.283515]  __alloc_pages_slowpath+0x26e8/0x2e10
[  270.288431]  ? warn_alloc+0x120/0x120
[  270.292249]  ? print_usage_bug+0xc0/0xc0
[  270.296333]  ? warn_alloc+0x120/0x120
[  270.300172]  ? warn_alloc+0x120/0x120
[  270.303979]  ? print_usage_bug+0xc0/0xc0
[  270.308048]  ? print_usage_bug+0xc0/0xc0
[  270.312113]  ? __lock_acquire+0x62f/0x4c20
[  270.316358]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.321909]  ? should_fail+0x22d/0xd01
[  270.325805]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.330910]  ? __lock_acquire+0x62f/0x4c20
[  270.335152]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  270.340253]  ? __lock_acquire+0x62f/0x4c20
[  270.344522]  ? should_fail+0x22d/0xd01
[  270.348437]  ? find_held_lock+0x36/0x1c0
[  270.352511]  ? mark_held_locks+0x130/0x130
[  270.356803]  ? mark_held_locks+0x130/0x130
[  270.361056]  ? zap_class+0x640/0x640
[  270.364776]  ? zap_class+0x640/0x640
[  270.368508]  ? print_usage_bug+0xc0/0xc0
[  270.372567]  ? do_raw_spin_unlock+0xa7/0x330
[  270.376979]  ? zap_class+0x640/0x640
[  270.380694]  ? print_usage_bug+0xc0/0xc0
[  270.384763]  ? wq_watchdog_touch+0x9c/0xfe
[  270.389005]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.394564]  ? check_preemption_disabled+0x48/0x280
[  270.399595]  ? __lock_is_held+0xb5/0x140
[  270.403664]  __alloc_pages_nodemask+0xa80/0xde0
[  270.408334]  ? zap_class+0x640/0x640
[  270.412058]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  270.417085]  ? find_held_lock+0x36/0x1c0
[  270.421157]  ? ____cache_alloc_node+0x1c7/0x1e0
[  270.425847]  ? lock_downgrade+0x900/0x900
[  270.430003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.435549]  cache_grow_begin+0xa5/0x8c0
[  270.439614]  ? do_raw_spin_unlock+0xa7/0x330
[  270.444047]  fallback_alloc+0x204/0x2e0
[  270.448046]  ____cache_alloc_node+0x1c7/0x1e0
[  270.452547]  kmem_cache_alloc_node+0xe3/0x730
[  270.457054]  ? ipv6_get_ifaddr+0x42e/0x620
[  270.461319]  __alloc_skb+0x119/0x770
[  270.465037]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.470325]  ? netdev_alloc_frag+0x1f0/0x1f0
[  270.474737]  ? lock_downgrade+0x900/0x900
[  270.478906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.484448]  ? refcount_sub_and_test_checked+0x203/0x310
[  270.489921]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  270.495378]  ? addrconf_rs_timer+0x690/0x690
[  270.499827]  ndisc_alloc_skb+0x144/0x340
[  270.503894]  ndisc_send_rs+0x331/0x6e0
[  270.507834]  addrconf_rs_timer+0x314/0x690
[  270.512074]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.516317]  call_timer_fn+0x272/0x920
[  270.520203]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.524441]  ? process_timeout+0x40/0x40
[  270.528542]  ? mark_held_locks+0xc7/0x130
[  270.532709]  ? _raw_spin_unlock_irq+0x27/0x80
[  270.537202]  ? _raw_spin_unlock_irq+0x27/0x80
[  270.541695]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.545934]  ? lockdep_hardirqs_on+0x296/0x5b0
[  270.550518]  ? trace_hardirqs_on+0xbd/0x310
[  270.554845]  ? kasan_check_read+0x11/0x20
[  270.558997]  ? __run_timers+0x7da/0xc70
[  270.562975]  ? trace_hardirqs_off_caller+0x310/0x310
[  270.568088]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.572330]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  270.576564]  __run_timers+0x7e5/0xc70
[  270.580392]  ? timer_fixup_init+0x70/0x70
[  270.584547]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  270.589582]  ? zap_class+0x640/0x640
[  270.593305]  ? print_usage_bug+0xc0/0xc0
[  270.597369]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  270.602566]  ? find_held_lock+0x36/0x1c0
[  270.606637]  ? zap_class+0x640/0x640
[  270.610363]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.615902]  ? check_preemption_disabled+0x48/0x280
[  270.620933]  ? __lock_is_held+0xb5/0x140
[  270.625004]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.630555]  ? check_preemption_disabled+0x48/0x280
[  270.635588]  run_timer_softirq+0x52/0xb0
[  270.639648]  ? rcu_read_lock_sched_held+0x14f/0x180
[  270.644668]  __do_softirq+0x308/0xb7e
[  270.648482]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  270.652983]  ? lock_downgrade+0x900/0x900
[  270.657136]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  270.662267]  ? pvclock_read_flags+0x160/0x160
[  270.666790]  ? lapic_next_event+0x5a/0x90
[  270.670941]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.676489]  ? kvm_clock_read+0x18/0x30
[  270.680478]  ? kvm_sched_clock_read+0x9/0x20
[  270.684891]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.690434]  ? check_preemption_disabled+0x48/0x280
[  270.695461]  irq_exit+0x17f/0x1c0
[  270.698917]  smp_apic_timer_interrupt+0x1cb/0x760
[  270.703770]  ? smp_reschedule_interrupt+0x109/0x650
[  270.708794]  ? smp_call_function_single_interrupt+0x650/0x650
[  270.714678]  ? interrupt_entry+0xb5/0xc0
[  270.718773]  ? trace_hardirqs_off_caller+0xbb/0x310
[  270.723790]  ? trace_hardirqs_off_caller+0xbb/0x310
[  270.728820]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.733664]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.738679]  ? trace_hardirqs_on_caller+0x310/0x310
[  270.743697]  ? task_prio+0x50/0x50
[  270.747239]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  270.752787]  ? check_preemption_disabled+0x48/0x280
[  270.757819]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  270.762671]  apic_timer_interrupt+0xf/0x20
[  270.766901]  </IRQ>
[  270.769141] RIP: 0010:check_memory_region+0x121/0x1b0
[  270.774346] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  270.793242] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  270.800957] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  270.808242] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  270.815513] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  270.822789] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  270.830071] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  270.837353]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.842643]  kasan_check_read+0x11/0x20
[  270.846619]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  270.851762]  ? rcu_softirq_qs+0x20/0x20
[  270.855756]  rcu_is_watching+0x10/0x30
[  270.859664]  list_lru_count_one+0x362/0x450
[  270.863990]  ? list_lru_isolate_move+0x3c0/0x3c0
[  270.868757]  ? shmem_free_inode+0xd0/0xd0
[  270.872910]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  270.878450]  ? ubifs_shrink_count+0xc4/0x100
[  270.882897]  super_cache_count+0x153/0x2e0
[  270.887137]  do_shrink_slab+0x1b1/0xd30
[  270.891119]  ? lock_acquire+0x1ed/0x520
[  270.895098]  ? snapshot_refaults+0x290/0x290
[  270.899512]  ? lock_release+0xa00/0xa00
[  270.903500]  ? perf_trace_sched_process_exec+0x860/0x860
[  270.908976]  ? down_read_trylock+0xda/0x140
[  270.913299]  ? shrink_slab+0x207/0x8c0
[  270.917196]  ? downgrade_write+0x270/0x270
[  270.921442]  shrink_slab+0x389/0x8c0
[  270.925163]  ? shrink_active_list+0x1f00/0x1f00
[  270.929842]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  270.935471]  ? kasan_check_read+0x11/0x20
[  270.939618]  ? do_raw_spin_unlock+0xa7/0x330
[  270.944033]  ? ___preempt_schedule+0x16/0x18
[  270.948993]  ? _raw_spin_unlock+0x3f/0x50
[  270.953149]  shrink_node+0x431/0x16b0
[  270.956952]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  270.962261]  ? shrink_node_memcg+0x18f0/0x18f0
[  270.966845]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  270.971445]  ? trace_hardirqs_on+0xbd/0x310
[  270.975786]  ? vmpressure+0x271/0x340
[  270.979593]  ? do_raw_spin_trylock+0x270/0x270
[  270.984190]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  270.989733]  ? __cpuset_node_allowed+0x19b/0x660
[  270.994519]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  271.000246]  ? vmpressure+0x1a2/0x340
[  271.004067]  do_try_to_free_pages+0x3e7/0x1290
[  271.008654]  ? zap_class+0x640/0x640
[  271.012408]  ? shrink_node+0x16b0/0x16b0
[  271.016470]  ? __lock_is_held+0xb5/0x140
[  271.020574]  try_to_free_pages+0x4d0/0xb90
[  271.024837]  ? do_try_to_free_pages+0x1290/0x1290
[  271.029712]  ? lock_acquire+0x1ed/0x520
[  271.033699]  ? set_page_refcounted+0x280/0x280
[  271.038292]  ? lock_release+0xa00/0xa00
[  271.042273]  ? _raw_spin_unlock_irq+0x60/0x80
[  271.046778]  ? psi_memstall_enter+0x240/0x2b0
[  271.051278]  ? psi_memstall_tick+0x230/0x230
[  271.055704]  __alloc_pages_slowpath+0xa14/0x2e10
[  271.060530]  ? warn_alloc+0x120/0x120
[  271.064346]  ? mark_held_locks+0x130/0x130
[  271.068590]  ? find_get_entry+0xaae/0x1120
[  271.072869]  ? filemap_map_pages+0x1a20/0x1a20
[  271.077456]  ? zap_class+0x640/0x640
[  271.081182]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  271.086724]  ? check_preemption_disabled+0x48/0x280
[  271.091761]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.097305]  ? should_fail+0x22d/0xd01
[  271.101199]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  271.106307]  ? zap_class+0x640/0x640
[  271.110049]  ? __lock_is_held+0xb5/0x140
[  271.114121]  ? mark_held_locks+0x130/0x130
[  271.118362]  ? lock_release+0xa00/0xa00
[  271.122338]  ? perf_trace_sched_process_exec+0x860/0x860
[  271.127798]  ? xa_load+0x2ba/0x460
[  271.131340]  ? lock_downgrade+0x900/0x900
[  271.135498]  ? __might_sleep+0x95/0x190
[  271.139481]  __alloc_pages_nodemask+0xa80/0xde0
[  271.144160]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  271.149178]  ? __page_cache_alloc+0x191/0x5c0
[  271.153675]  ? xa_load+0x2e1/0x460
[  271.157224]  ? xa_clear_mark+0x40/0x40
[  271.161121]  ? zap_class+0x640/0x640
[  271.164844]  ? zap_class+0x640/0x640
[  271.168559]  ? zap_class+0x640/0x640
[  271.172285]  ? __do_page_cache_readahead+0x663/0x810
[  271.177396]  ? find_held_lock+0x36/0x1c0
[  271.181464]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  271.187015]  alloc_pages_current+0x173/0x350
[  271.191430]  __page_cache_alloc+0x38c/0x5c0
[  271.195760]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.200691]  ? kasan_check_read+0x11/0x20
[  271.204845]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.210127]  ? generic_perform_write+0x6a0/0x6a0
[  271.214885]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.220430]  ? check_preemption_disabled+0x48/0x280
[  271.225458]  filemap_fault+0x1595/0x25f0
[  271.229539]  ? __lock_page_or_retry+0xa00/0xa00
[  271.234213]  ? mark_held_locks+0x130/0x130
[  271.238463]  ? filemap_map_pages+0xd6b/0x1a20
[  271.242961]  ? lock_downgrade+0x900/0x900
[  271.247113]  ? check_preemption_disabled+0x48/0x280
[  271.252133]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.257064]  ? kasan_check_read+0x11/0x20
[  271.261211]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.266515]  ? rcu_softirq_qs+0x20/0x20
[  271.270504]  ? filemap_map_pages+0xd92/0x1a20
[  271.275013]  ? find_get_entries_tag+0x1400/0x1400
[  271.279857]  ? find_held_lock+0x36/0x1c0
[  271.283938]  ? lock_acquire+0x1ed/0x520
[  271.287917]  ? ext4_filemap_fault+0x7a/0xad
[  271.292246]  ? lock_release+0xa00/0xa00
[  271.296226]  ? perf_trace_sched_process_exec+0x860/0x860
[  271.301717]  ? print_usage_bug+0xc0/0xc0
[  271.305800]  ? down_read+0x8d/0x120
[  271.309429]  ? ext4_filemap_fault+0x7a/0xad
[  271.313760]  ? __down_interruptible+0x700/0x700
[  271.318438]  ? find_held_lock+0x36/0x1c0
[  271.322507]  ext4_filemap_fault+0x82/0xad
[  271.326663]  __do_fault+0x100/0x6b0
[  271.330296]  ? lock_downgrade+0x900/0x900
[  271.334449]  ? pmd_devmap_trans_unstable+0x220/0x220
[  271.339563]  ? kasan_check_read+0x11/0x20
[  271.343709]  ? do_raw_spin_unlock+0xa7/0x330
[  271.348123]  ? do_raw_spin_trylock+0x270/0x270
[  271.352725]  __handle_mm_fault+0x3ea0/0x5be0
[  271.357155]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  271.362011]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  271.366605]  ? zap_class+0x640/0x640
[  271.370335]  ? zap_class+0x640/0x640
[  271.374048]  ? __x64_sys_futex+0x53e/0x6a0
[  271.378291]  ? find_held_lock+0x36/0x1c0
[  271.382379]  ? handle_mm_fault+0x42a/0xc70
[  271.386615]  ? lock_downgrade+0x900/0x900
[  271.390775]  ? check_preemption_disabled+0x48/0x280
[  271.395802]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  271.400734]  ? kasan_check_read+0x11/0x20
[  271.404893]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.410173]  ? rcu_softirq_qs+0x20/0x20
[  271.414149]  ? trace_hardirqs_off_caller+0x310/0x310
[  271.419323]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.424866]  ? check_preemption_disabled+0x48/0x280
[  271.429921]  handle_mm_fault+0x54f/0xc70
[  271.434005]  ? __handle_mm_fault+0x5be0/0x5be0
[  271.438597]  ? find_vma+0x34/0x190
[  271.442145]  __do_page_fault+0x5e8/0xe60
[  271.446205]  ? trace_hardirqs_off+0xb8/0x310
[  271.450626]  do_page_fault+0xf2/0x7e0
[  271.454428]  ? vmalloc_sync_all+0x30/0x30
[  271.458586]  ? error_entry+0x70/0xd0
[  271.462301]  ? trace_hardirqs_off_caller+0xbb/0x310
[  271.467319]  ? trace_hardirqs_on_caller+0xc0/0x310
[  271.472253]  ? syscall_return_slowpath+0x5e0/0x5e0
[  271.477194]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.482043]  ? trace_hardirqs_on_caller+0x310/0x310
[  271.487058]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  271.492519]  ? prepare_exit_to_usermode+0x291/0x3b0
[  271.497536]  ? page_fault+0x8/0x30
[  271.501080]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  271.505942]  ? page_fault+0x8/0x30
[  271.509499]  page_fault+0x1e/0x30
[  271.512965] RIP: 0033:0x404068
[  271.516186] Code: Bad RIP value.
[  271.519548] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  271.524911] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  271.532217] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  271.539506] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  271.546780] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  271.554051] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  271.561335] warn_alloc_show_mem: 1 callbacks suppressed
[  271.561347] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  271.561348] Mem-Info:
[  271.561393] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  271.561393]  active_file:13 inactive_file:28 isolated_file:0
[  271.561393]  unevictable:0 dirty:1 writeback:0 unstable:0
[  271.561393]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  271.561393]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  271.561393]  free:13541 free_pcp:161 free_cma:0
[  271.566764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  271.574037] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  271.576433] Call Trace:
[  271.609473] 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
[  271.618819]  <IRQ>
[  271.646732] lowmem_reserve[]: 0 2818 6321 6321
[  271.649327]  dump_stack+0x244/0x39d
[  271.675405] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  271.677568]  ? dump_stack_print_info.cold.1+0x20/0x20
[  271.682127] lowmem_reserve[]: 0 0 3503 3503
[  271.685774]  warn_alloc.cold.116+0xb7/0x1bd
[  271.713326] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  271.718523]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  271.722817] lowmem_reserve[]: 0 0 0 0
[  271.727137]  ? lock_downgrade+0x900/0x900
[  271.756270] 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
[  271.761104]  ? trace_hardirqs_off+0xb8/0x310
[  271.764878] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  271.769026]  ? trace_hardirqs_off+0xb8/0x310
[  271.782526] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  271.786933]  __alloc_pages_slowpath+0x26e8/0x2e10
[  271.802098] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  271.806512]  ? warn_alloc+0x120/0x120
[  271.821168] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  271.821178] 4984 total pagecache pages
[  271.826020]  ? print_usage_bug+0xc0/0xc0
[  271.834837] 0 pages in swap cache
[  271.838623]  ? warn_alloc+0x120/0x120
[  271.847178] Swap cache stats: add 0, delete 0, find 0/0
[  271.851059]  ? warn_alloc+0x120/0x120
[  271.855095] Free swap  = 0kB
[  271.858539]  ? print_usage_bug+0xc0/0xc0
[  271.862320] Total swap = 0kB
[  271.867678]  ? kvm_clock_read+0x18/0x30
[  271.871482] 1965979 pages RAM
[  271.874494]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  271.878528] 0 pages HighMem/MovableOnly
[  271.881538]  ? print_usage_bug+0xc0/0xc0
[  271.885489] 342853 pages reserved
[  271.888594]  ? __lock_acquire+0x62f/0x4c20
[  271.893586] 0 pages cma reserved
[  271.897583]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  271.901690] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  271.905073]  ? should_fail+0x22d/0xd01
[  271.909344] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  271.912645]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  271.918157] syz-fuzzer cpuset=/ mems_allowed=0
[  271.924643]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  271.953639]  ? __lock_acquire+0x62f/0x4c20
[  271.957882]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  271.962988]  ? __lock_acquire+0x62f/0x4c20
[  271.967221]  ? should_fail+0x22d/0xd01
[  271.971140]  ? rcu_irq_exit+0x1a2/0x390
[  271.975129]  ? mark_held_locks+0x130/0x130
[  271.979368]  ? mark_held_locks+0x130/0x130
[  271.983612]  ? mark_held_locks+0xc7/0x130
[  271.987777]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  271.992800]  ? zap_class+0x640/0x640
[  271.996513]  ? print_usage_bug+0xc0/0xc0
[  272.000582]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.006120]  ? check_preemption_disabled+0x48/0x280
[  272.011152]  ? __lock_is_held+0xb5/0x140
[  272.015224]  __alloc_pages_nodemask+0xa80/0xde0
[  272.019895]  ? zap_class+0x640/0x640
[  272.023617]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  272.028761]  ? find_held_lock+0x36/0x1c0
[  272.032840]  ? ____cache_alloc_node+0x1c7/0x1e0
[  272.037515]  ? lock_downgrade+0x900/0x900
[  272.041671]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.047215]  cache_grow_begin+0xa5/0x8c0
[  272.051286]  ? do_raw_spin_unlock+0xa7/0x330
[  272.055705]  fallback_alloc+0x204/0x2e0
[  272.059689]  ____cache_alloc_node+0x1c7/0x1e0
[  272.064211]  kmem_cache_alloc_node+0xe3/0x730
[  272.068741]  ? ipv6_get_ifaddr+0x42e/0x620
[  272.073003]  __alloc_skb+0x119/0x770
[  272.076720]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.082011]  ? netdev_alloc_frag+0x1f0/0x1f0
[  272.086440]  ? lock_downgrade+0x900/0x900
[  272.090617]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.096156]  ? refcount_sub_and_test_checked+0x203/0x310
[  272.101617]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  272.107069]  ? addrconf_rs_timer+0x690/0x690
[  272.111498]  ndisc_alloc_skb+0x144/0x340
[  272.115566]  ndisc_send_rs+0x331/0x6e0
[  272.119463]  addrconf_rs_timer+0x314/0x690
[  272.123708]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.127956]  call_timer_fn+0x272/0x920
[  272.131849]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.136088]  ? process_timeout+0x40/0x40
[  272.140156]  ? __run_timers+0x7da/0xc70
[  272.144132]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.148630]  ? _raw_spin_unlock_irq+0x27/0x80
[  272.153125]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.157366]  ? lockdep_hardirqs_on+0x296/0x5b0
[  272.161949]  ? trace_hardirqs_on+0xbd/0x310
[  272.166276]  ? kasan_check_read+0x11/0x20
[  272.170424]  ? __run_timers+0x7da/0xc70
[  272.174403]  ? trace_hardirqs_off_caller+0x310/0x310
[  272.179516]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.183772]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  272.188009]  __run_timers+0x7e5/0xc70
[  272.191823]  ? timer_fixup_init+0x70/0x70
[  272.195976]  ? kasan_check_read+0x11/0x20
[  272.200130]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.205422]  ? rcu_softirq_qs+0x20/0x20
[  272.209415]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.214961]  ? check_preemption_disabled+0x48/0x280
[  272.219984]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  272.224762]  ? retint_kernel+0x2d/0x2d
[  272.228652]  ? trace_hardirqs_on_caller+0xc0/0x310
[  272.233584]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  272.238359]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  272.243825]  ? zap_class+0x640/0x640
[  272.247547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.253087]  ? check_preemption_disabled+0x48/0x280
[  272.258114]  ? __lock_is_held+0xb5/0x140
[  272.262178]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.267719]  ? check_preemption_disabled+0x48/0x280
[  272.272773]  run_timer_softirq+0x52/0xb0
[  272.276842]  ? rcu_read_lock_sched_held+0x14f/0x180
[  272.281860]  __do_softirq+0x308/0xb7e
[  272.285665]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  272.290161]  ? lock_downgrade+0x900/0x900
[  272.294318]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  272.299430]  ? pvclock_read_flags+0x160/0x160
[  272.303934]  ? lapic_next_event+0x5a/0x90
[  272.308262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.313817]  ? kvm_clock_read+0x18/0x30
[  272.317796]  ? kvm_sched_clock_read+0x9/0x20
[  272.322212]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.327767]  ? check_preemption_disabled+0x48/0x280
[  272.332799]  irq_exit+0x17f/0x1c0
[  272.336254]  smp_apic_timer_interrupt+0x1cb/0x760
[  272.341097]  ? smp_reschedule_interrupt+0x109/0x650
[  272.346117]  ? smp_call_function_single_interrupt+0x650/0x650
[  272.352006]  ? interrupt_entry+0xb5/0xc0
[  272.356069]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.361087]  ? trace_hardirqs_off_caller+0xbb/0x310
[  272.366108]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.370963]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.375985]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.381003]  ? task_prio+0x50/0x50
[  272.384559]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.390099]  ? check_preemption_disabled+0x48/0x280
[  272.395122]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.399977]  apic_timer_interrupt+0xf/0x20
[  272.404207]  </IRQ>
[  272.406448] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  272.411384] 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
[  272.430299] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  272.438010] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  272.445278] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  272.452546] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  272.459813] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  272.467079] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  272.474386]  skb_clone+0x1bb/0x500
[  272.477933]  ? skb_split+0x11e0/0x11e0
[  272.481831]  ? preempt_notifier_register+0x200/0x200
[  272.486934]  ? __switch_to_asm+0x34/0x70
[  272.490996]  ? __switch_to_asm+0x34/0x70
[  272.495054]  ? __switch_to_asm+0x40/0x70
[  272.499117]  ? __switch_to_asm+0x34/0x70
[  272.503175]  ? __switch_to_asm+0x40/0x70
[  272.507237]  ? __switch_to_asm+0x40/0x70
[  272.511294]  ? __switch_to_asm+0x34/0x70
[  272.515351]  ? __switch_to_asm+0x34/0x70
[  272.519452]  ? __switch_to_asm+0x40/0x70
[  272.523511]  ? __switch_to_asm+0x34/0x70
[  272.527600]  bpf_clone_redirect+0xb9/0x490
[  272.531845]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  272.536864]  ? __sched_text_start+0x8/0x8
[  272.541018]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  272.545794]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  272.550556]  ? find_held_lock+0x36/0x1c0
[  272.554629]  ? lock_acquire+0x1ed/0x520
[  272.558608]  ? bpf_test_run+0x3cb/0x780
[  272.562587]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.568125]  ? check_preemption_disabled+0x48/0x280
[  272.573154]  ? kasan_check_read+0x11/0x20
[  272.577299]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.582573]  ? rcu_softirq_qs+0x20/0x20
[  272.586551]  ? preempt_schedule+0x4d/0x60
[  272.590699]  ? ___preempt_schedule+0x16/0x18
[  272.595114]  ? bpf_test_run+0x25d/0x780
[  272.599105]  ? netlink_diag_dump+0x2a0/0x2a0
[  272.603517]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.609054]  ? bpf_test_init.isra.10+0x70/0x100
[  272.613734]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  272.618518]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  272.623357]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  272.628913]  ? fput+0x130/0x1a0
[  272.632193]  ? __bpf_prog_get+0x9b/0x290
[  272.636257]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  272.641100]  ? bpf_prog_test_run+0x130/0x1a0
[  272.645511]  ? __x64_sys_bpf+0x3d8/0x520
[  272.649573]  ? bpf_prog_get+0x20/0x20
[  272.653419]  ? do_syscall_64+0x1b9/0x820
[  272.657489]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  272.662869]  ? syscall_return_slowpath+0x5e0/0x5e0
[  272.667852]  ? trace_hardirqs_on_caller+0x310/0x310
[  272.672874]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  272.677898]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  272.684563]  ? __switch_to_asm+0x40/0x70
[  272.688618]  ? __switch_to_asm+0x34/0x70
[  272.692684]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  272.697544]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  272.702946] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  272.703014] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  272.709876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  272.709881] Call Trace:
[  272.709888]  <IRQ>
[  272.709905]  dump_stack+0x244/0x39d
[  272.709924]  ? dump_stack_print_info.cold.1+0x20/0x20
[  272.716471] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  272.725782]  warn_alloc.cold.116+0xb7/0x1bd
[  272.728343] syz-executor4 cpuset=syz4 mems_allowed=0
[  272.730517]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  272.764018]  ? lock_downgrade+0x900/0x900
[  272.768178]  ? trace_hardirqs_off+0xb8/0x310
[  272.772591]  ? trace_hardirqs_off+0xb8/0x310
[  272.777009]  __alloc_pages_slowpath+0x26e8/0x2e10
[  272.781885]  ? warn_alloc+0x120/0x120
[  272.785695]  ? print_usage_bug+0xc0/0xc0
[  272.789764]  ? warn_alloc+0x120/0x120
[  272.793577]  ? warn_alloc+0x120/0x120
[  272.797380]  ? print_usage_bug+0xc0/0xc0
[  272.801446]  ? print_usage_bug+0xc0/0xc0
[  272.805538]  ? __lock_acquire+0x62f/0x4c20
[  272.809787]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  272.815326]  ? should_fail+0x22d/0xd01
[  272.819219]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.824324]  ? __lock_acquire+0x62f/0x4c20
[  272.828564]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  272.833670]  ? __lock_acquire+0x62f/0x4c20
[  272.837904]  ? should_fail+0x22d/0xd01
[  272.841821]  ? find_held_lock+0x36/0x1c0
[  272.845892]  ? mark_held_locks+0x130/0x130
[  272.850133]  ? mark_held_locks+0x130/0x130
[  272.854366]  ? zap_class+0x640/0x640
[  272.858086]  ? zap_class+0x640/0x640
[  272.861819]  ? print_usage_bug+0xc0/0xc0
[  272.865882]  ? do_raw_spin_unlock+0xa7/0x330
[  272.870294]  ? zap_class+0x640/0x640
[  272.874011]  ? print_usage_bug+0xc0/0xc0
[  272.878072]  ? wq_watchdog_touch+0x9c/0xfe
[  272.882315]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.887858]  ? check_preemption_disabled+0x48/0x280
[  272.892889]  ? __lock_is_held+0xb5/0x140
[  272.896958]  __alloc_pages_nodemask+0xa80/0xde0
[  272.901629]  ? zap_class+0x640/0x640
[  272.905351]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  272.910380]  ? find_held_lock+0x36/0x1c0
[  272.914458]  ? ____cache_alloc_node+0x1c7/0x1e0
[  272.919130]  ? lock_downgrade+0x900/0x900
[  272.923294]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.928841]  cache_grow_begin+0xa5/0x8c0
[  272.932905]  ? do_raw_spin_unlock+0xa7/0x330
[  272.937324]  fallback_alloc+0x204/0x2e0
[  272.941306]  ____cache_alloc_node+0x1c7/0x1e0
[  272.946307]  kmem_cache_alloc_node+0xe3/0x730
[  272.950805]  ? ipv6_get_ifaddr+0x42e/0x620
[  272.955050]  __alloc_skb+0x119/0x770
[  272.958772]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  272.964056]  ? netdev_alloc_frag+0x1f0/0x1f0
[  272.968466]  ? lock_downgrade+0x900/0x900
[  272.972624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  272.978161]  ? refcount_sub_and_test_checked+0x203/0x310
[  272.983615]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  272.989068]  ? addrconf_rs_timer+0x690/0x690
[  272.993490]  ndisc_alloc_skb+0x144/0x340
[  272.997563]  ndisc_send_rs+0x331/0x6e0
[  273.001462]  addrconf_rs_timer+0x314/0x690
[  273.005704]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.009952]  call_timer_fn+0x272/0x920
[  273.013841]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.018080]  ? process_timeout+0x40/0x40
[  273.022152]  ? mark_held_locks+0xc7/0x130
[  273.026308]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.030831]  ? _raw_spin_unlock_irq+0x27/0x80
[  273.035340]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.039577]  ? lockdep_hardirqs_on+0x296/0x5b0
[  273.044208]  ? trace_hardirqs_on+0xbd/0x310
[  273.048563]  ? kasan_check_read+0x11/0x20
[  273.052714]  ? __run_timers+0x7da/0xc70
[  273.056700]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.061814]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.066058]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  273.070296]  __run_timers+0x7e5/0xc70
[  273.074118]  ? timer_fixup_init+0x70/0x70
[  273.078271]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  273.083291]  ? zap_class+0x640/0x640
[  273.087010]  ? print_usage_bug+0xc0/0xc0
[  273.091083]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  273.096289]  ? find_held_lock+0x36/0x1c0
[  273.100356]  ? zap_class+0x640/0x640
[  273.104077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.109617]  ? check_preemption_disabled+0x48/0x280
[  273.114642]  ? __lock_is_held+0xb5/0x140
[  273.118710]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.124289]  ? check_preemption_disabled+0x48/0x280
[  273.129325]  run_timer_softirq+0x52/0xb0
[  273.133392]  ? rcu_read_lock_sched_held+0x14f/0x180
[  273.138412]  __do_softirq+0x308/0xb7e
[  273.142216]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  273.146711]  ? lock_downgrade+0x900/0x900
[  273.150873]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  273.155992]  ? pvclock_read_flags+0x160/0x160
[  273.160518]  ? lapic_next_event+0x5a/0x90
[  273.164669]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.170217]  ? kvm_clock_read+0x18/0x30
[  273.174190]  ? kvm_sched_clock_read+0x9/0x20
[  273.178602]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.184146]  ? check_preemption_disabled+0x48/0x280
[  273.189175]  irq_exit+0x17f/0x1c0
[  273.192631]  smp_apic_timer_interrupt+0x1cb/0x760
[  273.197486]  ? smp_reschedule_interrupt+0x109/0x650
[  273.202506]  ? smp_call_function_single_interrupt+0x650/0x650
[  273.208393]  ? interrupt_entry+0xb5/0xc0
[  273.212458]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.217478]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.222505]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.227350]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.232368]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.237388]  ? task_prio+0x50/0x50
[  273.240932]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.246477]  ? check_preemption_disabled+0x48/0x280
[  273.251504]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.256357]  apic_timer_interrupt+0xf/0x20
[  273.260586]  </IRQ>
[  273.262833] RIP: 0010:check_memory_region+0x121/0x1b0
[  273.268030] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  273.286932] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  273.294638] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  273.302429] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  273.309698] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  273.316966] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  273.324234] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  273.331524]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.336821]  kasan_check_read+0x11/0x20
[  273.340799]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.345906]  ? rcu_softirq_qs+0x20/0x20
[  273.349890]  rcu_is_watching+0x10/0x30
[  273.353785]  list_lru_count_one+0x362/0x450
[  273.358109]  ? list_lru_isolate_move+0x3c0/0x3c0
[  273.362866]  ? shmem_free_inode+0xd0/0xd0
[  273.367019]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.372558]  ? ubifs_shrink_count+0xc4/0x100
[  273.376975]  super_cache_count+0x153/0x2e0
[  273.381219]  do_shrink_slab+0x1b1/0xd30
[  273.385210]  ? lock_acquire+0x1ed/0x520
[  273.389191]  ? snapshot_refaults+0x290/0x290
[  273.393605]  ? lock_release+0xa00/0xa00
[  273.397589]  ? perf_trace_sched_process_exec+0x860/0x860
[  273.403052]  ? down_read_trylock+0xda/0x140
[  273.407379]  ? shrink_slab+0x207/0x8c0
[  273.411277]  ? downgrade_write+0x270/0x270
[  273.415527]  shrink_slab+0x389/0x8c0
[  273.419241]  ? shrink_active_list+0x1f00/0x1f00
[  273.423922]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  273.429553]  ? kasan_check_read+0x11/0x20
[  273.433699]  ? do_raw_spin_unlock+0xa7/0x330
[  273.438120]  ? ___preempt_schedule+0x16/0x18
[  273.442539]  ? _raw_spin_unlock+0x3f/0x50
[  273.446702]  shrink_node+0x431/0x16b0
[  273.450506]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  273.455810]  ? shrink_node_memcg+0x18f0/0x18f0
[  273.460403]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  273.464994]  ? trace_hardirqs_on+0xbd/0x310
[  273.469326]  ? vmpressure+0x271/0x340
[  273.473132]  ? do_raw_spin_trylock+0x270/0x270
[  273.477724]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  273.483284]  ? __cpuset_node_allowed+0x19b/0x660
[  273.488048]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  273.493771]  ? vmpressure+0x1a2/0x340
[  273.497583]  do_try_to_free_pages+0x3e7/0x1290
[  273.502170]  ? zap_class+0x640/0x640
[  273.505901]  ? shrink_node+0x16b0/0x16b0
[  273.509969]  ? __lock_is_held+0xb5/0x140
[  273.514047]  try_to_free_pages+0x4d0/0xb90
[  273.518293]  ? do_try_to_free_pages+0x1290/0x1290
[  273.523156]  ? lock_acquire+0x1ed/0x520
[  273.527131]  ? set_page_refcounted+0x280/0x280
[  273.531720]  ? lock_release+0xa00/0xa00
[  273.535706]  ? _raw_spin_unlock_irq+0x60/0x80
[  273.540207]  ? psi_memstall_enter+0x240/0x2b0
[  273.544709]  ? psi_memstall_tick+0x230/0x230
[  273.549130]  __alloc_pages_slowpath+0xa14/0x2e10
[  273.553920]  ? warn_alloc+0x120/0x120
[  273.557722]  ? mark_held_locks+0x130/0x130
[  273.561972]  ? find_get_entry+0xaae/0x1120
[  273.566217]  ? filemap_map_pages+0x1a20/0x1a20
[  273.570810]  ? zap_class+0x640/0x640
[  273.574531]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  273.580081]  ? check_preemption_disabled+0x48/0x280
[  273.585102]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.590672]  ? should_fail+0x22d/0xd01
[  273.594564]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  273.599673]  ? zap_class+0x640/0x640
[  273.603429]  ? __lock_is_held+0xb5/0x140
[  273.607514]  ? mark_held_locks+0x130/0x130
[  273.611761]  ? lock_release+0xa00/0xa00
[  273.615743]  ? perf_trace_sched_process_exec+0x860/0x860
[  273.621204]  ? xa_load+0x2ba/0x460
[  273.624754]  ? lock_downgrade+0x900/0x900
[  273.628915]  ? __might_sleep+0x95/0x190
[  273.632894]  __alloc_pages_nodemask+0xa80/0xde0
[  273.637570]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  273.642592]  ? __page_cache_alloc+0x191/0x5c0
[  273.647090]  ? xa_load+0x2e1/0x460
[  273.650635]  ? xa_clear_mark+0x40/0x40
[  273.654529]  ? zap_class+0x640/0x640
[  273.658260]  ? zap_class+0x640/0x640
[  273.661977]  ? zap_class+0x640/0x640
[  273.665697]  ? __do_page_cache_readahead+0x663/0x810
[  273.670806]  ? find_held_lock+0x36/0x1c0
[  273.674871]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  273.680417]  alloc_pages_current+0x173/0x350
[  273.684879]  __page_cache_alloc+0x38c/0x5c0
[  273.689199]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.694129]  ? kasan_check_read+0x11/0x20
[  273.698281]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.703562]  ? generic_perform_write+0x6a0/0x6a0
[  273.708337]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.713891]  ? check_preemption_disabled+0x48/0x280
[  273.718915]  filemap_fault+0x1595/0x25f0
[  273.722989]  ? __lock_page_or_retry+0xa00/0xa00
[  273.727664]  ? mark_held_locks+0x130/0x130
[  273.731908]  ? filemap_map_pages+0xd6b/0x1a20
[  273.736410]  ? lock_downgrade+0x900/0x900
[  273.740567]  ? check_preemption_disabled+0x48/0x280
[  273.745601]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.750535]  ? kasan_check_read+0x11/0x20
[  273.754684]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.759980]  ? rcu_softirq_qs+0x20/0x20
[  273.763981]  ? filemap_map_pages+0xd92/0x1a20
[  273.768489]  ? find_get_entries_tag+0x1400/0x1400
[  273.773332]  ? find_held_lock+0x36/0x1c0
[  273.777418]  ? lock_acquire+0x1ed/0x520
[  273.781397]  ? ext4_filemap_fault+0x7a/0xad
[  273.785725]  ? lock_release+0xa00/0xa00
[  273.789704]  ? perf_trace_sched_process_exec+0x860/0x860
[  273.795174]  ? print_usage_bug+0xc0/0xc0
[  273.799268]  ? down_read+0x8d/0x120
[  273.802912]  ? ext4_filemap_fault+0x7a/0xad
[  273.807260]  ? __down_interruptible+0x700/0x700
[  273.811934]  ? find_held_lock+0x36/0x1c0
[  273.816166]  ext4_filemap_fault+0x82/0xad
[  273.820335]  __do_fault+0x100/0x6b0
[  273.823964]  ? lock_downgrade+0x900/0x900
[  273.828115]  ? pmd_devmap_trans_unstable+0x220/0x220
[  273.833226]  ? kasan_check_read+0x11/0x20
[  273.837389]  ? do_raw_spin_unlock+0xa7/0x330
[  273.841824]  ? do_raw_spin_trylock+0x270/0x270
[  273.846421]  __handle_mm_fault+0x3ea0/0x5be0
[  273.850845]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  273.855703]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  273.860309]  ? zap_class+0x640/0x640
[  273.864025]  ? zap_class+0x640/0x640
[  273.867738]  ? __x64_sys_futex+0x53e/0x6a0
[  273.871990]  ? find_held_lock+0x36/0x1c0
[  273.876065]  ? handle_mm_fault+0x42a/0xc70
[  273.880307]  ? lock_downgrade+0x900/0x900
[  273.884455]  ? check_preemption_disabled+0x48/0x280
[  273.889494]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  273.894424]  ? kasan_check_read+0x11/0x20
[  273.898577]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  273.903873]  ? rcu_softirq_qs+0x20/0x20
[  273.907847]  ? trace_hardirqs_off_caller+0x310/0x310
[  273.912955]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  273.918495]  ? check_preemption_disabled+0x48/0x280
[  273.923538]  handle_mm_fault+0x54f/0xc70
[  273.927623]  ? __handle_mm_fault+0x5be0/0x5be0
[  273.932214]  ? find_vma+0x34/0x190
[  273.935769]  __do_page_fault+0x5e8/0xe60
[  273.939831]  ? trace_hardirqs_off+0xb8/0x310
[  273.944253]  do_page_fault+0xf2/0x7e0
[  273.948061]  ? vmalloc_sync_all+0x30/0x30
[  273.952211]  ? error_entry+0x70/0xd0
[  273.955928]  ? trace_hardirqs_off_caller+0xbb/0x310
[  273.960948]  ? trace_hardirqs_on_caller+0xc0/0x310
[  273.965883]  ? syscall_return_slowpath+0x5e0/0x5e0
[  273.970812]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.975654]  ? trace_hardirqs_on_caller+0x310/0x310
[  273.980701]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  273.986159]  ? prepare_exit_to_usermode+0x291/0x3b0
[  273.991203]  ? page_fault+0x8/0x30
[  273.994767]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  273.999609]  ? page_fault+0x8/0x30
[  274.003146]  page_fault+0x1e/0x30
[  274.006599] RIP: 0033:0x404068
[  274.009809] Code: Bad RIP value.
[  274.013175] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  274.018535] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  274.025828] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  274.033100] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  274.040372] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  274.047640] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  274.054928] warn_alloc_show_mem: 1 callbacks suppressed
[  274.054941] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  274.054942] Mem-Info:
[  274.054973] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  274.054973]  active_file:13 inactive_file:28 isolated_file:0
[  274.054973]  unevictable:0 dirty:1 writeback:0 unstable:0
[  274.054973]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  274.054973]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  274.054973]  free:13541 free_pcp:161 free_cma:0
[  274.060314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  274.067596] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  274.069992] Call Trace:
[  274.103027] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  274.112370]  <IRQ>
[  274.140290] lowmem_reserve[]: 0 2818 6321 6321
[  274.142881]  dump_stack+0x244/0x39d
[  274.168961] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  274.171106]  ? dump_stack_print_info.cold.1+0x20/0x20
[  274.175662] lowmem_reserve[]: 0 0 3503 3503
[  274.179293]  warn_alloc.cold.116+0xb7/0x1bd
[  274.206847] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  274.212040]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  274.216335] lowmem_reserve[]: 0 0 0 0
[  274.220652]  ? lock_downgrade+0x900/0x900
[  274.249773] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  274.254619]  ? trace_hardirqs_off+0xb8/0x310
[  274.258390] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  274.262541]  ? trace_hardirqs_off+0xb8/0x310
[  274.276039] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  274.280451]  __alloc_pages_slowpath+0x26e8/0x2e10
[  274.295603] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  274.300023]  ? warn_alloc+0x120/0x120
[  274.314463] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  274.319312]  ? print_usage_bug+0xc0/0xc0
[  274.328124] 4984 total pagecache pages
[  274.331917]  ? warn_alloc+0x120/0x120
[  274.340479] 0 pages in swap cache
[  274.344529]  ? warn_alloc+0x120/0x120
[  274.348396] Swap cache stats: add 0, delete 0, find 0/0
[  274.352189]  ? print_usage_bug+0xc0/0xc0
[  274.355618] Free swap  = 0kB
[  274.359415]  ? print_usage_bug+0xc0/0xc0
[  274.364768] Total swap = 0kB
[  274.368830]  ? __lock_acquire+0x62f/0x4c20
[  274.371842] 1965979 pages RAM
[  274.375900]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.378892] 0 pages HighMem/MovableOnly
[  274.383123]  ? should_fail+0x22d/0xd01
[  274.386202] 342853 pages reserved
[  274.391730]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.395686] 0 pages cma reserved
[  274.399567]  ? __lock_acquire+0x62f/0x4c20
[  274.403062] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  274.408094]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  274.411527] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  274.415693]  ? __lock_acquire+0x62f/0x4c20
[  274.415710]  ? should_fail+0x22d/0xd01
[  274.422186] syz-fuzzer cpuset=/ mems_allowed=0
[  274.427282]  ? find_held_lock+0x36/0x1c0
[  274.454237]  ? mark_held_locks+0x130/0x130
[  274.458493]  ? mark_held_locks+0x130/0x130
[  274.462755]  ? zap_class+0x640/0x640
[  274.466490]  ? zap_class+0x640/0x640
[  274.470207]  ? print_usage_bug+0xc0/0xc0
[  274.474267]  ? do_raw_spin_unlock+0xa7/0x330
[  274.478704]  ? zap_class+0x640/0x640
[  274.482419]  ? print_usage_bug+0xc0/0xc0
[  274.486480]  ? wq_watchdog_touch+0x9c/0xfe
[  274.490720]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.496283]  ? check_preemption_disabled+0x48/0x280
[  274.501313]  ? __lock_is_held+0xb5/0x140
[  274.505384]  __alloc_pages_nodemask+0xa80/0xde0
[  274.510055]  ? zap_class+0x640/0x640
[  274.513787]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  274.518819]  ? find_held_lock+0x36/0x1c0
[  274.522895]  ? ____cache_alloc_node+0x1c7/0x1e0
[  274.527568]  ? lock_downgrade+0x900/0x900
[  274.531733]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.537288]  cache_grow_begin+0xa5/0x8c0
[  274.541350]  ? do_raw_spin_unlock+0xa7/0x330
[  274.545794]  fallback_alloc+0x204/0x2e0
[  274.549788]  ____cache_alloc_node+0x1c7/0x1e0
[  274.554292]  kmem_cache_alloc_node+0xe3/0x730
[  274.558816]  ? ipv6_get_ifaddr+0x42e/0x620
[  274.563067]  __alloc_skb+0x119/0x770
[  274.566801]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.572087]  ? netdev_alloc_frag+0x1f0/0x1f0
[  274.576497]  ? lock_downgrade+0x900/0x900
[  274.580660]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.586213]  ? refcount_sub_and_test_checked+0x203/0x310
[  274.591669]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  274.597121]  ? addrconf_rs_timer+0x690/0x690
[  274.601543]  ndisc_alloc_skb+0x144/0x340
[  274.605642]  ndisc_send_rs+0x331/0x6e0
[  274.609560]  addrconf_rs_timer+0x314/0x690
[  274.613813]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.618060]  call_timer_fn+0x272/0x920
[  274.621947]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.626200]  ? process_timeout+0x40/0x40
[  274.630267]  ? __run_timers+0x7da/0xc70
[  274.634250]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.638761]  ? _raw_spin_unlock_irq+0x27/0x80
[  274.643259]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.647495]  ? lockdep_hardirqs_on+0x296/0x5b0
[  274.652080]  ? trace_hardirqs_on+0xbd/0x310
[  274.656431]  ? kasan_check_read+0x11/0x20
[  274.660577]  ? __run_timers+0x7da/0xc70
[  274.664558]  ? trace_hardirqs_off_caller+0x310/0x310
[  274.669667]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.673908]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  274.678145]  __run_timers+0x7e5/0xc70
[  274.681960]  ? timer_fixup_init+0x70/0x70
[  274.686130]  ? kasan_check_read+0x11/0x20
[  274.690291]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  274.695573]  ? rcu_softirq_qs+0x20/0x20
[  274.699551]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.705096]  ? check_preemption_disabled+0x48/0x280
[  274.710149]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  274.714913]  ? retint_kernel+0x2d/0x2d
[  274.718806]  ? trace_hardirqs_on_caller+0xc0/0x310
[  274.723736]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  274.728507]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  274.733959]  ? zap_class+0x640/0x640
[  274.737680]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.743220]  ? check_preemption_disabled+0x48/0x280
[  274.748249]  ? __lock_is_held+0xb5/0x140
[  274.752341]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.757879]  ? check_preemption_disabled+0x48/0x280
[  274.762903]  run_timer_softirq+0x52/0xb0
[  274.766972]  ? rcu_read_lock_sched_held+0x14f/0x180
[  274.771987]  __do_softirq+0x308/0xb7e
[  274.775834]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  274.780350]  ? lock_downgrade+0x900/0x900
[  274.784535]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  274.789672]  ? pvclock_read_flags+0x160/0x160
[  274.794185]  ? lapic_next_event+0x5a/0x90
[  274.798338]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.803888]  ? kvm_clock_read+0x18/0x30
[  274.807865]  ? kvm_sched_clock_read+0x9/0x20
[  274.812276]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  274.817835]  ? check_preemption_disabled+0x48/0x280
[  274.822860]  irq_exit+0x17f/0x1c0
[  274.826320]  smp_apic_timer_interrupt+0x1cb/0x760
[  274.831161]  ? smp_reschedule_interrupt+0x109/0x650
[  274.836195]  ? smp_call_function_single_interrupt+0x650/0x650
[  274.842078]  ? interrupt_entry+0xb5/0xc0
[  274.846173]  ? trace_hardirqs_off_caller+0xbb/0x310
[  274.851192]  ? trace_hardirqs_off_caller+0xbb/0x310
[  274.856210]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.861054]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.866071]  ? trace_hardirqs_on_caller+0x310/0x310
[  274.871088]  ? task_prio+0x50/0x50
[  274.874629]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  274.880170]  ? check_preemption_disabled+0x48/0x280
[  274.885191]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  274.890042]  apic_timer_interrupt+0xf/0x20
[  274.894270]  </IRQ>
[  274.896527] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  274.901460] 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
[  274.920357] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  274.928063] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  274.935328] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  274.942608] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  274.950045] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  274.957338] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  274.964647]  skb_clone+0x1bb/0x500
[  274.968194]  ? skb_split+0x11e0/0x11e0
[  274.972098]  ? preempt_notifier_register+0x200/0x200
[  274.977204]  ? __switch_to_asm+0x34/0x70
[  274.981265]  ? __switch_to_asm+0x34/0x70
[  274.985341]  ? __switch_to_asm+0x40/0x70
[  274.989398]  ? __switch_to_asm+0x34/0x70
[  274.993455]  ? __switch_to_asm+0x40/0x70
[  274.997512]  ? __switch_to_asm+0x40/0x70
[  275.001571]  ? __switch_to_asm+0x34/0x70
[  275.005633]  ? __switch_to_asm+0x34/0x70
[  275.009695]  ? __switch_to_asm+0x40/0x70
[  275.013767]  ? __switch_to_asm+0x34/0x70
[  275.017836]  bpf_clone_redirect+0xb9/0x490
[  275.022082]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  275.027116]  ? __sched_text_start+0x8/0x8
[  275.031264]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  275.036030]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  275.040796]  ? find_held_lock+0x36/0x1c0
[  275.044872]  ? lock_acquire+0x1ed/0x520
[  275.048853]  ? bpf_test_run+0x3cb/0x780
[  275.052832]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.058372]  ? check_preemption_disabled+0x48/0x280
[  275.063397]  ? kasan_check_read+0x11/0x20
[  275.067560]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.072832]  ? rcu_softirq_qs+0x20/0x20
[  275.076808]  ? preempt_schedule+0x4d/0x60
[  275.080962]  ? ___preempt_schedule+0x16/0x18
[  275.085380]  ? bpf_test_run+0x25d/0x780
[  275.089368]  ? netlink_diag_dump+0x2a0/0x2a0
[  275.093790]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.099348]  ? bpf_test_init.isra.10+0x70/0x100
[  275.104020]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  275.108808]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  275.113649]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  275.119185]  ? fput+0x130/0x1a0
[  275.122497]  ? __bpf_prog_get+0x9b/0x290
[  275.126577]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  275.131418]  ? bpf_prog_test_run+0x130/0x1a0
[  275.135848]  ? __x64_sys_bpf+0x3d8/0x520
[  275.139914]  ? bpf_prog_get+0x20/0x20
[  275.143736]  ? do_syscall_64+0x1b9/0x820
[  275.147812]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  275.153190]  ? syscall_return_slowpath+0x5e0/0x5e0
[  275.158151]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.163165]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  275.168200]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  275.174869]  ? __switch_to_asm+0x40/0x70
[  275.178950]  ? __switch_to_asm+0x34/0x70
[  275.183032]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.187888]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  275.193272] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  275.193381] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  275.200216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  275.200221] Call Trace:
[  275.200228]  <IRQ>
[  275.200245]  dump_stack+0x244/0x39d
[  275.200270]  ? dump_stack_print_info.cold.1+0x20/0x20
[  275.206820] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  275.216112]  warn_alloc.cold.116+0xb7/0x1bd
[  275.218671] syz-executor4 cpuset=syz4 mems_allowed=0
[  275.220819]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  275.254301]  ? lock_downgrade+0x900/0x900
[  275.258456]  ? trace_hardirqs_off+0xb8/0x310
[  275.262876]  ? trace_hardirqs_off+0xb8/0x310
[  275.267309]  __alloc_pages_slowpath+0x26e8/0x2e10
[  275.272179]  ? warn_alloc+0x120/0x120
[  275.275985]  ? print_usage_bug+0xc0/0xc0
[  275.280051]  ? warn_alloc+0x120/0x120
[  275.283875]  ? warn_alloc+0x120/0x120
[  275.287683]  ? print_usage_bug+0xc0/0xc0
[  275.291756]  ? kvm_clock_read+0x18/0x30
[  275.295731]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  275.300767]  ? print_usage_bug+0xc0/0xc0
[  275.304846]  ? __lock_acquire+0x62f/0x4c20
[  275.309093]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.314631]  ? should_fail+0x22d/0xd01
[  275.318523]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.323809]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  275.328913]  ? __lock_acquire+0x62f/0x4c20
[  275.333152]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  275.338255]  ? __lock_acquire+0x62f/0x4c20
[  275.342510]  ? should_fail+0x22d/0xd01
[  275.346398]  ? rcu_irq_exit+0x1a2/0x390
[  275.350379]  ? mark_held_locks+0x130/0x130
[  275.354620]  ? mark_held_locks+0x130/0x130
[  275.358862]  ? mark_held_locks+0xc7/0x130
[  275.363010]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  275.368031]  ? zap_class+0x640/0x640
[  275.371771]  ? print_usage_bug+0xc0/0xc0
[  275.375835]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.381408]  ? check_preemption_disabled+0x48/0x280
[  275.386450]  ? __lock_is_held+0xb5/0x140
[  275.390521]  __alloc_pages_nodemask+0xa80/0xde0
[  275.395205]  ? zap_class+0x640/0x640
[  275.398922]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  275.403952]  ? find_held_lock+0x36/0x1c0
[  275.408034]  ? ____cache_alloc_node+0x1c7/0x1e0
[  275.412708]  ? lock_downgrade+0x900/0x900
[  275.416871]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.422413]  cache_grow_begin+0xa5/0x8c0
[  275.426487]  ? do_raw_spin_unlock+0xa7/0x330
[  275.430907]  fallback_alloc+0x204/0x2e0
[  275.434890]  ____cache_alloc_node+0x1c7/0x1e0
[  275.439397]  kmem_cache_alloc_node+0xe3/0x730
[  275.443897]  ? ipv6_get_ifaddr+0x42e/0x620
[  275.448143]  __alloc_skb+0x119/0x770
[  275.451859]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.457146]  ? netdev_alloc_frag+0x1f0/0x1f0
[  275.461561]  ? lock_downgrade+0x900/0x900
[  275.465719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.471274]  ? refcount_sub_and_test_checked+0x203/0x310
[  275.476734]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  275.482194]  ? addrconf_rs_timer+0x690/0x690
[  275.486649]  ndisc_alloc_skb+0x144/0x340
[  275.490715]  ndisc_send_rs+0x331/0x6e0
[  275.494619]  addrconf_rs_timer+0x314/0x690
[  275.498864]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.503112]  call_timer_fn+0x272/0x920
[  275.507000]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.511421]  ? process_timeout+0x40/0x40
[  275.515493]  ? mark_held_locks+0xc7/0x130
[  275.519648]  ? _raw_spin_unlock_irq+0x27/0x80
[  275.524145]  ? _raw_spin_unlock_irq+0x27/0x80
[  275.528644]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.532879]  ? lockdep_hardirqs_on+0x296/0x5b0
[  275.537465]  ? trace_hardirqs_on+0xbd/0x310
[  275.541789]  ? kasan_check_read+0x11/0x20
[  275.545938]  ? __run_timers+0x7da/0xc70
[  275.549951]  ? trace_hardirqs_off_caller+0x310/0x310
[  275.555061]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.559364]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  275.563623]  __run_timers+0x7e5/0xc70
[  275.567435]  ? timer_fixup_init+0x70/0x70
[  275.571607]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  275.576628]  ? zap_class+0x640/0x640
[  275.580350]  ? print_usage_bug+0xc0/0xc0
[  275.584415]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  275.589625]  ? find_held_lock+0x36/0x1c0
[  275.593697]  ? zap_class+0x640/0x640
[  275.597421]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.602965]  ? check_preemption_disabled+0x48/0x280
[  275.607996]  ? __lock_is_held+0xb5/0x140
[  275.612061]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.617606]  ? check_preemption_disabled+0x48/0x280
[  275.622629]  run_timer_softirq+0x52/0xb0
[  275.626692]  ? rcu_read_lock_sched_held+0x14f/0x180
[  275.631728]  __do_softirq+0x308/0xb7e
[  275.635545]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  275.640042]  ? lock_downgrade+0x900/0x900
[  275.644195]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  275.649311]  ? pvclock_read_flags+0x160/0x160
[  275.653814]  ? lapic_next_event+0x5a/0x90
[  275.657965]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.663536]  ? kvm_clock_read+0x18/0x30
[  275.667539]  ? kvm_sched_clock_read+0x9/0x20
[  275.671967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.677508]  ? check_preemption_disabled+0x48/0x280
[  275.682536]  irq_exit+0x17f/0x1c0
[  275.685993]  smp_apic_timer_interrupt+0x1cb/0x760
[  275.690838]  ? smp_reschedule_interrupt+0x109/0x650
[  275.695859]  ? smp_call_function_single_interrupt+0x650/0x650
[  275.701754]  ? interrupt_entry+0xb5/0xc0
[  275.705825]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.710853]  ? trace_hardirqs_off_caller+0xbb/0x310
[  275.715873]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.720718]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.725740]  ? trace_hardirqs_on_caller+0x310/0x310
[  275.730770]  ? task_prio+0x50/0x50
[  275.734319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  275.739859]  ? check_preemption_disabled+0x48/0x280
[  275.744883]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  275.749734]  apic_timer_interrupt+0xf/0x20
[  275.753984]  </IRQ>
[  275.756225] RIP: 0010:check_memory_region+0x121/0x1b0
[  275.761425] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  275.780328] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  275.788040] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  275.795312] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  275.802578] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  275.809849] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  275.817412] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  275.824755]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.830113]  kasan_check_read+0x11/0x20
[  275.834101]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  275.839219]  ? rcu_softirq_qs+0x20/0x20
[  275.843206]  rcu_is_watching+0x10/0x30
[  275.847096]  list_lru_count_one+0x362/0x450
[  275.851418]  ? list_lru_isolate_move+0x3c0/0x3c0
[  275.856177]  ? shmem_free_inode+0xd0/0xd0
[  275.860332]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  275.865871]  ? ubifs_shrink_count+0xc4/0x100
[  275.870298]  super_cache_count+0x153/0x2e0
[  275.874539]  do_shrink_slab+0x1b1/0xd30
[  275.878534]  ? lock_acquire+0x1ed/0x520
[  275.882511]  ? snapshot_refaults+0x290/0x290
[  275.886938]  ? lock_release+0xa00/0xa00
[  275.890926]  ? perf_trace_sched_process_exec+0x860/0x860
[  275.896391]  ? down_read_trylock+0xda/0x140
[  275.900708]  ? shrink_slab+0x207/0x8c0
[  275.904597]  ? downgrade_write+0x270/0x270
[  275.908842]  shrink_slab+0x389/0x8c0
[  275.912556]  ? shrink_active_list+0x1f00/0x1f00
[  275.917233]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  275.922863]  ? kasan_check_read+0x11/0x20
[  275.927012]  ? do_raw_spin_unlock+0xa7/0x330
[  275.931430]  ? ___preempt_schedule+0x16/0x18
[  275.935851]  ? _raw_spin_unlock+0x3f/0x50
[  275.940007]  shrink_node+0x431/0x16b0
[  275.943814]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  275.949121]  ? shrink_node_memcg+0x18f0/0x18f0
[  275.953702]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  275.958289]  ? trace_hardirqs_on+0xbd/0x310
[  275.962628]  ? vmpressure+0x271/0x340
[  275.966433]  ? do_raw_spin_trylock+0x270/0x270
[  275.971040]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  275.976640]  ? __cpuset_node_allowed+0x19b/0x660
[  275.981398]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  275.987108]  ? vmpressure+0x1a2/0x340
[  275.990939]  do_try_to_free_pages+0x3e7/0x1290
[  275.995523]  ? zap_class+0x640/0x640
[  275.999254]  ? shrink_node+0x16b0/0x16b0
[  276.003328]  ? __lock_is_held+0xb5/0x140
[  276.007408]  try_to_free_pages+0x4d0/0xb90
[  276.011648]  ? do_try_to_free_pages+0x1290/0x1290
[  276.016504]  ? lock_acquire+0x1ed/0x520
[  276.020508]  ? set_page_refcounted+0x280/0x280
[  276.025100]  ? lock_release+0xa00/0xa00
[  276.029077]  ? _raw_spin_unlock_irq+0x60/0x80
[  276.033593]  ? psi_memstall_enter+0x240/0x2b0
[  276.038094]  ? psi_memstall_tick+0x230/0x230
[  276.042516]  __alloc_pages_slowpath+0xa14/0x2e10
[  276.047304]  ? warn_alloc+0x120/0x120
[  276.051105]  ? mark_held_locks+0x130/0x130
[  276.055348]  ? find_get_entry+0xaae/0x1120
[  276.059610]  ? filemap_map_pages+0x1a20/0x1a20
[  276.064198]  ? zap_class+0x640/0x640
[  276.067923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.073466]  ? check_preemption_disabled+0x48/0x280
[  276.078503]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.084070]  ? should_fail+0x22d/0xd01
[  276.087969]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.093078]  ? zap_class+0x640/0x640
[  276.096839]  ? __lock_is_held+0xb5/0x140
[  276.100913]  ? mark_held_locks+0x130/0x130
[  276.105152]  ? lock_release+0xa00/0xa00
[  276.109131]  ? perf_trace_sched_process_exec+0x860/0x860
[  276.114587]  ? xa_load+0x2ba/0x460
[  276.118131]  ? lock_downgrade+0x900/0x900
[  276.122291]  ? __might_sleep+0x95/0x190
[  276.126291]  __alloc_pages_nodemask+0xa80/0xde0
[  276.130969]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  276.135993]  ? __page_cache_alloc+0x191/0x5c0
[  276.140487]  ? xa_load+0x2e1/0x460
[  276.144031]  ? xa_clear_mark+0x40/0x40
[  276.147925]  ? zap_class+0x640/0x640
[  276.151648]  ? zap_class+0x640/0x640
[  276.155358]  ? zap_class+0x640/0x640
[  276.159073]  ? __do_page_cache_readahead+0x663/0x810
[  276.164179]  ? find_held_lock+0x36/0x1c0
[  276.168244]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  276.173797]  alloc_pages_current+0x173/0x350
[  276.178216]  __page_cache_alloc+0x38c/0x5c0
[  276.182543]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.187471]  ? kasan_check_read+0x11/0x20
[  276.191650]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.196945]  ? generic_perform_write+0x6a0/0x6a0
[  276.201702]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.207244]  ? check_preemption_disabled+0x48/0x280
[  276.212302]  filemap_fault+0x1595/0x25f0
[  276.216381]  ? __lock_page_or_retry+0xa00/0xa00
[  276.221056]  ? mark_held_locks+0x130/0x130
[  276.225303]  ? filemap_map_pages+0xd6b/0x1a20
[  276.229798]  ? lock_downgrade+0x900/0x900
[  276.233946]  ? check_preemption_disabled+0x48/0x280
[  276.238967]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.243895]  ? kasan_check_read+0x11/0x20
[  276.248047]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.253323]  ? rcu_softirq_qs+0x20/0x20
[  276.257312]  ? filemap_map_pages+0xd92/0x1a20
[  276.261826]  ? find_get_entries_tag+0x1400/0x1400
[  276.266666]  ? find_held_lock+0x36/0x1c0
[  276.270756]  ? lock_acquire+0x1ed/0x520
[  276.274731]  ? ext4_filemap_fault+0x7a/0xad
[  276.279072]  ? lock_release+0xa00/0xa00
[  276.283048]  ? perf_trace_sched_process_exec+0x860/0x860
[  276.288504]  ? print_usage_bug+0xc0/0xc0
[  276.292585]  ? down_read+0x8d/0x120
[  276.296212]  ? ext4_filemap_fault+0x7a/0xad
[  276.300535]  ? __down_interruptible+0x700/0x700
[  276.305206]  ? find_held_lock+0x36/0x1c0
[  276.309276]  ext4_filemap_fault+0x82/0xad
[  276.313430]  __do_fault+0x100/0x6b0
[  276.317060]  ? lock_downgrade+0x900/0x900
[  276.321222]  ? pmd_devmap_trans_unstable+0x220/0x220
[  276.326330]  ? kasan_check_read+0x11/0x20
[  276.330483]  ? do_raw_spin_unlock+0xa7/0x330
[  276.334893]  ? do_raw_spin_trylock+0x270/0x270
[  276.339492]  __handle_mm_fault+0x3ea0/0x5be0
[  276.343918]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  276.348780]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  276.353376]  ? zap_class+0x640/0x640
[  276.357093]  ? zap_class+0x640/0x640
[  276.360806]  ? __x64_sys_futex+0x53e/0x6a0
[  276.365050]  ? find_held_lock+0x36/0x1c0
[  276.369122]  ? handle_mm_fault+0x42a/0xc70
[  276.373359]  ? lock_downgrade+0x900/0x900
[  276.377510]  ? check_preemption_disabled+0x48/0x280
[  276.382534]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  276.387469]  ? kasan_check_read+0x11/0x20
[  276.391617]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  276.396900]  ? rcu_softirq_qs+0x20/0x20
[  276.400879]  ? trace_hardirqs_off_caller+0x310/0x310
[  276.405991]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.411535]  ? check_preemption_disabled+0x48/0x280
[  276.416562]  handle_mm_fault+0x54f/0xc70
[  276.420627]  ? __handle_mm_fault+0x5be0/0x5be0
[  276.425220]  ? find_vma+0x34/0x190
[  276.428775]  __do_page_fault+0x5e8/0xe60
[  276.432839]  ? trace_hardirqs_off+0xb8/0x310
[  276.437262]  do_page_fault+0xf2/0x7e0
[  276.441068]  ? vmalloc_sync_all+0x30/0x30
[  276.445221]  ? error_entry+0x70/0xd0
[  276.448937]  ? trace_hardirqs_off_caller+0xbb/0x310
[  276.453956]  ? trace_hardirqs_on_caller+0xc0/0x310
[  276.458886]  ? syscall_return_slowpath+0x5e0/0x5e0
[  276.463826]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.468674]  ? trace_hardirqs_on_caller+0x310/0x310
[  276.473695]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  276.479153]  ? prepare_exit_to_usermode+0x291/0x3b0
[  276.484169]  ? page_fault+0x8/0x30
[  276.487733]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  276.492594]  ? page_fault+0x8/0x30
[  276.496139]  page_fault+0x1e/0x30
[  276.499594] RIP: 0033:0x404068
[  276.502800] Code: Bad RIP value.
[  276.506195] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  276.511555] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  276.518827] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  276.526117] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  276.533386] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  276.540655] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  276.547949] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  276.547955] warn_alloc_show_mem: 1 callbacks suppressed
[  276.547962] Mem-Info:
[  276.555255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  276.560627] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  276.560627]  active_file:13 inactive_file:28 isolated_file:0
[  276.560627]  unevictable:0 dirty:1 writeback:0 unstable:0
[  276.560627]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  276.560627]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  276.560627]  free:13541 free_pcp:161 free_cma:0
[  276.563001] Call Trace:
[  276.572391] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  276.605406]  <IRQ>
[  276.607980] 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
[  276.635910]  dump_stack+0x244/0x39d
[  276.638035] lowmem_reserve[]: 0 2818 6321 6321
[  276.664143]  ? dump_stack_print_info.cold.1+0x20/0x20
[  276.667755] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  276.672341]  warn_alloc.cold.116+0xb7/0x1bd
[  276.677500] lowmem_reserve[]: 0 0 3503 3503
[  276.705084]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  276.709383] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  276.713704]  ? lock_downgrade+0x900/0x900
[  276.718521] lowmem_reserve[]: 0 0 0 0
[  276.747666]  ? trace_hardirqs_off+0xb8/0x310
[  276.751792] 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
[  276.755588]  ? trace_hardirqs_off+0xb8/0x310
[  276.759973] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  276.773495]  __alloc_pages_slowpath+0x26e8/0x2e10
[  276.777877] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  276.793067]  ? warn_alloc+0x120/0x120
[  276.797875] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  276.812339]  ? print_usage_bug+0xc0/0xc0
[  276.816119] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  276.824940]  ? warn_alloc+0x120/0x120
[  276.828983] 4984 total pagecache pages
[  276.837555]  ? warn_alloc+0x120/0x120
[  276.841341] 0 pages in swap cache
[  276.845215]  ? print_usage_bug+0xc0/0xc0
[  276.848999] Swap cache stats: add 0, delete 0, find 0/0
[  276.852442]  ? print_usage_bug+0xc0/0xc0
[  276.856482] Free swap  = 0kB
[  276.861838]  ? __lock_acquire+0x62f/0x4c20
[  276.865876] Total swap = 0kB
[  276.868894]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  276.873106] 1965979 pages RAM
[  276.876120]  ? should_fail+0x22d/0xd01
[  276.881635] 0 pages HighMem/MovableOnly
[  276.884736]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.888608] 342853 pages reserved
[  276.892581]  ? __lock_acquire+0x62f/0x4c20
[  276.897659] 0 pages cma reserved
[  276.901110]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  276.905381] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  276.908674]  ? __lock_acquire+0x62f/0x4c20
[  276.908690]  ? should_fail+0x22d/0xd01
[  276.913862] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  276.920265]  ? find_held_lock+0x36/0x1c0
[  276.924483] syz-fuzzer cpuset=/ mems_allowed=0
[  276.928366]  ? mark_held_locks+0x130/0x130
[  276.951537]  ? mark_held_locks+0x130/0x130
[  276.955781]  ? zap_class+0x640/0x640
[  276.959497]  ? zap_class+0x640/0x640
[  276.963215]  ? print_usage_bug+0xc0/0xc0
[  276.967270]  ? do_raw_spin_unlock+0xa7/0x330
[  276.971678]  ? zap_class+0x640/0x640
[  276.975397]  ? print_usage_bug+0xc0/0xc0
[  276.979462]  ? wq_watchdog_touch+0x9c/0xfe
[  276.983704]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  276.989243]  ? check_preemption_disabled+0x48/0x280
[  276.994270]  ? __lock_is_held+0xb5/0x140
[  276.998339]  __alloc_pages_nodemask+0xa80/0xde0
[  277.003013]  ? zap_class+0x640/0x640
[  277.006731]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  277.011785]  ? find_held_lock+0x36/0x1c0
[  277.015864]  ? ____cache_alloc_node+0x1c7/0x1e0
[  277.020535]  ? lock_downgrade+0x900/0x900
[  277.024693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.030237]  cache_grow_begin+0xa5/0x8c0
[  277.034319]  ? do_raw_spin_unlock+0xa7/0x330
[  277.038736]  fallback_alloc+0x204/0x2e0
[  277.042735]  ____cache_alloc_node+0x1c7/0x1e0
[  277.047248]  kmem_cache_alloc_node+0xe3/0x730
[  277.051762]  ? ipv6_get_ifaddr+0x42e/0x620
[  277.056013]  __alloc_skb+0x119/0x770
[  277.059727]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.065025]  ? netdev_alloc_frag+0x1f0/0x1f0
[  277.069436]  ? lock_downgrade+0x900/0x900
[  277.073594]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.079137]  ? refcount_sub_and_test_checked+0x203/0x310
[  277.084599]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  277.090060]  ? addrconf_rs_timer+0x690/0x690
[  277.094492]  ndisc_alloc_skb+0x144/0x340
[  277.098566]  ndisc_send_rs+0x331/0x6e0
[  277.102464]  addrconf_rs_timer+0x314/0x690
[  277.106708]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.110958]  call_timer_fn+0x272/0x920
[  277.114846]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.119086]  ? process_timeout+0x40/0x40
[  277.123158]  ? __run_timers+0x7da/0xc70
[  277.127140]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.131638]  ? _raw_spin_unlock_irq+0x27/0x80
[  277.136131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.140368]  ? lockdep_hardirqs_on+0x296/0x5b0
[  277.144953]  ? trace_hardirqs_on+0xbd/0x310
[  277.149281]  ? kasan_check_read+0x11/0x20
[  277.153427]  ? __run_timers+0x7da/0xc70
[  277.157404]  ? trace_hardirqs_off_caller+0x310/0x310
[  277.162527]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.166779]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.171016]  __run_timers+0x7e5/0xc70
[  277.174826]  ? timer_fixup_init+0x70/0x70
[  277.178975]  ? kasan_check_read+0x11/0x20
[  277.183125]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.188403]  ? rcu_softirq_qs+0x20/0x20
[  277.192381]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.197920]  ? check_preemption_disabled+0x48/0x280
[  277.202949]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  277.207708]  ? retint_kernel+0x2d/0x2d
[  277.211595]  ? trace_hardirqs_on_caller+0xc0/0x310
[  277.216530]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  277.221288]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  277.226743]  ? zap_class+0x640/0x640
[  277.230484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.236025]  ? check_preemption_disabled+0x48/0x280
[  277.241051]  ? __lock_is_held+0xb5/0x140
[  277.245113]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.250651]  ? check_preemption_disabled+0x48/0x280
[  277.255676]  run_timer_softirq+0x52/0xb0
[  277.259743]  ? rcu_read_lock_sched_held+0x14f/0x180
[  277.264784]  __do_softirq+0x308/0xb7e
[  277.268594]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  277.273093]  ? lock_downgrade+0x900/0x900
[  277.277248]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  277.282378]  ? pvclock_read_flags+0x160/0x160
[  277.286876]  ? lapic_next_event+0x5a/0x90
[  277.291029]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.296572]  ? kvm_clock_read+0x18/0x30
[  277.300550]  ? kvm_sched_clock_read+0x9/0x20
[  277.304966]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.310509]  ? check_preemption_disabled+0x48/0x280
[  277.315536]  irq_exit+0x17f/0x1c0
[  277.318994]  smp_apic_timer_interrupt+0x1cb/0x760
[  277.323839]  ? smp_reschedule_interrupt+0x109/0x650
[  277.328860]  ? smp_call_function_single_interrupt+0x650/0x650
[  277.334791]  ? interrupt_entry+0xb5/0xc0
[  277.338859]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.343878]  ? trace_hardirqs_off_caller+0xbb/0x310
[  277.348896]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.353744]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.358784]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.363809]  ? task_prio+0x50/0x50
[  277.367351]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.372889]  ? check_preemption_disabled+0x48/0x280
[  277.377916]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.382783]  apic_timer_interrupt+0xf/0x20
[  277.387014]  </IRQ>
[  277.389254] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  277.394191] 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
[  277.413091] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  277.420801] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  277.428068] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  277.435339] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  277.442611] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  277.449879] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  277.457195]  skb_clone+0x1bb/0x500
[  277.460739]  ? skb_split+0x11e0/0x11e0
[  277.464774]  ? preempt_notifier_register+0x200/0x200
[  277.469882]  ? __switch_to_asm+0x34/0x70
[  277.473949]  ? __switch_to_asm+0x34/0x70
[  277.478014]  ? __switch_to_asm+0x40/0x70
[  277.482071]  ? __switch_to_asm+0x34/0x70
[  277.486134]  ? __switch_to_asm+0x40/0x70
[  277.490194]  ? __switch_to_asm+0x40/0x70
[  277.494264]  ? __switch_to_asm+0x34/0x70
[  277.498339]  ? __switch_to_asm+0x34/0x70
[  277.502398]  ? __switch_to_asm+0x40/0x70
[  277.506458]  ? __switch_to_asm+0x34/0x70
[  277.510523]  bpf_clone_redirect+0xb9/0x490
[  277.514785]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  277.519808]  ? __sched_text_start+0x8/0x8
[  277.523958]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  277.528723]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  277.533499]  ? find_held_lock+0x36/0x1c0
[  277.537588]  ? lock_acquire+0x1ed/0x520
[  277.541580]  ? bpf_test_run+0x3cb/0x780
[  277.545555]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.551096]  ? check_preemption_disabled+0x48/0x280
[  277.556119]  ? kasan_check_read+0x11/0x20
[  277.560269]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.565550]  ? rcu_softirq_qs+0x20/0x20
[  277.569532]  ? preempt_schedule+0x4d/0x60
[  277.573683]  ? ___preempt_schedule+0x16/0x18
[  277.578104]  ? bpf_test_run+0x25d/0x780
[  277.582089]  ? netlink_diag_dump+0x2a0/0x2a0
[  277.586503]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.592040]  ? bpf_test_init.isra.10+0x70/0x100
[  277.596715]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  277.601495]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  277.606337]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  277.611875]  ? fput+0x130/0x1a0
[  277.615159]  ? __bpf_prog_get+0x9b/0x290
[  277.619239]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  277.624082]  ? bpf_prog_test_run+0x130/0x1a0
[  277.628500]  ? __x64_sys_bpf+0x3d8/0x520
[  277.632564]  ? bpf_prog_get+0x20/0x20
[  277.636405]  ? do_syscall_64+0x1b9/0x820
[  277.640470]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  277.645842]  ? syscall_return_slowpath+0x5e0/0x5e0
[  277.650791]  ? trace_hardirqs_on_caller+0x310/0x310
[  277.655810]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  277.660834]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  277.667514]  ? __switch_to_asm+0x40/0x70
[  277.671573]  ? __switch_to_asm+0x34/0x70
[  277.675645]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  277.680494]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  277.685879] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  277.685961] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  277.692833] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  277.692839] Call Trace:
[  277.692846]  <IRQ>
[  277.692864]  dump_stack+0x244/0x39d
[  277.692882]  ? dump_stack_print_info.cold.1+0x20/0x20
[  277.699408] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  277.708708]  warn_alloc.cold.116+0xb7/0x1bd
[  277.711267] syz-executor4 cpuset=syz4 mems_allowed=0
[  277.713445]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  277.746929]  ? lock_downgrade+0x900/0x900
[  277.751089]  ? trace_hardirqs_off+0xb8/0x310
[  277.755505]  ? trace_hardirqs_off+0xb8/0x310
[  277.759937]  __alloc_pages_slowpath+0x26e8/0x2e10
[  277.764814]  ? warn_alloc+0x120/0x120
[  277.768620]  ? print_usage_bug+0xc0/0xc0
[  277.772682]  ? warn_alloc+0x120/0x120
[  277.776486]  ? warn_alloc+0x120/0x120
[  277.780304]  ? print_usage_bug+0xc0/0xc0
[  277.784381]  ? kvm_clock_read+0x18/0x30
[  277.788357]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  277.793376]  ? print_usage_bug+0xc0/0xc0
[  277.797444]  ? __lock_acquire+0x62f/0x4c20
[  277.801689]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  277.807227]  ? should_fail+0x22d/0xd01
[  277.811119]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.816539]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.821650]  ? __lock_acquire+0x62f/0x4c20
[  277.825891]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  277.830998]  ? __lock_acquire+0x62f/0x4c20
[  277.835234]  ? should_fail+0x22d/0xd01
[  277.839129]  ? rcu_irq_exit+0x1a2/0x390
[  277.843116]  ? mark_held_locks+0x130/0x130
[  277.847357]  ? mark_held_locks+0x130/0x130
[  277.851600]  ? mark_held_locks+0xc7/0x130
[  277.855760]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  277.860781]  ? zap_class+0x640/0x640
[  277.864495]  ? print_usage_bug+0xc0/0xc0
[  277.868560]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.874104]  ? check_preemption_disabled+0x48/0x280
[  277.879131]  ? __lock_is_held+0xb5/0x140
[  277.883198]  __alloc_pages_nodemask+0xa80/0xde0
[  277.887881]  ? zap_class+0x640/0x640
[  277.891606]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  277.896640]  ? find_held_lock+0x36/0x1c0
[  277.900714]  ? ____cache_alloc_node+0x1c7/0x1e0
[  277.905394]  ? lock_downgrade+0x900/0x900
[  277.909549]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.915093]  cache_grow_begin+0xa5/0x8c0
[  277.919159]  ? do_raw_spin_unlock+0xa7/0x330
[  277.923575]  fallback_alloc+0x204/0x2e0
[  277.927557]  ____cache_alloc_node+0x1c7/0x1e0
[  277.932059]  kmem_cache_alloc_node+0xe3/0x730
[  277.936558]  ? ipv6_get_ifaddr+0x42e/0x620
[  277.940810]  __alloc_skb+0x119/0x770
[  277.944534]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  277.949820]  ? netdev_alloc_frag+0x1f0/0x1f0
[  277.954232]  ? lock_downgrade+0x900/0x900
[  277.958394]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  277.963936]  ? refcount_sub_and_test_checked+0x203/0x310
[  277.969394]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  277.974846]  ? addrconf_rs_timer+0x690/0x690
[  277.979274]  ndisc_alloc_skb+0x144/0x340
[  277.983346]  ndisc_send_rs+0x331/0x6e0
[  277.987240]  addrconf_rs_timer+0x314/0x690
[  277.991484]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  277.995730]  call_timer_fn+0x272/0x920
[  277.999630]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.003865]  ? process_timeout+0x40/0x40
[  278.007938]  ? mark_held_locks+0xc7/0x130
[  278.012088]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.016583]  ? _raw_spin_unlock_irq+0x27/0x80
[  278.021080]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.025320]  ? lockdep_hardirqs_on+0x296/0x5b0
[  278.029905]  ? trace_hardirqs_on+0xbd/0x310
[  278.034228]  ? kasan_check_read+0x11/0x20
[  278.038379]  ? __run_timers+0x7da/0xc70
[  278.042361]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.047472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.051768]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  278.056017]  __run_timers+0x7e5/0xc70
[  278.059833]  ? timer_fixup_init+0x70/0x70
[  278.063985]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  278.069005]  ? zap_class+0x640/0x640
[  278.072741]  ? print_usage_bug+0xc0/0xc0
[  278.076823]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  278.082020]  ? find_held_lock+0x36/0x1c0
[  278.086087]  ? zap_class+0x640/0x640
[  278.089814]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.095355]  ? check_preemption_disabled+0x48/0x280
[  278.100386]  ? __lock_is_held+0xb5/0x140
[  278.104450]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.109989]  ? check_preemption_disabled+0x48/0x280
[  278.115016]  run_timer_softirq+0x52/0xb0
[  278.119079]  ? rcu_read_lock_sched_held+0x14f/0x180
[  278.124100]  __do_softirq+0x308/0xb7e
[  278.127905]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  278.132417]  ? lock_downgrade+0x900/0x900
[  278.136568]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  278.141683]  ? pvclock_read_flags+0x160/0x160
[  278.146181]  ? lapic_next_event+0x5a/0x90
[  278.150335]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.155883]  ? kvm_clock_read+0x18/0x30
[  278.159859]  ? kvm_sched_clock_read+0x9/0x20
[  278.164280]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.169826]  ? check_preemption_disabled+0x48/0x280
[  278.174858]  irq_exit+0x17f/0x1c0
[  278.178322]  smp_apic_timer_interrupt+0x1cb/0x760
[  278.183167]  ? smp_reschedule_interrupt+0x109/0x650
[  278.188193]  ? smp_call_function_single_interrupt+0x650/0x650
[  278.194078]  ? interrupt_entry+0xb5/0xc0
[  278.198147]  ? trace_hardirqs_off_caller+0xbb/0x310
[  278.203165]  ? trace_hardirqs_off_caller+0xbb/0x310
[  278.208198]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.213046]  ? trace_hardirqs_on_caller+0x310/0x310
[  278.218067]  ? trace_hardirqs_on_caller+0x310/0x310
[  278.223083]  ? task_prio+0x50/0x50
[  278.226624]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.232164]  ? check_preemption_disabled+0x48/0x280
[  278.237188]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.242041]  apic_timer_interrupt+0xf/0x20
[  278.246272]  </IRQ>
[  278.248517] RIP: 0010:check_memory_region+0x121/0x1b0
[  278.253711] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  278.272614] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  278.280324] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  278.287589] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  278.294854] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  278.302125] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  278.309394] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  278.316693]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.321981]  kasan_check_read+0x11/0x20
[  278.325957]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.331061]  ? rcu_softirq_qs+0x20/0x20
[  278.335047]  rcu_is_watching+0x10/0x30
[  278.338938]  list_lru_count_one+0x362/0x450
[  278.343268]  ? list_lru_isolate_move+0x3c0/0x3c0
[  278.348046]  ? shmem_free_inode+0xd0/0xd0
[  278.352213]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.357760]  ? ubifs_shrink_count+0xc4/0x100
[  278.362215]  super_cache_count+0x153/0x2e0
[  278.366459]  do_shrink_slab+0x1b1/0xd30
[  278.370476]  ? lock_acquire+0x1ed/0x520
[  278.374485]  ? snapshot_refaults+0x290/0x290
[  278.378899]  ? lock_release+0xa00/0xa00
[  278.382883]  ? perf_trace_sched_process_exec+0x860/0x860
[  278.388346]  ? down_read_trylock+0xda/0x140
[  278.392663]  ? shrink_slab+0x207/0x8c0
[  278.396552]  ? downgrade_write+0x270/0x270
[  278.400798]  shrink_slab+0x389/0x8c0
[  278.404517]  ? shrink_active_list+0x1f00/0x1f00
[  278.409206]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  278.414841]  ? kasan_check_read+0x11/0x20
[  278.418989]  ? do_raw_spin_unlock+0xa7/0x330
[  278.423410]  ? ___preempt_schedule+0x16/0x18
[  278.427844]  ? _raw_spin_unlock+0x3f/0x50
[  278.432001]  shrink_node+0x431/0x16b0
[  278.435809]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  278.441114]  ? shrink_node_memcg+0x18f0/0x18f0
[  278.445702]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  278.450304]  ? trace_hardirqs_on+0xbd/0x310
[  278.454626]  ? vmpressure+0x271/0x340
[  278.458461]  ? do_raw_spin_trylock+0x270/0x270
[  278.463071]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  278.468630]  ? __cpuset_node_allowed+0x19b/0x660
[  278.473394]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  278.479104]  ? vmpressure+0x1a2/0x340
[  278.482915]  do_try_to_free_pages+0x3e7/0x1290
[  278.487500]  ? zap_class+0x640/0x640
[  278.491226]  ? shrink_node+0x16b0/0x16b0
[  278.495307]  ? __lock_is_held+0xb5/0x140
[  278.499383]  try_to_free_pages+0x4d0/0xb90
[  278.503624]  ? do_try_to_free_pages+0x1290/0x1290
[  278.508481]  ? lock_acquire+0x1ed/0x520
[  278.512474]  ? set_page_refcounted+0x280/0x280
[  278.517065]  ? lock_release+0xa00/0xa00
[  278.521044]  ? _raw_spin_unlock_irq+0x60/0x80
[  278.525541]  ? psi_memstall_enter+0x240/0x2b0
[  278.530054]  ? psi_memstall_tick+0x230/0x230
[  278.534492]  __alloc_pages_slowpath+0xa14/0x2e10
[  278.539281]  ? warn_alloc+0x120/0x120
[  278.543085]  ? mark_held_locks+0x130/0x130
[  278.547328]  ? find_get_entry+0xaae/0x1120
[  278.551580]  ? filemap_map_pages+0x1a20/0x1a20
[  278.556186]  ? zap_class+0x640/0x640
[  278.559909]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  278.565454]  ? check_preemption_disabled+0x48/0x280
[  278.570470]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.576009]  ? should_fail+0x22d/0xd01
[  278.579921]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  278.585026]  ? zap_class+0x640/0x640
[  278.588774]  ? __lock_is_held+0xb5/0x140
[  278.592848]  ? mark_held_locks+0x130/0x130
[  278.597090]  ? lock_release+0xa00/0xa00
[  278.601068]  ? perf_trace_sched_process_exec+0x860/0x860
[  278.606533]  ? xa_load+0x2ba/0x460
[  278.610108]  ? lock_downgrade+0x900/0x900
[  278.614285]  ? __might_sleep+0x95/0x190
[  278.618274]  __alloc_pages_nodemask+0xa80/0xde0
[  278.622951]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  278.627975]  ? __page_cache_alloc+0x191/0x5c0
[  278.632479]  ? xa_load+0x2e1/0x460
[  278.636032]  ? xa_clear_mark+0x40/0x40
[  278.639928]  ? zap_class+0x640/0x640
[  278.643654]  ? zap_class+0x640/0x640
[  278.647369]  ? zap_class+0x640/0x640
[  278.651084]  ? __do_page_cache_readahead+0x663/0x810
[  278.656198]  ? find_held_lock+0x36/0x1c0
[  278.660269]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  278.665821]  alloc_pages_current+0x173/0x350
[  278.670238]  __page_cache_alloc+0x38c/0x5c0
[  278.674562]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.679513]  ? kasan_check_read+0x11/0x20
[  278.683664]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.688945]  ? generic_perform_write+0x6a0/0x6a0
[  278.693702]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.699245]  ? check_preemption_disabled+0x48/0x280
[  278.704279]  filemap_fault+0x1595/0x25f0
[  278.708369]  ? __lock_page_or_retry+0xa00/0xa00
[  278.713042]  ? mark_held_locks+0x130/0x130
[  278.717310]  ? filemap_map_pages+0xd6b/0x1a20
[  278.721808]  ? lock_downgrade+0x900/0x900
[  278.725962]  ? check_preemption_disabled+0x48/0x280
[  278.730986]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.735915]  ? kasan_check_read+0x11/0x20
[  278.740063]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.745340]  ? rcu_softirq_qs+0x20/0x20
[  278.749333]  ? filemap_map_pages+0xd92/0x1a20
[  278.753844]  ? find_get_entries_tag+0x1400/0x1400
[  278.758687]  ? find_held_lock+0x36/0x1c0
[  278.762778]  ? lock_acquire+0x1ed/0x520
[  278.766765]  ? ext4_filemap_fault+0x7a/0xad
[  278.771100]  ? lock_release+0xa00/0xa00
[  278.775074]  ? perf_trace_sched_process_exec+0x860/0x860
[  278.780545]  ? print_usage_bug+0xc0/0xc0
[  278.784650]  ? down_read+0x8d/0x120
[  278.788281]  ? ext4_filemap_fault+0x7a/0xad
[  278.792606]  ? __down_interruptible+0x700/0x700
[  278.797284]  ? find_held_lock+0x36/0x1c0
[  278.801365]  ext4_filemap_fault+0x82/0xad
[  278.805560]  __do_fault+0x100/0x6b0
[  278.809188]  ? lock_downgrade+0x900/0x900
[  278.813341]  ? pmd_devmap_trans_unstable+0x220/0x220
[  278.818470]  ? kasan_check_read+0x11/0x20
[  278.822619]  ? do_raw_spin_unlock+0xa7/0x330
[  278.827031]  ? do_raw_spin_trylock+0x270/0x270
[  278.831628]  __handle_mm_fault+0x3ea0/0x5be0
[  278.836068]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  278.840941]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  278.845564]  ? zap_class+0x640/0x640
[  278.849299]  ? zap_class+0x640/0x640
[  278.853012]  ? __x64_sys_futex+0x53e/0x6a0
[  278.857256]  ? find_held_lock+0x36/0x1c0
[  278.861336]  ? handle_mm_fault+0x42a/0xc70
[  278.865575]  ? lock_downgrade+0x900/0x900
[  278.869733]  ? check_preemption_disabled+0x48/0x280
[  278.874770]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  278.879703]  ? kasan_check_read+0x11/0x20
[  278.883857]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  278.889134]  ? rcu_softirq_qs+0x20/0x20
[  278.893112]  ? trace_hardirqs_off_caller+0x310/0x310
[  278.898231]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  278.903774]  ? check_preemption_disabled+0x48/0x280
[  278.908800]  handle_mm_fault+0x54f/0xc70
[  278.912867]  ? __handle_mm_fault+0x5be0/0x5be0
[  278.917483]  ? find_vma+0x34/0x190
[  278.921042]  __do_page_fault+0x5e8/0xe60
[  278.925104]  ? trace_hardirqs_off+0xb8/0x310
[  278.929526]  do_page_fault+0xf2/0x7e0
[  278.933332]  ? vmalloc_sync_all+0x30/0x30
[  278.937482]  ? error_entry+0x70/0xd0
[  278.941199]  ? trace_hardirqs_off_caller+0xbb/0x310
[  278.946721]  ? trace_hardirqs_on_caller+0xc0/0x310
[  278.951662]  ? syscall_return_slowpath+0x5e0/0x5e0
[  278.956596]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.961445]  ? trace_hardirqs_on_caller+0x310/0x310
[  278.966468]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  278.971926]  ? prepare_exit_to_usermode+0x291/0x3b0
[  278.976942]  ? page_fault+0x8/0x30
[  278.980498]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  278.985341]  ? page_fault+0x8/0x30
[  278.988887]  page_fault+0x1e/0x30
[  278.992344] RIP: 0033:0x404068
[  278.995549] Code: Bad RIP value.
[  278.998916] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  279.004294] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  279.011586] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  279.018855] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  279.026121] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  279.033389] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  279.040686] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  279.040692] warn_alloc_show_mem: 1 callbacks suppressed
[  279.040699] Mem-Info:
[  279.047978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  279.053360] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  279.053360]  active_file:13 inactive_file:28 isolated_file:0
[  279.053360]  unevictable:0 dirty:1 writeback:0 unstable:0
[  279.053360]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  279.053360]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  279.053360]  free:13541 free_pcp:161 free_cma:0
[  279.055732] Call Trace:
[  279.065126] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  279.098144]  <IRQ>
[  279.100735] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  279.128681]  dump_stack+0x244/0x39d
[  279.130807] lowmem_reserve[]: 0 2818 6321 6321
[  279.156915]  ? dump_stack_print_info.cold.1+0x20/0x20
[  279.160515] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  279.165098]  warn_alloc.cold.116+0xb7/0x1bd
[  279.170254] lowmem_reserve[]: 0 0 3503 3503
[  279.197832]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  279.202133] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  279.206450]  ? lock_downgrade+0x900/0x900
[  279.211271] lowmem_reserve[]: 0 0 0 0
[  279.240418]  ? trace_hardirqs_off+0xb8/0x310
[  279.244582] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  279.248397]  ? trace_hardirqs_off+0xb8/0x310
[  279.252781] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  279.266301]  __alloc_pages_slowpath+0x26e8/0x2e10
[  279.270680] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  279.285869]  ? warn_alloc+0x120/0x120
[  279.290675] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  279.305140]  ? print_usage_bug+0xc0/0xc0
[  279.308926] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  279.317756]  ? warn_alloc+0x120/0x120
[  279.321798] 4984 total pagecache pages
[  279.330369]  ? warn_alloc+0x120/0x120
[  279.334150] 0 pages in swap cache
[  279.338023]  ? print_usage_bug+0xc0/0xc0
[  279.341803] Swap cache stats: add 0, delete 0, find 0/0
[  279.345244]  ? print_usage_bug+0xc0/0xc0
[  279.349291] Free swap  = 0kB
[  279.354650]  ? __lock_acquire+0x62f/0x4c20
[  279.358685] Total swap = 0kB
[  279.361704]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.365911] 1965979 pages RAM
[  279.368923]  ? should_fail+0x22d/0xd01
[  279.374433] 0 pages HighMem/MovableOnly
[  279.377536]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.381398] 342853 pages reserved
[  279.385365]  ? __lock_acquire+0x62f/0x4c20
[  279.390444] 0 pages cma reserved
[  279.393893]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  279.398162] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  279.401502]  ? __lock_acquire+0x62f/0x4c20
[  279.401515]  ? should_fail+0x22d/0xd01
[  279.401530]  ? find_held_lock+0x36/0x1c0
[  279.401551]  ? mark_held_locks+0x130/0x130
[  279.406688] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  279.413115]  ? mark_held_locks+0x130/0x130
[  279.417327] syz-fuzzer cpuset=/ mems_allowed=0
[  279.421204]  ? zap_class+0x640/0x640
[  279.452175]  ? zap_class+0x640/0x640
[  279.455892]  ? print_usage_bug+0xc0/0xc0
[  279.459950]  ? do_raw_spin_unlock+0xa7/0x330
[  279.464361]  ? zap_class+0x640/0x640
[  279.468074]  ? print_usage_bug+0xc0/0xc0
[  279.472137]  ? wq_watchdog_touch+0x9c/0xfe
[  279.476378]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.481921]  ? check_preemption_disabled+0x48/0x280
[  279.486951]  ? __lock_is_held+0xb5/0x140
[  279.491021]  __alloc_pages_nodemask+0xa80/0xde0
[  279.495695]  ? zap_class+0x640/0x640
[  279.499414]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  279.504443]  ? find_held_lock+0x36/0x1c0
[  279.508524]  ? ____cache_alloc_node+0x1c7/0x1e0
[  279.513194]  ? lock_downgrade+0x900/0x900
[  279.517351]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.522893]  cache_grow_begin+0xa5/0x8c0
[  279.526954]  ? do_raw_spin_unlock+0xa7/0x330
[  279.531373]  fallback_alloc+0x204/0x2e0
[  279.535357]  ____cache_alloc_node+0x1c7/0x1e0
[  279.539876]  kmem_cache_alloc_node+0xe3/0x730
[  279.544378]  ? ipv6_get_ifaddr+0x42e/0x620
[  279.548628]  __alloc_skb+0x119/0x770
[  279.552342]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.557623]  ? netdev_alloc_frag+0x1f0/0x1f0
[  279.562030]  ? lock_downgrade+0x900/0x900
[  279.566190]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.571726]  ? refcount_sub_and_test_checked+0x203/0x310
[  279.577197]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  279.582653]  ? addrconf_rs_timer+0x690/0x690
[  279.587078]  ndisc_alloc_skb+0x144/0x340
[  279.591148]  ndisc_send_rs+0x331/0x6e0
[  279.595044]  addrconf_rs_timer+0x314/0x690
[  279.599290]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.603549]  call_timer_fn+0x272/0x920
[  279.607438]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.611679]  ? process_timeout+0x40/0x40
[  279.615756]  ? __run_timers+0x7da/0xc70
[  279.619740]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.624283]  ? _raw_spin_unlock_irq+0x27/0x80
[  279.628787]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.633026]  ? lockdep_hardirqs_on+0x296/0x5b0
[  279.637611]  ? trace_hardirqs_on+0xbd/0x310
[  279.641931]  ? kasan_check_read+0x11/0x20
[  279.646078]  ? __run_timers+0x7da/0xc70
[  279.650057]  ? trace_hardirqs_off_caller+0x310/0x310
[  279.655178]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.659432]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  279.663666]  __run_timers+0x7e5/0xc70
[  279.667490]  ? timer_fixup_init+0x70/0x70
[  279.671640]  ? kasan_check_read+0x11/0x20
[  279.675790]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  279.681068]  ? rcu_softirq_qs+0x20/0x20
[  279.685047]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.690587]  ? check_preemption_disabled+0x48/0x280
[  279.695625]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  279.700388]  ? retint_kernel+0x2d/0x2d
[  279.704281]  ? trace_hardirqs_on_caller+0xc0/0x310
[  279.709215]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  279.713976]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  279.719430]  ? zap_class+0x640/0x640
[  279.723146]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.728690]  ? check_preemption_disabled+0x48/0x280
[  279.733719]  ? __lock_is_held+0xb5/0x140
[  279.737799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.743357]  ? check_preemption_disabled+0x48/0x280
[  279.748383]  run_timer_softirq+0x52/0xb0
[  279.752445]  ? rcu_read_lock_sched_held+0x14f/0x180
[  279.757461]  __do_softirq+0x308/0xb7e
[  279.761267]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  279.765811]  ? lock_downgrade+0x900/0x900
[  279.769969]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  279.775085]  ? pvclock_read_flags+0x160/0x160
[  279.779585]  ? lapic_next_event+0x5a/0x90
[  279.783737]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.789305]  ? kvm_clock_read+0x18/0x30
[  279.793280]  ? kvm_sched_clock_read+0x9/0x20
[  279.797694]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  279.803254]  ? check_preemption_disabled+0x48/0x280
[  279.808299]  irq_exit+0x17f/0x1c0
[  279.811765]  smp_apic_timer_interrupt+0x1cb/0x760
[  279.817117]  ? smp_reschedule_interrupt+0x109/0x650
[  279.822168]  ? smp_call_function_single_interrupt+0x650/0x650
[  279.828052]  ? interrupt_entry+0xb5/0xc0
[  279.832115]  ? trace_hardirqs_off_caller+0xbb/0x310
[  279.837132]  ? trace_hardirqs_off_caller+0xbb/0x310
[  279.842163]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.847021]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.852056]  ? trace_hardirqs_on_caller+0x310/0x310
[  279.857092]  ? task_prio+0x50/0x50
[  279.860637]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  279.866179]  ? check_preemption_disabled+0x48/0x280
[  279.871219]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  279.876069]  apic_timer_interrupt+0xf/0x20
[  279.880295]  </IRQ>
[  279.882538] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  279.887470] 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
[  279.906368] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  279.914076] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  279.921362] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  279.928658] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  279.935925] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  279.943195] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  279.950502]  skb_clone+0x1bb/0x500
[  279.954049]  ? skb_split+0x11e0/0x11e0
[  279.957946]  ? preempt_notifier_register+0x200/0x200
[  279.963049]  ? __switch_to_asm+0x34/0x70
[  279.967108]  ? __switch_to_asm+0x34/0x70
[  279.971166]  ? __switch_to_asm+0x40/0x70
[  279.975242]  ? __switch_to_asm+0x34/0x70
[  279.979313]  ? __switch_to_asm+0x40/0x70
[  279.983373]  ? __switch_to_asm+0x40/0x70
[  279.987433]  ? __switch_to_asm+0x34/0x70
[  279.991493]  ? __switch_to_asm+0x34/0x70
[  279.995553]  ? __switch_to_asm+0x40/0x70
[  279.999611]  ? __switch_to_asm+0x34/0x70
[  280.003679]  bpf_clone_redirect+0xb9/0x490
[  280.007931]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  280.012949]  ? __sched_text_start+0x8/0x8
[  280.017100]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  280.021866]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  280.026628]  ? find_held_lock+0x36/0x1c0
[  280.030698]  ? lock_acquire+0x1ed/0x520
[  280.034673]  ? bpf_test_run+0x3cb/0x780
[  280.038653]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.044192]  ? check_preemption_disabled+0x48/0x280
[  280.049218]  ? kasan_check_read+0x11/0x20
[  280.053366]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.058643]  ? rcu_softirq_qs+0x20/0x20
[  280.062618]  ? preempt_schedule+0x4d/0x60
[  280.066777]  ? ___preempt_schedule+0x16/0x18
[  280.071195]  ? bpf_test_run+0x25d/0x780
[  280.075182]  ? netlink_diag_dump+0x2a0/0x2a0
[  280.079597]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.085139]  ? bpf_test_init.isra.10+0x70/0x100
[  280.089819]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  280.094590]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  280.099450]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  280.104991]  ? fput+0x130/0x1a0
[  280.108290]  ? __bpf_prog_get+0x9b/0x290
[  280.112376]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  280.117218]  ? bpf_prog_test_run+0x130/0x1a0
[  280.121642]  ? __x64_sys_bpf+0x3d8/0x520
[  280.125718]  ? bpf_prog_get+0x20/0x20
[  280.129548]  ? do_syscall_64+0x1b9/0x820
[  280.133623]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  280.138992]  ? syscall_return_slowpath+0x5e0/0x5e0
[  280.143928]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.148944]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  280.153963]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  280.160631]  ? __switch_to_asm+0x40/0x70
[  280.164694]  ? __switch_to_asm+0x34/0x70
[  280.168771]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.173630]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  280.179016] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  280.179085] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  280.185946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  280.185952] Call Trace:
[  280.185959]  <IRQ>
[  280.185976]  dump_stack+0x244/0x39d
[  280.185996]  ? dump_stack_print_info.cold.1+0x20/0x20
[  280.192561] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  280.201837]  warn_alloc.cold.116+0xb7/0x1bd
[  280.204391] syz-executor4 cpuset=syz4 mems_allowed=0
[  280.206538]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  280.240042]  ? lock_downgrade+0x900/0x900
[  280.244204]  ? trace_hardirqs_off+0xb8/0x310
[  280.248619]  ? trace_hardirqs_off+0xb8/0x310
[  280.253038]  __alloc_pages_slowpath+0x26e8/0x2e10
[  280.257909]  ? warn_alloc+0x120/0x120
[  280.261718]  ? print_usage_bug+0xc0/0xc0
[  280.265789]  ? warn_alloc+0x120/0x120
[  280.269601]  ? warn_alloc+0x120/0x120
[  280.273402]  ? print_usage_bug+0xc0/0xc0
[  280.277470]  ? print_usage_bug+0xc0/0xc0
[  280.281535]  ? __lock_acquire+0x62f/0x4c20
[  280.285782]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.291322]  ? should_fail+0x22d/0xd01
[  280.295217]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  280.300354]  ? __lock_acquire+0x62f/0x4c20
[  280.304595]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  280.309701]  ? __lock_acquire+0x62f/0x4c20
[  280.313933]  ? should_fail+0x22d/0xd01
[  280.317824]  ? find_held_lock+0x36/0x1c0
[  280.321898]  ? mark_held_locks+0x130/0x130
[  280.326144]  ? mark_held_locks+0x130/0x130
[  280.330397]  ? zap_class+0x640/0x640
[  280.334112]  ? zap_class+0x640/0x640
[  280.337832]  ? print_usage_bug+0xc0/0xc0
[  280.341891]  ? do_raw_spin_unlock+0xa7/0x330
[  280.346305]  ? zap_class+0x640/0x640
[  280.350019]  ? print_usage_bug+0xc0/0xc0
[  280.354085]  ? wq_watchdog_touch+0x9c/0xfe
[  280.358324]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.363865]  ? check_preemption_disabled+0x48/0x280
[  280.368891]  ? __lock_is_held+0xb5/0x140
[  280.372961]  __alloc_pages_nodemask+0xa80/0xde0
[  280.377630]  ? zap_class+0x640/0x640
[  280.381350]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  280.386378]  ? find_held_lock+0x36/0x1c0
[  280.390450]  ? ____cache_alloc_node+0x1c7/0x1e0
[  280.395121]  ? lock_downgrade+0x900/0x900
[  280.399284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.404827]  cache_grow_begin+0xa5/0x8c0
[  280.408889]  ? do_raw_spin_unlock+0xa7/0x330
[  280.413307]  fallback_alloc+0x204/0x2e0
[  280.417293]  ____cache_alloc_node+0x1c7/0x1e0
[  280.421804]  kmem_cache_alloc_node+0xe3/0x730
[  280.426307]  ? ipv6_get_ifaddr+0x42e/0x620
[  280.430558]  __alloc_skb+0x119/0x770
[  280.434276]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.439572]  ? netdev_alloc_frag+0x1f0/0x1f0
[  280.443987]  ? lock_downgrade+0x900/0x900
[  280.448187]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.453724]  ? refcount_sub_and_test_checked+0x203/0x310
[  280.459194]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  280.464650]  ? addrconf_rs_timer+0x690/0x690
[  280.469072]  ndisc_alloc_skb+0x144/0x340
[  280.473167]  ndisc_send_rs+0x331/0x6e0
[  280.477062]  addrconf_rs_timer+0x314/0x690
[  280.481306]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.485556]  call_timer_fn+0x272/0x920
[  280.489444]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.493681]  ? process_timeout+0x40/0x40
[  280.497761]  ? mark_held_locks+0xc7/0x130
[  280.501916]  ? _raw_spin_unlock_irq+0x27/0x80
[  280.506425]  ? _raw_spin_unlock_irq+0x27/0x80
[  280.510920]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.515164]  ? lockdep_hardirqs_on+0x296/0x5b0
[  280.519758]  ? trace_hardirqs_on+0xbd/0x310
[  280.524080]  ? kasan_check_read+0x11/0x20
[  280.528244]  ? __run_timers+0x7da/0xc70
[  280.532227]  ? trace_hardirqs_off_caller+0x310/0x310
[  280.537339]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.541580]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  280.545814]  __run_timers+0x7e5/0xc70
[  280.549638]  ? timer_fixup_init+0x70/0x70
[  280.553791]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  280.558830]  ? zap_class+0x640/0x640
[  280.562553]  ? print_usage_bug+0xc0/0xc0
[  280.566649]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  280.571852]  ? find_held_lock+0x36/0x1c0
[  280.575926]  ? zap_class+0x640/0x640
[  280.579650]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.585192]  ? check_preemption_disabled+0x48/0x280
[  280.590225]  ? __lock_is_held+0xb5/0x140
[  280.594295]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.599841]  ? check_preemption_disabled+0x48/0x280
[  280.604870]  run_timer_softirq+0x52/0xb0
[  280.608939]  ? rcu_read_lock_sched_held+0x14f/0x180
[  280.613965]  __do_softirq+0x308/0xb7e
[  280.617779]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  280.622286]  ? lock_downgrade+0x900/0x900
[  280.626442]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  280.631559]  ? pvclock_read_flags+0x160/0x160
[  280.636063]  ? lapic_next_event+0x5a/0x90
[  280.640219]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.645782]  ? kvm_clock_read+0x18/0x30
[  280.649779]  ? kvm_sched_clock_read+0x9/0x20
[  280.654209]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.659765]  ? check_preemption_disabled+0x48/0x280
[  280.664810]  irq_exit+0x17f/0x1c0
[  280.668279]  smp_apic_timer_interrupt+0x1cb/0x760
[  280.673133]  ? smp_reschedule_interrupt+0x109/0x650
[  280.678159]  ? smp_call_function_single_interrupt+0x650/0x650
[  280.684053]  ? interrupt_entry+0xb5/0xc0
[  280.688127]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.693150]  ? trace_hardirqs_off_caller+0xbb/0x310
[  280.698181]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.703036]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.708066]  ? trace_hardirqs_on_caller+0x310/0x310
[  280.713091]  ? task_prio+0x50/0x50
[  280.716647]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  280.722212]  ? check_preemption_disabled+0x48/0x280
[  280.727251]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  280.732120]  apic_timer_interrupt+0xf/0x20
[  280.736363]  </IRQ>
[  280.738617] RIP: 0010:check_memory_region+0x121/0x1b0
[  280.743825] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  280.762734] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  280.770471] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  280.777769] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  280.785048] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  280.792325] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  280.799604] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  280.806906]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.812207]  kasan_check_read+0x11/0x20
[  280.816193]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  280.821311]  ? rcu_softirq_qs+0x20/0x20
[  280.825306]  rcu_is_watching+0x10/0x30
[  280.829205]  list_lru_count_one+0x362/0x450
[  280.833537]  ? list_lru_isolate_move+0x3c0/0x3c0
[  280.838303]  ? shmem_free_inode+0xd0/0xd0
[  280.842480]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  280.848028]  ? ubifs_shrink_count+0xc4/0x100
[  280.852459]  super_cache_count+0x153/0x2e0
[  280.856710]  do_shrink_slab+0x1b1/0xd30
[  280.860705]  ? lock_acquire+0x1ed/0x520
[  280.864695]  ? snapshot_refaults+0x290/0x290
[  280.869116]  ? lock_release+0xa00/0xa00
[  280.873109]  ? perf_trace_sched_process_exec+0x860/0x860
[  280.878585]  ? down_read_trylock+0xda/0x140
[  280.882918]  ? shrink_slab+0x207/0x8c0
[  280.886817]  ? downgrade_write+0x270/0x270
[  280.891079]  shrink_slab+0x389/0x8c0
[  280.894827]  ? shrink_active_list+0x1f00/0x1f00
[  280.899513]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  280.905151]  ? kasan_check_read+0x11/0x20
[  280.909318]  ? do_raw_spin_unlock+0xa7/0x330
[  280.913744]  ? ___preempt_schedule+0x16/0x18
[  280.918194]  ? _raw_spin_unlock+0x3f/0x50
[  280.922361]  shrink_node+0x431/0x16b0
[  280.926317]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  280.931630]  ? shrink_node_memcg+0x18f0/0x18f0
[  280.936228]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  280.940830]  ? trace_hardirqs_on+0xbd/0x310
[  280.945716]  ? vmpressure+0x271/0x340
[  280.949552]  ? do_raw_spin_trylock+0x270/0x270
[  280.954153]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  280.959703]  ? __cpuset_node_allowed+0x19b/0x660
[  280.964476]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  280.970196]  ? vmpressure+0x1a2/0x340
[  280.974015]  do_try_to_free_pages+0x3e7/0x1290
[  280.978605]  ? zap_class+0x640/0x640
[  280.982348]  ? shrink_node+0x16b0/0x16b0
[  280.986421]  ? __lock_is_held+0xb5/0x140
[  280.990510]  try_to_free_pages+0x4d0/0xb90
[  280.994779]  ? do_try_to_free_pages+0x1290/0x1290
[  280.999649]  ? lock_acquire+0x1ed/0x520
[  281.003636]  ? set_page_refcounted+0x280/0x280
[  281.008234]  ? lock_release+0xa00/0xa00
[  281.012228]  ? _raw_spin_unlock_irq+0x60/0x80
[  281.016744]  ? psi_memstall_enter+0x240/0x2b0
[  281.021276]  ? psi_memstall_tick+0x230/0x230
[  281.025711]  __alloc_pages_slowpath+0xa14/0x2e10
[  281.030505]  ? warn_alloc+0x120/0x120
[  281.034316]  ? mark_held_locks+0x130/0x130
[  281.038567]  ? find_get_entry+0xaae/0x1120
[  281.042827]  ? filemap_map_pages+0x1a20/0x1a20
[  281.047424]  ? zap_class+0x640/0x640
[  281.051157]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.056706]  ? check_preemption_disabled+0x48/0x280
[  281.061732]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.067298]  ? should_fail+0x22d/0xd01
[  281.071204]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.076318]  ? zap_class+0x640/0x640
[  281.080076]  ? __lock_is_held+0xb5/0x140
[  281.084154]  ? mark_held_locks+0x130/0x130
[  281.088407]  ? lock_release+0xa00/0xa00
[  281.092394]  ? perf_trace_sched_process_exec+0x860/0x860
[  281.097862]  ? xa_load+0x2ba/0x460
[  281.101466]  ? lock_downgrade+0x900/0x900
[  281.105630]  ? __might_sleep+0x95/0x190
[  281.109620]  __alloc_pages_nodemask+0xa80/0xde0
[  281.114307]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  281.119338]  ? __page_cache_alloc+0x191/0x5c0
[  281.123844]  ? xa_load+0x2e1/0x460
[  281.127397]  ? xa_clear_mark+0x40/0x40
[  281.131295]  ? zap_class+0x640/0x640
[  281.135027]  ? zap_class+0x640/0x640
[  281.138771]  ? zap_class+0x640/0x640
[  281.142503]  ? __do_page_cache_readahead+0x663/0x810
[  281.147623]  ? find_held_lock+0x36/0x1c0
[  281.151705]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  281.157270]  alloc_pages_current+0x173/0x350
[  281.161699]  __page_cache_alloc+0x38c/0x5c0
[  281.166029]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  281.170973]  ? kasan_check_read+0x11/0x20
[  281.175133]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.180442]  ? generic_perform_write+0x6a0/0x6a0
[  281.185234]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.190801]  ? check_preemption_disabled+0x48/0x280
[  281.195840]  filemap_fault+0x1595/0x25f0
[  281.199929]  ? __lock_page_or_retry+0xa00/0xa00
[  281.204615]  ? mark_held_locks+0x130/0x130
[  281.208875]  ? filemap_map_pages+0xd6b/0x1a20
[  281.213384]  ? lock_downgrade+0x900/0x900
[  281.217547]  ? check_preemption_disabled+0x48/0x280
[  281.222580]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  281.227522]  ? kasan_check_read+0x11/0x20
[  281.231682]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.236969]  ? rcu_softirq_qs+0x20/0x20
[  281.240970]  ? filemap_map_pages+0xd92/0x1a20
[  281.245491]  ? find_get_entries_tag+0x1400/0x1400
[  281.250346]  ? find_held_lock+0x36/0x1c0
[  281.254442]  ? lock_acquire+0x1ed/0x520
[  281.258424]  ? ext4_filemap_fault+0x7a/0xad
[  281.262779]  ? lock_release+0xa00/0xa00
[  281.266783]  ? perf_trace_sched_process_exec+0x860/0x860
[  281.272247]  ? print_usage_bug+0xc0/0xc0
[  281.276340]  ? down_read+0x8d/0x120
[  281.279976]  ? ext4_filemap_fault+0x7a/0xad
[  281.284312]  ? __down_interruptible+0x700/0x700
[  281.288995]  ? find_held_lock+0x36/0x1c0
[  281.293072]  ext4_filemap_fault+0x82/0xad
[  281.297233]  __do_fault+0x100/0x6b0
[  281.300877]  ? lock_downgrade+0x900/0x900
[  281.305039]  ? pmd_devmap_trans_unstable+0x220/0x220
[  281.310158]  ? kasan_check_read+0x11/0x20
[  281.314317]  ? do_raw_spin_unlock+0xa7/0x330
[  281.318734]  ? do_raw_spin_trylock+0x270/0x270
[  281.323360]  __handle_mm_fault+0x3ea0/0x5be0
[  281.327811]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  281.332674]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  281.337294]  ? zap_class+0x640/0x640
[  281.341019]  ? zap_class+0x640/0x640
[  281.344742]  ? __x64_sys_futex+0x53e/0x6a0
[  281.349017]  ? find_held_lock+0x36/0x1c0
[  281.353095]  ? handle_mm_fault+0x42a/0xc70
[  281.357346]  ? lock_downgrade+0x900/0x900
[  281.361508]  ? check_preemption_disabled+0x48/0x280
[  281.366564]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  281.371507]  ? kasan_check_read+0x11/0x20
[  281.375670]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.380963]  ? rcu_softirq_qs+0x20/0x20
[  281.384955]  ? trace_hardirqs_off_caller+0x310/0x310
[  281.390076]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.395628]  ? check_preemption_disabled+0x48/0x280
[  281.400664]  handle_mm_fault+0x54f/0xc70
[  281.404740]  ? __handle_mm_fault+0x5be0/0x5be0
[  281.409360]  ? find_vma+0x34/0x190
[  281.412926]  __do_page_fault+0x5e8/0xe60
[  281.416997]  ? trace_hardirqs_off+0xb8/0x310
[  281.421430]  do_page_fault+0xf2/0x7e0
[  281.425243]  ? vmalloc_sync_all+0x30/0x30
[  281.429411]  ? error_entry+0x70/0xd0
[  281.433138]  ? trace_hardirqs_off_caller+0xbb/0x310
[  281.438162]  ? trace_hardirqs_on_caller+0xc0/0x310
[  281.443104]  ? syscall_return_slowpath+0x5e0/0x5e0
[  281.448047]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.452902]  ? trace_hardirqs_on_caller+0x310/0x310
[  281.457927]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  281.463394]  ? prepare_exit_to_usermode+0x291/0x3b0
[  281.468419]  ? page_fault+0x8/0x30
[  281.471971]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  281.476912]  ? page_fault+0x8/0x30
[  281.480467]  page_fault+0x1e/0x30
[  281.483932] RIP: 0033:0x404068
[  281.487147] Code: Bad RIP value.
[  281.490521] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  281.495894] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  281.503171] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  281.510451] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  281.517728] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  281.525026] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  281.532328] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  281.532334] warn_alloc_show_mem: 1 callbacks suppressed
[  281.532341] Mem-Info:
[  281.539630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  281.545012] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  281.545012]  active_file:13 inactive_file:28 isolated_file:0
[  281.545012]  unevictable:0 dirty:1 writeback:0 unstable:0
[  281.545012]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  281.545012]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  281.545012]  free:13541 free_pcp:161 free_cma:0
[  281.547391] Call Trace:
[  281.556816] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  281.589855]  <IRQ>
[  281.592444] 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
[  281.620400]  dump_stack+0x244/0x39d
[  281.622537] lowmem_reserve[]: 0 2818 6321 6321
[  281.648780]  ? dump_stack_print_info.cold.1+0x20/0x20
[  281.652388] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  281.656982]  warn_alloc.cold.116+0xb7/0x1bd
[  281.662152] lowmem_reserve[]: 0 0 3503 3503
[  281.689777]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  281.694083] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  281.698413]  ? lock_downgrade+0x900/0x900
[  281.703238] lowmem_reserve[]: 0 0 0 0
[  281.732453]  ? trace_hardirqs_off+0xb8/0x310
[  281.736589] 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
[  281.740396]  ? trace_hardirqs_off+0xb8/0x310
[  281.744802] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  281.758332]  __alloc_pages_slowpath+0x26e8/0x2e10
[  281.762722] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  281.777943]  ? warn_alloc+0x120/0x120
[  281.782770] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  281.797247]  ? print_usage_bug+0xc0/0xc0
[  281.801037] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  281.809867]  ? warn_alloc+0x120/0x120
[  281.814126] 4984 total pagecache pages
[  281.822710]  ? warn_alloc+0x120/0x120
[  281.826500] 0 pages in swap cache
[  281.830387]  ? print_usage_bug+0xc0/0xc0
[  281.834177] Swap cache stats: add 0, delete 0, find 0/0
[  281.837627]  ? kvm_clock_read+0x18/0x30
[  281.841672] Free swap  = 0kB
[  281.847038]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  281.850995] Total swap = 0kB
[  281.854016]  ? print_usage_bug+0xc0/0xc0
[  281.859020] 1965979 pages RAM
[  281.862039]  ? __lock_acquire+0x62f/0x4c20
[  281.866086] 0 pages HighMem/MovableOnly
[  281.869198]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  281.873415] 342853 pages reserved
[  281.877391]  ? should_fail+0x22d/0xd01
[  281.882913] 0 pages cma reserved
[  281.886371]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  281.890393] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  281.893702]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.899020] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  281.905460]  ? __lock_acquire+0x62f/0x4c20
[  281.910547] syz-fuzzer cpuset=/ mems_allowed=0
[  281.920794]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  281.934692]  ? __lock_acquire+0x62f/0x4c20
[  281.938937]  ? should_fail+0x22d/0xd01
[  281.942831]  ? rcu_irq_exit+0x1a2/0x390
[  281.946828]  ? mark_held_locks+0x130/0x130
[  281.951079]  ? mark_held_locks+0x130/0x130
[  281.955330]  ? mark_held_locks+0xc7/0x130
[  281.959489]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  281.964517]  ? zap_class+0x640/0x640
[  281.968241]  ? print_usage_bug+0xc0/0xc0
[  281.972319]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  281.977869]  ? check_preemption_disabled+0x48/0x280
[  281.982909]  ? __lock_is_held+0xb5/0x140
[  281.986991]  __alloc_pages_nodemask+0xa80/0xde0
[  281.991675]  ? zap_class+0x640/0x640
[  281.995407]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  282.000449]  ? find_held_lock+0x36/0x1c0
[  282.004537]  ? ____cache_alloc_node+0x1c7/0x1e0
[  282.009219]  ? lock_downgrade+0x900/0x900
[  282.013390]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.018947]  cache_grow_begin+0xa5/0x8c0
[  282.023017]  ? do_raw_spin_unlock+0xa7/0x330
[  282.027459]  fallback_alloc+0x204/0x2e0
[  282.031450]  ____cache_alloc_node+0x1c7/0x1e0
[  282.035968]  kmem_cache_alloc_node+0xe3/0x730
[  282.040475]  ? ipv6_get_ifaddr+0x42e/0x620
[  282.044733]  __alloc_skb+0x119/0x770
[  282.048480]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.053791]  ? netdev_alloc_frag+0x1f0/0x1f0
[  282.058212]  ? lock_downgrade+0x900/0x900
[  282.062379]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.067931]  ? refcount_sub_and_test_checked+0x203/0x310
[  282.073398]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  282.078862]  ? addrconf_rs_timer+0x690/0x690
[  282.083297]  ndisc_alloc_skb+0x144/0x340
[  282.087372]  ndisc_send_rs+0x331/0x6e0
[  282.091278]  addrconf_rs_timer+0x314/0x690
[  282.095532]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.099810]  call_timer_fn+0x272/0x920
[  282.103710]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.107953]  ? process_timeout+0x40/0x40
[  282.112036]  ? __run_timers+0x7da/0xc70
[  282.116022]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.120527]  ? _raw_spin_unlock_irq+0x27/0x80
[  282.125032]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.129283]  ? lockdep_hardirqs_on+0x296/0x5b0
[  282.133877]  ? trace_hardirqs_on+0xbd/0x310
[  282.138206]  ? kasan_check_read+0x11/0x20
[  282.142366]  ? __run_timers+0x7da/0xc70
[  282.146352]  ? trace_hardirqs_off_caller+0x310/0x310
[  282.151468]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.155720]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.159986]  __run_timers+0x7e5/0xc70
[  282.163816]  ? timer_fixup_init+0x70/0x70
[  282.167977]  ? kasan_check_read+0x11/0x20
[  282.172135]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.177422]  ? rcu_softirq_qs+0x20/0x20
[  282.181410]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.186960]  ? check_preemption_disabled+0x48/0x280
[  282.191993]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  282.196784]  ? retint_kernel+0x2d/0x2d
[  282.200685]  ? trace_hardirqs_on_caller+0xc0/0x310
[  282.205628]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  282.210399]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  282.215866]  ? zap_class+0x640/0x640
[  282.219598]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.225149]  ? check_preemption_disabled+0x48/0x280
[  282.230185]  ? __lock_is_held+0xb5/0x140
[  282.234256]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.239812]  ? check_preemption_disabled+0x48/0x280
[  282.244849]  run_timer_softirq+0x52/0xb0
[  282.248920]  ? rcu_read_lock_sched_held+0x14f/0x180
[  282.253951]  __do_softirq+0x308/0xb7e
[  282.257787]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  282.262297]  ? lock_downgrade+0x900/0x900
[  282.266459]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  282.271586]  ? pvclock_read_flags+0x160/0x160
[  282.276092]  ? lapic_next_event+0x5a/0x90
[  282.280255]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.285813]  ? kvm_clock_read+0x18/0x30
[  282.289802]  ? kvm_sched_clock_read+0x9/0x20
[  282.294221]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.299790]  ? check_preemption_disabled+0x48/0x280
[  282.304829]  irq_exit+0x17f/0x1c0
[  282.308296]  smp_apic_timer_interrupt+0x1cb/0x760
[  282.313149]  ? smp_reschedule_interrupt+0x109/0x650
[  282.318176]  ? smp_call_function_single_interrupt+0x650/0x650
[  282.324068]  ? interrupt_entry+0xb5/0xc0
[  282.328143]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.333170]  ? trace_hardirqs_off_caller+0xbb/0x310
[  282.338200]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.343056]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.348081]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.353106]  ? task_prio+0x50/0x50
[  282.356657]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.362205]  ? check_preemption_disabled+0x48/0x280
[  282.367239]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.372102]  apic_timer_interrupt+0xf/0x20
[  282.376342]  </IRQ>
[  282.378592] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  282.383534] 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
[  282.402443] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  282.410158] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  282.417434] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  282.424709] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  282.431987] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  282.439263] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  282.446580]  skb_clone+0x1bb/0x500
[  282.450134]  ? skb_split+0x11e0/0x11e0
[  282.454035]  ? preempt_notifier_register+0x200/0x200
[  282.459145]  ? __switch_to_asm+0x34/0x70
[  282.463220]  ? __switch_to_asm+0x34/0x70
[  282.467292]  ? __switch_to_asm+0x40/0x70
[  282.471361]  ? __switch_to_asm+0x34/0x70
[  282.475430]  ? __switch_to_asm+0x40/0x70
[  282.479502]  ? __switch_to_asm+0x40/0x70
[  282.483599]  ? __switch_to_asm+0x34/0x70
[  282.487667]  ? __switch_to_asm+0x34/0x70
[  282.491735]  ? __switch_to_asm+0x40/0x70
[  282.495827]  ? __switch_to_asm+0x34/0x70
[  282.499906]  bpf_clone_redirect+0xb9/0x490
[  282.504160]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  282.509194]  ? __sched_text_start+0x8/0x8
[  282.513358]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  282.518130]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  282.522900]  ? find_held_lock+0x36/0x1c0
[  282.526982]  ? lock_acquire+0x1ed/0x520
[  282.530966]  ? bpf_test_run+0x3cb/0x780
[  282.534951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.540499]  ? check_preemption_disabled+0x48/0x280
[  282.545532]  ? kasan_check_read+0x11/0x20
[  282.549691]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.554978]  ? rcu_softirq_qs+0x20/0x20
[  282.558965]  ? preempt_schedule+0x4d/0x60
[  282.563124]  ? ___preempt_schedule+0x16/0x18
[  282.567553]  ? bpf_test_run+0x25d/0x780
[  282.571637]  ? netlink_diag_dump+0x2a0/0x2a0
[  282.576061]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.581613]  ? bpf_test_init.isra.10+0x70/0x100
[  282.586297]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  282.591072]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  282.595922]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  282.601468]  ? fput+0x130/0x1a0
[  282.604782]  ? __bpf_prog_get+0x9b/0x290
[  282.608860]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  282.613710]  ? bpf_prog_test_run+0x130/0x1a0
[  282.618130]  ? __x64_sys_bpf+0x3d8/0x520
[  282.622201]  ? bpf_prog_get+0x20/0x20
[  282.626033]  ? do_syscall_64+0x1b9/0x820
[  282.630106]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  282.635482]  ? syscall_return_slowpath+0x5e0/0x5e0
[  282.640427]  ? trace_hardirqs_on_caller+0x310/0x310
[  282.645457]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  282.650485]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  282.657163]  ? __switch_to_asm+0x40/0x70
[  282.661235]  ? __switch_to_asm+0x34/0x70
[  282.665313]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  282.670178]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  282.675579] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  282.675650] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  282.682520] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  282.682525] Call Trace:
[  282.682533]  <IRQ>
[  282.682553]  dump_stack+0x244/0x39d
[  282.682572]  ? dump_stack_print_info.cold.1+0x20/0x20
[  282.689128] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  282.698433]  warn_alloc.cold.116+0xb7/0x1bd
[  282.701003] syz-executor4 cpuset=syz4 mems_allowed=0
[  282.703159]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  282.736723]  ? lock_downgrade+0x900/0x900
[  282.740915]  ? trace_hardirqs_off+0xb8/0x310
[  282.745339]  ? trace_hardirqs_off+0xb8/0x310
[  282.749785]  __alloc_pages_slowpath+0x26e8/0x2e10
[  282.754669]  ? warn_alloc+0x120/0x120
[  282.758482]  ? print_usage_bug+0xc0/0xc0
[  282.762554]  ? warn_alloc+0x120/0x120
[  282.766368]  ? warn_alloc+0x120/0x120
[  282.770181]  ? print_usage_bug+0xc0/0xc0
[  282.774257]  ? print_usage_bug+0xc0/0xc0
[  282.778334]  ? __lock_acquire+0x62f/0x4c20
[  282.782589]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  282.788138]  ? should_fail+0x22d/0xd01
[  282.792040]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  282.797157]  ? __lock_acquire+0x62f/0x4c20
[  282.801408]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  282.806519]  ? __lock_acquire+0x62f/0x4c20
[  282.810784]  ? should_fail+0x22d/0xd01
[  282.814683]  ? find_held_lock+0x36/0x1c0
[  282.818941]  ? mark_held_locks+0x130/0x130
[  282.823195]  ? mark_held_locks+0x130/0x130
[  282.827436]  ? zap_class+0x640/0x640
[  282.831159]  ? zap_class+0x640/0x640
[  282.834887]  ? print_usage_bug+0xc0/0xc0
[  282.838955]  ? do_raw_spin_unlock+0xa7/0x330
[  282.843375]  ? zap_class+0x640/0x640
[  282.847101]  ? print_usage_bug+0xc0/0xc0
[  282.851173]  ? wq_watchdog_touch+0x9c/0xfe
[  282.855419]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.860969]  ? check_preemption_disabled+0x48/0x280
[  282.866004]  ? __lock_is_held+0xb5/0x140
[  282.870087]  __alloc_pages_nodemask+0xa80/0xde0
[  282.874784]  ? zap_class+0x640/0x640
[  282.878516]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  282.883560]  ? find_held_lock+0x36/0x1c0
[  282.887648]  ? ____cache_alloc_node+0x1c7/0x1e0
[  282.892331]  ? lock_downgrade+0x900/0x900
[  282.896497]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.902051]  cache_grow_begin+0xa5/0x8c0
[  282.906120]  ? do_raw_spin_unlock+0xa7/0x330
[  282.910547]  fallback_alloc+0x204/0x2e0
[  282.914540]  ____cache_alloc_node+0x1c7/0x1e0
[  282.919058]  kmem_cache_alloc_node+0xe3/0x730
[  282.923564]  ? ipv6_get_ifaddr+0x42e/0x620
[  282.927831]  __alloc_skb+0x119/0x770
[  282.931554]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  282.936937]  ? netdev_alloc_frag+0x1f0/0x1f0
[  282.941360]  ? lock_downgrade+0x900/0x900
[  282.946065]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  282.951615]  ? refcount_sub_and_test_checked+0x203/0x310
[  282.957079]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  282.962544]  ? addrconf_rs_timer+0x690/0x690
[  282.966973]  ndisc_alloc_skb+0x144/0x340
[  282.971051]  ndisc_send_rs+0x331/0x6e0
[  282.974958]  addrconf_rs_timer+0x314/0x690
[  282.979209]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.983467]  call_timer_fn+0x272/0x920
[  282.987366]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  282.991627]  ? process_timeout+0x40/0x40
[  282.995711]  ? mark_held_locks+0xc7/0x130
[  282.999875]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.004381]  ? _raw_spin_unlock_irq+0x27/0x80
[  283.008888]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.013134]  ? lockdep_hardirqs_on+0x296/0x5b0
[  283.017729]  ? trace_hardirqs_on+0xbd/0x310
[  283.022083]  ? kasan_check_read+0x11/0x20
[  283.026241]  ? __run_timers+0x7da/0xc70
[  283.030235]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.035355]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.039609]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  283.043855]  __run_timers+0x7e5/0xc70
[  283.047674]  ? timer_fixup_init+0x70/0x70
[  283.051836]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  283.056869]  ? zap_class+0x640/0x640
[  283.060600]  ? print_usage_bug+0xc0/0xc0
[  283.064679]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  283.069890]  ? find_held_lock+0x36/0x1c0
[  283.073972]  ? zap_class+0x640/0x640
[  283.077701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.083255]  ? check_preemption_disabled+0x48/0x280
[  283.088302]  ? __lock_is_held+0xb5/0x140
[  283.092380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.097934]  ? check_preemption_disabled+0x48/0x280
[  283.102968]  run_timer_softirq+0x52/0xb0
[  283.107044]  ? rcu_read_lock_sched_held+0x14f/0x180
[  283.112072]  __do_softirq+0x308/0xb7e
[  283.115888]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  283.120396]  ? lock_downgrade+0x900/0x900
[  283.124563]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  283.129689]  ? pvclock_read_flags+0x160/0x160
[  283.134203]  ? lapic_next_event+0x5a/0x90
[  283.138364]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.143921]  ? kvm_clock_read+0x18/0x30
[  283.147911]  ? kvm_sched_clock_read+0x9/0x20
[  283.152380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.157932]  ? check_preemption_disabled+0x48/0x280
[  283.162972]  irq_exit+0x17f/0x1c0
[  283.166436]  smp_apic_timer_interrupt+0x1cb/0x760
[  283.171293]  ? smp_reschedule_interrupt+0x109/0x650
[  283.176326]  ? smp_call_function_single_interrupt+0x650/0x650
[  283.182256]  ? interrupt_entry+0xb5/0xc0
[  283.186336]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.191362]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.196390]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.201244]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.206280]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.211311]  ? task_prio+0x50/0x50
[  283.214865]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.220414]  ? check_preemption_disabled+0x48/0x280
[  283.225446]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.230309]  apic_timer_interrupt+0xf/0x20
[  283.234545]  </IRQ>
[  283.236816] RIP: 0010:check_memory_region+0x121/0x1b0
[  283.242018] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  283.260926] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  283.268641] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  283.275918] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  283.283193] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  283.290474] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  283.297770] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  283.305065]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.310365]  kasan_check_read+0x11/0x20
[  283.314350]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.319467]  ? rcu_softirq_qs+0x20/0x20
[  283.323460]  rcu_is_watching+0x10/0x30
[  283.327361]  list_lru_count_one+0x362/0x450
[  283.331693]  ? list_lru_isolate_move+0x3c0/0x3c0
[  283.336459]  ? shmem_free_inode+0xd0/0xd0
[  283.340624]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.346173]  ? ubifs_shrink_count+0xc4/0x100
[  283.350600]  super_cache_count+0x153/0x2e0
[  283.354850]  do_shrink_slab+0x1b1/0xd30
[  283.358849]  ? lock_acquire+0x1ed/0x520
[  283.362849]  ? snapshot_refaults+0x290/0x290
[  283.367277]  ? lock_release+0xa00/0xa00
[  283.371278]  ? perf_trace_sched_process_exec+0x860/0x860
[  283.376771]  ? down_read_trylock+0xda/0x140
[  283.381105]  ? shrink_slab+0x207/0x8c0
[  283.385001]  ? downgrade_write+0x270/0x270
[  283.389254]  shrink_slab+0x389/0x8c0
[  283.392983]  ? shrink_active_list+0x1f00/0x1f00
[  283.397670]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  283.403314]  ? kasan_check_read+0x11/0x20
[  283.407475]  ? do_raw_spin_unlock+0xa7/0x330
[  283.411902]  ? ___preempt_schedule+0x16/0x18
[  283.416332]  ? _raw_spin_unlock+0x3f/0x50
[  283.420496]  shrink_node+0x431/0x16b0
[  283.424313]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  283.429630]  ? shrink_node_memcg+0x18f0/0x18f0
[  283.434220]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  283.438823]  ? trace_hardirqs_on+0xbd/0x310
[  283.443158]  ? vmpressure+0x271/0x340
[  283.446976]  ? do_raw_spin_trylock+0x270/0x270
[  283.451574]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  283.457121]  ? __cpuset_node_allowed+0x19b/0x660
[  283.461891]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  283.467615]  ? vmpressure+0x1a2/0x340
[  283.471436]  do_try_to_free_pages+0x3e7/0x1290
[  283.476026]  ? zap_class+0x640/0x640
[  283.479785]  ? shrink_node+0x16b0/0x16b0
[  283.483863]  ? __lock_is_held+0xb5/0x140
[  283.487953]  try_to_free_pages+0x4d0/0xb90
[  283.492202]  ? do_try_to_free_pages+0x1290/0x1290
[  283.497065]  ? lock_acquire+0x1ed/0x520
[  283.501051]  ? set_page_refcounted+0x280/0x280
[  283.505654]  ? lock_release+0xa00/0xa00
[  283.509643]  ? _raw_spin_unlock_irq+0x60/0x80
[  283.514153]  ? psi_memstall_enter+0x240/0x2b0
[  283.518658]  ? psi_memstall_tick+0x230/0x230
[  283.523088]  __alloc_pages_slowpath+0xa14/0x2e10
[  283.527883]  ? warn_alloc+0x120/0x120
[  283.531697]  ? mark_held_locks+0x130/0x130
[  283.535950]  ? find_get_entry+0xaae/0x1120
[  283.540203]  ? filemap_map_pages+0x1a20/0x1a20
[  283.544818]  ? zap_class+0x640/0x640
[  283.548550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  283.554100]  ? check_preemption_disabled+0x48/0x280
[  283.559128]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.564674]  ? should_fail+0x22d/0xd01
[  283.568576]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  283.573691]  ? zap_class+0x640/0x640
[  283.577443]  ? __lock_is_held+0xb5/0x140
[  283.581522]  ? mark_held_locks+0x130/0x130
[  283.585786]  ? lock_release+0xa00/0xa00
[  283.589793]  ? perf_trace_sched_process_exec+0x860/0x860
[  283.595266]  ? xa_load+0x2ba/0x460
[  283.598820]  ? lock_downgrade+0x900/0x900
[  283.602983]  ? __might_sleep+0x95/0x190
[  283.606973]  __alloc_pages_nodemask+0xa80/0xde0
[  283.611660]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  283.616692]  ? __page_cache_alloc+0x191/0x5c0
[  283.621199]  ? xa_load+0x2e1/0x460
[  283.624770]  ? xa_clear_mark+0x40/0x40
[  283.628671]  ? zap_class+0x640/0x640
[  283.632403]  ? zap_class+0x640/0x640
[  283.636129]  ? zap_class+0x640/0x640
[  283.639856]  ? __do_page_cache_readahead+0x663/0x810
[  283.644973]  ? find_held_lock+0x36/0x1c0
[  283.649049]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  283.654605]  alloc_pages_current+0x173/0x350
[  283.659035]  __page_cache_alloc+0x38c/0x5c0
[  283.663366]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.668310]  ? kasan_check_read+0x11/0x20
[  283.672471]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.677778]  ? generic_perform_write+0x6a0/0x6a0
[  283.682549]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.688097]  ? check_preemption_disabled+0x48/0x280
[  283.693128]  filemap_fault+0x1595/0x25f0
[  283.697217]  ? __lock_page_or_retry+0xa00/0xa00
[  283.701901]  ? mark_held_locks+0x130/0x130
[  283.706156]  ? filemap_map_pages+0xd6b/0x1a20
[  283.710665]  ? lock_downgrade+0x900/0x900
[  283.714825]  ? check_preemption_disabled+0x48/0x280
[  283.719856]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.724804]  ? kasan_check_read+0x11/0x20
[  283.728961]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.734248]  ? rcu_softirq_qs+0x20/0x20
[  283.738249]  ? filemap_map_pages+0xd92/0x1a20
[  283.742791]  ? find_get_entries_tag+0x1400/0x1400
[  283.747646]  ? find_held_lock+0x36/0x1c0
[  283.751742]  ? lock_acquire+0x1ed/0x520
[  283.755768]  ? ext4_filemap_fault+0x7a/0xad
[  283.760111]  ? lock_release+0xa00/0xa00
[  283.764098]  ? perf_trace_sched_process_exec+0x860/0x860
[  283.769560]  ? print_usage_bug+0xc0/0xc0
[  283.773649]  ? down_read+0x8d/0x120
[  283.777293]  ? ext4_filemap_fault+0x7a/0xad
[  283.781629]  ? __down_interruptible+0x700/0x700
[  283.786318]  ? find_held_lock+0x36/0x1c0
[  283.790394]  ext4_filemap_fault+0x82/0xad
[  283.794553]  __do_fault+0x100/0x6b0
[  283.798199]  ? lock_downgrade+0x900/0x900
[  283.802360]  ? pmd_devmap_trans_unstable+0x220/0x220
[  283.807480]  ? kasan_check_read+0x11/0x20
[  283.811638]  ? do_raw_spin_unlock+0xa7/0x330
[  283.816222]  ? do_raw_spin_trylock+0x270/0x270
[  283.820833]  __handle_mm_fault+0x3ea0/0x5be0
[  283.825268]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  283.830133]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  283.834738]  ? zap_class+0x640/0x640
[  283.838478]  ? zap_class+0x640/0x640
[  283.842204]  ? __x64_sys_futex+0x53e/0x6a0
[  283.846454]  ? find_held_lock+0x36/0x1c0
[  283.850539]  ? handle_mm_fault+0x42a/0xc70
[  283.854850]  ? lock_downgrade+0x900/0x900
[  283.859016]  ? check_preemption_disabled+0x48/0x280
[  283.864045]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  283.868986]  ? kasan_check_read+0x11/0x20
[  283.873149]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  283.878436]  ? rcu_softirq_qs+0x20/0x20
[  283.882423]  ? trace_hardirqs_off_caller+0x310/0x310
[  283.887539]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  283.893222]  ? check_preemption_disabled+0x48/0x280
[  283.898258]  handle_mm_fault+0x54f/0xc70
[  283.902339]  ? __handle_mm_fault+0x5be0/0x5be0
[  283.906938]  ? find_vma+0x34/0x190
[  283.910497]  __do_page_fault+0x5e8/0xe60
[  283.914569]  ? trace_hardirqs_off+0xb8/0x310
[  283.919003]  do_page_fault+0xf2/0x7e0
[  283.922822]  ? vmalloc_sync_all+0x30/0x30
[  283.926983]  ? error_entry+0x70/0xd0
[  283.930708]  ? trace_hardirqs_off_caller+0xbb/0x310
[  283.935735]  ? trace_hardirqs_on_caller+0xc0/0x310
[  283.940694]  ? syscall_return_slowpath+0x5e0/0x5e0
[  283.945633]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.950491]  ? trace_hardirqs_on_caller+0x310/0x310
[  283.955517]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  283.960983]  ? prepare_exit_to_usermode+0x291/0x3b0
[  283.966009]  ? page_fault+0x8/0x30
[  283.969567]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  283.974427]  ? page_fault+0x8/0x30
[  283.977982]  page_fault+0x1e/0x30
[  283.981444] RIP: 0033:0x404068
[  283.984664] Code: Bad RIP value.
[  283.988035] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  283.993406] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  284.000683] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  284.007962] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  284.015241] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  284.022522] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  284.029845] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  284.029850] warn_alloc_show_mem: 1 callbacks suppressed
[  284.029857] Mem-Info:
[  284.037144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  284.042523] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  284.042523]  active_file:13 inactive_file:28 isolated_file:0
[  284.042523]  unevictable:0 dirty:1 writeback:0 unstable:0
[  284.042523]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  284.042523]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  284.042523]  free:13541 free_pcp:161 free_cma:0
[  284.044904] Call Trace:
[  284.054303] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  284.087331]  <IRQ>
[  284.089912] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  284.117859]  dump_stack+0x244/0x39d
[  284.119992] lowmem_reserve[]: 0 2818 6321 6321
[  284.146105]  ? dump_stack_print_info.cold.1+0x20/0x20
[  284.149715] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  284.154309]  warn_alloc.cold.116+0xb7/0x1bd
[  284.159474] lowmem_reserve[]: 0 0 3503 3503
[  284.187068]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  284.191378] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  284.195709]  ? lock_downgrade+0x900/0x900
[  284.200532] lowmem_reserve[]: 0 0 0 0
[  284.229688]  ? trace_hardirqs_off+0xb8/0x310
[  284.233873] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  284.237686]  ? trace_hardirqs_off+0xb8/0x310
[  284.242076] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  284.255606]  __alloc_pages_slowpath+0x26e8/0x2e10
[  284.259996] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  284.275196]  ? warn_alloc+0x120/0x120
[  284.280009] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  284.294485]  ? print_usage_bug+0xc0/0xc0
[  284.298275] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  284.307109]  ? warn_alloc+0x120/0x120
[  284.311157] 4984 total pagecache pages
[  284.319732]  ? warn_alloc+0x120/0x120
[  284.323527] 0 pages in swap cache
[  284.327417]  ? print_usage_bug+0xc0/0xc0
[  284.331207] Swap cache stats: add 0, delete 0, find 0/0
[  284.334660]  ? print_usage_bug+0xc0/0xc0
[  284.338707] Free swap  = 0kB
[  284.344075]  ? __lock_acquire+0x62f/0x4c20
[  284.348124] Total swap = 0kB
[  284.351147]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.355369] 1965979 pages RAM
[  284.358390]  ? should_fail+0x22d/0xd01
[  284.363913] 0 pages HighMem/MovableOnly
[  284.367020]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.370895] 342853 pages reserved
[  284.374874]  ? __lock_acquire+0x62f/0x4c20
[  284.379960] 0 pages cma reserved
[  284.383415]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  284.387694] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  284.390997]  ? __lock_acquire+0x62f/0x4c20
[  284.391010]  ? should_fail+0x22d/0xd01
[  284.391035]  ? mark_held_locks+0x130/0x130
[  284.396194] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  284.402634]  ? mark_held_locks+0x130/0x130
[  284.406858] syz-fuzzer cpuset=/ mems_allowed=0
[  284.410774]  ? zap_class+0x640/0x640
[  284.437743]  ? zap_class+0x640/0x640
[  284.441546]  ? print_usage_bug+0xc0/0xc0
[  284.445666]  ? wq_watchdog_touch+0x9c/0xfe
[  284.449923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.455472]  ? check_preemption_disabled+0x48/0x280
[  284.460555]  ? __lock_is_held+0xb5/0x140
[  284.464635]  __alloc_pages_nodemask+0xa80/0xde0
[  284.469315]  ? zap_class+0x640/0x640
[  284.473046]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  284.478086]  ? find_held_lock+0x36/0x1c0
[  284.482174]  ? ____cache_alloc_node+0x1c7/0x1e0
[  284.486860]  ? lock_downgrade+0x900/0x900
[  284.491033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.496585]  cache_grow_begin+0xa5/0x8c0
[  284.500658]  ? do_raw_spin_unlock+0xa7/0x330
[  284.505093]  fallback_alloc+0x204/0x2e0
[  284.509087]  ____cache_alloc_node+0x1c7/0x1e0
[  284.513602]  kmem_cache_alloc_node+0xe3/0x730
[  284.518112]  ? ipv6_get_ifaddr+0x42e/0x620
[  284.522371]  __alloc_skb+0x119/0x770
[  284.526098]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.531391]  ? netdev_alloc_frag+0x1f0/0x1f0
[  284.535812]  ? lock_downgrade+0x900/0x900
[  284.539990]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.545543]  ? refcount_sub_and_test_checked+0x203/0x310
[  284.551007]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  284.556466]  ? addrconf_rs_timer+0x690/0x690
[  284.560900]  ndisc_alloc_skb+0x144/0x340
[  284.564981]  ndisc_send_rs+0x331/0x6e0
[  284.568889]  addrconf_rs_timer+0x314/0x690
[  284.573140]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.577399]  call_timer_fn+0x272/0x920
[  284.581295]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.585539]  ? process_timeout+0x40/0x40
[  284.589617]  ? __run_timers+0x7da/0xc70
[  284.593604]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.598112]  ? _raw_spin_unlock_irq+0x27/0x80
[  284.602618]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.606864]  ? lockdep_hardirqs_on+0x296/0x5b0
[  284.611463]  ? trace_hardirqs_on+0xbd/0x310
[  284.615804]  ? kasan_check_read+0x11/0x20
[  284.619960]  ? __run_timers+0x7da/0xc70
[  284.623945]  ? trace_hardirqs_off_caller+0x310/0x310
[  284.629074]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  284.633316]  __run_timers+0x7e5/0xc70
[  284.637136]  ? timer_fixup_init+0x70/0x70
[  284.641295]  ? kasan_check_read+0x11/0x20
[  284.645454]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  284.650740]  ? rcu_softirq_qs+0x20/0x20
[  284.654775]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.660332]  ? check_preemption_disabled+0x48/0x280
[  284.665363]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  284.670134]  ? retint_kernel+0x2d/0x2d
[  284.674036]  ? trace_hardirqs_on_caller+0xc0/0x310
[  284.678975]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  284.683744]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  284.689235]  ? zap_class+0x640/0x640
[  284.692968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.698517]  ? check_preemption_disabled+0x48/0x280
[  284.703556]  ? __lock_is_held+0xb5/0x140
[  284.707631]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.713177]  ? check_preemption_disabled+0x48/0x280
[  284.718212]  run_timer_softirq+0x52/0xb0
[  284.722285]  ? rcu_read_lock_sched_held+0x14f/0x180
[  284.727313]  __do_softirq+0x308/0xb7e
[  284.731125]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  284.735637]  ? lock_downgrade+0x900/0x900
[  284.739817]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  284.744939]  ? pvclock_read_flags+0x160/0x160
[  284.749449]  ? lapic_next_event+0x5a/0x90
[  284.753613]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.759167]  ? kvm_clock_read+0x18/0x30
[  284.763155]  ? kvm_sched_clock_read+0x9/0x20
[  284.767580]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  284.773130]  ? check_preemption_disabled+0x48/0x280
[  284.778169]  irq_exit+0x17f/0x1c0
[  284.781634]  smp_apic_timer_interrupt+0x1cb/0x760
[  284.786491]  ? smp_reschedule_interrupt+0x109/0x650
[  284.791519]  ? smp_call_function_single_interrupt+0x650/0x650
[  284.797411]  ? interrupt_entry+0xb5/0xc0
[  284.801491]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.806520]  ? trace_hardirqs_off_caller+0xbb/0x310
[  284.811547]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.816400]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.821434]  ? trace_hardirqs_on_caller+0x310/0x310
[  284.826462]  ? task_prio+0x50/0x50
[  284.830014]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  284.835607]  ? check_preemption_disabled+0x48/0x280
[  284.840641]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  284.845504]  apic_timer_interrupt+0xf/0x20
[  284.849742]  </IRQ>
[  284.852021] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  284.856962] 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
[  284.875870] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  284.883588] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  284.890863] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  284.898142] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  284.905418] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  284.912694] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  284.920007]  skb_clone+0x1bb/0x500
[  284.923563]  ? skb_split+0x11e0/0x11e0
[  284.927465]  ? preempt_notifier_register+0x200/0x200
[  284.932577]  ? __switch_to_asm+0x34/0x70
[  284.936650]  ? __switch_to_asm+0x34/0x70
[  284.940717]  ? __switch_to_asm+0x40/0x70
[  284.944987]  ? __switch_to_asm+0x34/0x70
[  284.949046]  ? __switch_to_asm+0x40/0x70
[  284.953119]  ? __switch_to_asm+0x40/0x70
[  284.957188]  ? __switch_to_asm+0x34/0x70
[  284.961306]  ? __switch_to_asm+0x34/0x70
[  284.965376]  ? __switch_to_asm+0x40/0x70
[  284.969447]  ? __switch_to_asm+0x34/0x70
[  284.973522]  bpf_clone_redirect+0xb9/0x490
[  284.977795]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  284.982832]  ? __sched_text_start+0x8/0x8
[  284.986994]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  284.991786]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  284.996559]  ? find_held_lock+0x36/0x1c0
[  285.000641]  ? lock_acquire+0x1ed/0x520
[  285.004625]  ? bpf_test_run+0x3cb/0x780
[  285.008614]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.014166]  ? check_preemption_disabled+0x48/0x280
[  285.019202]  ? kasan_check_read+0x11/0x20
[  285.023366]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.028654]  ? rcu_softirq_qs+0x20/0x20
[  285.032643]  ? preempt_schedule+0x4d/0x60
[  285.036821]  ? ___preempt_schedule+0x16/0x18
[  285.041247]  ? bpf_test_run+0x25d/0x780
[  285.045247]  ? netlink_diag_dump+0x2a0/0x2a0
[  285.049669]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.055220]  ? bpf_test_init.isra.10+0x70/0x100
[  285.059910]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  285.064685]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  285.069539]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  285.075089]  ? fput+0x130/0x1a0
[  285.078378]  ? __bpf_prog_get+0x9b/0x290
[  285.082455]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  285.087310]  ? bpf_prog_test_run+0x130/0x1a0
[  285.091730]  ? __x64_sys_bpf+0x3d8/0x520
[  285.095826]  ? bpf_prog_get+0x20/0x20
[  285.099655]  ? do_syscall_64+0x1b9/0x820
[  285.103728]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  285.109125]  ? syscall_return_slowpath+0x5e0/0x5e0
[  285.114070]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.119096]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  285.124127]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  285.130824]  ? __switch_to_asm+0x40/0x70
[  285.134892]  ? __switch_to_asm+0x34/0x70
[  285.138969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.143835]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  285.149225] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  285.149313] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  285.156167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  285.156172] Call Trace:
[  285.156178]  <IRQ>
[  285.156195]  dump_stack+0x244/0x39d
[  285.156215]  ? dump_stack_print_info.cold.1+0x20/0x20
[  285.162810] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  285.172073]  warn_alloc.cold.116+0xb7/0x1bd
[  285.174642] syz-executor4 cpuset=syz4 mems_allowed=0
[  285.176827]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  285.210360]  ? lock_downgrade+0x900/0x900
[  285.214527]  ? trace_hardirqs_off+0xb8/0x310
[  285.218955]  ? trace_hardirqs_off+0xb8/0x310
[  285.223380]  __alloc_pages_slowpath+0x26e8/0x2e10
[  285.228269]  ? warn_alloc+0x120/0x120
[  285.232084]  ? print_usage_bug+0xc0/0xc0
[  285.236159]  ? warn_alloc+0x120/0x120
[  285.239978]  ? warn_alloc+0x120/0x120
[  285.243805]  ? print_usage_bug+0xc0/0xc0
[  285.247887]  ? print_usage_bug+0xc0/0xc0
[  285.251964]  ? __lock_acquire+0x62f/0x4c20
[  285.256213]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.261860]  ? should_fail+0x22d/0xd01
[  285.265781]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  285.270898]  ? __lock_acquire+0x62f/0x4c20
[  285.275148]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  285.280257]  ? __lock_acquire+0x62f/0x4c20
[  285.284507]  ? should_fail+0x22d/0xd01
[  285.288403]  ? find_held_lock+0x36/0x1c0
[  285.292482]  ? mark_held_locks+0x130/0x130
[  285.296734]  ? mark_held_locks+0x130/0x130
[  285.300996]  ? zap_class+0x640/0x640
[  285.304721]  ? zap_class+0x640/0x640
[  285.308469]  ? print_usage_bug+0xc0/0xc0
[  285.312538]  ? do_raw_spin_unlock+0xa7/0x330
[  285.316960]  ? zap_class+0x640/0x640
[  285.320688]  ? print_usage_bug+0xc0/0xc0
[  285.324777]  ? wq_watchdog_touch+0x9c/0xfe
[  285.329028]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.334581]  ? check_preemption_disabled+0x48/0x280
[  285.339616]  ? __lock_is_held+0xb5/0x140
[  285.343693]  __alloc_pages_nodemask+0xa80/0xde0
[  285.348373]  ? zap_class+0x640/0x640
[  285.352105]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  285.357144]  ? find_held_lock+0x36/0x1c0
[  285.361256]  ? ____cache_alloc_node+0x1c7/0x1e0
[  285.365945]  ? lock_downgrade+0x900/0x900
[  285.370110]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.375665]  cache_grow_begin+0xa5/0x8c0
[  285.379735]  ? do_raw_spin_unlock+0xa7/0x330
[  285.384180]  fallback_alloc+0x204/0x2e0
[  285.388173]  ____cache_alloc_node+0x1c7/0x1e0
[  285.392684]  kmem_cache_alloc_node+0xe3/0x730
[  285.397195]  ? ipv6_get_ifaddr+0x42e/0x620
[  285.401452]  __alloc_skb+0x119/0x770
[  285.405175]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.410468]  ? netdev_alloc_frag+0x1f0/0x1f0
[  285.414891]  ? lock_downgrade+0x900/0x900
[  285.419058]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.424608]  ? refcount_sub_and_test_checked+0x203/0x310
[  285.430077]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  285.435541]  ? addrconf_rs_timer+0x690/0x690
[  285.439971]  ndisc_alloc_skb+0x144/0x340
[  285.444047]  ndisc_send_rs+0x331/0x6e0
[  285.447953]  addrconf_rs_timer+0x314/0x690
[  285.452207]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.456463]  call_timer_fn+0x272/0x920
[  285.460362]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.464606]  ? process_timeout+0x40/0x40
[  285.468685]  ? mark_held_locks+0xc7/0x130
[  285.472852]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.477355]  ? _raw_spin_unlock_irq+0x27/0x80
[  285.481864]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.486110]  ? lockdep_hardirqs_on+0x296/0x5b0
[  285.490706]  ? trace_hardirqs_on+0xbd/0x310
[  285.495038]  ? kasan_check_read+0x11/0x20
[  285.499200]  ? __run_timers+0x7da/0xc70
[  285.503190]  ? trace_hardirqs_off_caller+0x310/0x310
[  285.508311]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.512565]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  285.516824]  __run_timers+0x7e5/0xc70
[  285.520648]  ? timer_fixup_init+0x70/0x70
[  285.524814]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  285.529843]  ? zap_class+0x640/0x640
[  285.533570]  ? print_usage_bug+0xc0/0xc0
[  285.537648]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  285.542860]  ? find_held_lock+0x36/0x1c0
[  285.546940]  ? zap_class+0x640/0x640
[  285.550671]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.556218]  ? check_preemption_disabled+0x48/0x280
[  285.561253]  ? __lock_is_held+0xb5/0x140
[  285.565332]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.570884]  ? check_preemption_disabled+0x48/0x280
[  285.575917]  run_timer_softirq+0x52/0xb0
[  285.579992]  ? rcu_read_lock_sched_held+0x14f/0x180
[  285.585027]  __do_softirq+0x308/0xb7e
[  285.588850]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  285.593355]  ? lock_downgrade+0x900/0x900
[  285.597516]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  285.602637]  ? pvclock_read_flags+0x160/0x160
[  285.607145]  ? lapic_next_event+0x5a/0x90
[  285.611309]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.616868]  ? kvm_clock_read+0x18/0x30
[  285.620861]  ? kvm_sched_clock_read+0x9/0x20
[  285.625286]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.630839]  ? check_preemption_disabled+0x48/0x280
[  285.635876]  irq_exit+0x17f/0x1c0
[  285.639342]  smp_apic_timer_interrupt+0x1cb/0x760
[  285.644193]  ? smp_reschedule_interrupt+0x109/0x650
[  285.649220]  ? smp_call_function_single_interrupt+0x650/0x650
[  285.655113]  ? interrupt_entry+0xb5/0xc0
[  285.659187]  ? trace_hardirqs_off_caller+0xbb/0x310
[  285.664212]  ? trace_hardirqs_off_caller+0xbb/0x310
[  285.669245]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.674108]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.679138]  ? trace_hardirqs_on_caller+0x310/0x310
[  285.684167]  ? task_prio+0x50/0x50
[  285.687719]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  285.693288]  ? check_preemption_disabled+0x48/0x280
[  285.698324]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  285.703187]  apic_timer_interrupt+0xf/0x20
[  285.707431]  </IRQ>
[  285.709685] RIP: 0010:check_memory_region+0x121/0x1b0
[  285.714889] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  285.733815] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  285.741532] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  285.748813] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  285.756093] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  285.763374] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  285.770657] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  285.777955]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.783270]  kasan_check_read+0x11/0x20
[  285.787254]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  285.792374]  ? rcu_softirq_qs+0x20/0x20
[  285.796369]  rcu_is_watching+0x10/0x30
[  285.800275]  list_lru_count_one+0x362/0x450
[  285.804608]  ? list_lru_isolate_move+0x3c0/0x3c0
[  285.809372]  ? shmem_free_inode+0xd0/0xd0
[  285.813740]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  285.819335]  ? ubifs_shrink_count+0xc4/0x100
[  285.823808]  super_cache_count+0x153/0x2e0
[  285.828059]  do_shrink_slab+0x1b1/0xd30
[  285.832053]  ? lock_acquire+0x1ed/0x520
[  285.836047]  ? snapshot_refaults+0x290/0x290
[  285.840467]  ? lock_release+0xa00/0xa00
[  285.844458]  ? perf_trace_sched_process_exec+0x860/0x860
[  285.849930]  ? down_read_trylock+0xda/0x140
[  285.854267]  ? shrink_slab+0x207/0x8c0
[  285.858169]  ? downgrade_write+0x270/0x270
[  285.862427]  shrink_slab+0x389/0x8c0
[  285.866153]  ? shrink_active_list+0x1f00/0x1f00
[  285.870848]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  285.876490]  ? kasan_check_read+0x11/0x20
[  285.880652]  ? do_raw_spin_unlock+0xa7/0x330
[  285.885079]  ? ___preempt_schedule+0x16/0x18
[  285.889600]  ? _raw_spin_unlock+0x3f/0x50
[  285.893784]  shrink_node+0x431/0x16b0
[  285.897603]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  285.902918]  ? shrink_node_memcg+0x18f0/0x18f0
[  285.907508]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  285.912104]  ? trace_hardirqs_on+0xbd/0x310
[  285.916458]  ? vmpressure+0x271/0x340
[  285.920278]  ? do_raw_spin_trylock+0x270/0x270
[  285.924880]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  285.930429]  ? __cpuset_node_allowed+0x19b/0x660
[  285.935374]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  285.941092]  ? vmpressure+0x1a2/0x340
[  285.944917]  do_try_to_free_pages+0x3e7/0x1290
[  285.949510]  ? zap_class+0x640/0x640
[  285.953250]  ? shrink_node+0x16b0/0x16b0
[  285.957328]  ? __lock_is_held+0xb5/0x140
[  285.961417]  try_to_free_pages+0x4d0/0xb90
[  285.965667]  ? do_try_to_free_pages+0x1290/0x1290
[  285.970531]  ? lock_acquire+0x1ed/0x520
[  285.974521]  ? set_page_refcounted+0x280/0x280
[  285.979121]  ? lock_release+0xa00/0xa00
[  285.983109]  ? _raw_spin_unlock_irq+0x60/0x80
[  285.987614]  ? psi_memstall_enter+0x240/0x2b0
[  285.992206]  ? psi_memstall_tick+0x230/0x230
[  285.996639]  __alloc_pages_slowpath+0xa14/0x2e10
[  286.001437]  ? warn_alloc+0x120/0x120
[  286.005253]  ? mark_held_locks+0x130/0x130
[  286.009509]  ? find_get_entry+0xaae/0x1120
[  286.013781]  ? filemap_map_pages+0x1a20/0x1a20
[  286.018386]  ? zap_class+0x640/0x640
[  286.022119]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.027669]  ? check_preemption_disabled+0x48/0x280
[  286.032696]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.038244]  ? should_fail+0x22d/0xd01
[  286.042150]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.047269]  ? zap_class+0x640/0x640
[  286.051027]  ? __lock_is_held+0xb5/0x140
[  286.055106]  ? mark_held_locks+0x130/0x130
[  286.059359]  ? lock_release+0xa00/0xa00
[  286.063348]  ? perf_trace_sched_process_exec+0x860/0x860
[  286.068819]  ? xa_load+0x2ba/0x460
[  286.072376]  ? lock_downgrade+0x900/0x900
[  286.076541]  ? __might_sleep+0x95/0x190
[  286.080532]  __alloc_pages_nodemask+0xa80/0xde0
[  286.085224]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  286.090255]  ? __page_cache_alloc+0x191/0x5c0
[  286.094785]  ? xa_load+0x2e1/0x460
[  286.098343]  ? xa_clear_mark+0x40/0x40
[  286.102306]  ? zap_class+0x640/0x640
[  286.106042]  ? zap_class+0x640/0x640
[  286.109785]  ? zap_class+0x640/0x640
[  286.113515]  ? __do_page_cache_readahead+0x663/0x810
[  286.118633]  ? find_held_lock+0x36/0x1c0
[  286.122709]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  286.128270]  alloc_pages_current+0x173/0x350
[  286.132699]  __page_cache_alloc+0x38c/0x5c0
[  286.137029]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.141970]  ? kasan_check_read+0x11/0x20
[  286.146128]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.151417]  ? generic_perform_write+0x6a0/0x6a0
[  286.156184]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.161737]  ? check_preemption_disabled+0x48/0x280
[  286.166810]  filemap_fault+0x1595/0x25f0
[  286.170897]  ? __lock_page_or_retry+0xa00/0xa00
[  286.175579]  ? mark_held_locks+0x130/0x130
[  286.179837]  ? filemap_map_pages+0xd6b/0x1a20
[  286.184350]  ? lock_downgrade+0x900/0x900
[  286.188512]  ? check_preemption_disabled+0x48/0x280
[  286.193539]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.198480]  ? kasan_check_read+0x11/0x20
[  286.202638]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.207933]  ? rcu_softirq_qs+0x20/0x20
[  286.211933]  ? filemap_map_pages+0xd92/0x1a20
[  286.216456]  ? find_get_entries_tag+0x1400/0x1400
[  286.221311]  ? find_held_lock+0x36/0x1c0
[  286.225408]  ? lock_acquire+0x1ed/0x520
[  286.229395]  ? ext4_filemap_fault+0x7a/0xad
[  286.233733]  ? lock_release+0xa00/0xa00
[  286.237735]  ? perf_trace_sched_process_exec+0x860/0x860
[  286.243216]  ? print_usage_bug+0xc0/0xc0
[  286.247306]  ? down_read+0x8d/0x120
[  286.250945]  ? ext4_filemap_fault+0x7a/0xad
[  286.255283]  ? __down_interruptible+0x700/0x700
[  286.259971]  ? find_held_lock+0x36/0x1c0
[  286.264051]  ext4_filemap_fault+0x82/0xad
[  286.268217]  __do_fault+0x100/0x6b0
[  286.271859]  ? lock_downgrade+0x900/0x900
[  286.276024]  ? pmd_devmap_trans_unstable+0x220/0x220
[  286.281143]  ? kasan_check_read+0x11/0x20
[  286.285310]  ? do_raw_spin_unlock+0xa7/0x330
[  286.289820]  ? do_raw_spin_trylock+0x270/0x270
[  286.294428]  __handle_mm_fault+0x3ea0/0x5be0
[  286.298863]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  286.303728]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  286.308355]  ? zap_class+0x640/0x640
[  286.312083]  ? zap_class+0x640/0x640
[  286.315810]  ? __x64_sys_futex+0x53e/0x6a0
[  286.320063]  ? find_held_lock+0x36/0x1c0
[  286.324148]  ? handle_mm_fault+0x42a/0xc70
[  286.328398]  ? lock_downgrade+0x900/0x900
[  286.332558]  ? check_preemption_disabled+0x48/0x280
[  286.337588]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  286.342529]  ? kasan_check_read+0x11/0x20
[  286.346686]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.351975]  ? rcu_softirq_qs+0x20/0x20
[  286.355963]  ? trace_hardirqs_off_caller+0x310/0x310
[  286.361078]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.366627]  ? check_preemption_disabled+0x48/0x280
[  286.371665]  handle_mm_fault+0x54f/0xc70
[  286.375739]  ? __handle_mm_fault+0x5be0/0x5be0
[  286.380356]  ? find_vma+0x34/0x190
[  286.383918]  __do_page_fault+0x5e8/0xe60
[  286.387992]  ? trace_hardirqs_off+0xb8/0x310
[  286.392425]  do_page_fault+0xf2/0x7e0
[  286.396240]  ? vmalloc_sync_all+0x30/0x30
[  286.400401]  ? error_entry+0x70/0xd0
[  286.404126]  ? trace_hardirqs_off_caller+0xbb/0x310
[  286.409151]  ? trace_hardirqs_on_caller+0xc0/0x310
[  286.414092]  ? syscall_return_slowpath+0x5e0/0x5e0
[  286.419036]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.423891]  ? trace_hardirqs_on_caller+0x310/0x310
[  286.428917]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  286.434384]  ? prepare_exit_to_usermode+0x291/0x3b0
[  286.439410]  ? page_fault+0x8/0x30
[  286.442969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  286.447828]  ? page_fault+0x8/0x30
[  286.451380]  page_fault+0x1e/0x30
[  286.454842] RIP: 0033:0x404068
[  286.458055] Code: Bad RIP value.
[  286.461429] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  286.466804] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  286.474080] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  286.481356] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  286.488633] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  286.495913] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  286.503216] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  286.503222] warn_alloc_show_mem: 1 callbacks suppressed
[  286.503229] Mem-Info:
[  286.510513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  286.515889] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  286.515889]  active_file:13 inactive_file:28 isolated_file:0
[  286.515889]  unevictable:0 dirty:1 writeback:0 unstable:0
[  286.515889]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  286.515889]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  286.515889]  free:13541 free_pcp:161 free_cma:0
[  286.518265] Call Trace:
[  286.518274]  <IRQ>
[  286.527673] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  286.560705]  dump_stack+0x244/0x39d
[  286.563281] 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
[  286.565438]  ? dump_stack_print_info.cold.1+0x20/0x20
[  286.593352] lowmem_reserve[]: 0 2818 6321 6321
[  286.596994]  warn_alloc.cold.116+0xb7/0x1bd
[  286.623079] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  286.628271]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  286.632848] lowmem_reserve[]: 0 0 3503 3503
[  286.637174]  ? lock_downgrade+0x900/0x900
[  286.664744] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  286.669619]  ? trace_hardirqs_off+0xb8/0x310
[  286.673919] lowmem_reserve[]: 0 0 0 0
[  286.678078]  ? trace_hardirqs_off+0xb8/0x310
[  286.707211] 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
[  286.711628]  __alloc_pages_slowpath+0x26e8/0x2e10
[  286.715407] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  286.719843]  ? warn_alloc+0x120/0x120
[  286.733330] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  286.738176]  ? print_usage_bug+0xc0/0xc0
[  286.753340] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  286.757140]  ? warn_alloc+0x120/0x120
[  286.771606] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  286.775669]  ? warn_alloc+0x120/0x120
[  286.784491] 4984 total pagecache pages
[  286.788297]  ? print_usage_bug+0xc0/0xc0
[  286.796866] 0 pages in swap cache
[  286.800665]  ? kvm_clock_read+0x18/0x30
[  286.804537] Swap cache stats: add 0, delete 0, find 0/0
[  286.808613]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  286.812054] Free swap  = 0kB
[  286.816030]  ? print_usage_bug+0xc0/0xc0
[  286.821381] Total swap = 0kB
[  286.826401]  ? __lock_acquire+0x62f/0x4c20
[  286.829403] 1965979 pages RAM
[  286.833466]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  286.836472] 0 pages HighMem/MovableOnly
[  286.840708]  ? should_fail+0x22d/0xd01
[  286.843819] 342853 pages reserved
[  286.849361]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  286.853319] 0 pages cma reserved
[  286.857211]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.860720] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  286.865937]  ? __lock_acquire+0x62f/0x4c20
[  286.869354] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  286.874402]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  286.880882] syz-fuzzer cpuset=/ mems_allowed=0
[  286.885118]  ? __lock_acquire+0x62f/0x4c20
[  286.909239]  ? should_fail+0x22d/0xd01
[  286.913135]  ? rcu_irq_exit+0x1a2/0x390
[  286.917129]  ? mark_held_locks+0x130/0x130
[  286.921380]  ? mark_held_locks+0x130/0x130
[  286.925631]  ? mark_held_locks+0xc7/0x130
[  286.929808]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  286.934843]  ? zap_class+0x640/0x640
[  286.938568]  ? print_usage_bug+0xc0/0xc0
[  286.942645]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.948408]  ? check_preemption_disabled+0x48/0x280
[  286.953445]  ? __lock_is_held+0xb5/0x140
[  286.957522]  __alloc_pages_nodemask+0xa80/0xde0
[  286.962203]  ? zap_class+0x640/0x640
[  286.965932]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  286.970969]  ? find_held_lock+0x36/0x1c0
[  286.975050]  ? ____cache_alloc_node+0x1c7/0x1e0
[  286.979734]  ? lock_downgrade+0x900/0x900
[  286.983927]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  286.989480]  cache_grow_begin+0xa5/0x8c0
[  286.993550]  ? do_raw_spin_unlock+0xa7/0x330
[  286.997976]  fallback_alloc+0x204/0x2e0
[  287.001969]  ____cache_alloc_node+0x1c7/0x1e0
[  287.006496]  kmem_cache_alloc_node+0xe3/0x730
[  287.011004]  ? ipv6_get_ifaddr+0x42e/0x620
[  287.015262]  __alloc_skb+0x119/0x770
[  287.018983]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.024275]  ? netdev_alloc_frag+0x1f0/0x1f0
[  287.028700]  ? lock_downgrade+0x900/0x900
[  287.032869]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.038419]  ? refcount_sub_and_test_checked+0x203/0x310
[  287.043886]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  287.049350]  ? addrconf_rs_timer+0x690/0x690
[  287.053807]  ndisc_alloc_skb+0x144/0x340
[  287.057931]  ndisc_send_rs+0x331/0x6e0
[  287.061838]  addrconf_rs_timer+0x314/0x690
[  287.066091]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.071613]  call_timer_fn+0x272/0x920
[  287.075509]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.079776]  ? process_timeout+0x40/0x40
[  287.083861]  ? __run_timers+0x7da/0xc70
[  287.087848]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.092352]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.096855]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.101101]  ? lockdep_hardirqs_on+0x296/0x5b0
[  287.105697]  ? trace_hardirqs_on+0xbd/0x310
[  287.110026]  ? kasan_check_read+0x11/0x20
[  287.114187]  ? __run_timers+0x7da/0xc70
[  287.118177]  ? trace_hardirqs_off_caller+0x310/0x310
[  287.123294]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.127546]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.131802]  __run_timers+0x7e5/0xc70
[  287.135622]  ? timer_fixup_init+0x70/0x70
[  287.139804]  ? kasan_check_read+0x11/0x20
[  287.143967]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.149252]  ? rcu_softirq_qs+0x20/0x20
[  287.153243]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.158811]  ? check_preemption_disabled+0x48/0x280
[  287.163844]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  287.168615]  ? retint_kernel+0x2d/0x2d
[  287.172514]  ? trace_hardirqs_on_caller+0xc0/0x310
[  287.177456]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  287.182286]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  287.187775]  ? zap_class+0x640/0x640
[  287.191514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.197063]  ? check_preemption_disabled+0x48/0x280
[  287.202100]  ? __lock_is_held+0xb5/0x140
[  287.206173]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.211721]  ? check_preemption_disabled+0x48/0x280
[  287.216794]  run_timer_softirq+0x52/0xb0
[  287.220870]  ? rcu_read_lock_sched_held+0x14f/0x180
[  287.225900]  __do_softirq+0x308/0xb7e
[  287.229719]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  287.234303]  ? lock_downgrade+0x900/0x900
[  287.238467]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  287.243588]  ? pvclock_read_flags+0x160/0x160
[  287.248097]  ? lapic_next_event+0x5a/0x90
[  287.252257]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.257815]  ? kvm_clock_read+0x18/0x30
[  287.261806]  ? kvm_sched_clock_read+0x9/0x20
[  287.266227]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.271796]  ? check_preemption_disabled+0x48/0x280
[  287.276838]  irq_exit+0x17f/0x1c0
[  287.280303]  smp_apic_timer_interrupt+0x1cb/0x760
[  287.285157]  ? smp_reschedule_interrupt+0x109/0x650
[  287.290185]  ? smp_call_function_single_interrupt+0x650/0x650
[  287.296079]  ? interrupt_entry+0xb5/0xc0
[  287.300152]  ? trace_hardirqs_off_caller+0xbb/0x310
[  287.305181]  ? trace_hardirqs_off_caller+0xbb/0x310
[  287.310206]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.315059]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.320083]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.325113]  ? task_prio+0x50/0x50
[  287.328665]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.334215]  ? check_preemption_disabled+0x48/0x280
[  287.339249]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.344114]  apic_timer_interrupt+0xf/0x20
[  287.348351]  </IRQ>
[  287.350605] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  287.355548] 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
[  287.374455] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  287.382172] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  287.389449] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  287.396729] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  287.404030] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  287.411314] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  287.418627]  skb_clone+0x1bb/0x500
[  287.422184]  ? skb_split+0x11e0/0x11e0
[  287.426085]  ? preempt_notifier_register+0x200/0x200
[  287.431195]  ? __switch_to_asm+0x34/0x70
[  287.435352]  ? __switch_to_asm+0x34/0x70
[  287.439420]  ? __switch_to_asm+0x40/0x70
[  287.443490]  ? __switch_to_asm+0x34/0x70
[  287.447559]  ? __switch_to_asm+0x40/0x70
[  287.451630]  ? __switch_to_asm+0x40/0x70
[  287.455703]  ? __switch_to_asm+0x34/0x70
[  287.459791]  ? __switch_to_asm+0x34/0x70
[  287.463861]  ? __switch_to_asm+0x40/0x70
[  287.467928]  ? __switch_to_asm+0x34/0x70
[  287.472008]  bpf_clone_redirect+0xb9/0x490
[  287.476262]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  287.481296]  ? __sched_text_start+0x8/0x8
[  287.485459]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  287.490230]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  287.495008]  ? find_held_lock+0x36/0x1c0
[  287.499090]  ? lock_acquire+0x1ed/0x520
[  287.503080]  ? bpf_test_run+0x3cb/0x780
[  287.507066]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.512617]  ? check_preemption_disabled+0x48/0x280
[  287.517651]  ? kasan_check_read+0x11/0x20
[  287.521815]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.527103]  ? rcu_softirq_qs+0x20/0x20
[  287.531089]  ? preempt_schedule+0x4d/0x60
[  287.535261]  ? ___preempt_schedule+0x16/0x18
[  287.539688]  ? bpf_test_run+0x25d/0x780
[  287.543683]  ? netlink_diag_dump+0x2a0/0x2a0
[  287.548105]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.553656]  ? bpf_test_init.isra.10+0x70/0x100
[  287.558343]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  287.563120]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  287.567975]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  287.573527]  ? fput+0x130/0x1a0
[  287.576823]  ? __bpf_prog_get+0x9b/0x290
[  287.580897]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  287.585748]  ? bpf_prog_test_run+0x130/0x1a0
[  287.590281]  ? __x64_sys_bpf+0x3d8/0x520
[  287.594356]  ? bpf_prog_get+0x20/0x20
[  287.598185]  ? do_syscall_64+0x1b9/0x820
[  287.602254]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  287.607631]  ? syscall_return_slowpath+0x5e0/0x5e0
[  287.612575]  ? trace_hardirqs_on_caller+0x310/0x310
[  287.617602]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  287.622632]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  287.629311]  ? __switch_to_asm+0x40/0x70
[  287.633379]  ? __switch_to_asm+0x34/0x70
[  287.637453]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  287.642313]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  287.647703] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  287.647799] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  287.654661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  287.654666] Call Trace:
[  287.654673]  <IRQ>
[  287.654691]  dump_stack+0x244/0x39d
[  287.654710]  ? dump_stack_print_info.cold.1+0x20/0x20
[  287.661281] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  287.670564]  warn_alloc.cold.116+0xb7/0x1bd
[  287.673128] syz-executor4 cpuset=syz4 mems_allowed=0
[  287.675298]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  287.708894]  ? lock_downgrade+0x900/0x900
[  287.713061]  ? trace_hardirqs_off+0xb8/0x310
[  287.717491]  ? trace_hardirqs_off+0xb8/0x310
[  287.721972]  __alloc_pages_slowpath+0x26e8/0x2e10
[  287.726861]  ? warn_alloc+0x120/0x120
[  287.730680]  ? print_usage_bug+0xc0/0xc0
[  287.734771]  ? warn_alloc+0x120/0x120
[  287.738589]  ? warn_alloc+0x120/0x120
[  287.742401]  ? print_usage_bug+0xc0/0xc0
[  287.746477]  ? print_usage_bug+0xc0/0xc0
[  287.750553]  ? __lock_acquire+0x62f/0x4c20
[  287.754814]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  287.760363]  ? should_fail+0x22d/0xd01
[  287.764271]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.769390]  ? __lock_acquire+0x62f/0x4c20
[  287.773642]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  287.778773]  ? __lock_acquire+0x62f/0x4c20
[  287.783024]  ? should_fail+0x22d/0xd01
[  287.786926]  ? find_held_lock+0x36/0x1c0
[  287.791007]  ? mark_held_locks+0x130/0x130
[  287.795256]  ? mark_held_locks+0x130/0x130
[  287.799504]  ? zap_class+0x640/0x640
[  287.803231]  ? zap_class+0x640/0x640
[  287.806965]  ? print_usage_bug+0xc0/0xc0
[  287.811038]  ? do_raw_spin_unlock+0xa7/0x330
[  287.815730]  ? zap_class+0x640/0x640
[  287.819477]  ? print_usage_bug+0xc0/0xc0
[  287.823551]  ? wq_watchdog_touch+0x9c/0xfe
[  287.827808]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.833357]  ? check_preemption_disabled+0x48/0x280
[  287.838393]  ? __lock_is_held+0xb5/0x140
[  287.842471]  __alloc_pages_nodemask+0xa80/0xde0
[  287.847153]  ? zap_class+0x640/0x640
[  287.850887]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  287.855928]  ? find_held_lock+0x36/0x1c0
[  287.860010]  ? ____cache_alloc_node+0x1c7/0x1e0
[  287.864692]  ? lock_downgrade+0x900/0x900
[  287.868860]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.874412]  cache_grow_begin+0xa5/0x8c0
[  287.878488]  ? do_raw_spin_unlock+0xa7/0x330
[  287.882915]  fallback_alloc+0x204/0x2e0
[  287.886908]  ____cache_alloc_node+0x1c7/0x1e0
[  287.891425]  kmem_cache_alloc_node+0xe3/0x730
[  287.895934]  ? ipv6_get_ifaddr+0x42e/0x620
[  287.900189]  __alloc_skb+0x119/0x770
[  287.903915]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  287.909383]  ? netdev_alloc_frag+0x1f0/0x1f0
[  287.913810]  ? lock_downgrade+0x900/0x900
[  287.917976]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  287.923524]  ? refcount_sub_and_test_checked+0x203/0x310
[  287.928992]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  287.934453]  ? addrconf_rs_timer+0x690/0x690
[  287.938887]  ndisc_alloc_skb+0x144/0x340
[  287.942976]  ndisc_send_rs+0x331/0x6e0
[  287.946884]  addrconf_rs_timer+0x314/0x690
[  287.951139]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.955398]  call_timer_fn+0x272/0x920
[  287.959295]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.963538]  ? process_timeout+0x40/0x40
[  287.967622]  ? mark_held_locks+0xc7/0x130
[  287.971804]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.976308]  ? _raw_spin_unlock_irq+0x27/0x80
[  287.980812]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  287.985059]  ? lockdep_hardirqs_on+0x296/0x5b0
[  287.989657]  ? trace_hardirqs_on+0xbd/0x310
[  287.993994]  ? kasan_check_read+0x11/0x20
[  287.998150]  ? __run_timers+0x7da/0xc70
[  288.002141]  ? trace_hardirqs_off_caller+0x310/0x310
[  288.007257]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.011516]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  288.015782]  __run_timers+0x7e5/0xc70
[  288.019608]  ? timer_fixup_init+0x70/0x70
[  288.023788]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  288.028821]  ? zap_class+0x640/0x640
[  288.032550]  ? print_usage_bug+0xc0/0xc0
[  288.036624]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  288.041836]  ? find_held_lock+0x36/0x1c0
[  288.045912]  ? zap_class+0x640/0x640
[  288.049642]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.055192]  ? check_preemption_disabled+0x48/0x280
[  288.060228]  ? __lock_is_held+0xb5/0x140
[  288.064303]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.069858]  ? check_preemption_disabled+0x48/0x280
[  288.074890]  run_timer_softirq+0x52/0xb0
[  288.078962]  ? rcu_read_lock_sched_held+0x14f/0x180
[  288.083992]  __do_softirq+0x308/0xb7e
[  288.087812]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  288.092318]  ? lock_downgrade+0x900/0x900
[  288.096478]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  288.101605]  ? pvclock_read_flags+0x160/0x160
[  288.106118]  ? lapic_next_event+0x5a/0x90
[  288.110284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.115840]  ? kvm_clock_read+0x18/0x30
[  288.119827]  ? kvm_sched_clock_read+0x9/0x20
[  288.124248]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.129813]  ? check_preemption_disabled+0x48/0x280
[  288.134852]  irq_exit+0x17f/0x1c0
[  288.138321]  smp_apic_timer_interrupt+0x1cb/0x760
[  288.143175]  ? smp_reschedule_interrupt+0x109/0x650
[  288.148202]  ? smp_call_function_single_interrupt+0x650/0x650
[  288.154096]  ? interrupt_entry+0xb5/0xc0
[  288.158174]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.163200]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.168230]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.173090]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.178116]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.183143]  ? task_prio+0x50/0x50
[  288.186700]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.192251]  ? check_preemption_disabled+0x48/0x280
[  288.197293]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.202156]  apic_timer_interrupt+0xf/0x20
[  288.206397]  </IRQ>
[  288.208652] RIP: 0010:check_memory_region+0x121/0x1b0
[  288.213858] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  288.232785] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  288.240504] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  288.247812] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  288.255090] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  288.262371] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  288.269646] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  288.276942]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.282243]  kasan_check_read+0x11/0x20
[  288.286232]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.291349]  ? rcu_softirq_qs+0x20/0x20
[  288.295347]  rcu_is_watching+0x10/0x30
[  288.299250]  list_lru_count_one+0x362/0x450
[  288.303592]  ? list_lru_isolate_move+0x3c0/0x3c0
[  288.308358]  ? shmem_free_inode+0xd0/0xd0
[  288.312519]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.318067]  ? ubifs_shrink_count+0xc4/0x100
[  288.322496]  super_cache_count+0x153/0x2e0
[  288.326746]  do_shrink_slab+0x1b1/0xd30
[  288.330783]  ? lock_acquire+0x1ed/0x520
[  288.334794]  ? snapshot_refaults+0x290/0x290
[  288.339218]  ? lock_release+0xa00/0xa00
[  288.343208]  ? perf_trace_sched_process_exec+0x860/0x860
[  288.348683]  ? down_read_trylock+0xda/0x140
[  288.353016]  ? shrink_slab+0x207/0x8c0
[  288.356917]  ? downgrade_write+0x270/0x270
[  288.361178]  shrink_slab+0x389/0x8c0
[  288.364904]  ? shrink_active_list+0x1f00/0x1f00
[  288.369591]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  288.375235]  ? kasan_check_read+0x11/0x20
[  288.379398]  ? do_raw_spin_unlock+0xa7/0x330
[  288.383827]  ? ___preempt_schedule+0x16/0x18
[  288.388255]  ? _raw_spin_unlock+0x3f/0x50
[  288.392428]  shrink_node+0x431/0x16b0
[  288.396240]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  288.401557]  ? shrink_node_memcg+0x18f0/0x18f0
[  288.406151]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  288.410771]  ? trace_hardirqs_on+0xbd/0x310
[  288.415109]  ? vmpressure+0x271/0x340
[  288.418927]  ? do_raw_spin_trylock+0x270/0x270
[  288.423529]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  288.429078]  ? __cpuset_node_allowed+0x19b/0x660
[  288.433854]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  288.439579]  ? vmpressure+0x1a2/0x340
[  288.443417]  do_try_to_free_pages+0x3e7/0x1290
[  288.448009]  ? zap_class+0x640/0x640
[  288.451750]  ? shrink_node+0x16b0/0x16b0
[  288.455851]  ? __lock_is_held+0xb5/0x140
[  288.459942]  try_to_free_pages+0x4d0/0xb90
[  288.464194]  ? do_try_to_free_pages+0x1290/0x1290
[  288.469059]  ? lock_acquire+0x1ed/0x520
[  288.473047]  ? set_page_refcounted+0x280/0x280
[  288.477649]  ? lock_release+0xa00/0xa00
[  288.481634]  ? _raw_spin_unlock_irq+0x60/0x80
[  288.486186]  ? psi_memstall_enter+0x240/0x2b0
[  288.490693]  ? psi_memstall_tick+0x230/0x230
[  288.495128]  __alloc_pages_slowpath+0xa14/0x2e10
[  288.499924]  ? warn_alloc+0x120/0x120
[  288.503734]  ? mark_held_locks+0x130/0x130
[  288.508004]  ? find_get_entry+0xaae/0x1120
[  288.512261]  ? filemap_map_pages+0x1a20/0x1a20
[  288.516866]  ? zap_class+0x640/0x640
[  288.520597]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  288.526146]  ? check_preemption_disabled+0x48/0x280
[  288.531172]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.536723]  ? should_fail+0x22d/0xd01
[  288.540648]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  288.545779]  ? zap_class+0x640/0x640
[  288.549535]  ? __lock_is_held+0xb5/0x140
[  288.553614]  ? mark_held_locks+0x130/0x130
[  288.557862]  ? lock_release+0xa00/0xa00
[  288.561849]  ? perf_trace_sched_process_exec+0x860/0x860
[  288.567312]  ? xa_load+0x2ba/0x460
[  288.570870]  ? lock_downgrade+0x900/0x900
[  288.575039]  ? __might_sleep+0x95/0x190
[  288.579037]  __alloc_pages_nodemask+0xa80/0xde0
[  288.583728]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  288.588844]  ? __page_cache_alloc+0x191/0x5c0
[  288.593361]  ? xa_load+0x2e1/0x460
[  288.596920]  ? xa_clear_mark+0x40/0x40
[  288.600825]  ? zap_class+0x640/0x640
[  288.604563]  ? zap_class+0x640/0x640
[  288.608299]  ? zap_class+0x640/0x640
[  288.612029]  ? __do_page_cache_readahead+0x663/0x810
[  288.617156]  ? find_held_lock+0x36/0x1c0
[  288.621241]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  288.626819]  alloc_pages_current+0x173/0x350
[  288.631248]  __page_cache_alloc+0x38c/0x5c0
[  288.635583]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  288.640527]  ? kasan_check_read+0x11/0x20
[  288.644687]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.649978]  ? generic_perform_write+0x6a0/0x6a0
[  288.654768]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.660326]  ? check_preemption_disabled+0x48/0x280
[  288.665359]  filemap_fault+0x1595/0x25f0
[  288.669448]  ? __lock_page_or_retry+0xa00/0xa00
[  288.674133]  ? mark_held_locks+0x130/0x130
[  288.678390]  ? filemap_map_pages+0xd6b/0x1a20
[  288.682902]  ? lock_downgrade+0x900/0x900
[  288.687064]  ? check_preemption_disabled+0x48/0x280
[  288.692097]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  288.697044]  ? kasan_check_read+0x11/0x20
[  288.701201]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.706486]  ? rcu_softirq_qs+0x20/0x20
[  288.710486]  ? filemap_map_pages+0xd92/0x1a20
[  288.715009]  ? find_get_entries_tag+0x1400/0x1400
[  288.719859]  ? find_held_lock+0x36/0x1c0
[  288.723952]  ? lock_acquire+0x1ed/0x520
[  288.727935]  ? ext4_filemap_fault+0x7a/0xad
[  288.732281]  ? lock_release+0xa00/0xa00
[  288.736270]  ? perf_trace_sched_process_exec+0x860/0x860
[  288.741735]  ? print_usage_bug+0xc0/0xc0
[  288.745842]  ? down_read+0x8d/0x120
[  288.749478]  ? ext4_filemap_fault+0x7a/0xad
[  288.753812]  ? __down_interruptible+0x700/0x700
[  288.758497]  ? find_held_lock+0x36/0x1c0
[  288.762575]  ext4_filemap_fault+0x82/0xad
[  288.766738]  __do_fault+0x100/0x6b0
[  288.770398]  ? lock_downgrade+0x900/0x900
[  288.774558]  ? pmd_devmap_trans_unstable+0x220/0x220
[  288.779679]  ? kasan_check_read+0x11/0x20
[  288.783842]  ? do_raw_spin_unlock+0xa7/0x330
[  288.788266]  ? do_raw_spin_trylock+0x270/0x270
[  288.792877]  __handle_mm_fault+0x3ea0/0x5be0
[  288.797310]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  288.802175]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  288.806799]  ? zap_class+0x640/0x640
[  288.810526]  ? zap_class+0x640/0x640
[  288.814249]  ? __x64_sys_futex+0x53e/0x6a0
[  288.818505]  ? find_held_lock+0x36/0x1c0
[  288.822589]  ? handle_mm_fault+0x42a/0xc70
[  288.826841]  ? lock_downgrade+0x900/0x900
[  288.831002]  ? check_preemption_disabled+0x48/0x280
[  288.836032]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  288.840973]  ? kasan_check_read+0x11/0x20
[  288.845478]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  288.850783]  ? rcu_softirq_qs+0x20/0x20
[  288.854790]  ? trace_hardirqs_off_caller+0x310/0x310
[  288.859909]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  288.865457]  ? check_preemption_disabled+0x48/0x280
[  288.870494]  handle_mm_fault+0x54f/0xc70
[  288.874570]  ? __handle_mm_fault+0x5be0/0x5be0
[  288.879167]  ? find_vma+0x34/0x190
[  288.882725]  __do_page_fault+0x5e8/0xe60
[  288.886819]  ? trace_hardirqs_off+0xb8/0x310
[  288.891249]  do_page_fault+0xf2/0x7e0
[  288.895064]  ? vmalloc_sync_all+0x30/0x30
[  288.899226]  ? error_entry+0x70/0xd0
[  288.902953]  ? trace_hardirqs_off_caller+0xbb/0x310
[  288.907981]  ? trace_hardirqs_on_caller+0xc0/0x310
[  288.912921]  ? syscall_return_slowpath+0x5e0/0x5e0
[  288.917868]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.922722]  ? trace_hardirqs_on_caller+0x310/0x310
[  288.927786]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  288.933258]  ? prepare_exit_to_usermode+0x291/0x3b0
[  288.938292]  ? page_fault+0x8/0x30
[  288.941849]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  288.947195]  ? page_fault+0x8/0x30
[  288.950750]  page_fault+0x1e/0x30
[  288.954232] RIP: 0033:0x404068
[  288.957452] Code: Bad RIP value.
[  288.960824] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  288.966196] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  288.973476] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  288.980772] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  288.988052] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  288.995329] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  289.002633] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  289.002638] warn_alloc_show_mem: 1 callbacks suppressed
[  289.002646] Mem-Info:
[  289.009933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  289.015313] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  289.015313]  active_file:13 inactive_file:28 isolated_file:0
[  289.015313]  unevictable:0 dirty:1 writeback:0 unstable:0
[  289.015313]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  289.015313]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  289.015313]  free:13541 free_pcp:161 free_cma:0
[  289.017699] Call Trace:
[  289.027096] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  289.060124]  <IRQ>
[  289.062703] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  289.090643]  dump_stack+0x244/0x39d
[  289.092794] lowmem_reserve[]: 0 2818 6321 6321
[  289.118911]  ? dump_stack_print_info.cold.1+0x20/0x20
[  289.122525] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  289.127120]  warn_alloc.cold.116+0xb7/0x1bd
[  289.132287] lowmem_reserve[]: 0 0 3503 3503
[  289.159877]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  289.164182] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  289.168508]  ? lock_downgrade+0x900/0x900
[  289.173332] lowmem_reserve[]: 0 0 0 0
[  289.202492]  ? trace_hardirqs_off+0xb8/0x310
[  289.206622] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  289.210438]  ? trace_hardirqs_off+0xb8/0x310
[  289.214830] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  289.228361]  __alloc_pages_slowpath+0x26e8/0x2e10
[  289.232749] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  289.247968]  ? warn_alloc+0x120/0x120
[  289.252801] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  289.267282]  ? print_usage_bug+0xc0/0xc0
[  289.271073] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  289.279906]  ? warn_alloc+0x120/0x120
[  289.283954] 4984 total pagecache pages
[  289.292532]  ? warn_alloc+0x120/0x120
[  289.296323] 0 pages in swap cache
[  289.300211]  ? print_usage_bug+0xc0/0xc0
[  289.304006] Swap cache stats: add 0, delete 0, find 0/0
[  289.307457]  ? kvm_clock_read+0x18/0x30
[  289.311503] Free swap  = 0kB
[  289.316877]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  289.320835] Total swap = 0kB
[  289.323862]  ? print_usage_bug+0xc0/0xc0
[  289.328864] 1965979 pages RAM
[  289.331891]  ? __lock_acquire+0x62f/0x4c20
[  289.335935] 0 pages HighMem/MovableOnly
[  289.339044]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.343269] 342853 pages reserved
[  289.347243]  ? should_fail+0x22d/0xd01
[  289.352779] 0 pages cma reserved
[  289.356238]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.360172] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  289.363481]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.368821] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  289.375260]  ? __lock_acquire+0x62f/0x4c20
[  289.380352] syz-fuzzer cpuset=/ mems_allowed=0
[  289.390584]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  289.404485]  ? __lock_acquire+0x62f/0x4c20
[  289.408732]  ? should_fail+0x22d/0xd01
[  289.412648]  ? rcu_irq_exit+0x1a2/0x390
[  289.416645]  ? mark_held_locks+0x130/0x130
[  289.420898]  ? mark_held_locks+0x130/0x130
[  289.425150]  ? mark_held_locks+0xc7/0x130
[  289.429308]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  289.434332]  ? zap_class+0x640/0x640
[  289.438057]  ? print_usage_bug+0xc0/0xc0
[  289.442131]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.447683]  ? check_preemption_disabled+0x48/0x280
[  289.452719]  ? __lock_is_held+0xb5/0x140
[  289.456823]  __alloc_pages_nodemask+0xa80/0xde0
[  289.461504]  ? zap_class+0x640/0x640
[  289.465237]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  289.470278]  ? find_held_lock+0x36/0x1c0
[  289.474364]  ? ____cache_alloc_node+0x1c7/0x1e0
[  289.479044]  ? lock_downgrade+0x900/0x900
[  289.483212]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.488786]  cache_grow_begin+0xa5/0x8c0
[  289.492860]  ? do_raw_spin_unlock+0xa7/0x330
[  289.497293]  fallback_alloc+0x204/0x2e0
[  289.501284]  ____cache_alloc_node+0x1c7/0x1e0
[  289.505816]  kmem_cache_alloc_node+0xe3/0x730
[  289.510327]  ? ipv6_get_ifaddr+0x42e/0x620
[  289.514585]  __alloc_skb+0x119/0x770
[  289.518308]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.523602]  ? netdev_alloc_frag+0x1f0/0x1f0
[  289.528020]  ? lock_downgrade+0x900/0x900
[  289.532189]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.537789]  ? refcount_sub_and_test_checked+0x203/0x310
[  289.543253]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  289.548716]  ? addrconf_rs_timer+0x690/0x690
[  289.553151]  ndisc_alloc_skb+0x144/0x340
[  289.557230]  ndisc_send_rs+0x331/0x6e0
[  289.561138]  addrconf_rs_timer+0x314/0x690
[  289.565389]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.569646]  call_timer_fn+0x272/0x920
[  289.573543]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.577808]  ? process_timeout+0x40/0x40
[  289.581886]  ? __run_timers+0x7da/0xc70
[  289.585871]  ? _raw_spin_unlock_irq+0x27/0x80
[  289.590376]  ? _raw_spin_unlock_irq+0x27/0x80
[  289.594879]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.599126]  ? lockdep_hardirqs_on+0x296/0x5b0
[  289.603723]  ? trace_hardirqs_on+0xbd/0x310
[  289.608078]  ? kasan_check_read+0x11/0x20
[  289.612237]  ? __run_timers+0x7da/0xc70
[  289.616223]  ? trace_hardirqs_off_caller+0x310/0x310
[  289.621345]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.625599]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  289.629847]  __run_timers+0x7e5/0xc70
[  289.633666]  ? timer_fixup_init+0x70/0x70
[  289.637829]  ? kasan_check_read+0x11/0x20
[  289.641986]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  289.647273]  ? rcu_softirq_qs+0x20/0x20
[  289.651258]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.656814]  ? check_preemption_disabled+0x48/0x280
[  289.661850]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  289.666624]  ? retint_kernel+0x2d/0x2d
[  289.670521]  ? trace_hardirqs_on_caller+0xc0/0x310
[  289.675465]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  289.680221]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  289.685683]  ? zap_class+0x640/0x640
[  289.689413]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.694963]  ? check_preemption_disabled+0x48/0x280
[  289.699999]  ? __lock_is_held+0xb5/0x140
[  289.704072]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.709622]  ? check_preemption_disabled+0x48/0x280
[  289.714651]  run_timer_softirq+0x52/0xb0
[  289.718721]  ? rcu_read_lock_sched_held+0x14f/0x180
[  289.723787]  __do_softirq+0x308/0xb7e
[  289.727607]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  289.732111]  ? lock_downgrade+0x900/0x900
[  289.736274]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  289.741401]  ? pvclock_read_flags+0x160/0x160
[  289.745917]  ? lapic_next_event+0x5a/0x90
[  289.750077]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.755634]  ? kvm_clock_read+0x18/0x30
[  289.759618]  ? kvm_sched_clock_read+0x9/0x20
[  289.764037]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  289.769586]  ? check_preemption_disabled+0x48/0x280
[  289.774622]  irq_exit+0x17f/0x1c0
[  289.778086]  smp_apic_timer_interrupt+0x1cb/0x760
[  289.782938]  ? smp_reschedule_interrupt+0x109/0x650
[  289.787966]  ? smp_call_function_single_interrupt+0x650/0x650
[  289.793867]  ? interrupt_entry+0xb5/0xc0
[  289.797939]  ? trace_hardirqs_off_caller+0xbb/0x310
[  289.802965]  ? trace_hardirqs_off_caller+0xbb/0x310
[  289.807997]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.812851]  ? trace_hardirqs_on_caller+0x310/0x310
[  289.818378]  ? trace_hardirqs_on_caller+0x310/0x310
[  289.823410]  ? task_prio+0x50/0x50
[  289.826967]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  289.832568]  ? check_preemption_disabled+0x48/0x280
[  289.837601]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  289.842461]  apic_timer_interrupt+0xf/0x20
[  289.846699]  </IRQ>
[  289.848954] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  289.853898] 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
[  289.872812] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  289.880527] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  289.887892] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  289.895172] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  289.902450] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  289.909726] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  289.917067]  skb_clone+0x1bb/0x500
[  289.920619]  ? skb_split+0x11e0/0x11e0
[  289.924524]  ? preempt_notifier_register+0x200/0x200
[  289.929636]  ? __switch_to_asm+0x34/0x70
[  289.933706]  ? __switch_to_asm+0x34/0x70
[  289.937797]  ? __switch_to_asm+0x40/0x70
[  289.941870]  ? __switch_to_asm+0x34/0x70
[  289.945941]  ? __switch_to_asm+0x40/0x70
[  289.950017]  ? __switch_to_asm+0x40/0x70
[  289.954088]  ? __switch_to_asm+0x34/0x70
[  289.958159]  ? __switch_to_asm+0x34/0x70
[  289.962229]  ? __switch_to_asm+0x40/0x70
[  289.966348]  ? __switch_to_asm+0x34/0x70
[  289.970431]  bpf_clone_redirect+0xb9/0x490
[  289.974687]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  289.979723]  ? __sched_text_start+0x8/0x8
[  289.983905]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  289.988678]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  289.993454]  ? find_held_lock+0x36/0x1c0
[  289.997535]  ? lock_acquire+0x1ed/0x520
[  290.001520]  ? bpf_test_run+0x3cb/0x780
[  290.005508]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.011058]  ? check_preemption_disabled+0x48/0x280
[  290.016092]  ? kasan_check_read+0x11/0x20
[  290.020249]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.025535]  ? rcu_softirq_qs+0x20/0x20
[  290.029524]  ? preempt_schedule+0x4d/0x60
[  290.033686]  ? ___preempt_schedule+0x16/0x18
[  290.038114]  ? bpf_test_run+0x25d/0x780
[  290.042111]  ? netlink_diag_dump+0x2a0/0x2a0
[  290.046532]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.052082]  ? bpf_test_init.isra.10+0x70/0x100
[  290.056790]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  290.061570]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  290.066422]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  290.071971]  ? fput+0x130/0x1a0
[  290.075261]  ? __bpf_prog_get+0x9b/0x290
[  290.079336]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  290.084190]  ? bpf_prog_test_run+0x130/0x1a0
[  290.088615]  ? __x64_sys_bpf+0x3d8/0x520
[  290.092691]  ? bpf_prog_get+0x20/0x20
[  290.096520]  ? do_syscall_64+0x1b9/0x820
[  290.100590]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  290.105972]  ? syscall_return_slowpath+0x5e0/0x5e0
[  290.110916]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.115951]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  290.120986]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  290.127665]  ? __switch_to_asm+0x40/0x70
[  290.131735]  ? __switch_to_asm+0x34/0x70
[  290.135837]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.140698]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  290.146091] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  290.146170] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  290.153031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  290.153036] Call Trace:
[  290.153043]  <IRQ>
[  290.153060]  dump_stack+0x244/0x39d
[  290.153079]  ? dump_stack_print_info.cold.1+0x20/0x20
[  290.159619] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  290.168930]  warn_alloc.cold.116+0xb7/0x1bd
[  290.171492] syz-executor4 cpuset=syz4 mems_allowed=0
[  290.173645]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  290.207222]  ? lock_downgrade+0x900/0x900
[  290.211388]  ? trace_hardirqs_off+0xb8/0x310
[  290.215819]  ? trace_hardirqs_off+0xb8/0x310
[  290.220251]  __alloc_pages_slowpath+0x26e8/0x2e10
[  290.225137]  ? warn_alloc+0x120/0x120
[  290.228953]  ? print_usage_bug+0xc0/0xc0
[  290.233024]  ? warn_alloc+0x120/0x120
[  290.236841]  ? warn_alloc+0x120/0x120
[  290.240658]  ? print_usage_bug+0xc0/0xc0
[  290.244738]  ? print_usage_bug+0xc0/0xc0
[  290.248851]  ? __lock_acquire+0x62f/0x4c20
[  290.253103]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.258653]  ? should_fail+0x22d/0xd01
[  290.262564]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.267680]  ? __lock_acquire+0x62f/0x4c20
[  290.271934]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  290.277047]  ? __lock_acquire+0x62f/0x4c20
[  290.281296]  ? should_fail+0x22d/0xd01
[  290.285196]  ? find_held_lock+0x36/0x1c0
[  290.289281]  ? mark_held_locks+0x130/0x130
[  290.293533]  ? mark_held_locks+0x130/0x130
[  290.297794]  ? zap_class+0x640/0x640
[  290.301523]  ? zap_class+0x640/0x640
[  290.305253]  ? print_usage_bug+0xc0/0xc0
[  290.309332]  ? do_raw_spin_unlock+0xa7/0x330
[  290.313749]  ? zap_class+0x640/0x640
[  290.317498]  ? print_usage_bug+0xc0/0xc0
[  290.321568]  ? wq_watchdog_touch+0x9c/0xfe
[  290.325833]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.331387]  ? check_preemption_disabled+0x48/0x280
[  290.336429]  ? __lock_is_held+0xb5/0x140
[  290.340515]  __alloc_pages_nodemask+0xa80/0xde0
[  290.345197]  ? zap_class+0x640/0x640
[  290.348931]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  290.353968]  ? find_held_lock+0x36/0x1c0
[  290.358053]  ? ____cache_alloc_node+0x1c7/0x1e0
[  290.362736]  ? lock_downgrade+0x900/0x900
[  290.366925]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.372478]  cache_grow_begin+0xa5/0x8c0
[  290.376550]  ? do_raw_spin_unlock+0xa7/0x330
[  290.380977]  fallback_alloc+0x204/0x2e0
[  290.384971]  ____cache_alloc_node+0x1c7/0x1e0
[  290.389483]  kmem_cache_alloc_node+0xe3/0x730
[  290.393989]  ? ipv6_get_ifaddr+0x42e/0x620
[  290.398245]  __alloc_skb+0x119/0x770
[  290.401977]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.407274]  ? netdev_alloc_frag+0x1f0/0x1f0
[  290.411694]  ? lock_downgrade+0x900/0x900
[  290.415864]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.421412]  ? refcount_sub_and_test_checked+0x203/0x310
[  290.426881]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  290.432344]  ? addrconf_rs_timer+0x690/0x690
[  290.436792]  ndisc_alloc_skb+0x144/0x340
[  290.440874]  ndisc_send_rs+0x331/0x6e0
[  290.444795]  addrconf_rs_timer+0x314/0x690
[  290.449048]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.453338]  call_timer_fn+0x272/0x920
[  290.457259]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.461515]  ? process_timeout+0x40/0x40
[  290.465603]  ? mark_held_locks+0xc7/0x130
[  290.469783]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.474298]  ? _raw_spin_unlock_irq+0x27/0x80
[  290.478807]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.483054]  ? lockdep_hardirqs_on+0x296/0x5b0
[  290.487652]  ? trace_hardirqs_on+0xbd/0x310
[  290.491987]  ? kasan_check_read+0x11/0x20
[  290.496145]  ? __run_timers+0x7da/0xc70
[  290.500132]  ? trace_hardirqs_off_caller+0x310/0x310
[  290.505249]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.509504]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  290.513747]  __run_timers+0x7e5/0xc70
[  290.517590]  ? timer_fixup_init+0x70/0x70
[  290.521772]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  290.526811]  ? zap_class+0x640/0x640
[  290.530545]  ? print_usage_bug+0xc0/0xc0
[  290.534618]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  290.539838]  ? find_held_lock+0x36/0x1c0
[  290.543921]  ? zap_class+0x640/0x640
[  290.547652]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.553206]  ? check_preemption_disabled+0x48/0x280
[  290.558246]  ? __lock_is_held+0xb5/0x140
[  290.562328]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.567878]  ? check_preemption_disabled+0x48/0x280
[  290.572914]  run_timer_softirq+0x52/0xb0
[  290.576987]  ? rcu_read_lock_sched_held+0x14f/0x180
[  290.582018]  __do_softirq+0x308/0xb7e
[  290.585839]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  290.590345]  ? lock_downgrade+0x900/0x900
[  290.594513]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  290.599639]  ? pvclock_read_flags+0x160/0x160
[  290.604149]  ? lapic_next_event+0x5a/0x90
[  290.608314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.613870]  ? kvm_clock_read+0x18/0x30
[  290.617858]  ? kvm_sched_clock_read+0x9/0x20
[  290.622285]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.627834]  ? check_preemption_disabled+0x48/0x280
[  290.632872]  irq_exit+0x17f/0x1c0
[  290.636339]  smp_apic_timer_interrupt+0x1cb/0x760
[  290.641196]  ? smp_reschedule_interrupt+0x109/0x650
[  290.646224]  ? smp_call_function_single_interrupt+0x650/0x650
[  290.652120]  ? interrupt_entry+0xb5/0xc0
[  290.656195]  ? trace_hardirqs_off_caller+0xbb/0x310
[  290.661223]  ? trace_hardirqs_off_caller+0xbb/0x310
[  290.666255]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.671119]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.676148]  ? trace_hardirqs_on_caller+0x310/0x310
[  290.681178]  ? task_prio+0x50/0x50
[  290.684729]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  290.690299]  ? check_preemption_disabled+0x48/0x280
[  290.695337]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  290.700197]  apic_timer_interrupt+0xf/0x20
[  290.704437]  </IRQ>
[  290.706734] RIP: 0010:check_memory_region+0x121/0x1b0
[  290.711957] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  290.730868] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  290.738585] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  290.745864] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  290.753137] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  290.760413] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  290.767686] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  290.774971]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.780260]  kasan_check_read+0x11/0x20
[  290.784251]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  290.789377]  ? rcu_softirq_qs+0x20/0x20
[  290.793378]  rcu_is_watching+0x10/0x30
[  290.797273]  list_lru_count_one+0x362/0x450
[  290.801599]  ? list_lru_isolate_move+0x3c0/0x3c0
[  290.806368]  ? shmem_free_inode+0xd0/0xd0
[  290.810517]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  290.816077]  ? ubifs_shrink_count+0xc4/0x100
[  290.820494]  super_cache_count+0x153/0x2e0
[  290.824734]  do_shrink_slab+0x1b1/0xd30
[  290.828724]  ? lock_acquire+0x1ed/0x520
[  290.832712]  ? snapshot_refaults+0x290/0x290
[  290.837129]  ? lock_release+0xa00/0xa00
[  290.841111]  ? perf_trace_sched_process_exec+0x860/0x860
[  290.846947]  ? down_read_trylock+0xda/0x140
[  290.851288]  ? shrink_slab+0x207/0x8c0
[  290.855176]  ? downgrade_write+0x270/0x270
[  290.859439]  shrink_slab+0x389/0x8c0
[  290.863153]  ? shrink_active_list+0x1f00/0x1f00
[  290.867834]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  290.873463]  ? kasan_check_read+0x11/0x20
[  290.881781]  ? do_raw_spin_unlock+0xa7/0x330
[  290.886217]  ? ___preempt_schedule+0x16/0x18
[  290.890635]  ? _raw_spin_unlock+0x3f/0x50
[  290.894809]  shrink_node+0x431/0x16b0
[  290.898613]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  290.903916]  ? shrink_node_memcg+0x18f0/0x18f0
[  290.908500]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  290.913105]  ? trace_hardirqs_on+0xbd/0x310
[  290.917425]  ? vmpressure+0x271/0x340
[  290.921230]  ? do_raw_spin_trylock+0x270/0x270
[  290.925822]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  290.931395]  ? __cpuset_node_allowed+0x19b/0x660
[  290.936172]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  290.941884]  ? vmpressure+0x1a2/0x340
[  290.946207]  do_try_to_free_pages+0x3e7/0x1290
[  290.950796]  ? zap_class+0x640/0x640
[  290.954532]  ? shrink_node+0x16b0/0x16b0
[  290.958601]  ? __lock_is_held+0xb5/0x140
[  290.962677]  try_to_free_pages+0x4d0/0xb90
[  290.966919]  ? do_try_to_free_pages+0x1290/0x1290
[  290.971781]  ? lock_acquire+0x1ed/0x520
[  290.975764]  ? set_page_refcounted+0x280/0x280
[  290.980357]  ? lock_release+0xa00/0xa00
[  290.984333]  ? _raw_spin_unlock_irq+0x60/0x80
[  290.988828]  ? psi_memstall_enter+0x240/0x2b0
[  290.993325]  ? psi_memstall_tick+0x230/0x230
[  290.997746]  __alloc_pages_slowpath+0xa14/0x2e10
[  291.002542]  ? warn_alloc+0x120/0x120
[  291.006348]  ? mark_held_locks+0x130/0x130
[  291.010594]  ? find_get_entry+0xaae/0x1120
[  291.014845]  ? filemap_map_pages+0x1a20/0x1a20
[  291.019436]  ? zap_class+0x640/0x640
[  291.023162]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.028703]  ? check_preemption_disabled+0x48/0x280
[  291.033721]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.039271]  ? should_fail+0x22d/0xd01
[  291.043167]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  291.048291]  ? zap_class+0x640/0x640
[  291.052035]  ? __lock_is_held+0xb5/0x140
[  291.056105]  ? mark_held_locks+0x130/0x130
[  291.060357]  ? lock_release+0xa00/0xa00
[  291.064335]  ? perf_trace_sched_process_exec+0x860/0x860
[  291.069817]  ? xa_load+0x2ba/0x460
[  291.073359]  ? lock_downgrade+0x900/0x900
[  291.077547]  ? __might_sleep+0x95/0x190
[  291.081532]  __alloc_pages_nodemask+0xa80/0xde0
[  291.086213]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  291.091232]  ? __page_cache_alloc+0x191/0x5c0
[  291.095732]  ? xa_load+0x2e1/0x460
[  291.099287]  ? xa_clear_mark+0x40/0x40
[  291.103182]  ? zap_class+0x640/0x640
[  291.106905]  ? zap_class+0x640/0x640
[  291.110620]  ? zap_class+0x640/0x640
[  291.114349]  ? __do_page_cache_readahead+0x663/0x810
[  291.119481]  ? find_held_lock+0x36/0x1c0
[  291.123554]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  291.129099]  alloc_pages_current+0x173/0x350
[  291.133513]  __page_cache_alloc+0x38c/0x5c0
[  291.137840]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.142777]  ? kasan_check_read+0x11/0x20
[  291.146930]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.152209]  ? generic_perform_write+0x6a0/0x6a0
[  291.156968]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.162522]  ? check_preemption_disabled+0x48/0x280
[  291.167546]  filemap_fault+0x1595/0x25f0
[  291.171627]  ? __lock_page_or_retry+0xa00/0xa00
[  291.176304]  ? mark_held_locks+0x130/0x130
[  291.180551]  ? filemap_map_pages+0xd6b/0x1a20
[  291.185077]  ? lock_downgrade+0x900/0x900
[  291.189230]  ? check_preemption_disabled+0x48/0x280
[  291.194255]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.199193]  ? kasan_check_read+0x11/0x20
[  291.203340]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.208642]  ? rcu_softirq_qs+0x20/0x20
[  291.212631]  ? filemap_map_pages+0xd92/0x1a20
[  291.217141]  ? find_get_entries_tag+0x1400/0x1400
[  291.221984]  ? find_held_lock+0x36/0x1c0
[  291.226066]  ? lock_acquire+0x1ed/0x520
[  291.230040]  ? ext4_filemap_fault+0x7a/0xad
[  291.234372]  ? lock_release+0xa00/0xa00
[  291.238347]  ? perf_trace_sched_process_exec+0x860/0x860
[  291.243796]  ? print_usage_bug+0xc0/0xc0
[  291.247877]  ? down_read+0x8d/0x120
[  291.251504]  ? ext4_filemap_fault+0x7a/0xad
[  291.255827]  ? __down_interruptible+0x700/0x700
[  291.260498]  ? find_held_lock+0x36/0x1c0
[  291.264567]  ext4_filemap_fault+0x82/0xad
[  291.268723]  __do_fault+0x100/0x6b0
[  291.272363]  ? lock_downgrade+0x900/0x900
[  291.276515]  ? pmd_devmap_trans_unstable+0x220/0x220
[  291.281623]  ? kasan_check_read+0x11/0x20
[  291.285779]  ? do_raw_spin_unlock+0xa7/0x330
[  291.290196]  ? do_raw_spin_trylock+0x270/0x270
[  291.294806]  __handle_mm_fault+0x3ea0/0x5be0
[  291.299226]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  291.304083]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  291.308679]  ? zap_class+0x640/0x640
[  291.312399]  ? zap_class+0x640/0x640
[  291.316113]  ? __x64_sys_futex+0x53e/0x6a0
[  291.320359]  ? find_held_lock+0x36/0x1c0
[  291.324430]  ? handle_mm_fault+0x42a/0xc70
[  291.328667]  ? lock_downgrade+0x900/0x900
[  291.332820]  ? check_preemption_disabled+0x48/0x280
[  291.337840]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  291.342779]  ? kasan_check_read+0x11/0x20
[  291.346927]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  291.352236]  ? rcu_softirq_qs+0x20/0x20
[  291.356217]  ? trace_hardirqs_off_caller+0x310/0x310
[  291.361322]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.366861]  ? check_preemption_disabled+0x48/0x280
[  291.371916]  handle_mm_fault+0x54f/0xc70
[  291.375994]  ? __handle_mm_fault+0x5be0/0x5be0
[  291.380584]  ? find_vma+0x34/0x190
[  291.384134]  __do_page_fault+0x5e8/0xe60
[  291.388196]  ? trace_hardirqs_off+0xb8/0x310
[  291.392614]  do_page_fault+0xf2/0x7e0
[  291.396417]  ? vmalloc_sync_all+0x30/0x30
[  291.400571]  ? error_entry+0x70/0xd0
[  291.404291]  ? trace_hardirqs_off_caller+0xbb/0x310
[  291.409310]  ? trace_hardirqs_on_caller+0xc0/0x310
[  291.414244]  ? syscall_return_slowpath+0x5e0/0x5e0
[  291.419176]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.424041]  ? trace_hardirqs_on_caller+0x310/0x310
[  291.429056]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  291.434514]  ? prepare_exit_to_usermode+0x291/0x3b0
[  291.439530]  ? page_fault+0x8/0x30
[  291.443078]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  291.447929]  ? page_fault+0x8/0x30
[  291.451474]  page_fault+0x1e/0x30
[  291.454943] RIP: 0033:0x404068
[  291.458153] Code: Bad RIP value.
[  291.461516] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  291.466893] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  291.474162] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  291.481430] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  291.488696] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  291.495965] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  291.503250] warn_alloc_show_mem: 1 callbacks suppressed
[  291.503262] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  291.503272] Mem-Info:
[  291.508637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  291.515919] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  291.515919]  active_file:13 inactive_file:28 isolated_file:0
[  291.515919]  unevictable:0 dirty:1 writeback:0 unstable:0
[  291.515919]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  291.515919]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  291.515919]  free:13541 free_pcp:161 free_cma:0
[  291.518289] Call Trace:
[  291.527677] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  291.560691]  <IRQ>
[  291.563260] 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
[  291.591190]  dump_stack+0x244/0x39d
[  291.593318] lowmem_reserve[]: 0 2818 6321 6321
[  291.619438]  ? dump_stack_print_info.cold.1+0x20/0x20
[  291.623043] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  291.627626]  warn_alloc.cold.116+0xb7/0x1bd
[  291.632784] lowmem_reserve[]: 0 0 3503 3503
[  291.660362]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  291.664659] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  291.668974]  ? lock_downgrade+0x900/0x900
[  291.673792] lowmem_reserve[]: 0 0 0 0
[  291.702941]  ? trace_hardirqs_off+0xb8/0x310
[  291.707059] 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
[  291.710854]  ? trace_hardirqs_off+0xb8/0x310
[  291.715234] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  291.728767]  __alloc_pages_slowpath+0x26e8/0x2e10
[  291.733147] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  291.748335]  ? warn_alloc+0x120/0x120
[  291.753141] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  291.767606]  ? print_usage_bug+0xc0/0xc0
[  291.771388] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  291.780240]  ? warn_alloc+0x120/0x120
[  291.784282] 4984 total pagecache pages
[  291.792853]  ? warn_alloc+0x120/0x120
[  291.796637] 0 pages in swap cache
[  291.800510]  ? print_usage_bug+0xc0/0xc0
[  291.804294] Swap cache stats: add 0, delete 0, find 0/0
[  291.807734]  ? print_usage_bug+0xc0/0xc0
[  291.811790] Free swap  = 0kB
[  291.817647]  ? __lock_acquire+0x62f/0x4c20
[  291.821687] Total swap = 0kB
[  291.824700]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  291.828995] 1965979 pages RAM
[  291.832010]  ? should_fail+0x22d/0xd01
[  291.837519] 0 pages HighMem/MovableOnly
[  291.840617]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  291.844484] 342853 pages reserved
[  291.848451]  ? __lock_acquire+0x62f/0x4c20
[  291.853535] 0 pages cma reserved
[  291.857000]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  291.861330] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  291.864593]  ? __lock_acquire+0x62f/0x4c20
[  291.864610]  ? should_fail+0x22d/0xd01
[  291.869768] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  291.876174]  ? find_held_lock+0x36/0x1c0
[  291.880389] syz-fuzzer cpuset=/ mems_allowed=0
[  291.884272]  ? mark_held_locks+0x130/0x130
[  291.907354]  ? mark_held_locks+0x130/0x130
[  291.911593]  ? zap_class+0x640/0x640
[  291.915306]  ? zap_class+0x640/0x640
[  291.919022]  ? print_usage_bug+0xc0/0xc0
[  291.923086]  ? do_raw_spin_unlock+0xa7/0x330
[  291.927539]  ? zap_class+0x640/0x640
[  291.931266]  ? print_usage_bug+0xc0/0xc0
[  291.935341]  ? wq_watchdog_touch+0x9c/0xfe
[  291.939592]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.945145]  ? check_preemption_disabled+0x48/0x280
[  291.950170]  ? __lock_is_held+0xb5/0x140
[  291.954265]  __alloc_pages_nodemask+0xa80/0xde0
[  291.958934]  ? zap_class+0x640/0x640
[  291.962653]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  291.967685]  ? find_held_lock+0x36/0x1c0
[  291.971780]  ? ____cache_alloc_node+0x1c7/0x1e0
[  291.976455]  ? lock_downgrade+0x900/0x900
[  291.980612]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  291.986157]  cache_grow_begin+0xa5/0x8c0
[  291.990218]  ? do_raw_spin_unlock+0xa7/0x330
[  291.994635]  fallback_alloc+0x204/0x2e0
[  291.998649]  ____cache_alloc_node+0x1c7/0x1e0
[  292.003157]  kmem_cache_alloc_node+0xe3/0x730
[  292.007653]  ? ipv6_get_ifaddr+0x42e/0x620
[  292.011898]  __alloc_skb+0x119/0x770
[  292.015622]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.020908]  ? netdev_alloc_frag+0x1f0/0x1f0
[  292.025320]  ? lock_downgrade+0x900/0x900
[  292.029478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.035012]  ? refcount_sub_and_test_checked+0x203/0x310
[  292.040473]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  292.045925]  ? addrconf_rs_timer+0x690/0x690
[  292.050346]  ndisc_alloc_skb+0x144/0x340
[  292.054412]  ndisc_send_rs+0x331/0x6e0
[  292.058337]  addrconf_rs_timer+0x314/0x690
[  292.062595]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.066839]  call_timer_fn+0x272/0x920
[  292.070730]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.074979]  ? process_timeout+0x40/0x40
[  292.079047]  ? __run_timers+0x7da/0xc70
[  292.083024]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.087519]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.092012]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.096252]  ? lockdep_hardirqs_on+0x296/0x5b0
[  292.100838]  ? trace_hardirqs_on+0xbd/0x310
[  292.105159]  ? kasan_check_read+0x11/0x20
[  292.109310]  ? __run_timers+0x7da/0xc70
[  292.113289]  ? trace_hardirqs_off_caller+0x310/0x310
[  292.118396]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.122637]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.126875]  __run_timers+0x7e5/0xc70
[  292.130685]  ? timer_fixup_init+0x70/0x70
[  292.134836]  ? kasan_check_read+0x11/0x20
[  292.138990]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.144272]  ? rcu_softirq_qs+0x20/0x20
[  292.148249]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.153793]  ? check_preemption_disabled+0x48/0x280
[  292.158816]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  292.163579]  ? retint_kernel+0x2d/0x2d
[  292.167467]  ? trace_hardirqs_on_caller+0xc0/0x310
[  292.172398]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  292.177156]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  292.182610]  ? zap_class+0x640/0x640
[  292.186347]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.191884]  ? check_preemption_disabled+0x48/0x280
[  292.196915]  ? __lock_is_held+0xb5/0x140
[  292.200980]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.206520]  ? check_preemption_disabled+0x48/0x280
[  292.211542]  run_timer_softirq+0x52/0xb0
[  292.215605]  ? rcu_read_lock_sched_held+0x14f/0x180
[  292.220627]  __do_softirq+0x308/0xb7e
[  292.224435]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  292.228931]  ? lock_downgrade+0x900/0x900
[  292.233086]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  292.238200]  ? pvclock_read_flags+0x160/0x160
[  292.242698]  ? lapic_next_event+0x5a/0x90
[  292.246849]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.252396]  ? kvm_clock_read+0x18/0x30
[  292.256376]  ? kvm_sched_clock_read+0x9/0x20
[  292.260796]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.266338]  ? check_preemption_disabled+0x48/0x280
[  292.271412]  irq_exit+0x17f/0x1c0
[  292.274868]  smp_apic_timer_interrupt+0x1cb/0x760
[  292.279714]  ? smp_reschedule_interrupt+0x109/0x650
[  292.284733]  ? smp_call_function_single_interrupt+0x650/0x650
[  292.290661]  ? interrupt_entry+0xb5/0xc0
[  292.294775]  ? trace_hardirqs_off_caller+0xbb/0x310
[  292.299796]  ? trace_hardirqs_off_caller+0xbb/0x310
[  292.304818]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.309661]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.314690]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.319751]  ? task_prio+0x50/0x50
[  292.323308]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.328845]  ? check_preemption_disabled+0x48/0x280
[  292.333870]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.338720]  apic_timer_interrupt+0xf/0x20
[  292.342976]  </IRQ>
[  292.345213] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  292.350141] 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
[  292.369058] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  292.376776] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  292.384045] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  292.391346] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  292.398616] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  292.405887] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  292.413191]  skb_clone+0x1bb/0x500
[  292.416745]  ? skb_split+0x11e0/0x11e0
[  292.420652]  ? preempt_notifier_register+0x200/0x200
[  292.425760]  ? __switch_to_asm+0x34/0x70
[  292.429849]  ? __switch_to_asm+0x34/0x70
[  292.433926]  ? __switch_to_asm+0x40/0x70
[  292.437987]  ? __switch_to_asm+0x34/0x70
[  292.442044]  ? __switch_to_asm+0x40/0x70
[  292.446109]  ? __switch_to_asm+0x40/0x70
[  292.450173]  ? __switch_to_asm+0x34/0x70
[  292.454234]  ? __switch_to_asm+0x34/0x70
[  292.458292]  ? __switch_to_asm+0x40/0x70
[  292.462349]  ? __switch_to_asm+0x34/0x70
[  292.466416]  bpf_clone_redirect+0xb9/0x490
[  292.470663]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  292.476381]  ? __sched_text_start+0x8/0x8
[  292.480542]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  292.485308]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  292.490074]  ? find_held_lock+0x36/0x1c0
[  292.494143]  ? lock_acquire+0x1ed/0x520
[  292.498118]  ? bpf_test_run+0x3cb/0x780
[  292.502096]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.507639]  ? check_preemption_disabled+0x48/0x280
[  292.512663]  ? kasan_check_read+0x11/0x20
[  292.516811]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.522088]  ? rcu_softirq_qs+0x20/0x20
[  292.526067]  ? preempt_schedule+0x4d/0x60
[  292.530218]  ? ___preempt_schedule+0x16/0x18
[  292.534633]  ? bpf_test_run+0x25d/0x780
[  292.538620]  ? netlink_diag_dump+0x2a0/0x2a0
[  292.543033]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.548574]  ? bpf_test_init.isra.10+0x70/0x100
[  292.553254]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  292.558027]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  292.562875]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  292.568415]  ? fput+0x130/0x1a0
[  292.571695]  ? __bpf_prog_get+0x9b/0x290
[  292.575781]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  292.580624]  ? bpf_prog_test_run+0x130/0x1a0
[  292.585034]  ? __x64_sys_bpf+0x3d8/0x520
[  292.589097]  ? bpf_prog_get+0x20/0x20
[  292.592917]  ? do_syscall_64+0x1b9/0x820
[  292.596979]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  292.602361]  ? syscall_return_slowpath+0x5e0/0x5e0
[  292.607298]  ? trace_hardirqs_on_caller+0x310/0x310
[  292.612315]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  292.617335]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  292.624000]  ? __switch_to_asm+0x40/0x70
[  292.628063]  ? __switch_to_asm+0x34/0x70
[  292.632132]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  292.636986]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  292.642372] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  292.642440] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  292.649299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  292.649308] Call Trace:
[  292.655891] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  292.665139]  <IRQ>
[  292.667710] syz-executor4 cpuset=syz4 mems_allowed=0
[  292.678191]  dump_stack+0x244/0x39d
[  292.689035]  ? dump_stack_print_info.cold.1+0x20/0x20
[  292.694238]  warn_alloc.cold.116+0xb7/0x1bd
[  292.698570]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  292.703417]  ? lock_downgrade+0x900/0x900
[  292.707593]  ? trace_hardirqs_off+0xb8/0x310
[  292.712012]  ? trace_hardirqs_off+0xb8/0x310
[  292.716429]  __alloc_pages_slowpath+0x26e8/0x2e10
[  292.721303]  ? warn_alloc+0x120/0x120
[  292.725111]  ? print_usage_bug+0xc0/0xc0
[  292.729172]  ? warn_alloc+0x120/0x120
[  292.732981]  ? warn_alloc+0x120/0x120
[  292.736795]  ? print_usage_bug+0xc0/0xc0
[  292.740862]  ? print_usage_bug+0xc0/0xc0
[  292.744928]  ? __lock_acquire+0x62f/0x4c20
[  292.749169]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  292.754709]  ? should_fail+0x22d/0xd01
[  292.758602]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.763715]  ? __lock_acquire+0x62f/0x4c20
[  292.767957]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  292.773060]  ? __lock_acquire+0x62f/0x4c20
[  292.777298]  ? should_fail+0x22d/0xd01
[  292.781185]  ? find_held_lock+0x36/0x1c0
[  292.785256]  ? mark_held_locks+0x130/0x130
[  292.789502]  ? mark_held_locks+0x130/0x130
[  292.793748]  ? zap_class+0x640/0x640
[  292.797497]  ? zap_class+0x640/0x640
[  292.801232]  ? print_usage_bug+0xc0/0xc0
[  292.805295]  ? do_raw_spin_unlock+0xa7/0x330
[  292.809719]  ? zap_class+0x640/0x640
[  292.813443]  ? print_usage_bug+0xc0/0xc0
[  292.817504]  ? wq_watchdog_touch+0x9c/0xfe
[  292.821749]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.827319]  ? check_preemption_disabled+0x48/0x280
[  292.832344]  ? __lock_is_held+0xb5/0x140
[  292.836411]  __alloc_pages_nodemask+0xa80/0xde0
[  292.841083]  ? zap_class+0x640/0x640
[  292.844808]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  292.849838]  ? find_held_lock+0x36/0x1c0
[  292.853910]  ? ____cache_alloc_node+0x1c7/0x1e0
[  292.858585]  ? lock_downgrade+0x900/0x900
[  292.862766]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.868342]  cache_grow_begin+0xa5/0x8c0
[  292.872403]  ? do_raw_spin_unlock+0xa7/0x330
[  292.876824]  fallback_alloc+0x204/0x2e0
[  292.880807]  ____cache_alloc_node+0x1c7/0x1e0
[  292.885309]  kmem_cache_alloc_node+0xe3/0x730
[  292.889810]  ? ipv6_get_ifaddr+0x42e/0x620
[  292.894059]  __alloc_skb+0x119/0x770
[  292.897780]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  292.903063]  ? netdev_alloc_frag+0x1f0/0x1f0
[  292.907477]  ? lock_downgrade+0x900/0x900
[  292.911636]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  292.917175]  ? refcount_sub_and_test_checked+0x203/0x310
[  292.922635]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  292.928093]  ? addrconf_rs_timer+0x690/0x690
[  292.932517]  ndisc_alloc_skb+0x144/0x340
[  292.936586]  ndisc_send_rs+0x331/0x6e0
[  292.940512]  addrconf_rs_timer+0x314/0x690
[  292.944762]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.949520]  call_timer_fn+0x272/0x920
[  292.953412]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.957653]  ? process_timeout+0x40/0x40
[  292.961724]  ? mark_held_locks+0xc7/0x130
[  292.965886]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.970383]  ? _raw_spin_unlock_irq+0x27/0x80
[  292.974881]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  292.979122]  ? lockdep_hardirqs_on+0x296/0x5b0
[  292.983710]  ? trace_hardirqs_on+0xbd/0x310
[  292.988032]  ? kasan_check_read+0x11/0x20
[  292.992178]  ? __run_timers+0x7da/0xc70
[  292.996157]  ? trace_hardirqs_off_caller+0x310/0x310
[  293.001297]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.005552]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  293.009791]  __run_timers+0x7e5/0xc70
[  293.013606]  ? timer_fixup_init+0x70/0x70
[  293.017769]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  293.022789]  ? zap_class+0x640/0x640
[  293.026512]  ? print_usage_bug+0xc0/0xc0
[  293.030578]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  293.035785]  ? find_held_lock+0x36/0x1c0
[  293.039855]  ? zap_class+0x640/0x640
[  293.043578]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.049119]  ? check_preemption_disabled+0x48/0x280
[  293.054147]  ? __lock_is_held+0xb5/0x140
[  293.058210]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.063748]  ? check_preemption_disabled+0x48/0x280
[  293.068787]  run_timer_softirq+0x52/0xb0
[  293.072851]  ? rcu_read_lock_sched_held+0x14f/0x180
[  293.077874]  __do_softirq+0x308/0xb7e
[  293.081683]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  293.086177]  ? lock_downgrade+0x900/0x900
[  293.090347]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  293.095464]  ? pvclock_read_flags+0x160/0x160
[  293.099970]  ? lapic_next_event+0x5a/0x90
[  293.104120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.109668]  ? kvm_clock_read+0x18/0x30
[  293.113645]  ? kvm_sched_clock_read+0x9/0x20
[  293.118062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.123604]  ? check_preemption_disabled+0x48/0x280
[  293.128632]  irq_exit+0x17f/0x1c0
[  293.132087]  smp_apic_timer_interrupt+0x1cb/0x760
[  293.136930]  ? smp_reschedule_interrupt+0x109/0x650
[  293.141950]  ? smp_call_function_single_interrupt+0x650/0x650
[  293.147835]  ? interrupt_entry+0xb5/0xc0
[  293.151898]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.156913]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.161932]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.166786]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.171805]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.176825]  ? task_prio+0x50/0x50
[  293.180369]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.185915]  ? check_preemption_disabled+0x48/0x280
[  293.190964]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.195817]  apic_timer_interrupt+0xf/0x20
[  293.200055]  </IRQ>
[  293.202303] RIP: 0010:check_memory_region+0x121/0x1b0
[  293.207496] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  293.226394] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  293.234104] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  293.241372] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  293.248643] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  293.255914] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  293.263184] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  293.270467]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.275767]  kasan_check_read+0x11/0x20
[  293.279749]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.284868]  ? rcu_softirq_qs+0x20/0x20
[  293.288851]  rcu_is_watching+0x10/0x30
[  293.292742]  list_lru_count_one+0x362/0x450
[  293.297081]  ? list_lru_isolate_move+0x3c0/0x3c0
[  293.301839]  ? shmem_free_inode+0xd0/0xd0
[  293.305989]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.311527]  ? ubifs_shrink_count+0xc4/0x100
[  293.315944]  super_cache_count+0x153/0x2e0
[  293.320185]  do_shrink_slab+0x1b1/0xd30
[  293.324168]  ? lock_acquire+0x1ed/0x520
[  293.328151]  ? snapshot_refaults+0x290/0x290
[  293.332566]  ? lock_release+0xa00/0xa00
[  293.336548]  ? perf_trace_sched_process_exec+0x860/0x860
[  293.342013]  ? down_read_trylock+0xda/0x140
[  293.346334]  ? shrink_slab+0x207/0x8c0
[  293.350223]  ? downgrade_write+0x270/0x270
[  293.354468]  shrink_slab+0x389/0x8c0
[  293.358182]  ? shrink_active_list+0x1f00/0x1f00
[  293.362865]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  293.368493]  ? kasan_check_read+0x11/0x20
[  293.372646]  ? do_raw_spin_unlock+0xa7/0x330
[  293.377065]  ? ___preempt_schedule+0x16/0x18
[  293.381485]  ? _raw_spin_unlock+0x3f/0x50
[  293.385655]  shrink_node+0x431/0x16b0
[  293.389457]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  293.394798]  ? shrink_node_memcg+0x18f0/0x18f0
[  293.399382]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  293.403967]  ? trace_hardirqs_on+0xbd/0x310
[  293.408292]  ? vmpressure+0x271/0x340
[  293.412101]  ? do_raw_spin_trylock+0x270/0x270
[  293.416715]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  293.422254]  ? __cpuset_node_allowed+0x19b/0x660
[  293.427024]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  293.432735]  ? vmpressure+0x1a2/0x340
[  293.436553]  do_try_to_free_pages+0x3e7/0x1290
[  293.441137]  ? zap_class+0x640/0x640
[  293.444877]  ? shrink_node+0x16b0/0x16b0
[  293.448945]  ? __lock_is_held+0xb5/0x140
[  293.453020]  try_to_free_pages+0x4d0/0xb90
[  293.457260]  ? do_try_to_free_pages+0x1290/0x1290
[  293.462214]  ? lock_acquire+0x1ed/0x520
[  293.466190]  ? set_page_refcounted+0x280/0x280
[  293.470783]  ? lock_release+0xa00/0xa00
[  293.474771]  ? _raw_spin_unlock_irq+0x60/0x80
[  293.479278]  ? psi_memstall_enter+0x240/0x2b0
[  293.483782]  ? psi_memstall_tick+0x230/0x230
[  293.488207]  __alloc_pages_slowpath+0xa14/0x2e10
[  293.492993]  ? warn_alloc+0x120/0x120
[  293.496796]  ? mark_held_locks+0x130/0x130
[  293.501038]  ? find_get_entry+0xaae/0x1120
[  293.505292]  ? filemap_map_pages+0x1a20/0x1a20
[  293.509882]  ? zap_class+0x640/0x640
[  293.513602]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  293.519142]  ? check_preemption_disabled+0x48/0x280
[  293.524162]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.529705]  ? should_fail+0x22d/0xd01
[  293.533597]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  293.538702]  ? zap_class+0x640/0x640
[  293.542441]  ? __lock_is_held+0xb5/0x140
[  293.546514]  ? mark_held_locks+0x130/0x130
[  293.550763]  ? lock_release+0xa00/0xa00
[  293.554744]  ? perf_trace_sched_process_exec+0x860/0x860
[  293.560208]  ? xa_load+0x2ba/0x460
[  293.563764]  ? lock_downgrade+0x900/0x900
[  293.567919]  ? __might_sleep+0x95/0x190
[  293.571904]  __alloc_pages_nodemask+0xa80/0xde0
[  293.576582]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  293.581602]  ? __page_cache_alloc+0x191/0x5c0
[  293.586097]  ? xa_load+0x2e1/0x460
[  293.589641]  ? xa_clear_mark+0x40/0x40
[  293.593534]  ? zap_class+0x640/0x640
[  293.597256]  ? zap_class+0x640/0x640
[  293.600975]  ? zap_class+0x640/0x640
[  293.604689]  ? __do_page_cache_readahead+0x663/0x810
[  293.609799]  ? find_held_lock+0x36/0x1c0
[  293.613871]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  293.619446]  alloc_pages_current+0x173/0x350
[  293.623866]  __page_cache_alloc+0x38c/0x5c0
[  293.628185]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  293.633118]  ? kasan_check_read+0x11/0x20
[  293.637287]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.642588]  ? generic_perform_write+0x6a0/0x6a0
[  293.647346]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.652891]  ? check_preemption_disabled+0x48/0x280
[  293.657916]  filemap_fault+0x1595/0x25f0
[  293.661989]  ? __lock_page_or_retry+0xa00/0xa00
[  293.666665]  ? mark_held_locks+0x130/0x130
[  293.670915]  ? filemap_map_pages+0xd6b/0x1a20
[  293.675416]  ? lock_downgrade+0x900/0x900
[  293.679569]  ? check_preemption_disabled+0x48/0x280
[  293.684588]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  293.689516]  ? kasan_check_read+0x11/0x20
[  293.693664]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.698942]  ? rcu_softirq_qs+0x20/0x20
[  293.702936]  ? filemap_map_pages+0xd92/0x1a20
[  293.707446]  ? find_get_entries_tag+0x1400/0x1400
[  293.712291]  ? find_held_lock+0x36/0x1c0
[  293.716391]  ? lock_acquire+0x1ed/0x520
[  293.720378]  ? ext4_filemap_fault+0x7a/0xad
[  293.724707]  ? lock_release+0xa00/0xa00
[  293.728685]  ? perf_trace_sched_process_exec+0x860/0x860
[  293.734141]  ? print_usage_bug+0xc0/0xc0
[  293.738220]  ? down_read+0x8d/0x120
[  293.741847]  ? ext4_filemap_fault+0x7a/0xad
[  293.746170]  ? __down_interruptible+0x700/0x700
[  293.750846]  ? find_held_lock+0x36/0x1c0
[  293.754915]  ext4_filemap_fault+0x82/0xad
[  293.759070]  __do_fault+0x100/0x6b0
[  293.762700]  ? lock_downgrade+0x900/0x900
[  293.766854]  ? pmd_devmap_trans_unstable+0x220/0x220
[  293.771966]  ? kasan_check_read+0x11/0x20
[  293.776113]  ? do_raw_spin_unlock+0xa7/0x330
[  293.780524]  ? do_raw_spin_trylock+0x270/0x270
[  293.785123]  __handle_mm_fault+0x3ea0/0x5be0
[  293.789541]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  293.794397]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  293.798992]  ? zap_class+0x640/0x640
[  293.802705]  ? zap_class+0x640/0x640
[  293.806445]  ? __x64_sys_futex+0x53e/0x6a0
[  293.810688]  ? find_held_lock+0x36/0x1c0
[  293.814884]  ? handle_mm_fault+0x42a/0xc70
[  293.819127]  ? lock_downgrade+0x900/0x900
[  293.823283]  ? check_preemption_disabled+0x48/0x280
[  293.828305]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  293.833237]  ? kasan_check_read+0x11/0x20
[  293.837391]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  293.842669]  ? rcu_softirq_qs+0x20/0x20
[  293.846648]  ? trace_hardirqs_off_caller+0x310/0x310
[  293.851763]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  293.857307]  ? check_preemption_disabled+0x48/0x280
[  293.862364]  handle_mm_fault+0x54f/0xc70
[  293.866443]  ? __handle_mm_fault+0x5be0/0x5be0
[  293.871030]  ? find_vma+0x34/0x190
[  293.874578]  __do_page_fault+0x5e8/0xe60
[  293.878639]  ? trace_hardirqs_off+0xb8/0x310
[  293.883058]  do_page_fault+0xf2/0x7e0
[  293.886863]  ? vmalloc_sync_all+0x30/0x30
[  293.891016]  ? error_entry+0x70/0xd0
[  293.894734]  ? trace_hardirqs_off_caller+0xbb/0x310
[  293.899793]  ? trace_hardirqs_on_caller+0xc0/0x310
[  293.904742]  ? syscall_return_slowpath+0x5e0/0x5e0
[  293.909684]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.914532]  ? trace_hardirqs_on_caller+0x310/0x310
[  293.919549]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  293.925006]  ? prepare_exit_to_usermode+0x291/0x3b0
[  293.930022]  ? page_fault+0x8/0x30
[  293.933575]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  293.938422]  ? page_fault+0x8/0x30
[  293.941968]  page_fault+0x1e/0x30
[  293.945419] RIP: 0033:0x404068
[  293.948623] Code: Bad RIP value.
[  293.951990] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  293.957352] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  293.964633] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  293.971988] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  293.979257] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  293.986528] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  293.993843] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  293.993849] warn_alloc_show_mem: 1 callbacks suppressed
[  293.993856] Mem-Info:
[  294.001128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  294.006497] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  294.006497]  active_file:13 inactive_file:28 isolated_file:0
[  294.006497]  unevictable:0 dirty:1 writeback:0 unstable:0
[  294.006497]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  294.006497]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  294.006497]  free:13541 free_pcp:161 free_cma:0
[  294.008870] Call Trace:
[  294.018257] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  294.051270]  <IRQ>
[  294.051288]  dump_stack+0x244/0x39d
[  294.053850] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  294.081790]  ? dump_stack_print_info.cold.1+0x20/0x20
[  294.083920] lowmem_reserve[]: 0 2818 6321 6321
[  294.087549]  warn_alloc.cold.116+0xb7/0x1bd
[  294.113625] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  294.118813]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  294.123372] lowmem_reserve[]: 0 0 3503 3503
[  294.127689]  ? lock_downgrade+0x900/0x900
[  294.155250] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  294.160088]  ? trace_hardirqs_off+0xb8/0x310
[  294.164380] lowmem_reserve[]: 0 0 0 0
[  294.168524]  ? trace_hardirqs_off+0xb8/0x310
[  294.197644] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  294.202064]  __alloc_pages_slowpath+0x26e8/0x2e10
[  294.205835] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  294.210257]  ? warn_alloc+0x120/0x120
[  294.223737] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  294.228604]  ? print_usage_bug+0xc0/0xc0
[  294.243764] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  294.247557]  ? warn_alloc+0x120/0x120
[  294.262018] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  294.266065]  ? warn_alloc+0x120/0x120
[  294.274876] 4984 total pagecache pages
[  294.278671]  ? print_usage_bug+0xc0/0xc0
[  294.287231] 0 pages in swap cache
[  294.291019]  ? kvm_clock_read+0x18/0x30
[  294.294884] Swap cache stats: add 0, delete 0, find 0/0
[  294.298938]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  294.302365] Free swap  = 0kB
[  294.306346]  ? print_usage_bug+0xc0/0xc0
[  294.311691] Total swap = 0kB
[  294.316698]  ? __lock_acquire+0x62f/0x4c20
[  294.319694] 1965979 pages RAM
[  294.323760]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.326788] 0 pages HighMem/MovableOnly
[  294.331024]  ? should_fail+0x22d/0xd01
[  294.334123] 342853 pages reserved
[  294.339653]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.343617] 0 pages cma reserved
[  294.347674]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  294.351162] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  294.356372]  ? __lock_acquire+0x62f/0x4c20
[  294.359778] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  294.364823]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  294.371289] syz-fuzzer cpuset=/ mems_allowed=0
[  294.375516]  ? __lock_acquire+0x62f/0x4c20
[  294.399598]  ? should_fail+0x22d/0xd01
[  294.403524]  ? rcu_irq_exit+0x1a2/0x390
[  294.407525]  ? mark_held_locks+0x130/0x130
[  294.411777]  ? mark_held_locks+0x130/0x130
[  294.416025]  ? mark_held_locks+0xc7/0x130
[  294.420177]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  294.425193]  ? zap_class+0x640/0x640
[  294.428908]  ? print_usage_bug+0xc0/0xc0
[  294.432975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.438529]  ? check_preemption_disabled+0x48/0x280
[  294.443559]  ? __lock_is_held+0xb5/0x140
[  294.447632]  __alloc_pages_nodemask+0xa80/0xde0
[  294.452317]  ? zap_class+0x640/0x640
[  294.456042]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  294.461069]  ? find_held_lock+0x36/0x1c0
[  294.465142]  ? ____cache_alloc_node+0x1c7/0x1e0
[  294.469813]  ? lock_downgrade+0x900/0x900
[  294.473969]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.479513]  cache_grow_begin+0xa5/0x8c0
[  294.483575]  ? do_raw_spin_unlock+0xa7/0x330
[  294.487993]  fallback_alloc+0x204/0x2e0
[  294.491979]  ____cache_alloc_node+0x1c7/0x1e0
[  294.496481]  kmem_cache_alloc_node+0xe3/0x730
[  294.500976]  ? ipv6_get_ifaddr+0x42e/0x620
[  294.505227]  __alloc_skb+0x119/0x770
[  294.508942]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.514223]  ? netdev_alloc_frag+0x1f0/0x1f0
[  294.518638]  ? lock_downgrade+0x900/0x900
[  294.522806]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.528352]  ? refcount_sub_and_test_checked+0x203/0x310
[  294.533810]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  294.539265]  ? addrconf_rs_timer+0x690/0x690
[  294.543691]  ndisc_alloc_skb+0x144/0x340
[  294.547771]  ndisc_send_rs+0x331/0x6e0
[  294.551673]  addrconf_rs_timer+0x314/0x690
[  294.555916]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.560167]  call_timer_fn+0x272/0x920
[  294.564055]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.568296]  ? process_timeout+0x40/0x40
[  294.572367]  ? __run_timers+0x7da/0xc70
[  294.576345]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.580839]  ? _raw_spin_unlock_irq+0x27/0x80
[  294.585337]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.589573]  ? lockdep_hardirqs_on+0x296/0x5b0
[  294.594170]  ? trace_hardirqs_on+0xbd/0x310
[  294.598505]  ? kasan_check_read+0x11/0x20
[  294.602657]  ? __run_timers+0x7da/0xc70
[  294.606632]  ? trace_hardirqs_off_caller+0x310/0x310
[  294.611739]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.615993]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  294.620228]  __run_timers+0x7e5/0xc70
[  294.624041]  ? timer_fixup_init+0x70/0x70
[  294.628190]  ? kasan_check_read+0x11/0x20
[  294.632341]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  294.637621]  ? rcu_softirq_qs+0x20/0x20
[  294.641604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.647144]  ? check_preemption_disabled+0x48/0x280
[  294.652172]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  294.656935]  ? retint_kernel+0x2d/0x2d
[  294.660824]  ? trace_hardirqs_on_caller+0xc0/0x310
[  294.665763]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  294.670530]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  294.675986]  ? zap_class+0x640/0x640
[  294.679707]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.685249]  ? check_preemption_disabled+0x48/0x280
[  294.690311]  ? __lock_is_held+0xb5/0x140
[  294.694373]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.699912]  ? check_preemption_disabled+0x48/0x280
[  294.704933]  run_timer_softirq+0x52/0xb0
[  294.709000]  ? rcu_read_lock_sched_held+0x14f/0x180
[  294.714021]  __do_softirq+0x308/0xb7e
[  294.717825]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  294.722322]  ? lock_downgrade+0x900/0x900
[  294.726475]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  294.731591]  ? pvclock_read_flags+0x160/0x160
[  294.736092]  ? lapic_next_event+0x5a/0x90
[  294.740244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.745799]  ? kvm_clock_read+0x18/0x30
[  294.749788]  ? kvm_sched_clock_read+0x9/0x20
[  294.754204]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  294.759745]  ? check_preemption_disabled+0x48/0x280
[  294.764793]  irq_exit+0x17f/0x1c0
[  294.768252]  smp_apic_timer_interrupt+0x1cb/0x760
[  294.773094]  ? smp_reschedule_interrupt+0x109/0x650
[  294.778114]  ? smp_call_function_single_interrupt+0x650/0x650
[  294.783999]  ? interrupt_entry+0xb5/0xc0
[  294.788066]  ? trace_hardirqs_off_caller+0xbb/0x310
[  294.793081]  ? trace_hardirqs_off_caller+0xbb/0x310
[  294.798099]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.802942]  ? trace_hardirqs_on_caller+0x310/0x310
[  294.807958]  ? trace_hardirqs_on_caller+0x310/0x310
[  294.812981]  ? task_prio+0x50/0x50
[  294.816526]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  294.822068]  ? check_preemption_disabled+0x48/0x280
[  294.827094]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  294.831953]  apic_timer_interrupt+0xf/0x20
[  294.836182]  </IRQ>
[  294.838424] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  294.843358] 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
[  294.862261] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  294.869971] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  294.877261] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  294.884528] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  294.891812] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  294.899078] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  294.906387]  skb_clone+0x1bb/0x500
[  294.909963]  ? skb_split+0x11e0/0x11e0
[  294.913857]  ? preempt_notifier_register+0x200/0x200
[  294.918959]  ? __switch_to_asm+0x34/0x70
[  294.923021]  ? __switch_to_asm+0x34/0x70
[  294.927078]  ? __switch_to_asm+0x40/0x70
[  294.931137]  ? __switch_to_asm+0x34/0x70
[  294.935196]  ? __switch_to_asm+0x40/0x70
[  294.939254]  ? __switch_to_asm+0x40/0x70
[  294.943342]  ? __switch_to_asm+0x34/0x70
[  294.947561]  ? __switch_to_asm+0x34/0x70
[  294.951619]  ? __switch_to_asm+0x40/0x70
[  294.955717]  ? __switch_to_asm+0x34/0x70
[  294.959792]  bpf_clone_redirect+0xb9/0x490
[  294.964037]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  294.969060]  ? __sched_text_start+0x8/0x8
[  294.973209]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  294.977976]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  294.982739]  ? find_held_lock+0x36/0x1c0
[  294.986840]  ? lock_acquire+0x1ed/0x520
[  294.990814]  ? bpf_test_run+0x3cb/0x780
[  294.994799]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.000340]  ? check_preemption_disabled+0x48/0x280
[  295.005363]  ? kasan_check_read+0x11/0x20
[  295.009511]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.014798]  ? rcu_softirq_qs+0x20/0x20
[  295.018785]  ? preempt_schedule+0x4d/0x60
[  295.022937]  ? ___preempt_schedule+0x16/0x18
[  295.027358]  ? bpf_test_run+0x25d/0x780
[  295.031347]  ? netlink_diag_dump+0x2a0/0x2a0
[  295.035777]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.041316]  ? bpf_test_init.isra.10+0x70/0x100
[  295.045993]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  295.050779]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  295.055623]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  295.061162]  ? fput+0x130/0x1a0
[  295.064447]  ? __bpf_prog_get+0x9b/0x290
[  295.068511]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  295.073356]  ? bpf_prog_test_run+0x130/0x1a0
[  295.077780]  ? __x64_sys_bpf+0x3d8/0x520
[  295.081858]  ? bpf_prog_get+0x20/0x20
[  295.085684]  ? do_syscall_64+0x1b9/0x820
[  295.089746]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  295.095126]  ? syscall_return_slowpath+0x5e0/0x5e0
[  295.100060]  ? trace_hardirqs_on_caller+0x310/0x310
[  295.105078]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  295.110099]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  295.116782]  ? __switch_to_asm+0x40/0x70
[  295.120848]  ? __switch_to_asm+0x34/0x70
[  295.124916]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.129781]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  295.135167] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  295.135254] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  295.142093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  295.142099] Call Trace:
[  295.142105]  <IRQ>
[  295.142123]  dump_stack+0x244/0x39d
[  295.142142]  ? dump_stack_print_info.cold.1+0x20/0x20
[  295.148668] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  295.157974]  warn_alloc.cold.116+0xb7/0x1bd
[  295.160527] syz-executor4 cpuset=syz4 mems_allowed=0
[  295.162674]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  295.196195]  ? lock_downgrade+0x900/0x900
[  295.200357]  ? trace_hardirqs_off+0xb8/0x310
[  295.204779]  ? trace_hardirqs_off+0xb8/0x310
[  295.209200]  __alloc_pages_slowpath+0x26e8/0x2e10
[  295.214073]  ? warn_alloc+0x120/0x120
[  295.217879]  ? print_usage_bug+0xc0/0xc0
[  295.221942]  ? warn_alloc+0x120/0x120
[  295.225761]  ? warn_alloc+0x120/0x120
[  295.229565]  ? print_usage_bug+0xc0/0xc0
[  295.233642]  ? print_usage_bug+0xc0/0xc0
[  295.237709]  ? __lock_acquire+0x62f/0x4c20
[  295.241954]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.247493]  ? should_fail+0x22d/0xd01
[  295.251390]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.256497]  ? __lock_acquire+0x62f/0x4c20
[  295.260736]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  295.265851]  ? __lock_acquire+0x62f/0x4c20
[  295.270089]  ? should_fail+0x22d/0xd01
[  295.273979]  ? find_held_lock+0x36/0x1c0
[  295.278050]  ? mark_held_locks+0x130/0x130
[  295.282293]  ? mark_held_locks+0x130/0x130
[  295.286530]  ? zap_class+0x640/0x640
[  295.290246]  ? zap_class+0x640/0x640
[  295.293978]  ? print_usage_bug+0xc0/0xc0
[  295.298037]  ? do_raw_spin_unlock+0xa7/0x330
[  295.302445]  ? zap_class+0x640/0x640
[  295.306163]  ? print_usage_bug+0xc0/0xc0
[  295.310226]  ? wq_watchdog_touch+0x9c/0xfe
[  295.314463]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.320003]  ? check_preemption_disabled+0x48/0x280
[  295.325035]  ? __lock_is_held+0xb5/0x140
[  295.329103]  __alloc_pages_nodemask+0xa80/0xde0
[  295.333778]  ? zap_class+0x640/0x640
[  295.337504]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  295.342536]  ? find_held_lock+0x36/0x1c0
[  295.346608]  ? ____cache_alloc_node+0x1c7/0x1e0
[  295.351286]  ? lock_downgrade+0x900/0x900
[  295.355442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.360986]  cache_grow_begin+0xa5/0x8c0
[  295.365048]  ? do_raw_spin_unlock+0xa7/0x330
[  295.369466]  fallback_alloc+0x204/0x2e0
[  295.373453]  ____cache_alloc_node+0x1c7/0x1e0
[  295.377960]  kmem_cache_alloc_node+0xe3/0x730
[  295.382458]  ? ipv6_get_ifaddr+0x42e/0x620
[  295.386703]  __alloc_skb+0x119/0x770
[  295.390419]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.395704]  ? netdev_alloc_frag+0x1f0/0x1f0
[  295.400118]  ? lock_downgrade+0x900/0x900
[  295.404281]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.409834]  ? refcount_sub_and_test_checked+0x203/0x310
[  295.415296]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  295.420772]  ? addrconf_rs_timer+0x690/0x690
[  295.425195]  ndisc_alloc_skb+0x144/0x340
[  295.429270]  ndisc_send_rs+0x331/0x6e0
[  295.433169]  addrconf_rs_timer+0x314/0x690
[  295.437415]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.441665]  call_timer_fn+0x272/0x920
[  295.445558]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.449793]  ? process_timeout+0x40/0x40
[  295.453946]  ? mark_held_locks+0xc7/0x130
[  295.458098]  ? _raw_spin_unlock_irq+0x27/0x80
[  295.462680]  ? _raw_spin_unlock_irq+0x27/0x80
[  295.467174]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.471409]  ? lockdep_hardirqs_on+0x296/0x5b0
[  295.475998]  ? trace_hardirqs_on+0xbd/0x310
[  295.480321]  ? kasan_check_read+0x11/0x20
[  295.484469]  ? __run_timers+0x7da/0xc70
[  295.488449]  ? trace_hardirqs_off_caller+0x310/0x310
[  295.493561]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.497801]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  295.502038]  __run_timers+0x7e5/0xc70
[  295.505854]  ? timer_fixup_init+0x70/0x70
[  295.510006]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  295.515024]  ? zap_class+0x640/0x640
[  295.518744]  ? print_usage_bug+0xc0/0xc0
[  295.522821]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  295.528020]  ? find_held_lock+0x36/0x1c0
[  295.532088]  ? zap_class+0x640/0x640
[  295.535809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.541356]  ? check_preemption_disabled+0x48/0x280
[  295.546383]  ? __lock_is_held+0xb5/0x140
[  295.550451]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.555994]  ? check_preemption_disabled+0x48/0x280
[  295.561020]  run_timer_softirq+0x52/0xb0
[  295.565085]  ? rcu_read_lock_sched_held+0x14f/0x180
[  295.570102]  __do_softirq+0x308/0xb7e
[  295.573911]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  295.578407]  ? lock_downgrade+0x900/0x900
[  295.582560]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  295.587676]  ? pvclock_read_flags+0x160/0x160
[  295.592174]  ? lapic_next_event+0x5a/0x90
[  295.596330]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.601878]  ? kvm_clock_read+0x18/0x30
[  295.605853]  ? kvm_sched_clock_read+0x9/0x20
[  295.610270]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.615811]  ? check_preemption_disabled+0x48/0x280
[  295.620839]  irq_exit+0x17f/0x1c0
[  295.624302]  smp_apic_timer_interrupt+0x1cb/0x760
[  295.629145]  ? smp_reschedule_interrupt+0x109/0x650
[  295.634170]  ? smp_call_function_single_interrupt+0x650/0x650
[  295.640056]  ? interrupt_entry+0xb5/0xc0
[  295.644124]  ? trace_hardirqs_off_caller+0xbb/0x310
[  295.649144]  ? trace_hardirqs_off_caller+0xbb/0x310
[  295.654167]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.659017]  ? trace_hardirqs_on_caller+0x310/0x310
[  295.664033]  ? trace_hardirqs_on_caller+0x310/0x310
[  295.669055]  ? task_prio+0x50/0x50
[  295.672596]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  295.678135]  ? check_preemption_disabled+0x48/0x280
[  295.683161]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  295.688014]  apic_timer_interrupt+0xf/0x20
[  295.692245]  </IRQ>
[  295.694494] RIP: 0010:check_memory_region+0x121/0x1b0
[  295.699685] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  295.718588] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  295.726297] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  295.733569] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  295.740836] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  295.748107] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  295.755378] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  295.762665]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.767958]  kasan_check_read+0x11/0x20
[  295.771934]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  295.777037]  ? rcu_softirq_qs+0x20/0x20
[  295.781024]  rcu_is_watching+0x10/0x30
[  295.784915]  list_lru_count_one+0x362/0x450
[  295.789241]  ? list_lru_isolate_move+0x3c0/0x3c0
[  295.794001]  ? shmem_free_inode+0xd0/0xd0
[  295.798154]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  295.803693]  ? ubifs_shrink_count+0xc4/0x100
[  295.808112]  super_cache_count+0x153/0x2e0
[  295.812357]  do_shrink_slab+0x1b1/0xd30
[  295.816536]  ? lock_acquire+0x1ed/0x520
[  295.820521]  ? snapshot_refaults+0x290/0x290
[  295.824934]  ? lock_release+0xa00/0xa00
[  295.828916]  ? perf_trace_sched_process_exec+0x860/0x860
[  295.834381]  ? down_read_trylock+0xda/0x140
[  295.838699]  ? shrink_slab+0x207/0x8c0
[  295.842594]  ? downgrade_write+0x270/0x270
[  295.846844]  shrink_slab+0x389/0x8c0
[  295.850561]  ? shrink_active_list+0x1f00/0x1f00
[  295.855245]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  295.860883]  ? kasan_check_read+0x11/0x20
[  295.865030]  ? do_raw_spin_unlock+0xa7/0x330
[  295.869448]  ? ___preempt_schedule+0x16/0x18
[  295.873869]  ? _raw_spin_unlock+0x3f/0x50
[  295.878028]  shrink_node+0x431/0x16b0
[  295.881837]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  295.887144]  ? shrink_node_memcg+0x18f0/0x18f0
[  295.891728]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  295.896335]  ? trace_hardirqs_on+0xbd/0x310
[  295.900656]  ? vmpressure+0x271/0x340
[  295.904466]  ? do_raw_spin_trylock+0x270/0x270
[  295.909061]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  295.914603]  ? __cpuset_node_allowed+0x19b/0x660
[  295.919364]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  295.925076]  ? vmpressure+0x1a2/0x340
[  295.928887]  do_try_to_free_pages+0x3e7/0x1290
[  295.933474]  ? zap_class+0x640/0x640
[  295.937203]  ? shrink_node+0x16b0/0x16b0
[  295.941277]  ? __lock_is_held+0xb5/0x140
[  295.945353]  try_to_free_pages+0x4d0/0xb90
[  295.949593]  ? do_try_to_free_pages+0x1290/0x1290
[  295.954451]  ? lock_acquire+0x1ed/0x520
[  295.958428]  ? set_page_refcounted+0x280/0x280
[  295.963023]  ? lock_release+0xa00/0xa00
[  295.967001]  ? _raw_spin_unlock_irq+0x60/0x80
[  295.971496]  ? psi_memstall_enter+0x240/0x2b0
[  295.975993]  ? psi_memstall_tick+0x230/0x230
[  295.980415]  __alloc_pages_slowpath+0xa14/0x2e10
[  295.985200]  ? warn_alloc+0x120/0x120
[  295.989008]  ? mark_held_locks+0x130/0x130
[  295.993253]  ? find_get_entry+0xaae/0x1120
[  295.997504]  ? filemap_map_pages+0x1a20/0x1a20
[  296.002091]  ? zap_class+0x640/0x640
[  296.005817]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.011364]  ? check_preemption_disabled+0x48/0x280
[  296.016386]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.021931]  ? should_fail+0x22d/0xd01
[  296.025829]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  296.030942]  ? zap_class+0x640/0x640
[  296.034682]  ? __lock_is_held+0xb5/0x140
[  296.038750]  ? mark_held_locks+0x130/0x130
[  296.043006]  ? lock_release+0xa00/0xa00
[  296.047330]  ? perf_trace_sched_process_exec+0x860/0x860
[  296.052795]  ? xa_load+0x2ba/0x460
[  296.056344]  ? lock_downgrade+0x900/0x900
[  296.060498]  ? __might_sleep+0x95/0x190
[  296.064477]  __alloc_pages_nodemask+0xa80/0xde0
[  296.069158]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  296.074189]  ? __page_cache_alloc+0x191/0x5c0
[  296.078688]  ? xa_load+0x2e1/0x460
[  296.082234]  ? xa_clear_mark+0x40/0x40
[  296.086132]  ? zap_class+0x640/0x640
[  296.089857]  ? zap_class+0x640/0x640
[  296.093575]  ? zap_class+0x640/0x640
[  296.097296]  ? __do_page_cache_readahead+0x663/0x810
[  296.102405]  ? find_held_lock+0x36/0x1c0
[  296.106475]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  296.112019]  alloc_pages_current+0x173/0x350
[  296.116526]  __page_cache_alloc+0x38c/0x5c0
[  296.120846]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.125785]  ? kasan_check_read+0x11/0x20
[  296.129934]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.135219]  ? generic_perform_write+0x6a0/0x6a0
[  296.139977]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.145518]  ? check_preemption_disabled+0x48/0x280
[  296.150543]  filemap_fault+0x1595/0x25f0
[  296.154623]  ? __lock_page_or_retry+0xa00/0xa00
[  296.159302]  ? mark_held_locks+0x130/0x130
[  296.163549]  ? filemap_map_pages+0xd6b/0x1a20
[  296.168048]  ? lock_downgrade+0x900/0x900
[  296.172202]  ? check_preemption_disabled+0x48/0x280
[  296.177226]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.182161]  ? kasan_check_read+0x11/0x20
[  296.186311]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.191590]  ? rcu_softirq_qs+0x20/0x20
[  296.195583]  ? filemap_map_pages+0xd92/0x1a20
[  296.200094]  ? find_get_entries_tag+0x1400/0x1400
[  296.204941]  ? find_held_lock+0x36/0x1c0
[  296.209025]  ? lock_acquire+0x1ed/0x520
[  296.213006]  ? ext4_filemap_fault+0x7a/0xad
[  296.217349]  ? lock_release+0xa00/0xa00
[  296.221326]  ? perf_trace_sched_process_exec+0x860/0x860
[  296.226782]  ? print_usage_bug+0xc0/0xc0
[  296.230866]  ? down_read+0x8d/0x120
[  296.234495]  ? ext4_filemap_fault+0x7a/0xad
[  296.238824]  ? __down_interruptible+0x700/0x700
[  296.243501]  ? find_held_lock+0x36/0x1c0
[  296.247573]  ext4_filemap_fault+0x82/0xad
[  296.251724]  __do_fault+0x100/0x6b0
[  296.255369]  ? lock_downgrade+0x900/0x900
[  296.259517]  ? pmd_devmap_trans_unstable+0x220/0x220
[  296.264634]  ? kasan_check_read+0x11/0x20
[  296.268792]  ? do_raw_spin_unlock+0xa7/0x330
[  296.273199]  ? do_raw_spin_trylock+0x270/0x270
[  296.277816]  __handle_mm_fault+0x3ea0/0x5be0
[  296.282235]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  296.287095]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  296.291689]  ? zap_class+0x640/0x640
[  296.295407]  ? zap_class+0x640/0x640
[  296.299121]  ? __x64_sys_futex+0x53e/0x6a0
[  296.303361]  ? find_held_lock+0x36/0x1c0
[  296.307431]  ? handle_mm_fault+0x42a/0xc70
[  296.311670]  ? lock_downgrade+0x900/0x900
[  296.315825]  ? check_preemption_disabled+0x48/0x280
[  296.320846]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  296.325783]  ? kasan_check_read+0x11/0x20
[  296.329931]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  296.335213]  ? rcu_softirq_qs+0x20/0x20
[  296.339186]  ? trace_hardirqs_off_caller+0x310/0x310
[  296.344306]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.349845]  ? check_preemption_disabled+0x48/0x280
[  296.354874]  handle_mm_fault+0x54f/0xc70
[  296.358940]  ? __handle_mm_fault+0x5be0/0x5be0
[  296.363528]  ? find_vma+0x34/0x190
[  296.367074]  __do_page_fault+0x5e8/0xe60
[  296.371140]  ? trace_hardirqs_off+0xb8/0x310
[  296.375558]  do_page_fault+0xf2/0x7e0
[  296.379394]  ? vmalloc_sync_all+0x30/0x30
[  296.383548]  ? error_entry+0x70/0xd0
[  296.387269]  ? trace_hardirqs_off_caller+0xbb/0x310
[  296.392291]  ? trace_hardirqs_on_caller+0xc0/0x310
[  296.397221]  ? syscall_return_slowpath+0x5e0/0x5e0
[  296.402156]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.407004]  ? trace_hardirqs_on_caller+0x310/0x310
[  296.412025]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  296.417486]  ? prepare_exit_to_usermode+0x291/0x3b0
[  296.422515]  ? page_fault+0x8/0x30
[  296.426063]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  296.430909]  ? page_fault+0x8/0x30
[  296.434450]  page_fault+0x1e/0x30
[  296.437906] RIP: 0033:0x404068
[  296.441115] Code: Bad RIP value.
[  296.444479] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  296.449841] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  296.457114] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  296.464386] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  296.471656] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  296.478927] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  296.486222] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  296.486227] warn_alloc_show_mem: 1 callbacks suppressed
[  296.486234] Mem-Info:
[  296.493530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  296.498898] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  296.498898]  active_file:13 inactive_file:28 isolated_file:0
[  296.498898]  unevictable:0 dirty:1 writeback:0 unstable:0
[  296.498898]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  296.498898]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  296.498898]  free:13541 free_pcp:161 free_cma:0
[  296.501273] Call Trace:
[  296.510664] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  296.543678]  <IRQ>
[  296.546247] 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
[  296.574183]  dump_stack+0x244/0x39d
[  296.576307] lowmem_reserve[]: 0 2818 6321 6321
[  296.602426]  ? dump_stack_print_info.cold.1+0x20/0x20
[  296.606029] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  296.610618]  warn_alloc.cold.116+0xb7/0x1bd
[  296.615784] lowmem_reserve[]: 0 0 3503 3503
[  296.643368]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  296.647663] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  296.651980]  ? lock_downgrade+0x900/0x900
[  296.656796] lowmem_reserve[]: 0 0 0 0
[  296.685944]  ? trace_hardirqs_off+0xb8/0x310
[  296.690062] 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
[  296.693949]  ? trace_hardirqs_off+0xb8/0x310
[  296.698333] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  296.711854]  __alloc_pages_slowpath+0x26e8/0x2e10
[  296.716238] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  296.731429]  ? warn_alloc+0x120/0x120
[  296.736233] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  296.750704]  ? print_usage_bug+0xc0/0xc0
[  296.754484] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  296.763306]  ? warn_alloc+0x120/0x120
[  296.767345] 4984 total pagecache pages
[  296.775911]  ? warn_alloc+0x120/0x120
[  296.779693] 0 pages in swap cache
[  296.783566]  ? print_usage_bug+0xc0/0xc0
[  296.787349] Swap cache stats: add 0, delete 0, find 0/0
[  296.790800]  ? print_usage_bug+0xc0/0xc0
[  296.794836] Free swap  = 0kB
[  296.800215]  ? __lock_acquire+0x62f/0x4c20
[  296.804250] Total swap = 0kB
[  296.807265]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  296.811476] 1965979 pages RAM
[  296.814489]  ? should_fail+0x22d/0xd01
[  296.820000] 0 pages HighMem/MovableOnly
[  296.823102]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  296.826966] 342853 pages reserved
[  296.830931]  ? __lock_acquire+0x62f/0x4c20
[  296.836012] 0 pages cma reserved
[  296.839457]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  296.843732] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  296.847026]  ? __lock_acquire+0x62f/0x4c20
[  296.847042]  ? should_fail+0x22d/0xd01
[  296.852213] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  296.858617]  ? find_held_lock+0x36/0x1c0
[  296.862835] syz-fuzzer cpuset=/ mems_allowed=0
[  296.866719]  ? mark_held_locks+0x130/0x130
[  296.889772]  ? mark_held_locks+0x130/0x130
[  296.894015]  ? zap_class+0x640/0x640
[  296.897734]  ? zap_class+0x640/0x640
[  296.901465]  ? print_usage_bug+0xc0/0xc0
[  296.905526]  ? do_raw_spin_unlock+0xa7/0x330
[  296.909981]  ? zap_class+0x640/0x640
[  296.913696]  ? print_usage_bug+0xc0/0xc0
[  296.917770]  ? wq_watchdog_touch+0x9c/0xfe
[  296.922013]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.927553]  ? check_preemption_disabled+0x48/0x280
[  296.932579]  ? __lock_is_held+0xb5/0x140
[  296.936651]  __alloc_pages_nodemask+0xa80/0xde0
[  296.941319]  ? zap_class+0x640/0x640
[  296.945136]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  296.950161]  ? find_held_lock+0x36/0x1c0
[  296.954233]  ? ____cache_alloc_node+0x1c7/0x1e0
[  296.958906]  ? lock_downgrade+0x900/0x900
[  296.963062]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  296.968608]  cache_grow_begin+0xa5/0x8c0
[  296.972672]  ? do_raw_spin_unlock+0xa7/0x330
[  296.977088]  fallback_alloc+0x204/0x2e0
[  296.981073]  ____cache_alloc_node+0x1c7/0x1e0
[  296.985581]  kmem_cache_alloc_node+0xe3/0x730
[  296.990082]  ? ipv6_get_ifaddr+0x42e/0x620
[  296.994331]  __alloc_skb+0x119/0x770
[  296.998044]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.003327]  ? netdev_alloc_frag+0x1f0/0x1f0
[  297.007738]  ? lock_downgrade+0x900/0x900
[  297.011906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.017446]  ? refcount_sub_and_test_checked+0x203/0x310
[  297.022901]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  297.028351]  ? addrconf_rs_timer+0x690/0x690
[  297.032790]  ndisc_alloc_skb+0x144/0x340
[  297.036859]  ndisc_send_rs+0x331/0x6e0
[  297.040761]  addrconf_rs_timer+0x314/0x690
[  297.045017]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.049294]  call_timer_fn+0x272/0x920
[  297.053183]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.057435]  ? process_timeout+0x40/0x40
[  297.061506]  ? __run_timers+0x7da/0xc70
[  297.065482]  ? _raw_spin_unlock_irq+0x27/0x80
[  297.069976]  ? _raw_spin_unlock_irq+0x27/0x80
[  297.074472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.078711]  ? lockdep_hardirqs_on+0x296/0x5b0
[  297.083304]  ? trace_hardirqs_on+0xbd/0x310
[  297.087626]  ? kasan_check_read+0x11/0x20
[  297.091784]  ? __run_timers+0x7da/0xc70
[  297.095776]  ? trace_hardirqs_off_caller+0x310/0x310
[  297.100887]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.105131]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.109370]  __run_timers+0x7e5/0xc70
[  297.113184]  ? timer_fixup_init+0x70/0x70
[  297.117347]  ? kasan_check_read+0x11/0x20
[  297.121495]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.126792]  ? rcu_softirq_qs+0x20/0x20
[  297.130793]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.136334]  ? check_preemption_disabled+0x48/0x280
[  297.141356]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  297.146116]  ? retint_kernel+0x2d/0x2d
[  297.150005]  ? trace_hardirqs_on_caller+0xc0/0x310
[  297.154940]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  297.159696]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  297.165152]  ? zap_class+0x640/0x640
[  297.168873]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.174412]  ? check_preemption_disabled+0x48/0x280
[  297.179441]  ? __lock_is_held+0xb5/0x140
[  297.183504]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.189042]  ? check_preemption_disabled+0x48/0x280
[  297.194063]  run_timer_softirq+0x52/0xb0
[  297.198130]  ? rcu_read_lock_sched_held+0x14f/0x180
[  297.203148]  __do_softirq+0x308/0xb7e
[  297.206952]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  297.211450]  ? lock_downgrade+0x900/0x900
[  297.215602]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  297.220717]  ? pvclock_read_flags+0x160/0x160
[  297.225216]  ? lapic_next_event+0x5a/0x90
[  297.229365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.234909]  ? kvm_clock_read+0x18/0x30
[  297.238882]  ? kvm_sched_clock_read+0x9/0x20
[  297.243294]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.248833]  ? check_preemption_disabled+0x48/0x280
[  297.253862]  irq_exit+0x17f/0x1c0
[  297.257316]  smp_apic_timer_interrupt+0x1cb/0x760
[  297.262162]  ? smp_reschedule_interrupt+0x109/0x650
[  297.267180]  ? smp_call_function_single_interrupt+0x650/0x650
[  297.273067]  ? interrupt_entry+0xb5/0xc0
[  297.277130]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.282153]  ? trace_hardirqs_off_caller+0xbb/0x310
[  297.287189]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.292035]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.297055]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.302077]  ? task_prio+0x50/0x50
[  297.305619]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.311159]  ? check_preemption_disabled+0x48/0x280
[  297.316183]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.321039]  apic_timer_interrupt+0xf/0x20
[  297.325270]  </IRQ>
[  297.327513] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  297.332456] 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
[  297.351355] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  297.359064] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  297.366331] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  297.373598] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  297.380868] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  297.388139] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  297.395444]  skb_clone+0x1bb/0x500
[  297.398992]  ? skb_split+0x11e0/0x11e0
[  297.402886]  ? preempt_notifier_register+0x200/0x200
[  297.407992]  ? __switch_to_asm+0x34/0x70
[  297.412051]  ? __switch_to_asm+0x34/0x70
[  297.416111]  ? __switch_to_asm+0x40/0x70
[  297.420171]  ? __switch_to_asm+0x34/0x70
[  297.424231]  ? __switch_to_asm+0x40/0x70
[  297.428295]  ? __switch_to_asm+0x40/0x70
[  297.432362]  ? __switch_to_asm+0x34/0x70
[  297.436421]  ? __switch_to_asm+0x34/0x70
[  297.440483]  ? __switch_to_asm+0x40/0x70
[  297.444541]  ? __switch_to_asm+0x34/0x70
[  297.448607]  bpf_clone_redirect+0xb9/0x490
[  297.452855]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  297.457878]  ? __sched_text_start+0x8/0x8
[  297.462029]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  297.466804]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  297.471568]  ? find_held_lock+0x36/0x1c0
[  297.475643]  ? lock_acquire+0x1ed/0x520
[  297.479617]  ? bpf_test_run+0x3cb/0x780
[  297.483604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.489173]  ? check_preemption_disabled+0x48/0x280
[  297.494194]  ? kasan_check_read+0x11/0x20
[  297.498346]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.503625]  ? rcu_softirq_qs+0x20/0x20
[  297.507600]  ? preempt_schedule+0x4d/0x60
[  297.511751]  ? ___preempt_schedule+0x16/0x18
[  297.516189]  ? bpf_test_run+0x25d/0x780
[  297.520178]  ? netlink_diag_dump+0x2a0/0x2a0
[  297.524595]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.530132]  ? bpf_test_init.isra.10+0x70/0x100
[  297.534811]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  297.539576]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  297.544423]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  297.549964]  ? fput+0x130/0x1a0
[  297.553243]  ? __bpf_prog_get+0x9b/0x290
[  297.557311]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  297.562151]  ? bpf_prog_test_run+0x130/0x1a0
[  297.566565]  ? __x64_sys_bpf+0x3d8/0x520
[  297.570629]  ? bpf_prog_get+0x20/0x20
[  297.574448]  ? do_syscall_64+0x1b9/0x820
[  297.578538]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  297.583905]  ? syscall_return_slowpath+0x5e0/0x5e0
[  297.588842]  ? trace_hardirqs_on_caller+0x310/0x310
[  297.593864]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  297.598883]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  297.605546]  ? __switch_to_asm+0x40/0x70
[  297.609605]  ? __switch_to_asm+0x34/0x70
[  297.613673]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  297.618525]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  297.623908] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  297.623986] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  297.630852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  297.630857] Call Trace:
[  297.630864]  <IRQ>
[  297.630881]  dump_stack+0x244/0x39d
[  297.630901]  ? dump_stack_print_info.cold.1+0x20/0x20
[  297.637428] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  297.646734]  warn_alloc.cold.116+0xb7/0x1bd
[  297.649287] syz-executor4 cpuset=syz4 mems_allowed=0
[  297.651431]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  297.684905]  ? lock_downgrade+0x900/0x900
[  297.689061]  ? trace_hardirqs_off+0xb8/0x310
[  297.693477]  ? trace_hardirqs_off+0xb8/0x310
[  297.697896]  __alloc_pages_slowpath+0x26e8/0x2e10
[  297.702778]  ? warn_alloc+0x120/0x120
[  297.706587]  ? print_usage_bug+0xc0/0xc0
[  297.710652]  ? warn_alloc+0x120/0x120
[  297.714462]  ? warn_alloc+0x120/0x120
[  297.718275]  ? print_usage_bug+0xc0/0xc0
[  297.722339]  ? kvm_clock_read+0x18/0x30
[  297.726319]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  297.731337]  ? print_usage_bug+0xc0/0xc0
[  297.735400]  ? __lock_acquire+0x62f/0x4c20
[  297.739645]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  297.745188]  ? should_fail+0x22d/0xd01
[  297.749075]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.754355]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  297.759459]  ? __lock_acquire+0x62f/0x4c20
[  297.763702]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  297.768810]  ? __lock_acquire+0x62f/0x4c20
[  297.773044]  ? should_fail+0x22d/0xd01
[  297.776930]  ? rcu_irq_exit+0x1a2/0x390
[  297.780915]  ? mark_held_locks+0x130/0x130
[  297.785155]  ? mark_held_locks+0x130/0x130
[  297.789397]  ? mark_held_locks+0xc7/0x130
[  297.793548]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  297.798564]  ? zap_class+0x640/0x640
[  297.802287]  ? print_usage_bug+0xc0/0xc0
[  297.806356]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.811896]  ? check_preemption_disabled+0x48/0x280
[  297.817138]  ? __lock_is_held+0xb5/0x140
[  297.821236]  __alloc_pages_nodemask+0xa80/0xde0
[  297.825912]  ? zap_class+0x640/0x640
[  297.829633]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  297.834660]  ? find_held_lock+0x36/0x1c0
[  297.838737]  ? ____cache_alloc_node+0x1c7/0x1e0
[  297.843418]  ? lock_downgrade+0x900/0x900
[  297.847578]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.853125]  cache_grow_begin+0xa5/0x8c0
[  297.857186]  ? do_raw_spin_unlock+0xa7/0x330
[  297.861606]  fallback_alloc+0x204/0x2e0
[  297.865588]  ____cache_alloc_node+0x1c7/0x1e0
[  297.870092]  kmem_cache_alloc_node+0xe3/0x730
[  297.874588]  ? ipv6_get_ifaddr+0x42e/0x620
[  297.878837]  __alloc_skb+0x119/0x770
[  297.882554]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  297.887849]  ? netdev_alloc_frag+0x1f0/0x1f0
[  297.892290]  ? lock_downgrade+0x900/0x900
[  297.896450]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  297.901994]  ? refcount_sub_and_test_checked+0x203/0x310
[  297.907451]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  297.912904]  ? addrconf_rs_timer+0x690/0x690
[  297.917325]  ndisc_alloc_skb+0x144/0x340
[  297.921391]  ndisc_send_rs+0x331/0x6e0
[  297.925300]  addrconf_rs_timer+0x314/0x690
[  297.929546]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.933799]  call_timer_fn+0x272/0x920
[  297.937692]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.941928]  ? process_timeout+0x40/0x40
[  297.945998]  ? mark_held_locks+0xc7/0x130
[  297.950151]  ? _raw_spin_unlock_irq+0x27/0x80
[  297.954647]  ? _raw_spin_unlock_irq+0x27/0x80
[  297.959142]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.963385]  ? lockdep_hardirqs_on+0x296/0x5b0
[  297.967971]  ? trace_hardirqs_on+0xbd/0x310
[  297.972299]  ? kasan_check_read+0x11/0x20
[  297.976451]  ? __run_timers+0x7da/0xc70
[  297.980431]  ? trace_hardirqs_off_caller+0x310/0x310
[  297.985542]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.989787]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  297.994022]  __run_timers+0x7e5/0xc70
[  297.997839]  ? timer_fixup_init+0x70/0x70
[  298.001994]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  298.007012]  ? zap_class+0x640/0x640
[  298.010733]  ? print_usage_bug+0xc0/0xc0
[  298.014808]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  298.020007]  ? find_held_lock+0x36/0x1c0
[  298.024073]  ? zap_class+0x640/0x640
[  298.027801]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.033345]  ? check_preemption_disabled+0x48/0x280
[  298.038401]  ? __lock_is_held+0xb5/0x140
[  298.042463]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.048004]  ? check_preemption_disabled+0x48/0x280
[  298.053033]  run_timer_softirq+0x52/0xb0
[  298.057095]  ? rcu_read_lock_sched_held+0x14f/0x180
[  298.062112]  __do_softirq+0x308/0xb7e
[  298.065933]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  298.070444]  ? lock_downgrade+0x900/0x900
[  298.074596]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  298.079710]  ? pvclock_read_flags+0x160/0x160
[  298.084213]  ? lapic_next_event+0x5a/0x90
[  298.088365]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.093914]  ? kvm_clock_read+0x18/0x30
[  298.097889]  ? kvm_sched_clock_read+0x9/0x20
[  298.102299]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.107856]  ? check_preemption_disabled+0x48/0x280
[  298.112884]  irq_exit+0x17f/0x1c0
[  298.116345]  smp_apic_timer_interrupt+0x1cb/0x760
[  298.121190]  ? smp_reschedule_interrupt+0x109/0x650
[  298.126212]  ? smp_call_function_single_interrupt+0x650/0x650
[  298.132098]  ? interrupt_entry+0xb5/0xc0
[  298.136165]  ? trace_hardirqs_off_caller+0xbb/0x310
[  298.141184]  ? trace_hardirqs_off_caller+0xbb/0x310
[  298.146238]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.151099]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.156117]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.161136]  ? task_prio+0x50/0x50
[  298.164678]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.170216]  ? check_preemption_disabled+0x48/0x280
[  298.175239]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.180097]  apic_timer_interrupt+0xf/0x20
[  298.184343]  </IRQ>
[  298.186609] RIP: 0010:check_memory_region+0x121/0x1b0
[  298.191806] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  298.210708] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  298.218420] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  298.225686] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  298.232956] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  298.240242] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  298.247528] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  298.254813]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.260100]  kasan_check_read+0x11/0x20
[  298.264079]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.269183]  ? rcu_softirq_qs+0x20/0x20
[  298.273172]  rcu_is_watching+0x10/0x30
[  298.277066]  list_lru_count_one+0x362/0x450
[  298.281390]  ? list_lru_isolate_move+0x3c0/0x3c0
[  298.286146]  ? shmem_free_inode+0xd0/0xd0
[  298.290302]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.295843]  ? ubifs_shrink_count+0xc4/0x100
[  298.300260]  super_cache_count+0x153/0x2e0
[  298.304510]  do_shrink_slab+0x1b1/0xd30
[  298.308506]  ? lock_acquire+0x1ed/0x520
[  298.312491]  ? snapshot_refaults+0x290/0x290
[  298.316903]  ? lock_release+0xa00/0xa00
[  298.320886]  ? perf_trace_sched_process_exec+0x860/0x860
[  298.326348]  ? down_read_trylock+0xda/0x140
[  298.330695]  ? shrink_slab+0x207/0x8c0
[  298.334597]  ? downgrade_write+0x270/0x270
[  298.338843]  shrink_slab+0x389/0x8c0
[  298.342556]  ? shrink_active_list+0x1f00/0x1f00
[  298.347252]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  298.352886]  ? kasan_check_read+0x11/0x20
[  298.357054]  ? do_raw_spin_unlock+0xa7/0x330
[  298.361474]  ? ___preempt_schedule+0x16/0x18
[  298.365996]  ? _raw_spin_unlock+0x3f/0x50
[  298.370151]  shrink_node+0x431/0x16b0
[  298.373957]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  298.379262]  ? shrink_node_memcg+0x18f0/0x18f0
[  298.383861]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  298.388451]  ? trace_hardirqs_on+0xbd/0x310
[  298.392784]  ? vmpressure+0x271/0x340
[  298.396595]  ? do_raw_spin_trylock+0x270/0x270
[  298.401185]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  298.406737]  ? __cpuset_node_allowed+0x19b/0x660
[  298.411506]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  298.417216]  ? vmpressure+0x1a2/0x340
[  298.421026]  do_try_to_free_pages+0x3e7/0x1290
[  298.425610]  ? zap_class+0x640/0x640
[  298.429345]  ? shrink_node+0x16b0/0x16b0
[  298.433423]  ? __lock_is_held+0xb5/0x140
[  298.437530]  try_to_free_pages+0x4d0/0xb90
[  298.441777]  ? do_try_to_free_pages+0x1290/0x1290
[  298.446642]  ? lock_acquire+0x1ed/0x520
[  298.450619]  ? set_page_refcounted+0x280/0x280
[  298.455208]  ? lock_release+0xa00/0xa00
[  298.459186]  ? _raw_spin_unlock_irq+0x60/0x80
[  298.463683]  ? psi_memstall_enter+0x240/0x2b0
[  298.468184]  ? psi_memstall_tick+0x230/0x230
[  298.472620]  __alloc_pages_slowpath+0xa14/0x2e10
[  298.477410]  ? warn_alloc+0x120/0x120
[  298.481215]  ? mark_held_locks+0x130/0x130
[  298.485458]  ? find_get_entry+0xaae/0x1120
[  298.489703]  ? filemap_map_pages+0x1a20/0x1a20
[  298.494304]  ? zap_class+0x640/0x640
[  298.498033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  298.503589]  ? check_preemption_disabled+0x48/0x280
[  298.508614]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.514156]  ? should_fail+0x22d/0xd01
[  298.518054]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  298.523162]  ? zap_class+0x640/0x640
[  298.526902]  ? __lock_is_held+0xb5/0x140
[  298.530976]  ? mark_held_locks+0x130/0x130
[  298.535215]  ? lock_release+0xa00/0xa00
[  298.539190]  ? perf_trace_sched_process_exec+0x860/0x860
[  298.544644]  ? xa_load+0x2ba/0x460
[  298.548190]  ? lock_downgrade+0x900/0x900
[  298.552342]  ? __might_sleep+0x95/0x190
[  298.556325]  __alloc_pages_nodemask+0xa80/0xde0
[  298.561002]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  298.566023]  ? __page_cache_alloc+0x191/0x5c0
[  298.570518]  ? xa_load+0x2e1/0x460
[  298.574061]  ? xa_clear_mark+0x40/0x40
[  298.577956]  ? zap_class+0x640/0x640
[  298.581681]  ? zap_class+0x640/0x640
[  298.585425]  ? zap_class+0x640/0x640
[  298.589160]  ? __do_page_cache_readahead+0x663/0x810
[  298.594278]  ? find_held_lock+0x36/0x1c0
[  298.598343]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  298.603886]  alloc_pages_current+0x173/0x350
[  298.608355]  __page_cache_alloc+0x38c/0x5c0
[  298.612693]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  298.617625]  ? kasan_check_read+0x11/0x20
[  298.621782]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.627066]  ? generic_perform_write+0x6a0/0x6a0
[  298.631825]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.637364]  ? check_preemption_disabled+0x48/0x280
[  298.642415]  filemap_fault+0x1595/0x25f0
[  298.646494]  ? __lock_page_or_retry+0xa00/0xa00
[  298.651167]  ? mark_held_locks+0x130/0x130
[  298.655410]  ? filemap_map_pages+0xd6b/0x1a20
[  298.659928]  ? lock_downgrade+0x900/0x900
[  298.664078]  ? check_preemption_disabled+0x48/0x280
[  298.669098]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  298.674027]  ? kasan_check_read+0x11/0x20
[  298.678189]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.683468]  ? rcu_softirq_qs+0x20/0x20
[  298.687458]  ? filemap_map_pages+0xd92/0x1a20
[  298.691967]  ? find_get_entries_tag+0x1400/0x1400
[  298.696808]  ? find_held_lock+0x36/0x1c0
[  298.700901]  ? lock_acquire+0x1ed/0x520
[  298.704877]  ? ext4_filemap_fault+0x7a/0xad
[  298.709208]  ? lock_release+0xa00/0xa00
[  298.713193]  ? perf_trace_sched_process_exec+0x860/0x860
[  298.718658]  ? print_usage_bug+0xc0/0xc0
[  298.722735]  ? down_read+0x8d/0x120
[  298.726367]  ? ext4_filemap_fault+0x7a/0xad
[  298.730689]  ? __down_interruptible+0x700/0x700
[  298.735388]  ? find_held_lock+0x36/0x1c0
[  298.739470]  ext4_filemap_fault+0x82/0xad
[  298.743623]  __do_fault+0x100/0x6b0
[  298.747262]  ? lock_downgrade+0x900/0x900
[  298.751413]  ? pmd_devmap_trans_unstable+0x220/0x220
[  298.756524]  ? kasan_check_read+0x11/0x20
[  298.760671]  ? do_raw_spin_unlock+0xa7/0x330
[  298.765079]  ? do_raw_spin_trylock+0x270/0x270
[  298.769679]  __handle_mm_fault+0x3ea0/0x5be0
[  298.774099]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  298.778953]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  298.783550]  ? zap_class+0x640/0x640
[  298.787273]  ? zap_class+0x640/0x640
[  298.790990]  ? __x64_sys_futex+0x53e/0x6a0
[  298.795233]  ? find_held_lock+0x36/0x1c0
[  298.799315]  ? handle_mm_fault+0x42a/0xc70
[  298.803556]  ? lock_downgrade+0x900/0x900
[  298.807706]  ? check_preemption_disabled+0x48/0x280
[  298.812727]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  298.817668]  ? kasan_check_read+0x11/0x20
[  298.821817]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  298.827104]  ? rcu_softirq_qs+0x20/0x20
[  298.831079]  ? trace_hardirqs_off_caller+0x310/0x310
[  298.836185]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  298.841724]  ? check_preemption_disabled+0x48/0x280
[  298.846765]  handle_mm_fault+0x54f/0xc70
[  298.850833]  ? __handle_mm_fault+0x5be0/0x5be0
[  298.855419]  ? find_vma+0x34/0x190
[  298.858980]  __do_page_fault+0x5e8/0xe60
[  298.863045]  ? trace_hardirqs_off+0xb8/0x310
[  298.867463]  do_page_fault+0xf2/0x7e0
[  298.871274]  ? vmalloc_sync_all+0x30/0x30
[  298.875422]  ? error_entry+0x70/0xd0
[  298.879138]  ? trace_hardirqs_off_caller+0xbb/0x310
[  298.884153]  ? trace_hardirqs_on_caller+0xc0/0x310
[  298.889088]  ? syscall_return_slowpath+0x5e0/0x5e0
[  298.894046]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.898892]  ? trace_hardirqs_on_caller+0x310/0x310
[  298.903908]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  298.909367]  ? prepare_exit_to_usermode+0x291/0x3b0
[  298.914401]  ? page_fault+0x8/0x30
[  298.917948]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  298.922798]  ? page_fault+0x8/0x30
[  298.926346]  page_fault+0x1e/0x30
[  298.929799] RIP: 0033:0x404068
[  298.933007] Code: Bad RIP value.
[  298.936373] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  298.941734] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  298.949490] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  298.956770] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  298.964043] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  298.971310] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  298.978608] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  298.978614] warn_alloc_show_mem: 1 callbacks suppressed
[  298.978621] Mem-Info:
[  298.985898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  298.991273] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  298.991273]  active_file:13 inactive_file:28 isolated_file:0
[  298.991273]  unevictable:0 dirty:1 writeback:0 unstable:0
[  298.991273]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  298.991273]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  298.991273]  free:13541 free_pcp:161 free_cma:0
[  298.993643] Call Trace:
[  299.003031] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  299.036043]  <IRQ>
[  299.038615] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  299.066554]  dump_stack+0x244/0x39d
[  299.068691] lowmem_reserve[]: 0 2818 6321 6321
[  299.094801]  ? dump_stack_print_info.cold.1+0x20/0x20
[  299.098401] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  299.102982]  warn_alloc.cold.116+0xb7/0x1bd
[  299.108139] lowmem_reserve[]: 0 0 3503 3503
[  299.135721]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  299.140016] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  299.144332]  ? lock_downgrade+0x900/0x900
[  299.149263] lowmem_reserve[]: 0 0 0 0
[  299.178408]  ? trace_hardirqs_off+0xb8/0x310
[  299.182529] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  299.186325]  ? trace_hardirqs_off+0xb8/0x310
[  299.190714] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  299.204238]  __alloc_pages_slowpath+0x26e8/0x2e10
[  299.208619] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  299.223821]  ? warn_alloc+0x120/0x120
[  299.228626] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  299.243094]  ? print_usage_bug+0xc0/0xc0
[  299.246880] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  299.255705]  ? warn_alloc+0x120/0x120
[  299.259743] 4984 total pagecache pages
[  299.268318]  ? warn_alloc+0x120/0x120
[  299.272103] 0 pages in swap cache
[  299.275978]  ? print_usage_bug+0xc0/0xc0
[  299.279763] Swap cache stats: add 0, delete 0, find 0/0
[  299.283213]  ? print_usage_bug+0xc0/0xc0
[  299.287249] Free swap  = 0kB
[  299.292618]  ? __lock_acquire+0x62f/0x4c20
[  299.296658] Total swap = 0kB
[  299.299671]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.303880] 1965979 pages RAM
[  299.306910]  ? should_fail+0x22d/0xd01
[  299.312423] 0 pages HighMem/MovableOnly
[  299.315549]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  299.319411] 342853 pages reserved
[  299.323384]  ? __lock_acquire+0x62f/0x4c20
[  299.328464] 0 pages cma reserved
[  299.331923]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  299.336197] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  299.339488]  ? __lock_acquire+0x62f/0x4c20
[  299.339505]  ? should_fail+0x22d/0xd01
[  299.344672] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  299.351071]  ? find_held_lock+0x36/0x1c0
[  299.355288] syz-fuzzer cpuset=/ mems_allowed=0
[  299.359174]  ? mark_held_locks+0x130/0x130
[  299.382235]  ? mark_held_locks+0x130/0x130
[  299.386473]  ? zap_class+0x640/0x640
[  299.390189]  ? zap_class+0x640/0x640
[  299.393908]  ? print_usage_bug+0xc0/0xc0
[  299.397968]  ? do_raw_spin_unlock+0xa7/0x330
[  299.402376]  ? zap_class+0x640/0x640
[  299.406095]  ? print_usage_bug+0xc0/0xc0
[  299.410166]  ? wq_watchdog_touch+0x9c/0xfe
[  299.414407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.419976]  ? check_preemption_disabled+0x48/0x280
[  299.425017]  ? __lock_is_held+0xb5/0x140
[  299.429085]  __alloc_pages_nodemask+0xa80/0xde0
[  299.433771]  ? zap_class+0x640/0x640
[  299.437493]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  299.442564]  ? find_held_lock+0x36/0x1c0
[  299.446650]  ? ____cache_alloc_node+0x1c7/0x1e0
[  299.451321]  ? lock_downgrade+0x900/0x900
[  299.455478]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.461025]  cache_grow_begin+0xa5/0x8c0
[  299.465086]  ? do_raw_spin_unlock+0xa7/0x330
[  299.469505]  fallback_alloc+0x204/0x2e0
[  299.473497]  ____cache_alloc_node+0x1c7/0x1e0
[  299.478002]  kmem_cache_alloc_node+0xe3/0x730
[  299.482502]  ? ipv6_get_ifaddr+0x42e/0x620
[  299.486748]  __alloc_skb+0x119/0x770
[  299.490479]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.495817]  ? netdev_alloc_frag+0x1f0/0x1f0
[  299.500231]  ? lock_downgrade+0x900/0x900
[  299.504387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.509925]  ? refcount_sub_and_test_checked+0x203/0x310
[  299.515380]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  299.520834]  ? addrconf_rs_timer+0x690/0x690
[  299.525272]  ndisc_alloc_skb+0x144/0x340
[  299.529343]  ndisc_send_rs+0x331/0x6e0
[  299.533240]  addrconf_rs_timer+0x314/0x690
[  299.537484]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.541763]  call_timer_fn+0x272/0x920
[  299.545674]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.549908]  ? process_timeout+0x40/0x40
[  299.553983]  ? __run_timers+0x7da/0xc70
[  299.557958]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.562455]  ? _raw_spin_unlock_irq+0x27/0x80
[  299.566949]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.571184]  ? lockdep_hardirqs_on+0x296/0x5b0
[  299.575780]  ? trace_hardirqs_on+0xbd/0x310
[  299.580105]  ? kasan_check_read+0x11/0x20
[  299.584255]  ? __run_timers+0x7da/0xc70
[  299.588234]  ? trace_hardirqs_off_caller+0x310/0x310
[  299.593343]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.597589]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  299.601824]  __run_timers+0x7e5/0xc70
[  299.605635]  ? timer_fixup_init+0x70/0x70
[  299.609806]  ? kasan_check_read+0x11/0x20
[  299.613958]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.619252]  ? rcu_softirq_qs+0x20/0x20
[  299.623301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.628846]  ? check_preemption_disabled+0x48/0x280
[  299.633870]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  299.638678]  ? retint_kernel+0x2d/0x2d
[  299.642578]  ? trace_hardirqs_on_caller+0xc0/0x310
[  299.647527]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  299.652306]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  299.657790]  ? zap_class+0x640/0x640
[  299.661516]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.667059]  ? check_preemption_disabled+0x48/0x280
[  299.672088]  ? __lock_is_held+0xb5/0x140
[  299.676155]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.681697]  ? check_preemption_disabled+0x48/0x280
[  299.686720]  run_timer_softirq+0x52/0xb0
[  299.690810]  ? rcu_read_lock_sched_held+0x14f/0x180
[  299.695830]  __do_softirq+0x308/0xb7e
[  299.699636]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  299.704130]  ? lock_downgrade+0x900/0x900
[  299.708325]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  299.713439]  ? pvclock_read_flags+0x160/0x160
[  299.717940]  ? lapic_next_event+0x5a/0x90
[  299.722093]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.727637]  ? kvm_clock_read+0x18/0x30
[  299.731610]  ? kvm_sched_clock_read+0x9/0x20
[  299.736026]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.741564]  ? check_preemption_disabled+0x48/0x280
[  299.746590]  irq_exit+0x17f/0x1c0
[  299.750047]  smp_apic_timer_interrupt+0x1cb/0x760
[  299.754893]  ? smp_reschedule_interrupt+0x109/0x650
[  299.759911]  ? smp_call_function_single_interrupt+0x650/0x650
[  299.765804]  ? interrupt_entry+0xb5/0xc0
[  299.769868]  ? trace_hardirqs_off_caller+0xbb/0x310
[  299.774886]  ? trace_hardirqs_off_caller+0xbb/0x310
[  299.779908]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  299.784753]  ? trace_hardirqs_on_caller+0x310/0x310
[  299.789797]  ? trace_hardirqs_on_caller+0x310/0x310
[  299.794813]  ? task_prio+0x50/0x50
[  299.798387]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  299.803931]  ? check_preemption_disabled+0x48/0x280
[  299.808956]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  299.814279]  apic_timer_interrupt+0xf/0x20
[  299.818507]  </IRQ>
[  299.820749] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  299.825694] 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
[  299.844594] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  299.852328] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  299.859610] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  299.866883] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  299.874149] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  299.881433] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  299.888738]  skb_clone+0x1bb/0x500
[  299.892296]  ? skb_split+0x11e0/0x11e0
[  299.896189]  ? preempt_notifier_register+0x200/0x200
[  299.901294]  ? __switch_to_asm+0x34/0x70
[  299.905356]  ? __switch_to_asm+0x34/0x70
[  299.909414]  ? __switch_to_asm+0x40/0x70
[  299.913497]  ? __switch_to_asm+0x34/0x70
[  299.917554]  ? __switch_to_asm+0x40/0x70
[  299.921613]  ? __switch_to_asm+0x40/0x70
[  299.925677]  ? __switch_to_asm+0x34/0x70
[  299.929764]  ? __switch_to_asm+0x34/0x70
[  299.933830]  ? __switch_to_asm+0x40/0x70
[  299.937892]  ? __switch_to_asm+0x34/0x70
[  299.941958]  bpf_clone_redirect+0xb9/0x490
[  299.946206]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  299.951230]  ? __sched_text_start+0x8/0x8
[  299.955384]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  299.960149]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  299.964915]  ? find_held_lock+0x36/0x1c0
[  299.968991]  ? lock_acquire+0x1ed/0x520
[  299.972965]  ? bpf_test_run+0x3cb/0x780
[  299.976940]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  299.982481]  ? check_preemption_disabled+0x48/0x280
[  299.987518]  ? kasan_check_read+0x11/0x20
[  299.991669]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  299.996951]  ? rcu_softirq_qs+0x20/0x20
[  300.000929]  ? preempt_schedule+0x4d/0x60
[  300.005080]  ? ___preempt_schedule+0x16/0x18
[  300.009510]  ? bpf_test_run+0x25d/0x780
[  300.013520]  ? netlink_diag_dump+0x2a0/0x2a0
[  300.017931]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.023465]  ? bpf_test_init.isra.10+0x70/0x100
[  300.028175]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  300.032971]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  300.037821]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  300.043359]  ? fput+0x130/0x1a0
[  300.046652]  ? __bpf_prog_get+0x9b/0x290
[  300.050721]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  300.055571]  ? bpf_prog_test_run+0x130/0x1a0
[  300.059983]  ? __x64_sys_bpf+0x3d8/0x520
[  300.064046]  ? bpf_prog_get+0x20/0x20
[  300.067870]  ? do_syscall_64+0x1b9/0x820
[  300.071932]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  300.077299]  ? syscall_return_slowpath+0x5e0/0x5e0
[  300.082234]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.087271]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  300.092307]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  300.098972]  ? __switch_to_asm+0x40/0x70
[  300.103030]  ? __switch_to_asm+0x34/0x70
[  300.107102]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.111955]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  300.117336] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  300.117408] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  300.124273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  300.124278] Call Trace:
[  300.124285]  <IRQ>
[  300.124303]  dump_stack+0x244/0x39d
[  300.124321]  ? dump_stack_print_info.cold.1+0x20/0x20
[  300.130881] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  300.140153]  warn_alloc.cold.116+0xb7/0x1bd
[  300.142711] syz-executor4 cpuset=syz4 mems_allowed=0
[  300.144858]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  300.178342]  ? lock_downgrade+0x900/0x900
[  300.182526]  ? trace_hardirqs_off+0xb8/0x310
[  300.186945]  ? trace_hardirqs_off+0xb8/0x310
[  300.191361]  __alloc_pages_slowpath+0x26e8/0x2e10
[  300.196246]  ? warn_alloc+0x120/0x120
[  300.200072]  ? print_usage_bug+0xc0/0xc0
[  300.204139]  ? warn_alloc+0x120/0x120
[  300.207946]  ? warn_alloc+0x120/0x120
[  300.211762]  ? print_usage_bug+0xc0/0xc0
[  300.215830]  ? kvm_clock_read+0x18/0x30
[  300.219824]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  300.224858]  ? print_usage_bug+0xc0/0xc0
[  300.228923]  ? __lock_acquire+0x62f/0x4c20
[  300.233164]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.238703]  ? should_fail+0x22d/0xd01
[  300.242593]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.247873]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  300.252983]  ? __lock_acquire+0x62f/0x4c20
[  300.257223]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  300.262330]  ? __lock_acquire+0x62f/0x4c20
[  300.266567]  ? should_fail+0x22d/0xd01
[  300.270453]  ? rcu_irq_exit+0x1a2/0x390
[  300.274442]  ? mark_held_locks+0x130/0x130
[  300.278683]  ? mark_held_locks+0x130/0x130
[  300.282925]  ? mark_held_locks+0xc7/0x130
[  300.287078]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  300.292094]  ? zap_class+0x640/0x640
[  300.295812]  ? print_usage_bug+0xc0/0xc0
[  300.299883]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.305423]  ? check_preemption_disabled+0x48/0x280
[  300.310450]  ? __lock_is_held+0xb5/0x140
[  300.314518]  __alloc_pages_nodemask+0xa80/0xde0
[  300.319186]  ? zap_class+0x640/0x640
[  300.322906]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  300.327938]  ? find_held_lock+0x36/0x1c0
[  300.332013]  ? ____cache_alloc_node+0x1c7/0x1e0
[  300.336688]  ? lock_downgrade+0x900/0x900
[  300.340844]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.346401]  cache_grow_begin+0xa5/0x8c0
[  300.350471]  ? do_raw_spin_unlock+0xa7/0x330
[  300.354888]  fallback_alloc+0x204/0x2e0
[  300.358876]  ____cache_alloc_node+0x1c7/0x1e0
[  300.363377]  kmem_cache_alloc_node+0xe3/0x730
[  300.367874]  ? ipv6_get_ifaddr+0x42e/0x620
[  300.372121]  __alloc_skb+0x119/0x770
[  300.375833]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.381134]  ? netdev_alloc_frag+0x1f0/0x1f0
[  300.385547]  ? lock_downgrade+0x900/0x900
[  300.389708]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.395250]  ? refcount_sub_and_test_checked+0x203/0x310
[  300.400711]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  300.406163]  ? addrconf_rs_timer+0x690/0x690
[  300.410584]  ndisc_alloc_skb+0x144/0x340
[  300.414653]  ndisc_send_rs+0x331/0x6e0
[  300.418548]  addrconf_rs_timer+0x314/0x690
[  300.422800]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.427052]  call_timer_fn+0x272/0x920
[  300.430938]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.435178]  ? process_timeout+0x40/0x40
[  300.439313]  ? mark_held_locks+0xc7/0x130
[  300.443460]  ? _raw_spin_unlock_irq+0x27/0x80
[  300.447961]  ? _raw_spin_unlock_irq+0x27/0x80
[  300.452458]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.456705]  ? lockdep_hardirqs_on+0x296/0x5b0
[  300.461294]  ? trace_hardirqs_on+0xbd/0x310
[  300.465621]  ? kasan_check_read+0x11/0x20
[  300.469779]  ? __run_timers+0x7da/0xc70
[  300.473753]  ? trace_hardirqs_off_caller+0x310/0x310
[  300.478917]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.483162]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  300.487415]  __run_timers+0x7e5/0xc70
[  300.491225]  ? timer_fixup_init+0x70/0x70
[  300.495379]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  300.500400]  ? zap_class+0x640/0x640
[  300.504119]  ? print_usage_bug+0xc0/0xc0
[  300.508200]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  300.513412]  ? find_held_lock+0x36/0x1c0
[  300.517477]  ? zap_class+0x640/0x640
[  300.521225]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.526789]  ? check_preemption_disabled+0x48/0x280
[  300.531819]  ? __lock_is_held+0xb5/0x140
[  300.535888]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.541458]  ? check_preemption_disabled+0x48/0x280
[  300.546489]  run_timer_softirq+0x52/0xb0
[  300.550556]  ? rcu_read_lock_sched_held+0x14f/0x180
[  300.555586]  __do_softirq+0x308/0xb7e
[  300.559389]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  300.563886]  ? lock_downgrade+0x900/0x900
[  300.568041]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  300.573159]  ? pvclock_read_flags+0x160/0x160
[  300.577669]  ? lapic_next_event+0x5a/0x90
[  300.581823]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.587366]  ? kvm_clock_read+0x18/0x30
[  300.591341]  ? kvm_sched_clock_read+0x9/0x20
[  300.595762]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.601306]  ? check_preemption_disabled+0x48/0x280
[  300.606334]  irq_exit+0x17f/0x1c0
[  300.609817]  smp_apic_timer_interrupt+0x1cb/0x760
[  300.614662]  ? smp_reschedule_interrupt+0x109/0x650
[  300.619698]  ? smp_call_function_single_interrupt+0x650/0x650
[  300.625596]  ? interrupt_entry+0xb5/0xc0
[  300.629659]  ? trace_hardirqs_off_caller+0xbb/0x310
[  300.634688]  ? trace_hardirqs_off_caller+0xbb/0x310
[  300.639720]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.644572]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.649591]  ? trace_hardirqs_on_caller+0x310/0x310
[  300.654618]  ? task_prio+0x50/0x50
[  300.658162]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.663705]  ? check_preemption_disabled+0x48/0x280
[  300.668730]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  300.673592]  apic_timer_interrupt+0xf/0x20
[  300.677821]  </IRQ>
[  300.680064] RIP: 0010:check_memory_region+0x121/0x1b0
[  300.685256] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  300.704161] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  300.711872] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  300.719144] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  300.726414] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  300.733680] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  300.740946] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  300.748231]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.753519]  kasan_check_read+0x11/0x20
[  300.757512]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  300.762618]  ? rcu_softirq_qs+0x20/0x20
[  300.766605]  rcu_is_watching+0x10/0x30
[  300.770507]  list_lru_count_one+0x362/0x450
[  300.774832]  ? list_lru_isolate_move+0x3c0/0x3c0
[  300.779589]  ? shmem_free_inode+0xd0/0xd0
[  300.783743]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  300.789307]  ? ubifs_shrink_count+0xc4/0x100
[  300.793724]  super_cache_count+0x153/0x2e0
[  300.797974]  do_shrink_slab+0x1b1/0xd30
[  300.801959]  ? lock_acquire+0x1ed/0x520
[  300.805960]  ? snapshot_refaults+0x290/0x290
[  300.810369]  ? lock_release+0xa00/0xa00
[  300.814351]  ? perf_trace_sched_process_exec+0x860/0x860
[  300.819817]  ? down_read_trylock+0xda/0x140
[  300.824138]  ? shrink_slab+0x207/0x8c0
[  300.828025]  ? downgrade_write+0x270/0x270
[  300.832275]  shrink_slab+0x389/0x8c0
[  300.835990]  ? shrink_active_list+0x1f00/0x1f00
[  300.840673]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  300.846304]  ? kasan_check_read+0x11/0x20
[  300.850455]  ? do_raw_spin_unlock+0xa7/0x330
[  300.854869]  ? ___preempt_schedule+0x16/0x18
[  300.859295]  ? _raw_spin_unlock+0x3f/0x50
[  300.863461]  shrink_node+0x431/0x16b0
[  300.867264]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  300.872576]  ? shrink_node_memcg+0x18f0/0x18f0
[  300.877163]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  300.881751]  ? trace_hardirqs_on+0xbd/0x310
[  300.886089]  ? vmpressure+0x271/0x340
[  300.889893]  ? do_raw_spin_trylock+0x270/0x270
[  300.894489]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  300.900029]  ? __cpuset_node_allowed+0x19b/0x660
[  300.904799]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  300.910512]  ? vmpressure+0x1a2/0x340
[  300.914335]  do_try_to_free_pages+0x3e7/0x1290
[  300.918921]  ? zap_class+0x640/0x640
[  300.922652]  ? shrink_node+0x16b0/0x16b0
[  300.926717]  ? __lock_is_held+0xb5/0x140
[  300.930798]  try_to_free_pages+0x4d0/0xb90
[  300.935046]  ? do_try_to_free_pages+0x1290/0x1290
[  300.939903]  ? lock_acquire+0x1ed/0x520
[  300.943887]  ? set_page_refcounted+0x280/0x280
[  300.948968]  ? lock_release+0xa00/0xa00
[  300.952945]  ? _raw_spin_unlock_irq+0x60/0x80
[  300.957446]  ? psi_memstall_enter+0x240/0x2b0
[  300.961945]  ? psi_memstall_tick+0x230/0x230
[  300.966365]  __alloc_pages_slowpath+0xa14/0x2e10
[  300.971155]  ? warn_alloc+0x120/0x120
[  300.974961]  ? mark_held_locks+0x130/0x130
[  300.979203]  ? find_get_entry+0xaae/0x1120
[  300.983461]  ? filemap_map_pages+0x1a20/0x1a20
[  300.988080]  ? zap_class+0x640/0x640
[  300.991802]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  300.997347]  ? check_preemption_disabled+0x48/0x280
[  301.002370]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.007914]  ? should_fail+0x22d/0xd01
[  301.011811]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  301.016918]  ? zap_class+0x640/0x640
[  301.020660]  ? __lock_is_held+0xb5/0x140
[  301.024731]  ? mark_held_locks+0x130/0x130
[  301.028979]  ? lock_release+0xa00/0xa00
[  301.032958]  ? perf_trace_sched_process_exec+0x860/0x860
[  301.038421]  ? xa_load+0x2ba/0x460
[  301.041964]  ? lock_downgrade+0x900/0x900
[  301.046123]  ? __might_sleep+0x95/0x190
[  301.050103]  __alloc_pages_nodemask+0xa80/0xde0
[  301.054815]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  301.059871]  ? __page_cache_alloc+0x191/0x5c0
[  301.064369]  ? xa_load+0x2e1/0x460
[  301.067910]  ? xa_clear_mark+0x40/0x40
[  301.071802]  ? zap_class+0x640/0x640
[  301.075527]  ? zap_class+0x640/0x640
[  301.079247]  ? zap_class+0x640/0x640
[  301.082968]  ? __do_page_cache_readahead+0x663/0x810
[  301.088078]  ? find_held_lock+0x36/0x1c0
[  301.092152]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  301.097704]  alloc_pages_current+0x173/0x350
[  301.102128]  __page_cache_alloc+0x38c/0x5c0
[  301.106452]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  301.111398]  ? kasan_check_read+0x11/0x20
[  301.115558]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.120855]  ? generic_perform_write+0x6a0/0x6a0
[  301.125617]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.131161]  ? check_preemption_disabled+0x48/0x280
[  301.136190]  filemap_fault+0x1595/0x25f0
[  301.140271]  ? __lock_page_or_retry+0xa00/0xa00
[  301.144948]  ? mark_held_locks+0x130/0x130
[  301.149200]  ? filemap_map_pages+0xd6b/0x1a20
[  301.153698]  ? lock_downgrade+0x900/0x900
[  301.157850]  ? check_preemption_disabled+0x48/0x280
[  301.162876]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  301.167807]  ? kasan_check_read+0x11/0x20
[  301.171960]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.177244]  ? rcu_softirq_qs+0x20/0x20
[  301.181252]  ? filemap_map_pages+0xd92/0x1a20
[  301.185816]  ? find_get_entries_tag+0x1400/0x1400
[  301.190686]  ? find_held_lock+0x36/0x1c0
[  301.194780]  ? lock_acquire+0x1ed/0x520
[  301.198767]  ? ext4_filemap_fault+0x7a/0xad
[  301.203098]  ? lock_release+0xa00/0xa00
[  301.207072]  ? perf_trace_sched_process_exec+0x860/0x860
[  301.212524]  ? print_usage_bug+0xc0/0xc0
[  301.216603]  ? down_read+0x8d/0x120
[  301.220231]  ? ext4_filemap_fault+0x7a/0xad
[  301.224559]  ? __down_interruptible+0x700/0x700
[  301.229235]  ? find_held_lock+0x36/0x1c0
[  301.233313]  ext4_filemap_fault+0x82/0xad
[  301.237470]  __do_fault+0x100/0x6b0
[  301.241109]  ? lock_downgrade+0x900/0x900
[  301.245283]  ? pmd_devmap_trans_unstable+0x220/0x220
[  301.250393]  ? kasan_check_read+0x11/0x20
[  301.254541]  ? do_raw_spin_unlock+0xa7/0x330
[  301.258952]  ? do_raw_spin_trylock+0x270/0x270
[  301.263570]  __handle_mm_fault+0x3ea0/0x5be0
[  301.267987]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  301.272846]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  301.277472]  ? zap_class+0x640/0x640
[  301.281190]  ? zap_class+0x640/0x640
[  301.284903]  ? __x64_sys_futex+0x53e/0x6a0
[  301.289145]  ? find_held_lock+0x36/0x1c0
[  301.293216]  ? handle_mm_fault+0x42a/0xc70
[  301.297473]  ? lock_downgrade+0x900/0x900
[  301.301627]  ? check_preemption_disabled+0x48/0x280
[  301.306655]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  301.311587]  ? kasan_check_read+0x11/0x20
[  301.315749]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.321035]  ? rcu_softirq_qs+0x20/0x20
[  301.325011]  ? trace_hardirqs_off_caller+0x310/0x310
[  301.330121]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.335659]  ? check_preemption_disabled+0x48/0x280
[  301.340687]  handle_mm_fault+0x54f/0xc70
[  301.344754]  ? __handle_mm_fault+0x5be0/0x5be0
[  301.349350]  ? find_vma+0x34/0x190
[  301.352913]  __do_page_fault+0x5e8/0xe60
[  301.356982]  ? trace_hardirqs_off+0xb8/0x310
[  301.361404]  do_page_fault+0xf2/0x7e0
[  301.365208]  ? vmalloc_sync_all+0x30/0x30
[  301.369360]  ? error_entry+0x70/0xd0
[  301.373075]  ? trace_hardirqs_off_caller+0xbb/0x310
[  301.378091]  ? trace_hardirqs_on_caller+0xc0/0x310
[  301.383045]  ? syscall_return_slowpath+0x5e0/0x5e0
[  301.387974]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.392819]  ? trace_hardirqs_on_caller+0x310/0x310
[  301.397841]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  301.403299]  ? prepare_exit_to_usermode+0x291/0x3b0
[  301.408319]  ? page_fault+0x8/0x30
[  301.411865]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  301.416709]  ? page_fault+0x8/0x30
[  301.420252]  page_fault+0x1e/0x30
[  301.423712] RIP: 0033:0x404068
[  301.426923] Code: Bad RIP value.
[  301.430296] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  301.435656] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  301.442930] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  301.450201] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  301.457473] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  301.464744] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  301.472046] warn_alloc_show_mem: 1 callbacks suppressed
[  301.472058] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  301.472060] Mem-Info:
[  301.472091] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  301.472091]  active_file:13 inactive_file:28 isolated_file:0
[  301.472091]  unevictable:0 dirty:1 writeback:0 unstable:0
[  301.472091]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  301.472091]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  301.472091]  free:13541 free_pcp:161 free_cma:0
[  301.477435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  301.484714] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  301.487111] Call Trace:
[  301.520152] 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
[  301.529503]  <IRQ>
[  301.557443] lowmem_reserve[]: 0 2818 6321 6321
[  301.560048]  dump_stack+0x244/0x39d
[  301.586126] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  301.588272]  ? dump_stack_print_info.cold.1+0x20/0x20
[  301.592837] lowmem_reserve[]: 0 0 3503 3503
[  301.596470]  warn_alloc.cold.116+0xb7/0x1bd
[  301.624020] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  301.629207]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  301.633517] lowmem_reserve[]: 0 0 0 0
[  301.637835]  ? lock_downgrade+0x900/0x900
[  301.666953] 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
[  301.671800]  ? trace_hardirqs_off+0xb8/0x310
[  301.675574] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  301.679716]  ? trace_hardirqs_off+0xb8/0x310
[  301.693212] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  301.697631]  __alloc_pages_slowpath+0x26e8/0x2e10
[  301.712803] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  301.717223]  ? warn_alloc+0x120/0x120
[  301.731660] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  301.736490]  ? print_usage_bug+0xc0/0xc0
[  301.745313] 4984 total pagecache pages
[  301.749107]  ? warn_alloc+0x120/0x120
[  301.757664] 0 pages in swap cache
[  301.761710]  ? warn_alloc+0x120/0x120
[  301.765598] Swap cache stats: add 0, delete 0, find 0/0
[  301.769425]  ? print_usage_bug+0xc0/0xc0
[  301.772857] Free swap  = 0kB
[  301.776656]  ? kvm_clock_read+0x18/0x30
[  301.781997] Total swap = 0kB
[  301.786054]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  301.789051] 1965979 pages RAM
[  301.793017]  ? print_usage_bug+0xc0/0xc0
[  301.796016] 0 pages HighMem/MovableOnly
[  301.801023]  ? __lock_acquire+0x62f/0x4c20
[  301.804110] 342853 pages reserved
[  301.808170]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  301.812119] 0 pages cma reserved
[  301.816861]  ? should_fail+0x22d/0xd01
[  301.820351] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  301.825818]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.825837]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  301.829275] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  301.833064]  ? __lock_acquire+0x62f/0x4c20
[  301.839534] syz-fuzzer cpuset=/ mems_allowed=0
[  301.844805]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  301.873976]  ? __lock_acquire+0x62f/0x4c20
[  301.878209]  ? should_fail+0x22d/0xd01
[  301.882094]  ? rcu_irq_exit+0x1a2/0x390
[  301.886081]  ? mark_held_locks+0x130/0x130
[  301.890329]  ? mark_held_locks+0x130/0x130
[  301.894573]  ? mark_held_locks+0xc7/0x130
[  301.898726]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  301.903753]  ? zap_class+0x640/0x640
[  301.907487]  ? print_usage_bug+0xc0/0xc0
[  301.911552]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.917095]  ? check_preemption_disabled+0x48/0x280
[  301.922121]  ? __lock_is_held+0xb5/0x140
[  301.926194]  __alloc_pages_nodemask+0xa80/0xde0
[  301.930866]  ? zap_class+0x640/0x640
[  301.934590]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  301.939622]  ? find_held_lock+0x36/0x1c0
[  301.943696]  ? ____cache_alloc_node+0x1c7/0x1e0
[  301.948368]  ? lock_downgrade+0x900/0x900
[  301.952530]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  301.958071]  cache_grow_begin+0xa5/0x8c0
[  301.962137]  ? do_raw_spin_unlock+0xa7/0x330
[  301.966555]  fallback_alloc+0x204/0x2e0
[  301.970543]  ____cache_alloc_node+0x1c7/0x1e0
[  301.975051]  kmem_cache_alloc_node+0xe3/0x730
[  301.979580]  ? ipv6_get_ifaddr+0x42e/0x620
[  301.983844]  __alloc_skb+0x119/0x770
[  301.987573]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  301.992854]  ? netdev_alloc_frag+0x1f0/0x1f0
[  301.997266]  ? lock_downgrade+0x900/0x900
[  302.001424]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.006962]  ? refcount_sub_and_test_checked+0x203/0x310
[  302.012422]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  302.017874]  ? addrconf_rs_timer+0x690/0x690
[  302.022309]  ndisc_alloc_skb+0x144/0x340
[  302.026379]  ndisc_send_rs+0x331/0x6e0
[  302.030277]  addrconf_rs_timer+0x314/0x690
[  302.034520]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.038778]  call_timer_fn+0x272/0x920
[  302.042670]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.046909]  ? process_timeout+0x40/0x40
[  302.050979]  ? __run_timers+0x7da/0xc70
[  302.054960]  ? _raw_spin_unlock_irq+0x27/0x80
[  302.059458]  ? _raw_spin_unlock_irq+0x27/0x80
[  302.063951]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.068191]  ? lockdep_hardirqs_on+0x296/0x5b0
[  302.072790]  ? trace_hardirqs_on+0xbd/0x310
[  302.077128]  ? kasan_check_read+0x11/0x20
[  302.081289]  ? __run_timers+0x7da/0xc70
[  302.085269]  ? trace_hardirqs_off_caller+0x310/0x310
[  302.090376]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.094616]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.098883]  __run_timers+0x7e5/0xc70
[  302.102696]  ? timer_fixup_init+0x70/0x70
[  302.106851]  ? kasan_check_read+0x11/0x20
[  302.111001]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.116278]  ? rcu_softirq_qs+0x20/0x20
[  302.120259]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.125812]  ? check_preemption_disabled+0x48/0x280
[  302.130839]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  302.135603]  ? retint_kernel+0x2d/0x2d
[  302.139495]  ? trace_hardirqs_on_caller+0xc0/0x310
[  302.144430]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  302.149193]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  302.154653]  ? zap_class+0x640/0x640
[  302.158380]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.163967]  ? check_preemption_disabled+0x48/0x280
[  302.169025]  ? __lock_is_held+0xb5/0x140
[  302.173089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.178641]  ? check_preemption_disabled+0x48/0x280
[  302.183679]  run_timer_softirq+0x52/0xb0
[  302.187742]  ? rcu_read_lock_sched_held+0x14f/0x180
[  302.192793]  __do_softirq+0x308/0xb7e
[  302.196599]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  302.201096]  ? lock_downgrade+0x900/0x900
[  302.205251]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  302.210364]  ? pvclock_read_flags+0x160/0x160
[  302.214865]  ? lapic_next_event+0x5a/0x90
[  302.219017]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.224559]  ? kvm_clock_read+0x18/0x30
[  302.228533]  ? kvm_sched_clock_read+0x9/0x20
[  302.232945]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.238490]  ? check_preemption_disabled+0x48/0x280
[  302.243517]  irq_exit+0x17f/0x1c0
[  302.246975]  smp_apic_timer_interrupt+0x1cb/0x760
[  302.251821]  ? smp_reschedule_interrupt+0x109/0x650
[  302.256842]  ? smp_call_function_single_interrupt+0x650/0x650
[  302.262731]  ? interrupt_entry+0xb5/0xc0
[  302.266815]  ? trace_hardirqs_off_caller+0xbb/0x310
[  302.271833]  ? trace_hardirqs_off_caller+0xbb/0x310
[  302.276852]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.281698]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.286806]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.291823]  ? task_prio+0x50/0x50
[  302.295365]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.300916]  ? check_preemption_disabled+0x48/0x280
[  302.305938]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.310800]  apic_timer_interrupt+0xf/0x20
[  302.315031]  </IRQ>
[  302.317274] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  302.322213] 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
[  302.341116] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  302.348825] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  302.356097] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  302.363367] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  302.370633] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  302.377903] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  302.385213]  skb_clone+0x1bb/0x500
[  302.388774]  ? skb_split+0x11e0/0x11e0
[  302.392687]  ? preempt_notifier_register+0x200/0x200
[  302.397794]  ? __switch_to_asm+0x34/0x70
[  302.401859]  ? __switch_to_asm+0x34/0x70
[  302.405918]  ? __switch_to_asm+0x40/0x70
[  302.409979]  ? __switch_to_asm+0x34/0x70
[  302.414041]  ? __switch_to_asm+0x40/0x70
[  302.418102]  ? __switch_to_asm+0x40/0x70
[  302.422161]  ? __switch_to_asm+0x34/0x70
[  302.426234]  ? __switch_to_asm+0x34/0x70
[  302.430290]  ? __switch_to_asm+0x40/0x70
[  302.434348]  ? __switch_to_asm+0x34/0x70
[  302.438414]  bpf_clone_redirect+0xb9/0x490
[  302.442658]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  302.447694]  ? __sched_text_start+0x8/0x8
[  302.451848]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  302.456612]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  302.461377]  ? find_held_lock+0x36/0x1c0
[  302.465448]  ? lock_acquire+0x1ed/0x520
[  302.469429]  ? bpf_test_run+0x3cb/0x780
[  302.473408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.478948]  ? check_preemption_disabled+0x48/0x280
[  302.483970]  ? kasan_check_read+0x11/0x20
[  302.488118]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.493395]  ? rcu_softirq_qs+0x20/0x20
[  302.497373]  ? preempt_schedule+0x4d/0x60
[  302.501522]  ? ___preempt_schedule+0x16/0x18
[  302.505941]  ? bpf_test_run+0x25d/0x780
[  302.509927]  ? netlink_diag_dump+0x2a0/0x2a0
[  302.514345]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.519885]  ? bpf_test_init.isra.10+0x70/0x100
[  302.524576]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  302.529343]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  302.534185]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  302.539725]  ? fput+0x130/0x1a0
[  302.543021]  ? __bpf_prog_get+0x9b/0x290
[  302.547086]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  302.551929]  ? bpf_prog_test_run+0x130/0x1a0
[  302.556347]  ? __x64_sys_bpf+0x3d8/0x520
[  302.560413]  ? bpf_prog_get+0x20/0x20
[  302.564237]  ? do_syscall_64+0x1b9/0x820
[  302.568311]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  302.573682]  ? syscall_return_slowpath+0x5e0/0x5e0
[  302.578619]  ? trace_hardirqs_on_caller+0x310/0x310
[  302.583668]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  302.588691]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  302.595357]  ? __switch_to_asm+0x40/0x70
[  302.599417]  ? __switch_to_asm+0x34/0x70
[  302.603515]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  302.608364]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  302.613797] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  302.613869] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  302.620726] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  302.620731] Call Trace:
[  302.620738]  <IRQ>
[  302.620754]  dump_stack+0x244/0x39d
[  302.620790]  ? dump_stack_print_info.cold.1+0x20/0x20
[  302.627322] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  302.636627]  warn_alloc.cold.116+0xb7/0x1bd
[  302.639185] syz-executor4 cpuset=syz4 mems_allowed=0
[  302.641332]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  302.674812]  ? lock_downgrade+0x900/0x900
[  302.678974]  ? trace_hardirqs_off+0xb8/0x310
[  302.683389]  ? trace_hardirqs_off+0xb8/0x310
[  302.687813]  __alloc_pages_slowpath+0x26e8/0x2e10
[  302.692689]  ? warn_alloc+0x120/0x120
[  302.696496]  ? print_usage_bug+0xc0/0xc0
[  302.700558]  ? warn_alloc+0x120/0x120
[  302.704369]  ? warn_alloc+0x120/0x120
[  302.708173]  ? print_usage_bug+0xc0/0xc0
[  302.712251]  ? print_usage_bug+0xc0/0xc0
[  302.716346]  ? __lock_acquire+0x62f/0x4c20
[  302.720586]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  302.726123]  ? should_fail+0x22d/0xd01
[  302.730018]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  302.735126]  ? __lock_acquire+0x62f/0x4c20
[  302.739382]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  302.744490]  ? __lock_acquire+0x62f/0x4c20
[  302.748723]  ? should_fail+0x22d/0xd01
[  302.752629]  ? mark_held_locks+0x130/0x130
[  302.756872]  ? mark_held_locks+0x130/0x130
[  302.761109]  ? zap_class+0x640/0x640
[  302.764832]  ? zap_class+0x640/0x640
[  302.768549]  ? print_usage_bug+0xc0/0xc0
[  302.772611]  ? wq_watchdog_touch+0x9c/0xfe
[  302.776856]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.782398]  ? check_preemption_disabled+0x48/0x280
[  302.787429]  ? __lock_is_held+0xb5/0x140
[  302.791516]  __alloc_pages_nodemask+0xa80/0xde0
[  302.796183]  ? zap_class+0x640/0x640
[  302.799908]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  302.804937]  ? find_held_lock+0x36/0x1c0
[  302.809011]  ? ____cache_alloc_node+0x1c7/0x1e0
[  302.813715]  ? lock_downgrade+0x900/0x900
[  302.817871]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.823420]  cache_grow_begin+0xa5/0x8c0
[  302.827487]  ? do_raw_spin_unlock+0xa7/0x330
[  302.831919]  fallback_alloc+0x204/0x2e0
[  302.835902]  ____cache_alloc_node+0x1c7/0x1e0
[  302.840406]  kmem_cache_alloc_node+0xe3/0x730
[  302.844927]  ? ipv6_get_ifaddr+0x42e/0x620
[  302.849177]  __alloc_skb+0x119/0x770
[  302.852895]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  302.858181]  ? netdev_alloc_frag+0x1f0/0x1f0
[  302.862596]  ? lock_downgrade+0x900/0x900
[  302.866754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  302.872305]  ? refcount_sub_and_test_checked+0x203/0x310
[  302.877768]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  302.883225]  ? addrconf_rs_timer+0x690/0x690
[  302.887645]  ndisc_alloc_skb+0x144/0x340
[  302.891713]  ndisc_send_rs+0x331/0x6e0
[  302.895609]  addrconf_rs_timer+0x314/0x690
[  302.899855]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.904105]  call_timer_fn+0x272/0x920
[  302.907997]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.912232]  ? process_timeout+0x40/0x40
[  302.916312]  ? mark_held_locks+0xc7/0x130
[  302.920463]  ? _raw_spin_unlock_irq+0x27/0x80
[  302.924958]  ? _raw_spin_unlock_irq+0x27/0x80
[  302.929475]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.933712]  ? lockdep_hardirqs_on+0x296/0x5b0
[  302.938335]  ? trace_hardirqs_on+0xbd/0x310
[  302.942680]  ? kasan_check_read+0x11/0x20
[  302.947330]  ? __run_timers+0x7da/0xc70
[  302.951308]  ? trace_hardirqs_off_caller+0x310/0x310
[  302.956441]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  302.960692]  __run_timers+0x7e5/0xc70
[  302.964518]  ? timer_fixup_init+0x70/0x70
[  302.968667]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  302.973687]  ? zap_class+0x640/0x640
[  302.977424]  ? print_usage_bug+0xc0/0xc0
[  302.981489]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  302.986687]  ? find_held_lock+0x36/0x1c0
[  302.990754]  ? zap_class+0x640/0x640
[  302.994484]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.000026]  ? check_preemption_disabled+0x48/0x280
[  303.005056]  ? __lock_is_held+0xb5/0x140
[  303.009122]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.014662]  ? check_preemption_disabled+0x48/0x280
[  303.019688]  run_timer_softirq+0x52/0xb0
[  303.023775]  ? rcu_read_lock_sched_held+0x14f/0x180
[  303.028794]  __do_softirq+0x308/0xb7e
[  303.032601]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  303.037112]  ? lock_downgrade+0x900/0x900
[  303.041264]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  303.046380]  ? pvclock_read_flags+0x160/0x160
[  303.050880]  ? lapic_next_event+0x5a/0x90
[  303.055037]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.060579]  ? kvm_clock_read+0x18/0x30
[  303.064555]  ? kvm_sched_clock_read+0x9/0x20
[  303.068973]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.074515]  ? check_preemption_disabled+0x48/0x280
[  303.079551]  irq_exit+0x17f/0x1c0
[  303.083006]  smp_apic_timer_interrupt+0x1cb/0x760
[  303.087849]  ? smp_reschedule_interrupt+0x109/0x650
[  303.092867]  ? smp_call_function_single_interrupt+0x650/0x650
[  303.098755]  ? interrupt_entry+0xb5/0xc0
[  303.102828]  ? trace_hardirqs_off_caller+0xbb/0x310
[  303.107843]  ? trace_hardirqs_off_caller+0xbb/0x310
[  303.112863]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.117707]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.122725]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.127749]  ? task_prio+0x50/0x50
[  303.131307]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.136847]  ? check_preemption_disabled+0x48/0x280
[  303.141874]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.146725]  apic_timer_interrupt+0xf/0x20
[  303.150961]  </IRQ>
[  303.153204] RIP: 0010:check_memory_region+0x121/0x1b0
[  303.158401] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  303.177300] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  303.185009] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  303.192280] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  303.199562] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  303.206832] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  303.214098] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  303.221386]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.226677]  kasan_check_read+0x11/0x20
[  303.230652]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.235767]  ? rcu_softirq_qs+0x20/0x20
[  303.239753]  rcu_is_watching+0x10/0x30
[  303.243656]  list_lru_count_one+0x362/0x450
[  303.247983]  ? list_lru_isolate_move+0x3c0/0x3c0
[  303.252739]  ? shmem_free_inode+0xd0/0xd0
[  303.256899]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.262436]  ? ubifs_shrink_count+0xc4/0x100
[  303.266854]  super_cache_count+0x153/0x2e0
[  303.271094]  do_shrink_slab+0x1b1/0xd30
[  303.275075]  ? lock_acquire+0x1ed/0x520
[  303.279055]  ? snapshot_refaults+0x290/0x290
[  303.283466]  ? lock_release+0xa00/0xa00
[  303.287453]  ? perf_trace_sched_process_exec+0x860/0x860
[  303.292916]  ? down_read_trylock+0xda/0x140
[  303.297234]  ? shrink_slab+0x207/0x8c0
[  303.301125]  ? downgrade_write+0x270/0x270
[  303.305372]  shrink_slab+0x389/0x8c0
[  303.309089]  ? shrink_active_list+0x1f00/0x1f00
[  303.313776]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  303.319417]  ? kasan_check_read+0x11/0x20
[  303.323570]  ? do_raw_spin_unlock+0xa7/0x330
[  303.327986]  ? ___preempt_schedule+0x16/0x18
[  303.332405]  ? _raw_spin_unlock+0x3f/0x50
[  303.336560]  shrink_node+0x431/0x16b0
[  303.340367]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  303.345685]  ? shrink_node_memcg+0x18f0/0x18f0
[  303.350266]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  303.354858]  ? trace_hardirqs_on+0xbd/0x310
[  303.359180]  ? vmpressure+0x271/0x340
[  303.362986]  ? do_raw_spin_trylock+0x270/0x270
[  303.367591]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  303.373131]  ? __cpuset_node_allowed+0x19b/0x660
[  303.377889]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  303.383613]  ? vmpressure+0x1a2/0x340
[  303.387428]  do_try_to_free_pages+0x3e7/0x1290
[  303.392046]  ? zap_class+0x640/0x640
[  303.395787]  ? shrink_node+0x16b0/0x16b0
[  303.399861]  ? __lock_is_held+0xb5/0x140
[  303.403942]  try_to_free_pages+0x4d0/0xb90
[  303.408184]  ? do_try_to_free_pages+0x1290/0x1290
[  303.413041]  ? lock_acquire+0x1ed/0x520
[  303.417018]  ? set_page_refcounted+0x280/0x280
[  303.421608]  ? lock_release+0xa00/0xa00
[  303.425585]  ? _raw_spin_unlock_irq+0x60/0x80
[  303.430083]  ? psi_memstall_enter+0x240/0x2b0
[  303.434579]  ? psi_memstall_tick+0x230/0x230
[  303.439001]  __alloc_pages_slowpath+0xa14/0x2e10
[  303.443798]  ? warn_alloc+0x120/0x120
[  303.447602]  ? mark_held_locks+0x130/0x130
[  303.451845]  ? find_get_entry+0xaae/0x1120
[  303.456092]  ? filemap_map_pages+0x1a20/0x1a20
[  303.460684]  ? zap_class+0x640/0x640
[  303.464408]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  303.469951]  ? check_preemption_disabled+0x48/0x280
[  303.474969]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.480544]  ? should_fail+0x22d/0xd01
[  303.484436]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  303.489542]  ? zap_class+0x640/0x640
[  303.493295]  ? __lock_is_held+0xb5/0x140
[  303.497366]  ? mark_held_locks+0x130/0x130
[  303.501605]  ? lock_release+0xa00/0xa00
[  303.505582]  ? perf_trace_sched_process_exec+0x860/0x860
[  303.511050]  ? xa_load+0x2ba/0x460
[  303.514592]  ? lock_downgrade+0x900/0x900
[  303.518748]  ? __might_sleep+0x95/0x190
[  303.522742]  __alloc_pages_nodemask+0xa80/0xde0
[  303.527431]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  303.532452]  ? __page_cache_alloc+0x191/0x5c0
[  303.536952]  ? xa_load+0x2e1/0x460
[  303.540500]  ? xa_clear_mark+0x40/0x40
[  303.544395]  ? zap_class+0x640/0x640
[  303.548120]  ? zap_class+0x640/0x640
[  303.551836]  ? zap_class+0x640/0x640
[  303.555554]  ? __do_page_cache_readahead+0x663/0x810
[  303.560661]  ? find_held_lock+0x36/0x1c0
[  303.564731]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  303.570289]  alloc_pages_current+0x173/0x350
[  303.574707]  __page_cache_alloc+0x38c/0x5c0
[  303.579027]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  303.583962]  ? kasan_check_read+0x11/0x20
[  303.588120]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.593403]  ? generic_perform_write+0x6a0/0x6a0
[  303.598165]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.603710]  ? check_preemption_disabled+0x48/0x280
[  303.608739]  filemap_fault+0x1595/0x25f0
[  303.612822]  ? __lock_page_or_retry+0xa00/0xa00
[  303.617497]  ? mark_held_locks+0x130/0x130
[  303.621764]  ? filemap_map_pages+0xd6b/0x1a20
[  303.626272]  ? lock_downgrade+0x900/0x900
[  303.630427]  ? check_preemption_disabled+0x48/0x280
[  303.635452]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  303.640384]  ? kasan_check_read+0x11/0x20
[  303.644530]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.649810]  ? rcu_softirq_qs+0x20/0x20
[  303.653806]  ? filemap_map_pages+0xd92/0x1a20
[  303.658316]  ? find_get_entries_tag+0x1400/0x1400
[  303.663162]  ? find_held_lock+0x36/0x1c0
[  303.667243]  ? lock_acquire+0x1ed/0x520
[  303.671222]  ? ext4_filemap_fault+0x7a/0xad
[  303.675550]  ? lock_release+0xa00/0xa00
[  303.679524]  ? perf_trace_sched_process_exec+0x860/0x860
[  303.684976]  ? print_usage_bug+0xc0/0xc0
[  303.689053]  ? down_read+0x8d/0x120
[  303.692678]  ? ext4_filemap_fault+0x7a/0xad
[  303.697001]  ? __down_interruptible+0x700/0x700
[  303.701673]  ? find_held_lock+0x36/0x1c0
[  303.705738]  ext4_filemap_fault+0x82/0xad
[  303.709901]  __do_fault+0x100/0x6b0
[  303.713530]  ? lock_downgrade+0x900/0x900
[  303.717681]  ? pmd_devmap_trans_unstable+0x220/0x220
[  303.722798]  ? kasan_check_read+0x11/0x20
[  303.726951]  ? do_raw_spin_unlock+0xa7/0x330
[  303.731362]  ? do_raw_spin_trylock+0x270/0x270
[  303.735984]  __handle_mm_fault+0x3ea0/0x5be0
[  303.740403]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  303.745257]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  303.749856]  ? zap_class+0x640/0x640
[  303.753577]  ? zap_class+0x640/0x640
[  303.757299]  ? __x64_sys_futex+0x53e/0x6a0
[  303.761542]  ? find_held_lock+0x36/0x1c0
[  303.765615]  ? handle_mm_fault+0x42a/0xc70
[  303.769881]  ? lock_downgrade+0x900/0x900
[  303.774029]  ? check_preemption_disabled+0x48/0x280
[  303.779056]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  303.783986]  ? kasan_check_read+0x11/0x20
[  303.788137]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  303.793447]  ? rcu_softirq_qs+0x20/0x20
[  303.797441]  ? trace_hardirqs_off_caller+0x310/0x310
[  303.802546]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  303.808098]  ? check_preemption_disabled+0x48/0x280
[  303.813135]  handle_mm_fault+0x54f/0xc70
[  303.817454]  ? __handle_mm_fault+0x5be0/0x5be0
[  303.822048]  ? find_vma+0x34/0x190
[  303.825600]  __do_page_fault+0x5e8/0xe60
[  303.829662]  ? trace_hardirqs_off+0xb8/0x310
[  303.834084]  do_page_fault+0xf2/0x7e0
[  303.837890]  ? vmalloc_sync_all+0x30/0x30
[  303.842041]  ? error_entry+0x70/0xd0
[  303.845770]  ? trace_hardirqs_off_caller+0xbb/0x310
[  303.850796]  ? trace_hardirqs_on_caller+0xc0/0x310
[  303.855726]  ? syscall_return_slowpath+0x5e0/0x5e0
[  303.860690]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.865538]  ? trace_hardirqs_on_caller+0x310/0x310
[  303.870565]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  303.876022]  ? prepare_exit_to_usermode+0x291/0x3b0
[  303.881037]  ? page_fault+0x8/0x30
[  303.884582]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  303.889434]  ? page_fault+0x8/0x30
[  303.892980]  page_fault+0x1e/0x30
[  303.896431] RIP: 0033:0x404068
[  303.899636] Code: Bad RIP value.
[  303.903001] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  303.908363] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  303.915628] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  303.922895] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  303.930163] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  303.937432] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  303.944720] warn_alloc_show_mem: 1 callbacks suppressed
[  303.944732] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  303.944734] Mem-Info:
[  303.944774] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  303.944774]  active_file:13 inactive_file:28 isolated_file:0
[  303.944774]  unevictable:0 dirty:1 writeback:0 unstable:0
[  303.944774]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  303.944774]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  303.944774]  free:13541 free_pcp:161 free_cma:0
[  303.950121] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  303.957392] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  303.959809] Call Trace:
[  303.992849] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  304.002193]  <IRQ>
[  304.030124] lowmem_reserve[]: 0 2818 6321 6321
[  304.032711]  dump_stack+0x244/0x39d
[  304.058794] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  304.060957]  ? dump_stack_print_info.cold.1+0x20/0x20
[  304.065526] lowmem_reserve[]: 0 0 3503 3503
[  304.069185]  warn_alloc.cold.116+0xb7/0x1bd
[  304.096736] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  304.101932]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  304.106225] lowmem_reserve[]: 0 0 0 0
[  304.110553]  ? lock_downgrade+0x900/0x900
[  304.139675] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  304.144519]  ? trace_hardirqs_off+0xb8/0x310
[  304.148291] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  304.152436]  ? trace_hardirqs_off+0xb8/0x310
[  304.165932] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  304.170341]  __alloc_pages_slowpath+0x26e8/0x2e10
[  304.185491] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  304.189913]  ? warn_alloc+0x120/0x120
[  304.204352] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  304.209182]  ? print_usage_bug+0xc0/0xc0
[  304.217993] 4984 total pagecache pages
[  304.221794]  ? warn_alloc+0x120/0x120
[  304.230352] 0 pages in swap cache
[  304.234398]  ? warn_alloc+0x120/0x120
[  304.238273] Swap cache stats: add 0, delete 0, find 0/0
[  304.242058]  ? print_usage_bug+0xc0/0xc0
[  304.245503] Free swap  = 0kB
[  304.249338]  ? print_usage_bug+0xc0/0xc0
[  304.254695] Total swap = 0kB
[  304.258753]  ? __lock_acquire+0x62f/0x4c20
[  304.261766] 1965979 pages RAM
[  304.265829]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.268822] 0 pages HighMem/MovableOnly
[  304.273053]  ? should_fail+0x22d/0xd01
[  304.276135] 342853 pages reserved
[  304.281666]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  304.285619] 0 pages cma reserved
[  304.289497]  ? __lock_acquire+0x62f/0x4c20
[  304.292986] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  304.298027]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  304.301495] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  304.305621]  ? __lock_acquire+0x62f/0x4c20
[  304.312089] syz-fuzzer cpuset=/ mems_allowed=0
[  304.317188]  ? should_fail+0x22d/0xd01
[  304.340047]  ? find_held_lock+0x36/0x1c0
[  304.344119]  ? mark_held_locks+0x130/0x130
[  304.348359]  ? mark_held_locks+0x130/0x130
[  304.352595]  ? zap_class+0x640/0x640
[  304.356311]  ? zap_class+0x640/0x640
[  304.360028]  ? print_usage_bug+0xc0/0xc0
[  304.364098]  ? do_raw_spin_unlock+0xa7/0x330
[  304.368509]  ? zap_class+0x640/0x640
[  304.372224]  ? print_usage_bug+0xc0/0xc0
[  304.376287]  ? wq_watchdog_touch+0x9c/0xfe
[  304.380526]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.386071]  ? check_preemption_disabled+0x48/0x280
[  304.391099]  ? __lock_is_held+0xb5/0x140
[  304.395173]  __alloc_pages_nodemask+0xa80/0xde0
[  304.399848]  ? zap_class+0x640/0x640
[  304.403567]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  304.408599]  ? find_held_lock+0x36/0x1c0
[  304.412703]  ? ____cache_alloc_node+0x1c7/0x1e0
[  304.417393]  ? lock_downgrade+0x900/0x900
[  304.421562]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.427120]  cache_grow_begin+0xa5/0x8c0
[  304.431184]  ? do_raw_spin_unlock+0xa7/0x330
[  304.435600]  fallback_alloc+0x204/0x2e0
[  304.439584]  ____cache_alloc_node+0x1c7/0x1e0
[  304.444092]  kmem_cache_alloc_node+0xe3/0x730
[  304.448597]  ? ipv6_get_ifaddr+0x42e/0x620
[  304.452849]  __alloc_skb+0x119/0x770
[  304.456569]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.461852]  ? netdev_alloc_frag+0x1f0/0x1f0
[  304.466264]  ? lock_downgrade+0x900/0x900
[  304.470425]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.475980]  ? refcount_sub_and_test_checked+0x203/0x310
[  304.481435]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  304.486893]  ? addrconf_rs_timer+0x690/0x690
[  304.491344]  ndisc_alloc_skb+0x144/0x340
[  304.495417]  ndisc_send_rs+0x331/0x6e0
[  304.499324]  addrconf_rs_timer+0x314/0x690
[  304.503580]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.507829]  call_timer_fn+0x272/0x920
[  304.511737]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.515984]  ? process_timeout+0x40/0x40
[  304.520068]  ? __run_timers+0x7da/0xc70
[  304.524045]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.528573]  ? _raw_spin_unlock_irq+0x27/0x80
[  304.533066]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.537302]  ? lockdep_hardirqs_on+0x296/0x5b0
[  304.541889]  ? trace_hardirqs_on+0xbd/0x310
[  304.546229]  ? kasan_check_read+0x11/0x20
[  304.550375]  ? __run_timers+0x7da/0xc70
[  304.554352]  ? trace_hardirqs_off_caller+0x310/0x310
[  304.559472]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.563729]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  304.567973]  __run_timers+0x7e5/0xc70
[  304.571797]  ? timer_fixup_init+0x70/0x70
[  304.575955]  ? kasan_check_read+0x11/0x20
[  304.580105]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.585414]  ? rcu_softirq_qs+0x20/0x20
[  304.589402]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.594938]  ? check_preemption_disabled+0x48/0x280
[  304.599959]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  304.604733]  ? retint_kernel+0x2d/0x2d
[  304.608633]  ? trace_hardirqs_on_caller+0xc0/0x310
[  304.613567]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  304.618327]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  304.623791]  ? zap_class+0x640/0x640
[  304.627514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.633052]  ? check_preemption_disabled+0x48/0x280
[  304.638077]  ? __lock_is_held+0xb5/0x140
[  304.642144]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.647683]  ? check_preemption_disabled+0x48/0x280
[  304.652709]  run_timer_softirq+0x52/0xb0
[  304.656787]  ? rcu_read_lock_sched_held+0x14f/0x180
[  304.661809]  __do_softirq+0x308/0xb7e
[  304.665618]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  304.670114]  ? lock_downgrade+0x900/0x900
[  304.674269]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  304.679379]  ? pvclock_read_flags+0x160/0x160
[  304.683879]  ? lapic_next_event+0x5a/0x90
[  304.688030]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.693584]  ? kvm_clock_read+0x18/0x30
[  304.697585]  ? kvm_sched_clock_read+0x9/0x20
[  304.701997]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.707536]  ? check_preemption_disabled+0x48/0x280
[  304.712562]  irq_exit+0x17f/0x1c0
[  304.716018]  smp_apic_timer_interrupt+0x1cb/0x760
[  304.720865]  ? smp_reschedule_interrupt+0x109/0x650
[  304.725883]  ? smp_call_function_single_interrupt+0x650/0x650
[  304.731782]  ? interrupt_entry+0xb5/0xc0
[  304.735846]  ? trace_hardirqs_off_caller+0xbb/0x310
[  304.740866]  ? trace_hardirqs_off_caller+0xbb/0x310
[  304.745885]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  304.750728]  ? trace_hardirqs_on_caller+0x310/0x310
[  304.755794]  ? trace_hardirqs_on_caller+0x310/0x310
[  304.760814]  ? task_prio+0x50/0x50
[  304.764357]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.769895]  ? check_preemption_disabled+0x48/0x280
[  304.774918]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  304.779782]  apic_timer_interrupt+0xf/0x20
[  304.784029]  </IRQ>
[  304.786270] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  304.791201] 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
[  304.810099] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  304.817810] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  304.825077] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  304.832346] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  304.839609] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  304.846893] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  304.854198]  skb_clone+0x1bb/0x500
[  304.857765]  ? skb_split+0x11e0/0x11e0
[  304.861667]  ? preempt_notifier_register+0x200/0x200
[  304.866779]  ? __switch_to_asm+0x34/0x70
[  304.870840]  ? __switch_to_asm+0x34/0x70
[  304.874901]  ? __switch_to_asm+0x40/0x70
[  304.878960]  ? __switch_to_asm+0x34/0x70
[  304.883034]  ? __switch_to_asm+0x40/0x70
[  304.887108]  ? __switch_to_asm+0x40/0x70
[  304.891170]  ? __switch_to_asm+0x34/0x70
[  304.895230]  ? __switch_to_asm+0x34/0x70
[  304.899304]  ? __switch_to_asm+0x40/0x70
[  304.903378]  ? __switch_to_asm+0x34/0x70
[  304.907443]  bpf_clone_redirect+0xb9/0x490
[  304.911688]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  304.916707]  ? __sched_text_start+0x8/0x8
[  304.920860]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  304.925637]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  304.930397]  ? find_held_lock+0x36/0x1c0
[  304.934470]  ? lock_acquire+0x1ed/0x520
[  304.938442]  ? bpf_test_run+0x3cb/0x780
[  304.942448]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  304.948105]  ? check_preemption_disabled+0x48/0x280
[  304.953133]  ? kasan_check_read+0x11/0x20
[  304.957292]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  304.962574]  ? rcu_softirq_qs+0x20/0x20
[  304.966556]  ? preempt_schedule+0x4d/0x60
[  304.970707]  ? ___preempt_schedule+0x16/0x18
[  304.975138]  ? bpf_test_run+0x25d/0x780
[  304.979124]  ? netlink_diag_dump+0x2a0/0x2a0
[  304.983542]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  304.989081]  ? bpf_test_init.isra.10+0x70/0x100
[  304.993766]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  304.998545]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  305.003389]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  305.008926]  ? fput+0x130/0x1a0
[  305.012214]  ? __bpf_prog_get+0x9b/0x290
[  305.016279]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  305.021121]  ? bpf_prog_test_run+0x130/0x1a0
[  305.025539]  ? __x64_sys_bpf+0x3d8/0x520
[  305.029602]  ? bpf_prog_get+0x20/0x20
[  305.033424]  ? do_syscall_64+0x1b9/0x820
[  305.037489]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  305.042861]  ? syscall_return_slowpath+0x5e0/0x5e0
[  305.047834]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.052851]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  305.057871]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  305.064536]  ? __switch_to_asm+0x40/0x70
[  305.068599]  ? __switch_to_asm+0x34/0x70
[  305.072671]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.077526]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  305.082910] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  305.082999] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  305.089844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  305.089850] Call Trace:
[  305.089857]  <IRQ>
[  305.089875]  dump_stack+0x244/0x39d
[  305.089893]  ? dump_stack_print_info.cold.1+0x20/0x20
[  305.096430] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  305.105727]  warn_alloc.cold.116+0xb7/0x1bd
[  305.108285] syz-executor4 cpuset=syz4 mems_allowed=0
[  305.110429]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  305.143928]  ? lock_downgrade+0x900/0x900
[  305.148091]  ? trace_hardirqs_off+0xb8/0x310
[  305.152509]  ? trace_hardirqs_off+0xb8/0x310
[  305.156928]  __alloc_pages_slowpath+0x26e8/0x2e10
[  305.161812]  ? warn_alloc+0x120/0x120
[  305.165636]  ? print_usage_bug+0xc0/0xc0
[  305.169704]  ? warn_alloc+0x120/0x120
[  305.173509]  ? warn_alloc+0x120/0x120
[  305.177317]  ? print_usage_bug+0xc0/0xc0
[  305.181384]  ? kvm_clock_read+0x18/0x30
[  305.185359]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  305.190381]  ? print_usage_bug+0xc0/0xc0
[  305.194472]  ? __lock_acquire+0x62f/0x4c20
[  305.198716]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.204255]  ? should_fail+0x22d/0xd01
[  305.208154]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.213440]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.218545]  ? __lock_acquire+0x62f/0x4c20
[  305.222793]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.227903]  ? __lock_acquire+0x62f/0x4c20
[  305.232142]  ? should_fail+0x22d/0xd01
[  305.236031]  ? rcu_irq_exit+0x1a2/0x390
[  305.240014]  ? mark_held_locks+0x130/0x130
[  305.244258]  ? mark_held_locks+0x130/0x130
[  305.248524]  ? mark_held_locks+0xc7/0x130
[  305.252678]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  305.257696]  ? zap_class+0x640/0x640
[  305.261418]  ? print_usage_bug+0xc0/0xc0
[  305.265487]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.271029]  ? check_preemption_disabled+0x48/0x280
[  305.276061]  ? __lock_is_held+0xb5/0x140
[  305.280147]  __alloc_pages_nodemask+0xa80/0xde0
[  305.284819]  ? zap_class+0x640/0x640
[  305.288544]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  305.293572]  ? find_held_lock+0x36/0x1c0
[  305.297645]  ? ____cache_alloc_node+0x1c7/0x1e0
[  305.302316]  ? lock_downgrade+0x900/0x900
[  305.306472]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.312020]  cache_grow_begin+0xa5/0x8c0
[  305.316085]  ? do_raw_spin_unlock+0xa7/0x330
[  305.320509]  fallback_alloc+0x204/0x2e0
[  305.324491]  ____cache_alloc_node+0x1c7/0x1e0
[  305.328992]  kmem_cache_alloc_node+0xe3/0x730
[  305.333490]  ? ipv6_get_ifaddr+0x42e/0x620
[  305.337741]  __alloc_skb+0x119/0x770
[  305.341464]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.346746]  ? netdev_alloc_frag+0x1f0/0x1f0
[  305.351167]  ? lock_downgrade+0x900/0x900
[  305.355325]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.360865]  ? refcount_sub_and_test_checked+0x203/0x310
[  305.366321]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  305.371783]  ? addrconf_rs_timer+0x690/0x690
[  305.376209]  ndisc_alloc_skb+0x144/0x340
[  305.380284]  ndisc_send_rs+0x331/0x6e0
[  305.384191]  addrconf_rs_timer+0x314/0x690
[  305.388459]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.392710]  call_timer_fn+0x272/0x920
[  305.396600]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.400843]  ? process_timeout+0x40/0x40
[  305.404921]  ? mark_held_locks+0xc7/0x130
[  305.409071]  ? _raw_spin_unlock_irq+0x27/0x80
[  305.413564]  ? _raw_spin_unlock_irq+0x27/0x80
[  305.418057]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.422300]  ? lockdep_hardirqs_on+0x296/0x5b0
[  305.426890]  ? trace_hardirqs_on+0xbd/0x310
[  305.431215]  ? kasan_check_read+0x11/0x20
[  305.435362]  ? __run_timers+0x7da/0xc70
[  305.439343]  ? trace_hardirqs_off_caller+0x310/0x310
[  305.444454]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.448699]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  305.452933]  __run_timers+0x7e5/0xc70
[  305.456746]  ? timer_fixup_init+0x70/0x70
[  305.460914]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  305.465947]  ? zap_class+0x640/0x640
[  305.469667]  ? print_usage_bug+0xc0/0xc0
[  305.473734]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  305.478941]  ? find_held_lock+0x36/0x1c0
[  305.483010]  ? zap_class+0x640/0x640
[  305.486734]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.492286]  ? check_preemption_disabled+0x48/0x280
[  305.497315]  ? __lock_is_held+0xb5/0x140
[  305.501382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.506928]  ? check_preemption_disabled+0x48/0x280
[  305.511951]  run_timer_softirq+0x52/0xb0
[  305.516017]  ? rcu_read_lock_sched_held+0x14f/0x180
[  305.521043]  __do_softirq+0x308/0xb7e
[  305.524850]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  305.529348]  ? lock_downgrade+0x900/0x900
[  305.533501]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  305.538617]  ? pvclock_read_flags+0x160/0x160
[  305.543117]  ? lapic_next_event+0x5a/0x90
[  305.547284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.552833]  ? kvm_clock_read+0x18/0x30
[  305.556809]  ? kvm_sched_clock_read+0x9/0x20
[  305.561222]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.566771]  ? check_preemption_disabled+0x48/0x280
[  305.571803]  irq_exit+0x17f/0x1c0
[  305.575263]  smp_apic_timer_interrupt+0x1cb/0x760
[  305.580114]  ? smp_reschedule_interrupt+0x109/0x650
[  305.585136]  ? smp_call_function_single_interrupt+0x650/0x650
[  305.591020]  ? interrupt_entry+0xb5/0xc0
[  305.595086]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.600107]  ? trace_hardirqs_off_caller+0xbb/0x310
[  305.605127]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.609975]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.614992]  ? trace_hardirqs_on_caller+0x310/0x310
[  305.620008]  ? task_prio+0x50/0x50
[  305.623557]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.629097]  ? check_preemption_disabled+0x48/0x280
[  305.634122]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  305.638977]  apic_timer_interrupt+0xf/0x20
[  305.643208]  </IRQ>
[  305.645452] RIP: 0010:check_memory_region+0x121/0x1b0
[  305.650644] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  305.669546] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  305.677257] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  305.684527] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  305.691797] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  305.699063] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  305.706332] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  305.713623]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.718916]  kasan_check_read+0x11/0x20
[  305.722894]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  305.727998]  ? rcu_softirq_qs+0x20/0x20
[  305.731992]  rcu_is_watching+0x10/0x30
[  305.735886]  list_lru_count_one+0x362/0x450
[  305.740226]  ? list_lru_isolate_move+0x3c0/0x3c0
[  305.744983]  ? shmem_free_inode+0xd0/0xd0
[  305.749148]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.754688]  ? ubifs_shrink_count+0xc4/0x100
[  305.759108]  super_cache_count+0x153/0x2e0
[  305.763355]  do_shrink_slab+0x1b1/0xd30
[  305.767338]  ? lock_acquire+0x1ed/0x520
[  305.771322]  ? snapshot_refaults+0x290/0x290
[  305.775733]  ? lock_release+0xa00/0xa00
[  305.779722]  ? perf_trace_sched_process_exec+0x860/0x860
[  305.785189]  ? down_read_trylock+0xda/0x140
[  305.789509]  ? shrink_slab+0x207/0x8c0
[  305.793397]  ? downgrade_write+0x270/0x270
[  305.797643]  shrink_slab+0x389/0x8c0
[  305.801364]  ? shrink_active_list+0x1f00/0x1f00
[  305.806042]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  305.811673]  ? kasan_check_read+0x11/0x20
[  305.816084]  ? do_raw_spin_unlock+0xa7/0x330
[  305.820504]  ? ___preempt_schedule+0x16/0x18
[  305.824925]  ? _raw_spin_unlock+0x3f/0x50
[  305.829082]  shrink_node+0x431/0x16b0
[  305.832883]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  305.838191]  ? shrink_node_memcg+0x18f0/0x18f0
[  305.842784]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  305.847371]  ? trace_hardirqs_on+0xbd/0x310
[  305.851697]  ? vmpressure+0x271/0x340
[  305.855507]  ? do_raw_spin_trylock+0x270/0x270
[  305.860098]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  305.865636]  ? __cpuset_node_allowed+0x19b/0x660
[  305.870397]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  305.876111]  ? vmpressure+0x1a2/0x340
[  305.879923]  do_try_to_free_pages+0x3e7/0x1290
[  305.884505]  ? zap_class+0x640/0x640
[  305.888241]  ? shrink_node+0x16b0/0x16b0
[  305.892312]  ? __lock_is_held+0xb5/0x140
[  305.896387]  try_to_free_pages+0x4d0/0xb90
[  305.900628]  ? do_try_to_free_pages+0x1290/0x1290
[  305.905488]  ? lock_acquire+0x1ed/0x520
[  305.909467]  ? set_page_refcounted+0x280/0x280
[  305.914057]  ? lock_release+0xa00/0xa00
[  305.918036]  ? _raw_spin_unlock_irq+0x60/0x80
[  305.922536]  ? psi_memstall_enter+0x240/0x2b0
[  305.927031]  ? psi_memstall_tick+0x230/0x230
[  305.931452]  __alloc_pages_slowpath+0xa14/0x2e10
[  305.936260]  ? warn_alloc+0x120/0x120
[  305.940073]  ? mark_held_locks+0x130/0x130
[  305.944319]  ? find_get_entry+0xaae/0x1120
[  305.948569]  ? filemap_map_pages+0x1a20/0x1a20
[  305.953161]  ? zap_class+0x640/0x640
[  305.956885]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  305.962430]  ? check_preemption_disabled+0x48/0x280
[  305.967448]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  305.972998]  ? should_fail+0x22d/0xd01
[  305.976896]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  305.982006]  ? zap_class+0x640/0x640
[  305.985749]  ? __lock_is_held+0xb5/0x140
[  305.989861]  ? mark_held_locks+0x130/0x130
[  305.994104]  ? lock_release+0xa00/0xa00
[  305.998082]  ? perf_trace_sched_process_exec+0x860/0x860
[  306.003535]  ? xa_load+0x2ba/0x460
[  306.007081]  ? lock_downgrade+0x900/0x900
[  306.011239]  ? __might_sleep+0x95/0x190
[  306.015222]  __alloc_pages_nodemask+0xa80/0xde0
[  306.019903]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  306.024921]  ? __page_cache_alloc+0x191/0x5c0
[  306.029415]  ? xa_load+0x2e1/0x460
[  306.032961]  ? xa_clear_mark+0x40/0x40
[  306.036871]  ? zap_class+0x640/0x640
[  306.040597]  ? zap_class+0x640/0x640
[  306.044314]  ? zap_class+0x640/0x640
[  306.048033]  ? __do_page_cache_readahead+0x663/0x810
[  306.053144]  ? find_held_lock+0x36/0x1c0
[  306.057215]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  306.062774]  alloc_pages_current+0x173/0x350
[  306.067191]  __page_cache_alloc+0x38c/0x5c0
[  306.071522]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  306.076489]  ? kasan_check_read+0x11/0x20
[  306.080650]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.085933]  ? generic_perform_write+0x6a0/0x6a0
[  306.090692]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.096229]  ? check_preemption_disabled+0x48/0x280
[  306.101259]  filemap_fault+0x1595/0x25f0
[  306.105360]  ? __lock_page_or_retry+0xa00/0xa00
[  306.110048]  ? mark_held_locks+0x130/0x130
[  306.114301]  ? filemap_map_pages+0xd6b/0x1a20
[  306.118803]  ? lock_downgrade+0x900/0x900
[  306.122952]  ? check_preemption_disabled+0x48/0x280
[  306.127972]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  306.132901]  ? kasan_check_read+0x11/0x20
[  306.137050]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.142355]  ? rcu_softirq_qs+0x20/0x20
[  306.146345]  ? filemap_map_pages+0xd92/0x1a20
[  306.150857]  ? find_get_entries_tag+0x1400/0x1400
[  306.155704]  ? find_held_lock+0x36/0x1c0
[  306.159797]  ? lock_acquire+0x1ed/0x520
[  306.163782]  ? ext4_filemap_fault+0x7a/0xad
[  306.168113]  ? lock_release+0xa00/0xa00
[  306.172089]  ? perf_trace_sched_process_exec+0x860/0x860
[  306.177540]  ? print_usage_bug+0xc0/0xc0
[  306.181620]  ? down_read+0x8d/0x120
[  306.185293]  ? ext4_filemap_fault+0x7a/0xad
[  306.189634]  ? __down_interruptible+0x700/0x700
[  306.194335]  ? find_held_lock+0x36/0x1c0
[  306.198398]  ext4_filemap_fault+0x82/0xad
[  306.202552]  __do_fault+0x100/0x6b0
[  306.206183]  ? lock_downgrade+0x900/0x900
[  306.210334]  ? pmd_devmap_trans_unstable+0x220/0x220
[  306.215479]  ? kasan_check_read+0x11/0x20
[  306.219627]  ? do_raw_spin_unlock+0xa7/0x330
[  306.224040]  ? do_raw_spin_trylock+0x270/0x270
[  306.228642]  __handle_mm_fault+0x3ea0/0x5be0
[  306.233067]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  306.237925]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  306.242521]  ? zap_class+0x640/0x640
[  306.246251]  ? zap_class+0x640/0x640
[  306.249974]  ? __x64_sys_futex+0x53e/0x6a0
[  306.254213]  ? find_held_lock+0x36/0x1c0
[  306.258287]  ? handle_mm_fault+0x42a/0xc70
[  306.262528]  ? lock_downgrade+0x900/0x900
[  306.266683]  ? check_preemption_disabled+0x48/0x280
[  306.271707]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  306.276637]  ? kasan_check_read+0x11/0x20
[  306.280799]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.286077]  ? rcu_softirq_qs+0x20/0x20
[  306.290051]  ? trace_hardirqs_off_caller+0x310/0x310
[  306.295159]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.300699]  ? check_preemption_disabled+0x48/0x280
[  306.305725]  handle_mm_fault+0x54f/0xc70
[  306.309803]  ? __handle_mm_fault+0x5be0/0x5be0
[  306.314392]  ? find_vma+0x34/0x190
[  306.317943]  __do_page_fault+0x5e8/0xe60
[  306.322004]  ? trace_hardirqs_off+0xb8/0x310
[  306.326426]  do_page_fault+0xf2/0x7e0
[  306.330231]  ? vmalloc_sync_all+0x30/0x30
[  306.334385]  ? error_entry+0x70/0xd0
[  306.338100]  ? trace_hardirqs_off_caller+0xbb/0x310
[  306.343115]  ? trace_hardirqs_on_caller+0xc0/0x310
[  306.348046]  ? syscall_return_slowpath+0x5e0/0x5e0
[  306.352977]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  306.357826]  ? trace_hardirqs_on_caller+0x310/0x310
[  306.362842]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  306.368309]  ? prepare_exit_to_usermode+0x291/0x3b0
[  306.373332]  ? page_fault+0x8/0x30
[  306.376891]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  306.381739]  ? page_fault+0x8/0x30
[  306.385302]  page_fault+0x1e/0x30
[  306.388771] RIP: 0033:0x404068
[  306.391988] Code: Bad RIP value.
[  306.395358] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  306.400720] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  306.407990] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  306.415263] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  306.422540] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  306.429813] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  306.437118] warn_alloc_show_mem: 1 callbacks suppressed
[  306.437130] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  306.437132] Mem-Info:
[  306.437163] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  306.437163]  active_file:13 inactive_file:28 isolated_file:0
[  306.437163]  unevictable:0 dirty:1 writeback:0 unstable:0
[  306.437163]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  306.437163]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  306.437163]  free:13541 free_pcp:161 free_cma:0
[  306.442516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  306.449818] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  306.452227] Call Trace:
[  306.485276] 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
[  306.494626]  <IRQ>
[  306.522552] lowmem_reserve[]: 0 2818 6321 6321
[  306.525150]  dump_stack+0x244/0x39d
[  306.551240] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  306.553398]  ? dump_stack_print_info.cold.1+0x20/0x20
[  306.557964] lowmem_reserve[]: 0 0 3503 3503
[  306.561608]  warn_alloc.cold.116+0xb7/0x1bd
[  306.589173] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  306.594376]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  306.598677] lowmem_reserve[]: 0 0 0 0
[  306.603006]  ? lock_downgrade+0x900/0x900
[  306.632135] 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
[  306.636984]  ? trace_hardirqs_off+0xb8/0x310
[  306.640783] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  306.644938]  ? trace_hardirqs_off+0xb8/0x310
[  306.658443] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  306.662864]  __alloc_pages_slowpath+0x26e8/0x2e10
[  306.678023] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  306.682448]  ? warn_alloc+0x120/0x120
[  306.696898] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  306.701736]  ? print_usage_bug+0xc0/0xc0
[  306.710557] 4984 total pagecache pages
[  306.714358]  ? warn_alloc+0x120/0x120
[  306.722931] 0 pages in swap cache
[  306.726992]  ? warn_alloc+0x120/0x120
[  306.730871] Swap cache stats: add 0, delete 0, find 0/0
[  306.734674]  ? print_usage_bug+0xc0/0xc0
[  306.738118] Free swap  = 0kB
[  306.741921]  ? print_usage_bug+0xc0/0xc0
[  306.747273] Total swap = 0kB
[  306.751332]  ? __lock_acquire+0x62f/0x4c20
[  306.754340] 1965979 pages RAM
[  306.758406]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  306.761406] 0 pages HighMem/MovableOnly
[  306.765646]  ? should_fail+0x22d/0xd01
[  306.768732] 342853 pages reserved
[  306.768741] 0 pages cma reserved
[  306.774303]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  306.778346] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  306.782147]  ? __lock_acquire+0x62f/0x4c20
[  306.782167]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  306.782184]  ? __lock_acquire+0x62f/0x4c20
[  306.785687] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  306.788997]  ? should_fail+0x22d/0xd01
[  306.794090] syz-fuzzer cpuset=/ mems_allowed=0
[  306.800586]  ? find_held_lock+0x36/0x1c0
[  306.836914]  ? mark_held_locks+0x130/0x130
[  306.841165]  ? mark_held_locks+0x130/0x130
[  306.845413]  ? zap_class+0x640/0x640
[  306.849137]  ? zap_class+0x640/0x640
[  306.852871]  ? print_usage_bug+0xc0/0xc0
[  306.856939]  ? do_raw_spin_unlock+0xa7/0x330
[  306.861360]  ? zap_class+0x640/0x640
[  306.865085]  ? print_usage_bug+0xc0/0xc0
[  306.869155]  ? wq_watchdog_touch+0x9c/0xfe
[  306.873405]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.878956]  ? check_preemption_disabled+0x48/0x280
[  306.883992]  ? __lock_is_held+0xb5/0x140
[  306.888075]  __alloc_pages_nodemask+0xa80/0xde0
[  306.892848]  ? zap_class+0x640/0x640
[  306.896597]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  306.901643]  ? find_held_lock+0x36/0x1c0
[  306.905728]  ? ____cache_alloc_node+0x1c7/0x1e0
[  306.910429]  ? lock_downgrade+0x900/0x900
[  306.914594]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.920148]  cache_grow_begin+0xa5/0x8c0
[  306.924219]  ? do_raw_spin_unlock+0xa7/0x330
[  306.928646]  fallback_alloc+0x204/0x2e0
[  306.932638]  ____cache_alloc_node+0x1c7/0x1e0
[  306.937149]  kmem_cache_alloc_node+0xe3/0x730
[  306.941657]  ? ipv6_get_ifaddr+0x42e/0x620
[  306.946082]  __alloc_skb+0x119/0x770
[  306.949814]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  306.955107]  ? netdev_alloc_frag+0x1f0/0x1f0
[  306.959529]  ? lock_downgrade+0x900/0x900
[  306.963700]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  306.969250]  ? refcount_sub_and_test_checked+0x203/0x310
[  306.974719]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  306.980185]  ? addrconf_rs_timer+0x690/0x690
[  306.984616]  ndisc_alloc_skb+0x144/0x340
[  306.988698]  ndisc_send_rs+0x331/0x6e0
[  306.992603]  addrconf_rs_timer+0x314/0x690
[  306.996858]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.001113]  call_timer_fn+0x272/0x920
[  307.005012]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.009257]  ? process_timeout+0x40/0x40
[  307.013337]  ? __run_timers+0x7da/0xc70
[  307.017324]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.021831]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.026334]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.030583]  ? lockdep_hardirqs_on+0x296/0x5b0
[  307.035178]  ? trace_hardirqs_on+0xbd/0x310
[  307.039510]  ? kasan_check_read+0x11/0x20
[  307.043668]  ? __run_timers+0x7da/0xc70
[  307.047654]  ? trace_hardirqs_off_caller+0x310/0x310
[  307.052794]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.057048]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.061293]  __run_timers+0x7e5/0xc70
[  307.065114]  ? timer_fixup_init+0x70/0x70
[  307.069275]  ? kasan_check_read+0x11/0x20
[  307.073438]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.078726]  ? rcu_softirq_qs+0x20/0x20
[  307.082735]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.088311]  ? check_preemption_disabled+0x48/0x280
[  307.093345]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  307.098119]  ? retint_kernel+0x2d/0x2d
[  307.102018]  ? trace_hardirqs_on_caller+0xc0/0x310
[  307.106964]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  307.111731]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  307.117216]  ? zap_class+0x640/0x640
[  307.120946]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.126498]  ? check_preemption_disabled+0x48/0x280
[  307.131535]  ? __lock_is_held+0xb5/0x140
[  307.135608]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.141160]  ? check_preemption_disabled+0x48/0x280
[  307.146192]  run_timer_softirq+0x52/0xb0
[  307.150263]  ? rcu_read_lock_sched_held+0x14f/0x180
[  307.155289]  __do_softirq+0x308/0xb7e
[  307.159110]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  307.163620]  ? lock_downgrade+0x900/0x900
[  307.167803]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  307.172928]  ? pvclock_read_flags+0x160/0x160
[  307.177439]  ? lapic_next_event+0x5a/0x90
[  307.181604]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.187160]  ? kvm_clock_read+0x18/0x30
[  307.191152]  ? kvm_sched_clock_read+0x9/0x20
[  307.195574]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.201128]  ? check_preemption_disabled+0x48/0x280
[  307.206174]  irq_exit+0x17f/0x1c0
[  307.209638]  smp_apic_timer_interrupt+0x1cb/0x760
[  307.214490]  ? smp_reschedule_interrupt+0x109/0x650
[  307.219518]  ? smp_call_function_single_interrupt+0x650/0x650
[  307.225413]  ? interrupt_entry+0xb5/0xc0
[  307.229488]  ? trace_hardirqs_off_caller+0xbb/0x310
[  307.234517]  ? trace_hardirqs_off_caller+0xbb/0x310
[  307.239547]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.244404]  ? trace_hardirqs_on_caller+0x310/0x310
[  307.249431]  ? trace_hardirqs_on_caller+0x310/0x310
[  307.254460]  ? task_prio+0x50/0x50
[  307.258014]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.263563]  ? check_preemption_disabled+0x48/0x280
[  307.268594]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.273455]  apic_timer_interrupt+0xf/0x20
[  307.277692]  </IRQ>
[  307.279945] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  307.284890] 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
[  307.303806] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  307.311526] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  307.318822] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  307.326101] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  307.333376] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  307.340656] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  307.347975]  skb_clone+0x1bb/0x500
[  307.351527]  ? skb_split+0x11e0/0x11e0
[  307.355430]  ? preempt_notifier_register+0x200/0x200
[  307.360545]  ? __switch_to_asm+0x34/0x70
[  307.364616]  ? __switch_to_asm+0x34/0x70
[  307.368691]  ? __switch_to_asm+0x40/0x70
[  307.372783]  ? __switch_to_asm+0x34/0x70
[  307.376860]  ? __switch_to_asm+0x40/0x70
[  307.380934]  ? __switch_to_asm+0x40/0x70
[  307.385002]  ? __switch_to_asm+0x34/0x70
[  307.389071]  ? __switch_to_asm+0x34/0x70
[  307.393138]  ? __switch_to_asm+0x40/0x70
[  307.397206]  ? __switch_to_asm+0x34/0x70
[  307.401281]  bpf_clone_redirect+0xb9/0x490
[  307.405535]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  307.410568]  ? __sched_text_start+0x8/0x8
[  307.414727]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  307.419521]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  307.424296]  ? find_held_lock+0x36/0x1c0
[  307.428376]  ? lock_acquire+0x1ed/0x520
[  307.432366]  ? bpf_test_run+0x3cb/0x780
[  307.436357]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.441909]  ? check_preemption_disabled+0x48/0x280
[  307.446945]  ? kasan_check_read+0x11/0x20
[  307.451106]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.456398]  ? rcu_softirq_qs+0x20/0x20
[  307.460384]  ? preempt_schedule+0x4d/0x60
[  307.464549]  ? ___preempt_schedule+0x16/0x18
[  307.469065]  ? bpf_test_run+0x25d/0x780
[  307.473062]  ? netlink_diag_dump+0x2a0/0x2a0
[  307.477488]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.483036]  ? bpf_test_init.isra.10+0x70/0x100
[  307.487722]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  307.492501]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  307.497353]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  307.502903]  ? fput+0x130/0x1a0
[  307.506195]  ? __bpf_prog_get+0x9b/0x290
[  307.510272]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  307.515128]  ? bpf_prog_test_run+0x130/0x1a0
[  307.519548]  ? __x64_sys_bpf+0x3d8/0x520
[  307.523621]  ? bpf_prog_get+0x20/0x20
[  307.527452]  ? do_syscall_64+0x1b9/0x820
[  307.531522]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  307.536901]  ? syscall_return_slowpath+0x5e0/0x5e0
[  307.541849]  ? trace_hardirqs_on_caller+0x310/0x310
[  307.546881]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  307.551918]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  307.558594]  ? __switch_to_asm+0x40/0x70
[  307.562665]  ? __switch_to_asm+0x34/0x70
[  307.566745]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  307.571629]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  307.577026] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  307.577114] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  307.583976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  307.583981] Call Trace:
[  307.583987]  <IRQ>
[  307.584005]  dump_stack+0x244/0x39d
[  307.584023]  ? dump_stack_print_info.cold.1+0x20/0x20
[  307.590601] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  307.599881]  warn_alloc.cold.116+0xb7/0x1bd
[  307.602451] syz-executor4 cpuset=syz4 mems_allowed=0
[  307.604608]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  307.638169]  ? lock_downgrade+0x900/0x900
[  307.642338]  ? trace_hardirqs_off+0xb8/0x310
[  307.646786]  ? trace_hardirqs_off+0xb8/0x310
[  307.651223]  __alloc_pages_slowpath+0x26e8/0x2e10
[  307.656111]  ? warn_alloc+0x120/0x120
[  307.659928]  ? print_usage_bug+0xc0/0xc0
[  307.664004]  ? warn_alloc+0x120/0x120
[  307.667826]  ? warn_alloc+0x120/0x120
[  307.671641]  ? print_usage_bug+0xc0/0xc0
[  307.675720]  ? print_usage_bug+0xc0/0xc0
[  307.679811]  ? __lock_acquire+0x62f/0x4c20
[  307.684063]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  307.689612]  ? should_fail+0x22d/0xd01
[  307.693515]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  307.698634]  ? __lock_acquire+0x62f/0x4c20
[  307.702896]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  307.708011]  ? __lock_acquire+0x62f/0x4c20
[  307.712260]  ? should_fail+0x22d/0xd01
[  307.716183]  ? find_held_lock+0x36/0x1c0
[  307.720275]  ? mark_held_locks+0x130/0x130
[  307.724527]  ? mark_held_locks+0x130/0x130
[  307.728790]  ? zap_class+0x640/0x640
[  307.732517]  ? zap_class+0x640/0x640
[  307.736251]  ? print_usage_bug+0xc0/0xc0
[  307.740330]  ? do_raw_spin_unlock+0xa7/0x330
[  307.744750]  ? zap_class+0x640/0x640
[  307.748496]  ? print_usage_bug+0xc0/0xc0
[  307.752569]  ? wq_watchdog_touch+0x9c/0xfe
[  307.756824]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.762376]  ? check_preemption_disabled+0x48/0x280
[  307.767412]  ? __lock_is_held+0xb5/0x140
[  307.771491]  __alloc_pages_nodemask+0xa80/0xde0
[  307.776175]  ? zap_class+0x640/0x640
[  307.779908]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  307.784948]  ? find_held_lock+0x36/0x1c0
[  307.789031]  ? ____cache_alloc_node+0x1c7/0x1e0
[  307.793712]  ? lock_downgrade+0x900/0x900
[  307.797880]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.803434]  cache_grow_begin+0xa5/0x8c0
[  307.807641]  ? do_raw_spin_unlock+0xa7/0x330
[  307.812070]  fallback_alloc+0x204/0x2e0
[  307.816251]  ____cache_alloc_node+0x1c7/0x1e0
[  307.820800]  kmem_cache_alloc_node+0xe3/0x730
[  307.825315]  ? ipv6_get_ifaddr+0x42e/0x620
[  307.829576]  __alloc_skb+0x119/0x770
[  307.833303]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  307.838597]  ? netdev_alloc_frag+0x1f0/0x1f0
[  307.843018]  ? lock_downgrade+0x900/0x900
[  307.847184]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.852738]  ? refcount_sub_and_test_checked+0x203/0x310
[  307.858224]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  307.863685]  ? addrconf_rs_timer+0x690/0x690
[  307.868119]  ndisc_alloc_skb+0x144/0x340
[  307.872198]  ndisc_send_rs+0x331/0x6e0
[  307.876108]  addrconf_rs_timer+0x314/0x690
[  307.880361]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.884619]  call_timer_fn+0x272/0x920
[  307.888522]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.892789]  ? process_timeout+0x40/0x40
[  307.896874]  ? mark_held_locks+0xc7/0x130
[  307.901039]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.905545]  ? _raw_spin_unlock_irq+0x27/0x80
[  307.910052]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.914300]  ? lockdep_hardirqs_on+0x296/0x5b0
[  307.918902]  ? trace_hardirqs_on+0xbd/0x310
[  307.923240]  ? kasan_check_read+0x11/0x20
[  307.927404]  ? __run_timers+0x7da/0xc70
[  307.931391]  ? trace_hardirqs_off_caller+0x310/0x310
[  307.936510]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.940780]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  307.945026]  __run_timers+0x7e5/0xc70
[  307.948852]  ? timer_fixup_init+0x70/0x70
[  307.953015]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  307.958043]  ? zap_class+0x640/0x640
[  307.961793]  ? print_usage_bug+0xc0/0xc0
[  307.965873]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  307.971080]  ? find_held_lock+0x36/0x1c0
[  307.975162]  ? zap_class+0x640/0x640
[  307.978898]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.984450]  ? check_preemption_disabled+0x48/0x280
[  307.989489]  ? __lock_is_held+0xb5/0x140
[  307.993563]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  307.999113]  ? check_preemption_disabled+0x48/0x280
[  308.004148]  run_timer_softirq+0x52/0xb0
[  308.008220]  ? rcu_read_lock_sched_held+0x14f/0x180
[  308.013247]  __do_softirq+0x308/0xb7e
[  308.017068]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  308.021573]  ? lock_downgrade+0x900/0x900
[  308.025734]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  308.030875]  ? pvclock_read_flags+0x160/0x160
[  308.035385]  ? lapic_next_event+0x5a/0x90
[  308.039550]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.045105]  ? kvm_clock_read+0x18/0x30
[  308.049089]  ? kvm_sched_clock_read+0x9/0x20
[  308.053509]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.059059]  ? check_preemption_disabled+0x48/0x280
[  308.064099]  irq_exit+0x17f/0x1c0
[  308.067566]  smp_apic_timer_interrupt+0x1cb/0x760
[  308.072436]  ? smp_reschedule_interrupt+0x109/0x650
[  308.077467]  ? smp_call_function_single_interrupt+0x650/0x650
[  308.083361]  ? interrupt_entry+0xb5/0xc0
[  308.087439]  ? trace_hardirqs_off_caller+0xbb/0x310
[  308.092469]  ? trace_hardirqs_off_caller+0xbb/0x310
[  308.097501]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.102356]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.107384]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.112413]  ? task_prio+0x50/0x50
[  308.115968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.121522]  ? check_preemption_disabled+0x48/0x280
[  308.126560]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.131426]  apic_timer_interrupt+0xf/0x20
[  308.135670]  </IRQ>
[  308.137925] RIP: 0010:check_memory_region+0x121/0x1b0
[  308.143129] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  308.162038] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  308.169778] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  308.177063] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  308.184342] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  308.191623] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  308.198901] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  308.206204]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.211505]  kasan_check_read+0x11/0x20
[  308.215492]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.220610]  ? rcu_softirq_qs+0x20/0x20
[  308.224603]  rcu_is_watching+0x10/0x30
[  308.228506]  list_lru_count_one+0x362/0x450
[  308.232839]  ? list_lru_isolate_move+0x3c0/0x3c0
[  308.237610]  ? shmem_free_inode+0xd0/0xd0
[  308.241795]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.247345]  ? ubifs_shrink_count+0xc4/0x100
[  308.251792]  super_cache_count+0x153/0x2e0
[  308.256051]  do_shrink_slab+0x1b1/0xd30
[  308.260045]  ? lock_acquire+0x1ed/0x520
[  308.264036]  ? snapshot_refaults+0x290/0x290
[  308.268466]  ? lock_release+0xa00/0xa00
[  308.272459]  ? perf_trace_sched_process_exec+0x860/0x860
[  308.277930]  ? down_read_trylock+0xda/0x140
[  308.282261]  ? shrink_slab+0x207/0x8c0
[  308.286165]  ? downgrade_write+0x270/0x270
[  308.290422]  shrink_slab+0x389/0x8c0
[  308.294148]  ? shrink_active_list+0x1f00/0x1f00
[  308.298838]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  308.304481]  ? kasan_check_read+0x11/0x20
[  308.308638]  ? do_raw_spin_unlock+0xa7/0x330
[  308.313062]  ? ___preempt_schedule+0x16/0x18
[  308.317492]  ? _raw_spin_unlock+0x3f/0x50
[  308.321662]  shrink_node+0x431/0x16b0
[  308.325480]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  308.330814]  ? shrink_node_memcg+0x18f0/0x18f0
[  308.335409]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  308.340006]  ? trace_hardirqs_on+0xbd/0x310
[  308.344343]  ? vmpressure+0x271/0x340
[  308.348161]  ? do_raw_spin_trylock+0x270/0x270
[  308.352784]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  308.358337]  ? __cpuset_node_allowed+0x19b/0x660
[  308.363109]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  308.368831]  ? vmpressure+0x1a2/0x340
[  308.372666]  do_try_to_free_pages+0x3e7/0x1290
[  308.377257]  ? zap_class+0x640/0x640
[  308.381004]  ? shrink_node+0x16b0/0x16b0
[  308.385078]  ? __lock_is_held+0xb5/0x140
[  308.389168]  try_to_free_pages+0x4d0/0xb90
[  308.393423]  ? do_try_to_free_pages+0x1290/0x1290
[  308.398293]  ? lock_acquire+0x1ed/0x520
[  308.402282]  ? set_page_refcounted+0x280/0x280
[  308.406885]  ? lock_release+0xa00/0xa00
[  308.410872]  ? _raw_spin_unlock_irq+0x60/0x80
[  308.415380]  ? psi_memstall_enter+0x240/0x2b0
[  308.419887]  ? psi_memstall_tick+0x230/0x230
[  308.424322]  __alloc_pages_slowpath+0xa14/0x2e10
[  308.429119]  ? warn_alloc+0x120/0x120
[  308.432934]  ? mark_held_locks+0x130/0x130
[  308.437188]  ? find_get_entry+0xaae/0x1120
[  308.441445]  ? filemap_map_pages+0x1a20/0x1a20
[  308.446048]  ? zap_class+0x640/0x640
[  308.449800]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  308.455359]  ? check_preemption_disabled+0x48/0x280
[  308.460387]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.465936]  ? should_fail+0x22d/0xd01
[  308.469842]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  308.474963]  ? zap_class+0x640/0x640
[  308.478717]  ? __lock_is_held+0xb5/0x140
[  308.482818]  ? mark_held_locks+0x130/0x130
[  308.487067]  ? lock_release+0xa00/0xa00
[  308.491057]  ? perf_trace_sched_process_exec+0x860/0x860
[  308.496517]  ? xa_load+0x2ba/0x460
[  308.500075]  ? lock_downgrade+0x900/0x900
[  308.504239]  ? __might_sleep+0x95/0x190
[  308.508239]  __alloc_pages_nodemask+0xa80/0xde0
[  308.512930]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  308.517963]  ? __page_cache_alloc+0x191/0x5c0
[  308.522467]  ? xa_load+0x2e1/0x460
[  308.526021]  ? xa_clear_mark+0x40/0x40
[  308.529924]  ? zap_class+0x640/0x640
[  308.533660]  ? zap_class+0x640/0x640
[  308.537387]  ? zap_class+0x640/0x640
[  308.541114]  ? __do_page_cache_readahead+0x663/0x810
[  308.546233]  ? find_held_lock+0x36/0x1c0
[  308.550312]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  308.555866]  alloc_pages_current+0x173/0x350
[  308.560298]  __page_cache_alloc+0x38c/0x5c0
[  308.564799]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  308.569740]  ? kasan_check_read+0x11/0x20
[  308.573922]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.579214]  ? generic_perform_write+0x6a0/0x6a0
[  308.583981]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.589531]  ? check_preemption_disabled+0x48/0x280
[  308.594575]  filemap_fault+0x1595/0x25f0
[  308.598660]  ? __lock_page_or_retry+0xa00/0xa00
[  308.603348]  ? mark_held_locks+0x130/0x130
[  308.607603]  ? filemap_map_pages+0xd6b/0x1a20
[  308.612113]  ? lock_downgrade+0x900/0x900
[  308.616278]  ? check_preemption_disabled+0x48/0x280
[  308.621311]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  308.626250]  ? kasan_check_read+0x11/0x20
[  308.630412]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.635701]  ? rcu_softirq_qs+0x20/0x20
[  308.639700]  ? filemap_map_pages+0xd92/0x1a20
[  308.644219]  ? find_get_entries_tag+0x1400/0x1400
[  308.649073]  ? find_held_lock+0x36/0x1c0
[  308.653168]  ? lock_acquire+0x1ed/0x520
[  308.657152]  ? ext4_filemap_fault+0x7a/0xad
[  308.661490]  ? lock_release+0xa00/0xa00
[  308.665479]  ? perf_trace_sched_process_exec+0x860/0x860
[  308.670940]  ? print_usage_bug+0xc0/0xc0
[  308.675029]  ? down_read+0x8d/0x120
[  308.678663]  ? ext4_filemap_fault+0x7a/0xad
[  308.682997]  ? __down_interruptible+0x700/0x700
[  308.687679]  ? find_held_lock+0x36/0x1c0
[  308.691781]  ext4_filemap_fault+0x82/0xad
[  308.695957]  __do_fault+0x100/0x6b0
[  308.699598]  ? lock_downgrade+0x900/0x900
[  308.703779]  ? pmd_devmap_trans_unstable+0x220/0x220
[  308.708901]  ? kasan_check_read+0x11/0x20
[  308.713059]  ? do_raw_spin_unlock+0xa7/0x330
[  308.717480]  ? do_raw_spin_trylock+0x270/0x270
[  308.722087]  __handle_mm_fault+0x3ea0/0x5be0
[  308.726517]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  308.731379]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  308.735988]  ? zap_class+0x640/0x640
[  308.739714]  ? zap_class+0x640/0x640
[  308.743441]  ? __x64_sys_futex+0x53e/0x6a0
[  308.747691]  ? find_held_lock+0x36/0x1c0
[  308.751792]  ? handle_mm_fault+0x42a/0xc70
[  308.756043]  ? lock_downgrade+0x900/0x900
[  308.760202]  ? check_preemption_disabled+0x48/0x280
[  308.765231]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  308.770170]  ? kasan_check_read+0x11/0x20
[  308.774333]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  308.779625]  ? rcu_softirq_qs+0x20/0x20
[  308.783609]  ? trace_hardirqs_off_caller+0x310/0x310
[  308.788728]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  308.794308]  ? check_preemption_disabled+0x48/0x280
[  308.799342]  handle_mm_fault+0x54f/0xc70
[  308.803418]  ? __handle_mm_fault+0x5be0/0x5be0
[  308.808022]  ? find_vma+0x34/0x190
[  308.811584]  __do_page_fault+0x5e8/0xe60
[  308.815655]  ? trace_hardirqs_off+0xb8/0x310
[  308.820083]  do_page_fault+0xf2/0x7e0
[  308.823894]  ? vmalloc_sync_all+0x30/0x30
[  308.828051]  ? error_entry+0x70/0xd0
[  308.831795]  ? trace_hardirqs_off_caller+0xbb/0x310
[  308.836828]  ? trace_hardirqs_on_caller+0xc0/0x310
[  308.841789]  ? syscall_return_slowpath+0x5e0/0x5e0
[  308.846734]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.851612]  ? trace_hardirqs_on_caller+0x310/0x310
[  308.856640]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  308.862111]  ? prepare_exit_to_usermode+0x291/0x3b0
[  308.867135]  ? page_fault+0x8/0x30
[  308.870688]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  308.875549]  ? page_fault+0x8/0x30
[  308.879103]  page_fault+0x1e/0x30
[  308.882567] RIP: 0033:0x404068
[  308.885807] Code: Bad RIP value.
[  308.889183] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  308.894553] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  308.901832] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  308.909110] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  308.916388] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  308.923664] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  308.930973] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  308.930979] warn_alloc_show_mem: 1 callbacks suppressed
[  308.930986] Mem-Info:
[  308.938271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  308.943658] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  308.943658]  active_file:13 inactive_file:28 isolated_file:0
[  308.943658]  unevictable:0 dirty:1 writeback:0 unstable:0
[  308.943658]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  308.943658]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  308.943658]  free:13541 free_pcp:161 free_cma:0
[  308.946244] Call Trace:
[  308.955650] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  308.988674]  <IRQ>
[  308.991257] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[  309.019200]  dump_stack+0x244/0x39d
[  309.021332] lowmem_reserve[]: 0 2818 6321 6321
[  309.047452]  ? dump_stack_print_info.cold.1+0x20/0x20
[  309.051063] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  309.055743]  warn_alloc.cold.116+0xb7/0x1bd
[  309.060909] lowmem_reserve[]: 0 0 3503 3503
[  309.088502]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  309.092814] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  309.097144]  ? lock_downgrade+0x900/0x900
[  309.101967] lowmem_reserve[]: 0 0 0 0
[  309.131178]  ? trace_hardirqs_off+0xb8/0x310
[  309.135309] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  309.139119]  ? trace_hardirqs_off+0xb8/0x310
[  309.143509] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  309.157042]  __alloc_pages_slowpath+0x26e8/0x2e10
[  309.161435] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  309.176631]  ? warn_alloc+0x120/0x120
[  309.181445] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  309.195923]  ? print_usage_bug+0xc0/0xc0
[  309.199718] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  309.208549]  ? warn_alloc+0x120/0x120
[  309.212601] 4984 total pagecache pages
[  309.221181]  ? warn_alloc+0x120/0x120
[  309.224976] 0 pages in swap cache
[  309.228865]  ? print_usage_bug+0xc0/0xc0
[  309.232655] Swap cache stats: add 0, delete 0, find 0/0
[  309.236107]  ? kvm_clock_read+0x18/0x30
[  309.240156] Free swap  = 0kB
[  309.245521]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  309.249482] Total swap = 0kB
[  309.252507]  ? print_usage_bug+0xc0/0xc0
[  309.257509] 1965979 pages RAM
[  309.260535]  ? __lock_acquire+0x62f/0x4c20
[  309.264586] 0 pages HighMem/MovableOnly
[  309.267695]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.271919] 342853 pages reserved
[  309.275951]  ? should_fail+0x22d/0xd01
[  309.281476] 0 pages cma reserved
[  309.285021]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.288956] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  309.292261]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  309.292276]  ? __lock_acquire+0x62f/0x4c20
[  309.292297]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  309.297621] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  309.304060]  ? __lock_acquire+0x62f/0x4c20
[  309.309149] syz-fuzzer cpuset=/ mems_allowed=0
[  309.313387]  ? should_fail+0x22d/0xd01
[  309.341390]  ? rcu_irq_exit+0x1a2/0x390
[  309.345387]  ? mark_held_locks+0x130/0x130
[  309.349642]  ? mark_held_locks+0x130/0x130
[  309.353898]  ? mark_held_locks+0xc7/0x130
[  309.358059]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  309.363085]  ? zap_class+0x640/0x640
[  309.366817]  ? print_usage_bug+0xc0/0xc0
[  309.370897]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.376450]  ? check_preemption_disabled+0x48/0x280
[  309.381486]  ? __lock_is_held+0xb5/0x140
[  309.385567]  __alloc_pages_nodemask+0xa80/0xde0
[  309.390262]  ? zap_class+0x640/0x640
[  309.394025]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  309.399065]  ? find_held_lock+0x36/0x1c0
[  309.403152]  ? ____cache_alloc_node+0x1c7/0x1e0
[  309.407835]  ? lock_downgrade+0x900/0x900
[  309.412002]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.417556]  cache_grow_begin+0xa5/0x8c0
[  309.421633]  ? do_raw_spin_unlock+0xa7/0x330
[  309.426063]  fallback_alloc+0x204/0x2e0
[  309.430056]  ____cache_alloc_node+0x1c7/0x1e0
[  309.434567]  kmem_cache_alloc_node+0xe3/0x730
[  309.439079]  ? ipv6_get_ifaddr+0x42e/0x620
[  309.443338]  __alloc_skb+0x119/0x770
[  309.447065]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.452359]  ? netdev_alloc_frag+0x1f0/0x1f0
[  309.456802]  ? lock_downgrade+0x900/0x900
[  309.460975]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.466528]  ? refcount_sub_and_test_checked+0x203/0x310
[  309.471996]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  309.477461]  ? addrconf_rs_timer+0x690/0x690
[  309.481895]  ndisc_alloc_skb+0x144/0x340
[  309.485973]  ndisc_send_rs+0x331/0x6e0
[  309.489937]  addrconf_rs_timer+0x314/0x690
[  309.494199]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.498501]  call_timer_fn+0x272/0x920
[  309.502402]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.506648]  ? process_timeout+0x40/0x40
[  309.510726]  ? __run_timers+0x7da/0xc70
[  309.514734]  ? _raw_spin_unlock_irq+0x27/0x80
[  309.519263]  ? _raw_spin_unlock_irq+0x27/0x80
[  309.523791]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.528043]  ? lockdep_hardirqs_on+0x296/0x5b0
[  309.532638]  ? trace_hardirqs_on+0xbd/0x310
[  309.536974]  ? kasan_check_read+0x11/0x20
[  309.541131]  ? __run_timers+0x7da/0xc70
[  309.545120]  ? trace_hardirqs_off_caller+0x310/0x310
[  309.550237]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.554488]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  309.558736]  __run_timers+0x7e5/0xc70
[  309.562583]  ? timer_fixup_init+0x70/0x70
[  309.566746]  ? kasan_check_read+0x11/0x20
[  309.570933]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.576221]  ? rcu_softirq_qs+0x20/0x20
[  309.580214]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.585785]  ? check_preemption_disabled+0x48/0x280
[  309.590832]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  309.595601]  ? retint_kernel+0x2d/0x2d
[  309.599502]  ? trace_hardirqs_on_caller+0xc0/0x310
[  309.604449]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  309.609220]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  309.614687]  ? zap_class+0x640/0x640
[  309.618420]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.623970]  ? check_preemption_disabled+0x48/0x280
[  309.629012]  ? __lock_is_held+0xb5/0x140
[  309.633089]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.638640]  ? check_preemption_disabled+0x48/0x280
[  309.643675]  run_timer_softirq+0x52/0xb0
[  309.647752]  ? rcu_read_lock_sched_held+0x14f/0x180
[  309.652819]  __do_softirq+0x308/0xb7e
[  309.656638]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  309.661146]  ? lock_downgrade+0x900/0x900
[  309.665310]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  309.670437]  ? pvclock_read_flags+0x160/0x160
[  309.674946]  ? lapic_next_event+0x5a/0x90
[  309.679109]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.684667]  ? kvm_clock_read+0x18/0x30
[  309.688657]  ? kvm_sched_clock_read+0x9/0x20
[  309.693078]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.698627]  ? check_preemption_disabled+0x48/0x280
[  309.703663]  irq_exit+0x17f/0x1c0
[  309.707128]  smp_apic_timer_interrupt+0x1cb/0x760
[  309.711984]  ? smp_reschedule_interrupt+0x109/0x650
[  309.717014]  ? smp_call_function_single_interrupt+0x650/0x650
[  309.722913]  ? interrupt_entry+0xb5/0xc0
[  309.726989]  ? trace_hardirqs_off_caller+0xbb/0x310
[  309.732014]  ? trace_hardirqs_off_caller+0xbb/0x310
[  309.737046]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  309.741906]  ? trace_hardirqs_on_caller+0x310/0x310
[  309.746936]  ? trace_hardirqs_on_caller+0x310/0x310
[  309.751964]  ? task_prio+0x50/0x50
[  309.755517]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.761070]  ? check_preemption_disabled+0x48/0x280
[  309.766106]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  309.770985]  apic_timer_interrupt+0xf/0x20
[  309.775228]  </IRQ>
[  309.777478] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  309.782424] 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
[  309.801333] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  309.809054] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  309.816827] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  309.824107] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  309.831384] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  309.838663] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  309.845979]  skb_clone+0x1bb/0x500
[  309.849542]  ? skb_split+0x11e0/0x11e0
[  309.853451]  ? preempt_notifier_register+0x200/0x200
[  309.858563]  ? __switch_to_asm+0x34/0x70
[  309.862632]  ? __switch_to_asm+0x34/0x70
[  309.866706]  ? __switch_to_asm+0x40/0x70
[  309.870795]  ? __switch_to_asm+0x34/0x70
[  309.874870]  ? __switch_to_asm+0x40/0x70
[  309.878945]  ? __switch_to_asm+0x40/0x70
[  309.883018]  ? __switch_to_asm+0x34/0x70
[  309.887091]  ? __switch_to_asm+0x34/0x70
[  309.891161]  ? __switch_to_asm+0x40/0x70
[  309.895230]  ? __switch_to_asm+0x34/0x70
[  309.899309]  bpf_clone_redirect+0xb9/0x490
[  309.903562]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  309.908593]  ? __sched_text_start+0x8/0x8
[  309.912754]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  309.917557]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  309.922332]  ? find_held_lock+0x36/0x1c0
[  309.926415]  ? lock_acquire+0x1ed/0x520
[  309.930400]  ? bpf_test_run+0x3cb/0x780
[  309.934387]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  309.939940]  ? check_preemption_disabled+0x48/0x280
[  309.944975]  ? kasan_check_read+0x11/0x20
[  309.949133]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  309.954421]  ? rcu_softirq_qs+0x20/0x20
[  309.958409]  ? preempt_schedule+0x4d/0x60
[  309.962568]  ? ___preempt_schedule+0x16/0x18
[  309.966998]  ? bpf_test_run+0x25d/0x780
[  309.970994]  ? netlink_diag_dump+0x2a0/0x2a0
[  309.975431]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  309.980983]  ? bpf_test_init.isra.10+0x70/0x100
[  309.985670]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  309.990447]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  309.995303]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  310.000851]  ? fput+0x130/0x1a0
[  310.004144]  ? __bpf_prog_get+0x9b/0x290
[  310.008221]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  310.013076]  ? bpf_prog_test_run+0x130/0x1a0
[  310.017498]  ? __x64_sys_bpf+0x3d8/0x520
[  310.021572]  ? bpf_prog_get+0x20/0x20
[  310.025407]  ? do_syscall_64+0x1b9/0x820
[  310.029482]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  310.034860]  ? syscall_return_slowpath+0x5e0/0x5e0
[  310.039819]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.044851]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  310.049883]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  310.056558]  ? __switch_to_asm+0x40/0x70
[  310.060626]  ? __switch_to_asm+0x34/0x70
[  310.064706]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.069566]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  310.074964] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  310.075034] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  310.081907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  310.081912] Call Trace:
[  310.081919]  <IRQ>
[  310.081936]  dump_stack+0x244/0x39d
[  310.081956]  ? dump_stack_print_info.cold.1+0x20/0x20
[  310.088495] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  310.097826]  warn_alloc.cold.116+0xb7/0x1bd
[  310.100448] syz-executor4 cpuset=syz4 mems_allowed=0
[  310.102606]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  310.136152]  ? lock_downgrade+0x900/0x900
[  310.140327]  ? trace_hardirqs_off+0xb8/0x310
[  310.144757]  ? trace_hardirqs_off+0xb8/0x310
[  310.149211]  __alloc_pages_slowpath+0x26e8/0x2e10
[  310.154094]  ? warn_alloc+0x120/0x120
[  310.157910]  ? print_usage_bug+0xc0/0xc0
[  310.161981]  ? warn_alloc+0x120/0x120
[  310.165818]  ? warn_alloc+0x120/0x120
[  310.169634]  ? print_usage_bug+0xc0/0xc0
[  310.173710]  ? print_usage_bug+0xc0/0xc0
[  310.177800]  ? __lock_acquire+0x62f/0x4c20
[  310.182054]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.187601]  ? should_fail+0x22d/0xd01
[  310.191507]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.196623]  ? __lock_acquire+0x62f/0x4c20
[  310.200874]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.205988]  ? __lock_acquire+0x62f/0x4c20
[  310.210233]  ? should_fail+0x22d/0xd01
[  310.214131]  ? find_held_lock+0x36/0x1c0
[  310.218214]  ? mark_held_locks+0x130/0x130
[  310.222468]  ? mark_held_locks+0x130/0x130
[  310.226712]  ? zap_class+0x640/0x640
[  310.230441]  ? zap_class+0x640/0x640
[  310.234172]  ? print_usage_bug+0xc0/0xc0
[  310.238245]  ? do_raw_spin_unlock+0xa7/0x330
[  310.242671]  ? zap_class+0x640/0x640
[  310.246400]  ? print_usage_bug+0xc0/0xc0
[  310.250469]  ? wq_watchdog_touch+0x9c/0xfe
[  310.254721]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.260287]  ? check_preemption_disabled+0x48/0x280
[  310.265326]  ? __lock_is_held+0xb5/0x140
[  310.269409]  __alloc_pages_nodemask+0xa80/0xde0
[  310.274090]  ? zap_class+0x640/0x640
[  310.277828]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  310.282873]  ? find_held_lock+0x36/0x1c0
[  310.286961]  ? ____cache_alloc_node+0x1c7/0x1e0
[  310.291643]  ? lock_downgrade+0x900/0x900
[  310.295829]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.301382]  cache_grow_begin+0xa5/0x8c0
[  310.305452]  ? do_raw_spin_unlock+0xa7/0x330
[  310.309882]  fallback_alloc+0x204/0x2e0
[  310.313873]  ____cache_alloc_node+0x1c7/0x1e0
[  310.318388]  kmem_cache_alloc_node+0xe3/0x730
[  310.322903]  ? ipv6_get_ifaddr+0x42e/0x620
[  310.327162]  __alloc_skb+0x119/0x770
[  310.330886]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.336177]  ? netdev_alloc_frag+0x1f0/0x1f0
[  310.340599]  ? lock_downgrade+0x900/0x900
[  310.344785]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.350338]  ? refcount_sub_and_test_checked+0x203/0x310
[  310.355825]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  310.361293]  ? addrconf_rs_timer+0x690/0x690
[  310.365726]  ndisc_alloc_skb+0x144/0x340
[  310.369835]  ndisc_send_rs+0x331/0x6e0
[  310.373740]  addrconf_rs_timer+0x314/0x690
[  310.378013]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.382269]  call_timer_fn+0x272/0x920
[  310.386173]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.390417]  ? process_timeout+0x40/0x40
[  310.394497]  ? mark_held_locks+0xc7/0x130
[  310.398662]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.403166]  ? _raw_spin_unlock_irq+0x27/0x80
[  310.407674]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.411921]  ? lockdep_hardirqs_on+0x296/0x5b0
[  310.416515]  ? trace_hardirqs_on+0xbd/0x310
[  310.420852]  ? kasan_check_read+0x11/0x20
[  310.425010]  ? __run_timers+0x7da/0xc70
[  310.428997]  ? trace_hardirqs_off_caller+0x310/0x310
[  310.434117]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.438366]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  310.442609]  __run_timers+0x7e5/0xc70
[  310.446437]  ? timer_fixup_init+0x70/0x70
[  310.450599]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  310.455632]  ? zap_class+0x640/0x640
[  310.459362]  ? print_usage_bug+0xc0/0xc0
[  310.463437]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  310.468645]  ? find_held_lock+0x36/0x1c0
[  310.472722]  ? zap_class+0x640/0x640
[  310.476453]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.482007]  ? check_preemption_disabled+0x48/0x280
[  310.487053]  ? __lock_is_held+0xb5/0x140
[  310.491130]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.496677]  ? check_preemption_disabled+0x48/0x280
[  310.501708]  run_timer_softirq+0x52/0xb0
[  310.505803]  ? rcu_read_lock_sched_held+0x14f/0x180
[  310.510833]  __do_softirq+0x308/0xb7e
[  310.514647]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  310.519155]  ? lock_downgrade+0x900/0x900
[  310.523321]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  310.528444]  ? pvclock_read_flags+0x160/0x160
[  310.532956]  ? lapic_next_event+0x5a/0x90
[  310.537120]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.542675]  ? kvm_clock_read+0x18/0x30
[  310.546662]  ? kvm_sched_clock_read+0x9/0x20
[  310.551083]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.556639]  ? check_preemption_disabled+0x48/0x280
[  310.561676]  irq_exit+0x17f/0x1c0
[  310.565144]  smp_apic_timer_interrupt+0x1cb/0x760
[  310.570003]  ? smp_reschedule_interrupt+0x109/0x650
[  310.575035]  ? smp_call_function_single_interrupt+0x650/0x650
[  310.580934]  ? interrupt_entry+0xb5/0xc0
[  310.585008]  ? trace_hardirqs_off_caller+0xbb/0x310
[  310.590040]  ? trace_hardirqs_off_caller+0xbb/0x310
[  310.595067]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.599924]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.604953]  ? trace_hardirqs_on_caller+0x310/0x310
[  310.609977]  ? task_prio+0x50/0x50
[  310.613531]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.619084]  ? check_preemption_disabled+0x48/0x280
[  310.624116]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  310.628982]  apic_timer_interrupt+0xf/0x20
[  310.633222]  </IRQ>
[  310.635479] RIP: 0010:check_memory_region+0x121/0x1b0
[  310.640679] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  310.659587] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  310.667305] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  310.674586] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  310.681867] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  310.689146] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  310.696427] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  310.703724]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.709025]  kasan_check_read+0x11/0x20
[  310.713013]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  310.718129]  ? rcu_softirq_qs+0x20/0x20
[  310.722126]  rcu_is_watching+0x10/0x30
[  310.726031]  list_lru_count_one+0x362/0x450
[  310.730367]  ? list_lru_isolate_move+0x3c0/0x3c0
[  310.735133]  ? shmem_free_inode+0xd0/0xd0
[  310.739297]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.744850]  ? ubifs_shrink_count+0xc4/0x100
[  310.749280]  super_cache_count+0x153/0x2e0
[  310.753532]  do_shrink_slab+0x1b1/0xd30
[  310.757526]  ? lock_acquire+0x1ed/0x520
[  310.761515]  ? snapshot_refaults+0x290/0x290
[  310.765940]  ? lock_release+0xa00/0xa00
[  310.769943]  ? perf_trace_sched_process_exec+0x860/0x860
[  310.775417]  ? down_read_trylock+0xda/0x140
[  310.779750]  ? shrink_slab+0x207/0x8c0
[  310.783674]  ? downgrade_write+0x270/0x270
[  310.787932]  shrink_slab+0x389/0x8c0
[  310.791655]  ? shrink_active_list+0x1f00/0x1f00
[  310.796343]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  310.801988]  ? kasan_check_read+0x11/0x20
[  310.806148]  ? do_raw_spin_unlock+0xa7/0x330
[  310.810577]  ? ___preempt_schedule+0x16/0x18
[  310.815010]  ? _raw_spin_unlock+0x3f/0x50
[  310.819181]  shrink_node+0x431/0x16b0
[  310.822993]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  310.828313]  ? shrink_node_memcg+0x18f0/0x18f0
[  310.832912]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  310.837513]  ? trace_hardirqs_on+0xbd/0x310
[  310.841854]  ? vmpressure+0x271/0x340
[  310.845669]  ? do_raw_spin_trylock+0x270/0x270
[  310.850268]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  310.855823]  ? __cpuset_node_allowed+0x19b/0x660
[  310.860591]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  310.866317]  ? vmpressure+0x1a2/0x340
[  310.870143]  do_try_to_free_pages+0x3e7/0x1290
[  310.874735]  ? zap_class+0x640/0x640
[  310.878570]  ? shrink_node+0x16b0/0x16b0
[  310.882650]  ? __lock_is_held+0xb5/0x140
[  310.886741]  try_to_free_pages+0x4d0/0xb90
[  310.891021]  ? do_try_to_free_pages+0x1290/0x1290
[  310.895890]  ? lock_acquire+0x1ed/0x520
[  310.899875]  ? set_page_refcounted+0x280/0x280
[  310.904476]  ? lock_release+0xa00/0xa00
[  310.908466]  ? _raw_spin_unlock_irq+0x60/0x80
[  310.912972]  ? psi_memstall_enter+0x240/0x2b0
[  310.917477]  ? psi_memstall_tick+0x230/0x230
[  310.921914]  __alloc_pages_slowpath+0xa14/0x2e10
[  310.926714]  ? warn_alloc+0x120/0x120
[  310.930525]  ? mark_held_locks+0x130/0x130
[  310.934801]  ? find_get_entry+0xaae/0x1120
[  310.939057]  ? filemap_map_pages+0x1a20/0x1a20
[  310.943657]  ? zap_class+0x640/0x640
[  310.947905]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  310.953456]  ? check_preemption_disabled+0x48/0x280
[  310.958487]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  310.964035]  ? should_fail+0x22d/0xd01
[  310.967940]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  310.973058]  ? zap_class+0x640/0x640
[  310.976832]  ? __lock_is_held+0xb5/0x140
[  310.980917]  ? mark_held_locks+0x130/0x130
[  310.985176]  ? lock_release+0xa00/0xa00
[  310.989167]  ? perf_trace_sched_process_exec+0x860/0x860
[  310.994630]  ? xa_load+0x2ba/0x460
[  310.998184]  ? lock_downgrade+0x900/0x900
[  311.002347]  ? __might_sleep+0x95/0x190
[  311.006344]  __alloc_pages_nodemask+0xa80/0xde0
[  311.011039]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  311.016072]  ? __page_cache_alloc+0x191/0x5c0
[  311.020577]  ? xa_load+0x2e1/0x460
[  311.024136]  ? xa_clear_mark+0x40/0x40
[  311.028035]  ? zap_class+0x640/0x640
[  311.031787]  ? zap_class+0x640/0x640
[  311.035517]  ? zap_class+0x640/0x640
[  311.039241]  ? __do_page_cache_readahead+0x663/0x810
[  311.044370]  ? find_held_lock+0x36/0x1c0
[  311.048451]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  311.054007]  alloc_pages_current+0x173/0x350
[  311.058434]  __page_cache_alloc+0x38c/0x5c0
[  311.062788]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  311.067730]  ? kasan_check_read+0x11/0x20
[  311.071911]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.077205]  ? generic_perform_write+0x6a0/0x6a0
[  311.081973]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.087526]  ? check_preemption_disabled+0x48/0x280
[  311.092657]  filemap_fault+0x1595/0x25f0
[  311.096748]  ? __lock_page_or_retry+0xa00/0xa00
[  311.101456]  ? mark_held_locks+0x130/0x130
[  311.105718]  ? filemap_map_pages+0xd6b/0x1a20
[  311.110227]  ? lock_downgrade+0x900/0x900
[  311.114393]  ? check_preemption_disabled+0x48/0x280
[  311.119427]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  311.124367]  ? kasan_check_read+0x11/0x20
[  311.128526]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.133820]  ? rcu_softirq_qs+0x20/0x20
[  311.137842]  ? filemap_map_pages+0xd92/0x1a20
[  311.142366]  ? find_get_entries_tag+0x1400/0x1400
[  311.147217]  ? find_held_lock+0x36/0x1c0
[  311.151313]  ? lock_acquire+0x1ed/0x520
[  311.155303]  ? ext4_filemap_fault+0x7a/0xad
[  311.159647]  ? lock_release+0xa00/0xa00
[  311.163632]  ? perf_trace_sched_process_exec+0x860/0x860
[  311.169097]  ? print_usage_bug+0xc0/0xc0
[  311.173190]  ? down_read+0x8d/0x120
[  311.176832]  ? ext4_filemap_fault+0x7a/0xad
[  311.181166]  ? __down_interruptible+0x700/0x700
[  311.185850]  ? find_held_lock+0x36/0x1c0
[  311.189932]  ext4_filemap_fault+0x82/0xad
[  311.194094]  __do_fault+0x100/0x6b0
[  311.197739]  ? lock_downgrade+0x900/0x900
[  311.201918]  ? pmd_devmap_trans_unstable+0x220/0x220
[  311.207036]  ? kasan_check_read+0x11/0x20
[  311.211192]  ? do_raw_spin_unlock+0xa7/0x330
[  311.215611]  ? do_raw_spin_trylock+0x270/0x270
[  311.220224]  __handle_mm_fault+0x3ea0/0x5be0
[  311.224653]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  311.229516]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  311.234120]  ? zap_class+0x640/0x640
[  311.237851]  ? zap_class+0x640/0x640
[  311.241574]  ? __x64_sys_futex+0x53e/0x6a0
[  311.245848]  ? find_held_lock+0x36/0x1c0
[  311.249929]  ? handle_mm_fault+0x42a/0xc70
[  311.254178]  ? lock_downgrade+0x900/0x900
[  311.258341]  ? check_preemption_disabled+0x48/0x280
[  311.263374]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  311.268313]  ? kasan_check_read+0x11/0x20
[  311.272470]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.277778]  ? rcu_softirq_qs+0x20/0x20
[  311.281789]  ? trace_hardirqs_off_caller+0x310/0x310
[  311.286914]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.292464]  ? check_preemption_disabled+0x48/0x280
[  311.297499]  handle_mm_fault+0x54f/0xc70
[  311.301577]  ? __handle_mm_fault+0x5be0/0x5be0
[  311.306175]  ? find_vma+0x34/0x190
[  311.309734]  __do_page_fault+0x5e8/0xe60
[  311.313825]  ? trace_hardirqs_off+0xb8/0x310
[  311.318254]  do_page_fault+0xf2/0x7e0
[  311.322074]  ? vmalloc_sync_all+0x30/0x30
[  311.326236]  ? error_entry+0x70/0xd0
[  311.330013]  ? trace_hardirqs_off_caller+0xbb/0x310
[  311.335044]  ? trace_hardirqs_on_caller+0xc0/0x310
[  311.340031]  ? syscall_return_slowpath+0x5e0/0x5e0
[  311.344969]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  311.349844]  ? trace_hardirqs_on_caller+0x310/0x310
[  311.354874]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  311.360342]  ? prepare_exit_to_usermode+0x291/0x3b0
[  311.365366]  ? page_fault+0x8/0x30
[  311.368921]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  311.373796]  ? page_fault+0x8/0x30
[  311.377354]  page_fault+0x1e/0x30
[  311.380820] RIP: 0033:0x404068
[  311.384041] Code: Bad RIP value.
[  311.387412] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  311.392807] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  311.400084] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  311.407362] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  311.414639] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  311.421917] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  311.429219] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  311.429225] warn_alloc_show_mem: 1 callbacks suppressed
[  311.429232] Mem-Info:
[  311.436515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  311.441895] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  311.441895]  active_file:13 inactive_file:28 isolated_file:0
[  311.441895]  unevictable:0 dirty:1 writeback:0 unstable:0
[  311.441895]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  311.441895]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  311.441895]  free:13541 free_pcp:161 free_cma:0
[  311.444283] Call Trace:
[  311.453683] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  311.487750]  <IRQ>
[  311.490350] 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
[  311.518292]  dump_stack+0x244/0x39d
[  311.520430] lowmem_reserve[]: 0 2818 6321 6321
[  311.546546]  ? dump_stack_print_info.cold.1+0x20/0x20
[  311.550161] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  311.554757]  warn_alloc.cold.116+0xb7/0x1bd
[  311.559950] lowmem_reserve[]: 0 0 3503 3503
[  311.587540]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  311.591846] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  311.596172]  ? lock_downgrade+0x900/0x900
[  311.600998] lowmem_reserve[]: 0 0 0 0
[  311.630154]  ? trace_hardirqs_off+0xb8/0x310
[  311.634287] 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
[  311.638091]  ? trace_hardirqs_off+0xb8/0x310
[  311.642477] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  311.656001]  __alloc_pages_slowpath+0x26e8/0x2e10
[  311.660387] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  311.675575]  ? warn_alloc+0x120/0x120
[  311.680383] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  311.694854]  ? print_usage_bug+0xc0/0xc0
[  311.698632] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  311.707452]  ? warn_alloc+0x120/0x120
[  311.711510] 4984 total pagecache pages
[  311.720423]  ? warn_alloc+0x120/0x120
[  311.724223] 0 pages in swap cache
[  311.728099]  ? print_usage_bug+0xc0/0xc0
[  311.731881] Swap cache stats: add 0, delete 0, find 0/0
[  311.735332]  ? print_usage_bug+0xc0/0xc0
[  311.739374] Free swap  = 0kB
[  311.744746]  ? __lock_acquire+0x62f/0x4c20
[  311.748824] Total swap = 0kB
[  311.751843]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  311.756084] 1965979 pages RAM
[  311.759096]  ? should_fail+0x22d/0xd01
[  311.764608] 0 pages HighMem/MovableOnly
[  311.767709]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  311.771576] 342853 pages reserved
[  311.775544]  ? __lock_acquire+0x62f/0x4c20
[  311.780620] 0 pages cma reserved
[  311.784072]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  311.788362] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  311.791693]  ? __lock_acquire+0x62f/0x4c20
[  311.791706]  ? should_fail+0x22d/0xd01
[  311.791734]  ? find_held_lock+0x36/0x1c0
[  311.791755]  ? mark_held_locks+0x130/0x130
[  311.796941] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  311.803370]  ? mark_held_locks+0x130/0x130
[  311.807582] syz-fuzzer cpuset=/ mems_allowed=0
[  311.811462]  ? zap_class+0x640/0x640
[  311.842657]  ? zap_class+0x640/0x640
[  311.846374]  ? print_usage_bug+0xc0/0xc0
[  311.850463]  ? do_raw_spin_unlock+0xa7/0x330
[  311.854877]  ? zap_class+0x640/0x640
[  311.858590]  ? print_usage_bug+0xc0/0xc0
[  311.862653]  ? wq_watchdog_touch+0x9c/0xfe
[  311.866894]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.872437]  ? check_preemption_disabled+0x48/0x280
[  311.877464]  ? __lock_is_held+0xb5/0x140
[  311.881529]  __alloc_pages_nodemask+0xa80/0xde0
[  311.886200]  ? zap_class+0x640/0x640
[  311.889935]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  311.894981]  ? find_held_lock+0x36/0x1c0
[  311.899073]  ? ____cache_alloc_node+0x1c7/0x1e0
[  311.903744]  ? lock_downgrade+0x900/0x900
[  311.907913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.913457]  cache_grow_begin+0xa5/0x8c0
[  311.917518]  ? do_raw_spin_unlock+0xa7/0x330
[  311.921932]  fallback_alloc+0x204/0x2e0
[  311.925915]  ____cache_alloc_node+0x1c7/0x1e0
[  311.930418]  kmem_cache_alloc_node+0xe3/0x730
[  311.934920]  ? ipv6_get_ifaddr+0x42e/0x620
[  311.939184]  __alloc_skb+0x119/0x770
[  311.942896]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  311.948182]  ? netdev_alloc_frag+0x1f0/0x1f0
[  311.952605]  ? lock_downgrade+0x900/0x900
[  311.956768]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  311.962313]  ? refcount_sub_and_test_checked+0x203/0x310
[  311.967785]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  311.973239]  ? addrconf_rs_timer+0x690/0x690
[  311.977680]  ndisc_alloc_skb+0x144/0x340
[  311.981748]  ndisc_send_rs+0x331/0x6e0
[  311.985652]  addrconf_rs_timer+0x314/0x690
[  311.989895]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  311.994160]  call_timer_fn+0x272/0x920
[  311.998081]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.002322]  ? process_timeout+0x40/0x40
[  312.006433]  ? __run_timers+0x7da/0xc70
[  312.010410]  ? _raw_spin_unlock_irq+0x27/0x80
[  312.014903]  ? _raw_spin_unlock_irq+0x27/0x80
[  312.019401]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.023637]  ? lockdep_hardirqs_on+0x296/0x5b0
[  312.028267]  ? trace_hardirqs_on+0xbd/0x310
[  312.032608]  ? kasan_check_read+0x11/0x20
[  312.036758]  ? __run_timers+0x7da/0xc70
[  312.040749]  ? trace_hardirqs_off_caller+0x310/0x310
[  312.045870]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.050110]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.054345]  __run_timers+0x7e5/0xc70
[  312.058157]  ? timer_fixup_init+0x70/0x70
[  312.062312]  ? kasan_check_read+0x11/0x20
[  312.066458]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.071748]  ? rcu_softirq_qs+0x20/0x20
[  312.075751]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.081302]  ? check_preemption_disabled+0x48/0x280
[  312.086344]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  312.091118]  ? retint_kernel+0x2d/0x2d
[  312.095012]  ? trace_hardirqs_on_caller+0xc0/0x310
[  312.099943]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  312.104704]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  312.110159]  ? zap_class+0x640/0x640
[  312.113884]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.119424]  ? check_preemption_disabled+0x48/0x280
[  312.124451]  ? __lock_is_held+0xb5/0x140
[  312.128514]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.134056]  ? check_preemption_disabled+0x48/0x280
[  312.139081]  run_timer_softirq+0x52/0xb0
[  312.143167]  ? rcu_read_lock_sched_held+0x14f/0x180
[  312.148191]  __do_softirq+0x308/0xb7e
[  312.151999]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  312.156494]  ? lock_downgrade+0x900/0x900
[  312.160645]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  312.165756]  ? pvclock_read_flags+0x160/0x160
[  312.170268]  ? lapic_next_event+0x5a/0x90
[  312.174423]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.179968]  ? kvm_clock_read+0x18/0x30
[  312.183945]  ? kvm_sched_clock_read+0x9/0x20
[  312.188356]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.193898]  ? check_preemption_disabled+0x48/0x280
[  312.198923]  irq_exit+0x17f/0x1c0
[  312.202381]  smp_apic_timer_interrupt+0x1cb/0x760
[  312.207256]  ? smp_reschedule_interrupt+0x109/0x650
[  312.212273]  ? smp_call_function_single_interrupt+0x650/0x650
[  312.218156]  ? interrupt_entry+0xb5/0xc0
[  312.222219]  ? trace_hardirqs_off_caller+0xbb/0x310
[  312.227265]  ? trace_hardirqs_off_caller+0xbb/0x310
[  312.232301]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  312.237146]  ? trace_hardirqs_on_caller+0x310/0x310
[  312.242162]  ? trace_hardirqs_on_caller+0x310/0x310
[  312.247183]  ? task_prio+0x50/0x50
[  312.250769]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.256324]  ? check_preemption_disabled+0x48/0x280
[  312.261365]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  312.266251]  apic_timer_interrupt+0xf/0x20
[  312.270500]  </IRQ>
[  312.272741] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  312.277701] 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
[  312.296598] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  312.304307] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  312.311579] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  312.318848] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  312.326113] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  312.333379] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  312.340701]  skb_clone+0x1bb/0x500
[  312.344244]  ? skb_split+0x11e0/0x11e0
[  312.348164]  ? preempt_notifier_register+0x200/0x200
[  312.353283]  ? __switch_to_asm+0x34/0x70
[  312.357342]  ? __switch_to_asm+0x34/0x70
[  312.361402]  ? __switch_to_asm+0x40/0x70
[  312.365463]  ? __switch_to_asm+0x34/0x70
[  312.369583]  ? __switch_to_asm+0x40/0x70
[  312.373642]  ? __switch_to_asm+0x40/0x70
[  312.377705]  ? __switch_to_asm+0x34/0x70
[  312.381781]  ? __switch_to_asm+0x34/0x70
[  312.385860]  ? __switch_to_asm+0x40/0x70
[  312.389920]  ? __switch_to_asm+0x34/0x70
[  312.393987]  bpf_clone_redirect+0xb9/0x490
[  312.398233]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  312.403254]  ? __sched_text_start+0x8/0x8
[  312.407422]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  312.412184]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  312.416946]  ? find_held_lock+0x36/0x1c0
[  312.421018]  ? lock_acquire+0x1ed/0x520
[  312.425013]  ? bpf_test_run+0x3cb/0x780
[  312.428990]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.434533]  ? check_preemption_disabled+0x48/0x280
[  312.439556]  ? kasan_check_read+0x11/0x20
[  312.443720]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.449004]  ? rcu_softirq_qs+0x20/0x20
[  312.452984]  ? preempt_schedule+0x4d/0x60
[  312.457135]  ? ___preempt_schedule+0x16/0x18
[  312.461552]  ? bpf_test_run+0x25d/0x780
[  312.465543]  ? netlink_diag_dump+0x2a0/0x2a0
[  312.469955]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.475493]  ? bpf_test_init.isra.10+0x70/0x100
[  312.480168]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  312.484938]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  312.489792]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  312.495333]  ? fput+0x130/0x1a0
[  312.498618]  ? __bpf_prog_get+0x9b/0x290
[  312.502688]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  312.507531]  ? bpf_prog_test_run+0x130/0x1a0
[  312.511950]  ? __x64_sys_bpf+0x3d8/0x520
[  312.516013]  ? bpf_prog_get+0x20/0x20
[  312.519835]  ? do_syscall_64+0x1b9/0x820
[  312.523901]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  312.529270]  ? syscall_return_slowpath+0x5e0/0x5e0
[  312.534203]  ? trace_hardirqs_on_caller+0x310/0x310
[  312.539234]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  312.544272]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  312.550953]  ? __switch_to_asm+0x40/0x70
[  312.555011]  ? __switch_to_asm+0x34/0x70
[  312.559080]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  312.563933]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  312.569318] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  312.569407] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  312.576249] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  312.576255] Call Trace:
[  312.576261]  <IRQ>
[  312.576286]  dump_stack+0x244/0x39d
[  312.576304]  ? dump_stack_print_info.cold.1+0x20/0x20
[  312.582877] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  312.592152]  warn_alloc.cold.116+0xb7/0x1bd
[  312.594725] syz-executor4 cpuset=syz4 mems_allowed=0
[  312.596868]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  312.630377]  ? lock_downgrade+0x900/0x900
[  312.634551]  ? trace_hardirqs_off+0xb8/0x310
[  312.638970]  ? trace_hardirqs_off+0xb8/0x310
[  312.643391]  __alloc_pages_slowpath+0x26e8/0x2e10
[  312.648263]  ? warn_alloc+0x120/0x120
[  312.652074]  ? print_usage_bug+0xc0/0xc0
[  312.656140]  ? warn_alloc+0x120/0x120
[  312.659947]  ? warn_alloc+0x120/0x120
[  312.663753]  ? print_usage_bug+0xc0/0xc0
[  312.667832]  ? print_usage_bug+0xc0/0xc0
[  312.671896]  ? __lock_acquire+0x62f/0x4c20
[  312.676137]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  312.681679]  ? should_fail+0x22d/0xd01
[  312.685576]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  312.690682]  ? __lock_acquire+0x62f/0x4c20
[  312.694928]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  312.700033]  ? __lock_acquire+0x62f/0x4c20
[  312.704276]  ? should_fail+0x22d/0xd01
[  312.708164]  ? find_held_lock+0x36/0x1c0
[  312.712234]  ? mark_held_locks+0x130/0x130
[  312.716474]  ? mark_held_locks+0x130/0x130
[  312.720707]  ? zap_class+0x640/0x640
[  312.724421]  ? zap_class+0x640/0x640
[  312.728137]  ? print_usage_bug+0xc0/0xc0
[  312.732199]  ? do_raw_spin_unlock+0xa7/0x330
[  312.736613]  ? zap_class+0x640/0x640
[  312.740333]  ? print_usage_bug+0xc0/0xc0
[  312.744397]  ? wq_watchdog_touch+0x9c/0xfe
[  312.748638]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.754184]  ? check_preemption_disabled+0x48/0x280
[  312.759243]  ? __lock_is_held+0xb5/0x140
[  312.763316]  __alloc_pages_nodemask+0xa80/0xde0
[  312.767993]  ? zap_class+0x640/0x640
[  312.771715]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  312.776745]  ? find_held_lock+0x36/0x1c0
[  312.780840]  ? ____cache_alloc_node+0x1c7/0x1e0
[  312.785513]  ? lock_downgrade+0x900/0x900
[  312.789670]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.795215]  cache_grow_begin+0xa5/0x8c0
[  312.799286]  ? do_raw_spin_unlock+0xa7/0x330
[  312.803708]  fallback_alloc+0x204/0x2e0
[  312.807703]  ____cache_alloc_node+0x1c7/0x1e0
[  312.812240]  kmem_cache_alloc_node+0xe3/0x730
[  312.816794]  ? ipv6_get_ifaddr+0x42e/0x620
[  312.821042]  __alloc_skb+0x119/0x770
[  312.824759]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  312.830058]  ? netdev_alloc_frag+0x1f0/0x1f0
[  312.834479]  ? lock_downgrade+0x900/0x900
[  312.838637]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.844179]  ? refcount_sub_and_test_checked+0x203/0x310
[  312.849638]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  312.855092]  ? addrconf_rs_timer+0x690/0x690
[  312.859520]  ndisc_alloc_skb+0x144/0x340
[  312.863588]  ndisc_send_rs+0x331/0x6e0
[  312.867486]  addrconf_rs_timer+0x314/0x690
[  312.871745]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.875998]  call_timer_fn+0x272/0x920
[  312.879889]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.884125]  ? process_timeout+0x40/0x40
[  312.888196]  ? mark_held_locks+0xc7/0x130
[  312.892347]  ? _raw_spin_unlock_irq+0x27/0x80
[  312.896840]  ? _raw_spin_unlock_irq+0x27/0x80
[  312.901334]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.905571]  ? lockdep_hardirqs_on+0x296/0x5b0
[  312.910157]  ? trace_hardirqs_on+0xbd/0x310
[  312.914483]  ? kasan_check_read+0x11/0x20
[  312.918628]  ? __run_timers+0x7da/0xc70
[  312.922607]  ? trace_hardirqs_off_caller+0x310/0x310
[  312.927718]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.931960]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  312.936194]  __run_timers+0x7e5/0xc70
[  312.940009]  ? timer_fixup_init+0x70/0x70
[  312.944160]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  312.949698]  ? zap_class+0x640/0x640
[  312.953418]  ? print_usage_bug+0xc0/0xc0
[  312.957482]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  312.962680]  ? find_held_lock+0x36/0x1c0
[  312.966753]  ? zap_class+0x640/0x640
[  312.970485]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.976026]  ? check_preemption_disabled+0x48/0x280
[  312.981057]  ? __lock_is_held+0xb5/0x140
[  312.985132]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  312.990670]  ? check_preemption_disabled+0x48/0x280
[  312.995697]  run_timer_softirq+0x52/0xb0
[  312.999773]  ? rcu_read_lock_sched_held+0x14f/0x180
[  313.004799]  __do_softirq+0x308/0xb7e
[  313.008608]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  313.013102]  ? lock_downgrade+0x900/0x900
[  313.017289]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  313.022400]  ? pvclock_read_flags+0x160/0x160
[  313.026903]  ? lapic_next_event+0x5a/0x90
[  313.031055]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.036648]  ? kvm_clock_read+0x18/0x30
[  313.040639]  ? kvm_sched_clock_read+0x9/0x20
[  313.045051]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.050593]  ? check_preemption_disabled+0x48/0x280
[  313.055621]  irq_exit+0x17f/0x1c0
[  313.059078]  smp_apic_timer_interrupt+0x1cb/0x760
[  313.063921]  ? smp_reschedule_interrupt+0x109/0x650
[  313.068943]  ? smp_call_function_single_interrupt+0x650/0x650
[  313.074847]  ? interrupt_entry+0xb5/0xc0
[  313.078909]  ? trace_hardirqs_off_caller+0xbb/0x310
[  313.083929]  ? trace_hardirqs_off_caller+0xbb/0x310
[  313.088951]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.093803]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.098820]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.103840]  ? task_prio+0x50/0x50
[  313.107382]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.112943]  ? check_preemption_disabled+0x48/0x280
[  313.117965]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.122820]  apic_timer_interrupt+0xf/0x20
[  313.127054]  </IRQ>
[  313.129306] RIP: 0010:check_memory_region+0x121/0x1b0
[  313.134501] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  313.153403] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  313.161115] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  313.168382] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  313.175650] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  313.182919] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  313.190216] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  313.197519]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.202812]  kasan_check_read+0x11/0x20
[  313.206815]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.211965]  ? rcu_softirq_qs+0x20/0x20
[  313.215951]  rcu_is_watching+0x10/0x30
[  313.219842]  list_lru_count_one+0x362/0x450
[  313.224169]  ? list_lru_isolate_move+0x3c0/0x3c0
[  313.228925]  ? shmem_free_inode+0xd0/0xd0
[  313.233076]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  313.238618]  ? ubifs_shrink_count+0xc4/0x100
[  313.243039]  super_cache_count+0x153/0x2e0
[  313.247285]  do_shrink_slab+0x1b1/0xd30
[  313.251289]  ? lock_acquire+0x1ed/0x520
[  313.255278]  ? snapshot_refaults+0x290/0x290
[  313.259689]  ? lock_release+0xa00/0xa00
[  313.263671]  ? perf_trace_sched_process_exec+0x860/0x860
[  313.269134]  ? down_read_trylock+0xda/0x140
[  313.273452]  ? shrink_slab+0x207/0x8c0
[  313.277360]  ? downgrade_write+0x270/0x270
[  313.281605]  shrink_slab+0x389/0x8c0
[  313.285319]  ? shrink_active_list+0x1f00/0x1f00
[  313.290002]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  313.295633]  ? kasan_check_read+0x11/0x20
[  313.299785]  ? do_raw_spin_unlock+0xa7/0x330
[  313.304207]  ? ___preempt_schedule+0x16/0x18
[  313.308627]  ? _raw_spin_unlock+0x3f/0x50
[  313.312821]  shrink_node+0x431/0x16b0
[  313.316624]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  313.321926]  ? shrink_node_memcg+0x18f0/0x18f0
[  313.326514]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  313.331123]  ? trace_hardirqs_on+0xbd/0x310
[  313.335445]  ? vmpressure+0x271/0x340
[  313.339251]  ? do_raw_spin_trylock+0x270/0x270
[  313.343850]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  313.349396]  ? __cpuset_node_allowed+0x19b/0x660
[  313.354170]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  313.359899]  ? vmpressure+0x1a2/0x340
[  313.363709]  do_try_to_free_pages+0x3e7/0x1290
[  313.368311]  ? zap_class+0x640/0x640
[  313.372057]  ? shrink_node+0x16b0/0x16b0
[  313.376123]  ? __lock_is_held+0xb5/0x140
[  313.380200]  try_to_free_pages+0x4d0/0xb90
[  313.384445]  ? do_try_to_free_pages+0x1290/0x1290
[  313.389307]  ? lock_acquire+0x1ed/0x520
[  313.393286]  ? set_page_refcounted+0x280/0x280
[  313.397875]  ? lock_release+0xa00/0xa00
[  313.401869]  ? _raw_spin_unlock_irq+0x60/0x80
[  313.406367]  ? psi_memstall_enter+0x240/0x2b0
[  313.410865]  ? psi_memstall_tick+0x230/0x230
[  313.415294]  __alloc_pages_slowpath+0xa14/0x2e10
[  313.420083]  ? warn_alloc+0x120/0x120
[  313.423887]  ? mark_held_locks+0x130/0x130
[  313.428132]  ? find_get_entry+0xaae/0x1120
[  313.432379]  ? filemap_map_pages+0x1a20/0x1a20
[  313.436967]  ? zap_class+0x640/0x640
[  313.440687]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  313.446229]  ? check_preemption_disabled+0x48/0x280
[  313.451267]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  313.456827]  ? should_fail+0x22d/0xd01
[  313.460724]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  313.465830]  ? zap_class+0x640/0x640
[  313.469573]  ? __lock_is_held+0xb5/0x140
[  313.473647]  ? mark_held_locks+0x130/0x130
[  313.477888]  ? lock_release+0xa00/0xa00
[  313.481867]  ? perf_trace_sched_process_exec+0x860/0x860
[  313.487322]  ? xa_load+0x2ba/0x460
[  313.490864]  ? lock_downgrade+0x900/0x900
[  313.495017]  ? __might_sleep+0x95/0x190
[  313.499002]  __alloc_pages_nodemask+0xa80/0xde0
[  313.503683]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  313.508705]  ? __page_cache_alloc+0x191/0x5c0
[  313.513201]  ? xa_load+0x2e1/0x460
[  313.516749]  ? xa_clear_mark+0x40/0x40
[  313.520650]  ? zap_class+0x640/0x640
[  313.524377]  ? zap_class+0x640/0x640
[  313.528090]  ? zap_class+0x640/0x640
[  313.531820]  ? __do_page_cache_readahead+0x663/0x810
[  313.536934]  ? find_held_lock+0x36/0x1c0
[  313.541007]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  313.546554]  alloc_pages_current+0x173/0x350
[  313.550970]  __page_cache_alloc+0x38c/0x5c0
[  313.555311]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  313.560240]  ? kasan_check_read+0x11/0x20
[  313.564409]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.569735]  ? generic_perform_write+0x6a0/0x6a0
[  313.574502]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  313.580044]  ? check_preemption_disabled+0x48/0x280
[  313.585088]  filemap_fault+0x1595/0x25f0
[  313.589165]  ? __lock_page_or_retry+0xa00/0xa00
[  313.593886]  ? mark_held_locks+0x130/0x130
[  313.598136]  ? filemap_map_pages+0xd6b/0x1a20
[  313.602633]  ? lock_downgrade+0x900/0x900
[  313.606789]  ? check_preemption_disabled+0x48/0x280
[  313.611823]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  313.616756]  ? kasan_check_read+0x11/0x20
[  313.620914]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.626191]  ? rcu_softirq_qs+0x20/0x20
[  313.630179]  ? filemap_map_pages+0xd92/0x1a20
[  313.634687]  ? find_get_entries_tag+0x1400/0x1400
[  313.639529]  ? find_held_lock+0x36/0x1c0
[  313.643611]  ? lock_acquire+0x1ed/0x520
[  313.647589]  ? ext4_filemap_fault+0x7a/0xad
[  313.651920]  ? lock_release+0xa00/0xa00
[  313.655895]  ? perf_trace_sched_process_exec+0x860/0x860
[  313.661348]  ? print_usage_bug+0xc0/0xc0
[  313.665429]  ? down_read+0x8d/0x120
[  313.669055]  ? ext4_filemap_fault+0x7a/0xad
[  313.673380]  ? __down_interruptible+0x700/0x700
[  313.678057]  ? find_held_lock+0x36/0x1c0
[  313.682124]  ext4_filemap_fault+0x82/0xad
[  313.686279]  __do_fault+0x100/0x6b0
[  313.689910]  ? lock_downgrade+0x900/0x900
[  313.694061]  ? pmd_devmap_trans_unstable+0x220/0x220
[  313.699169]  ? kasan_check_read+0x11/0x20
[  313.703314]  ? do_raw_spin_unlock+0xa7/0x330
[  313.707744]  ? do_raw_spin_trylock+0x270/0x270
[  313.712366]  __handle_mm_fault+0x3ea0/0x5be0
[  313.716794]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  313.721649]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  313.726250]  ? zap_class+0x640/0x640
[  313.730004]  ? zap_class+0x640/0x640
[  313.733724]  ? __x64_sys_futex+0x53e/0x6a0
[  313.737972]  ? find_held_lock+0x36/0x1c0
[  313.742045]  ? handle_mm_fault+0x42a/0xc70
[  313.746321]  ? lock_downgrade+0x900/0x900
[  313.750499]  ? check_preemption_disabled+0x48/0x280
[  313.755543]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  313.760491]  ? kasan_check_read+0x11/0x20
[  313.764671]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  313.769968]  ? rcu_softirq_qs+0x20/0x20
[  313.773950]  ? trace_hardirqs_off_caller+0x310/0x310
[  313.779057]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  313.784595]  ? check_preemption_disabled+0x48/0x280
[  313.789624]  handle_mm_fault+0x54f/0xc70
[  313.793706]  ? __handle_mm_fault+0x5be0/0x5be0
[  313.798301]  ? find_vma+0x34/0x190
[  313.801852]  __do_page_fault+0x5e8/0xe60
[  313.805917]  ? trace_hardirqs_off+0xb8/0x310
[  313.810342]  do_page_fault+0xf2/0x7e0
[  313.814313]  ? vmalloc_sync_all+0x30/0x30
[  313.818467]  ? error_entry+0x70/0xd0
[  313.822183]  ? trace_hardirqs_off_caller+0xbb/0x310
[  313.827216]  ? trace_hardirqs_on_caller+0xc0/0x310
[  313.832163]  ? syscall_return_slowpath+0x5e0/0x5e0
[  313.837092]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.841941]  ? trace_hardirqs_on_caller+0x310/0x310
[  313.846963]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  313.852421]  ? prepare_exit_to_usermode+0x291/0x3b0
[  313.857439]  ? page_fault+0x8/0x30
[  313.860982]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  313.865829]  ? page_fault+0x8/0x30
[  313.869381]  page_fault+0x1e/0x30
[  313.872832] RIP: 0033:0x404068
[  313.876042] Code: Bad RIP value.
[  313.879404] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  313.884776] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  313.892049] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  313.899318] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  313.906583] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  313.913874] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  313.921166] warn_alloc_show_mem: 1 callbacks suppressed
[  313.921178] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  313.921180] Mem-Info:
[  313.921211] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  313.921211]  active_file:13 inactive_file:28 isolated_file:0
[  313.921211]  unevictable:0 dirty:1 writeback:0 unstable:0
[  313.921211]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  313.921211]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  313.921211]  free:13541 free_pcp:161 free_cma:0
[  313.926556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  313.933833] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  313.936234] Call Trace:
[  313.969271] 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
[  313.978614]  <IRQ>
[  314.006536] lowmem_reserve[]: 0 2818 6321 6321
[  314.009129]  dump_stack+0x244/0x39d
[  314.035210] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  314.037361]  ? dump_stack_print_info.cold.1+0x20/0x20
[  314.041914] lowmem_reserve[]: 0 0 3503 3503
[  314.045543]  warn_alloc.cold.116+0xb7/0x1bd
[  314.073099] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  314.078312]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  314.082608] lowmem_reserve[]: 0 0 0 0
[  314.086931]  ? lock_downgrade+0x900/0x900
[  314.116051] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  314.120919]  ? trace_hardirqs_off+0xb8/0x310
[  314.124689] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  314.128833]  ? trace_hardirqs_off+0xb8/0x310
[  314.142331] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  314.146741]  __alloc_pages_slowpath+0x26e8/0x2e10
[  314.161890] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  314.166307]  ? warn_alloc+0x120/0x120
[  314.180752] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  314.185610]  ? print_usage_bug+0xc0/0xc0
[  314.194415] 4984 total pagecache pages
[  314.194432] 0 pages in swap cache
[  314.198218]  ? warn_alloc+0x120/0x120
[  314.206784] Swap cache stats: add 0, delete 0, find 0/0
[  314.210841]  ? warn_alloc+0x120/0x120
[  314.214721] Free swap  = 0kB
[  314.218170]  ? print_usage_bug+0xc0/0xc0
[  314.221951] Total swap = 0kB
[  314.227310]  ? kvm_clock_read+0x18/0x30
[  314.231088] 1965979 pages RAM
[  314.234101]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  314.238134] 0 pages HighMem/MovableOnly
[  314.241148]  ? print_usage_bug+0xc0/0xc0
[  314.245096] 342853 pages reserved
[  314.248194]  ? __lock_acquire+0x62f/0x4c20
[  314.253186] 0 pages cma reserved
[  314.257158]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.261257] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  314.264642]  ? should_fail+0x22d/0xd01
[  314.268909] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  314.272210]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.277728] syz-fuzzer cpuset=/ mems_allowed=0
[  314.284224]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  314.313241]  ? __lock_acquire+0x62f/0x4c20
[  314.317511]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  314.322617]  ? __lock_acquire+0x62f/0x4c20
[  314.326852]  ? should_fail+0x22d/0xd01
[  314.330740]  ? rcu_irq_exit+0x1a2/0x390
[  314.334739]  ? mark_held_locks+0x130/0x130
[  314.338993]  ? mark_held_locks+0x130/0x130
[  314.343238]  ? mark_held_locks+0xc7/0x130
[  314.347401]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  314.352468]  ? zap_class+0x640/0x640
[  314.356196]  ? print_usage_bug+0xc0/0xc0
[  314.360273]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.365813]  ? check_preemption_disabled+0x48/0x280
[  314.370842]  ? __lock_is_held+0xb5/0x140
[  314.374930]  __alloc_pages_nodemask+0xa80/0xde0
[  314.379621]  ? zap_class+0x640/0x640
[  314.383340]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  314.388372]  ? find_held_lock+0x36/0x1c0
[  314.392449]  ? ____cache_alloc_node+0x1c7/0x1e0
[  314.397126]  ? lock_downgrade+0x900/0x900
[  314.401282]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.406832]  cache_grow_begin+0xa5/0x8c0
[  314.410898]  ? do_raw_spin_unlock+0xa7/0x330
[  314.415321]  fallback_alloc+0x204/0x2e0
[  314.419331]  ____cache_alloc_node+0x1c7/0x1e0
[  314.423868]  kmem_cache_alloc_node+0xe3/0x730
[  314.428367]  ? ipv6_get_ifaddr+0x42e/0x620
[  314.432614]  __alloc_skb+0x119/0x770
[  314.436329]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.441616]  ? netdev_alloc_frag+0x1f0/0x1f0
[  314.446027]  ? lock_downgrade+0x900/0x900
[  314.450183]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.455730]  ? refcount_sub_and_test_checked+0x203/0x310
[  314.461194]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  314.466648]  ? addrconf_rs_timer+0x690/0x690
[  314.471068]  ndisc_alloc_skb+0x144/0x340
[  314.475136]  ndisc_send_rs+0x331/0x6e0
[  314.479030]  addrconf_rs_timer+0x314/0x690
[  314.483271]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  314.487519]  call_timer_fn+0x272/0x920
[  314.491411]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  314.495647]  ? process_timeout+0x40/0x40
[  314.499719]  ? __run_timers+0x7da/0xc70
[  314.503699]  ? _raw_spin_unlock_irq+0x27/0x80
[  314.508196]  ? _raw_spin_unlock_irq+0x27/0x80
[  314.512695]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  314.516936]  ? lockdep_hardirqs_on+0x296/0x5b0
[  314.521570]  ? trace_hardirqs_on+0xbd/0x310
[  314.525922]  ? kasan_check_read+0x11/0x20
[  314.530071]  ? __run_timers+0x7da/0xc70
[  314.534045]  ? trace_hardirqs_off_caller+0x310/0x310
[  314.539162]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  314.543400]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  314.547633]  __run_timers+0x7e5/0xc70
[  314.551457]  ? timer_fixup_init+0x70/0x70
[  314.555608]  ? kasan_check_read+0x11/0x20
[  314.559760]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.565052]  ? rcu_softirq_qs+0x20/0x20
[  314.569034]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.574576]  ? check_preemption_disabled+0x48/0x280
[  314.579602]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  314.584363]  ? retint_kernel+0x2d/0x2d
[  314.588253]  ? trace_hardirqs_on_caller+0xc0/0x310
[  314.593183]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  314.597947]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  314.603405]  ? zap_class+0x640/0x640
[  314.607127]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.612668]  ? check_preemption_disabled+0x48/0x280
[  314.617695]  ? __lock_is_held+0xb5/0x140
[  314.621809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.627381]  ? check_preemption_disabled+0x48/0x280
[  314.632407]  run_timer_softirq+0x52/0xb0
[  314.636469]  ? rcu_read_lock_sched_held+0x14f/0x180
[  314.641526]  __do_softirq+0x308/0xb7e
[  314.645331]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  314.649824]  ? lock_downgrade+0x900/0x900
[  314.653977]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  314.659105]  ? pvclock_read_flags+0x160/0x160
[  314.663602]  ? lapic_next_event+0x5a/0x90
[  314.667780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.673323]  ? kvm_clock_read+0x18/0x30
[  314.677295]  ? kvm_sched_clock_read+0x9/0x20
[  314.681725]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.687262]  ? check_preemption_disabled+0x48/0x280
[  314.692289]  irq_exit+0x17f/0x1c0
[  314.695745]  smp_apic_timer_interrupt+0x1cb/0x760
[  314.700603]  ? smp_reschedule_interrupt+0x109/0x650
[  314.705620]  ? smp_call_function_single_interrupt+0x650/0x650
[  314.711538]  ? interrupt_entry+0xb5/0xc0
[  314.715604]  ? trace_hardirqs_off_caller+0xbb/0x310
[  314.720620]  ? trace_hardirqs_off_caller+0xbb/0x310
[  314.725654]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  314.730515]  ? trace_hardirqs_on_caller+0x310/0x310
[  314.735530]  ? trace_hardirqs_on_caller+0x310/0x310
[  314.740549]  ? task_prio+0x50/0x50
[  314.744093]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.749631]  ? check_preemption_disabled+0x48/0x280
[  314.754653]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  314.759505]  apic_timer_interrupt+0xf/0x20
[  314.763734]  </IRQ>
[  314.765984] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  314.770919] 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
[  314.789822] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  314.797533] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  314.804805] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  314.812072] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  314.819337] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  314.826604] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  314.833915]  skb_clone+0x1bb/0x500
[  314.837464]  ? skb_split+0x11e0/0x11e0
[  314.841356]  ? preempt_notifier_register+0x200/0x200
[  314.846459]  ? __switch_to_asm+0x34/0x70
[  314.850520]  ? __switch_to_asm+0x34/0x70
[  314.854577]  ? __switch_to_asm+0x40/0x70
[  314.858640]  ? __switch_to_asm+0x34/0x70
[  314.862715]  ? __switch_to_asm+0x40/0x70
[  314.866785]  ? __switch_to_asm+0x40/0x70
[  314.870851]  ? __switch_to_asm+0x34/0x70
[  314.874909]  ? __switch_to_asm+0x34/0x70
[  314.878970]  ? __switch_to_asm+0x40/0x70
[  314.883028]  ? __switch_to_asm+0x34/0x70
[  314.887114]  bpf_clone_redirect+0xb9/0x490
[  314.891375]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  314.896395]  ? __sched_text_start+0x8/0x8
[  314.900546]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  314.905307]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  314.910071]  ? find_held_lock+0x36/0x1c0
[  314.914140]  ? lock_acquire+0x1ed/0x520
[  314.918127]  ? bpf_test_run+0x3cb/0x780
[  314.922104]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  314.927653]  ? check_preemption_disabled+0x48/0x280
[  314.932677]  ? kasan_check_read+0x11/0x20
[  314.936826]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  314.942103]  ? rcu_softirq_qs+0x20/0x20
[  314.946087]  ? preempt_schedule+0x4d/0x60
[  314.950239]  ? ___preempt_schedule+0x16/0x18
[  314.954661]  ? bpf_test_run+0x25d/0x780
[  314.958648]  ? netlink_diag_dump+0x2a0/0x2a0
[  314.963060]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  314.968600]  ? bpf_test_init.isra.10+0x70/0x100
[  314.973275]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  314.978050]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  314.982911]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  314.988447]  ? fput+0x130/0x1a0
[  314.991732]  ? __bpf_prog_get+0x9b/0x290
[  314.995809]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  315.000651]  ? bpf_prog_test_run+0x130/0x1a0
[  315.005064]  ? __x64_sys_bpf+0x3d8/0x520
[  315.009131]  ? bpf_prog_get+0x20/0x20
[  315.012970]  ? do_syscall_64+0x1b9/0x820
[  315.017035]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  315.022402]  ? syscall_return_slowpath+0x5e0/0x5e0
[  315.027338]  ? trace_hardirqs_on_caller+0x310/0x310
[  315.032356]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  315.037391]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  315.044054]  ? __switch_to_asm+0x40/0x70
[  315.048111]  ? __switch_to_asm+0x34/0x70
[  315.052181]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  315.057035]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  315.062451] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  315.062536] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  315.069381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  315.069390] Call Trace:
[  315.075960] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  315.085213]  <IRQ>
[  315.087792] syz-executor4 cpuset=syz4 mems_allowed=0
[  315.098279]  dump_stack+0x244/0x39d
[  315.109113]  ? dump_stack_print_info.cold.1+0x20/0x20
[  315.114317]  warn_alloc.cold.116+0xb7/0x1bd
[  315.118646]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  315.123500]  ? lock_downgrade+0x900/0x900
[  315.127677]  ? trace_hardirqs_off+0xb8/0x310
[  315.132114]  ? trace_hardirqs_off+0xb8/0x310
[  315.136558]  __alloc_pages_slowpath+0x26e8/0x2e10
[  315.141447]  ? warn_alloc+0x120/0x120
[  315.145254]  ? print_usage_bug+0xc0/0xc0
[  315.149336]  ? warn_alloc+0x120/0x120
[  315.153144]  ? warn_alloc+0x120/0x120
[  315.156951]  ? print_usage_bug+0xc0/0xc0
[  315.161021]  ? print_usage_bug+0xc0/0xc0
[  315.165086]  ? __lock_acquire+0x62f/0x4c20
[  315.169330]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  315.174868]  ? should_fail+0x22d/0xd01
[  315.178769]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  315.183877]  ? __lock_acquire+0x62f/0x4c20
[  315.188117]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  315.193220]  ? __lock_acquire+0x62f/0x4c20
[  315.197454]  ? should_fail+0x22d/0xd01
[  315.201347]  ? find_held_lock+0x36/0x1c0
[  315.205416]  ? mark_held_locks+0x130/0x130
[  315.209663]  ? mark_held_locks+0x130/0x130
[  315.213898]  ? zap_class+0x640/0x640
[  315.217614]  ? zap_class+0x640/0x640
[  315.221331]  ? print_usage_bug+0xc0/0xc0
[  315.225390]  ? do_raw_spin_unlock+0xa7/0x330
[  315.229805]  ? zap_class+0x640/0x640
[  315.233519]  ? print_usage_bug+0xc0/0xc0
[  315.237594]  ? wq_watchdog_touch+0x9c/0xfe
[  315.241852]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.247398]  ? check_preemption_disabled+0x48/0x280
[  315.252425]  ? __lock_is_held+0xb5/0x140
[  315.256491]  __alloc_pages_nodemask+0xa80/0xde0
[  315.261160]  ? zap_class+0x640/0x640
[  315.264880]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  315.269908]  ? find_held_lock+0x36/0x1c0
[  315.273987]  ? ____cache_alloc_node+0x1c7/0x1e0
[  315.278663]  ? lock_downgrade+0x900/0x900
[  315.282823]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.288366]  cache_grow_begin+0xa5/0x8c0
[  315.292428]  ? do_raw_spin_unlock+0xa7/0x330
[  315.296848]  fallback_alloc+0x204/0x2e0
[  315.300839]  ____cache_alloc_node+0x1c7/0x1e0
[  315.305341]  kmem_cache_alloc_node+0xe3/0x730
[  315.309841]  ? ipv6_get_ifaddr+0x42e/0x620
[  315.314089]  __alloc_skb+0x119/0x770
[  315.317804]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.323086]  ? netdev_alloc_frag+0x1f0/0x1f0
[  315.327497]  ? lock_downgrade+0x900/0x900
[  315.331656]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.337199]  ? refcount_sub_and_test_checked+0x203/0x310
[  315.342654]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  315.348109]  ? addrconf_rs_timer+0x690/0x690
[  315.352535]  ndisc_alloc_skb+0x144/0x340
[  315.356603]  ndisc_send_rs+0x331/0x6e0
[  315.360498]  addrconf_rs_timer+0x314/0x690
[  315.364739]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.369007]  call_timer_fn+0x272/0x920
[  315.372898]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.377135]  ? process_timeout+0x40/0x40
[  315.381207]  ? mark_held_locks+0xc7/0x130
[  315.385358]  ? _raw_spin_unlock_irq+0x27/0x80
[  315.389851]  ? _raw_spin_unlock_irq+0x27/0x80
[  315.394345]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.398580]  ? lockdep_hardirqs_on+0x296/0x5b0
[  315.403168]  ? trace_hardirqs_on+0xbd/0x310
[  315.407496]  ? kasan_check_read+0x11/0x20
[  315.411646]  ? __run_timers+0x7da/0xc70
[  315.415631]  ? trace_hardirqs_off_caller+0x310/0x310
[  315.420743]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.424990]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  315.429259]  __run_timers+0x7e5/0xc70
[  315.433089]  ? timer_fixup_init+0x70/0x70
[  315.437244]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  315.442291]  ? zap_class+0x640/0x640
[  315.446011]  ? print_usage_bug+0xc0/0xc0
[  315.450076]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  315.455313]  ? find_held_lock+0x36/0x1c0
[  315.459401]  ? zap_class+0x640/0x640
[  315.463138]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.468683]  ? check_preemption_disabled+0x48/0x280
[  315.473710]  ? __lock_is_held+0xb5/0x140
[  315.477809]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.483352]  ? check_preemption_disabled+0x48/0x280
[  315.488388]  run_timer_softirq+0x52/0xb0
[  315.492455]  ? rcu_read_lock_sched_held+0x14f/0x180
[  315.497507]  __do_softirq+0x308/0xb7e
[  315.501328]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  315.505838]  ? lock_downgrade+0x900/0x900
[  315.509991]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  315.515102]  ? pvclock_read_flags+0x160/0x160
[  315.519605]  ? lapic_next_event+0x5a/0x90
[  315.523769]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.529349]  ? kvm_clock_read+0x18/0x30
[  315.533358]  ? kvm_sched_clock_read+0x9/0x20
[  315.537780]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.543335]  ? check_preemption_disabled+0x48/0x280
[  315.548413]  irq_exit+0x17f/0x1c0
[  315.551898]  smp_apic_timer_interrupt+0x1cb/0x760
[  315.556743]  ? smp_reschedule_interrupt+0x109/0x650
[  315.561804]  ? smp_call_function_single_interrupt+0x650/0x650
[  315.567698]  ? interrupt_entry+0xb5/0xc0
[  315.571800]  ? trace_hardirqs_off_caller+0xbb/0x310
[  315.576820]  ? trace_hardirqs_off_caller+0xbb/0x310
[  315.581838]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  315.586683]  ? trace_hardirqs_on_caller+0x310/0x310
[  315.591701]  ? trace_hardirqs_on_caller+0x310/0x310
[  315.596718]  ? task_prio+0x50/0x50
[  315.600262]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.605809]  ? check_preemption_disabled+0x48/0x280
[  315.610836]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  315.615701]  apic_timer_interrupt+0xf/0x20
[  315.619932]  </IRQ>
[  315.622179] RIP: 0010:check_memory_region+0x121/0x1b0
[  315.627387] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  315.646307] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  315.654013] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  315.661297] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  315.668563] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  315.675829] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  315.683098] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  315.690385]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.695675]  kasan_check_read+0x11/0x20
[  315.699663]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  315.704772]  ? rcu_softirq_qs+0x20/0x20
[  315.708758]  rcu_is_watching+0x10/0x30
[  315.712660]  list_lru_count_one+0x362/0x450
[  315.716983]  ? list_lru_isolate_move+0x3c0/0x3c0
[  315.721738]  ? shmem_free_inode+0xd0/0xd0
[  315.725929]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  315.731469]  ? ubifs_shrink_count+0xc4/0x100
[  315.735886]  super_cache_count+0x153/0x2e0
[  315.740126]  do_shrink_slab+0x1b1/0xd30
[  315.744107]  ? lock_acquire+0x1ed/0x520
[  315.748086]  ? snapshot_refaults+0x290/0x290
[  315.752544]  ? lock_release+0xa00/0xa00
[  315.756528]  ? perf_trace_sched_process_exec+0x860/0x860
[  315.761992]  ? down_read_trylock+0xda/0x140
[  315.766319]  ? shrink_slab+0x207/0x8c0
[  315.770208]  ? downgrade_write+0x270/0x270
[  315.774455]  shrink_slab+0x389/0x8c0
[  315.778170]  ? shrink_active_list+0x1f00/0x1f00
[  315.782865]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  315.788516]  ? kasan_check_read+0x11/0x20
[  315.792679]  ? do_raw_spin_unlock+0xa7/0x330
[  315.797094]  ? ___preempt_schedule+0x16/0x18
[  315.801519]  ? _raw_spin_unlock+0x3f/0x50
[  315.805674]  shrink_node+0x431/0x16b0
[  315.809476]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  315.814927]  ? shrink_node_memcg+0x18f0/0x18f0
[  315.819513]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  315.824102]  ? trace_hardirqs_on+0xbd/0x310
[  315.828426]  ? vmpressure+0x271/0x340
[  315.832234]  ? do_raw_spin_trylock+0x270/0x270
[  315.836829]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  315.842397]  ? __cpuset_node_allowed+0x19b/0x660
[  315.847161]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  315.852877]  ? vmpressure+0x1a2/0x340
[  315.856697]  do_try_to_free_pages+0x3e7/0x1290
[  315.861285]  ? zap_class+0x640/0x640
[  315.865015]  ? shrink_node+0x16b0/0x16b0
[  315.869081]  ? __lock_is_held+0xb5/0x140
[  315.873157]  try_to_free_pages+0x4d0/0xb90
[  315.877401]  ? do_try_to_free_pages+0x1290/0x1290
[  315.882262]  ? lock_acquire+0x1ed/0x520
[  315.886246]  ? set_page_refcounted+0x280/0x280
[  315.891283]  ? lock_release+0xa00/0xa00
[  315.895261]  ? _raw_spin_unlock_irq+0x60/0x80
[  315.899776]  ? psi_memstall_enter+0x240/0x2b0
[  315.904291]  ? psi_memstall_tick+0x230/0x230
[  315.908715]  __alloc_pages_slowpath+0xa14/0x2e10
[  315.913504]  ? warn_alloc+0x120/0x120
[  315.917311]  ? mark_held_locks+0x130/0x130
[  315.921555]  ? find_get_entry+0xaae/0x1120
[  315.925806]  ? filemap_map_pages+0x1a20/0x1a20
[  315.930400]  ? zap_class+0x640/0x640
[  315.934121]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  315.939662]  ? check_preemption_disabled+0x48/0x280
[  315.944687]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  315.950229]  ? should_fail+0x22d/0xd01
[  315.954126]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  315.959240]  ? zap_class+0x640/0x640
[  315.962988]  ? __lock_is_held+0xb5/0x140
[  315.967060]  ? mark_held_locks+0x130/0x130
[  315.971301]  ? lock_release+0xa00/0xa00
[  315.975279]  ? perf_trace_sched_process_exec+0x860/0x860
[  315.980736]  ? xa_load+0x2ba/0x460
[  315.984296]  ? lock_downgrade+0x900/0x900
[  315.988449]  ? __might_sleep+0x95/0x190
[  315.992436]  __alloc_pages_nodemask+0xa80/0xde0
[  315.997119]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  316.002141]  ? __page_cache_alloc+0x191/0x5c0
[  316.006634]  ? xa_load+0x2e1/0x460
[  316.010181]  ? xa_clear_mark+0x40/0x40
[  316.014070]  ? zap_class+0x640/0x640
[  316.017804]  ? zap_class+0x640/0x640
[  316.021525]  ? zap_class+0x640/0x640
[  316.025241]  ? __do_page_cache_readahead+0x663/0x810
[  316.030354]  ? find_held_lock+0x36/0x1c0
[  316.034425]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  316.039990]  alloc_pages_current+0x173/0x350
[  316.044409]  __page_cache_alloc+0x38c/0x5c0
[  316.048732]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  316.053699]  ? kasan_check_read+0x11/0x20
[  316.057861]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.063168]  ? generic_perform_write+0x6a0/0x6a0
[  316.067939]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.073491]  ? check_preemption_disabled+0x48/0x280
[  316.078515]  filemap_fault+0x1595/0x25f0
[  316.082592]  ? __lock_page_or_retry+0xa00/0xa00
[  316.087267]  ? mark_held_locks+0x130/0x130
[  316.091522]  ? filemap_map_pages+0xd6b/0x1a20
[  316.096018]  ? lock_downgrade+0x900/0x900
[  316.100167]  ? check_preemption_disabled+0x48/0x280
[  316.105189]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  316.110121]  ? kasan_check_read+0x11/0x20
[  316.114267]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.119549]  ? rcu_softirq_qs+0x20/0x20
[  316.123541]  ? filemap_map_pages+0xd92/0x1a20
[  316.128055]  ? find_get_entries_tag+0x1400/0x1400
[  316.132911]  ? find_held_lock+0x36/0x1c0
[  316.136998]  ? lock_acquire+0x1ed/0x520
[  316.140973]  ? ext4_filemap_fault+0x7a/0xad
[  316.145338]  ? lock_release+0xa00/0xa00
[  316.149337]  ? perf_trace_sched_process_exec+0x860/0x860
[  316.154801]  ? print_usage_bug+0xc0/0xc0
[  316.158893]  ? down_read+0x8d/0x120
[  316.162522]  ? ext4_filemap_fault+0x7a/0xad
[  316.166845]  ? __down_interruptible+0x700/0x700
[  316.171517]  ? find_held_lock+0x36/0x1c0
[  316.175582]  ext4_filemap_fault+0x82/0xad
[  316.179732]  __do_fault+0x100/0x6b0
[  316.183382]  ? lock_downgrade+0x900/0x900
[  316.187563]  ? pmd_devmap_trans_unstable+0x220/0x220
[  316.192675]  ? kasan_check_read+0x11/0x20
[  316.196825]  ? do_raw_spin_unlock+0xa7/0x330
[  316.201239]  ? do_raw_spin_trylock+0x270/0x270
[  316.205843]  __handle_mm_fault+0x3ea0/0x5be0
[  316.210266]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  316.215158]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  316.219761]  ? zap_class+0x640/0x640
[  316.223489]  ? zap_class+0x640/0x640
[  316.227205]  ? __x64_sys_futex+0x53e/0x6a0
[  316.231448]  ? find_held_lock+0x36/0x1c0
[  316.235523]  ? handle_mm_fault+0x42a/0xc70
[  316.239761]  ? lock_downgrade+0x900/0x900
[  316.243921]  ? check_preemption_disabled+0x48/0x280
[  316.248941]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  316.253885]  ? kasan_check_read+0x11/0x20
[  316.258036]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.263333]  ? rcu_softirq_qs+0x20/0x20
[  316.267355]  ? trace_hardirqs_off_caller+0x310/0x310
[  316.272465]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.278006]  ? check_preemption_disabled+0x48/0x280
[  316.283037]  handle_mm_fault+0x54f/0xc70
[  316.287104]  ? __handle_mm_fault+0x5be0/0x5be0
[  316.291692]  ? find_vma+0x34/0x190
[  316.295241]  __do_page_fault+0x5e8/0xe60
[  316.299308]  ? trace_hardirqs_off+0xb8/0x310
[  316.303726]  do_page_fault+0xf2/0x7e0
[  316.307533]  ? vmalloc_sync_all+0x30/0x30
[  316.311682]  ? error_entry+0x70/0xd0
[  316.315400]  ? trace_hardirqs_off_caller+0xbb/0x310
[  316.320435]  ? trace_hardirqs_on_caller+0xc0/0x310
[  316.325370]  ? syscall_return_slowpath+0x5e0/0x5e0
[  316.330314]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  316.335175]  ? trace_hardirqs_on_caller+0x310/0x310
[  316.340196]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  316.345658]  ? prepare_exit_to_usermode+0x291/0x3b0
[  316.350674]  ? page_fault+0x8/0x30
[  316.354219]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  316.359065]  ? page_fault+0x8/0x30
[  316.362607]  page_fault+0x1e/0x30
[  316.366061] RIP: 0033:0x404068
[  316.369323] Code: Bad RIP value.
[  316.372699] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  316.378085] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  316.385355] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  316.392621] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  316.399889] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  316.407158] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  316.414449] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  316.414454] warn_alloc_show_mem: 1 callbacks suppressed
[  316.414461] Mem-Info:
[  316.421737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  316.427104] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  316.427104]  active_file:13 inactive_file:28 isolated_file:0
[  316.427104]  unevictable:0 dirty:1 writeback:0 unstable:0
[  316.427104]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  316.427104]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  316.427104]  free:13541 free_pcp:161 free_cma:0
[  316.429478] Call Trace:
[  316.438878] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  316.471884]  <IRQ>
[  316.474473] 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
[  316.502411]  dump_stack+0x244/0x39d
[  316.504545] lowmem_reserve[]: 0 2818 6321 6321
[  316.530649]  ? dump_stack_print_info.cold.1+0x20/0x20
[  316.534254] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  316.538839]  warn_alloc.cold.116+0xb7/0x1bd
[  316.543998] lowmem_reserve[]: 0 0 3503 3503
[  316.571598]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  316.575894] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  316.580209]  ? lock_downgrade+0x900/0x900
[  316.585027] lowmem_reserve[]: 0 0 0 0
[  316.614173]  ? trace_hardirqs_off+0xb8/0x310
[  316.618294] 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
[  316.622088]  ? trace_hardirqs_off+0xb8/0x310
[  316.626469] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  316.639988]  __alloc_pages_slowpath+0x26e8/0x2e10
[  316.644373] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  316.659580]  ? warn_alloc+0x120/0x120
[  316.664382] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  316.678848]  ? print_usage_bug+0xc0/0xc0
[  316.682627] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  316.691448]  ? warn_alloc+0x120/0x120
[  316.695491] 4984 total pagecache pages
[  316.704061]  ? warn_alloc+0x120/0x120
[  316.707851] 0 pages in swap cache
[  316.711726]  ? print_usage_bug+0xc0/0xc0
[  316.715506] Swap cache stats: add 0, delete 0, find 0/0
[  316.718950]  ? kvm_clock_read+0x18/0x30
[  316.722991] Free swap  = 0kB
[  316.728382]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  316.732333] Total swap = 0kB
[  316.735348]  ? print_usage_bug+0xc0/0xc0
[  316.740343] 1965979 pages RAM
[  316.743373]  ? __lock_acquire+0x62f/0x4c20
[  316.747412] 0 pages HighMem/MovableOnly
[  316.750512]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  316.754725] 342853 pages reserved
[  316.758697]  ? should_fail+0x22d/0xd01
[  316.764210] 0 pages cma reserved
[  316.767656]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.771583] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  316.774881]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  316.780222] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  316.786625]  ? __lock_acquire+0x62f/0x4c20
[  316.791706] syz-fuzzer cpuset=/ mems_allowed=0
[  316.801929]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  316.815827]  ? __lock_acquire+0x62f/0x4c20
[  316.820064]  ? should_fail+0x22d/0xd01
[  316.823983]  ? rcu_irq_exit+0x1a2/0x390
[  316.827967]  ? mark_held_locks+0x130/0x130
[  316.832206]  ? mark_held_locks+0x130/0x130
[  316.836447]  ? mark_held_locks+0xc7/0x130
[  316.840611]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  316.845630]  ? zap_class+0x640/0x640
[  316.849346]  ? print_usage_bug+0xc0/0xc0
[  316.853417]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.858960]  ? check_preemption_disabled+0x48/0x280
[  316.863990]  ? __lock_is_held+0xb5/0x140
[  316.868060]  __alloc_pages_nodemask+0xa80/0xde0
[  316.872731]  ? zap_class+0x640/0x640
[  316.876460]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  316.881494]  ? find_held_lock+0x36/0x1c0
[  316.885567]  ? ____cache_alloc_node+0x1c7/0x1e0
[  316.890237]  ? lock_downgrade+0x900/0x900
[  316.894407]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.899966]  cache_grow_begin+0xa5/0x8c0
[  316.904031]  ? do_raw_spin_unlock+0xa7/0x330
[  316.908447]  fallback_alloc+0x204/0x2e0
[  316.912431]  ____cache_alloc_node+0x1c7/0x1e0
[  316.916932]  kmem_cache_alloc_node+0xe3/0x730
[  316.921428]  ? ipv6_get_ifaddr+0x42e/0x620
[  316.925690]  __alloc_skb+0x119/0x770
[  316.929421]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  316.934704]  ? netdev_alloc_frag+0x1f0/0x1f0
[  316.939114]  ? lock_downgrade+0x900/0x900
[  316.943278]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  316.948983]  ? refcount_sub_and_test_checked+0x203/0x310
[  316.954440]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  316.959895]  ? addrconf_rs_timer+0x690/0x690
[  316.964349]  ndisc_alloc_skb+0x144/0x340
[  316.968434]  ndisc_send_rs+0x331/0x6e0
[  316.972353]  addrconf_rs_timer+0x314/0x690
[  316.976611]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.980858]  call_timer_fn+0x272/0x920
[  316.984747]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  316.988996]  ? process_timeout+0x40/0x40
[  316.993066]  ? __run_timers+0x7da/0xc70
[  316.997043]  ? _raw_spin_unlock_irq+0x27/0x80
[  317.001541]  ? _raw_spin_unlock_irq+0x27/0x80
[  317.006034]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  317.010270]  ? lockdep_hardirqs_on+0x296/0x5b0
[  317.014856]  ? trace_hardirqs_on+0xbd/0x310
[  317.019182]  ? kasan_check_read+0x11/0x20
[  317.023349]  ? __run_timers+0x7da/0xc70
[  317.027326]  ? trace_hardirqs_off_caller+0x310/0x310
[  317.032433]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  317.036679]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  317.040911]  __run_timers+0x7e5/0xc70
[  317.044724]  ? timer_fixup_init+0x70/0x70
[  317.048888]  ? kasan_check_read+0x11/0x20
[  317.053046]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.058327]  ? rcu_softirq_qs+0x20/0x20
[  317.062312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.067856]  ? check_preemption_disabled+0x48/0x280
[  317.072884]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  317.077643]  ? retint_kernel+0x2d/0x2d
[  317.081534]  ? trace_hardirqs_on_caller+0xc0/0x310
[  317.086472]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  317.091236]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  317.096688]  ? zap_class+0x640/0x640
[  317.100411]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.105952]  ? check_preemption_disabled+0x48/0x280
[  317.110983]  ? __lock_is_held+0xb5/0x140
[  317.115047]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.120590]  ? check_preemption_disabled+0x48/0x280
[  317.125612]  run_timer_softirq+0x52/0xb0
[  317.129674]  ? rcu_read_lock_sched_held+0x14f/0x180
[  317.134691]  __do_softirq+0x308/0xb7e
[  317.138529]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  317.143026]  ? lock_downgrade+0x900/0x900
[  317.147181]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  317.152296]  ? pvclock_read_flags+0x160/0x160
[  317.156810]  ? lapic_next_event+0x5a/0x90
[  317.160968]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.166516]  ? kvm_clock_read+0x18/0x30
[  317.170493]  ? kvm_sched_clock_read+0x9/0x20
[  317.174909]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.180455]  ? check_preemption_disabled+0x48/0x280
[  317.185480]  irq_exit+0x17f/0x1c0
[  317.188937]  smp_apic_timer_interrupt+0x1cb/0x760
[  317.193792]  ? smp_reschedule_interrupt+0x109/0x650
[  317.198835]  ? smp_call_function_single_interrupt+0x650/0x650
[  317.204722]  ? interrupt_entry+0xb5/0xc0
[  317.208800]  ? trace_hardirqs_off_caller+0xbb/0x310
[  317.213820]  ? trace_hardirqs_off_caller+0xbb/0x310
[  317.218837]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  317.223689]  ? trace_hardirqs_on_caller+0x310/0x310
[  317.228712]  ? trace_hardirqs_on_caller+0x310/0x310
[  317.233729]  ? task_prio+0x50/0x50
[  317.237310]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.242852]  ? check_preemption_disabled+0x48/0x280
[  317.247878]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  317.252737]  apic_timer_interrupt+0xf/0x20
[  317.256982]  </IRQ>
[  317.259229] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  317.264163] 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
[  317.283066] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  317.290788] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  317.298058] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  317.305325] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  317.312591] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  317.319863] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  317.327178]  skb_clone+0x1bb/0x500
[  317.330722]  ? skb_split+0x11e0/0x11e0
[  317.334620]  ? preempt_notifier_register+0x200/0x200
[  317.339723]  ? __switch_to_asm+0x34/0x70
[  317.343796]  ? __switch_to_asm+0x34/0x70
[  317.347859]  ? __switch_to_asm+0x40/0x70
[  317.351920]  ? __switch_to_asm+0x34/0x70
[  317.355981]  ? __switch_to_asm+0x40/0x70
[  317.360051]  ? __switch_to_asm+0x40/0x70
[  317.364115]  ? __switch_to_asm+0x34/0x70
[  317.368173]  ? __switch_to_asm+0x34/0x70
[  317.372231]  ? __switch_to_asm+0x40/0x70
[  317.376293]  ? __switch_to_asm+0x34/0x70
[  317.380370]  bpf_clone_redirect+0xb9/0x490
[  317.384625]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  317.389648]  ? __sched_text_start+0x8/0x8
[  317.393805]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  317.398568]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  317.403331]  ? find_held_lock+0x36/0x1c0
[  317.407400]  ? lock_acquire+0x1ed/0x520
[  317.411374]  ? bpf_test_run+0x3cb/0x780
[  317.415352]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.420898]  ? check_preemption_disabled+0x48/0x280
[  317.425926]  ? kasan_check_read+0x11/0x20
[  317.430074]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.435355]  ? rcu_softirq_qs+0x20/0x20
[  317.439334]  ? preempt_schedule+0x4d/0x60
[  317.443484]  ? ___preempt_schedule+0x16/0x18
[  317.447906]  ? bpf_test_run+0x25d/0x780
[  317.451901]  ? netlink_diag_dump+0x2a0/0x2a0
[  317.456330]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.461903]  ? bpf_test_init.isra.10+0x70/0x100
[  317.466582]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  317.471365]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  317.476209]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  317.481747]  ? fput+0x130/0x1a0
[  317.485043]  ? __bpf_prog_get+0x9b/0x290
[  317.489108]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  317.493952]  ? bpf_prog_test_run+0x130/0x1a0
[  317.498384]  ? __x64_sys_bpf+0x3d8/0x520
[  317.502448]  ? bpf_prog_get+0x20/0x20
[  317.506273]  ? do_syscall_64+0x1b9/0x820
[  317.510335]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  317.515748]  ? syscall_return_slowpath+0x5e0/0x5e0
[  317.520698]  ? trace_hardirqs_on_caller+0x310/0x310
[  317.525772]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  317.530814]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  317.537479]  ? __switch_to_asm+0x40/0x70
[  317.541537]  ? __switch_to_asm+0x34/0x70
[  317.545609]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  317.550462]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  317.555875] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  317.555907] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[  317.562807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  317.562815] Call Trace:
[  317.569036] rcu: 	(detected by 0, t=10741 jiffies, g=17693, q=2)
[  317.578396]  <IRQ>
[  317.580974] rcu: All QSes seen, last rcu_preempt kthread activity 10735 (4294968901-4294958166), jiffies_till_next_fqs=1, root ->qsmask 0x0
[  317.587102]  dump_stack+0x244/0x39d
[  317.589247] syz-executor4   R  running task    20712 10267   6159 0x8010000c
[  317.601916]  ? dump_stack_print_info.cold.1+0x20/0x20
[  317.605520] Call Trace:
[  317.612706]  warn_alloc.cold.116+0xb7/0x1bd
[  317.617868]  <IRQ>
[  317.620451]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  317.624803]  sched_show_task.cold.84+0x2b6/0x30a
[  317.626930]  ? lock_downgrade+0x900/0x900
[  317.631756]  ? can_nice.part.74+0x20/0x20
[  317.636513]  ? trace_hardirqs_off+0xb8/0x310
[  317.640644]  ? vprintk_default+0x28/0x30
[  317.644817]  ? trace_hardirqs_off+0xb8/0x310
[  317.649209]  ? vprintk_func+0x85/0x181
[  317.653260]  __alloc_pages_slowpath+0x26e8/0x2e10
[  317.657647]  ? vprintk_func+0x85/0x181
[  317.661544]  ? warn_alloc+0x120/0x120
[  317.666354]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  317.670243]  ? print_usage_bug+0xc0/0xc0
[  317.674047]  ? kmsg_dump_rewind_nolock+0xe4/0xe4
[  317.678807]  ? warn_alloc+0x120/0x120
[  317.682882]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.687618]  ? warn_alloc+0x120/0x120
[  317.691420]  print_other_cpu_stall.cold.66+0x7dd/0x8bb
[  317.696940]  ? print_usage_bug+0xc0/0xc0
[  317.700726]  ? print_usage_bug+0xc0/0xc0
[  317.705992]  ? kvm_clock_read+0x18/0x30
[  317.710039]  ? rcu_qs+0x110/0x110
[  317.714089]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  317.718061]  ? zap_class+0x640/0x640
[  317.721501]  ? print_usage_bug+0xc0/0xc0
[  317.726501]  ? print_usage_bug+0xc0/0xc0
[  317.730203]  ? __lock_acquire+0x62f/0x4c20
[  317.734253]  ? kasan_check_read+0x11/0x20
[  317.738303]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  317.742524]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.746655]  ? should_fail+0x22d/0xd01
[  317.752179]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.757699]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  317.761570]  ? do_trace_rcu_torture_read+0x10/0x10
[  317.767090]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  317.772381]  ? rcu_preempt_need_deferred_qs+0x74/0x1f0
[  317.777298]  ? __lock_acquire+0x62f/0x4c20
[  317.782383]  ? __lock_is_held+0xb5/0x140
[  317.787658]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  317.791882]  ? __rcu_read_lock+0x50/0x50
[  317.795926]  ? __lock_acquire+0x62f/0x4c20
[  317.801017]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.805060]  ? should_fail+0x22d/0xd01
[  317.809284]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.814979]  ? rcu_irq_exit+0x1a2/0x390
[  317.815002]  ? mark_held_locks+0x130/0x130
[  317.818892]  ? check_preemption_disabled+0x48/0x280
[  317.824429]  ? mark_held_locks+0x130/0x130
[  317.828388]  rcu_check_callbacks+0xfd7/0x13f0
[  317.832610]  ? mark_held_locks+0xc7/0x130
[  317.837614]  ? rcutree_dead_cpu+0x10/0x10
[  317.841840]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  317.846328]  ? lock_downgrade+0x900/0x900
[  317.850458]  ? zap_class+0x640/0x640
[  317.854590]  ? lock_release+0x930/0xa00
[  317.859591]  ? print_usage_bug+0xc0/0xc0
[  317.863731]  ? zap_class+0x640/0x640
[  317.867429]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.871384]  ? mark_held_locks+0x130/0x130
[  317.875435]  ? check_preemption_disabled+0x48/0x280
[  317.879147]  ? zap_class+0x640/0x640
[  317.884677]  ? __lock_is_held+0xb5/0x140
[  317.888897]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.893901]  __alloc_pages_nodemask+0xa80/0xde0
[  317.897603]  ? pvclock_gtod_notify+0x2e3/0x3e0
[  317.901657]  ? zap_class+0x640/0x640
[  317.907186]  ? kvm_set_tsc_khz+0x540/0x540
[  317.911854]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  317.916439]  ? warn_alloc.cold.116+0xd1/0x1bd
[  317.920144]  ? find_held_lock+0x36/0x1c0
[  317.924375]  ? find_held_lock+0x36/0x1c0
[  317.929379]  ? ____cache_alloc_node+0x1c7/0x1e0
[  317.933859]  ? zap_class+0x640/0x640
[  317.937902]  ? lock_downgrade+0x900/0x900
[  317.941953]  ? timekeeping_advance+0x3cc/0xc00
[  317.946607]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.950305]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  317.954442]  cache_grow_begin+0xa5/0x8c0
[  317.959009]  ? check_preemption_disabled+0x48/0x280
[  317.964528]  ? do_raw_spin_unlock+0xa7/0x330
[  317.970058]  ? trace_hardirqs_off+0xb8/0x310
[  317.974118]  fallback_alloc+0x204/0x2e0
[  317.979118]  ? __lock_is_held+0xb5/0x140
[  317.983514]  ____cache_alloc_node+0x1c7/0x1e0
[  317.987904]  ? trace_hardirqs_on+0x310/0x310
[  317.991869]  kmem_cache_alloc_node+0xe3/0x730
[  317.995914]  ? check_preemption_disabled+0x48/0x280
[  318.000395]  ? ipv6_get_ifaddr+0x42e/0x620
[  318.004798]  ? raise_softirq+0x199/0x420
[  318.009284]  __alloc_skb+0x119/0x770
[  318.014305]  ? raise_softirq_irqoff+0x2e0/0x2e0
[  318.018526]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.022574]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.026280]  ? netdev_alloc_frag+0x1f0/0x1f0
[  318.030946]  ? check_preemption_disabled+0x48/0x280
[  318.036206]  ? lock_downgrade+0x900/0x900
[  318.041727]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  318.046125]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.051122]  ? hrtimer_run_queues+0x9a/0x400
[  318.055263]  ? refcount_sub_and_test_checked+0x203/0x310
[  318.060825]  ? run_local_timers+0x19b/0x230
[  318.066350]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  318.070744]  ? timer_clear_idle+0x90/0x90
[  318.076177]  ? addrconf_rs_timer+0x690/0x690
[  318.080484]  ? debug_smp_processor_id+0x1c/0x20
[  318.085923]  ndisc_alloc_skb+0x144/0x340
[  318.090057]  ? irqtime_account_process_tick.isra.6+0x114/0x490
[  318.094445]  ndisc_send_rs+0x331/0x6e0
[  318.099116]  ? account_process_tick+0x282/0x350
[  318.103161]  addrconf_rs_timer+0x314/0x690
[  318.109136]  update_process_times+0x2d/0x70
[  318.113009]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.117680]  tick_sched_handle+0x9f/0x180
[  318.121902]  call_timer_fn+0x272/0x920
[  318.126206]  tick_sched_timer+0x45/0x130
[  318.130425]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.134589]  __hrtimer_run_queues+0x41c/0x10d0
[  318.138459]  ? process_timeout+0x40/0x40
[  318.142537]  ? tick_sched_do_timer+0x1a0/0x1a0
[  318.146759]  ? mark_held_locks+0xc7/0x130
[  318.151329]  ? hrtimer_start_range_ns+0xe00/0xe00
[  318.155376]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.159945]  ? pvclock_read_flags+0x160/0x160
[  318.164071]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.168899]  ? trace_hardirqs_on+0x310/0x310
[  318.173384]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.177867]  ? kvm_clock_read+0x18/0x30
[  318.182345]  ? lockdep_hardirqs_on+0x296/0x5b0
[  318.186736]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  318.190982]  ? trace_hardirqs_on+0xbd/0x310
[  318.194952]  ? ktime_get_update_offsets_now+0x3b3/0x540
[  318.199552]  ? kasan_check_read+0x11/0x20
[  318.204553]  ? do_timer+0x50/0x50
[  318.208876]  ? __run_timers+0x7da/0xc70
[  318.214223]  ? rwlock_bug.part.2+0x90/0x90
[  318.218356]  ? trace_hardirqs_off_caller+0x310/0x310
[  318.221803]  ? trace_hardirqs_on+0x310/0x310
[  318.225794]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.230026]  ? rcu_softirq_qs+0x20/0x20
[  318.235115]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.239515]  hrtimer_interrupt+0x313/0x780
[  318.243725]  __run_timers+0x7e5/0xc70
[  318.247697]  smp_apic_timer_interrupt+0x1a1/0x760
[  318.251926]  ? timer_fixup_init+0x70/0x70
[  318.256145]  ? smp_call_function_single_interrupt+0x650/0x650
[  318.259939]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  318.264774]  ? interrupt_entry+0xb5/0xc0
[  318.268907]  ? zap_class+0x640/0x640
[  318.274788]  ? trace_hardirqs_off_caller+0xbb/0x310
[  318.279794]  ? print_usage_bug+0xc0/0xc0
[  318.283840]  ? ____cache_alloc_node+0x1c7/0x1e0
[  318.287557]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  318.292564]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.296613]  ? find_held_lock+0x36/0x1c0
[  318.301267]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.306444]  ? zap_class+0x640/0x640
[  318.311291]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.315334]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.320335]  apic_timer_interrupt+0xf/0x20
[  318.324034]  ? check_preemption_disabled+0x48/0x280
[  318.328887] RIP: 0010:kmem_cache_alloc_node+0x247/0x730
[  318.334414]  ? __lock_is_held+0xb5/0x140
[  318.338627] 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
[  318.343628]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.348968] RSP: 0000:ffff8801dae07450 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  318.353021]  ? check_preemption_disabled+0x48/0x280
[  318.371903] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 1ffff10036c57151
[  318.377445]  run_timer_softirq+0x52/0xb0
[  318.385136] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000286
[  318.390144]  ? rcu_read_lock_sched_held+0x14f/0x180
[  318.397393] RBP: ffff8801dae074c0 R08: ffff8801b62b8a88 R09: 0000000000000002
[  318.401446]  __do_softirq+0x308/0xb7e
[  318.408715] R10: 0000000000000000 R11: ffff8801b62b81c0 R12: ffff8801d9a1c0c0
[  318.413722]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  318.420980] R13: ffff8801d9a1c0c0 R14: 0000000000000000 R15: 0000000000000286
[  318.424794]  ? lock_downgrade+0x900/0x900
[  318.432060]  ? apic_timer_interrupt+0xa/0x20
[  318.436542]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  318.443821]  ? ipv6_get_ifaddr+0x42e/0x620
[  318.447974]  ? pvclock_read_flags+0x160/0x160
[  318.452369]  __alloc_skb+0x119/0x770
[  318.457451]  ? lapic_next_event+0x5a/0x90
[  318.461671]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.466170]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.469872]  ? netdev_alloc_frag+0x1f0/0x1f0
[  318.474006]  ? kvm_clock_read+0x18/0x30
[  318.479284]  ? lock_downgrade+0x900/0x900
[  318.484813]  ? kvm_sched_clock_read+0x9/0x20
[  318.489297]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.493260]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.497391]  ? refcount_sub_and_test_checked+0x203/0x310
[  318.501797]  ? check_preemption_disabled+0x48/0x280
[  318.507337]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  318.512861]  irq_exit+0x17f/0x1c0
[  318.518296]  ? addrconf_rs_timer+0x690/0x690
[  318.523307]  smp_apic_timer_interrupt+0x1cb/0x760
[  318.528752]  ndisc_alloc_skb+0x144/0x340
[  318.532186]  ? smp_reschedule_interrupt+0x109/0x650
[  318.536580]  ndisc_send_rs+0x331/0x6e0
[  318.541408]  ? smp_call_function_single_interrupt+0x650/0x650
[  318.545507]  addrconf_rs_timer+0x314/0x690
[  318.550503]  ? interrupt_entry+0xb5/0xc0
[  318.554382]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.560250]  ? trace_hardirqs_off_caller+0xbb/0x310
[  318.564477]  call_timer_fn+0x272/0x920
[  318.568523]  ? trace_hardirqs_off_caller+0xbb/0x310
[  318.572744]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.577748]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.581618]  ? process_timeout+0x40/0x40
[  318.586620]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.590843]  ? __run_timers+0x7da/0xc70
[  318.595667]  ? trace_hardirqs_on_caller+0x310/0x310
[  318.599714]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.604713]  ? task_prio+0x50/0x50
[  318.608670]  ? _raw_spin_unlock_irq+0x27/0x80
[  318.613676]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.618156]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.621682]  ? check_preemption_disabled+0x48/0x280
[  318.626160]  ? lockdep_hardirqs_on+0x296/0x5b0
[  318.631714]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  318.635936]  ? trace_hardirqs_on+0xbd/0x310
[  318.640939]  apic_timer_interrupt+0xf/0x20
[  318.645509]  ? kasan_check_read+0x11/0x20
[  318.650324]  </IRQ>
[  318.654637]  ? __run_timers+0x7da/0xc70
[  318.658863] RIP: 0010:check_memory_region+0x121/0x1b0
[  318.662996]  ? trace_hardirqs_off_caller+0x310/0x310
[  318.665244] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  318.669216]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.674384] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  318.679485]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  318.698370] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  318.702591]  __run_timers+0x7e5/0xc70
[  318.710285] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  318.714530]  ? timer_fixup_init+0x70/0x70
[  318.721783] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  318.721796] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  318.725630]  ? kasan_check_read+0x11/0x20
[  318.732902] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  318.737042]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.744306]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.751560]  ? rcu_softirq_qs+0x20/0x20
[  318.755696]  kasan_check_read+0x11/0x20
[  318.762967]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.768227]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  318.773493]  ? check_preemption_disabled+0x48/0x280
[  318.777448]  ? rcu_softirq_qs+0x20/0x20
[  318.781411]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  318.786938]  rcu_is_watching+0x10/0x30
[  318.792024]  ? retint_kernel+0x2d/0x2d
[  318.797040]  list_lru_count_one+0x362/0x450
[  318.801002]  ? trace_hardirqs_on_caller+0xc0/0x310
[  318.805761]  ? list_lru_isolate_move+0x3c0/0x3c0
[  318.809673]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  318.813562]  ? shmem_free_inode+0xd0/0xd0
[  318.817867]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  318.822785]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  318.827532]  ? zap_class+0x640/0x640
[  318.832296]  ? ubifs_shrink_count+0xc4/0x100
[  318.836442]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.841880]  super_cache_count+0x153/0x2e0
[  318.847403]  ? check_preemption_disabled+0x48/0x280
[  318.851104]  do_shrink_slab+0x1b1/0xd30
[  318.855504]  ? __lock_is_held+0xb5/0x140
[  318.861023]  ? lock_acquire+0x1ed/0x520
[  318.865244]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.870293]  ? snapshot_refaults+0x290/0x290
[  318.874248]  ? check_preemption_disabled+0x48/0x280
[  318.878312]  ? lock_release+0xa00/0xa00
[  318.882275]  run_timer_softirq+0x52/0xb0
[  318.887807]  ? perf_trace_sched_process_exec+0x860/0x860
[  318.892200]  ? rcu_read_lock_sched_held+0x14f/0x180
[  318.897206]  ? down_read_trylock+0xda/0x140
[  318.901162]  __do_softirq+0x308/0xb7e
[  318.905210]  ? shrink_slab+0x207/0x8c0
[  318.910675]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  318.915675]  ? downgrade_write+0x270/0x270
[  318.919984]  ? lock_downgrade+0x900/0x900
[  318.923782]  shrink_slab+0x389/0x8c0
[  318.927658]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  318.932137]  ? shrink_active_list+0x1f00/0x1f00
[  318.936375]  ? pvclock_read_flags+0x160/0x160
[  318.940511]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  318.944211]  ? lapic_next_event+0x5a/0x90
[  318.949778]  ? kasan_check_read+0x11/0x20
[  318.954445]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.958923]  ? do_raw_spin_unlock+0xa7/0x330
[  318.964563]  ? kvm_clock_read+0x18/0x30
[  318.968695]  ? ___preempt_schedule+0x16/0x18
[  318.972840]  ? kvm_sched_clock_read+0x9/0x20
[  318.978366]  ? _raw_spin_unlock+0x3f/0x50
[  318.982754]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  318.986724]  shrink_node+0x431/0x16b0
[  318.991119]  ? check_preemption_disabled+0x48/0x280
[  318.995512]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  318.999678]  irq_exit+0x17f/0x1c0
[  319.005215]  ? shrink_node_memcg+0x18f0/0x18f0
[  319.008982]  smp_apic_timer_interrupt+0x1cb/0x760
[  319.013986]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  319.019246]  ? smp_reschedule_interrupt+0x109/0x650
[  319.022687]  ? trace_hardirqs_on+0xbd/0x310
[  319.027259]  ? smp_call_function_single_interrupt+0x650/0x650
[  319.032098]  ? vmpressure+0x271/0x340
[  319.036667]  ? interrupt_entry+0xb5/0xc0
[  319.041667]  ? do_raw_spin_trylock+0x270/0x270
[  319.045974]  ? trace_hardirqs_off_caller+0xbb/0x310
[  319.051845]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  319.055630]  ? trace_hardirqs_off_caller+0xbb/0x310
[  319.059674]  ? __cpuset_node_allowed+0x19b/0x660
[  319.064243]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  319.069242]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  319.074780]  ? trace_hardirqs_on_caller+0x310/0x310
[  319.079784]  ? vmpressure+0x1a2/0x340
[  319.084530]  ? trace_hardirqs_on_caller+0x310/0x310
[  319.089365]  do_try_to_free_pages+0x3e7/0x1290
[  319.095060]  ? task_prio+0x50/0x50
[  319.100064]  ? zap_class+0x640/0x640
[  319.103852]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.108865]  ? shrink_node+0x16b0/0x16b0
[  319.113422]  ? check_preemption_disabled+0x48/0x280
[  319.116942]  ? __lock_is_held+0xb5/0x140
[  319.120648]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  319.126178]  try_to_free_pages+0x4d0/0xb90
[  319.130219]  apic_timer_interrupt+0xf/0x20
[  319.135217]  ? do_try_to_free_pages+0x1290/0x1290
[  319.139258]  </IRQ>
[  319.144108]  ? lock_acquire+0x1ed/0x520
[  319.148327] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  319.152541]  ? set_page_refcounted+0x280/0x280
[  319.157373] 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
[  319.159597]  ? lock_release+0xa00/0xa00
[  319.163546] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  319.168466]  ? _raw_spin_unlock_irq+0x60/0x80
[  319.173035] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  319.191933]  ? psi_memstall_enter+0x240/0x2b0
[  319.195891] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  319.203585]  ? psi_memstall_tick+0x230/0x230
[  319.208063] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  319.215334]  __alloc_pages_slowpath+0xa14/0x2e10
[  319.219804] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  319.227092]  ? warn_alloc+0x120/0x120
[  319.231459] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  319.238722]  ? mark_held_locks+0x130/0x130
[  319.243490]  skb_clone+0x1bb/0x500
[  319.250724]  ? find_get_entry+0xaae/0x1120
[  319.254512]  ? skb_split+0x11e0/0x11e0
[  319.261781]  ? filemap_map_pages+0x1a20/0x1a20
[  319.266005]  ? preempt_notifier_register+0x200/0x200
[  319.269531]  ? zap_class+0x640/0x640
[  319.273751]  ? __switch_to_asm+0x34/0x70
[  319.277633]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  319.282198]  ? __switch_to_asm+0x34/0x70
[  319.287293]  ? check_preemption_disabled+0x48/0x280
[  319.290988]  ? __switch_to_asm+0x40/0x70
[  319.295038]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.300558]  ? __switch_to_asm+0x34/0x70
[  319.304609]  ? should_fail+0x22d/0xd01
[  319.309616]  ? __switch_to_asm+0x40/0x70
[  319.313668]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  319.319190]  ? __switch_to_asm+0x40/0x70
[  319.323267]  ? zap_class+0x640/0x640
[  319.327152]  ? __switch_to_asm+0x34/0x70
[  319.331223]  ? __lock_is_held+0xb5/0x140
[  319.336288]  ? __switch_to_asm+0x34/0x70
[  319.336302]  ? __switch_to_asm+0x40/0x70
[  319.340359]  ? mark_held_locks+0x130/0x130
[  319.344053]  ? __switch_to_asm+0x34/0x70
[  319.348115]  ? lock_release+0xa00/0xa00
[  319.352164]  bpf_clone_redirect+0xb9/0x490
[  319.356214]  ? perf_trace_sched_process_exec+0x860/0x860
[  319.360260]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  319.364481]  ? xa_load+0x2ba/0x460
[  319.368531]  ? __sched_text_start+0x8/0x8
[  319.372493]  ? lock_downgrade+0x900/0x900
[  319.376716]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  319.382147]  ? __might_sleep+0x95/0x190
[  319.387147]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  319.390672]  __alloc_pages_nodemask+0xa80/0xde0
[  319.394824]  ? find_held_lock+0x36/0x1c0
[  319.398960]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  319.403731]  ? lock_acquire+0x1ed/0x520
[  319.407687]  ? __page_cache_alloc+0x191/0x5c0
[  319.412443]  ? bpf_test_run+0x3cb/0x780
[  319.417100]  ? xa_load+0x2e1/0x460
[  319.421151]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  319.426154]  ? xa_clear_mark+0x40/0x40
[  319.430146]  ? check_preemption_disabled+0x48/0x280
[  319.434623]  ? zap_class+0x640/0x640
[  319.438589]  ? kasan_check_read+0x11/0x20
[  319.442117]  ? zap_class+0x640/0x640
[  319.447634]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.451522]  ? zap_class+0x640/0x640
[  319.456525]  ? rcu_softirq_qs+0x20/0x20
[  319.460227]  ? __do_page_cache_readahead+0x663/0x810
[  319.464443]  ? preempt_schedule+0x4d/0x60
[  319.468141]  ? find_held_lock+0x36/0x1c0
[  319.473399]  ? ___preempt_schedule+0x16/0x18
[  319.477100]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  319.481060]  ? bpf_test_run+0x25d/0x780
[  319.486146]  alloc_pages_current+0x173/0x350
[  319.490280]  ? netlink_diag_dump+0x2a0/0x2a0
[  319.494327]  __page_cache_alloc+0x38c/0x5c0
[  319.498723]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.504245]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.508206]  ? bpf_test_init.isra.10+0x70/0x100
[  319.512602]  ? kasan_check_read+0x11/0x20
[  319.516996]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  319.521333]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.526863]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  319.531782]  ? generic_perform_write+0x6a0/0x6a0
[  319.536441]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  319.540577]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.545334]  ? fput+0x130/0x1a0
[  319.550610]  ? check_preemption_disabled+0x48/0x280
[  319.555450]  ? __bpf_prog_get+0x9b/0x290
[  319.560197]  filemap_fault+0x1595/0x25f0
[  319.565731]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  319.571267]  ? __lock_page_or_retry+0xa00/0xa00
[  319.574526]  ? bpf_prog_test_run+0x130/0x1a0
[  319.579536]  ? mark_held_locks+0x130/0x130
[  319.583578]  ? __x64_sys_bpf+0x3d8/0x520
[  319.587630]  ? filemap_map_pages+0xd6b/0x1a20
[  319.592456]  ? bpf_prog_get+0x20/0x20
[  319.597114]  ? lock_downgrade+0x900/0x900
[  319.601520]  ? do_syscall_64+0x1b9/0x820
[  319.605732]  ? check_preemption_disabled+0x48/0x280
[  319.609788]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  319.614266]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.618062]  ? syscall_return_slowpath+0x5e0/0x5e0
[  319.622195]  ? kasan_check_read+0x11/0x20
[  319.626244]  ? trace_hardirqs_on_caller+0x310/0x310
[  319.631244]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.636593]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  319.641508]  ? rcu_softirq_qs+0x20/0x20
[  319.646430]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  319.650571]  ? filemap_map_pages+0xd92/0x1a20
[  319.655560]  ? __switch_to_asm+0x40/0x70
[  319.660832]  ? find_get_entries_tag+0x1400/0x1400
[  319.665826]  ? __switch_to_asm+0x34/0x70
[  319.669797]  ? find_held_lock+0x36/0x1c0
[  319.676449]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  319.680944]  ? lock_acquire+0x1ed/0x520
[  319.684983]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  319.689807]  ? ext4_filemap_fault+0x7a/0xad
[  319.693873] rcu: rcu_preempt kthread starved for 10735 jiffies! g17693 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[  319.697904]  ? lock_release+0xa00/0xa00
[  319.702720] rcu: RCU grace-period kthread stack dump:
[  319.706690]  ? perf_trace_sched_process_exec+0x860/0x860
[  319.712038] rcu_preempt     R  running task    22696    10      2 0x80000000
[  319.716356]  ? print_usage_bug+0xc0/0xc0
[  319.726815] Call Trace:
[  319.730801]  ? down_read+0x8d/0x120
[  319.735974]  __schedule+0x8cf/0x21d0
[  319.741409]  ? ext4_filemap_fault+0x7a/0xad
[  319.748590]  ? __sched_text_start+0x8/0x8
[  319.752633]  ? __down_interruptible+0x700/0x700
[  319.755205]  ? add_timer_on+0xa20/0xa20
[  319.758851]  ? find_held_lock+0x36/0x1c0
[  319.762548]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  319.766862]  ext4_filemap_fault+0x82/0xad
[  319.770993]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  319.775676]  __do_fault+0x100/0x6b0
[  319.779636]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  319.783680]  ? lock_downgrade+0x900/0x900
[  319.788772]  ? trace_hardirqs_on+0xbd/0x310
[  319.792918]  ? pmd_devmap_trans_unstable+0x220/0x220
[  319.798006]  ? kasan_check_read+0x11/0x20
[  319.801615]  ? kasan_check_read+0x11/0x20
[  319.806181]  ? prepare_to_swait_event+0x25a/0x800
[  319.810314]  ? do_raw_spin_unlock+0xa7/0x330
[  319.815158]  ? trace_hardirqs_off_caller+0x310/0x310
[  319.820250]  ? do_raw_spin_trylock+0x270/0x270
[  319.824383]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  319.828521]  __handle_mm_fault+0x3ea0/0x5be0
[  319.833340]  schedule+0xfe/0x460
[  319.837750]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  319.842833]  ? __schedule+0x21d0/0x21d0
[  319.847415]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  319.852497]  ? prepare_to_swait_event+0x25a/0x800
[  319.856897]  ? zap_class+0x640/0x640
[  319.860244]  ? __init_swait_queue_head+0x150/0x150
[  319.865071]  ? zap_class+0x640/0x640
[  319.869036]  ? __lockdep_init_map+0x105/0x590
[  319.873603]  ? __x64_sys_futex+0x53e/0x6a0
[  319.878430]  ? lockdep_init_map+0x9/0x10
[  319.882128]  ? find_held_lock+0x36/0x1c0
[  319.887050]  schedule_timeout+0x140/0x260
[  319.890752]  ? handle_mm_fault+0x42a/0xc70
[  319.895238]  ? usleep_range+0x1a0/0x1a0
[  319.899459]  ? lock_downgrade+0x900/0x900
[  319.903538]  ? __next_timer_interrupt+0x1a0/0x1a0
[  319.907599]  ? check_preemption_disabled+0x48/0x280
[  319.911753]  rcu_gp_fqs_loop+0x762/0xa80
[  319.915975]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  319.919950]  ? rcu_gp_fqs_check_wake+0x170/0x170
[  319.924085]  ? kasan_check_read+0x11/0x20
[  319.924102]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  319.928944]  ? trace_hardirqs_off_caller+0x310/0x310
[  319.933956]  ? rcu_softirq_qs+0x20/0x20
[  319.938007]  ? perf_trace_sched_process_exec+0x860/0x860
[  319.942928]  ? trace_hardirqs_off_caller+0x310/0x310
[  319.947668]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  319.951806]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  319.957071]  ? rcu_gp_init+0x90b/0x1260
[  319.962158]  ? check_preemption_disabled+0x48/0x280
[  319.966117]  ? dump_blkd_tasks.isra.48+0xe0/0xe0
[  319.971553]  handle_mm_fault+0x54f/0xc70
[  319.976639]  ? rcu_accelerate_cbs+0x562/0xae0
[  319.982161]  ? __handle_mm_fault+0x5be0/0x5be0
[  319.987681]  ? zap_class+0x640/0x640
[  319.991637]  ? find_vma+0x34/0x190
[  319.996637]  ? zap_class+0x640/0x640
[  320.001380]  __do_page_fault+0x5e8/0xe60
[  320.005433]  ? __lock_is_held+0xb5/0x140
[  320.009907]  ? trace_hardirqs_off+0xb8/0x310
[  320.014476]  ? __lock_is_held+0xb5/0x140
[  320.018180]  do_page_fault+0xf2/0x7e0
[  320.021702]  ? zap_class+0x640/0x640
[  320.025403]  ? vmalloc_sync_all+0x30/0x30
[  320.029452]  ? rcu_accelerate_cbs+0x10a/0xae0
[  320.033538]  ? error_entry+0x70/0xd0
[  320.037935]  ? find_held_lock+0x36/0x1c0
[  320.041975]  ? trace_hardirqs_off_caller+0xbb/0x310
[  320.045774]  ? rcu_gp_kthread+0x8cf/0xc70
[  320.049473]  ? trace_hardirqs_on_caller+0xc0/0x310
[  320.053603]  ? _raw_spin_unlock_irq+0x27/0x80
[  320.058086]  ? syscall_return_slowpath+0x5e0/0x5e0
[  320.061790]  ? _raw_spin_unlock_irq+0x27/0x80
[  320.065841]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  320.070841]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  320.074974]  ? trace_hardirqs_on_caller+0x310/0x310
[  320.079885]  ? trace_hardirqs_on+0xbd/0x310
[  320.084366]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  320.089283]  ? kasan_check_read+0x11/0x20
[  320.093774]  ? prepare_exit_to_usermode+0x291/0x3b0
[  320.098607]  ? trace_hardirqs_off_caller+0x310/0x310
[  320.103175]  ? page_fault+0x8/0x30
[  320.108181]  ? perf_trace_sched_process_exec+0x860/0x860
[  320.112485]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  320.117923]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.122053]  ? page_fault+0x8/0x30
[  320.127063]  rcu_gp_kthread+0x341/0xc70
[  320.132146]  page_fault+0x1e/0x30
[  320.135683]  ? rcu_gp_init+0x1260/0x1260
[  320.141110] RIP: 0033:0x404068
[  320.145944]  ? mark_held_locks+0x130/0x130
[  320.151470] Code: Bad RIP value.
[  320.154991]  ? __schedule+0x168a/0x21d0
[  320.158944] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  320.162389]  ? _raw_spin_unlock_irq+0x27/0x80
[  320.166433] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  320.169616]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  320.173841] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  320.177197]  ? trace_hardirqs_on+0xbd/0x310
[  320.181149] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  320.186507]  ? kasan_check_read+0x11/0x20
[  320.190978] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  320.198241]  ? __schedule+0x168a/0x21d0
[  320.202811] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  320.210075]  ? trace_hardirqs_off_caller+0x310/0x310
[  320.214389] warn_alloc_show_mem: 1 callbacks suppressed
[  320.214409] Mem-Info:
[  320.221657]  ? lock_pin_lock+0x350/0x350
[  320.225838] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  320.225838]  active_file:13 inactive_file:28 isolated_file:0
[  320.225838]  unevictable:0 dirty:1 writeback:0 unstable:0
[  320.225838]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  320.225838]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  320.225838]  free:13541 free_pcp:161 free_cma:0
[  320.233082]  ? _raw_spin_unlock_irq+0x60/0x80
[  320.237054] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  320.244293]  ? __schedule+0x168a/0x21d0
[  320.244308]  ? __switch_to_asm+0x40/0x70
[  320.249404] 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
[  320.254772]  ? __switch_to_asm+0x40/0x70
[  320.257173] lowmem_reserve[]: 0 2818 6321 6321
[  320.261257]  ? show_schedstat+0x721/0xf30
[  320.294307] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  320.298808]  ? __sched_text_start+0x8/0x8
[  320.326709] lowmem_reserve[]: 0 0 3503 3503
[  320.330705]  ? find_held_lock+0x36/0x1c0
[  320.334736] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  320.360850]  ? __kthread_parkme+0xce/0x1a0
[  320.364898] lowmem_reserve[]: 0 0 0 0
[  320.369472]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  320.373594] 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
[  320.401175]  ? _raw_spin_unlock_irqrestore+0x82/0xd0
[  320.405303] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  320.409618]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  320.413669] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  320.442812]  ? trace_hardirqs_on+0xbd/0x310
[  320.447031] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  320.450822]  ? kasan_check_read+0x11/0x20
[  320.455901] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  320.469416]  ? __kthread_parkme+0xce/0x1a0
[  320.474512] 4984 total pagecache pages
[  320.489677]  ? trace_hardirqs_off_caller+0x310/0x310
[  320.494239] 0 pages in swap cache
[  320.508708]  ? _raw_spin_unlock_irqrestore+0x6d/0xd0
[  320.513007] Swap cache stats: add 0, delete 0, find 0/0
[  320.521884]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  320.526026] Free swap  = 0kB
[  320.534592]  ? __kthread_parkme+0xfb/0x1a0
[  320.538805] Total swap = 0kB
[  320.542691]  ? rcu_gp_init+0x1260/0x1260
[  320.547788] 1965979 pages RAM
[  320.551264]  kthread+0x35a/0x440
[  320.556357] 0 pages HighMem/MovableOnly
[  320.556366] 342853 pages reserved
[  320.561724]  ? kthread_stop+0x900/0x900
[  320.567234] 0 pages cma reserved
[  320.570247]  ret_from_fork+0x3a/0x50
[  320.574536] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  320.577573] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  320.581614] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  320.584739] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  320.588008] syz-fuzzer cpuset=/ mems_allowed=0
[  320.591971] syz-executor4 cpuset=syz4 mems_allowed=0
[  320.595423] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  320.656607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  320.665953] Call Trace:
[  320.668535]  <IRQ>
[  320.670687]  dump_stack+0x244/0x39d
[  320.674320]  ? dump_stack_print_info.cold.1+0x20/0x20
[  320.679521]  warn_alloc.cold.116+0xb7/0x1bd
[  320.683857]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  320.688706]  ? lock_downgrade+0x900/0x900
[  320.692865]  ? trace_hardirqs_off+0xb8/0x310
[  320.697301]  ? trace_hardirqs_off+0xb8/0x310
[  320.701729]  __alloc_pages_slowpath+0x26e8/0x2e10
[  320.706605]  ? warn_alloc+0x120/0x120
[  320.710414]  ? print_usage_bug+0xc0/0xc0
[  320.714478]  ? warn_alloc+0x120/0x120
[  320.718291]  ? warn_alloc+0x120/0x120
[  320.722095]  ? print_usage_bug+0xc0/0xc0
[  320.726162]  ? kvm_clock_read+0x18/0x30
[  320.730156]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  320.735190]  ? print_usage_bug+0xc0/0xc0
[  320.739268]  ? __lock_acquire+0x62f/0x4c20
[  320.743513]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  320.749055]  ? should_fail+0x22d/0xd01
[  320.752942]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  320.758237]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  320.763340]  ? __lock_acquire+0x62f/0x4c20
[  320.767613]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  320.772720]  ? __lock_acquire+0x62f/0x4c20
[  320.776955]  ? should_fail+0x22d/0xd01
[  320.780844]  ? rcu_irq_exit+0x1a2/0x390
[  320.784839]  ? mark_held_locks+0x130/0x130
[  320.789084]  ? mark_held_locks+0x130/0x130
[  320.793375]  ? mark_held_locks+0xc7/0x130
[  320.797524]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  320.802560]  ? zap_class+0x640/0x640
[  320.806282]  ? print_usage_bug+0xc0/0xc0
[  320.810350]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.815889]  ? check_preemption_disabled+0x48/0x280
[  320.820921]  ? __lock_is_held+0xb5/0x140
[  320.824989]  __alloc_pages_nodemask+0xa80/0xde0
[  320.829656]  ? zap_class+0x640/0x640
[  320.833384]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  320.838410]  ? find_held_lock+0x36/0x1c0
[  320.842483]  ? ____cache_alloc_node+0x1c7/0x1e0
[  320.847152]  ? lock_downgrade+0x900/0x900
[  320.851311]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.856856]  cache_grow_begin+0xa5/0x8c0
[  320.860917]  ? do_raw_spin_unlock+0xa7/0x330
[  320.865338]  fallback_alloc+0x204/0x2e0
[  320.869321]  ____cache_alloc_node+0x1c7/0x1e0
[  320.873826]  kmem_cache_alloc_node+0xe3/0x730
[  320.878326]  ? ipv6_get_ifaddr+0x42e/0x620
[  320.882572]  __alloc_skb+0x119/0x770
[  320.886293]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  320.891578]  ? netdev_alloc_frag+0x1f0/0x1f0
[  320.896006]  ? lock_downgrade+0x900/0x900
[  320.900167]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  320.905705]  ? refcount_sub_and_test_checked+0x203/0x310
[  320.911160]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  320.916611]  ? addrconf_rs_timer+0x690/0x690
[  320.921034]  ndisc_alloc_skb+0x144/0x340
[  320.925113]  ndisc_send_rs+0x331/0x6e0
[  320.929012]  addrconf_rs_timer+0x314/0x690
[  320.933255]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.937592]  call_timer_fn+0x272/0x920
[  320.941503]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.946230]  ? process_timeout+0x40/0x40
[  320.950301]  ? mark_held_locks+0xc7/0x130
[  320.954448]  ? _raw_spin_unlock_irq+0x27/0x80
[  320.958945]  ? _raw_spin_unlock_irq+0x27/0x80
[  320.963439]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.967688]  ? lockdep_hardirqs_on+0x296/0x5b0
[  320.972293]  ? trace_hardirqs_on+0xbd/0x310
[  320.976615]  ? kasan_check_read+0x11/0x20
[  320.980761]  ? __run_timers+0x7da/0xc70
[  320.984749]  ? trace_hardirqs_off_caller+0x310/0x310
[  320.989865]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.994112]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  320.998348]  __run_timers+0x7e5/0xc70
[  321.002164]  ? timer_fixup_init+0x70/0x70
[  321.006316]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  321.011332]  ? zap_class+0x640/0x640
[  321.015054]  ? print_usage_bug+0xc0/0xc0
[  321.019149]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  321.024365]  ? find_held_lock+0x36/0x1c0
[  321.028446]  ? zap_class+0x640/0x640
[  321.032170]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.037711]  ? check_preemption_disabled+0x48/0x280
[  321.042742]  ? __lock_is_held+0xb5/0x140
[  321.046816]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.052359]  ? check_preemption_disabled+0x48/0x280
[  321.057381]  run_timer_softirq+0x52/0xb0
[  321.061463]  ? rcu_read_lock_sched_held+0x14f/0x180
[  321.066480]  __do_softirq+0x308/0xb7e
[  321.070301]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  321.074802]  ? lock_downgrade+0x900/0x900
[  321.078956]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  321.084069]  ? pvclock_read_flags+0x160/0x160
[  321.088570]  ? lapic_next_event+0x5a/0x90
[  321.092734]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.098286]  ? kvm_clock_read+0x18/0x30
[  321.102265]  ? kvm_sched_clock_read+0x9/0x20
[  321.106693]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.112231]  ? check_preemption_disabled+0x48/0x280
[  321.117301]  irq_exit+0x17f/0x1c0
[  321.120758]  smp_apic_timer_interrupt+0x1cb/0x760
[  321.125615]  ? smp_reschedule_interrupt+0x109/0x650
[  321.130639]  ? smp_call_function_single_interrupt+0x650/0x650
[  321.136535]  ? interrupt_entry+0xb5/0xc0
[  321.140599]  ? trace_hardirqs_off_caller+0xbb/0x310
[  321.145619]  ? trace_hardirqs_off_caller+0xbb/0x310
[  321.150637]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  321.155482]  ? trace_hardirqs_on_caller+0x310/0x310
[  321.160503]  ? trace_hardirqs_on_caller+0x310/0x310
[  321.165538]  ? task_prio+0x50/0x50
[  321.169082]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.174624]  ? check_preemption_disabled+0x48/0x280
[  321.179650]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  321.184503]  apic_timer_interrupt+0xf/0x20
[  321.188730]  </IRQ>
[  321.190973] RIP: 0010:check_memory_region+0x121/0x1b0
[  321.196169] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  321.215070] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  321.222830] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  321.230100] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  321.237381] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  321.244665] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  321.251937] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  321.259223]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.264509]  kasan_check_read+0x11/0x20
[  321.268491]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.273600]  ? rcu_softirq_qs+0x20/0x20
[  321.277590]  rcu_is_watching+0x10/0x30
[  321.281485]  list_lru_count_one+0x362/0x450
[  321.285811]  ? list_lru_isolate_move+0x3c0/0x3c0
[  321.290566]  ? shmem_free_inode+0xd0/0xd0
[  321.294718]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.300257]  ? ubifs_shrink_count+0xc4/0x100
[  321.304679]  super_cache_count+0x153/0x2e0
[  321.308921]  do_shrink_slab+0x1b1/0xd30
[  321.312905]  ? lock_acquire+0x1ed/0x520
[  321.316885]  ? snapshot_refaults+0x290/0x290
[  321.321300]  ? lock_release+0xa00/0xa00
[  321.325291]  ? perf_trace_sched_process_exec+0x860/0x860
[  321.330754]  ? down_read_trylock+0xda/0x140
[  321.335087]  ? shrink_slab+0x207/0x8c0
[  321.338990]  ? downgrade_write+0x270/0x270
[  321.343268]  shrink_slab+0x389/0x8c0
[  321.346992]  ? shrink_active_list+0x1f00/0x1f00
[  321.351672]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  321.357329]  ? kasan_check_read+0x11/0x20
[  321.361479]  ? do_raw_spin_unlock+0xa7/0x330
[  321.365895]  ? ___preempt_schedule+0x16/0x18
[  321.370316]  ? _raw_spin_unlock+0x3f/0x50
[  321.374470]  shrink_node+0x431/0x16b0
[  321.378317]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  321.383631]  ? shrink_node_memcg+0x18f0/0x18f0
[  321.388214]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  321.392800]  ? trace_hardirqs_on+0xbd/0x310
[  321.397127]  ? vmpressure+0x271/0x340
[  321.400932]  ? do_raw_spin_trylock+0x270/0x270
[  321.405537]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  321.411089]  ? __cpuset_node_allowed+0x19b/0x660
[  321.415851]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  321.421563]  ? vmpressure+0x1a2/0x340
[  321.425390]  do_try_to_free_pages+0x3e7/0x1290
[  321.429990]  ? zap_class+0x640/0x640
[  321.433722]  ? shrink_node+0x16b0/0x16b0
[  321.437792]  ? __lock_is_held+0xb5/0x140
[  321.441869]  try_to_free_pages+0x4d0/0xb90
[  321.446128]  ? do_try_to_free_pages+0x1290/0x1290
[  321.450983]  ? lock_acquire+0x1ed/0x520
[  321.454961]  ? set_page_refcounted+0x280/0x280
[  321.459568]  ? lock_release+0xa00/0xa00
[  321.463549]  ? _raw_spin_unlock_irq+0x60/0x80
[  321.468048]  ? psi_memstall_enter+0x240/0x2b0
[  321.472549]  ? psi_memstall_tick+0x230/0x230
[  321.476972]  __alloc_pages_slowpath+0xa14/0x2e10
[  321.481758]  ? warn_alloc+0x120/0x120
[  321.485566]  ? mark_held_locks+0x130/0x130
[  321.489813]  ? find_get_entry+0xaae/0x1120
[  321.494061]  ? filemap_map_pages+0x1a20/0x1a20
[  321.498650]  ? zap_class+0x640/0x640
[  321.502406]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  321.507946]  ? check_preemption_disabled+0x48/0x280
[  321.512965]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.518502]  ? should_fail+0x22d/0xd01
[  321.522398]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  321.527506]  ? zap_class+0x640/0x640
[  321.531248]  ? __lock_is_held+0xb5/0x140
[  321.535327]  ? mark_held_locks+0x130/0x130
[  321.539566]  ? lock_release+0xa00/0xa00
[  321.543543]  ? perf_trace_sched_process_exec+0x860/0x860
[  321.548993]  ? xa_load+0x2ba/0x460
[  321.552536]  ? lock_downgrade+0x900/0x900
[  321.556695]  ? __might_sleep+0x95/0x190
[  321.560679]  __alloc_pages_nodemask+0xa80/0xde0
[  321.565357]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  321.570377]  ? __page_cache_alloc+0x191/0x5c0
[  321.574877]  ? xa_load+0x2e1/0x460
[  321.578425]  ? xa_clear_mark+0x40/0x40
[  321.582329]  ? zap_class+0x640/0x640
[  321.586056]  ? zap_class+0x640/0x640
[  321.589781]  ? zap_class+0x640/0x640
[  321.593519]  ? __do_page_cache_readahead+0x663/0x810
[  321.598647]  ? find_held_lock+0x36/0x1c0
[  321.602719]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  321.608267]  alloc_pages_current+0x173/0x350
[  321.612689]  __page_cache_alloc+0x38c/0x5c0
[  321.617014]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.621947]  ? kasan_check_read+0x11/0x20
[  321.626098]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.631391]  ? generic_perform_write+0x6a0/0x6a0
[  321.636165]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.641704]  ? check_preemption_disabled+0x48/0x280
[  321.646747]  filemap_fault+0x1595/0x25f0
[  321.650860]  ? __lock_page_or_retry+0xa00/0xa00
[  321.655538]  ? mark_held_locks+0x130/0x130
[  321.659795]  ? filemap_map_pages+0xd6b/0x1a20
[  321.664315]  ? lock_downgrade+0x900/0x900
[  321.668464]  ? check_preemption_disabled+0x48/0x280
[  321.673486]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.678415]  ? kasan_check_read+0x11/0x20
[  321.682574]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.687856]  ? rcu_softirq_qs+0x20/0x20
[  321.691849]  ? filemap_map_pages+0xd92/0x1a20
[  321.696372]  ? find_get_entries_tag+0x1400/0x1400
[  321.701214]  ? find_held_lock+0x36/0x1c0
[  321.705325]  ? lock_acquire+0x1ed/0x520
[  321.709307]  ? ext4_filemap_fault+0x7a/0xad
[  321.713635]  ? lock_release+0xa00/0xa00
[  321.717611]  ? perf_trace_sched_process_exec+0x860/0x860
[  321.723063]  ? print_usage_bug+0xc0/0xc0
[  321.727138]  ? down_read+0x8d/0x120
[  321.730798]  ? ext4_filemap_fault+0x7a/0xad
[  321.735138]  ? __down_interruptible+0x700/0x700
[  321.739825]  ? find_held_lock+0x36/0x1c0
[  321.743908]  ext4_filemap_fault+0x82/0xad
[  321.748058]  __do_fault+0x100/0x6b0
[  321.751689]  ? lock_downgrade+0x900/0x900
[  321.755842]  ? pmd_devmap_trans_unstable+0x220/0x220
[  321.760953]  ? kasan_check_read+0x11/0x20
[  321.765114]  ? do_raw_spin_unlock+0xa7/0x330
[  321.769540]  ? do_raw_spin_trylock+0x270/0x270
[  321.774179]  __handle_mm_fault+0x3ea0/0x5be0
[  321.778599]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  321.783452]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  321.788048]  ? zap_class+0x640/0x640
[  321.791761]  ? zap_class+0x640/0x640
[  321.795489]  ? __x64_sys_futex+0x53e/0x6a0
[  321.799728]  ? find_held_lock+0x36/0x1c0
[  321.803823]  ? handle_mm_fault+0x42a/0xc70
[  321.808077]  ? lock_downgrade+0x900/0x900
[  321.812241]  ? check_preemption_disabled+0x48/0x280
[  321.817396]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  321.822323]  ? kasan_check_read+0x11/0x20
[  321.826487]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  321.831789]  ? rcu_softirq_qs+0x20/0x20
[  321.835777]  ? trace_hardirqs_off_caller+0x310/0x310
[  321.840888]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  321.846426]  ? check_preemption_disabled+0x48/0x280
[  321.851451]  handle_mm_fault+0x54f/0xc70
[  321.855531]  ? __handle_mm_fault+0x5be0/0x5be0
[  321.860121]  ? find_vma+0x34/0x190
[  321.863669]  __do_page_fault+0x5e8/0xe60
[  321.867748]  ? trace_hardirqs_off+0xb8/0x310
[  321.872173]  do_page_fault+0xf2/0x7e0
[  321.875979]  ? vmalloc_sync_all+0x30/0x30
[  321.880128]  ? error_entry+0x70/0xd0
[  321.883847]  ? trace_hardirqs_off_caller+0xbb/0x310
[  321.888881]  ? trace_hardirqs_on_caller+0xc0/0x310
[  321.893820]  ? syscall_return_slowpath+0x5e0/0x5e0
[  321.898754]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  321.903605]  ? trace_hardirqs_on_caller+0x310/0x310
[  321.908640]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  321.914102]  ? prepare_exit_to_usermode+0x291/0x3b0
[  321.919117]  ? page_fault+0x8/0x30
[  321.922660]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  321.927511]  ? page_fault+0x8/0x30
[  321.931054]  page_fault+0x1e/0x30
[  321.934509] RIP: 0033:0x404068
[  321.937713] Code: Bad RIP value.
[  321.941078] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  321.946439] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  321.953706] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  321.960972] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  321.968243] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  321.975512] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  321.982829] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  321.982831] Mem-Info:
[  321.982863] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  321.982863]  active_file:13 inactive_file:28 isolated_file:0
[  321.982863]  unevictable:0 dirty:1 writeback:0 unstable:0
[  321.982863]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  321.982863]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  321.982863]  free:13541 free_pcp:161 free_cma:0
[  321.990113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  321.992559] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  322.025574] Call Trace:
[  322.034919] 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
[  322.062837]  <IRQ>
[  322.065410] lowmem_reserve[]: 0 2818 6321 6321
[  322.091520]  dump_stack+0x244/0x39d
[  322.093644] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  322.098265]  ? dump_stack_print_info.cold.1+0x20/0x20
[  322.101887] lowmem_reserve[]: 0 0 3503 3503
[  322.129478]  warn_alloc.cold.116+0xb7/0x1bd
[  322.134638] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  322.138953]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  322.143250] lowmem_reserve[]: 0 0 0 0
[  322.172409]  ? lock_downgrade+0x900/0x900
[  322.177225] 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
[  322.181024]  ? trace_hardirqs_off+0xb8/0x310
[  322.185143] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  322.198680]  ? trace_hardirqs_off+0xb8/0x310
[  322.203061] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  322.218232]  __alloc_pages_slowpath+0x26e8/0x2e10
[  322.222622] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  322.237110]  ? warn_alloc+0x120/0x120
[  322.241916] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  322.250742]  ? warn_alloc+0x120/0x120
[  322.254532] 4984 total pagecache pages
[  322.263098]  ? zap_class+0x640/0x640
[  322.266887] 0 pages in swap cache
[  322.270759]  ? warn_alloc+0x120/0x120
[  322.274474] Swap cache stats: add 0, delete 0, find 0/0
[  322.274482] Free swap  = 0kB
[  322.277951]  ? print_usage_bug+0xc0/0xc0
[  322.281729] Total swap = 0kB
[  322.287083]  ? idle_cpu+0x1d0/0x1d0
[  322.290078] 1965979 pages RAM
[  322.294135]  ? kvm_sched_clock_read+0x9/0x20
[  322.297132] 0 pages HighMem/MovableOnly
[  322.300751]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  322.303839] 342853 pages reserved
[  322.308257]  ? print_usage_bug+0xc0/0xc0
[  322.312210] 0 pages cma reserved
[  322.317222]  ? __lock_is_held+0xb5/0x140
[  322.320708] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  322.324705]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  322.328106] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  322.332101]  ? should_fail+0x22d/0xd01
[  322.338597] syz-fuzzer cpuset=/ mems_allowed=0
[  322.344128]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  322.367886]  ? __lock_acquire+0x62f/0x4c20
[  322.372128]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  322.377233]  ? __lock_acquire+0x62f/0x4c20
[  322.381467]  ? should_fail+0x22d/0xd01
[  322.385371]  ? mark_held_locks+0x130/0x130
[  322.389611]  ? mark_held_locks+0x130/0x130
[  322.393847]  ? __enqueue_entity+0x10d/0x1f0
[  322.398174]  ? zap_class+0x640/0x640
[  322.401888]  ? print_usage_bug+0xc0/0xc0
[  322.405950]  ? __lock_acquire+0x62f/0x4c20
[  322.410191]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.415729]  ? check_preemption_disabled+0x48/0x280
[  322.420759]  ? __lock_is_held+0xb5/0x140
[  322.424857]  __alloc_pages_nodemask+0xa80/0xde0
[  322.429531]  ? zap_class+0x640/0x640
[  322.433249]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  322.438279]  ? find_held_lock+0x36/0x1c0
[  322.442357]  ? ____cache_alloc_node+0x1c7/0x1e0
[  322.447031]  ? lock_downgrade+0x900/0x900
[  322.451187]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.456735]  cache_grow_begin+0xa5/0x8c0
[  322.460807]  ? do_raw_spin_unlock+0xa7/0x330
[  322.465225]  fallback_alloc+0x204/0x2e0
[  322.469212]  ____cache_alloc_node+0x1c7/0x1e0
[  322.473716]  kmem_cache_alloc_node+0xe3/0x730
[  322.478219]  ? ipv6_get_ifaddr+0x42e/0x620
[  322.482471]  __alloc_skb+0x119/0x770
[  322.486185]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  322.491511]  ? netdev_alloc_frag+0x1f0/0x1f0
[  322.495919]  ? lock_downgrade+0x900/0x900
[  322.500079]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.505632]  ? refcount_sub_and_test_checked+0x203/0x310
[  322.511087]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  322.516538]  ? addrconf_rs_timer+0x690/0x690
[  322.520963]  ndisc_alloc_skb+0x144/0x340
[  322.525030]  ndisc_send_rs+0x331/0x6e0
[  322.528923]  addrconf_rs_timer+0x314/0x690
[  322.533165]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.537413]  call_timer_fn+0x272/0x920
[  322.541301]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.545553]  ? process_timeout+0x40/0x40
[  322.549622]  ? __run_timers+0x7da/0xc70
[  322.553597]  ? _raw_spin_unlock_irq+0x27/0x80
[  322.558094]  ? _raw_spin_unlock_irq+0x27/0x80
[  322.562587]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.566849]  ? lockdep_hardirqs_on+0x296/0x5b0
[  322.571434]  ? trace_hardirqs_on+0xbd/0x310
[  322.575753]  ? kasan_check_read+0x11/0x20
[  322.579953]  ? __run_timers+0x7da/0xc70
[  322.583935]  ? trace_hardirqs_off_caller+0x310/0x310
[  322.589052]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  322.593284]  __run_timers+0x7e5/0xc70
[  322.597099]  ? timer_fixup_init+0x70/0x70
[  322.601247]  ? kasan_check_read+0x11/0x20
[  322.605411]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  322.610706]  ? rcu_softirq_qs+0x20/0x20
[  322.614701]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.620243]  ? check_preemption_disabled+0x48/0x280
[  322.625270]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  322.630030]  ? retint_kernel+0x2d/0x2d
[  322.633922]  ? trace_hardirqs_on_caller+0xc0/0x310
[  322.638854]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  322.643610]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  322.649067]  ? zap_class+0x640/0x640
[  322.652798]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.658341]  ? check_preemption_disabled+0x48/0x280
[  322.663372]  ? __lock_is_held+0xb5/0x140
[  322.667434]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.672977]  ? check_preemption_disabled+0x48/0x280
[  322.678006]  run_timer_softirq+0x52/0xb0
[  322.682070]  ? rcu_read_lock_sched_held+0x14f/0x180
[  322.687089]  __do_softirq+0x308/0xb7e
[  322.690895]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  322.695392]  ? lock_downgrade+0x900/0x900
[  322.699548]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  322.704660]  ? pvclock_read_flags+0x160/0x160
[  322.709157]  ? lapic_next_event+0x5a/0x90
[  322.713312]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.718861]  ? kvm_clock_read+0x18/0x30
[  322.722856]  ? kvm_sched_clock_read+0x9/0x20
[  322.727274]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.732816]  ? check_preemption_disabled+0x48/0x280
[  322.737891]  irq_exit+0x17f/0x1c0
[  322.741350]  smp_apic_timer_interrupt+0x1cb/0x760
[  322.746196]  ? smp_reschedule_interrupt+0x109/0x650
[  322.751220]  ? smp_call_function_single_interrupt+0x650/0x650
[  322.757104]  ? interrupt_entry+0xb5/0xc0
[  322.761171]  ? trace_hardirqs_off_caller+0xbb/0x310
[  322.766215]  ? trace_hardirqs_off_caller+0xbb/0x310
[  322.771246]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  322.776104]  ? trace_hardirqs_on_caller+0x310/0x310
[  322.781118]  ? trace_hardirqs_on_caller+0x310/0x310
[  322.786167]  ? task_prio+0x50/0x50
[  322.789739]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  322.795305]  ? check_preemption_disabled+0x48/0x280
[  322.800328]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  322.805179]  apic_timer_interrupt+0xf/0x20
[  322.809411]  </IRQ>
[  322.811655] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  322.816591] 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
[  322.835495] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  322.843205] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  322.850477] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  322.857744] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  322.865025] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  322.872340] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  322.879656]  skb_clone+0x1bb/0x500
[  322.883205]  ? skb_split+0x11e0/0x11e0
[  322.887094]  ? preempt_notifier_register+0x200/0x200
[  322.892194]  ? __switch_to_asm+0x34/0x70
[  322.896262]  ? __switch_to_asm+0x34/0x70
[  322.900324]  ? __switch_to_asm+0x40/0x70
[  322.904412]  ? __switch_to_asm+0x34/0x70
[  322.908472]  ? __switch_to_asm+0x40/0x70
[  322.912531]  ? __switch_to_asm+0x40/0x70
[  322.916594]  ? __switch_to_asm+0x34/0x70
[  322.920658]  ? __switch_to_asm+0x34/0x70
[  322.924745]  ? __switch_to_asm+0x40/0x70
[  322.928813]  ? __switch_to_asm+0x34/0x70
[  322.932894]  bpf_clone_redirect+0xb9/0x490
[  322.937142]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  322.942174]  ? __sched_text_start+0x8/0x8
[  322.946475]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  322.951258]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  322.956021]  ? find_held_lock+0x36/0x1c0
[  322.960093]  ? lock_acquire+0x1ed/0x520
[  322.964071]  ? bpf_test_run+0x3cb/0x780
[  322.968050]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  322.973595]  ? check_preemption_disabled+0x48/0x280
[  322.978619]  ? kasan_check_read+0x11/0x20
[  322.982796]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  322.988094]  ? rcu_softirq_qs+0x20/0x20
[  322.992070]  ? preempt_schedule+0x4d/0x60
[  322.996231]  ? ___preempt_schedule+0x16/0x18
[  323.000649]  ? bpf_test_run+0x25d/0x780
[  323.004654]  ? netlink_diag_dump+0x2a0/0x2a0
[  323.009068]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.014605]  ? bpf_test_init.isra.10+0x70/0x100
[  323.019284]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  323.024052]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  323.028910]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  323.034467]  ? fput+0x130/0x1a0
[  323.037746]  ? __bpf_prog_get+0x9b/0x290
[  323.041838]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  323.046681]  ? bpf_prog_test_run+0x130/0x1a0
[  323.051091]  ? __x64_sys_bpf+0x3d8/0x520
[  323.055152]  ? bpf_prog_get+0x20/0x20
[  323.058999]  ? do_syscall_64+0x1b9/0x820
[  323.063076]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  323.068443]  ? syscall_return_slowpath+0x5e0/0x5e0
[  323.073391]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.078408]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  323.083448]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  323.090116]  ? __switch_to_asm+0x40/0x70
[  323.094178]  ? __switch_to_asm+0x34/0x70
[  323.098244]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.103094]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  323.108478] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  323.108547] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  323.115406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  323.115411] Call Trace:
[  323.115417]  <IRQ>
[  323.115434]  dump_stack+0x244/0x39d
[  323.115451]  ? dump_stack_print_info.cold.1+0x20/0x20
[  323.122032] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  323.131309]  warn_alloc.cold.116+0xb7/0x1bd
[  323.133868] syz-executor4 cpuset=syz4 mems_allowed=0
[  323.136012]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  323.169520]  ? lock_downgrade+0x900/0x900
[  323.173675]  ? trace_hardirqs_off+0xb8/0x310
[  323.178091]  ? trace_hardirqs_off+0xb8/0x310
[  323.182508]  __alloc_pages_slowpath+0x26e8/0x2e10
[  323.187394]  ? warn_alloc+0x120/0x120
[  323.191247]  ? print_usage_bug+0xc0/0xc0
[  323.195334]  ? warn_alloc+0x120/0x120
[  323.199138]  ? warn_alloc+0x120/0x120
[  323.202946]  ? print_usage_bug+0xc0/0xc0
[  323.207013]  ? print_usage_bug+0xc0/0xc0
[  323.211078]  ? __lock_acquire+0x62f/0x4c20
[  323.215340]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.220891]  ? should_fail+0x22d/0xd01
[  323.224792]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  323.229901]  ? __lock_acquire+0x62f/0x4c20
[  323.234144]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  323.239250]  ? __lock_acquire+0x62f/0x4c20
[  323.243490]  ? should_fail+0x22d/0xd01
[  323.247375]  ? find_held_lock+0x36/0x1c0
[  323.251443]  ? mark_held_locks+0x130/0x130
[  323.255683]  ? mark_held_locks+0x130/0x130
[  323.259917]  ? zap_class+0x640/0x640
[  323.263632]  ? zap_class+0x640/0x640
[  323.267349]  ? print_usage_bug+0xc0/0xc0
[  323.271411]  ? do_raw_spin_unlock+0xa7/0x330
[  323.275824]  ? zap_class+0x640/0x640
[  323.279540]  ? print_usage_bug+0xc0/0xc0
[  323.283606]  ? wq_watchdog_touch+0x9c/0xfe
[  323.287844]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.293381]  ? check_preemption_disabled+0x48/0x280
[  323.298467]  ? __lock_is_held+0xb5/0x140
[  323.302547]  __alloc_pages_nodemask+0xa80/0xde0
[  323.307216]  ? zap_class+0x640/0x640
[  323.310936]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  323.315966]  ? find_held_lock+0x36/0x1c0
[  323.320042]  ? ____cache_alloc_node+0x1c7/0x1e0
[  323.324745]  ? lock_downgrade+0x900/0x900
[  323.328906]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.334452]  cache_grow_begin+0xa5/0x8c0
[  323.338514]  ? do_raw_spin_unlock+0xa7/0x330
[  323.342934]  fallback_alloc+0x204/0x2e0
[  323.346922]  ____cache_alloc_node+0x1c7/0x1e0
[  323.351426]  kmem_cache_alloc_node+0xe3/0x730
[  323.355955]  ? ipv6_get_ifaddr+0x42e/0x620
[  323.360205]  __alloc_skb+0x119/0x770
[  323.363920]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.369200]  ? netdev_alloc_frag+0x1f0/0x1f0
[  323.373607]  ? lock_downgrade+0x900/0x900
[  323.377810]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.383353]  ? refcount_sub_and_test_checked+0x203/0x310
[  323.388811]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  323.394262]  ? addrconf_rs_timer+0x690/0x690
[  323.398693]  ndisc_alloc_skb+0x144/0x340
[  323.402763]  ndisc_send_rs+0x331/0x6e0
[  323.406665]  addrconf_rs_timer+0x314/0x690
[  323.410919]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.415195]  call_timer_fn+0x272/0x920
[  323.419105]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.423371]  ? process_timeout+0x40/0x40
[  323.427454]  ? mark_held_locks+0xc7/0x130
[  323.431607]  ? _raw_spin_unlock_irq+0x27/0x80
[  323.436107]  ? _raw_spin_unlock_irq+0x27/0x80
[  323.440602]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.444906]  ? lockdep_hardirqs_on+0x296/0x5b0
[  323.449494]  ? trace_hardirqs_on+0xbd/0x310
[  323.453815]  ? kasan_check_read+0x11/0x20
[  323.457977]  ? __run_timers+0x7da/0xc70
[  323.461958]  ? trace_hardirqs_off_caller+0x310/0x310
[  323.467065]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.471309]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  323.475542]  __run_timers+0x7e5/0xc70
[  323.479356]  ? timer_fixup_init+0x70/0x70
[  323.483507]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  323.488528]  ? zap_class+0x640/0x640
[  323.492250]  ? print_usage_bug+0xc0/0xc0
[  323.496318]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  323.501522]  ? find_held_lock+0x36/0x1c0
[  323.505590]  ? zap_class+0x640/0x640
[  323.509314]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.514857]  ? check_preemption_disabled+0x48/0x280
[  323.519889]  ? __lock_is_held+0xb5/0x140
[  323.523951]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.529507]  ? check_preemption_disabled+0x48/0x280
[  323.534561]  run_timer_softirq+0x52/0xb0
[  323.538629]  ? rcu_read_lock_sched_held+0x14f/0x180
[  323.543645]  __do_softirq+0x308/0xb7e
[  323.547452]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  323.551964]  ? lock_downgrade+0x900/0x900
[  323.556119]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  323.561249]  ? pvclock_read_flags+0x160/0x160
[  323.565763]  ? lapic_next_event+0x5a/0x90
[  323.569926]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.575472]  ? kvm_clock_read+0x18/0x30
[  323.579451]  ? kvm_sched_clock_read+0x9/0x20
[  323.583866]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.589405]  ? check_preemption_disabled+0x48/0x280
[  323.594430]  irq_exit+0x17f/0x1c0
[  323.597901]  smp_apic_timer_interrupt+0x1cb/0x760
[  323.602745]  ? smp_reschedule_interrupt+0x109/0x650
[  323.607778]  ? smp_call_function_single_interrupt+0x650/0x650
[  323.613664]  ? interrupt_entry+0xb5/0xc0
[  323.617728]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.622747]  ? trace_hardirqs_off_caller+0xbb/0x310
[  323.627777]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.632677]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.637689]  ? trace_hardirqs_on_caller+0x310/0x310
[  323.642722]  ? task_prio+0x50/0x50
[  323.646288]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.651876]  ? check_preemption_disabled+0x48/0x280
[  323.656899]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  323.661752]  apic_timer_interrupt+0xf/0x20
[  323.665988]  </IRQ>
[  323.668249] RIP: 0010:check_memory_region+0x121/0x1b0
[  323.673477] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  323.692389] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  323.700097] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  323.707365] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  323.714630] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  323.721902] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  323.729173] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  323.736461]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.741787]  kasan_check_read+0x11/0x20
[  323.745777]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  323.750890]  ? rcu_softirq_qs+0x20/0x20
[  323.754883]  rcu_is_watching+0x10/0x30
[  323.758800]  list_lru_count_one+0x362/0x450
[  323.763140]  ? list_lru_isolate_move+0x3c0/0x3c0
[  323.767897]  ? shmem_free_inode+0xd0/0xd0
[  323.772050]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.777589]  ? ubifs_shrink_count+0xc4/0x100
[  323.782014]  super_cache_count+0x153/0x2e0
[  323.786258]  do_shrink_slab+0x1b1/0xd30
[  323.790257]  ? lock_acquire+0x1ed/0x520
[  323.794239]  ? snapshot_refaults+0x290/0x290
[  323.798650]  ? lock_release+0xa00/0xa00
[  323.802631]  ? perf_trace_sched_process_exec+0x860/0x860
[  323.808111]  ? down_read_trylock+0xda/0x140
[  323.812428]  ? shrink_slab+0x207/0x8c0
[  323.816458]  ? downgrade_write+0x270/0x270
[  323.820706]  shrink_slab+0x389/0x8c0
[  323.824421]  ? shrink_active_list+0x1f00/0x1f00
[  323.829098]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  323.834731]  ? kasan_check_read+0x11/0x20
[  323.838877]  ? do_raw_spin_unlock+0xa7/0x330
[  323.843301]  ? ___preempt_schedule+0x16/0x18
[  323.847719]  ? _raw_spin_unlock+0x3f/0x50
[  323.851877]  shrink_node+0x431/0x16b0
[  323.855711]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  323.861011]  ? shrink_node_memcg+0x18f0/0x18f0
[  323.865592]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  323.870179]  ? trace_hardirqs_on+0xbd/0x310
[  323.874519]  ? vmpressure+0x271/0x340
[  323.878342]  ? do_raw_spin_trylock+0x270/0x270
[  323.882931]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  323.888473]  ? __cpuset_node_allowed+0x19b/0x660
[  323.893244]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  323.898958]  ? vmpressure+0x1a2/0x340
[  323.902765]  do_try_to_free_pages+0x3e7/0x1290
[  323.907376]  ? zap_class+0x640/0x640
[  323.911109]  ? shrink_node+0x16b0/0x16b0
[  323.915191]  ? __lock_is_held+0xb5/0x140
[  323.919266]  try_to_free_pages+0x4d0/0xb90
[  323.923514]  ? do_try_to_free_pages+0x1290/0x1290
[  323.928386]  ? lock_acquire+0x1ed/0x520
[  323.932390]  ? set_page_refcounted+0x280/0x280
[  323.936980]  ? lock_release+0xa00/0xa00
[  323.940960]  ? _raw_spin_unlock_irq+0x60/0x80
[  323.945465]  ? psi_memstall_enter+0x240/0x2b0
[  323.949963]  ? psi_memstall_tick+0x230/0x230
[  323.954385]  __alloc_pages_slowpath+0xa14/0x2e10
[  323.959222]  ? warn_alloc+0x120/0x120
[  323.963021]  ? mark_held_locks+0x130/0x130
[  323.967264]  ? find_get_entry+0xaae/0x1120
[  323.971518]  ? filemap_map_pages+0x1a20/0x1a20
[  323.976105]  ? zap_class+0x640/0x640
[  323.979855]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  323.985400]  ? check_preemption_disabled+0x48/0x280
[  323.990421]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  323.995964]  ? should_fail+0x22d/0xd01
[  323.999859]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  324.004966]  ? zap_class+0x640/0x640
[  324.008708]  ? __lock_is_held+0xb5/0x140
[  324.012784]  ? mark_held_locks+0x130/0x130
[  324.017025]  ? lock_release+0xa00/0xa00
[  324.021000]  ? perf_trace_sched_process_exec+0x860/0x860
[  324.026454]  ? xa_load+0x2ba/0x460
[  324.029999]  ? lock_downgrade+0x900/0x900
[  324.034153]  ? __might_sleep+0x95/0x190
[  324.038156]  __alloc_pages_nodemask+0xa80/0xde0
[  324.042831]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  324.047855]  ? __page_cache_alloc+0x191/0x5c0
[  324.052354]  ? xa_load+0x2e1/0x460
[  324.055915]  ? xa_clear_mark+0x40/0x40
[  324.059855]  ? zap_class+0x640/0x640
[  324.063576]  ? zap_class+0x640/0x640
[  324.067293]  ? zap_class+0x640/0x640
[  324.071010]  ? __do_page_cache_readahead+0x663/0x810
[  324.076148]  ? find_held_lock+0x36/0x1c0
[  324.080228]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  324.085812]  alloc_pages_current+0x173/0x350
[  324.090229]  __page_cache_alloc+0x38c/0x5c0
[  324.094553]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.099485]  ? kasan_check_read+0x11/0x20
[  324.103633]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.108919]  ? generic_perform_write+0x6a0/0x6a0
[  324.113675]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.119229]  ? check_preemption_disabled+0x48/0x280
[  324.124253]  filemap_fault+0x1595/0x25f0
[  324.128358]  ? __lock_page_or_retry+0xa00/0xa00
[  324.133045]  ? mark_held_locks+0x130/0x130
[  324.137294]  ? filemap_map_pages+0xd6b/0x1a20
[  324.141802]  ? lock_downgrade+0x900/0x900
[  324.145993]  ? check_preemption_disabled+0x48/0x280
[  324.151038]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.155969]  ? kasan_check_read+0x11/0x20
[  324.160119]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.165397]  ? rcu_softirq_qs+0x20/0x20
[  324.169404]  ? filemap_map_pages+0xd92/0x1a20
[  324.173911]  ? find_get_entries_tag+0x1400/0x1400
[  324.178760]  ? find_held_lock+0x36/0x1c0
[  324.182851]  ? lock_acquire+0x1ed/0x520
[  324.186826]  ? ext4_filemap_fault+0x7a/0xad
[  324.191157]  ? lock_release+0xa00/0xa00
[  324.195132]  ? perf_trace_sched_process_exec+0x860/0x860
[  324.200589]  ? print_usage_bug+0xc0/0xc0
[  324.204686]  ? down_read+0x8d/0x120
[  324.208311]  ? ext4_filemap_fault+0x7a/0xad
[  324.212643]  ? __down_interruptible+0x700/0x700
[  324.217316]  ? find_held_lock+0x36/0x1c0
[  324.221379]  ext4_filemap_fault+0x82/0xad
[  324.225526]  __do_fault+0x100/0x6b0
[  324.229160]  ? lock_downgrade+0x900/0x900
[  324.233314]  ? pmd_devmap_trans_unstable+0x220/0x220
[  324.238439]  ? kasan_check_read+0x11/0x20
[  324.242595]  ? do_raw_spin_unlock+0xa7/0x330
[  324.247003]  ? do_raw_spin_trylock+0x270/0x270
[  324.251603]  __handle_mm_fault+0x3ea0/0x5be0
[  324.256039]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  324.260891]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  324.265489]  ? zap_class+0x640/0x640
[  324.269219]  ? zap_class+0x640/0x640
[  324.272933]  ? __x64_sys_futex+0x53e/0x6a0
[  324.277177]  ? find_held_lock+0x36/0x1c0
[  324.281270]  ? handle_mm_fault+0x42a/0xc70
[  324.285511]  ? lock_downgrade+0x900/0x900
[  324.289658]  ? check_preemption_disabled+0x48/0x280
[  324.294677]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  324.299604]  ? kasan_check_read+0x11/0x20
[  324.303751]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.309037]  ? rcu_softirq_qs+0x20/0x20
[  324.313026]  ? trace_hardirqs_off_caller+0x310/0x310
[  324.318129]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.323670]  ? check_preemption_disabled+0x48/0x280
[  324.328698]  handle_mm_fault+0x54f/0xc70
[  324.332764]  ? __handle_mm_fault+0x5be0/0x5be0
[  324.337366]  ? find_vma+0x34/0x190
[  324.340917]  __do_page_fault+0x5e8/0xe60
[  324.344996]  ? trace_hardirqs_off+0xb8/0x310
[  324.349420]  do_page_fault+0xf2/0x7e0
[  324.353223]  ? vmalloc_sync_all+0x30/0x30
[  324.357372]  ? error_entry+0x70/0xd0
[  324.361089]  ? trace_hardirqs_off_caller+0xbb/0x310
[  324.366109]  ? trace_hardirqs_on_caller+0xc0/0x310
[  324.371066]  ? syscall_return_slowpath+0x5e0/0x5e0
[  324.376001]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  324.380846]  ? trace_hardirqs_on_caller+0x310/0x310
[  324.385867]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  324.391326]  ? prepare_exit_to_usermode+0x291/0x3b0
[  324.396345]  ? page_fault+0x8/0x30
[  324.399892]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  324.404744]  ? page_fault+0x8/0x30
[  324.408298]  page_fault+0x1e/0x30
[  324.411750] RIP: 0033:0x404068
[  324.415017] Code: Bad RIP value.
[  324.418410] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  324.423782] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  324.431051] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  324.438332] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  324.445599] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  324.452864] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  324.460161] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  324.460167] warn_alloc_show_mem: 1 callbacks suppressed
[  324.460174] Mem-Info:
[  324.467466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  324.472855] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  324.472855]  active_file:13 inactive_file:28 isolated_file:0
[  324.472855]  unevictable:0 dirty:1 writeback:0 unstable:0
[  324.472855]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  324.472855]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  324.472855]  free:13541 free_pcp:161 free_cma:0
[  324.475244] Call Trace:
[  324.484635] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  324.517647]  <IRQ>
[  324.520214] 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
[  324.548155]  dump_stack+0x244/0x39d
[  324.550277] lowmem_reserve[]: 0 2818 6321 6321
[  324.576387]  ? dump_stack_print_info.cold.1+0x20/0x20
[  324.579993] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  324.584574]  warn_alloc.cold.116+0xb7/0x1bd
[  324.589729] lowmem_reserve[]: 0 0 3503 3503
[  324.617312]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  324.621607] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  324.625928]  ? lock_downgrade+0x900/0x900
[  324.630746] lowmem_reserve[]: 0 0 0 0
[  324.659907]  ? trace_hardirqs_off+0xb8/0x310
[  324.664028] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
[  324.667826]  ? trace_hardirqs_off+0xb8/0x310
[  324.672207] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  324.685729]  __alloc_pages_slowpath+0x26e8/0x2e10
[  324.690113] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  324.705301]  ? warn_alloc+0x120/0x120
[  324.710118] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  324.724582]  ? print_usage_bug+0xc0/0xc0
[  324.728362] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  324.737186]  ? warn_alloc+0x120/0x120
[  324.741227] 4984 total pagecache pages
[  324.749803]  ? warn_alloc+0x120/0x120
[  324.753588] 0 pages in swap cache
[  324.757466]  ? print_usage_bug+0xc0/0xc0
[  324.761248] Swap cache stats: add 0, delete 0, find 0/0
[  324.764690]  ? kvm_clock_read+0x18/0x30
[  324.768725] Free swap  = 0kB
[  324.774081]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  324.778028] Total swap = 0kB
[  324.781043]  ? print_usage_bug+0xc0/0xc0
[  324.786036] 1965979 pages RAM
[  324.789047]  ? __lock_acquire+0x62f/0x4c20
[  324.793087] 0 pages HighMem/MovableOnly
[  324.796191]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  324.800398] 342853 pages reserved
[  324.804368]  ? should_fail+0x22d/0xd01
[  324.809882] 0 pages cma reserved
[  324.813331]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.817251] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  324.820549]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  324.820564]  ? __lock_acquire+0x62f/0x4c20
[  324.820583]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  324.825914] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  324.832345]  ? __lock_acquire+0x62f/0x4c20
[  324.837428] syz-fuzzer cpuset=/ mems_allowed=0
[  324.841655]  ? should_fail+0x22d/0xd01
[  324.869610]  ? rcu_irq_exit+0x1a2/0x390
[  324.873595]  ? mark_held_locks+0x130/0x130
[  324.877837]  ? mark_held_locks+0x130/0x130
[  324.882077]  ? mark_held_locks+0xc7/0x130
[  324.886228]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  324.891247]  ? zap_class+0x640/0x640
[  324.894966]  ? print_usage_bug+0xc0/0xc0
[  324.899033]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  324.904573]  ? check_preemption_disabled+0x48/0x280
[  324.909603]  ? __lock_is_held+0xb5/0x140
[  324.913672]  __alloc_pages_nodemask+0xa80/0xde0
[  324.918346]  ? zap_class+0x640/0x640
[  324.922068]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  324.927100]  ? find_held_lock+0x36/0x1c0
[  324.931173]  ? ____cache_alloc_node+0x1c7/0x1e0
[  324.935845]  ? lock_downgrade+0x900/0x900
[  324.940003]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  324.945692]  cache_grow_begin+0xa5/0x8c0
[  324.949758]  ? do_raw_spin_unlock+0xa7/0x330
[  324.954191]  fallback_alloc+0x204/0x2e0
[  324.958174]  ____cache_alloc_node+0x1c7/0x1e0
[  324.962673]  kmem_cache_alloc_node+0xe3/0x730
[  324.967185]  ? ipv6_get_ifaddr+0x42e/0x620
[  324.971432]  __alloc_skb+0x119/0x770
[  324.975151]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  324.980464]  ? netdev_alloc_frag+0x1f0/0x1f0
[  324.984878]  ? lock_downgrade+0x900/0x900
[  324.989044]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  324.994582]  ? refcount_sub_and_test_checked+0x203/0x310
[  325.000040]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  325.005492]  ? addrconf_rs_timer+0x690/0x690
[  325.009913]  ndisc_alloc_skb+0x144/0x340
[  325.013981]  ndisc_send_rs+0x331/0x6e0
[  325.017874]  addrconf_rs_timer+0x314/0x690
[  325.022117]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.026361]  call_timer_fn+0x272/0x920
[  325.030262]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.034497]  ? process_timeout+0x40/0x40
[  325.038566]  ? __run_timers+0x7da/0xc70
[  325.042545]  ? _raw_spin_unlock_irq+0x27/0x80
[  325.047041]  ? _raw_spin_unlock_irq+0x27/0x80
[  325.051535]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.055785]  ? lockdep_hardirqs_on+0x296/0x5b0
[  325.060378]  ? trace_hardirqs_on+0xbd/0x310
[  325.064700]  ? kasan_check_read+0x11/0x20
[  325.068851]  ? __run_timers+0x7da/0xc70
[  325.072833]  ? trace_hardirqs_off_caller+0x310/0x310
[  325.077942]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.082184]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.086421]  __run_timers+0x7e5/0xc70
[  325.090231]  ? timer_fixup_init+0x70/0x70
[  325.094382]  ? kasan_check_read+0x11/0x20
[  325.098533]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  325.103815]  ? rcu_softirq_qs+0x20/0x20
[  325.107810]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.113353]  ? check_preemption_disabled+0x48/0x280
[  325.118378]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  325.123138]  ? retint_kernel+0x2d/0x2d
[  325.127030]  ? trace_hardirqs_on_caller+0xc0/0x310
[  325.131961]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  325.136721]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  325.142175]  ? zap_class+0x640/0x640
[  325.145897]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.151435]  ? check_preemption_disabled+0x48/0x280
[  325.156463]  ? __lock_is_held+0xb5/0x140
[  325.160527]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.166082]  ? check_preemption_disabled+0x48/0x280
[  325.171107]  run_timer_softirq+0x52/0xb0
[  325.175174]  ? rcu_read_lock_sched_held+0x14f/0x180
[  325.180196]  __do_softirq+0x308/0xb7e
[  325.184001]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  325.188501]  ? lock_downgrade+0x900/0x900
[  325.192653]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  325.197777]  ? pvclock_read_flags+0x160/0x160
[  325.202286]  ? lapic_next_event+0x5a/0x90
[  325.206438]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.211984]  ? kvm_clock_read+0x18/0x30
[  325.215962]  ? kvm_sched_clock_read+0x9/0x20
[  325.220377]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.225921]  ? check_preemption_disabled+0x48/0x280
[  325.230949]  irq_exit+0x17f/0x1c0
[  325.234408]  smp_apic_timer_interrupt+0x1cb/0x760
[  325.239251]  ? smp_reschedule_interrupt+0x109/0x650
[  325.244269]  ? smp_call_function_single_interrupt+0x650/0x650
[  325.250168]  ? interrupt_entry+0xb5/0xc0
[  325.254231]  ? trace_hardirqs_off_caller+0xbb/0x310
[  325.259251]  ? trace_hardirqs_off_caller+0xbb/0x310
[  325.264269]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.269121]  ? trace_hardirqs_on_caller+0x310/0x310
[  325.274140]  ? trace_hardirqs_on_caller+0x310/0x310
[  325.279161]  ? task_prio+0x50/0x50
[  325.282708]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  325.288253]  ? check_preemption_disabled+0x48/0x280
[  325.293275]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.298128]  apic_timer_interrupt+0xf/0x20
[  325.302357]  </IRQ>
[  325.304602] RIP: 0010:kmem_cache_alloc+0x297/0x730
[  325.309538] 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
[  325.328439] RSP: 0000:ffff8801baba7738 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[  325.336148] RAX: 0000000000000000 RBX: 0000000000480020 RCX: 0000000000000000
[  325.343418] RDX: 0000000000000000 RSI: ffff8801b62b8a40 RDI: 0000000000000286
[  325.350704] RBP: ffff8801baba77a0 R08: ffff8801b62b81c0 R09: 0000000000000000
[  325.357972] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  325.365243] R13: ffff8801d9a1c0c0 R14: ffff8801d9a1c0c0 R15: 0000000000480020
[  325.372555]  skb_clone+0x1bb/0x500
[  325.376097]  ? skb_split+0x11e0/0x11e0
[  325.380000]  ? preempt_notifier_register+0x200/0x200
[  325.385102]  ? __switch_to_asm+0x34/0x70
[  325.389160]  ? __switch_to_asm+0x34/0x70
[  325.393217]  ? __switch_to_asm+0x40/0x70
[  325.397274]  ? __switch_to_asm+0x34/0x70
[  325.401331]  ? __switch_to_asm+0x40/0x70
[  325.405395]  ? __switch_to_asm+0x40/0x70
[  325.409453]  ? __switch_to_asm+0x34/0x70
[  325.413510]  ? __switch_to_asm+0x34/0x70
[  325.417585]  ? __switch_to_asm+0x40/0x70
[  325.421644]  ? __switch_to_asm+0x34/0x70
[  325.425715]  bpf_clone_redirect+0xb9/0x490
[  325.429962]  bpf_prog_bebbfe2050753572+0xf5f/0x1000
[  325.434981]  ? __sched_text_start+0x8/0x8
[  325.439130]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  325.443890]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[  325.448655]  ? find_held_lock+0x36/0x1c0
[  325.452728]  ? lock_acquire+0x1ed/0x520
[  325.456705]  ? bpf_test_run+0x3cb/0x780
[  325.460683]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.466228]  ? check_preemption_disabled+0x48/0x280
[  325.471253]  ? kasan_check_read+0x11/0x20
[  325.475421]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  325.480716]  ? rcu_softirq_qs+0x20/0x20
[  325.484696]  ? preempt_schedule+0x4d/0x60
[  325.488855]  ? ___preempt_schedule+0x16/0x18
[  325.493273]  ? bpf_test_run+0x25d/0x780
[  325.497288]  ? netlink_diag_dump+0x2a0/0x2a0
[  325.501706]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  325.507242]  ? bpf_test_init.isra.10+0x70/0x100
[  325.511919]  ? bpf_prog_test_run_skb+0x73b/0xcb0
[  325.516686]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  325.521531]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  325.527076]  ? fput+0x130/0x1a0
[  325.530363]  ? __bpf_prog_get+0x9b/0x290
[  325.534447]  ? bpf_test_finish.isra.9+0x1f0/0x1f0
[  325.539302]  ? bpf_prog_test_run+0x130/0x1a0
[  325.543718]  ? __x64_sys_bpf+0x3d8/0x520
[  325.547793]  ? bpf_prog_get+0x20/0x20
[  325.551616]  ? do_syscall_64+0x1b9/0x820
[  325.555679]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  325.561053]  ? syscall_return_slowpath+0x5e0/0x5e0
[  325.565996]  ? trace_hardirqs_on_caller+0x310/0x310
[  325.571017]  ? prepare_exit_to_usermode+0x3b0/0x3b0
[  325.576040]  ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250
[  325.582709]  ? __switch_to_asm+0x40/0x70
[  325.586783]  ? __switch_to_asm+0x34/0x70
[  325.590852]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  325.595701]  ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  325.601088] CPU: 1 PID: 6041 Comm: syz-fuzzer Not tainted 4.20.0-rc1+ #83
[  325.601157] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  325.608020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  325.608029] Call Trace:
[  325.614597] syz-executor4: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  325.623854]  <IRQ>
[  325.626425] syz-executor4 cpuset=syz4 mems_allowed=0
[  325.636909]  dump_stack+0x244/0x39d
[  325.647752]  ? dump_stack_print_info.cold.1+0x20/0x20
[  325.652965]  warn_alloc.cold.116+0xb7/0x1bd
[  325.657329]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  325.662182]  ? lock_downgrade+0x900/0x900
[  325.666339]  ? trace_hardirqs_off+0xb8/0x310
[  325.670758]  ? trace_hardirqs_off+0xb8/0x310
[  325.675185]  __alloc_pages_slowpath+0x26e8/0x2e10
[  325.680058]  ? warn_alloc+0x120/0x120
[  325.683864]  ? print_usage_bug+0xc0/0xc0
[  325.687928]  ? warn_alloc+0x120/0x120
[  325.691736]  ? warn_alloc+0x120/0x120
[  325.695546]  ? print_usage_bug+0xc0/0xc0
[  325.699614]  ? print_usage_bug+0xc0/0xc0
[  325.703681]  ? __lock_acquire+0x62f/0x4c20
[  325.707922]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  325.713459]  ? should_fail+0x22d/0xd01
[  325.717372]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  325.722489]  ? __lock_acquire+0x62f/0x4c20
[  325.726733]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  325.731847]  ? __lock_acquire+0x62f/0x4c20
[  325.736081]  ? should_fail+0x22d/0xd01
[  325.739968]  ? find_held_lock+0x36/0x1c0
[  325.744039]  ? mark_held_locks+0x130/0x130
[  325.748290]  ? mark_held_locks+0x130/0x130
[  325.752529]  ? zap_class+0x640/0x640
[  325.756243]  ? zap_class+0x640/0x640
[  325.759970]  ? print_usage_bug+0xc0/0xc0
[  325.764033]  ? do_raw_spin_unlock+0xa7/0x330
[  325.768486]  ? zap_class+0x640/0x640
[  325.772200]  ? print_usage_bug+0xc0/0xc0
[  325.776262]  ? wq_watchdog_touch+0x9c/0xfe
[  325.780506]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.786045]  ? check_preemption_disabled+0x48/0x280
[  325.791070]  ? __lock_is_held+0xb5/0x140
[  325.795137]  __alloc_pages_nodemask+0xa80/0xde0
[  325.799821]  ? zap_class+0x640/0x640
[  325.803548]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  325.808577]  ? find_held_lock+0x36/0x1c0
[  325.812652]  ? ____cache_alloc_node+0x1c7/0x1e0
[  325.817488]  ? lock_downgrade+0x900/0x900
[  325.821647]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.827195]  cache_grow_begin+0xa5/0x8c0
[  325.831268]  ? do_raw_spin_unlock+0xa7/0x330
[  325.835691]  fallback_alloc+0x204/0x2e0
[  325.839674]  ____cache_alloc_node+0x1c7/0x1e0
[  325.844179]  kmem_cache_alloc_node+0xe3/0x730
[  325.848705]  ? ipv6_get_ifaddr+0x42e/0x620
[  325.852951]  __alloc_skb+0x119/0x770
[  325.856665]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  325.861950]  ? netdev_alloc_frag+0x1f0/0x1f0
[  325.866387]  ? lock_downgrade+0x900/0x900
[  325.870547]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  325.876085]  ? refcount_sub_and_test_checked+0x203/0x310
[  325.881541]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  325.886992]  ? addrconf_rs_timer+0x690/0x690
[  325.891417]  ndisc_alloc_skb+0x144/0x340
[  325.895484]  ndisc_send_rs+0x331/0x6e0
[  325.899381]  addrconf_rs_timer+0x314/0x690
[  325.903622]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.907870]  call_timer_fn+0x272/0x920
[  325.911759]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.916007]  ? process_timeout+0x40/0x40
[  325.920081]  ? mark_held_locks+0xc7/0x130
[  325.924231]  ? _raw_spin_unlock_irq+0x27/0x80
[  325.928724]  ? _raw_spin_unlock_irq+0x27/0x80
[  325.933223]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.937458]  ? lockdep_hardirqs_on+0x296/0x5b0
[  325.942046]  ? trace_hardirqs_on+0xbd/0x310
[  325.946383]  ? kasan_check_read+0x11/0x20
[  325.950528]  ? __run_timers+0x7da/0xc70
[  325.954508]  ? trace_hardirqs_off_caller+0x310/0x310
[  325.959615]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.963857]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  325.968090]  __run_timers+0x7e5/0xc70
[  325.971909]  ? timer_fixup_init+0x70/0x70
[  325.976064]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[  325.981085]  ? zap_class+0x640/0x640
[  325.984825]  ? print_usage_bug+0xc0/0xc0
[  325.988892]  ? hrtimer_update_softirq_timer+0xa0/0xa0
[  325.994089]  ? find_held_lock+0x36/0x1c0
[  325.998157]  ? zap_class+0x640/0x640
[  326.001887]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.007426]  ? check_preemption_disabled+0x48/0x280
[  326.012478]  ? __lock_is_held+0xb5/0x140
[  326.016543]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.022081]  ? check_preemption_disabled+0x48/0x280
[  326.027107]  run_timer_softirq+0x52/0xb0
[  326.031173]  ? rcu_read_lock_sched_held+0x14f/0x180
[  326.036194]  __do_softirq+0x308/0xb7e
[  326.039999]  ? ktime_get_raw_ts64+0x4d0/0x4d0
[  326.044495]  ? lock_downgrade+0x900/0x900
[  326.048696]  ? __irqentry_text_end+0x1f9658/0x1f9658
[  326.053811]  ? pvclock_read_flags+0x160/0x160
[  326.058315]  ? lapic_next_event+0x5a/0x90
[  326.062468]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.068011]  ? kvm_clock_read+0x18/0x30
[  326.071986]  ? kvm_sched_clock_read+0x9/0x20
[  326.076395]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.081947]  ? check_preemption_disabled+0x48/0x280
[  326.086981]  irq_exit+0x17f/0x1c0
[  326.090436]  smp_apic_timer_interrupt+0x1cb/0x760
[  326.095287]  ? smp_reschedule_interrupt+0x109/0x650
[  326.100308]  ? smp_call_function_single_interrupt+0x650/0x650
[  326.106194]  ? interrupt_entry+0xb5/0xc0
[  326.110270]  ? trace_hardirqs_off_caller+0xbb/0x310
[  326.115296]  ? trace_hardirqs_off_caller+0xbb/0x310
[  326.120336]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  326.125204]  ? trace_hardirqs_on_caller+0x310/0x310
[  326.130233]  ? trace_hardirqs_on_caller+0x310/0x310
[  326.135267]  ? task_prio+0x50/0x50
[  326.138829]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.144370]  ? check_preemption_disabled+0x48/0x280
[  326.149395]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  326.154264]  apic_timer_interrupt+0xf/0x20
[  326.158498]  </IRQ>
[  326.160744] RIP: 0010:check_memory_region+0x121/0x1b0
[  326.165944] Code: 29 c0 e9 6c ff ff ff 4d 85 c0 74 ba 48 b8 01 00 00 00 00 fc ff df 4d 01 c8 48 01 d8 41 80 39 00 74 08 e9 8c 00 00 00 48 89 d8 <4c> 39 c0 74 97 80 38 00 48 8d 58 01 74 ef eb 87 4c 89 c0 49 39 c2
[  326.184844] RSP: 0000:ffff8801c1cbdf30 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[  326.192564] RAX: ffffed003b5e5b68 RBX: 1ffff1003b5e5b67 RCX: ffffffff816a7052
[  326.199836] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801daf2db38
[  326.207106] RBP: ffff8801c1cbdf48 R08: ffffed003b5e5b68 R09: ffffed003b5e5b67
[  326.214376] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffffed003b5e5b68
[  326.221645] R13: ffff8801c1cbdfd0 R14: ffff8801daf2db38 R15: ffffffffffffffff
[  326.228931]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.234233]  kasan_check_read+0x11/0x20
[  326.238207]  rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.243317]  ? rcu_softirq_qs+0x20/0x20
[  326.247325]  rcu_is_watching+0x10/0x30
[  326.251214]  list_lru_count_one+0x362/0x450
[  326.255541]  ? list_lru_isolate_move+0x3c0/0x3c0
[  326.260307]  ? shmem_free_inode+0xd0/0xd0
[  326.264461]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.269999]  ? ubifs_shrink_count+0xc4/0x100
[  326.274414]  super_cache_count+0x153/0x2e0
[  326.278657]  do_shrink_slab+0x1b1/0xd30
[  326.282640]  ? lock_acquire+0x1ed/0x520
[  326.286624]  ? snapshot_refaults+0x290/0x290
[  326.291039]  ? lock_release+0xa00/0xa00
[  326.295021]  ? perf_trace_sched_process_exec+0x860/0x860
[  326.300482]  ? down_read_trylock+0xda/0x140
[  326.304806]  ? shrink_slab+0x207/0x8c0
[  326.308694]  ? downgrade_write+0x270/0x270
[  326.312940]  shrink_slab+0x389/0x8c0
[  326.316654]  ? shrink_active_list+0x1f00/0x1f00
[  326.321335]  ? unregister_memcg_shrinker.isra.44+0x50/0x50
[  326.326967]  ? kasan_check_read+0x11/0x20
[  326.331120]  ? do_raw_spin_unlock+0xa7/0x330
[  326.335534]  ? ___preempt_schedule+0x16/0x18
[  326.339958]  ? _raw_spin_unlock+0x3f/0x50
[  326.344118]  shrink_node+0x431/0x16b0
[  326.347921]  ? mem_cgroup_split_huge_fixup+0x1b0/0x1b0
[  326.353223]  ? shrink_node_memcg+0x18f0/0x18f0
[  326.357810]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  326.362401]  ? trace_hardirqs_on+0xbd/0x310
[  326.366726]  ? vmpressure+0x271/0x340
[  326.370545]  ? do_raw_spin_trylock+0x270/0x270
[  326.375135]  ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20
[  326.380673]  ? __cpuset_node_allowed+0x19b/0x660
[  326.385439]  ? cpuset_nodemask_valid_mems_allowed+0x90/0x90
[  326.391155]  ? vmpressure+0x1a2/0x340
[  326.394964]  do_try_to_free_pages+0x3e7/0x1290
[  326.399545]  ? zap_class+0x640/0x640
[  326.403275]  ? shrink_node+0x16b0/0x16b0
[  326.407350]  ? __lock_is_held+0xb5/0x140
[  326.411426]  try_to_free_pages+0x4d0/0xb90
[  326.415667]  ? do_try_to_free_pages+0x1290/0x1290
[  326.420526]  ? lock_acquire+0x1ed/0x520
[  326.424503]  ? set_page_refcounted+0x280/0x280
[  326.429092]  ? lock_release+0xa00/0xa00
[  326.433071]  ? _raw_spin_unlock_irq+0x60/0x80
[  326.437571]  ? psi_memstall_enter+0x240/0x2b0
[  326.442070]  ? psi_memstall_tick+0x230/0x230
[  326.446491]  __alloc_pages_slowpath+0xa14/0x2e10
[  326.451278]  ? warn_alloc+0x120/0x120
[  326.455089]  ? mark_held_locks+0x130/0x130
[  326.459357]  ? find_get_entry+0xaae/0x1120
[  326.463602]  ? filemap_map_pages+0x1a20/0x1a20
[  326.468193]  ? zap_class+0x640/0x640
[  326.471913]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  326.477456]  ? check_preemption_disabled+0x48/0x280
[  326.482482]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.488023]  ? should_fail+0x22d/0xd01
[  326.491915]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  326.497025]  ? zap_class+0x640/0x640
[  326.500779]  ? __lock_is_held+0xb5/0x140
[  326.504851]  ? mark_held_locks+0x130/0x130
[  326.509094]  ? lock_release+0xa00/0xa00
[  326.513072]  ? perf_trace_sched_process_exec+0x860/0x860
[  326.518532]  ? xa_load+0x2ba/0x460
[  326.522076]  ? lock_downgrade+0x900/0x900
[  326.526235]  ? __might_sleep+0x95/0x190
[  326.530216]  __alloc_pages_nodemask+0xa80/0xde0
[  326.534894]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  326.539918]  ? __page_cache_alloc+0x191/0x5c0
[  326.544415]  ? xa_load+0x2e1/0x460
[  326.547961]  ? xa_clear_mark+0x40/0x40
[  326.551853]  ? zap_class+0x640/0x640
[  326.555577]  ? zap_class+0x640/0x640
[  326.559296]  ? zap_class+0x640/0x640
[  326.563013]  ? __do_page_cache_readahead+0x663/0x810
[  326.568122]  ? find_held_lock+0x36/0x1c0
[  326.572194]  ? __sanitizer_cov_trace_const_cmp2+0x18/0x20
[  326.577740]  alloc_pages_current+0x173/0x350
[  326.582164]  __page_cache_alloc+0x38c/0x5c0
[  326.586488]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.591418]  ? kasan_check_read+0x11/0x20
[  326.595571]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.600852]  ? generic_perform_write+0x6a0/0x6a0
[  326.605610]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.611151]  ? check_preemption_disabled+0x48/0x280
[  326.616179]  filemap_fault+0x1595/0x25f0
[  326.620253]  ? __lock_page_or_retry+0xa00/0xa00
[  326.624932]  ? mark_held_locks+0x130/0x130
[  326.629177]  ? filemap_map_pages+0xd6b/0x1a20
[  326.633682]  ? lock_downgrade+0x900/0x900
[  326.637831]  ? check_preemption_disabled+0x48/0x280
[  326.642851]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.647794]  ? kasan_check_read+0x11/0x20
[  326.651946]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.657227]  ? rcu_softirq_qs+0x20/0x20
[  326.661221]  ? filemap_map_pages+0xd92/0x1a20
[  326.665735]  ? find_get_entries_tag+0x1400/0x1400
[  326.670588]  ? find_held_lock+0x36/0x1c0
[  326.674668]  ? lock_acquire+0x1ed/0x520
[  326.678643]  ? ext4_filemap_fault+0x7a/0xad
[  326.682974]  ? lock_release+0xa00/0xa00
[  326.686964]  ? perf_trace_sched_process_exec+0x860/0x860
[  326.692418]  ? print_usage_bug+0xc0/0xc0
[  326.696495]  ? down_read+0x8d/0x120
[  326.700124]  ? ext4_filemap_fault+0x7a/0xad
[  326.704447]  ? __down_interruptible+0x700/0x700
[  326.709121]  ? find_held_lock+0x36/0x1c0
[  326.713192]  ext4_filemap_fault+0x82/0xad
[  326.717379]  __do_fault+0x100/0x6b0
[  326.721103]  ? lock_downgrade+0x900/0x900
[  326.725254]  ? pmd_devmap_trans_unstable+0x220/0x220
[  326.730369]  ? kasan_check_read+0x11/0x20
[  326.734516]  ? do_raw_spin_unlock+0xa7/0x330
[  326.738928]  ? do_raw_spin_trylock+0x270/0x270
[  326.743529]  __handle_mm_fault+0x3ea0/0x5be0
[  326.747965]  ? vmf_insert_mixed_mkwrite+0x40/0x40
[  326.752818]  ? lockdep_hardirqs_on+0x3bb/0x5b0
[  326.757419]  ? zap_class+0x640/0x640
[  326.761133]  ? zap_class+0x640/0x640
[  326.764850]  ? __x64_sys_futex+0x53e/0x6a0
[  326.769090]  ? find_held_lock+0x36/0x1c0
[  326.773161]  ? handle_mm_fault+0x42a/0xc70
[  326.777400]  ? lock_downgrade+0x900/0x900
[  326.781552]  ? check_preemption_disabled+0x48/0x280
[  326.786576]  ? rcu_read_unlock_special+0x1c0/0x1c0
[  326.791509]  ? kasan_check_read+0x11/0x20
[  326.795656]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  326.800934]  ? rcu_softirq_qs+0x20/0x20
[  326.804916]  ? trace_hardirqs_off_caller+0x310/0x310
[  326.810027]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  326.815571]  ? check_preemption_disabled+0x48/0x280
[  326.820598]  handle_mm_fault+0x54f/0xc70
[  326.824671]  ? __handle_mm_fault+0x5be0/0x5be0
[  326.829258]  ? find_vma+0x34/0x190
[  326.832816]  __do_page_fault+0x5e8/0xe60
[  326.836878]  ? trace_hardirqs_off+0xb8/0x310
[  326.841308]  do_page_fault+0xf2/0x7e0
[  326.845113]  ? vmalloc_sync_all+0x30/0x30
[  326.849263]  ? error_entry+0x70/0xd0
[  326.852987]  ? trace_hardirqs_off_caller+0xbb/0x310
[  326.858008]  ? trace_hardirqs_on_caller+0xc0/0x310
[  326.862940]  ? syscall_return_slowpath+0x5e0/0x5e0
[  326.867870]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  326.872721]  ? trace_hardirqs_on_caller+0x310/0x310
[  326.877742]  ? __bpf_trace_preemptirq_template+0x30/0x30
[  326.883205]  ? prepare_exit_to_usermode+0x291/0x3b0
[  326.888227]  ? page_fault+0x8/0x30
[  326.891780]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[  326.896633]  ? page_fault+0x8/0x30
[  326.900179]  page_fault+0x1e/0x30
[  326.903635] RIP: 0033:0x404068
[  326.906849] Code: Bad RIP value.
[  326.910215] RSP: 002b:000000c420024e48 EFLAGS: 00010206
[  326.915578] RAX: 000000c4286b1860 RBX: 000000c42016b801 RCX: 000000c426f6c638
[  326.922852] RDX: 000000c4286b1860 RSI: 0000000000000001 RDI: 0000000000000001
[  326.930122] RBP: 000000c420024ed8 R08: 00007ffe2751f0b0 R09: 00007ffe2751f080
[  326.937394] R10: 0000000000009bc8 R11: 00000000000000cf R12: 0000000000000001
[  326.944666] R13: 0000000000000020 R14: 0000000000000013 R15: 000000c424b43960
[  326.952479] warn_alloc_show_mem: 1 callbacks suppressed
[  326.952491] CPU: 0 PID: 10267 Comm: syz-executor4 Not tainted 4.20.0-rc1+ #83
[  326.952493] Mem-Info:
[  326.952525] active_anon:47970 inactive_anon:4891 isolated_anon:0
[  326.952525]  active_file:13 inactive_file:28 isolated_file:0
[  326.952525]  unevictable:0 dirty:1 writeback:0 unstable:0
[  326.952525]  slab_reclaimable:9247 slab_unreclaimable:1454678
[  326.952525]  mapped:49154 shmem:4943 pagetables:666 bounce:0
[  326.952525]  free:13541 free_pcp:161 free_cma:0
[  326.957865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  326.965146] Node 0 active_anon:191880kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:4kB writeback:0kB shmem:19772kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 174080kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
[  326.967544] Call Trace:
[  327.000587] 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
[  327.009933]  <IRQ>
[  327.037852] lowmem_reserve[]: 0 2818 6321 6321
[  327.040438]  dump_stack+0x244/0x39d
[  327.066523] Node 0 DMA32 free:24752kB min:30052kB low:37564kB high:45076kB active_anon:4096kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888776kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB
[  327.068677]  ? dump_stack_print_info.cold.1+0x20/0x20
[  327.073229] lowmem_reserve[]: 0 0 3503 3503
[  327.076861]  warn_alloc.cold.116+0xb7/0x1bd
[  327.104414] Node 0 Normal free:13504kB min:37364kB low:46704kB high:56044kB active_anon:187784kB inactive_anon:19564kB active_file:52kB inactive_file:112kB unevictable:0kB writepending:4kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6912kB pagetables:2664kB bounce:0kB free_pcp:396kB local_pcp:140kB free_cma:0kB
[  327.109599]  ? zone_watermark_ok_safe+0x3f0/0x3f0
[  327.113897] lowmem_reserve[]: 0 0 0 0
[  327.118222]  ? lock_downgrade+0x900/0x900
[  327.147519] 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
[  327.152359]  ? trace_hardirqs_off+0xb8/0x310
[  327.156133] Node 0 DMA32: 4*4kB (M) 2*8kB (UM) 1*16kB (M) 4*32kB (UM) 4*64kB (UM) 2*128kB (M) 2*256kB (M) 2*512kB (M) 4*1024kB (UM) 3*2048kB (UM) 3*4096kB (M) = 24752kB
[  327.160277]  ? trace_hardirqs_off+0xb8/0x310
[  327.173789] Node 0 Normal: 846*4kB (UME) 401*8kB (UME) 223*16kB (UME) 81*32kB (UME) 11*64kB (M) 1*128kB (U) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13584kB
[  327.178195]  __alloc_pages_slowpath+0x26e8/0x2e10
[  327.193355] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
[  327.197788]  ? warn_alloc+0x120/0x120
[  327.212218] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
[  327.217052]  ? print_usage_bug+0xc0/0xc0
[  327.225866] 4984 total pagecache pages
[  327.229660]  ? warn_alloc+0x120/0x120
[  327.238222] 0 pages in swap cache
[  327.242273]  ? warn_alloc+0x120/0x120
[  327.246142] Swap cache stats: add 0, delete 0, find 0/0
[  327.249936]  ? print_usage_bug+0xc0/0xc0
[  327.253366] Free swap  = 0kB
[  327.257162]  ? kvm_clock_read+0x18/0x30
[  327.262502] Total swap = 0kB
[  327.266563]  ? __sanitizer_cov_trace_cmp4+0x16/0x20
[  327.269564] 1965979 pages RAM
[  327.273528]  ? print_usage_bug+0xc0/0xc0
[  327.276521] 0 pages HighMem/MovableOnly
[  327.281542]  ? __lock_acquire+0x62f/0x4c20
[  327.284623] 342853 pages reserved
[  327.288678]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[  327.292630] 0 pages cma reserved
[  327.296863]  ? should_fail+0x22d/0xd01
[  327.300354] ICMPv6: ndisc: ndisc_alloc_skb failed to allocate an skb
[  327.305818]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  327.305836]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  327.309238] syz-fuzzer: page allocation failure: order:0, mode:0x484020(GFP_ATOMIC|__GFP_COMP), nodemask=(null)
[  327.313068]  ? __lock_acquire+0x62f/0x4c20
[  327.319539] syz-fuzzer cpuset=/ mems_allowed=0
[  327.324817]  ? fault_create_debugfs_attr+0x1f0/0x1f0
[  327.353988]  ? __lock_acquire+0x62f/0x4c20
[  327.358226]  ? should_fail+0x22d/0xd01
[  327.362115]  ? rcu_irq_exit+0x1a2/0x390
[  327.366101]  ? mark_held_locks+0x130/0x130
[  327.370347]  ? mark_held_locks+0x130/0x130
[  327.374591]  ? mark_held_locks+0xc7/0x130
[  327.378741]  ? smp_apic_timer_interrupt+0x1cb/0x760
[  327.383778]  ? zap_class+0x640/0x640
[  327.387499]  ? print_usage_bug+0xc0/0xc0
[  327.391571]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.397112]  ? check_preemption_disabled+0x48/0x280
[  327.402137]  ? __lock_is_held+0xb5/0x140
[  327.406204]  __alloc_pages_nodemask+0xa80/0xde0
[  327.410874]  ? zap_class+0x640/0x640
[  327.414593]  ? __alloc_pages_slowpath+0x2e10/0x2e10
[  327.419622]  ? find_held_lock+0x36/0x1c0
[  327.423699]  ? ____cache_alloc_node+0x1c7/0x1e0
[  327.428372]  ? lock_downgrade+0x900/0x900
[  327.432527]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.438070]  cache_grow_begin+0xa5/0x8c0
[  327.442132]  ? do_raw_spin_unlock+0xa7/0x330
[  327.446553]  fallback_alloc+0x204/0x2e0
[  327.450536]  ____cache_alloc_node+0x1c7/0x1e0
[  327.455039]  kmem_cache_alloc_node+0xe3/0x730
[  327.459542]  ? ipv6_get_ifaddr+0x42e/0x620
[  327.463805]  __alloc_skb+0x119/0x770
[  327.467520]  ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170
[  327.472816]  ? netdev_alloc_frag+0x1f0/0x1f0
[  327.477226]  ? lock_downgrade+0x900/0x900
[  327.481383]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[  327.486922]  ? refcount_sub_and_test_checked+0x203/0x310
[  327.492382]  ? refcount_inc_not_zero_checked+0x2f0/0x2f0
[  327.497839]  ? addrconf_rs_timer+0x690/0x690
[  327.502260]  ndisc_alloc_skb+0x144/0x340
[  327.506330]  ndisc_send_rs+0x331/0x6e0
[  327.510226]  addrconf_rs_timer+0x314/0x690
[  327.514469]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.518719]  call_timer_fn+0x272/0x920
[  327.522605]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.526842]  ? process_timeout+0x40/0x40
[  327.530916]  ? __run_timers+0x7da/0xc70
[  327.534898]  ? _raw_spin_unlock_irq+0x27/0x80
[  327.539397]  ? _raw_spin_unlock_irq+0x27/0x80
[  327.543897]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.548136]  ? lockdep_hardirqs_on+0x296/0x5b0
[  327.552724]  ? trace_hardirqs_on+0xbd/0x310
[  327.557053]  ? kasan_check_read+0x11/0x20
[  327.561203]  ? __run_timers+0x7da/0xc70
[  327.565186]  ? trace_hardirqs_off_caller+0x310/0x310
[  327.570297]  ? ipv6_get_lladdr+0x5e0/0x5e0
[  327.574538]  ? ipv6_get_lladdr+0x5e0/0x5e0